Three minutes to understand the milling compound.

turn-milling compound machine tool is the compound processing machine tool in the fastest growing, the most widely used CNC equipment. Machine tool compound is one of the important directions of machine tool development. The composite machine tool also includes various forms such as turn-milling composite, turn-milling composite, milling composite, cutting and 3D printing composite, cutting and ultrasonic vibration composite, laser and stamping composite, etc. The purpose of composite is to make a machine tool multifunctional, can complete multiple tasks at one time, and improve processing efficiency and processing accuracy. Compared with the conventional CNC machining process, the outstanding advantages of compound machining are mainly manifested in the following aspects.

(1) Shorten the product manufacturing process chain and improve production efficiency. Turning and milling compound processing can complete all or most of the processing procedures at one time, thus greatly shortening the product manufacturing process chain. On the one hand, this reduces the production auxiliary time due to the change of the card, and also reduces the manufacturing cycle and waiting time of the tooling fixture, 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 loading avoids the accumulation of errors due to the conversion of the positioning reference. At the same time, most of the turn-milling composite processing equipment has the function of online detection, which can realize the in-situ detection and precision control of the key data of the manufacturing process, so as to improve the processing accuracy of the product.
(3) Reduce floor space and reduce production costs. Although the single price of turn-milling composite processing equipment is relatively high, but due to the shortening of the manufacturing process chain and the reduction of equipment required for products, as well as the number of fixtures, workshop floor space and equipment maintenance costs, can effectively reduce the overall fixed asset investment, production operations and management costs.

Development Status

Most of the turning and milling combined processing is completed on the turning center, while the general turning center only replaces the common turret tool holder of the numerical control lathe with the turret tool holder with the power tool, and the spindle adds the C- axis function. Due to the turret turret structure, size constraints, the power of the power head is small, the speed is not high, can not install a larger tool. Such a turning center to the car, milling, drilling function is only to do some auxiliary processing. The cost of the power tool holder is expensive, resulting in the high cost of the turning center. The domestic price generally exceeds 100000, and the imported price exceeds 200000. The general user cannot afford it. Most of the economical turn-milling compound is XZC axis, that is, a rotating C axis is added to the chuck to realize the basic milling function.