For precision rectangular die spring, we all know that many mechanical equipment are involved in a certain extent. The application of precision spring is to fully consider the working pressure of elastic yellow, so it is very necessary to carry out some level of stability testing. According to the detection of the working pressure of the elastic yellow, the actual effect of the precision spring can be distinguished and reduced, and the compressive strength of the load can be mastered.

The process of precision spring stability test:

1, rectangular mold spring manufacturers in the precision tensile spring to carry out the announcement of the test before, the precision spring will be reduced once to the test load, when the experimental load is larger than the pressure and load, you can carry out the pressure and load as the experimental load, but the compression force is very large can not exceed the proposed pressure and load

1.5 times.

2. Advance preparation before load inspection: correct the load tester with the matching measuring range of third-class standard dynamometer or standard weight with uniform precision, so as to ensure that the high precision of the tester is not less than 1%; In addition, the measuring block is used to correct the reading deviation of the load test instrument.

3, precision spring pressure to a specific aspect ratio of load test: The measuring block with a specific aspect ratio of the same is placed in the middle of the load test instrument clutch pressure plate, load a load similar to the name of the sample figure on the measuring block, then clamp the precise positioning screw or precise positioning slightly, put the measuring block into the precision spring to be measured, negotiate zero position, remove the precision spring's own weight, press the precision spring to a specific aspect ratio, and read the relative load, Relative changes were made to the degree of myopia according to the deviation of the calibrated load test instrument.

4, the upper clutch pressure plate suppression precision spring just eliminated to the part, load test instrument omen value FO ~ 0.05F; Describe the first read value of the load test and its length, and then load it again, so that the read value transformation value of the length and length omen can be a partition of the shape variable.