The design of fixture processing is based on the principle of simplicity, ease of use and safety, which is reflected in the structure and the workpiece. Therefore, it hardly takes much effort to know how to do it, from drawing to assembly to successful debugging. Clamps and fixtures in the electronic industry are generally classified into pressing, bending, cutting, riveting, welding, testing and fixing. Of course, they can also be divided into ordinary and special categories. They can be sorted out according to personal preferences or professional books. Basically, in addition to electrical measurement and welding, most factories have their own design department or simply make their own products. There are many solutions for fixtures at the same workstation. Sometimes it is necessary to comprehensively consider product characteristics, capacity requirements, cost control and other factors before finalizing. In fact, this process is more an analysis ability other than machinery than the so-called design ability.