Local annealing device for micro-strip of central contact element of electric connector

Abstract

The utility model relates to the field of connector processing equipment, in particular to a micro-strip local annealing device for a central contact element of an electric connector, which comprises a welding tool, an annealing tool, a cyclic wave adjusting welding machine, a high-frequency generator and a time relay, the welding installation structure and the annealing fixing structure are oppositely arranged along the length axis of the bottom plate, the cyclic wave adjusting welding machine is fixed to the welding installation structure, the annealing tool comprises a base and a cover plate, the base is connected with the annealing fixing structure, the base is of a box-shaped structure with an opening in the top, and the cover plate is located at the opening of the base. According to the utility model, the diversity of micro-strip annealing of the central contact element during annealing can be improved; the defect of non-uniform local heating during annealing of the central contact piece is overcome, and the defect of poor consistency during local annealing of the central contact piece is overcome; the production cost can be reduced, and the production efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the field of connector processing equipment, in particular to a microstrip local annealing device for a central contact of an electric connector. Background Art

[0002] The annealing process of electrical connectors mainly involves annealing the contacts in the connectors to improve their mechanical and electrical properties, thereby improving their reliability, durability and stability. At the same time, annealing can also improve the quality of the metal surface and improve the wear resistance and corrosion resistance of the contacts. In actual operation, annealing should be carried out according to the material, specifications and process requirements of the electrical connector contacts, and attention should be paid to controlling parameters such as temperature, time and atmosphere to ensure the best treatment effect.

[0003] At present, most of the existing local annealing devices are only suitable for overall heat treatment of larger parts, but not for local heat treatment of pinhole microstrips. Even if some high-frequency heat treatment devices can perform heat treatment on pinhole microstrips, there are problems such as uneven local heat treatment and easy loss of strength of parts that do not require heat treatment. In addition, during batch heat treatment, there are also problems such as low processing efficiency, inconsistent heat treatment quality, and poor heat treatment consistency. Utility Model Content

[0004] In view of the problem in the prior art that local annealing cannot be performed according to the size of the microstrip of the center contact of the electrical connector, the utility model provides a local annealing device for the microstrip of the center contact of the electrical connector, which can improve the diversity of the annealing of the microstrip of the center contact during annealing; improve the disadvantage of uneven local heating during annealing of the center contact, and ensure the disadvantage of poor consistency during local annealing of the center contact; help to reduce production costs and improve production efficiency.

[0005] The utility model is realized through the following technical solutions:

[0006] A local annealing device for a microstrip central contact of an electric connector comprises a welding tool, an annealing tool, a frequency regulating welding machine, a high frequency generator and a time relay. The welding tool comprises a bottom plate, a welding installation structure and an annealing fixing structure. The welding installation structure and the annealing fixing structure are arranged relatively along the length axis of the bottom plate. The frequency regulating welding machine is fixed on the welding installation structure. The annealing tool comprises a base and a cover plate. The base is connected to the annealing fixing structure. The base is a box-shaped structure with an opening at the top. The cover plate is located at the opening of the base. The output end of the high frequency generator and the output end of the time relay are both connected to the control end of the frequency regulating welding machine. During annealing, the connector contact is fixed on the cover plate, cooling liquid is injected into the base, and the induction coil of the frequency regulating welding machine is located above the cover plate.

[0007] Preferably, the welding installation structure includes a lifting plate and a driving screw, the frequency-regulated welding machine is arranged on the lifting plate, one end of the driving screw is rotatably connected to the base plate, and the other end passes through and extends out of the lifting plate and is threadedly connected to the lifting plate.

[0008] Preferably, a positioning groove is provided on the bottom plate, the rotating end of the driving screw is located in the positioning groove, and the length axis of the positioning groove is perpendicular to the length axis of the bottom plate.

[0009] Preferably, a plurality of guide posts are provided on the lifting plate, and the guide posts are arranged along the edge of the lifting plate.

[0010] Preferably, a guide groove is further provided on the lifting plate, the bottom of the frequency-adjustable welding machine is slidably connected to the guide groove, and the length axis of the guide groove is parallel to the length axis of the bottom plate.

[0011] Preferably, the annealing fixing structure includes a first slide plate and a second slide plate, the bottom of the first slide plate is connected to the bottom plate, the second slide plate is connected to the bottom plate of the first slide plate, and the base is slidably connected to the top of the second slide plate.

[0012] Preferably, a slide groove is provided on the top of the second slide plate, the length axis of the slide groove is parallel to the length axis of the bottom plate, and a sliding block cooperating with the slide groove is provided at the bottom of the base, and the sliding block slides along the length axis of the slide groove.

[0013] Preferably, a limit plate is provided at one end of the slide groove close to the frequency regulating welding machine, and the limit plate is connected to the second slide plate.

[0014] Preferably, the high frequency generator includes an oscillator and an amplifier, the output end of the oscillator is connected to the input end of the amplifier, and the output end of the amplifier is connected to the control end of the frequency regulation welding machine.

[0015] Preferably, the cooling liquid is water.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] The utility model provides a local annealing device for the microstrip of the center contact of an electric connector, which can improve the quality and efficiency of the annealing of the microstrip of the center contact of the electric connector by setting an annealing tool. When in use, the base is filled with cooling liquid to cool the center contact except the microstrip part, and the cover plate is used to fix the center contact. When the center contact is fixed on the annealing tool, the microstrip part of the center contact of the electric connector is heated to an appropriate temperature and maintained for a certain period of time, so that the internal structure of the metal material is improved. In this way, the best performance and durability of the microstrip of the center contact can be obtained. During annealing, the consistency of the center contact of the electric connector during the local annealing of the microstrip is ensured, and it is ensured that the annealing part of the microstrip is heated during annealing, and the other parts are not heat-conducting.

[0018] Furthermore, rotating the driving screw can drive the lifting plate to move up and down, and the height of the frequency regulating welding machine can be adjusted, so that the distance between the induction coil and the cover plate can be adjusted, which is helpful for adjustment during annealing heating.

[0019] Furthermore, the positioning groove can be arranged to fix and adjust the position of the wave welding machine on the length axis of the base plate.

[0020] Furthermore, the guide pillars and guide grooves are used to limit and adjust the position of the wave welding machine on the lifting plate to prevent the welding machine from shaking.

[0021] Furthermore, the sliding connection between the base and the second slide plate not only facilitates installation of the base, but also facilitates removal of the base after annealing.

[0022] Furthermore, the limiting plate can prevent the base from sliding out of the slide slot, which helps to improve the safety of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of a microstrip local annealing device for a central contact of an electrical connector according to the utility model;

[0024] Figure 2 It is a partial schematic diagram of the utility model.

[0025] In the figure, 1, bottom plate; 2, welding installation structure; 3, annealing fixing structure; 4, frequency adjustment welding machine; 5, high frequency generator; 6, base; 7, cover plate; 8, induction coil; 9, lifting plate; 10, driving screw; 11, positioning groove; 12, guide column; 13, guide groove; 14, guide screw; 15, first slide plate; 16, second slide plate; 17, slide groove; 18, slider; 19, limit plate; 20, time relay. DETAILED DESCRIPTION

[0026] The present invention will be further described in detail below in conjunction with specific embodiments, which are intended to explain the present invention rather than to limit it.

[0027] The utility model discloses a local annealing device for microstrip of the central contact of an electric connector, referring to Figure 1 , 2 , including welding tooling, annealing tooling, frequency-regulated welding machine 4, high-frequency generator 5 and time relay. The welding tooling includes a base plate 1, a welding installation structure 2 and an annealing fixing structure 3.

[0028] The welding installation structure 2 and the annealing fixed structure 3 are arranged relatively along the length axis of the base plate 1. The frequency adjustment welding machine 4 is fixed on the welding installation structure 2. The welding installation structure 2 includes a lifting plate 9 and a driving screw 10. The frequency adjustment welding machine 4 is arranged on the lifting plate 9. One end of the driving screw 10 is rotatably connected to the base plate 1, and the other end passes through and extends out of the lifting plate 9, and is threadedly connected to the lifting plate 9.

[0029] The bottom plate 1 is provided with a positioning groove 11, and the rotating end of the driving screw 10 is located in the positioning groove 11, and the length axis of the positioning groove 11 is perpendicular to the length axis of the bottom plate 1. Rotating the driving screw 10 can drive the lifting plate 9 to move up and down, and the height of the frequency adjustment welding machine 4 can be adjusted, so that the distance between the induction coil 8 and the cover plate 7 can be adjusted, which is helpful for adjustment during annealing heating.

[0030] The lifting plate 9 is provided with a plurality of guide posts 12, which are arranged along the edge of the lifting plate 9. In this embodiment, two guide posts 12 are provided, and are arranged symmetrically with respect to the central axis of the lifting plate 9. In order to smoothly lift the lifting plate 9, the lifting plate 9 is further provided with a guide screw 14, and the lifting plate 9 is threadedly connected to the guide screw 14. When the lifting plate 9 reaches the annealing height, the bottom of the guide screw 14 is pressed against the bottom plate 1, so that the height of the lifting plate 9 can be fixed, and the threaded structure can support the lifting plate 9.

[0031] A guide groove 13 is also provided on the lifting plate 9 , and the bottom of the frequency-adjusting welding machine 4 is slidably connected to the guide groove 13 , and the length axis of the guide groove 13 is parallel to the length axis of the bottom plate 1 .

[0032] The annealing tooling includes a base 6 and a cover plate 7. The base 6 is connected to the annealing fixed structure 3. The annealing fixed structure 3 includes a first slide 15 and a second slide 16. The bottom of the first slide 15 is connected to the bottom plate 1, the second slide 16 is connected to the bottom plate 1 of the first slide 15, and the base 6 is slidably connected to the top of the second slide 16. In this embodiment, the first slide 15, the second slide 16 and the bottom plate are fixedly connected by four through bolts, and there is a step between the second slide 16 and the first slide 15. A slide groove 17 is provided on the top of the second slide 16, and the length axis of the slide groove 17 is parallel to the length axis of the bottom plate 1. A slider 18 cooperating with the slide groove 17 is provided at the bottom of the base 6. The slider 18 slides along the length axis of the slide groove 17. The cross section of the slider 18 is dovetail-shaped or other special-shaped structures, which can ensure that the slider 18 slides in the slide groove 17 and prevent the slider 18 from detaching from the top of the slide groove 17.

[0033] One end of the slide slot 17 close to the frequency regulating welding machine 4 is connected to a limit plate 19 through a bolt structure, and the limit plate 19 is connected to the second slide plate 16 .

[0034] The base 6 is a box-shaped structure with an open top, and the cover plate 7 is located at the opening of the base 6; during annealing, the connector contact is fixed on the cover plate 7, and the base 6 is filled with cooling liquid, which is water in this embodiment.

[0035] The output end of the high frequency generator 5 is connected to the control end of the frequency regulating welding machine 4. The high frequency generator 5 includes an oscillator and an amplifier. The output end of the oscillator is connected to the input end of the amplifier, and the output end of the amplifier is connected to the control end of the frequency regulating welding machine 4. Based on the working principle of the oscillation circuit, the oscillator is responsible for generating a signal of a reference frequency, and the amplifier is used to increase the amplitude of the signal generated by the oscillator. The oscillator is the core part of the high frequency signal generator, which can generate a stable high frequency signal and generate a stable oscillation signal using the resonance characteristics of the crystal. The amplifier is used to amplify the amplitude of the signal generated by the oscillator. After the signal generated by the oscillator is amplified by the amplifier, sufficient output power can be obtained. The amplifier can be adjusted according to demand to obtain the required output power.

[0036] During annealing, the induction coil 8 of the frequency-regulated welding machine 4 is located above the cover plate 7. When the high-frequency current passes through the induction coil 8, an eddy current is generated inside the workpiece, and this eddy current generates heat around the workpiece to be tested, thereby heating the workpiece to be tested to achieve annealing.

[0037] The output end of the time relay 20 is connected to the control end of the frequency regulation welding machine 4 to control the heating time of the frequency regulation welding machine 4 .

[0038] The utility model provides a method for using a local annealing device for a microstrip of a central contact of an electrical connector as follows:

[0039] S1, fill the base 6 of the annealing tool with water, then fix the central contact of the electrical connector on the cover plate 7, and place the whole on the base 6 for fixing;

[0040] S2, placing the annealing tooling on the wave welding tooling;

[0041] S3, the microstrip part of the center contact is heated to an appropriate temperature;

[0042] S4, using the time relay 9 to control the heating time, keep heating for a certain time, so that the microstrip part of the center contact is fully heated;

[0043] S5, water bath cooling, so that the internal structure of the metal material of the microstrip part of the center contact is improved.

[0044] The utility model heats the microstrip of the center contact of the electrical connector to an appropriate temperature and maintains it for a certain period of time, so that the internal structure of the metal material is improved. By this method, the best performance and durability of the microstrip of the center contact can be obtained, thereby solving the shortcomings of the prior art that local annealing cannot be performed according to the size of the microstrip of the center contact of the electrical connector, and the problems of poor heat treatment consistency and low processing efficiency due to uneven local heat treatment.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to impose any limitation on the technical solution of the present invention. Those skilled in the art should understand that, without departing from the spirit and principles of the present invention, the technical solution can also be subjected to several simple modifications and replacements, and these modifications and replacements are also within the scope of protection covered by the claims.

Claims

1. A local annealing device for microstrip of a central contact of an electrical connector, characterized in that: The invention comprises a welding tool, an annealing tool, a frequency regulating welding machine (4), a high frequency generator (5) and a time relay (20). The welding tool comprises a bottom plate (1), a welding installation structure (2) and an annealing fixed structure (3). The welding installation structure (2) and the annealing fixed structure (3) are arranged relative to each other along the length axis of the bottom plate (1). The frequency regulating welding machine (4) is fixed on the welding installation structure (2). The annealing tool comprises a base (6) and a cover plate (7). The base (6) is connected to the annealing fixed structure (3). The base (6) is a box-shaped structure with an open top. The cover plate (7) is located at the opening of the base (6). The output end of the high frequency generator (5) and the output end of the time relay (20) are both connected to the control end of the frequency regulating welding machine (4). During annealing, the connector contact is fixed on the cover plate (7). A cooling liquid is injected into the base (6). The induction coil (8) of the frequency regulating welding machine (4) is located above the cover plate (7).

2. The local annealing device for microstrip of the central contact of the electrical connector according to claim 1, characterized in that: The welding installation structure (2) comprises a lifting plate (9) and a driving screw (10). The frequency-adjusting welding machine (4) is arranged on the lifting plate (9). One end of the driving screw (10) is rotatably connected to the base plate (1), and the other end passes through and extends out of the lifting plate (9) and is threadedly connected to the lifting plate (9).

3. The local annealing device for microstrip of the central contact of the electrical connector according to claim 2, characterized in that: A positioning groove (11) is provided on the bottom plate (1), the rotating end of the driving screw rod (10) is located in the positioning groove (11), and the length axis of the positioning groove (11) is perpendicular to the length axis of the bottom plate (1).

4. The local annealing device for microstrip of the central contact of the electrical connector according to claim 2, characterized in that: A plurality of guide posts (12) are arranged on the lifting plate (9), and the guide posts (12) are arranged along the edge of the lifting plate (9).

5. The local annealing device for microstrip of the central contact of the electrical connector according to claim 2, characterized in that: A guide groove (13) is also provided on the lifting plate (9), the bottom of the frequency-adjusting welding machine (4) is slidably connected to the guide groove (13), and the length axis of the guide groove (13) is parallel to the length axis of the bottom plate (1).

6. The local annealing device for microstrip of the central contact of the electrical connector according to claim 1, characterized in that: The annealing fixed structure (3) comprises a first slide plate (15) and a second slide plate (16), wherein the bottom of the first slide plate (15) is connected to the bottom plate (1), the second slide plate (16) is connected to the bottom plate (1) of the first slide plate (15), and the base (6) is slidably connected to the top of the second slide plate (16).

7. The local annealing device for microstrip of the central contact of the electrical connector according to claim 6, characterized in that: A slide groove (17) is provided on the top of the second slide plate (16), the length axis of the slide groove (17) is parallel to the length axis of the bottom plate (1), and a slider (18) matching with the slide groove (17) is provided at the bottom of the base (6), and the slider (18) slides along the length axis of the slide groove (17).

8. The local annealing device for microstrip of the central contact of the electrical connector according to claim 7, characterized in that: A limit plate (19) is provided at one end of the slide groove (17) close to the frequency regulating welding machine (4), and the limit plate (19) is connected to the second slide plate (16).

9. The local annealing device for microstrip of the central contact of the electrical connector according to claim 1, characterized in that: The cooling liquid is water.

10. The local annealing device for microstrip of the central contact of the electrical connector according to claim 1, characterized in that: The high frequency generator (5) comprises an oscillator and an amplifier, the output end of the oscillator is connected to the input end of the amplifier, and the output end of the amplifier is connected to the control end of the frequency regulating welding machine (4).

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