New energy bending die movable positioning device

Abstract

The utility model discloses a new energy bending die movable positioning device relates to die technical field, aims at solving the problem of poor size of existing fixed positioning structure interference copper row. It includes lower die seat, and the fixed top end of lower die seat is with the forming block of "V" shape copper row forming groove, and the adaptive bending punch is equipped in the direct upper side of forming block, and the top end of lower die seat is equipped with a plurality of static positioning block and adaptive dynamic positioning spare, and copper row is collectively restricted. Adaptive dynamic positioning spare contains pedestal, L type fixed block, dynamic positioning block and spring, and dynamic positioning block is through the sliding fit of limiting boss and pedestal limiting groove, and spring connects L type fixed block and dynamic positioning block. The edge of lower die seat is equipped with the avoidance groove, and static and dynamic positioning block all have transition inclined plane to copper row end. The device can avoid the interference of copper row bending, and improves the forming precision and the qualified rate.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, and in particular to a movable positioning device for a new energy bending mold. Background Technology

[0002] Copper busbars are widely used in energy storage, photovoltaic, and other equipment due to their excellent conductivity. The bending and forming accuracy of these busbars directly affects the conductivity stability and assembly compatibility of the equipment; therefore, the positioning structure of the copper busbar bending die has extremely high requirements. The positioning structure of existing new energy copper busbar bending and forming dies is shown in the attached figure. Figure 1 As shown in the figure, a number of positioning blocks that are fixed on both sides are generally used as the core constraint components. The positioning blocks are in rigid contact with the edge of the copper busbar to fix the position of the copper busbar before bending.

[0003] However, during the bending process of the copper busbar, the bent section undergoes plastic deformation due to the pressure from the bending punch and the forming block, while the non-bending section connected to the bent section will deflect synchronously due to stress transmission. Since the spacing between the positioning blocks on both sides is fixed and cannot be adaptively adjusted to the dynamic deformation of the copper busbar, the fixed positioning blocks will interact with the edge of the copper busbar during the deflection process (see attached image). Figure 1 Hard interference occurs in the area marked by the red line. This interference not only scratches the surface of the copper busbar, but also forces additional deformation in the non-bending section of the copper busbar. Ultimately, this leads to defects such as dimensional deviations and angular offsets after the copper busbar is bent, making it difficult to meet the high-precision requirements of new energy equipment for copper busbars. At the same time, it increases the product scrap rate and production costs. Utility Model Content

[0004] To address the technical problems existing in the background art, this utility model proposes a new energy bending die movable positioning device.

[0005] This utility model proposes a new energy bending die movable positioning device, including a lower die base, a forming block fixed inside the lower die base, a bending punch arranged directly above the forming block, several static positioning blocks and an adaptive dynamic positioning component fixed at the top of the lower die base, the static positioning blocks and the adaptive dynamic positioning component jointly constrain a copper busbar, the adaptive dynamic positioning component includes a base embedded and fixed inside the lower die base, an L-shaped fixing block fixedly connected to the top of the base and a movably arranged dynamic positioning block, and a spring connecting the L-shaped fixing block and the dynamic positioning block.

[0006] Furthermore, the lower mold base has clearance grooves on its edge to prevent the copper busbar from interfering with the lower mold base due to flipping during the bending process.

[0007] Furthermore, a copper busbar forming groove is formed at the top of the forming block. The copper busbar forming groove is "V" shaped, and the bottom end of the bending punch is adapted to the copper busbar forming groove.

[0008] Furthermore, a limiting groove is formed inside the base, and a limiting protrusion is connected to the bottom end of the dynamic positioning block. The limiting protrusion is inside the limiting groove, and the length of the limiting groove is greater than the length of the limiting protrusion, so as to meet the travel of the dynamic positioning block.

[0009] Furthermore, a limiting hole is provided on one side of the dynamic positioning block, and the spring is located inside the limiting hole, with both ends abutting against the L-shaped fixing block and the dynamic positioning block.

[0010] Furthermore, both the static positioning block and the dynamic positioning block have transition slopes at their ends facing the copper busbar.

[0011] The beneficial effects of this utility model are as follows: By combining a static positioning block and a spring-loaded, slidable dynamic positioning block at the top of the lower die base, a dynamic positioning component can be installed to achieve precise positioning before the copper busbar is bent. During the bending process, when the non-bending section of the copper busbar deflects due to bending deformation and squeezes the dynamic positioning block, the dynamic positioning block can flexibly retract along the base limiting groove to compress the spring, avoiding hard interference from the fixed positioning block to the edge of the copper busbar. At the same time, the clearance groove on the edge of the lower die base can prevent the copper busbar from colliding with the lower die base when it flips over. This effectively solves the problems of copper busbar deformation and dimensional defects caused by the existing fixed positioning structure, significantly improving the bending and forming accuracy and product qualification rate of new energy copper busbars. Moreover, the dynamic positioning block can automatically reset under the action of the spring, adapting to the needs of continuous bending operations and reducing production costs. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of a bending die positioning device in the prior art; Figure 2 This is a schematic diagram of the disassembled structure of this utility model; Figure 3 This is a schematic diagram of the disassembled structure of the adaptive dynamic positioning component in this utility model; Figure 4 This is a half-sectional view of the adaptive dynamic positioning component after assembly in this utility model; Figure 5 This is a schematic diagram of the assembly structure of the copper busbar in this utility model when it is not bent; Figure 6 This is a schematic diagram of the assembly structure of the copper busbar after bending in this utility model.

[0013] In the diagram: 1. Lower die base; 11. Clearance groove; 2. Static positioning block; 3. Adaptive dynamic positioning component; 31. L-shaped fixing block; 32. Base; 321. Limiting groove; 33. Dynamic positioning block; 331. Limiting protrusion; 332. Limiting hole; 333. Transition slope; 34. Spring; 4. Copper busbar; 5. Forming block; 51. Copper busbar forming groove; 6. Bending punch. Detailed Implementation

[0014] Reference Figure 2-6 This utility model proposes a new energy bending die movable positioning device, including a lower die base 1, a forming block 5 fixed inside the lower die base 1, a "V"-shaped copper busbar forming groove 51 opened at the top of the forming block 5, and a bending punch 6 correspondingly arranged directly above the forming block 5. The bottom shape of the bending punch 6 is perfectly matched with the copper busbar forming groove 51. When the bending punch 6 moves downward under the drive of external power, it can press the copper busbar 4 placed above the copper busbar forming groove 51 into the groove. Through the cooperation of the punch and the forming groove, the copper busbar is accurately bent and formed. At the same time, an avoidance groove 11 is opened on the edge of the lower die base 1. The position of the avoidance groove matches the flipping trajectory of the copper busbar 4 when bending, which can effectively prevent the copper busbar from colliding and interfering with the edge of the lower die base 1 due to upward flipping during the bending process, and prevent the surface of the copper busbar from being scratched or deformed. At the top of the lower mold base 1, several static positioning blocks 2 and adaptive dynamic positioning components 3 are fixed according to the size of the copper busbar 4 and the bending process requirements. The two are distributed at intervals along the length of the copper busbar, and together they form a bidirectional constraint on the copper busbar 4 to ensure that the copper busbar is in the preset processing position before bending. Among them, the static positioning block 2 is a fixed structure that is directly rigidly connected to the top of the lower mold base 1. Its end facing the copper busbar 4 is provided with a transition slope 333. This slope can guide the copper busbar to be quickly and accurately placed into the positioning area, while avoiding damage caused by the corners when the copper busbar comes into contact with the positioning block. The adaptive dynamic positioning component 3 consists of an L-shaped fixing block 31, a base 32, a dynamic positioning block 33, and a spring 34. The base 32 is embedded and fixed inside the lower mold base 1, providing stable support for the entire dynamic positioning assembly. The base 32 has a long strip-shaped limiting groove 321 inside. The dynamic positioning block 33 is movably set at the top of the base 32, and its bottom end is integrally connected to a limiting protrusion 331. The limiting protrusion 331 is embedded inside the limiting groove 321, and the length of the limiting groove 321 is greater than the length of the limiting protrusion 331. This design provides the dynamic positioning block 33 with an adjustable stroke, allowing the dynamic positioning block 33 to slide flexibly along the length direction of the limiting groove, while preventing the dynamic positioning block from falling off the base. The L-shaped fixing block 31 is fixedly connected to one side of the top of the base 32. Its vertical section is opposite to the dynamic positioning block 33. A spring 34 is connected between the two. To ensure the installation stability of the spring 34, a circular limiting hole 332 is opened on the side of the dynamic positioning block 33 facing the L-shaped fixing block 31. One end of the spring 34 is embedded in the limiting hole 332 and abuts against the dynamic positioning block 33, while the other end abuts against the vertical section of the L-shaped fixing block 31. In its natural state, the spring 34 is slightly compressed, and its elastic force pushes the dynamic positioning block 33 to move towards the copper busbar 4, cooperating with the static positioning block 2 to clamp and position the copper busbar. When the copper busbar generates a squeezing force towards the dynamic positioning block 33 during bending, the dynamic positioning block 33 can compress the spring 34 and slide away from the copper busbar along the limiting groove 321, providing the copper busbar with a certain amount of room to move and avoiding deformation of the copper busbar due to the rigid constraint of the positioning structure. After the bending operation is completed, the elastic force of the spring 34 can push the dynamic positioning block 33 to automatically reset, preparing for the next copper busbar positioning. In addition, the end of the dynamic positioning block 33 facing the copper busbar 4 is also provided with a transition slope 333, which cooperates with the transition slope of the static positioning block 2 to further optimize the placement guidance effect of the copper busbar, while reducing the contact stress between the copper busbar and the positioning block and protecting the surface quality of the copper busbar.

[0015] In actual operation, the operator first places the copper busbar 4 in the positioning area at the top of the lower die base 1. Through the joint constraint of the static positioning block 2 and the adaptive dynamic positioning component 3, the copper busbar is precisely aligned with the copper busbar forming groove 51 of the forming block 5. Then, the punch is turned on, driving the bending punch 6 to move downward. The punch presses the copper busbar into the "V"-shaped copper busbar forming groove 51 to complete the bending action. If the copper busbar tends to flip during this process, the avoidance groove 11 can prevent it from interfering with the lower die base. If the copper busbar is squeezed towards the dynamic positioning block 33, the dynamic positioning block can slide along the limiting groove and compress the spring 34 to prevent the copper busbar from deforming. After the bending is completed, the bending punch 6 returns to its original position. The operator takes out the formed copper busbar, and the dynamic positioning block 33 automatically returns to its original position under the elastic force of the spring 34, so that the bending operation of the next copper busbar can begin.

[0016] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A new energy bending die movable positioning device, comprising a lower die seat (1), a forming block (5) is fixed inside the lower die seat (1), a bending punch (6) is arranged directly above the forming block (5), characterized in that, The top of the lower mold base (1) is fixed with several static positioning blocks (2) and adaptive dynamic positioning components (3). The static positioning blocks (2) and the adaptive dynamic positioning components (3) together constrain the copper busbar (4). The adaptive dynamic positioning component (3) includes a base (32) embedded and fixed inside the lower mold base (1). The top of the base (32) is fixedly connected to an L-shaped fixing block (31) and a dynamic positioning block (33) is movably set. The L-shaped fixing block (31) and the dynamic positioning block (33) are connected together by a spring (34).

2. The active positioning device of the new energy bending die according to claim 1, characterized in that, The lower mold base (1) has a clearance groove (11) on its edge to prevent the copper busbar (4) from interfering with the lower mold base (1) due to flipping during the bending process.

3. The active positioning device of the new energy bending die according to claim 1, characterized in that, The top of the forming block (5) has a copper busbar forming groove (51), which is "V" shaped, and the bottom of the bending punch (6) is adapted to the copper busbar forming groove (51).

4. The active positioning device of the new energy bending die according to claim 1, characterized in that, The base (32) has a limiting groove (321) inside. The bottom end of the dynamic positioning block (33) is connected to a limiting protrusion (331). The limiting protrusion (331) is inside the limiting groove (321), and the length of the limiting groove (321) is greater than the length of the limiting protrusion (331) to meet the travel of the dynamic positioning block (33).

5. The active positioning device of the new energy bending die according to claim 1, characterized in that, A limiting hole (332) is provided on one side of the dynamic positioning block (33), and the spring (34) is located inside the limiting hole (332), with both ends abutting against the L-shaped fixing block (31) and the dynamic positioning block (33).

6. The active positioning device of the new energy bending die according to claim 1, characterized in that, Both the static positioning block (2) and the dynamic positioning block (33) have transition slopes (333) at their ends facing the copper busbar (4).

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