Parallel driving vibration-assisted rotary turning device and method

A technology of auxiliary rotating and cutting device, applied in the field of parts processing, can solve the problems of tool wear, high hardness, low fracture toughness, etc.

Active Publication Date: 2017-12-01
CHANGCHUN UNIV OF TECH
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  • Application Information

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Problems solved by technology

But at the same time, this type of material has high hardness and low fracture toughness, and the tool wears seriously during the processing, resulting in a decrease in the surface quality of the workpiece.
In recent years, experts and scholars all over the world have devoted themselves to the research of a high-efficiency processing technology for difficult-to-machine materials. The elliptical vibration cutting is developed on this basis. The intermittent cutting and friction reversal characteristics of the elliptical vibration cutting make it a It is recognized as the most promising way to efficiently process difficult-to-machine materials, but because the vibration marks between adjacent tracks cannot be eliminated, it has become a bottleneck restricting its further development. Vibration-assisted rotary cutting machining is based on elliptical vibration-assisted Developed on the basis of cutting, it not only absorbs the advantages of elliptical vibration cutting, but also aims to solve the above problems of ellipse to improve processing efficiency and quality

Method used

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  • Parallel driving vibration-assisted rotary turning device and method
  • Parallel driving vibration-assisted rotary turning device and method
  • Parallel driving vibration-assisted rotary turning device and method

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Embodiment 1

[0081] The invention provides a parallel-driven vibration-assisted rotary turning device, which is a parallel-driven vibration-assisted rotary turning device based on an L-shaped flexible hinge. See Figure 1-5 , install the piezoelectric stack one 10 and the piezoelectric stack two 6 on the flexible device platform 4 with the piezoelectric stack pre-tightening screw one 11 and the piezoelectric stack pre-tightening screw two 5 respectively; the capacitive displacement measurement baffle One 8 and capacitive displacement measuring baffle plate two (not marked in the figure) are respectively connected with the flexible device platform 4 with fastening screws; capacitive displacement sensor one 7 and capacitive displacement sensor two (not marked in the figure) are installed correspondingly On capacitive displacement sensor clamp seat 1, capacitive displacement sensor clamp seat 2 (not marked in the figure); capacitive displacement sensor clamp seat 1, capacitive displacement sen...

Embodiment 2

[0090] In another aspect, a parallel drive vibration assisted rotary turning method is provided, see Figure 6-9 , the vibration-assisted diamond tool rotary cutting device designed in this application is driven by two parallel piezoelectric stacks, and the driving signal of the piezoelectric stack needs to be model converted to achieve the ideal rotary turning trajectory. The diamond tool The knife position point is regarded as point O T , the driving points of the two piezoelectric stacks are A and A 1 , where A is at a point in the positive direction of x, A 1 A point in the negative direction of x that simplifies the rotation device to a rod.

[0091] First, the angle-position model of the vibration-assisted diamond tool rotary cutting device is established. In this paper, the angle-position model of the vibration-assisted diamond tool rotary cutting device is established, and then the trajectory model of the vibration-assisted diamond tool rotary cutting device is obtai...

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Abstract

The invention discloses a parallel driving vibration-assisted rotary turning device and method. The device comprises a flexible device platform, a first piezoelectric stack and a second piezoelectric stack. The first piezoelectric stack is installed on the flexible device platform through a first piezoelectric stack pre-tightening screw, and the second piezoelectric stack is installed on the flexible device platform through a second piezoelectric stack pre-tightening screw. A first capacitance displacement measurement baffle and a second capacitance displacement measurement baffle are connected with the flexible device platform through fastening screws correspondingly. A first capacitance displacement sensor and a second capacitance displacement sensor are correspondingly installed on a first capacitance displacement sensor clamping seat and a second capacitance displacement sensor clamping seat. By means of the parallel driving vibration-assisted auxiliary turning device and method, L-shaped straight panel flexible hinges are adopted, and therefore the beneficial effects that the structure is novel, flexibility is good, symmetric distribution is formed, the precision of micro-displacement movement is easy to control, and the rotation track in a tool movement platform space of the device is easy to control are achieved.

Description

technical field [0001] The invention relates to the technical field of part processing, in particular to a parallel-driven vibration-assisted rotary turning device and method. Background technique [0002] Silicon carbide, ceramics and other hard and brittle materials are widely used in the technical fields of ultra-precision cutting and complex optical parts processing of difficult-to-machine materials due to their advantages of wear resistance, corrosion resistance, biocompatibility and high temperature stability. But at the same time, this type of material has high hardness and low fracture toughness, and the tool wears severely during the processing, resulting in a decrease in the surface quality of the workpiece. In recent years, experts and scholars all over the world have devoted themselves to the research of a high-efficiency processing technology for difficult-to-machine materials. The elliptical vibration cutting is developed on this basis. The intermittent cutting...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23B5/00B23B25/00B28D1/16
CPCB23B5/00B23B25/00B28D1/16
Inventor 卢明明林洁琼赵东坡周刚王浩陈斌谷岩韩金国
Owner CHANGCHUN UNIV OF TECH
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