Manufacture method for electrical testing fixture

Abstract

The invention discloses a manufacture method for an electrical testing fixture. The manufacture method for the electrical testing fixture comprises the following technical steps of: preparing a fixture; guiding film light painting; guiding the film to punch; guiding the film to drill; spicing an electrical testing needle; and wiring the fixture. According to the electrical testing fixture, the guide film is used for indicating the test pin splicing position and sequence, and the problems of big position deviation and disordered sequence of the traditional splicing mode are solved. The guide film is positioned by a punching and positioning hole; drilled positioning holes are punched by a dedicated film punching device to guarantee the position precision of the drilled positioning holes; the guide film which performs the guide action is provided with the drilled positioning holes of which the precision is + / -0.025mm; when the guide film is processed on a mechanical drilling machine, two drilled positioning holes are used for dowel positioning to guarantee the drilling position precision of the guide hole of the electrical testing needle so as to guarantee the splicing precision of the testing needle and the position sequence accuracy; and the manufacture efficiency and success rate of the testing fixture can be obviously improved.

Description

technical field [0001] The invention relates to a manufacturing method of a special electric measuring machine fixture for a printed circuit board. Background technique [0002] During the manufacturing process of printed boards, in order to test the electrical properties of the finished boards, they need to be tested for electrical properties (referred to as electrical testing) before delivery to customers. During electrical testing, the use of test fixtures is essential. In the early traditional process of making electrical test fixtures, the plug-in installation of test pins is generally done by hand, and the plug-in effect depends on the work experience and proficiency of the assembler. Broken pins and the position sequence of the needle sockets often occur. Errors and other issues that cause the test fixture not to work properly. The production process of the test fixture has been improved in the later stage. The guide mold is generally used to guide the insertion posi...

AI Technical Summary

Problems solved by technology

In the early traditional process of making electrical test fixtures, the plug-in installation of test pins is generally done by hand, and the plug-in effect depends on the work experience and proficiency of the assembler. Broken pins and the position sequence of the needle sockets often occur. Errors and other issues that cause the test fixture to not work properly

The production process of the test fixture has been improved in the later stage. The guide mold is generally used to guide the insertion position and sequence of the test pins. However, due to the low positioning accuracy between the guide mold and the test fixture, the success rate of the test fixture is not high. significantly improved

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