Crankshaft Roundness Tracing Measurement Method in Noncircular Grinding Process

Researches are presented for the tracing measurement method of crankshaft roundness error during noncircular grinding process. This paper makes a detailed study on the tracing motion equations of the measurement system and also describes the constraint condition of uniform sampling. For improving the in-situ measurement precision, the three-sensor tracing roundness error separation principle is proposed under motion stage. The in-situ measurement system is developed based on the LabVIEW. The examination proves the validity of tracing measurement method of crankshaft roundness error during noncircular grinding process.