Cutting by use of rotating axially moving tool – With means to apply transient – fluent medium to work or product – Including tool with duct
Patent
1990-01-08
1991-08-06
Schwartz, Larry I.
Cutting by use of rotating axially moving tool
With means to apply transient, fluent medium to work or product
Including tool with duct
408 56, 408241B, 408 72B, 175214, 175220, 279 20, B23B 5106
Patent
active
050372505
ABSTRACT:
A rotary tool holder of the type including a stationary shell adapted to be reciprocally positioned within a bushing plate and a shaft mounted rotatably within the stationary shell. An annular space is provided between the shaft and the shell and the shell includes an enlarged diameter collar portion proximate one end of the shell and a reduced diameter pilot portion extending from the collar portion to the other end of the shell. The pilot portion is slidably received in the bushing plate and the collar portion receives a pressurized coolant fitting. Needle bearings are provided in the annular space between the shell and the shaft proximate the pilot portion and a pair of annular seals are provided in the annular space between the shell and the shaft proximate the collar portion. The annular seals are positioned on opposite sides of a radial passage formed through the collar portion and through the shaft for communication with a central axial bore in the shaft. Pressurized fluid is delivered through the collar portion and through the radial port in the shaft to the central axial bore in the shaft from when it is delivered to the cutting tool carried by the shaft for delivery through a central bore in the tool to the cutting face where it acts to cool the cutting face and break up and remove chips from the cutting face.
REFERENCES:
patent: 3024030 (1962-03-01), Koch
patent: 3791660 (1974-02-01), Bostley
patent: 4557643 (1985-12-01), Cioci
patent: 4652189 (1987-03-01), Mizoguchi
patent: 4770570 (1988-09-01), Tsui et al.
Mechanical Engineering Design, p. 487, 1983.
Isaf Louis T.
Schultz Robert
Schwartz Larry I.
Westinghouse Electric Corp.
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