Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Control system for synchronized operation of machine tool motors










Image Number 3 for United States Patent #4353018.

An improved control system for facilitating tapping work in a machining center of the type which performs a variety of machining operations automatically. Control is effected by establishing and maintaining a certain relationship between the operation of a spindle motor which rotates a tap, and the operation of a Z-axis feed motor which transports a table longitudinally of the tap, the table mounting a workpiece. Specifically, the spindle motor and Z-axis feed motor are driven in relation to one another at all times in such a manner that the equation N.sub.s =f.sub.m /P will be satisfied, where N.sub.s (rpm) is the rotational speed of the spindle motor, f.sub.m is the feed speed of the table along the Z-axis, and P is the thread pitch of the tap. Apparatus for controlling the spindle motor includes a control circuit which is adapted to stop the spindle at a prescribed angle of rotation.








 
 
  Recently Added Patents
Image forming apparatus and warming up method thereof
Shoe bag
Drive coil, measurement probe comprising the drive coil and methods utilizing the measurement probe
Arcuate motion control in electrostatic actuators
Selective high frequency spinal cord modulation for inhibiting pain with reduced side effects, and associated systems and methods
Delay lines, amplifier systems, transconductance compensating systems and methods of compensating
Dynamic load profiling in a power network
  Randomly Featured Patents
Concrete weldment
Shaped bodies and the production thereof
Skin adhesive hydrogel, its preparation and uses
Dust resistant load port apparatus and mini-environment system
Return spring for a circuit interrupter operating mechanism
Composite magnetic head device
Method and apparatus for inverse 3:2 pulldown detection using motion estimation information
Reference generator for multilevel nonlinear resistivity memory storage elements
Image pickup apparatus
Process for recovering ethylene-vinyl acetate copolymers from an aqueous dispersion