Abstract: A new mechanism including a tilting minute adjustable major axis
word-holder and a fine feed device driven by piezocrystal
actuators is put forward. A central spherical bearing structure
is adopted to increase the rigidity of work-holder and a
close-loop control feed device is used to improve the feed
accuracy of diamond tool. Testing results demonstrate that the
new mechanism can satisfy the needs of precision cutting of
miniature lens.
Key words: Fine-feed Piezocrystal actuator Hard-brittle material Diamond cutting
*
This project
is supported by Foundation of National Education Ministry for students
and visitation scholars returned from abroad. Manuscript received on
November 10, 1998; revised manuscript December 24, 1998
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