"Fixture generally refers to the auxiliary tools for positioning, limiting and fastening parts in the machining industry; For example, the most common machine tool fixtures include vice, three-jaw chuck, precision small vice for grinder, T-block, screw, modular (iron) assembly and so on. Broadly speaking, the concept of jig, or extended jig, also belongs to jig, such as machining center, spark machine, magnetic table (disk) for grinder, sinusoidal magnetic table and so on.

Fixture refers to a kind of mechanical equipment used to fix and position workpieces in industrial production. It usually consists of a clamping device and a supporting device. The clamping device can tightly fix the workpiece on the workbench, and the supporting device can provide necessary supporting force to ensure that the workpiece will not move or loosen during machining.