its a UR10e - it won't be reaching out far and safety planes will be in place to prevent it moving beyond it's work area.
My current calculations, based on if I was installing light barriers, is that the MSD is 960mm away from the edge of the work area.
Using S = K(t1+t2)+C
K is 1600 (body movement), t1 is 400ms (UR documented stop time) and t2 is 200ms and c=0 (no additional distance required for things like ability to reach over, etc)
I’m looking at an application whereby I need to create a safe zone around a robot operating area.
I’m struggling to fully calculate to minimum safe distance.
I’ve seen the calculations for light barriers, but for the calculation you need to know the light barrier resolution.
With this being a safety radar, it doesn’t have a resolution. I used the <40mm resolution for getting a rough idea and I’m getting a measurement of 1465mm minimum distance.
However, I’ve seen plenty of machines with way less than that to the light barrier with tools (router heads) that have a slow stopping time, so how can a robot that has a much quicker stopping time need such a large safety distance?
Reason we went with the radar was due to parts being stored within the zone and the radar would ignore them as static objects. Light barriers would be blocked and laser scanners would detect them. Radar recognises them as static objects and will thus ignore them after the delay time.
Ideally I need a tighter safety zone as the customer does not have the space to accommodate such a large area. The machine itself is only 1.2m wide, but with safety it is increased up to 4m.
Firstly, I need to ensure how to calculate the right MSD with the sick rs3 9m safety radar. I’m waiting to hear back from Sick to assist with this
I've seen a few comments on LinkedIn recently, about an industrial robot being faster and cheaper then a Universal Robot, so why would we use a UR for this application...?
Last time I checked any prices of industrial robots, UR's were vastly cheaper. Of course, they're not all like for like and I know there's a lot more industrial robots on the market that have lower payloads and reaches that the traditional old industrial robots that I've seen in the past.
As no one ever states the prices of the robots, and without having to go through the whole sales process with each brand, which I don't really have the time for (just want the price of X robot, quickly!) then I'm not sure on what prices are like these days for industrial robots.
So, does anyone have an idea, of costs of equivalent industrial robots to a UR10e (10kg payload, 1300mm reach) in the UK?
Put it this way, does any of the major brands (Kuka, ABB, Yaskawa, Fanuc, etc) do a robot with that payload and reach for less than £30k?
If so, I think it's time we looked into more IR over collaborative robots! We are not doing collaborative applications much anyway.
I'm familiar with the URcap for setting up a remote TCP and loading into the program a toolpath created in Solidworks with the UR plugin.
This is fine for many applications, such as dispensing, routing, or even just having a pen as the TCP and the robot holding an object that is then drawn on.
However, for a project, that I thought would be relatively simple using this method, has suddenly become not so simple and I'm struggling to work out how to best approach it.
The part that the robot would hold will be a piece of wood. The remote TCP would be a bandsaw.
Using the above method means the part orientation is the same and it is driven across the RTCP at various angles. The bandsaw, however, can only have a single approach (and retract) direction, so the part needs to be orientated correctly to the blade.
The part shapes will vary depending on production run and when new designs are released, we need to easily reprogram, hence loading in a toolpath generated in CAD would be our preferred approach.
There will also be curved cuts, not just straight cuts.
