Study of On-line Grinding Processing Dimensions Control Based on the Active Measurement

Abstract

Active measurement technology has been widely used in precision grinding. To solve the problem that gross error in measured value in the grinding active measurement, which has a great influence on the signal point preset value to the workpiece determination. Firstly, the sampling data is limited to the amplitude filter to get rid of gross errors. Since the above, a method based on roundness error is proposed to determine the dimension. The experiment proves that the error in the determination of the dimension of grinding active measuring instrument is mainly caused by the error of roundness; The correction method based on roundness make the absolute value of the deviation of size is not more than 0.5um and it has effectively reduced the influence of roundness error on the size determination. The experiment proves that the method is reasonable and feasible.