Robotic Welding Line

    Well, it will depend entirely on your welding system, and how it connects to the KRC. I/O will work basically the same as for a pick&place, but you'll have to map out and organize those signals based on what the welder needs. You may need to implement TRIGGERs and/or SYNC I/O commands to achieve things like striking an arc on the fly. Also, use IR_STOPM or SPS to ensure the arc gets turned off if the robot ever halts for any reason.

    The KUKA ArcTech package is built to do most of this for you.

    as you stated you made lots of pick and place applications previously finding documentation should not be an issue. As you said you have a backup from a similar project but it is too complicated, i would take that as a good sign to hire someone else to do it. If finding documentation is this hard, when it is free and openly available and first pinned topic in this forum more or less explains in meticolous detail how to get such things and from where. I would not recommend attempting it yourself. There will be actually though and hard to figure out things along the way but if you cannot even get to the starting line on your own why even try?

    please note, you do not decide who can poste what and where (including replies). this is a public forum and unless post is abusive or otherwise inappropriate, it stays.

    also you may not appreciate what Hes wrote but that was an attempt to help and it contains good suggestions and valid points. you may want to read it again.

    1) read pinned topic: READ FIRST...

    2) if you have an issue with robot, post question in the correct forum section... do NOT contact me directly

    3) read 1 and 2

    Quote from GoodFellas41

    how can i find a documantation about commisioning a robot for welding projects?

    i don't even know how can i cable technology cabinet, water and air.

    Well, the basic robot commissioning will be the same as for your pick&place KUKAbots. Ditto for SafeOp.

    ServoGun operation depends on the gun. Servo weld guns are usually treated as the robot's 7th axis, and uses the torque feedback from the servo to determine the tip force. There is usually a calibration process for that, which should be documented in the ServoGun documentation which came with the KRC (check under D:\KUKA_OPT). The gun may also have an I/O node for water/air sensors or other items like a "full open" position sensor, and that I/O node will have to be mapped.

    Cabling, air, and water to the gun depends entirely on the brand of gun, and its design -- there are a plethora of different types. The gun should come with its own documentation of these items. In general, you need to supply a closed loop of cooling water. The gun may or may not need air, and that air may be valved or constant. You also need to provide welding power, which is where things get potentially dangerous. Typically, there is a Weld Controller/Timer, which is supplied 3ph 480VAC (and also requires water cooling). After this, things can vary -- the WC may convert the high-voltage into low-voltage but high-current AC or DC, or it may simply pass the "raw" 480VAC to a transformer located near the gun, which will convert 480VAC 100-amp supply to 48V 1000-amp welding current. This is something that should really be done by someone with a lot of experience in wiring dangerous voltages.

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