Joint for modular toolholder device of a tool machine for the wo

Details Joint for modular toolholder device of a tool machine for the wo Joint for modular toolholder device of a tool machine for the wo

1989-11-30

1991-11-12

Briggs, William

Gear cutting, milling, or planing

Milling

With cutter holder

408239A, B23C 526

Patent

active

050643223

ABSTRACT:
Tool holder connection arrangement for modular tools holder devices of a tool machine for connecting a first hollow element, provided with an internal threading and having a cylindrical axial seat, to a second hollow element provided with a shank insertable in the cylindrical axial seat of the first element. The connection arrangement includes a shaft having threading engageable with the internal threading of the first hollow element, the shaft defines a seat for receiving a clamping wrench. A tongue arrangement is provided for torsionally blocking the second element relative to the first element. A crown of balls arrangement is provided for axially blocking the second element with respect to the shaft. The shaft includes a circumferential groove and the shank includes a circumferential groove for receiving the crown of balls arrangement. The crown of balls arrangement releases or blocks the second element relative to the first element upon rotation of the shaft in a direction with respect to the first element. A dowel arrangement is provided for torsional blocking of the second element relative to the shaft. The dowel arrangement includes a radial bore through the second element and a head element engaging a groove formed in the shaft, the head element being maintained in engagement with the groove by an elastic pin.

REFERENCES:
patent: 2917975 (1959-12-01), Webster
patent: 2977859 (1961-04-01), Glaser
patent: 4617846 (1986-10-01), Horsch
patent: 4643623 (1987-02-01), Kondo et al.
patent: 4834597 (1989-05-01), Andersson et al.
patent: 4886402 (1989-12-01), Pfalzgraf

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