Testing method for precision parts processing

When machining precision parts, roundness measurement method and two-point method and three-point method can be used for testing. The circular instrument law is to place the measured part on the workbench of the circular instrument, right the rotation center line, and make the circular instrument probe contact and rotate in contact with the inner hole of the workpiece. Based on sensors, amplifiers, filters, and measurement power circuits, the accurate measurement results are finally displayed. If the output is a specific outline diagram, an incisive circle template can be used to use the difference in the radius of the two tolerant circles as the circularity error of a certain section. This instrument is suitable for components with high measurement accuracy requirements.

Which precision parts processing is the best

If the measured contour is an odd-numbered circular shape, the roundness error cannot be measured by the two-point method. At this time, the three-point method can be used for accurate measurement. The workpiece to be tested is supported with a V-shaped bracket, and the large error caused by the rotation of the product workpiece is measured with an indicator, and it is taken as the circularity error of the cross-section. Commonly used V-shaped crossing angles α are 60 degrees, 72 degrees, 90 degrees, 108 degrees and 120 degrees, respectively. The three-point method can also be used for high-precision precise measurement in precision parts processing.

The above explains the inspection method for precision parts processing. I hope it will be helpful to you after reading it. If you want to know more about precision parts processing, please consult customer service online or call our service hotline. .