The manufacturing quality of
stamping parts has a great impact on the quality of the whole vehicle, especially for cars and all kinds of buses. In the manufacturing of stampings, it depends on whether large stampings, interior trim parts, and welders with complex spatial geometry are rolled, or whether small stampings and interior trim parts are easy to be rolled, more professional inspection fixtures (hereinafter referred to as inspection fixtures) are used as an important inspection means to control the product quality between programs. The inspection tool has the advantages of rapidity, accuracy, intuitiveness and convenience. It is especially suitable for the needs of mass production. After the mid-1980s, with the rapid development of the car and bus industry, stamping inspection tools have been widely used in China's automobile industry.