Heavy copper-aluminum bar folding structure

Abstract

The utility model belongs to the technical field of bending machine, concretely relates to a heavy -duty copper aluminium row bending structure, including support seat and cutter mould, the bottom of cutter mould is located the top of support seat, and cutter mould is used for external connection punch press, the top of support seat is equipped with the material discharging groove for placing work piece, still include rolling subassembly, rolling subassembly includes rotating shaft and fixed shaft, two fixed shafts are oppositely arranged at both ends of material discharging groove, and both ends of fixed shaft are fixed on the inner wall of material discharging groove, rotating shaft rotatablely is set on fixed shaft, bending groove, bending groove is set up at the bottom of material discharging groove, its purpose lies in, through the setting of rolling subassembly, can reduce copper aluminium row both ends and the stress area of bending groove, so that copper aluminium row can be more smoothly pressed into bending groove after receiving the pressing of cutter mould, thereby reach more laborsaving, reduce the effect of friction resistance.

Description

Technical Field

[0001] This utility model belongs to the field of bending machine technology, specifically relating to a heavy-duty copper-aluminum bar bending structure. Background Technology

[0002] A bending machine is a machine that can bend thin plates. It is an important piece of equipment in the sheet metal industry for bending and forming workpieces. Its function is to press heavy copper and aluminum strips into parts of various shapes according to process requirements.

[0003] In existing technology, when bending machines press heavy copper and aluminum busbars, the busbars to be processed are first placed on a bending groove, and then the die moves downward to press the busbars into the groove, causing them to bend. However, during this process, frictional resistance is generated between the two ends of the heavy copper and aluminum busbars and the inner walls of the bending groove. This leads to uneven stress distribution during bending, affecting the accuracy and quality of the bending. Furthermore, due to the frictional resistance, the die requires greater force to move downward, which not only increases the energy consumption of the equipment but may also shorten its lifespan. Utility Model Content

[0004] In view of this, the present invention provides a heavy-duty copper-aluminum busbar bending structure, the purpose of which is to reduce the friction surface between the copper-aluminum busbar and the bending groove when under stress, improve the smoothness during bending, thereby reducing resistance and equipment energy consumption.

[0005] The technical solution adopted in this utility model is as follows:

[0006] A heavy-duty copper-aluminum strip bending structure includes a support base and a die. The bottom of the die is located above the support base and is used to connect to an external stamping machine. The top of the support base is provided with a feeding groove for placing workpieces. The structure also includes:

[0007] A rolling assembly, comprising a rotating shaft and a fixed shaft, wherein two fixed shafts are disposed opposite to each other at both ends of the feeding trough, and both ends of the fixed shafts are fixed to the inner wall of the feeding trough, and the rotating shaft is rotatably sleeved on the fixed shaft;

[0008] A bending groove is formed at the bottom of the feeding groove and is located below the die.

[0009] The two ends of the bending groove are distributed parallel to each other below the rotating shaft.

[0010] As a preferred technical solution, it also includes ratchet blocks, a plurality of ratchet blocks protruding from the inner sidewalls at both ends of the rotating shaft, and the ratchet blocks fitting against the outer sidewall of the fixed shaft;

[0011] A limiting rod is inclinedly disposed on the outer side wall at both ends of the fixed shaft, and a spring is provided between the limiting rod and the outer side wall of the fixed shaft;

[0012] The side of the limiting rod away from the fixed axis is in contact with the ratchet block, and the ratchet block and the limiting rod are used to control the direction of rotation of the rotating shaft.

[0013] Furthermore, the limiting rod includes an upward-curving end and a downward-curving end, wherein the spring is disposed at the bottom of the upward-curving end, and the downward-curving end is inclined in a direction away from the upward-curving end.

[0014] Furthermore, the ratchet block has a right-angled triangular structure, wherein one of the right-angled sides of the ratchet block is located on the inner side wall of the rotating shaft, the hypotenuse of the ratchet block is in contact with the limiting rod, and the other right-angled side of the ratchet block is located above the upturned end of the limiting rod.

[0015] Furthermore, it also includes a groove formed on the outer side wall of the fixed shaft, wherein the groove is used to install the limiting rod and the spring.

[0016] Furthermore, the upturned end protrudes from the top of the groove.

[0017] Furthermore, a rubber pad is fitted on the outer wall of the rotating shaft.

[0018] Furthermore, the inner wall of the bending groove facing the rotating shaft is inclined.

[0019] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0020] By setting up the rolling component, the force-bearing area between the two ends of the copper-aluminum strip and the bending groove can be reduced, so that the copper-aluminum strip can be pressed into the bending groove more smoothly after being pressed by the die, thereby achieving the effect of saving more effort and reducing frictional resistance. Attached Figure Description

[0021] This utility model will be described by way of example and with reference to the accompanying drawings, wherein:

[0022] Figure 1 This is a schematic diagram of a heavy-duty copper-aluminum strip bending structure provided by this utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the support base provided by this utility model;

[0024] Figure 3 This is a schematic diagram of the structure of the rolling component provided by this utility model.

[0025] Support base-1; Die-2; Feeding groove-3; Rolling assembly-4; Bending groove-5; Rotating shaft-6; Fixed shaft-7; Ratchet-8; Limiting rod-9; Spring-10. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Example 1

[0028] In existing technology, during the pressing of heavy copper and aluminum plates by a bending machine, the heavy copper and aluminum strip to be processed is first placed on a bending groove. Then, the die descends to press the heavy copper and aluminum strip into the bending groove, causing it to bend. However, during this process, frictional resistance is generated between the two ends of the heavy copper and aluminum strip and the inner walls of the bending groove. This leads to uneven stress distribution during bending, affecting the accuracy and quality of the bending. Furthermore, due to the frictional resistance, greater force is required when the die descends, which not only increases the energy consumption of the equipment but may also shorten its service life.

[0029] Therefore, in order to solve the above problems and improve the bending accuracy of heavy-duty copper-aluminum busbars and extend the service life of equipment, this utility model discloses a heavy-duty copper-aluminum busbar bending structure, see reference. Figure 1 and Figure 2 The assembly includes a support base 1 and a die 2. The bottom of the die 2 is located above the support base 1, and the die 2 is used to connect to an external stamping machine. The top of the support base 1 is provided with a feeding groove 3 for placing workpieces. Specifically, it also includes a rolling assembly 4, which includes a rotating shaft 6 and a fixed shaft 7. The two fixed shafts 7 are arranged opposite to each other at both ends of the feeding groove 3, and the two ends of the fixed shafts 7 are fixed to the inner wall of the feeding groove 3. The rotating shaft 6 is rotatably sleeved on the fixed shaft 7. A bending groove 5 is formed at the bottom of the feeding groove 3. The bending grooves 5 are distributed parallel to each other below the die 2, and the two ends of the bending grooves 5 are located below the rotating shaft 6.

[0030] In this embodiment, by setting the rolling component 4, the force-bearing area between the two ends of the copper-aluminum strip and the bending groove 5 can be reduced, so that the copper-aluminum strip can be pressed into the bending groove 5 more smoothly after being pressed by the die 2, thereby achieving the effect of saving more effort and reducing frictional resistance.

[0031] For example, in the initial state, the copper-aluminum strip is placed in the feeding trough 3. At this time, the bottom of the copper-aluminum strip covers the top of the bending groove 5, and both ends of the copper-aluminum strip are in contact with the rotating shaft 6. When the copper-aluminum strip is to be bent, the die 2 can be pressed down to the top of the copper-aluminum strip by the drive of the press, pressing the copper-aluminum strip into the bending groove 5. At this time, the rotating shaft 6 will rotate in the direction of the bending groove 5 on the fixed shaft 7 as the copper-aluminum strip deforms, thereby reducing the force surface and frictional resistance between the two ends of the copper-aluminum strip and the bending groove 5, so as to improve the bending accuracy of the copper-aluminum strip and reduce the energy consumption of the equipment.

[0032] Furthermore, in order to improve the stability when the copper-aluminum busbar contacts the rotating shaft 6, a rubber pad is provided on the outer wall of the rotating shaft 6. The rubber pad helps to prevent the copper-aluminum busbar from slipping on the surface of the rotating shaft 6, and also avoids friction between the copper-aluminum busbar and the rotating shaft 6 when bending, thus reducing the probability of wear.

[0033] In one embodiment, the inner wall of the bending groove 5 facing the rotating shaft 6 is inclined. This arrangement better guides the copper-aluminum busbar into the bending groove 5 during bending and reduces stress concentration caused by bending. Specifically, the inclined inner wall allows the copper-aluminum busbar to gradually bend along the inclined direction when subjected to the pressure of the die 2, thereby achieving a smoother and more uniform bending effect. Furthermore, this design helps to distribute the pressure during the bending process, preventing the copper-aluminum busbar from bearing excessive force at any one point, thus extending the service life of the equipment and improving the stability of the bending operation.

[0034] It is worth mentioning that since the rotating shaft 6 can rotate with the deformation of the copper and aluminum busbar, the rotating shaft 6 can work with the continuously pressing die 2 to evenly roll the bottom of the copper and aluminum busbar during the rotation process. This avoids unevenness between the bent part and the flat part after the copper and aluminum busbar is bent, thereby improving the flatness of the copper and aluminum busbar surface after bending.

[0035] Example 2

[0036] Based on Example 1, in order to further improve the stability of the aluminum plate in the feeding trough 3, refer to... Figure 3 The present invention also includes a limiting component for limiting the rotation direction of the rotating shaft 6. Specifically, it includes a ratchet block 8, a plurality of ratchet blocks 8 protruding from the inner sidewalls at both ends of the rotating shaft 6, the ratchet blocks 8 being in contact with the outer sidewall of the fixed shaft 7, and a limiting rod 9, the limiting rod 9 being obliquely disposed on the outer sidewalls at both ends of the fixed shaft 7, and a spring 10 being provided between the limiting rod 9 and the outer sidewall of the fixed shaft 7. The side of the limiting rod 9 away from the fixed shaft 7 is in contact with the ratchet block 8. The ratchet block 8 and the limiting rod 9 are used to control the rotation direction of the rotating shaft 6.

[0037] In this embodiment, the ratchet block 8 and the limiting rod 9 are configured to allow the rotating shaft 6 to rotate only in the direction of the bending groove 5, thereby preventing the copper-aluminum busbar from sliding in the discharge trough 3. Specifically, when the rotating shaft 6 rotates in the direction of the bending groove 5, the ratchet block 8 continuously presses against the limiting rod 9, which retracts under the action of the spring 10, allowing the ratchet block 8 to pass smoothly. Therefore, the rotating shaft 6 can rotate smoothly. However, when the rotating shaft 6 wants to rotate away from the bending groove 5, the bottom of the ratchet block 8 will engage with the top of the limiting rod 9, preventing the ratchet block 8 from passing smoothly and thus restricting the rotation of the rotating shaft 8.

[0038] It should be noted that the limiting rod 9 includes an upward-curved end, wherein the spring 10 is disposed at the bottom of the upward-curved end, and the ratchet block 8 has a right-angled triangular structure, wherein one right-angled side of the ratchet block 8 is disposed on the inner sidewall of the rotating shaft 6, the hypotenuse of the ratchet block 8 is in contact with the limiting rod 9, and the other right-angled side of the ratchet block 8 is distributed parallel to the top of the upward-curved end of the limiting rod 9. With the above structure, when the rotating shaft 6 rotates away from the bending groove 5, since the upward-curved end protrudes from the top of the groove, the right-angled side at the bottom of the ratchet block 8 will abut against the top of the upward-curved end of the limiting rod 9, preventing the rotating shaft 6 from rotating in the current direction. When the rotating shaft 6 rotates towards the bending groove 5, the hypotenuse of the ratchet block 8 will press against the limiting rod 9, so that the upward-curved end of the limiting rod 9 will be pressed into the groove, thereby allowing the ratchet block 8 to pass smoothly through the limiting rod 9, and allowing the rotating shaft 6 to rotate smoothly.

[0039] In addition, the limiting rod 9 has an arc on the side facing the ratchet block 8. This design makes it difficult for the lower end to pop out of the groove when the upturned end is pressed into the groove, which helps to avoid the lower end blocking the ratchet block 8.

[0040] Meanwhile, the groove is formed on the outer side wall of the fixed shaft 7. The groove is used to install the limiting rod 9 and the spring 10. The groove can provide the limiting rod 9 with a telescopic space. When the upturned end of the limiting rod 9 is squeezed by the ratchet block 8, the upturned end can retract into the groove under the action of the spring 10, thereby relieving the obstruction of the ratchet block 8.

[0041] In summary, based on Embodiments 1 and 2, the working steps of this heavy-duty copper-aluminum busbar bending structure are as follows: First, place the copper-aluminum busbar in the feeding trough 3, ensuring that its bottom covers the top of the bending trough 5 and that both ends are in contact with the rotating shaft 6.

[0042] Next, the stamping machine is started, and the die 2 is pressed down to the top of the copper-aluminum busbar to begin bending the copper-aluminum busbar.

[0043] During the bending process, the rotating shaft 6 will rotate with the deformation of the copper-aluminum busbar, reducing the frictional resistance between the two ends of the copper-aluminum busbar and the bending groove 5. At the same time, during the bending process of the copper-aluminum busbar, the limiting component ensures that the rotating shaft 6 can only rotate in the direction of the bending groove 5, preventing the copper-aluminum busbar from sliding and ensuring bending accuracy.

[0044] Finally, with the assistance of the rotating shaft 6, the copper-aluminum busbar completes the bending process in a smoother and more uniform manner, improving the stability and efficiency of the bending operation.

[0045] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0046] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A heavy-duty copper-aluminum strip bending structure, comprising a support base (1) and a die (2), wherein the bottom of the die (2) is located above the support base (1), and the die (2) is used to connect to an external stamping machine, and the top of the support base (1) is provided with a feeding groove (3) for placing workpieces, characterized in that, Also includes: The rolling assembly (4) includes a rotating shaft (6) and a fixed shaft (7). The two fixed shafts (7) are arranged opposite to each other at both ends of the feeding trough (3), and the two ends of the fixed shafts (7) are fixed on the inner wall of the feeding trough (3). The rotating shaft (6) is rotatably sleeved on the fixed shaft (7). Bending groove (5), the bending groove (5) is opened at the bottom of the feeding groove (3), and the bending groove (5) is distributed in parallel below the die (2); The two ends of the bending groove (5) are located below the rotating shaft (6); The heavy-duty copper-aluminum busbar bending structure also includes: A number of the ratchet blocks (8) are protruding on the inner sidewalls at both ends of the rotating shaft (6), and the ratchet blocks (8) are in contact with the outer sidewall of the fixed shaft (7); A limiting rod (9) is inclinedly disposed on the outer side wall at both ends of the fixed shaft (7), and a spring (10) is provided between the limiting rod (9) and the outer side wall of the fixed shaft (7). The side of the limiting rod (9) away from the fixed shaft (7) is in contact with the ratchet block (8), and the ratchet block (8) and the limiting rod (9) are used to control the direction of rotation of the rotating shaft (6); The limiting rod (9) includes an upward end and a downward end, wherein the spring (10) is located at the bottom of the upward end and the downward end is inclined away from the upward end.

2. The heavy-duty copper-aluminum strip bending structure according to claim 1, characterized in that, The ratchet block (8) has a right-angled triangular structure. One of the right-angled sides of the ratchet block (8) is located on the inner side wall of the rotating shaft (6). The hypotenuse of the ratchet block (8) is in contact with the limiting rod (9). The other right-angled side of the ratchet block (8) is located above the upturned end of the limiting rod (9).

3. The heavy-duty copper-aluminum strip bending structure according to claim 1, characterized in that, Also includes: The groove is formed on the outer side wall of the fixed shaft (7), wherein the groove is used to install the limiting rod (9) and the spring (10).

4. The heavy-duty copper-aluminum strip bending structure according to claim 1, characterized in that, The upturned end protrudes from the top of the groove.

5. The heavy-duty copper-aluminum strip bending structure according to claim 1, characterized in that, The outer wall of the rotating shaft (6) is fitted with a rubber pad.

6. The heavy-duty copper-aluminum strip bending structure according to claim 1, characterized in that, The inner wall of the bending groove (5) facing the rotating shaft (6) is inclined.

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