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
Display screen with graphical user interface
Device for identifying types of document files
Memory management configuration
Techniques for accessing a parallel database system via external programs using vertical and/or horizontal partitioning
Modified continuous phase modulation communications system and related methods
Progressively discovering and integrating services
Data output apparatus and data output method
  Randomly Featured Patents
Catalytically active ceramic monoliths for the reduction of leaded gasoline fueled engine pollutants and the production thereof
Distance information obtaining apparatus and distance information obtaining method
Method of treating a catalyst
Method and apparatus for poling a planar polarizable body
Mated main and collateral stent and method for treatment of arterial disease
Metal analysis for acid-soluble elements
Method of reducing transmission power in a wireless communication system
User interface system
Independently-adjustable circuit board carrier
Combined monitor and light box assembly