Rotary riveting mechanism for positive pole and negative pole of lithium battery cover plate

Abstract

The utility model provides a rotary riveting mechanism for positive and negative poles of a lithium battery cover plate. The rotary riveting mechanism comprises a base; the pre-rotating rivet head assembly comprises a first rotating rivet head and a first pressing rod, the first rotating rivet head comprises a first mounting base and two first rotating wheels rotationally arranged on the first mounting base, and the first pressing rod penetrates through the first mounting base and extends to the position between the two first rotating wheels; the rotary pressing assembly comprises a first rotary pressing mechanism, and the first rotary pressing mechanism comprises a first lifting unit, a first rotating unit and a first adjusting unit used for adjusting the height of a first pressing rod; and the positioning assembly is used for clamping the workpiece to be machined. According to the rotary riveting device, workpieces to be machined of different sizes can be pressed, the two first rotating wheels are rotatably arranged on the first mounting base, the rotary riveting process is achieved, it is guaranteed that the appearance of a formed product is smooth and flat, consistency is good, the surface of the product is effectively prevented from being scratched, and production efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of battery processing, in particular to a rotary riveting mechanism for positive and negative poles of a lithium battery cover. Background Art

[0002] Most of the current cover plate pole riveting mechanisms are one-time forming rotary riveting structures, which require continuous rotation and flattening on the product surface for a long time. Long-term friction can easily cause metal wires and scratches on the product surface. Moreover, since the one-time forming rotary riveting structure takes a long time to work, production efficiency is difficult to improve. Utility Model Content

[0003] In response to the shortcomings of the existing technology, the purpose of the present invention is to provide a rotary riveting mechanism for the positive and negative poles of a lithium battery cover. The height of the first pressure rod can be adjusted by a first adjustment unit. The first pressure rod passes through the first rotary rivet head. The two do not interfere with each other and can press workpieces of different sizes to be processed. The two first rotating wheels can be rotatably set on the first mounting seat, realizing the rotary riveting process while ensuring that the product molding appearance is smooth and flat, with good consistency, and effectively avoiding scratches on the product surface.

[0004] The embodiments of the present invention are achieved through the following technical solutions:

[0005] A rotary riveting mechanism for positive and negative poles of a lithium battery cover, comprising:

[0006] base;

[0007] The pre-rotating rivet head assembly includes a first rotating rivet head and a first pressure rod, wherein the first rotating rivet head includes a first mounting seat and two first rotating wheels rotatably disposed on the first mounting seat, and the first pressure rod passes through the first mounting seat and extends between the two first rotating wheels;

[0008] A rotary pressing assembly includes a first rotary pressing mechanism, wherein the first rotary pressing mechanism includes a first lifting unit for driving the first rotary rivet head to descend, a first rotating unit for driving the first rotary rivet head to rotate, and a first adjusting unit for adjusting the height of the first pressing rod;

[0009] Positioning assembly, used to clamp the workpiece to be processed.

[0010] According to a preferred embodiment, the outer wall of the first rotating wheel includes a first inclined surface, a first horizontal surface, and a second inclined surface which are sequentially connected and arranged in a direction toward the first pressure rod.

[0011] According to a preferred embodiment, the machine further comprises a second rotary rivet head, a second pressure rod, and a second rotary pressing mechanism, wherein the second rotary rivet head comprises a second mounting seat and two second rotating wheels disposed on the second mounting seat, and the second pressure rod passes through the second mounting seat and extends between the two second rotating wheels;

[0012] The second rotary pressing mechanism includes a second lifting unit for driving the second rotary rivet head to descend, a second rotating unit for driving the second rotary rivet head to rotate, and a second adjusting unit for adjusting the height of the second pressing rod.

[0013] According to a preferred embodiment, the second rotating wheel is cylindrical and rotatably mounted on the second mounting seat.

[0014] According to a preferred embodiment, the first adjustment unit includes a first screw lifting structure and a first rotary joint, the lifting end of the first screw lifting structure is connected to the first rotary joint, and the other end of the first rotary joint is connected to the upper end of the first pressure rod.

[0015] According to a preferred embodiment, the second adjustment unit includes a second screw lifting structure and a second rotary joint, the lifting end of the second screw lifting structure is connected to the second rotary joint, and the other end of the second rotary joint is connected to the upper end of the second pressure rod.

[0016] According to a preferred embodiment, the positioning assembly includes a positioning frame, a long side clamp for clamping the long side of the workpiece to be processed, and a short side clamp for clamping the short side of the workpiece to be processed, and the long side clamp and the short side clamp are both arranged on the top of the positioning frame.

[0017] According to a preferred embodiment, a pad is provided on the top of the positioning frame, and the long side clamps and the short side clamps are both distributed on the outside of the pad.

[0018] According to a preferred embodiment, the rotation axes of the two first rotating wheels are both horizontally arranged and located on the same horizontal plane, and the rotation axes of the two second rotating wheels are both horizontally arranged and located on the same horizontal plane.

[0019] According to a preferred embodiment, the inclination angle of the second inclined surface is 40-60 degrees.

[0020] The technical solution of the embodiment of the utility model has at least the following advantages and beneficial effects:

[0021] The utility model can adjust the height of the first pressure rod through the first adjustment unit. The first pressure rod passes through the first rotary rivet head. The two do not interfere with each other and can press workpieces of different sizes to be processed. The two first rotary wheels can be rotatably set on the first mounting seat, realizing the rotary riveting process while ensuring that the product molding appearance is smooth and flat, with good consistency, effectively avoiding scratches on the product surface, and high production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 A schematic structural diagram of a rotary riveting mechanism for positive and negative poles of a lithium battery cover provided by an embodiment of the present invention;

[0024] Figure 2 Another structural diagram of a rotary riveting mechanism for positive and negative poles of a lithium battery cover provided by an embodiment of the present invention;

[0025] Figure 3 for Figure 1 Schematic diagram of the partially enlarged structure;

[0026] Figure 4 A schematic structural diagram of a positioning assembly provided in an embodiment of the present utility model.

[0027] Icons: 1. Base; 2. First rotary rivet head; 21. First mounting seat; 22. First rotating wheel; 3. First pressure rod; 4. First rotary pressing mechanism; 41. First lifting unit; 42. First rotating unit; 43. First adjustment unit; 5. First inclined surface; 6. First horizontal surface; 7. Second inclined surface; 8. Second rotary rivet head; 81. Second mounting seat; 82. Second rotating wheel; 9. Second pressure rod; 10. Second rotary pressing mechanism; 101. Second lifting unit; 102. Second rotating unit; 103. Second adjustment unit; 11. First rotary joint; 12. Second rotary joint; 13. Positioning frame; 14. Long side clamp; 15. Short side clamp; 16. Pad. DETAILED DESCRIPTION

[0028] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0029] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0031] Example

[0032] Please refer to Figures 1 to 4 A rotary riveting mechanism for the positive and negative poles of a lithium battery cover comprises: a base 1; a pre-rotating rivet head assembly, comprising a first rotary rivet head 2 and a first pressure rod 3, the first rotary rivet head 2 comprising a first mounting seat 21 and two first rotating wheels 22 rotatably arranged on the first mounting seat 21, the first pressure rod 3 passes through the first mounting seat 21 and extends between the two first rotating wheels 22; a rotary pressing assembly, comprising a first rotary pressing mechanism 4, the first rotary pressing mechanism 4 comprising a first lifting unit 41 for driving the first rotary rivet head 2 to descend, a first rotating unit 42 for driving the first rotary rivet head 2 to rotate, and a first adjusting unit 43 for adjusting the height of the first pressure rod 3; a positioning assembly for clamping the workpiece to be processed.

[0033] Furthermore, the outer wall of the first rotating wheel 22 includes a first inclined surface 5 , a first horizontal surface 6 and a second inclined surface 7 which are sequentially connected and arranged in a direction toward the first pressure rod 3 .

[0034] Furthermore, it also includes a second rotary rivet head 8, a second pressure rod 9 and a second rotary pressing mechanism 10. The second rotary rivet head 8 includes a second mounting seat 81 and two second rotating wheels 82 provided on the second mounting seat 81. The second pressure rod 9 passes through the second mounting seat 81 and extends between the two second rotating wheels 82.

[0035] The second rotary pressing mechanism 10 includes a second lifting unit 101 for driving the second rotary rivet head 8 to descend, a second rotating unit 102 for driving the second rotary rivet head 8 to rotate, and a second adjusting unit 103 for adjusting the height of the second pressing rod 9 .

[0036] Furthermore, the second rotating wheel 82 is cylindrical and rotatably mounted on the second mounting seat 81 .

[0037] Further, the first adjusting unit 43 comprises a first screw rod lifting structure, a first rotary joint 11, the lifting end of the first screw rod lifting structure being connected with the first rotary joint 11, and the other end of the first rotary joint 11 being connected with the upper end of the first pressing rod 3.

[0038] Further, the second adjusting unit 103 comprises a second screw rod lifting structure, a second rotary joint 12, the lifting end of the second screw rod lifting structure being connected with the second rotary joint 12, and the other end of the second rotary joint 12 being connected with the upper end of the second pressing rod 9.

[0039] Further, the positioning assembly comprises a positioning frame 13, a long-side clamp 14 for clamping the long side of the workpiece to be machined and a short-side clamp 15 for clamping the short side of the workpiece to be machined, and the long-side clamp 14 and the short-side clamp 15 are arranged on the top of the positioning frame 13.

[0040] Further, the top of the positioning frame 13 is provided with a backing plate 16, and the long-side clamp 14 and the short-side clamp 15 are distributed on the outer side of the backing plate 16.

[0041] Further, the rotation shafts of the two first rotating wheels 22 are horizontally arranged and located on the same horizontal plane, and the rotation shafts of the two second rotating wheels 82 are horizontally arranged and located on the same horizontal plane.

[0042] Further, the inclination angle of the second inclined surface 7 is 40-60 degrees. In the embodiment, the product is a lithium battery cover plate, and the inclination angle of the second inclined surface 7 is designed according to the height of the positive and negative pole of the lithium battery cover plate, so that the inclination angle of the second inclined surface 7 is 40-60 degrees, the product can be pressed out at an angle and the surface of the product can be prevented from being scratched. The second inclined surface 7 is the inclined surface close to the first pressing rod 3.

[0043] The working principle of the utility model is as follows:

[0044] The first rotating wheel 22 and the first mounting seat 21 can be movably connected by a bearing or a rotating shaft to ensure that the first rotating wheel 22 can rotate; the second rotating wheel 82 and the second mounting seat 81 can be movably connected by a bearing or a rotating shaft to ensure that the second rotating wheel 82 can rotate; to ensure that the surface of the product will not be scratched due to rigid friction when in contact with the product, the first rotating rivet head 2 is at a C-shaped angle in contact with the product on the outside. By rotating and pressing the product, the product is pre-riveted into a product with an angled and tilted end at the pole, completing the first riveting process for the product's extrusion angle, which can prevent the product from being scratched during processing. The second riveting process is as follows: the lifting end of the second lifting unit 101 drives the second rotating rivet head 8 to press down, and at the same time, the second rotating unit 102 drives the second rotating rivet head 8 to rotate, realize rotation and downward pressure, and flatten the pole with an angled and tilted end, thereby obtaining a product after riveting. The first pressure rod 3 can be driven to move up and down by the lifting end of the first screw lifting structure, and the second pressure rod 9 can be driven to move up and down by the lifting end of the second screw lifting structure. The first pressure rod 3 and the lifting end of the first screw lifting structure are movably connected by the first rotary joint 11, which can ensure that the first pressure rod 3 can be lifted and lowered without rotating during the rotation and lifting process of the lifting end of the first screw lifting structure. Similarly, the second pressure rod 9 and the lifting end of the second screw lifting structure are movably connected by the second rotary joint 12, which can ensure that the second pressure rod 9 can be lifted and lowered without rotating during the rotation and lifting process of the lifting end of the second screw lifting structure. The first rotary rivet head 2 is disposed at the rotating end of the first rotary unit 42, that is, the first mounting seat 21 is connected to the rotating end of the first rotary unit 42. Similarly, the second rotary rivet head 8 is disposed at the rotating end of the second rotary unit 102, that is, the second mounting seat 81 is connected to the rotating end of the second rotary unit 102. The lifting end of the first lifting unit 41 drives the first rotary rivet head 2 and the first rotary unit 42 to rise and fall together, and the lifting end of the second lifting unit 101 drives the second rotary rivet head 8 and the second rotary unit 102 to rise and fall together. The first pressure rod 3 passes through the first mounting seat 21, and the second pressure rod 9 passes through the second mounting seat 81. During the rotation of the first rotary rivet head 2, there is no interference with the first pressure rod 3, and during the rotation of the second rotary rivet head 8, there is no interference with the second pressure rod 9. The first lifting unit 41 and the second lifting unit 101 can both use a lifting mechanism such as a cylinder or an electric cylinder.

[0045] The positioning frame 13 is used to clamp the workpiece to be machined, and the backing plate 16 is used to position the workpiece. The workpiece is placed on the backing plate 16. The long side clamp 14 and short side clamp 15 outside the backing plate 16 can fix the workpiece to be machined. Both the long side clamp 14 and short side clamp 15 can be driven by a telescopic mechanism such as a cylinder or an electric cylinder. The second rotary rivet head 8 is cylindrical or roller-shaped and is used to flatten the workpiece to be machined.

[0046] Specifically, the products mentioned above are all lithium battery cover plates, but are not limited to the riveting processing technology for lithium battery cover plates.

[0047] The technical means disclosed in the present invention are not limited to those disclosed in the above-mentioned embodiments, but also include technical solutions composed of any combination of the above-mentioned technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A rotary riveting mechanism for positive and negative poles of a lithium battery cover, characterized in that: include: base; The pre-rotating rivet head assembly includes a first rotating rivet head and a first pressure rod, wherein the first rotating rivet head includes a first mounting seat and two first rotating wheels rotatably disposed on the first mounting seat, and the first pressure rod passes through the first mounting seat and extends between the two first rotating wheels; A rotary pressing assembly includes a first rotary pressing mechanism, wherein the first rotary pressing mechanism includes a first lifting unit for driving the first rotary rivet head to descend, a first rotating unit for driving the first rotary rivet head to rotate, and a first adjusting unit for adjusting the height of the first pressing rod; Positioning assembly, used to clamp the workpiece to be processed.

2. The rotary riveting mechanism for positive and negative poles of a lithium battery cover according to claim 1, characterized in that: The outer wall of the first rotating wheel includes a first inclined surface, a first horizontal surface, and a second inclined surface which are sequentially connected and arranged in a direction toward the first pressure rod.

3. The rotary riveting mechanism for positive and negative poles of a lithium battery cover according to claim 2, characterized in that: The device further includes a second rotary rivet head, a second pressure rod, and a second rotary pressing mechanism. The second rotary rivet head includes a second mounting seat and two second rotating wheels disposed on the second mounting seat. The second pressure rod passes through the second mounting seat and extends between the two second rotating wheels. The second rotary pressing mechanism includes a second lifting unit for driving the second rotary rivet head to descend, a second rotating unit for driving the second rotary rivet head to rotate, and a second adjusting unit for adjusting the height of the second pressing rod.

4. The rotary riveting mechanism for positive and negative poles of a lithium battery cover according to claim 3, characterized in that: The second rotating wheel is cylindrical and rotatably mounted on the second mounting seat.

5. The rotary riveting mechanism for positive and negative poles of a lithium battery cover according to claim 1, characterized in that: The first adjustment unit includes a first screw lifting structure and a first rotary joint. The lifting end of the first screw lifting structure is connected to the first rotary joint, and the other end of the first rotary joint is connected to the upper end of the first pressure rod.

6. The rotary riveting mechanism for positive and negative poles of a lithium battery cover according to claim 3, characterized in that: The second adjustment unit includes a second screw lifting structure and a second rotary joint. The lifting end of the second screw lifting structure is connected to the second rotary joint, and the other end of the second rotary joint is connected to the upper end of the second pressure rod.

7. The rotary riveting mechanism for positive and negative poles of a lithium battery cover according to claim 1, characterized in that: The positioning assembly includes a positioning frame, a long side clamp for clamping the long side of the workpiece to be processed, and a short side clamp for clamping the short side of the workpiece to be processed. The long side clamp and the short side clamp are both arranged on the top of the positioning frame.

8. The rotary riveting mechanism for positive and negative poles of a lithium battery cover according to claim 7, characterized in that: A pad is provided on the top of the positioning frame, and the long side clamps and the short side clamps are both distributed on the outside of the pad.

9. The rotary riveting mechanism for positive and negative poles of a lithium battery cover according to claim 3, characterized in that: The rotating shafts of the two first rotating wheels are both arranged horizontally and located on the same horizontal plane, and the rotating shafts of the two second rotating wheels are both arranged horizontally and located on the same horizontal plane.

10. The rotary riveting mechanism for positive and negative poles of a lithium battery cover according to claim 2, characterized in that: The inclination angle of the second inclined surface is 40-60 degrees.

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