Bending angle compensation device, bending equipment and machining method

Abstract

The invention discloses a bending angle compensation device, bending equipment and a machining method, and belongs to the technical field of copper bar machining. The bending angle compensation device comprises an angle compensation power source, an angle compensation linear displacement mechanism and an angle compensation rotating mechanism, the angle compensation power source is installed on a fixing frame of the bending equipment, and the angle compensation rotating mechanism is installed on a mold of the bending equipment. The angle compensation linear displacement mechanism is connected with the angle compensation power source and the angle compensation rotating mechanism, and when the angle compensation power source drives the angle compensation linear displacement mechanism to move, the angle compensation rotating mechanism drives the mold to rotate. The process of adjusting the bending angle compensation amount does not need to replace a die, the difficulty and cost of adjusting the bending angle are reduced, and the problems that in the prior art, the angle compensation amount of a die is fixed, and when a product is changed, a corresponding die needs to be replaced for machining are solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of copper bar processing, and specifically relates to a bending angle compensation device, 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. In the prior art, the mold for bending copper bars is a fixed structure. In order to reduce the pressure holding time, an angle compensation amount is usually added on the basis of the original bending angle when designing the mold to improve the processing efficiency. However, this structure has a fixed angle compensation amount, 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 angle compensation device, a bending device and a processing method, which can drive the mold to rotate to adjust the bending angle compensation amount, and solve the problem that the angle compensation amount of the mold in the prior art is fixed, and the corresponding mold needs to be replaced for processing when the product changes.

[0004] The technical solution of the present invention is as follows: In the first aspect, a bending angle compensation device is installed on a bending device.

[0005] The bending angle compensation device includes: an angle compensation power source, an angle compensation linear displacement mechanism and an angle compensation rotation mechanism.

[0006] The angle compensation power source is installed on the fixed frame of the bending device, the angle compensation rotation mechanism is installed on the mold of the bending device, and the angle compensation linear displacement mechanism connects the angle compensation power source and the angle compensation rotation mechanism.

[0007] 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.

[0008] In a further embodiment of the first aspect, two groups of the angle compensation linear displacement mechanisms and the angle compensation rotation mechanisms are arranged on both sides of the fixture.

[0009] The angle compensation power source includes: a rotating motor and a synchronous belt transmission mechanism. The synchronous belt transmission mechanism is connected to the rotating motor, and two groups of the angle compensation linear displacement mechanisms are connected to the synchronous belt transmission mechanism, so that the rotating motor drives the two angle compensation linear displacement mechanisms to move through the synchronous belt transmission mechanism, and one rotating motor can drive the two angle compensation linear displacement mechanisms to move through the synchronous belt transmission mechanism, which can drive the fixture to rotate on both sides of the fixture at the same time, improving the synchronism of the overall rotation of the fixture and the stability when stopping.

[0010] In a further embodiment of the first aspect, the angle compensation linear displacement mechanism includes: a lead screw mechanism, the nut of the lead screw mechanism is installed on the synchronous belt drive mechanism, one end of the lead screw of the lead screw mechanism is matched with the nut, and the other end is connected to the angle compensation rotation mechanism. Through the self-locking function of the lead screw mechanism, the rotation mechanism can cooperate to lock the linear displacement mechanism to the rotation mechanism when not working, improving the working stability of the bending equipment.

[0011] 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.

[0012] 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 die of the bending equipment.

[0013] 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 bending equipment.

[0014] 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 die to rotate around the rotating shaft.

[0015] In a further embodiment of the first aspect, the slider is provided with a receiving cavity, the eccentric shaft is inserted into the receiving cavity, and the eccentric shaft is spaced from the upper and lower sides of the receiving cavity by a predetermined distance. By setting the eccentric shaft to be spaced from the upper and lower sides of the receiving cavity by a predetermined distance, when the clamping power source of the clamping device drives the die to move, the acting force transmitted to the slider can be reduced, improving the service life of the angle compensation linear displacement mechanism and the angle compensation rotation mechanism, and thus improving the service life of the bending equipment.

[0016] In a further embodiment of the first aspect, the eccentric shaft includes: a square shaft portion.

[0017] The square shaft portion is inserted into the receiving cavity of the slider.

[0018] The left and right sides of the square shaft portion and 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.

[0019] During operation, one side of the square shaft portion is in contact with one of the left and right sides of the receiving cavity, causing the slider to drive the eccentric shaft to move. Through the cooperation of the flat side walls of the square shaft portion and the left and right sides of the receiving cavity, a surface connection can be achieved when the slider drives the eccentric shaft to move, improving the stability of the slider driving the eccentric shaft to move.

[0020] In a further embodiment of the first aspect, the fixed frame of the bending equipment is provided with a chute, the slider is installed in the chute, and the slider can move along the extension direction of the chute.

[0021] In a second aspect, a bending device includes a clamping device and the bending angle compensation device described in the first aspect.

[0022] At least two of the clamping devices are arranged along a predetermined direction, and the clamping devices are used to clamp the copper bar. When at least two of the clamping devices clamp the copper bar, a height difference is generated at the bending part of the copper bar.

[0023] The clamping device includes a fixed frame, a clamping power source, and a mold.

[0024] 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.

[0025] At least one of the clamping devices is installed with a bending angle compensation device, and the mold installed with the bending angle compensation device is rotatably installed on the clamping power source.

[0026] In a further embodiment of the second aspect, the mold installed with the angle compensation device includes a moving mold, a guiding mechanism, and a fixed mold.

[0027] The moving mold is installed on the clamping power source, the moving mold is connected to the guiding mechanism, the guiding mechanism is connected to the angle compensation rotating mechanism, and the fixed mold is connected to the angle compensation rotating mechanism.

[0028] When the angle compensation device works, the angle compensation rotating mechanism drives the fixed mold and the guiding mechanism to rotate simultaneously, and the guiding mechanism drives the moving mold to rotate, improving the integrity of the mold rotation during operation, and further improving the stability of the mold operation.

[0029] In a third aspect, a processing method based on the bending device described in the second aspect includes: S100. According to the compensation amount of the bending angle required at the bending part of the copper bar, use the angle compensation device to drive the mold to rotate to a predetermined angle.

[0030] S200. First, use one clamping device to clamp the copper bar for positioning, and then use other clamping devices to clamp the copper bar, so that a height difference is generated at the clamped part of the copper bar, and the copper bar is bent.

[0031] The beneficial effects of the present invention are as follows: In this application, the angle compensation power source, the angle compensation linear displacement mechanism, and the angle compensation rotating mechanism drive the mold to rotate to adjust the bending angle compensation amount, which can increase the bending angle according to needs on the basis of the original designed bending angle, reduce the influence of material springback, reduce the holding time, improve the processing efficiency, and the process of adjusting the bending angle compensation amount does not require replacing the mold, reducing the difficulty and cost of adjusting the bending angle, and solving the problem in the prior art that the angle compensation amount of the mold is fixed and corresponding molds need to be replaced for processing when the product changes. Description of the Drawings

[0032] Figure 1 It is a front structural schematic diagram of an angle compensation device and two clamping device embodiments of the present invention.

[0033] Figure 2 It is a back structural schematic diagram of an angle compensation device and two clamping device embodiments of the present invention.

[0034] Figure 3 It is a cross-sectional schematic diagram of the angle compensation device of the present invention.

[0035] Figure 4 It is a schematic diagram of the cooperation between the rotating shaft of the angle compensation device of the present invention and the mold.

[0036] Figure 5 It is a principle sketch of the cooperation of two clamping devices of the present invention.

[0037] The reference numerals shown in the figure are: bending angle compensation device 1, angle compensation power source 11, rotating motor 111, synchronous belt transmission mechanism 112, angle compensation linear displacement mechanism 12, angle compensation rotating mechanism 13, slider 131, eccentric shaft 132, connecting member 133, rotating shaft 134, clamping device 2, fixed frame 21, clamping power source 22, mold 23, moving mold 231, guiding mechanism 232, fixed mold 233. Specific embodiments

[0038] In the following description, a large number of 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 examples, in order to avoid confusion with the present invention, some technical features well known in the art are not described.

[0039] The present invention discloses a bending angle compensation device, a bending device and a processing method, which can drive the mold to rotate to adjust the bending angle compensation amount, and solves the problem that the angle compensation amount of the existing mold is fixed and the corresponding mold needs to be replaced for processing when the product changes.

[0040] In a first aspect, the bending angle compensation device 1 is installed on the bending device, and the bending angle compensation device 1 includes: an angle compensation power source 11, an angle compensation linear displacement mechanism 12 and an angle compensation rotating mechanism 13.

[0041] The angle compensation power source 11 is installed on the fixed frame 21 of the bending device, the angle compensation rotating mechanism 13 is installed on the mold 23 of the bending device, and the angle compensation linear displacement mechanism 12 connects the angle compensation power source 11 and the angle compensation rotating mechanism 13.

[0042] When the angle compensation power source 11 drives the angle compensation linear displacement mechanism 12 to move, the angle compensation rotary mechanism 13 drives the mold 23 to rotate. Through the conversion of the linear motion and rotary motion of the angle compensation linear displacement mechanism 12 and the angle compensation rotary mechanism 13, it is possible to prevent the force on the clamping device 2 from being directly transmitted to the angle compensation power source 11 along a single action, thereby extending the service life of the angle compensation power source 11.

[0043] Regarding the angle compensation power source 11, two sets of angle compensation linear displacement mechanisms 12 and angle compensation rotary mechanisms 13 are arranged on both sides of the fixture.

[0044] The angle compensation power source 11 includes: a rotary motor 111 and a synchronous belt drive mechanism 112. The synchronous belt drive mechanism 112 is connected to the rotary motor 111, and two sets of angle compensation linear displacement mechanisms 12 are connected to the synchronous belt drive mechanism 112, enabling the rotary motor 111 to drive the two angle compensation linear displacement mechanisms 12 to move through the synchronous belt drive mechanism 112.

[0045] As shown in the figure, the angle compensation power source 11 includes: an angle compensation mounting bracket. The angle compensation mounting bracket is mounted on the fixed frame 21 of the bending equipment, and the rotary motor 111 and the synchronous belt drive mechanism 112 are mounted on the angle compensation mounting bracket.

[0046] Regarding the angle compensation linear displacement mechanism 12, it includes: a lead screw mechanism. The nut of the lead screw mechanism is mounted on the synchronous belt drive mechanism 112. One end of the lead screw of the lead screw mechanism is engaged with the nut, and the other end is connected to the angle compensation rotary mechanism 13.

[0047] Regarding the angle compensation rotary mechanism 13, the angle compensation rotary mechanism 13 includes: a slider 131, an eccentric shaft 132, a connecting member 133, and a rotary shaft 134.

[0048] The slider 131 is mounted on the eccentric shaft 132, the eccentric shaft 132 is mounted on the connecting member 133, and the connecting member 133 and the rotary shaft 134 are mounted on the mold 23 of the bending equipment.

[0049] The slider 131 connects the angle compensation linear displacement mechanism 12 and the fixed frame 21 of the clamping device 2, and the rotary shaft 134 connects the fixed frame 21 of the bending equipment.

[0050] When the angle compensation power source 11 drives the slider 131 to move through the angle compensation linear displacement mechanism 12, the slider 131 drives the eccentric shaft 132, the connecting member 133, and the mold 23 to rotate around the rotary shaft 134.

[0051] Regarding the cooperation between the slider 131 and the receiving cavity, the slider 131 is provided with a receiving cavity, the eccentric shaft 132 is inserted into the receiving cavity, and the eccentric shaft 132 is spaced apart from the upper and lower sides of the receiving cavity by a predetermined distance.

[0052] In this embodiment, the eccentric shaft 132 includes: Figure 3 The square shaft portion shown.

[0053] The circular shaft portion is connected to the connecting member 133. The square shaft portion is inserted into the receiving cavity of the slider 131. A circular shaft portion may also be provided at one end of the eccentric shaft 132 so that the circular shaft portion is connected to the connecting member 133.

[0054] The left and right sides of the square shaft portion and 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.

[0055] During operation, one side of the left and right sides of the square shaft portion abuts against the corresponding side, causing the slider 131 to drive the eccentric shaft 132 to move.

[0056] Wherein 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 12 passes.

[0057] Regarding the cooperation between the slider 131 and the angle compensation linear displacement mechanism 12, the fixed frame 21 of the bending device is provided with a chute, and the slider 131 is installed in the chute, so that the angle compensation linear displacement mechanism 12 drives the slider 131 to move along the extension direction of the chute. The upper and lower sides of the slider 131 and the upper and lower sides of the chute are surface - connected, further improving the stability of the slider driving the eccentric shaft to move.

[0058] In other embodiments, the angle compensation linear displacement mechanism 12 may also include: a guide rail. The guide rail is installed on the fixed frame 21 of the bending device, and the slider 131 is installed on the guide rail, and the slider 131 can move along the extension direction of the guide rail.

[0059] In a second aspect, a bending device includes: a clamping device 2 and the bending angle compensation device 1 described in the first aspect.

[0060] At least two clamping devices 2 are distributed along a predetermined direction. The clamping device 2 is used for clamping the copper bar. When at least two clamping devices 2 clamp the copper bar, a height difference is generated at the bending part of the copper bar.

[0061] The clamping device 2 includes: a fixed frame 21, a clamping power source 22, and a mold 23.

[0062] The clamping power source 22 is installed on the fixed frame 21, and the mold 23 is installed on the clamping power source 22. The clamping power source 22 is used to drive the mold 23 to clamp the copper bar.

[0063] At least one clamping device 2 is installed with the bending angle compensation device 1. The mold 23 installed with the bending angle compensation device 1 is rotatably installed on the clamping power source 22. The mold 23 passes through as Figure 4The articulated structure shown is rotatably mounted on the clamping power source 22.

[0064] Regarding the mold 23, the mold 23 equipped with the angle compensation device includes: a moving mold 231, a guiding mechanism 232, and a fixed mold 233.

[0065] The moving mold 231 is mounted on the clamping power source 22. The moving mold 231 is connected to the guiding mechanism 232. The guiding mechanism 232 is connected to the angle compensation rotating mechanism 13. The fixed mold 233 is connected to the angle compensation rotating mechanism 13. Among them, the guide rail of the guiding mechanism 232 is mounted on the connecting member 133 of the angle compensation rotating mechanism 13.

[0066] When the angle compensation device operates, it causes the angle compensation rotating mechanism 13 to drive the fixed mold 233 and the guiding mechanism 232 to rotate simultaneously, and the guiding mechanism 232 drives the moving mold 231 to rotate.

[0067] The fixed mold 233 of the mold 23 not equipped with the angle compensation device is mounted on the fixed frame 21.

[0068] In other embodiments, the guiding mechanism 232 can also be a combination of a guiding shaft and a linear bearing. The guiding shaft is mounted on the fixed mold 233, and the linear bearing is mounted on the moving mold 231, and the guiding shaft and the linear bearing cooperate.

[0069] In a third aspect, the processing method of the bending device based on the second aspect includes: S100. According to the compensation amount of the bending angle required for the bending part of the copper bar, use the angle compensation device to drive the mold 23 to rotate to a predetermined angle. Among them, the angle compensation power source 11 of the angle compensation device drives the angle compensation linear displacement mechanism 12 to move in a straight line direction to drive the angle compensation rotating mechanism 13 to rotate, so that the angle compensation rotating mechanism 13 drives the mold 23 to rotate to a predetermined angle.

[0070] S200. First, use a clamping device 2 to clamp the copper bar to position the copper bar, and then use other clamping devices 2 to clamp the copper bar, so that the height difference of the clamped part of the copper bar reaches a predetermined size, and the copper bar is bent.

[0071] 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 of the present invention itself. Various changes can be made in its form and details without departing from the spirit and scope of the present invention defined by the appended claims.

Claims

1. A bending angle compensation device, which is installed on a bending equipment; It is characterized in that The bending 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 bending equipment, the angle compensation rotation mechanism is installed on the mold of the bending equipment, and the angle compensation linear displacement mechanism connects the angle compensation power source and the angle compensation rotation mechanism; 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.

2. The bending angle compensation device according to claim 1, wherein, Two sets of the angle compensation linear displacement mechanism and the angle compensation rotation mechanism are arranged on both sides of the fixture; The angle compensation power source includes: a rotating motor and a synchronous belt transmission mechanism. The synchronous belt transmission mechanism is connected to the rotating motor, and two sets of the angle compensation linear displacement mechanisms are connected to the synchronous belt transmission mechanism, so that the rotating motor drives the two angle compensation linear displacement mechanisms to move through the synchronous belt transmission mechanism.

3. The bending angle compensation device according to claim 1, wherein The angle compensation linear displacement mechanism includes: a lead screw mechanism. The nut of the lead screw mechanism is installed on the synchronous belt transmission mechanism, one end of the lead screw of the lead screw mechanism is matched with the nut, and the other end is connected to the angle compensation rotation mechanism.

4. The bending angle compensation device according to claim 1, 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 bending equipment; 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 bending equipment; 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.

5. The bending angle compensation device according to claim 4, wherein The slider is provided with a receiving cavity, the eccentric shaft is inserted into the receiving cavity, and the eccentric shaft is arranged at a predetermined distance from the upper and lower sides of the receiving cavity.

6. The bending angle compensation device according to claim 5, characterized in that, The eccentric shaft includes: a square shaft portion; The square shaft portion is inserted into the receiving cavity of the slider; The left and right sides of the square shaft portion and 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, one side of the left and right sides of the square shaft portion is in contact with the other side, so that the slider drives the eccentric shaft to move.

7. The bending angle compensation device according to claim 4, characterized in that The fixed frame of the bending equipment is provided with a chute, the slider is installed in the chute, and the slider can move along the extension direction of the chute.

8. A bending device, characterized in that, Including: A clamping device and the bending angle compensation device according to any one of claims 1-7; At least two of the clamping devices are distributed along a predetermined direction. The clamping device is used for clamping a copper bar. When at least two of the clamping devices clamp the copper bar, a height difference is generated at the bending part of the copper bar; 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 for driving the mold to clamp the copper bar; At least one of the clamping devices is installed with a bending angle compensation device, and the mold installed with the bending angle compensation device is rotatably installed on the clamping power source.

9. The bending device according to claim 8, wherein, The mold installed with the angle compensation device includes: a moving mold, a guiding mechanism, and a fixed mold; The moving die is installed on the clamping power source. The moving die is connected to the guiding mechanism, the guiding mechanism is connected to the angle compensation rotating mechanism, and the fixed die is connected to the angle compensation rotating mechanism; When the angle compensation device works, the angle compensation rotating mechanism drives the fixed die and the guiding mechanism to rotate simultaneously, and the guiding mechanism drives the moving die to rotate.

10. The processing method of the bending device according to claim 8, characterized in that, It includes: S100. According to the compensation amount of the bending angle required for the bending part of the copper bar, use the angle compensation device to drive the mold to rotate to a predetermined angle; S200. First, use one clamping device to clamp the copper bar for positioning the copper bar, and then use other clamping devices to clamp the copper bar, so that a height difference is generated at the clamped part of the copper bar, and the copper bar is bent.

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