The model of a numerically controlled high-precision cylindrical grinder is now used to illustrate the representation method of the grinder model. Significant improvements in the structure and performance of the grinder are represented by the sequence A, B, C. Gear grinders and thread grinders are denoted by Y and S respectively, and are pronounced as 'teeth' and 'wire'. For example, B in the model MB1432A represents a semi-automatic universal cylindrical grinder.); 2\u2014internal grinder (such as M2110A, MGD2110, etc.) 3\u2014Grinding machine; 4\u2014Grinding machine, honing machine; 5\u2014Guide grinding machine; 6\u2014Tool sharpening machine (M6025A, M6110, etc. The meanings of commonly used grinder models are as follows: M1432B stands for universal cylindrical grinder, the maximum grinding diameter is 320mm, after the second major structural improvement; MM1420 stands for precision universal cylindrical grinder, the maximum grinding diameter is 200mm; MBS1332A stands for semi-automatic high-speed external cylindrical The grinder, with a maximum grinding diameter of 320mm, has undergone the first major structural improvement. MG1432A represents a high-precision universal cylindrical grinder with a maximum grinding diameter of 320mm, which has undergone the first structural improvement.); 8 \u2014 Crankshaft, camshaft, spline shaft and roll shaft grinder (such as M8240A, M8312, M8612A, MG8425, etc.); 7\u2014Plane and end grinder (such as M7120A, MG7132, M7332A, M7475B, etc.\ufeffThere are many types of grinders.. MB1632 represents the semi-automatic end face cylindrical grinder with a maximum turning diameter of 320mm; M1080 represents a centerless cylindrical grinder with a maximum grinding diameter of 80mm; M2110 represents an internal cylindrical grinder with a maximum grinding aperture of 110mm;M7120A represents a horizontal axis surface grinder, working The table width is 200mm, after the first major structural improvement; M7475B represents the vertical axis round table surface Mechanical Bearing 6300 grinder, the table diameter is 750mm, after the second major structural improvement; M6025A represents the universal tool grinder, the maximum rotating diameter is 250mm, after the first Significant structural improvement; S7332 represents a thread grinder with a maximum workpiece diameter of 320mm. According to the GB\/T15375-1994 grinder class, group, and department classification table, the types of grinders in my country are divided into three categories.. Bearing rings, ball, blade grinders belong to the third category, represented by 3M. General grinders are the first type, represented by the letter M and pronounced 'grinding'