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
Video e-commerce
Apparatus, system, and method for securely authorizing changes to a transaction restriction
Glyoxalation of vinylamide polymer
SMB process for the purification of ethanol and butanediol with integrated regeneration
Method for producing an electrophysiological map of the heart
Temperature measurement near an ice ball using a proton resonance frequency method and recalculation of susceptibility artifacts
Method for manufacturing fluoropolymers
  Randomly Featured Patents
Driving circuit for a control terminal of a bipolar transistor in an emitter-switching configuration having a resonant load
Phosphonic diester derivatives
Method to prevent vision loss
Interface device for sensing position and orientation and outputting force feedback
Distributed processing of sorted search results in an electronic commerce system and method
Method of producing packaging material in the form of a continuous laminate web
Biaxial capacitance strain transducer
Tire condition monitoring apparatus
Separator assembly
Process for the epoxidation of olefins