公开(公告)号：US5052866A

公开(公告)日：1991-10-01

申请号：US571315

申请日：1990-08-22

申请人： Karl Bauch ,  Franz Ziegeltrum ,  Helmut Heel

发明人： Karl Bauch ,  Franz Ziegeltrum ,  Helmut Heel

IPC分类号： B23B31/117 ,  B23B31/26 ,  B23B31/30

CPC分类号： B23B31/261 ,  B23B31/302 ,  Y10T408/95 ,  Y10T409/309464

摘要： An actuating arrangement for a tool clamping device (1) has a clamping bar (3) which is axially displaceable in a clamping direction in a machine tool spindle (2) under the effect of a spring arrangement (11), and a wedge transmission assembly (9) which is operable between the spindle and the clamping bar, with freely movable balls which bear respectively against three cone surfaces of which the first is provided on a clamping sleeve (10) which is axially displaceable in the clamping direction on the clamping bar under the force of the spring arrangement (11), the second is provided on a clamping ring (12) connected to the clamping bar (3) and the third is provided on a support ring (13) which is arrangd stationarily with respect to the spindle. Provided on the support ring is a fourth cone surface (18) which is inclined relative to the axis of the clamping bar in opposite relationship to the third cone surface. A piston-cylinder unit (7, 8) is releasably connected to a release ring (20) provided in the region of the balls (14), by way of a locking means which acts in dependence on travel movement.

摘要翻译： 一种用于工具夹紧装置（1）的致动装置具有夹紧杆（3），其在弹簧装置（11）的作用下在机床主轴（2）中沿夹紧方向可轴向移动，并且楔形传动组件 （9），其可在主轴和夹紧杆之间操作，具有可分别抵靠三个锥形表面的可自由移动的滚珠，其中第一锥体表面设置在夹紧套筒（10）上，夹紧套筒（10）可沿夹紧方向轴向移动 在弹簧装置（11）的作用下，第二个设置在与夹紧杆（3）连接的夹紧环（12）上，第三个设置在支撑环（13）上，该支撑环相对于 主轴。 提供在支撑环上的是第四锥形表面（18），其相对于夹紧杆的轴线相对于第三锥形表面相反地倾斜。 活塞缸单元（7,8）通过根据行进运动而起作用的锁定装置可释放地连接到设置在滚珠（14）的区域中的释放环（20）。