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Domestic Industrial Robot Dilemma: Core Components Absent

The lack of core components is the dilemma and key to domestic industrial robots. It has caused China's industrial robots to carry a heavy burden from the birth.


In China, industrial robots have a large application market. As early as 2014, Wang Ruixiang, then president of the China Machinery Industry Federation, said that China has become the world's largest industrial robot market.


However, according to the market share of China's industrial robots in 2017, the current domestic robot market is still firmly controlled by Japan's Fanuc, Yaskawa, Germany's KUKA, and Sweden's abb "four major families", with only 32.8% of domestic robots. market share. Moreover, most of these competitions are concentrated in the low-end and mid-range industries, and domestic industrial robots in the high-end sector do not even have a market share of 5%. It can be seen that compared with international counterparts, domestic robot companies have a low market share in domestic and international markets, and there is still a large gap in technology. The status of robotics and industry in the whole country is not optimistic.

Why is the situation of domestic robots so embarrassing?


Many robot manufacturers responded that the main problem of domestic robots is that the core components can only be imported, the cost can not be reduced, and it is difficult to form mass production. Even if the robots are sold successfully, important components are also imported, only a few The ability of enterprises to achieve independent research and development of a certain type of components has led to the need to sell more expensive than foreign products, resulting in a vicious circle of the market.


The lack of core components is the dilemma and key to domestic industrial robots. It has caused China's industrial robots to carry a heavy burden from the birth.


In general, industrial robots have three main components, namely reducers, controllers and servo systems. Of the majority of robotics, these three account for more than half of the total cost of the robot. Luo Baihui, a robot industry research expert, once analyzed that the cost of a reducer, servo motor and servo drive is 35%, 14%, and 13%, respectively, in an ordinary domestic 50 kg industrial robot.


If you think of a robot as a person, the controller is equivalent to the spine and brain of the robot. A serial or parallel structure controller with a flexible programmable system to control the robot to complete tasks or assist humans in completing tasks. In comparison, the gap between domestic and foreign is the smallest, because the technical difficulty is not large, so some of the more mature robot companies in China can independently develop.


The reducer is more like the joint of the robot's hand, foot and even the whole body. It is the most basic mechanical component to help the whole body to turn around and call. The robot reducer is mainly divided into rv reducer and harmonic reducer. At present, 70% of the world's precision reducer market is occupied by Hamernaco and Nabtesco in Japan, especially in China. The quality reducer with good quality of foreign brands often costs 2~3 times in China to purchase. Fortunately, in the past two years, the domestic reducer has also been vigorously developed, and it is particularly competitive. For example, in 2017, the domestic demand for the reducer market was about 300,000 units, and the domestic reducer accounted for about 20% of the market. The demand for foreign reducers also dropped from nearly 85% in 2016 to below 80%. I believe that these two numbers will get closer in the near future.


Practitioners generally believe that the survival environment of the core components of domestic robots is the most difficult, and the biggest technical gap is the servo motor system. The servo motor is the execution unit of the robot and is the main factor affecting the working performance of the robot. The servo overload capability of Europe and America, led by Siemens and Rockwell, is strong, and the dynamic performance is good. The Japanese brands headed by Yaskawa Matsushita account for the small size and the price of the people. As for domestic, although some domestic manufacturers seem to It can also produce servo motors, but the reliability is not up to standard, the failure rate is too high, and few robot manufacturers dare to use them. In China's servo market, Japanese products with advanced technology and performance are close to 60% of the Chinese market with good price/performance ratio, followed by Europe, America and Taiwan, accounting for 20% and 10% respectively. The market share of servo motors, from 2015 to 2017, is less than 20%.

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