| 摘要 |
<p>@ An indexable machine tool turret comprising a body having a chamber, an opened end, a closed end and a central longitudinal axis; an axially displaceable rotateable turret top plate having a number of angularly spaced apertures for holding tools, said top plate being co-axial with said body axis; an axially displaceable and extending rotateable shaft connected to said top plate, said shaft co-axial with said top plate; two opposed annular face gears for seating said top plate to said body, said gears co-axial with and concentric with said top plate, one of said gears mounted in said top plate for engaging said other gear, said other gear mounted in said body; said shaft including a ring gear mounted concentrically thereto; means for displacing said shaft and thereby said top plate for causing said face gears to engage and disengage; drive means for engaging said ring gear for rotating said shaft when said face gears are disengaged; cushioned stopping means for stopping said shaft rotation; and, angular rotation detection means for determining said shaft rotation as a means for stopping said drive means and activating said stopping means when one of said paertures has reached a predetermined position is disclosed.</p> |
