Resources Contact Us Home
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
Prompt gap varying optical filter, analytical instrument, optical device, and characteristic measurement method
Transfer device and image forming apparatus including regulation member
Lubricant composition
Reactor core of liquid metal cooled reactor
Benzimidazole inhibition of biofilm formation
Method of providing tailor-made software for hospital departments
Automobile body
  Randomly Featured Patents
Image processing apparatus, image processing method and program for segmentation based on a degree of dispersion of pixels with a same characteristic quality
Integrated display and input system
Articulating vise adapter (AVA)
Processor interface chip for dual-microprocessor processor system
Pressure relief arrangement for a pump
Method for forming a thin layer of superconducting material on a substrate and article produced thereby
Grinder with built-in grinding agent dispenser
Computer-based system for interrogating a user and generating a result
Portable electric fan having a universally adjustable mounting
Method and system for NAND-flash identification without reading device ID table