Bending equipment and machining method

Abstract

The invention discloses bending equipment and a machining method, and belongs to the technical field of copper bar machining. The bending equipment comprises a height adjusting device, a first clamping device and a second clamping device, at least one clamping device is installed on the height adjusting device, the first clamping device and the second clamping device are used for clamping the two ends of the bent portion of the copper bar respectively, and the height adjusting device is used for adjusting the height difference when the different clamping devices clamp the copper bar. The height difference between the first clamping device and the second clamping device is adjusted through the height adjusting device when the copper bar is clamped, so that the bending angle of the copper bar can be adjusted, the problem that the bending angle of a mold in the prior art is fixed is solved, and the structure change difficulty and cost of bending equipment when the bending angle of the copper bar is changed are reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of copper bar processing, and specifically relates to a bending device and a processing method. Background Art

[0002] In the production process of copper bars, a mold is required to bend the copper bars. However, in the prior art, the mold for bending copper bars is a fixed structure, which has the problem that it can only bend the copper bars at a fixed angle, and when the product changes, the corresponding mold needs to be replaced for processing. Summary of the Invention

[0003] Object of the Invention: To provide a bending device that can adjust the bending angle by adjusting the height difference between two clamping devices, solving the problem of fixed bending angle of the mold in the prior art.

[0004] The technical solution of the present invention is as follows: In a first aspect, a bending device includes: a height adjustment device, a first clamping device, and a second clamping device.

[0005] At least one of the clamping devices is installed on the height adjustment device.

[0006] The first clamping device and the second clamping device are used to respectively clamp both ends of the bending part of the copper bar.

[0007] The height adjustment device is used to adjust the height difference when different clamping devices clamp the copper bar.

[0008] In a further embodiment of the first aspect, the bending device further includes: a third clamping device.

[0009] The first clamping device, the second clamping device, and the third clamping device are arranged in sequence. At least one of the first clamping device, the second clamping device, and the third clamping device is installed on the height adjustment device, enabling the bending device to have both the function of performing a "Z"-shaped bend on the copper bar with two clamping devices using two sets of molds for each bend, and the function of performing an "Ω"-shaped bend on the copper bar with three clamping devices for each bend. When performing an "Ω"-shaped bend on the copper bar, the three clamping devices can reduce the number of bends compared to the two clamping devices, improving the versatility of the bending device.

[0010] In a further embodiment of the first aspect, the second clamping device is installed on the height adjustment device, and the two bending angles of the copper bar can be adjusted by the adjustable height of the middle second clamping device.

[0011] In a further embodiment of the first aspect, the clamping device includes: a fixed frame, a clamping power source, and a mold.

[0012] The clamping power source is installed on the fixed frame, and the mold is installed on the clamping power source. The clamping power source is used to drive the mold to clamp the copper bar.

[0013] The clamping power source includes: two hydraulic cylinders. A plurality of clamping devices are distributed along the width direction of the clamping power source. When the clamping power source of two hydraulic cylinders and the clamping power source of one hydraulic cylinder have the same output pressure, the width dimension of the clamping power source of two hydraulic cylinders is smaller than the width dimension of the clamping power source of one hydraulic cylinder. Enabling a plurality of clamping devices to be distributed along the width direction of the clamping power source can greatly reduce the spacing of the mold, making the structure of the bending equipment more compact and enabling the bending of copper bars with smaller spacings.

[0014] In a further embodiment of the first aspect, the bending equipment further includes: a spacing adjustment device.

[0015] At least one of the clamping devices is installed on the spacing adjustment device.

[0016] The spacing adjustment device is used to adjust the spacing between the parts of different clamping devices that clamp the copper bar. By adjusting the spacing between the parts of different clamping devices that clamp the copper bar, the length of the bent part of the copper bar can be adjusted, solving the problem of the fixed bending position of the mold, and further reducing the difficulty and cost of changing the structure of the bending equipment when the length of the bent part of the copper bar changes.

[0017] In a further embodiment of the first aspect, the same clamping device is installed on the height adjustment device or the spacing adjustment device, which can avoid the overly complex local structure and excessive pressure bearing of the bending equipment, making the bending equipment convenient for adjustment, commissioning, maintenance and other operations, and improving the working stability of the bending equipment.

[0018] In a further embodiment of the first aspect, the bending equipment further includes: an angle compensation device.

[0019] At least one of the clamping devices is equipped with an angle compensation device. The angle compensation device is used to make the angle of the part of the clamping device that clamps the copper bar adjustable. It can set the bending angle compensation amount according to needs on the basis of the original designed bending angle, reduce the influence of material springback, reduce the holding pressure time and improve the processing efficiency. The difficulty and cost of adjusting the bending angle compensation amount can be reduced through the angle compensation device.

[0020] In a further embodiment of the first aspect, the angle compensation device includes: an angle compensation power source, an angle compensation linear displacement mechanism and an angle compensation rotation mechanism.

[0021] The angle compensation power source is installed on the fixed frame of the clamping device. The angle compensation rotation mechanism is installed on the mold of the clamping device. The angle compensation linear displacement mechanism connects the angle compensation power source and the angle compensation rotation mechanism.

[0022] The mold equipped with the angle compensation device is rotatably installed on the clamping power source.

[0023] When the angle compensation power source drives the angle compensation linear displacement mechanism to move, the angle compensation rotation mechanism drives the mold to rotate. By driving the mold to rotate through the linear motion mechanism, the force required for the overall rotation of the clamping device is reduced, the stability of the bending equipment is improved, and the cost of the bending equipment is also reduced.

[0024] In a further embodiment of the first aspect, the angle compensation rotation mechanism includes: a slider, an eccentric shaft, a connecting member, and a rotating shaft.

[0025] The slider is installed on the eccentric shaft, the eccentric shaft is installed on the connecting member, and the connecting member and the rotating shaft are installed on the mold of the clamping device.

[0026] The slider is connected to the fixed frame of the angle compensation linear displacement mechanism and the clamping device, and the rotating shaft is connected to the fixed frame of the clamping device.

[0027] The slider is provided with a receiving cavity, the eccentric shaft is inserted into the receiving cavity, and the eccentric shaft is spaced a predetermined distance from the upper and lower sides of the receiving cavity.

[0028] When the angle compensation power source drives the slider to move through the angle compensation linear displacement mechanism, the slider drives the eccentric shaft, the connecting member, and the mold to rotate around the rotating shaft. By setting the eccentric shaft to be spaced a predetermined distance from the upper and lower sides of the receiving cavity, when the clamping power source of the clamping device drives the mold to move, the force transmitted to the slider can be reduced, the service life of the angle compensation linear displacement mechanism and the angle compensation rotation mechanism can be improved, and thus the service life of the bending equipment can be improved.

[0029] In a second aspect, a processing method based on the bending equipment described in the first aspect includes: S100. According to the angle to be bent at the bending part of the copper bar, use the height adjustment device to adjust the height of at least one clamping device so that the parts of different clamping devices for clamping the copper bar reach a predetermined height difference.

[0030] S200. First, use one clamping device to clamp the copper bar to position the copper bar, and then use other clamping devices to clamp the copper bar so that the clamped parts of the copper bar reach a predetermined height difference, and the copper bar is bent.

[0031] The beneficial effects of the present invention are as follows: The present application adjusts the height of the first clamping device and / or the second clamping device through the height adjustment device, thereby realizing the adjustment of the height difference between the first clamping device and the second clamping device when clamping the copper bar, causing a height difference at both ends of the bent part of the copper bar, and then bending the copper bar between the two molds. By adjusting the height difference between the first clamping device and the second clamping device when clamping the copper bar through the height adjustment device, the bending angle of the copper bar can be adjusted, solving the problem of the fixed bending angle of the mold in the prior art and reducing the difficulty and cost of changing the structure of the bending equipment when the bending angle of the copper bar changes. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is a top - view structural schematic diagram of an embodiment of two clamping devices of the present invention.

[0033] Figure 2 is a bottom - view structural schematic diagram of an embodiment of two clamping devices of the present invention.

[0034] Figure 3 is a front - view structural schematic diagram of an embodiment of three clamping devices of the present invention.

[0035] Figure 4 is a schematic diagram of an embodiment of the cooperation between the height adjustment device and the clamping device of the present invention.

[0036] Figure 5 is a schematic diagram of an embodiment of the cooperation between the spacing adjustment device and the clamping device of the present invention.

[0037] Figure 6 is a schematic diagram of an embodiment of the cooperation between the angle compensation device and the clamping device of the present invention.

[0038] Figure 7 is a cross - sectional schematic diagram of the angle compensation device of the present invention.

[0039] Figure 8 is a schematic diagram of the cooperation between the rotating shaft of the angle compensation device and the mold of the present invention.

[0040] Figure 9 is a principle sketch of the cooperation between two clamping devices of the present invention.

[0041] The reference numerals shown in the figures are: height adjustment device 1, height hydraulic cylinder 11, height guiding mechanism 12, first clamping device 2, second clamping device 3, fixed frame 31, clamping power source 32, mold 33, fixed mold 331, movable mold 332, spacing adjustment device 4, spacing lead screw mechanism 41, spacing power source 42, spacing guiding mechanism 43, third clamping device 5, angle compensation device 6, angle compensation power source 61, angle compensation linear displacement mechanism 62, angle compensation rotating mechanism 63, slider 631, eccentric shaft 632, connecting member 633, rotating shaft 634. Detailed implementation manners

[0042] In the following description, numerous specific details are given to provide a more thorough understanding of the present invention. However, it is obvious to those skilled in the art that the present invention can be implemented without one or more of these details. In other instances, some well-known technical features are not described to avoid confusion with the present invention.

[0043] The present invention discloses a bending device and a processing method. By adjusting the height difference between two clamping devices, the bending angle can be adjusted, solving the problem of the fixed bending angle of the die in the prior art.

[0044] In a first embodiment of the first aspect, the bending device includes: a frame, a control device, a height adjustment device 1, a first clamping device 2, and a second clamping device 3.

[0045] At least one clamping device is installed on the height adjustment device 1, the height adjustment device 1 is installed on the frame, the clamping device not installed on the height adjustment device 1 is installed on the frame, and the power sources and sensors of the height adjustment device 1, the first clamping device 2, and the second clamping device 3 are connected to a control device such as a PLC, and the control device controls them to work.

[0046] The first clamping device 2 and the second clamping device 3 are used to respectively clamp both ends of the bending part of the copper bar.

[0047] The height adjustment device 1 is used to adjust the height difference when different clamping devices clamp the copper bar.

[0048] When the angle to be bent increases, the height difference when the clamping device clamps the copper bar increases.

[0049] When the angle to be bent decreases, the height difference when the clamping device clamps the copper bar decreases.

[0050] In a further embodiment, the bending device further includes: a third clamping device 5.

[0051] The first clamping device 2, the second clamping device 3, and the third clamping device 5 are arranged in sequence, and at least one of the first clamping device 2, the second clamping device 3, and the third clamping device 5 is installed on the height adjustment device 1.

[0052] Among them, the second clamping device 3 is installed on the height adjustment device 1.

[0053] Regarding the clamping device, the clamping device includes: a fixed frame 31, a clamping power source 32, and a die 33.

[0054] The clamping power source 32 is installed on the fixed frame 31, and the mold 33 is installed on the clamping power source 32. The clamping power source 32 is used to drive the mold 33 to clamp the copper bar.

[0055] The clamping power source 32 includes: two hydraulic cylinders, and a plurality of clamping devices are arranged along the width direction of the clamping power source 32.

[0056] The mold 33 equipped with the angle compensation device 6 includes: a moving mold 332, a mold 33 guiding mechanism, and a fixed mold 331. The moving mold 332 is connected to the mold 33 guiding mechanism, and the mold 33 guiding mechanism is connected to the fixed mold 331. The moving mold 332 is installed on the clamping power source 32, and the clamping power source 32 can drive the moving mold 332 to move towards the fixed mold 331 along the mold 33 guiding mechanism. The mold 33 guiding mechanism can be a combination of a guiding shaft and a linear bearing or a guide rail slider 631 mechanism. The fixed mold 331 of the mold 33 not equipped with the angle compensation device 6 is installed on the fixed frame 31. The fixed mold 331 of the mold 33 equipped with the angle compensation device 6 is connected to the connecting member 633 and the rotating shaft 634 of the angle compensation device 6. The moving mold 332 is rotatably installed on the clamping power source 32. When the angle compensation device 6 drives the fixed mold 331 to rotate, the fixed mold 331 drives the mold 332 guiding mechanism and the moving mold 332 to rotate. As Figure 8 shown, when the mold 33 guiding mechanism is a guide rail mechanism, the guide rail mechanism is connected to the moving mold 332, the fixed mold 331, and the connecting member 633, so that the angle compensation device 6 drives the moving mold 332, the fixed mold 331, and the guide rail slider 631 mechanism to rotate together, improving the integrity of the mold 33 during rotation and further improving the working stability of the mold 33.

[0057] Regarding the height adjustment device 1, the height adjustment device 1 includes a height hydraulic cylinder 11 installed on the frame and vertically arranged and a height guiding mechanism 12. The height guiding mechanism 12 can be a combination of a guiding shaft and a linear bearing or a guide rail mechanism. The fixed frame 31 of the clamping device is installed on the height hydraulic cylinder 11 and the height guiding mechanism 12 of the height adjustment device 1; in other embodiments, the height adjustment device 1 can also include: a motor, a lead screw mechanism installed on the frame and vertically arranged, and a guiding mechanism. The motor is connected to the lead screw mechanism, and the fixed frame 31 of the clamping device is installed on the electric lead screw mechanism and the guiding mechanism to realize the height adjustment of the clamping device by an electric method.

[0058] In the second embodiment of the first aspect, a spacing adjustment device 4 is added on the basis of the first embodiment.

[0059] The spacing adjustment device 4 is installed on the frame, and at least one clamping device is installed on the spacing adjustment device 4. In this embodiment, the clamping device not installed on the height adjustment device 1 or the spacing adjustment device 4 is installed on the frame.

[0060] The spacing adjustment device 4 includes a spacing lead screw mechanism 41, a spacing power source 42, and a spacing guiding mechanism 43. Among them, the spacing lead screw mechanism 41 is connected to the spacing power source 42, and the spacing guiding mechanism 43 and the spacing lead screw mechanism 41 are installed on the frame. The clamping device is installed on the spacing guiding mechanism 43 and the spacing lead screw mechanism 41. As Figure 5 shown, the spacing guiding mechanism 43 is a dovetail groove guiding mechanism. The spacing power source 42 of the spacing adjustment device 4 drives the clamping device to move along the arrangement direction of the plurality of clamping devices through the spacing lead screw mechanism 41, so that the spacing adjustment device 4 is used to adjust the spacing between the parts of the copper busbar clamped by different clamping devices. The way of spacing adjustment is not limited to this.

[0061] In this embodiment, the same clamping device is installed on the height adjustment device 1 or the spacing adjustment device 4.

[0062] As Figure 3 shown, the first clamping device 2 and the third clamping device 5 are installed on the spacing adjustment device 4, and the second clamping device 3 is installed on the height adjustment device 1.

[0063] Regarding the spacing adjustment device 4, the spacing adjustment device 4 includes: a motor, a lead screw mechanism and a guiding mechanism installed on the frame and extending along the distribution direction of the clamping devices. The motor is connected to the lead screw mechanism. The guiding mechanism can be a guiding shaft and a linear bearing or a guide rail mechanism. The fixed frame 31 of the clamping device is installed on the lead screw mechanism and the guiding mechanism of the spacing adjustment device 4. In other embodiments, the spacing adjustment device 4 can also include: a hydraulic cylinder and a guiding mechanism installed on the frame and extending along the distribution direction of the clamping devices. The fixed frame 31 of the clamping device is installed on the hydraulic cylinder and the guiding mechanism of the spacing adjustment device 4.

[0064] In the second embodiment of the first aspect, an angle compensation device 6 is added on the basis of the first or second embodiment.

[0065] At least one clamping device is equipped with an angle compensation device 6. The angle compensation device 6 is used to make the angle of the part of the clamping device clamping the copper busbar adjustable. The angle compensation device 6 can drive the whole clamping device to rotate, or the angle compensation device 6 can drive the mold 33 of the clamping device to rotate.

[0066] Regarding the angle compensation device 6, the angle compensation device 6 includes: an angle compensation power source 61, an angle compensation linear displacement mechanism 62, and an angle compensation rotation mechanism 63.

[0067] The angle compensation power source 61 is installed on the fixed frame 31 of the clamping device, the angle compensation rotation mechanism 63 is installed on the mold 33 of the clamping device, and the angle compensation linear displacement mechanism 62 connects the angle compensation power source 61 and the angle compensation rotation mechanism 63.

[0068] The mold 33 equipped with the angle compensation device 6 is rotatably installed on the clamping power source 32, such as Figure 4 As shown, the mold 33 is rotatably installed on the clamping power source 32 through a hinged structure, and the angle compensation device 6 drives the mold 33 of the clamping device to rotate.

[0069] When the angle compensation power source 61 drives the angle compensation linear displacement mechanism 62 to move, the angle compensation rotation mechanism 63 drives the mold 332 and the mold 33 to rotate.

[0070] Regarding the angle compensation rotation mechanism 63, the angle compensation rotation mechanism 63 includes: a slider 631, an eccentric shaft 632, a connecting member 633, and a rotating shaft 634.

[0071] The slider 631 is installed on the eccentric shaft 632, the eccentric shaft 632 is installed on the connecting member 633, and the connecting member 633 and the rotating shaft 634 are installed on the mold 33 of the clamping device.

[0072] The slider 631 is connected to the angle compensation linear displacement mechanism 62 and the fixed frame 31 of the clamping device, and the rotating shaft 634 is connected to the fixed frame 31 of the clamping device. In this embodiment, the fixed frame 31 of the clamping device is provided with a chute, and the slider 631 is installed in the chute. The slider 631 can move along the extension direction of the chute. In other embodiments, the angle compensation linear displacement mechanism 62 can also include a guide rail, and the guide rail is provided on the fixed frame 31 so that the slider 631 cooperates with the guide rail, and the slider 631 can move along the extension direction of the guide rail, which is not limited thereto.

[0073] The slider 631 is provided with a receiving cavity, and the eccentric shaft 632 is inserted into the receiving cavity. The eccentric shaft 632 is arranged at a predetermined interval from the upper and lower sides of the receiving cavity. Here, the upper and lower sides of the receiving cavity refer to the two side walls in the height direction of the receiving cavity, and the left and right sides of the receiving cavity refer to the two side walls of the receiving cavity through which the moving direction of the angle compensation linear displacement mechanism 62 passes. The eccentric shaft 632 includes a circular shaft portion and Figure 7 the square shaft portion as shown. The circular shaft portion is connected to the connecting member 633, the square shaft portion is inserted into the receiving cavity of the slider 631, and the square shaft portion is arranged at a predetermined interval from the upper and lower sides of the receiving cavity. The square shaft portion and the left and right sides of the receiving cavity are flat side walls, and the square shaft portion and the left and right sides of the receiving cavity are dimensionally clearance-fitted. During operation, the square shaft portion is in contact with one of the left and right sides of the receiving cavity, so that the slider 631 drives the eccentric shaft 632 to move. By the cooperation of the square shaft portion and the flat side walls of the left and right sides of the receiving cavity, it can be a surface connection when the slider 631 drives the eccentric shaft 632 to move, improving the stability of the slider 631 driving the eccentric shaft 632 to move.

[0074] When the angle compensation power source 61 drives the slider 631 to move through the angle compensation linear displacement mechanism 62, the slider 631 drives the eccentric shaft 632, the connecting member 633, and the mold 33 to rotate around the rotating shaft 634.

[0075] In this embodiment, two sets of angle compensation linear displacement mechanisms 62 and angle compensation rotary mechanisms 63 are arranged on both sides of the mold 33. The angle compensation power source 61 includes: an angle compensation mounting frame, a rotary motor, and a synchronous belt transmission mechanism. The angle compensation mounting frame is mounted on the fixed frame 31 of the clamping device. The synchronous belt transmission mechanism and the rotary motor are mounted on the angle compensation mounting frame. The synchronous belt transmission mechanism is connected to the rotary motor. The two sets of angle compensation linear displacement mechanisms 62 are connected to the synchronous belt transmission mechanism, enabling a rotary motor to drive the two angle compensation linear displacement mechanisms 62 to move through the synchronous belt transmission mechanism, and capable of driving the mold 332 of the mold 33 to rotate simultaneously on both sides of the mold 33, improving the synchronization of the overall rotation of the mold 33 and the stability when stopping.

[0076] The angle compensation linear displacement mechanism 62 includes: a lead screw mechanism. The nut of the lead screw mechanism is mounted on the synchronous belt transmission mechanism. One end of the lead screw of the lead screw mechanism is engaged with the nut, and the other end is engaged with the slider 631. Through the self-locking function of the lead screw mechanism, the rotary mechanism can cooperate to lock the linear displacement mechanism when not working, improving the working stability of the bending equipment.

[0077] In other embodiments, two sets of angle compensation power sources 61 can also be used to drive the two sets of angle compensation linear displacement mechanisms 62 to move respectively. At this time, the angle compensation power source 61 can be a rotary power source such as a motor, and the angle compensation linear displacement mechanism 62 can be a transmission mechanism such as a lead screw mechanism or a rack and pinion mechanism; it is also possible that the angle compensation power source 61 and the angle compensation linear displacement mechanism 62 are linear power sources such as hydraulic cylinders, pneumatic cylinders, or electric cylinders.

[0078] Second, the processing method of the bending equipment based on the first aspect includes: S100. According to the angle to be bent at the bending part of the copper bar, use the height adjustment device 1 to adjust the height of at least one clamping device so that the parts of different clamping devices for clamping the copper bar reach a predetermined height difference.

[0079] According to the length to be bent at the bending part of the copper bar, use the spacing adjustment device 4 to adjust the spacing between the parts of different clamping devices for clamping the copper bar along the distribution direction of the clamping devices.

[0080] According to the compensation amount of the angle to be bent at the bending part of the copper bar, use the angle compensation device 6 to drive the parts of the clamping devices for clamping the copper bar to rotate to a predetermined angle.

[0081] S200. First, use one clamping device to clamp the copper bar to position the copper bar, and then use other clamping devices to clamp the copper bar so that the clamped parts of the copper bar reach a predetermined height difference, and the copper bar is bent.

[0082] As described above, although the present invention has been shown and described with reference to specific preferred embodiments, it should not be construed as a limitation on the present invention itself. Various changes in form and detail may be made thereto without departing from the spirit and scope of the present invention as defined by the appended claims.

Claims

1. A bending device, characterized in that, Including: A height adjustment device, a first clamping device, and a second clamping device; At least one of the clamping devices is installed on the height adjustment device; The first clamping device and the second clamping device are used to clamp the two ends of the bent part of the copper bar respectively; The height adjustment device is used to adjust the height difference when different clamping devices clamp the copper bar.

2. The bending device according to claim 1, wherein It further includes: a third clamping device; The first clamping device, the second clamping device, and the third clamping device are arranged in sequence, and at least one of the first clamping device, the second clamping device, and the third clamping device is installed on the height adjustment device.

3. The bending device according to claim 2, characterized in that, The second clamping device is installed on the height adjustment device.

4. The bending device according to claim 1, characterized in that, The clamping device includes: a fixed frame, a clamping power source, and a mold; The clamping power source is installed on the fixed frame, the mold is installed on the clamping power source, and the clamping power source is used to drive the mold to clamp the copper bar; The clamping power source includes: two hydraulic cylinders, and multiple clamping devices are distributed along the width direction of the clamping power source.

5. The bending device according to claim 1, wherein It further includes: A spacing adjustment device; At least one of the clamping devices is installed on the spacing adjustment device; The spacing adjustment device is used to adjust the spacing between the parts of the copper bar clamped by different clamping devices.

6. The bending device according to claim 5, wherein The same clamping device is installed on the height adjustment device or the spacing adjustment device.

7. The bending device according to claim 1, wherein It further includes: An angle compensation device; At least one of the clamping devices is equipped with an angle compensation device, and the angle compensation device is used to make the angle of the part of the clamping device clamping the copper bar adjustable.

8. The bending device according to claim 7, wherein The angle compensation device includes: an angle compensation power source, an angle compensation linear displacement mechanism, and an angle compensation rotation mechanism; The angle compensation power source is installed on the fixed frame of the clamping device, the angle compensation rotation mechanism is installed on the mold of the clamping device, and the angle compensation linear displacement mechanism connects the angle compensation power source and the angle compensation rotation mechanism; The mold equipped with the angle compensation device is rotatably installed on the clamping power source; When the angle compensation power source drives the angle compensation linear displacement mechanism to move, the angle compensation rotation mechanism drives the mold to rotate.

9. The bending device according to claim 8, characterized in that, The angle compensation rotation mechanism includes: a slider, an eccentric shaft, a connecting piece, and a rotating shaft; The slider is installed on the eccentric shaft, the eccentric shaft is installed on the connecting piece, and the connecting piece and the rotating shaft are installed on the mold of the clamping device; The slider connects the angle compensation linear displacement mechanism and the fixed frame of the clamping device, and the rotating shaft connects the fixed frame of the clamping device; The slider is provided with a receiving cavity, the eccentric shaft is inserted into the receiving cavity, and the eccentric shaft is spaced a predetermined distance from the upper and lower sides of the receiving cavity; When the angle compensation power source drives the slider to move through the angle compensation linear displacement mechanism, the slider drives the eccentric shaft, the connecting piece, and the mold to rotate around the rotating shaft.

10. A processing method for a bending device according to any one of claims 1-9, characterized in that, Including: S100. According to the angle that the bent part of the copper bar needs to be bent, use the height adjustment device to adjust the height of at least one clamping device so that the parts of different clamping devices for clamping the copper bar reach a predetermined height difference; S200. First, use one clamping device to clamp the copper bar to position the copper bar, and then use other clamping devices to clamp the copper bar so that the clamped parts of the copper bar reach a predetermined height difference, and the copper bar is bent.

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