A device for realizing automatic maintenance of robot welding gun nozzle and conductive nozzle
By designing automatic maintenance devices and liquid anti-splash agents, the problem of untimely manual maintenance is solved, and the automated maintenance of welding torch nozzles and conductive nozzles is realized, which extends the service life, improves welding quality and production efficiency, and reduces costs.
Patent Information
- Application Number
- CN201811550777.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2018-12-18
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2038-12-18
AI Technical Summary
There are problems of untimely and incomplete maintenance of robot welding torch nozzles and conductive nozzles, resulting in reduced welding quality and shortened service life.
Design an automatic maintenance device, including mounting rods, support rods, flip arms and cylinders, and use liquid anti-splash agent to achieve automatic maintenance. The frequency is controlled through timing or counting instructions to ensure that the welding nozzle is automatically applied to the anti-splash agent after welding.
It extends the service life of the conductive nozzle and protective sleeve, reduces welding defects, improves production efficiency, and reduces maintenance costs, with significant results.
Smart Images
Figure CN109530888B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of robot welding, and in particular to a device for realizing automatic maintenance of a nozzle and a conductive nozzle of a robot welding gun. Background Art
[0002] In the process of automatic welding of robots, the sparks and spatters generated in the process of carbon dioxide shielded welding will stick to the conductive nozzle and the nozzle protective cover. If there is too much adhesion, it will affect the welding quality and the life of the conductive nozzle and the protective cover. Therefore, after welding for a certain period of time, the worker needs to dip the welding nozzle with anti-splash paste to make the anti-splash paste infiltrate a layer on the conductive nozzle and the protective cover to form a protective layer of anti-splash adhesion. As the anti-splash paste is oxidized and disappears during high-temperature baking, the welding gun nozzle needs to be dipped with another layer of anti-splash paste after a certain period of use. This cycle is a necessary welding nozzle maintenance measure during carbon dioxide shielded welding to ensure the normal use of the welding nozzle. However, in the actual work process, the workers cannot dip the welding nozzle with anti-splash paste in time. Sometimes they forget to maintain it when they work fast, or they maintain it when they find that the welding nozzle is not right. Sometimes they are lazy and don’t dip it or dip it occasionally, which leads to the welding nozzle not being effectively protected and maintained normally, maintaining the best state, greatly reducing the service life, increasing losses, and wasting time. Summary of the invention
[0003] The technical problem to be solved by the present invention is to provide a device for realizing automatic maintenance of the nozzle and conductive nozzle of a robot welding gun, thereby solving the drawbacks of manual maintenance of the welding nozzle. Due to timely maintenance and cooling of the welding nozzle, welding spatter will not form adhesion and automatically fall off.
[0004] The technical solution adopted by the present invention to solve its technical problems is: to provide a device for realizing automatic maintenance of the nozzle and conductive nozzle of a robot welding gun, comprising a mounting rod, a support rod and a flip arm, wherein one end of the mounting rod is connected to the lower part of the support rod through a locking block, a base plate is installed on the upper end of the support rod, a detachable measuring cup is installed on the base plate, an extension plate is provided on one side of the base plate, a cylinder support is installed on the free end of the extension plate, a cylinder is rotatably connected to the middle part of the cylinder support, a piston rod of the cylinder is rotatably connected to one end of the flip arm, the middle part of the flip arm is rotatably connected to the upper part of the cylinder support, and a cup cover is installed on the other end of the flip arm.
[0005] As a supplement to the technical solution described in the present invention, the measuring cup is made of plastic.
[0006] As a supplement to the technical solution described in the present invention, a plurality of elastic baffles are evenly arranged around the bottom plate.
[0007] As a supplement to the technical solution described in the present invention, a tension spring is installed in the middle of the upper end of the extension plate, and one end of the tension spring is connected to the flip arm.
[0008] As a supplement to the technical solution described in the present invention, a fixing plate is installed at one end of the mounting rod, and mounting through holes are opened on both sides of the fixing plate.
[0009] As a supplement to the technical solution described in the present invention, two sides of the lower part of the cylinder support are vertically opened with a straight through hole, and screws fixed to the extension plate are installed in the straight through hole.
[0010] As a supplement to the technical solution described in the present invention, a first circular through hole for the support rod to pass through is vertically opened in the middle of one side of the locking block, a first cut is vertically opened on one side of the first circular through hole, and the locking block is provided with a hole perpendicular to the first cut plane and a screw screwed into the hole.
[0011] As a supplement to the technical solution described in the present invention, a second circular through hole is horizontally opened in the middle of the other side of the locking block for the installation rod to pass through, and a second cut is horizontally opened on one side of the second circular through hole. The locking block is provided with a hole perpendicular to the second cut plane and a screw screwed into the hole.
[0012] As a supplement to the technical solution described in the present invention, the base plate and the extension plate are integrally formed.
[0013] Beneficial effect: The present invention relates to a device for realizing automatic maintenance of the nozzle and the conductive nozzle of a robot welding gun, which solves the disadvantages of manual maintenance of the welding nozzle. Due to timely maintenance and cooling of the welding nozzle, welding spatter will not form adhesion and automatically fall off. The service life of the conductive nozzle and the protective cover is greatly extended, welding defects are reduced, costs are saved, production efficiency is improved, and the improvement investment cost is low, and the effect is remarkable. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the structure of the present invention;
[0015] Figure 2 It is a structural schematic diagram of the base plate and various components installed on the base plate of the present invention;
[0016] Figure 3 The present invention Figure 1 A partial enlarged view of
[0017] Figure 4 It is a front view of the present invention;
[0018] Figure 5 It is a right side view of the present invention;
[0019] Figure 6 The present invention Figure 5 A partial enlarged view of
[0020] Figure 7 It is a structural schematic diagram of the present invention in use state.
[0021] Illustration: 1. Mounting rod, 2. Locking block, 3. Support rod, 4. Bottom plate, 5. Elastic baffle, 6. Measuring cup, 7. Cup cover, 8. Flip arm, 9. Cylinder support, 10. Cylinder, 11. Tension spring, 12. Extension plate, 13. Fixing plate, 14. Mounting through hole, 15. Slotted through hole, 16. Round through hole, 17. Cutout. DETAILED DESCRIPTION
[0022] The present invention will be further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms fall within the scope limited by the appended claims of the application equally.
[0023] The embodiment of the present invention relates to a device for realizing automatic maintenance of a robot welding gun nozzle and a conductive nozzle, such as Figure 1-7 As shown, it includes a mounting rod 1, a support rod 3 and a flip arm 8, one end of the mounting rod 1 is connected to the lower part of the support rod 3 through a locking block 2, a base plate 4 is installed on the upper end of the support rod 3, a detachable measuring cup 6 is installed on the base plate 4, an extension plate 12 is provided on one side of the base plate 4, a cylinder support 9 is installed on the free end of the extension plate 12, a cylinder 10 is rotatably connected to the middle part of the cylinder support 9, a piston rod of the cylinder 10 is rotatably connected to one end of the flip arm 8, the middle part of the flip arm 8 is rotatably connected to the upper part of the cylinder support 9, and a cup cover 7 is installed on the other end of the flip arm 8.
[0024] The measuring cup 6 is made of plastic. The remaining amount of the anti-splashing agent in the measuring cup 6 can be clearly observed. A plurality of elastic baffles 5 are evenly arranged around the bottom plate 4. The elastic baffles 5 elastically clamp and fix the plastic measuring cup 6. The bending curvature and the elastic pressing force can be adjusted to facilitate the taking and placing of the measuring cup 6.
[0025] A tension spring 11 is installed in the middle of the upper end of the extension plate 12 , and one end of the tension spring 11 is connected to the flip arm 8 .
[0026] A fixing plate 13 is installed at one end of the mounting rod 1 , and mounting through holes 14 are opened on both sides of the fixing plate 13 .
[0027] Both sides of the lower part of the cylinder support 9 are vertically provided with a through hole 15, and screws fixed to the extension plate 12 are installed in the through hole 15. Within a certain range, the upper and lower positions of the cylinder support 9 can be adjusted as needed.
[0028] A first circular through hole 16 is vertically opened in the middle of one side of the locking block 2 for the support rod 3 to pass through, and a first cutout 17 is vertically opened on one side of the first circular through hole 16. A hole perpendicular to the plane of the first cutout 17 and a screw screwed into the hole are provided on the locking block 2. A second circular through hole 18 is horizontally opened in the middle of the other side of the locking block 2 for the installation rod 1 to pass through, and a second cutout 19 is horizontally opened on one side of the second circular through hole 18. A hole perpendicular to the plane of the second cutout 19 and a screw screwed into the hole are provided on the locking block 2. The locking block 2 connects the support rod 3 and the installation rod 1 to adjust the angle and distance and lock and fix them.
[0029] The bottom plate 4 and the extension plate 12 are integrally formed. The purpose of the integral forming is to increase the connection strength between the bottom plate 4 and the extension plate 12.
[0030] The maintenance measures for the welding nozzle must be taken during the carbon dioxide protection welding process to ensure the normal use of the welding nozzle. It cannot be completely solved by manual intervention or supervision. Can automatic maintenance be used? After conceiving, the robot's own running action is realized. A fixing device is made on the robot's mounting seat to fix the anti-splash paste box on the device. The robot compiles an action program. After the welding is completed, it dips into the anti-splash paste box. Isn't it automatic maintenance? But the problem is that the robot action is to repeat a program action according to the programmed program, and repeat it in one position. The anti-splash paste is a soft solid that forms a pit and cannot be dipped. It is impossible to change the position at any time like manual. For example, the external robot dips once after each welding. The frequency is too high, which wastes the anti-splash paste. If it is dipped too much, it will form drips and affect the weld. Add timing or counting instructions to the robot running program to control the frequency. Consider using timing instructions. If there is a shutdown or tooling switch in the middle, it cannot be effectively maintained. The counting instruction is feasible and accurate. Maintenance is carried out according to the number of welding times. In this way, the robot will automatically maintain the welding nozzle once after welding to this number of times. The maintenance purpose is achieved in this cycle, and the frequency problem is solved.
[0031] But how to solve the problem of anti-splash paste? It would be great if it was liquid. The liquid level would only drop slightly after being dipped, and the liquid level would remain flat, which would not affect the effect of dipping the welding nozzle. Is there such a liquid anti-splash agent? So I searched online and learned from a chemical company that this liquid anti-splash agent is a perfect substitute for the paste anti-splash agent. It is transparent, non-toxic, smokeless, easy to use and clean, and has a better effect on welding nozzle maintenance and cooling. The other party sent me a bottle for free trial. After trying it, the effect was good and it was more convenient to clean, so the problem of anti-splash paste was solved.
[0032] Through the above solutions, we have gradually solved the problem and continuously improved it, and finally successfully applied it to automated welding production, solving the drawbacks of manual maintenance of welding nozzles. Due to timely maintenance and cooling of welding nozzles, welding spatter will not form adhesion and automatically fall off. It greatly extends the service life of the conductive nozzle and protective cover, reduces welding defects, saves costs, improves production efficiency, and the improvement investment cost is low, with significant results.
[0033] When the equipment is in production, the gas source enters the cylinder 10, and the cylinder 10 drives the flip arm 8 to open the cup cover 7. The robot welding program adds calculation instructions. The robot completes welding for one product and counts one frequency. When the set frequency is reached (the frequency can be set according to the number of product welds and the maintenance effect), the robot carries a welding gun and inserts the conductive nozzle and nozzle into the measuring cup 6 filled with anti-splash agent liquid for a few seconds (the time can be set), and then takes out the welding gun and shakes it vertically for several times to remove the residual hanging liquid, cools and applies the anti-splash agent maintenance, and then welds, and so on. When the gas source is turned off, the cup cover 7 automatically closes. After the gas source is cut off, the cup cover 7 can still generate tension to cover the cup cover 7 tightly on the cup mouth. A cup of anti-splash agent can be used for more than half a month. When the liquid is used below the scale line and it is almost out of reach, add the liquid again. The device has low cost (several hundred yuan), significant practical effect, and low maintenance cost.
Claims
1. A device for realizing automatic maintenance of a robot welding gun nozzle and a conductive nozzle, comprising a mounting rod (1), a support rod (3) and a flip arm (8), characterized in that: One end of the mounting rod (1) is connected to the lower part of the support rod (3) through a locking block (2); a base plate (4) is installed on the upper end of the support rod (3); a detachable measuring cup (6) is installed on the base plate (4); an extension plate (12) is provided on one side of the base plate (4); a cylinder support (9) is installed on the free end of the extension plate (12); a cylinder (10) is rotatably connected to the middle part of the cylinder support (9); a piston rod of the cylinder (10) is rotatably connected to one end of a flip arm (8); a middle part of the flip arm (8) is rotatably connected to the upper part of the cylinder support (9); The other end of the flip arm (8) is installed with a cup cover (7); a plurality of elastic baffles (5) are evenly arranged around the base plate (4); a tension spring (11) is installed in the middle of the upper end of the extension plate (12), and one end of the tension spring (11) is connected to the flip arm (8); a first circular through hole (16) is vertically opened in the middle of one side of the locking block (2) for the support rod (3) to pass through, and a first cutout (17) is vertically opened on one side of the first circular through hole (16); and a hole perpendicular to the plane of the first cutout (17) and a screw screwed into the hole are provided on the locking block (2).
2. The device for realizing automatic maintenance of a robot welding gun nozzle and a conductive nozzle according to claim 1, characterized in that: The measuring cup (6) is made of plastic.
3. The device for realizing automatic maintenance of a robot welding gun nozzle and a conductive nozzle according to claim 1, characterized in that: A fixing plate (13) is installed at one end of the installation rod (1), and installation through holes (14) are opened on both sides of the fixing plate (13).
4. The device for realizing automatic maintenance of a robot welding gun nozzle and a conductive nozzle according to claim 1, characterized in that: Both sides of the lower part of the cylinder support (9) are vertically provided with through holes (15), and screws fixed to the extension plate (12) are installed in the through holes (15).
5. The device for realizing automatic maintenance of a robot welding gun nozzle and a conductive nozzle according to claim 1, characterized in that: A second circular through hole (18) is horizontally opened in the middle of the other side of the locking block (2) for the installation rod (1) to pass through, and a second cutout (19) is horizontally opened on one side of the second circular through hole (18). The locking block (2) is provided with a hole perpendicular to the plane of the second cutout (19) and a screw screwed into the hole.
6. The device for realizing automatic maintenance of a robot welding gun nozzle and a conductive nozzle according to claim 1, characterized in that: The bottom plate (4) and the extension plate (12) are integrally formed.