A laser spot welding equipment for lithium battery cover plates

Abstract

This invention discloses a laser spot welding device for lithium battery covers, belonging to the field of lithium battery welding technology. It includes a frame and a laser spot welding mechanism. The laser spot welding mechanism is fixedly installed on the top of the frame. A receiving groove is formed on the top of the frame, and a conveying mechanism is installed within the receiving groove. An integrated clamping and sorting mechanism is installed on the top of the frame, located on the side of the conveying mechanism closest to it. A support assembly is installed on the top of the frame, located on the side of the conveying mechanism opposite to the integrated clamping and sorting mechanism. The integrated clamping and sorting mechanism can slide in contact with the bottom of the support assembly. This invention achieves automatic conveying and sorting of lithium battery covers.

Description

Technical Field

[0001] This invention relates to the field of lithium battery welding technology, and more specifically to a laser spot welding device for lithium battery cover plates. Background Technology

[0002] The lithium battery cover is a key safety component of lithium-ion batteries, such as... Figure 1 As shown, in the prior art, lithium battery cover plates typically include structures such as cover plate body, busbar, safety valve and output terminal. Among them, after the busbar is fixed to the cover plate body, the fixing of the safety valve and output terminal to the cover plate body is mostly completed by laser spot welding process. Laser spot welding has the advantages of small heat-affected zone, high welding strength and easy automation integration, and is widely used in the field of new energy battery manufacturing. For example, patent CN119870694A discloses a welding assembly for lithium battery caps. This assembly enables continuous welding of multiple lithium batteries to caps, while simultaneously clamping the lithium batteries and caps together to reduce cap detachment. It also detects the clamping tightness of the lithium batteries and caps, rejecting any loosely clamped batteries and caps. This ensures a high yield rate for lithium batteries, improves market competitiveness, avoids damage to the lithium batteries from the welding mechanism, enhances battery protection, and increases production efficiency. The welding components of the aforementioned lithium battery cap cannot automatically support and clamp the lithium battery cover plate from below when spot welding it. When there is no support below the safety valve, dents or deformations are likely to occur after welding, and it is impossible to automatically sort out unqualified lithium battery covers after welding.

[0003] Based on this, the present invention designs a laser spot welding device for lithium battery cover plates to solve the above problems. Summary of the Invention

[0004] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a laser spot welding equipment for lithium battery cover plates.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A laser spot welding device for lithium battery cover plates includes a frame and a laser spot welding mechanism, wherein the laser spot welding mechanism is fixedly installed on the top of the frame. The top of the frame is provided with a receiving slot, and a conveying mechanism is installed in the receiving slot; The top of the frame is equipped with an integrated clamping and sorting mechanism, which is located on the side of the conveying mechanism close to the laser spot welding mechanism. A support assembly is installed on the top of the frame. The support assembly is distributed on the side of the conveying mechanism away from the integrated clamping and sorting mechanism. The integrated clamping and sorting mechanism can slide in contact with the bottom of the support assembly. Furthermore, the integrated clamping and sorting mechanism includes a first telescopic cylinder, a movable frame, a guide rod, a lifting frame, a second telescopic cylinder, and an upper pressure block. The fixed end of the first telescopic cylinder is fixedly connected to the frame. The movable frame is fixedly installed at the output end of the first telescopic cylinder. A longitudinal groove is provided above the movable frame. The fixed end of the second telescopic cylinder is fixedly connected to the movable frame. The lifting frame is fixedly installed at the output end of the second telescopic cylinder. The guide rod is fixedly connected in the longitudinal groove. The lifting frame is sleeved on the surface of the guide rod. The upper pressure block is fixedly installed at the end of the lifting frame away from the guide rod. Furthermore, the conveying mechanism includes a belt, toothed grooves, limiting components, fixing pins, a drive motor, transmission gears, and rotating shafts. Both sets of rotating shafts are rotatably connected in the receiving groove. The belt has toothed grooves on its inner side. Transmission gears are fixedly installed on the rotating shafts. One end of the rotating shaft is fixedly connected to the output end of the drive motor. The drive motor is fixedly installed on the side wall of the frame. The limiting components are fixedly installed with fixing pins. The fixing pins are fixedly installed on the surface of the belt. The upper surface of the belt is not higher than the upper surface of the frame. Furthermore, the frame surface is provided with a first sliding groove and a recessed groove. The first sliding groove is located on the side of the belt near the movable frame, and the recessed groove is located on the side of the movable frame near the support assembly. The movable frame is slidably connected in the first sliding groove, and the support assembly is installed in the recessed groove. Furthermore, the integrated clamping and sorting mechanism also includes a pressure plate, one end of which is fixedly mounted on the surface of the movable frame away from the belt, and the pressure plate is distributed below the lifting frame. Furthermore, the support assembly includes a lower support block, a pressure block, a straight rod, and a spring. The lower support block and the pressure block are respectively fixedly installed at the upper and lower ends of the straight rod. The straight rod passes through the sink groove. The spring connects the frame and the pressure block. The pressure block is a wedge-shaped block. The pressure plate can slide in contact with the wedge-shaped surface of the pressure block. Furthermore, the integrated clamping and sorting mechanism also includes a pusher block, which is fixedly installed on the surface of the lifting frame, and two sets of upper pressure blocks are symmetrically distributed on both sides of the pusher block; Furthermore, a baffle and a guide structure are fixedly installed on the top of the frame. The baffle is distributed on the side of the belt near the lower support block. The baffle has a feeding port and a defective product outlet. The two sets of guide structures are respectively distributed at the feeding port and the defective product outlet away from the belt. Furthermore, the laser spot welding mechanism includes a vision inspection component, a support frame, a linear module, a welding head assembly, and an electric telescopic rod. The linear module is fixedly installed on the top of the frame, the support frame is fixedly installed on the output end of the linear module, the welding head assembly is installed on one side of the support frame, the support frame has a second sliding groove, the fixed end of the electric telescopic rod is fixedly installed inside the support frame, and the vision inspection component is fixedly installed on the output end of the electric telescopic rod. Furthermore, the limiting component is a support corner seat, with two vertical surfaces of the support corner seat intersecting perpendicularly, and the fixing pin is fixedly connected to the horizontal surface of the support corner seat.

[0006] Compared with the prior art, the beneficial effects of this invention are as follows: 1. Through the setting of the conveying mechanism, the belt provides horizontal driving force to the lithium battery cover plate through the limiting component and the busbar, thereby moving the lithium battery cover plate to below the laser spot welding mechanism. The lithium battery cover plate is fixed by the cooperation of the clamping and sorting integrated mechanism and the support component. The horizontal position of the welding head component and the vision inspection component relative to the lithium battery cover plate is adjusted by the linear module and the electric telescopic rod, respectively. When the computer system determines that the welding quality is qualified according to the image data, the belt drives the welded lithium battery cover plate to continue to move forward. When the computer system determines that the welding quality is unqualified according to the image data, the clamping and sorting integrated mechanism removes the lithium battery cover plate from the belt surface, and sorts the unqualified lithium battery cover plate to the frame surface, realizing the automatic conveying and sorting of lithium battery cover plates. 2. The present invention, through the combination of clamping and sorting integrated mechanism and support components, ensures that the lower support block is hidden in the sink in the initial state, preventing interference between the busbar and the lower support block. The moving pressure plate drives the straight rod and the lower support block to move upward a preset distance by squeezing the wedge-shaped surface at the bottom of the pressure block. The lower support block, which is lifted from the sink, is used to support the cover plate body from the bottom. The upper pressure block, together with the lower support block, can clamp the cover plate body from the upper and lower sides, preventing the problem of denting or deformation due to lack of support at the bottom when welding the safety valve, thus realizing the upper and lower clamping of the lithium battery cover plate. 3. The present invention, through the combination of clamping and sorting integrated mechanism and support components, when the computer system determines that the welding quality is unqualified based on image data, uses the first telescopic cylinder to control the moving frame to continue moving towards the belt a preset distance. Since the bottom of the pressure block is already located on the upper surface of the pressure plate, the height of the lower support block remains unchanged. The moving part pushes the lithium battery cover towards the unqualified product outlet through the cover plate body, thus realizing the automatic sorting of lithium battery cover. Attached Figure Description

[0007] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0008] Figure 1 A perspective view of a lithium battery cover in the prior art; Figure 2 This is a perspective view of a laser spot welding device for lithium battery cover plates according to the present invention; Figure 3 This is a top view of a lithium battery cover laser spot welding device according to the present invention; Figure 4 This is a perspective view of the conveying mechanism of the present invention; Figure 5 This is a perspective view of the integrated clamping and sorting mechanism of the present invention; Figure 6 This is a cross-sectional view of a lithium battery cover laser spot welding device according to the present invention; Figure 7 For the present invention Figure 6 A magnified view of a portion of point a; Figure 8 For the present invention Figure 2 A magnified view of a section at point b.

[0009] The labels in the diagram represent: 1. Frame; 11. Receiving tank; 12. Baffle; 13. Feeding port; 14. Non-conforming product outlet; 15. Guide structure; 16. First chute; 17. Settling tank; 2. Conveying mechanism; 21. Belt; 211. Toothed groove; 22. Limiting component; 221. Fixing pin; 23. Drive motor; 24. Transmission gear; 25. Rotating shaft; 3. Clamping and sorting integrated mechanism; 31. First telescopic cylinder; 32. Moving frame; 321. Longitudinal groove; 322. Guide rod; 33. Lifting mechanism Frame; 34.. Second telescopic cylinder; 35.. Upper pressure block; 36.. Pressure plate; 37.. Pusher block; 4.. Support assembly; 41.. Lower support block; 42.. Pressure bearing block; 43.. Straight rod; 44.. Spring; 5.. Lithium battery cover; 51.. Cover body; 52.. Busbar; 53.. Safety valve; 54.. Output terminal; 6.. Laser spot welding mechanism; 61.. Vision inspection assembly; 62.. Bearing frame; 621.. Second slide rail; 63.. Linear module; 64.. Welding head assembly; 65.. Electric telescopic rod. Detailed Implementation

[0010] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0011] Example 1: In some embodiments, please refer to the accompanying drawings. Figures 1-8 A laser spot welding device for lithium battery cover plates includes a frame 1 and a laser spot welding mechanism 6, wherein the laser spot welding mechanism 6 is fixedly installed on the top of the frame 1; The top of the frame 1 is provided with a receiving groove 11, and a conveying mechanism 2 is installed in the receiving groove 11; The top of the frame 1 is equipped with an integrated clamping and sorting mechanism 3, which is distributed on the side of the conveying mechanism 2 near the laser spot welding mechanism 6. The top of the frame 1 is equipped with a support component 4, which is distributed on the side of the conveying mechanism 2 away from the clamping and sorting integrated mechanism 3. The clamping and sorting integrated mechanism 3 can slide in contact with the bottom of the support component 4. The conveying mechanism 2 includes a belt 21, a toothed groove 211, a limiting member 22, a fixing pin 221, a drive motor 23, a transmission gear 24, and a rotating shaft 25. Both sets of rotating shafts 25 are rotatably connected in the receiving groove 11. The belt 21 has a toothed groove 211 on its inner side. The transmission gear 24 is fixedly installed on the rotating shaft 25 and meshes with the toothed groove 211. One end of the rotating shaft 25 is fixedly connected to the output end of the drive motor 23. The drive motor 23 is fixedly installed on the side wall of the frame 1. The limiting member 22 is fixedly installed with a fixing pin 221. The fixing pin 221 is fixedly installed on the surface of the belt 21. The upper surface of the belt 21 is not higher than the upper surface of the frame 1. The limiting component 22 is a support corner seat. The two vertical surfaces of the support corner seat intersect perpendicularly. The fixing pin 221 is fixedly connected to the horizontal surface of the support corner seat. The two vertical surfaces of the support corner seat are used to limit the lithium battery cover plate 55. The fixing pin 221 is used to connect the belt 21. The laser spot welding mechanism 6 includes a vision inspection component 61, a support frame 62, a linear module 63, a welding head assembly 64, and an electric telescopic rod 65. The linear module 63 is fixedly installed on the top of the frame 1. The support frame 62 is fixedly installed on the output end of the linear module 63. The welding head assembly 64 is installed on one side of the support frame 62. The support frame 62 has a second sliding groove 621. The fixed end of the electric telescopic rod 65 is fixedly installed inside the support frame 62. The vision inspection component 61 is fixedly installed on the output end of the electric telescopic rod 65. The linear module 63 simultaneously controls the horizontal movement of the vision inspection component 61, the support frame 62, and the welding head assembly 64. During welding, the electric telescopic rod 65 controls the vision inspection component 61 to move to... Above the lithium battery cover 5, the welding head assembly 64 is controlled by a computer system and has the functions of precise welding position positioning, automatic focus tracking, welding process protection, continuous welding of multiple welding points, and adaptive adjustment of welding parameters. Since the welding head assembly 64 is relatively mature in the existing technology, its composition and structure will not be described in detail. The vision inspection assembly 61 plays the role of online detection of welding quality. After the welding head assembly 64 completes the welding operation, the vision inspection assembly 61 collects image data of the welding area. The computer system analyzes the welding area through image processing algorithms, including: weld morphology detection, weld penetration detection, cold weld detection, and position offset detection. The computer system outputs a quality judgment signal based on the image detection results. In this embodiment, two busbars 52 below the lithium battery cover 5 are placed on the surface of the belt 21, and the cover body 51 is placed on the surface of the frame 1. Two support corner brackets are attached to the side of the busbars 52 via one vertical surface and to the side of the cover body 51 via the other vertical surface. The drive motor 23 controls the rotation of the transmission gear 24 via the rotating shaft 25. The rotating transmission gear 24 controls the movement of the belt 21 via the tooth groove 211. The center of gravity of the lithium battery cover 5 is above the frame 1. The belt 21 provides horizontal driving force to the lithium battery cover 5 through the limiting member 22 and the busbars 52, thereby moving the lithium battery cover 5 below the laser spot welding mechanism 6. The clamping and sorting integrated mechanism 3 and the support assembly 4 work together to process the lithium battery. The battery cover 5 is fixed. The horizontal position of the welding head assembly 64 and the vision inspection assembly 61 relative to the lithium battery cover 5 is adjusted by the linear module 63 and the electric telescopic rod 65, respectively. The welding head assembly 64 is used to weld the safety valve 53 and the output terminal 54. The vision inspection assembly 61 is used to collect image data after welding and upload the collected image data to the computer system. When the computer system determines that the welding quality is qualified according to the image data, the belt 21 drives the welded lithium battery cover 5 to continue to move forward. When the computer system determines that the welding quality is unqualified according to the image data, the clamping and sorting integrated mechanism 3 is used to remove the lithium battery cover 5 from the surface of the belt 21 and sort the unqualified lithium battery cover 5 to the surface of the frame 1.

[0012] Example 2: In some embodiments, such as Figures 2-8 As shown, in a preferred embodiment of the present invention, the clamping and sorting integrated mechanism 3 includes a first telescopic cylinder 31, a movable frame 32, a guide rod 322, a lifting frame 33, a second telescopic cylinder 34, an upper pressure block 35, a pressure plate 36, and a pusher block 37. The fixed end of the first telescopic cylinder 31 is fixedly connected to the frame 1. The movable frame 32 is fixedly installed at the output end of the first telescopic cylinder 31. A longitudinal groove 321 is provided above the movable frame 32. The fixed end of the second telescopic cylinder 34 is fixedly connected to the movable frame 32. The lifting frame 33 is fixedly installed at the output end of the second telescopic cylinder 34. The guide rod 322 is fixedly connected in the longitudinal groove 321. The lifting frame 33 is sleeved on the surface of the guide rod 322. The upper pressure block 35 is fixedly installed at the end of the lifting frame 33 away from the guide rod 322. The pressure plate 36 is fixedly installed on the surface of the movable frame 32 at one end away from the belt 21, and the pressure plate 36 is distributed below the lifting frame 33; The pusher block 37 is fixedly installed on the surface of the lifting frame 33, and two sets of upper pressure blocks 35 are symmetrically distributed on both sides of the pusher block 37. The frame 1 has a first sliding groove 16 and a recess 17 on its surface. The first sliding groove 16 is located on the side of the belt 21 near the movable frame 32, and the recess 17 is located on the side of the movable frame 32 near the support assembly 4. The movable frame 32 is slidably connected in the first sliding groove 16, and the support assembly 4 is installed in the recess 17. The top of the frame 1 is fixedly equipped with a baffle 12 and a guide structure 15. The baffle 12 is distributed on the side of the belt 21 near the lower support block 41. The baffle 12 has a feeding port 13 and a defective product outlet 14. The two sets of guide structures 15 are respectively distributed at the feeding port 13 and the defective product outlet 14 away from the belt 21. The cooperation between the baffle 12 and the limiting member 22 can limit the lithium battery cover 5 in the horizontal direction. The guide structure 15 consists of two sets of parallel limiting strips or limiting ribs. When feeding from the feeding port 13, the operator only needs to place the lithium battery cover 5 on the guide structure 15 and move it along the guide structure 15 to the limiting member 22 on the surface of the belt 21 through the busbar 52. The guide structure 15 plays the role of guiding the lithium battery cover 5 to move linearly. In this embodiment, when the belt 21 moves the lithium battery cover plate 5 to the position of the clamping and sorting integrated mechanism 3, the first telescopic cylinder 31 controls the moving frame 32 to move a preset distance toward the belt 21, and the second telescopic cylinder 34 controls the lifting frame 33 to descend a preset height toward the lithium battery cover plate 5, thereby pressing the upper pressure block 35 against the cover plate body 51. At this time, the pusher block 37 is distributed on the side of the cover plate body 51 near the laser spot welding mechanism 6. Once the computer system determines that the welding quality is qualified based on the image data, it uses the second telescopic cylinder 34 to control the lifting frame 33 to rise, and uses the first telescopic cylinder 31 to control the moving frame 32 to move away from the belt 21. The belt 21 drives the lithium battery cover plate 5 to continue moving forward.

[0013] Example 3: In some embodiments, such as Figures 2-8 As shown, in a preferred embodiment of the present invention, the support assembly 4 includes a lower support block 41, a pressure block 42, a straight rod 43, and a spring 44. The lower support block 41 and the pressure block 42 are respectively fixedly installed at the upper and lower ends of the straight rod 43. The straight rod 43 passes through the recess 17. The spring 44 is connected between the frame 1 and the pressure block 42. The pressure block 42 is a wedge-shaped block. The pressure plate 36 can slide in contact with the wedge-shaped surface of the pressure block 42. The side of the pressure block 42 closest to the pressure plate 36 is a wedge-shaped surface. In this embodiment, in the initial state, the downward elastic force of the spring 44 can ensure that the lower support block 41 is hidden in the sink 17, preventing the manifold 52 from interfering with the lower support block 41. The moving pressure plate 36 drives the straight rod 43 and the lower support block 41 to move upward a preset distance by squeezing the wedge-shaped surface at the bottom of the pressure block 42. The lower support block 41, which is lifted from the sink 17, is used to support the cover plate body 51 from the bottom. The upper pressure block 35, together with the lower support block 41, can clamp the cover plate body 51 from the upper and lower sides, preventing the safety valve 53 from denting or deforming due to lack of support below when welding. When the computer system determines that the welding quality is unqualified based on the image data, the first telescopic cylinder 31 controls the moving frame 32 to continue moving a preset distance toward the belt 21. Since the bottom of the pressure block 42 is already located on the upper surface of the pressure plate 36, the height of the lower support block 41 remains unchanged. The moving pusher block 37 pushes the lithium battery cover 5 toward the defective product outlet 14 through the cover body 51. After the lithium battery cover 5 moves out of the defective product outlet 14, the busbar 52 can move above the guide structure 15. In the design of the guide structure 15, the length of the guide structure 15 can be appropriately extended. The guide structure 15 limits the lithium battery cover 5 through the busbar 52. When the number of lithium battery cover 5 is greater than 2, it can ensure that they are neatly placed on the frame 1, which is convenient for the staff to organize.

[0014] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A laser spot welding device for lithium battery cover plates, comprising a frame (1) and a laser spot welding mechanism (6), wherein the laser spot welding mechanism (6) is fixedly installed on the top of the frame (1), characterized in that: The top of the frame (1) is provided with a receiving groove (11), and a conveying mechanism (2) is installed in the receiving groove (11). The frame (1) is equipped with a clamping and sorting integrated mechanism (3) on its top. The clamping and sorting integrated mechanism (3) is distributed on the side of the conveying mechanism (2) near the laser spot welding mechanism (6). The frame (1) is equipped with a support component (4) on top. The support component (4) is distributed on the side of the conveying mechanism (2) away from the clamping and sorting integrated mechanism (3). The clamping and sorting integrated mechanism (3) can slide in contact with the bottom of the support component (4).

2. The lithium battery cover laser spot welding equipment according to claim 1, characterized in that, The clamping and sorting integrated mechanism (3) includes a first telescopic cylinder (31), a moving frame (32), a guide rod (322), a lifting frame (33), a second telescopic cylinder (34), and an upper pressure block (35). The fixed end of the first telescopic cylinder (31) is fixedly connected to the frame (1). The moving frame (32) is fixedly installed at the output end of the first telescopic cylinder (31). A longitudinal groove (321) is provided above the moving frame (32). The fixed end of the second telescopic cylinder (34) is fixedly connected to the moving frame (32). The lifting frame (33) is fixedly installed at the output end of the second telescopic cylinder (34). The guide rod (322) is fixedly connected in the longitudinal groove (321). The lifting frame (33) is sleeved on the surface of the guide rod (322). The upper pressure block (35) is fixedly installed at the end of the lifting frame (33) away from the guide rod (322).

3. The lithium battery cover laser spot welding equipment according to claim 2, characterized in that, The conveying mechanism (2) includes a belt (21), a toothed groove (211), a limiting member (22), a fixing pin (221), a drive motor (23), a transmission gear (24), and a rotating shaft (25). Both sets of rotating shafts (25) are rotatably connected in the receiving groove (11). The belt (21) has a toothed groove (211) on its inner side. The rotating shaft (25) is fixedly mounted with a transmission gear (24). One end of the rotating shaft (25) is fixedly connected to the output end of the drive motor (23). The drive motor (23) is fixedly mounted on the side wall of the frame (1). The limiting member (22) is fixedly mounted with a fixing pin (221). The fixing pin (221) is fixedly mounted on the surface of the belt (21). The upper surface of the belt (21) is not higher than the upper surface of the frame (1).

4. The lithium battery cover laser spot welding equipment according to claim 3, characterized in that, The frame (1) has a first sliding groove (16) and a recess (17) on its surface. The first sliding groove (16) is located on the side of the belt (21) near the moving frame (32), and the recess (17) is located on the side of the moving frame (32) near the support assembly (4). The moving frame (32) is slidably connected in the first sliding groove (16), and the support assembly (4) is installed in the recess (17).

5. The lithium battery cover laser spot welding equipment according to claim 4, characterized in that, The clamping and sorting integrated mechanism (3) also includes a pressure plate (36), one end of which is fixedly installed on the surface of the moving frame (32) away from the belt (21), and the pressure plate (36) is distributed below the lifting frame (33).

6. The lithium battery cover laser spot welding equipment according to claim 5, characterized in that, The support assembly (4) includes a lower support block (41), a pressure block (42), a straight rod (43), and a spring (44). The lower support block (41) and the pressure block (42) are respectively fixedly installed at the upper and lower ends of the straight rod (43). The straight rod (43) passes through the sinker (17). The spring (44) is connected between the frame (1) and the pressure block (42). The pressure block (42) is a wedge-shaped block. The pressure plate (36) can slide in contact with the wedge-shaped surface of the pressure block (42).

7. The lithium battery cover laser spot welding equipment according to claim 6, characterized in that, The clamping and sorting integrated mechanism (3) also includes a pusher block (37), which is fixedly installed on the surface of the lifting frame (33) above the pusher block (37), and two sets of upper pressure blocks (35) are symmetrically distributed on both sides of the pusher block (37).

8. The lithium battery cover laser spot welding equipment according to claim 7, characterized in that, The top of the frame (1) is fixedly equipped with a baffle (12) and a guide structure (15). The baffle (12) is distributed on the side of the belt (21) near the lower support block (41). The baffle (12) has a feeding port (13) and a defective product outlet (14). The two sets of guide structures (15) are respectively distributed at the positions of the feeding port (13) and the defective product outlet (14) away from the belt (21).

9. The lithium battery cover laser spot welding equipment according to claim 1, characterized in that, The laser spot welding mechanism (6) includes a vision inspection component (61), a support frame (62), a linear module (63), a welding head assembly (64), and an electric telescopic rod (65). The linear module (63) is fixedly installed on the top of the frame (1). The support frame (62) is fixedly installed on the output end of the linear module (63). The welding head assembly (64) is installed on one side of the support frame (62). The support frame (62) has a second sliding groove (621). The fixed end of the electric telescopic rod (65) is fixedly installed inside the support frame (62). The vision inspection component (61) is fixedly installed on the output end of the electric telescopic rod (65).

10. The lithium battery cover laser spot welding equipment according to claim 3, characterized in that, The limiting member (22) is a support corner seat, the two vertical surfaces of the support corner seat intersect perpendicularly, and the fixing pin (221) is fixedly connected to the horizontal surface of the support corner seat.

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