CN111313201A

CN111313201A - Tool for assembling SMP connector

Info

Publication number: CN111313201A
Application number: CN201811514774.0A
Authority: CN
Inventors: 李少岚; 郝成丽; 房晓琪; 牛亚南; 任飞飞; 王江
Original assignee: Beijing Huahang Radio Measurement Research Institute
Current assignee: Beijing Huahang Radio Measurement Research Institute
Priority date: 2018-12-12
Filing date: 2018-12-12
Publication date: 2020-06-19
Anticipated expiration: 2038-12-12
Also published as: CN111313201B

Abstract

The invention discloses a tool for assembling an SMP connector, which comprises a bracket and a spring tool, wherein the spring tool is of a cylindrical boss structure, a spring is positioned in a branch of the spring tool, one end of the spring tool is fixed on the bracket, and the other end of the spring tool is used for tightly propping the SMP connector. The invention reduces the assembly difficulty and the debugging difficulty, improves the amplitude-phase consistency among microwave component channels, the port standing wave coefficient and other electrical properties, and shortens the delivery cycle of the broadband receiver.

Description

Tool for assembling SMP connector

Technical Field

The invention belongs to the technical field of microwave assemblies, and particularly relates to a tool for assembling an SMP connector.

Background

The broadband receiver completes superheterodyne reception of broadband signals input by the antenna, realizes output of high and medium frequency signals and video logarithmic signals, and is widely applied to active and passive composite radar seeker. The broadband receiver has high requirements on amplitude-phase consistency among a plurality of channels and port standing wave coefficients.

At present, the mainstream assembly method in China is to manually tin (or daub solder paste) on the surface of the SMP connector by using a soldering iron, then assemble the SMP connector into a box body, and perform secondary melting heating on the connector on a hot bench to realize the welding of the connector. The method is complicated in operation and high in difficulty, the consistency of the soldering heights of the connectors cannot be guaranteed, and once the quantity of the solder is not well controlled, the joint testing performance is seriously influenced (the solder is too little, the standing wave performance is poor, the solder is too much, and the butt joint testing joint cannot be inserted), so that the requirement on the operating skill of an operator is high.

Disclosure of Invention

The technical problem to be solved by the invention is to provide a simple and easy-to-operate SMP connector assembly tool which can improve the electrical performance of a microwave component.

In order to solve the technical problem, the invention provides a tooling for assembling SMP connectors, which adopts the following technical scheme:

the tool comprises a support and a spring tool, wherein the spring tool is of a cylindrical boss structure, a spring is located in a spring tool branch, one end of the spring tool is fixed on the support, and the other end of the spring tool is fixedly connected with the spring inside the branch and can move along with the extension of the spring to be used for tightly jacking the SMP connector.

Furthermore, the support is of a single T-shaped structure or n T-shaped structures forming a comb-shaped structure, n is determined by the number of SMP connectors on the microwave assembly, the vertical part of the T is hollow, a through hole is formed in the top end of the T, each spring tool is fixedly installed in the vertical part of the T of the support through the through hole by a screw, and the size of the vertical part of the T is matched with the size of the spring tool branches. The horizontal part of the T shape is provided with a bracket mounting hole for assembling the bracket on the microwave component.

Through the test verification of the broadband frequency synthesis receiving assembly, the assembling tool is simple and easy to operate, the assembling difficulty and the debugging difficulty of the SMP connector are effectively reduced, and the assembling efficiency and the microwave electrical property are improved. The method can be widely applied to assembly of microwave components such as a multi-channel receiver and a TR component.

Drawings

FIG. 1 is a schematic view of a spring tooling structure according to the present invention;

FIG. 2(a) is a front view of a single stand of the present invention;

FIG. 2(b) is a top view of a single bracket of the present invention;

FIG. 3(a) is a front view of a row of holders of the present invention;

FIG. 3(b) is a top view of the row of holders of the present invention;

FIG. 4 is a schematic view of the assembly of a single tool of the present invention;

FIG. 5 is a schematic view of the assembly of the row tool of the present invention.

Detailed Description

The assembly method provided by the invention is further explained below by combining the attached drawings and the implementation method.

The tool comprises a support 6 and a spring tool, the spring tool is of a cylindrical boss structure, and the radial sizes of two ends of the spring tool are smaller than those of the branches, as shown in figure 1. One end of the spring tool is provided with a threaded hole 1 for fixing the spring tool on a support 6, a spring 2 is positioned in a cylinder, and the other end of the spring tool is fixedly connected with the spring inside the branch and can move along with the extension of the spring for tightly jacking an SMP connector 5. The bracket 6 is a single T-shaped structure (as shown in fig. 2) or a comb-shaped structure composed of n T-shaped structures (as shown in fig. 3), and the number of the spring tools and the T-shaped structures is determined by the number of SMP connectors on the microwave assembly. The vertical part of the T shape is hollow, a through hole 3 is arranged at the top end of the vertical part, each spring tool is fixedly arranged in the vertical part of the T shape of the bracket 6 through the through hole 3 and the threaded hole 1 by screws, and the size of the through hole 3 is determined by the size of the threaded hole 1 end of the spring tool, as shown in fig. 2(a) and 3 (a). The size of the T-shaped vertical part is matched with the size of the spring tool branch. The horizontal portion of the "T" provides a bracket mounting hole 4 for mounting a bracket 6 to a microwave assembly, determined by the size of the mounting flange on the microwave assembly, as shown in fig. 2(b) and 3 (b).

The spring tool is assembled to the support through the screws, the spring tool is jacked into the SMP connector 5 to be assembled, and the support is assembled to the microwave assembly through the screws, so that the spring tool is provided with a certain compression amount. The assembly schematic diagram of a single tool is shown in fig. 4, and the assembly schematic diagram of a row of tools is shown in fig. 5.

L1 (height of stent) + L2 (compression of spring set) + L3 (depth of connector indent) ═ L4 (length of spring set)

Wherein L2 (the compression amount of the spring tool) is determined by the spring performance, and the recommended value is 1.5-2.8 mm;

l3(SMP connector indent depth) is determined by connector size and assembly interface requirements;

l4 (spring tooling length) is determined by the selected spring length.

L1 (stent height) can be determined from the lengths of L2, L3, and L4.

Claims

1. The tooling for assembling the SMP connector is characterized by comprising a bracket and a spring tooling, wherein the spring tooling is of a cylindrical boss structure, and the radial sizes of two ends of the spring tooling are smaller than the sizes of limbs; the spring (2) is located in the spring tool branch, one end of the spring tool is fixed on the support, and the other end of the spring tool is fixedly connected with the spring inside the branch and can move along with the extension of the spring to be used for tightly jacking the SMP connector (5).

2. A tooling according to claim 1, wherein the bracket is a single T-shaped structure or a comb-shaped structure consisting of n T-shaped parts, the top end of the vertical part of the T-shaped part is provided with a through hole (3), a screw passes through the through hole (3) to fixedly mount each spring tooling in the vertical part of the T-shaped part of the bracket, and the size of the vertical part of the T-shaped part is matched with that of the spring tooling stem.

3. Tooling for the assembly of SMP connectors according to claim 2, characterized in that the horizontal part of the "T" is provided with bracket mounting holes (4) to fit the bracket to the microwave assembly.