Device for quickly detecting presence of PCBA backboard locking screw

Abstract

The invention discloses a device for quickly detecting the presence of a PCBA backboard locking screw. The device comprises a detection jig, an electric control box, a number of light sensors which are arranged on the detection jig and in signal connection with the electric control box, and a number of indicators which are in signal connection with the electric control box and one-to-one corresponding to the light sensors. The distribution of the light sensors on the surface of the detection jig is the same as the distribution of fastening holes reserved in the currently detected PCBA backboard, so as to make the corresponding indicator warn according to whether light is blocked when passing through each fastening hole. According to the device for quickly detecting the presence of the PCBAbackboard locking screw, the light sensors detect the emitted light of each fastening hole, and the presence of the fastening hole can be intelligently detected; a technician can conveniently and fast complete the detection of the screw locking status on the PCBA backboard; the detection efficiency is improved; the manual load is reduced; and the detection cost is reduced.

Description

technical field [0001] The invention relates to the technical field of PCBs, in particular to a device for quickly detecting the presence of locking screws on a PCBA backplane. Background technique [0002] With the development of electronic technology in China, more and more electronic devices have been widely used. [0003] A server is an important part of electronic equipment and a device that provides computing services. Since the server needs to respond to and process service requests, generally speaking, the server should have the ability to undertake and guarantee services. According to the different types of services provided by the server, it is divided into file server, database server, application server, WEB server, etc. The main components of the server include processors, hard disks, memory, system buses, etc., which are similar to general-purpose computer architectures, but due to the need to provide highly reliable services, processing power, stability, rel...

AI Technical Summary

Problems solved by technology

When designing the structure, the hardware engineer will strictly design the locking position and the number of screws. A missing lock of a screw will have a great impact on the strength parameters of the PCBA after assembly, which will seriously affect the quality of the PCBA and lead to the failure of the finished product. Fail

[0005] In the prior art, after the PCBA backplane is assembled, the following two methods are usually used to check whether the screws are leaked or not: 1. The engineering production inspection sequence WI, and the assembly operators perform visual inspection according to the order of WI. However, the screws on the backplane are usually There are as many as 20 pieces, and the personnel visually inspect for a long time, and the risk of leakage is high; 2. AOI equipment is installed after the assembly process for inspection. However, although the AOI equipment has no risk of leakage, the cost of the equipment is as high as 100,000 or more, and it is difficult to promote. , costly

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