On-off tester for testing terminal blocks

Abstract

According to an on-off tester for testing terminal blocks, a first cylinder on a platform support presses a connection terminal shell of a terminal block product to be tested; a lead end is in matching and inserting communication with a lead end connecting jig; and a second cylinder detection probe is in contact and is conducted with a press connecting bolt to form a detection loop, wherein whether a product is qualified or not is judged by an on-off condition of the detection loop. When a product is qualified, a magnetic switch sends a starting signal to a PLC controller; a third cylinder marks a side surface of a terminal end of the terminal block product to be tested with dots; a first cylinder and a second cylinder are released and retraced; and the qualified product which is marked with dots can enter a next process. Unqualified products are continuously pressed by the first cylinder and the second cylinder, the unqualified products can be taken out only by manually pressing a reset button, and the unqualified products are not marked with dots, so that the unqualified products are easy to distinguish and cannot enter the next process. The test result is accurate, and reliability of the product quality is improved. Professional wire testing instruments do not need to be purchase, and the on-off tester has a simple structure, is convenient to operate, and is low in production, manufacture, use and maintenance cost.

Description

technical field [0001] The invention relates to an on-off testing machine for connecting terminal blocks. Background technique [0002] Industrial electrical and household appliances often need to be electrically connected through terminal blocks. The terminal blocks need to be tested for functionality before leaving the factory. For example, the terminal block with leads used for the electrical connection of Daikin air conditioners. The testing instrument touches both ends of the product separately, and performs a functional test on the product through the test program preset by the wire testing instrument. When the product function is qualified, the testing instrument displays the test result through the words "PASS" or "FALL" in the display window. On the one hand, the equipment cost Expensive, high cost investment. On the other hand, there is no interlocking structure during the test process, which is prone to misoperation, so that NG products are regarded as OK products...

AI Technical Summary

Problems solved by technology

[0002] Industrial electrical and household appliances often need to be electrically connected through terminal blocks. The terminal blocks need to be tested for functionality before leaving the factory. For example, the terminal block with leads used for the electrical connection of Daikin air conditioners. The testing instrument touches both ends of the product separately, and performs a functional test on the product through the test program preset by the wire testing instrument. When the product function is qualified, the testing instrument displays the test result through the words "PASS" or "FALL" in the display window. On the one hand, the equipment cost Expensive, high cost investment. On the other hand, there is no interlocking structure during the test process, which is prone to misoperation, so that NG products are regarded as OK products and flowed into the subsequent process, which affects the accuracy of test results and causes hidden dangers in product quality; and traditional In the test method, there is no corresponding positioning structure at both ends of the terminal block with lead wires, and it needs to be manually operated to contact the test probe of the wire testing instrument, which is inconvenient to operate and low in efficiency.

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