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In order to meet the machine tool could intelligent machining for the new worm wheel gear, a parametric zero programming CNC system is developed based on the modern embedded control technology. The ARM + DSP + FPGA as CNC module hardware platform, and using VS2005 VC + + module development CNC worm wheel grinder processing automatic programming system on the WinCE operating system. Before gear grinding only need to input certain such as the workpiece parameters, tool parameters and process parameters est. through man-machine interface, then the automatic programming software system will check and calculate these parameters, and choose the machining parameters based on process database, finally automatically generate the format NC program for the CNC worm wheel gear grinding machining. Automatic programming is a technology of translating the easy understanding part program to CNC processing code which could be identified by machine tool and the majority of programming is completed by computer. In this paper, with the analysis the automatic programming of processing gears in CNC worm gear grinding machine on the gear's specialization, the mathematical model of programming of gear processing on worm gear grinding machine has been built and based on the model, a NC code automatic generation technology of CNC worm gear grinding machine has been developed which can be described in detail as a technology of inputting special parameters of workpiece, cutting tool and processing, checking and calculating parameters, choosing optimal processing parameters from process database and generating automatically NC codes of the gear processing according to the code structure of the CNC system on warm gear grinding machine.

Research and Realization of the Intelligent Automatic Programming System of the Worm Gear Grinding Machine