Cutting by use of rotating axially moving tool – Tool-support
Patent
1996-12-17
1998-11-17
Howell, Daniel W.
Cutting by use of rotating axially moving tool
Tool-support
408186, 408239R, 279 16, 279 18, B23B 3102
Patent
active
058367284
ABSTRACT:
A floating reamer holder includes a tool holder coupled to a mounting shank which is receivable in the chuck of the turret of a machine tool. The coupling between the tool holder and shank includes both a fine adjustment which adjusts the float in order to prevent enlargement of the hole being reamed as well, as to reduce chatter and a coarse adjustment, which compensates for misalignment between the turret and axis of the reamer. The coarse adjustment is accomplished by attaching the mounting shank to an adaptor with a pair of threaded bolts, each of which pass through oversized holes through the base of the mounting shank and are threaded into threaded bores in the adaptor. Since the holes are oversized, the mounting shank is radially shiftable with respect to the adaptor to compensate for machine misalignment. Lubricating bores extend completely through the mounting shank and completely through the adaptor so that the float assembly can be lubricated without disassembling the floating reamer holder. In order to retain lubricant within the bore and reamer holder assembly, a grease nipple is threaded into the end of the bore in the mounting shank.
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Bhargave Adesh
Dana Corporation
Howell Daniel W.
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