| 摘要 |
A device for monitoring the performance of an automated machine tool. Specifically, the device of the invention monitors the operation of a reciprocating appliance. The device of the invention measures the amount of force being exerted by the appliance during each operation. This information is analyzed by the device to determine the dimensional characteristics of each work piece. If the device calibrates that a particular work piece possesses an improper dimensional characteristic, e.g. thickness or hardness, then the device is designed to initiate a safety function, e.g. terminating the operation of the machine tool.
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