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
Collating device, collating method, and program
Integrated analyses of breast and colorectal cancers
Specimen preparation device, and control method in specimen preparation device
Thermoplastic fluoropolymer composition
Lock
Semiconductor device with an amorphous semi-insulating layer, temperature sensor, and method of manufacturing a semiconductor device
Avalanche photodiodes having accurate and reproductible amplification layer
  Randomly Featured Patents
Organopolysiloxane polyethers and their use as hydrolysis-resistant wetting agents in aqueous systems
Intermediates used in the process for preparing 1(4-pentenoyl)-3,3-dimethylcyclohexane
Communication system supporting wireless communication of packet data and method and arrangement relating thereto
Depth control device for an underwater cable
Novel thione dopamine beta hydroxylase inhibitors
Hexacoordinated ruthenium or osmium metal carbene metathesis catalysts
Hydroxypropyl starch hydrolyzate product
Integrated circuit inductors using driven shields
Electromagnetic flapper valve
Biocompatible polymeric delivery systems having functional groups attached to the surface thereof