| 摘要 |
PURPOSE:To simply prepare tool abnormality monitor data by a method wherein the tool abnormality monitor data are manually inputted as monitor information at the time of test cutting. CONSTITUTION:In a tool abnormality monitoring device, an input device 61 for abnormality reference and tool characteristics is connected to a gate circuit 63, and an output from an output circuit 62 for current value at the test cutting is also connected to the gate circuit 63. In the gate circuit 63, the abnormality reference and the tool characteristic inputs can be variably introduced even where the current value input is supplied at the time of the test cutting, and the two inputs are supplied to a processor 64. The processor 64 prepares the tool abnormality monitor data based on the two input signals and feeds the data to a monitor data memory 65. Then, the data is inputted to a tool abnormality discriminating circuit 66. On the other hand, in addition, an output from an NC information output circuit 66 is inputted to the circuit 67. From the two inputs to the circuit 67, whether an abnormality exists or not in the tool is discriminated. |
