Gear cutting – milling – or planing – Milling – Cutter spindle or spindle support
Patent
1978-02-13
1979-11-27
Weidenfeld, Gil
Gear cutting, milling, or planing
Milling
Cutter spindle or spindle support
408239A, B23C 526
Patent
active
041758986
ABSTRACT:
An apparatus for power assisted locking and unlocking of cutting, grinding, or like tools received within the tool holder of a machine such as a vertical milling machine or the like. The described machine includes a spindle and a quill, and the tool is received within a collet held in a taper at the end of the spindle. A drawbar extends through the spindle and holds the collet into the taper locking the tool in the collet opening. The locking and unlocking apparatus includes a drawbar driving motor, a drawbar driving member associated with the motor, and means associated with the drawbar for providing a drive connection between the drawbar and the motor when the drawbar is in a pedetermined position. Means are provided to position the drawbar so that a part thereof engages the motor drive at the same time that a switch is closed so as to energize the motor and cause it to rotate the drawbar in one direction or the other. The motor drive is preferably of the impact type so as to insure application of controlled torque to the drawbar for both locking and unlocking.
REFERENCES:
patent: 2883889 (1959-03-01), Diener
patent: 3027812 (1962-03-01), Courtois
patent: 3038386 (1962-06-01), Parske et al.
patent: 3374711 (1968-03-01), Saunders
patent: 3643969 (1972-02-01), Finley et al.
patent: 3898911 (1975-08-01), DeCaussin
LandOfFree
Tool changing apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Tool changing apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tool changing apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-801070