Vibration auxiliary rotation cutting device based on acute angle straight plate type flexible hinge

Abstract

The invention relates to a vibration auxiliary rotation cutting device based on an acute angle straight plate type flexible hinge, and belongs to the technical field of superfine milling processing. A piezoelectric stack I and a piezoelectric stack II are respectively mounted on a flexible device platform by using a pretightening screw I and a pretightening screw II; a capacitance type displacement measurement baffle plate I and a capacitance type displacement measurement baffle plate II are respectively connected with the flexible device platform by using fastening screws; the capacitance type displacement measurement baffle plate I and the capacitance type displacement measurement baffle plate II are respectively mounted on capacitance type displacement sensor clamp bases by using fastening screws; the capacitance type displacement sensor clamp bases are mounted on the flexible device platform by using fastening screws; a diamond cutter is fixedly connected with the flexible hinge platform through fastening screws; the flexible hinge platform is connected with a mounting base through fixing screws. The vibration auxiliary rotation cutting device has the advantages of being novel in structure, periodic scallop height in the ellipse vibration cutting process can be eliminated, and relatively high control precision of the flexible device can be achieved.

Description

technical field [0001] The invention belongs to the technical field of ultra-precision turning processing and turning processing of complex optical parts of difficult-to-machine materials, and particularly relates to a vibration-assisted rotary cutting device based on an acute-angle straight plate type flexible hinge. Background technique [0002] In recent years, the continuous development of precision and ultra-precision machining technology has been successfully applied in many fields, such as: micro-electromechanical systems, aerospace parts processing, biomedicine, bionics, etc., machining accuracy in different fields and machinability of applied materials , is a challenge to ultra-precision machining, especially in the complex surface machining of difficult-to-machine materials, the traditional cutting method can no longer meet the application requirements, and the Elliptical Vibration Cutting (Elliptical Vibration Cutting EVC) is developed on this basis It has been wi...

AI Technical Summary

Problems solved by technology

[0004] While the research on EVC is gradually improving, it also encounters a technical bottleneck. The tool residual height between adjacent tracks cannot be eliminated, which limits the further improvement of EVC machining accuracy. Although this limitation can be alleviated by increasing the cutting frequency, the frequency The higher the cutting speed, the more epigenetic motion is brought, which makes the control more difficult. Therefore, it is imperative to study a processing method that not only has the advantages of EVC cutting but also overcomes the limitations of EVC.

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