The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Mar. 22, 2011

Filed:

Nov. 11, 2009
Applicants:

Chin-mou Hsu, Taichung, TW;

Ching-yuan Lin, Taichung, TW;

En-sheng Chang, Taichung, TW;

Shih-yen Chung, Kaohsiung, TW;

Inventors:

Chin-Mou Hsu, Taichung, TW;

Ching-Yuan Lin, Taichung, TW;

En-Sheng Chang, Taichung, TW;

Shih-Yen Chung, Kaohsiung, TW;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B23C 1/12 (2006.01);
U.S. Cl.
CPC ...
Abstract

A swivel spindle head with gear device driven by multiple torque motors is disclosed, which comprises: a tool spindle, having a first shaft and a second shaft being radially disposed at two opposite sides of the tool spindle while sharing a common axial line; a plurality of torque motors, radially disposed at a side of the tool spindle; and a reduction gear set, radially disposed at a side of the tool spindle opposite to the plural torque motors, composed of a plurality of driving gears and a driven gear; wherein the amount of the plural driving gears is the same as that of the plural torque motors while enabling each of the plural driving gears to connect with a rotor shaft of its corresponding torque motor, and the same time, connecting the driven gear on the second shaft of the tool spindle.


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