B - Operations – Transporting – 27 – C
Patent
B - Operations, Transporting
27
C
77/10
B27C 1/14 (2006.01) B23B 31/26 (2006.01) B23B 31/28 (2006.01)
Patent
CA 1116893
ABSTRACT This invention relates to power drawbolts which are rotatably mounted within a machine tool spindle and are rotated by an electric motor to screw into a threaded open- ing in a toolholder to secure the toolholder within a socket on the front end of the spindle. First and second spur gears are formed on the rear end of a spindle and drawbolt, respectively. The gears are po- sitioned side by side and are equal in diameter, but have a differing number of teeth. A planetary gear cage surrounds the spur gears and has pinion gears which mesh with both of the spur gears. The planetary gear cage is attached to the armature of an electric motor which, when energized, rotates the gear cage and thus causes the drawbolt to rotate at a reduced speed. The speed reduction depends on the differ- ence in the number of teeth in the two spur gears. Pre- ferably the motor armature is axially shiftable to move a locking ring on the planetary gear cage into and out of engagement with the spur gear on the spindle.
340300
Kearney & Trecker Corporation
Sherman
LandOfFree
Power drawbolt with planetary drive does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Power drawbolt with planetary drive, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Power drawbolt with planetary drive will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-330679