Monitoring system for robot e-chains detects chain breakages

The new i.Sense TR. B sensor from Igus enables condition monitoring for triflex R energy chains in multi-axis applications, detecting breakages and preventing further damage.

Whether welding, painting, soldering or palletizing, industrial robots work dynamically. A flexible 3D energy chain such as the triflex R from Igus allows robot cables to be guided safely. To detect potential chain breaks caused by an excessive load in good time, and to avoid unplanned machine failures, i.Sense TR. B, the world’s first breakage monitoring system for 3D energy chains, was launched by at Automatica 2022.

Increasing material and energy efficiency, compensating for supply bottlenecks in domestic production and alleviating labour shortages are some of the most frequently cited reasons why industrial robots are important. For an industrial robot to work reliably, however, one thing above all is essential: safe cable routing. Robot cables must withstand numerous bending change cycles as well as loads caused by torsion and tension.

triflex R is a round energy chain with a defined bending radius designed for industrial robots to protect cables even during dynamic rotation and swivel movements. A chain breakage can be devastating, causing plant downtime and delays that cost huge amounts of time and money. To be able to detect a chain break in real time and prevent expensive subsequent damage, motion plastics specialist Igus says i.Sense TR. B is a cost-efficient solution for real-time fracture monitoring on the multi-axis triflex R energy chain.

With i.Sense TR. B, the proven i.Sense fracture monitoring is now also possible for dynamic applications that move in multiple axes, and users can therefore increase their robot systems’ safety for a very small financial outlay. The i.Sense TR. B Sensor is connected directly to the PLC customer control with no additional software costs.

If a chain link breaks, the system detects the change in length of the rope installed in the chain and sends a digital signal to the control system. This fast breakage detection allows immediate plant stoppage and can thus avoid unplanned downtime and total failures in the event of individual chain link breaks. “In cases such as automotive production lines with extremely high output, each downtime can cause costs of several £100,000,” says Justin Leonard, director of e-chains and smart plastic products at Igus UK. “Real-time condition monitoring of the energy supply of industrial robots therefore offers users considerable added value and peace of mind.”

With the help of numerous test series in the largest test laboratory in the motion plastics industry, Igus is constantly working to optimise the quality and durability of its products. The combination of flexible triflex R multi-axis chain with its high tensile force absorption, fitted with the i.Sense TR. B sensor, makes the safe guiding and protection of robot cables possible, which can increase their service life enormously.

Condition based maintenance using the TR. B sensors also makes maintenance more environmentally sustainable, as users can avoid premature or unnecessary product replacement. And if the chain breaks, the sensor is ready to be reused after the system has been switched off correctly.

igus (UK) Ltd

51A Caswell Road
Brackmills
Northampton
NN4 7PW
UNITED KINGDOM

+44 (0)1604 677240

sales@igus.co.uk

www.igus.co.uk

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