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Auto parts are mainly parts processed by CNC technology. Most of the parts of the car are related to CNC machine tools, that is, the parts are processed by computer-controlled CNC lathes, and the use of CNC processing methods has the advantages of stable product quality, high precision, and high production efficiency. The processing objects are mainly box parts, complex curved surfaces, special-shaped parts, cladding parts, and special processing.
Box-shaped parts generally require multi-station hole making and plane processing, and the tolerance requirements are relatively high, especially the geometric tolerance requirements are relatively strict, usually, through milling, drilling, expanding, boring, reaming, countersinking, tapping, and other processes. more knives. For the machining center for machining box parts, when there are many machining stations, the horizontal boring, and milling machining center are generally selected when the worktable needs to be rotated several times to complete the parts.
Complex surfaces play a particularly important role in machinery manufacturing, especially in the aerospace industry. It is difficult or even impossible to complete complex surfaces using ordinary machining methods. In my country, the traditional method is to use precision casting, which is conceivably less accurate.
Special-shaped parts are parts with irregular shapes, most of which require multi-station mixed processing of points, lines, and surfaces. The rigidity of special-shaped parts is generally poor, the clamping deformation is difficult to control, the machining accuracy is difficult to guarantee, and even some parts of some parts are difficult to complete with ordinary machine tools. When processing with a machining center, reasonable technological measures should be taken, one or two clampings, and the characteristics of multi-station point, line, and surface mixing processing of the machining center should be used to complete multiple or all processes.
