Device for automatic calibration of thickness of magnetorheological finishing ribbon

A technology of magnetorheological polishing and automatic calibration, which is applied in the direction of instruments, computer control, simulators, etc., to achieve high-safety automatic measurement and calibration, low cost, and convenient operation

Pending Publication Date: 2018-02-16
INST OF MACHINERY MFG TECH CHINA ACAD OF ENG PHYSICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of accurate measurement and automatic calibration of the thickness of the polishing satin ribbon in the magnetorheological polis

Method used

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  • Device for automatic calibration of thickness of magnetorheological finishing ribbon
  • Device for automatic calibration of thickness of magnetorheological finishing ribbon

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Embodiment 1

[0017] Such as figure 1 As shown, the present invention is a device for automatically calibrating a magneto-rheological polishing ribbon, including a cylinder 4, an MCP measuring head 5, a calibrating block 7, a 5V DC power supply 11, an indicator light 10, a relay 12, a switching power supply 13 and signal terminals 14. The connection relationship is that the calibration block 7 has electrical conductivity and is placed on the workpiece 1. The polishing liquid in the nozzle 9 acts on the polishing wheel 1 to form a polishing ribbon 6, and the polishing ribbon 6 is in contact with the calibration block 7. , the calibration block 7 is electrically connected to the polishing wheel 1, and when the polishing ribbon 6 is not in contact with the calibration block 7, the calibration block 7 and the polishing wheel 1 are not electrically connected. The cylinder 4 is installed and fixed on the polishing wheel mounting bracket 2, and the piston rod of the cylinder 4 rises and falls unde...

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Abstract

The present invention provides a device for automatic calibration of thickness of magnetorheological finishing ribbon. The device comprises a cylinder and an MCP probe; relative positions of a workpiece and a calibration block relative to a bottom portion of a polishing wheel can be automatically measured; conductivity of a magnetorheological fluid is employed to perform contact measurement; a finishing ribbon is in flexible contact with the conductive calibration block arranged on the workpiece to form a current loop and generate conduction signals; and a computer obtains relative positions of the calibration block and the bottom portion of the finishing ribbon when the finishing ribbon is in flexible contact with the conductive calibration block so that automatic measurement of thicknessof the finishing ribbon is realized. The problems are solved that a manual mode is employed to measure and calibrate thickness of a finishing ribbon in the prior at so that the measurement precisionis not high, the efficiency is low and a potential risk is large, automatic measurement and calibration with high precision, high efficiency and high safety of thickness of the finishing ribbon can berapidly achieved with the low cost, and therefore magnetorheological finishing quality and efficiency can be improved.

Description

technical field [0001] The invention belongs to the field of optical element polishing, and in particular relates to a device for automatically calibrating the thickness of a magnetorheological polishing ribbon. In the magnetorheological polishing process, the invention can realize the automatic measurement and calibration of the thickness of the magnetorheological polishing satin ribbon. Background technique [0002] Magneto-rheological polishing technology generally adopts CCOS technology, that is, computer-controlled small tool optical surface processing technology. It uses the high stability of the polishing removal function to achieve precise and deterministic removal of optical materials, and can obtain high-precision types below tens of nanometers with high efficiency. Surface, nano-scale surface quality and almost no sub-surface defects, which can well meet the processing requirements of optical components in the fields of aerospace, aviation and national defense. ...

Claims

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Application Information

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IPC IPC(8): G05B19/401
CPCG05B19/4015G05B2219/37398Y02P70/10
Inventor 陈华张连新何建国郑永成陈苓芷唐小会黄文刘坤罗清周涛
Owner INST OF MACHINERY MFG TECH CHINA ACAD OF ENG PHYSICS
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