A review of CIMT2015 CNC vertical lathe exhibits: a brief introduction of CNC vertical car exhibits

The 14th China International Machine Tool Show (CIMT2015) was held in Beijing on April 20-25, 2015. This year's exhibition took the theme of “New Normal and New Development” and reflected the characteristics of China's machine tool industry at this stage. The manufacturers that exhibited the vertical products mainly include: Shenyang Machine Tool, Beiyi Machine Tool, Qizhong CNC, Zhongchuan Heavy Machinery, Rifa Seiki, Taiwan Yushine, Taiwan (WELE), Japan Ou'an (OM), Korea Work Machinery (HANKOOK), Dalian Yimei, Yiyi Heavy Machinery, Giant Heavy Industry, Dalian New Land.

I. Brief introduction of CNC vertical car exhibits Shenyang Machine Tool exhibited the VertiTurn 250200DWMY vertical turning and milling machining center, which was jointly developed with the German company Heath and has an international leading level. The maximum cutting diameter is Φ2500, the maximum cutting height is 2000mm, the maximum torque of the table is 54.1kN•m, the maximum speed of the tool holder milling spindle is 3500r/min, the maximum torque of the milling spindle is 1200N•m, and the X/Z axis is fast moving speed 20m/min. The stroke is -1250/2700mm, and the Z-axis stroke is 1400mm. The machine tool is a moving arrangement of the gantry moving beam type worktable. It has the characteristics of high speed and high torque. It is suitable for high efficiency and high precision turning and milling combined machining in aerospace and other mechanical processing industries. The beam lifting is driven by a double servo motor + ball screw. The two columns are respectively equipped with a grating ruler to realize the closed loop detection of the beam lifting. The lower part of the beam between the two columns is equipped with an anti-collision bar to prevent the workpiece from being hoisted and damaged by the beam shield. The workbench moves with a line rail. The right end of the machine beam is suspended with a 6-station accessory library. The ground has a fan-shaped multi-layer tool magazine. According to the machine tool instructions, the robot can automatically change the Accessories and automatically change the tool.
Beiyi Machine Tool exhibited the BVTME1500 CNC vertical car, designed by its wholly-owned subsidiary WALDRICH COBURG, featuring high precision, high efficiency and high stability. The table has a diameter of Φ1500mm, a maximum machining diameter of Φ2000mm, a maximum machining height of 1750mm, and a maximum load-bearing table of 10t. The workbench adopts INA cross-roller bearing to improve the super-axial axial load-bearing capacity. The table rotation uses two sets of SIEMENS spindle motor + German ZF gearbox to drive through the bevel gear, ensuring high-speed turning function and low-speed milling fine positioning function. The tool holder milling spindle adopts SIEMENS high-speed motor and German ZF gearbox with a maximum speed of 4000r/min. The tool magazine is a floor-mounted double-layer rotary disc structure. The upper layer is the accessory head library, and the lower layer is the milling cutter library. The servo motor + pinion drive large gear ring drives the tool magazine to rotate. The X\Z\W feed axis uses SIEMENS servo motor with German Alpha planetary reducer to ensure high-speed feed, high precision and high stability. The SINUMERIK 840DSL CNC system is used.
For the first time, Qizhong CNC exhibited the SVT160×10/8P-MC single-column vertical turning machining center with a maximum turning diameter of Φ1600mm, a maximum workpiece height of 1000mm, a maximum load-bearing table of 8t, a table diameter of 1400mm, and a table speed range (two gears). Promise) 3.15~400r/min, the maximum cutting torque of the table is 12.5kN•m. The maximum cutting force of the tool holder is 20kN, the cross-section size of the tool holder ram is 220×220mm, the horizontal X-axis travel is -50~1000mm, the vertical Z-axis travel is 900mm, the tool holder has a cross section of 32×32mm, and the tool holder moves quickly. X and Z axis 10m /min. The beam stroke is 600mm, the beam lifting speed is 410mm/min, and the numerical control system Siemens 828D. It is suitable for high-precision and high-efficiency turning of large-scale disk parts in aerospace, power generation, automotive, bearing, mold manufacturing and other industries. Zhongzhong Heavy Machinery exhibited the SVT16 CNC single-column vertical turning machining center with a working table diameter of Φ1600mm, a maximum turning diameter of Φ1800mm, a maximum machining diameter of Φ1600mm, a maximum load-bearing table of 8t, and a table speed of 3.2~320r/min. The machine tool is a symmetrical structure with the center of the workbench as the symmetry. The column is a thermal symmetrical structure. The overall structure improves the vibration resistance. The column is located on the base of the workbench. The gearbox is driven by the AC variable frequency motor, stepless speed regulation, and the machine is three. files. The workbench adopts the spindle fixed type short spindle structure, and a set of high-precision crossed roller bearings are mounted on the main shaft. The structure is compact, and can bear radial load, axial load and overturning moment at the same time, and the elastic deformation is small when subjected to heavy load. Improve the rotation accuracy and load carrying capacity of the workbench. The beam is in the form of a fixed beam. The horizontal feed of the tool holder and the vertical movement of the ram are all realized by the SIEMENS 1FT6 AC servo motor directly driving the ball screw. The transmission efficiency is high, the transmission error is small, and the transmission precision is high. Nippon Seiki exhibited the RNCK5316 CNC vertical car, turning diameter Φ1600mm, table diameter Φ1600mm, maximum machining height 1000mm, load 12t, maximum cutting force 4t; workbench rotation using crossed roller bearings, workbench main drive adopts third gear Gearbox, speed 10~650r/min, main motor power 60kW, table maximum torque 30kN•m; X-axis stroke -100~1500mm, Z-axis stroke 800mm, beam lifting stroke 600mm, double-head screw drive on both sides The worm-worm reducer realizes the synchronization of the beam lifting. The X-axis guide rail adopts a rolling composite guide rail, which combines the advantages of the rigidity and damping of the sliding guide rail and the high precision of the rail rail, so that the machine tool maintains high precision and durability for a long time, and the X, Z-axis positioning accuracy is 0.01 mm/m, and the repeat positioning accuracy is repeated. 0.005mm/m, the table end jumps 0.012mm, and the table diameter jumps 0.012mm. X, Z axis fast moving speed of 12m / min. Yu Shine of Taiwan exhibited the VLR-1000 ATC+C vertical car. The maximum turning diameter is Φ1200mm, the maximum cutting diameter is Φ950mm, the maximum cutting height is 800mm, the spindle power is 37/45kW, and it is equipped with a tool magazine and an automatic tool change system. Taiwan's WELE exhibited the VTM16 milling and lathe composite vertical car, which won the 2011 Taiwan R&D Competition Special Award. Workbench diameter Φ1600mm, maximum machining diameter Φ2000mm, ram section 226×226mm, milling spindle speed 1600r/min, milling spindle torque 304N•m, X-axis rapid shift 12m/min, Z-axis rapid shift 8m/min, positioning accuracy ± 0.007/500mm, repeat positioning accuracy 0.003mm, the whole machine weight 20t. Japan Ou'an (OM) exhibited the Neoα-16EX vertical car with a table diameter of Φ1600mm, a maximum turning diameter of Φ1800mm, a maximum cutting diameter of Φ1800mm, a maximum machining height of 1500mm, a maximum workpiece weight of 8t, a maximum cutting force of 2.5t and a maximum ram. The stroke is 1250mm, the ram section size is 240×240mm, the ATC magazine capacity is 24, the table rotation speed is 1~300r/min, and the main motor power is 30kW (can be increased to 45kW). Optional functions include: automatic tool setting, automatic workpiece measurement compensation device, X-axis scale, increased tool holder, transformer, special protection system, central water cooling system. HANKOOK exhibited the HANTURN V16M milling and turning machining center with a table diameter of Φ1600mm, a maximum turning diameter of Φ2000mm, a maximum turning height of 1600mm, a table rotation speed of 2~400r/min, and a table maximum torque of 20.9kN•m. The workbench has a load capacity of 8t, a beam lifting stroke of 1000mm, and a fully automatic tool change system (18). The bed, the column, the beam and the sliding seat are all castings, and the guide rail is a rectangular guide rail, which is subjected to high-frequency quenching and precision grinding. The ram is made of ductile iron, all-inclusive structure, section 220×220mm, maximum cutting force 25kN. The sliding joint surface of the guide rail is plastic-coated and artificially scraped. All important areas are fully automatic lubrication system. Some emerging machine tool companies also exhibited vertical products. Dalian Yimei exhibited the CXK160 milling and lathe composite vertical vehicle, which uses ultra-high resolution double-reading circular grating technology to make the C-axis positioning accuracy of the table reach ±3′′. The billion-weight machine exhibited the CK5231 double-column vertical car, Giant Heavy Industry exhibited the CK5225 double-column vertical car, and Dalian New Land also exhibited its vertical car products.
(Author: Wuhan Heavy Duty Machine Tool Group Co., Ltd. Zhao Ming)
To be continued. . .

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