Robotic Arc Welding Fixtures [GMAW] [MIG]

What is a Robotic Arc Welding Fixture?

A robotic arc welding fixture is a part-holding tool used to constrain components for welding in an automated system. Normally this tool needs to be custom built for the welding process and be built to have adjustability for fixture tune-in to the proper dimensions. Sometimes these fixtures are used on turnkey robotic cells with positioners built-in, other times a custom robotic cell is required. The parts to be welded in the welding fixture are often loose stampings made of steel or aluminum, although other materials & assemblies may be used as well. Weld fixture clamping is most frequently achieved with pneumatic or manual actuators. The weld jig must hold the parts to the callouts on the welded assembly print and allow for all weld points to be accessed with a welding torch mounted to a robot.

Stryver has over 25 years of experience designing, building, integrating & installing automated welding jigs, fixtures & tooling. Let us put that experience to work for you to overcome these challenges on your project to achieve a successful outcome.

Please review our examples below to get a better idea of our tooling designs and strategies.

As can be seen above, fixturing a MIG or TIG welded assembly process for robotic welding presents many challenges for the welding jig.

The subcomponents of the welded assembly must be properly oriented and constrained in the welding fixture according to the datums & locating features. Heat needs to be dissipated quickly from the weld tooling, especially with GMAW welding jigs, to minimize the possibility of part deformation. Weld spatter protection is required to ensure parts unloaded from the robotic welding fixture do not require post-welding modifications or repair.

In recent years, many high strength steel alloys (HSS) have been introduced, especially in automotive applications, to reduce weight and increase strength. The material properties of these alloys can present additional challenges for the weld tooling, as additional heat input may be required for fusion. Additional heat input into the weld tooling compounds many problems experienced above. More challenges come from the increased need for quality checks and other weld fixture-based data collection required to ensure proper part assembly & quality.

Our team has designed & built weld fixtures with fail-safe solutions built-in to minimize the possibility of issues including part deformation due to excess heat, improper fusion, voids, improper weld bead size, missing parts in the assembly, improper part fit-up, spatter build-up and weld porosity. Stryver’s welding fixtures, tooling & jigs are designed to be as compact as possible. Our fixtures and tooling jigs are designed to ensure a controlled welding environment, locking components into place inside the automated jig to minimize deflection with well-designed weld tooling clamping systems.

Stryver has the experience to make sure your tooling fully supports your robotic welding process, whether that process is GMAW, GTAW, or another Arc welding process. Stryver can also accommodate laser welding tooling & fixturing projects, which require even tighter part holding tolerances.