General-purpose fixtures
Examples include three-jaw self-centering chucks and four-jaw single-action chucks commonly used on lathes, and flat-jaw vises, indexing heads, and rotary tables commonly used on milling machines. These fixtures are named for their versatility. General-purpose fixtures are generally standardized and manufactured by specialized factories, often provided to users as standard machine tool accessories.
Special-purpose fixtures
These fixtures are specifically designed for a particular workpiece and a specific process, hence their name. The drilling fixture in the example above is a special-purpose fixture.
General-purpose adjustable fixtures and group fixtures
These fixtures are characterized by replaceable components and adjustable parts to accommodate the machining of different parts. Fixtures used for group machining of similar parts are called group fixtures. Compared to group fixtures, general-purpose adjustable fixtures have a less defined machining target and a wider range of applications.
Traveling Fixture
This type of fixture is used in automated lines or flexible manufacturing systems. The workpiece is mounted on the traveling fixture, which not only positions and clamps the workpiece but also carries it via a transport device to various machine tools, where it is positioned and clamped.
Modular Fixture
This type of fixture is assembled from a set of completely standardized components according to the machining requirements of the parts. Like building blocks, different combinations and connections of different components can create fixtures with different structures and uses. The characteristics of this type of fixture are flexibility, versatility, short manufacturing cycle, and reusable components.
