The best definition to give a fixture is that it is an agent of stability and positioning. It is a work-holding device with wide uses centered on securing, supporting or mounting a workpiece correctly on the CNC machine.
Fixture is an important tool that ensures conformity and interchangeability during the manufacturing process. In other words, it encourages a smooth manufacturing operation.
Fixture has wide applications in the manufacturing industry wherever CNC machining is employed. Its functions are integrated with the types of CNC operations used in the manufacturing process.