| 摘要 |
<p>The invention provides a punch device which can realize rotation and lifting of the punching drill through a motor, wherein even the spindle is short, the necessary lifting height can be realized; a drill reduction sleeve with a hollow drill can be liftingly arranged on the base table in the body; the drill reduction sleeve can be rotatably arranged on the substrate plate; a drive motor with a drill reduction sleeve is arranged on the substrate plate; with the rotation of the drill reduction sleeve, the drill reduction sleeve and the substrate plate with the drive motor lift, and at the same time the hollow drill rotates and lifts; a nut with female thread is arranged on the base table; the periphery of the drill reduction sleeve is provided with the male thread so as to combine the male and female thread to lift the drill reduction drill; under the axial force generated by rotation of the drill reduction sleeve, the substrate plate lifts; a drive belt is arranged between the drive pulley of the drive motor and the drive pulley of the drill reduction sleeve; and the drill reduction sleeve is rotated by the leave-joint structure.</p> |
