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.
Patent No.:
Date of Patent:
Dec. 03, 2013
Filed:
Jun. 02, 2011
Chia-hui Tang, Taichung, TW;
Chau-shing Wang, Taichung, TW;
Yu-lin Juan, Taichung, TW;
Tsair-rong Chen, Changhua County, TW;
Paul Chang, Taichung, TW;
Chia-Hui Tang, Taichung, TW;
Chau-Shing Wang, Taichung, TW;
Yu-Lin Juan, Taichung, TW;
Tsair-Rong Chen, Changhua County, TW;
Paul Chang, Taichung, TW;
Buffalo Machinery Company Limited, Taichung, TW;
The Department of Electrical Engineering, National Chang-Hua University of Education, Changhua County, TW;
Abstract
A control system of a milling machine is disclosed. The milling machine has an overarm, a spindle connected to a cutter, a spindle motor, and an X-axis motor, a Y-axis motor and a Z-axis motor. The control system includes a vibration sensor for detecting a vibration level of the spindle. The control system also includes a central control unit configured to adjust a rotation speed of at least one of the X-axis motor, the Y-axis motor, and the Z-axis motor to bring a load current of at least one of the motors to be within a corresponding current range, and configured to adjust a rotation speed of the spindle motor to bring the vibration level to be within a vibration range.