Endmill adapter with integral collet

Details Endmill adapter with integral collet Endmill adapter with integral collet

B - Operations, Transporting

23

B

B23B 31/20 (2006.01)

Patent

CA 2134558

The present invention is a tool holder for receiving an end- mill or similar tool. The tool holder includes a shank portion (14) adapted to fit into the spindle of a machine, and a closed end col- let (16) integrally formed with the shank portion. The collet in- cludes an axial bore (30) for receiving the tool and a plurality of resilient collet segments (34) for gripping the tool. The collet seg- ments are separated by a plurality of axially extending slots (32) which terminate inwardly from the forward end of a collet. A con- tinuous tie ring (36) extends around the forward end of a collet and joins the plurality of collet segments together. The continuous tie ring provides for increased radial stiffness at the forward end of the collet which improves accuracy and repeatability of tool lo- cation. A lock nut (40) threads onto the collet to collapse the collet segments radially inwardly to grip the tool.

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