In the process of upgrading and transforming industrial robots, the technological breakthrough of servo motors plays an important role in promoting them.

From a domestic point of view, under the background of the heavy volume of the robot market, domestic parts and components have experienced strong growth. As one of the representative products of industrial automation, servo system not only has the advantages of less investment, quick effect, energy saving, etc., but also one of the important symbols reflecting the development of a country's industrial technology level. In the field of core parts and components, some domestic manufacturers have grabbed a considerable share of the industrial robot market supply from foreign leaders with their excellent technical level. What unique technological hard power do those suppliers have?

Leisure Intelligence

For the configuration of industrial robots, Leisai intelligent 400W and 750W servo drive motors are used in the market. If the robot has high-speed requirements, a 1000W servo driver can be configured. As a common three-axis manipulator, 400W AC servo can be used on the horizontal axis, the pulling axis, and the upper and lower axes with a 1:9 reducer. By the way, in the field of industrial robots, there are more and more 5-bit reducers.

The working cycle of the ordinary manipulator is 6-7s. For example, according to the configuration of the L5-750Z-NR motor ACM8008H2G-B0-D-SS, the following data can be obtained:

The maximum speed is 4000rpm, and the operation cycle is greatly shortened. Compared with the general similar products, the efficiency has obvious advantages. The L5 series servo 17-bit encoder is sufficient to ensure the positioning accuracy of the manipulator under normal mechanical structure conditions. When the action stops, the motor also has a vibration damping suppression function, which can further improve the positioning accuracy of the machine at high speed.

In addition, HSM series hybrid servo motor, the 110 base model torque can be as high as 20N m, with excellent high-speed performance, and built-in incremental photoelectric encoder to provide position feedback and speed feedback to overcome the problem of motor out-of-step.

Leisai intelligent servo bar products are very rich, and it is one of the few domestic companies with a full range of motion control production lines. In the wave of industrial automation, Leisai also set up a subdivision production line in the robot industry to open up the market, and there should be more reference cases and application directions soon.

Inovance Technology

Huichuan is not only an industrial robot, but also makes its own core components. Inovance servo motors now listed include low-power MS1 series, high-power ISMG series, ESMG series, and MEG20/26/36 series.

MS1 series servo motor is a new generation of high-performance low-power servo motor from Inovance. In this series of H1 series products, the torque covers 0.09-3.18N m, the maximum speed can reach 6000rpm, with strong power and excellent performance.

In this series, in order to achieve the absolute positioning accuracy of ±15 arc seconds, Inovance is equipped with a 23bit single/multi-turn absolute encoder. And has built-in torque ripple compensation function to achieve torque ripple <0.5%.

In the robotics industry, the ISMG series is more widely used. This product has two major features: fast positioning and impact on the movement. This series of power supply covers 7.5kW~80kW, and is also equipped with a 23-bit absolute encoder. In most industrial applications, the IP54 protection design and the structural design of the shock-resistant vibration encoder are all suitable.

At present, Inovance mainly operates SCARA and six-axis robots, and the automation of its components greatly reduces the cost of Inovance robots. For the supply of core components, reliable servo systems should have a place in the domestic robot body manufacturers.

Eston

Eston is one of the few domestic companies with a full robotics industry chain. If Huichuan Technology involves many and complex fields, then Estun is an industrial robot.

Now EMG, EMB, EMJ, EMJ, EM3A, EML five main general-purpose servo motors.

The EMJ series is mainly used in the field of industrial robots. It is suitable for 50W-1.0kW power supply, and the maximum speed can reach 4500r/min. Although there is no detailed parameter evaluation for this series, its peak torque can theoretically reach 300% of the torque. The wire-saving incremental encoder can be selected inside the motor, using 17-bit absolute encoder and 20-bit incremental encoder to achieve precise speed control and feedback.

The machine is selected according to the following scheme, using a 20-bit encoder, with fast running speed, high precision, and an efficiency of about 14 times/min, that is, a single cycle of about 5s. Compared with the Raise intelligent solution mentioned above, the difference is not big, and it is more efficient than most robots on the market.

Starting from the CNC system of the molding machine, it extends to the AC servo system, and then to the field of industrial robots, and gradually expands to the downstream integrated application field. Through self-research and mergers and acquisitions, the accumulation of servo technology has continued to accumulate, and the field of industrial robots has considerable advantages in the entire industry chain.

summary

As the core component of industrial robots, if the servo system cannot achieve independent innovation, it will not be able to truly get rid of the foreign-dominated situation. At present, there are still many domestic manufacturers on the road of independent research and development. It is only a matter of time before the core components of the robot must be completely localized.