With the development of science and

With the development of science and technology, a variety of new materials, new processes and new technologies continue to emerge. Mechanical manufacturing technology is developing towards the direction of high quality, high productivity and low cost. The emergence of various new technologies breaks through the traditional category of mechanical energy and cutting force machining, and can process various difficult materials, complex surfaces and some parts with special requirements. With the emergence of CNC machine tools, the machining efficiency and accuracy of small batch renewal parts and complex shape parts have been improved. In particular, the rapid development of computing methods and computer technology has greatly promoted the progress of processing technology, and the automation of processing has reached a new stage.Since the end of the 20th century, modern manufacturing technology and machinery manufacturing process automation have made great progress. However, tools (including fixture, tool, measuring tool and auxiliary tool) are still playing a significant role in continuous innovation. Fixture directly affects the quality, productivity and product cost of parts processing. Therefore, no matter in traditional manufacturing or modern manufacturing system, fixture is an important process equipment.