Leantechnik presents a new three-axis positioning system for flexible 3D movements

This is possible thanks to the lifgo gear rack drives located on the three axes. By combining and synchronizing four lifgo gearboxes, the positioning system is able to move in different directions without the need for time-consuming modifications or conversion operations. As a result, the solution can achieve strokes of 500 mm along the X-axis, 250 mm along the Y-axis, and 350 mm along the Z-axis. The repeat accuracy of these movements is between +/- 0.02 and +/- 0.01 mm coupled with a lifting power of 3,500 N. Four such positioning units operating independently of one another pick up the body components at the top end and then clamp these in place using hook clamps. A joint control unit regulates the necessary distances between pick-up points individually for each vehicle model and also determines the stroke to match the operating height required for the welding robots and other production operations. It is also possible to raise or lower the bodywork on one side. The positioning system also excels through the excellent guidance of the gear racks which permits all movements to be performed with the utmost precision.

At the heart of the DAP lie the four Leantechnik lifgo gear rack drives which translate rotary into linear movements. To achieve this, a linear guided gear rack is driven by means of a precisely aligned quadruple roller guide. What makes this system so special is its compact design in which the drive and guide elements work together as a single unit. The lifgo gearbox shines thanks to its excellent positioning accuracy, high stroke speed and outstanding ability to absorb transverse forces. Leantechnik offers four variants of the solution for the four different sizes.