Numerical control device

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 10625355
APP PUB NO 20180281090A1
SERIAL NO

15521786

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A numerical control apparatus includes: a drive unit controlling a main shaft rotating a workpiece, a first drive shaft feeding a cutting tool relatively to the workpiece along a perpendicular direction to a lead direction of a thread, and a second drive shaft feeding the cutting tool relatively to the workpiece along the lead direction; and a vibration unit superimposing, on movement of the first drive shaft, vibration having a period having a predetermined ratio with a rotation period of the main shaft, and forms a thread on the workpiece by moving the cutting tool and the workpiece relative to each other and performing cut processes on the workpiece. The numerical control apparatus includes a thread-cutting vibration adjustment unit controlling the drive unit to shift phase of the vibration with respect to phase of the main shaft by a predetermined vibration phase shift amount every time in the cut processes.

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Patent Owner(s)

Patent OwnerAddress
MITSUBISHI ELECTRIC CORPORATION7-3 MARUNOUCHI 2-CHOME CHIYODA-KU TOKYO 1008310 JAPAN
CITIZEN WATCH CO LTDTOKYO JAPAN TOKYO METROPOLIS
CITIZEN MACHINERY CO LTD4107-6 OAZA-MIYOTA MIYOTAMACHI KITASAKU-GUN NAGANO 389-0206

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hirata, Yuki Aichi, JP 14 60
Nakaya, Takaichi Nagano, JP 22 83
Sagasaki, Masakazu Tokyo, JP 33 204
Sannomiya, Kazuhiko Nagano, JP 18 86
Watanabe, Mitsuo Tokyo, JP 131 1615

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