公开(公告)号：US4452552A

公开(公告)日：1984-06-05

申请号：US378863

申请日：1982-05-17

申请人： John A. Watkins

发明人： John A. Watkins

IPC分类号： B23Q16/00 ,  B23B39/00

CPC分类号： B23Q16/003 ,  Y10T408/18 ,  Y10T408/20 ,  Y10T408/23

摘要： A drilling machine of the woodpecker type employs a spindle carrying a drill. The spindle is mounted for rotation in a housing having an attached feed screw and those members form an assembly that can be axially moved while the spindle rotates to enable the drill to be fed toward and retracted away from the work. The feed screw is engaged by a nut whose position is controlled by a rapid traverse mechanism which can rapidly retract the spindle away from the work and can rapidly advance the spindle toward the work. The rapid traverse mechanism holds the nut fixed in position in the interval between rapid advance and rapid retraction. A peck feed machanism is connected to the feed screw and repititively feeds the spindle toward the work by causing the feed screw to progressively advance into the nut in the intervals when the nut is fixed in position. A hitch feed is coupled to the feed screw and acts to prevent the drill from bottoming in the hole on rapid advance. A trigger mechanism is arranged to be fired upon drilling of the hole to a predetermined depth. Upon firing, the trigger mechanism causes the feed screw to be disengaged from the hitch feed and from the peck feed mechanism whereby the feed screw is enabled to return to a starting position relative to the nut.

摘要翻译： 啄木鸟式钻机采用承载钻机的主轴。 主轴安装成在具有附接的进给螺杆的壳体中旋转，并且这些构件形成在主轴旋转时可以轴向移动的组件，以使得钻头能够朝向工件进给和从工件中缩回。 进给螺杆由螺母接合，螺母的位置由快速移动机构控制，该快速移动机构可以使主轴远离工件快速收回，并能快速地将主轴推向工件。 快速移动机构将螺母固定在快速前进和快速缩回之间的间隔中。 啄食机构连接到进给螺杆，并且当螺母固定就位时，通过使进给螺杆以间隔的顺序逐渐前进到螺母中，将主轴朝向工件重新进给。 连接进料联接到进给螺杆，并用于防止钻头在快速进给时在钻孔中触底。 触发机构布置成在将孔钻孔到预定深度时被点燃。 触发机构在触发时使得进给螺杆从连接进给和从进给机构脱离，由此进给螺杆能够相对于螺母返回到起始位置。

公开(公告)号：US4362444A

公开(公告)日：1982-12-07

申请号：US195927

申请日：1980-10-10

申请人： John A. Watkins

发明人： John A. Watkins

IPC分类号： B23B47/18 ,  B23Q16/00 ,  B23B39/10

CPC分类号： B23Q16/003 ,  Y10T408/17 ,  Y10T408/18 ,  Y10T408/23 ,  Y10T408/6793 ,  Y10T408/68

摘要： A drilling machine of the woodpecker type employs a spindle carrying a drill. The spindle is mounted for rotation in a housing having an attached feed screw and those members form an assembly that can be axially moved while the spindle rotates to enable the drill to be fed toward and retracted away from the work. The feed screw is engaged by a nut whose position is controlled by a rapid traverse mecahnism which can rapidly retract the spindle away from the work and can rapidly advance the spindle toward the work. The rapid traverse mechanism holds the nut fixed in position in the interval between rapid advance and rapid retraction. A peck feed mechanism is connected to the feed screw and repetitively feeds the spindle toward the work by causing the feed screw to progressively advance into the nut in the intervals when the nut is fixed in position. A hitch feed is coupled to the feed screw and acts to prevent the drill from bottoming in the hole on rapid advance. A trigger mechanism is arranged to be fired upon drilling of the hole to a predetermined depth. Upon firing, the trigger mechanism causes the feed screw to be disengaged from the hitch feed and from the peck feed mechanism whereby the feed screw is enabled to return to a starting position relative to the nut.

摘要翻译： 啄木鸟式钻机采用承载钻机的主轴。 主轴安装成在具有附接的进给螺杆的壳体中旋转，并且这些构件形成在主轴旋转时可以轴向移动的组件，以使得钻头能够朝向工件进给和从工件中缩回。 进给螺杆由螺母接合，螺母的位置由快速移动机构控制，可快速将主轴从工件上收回，并可快速将主轴推向工件。 快速移动机构将螺母固定在快速前进和快速缩回之间的间隔内。 啄进给机构连接到进给螺杆，并且当螺母固定就位时，通过使进给螺杆以间隔的顺序逐渐前进到螺母中，将主轴重复地供给工件。 连接进料联接到进给螺杆，并用于防止钻头在快速进给时在钻孔中触底。 触发机构布置成在将孔钻孔到预定深度时被点燃。 触发机构在触发时使得进给螺杆从连接进给和从进给机构脱离，由此进给螺杆能够相对于螺母返回到起始位置。