Automatic test system for circuit board

Abstract

The invention relates to the technical field of a test for installed circuit boards, in particular to an automatic test system for a circuit board. The automatic test system for the circuit board comprises a central processing unit, text fixtures, an integrated circuit test (ICT) circuit board, a final circuit test (FCT) circuit board, and a switch board for achieving the conversion between a component level test and a board test. The central processing unit comprises an input unit, a control unit, and a data conversion output unit. The control unit is connected with the input unit and the data conversion output unit. One end of the switch board is connected with the text fixtures, and one end of the ICT circuit board and one end of the FCT circuit board are both connected with the other end of the switch board. The other end of the switch board, the other end of the ICT circuit board, and the other end of the FCT circuit board are all connected with the control unit. The automatic test system for the circuit board can test the component level and functionally test the circuit board at the same time, and therefore work intensity of testers can be reduced, efficiency is improved, and testing man-made errors are reduced. The practical value of the automatic test system for the circuit board is high.

Description

technical field [0001] The invention relates to the technical field of testing circuit boards, in particular to a fully automatic testing system for circuit boards. Background technique [0002] In the mass production process of Printed-Circuit Board Assembly (PCBA), due to various possible factors of equipment and operators, it is impossible to guarantee that all PCBAs produced are in good condition. This requires adding a variety of testing equipment and testing tools at the end of production to ensure that all installed circuit boards are completely consistent with the various specifications and parameters of the design. [0003] In Circuit Test (ICT), which can test the soldered resistors, capacitors, inductors, diodes, transistors, operational amplifiers and digital devices on the PCBA. ICT has a wide range of applications, high measurement accuracy, and clear instructions for detected problems. It is very easy for workers with average electronic skills to deal with pr...

AI Technical Summary

Problems solved by technology

The inspectors must take out the tested PCBA from the fixture after completing the ICT component-level test process and put it on the FCT fixture, and wait for a period of discharge before starting the board-level test. The test time is long and the efficiency is high. Low; in order to complete the PCBA inspection, two sets of ICT and FCT systems and two different fixtures must be purchased, which increases the user's use cost; in addition, the central processors of the two systems will issue corresponding inspection reports respectively, and inspection personnel need to In addition, data integration is required to obtain a complete test report, which increases the workload of testers.

Images