Title:
GEAR SHAPING MACHINE
Document Type and Number:
WIPO Patent Application WO/2011/096104
Kind Code:
A1
Abstract:
The vertical movement cycle and the movement trajectory inclination angle of a cutter (114) are switched so that when a main spindle (113) is moving downward, a head (112) is moved so as to position the cutter (114) at a machining location, and the cutter (114) is lowered rectilinearly; that when the main spindle (113) is moving upward, the head (112) is moved so as to position the cutter (114) at a withdrawal location; that, furthermore, when an external gear is to be generated by cutting, relieving means (117, 118, 120,121) for rectilinearly raising the cutter (114) cause the machining location to be positioned on one radial side of the cutter (114) and move the cutter (114) downward parallel to the axis of a workpiece (1A); and that, meanwhile, when an internal gear is to be generated by cutting, said relieving means (117, 118, 120,121) cause the machining location to be positioned on the other radial side of the cutter (114) and move the cutter (114) downward parallel to the axis of the workpiece (1A).
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Inventors:
MARUYAMA Kazutaka (16-5, Konan 2-chome, Minato-k, Tokyo 15, 〒1088215, JP)
Application Number:
JP2010/065463
Publication Date:
August 11, 2011
Filing Date:
September 09, 2010
Export Citation:
Assignee:
MITSUBISHI HEAVY INDUSTRIES, LTD. (16-5, Konan 2-chome Minato-k, Tokyo 15, 〒1088215, JP)
三菱重工業株式会社 (〒15 東京都港区港南二丁目１６番５号 Tokyo, 〒1088215, JP)
三菱重工業株式会社 (〒15 東京都港区港南二丁目１６番５号 Tokyo, 〒1088215, JP)
International Classes:
B23F5/16
Attorney, Agent or Firm:
MITSUISHI Toshiro et al. (Mitsuishi Law and Patent Office, 9-15 Akasaka 1-chome, Minato-k, Tokyo 52, 〒1070052, JP)
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Claims: