Title:
工作機械の加工誤差の補正方法
Document Type and Number:
Japanese Patent JP6842146
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a technical means capable of more appropriately correcting a machining error based on thermal deformation of a machine tool, in particular a lathe, without lowering the productivity.SOLUTION: A method for correcting a machining error of a machine tool, comprises: bringing the outer circumference 5 of a work chuck 4 attached to a main spindle into contact with a contact detection sensor 3a or a detection rod 3b attached at the tool attachment position 7 of a tool rest 14, 24; and by detecting a change in the relative positional relationship between the main spindle and the tool attachment position of the tool rest from the coordinates of the tool rest 14, 24 at the time of detecting the contact, determining a correction value with respect to the position of the tool rest 14, 24. The contact of the detection rod 3b with the chuck outer circumference 5 can be detected by detecting the rising of a position deviation, which is a difference signal between the position command given to a tool rest feed motor and a feedback signal by using the detection rod processed with high accuracy instead of using the contact detection sensor 3a.SELECTED DRAWING: Figure 6
Inventors:
Kenichi Nakanishi
Application Number:
JP2016160735A
Publication Date:
March 17, 2021
Filing Date:
August 18, 2016
Export Citation:
Assignee:
Nakamura Tome Precision Industry Co., Ltd.
International Classes:
B23Q15/18; B23Q17/00; G05B19/404
Domestic Patent References:
| JP4102760U | ||||
| JP6055415A | ||||
| JP5069276A | ||||
| JP2002120130A | ||||
| JP2006062021A | ||||
| JP2009172716A | ||||
| JP2006102922A | ||||
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| JP49022510B1 |
Attorney, Agent or Firm:
Takao Nishi