Fixture suitable for circuit board testing table

Abstract

The invention discloses a fixture suitable for a circuit board testing table. The fixture is characterized by comprising a lower plate, an upper press plate rotationally connected with the lower plate and an air pressure spring with both ends respectively fixed on the lower plate and the upper press plate; the lower plate is provided with a lower needle plate, a probe protecting plate and a carrier plate and further provided with a baffle, a guiding pillar and a locating pillar in order to limit the horizontal movement of the upper press plate, in this way, the location precision of the upper press plate and the stability of the structure of a main fixture body are enhanced, the property of a circuit board to be tested is protected in the direction with the adoption of a static grounded copper chip; the upper press plate is provided with an upper needle plate, a press bar, a lifting handle and a press plate handle, so that the upper plate is convenient to lift and convey; the upper press plate is opened and closed by the air pressure spring so that the fixture can be opened and closed easily and conveniently, the operation is human-based, the lifting angle from 60 DEG to 85 DEG is formed between the upper press plate and the lower plate when the upper press plate is lifted, an operator is unlikely to strike a part when arranging the circuit board to be tested, in this way, the safety of the circuit board to be tested is ensured, and meanwhile, the stable structure of the fixture is ensured. With the common function of the structure, the stability of the main structure of the fixture is enhanced, the looseness situation is unlikely to happen, and meanwhile, the testing stability is enhanced.

Description

technical field [0001] The invention relates to a jig, in particular to a jig suitable for a circuit board testing machine. Background technique [0002] More and more circuit board testing machines are used by electronic and electrical industries, especially the HP3070 circuit board testing machine manufactured by American Agilent Company, because of its powerful functions, it is widely used to test the performance of circuit board parts , including mobile phones, computers, medical equipment, automobiles and other circuit board SMD rear station performance tests, etc., the utilization rate is very high. There is a jig on the test machine, and the jig is locked on the machine by the air valve. During the test, the air in the test fixture is vacuumed, so that the detection probes on the upper and lower plates of the fixture pierce the test points on the test board, and then the test is controlled by the control card in the machine. At present, due to the unreasonable desig...

AI Technical Summary

Problems solved by technology

At present, due to the unreasonable design of the main structure of the jig, the main structure of the jig will become loose after long-term use by the user, which will make the test machine unstable for the circuit board test, and the false test rate is very high, which greatly reduces customer End production capacity, production efficiency is severely reduced, and maintenance costs are correspondingly increased

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