Inertial force control and balance error analysis of fast tool servo based on the voice coil motor

With the development of optoelectronics, Non-Rotationally Symmetric Surface (NRS surface) components play a crucial and even decisive role in a series of science and technology fields, such as aerospace, military, medical, communication, which have become an irreplaceable and key parts in photoelectric products. The diamond turning of NRS components through fast tool servo (FTS) has become a key technology. This paper presents a self-designed minitype FTS used for ophthalmic progressive lens processing, optimizing the slideway via Finite Element Method (FEM) to improve the quality and reduce the inertia force, and proposes an inertial force control scheme based on spring mass to calculate the balance force, reducing the inertia force to 10%, which provides guidance for FTS manufacture.