| 摘要 |
PURPOSE: A system and a method for checking hardness of a crank shaft are provided to allow for a real time monitoring of measurement data, while permitting the feedback operation for the fault to be rapidly carried out. CONSTITUTION: A system comprises an orthogonal robot(2) equipped with an ultrasonic hardness sensor(4) for sensing the hardness of each pin journal of a crank shaft(6) and disposed in a crank shaft production line; a measurement computer(10) for storing measurement value for each part obtained from the signal transmitted from the ultrasonic hardness sensor and filtered through a signal controller(8); and an analysis computer(12) for constructing a database from the data transmitted from the measurement computer and performing a statistical analysis on the data.
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