The following points highlight the top six types of fixtures. The types are: 1. Plate Fixture 2. Angle Plate Fixture 3. Vise-Jaw Fixtures 4. Vise-Jaw Fixtures 5. Multi-Station Fixture 6. Profile Fixture.
Type # 1. Plate Fixture:
It is the simplest form of popular fixture due to its adaptability. The basic fixture is made from a flat plate which has a variety of clamps and locators to hold and locate the part. It is useful for most machining operations.
Type # 2. Angle Plate Fixture:
This is used when the part is to be machined at right angle to its locator. Angle-plate fixtures are normally made at 90 degrees, but other angles are also possible.
Type # 3. Vise-Jaw Fixtures:
It is used for machining small parts. The standard vise jaws are replaced with jaws conforming to the shape of the part to be fitted. Their use in limited only by the sizes of the vises available.
Type # 4. Vise-Jaw Fixtures:
It is used for machining parts having evenly spaced machined surfaces. (Refer Fig. 28.24).
Type # 5. Multi-Station Fixture:
It is used for high-speed high volume-production runs in which the machining cycle is continuous. This form of fixture allows the loading and unloading operations to be performed while the machining operations are in progress at different stations.
Type # 6. Profile Fixture:
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It is used to guide tools for machining contours which the machine cannot normally follow.