對加減速控制方法在CNC 數控系統中的運用進行了總體介紹。對開發的四次位移曲線
加減速方法數控系統的總體結構進行了介紹，包括硬件和軟件部分。然后對加減速在本系統中的具體應用方法做了說明，并通過一個加工實例，對常見的幾種加減速方法進行了驗證和比較。
關鍵詞：加減速控制方法 四次位移曲線加減速方法 CNC 數控系統

Based on the displacement curve of four CNC Numerical Control System 1 Teachers Campus,Guangzhou Technology Teachers College, Li Li-bin 2 Guangdong Industry and trade Professional Technology College， Zhao Wen-long 3 guangdong university of technology，Gao-jian Abstract: To adding the control method reducing the speed, in CNC, the population having wielded go along in numerical control system introduces that. The population structure adding the method numerical control system reducing the speed has carried out the part introducing , including hardware and the software on development four
time of displacement curves. Have been used for and then explanation to the method
applying concretely in adding the system reducing the speed in , have been in progress
and by adding the method reducing the speed one processes an example , face to face
common several kind verifying and comparing.
Keywords: Add the control method reducing the speed Four time of displacement
curves add the method reducing the speed CNC numerical control system