DIGITALLY CONTROLLED SCREW THREAD CUTTING DEVICE

Title:

DIGITALLY CONTROLLED SCREW THREAD CUTTING DEVICE

Document Type and Number:

WIPO Patent Application WO/1982/002162

Kind Code:

A1

Abstract:

A digitally controlled screw thread cutting device which can start cutting threads from an arbitrary position of rotation of the spindle. This device comprises thread cutting starting position indexing means for comparing the spindle rotational position detected by spindle rotational position detecting means with a predesignated rotational position to start cutting threads and starts feeding a cutter synchronized with the revolution of the spindle into a workpiece when the two positions of rotation coincide with one another. This device can thus cut special threads such as multiple screw threads and the like simply.

Inventors:

NOZAWA RYOICHIRO (JP)
KAWAMURA HIDEAKI (JP)
MIYATA MITSUTO (JP)

Application Number:

PCT/JP1981/000381

Publication Date:

July 08, 1982

Filing Date:

December 16, 1981

Export Citation:

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Assignee:

FUJITSU FANUC LTD (JP)
NOZAWA RYOICHIRO (JP)
KAWAMURA HIDEAKI (JP)
MIYATA MITSUTO (JP)

International Classes:

B23G1/02; G05B19/18; G05B19/4103; (IPC1-7): B23G3/00

Foreign References:

US4019035A	1977-04-19
JPS53141990A	1978-12-11
JPS5326579U	1978-03-07

Other References: