筒夹夹头、夹头装置及加工制品之制造方法;COLLET CHUCK, CHUCK APPARATUS, AND METHOD FOR MANUFACTURING WORKED PRODUCTS

摘要

藉由防止把持位置在轴线方向产生偏移，而提高加工零件之形状的精度，且降低不良率。;一种筒夹夹头10系具备有：筒状之主筒夹11；及筒状之副筒夹12，其在该主筒夹11之内周侧，相对于主筒夹11以可移动之方式配置于轴线方向，主筒夹11系具有：复数个开槽11a，其延伸于轴线方向；被加压面11b，其被设置在外周，且为用于将主筒夹11之内径加以扩大缩小之被加压的面，即构成为朝向轴线方向之任一侧而呈锥形或倒锥形；及主侧倾斜面11c，其被设置在内周，且构成为以呈倾斜之方式朝向轴线方向之前端侧的倒锥形，副筒夹12系具有：复数个开槽12a，其延伸于轴线方向；把持面12b，其被设置在内周，且用于把持被把持材料；及副侧倾斜面12c，其被设在外周，且构成为与上述主侧倾斜面产生接合之倒锥形。;A collet chuck 10 comprises (1) a main collet 11 having a cylindrical shape, and (2) a sub collet 12 which has a cylindrical shape and which is placed on the inside of the main collet 11 and which is movable in the axis direction with respect to the main collet 11, wherein The main collet 11 includes (1) a plurality of slots 11a extending the axis direction, (2) a pressed surface 11b which is formed on the outside of the main collet 11 and which is a surface in order to open and close the inside diameter of the main collet 11 and which has a tapered shape and an inverse tapered shape in one side or the opposite side of the axis direction, (3) a main tilted surface 11c which is formed on the inside of the main collet 11 and which has an inverse tapered shape directing diagonally to top side of the axis direction, and The sub collet 12 contains (1) a plurality of slots 12a extending the axis direction, (2) a holding surface 12b which is formed on the inside of the sub collet 12 and which is a surface in order to grasp clasped members, (3) a sub tilted surface 12c which is formed on the outside of the sub collet 12 and which has an inverse tapered shape contacting with the main tilted surface.