Title:
数値制御装置と制御方法
Document Type and Number:
Japanese Patent JP7091979
Kind Code:
B2
Abstract:
To provide a numerical control device and a control method which can suppress positional deviation of a rotation position of a spindle during tool replacing operation, and can suppress oscillation of a servo motor.SOLUTION: A machine tool includes a spindle, a spindle head, a servo motor, a clamp mechanism part, a tool replacing device, and a CPU. The spindle detachably supports a tool. The spindle head rotatably supports the spindle. The servo motor is arranged on the spindle head, and drives the spindle. The clamp mechanism part clamps and unclamps the tool mounted on the spindle. The tool replacing device can execute tool replacing operation of the spindle. The CPU controls on/off of the servo motor. The CPU switches the servo motor from an on-state to an off-state from when a pair of holding parts hold a current tool and a following tool until when the clamp mechanism part completes switching from clamping to unclamping (S15).SELECTED DRAWING: Figure 9
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Inventors:
Junpei Kondo
Hisato Yabashi
Hisato Yabashi
Application Number:
JP2018185237A
Publication Date:
June 28, 2022
Filing Date:
September 28, 2018
Export Citation:
Assignee:
Brother Industries, Ltd.
International Classes:
B23Q5/04; B23Q3/155; G05B19/18
Domestic Patent References:
| JP59080172A | ||||
| JP2007160444A | ||||
| JP2000084712A | ||||
| JP63123646A | ||||
| JP3092235A | ||||
| JP2006095627A | ||||
| JP2006106849A | ||||
| JP2018106350A |
Foreign References:
| US4426763 |
Attorney, Agent or Firm:
Yamamoto Takashi
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