Welding equipment for metal shell of storage battery

Abstract

The invention relates to the technical field of storage batteries, in particular to storage battery metal shell welding equipment which comprises a base, a control mechanism is fixedly connected to the front side of the top of the base, a plurality of metal shell placing mechanisms are fixedly connected to the outer wall of the control mechanism in an annular array mode, and a welding mechanism is fixedly connected to the rear side of the top of the base. By arranging the control mechanism and the metal shell containing mechanism, automation and high efficiency in the lithium battery metal shell welding process are achieved, and specifically, through internal mechanical structures of the control mechanism, such as a rotating rod motor, a connecting column, a connecting rod, a sliding groove disc, an inner rotating disc, a gear block, a gear, a second gear connecting rod and a second gear, the control mechanism can automatically conduct welding on the lithium battery metal shell. A precise transmission system is constructed, the system can precisely control the position and posture of the metal shell containing mechanism, and therefore the tedious step that in the traditional welding process, a lithium battery shell needs to be manually and frequently assembled and disassembled is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of storage batteries, and more particularly to a storage battery metal shell welding device. Background Art

[0002] A battery is a device that converts chemical energy directly into electrical energy. It is designed to be rechargeable and is recharged through a reversible chemical reaction. It usually refers to a lead-acid battery, which is a type of battery and belongs to a secondary battery. Its working principle: when charging, it uses external electrical energy to regenerate the internal active substances and store the electrical energy as chemical energy. When it needs to be discharged, it converts the chemical energy into electrical energy output again, such as the mobile phone batteries commonly used in life.

[0003] According to the patent document: CN218800112U, a lithium battery shell nickel-aluminum sheet welding device is disclosed, including a battery shell welding tool and a spot welder arranged above the battery shell welding tool; the battery shell welding tool includes a workbench, a base arranged on the workbench, a plurality of base notches arranged on the base, a plurality of battery shell support seats arranged in the base notches, and an upper cover arranged above the battery shell support seat; a plurality of upper cover notches corresponding to the positions of the battery shell support seats are arranged in the upper cover; the upper cover notches are used to position the nickel-aluminum sheet. The utility model designs the battery shell welding tool into a plurality of battery shell support seats, and installs them on the same base, so that multiple battery shells can be placed in the battery shell support seat at one time. The upper cover is redesigned according to the number and position of the battery shell support, and the upper cover notches for placing the nickel-aluminum sheet are opened according to the position of the battery shell support seat; the design can realize the automatic welding of multiple battery shells at the same time; Generally, when welding the metal shell of a battery, it is usually done in large quantities. However, in the traditional battery metal shell welding process, large-scale welding operations often face efficiency issues. After the metal shell of a lithium battery is welded, it is necessary to stop the welding equipment, reinstall the lithium battery shell, and then weld it again. This repetitive installation and disassembly process is not only time-consuming and labor-intensive, but also significantly reduces production efficiency, and it is impossible to achieve automation and efficiency in the welding of lithium battery metal shells. Summary of the invention

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a battery metal shell welding device. The technical problem to be solved by the present invention is: in the traditional battery metal shell welding process, large-scale welding operations often face efficiency problems. When the metal shell of a lithium battery is welded, it is necessary to stop the welding equipment, reinstall the lithium battery shell and then weld it. This repetitive installation and disassembly process is not only time-consuming and labor-intensive, but also significantly reduces production efficiency, and it is impossible to achieve automation and efficiency of the welding of the lithium battery metal shell.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: A battery metal shell welding device comprises a base, a control mechanism is fixedly connected to the front side of the top of the base, a plurality of metal shell placing mechanisms are fixedly connected to the outer wall annular array of the control mechanism, and a welding mechanism is fixedly connected to the rear side of the top of the base; The control mechanism comprises a control mechanism base, the top of the control mechanism base is fixedly connected with a connecting column, the outer wall of the connecting column is fixedly connected with a connecting rod, the bottom of the connecting rod is fixedly connected with a slide plate, and the bottom of the inner wall of the control mechanism base is fixedly connected with a rotating rod motor.

[0006] As a further solution of the present invention: a connecting cross bar is fixedly connected to the middle part of the inner wall of the connecting column, a rotating rod is fixedly connected to the output end of the rotating rod motor, the top of the rotating rod extends to the inner wall of the connecting column, the middle part of the outer wall of the rotating rod is rotatably connected to the middle part of the inner wall of the connecting cross bar, the top of the connecting cross bar is rotatably connected to the inner turntable, the side of the outer wall of the rotating rod away from the connecting cross bar is fixedly connected to the inner wall of the inner turntable, and a plurality of gear blocks are fixedly connected to the top annular array of the inner turntable.

[0007] As a further solution of the present invention: the top sides of the multiple tooth blocks are respectively engaged with gears, the opposite surfaces of the two gears are fixedly connected with second gear connecting rods, and the opposite ends of the two second gear connecting rods extend to the outer wall of the connecting column and are fixedly connected with second gears.

[0008] As a further solution of the present invention: a fan-shaped tooth connecting block is fixedly connected to the bottom of the slide plate, a fan-shaped tooth is fixedly connected to the side of the fan-shaped tooth connecting block away from the slide plate, an L-shaped fan-shaped tooth connecting rod is fixedly connected to the side of the bottom of the slide plate away from the fan-shaped tooth connecting block, a second fan-shaped tooth placement block is fixedly connected to the side of the L-shaped fan-shaped tooth connecting rod away from the slide plate, and a second fan-shaped tooth is fixedly connected to the side of the second fan-shaped tooth placement block close to the slide plate.

[0009] As a further solution of the present invention: the top inner wall of the connecting rod is rotatably connected to an outer turntable, the inner wall of the outer turntable is hollow in design, the inner wall of the outer turntable is rotatably connected to the outer wall of the connecting column, the outer wall of the outer turntable is fixedly connected to the connecting disk, the top annular array of the outer turntable is fixedly connected to a plurality of outer turntable tooth blocks, the top two sides of the plurality of outer turntable tooth blocks are respectively engaged with the outer walls of the two second gears, the top annular array of the connecting disk is fixedly connected to a plurality of connecting frames, and the plurality of connecting frames are fixedly connected to a placement mechanism connecting tube on one side away from the connecting disk.

[0010] As a further solution of the present invention: the plurality of metal shell placement mechanisms all include a placement mechanism bottom tube, and the outer walls of the plurality of placement mechanism bottom tubes are all fixedly connected to the inner wall of the placement mechanism connecting tube.

[0011] As a further solution of the present invention: the top of the bottom tube of the placement mechanism is fixedly connected with a cross plate, and the four sides of the top of the cross plate are respectively opened with sliding grooves, the inner wall of the bottom tube of the placement mechanism is rotatably connected with a screw rod, the bottom end of the screw rod extends to the bottom of the bottom tube of the placement mechanism and is fixedly connected with a third gear, and the top end of the screw rod extends to the top of the cross plate and is threadedly connected with a fixing mechanism.

[0012] As a further solution of the present invention: the fixing mechanism includes a lifting tube, the inner wall of the lifting tube is threadedly connected to the outer wall of the screw rod, the four sides of the outer wall of the lifting tube are respectively fixedly connected with rotating rod connecting rods, the upper and lower sides of the outer walls of the four rotating rod connecting rods are rotatably connected with rotating rods, the four groups of rotating rods are rotatably connected to the fixed plate connecting rods on the side away from the rotating rod connecting rods, the four fixed plate connecting rods are fixedly connected to the fixing plates on the side away from the lifting tube, the four fixed plate connecting rods are fixedly connected to the bottom of the side close to the fixed plate connecting rod, and the outer walls of the four sliders are slidably connected to the inner wall of the slide groove.

[0013] As a further solution of the present invention: the welding mechanism includes a vertical plate, the front bottom of the vertical plate is fixedly connected to a hydraulic push rod motor, the output end of the hydraulic push rod motor is fixedly connected to a hydraulic push rod, the top of the vertical plate is fixedly connected to a hinge block, the left and right sides of the hinge block are respectively provided with hinge block slide grooves, and the inner sides of the two hinge block slide grooves are provided with slide rod grooves.

[0014] As a further scheme of the present invention: the top end of the hydraulic push rod is fixedly connected with a U-shaped push-pull plate, the inner side of the U-shaped push-pull plate is fixedly connected with a sliding rod, the left and right sides of the top of the U-shaped push-pull plate are respectively slidably connected to the inner walls of the two hinge block slide grooves, the left and right sides of the outer wall of the slide rod are respectively slidably connected to the inner walls of the two slide rod grooves, the front side of the inner wall of the hinge block is rotatably connected with a welding gun rotating rod, the rear side of the welding gun rotating rod is fixedly connected with a rotating rod push-pull block, the inner wall of the rotating rod push-pull block is slidably connected to the outer wall of the sliding rod, the front side of the welding gun rotating rod is fixedly connected with a welding gun connecting block, and the front side of the welding gun connecting block is fixedly connected to a welding gun.

[0015] The beneficial effects of the present invention are: 1. The present invention realizes automation and high efficiency in the welding process of lithium battery metal shell by providing a control mechanism and a metal shell placement mechanism. Specifically, the control mechanism constructs a precise transmission system through its internal mechanical structure, such as a rotating rod motor, a connecting column, a connecting rod, a slide plate, an inner rotating plate, a tooth block, a gear, a second gear connecting rod and a second gear. This system can accurately control the position and posture of the metal shell placement mechanism, thereby avoiding the cumbersome steps of frequent manual installation and removal of lithium battery shells in the traditional welding process; 2. The present invention is provided with a control mechanism. Specifically, when the rotating rod motor is started, it will drive the rotating rod to rotate, and then through the interaction of the connecting cross bar, the inner turntable and the tooth block, the two second gears will rotate relative to each other. This rotational motion is transmitted to the outer turntable through the connecting rod, so that the outer turntable can perform a circular motion around the connecting column. At the same time, the meshing relationship between the outer turntable tooth block on the outer turntable and the second gear ensures that the outer turntable can maintain a stable posture during the rotation process, thereby driving the connecting disk and the multiple metal shell placement mechanisms thereon to move synchronously.

[0016] 3. The present invention is provided with a metal shell placement mechanism. Specifically, the bottom tube of each placement mechanism is fixed on the outer turntable through the placement mechanism connecting tube and moves with the rotation of the outer turntable. More importantly, each placement mechanism is designed with components such as a screw rod, a lifting tube, a rotating rod, and a fixed plate to form a flexible fixing mechanism. When it rotates to the bottom of the welding mechanism, the third gear will rotate through the engagement of the fan-shaped teeth, thereby driving the screw rod to rotate and drive the lifting tube to move up and down, and then drive the fixed plate to shrink inward or expand outward through the rotating rod and the fixed plate connecting rod, so as to achieve a firm clamping of the metal shell. This design not only ensures the stability during the welding process, but also makes the loading and unloading of the metal shell faster and more convenient. After the welding is completed, the metal shell placement mechanism can automatically adjust to a suitable position through the engagement of the second fan-shaped teeth, which is convenient for the rapid removal of the welded product and the preparation of the next batch, realizing the automation and efficiency of the lithium battery metal shell welding, which not only reduces manual intervention, but also significantly improves production efficiency and welding quality.

[0017] 4. The present invention is provided with a welding mechanism. When welding is completed, the hydraulic push rod motor receives a stop command, drives the hydraulic push rod and the U-shaped push-pull plate to move downward, and the slide rod slides in the groove, pulling the rotating rod push-pull block to rotate the welding gun rotating rod, the welding gun connecting block and the welding gun to the top of the hinge block. The welding gun is safely stored above the hinge block to avoid accidental injury and damage in the non-working state. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the main three-dimensional structure of the present invention; Figure 2It is a schematic diagram of the three-dimensional structure of the control mechanism and the metal shell placement mechanism of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the control mechanism of the present invention; Figure 4 It is a schematic diagram of a three-dimensional cross-sectional structure of the control mechanism of the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of the connecting disk and the outer rotating disk of the present invention; Figure 6 It is a schematic diagram of the three-dimensional structure of the metal shell placement mechanism of the present invention; Figure 7 It is a schematic diagram of the three-dimensional separation structure of the bottom tube of the placement mechanism and the fixing mechanism of the present invention; Figure 8 It is a schematic diagram of the three-dimensional structure of the fixing mechanism of the present invention; Fig. 9 It is a schematic diagram of the three-dimensional separation structure of the welding mechanism of the present invention.

[0019] In the figure: 1. base; 2. control mechanism; 21. control mechanism base; 22. connecting column; 23. connecting rod; 24. slide plate; 25. sector tooth connecting block; 26. sector tooth; 27. L-shaped sector tooth connecting rod; 28. second sector tooth placement block; 29. ​​second sector tooth; 210. rotating rod motor; 211. rotating rod; 212. connecting cross bar; 213. inner rotating disk; 214. tooth block; 215. gear; 216. second gear connecting rod; 217. second gear; 218. connecting disk; 219. outer rotating disk; 220. outer rotating disk tooth block; 221. connecting frame; 222. placing mechanism connecting pipe; 3. metal Shell placement mechanism; 31. Placement mechanism bottom tube; 32. Cross plate; 33. Slide groove; 34. Screw rod; 35. Third gear; 36. Fixing mechanism; 361. Lifting tube; 362. Rotating rod connecting rod; 363. Rotating rod; 364. Fixed plate connecting rod; 365. Fixed plate; 366. Sliding block; 4. Welding mechanism; 41. Vertical plate; 42. Hydraulic push rod motor; 43. Hydraulic push rod; 44. U-shaped push-pull plate; 45. Slide rod; 46. Articulated block; 47. Articulated block slide groove; 48. Slide rod groove; 49. Welding gun rotating rod; 410. Rotating rod push-pull block; 411. Welding gun connecting block; 412. Welding gun. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] like Figure 1-9 As shown, the present invention provides a battery metal shell welding device, including a base 1, a control mechanism 2 is fixedly connected to the top front side of the base 1, a plurality of metal shell placement mechanisms 3 are fixedly connected to the outer wall annular array of the control mechanism 2, and a welding mechanism 4 is fixedly connected to the top rear side of the base 1.

[0022] like Figure 2-8As shown, the control mechanism 2 includes a control mechanism base 21, the top of the control mechanism base 21 is fixedly connected with a connecting column 22, the outer wall of the connecting column 22 is fixedly connected with a connecting rod 23, the bottom of the connecting rod 23 is fixedly connected with a slide plate 24, the bottom of the inner wall of the control mechanism base 21 is fixedly connected with a rotating rod motor 210, the middle of the inner wall of the connecting column 22 is fixedly connected with a connecting cross bar 212, the output end of the rotating rod motor 210 is fixedly connected with a rotating rod 211, the top of the rotating rod 211 extends to the inner wall of the connecting column 22, the middle of the outer wall of the rotating rod 211 is rotatably connected to the middle of the inner wall of the connecting cross bar 212, the top of the connecting cross bar 212 is rotatably connected to the inner rotating disk 213, and the outer wall of the rotating rod 211 is fixedly connected to the inner rotating disk 213 on one side away from the connecting cross bar 212. The inner wall of the rotating disk 213 and the top annular array of the inner rotating disk 213 are fixedly connected with a plurality of tooth blocks 214, the top two sides of the plurality of tooth blocks 214 are respectively meshed with gears 215, the opposite surfaces of the two gears 215 are fixedly connected with second gear connecting rods 216, the opposite ends of the two second gear connecting rods 216 extend to the outer wall of the connecting column 22 and are fixedly connected with second gears 217, the bottom of the slide plate 24 is fixedly connected with a sector tooth connecting block 25, the side of the sector tooth connecting block 25 away from the slide plate 24 is fixedly connected with a sector tooth 26, the bottom of the slide plate 24 away from the side of the sector tooth connecting block 25 is fixedly connected with an L-shaped sector tooth connecting rod 27, the side of the L-shaped sector tooth connecting rod 27 away from the slide plate 24 is fixedly connected with a second sector tooth placement Block 28, the second sector-shaped tooth placement block 28 is fixedly connected with a second sector-shaped tooth 29 on one side close to the slide plate 24, the top inner wall of the connecting rod 23 is rotatably connected with an outer turntable 219, the inner wall of the outer turntable 219 is hollowed out, the inner wall of the outer turntable 219 is rotatably connected to the outer wall of the connecting column 22, the outer wall of the outer turntable 219 is fixedly connected with a connecting plate 218, the top annular array of the outer turntable 219 is fixedly connected with a plurality of outer turntable tooth blocks 220, the top two sides of the plurality of outer turntable tooth blocks 220 are respectively meshed with the outer walls of the two second gears 217, the top annular array of the connecting plate 218 is fixedly connected with a plurality of connecting frames 221, and the plurality of connecting frames 221 are fixedly connected with a placement mechanism connecting tube 222 on one side away from the connecting plate 218, and a plurality of metal The outer shell placement mechanism 3 includes a placement mechanism bottom tube 31, the outer walls of multiple placement mechanism bottom tubes 31 are fixedly connected to the inner wall of the placement mechanism connecting tube 222, the top of the placement mechanism bottom tube 31 is fixedly connected with a cross plate 32, the top four sides of the cross plate 32 are respectively provided with sliding grooves 33, the inner wall of the placement mechanism bottom tube 31 is rotatably connected with a screw rod 34, the bottom end of the screw rod 34 extends to the bottom of the placement mechanism bottom tube 31 and is fixedly connected with a third gear 35, the top end of the screw rod 34 extends to the top of the cross plate 32 and is threadedly connected with a fixing mechanism 36, the fixing mechanism 36 includes a lifting tube 361, the inner wall of the lifting tube 361 is threadedly connected to the outer wall of the screw rod 34, and the four sides of the outer wall of the lifting tube 361 are respectively fixedly connected with a rotating rod connecting rod 362.The upper and lower sides of the outer walls of the four rotating rod connecting rods 362 are all rotatably connected with rotating rods 363, the sides of the four groups of rotating rods 363 away from the rotating rod connecting rods 362 are all rotatably connected with fixed plate connecting rods 364, the sides of the four fixed plate connecting rods 364 away from the lifting tube 361 are all fixedly connected with fixed plates 365, the bottoms of the four fixed plate connecting rods 364 close to the fixed plate connecting rods 364 are all fixedly connected with sliders 366, and the outer walls of the four sliders 366 are all slidably connected to the inner wall of the slide groove 33; When the lithium battery metal shell needs to be welded, the lithium battery metal shell is first placed in each metal shell placement mechanism 3. Specifically, the bottom of the shell is aligned with the bottom tube 31 of the placement mechanism, and gently pressed down to make the bottom of the shell contact with the cross plate 32. Then, the rotating rod motor 210 in the control mechanism 2 is started, and the motor drives the rotating rod 211 to rotate, and then drives the two gears 215 and the second gear 217 to rotate through the meshing action of the inner turntable 213 and the tooth block 214. In this process, the outer turntable 219 realizes rotational movement through the meshing relationship between the outer turntable tooth block 220 and the second gear 217, and drives the connecting disk 218 and all the connecting frames 221 and the placement mechanism connecting tube 222 to rotate synchronously. In this way, each metal shell placement mechanism 3 can perform circular motion around the central axis of the control mechanism 2, and realize the function of automatically positioning below the welding mechanism 4; At the same time, when it is rotated to the bottom of the welding mechanism 4, in order to more accurately fix the lithium battery metal shell, when any metal shell placement mechanism 3 is rotated to the bottom of the welding mechanism 4, the third gear 35 will mesh with the fan-shaped teeth 26, so that the third gear 35 rotates, and the screw rod 34 is driven by the third gear 35 to rotate, and the lifting tube 361 can be moved up and down. The lifting tube 361 moves up and down, and the fixed plate connecting rod 364 and the fixed plate 365 are moved closer to the center or expanded outward through the transmission of the rotating rod connecting rod 362 and the rotating rod 363 to adapt to lithium battery metal shells of different sizes. The slider 366 on the fixed plate 365 slides in the slide groove 33 to ensure that the fixed plate 365 can move smoothly and firmly clamp the shell to prevent displacement during the welding process; When welding is completed, the control mechanism 2 continues to work, driving each metal shell placement mechanism 3 to perform circular motion, bringing the welded lithium battery metal shell away from under the welding mechanism 4, and engaging the other side of the third gear 35 through the second sector tooth 29 to achieve reverse rotation, so that the screw rod 34 is reversed, and the clamping of the lithium battery metal shell is released, allowing the shell to smoothly detach from the metal shell placement mechanism 3. The staff can remove the currently welded lithium battery metal shell while the previous lithium battery metal shell is being welded, and place the next shell to be welded into the idle metal shell placement mechanism 3. Such a cyclic operation not only greatly improves the production efficiency, but also ensures the continuity and stability of the welding process.

[0023] like Fig. 9 As shown, the welding mechanism 4 includes a vertical plate 41, a hydraulic push rod motor 42 is fixedly connected to the front bottom of the vertical plate 41, a hydraulic push rod 43 is fixedly connected to the output end of the hydraulic push rod motor 42, a hinge block 46 is fixedly connected to the top of the vertical plate 41, and hinge block slide grooves 47 are respectively provided on the left and right sides of the hinge block 46, and slide rod grooves 48 are provided on the inner sides of the two hinge block slide grooves 47, and a U-shaped push-pull plate 44 is fixedly connected to the top of the hydraulic push rod 43, and a slide rod 45 is fixedly connected to the inner side of the U-shaped push-pull plate 44. The left and right sides are respectively slidably connected to the inner walls of the two hinge block slide grooves 47, the left and right sides of the outer wall of the slide rod 45 are respectively slidably connected to the inner walls of the two slide rod grooves 48, the front side of the inner wall of the hinge block 46 is rotatably connected to the welding gun rotating rod 49, the rear side of the welding gun rotating rod 49 is fixedly connected to the rotating rod push-pull block 410, the inner wall of the rotating rod push-pull block 410 is slidably connected to the outer wall of the slide rod 45, the front side of the welding gun rotating rod 49 is fixedly connected to the welding gun connecting block 411, and the front side of the welding gun connecting block 411 is fixedly connected to the welding gun 412; When welding is completed and no further welding is needed, the hydraulic push rod motor 42 receives a stop command, and its output end begins to retract, driving the hydraulic push rod 43 and the U-shaped push-pull plate 44 connected thereto to move downward. As the U-shaped push-pull plate 44 descends, the slide bar 45 slides smoothly in the slide bar groove 48, and pulls the rotating rod push-pull block 410 to drive the welding gun rotating rod 49 to rotate, so that the welding gun connecting block 411 rotates and drives the welding gun 412 to rotate to the top of the hinge block 46. At this time, the welding gun 412 has completed the welding operation and is safely stored above the hinge block 46, away from the working area, avoiding accidental injuries and damages in the non-working state; At this point, the entire welding process is completed, and the welding mechanism 4 enters a standby state, waiting for the next welding instruction. During this period, the staff can safely check and maintain the welding equipment to ensure its normal operation in subsequent work. At the same time, the welded lithium battery metal shells can be removed one by one for subsequent quality inspection and assembly processes.

[0024] Working principle of the present invention: When the lithium battery metal shell needs to be welded, the lithium battery metal shell is first placed in each metal shell placement mechanism 3. Specifically, the bottom of the shell is aligned with the bottom tube 31 of the placement mechanism, and gently pressed down to make the bottom of the shell contact with the cross plate 32. Then, the rotating rod motor 210 in the control mechanism 2 is started, and the motor drives the rotating rod 211 to rotate, and then through the meshing action of the inner rotating disk 213 and the tooth block 214, the two gears 215 and the second gear 217 are driven to rotate. In this process, the outer rotating disk 219 is meshed with the outer rotating disk tooth block 220 and the second gear 217. The connection mechanism 218 and all the connection frames 221 and the placement mechanism connection tube 222 are connected to each other to realize rotational motion, and drive the connection plate 218 and all the connection frames 221 and the placement mechanism connection tube 222 to rotate synchronously, so that each metal shell placement mechanism 3 can perform circular motion around the central axis of the control mechanism 2 to realize the function of automatically positioning under the welding mechanism 4. At the same time, when it is rotated to the bottom of the welding mechanism 4, in order to more accurately fix the lithium battery metal shell, when any metal shell placement mechanism 3 is rotated to the bottom of the welding mechanism 4, the third gear 35 will mesh with the sector tooth 26, so that the third gear 35 rotates, and the screw rod 34 passes through the third gear 35. The driven rotation of the gear 35 can move the lifting tube 361 up and down. The up and down movement of the lifting tube 361, through the transmission of the rotating rod connecting rod 362 and the rotating rod 363, makes the fixed plate connecting rod 364 and the fixed plate 365 move toward the center or expand outward to adapt to lithium battery metal shells of different sizes. The slider 366 on the fixed plate 365 slides in the slide groove 33 to ensure that the fixed plate 365 can move smoothly and firmly clamp the shell to prevent displacement during the welding process. When the welding is completed, the control mechanism 2 continues to work and drives each metal shell placement mechanism 3 to perform a circular motion. The welded lithium battery metal shell is taken away from the bottom of the welding mechanism 4, and the second sector tooth 29 is meshed with the other side of the third gear 35 to achieve reverse rotation, so that the screw rod 34 is reversed, and the clamping of the lithium battery metal shell is released, allowing the shell to smoothly detach from the metal shell placement mechanism 3. The staff can remove the currently welded lithium battery metal shell while the previous lithium battery metal shell is being welded, and place the next shell to be welded into the idle metal shell placement mechanism 3. Such a cyclic operation not only greatly improves the production efficiency, but also ensures the continuity and stability of the welding process; When welding is completed and no further welding is required, the hydraulic push rod motor 42 receives a stop command, and its output end begins to retract, driving the hydraulic push rod 43 and the U-shaped push-pull plate 44 connected thereto to move downward. As the U-shaped push-pull plate 44 descends, the slide bar 45 slides smoothly in the slide bar groove 48, and pulls the rotating rod push-pull block 410 to drive the welding gun rotating rod 49 to rotate, so that the welding gun connection block 411 rotates and drives the welding gun 412 to rotate to the top of the hinge block 46. At this time, the welding gun 412 has completed the welding operation and is safely stored above the hinge block 46, away from the working area, avoiding accidental injuries and damage in the non-working state. At this time, the entire welding process is completed, and the welding mechanism 4 enters the standby state, waiting for the next welding instruction. During this period, the staff can safely check and maintain the welding equipment to ensure its normal operation in subsequent work. At the same time, the welded lithium battery metal shells can be removed one by one for subsequent quality inspection and assembly processes.

[0025] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change; Secondly: In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other; The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A battery metal shell welding device, comprising a base (1), characterized in that: The top front side of the base (1) is fixedly connected to a control mechanism (2), a plurality of metal shell placement mechanisms (3) are fixedly connected to an annular array of the outer wall of the control mechanism (2), and the top rear side of the base (1) is fixedly connected to a welding mechanism (4); The control mechanism (2) comprises a control mechanism base (21), the top of the control mechanism base (21) is fixedly connected to a connecting column (22), the outer wall of the connecting column (22) is fixedly connected to a connecting rod (23), the bottom of the connecting rod (23) is fixedly connected to a slide plate (24), and the bottom of the inner wall of the control mechanism base (21) is fixedly connected to a rotating rod motor (210); A connecting cross bar (212) is fixedly connected to the middle of the inner wall of the connecting column (22); a rotating rod (211) is fixedly connected to the output end of the rotating rod motor (210); a top end of the rotating rod (211) extends to the inner wall of the connecting column (22); a middle part of the outer wall of the rotating rod (211) is rotatably connected to the middle part of the inner wall of the connecting cross bar (212); an inner rotating disk (213) is rotatably connected to the top of the connecting cross bar (212); a side of the outer wall of the rotating rod (211) away from the connecting cross bar (212) is fixedly connected to the inner wall of the inner rotating disk (213); and a plurality of tooth blocks (214) are fixedly connected to the top annular array of the inner rotating disk (213).

2. A battery metal shell welding device according to claim 1, characterized in that: The top sides of the plurality of tooth blocks (214) are respectively engaged with gears (215); the opposite surfaces of the two gears (215) are fixedly connected to a second gear connecting rod (216); the opposite ends of the two second gear connecting rods (216) extend to the outer wall of the connecting column (22) and are fixedly connected to a second gear (217).

3. The battery metal shell welding equipment according to claim 1, characterized in that: A fan-shaped tooth connection block (25) is fixedly connected to the bottom of the slide plate (24); a fan-shaped tooth (26) is fixedly connected to the side of the fan-shaped tooth connection block (25) away from the slide plate (24); an L-shaped fan-shaped tooth connection rod (27) is fixedly connected to the side of the bottom of the slide plate (24) away from the fan-shaped tooth connection block (25); a second fan-shaped tooth placement block (28) is fixedly connected to the side of the L-shaped fan-shaped tooth connection rod (27) away from the slide plate (24); and a second fan-shaped tooth (29) is fixedly connected to the side of the second fan-shaped tooth placement block (28) close to the slide plate (24).

4. The battery metal shell welding equipment according to claim 1, characterized in that: The top inner wall of the connecting rod (23) is rotatably connected to an outer turntable (219), the inner wall of the outer turntable (219) is of a hollow design, the inner wall of the outer turntable (219) is rotatably connected to the outer wall of the connecting column (22), the outer wall of the outer turntable (219) is fixedly connected to a connecting disk (218), a plurality of outer turntable tooth blocks (220) are fixedly connected to the top annular array of the outer turntable (219), the top two sides of the plurality of outer turntable tooth blocks (220) are respectively meshed with the outer walls of two second gears (217), a plurality of connecting frames (221) are fixedly connected to the top annular array of the connecting disk (218), and a placement mechanism connecting tube (222) is fixedly connected to the side of the plurality of connecting frames (221) away from the connecting disk (218).

5. The battery metal shell welding equipment according to claim 1, characterized in that: The plurality of metal shell placement mechanisms (3) all comprise a placement mechanism bottom tube (31), and the outer walls of the plurality of placement mechanism bottom tubes (31) are all fixedly connected to the inner wall of the placement mechanism connecting tube (222).

6. A battery metal shell welding device according to claim 5, characterized in that: The top of the bottom tube (31) of the placement mechanism is fixedly connected to a cross plate (32), and the four sides of the top of the cross plate (32) are respectively provided with sliding grooves (33). The inner wall of the bottom tube (31) of the placement mechanism is rotatably connected to a screw rod (34), the bottom end of the screw rod (34) extends to the bottom of the bottom tube (31) of the placement mechanism and is fixedly connected to a third gear (35), and the top end of the screw rod (34) extends to the top of the cross plate (32) and is threadedly connected to a fixing mechanism (36).

7. A battery metal shell welding device according to claim 6, characterized in that: The fixing mechanism (36) comprises a lifting tube (361), the inner wall of the lifting tube (361) being threadedly connected to the outer wall of the screw rod (34), the four sides of the outer wall of the lifting tube (361) being fixedly connected to rotating rod connecting rods (362), the upper and lower sides of the outer walls of the four rotating rod connecting rods (362) being rotatably connected to rotating rods (363), the sides of the four groups of rotating rods (363) away from the rotating rod connecting rods (362) being rotatably connected to fixed plate connecting rods (364), the sides of the four fixed plate connecting rods (364) away from the lifting tube (361) being fixedly connected to fixed plates (365), the bottoms of the sides of the four fixed plate connecting rods (364) close to the fixed plate connecting rods (364) being fixedly connected to sliders (366), and the outer walls of the four sliders (366) being slidably connected to the inner wall of the slide groove (33).

8. The battery metal shell welding equipment according to claim 1, characterized in that: The welding mechanism (4) comprises a vertical plate (41), the front bottom of the vertical plate (41) is fixedly connected to a hydraulic push rod motor (42), the output end of the hydraulic push rod motor (42) is fixedly connected to a hydraulic push rod (43), the top of the vertical plate (41) is fixedly connected to a hinge block (46), the left and right sides of the hinge block (46) are respectively provided with hinge block slide grooves (47), and the inner sides of the two hinge block slide grooves (47) are both provided with slide rod grooves (48).

9. A battery metal shell welding device according to claim 8, characterized in that: The top end of the hydraulic push rod (43) is fixedly connected to a U-shaped push-pull plate (44), the inner side of the U-shaped push-pull plate (44) is fixedly connected to a slide bar (45), the left and right sides of the top of the U-shaped push-pull plate (44) are respectively slidably connected to the inner walls of two hinge block slide grooves (47), the left and right sides of the outer wall of the slide bar (45) are respectively slidably connected to the inner walls of two slide bar grooves (48), the front side of the inner wall of the hinge block (46) is rotatably connected to a welding gun rotating rod (49), the rear side of the welding gun rotating rod (49) is fixedly connected to a rotating rod push-pull block (410), the inner wall of the rotating rod push-pull block (410) is slidably connected to the outer wall of the slide bar (45), the front side of the welding gun rotating rod (49) is fixedly connected to a welding gun connecting block (411), and the front side of the welding gun connecting block (411) is fixedly connected to a welding gun (412).

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