Talking about CIMT2015 high-speed processing machine tool products at home and abroad

At the 14th China International Machine Tool Show (CIMT2015), domestic and foreign machine tool and accessory products manufacturers have launched their own products based on their understanding of users and the market. This is not only the application result of advanced manufacturing technology in the machine tool industry. The exhibition is also a showcase of the exhibitors' style.

High-speed cutting technology has become a hot topic in recent years, and the efficiency brought about by high-speed cutting and the significant increase in the surface quality of the workpiece have reduced the total cost of workpiece processing by at least 40%. This conclusion has become the theoretical basis and driving force of high-speed cutting technology. The subsequent research is centered on how to improve the wear resistance of the tool, how to make the structure, spindle and drive control system of the machine tool meet the requirements of high-speed cutting technology.

As domestic users' understanding of high-speed machining continues to deepen, the demand for high-speed machine tools will increase, which will affect machine tool manufacturers' increased investment in the development and manufacture of high-speed machine tools. At present, the gap between the spindle and the drive control system of the high-speed machining machine at home and abroad is not very large, but the gap between the structure and the tool is still large. The former affects machining efficiency and the latter is a challenge to machine tool stability. Here are a few of the high-speed machine tools on display at this year's show.
First, the drill center
1. DMG MORI MILLTAP700 high-speed drilling and milling center (see Figure 1), compact body design ensures a wide processing area, achieving a knife-to-knife 0.9s tool change speed, spindle maximum speed Up to 24000r/min, three-axis rapid shifting of 60m/min, optional probe kit and direct measurement system package, significantly improve processing speed and efficiency.
2, Yamazaki Mazak VCP400L high-speed drilling and milling center (see Figure 2), the machine width is only 1280mm, the design of the rear chip and the design of the maintenance area without the machine, can minimize the space occupied by the machine, the knife is the knife 0.9s fast tool change, spindle speed 12000 r / min, three-axis rapid shift 60m / min, equipped with Mazak FZ [Fanuc 0i] system, added MAZAK unique convenient menu, to achieve good operability. 3, Haas DT-1 drilling and attack center (see Figure 3), can be equipped with wireless intuitive probe system, three-axis rapid shift 61m / min, the maximum spindle speed of 15000 r / min, 20 side-mounted tool magazine. Adopt HAAS system independently developed by Haas Company.
4. Baoji ZH7120G drilling center (see Figure 4), the maximum speed is 20000 r/min, the three-axis rapid shift is 48/48/60 m/min; the Z-axis rapid moving speed reaches 60m/min, which reduces the high-speed drilling attack. The idle time effectively reduces the processing efficiency while reducing costs. 5, Shenyang machine tool i5 M1 high-speed drilling and attack center (see Figure 5), acceleration 1G, three-axis rapid shift 48m / min, spindle speed up to 20000 r / min, is aimed at the development of the growing electronics industry, mainly for mobile phones, Processing of small metal parts such as casings, middle frames, and buttons for consumer electronic products such as tablets. The design concept is to take up the smallest space and improve the processing efficiency, precision, product surface roughness and so on.

Second, high speed machining center
1. Hyundai WIA I-CUT400T (see Figure 6), the three-axis acceleration reaches 1G, and the fast-moving is 56m/min, which significantly reduces the non-cutting time. The optional double-armed tool magazine has a tool-to-tool change time of 1.6. s, the chip change time of the chip is 1.89s, and the servo motor drive tool change system is selected, which greatly enhances the stability of the tool magazine; the maximum spindle speed can reach 15000 r/min, and the reverse rotation can pass 2 times backward. , thereby reducing processing time. 2, DMG MORI HSC70linear (see Figure 7), the maximum spindle speed of 40,000 r / min, three-axis rapid shift is 80m / min, the ultimate acceleration allows users to greatly reduce the non-cutting time, 4 The shaft is efficiently machined, and the positioning accuracy of the direct measurement system is increased to 8μ. 3, brother company S1000*1 high-speed machining center (see Figure 8), the tool change time reached 1.4s, while the maximum speed is 16000 r / min, three-axis rapid shift 50 / 50 / 56m / min.
4, Shenyang machine tool i5 M4 intelligent vertical machining center (see Figure 9), mainly used in automotive, motorcycle parts processing, cost-effective, good stability, 95.5Nm of large torque makes the processing strong and powerful. At the same time, the machine is equipped with intelligent error compensation function. The precision machining is extremely accurate. The three-axis rapid shift is 48m/min and the spindle speed is 10000 r/min. There are many similar high-speed machining centers at the exhibition, such as Toshiba Machine's UVM-450C, Italy's VIGEL's TW320V, Haitian Seiko's V-180, etc. Most of the domestic and foreign machine tools use bridge gantry structure, which can effectively improve the machine tool. Stability and seismic resistance. At the same time, some manufacturers have adopted mineral casting structures, which are characterized by being insensitive to heat, environmental protection, and low energy consumption.
An excellent high-speed machining machine should reflect a perfect machining plan. High feed rate requires high acceleration, dry cutting is used in high-speed machining, and processing safety is fully considered. CNC uses Ethernet communication, oil mist absorption filtration, dust removal, infrared workpiece probe and other equipment, which is necessary for high-speed machining of parts. Indispensable. Looking at the development of high-speed machine tools at home and abroad, it is all around these technical requirements.
Through this exhibition, we have seen that domestic high-speed processing machine tools have thrived, and some aspects are comparable to or even slightly surpassed by world-class products; but there are still some aspects in system development, machine tool stability, and product humanization design. The big gap, only continuous innovation can have more room for development.

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