目前,汽车、拖拉机等制造业的生产过程,大部分企业采用流水线生产方式。如加工发动机连杆和曲轴等零件的生产线,大都采用数台或数十台专门设计的组合机床或专用机床,这些机床通过专门输送系统及工夹辅具,实现零件的自动化生产。人们通称这些生产线为“刚性”生产。如果零件稍有 At present, the manufacturing processes of automobiles, tractors and other manufacturing industries, most enterprises adopt the production line of assembly line. Such as processing engine connecting rod and crankshaft and other parts of the production line, mostly used in dozens or dozens of specially designed combination of machine tools or special machine tools, these machines through a special delivery system and a folder of auxiliary tools to achieve automated production parts. People call these production lines “rigid” production. If the part is slightly