Invention Grant
US09448545B2 Servo control device for performing correction based on amount of stretch or contraction of ball screw
有权
伺服控制装置，用于根据滚珠丝杠的拉伸或收缩量执行校正
- Patent Title: Servo control device for performing correction based on amount of stretch or contraction of ball screw
- Patent Title (中): 伺服控制装置，用于根据滚珠丝杠的拉伸或收缩量执行校正
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Application No.: US14065925Application Date: 2013-10-29
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Publication No.: US09448545B2Publication Date: 2016-09-20
- Inventor: Yasusuke Iwashita , Kenichi Takayama , Satoshi Ikai
- Applicant: FANUC CORPORATION
- Applicant Address: JP Yamanashi
- Assignee: FANUC CORPORATION
- Current Assignee: FANUC CORPORATION
- Current Assignee Address: JP Yamanashi
- Agency: Hauptman Ham, LLP
- Priority: JP2012-239048 20121030
- Main IPC: G05B19/40
- IPC: G05B19/40 ; G05B13/02 ; G05B19/404
Abstract:
A servo control device in the present invention corrects a position command to a feed axis, so as to compensate for an amount of stretch or contraction of a ball screw during operation, by taking into account an influence of tension applied to the ball screw. The amount of stretch or contraction of the ball screw is calculated, based on the tension acting on the ball screw on the side farther from the servo motor, a distance between two fixed units supporting the ball screw at its opposite ends, a distance from the fixed unit situated closer to the servo motor to a moving body, and a torque command to the servo motor. An amount of position correction of the feed axis is calculated, based on the calculated amount of stretch or contraction of the ball screw.
Public/Granted literature
- US20140121818A1 SERVO CONTROL DEVICE FOR PERFORMING CORRECTION BASED ON AMOUNT OF STRETCH OR CONTRACTION OF BALL SCREW Public/Granted day:2014-05-01
Information query
IPC分类:
