Lithium battery laser welding device

Abstract

The utility model provides a lithium battery laser welding device and relates to the technical field of lithium batteries. Comprising a conveying table, a welding bin is fixedly connected to the middle of the outer wall of the conveying table, a lithium battery containing table is fixedly connected to the top of the conveying table, a welding gun transmission table is fixedly connected to the inner wall of the welding bin, the welding gun transmission table comprises a transmission bottom table, and the rear side of the transmission bottom table is fixedly connected to the rear side of the inner wall of the welding bin; according to the scheme, a double-shaft motor, a top transmission plate motor, a motor and a welding gun main body are matched, so that the problem that the welding guns of most laser welding devices are generally arranged in a welding bin, and the welding gun main body is not arranged in the welding bin is solved. In the prior art, the position of a welding gun can be adjusted only by simple left-right transverse movement, and during front-back or up-down adjustment, a laser welding device cannot meet the requirements of a user, the position of the welding gun cannot be freely moved, and flexibility is not enough.

Description

Technical Field

[0001] The utility model relates to a lithium battery laser welding device, in particular to a lithium battery laser welding device, and belongs to the technical field of lithium batteries. Background Art

[0002] Lithium batteries are a type of battery that uses lithium metal or lithium alloy as positive / negative electrode materials and non-aqueous electrolyte solutions. In 1912, lithium metal batteries were first proposed and studied by Gilbert N. Lewis. In the 1970s, MS Whittingham proposed and began to study lithium-ion batteries. Due to the very active chemical properties of lithium metal, the processing, storage, and use of lithium metal have very high environmental requirements. With the development of science and technology, lithium batteries have become mainstream.

[0003] Existing patent application number CN214721437U This utility model relates to the field of lithium battery technology, which includes a bottom plate, two guide plates arranged on the bottom plate, two vertical plates respectively arranged on the outside of the two guide plates, lifting rails respectively arranged vertically on the outside of the vertical plates, L-shaped lifting plates respectively slidingly matched with the lifting rails, lifting cylinders respectively driving the lifting of the L-shaped lifting plates, mounting plates respectively arranged on the two L-shaped lifting plates, first and second pressing claw groups respectively arranged on the mounting plates, a first connecting plate of insulating material arranged between the mounting plate and the L-shaped lifting plate, two second connecting plates connected to the two ends of the two mounting plates, and a pushing mechanism arranged at one end of the two guide plates. It can be used for welding single-row lithium batteries, with strong applicability. The first connecting plate plays an insulating role for the lithium battery to avoid product damage caused by short circuit; the pressure of the first and second pressing claw groups is different, so that nickel sheets and batteries of different heights can be firmly pressed without gaps.

[0004] Most of the existing lithium battery laser welding devices weld lithium batteries half by welding guns; however, the welding guns of most of the existing laser welding devices are generally set inside the welding chamber, and can only be simply moved left and right to adjust the position of the welding gun. When forward and backward or up and down adjustment is required, the laser welding device cannot meet the needs of users, and the position of the welding gun cannot be moved at will, which is not flexible enough. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] The purpose of the present utility model is to provide a lithium battery laser welding device in order to solve the above-mentioned problem, so as to solve the problem that the welding gun of most laser welding devices in the prior art is generally arranged inside the welding chamber, and can only be simply moved left and right to adjust the position of the welding gun. When front and back or up and down adjustment is required, the laser welding device cannot meet the needs of the user and the position of the welding gun cannot be moved at will, which leads to insufficient flexibility.

[0007] (II) Technical solution

[0008] The utility model is realized through the following technical scheme: a lithium battery laser welding device.

[0009] It includes a conveying table, a welding bin is fixedly connected to the middle of the outer wall of the conveying table, a lithium battery placement table is fixedly connected to the top of the conveying table, a welding gun transmission table is fixedly connected to the inner wall of the welding bin, the welding gun transmission table includes a transmission base, the rear side of the transmission base is fixedly connected to the rear side of the inner wall of the welding bin, the top of the transmission base is movably connected to a transverse transmission table, and the front side of the transverse transmission table is movably connected to a welding gun.

[0010] Preferably, the lithium battery placement table includes a lithium battery placement table body, the top of the lithium battery placement table body is fixedly connected to a rotating shaft, the top of the rotating shaft is rotatably connected to an internal gear, the bottom of the inner wall of the lithium battery placement table body is fixedly connected to a gear motor, the output end of the gear motor extends to the outer wall of the lithium battery placement table body and is fixedly connected to a gear, the outer wall of the gear meshes with the inner wall of the internal gear, and a plurality of turntables are fixedly connected to the top annular array of the internal gears, and the left and right sides of the inner walls of the plurality of turntables are respectively fixedly connected to lithium battery fixing frames.

[0011] Preferably, the lithium battery fixing frame includes a fixing frame rotating shaft, and the inner wall of one side of the fixing frame rotating shaft is rotatably connected to two fixing frame rotating rods, the two fixing frame rotating rods are rotatably connected to a slider on one side away from the fixing frame rotating shaft, the two sliders are slidably connected to a fixing plate on one side away from the fixing frame rotating rod, and the opposite sides of the two fixing frame rotating rods are fixedly connected to a spring.

[0012] Preferably, the transmission base includes a base shell, and the left and right sides of the base shell are respectively fixedly connected with the front and rear transmission plates, and the middle part of the inner wall of the base shell is fixedly connected with a dual-axis motor, and the left and right output ends of the dual-axis motor respectively penetrate the inner walls of the front and rear transmission plates on both sides and are fixedly connected with conical teeth, and the two sides of the conical teeth away from the dual-axis motor are meshed with second conical teeth, and the inner walls of the two second conical teeth are fixedly connected with screws, and the front ends of the two screws are movably connected to the front sides of the inner walls of the front and rear transmission plates.

[0013] Preferably, the transverse transmission platform includes a transverse transmission platform housing, and bottom transmission blocks are fixedly connected to the left and right sides of the bottom of the transverse transmission platform housing respectively, the outer walls of the two bottom transmission blocks are slidably connected to the inner walls of the front and rear transmission plates, the inner walls of the two bottom transmission blocks are threadedly connected to the outer walls of the screw rod, the front side of the transverse transmission platform housing is fixedly connected to a front slide plate, the top of the transverse transmission platform housing is fixedly connected to a top transmission plate, a transmission groove is provided on the front side of the top transmission plate, a top transmission plate motor is fixedly connected to the left side of the inner wall of the top transmission plate, a second screw rod is fixedly connected to the output end of the top transmission plate motor, and the right end of the second screw rod is movably connected to the right side of the inner wall of the top transmission plate.

[0014] Preferably, the welding gun includes a welding lifting block, the top of the welding lifting block is fixedly connected to a welding gun moving slide, the rear side of the welding lifting block is slidably connected to the front side of the front slide, the rear side of the welding gun moving slide extends to the inner wall of the top transmission plate through a transmission groove opened on the front side of the top transmission plate and the bottom is fixedly connected to a welding gun transmission block, the inner wall of the welding gun transmission block is threadedly connected to the outer wall of the second screw rod, and the rear outer wall of the welding gun moving slide is movably connected to the inner wall of the top transmission plate.

[0015] Preferably, the bottom of the inner wall of the welding lifting block is fixedly connected to a welding gun motor placement block, the inner wall of the welding gun motor placement block is fixedly connected to a motor, the output end of the motor passes through the outer wall of the welding gun motor placement block and is fixedly connected to a third screw rod, the top of the third screw rod is movably connected to the top of the inner wall of the welding lifting block, the outer wall of the third screw rod is threadedly connected to the welding gun lifting transmission block, the top of the welding gun lifting transmission block is fixedly connected to a push-pull rod connecting block, the front inner wall of the push-pull rod connecting block is slidably connected to a lifting slide bar, the top and bottom of the lifting slide bar are fixedly connected to the inner wall of the welding lifting block, the rear bottom of the push-pull rod connecting block is fixedly connected to a push-pull rod, the bottom of the push-pull rod passes through the outer wall of the welding lifting block and is fixedly connected to a welding gun fixing frame connecting plate, the front side of the welding gun fixing frame connecting plate is fixedly connected to the welding gun fixing frame, and the inner wall of the welding gun fixing frame is fixedly connected to the welding gun body.

[0016] The utility model provides a lithium battery laser welding device, which has the following beneficial effects:

[0017] 1. The lithium battery laser welding device can fix the lithium battery on the top of the turntable to prevent the lithium battery from shifting during the welding process, thereby causing the lithium battery welding position to be incorrect and affecting the subsequent use of the lithium battery.

[0018] 2. The lithium battery laser welding device has multiple turntables on the top of the inner gear. The multiple turntables can fix multiple lithium batteries on the top of the turntable through the lithium battery fixing frame. Multiple lithium batteries can be welded at one time. There is no need to remove the welded lithium battery after welding one and then place the unwelded lithium battery for re-fixing, which solves the problem of affecting welding efficiency and being troublesome.

[0019] 3. When the welding gun body needs to be moved forward and backward, the lithium battery laser welding device starts the dual-axis motor to make the bottom transmission block drive the horizontal transmission platform shell to move forward and backward on the inner walls of the front and rear transmission plates. When horizontal movement is required, the top transmission plate motor is started to drive the welding lifting block to move horizontally on the front side of the front slide. When lifting, the welding gun body is driven downward by starting the motor. This solves the problem that the welding gun of most laser welding devices is generally set inside the welding bin and can only be simply moved left and right to adjust the position of the welding gun. When forward and backward or up and down adjustment is required, the laser welding device cannot meet the needs of users and cannot move the welding gun at will. The position flexibility is not enough. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the main three-dimensional structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the three-dimensional structure of the lithium battery placement table of the utility model;

[0022] Figure 3 This is a schematic diagram of the three-dimensional structure of the lithium battery fixing frame of the utility model;

[0023] Figure 4 This is a schematic diagram of the three-dimensional structure of the welding gun transmission platform of the utility model;

[0024] Figure 5 It is a three-dimensional cross-sectional structural schematic diagram of the transmission base of the utility model;

[0025] Figure 6 It is a three-dimensional cross-sectional structural schematic diagram of the transverse transmission platform of the utility model;

[0026] Figure 7 It is a schematic diagram of a three-dimensional sectional structure of a welding gun of the present utility model.

[0027]

Main component symbol description

[0028] 1. Conveying platform; 2. Lithium battery placement platform; 21. Lithium battery placement platform body; 22. Gear motor; 23. Rotating shaft; 24. Internal gear; 25. Gear; 26. Turntable; 27. Lithium battery fixing frame; 271. Fixing frame rotating shaft; 272. Fixing frame rotating rod; 273. Spring; 274. Sliding block; 275. Fixing plate; 3. Welding chamber; 4. Welding gun transmission platform; 41. Transmission base; 411. Base shell; 412. Dual-axis motor; 414. Conical teeth; 415. Second conical teeth; 416. Screw; 417. Front and rear transmission plates; 42. Horizontal transmission platform; 421. Horizontal transmission platform Casing; 422, bottom transmission block; 423, front slide; 424, top transmission plate; 425, transmission slot; 426, top transmission plate motor; 427, second screw rod; 43, welding gun; 431, welding lifting block; 432, welding gun moving slide; 433, welding gun transmission block; 434, welding gun motor placement block; 435, motor; 436, third screw rod; 437, welding gun lifting transmission block; 438, lifting slide rod; 439, push-pull rod connecting block; 4310, push-pull rod; 4311, welding gun fixing frame connecting plate; 4312, welding gun fixing frame; 4313, welding gun body. DETAILED DESCRIPTION

[0029] The utility model embodiment provides a lithium battery laser welding device.

[0030] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 A welding bin 3 is fixedly connected to the middle of the outer wall of the conveying table 1, a lithium battery placement table 2 is fixedly connected to the top of the conveying table 1, a welding gun transmission platform 4 is fixedly connected to the inner wall of the welding bin 3, and the welding gun transmission platform 4 includes a transmission base 41, the rear side of the transmission base 41 is fixedly connected to the rear side of the inner wall of the welding bin 3, the top of the transmission base 41 is movably connected to a transverse transmission platform 42, and the front side of the transverse transmission platform 42 is movably connected to a welding gun 43.

[0031] When the utility model is in use: first, multiple lithium batteries are placed on the top of the lithium battery placement table 2, and the multiple lithium batteries are fixed by the top of the lithium battery placement table 2, and the lithium battery placement table 2 is transferred to the inside of the welding bin 3 by the transfer table 1, and then the lithium batteries fixed on the top of the lithium battery placement table 2 are welded by the welding gun transmission table 4 on the inner wall of the welding bin 3. The welding gun transmission table 4 can adjust the position of the front side according to the needs of the user. When one of the lithium batteries on the top of the lithium battery placement table 2 is welded, the top of the lithium battery placement table 2 is driven to rotate by starting the bottom inner wall of the lithium battery placement table 2, so that the other lithium battery is aligned with the front bottom of the welding gun transmission table 4, and welding continues.

[0032] Please refer again Figure 2 , Figure 3 The lithium battery placement table 2 includes a lithium battery placement table body 21, a rotating shaft 23 is fixedly connected to the top of the lithium battery placement table body 21, an internal gear 24 is rotatably connected to the top of the rotating shaft 23, a gear motor 22 is fixedly connected to the bottom of the inner wall of the lithium battery placement table body 21, an output end of the gear motor 22 extends to the outer wall of the lithium battery placement table body 21 and is fixedly connected to a gear 25, the outer wall of the gear 25 meshes with the inner wall of the internal gear 24, and a plurality of turntables 26 are fixedly connected to the top annular array of the internal gear 24, The left and right sides of the inner walls of the multiple turntables 26 are respectively fixedly connected with lithium battery fixing frames 27, and the lithium battery fixing frames 27 include a fixing frame rotating shaft 271. Two fixing frame rotating rods 272 are rotatably connected to the inner wall of one side of the fixing frame rotating shaft 271. The two fixing frame rotating rods 272 are rotatably connected to the sides away from the fixing frame rotating shaft 271. Slide blocks 274 are rotatably connected to the sides of the two sliders 274 away from the fixing frame rotating rods 272. Springs 273 are fixedly connected to the opposite sides of the two fixing frame rotating rods 272.

[0033] When the utility model is used, firstly, a plurality of lithium batteries are fixed by a plurality of turntables 26 fixed on the top of the inner gear 24. When the lithium batteries are fixed, firstly, the fixing plates 275 on both sides are pulled. After the fixing plates 275 are pulled, they are squeezed toward one side of the fixing frame rotating shaft 271 to rotate the fixing frame rotating rod 272 and pull the spring 273. At the same time, the slider 274 slides on one side of the fixing plate 275. After being pulled to a width suitable for the bottom of the lithium battery, the lithium battery is placed on the opposite side of the two fixing plates 275 on the top of the turntable 26. The fixing plates 275 are loosened, and the spring 273 is restored. The bottom of the lithium battery can be clamped by the fixing plate 275, so that the lithium battery can be fixed on the top of the turntable 26. After welding a lithium battery, the gear motor 22 is started to drive the internal gear 24 to rotate, and the lithium battery fixing frame 27 rotates to drive the turntable 26 to rotate, and drives the lithium battery fixed on the turntable 26 to rotate to the welding position, and the lithium battery is welded. Multiple lithium batteries can be welded at one time, and there is no need to remove the welded lithium battery after welding one and then place the unwelded lithium battery for re-fixing, which solves the problem of affecting welding efficiency and being relatively troublesome.

[0034] Please refer again Figure 4 , Figure 5 , Figure 6 and Figure 7The transmission base 41 includes a base shell 411, and the left and right sides of the base shell 411 are respectively fixedly connected with front and rear transmission plates 417, and the middle part of the inner wall of the base shell 411 is fixedly connected with a dual-axis motor 412, and the left and right output ends of the dual-axis motor 412 respectively penetrate the inner walls of the front and rear transmission plates 417 on both sides and are fixedly connected with conical teeth 414, and the two conical teeth 414 are meshed with second conical teeth 415 on the sides away from the dual-axis motor 412, and the inner walls of the two second conical teeth 415 are fixedly connected with screw rods 416, and the front ends of the two screw rods 416 are movably connected to the front sides of the inner walls of the front and rear transmission plates 417, and the horizontal transmission platform 42 includes a horizontal transmission platform shell 421, and the left and right sides of the bottom of the horizontal transmission platform shell 421 are respectively fixedly connected with bottom Transmission block 422, the outer walls of the two bottom transmission blocks 422 are slidably connected to the inner walls of the front and rear transmission plates 417, the inner walls of the two bottom transmission blocks 422 are threadedly connected to the outer walls of the screw rod 416, the front side of the horizontal transmission platform shell 421 is fixedly connected with a front slide plate 423, the top of the horizontal transmission platform shell 421 is fixedly connected with a top transmission plate 424, the front side of the top transmission plate 424 is provided with a transmission groove 425, the left side of the inner wall of the top transmission plate 424 is fixedly connected with a top transmission plate motor 426, the output end of the top transmission plate motor 426 is fixedly connected with a second screw rod 427, the right end of the second screw rod 427 is movably connected to the right side of the inner wall of the top transmission plate 424, the welding gun 43 includes a welding lifting block 431, the top of the welding lifting block 431 is fixedly connected with a welding The gun moving slide plate 432 and the rear side of the welding lifting block 431 are slidably connected to the front side of the front slide plate 423, the rear side of the welding gun moving slide plate 432 extends to the inner wall of the top transmission plate 424 through the transmission groove 425 opened on the front side of the top transmission plate 424 and is fixedly connected to the welding gun transmission block 433 at the bottom, the inner wall of the welding gun transmission block 433 is threadedly connected to the outer wall of the second screw rod 427, the rear outer wall of the welding gun moving slide plate 432 is movably connected to the inner wall of the top transmission plate 424, the bottom of the inner wall of the welding lifting block 431 is fixedly connected to the welding gun motor placement block 434, the inner wall of the welding gun motor placement block 434 is fixedly connected to the motor 435, and the output end of the motor 435 passes through the outer wall of the welding gun motor placement block 434 and is fixedly connected to the third screw rod 427. Rod 436, the top of the third screw rod 436 is movably connected to the top of the inner wall of the welding lifting block 431, the outer wall of the third screw rod 436 is threadedly connected to the welding gun lifting transmission block 437, the top of the welding gun lifting transmission block 437 is fixedly connected to the push-pull rod connecting block 439, the front inner wall of the push-pull rod connecting block 439 is slidably connected to the lifting slide bar 438, the top and bottom of the lifting slide bar 438 are fixedly connected to the inner wall of the welding lifting block 431, the rear bottom of the push-pull rod connecting block 439 is fixedly connected to the push-pull rod 4310, the bottom of the push-pull rod 4310 penetrates the outer wall of the welding lifting block 431 and is fixedly connected to the welding gun fixing frame connecting plate 4311, and the front side of the welding gun fixing frame connecting plate 4311 is fixedly connected to the welding gun fixing frame 4312,The inner wall of the welding gun fixing frame 4312 is fixedly connected with the welding gun body 4313.

[0035] When the utility model is in use: when it is necessary to move the welding gun body 4313 forward and backward, the double-axis motor 412 is started. After the double-axis motor 412 is started, the cone-shaped teeth 414 at both ends of the transmission rotate to drive the second cone-shaped teeth 415 to rotate. The rotation of the second cone-shaped teeth 415 drives the screw rod 416 to rotate, so that the bottom transmission block 422 drives the horizontal transmission platform shell 421 to move forward and backward on the inner wall of the front and rear transmission plates 417. When it is necessary to move horizontally, the top transmission plate motor 426 inside the top transmission plate 424 is started. After the top transmission plate motor 426 is started, the second screw rod 427 is driven to rotate, and the second The screw rod 427 drives the welding gun transmission block 433 to drive the welding gun moving slide 432 to move the welding lifting block 431. The welding lifting block 431 moves laterally on the front side of the front slide 423. When the welding gun body 4313 needs to be lifted or lowered, the third screw rod 436 is driven to rotate by starting the motor 435. After the third screw rod 436 rotates, the welding gun lifting transmission block 437 drives the push-pull rod connecting block 439 to move downward. The push-pull rod connecting block 439 drives the push-pull rod 4310 to move downward, thereby driving the welding gun body 4313 fixed inside the welding gun fixing frame 4312 to move downward.

[0036] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A lithium battery laser welding device, comprising a conveyor table (1), characterized in that: A welding bin (3) is fixedly connected to the middle of the outer wall of the conveying platform (1), a lithium battery placement platform (2) is fixedly connected to the top of the conveying platform (1), and a welding gun transmission platform (4) is fixedly connected to the inner wall of the welding bin (3); The welding gun transmission platform (4) comprises a transmission base (41), the rear side of the transmission base (41) is fixedly connected to the rear side of the inner wall of the welding bin (3), the top of the transmission base (41) is movably connected to a transverse transmission platform (42), and the front side of the transverse transmission platform (42) is movably connected to a welding gun (43).

2. The lithium battery laser welding device according to claim 1, characterized in that: The lithium battery placement table (2) comprises a lithium battery placement table body (21), the top of the lithium battery placement table body (21) is fixedly connected to a rotating shaft (23), the top of the rotating shaft (23) is rotatably connected to an internal gear (24), the bottom of the inner wall of the lithium battery placement table body (21) is fixedly connected to a gear motor (22), the output end of the gear motor (22) extends to the outer wall of the lithium battery placement table body (21) and is fixedly connected to a gear (25), the outer wall of the gear (25) meshes with the inner wall of the internal gear (24), a plurality of turntables (26) are fixedly connected to the top of the internal gear (24) in an annular array, and the left and right sides of the inner walls of the plurality of turntables (26) are respectively fixedly connected to lithium battery fixing frames (27).

3. The lithium battery laser welding device according to claim 2, characterized in that: The lithium battery fixing frame (27) comprises a fixing frame rotating shaft (271), one side inner wall of the fixing frame rotating shaft (271) is rotatably connected to two fixing frame rotating rods (272), the sides of the two fixing frame rotating rods (272) away from the fixing frame rotating shaft (271) are both rotatably connected to sliders (274), the sides of the two sliders (274) away from the fixing frame rotating rods (272) are slidably connected to fixing plates (275), and opposite surfaces of the two fixing frame rotating rods (272) are fixedly connected to springs (273).

4. The lithium battery laser welding device according to claim 1, characterized in that: The transmission base (41) comprises a base shell (411), the left and right sides of the base shell (411) are respectively fixedly connected to front and rear transmission plates (417), the middle part of the inner wall of the base shell (411) is fixedly connected to a dual-axis motor (412), the left and right output ends of the dual-axis motor (412) respectively penetrate the inner walls of the front and rear transmission plates (417) on both sides and are fixedly connected to conical teeth (414), the sides of the two conical teeth (414) away from the dual-axis motor (412) are both meshed with second conical teeth (415), the inner walls of the two second conical teeth (415) are both fixedly connected to screw rods (416), and the front ends of the two screw rods (416) are both movably connected to the front sides of the inner walls of the front and rear transmission plates (417).

5. The lithium battery laser welding device according to claim 4, characterized in that: The transverse transmission platform (42) comprises a transverse transmission platform housing (421), the left and right sides of the bottom of the transverse transmission platform housing (421) are respectively fixedly connected with bottom transmission blocks (422), the outer walls of the two bottom transmission blocks (422) are slidably connected to the inner walls of the front and rear transmission plates (417), the inner walls of the two bottom transmission blocks (422) are threadedly connected to the outer walls of the screw rod (416), the front side of the transverse transmission platform housing (421) is fixedly connected with a front slide plate (423), the top of the transverse transmission platform housing (421) is fixedly connected with a top transmission plate (424), the front side of the top transmission plate (424) is provided with a transmission groove (425), the left side of the inner wall of the top transmission plate (424) is fixedly connected with a top transmission plate motor (426), the output end of the top transmission plate motor (426) is fixedly connected with a second screw rod (427), and the right end of the second screw rod (427) is movably connected to the right side of the inner wall of the top transmission plate (424).

6. The lithium battery laser welding device according to claim 5, characterized in that: The welding gun (43) comprises a welding lifting block (431), the top of which is fixedly connected to a welding gun moving slide plate (432), the rear side of the welding lifting block (431) is slidably connected to the front side of the front slide plate (423), the rear side of the welding gun moving slide plate (432) extends to the inner wall of the top transmission plate (424) through a transmission groove (425) provided on the front side of the top transmission plate (424) and the bottom is fixedly connected to a welding gun transmission block (433), the inner wall of the welding gun transmission block (433) is threadedly connected to the outer wall of the second screw rod (427), and the rear outer wall of the welding gun moving slide plate (432) is movably connected to the inner wall of the top transmission plate (424).

7. The lithium battery laser welding device according to claim 6, characterized in that: The bottom of the inner wall of the welding lifting block (431) is fixedly connected to a welding gun motor placement block (434), the inner wall of the welding gun motor placement block (434) is fixedly connected to a motor (435), the output end of the motor (435) passes through the outer wall of the welding gun motor placement block (434) and is fixedly connected to a third screw rod (436), the top of the third screw rod (436) is movably connected to the top of the inner wall of the welding lifting block (431), the outer wall of the third screw rod (436) is threadedly connected to a welding gun lifting transmission block (437), the top of the welding gun lifting transmission block (437) is fixedly connected to a push-pull rod connection block (439), and the push-pull rod The front inner wall of the connecting block (439) is slidably connected to a lifting slide bar (438), the top and bottom of the lifting slide bar (438) are fixedly connected to the inner wall of the welding lifting block (431), the rear bottom of the push-pull rod connecting block (439) is fixedly connected to a push-pull rod (4310), the bottom of the push-pull rod (4310) passes through the bottom of the outer wall of the welding lifting block (431) and is fixedly connected to a welding gun fixing frame connecting plate (4311), the front side of the welding gun fixing frame connecting plate (4311) is fixedly connected to a welding gun fixing frame (4312), and the inner wall of the welding gun fixing frame (4312) is fixedly connected to a welding gun body (4313).

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