Toolholder
申请公布号:US8234958(B2)
申请号:US20080169368
申请日期:2008.07.08
申请公布日期:2012.08.07
发明人:HYATT GREGORY A.;MASSA TED R.;ANDRAS LINN R.;STOHR JAMES J.
分类号:B23B1/00;B23Q15/00;B23B7/00;B23B21/00;B23B25/06;B23B29/04
主分类号:B23B1/00
摘要:A toolholder with a controllable critical angle, such as a lead, trailing, rake or clearance angles, includes a tool spindle for retaining the toolholder in a tool rest of a machine tool. The machine tool includes at least one linear axis, for example, three mutually perpendicular axes, a rotary axis and a rotation axis. The rotary axis and/or rotation axis is controllable to move to a specified position in synchronization with a movement of one of the linear axes. An adaptor supports a cutting tool that is retained in the adaptor by a clamp. The cutting tool defines a critical angle, such as a lead angle, a trailing angle, a rake angle and a flank clearance angle, wherein the critical angle is corrected as a vector of movement of at least one of the linear axis is changed. In addition, the cutting tool can be positioned on opposite side of a centerline of rotation of the workpiece to effectively double the life of the cutting tool. A method of controlling a toolholder is also disclosed.
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