Draw bar type flange mounted tool holder

Details Draw bar type flange mounted tool holder Draw bar type flange mounted tool holder

1984-07-26

1986-08-05

Peters, Jimmy C.

Gear cutting, milling, or planing

Milling

Cutter spindle or spindle support

B23B 3102, B23Q 312

Patent

active

046040102

ABSTRACT:
A tool holder for use with a mounting system including a spindle having a central frusto-conical bore and a draw bolt positioned centrally in the upper end of the spindle bore. The tool holder includes a central cylindrical main body portion having an annular groove in its upper end; a lower portion extending downwardly from the main body portion and including attachment means for receipt of a suitable tool; and a reduced diameter conical neck portion extending upwardly from the upper end of the main body portion, concentrically within the annular groove, sized to pilot upwardly into the conical bore of the spindle and having a threaded central bore at its upper end threadingly coacting with the lower end of the draw bolt to pull the holder into the spindle. The base diameter of the conical neck portion exceeds the base diameter of the conical spindle bore so that, as the pilot portion of the spindle seats in the annular groove in the holder, an annular space remains between the conical surface on the tool holder neck portion and the conical bore of the spindle.

REFERENCES:
patent: 2084801 (1937-06-01), Hall
patent: 2361324 (1944-10-01), Severson
patent: 2924152 (1960-02-01), Zettler
patent: 2994250 (1961-08-01), Walter et al.
patent: 3138997 (1964-06-01), Bruckner

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