Accuracy analysis of a precision grinding machine using a locus forming method

Abstract

In order to ensure surface shape accuracy of ground optical parts produced by locus forming factors of precision grinding machme that affects surface shape accuracy of the part are theoretically analyzed Formulas used to calculate the error that can be canceled through the machme fine adjusting device are deduced Usmg calculated error values to adjust the fme adjustmg device is able to reduce the surface shape error and then surface shape accuracy ofparts is ensured Keywords locus formmg spherical optical parts surface shape machining error precision grmdmg

Measurement of surface form deviation of the plane optical element using grid line method

“…So, the test results should be normalized by the same measured size and then the estimation of the value of N of the optical element is implemented. Under the condition of the better surface quality of an optical element, there is a mathematic relationship between the value of N 1 and the value of D (the measured diameter) [11], namely…”