Welding Jigs and Fixtures


Welding Jigs and Fixtures Welding Jigs Welding Fixtures Welding Fixture Classification Welding Fixture Characteristics Mostly Used Welding Equipment Fixtures Considearble Points in Fixture Selection Principles Governing Design of Good Welding Jigs and Fixtures Types of Jigs and Fixtures

Welding Jigs and Fixtures

Welding Fixture Classification - Welding fixtures fall into two broad classifications:
1. Those that act on the work being welded.
2. Those that act on the welding equipment.

1. A welding fixture for the work may clamp the parts together while simultaneously supporting them, the objective being to effect a weld in the flat position.
fixture may hold the work stationary in which case the welding equipment moves or is traveled over it or may be mechanized and move the work under the stationary welding equipment. Some typical work-moving types of fixtures are rotating positioners, power turning rolls, lathes, and mill type setups etc.

2. Welding equipment fixtures (some are called welding manipulators) may provide only stationary support - or both support and travel to the welding equipment. The equipment may be no more than a welding head or welding gun - or it may include all of the equipment in the welding circuit, including the power sources and even the flux recovery unit.
The fixtures for holding the head stationary, range from a simple arm and mounting bracket, to the very complex installations common in continuous mill welding.
The types of fixtures that both support and travel the welding equipment include the beam with carriage, the self-propelled tractor, the spud welding unit and a variety of boom type welding manipulators.
Variations in the boom type manipulators include column stationary and boom travel variable and both boom and column movable with variable travel.

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