Electromechanical motor, especially a piezoelectric microstepper drive

A piezoelectric microstepper drive, comprising:

• a housing, the housing comprising a bearing support extending into a cavity formed by the housing and a housing bearing hole extending longitudinally at least partially through the bearing support;
• a lid configured to mate with the housing, the lid having a lid bearing hole corresponding to the housing bearing hole;
• a shaft supported rotatably in the housing bearing hole and the lid bearing hole, the shaft comprising two bearing surfaces and a rolling area therebetween;
• two electromechanical drive elements aligned substantially perpendicular to one another;
• a drive ring comprising a peg extending perpendicular to a surface of the drive ring and a throughhole configured to mate with the rolling area of the shaft, wherein the rolling area of the shaft is configured to rotate in the throughhole;
• a stiff substantially rectangular frame surrounding and coupled to the drive ring;
• an outer U-shaped frame enclosing the rectangular frame comprising two respective U-legs joined by a basic element, wherein free ends of the U-legs not joined opposite the basic element are displaceable in a direction parallel to the basic element;
• a first rod element arranged approximately in parallel with the basic element configured to couple a first one of the two electromechanical drive elements to one of the free ends of the U-legs;
• a second rod element arranged approximately in perpendicular with the basic element configured to couple a second one of the two electromechanical drive elements to the peg of the drive ring;
• and
• a fixing element configured to be fixed in the housing proximate to the basic element, the fixing element comprising two receptacles each configured for rigidly securing a respective one of the two electromechanical drive elements.