中国机械工程
中國機械工程
중국궤계공정
CHINA MECHANICAl ENGINEERING
2012年
15期
1789-1792
,共4页
小口径非球面%斜轴磨削%磨损%误差补偿%半径补偿
小口徑非毬麵%斜軸磨削%磨損%誤差補償%半徑補償
소구경비구면%사축마삭%마손%오차보상%반경보상
small aspheric%inclined--axis grinding%wear%error compensation%radius compensa-tion
通过对比常用的圆盘砂轮的直交轴磨削方式,提出了小口径非球面斜轴磨削方法,探讨了斜轴磨削小口径非球面时砂轮的磨损测试方式与磨损量的变化规律,研究了砂轮半径误差对工件形状精度的影响。最后利用多轴超精密磨床对口径为6mm的非球面碳化钨模具进行磨削实验,砂轮半径磨损补偿磨削后,模具形状精度由PV 1929nm变为PV 359nm。
通過對比常用的圓盤砂輪的直交軸磨削方式,提齣瞭小口徑非毬麵斜軸磨削方法,探討瞭斜軸磨削小口徑非毬麵時砂輪的磨損測試方式與磨損量的變化規律,研究瞭砂輪半徑誤差對工件形狀精度的影響。最後利用多軸超精密磨床對口徑為6mm的非毬麵碳化鎢模具進行磨削實驗,砂輪半徑磨損補償磨削後,模具形狀精度由PV 1929nm變為PV 359nm。
통과대비상용적원반사륜적직교축마삭방식,제출료소구경비구면사축마삭방법,탐토료사축마삭소구경비구면시사륜적마손측시방식여마손량적변화규률,연구료사륜반경오차대공건형상정도적영향。최후이용다축초정밀마상대구경위6mm적비구면탄화오모구진행마삭실험,사륜반경마손보상마삭후,모구형상정도유PV 1929nm변위PV 359nm。
Contrasting to the common ultra--precision grlnalng moue, an mctm~u aAL~ ~1,~1u~,18 method was proposed. The changing regularity and testing mode of the wear amount of grinding wheel were analyzed for grinding micro aspherical surface. The influences of radius error of grinding wheel on the shape accuracy of the workpiece were studied. Through the wear error compensation grinding experiments of aspherical mold, the form accuracy of small aspherical mold with diameter in 6ram is improved from PV 1929nm to PV 359nm.
