Tool bit and holder assembly

Details Tool bit and holder assembly Tool bit and holder assembly

1985-05-30

1986-07-15

Vlachos, Leonidas

Turning

Severing or cut-off

Interrelated means for tool infeed and circumrotation

407 71, 407 94, 407108, B23B 2904, B23B 2924

Patent

active

045999236

ABSTRACT:
A tool bit and holder assembly is disclosed wherein a tool holder having a dove-tailed tang for connection with a mounting tool post is provided with a longitudinal groove in one face thereof; the groove having parallel, longitudinally extending and angularly inclined planar side walls intersecting a planar bottom wall of the groove. A single insert tool bit of trapezoidal cross section, having longitudinally convergent, angularly inclined, planar lateral flanks fits into the tool holder groove with one flank thereof engaging one side wall of the groove. A single wedge member, having angularly inclined and longitudinally divergent planar sides engages the other side wall of the groove and the other lateral flank of the tool bit so that application of force on the wedge to move the same toward the bottom wall of the tool holder groove exerts holding force on the tool bit along three right angularly related axes to securely hold the tool bit in fixed operative position. A modified form of the single bit assembly is also disclosed for holding at least two tool bits in a holder with similar triaxially related wedge applied holding forces.

REFERENCES:
patent: 2150286 (1939-03-01), Miller
patent: 2183796 (1939-12-01), Saffady
patent: 2449823 (1948-09-01), Sheridan
patent: 2690609 (1954-10-01), Greenleaf
patent: 4174916 (1979-11-01), Kezran
patent: 4422356 (1983-12-01), Pertle

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