The direct coupling of two twisterbands HD with two R4 energy chains and chainflex cables. The up to nine chainflex cables for the energy supply as well as the other media cables, such as cooling, sensors, servo and encoder cables, which must all be able to cope with these rotational movements, are guided through energy chain tubes of the R4.28 series and TBHD.30-type twisterbands HD. The twisterband HD is a strong, yet very compact, spiral-shaped energy chain for circular movements, with rotations of up to 20 times around its own axis. With the twisterband, rotational movements of up to 7,000° horizontally and 3,000° vertically are possible in the smallest of spaces, even at speeds of up to 180°/s. Media cables and bus signals can be guided in an easy, uninterrupted and cost-effective way. In the HD version, the individual chain links are connected to each other using a pin-hook principle. This results in a defined bend radius and greater stability. In addition, the 24/7 design of the components ensures low-maintenance and low-wear operation. Replacement is quick and easy when servicing is required.
"The solution is very robust and reliable," emphasises Alexander Feineis, Development Engineer at Grenzbach. "We have already carried out several endurance tests without a failure, so we are looking forward to being able to use the joint energy supply solution in many more gantry machines in future."
