Title:
NUMERICAL CONTROL DEVICE
Document Type and Number:
Japanese Patent JP2019145032
Kind Code:
A
Abstract:
To provide a numerical control device for correcting a machine position in feed shaft synchronous control.SOLUTION: A numerical control device 1 for correcting a machine position error based on a torque difference ΔT between a master axis and a slave axis, comprises: a move command part 101 for moving the master axis and the slave axis according to a move command; a torque difference acquisition part 102 for acquiring the torque difference ΔT after movement; a machine position error correction part 104 for correcting the machine position error by a correction amount based on a value obtained by excluding the torque difference Tm derived from the mechanical distortion according to the torque difference ΔT. The move command part 101 adds the correction amount fed back from the machine position error correction part 104 to the next move command.SELECTED DRAWING: Figure 11
Inventors:
OKURA TAKUMA
Application Number:
JP2018031201A
Publication Date:
August 29, 2019
Filing Date:
February 23, 2018
Export Citation:
Assignee:
FANUC LTD
International Classes:
G05B19/404; G05D3/12; H02P5/46
Domestic Patent References:
| JP2003271214A | 2003-09-26 | |||
| JP2017041075A | 2017-02-23 | |||
| JPH1063320A | 1998-03-06 | |||
| JP2003263228A | 2003-09-19 | |||
| JPH0465701A | 1992-03-02 | |||
| JPH01228752A | 1989-09-12 |
Foreign References:
| US20100231158A1 | 2010-09-16 |
Attorney, Agent or Firm:
Aiwa Patent Business Corporation