Resources Contact Us Home
Grinding machine

Image Number 2 for United States Patent #4589230.

A grinding machine including a grinding wheel spindle motor for rotating a grinding wheel, a workpiece spindle motor for rotating a workpiece such as a gear to be ground in mesh with the grinding wheel, and a traverse motor for moving a table supporting the workpiece spindle motor. A power detector and a comparator are connected to a driver circuit for the grinding wheel spindle motor. When a load on the grinding wheel in mesh with the workpiece is increased, such a load increase is detected by the power detector and applied to a comparator. If the load signal is in excess of a reference level, then the application of a drive signal to the traverse motor is interrupted or a speed at which the workpiece is traversed relatively to the grinding wheel is reduced.

  Recently Added Patents
Card reader device
Biomarker for Barrett's Oesophagus
Image sensor and method for fabricating the same
Contact lens material
Modular utility rack
Organic light emitting diode light source device
Electric discharge machining hole drilling
  Randomly Featured Patents
Thermophotovoltaic in-situ mirror cell
Method of making and using ferrous metal particle briquettes
Microorganism immobilization in a .beta.-chitin carrier
Method and apparatus for organizing, storing and evaluating access control lists
Apparatus and method for treating articles in solution with effervescent tablets
Polysiloxanes and their preparation
Oscillation damper for hand-held power tool
Packaged photocurable composition
System and method for positioning an object through use of a rotating laser metrology system