Anti-torsion parallel dual-drive motion decoupling servo platform

Abstract

The invention discloses an anti-torsion parallel double-drive motion decoupling servo platform, which comprises a base, a lower layer linear motor set, an upper layer linear motor set, a decoupling assembly, a supporting assembly, a connecting assembly and a servo motion platform. According to the anti-torsion parallel double-drive motion decoupling servo platform, an anti-torsion parallel double-drive structure is adopted, platform decoupling is realized through two layers of guide rails which are distributed in a staggered mode under the platform, torsion of the platform is suppressed by parallel supporting guide rails which are arranged at the outer side of the platform, and a first motion assembly and a second motion assembly in the horizontal direction can be interchanged, thereby being convenient for processing and maintenance. In addition, the levelness of the motion platform in motion is ensured more easily when the anti-torsion parallel double-drive motion decoupling servo platform is at work, and a driving force is enabled to pass by a motion quality center by adopting the double-drive design, thereby being conducive to realizing high-speed and high-precision control. Execution results of input of electric signals of the driving force and the motion of the motion platform are more consistent in each motion direction, thereby being conducive to controlling the locus contour precision of planar motion.

Description

technical field [0001] The invention relates to the technical field of planar drive equipment manufacturing, in particular to an anti-torsion parallel double-drive motion decoupling servo platform. Background technique [0002] At present, the widely used two-axis planar motion platform mostly adopts the transmission mode of rotating motor plus ball screw. In this case, the rotating motor converts the rotating motion into linear motion through the screw, and there is a transmission link, so that there is Non-linear links such as gaps, and the mass of the moving part is large, which limits the performance indicators such as the movement speed, acceleration and control accuracy of the platform. Therefore, the development of high-speed and high-precision motion systems with new driving methods and mechanisms (low friction, high acceleration, and motion decoupling mechanisms) has become an important research content in the fields of laser processing and precision photoelectric d...

AI Technical Summary

Problems solved by technology

[0004] Due to the arrangement of the platform and the decoupling mechanism and the limitation of the assembly clearance of the decoupling mechanism of the existing parallel motion platform, when the platform moves in a single direction, an additional moment will be generated in the horizontal direction to cause the platform to rotate, thus affecting the motion accuracy

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