Pressure head tool for laser welding of square battery cell module

Abstract

The invention discloses a head pressing tool for laser welding of a square battery cell module, and relates to the technical field of electronic manufacturing and laser machining, the head pressing tool comprises a base, an output groove is formed in the top of the base, a groove is formed in the top of the base, and a limiting groove is formed in the top of the base; a pressure head device, a clamping device and an auxiliary device are arranged at the top of the base, automatic input is achieved through the pressure head device, it can be guaranteed that the positions and the directions of all modules are consistent in the production process, personal errors are reduced, the consistency and the quality of products are improved, and in the laser welding or other machining processes, the production efficiency is improved. The module may be affected by heat, pressure or mechanical force, if the upper portion is not fixed, the module may move or vibrate, poor welding or mismatching of parts may be caused, the movement can be reduced through upper portion fixing, and the stability of the machining process is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of electronic manufacturing and laser processing, and in particular to a pressing head tooling for laser welding of square electric core modules. Background Art

[0002] Laser welding is a high-precision, high-efficiency welding technology that uses a laser beam to heat and melt materials to achieve welding. When laser welding square cell modules, it is necessary to ensure precise alignment and stability of the welding area.

[0003] The patent with the patent announcement number CN209773757U relates to the field of electronic manufacturing and laser processing technology. The patent provides a press head tooling for laser welding of square battery cell modules, including a press plate, on which two wedge-shaped holes with rectangular cross sections are symmetrically arranged along the transverse center line of the press plate; two pressure strips symmetrically arranged along the transverse center line of the wedge-shaped holes are fixedly connected to the bottom surface of the press plate, and each pressure strip has a plurality of wedge blocks evenly distributed along the length direction of the pressure strip, and the pressure strip and the wedge blocks are made of glass fiber; a pressure head fixed to the pressure strip and in a right-angle trapezoid is provided between the wedge block and the adjacent wedge block, and the pressure head is made of metal. The patent can press a row of battery cell poles by two rows of pressure heads arranged oppositely under the two pressure strips, complete the one-time press-fitting of the aluminum row of the battery module into place, ensure uniform force, thereby solving the problem of gaps between the aluminum row and the battery cell poles, and improving welding efficiency and welding effect.

[0004] In the above patent, uniform force is ensured to solve the problem of gap between the aluminum bar and the battery cell pole, thereby improving welding efficiency and welding effect. However, the current measuring equipment has the following problems: if the pressure head is not fixed, the battery cell module may be displaced or rotated during the laser welding process, resulting in inaccurate welding points, affecting welding quality and battery performance, and manually adding battery cell modules will increase the workload of operators and may also lead to increased product inconsistency. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a press head tooling for laser welding of square battery core modules, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a pressure head tooling for laser welding of square battery core modules, comprising a base, an output slot is provided on the top of the base, a groove is provided on the top of the base, a limit slot is provided on the top of the base, and a pressure head device, a clamping device and an auxiliary device are arranged on the top of the base; wherein, the pressure head device comprises a fixed column, a slide block, a pressure frame, a rocker, a sliding block, a pressure block, a placement frame and a rotating motor, the fixed column is fixedly installed on the top of the base, the slide block is fixedly installed on the top of the base, and the pressure frame is rotatably installed On the outer wall of the fixed column, one side of the rocker is rotatably installed inside the pressure frame, the sliding block is slidably installed on the inner wall of the slide block, and the other side of the rocker is rotatably installed on the inner wall of the sliding block. The pressure block is fixedly installed on the bottom of the pressure frame, and the placement frame is fixedly installed on the top of the base. The rotating motor is fixedly installed on the right side of the base, and the placement frame is connected to the groove. By manually pressing the rocker down, the rocker will drive the sliding block to move along the inner wall of the slide block. When the sliding block moves to the maximum distance, the pressure frame will rotate downward, and the rotation of the pressure frame will drive the pressure block to move, and the pressure block will press the top of the module.

[0007] According to the above technical solution, the pressure head device also includes a rotating shaft, a track, a push block, a pulley shaft and a short rod. The rotating shaft is fixedly installed at the output end of the rotating motor, and the rotating shaft rotates to penetrate the inner and outer walls of the base. The track is arranged on the circumferential surface of the rotating shaft, and the push block is fixedly installed on the circumferential surface of the track. The pulley shaft is arranged on the top of the base, and the short rod is fixedly installed on the rear side of the pressure frame. By placing the module into the placement frame, the rotating motor rotates to drive the rotating shaft to rotate, and the rotating shaft rotates to drive the track. The rotation of the track drives the push block to rotate. The rotation of the push block will contact the module so that the module moves backward through the push block. During the movement of the module, it will contact the pulley shaft so that the pulley shaft rotates and drives the module until it stops moving.

[0008] According to the above technical solution, the clamping device includes a stop block, a clamping block, a round block, a fixed cylinder and a No. 1 spring. The stop block is slidably installed on the inner wall of the base, the clamping block is rotatably installed on the inner wall of the base, the round block is fixedly installed on the rear side of the stop block, and the fixed cylinder is fixedly installed on the front side of the base. The No. 1 spring is arranged between the base and the round block. A No. 1 torsion spring is arranged between the clamping block and the base. When the module moves, it will contact the stop block to make the stop block move backward. When the stop block moves, its inclined surface will contact the clamping block to make the clamping block rotate downward to clamp the module.

[0009] According to the above technical solution, the clamping device also includes a push rod, a fixed block one and a fixed block two. The push rod is fixedly installed on the top of the clamping block, the fixed block one is fixedly installed on the top of the base, and the fixed block two is fixedly installed on the top of the base. When the short rod is reset, it will contact the push rod to make the push rod move upward. The movement of the push rod drives the clamping block to release and reset through the No. 1 torsion spring. At this time, the clamping block loses its clamping of the module.

[0010] According to the above technical solution, the clamping device also includes a slide plate, a pressure plate and a rotating rod. The slide plate is slidably installed on the top of the base, the pressure plate is slidably installed on the top of the base, one side of the rotating rod rotates to penetrate the inner and outer walls of the fixed block, and the other side of the rotating rod is fixedly installed on the right side of the pressure plate. The rotating rod rotates to penetrate the inner and outer walls of the slide plate, and a spiral groove is opened on the circumferential surface of the rotating rod. The fixed block is threadedly connected to the spiral groove, and the spiral groove is driven to rotate by rotating the rotating rod, and the rotation of the spiral groove causes the rotating rod to move to the left.

[0011] According to the above technical scheme, the auxiliary device includes a cylinder, a No. 2 spring, a touch rod, a limit block and a triangular block. One side of the cylinder is fixedly installed on the right side of the pressure plate, and the other side of the cylinder slides through the inner and outer walls of the skateboard. The No. 2 spring is arranged between the skateboard and the pressure plate, one side of the touch rod is fixedly installed on the right side of the pressure plate, and the other side of the touch rod slides through the skateboard. The limit block is slidably installed on the right side of the skateboard, and the triangular block is fixedly installed in the limit slot. A No. 3 spring is arranged between the limit block and the skateboard. When the clamping force is too large, the pressure plate will move to the right, and the No. 2 spring will be compressed at this time, and the touch rod will be driven to move at the same time. The movement of the touch rod will contact the limit block to make the limit block move downward. The limit block moves downward and is inserted into the limit slot. At this time, the skateboard cannot continue to move.

[0012] According to the above technical solution, the auxiliary device also includes a telescopic rod, an output plate and an L-shaped block, the fixed end of the telescopic rod is fixedly mounted on the inner wall of the output slot, the output plate is rotatably mounted on the inner wall of the output slot, the output end of the telescopic rod is fixedly mounted on the bottom of the output plate, and the L-shaped block is fixedly mounted on the bottom of the pressure plate. The module is placed through the output plate, and the L-shaped block supports the output plate. When the clamping is completed and the module needs to be released, the pressure plate moves to the right to drive the L-shaped block to move. At this time, the output plate is pressed down by the weight of the module, and the output plate is pressed down to drive the output end of the telescopic rod to contract. At this time, the module is output through the output plate.

[0013] According to the above technical solution, a No. 2 torsion spring is arranged between the output plate and the output slot, and the No. 2 torsion spring drives the output plate to reset, and the L-shaped block contacts the output plate.

[0014] The present invention provides a press head tooling for laser welding of square battery core modules. It has the following beneficial effects: (1) The invention, through the setting of the pressure head device, places the module into the placement rack, and drives the rotating shaft to rotate through the rotating motor to cooperate with the crawler to rotate the push block and contact the module to move the module backward. During the movement of the module, it will contact the pulley shaft to rotate and drive the module until it stops moving. Through automated input, it can ensure that the position and direction of each module in the production process are consistent, reduce human errors, and improve product consistency and quality. At this time, by manually pressing down the rocker, the rocker will drive the sliding block to move along the inner wall of the slide block. When the sliding block moves to the maximum distance, the pressure frame will rotate downward. The rotation of the pressure frame drives the pressure block to move, and the pressure block will press the top of the module. During laser welding or other processing, the module may be affected by heat, pressure or mechanical force. If the top is not fixed, the module may move or vibrate, which may cause poor welding or component mismatch. Fixing the top can reduce this movement and ensure the stability of the processing process.

[0015] (2) The invention, through the setting of the clamping device, when the module moves, it will contact the stop block, causing the stop block to move backward. When the stop block moves, its inclined surface will contact the clamping block, causing the clamping block to rotate downward to clamp the module. The clamping can prevent the module from moving or vibrating during operation, thereby improving the stability and consistency of processing or welding. When the stop block moves, it will drive the round block to move. The movement of the round block will squeeze the No. 1 spring to play a buffering role, preventing the module from being damaged by the vibration caused by excessive contact between the module and the stop block. When the pressure head is not needed, the reset rocker will drive the pressure frame to reset, and the reset of the pressure frame will drive the short rod to reset. The reset of the short rod will contact the stop rod, causing the stop rod to move upward. The movement of the stop rod drives the clamping block to release and reset through the No. 1 torsion spring. At this time, the clamping block loses its clamping of the module. (3) The invention, through the setting of the auxiliary device, drives the spiral groove to rotate by rotating the rotating rod to cooperate with the rotating rod, the sliding plate, the touch rod and the pressure plate to clamp the module. When the clamping force is too large, the pressure plate will move to the right. The second spring, the touch rod, the limit block and the limit groove prevent the sliding plate from moving further, which can effectively improve the safety and prevent the risk of pinching that may occur during operation. This not only protects the safety of the staff, but also helps to maintain the normal operation of the equipment and avoid damage to the battery module or performance degradation caused by pinching. At this time, the limit block moves to the right to touch the triangular block so that the limit block moves upward and is reset by the third spring. At this time, the sliding plate is free from the limit of the limit block and can move freely. When the clamping is completed and the module needs to be released, the output plate is pressed down by the weight of the pressure plate, the L-shaped block and the module. The downward pressure of the output plate drives the output end of the telescopic rod to contract. At this time, the module is output through the output plate, and the output plate is reset by the second torsion spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the rotating motor and the base position of the present invention; Figure 3 It is a schematic diagram of the structure of the pressure head device of the present invention; Figure 4 It is a schematic diagram of the placement structure of the rack and the push block of the present invention; Figure 5 This is a schematic diagram of the short rod and the support rod position structure of the present invention; Figure 6 This is a schematic diagram of the position structure of the blocking block and the clamping block of the present invention; Figure 7 It is a partial cross-sectional schematic diagram of the clamping device of the present invention; Figure 8 This is a schematic diagram of the position structure of the triangular block and the limiting groove of the present invention; Fig. 9 It is a schematic diagram of the position structure of the L-shaped block and the output plate of the present invention.

[0017] In the figure: 1, base; 10, fixed column; 11, slide block; 12, pressure frame; 13, rocker; 14, sliding block; 15, pressure block; 16, placement frame; 17, rotating motor; 18, rotating shaft; 19, crawler; 110, push block; 111, pulley shaft; 112, short rod; 20, stop block; 21, clamping block; 22, round block; 23, fixed cylinder; 24, spring No. 1; 25, stop rod; 26, fixed block No. 1; 27, fixed block No. 2; 28, slide plate; 29, pressure plate; 210, rotating rod; 31, spring No. 2; 32, touch rod; 33, limit block; 34, triangle block; 35, telescopic rod; 36, output plate; 37, L-shaped block. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] See also Figure 1-Figure 5One embodiment of the present invention is: a press head tooling for laser welding of square electric core modules, comprising a base 1, an output slot is provided on the top of the base 1, a groove is provided on the top of the base 1, a limit slot is provided on the top of the base 1, a press head device is provided on the top of the base 1, and the press head device comprises a fixed column 10, a slide block 11, a pressure frame 12, a rocker 13, a sliding block 14, a press block 15, a placement frame 16 and a rotating motor 17, the fixed column 10 is fixedly installed on the top of the base 1, the slide block 11 is fixedly installed on the top of the base 1, and the pressure frame 12 is rotatably installed on the fixed column 1 0's outer wall, one side of the rocker 13 is rotatably mounted inside the pressure frame 12, the sliding block 14 is slidably mounted on the inner wall of the slide block 11, the other side of the rocker 13 is rotatably mounted on the inner wall of the sliding block 14, the pressure block 15 is fixedly mounted on the bottom of the pressure frame 12, the placement frame 16 is fixedly mounted on the top of the base 1, the rotating motor 17 is fixedly mounted on the right side of the base 1, the placement frame 16 is connected to the groove, if the top is not fixed, the module may move or vibrate, which may cause poor welding or component mismatch, and the top fixation can reduce this movement and ensure the stability of the processing process.

[0020] The pressure head device also includes a rotating shaft 18, a track 19, a push block 110, a pulley shaft 111 and a short rod 112. The rotating shaft 18 is fixedly installed at the output end of the rotating motor 17. The rotating shaft 18 rotates and passes through the inner and outer walls of the base 1. The track 19 is arranged on the circumferential surface of the rotating shaft 18, the push block 110 is fixedly installed on the circumferential surface of the track 19, the pulley shaft 111 is arranged on the top of the base 1, and the short rod 112 is fixedly installed on the rear side of the pressure frame 12. Through automated input, the position and direction of each module in the production process can be ensured to be consistent, thereby reducing human errors and improving product consistency and quality.

[0021] When the present embodiment is working, the module is placed in the placement rack 16, and the rotating motor 17 is rotated to drive the rotating shaft 18 to rotate. The rotating shaft 18 rotates to drive the crawler 19, and the crawler 19 rotates to drive the push block 110 to rotate. The push block 110 rotates and contacts the module, so that the module moves backward through the push block 110. During the movement of the module, it contacts the pulley shaft 111, so that the pulley shaft 111 rotates and drives the module until it stops moving. Through automated input, the position and direction of each module in the production process can be ensured to be consistent, thereby reducing human errors and improving the consistency and quality of the product. At this time, through Manually press down the rocker 13, and the rocker 13 will drive the sliding block 14 to move along the inner wall of the slide block 11. When the sliding block 14 moves to the maximum distance, the pressure frame 12 will rotate downward, and the rotation of the pressure frame 12 will drive the pressure block 15 to move, and the pressure block 15 will press the top of the module. During laser welding or other processing, the module may be affected by heat, pressure or mechanical force. If the top is not fixed, the module may move or vibrate, which may cause poor welding or component mismatch. Fixing the top can reduce this movement and ensure the stability of the processing process.

[0022] See also Figure 1-Figure 9 On the basis of the above embodiment, in another embodiment of the present invention, a clamping device and an auxiliary device are provided on the top of the base 1, and the clamping device includes a stop block 20, a clamping block 21, a round block 22, a fixing tube 23 and a No. 1 spring 24. The stop block 20 is slidably mounted on the inner wall of the base 1, the clamping block 21 is rotatably mounted on the inner wall of the base 1, the round block 22 is fixedly mounted on the rear side of the stop block 20, and the fixing tube 23 is fixedly mounted on the front side of the base 1. The No. 1 spring 24 is arranged between the base 1 and the round block 22, and the movement of the round hole 22 is buffered by the arranged No. 1 spring 24. A No. 1 torsion spring is arranged between the clamping block 21 and the base 1, and the No. 1 torsion spring is arranged to drive the clamping block 21 to reset.

[0023] The clamping device also includes a push rod 25, a fixed block 1 26 and a fixed block 27. The push rod 25 is fixedly installed on the top of the clamping block 21, the fixed block 1 26 is fixedly installed on the top of the base 1, and the fixed block 27 is fixedly installed on the top of the base 1. The spiral groove is driven to rotate by rotating the rotating rod 210, and the rotation of the spiral groove causes the rotating rod 210 to move to the left.

[0024] The clamping device also includes a slide plate 28, a pressure plate 29 and a rotating rod 210. The slide plate 28 is slidably installed on the top of the base 1, and the pressure plate 29 is slidably installed on the top of the base 1. One side of the rotating rod 210 rotates to penetrate the inner and outer walls of the fixed block 26, and the other side of the rotating rod 210 is fixedly installed on the right side of the pressure plate 29. The rotating rod 210 rotates to penetrate the inner and outer walls of the slide plate 28. A spiral groove is opened on the circumferential surface of the rotating rod 210, and the fixed block 26 is threadedly connected to the spiral groove. The clamping can prevent the module from moving or vibrating during operation, thereby improving the stability and consistency of processing or welding.

[0025] The auxiliary device includes a cylinder 30, a No. 2 spring 31, a touch rod 32, a limit block 33 and a triangular block 34. One side of the cylinder 30 is fixedly installed on the right side of the pressure plate 29, and the other side of the cylinder 30 slides through the inner and outer walls of the slide plate 28. The No. 2 spring 31 is arranged between the slide plate 28 and the pressure plate 29. The No. 2 spring 31 has a buffering effect on the movement of the pressure plate 29. One side of the touch rod 32 is fixedly installed on the right side of the pressure plate 29, and the other side of the touch rod 32 slides through the slide plate 28. The limit block 33 is slidably installed on the right side of the slide plate 28. The triangular block 34 is fixedly installed in the limit groove. A No. 3 spring is arranged between the limit block 33 and the slide plate 28, and the limit block 33 is reset by the No. 3 spring.

[0026] The auxiliary device also includes a telescopic rod 35, an output plate 36 and an L-shaped block 37. The fixed end of the telescopic rod 35 is fixedly mounted on the inner wall of the output slot, the output plate 36 is rotatably mounted on the inner wall of the output slot, the output end of the telescopic rod 35 is fixedly mounted on the bottom of the output plate 36, and the L-shaped block 37 is fixedly mounted on the bottom of the pressing plate 29. When the clamping is completed and the module needs to be released, the pressing plate 29 moves to the right to drive the L-shaped block 37 to move. At this time, the output plate 36 is pressed down by the weight of the module, and the output plate 36 is pressed down to drive the output end of the telescopic rod 35 to contract. At this time, the module is output through the output plate 36.

[0027] A No. 2 torsion spring is provided between the output plate 36 and the output slot. The No. 2 torsion spring drives the output plate 36 to return to its original position, and the L-shaped block 37 contacts the output plate 36 .

[0028] When the embodiment is working, when the module moves, it will contact the blocking block 20, causing the blocking block 20 to move backward. When the blocking block 20 moves, its inclined surface will contact the clamping block 21, causing the clamping block 21 to rotate downward to clamp the module. The clamping can prevent the module from moving or vibrating during operation, thereby improving the stability and consistency of processing or welding. When the blocking block 20 moves, it will drive the round block 22 to move. The movement of the round block 22 will squeeze the No. 1 spring 24 to play a buffering role, preventing the module from being damaged by the vibration caused by the excessive force of the contact between the module and the blocking block 20. When the pressure head is not needed The pressure frame 12 is reset by resetting the rocker 13, and the short rod 112 is reset by resetting the pressure frame 12. The reset of the short rod 112 will contact the push rod 25 to make the push rod 25 move upward. The movement of the push rod 25 drives the clamping block 21 to release and reset through the first torsion spring. At this time, the clamping block 21 loses its clamping of the module, and the spiral groove is rotated by rotating the rotating rod 210. The rotation of the spiral groove makes the rotating rod 210 move to the left. The rotation of the rotating rod 210 drives the slide plate 28 to move to the left, and at the same time drives the pressure plate 29 to move. The movement of the pressure plate 29 will contact the module to achieve clamping of the side of the module; When the clamping force is too great, the pressure plate 29 will be forced to move to the right, at which time the second spring 31 will be compressed, and the pressure plate 29 will drive the touch rod 32 to move. The movement of the touch rod 32 will contact the limit block 33, causing the limit block 33 to move downward. The limit block 33 moves downward and is inserted into the limit groove. At this time, the slide plate 28 cannot move further, which can effectively improve safety and prevent the risk of pinching that may occur during operation. This not only protects the safety of the staff, but also helps to maintain the normal operation of the equipment and avoid damage to the battery module or performance degradation caused by pinching. At this time, the limit block 33 The triangular block 34 is moved to the right to touch the limit block 33 so that the limit block 33 moves upward and is reset by the No. 3 spring. At this time, the slide plate 28 is free from the limit of the limit block 33 and can move freely. The module is placed by the output plate 36, and the L-shaped block 37 supports the output plate 36. When the clamping is completed and the module needs to be released, the pressure plate 29 is moved to the right to drive the L-shaped block 37 to move. At this time, the output plate 36 is pressed down by the weight of the module, and the output plate 36 is pressed down to drive the output end of the telescopic rod 35 to retract. At this time, the module is output through the output plate 36, and the output plate 36 is reset by the No. 2 torsion spring.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A press head tool for laser welding of square battery module, comprising a base (1), characterized in that: An output slot is provided on the top of the base (1), a groove is provided on the top of the base (1), a limit slot is provided on the top of the base (1), and a pressure head device, a clamping device and an auxiliary device are provided on the top of the base (1); The pressure head device comprises a fixed column (10), a slide block (11), a pressure frame (12), a rocker (13), a sliding block (14), a pressure block (15), a placement frame (16) and a rotating motor (17), wherein the fixed column (10) is fixedly mounted on the top of the base (1), the slide block (11) is fixedly mounted on the top of the base (1), the pressure frame (12) is rotatably mounted on the outer wall of the fixed column (10), one side of the rocker (13) is rotatably mounted inside the pressure frame (12), the sliding block (14) is slidably mounted on the inner wall of the slide block (11), the other side of the rocker (13) is rotatably mounted on the inner wall of the sliding block (14), the pressure block (15) is fixedly mounted on the bottom of the pressure frame (12), the placement frame (16) is fixedly mounted on the top of the base (1), the rotating motor (17) is fixedly mounted on the right side of the base (1), and the placement frame (16) is connected to the groove.

2. The press head tooling for laser welding of square battery core modules according to claim 1, characterized in that: The pressure head device also includes a rotating shaft (18), a crawler (19), a push block (110), a pulley shaft (111) and a short rod (112), wherein the rotating shaft (18) is fixedly mounted on the output end of the rotating motor (17), the rotating shaft (18) rotates through the inner and outer walls of the base (1), the crawler (19) is arranged on the circumferential surface of the rotating shaft (18), the push block (110) is fixedly mounted on the circumferential surface of the crawler (19), the pulley shaft (111) is arranged on the top of the base (1), and the short rod (112) is fixedly mounted on the rear side of the pressure frame (12).

3. The press head tooling for laser welding of square battery core modules according to claim 2, characterized in that: The clamping device comprises a stop block (20), a clamping block (21), a round block (22), a fixing tube (23) and a first spring (24); the stop block (20) is slidably mounted on the inner wall of the base (1); the clamping block (21) is rotatably mounted on the inner wall of the base (1); the round block (22) is fixedly mounted on the rear side of the stop block (20); the fixing tube (23) is fixedly mounted on the front side of the base (1); the first spring (24) is arranged between the base (1) and the round block (22); and a first torsion spring is arranged between the clamping block (21) and the base (1).

4. The press head tooling for laser welding of square battery module according to claim 3 is characterized in that: The clamping device further comprises a support rod (25), a first fixing block (26) and a second fixing block (27), wherein the support rod (25) is fixedly mounted on the top of the clamping block (21), the first fixing block (26) is fixedly mounted on the top of the base (1), and the second fixing block (27) is fixedly mounted on the top of the base (1).

5. The press head tooling for laser welding of square battery module according to claim 4, characterized in that: The clamping device further comprises a slide plate (28), a pressure plate (29) and a rotating rod (210), wherein the slide plate (28) is slidably mounted on the top of the base (1), the pressure plate (29) is slidably mounted on the top of the base (1), one side of the rotating rod (210) rotates to penetrate the inner and outer walls of a fixed block (26), and the other side of the rotating rod (210) is fixedly mounted on the right side of the pressure plate (29), the rotating rod (210) rotates to penetrate the inner and outer walls of the slide plate (28), a spiral groove is provided on the circumferential surface of the rotating rod (210), and the fixed block (26) is threadedly connected to the spiral groove.

6. The press head tooling for laser welding of square battery module according to claim 5, characterized in that: The auxiliary device comprises a cylinder (30), a No. 2 spring (31), a touch rod (32), a limit block (33) and a triangular block (34); one side of the cylinder (30) is fixedly mounted on the right side of the pressure plate (29); the other side of the cylinder (30) slides through the inner and outer walls of the slide plate (28); the No. 2 spring (31) is arranged between the slide plate (28) and the pressure plate (29); one side of the touch rod (32) is fixedly mounted on the right side of the pressure plate (29); the other side of the touch rod (32) slides through the slide plate (28); the limit block (33) is slidably mounted on the right side of the slide plate (28); the triangular block (34) is fixedly mounted in the limit slot; and a No. 3 spring is arranged between the limit block (33) and the slide plate (28).

7. The press head tooling for laser welding of square battery core modules according to claim 6, characterized in that: The auxiliary device further comprises a telescopic rod (35), an output plate (36) and an L-shaped block (37); the fixed end of the telescopic rod (35) is fixedly mounted on the inner wall of the output slot; the output plate (36) is rotatably mounted on the inner wall of the output slot; the output end of the telescopic rod (35) is fixedly mounted on the bottom of the output plate (36); and the L-shaped block (37) is fixedly mounted on the bottom of the pressing plate (29).

8. The press head tooling for laser welding of square battery core modules according to claim 7, characterized in that: A No. 2 torsion spring is provided between the output plate (36) and the output slot, and the L-shaped block (37) is in contact with the output plate (36).

Images