To allow cables in industrial robots to move safely, easily and compactly, Igus has developed a four-dimensional energy chain – the Triflex TRX.
The new design replaces the classic robot hose package and retraction system, it uses a unique telescopic mechanism inside the chain that allows a retraction of 40% of the length. This enables users to save space on the third axis of a robot, is cheaper and can weigh more than 80% less than a retraction system, according to Igus.
The three-dimensional Triflex R e-chains from Igus are used in industry when it comes to protecting lines and hoses on the robot fail-safe. In order to prevent loops that could hinder the robot during the movement of the energy chain system, withdrawal systems on the third axis are normally used.
“However, the axes to the robot offer less and less space, so a new solution had to be found,” said John Slater, product manager of triflex energy chain at Igus UK.
The Triflex TRX system was developed from the Triflex R energy chain, a four-dimensional energy chain in which the retraction system is integrated. “With TRX, we create a space-saving chain that can be fixed directly and compactly on the third axis,” added Slater.
“The energy flow is torting into itself, lengthening and shortening spirally in a telescopic action by up to 40%”.
For this purpose, Igus relies on the unique mechanism of a screw connector system as well as an integrated reset belt. The belt repeatedly brings the chain links to their starting point, whereby the retraction force is adjustable.
The cables are inserted in the form of a coil inside the chain and guided safely by the chain. In addition, the cables and hoses are attached in the middle of the TRX so as to remain in a good position when pulling on the chain.
