What does China use to control the five axes?
What does China use to control the five axes?
The machine tool industry is a technology-intensive industry, the source industry of the manufacturing industry, and the importance of its status does not require much effort.
01. China's five-axis machine tool?
GPS is a receiving module. This type of machine is equipped with an electronic gyroscope. When the machine moves, the angle changes. When the electronic gyroscope receives the angle change signal, if the preset parameter value is exceeded, the CNC system is triggered to lock the machine.
02, China five-axis linkage CNC?
The first type uses a general-purpose CPU, and has the Loongson 3B of the Institute of Computing Technology of the Chinese Academy of Sciences. This chip has been used in Beidou satellites, and Shenwei and Shanghai Zhaoxin's autonomous x86 processors from Jiangnan Computing Institute;
The second category uses embedded ARM, which is the mainstream development direction of the main chip of the CNC system. There are Mars and Feiteng 1500 of the National Defense Science and Technology University, and the famous Tianhe 2A supercomputer (the fifth consecutive session of the world super-calculation leaderboard performance champion). The chip adopts Feiteng 1500, and Huawei HiSilicon 920 is applied to high-end mobile phones. Many manufacturers such as Spreadtrum, Ruixinwei, Quanzhi and Actions have made their mark in the field of ARM, showing a thriving trend;
The third type uses motion control chips. There are SM5000 in Shenzhen Smaidi and AFDX05 in Shanghai Yunshan.
The highly flexible and efficient five-axis CNC machine tool has not been popularized. The main reason is that the pricing power of the five-axis machine equipped with foreign systems is controlled by foreign companies, and the price of the whole machine remains high.
The popularization of high-end machine tools needs to break through the price ceiling set by foreigners. It can be boldly predicted that if the price of the 850 five-axis vertical machining center can be lower than the critical price of 500,000, it can be quickly popularized and can quickly build up the Chinese manufacturing industry. The competitive advantage, can achieve breakthrough tasks, in addition to domestically produced machine tools equipped with domestic five-axis system, there is no choice.
This is a huge business opportunity for the Chinese machine tool industry, which is very similar to the eve of the three-axis domestic 850 plus the breakthrough of the 300,000 mark.
03. Foreign machine tools are much better than Chinese machine tools, really?
Equally positioned machine tools, foreigners and China are at the same level.
04, foreign machine tools rarely fail, really?
The low failure rate of foreigners is directly related to the use of treatment and maintenance.
The failure rate of a machine tool is generally measured by MTBF (mean time between failures). This indicator is an after-the-fact statistical indicator and there is no way to predict it.
Chinese machine tools are generally referred to as core equipment by users, and are only used for precision machining processes. They also bear the facial responsibilities of the company. The daily enjoyment is like this: let him live at a constant temperature to ensure that the machine tool is affected by the temperature rise and heat deformation, and the surrounding digging With the anti-vibration ditch to prevent the vibration waves from coming into other equipment, the operator is the best control master in the enterprise, equipped with the balancing fixtures and tools, the best lubricating oil and cutting fluid, and the optimal level. Maintenance level.
05. The cast iron, steel and heat treatment technology of foreign machine tools is much ahead of China. Really?
These three technical foreigners in the machine tool industry are not leading, and they are leading the production control.
The materials used in the machine body are divided into structural parts and moving parts. They are mainly subjected to impact and friction at low temperatures, and are made of ordinary metal materials, which are far from the technical content of materials used in aeroengines.
HT250 grey cast iron, polymer concrete and metal inserts are also commonly used for structural parts. The commonly used GC275 mehana cast iron in foreign countries is a gray cast iron with inoculant added, a concept of commercial speculation. Among the moving parts of the machine tool, the main shaft material is usually 45, 40Cr, 20CrMnTi and other steel materials.
For some precision machine tools, the castings will be subjected to stress relief annealing or vibration aging after machining. The hard track of the machine tool and the bearing file of the main shaft are generally super-audio surface hardening process.
06. The assembly technology of foreigners is much higher than that of China. Really?
The assembly technology of foreigners is not higher than that of the Chinese, but the production control is leading.
Take the assembly of the linear guide, which surface to position, which screw to install first, which screw to install, how much lubricant is dripped in the screw hole, how hard to use when screwing the screw, the top foreign companies have detailed operating standards, these The standards are designed by scientific calculations, and employees will be carefully implemented according to this standard.
Benefit production, can effectively help Chinese machine tools to improve quality.
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