Bridge rectifier automatic testing machine

Abstract

The invention discloses a bridge rectifier automatic testing machine, which comprises a testing feeding rail, a stepping motor, a feeding mechanism, a data acquisition instrument and a testing mechanism, wherein the testing feeding rail is in an annular structure which is driven to cyclically rotate by the stepping motor; limiting grooves are distributed on the surface of the testing feeding rail at intervals; the limiting grooves are matched with a plastic package body of a bridge rectifier in shape; the material outlet of the feeding mechanism corresponds to the limiting grooves; the testing mechanism comprises a primary testing mechanism and a secondary testing mechanism, and each set of the testing mechanisms is composed of a testing instrument, two cylinders and testing probes; the two cylinders are arranged at two sides of the limiting grooves; the testing probes are fixed at the ends of cylinder pistons, and correspond to testing points on bridge rectifier pins; and each of the testing instruments is connected with each of the testing probes. According to the bridge rectifier automatic testing machine, the pins of the bridge rectifier to be tested are vertically distributed upwards, so that the primary performance testing and secondary testing of the bridge rectifier are automatically completed in one time; and therefore, the accuracy and reliability of the testing are guaranteed, and the testing efficiency is greatly improved.

Description

technical field [0001] The invention relates to a testing device, in particular to a bridge pile automatic testing machine. Background technique [0002] In the production of bridge stacks, the produced bridge stacks need to undergo a secondary performance test, that is, preliminary testing and retesting, and can only be sold after passing the test. At present, because the bridge stack has at least four pins, the bridge stack The test method is mainly to manually insert the products into the shrapnel test tool one by one. After a batch of tests are completed, retests will be carried out, resulting in extremely low overall production efficiency of the bridge stack, and manual operation can not only guarantee the reliability of the test, It is also easy to cause defective products to be missed or misplaced. At the same time, manual testing is used, which has high labor intensity, low testing efficiency, and high production costs. [0003] In order to solve the above problems,...

AI Technical Summary

Problems solved by technology

But in actual use, this patent still has the following defects: one, the pins of the bridge stack are arranged horizontally during the test, and the test probe is pressed from top to bottom on the pins of the bridge stack to be tested. To complete the test of the upper layer pins arranged horizontally, it is necessary to repeat the above steps to test the lower pins again, which has a narrow scope of application and low test efficiency; two, the initial test and retest cannot be carried out at the same time, and the test efficiency is low; three, when When the test encounters defective products, there is no special collection box for defective products, which will easily lead to the mixing of defective products and qualified products; 4. During the test, the inverted "V" groove connected to the piston shaft is driven by the test cylinder to move downward, and The bridge stack is put into the inverted "V" groove for testing, and the bridge stack is not limited during the process of transporting the bridge stack to the test position. Therefore, the bridge stack is easy to fall from the conveying track, and it cannot be guaranteed The bridge stack can be incorporated into the same position in the inverted "V" groove, and the test probe may not touch the pin test point at the same time or the test probe touches its position, not only the accuracy of the test is low, but also the test Equipment misjudgment

But this scheme can't be applied to the test to the square bridge stack in this field at all, thus still has not solved the above-mentioned existing problem

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