Machine tool and machine tool self-diagnosis method
AssigneeDmg Mori Co., Ltd.
InventorMasahiro Yamane
Life of this patent
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Abstract
A machine tool including a fixed cover and a movable cover for covering at least part of a machining region includes a cover control device that includes a driving circuit for driving the movable cover, an abnormality detection device that detects an abnormality while the movable cover is driven, a self-diagnosis device that performs evaluation on whether the abnormality detection device is normal, and an output device that outputs a result of the evaluation by the self-diagnosis device. The self-diagnosis device is configured to perform the evaluation on whether the abnormality detection device is normal based on an operating state of the abnormality detection device at a time when a pseudo abnormality is generated on the movable cover by driving the movable cover via the driving circuit.
Claims17
A machine tool including a fixed cover and a movable cover for covering at least part of a machining region, the machine tool comprising:
- a cover control device that includes a driving circuit for driving the movable cover;
- an abnormality detection device that detects an abnormality while the movable cover is driven;
- a self-diagnosis device that performs evaluation on whether the abnormality detection device is normal;
- and
- an output device that outputs a result of the evaluation by the self-diagnosis device, wherein
- the self-diagnosis device performs the evaluation on whether the abnormality detection device is normal based on an operating state of the abnormality detection device at a time when a pseudo abnormality that imitates an actual abnormality is generated on the movable cover by driving the movable cover via the driving circuit.
A self-diagnosis method for a machine tool including a cover control device that drives a movable cover via a driving circuit and an abnormality detection device that detects an abnormality while the movable cover is driven, the self-diagnosis method comprising:
- a pseudo abnormality generation step of generating a pseudo abnormality that imitates an actual abnormality on the movable cover by driving the movable cover via the driving circuit;
- a self-diagnosis step of, when the pseudo abnormality is generated by the pseudo abnormality generation step, performing evaluation on whether the abnormality detection device is normal based on whether the abnormality is detected by the abnormality detection device;
- and
- an output step of outputting a result of the evaluation by the self-diagnosis step.
Dependencies are inferred from the claim text.