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:
Jul. 24, 2012
Filed:
Jul. 06, 2009
Xiao Yin Shao, Beijing, CN;
Wei Min MA, Beijing, CN;
Qing Gang Wang, Beijing, CN;
Wen Gang Shi, Beijing, CN;
Xi HU, Beijing, CN;
Jian Hui Xing, Beijing, CN;
Yue Zhuo, Beijing, CN;
Xiao Yin Shao, Beijing, CN;
Wei Min Ma, Beijing, CN;
Qing Gang Wang, Beijing, CN;
Wen Gang Shi, Beijing, CN;
Xi Hu, Beijing, CN;
Jian Hui Xing, Beijing, CN;
Yue Zhuo, Beijing, CN;
Siemens Aktiengesellschaft, München, DE;
Abstract
A method and an apparatus for quantitatively detecting the unbalanced state of a rotating shaft and a clamping state of a workpiece clamped to a shaft are disclosed by solving with a nonlinear multivariable method a Lagrange kinematics equation to determine from acquired position, velocity, acceleration and torque signals of the rotating shaft an unbalanced amplitude variable and an unbalanced angle variable of the rotating shaft, optionally both with and without a workpiece. The motor driving the shaft is energized with a combined S-shaped and sinusoidal velocity profile with a position profile component, a velocity profile component, and an acceleration profile component. The components are selected such that the motor speed during the accelerating and decelerating stages does not change abruptly.