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Proceedings Paper

Improving high-speed flat lapping machine with NC
Author(s): Jiandong Yang; Jiawu Song; Xueqian Li; Lijiang Wang
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Paper Abstract

This paper discusses the improvement of high speed flat lapping machine with grating measuring length system and an MCS-51 single chip computer, which makes the machine possesses the ability of measuring and controlling for lapping quantity and improves the machine property and machining accuracy. The original size and need size of workpiece are known. The difference between of them is lapping quantity (before lapping) is input into the computer. In lapping the grating measuring length system on- line measures the lapping quantity, the computer compares the measured lapping quantity with l, makes a decision according to the comparing result and decides whether to stop the machine. When the measured lapping quantity equals l, it is expressed that the workpiece is lapped to required size, the computer makes the machine stop, which assures the workpiece size accuracy automatically, improves machine automaticity and makes up the disadvantages that an ordinary flat lapping machine can not control the lapping size effectively. Through experiments it is found that measuring and controlling accuracy of improved lapping machine is +/- 2 micrometers .

Paper Details

Date Published: 5 August 1998
PDF: 5 pages
Proc. SPIE 3557, Current Developments in Optical Elements and Manufacturing, (5 August 1998); doi: 10.1117/12.318308
Show Author Affiliations
Jiandong Yang, Changchun Institute of Optics and Fine Mechanics (China)
Jiawu Song, Changchun Institute of Optics and Fine Mechanics (China)
Xueqian Li, Changchun Institute of Optics and Fine Mechanics (China)
Lijiang Wang, Jilin Univ. of Technology (China)

Published in SPIE Proceedings Vol. 3557:
Current Developments in Optical Elements and Manufacturing
Qiming Xin; Robert E. Parks, Editor(s)

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