Research On Auto-Programming Technology For Numerical Control Rolling Gear Machine Based On Embedded System

NC (Numerical Control) program is one of the most efficient taches in the CAD/CAM/CAPP system at present, it plays an important role in the accomplishment of automatization in designing and machining, improvement of machining precision and quality and shortening of product research period. Now, because the way that NC code programmed by hand can not satisfy the intense demand of actual production ,in addition, with the development of computer technology, people are prefer using computer programming to manual ones as a results of the powerful computing and processing ability, and then diversified auto-programming methods emerged. Auto-programming has several advantages compared with manual-programming as follow:①reduce the error rate of NC code and improve the work efficiency of machine②avoid the complex mathematics calculation in manually and reduce the difficulty of technique③make standard rules in process technic and unify the frame of NC code.This paper combined the actual demand of the numerical control rolling gear machine, put forward a newly auto-programming method aim at the machining of gear.This paper has deeply studied the structure of embedded system and NC programming technology, and devised a new embedded auto-programming system based on NC rolling gear machine, which usedμClinux operation system as the software core and S3C44B0 micro-control chip as the hardware kernel. At the same time, the design theory and the construction of hardware have been introduced in detail, while the circuit diagram provided. Furthermore the Bootloader which is the leading code of system, the port ofμClinux operation system and the module of application program have been analysed emphatically.At last,we put forward several questions which need to be discussed and improved.This system not only broke through the traditional way and achieved the auto-programming of NC code, but also can download or upload the NC program wtih the machine tools though RS232 serial interface. In addition, it also can transmit information through Ethernet interface by a inside simple WEB server. It is a system which integrated auto-programming,storage and transmission of NC program as a whole.