T-Flex: Compliant Flexure-based Large Range Precision Hexapod
Ғылым және технология
The T-Flex is a motion stage hexapod for precision manipulation. It achieves a large range of motion and a high repeatability by using custom designed flexure joints. The T-Flex has been developed at the Precision Engineering lab (prof.dr.ir. Dannis Brouwer).
Details can be found in the following publications in Elsevier's Precision Engineering journal:
- Naves et al. 2021. "T-Flex: A fully flexure-based large range of motion precision hexapod".
doi.org/10.1016/j.precisionen...
- Naves et al. 2020. "Flexure-based 60 degrees stroke actuator suspension for a high torque iron core motor".
doi.org/10.1016/j.precisionen...
- Naves et al. 2019. "Large stroke high off-axis stiffness three degree of freedom spherical flexure joint".
doi.org/10.1016/j.precisionen...
Additional details can be found in the PhD thesis of Mark Naves, principal designer of the T-Flex:
research.utwente.nl/en/public...
Research team:
Mark Naves, Marijn Nijenhuis, Bram Seinhorst, Wouter Hakvoort, Dannis Brouwer
Film by:
Joost Könemann, Stijn Scheepers, Marijn Nijenhuis, Dannis Brouwer
Chapters in this film:
00:00 T-Flex overview
01:15 Large range of motion
02:11 Kinematics
02:45 Spherical joints, exploded view
03:18 Actuated revolute joints, exploded view
03:51 Conclusion
Funding:
VIDI (14152), Dutch Research Council NWO TTW
MexFlex (16210), Dutch Research Council NWO TTW
Sectorplan Techniek
Пікірлер: 32
Very cool, big props to whoever designed this.
a truly amazing application of compliant mechanisms! congratulations
It's repeatability is mind-blowing. What was it's repeatability under max load?
The magic of flexures!
Utterly impressive
Excellent work!
Congratulations team UTwente... Prachtig...
What is the maximum dynamic load in kilogram!?
Impressive. I wonder, what is the repeatability in variable load conditions. Like in the mentioned assembly or milling applications.
@eblman5218
4 ай бұрын
There is one that a much simpler but has the same effect, it likely costs a small fraction of this. It's called "Parallel Axis Tripteron Concept" by Rudmin and it can move back and forth.
@vsijben
Ай бұрын
@@eblman5218 The Parallel Axis Tripteron Concept" by Rudmin may have the same motion range, but it is full of linear ball bearings and rotating ball bearings. All these bearings have friction, play, backlash and cause rumble due to the imperfect bearing surfaces, Also, The upper arms of the Tripteron carry bending loads, while the upper arms in this video only carry pure tension/compression loads. In other words, the precision and repeatability of the Tripteron are no match for those of this flexure-based mechanism. Additionally: the Tripteron has only TxTyTz translational freedom, while the flex concept has all six DOF's: TxTyTz and RxRyRz.
@eblman5218
Ай бұрын
@@vsijben That makes sense. I suppose it depends on the intended use of the thing as well. If this is meant to have something light weight rest on top of it, it could be overengineered. I do wonder what the intended use of this device would be? It looks like a car engine could go on it...? That does make sense what you were saying about The Parallel Axis Tripteron Concept having more points of potential failures with more bearings.
Supremely based
Is this mostly mechanical engineering?
What is the purpose of the outside plate of the revolute joint?
@Sx107music
5 ай бұрын
Counterweight probably
hell yea dude, could stick a radar on there
Where are the 6DOF ? I saw only 3. The final manipulated object can move only up/down, left/right, front/back. It can’t revolve around x,y and z axis, or can it ?
@roosterdoodster9220
4 ай бұрын
In the beginning you can see it rotating
@roosterdoodster9220
4 ай бұрын
In the beginning you can see it rotating
@roosterdoodster9220
4 ай бұрын
In the beginning you can see it rotating
@roosterdoodster9220
4 ай бұрын
In the beginning you can see it rotating
@roosterdoodster9220
4 ай бұрын
In the beginning you can see it rotating
Hexapodia is clearly the key insight.
I thought it was 100 microns at first but I just realized it was 100 nanometers😂 Absolutely insane!
Woah tsmc
Flexapod
Shut up and take my money ! 😍
No way 200mm dynamic range and Sub micron repeatability!?😱😳🤯
@WesHawkins0
5 ай бұрын
Right? This is honestly insane
It's hard to believe if Flexure joints will be able to apply very high forces needed in aerospace, manufacturing, motion simulators and other applications you are showing.