Back to results
US 5,259,100 AGranted
Milling tool for turret punch press
AssigneeAmada Engineering & Service Co., Inc.
InventorYutaka Takahashi
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeAmada Engineering & Service Co., Inc.
InventorYutaka Takahashi
Estimating the term…
An air powered milling tool supported in the upper turret of a turret punch press is cycled simultaneously with a hydraulically- or mechanically-powered punch press ram in a multiple-stage cycle to perform a milling operation on a sheet material workpiece retained between the upper and lower turrets of the punch press. The air-powered tool, which includes a punch head in coaxial alignment with a guide sleeve, drives an end mill which is contained within and is coaxially extendible through the guide sleeve toward the workpiece to perform a machining operation thereon. Hold-down bearings disposed at the end of the guide sleeve engage with the workpiece at a local region thereof. A spring-biased lifter disposed in the upper turret is engagable with the guide sleeve. In operation, the punch press striker impacts the punch head of the milling tool, urging the milling tool and air motor in the direction of the sheet material. As the tool descends, the milling tool extends from the guide sleeve and impacts the sheet material. Simultaneously, a compressed air charge or steady state air flow is flowed through the striker and into the milling tool body and is delivered to the air motor which drives the milling tool in the desired machining operation. Subsequent to the completed machining operation, the striker is reciprocated to its idle position, thereby enabling the lifter and the hold-down spring to return the punch head and guide sleeve, respectively, to their initial idle positions. Overall system operation is computer controlled.
A tool for use with a turret punch press having a rotatable turret provided with a plurality of tool holders, said tool adapted to be mounted in one said tool holders and including a fluid-powered motor for driving a cutting tool mounted thereto, a striker adapted to be urged against said tool, and means for flowing a fluid supply through said striker and to said motor when the turret is rotated to a predetermined position.
A tool for use with a turret punch press having a rotatable turret provided with a plurality of tool holders, said tool adapted to be mounted in one of said tool holders and including a fluid-powered motor for driving a cutting tool mounted thereto, and means for coupling a fluid supply to said motor when the turret is rotated to a predetermined position, said tool further including a guide sleeve mounted in said one tool holder and having a through bore, a punch head having a bore substantially coaxial with the bore in said guide sleeve and being supported for axial movement relative to said guide sleeve, said motor and cutting tool being mounted in the bore of said punch head for slidable axial movement in the bore of said guide sleeve and means for resiliently biasing said guide sleeve and said punch head away from each other whereby said guide sleeve and said punch head are urged toward one another against the force of said resilient biasing means, said cutting tool projecting out of the bore at one end of said guide sleeve for engaging a workpiece.
A turret punch press for machining a sheet metal workpiece, comprising:
A turret punch press for machining a sheet metal workpiece, comprising:
A turret metal punch press for machining a sheet metal workpiece, comprising:
A tool for use with a turret punch press having a rotatable turret provided with a plurality of tool holders, said tool adapted to be mounted in one of said tool holders and including a fluid-powered motor for driving a cutting tool mounted thereto, and means for coupling a fluid supply to said motor when the turret is rotated to a predetermined position, said tool further including a punch body mounted in said one tool holder and having a through bore, a punch head mounted to said punch body having a bore substantially coaxial with the bore in said punch body, a punch sleeve having a bore substantially coaxial with the through bore of the punch body and being supported for axial movement relative to said punch body, said motor and cutting tool being mounted in the bore of said punch head for slidable axial movement in the bore of said punch sleeve and means for resiliently biasing said punch sleeve and said punch body away from each other;
A turret punch press for machining a sheet metal workpiece, comprising:
A tool for use with a turret punch press having a turret rotatable to a plurality of positions, said turret having a plurality of tool holders, said tool adapted to be mounted in one of said tool holders and including a fluid-powered motor for driving a cutting tool mounted thereto, and means provided at one of said positions for selectively connecting and disconnecting a fluid supply to said motor to impart a rotary motion to said tool.
A turret punch press for machining a sheet metal workpiece, comprising:
A tool for use with a turret punch press having a rotatable turret provided with a plurality of tool holders, said tool adapted to be mounted in one of said tool holders and including a fluid-powered motor for driving a cutting tool mounted thereto, means for flowing a fluid supply to said motor to impart a rotary motion to said tool, a guide sleeve mounted in one said tool holder for supporting the tool for axial movement, and means for resiliently biasing said tool against said guide sleeve.
Dependencies are inferred from the claim text.