The high precision of servo electric cylinders is achieved by the following core factors:
1、 Closed-loop control system
The servo motor forms a closed-loop control with the controller through real-time feedback signals (such as position, speed, current, etc.), which can quickly correct motion deviations and achieve a positioning accuracy of ± 0.01mm.
Compared to the pneumatic drive method of cylinders, servo systems avoid the impact of interference factors such as gas source fluctuations and valve wear on accuracy.
2、 Precision mechanical structure
Adopting precision grinding ball screws, the overall position accuracy can reach over 0.02mm through optimized design, and the closed-loop control accuracy can reach micrometer level.
The servo motor body has high torque accuracy (fluctuation ≤ 1%) and low harmonic interference (harmonic component ≤ 5%), combined with the quenched rotor shaft and high-precision bearings, reducing mechanical transmission errors.
3、 High resolution encoder
Using a 23 bit photoelectric encoder, a single rotation is divided into over 8 million signal units, and electronic subdivision technology is used to achieve a repeat positioning accuracy of ± 5 arcseconds.
Perform concentricity correction and integration error compensation during encoder installation to further reduce position deviation.
4、 Sensors and Feedback Systems
Built in high-precision sensors (such as grating rulers and magnetic grating rulers), combined with advanced control algorithms to monitor load changes in real time and dynamically adjust output thrust of 56.
Support complex motion trajectory programming, capable of completing precise operations such as multi-point positioning and variable speed motion.
5、 Manufacturing process assurance
Adopting precision assembly processes such as segmented stator splicing and vertical stacking of magnetic steel to ensure the smooth operation of the motor.
The high-performance servo motor and screw mechanism adopt modular design to reduce cumulative assembly errors.
The synergistic effect of these technologies has enabled servo electric cylinders to achieve control accuracy far beyond traditional cylinders/hydraulic cylinders in fields such as automation equipment and precision instruments.
