A welding apparatus and method for processing a micro battery case

Abstract

The application belongs to the technical field of welding equipment, and particularly relates to a welding equipment and method for micro battery shell processing. The metal substrate is not effectively fixed at both ends, and is a thin-walled material, so that the end part is prone to warping deformation due to the influence of welding heat input, and further causes misalignment of end part welding. The present application proposes the following scheme, which comprises a welding base, a bending welding frame is arranged on the welding base, and a die disc seat is arranged on the bending welding frame. The welding equipment and method for micro battery shell processing has the effect of improving the forming quality of the weld. When welding the battery shell frame, the device can avoid welding misalignment by combining the elasticity of the metal substrate with active limiting, and can improve the rigid constraint of the thin-walled material welding area by adopting a wrapping type fixation preheating, effectively suppress the warping deformation, reduce the thermal gradient and thermal stress in the thin-walled material, and reduce the welding risk.

Description

Technical Field

[0001] This invention relates to the field of welding equipment technology, and in particular to a welding equipment and method for processing micro battery casings. Background Technology

[0002] Miniature battery cases are widely used in products such as smartwatches and smart glasses. Currently, miniature battery cases are usually made of stainless steel and formed in one piece through a stamping process. Due to the limitations of the stamping process, the corners of the battery case inevitably form a rounded structure (i.e., R-corners). These rounded corners occupy part of the internal space of the battery case, resulting in a reduction in effective volume and limiting further increases in battery capacity. In order to reduce the overall weight of the battery, some designs have tried to use lightweight metals such as aluminum or titanium. However, the thin-wall welding process of aluminum and titanium is difficult, and traditional stamping processes are also difficult to directly form right-angle corner structures. Therefore, there are currently no miniature battery cases made of aluminum or titanium on the market.

[0003] The mainstream welding technology for micro battery casings relies on the manufacturing of metal cutting and welding equipment such as automatic and semi-automatic electric arc and plasma arc welding machines, as well as intelligent welding systems. Intelligent welding systems integrate visual positioning, penetration depth monitoring, and adaptive adjustment of welding parameters, which can significantly improve the mass production yield and overall life cycle reliability of micro battery casings.

[0004] Existing micro battery casings require folding and pressing during welding. However, after folding and pressing, the two ends of the metal substrate of the casing frame are not effectively fixed. Furthermore, since the metal substrate is a thin-walled material, it is prone to warping deformation at the ends due to the influence of welding heat input during welding, which can further lead to misalignment of the end welds and thus affect the welding quality. Summary of the Invention

[0005] This invention discloses a welding device and method for processing micro battery casings, aiming to solve the technical problem in the background art where the two ends of the metal substrate are not effectively fixed, and because the metal substrate is a thin-walled material, the ends are easily warped due to the influence of welding heat input, which further leads to misalignment of the end welding.

[0006] The present invention discloses a welding device for processing micro battery casings, comprising: A welding base is provided, and a bending and welding frame is provided on the welding base. A mold plate seat is provided on the bending and welding frame, and a fixed mold is provided on the mold plate seat. Multiple telescopic mold rods are provided on the mold plate base, and the multiple telescopic mold rods are respectively located on both sides of the fixed mold; A side mold is provided on a mold plate base, and the side mold is located below the fixed mold. The thermosetting welding unit is mounted on a bending welding frame. The thermosetting welding unit includes a welding gun, a preheating strip, and two end plates. The welding gun is located below the side mold.

[0007] In a preferred embodiment, the thermosetting welding unit further includes: The mounting base is set on the bending and welding frame. A linear screw is set inside the mounting base. The linear screw and the mounting base are set on the same movable guide block. The welding gun is set on the movable guide block. A drive motor is mounted on a mounting base, and the output shaft of the drive motor is connected to one end of a linear lead screw via a coupling. A fixed frame is mounted on the welding gun, and two shaft members are mounted on the fixed frame.

[0008] In a preferred embodiment, the thermosetting welding unit further includes: A connecting frame is mounted on two shaft members, one of which has a driven gear at one end. A general-purpose motor is mounted on a fixed frame. The output shaft of the general-purpose motor is connected to a driving gear via a coupling, and the driving gear meshes with the driven gear.

[0009] In a preferred embodiment, the thermosetting welding unit further includes: The outer frame of the housing is mounted on the connecting frame. A cover frame panel is mounted on the outer frame of the housing, and two mounting shafts are mounted on the cover frame panel. Tropical reel, the tropical reel is mounted on one of the mounting shafts; The guide wheel is mounted on another mounting shaft. The preheating tape is mounted on the heat reel and the guide wheel. One end of the preheating tape is mounted on the outer frame of the housing.

[0010] In a preferred embodiment, the thermosetting welding unit further includes: A servo motor is mounted on the cover frame panel, and the output shaft of the servo motor is mounted on one end of one of the mounting shafts via a coupling. A heating element is disposed on the outer frame of the housing. The heating element is provided with two heating guide wires, both of which are disposed inside the preheating zone. A welding joint is provided on the preheating zone.

[0011] In a preferred embodiment, the thermosetting welding unit further includes: Two rotating shafts are provided on the cover frame panel, and the two end plate folding plates are respectively provided on the two rotating shafts; A bracket is mounted on the cover frame panel. A fixed motor is mounted on the bracket. The output shaft of the fixed motor is connected to a drive gear via a coupling. Both the drive gear and one of the rotating shafts are equipped with a linkage wheel. The two linkage wheels are equipped with the same drive belt. A gear component is mounted on another rotating shaft and meshes with a drive gear.

[0012] In a preferred embodiment, it also includes: Multiple bending drive mechanisms are mounted on the mold plate base; A fixed bending component is provided on one of the bending drive mechanisms. The fixed bending component is located above the fixed mold. The other bending drive mechanisms are respectively provided with an upper bending component one, an upper bending component two, a side bending component one, a side bending component two, an end bending component one, and an end bending component two. The frame guide is set on the welding base and the bending welding frame.

[0013] In a preferred embodiment, it also includes: A fixed guide rail is provided on a welding base. Two fixed welding seats are provided on the fixed guide rail, and each of the two fixed welding seats is provided with a telescopic mechanism. Multiple welding guns are respectively installed on the output ends of two telescopic mechanisms; Two panel welding stations are provided, both of which are set on a welding base. The welding base has an installation cavity, and a drive motor is installed inside the installation cavity. The output shaft of the drive motor is connected to the bottom of one of the panel welding stations through a coupling. The linkage belt is set on two panel welding stations.

[0014] In a preferred embodiment, it also includes: A pre-welding mold is provided on one of the panel welding stations, and a full-welding mold is provided on the other panel welding station. The motion guide rail is set on the welding base. Two motion bases are set on the motion guide rail. Each of the two motion bases is equipped with an operating robotic arm. The two operating robotic arms are respectively equipped with an adsorption end and a pickup end.

[0015] A welding method for processing a micro battery casing, using a welding device for processing a micro battery casing as described above, includes the following steps: Step 1: The metal substrate of the shell frame is set at the bending part. At this time, the bending drive mechanism runs to drive multiple bending parts to bend the metal substrate until the battery shell frame is bent and formed. Step 2: Frame welding. The thermosetting welding unit is in operation. The outer frame of the housing is set outside the battery housing frame. The battery housing frame is fixed and preheated by the shrinkage of the preheating tape. Then, the end welding of the battery housing frame is completed by the welding gun. Step 3: After welding, the telescopic mold rod will remove the frame from the bent part and guide it to the welding base platform by the frame guide frame; Step 4: Panel welding. At this time, the robotic arm is operated to place the battery case frame and frame panel on the pre-welding mold, and transfer the workpiece that has been pre-welded to the full welding mold in preparation for pre-welding and full welding. Step 5: The welding gun is driven by the telescopic mechanism to perform welding, while the drive motor and the linkage belt drive the panel welding station to rotate until the panel welding is completed.

[0016] As can be seen from the above, the welding equipment for processing micro battery shells provided by the present invention has the effect of improving the quality of weld formation. When welding the battery shell frame, the device can avoid welding misalignment by combining the elasticity of the metal substrate itself with active limiting. At the same time, the wrapping type fixed preheating is adopted to improve the rigidity constraint of the welding area of ​​thin-walled material, effectively suppress warping deformation, reduce the thermal gradient and thermal stress inside the thin-walled material, and reduce welding risk. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a welding device for processing a miniature battery casing proposed in this invention; Figure 2 This is a top view schematic diagram of the overall structure of a welding equipment for processing a miniature battery casing proposed in this invention; Figure 3 This is a schematic diagram of the combined structure of the bending welding frame and the frame guide frame of the welding equipment for processing micro battery casings proposed in this invention; Figure 4 This is a schematic diagram of the thermosetting welding unit structure of a welding equipment for processing micro battery casings proposed in this invention; Figure 5 This is a schematic diagram of the combined structure of a linear lead screw and welding gun for a welding device used in the processing of micro battery casings, as proposed in this invention. Figure 6 This is a schematic diagram of the combined structure of the outer frame and preheating zone of a welding equipment for processing micro battery casings according to the present invention; Figure 7 This is a schematic diagram of the combined structure of the heating guide wire and the end plate of the welding equipment for processing micro battery casings proposed in this invention; Figure 8 This is a schematic diagram of the combined structure of the panel welding station and drive motor of a welding equipment for processing micro battery casings proposed in this invention; Figure 9This is a schematic diagram of the combined structure of a pre-welding mold and a full-welding mold for a welding equipment for processing micro battery casings proposed in this invention; Figure 10 This is a schematic diagram of the robotic arm structure of a welding equipment for processing micro battery casings proposed in this invention.

[0018] In the diagram: 1. Welding base; 2. Motion guide rail; 3. Bending and welding frame; 4. Thermosetting welding unit; 401. Shaft; 402. Mounting base; 403. Movable guide block; 404. Linear lead screw; 405. Drive motor; 406. Welding gun; 407. Connecting frame; 408. Driven gear; 409. Fixed frame; 410. General motor; 411. Cover frame panel; 412. Outer shell frame; 413. Drive gear; 414. Preheating heat strip; 415. Mounting shaft; 416. Heat strip reel; 417. Servo motor; 418. Drive belt; 419. Linkage wheel; 420. Guide wheel; 421. Heating guide wire; 422. Rotating shaft; 423. End folding plate; 424. Heating element; 425. 426. Gear components; 427. Drive gear; 428. Fixed motor; 429. Support components; 5. Fixed guide rail; 6. Telescopic mechanism; 7. Fixed welding seat; 8. Panel welding station; 9. Frame guide frame; 10. Upper bending component one; 11. Fixed bending component; 12. Bending drive mechanism; 13. Upper bending component two; 14. Side bending component one; 15. End bending component one; 16. Side bending component two; 17. Mold plate base; 18. Telescopic mold rod; 19. Fixed mold; 20. Side end mold; 21. Drive motor; 22. Operating robotic arm; 23. Linkage belt; 24. Pre-welding mold; 25. Welding gun; 26. Full welding mold; 27. Motion base; 28. Adsorption end; 29. ​​Pick-up end; 30. End bending component two. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0020] The welding equipment for processing micro battery casings disclosed in this invention is mainly used in scenarios where the two ends of a metal substrate are not effectively fixed, and because the metal substrate is a thin-walled material, the ends are prone to warping deformation due to the influence of welding heat input, which may further lead to misalignment of the end welding.

[0021] Reference Figures 1-10 A welding device for processing miniature battery casings, comprising: Welding base 1, a bending and welding frame 3 is provided on the welding base 1, a mold plate seat 17 is provided on the bending and welding frame 3, and a fixed mold 19 is provided on the mold plate seat 17. Multiple telescopic mold rods 18 are provided on the mold plate base 17, and the multiple telescopic mold rods 18 are located on both sides of the fixed mold 19. Side mold 20 is disposed on mold plate base 17 and is located below fixed mold 19; The thermosetting welding unit 4 is mounted on the bending and welding frame 3. The thermosetting welding unit 4 includes a welding gun 406, a preheating strip 414 and two end plates 423. The welding gun 406 is located below the side mold 20.

[0022] Reference Figure 1 and Figures 3-7 In a preferred embodiment, the thermosetting welding unit 4 further includes: Mounting base 402 is mounted on bending and welding frame 3. A linear screw 404 is provided inside the mounting base 402. The linear screw 404 and the mounting base 402 are provided with the same movable guide block 403. Welding gun 406 is mounted on the movable guide block 403. A drive motor 405 is mounted on a mounting base 402, and the output shaft of the drive motor 405 is connected to one end of a linear lead screw 404 via a coupling. A fixed frame 409 is provided on the welding gun 406, and two shaft members 401 are provided on the fixed frame 409.

[0023] In this invention, the thermosetting welding unit 4 further includes: A connecting frame 407 is mounted on two shaft members 401, one end of which is provided with a driven gear 408. A general-purpose motor 410 is mounted on a fixed frame 409. The output shaft of the general-purpose motor 410 is connected to a drive gear 413 via a coupling. The drive gear 413 meshes with the driven gear 408.

[0024] In this invention, the thermosetting welding unit 4 further includes: The outer frame 412 is mounted on the connecting frame 407. A cover panel 411 is mounted on the outer frame 412. Two mounting shafts 415 are mounted on the cover panel 411. Tropical reel 416, which is mounted on one of the mounting shafts 415; Guide wheel component 420 is mounted on another mounting shaft 415. Preheating tape 414 is mounted on the heat roll 416 and guide wheel component 420. One end of preheating tape 414 is mounted on the outer frame 412 of the housing.

[0025] In this invention, the thermosetting welding unit 4 further includes: Servo motor 417 is mounted on cover panel 411. The output shaft of servo motor 417 is mounted on one end of one of the mounting shafts 415 via a coupling. Heating element 424 is disposed on the outer frame 412 of the housing. Two heating guide wires 421 are disposed on the heating element 424. Both heating guide wires 421 are disposed inside the preheating zone 414. Welding joints are provided on the preheating zone 414.

[0026] In this invention, the thermosetting welding unit 4 further includes: Two rotating shafts 422 are both mounted on the cover frame panel 411, and two end plate folding plates are respectively mounted on the two rotating shafts 422; A bracket 428 is mounted on the cover frame panel 411. A fixed motor 427 is mounted on the bracket 428. The output shaft of the fixed motor 427 is connected to a drive gear 426 via a coupling. Both the drive gear 426 and one of the rotating shafts 422 are equipped with a linkage wheel 419. The two linkage wheels 419 are equipped with the same drive belt 418. Gear component 425 is mounted on another rotating shaft 422 and meshes with drive gear 426.

[0027] Specifically, during frame welding, the bent part is reset under the drive of the bending drive mechanism 12. At this time, the drive motor 405 runs, and the drive motor 405 drives the linear lead screw 404 to rotate, which in turn causes the linear lead screw 404 to drive the movable guide block 403 to rise, thereby causing the movable guide block 403 to drive the welding gun part 406 to rise to the welding position in preparation for welding. During preheating and fixing, the general-purpose motor 410 operates, driving the drive gear 413 to rotate. Since the drive gear 413 meshes with the driven gear 408, the general-purpose motor 410 can drive the shaft 401 and connecting frame 407 to rotate, further driving the outer frame 412 to rotate, so that the outer frame 412 fits onto the outer edge of the battery casing frame. At this time, the servo motor 417 operates, driving the heat exchange roller 416 to rotate, causing the heat exchange roller 416 to tighten the preheating heat strip 414, so that the preheating heat strip 414 gradually contacts the outer wall of the battery casing frame during tightening, and as it tightens, it fixes the battery casing frame onto the telescopic mold rod 18, the fixing mold 19, and the side mold 20, preventing it from shifting. Simultaneously, during fixing, due to the side… The bottom of the end mold 20 has a concave feature, and due to the elasticity of the metal at the end of the frame, the end of the frame is slightly spread outward. At this time, the fixed motor 427 can drive the drive gear 426 to rotate, and in conjunction with the drive belt 418, the linkage wheel 419 and the gear component 425, the two rotating shafts 422 and the end folding plate 423 move synchronously, thereby causing the end folding plate 423 to press the end of the frame back into the concave feature. That is, through the self-elasticity of its end and the back pressure limit, the end of the frame is limited and fixed (the back pressure angle is adjustable, and the welding gap of the end of the frame can be controlled as the angle of back pressure into the concave feature is adjusted to adapt to the end structure of different specifications of battery shells). Then the heating element 424 runs to heat and preheat the battery shell frame through the preheating heat line 414 and the heating guide wire 421. After preheating, welding gun 406 completes the welding of the battery casing frame end using laser; In specific application scenarios, the thermosetting welding unit 4 is suitable for the frame welding stage of micro battery casing processing. Specifically, the thermosetting welding unit 4, through a fixed motor 427, can drive the two end plates 423 to move synchronously, actively pressing the slightly unfolded frame ends, caused by the metal's elasticity, back into the concave feature of the side mold 20. This allows the device to utilize the inherent elasticity of the metal substrate combined with active limiting to prevent welding misalignment caused by end warping or opening, ensuring weld alignment accuracy. Furthermore, the back pressure angle can be adjusted according to different battery casing specifications, thereby precisely controlling the welding gap at the frame ends. Simultaneously, the preheating tape 414 is driven to tighten by the tape reel 416, gradually adhering to the frame. The outer wall of the battery casing frame securely wraps and fixes the frame to the telescopic mold rod 18, the fixed mold 19, and the side mold 20. This circumferential uniform pressing method greatly improves the rigidity constraint of the welding area of ​​the thin-walled material, effectively suppresses the warping deformation caused by the welding heat input, and further ensures the stability of the frame during the welding process. In addition, the preheating heat line 414 is equipped with a heating guide wire 421, which uniformly preheats the battery casing frame while wrapping and fixing it, so that the metal substrate reaches a suitable temperature before welding. This effectively reduces the instantaneous heat input required for welding, reduces the thermal gradient and thermal stress inside the thin-walled material, thereby significantly reducing the risk of welding deformation and improving the weld formation quality and airtightness. It should be noted that by utilizing the elastic micro-expansion of the metal substrate end itself, and then pressing it back into the concave feature of the side mold 20 through the end folding plate 423, reliable positioning is achieved, and the indentation or damage caused to the thin-walled edge by traditional rigid clamping is avoided. While ensuring fixation, the surface quality of the workpiece is effectively protected. The preheating heat plate 414 has a welding port. After the preheating heat plate 414 is tightened and wrapped, the laser welding gun 406 can still directly weld the weld position through this interface, realizing non-interference continuous operation of fixing, preheating and welding, taking into account both the fixing effect and the accessibility of welding.

[0028] Reference Figure 2 and Figure 3 In a preferred embodiment, it further includes: Multiple bending drive mechanisms 12 are provided on the mold plate base 17; A fixed bending component 11 is provided on one of the bending drive mechanisms 12. The fixed bending component 11 is located above the fixed mold 19. The other bending drive mechanisms 12 are respectively provided with an upper bending component 10, an upper bending component 2 13, a side bending component 14, a side bending component 2 16, an end bending component 15, and an end bending component 2 30. The frame guide 9 is set on the welding base 1 and the bending welding frame 3.

[0029] Reference Figure 1 , Figure 2 , Figure 8 and Figure 9 In a preferred embodiment, it further includes: Fixed guide rail 5 is set on welding base 1. Two fixed welding seats 7 are set on fixed guide rail 5. Each of the two fixed welding seats 7 is equipped with a telescopic mechanism 6. Multiple welding guns 25 are respectively installed on the output ends of two telescopic mechanisms 6; Two panel welding stations 8 are provided, both of which are set on the welding base 1. The welding base 1 has an installation cavity, and a drive motor 21 is installed inside the installation cavity. The output shaft of the drive motor 21 is connected to the bottom of one of the panel welding stations 8 through a coupling. Linkage belt 23 is set on two panel soldering stations 8.

[0030] Reference Figure 1 , Figure 9 and Figure 10 In a preferred embodiment, it further includes: A pre-welding mold 24 is provided on one of the panel welding stations 8, and a full welding mold 26 is provided on the other panel welding station 8. The motion guide rail 2 is set on the welding base 1. The motion guide rail 2 is provided with two motion bases 27. Each of the two motion bases 27 is provided with an operating robotic arm 22. The two operating robotic arms 22 are respectively provided with an adsorption end 28 and a pickup end 29.

[0031] A welding method for processing a micro battery casing, using a welding device for processing a micro battery casing as described above, includes the following steps: Step 1: The metal substrate of the shell frame is set at the bending part. At this time, the bending drive mechanism 12 runs to drive multiple bending parts to bend the metal substrate until the battery shell frame is bent and formed. Step 2: Frame welding. The bent part is reset under the drive of the bending drive mechanism 12. At this time, the drive motor 405 runs, which drives the linear screw 404 to rotate, and the linear screw 404 drives the movable guide block 403 to rise, thereby causing the movable guide block 403 to drive the welding gun part 406 to rise to the welding position to prepare for welding. During preheating and fixing, the general-purpose motor 410 operates, driving the drive gear 413 to rotate. Since the drive gear 413 meshes with the driven gear 408, the general-purpose motor 410 can drive the shaft 401 and the connecting frame 407 to rotate, and further drive the outer frame 412 of the housing to rotate, so that the outer frame 412 of the housing is fitted onto the outer periphery of the battery housing frame. At this time, the servo motor 417 operates, driving the heat exchange roller 416 to rotate, and causing the heat exchange roller 416 to tighten the preheating heat strip 414, so that the preheating heat strip 414 gradually contacts the outer wall of the battery housing frame during the tightening process, and fixes the battery housing frame to the telescopic mold rod 18 and the fixing mold as it tightens. 19. On the side mold 20, to prevent it from shifting, and at the same time when it is fixed, because the bottom of the side mold 20 has a concave feature, and the end of the frame has metal elasticity, the end of the frame is slightly unfolded outward. At this time, the fixing motor 427 can drive the drive gear 426 to rotate, and cooperate with the drive belt 418, the linkage wheel 419 and the gear component 425 to make the two rotating shafts 422 and the end folding plate 423 move synchronously, thereby making the end folding plate 423 press the end of the frame back into the concave feature. That is, through the self-elasticity and back pressure limit of its end, the end of the frame is limited and fixed. Then the heating element 424 runs to heat and preheat the battery case frame through the preheating heat line 414 and the heating guide wire 421. After preheating, welding gun 406 completes the welding of the battery casing frame end using laser; Step 3: After welding, the telescopic mold rod 18 will remove the frame from the bent part and guide it to the welding base 1 surface by the frame guide 9. Step 4: Panel welding. At this time, the robotic arm 22 is operated to place the battery case frame and frame panel on the pre-welding mold 24, and transfer the workpiece that has been pre-welded to the full welding mold 26 in preparation for pre-welding and full welding. Step 5: The welding gun 25 is driven by the telescopic mechanism 6 to perform welding, while the drive motor 21 and the linkage belt 23 drive the panel welding station 8 to rotate until the panel welding is completed.

[0032] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A welding device for processing miniature battery casings, characterized in that, include: A welding base (1) is provided on the welding base (1), a bending welding frame (3) is provided on the bending welding frame (3), a mold plate seat (17) is provided on the bending welding frame (3), and a fixed mold (19) is provided on the mold plate seat (17). Multiple telescopic mold rods (18) are provided on the mold plate base (17), and the multiple telescopic mold rods (18) are respectively located on both sides of the fixed mold (19); Side mold (20) is disposed on mold plate base (17) and the side mold (20) is located below the fixed mold (19); The thermosetting welding unit (4) is set on the bending welding frame (3). The thermosetting welding unit (4) includes a welding gun (406), a preheating heat plate (414) and two end plates (423). The welding gun (406) is located below the side mold (20).

2. The welding equipment for processing micro battery casings according to claim 1, characterized in that, The thermosetting welding unit (4) also includes: Mounting seat (402), mounting seat (402) is set on bending and welding frame (3), the mounting seat (402) is provided with a linear screw (404), the linear screw (404) and the mounting seat (402) are provided with the same movable guide block (403), and the welding gun (406) is set on the movable guide block (403); A drive motor (405) is mounted on a mounting base (402), and the output shaft of the drive motor (405) is connected to one end of a linear lead screw (404) via a coupling. A fixed frame (409) is provided on the welding gun (406), and two shaft members (401) are provided on the fixed frame (409).

3. The welding equipment for processing micro battery casings according to claim 2, characterized in that, The thermosetting welding unit (4) also includes: A connecting frame (407) is provided on two shaft members (401), one end of which is provided with a driven gear (408). A general-purpose motor (410) is mounted on a fixed frame (409). The output shaft of the general-purpose motor (410) is connected to a drive gear (413) via a coupling. The drive gear (413) meshes with the driven gear (408).

4. The welding equipment for processing micro battery casings according to claim 3, characterized in that, The thermosetting welding unit (4) also includes: The outer frame (412) of the housing is mounted on the connecting frame (407). The outer frame (412) of the housing is provided with a cover frame panel (411), and the cover frame panel (411) is provided with two mounting shafts (415). Tropical reel (416), the tropical reel (416) is mounted on one of the mounting shafts (415); The guide wheel (420) is mounted on another mounting shaft (415). The preheating heat (414) is mounted on the heat reel (416) and the guide wheel (420). One end of the preheating heat (414) is mounted on the outer frame (412) of the housing.

5. The welding equipment for processing micro battery casings according to claim 4, characterized in that, The thermosetting welding unit (4) also includes: Servo motor (417) is mounted on cover frame panel (411), and the output shaft of servo motor (417) is mounted on one end of one of the mounting shafts (415) via a coupling; Heating element (424) is disposed on the outer frame (412) of the housing. Two heating guide wires (421) are disposed on the heating element (424). Both heating guide wires (421) are disposed inside the preheating zone (414). Welding joints are provided on the preheating zone (414).

6. The welding equipment for processing micro battery casings according to claim 5, characterized in that, The thermosetting welding unit (4) also includes: Two rotating shafts (422) are both mounted on the cover frame panel (411), and the two end plate folding plates are respectively mounted on the two rotating shafts (422); A bracket (428) is mounted on a cover frame panel (411). A fixed motor (427) is mounted on the bracket (428). The output shaft of the fixed motor (427) is connected to a drive gear (426) via a coupling. Both the drive gear (426) and one of the rotating shafts (422) are equipped with linkage wheels (419). The two linkage wheels (419) are equipped with the same drive belt (418). A gear component (425) is mounted on another rotating shaft (422) and meshes with a drive gear (426).

7. The welding equipment for processing micro battery casings according to claim 1, characterized in that, Also includes: Multiple bending drive mechanisms (12) are provided on the mold plate base (17); A fixed bending component (11) is provided on one of the bending drive mechanisms (12). The fixed bending component (11) is located above the fixed mold (19). The other bending drive mechanisms (12) are respectively provided with an upper bending component one (10), an upper bending component two (13), a side bending component one (14), a side bending component two (16), an end bending component one (15), and an end bending component two (30). The frame guide (9) is set on the welding base (1) and the bending welding frame (3).

8. The welding equipment for processing micro battery casings according to claim 1, characterized in that, Also includes: Fixed guide rail (5) is set on welding base (1). Two fixed welding seats (7) are set on the fixed guide rail (5). Each of the two fixed welding seats (7) is equipped with a telescopic mechanism (6). Multiple welding guns (25) are respectively installed on the output ends of two telescopic mechanisms (6); Two panel welding stations (8) are provided on a welding base (1). The welding base (1) has an installation cavity, and a drive motor (21) is provided inside the installation cavity. The output shaft of the drive motor (21) is connected to the bottom of one of the panel welding stations (8) through a coupling. Linkage belt (23) is set on two panel soldering stations (8).

9. The welding equipment for processing micro battery casings according to claim 8, characterized in that, Also includes: A pre-welding mold (24) is provided on one of the panel welding stations (8), and a full welding mold (26) is provided on the other panel welding station (8). Motion guide rail (2) is set on welding base (1). Two motion bases (27) are set on the motion guide rail (2). Each of the two motion bases (27) is equipped with an operating robot arm (22). The two operating robot arms (22) are respectively equipped with an adsorption end (28) and a pickup end (29).

10. A welding method for processing a micro battery casing, using a welding apparatus for processing a micro battery casing as described in claims 1-9, characterized in that, Includes the following steps: Step 1: The metal substrate of the shell frame is set at the bending part. At this time, the bending drive mechanism (12) runs to drive multiple bending parts to bend the metal substrate until the battery shell frame is bent and formed. Step 2: Frame welding. The thermosetting welding unit (4) is in operation. The outer frame (412) of the shell is set outside the battery shell frame. The battery shell frame is fixed and preheated by the shrinkage of the preheating zone (414). Then, the end welding of the battery shell frame is completed by the welding gun (406). Step 3: After welding, the telescopic mold rod (18) will remove the frame from the bent part and guide it to the welding base (1) by the frame guide (9); Step 4, panel welding. At this time, the robotic arm (22) is operated to set the battery shell frame and frame panel on the pre-welding mold (24), and the workpiece that has been pre-welded is transferred to the full welding mold (26) in preparation for pre-welding and full welding. Step 5: The welding gun (25) is driven by the telescopic mechanism (6) to perform welding, while the drive motor (21) and the linkage belt (23) drive the panel welding station (8) to rotate until the panel welding is completed.

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