FOERFARANDE Foer UPPDELNING AV VERKTYGSMASKINS ARBETSPERIOD

摘要

System for automatic condition monitoring of machine-tools in operation. The workingcycle is divided into phases, where different reference values may be valid for the parameters that are monitored, e.g. the current consumption of motors. When a new phase is to be initiated this is stated by the operator. Furthermore, there is a possibility to get impulses for phase changing from generators positioned on the machine-tool or the control system. Unambiguousness regarding where in the working-cycle a change of reference values (phase change) occurs is obtained in that the monitoring systems add pulses from pulse generators coupled to the feeding axes of the machine-tool. The monitoring is synchronized with the working-cycle in that the starting pulse of the detail programme is fed to the monitoring system. By deviations from the valid reference values, obtained from recording, ALARM or STOP signals are obtained in dependence of the type of deviation.