According to the arrangements made by the Ministry of Industry and Information Technology 04, from November 25 to November 26, 2017, Qizhong CNC Equipment Co., Ltd. took the lead in carrying out the project of "CNC Vertical Column Milling Lathe", which passed the acceptance at the user site.
This subject is undertaken by Qi Heavy CNC Equipment Co., Ltd. The participating units are Tsinghua University and Harbin Institute of Technology Project carried out C-axis structure with super-heavy and super-large table with independent high-precision indexing function, table hydrostatic guideway technology, closed-loop feedback Technology, overweight large-span high-precision gantry synchronization control technology, stiffness assurance technology, large-scale high-precision beam processing technology research, and related tests, put forward to improve the reliability of this type of machine and the accuracy of the specific methods The main technical parameters of the machine are as follows: The maximum processing diameter is Φ25000mm, the maximum processing height is 6000mm, the maximum work piece weight is 550t, the working table diameter is Φ10000mm, the worktable radial runout is 0.02mm, the cylindricity is 0.02 / 300mm, C axis indexing accuracy is ± 5 " , Its reliability and accuracy and other technical indicators have reached the international advanced level.
The machine has been put into use in Chongqing Hydraulic Turbine Factory Co., Ltd. It is mainly used for the machining of the parts of the large-sized turbine runner and the lower frame center body. The loading of the workpiece can complete the processes of car, milling, drilling, boring and tapping Machining.The machine tool reliability and processing efficiency, to meet the user needs of large parts machining, brought significant economic benefits, and has become the company oversized, ultra-heavy parts precision machining of key equipment.
The machine is currently the world's largest processing diameter double-column vertical lathe, will be widely used in deep-sea drilling platforms, large aircraft, heavy marine diesel engines, one million kilowatts of nuclear power equipment, thermal power equipment and large-scale hydropower equipment, large-scale petrochemical equipment The processing of large-scale workpieces is an important equipment that affects national economy, people's livelihood and national security. It is of great strategic significance both for improving the overall level of China's equipment manufacturing industry and for promoting the development of China's large-scale ships and aircraft manufacturing industries.
Through the implementation of this project, we set up the production base of super-heavy type machine tools and equipment in Qiqihar NC Equipment Co., Ltd., absorbed a group of senior technical personnel, acquired advanced workstations, simulation software and laboratory equipment, and possessed the necessary hardware and software environment Support conditions and CNC vertical column mobile vertical lathe research and development capabilities and ability to cultivate high-end talent, design and technology in the application of basic technologies, common technologies, key core technology issues in-depth study for the development of large-scale equipment to provide the support conditions .
R & D and manufacturing capabilities formed during the implementation of the project have become part of the construction of "major equipment and national defense equipment support industrialization base." We have formed a platform for manufacturing and testing oversized heavy duty machine tool parts, an overweight gantry synchronous control test platform, C-axis control compensation test platform, a large test platform for the key combination of large parts and other pilot platform, to improve large-scale enterprise welding, processing and related products research and development and manufacturing capabilities.
The successful development of this product has broken the monopoly and blockade of foreign technology in high-end and heavy-duty CNC equipment. The key technologies and processing technologies have been applied to other industries such as CNC vertical lathe, CNC heavy horizontal lathe, CNC deep hole boring and boring machine And other heavy machine tools, the development of China's machine tool industry has played a positive role.