Publish Time: 2022-01-21 Origin: Site
Welding manipulator is an important basic component, refers to the robot arm drive, automatic control system, human-machine interaction technology system software, the characteristics of the stamping manipulator has an important hazard, with the practical, modular design of the component module. The key is divided into the following three parts: high-precision reducer, excellent performance AC and DC power AC servo motor and controller, and its excellent performance of intelligent robot control board. Let's learn more about it. We hope this article will be helpful to you.
This passage is going to talk about the following components of welding column and boom:
1) Reducer
2) AC servo motor and controller
3) Control board
The welding manipulator reducer is the core component of the stamping manipulator. In this stage, two types of reducers are strictly applied: harmonic current reducer and RV reducer. It is used at the base and arm connection of the stamping manipulator.
The harmonic drive mode was created and invented by the British scientist C. Walt Musser in the mid to late 1950s. The key to the harmonic current reducer is composed of three basic prefabricated components: a wave generator, a soft drive gear and a rigid drive gear. With the help of the wave generator, the soft drive gear generates controlled elastic deformation and engages with the stiffness drive gear to transmit the driving force of the fitness motion. The transmission ratio of the single-pole drive system reaches 70-1000, and the deformation of the flexible wheel ensures that the rotation does not produce backlash. Compared with the general reducer, the volume of harmonic current reducer can be reduced by 2/3 and the net weight gradually reduced by 1/2 under the same output torque. the flexible wheel is subjected to a large amount of alternating load, so it requires high fatigue resistance limit of its raw material, production processing, quenching and tempering, etc. The manufacturing process is complicated, and the characteristics of the flexible wheel are very important for the high-quality harmonic current reducer.
Welding manipulator in the AC servo motor and drive level, there is already a lot of mature technology at this stage, mainly some well-known European brands have production. This motor and drive components have good load capacity and dynamic response, and the controller is open and with system bus socket, but the price is relatively expensive. However, the dynamic response capability is weak, openness is weak, and most of them only have analog input and single pulse manipulation method. In recent years, China has conducted some basic research and industrialized development of high-power communication AC rare-earth permanent magnet synchronous motor and driver, such as many well-known universities jointly with cutting-edge enterprises for cooperative production, and there is already a certain amount of production, but its dynamicity, openness, and credibility still need a lot of specific new project application certification. We are still further research to improve.
Welding manipulator in the welding manipulator control board level, the key service platform of the current general multi-axis control board is divided into key motion control card and industrial control computer plus real-time system as the key PLC. welding manipulator in the motion control card level, the company has been developed and designed. The product is relatively complete, but the application on stamping robots is relatively small.