Abstract
Contact force control is one of the key technologies of polishing aspheric optical parts, and keeping a stable polishing contact force on the basis of accurate position control is an important condition to obtain high quality aspheric. The paper bases on ideal surface, decouples the contact force that between polishing tool and workpiece in each direction of the drive shaft in process of polish. Then get output force of all sports shaft. Finally, realize the polishing contact force control that take the position as a control goals, and take constant force output as a constraints. Simulation results show that the control method can achieve constant contact force output in the processing of polishing free-form surface, which provide a new idea to research the compliant control of polishing free-form surface.
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