Study on On-line Intelligent Measurement and Control System of Shaft Parts' Precision Straightening Machine

In order to effectively integrate the special hardware and software, data collection, data calculation and analysis, data control principle, and to realize the on-line intelligently exact measurement and straightening control of shaft parts. Research the systematic soft-hardware composition, communication and programme, shaft's measurement principle, and confirm the quantity of straightening. The system adapts to the shafts that the quantity of bend distortion is less than or equal to 0.25 mm, diameter: 20 mm to 80 mm, length: 300 mm to 1200 mm. PC is used as the upper machine, PLC and controller as the principal and subordinate structure of the lower machine. Communication mode uses RS232 series port and Software adapts the mixed programme of VB and VC to realize the measurement and control the interface, collect and control the data in real time. Through the straightening quantity calculated by the technological theory model and the straightening technological condition, adopting the ANN forecasts for the straightening quantity, and then get the precise straightening quantity.