igus supplies “electromechanical joint arms“. They consist of:
- robolink joints with worm gears (RL-D) and strain wave gears (RL-S),
- igus stepper motors NEMA11, -17, -23 and -23XL,
- Ini-switches for the Zero-Point definition (BC version) or Output encoders (BC-AE version),
- connection parts between these joints (folded metal sheets RL-DC)
- a set of igus cables (5m long) and e-chains for the connection to a control unit
- OPTIONAL: an adapter for the connection of an Actuator (gripper, suction cup, camera,…)
Please find attached data sheets and STEP data for the different configurations:
“small version” with 2x RL-D-30 and 2x RL-D-20 (payload max. 1 kg, reach ~600 mm)
“big version” with 2x RL-D-50 1x RL-D-30 and 1x RL-D-20 (payload max. 3 kg, reach ~750 mm)
with our new robolink design tool, you can design your individual robot and operate it easily. NEW feature: you can see the max. payload and reach directly, depending on your design! Attached is a little instruction how to make use of this (we need your confirmation of exclusion of liability before it is available – sorry).
We supply 2 options of encoders for our joints / joint arms.
Option 1 (our Standard before HMI 2017): Motorencoder plus Ini switch for 0-point reference on the joint output (PRT bearing)
Option 2): Output encoder on the PRT bearing of the joint. This is our own development, we use a magnetic ring plus Encoderchip on the output with an aditional magnet and Hall Sensor as reference point. Please find attached a description of the output encoder attached in GER and ENGL. Advantage: less cables, higher resolution, more accuracy for the arm.
I want to supply more data for you to be downloaded, especially about our RL-DC “standard arms”. Our standard arms include all joints, motors, connections (=c-shaped metal sheets), cables and chains. Attached our NEW catalogue (now also available in ENG), STEP data for our 8 standard configurations and also the related drawings with part lists. We have “small arms” (up to 1 kg, based on our joints RL-D-30 and RL-D-20) as 4 or 5 DOF and “big arms” (up to 3 kg, based on our joints RL-D-50, -30 and -20).
Version With motorencoder and Ini switch or “output encoders” (-AE). I will explain the difference in a later entry.
we run regular lifetime tests with our gears in our lab. Based on these tests, we did some inside changes in our gears, most important is the change of gear geometry and gear pulley material during the last months (from iglidur J to iglidur A 180). By this, we improved lifetime and friction (efficiency) in the joints. Please find attached NEW data sheets for our joints, now also including the current standard transmission ratios we can supply from stock (from 1:5 up to 1:70).
NEW Data sheet for symmetrical joints with 2 bearings (vertical installation)
NEW Data sheet for asymmetrical joints with 1 bearing (horizontal installation)