Controllable multi-dimensional ultrasonic ELID composite internal grinding test device

Abstract

The invention discloses a controllable multi-dimensional ultrasonic ELID composite internal grinding test device. The device comprises a worktable and a machine tool main shaft; the lower end of the machine tool main shaft is coaxially connected with a shank; a Z-direction ultrasonic vibration system is arranged at the lower part of the shank; an ELID online finishing device is arranged on the right side of the Z-direction ultrasonic vibration system; a fixed plate is horizontally arranged on the upper surface of the worktable; a rotating shaft is arranged at the middle part of the fixed plate; the lower end of the rotating shaft is rotationally connected with the fixed plate; the upper end of the rotating shaft is fixedly connected with a turntable parallel to the fixed plate; the fixed plate is provided with a motor positioned on one side of the rotating shaft; the turntable is provided with an X-direction ultrasonic vibration system and a Y-direction ultrasonic vibration system; a circular tray is arranged above the turntable; a circular chuck is arranged in the center of the circular tray; and a computer control system is arranged on the right side of the worktable. The device is convenient for adjustment, reliable in performance, economical and practical, is suitable for ultraprecise machining of hard and brittle materials, and can realize compounding of multi-dimensional ultrasonic vibration and ELID grinding technology.

Description

technical field [0001] The invention belongs to the technical field of grinding test devices, in particular to a controllable multi-dimensional ultrasonic ELID composite internal grinding test device. Background technique [0002] Hard and brittle materials such as optical glass and engineering ceramics have the characteristics of high temperature resistance, wear resistance, chemical corrosion resistance, high temperature creep resistance, and low thermal expansion coefficient. meaning. However, due to the difficult-to-process characteristics of this material, such as high brittleness, it is easy to produce various types of damage during processing, which limits its application. In order to solve these problems, many researchers have studied the efficient ultra-precision machining methods of such hard and brittle materials in recent years, such as the prestressed processing method of hard and brittle materials, magnetic polishing technology, ultrasonic ELID processing tech...

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Problems solved by technology

However, although the multi-dimensional ultrasonic vibration grinding technology has superior comprehensive processing performance, it still has certain technical difficulties, such as unstable vibration speed when the load, temperature and other conditions change, difficulty in applying ultrasonic vibration, and problems in ultrasonic machining. The resonance frequency drifts, the vibration amplitude decreases, the processing efficiency decreases, and the processing quality is unstable. The adjustment of its resonance state involves a series of problems such as the matching of multiple ultrasonic generators, transducers, tools and workpieces, which is difficult to implement manually.

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