Rail transit power supply technology promising
A 3-Axis CNC Machining Center/Mill is used for creating various industrial parts. This is achieved by using a wide-range of tooling and cutters depending on the type of material being cut and the end product being manufactured. Vertical Machining Center,Vertical Cnc Machine,Cnc Vertical Machining Center,Vertical Turning Center Jiangsu Hoston Machine Tools Co., Ltd. , https://www.hostoncncs.com
The opening ceremony was hosted by Wang Zhihua, Deputy Secretary General of China Electrotechnical Society, and Pei Xiang, Vice Chairman and Secretary General of China Electrotechnical Society, made an opening speech. Wu Liping, secretary general of Beijing Institute of Electrical Technology, delivered a speech on behalf of the conference co-organizers. This conference invited Beijing Subway Operation Co., Ltd. former deputy chief engineer and vice minister of equipment Huang Xuhong presided over the meeting.
Pei Xiang Jing pointed out in his opening speech that the world is seeing a wave of technological innovations represented by information networks, intelligent manufacturing, new energy sources and new materials. Under the "Made in China 2025" strategy of making a strong nation, the rail transit equipment manufacturing industry in China is moving forward in the era of digitization, informationization and intelligence.
Therefore, China's electrical equipment industry should seize this major historical opportunity, the rapid changes in rail transit equipment technology, pay close attention to, explore, study the changes brought about by the changes, new needs and new problems, to strengthen the equipment manufacturing sector With the cooperation of various departments of rail transit, we use the technologies and products that are safe and reliable, advanced and mature, energy-saving and environment-friendly, and green and intelligent to provide escort for the development of China's rail transportation.
The conference focused on the theme of "focusing on the frontier of technology and focusing on the development of hot spots" and held discussions and exchanges on the four aspects of "development discussion", "energy storage technology", "power supply system" and "equipment technology". As an important part of building an efficient circulation system for large countries, the construction of rail transit in our country is still undergoing large-scale promotion. As of the first half of 2016, China's urban rail transit operation mileage reached 3,473.33 km. According to the approved construction plan, the planned rail transit mileage by the railways will reach 8500 km by 2020, nearly 5,000 km more than in 2015, with a compound annual growth rate exceeding 20%.
The rapid development of China's rail transit construction has directly led to the innovation and development of rail transit equipment technology. China is the largest rail transit equipment market in the world and a focal point of global rail transit innovation. A large number of advanced technologies and new equipment are applied to the rail transit power supply system, which effectively promotes the safe and efficient operation of the modern rail transit system.
This session attracted a large number of China's rail transit and electrical equipment industry in various departments, experts and representatives from all regions. They held full exchange and discussion with keynote speakers on the new changes, new demands and new problems encountered in the electrification of orbital transportation and discussed the technical innovation direction and application of new products in the rail transportation power supply system. Through this meeting Provide a deep cooperation platform for industry, academia and research to work together to promote the reliable and safe operation of rail transit power supply system in our country and the improvement of technological innovation level.
"Rail Transit Power System Technology Conference" is sponsored by China Electrotechnical Society for the rail transportation industry, power supply professional annual meeting, is China Electrotechnical Society to promote sustainable development of the industry to provide support services, one of the important elements. This session was undertaken by Beijing Electrotechnical Society Special Committee for Rail Traffic Power Equipment Management and other support from Shieldstone Magnetic Energy Technology Co., Ltd., Shanghai Xidell Electronics Co., Ltd. and Xuelong Traction Electric Co., Ltd. of Zhenjiang University . (Liu Xing)
A 3-axis CNC Mill works on three separate axes:
X-Axis: Moving longitudinally or [left-to-right"
Y-Axis: Moving laterally or [front-to-back"
Z-Axis: Moving Vertically or [up-and-down"
CNC Vertical Machining Centers can include an additional axis to do specific cutting applications.
Rotary Tables are common as a 4th Axis on mills. They can vary in size and weight capacities and can have a horizontal or vertical configuration. They are generally an add-on to a standard 3-axis mill. The mill will have to have a proper 4th axis interface (generally a 4th axis card, drive and CNC Control) to accept a 4th axis rotary table.
Trunnion Tables can also be an add-on to a vertical CNC Mill. A Trunnion table adds a 4th and 5th axis to a standard mill by incorporating an A-Axis (which rotates around the X-Axis) as well as a C-Axis (which rotates around the Z Axis).
A true 5-axis machine can allow for continuous 5-axis machining simultaneously. This increases both speed and accuracy when machining the part.
CNC Vertical Mills generally have a single spindle, automatic tool changer, work table and CNC Control.
The spindle on a CNC Machining Center can have a wide range of speeds depending on what material is being cut and the depth of cut that is required. Typical spindle speed ranges from 0 to 10,000 RPM. Higher speeds are used for lighter materials including graphite and aluminum among others. Higher speeds can reach 12,000 RPM up to 50,000 RPM and higher.
The Spindle is loaded with tool holders and cutters to achieve the proper material removal. There are many different styles of tool holders including BT and CAT – which have a conical shape as well as HSK, which uses flanges instead of a taper to lock the holder in place. BT and CAT Holders can come in various sizes including 30, 40 and 50 taper depending on the size of tool the cutter requires. HSK (Hollow taper ShanK) comes in a variety of types – A through F – and sizes from HSK-32 up to HSK-160. HSK is considered a better tool holder for high speed machining as there is more surface contact between the spindle and the holder, reducing vibration and keeping the tool from pulling back into the receiver when cutting at high speeds.
A CNC Vertical Machining Center offers different styles of automatic tool changers as well. The most common style is the umbrella-style. This is where the tool holders are loaded into the carousel vertically. The other style is a drum or side-mount style. The tools are loaded in horizontally in this type. This allows for greater part height in the work area and can help accommodate a rotary table, fixture or any additional work holding devices mounted to the table.