| This dissertation realizes one computer numerical control system for two and half axises upright numerical control milling machine using computer software, hardware and DSP technology. This system is one PC-DSP principal and subordinate frame. PC means one general personal computer. DSP implies one MCT8000F4 motion controller (core chip: TMS320C31) made by Shenzhen Motion Technology Co. Ltd. The plant controlled is one simulant for milling machine consisted of two sets of step motor & driver (open system) driving one worktable by ball bearing. One pencil is the simulative milling cutter. Parameters setting, milling cutter radius compensation, graphics drawing of the work-piece machined, realizing local control, etc. are the tasks of PC, while line & arc interpolation, motion segment acceleration & deceleration control, position protection at a high precision rate and so on are the duty of DSP motion controller. In the end, the system can draw the cutter center track of the work piece's program track accurately. This dissertation consists of 3 sections as following.1. System hardware structure: introduces hardware research & development.2. System correlative theory research and software design: includes application study on MCT8000F4 & DSP, cutter radius compensation, line & arc interpolation, motion segment acceleration & deceleration control, etc.3. System integration: integrates the cutter radius compensation, control interface, DSP main program module & controlled plant to realize the whole system linkage well.The DSP, Matlab and Java technology used by this dissertation are all very popular in the application study field. It can be used for multi-axis numerical control machine tool only if perfects and expands this dissertation's content. The manufactures used the technology mentioned above will have a good market perspective. This is of factual significance and study value under developed country's technique for multi-axis number control machine tool being limited to our country.
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