AUTOMATIC ACTIVATOR COATING DEVICE FOR WIRE AND ARC ADDITIVE MANUFACTURE

Abstract

An automatic activator coating device for wire and arc additive manufacture includes a base, a mechanical arm is arranged on the upper side of the base, a clamping mechanism is arranged at the lower end of the mechanical arm, a container bottle is clamped on the clamping mechanism, one end of the container bottle is communicated with a sprayer, one end of the sprayer is communicated with an atomizing nozzle, the container bottle is communicated with the gas bottle, and a gas pressure regulating valve is arranged on the gas bottle; and a piston partition is arranged in the sprayer, the container bottle is communicated with an activator converging cavity in one end of the sprayer, a piston rod and a resetting mechanism are arranged in a mounting cavity in the other end of the sprayer, an open hole is formed in the inner surface of the sprayer

Claims

1. An automatic activator coating device for wire and arc additive manufacture, comprising a base, wherein, a vertically-down mechanical arm is arranged on an upper side of the base, a clamping mechanism is arranged at a lower end of the mechanical arm, a container bottle is clamped on the clamping mechanism, one end of the container bottle is communicated with a sprayer, one end of the sprayer is communicated with an atomizing nozzle; a gas bottle is arranged on one side of the base, a gas pressure regulating valve is arranged at a gas outlet of the gas bottle, and the gas pressure regulating valve is communicated with the container bottle through a gas feed pipe; a piston partition capable of moving in a length direction of the sprayer is arranged in the sprayer, the piston partition is slidably and hermetically connected with an inner wall of the sprayer, and divides an inner cavity of the sprayer into an activator converging cavity and a mounting cavity, an activator conveying cavity is further formed in a side wall of the sprayer, the container bottle is communicated with the activator converging cavity, the atomizing nozzle is communicated with the activator conveying cavity, a piston rod and a resetting mechanism are arranged in the mounting cavity, one end of the piston rod is fixedly connected with the piston partition, one end of the resetting mechanism is connected to an inner surface of one end, connected with the atomizing nozzle, of the sprayer, an other end of the piston rod is movably fit with an other end of the resetting mechanism, and an open hole enabling an interior of the sprayer to be communicated with the activator conveying cavity is formed in the inner surface of the sprayer.

2. The automatic activator coating device for wire and arc additive manufacture according to claim 1, wherein, the resetting mechanism comprises a spring and an abutting seat, one end of the spring is fixedly connected to the inner surface of one end, connected with the atomizing nozzle, of the sprayer, an other end of the spring is fixedly connected with the abutting seat, and one end, away from the piston partition, of the piston rod is movably fit with the abutting seat.

3. The automatic activator coating device for wire and arc additive manufacture according to claim 2, wherein, a fitting groove is formed in one end, facing the piston rod, of the abutting seat, and one end of the piston rod is movably inserted into the fitting groove.

4. The automatic activator coating device for wire and arc additive manufacture according to claim 1, wherein, a source nipple communicated with the activator converging cavity is arranged at one end, away from the atomizing nozzle, of the sprayer, and the container bottle is in threaded connection with the source nipple.

5. The automatic activator coating device for wire and arc additive manufacture according to claim 4, wherein, the clamping mechanism comprises a fixing rod and a clamping rod, the fixing rod is horizontally arranged and fixedly connected on the mechanical arm, the clamping rod is vertically arranged, and a top of the clamping rod is fixedly connected with the fixing rod; a bottom of the clamping rod is fixedly connected with a clamping part, and the container bottle is clamped on the clamping part.

6. The automatic activator coating device for wire and arc additive manufacture according to claim 2, wherein, a source nipple communicated with the activator converging cavity is arranged at one end, away from the atomizing nozzle, of the sprayer, and the container bottle is in threaded connection with the source nipple.

7. The automatic activator coating device for wire and arc additive manufacture according to claim 6, wherein, the clamping mechanism comprises a fixing rod and a clamping rod, the fixing rod is horizontally arranged and fixedly connected on the mechanical arm, the clamping rod is vertically arranged, and a top of the clamping rod is fixedly connected with the fixing rod; a bottom of the clamping rod is fixedly connected with a clamping part, and the container bottle is clamped on the clamping part.

8. The automatic activator coating device for wire and arc additive manufacture according to claim 3, wherein, a source nipple communicated with the activator converging cavity is arranged at one end, away from the atomizing nozzle, of the sprayer, and the container bottle is in threaded connection with the source nipple.

9. The automatic activator coating device for wire and arc additive manufacture according to claim 8, wherein, the clamping mechanism comprises a fixing rod and a clamping rod, the fixing rod is horizontally arranged and fixedly connected on the mechanical arm, the clamping rod is vertically arranged, and a top of the clamping rod is fixedly connected with the fixing rod; a bottom of the clamping rod is fixedly connected with a clamping part, and the container bottle is clamped on the clamping part.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0017] FIG. 1 is a structural schematic diagram of an automatic activator coating device; and

[0018] FIG. 2 is a section view of a sprayer.

[0019] In the drawings: 1. Base; 2. Mechanical arm; 3. Clamping mechanism; 3a. Fixing rod; 3b. Clamping rod; 3c. Clamping part; 4. Container bottle; 5. Sprayer; 5a. Activator converging cavity; 5b. Mounting cavity; 5c. Activator conveying cavity; 5d. Open hole; 5e. Source nipple; 6. Atomizing nozzle; 7. Gas bottle; 8. Gas pressure regulating valve; 9. Gas feed pipe; 10. Piston partition; 11. Piston rod; 12. Resetting mechanism; 12a. Spring; 12b. Abutting seat; and 12b1. Fitting groove.

DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The following is specific embodiments of the present disclosure, the technical solutions of the present disclosure are further described with reference to the accompanying drawings, but the present disclosure is not limited to these embodiments.

[0021] As shown in FIG. 1 and FIG. 2, an automatic activator coating device for wire and arc additive manufacture includes a base 1, a vertically-down mechanical arm 2 is arranged on the upper side of the base 1, a clamping mechanism 3 is arranged at a lower end of the mechanical arm 2, and a container bottle 4 is clamped on the clamping mechanism 3. The clamping mechanism 3 includes a fixing rod 3a and a clamping rod 3b, the fixing rod 3a is horizontally arranged and fixedly connected on the mechanical arm 2, the clamping rod 3b is vertically arranged, and a top of the clamping rod is fixedly connected with the fixing rod 3a, a bottom of the clamping rod 3b is fixedly connected with a clamping part 3c, and the container bottle 4 is clamped on the clamping part 3c. One end of the container bottle 4 is communicated with a sprayer 5, a source nipple 5e communicated with an activator converging cavity 5a is arranged at one end of the sprayer 5, the container bottle 4 is in threaded connection with the source nipple 5e, and the other end of the sprayer 5 is communicated with an atomizing nozzle 6. The atomizing nozzle 6 in the embodiment is the prior art, which is not repeated here, for example, it can have the same or similar structure with the patent of China “Anti-blocking secondary atomizing nozzle system” (Publication Number: CN210886537U; publication date: Jun. 30, 2020). A gas bottle 7 is arranged on one side of the base 1, a gas pressure regulating valve 8 is arranged at a gas outlet of the gas bottle 7, and the gas pressure regulating valve 8 is communicated with the container bottle 4 through a gas feed pipe 9. A piston partition 10 capable of moving in the length direction of the sprayer is arranged in the sprayer 5, the piston partition 10 is hermetically connected with an inner surface of the sprayer 5, and divides an inner cavity of the sprayer 5 into the activator converging cavity 5a and a mounting cavity 5b. An activator conveying cavity 5c is further formed in a side wall of the sprayer 5, the container bottle 4 is communicated with the activator converging cavity 5a, the atomizing nozzle 6 is communicated with the activator conveying cavity 5c. A piston rod 11 and a resetting mechanism 12 are arranged in the mounting cavity 5b, one end of the piston rod 11 is fixedly connected with the piston partition 10, one end of the resetting mechanism 12 is fixedly connected to the inner surface of one end, connected with the atomizing nozzle 6, of the sprayer 5, and the other end of the piston rod 11 is movably fit with the other end of the resetting mechanism 12. An open hole 5d is formed in the inner surface of the sprayer 5, and the open hole 5d is communicated with the atomizing nozzle 6 through the activator conveying cavity 5c.

[0022] An operator turns on the gas pressure regulating valve 8, and helium in the gas bottle 7 enters the container bottle 4 through the gas feed pipe 3. An activator in the container bottle 4 enters the activator converging cavity 5a through the source nipple 5e under the action of helium pressure, and the piston partition 10 and the piston rod 11 move in the sprayer 5 under the action of the helium pressure. The piston partition 10 moves downwards, after the volume of the activator converging cavity 5a is increased downwards, the activator converging cavity 5a is communicated with the activator conveying cavity 5c through the open hole 5d. The activator in the activator converging cavity 5a is conveyed into the atomizing nozzle 6 through the open hole 5d and the activator conveying cavity 5c, the high-pressure helium provided by the gas bottle 7 may drive the activator to move at a high speed, the activator moving at the high speed may form spray when conveyed in the activator conveying cavity 5c, and is sprayed out through an outlet of the atomizing nozzle 6 to form fine atomized spray. The atomizing nozzle 6 is also driven by the mechanical arm 2 and the clamping mechanism 3 to move along a programmed path, thereby achieving the objectives of automatic and uniform spray coating. The helium in the gas bottle 7 is also sprayed out of the atomizing nozzle 6 along with the activator, which serves as protective gas during machining. The coating amount corresponds to gas pressure, and the two factors are associated with each other. The operator regulates the gas pressure regulating valve 8 to change the pressure of the helium sprayed out of the gas bottle 7, so as to change the coating amount of the atomizing nozzle 6. The helium pressure is usually 0.4 MP-0.6 MP during coating, and the width of a sector zone formed when the surface of a workpiece is coated with the activator is 5 cm-10 cm.

[0023] Furthermore, as shown in FIG. 2, the resetting mechanism 12 includes a spring 12a and an abutting seat 12b. One end of the spring 12a is fixedly connected to the inner surface of one end, connected with the atomizing nozzle 6, of the sprayer 5, the other end of the spring 12a is fixedly connected with the abutting seat 12b, and one end, away from the piston partition 10, of the piston rod 11 is movably fit with the abutting seat 12b. A fitting groove 12b1 is formed in one end, facing the piston rod 11, of the abutting seat 12b, and one end of the piston rod 11 is movably inserted into the fitting groove 12b1. The piston rod 11 drives the abutting seat 12b to move, the abutting seat 12b compresses the spring 12a, and the spring 12a drives the piston rod 11 and the piston partition 10 to reset after the gas pressure regulating valve 8 on the gas bottle 7 is turned off.

[0024] The specific embodiments described herein are only used for illustrating the spirit of the present disclosure. Those skilled in the technical field to which the present disclosure belongs can make various modifications or supplements or make replacements in a similar way on the described specific embodiments, but these modifications or supplements or replacements will not deviate from the spirit of the present disclosure or go beyond the scope defined by accompanying claims.

[0025] Although the terms: 1. Base; 2. Mechanical arm; 3. Clamping mechanism; 3a. Fixing rod; 3b. Clamping rod; 3c. Clamping part; 4. Container bottle; 5. Sprayer; 5a. Activator converging cavity; 5b. Mounting cavity; 5c. Activator conveying cavity; 5d. Open hole; 5e. Source nipple; 6. Atomizing nozzle; 7. Gas bottle; 8. Gas pressure regulating valve; 9. Gas feed pipe; 10. Piston partition; 11. Piston rod; 12. Resetting mechanism; 12a. Spring; 12b. Abutting seat, 12b1. Fitting groove, etc. are mostly used herein, the possibility of using other terms is not excluded. These terms are only used for more conveniently describing and explaining the essence of the present disclosure, and explaining them as any additional limitation is contrary to the spirit of the present disclosure.