Apparatus for progressive blind broaching
AssigneeNational Broach & Machine Company
InventorsDavid A. Iwaniuk, Carol L. King
Life of this patent
Estimating the term…
Abstract
Apparatus for progressive blind broaching workpieces includes a machine having a table mounted for rotation about a central axis, and a ram reciprocable toward and away from the table. Work holders on the table mount the workpieces in circumferentially spaced relation around the central axis of rotation of the table. Broaching tools are mounted on a pallet which is releasably secured to the ram in proper position for broaching. A pallet load stand is positioned at one side of the machine and a pallet unload stand is positioned at the opposite side of the machine. The ram is operated by a single power cylinder.
Claims10
Apparatus for the progressive blind broaching of a plurality of workpieces comprising a base, an indexing table having a central axis and mounted on said base for rotation about said central axis, workpiece holders on said table for mounting said workpieces in circumferentially spaced relation about said central axis, means for indexing said table around said central axis in a step-by-step motion, a ram, a tool pallet, means mounting a plurality of broaching tools on said pallet in a circular arrangement about a center point in circumferentially spaced relation corresponding to the spacing of said workpiece holders, releasable means for removably securing said pallet to said ram in an operative position such that the center point of said broaching tools lies on the central axis of said table, said releasable means comprising locating mechanism for accurately locating said pallet, and clamping mechanism for clamping said pallet to the ram after it is accurately located by said locating mechanism, support means supporting said ram for movement toward and away from said table, and power mechanism for moving said ram along said support means toward and away from said table at intervals between the intermittent indexing of said table, whereby said tools perform a simultaneous metal removal cut on workpieces mounting on said work holders.
Apparatus for the progressive blind broaching of a plurality of workpieces comprising a base, and indexing table having a central axis and mounted on said base for rotation about said central axis, workpiece holders on said table for mounting said workpieces in circumferentially spaced relation about said central axis, means for indexing said table around said central axis in a step-by-step motion, a ram, a tool pallet, means mounting a plurality of broaching tools on said pallet in a circular arrangement about a center point in circumferentially spaced relation corresponding to the spacing of said workpiece holders, releasable means for removably securing said pallet to said ram in an operative position such that the center point of said broaching tools lies on the central axis of said table, support means supporting said ram for movement toward and away from said table, and power mechanism for moving said ram along said support means toward and away from said table at intervals between the intermittent indexing of said table, whereby said tools perform a simultaneous metal removal cut on workpieces mounted on said work holders, said ram having guide means for slidably receiving said pallet, and an access opening to said guide means through which said pallet may be slidably introduced into said guide means and slid to said operative position and slidably removed from said guide means.
Apparatus for the progressive blind broaching of a plurality of workpieces comprising a base, an indexing table having a central axis and mounted on said base for rotation about said central axis, workpiece holders on said table for mounting said workpieces in circumferentially spaced relation about said central axis, means for indexing said table around said central axis in a step-by-step motion, a ram, a tool pallet, means mounting a plurality of broaching tools on said pallet in a circular arrangement about a center point in circumferentially spaced relation corresponding to the spacing of said workpiece holders, releasable means for removably securing said pallet to said ram in an operative position such that the center point of said broaching tools lies on the central axis of said table, support means supporting said ram for movement toward and away from said table, and power mechanism for moving said ram along said support means toward and away from said table at intervals between the intermittent indexing of said table, whereby said tools perform a simultaneous metal removal cut on workpieces mounted on said work holders, said ram having guide means for slidably receiving said pallet, an entrance to said guide means through which said pallet may be slidably introduced into said guide means and slid to said operative position, and an exit from said guide means through said pallet may be slidably removed from said guide means.
Dependencies are inferred from the claim text.