Abstract
In this paper, the forming mechanism of the 2-D shape and position error for turning workpiece was discussed and an on-line detecting and analyzing method was designed. Firstly, two laser displacement sensors were orthogonally distributed on both sides of the workpiece to obtain the distance data from each measuring point of the rotating workpiece to the sensor. Then, according to the geometric position relationship, the synchronous error, asynchronous error and surface roughness were solved by the method of stepwise error separation, and the inverse calculation was carried out. The simulation results under different parameters were analyzed. The results show that the shape and position error obtained by the simulation method are consistent with the verification results of inverse calculation. The results of this method are relatively stable. Therefore, the simulation analysis method has good practicability and maneuverability. Finally, the feasibility and correctness of the algorithm were verified by experiments.
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