Cylindrical battery pre-riveting device

Abstract

The utility model relates to the technical field of battery processing, in particular to a cylindrical battery pre-riveting device which comprises a support, a cam, a cam driving piece, a transmission assembly, a cam transmission piece and a pre-riveting head, the cam is rotatably arranged on the support, the output end of the cam driving piece is in transmission connection with the cam through the transmission assembly, and the cam transmission piece is arranged on the support. The cam driving part is arranged on the periphery of the cam, a driving inclined face is arranged on the periphery of the cam, the cam driving part abuts against the driving inclined face, the pre-riveting head is connected to the cam driving part, the cam driving part can drive the cam to rotate, and the cam drives the pre-riveting head to vertically move through the cam driving part. The device is simple and clear in structural design and high in automation degree, all the mechanisms are tightly matched, and the pre-riveting process is smooth and stable.

Description

Technical Field

[0001] The utility model relates to the technical field of battery processing, in particular to a cylindrical battery pre-riveting device. Background Art

[0002] During the production process of cylindrical batteries, it is easy for the battery pole and the shell to not be accurately aligned, which can lead to serious safety problems such as misalignment and short circuits. In order to improve the production quality and safety of cylindrical batteries, the problem of pole-shell alignment during battery production has attracted attention. In the production process of cylindrical batteries, in order to make the battery pole initially formed, it is often pre-pressed for a short time. However, in the prior art, the pre-riveting operation is relatively complicated and the pre-riveting device has a low degree of automation, which leads to problems such as low production efficiency, increased labor costs, and unstable pre-riveting effects. Utility Model Content

[0003] The utility model provides a cylindrical battery pre-riveting device, which has a concise and clear structural design, a high degree of automation, close coordination between various mechanisms, and a smooth and stable pre-riveting process.

[0004] A cylindrical battery pre-riveting device comprises a bracket, a cam, a cam driving member, a transmission assembly, a cam transmission member, and a pre-riveting head, wherein the cam is rotatably arranged on the bracket, the output end of the cam driving member is transmission-connected to the cam via the transmission assembly, the circumferential surface of the cam is provided with a driving inclined surface, the cam transmission member abuts against the driving inclined surface, the pre-riveting head is connected to the cam transmission member, the cam driving member can drive the cam to rotate, and the cam drives the pre-riveting head to move vertically via the cam transmission member.

[0005] In the above scheme, a cam is rotatably arranged on the bracket, and the cam can rotate smoothly under the drive of the cam driver. The output end of the cam driver realizes transmission connection with the cam through the transmission assembly, ensuring that the power can be accurately and efficiently transmitted to the cam; a driving bevel is arranged on the circumferential surface of the cam, so that the contact between the cam and the cam driver is smoother, and the driving bevel and the cam driver form effective contact and interaction. When the cam rotates, the driving bevel of the cam can guide the cam driver to move vertically; one end of the cam driver is tightly connected with the cam, ensuring stable transmission between the two, and when the cam driver drives the cam to rotate, the cam driver can accurately move with the rotation of the cam; the other end of the cam driver is connected to the pre-rivet head, and the rotation of the cam can be directly converted into the movement of the pre-rivet head in the vertical direction, making the whole pre-rivet process more stable and reliable. The structure design of the device is reasonable, the various parts are tightly connected, the pre-rivet process is smooth and stable as a whole, the degree of automation is high, and the cylindrical battery pole can be pre-pressed and formed, and the pole can be preliminarily positioned to avoid position deviation caused by movement, thereby ensuring that it can be accurately riveted with the shell in the future, and improving production efficiency.

[0006] Furthermore, the cam transmission member includes a roller, and the roller abuts against the driving inclined surface.

[0007] In the above technical solution, by setting the roller, when the cam rotates, the roller can roll along the driving inclined surface, making the pre-rivet process smoother. In addition, the cooperation between the roller and the driving inclined surface also makes the transmission more precise. Since the roller can roll closely against the driving inclined surface, the rotational force of the cam can be accurately transmitted to the pre-rivet head, realizing the precise control of the moving distance and speed of the pre-rivet head.

[0008] Furthermore, the driving inclined surface is annular, and comprises a first end portion and a second end portion which are arranged at two axial ends of the cam opposite to each other, and there is a height difference between the first end portion and the second end portion.

[0009] In the above technical solution, the driving inclined surface forms a certain inclination angle through the height difference between the first end and the second end, thereby driving the cam transmission member to move in the vertical direction. The existence of the height difference ensures that the pre-rivet head can move accurately according to a predetermined trajectory, thereby improving the accuracy of pre-rivet.

[0010] Furthermore, the bracket includes a mounting plate, and the cam transmission member and the pre-rivet head are respectively arranged on the upper and lower end surfaces of the mounting plate.

[0011] In the above technical solution, the mounting plate serves as a supporting base, providing a stable platform for the installation of the cam transmission component and the pre-rivet head, thereby ensuring their stability and reliability during movement.

[0012] Furthermore, the cam transmission member includes a connecting shaft, which passes through the mounting plate and is connected to the pre-rivet head.

[0013] In the above technical solution, the connecting shaft connects the pre-rivet head and the cam transmission member, which can effectively transmit the movement of the cam transmission member to the pre-rivet head, and has the advantages of stable and reliable connection and high transmission efficiency.

[0014] Furthermore, the transmission assembly includes a driving wheel, a driven wheel and a transmission belt, the transmission belt is connected to the driving wheel and the driven wheel, the driving wheel is connected to the output end of the cam driving member, and the driven wheel is connected to the cam.

[0015] In the above technical solution, when the cam driving member drives the driving wheel to rotate, the transmission belt can quickly and stably transmit power to the driven wheel, thereby driving the rotation of the cam, thereby improving the transmission efficiency.

[0016] Furthermore, the pre-rivet head has a pre-pressing groove matching the target part.

[0017] In the above technical solution, the pre-pressing groove can fit the target part tightly, thereby achieving effective pre-pressing of the target part and improving the accuracy and reliability of pre-riveting.

[0018] Compared with the prior art, the utility model has the following beneficial effects: the utility model sets a cam and a cam transmission member, and the two cooperate to accurately control the movement of the pre-rivet head in the vertical direction, and pre-presses the cylindrical battery pole; the pole is initially positioned to avoid position deviation caused by movement, thereby ensuring that it can be accurately riveted in the future, which is conducive to reducing the defective rate caused by riveting errors. The cylindrical battery pre-rivet device of the utility model makes the pre-rivet process more compact and efficient through a simple structure, while improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the cylindrical battery pre-riveting device of the utility model.

[0020] Figure 2 It is a side view of the cam in the cylindrical battery pre-riveting device of the utility model.

[0021] Description of the accompanying drawings: bracket 1, cam driving member 11, transmission assembly 12, driving wheel 121, driven wheel 122, transmission belt 123, cam 13, driving inclined surface 131, first end 1311, second end 1312, cam driving member 14, roller 141, connecting shaft 142, pre-rivet head 15. DETAILED DESCRIPTION

[0022] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively with reference to the accompanying drawings. The accompanying drawings provide preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein.

[0023] like Figure 1 and Figure 2 As shown, in a preferred embodiment, a cylindrical battery pre-riveting device of the utility model includes a bracket 1, a cam 13, a cam driving member 11, a transmission assembly 12, a cam driving member 14, and a pre-riveting head 15. The cam 13 is rotatably arranged on the bracket 1, and the output end of the cam driving member 11 is transmission-connected with the cam 13 through the transmission assembly 12. The circumferential surface of the cam 13 is provided with a driving inclined surface 131, and the cam driving member 14 is against the driving inclined surface 131. The pre-riveting head 15 is connected to the cam driving member 14. The cam driving member 11 can drive the cam 13 to rotate, and the cam 13 drives the pre-riveting head 15 to move vertically through the cam driving member 14.

[0024] A cam 13 is rotatably provided on the bracket 1. The cam 13 can rotate smoothly under the drive of the cam driving member 11. The output end of the cam driving member 11 realizes transmission connection with the cam 13 through the transmission assembly 12, ensuring that the power can be accurately and efficiently transmitted to the cam 13; a driving bevel 131 is provided on the circumferential surface of the cam 13, so that the contact between the cam 13 and the cam driving member 14 is smoother, and the driving bevel 131 and the cam driving member 14 form effective contact and interaction. When the cam 13 rotates, the driving bevel 131 of the cam 13 can guide the cam driving member 14 to move vertically; one end of the cam driving member 14 is tightly connected with the cam 13, ensuring stable transmission between the two. When the cam driving member 11 drives the cam 13 to rotate, the cam driving member 14 can accurately move following the rotation of the cam 13; the other end of the cam driving member 14 is connected to the pre-rivet head 15, and the rotation of the cam 13 can be directly converted into the movement of the pre-rivet head 15 in the vertical direction, making the entire pre-rivet process more stable and reliable. The device has a reasonable structural design, with each part tightly connected. The pre-riveting process is smooth and stable as a whole and has a high degree of automation. It can pre-press and form cylindrical battery poles and perform preliminary positioning of the poles to avoid position deviations due to movement, thereby ensuring that they can be accurately riveted with the shell in the future and improving production efficiency.

[0025] Please refer to Figure 1In the present invention, the cam transmission member 14 includes a roller 141, and the roller 141 abuts against the driving inclined surface 131. By providing the roller 141, when the cam 13 rotates, the roller 141 can roll along the driving inclined surface 131, making the pre-riveting process smoother. In addition, the cooperation between the roller 141 and the driving inclined surface 131 also makes the transmission more precise. Since the roller 141 can roll closely against the driving inclined surface 131, the rotational force of the cam 13 can be accurately transmitted to the pre-riveting head 15, thereby realizing the precise control of the moving distance and speed of the pre-riveting head 15.

[0026] Please refer to Figure 2 In the present invention, the driving inclined surface 131 is annular, and includes a first end and a second end which are relatively arranged at two axial ends of the cam 13, and the first end and the second end have a height difference. The driving inclined surface 131 forms a certain inclination angle through the height difference between the first end and the second end, thereby driving the cam transmission member 14 to move in the vertical direction. The existence of the height difference ensures that the pre-rivet head 15 can move accurately according to the predetermined trajectory, thereby improving the accuracy of the pre-rivet.

[0027] Please refer to Figure 1 In the present invention, the bracket 1 includes a mounting plate, and the cam transmission member 14 and the pre-rivet head 15 are respectively arranged on the upper and lower end surfaces of the mounting plate. The mounting plate serves as a supporting base, providing a stable platform for the installation of the cam transmission member 14 and the pre-rivet head 15, ensuring their stability and reliability during the movement.

[0028] Please refer to Figure 1 In the present invention, the cam transmission member 14 includes a connecting shaft 142, which is passed through the mounting plate and connected to the pre-rivet head 15. The connecting shaft 142 connects the pre-rivet head 15 and the cam transmission member 14, and can effectively transmit the movement of the cam transmission member 14 to the pre-rivet head 15, which has the advantages of stable and reliable connection and high transmission efficiency.

[0029] Please refer to Figure 1 In the present invention, the transmission assembly 12 includes a driving wheel 121, a driven wheel 122 and a transmission belt 123. The transmission belt 123 is connected to the driving wheel 121 and the driven wheel 122. The driving wheel 121 is connected to the output end of the cam driving member 11, and the driven wheel 122 is connected to the cam 13. When the cam driving member 11 drives the driving wheel 121 to rotate, the transmission belt 123 can quickly and stably transmit power to the driven wheel 122, thereby driving the rotation of the cam 13, thereby improving the transmission efficiency.

[0030] In this embodiment, the design of the pre-rivet head 15 fully considers the actual production needs and is set to have a pre-pressing groove that matches the target part. The pre-rivet head 15 can be accurately aligned with the target part, so that the cylindrical battery can be evenly stressed when the pre-rivet head 15 applies the pre-rivet force, effectively avoiding the problem of poor pre-rivet caused by uneven force and improving the accuracy and reliability of pre-rivet.

[0031] In summary, the cylindrical battery pre-riveting device provided by the utility model realizes accurate and efficient pre-riveting of the cylindrical battery by optimizing the cam 13 and the cam 13 transmission member, and the two cooperate to accurately control the movement of the pre-riveting head 15 in the vertical direction, so as to make the pre-riveting process of the cylindrical battery smoother and more efficient. Therefore, the utility model is practical.

[0032] In the description of the present invention, it should be understood that terms such as "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and 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 orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0033] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cylindrical battery pre-riveting device, characterized in that: The invention comprises a bracket, a cam, a cam driving member, a transmission assembly, a cam transmission member, and a pre-rivet head. The cam is rotatably arranged on the bracket. The output end of the cam driving member is transmission-connected to the cam via the transmission assembly. A driving inclined surface is arranged on the circumferential surface of the cam. The cam transmission member abuts against the driving inclined surface. The pre-rivet head is connected to the cam transmission member. The cam driving member can drive the cam to rotate. The cam drives the pre-rivet head to move vertically via the cam transmission member.

2. The cylindrical battery pre-riveting device according to claim 1, characterized in that: The cam transmission member includes a roller, and the roller abuts against the driving inclined surface.

3. The cylindrical battery pre-riveting device according to claim 1, characterized in that: The driving inclined surface is annular and includes a first end portion and a second end portion which are arranged at two axial ends of the cam opposite to each other, and the first end portion and the second end portion have a height difference.

4. The cylindrical battery pre-riveting device according to claim 1, characterized in that: The bracket comprises a mounting plate, and the cam transmission member and the pre-rivet head are respectively arranged on the upper and lower end surfaces of the mounting plate.

5. The cylindrical battery pre-riveting device according to claim 4, characterized in that: The cam transmission member comprises a connecting shaft, which is passed through the mounting plate and connected to the pre-rivet head.

6. The cylindrical battery pre-riveting device according to claim 1, characterized in that: The transmission assembly includes a driving wheel, a driven wheel and a transmission belt, the transmission belt is connected to the driving wheel and the driven wheel, the driving wheel is connected to the output end of the cam driving member, and the driven wheel is connected to the cam.

7. The cylindrical battery pre-riveting device according to claim 1, characterized in that: The pre-rivet head has a pre-pressing groove matching the target part.

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