Types of fixtures

Types of fixtures

Fixtures are classified either by the machine they are used on, or by the process they perform on a particular machine tool. However, fixtures also may be identified by their basic construction features. For example, a lathe fixture made to turn radii is classified as a lathe radius turning fixture. But if this same fixture were a simple plate with a varity of locators and clamps mounted on a faceplate, it is also a plate fixture, like jigs, fixtures are made in a variety of different forms. While many fixtures use a combination of different features, almost all can be divided into five distinct groups. These include plate fixtures, angle plate fixtures, vise jaw fixtures, indexing fixtures, and multi-part, or multi-station fixtures.

Plate fixtures, as their name implies,,Waste Stainless steel Baler, are constructed from a plate with a variety of locators,,plastic injection mold, supports, and clamps. Plate fixtures are the most common type of fixture. Their versatility makes them adaptable for a wide range of different machine tools. Plate fixtures may be made from any number of different materials, depending on the application of the fixture.

The angle plate fixture is a modified form of plate fixture. Here, rather than having a reference surface parallel to the mounting surface, the angle plate fixture has a reference surface perpendicular to its mounting surface. This construction is very useful for those machining operations which are performed perpendicular to the primary reference surface of the fixture.

Vise jaw fixtures are basically modified vise jaw inserts which are machined to suit a particular workpiece.,Hong Kong Company Formation, In use, these modified vise jaes are installed in place of the standard, hardened jaws normally furnished with milling machine vises. Vise jaw fixtures are the least expensives type of fixture to produce, and since there are so few parts involved, they are also the simplest to modify.

Indexing fixture, like indexing jigs, are used to reference workpieces which must have machine details located at prescribed spacings.

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