Gear cutting – milling – or planing – Milling – Process
Patent
1986-09-23
1988-08-09
Bilinsky, Z. R.
Gear cutting, milling, or planing
Milling
Process
279 4, 279 50, 279 51, 408239R, 409232, 409234, B23B 3104, B23C 526
Patent
active
047624477
ABSTRACT:
The collet includes a compressible basket having a central opening to receive a tool shank and two exterior surfaces tapering in opposite directions. One tapered exterior surface engages a matching tapered interior surface of a hollow rotatable shaft that receives it. The other tapered exterior surface engages a matching tapered interior surface of a wedge received in the shaft and movable axially relative to it. The angles of the tapers are such that they are self holding. The collet is closed by moving the wedge which compresses the basket sequentially at the two tapered surfaces, locking the tapers. The force on the wedge is released after this, leaving the tapers locked without external force as the tool is gripped in two locations during operation of it. The collet is actuated by a pneumatic power cylinder with two pistons having portions that engage an extension of the wedge for moving it, after which these portions are spaced from the wedge extension so that they do not interfere with the operation of the tool. The position of the power cylinder is adjustable to assure clearance at the wedge extension.
REFERENCES:
patent: 2228685 (1941-01-01), Benjamin
patent: 2410439 (1946-11-01), Garnier
patent: 2462155 (1949-02-01), Benjamin et al.
patent: 2467569 (1949-04-01), Walters
patent: 2515183 (1950-07-01), Benjamin et al.
patent: 3210088 (1965-10-01), Williamson et al.
patent: 3727928 (1973-04-01), Benjamin
Bilinsky Z. R.
Optima Industries, Inc.
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