CN221269997U - Welding jig for battery explosion-proof valve and double-station welding equipment - Google Patents

Abstract

The utility model provides a welding jig for a battery explosion-proof valve and double-station welding equipment, which belong to the technical field of laser processing equipment. The equipment provided by the utility model reasonably solves the demands in the current market, realizes the functions of visual guiding and positioning, workpiece positioning and workpiece adsorption and automatic blanking by the jig, improves the production efficiency and improves the yield.

Description

Welding jig for battery explosion-proof valve and double-station welding equipment

Technical Field

The utility model belongs to the technical field of laser processing equipment, and particularly relates to a welding jig for a battery explosion-proof valve and double-station welding equipment.

Background

The laser welder is also called as laser welder or laser welder, and its working principle is to utilize high energy laser pulse to heat the workpiece locally in micro area, and then to diffuse the heat of the workpiece surface to the inside of the workpiece via heat transfer, so as to melt the workpiece and form specific molten pool and complete corresponding welding operation. The whole laser welding process has the advantages of accurate control, high precision, small welding seam width, small deformation, high welding speed, flat welding seam and the like, so that the laser welding machine is widely used in welding operation.

And with the development of society, laser welding machines have been successfully applied to precision welding of micro and small parts, such as packaging of integrated circuits and semiconductor device housings in the electronic industry, development of vacuum devices, connection of explosion-proof valves and battery covers in batteries in new energy industries, and the like.

However, most of the existing laser welding machines are single-station equipment, and only workpieces fixed on one set of clamp can be welded at a time, and after one set of workpieces are machined, the existing laser welding machines need to wait for a certain time until the next set of workpieces are fed, so that the operation can be continued. Therefore, the existing laser welding machine has the problems of longer idle time and lower working efficiency.

Disclosure of utility model

The utility model solves the technical problems of long idle time, low working efficiency and the like of the existing laser welding machine when welding workpieces by providing a welding jig for a battery explosion-proof valve and double-station welding equipment.

In order to solve the technical problems, the technical scheme provided by the utility model is as follows: a duplex position welding equipment for battery explosion-proof valve, it includes the frame, and the upper portion of frame is provided with welding laser head subassembly and two processing stations, and two processing stations department all is provided with welding jig and band conveyer, and two processing stations all are provided with the blanking machine in band conveyer department, are provided with middle unloading band conveyer between the discharge end of band conveyer of two processing stations. At this time, the utility model has two processing stations, which can control the welding laser head assembly to work alternately between the two processing stations, thereby reducing the idle time of the laser head assembly and improving the working efficiency of the whole equipment.

Further, the material detection sensor is arranged at the discharge end of the belt conveyor or is arranged at the feed end of the middle blanking belt conveyor, and the material detection sensor is in communication connection with the controller of the middle blanking belt conveyor. In the welding process, the utility model can detect whether the processed workpiece is conveyed to the discharge end of the corresponding belt conveyor through the corresponding material detection sensor, and when the workpiece detects the incoming material, the workpiece can control the middle blanking belt conveyor to run and convey the processed workpiece out, thereby realizing automatic blanking and automatic conveying; when the feeding device does not detect the feeding, the middle blanking belt conveyor can be controlled to be in a static state, so that energy conservation and emission reduction are realized. Furthermore, the material detection sensor preferably employs a photoelectric sensor, such as a grating, an infrared sensor, or the like.

Further, two processing stations department all is provided with the horizontal migration module, and the output and the welding jig of horizontal migration module are in the same place, and the side of horizontal migration module is provided with the spacing, has seted up the spacing groove on the spacing, and the locating part is installed to the level of in-groove level, and the locating part is in the same place with the welding jig installation. The utility model can position the welding jig through the cooperation between the limiting piece and the limiting groove, and prevent the welding jig from sliding when moving on the horizontal moving module.

Further, the blanking machine comprises a blanking support, the lower portion of the blanking support is arranged on the frame, a lifting cylinder is arranged on the upper portion of the blanking support, a horizontal telescopic cylinder is arranged on a piston rod of the lifting cylinder, an adsorption nozzle is arranged on the piston rod of the horizontal telescopic cylinder, and the adsorption nozzle can be located above a corresponding welding jig and above a corresponding belt conveyor in the moving process of the piston rod of the horizontal telescopic cylinder, so that the machined workpiece can be moved from the welding jig to the belt conveyor, and the unmachined workpiece can be moved from the belt conveyor to the welding jig. Besides, besides the structure, the blanking machine can also change the positions of the lifting cylinder and the horizontal telescopic cylinder, or adopt other structures capable of realizing that the adsorption nozzle moves between the welding jig and the belt conveyor.

Further, the welding laser head assembly is provided with a visual locating guide system, the visual locating guide system is in communication connection with a visual locating display system and a CCD display system, when the welding machine is used for welding the explosion-proof valves, the visual locating guide system can firstly locate the position of each explosion-proof valve, the located position is fed back to the overall control system, the overall control system can control the welding laser head assembly to move to the welding seam position of a workpiece and drive the welding laser head to weld, in the process, the visual locating display system can display the position information image shot by the visual locating guide system, and the CCD display system can display the welding seam image at the welding laser head in real time so as to ensure that the welding laser head can accurately locate the welding seam position and facilitate the real-time observation of operators in the welding process.

Further, the welding laser head assembly comprises an X-axis module, the X-axis module is fixedly arranged on the frame, the output end of the X-axis module moves along the horizontal direction parallel to the connecting line between the two processing stations, and the output end of the X-axis module is provided with a Y-axis module; the output end of the Y-axis module moves along the horizontal direction perpendicular to the connecting line between the two processing stations, and the Z-axis module is arranged at the output end of the Y-axis module; the output of Z axle module removes along vertical direction, and the spliced pole is installed to the output of Z axle module, is provided with the welding laser head on the spliced pole. The welding laser head has three degrees of freedom, and the welding laser head can flexibly adjust the position of the welding laser head according to processing requirements and realize the movement of the welding laser head between two processing stations.

Further, the welding laser head assembly comprises an X-axis module, the X-axis module is fixedly arranged on the frame, the output end of the X-axis module moves along the horizontal direction parallel to a connecting line between two processing stations, the output end of the X-axis module is provided with a multi-axis robot, the output end of the multi-axis robot is provided with a welding laser head, at the moment, the position of the welding laser head can be adjusted through joint rotation of the multi-axis robot, and the movement of the multi-axis robot between the two processing stations is realized through horizontal movement of the output end of the X-axis module.

Further, the welding laser head is an annular light spot swinging welding head, has a swinging function and can be suitable for various welding working conditions.

In addition, the utility model also provides a welding jig for the battery explosion-proof valve, which comprises a welding jig body, wherein the surface of the welding jig body is provided with at least one positioning groove, each positioning groove is internally provided with an adsorption hole and a material sensor, the adsorption hole in each positioning groove is independently connected with a negative pressure branch pipeline, and all the negative pressure branch pipelines are connected with the same vacuum generator device; the material sensor is in communication connection with a speed regulating valve corresponding to the negative pressure pipeline. Therefore, each positioning groove can be independently used and independently adjust the suction force, so that the throttling function is realized.

Further, each positioning groove is provided with a vacuum display meter, each vacuum display meter is in communication connection with a display screen and an alarm, and the vacuum display meter can be in communication connection with the same display screen, and each vacuum display meter can be independently connected with a display screen. The utility model can measure the pressure of each positioning groove through the vacuum display meter, the measured negative pressure value is displayed through the display screen, and when the measured negative pressure value is lower than the preset minimum negative pressure value, the alarm can be used for alarming.

From the above technical scheme, the utility model has the following advantages:

1) The equipment provided by the utility model reasonably solves the demands in the current market, realizes the functions of visual guiding and positioning, workpiece positioning and workpiece adsorption and automatic blanking by the jig, improves the production efficiency and improves the yield.

2) The welding jig has a limiting function, and can prevent the placed welding jig from sliding when moving on the moving module;

3) The utility model can accurately position the welding position by utilizing visual locating before welding;

4) The equipment provided by the utility model can realize automation; after manual pressing is started or each set of jigs is placed at the last workpiece position, the welding jigs can automatically move to the welding position and start automatic welding, automatic blanking and automatic conveying; in addition, the utility model can control the middle blanking belt conveyor to be in a static state in a blanking-free state, thereby realizing energy conservation and emission reduction;

5) The welding jig provided by the utility model has the advantages that the adsorption function is added at each workpiece position, and the digital display structure is configured, so that the vacuum pressure value can be adjusted according to the adsorption force of the workpiece; meanwhile, the utility model adopts a set of vacuum generator device to control the suction force of each suction hole on a set of welding jig, and each suction hole is independently connected with a negative pressure branch pipeline, so that each workpiece position can be independently used, thereby realizing the throttling function.

Drawings

In order to more clearly illustrate the technical solutions of the present utility model, the drawings that are needed in the description will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is an assembled block diagram of a battery pole piece;

FIG. 2 is a schematic diagram of a second embodiment of the present utility model;

FIG. 3 is a schematic diagram of a second embodiment of the present utility model with the protective cover removed;

FIG. 4 is a schematic diagram of a second embodiment of the present utility model with the shield removed;

FIG. 5 is an enlarged view of FIG. 3 at A;

FIG. 6 is an enlarged view at B in FIG. 3;

fig. 7 is a schematic structural diagram of a first embodiment of the present utility model.

In the figure: 1. a visual locating display system; 2. a CCD display system; 3. controlling a display system; 4. a laser; 5. a water chiller; 6. an explosion-proof high-pressure dust remover; 7. a Z-axis module; 8. an X-axis module; 9. welding jig; 10. a belt conveyor; 11. a blanking machine; 12. a material detection sensor; 13. a middle blanking belt conveyor; 14. a horizontal movement module; 15. a Y-axis module; 16. welding a laser head; 17. a visual locating guide system; 18. a frame; 19. a protective cover; 20. a limiting frame; 21. a limiting piece; 22. a limit groove; 23. a battery cover; 24. a battery explosion-proof valve; 11-1, a horizontal telescopic cylinder; 11-2, lifting air cylinders; 11-3, blanking brackets; 11-4, an adsorption nozzle; 9-1, welding a jig body; 9-2, a speed regulating valve; 9-3, a vacuum display meter; 9-4, adsorbing holes; 9-5, adjusting blocks.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

As shown in fig. 7, the first embodiment provides a welding jig for a battery explosion-proof valve, which comprises a welding jig body 9-1, wherein at least one positioning groove for placing a workpiece is formed in the surface of the welding jig body 9-1, an adsorption hole 9-4, a material sensor and an adjusting block 9-5 are arranged in each positioning groove, the adsorption hole 9-4 in each positioning groove is independently connected with a negative pressure branch pipeline, and all the negative pressure branch pipelines are connected with the same vacuum generator device; and each negative pressure branch pipeline is provided with a speed regulating valve 9-2, and each speed regulating valve 9-2 is in communication connection with a corresponding material sensor.

In addition, in the first embodiment, the vacuum display tables 9-3 are further installed at each positioning groove, each vacuum display table 9-3 is connected with a display screen and an alarm in a communication mode, and all the vacuum display tables 9-3 can be connected with the same display screen in a communication mode, and each vacuum display table 9-3 can be connected with one display screen independently.

Therefore, when the battery explosion-proof valve 24 to be welded is clamped by the pair of the embodiment, the battery explosion-proof valve 24 can be manually placed in the positioning groove of the welding jig 9, and the material sensor can detect that the battery explosion-proof valve 24 is placed in the positioning groove, and transmit signals to the controller of the vacuum generator device and the speed regulating valve 9-2, and the suction hole 9-4 at the positioning groove where the battery explosion-proof valve 24 is placed is controlled to generate negative pressure, so that the battery explosion-proof valve 24 is firmly sucked in the positioning groove, the function of fixing the explosion-proof valve is achieved, the battery explosion-proof valve 24 is prevented from deforming in the welding process, and the yield is improved. On the contrary, when the battery explosion-proof valve 24 is not placed in the positioning groove on the welding jig body 9-1, the first embodiment can also turn off the negative pressure branch pipeline corresponding to the positioning groove by adjusting the speed regulating valve 9-2, so as to avoid insufficient adsorption force caused by air leakage.

In addition, in the first embodiment, the pressure at each positioning groove can be measured by the vacuum display table 9-3, the measured negative pressure value is displayed by the display screen, and when the measured negative pressure value is lower than the preset minimum negative pressure value, an alarm can be used for alarming.

Example two

As shown in fig. 2 to 7, the second embodiment provides a double-station welding device for a battery explosion-proof valve, which comprises a frame 18, wherein one side of the frame 18 is sequentially provided with a laser 4, a cold water machine 5 and an explosion-proof high-pressure dust remover 6, the upper part of the frame 18 is provided with a welding laser head assembly and two processing stations, and the welding laser head assembly can work at the two processing stations in turn.

Specifically, in one embodiment, as shown in fig. 3 and 4, the welding laser head assembly includes an X-axis module 8, the X-axis module 8 is fixedly mounted on a frame 18, an output end of the X-axis module 8 moves along a horizontal direction parallel to a connecting line between two processing stations, and a Y-axis module 15 is mounted at an output end of the X-axis module 8; the output end of the Y-axis module 15 moves along the horizontal direction perpendicular to the connecting line between the two processing stations, and the Z-axis module 7 is arranged at the output end of the Y-axis module 15; the output end of the Z-axis module 7 moves along the vertical direction, the output end of the Z-axis module 7 is provided with a connecting column, the connecting column is provided with a welding laser head 16, the welding laser head 16 preferably adopts an annular light spot swing welding head, and the welding laser head has a swing function and can be suitable for various welding working conditions. The welding laser head 16 has three degrees of freedom by the movement of the X-axis module 8, the Y-axis module 15 and the Z-axis module 7, and can flexibly adjust the position of the welding laser head 16 according to the processing requirements and realize the movement between two processing stations.

In addition to the above-described structure, in other embodiments, the welding laser head assembly may also employ other structures having multiple degrees of freedom, such as: the welding laser head subassembly includes X axle module 8, X axle module 8 fixed mounting is on frame 18, the output of X axle module 8 is along being on a parallel with the horizontal direction of line between two processing stations and remove, just the multiaxis robot is installed to the output of X axle module 8, welding laser head 16 is installed to the output of multiaxis robot, and the joint rotation of this embodiment second accessible multiaxis robot adjusts the position of welding laser head 16 at this moment, realizes the removal of multiaxis robot between two processing stations through the horizontal migration of the output of X axle module 8. In addition, since the X-axis module 8, the Y-axis module 15, the Z-axis module 7, and the multi-axis robot are all conventional technical means, the second embodiment will not be described herein.

In addition, as a preferred aspect, in the second embodiment, a visual locating guide system 17 is disposed at the welding laser head 16 of the welding laser head assembly, and the visual locating guide system 17 is communicatively connected with a visual locating display system 1 and a CCD display system 2 disposed at the outer side of the protective cover 19, at this time, when the utility model is adopted to weld the explosion-proof valves, the position of each explosion-proof valve can be located through the visual locating guide system 17, and the located position is fed back to the overall control system, the overall control system can control the welding laser head assembly to move to the welding seam position of the workpiece and drive the welding laser head 16 to weld, and in this process, the visual locating display system 1 can display the position information image captured by the visual locating guide system 17, and the CCD display system 2 can display the welding seam image at the welding laser head 16 in real time, so as to ensure that the welding laser head 16 can accurately locate the welding seam position, and facilitate the real-time observation of the welding process by an operator, and the control display system 3 disposed at the outer side of the protective cover 19 can display and set all operations. On the other hand, in the second embodiment, an explosion-proof high-pressure dust remover 6 and a smoke detection sensor are further installed at the mouth of the welding laser head 16, and the smoke detection sensor is in communication connection with the explosion-proof high-pressure dust remover 6, so that the explosion-proof high-pressure dust remover 6 can be automatically started after smoke is detected.

As shown in fig. 3 and 4, the layout of the two processing stations is symmetrically arranged, and the welding jig 9, the belt conveyor 10 and the blanking machine 11 are arranged at the two processing stations.

As shown in fig. 4 and 5, the welding jig 9 is preferably the welding jig 9 according to the first embodiment, and the welding jig 9 is slidably mounted on the frame 18 along a connecting line direction between two processing stations through the horizontal moving module 14 fixed on the upper end of the frame 18, and the material sensors disposed in the positioning grooves of the welding jig 9 are all in communication connection with the controller of the horizontal moving module 14 and the overall control system of the whole equipment, so that in an actual working process, the second embodiment can judge whether the welding jig 9 is full of workpieces by monitoring whether each material sensor monitors the workpieces, thereby being convenient for the overall control system to control the whole equipment to perform automatic production. In addition, as a preferable mode, in order to avoid the sliding of the welding jig 9 when moving on the horizontal moving module 14, in the second embodiment, a limiting frame 20 is further disposed on the side surface of the horizontal moving module 14, a limiting groove 22 is formed in the limiting frame 20, a limiting piece 21 is horizontally and dynamically installed in the limiting groove 22, and the limiting piece 21 and the welding jig 9 are installed together, so that the position of the welding jig 9 is positioned and limited by the cooperation between the limiting piece 21 and the limiting groove 22.

An intermediate blanking belt conveyor 13 is arranged between the discharge ends of the belt conveyors 10 of the two processing stations, a material detection sensor 12 is arranged at the discharge end of the belt conveyor 10 of the two processing stations, or a material detection sensor 12 is arranged at the feed end of the intermediate blanking belt conveyor 13, and the material detection sensor 12 is in communication connection with a controller of the intermediate blanking belt conveyor 13. In this way, in the welding process, the second embodiment can detect whether the machined workpiece is conveyed to the discharge end of the corresponding belt conveyor 10 or falls to the feed end of the intermediate blanking belt conveyor 13 through the corresponding material detection sensor 12, and when the workpiece detects the incoming material, the workpiece can control the intermediate blanking belt conveyor 13 to run and convey the machined workpiece, so that automatic blanking and automatic conveying are realized; when the feeding device does not detect the feeding, the middle blanking belt conveyor 13 can be controlled to be in a static state, so that energy conservation and emission reduction are realized. Further, the material detection sensor 12 preferably employs a photoelectric sensor such as a grating, an infrared sensor, or the like.

As shown in fig. 6, the blanking machine 11 includes a blanking bracket 11-3, the lower part of the blanking bracket 11-3 is mounted on a frame 18, a lifting cylinder 11-2 is arranged at the upper part of the blanking bracket 11-3, a horizontal telescopic cylinder 11-1 is mounted on a piston rod of the lifting cylinder 11-2, an adsorption nozzle 11-4 is arranged on a piston rod of the horizontal telescopic cylinder 11-1, and the adsorption nozzle 11-4 can be positioned above a corresponding welding jig 9 and above a corresponding belt conveyor 10 in the moving process of the piston rod of the horizontal telescopic cylinder 11-1, so that the movement of a machined workpiece from the welding jig 9 to the belt conveyor 10 and the movement of a unprocessed workpiece from the belt conveyor 10 to the welding jig 9 are realized. In addition, besides the above structure, the position of the lifting cylinder 11-2 and the horizontal telescopic cylinder 11-1 of the blanking machine 11 may be changed, or other structures capable of realizing the movement of the suction nozzle 11-4 between the welding jig 9 and the belt conveyor 10 may be adopted.

Thus, when the battery explosion-proof valve 24 of the second embodiment is used for welding operation, the operation is as follows:

1. Firstly, placing a battery explosion-proof valve 24 into a positioning groove of a welding jig 9 manually or by a machine, and after the battery explosion-proof valve 24 is placed into the positioning groove of the welding jig 9, detecting the explosion-proof valve by a material sensor and controlling a vacuum generator device to generate negative pressure, so that a suction hole 9-4 generates negative pressure and sucks the battery explosion-proof valve 24 to play a role in fixing the battery explosion-proof valve 24, ensuring that the battery explosion-proof valve 24 cannot deform in the welding process, and improving the yield; then when the welding jig 9 is fully filled with the battery explosion-proof valve 24, the last material sensor can send out movement information, and at the moment, the sliding table of the horizontal movement module 14 can automatically drive the welding jig 9 to move to a welding area;

2. After the welding jig 9 moves to the welding area, in order to ensure the position of the welding seam, the vision locating guide system 17 firstly shoots and locates the position of each battery explosion-proof valve 24, and feeds back the located position to the overall control system, the overall control system controls the welding laser head assembly to drive the welding laser head 16 to move and weld, and at the moment, the CCD display system 2 can observe the welding process in real time;

3. After the welding operation is completed, the second embodiment controls the vacuum generator device in the welding jig 9 to release pressure and sends a feedback signal, and then the total control system receives the feedback signal and controls the welding laser head assembly to move to another processing station, and controls the horizontal telescopic cylinder 11-1 of the blanking machine 11 at the processing station where the welding operation is completed to extend the grabbing suction nozzle 11-4, and the suction nozzle 11-4 is positioned above the battery explosion-proof valve 24; then the piston rod of the lifting cylinder 11-2 is controlled to extend, the horizontal telescopic cylinder 11-1 and the adsorption nozzle 11-4 are moved downwards to the adsorption nozzle 11-4 to be in contact with the upper surface of the battery explosion-proof valve 24, and at the moment, the adsorption nozzle 11-4 can be controlled to generate negative pressure and suck the welded battery explosion-proof valve 24 and the welded battery cover 23; then controlling piston rods of the lifting cylinder 11-2 and the horizontal telescopic cylinder 11-1 to shrink, and enabling the battery explosion-proof valve 24 and the battery cover 23 adsorbed by the adsorption nozzle 11-4 to be positioned above the belt conveyor 10, wherein the second embodiment can control the pressure release and back blowing of the adsorption nozzle 11-4, so that the battery explosion-proof valve 24 and the battery cover 23 are placed on the belt conveyor 10;

4. The belt conveyor 10 is started, the welded battery explosion-proof valve 24 and the battery cover 23 are output to the middle blanking belt conveyor 13, and at this time, the material detection sensor 12 is installed at the discharge end of the belt conveyor 10 or the feeding end of the middle blanking belt conveyor 13, and in the second embodiment, the middle blanking belt conveyor 13 can be controlled to operate to output after the material detection sensor 12 detects the welded battery explosion-proof valve 24 and the welded battery cover 23.

The terms "first," "second," "third," "fourth" and the like in the description and in the claims and in the above drawings, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the utility model described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A double-station welding equipment for a battery explosion-proof valve comprises a rack; the welding machine is characterized in that a welding laser head assembly and two machining stations are arranged on the upper portion of the frame, welding jigs and belt conveyors are arranged at the two machining stations, blanking machines are arranged at the two machining stations at the positions of the belt conveyors, and a middle blanking belt conveyor is arranged between discharge ends of the belt conveyors of the two machining stations.

2. The double-station welding device for a battery explosion-proof valve according to claim 1, wherein both processing stations are provided with a material detection sensor at a discharge end of a belt conveyor or a material detection sensor is mounted at a feed end of an intermediate blanking belt conveyor, and the material detection sensors are in communication connection with a controller of the intermediate blanking belt conveyor.

3. The double-station welding equipment for the battery explosion-proof valve according to claim 1, wherein the horizontal movement modules are arranged at the two processing stations, the output ends of the horizontal movement modules are installed together with the welding jig, the side surfaces of the horizontal movement modules are provided with limiting frames, limiting grooves are formed in the limiting frames, limiting pieces are horizontally and dynamically installed in the limiting grooves, and the limiting pieces are installed together with the welding jig.

4. The double-station welding equipment for the battery explosion-proof valve according to claim 1, wherein the blanking machine comprises a blanking support, the lower part of the blanking support is arranged on the frame, a lifting cylinder is arranged on the upper part of the blanking support, a horizontal telescopic cylinder is arranged on a piston rod of the lifting cylinder, an adsorption nozzle is arranged on the piston rod of the horizontal telescopic cylinder, and the adsorption nozzle can be positioned above a corresponding welding jig and above a corresponding belt conveyor in the moving process of the piston rod of the horizontal telescopic cylinder.

5. The double-station welding apparatus for a battery explosion-proof valve according to claim 1, wherein the welding laser head assembly is provided with a visual locating guide system in communication with a visual locating display system and a CCD display system.

6. The double-station welding apparatus for a battery explosion-proof valve according to claim 1, wherein the welding laser head assembly comprises an X-axis module fixedly installed on the frame, an output end of the X-axis module moves in a horizontal direction parallel to a line connecting between two processing stations, and an output end of the X-axis module is installed with a Y-axis module; the output end of the Y-axis module moves along the horizontal direction perpendicular to the connecting line between the two processing stations, and the Z-axis module is arranged at the output end of the Y-axis module; the output of Z axle module removes along vertical direction, and the spliced pole is installed to the output of Z axle module, is provided with the welding laser head on the spliced pole.

7. The double-station welding apparatus for a battery explosion-proof valve according to claim 1, wherein the welding laser head assembly comprises an X-axis module, the X-axis module is fixedly installed on the frame, an output end of the X-axis module moves in a horizontal direction parallel to a connecting line between the two processing stations, and a multi-axis robot is installed at an output end of the X-axis module, and the welding laser head is installed at an output end of the multi-axis robot.

8. Double-station welding apparatus for battery explosion-proof valves according to claim 6 or 7, characterized in that the welding laser head is an annular spot-swing welding head.

9. A welding jig for a battery explosion-proof valve comprises a welding jig body; the welding jig is characterized in that the surface of the welding jig body is provided with at least one positioning groove, each positioning groove is internally provided with an adsorption hole and a material sensor, the adsorption hole in each positioning groove is independently connected with a negative pressure branch pipeline, and all the negative pressure branch pipelines are connected with the same vacuum generator device; the material sensor is in communication connection with a speed regulating valve corresponding to the negative pressure pipeline.

10. The welding jig for battery explosion-proof valves according to claim 9, wherein a vacuum display meter is installed at each positioning groove, and each vacuum display meter is in communication connection with a display screen and an alarm.