Composite machining is one of the most popular machining processes in the world of machining. It is an advanced manufacturing technology. Compound machining is to realize several different machining processes on one machine tool. Compound machining is the most widely used and the most difficult, that is, turning and milling compound machining. The turning and milling compound machining center is equivalent to the compound of a CNC lathe and a machining center.

　　Turn-milling compound machine tool is the fastest growing and most widely used CNC equipment among compound machining machine tools. Machine tool compounding is one of the important directions of machine tool development. Composite machine tools also include various forms such as turning and milling, turning, milling, milling, cutting and 3D printing, cutting and ultrasonic vibration, laser and stamping, etc. The purpose of composite is to make a machine tool have multiple functions. Functional, can complete multiple tasks in one clamping, improve processing efficiency and processing accuracy.

　　Advantage

　　Compared with the conventional CNC machining process, the outstanding advantages of composite machining are mainly reflected in the following aspects.

　　(1) Shorten the product manufacturing process chain and improve production efficiency. Turn-milling composite machining can realize all or most of the machining processes in one loading, thus greatly shortening the product manufacturing process chain. In this way, on the one hand, the production auxiliary time caused by the change of the loading card is reduced, and at the same time, the manufacturing cycle and waiting time of the tooling and fixture are also reduced, which can significantly improve the production efficiency.

　　(2) Reduce the number of clamping and improve the machining accuracy. The reduction in the number of card loadings avoids the accumulation of errors due to positioning fiducial conversions. At the same time, most of the turning-milling composite processing equipment has the function of online detection, which can realize the in-situ detection and precision control of key data in the manufacturing process, thereby improving the processing precision of products.

　　(3) Reduce the floor space and reduce the production cost. Although the price of a single turn-milling compound processing equipment is relatively high, due to the shortening of the manufacturing process chain and the reduction of equipment required for the product, as well as the reduction of the number of fixtures, workshop area and equipment maintenance costs, it can effectively reduce the overall fixed assets. The cost of investment, production operation and management.