• Indexing fixtures are very similar to indexing jigs.
• These fixtures are used for machining parts that must have machined details evenly spaced.
• The parts shown in Figure are examples of the uses of an indexing fixture.

Multistation fixtures

• Multistation fixtures are used primarily for high-speed, high-volume production runs, where the machining cycle must be continuous.

Duplex fixtures

• Duplex fixtures are the simplest form of multistation fixture, using only two stations.
• This form allows the loading and unloading operations to be performed while the machining operation is in progress.

For example

• Once the machining operation is complete at station 1, the tool is revolved and the cycle is repeated at station 2.
• At the same time, the part is unloaded at station 1 and a fresh part is loaded.