Flat wire bending tool for transformer manufacturing

Abstract

The utility model discloses a flat wire bending tool for transformer manufacturing, which relates to the technical field of transformer coil bending, and comprises a first clamping component, a second clamping component and a second clamping component, the first clamping component clamps a wire, the second clamping component and the first clamping component are arranged at an interval along the extension direction of the wire, and the second clamping component clamps the wire. The second clamping assembly can drive the wire to be bent. According to the flat wire bending tool for transformer manufacturing, through cooperation of the first clamping assembly and the second clamping assembly, bending of a wire can be achieved, so that the bending difficulty is reduced, the bending efficiency is improved, the bending effect is ensured, and the manufacturing quality of a coil is ensured.

Description

Technical Field

[0001] This utility model relates to the field of transformer coil bending technology, specifically a flat wire bending tool for transformer manufacturing. Background Technology

[0002] During the manufacturing process of transformer coils, external leads are required at locations corresponding to the number of coil turns due to changes in tap position. To reduce the space occupied by these leads within the transformer coil and optimize the spatial layout, the flat conductors must be bent. However, existing bending methods primarily rely on manual operation, where the flat conductors are held by hand and brute force is used to bend them. This method is laborious, time-consuming, and the bending effect is not ideal, potentially affecting the manufacturing quality of the coils. Utility Model Content

[0003] The purpose of this invention is to provide a flat wire bending fixture for transformer manufacturing. This flat wire bending fixture for transformer manufacturing, through the cooperation of a first clamping component and a second clamping component, can achieve wire bending, thereby reducing bending difficulty, improving bending efficiency, ensuring bending effect, and thus ensuring the manufacturing quality of the coil.

[0004] The above-mentioned optimized structure of this utility model is achieved through the following technical solution: a flat wire bending fixture for transformer manufacturing, including a first clamping assembly, wherein the first clamping assembly clamps the wire;

[0005] A second clamping component is provided at a distance from the first clamping component along the extension direction of the wire, and the second clamping component clamps the wire and can cause the wire to bend.

[0006] In some embodiments, the first clamping assembly includes a first clamping member;

[0007] The second clamping member is hinged to the first clamping member, and one end of the second clamping member is attached to the first clamping member, while the other end has a gap with the first clamping member;

[0008] The notch is located at the end of the clamping surface of the first clamping member, and the wire passes through the notch.

[0009] In some embodiments, the first clamping assembly further includes a first fixing pin, which forms a hinge axis between the first clamping member and the second clamping member.

[0010] In some embodiments, the second clamping assembly includes a third clamping member;

[0011] A fourth clamping member is hinged to the third clamping member;

[0012] A limiting member is provided at one end of the third clamping member, and the wire is clamped between the third clamping member, the fourth clamping member, and the limiting member.

[0013] In some embodiments, the second clamping assembly further includes a second fixing pin, which forms a hinge axis between the third clamping member and the fourth clamping member.

[0014] In some embodiments, the third clamping member includes a first clamping arm, on which the limiting member is provided;

[0015] A first shank, which is fixedly connected to the first clamp arm;

[0016] The fourth clamping member includes a second clamping arm, and the wire is clamped between the second clamping arm and the first clamping arm;

[0017] The second shank is fixedly connected to the second clamp arm.

[0018] In some embodiments, the limiting member is an arc block.

[0019] In some embodiments, the conductor is a flat conductor.

[0020] In summary, this utility model has the following beneficial effects:

[0021] This flat wire bending fixture for transformer manufacturing uses a first clamping assembly to hold and fix the wire, and a second clamping assembly to hold and fix the part of the wire to be bent. By rotating the second clamping assembly, the wire is bent. Since the second clamping assembly increases the torque applied to the wire, the bending difficulty is reduced, the bending efficiency is improved, the bending effect is ensured, and thus the manufacturing quality of the coil is ensured. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the usage state of this utility model before bending;

[0023] Figure 2 This is a schematic diagram of the usage state of this utility model after bending;

[0024] Figure 3 This is a schematic diagram of the structure of the first clamping component of this utility model;

[0025] Figure 4 This is a schematic diagram of the structure of the second clamping component of this utility model.

[0026] In the figure: 1. First clamping assembly; 11. First clamping member; 12. Second clamping member; 13. Notch; 14. First fixing pin; 2. Second clamping assembly; 21. Third clamping member; 22. Fourth clamping member; 23. Limiting member; 24. Second fixing pin; 211. First clamping arm; 212. First insert handle; 221. Second clamping arm; 222. Second insert handle; 3. Wire. Detailed Implementation

[0027] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0028] refer to Figure 1-4 A flat conductor bending fixture for transformer manufacturing includes a first clamping component 1 and a second clamping component 2. The first clamping component 1 clamps one end of a conductor 3 to ensure its stability. The second clamping component 2 is spaced apart from the first clamping component 1 along the extension direction of the conductor 3. The second clamping component 2 can be positioned above or below the first clamping component 1, depending on the actual application, to facilitate the bending operation of the conductor. The second clamping component 2 clamps the other end of the conductor 3 (the part to be bent), and can drive the conductor 3 to bend. By operating the first clamping component 1 and the second clamping component 2 with both hands respectively, the conductor 3 can be clamped by the first clamping component 1 and the second clamping component 2. The second clamping component 2 can increase the torque acting on the conductor 3, thereby reducing the force required to bend the conductor 3, reducing the bending difficulty, improving bending efficiency, ensuring the bending effect, and thus ensuring the manufacturing quality of the coil.

[0029] In some embodiments, the first clamping assembly 1 includes a first clamping member 11, a second clamping member 12, and a notch 13. The second clamping member 12 is hinged to the first clamping member 11, with one end of the second clamping member 12 attached to the first clamping member 11 and the other end having a gap with the first clamping member 11. Both the first clamping member 11 and the second clamping member 12 may include a clamping arm and a clamping handle structure. By operating the clamping handle, the two clamping arms can be brought closer or further apart, thereby releasing or clamping the wire 3, achieving reliable fixation of the flat wire end, and preventing bending. During the process, the wire slips out. The notch 13 is located at the end of the first clamping member 11 and is attached to one end of the second clamping member 12. It can be located at the end of the clamping surface of the first clamping member 11. The wire 3 is passed through the notch 13 to ensure that it will not slip during the clamping process. The wire 3 can be a flat wire, and the notch 13 can be a square opening. The width of the notch 13 and the thickness of the wire 3 can be matched with a tolerance of ±0.05mm to ensure the positioning accuracy of the wire 3. The shape and size of the notch 13 can be set according to the wire 3 to be bent to meet the bending requirements of different wires 3.

[0030] In some embodiments, the first clamping assembly 1 further includes a first fixing pin 14, which passes through the first clamping member 11 and the second clamping member 12, forming a hinge axis between the first clamping member 11 and the second clamping member 12, thereby realizing the axial connection between the first clamping member 11 and the second clamping member 12. While the first clamping member 11 and the second clamping member 12 are fixedly connected, rotation between the first clamping member 11 and the second clamping member 12 can be realized so that the clamping angle can be flexibly adjusted during the clamping process.

[0031] In some embodiments, the second clamping assembly 2 includes a third clamping member 21, a fourth clamping member 22, and a limiting member 23. The fourth clamping member 22 is hinged to the third clamping member 21, and the clamping angle between the fourth clamping member 22 and the third clamping member 21 can be flexibly adjusted. The limiting member 23 is disposed at one end of the third clamping member 21, and the wire 3 is clamped between the third clamping member 21, the fourth clamping member 22, and the limiting member 23. The limiting member 23 can limit the movement range of the wire 3 between the third clamping member 21 and the fourth clamping member 22, thereby constraining the bending trajectory of the wire 3, ensuring that the bending radius meets the design requirements, and ensuring the accuracy of the bending angle.

[0032] In some embodiments, the second clamping assembly 2 further includes a second fixing pin 24, which passes through the third clamping member 21 and the fourth clamping member 22. The second fixing pin 24 can form a hinge axis between the third clamping member 21 and the fourth clamping member 22, thereby realizing the axial connection between the third clamping member 21 and the fourth clamping member 22. While the third clamping member 21 and the fourth clamping member 22 are fixedly connected, rotation between the third clamping member 21 and the fourth clamping member 22 can be realized so that the clamping angle can be flexibly adjusted during the clamping process.

[0033] In some embodiments, the third clamping member 21 includes a first clamping arm 211 and a first insert 212. The first clamping arm 211 is provided with a limiting member 23. The first insert 212 is fixedly connected to the first clamping arm 211. The fourth clamping member 22 includes a second clamping arm 221 and a second insert 222. The second clamping arm 221 and the first clamping arm 211 clamp the wire 3. The second insert 222 is fixedly connected to the second clamping arm 221. By controlling the first insert 212 and the second insert 222, the first clamping arm 211 and the second clamping arm 221 can move away from each other and move closer to each other, thereby realizing the clamping and fixing of the wire 3 by the second clamping component 2. At the same time, after fixing the wire 3, by rotating the first insert 212 and the second insert 222, the wire 3 can be made to fit against the limiting member 23 and rotate around the limiting member 23 as the center, thereby achieving the desired bending effect of the wire 3.

[0034] In some embodiments, the limiting member 23 can be an arc block, allowing the limiting member 23 to contact the conductor 3 through an arc surface, thus preventing sharp parts on the limiting member 23 from damaging the conductor 3 and affecting the coil forming quality. The contact surface between the limiting member 23 and the conductor 3 can be coated with a wear-resistant coating such as tungsten carbide to reduce frictional damage to the conductor 3. In addition, the radius of curvature R of the arc block is 2-3 times the thickness of the flat conductor to prevent stress concentration during bending.

[0035] In some embodiments, the first clamping member 11, the second clamping member 12, the third clamping member 21, and the fourth clamping member 22 can all be made of 40Cr alloy structural steel, and the clamping surfaces can be nickel-plated to improve wear resistance and reduce surface roughness, thereby reducing the risk of scratching the wire 3.

[0036] Hold wire bending pliers B with your left hand, aligning the flat wire in the notch of pliers B. Pliers B hold the flat wire in place. Hold wire bending pliers A with your right hand, clamping the flat wire and bending it to the desired position. Rotate wire bending pliers A counterclockwise around the arc welding block, allowing the welding block on pliers A to bend the flat wire to the desired effect.

[0037] The specific working principle is as follows:

[0038] When the transformer coil leads out a flat wire, the left hand can be used to hold the first clamping assembly 1 and pass the wire 3 through the notch 13 of the first clamping assembly 1, ensuring that it is accurately positioned within the notch 13. Operate the handle of the first clamping assembly 1 to bring the first clamping member 11 and the second clamping member 12 closer together, thereby clamping one end of the wire 3.

[0039] The second clamping assembly 2 can be held with the right hand, and the wire 3 to be bent is placed between the second clamping arm 221 and the first clamping arm 211. By operating the first insert 212 and the second insert 222, the second clamping arm 221 and the first clamping arm 211 are brought closer to each other, thereby clamping the wire 3.

[0040] Rotate the first clamp 212 and the second clamp 222 with your right hand. By rotating the first clamp 212 and the second clamp 222, the relative displacement of the two clamping components is achieved, so that the wire 3 rotates around the limiting member 23 as the center, thereby constraining the bending trajectory of the flat wire and realizing the bending of the wire 3.

[0041] When the wire 3 is bent to the required angle, stop rotating the second clamping assembly 2. Then remove the first clamping assembly 1 and the second clamping assembly 2 from the wire 3 to complete the bending of the wire 3.

[0042] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A flat conductor bending fixture for transformer manufacturing, characterized in that: Includes a first clamping component (1), which clamps a wire (3); The second clamping component (2) is spaced apart from the first clamping component (1) along the extension direction of the wire (3), and the second clamping component (2) clamps the wire (3) and can drive the wire (3) to bend.

2. The flat conductor bending fixture for transformer manufacturing according to claim 1, characterized in that: The first clamping assembly (1) includes a first clamping member (11); The second clamping member (12) is hinged to the first clamping member (11), and one end of the second clamping member (12) is attached to the first clamping member (11), while the other end has a gap with the first clamping member (11). A notch (13) is provided at the end of the clamping surface of the first clamping member (11), and the wire (3) is provided through the notch (13).

3. The flat conductor bending fixture for transformer manufacturing according to claim 2, characterized in that: The first clamping assembly (1) further includes a first fixing pin (14), which forms the hinge axis between the first clamping member (11) and the second clamping member (12).

4. The flat conductor bending fixture for transformer manufacturing according to claim 1, characterized in that: The second clamping assembly (2) includes a third clamping member (21); A fourth clamping member (22) is hinged to the third clamping member (21); The limiting member (23) is located at one end of the third clamping member (21), and the wire (3) is clamped between the third clamping member (21), the fourth clamping member (22) and the limiting member (23).

5. A flat conductor bending fixture for transformer manufacturing according to claim 4, characterized in that: The second clamping assembly (2) further includes a second fixing pin (24), which forms the hinge axis between the third clamping member (21) and the fourth clamping member (22).

6. A flat conductor bending fixture for transformer manufacturing according to claim 5, characterized in that: The third clamping member (21) includes a first clamping arm (211), and the first clamping arm (211) is provided with the limiting member (23). The first shank (212) is fixedly connected to the first clamp arm (211); The fourth clamping member (22) includes a second clamping arm (221), which clamps the wire (3) between the second clamping arm (221) and the first clamping arm (211). The second shank (222) is fixedly connected to the second clamp arm (221).

7. A flat conductor bending fixture for transformer manufacturing according to claim 4, characterized in that: The limiting component (23) is an arc block.

8. A flat conductor bending fixture for transformer manufacturing according to claim 1, characterized in that: The conductor (3) is a flat conductor.

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