System for testing diode thermistor in high speed

Abstract

The invention provides a system for testing a diode thermistor in a high speed. The system comprises a material discharging device, a conveying device, a test device, a constant-temperature slot, a material receiving device, a lifting device, an engine seat, a transmission mechanism and a control device; the material discharging device, the conveying device, the test device, the material receiving device, the transmission mechanism and the control device are all arranged on the engine seat; the lifting device and the engine seat are arranged on the floor and the constant-temperature slot is formed on the floor; the material discharging device comprises a material discharging magnetic rail and a material discharging magnetic wheel; the conveying device comprises a chain wheel device, two material discharging chains, a conveying pipe, a feeding magnetic rail, a first stopping device, a second stopping device and a guide block; the test device comprises a test magnetic wheel, a tester and a probe; and the material receiving device comprises a stepping wheel, a material receiving box and a poking sheet. The system is used for testing the diode thermistor, and has high test speed and high stepping precision.

Description

technical field [0001] The invention relates to a testing and sorting device for thermistors. Background technique [0002] For a long time, people have relied on manual or semi-automatic testing methods to test diode thermistors. [0003] The manual test method is to use a resistance meter, put the diode-type thermistors into the constant temperature bath, and take them out one by one for testing. This method has high labor intensity and low efficiency. One person can test about 10,000 pieces per shift. Each person has a constant temperature bath and tester, which consumes a lot of electricity, has low equipment utilization, occupies a lot of land, and costs high for testing. Moreover, the temperature measurement range of this method is narrow, and the test above 50°C and below 15°C cannot be carried out. Due to the large influence of human factors, the error rate is high. In addition, the operator faces the hot oil used for constant temperature at close range for a long ...

AI Technical Summary

Problems solved by technology

The test device used in this method is small in size and low in cost. Compared with the manual test method, the speed is slightly improved, and the output per person per shift is about 20,000 pieces, but the shortcomings of test accuracy and labor intensity have not been improved.

In addition, the operator has to directly contact the constant temperature oil with his hands during operation, which is more harmful to the human body than the manual test, and the temperature range of the test is narrower. The temperature test can only be carried out at 15°C to 30°C, and the ambient temperature is required to be stable.

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