3 Patented roller mechanism: precise, highly dynamic positioning Linear axes EGC 70-160 Pneumatic standard cylinder DNC 32-160 Swivel module DSM 6 Drive unit located under the work surface The drive unit consists of two mutually opposed EGC 70-160 electrical linear axes, which move the pyramid of spring steel rods with a stroke of 120 mm. The tripod can thus grasp and deposit objects. Two DNC 32-160 standard pneumatic cylinders are mounted on each of the two electric linear axes. Each pneumatic cylinder moves one of the four spring steel rods of the pyramid configuration. The rods have a diameter of 3 mm. The movement of the rod linkage by means of the four standard pneumatic cylinders describes a spherical surface. The drive units are all located under the work surface. This arrangement separates the drive level from the working level, and the overall system thus has a very low centre of gravity. This gives the handling unit additional stability and enables highly dynamic working processes. The work surface protects the drive unit from external influences, which is of great advantage in dusty and dirty environments. This configuration is also a highly space-saving design for a handling system. Roller mechanism for deflection of the rod pyramid The roller mechanism, which serves to precisely guide the four spring steel elements of the rod kinematics system, comprises three independently seated levels. At each level, the spring steel rods move between freely mounted guide rollers. This allows the pyramid of rods to deflect by as much as 90 degrees in any direction. It is only this patented roller mechanism that enables the entire system to be displaced in a highly dynamic manner.
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