Quick change tool retainer

Details Quick change tool retainer Quick change tool retainer

1986-05-30

1987-08-25

Weidenfeld, Gil

Gear cutting, milling, or planing

Milling

Cutter spindle or spindle support

279 1B, 279 75, 408136, 408239R, 408712, B23B 3122, B23B 4514

Patent

active

046889752

ABSTRACT:
The power tool has a magnetic base with superposed permanent magnet assemblies. The upper assembly can be moved relative to the lower assembly to subtract from or reinforce the magnetic field. When the sensing probe is pushed into the base the electric motor can be switched on to rotate a spindle on which a rotary cutting tool is axially mounted. The tool feed is controlled by a handle which can be mounted on either side of the tool housing. A coolant reservoir on the base has a hose connected to a pump which is connected to a manifold supplying coolant to the center of the cutting tool. The cutting tool is biased upwardly and pinches off the coolant when the tool is raised from the work. The tubular tool shank is retained on the drive spindle by balls carried by a cage and moved into engagement with a groove in the tool shank by a cam surface on a release collar spring biased to move the balls to engage the tool.

REFERENCES:
patent: 2441414 (1948-05-01), Hohwart et al.
patent: 2813280 (1957-11-01), Huffman
patent: 3373658 (1968-03-01), Larsen
patent: 3658351 (1972-04-01), Bensamin et al.
patent: 3765787 (1973-10-01), Hart et al.
patent: 4582456 (1986-04-01), Imai

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