CNC Turn-Mill Composite Machining Is an Advanced Industry Processing Technology
CNC turn-mill composite machining is one of the currently internationally popular processing techniques in the field of mechanical machining. Our traditional processing method involves using corresponding processing machines for each step and procedure, and the product is completed only after the entire process is finished. However, this processing method incurs relatively high machinery costs and also consumes a great deal of electrical energy. In addition, after each procedure, we need to transport the workpiece, which wastes considerable working hours. It requires a large number of employees. Inspection also demands greater focus. CNC turn-mill composite machining is an advanced manufacturing technology that makes processing more convenient and efficient. CNC turn-mill composite machining means implementing several different processing techniques on a single machine tool. CNC turn-mill composite machining is widely applied and highly difficult; it is CNC turn-mill composite machining. A CNC turn-mill composite machining center is equivalent to the combination of a CNC lathe and a machining center.
At present, most CNC turn-mill composite machining is completed on turning centers, while ordinary turning centers merely replace the ordinary turret tool post of a CNC lathe with a turret tool post equipped with powered tools, and add a C-axis function to the spindle. Due to the limitations of the turret tool post's structure and external dimensions, the power head has low power and low rotational speed, and cannot accommodate larger tools. Such turning centers are mainly based on turning, with milling and drilling functions used only for auxiliary processing. Powered tool posts are expensive to manufacture, causing the cost of turning centers to remain high, with prices generally exceeding 800,000 yuan, which ordinary users cannot afford. Economical CNC turn-mill composite machines are mostly XZC-axis types, that is, a rotating C-axis is added to the chuck to achieve basic milling functions. Currently, there are many types of CNC turn-mill composite machining center equipment on the market, and major brands all offer such equipment; there are also many well-known software programs for CNC turn-mill composite machining on the market. Compared with conventional CNC machining processes, the outstanding advantages of CNC turn-mill composite machining are mainly manifested in the following aspects.
(1) Shortening the product manufacturing process chain and improving production efficiency. CNC turn-mill composite machining can complete all or most processing procedures in a single setup, thereby greatly shortening the product manufacturing process chain. This, on the one hand, reduces production auxiliary time caused by setup changes, and on the other hand, also reduces the manufacturing cycle and waiting time for tooling and fixtures, significantly improving production efficiency.
(2) Reducing the number of setups and improving machining accuracy. The reduction in the number of setups avoids the accumulation of errors caused by the conversion of positioning references. At the same time, most current CNC turn-mill composite machining equipment has online detection functions, which can achieve in-position detection and precision control of key data in the manufacturing process, thereby improving the machining accuracy of products.
(3) Reducing floor space and lowering production costs. Although the unit price of CNC turn-mill composite machining equipment is relatively high, due to the shortening of the manufacturing process chain and the reduction in equipment required for products, as well as the reduction in the number of tooling fixtures, workshop floor space, and equipment maintenance costs, it can reduce the overall investment in fixed assets and the costs of production operations and management.