PCBA (printed circuit board assembly) test bench and application method thereof

Abstract

The invention relates to a PCBA (printed circuit board assembly) test bench. The PCBA test bench comprises a control cabinet, a needle bed, a supporting plate and a supporting plate compressing assembly, wherein the needle bed is encapsulated at an open part of the upper end of the control cabinet, the supporting plate compressing assembly is vertically arranged at the rear part of the upper end of the needle bed, the supporting plate is vertically slidably arranged on the needle bed corresponding to the lower end of the supporting plate compressing assembly, multiple probe holes are formed in the supporting plate, probes are vertically fixedly arranged on the needle bed corresponding to each probe hole, the supporting plate compressing assembly pushes down the supporting plate, and the end part of each probe is arranged in one probe hole formed in the supporting plate. The PCBA test bench has the advantages that the supporting plate is pushed down by virtue of the supporting plate compressing assembly, so that a point TEST of a PCBA can be contacted with the probes, and the aim of rapidly and accurately detecting performances of the PCBA can be realized. The supporting plate is made from agglomerated stone, so that substrate deformation and static breakdown can be prevented; meanwhile, various specially-shaped substrates with irregular outlines or flexible plates can be detected, and the probes and a tested point TEST can be accurately positioned.

Description

technical field [0001] The invention belongs to the technical field of electronic product manufacturing, and specifically relates to a PCBA board test bench and a use method thereof. Background technique [0002] At present, in the manufacturing process of electronic products, there is usually an inspection process, that is, to perform performance inspection on the circuit board with electronic components soldered, referred to as PCBA board. The purpose is to detect the connection, welding and electrical properties of each component on the PCB board. test. Traditional PCBA board test fixtures mostly use methods such as screw holes on the substrate itself, positioning hole slots, or edge contour positioning. [0003] However, the above positioning method is likely to cause uneven deformation of the PCBA board, the deviation of the probe from the reserved TEST point, and the large deviation of the current collection value due to the influence of the contact resistance. Cont...

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Problems solved by technology

[0003] However, the above positioning method is likely to cause uneven force deformation of the PCBA board, deviation between the probe and the reserved TEST point, and large deviation of the current collection value due to the influence of the contact resistance, etc.

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