Luo Junjie, deputy director of the Equipment Industry Department of the Ministry of Industry and Information Technology, said recently that "the development of China's robot industry is undergoing a period of progress from quantity expansion to high-quality development. The future of robots, especially service robots, may present a trend of new materials. Applied to the field of robotics, cloud service technology accelerates the overall improvement of robot application level, and artificial intelligence will promote the enrichment of robot application scenarios."
Investment tends to be rational
According to public data, the global robot market reached $23.2 billion in 2017, and the Chinese market was about $6.28 billion in the same period. The average growth rate of the global market in 2012~2017 was about 17%, and the average growth rate of the Chinese market in the same period reached 28%.
China's industrial robots have become the world's largest application market for five consecutive years, accounting for about one-third of the global market share.
In 2017, domestic industrial robot companies also handed out eye-catching transcripts. For example, Eston's revenue increased by 59% year-on-year, net profit increased by 39% year-on-year; Topstar's revenue increased by 76.5%, and net profit increased by 78%; Huazhong CNC's revenue increased by 21%, and net profit increased by 146.8%.
Fu Sheng, chairman of Cheetah Mobile, said during the 5th China Robotics Summit, "Our company produces robotic arm industrial robots. The previous year, we purchased parts harmonic reducers from the market and bought them. Last year, we found that harmonic reducers were in short supply. It is difficult to buy. It is expected that the robot industry will usher in explosive growth in the future."
With the support of policies and the rapid injection of capital, robot companies are rapidly taking root throughout the country. The "China Robot Industry Development Research" (hereinafter referred to as "Research") jointly released by the Robot Lecture Hall shows that as of the end of last year, there were more than 6,500 robot-related enterprises nationwide, and there are currently more than 60 domestic robot industry parks.
It is worth noting that after a period of blind and disorderly development in the robotics and artificial intelligence markets, capital and entrepreneurs are gradually returning to rationality, and the market tends to develop steadily. According to Research, since 2017, the growth rate of registered registrations of robot companies has decreased by 15 percentage points compared to 2016.
"No core technology will soon be (in) drowning in the tide." Yao Lijun, chairman of Jiangfeng Electronics, reminded that “the increase in output of robots on the wind is undoubted. But this meal is not good. First, the lack of core technology, the entire core components are likely to rely on foreign imports; The formation of vicious competition, resulting in lower and lower gross profit margins."
Localization of core components
Indeed, the bottleneck problem of the core components of robots has always been a hurdle for the domestic robot industry. The technical barriers of the industry also make the current main market share of the robot market still the international “four big families†(Swiss ABB, Japan FANUC, Japan Yaskawa, Occupied by KUKA, Germany.
According to the latest research report of GF Securities, from the perspective of cost, the core and difficulty of robot technology are concentrated in the upstream parts market. The ratio of reducer, controller and servo motor to total cost is close to 70%, and the import cost of a reducer is about For the foreign price of 3 to 4 times, it is the main bottleneck restricting the development of domestic robots.
However, in recent days, many robot industry experts and practitioners have told reporters that the current situation of relying on foreign imports for robot core components has changed a lot.
Su Mingdong, director of the Jinggong Technology Office, said in an interview that many of the core technologies and components of the robots were imported, and now most of the core components of the company can be self-sufficient.
Zhu Shiqiang, dean of the Institute of Robotics at Zhejiang University and director of the Zhijiang Laboratory, believes that most of the components of domestic robots are becoming more and more mature, which is a basic trend. With China's research and development in core technologies and core components, it has also forced some international monopoly component suppliers to lower prices and thresholds.
The reporter noted that in recent days, the import substitution process for robotic domestic parts has accelerated. According to public information, in the field of RV reducers, China-German and Bronte signed a contract for the purchase and sale of no less than 30,000 RV reducers, and Shuanghuan signed a contract with EF for 10,000 sets of reducers.
Integrating AI to transform into high-end
In addition, the issue of "low-end high-end industries" in China's robots has also been repeatedly mentioned. In Zhu Shiqiang's view, although the space for robots can be imagined in the future, the problem is that robot products that meet market requirements are not available. To accompany robots, many robot products are still too low-end, so the technology development in robots. There is still a long way to go.
At the just-concluded 5th China Robotics Congress, the reporter saw that the industrial robots exhibited were mainly robotic arms, robots and AGVs (automatic guided transport vehicles). However, the reporter also noticed that most of the robot manufacturers in China had only produced low-end robots with 3-axis to 5-axis, and now many companies are able to produce high-end products with 6 axes.
Luo Jun, executive chairman of the International Robotics and Intelligent Equipment Industry Alliance, told reporters that "the robots and logistics robots of the factory can only be counted as automated machines. At most, they can only be regarded as robots 1.0. The real robots should be machines plus I use artificial intelligence and integrate information technology and Internet technology to be able to perceive, learn, and make decisions. I call it Robot 2.0."
Enterprises also feel the need for innovative technology from the changes in customer requirements. Su Mingdong told reporters that the requirements of customers for the company's products in these years are mainly around technological transformation, updating technology, including access to AI and Internet of Things. The robot industry is still in the basic development stage, and it is gradually maturing. The market is not saturated yet. What is needed now is technology precipitation.
Dr. Wen Zhiqing, deputy dean of Ningbo Intelligent Manufacturing Industry Research Institute, believes that as a company, in addition to further improving the technology, it is necessary to reduce the price of robots and further improve the cost performance of products.
With the rapid development of big data, cloud computing, artificial intelligence and other technologies, the contours of the robot 2.0 era have gradually become clear, and how to overcome technical problems and enter the high-end field of robots has become the key to the current industry development.
Daily maintenance of excavator hydraulic cylinders
The hydraulic cylinder of an excavator is one of the important hydraulic components responsible for driving and controlling mechanical movements. In order to ensure the normal use of hydraulic cylinders and extend their service life, daily maintenance is necessary.
1. Regularly clean the hydraulic cylinder: During use, the hydraulic cylinder will be attacked by various pollutants, such as dust, sediment, oil stains, etc. These pollutants can affect the working efficiency and lifespan of the hydraulic cylinder. Therefore, it is necessary to regularly clean the hydraulic cylinder.
2. Regular inspection of seals: The seals of hydraulic cylinders are key components to ensure their normal operation. If the seals are damaged or worn, it can lead to oil leakage or unstable operation of the hydraulic cylinder. Therefore, it is necessary to regularly inspect the sealing components of the hydraulic cylinder and replace them in a timely manner if there is any damage or wear.
3. Regular inspection of hydraulic oil: The operation of hydraulic cylinders requires the support of hydraulic oil, so the quality of hydraulic oil has an important impact on the working effect of hydraulic cylinders. Regularly check the quality of hydraulic oil, and replace it promptly if there is contamination or deterioration.
4. Regularly check the hydraulic pipeline: The hydraulic pipeline is the blood vessel of the hydraulic cylinder. If there is oil leakage or damage to the pipeline, it can cause the hydraulic cylinder to not work properly. Therefore, it is necessary to regularly inspect the hydraulic pipelines and promptly repair or replace them if there is any oil leakage or damage.
5. Regularly lubricate the hydraulic cylinder: The piston rod and piston ring of the hydraulic cylinder need to be lubricated to reduce wear and friction. Therefore, it is necessary to regularly apply lubricating oil to ensure the normal operation of the hydraulic cylinder.
In short, the daily maintenance of excavator hydraulic cylinders is very important, which can extend their service life and improve work efficiency. Regular cleaning of hydraulic cylinders, inspection of seals, hydraulic oil, hydraulic pipelines, and lubrication of hydraulic cylinders are required.
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