Device for overload protection and braking of a machine part driven by motor
AssigneeMicron Technology, Inc.
InventorGerhard Hinterlechner
Life of this patent
Estimating the term…
Abstract
A device for overload protection and for braking a machine part driven by a motor (2), in particular, a tool driven by a cam gear in a stamping and/or bending machine, comprises a module (3), an overload clutch (4) disengaging after exceeding a torque threshold, and a freewheel (6) which, during the braking of the drive shaft (1) blocks in the direction of drive, each being arranged on the drive shaft (1) behind one another in the drive line extending from the motor (2) to the machine part.
Claims14
An overload protection and braking device for braking of a portion of a machine tool to have a workpiece located therein, the device having a drive shaft in a drive line driven by a motor on which an overload clutch is disposed, the drive line extending from the motor to the workpiece, said device comprising:
- braking apparatus connected to the drive shaft on a first side of the overload clutch;
- and
- freewheeling apparatus located on a second side of the overload clutch, the freewheeling apparatus connected to the overload clutch to prevent rotation of the drive shaft in less than a portion of a rotation thereof during the braking of said portion of the machine tool for said overload protection thereof.
A device for a portion of a machine tool to have a workpiece located therein, the device having a drive shaft driven by a motor on which an overload clutch is disposed, said device comprising:
- braking apparatus connected to the drive shaft on a first side of the overload clutch;
- and
- freewheeling apparatus located on a second side of the overload clutch, the freewheeling apparatus connected to the overload clutch to prevent rotation of the drive shaft in less than a portion of a rotation thereof during the braking of said portion of the machine tool for overload protection thereof, the freewheeling apparatus including:
- a first ring connected to the drive shaft;
- a second ring torsionally connected to a portion of the braking apparatus.
Dependencies are inferred from the claim text.