公开(公告)号：US5489169A

公开(公告)日：1996-02-06

申请号：US373015

申请日：1995-01-17

申请人： Daniel G. Scott ,  Richard M. Brosig

发明人： Daniel G. Scott ,  Richard M. Brosig

IPC分类号： B23D37/10 ,  B23D37/00 ,  B23Q3/06

CPC分类号： B23D37/10 ,  Y10T409/400175 ,  Y10T409/40595

摘要： A broaching machine for cutting keyways in a bore of a piece part. There is a stationary bed plate on which is slidably mounted a moveable vise which slides along the bed plate. The jaws of the moveable vise clamp the piece part which is to be machined. A broach holder lowers the broach through an upper fixed support which has upper broach guide means disposed therein. The broach then passes through the piece part and through a lower broach guide means positioned in the bed plate. A broach pulling unit receives the bottom of the broach and reciprocates the broach in an up and down vertical cutting operation. The broach is maintained in position and alignment by means of the upper and lower broach guide means which are disposed above and below the piece part. The upper and lower broach guide means are removable and replaceable after a predetermined amount of wear has occurred. The piece part is moved into the cutting teeth of the broach a predetermined amount to remove the material from the piece part in the keyway cutting operation. A single broach is thus capable of cutting various depth keyways by controlling the amount of movement of the vise along the bed plate.

摘要翻译： 一种用于在零件的孔中切割键槽的拉削机。 有一个固定的床板，其上可滑动地安装有可移动的虎钳，其沿着床板滑动。 可移动的虎钳的夹爪夹住待加工的零件。 拉刀支架通过上部固定支架降低拉刀，该固定支架具有布置在其中的上拉刀引导装置。 然后，拉刀穿过该零件并通过位于床板中的下拉刀引导装置。 拉刀单元接收拉刀的底部，并且在上下垂直切割操作中使拉刀往复运动。 通过布置在片部件上方和下方的上下拉刀引导装置将拉刀保持在适当位置和对准位置。 在发生预定量的磨损之后，上部和下部拉刀引导装置是可拆卸和可更换的。 将刀片部分移动到预定量的拉刀的切割齿中，以在键槽切割操作中从零件部件移除材料。 因此，通过控制虎钳沿着床板的移动量，单个拉刀能够切割各种深度键槽。