Two-degree-of-freedom driver with both rotation and linear motion and control method thereof

Abstract

The invention discloses a two-degree-of-freedom driver with both rotation and linear motion and a control method thereof, and belongs to the technical field of precision machining. The two-degree-of-freedom driver comprises a rear end cover, a stator, a rotor and a coil winding, wherein the rear end cover is of a disc-shaped structure, uniformly provided with 6 through holes at the periphery and fixed on the stator by screws, the center of the disc is provided with a through hole which is used for placing a rolling bearing, the stator is uniformly provided with 6 convex strips along the innercircumference, the stator is uniformly provided with 6 threaded holes on one end face and connected with the rear end cover by screws, the convex strips are provided with grooves at the end close to the threaded holes, there is a stator threading hole near the grooves, the coil winding is wound on 6 bosses of the stator and extracted through the stator threading hole, and the rotor is installed onthe rear end cover through a bearing. The rotation speed of the rotor is controlled through regulating the size of current introducing into the coil winding and the electrification interval time, andthe linear motion displacement of the driver is controlled through regulating the size of current introducing into a solenoid coil inside the rotor, thereby being capable of simultaneously realizingrotation and linear motion.

Description

technical field [0001] The invention belongs to the technical field of precision machining, and in particular relates to a driver with two degrees of freedom of rotation and direct motion and a control method thereof. Background technique [0002] The number of degrees of freedom is one of the main indicators for evaluating the performance of precision machining equipment. The more degrees of freedom of precision machining equipment, the finer the processed products. At present, in order to increase the degree of freedom of precision machining equipment, the method of directly adding linear drives or rotary motors to the existing equipment is generally adopted, which undoubtedly increases the volume and quality of precision machining equipment and improves its processing performance. lowered. For example: the cutting tool of CNC machine tool will be worn during the processing, and the worn tool will increase the processing error during the processing process. As the degree ...

AI Technical Summary

Problems solved by technology

For example: the cutting tool of the CNC machine tool will be worn during the machining process, and the worn tool will increase the machining error during the machining process. With the intensification of tool wear, the machining error of the CNC machine tool will become larger and larger

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