SMOKE AND DUST TREATMENT APPARATUS FOR WELDING

Abstract

A smoke and dust treatment apparatus for welding, said apparatus comprising a polishing and dust extraction module and a smoke and dust purification module. The polishing and dust extraction module comprises a double-layer dust extraction cover (3), a protective cover (2), an industrial brush (4), a first air guide portion, a second air guide portion (24) and a drive motor (22), the drive motor (22) driving the industrial brush (4) to rotate at high speed to perform polishing. During welding and polishing, a mechanical arm (6) drives the double-layer dust extraction cover (3), and a suction hole (20) of the double-layer dust extraction cover (3) and a suction guide hole (19) on the industrial brush (4) simultaneously take in toxic gas and debris such as iron filings.

Claims

1. A smoke and dust treatment apparatus for welding is characterized in that: comprises a polishing and dust extraction module and a smoke and dust purification module, wherein the smoke and dust purification module is disposed on one side of the polishing and dust extraction module and is communicated with the polishing and dust extraction module through an air guide hose; the polishing and dust extraction module comprises a double-layer dust extraction cover, a protective cover, an industrial brush, first air guide portions, a second air guide portion and a drive motor, wherein the protective cover, the first air guide portions, the second air guide portion and the double-layer dust extraction cover are sequentially connected and are internally communicated, the industrial brush is disposed in the protective cover and can be driven by the drive motor, which is disposed over the protective cover, to rotate to polish a workpiece; wherein, a double-layer dust extraction cover comprises an outer layer, an inner layer and a gap layer defined by the outer layer and the inner layer, and has a necked end and an expanded end, and an end, away from the protective cover, of the second air guide portion is connected to the necked end of the inner layer of the double-layer air extraction cover; wherein, the first air guide portions are multiple air guide iron columns which are distributed at the top of the protective cover in a circumferential direction, a rotary shaft supporting hole is formed in the center of an upper surface of the protective cover, the drive motor is fixedly mounted on the upper surface of the protective cover and is connected to the industrial brush through a rotary shaft penetrating through the rotary shaft supporting hole; the smoke and dust purification module comprises a residual collection chamber, a smoke purification chamber, an exhaust fan and a gas discharge passage, wherein the smoke purification chamber is communicated with the residual collection chamber through an air guide iron pipe, the exhaust fan is disposed below the smoke purification chamber and is used to provide a negative pressure for delivering smoke and dust into the smoke and dust purification module from the polishing and dust extraction module, and the gas discharge passage is an L-shaped passage and is used to exhaust smoke purified by the smoke purification chamber to the atmosphere; the residue collection chamber is a cavity formed with an air inlet and an air outlet, wherein the air outlet is located close to the bottom of the cavity, and a metal filter screen, a magnetic residue box and an electromagnetic chuck are disposed in the cavity; the metal filter screen is obliquely disposed below the air inlet, a periphery of the metal filter screen is fixedly connected to a side wall of the residue collection chamber, the electromagnetic chuck is fixedly disposed at the bottom of the residual collection chamber, and the magnetic residue box is disposed on the electromagnetic chuck; the smoke purification chamber is sequentially provided with an inlet, a physical filter layer and an outlet, wherein the outlet is formed in a position, corresponding to the exhaust fan, of the bottom of the smoke purification chamber; one end of the air guide iron pipe is connected to the air outlet of the residue collection chamber, and the other end of the air guide iron pipe is connected to the inlet of the smoke purification chamber; one end of the air guide hose is connected to the necked end of the outer layer of the double-layer dust extraction cover and is communicated with the gap layer of the double-layer dust extraction cover, and the other end of the air guide hose is connected to the air inlet of the residue collection chamber; the smoke and dust treatment apparatus for welding further comprises a control chamber, wherein the control chamber is in signal connection with a mechanical arm, the exhaust fan and the drive motor and is used to control the mechanical arm, the exhaust fan and the drive motor to work; before welding, the mechanical arm 6 moves to drive a welding gun head 1 to enter the rigid sleeve 21 and to stretch out of the industrial brush 4; When the mechanical arm 6 drives the double-layer dust extraction cover 3 to move, the exhaust fan 14 is slowly started; when the mechanical arm 6 drives the double-layer dust extraction cover 3 to reach an initial welding point, the mechanical arm 6 stops moving for 1-2 seconds, at this moment, the exhaust fan 14 starts to work normally, an air flow passes through suction holes 20 in the inner side of the double-layer dust extraction cover 3 and suction guide holes 19 in the industrial brush 4, and air starts to be taken in; when welding is started, the welding gun head 1 moves to perform welding; the double-layer dust extraction cover 3 moves along with the welding gun head 1 to collect smoke and dust and to shield sparks; after welding is ended, a clamp 5 releases the welding gun head 1, which is then moves to the inner side of the double-layer dust extraction cover 3; then, the clamp 5 clamps the welding gun head 1 again; after that, the mechanical arm 6 drives the industrial brush 4 to move to the initial welding point again; the mechanical arm 6 stops moving for 1-2 seconds, the industrial brush 4 starts to rotate at a high speed, and the exhaust fan 14 starts to work, and afterwards, polishing is carried out along a welding path; after polishing, the mechanical arm 6 returns to the original position; when the exhaust fan 14 operates at a high speed, a negative-pressure region is formed near the suction holes of the double-layer dust extraction cover 3 and the suction guide holes of the industrial brush 4, and smoke and dust generated in the welding process enter the smoke purification module through the air guide hose 7 under the effect of a negative pressure; When polishing is needed, the mechanical arm 6 drives the double-layer dust extraction cover 3 to move, the drive motor 22 drives the industrial brush 4 to rotate at a high speed, the wire brush 18 performs polishing to remove dust and rust, the exhaust fan 14 rotates at a high speed to provide a strong suction force, and residues such as iron filings generated in the polishing process are extracted via the suction guide holes 19 in the industrial brush 4.

2. The smoke and dust treatment apparatus for welding according to claim 1, characterized in that: the smoke and dust treatment apparatus for welding further comprises a welding mechanism, wherein the welding mechanism comprises a welding gun head and a wire feeding mechanism connected to the welding gun head, the welding gun head movably penetrates through the double-layer dust extraction cover through a rigid sleeve, the rigid sleeve is fixedly connected to the inner layer of the double-layer dust extraction cover, a clamp is disposed on the rigid sleeve and is used to fix the welding gun head on the rigid sleeve, and the wire feeding mechanism is fixed on a mechanical arm 6 of a welding robot.

3. The smoke and dust treatment apparatus for welding according to claim 1, characterized in that: the industrial brush is provided with a plurality of suction guide holes.

4. The smoke and dust treatment apparatus for welding according to claim 1, characterized in that: the double-layer dust extraction cover is provided with a plurality of suction holes, and the suction holes are spaced on the inner layer of the double-layer dust extraction cover.

5. The smoke and dust treatment apparatus for welding according to claim 1, characterized in that: the smoke and dust treatment apparatus for welding also includes a mechanical arm, one end of the mechanical arm is detachably connected with the outer layer of the double-layer dust extraction cover, which is used to drive the double-layer dust extraction cover to move, and the other end of the mechanical arm is fixedly connected with the residue collection chamber.

6. The smoke and dust treatment apparatus for welding according to claim 1, characterized in that: the physical filter layer comprises a dust collecting plate layer, a HEPA filter plate layer, an activated carbon filter plate layer, a silver ion filter plate layer and a PTFE membrane covered filter material layer.

Description

DESCRIPTION OF SEVERAL VIEWS OF THE ATTACHED DRAWINGS

[0023] FIG. 1 is a structural diagram of an embodiment of the invention;

[0024] FIG. 2 is a schematic diagram of the positional relation of a double-layer dust extraction cover and an industrial brush in the embodiment of the invention;

[0025] FIG. 3 is a schematic diagram of the positional relation of the industrial brush, first air guide portions and a second air guide portion in the embodiment of the invention.

REFERENCE SIGNS

[0026] 1, welding gun head; 2, protective cover; 3, double-layer dust extraction cover; 4, industrial brush; 5, clamp; 6, mechanical arm; 7, air guide hose; 8, metal filter screen; 9, magnetic residual box; 10, electromagnetic chuck; 11, air inlet; 12, air outlet; 13, residue collection chamber; 14, exhaust fan; 15, smoke purification chamber; 16, air guide iron pipe; 17, gas discharge passage; 18, wire brush; 19, suction guide hole; 20, suction hole; 21, rigid sleeve; 22, drive motor; 23, air guide iron column; 24, second air guide portion.

DETAILED DESCRIPTION OF THE INVENTION

[0027] In order to make the purpose, technical scheme and advantages of the embodiment of the invention clearer, the embodiment will be described in detail in combination with the attached drawings. It should be noted that the following description only relates to the technical solution of the present invention and technologies directly related to the technical solution.

[0028] A smoke and dust treatment apparatus for welding comprises a polishing and dust extraction module and a smoke and dust purification module, wherein the smoke and dust purification module is disposed on one side of the polishing and dust extraction module and is communicated with the polishing and dust extraction module through an air guide hose 7;

[0029] The polishing and dust extraction module comprises a double-layer dust extraction cover 3, a protective cover 2, an industrial brush 4, first air guide portions, a second air guide portion 24 and a drive motor 22, wherein the protective cover 2, the first air guide portions, the second air guide portion 24 and the double-layer dust extraction cover 3 are sequentially connected and are internally communicated, the industrial brush 4 is disposed in the protective cover 2 and can be driven by the drive motor 22, which is disposed over the protective cover 2, to rotate to polish a workpiece;

[0030] Wherein, a double-layer dust extraction cover 3 comprises an outer layer, an inner layer and a gap layer defined by the outer layer and the inner layer, and has a necked end and an expanded end, and an end, away from the protective cover 2, of the second air guide portion 24 is connected to the necked end of the inner layer of the double-layer air extraction cover 3; and the double-layer dust extraction cover 3 is beneficial to internal ventilation and can more extensively extract smoke, dust and hazardous substances generated in operation.

[0031] Wherein, the first air guide portions are multiple air guide iron columns 23 which are distributed at the top of the protective cover 2 in a circumferential direction, a rotary shaft supporting hole is formed in the center of an upper surface of the protective cover 2, the drive motor 22 is fixedly mounted on the upper surface of the protective cover 2 and is connected to the industrial brush 4 through a rotary shaft penetrating through the rotary shaft supporting hole.

[0032] The smoke and dust purification module comprises a residual collection chamber 13, a smoke purification chamber 15, an exhaust fan 14 and a gas discharge passage 17, wherein the smoke purification chamber 15 is communicated with the residual collection chamber 13 through an air guide iron pipe 16, the exhaust fan 14 is disposed below the smoke purification chamber 15 and is used to provide a negative pressure for delivering smoke and dust into the smoke and dust purification module from the polishing and dust extraction module, and the gas discharge passage is an L-shaped passage and is used to exhaust smoke purified by the smoke purification chamber 15 to the atmosphere.

[0033] The residue collection chamber 13 is a cavity formed with an air inlet 11 and an air outlet 12, wherein the air outlet 12 is located close to the bottom of the cavity, and a metal filter screen 8, a magnetic residue box 9 and an electromagnetic chuck 10 are disposed in the cavity; the metal filter screen 8 is obliquely disposed below the air inlet 11, a periphery of the metal filter screen 8 is fixedly connected to a side wall of the residue collection chamber 13, the electromagnetic chuck 10 is fixedly disposed at the bottom of the residual collection chamber 13, and the magnetic residue box 9 is disposed on the electromagnetic chuck 10;

[0034] The smoke purification chamber 15 is sequentially provided with an inlet, a physical filter layer and an outlet, wherein the outlet is formed in a position, corresponding to the exhaust fan 14, of the bottom of the smoke purification chamber 15;

[0035] One end of the air guide iron pipe 16 is connected to the air outlet 12 of the residue collection chamber 13 through a rigid sleeve and a flange, and the other end of the air guide iron pipe 16 is connected to the inlet of the smoke purification chamber 15 through a rigid sleeve and a flange;

[0036] One end of the air guide hose 7 is connected to the necked end of the outer layer of the double-layer dust extraction cover 3 and is communicated with the gap layer of the double-layer dust extraction cover 3, and the other end of the air guide hose 7 is connected to the air inlet 11 of the residue collection chamber 13 through a rigid sleeve and a flange;

[0037] The smoke and dust treatment apparatus for welding further comprises a control chamber, wherein the control chamber is in signal connection with a mechanical arm 6, the exhaust fan 14 and the drive motor 22 and is used to control the mechanical arm 6, the exhaust fan 14 and the drive motor 22 to work.

[0038] Before welding, the mechanical arm 6 moves to drive a welding gun head 1 to enter the rigid sleeve 21 and to stretch out of the industrial brush 4. When the mechanical arm 6 drives the double-layer dust extraction cover 3 to move, the exhaust fan 14 is slowly started; when the mechanical arm 6 drives the double-layer dust extraction cover 3 to reach an initial welding point, the mechanical arm 6 stops moving for 1-2 seconds, at this moment, the exhaust fan 14 starts to work normally, an air flow passes through suction holes 20 in the inner side of the double-layer dust extraction cover 3 and suction guide holes 19 in the industrial brush 4, and air starts to be taken in. When welding is started, the welding gun head 1 moves to perform welding; the double-layer dust extraction cover 3 moves along with the welding gun head 1 to collect smoke and dust and to shield sparks. After welding is ended, a clamp 5 releases the welding gun head 1, which is then moves to the inner side of the double-layer dust extraction cover 3; then, the clamp 5 clamps the welding gun head 1 again; after that, the mechanical arm 6 drives the industrial brush 4 to move to the initial welding point again; the mechanical arm 6 stops moving for 1-2 seconds, the industrial brush 4 starts to rotate at a high speed, and the exhaust fan 14 starts to work, and afterwards, polishing is carried out along a welding path. After polishing, the mechanical arm 6 returns to the original position.

[0039] When the exhaust fan 14 operates at a high speed, a negative-pressure region is formed near the suction holes of the double-layer dust extraction cover 3 and the suction guide holes of the industrial brush 4, and smoke and dust generated in the welding process enter the smoke purification module through the air guide hose 7 under the effect of a negative pressure. When polishing is needed, the mechanical arm 6 drives the double-layer dust extraction cover 3 to move, the drive motor 22 drives the industrial brush 4 to rotate at a high speed, the wire brush 18 performs polishing to remove dust and rust, the exhaust fan 14 rotates at a high speed to provide a strong suction force, and residues such as iron filings generated in the polishing process are extracted via the suction guide holes 19 in the industrial brush 4.

[0040] As a preferred solution, the smoke and dust treatment apparatus for welding further comprises a welding mechanism, wherein the welding mechanism comprises a welding gun head 1 and a wire feeding mechanism connected to the welding gun head 1, the welding gun head 1 movably penetrates through the double-layer dust extraction cover 3 through a rigid sleeve 21, the rigid sleeve 21 is fixedly connected to the inner layer of the double-layer dust extraction cover 3, a clamp 5 is disposed on the rigid sleeve 21 and is used to fix the welding gun head 1 on the rigid sleeve 2, and the wire feeding mechanism is fixed on a mechanical arm 6 of a welding robot.

[0041] On the basis of the technical scheme of the invention, a person skilled in the art can carry out various improvements and deformations on the basis of the above embodiments, and these improvements and deformations fall within the protection scope of the invention.