Invention Grant
- Patent Title: Correction method at time of feed axis reversal
- Patent Title (中): 进给轴反转时的校正方法
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Application No.: US13823797Application Date: 2011-10-26
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Publication No.: US09588509B2Publication Date: 2017-03-07
- Inventor: Akira Kawana , Norio Mori , Mitsunari Oda
- Applicant: Akira Kawana , Norio Mori , Mitsunari Oda
- Applicant Address: JP Tokyo
- Assignee: MAKINO MILLING MACHINE CO., LTD.
- Current Assignee: MAKINO MILLING MACHINE CO., LTD.
- Current Assignee Address: JP Tokyo
- Agency: Paul & Paul
- Priority: JP2010-241212 20101027
- International Application: PCT/JP2011/074722 WO 20111026
- International Announcement: WO2012/057231 WO 20120503
- Main IPC: G05B19/18
- IPC: G05B19/18 ; G05B19/404

Abstract:
A stick motion correction method which corrects stick motion which occurs at time of reversal of a feed axis of a numerical control machine tool stores a position command to be commanded to a servo motor from an NC program of a numerical control machine tool for each predetermined control period from a current position command to a later position command, calculates a reversal correction command based on the stored position commands, calculates an advancement time for advancing timing of addition of the reversal correction command to a speed or torque command of the motor from reversal timing of the servo motor, based on information obtained from operation of the motor and adds the reversal correction command to the speed or torque command of the servo motor to precisely correct stick motion at a timing advanced from the reversal timing of the servo motor by an exact time.
Public/Granted literature
- US20130173046A1 Correction Method at Time of Feed Axis Reversal Public/Granted day:2013-07-04
Information query
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