US Patent: 6,394,709 - Tool Holder Having a Clamp Plate for Transmitting Clamping Forces from a Clamping Arm to a Cutting Insert


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US Patent: 6,394,709

Tool Holder Having a Clamp Plate for Transmitting Clamping Forces from a Clamping Arm to a Cutting Insert

Patentees:

Sture Sjöö (exact or similar names) - Gävle, Gävleborg County, Gästrikland Province, Sweden

Per Hansson (exact or similar names) - Gävle, Gävleborg County, Gästrikland Province, Sweden

USPTO Classifications:

407/105, 407/2, 407/3, 407/5, 407/6

Tool Categories:

metalworking machines : metalworking machine tool holders : insert tool holders

Assignees:

Sandvik AB - Sandviken, Gävleborg County, Gästrikland Province, Sweden

Manufacturer:

Not known to have been produced

Witnesses:

Unknown

Patent Dates:
Applied:	Apr. 26, 2000
Granted:	May 28, 2002

Patent Pictures:

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Description:

Foreign application priority data for Sweden: 26 Apr, 1999.

Abstract:

A cutting insert is clamped in a pocket of a holder by a top clamp assembly which includes a clamp arm screwed to the holder, and a clamp plate interposed between the insert and a front part of the clamp arm. The clamp plate is formed of a harder and more wear-resistant material than the clamp arm and transmits clamping forces from the clamp arm to the cutting insert. The hard clamp plate shields the clamp arm from being impacted by chips generated during a machining operation, thereby minimizing wearing of the clamp arm.