These Trunnions were completely designed and manufactured by Motion Index Drives.

These custom weld positioning trunnion using VTMF 1010 precision indexing trunnion. The positional accuracies the VTMF1000 will achieve are very low single-digit Arc Seconds. The VTMF is a highly preloaded system, and the servo reducers we use are also extremely low backlash. Both the headstock and tailstock are supported by heavy duty tubular structure frame weldments. The complete assemblies are painted per the customer requirements.

The front of the headstock is designed with a cable management system. This allows the customer to run the utilities through the cable carrier, and out to the fixture. In this design the Grounding will be passed through the center thru hole of the indexer. This unit is being controlled with an AC motor with absolute encoder. It can also be equipped with an aux axis robot or standard servo motor.

The headstock is also comprised of a “Lock-out” mechanism for operator or maintenance personnel safety. If someone needs to enter the cell and be inside the safety gates, the cylinders in the lock-out device will be actuated. The safety pin will extend and engage into the lock-out plate. The plate is designed with a pattern of slots, to allow at least one pin to be engaged throughout the 360 degrees of potential rotation.

The design called for a home prox switch as well as overtravel switch protection. The overtravel switch protects the cable management system from wrapping itself up on the spool too far or unwrap the other way past fully extended.

The tailstock is designed with a large Pillow Block bearing assembly, with adjustability to align the tooling and frame with the headstock.