Work monitoring system for machine tool

Abstract

Provided is a configuration of a machine tool operation monitoring system that specifies a machine tool in which an operation abnormality has occurred without requiring a special strict discriminationmark. A machine tool operation monitoring system detects abnormal operation of a machine tool (1), and detects abnormal operation of the machine tool (1) if the abnormal operation exceeds the range of normal operation of a drive motor of each machine tool (1) and / or if the movement conditions of constituent parts and materials of the machine tool (1) exceed the normal range. The problem is solvedby determining a machine tool (1) in which an operation abnormality has occurred on the basis of either a monitoring of an image projected onto a camera (31) by reflected light from a reflective display panel (22) provided to each machine tool (1) or b monitoring of a difference in the projection direction of light emitted from a lamp (21) provided to each machine tool (1) onto a light sensor (32).

Description

technical field [0001] The present invention is directed to an operation monitoring system of a machine tool for monitoring whether or not a plurality of machine tools arranged in a workplace are operating normally. Background technique [0002] When a predetermined object is automatically processed based on automatic control by a plurality of processing devices arranged in a workplace, a monitoring system for judging whether the operation status of each processing device is normal or not is essential. [0003] The necessity of the above-mentioned determination is particularly obvious when the processing device is a machine tool. In the prior art, when the operation of the machine is detected, a detection signal notifying an abnormality sent by an individual processing device in operation is wirelessly transmitted. Or wired to the monitoring device. [0004] However, in the case of transmitting such a signal, a mechanism for strictly distinguishing from which processing dev...

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Problems solved by technology

[0013] However, in Patent Document 2, there is no specific description of how the system strictly distinguishes abnormal operations among the plurality of components of the operating machinery.

[0014] According to the applicant's search, there has not been found a basis for a mechanism that can monitor the abnormality of each machine tool installed in the workplace without strictly distinguishing the signals for notifying abnormality among multiple machine tools. Known technology such as identifying the abnormal machine tool on the

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