Physik Instŕumente (pi) Gmbh & Co. Kg

Physik Instrumente Gmbh & Co. Kg

Dominik Bocskai

Harry Marth

Reinhard Hübner

The invention relates to an adjustment device, comprising: a stator; a driven element; a guide apparatus for bearing the driven element in a guided manner with respect to the stator in a drive direction when the adjustment device is operational; a slider; a bearing apparatus which bears the slider so as to be movable relative to the stator in the drive direction; a drive device which drives the slider; a coupling apparatus; and a clamping apparatus. When released, the clamping apparatus allows a range of movement between the connection device and either the slider or the driven element in order to set up an assembly state of the adjustment device and, when clamped, said clamping apparatus rigidly couples together the connection section and either the slider or the driven element in the drive direction and thereby allows a relative rotational movement between the driven element and the about a rotational axis extending in the drive direction.

Adjustment device for linearly moving a driven element

The invention relates to a rotation actuating device, comprising a base, a rotor and at least two groups of drive units, each group comprising at least two drive units, wherein the drive units are arranged peripherally on the base and between the base and the rotor, wherein each drive unit comprises two deflectable actuators, which are arranged in a V-shape with respect to each other, and a friction element, which is connected to both actuators, and wherein the rotor and the friction elements are pressed in a direction toward each other by means of a spring device arranged between the drive units, such that, when the actuators are not deflected, all the friction elements are in contact with the rotor and jointly span a contact plane, wherein a continuous movement of the rotor is realized by means of phase-offset control of the actuators of different groups of drive units. The invention further relates to a method for operating the rotation actuating device.

Device and method for effecting rotational actuation

The present disclosure relates to an electromechanical linear drive having a housing, an electromechanical drive unit, a transmission element which is coupled to the electro-mechanical drive unit, and an element to be driven which is in frictional contact with the transmission element, where the transmission element is mounted on at least two bearing points with respect to the housing. Improved accessibility to the element to be driven and a longer adjustment path of the element to be driven can be achieved by placing the element to be driven in frictional contact with the transmission element at a point of engagement outside of all bearing points.

Electromechanical linear drive with transmission element

A piezoelectric stepper drive includes a piezoelectric drive apparatus with at least two drive sections, each acted upon by at least two piezoelectric actuators, and a driven member which is advanced by at least one of the drive sections when control voltages are applied to the actuators. The drive apparatus is configured approximately in the shape of a triangle, at the tip of which the drive sections are arranged. At least one of the drive sections is biased against the driven member, in the absence of control voltages applied to the actuators, such that the drive section blocks advance of the driven member, where each of the drive sections is mounted individually resilient relative to a base of the triangle.

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Iffezheim, Germany

Dominik Bocskai