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The Robot
The robot is the part of the operation that does the automated welding. This is usually accomplished by lasers. There are different types of robots, according to their coordinating system. Many robots work on several axis of movement at the same time, allowing them to use multiple arms to weld on different parts of the product simultaneously. The laser is emitted from a welding pistol at the end of its arms.
The Manipulator
The manipulator is the axis, or arm of the modular cell that positions and moves the object being welded. They are designed specifically for the types of objects they are used on, and some have multiple sets of bearings that allow them to rotate as necessary. Manipulators are programmed for their required tasks, such as turning the object for rotational welding and placing it on a jig. In jigless robots, multiple manipulators hold the object in place.
The Jig
The jig is used to hold two objects or products together before they are welded. They secure the object in place, ensuring a smooth, precise connection. The jig, depending on the products being welded, can be either loaded manually or by the robot itself. Some modular welding cells do not use jigs, but instead the robot holds the object in place with extra manipulator arms.
The Programming
Robots have a command system that acts as their "brains." This is programmed by the operator to carry out its specific function. Many robots have a programming box with a touch screen for task dictation. The command system is equipped with a process interfaced card and various installed programs. Some robots can use visual inspection to determine if the weld was successful.