公开(公告)号：US06766675B2

公开(公告)日：2004-07-27

申请号：US10311294

申请日：2002-12-17

申请人： Yukinori Suzuki ,  Kiyofumi Sakuragawa

发明人： Yukinori Suzuki ,  Kiyofumi Sakuragawa

IPC分类号： B21D302

CPC分类号： B21D41/04 ,  B21D22/14 ,  B21D22/18

摘要： In order to achieve the lightweight, low-cost and high-efficiency design of a spindle apparatus, speed-change device 50 is provided such that slots 31 are formed in one of a spindle 10 and a cam shaft 12 while spiral torque cam grooves are formed in another, and extend around the axis thereof. A torque cam pin 34 is engaged in each slot and its associated torque cam groove, and the position of the spindle 10 relative to the cam shaft 12 in a circumferential direction can be changed by moving the torque cam pins 34 in the axial direction by drive device 43. Drawing tools 8 are moved in opening and closing directions by changing the position of the spindle 10 relative to the cam shaft 12 in the circumferential direction.

摘要翻译： 为了实现主轴装置的轻量化，低成本和高效率的设计，提供了变速装置50，使得在主轴10和凸轮轴12之中形成有槽31，而螺旋扭矩凸轮槽 形成在另一个中，并且围绕其轴线延伸。 扭矩凸轮销34接合在每个槽及其相关联的扭矩凸轮槽中，并且主轴10相对于凸轮轴12在圆周方向上的位置可以通过使转矩凸轮销34沿轴向移动通过驱动来改变 通过相对于凸轮轴12在圆周方向上改变主轴10的位置，拉动工具8在打开和关闭方向上移动。