Machine element or mechanism – Rotary member or shaft indexing – e.g. – tool or work turret – Preselected indexed position
Patent
1992-05-26
1994-03-29
Luong, Vinh T.
Machine element or mechanism
Rotary member or shaft indexing, e.g., tool or work turret
Preselected indexed position
74126, 74813C, 74826, 74813L, F16H 2702, B23B 2924
Patent
active
052974545
ABSTRACT:
A device for rotationally indexing an indexing table by utilizing a synchronized tap function of a machine tool main spindle. The rotation and the axial feeding displacement of the main spindle are in a specific synchronized relation. When the main spindle is fed forward, it engages an input shaft of the indexing device and thrusts it to retract against a spring force. Upon arriving at a retracted position of the input shaft, the main spindle starts rotation in one direction. Because of a one-way clutch between the input shaft and the indexing table, the rotation of the input shaft imparted by the main spindle is not transmitted to the indexing table. After a predetermined angular rotation and an axial feed, the main spindle is rotated in the reverse direction to be withdrawn axially. At this time the one-way clutch operates to transmit the reverse rotation to the indexing table. The indexing device is of compact construction and ensures accurate indexing.
REFERENCES:
patent: 3422941 (1969-01-01), Fredell
patent: 3828616 (1974-08-01), De Lille et al.
patent: 3860108 (1975-01-01), Farfaglia
patent: 4018093 (1977-04-01), Nilsson
patent: 4558611 (1985-12-01), Boffelli
patent: 4611630 (1986-09-01), Muchow et al.
patent: 4852428 (1989-08-01), Haga et al.
Howa Machinery Ltd.
Luong Vinh T.
LandOfFree
Indexing device of machine tool does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Indexing device of machine tool, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Indexing device of machine tool will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-784949