Pole piece punching device
By setting the punching drive member on an independent bracket in the pole-cutting device, the problems of excessive load and poor accuracy caused by the punching motor in the prior art are solved, and a higher punching V-angle accuracy is achieved.
Patent Information
- Application Number
- CN202420069080.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-10
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-01-10
AI Technical Summary
The existing pole sheet punching device is installed on the main body of the device, resulting in excessive load on the linear motor, and it is easy to shake when the punching motor moves, resulting in poor punching V-angle accuracy.
Design an extreme sheet punching device, which sets the punching drive member on an independent bracket, is independent of the punching mechanism, and is not driven by the reciprocating drive member, thereby reducing the load of the reciprocating drive member and avoiding punching. 驱动件随冲切机构运动,防止抖动。
By reducing the load of the reciprocating driving member, avoiding jitter of the punching driving member, the accuracy of the punching V angle is significantly improved.
Smart Images
Figure CN222430977U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of battery production equipment, in particular to a pole piece punching device. Background Art
[0002] In the lithium battery stacking process, in order to prevent the pole pieces from falling off and piercing the diaphragm, a punching device is required to perform V-angle cutting on the pole pieces.
[0003] The punching device on the market is mainly composed of a linear motor and a device body, on which a punching motor and a V-angle die are installed. The linear motor drives the device body to drive the punching motor and the V-angle die to move in the direction of pole piece conveying, and the punching motor drives the V-angle die to punch the V angle of the pole piece.
[0004] Since the punching motor is installed on the device body, the load on the linear motor is too large. In addition, the punching motor will inevitably vibrate during the movement of the linear motor, resulting in poor accuracy of the punching V angle. Utility Model Content
[0005] The utility model aims to provide a pole piece punching device, which can reduce the load of a reciprocating drive component and improve the accuracy of the punching V angle.
[0006] The embodiment of the utility model provides a technical solution:
[0007] A pole piece punching device, used for punching a V angle of a pole piece, the pole piece punching device comprising a base, a reciprocating drive member, a punching mechanism, a bracket and a punching drive member;
[0008] The reciprocating driving member is arranged on the base and connected to the punching mechanism, and is used to drive the punching mechanism to reciprocate in the conveying direction of the pole piece;
[0009] The bracket is erected on the base, and the punching drive member is arranged on the bracket and is drivingly connected to the punching mechanism, so as to drive the punching mechanism to punch the V angle of the pole piece.
[0010] In an optional embodiment, the punching mechanism includes a moving platform and a punching die movably disposed on the moving platform, and the reciprocating driving member is connected to the moving platform to drive the moving platform to reciprocate in a first direction;
[0011] The punching drive is in driving connection with the punching die, and is used to drive the punching die to reciprocate in a second direction, so that the punching die punches a V angle on the pole piece, and the second direction forms an angle with the first direction.
[0012] In an optional embodiment, a first guide rail is provided on the base, an extension direction of the first guide rail is parallel to the first direction, and the motion platform is slidably matched with the first guide rail.
[0013] In an optional embodiment, the pole piece punching device further includes a transmission assembly, the transmission assembly including a punching moving member and a reciprocating moving member that are slidably matched; the punching moving member is connected to the punching driving member, and is used to drive the reciprocating moving member to reciprocate in the second direction under the drive of the punching driving member;
[0014] The reciprocating member is drivingly connected to the punching die and is used for reciprocating in the first direction relative to the punching member under the drive of the punching die.
[0015] In an optional embodiment, a second guide rail is provided on the bracket, an extension direction of the second guide rail is parallel to the second direction, and the punching moving part is slidably matched with the second guide rail.
[0016] In an optional embodiment, a third guide rail is provided on the punching moving member, an extension direction of the third guide rail is parallel to the first direction, and the reciprocating moving member is slidably matched with the third guide rail.
[0017] In an optional embodiment, the transmission assembly also includes a rotating cam, the punching drive member is in transmission connection with the rotating cam, the rotating cam is connected to the punching moving member, and the punching mechanism is used to drive the rotating cam to rotate to drive the punching moving member to reciprocate in the second direction.
[0018] In an optional embodiment, the transmission assembly further includes a reducer, and the punching drive member is transmission-connected to the rotating cam via the reducer.
[0019] In an optional embodiment, the pole piece punching device further includes a pole piece guiding mechanism, and the pole piece guiding mechanism is disposed on the base for supporting and guiding the pole piece.
[0020] In an optional embodiment, the number of the punching mechanisms and the punching driving members are both multiple, the multiple punching mechanisms are connected to the reciprocating driving member, the multiple punching driving members are arranged on the bracket, and the multiple punching driving members are respectively connected to the multiple punching mechanisms in a transmission manner.
[0021] Compared with the prior art, the pole piece punching device provided by the utility model has a bracket erected on the base, and the punching drive is arranged on the bracket, which is independent of the punching mechanism and is not driven by the reciprocating drive to move, so that the load of the reciprocating drive is reduced. In addition, the punching drive is fixed on the bracket and does not move with the punching mechanism to avoid jitter, thereby ensuring the accuracy of the punching V angle. Therefore, the beneficial effects of the pole piece punching device provided by the utility model include: being able to reduce the load of the reciprocating drive and being able to improve the accuracy of the punching V angle. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, 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 utility model and should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can also be obtained based on these drawings without creative work.
[0023] Figure 1 A schematic diagram of a portion of the structure of a pole piece punching device provided in an embodiment of the utility model;
[0024] Figure 2 for Figure 1 Schematic diagram of the connection structure between the middle bracket and the punching drive component.
[0025] Icons: 100-pole piece punching device; 110-base; 111-first guide rail; 120-reciprocating drive member; 130-punching mechanism; 131-moving platform; 132-punching die; 140-bracket; 141-second guide rail; 150-punching drive member; 160-transmission assembly; 161-punching moving member; 162-reciprocating moving member; 163-third guide rail; 164-rotating cam; 165-reducer; 170-pole piece guiding mechanism. DETAILED DESCRIPTION
[0026] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.
[0027] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. 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.
[0028] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.
[0029] In the description of the present utility model, it should be understood that the terms "upper", "lower", "inside", "outside", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the utility model product is usually placed when in use, or are directions or positional relationships that are usually understood by those skilled in the art. These directions or positional relationships are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present utility model.
[0030] Furthermore, the terms “first”, “second”, etc. are merely used for distinguishing descriptions and should not be understood as indicating or implying relative importance.
[0031] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms such as "setting" and "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0032] The specific implementation of the utility model is described in detail below in conjunction with the accompanying drawings.
[0033] Example
[0034] See also Figure 1 , Figure 1 Shown is a partial structural schematic diagram of a pole piece punching device 100 provided in this embodiment.
[0035] The pole piece punching device 100 provided in this embodiment is used to punch a V-angle of the pole piece during the pole piece conveying process. The pole piece punching device 100 includes a base 110, a reciprocating drive member 120, a punching mechanism 130, a bracket 140, a punching drive member 150 and a pole piece guide mechanism 170. The reciprocating drive member 120, the bracket 140 and the pole piece guide mechanism 170 are all arranged on the base 110. The pole piece guide mechanism 170 is used to support and guide the pole piece conveying. The reciprocating drive member 120 is connected to the punching mechanism 130, and is used to drive the punching mechanism 130 to reciprocate in the direction of pole piece conveying. The punching drive member 150 is arranged on the bracket 140 and is transmission-connected to the punching mechanism 130, and is used to drive the punching mechanism 130 to punch a V-angle of the pole piece.
[0036] It can be seen that in the pole piece punching device 100 provided in this embodiment, the punching driving member 150 is arranged on the bracket 140, is independent of the punching mechanism 130, and does not move with the punching mechanism 130, which can significantly reduce the load of the reciprocating driving member 120. In addition, the reciprocating driving member 120 does not move with the punching mechanism 130, which can also avoid shaking, thereby ensuring the accuracy of the punching V angle.
[0037] In fact, in this embodiment, the pole piece guide mechanism 170 includes at least two support rollers erected on the base 110, and the two support rollers are arranged at intervals in the first direction. In actual application, the pole piece moves from one support roller to the other support roller. The first direction is Figure 1 The reciprocating drive member 120 drives the punching mechanism 130 to reciprocate in the first direction, so as to achieve the follow-up cutting of the pole piece by the punching mechanism 130 and improve the punching efficiency.
[0038] The bracket 140 is located on one side of the two support rollers, that is, on the side where the punching mechanism 130 follows the cutting motion trajectory. The punching drive 150 arranged on the bracket 140 can drive the punching mechanism 130 to reciprocate in the second direction, thereby achieving the V-angle punching of the pole piece during the movement in the first direction. Figure 1 In the direction indicated by the Z arrow, the first direction and the second direction form an angle. Preferably, in this embodiment, the first direction is a horizontal direction, and the second direction is a vertical direction.
[0039] The punching mechanism 130 includes a moving platform 131 and a punching die 132 movably disposed on the moving platform 131. The reciprocating drive 120 is connected to the moving platform 131 and is used to drive the moving platform 131 to reciprocate in a first direction. The punching drive 150 is in transmission connection with the punching die 132 and is used to drive the punching die 132 to reciprocate in a second direction so that the punching die 132 punches a V angle on the pole piece.
[0040] In this embodiment, the number of punching mechanisms 130 and punching driving members 150 are both multiple, and the multiple punching mechanisms 130 are all connected to the reciprocating driving member 120. The multiple punching driving members 150 are all arranged on the bracket 140, and the multiple punching driving members 150 are respectively connected to the multiple punching mechanisms 130. In practical applications, the reciprocating driving member 120 drives the multiple motion platforms 131 to move synchronously in the first direction, and the multiple punching driving members 150 drive the multiple punching dies 132 to synchronously punch the V angle of the pole piece, which can significantly improve the efficiency of punching the V angle of the pole piece.
[0041] In fact, the reciprocating drive member 120 in this embodiment is a linear motor, the stator part of which is arranged on the base 110, and the multiple mover parts are respectively connected to the motion platforms 131 of the multiple punching mechanisms 130. In order to ensure the stability and accuracy of the reciprocating motion of the multiple motion platforms 131 in the first direction, in this embodiment, a first guide rail 111 is arranged on the base 110, the extension direction of the first guide rail 111 is parallel to the first direction, and the motion platform 131 is slidably matched with the first guide rail 111. The first guide rail 111 plays a role in supporting and guiding the reciprocating motion of the motion platform 131 in the first direction.
[0042] Please refer to Figure 2 , Figure 2 It is a schematic diagram of the connection structure between the bracket 140 and the quenching driving member.
[0043] The pole piece punching device 100 provided in this embodiment further includes a transmission assembly 160, which includes a punching moving member 161 and a reciprocating member 162 that are slidably matched; the punching moving member 161 is connected to the punching driving member 150, and is used to drive the reciprocating member 162 to reciprocate in the second direction under the drive of the punching driving member 150. The reciprocating member 162 is transmission-connected to the punching die 132, and is used to reciprocate in the first direction relative to the punching moving member 161 under the drive of the punching die 132.
[0044] It is understandable that, since the punching moving member 161 and the reciprocating moving member 162 are slidably matched, when the reciprocating driving member 120 drives the moving platform 131 to drive the punching die 132 to reciprocate in the first direction, the reciprocating moving member 162 can be driven by the punching die 132 to synchronously move relative to the punching moving member 161 in the first direction, while the position of the punching moving member 161 in the first direction remains fixed. A flexible connection is achieved between the punching die 132 and the punching driving member 150, ensuring that the punching die 132 can move smoothly in both the first direction and the second direction.
[0045] It should be noted that, in another embodiment, there may be a need to adjust the position of the punching die 132 in the third direction, and the third direction is Figure 1 The direction indicated by the Y arrow in the figure is the width direction of the pole piece in practical application. In this case, the punching die 132 can also slide with the reciprocating member 162, that is, the punching die 132 can also move in the third direction relative to the reciprocating member 162 under the action of external force.
[0046] In this embodiment, the transmission assembly 160 actually further includes a rotating cam 164 and a reducer 165. The punching drive member 150 is actually a rotating shaft motor. The motor shaft of the punching drive member 150 is connected to the reducer 165. The output shaft of the reducer 165 is connected to the rotating cam 164. The rotating cam 164 is connected to the punching moving member 161. In actual application, the punching drive member 150 drives the rotating cam 164 to rotate in a vertical plane through the reducer 165, thereby driving the punching moving member 161 to reciprocate in the second direction.
[0047] It is understandable that, during the reciprocating motion of the punching moving member 161 in the second direction, the punching die 132 is driven to move synchronously in the second direction through the reciprocating moving member 162. In practical applications, the pole piece is located below the punching die 132, and the pole piece is punched at a V angle during the process of the punching moving member 161 driving the punching die 132 to move vertically downward through the reciprocating moving member 162. After the punching is completed, the punching moving member 161 drives the punching die 132 to move vertically upward through the reciprocating moving member 162 to reset.
[0048] In order to ensure smooth movement of the punching moving part 161 in the second direction, ensure smooth movement of the punching die 132 in the second direction, and further improve the accuracy of the punching V angle, in this embodiment, a second guide rail 141 is provided on the bracket 140, and the extension direction of the second guide rail 141 is parallel to the second direction. The punching moving part 161 slides with the second guide rail 141, and the second guide rail 141 plays a role of limiting and guiding the movement of the punching moving part 161 in the second direction, thereby preventing the punching moving part 161 from shaking in other directions during movement.
[0049] Regarding the sliding cooperation between the punching moving member 161 and the reciprocating moving member 162, in this embodiment, a third guide rail 163 is provided on the punching moving member 161, the extension direction of the third guide rail 163 is parallel to the first direction, and the reciprocating moving member 162 is slidably cooperated with the third guide rail 163. It can be understood that the third guide rail 163 provides guidance and support for the smooth movement of the reciprocating moving member 162 relative to the punching moving member 161 in the first direction.
[0050] In summary, in the actual application of the pole piece punching device 100 provided in this embodiment, the pole piece is transported along the first direction under the action of the pole piece guide mechanism 170. During this process, the reciprocating driving member 120 drives the punching mechanism 130 to move along the first direction, the punching die 132 moves synchronously with the punching platform in the first direction, and the reciprocating moving member 162 slides in the first direction relative to the punching moving member 161 driven by the punching die 132. During this process, the punching driving member 150 drives the rotating cam 164 to rotate through the reducer 165, thereby driving the punching moving member 161 and the reciprocating moving member 162 to move in the second direction, and then the reciprocating moving member 162 drives the punching die 132 to move in the second direction, so as to complete the V-angle punching of the pole piece.
[0051] Therefore, the pole piece punching device 100 provided in this embodiment can reduce the load of the reciprocating drive member 120 and improve the accuracy of the punching V angle.
[0052] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A pole piece punching device, used for punching a pole piece V angle, characterized in that: The pole piece punching device (100) comprises a base (110), a reciprocating driving member (120), a punching mechanism (130), a bracket (140) and a punching driving member (150); The reciprocating drive member (120) is arranged on the base (110) and connected to the punching mechanism (130), and is used to drive the punching mechanism (130) to reciprocate in the conveying direction of the pole piece; The bracket (140) is erected on the base (110), and the punching drive member (150) is disposed on the bracket (140) and is drivingly connected to the punching mechanism (130) for driving the punching mechanism (130) to punch a V angle on the pole piece.
2. The pole piece punching device according to claim 1, characterized in that: The punching mechanism (130) comprises a moving platform (131) and a punching die (132) movably arranged on the moving platform (131); the reciprocating driving member (120) is connected to the moving platform (131) and is used to drive the moving platform (131) to reciprocate in a first direction; The punching drive member (150) is in driving connection with the punching die (132) and is used to drive the punching die (132) to reciprocate in a second direction so that the punching die (132) punches a V-angle on the pole piece, and the second direction forms an angle with the first direction.
3. The pole piece punching device according to claim 2, characterized in that: The base (110) is provided with a first guide rail (111), the extension direction of the first guide rail (111) is parallel to the first direction, and the motion platform (131) is slidably matched with the first guide rail (111).
4. The pole piece punching device according to claim 2, characterized in that: The pole piece punching device (100) further comprises a transmission assembly (160), wherein the transmission assembly (160) comprises a punching moving member (161) and a reciprocating moving member (162) that are slidably matched; the punching moving member (161) is connected to the punching driving member (150) and is used to drive the reciprocating moving member (162) to reciprocate in the second direction under the drive of the punching driving member (150); The reciprocating member (162) is drivingly connected to the punching die (132) and is used to reciprocate in the first direction relative to the punching member (161) under the drive of the punching die (132).
5. The pole piece punching device according to claim 4, characterized in that: The bracket (140) is provided with a second guide rail (141), the extension direction of the second guide rail (141) is parallel to the second direction, and the punching moving part (161) is slidably matched with the second guide rail (141).
6. The pole piece punching device according to claim 4, characterized in that: The punching moving part (161) is provided with a third guide rail (163), the extension direction of the third guide rail (163) is parallel to the first direction, and the reciprocating moving part (162) is slidably matched with the third guide rail (163).
7. The pole piece punching device according to claim 4, characterized in that: The transmission assembly (160) further comprises a rotating cam (164), the punching drive member (150) is in transmission connection with the rotating cam (164), the rotating cam (164) is connected with the punching moving member (161), and the punching mechanism (130) is used to drive the rotating cam (164) to rotate, so as to drive the punching moving member (161) to reciprocate in the second direction.
8. The pole piece punching device according to claim 7, characterized in that: The transmission assembly (160) further comprises a reducer (165), and the punching drive member (150) is transmission-connected to the rotating cam (164) via the reducer (165).
9. The pole piece punching device according to claim 1, characterized in that: The pole piece punching device (100) further comprises a pole piece guiding mechanism (170), wherein the pole piece guiding mechanism (170) is arranged on the base (110) and is used to support and guide the pole piece.
10. The pole piece punching device according to claim 1, characterized in that: The punching mechanisms (130) and the punching drive members (150) are both multiple in number, the multiple punching mechanisms (130) are all connected to the reciprocating drive member (120), the multiple punching drive members (150) are all arranged on the bracket (140), and the multiple punching drive members (150) are respectively connected to the multiple punching mechanisms (130) in a transmission manner.