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  • Author Author: tariq.ahmad
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How to Automate Industrial Welding Positioners with Arduino -- Episode 566

In this episode we are looking at a couple of welding positioners that I worked on. Retrofitting one from an old lost PLC to arduino, and another built from scratch. Both of these devices are designed for use with a TIG welder. The rotary positioner puts the work where you need it, and the linear positioner holds the torch and moves it in a precise line to get perfect dimes!

Bill of Material:

Product Name Manufacturer Quantity Buy Kit
Arduino UNO Arduino 2 Buy Now
Toggle Switch EATON 2 Buy Now
Rotary Encoder Bourns 1 Buy Now
Power Supply XP Power 2 Buy Now
 

Additional Parts:

3v Relay Module
8ch Optoisolator
NEMA 34 Stepper Motor
NEMA 32 Stepper Motor Driver
20x4 I2C LCD Display Module
Arduino UNO Screw Terminal Breakout Board

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  • One thing I forgot to mention in the video is how the system was grounded. I'll try to explain.

    When this shop was built, the guy that owns it built a steel mesh into the concrete with 3/4" threaded inserts at each intersection. He then tied the grounding for the building into that mesh, as well as tied it into the rebar in the concrete. He uses the threaded inserts to hold down equipment and projects, as well as using them for local grounding points. 

    The welder has a separate ground output which we had tied into this system, and the control box was grounded via the electrical receptacle. 

    -Kaleb

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  • One thing I forgot to mention in the video is how the system was grounded. I'll try to explain.

    When this shop was built, the guy that owns it built a steel mesh into the concrete with 3/4" threaded inserts at each intersection. He then tied the grounding for the building into that mesh, as well as tied it into the rebar in the concrete. He uses the threaded inserts to hold down equipment and projects, as well as using them for local grounding points. 

    The welder has a separate ground output which we had tied into this system, and the control box was grounded via the electrical receptacle. 

    -Kaleb

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