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
Method and system for cooling of integrated circuits
Radio communication system, base station device and mobile station device utilizing an intermittent reception
Image-capturing device and projection automatic calibration method of projection device
Bootstrap gate driver
Mesa-shaped piezoelectric resonator element
Method for transferring inventory between virtual universes
Pyridylphenyl compounds for inflammation and immune-related uses
  Randomly Featured Patents
Methods for optimizing communications between an RFID reader and a tag population using non-sequential masking
Apparatus for damping fluctuations of torque
Method and apparatus for thermal fusing of optical fibers
Laminate sheet
Flaring tool
Vehicle wheel
Cable connector with symmetrical housing
System and method for policy-based registration of client devices
Common mode noise filter
Shockwave source for acoustic shockwaves