A ROLLER LASER TEXTURING PROCESSING EQUIPMENT AND ITS PROCESSING METHOD

Abstract

Provided is a roller laser texturing processing equipment and its processing method, comprising the following steps: dividing the processing area, determining the distribution scheme: obtaining a distribution scheme of end-to-end, unordered and uniform texturing lattice according to said roller processing unit parameters and morphological parameters; determining the output signal: the laser output position signal, beam energy regulation signal and deflection signal of one-dimensional beam deflection unit are obtained through the information processing module; performing roller laser texturing processing: said laser output position signal is used to control the light source module to emit the laser; said beam energy regulation signal and deflection signal of one-dimensional beam deflection unit are input into the laser terminal output module, respectively, to generate an unordered laser lattice, each laser terminal output module is used to process a roller processing unit. The present invention can guarantee the unordered degree of the texturing points and the uniformity of the morphology distribution at the same time, the surface consistency of the produced cold-rolled plate is better in the subsequent coating treatment.

Claims

1. A roller laser texturing processing method, characterized in that, it comprises the following steps: dividing processing zones: the processing zone on the surface of roller is evenly divided into several roller processing units; determining the scheme of distribution: according to the mentioned roller processing unit parameters and morphological parameters, the distribution scheme of end-to-end, unordered and uniformly distributed texturing lattice is obtained by the design method of end-to-end, unordered and uniformly distributed lattice; determining the output signal: on the basis of the mentioned distribution scheme of end-to-end, unordered and uniformly distributed texturing lattice, the machine tool parameters and laser parameters, the laser output position signal, beam energy regulation signal and deflection signal of one-dimensional beam deflection unit are obtained through the information processing module; laser texturing processing of roller: said laser output position signal is used for controlling the light source module to emit laser; said beam energy regulation signal and deflection signal of one-dimensional beam deflection unit are input into the laser terminal output module, respectively, to generate the unordered laser lattice, each laser terminal output module is used for processing one roller processing unit.

2. Implementing the method for roller laser texturing processing said in claim 1, characterized in that division of the processing zone includes specifically: Determining the roller surface processing zone; said roller processing zone being a square area with length L.sub.01 and width πd, wherein, L.sub.01=5%˜100%L.sub.0-01 is the distance from the end face of roller, L.sub.0-01=0˜90%L.sub.0; L.sub.0 is the developed length of the roller surface, and d is the diameter of the roller; the processing zone of roller is evenly divided into m roller processing units, and the length of any roller processing unit is L.sub.1, $L_1=\frac{1}{m_{\max }}{L}_{01};$ the width or any roller processing unit is πd; wherein, m ∈ {1,2,3. . . m.sub.max}, m.sub.max=1˜30.

3. Implementing the method for roller laser texturing processing said in claim 1, characterized in that the laser terminal output module includes beam back-turning unit 6, beam energy regulation unit 5 and one-dimensional beam deflection unit 4; the incident laser from said light source module passes successively through the beam back-turning unit 6, beam energy regulation unit 5 and one-dimensional beam deflection unit 4, and then into the roller processing unit; said beam back-turning unit 6 is used to split the incident laser from the light source module into a reflected laser perpendicular to the axis direction of the roller and a transmitted laser parallel to the axis direction of the roller; said reflected laser enters into the beam energy regulating unit 5, and said transmitted laser enters into the next laser terminal output module; said beam energy regulating unit 5 is used to change the energy of said reflected laser; said one-dimensional beam deflection unit 4 is used to offset the angle of said reflected laser.

4. Implementing the method for roller laser texturing processing said in claim 3, characterized in that based on the different coating properties of each semi-reflective lens, the beam back-turning unit 6 makes the energy ratio of reflected laser and transmitted laser as: $\frac{P_m}{P_{m-}}=1\text{:}\left(m_{\max }-m\right)\text{;}{P}_m=P_{\mathrm{output}}=\frac{1}{m_{\max }}{P}_{\mathrm{input}},m=1,2,3\mathrm{.Math.}{m}_{\max };$ wherein P.sub.m is the power of reflected laser split by the beam back-turning unit 6 in the Line.sub.m-th laser terminal output module; P.sub.m—is the power of transmitted laser split by the beam back-turning unit 6 in the Line.sub.m-th laser terminal output module; P.sub.input is the power of laser source output by the laser source module; P.sub.output is the laser power input by the laser terminal output module. said beam energy regulating unit 5 attenuates the beam energy at a fixed value based on the input electrical signal ψ, that is P.sub.focus=(1-Damp(ψ) P.sub.output, wherein ψ is the input electric signal of the driving power supply of the beam energy regulating unit 5, ψ ∈ [ψ.sub.min, ψ.sub.max], the corresponding energy attenuation ratio Damp(ψ) varies from 0 to 100%, ψ.sub.min is the minimum input electrical signal; ψ.sub.max is the maximum input electrical signal; Damp (ψ) is the laser energy attenuation ratio; P.sub.focus is the laser power output by said beam energy regulating unit; said one-dimensional beam deflection unit 4 makes the beam deflect in one-dimension at a fixed angle α according to the input electrical signal ξ, then the beam passes through the focus lens and acts on the area to be processed, so as to make focal point offset a determined distance σ relative to the optical axis,
σ=f(α,L.sub.2, f)=f(α(ξ),L.sub.2,f),
σ.sub.min=f(α.sub.min, L.sub.2, f)=f(0L.sub.2, f)
σ.sub.max=f(η*α.sub.max, L.sub.2, f) wherein, L.sub.2 is the distance between said one-dimensional beam deflection unit 4 and the surface of the workpiece; f is the focal length when said one-dimensional beam deflection unit 4 does not deflect; α is the deflection angle of beam caused by the one-dimensional beam deflecting unit 4, that is α=α(ξ); α.sub.min is the minimum deflection angle of beam caused by the one-dimensional beam deflecting unit 4; α.sub.max is the maximum deflection angle of beam caused by the one-dimensional beam deflecting unit 4; η is the safety service factor of one-dimensional beam deflection unit 4; σ is the offset of focal position; σ.sub.min is the minimum offset of focal position; σ.sub.max is the maximum offset of focal position.

5. Implementing the method for roller laser texturing processing said in claim 1, characterized in that said design method of the end-to-end, unordered and uniform lattice distribution includes the following steps: according to the distribution of morphology parameters, the circle center set A.sub.0 of texturing points of uniform lattice distribution is established, which is as follows specifically: $A_0=\left\{\left(x_{0i},y_{0j}\right)|\begin{array}{cc}{x}_{0i}=a\left(j-1\right),& y_{0j}=b\left(i-1\right),\\ i=1,2,3\mathrm{.Math.}{i}_{\max },& j=1,2,3\mathrm{.Math.}{j}_{\max }\end{array}\right\}$ wherein, A.sub.0 is the set of circle center coordinates of texturing points of uniform lattice distribution; (x.sub.0i, y.sub.0j) is the circle center coordinate of texturing point of uniform lattice distribution in row i and column j; i represents the row serial number; i.sub.max is the maximum row serial number; i.sub.max=πd/b; j represents the column serial number; j.sub.max=[L.sub.1/α]+1; j.sub.max is the maximum column serial number; a is the morphologic distribution dot spacing, which is the distance between two texturing hard points in the x direction; b is morphologic distribution line spacing, which is the distance between two texturing hard points in they direction; the set ΔX of random displacement vectors for each texturing point in uniform lattice distribution is established, which is as follows specifically: $\Delta X=\left\{\left(\delta x_i,\delta y_j\right)|\begin{array}{c}\delta x_i=\mathrm{rand}\left(-1,1\right)*{\mathrm{.Math.}}_b,\\ \delta y_j=\mathrm{rand}\left(-1,1\right)*{\mathrm{.Math.}}_a,\\ i=1,2,3\mathrm{.Math.}{i}_{\max },j=1,2,3\mathrm{.Math.}{j}_{\max }\end{array}\right\}$ wherein, ΔX is the set of random displacement vectors for each texturing point in uniform lattice distribution; (δx.sub.i, δy.sub.j) is the random displacement vector of the circle center coordinate(x.sub.0i, y.sub.0j) of the texturing points of uniform lattice distribution in row i and column j in the uniform lattice distribution; ε.sub.a is the constant of column offset; ε.sub.b is the constant of row offset; establishing the circle center set A of texturing points of unordered and uniform distribution: add the set A .sub.0 of circle center coordinates of texturing points of uniform lattice distribution to the set ΔX of random displacement vectors for each texturing point in uniform lattice distribution, as follows: $A=A_0+\Delta X=\left\{\left(x_i{y}_i\right)|\begin{array}{c}\left(x_i,y_i\right)=\left(\delta x_{0i},\delta y_{0j}\right)+\left(\delta x_i,\delta y_j\right),\\ i=1,2,3\mathrm{.Math.}{i}_{\max },j=1,2,3\mathrm{.Math.}{j}_{\max }\end{array}\right\}$ wherein, A is the circle center set of texturing points of unordered and uniform distribution; (x.sub.i, y.sub.j) is the circle center coordinates of texturing points of unordered and uniform distribution; finding the bad points: find the set SP of row and column sequences of the bad points of unordered and uniform distribution according to the tolerance to overlap of texturing points, as follows specifically: $\mathrm{SP}=\left\{\left(u_q,w_q\right)|\begin{array}{c}\left(u_q,w_q\right)=\left(i,j\right),\\ .Math.A\left(i,j\right)-A\left(i+1,j\right).Math.<\zeta *D\mathrm{or}\\ .Math.A\left(i,j\right)-A\left(i,j+1\right).Math.<\zeta *D\mathrm{or}\\ .Math.A\left(i,j\right)-A\left(i+1,j+1\right).Math.<\zeta *D,\\ i=2,3,4\mathrm{.Math.}{i}_{\max }-1,\\ j=2,3,4\mathrm{.Math.}{j}_{\max }-1,\\ q=1,2,3\mathrm{.Math.}\end{array}\right\}$ wherein, SP is the set of row and column sequences of the bad points of unordered and uniform distribution; A(i,j) is the circle center coordinate of texturing points in row i and column j in the set of the center coordinates of texturing points of unordered and uniform distribution in row i and column j; (u.sub.q, w.sub.q) is the coordinate row and column sequences of the q-th bad point; q is the sequence number of bad point; ζ is an overlap tolerance constant of texturing points of unordered and uniform distribution; estimating whether there is a bad point: there are bad points when SP≠Ø, then the random displacement vector set ΔX is adjusted according to the bad points set SP of unordered and uniform distribution, and the steps of establishing the circle center set A of texturing points of unordered and uniform distribution and finding the bad points are repeated until SP=Ø; while SP=Ø, there are no bad points; establishing the circle center set Aex of texturing points of unordered and uniform distribution by left-right exchange of the circle center set A of texturing points of unordered and uniform distribution with reference to the axial center line: when SP=Ø the circle center set A of texturing points of unordered and uniform distribution is subjected to left-right exchange with reference to the axial center line, so that the lap joint of the processing areas of a number of laser terminal output modules can be achieved: $\mathrm{Aex}=\left\{\left({\mathrm{xex}}_i,{\mathrm{yex}}_j\right)|\begin{array}{c}\left({\mathrm{xex}}_i,{\mathrm{yex}}_j\right)\{\begin{array}{cc}\left(x_i+\frac{1}{2}{L}_1,y_j\right),& x_i<\frac{1}{2}{L}_1\\ \left(x_i-\frac{1}{2}{L}_1,y_j\right),& x_i\ge \frac{1}{2}{L}_1\end{array},\\ \left(x_i,y_j\right)\in A,\\ i=1,2,3\mathrm{.Math.}{i}_{\max },j=1,2,3\mathrm{.Math.}{j}_{\max }\end{array}\right\}$ wherein, Aex is the circle center set of texturing points of unordered and uniform distribution which is obtained through left-right exchange of the circle center set A of texturing points of unordered and uniform distribution with reference to the axial center line; (xex.sub.i, yex.sub.j) refers to the circle center coordinates of texturing points in row i and column j after left-right exchange; finding the bad points in the area near the center line: in the area near the center line after the process of left-right exchange, find the set SPex of row and column sequences of the bad points of unordered and uniform distribution according to the tolerance to overlap of texturing points, as follows specifically: $\mathrm{SPex}=\left\{\left({\mathrm{uex}}_{\mathrm{qex},}{\mathrm{wex}}_{\mathrm{qex}}\right)|\begin{array}{c}\left({\mathrm{uex}}_{\mathrm{qex}},{\mathrm{wex}}_{\mathrm{qex}}\right)=\left(i,j\right),\\ .Math.\mathrm{Aex}\left(i,j\right)-\mathrm{Aex}\left(i+1,j\right).Math.<\zeta *D\mathrm{or}\\ .Math.\mathrm{Aex}\left(i,j\right)-\mathrm{Aex}\left(i,j+1\right).Math.<\zeta *D\mathrm{or}\\ .Math.\mathrm{Aex}\left(i,j\right)-\mathrm{Aex}\left(i+1,j+1\right).Math.<\zeta *D,\\ \mathrm{Aex}\left(i,j\right)\in \mathrm{Center},\\ i=1,2,3\mathrm{.Math.}{i}_{\max },\\ j=1,2,3\mathrm{.Math.}{j}_{\max },\\ \mathrm{qex}=1,2,3\mathrm{.Math.}\end{array}\right\}$ wherein, SPex is the set of row and column sequences of the bad points of unordered and uniform distribution found in the area near the center line after the process of left-right exchange according to the tolerance to overlap of texturing points; (uex.sub.qex, wex.sub.qex) is the row and column sequences of coordinate of the qex-th bad point; qex is the sequence number of bad point; Aex(i,j) is the circle center coordinates of texturing point in row i and column j in the set of the circle center coordinates of texturing points of unordered and uniform distribution after exchange; Center is the area near the center line after the process of left-right exchange: $\mathrm{Center}=\left\{\left(x,y\right)|x\in \left[\left(1-\frac{\varpi }{2}\right)\frac{L_1}{2},\left(1+\frac{\varpi }{2}\right)\frac{L_1}{2}\right],y\in \left[0,\pi d\right]\right\}$ where ω is the proportion of the area near the input center line; estimating whether there is a bad point in the area near the center line: there are bad points when SPex≠Ø, then the position of bad points in the area near the centerline is adjusted according to the bad points set SPex of unordered and uniform distribution in the area near the centerline, and the steps of establishing the circle center set Aex of texturing points of unordered and uniform distribution by left-right exchange of the circle center set A of texturing points of unordered and uniform distribution with reference to the axial center line and finding the bad points in the area near the center line are repeated until SPex=Ø; while SPex=Ø, there are no bad points, that is, Aex is the mentioned distribution scheme of end-to-end, unordered and uniformly distributed texturing lattice.

6. Implementing the method for roller laser texturing processing said in claim 5, characterized in that the random displacement vector set ΔX is adjusted according to the bad points set SP of unordered and uniform distribution, as follows specifically: $\Delta X=\left\{\left(\delta x_i,\delta y_j\right)|\begin{array}{c}\left(\delta x_i,\delta y_j\right)=\left(\delta {\mathrm{xre}}_i,\delta {\mathrm{yre}}_j\right),\\ \left(\delta {\mathrm{xre}}_i,\delta {\mathrm{yre}}_j\right)\in \Delta \mathrm{Xre},\\ i=1,2,3\mathrm{.Math.}{i}_{\max },j=1,2,3\mathrm{.Math.}{j}_{\max },\end{array}\right\}$ $\mathrm{where}\Delta \mathrm{Xre}=\left\{\left(\delta {\mathrm{xre}}_i,\delta {\mathrm{yre}}_j\right)|\begin{array}{c}\left(\delta {\mathrm{xre}}_i,\delta {\mathrm{yre}}_j\right)=\{\begin{array}{cc}\lambda \left(\delta x_i,\delta y_j\right),& \left(i,j\right)\in \mathrm{SP}\\ \left(\delta x_i,\delta y_j\right),& \left(i,j\right).Math.\mathrm{SP}\end{array},\\ i=1,2,3\mathrm{.Math.}{i}_{\max },j=1,2,3\mathrm{.Math.}{j}_{\max },\\ \left(\delta x_i,\delta y_j\right)\in \Delta X\end{array}\right\}$ wherein, ΔXre is the adjusted set of random displacement vectors; (δxre.sub.i, δyre .sub.j) is the adjusted random displacement vector; λ is the adjustment ratio of random displacement vector for a bad point; the position of bad points in the area near the centerline is adjusted according to the mentioned bad points set SPex of unordered and uniform distribution in the area near the centerline, as follows specifically: $\mathrm{Aex}=\left\{\left({\mathrm{xex}}_i,{\mathrm{yex}}_j\right)|\begin{array}{c}\left({\mathrm{xex}}_i,{\mathrm{yex}}_j\right)=\left({\mathrm{xre}}_i,{\mathrm{yre}}_j\right),\\ \left({\mathrm{xre}}_i,{\mathrm{yre}}_j\right)\in \mathrm{Are},\\ i=1,2,3\mathrm{.Math.}{i}_{\max },j=1,2,3\mathrm{.Math.}{j}_{\max }\end{array}\right\}$ $\mathrm{where}\mathrm{Are}=\left\{\left({\mathrm{xre}}_i,{\mathrm{yre}}_j\right)|\begin{array}{c}\left({\mathrm{xre}}_i,{\mathrm{yre}}_j\right)=\\ \{\begin{array}{c}\left({\mathrm{xex}}_i,{\mathrm{yex}}_j\right)-\vartheta \left(\delta x_i,\delta y_j\right),\left(i,j\right)\in \mathrm{SPex}\\ \left({\mathrm{xex}}_i,{\mathrm{yex}}_j\right),\left(i,j\right).Math.\mathrm{SPex}\end{array},\\ i=1,2,3\mathrm{.Math.}{i}_{\max },j=1,2,3\mathrm{.Math.}{j}_{\max },\\ \left({\mathrm{xex}}_i,{\mathrm{yex}}_j\right)\in \mathrm{Aex},\\ \left(\delta x_i,\delta y_j\right)\in \Delta X\end{array}\right\}$ wherein, Are is the set of the circle center coordinates of texturing points of unordered and uniform distribution after adjusting the positions of bad points in the area near the centerline; (xre.sub.i, yre.sub.j) is the circle center coordinate of a texturing point in row i and column j in the set of the circle center coordinates of texturing points of unordered and uniform distribution after adjusting the positions of bad points in the area near the centerline; ϑ is the adjustment ratio of coordinates of bad points in the area near the centerline.

7. Implementing the method for roller laser texturing processing said in claim 4, characterized in that the laser output position signal, beam energy regulation signal and deflection signal of one-dimensional beam deflection unit are obtained through the information processing module, as follows specifically: calculating the angle between the motion track of focal point and the axial direction of roller: when the one-dimensional beam deflection unit 4 is not working, that is α=0, the angle θ between the motion track of focal point and the axial direction of roller is: $\theta ={\tan }^{-1}\frac{\pi *n*d}{\upsilon }$ where n is rotating speed of the roller; v is the running speed of the laser terminal output module; determining the set K of focal point motion track sequence number and calculating the set P of the number of turns of each focal point motion track moving around the metal cylinder, $k\in K=\left\{1,2,3,\mathrm{.Math.}{k}_{\max }\right\},\mathrm{where}{k}_{\max }=\{\begin{array}{cc}\frac{\pi d}{{\sigma }_{\max }\tan \theta },& \frac{\pi d}{{\sigma }_{\max }\tan \theta }\mathrm{is}\mathrm{an}\mathrm{integer}\\ .Math.\frac{\pi d}{{\sigma }_{\max }\tan \theta }.Math.+1,& \frac{\pi d}{{\sigma }_{\max }\tan \theta }\mathrm{is}\mathrm{not}\mathrm{an}\mathrm{integer}\end{array};p\in P=\left\{1,2,3\mathrm{.Math.}{p}_{\max }\right\},\mathrm{where}{p}_{\max }=\{\begin{array}{cc}\frac{L_1}{\pi d\cot \theta },& \frac{L_1}{\pi d\cot \theta }\mathrm{is}\mathrm{an}\mathrm{integer}\\ .Math.\frac{L_1}{\pi d\cot \theta }.Math.+1,& \frac{L_1}{\pi d\cot \theta }\mathrm{is}\mathrm{not}\mathrm{an}\mathrm{integer}\end{array};$ wherein, K is the set of focal point motion track sequence number; k is the k-th focal point motion track, that is, the k-th processing process; P is the set of the number of turns of each focal point motion track moving around the metal cylinder; p is the p-th turn of focal point motion track moving around the metal cylinder; when the deflection angle α of the one-dimensional beam deflection unit 4 is α ∈ [0, η* α.sub.max], the set Λ of focal point coverage Λ.sub.k of laser terminal output module during the k-th processing process is determined, as follows specifically: $\Lambda =\left\{{\Lambda }_k|{\Lambda }_k=\left\{\left(x,y\right)|\begin{array}{c}\begin{array}{c}x\in [{\mathrm{xk}}_{\min }\left(y,p=1\right),\\ {\mathrm{xk}}_{\max }\left(y,p=1\right)).Math.\end{array}\\ \begin{array}{c}[{\mathrm{xk}}_{\min }\left(y,p=2\right),\\ {\mathrm{xk}}_{\max }\left(y,p=2\right)).Math.\end{array}\\ \begin{array}{c}[{\mathrm{xk}}_{\min }\left(y,p=3\right),\\ {\mathrm{xk}}_{\max }\left(y,p=3\right)).Math.\end{array}\\ \mathrm{.Math.}.Math.\\ \begin{array}{c}[{\mathrm{xk}}_{\min }\left(y,p=p_{\max }\right),\\ {\mathrm{xk}}_{,\max }\left(y,p=p_{\max }\right)),\end{array}\\ y\in \left[0,\pi d\right)\end{array}\right\},k=1,2,3\mathrm{.Math.}{k}_{\max }\right\},\mathrm{where}$ ${\mathrm{xk}}_{\min }\left(y,p\right)=\mathrm{xk}\left(y,p,\sigma =0\right)=\frac{\left[y-\frac{\pi d}{k_{\max }}k\right]}{\tan \theta }+\frac{\pi d}{\tan \theta }\left(p-1\right),y\in \left[0,\pi d\right),p\in P,k\in K,{\mathrm{xk}}_{\max }\left(y,p\right)=\mathrm{xk}\left(y,p,\sigma ={\sigma }_{\max }\right)=\frac{\left[y-\frac{\pi d}{k_{\max }}\left(k-1\right)\right]}{\tan \theta }+\frac{\pi d}{\tan \theta }\left(p-1\right),y\in \left[0,\pi d\right),p\in P,k\in K,$ where Λ is the set of focal point coverage of laser terminal output module during each processing process; Λ.sub.k is the focal point coverage of laser terminal output module during the k-th processing process; xk.sub.min(y,p)=xk(y, p, σ=0) is the equation of the p-th turn of the k-th focal point motion track, when the deflection angle α=0, that is, deflection offset σ=0; xk.sub.max(y, .sub.P)=xk(y, p, σ=σ.sub.max) is the equation of the p-th turn of the k-th focal point motion track, when the deflection angle α=η* α.sub.max, that is, deflection offset σ=σ.sub.max; the set Φ of the circle center coordinates of unordered and uniform texturing points in the focal point coverage of laser terminal output module during each processing process is counted, as follows specifically: $\Phi =\left\{{\Phi }_k|k=1,2,3\mathrm{.Math.}{k}_{\max }\right\},\mathrm{where}{\Phi }_k=\left\{\left(x_{\mathrm{rk}},y_{\mathrm{rk}}\right)|\begin{array}{c}\left(x_{\mathrm{rk}},y_{\mathrm{rk}}\right)=\left({\mathrm{xex}}_i,{\mathrm{yex}}_j\right),\\ \left({\mathrm{xex}}_i,{\mathrm{yex}}_j\right){\mathrm{ϵ\Lambda }}_k,\left({\mathrm{xex}}_i,{\mathrm{yex}}_j\right)\in \mathrm{Aex},\\ i=1,2,3\mathrm{.Math.}{i}_{\max },j=1,2,3\mathrm{.Math.}{j}_{\max },\\ \mathrm{rk}=1,2,3\mathrm{.Math.}\end{array}\right\},k\in K,$ wherein, Φ is the set of the circle center coordinates of unordered and uniform texturing points in the focal point coverage of laser terminal output module during each processing process; Φ.sub.k is the circle center coordinates of unordered and uniform texturing points in the focal point coverage Λ.sub.k of laser terminal output module during the k-th processing process, that is, the circle center coordinates fall into the set of the circle center coordinates of texturing points between the two trajectories xk.sub.min=xk(y, σ=0) and xk.sub.max=xk(y, σ32 σ.sub.max); (x .sub.rk, y.sub.rk) is the circle center coordinate of the rk-th unordered and uniform texturing point included during the k-th processing process; rk is the statistical sequence of unordered and uniform texturing points included in the k-th processing process; determining the set Ω.sub.k of circle center coordinates of the texturing points after sorting in the k-th processing process. (x.sub.rk, y.sub.rk) is sorted according to the processing sequence of the texturing points to obtain the set Ω.sub.k of circle center coordinates of the texturing points after sorting. The specific sorting rules are as follows: ${\Omega }_k=\left\{\left(x_{\tau k},y_{\tau k}\right)|\tau k=1,2,3\mathrm{.Math.}{\mathrm{rk}}_{\max }\right\}=\{\begin{array}{c}\left\{\begin{array}{c}\left(x_{\mathrm{rk}},{\left(y_{\mathrm{rk}}\right)}_{\min }\right),\\ \mathrm{.Math.},\\ \left(x_{\mathrm{rk}},{\left(y_{\mathrm{rk}}\right)}_{\max }\right)\end{array}|\begin{array}{c}\left(x_{\mathrm{rk}},y_{\mathrm{rk}}\right)\in {\Phi }_k,\\ \mathrm{rk}=1,2,3\mathrm{.Math.}{\mathrm{rk}}_{\max },\\ k\mathrm{is}\mathrm{odd}\end{array}\right\}\\ \left\{\begin{array}{c}\left(x_{\mathrm{rk}},{\left(y_{\mathrm{rk}}\right)}_{\max }\right),\\ \mathrm{.Math.},\\ \left(x_{\mathrm{rk}},{\left(y_{\mathrm{rk}}\right)}_{\min }\right)\end{array}|\begin{array}{c}\left(x_{\mathrm{rk}},y_{\mathrm{rk}}\right)\in {\Phi }_k,\\ \mathrm{rk}=1,2,3\mathrm{.Math.}{\mathrm{rk}}_{\max },\\ k\mathrm{is}\mathrm{even}\end{array}\right\}\end{array},k\in K$ wherein, Ω.sub.k is the set of circle center coordinates formed by sorting the circle center coordinates of unordered and uniform texturing points in the focal point coverage Λ.sub.k during the k-th processing process according to the processing sequence of the texturing points; (x.sub.τk, y.sub.τk) is the coordinate of the τk-th processing texturing point in the k-th processing process; τk is the processing sequence number of the texturing points in the k-th processing process; τk.sub.max is the maximum statistical value of the number of unordered and uniform texturing points included in the focal point coverage Λ.sub.k during the k-th processing process; (y.sub.rk).sub.max is the maximum value of y-axis coordinates of the circle center coordinates (x.sub.rk, y.sub.rk) of unordered and uniform texturing points in the focal point coverage Λ.sub.k during the k-th processing process; (y.sub.rk).sub.min is the minimum value of y-axis coordinates of the circle center coordinates (x.sub.rk, y.sub.rk) of unordered and uniform texturing points in the focal point coverage Λ.sub.k during the k-th processing process; finding the set MSP.sub.k of processing singular points in Ω.sub.k: search the set MSP.sub.k of processing singular points in Ω.sub.k according to the response frequency of the processing system. The specific searching method is as follows: ${\mathrm{MSP}}_k=\left\{{\mathrm{msp}}_{\mathrm{mk}}|\begin{array}{c}{\mathrm{msp}}_{\mathrm{mk}}=\tau k,\\ \frac{.Math.y_{\tau k}-y_{\tau k-1}.Math.}{\pi *n*d}<\frac{1}{F}\mathrm{or}\frac{.Math.y_{\tau k}-y_{\tau k-1}.Math.}{\pi *n*d}<\frac{1}{F},\\ \left(x_{\tau k},y_{\tau k}\right)\in {\Omega }_k,\\ \tau k=2,3,4\mathrm{.Math.}{\mathrm{rk}}_{\max }-1,\\ \mathrm{mk}=1,2,3\mathrm{.Math.}\end{array}\right\},k\in K,\mathrm{where}F=\frac{1}{\varrho }*\min \left(\mathrm{Maxf}{\mathrm{Las}}_{\mathrm{mor}},\mathrm{Maxf}{P}_{\mathrm{res}},\mathrm{Maxf}{\mathrm{EX}}_{\mathrm{res}},\frac{n}{R_{\mathrm{encoder}}}\right)$ wherein, MSP.sub.k is the set of the processing singular points in Ω.sub.k; msp.sub.mk is the processing sequence number of the processing singular points in the k-th processing process; F is the comprehensive response frequency of the processing system; MaxfLas.sub.mor is the maximum output frequency of output laser for processing the mor-th morphology; MaxfP.sub.res is the highest response frequency of the beam energy regulation unit; MaxfEX.sub.res is the highest response frequency of the one-dimensional beam deflection unit 5; R.sub.encoder is the resolution of the encoder 2 rotationally and coaxially mounted with the roller; is the safety factor of the response frequency of the system; estimating whether there is a processing singular point: when MSP.sub.k≠Ø, and k ∈ K, then there is a processing singular point, the set Ω.sub.k of the circle center coordinates of unordered and uniform texturing points which are arranged according to the processing sequence in the focal point coverage Λ.sub.k during the k-th processing process is adjusted according to the set MSP.sub.k of the processing singular points in Ω.sub.k; the steps of determining set Ω.sub.k of circle center coordinates of the texturing points after sorting in the k-th processing process and finding the set MSP.sub.k of processing singular points in Ω.sub.k are repeated until MSP.sub.k=Ø, While SP=Ø, there is no bad point; when MSP.sub.k=Ø, and k ∈ K, calculating the set ΓLine.sub.m of signal set of laser output position signal-the beam energy regulation signal-deflection signal of one-dimensional beam deflection unit of the laser terminal output module: $\Gamma {\mathrm{Line}}_m=\left\{\Gamma {\mathrm{Line}}_{m_k},k=1,2,3\mathrm{.Math.}{k}_{\max }\right\},m\in \left\{1,2,3\mathrm{.Math.}{m}_{\max }\right\},\mathrm{where}$ $\Gamma {\mathrm{Line}}_{m_k}=\left\{\left({\beta }_{\tau k},\psi m_{\tau k},{\xi }_{\tau k}\right)|\begin{array}{c}{\beta }_{\tau k}=2\pi \frac{y_{\tau k}}{\pi d},\\ \psi m_{\tau k}=\mathrm{rand}\left({\psi }_{\min },\varsigma *{\psi }_{\max }\right)\mathrm{or}\\ \psi m_{\tau k}={\psi }_{\min },\\ \{\begin{array}{c}{\sigma }_{\tau k}=x_{\tau k}-{\mathrm{xk}}_{\min }\left(y=y_{\tau k},p=p_{\tau k}\right)\\ p_{\tau k}=.Math.\frac{x_{\tau k}-{\mathrm{xk}}_{\min }\left(y=y_{\tau k},p=1\right)}{\pi d\cot \theta }.Math.,\\ {\sigma }_{\tau k}=f\left({\alpha }_{\tau k}\right)=f\left(\alpha \left({\xi }_{\tau k}\right)\right)\end{array}\\ \left(x_{\tau k},y_{\tau k}\right)\in {\Omega }_k,\tau k=1,2,3\mathrm{.Math.}{r}_{\max }\end{array}\right\},kϵK,m\in \left\{1,2,3\mathrm{.Math.}{m}_{\max }\right\},$ wherein, ΓLine.sub.m is the set of the signal set of laser output position signal-the beam energy regulation signal-deflection signal of one-dimensional beam deflection unit of the m-th laser terminal output module during each processing process; ΓLine.sub.m.sub.k is the signal set of laser output position signal-the beam energy regulation signal-deflection signal of one-dimensional beam deflection unit needed by the m-th laser terminal output module for unordered and uniform texturing points which are arranged according to the sequence of processing in the focal point coverage during the k-th processing process; (β.sub.τk, ψm.sub.τk, ξ.sub.τk) is the same laser output position signal, the beam energy regulation signal of the m-th laser terminal output module, and the same deflection signal of one-dimensional beam deflection unit sent to the processing system during processing of the τk-th texturing point in the k-th processing process; p.sub.τk is the number of turns for processing the rk-th texturing point during the k-th processing process; ζ is the maximum attenuation ratio constant of laser energy of the beam energy regulation unit 5.

8. Implementing the method for roller laser texturing processing said in claim 7, characterized in that the set Ω.sub.k of the circle center coordinates of unordered and uniform texturing points which are arranged according to the sequence of processing in the focal point coverage Λ.sub.k during the k-th processing process is adjusted according to the set MSP.sub.k of the processing singular points in Ω.sub.k, as follows specifically: ${\Omega }_k=\left\{\left(x_{\tau k},y_{\tau k}\right)|\begin{array}{c}\left(x_{\tau k},y_{\tau k}\right)=\left({\mathrm{xre}}_{\tau k},{\mathrm{yre}}_{\tau k}\right),\\ ({\mathrm{xre}}_{\tau k},{\mathrm{yre}}_{\tau k}\in \Omega {\mathrm{re}}_k\\ \tau k=2,3,4\mathrm{.Math.}{\mathrm{rk}}_{\max }\end{array}\right\},k\in K$ $\mathrm{where}\Omega {\mathrm{re}}_k=\left\{\left({\mathrm{xre}}_{\tau k},{\mathrm{yre}}_{\tau k}\right)|\begin{array}{c}\left({\mathrm{xre}}_{\tau k},{\mathrm{yre}}_{\tau k}\right)\\ \{\begin{array}{c}\{\begin{array}{c}\left(x_{\tau k},y_{\tau k}-{\Delta }_{\tau k}\right),k\mathrm{is}\mathrm{odd}\\ \left(x_{\tau k},y_{\tau k}+{\Delta }_{\tau k}\right),k\mathrm{is}\mathrm{even}\end{array},\\ \tau k\in {\mathrm{MSP}}_k\\ \left(x_{\tau k},y_{\tau k}\right),\tau k.Math.{\mathrm{MSP}}_k\end{array},\\ \left(x_{\tau k},y_{\tau k}\right)\in {\Omega }_k,\\ {\Delta }_{\tau k}=\gamma *.Math.y_{\tau k}-y_{\tau k-1}.Math.,\\ \tau k=2,3,4\mathrm{.Math.}{\mathrm{rk}}_{\max }\end{array}\right\},k\in K$ wherein, Ωre.sub.k is the adjusted set of the circle center coordinates of unordered and uniform texturing points which are arranged according to the sequence of processing in the focal point coverage Λ.sub.k during the k-th processing process; (xre.sub.τk, yre.sub.τk) is the adjusted circle center coordinate of the τk-th texturing point processed during the k-th processing process; Δ.sub.τk is the adjustment amount of y-axis of the circle center coordinate of the τk-th texturing point processed during the k-th processing process; γ is the adjustment ratio of the adjustment amount of y-axis coordinate.

9. Implementing the method for roller laser texturing processing said in claim 5, characterized in that the method for determining the morphologic distribution dot spacing a and the morphologic distribution line spacing b is as follows: determining the type of morphology of laser texturing hard points; according to the initial value ρ0 of area occupancy, calculating the initial value α0 of the morphologic dot spacing and the initial value b0 of morphologic line spacing, as follows specifically: $a0=b0=\sqrt{\frac{{\pi \left(D_{\mathrm{mor}}/2\right)}^2}{\rho 0}}$ wherein, ρ0 is the preset initial value of the morphological area occupancy; α0 is the initial value of the morphologic distribution dot spacing, which is the initial value of the distance between two texturing hard points in the x direction; b0 is the initial value of the morphologic distribution line spacing, which is the initial value of the distance between two texturing hard points in the y direction; D.sub.mor is the diameter of the mor-th morphology; correcting morphologic distribution dot spacing, morphologic distribution line spacing and area occupancy, as follows specifically: $a=b=\frac{\pi d}{.Math.\pi d/b0.Math.},\rho =\frac{{\pi \left(D_{\mathrm{mor}}/2\right)}^2}{a*b},$ wherein, ρ is the area occupancy of morphology; α is the morphologic distribution dot spacing, which is the distance between two texturing hard points in the x direction; b is the morphologic distribution line spacing, which is the distance between two texturing hard points in they direction.

10. The processing equipment for implementing the roller laser texturing processing method in claim 1, characterized in that it comprises a computer, a light source module and a laser terminal output module; said computer comprises a design module for end-to-end, unordered and uniform lattice distribution and a signal processing module; according to the roller processing unit parameters and morphological parameters, the distribution scheme of end-to-end, unordered and uniform texturing lattice is obtained by the design module for end-to-end, unordered and uniform lattice distribution; according to said scheme of end-to-end, unordered and uniform texturing lattice distribution, the machine tool parameters and laser parameters, the laser output position signal, beam energy regulation signal and deflection signal of one-dimensional beam deflection unit are obtained through the information processing module; said laser output position signal is used to control the light source module to emit the laser; said beam energy regulation signal and deflection signal of one-dimensional beam deflection unit are input into the laser terminal output module, respectively, to generate an unordered laser lattice, each laser terminal output module is used to process a roller processing unit; each of the laser terminal output module reciprocates axially in the corresponding roller processing unit area, the initial line of said reciprocating motion is $x=-\frac{\pi d}{k_{\max }}\cot \theta$ and the termination line is x=L.sub.1.

Description

DESCRIPTION OF DRAWINGS

[0087] FIG. 1 is a diagram of the installation position of the laser terminal output module mentioned in the present invention.

[0088] FIG. 2 is a diagram of the control schematic of the equipment for roller laser texturing processing mentioned in the present invention.

[0089] FIG. 3 is a flow diagram of the design method of the scheme of unordered and uniform laser texturing lattice mentioned in the present invention.

[0090] FIG. 4 is a flow diagram of the information processing module mentioned in the present invention.

[0091] FIG. 5 is a schematic diagram of division of the processing area mentioned in the present invention.

[0092] FIG. 6 is a diagram of the texturing morphologies mentioned in the present invention.

[0093] FIG. 7 is a diagram of the scheme of uniform lattice mentioned in the present invention.

[0094] FIG. 8 is a diagram of the scheme of random displacement for the scheme of uniform lattice mentioned in the present invention.

[0095] FIG. 9 is a diagram of the scheme of bad points processing for the scheme of unordered lattice mentioned in the present invention.

[0096] FIG. 10 is a schematic diagram of the lattice distribution of each processing unit is exchanged from left to right with reference to the center line.

[0097] FIG. 11 is a diagram of the focal point coverage during the k-th processing process mentioned in the present invention.

[0098] FIG. 12 is a diagram of the processing sequence number of the texturing points in the focal point coverage during the k-th (k is odd) processing process mentioned in the present invention.

[0099] FIG. 13 is a diagram of the processing sequence number of the texturing points in the focal point coverage during the k-th (k is even) processing process mentioned in the present invention.

[0100] FIG. 14 is a diagram of the judgment of processing singular points during the k-th processing process mentioned in the present invention.

[0101] FIG. 15 is a diagram of the processing of processing singular points during the k-th processing process mentioned in the present invention.

[0102] As shown in the figure:

[0103] 1-metal cylinder to be processed; 2-coaxial encode; 3-the device for laser focusing; 4-one-dimensional beam deflection unit; 5-beam energy regulating unit; 6-beam back-turning unit; 7-laser terminal output module mounting base

Embodiments

[0104] The present invention will be further explained below in combination with the attached drawings and specific embodiments, but the scope of protection of the invention is not limited to this. As shown in FIG. 1, the equipment for roller laser texturing processing described in the present invention, comprising a computer, a light source module and a laser terminal output module. The computer comprises the design module for end-to-end, unordered and uniform lattice distribution and signal processing module; according to the roller processing unit parameters and morphological parameters, the scheme of end-to-end, unordered and uniform texturing lattice distribution is output by the design module for end-to-end, unordered and uniform lattice distribution; according to the scheme of end-to-end, unordered and uniform texturing lattice distribution, the machine tool parameters and laser parameters, the laser output position signal, beam energy regulation signal and deflection signal of one-dimensional beam deflection unit are obtained through the information processing module. The laser output position signal is used to control the light source module to emit the laser; the beam energy regulation signal and deflection signal of one-dimensional beam deflection unit are input into the laser terminal output module, respectively, to generate an unordered laser lattice, and each laser terminal output module is used to process a roller processing unit. Each of the laser terminal output module reciprocates axially in the corresponding roller processing unit area.

[0105] The laser terminal output module includes beam back-turning unit 6, beam energy regulation unit 5 and one-dimensional beam deflection unit 4; the incident laser from said light source module passes successively through the beam back-turning unit 6, beam energy regulation unit 5, one-dimensional beam deflection unit 4 and laser focusing device 3, and then into the roller processing unit; said beam back-turning unit 6 is used to split the incident laser from the light source module into a reflected laser perpendicular to the axis direction of the roller and a transmitted laser parallel to the axis direction of the roller; said reflected laser enters into the beam energy regulating unit 5, and said transmitted laser enters into the next laser terminal output module; said beam energy regulating unit 5 is used to change the energy of said reflected laser; said one-dimensional beam deflection unit 4 is used to offset the angle of said reflected laser. Said laser focusing device 3 is used to focus the offset reflected laser onto the metal cylinder 1 to be processed. Since the laser focusing device 3 is an existing device, the structure and principle are not described here. Said laser terminal output module is mounted on the laser terminal output module mounting base 7, and the said laser terminal output module mounting base 7 is axially reciprocated along the roller processing unit region.

[0106] The said laser terminal output module is numbered in the sequence from near to far with the laser source, which is marked as: Line.sub.1, Line.sub.2. . . Line.sub.m. . . Line.sub.m.sub.max, processing the first unit, the second unit. . . the m-th unit until the m.sub.max-th unit respectively.

[0107] Said beam back-turning unit 6 divides the incident laser into a number of output lasers with equal energy using a number of semi-reflective lenses, which has the following characteristics: based on the different coating properties of each semi-reflective lens, the beam back-turning unit 6 can split the incident laser energy into reflected laser and transmitted laser with specific energy. The beam back-turning unit 6 can split the incident laser which is parallel to the axis direction of the roller into a reflected laser perpendicular to the axis direction of the roller and a transmitted laser parallel to the axis direction of the roller, wherein the energy ratio split by the beam back-turning unit 6 in the Line.sub.m-th laser terminal output module is:

[00023]$\frac{P_m}{P_{m^{-}}}=1:\left(m_{\max }-m\right);$

With this method, the energy of input laser in each laser terminal output module can be made to be consistent, that is

[00024]$P_m=P_{\mathrm{output}}=\frac{1}{m_{\max }}{P}_{\mathrm{input}},m=1,2,3\mathrm{.Math.}{m}_{\max };$

[0108] where P.sub.m is the power of reflected laser split by the beam back-turning unit in the Line.sub.m-th laser terminal output module; P.sub.m—is the power of transmitted laser split by the beam back-turning unit in the Line.sub.m-th laser terminal output module; P.sub.input is the power of laser source output by the laser source module; P.sub.output is the laser power input by the laser terminal output module.

[0109] Said beam energy regulating unit 5 can change the energy of the laser through the input electric signal of the driving power supply of the beam energy regulating unit, and has the following characteristics: it attenuates the beam energy at a fixed value based on the input electrical signal, that is P.sub.focus=(1-Damp(ψ)P.sub.output. The electrical signal ip can change continuously and has a fixed range, that is ψ ∈ [ψ.sub.min, ψ.sub.max], and the corresponding energy attenuation ratio Damp(ψ) varies from 0 to 100%.

[0110] wherein, ψ is the input electric signal of the driving power supply of the beam energy regulating unit 5; ψ.sub.min is the minimum input electrical signal; ψ.sub.max is the maximum input electrical signal; Damp(ψ) is the laser energy attenuation ratio; P.sub.focus is the laser power output by said beam energy regulating unit;

[0111] Said one-dimensional beam deflection unit 4 has the following characteristics: it makes the beam deflect in one-dimension at a fixed angle α according to the input electrical signal ξ, that is α=α(ξ); makes the beam deflection angle α in one-dimensional has a fixed range, and α.sub.max is an inherent property of the one-dimensional beam deflection unit 4; has a fixed highest response frequency Maxf.sub.res, Maxf.sub.res≥10 Khz and makes the beam deflect in one-dimension at a fixed angle α, then the beam passes through the focus lens and acts on the area to be processed, so as to make focal point offset a determined distance σ relative to the optical axis,

σ=f(α)=f(α(ξ) )

σ.sub.min=f(α=α.sub.min=0)=0

σ.sub.max=f(α=η*α.sub.max)

where α.sub.max=0.1˜1 rad; α ∈ [0, η* 60 .sub.max]; η ∈ [50%, 80%];

[0112] wherein, L.sub.2 is the distance between said one-dimensional beam deflection unit 4 and the surface of the workpiece;f is the focal length when said one-dimensional beam deflection unit 4 does not deflect; α is the deflection angle of beam caused by the one-dimensional beam deflecting unit 4, that is α=α(ξ); α.sub.min is the minimum deflection angle of beam caused by the one-dimensional beam deflecting unit 4; α.sub.max is the maximum deflection angle of beam caused by the one-dimensional beam deflecting unit 4; η is the safety service factor of one-dimensional beam deflection unit 4; σ is the offset of focal position; σ.sub.min is the minimum offset of focal position; σ.sub.max is the maximum offset of focal position. Maxf.sub.res is the highest response frequency of one-dimensional beam deflection unit.

[0113] As shown in FIG. 2, FIG. 3 and FIG. 4, the method for roller laser texturing processing described in the present invention includes the following steps:

[0114] S01 dividing the processing zone: the roller surface processing zone is evenly divided into several roller processing units, which is as shows specifically in FIG. 5:

[0115] Determining the roller surface processing zone; said roller processing zone being a square area with length L.sub.01 and width πd, wherein, L.sub.01=5%-100%L.sub.0, L.sub.0-01 is the distance from the end face of roller, L.sub.0-01=0˜90%L.sub.0; L.sub.0 is the developed length of the roller surface, and d is the diameter of the roller;

[0116] The processing zone of roller is evenly divided into m roller processing units, and the length of any roller processing unit is L.sub.1,

[00025]$L_1=\frac{1}{m_{\max }}{L}_{01};$

the width of any roller processing unit is πd; wherein, m ∈ {1,2,3. . . m.sub.max}=1˜30.

[0117] S02 Determining the scheme of distribution: according to the mentioned roller processing unit parameters and morphological parameters, the distribution scheme of end-to-end, unordered and uniformly distributed texturing lattice is obtained by the design method of end-to-end, unordered and uniformly distributed lattice, which is as follows specifically:

[0118] As shown in FIG. 6, setting the texturing hard points as texturing morphology which is produced by laser melting. It can be divided into spherical crown texturing point, Mexican cap-like texturing point and crater-like texturing point according to the cross section of the morphology. The specific morphological parameters are as follows:

[00026]$\mathrm{Morphology}=\left\{B_{\mathrm{mor}}.Math.\begin{array}{c}{B}_{\mathrm{mor}}=\left(D_{\mathrm{mor}},{\mathrm{Depth}}_{\mathrm{mor}},H_{\mathrm{mor}}\right)\\ \mathrm{mor}=1,2,3\end{array},\right\}$$\mathrm{where}$$B_1=\left(30\text{∼}200,0\text{∼}5,3\text{∼}30\right)\mu m$$B_2=\left(30\text{~}300,1\text{~}15,3\text{∼}30\right)\mu m$$B_3=\left(30\text{∼}300,1\text{∼}30,1\text{∼}10\right)\mu m$

[0119] The output laser parameters used in the texturing hard points processing include laser pulse width, laser power, highest laser output frequency and auxiliary gas, which are as follows:

[00027]$\mathrm{Laer}=\left\{{\mathrm{laser}}_{\mathrm{mor}}|{\mathrm{laser}}_{\mathrm{mor}}=\begin{array}{c}\left(\begin{array}{c}{\mathrm{PluseWidth}}_{\mathrm{mor}},P_{{\mathrm{focus}}_{\mathrm{mor}}},\\ \mathrm{Maxf}{\mathrm{Las}}_{\mathrm{mor}},{\mathrm{Gas}}_{\mathrm{mor}}\end{array}\right)\\ \mathrm{mor}=1,2,3\end{array},\right\}$${\mathrm{laser}}_1=\left(\begin{array}{cc}1\mu s~100\mathrm{ms},& 10~200W\\ 50\mathrm{Hz}~20\mathrm{KHz},& N_2\mathrm{or}{\mathrm{Ar}}_2\mathrm{or}\mathrm{is}\mathrm{high}\mathrm{pressure}\mathrm{air}\end{array}\right)$${\mathrm{laser}}_2=\left(\begin{array}{cc}150\mu s~100\mathrm{ms},& 10~200W,\\ 50\mathrm{Hz}~10\mathrm{KHz},& N_2\mathrm{or}{\mathrm{Ar}}_2\mathrm{or}\mathrm{is}\mathrm{high}\mathrm{pressure}\mathrm{air}\end{array}\right)$${\mathrm{laser}}_3=\left(\begin{array}{cc}300\mu s~100\mathrm{ms},& 10~200W,\\ 50\mathrm{Hz}~5\mathrm{KHz},& N_2\mathrm{or}{\mathrm{Ar}}_2\mathrm{or}\mathrm{is}\mathrm{high}\mathrm{pressure}\mathrm{air}\end{array}\right)$

where Morphology is the set of morphological parameters;B.sub.mor is the morphological parameter of the mor-th morphology; D.sub.mor is the diameter of the mor-th morphology; Depth.sub.mor is the depth of the mor-th morphology; H.sub.more is the height of the mor-th morphology; mor is the sequence of the morphology, mor=1,2,3 represents crater-like texturing point, spherical crown texturing point and Mexican cap-like texturing point which are produced by laser melting, respectively. Laser is the set of laser processing parameters of morphology; Laser.sub.mor is the laser processing parameter of the mor-th morphology; PluseWidth.sub.more is the laser processing pulse width of the mor-th morphology; P.sub.focus.sub.mor is the laser processing power of the mor-th morphology; Maxf Las.sub.mor is the highest laser output frequency of the mor-th morphology; Gas.sub.mor is the type of auxiliary gas for laser processing of the mor-th morphology.

[0120] Step 1-1: Establishing the Cartesian coordinate system and expanding the area of the unit to be processed along the axis direction to form a square surface with length and width of L.sub.1 and πd, respectively. The initial texturing point is taken as the coordinate origin, the axial direction is the x-axis, and the circumference direction is the y-axis. According to the distribution of morphology, the circle center set A.sub.0 of texturing points of uniform lattice distribution is established, and the detailed steps are as follows, step 1-1-S1 to step 1-1-S4:

[0121] Step 1-1-S1: Determining the type of morphology of laser texturing hard points and the value of mor.

[0122] Step 1-1-S2: According to the initial value ρ0 of area occupancy, calculating the initial value α0 of the morphologic dot spacing and the initial value b0 of morphologic line spacing, as follows specifically:

[00028]$a0=b0=\sqrt{\frac{{\pi \left(D_{\mathrm{mor}}/2\right)}^2}{\rho 0}},$

[0123] wherein, ρ0 is the preset initial value of the morphological area occupancy, ρ0=50% in general; α0 is the initial value of the morphologic distribution dot spacing, which is the initial value of the distance between two texturing hard points in the x direction; b0 is the initial value of the morphologic distribution line spacing, which is the initial value of the distance between two texturing hard points in they direction; D.sub.mor is the diameter of the mor-th morphology.

[0124] Step 1-1-S3: Correcting morphologic distribution dot spacing, morphologic distribution line spacing and area occupancy, as follows specifically:

[00029]$a=b=\frac{\pi d}{.Math.\pi d/b0.Math.},\rho =\frac{{\pi \left(D_{\mathrm{mor}}/2\right)}^2}{a*b},$

[0125] wherein, ρ is the area occupancy of morphology; a is the morphologic distribution dot spacing, which is the distance between two texturing hard points in the x direction; b is the morphologic distribution line spacing, which is the distance between two texturing hard points in the y direction.

[0126] Step 1-1-S4: As shown in FIG. 7, according to morphologic distribution dot spacing, morphologic distribution line spacing, establishing the circle center set A.sub.0 of texturing points of uniform lattice distribution, which is as follows specifically:

[0127] wherein, A.sub.0 is the set of circle center coordinates of texturing points of uniform lattice distribution; (x.sub.0i, y.sub.0i) is the circle center coordinate of texturing point of uniform lattice distribution in row i and column j; i represents the row serial number; i.sub.max is the maximum row serial number; i.sub.max=πd/b; j represents the column serial number; j.sub.max=[L.sub.1/α]+1; j.sub.max is the maximum column serial number; α is the morphologic distribution dot spacing, which is the distance between two texturing hard points in the x direction; b is morphologic distribution line spacing, which is the distance between two texturing hard points in they direction;

[0128] Step 1-2: As shown in FIG. 8, establishing the set ΔX of random displacement vectors for each texturing point in uniform lattice distribution, which is as follows specifically:

[00030]$\Delta X=\left\{\left(\delta x_i\delta y_j\right)|\begin{array}{c}\delta x_i=\mathrm{rand}\left(-1,1\right)*{\mathrm{.Math.}}_b,\\ \delta y_j=\mathrm{rand}\left(-1,1\right)*{\mathrm{.Math.}}_a,\\ i=1,2,3\mathrm{.Math.}{i}_{\max },j=1,2,3\mathrm{.Math.}{j}_{\max }\end{array}\right\}$

[0129] wherein, ΔX is the set of random displacement vectors for each texturing point in uniform lattice distribution; (δx.sub.i, δy.sub.j) is the random displacement vector of the circle center coordinate(x.sub.0i, y.sub.0j) of the texturing points of uniform lattice distribution in row i and column j in the uniform lattice distribution; ε.sub.α is the constant of column offset, ε.sub.a ∈ (0, 2α] in general; ε.sub.b is the constant of row offset, ε.sub.b ∈ (0, 2b] in general, and ε.sub.a=ε.sub.b;

[0130] Step 1-3: Calculating the circle center set A of texturing points of unordered and uniform distribution by adding the set A.sub.0 of circle center coordinates of texturing points of uniform lattice distribution to the set ΔX of random displacement vectors for each texturing point in uniform lattice distribution, as follows:

[00031]$A=A_0+\Delta X=\left\{\left(x_i,y_j\right)|\begin{array}{c}\left(x_i,y_j\right)=\left(x_{0i},y_{0j}\right)+\left(\delta x_i,\delta y_j\right),\\ i=1,2,3\mathrm{.Math.}{i}_{\max },j=1,2,3\mathrm{.Math.}{j}_{\max }\end{array}\right\}$

wherein, A is the circle center set of texturing points of unordered and uniform distribution; (x.sub.i, y.sub.j) is the circle center coordinates of texturing points of unordered and uniform distribution;

[0131] Step 1-4: Finding the set SP of row and column sequences of the bad points of unordered and uniform distribution according to the tolerance to overlap of texturing points, as follows specifically:

[00032]$\mathrm{SP}=\left\{\left(u_q,w_q\right)|\begin{array}{c}\left(u_q,w_q\right)=\left(i,j\right),\\ .Math.A\left(i,j\right)-A\left(i+1,j\right).Math.<\zeta *D\mathrm{or}\\ .Math.A\left(i,j\right)-A\left(i,j+1\right).Math.<\zeta *D\mathrm{or}\\ .Math.A\left(i,j\right)-A\left(i+1,j+1\right).Math.<\zeta *D,\\ i=2,3,4\mathrm{.Math.}{i}_{\max }-1,\\ j=2,3,4\mathrm{.Math.}{j}_{\max }-1,\\ q=1,2,3\mathrm{.Math.}\end{array}\right\}$

[0132] wherein, SP is the set of row and column sequences of the bad points of unordered and uniform distribution; A(i, j) is the circle center coordinate of texturing points in row i and column j in the set of the center coordinates of texturing points of unordered and uniform distribution in row i and column j; (u.sub.q, w.sub.q) is the coordinate row and column sequences of the q-th bad point; q is the sequence number of bad point; ζ is an overlap tolerance constant of texturing points of unordered and uniform distribution; ζ ∈ [0.5,1.5] in general;

[0133] Step 1-5: Estimating whether there is a bad point and deciding the next step, so as to obtain the circle center set of texturing points of unordered and uniform distribution, as follows:

[0134] There are bad points when SP≠, then it is calculated as follows from step 1-5-S1 to step 1-5-S2:

[0135] Step 1-5-S1: the random displacement vector set ΔX is adjusted according to the bad points set SP of unordered and uniform distribution, as follows specifically in the FIG. 9:

[00033]$\Delta X=\left\{\left(\delta x_i,\delta y_j\right)|\begin{array}{c}\left(\delta x_i,\delta y_j\right)=\left(\delta {\mathrm{xre}}_i,\delta {\mathrm{yre}}_j\right),\\ \left(\delta {\mathrm{xre}}_i,\delta {\mathrm{yre}}_j\right)\in \Delta \mathrm{Xre},\\ i=1,2,3\mathrm{.Math.}{i}_{\max },j=1,2,3\mathrm{.Math.}{j}_{\max }\end{array}\right\}$$\mathrm{where}\Delta \mathrm{Xre}=\left\{\left(\delta {\mathrm{xre}}_i,\delta {\mathrm{yre}}_j\right)|\begin{array}{c}\left(\delta {\mathrm{xre}}_i,\delta {\mathrm{yre}}_j\right)=\{\begin{array}{cc}\lambda (\delta x_i,\delta y_j,& \left(i,j\right)\in \mathrm{SP}\\ \left(\delta x_i,\delta y_j\right),& \left(i,j\right).Math.\mathrm{SP}\end{array},\\ i=1,2,3\mathrm{.Math.}{i}_{\max },j=1,2,3\mathrm{.Math.}{j}_{\max },\\ \left(\delta x_i,\delta y_j\right)\in \Delta X\end{array}\right\}$

[0136] wherein, ΔXre is the adjusted set of random displacement vectors; (δxre.sub.i, δyre.sub.j) is the adjusted random displacement vector; λ is the adjustment ratio of random displacement vector for a bad point;, λ ∈ (0,1) in general;

[0137] Step 1-5-S2: Repeat step 1-3 to step 1-4 until SP=Ø;

[0138] While SP=Ø, there are no bad points, then do step 1-6.

[0139] Step 1-6: the circle center set A of texturing points of unordered and uniform distribution is subjected to left-right exchange with reference to the axial center line, so that the lap joint of the processing areas of a number of laser terminal output modules can be achieved, which is as follows specifically in the FIG. 10:

[00034]$\mathrm{Aex}=\left\{\left({\mathrm{xex}}_i,{\mathrm{yex}}_j\right)|\begin{array}{c}\left({\mathrm{xex}}_i,{\mathrm{yex}}_j\right)\{\begin{array}{cc}\left(x_i+\frac{1}{2}{L}_1{y}_j\right),& x_i<\frac{1}{2}{L}_1\\ \left(x_i-\frac{1}{2}{L}_1{y}_j\right),& x_i\ge \frac{1}{2}{L}_1\end{array},\\ \left(x_i,y_j\right)\in A,\\ i=1,2,3\mathrm{.Math.}{i}_{\max },j=1,2,3\mathrm{.Math.}{j}_{\max }\end{array}\right\}$

[0140] wherein, Aex is the circle center set of texturing points of unordered and uniform distribution which is obtained through left-right exchange of the circle center set A of texturing points of unordered and uniform distribution with reference to the axial center line; (xex.sub.i, yex.sub.j) refers to the circle center coordinates of texturing points in row i and column j after left-right exchange;

[0141] Step 1-7: In the area near the center line after the process of left-right exchange, find the set SPex of row and column sequences of the bad points of unordered and uniform distribution according to the tolerance to overlap of texturing points, as follows specifically:

[00035]$\mathrm{SPex}=\left\{\left({\mathrm{uex}}_{\mathrm{qex}},{\mathrm{wex}}_{\mathrm{qex}}\right)|\begin{array}{c}\left({\mathrm{uex}}_{\mathrm{qex}},{\mathrm{wex}}_{\mathrm{qex}}\right)=\left(i,j\right),\\ .Math.\mathrm{Aex}\left(i,j\right)-\mathrm{Aex}\left(i+1,j\right).Math.<\zeta *D\mathrm{or}\\ .Math.\mathrm{Aex}\left(i,j\right)-\mathrm{Aex}\left(i,j+1\right).Math.<\zeta *D\mathrm{or}\\ .Math.\mathrm{Aex}\left(i,j\right)-\mathrm{Aex}\left(i+1,j+1\right).Math.<\zeta *D,\\ \mathrm{Aex}\left(i,j\right)\in \mathrm{Center},\\ i=1,2,3\mathrm{.Math.}{i}_{\max },\\ j=1,2,3\mathrm{.Math.}{j}_{\max },\\ \mathrm{qex}=1,2,3\mathrm{.Math.}\end{array}\right\}$

[0142] wherein, SPex is the set of row and column sequences of the bad points of unordered and uniform distribution found in the area near the center line after the process of left-right exchange according to the tolerance to overlap of texturing points; (uex.sub.qex, wex.sub.qex) is the row and column sequences of coordinate of the qex-th bad point; qex is the sequence number of bad point; Aex(i,j) is the circle center coordinates of texturing point in row i and column j in the set of the circle center coordinates of texturing points of unordered and uniform distribution after exchange; Center is the area near the center line after the process of left-right exchange:

[00036]$\mathrm{Center}=\left\{\left(x,y\right)|x\in \left[\left(1-\frac{\varpi }{2}\right)\frac{L_1}{2},\left(1+\frac{\varpi }{2}\right)\frac{L_1}{2}\right],y\in \left[0,\pi d\right]\right\}$

[0143] where ω is the proportion of the area near the input center line, ω=1% ∈ (1%, 50%) in general;

[0144] Step 1-8: Estimating whether there is a bad point in the area near the center line and deciding the next step, so as to finally obtain the circle center set of texturing points of unordered and uniform distribution, as follows:

[0145] There are bad points when SPex≠Ø, then it is calculated as follows from step 1-8-S1 to step 1-8-S2:

[0146] Step 1-8-S1: The position of bad points in the area near the centerline is adjusted according to the bad points set SPex of unordered and uniform distribution in the area near the centerline, which is as follows specifically:

[00037]$\mathrm{Aex}=\left\{\left({\mathrm{xex}}_i,{\mathrm{yex}}_j\right)|\begin{array}{c}\left({\mathrm{xex}}_i,{\mathrm{yex}}_j\right)=\left({\mathrm{xre}}_i,{\mathrm{yre}}_j\right),\\ \left({\mathrm{xre}}_i,{\mathrm{yre}}_j\right)\in \mathrm{Are},\\ i=1,2,3\mathrm{.Math.}{i}_{\max },j=1,2,3\mathrm{.Math.}{j}_{\max },\end{array}\right\}$$\mathrm{where}\mathrm{Are}=\left\{\left({\mathrm{xre}}_i,{\mathrm{yre}}_j\right)|\begin{array}{c}\left({\mathrm{xre}}_i,{\mathrm{yre}}_j\right)=\\ \{\begin{array}{cc}\left({\mathrm{xex}}_i,{\mathrm{yex}}_j\right)-\vartheta \left(\delta x_i,\delta y_j\right),& \left(i,j\right)\in \mathrm{SPex}\\ \left({\mathrm{xex}}_i,{\mathrm{yex}}_j\right),& \left(i,j\right).Math.\mathrm{SPex}\end{array},\\ ,\\ i=1,2,3\mathrm{.Math.}{i}_{\max },j=1,2,3\mathrm{.Math.}{j}_{\max },\\ \left({\mathrm{xex}}_i,{\mathrm{yex}}_j\right)\in \mathrm{Aex},\\ \left(\delta x_i,\delta y_j\right)\in \Delta X\end{array}\right\}$