Coiled Robotic Power and Signal Cables
Original Publication Date: 1987-Sep-01
Included in the Prior Art Database: 2005-Feb-01
This article describes a guide mechanism for a robotic cable assembly. In a telescoping robot arm the continuous telescoping motion of the arm mechanism makes it difficult to run power and signal cables around the assembly to the three axes of the robot's wrist. The position feedback from the wrist assembly's three joints is accomplished by sending analog or digital signals from position potentiometers or encoders to the system control unit by way of shielded cables. These signals are, however, highly susceptible to electrical noise and cannot therefore be transmitted with the motor power signal leads, but must be in a separate shielded cable assembly. In the arrangement disclosed herein, two coiled retractable cables are utilized.