What are the characteristics of double-head CNC lathe products? Before that, let bulama editor take you to learn about double-head CNC lathes! What is a double-head CNC lathe? Double-head CNC lathes are double-head lathes operated by modern CNC computer systems. Compared with ordinary double-head lathes, the processing is more refined and automated. There is a turning processing point at each end, and each is controlled by a CNC system. Although there are many benefits, in recent years, although my country’s CNC double-head lathe industry has achieved rapid growth and is currently facing good development opportunities, there are still five major limiting factors in terms of industrial development itself.
I. Lack of independent innovation capabilities
High-speed and high-precision motion control technology, dynamic comprehensive compensation technology, multi-axis linkage and composite processing technology, intelligent technology, high-precision direct drive technology, reliability technology, etc. need to be further broken through. For a long time, the basic and common technology research work of my country’s double-head CNC lathe manufacturing industry has been mainly stagnant in industry-specific scientific research institutes. Weak capabilities, lack of investment in technological innovation, poor ability to introduce and digest, low independent innovation capabilities, and lack of outstanding technical talents.
Although domestic double-head CNC lathe manufacturers have obtained some advanced CNC technologies through technology introduction, mergers and acquisitions at home and abroad, they lack research on basic common technologies and ignore the cultivation of independent development capabilities.
II. High-end CNC systems are controlled by others
90% of my country’s CNC systems need to be imported from abroad. Although some domestic CNC system manufacturers have basically mastered multi-axis linkage, RTCP (rotating tool center point) three-dimensional tool compensation and other technologies, and their developed high-end CNC systems can also meet the needs of some users, there is still a big gap in technical level compared with foreign products. The medium and high-end double-head CNC lathes that can be made in China are more in the assembly and manufacturing links, and generally have not mastered the core technology. CNC double-head lathe technology is currently mainly controlled by three major manufacturers, including Japan’s FANUC, Germany’s Siemens, and Japan’s Mitsubishi. Imported high-end CNC systems basically monopolize the Chinese domestic market.
III. The development of key functional components lags behind
The development of CNC double-head lathes mainly depends on the development of high-end CNC systems and key functional components. my country’s double-head CNC lathe functional components have a certain scale, and there are specific manufacturers for electric spindles, spindle units, CNC systems, etc., among which the manufacturing level of some products is close to the international advanced level. But overall, the development of functional components of my country’s CNC double-head lathes is slow, the variety is small, the industrialization level is low, and the comprehensive status of precision indicators and performance indicators is not strong enough, especially in CNC tools. The lag phenomenon is quite intense. Due to the small variety and low life of domestic tools, the efficiency of double-head CNC lathes is seriously affected.
IV. The rapid expansion of production capacity leads to unreasonable industrial structure
In the past two years, the enterprises in the double-head CNC lathe industry have invested heavily in factory expansion and equipment purchase, and the production capacity has expanded too fast. Data show that the cumulative fixed asset investment in the double-head CNC lathe industry has increased by 54.7% year-on-year, among which the equipment and tool purchase amount increased by 54.0% year-on-year.
V. The overall level of the main machine is far behind that of foreign countries
Although the proportion of domestic CNC double-head lathes is constantly increasing, the main machine has a large gap with the advanced level of foreign countries in terms of core R&D capabilities and product design level, precision, quality, performance, etc.
The gap is only temporary and relative. The function of its production is irreplaceable by other CNC machine tools. Bulama manufacturers summarize the production characteristics of double-head CNC machine tools as follows:
- The product features of double-head CNC lathes are arranged with a 45-degree forward tilt of the entire bed, which has good rigidity, convenient chip removal, and convenient maintenance and adjustment.
- Fully enclosed double-door structure, beautiful shape, smooth lines, clear external vision, and appropriate operating position.
- The saddle is equipped with high-precision rolling guide rails imported from Taiwan, with high repeated positioning accuracy and fast moving speed up to 24M (Z axis).
- The double-head CNC lathe uses hydraulic clamping, which is safe, stable and reliable.
- The double-head CNC lathe uses a row of cutters, which shortens the processing time of workpieces and stabilizes the precision. The tool holder can be installed according to customer requirements.
- The double-head CNC lathe uses a Taiwan dual-channel, dual-program control system, which can process processes of different scales and shapes at both ends at the same time, and can add milling, drilling, tapping and other projects according to customer needs.
- The main transmission system is equipped with a variable frequency drive system, and the double-head CNC lathe can also be equipped with a servo main drive system according to customer needs to achieve stepless speed regulation. Because the main force is directly transmitted to the spindle by the arc tooth belt, the spindle is noiseless and works very smoothly.
- An automatic chip conveyor can be selected for customers to choose.
Now with the expansion of CNC lathe manufacturers on lathe categories and models, the production of their CNC lathes will be adjusted according to the needs of merchants, including our bulama. For longer bars or tube parts with high coaxiality requirements at both ends, it is difficult to guarantee their quality by using ordinary lathes or CNC lathes. For this reason, the researchers have specially developed a double-head CNC lathe. Since it is modified based on the CNC lathe, its maximum processing shaft diameter can reach 350mm, and the maximum processing length can be designed according to the workpiece length requirements. The processing effect for workpieces with relatively large diameters and lengths is commendable.
