Square flanging riveting extremely simple top cover structure and machining device thereof

Abstract

The invention discloses a square flanging-riveting extremely-simple top cover structure and a processing device thereof, and belongs to the related field of battery cover plates, the square flanging-riveting extremely-simple top cover structure comprises a top cover piece and a stop frame, the stop frame is fixedly mounted on the outer surface of the lower end of the top cover piece, and an anti-explosion piece is mounted in the middle position between the top cover piece and the stop frame; an anti-explosion patch matched with the anti-explosion piece for use is arranged on the outer surface of the upper end of the top cover piece, a positive injection molding piece is sleeved with the position, located on one side of the anti-explosion patch, in the top cover piece, a negative injection molding piece is sleeved with the position, located on the other side of the anti-explosion patch, in the top cover piece, a positive pole is sleeved with the middle of the positive injection molding piece, and a negative pole is sleeved with the middle of the negative injection molding piece. The middle part of the negative injection molding part is sleeved with a negative pole post; the top ends of the positive pole post and the negative pole post are pressed and fixed in a riveting manner; the end parts of the negative pole and the positive pole are processed in a riveting manner, so that the negative pole and the positive pole are sealed and fixed, and meanwhile, the processing precision and efficiency are improved.

Description

Technical Field

[0001] The present invention belongs to the field related to battery cover plates, and more specifically relates to a square riveted minimalist top cover structure and a processing device thereof. Background Art

[0002] The square flip-riveted minimalist top cover structure is a battery cover, which refers to a plate-shaped material used to cover the battery. It is usually used to wrap and protect the battery shell. Its main function is to connect the battery and protect the battery from the external environment, such as preventing dust, liquid and other debris from entering the battery to ensure the stability and reliability of the battery. In addition, the battery cover also helps to regulate the temperature of the battery, preventing the battery from overheating or overcooling, thereby extending the battery life.

[0003] The application document with the publication number CN116435725A records a battery top cover and a battery, including a top cover body, a conductive component, a seal and a sealing ring. The top cover body is provided with a mounting hole, and the conductive component includes a pole, which is passed through the mounting hole. The pole is provided with an injection hole, which passes through both ends of the pole. The seal can be blocked in the injection hole, and the length of the seal in the first direction is less than the length of the pole in the first direction, and the first direction is parallel to the axial direction of the injection hole. The sealing ring is sleeved outside the pole to seal the gap between the pole and the mounting hole. The battery top cover not only avoids the seal occupying the capacity of the battery core by opening the injection hole on the pole, thereby reducing the volume of the battery, but also avoids the seal interfering with the electrode assembly, thereby ensuring the safety of the battery.

[0004] Traditional battery top covers have certain shortcomings in use and processing. The pole structure of traditional battery top covers is usually fixed by welding or injection molding, which is complicated to operate and needs to consider the material properties of the top cover sheet, making it impossible to quickly complete the processing of the battery top cover. Summary of the invention

[0005] The purpose of the present invention is to provide a square riveted minimalist top cover structure and a processing device thereof, which can solve the existing problems.

[0006] The problem to be solved by the present invention is:

[0007] 1. The pole structure of the traditional battery top cover is usually fixed by welding or injection molding, which is complicated to operate and needs to consider the material properties of the top cover sheet, so the processing operation of the battery top cover cannot be completed quickly.

[0008] The purpose of the present invention can be achieved through the following technical solutions:

[0009] A square flip-riveted minimalist top cover structure comprises a top cover sheet and a stop frame, wherein the stop frame is fixedly mounted on the outer surface of the lower end of the top cover sheet, an explosion-proof sheet is mounted at the middle position between the top cover sheet and the stop frame, an explosion-proof patch is arranged on the outer surface of the upper end of the top cover sheet for use with the explosion-proof sheet, a positive electrode injection molding is sleeved on one side of the explosion-proof patch inside the top cover sheet, a negative electrode injection molding is sleeved on the other side of the explosion-proof patch inside the top cover sheet, a positive electrode column is sleeved on the middle part of the positive electrode injection molding, a negative electrode column is sleeved on the middle part of the negative electrode injection molding, and the top ends of the positive electrode column and the negative electrode column are press-fitted and fixed by flip-riveting.

[0010] A processing equipment for a square flip-riveted minimalist top cover structure comprises a fixed base and two sets of press-assemblers, the two sets of press-assemblers are movably mounted on the inner side of the upper end of the fixed base, a positioning frame is fixedly mounted on the inner side of the fixed base below the two sets of press-assemblers, a movable clamp is movably mounted on the inner side of the positioning frame, and the movable clamp can be used to complete a secondary movement of the top cover structure, so that the top cover structure is moved to the bottom of the two sets of press-assemblers respectively, and the two sets of press-assemblers are used to complete the double flip-riveting stamping of the positive pole and the negative pole in turn.

[0011] As a further technical solution of the present invention, the overall positioning frame is a convex-shaped structure, electric buckles are installed on both sides of the positioning frame, and a plurality of rollers are movably installed on the outer surface of the positioning frame. The user pushes the mobile fixture into the positioning frame, and the convex-structured positioning frame has two sets of positioning structures on its inner side. When the inner frame of the mobile fixture enters the positioning frame, the electric buckle is used to limit and fix the inner frame. Fig. 9 As shown in A, at this time, the top cover piece installed on the inner frame is located below a group of press fitters, and the electric buckle is driven by a motor and a screw rod. When the electric buckle is opened, the inner frame can be moved a second time, thereby moving to the end of the positioning frame, so that the top cover piece installed on the inner frame is located below another group of press fitters, as shown in FIG. Fig. 9 As shown in B, it is convenient for secondary stamping.

[0012] As a further technical solution of the present invention, the movable clamp includes an inner frame and an outer frame. The inner frame is movably installed on the inner side of the outer frame, and the inner frame and the outer frame are slidably connected by a limiting slide groove. By utilizing the setting of the outer frame, the inner frame can move inside the outer frame. When the inner frame and the outer frame overlap with each other, the inner frame is located below one group of press assemblers, and when the inner frame is pushed out from the inside of the outer frame, the inner frame is located below another group of press assemblers.

[0013] As a further technical solution of the present invention, a push-pull rod is fixedly installed on the middle position of the outer surface of one end of the inner frame, and the push-pull rod passes through the middle position of the outer frame. Two groups of top blocks used in conjunction with the electric buckle are fixedly installed on the outer surface of the other end of the inner frame. The setting of the top blocks can play an auxiliary limiting role on the inner frame, so that the inner frame and the outer frame overlap with each other. Secondly, the push-pull rod can be used to push the inner frame so that the inner frame moves inside the outer frame.

[0014] As a further technical solution of the present invention, the press assembler includes a lifting rod and a lifting plate, the lifting plate is located at the middle position of the lower end of the lifting rod, and two groups of punching heads are fixedly installed at the lower end of the lifting plate. The lifting rod is used to drive the lifting plate, so that the lifting plate drives the two groups of punching heads to move downward at the same time, so that the two groups of punching heads respectively complete one punching of the ends of the positive pole column and the negative pole column. The riveting structure of the ends of the positive pole column and the negative pole column requires two punching shaping. The first punching is to press the ends of the positive pole column and the negative pole column into a trumpet-shaped structure, so that the ends of the positive pole column and the negative pole column are bent and deformed outward, and the second punching is to press down the trumpet-shaped ends of the positive pole column and the negative pole column, and the ends of the positive pole column and the negative pole column are turned outward and flattened to complete their fixing operation. The punching head is provided with two specifications, the lower end of one punching head is a truncated cone structure, and the lower end of the other punching head is a plane structure.

[0015] As a further technical solution of the present invention, the upper end of the lifting plate is located on both sides of the lifting rod and is fixedly installed with lifting guide rods. The outer surface of the lifting guide rod is movably sleeved with a lifting sleeve. The lifting sleeve is combined with the lifting guide rod to make the lifting plate move up and down vertically, thereby improving the docking accuracy of the punching head at the bottom of the lifting plate.

[0016] As a further technical solution of the present invention, two groups of punching heads are movably installed on the inner side of the lifting plate, and the lifting plate and the two groups of punching heads are movably connected by a rotating rod. One end of the punching head is a truncated cone structure, and the other end of the punching head is a planar structure. The punching head of the press adopts a flip structure design, and both ends of the punching head are set to different structures. The rotating rod is used to drive the two groups of punching heads to rotate to complete the adjustment of the punching structure.

[0017] As a further technical solution of the present invention, two groups of arc-shaped clips are movably installed on the inner side of the lifting plate for use with the punching head. The lifting plate and the arc-shaped clips are driven by a cylinder. When the punching head completes the flipping adjustment, the cylinder is used to drive the arc-shaped clips so that the two groups of arc-shaped clips are respectively clamped on both sides of the punching head to complete the limiting fixation of the punching head.

[0018] As a further technical solution of the present invention, a motor is provided at one end of the rotating rod, and the rotating rod and the motor are driven by gears. The motor drives the gears to drive the rotating rod, and the rotating rod is used to rotate and adjust the two groups of punching heads.

[0019] Beneficial effects of the present invention:

[0020] 1. When processing the square riveted minimalist top cover structure, the ends of the negative pole and the positive pole are processed by riveting, so that the negative pole and the positive pole are sealed and fixed, replacing the traditional welding or injection molding fixing method, and improving its processing efficiency;

[0021] During the operation, the processing of the positive electrode injection molded part and the negative electrode injection molded part on the top cover sheet must be completed first, so that the positive electrode injection molded part and the negative electrode injection molded part are sleeved in the two round holes of the top cover sheet, and the positive electrode column and the negative electrode column are respectively passed through the positive electrode injection molded part and the negative electrode injection molded part, and the positive electrode column and the negative electrode column with the added positive electrode column and the negative electrode column are placed in the processing device, and the ends of the positive electrode column and the negative electrode column are riveted by stamping. The ends of the positive electrode column and the negative electrode column need to be stamped twice. During the first stamping, use The lifting rod cooperates with the lifting plate to drive the punch head with a truncated cone structure at the bottom to move downward, so that the punch head punches the ends of the positive electrode column and the negative electrode column into an outward-turned structure. At this time, another set of presses are used to process it. Another set of lifting rods cooperates with the lifting plate to drive the punch head with a planar structure at the bottom to move downward, thereby flattening the outward-turned structure at the ends of the positive electrode column and the negative electrode column, so that one end of the positive electrode column and the negative electrode column is buckled on the ends of the positive injection molded part and the negative injection molded part, completing the riveting process.

[0022] 2. By setting a positioning frame and a mobile fixture, the square flip riveted minimalist top cover structure is provided with an auxiliary feeding structure during riveting, thereby improving the efficiency and processing accuracy during continuous stamping operation and the riveting processing effect;

[0023] When in use, the mobile fixture can be used to complete the secondary movement of the top cover structure, so that the top cover structure can be accurately and quickly moved to the bottom of the two sets of press assemblers, and the two sets of press assemblers are used to complete the double riveting and stamping of the positive pole and the negative pole in turn. The positioning frame of the convex structure has two sets of positioning structures on its inner side. When the inner frame of the mobile fixture enters the positioning frame, the electric buckle is used to limit and fix the inner frame, such as Fig. 9 As shown in A, at this time, the top cover piece installed on the inner frame is located below a group of press assemblers, and the electric buckle is driven by a motor and a screw rod. When the electric buckle is opened, the inner frame can be moved a second time, thereby moving to the end of the positioning frame, so that the top cover piece installed on the inner frame is located below another group of press assemblers. At this time, Fig. 9As shown in B, it is convenient for secondary stamping and avoids the top cover sheet from tilting during movement. The outer frame is arranged so that the inner frame can move inside the outer frame. When the inner frame and the outer frame overlap each other, the inner frame is located below one set of presses. When the inner frame is pushed out from the inside of the outer frame, the inner frame is located below another set of presses, so that the mobile fixture can complete the two movements of the top cover sheet, thereby improving its processing effect.

[0024] 3. By setting a punch head and a rotating rod, when the square flip-riveted minimalist top cover structure is riveted, it has a flip-type punching adjustment structure, and the punch head can be used to complete two different riveting punching shaping, thereby reducing its processing cost;

[0025] During operation, the punching head of the press assembler adopts a flipping structure design, and both ends of the punching head are set to different structures. The rotating rod is used to drive the two groups of punching heads to rotate to complete the adjustment of the punching structure. The motor is used to drive the gear, thereby driving the rotating rod, and the two groups of punching heads are rotated and adjusted by the rotating rod. One end of the punching head is a truncated cone structure, and the other end of the punching head is a flat structure. The first punching is to press the ends of the positive pole and the negative pole into a trumpet-shaped outward-turned structure, so that the ends of the positive pole and the negative pole are bent and deformed outward. The second punching is to press down the trumpet-shaped ends of the positive pole and the negative pole, and turn the ends of the positive pole and the negative pole outward and flatten them to complete the fixing operation. When the punching head completes the flipping adjustment, the cylinder is used to drive the arc clamping plate, so that the two groups of arc clamping plates are respectively clamped on both sides of the punching head to complete the limit fixation of the punching head. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention will be further described below in conjunction with the accompanying drawings.

[0027] Figure 1 It is a schematic diagram of the overall structure of a square flip-riveted minimalist top cover structure of the present invention;

[0028] Figure 2 It is a cross-sectional view of a square flip-riveted minimalist top cover structure of the present invention;

[0029] Figure 3 It is an overall structural diagram of a processing device for a square flip-riveted minimalist top cover structure of the present invention;

[0030] Figure 4 It is an overall structural diagram of a positioning frame in a processing device for a square flip-riveted minimalist top cover structure of the present invention;

[0031] Figure 5 It is an overall structural diagram of a movable fixture in a processing device for a square flip-riveted minimalist top cover structure of the present invention;

[0032] Figure 6It is an overall structural diagram of a press-fit device in a processing device for a square flip-riveted minimalist top cover structure of the present invention;

[0033] Figure 7 It is an overall diagram of a flip-type structural punching head in a processing device for a square flip-riveted minimalist top cover structure of the present invention;

[0034] Figure 8 It is a planar structural diagram of a lifting plate in a processing device for a square flip-riveted minimalist top cover structure of the present invention;

[0035] Fig. 9 It is a state change diagram of a movable fixture in a processing device for a square flip-riveted minimalist top cover structure of the present invention.

[0036] In the figure: 1. positive electrode injection molded part; 2. negative electrode injection molded part; 3. explosion-proof patch; 4. top cover plate; 5. explosion-proof plate; 6. negative electrode pole; 7. positive electrode pole; 8. stop frame; 9. fixed base; 10. positioning frame; 11. moving fixture; 12. press assembler; 13. lifting rod; 14. roller; 15. electric buckle; 16. top block; 17. inner frame; 18. outer frame; 19. push-pull rod; 20. punch head; 21. lifting sleeve; 22. lifting guide rod; 23. rotating rod; 24. motor; 25. lifting plate; 26. arc-shaped clamping plate; 27. cylinder; 28. gear; 29. ​​limit slide. DETAILED DESCRIPTION

[0037] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation mode, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0038] like Figure 1 and 2 As shown, a square flip-riveted minimalist top cover structure and a processing device thereof include a top cover sheet 4 and a stop frame 8, the stop frame 8 is fixedly mounted on the lower outer surface of the top cover sheet 4, an explosion-proof sheet 5 is mounted in the middle position between the top cover sheet 4 and the stop frame 8, an explosion-proof patch 3 used in conjunction with the explosion-proof sheet 5 is arranged on the upper outer surface of the top cover sheet 4, a positive electrode injection molded part 1 is sleeved on one side of the explosion-proof patch 3 inside the top cover sheet 4, a negative electrode injection molded part 2 is sleeved on the other side of the explosion-proof patch 3 inside the top cover sheet 4, a positive electrode pole 7 is sleeved on the middle part of the positive electrode injection molded part 1, a negative electrode pole 6 is sleeved on the middle part of the negative electrode injection molded part 2, and the top ends of the positive electrode pole 7 and the negative electrode pole 6 are press-fitted and fixed by flip-riveting.

[0039] like Figure 3As shown, a processing device for a square flip-riveted minimalist top cover structure comprises a fixed base 9 and two sets of press-assemblers 12, the two sets of press-assemblers 12 are movably mounted on the inner side of the upper end of the fixed base 9, a positioning frame 10 is fixedly mounted on the inner side of the fixed base 9 below the two sets of press-assemblers 12, a movable fixture 11 is movably mounted on the inner side of the positioning frame 10, the movable fixture 11 can be used to complete a secondary movement of the top cover structure, so that the top cover structure is moved to the bottom of the two sets of press-assemblers 12 respectively, and the two sets of press-assemblers 12 are used to complete the double flip-riveting stamping of the positive pole 7 and the negative pole 6 in turn.

[0040] In order to improve the riveting efficiency and accuracy, Figure 4 As shown, the positioning frame 10 is a convex-shaped structure as a whole, and electric buckles 15 are installed on both sides of the positioning frame 10, and a plurality of rollers 14 are movably installed on the outer surface of the positioning frame 10. The user pushes the mobile fixture 11 into the positioning frame 10. The positioning frame 10 with a convex structure has two sets of positioning structures on its inner side. When the inner frame body 17 of the mobile fixture 11 enters the positioning frame 10, the electric buckle 15 is used to limit and fix the inner frame body 17, as shown in FIG. Fig. 9 As shown in A, at this time, the top cover piece 4 installed in the inner frame 17 is located below a group of press fitters 12, and the electric buckle 15 is driven by a motor and a screw rod. When the electric buckle 15 is opened, the inner frame 17 can be moved for a second time, thereby moving to the end of the positioning frame 10, so that the top cover piece 4 installed in the inner frame 17 is located below another group of press fitters 12, as shown in FIG. Fig. 9 As shown in B, it is convenient for secondary stamping.

[0041] like Figure 5 As shown, the movable clamp 11 includes an inner frame 17 and an outer frame 18. The inner frame 17 is movably installed on the inner side of the outer frame 18, and the inner frame 17 and the outer frame 18 are slidably connected via a limiting slide groove 29. By utilizing the setting of the outer frame 18, the inner frame 17 can move on the inner side of the outer frame 18. When the inner frame 17 and the outer frame 18 overlap with each other, the inner frame 17 is located below one group of press assemblers 12. When the inner frame 17 is pushed out from the inside of the outer frame 18, the inner frame 17 is located below another group of press assemblers 12.

[0042] like Figure 5 As shown, a push-pull rod 19 is fixedly installed on the middle position of the outer surface of one end of the inner frame 17, and the push-pull rod 19 passes through the middle position of the outer frame 18. Two sets of top blocks 16 used in conjunction with the electric buckle 15 are fixedly installed on the outer surface of the other end of the inner frame 17. The setting of the top block 16 can play an auxiliary limiting role for the inner frame 17, so that the inner frame 17 and the outer frame 18 overlap with each other. Secondly, the push-pull rod 19 can be used to push the inner frame 17, so that the inner frame 17 moves on the inner side of the outer frame 18.

[0043] Embodiment 1, as Figure 6 As shown, the press 12 includes a lifting rod 13 and a lifting plate 25. The lifting plate 25 is located at the middle of the lower end of the lifting rod 13. Two sets of punch heads 20 are fixedly installed at the lower end of the lifting plate 25. The lifting rod 13 drives the lifting plate 25, so that the lifting plate 25 drives the two sets of punch heads 20 to move downward at the same time, so that the two sets of punch heads 20 complete one punching of the ends of the positive pole 7 and the negative pole 6 respectively. The riveting structure of the ends of the positive pole 7 and the negative pole 6 needs to be stamped twice, and one punching is required. Stamping is to press the ends of the positive electrode column 7 and the negative electrode column 6 into a trumpet-shaped structure, so that the ends of the positive electrode column 7 and the negative electrode column 6 are bent outwardly, and the secondary stamping is to press down the trumpet-shaped ends of the positive electrode column 7 and the negative electrode column 6, so that the ends of the positive electrode column 7 and the negative electrode column 6 are turned outward and flattened to complete the fixing operation. The punching head 20 is provided with two specifications. The lower end of the punching head 20 of this embodiment is a truncated cone structure, and the lower end of the punching head 20 of the other embodiment is a flat structure.

[0044] The upper end of the lifting plate 25 is located on both sides of the lifting rod 13 and is fixedly installed with lifting guide rods 22. The outer surface of the lifting guide rod 22 is movably sleeved with a lifting sleeve 21. The lifting sleeve 21 cooperates with the lifting guide rod 22 to enable the lifting plate 25 to move up and down in a vertical shape, thereby improving the docking accuracy of the punch head 20 at the bottom of the lifting plate 25.

[0045] In order to reduce the cost of riveting processing, Figure 7 As shown, in Example 2, two groups of punch heads 20 are movably installed on the inner side of the lifting plate 25, and the lifting plate 25 and the two groups of punch heads 20 are movably connected by a rotating rod 23. One end of the punch head 20 is a truncated cone structure, and the other end of the punch head 20 is a flat structure. The punch head 20 of this press assembler 12 adopts a flip structure design, and both ends of the punch head 20 are set to different structures. The rotating rod 23 is used to drive the two groups of punch heads 20 to rotate, so as to complete the adjustment of its punching structure.

[0046] like Figure 8 As shown, two groups of arc-shaped clamping plates 26 for use with the punch head 20 are movably installed on the inner side of the lifting plate 25. The lifting plate 25 and the arc-shaped clamping plates 26 are driven by a cylinder 27. When the punch head 20 completes the flipping adjustment, the cylinder 27 is used to drive the arc-shaped clamping plates 26, so that the two groups of arc-shaped clamping plates 26 are respectively clamped on both sides of the punch head 20 to complete the limiting fixation of the punch head 20.

[0047] A motor 24 is provided at one end of the rotating rod 23 , and the rotating rod 23 and the motor 24 are driven by a gear 28 . The motor 24 drives the gear 28 , thereby driving the rotating rod 23 , and the rotating rod 23 is used to rotate and adjust the two sets of punch heads 20 .

[0048] When in use, the pole structure of the conventional battery top cover is usually fixed by welding or injection molding, which is complicated to operate and needs to consider the material properties of the top cover sheet 4, and the processing operation of the battery top cover cannot be completed quickly;

[0049] To this end, when processing the square riveted minimalist top cover structure, the ends of the negative electrode column 6 and the positive electrode column 7 are processed by riveting, so that the negative electrode column 6 and the positive electrode column 7 are sealed and fixed, replacing the traditional welding or injection molding fixing method, thereby improving its processing efficiency;

[0050] During the operation, the processing of the positive electrode injection molded part 1 and the negative electrode injection molded part 2 on the top cover sheet 4 must be completed first, so that the positive electrode injection molded part 1 and the negative electrode injection molded part 2 are sleeved in the two circular holes of the top cover sheet 4, and the positive electrode column 7 and the negative electrode column 6 are respectively passed through the positive electrode injection molded part 1 and the negative electrode injection molded part 2, and the positive electrode column 7 and the negative electrode column 6 are placed in the processing device, and the ends of the positive electrode column 7 and the negative electrode column 6 are riveted by stamping. The ends of the positive electrode column 7 and the negative electrode column 6 need to be stamped twice. During the first stamping, the lifting rod 1 is used to 3 cooperates with the lifting plate 25 to drive the punch head 20 with a truncated cone structure at the bottom to move downward, so that the punch head 20 punches the ends of the positive electrode column 7 and the negative electrode column 6 into an outward-turned structure. At this time, another set of press assemblies 12 are used to process them, and another set of lifting rods 13 cooperates with the lifting plate 25 to drive the punch head 20 with a planar structure at the bottom to move downward, thereby flattening the outward-turned structures at the ends of the positive electrode column 7 and the negative electrode column 6, so that one end of the positive electrode column 7 and the negative electrode column 6 is buckled at the ends of the positive electrode injection molded part 1 and the negative electrode injection molded part 2, and the riveting process is completed;

[0051] Secondly, when the pole of the battery top cover is fixed by riveting, multiple stampings are required to complete the riveting and shaping. During multiple stampings, the user needs to repeatedly adjust the processing position of the battery top cover. There is no auxiliary feeding structure, which makes the battery top cover prone to tilting during subsequent stamping operations, affecting the pole riveting effect and reducing the processing efficiency of the pole during continuous stamping.

[0052] To this end, by providing a positioning frame 10 and a moving fixture 11, when the square flip-riveted minimalist top cover structure is riveted, it has an auxiliary feeding structure, which improves the efficiency and processing accuracy during the continuous stamping operation and improves the riveting processing effect;

[0053] When in use, the mobile fixture 11 can be used to complete the secondary movement of the top cover structure, so that the top cover structure can be accurately and quickly moved to the bottom of the two sets of press assemblers 12, and the two sets of press assemblers 12 are used to complete the double riveting and stamping of the positive pole 7 and the negative pole 6 in turn. The positioning frame 10 of the convex structure has two sets of positioning structures on its inner side. When the inner frame 17 of the mobile fixture 11 enters the positioning frame 10, the electric buckle 15 is used to limit and fix the inner frame 17. Fig. 9 As shown in A, at this time, the top cover piece 4 installed in the inner frame 17 is located below a group of press fitters 12, and the electric buckle 15 is driven by a motor and a screw rod. When the electric buckle 15 is opened, the inner frame 17 can be moved for a second time, thereby moving to the end of the positioning frame 10, so that the top cover piece 4 installed in the inner frame 17 is located below another group of press fitters 12. At this time, Fig. 9 As shown in B, it is convenient to perform secondary stamping, and the top cover sheet 4 is prevented from tilting when moving. The outer frame 18 is arranged so that the inner frame 17 can move inside the outer frame 18. When the inner frame 17 and the outer frame 18 overlap each other, the inner frame 17 is located below a group of press fitters 12. When the inner frame 17 is pushed out from the inside of the outer frame 18, the inner frame 17 is located below another group of press fitters 12, so that the mobile fixture 11 can complete the two movements of the top cover sheet 4, thereby improving its processing effect.

[0054] Secondly, when the pole of the battery top cover is fixed by riveting, since the pole cannot be riveted and shaped by one punching, multiple sets of punching equipment are usually used for continuous riveting and punching, which increases the equipment cost of the pole riveting process;

[0055] To this end, by providing a punch head 20 and a rotating rod 23, when the square flip-riveted minimalist top cover structure is riveted, it has a flip-type punching adjustment structure, and the punch head 20 can be used to complete two different riveting punching shaping, thereby reducing its processing cost;

[0056] During operation, the punch head 20 of the press 12 adopts a flip-type structural design, and both ends of the punch head 20 are set to different structures. The rotating rod 23 is used to drive the two sets of punch heads 20 to rotate to complete the adjustment of the punching structure. The motor 24 drives the gear 28 to drive the rotating rod 23. The two sets of punch heads 20 are rotated and adjusted by the rotating rod 23. One end of the punch head 20 is a truncated cone structure, and the other end of the punch head 20 is a flat structure. One punching is to press the positive electrode 7 and the negative electrode. The ends of the pole 6 are pressed into a trumpet-shaped outward-turned structure, so that the ends of the positive pole 7 and the negative pole 6 are bent outwardly. The secondary stamping is to press down the trumpet-shaped ends of the positive pole 7 and the negative pole 6, so that the ends of the positive pole 7 and the negative pole 6 are turned outward and flattened to complete the fixing operation. When the punch head 20 completes the flipping adjustment, the cylinder 27 is used to drive the arc clamping plate 26, so that the two groups of arc clamping plates 26 are respectively clamped on both sides of the punch head 20 to complete the limiting fixation of the punch head 20.

[0057] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A square riveted minimalist top cover structure, characterized in that: The invention comprises a top cover sheet (4) and a stop frame (8), wherein the stop frame (8) is fixedly mounted on the lower outer surface of the top cover sheet (4), an explosion-proof sheet (5) is mounted at a middle position between the top cover sheet (4) and the stop frame (8), an explosion-proof patch (3) used in conjunction with the explosion-proof sheet (5) is arranged on the upper outer surface of the top cover sheet (4), a positive electrode injection molded part (1) is sleeved on one side of the explosion-proof patch (3) inside the top cover sheet (4), a negative electrode injection molded part (2) is sleeved on the other side of the explosion-proof patch (3) inside the top cover sheet (4), a positive electrode pole (7) is sleeved on the middle of the positive electrode injection molded part (1), a negative electrode pole (6) is sleeved on the middle of the negative electrode injection molded part (2), and the top ends of the positive electrode pole (7) and the negative electrode pole (6) are both press-fitted and fixed by riveting.

2. A processing device for a square riveted minimalist top cover structure, characterized in that: The invention comprises a fixed base (9) and two groups of press-fitters (12), wherein the two groups of press-fitters (12) are movably mounted on the inner side of the upper end of the fixed base (9), a positioning frame (10) is fixedly mounted on the inner side of the fixed base (9) below the two groups of press-fitters (12), and a movable clamp (11) is movably mounted on the inner side of the positioning frame (10).

3. A processing device for a square riveted minimalist top cover structure according to claim 2, characterized in that: The positioning frame (10) is a convex-shaped structure as a whole. Electric buckles (15) are installed on both sides of the positioning frame (10), and a plurality of rollers (14) are movably installed on the outer surface of the positioning frame (10). When a user pushes the mobile clamp (11) into the positioning frame (10), the positioning frame (10) with a convex structure has two groups of positioning structures on its inner side. When the inner frame body (17) of the mobile clamp (11) enters the positioning frame (10), the electric buckle (15) is used to limit and fix the inner frame body (17).

4. A processing device for a square riveted minimalist top cover structure according to claim 2, characterized in that: The movable clamp (11) comprises an inner frame (17) and an outer frame (18); the inner frame (17) is movably mounted on the inner side of the outer frame (18); and the inner frame (17) and the outer frame (18) are slidably connected via a limiting sliding groove (29).

5. A processing device for a square riveted minimalist top cover structure according to claim 4, characterized in that: A push-pull rod (19) is fixedly mounted on the middle of the outer surface of one end of the inner frame (17), and the push-pull rod (19) passes through the middle of the outer frame (18). Two sets of top blocks (16) used in conjunction with the electric buckle (15) are fixedly mounted on the outer surface of the other end of the inner frame (17).

6. A processing device for a square riveted minimalist top cover structure according to claim 2, characterized in that: The press (12) comprises a lifting rod (13) and a lifting plate (25), wherein the lifting plate (25) is located at the middle of the lower end of the lifting rod (13), and two groups of punching heads (20) are fixedly mounted at the lower end of the lifting plate (25).

7. A processing device for a square riveted minimalist roof structure according to claim 6, characterized in that: The upper end of the lifting plate (25) is located on both sides of the lifting rod (13) and is fixedly mounted with lifting guide rods (22), and the outer surface of the lifting guide rod (22) is movably sleeved with a lifting sliding sleeve (21).

8. The processing device for a square riveted minimalist top cover structure according to claim 6 is characterized in that: Two groups of punching heads (20) are movably mounted on the inner side of the lifting plate (25), and the lifting plate (25) and the two groups of punching heads (20) are movably connected via a rotating rod (23), one end of the punching head (20) is a truncated cone structure, and the other end of the punching head (20) is a planar structure.

9. A processing device for a square riveted minimalist top cover structure according to claim 8, characterized in that: Two groups of arc-shaped clamping plates (26) used in conjunction with the punching head (20) are movably installed on the inner side of the lifting plate (25), and the lifting plate (25) and the arc-shaped clamping plates (26) are driven by a cylinder (27).

10. A processing device for a square riveted minimalist top cover structure according to claim 8, characterized in that: A motor (24) is provided at one end of the rotating rod (23), and the rotating rod (23) and the motor (24) are driven via a gear (28).

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