SYSTEM FOR RETURNING TO ORIGIN

Title:

SYSTEM FOR RETURNING TO ORIGIN

Document Type and Number:

WIPO Patent Application WO/1986/000728

Kind Code:

A1

Abstract:

A system for returning to the point of origin, a mechanical moving part equipped with a dog. The mechanical moving part is, first, moved in the direction of the dog. When a switching signal (SD)caused by the dog is detected, the mechanical moving part is stopped and is reversely rotated. When the switching signal (SD) is received again, the mechanical moving part is moved by a first predetermined distance (L) and is stopped. The moving part is then moved in the opposite direction by a second predetermined distance$(1,3)$which is shorter than the first predetermined distance (L) and is stopped. The moving part is then moved at a slow speed. After the switching signal produced by the dog has been detected, the mechanical moving part is stopped by the initial one-turn signal of a servo motor which operates the mechanical moving part.

Inventors:

TOYODA KENICHI (JP)
SAKAKIBARA SHINSUKE (JP)
ISHIKAWA HARUYUKI (JP)

Application Number:

PCT/JP1985/000395

Publication Date:

January 30, 1986

Filing Date:

July 12, 1985

Export Citation:

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Assignee:

FANUC LTD (JP)

International Classes:

B23Q15/00; G05D3/12; G05B19/23; G05B19/401; (IPC1-7): G05B19/18

Foreign References:

JPH05221153B
JPS499549B1	1974-03-05

Other References: