Data processing: generic control systems or specific application – Specific application – apparatus or process – Product assembly or manufacturing
Patent
1997-04-08
2000-05-30
Grant, William
Data processing: generic control systems or specific application
Specific application, apparatus or process
Product assembly or manufacturing
212 76, G05G 1100
Patent
active
060701064
ABSTRACT:
A cable drive mechanism is provided for causing and controlling movement of a tool carriage in three axis of a large format, light duty, numerically controlled tool suitable for machining goods. The shaft of a carriage-mounted motor serves as a capstan for two opposing loops of a continuous flexible steel cable. Each loop encircles 180 .degree. of motor shaft after having passed from the carriage to a pulley at one end of the axis and returning, then passing to a second pulley at the same end before passing the length of the axis to a pulley at the opposite end and to the second loop encircling the motor shaft. Such a cable drive system, in conjunction with a control and feedback means, provides an economical means to control movement of the tool carriage in 3 dimensions with accuracy suitable for woodworking with the ability to machine sheet goods such as plywood. The continuous cable loop system with carriage mounted motor provides symmetrical drive power irrespective of the position of the carriage. In an alternate embodiment, data processing system software controls the movement of the tool carriage through computer control of the cable drive mechanism which allows computer control of the manufacturing process.
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Bahta Kidest
Grant William
Martin Rick
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