Turning – Lathe – Multiple
Patent
1998-04-08
1999-09-21
Pitts, Andrea L.
Turning
Lathe
Multiple
82133, 82118, 82144, B23B 1304
Patent
active
059539704
ABSTRACT:
A retrofit for an electronically programmable, servo-controlled power feed and spindle drive system for controlling the spindle and cam shaft drive of an automatic screw machine. The automatic screw machine originally provides rotational power to the spindles of the cam shaft drive through a complex series of gears, shafts and clutch systems. The gears, shafts and clutch systems also provide synchronization between the rotation of the spindles and the rotation of the cam shaft drive. A retrofit of the automatic screw machine includes replacement of the complex series of gears, shafts and clutch systems with a variable speed drive motor, a chain drive system, an electronic encoder for monitoring the rotational speed of the spindle shaft, an electric servo motor for providing rotational power to the cam shaft drive and a central processing unit to synchronize the speeds of the variable speed motor and electric servo motor. The result is an automatic screw machine adapted with an electronic control system that requires minimum alteration or reconstruction of the original machine.
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Flyer for "AccuDrive.TM. Zero Backlash Worm Gearing," Cone Drive Textron.
Haller Dennis A.
Saputo John J.
Pitts Andrea L.
Ski Industries, Inc.
Tsai Henry W. H.
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