Two-dimensional ultrasonic vibration polishing device and method

Abstract

The invention relates to a two-dimensional ultrasonic vibration polishing device and a two-dimensional ultrasonic vibration polishing method, and belongs to the technical field of machine manufacturing. A two-dimensional ultrasonic vibration polishing tool is fastened to the z-axis of a machine tool by screws; a workpiece fixture is fastened to the x-axis of the machine tool by the screws; and the x-axis, the y-axis and the z-axis of the machine tool are fixedly connected with a machine tool main body after debugging. The two-dimensional ultrasonic vibration polishing device provides elliptical vibration in a polishing tangent plane, vibration signals of an x-direction ultrasonic vibrator and a y-direction ultrasonic vibrator are coupled to form two-dimensional vibration at a pivoting joint, and are output to a polishing head, the polishing head acquires a perfect instantaneous random motion track in a processing area, and motion composited by the vibration is polishing primary motion, so that a polishing force can be controlled to be stable on the premise that no polishing head rotates; the polishing head has high profile modeling capability, so that various complicated curved surfaces can be processed; deterministic polishing is realized; stable and uniform removal of a polishing material is realized; and high-efficiency and high-quality polishing can be realized simply by controlling the polishing force.

Description

Technical field [0001] The invention belongs to the technical field of mechanical manufacturing. Background technique [0002] Polishing is the last process of ultra-precision machining. The contradictory propositions of efficiency and precision have always restricted the development of polishing, while elliptical vibration polishing has taken into account these two contradictory propositions. Since Junichiro Kumabe creatively applied vibration cutting to mechanical processing in the 1960s, vibration-assisted processing has become more and more popular among cutting researchers. From one-dimensional vibration to two-dimensional vibration-assisted polishing, aiming to improve efficiency and processing quality, the application of ultrasonic polishing is becoming more and more extensive. [0003] Most of the ultrasonic machining used in polishing are auxiliary polishing methods, which are often combined with rotary machining or special machining. For example, the publication number C...

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Problems solved by technology

[0006] The invention provides a two-dimensional ultrasonic vibration polishing processing device and method to solve the problems of uncertain polishing, unstable polishing force and limited processing surface shape

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