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1. 发明专利

JPS59209707A Chuck device 失效
标题翻译：卡车装置
公开(公告)号：JPS59209707A
公开(公告)日：1984-11-28
申请号：JP8548683
申请日：1983-05-16
申请人： Kuroda Precision Ind Ltd , Sumitomo Heavy Ind Ltd , Toyoda Mach Works Ltd
发明人： NAKAMURA TETSUO , TAKAGI NOBUYUKI , ISOGAI SUMIAKI , KITADA AKIRA , SAJIKI MAKOTO
IPC分类号： B23B31/00 , B23B31/02 , B23B31/18 , B23B31/20
CPC分类号： B23B31/18
摘要： PURPOSE:To chuck a workpiece in the ID center accurately without entailing any deformation in the workpiece to be chucked, by making variations in the inner diameter size of a chucking hole for the workpiece allowable to some extent. CONSTITUTION:A collet 36 being fitted in a hydraulic mandrel arbor 16 is expanded open, while a state of just before an outer circumferential surface of the collet and an inner circumferential surface of a chucking hole come close to each other is detected. Next, feed pressure of a cylinder 15 for operation of a mandrel arbor 16 is changed over to low pressure. With this constitution, a workpiece can be accurately centered and chucked at an ID basis of the chucking hole without entailing any deformation and chucking scratches on the workpiece. Therefore, highly accurate machining can be done even if there are some variations in inner diameter size of the chucking hole.
摘要翻译：目的：在ID中心准确地夹持工件，而不会在要夹紧的工件中产生任何变形，通过使工件夹紧孔的内径尺寸发生变化，可以在一定程度上允许。构成：安装在水压心轴心轴16中的筒夹36被开放，同时检测到在夹头的外周面和夹紧孔的内周面之间的状态彼此靠近的状态。接下来，将用于操作心轴心轴16的气缸15的进给压力转换为低压。利用这种构造，能够以夹着孔的ID为基准将工件精确地对中并夹持，而不会对工件造成任何变形和夹紧划痕。因此，即使夹紧孔的内径尺寸有一些变化，也可以进行高精度的加工。

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