SCREW-ROTOR MACHINING DEVICE AND MACHINING THEREOF

Title:

SCREW-ROTOR MACHINING DEVICE AND MACHINING THEREOF

Document Type and Number:

Japanese Patent JP3473147

Kind Code:

B2

Abstract:

PURPOSE: To enable any type of groove shape machining in machining of a screw rotor having a screw groove, without replacing a cutting edge and to shorten a machining time with an idle cutting motion reduced as for as possible.
CONSTITUTION: A work 71 is fitted to a main spindle of rotation via a chuck, and the cutting edge 76 and 77 are put foward to an rotation axis direction 74 or 75 in synchronization with the rotation of a main spindle. To reduce a cutting load, a sufficiently small cutting edge as compared with a desiable groove shape 72 is moved along a groove shape of target. Machining of a complicated groove shape becomes practicable by controling the movement of the edge with a numerical value controlling device. A reciprocating cutting is also possible by forming a pair with the edges 76, 77 in oposition to each other.

Inventors:

Hisashi Aoki
Koichi Hiraoka
Hideo Okada
Hirohiko Makino
Masaoka Tomioka

Application Number:

JP1128595A

Publication Date:

December 02, 2003

Filing Date:

January 27, 1995

Export Citation:

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