Auxiliary static contact bending tooling table
Patent Information
- Application Number
- CN202521992946.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-17
- Publication Date
- 2026-09-08
- Estimated Expiration
- 2035-09-17
AI Technical Summary
本实用新型的结构合理、使用效果好，替代人工对辅助静触头折弯的方式，通过该工装台能够便于对辅助静触头进行折弯操作，能够对辅助静触头进行多次不同方向上的90°折弯作业以及U型结构折弯，同时还能够确保对辅助静触头折弯的精度，操作简单，提高了对辅助静触头折弯的效率。
Smart Images
Figure CN224724782U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of stationary contact processing technology, specifically to an auxiliary stationary contact bending fixture. Background Technology
[0002] Auxiliary stationary contacts are an important component in high-voltage switchgear. To accommodate the complex internal structures of control cabinets or distribution boxes and their connections with other components, the manufacturing process typically involves bending the auxiliary stationary contacts. This precise bending design helps to avoid damage or short circuits caused by dense wiring and components inside the cabinet when the cabinet door is opened or closed. Simultaneously, it allows for accurate positioning in confined spaces, enabling maintenance personnel to easily perform line inspections and component replacements, thus improving work efficiency.
[0003] The auxiliary stationary contact has an irregular shape, such as... Figure 1 As shown, the bending operation of the auxiliary stationary contact includes several 90° bends in different directions, as well as bends with a U-shaped structure design. Since the auxiliary stationary contact is made of a rigid conductive material, the existing technology uses manual methods to bend the auxiliary stationary contact, which has the drawback of making it difficult to bend the auxiliary stationary contact, and it is also difficult to guarantee the bending accuracy of the auxiliary stationary contact, resulting in low bending efficiency. Summary of the Invention
[0004] This invention addresses the problems of difficulty in bending auxiliary stationary contacts and the inability to guarantee bending accuracy in existing technologies by providing an auxiliary stationary contact bending fixture. This fixture facilitates bending operations on auxiliary stationary contacts, enabling 90° bending in different directions and U-shaped bending, while ensuring bending accuracy and improving bending efficiency.
[0005] To achieve the above objectives, the technical solution of this utility model is: an auxiliary stationary contact bending fixture, comprising a fixture plate and a bending wrench for bending the auxiliary stationary contact. One end of the fixture plate has an L-shaped notch, within which a limiting notch is formed, and a limiting component is provided at the limiting notch. The L-shaped notch and the limiting notch provide an installation position for the limiting component. The limiting component cooperates with the first and second bending structures of the auxiliary stationary contact, limiting the front end of the auxiliary stationary contact to facilitate subsequent bending operations using the bending wrench.
[0006] The tooling table is equipped with several first bending posts and clamps on its top, and a U-shaped bending component is also provided on the tooling table. The bending wrench, in conjunction with the first bending posts, enables a 90° bend to the auxiliary stationary contact. The clamps press and fix the bent auxiliary stationary contact structure to prevent displacement, which would affect the accuracy of subsequent bending of the auxiliary stationary contact. Simultaneously, the bending wrench, in conjunction with the U-shaped bending component, enables a U-shaped bend to the auxiliary stationary contact.
[0007] A right-angle notch is provided at one corner of the tooling table, and a bending cylinder is longitudinally arranged at the right-angle notch. A vertical plate is provided at the bottom of the tooling table near the right-angle notch, and a first bending post and a clamp are also provided on the outer side of the vertical plate. A second bending post is also provided on the outer side of the vertical plate. By cooperating with the bending cylinder and the bending wrench, a 90° downward bend can be achieved on the auxiliary stationary contact, and by cooperating with the bending wrench and the second bending post, a 90° longitudinal bend can be achieved on the auxiliary stationary contact.
[0008] Furthermore, support columns are fixedly installed at the bottom corners of the tooling table, and mounting plates are fixedly installed at the bottom of the support columns. The support columns provide support for the tooling table, and the mounting plates provide fixed installation for the bending tooling table.
[0009] Furthermore, a fixing plate is provided at the bottom of the tooling table near the L-shaped notch, and a clamping seat is also provided at the bottom of the fixing plate; the limiting component includes a fixing block, a limiting post, and a limiting block. The fixing block is fixedly connected to the tooling table, the limiting post is located on the outside of the fixing block and within the L-shaped notch, and the limiting block is located on the rear side of the fixing block with an arc-shaped outer side. The fixing seat serves to install the clamping seat, thereby pressing and fixing the front end of the auxiliary stationary contact. The limiting post matches the first bending structure of the auxiliary stationary contact, and the limiting block matches the second bending structure of the auxiliary stationary contact, thereby limiting and positioning the front end of the auxiliary stationary contact, so that the unbent structure of the auxiliary stationary contact fits against the top of the tooling table, improving the accuracy of subsequent bending of the auxiliary stationary contact.
[0010] Furthermore, the first bending column includes a bending inner cylinder and a rotating cylinder rotatably sleeved on the outside of the bending inner cylinder. A threaded column is fixedly provided at the bottom of the bending inner cylinder, and the threaded column is threadedly connected to the tooling table. The threaded column facilitates the disassembly and replacement of the first bending column according to the processing requirements of the auxiliary stationary contact. When the bending wrench bends the auxiliary stationary contact, the rotating cylinder effectively reduces friction and indentations on its surface, thus minimizing damage to the auxiliary stationary contact.
[0011] Furthermore, the second bending post is longer than the first bending post, and the structure of the second bending post is the same as that of the first bending post. The purpose is to enable the second bending post to also cooperate with a bending wrench to achieve a 90° bending operation on the auxiliary stationary contact.
[0012] Furthermore, the U-shaped bending component includes a strip plate, a insert plate, and a limiting plate. The strip plate is disposed at the bottom of the tooling table, and the tooling table has an opening that matches the insert plate. The insert plate is disposed at the top of the strip plate and embedded in the opening. The limiting plate is disposed at the top of the insert plate, and the top of the insert plate also has a top shaft insertion hole. The U-shaped bending component, in conjunction with the bending wrench, bends the auxiliary stationary contact. The limiting plate limits the bending of the auxiliary stationary contact, ensuring that the auxiliary stationary contact can form a U-shaped bend.
[0013] Furthermore, the bending wrench includes a bending handle, a limiting insert shaft and a bending shaft disposed at one end of the bending handle. The lower end of the limiting insert shaft extends below the bending handle, and a top shaft is fixedly disposed at its upper end. The limiting insert shaft matches the bending cylinder and the bending inner cylinder, and the top shaft matches the top shaft insertion hole. The limiting insert shaft is inserted into the bending cylinder or the bending inner cylinder, and rotating the bending wrench can achieve a 90° bend of the auxiliary stationary contact; the top shaft is inserted into the top shaft insertion hole, and rotating the bending wrench can achieve a U-shaped bend of the auxiliary stationary contact.
[0014] Furthermore, the upper and lower ends of the bending shaft are respectively rotatably fitted with an upper bending cylinder and a lower bending cylinder, the outer diameter of the upper bending cylinder being larger than the outer diameter of the lower bending cylinder; the upper bending cylinder is used to perform a U-shaped bend on the auxiliary stationary contact, and the lower bending cylinder is used to perform a 90° bend on the auxiliary stationary contact.
[0015] Furthermore, the bottom of the clamp is provided with an arc-shaped groove, and the clamp is bolted to the top of the tooling table for clamping and positioning the auxiliary stationary contact. The arc-shaped groove matches the auxiliary stationary contact so that the auxiliary stationary contact can be pressed and fixed by the action of the clamp.
[0016] The beneficial effects of this utility model through the above technical solution are as follows: This utility model has a reasonable structure and good performance. It replaces the manual bending of auxiliary stationary contacts. The tooling table facilitates bending operations on auxiliary stationary contacts, and can perform multiple 90° bends in different directions as well as U-shaped bends. At the same time, it can ensure the bending accuracy of auxiliary stationary contacts. The operation is simple and improves the efficiency of bending auxiliary stationary contacts.
[0017] The limiting post and limiting block of this utility model are matched with the first bending structure and the second bending structure, respectively. The limiting post and limiting block limit and position the front end of the auxiliary stationary contact, so that the unbent structure of the auxiliary stationary contact fits with the top of the tooling table, so as to facilitate the subsequent bending of the auxiliary stationary contact and improve the bending accuracy of the auxiliary stationary contact.
[0018] This utility model uses a clamp to press and fix the bent auxiliary stationary contact, avoiding the displacement of the auxiliary stationary contact when bending the unbent mechanism of the auxiliary stationary contact with a bending wrench, which would affect the accuracy of subsequent bending of the auxiliary stationary contact. The arc-shaped groove at the bottom of the clamp cooperates with the auxiliary stationary contact to facilitate the clamp to press and fix the auxiliary stationary contact.
[0019] This utility model achieves a 90° bend on the auxiliary stationary contact by cooperating with a bending wrench and a first bending post or a second bending post. Specifically, a limiting insert is installed in the bending cylinder or the inner bending cylinder. When the bending wrench is rotated, the lower bending cylinder of the bending wrench and the bending post work together to achieve a 90° bend on the auxiliary stationary contact.
[0020] The U-shaped bending component of this utility model, in conjunction with the bending wrench, bends the auxiliary stationary contact. The limiting plate limits the bending of the auxiliary stationary contact, ensuring that the auxiliary stationary contact can form a U-shaped bending structure. Specifically, the top shaft is inserted into the top shaft insertion hole. By rotating the bending wrench, the bending upper cylinder and the top shaft work together to achieve the U-shaped bending of the auxiliary stationary contact. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the structure of an auxiliary stationary contact in the prior art; Figure 2 This is a schematic diagram of the structure of an auxiliary stationary contact bending fixture according to this utility model. Figure 1 ; Figure 3 This is a schematic diagram of the structure of an auxiliary stationary contact bending fixture according to this utility model. Figure 2 ; Figure 4 yes Figure 3 Enlarged structural diagram at point A; Figure 5 This is a schematic diagram of the structure of an auxiliary stationary contact bending fixture according to this utility model. Figure 3 ; Figure 6 This is a schematic diagram of the structure of this utility model in use; Figure 7 This is a schematic diagram of the structure of the bending wrench of this utility model. Figure 1 ; Figure 8 This is a schematic diagram of the structure of the bending wrench of this utility model. Figure 2 ; Figure 9 This is a schematic diagram of the structure of the first bent column of this utility model; Figure 10 This is a structural schematic diagram of the U-shaped bending component of this utility model; Figure 11 This is a schematic diagram of the structure of the clamp of this utility model.
[0022] The labels in the attached diagram are as follows: 1 is the tooling platform, 2 is the support column, 3 is the mounting plate, 4 is the L-shaped notch, 5 is the fixing plate, 6 is the fixing block, 7 is the limiting column, 8 is the limiting block, 9 is the first bending column, 901 is the bending inner cylinder, 902 is the threaded column, 903 is the rotating cylinder, 10 is the bending handle, 11 is the limiting insert shaft, 12 is the top shaft, 13 is the bending shaft, 14 is the bending upper cylinder, 15 is the bending lower cylinder, 16 is the U-shaped bending part, 1601 is the strip plate, 1602 is the insert plate, 1603 is the top shaft insertion hole, 1604 is the limiting upright plate, 17 is the clamp, 1701 is the arc groove, 18 is the bending cylinder, 19 is the vertical plate, and 20 is the second bending column. Detailed Implementation
[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments: like Figures 1 to 11 As shown, an auxiliary stationary contact bending fixture includes a fixture plate 1 and a bending wrench for bending the auxiliary stationary contact. One end of the fixture plate 1 has an L-shaped notch 4, within which a limiting notch is formed, and a limiting element is provided at the limiting notch. In this embodiment, the bending wrench rotates to perform a bending operation on the auxiliary stationary contact. The L-shaped notch 4 provides positions for the limiting notch and the limiting element, and also provides a placement position for the front end of the bent auxiliary stationary contact. The limiting element matches the first and second bending structures of the auxiliary stationary contact, limiting and positioning the front end of the auxiliary stationary contact to facilitate subsequent bending operations using the bending wrench, thereby improving the bending accuracy of the auxiliary stationary contact.
[0024] The tooling table 1 is provided with a plurality of first bending posts 9 and clamps 17 on its top, and a U-shaped bending component 16 is also provided on the tooling table 1. In this embodiment, the position and number of the first bending posts 9 and clamps 17 are selected according to the bending processing requirements of the auxiliary stationary contact. Specifically, there are three first bending posts 9 on the top of the tooling table 1, two of which are horizontally spaced and side by side near the L-shaped notch 4. A clamp 17 is installed between the two first bending posts 9. The first bending posts 9 away from the L-shaped notch 4 are used in conjunction with a bending wrench to bend the first bending structure and the second bending structure of the auxiliary stationary contact. After the first bending structure and the second bending structure of the auxiliary stationary contact are limited and positioned by the limiting component, the bending is then performed by... The first bending post 9 near the L-shaped notch 4, in conjunction with the bending wrench, performs a 90° transverse bend on the auxiliary stationary contact, forming the third bending structure. Then, through the first bending post 9 away from the L-shaped notch 4, in conjunction with the bending wrench, the auxiliary stationary contact is subjected to a 90° longitudinal bend, forming the fourth bending structure. After being fixed by the clamp 17, the auxiliary stationary contact is subjected to a 90° transverse bend through the cooperation of another first bending post 9 and the bending wrench, forming the fifth bending structure. Finally, through the cooperation of the U-shaped bending piece 16 and the bending wrench, the auxiliary stationary contact is subjected to a U-shaped bend, forming the sixth bending structure.
[0025] A right-angle notch is provided at one corner of the tooling table 1, and a bending cylinder 18 is longitudinally arranged at the right-angle notch. A vertical plate 19 is provided at the bottom of the tooling table 1 near the right-angle notch. A first bending post 9 and a clamp 17 are also provided on the outer side of the vertical plate 19, and a second bending post 20 is also provided on the outer side of the vertical plate 19. In this embodiment, the auxiliary stationary contact is bent vertically downward by 90° by the bending cylinder 18 and the bending wrench to form a seventh bending structure. Then, the auxiliary stationary contact is bent longitudinally by 90° in the opposite direction by the first bending post 9 on the vertical plate 19 and the bending wrench to form an eighth bending structure. At the same time, the auxiliary stationary contact is bent laterally by 90° in the opposite direction by the second bending post 20 and the bending wrench to form a ninth bending structure, thus completing the bending operation of the auxiliary stationary contact. The diameters of the first bending column 9, the second bending column 20, and the bending cylinder 18 can be selected according to the requirements of the auxiliary stationary contact processing.
[0026] Each bottom corner of the tooling table 1 is fixedly equipped with a support column 2, and a mounting plate 3 is fixedly installed at the bottom of the support column 2. In this embodiment, there are four support columns 2, which support the tooling table 1. The mounting plate 3 is used to fix the bending workbench, and expansion bolts are installed on the mounting plate 3 to fix the mounting plate 3 to the ground, which can effectively prevent the bending tooling table from shaking when bending the auxiliary stationary contact.
[0027] A fixing plate 5 is provided at the bottom of the tooling platform 1 near the L-shaped notch 4, and a clamping seat 17 is also provided at the bottom of the fixing plate 5. The limiting component includes a fixing block 6, a limiting post 7, and a limiting block 8. The fixing block 6 is fixedly connected to the tooling platform 1. The limiting post 7 is located on the outside of the fixing block 6 and inside the L-shaped notch 4. The limiting block 8 is located on the rear side of the fixing block 6 and has an arc-shaped structure on the outside. In this embodiment, one end of the fixing plate 5 extends below the L-shaped notch 4, and the fixing plate 5 provides an installation position for the clamping seat 17, so as to press and fix the front end of the auxiliary stationary contact through the action of the clamping seat 17. The limiting post 7 and the limiting block 8 are respectively matched with the first bending structure and the second bending structure of the auxiliary stationary contact. The limiting post 7 and the limiting block 8 limit and position the front end of the auxiliary stationary contact so that the unbent structure of the auxiliary stationary contact fits with the top of the tooling table 1, so as to facilitate the subsequent bending of the auxiliary stationary contact and improve the bending accuracy of the auxiliary stationary contact. The limiting post 7 with different diameters and the limiting block 8 with different arc diameters can be selected according to the bending processing requirements of the auxiliary stationary contact to ensure that the limiting post 7 and the limiting block 8 can match the first bending structure and the second bending structure of the auxiliary stationary contact respectively.
[0028] The first bending column 9 includes a bending inner cylinder 901 and a rotating cylinder 903 rotatably sleeved on the outside of the bending inner cylinder 901. A threaded column 902 is fixedly provided at the bottom of the bending inner cylinder 901, and the threaded column 902 is threadedly connected to the tooling table 1. In this embodiment, the bending inner cylinder 901 is fixed to the top of the tooling table 1 by the action of the threaded column 902, which is to facilitate the disassembly and replacement of the first bending column 9. The upper end of the bending inner cylinder 901 has a square structure to facilitate the rotation of the threaded column 902. When the bending wrench bends the auxiliary stationary contact, the rotating cylinder 903 can effectively reduce the friction and indentation on the surface of the auxiliary stationary contact, thereby reducing damage to the auxiliary stationary contact.
[0029] The length of the second bending post 20 is greater than the length of the first bending post 9, and the structure of the second bending post 20 is the same as that of the first bending post 9. In this embodiment, the second bending post 20 can also be used with a bending wrench to achieve a 90° bend of the auxiliary stationary contact, while ensuring that the auxiliary stationary contact can be bent a ninth time after the eighth bend, thus meeting the bending requirements of the auxiliary stationary contact.
[0030] The U-shaped bending component 16 includes a strip plate 1601, a insert plate 1602, and a limiting upright plate 1604. The strip plate 1601 is disposed at the bottom of the tooling table 1. The tooling table 1 has an opening that matches the insert plate 1602. The insert plate 1602 is disposed at the top of the strip plate 1601 and is embedded in the opening. The limiting upright plate 1604 is disposed at the top of the insert plate 1602. The top of the insert plate 1602 also has a top shaft insertion hole 1603. In this embodiment, the strip plate 1601 is bolted to the bottom of the tooling table 1 so that the insert plate 1602 can be embedded into the opening. The U-shaped bending piece 16 and the bending wrench work together to bend the auxiliary stationary contact. The limiting plate 1604 limits the bending of the auxiliary stationary contact, ensuring that the auxiliary stationary contact can form a U-shaped bend. When bending the auxiliary stationary contact into a U-shape, the bending point of the U-shape needs to be heated first to make the bending point of the U-shape easier to deform, so that the auxiliary stationary contact can be bent into a U-shape by the bending wrench, reducing the damage to the U-shaped bending point of the auxiliary stationary contact.
[0031] The bending wrench includes a bending handle 10, a limiting insert 11 and a bending shaft 13 disposed at one end of the bending handle 10. The lower end of the limiting insert 11 extends below the bending handle 10, and a top shaft 12 is fixedly disposed at the upper end. The limiting insert 11 matches the bending cylinder 18 and the bending inner cylinder 901, and the top shaft 12 matches the top shaft insertion hole 1603. In this embodiment, when performing a 90° bending operation on the auxiliary stationary contact by rotating the bending wrench, the limiting insert 11 is inserted into the bending cylinder 18 or the bending inner cylinder 901; when performing a U-shaped bending operation on the auxiliary stationary contact by rotating the bending wrench, the top shaft 12 is inserted into the top shaft insertion hole 1603.
[0032] The bending shaft 13 has an upper bending cylinder 14 and a lower bending cylinder 15 rotatably mounted on its upper and lower ends, respectively. The outer diameter of the upper bending cylinder 14 is larger than that of the lower bending cylinder 15. The upper bending cylinder 14 is used to perform a U-shaped bend on the auxiliary stationary contact, and the lower bending cylinder 15 is used to perform a 90° bend on the auxiliary stationary contact. In this embodiment, the upper bending cylinder 14 and the lower bending cylinder 15 with different diameters can be selected according to the bending requirements of the auxiliary stationary contact, thereby meeting the bending requirements of the auxiliary stationary contact. The rotating upper bending cylinder 14 and the lower bending cylinder 15 can effectively reduce friction and indentations on the surface of the auxiliary stationary contact, thus reducing damage to the auxiliary stationary contact.
[0033] The bottom of the clamp 17 is provided with an arc-shaped groove 1701. The clamp 17 is bolted to the top of the tooling table 1 and is used to clamp and position the auxiliary stationary contact. In this embodiment, through the function of the arc-shaped groove 1701, when the auxiliary stationary contact is bent, the clamp 17 can press the auxiliary stationary contact tightly, which facilitates the subsequent bending operation of the auxiliary stationary contact.
[0034] The working principle of this utility model is as follows: First, the lower end of the limiting shaft 11 of the bending wrench is inserted into the bending inner cylinder 901 of the first bending column 9, which is far away from the L-shaped notch 4. Then, the operator can measure the length of the auxiliary stationary contact during the first bend, rotate the bending handle 10, and use the cooperation of the lower bending cylinder 15 and the rotating cylinder 903 to bend the auxiliary stationary contact by 90° to form the first bending structure. Then, the length of the auxiliary stationary contact during the second bend is measured, and the auxiliary stationary contact is adjusted according to the bending method required for the second bend. Position the head, rotate the bending handle 10 again, and use the cooperation of the bending lower cylinder 15 and the rotating cylinder 903 to bend the auxiliary stationary contact by 90° to form a second bending structure; then the front end of the auxiliary stationary contact can be placed at the L-shaped notch 4, so that the first bending structure and the second bending structure of the auxiliary stationary contact are respectively in contact with the limiting post 7 and the limiting block 8, so that the unbent structure of the auxiliary stationary contact is in contact with the top of the tooling table 1, and then the bottom clamp 17 of the fixing plate 5 is used to press and fix the front end of the auxiliary stationary contact.
[0035] Then, the lower end of the limiting shaft 11 of the bending wrench is inserted into the bending inner cylinder 901 of the first bending post 9 near the L-shaped notch 4. The bending handle 10 is rotated, and the bending lower cylinder 15 of the bending handle 10 cooperates with the rotating cylinder 903 to make a 90° transverse bend to form a third bending structure. A clamp 17 is installed between the two first bending posts 9 to press and fix the auxiliary stationary contact. Then, the lower end of the limiting shaft 11 of the bending wrench is inserted again into the bending inner cylinder 901 of the first bending post 9 away from the L-shaped notch 4 to make the auxiliary stationary contact. The bending handle 10 is rotated, and the bending lower cylinder 15 of the bending handle 10 cooperates with the rotating cylinder 903 to make a 90° longitudinal bend to form a fourth bending structure. Then, a clamp 17 is installed again at the position of another first bending post 9 near the top of the tooling table 1 to press and fix the auxiliary stationary contact.
[0036] The lower end of the limiting insert 11 of the bending wrench is inserted into the bending inner cylinder 901 of the last first bending column 9 at the top of the tooling table 1. The bending handle 10 is rotated, and the bending lower cylinder 15 of the bending handle 10 cooperates with the rotating cylinder 903 to bend the auxiliary stationary contact 90° laterally again, forming the fifth bending structure. Then, the auxiliary stationary contact is bent into a U-shape, during which the U-shape bending area needs to be heated. The top shaft 12 of the bending wrench is inserted into the top shaft insertion hole 1603 on the insert plate 1602. The bending handle 10 is rotated, and the bending upper cylinder 14 of the bending handle 10 cooperates with the top shaft 12 to bend the auxiliary stationary contact into a U-shape. The limiting plate 1604 limits the bent auxiliary stationary contact, forming the sixth bending structure. After the auxiliary stationary contact is bent into a U-shape, it is pressed and fixed by the clamp 17.
[0037] Then, the auxiliary stationary contact is bent vertically. Before bending, the auxiliary stationary contact is pressed and fixed by the clamp 17. The lower end of the limiting shaft 11 of the bending wrench is inserted into the bending cylinder 18. The bending handle 10 is rotated, and the lower bending cylinder 15 of the bending handle 10 cooperates with the bending cylinder 18 to bend the auxiliary stationary contact vertically downward by 90°, forming the seventh bending structure. After bending, the auxiliary stationary contact is pressed and fixed by the clamp 17. Then, the lower end of the limiting shaft 11 of the bending wrench is inserted into the inner bending cylinder 901 of the first bending column 9 located at the top of the vertical plate 19. The bending handle 10 is rotated, and the lower bending cylinder 15 of the bending handle 10... In conjunction with the rotating cylinder 903, the auxiliary stationary contact is longitudinally bent in the opposite direction at 90° to form the eighth bending structure. After bending, the auxiliary stationary contact is pressed and fixed by the clamp 17. Finally, the lower end of the limiting shaft 11 of the bending wrench is inserted into the bending inner cylinder 901 of the second bending column 20. The bending handle 10 is rotated, and the bending lower cylinder 15 of the bending handle 10 cooperates with the rotating cylinder 903 to perform a lateral bending of the auxiliary stationary contact in the opposite direction at 90° to form the ninth bending structure, thus completing the bending operation of the auxiliary stationary contact. Finally, each clamp 17 is removed to release the limiting of the auxiliary stationary contact, and the auxiliary stationary contact that has completed the bending operation can be removed.
[0038] The embodiments described above are merely preferred embodiments of the utility model and are not intended to limit the scope of the utility model. Therefore, all equivalent changes or modifications made to the technical solutions described in the scope of the utility model patent application should be included within the scope of the utility model patent application.
Claims
1. An auxiliary stationary contact bending fixture, characterized in that, It includes a tooling table (1) and a bending wrench for bending auxiliary stationary contacts. One end of the tooling table (1) is provided with an L-shaped notch (4). A limit notch is provided in the L-shaped notch (4), and a limit component is provided at the limit notch. The tooling platform (1) is provided with a number of first bending columns (9) and clamps (17) on its top, and a U-shaped bending part (16) is also provided on the tooling platform (1). A right-angle notch is provided at one corner of the tooling platform (1), and a bending cylinder (18) is arranged longitudinally at the right-angle notch; a vertical plate (19) is provided at the bottom of the tooling platform (1) near the right-angle notch, and a first bending column (9) and a clamp (17) are also provided on the outside of the vertical plate (19), and a second bending column (20) is also provided on the outside of the vertical plate (19).
2. The auxiliary stationary contact bending fixture according to claim 1, characterized in that, The tooling platform (1) is fixedly provided with support columns (2) at the bottom corners, and the bottom of the support columns (2) is fixedly provided with mounting plates (3).
3. The auxiliary stationary contact bending fixture according to claim 1, characterized in that, The tooling platform (1) has a fixing plate (5) at the bottom near the L-shaped notch (4), and the bottom of the fixing plate (5) is also provided with a clamp (17); the limiting component includes a fixing block (6), a limiting post (7) and a limiting block (8). The fixing block (6) is fixedly connected to the tooling platform (1). The limiting post (7) is located on the outside of the fixing block (6) and inside the L-shaped notch (4). The limiting block (8) is located on the rear side of the fixing block (6) and has an arc-shaped structure on the outside.
4. The auxiliary stationary contact bending fixture according to claim 1, characterized in that, The first bending column (9) includes a bending inner cylinder (901) and a rotating cylinder (903) rotatably sleeved on the outside of the bending inner cylinder (901). A threaded column (902) is fixedly provided at the bottom of the bending inner cylinder (901), and the threaded column (902) is threadedly connected to the tooling table (1).
5. The auxiliary stationary contact bending fixture according to claim 4, characterized in that, The length of the second bending column (20) is greater than the length of the first bending column (9), and the structure of the second bending column (20) is the same as that of the first bending column (9).
6. The auxiliary stationary contact bending fixture according to claim 4, characterized in that, The U-shaped bending component (16) includes a strip plate (1601), a panel (1602), and a limiting plate (1604). The strip plate (1601) is disposed at the bottom of the tooling table (1). The tooling table (1) has an opening that matches the panel (1602). The panel (1602) is disposed at the top of the strip plate (1601) and embedded in the opening. The limiting plate (1604) is disposed at the top of the panel (1602). The top of the panel (1602) also has a top shaft insertion hole (1603).
7. The auxiliary stationary contact bending fixture according to claim 6, characterized in that, The bending wrench includes a bending handle (10), a limiting insert (11) and a bending shaft (13) disposed at one end of the bending handle (10). The lower end of the limiting insert (11) extends below the bending handle (10) and the upper end is fixedly provided with a top shaft (12). The limiting insert (11) matches the bending cylinder (18) and the bending inner cylinder (901), and the top shaft (12) matches the top shaft insertion hole (1603).
8. The auxiliary stationary contact bending fixture according to claim 7, characterized in that, The bending shaft (13) is rotatably fitted with an upper bending cylinder (14) and a lower bending cylinder (15) at its upper and lower ends respectively. The outer diameter of the upper bending cylinder (14) is larger than the outer diameter of the lower bending cylinder (15). The upper bending cylinder (14) is used to perform U-shaped bending on the auxiliary stationary contact, and the lower bending cylinder (15) is used to perform 90° bending on the auxiliary stationary contact.
9. The auxiliary stationary contact bending fixture according to claim 1, characterized in that, The bottom of the clamp (17) is provided with an arc groove (1701), and the clamp (17) is bolted to the top of the tooling table (1) for clamping and positioning the auxiliary stationary contact.