Contact processing tool

Abstract

The utility model discloses a contact processing tool, which belongs to the technical field of contact processing, and comprises a bottom plate, the top of the bottom plate is fixedly connected with a fixed plate, cavities are arranged in the fixed plate and the bottom plate, the top of the fixed plate is provided with a sliding chute, the inner wall of the sliding chute is in sliding connection with the outer wall of a forming sliding block, and the inner wall of the sliding chute is in sliding connection with the outer wall of the forming sliding block. The inner wall of the forming sliding block is movably connected with an ejection sliding rod, the inner wall of the fixing plate is fixedly connected with a base plate, and the bottom of the forming sliding block is connected with the top end of a first spring. According to the contact point machining tool, by arranging the forming sliding block, the ejection sliding rod, the base plate, the first spring and the upper female die, when the tool is used, a contact point can be rapidly machined, meanwhile, the forming sliding block and the ejection sliding rod are guided, the size precision of contact point machining can be guaranteed, and therefore machining defective products are reduced, and the machining efficiency is improved. And meanwhile, the finish degree of the head of the contact is ensured by utilizing the finish degree of a tool machining surface, so that the contact machining quality is ensured.

Description

Technical Field

[0001] This utility model belongs to the field of contact processing technology, specifically a contact processing tooling. Background Technology

[0002] Contacts are commonly used parts in electromechanical components, widely applied in electrical contact applications such as switches and relays, and are mostly made of silver or silver-cadmium alloy. Because contacts are the electrical contact parts of switches or relays, when the switch or relay operates, the contacts momentarily come into contact, generating a discharge at a microscopic level, increasing contact resistance. Therefore, high dimensional accuracy and a high degree of surface finish on the rounded contact parts are required to ensure accurate switch or relay operation and low contact resistance. Currently, contacts are generally machined using small machine tools or stamped from silver wire or silver-cadmium alloy wire. However, the stamping process makes it difficult to guarantee the dimensional accuracy and shape of the contacts, as well as the surface finish of the contact heads. Utility Model Content

[0003] In order to overcome the above-mentioned defects of the prior art, this utility model provides a contact processing fixture, which solves the problem that the existing contact processing is generally carried out by small machine tools or stamping with silver wire or silver-cadmium alloy wire. However, it is difficult to guarantee the dimensional accuracy and shape of the contact during the stamping process, and it is also difficult to guarantee the smoothness of the contact head.

[0004] The technical solution of this utility model is as follows: A contact processing fixture includes a base plate, a fixing plate fixedly connected to the top of the base plate, cavities provided inside the fixing plate and the base plate, a sliding groove opened on the top of the fixing plate, the inner wall of the sliding groove being slidably connected to the outer wall of the forming slider, an ejector sliding rod being movably connected to the inner wall of the forming slider, a pad fixedly connected to the inner wall of the fixing plate, the bottom of the forming slider being connected to the top of a first spring, the bottom end of the first spring being connected to the top of the pad, and an upper die provided on the top of the forming slider.

[0005] As a further embodiment of this utility model: the bottom of the base plate is fixedly connected to the top of the tabletop, and four support feet are fixedly connected to the bottom of the tabletop, with the four support feet distributed at the four corners of the bottom of the base plate, and anti-slip pads are provided on the bottom of the support feet.

[0006] As a further embodiment of this utility model: the top of the upper die is fixedly connected to the bottom of one end of the connector, the bottom of the other end of the connector is connected to the output end of the press, the outer wall of the press is fixedly connected to the inner wall of the mounting base, and the bottom of the mounting base is fixedly connected to the top of the table panel.

[0007] As a further embodiment of this utility model: one side of the forming slider is fixedly connected to the side corresponding to the connecting plate, and sliding holes are provided inside the pad, the fixed plate and the bottom plate, and the three sliding holes are interconnected. The inner wall of the sliding hole is movably connected to the outer wall of the guide pin.

[0008] As a further embodiment of this utility model: a tray is fixedly connected to the outer wall of the guide pin, the bottom of the tray is connected to the top of the second spring, the bottom of the second spring is connected to the top of the pad, and the top of the guide pin is in contact with the bottom of the connecting plate.

[0009] As a further embodiment of this utility model: the top end of the ejector slide rod is provided with a placement hole, and the outer wall of the forming slider and the inner wall of the upper die are both polished.

[0010] As a further embodiment of this utility model: the bottom end of the ejector slide rod passes through the pad and the fixing plate and extends into the interior of the base plate; the inner wall of the base plate is fitted with a rotating shaft; the outer wall of the rotating shaft is fixedly connected to the inner wall of the pry bar; and the pry bar is located directly below the ejector slide rod.

[0011] As a further embodiment of this utility model: both the interior of the fixing plate and the interior of the base plate are provided with mounting holes, and the two mounting holes are connected to each other. The fixing plate and the base plate are connected to fixing screws through the mounting holes.

[0012] The working principle and beneficial effects of this utility model are as follows:

[0013] 1. This contact processing fixture, by setting up a slide groove, forming slide block, ejector slide rod, pad, first spring, and upper die, allows the upper die to contact the forming slide block during use. This causes the forming slide block to compress the first spring until its bottom surface collides with the pad, at which point it stops descending. Then, the ejector slide rod ejects the blank material relative to the forming slide block. At this point, the cavity formed by the forming slide block, upper die, and ejector slide rod compresses the blank material into shape using the force of the ejector slide rod. This allows the fixture to quickly process contacts during use, while simultaneously guiding the forming slide block and ejector slide rod, ensuring dimensional accuracy in contact processing and reducing defective products. Furthermore, the smoothness of the fixture's processing surface ensures the smoothness of the contact head, thereby guaranteeing the quality of contact processing. Attached Figure Description

[0014] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0015] Figure 1 is a three-dimensional structural schematic diagram of this utility model;

[0016] Figure 2 is a three-dimensional cross-sectional structural diagram of the fixing plate of this utility model;

[0017] Figure 3 is a cross-sectional view of the fixing plate of this utility model from the front.

[0018] Figure 4 is a three-dimensional structural schematic diagram of the stamping machine of this utility model;

[0019] In the diagram: 1. Base plate; 2. Fixing plate; 3. Slide groove; 4. Forming slider; 5. Ejection slide rod; 6. Pad plate; 7. First spring; 8. Upper die; 9. Tabletop; 10. Support leg; 11. Connecting piece; 12. Press; 13. Mounting base; 14. Sliding hole; 15. Guide pin; 16. Tray; 17. Second spring; 18. Connecting plate; 19. Rotating shaft; 20. Pry bar; 21. Mounting hole. Detailed Implementation

[0020] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. 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 of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0021] As shown in Figures 1-4, this utility model provides a technical solution: a contact processing fixture, including a base plate 1, a fixing plate 2 fixedly connected to the top of the base plate 1, cavities provided inside both the fixing plate 2 and the base plate 1, a groove 3 opened on the top of the fixing plate 2, the inner wall of the groove 3 slidably connected to the outer wall of the forming slider 4, an ejector slide rod 5 movably connected to the inner wall of the forming slider 4, a pad 6 fixedly connected to the inner wall of the fixing plate 2, the bottom of the forming slider 4 connected to the top of the first spring 7, the bottom end of the first spring 7 connected to the top of the pad 6, and an upper concave mold 8 provided on the top of the forming slider 4. By setting the groove 3, the forming slider 4, the ejector slide rod 5, the pad 6, the first spring 7, and the upper concave mold 8, in use, after the upper concave mold 8 contacts the forming slider 4, the forming slider 4 compresses the first spring 7 until its bottom surface collides with the pad 6, then stops descending, and then the ejector slide rod 5 is ejected. Compared to the forming slider 4 ejecting the blank, the cavity formed by the forming slider 4, the upper die 8, and the ejector slide 5 compresses the blank into shape using the force of the ejector slide 5. This allows the tooling to quickly process the contacts during use, while guiding the forming slider 4 and the ejector slide 5 to ensure the dimensional accuracy of the contact processing, thereby reducing defective products. The smoothness of the tooling's processing surface ensures the smoothness of the contact head, thus guaranteeing the quality of the contact processing. The bottom of the base plate 1 is fixedly connected to the top of the table panel 9. Four support feet 10 are fixedly connected to the bottom of the table panel 9, distributed at the four corners of the bottom of the base plate 1. Anti-slip pads are provided on the bottom of the support feet 10, providing support and ensuring the stability of the contact processing. The top of the upper die 8 is fixedly connected to the bottom of one end of the connector 11, and the bottom of the other end of the connector 11 is connected to the stamping machine 12. The output end is connected to the platen 9. The outer wall of the press 12 is fixedly connected to the inner wall of the mounting base 13. The bottom of the mounting base 13 is fixedly connected to the top of the table panel 9. One side of the forming slider 4 is fixedly connected to the corresponding side of the connecting plate 18. Sliding holes 14 are provided inside the pad 6, the fixed plate 2, and the base plate 1, and the three sliding holes 14 are interconnected. The inner wall of the sliding hole 14 is movably connected to the outer wall of the guide pin 15. A tray 16 is fixedly connected to the outer wall of the guide pin 15. The bottom of the tray 16 is connected to the top of the second spring 17. The bottom of the second spring 17 is connected to the top of the pad 6. The top of the guide pin 15 contacts the bottom of the connecting plate 18. By setting the guide pin 15 and the second spring 17, the forming slider 4 can be guided during its movement, thereby preventing the forming slider 4 from deviating during its movement.To ensure dimensional accuracy in subsequent contact processing, the top of the ejector slide 5 has a placement hole. The outer wall of the forming slider 4 and the inner wall of the upper die 8 are polished. The bottom end of the ejector slide 5 passes through the pad 6 and the fixing plate 2 and extends into the interior of the base plate 1. A rotating shaft 19 is engaged with the inner wall of the base plate 1. The outer wall of the rotating shaft 19 is fixedly connected to the inner wall of the pry bar 20. The pry bar 20 is located directly below the ejector slide 5. By setting the pry bar 20 and the rotating shaft 19, the pry bar 20 is pried, causing it to rotate around the rotating shaft 19 and compressing the first spring 7, thus raising the ejector slide 5 and ejecting the formed contact. This facilitates the removal of the processed contact and makes it easier to unload the contact. Mounting holes 21 are provided inside both the fixing plate 2 and the base plate 1, and the two mounting holes 21 are connected. The fixing plate 2 and the base plate 1 are connected to fixing screws through the mounting holes 21.

[0022] The working principle of this utility model is as follows: The blank material before contact molding is placed into the placement hole at the top of the ejector slide 5. Then, the press 12 is started, causing the connecting piece 11 to descend. The connecting piece 11 causes the upper die 8 to descend. After the upper die 8 contacts the forming slider 4, the forming slider 4 compresses the first spring 7 and, through the connecting plate 18, presses the guide pin 15, causing the second spring 17 to contract and descend along the guide pin 15 until its bottom surface contacts the pad 6. Then, the descent stops. Next, the ejector slide 5 ejects the blank material relative to the forming slider 4. At this time, the cavity formed by the forming slider 4, the upper die 8, and the ejector slide 5 compresses the blank material into shape under the force of the ejector slide 5. Then, the press 12 drives the upper die 8 to move upward, while the first spring 7 and the second spring 17 reset. Then, the pry bar 20 is pried to rotate around the rotating shaft 19, compressing the first spring 7 and causing the ejector slide 5 to... The upward movement pushes out the formed contact point.

[0023] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A contact processing fixture, comprising a base plate (1), characterized in that: A fixing plate (2) is fixedly connected to the top of the base plate (1). Both the interior of the fixing plate (2) and the interior of the base plate (1) are provided with cavities. A sliding groove (3) is provided on the top of the fixing plate (2). The inner wall of the sliding groove (3) is slidably connected to the outer wall of the forming slider (4). An ejector rod (5) is movably connected to the inner wall of the forming slider (4). A pad (6) is fixedly connected to the inner wall of the fixing plate (2). The bottom of the forming slider (4) is connected to the top of the first spring (7). The bottom end of the first spring (7) is connected to the top of the pad (6). An upper die (8) is provided on the top of the forming slider (4).

2. The contact processing fixture according to claim 1, characterized in that: The bottom of the base plate (1) is fixedly connected to the top of the tabletop (9). The bottom of the tabletop (9) is fixedly connected to four support feet (10), and the four support feet (10) are distributed at the four corners of the bottom of the base plate (1). The bottom of the support feet (10) is provided with anti-slip pads.

3. The contact processing fixture according to claim 2, characterized in that: The top of the upper die (8) is fixedly connected to the bottom of one end of the connector (11), the bottom of the other end of the connector (11) is connected to the output end of the press (12), the outer wall of the press (12) is fixedly connected to the inner wall of the mounting base (13), and the bottom of the mounting base (13) is fixedly connected to the top of the table panel (9).

4. The contact processing fixture according to claim 1, characterized in that: One side of the forming slider (4) is fixedly connected to the side corresponding to the connecting plate (18). The inside of the pad (6), the inside of the fixing plate (2) and the inside of the bottom plate (1) are all provided with sliding holes (14), and the three sliding holes (14) are interconnected. The inner wall of the sliding hole (14) is movably connected to the outer wall of the guide pin (15).

5. The contact processing fixture according to claim 4, characterized in that: The outer wall of the guide pin (15) is fixedly connected to a tray (16), the bottom of the tray (16) is connected to the top of the second spring (17), the bottom of the second spring (17) is connected to the top of the pad (6), and the top of the guide pin (15) is in contact with the bottom of the connecting plate (18).

6. The contact processing fixture according to claim 1, characterized in that: The top of the ejector slide (5) is provided with a placement hole, and the outer wall of the forming slider (4) and the inner wall of the upper die (8) are both polished.

7. The contact processing fixture according to claim 1, characterized in that: The bottom end of the ejector slide (5) passes through the pad (6) and the fixing plate (2) and extends into the interior of the base plate (1). The inner wall of the base plate (1) is fitted with a rotating shaft (19). The outer wall of the rotating shaft (19) is fixedly connected to the inner wall of the pry bar (20). The pry bar (20) is located directly below the ejector slide (5).

8. The contact processing fixture according to claim 1, characterized in that: The fixing plate (2) and the base plate (1) are both provided with mounting holes (21), and the two mounting holes (21) are connected. The fixing plate (2) and the base plate (1) are connected to the fixing screws through the mounting holes (21).

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