A bending device for copper bars

Abstract

The application provides a bending device for copper bars, which comprises a base, a fixed mold module, a positioning assembly and a movable mold module assembly. The fixed mold module is arranged on a boss in a first horizontal direction and is configured to provide a preset shape for bending the copper bars. The positioning assembly is fixedly arranged on the boss and is configured to position the first end of the copper bars. The positioned copper bars are arranged between the fixed mold module and the movable mold module assembly. The movable mold module assembly is arranged on the base and is configured to press the copper bars to make the preset position of the side extending along the width direction of the copper bars adhere to the fixed mold module. After the first end of the copper bars is positioned by the positioning assembly, the movable mold module assembly is matched to press the copper bars against the fixed mold module with the preset bending shape, so as to ensure the accuracy of the bending position and the bending angle of the copper bars.

Description

Technical Field

[0001] This utility model relates to the field of new energy battery manufacturing technology, and in particular to a bending device for copper busbars. Background Technology

[0002] As a key structural component in new energy batteries, copper busbars are mainly used for electrical connections in terminals, busbars, and battery modules. Their dimensional accuracy and structural consistency directly affect the battery's conductivity and assembly reliability. To adapt to different installation spaces, heat dissipation requirements, and electrical connection layouts, copper busbars often need to be bent and shaped in specific locations to form a pre-defined structure to meet specific application scenarios.

[0003] Currently, manual bending is commonly used in production, which relies heavily on the operator's experience, has poor bending accuracy, and cannot guarantee the correctness of bending angle and position. This makes it difficult to meet the requirements of the new energy battery industry for high-precision, mass production of copper busbars. Furthermore, the bending process is prone to surface indentations, local warping, and angle springback, affecting the assembly quality and electrical performance of the copper busbars. Utility Model Content

[0004] The purpose of this application is to provide a bending device for copper busbars to solve the problem of inaccurate bending of battery copper busbars in the prior art.

[0005] To achieve this objective, the following technical solution is adopted in this application:

[0006] This application provides a bending device for copper busbars, comprising a base, a fixed module, a positioning assembly, and a moving module assembly, wherein:

[0007] A boss is horizontally provided on the base, and a positioning module is provided on the boss along the first horizontal direction. The positioning module is configured to provide a preset shape for bending the copper busbar. A positioning component is fixedly provided on the boss and is positioned to position the first end of the copper busbar.

[0008] The positioned copper busbar is placed between the fixed module and the moving module assembly. The moving module assembly is placed on the base and is configured to apply pressure to the copper busbar so that a preset position on one side of the copper busbar extending along its own width direction is fitted with the fixed module.

[0009] Optionally, the moving module component includes a first moving module, a second moving module, and a third moving module, wherein:

[0010] The first moving module is disposed on the first side of the fixed module extending along the second horizontal direction. The first moving module is configured to apply pressure to the copper busbar along the first horizontal direction so that the corresponding part of the copper busbar is positioned and abutted against the first end of the fixed module along the first horizontal direction.

[0011] The second moving module is disposed on the first side of the fixed module extending along the first horizontal direction. The second moving module is configured to apply pressure to the copper busbar after the first moving module is positioned along the second horizontal direction so that the corresponding part of the copper busbar is positioned and abuts against the first end of the fixed module along the second horizontal direction.

[0012] The third moving module is disposed on the second side of the fixed module extending along the second horizontal direction. The third moving module is configured to apply pressure to the copper busbar after the second moving module is positioned along the first horizontal direction so that the corresponding part of the copper busbar is positioned and abuts against the second end of the fixed module along the first horizontal direction.

[0013] Optionally, the positioning component includes a positioning block and a first positioning post, wherein: at least a first end of the copper busbar is provided with a positioning hole and the first end of the copper busbar has a vertically bent structure; the positioning block is fixedly set on the boss and located obliquely above the first end of the fixed module; a limiting surface is provided at the end of the positioning block near the fixed module along the second horizontal direction and the limiting surface extends along the first horizontal direction; the first positioning post is fixedly installed at a preset position on the limiting surface along the second horizontal direction and the first positioning post is adapted to the positioning hole.

[0014] Optionally, the first moving module includes a first driving component and a first moving module, wherein:

[0015] The first end of the fixed module along the first horizontal direction is provided with a first pressure-bearing surface, and the first pressure-bearing surface extends along the second horizontal direction;

[0016] The fixed end of the first driving member is set on the base, and the driving end of the first driving member is connected to the first moving module. The side of the first moving module facing the fixed module is in contact with the first pressure-bearing surface. The first driving member is configured to drive the first moving module to move closer to or away from the fixed module in the first horizontal direction.

[0017] Optionally, the second motion module includes a second drive unit and a second motion module, wherein:

[0018] The fixed module is provided with a second pressure-bearing surface facing the second moving module. The middle part of the second pressure-bearing surface is set as an arc shape away from the second moving module. The side of the second moving module facing the fixed module matches the second pressure-bearing surface.

[0019] The fixed end of the second driving member is disposed on the base, and the driving end of the second driving member is connected to the second moving module. The second driving member is configured to drive the second moving module to move closer to or away from the fixed module along the second horizontal direction.

[0020] Optionally, the third motion module includes a third drive unit and a third motion module, wherein:

[0021] The fixed module is provided with a third pressure-bearing surface at its second end along the first horizontal direction, and the third pressure-bearing surface extends along the second horizontal direction.

[0022] The fixed end of the third driving component is set on the base, and the driving end of the third driving component is connected to the third moving module. The side of the third moving module facing the fixed module is in contact with the third pressure-bearing surface. The first driving component is configured to drive the first moving module to move closer to or away from the fixed module along the first horizontal direction.

[0023] Optionally, a first arc surface is provided at the junction of the first pressure-bearing surface and the second pressure-bearing surface, and a first bending part is provided at the end of the first moving module that is close to the second moving module along the second horizontal direction and faces the fixed module. The first bending part is adapted to the first arc surface.

[0024] A second arc surface is provided at the junction of the second pressure-bearing surface and the third pressure-bearing surface. A second bending part is provided at the end of the second moving module that is close to the third pressure-bearing surface along the first horizontal direction and faces the fixed module. The second bending part is adapted to the second arc surface.

[0025] Optionally, the first drive component is configured as a quick-release clamp, and the first, second, and third drive components have the same structure.

[0026] Compared with the prior art, the bending device for copper busbars proposed in this application has the following advantages:

[0027] 1) After the first end of the copper busbar is positioned by the positioning component, the corresponding driving component and moving module are used to press the copper busbar against the fixed module with the preset bending shape, ensuring the accuracy of the bending position and bending angle on the copper busbar. At the same time, the uniform pressure of the moving module reduces the risk of indentation and warping on the surface of the copper busbar.

[0028] 2) Applying pressure to the copper busbar in stages through three sets of moving modules reduces material springback and facilitates precise control of multi-angle bending of the copper busbar.

[0029] 3) The cooperation of the first driving component, the first moving module and the first bearing surface provides a simple positioning method, which makes it easy to reliably push the copper busbar to the initial position of the fixed module, providing an accurate reference for subsequent bending operations and helping to improve the overall bending accuracy. Attached Figure Description

[0030] To more clearly illustrate and understand the technical solutions in the embodiments of this application, the accompanying drawings used in the background technology and embodiment descriptions of this application will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this application and these drawings without creative effort.

[0031] Figure 1 This is a top view of the bending device for copper busbars provided in an embodiment of this application;

[0032] Figure 2yes Figure 1 Enlarged view of point A in the middle;

[0033] Figure 3 This is an assembly diagram of the third drive module of the bending device for copper busbars provided in an embodiment of this application;

[0034] Figure 4 This is a top view of the second drive unit. Detailed Implementation

[0035] To facilitate understanding of this application, a more complete description of the application will be provided below with reference to the accompanying drawings. Preferred embodiments of the application are shown in the drawings. However, the application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this application. It should be noted that when a component is referred to as being "fixed to" another component, it can be directly on the other component or there may be an intermediate component. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or there may be an intermediate component. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0036] Please see Figures 1 to 4 As shown in the embodiment of this application, a bending device for copper busbars includes a base 10, a fixed module 20, a positioning component 30, and a moving module component 40, wherein: a boss 11 is horizontally provided on the base 10, and the fixed module 20 is positioned along a first horizontal direction ( Figure 1 The copper busbar (in the direction of X) is set on the boss 11. The fixed module 20 is configured to provide a preset shape for bending the copper busbar. The positioning component 30 is fixedly set on the boss 11 and is positioned at the first end of the copper busbar. The positioned copper busbar is set between the fixed module 20 and the moving module component 40. The moving module component 40 is set on the base 10 and is configured to apply pressure to the copper busbar so that the preset position of the side of the copper busbar extending along its own width direction is fitted with the fixed module 20.

[0037] Specifically, each moving module assembly 40 and boss 11 is fixed to the base by bolt assembly 50, and the positioning assembly 30 and fixed module 20 are fixed to the boss 11 by bolt assembly 50.

[0038] After the first end of the copper busbar is positioned by the positioning component 30, the moving module component 40 is used to press the copper busbar against the fixed module 20 with a preset bending shape to ensure the accuracy of the bending position and bending angle on the copper busbar.

[0039] In one embodiment, the moving module assembly 40 includes a first moving module 41, a second moving module 42, and a third moving module 43, wherein: the first moving module 41 is disposed on the stationary module 20 along a second horizontal direction ( Figure 1 On the first side extending in the Y direction, a first moving module 41 is configured to apply pressure to the copper busbar in the first horizontal direction so that the corresponding part of the copper busbar is positioned and abutted against the first end of the fixed module 20 in the first horizontal direction; a second moving module 42 is disposed on the first side extending in the first horizontal direction of the fixed module 20, and the second moving module 42 is configured to apply pressure to the copper busbar positioned by the first moving module 41 in the second horizontal direction so that the corresponding part of the copper busbar is positioned and abutted against the first end of the fixed module 20 in the second horizontal direction; a third moving module 43 is disposed on the second side extending in the second horizontal direction of the fixed module 20, and the third moving module 43 is configured to apply pressure to the copper busbar positioned by the second moving module 42 in the first horizontal direction so that the corresponding part of the copper busbar is positioned and abutted against the second end of the fixed module 20 in the first horizontal direction.

[0040] Specifically, the first horizontal direction is perpendicular to the second horizontal direction.

[0041] Applying pressure to the copper busbar in stages using three sets of moving modules reduces material springback and facilitates precise control of multi-angle bending of the copper busbar.

[0042] In one embodiment, the positioning component 30 includes a positioning block 31 and a first positioning post 32, wherein: at least a first end of the copper busbar is provided with a positioning hole and the first end of the copper busbar has a vertically bent structure; the positioning block 31 is fixedly disposed on the boss 11 and located obliquely above the first end of the positioning module 20; a limiting surface 310 is provided at one end of the positioning block 31 near the positioning module 20 along the second horizontal direction and the limiting surface 310 extends along the first horizontal direction; and the first positioning post 32 is fixedly installed at a preset position on the limiting surface 310 along the second horizontal direction and the first positioning post 32 is adapted to the positioning hole.

[0043] By setting a limiting surface 310 and a first positioning post 32 that cooperates with the positioning hole of the copper busbar, it is convenient to quickly place the copper busbar and achieve accurate positioning of its first end, thereby improving the clamping efficiency of the copper busbar and the stability and accuracy of positioning during repeated operations.

[0044] In one embodiment, the first moving module 41 includes a first driving member 410 and a first moving module 411, wherein: the fixed module 20 is provided with a first pressure-bearing surface 21 at a first end along a first horizontal direction, and the first pressure-bearing surface 21 extends along a second horizontal direction; the fixed end of the first driving member 410 is provided on the base 10, the driving end of the first driving member 410 is connected to the first moving module 411, the side of the first moving module 411 facing the fixed module 20 is engaged with the first pressure-bearing surface 21, and the first driving member 410 is configured to drive the first moving module 411 to move closer to or away from the fixed module 20 along the first horizontal direction.

[0045] The cooperation of the first driving component 410, the first moving module 411 and the first bearing surface 21 facilitates the reliable pushing of the copper busbar to the initial position of the fixed module 20, providing an accurate reference for subsequent bending operations and helping to improve the overall bending accuracy and consistency.

[0046] In one embodiment, the second moving module 42 includes a second driving member 420 and a second moving module 421, wherein: the fixed module 20 is provided with a second pressure-bearing surface 22 facing the second moving module 421, the middle part of the second pressure-bearing surface 22 is configured as an arc shape away from the second moving module 421, and the side of the second moving module 421 facing the fixed module 20 is fitted with the second pressure-bearing surface 22; the fixed end of the second driving member 420 is provided on the base 10, the driving end of the second driving member 420 is connected to the second moving module 421, and the second driving member 420 is configured to drive the second moving module 421 to approach or move away from the fixed module 20 along a second horizontal direction.

[0047] The second driving component 420 drives the second moving module 421 to press against the second pressure surface 22, so that the copper busbar is initially bent at the connection between the first pressure surface 21 and the second pressure surface 22. At the same time, the second pressure surface 22, which has an arc shape in the middle, cooperates with the matching second moving module 421 to make the corresponding part of the copper busbar bend into a preset shape.

[0048] In one embodiment, the third moving module 43 includes a third driving member 430 and a third moving module 431, wherein: the fixed module 20 is provided with a third pressure-bearing surface 23 at its second end along the first horizontal direction, and the third pressure-bearing surface 23 extends along the second horizontal direction; the fixed end of the third driving member 430 is provided on the base 10, the driving end of the third driving member 430 is connected to the third moving module 431, and the side of the third moving module 431 facing the fixed module 20 is engaged with the third pressure-bearing surface 23; the first driving member 410 is configured to drive the first moving module 411 to move closer to or away from the fixed module 20 along the first horizontal direction.

[0049] Specifically, a positioning hole is provided at the preset position of the second end of the copper busbar, and a second positioning post 230 is fixedly provided on the third bearing surface 23. The second positioning post 230 extends along the first horizontal direction and is adapted to the positioning hole. The second positioning post 230 is inserted into the positioning hole of the second section of the copper busbar to further ensure the accuracy of the copper busbar bending.

[0050] Specifically, the third moving module 431 is provided with a relief groove facing the third pressure bearing surface 23 along the first horizontal direction. The relief groove is configured to avoid the second positioning post 230 to ensure that the copper busbar is subjected to uniform force when it is pressed against the third pressure bearing surface 23.

[0051] Specifically, when the first positioning post 32 and the second positioning post 230 are inserted into the corresponding positioning holes, the side of the copper busbar closest to the boss 11 along the width direction contacts the upper surface of the boss 11, which further improves the stability of the copper busbar bending.

[0052] The third driving component 430 drives the third moving module 431 to press against the third bearing surface 23, thereby realizing the bending action of the copper busbar at the connection between the second bearing surface 22 and the third bearing surface 23.

[0053] In one embodiment, a first arc surface 211 is provided at the junction of the first pressure-bearing surface 21 and the second pressure-bearing surface 22. A first bending portion 4110 is provided at the end of the first moving module 411 along the second horizontal direction near the second moving module 421 and facing the fixed module 20. The first bending portion 4110 is adapted to the first arc surface 211. A second arc surface is provided at the junction of the second pressure-bearing surface 22 and the third pressure-bearing surface 23. A second bending portion 4210 is provided at the end of the second moving module 421 along the first horizontal direction near the third pressure-bearing surface 23 and facing the fixed module 20. The second bending portion is adapted to the second arc surface.

[0054] By setting an arc surface at the junction of the pressure-bearing surfaces and setting a corresponding bending part on the moving module, a buffer transition area is formed, which avoids damage to the copper busbar due to excessive bending and improves the safety and smoothness of bending.

[0055] In one embodiment, the first drive member 410 is configured as a quick-release clamp, and the first drive member 410, the second drive member 420 and the third drive member 430 have the same structure.

[0056] Specifically, the quick-release clamp includes a mounting base 411, a push rod 412, an operating lever 413, and at least one connecting plate 414. The mounting base 411 is fixedly mounted on the base 10. A guide sleeve 4110 is provided at one end of the mounting base 411 along the extension direction of the push rod 412. The first end of the push rod 412 along its own length is connected to a corresponding pressure block. The other end of the mounting base 411 along the extension direction of the push rod 412 is inclined upward. The end of the operating lever 413 is hinged to the other end of the mounting base 411 and the operating lever 413 is bent downward. The first end of the connecting plate 414 is hinged to the second end of the push rod 412, and the second end of the connecting plate 414 is hinged to the bent portion. The operating lever 413 rotates counterclockwise to push the push rod 412 away from the push rod 412 within the guide sleeve 4110 through the connecting plate 414.

[0057] Specifically, the quick-release clamp is equipped with two connecting plates 414, which are located on both sides of the operating lever 413.

[0058] By setting all driving components as quick-release clamps, a driving component with a simple structure, convenient operation and guiding function is provided, which improves the stability and speed of the moving module operation.

[0059] The above embodiments merely illustrate the basic principles and characteristics of this application. This application is not limited to the above examples. Various changes and modifications can be made to this application without departing from the spirit and scope thereof, and all such changes and modifications fall within the scope of this application as claimed. The scope of protection of this application is defined by the appended claims and their equivalents.

Claims

1. A bending device for a copper bar, characterized by, The bending device for copper busbars includes a base, a fixed module, a positioning assembly, and a moving module assembly, wherein: A boss is horizontally provided on the base, and a positioning module is provided on the boss along the first horizontal direction. The positioning module is configured to provide a preset shape for bending the copper busbar. The positioning component is fixedly provided on the boss and is used to position the first end of the copper busbar. The copper busbar, after being positioned, is disposed between the fixed module and the moving module assembly. The moving module assembly is disposed on the base and is configured to apply pressure to the copper busbar so that a preset position on one side of the copper busbar extending along its own width direction is fitted with the fixed module.

2. The bending device for copper bar according to claim 1, wherein The moving module assembly includes a first moving module, a second moving module, and a third moving module, wherein: The first moving module is disposed on the first side of the fixed module extending along the second horizontal direction. The first moving module is configured to apply pressure to the copper busbar along the first horizontal direction so that the corresponding part of the copper busbar is positioned and abutted against the first end of the fixed module along the first horizontal direction. The second moving module is disposed on the first side of the fixed module extending along the first horizontal direction. The second moving module is configured to apply pressure to the copper busbar after the first moving module is positioned along the second horizontal direction so that the corresponding part of the copper busbar is positioned and abuts against the first end of the fixed module along the second horizontal direction. The third moving module is disposed on the second side of the fixed module extending along the second horizontal direction. The third moving module is configured to apply pressure to the copper busbar after the second moving module is positioned along the first horizontal direction so that the corresponding part of the copper busbar is positioned and abuts against the second end of the fixed module along the first horizontal direction.

3. The bending device for copper bars according to claim 2, characterized in that, The positioning component includes a positioning block and a first positioning post, wherein: The copper busbar has a positioning hole at at least at its first end and the first end of the copper busbar has a vertically bent structure. The positioning block is fixedly disposed on the boss and located obliquely above the first end of the fixed module. The positioning block has a limiting surface at one end near the fixed module along the second horizontal direction and the limiting surface extends along the first horizontal direction. The first positioning post is fixedly installed at a preset position on the limiting surface along the second horizontal direction and the first positioning post is adapted to the positioning hole.

4. The bending device for copper bar according to claim 2, wherein The first moving module includes a first driving component and a first moving module, wherein: The fixed module is provided with a first pressure-bearing surface at its first end along the first horizontal direction, and the first pressure-bearing surface extends along the second horizontal direction. The fixed end of the first driving member is disposed on the base, and the driving end of the first driving member is connected to the first moving module. The side of the first moving module facing the fixed module is in contact with the first pressure-bearing surface. The first driving member is configured to drive the first moving module to move closer to or away from the fixed module along the first horizontal direction.

5. The bending device for copper bar according to claim 4, wherein The second moving module includes a second driving element and a second moving module, wherein: The fixed module is provided with a second pressure-bearing surface facing the second moving module. The middle part of the second pressure-bearing surface is set as an arc shape away from the second moving module. The side of the second moving module facing the fixed module is matched with the second pressure-bearing surface. The fixed end of the second driving member is disposed on the base, and the driving end of the second driving member is connected to the second moving module. The second driving member is configured to drive the second moving module to move closer to or away from the fixed module along the second horizontal direction.

6. The bending device for copper bars according to claim 5, characterized in that, The third motion module includes a third driving component and a third motion module, wherein: The fixed module is provided with a third pressure-bearing surface at its second end along the first horizontal direction, and the third pressure-bearing surface extends along the second horizontal direction. The fixed end of the third driving member is disposed on the base, and the driving end of the third driving member is connected to the third moving module. The side of the third moving module facing the fixed module is in contact with the third pressure-bearing surface. The first driving member is configured to drive the first moving module to move closer to or away from the fixed module along the first horizontal direction.

7. The bending device for copper bars according to claim 6, characterized in that, A first arc surface is provided at the junction of the first pressure-bearing surface and the second pressure-bearing surface. A first bending part is provided at the end of the first moving module that is close to the second moving module along the second horizontal direction and faces the fixed module. The first bending part is adapted to the first arc surface. A second arc surface is provided at the junction of the second pressure-bearing surface and the third pressure-bearing surface. The second moving module is provided with a second bending part at one end of the second moving module that is close to the third pressure-bearing surface along the first horizontal direction and faces the fixed module. The second bending part is adapted to the second arc surface.

8. The bending device for copper bar according to claim 6, wherein The first driving component is configured as a quick-release clamp, and the first driving component, the second driving component, and the third driving component have the same structure.

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