Gear cutting – milling – or planing – Milling – Thread or helix generating
Patent
1997-03-29
1999-02-23
Pitts, Andrea L.
Gear cutting, milling, or planing
Milling
Thread or helix generating
408222, 407 11, 407 47, 407115, 409 65, B23G 518
Patent
active
058736840
ABSTRACT:
A milling tool 8 includes a tool holder 10 for housing multiple thread cutting inserts 24 for precise milling of threads on a workpiece. The tool holder 10 is rotatable in an orbitable path spaced radially from a milling axis and is simultaneously rotatable about its own axis for repeatedly bringing each of the cutting inserts into engagement with the workpiece. Each cutting insert is precisely positioned within the tool holder by a stop surface 62 located at an axially rearward end of an insert cavity 28 in the tool holder. An axially elongate tool holder groove 32 is provided in communication with a side face of the generally rectilinear insert cavity. Each cutting insert defines a substantially rectangular plate, an end face for mating engagement with the stop surface 62 and an axially elongate insert groove 26 extending from a corresponding side face on the rectangular plate. A plurality of elongate pins 30 are each insertably engaged within each respective tool holder groove and insert groove, and are each secured by a plurality of screws 34 and 35 for applying a uniform force through the axis of the elongate pin for securing the respective cutting insert into a precise stabilized position within the tool holder.
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Machinery's Handbook, 25th Edition, pp. 1852-1854.
Wetmore Advertisement, Adjustment Reamers and Chucking Reamers.
Pitts Andrea L.
Tool Flo Manufacturing, Inc.
Williams Mark
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