Welding tool of SMP connector

Abstract

The utility model provides a welding tool of an SMP connector, relates to the technical field of SMP connector processing, and solves the problem that an existing welding tool is not suitable for sintering operation of mass SMP connectors. The SMP connector pressing device comprises a pressing plate, a boss used for pressing an SMP connector is arranged on the pressing plate, and a rubber pad is arranged at the end, away from the pressing plate, of the boss. The rubber pad is arranged on the end face of the boss, the problem that the SMP connector cannot be pressed in place after the pressing plate deforms is solved through the elasticity of the rubber pad, meanwhile, the rubber pad is low in use cost and light in weight, the whole tool is light in weight and convenient to move, and sintering operation of the SMP connectors on a large scale is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of SMP connector processing, and more specifically, to a welding tooling for SMP connectors. Background Art

[0002] The SMP connector, also known as the ultra-small push-on connector, is a highly shielded and very small interconnection device, which is widely used in miniaturized high-frequency coaxial modules and high-data-rate applications, such as antenna, broadband installation, testing and measurement, and quantum computing.

[0003] In microwave products, the SMP connector is installed on the structural part by sintering (brazing) to ensure radio frequency indicators and long-term reliability. Since the radio frequency of the product reaches millimeter wave, to ensure the continuous radio frequency ground of the SMP connector and meet the design requirements of high-frequency indicators, the SMP connector needs to be in good contact with the cavity on the structural part after sintering, without gaps. Therefore, a pressure needs to be applied to the SMP connector by using a welding tooling during sintering (welding) to make the SMP connector fit tightly in the cavity, so as to avoid the generation of gaps. There are two existing welding toolings: ① A pressing plate integrally processed from aluminum alloy, with bosses for pressing the SMP connector on the pressing plate; ② Replacing the bosses on the first tooling with elastic columns. The first welding tooling is inexpensive, integrally processed from aluminum alloy, and has simple assembly; however, during the sintering process, the structural part and the pressing plate need to be heated to about 200 °C. During the heating process, if the structural part is large and there are many SMP connectors, uncontrollable deformations will occur in both the structural part and the pressing plate, and it is impossible to ensure that all SMP connectors can be pressed in place to reach the required depth in the cavity. Therefore, the first tooling is only suitable for sintering operations of about 2 SMP connectors, and there are risks for more than 2. The elastic column of the second welding tooling is provided with a spring, so the elastic column has a certain amount of compressive deformation. When the antenna mounting plate and the pressing plate deform, the elastic column will compensate for this deformation to ensure that the SMP connector fits tightly against the cavity, and it is suitable for sintering multiple SMP connectors simultaneously. However, it has more parts and complex assembly. For sintering a large number of SMP connectors, the usage cost of the tooling is relatively high (the cost of a single elastic column is about 40 - 50 yuan), and the elastic column is generally made of stainless steel structure, making the entire tooling heavy and inconvenient to operate. Moreover, it will absorb a large amount of heat during welding, increasing the sintering time.

[0004] In summary, the existing welding tooling is not suitable for mass sintering operations of SMP connectors. Summary of the Utility Model

[0005] In view of the above problems, the purpose of the present utility model is to provide a soldering tooling for SMP connectors. A rubber pad is arranged on the end face of the boss, and the elasticity of the rubber pad is used to make up for the problem that the pressing plate cannot press the SMP connector in place after deformation. At the same time, the rubber pad has low use cost and light weight, and the whole tooling is also light in weight and convenient to move, which is beneficial to the sintering operation of a large number of SMP connectors.

[0006] The embodiments of the present utility model are realized through the following technical solutions:

[0007] A soldering tooling for SMP connectors, including a pressing plate, a boss for pressing the SMP connector is arranged on the pressing plate, and a rubber pad is arranged at one end of the boss away from the pressing plate.

[0008] Preferably, the rubber pad is made of silicone rubber.

[0009] Preferably, the thickness of the rubber pad is 1-2 mm.

[0010] Preferably, the pressing plate is detachably connected to a substrate for soldering with the SMP connector.

[0011] Preferably, a screw penetrates through the pressing plate movably, and a threaded hole matching with the screw is arranged on the substrate.

[0012] Preferably, the pressing plate and the boss are made of aluminum alloy.

[0013] The technical solutions of the embodiments of the present utility model have at least the following advantages and beneficial effects:

[0014] A rubber pad is arranged on the end face of the boss, and the elasticity of the rubber pad is used to make up for the problem that the pressing plate cannot press the SMP connector in place after deformation. At the same time, the rubber pad has low use cost and light weight, and the whole tooling is also light in weight and convenient to move, which is beneficial to the sintering operation of a large number of SMP connectors. Description of the Drawings

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required to be used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can also be obtained based on these drawings without creative efforts.

[0016] Figure 1 It is an exploded state schematic diagram provided by the embodiments of the present utility model;

[0017] Figure 2 It is a use state schematic diagram provided by the embodiments of the present utility model.

[0018] Icon: 1 - pressure plate; 2 - boss; 3 - screw; 4 - rubber pad; 5 - SMP connector; 6 - substrate; 7 - installation cavity; 8 - threaded hole. Detailed implementation mode

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. The components of the embodiments of the present utility model usually described and illustrated in the drawings here can be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the present utility model to be protected, but only represents the selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts belong to the scope of protection of the present utility model.

[0021] The following will be combined with Figure 1 、 Figure 2 to describe the present utility model in detail.

[0022] Embodiment

[0023] A welding tooling for an SMP connector, as shown in Figure 1 and 2 shown, includes a pressure plate 1. A boss 2 for pressing the SMP connector 5 is provided on the pressure plate 1. A rubber pad 4 is provided at one end of the boss 2 away from the pressure plate 1. The rubber pad 4 can be connected to the boss 2 by glue bonding, melting and bonding or other connection methods (such as screw connection).

[0024] The elasticity of the rubber pad 4 is used to make up for the problem that the pressure plate 1 cannot press the SMP connector 5 in place after deformation. At the same time, the rubber pad 4 has a low use cost and a light weight, and the weight of the entire tooling is also light, which is convenient for movement and is beneficial to the sintering operation of a large number of SMP connectors 5.

[0025] The rubber pad 4 is made of silicone rubber. The silicone rubber can maintain good elasticity in an environment of 250°C.

[0026] The thickness of the rubber pad 4 is 1 - 2 mm. While ensuring better pressing of the SMP connector 5 by the rubber pad 4, the thickness of the rubber pad 4 is minimized as much as possible to reduce the weight and use cost of the entire tooling.

[0027] The pressure plate 1 is detachably connected to a substrate 6 for welding with the SMP connector 5. An installation cavity 7 matching the SMP connector 5 is provided on the substrate 6, as shown inFigure 2 As shown, after the SMP connector 5 is placed in the installation cavity 7, it is connected to the substrate 6 by the pressing plate 1, so that the rubber pad 4 on the boss 2 presses on the SMP connector 5, thereby making the SMP connector 5 fit tightly in the installation cavity 7; after the sintering welding is completed, the pressing plate 1 is removed to prepare for the next welding operation.

[0028] A screw 3 penetrates through the pressing plate 1 movably, and a threaded hole 8 matching with the screw 3 is arranged on the substrate 6. The screw 3 and the threaded hole 8 cooperate to lock the pressing plate 1 and the substrate 6 to each other, ensuring that the rubber pad 4 is pressed in place and facilitating subsequent disassembly.

[0029] The pressing plate 1 and the boss 2 are made of aluminum alloy. The aluminum alloy material can greatly reduce the weight of the welding tooling, making the welding tooling convenient to move and operate. The pressing plate 1 and the boss 2 are integrally processed.

[0030] The boss 2 is a cylinder, which can better abut against and press on the SMP connector 5.

[0031] Usage method of the welding tooling:

[0032] Connect the rubber pad 4 to the boss 2, apply an appropriate amount of soldering flux on the installation cavity 7, and sequentially place the tin ring and the SMP connector 5; place the pressing plate 1 so that each boss 2 aligns with an SMP connector 5, and finally use the screw 3 to fix the pressing plate 1 on the substrate 6.

[0033] Put the whole tooling and the substrate 6 into a sintering furnace for sintering. After the sintered (welded) module cools down, remove the screw 3.

[0034] The above is only the preferred embodiment of the present utility model and is not used to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A welding tool for an SMP connector, comprising a pressing plate (1), wherein the pressing plate (1) is provided with a boss (2) for pressing an SMP connector (5), wherein: A rubber pad (4) is provided at one end of the boss (2) away from the pressure plate (1).

2. A welding tool for an SMP connector according to claim 1, characterized in that: The rubber pad (4) is made of silicone rubber.

3. The welding tool for SMP connector according to claim 1, characterized in that: The thickness of the rubber pad (4) is 1-2 mm.

4. The welding tool for SMP connector according to claim 1, characterized in that: The pressing plate (1) is detachably connected to a base plate (6) for welding with an SMP connector (5).

5. The welding tool for SMP connector according to claim 4, characterized in that: A screw rod (3) movably penetrates the pressure plate (1), and a threaded hole (8) cooperating with the screw rod (3) is provided on the base plate (6).

6. The welding tool for SMP connector according to claim 1, characterized in that: The pressing plate (1) and the boss (2) are made of aluminum alloy.

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