Toolhead for cutting workpieces and method of manufacturing same
AssigneeSamson Aktiengesellschaft
InventorDieter Eysel
Life of this patent
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Abstract
A tool head for the precision cutting of a surface of a rotating workpiece has a cutting tool which is movable in opposition to the force of a restoring spring from an initial position into an operating position with respect to the workpiece via an actuating drive. The actuating drive is formed by a translatorily movable driving element and a transfer element which converts the driving movement into an adjusting movement. The driving element used for adjusting the cutting tool from the initial position to a machining position is formed by an expansion bar actuated by magnetostrictive principles.
Claims20
A toolhead for precision cutting of a surface of a workpiece during a rotation of one of the toolhead and the workpiece about a rotational axis, said toolhead including a cutting tool which is movable against a restoring spring force from an initial position to an adjusted position relative to the workpiece via an actuating drive which comprises a translatory movable driving element and a transfer element which converts a driving movement of the driving element into an adjusting movement of the cutting tool from the initial position into the adjusted position, the driving element comprising an axially positively magnetostrictive expansion bar which is made in one piece and which is associated with an adjustable force transmission element via which the initial position of the cutting tool and a preloading of the restoring spring force are continuously adjustable.
A toolhead, comprising:
- a base portion;
- a driven element coupled to the base portion, said driven element being movable relative to the base portion and being biased by a restoring spring force toward said base portion;
- a magnetostrictive expansion bar fixedly coupled to said base portion, said expansion bar being selectively engageable with said driven element to move said driven element away from said base portion;
- and
- an adjustable force transmission element adjustably engageable with the magnetostrictive expansion bar, an initial position of the driven element and a preloading of the restoring spring force being continuously adjustable via said adjustable force transmission element.
A method of manufacturing a toolhead, comprising the steps of:
- forming a base portion;
- coupling a driven element to the base portion such that said driven element is movable relative to the base portion and is biased by a restoring spring force toward said base portion;
- fixedly coupling a magnetostrictive expansion bar to said base portion such that said expansion bar is selectively engageable with said driven element to move said driven element away from said base portion;
- and
- adjustably engaging an adjustable force transmission element with the magnetostrictive expansion bar such that an initial position of the driven element and a preloading of the restoring spring force is continuously adjustable via said adjustable force transmission element.
Dependencies are inferred from the claim text.