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Precision CNC Machining
CNC Turn-mill
Introduction
Compound processing is one of the most popular processing techniques in the field of mechanical processing which 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 is turning and milling. The turning and milling complex machining centre is equivalent to the combination of a CNC lathe and a machining centre.Advantage
Compared with conventional CNC machining technology, the outstanding advantages of composite machining are mainly manifested in the following aspects.(1) Shorten the product manufacturing process chain and improve production efficiency. Turning and milling composite processing can realize all or most of the processing procedures in one card loading, thus significantly shortening the product manufacturing process chain. In this way, on the one hand, the production assistance time caused by the change of the installation card is reduced. At the same time, the manufacturing cycle and waiting time of the tooling fixture are reduced, and the production efficiency can be significantly improved.
(2) Reduce the number of clamping and improve the processing accuracy. The reduction in the name of card installations avoids the accumulation of errors caused by the conversion of the positioning reference. At the same time, most of the turning and milling composite processing equipment has the function of online detection, which can realize the in-situ detection and precision control of critical data in the manufacturing process, thereby improving the processing accuracy of the product.
(3) Reduce floor space and production costs. Although the unit price of the turning and milling complex processing equipment is relatively high, due to the shortening of the manufacturing process chain and the reduction of the equipment required for the product, as well as the number of tooling fixtures, workshop floor space and equipment maintenance costs, it can effectively reduce the overall fixed assets The value of the investment, production operation and management.
Features
1. The turning and milling complex machining centre uses a high-precision built-in spindle;2. Freely movable operation panel to improve work efficiency;
3. The model mainly produces large-scale production of various small parts and complex parts at high speed and diversified processing;
4. In particular, slender and complex processes can be processed and formed at one time, and an automatic feeding device can be configured to improve efficiency;
5. Material details: cutting, copper, iron, aluminium alloy, stainless steel, Teflon and other materials
The difference
The difference between turning and milling machine and machining centre is:1. The turning-milling sophisticated machining centre is a machine tool with B-axis linkage and C-axis linkage that can do turning and milling. It can be said that all or most of the processing of a part can be completed on the turning-milling composite machine tool, so it is also called Small production line. It can not only improve the accuracy of products and the efficiency of processing products but also significantly save the area of machine tools for enterprises. In the past, it was necessary to complete the processing of a part on several machine tools, and now only one machine can complete all the machining. This type of machine tool can also be divided into vertical milling lathe compound and horizontal milling lathe compound machine tools. This type of machine tool is already very common in developed countries such as Europe and Japan. China has just begun to start, and the development is very slow. This type of machine tool is still processed like the previous machine tool, which significantly wastes the turning and milling machine tool. The leading machine tool manufacturers are WFL, DMG, MAZAK, Baomei, Mori Seiki and so on.
2. For a five-axis machining centre, it can only do milling and not turning. Therefore, there are many limitations in processing. The turning-milling compound can cover the processing of the five-axis machining centre, but the five-axis can not do the machining of the turning-milling mixture.
Development status
Most of the turning and milling composite processing is completed on the turning centre, and the general turning centre just replaces the ordinary turret tool holder of the CNC lathe with a turret tool holder with a power tool, and the main shaft adds the C axis function. Due to the limitations of the turret tool holder structure and dimensions, the power of the powerhead is small, the rotation speed is not high, and large tools cannot be installed. Such turning centres are mainly turning, and the milling and drilling functions are only for some auxiliary processing. The cost of the power tool holder is high, which causes the cost of the turning centre to remain high. The domestic selling price is generally more than 100,000, and the imported price is more than 200,000, which cannot be afforded by ordinary users. Most of the economy turning and milling compounds are XZC axes, that is, a rotating C axis is added to the chuck to realize the essential milling function.There are many types of equipment for turning and milling sophisticated machining centres on the market, such as WFL, DMG, Dalian machine tools, Taiwan Taiyu Seiki, DOOSAN ( Doosan machine tool ), and such high-end equipment; the more well-known software for turning and milling compounds on the market are edgecam and UG NX and so on.
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