Resources Contact Us Home
Method of positioning and rotating workpiece and arrangement implementing same

Image Number 11 for United States Patent #4369603.

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.

  Recently Added Patents
Hybrid asynchronous transmission process
Lighting device with device for regulating the illumination according to the luminance of the illumination field and corresponding use
Vectorization of program code
Sound producing apparatus for vehicle
Apparatus and method for storing event information for an HVAC system
Power-on reset circuit
  Randomly Featured Patents
Vaginal cleaning apparatus
Woodburning heater with protected viewing window
Electroluminescent organic semiconductor element and a method for repair of an electroluminescent organic semiconductor element
Acrylate copolymeric fibers
Device and method for controlling solid-state memory system
Three-coin register toy bank
Magnifying lamp head
Method and device for producing thin sections of a sample by means of an image recognition system
Valve actuating mechanism for an internal combustion engine, and cylinder head incorporating same
Fish line control apparatus with magnetic release