COPY CONTROL DEVICE

Title:

COPY CONTROL DEVICE

Document Type and Number:

WIPO Patent Application WO/1992/019418

Kind Code:

A1

Abstract:

A copy control device for always eliminating the bite-in of a cutter head irrespective of the copying speed. A cutter head is moved on the basis of the displacements of respective axes of a stylus provided on a tracer head (41) to thereby machine a work. The tracer head (41) is driven in directions of the respective copy axes by a motor (31) other than a motor for driving the cutter head, independently of the cutter head. A calculating means (6) calculates an actual position of the tracer head (41). A speed command at the center of a cutter of the cutter head is corrected according to a relative displacement between the stylus and tracer head (41) by a correcting means (7) on the basis of the actual position of the tracer head (41) and the respective axis displacements of the stylus. With this arrangement, the position of the center of the cutter head can be controlled to coincide with the center position of the stylus at all times.

Inventors:

MATSUURA HITOSHI (JP)
NAKAJIMA OSAMU (JP)
OKAMOTO TETSUJI (JP)

Application Number:

PCT/JP1992/000516

Publication Date:

November 12, 1992

Filing Date:

April 21, 1992

Export Citation:

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Assignee:

FANUC LTD (JP)

International Classes:

B23Q35/121; B23Q33/00; (IPC1-7): B23Q35/121

Foreign References:

JPH0386446A	1991-04-11
JPH0386447A	1991-04-11
JPS59192446A	1984-10-31
JPH032624B2	1991-01-16

Other References: