With the advent of the era of Industry 4.0, the global manufacturing industry has undergone major changes, and the transformation and upgrading of traditional manufacturing to intelligent manufacturing is accelerating. Industrial robots are playing an important role. Harmonic reducer, as the core part of the robot to achieve the motion function, is an important and irreplaceable part of the light industrial robot and mechanical arm joint, and the precision and performance of harmonic reducer is also the main index to measure the precision and performance of the robot.

There are two kinds of reducer commonly used by industrial robots, one is RV reducer, the other is harmonic reducer.

In the joint robot, due to the RV reducer has higher stiffness and rotary accuracy, the RV reducer is generally placed in the frame, arm, shoulder and other heavy load position, and the harmonic reducer is placed in the forearm, wrist or hand.

Once only high-end research institutions can do harmonic reducer, are now being touted as an excessive capital products of the street, but the essence of harmonic gear reducer is still only a few people can grasp, nobody master as long as the core parts of robot technology, the quality of the harmonic requirements will not change, no matter how many people do, how low the price again, will eventually sweep, This market first or look at the quality, can survive to the last must be because of the quality of the market recognition.

Now to do reducer is to do precision, for high-precision robot reducer, Japan has the advantage, the gap between Domestic and Nissan is mainly reflected in the first is the stability of mass manufacturing production, the second is applicable to the application of different occasions, in the field of high-end reducer, Materials, heat treatment, design, bearing, sealing, processing technology, gear, assembly, parts and finished product testing, all need the support of high-end technology. At present, 75% of the precision reducer in the robot industry is monopolized by Japan's Nabtesco and HarmonicDrive.