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)
At this year’s MOTEK show in Stuttgart (GER) we will show the possibility to build 4 DOF robot arms with our motorized joints. 2 films at the end of this entry show 2 possible concepts:
1) “small” version with 4 joints size 30 – 30 -20 – 20, built with igus DC motors. No programming possible, just a joystick control.
2) “big” version with 4 joints size 50 – 50 – 30 – 20, built with igus stepper motors and a robolink gripper.
Please be aware that both arms are no sales products. They are examples of how a joint arm could look like. The connection parts are made of folded metal sheet parts. Please contact me for further questions in this issue (firstname.lastname@example.org).
Also attached our new catalogue (this version in GER with more RL-D infos and german list prices). Eng. version will follow soon.
LINK: de_robolink_08-2015 (3.80 mb)
And additionally 2 updated versions of tech. data sheets for symmetrical joints (version 101 with 2 PRT) and asymmetrical joints (version 102 with 1 PRT)
LINK: tech-data-rl-d-101_d-eng_15_11 (171.03 kb)
LINK: tech-data-rl-d-102-_d-eng_16_01 (162.11 kb)
The Basic idea of our NEW RL-D Joints is, that every Joint can be composed out of several components (Joint kit). Main differentiations are:
# Rotary sliding bearing igus PRT-01 (aluminum table with iglidur J sliding elements) or PRT-02-AL (aluminum ring with compact plastic ring made of iglidur J4) or PRT-02-LC (outer aluminum ring replaced by moulded outer ring => low cost solution).
# worm shaft made of hard anodized aluminum, or as injection moulded plastic part (iglidur RN33), additional materials as an Option.
# axial bearings of the worm shaft as roller bearings or thrust washer made of iglidur J.
# worm wheel currently made of iglidur J, additional materials will be offered in the future.
We have pre defined 3 general Solutions. Standard will make use of PRT-02-AL, hard anodized aluminum worm shaft with roller bearings. For the “high-end” solution, PRT-02-AL will be replaced by PRT-01, the low cost solution will contain PRT-02-LC, worm shaft made of iglidur RN33 and thrust washers as axial bearings => see Pictures. STEP data of all Solutions for 3 sizes attached.
Annotation: RL-D-50-xxx is currently only possible as high-end solution. PRT-02-AL or -LC are not yet available at igus.
RL-D-xx-101 (symmetric Version with 2 PRT (used in our trade Show robots)
RL-D-xx-102 (asymmetric Version with 1 PRT (used as first axis or for horizontal applications)
Please find attached current (preliminary) data sheets for our new robolink D Joints. These Joints exist in 3 sizes: -20, -30 and -50 (based on the Dimensions of our rotary sliding tables PRT).
RL-D-xx-101: symmetrical Joint with 2 PPRT for vertical Installation (used in our robotic arms),
tech data RL-D-101 _D-ENG_.pdf (167.44 kb)
RL-D-xx-102: asymmetrical Joint with 1 PRT for horizontal Installation (used as positioning device or as 1st axis in a robotic arm)
tech data RL-D-102 _D-ENG_.pdf (150.10 kb)
I will publish 3D Step data of These Joints beginning of next week in this blog.
please find attached an update of the robolink technical documentation paper.
It is based on the wire driven robolink joints. A similar document for robolink D (direct drive) will follow later this year.
Documentation_robolink_kit_(#3 _15-01)_EN.pdf (3.33 mb)