Turning – Lathe – Tool rest
Patent
1989-05-30
1990-09-11
Terrell, William E.
Turning
Lathe
Tool rest
407 6, 407 11, 407 76, B23B 2722
Patent
active
049552643
ABSTRACT:
The present invention is a tool assembly comprising a tool block and a tool holder capable of delivering chip-breaking fluid to the tool holder without a fixed attachment to the tool holder. The tool block is formed with a tool shank cavity having a tool support surface. The tool holder includes a shank insertable into the tool shank cavity of the tool block. A fluid delivery passage is formed in the tool block which terminate in an outlet opening. A primary fluid passage is formed in the tool holder and terminates in a discharge orifice positioned to direct a fluid jet at the chip being removed from the workpiece. A fluid path provides a path for the flow of chip-breaking fluid from the outlet of the delivery passage to the inlet of the primary fluid passage throughout the entire range of relative movement between the tool block and holder. In the preferred embodiment, the fluid path is a shallow recess formed in either the tool shank or tool block which forms an enclosed fluid cavity when the tool holder is mounted to the tool block.
REFERENCES:
patent: 3364800 (1968-01-01), Benjamin et al.
patent: 3889520 (1975-06-01), Stoferle et al.
patent: 4598617 (1986-07-01), Kubo et al.
patent: 4621547 (1986-11-01), Yankoff
patent: 4636118 (1987-01-01), Hunt
patent: 4695208 (1987-09-01), Yankoff
Kennametal Inc.
Terrell William E.
Trempus Thomas R.
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