Other

Spetsialnoe Knostruktorskoe Bjuro Po Proektirovaniju Shlifovalnogo

Arkady A Zykov

Iosif D Gebel

Viktor I Parshikov

Askold I Nefedov

Viktor Fedorovich Khrolenko

Vladimir M Lvov

Marina Y Starkina

Mendel S Klibanov

By Maria Ryss, Legal Representative

Alexandr S Ryss, Deceased

A method for positioning and rotating a workpiece shaped like a body of rotation and having a plane face, comprising the following steps: positioning the workpiece on an axial and a radial supports; transmitting the torque from a rotary driving member to the workpiece due to the forces of friction developed therebetween; and feeding ultrasonic mechanical vibrations to at least one of the supports, said vibrations being fed to any one of the supports in the direction substantially parallel to or at an angle not exceeding 10 degrees with the line of contact between the workpiece and said support. An arrangement implementing this method comprises separate axial and radial supports, the radial support being constituted by two parts spaced apart through a certain angle and having the profile, in the working portion, congruent to the cylindrical profile of the workpiece surface. The arrangement is further provided with a frictional rotary driving member contacting with the workpiece to be machined, and with an electromechanical magnetostriction converter operating within the ultrasonic range and having a waveguide rigidly connected to both converter and support, mechanical vibrations being fed thereto.

Method of positioning and rotating workpiece and arrangement

The device has a base mounting a support which constantly contacts the surface of an object being measured, the object having a nominally circular cross-section. The support is a plurality of essentially self-adjusting balance beams arranged in steps or in a staggered order. The swing axles of the balance beams of a first step are secured to the base, while the swing axles of the balance beams of a subsequent step are secured to the ends of the balance beams of a preceding step. The balance beams of a last-in-succession step contact the profile of the cross-section of the object being measured. The central angles at which the balance beams are mounted are chosen on the basis of a condition of maximal stabilization of the position of the center of the profile of the cross-section of the object being measured relative to the base in the direction of the disposition of a sensing element of a displacement transducer secured to the base.

Device for measuring the deviation of object with nominally circular

The device has a base mounting a support which constantly contacts a normal section profile of a part, being measured, the part having the shape of a body of revolution. The support is essentially a system of self-adjusting balance beams arranged in steps. The axles of oscillation of the beams of a first step are secured to the base, while the axles of oscillation in subsequent steps are secured to the respective ends of beams of a preceding step. The beams of a last step contact the profile being measured. The central angles under which the balance beams are mounted are chosen on the basis of the condition of maximal stabilization of the position of the centre of the profile of the part relative to the base in the direction of disposition of a sensing element of a linear-movement dial indicator secured to the base.

Device for measuring deviation of the normal section profile of a part

Growing community of inventors

Saint-Petersburg, Russia

Arkady A Zykov