Parts are the basic elements of the machine. The machine generally includes one or several motive parts (such as electric motors, internal combustion engines, steam engines) used to receive external energy;
the executive part that realizes the production functions of the machine (such as the tools in the machine tool), and transmits the motion and power of the prime mover to the execution Part of the transmission part (such as the gear and spiral transmission mechanism in the machine tool), which guarantees the coordinated work of the various parts of the machine (such as the CNC system in the machine tool) constitutes (that is, the machine is composed of the driving part, the transmission part, and the execution part , The measurement and control part constitutes). The machine is further decomposed, and various parts can be obtained.
