Workpiece automatic overlapping welding machine

By designing an automatic workpiece stacking and welding machine, the automatic stacking and welding of workpieces is achieved by using robotic arms and automated processes, which solves the problems of high cost and low efficiency caused by manual intervention in existing technologies and realizes automated production.

CN223495518UActive Publication Date: 2025-10-31KUNSHAN XINMEIRUN ELECTRONIC TECH CO LTD
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Patent Information

Application Number
CN202422865649.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-25
Publication Date
2025-10-31
Estimated Expiration
2034-11-25

AI Technical Summary

Technical Problem

The existing workpiece stacking and welding process requires manual assistance and has a low degree of automation, resulting in high production costs and low efficiency.

Method used

An automatic workpiece stacking and welding machine was designed, including a workpiece A feeding mechanism, a flipping conveying mechanism, a transfer and bonding mechanism, and a welding mechanism. The automatic stacking and welding of workpieces is realized through a robotic arm and automated process, reducing manual intervention.

Benefits of technology

It enables automated stacking and welding of workpieces, saving labor costs and improving production efficiency.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223495518U_ABST
    Figure CN223495518U_ABST
Patent Text Reader

Abstract

The utility model relates to the field of overlapping welding machines, in particular to an automatic overlapping welding machine for workpieces. The overlapping welding machine comprises a workpiece A feeding mechanism, a workpiece A overturning and conveying mechanism, a workpiece B transferring and attaching mechanism, a first workpiece horizontal conveying table, a welding mechanism, a workpiece overturning and conveying mechanism, a second workpiece horizontal conveying table and a workpiece carrying mechanism. The workpiece A feeding mechanism is used for feeding workpieces A into the workpiece A overturning and conveying mechanism one by one, and the workpiece A overturning and conveying mechanism is used for overturning the workpieces A by 180 degrees and then feeding the workpieces A into the first workpiece horizontal conveying table. A single workpiece A is conveyed into the workpiece B transferring and attaching mechanism through the workpiece A feeding mechanism to be turned over, then the workpiece B transferring and attaching mechanism moves a workpiece B and attaches the workpiece B to the workpiece A, and then the two workpieces are welded together through the welding mechanism. And the workpiece overturning and conveying mechanism overturns the welded workpiece again. The labor cost is saved, and the working efficiency is improved.
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Description

Technical Field

[0001] This utility model relates to the field of overlapping welding machines, and in particular to an automatic overlapping welding machine for workpieces. Background Technology

[0002] During the manufacturing process, different components of a workpiece need to be stacked together and then welded using a welding machine. However, the existing process of stacking and welding workpieces requires manual labor in cooperation with machinery, resulting in a low level of automation, which increases production costs and reduces work efficiency. Utility Model Content

[0003] The technical problem this utility model aims to solve is: to address the technical problems described in the background art, this utility model provides an automatic workpiece stacking and welding machine. A single workpiece A is conveyed by a workpiece A feeding mechanism to a workpiece B transfer and bonding mechanism for a 180-degree flip. Then, the workpiece B transfer and bonding mechanism moves workpiece B over and bonds it to workpiece A. A welding mechanism then welds the two workpieces together. Finally, a workpiece flipping and conveying mechanism flips the welded workpieces another 180 degrees. This application saves labor costs and improves work efficiency.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] An automatic workpiece stacking and welding machine includes a workpiece A feeding mechanism, a workpiece A flipping and conveying mechanism, a workpiece B transfer and bonding mechanism, a workpiece horizontal conveyor table one, a welding mechanism, a workpiece flipping and conveying mechanism two, and a workpiece handling mechanism. The workpiece A feeding mechanism for feeding workpieces A one by one into the workpiece A flipping and conveying mechanism, the workpiece A flipping and conveying mechanism for flipping workpieces A 180 degrees and feeding them into the workpiece horizontal conveyor table one, the workpiece horizontal conveyor table one, the workpiece flipping and conveying mechanism for flipping workpieces 180 degrees and feeding them into the workpiece horizontal conveyor table two, and the workpiece horizontal conveyor table two are arranged in sequence. The workpiece B transfer and bonding mechanism for moving workpieces B and bonding them to workpieces A is located on one side of the workpiece horizontal conveyor table one. The welding head of the welding mechanism is located above the workpiece horizontal conveyor table one, and the workpiece handling mechanism is located above the workpiece horizontal conveyor table two.

[0006] Specifically, the workpiece A loading mechanism includes a hopper, a lifting plate, a lifting plate lifting cylinder, a horizontal flow channel, a horizontal push block, a push block horizontal drive cylinder, a suction cup, and a three-axis manipulator. The horizontal flow channel is located between the hopper and the three-axis manipulator. The lifting plate is located inside the hopper and is fixed on the piston rod of the lifting plate lifting cylinder. A horizontal push block is fixed on the piston rod of the push block horizontal drive cylinder and is placed in the horizontal through groove of the horizontal flow channel. The horizontal through groove is located in the straight workpiece flow channel of the horizontal flow channel. A suction cup for holding workpiece A is installed on the three-axis manipulator.

[0007] Specifically, both the workpiece A flipping conveyor mechanism and the workpiece flipping conveyor mechanism include a workpiece conveying box, a conveying box rotating motor, a ratchet, a ratchet rotating motor, a pressure wheel, and a frame. The workpiece conveying box has a straight flow channel inside. The workpiece conveying box is rotatably connected to the frame via a shaft. The body of the conveying box rotating motor is fixed to the frame, and the output shaft of the conveying box rotating motor is connected to a fixed shaft on the workpiece conveying box. The body of the ratchet rotating motor is fixed to the workpiece conveying box, and a ratchet is fixed on the output shaft of the ratchet rotating motor. The pressure wheel is rotatably connected to a support, and the support is slidably connected to the frame. A spring connects the support and the frame. The pressure wheel and the ratchet are located on the upper and lower sides of the workpiece conveying box, respectively. The edges of the pressure wheel and the ratchet both pass through perforations on the outer shell of the workpiece conveying box. The straight flow channel is located between the pressure wheel and the ratchet.

[0008] Specifically, the workpiece B transfer and bonding mechanism includes an electric rotary table, a suction nozzle, a connecting block, a pressure block, a pressure block lifting cylinder, a guide block one, an X-axis horizontal cylinder, grippers, and a guide block two. Several connecting blocks are evenly distributed along the side of the electric rotary table. A suction nozzle is hinged to each connecting block, and a spring is provided between the tail end of the suction nozzle and the connecting block. A roller is rotatably connected to the tail end of the suction nozzle. A connecting seat is fixed to the electric rotary table, and several pressure block lifting cylinders are distributed along the edge of the connecting seat. Below each pressure block lifting cylinder... Each part has a corresponding suction nozzle. A pressure block for pressing down the roller is fixed on the piston rod of the pressure block lifting cylinder. One side of the electric rotary table is equipped with a guide block one and two guide blocks two for guiding the position of workpiece B on the suction nozzle. The guide block one is fixed on the piston rod of the X-axis horizontal cylinder. The two guide blocks two are slidably connected to two non-parallel inclined surfaces. A return spring is connected between the guide block two and the inclined surface. Roller one is rotatably connected to each of the two guide blocks two. The two rollers one are located between the two fingers of the gripper.

[0009] Specifically, the workpiece horizontal conveyor includes a horizontal straight flow channel, a pin lifting cylinder, a horizontal straight module, and pins. The horizontal straight flow channel is provided with a horizontal straight flow channel for moving the workpiece horizontally and a horizontal straight through groove for moving the pin horizontally. The horizontal straight flow channel is provided below the horizontal straight flow channel. The pin lifting cylinder is fixed on the slide of the horizontal straight module, and a pin is fixed on the piston rod of the pin lifting cylinder.

[0010] Specifically, the welding mechanism is a laser welding machine.

[0011] Specifically, the second horizontal conveyor for the workpiece is a double-belt conveyor.

[0012] Specifically, the workpiece handling mechanism includes a multi-axis manipulator and a second suction cup, with the second suction cup mounted on the multi-axis manipulator.

[0013] The beneficial effects of this utility model are as follows: This utility model provides an automatic workpiece stacking and welding machine. A single workpiece A is conveyed to a workpiece B transfer and bonding mechanism via a workpiece A feeding mechanism, where it is flipped 180 degrees. Then, the workpiece B transfer and bonding mechanism moves workpiece B over and bonds it to workpiece A. Finally, a welding mechanism welds the two workpieces together. Next, a workpiece flipping and conveying mechanism flips the welded workpieces another 180 degrees. This application saves labor costs and improves work efficiency. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the workpiece A feeding mechanism of this utility model;

[0017] Figure 3 This is a schematic diagram of the workpiece A flipping and conveying mechanism of this utility model;

[0018] Figure 4 This is a schematic diagram of the workpiece B transfer and bonding mechanism of this utility model;

[0019] In the diagram: 1. Workpiece A feeding mechanism; 2. Workpiece A flipping and conveying mechanism; 3. Workpiece B transfer and bonding mechanism.

[0020] 4. Workpiece horizontal conveyor table one; 5. Welding mechanism; 6. Workpiece flipping and conveying mechanism; 7. Workpiece horizontal conveyor table two; 8. Workpiece handling mechanism; 11. Hopper; 12. Lifting plate; 13. Lifting plate lifting cylinder; 14. Horizontal flow channel one; 15. Horizontal push block; 16. Push block horizontal drive cylinder; 17. Suction cup one.

[0021] 18. Three-axis robot, 21. Workpiece transfer box, 22. Transfer box rotation motor, 23. Ratchet, 24. Ratchet rotation motor, 25. Pressure wheel, 31. Electric rotary table, 32. Suction nozzle, 33. Connecting block, 34. Pressure block, 35. Pressure block lifting cylinder, 36. Guide block one, 37. X-axis horizontal cylinder, 38. Gripper, 39. Guide block two, 41. Horizontal linear flow channel, 42. Pin lifting cylinder, 43. Horizontal linear module. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0023] Figure 1This is a schematic diagram of the structure of this utility model; Figure 2 This is the structure of the workpiece A feeding mechanism of this utility model.

[0024] Schematic diagram; Figure 3 This is a schematic diagram of the workpiece A flipping and conveying mechanism of this utility model; Figure 4 This is a schematic diagram of the workpiece B transfer and bonding mechanism of this utility model.

[0025] As attached Figure 1 As shown, an automatic workpiece stacking welding machine includes a workpiece A feeding mechanism 1, a workpiece A flipping conveyor mechanism 2, a workpiece B transfer and bonding mechanism 3, a workpiece horizontal conveyor table 4, a welding mechanism 5, a workpiece flipping conveyor mechanism 6, a workpiece horizontal conveyor table 7, and a workpiece handling mechanism 8. The workpiece A feeding mechanism 1, the workpiece A flipping conveyor mechanism 2, the workpiece A flipping conveyor mechanism 2, the workpiece A horizontal conveyor table 4, the workpiece flipping conveyor mechanism 6, and the workpiece horizontal conveyor table 7 are arranged in sequence. The workpiece B transfer and bonding mechanism 3, which moves and bonds workpiece B to workpiece A, is located on one side of the workpiece horizontal conveyor table 4. The welding head of the welding mechanism 5 is located above the workpiece horizontal conveyor table 4, and the workpiece handling mechanism 8 is located above the workpiece horizontal conveyor table 7.

[0026] As attached Figure 2 As shown, the workpiece A loading mechanism 1 includes a hopper 11, a lifting plate 12, a lifting plate lifting cylinder 13, a horizontal flow channel 14, a horizontal push block 15, a push block horizontal drive cylinder 16, a suction cup 17, and a three-axis robot 18. The horizontal flow channel 14 is located between the hopper 11 and the three-axis robot 18. The lifting plate 12 is located inside the hopper 11 and is fixed on the piston rod of the lifting plate lifting cylinder 13. The horizontal push block 15 is fixed on the piston rod of the push block horizontal drive cylinder 16 and is placed in the horizontal through groove of the horizontal flow channel 14. The horizontal through groove is located in the straight workpiece flow channel of the horizontal flow channel 14. The three-axis robot 18 is equipped with a suction cup 17 for holding the workpiece A.

[0027] A stack of long, strip-shaped workpieces A is placed in the hopper 11. The lifting plate lifting cylinder 13 drives the lifting plate 12 at the bottom of the hopper 11 to move upward, thus raising the stack of workpieces A until the highest workpiece A reaches the pick-up position and stops moving. At this time, the three-axis robot arm 18 drives the suction cup 17 to pick up the workpiece A at the pick-up position and places the workpiece A on the horizontal flow channel 14. Then, the horizontal push block drive cylinder 16 drives the horizontal push block 15 to move horizontally, and the horizontal push block 15 can push the workpiece A forward out of the horizontal flow channel 14.

[0028] As attached Figure 3 As shown, both the workpiece A flipping conveyor mechanism 2 and the workpiece flipping conveyor mechanism 6 include a workpiece conveying box 21, a conveying box rotating motor 22, a ratchet 23, a ratchet rotating motor 24, a pressure wheel 25, and a frame. The workpiece conveying box 21 has a straight flow channel inside. The workpiece conveying box 21 is rotatably connected to the frame via a shaft. The body of the conveying box rotating motor 22 is fixed to the frame, and the output shaft of the conveying box rotating motor 22 is connected to a shaft fixed on the workpiece conveying box 21. The body of the ratchet rotating motor 24 is fixed to the workpiece conveying box 21, and a ratchet 23 is fixed on the output shaft of the ratchet rotating motor 24. The pressure wheel 25 is rotatably connected to a support, and the support is slidably connected to the frame. A spring connects the support and the frame. The pressure wheel 25 and the ratchet 23 are located on the upper and lower sides of the workpiece conveying box 21, respectively. The edges of the pressure wheel 25 and the ratchet 23 pass through perforations in the outer shell of the workpiece conveying box 21. The straight flow channel is located between the pressure wheel 25 and the ratchet 23.

[0029] Initially, the workpiece conveyor box 21 is horizontal, with one inlet connected to the outlet of the horizontal flow channel 14. When workpiece A is pushed into the workpiece conveyor box 21, the clamping wheel 25 presses it into the straight flow channel, while the thorns on the edge of the ratchet 23 pass through the row of holes arranged in a straight line on the side of workpiece A. The ratchet rotation motor 24 drives the ratchet 23 to rotate, thus pushing workpiece A along the straight flow channel. Once workpiece A is fully inside the workpiece conveyor box 21, the conveyor box rotation motor 22 rotates the workpiece conveyor box 21 180 degrees, turning the bottom surface of workpiece A upwards. Finally, workpiece A is pushed out of the workpiece conveyor box 21.

[0030] As attached Figure 4As shown, the workpiece B transfer and bonding mechanism 3 includes an electric rotary table 31, a suction nozzle 32, a connecting block 33, a pressure block 34, a pressure block lifting cylinder 35, a guide block 1 36, an X-axis horizontal cylinder 37, a gripper 38, and a guide block 2 39. Several connecting blocks 33 are evenly distributed along the side of the electric rotary table 31. A suction nozzle 32 is hinged to each connecting block 33. A spring is provided between the tail end of the suction nozzle 32 and the connecting block 33. A roller is rotatably connected to the tail end of the suction nozzle 32. A connecting seat is fixed on the electric rotary table 31. Several pressure block lifting cylinders 35 are distributed along the edge of the connecting seat. Each pressure block lifting cylinder... Below each cylinder 35 is a corresponding suction nozzle 32. The piston rod of the pressure block lifting cylinder 35 is fixed with a pressure block 34 for pressing down the roller. On one side of the electric rotary table 31, there is a guide block 36 and two guide blocks 39 for guiding the position of the workpiece B on the suction nozzle 32. The guide block 36 is fixed on the piston rod of the X-axis horizontal cylinder 37. The two guide blocks 39 are slidably connected to two non-parallel inclined surfaces. A return spring is connected between the guide block 39 and the inclined surface. Rollers 1 are rotatably connected to each of the two guide blocks 39. The two rollers 1 are located between the two fingers of the gripper 38.

[0031] First, after the suction nozzle 32 picks up the workpiece B, the electric rotary table 31 drives the suction nozzle 32 to rotate to the front of the first guide block 36. At this time, the X-axis horizontal cylinder 37 drives the first guide block 36 to move forward horizontally in a straight line. The first guide block 36 pushes the workpiece B forward on the suction nozzle 32, correcting the X-axis position of the workpiece B on the suction nozzle 32. Then, the suction nozzle 32 is moved to the second guide block 39. At this time, the two fingers of the gripper 38 are in a closed state, while the two second guide blocks 39 are close to each other. When the suction nozzle 32 is in place, the two fingers of the gripper 38 open. Driven by the return spring, the two second guide blocks 39 move outward horizontally along the two V-shaped inclined surfaces. The second guide blocks 39 can then push the workpiece B on the suction nozzle 32 to the side, thereby correcting the Y-axis position of the workpiece B on the suction nozzle 32. Then, the pressure block lifting cylinder 35 drives the pressure block 34 to move down. The pressure block 34 will press down the roller at the tail end of the suction nozzle 32, causing the suction end of the suction nozzle 32 to lift up while holding the workpiece B. Then, the electric rotary table 31 drives the suction nozzle 32 to rotate above the workpiece A on the horizontal straight flow channel 41. Finally, the pressure block 34 releases the roller, and under the spring rebound, the suction nozzle 32 swings down with the workpiece B until the workpiece B is attached to the workpiece A.

[0032] The workpiece horizontal conveyor 4 includes a horizontal straight flow channel 41, a pin lifting cylinder 42, a horizontal straight module 43, and pins. The horizontal straight flow channel 41 is provided with a horizontal straight flow channel for horizontal movement of the workpiece and a horizontal straight through groove for horizontal movement of the pin. The horizontal straight flow channel 41 is provided below the horizontal straight flow channel 41. The pin lifting cylinder 42 is fixed on the slide of the horizontal straight module 43, and a pin is fixed on the piston rod of the pin lifting cylinder 42.

[0033] After workpiece A is placed in the horizontal linear flow channel 41, the pin lifting cylinder 42 drives the pin upward and inserts it into the row hole on one side of workpiece A. Then, the horizontal linear module 43 can drive the pin to drag workpiece A horizontally for a certain distance. Next, the pin exits the row hole and moves back to its original position, then moves upward again to insert into the upper row hole and drag workpiece A to move. By repeating the above steps, workpiece A can be gradually driven to move horizontally.

[0034] Welding mechanism 5 is a laser welding machine.

[0035] The workpiece horizontal conveyor table 27 is a double-belt conveyor.

[0036] The workpiece handling mechanism 8 includes a multi-axis robot and a second suction cup. The second suction cup is mounted on the multi-axis robot. After the second suction cup picks up the welded workpiece, the multi-axis robot drives the second suction cup to move the workpiece into the loading box.

[0037] The working method of this application is as follows: First, the workpiece A loading mechanism 1 moves workpiece A into the workpiece A flipping conveyor 2. Then, the workpiece A flipping conveyor 2 flips workpiece A and horizontally conveys it to the workpiece horizontal conveyor table 4. The workpiece horizontal conveyor table 4 moves workpiece A horizontally to the bonding station. At this time, the workpiece B transfer bonding mechanism 3 moves workpiece B and bonds it to workpiece A. Then, the bonded workpiece is moved to the welding mechanism 5 for welding. The welded workpiece is then moved into the workpiece flipping conveyor 6 and flipped again. Finally, it is sent to the workpiece horizontal conveyor table 7, where the workpiece handling mechanism 8 picks up the workpiece and puts it into the loading box.

[0038] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. An automatic workpiece stacking and welding machine, characterized in that, The system includes a workpiece A loading mechanism (1), a workpiece A flipping conveyor mechanism (2), a workpiece B transfer and bonding mechanism (3), a workpiece horizontal conveyor platform one (4), a welding mechanism (5), a workpiece flipping conveyor mechanism (6), a workpiece horizontal conveyor platform two (7), and a workpiece handling mechanism (8). The workpiece A loading mechanism (1), which is used to feed workpiece A into the workpiece A flipping conveyor mechanism (2), the workpiece A flipping conveyor mechanism (2), the workpiece horizontal conveyor platform one (4), the workpiece flipping conveyor mechanism (6), and the workpiece horizontal conveyor platform two (7) are arranged together in sequence. The workpiece B transfer and bonding mechanism (3), which is used to move workpiece B and bond it to workpiece A, is located on one side of the workpiece horizontal conveyor platform one (4). The welding head of the welding mechanism (5) is located above the workpiece horizontal conveyor platform one (4), and the workpiece handling mechanism (8) is located above the workpiece horizontal conveyor platform two (7).

2. The automatic workpiece overlapping welding machine according to claim 1, characterized in that: The workpiece A loading mechanism (1) includes a hopper (11), a lifting plate (12), a lifting plate lifting cylinder (13), a horizontal flow channel (14), a horizontal push block (15), a push block horizontal drive cylinder (16), a suction cup (17), and a three-axis manipulator (18). The horizontal flow channel (14) is located between the hopper (11) and the three-axis manipulator (18). The lifting plate (12) is located inside the hopper (11). The lifting plate (12) is fixed on the piston rod of the lifting plate lifting cylinder (13). The horizontal push block (15) is fixed on the piston rod of the push block horizontal drive cylinder (16). The horizontal push block (15) is placed in the horizontal through groove of the horizontal flow channel (14). The horizontal through groove is located in the straight workpiece flow channel of the horizontal flow channel (14). The three-axis manipulator (18) is equipped with a suction cup (17) for holding the workpiece A.

3. The automatic workpiece stacking welding machine according to claim 1, characterized in that: Both the workpiece A flipping conveyor mechanism (2) and the workpiece flipping conveyor mechanism (6) include a workpiece conveyor box (21), a conveyor box rotating motor (22), a ratchet (23), a ratchet rotating motor (24), a pressure wheel (25), and a frame. The workpiece conveyor box (21) is provided with a straight flow channel. The workpiece conveyor box (21) is rotatably connected to the frame via a shaft. The body of the conveyor box rotating motor (22) is fixed on the frame. The output shaft of the conveyor box rotating motor (22) is connected to the shaft fixed on the workpiece conveyor box (21). The body of the machine (24) is fixed on the workpiece conveyor box (21). A ratchet (23) is fixed on the output shaft of the ratchet rotary motor (24). The clamping wheel (25) is rotatably connected to the support. The support is slidably connected to the frame. A spring is connected between the support and the frame. The clamping wheel (25) and the ratchet (23) are located on the upper and lower sides of the workpiece conveyor box (21) respectively. The edges of the clamping wheel (25) and the ratchet (23) pass through the perforations on the outer shell of the workpiece conveyor box (21). A straight flow channel is located between the clamping wheel (25) and the ratchet (23).

4. The automatic workpiece stacking welding machine according to claim 1, characterized in that: The workpiece B transfer and bonding mechanism (3) includes an electric rotary table (31), a suction nozzle (32), a connecting block (33), a pressing block (34), a pressing block lifting cylinder (35), a guide block one (36), an X-axis horizontal cylinder (37), a gripper (38), and a guide block two (39). Several connecting blocks (33) are evenly distributed on the side of the table of the electric rotary table (31). A suction nozzle (32) is hinged to the connecting block (33). A spring is provided between the tail end of the suction nozzle (32) and the connecting block (33). A roller is rotatably connected to the tail end of the suction nozzle (32). A connecting seat is fixed on the table of the electric rotary table (31). Several pressing block lifting cylinders (35) are distributed along the edge of the connecting seat. Each pressing block lifting cylinder... Each of the block lifting cylinders (35) has a corresponding suction nozzle (32) below it. The piston rod of the block lifting cylinder (35) is fixed with a pressure block (34) for pressing down the roller. The electric rotary table (31) has a guide block one (36) and two guide blocks two (39) on one side for guiding the position of workpiece B on the suction nozzle (32). The guide block one (36) is fixed on the piston rod of the X-axis horizontal cylinder (37). The two guide blocks two (39) are slidably connected to two non-parallel inclined surfaces. A return spring is connected between the guide block two (39) and the inclined surface. Roller one is rotatably connected to each of the two guide blocks two (39). The two roller one is located between the two fingers of the gripper (38).

5. The automatic workpiece overlapping welding machine according to claim 1, characterized in that: The workpiece horizontal conveyor (4) includes a horizontal straight flow channel (41), a pin lifting cylinder (42), a horizontal straight module (43), and a pin. The horizontal straight flow channel (41) is provided with a horizontal straight flow channel for moving the workpiece horizontally and a horizontal straight through groove for moving the pin horizontally. The horizontal straight flow channel (41) is provided below the horizontal straight flow channel (41). The pin lifting cylinder (42) is fixed on the slide of the horizontal straight module (43), and a pin is fixed on the piston rod of the pin lifting cylinder (42).

6. The automatic workpiece overlapping welding machine according to claim 1, characterized in that: The welding mechanism (5) is a laser welding machine.

7. The automatic workpiece stacking and welding machine according to claim 1, characterized in that: The workpiece horizontal conveyor table two (7) is a double belt conveyor.

8. The automatic workpiece overlapping welding machine according to claim 1, characterized in that: The workpiece handling mechanism (8) includes a multi-axis manipulator and a second suction cup, with the second suction cup mounted on the multi-axis manipulator.