This two (2) station machine is called a Turbine Hub Weld Leak Test System. This mass spectrometer test system tests turbine hubs at a rate of 327 parts an hour. The hubs are metered into the test stand two (2) at a time from the existing line. Both the hubs are stopped at pre-stops on the transfer conveyor.
The pre-stop cylinder for station 1 is dropped and the hub is metered into station 1’s fixture where it is lifted up, the part type is detected, and the test begins. Station 2’s pre-stop cylinder is dropped and the next hub is metered into station 2’s fixture where it is lifted up, the part type is detected, and the test begins once testing at station 1 is complete. Once the test is finished at both stations the hubs are dropped down in their respective fixtures and both parts are metered out the back of the test stand on the transfer conveyor.
If the part is an accept, the accept pilotlight is illuminated and the hub is transferred on the conveyor to the next line. If the part is a reject, the reject pilotlight is illuminated and the hub is transferred on the conveyor to the reject part slide. The reject slide then moves over and positions the hub onto the reject conveyor. Once on the conveyor, the reject hub rolls down the reject roller conveyor to be eventually unloaded by the operator.