Transfer system combines rotary indexing and pallet transfer advantages

The LS linear transfer system combines the advantages of a rotary indexing and a pallet system. In principle it is a linear, modular, user-defined, extendable rotary indexing table. Two work-piece carriers are linked together to form a pair that run using precision guide rollers on a central guide rail. The carrier pair with its lateral roller bearings is picked up by a cylindrical cam at the entrance to the carrier locking station. Here the linear system effectively mimics a rotary indexing table with all its associated advantages: fast indexing time, gentle but rapid acceleration and deceleration, and highly accurate positioning without the need for additional operations such as lift and locate stations. Based on a 70 mm indexing pitch, this principle enables up to 60 smooth cycles per minute. The changeover time between workpiece carriers is 0.4 sec. Weiss says another benefit of the cylindrical cam principle used on the LS system is the fact that there are no problems with tolerance build up.