Rotary welding machine

Abstract

The present invention discloses a rotary welding machine, including a base, a feeding mechanism and a discharging mechanism, etc., and also includes a working turntable, a positioning groove, a pair of positioning wheels, a lifting mechanism, a pressure wheel auxiliary mechanism, a driving wheel and a welding head, etc.; in this way, when the working turntable intermittently rotates to drive the outer circumferential surface of the battery in the positioning groove to contact the driving wheel, it also drives the lifting mechanism to rise and push the battery, and forms a rotating support at the bottom end of the battery and the top end of the battery is pressed and positioned by the pressure wheel auxiliary mechanism in cooperation with any one of the positioning wheels to form a pressure-holding and rotating support. At this time, only the driving wheel needs to drive the battery to rotate, and the welding head can perform circumferential welding of the collector ring on the end of the battery. Therefore, this welding method of rotating the battery by intermittent rotation of the working turntable, and positioning the battery and driving the battery to rotate to achieve circumferential welding of the collector ring has the advantages of high production efficiency, small space occupation, and reliable welding quality.

Description

Technical Field

[0001] This invention relates to a welding machine for welding current collector coils at the end of batteries, specifically a rotary welding machine. Background Technology

[0002] Currently, current collector coils need to be welded at the battery ends. Traditional welding methods mainly use spot welding, where a feeding mechanism sequentially feeds batteries to a welding machine, and multiple welding machines work in conjunction with multiple stations to perform spot welding one by one. Finally, a discharging mechanism outputs the welded batteries sequentially. This spot welding method is not only inefficient but also makes it difficult to guarantee the reliability of the end structure, often leading to leakage at the battery ends during later use. Furthermore, the process of sequentially feeding batteries to the welding machine mainly uses a circulating conveyor chain structure. While this structure automates the welding process, the conveyor chain needs to maintain a certain length, resulting in a large overall production line that occupies significant space in a limited production workshop. In addition, with the increasing application of lithium batteries, there is an urgent market demand for battery manufacturers to provide more welding machines with different structures and operating methods to meet the welding needs of current collector coils at the battery ends. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the defects of the prior art and provide a rotary welding machine with high production efficiency, small space occupation and reliable welding quality.

[0004] The technical problem of this invention is solved by the following technical solution:

[0005] A rotary welding machine, mainly used for welding current collectors at the end of batteries, includes a base and a feeding mechanism and a discharging mechanism mounted on the base. The base has an intermittently rotating working turntable, which is connected to the feeding and discharging mechanisms. Multiple positioning slots are provided on the outer circumference of the working turntable, each capable of positioning or detaching a battery. The working turntable has a pair of positioning wheels adjacent to each positioning slot, which simultaneously contact the outer circumferential surface of the battery within the positioning slot to form a positioning. Each battery within a positioning slot has a pressure roller auxiliary mechanism above it and a lifting mechanism below it. The lifting mechanism moves up and down with the intermittent rotation of the working turntable. One or more positioning slots have a drive wheel and a welding head nearby. The intermittent rotation of the working turntable causes the outer circumferential surface of the battery within the positioning slot to contact the drive wheel, and simultaneously drives the lifting mechanism to rise and push the battery. This forms a rotating support at the bottom of the battery and a pressing and positioning rotating support at the top of the battery formed by the pressure roller auxiliary mechanism and any one of the positioning wheels. After the drive wheel drives the battery to rotate, the welding head performs circumferential welding on the end of the battery for the current collector.

[0006] The pressure roller auxiliary mechanism includes a pressure roller and a pressure roller cylinder that drives the pressure roller to reciprocate inward and outward; the lifting mechanism rises and pushes the top of the battery close to the pressure roller auxiliary mechanism, the pressure roller is driven outward by the pressure roller cylinder, and cooperates with any one of the positioning wheels to push the outer circumferential surface of the current collector to contact the inner circumferential surface of the battery end to form a pressing, positioning, and rotating support; the pressure roller is driven inward by the pressure roller cylinder to disengage from any one of the positioning wheels, and the lifting mechanism descends to move the top of the battery away from the pressure roller auxiliary mechanism.

[0007] The lifting mechanism includes a drive disc, a fixed disc, and multiple lifting rods that are slidably mounted on the outer circumference of the drive disc. The drive disc and the working turntable are coaxially rotatably mounted. The fixed disc is fixed relative to the working turntable and has an elliptical groove on its outer circumference. The number and position of the multiple lifting rods are equal to the number of positioning grooves on the outer circumference of the working turntable. Each lifting rod has a pulley at its bottom end that is rolled and fitted in the groove, and a support positioning seat at its top end. The drive disc and the working turntable rotate coaxially, causing the pulley at the bottom end of each lifting rod to roll along the groove, thereby driving each lifting rod to move up and down on the outer circumference of the drive disc. The rising of the lifting rod causes the support positioning seat to push against the bottom end of the battery, forming a positioning rotation support at the bottom end of the battery.

[0008] The working turntable is surrounded by an enclosing working arc edge, and the multiple positioning grooves and the working arc edge form a working channel.

[0009] The feeding mechanism includes a feeding turntable with multiple feeding slots on its outer circumference. Each feeding slot can position or detach a battery. The multiple feeding slots and the feeding arc edge surrounding the feeding turntable form a feeding channel. The starting end of the feeding channel has a feeding port, and the ending end of the feeding channel is connected to the starting end of the working channel.

[0010] The discharge mechanism includes a discharge turntable with multiple discharge slots on its outer circumference. Each discharge slot can position or detach a battery. The multiple discharge slots and the discharge arc edge surrounding the discharge turntable form a discharge channel. The starting end of the discharge channel is connected to the ending end of the working channel. The ending end of the discharge channel is provided with a discharge port.

[0011] The feed turntable, working turntable, and discharge turntable are sequentially connected in an intermittent linkage rotation.

[0012] The feeding turntable is mounted on the feeding shaft, the working turntable is mounted on the main shaft, and the discharging turntable is mounted on the discharging shaft. The feeding shaft, main shaft, and discharging shaft are all vertically rotatably mounted on the base, and transmission gear sets are provided between the main shaft and the feeding shaft, and between the main shaft and the discharging shaft.

[0013] The base is equipped with a drive motor, which is connected to the main shaft to form an intermittent rotation drive; the drive wheel is driven to rotate by the drive motor.

[0014] The feed inlet, feed arc edge, working arc edge, discharge arc edge, and discharge outlet are all formed by baffles installed on the base.

[0015] Compared with the prior art, the present invention mainly features an intermittently rotating working turntable mounted on a base. This working turntable is connected to the feeding mechanism and the discharging mechanism, and has multiple positioning grooves on its outer circumference. Each positioning groove can position or detach a battery. A pair of positioning wheels adjacent to each positioning groove are also provided on the working turntable. These wheels simultaneously contact the outer circumferential surface of the battery within the positioning groove to form a positioning. Each battery within the positioning groove has a pressure roller auxiliary mechanism above it and a lifting mechanism below it. The lifting mechanism can move up and down with the intermittent rotation of the working turntable. Additionally, a drive wheel and a welding head are provided next to one or more positioning grooves. Thus, when the intermittent rotation of the working turntable causes the outer circumferential surface of the battery within the positioning groove to contact the drive wheel, it also causes the lifting mechanism to rise and push the battery. This creates a rotating support at the bottom of the battery and a pressing and positioning rotating support at the top of the battery formed by the pressure roller auxiliary mechanism and any one of the positioning wheels. At this point, after the drive wheel drives the battery to rotate, the welding head can perform circumferential welding of the current collector ring at the end of the battery. Therefore, this welding method, which uses the intermittent rotation of the worktable to transport batteries and to position and drive the batteries to rotate in order to achieve circumferential welding of the current collector, has the advantages of high production efficiency, small space occupation, and reliable welding quality. Attached Figure Description

[0016] Figure 1 It is a top view of the present invention.

[0017] Figure 2 for Figure 1 Sectional view A-A.

[0018] Figure 3 for Figure 1 Enlarged view of point B.

[0019] Figure 4 for Figure 2 Enlarged view of point C. Detailed Implementation

[0020] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0021] like Figures 1-4As shown, 1. Base, 11. Main shaft, 12. Feed shaft, 13. Discharge shaft, 14. Base plate, 15. Support rod, 16. Top plate, 17. Shaft sleeve, 18. Drive motor, 19. Transmission gear set, 21. Working turntable, 22. Positioning groove, 23. Positioning wheel, 24. Pressure roller auxiliary mechanism, 241. Pressure roller, 242. Pressure roller cylinder, 3. Feeding mechanism, 31. Feeding turntable, 32. Feeding groove, 4. Discharge mechanism, 41. Discharge turntable, 42. Discharge... 5. Drive wheel, 51. Drive motor, 6. Welding head, 7. Baffle, 71. Feed inlet, 72. Feed arc edge, 73. Feed channel, 74. Working arc edge, 75. Working channel, 76. Discharge arc edge, 77. Discharge channel, 78. Discharge port, 8. Lifting mechanism, 81. Lifting rod, 82. Support positioning turntable, 83. Pulley, 84. Drive disc, 841. Linear guide rail, 85. Fixed disc, 851. Slide groove, 9. Battery, 91. Current collector.

[0022] Rotary welding machines, such as Figure 1 , Figure 2 As shown, it is mainly used to perform circumferential welding of the current collector 91 at the end of the battery 9. Its structure includes a base 1, and a working turntable 21, a feeding mechanism 3 and a discharging mechanism 4 installed on the base. The working turntable 21 is connected to the feeding mechanism 3 and the discharging mechanism 4 respectively.

[0023] The base 1 is a frame structure consisting of a bottom plate 14, a top plate 16, and a support rod 15 that connects and fixes the two together. The outer circumference of the working turntable 21 is provided with multiple circumferentially distributed positioning grooves 22, each of which can position or detach the battery 9. The feeding mechanism 3 includes a feeding turntable 31, the outer circumference of which is provided with multiple circumferentially distributed feeding grooves 32, each of which can position or detach the battery 9. The discharging mechanism 4 includes a discharging turntable 41, the outer circumference of which is provided with multiple circumferentially distributed discharging grooves 42, each of which can position or detach the battery 9.

[0024] The base 1, or actually the top plate 16, is equipped with a vertically rotatable feed shaft 12, a main shaft 11, and a discharge shaft 13. Specifically, the feed shaft 12, the main shaft 11, and the discharge shaft 13 are all rotatably mounted in a bushing 17 via bearings, and the bushing is fixed to the top plate 16. The top end of the main shaft 11 passes through the top of the bushing 17 to fix the working turntable 21, the top end of the feed shaft 12 passes through the top of the bushing 17 to fix the feed turntable 31, and the top end of the discharge shaft 13 passes through the top of the bushing 17 to fix the discharge turntable 41. The bottom ends of the main shaft 11, the feed shaft 12, and the discharge shaft 13 also pass through the bottom of the bushing 17. Furthermore, transmission gear sets 19 are provided between the bottom ends of the main shaft 11 and the feed shaft 12, and between the bottom ends of the main shaft 11 and the discharge shaft 13.

[0025] Furthermore, the feeding turntable 31, the working turntable 21, and the discharging turntable 41 are sequentially connected in an intermittent linkage rotation. Specifically, a drive motor 18 is provided in the base 1. After the drive motor is connected to the main shaft 11, it can drive the main shaft to rotate intermittently, thereby realizing the synchronous intermittent linkage rotation of the feeding shaft 12 and the discharging shaft 13. That is, the feeding turntable 31, the working turntable 21, and the discharging turntable 41 form a synchronous intermittent linkage rotation.

[0026] Meanwhile, the working turntable 21 has an enclosing working arc edge 74 around its periphery, and the working channel 75 is formed between the multiple positioning slots 22 and the working arc edge 74; the feeding turntable 31 has an enclosing feeding arc edge 72 around its periphery, and the feeding channel 73 is formed between the multiple feeding slots 32 and the feeding arc edge 72, with a feeding port 71 at the beginning of the feeding channel and the end of the feeding channel 73 connected to the beginning of the working channel 75; the discharging turntable 41 has an enclosing discharging arc edge 76 around its periphery, and the discharging channel 77 is formed between the multiple discharging slots 42 and the discharging arc edge 76, with the beginning of the discharging channel connected to the end of the working channel 75 and the discharging port 78 at the end of the discharging channel 77.

[0027] Thus, the inlet 71, the inlet channel 73, the working channel 75, the outlet channel 77, and the outlet 78 form a complete rotary welding production line channel that can be used for welding the current collector 91 at the end of the battery 9. The inlet 71, the inlet arc edge 72, the working arc edge 74, the outlet arc edge 76, and the outlet 78 are all formed by assembling several baffles 7 set on the base 1.

[0028] The working turntable 21 is provided with a pair of positioning wheels 23 adjacent to each positioning slot 22. The pair of positioning wheels can simultaneously contact the outer circumferential surface of the battery 9 in the positioning slot 22 to form positioning. Each battery 9 in the positioning slot 22 is provided with a pressure roller auxiliary mechanism 24 above and a lifting mechanism 8 below. The lifting mechanism can move up and down with the intermittent rotation of the working turntable 21.

[0029] The lifting mechanism 8 includes a drive disk 84, a fixed disk 85, and multiple lifting rods 81 evenly distributed around the outer circumference of the drive disk. The drive disk 84 and the working turntable 21 are coaxially rotated, meaning that the main shaft 11 can synchronously drive the working turntable 21 and the drive disk 84 to rotate intermittently. The fixed disk 85 is mounted on the bushing 17 outside the main shaft 11, so the fixed disk 85 is fixed relative to the working turntable 21. An elliptical groove 851 is provided on the outer circumference of the fixed disk 85.

[0030] The number and position of the multiple lifting rods 81 are equal to the number of positioning slots 22 on the outer circumference of the working turntable 21. Each lifting rod 81 is slidably set by a linear guide rail 841 on the outer circumference of the drive disk 84, that is, the lifting and lowering movement is formed relative to the drive disk 84 by the sliding of the linear guide rail 841. Moreover, each lifting rod 81 has a pulley 83 rolled in the slide groove 851 at the bottom end, and a support positioning turntable 82 at the top end of each lifting rod 81.

[0031] Therefore, when the drive disk 84 and the working turntable 21 rotate coaxially, the pulley 83 at the bottom of each lifting rod 81 can roll along the slide groove 851. Due to the special elliptical structure of the slide groove, when the pulley 83 rolls along the slide groove 851, it will cause each lifting rod 81 to move up and down along the linear guide rail 841 on the outer circumference of the drive disk 84. The rise of the lifting rod 81 will drive the support positioning turntable 82 to push the bottom of the battery 9, and make the bottom of the battery form a positioning rotation support.

[0032] Of course, as the battery 9 is pushed up by the lifting rod 81, the top of the battery will also rise and approach the pressure roller auxiliary mechanism 24. The pressure roller auxiliary mechanism 24, together with any one of the positioning rollers 23, will form a pressure-holding, positioning, and rotating support. The specific structure is as follows: The pressure roller auxiliary mechanism 24 includes a pair of pressure rollers 241 and a pressure roller cylinder 242 that drives the pair of pressure rollers to move synchronously inward and outward. When the lifting mechanism 8 rises and pushes the top of the battery 9 close to the pressure roller auxiliary mechanism 24, the pair of pressure rollers 241 are simultaneously driven outward by the pressure roller cylinder 242. That is, the pair of pressure rollers 241 move outward from the original middle position of the battery and approach the side position of the battery. Then, together with any one of the positioning rollers 23, they can push the outer circumferential surface of the current collector 91 to contact the inner circumferential surface of the end of the battery 9 and form a tight fit. This forms a pressure-holding, positioning, and rotating support between the two, so that the bottom and top of the battery 9 are simultaneously positioned and supported for rotation.

[0033] The pair of pressure rollers 241 are driven by the pressure roller cylinder 242 to move inward simultaneously. That is, the pair of pressure rollers 241 move inward from the original side position of the battery to the middle position of the battery. They will disengage from any one of the positioning rollers 23. Then the lifting mechanism 8 descends, which will drive the top of the battery 9 away from the pressure roller auxiliary mechanism 24. This action process usually refers to the output action after the current collector 91 completes the circumferential welding at the end of the battery 9.

[0034] In addition, a drive wheel 5 and a welding head 6 are provided next to one or more positioning slots 22. In this embodiment, the drive wheel 5 and welding head 6 are provided next to one of the positioning slots 22 near the discharge mechanism 4, that is, the drive wheel 5 and welding head 6 are provided next to one of the positioning slots 22 near the end of the working channel 75. The drive wheel can be actively driven to rotate by the drive motor 51. The welding head 6 can be a common laser welding head for laser welding, or it can be electromagnetic pulse welding or other welding methods.

[0035] The welding head 6 is typically welded between a pair of pressure rollers 241. This is because the pair of pressure rollers 241, together with any one of the positioning rollers 23, push the outer circumferential surface of the current collector 91 to contact the inner circumferential surface of the end of the battery 9, forming a tight fit. This creates a pressing, positioning, and rotating support between the two. As the drive wheel 5 drives the battery 9 to rotate, the welding position between the pair of pressure rollers 241 will always remain accurate and stable. In other words, when the welding head 6 performs circumferential welding at this position, it can always ensure that the outer circumferential surface of the current collector 91 is in close contact with the inner circumferential surface of the end of the battery 9 and prevent displacement, thereby improving the reliability of the welding quality.

[0036] However, multiple sets of one-to-one corresponding drive wheels 5 and welding heads 6 can also be provided next to multiple positioning slots 22. This is to ensure that if the welding of the current collector 91 at the end of the battery cannot be effectively completed at a station of a positioning slot 22 during the actual processing, the welding can continue to the next or the next positioning slot 22 station. This can save the welding time at a station, improve the operating efficiency and production efficiency of the equipment, and ensure the reliability of the welding quality.

[0037] The working process of the present invention is as follows: the battery 9 is sequentially fed into multiple positioning slots 22 of the working turntable 21 by the feeding mechanism 3, and the positioning is formed by a pair of adjacent positioning wheels 23 of each positioning slot simultaneously contacting the outer circumferential surface of the battery 9. The working turntable 21 drives the battery 9 in the positioning slot 22 to rotate intermittently, and at the same time drives the lifting mechanism 8 to move up and down.

[0038] Thus, as the working turntable 21 drives the battery 9 in the positioning groove 22 to gradually approach the drive wheel 5, the lifting mechanism 8 rises synchronously until the battery 9 contacts the drive wheel 5. The lifting mechanism 8 rises to its highest point and, in conjunction with the pressure roller auxiliary mechanism 24, forms a rotating support positioning for the bottom and top of the battery 9. At this point, after the battery 9 is driven to rotate by the drive wheel 5, the welding head 6 can perform circumferential welding on the end of the battery 9. Then, the working turntable 21 drives the battery 9 in the positioning groove 22, which has completed the circumferential welding of the current collector, to gradually leave the drive wheel 5. The lifting mechanism 8 descends synchronously until the bottom and top of the battery 9 are driven to jointly disengage from the rotating support positioning. The welded battery 9 can then be output sequentially by the discharge mechanism 4.

[0039] The above working process involves the side welding structure of the welding head 6 placed at an angle in this example. It can usually be used to weld the end of the battery 9 shell to the current collector in a circular manner. In actual processing, the welding head 6 can also be placed vertically above the battery 9 for planar welding. In this case, the drive wheel 5 does not need to rotate. The drive wheel 5 only needs to work with a pair of positioning wheels 23 to position the battery 9. Then the welding head 6 can weld the current collector 91 to the end of the battery 9. For example, it can be used to weld the tabs at the end of the battery cell to the current collector 91.

[0040] Furthermore, depending on the processing location, the welding head 6 can be placed in other welding positions. In fact, if the support and rotation of the battery 9 are not involved, the pair of positioning wheels 23 next to each positioning groove 22 can be omitted directly in the overall structure.

[0041] In this embodiment, when the working turntable 21 drives the battery 9 in the positioning groove 22 to be in the previous positioning groove 22 of the drive wheel 5, the lifting mechanism 8 has already risen to the highest point and cooperates with the pressure roller auxiliary mechanism 24 to form a rotational support positioning for the bottom and top of the battery 9. As the working turntable 21 continues to rotate and drives the battery 9 in the positioning groove 22 to contact the drive wheel 5, the rotational support positioning for the bottom and top of the battery 9 is always maintained by the lifting mechanism 8 and the pressure roller auxiliary mechanism 24. The purpose of this design is to ensure that the welding head 6 can always obtain the rotational support positioning for the bottom and top of the battery 9 when performing circumferential welding of the current collector 91 at the end of the battery 9, thereby improving the reliability of the circumferential welding structure.

[0042] Obviously, this welding method, which uses the intermittent rotation of the working turntable 21 to rotate and transport the battery, and to position and drive the battery 9 to rotate to achieve circumferential welding of the current collector 91, has the advantages of high production efficiency, small space occupation, and reliable welding quality. In actual use, this rotary welding machine is not only used for welding the battery 9 and the current collector 91, but is also suitable for welding other similar workpieces, and its application range is quite wide.

[0043] The above description is merely a specific embodiment of the present invention. Those skilled in the art should understand that any structural design equivalent to this embodiment should be included within the protection scope of the present invention.

Claims

1. A rotary welding machine, mainly used for welding current collectors (91) at the end of a battery (9), comprising a base (1), and a feeding mechanism (3) and a discharging mechanism (4) mounted on the base, characterized in that... The base (1) is provided with an intermittently rotating working turntable (21), which is connected to the feeding mechanism (3) and the discharging mechanism (4) respectively. Multiple positioning grooves (22) are provided on the outer circumference of the working turntable (21), and each positioning groove can be used to position or detach the battery (9). The working turntable (21) is provided with a pair of positioning wheels (23) adjacent to each positioning groove (22). The pair of positioning wheels simultaneously contact the outer circumferential surface of the battery (9) in the positioning groove (22) to form a positioning. Each positioning groove (22) has a pressure roller auxiliary mechanism (24) above the battery (9) and a lifting mechanism (8) below it. The lifting mechanism moves with the working turntable (21). The intermittent rotation of the work turntable (21) forms a lifting and lowering movement, wherein one or more positioning slots (22) are provided with a drive wheel (5) and a welding head (6); the intermittent rotation of the work turntable (21) drives the outer circumferential surface of the battery (9) in the positioning slot (22) to contact the drive wheel (5), and at the same time drives the lifting mechanism (8) to rise and push the battery (9), so that the bottom end of the battery forms a rotating support and the top end of the battery is pressed and positioned by the pressure roller auxiliary mechanism (24) in conjunction with any one of the positioning wheels (23) to form a rotating support. After the drive wheel (5) drives the battery (9) to rotate, the welding head (6) performs circumferential welding of the current collector (91) at the end of the battery (9); the pressure roller auxiliary mechanism (24) includes The system includes a pressure roller (241) and a pressure roller cylinder (242) that drives the pressure roller to reciprocate in and out. The lifting mechanism (8) rises and pushes the top of the battery (9) close to the pressure roller auxiliary mechanism (24). The pressure roller (241) is driven outward by the pressure roller cylinder (242) and, in conjunction with any one of the positioning wheels (23), pushes the outer circumferential surface of the current collector (91) to contact the inner circumferential surface of the end of the battery (9) to form a pressing, positioning, and rotating support. The pressure roller (241) is driven inward by the pressure roller cylinder (242) and disengages from any one of the positioning wheels (23). The lifting mechanism (8) descends, causing the top of the battery (9) to move away from the pressure roller auxiliary mechanism (24). The device includes a drive disk (84), a fixed disk (85), and multiple lifting rods (81) that are slidably arranged on the outer circumference of the drive disk. The drive disk (84) and the working turntable (21) are coaxially rotatably mounted. The fixed disk (85) is fixed relative to the working turntable (21) and has an elliptical groove (851) on its outer circumference. The number and position of the multiple lifting rods (81) are equal to the number of positioning grooves (22) on the outer circumference of the working turntable (21). Each lifting rod (81) has a pulley (83) at its bottom end that is rolled and fitted in the groove (851), and each lifting rod (81) has a support positioning turntable (82) at its top end.The drive disc (84) and the working turntable (21) rotate coaxially, causing the pulleys (83) at the bottom of each lifting rod (81) to roll along the slide groove (851), thereby driving each lifting rod (81) to move up and down on the outer circumference of the drive disc (84); the rising of the lifting rod (81) causes the support positioning turntable (82) to push against the bottom of the battery (9), and the bottom of the battery forms a positioning rotation support.

2. The rotary welding machine according to claim 1, characterized in that... The working turntable (21) is provided with an enclosing working arc edge (74) around its periphery, and the multiple positioning grooves (22) and the working arc edge (74) form a working channel (75).

3. The rotary welding machine according to claim 2, characterized in that... The feeding mechanism (3) includes a feeding turntable (31), which has multiple feeding slots (32) on its outer circumference. Each feeding slot can be used to position or detach the battery (9). The multiple feeding slots (32) and the feeding arc edge (72) surrounding the feeding turntable (31) form a feeding channel (73). The starting end of the feeding channel has a feeding port (71), and the ending end of the feeding channel (73) is connected to the starting end of the working channel (75).

4. The rotary welding machine according to claim 3, characterized in that... The discharge mechanism (4) includes a discharge turntable (41), which has multiple discharge slots (42) on its outer circumference. Each discharge slot can be used to position or detach the battery (9). The multiple discharge slots (42) and the discharge arc edge (76) surrounding the discharge turntable (41) form a discharge channel (77). The starting end of the discharge channel is connected to the ending end of the working channel (75). The ending end of the discharge channel (77) is provided with a discharge port (78).

5. The rotary welding machine according to claim 4, characterized in that... The feed turntable (31), working turntable (21) and discharge turntable (41) are sequentially connected in an intermittent linkage rotation.

6. The rotary welding machine according to claim 5, characterized in that... The feed turntable (31) is mounted on the feed shaft (12), the working turntable (21) is mounted on the main shaft (11), and the discharge turntable (41) is mounted on the discharge shaft (13). The feed shaft (12), the main shaft (11) and the discharge shaft (13) are all vertically rotatably mounted on the base (1), and transmission gear sets (19) are provided between the main shaft (11) and the feed shaft (12) and between the main shaft (11) and the discharge shaft (13).

7. The rotary welding machine according to claim 6, characterized in that... The base (1) is equipped with a first drive motor (18), which is connected to the main shaft (11) to form an intermittent rotation drive; the drive wheel (5) is driven to rotate by a second drive motor (51).

8. The rotary welding machine according to claim 4, characterized in that... The feed inlet (71), feed arc edge (72), working arc edge (74), discharge arc edge (76) and discharge outlet (78) are all composed of baffles (7) set on the base (1).

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