Press line equipped with robots

Martinrea has set a clear goal for itself: to be the world’s best auto-parts supplier.

To achieve its objective, the company and employer of roughly 15,000 people decided to equip its first large-scale press line in Mexico (at its facility in Silao) with a blank loader and multiple Crossbar Robot 4.0 units from Schuler, thereby gaining the ability to provide its customers with maximum flexibility.
The blank loader is suitable for outer skin parts. Here, the new optical line scanner from Schuler detects the precise position of the blanks before they are loaded into the first press. A Crossbar Robot then corrects the position as needed.
The Crossbar Robots 4.0 are the centrepiece of Martinrea’s press line in Silao. They transport parts directly from one press station to the next, and can accurately position the components for any die. Especially where multi-part components are produced, this flexibility delivers an important advantage.
Since the Crossbar Robot is hung on a track, it can cover distances of up to 12 m between press stations. Distances this large are mainly found on older lines, where space was provided for an unloading or turning station. This configuration means that the new Crossbar Robot can replace loading feeders, unloading feeders and part orientation stations in the gap between presses.
The Crossbar Robot is based on a six-axis industrial robot that was expanded by Schuler to include two additional axes: one for the hand of the robot arm and one for the horizontal drive. This enhancement significantly increases the robot’s range of motion, flexibility and output.
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