Remote controlled tool arm adjustment
AssigneeWerth Engineering, Inc.
InventorCarl H. Werth, Jr.
Life of this patent
Estimating the term…
Abstract
A tool positioning device for radially adjusting, by remote control, the position of a cutting tool very precisely relative to the axis of rotation of a rotating face plate includes an air pressure operated bi-directional pawl and ratchet mechanism employed to operate a differential screw to shift a tool carrying member radially of the face plate.
Claims8
In a tool arm assembly having a rotary spindle including a face plate, and tool mounting means supported on said face plate for adjustably shifting a tool in predetermined step-by-step increments radially of said spindle while said face plate is rotating;
- the improvement wherein said tool mounting means comprises a bar member supported by said face plate and extending radially of said spindle, said bar member having a pair of end portions fixedly secured to said face plate and a central portion resiliently coupled to and between said end portions for movement relative to said end portions radially of said spindle, means for fixedly mounting a tool on said central portion of said bar member, screw means operable when rotated to shift said central portion relative to said spindle, bi-directional pawl and ratchet means operable when actuated to drive said screw means in a predetermined increment of rotation, remotely controlled means for selectively actuating said pawl and ratchet means to drive said screw means through one increment of rotation in either direction while the spindle is rotating, said remotely controlled means comprising a piston rod mounted within said spindle for coaxial movement relative to said spindle, piston means coupled to said piston rod, and fluid pressure supply means for normally maintaining said piston rod in a predetermined neutral position and selectively operable to drive said piston rod in a stroke of predetermined length in either direction from said neutral position to actuate said pawl and ratchet means.
In a tool arm assembly having a rotary spindle including a face plate and tool mounting means mounted on said face plate for adjustably shifting a tool in predetermined step-by-step increments radially of said spindle while said face plate is rotating;
- the improvement wherein said tool mounting means comprises a resilient steel bar member supported by and rotatable with said spindle, and extending radially of said spindle, said bar member having a first portion fixedly supported on said face plate and a mount portion resiliently coupled to said first portion for movement relative to said first portion radially of said spindle, means for fixedly mounting a tool on said mount portion of said bar member, motion transmission means operable to shift said mount portion relative to said face plate, a bi-directional means operable when actuated to drive said motion transmission means a predetermined increment, said bi-directional means including a pawl and ratchet means;
- and remotely controlled means for selectively actuating said bi-directional means to drive said motion transmission means through one increment in either direction while the spindle is rotating;
- said motion transmission means including differential screw means operable when actuated to shift said mount portion relative to said first portion and comprising a first screw means connected to said bi-directional means to be actuated thereby and a second screw means having threads of a different number per inch than said first screw means connected to be actuated by said first screw means and to actuate said mount portion.
Dependencies are inferred from the claim text.