Contact body crown spring crimping device

Abstract

The utility model provides a contact body crown spring crimping device. The first sleeve is provided with a first sleeve through hole in the axial direction of the first sleeve. The first sleeve through hole at least comprises a first aperture section and a second aperture section adjacent to the first aperture section. The first aperture section is used for accommodating a crown spring; the second aperture section is of a reducing structure from one side close to the first aperture section to one side far away from the first aperture section; the push rod can be inserted into the first aperture section, makes contact with the crown spring and pushes the crown spring to one end of the second aperture section. According to the contact body crown spring crimping device, the crown spring press-fitting stability can be improved, the press-fitting efficiency is improved, the loss in the press-fitting process is greatly reduced, the cost is saved, and the yield is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of crown spring installation, in particular to a contact body crown spring crimping device. Background Art

[0002] Crown springs are common electrical signal transmission contacts, and the stability of their mounting structure determines the stability of signal transmission.

[0003] Taking its application in the field of rail transit technology as an example, the demand for electrical signal transmission in railway freight vehicles is increasing. Electrical couplers use crown spring contactors to transmit signals, and with the increase in control requirements and the increase in signal types, the number of contacts used to transmit signals has increased significantly. The size of the contact itself is becoming more and more refined, and the commonly used pin-and-socket contact mainly maintains a close fit with the pin through the crown spring inside the socket, thereby ensuring the stability of signal transmission. Although the crown spring has a certain elastic deformation capacity, due to its small size and the traditional installation method mainly using manual pressing, the pressing force and deformation amount are uncontrollable, resulting in high losses during the pressing process and unstable quality of the socket connector after pressing. Utility Model Content

[0004] The utility model aims to solve one of the above technical problems and proposes a contact body crown spring crimping device to facilitate the installation of the contact body crown spring crimping, reduce the pressing loss, and ensure the stability of the crown spring contact body signal transmission.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A contact body crown spring crimping device, comprising:

[0007] The first sleeve has a first sleeve through hole along its axial direction, and the first sleeve through hole at least includes a first aperture section and a second aperture section adjacent to the first aperture section; the first aperture section is used to accommodate the crown spring; the second aperture section is a diameter-reducing structure from a side close to the first aperture section to a side away from the first aperture section;

[0008] Push rod: can be inserted into the first aperture section, contact the crown spring, and push the crown spring toward one end of the second aperture section.

[0009] In some embodiments of the present invention, the first aperture section has a uniform inner diameter.

[0010] In some embodiments of the present invention, the first sleeve further includes a third aperture segment adjacent to the second aperture segment and spaced apart from the first aperture segment, and the inner diameter of the third aperture segment is larger than the inner diameter of the second aperture segment and the adjacent end thereof.

[0011] In some embodiments of the utility model, the push rod includes a first end and a second end opposite to each other, the second end being the mating end with the crown spring; the second end is provided with an elastic push claw, the outer diameter of the elastic push claw is smaller than the outer diameter of the first aperture segment so that it can be inserted into the first aperture segment, and the elastic push claw can shrink in the radial direction.

[0012] In some embodiments of the utility model, an extension rod portion is formed at the second end, and when in use, the extension rod portion can extend to the inside of the crown spring.

[0013] In some embodiments of the utility model, it further includes a second sleeve, which has a second sleeve through hole along its axial direction. The second sleeve is sleeved on one side of the first aperture section of the first sleeve, and the second sleeve through hole is opposite to the first sleeve through hole; the push rod penetrates into the first sleeve through hole through the second sleeve through hole and contacts with the crown spring.

[0014] In some embodiments of the present invention, the second sleeve includes a first aperture section and a second aperture section, the aperture of the first aperture section is smaller than the aperture of the second aperture section, and the aperture of the second aperture section matches the outer diameter of the first sleeve.

[0015] In some embodiments of the utility model, a top cover is further included, which is installed on the part of the push rod located outside the first sleeve.

[0016] In some embodiments of the utility model, the top cover is threadedly connected to the push rod.

[0017] In some embodiments of the present invention, the push rod further includes an elastic member disposed between the top cover and the second sleeve.

[0018] Compared with the prior art, the contact body crown spring crimping device provided by the utility model has the following beneficial effects:

[0019] 1. The crown spring is pressed into the socket connector through a mechanical mechanism, and the deformation and pressing force of the crown spring are guaranteed to be constant, which can improve the stability of the crown spring press-fitting, improve the press-fitting efficiency, greatly reduce the loss in the press-fitting process, save costs, and improve the yield rate.

[0020] 2. The deformation and force value during the press-fitting process are controllable. The press-fitting push rod has automatic reset function and press-fitting limit function, which can improve the press-fitting efficiency and ensure the press-fitting quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0022] Figure 1 It is a schematic diagram of the structure of the contact body crown spring crimping device;

[0023] Figure 2 It is a schematic diagram of the cross-sectional structure of the contact body crown spring crimping device;

[0024] Figure 3a This is a schematic diagram of the first embodiment of the first sleeve;

[0025] Figure 3b It is a schematic diagram of the second implementation structure of the first sleeve;

[0026] Figure 4a Schematic diagram of the push rod structure;

[0027] Figure 4b It is a schematic diagram of the elastic push claw structure;

[0028] Figure 5 It is a schematic diagram of the second embodiment of the contact body crown spring crimping device;

[0029] Figure 6 is a schematic diagram of the structure of the second sleeve;

[0030] Figure 7a It is a schematic diagram of the structure of the jack connector;

[0031] Figure 7b It is a schematic diagram of the cross-sectional structure of the jack connector;

[0032] Figure 8 It is a schematic diagram of the crown spring structure;

[0033] 1- Crown spring;

[0034] 2-jack connector, 201-mounting slot, 202-port step;

[0035] 3-first sleeve, 301-first aperture section, 302-second aperture section, 303-third aperture section;

[0036] 4-push rod, 401-elastic push claw, 402-extension rod;

[0037] 5-second sleeve, 501-first aperture section, 502-second aperture section;

[0038] 6- Top cover;

[0039] 7- Elastic parts. DETAILED DESCRIPTION

[0040] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0041] In the description of the present application, it should be noted that the fixed connection described in the present application can be a detachable fixed connection or an integrated fixed connection; the indication of the orientation or positional relationship is based on the positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0042] The terms "first" and "second" are used for descriptive purposes only and are not intended to imply relative importance.

[0043] The contact body crown spring crimping device provided by the utility model is used for installing the crown spring 1 into the socket connector 2.

[0044] Structural reference of jack connector 2 Figure 7a and Figure 7b The main body is columnar, and a mounting groove 201 is provided at one end. The main body section of the mounting groove 201 has a uniform inner diameter, and the diameter at the notch of the mounting groove 201 is smaller than the inner diameter of the main body section, forming a step structure 202. The structure of the crown spring 1 is shown in FIG. Figure 8 , the crown spring 1 can be pressed into the installation groove 201. After the crown spring 1 enters the installation groove 201, it is restricted by the step structure 202 and will not fall out of the installation groove 201.

[0045] In order to solve the above problems, the utility model provides a contact body crown spring crimping device, the structure of which refers to Figure 1 and Figure 2 .

[0046] The structure of the first sleeve 3 refers to Figure 3a and Figure 3b , having a first sleeve through hole along its axial direction, the first sleeve through hole at least including a first aperture section 301 and a second aperture section 302; the first aperture section 301 is used to accommodate the crown spring 1, and in a preferred implementation structure, the first aperture section 301 has a uniform diameter; the second aperture section 302 has a reducing structure from a side close to the first aperture section 301 to a side away from the first aperture section 301, that is, the aperture of the second aperture section 302 gradually becomes smaller.

[0047] Structural reference of push rod 4 Figure 4a, can be inserted into the first aperture section 301 and push the crown spring 1 toward one end of the second aperture section 302.

[0048] In a preferred embodiment, the diameter of the end opening of the second aperture section 302 matches the diameter of the slot of the installation slot 201 , and the two can be equal. In this way, it can be ensured that the crown spring 1 is smoothly pressed into the socket connector 2 through the second aperture section 302 .

[0049] In order to facilitate the cooperation with the jack connector 2, the first sleeve 3 also includes a third aperture section 303 adjacent to the second aperture section 302 and spaced from the first aperture section 301, and the inner diameter of the third aperture section 303 is larger than the inner diameter of the second aperture section 302 and the adjacent end thereof. The inner diameter of the third aperture section 303 is adapted to the outer diameter of the jack connector 2, so that the first sleeve 3 can be sleeved on the jack connector 2. In a preferred embodiment, the jack connector 2 is a cylinder, and the first aperture section 301, the second aperture section 302 and the third aperture section 303 are all cylindrical holes.

[0050] From the first end of the first sleeve 3 to the second end, the first sleeve 3 sequentially includes a first aperture section 301, a second aperture section 302 and a third aperture section 303. In the use state, the third aperture section 303 is sleeved on the outside of the jack connector 2, and one end of the second aperture section 302 of the first sleeve 3 is opposite to the mounting groove 201 of the jack connector 2. The push rod 4 is inserted into the first aperture section 301 to push the crown spring 1. The crown spring 1 shrinks in the process of entering the second aperture section 302 and enters the inside of the jack connector mounting groove 201. When the crown spring 1 completely enters the inside of the jack connector mounting groove 201, it restores its initial diameter under its own elastic restoring force, and both ends are tightly fitted with the inner surface of the jack connector mounting groove 201. Under the limitation of the step structure 202 at the end of the jack connector 2, the crown spring 1 will not fall out.

[0051] Along the length direction of the push rod 4, the push rod 4 includes a first end and a second end opposite to each other. The second end is an end inserted into the first sleeve 3 and is the end that matches the crown spring 1. In order to facilitate the action on the crown spring 1, the second end is provided with an elastic push claw 401. The structure is referenced Figure 4b The outer diameter of the elastic push claw 401 is smaller than the outer diameter of the first aperture section 301 so that it can be inserted into the first aperture section 301, and the elastic push claw 401 can shrink in the radial direction.

[0052] The elastic push claw 401 directly acts on the crown spring 1, pushing the crown spring 1 to move into the installation groove 201. When the elastic push claw 401 moves to the second aperture section 302 in the first sleeve 3, the front end of the elastic push claw 401 will shrink due to the change in aperture, continuously pushing the crown spring 1 to move.

[0053] In some embodiments of the utility model, an extension rod 402 is formed at the second end, and in the use state, the extension rod 402 can extend into the inside of the crown spring 1. The extension rod 402 has a limiting function. When the crown spring 1 is pressed into the installation groove 201, the top of the extension rod 402 just supports the bottom of the installation groove 201 to avoid further pressing down on the crown spring 1 and causing damage to the crown spring 1.

[0054] In some embodiments of the present invention, a second sleeve 5 is further included, the structure of which is referred to as Figure 5 , has a second sleeve through hole along its axial direction, the second sleeve 5 is sleeved on one side of the first aperture section 301 of the first sleeve, and the second sleeve through hole is opposite to the first sleeve through hole; the push rod penetrates into the first sleeve through hole through the second sleeve through hole and contacts with the crown spring 1.

[0055] In some embodiments of the present invention, the second sleeve 5 includes a first aperture section 501 and a second aperture section 502. The aperture of the first aperture section 501 is smaller than the aperture of the second aperture section 502. The aperture of the second aperture section 502 matches the outer diameter of the first sleeve 3. The position where the first aperture section 501 and the second aperture section 502 intersect forms a step structure, and the first sleeve 3 is stuck at the position of the step structure.

[0056] In some embodiments of the utility model, a top cover 6 is further included, which is installed on the part of the push rod 4 located outside the first sleeve 3. The top cover 6 is threadedly connected to the push rod 4 for easy disassembly. An elastic member 7 is arranged between the top cover 6 and the second sleeve 5. After the top cover 6 is installed on the push rod 4, the outer edge of the top cover 6 extends to the outside of the outer wall of the push rod 4. In the process of pressing the push rod 4, the top cover 5 acts on the elastic member 7.

[0057] As mentioned above Figure 3a and Figure 3b As shown, the difference between the two implementation structures of the first sleeve 3 is that the lengths of the first sleeve 3 are different. Figure 3a Suitable for press-fitting device with elastic member 7, structure reference Figure 1 and Figure 2 , Figure 3b Suitable for press-fitting device without elastic member 7, structure reference Figure 6 In the press-fitting device with the elastic member 7, the crown spring 1 is placed from the upper part of the first sleeve 3 during use, and the elastic member 7 is compressed during the press-fitting push rod 4. After the crown spring 1 is pushed in, the push rod 4 automatically resets. On the contrary, in the press-fitting device without the elastic member 7, the crown spring 1 is placed from the upper part of the first sleeve 3 during use, and after the press-fitting push rod 4 is pressed in, the press-fitting push rod 4 must be manually pulled out before the press-fitting process of the next crown spring 1 can be carried out.

[0058] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A contact body crown spring crimping device, characterized in that: include: The first sleeve has a first sleeve through hole along its axial direction, and the first sleeve through hole at least includes a first aperture section and a second aperture section adjacent to the first aperture section; the first aperture section is used to accommodate the crown spring; the second aperture section is a diameter-reducing structure from a side close to the first aperture section to a side away from the first aperture section; Push rod: can be inserted into the first aperture section, contact the crown spring, and push the crown spring toward one end of the second aperture section.

2. The contact body crown spring crimping device according to claim 1, characterized in that: The first aperture section has a uniform inner diameter.

3. The contact body crown spring crimping device according to claim 1, characterized in that: The first sleeve further includes a third aperture section adjacent to the second aperture section and spaced apart from the first aperture section, wherein the inner diameter of the third aperture section is larger than the inner diameter of the second aperture section adjacent to the end thereof.

4. The contact body crown spring crimping device according to claim 1, characterized in that: The push rod includes a first end and a second end opposite to each other, the second end being the mating end with the crown spring; the second end is provided with an elastic push claw, the outer diameter of the elastic push claw is smaller than the outer diameter of the first aperture segment so that it can be inserted into the first aperture segment, and the elastic push claw can shrink in the radial direction.

5. The contact body crown spring crimping device according to claim 1 or 4, characterized in that: The push rod includes a first end and a second end opposite to each other, wherein the second end is a mating end with the crown spring; an extension rod portion is formed on the second end, and in a use state, the extension rod portion can extend into the interior of the crown spring.

6. The contact body crown spring crimping device according to claim 1, characterized in that: It further includes a second sleeve having a second sleeve through hole along its axial direction, the second sleeve is sleeved on one side of the first aperture section of the first sleeve, and the second sleeve through hole is opposite to the first sleeve through hole; the push rod penetrates into the first sleeve through hole through the second sleeve through hole and contacts with the crown spring.

7. The contact body crown spring crimping device according to claim 6, characterized in that: The second sleeve includes a first aperture section and a second aperture section, the aperture of the first aperture section is smaller than the aperture of the second aperture section, and the aperture of the second aperture section matches the outer diameter of the first sleeve.

8. The contact body crown spring crimping device according to claim 1 or 6, characterized in that: It further includes a top cover, which is installed on the part of the push rod located outside the first sleeve.

9. The contact body crown spring crimping device according to claim 8, characterized in that: The top cover is threadedly connected to the push rod.

10. The contact body crown spring crimping device according to claim 8 or 9, characterized in that: The push rod further includes an elastic member disposed between the top cover and the second sleeve.

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