Commutator bending and cutting fixture

Abstract

This utility model provides a reversing wire bending and cutting fixture, relating to the field of bending and cutting fixture technology. It includes: an upper die assembly comprising an upper die frame, a forming upper die mounted on the upper die frame, a cutting blade, and a limiting post. The forming upper die and the cutting blade can move together with the upper die frame. The end heights of the forming upper die, the limiting post, and the cutting blade are arranged sequentially from low to high, realizing a forming-then-cutting action. The shape of the forming upper die can be adaptively set according to the bending shape. When processing the reversing wire, the forming upper die and the pressure rod contact the reversing wire, cooperating with the top block to perform a bending action. After bending, the limiting post contacts the top block, the pressing top block compresses the spring and descends, and after the top block disengages from the reversing wire, the cutting blade contacts the reversing wire to cut it, realizing a forming-then-cutting action, with forming and cutting completed in one step. The optimized fixture completes cutting and forming in one step, significantly improving efficiency and reducing costs and labor intensity compared to traditional methods.

Description

Technical Field

[0001] This utility model relates to the field of bending and cutting tooling technology, and in particular to bending and cutting tooling for reversing wires. Background Technology

[0002] The original process for commutator copper wire (hereinafter referred to as commutator wire) in motors was to first cut it to its total length and then manually bend it using a bending fixture. Another method was to bend it using pliers. After cutting, the length of the product was relatively short, which was inconvenient to operate and labor-intensive. Only 1200 wires could be bent per worker (calculated in 8 hours), which was inefficient and led to increased costs. In response to the above defects, this application was filed. Utility Model Content

[0003] The purpose of this invention is to provide a bending and cutting fixture for commutator wires, which solves the problems of high processing strength and low processing efficiency in the current commutator wire bending process.

[0004] To solve the above problems, this utility model provides a reversing wire bending and cutting fixture, including: an upper die assembly: including an upper die frame, a forming upper die mounted on the upper die frame, a cutting blade and a limiting post. The forming upper die and the cutting blade can move together with the upper die frame. The end heights of the forming upper die, the limiting post and the cutting blade are set sequentially from low to high to realize the action of forming first and then cutting. The shape of the forming upper die can be adapted to the bending shape.

[0005] The lower die assembly includes a lower die frame, a wire die cavity mounted on the lower die frame, a top block, an elastic element connected to the top block, and a limiting block. The wire die cavity is used for the reversing wire to pass through, the limiting block is used to limit the length of the reversing wire that passes through the wire die cavity, the top block is used to cooperate with the upper forming die to achieve bending, and the limiting post is used to press the top block, so that the top block compresses the elastic element and disengages from the reversing wire, facilitating the subsequent cutting action.

[0006] Guide assembly: includes guide post and elastic element 2. The upper mold frame can move along the guide post. One end of the guide post is connected to the lower mold frame. The upper mold frame is fitted on the outside of the guide post. The elastic element 2 is disposed between the lower mold frame and the upper mold frame.

[0007] According to one embodiment of the present invention, a pressure rod is installed on the upper mold frame, the pressure rod is connected to an elastic element, and the pressure rod is used to apply pressure to the reversing wire during bending and cutting to keep the reversing wire stable.

[0008] The end of the pressure bar is preferably flush with the end of the forming upper die. While bending, the pressure bar applies pressure to the reversing wire. The pressure bar is positioned between the forming upper die and the cutting blade.

[0009] Preferably, all elastic elements in this design are springs.

[0010] According to one embodiment of the present invention, the upper mold assembly further includes a mold handle, the mold handle is fixedly connected to the upper mold frame, the elastic element is disposed in the mold handle, one end of the pressure rod extends into the mold handle, the mold handle is provided with a sliding groove for the pressure rod to slide, and the mold handle is a cylinder to facilitate the press to apply pressure to it.

[0011] According to one embodiment of the present invention, the elastic element is disposed in the lower mold frame, and the lower mold frame is provided with a groove for accommodating the top block.

[0012] According to one embodiment of the present invention, the upper forming mold and the cutting blade are integrally formed on the action actuator, which makes the structure more integrated, easier to assemble, and reduces the failure rate.

[0013] According to one embodiment of the present invention, the action actuator is provided with a through hole for the pressure rod to pass through.

[0014] According to one embodiment of the present invention, the position of the limiting block is adjustable and installed on the lower mold frame. By adjusting the installation position, the extension length limit of the commutator wire can be adjusted.

[0015] According to one embodiment of the present invention, the limiting block is provided with a plurality of bolt holes, and the limiting block is connected to the lower mold frame by bolts. The corresponding bolt holes are selected for fixing, thereby realizing the adjustment of the position of the limiting block.

[0016] According to one embodiment of the present invention, two sets of limiting posts are provided, respectively located on both sides of the upper forming mold, and are respectively used to contact the top block on both sides to ensure the stable descent of the top block.

[0017] According to one embodiment of the present invention, the guide assembly is provided in three to five groups.

[0018] The beneficial effects of this utility model are that, in this solution, when processing the reversing wire, the upper mold assembly and the lower mold assembly perform a mold closing action, the forming upper mold and the pressure rod contact the reversing wire, and the top block performs a bending action. After bending, the limiting post contacts the top block, the lower pressing top block compresses the spring and descends, and after the top block disengages from the reversing wire, the cutting blade contacts the reversing wire to cut it, realizing the action of forming first and then cutting, and the forming and cutting are completed in one step. The optimized tooling completes the cutting and forming in one step, which can greatly improve efficiency and reduce costs and labor intensity compared with the traditional method. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 A schematic diagram of the overall structure of the reversing wire bending and cutting fixture;

[0021] Figure 2This is the front view of the reversing wire bending and cutting fixture;

[0022] Figure 3 for Figure 2 Schematic diagram of the structure at point BB;

[0023] Figure 4 Right view of the reversing wire bending and cutting fixture;

[0024] Figure 5 for Figure 4 Schematic diagram of the structure at point AA;

[0025] Figure 6 This is a schematic diagram of the actuator and the pressure rod. Detailed Implementation

[0026] The following description is only intended to disclose the present invention so that those skilled in the art can implement it. The embodiments in the following description are merely examples, and those skilled in the art will conceive of other obvious modifications. The basic principles of the present invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other solutions that do not depart from the spirit and scope of the present invention.

[0027]

Example 1

[0028] Reversing wire bending and cutting fixtures, such as Figure 1 It includes: upper mold assembly, lower mold assembly and guide assembly.

[0029] It should be noted that this solution is applicable not only to the bending and cutting of commutation wires, but also to the bending and cutting of other types of wires.

[0030] The upper mold assembly includes an upper mold base 5, a mold handle 6, a forming upper mold 10 mounted on the upper mold base 5, a cutting blade 18, a limiting post 8, and a pressure rod 11, as shown below. Figure 5 , Figure 6 The upper forming mold 10 and the cutting blade 18 are integrally formed on the action actuator 19, which makes the structure more integrated, easier to assemble, and reduces the failure rate. The action actuator 19 is provided with a through hole for the pressure rod 11 to pass through. The pressure rod 11 passes through the middle of the action actuator 19 and is located between the upper forming mold 10 and the cutting blade 18.

[0031] The actuator 19 is fixedly installed in the upper mold frame 5. The forming upper mold 10 and the cutting knife 18 can move together with the upper mold frame 5. The mold handle 6 is connected to the upper mold frame 5 by bolts. The elastic element 15 is set in the mold handle 6. One end of the pressure rod 11 extends into the mold handle 6. The mold handle 6 is provided with a sliding groove for the pressure rod 11 to slide. The mold handle 6 is a cylinder, which makes it easy for the press to apply pressure to it.

[0032] The pressure bar 11 is used to apply pressure to the reversing wire during bending and cutting to keep the reversing wire stable. The end position of the pressure bar 11 is preferably flush with the end position of the forming upper die 10. While performing the bending action, the pressure bar 11 applies pressure to the reversing wire 20.

[0033] like Figure 1 , 6 The end heights of the forming upper die 10, the limiting post 8, and the cutting blade 18 are arranged sequentially from low to high. When the upper die assembly descends, the forming upper die 10 first contacts the reversing wire 20 for bending, then the limiting post 8 contacts the top block 12. After the pressing top block 12 disengages from the reversing wire 20, the cutting blade 18 contacts the reversing wire 20 for cutting, realizing the action of forming first and then cutting. The shape of the forming upper die 10 can be adapted to the bending shape.

[0034] Lower mold components, such as Figure 1 , Figure 3 , Figure 5 It includes a base plate 1, a lower mold frame 2, a wire mold cavity 17 disposed on the lower mold frame 2, a top block 12, an elastic element 16 connected to the top block 12, and a limiting block 13. The elastic element 16 is disposed in the lower mold frame 2, and the lower mold frame 2 is provided with a groove 21 for accommodating the top block 12.

[0035] The lower mold frame 2 is fixedly installed on the base plate 1. The upper part of the lower mold frame 2 has a protruding position, in which a wire mold cavity 17 is provided. The wire mold cavity 17 is used for the reversing wire 20 to pass through. The limiting block 13 is used to limit the length of the reversing wire passing through the wire mold cavity 17. The area between the limiting blocks 13 is the cutting and bending area.

[0036] The top block 12 is configured to cooperate with the upper forming die 10 to achieve bending. The limiting post 8 is used to press the top block 12, so that the top block 12 compresses the elastic element and disengages from the reversing wire, which facilitates the subsequent cutting action. Preferably, two sets of limiting posts 8 are provided, respectively located on both sides of the upper forming die 10, and respectively contacting the top block 12 on both sides to ensure the stable descent of the top block 12.

[0037] The guiding assembly includes a guide post 4 and an elastic element 2 3. The upper mold frame 5 can move along the guide post 4. One end of the guide post 4 is connected to the lower mold frame 2. The upper mold frame 5 is fitted on the outside of the guide post 4. The elastic element 2 3 is disposed between the lower mold frame 2 and the upper mold frame 5. In this embodiment, the guiding assembly is provided in three to five sets.

[0038] Preferably, all elastic elements in this design are springs.

[0039] In this embodiment, the limiting block 13 is mounted on the lower mold frame 2 in an adjustable position. By adjusting the mounting position, the extension length limit of the reversing wire 20 can be adjusted. Furthermore, as... Figure 5The limiting block 13 is provided with three bolt holes. The limiting block 13 is connected to the lower mold frame 2 by bolts 14. Two corresponding bolt holes are selected for fixing to realize the adjustment of the position of the limiting block 13.

[0040] Working steps: Pass the reversing wire 20 through the wire mold cavity 17 and press against the limiting block 13. The upper mold assembly and the lower mold assembly perform the mold closing action. The forming upper mold 10 and the pressure rod 11 contact the reversing wire 20 and cooperate with the top block 12 to perform the bending action. At this time, the pressure is not enough to compress the spring of the top block 12. After the bending is completed, the limiting post 8 contacts the top block 12 and the pressing top block 12 compresses the spring and descends. After the top block 12 and the reversing wire 20 are separated, the cutting knife 18 contacts the reversing wire 20 to cut. The forming and cutting actions are realized in one step. The optimized tooling completes the cutting and forming in one step. It can produce up to 3,000 pieces per work (calculated in 8 hours), which greatly improves efficiency compared with the traditional method.

[0041] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functional and structural principles of the present invention have been shown and explained in the embodiments. Without departing from the stated principles, the implementation of the present invention may have any variations and modifications.

Claims

1. A reversing wire bending and cutting fixture, characterized in that: include Upper mold assembly: includes an upper mold frame (5), a forming upper mold (10) mounted on the upper mold frame (5), a cutting blade (18), and a limiting post (8). The forming upper mold (10) and the cutting blade (18) can move together with the upper mold frame (5). The end heights of the forming upper mold (10), the limiting post (8), and the cutting blade (18) are arranged sequentially from low to high to realize the action of forming first and then cutting. The lower mold assembly includes a lower mold frame (2), a wire mold cavity (17) disposed on the lower mold frame (2), a top block (12), an elastic element (16) connected to the top block (12), and a limiting block (13). The wire mold cavity (17) is used for the reversing wire to pass through. The limiting block (13) is used to limit the length of the reversing wire that passes through the wire mold cavity (17). The top block (12) is used to cooperate with the upper forming mold (10) to achieve bending. The limiting post (8) is used to press the top block (12) so that the top block (12) compresses the elastic element and separates from the reversing wire, which facilitates the subsequent cutting action. The guiding assembly includes a guide post (4) and an elastic element (3), and the upper mold frame (5) is able to move along the guide post (4).

2. The reversing wire bending and cutting fixture according to claim 1, characterized in that: A pressure rod (11) is installed on the upper mold frame (5). The pressure rod (11) is connected to the elastic element three (15). The pressure rod (11) is used to apply pressure to the reversing wire during bending and cutting.

3. The reversing wire bending and cutting fixture according to claim 2, characterized in that: The upper mold assembly also includes a mold handle (6), which is fixedly connected to the upper mold frame (5). The elastic element three (15) is disposed in the mold handle (6), and one end of the pressure rod (11) extends into the mold handle (6).

4. The reversing wire bending and cutting fixture according to any one of claims 1-3, characterized in that: The elastic element (16) is disposed in the lower mold frame (2), and the lower mold frame (2) is provided with a groove (21) for accommodating the top block (12).

5. The reversing wire bending and cutting fixture according to any one of claims 1-3, characterized in that: The upper molding die (10) and the cutting blade (18) are integrally molded on the action actuator (19).

6. The reversing wire bending and cutting fixture according to claim 5, characterized in that: The action actuator (19) is provided with a through hole for the pressure rod (11) to pass through.

7. The reversing wire bending and cutting fixture according to claim 1, characterized in that: The position of the limiting block (13) is adjustable and installed on the lower mold frame (2).

8. The reversing wire bending and cutting fixture according to claim 7, characterized in that: The limiting block (13) is provided with several bolt holes, and the limiting block (13) is connected to the lower mold frame (2) by bolts (14).

9. The reversing wire bending and cutting fixture according to claim 5, characterized in that: Two sets of limiting posts (8) are provided, respectively located on both sides of the upper forming mold (10).

10. The reversing wire bending and cutting fixture according to claim 1, characterized in that: The guide components are configured in four groups.

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