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    • 1. 发明专利
    • Machining method of aspheric surface and its device
    • 平面表面及其装置的加工方法
    • JPS5919646A
    • 1984-02-01
    • JP12953082
    • 1982-07-27
    • Toshiba Corp
    • SUMIYA MITSUOUEDA KATSUNOBUKAMIYA KIYOSHI
    • B23B5/00B23P25/00B24B13/00
    • B24B13/0043B23P25/00
    • PURPOSE:To obtain aspheric surfaces with various radiuses of curvature at a low cost by elastically deforming the work surface precisely into a predetermined shape beforehand, machining it precisely into a predetermined shape under this condition, then removing the elastic deforming force. CONSTITUTION:A cutter fitting tool 4 is fitted to the tip of a main shaft and a diamond cutter 5 is fixed to it. A fitting mount 13 is fixed to a feed table 11 and a screw for fitting a work 16 is provided on the outside face of the fitting section 15 of the mount 13. An adjusting screw 20 as a pressurizing body is screwed through the fitting section 15, and the step portion 21 of the work 16 is fixed to the mount 13 by the tightening of a screw 17 of a fixing body 22. When the screw 20 is screwed to press a rear surface 16a, a work surface 16b is elastically deformed, and this surface is cut. After the machining is completed, the fixing body 22 is loosened to remove the work, which is then deformed in its original curve shape.
    • 目的:通过将工作表面精确地弹性变形为预定的形状,以低成本获得具有各种曲率半径的非球面,在该条件下精确地将其精加工成预定的形状,然后去除弹性变形力。 构成:将切割装配工具4装配到主轴的末端,金刚石切割器5固定在其上。 安装座13固定在进给台11上,在安装件13的嵌合部15的外侧设有用于安装工件16的螺钉。作为加压体的调节螺钉20通过安装部15旋入 通过拧紧固定体22的螺钉17将工件16的台阶部21固定在支座13上。当螺钉20拧紧以按压后表面16a时,工作表面16b弹性变形, 并且该表面被切割。 在加工完成之后,固定体22被松开以除去工件,然后以原来的曲线形状变形。