How should precision pogo pin pressure test be done?

　　Precision pogo pins are used in many mechanical productions, so pressure testing is essential for pogo pins. The tension and compression effects of the pogo pins are judged by the pressure test of the pogo pins, so as to ensure that they can operate normally in the machine. , then today we will explain how the precision pogo pin pressure test is and what the steps are.

　　Steps for precision pogo pin pressure testing:

　　1. Before formally testing the precision pogo pin, compress the precision pogo pin once to the experimental load. When the test load is larger than the pressure and combined load, the combined pressure can be used as the test load, but the pressure and combined force are equivalent. The maximum can not exceed 1.5 times the fixed pressure and load.

　　2. Preparation before the load test: use the third-class standard dynamometer of the corresponding range or the weight with the accuracy of more than one to calibrate the load tester to ensure that the accuracy of the tester is not less than 1%; at the same time, use the measuring block to calibrate the load The length reading error of the testing machine.

　　3. Detection of the load when the precision pogo pin is pressed to the specified height: place the gauge block with the same height as the specified height in the center of the pressure plate of the load testing machine, load the gauge block with a load similar to the nominal value of the pattern, and then lock the set screw or Position a little, put the gauge block into the precision pogo pin to be tested, adjust the zero position, remove the self-weight of the precision pogo pin, press the precision pogo pin to the specified height, and read the corresponding load, according to the calibration error of the load tester, measure the degree Make the appropriate modifications.

　　4. Press the upper pressure plate to the position where the precision pogo pin has just been released, and the predicted value of the load tester is F0≈0.05F; record the initial reading F0 and the length number of the load test, and then continue to load, so that the predicted reading change value of the length reaches 0.05F. Delimited amount of deformation.

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