Multi-degree-of-freedom motion platform capable of being greatly controlled in vertical direction and method

Abstract

The invention relates to the technical field of multi-degree-of-freedom motion platforms, in particular to a multi-degree-of-freedom motion platform capable of being greatly controlled in the vertical direction and a method, and the multi-degree-of-freedom motion platform comprises a six-degree-of-freedom motion platform used for multi-degree-of-freedom lifting and steering motion; the six-degree-of-freedom motion platform is used for supporting the six-degree-of-freedom motion platform, the three-degree-of-freedom motion base is used for achieving adjustment in a three-degree-of-freedom space and conducting auxiliary enhancement on the height and the angle of the six-degree-of-freedom motion platform, the bearing table is arranged between the six-degree-of-freedom motion platform and the three-degree-of-freedom motion base, and the top of the three-degree-of-freedom motion base supports the bearing table. A driving part of the six-degree-of-freedom motion platform is designed to be a transverse electric linear guide rail driven by double independent lead screws, and more space adjusting ranges can be provided in the vertical direction; the three-degree-of-freedom motion base is arranged below the six-degree-of-freedom motion platform for assistance, the deflection angle in the vertical direction is further expanded, and greatly controllable multi-degree-of-freedom simulation motion in the vertical direction is achieved.

Description

technical field [0001] The invention relates to the technical field of multi-degree-of-freedom motion platforms, in particular to a large-scale controllable multi-degree-of-freedom motion platform and method in the vertical direction. Background technique [0002] The structure of the multi-degree-of-freedom motion platform is mainly a three-degree-of-freedom platform and a six-degree-of-freedom platform. Through the cooperation of the upper and lower platforms and multiple electric cylinders (or air cylinders, hydraulic cylinders) set therein as linear drive units, the movement of the upper platform is realized. Multi-degree-of-freedom motion control. [0003] In the actual application process of the motion platform, the space adjustment of the motion platform is often limited by the use of the drive components and the movement stroke of the drive components. For example, hydraulic cylinders and electric drive cylinders are used as direct push arms. The overall length of t...

AI Technical Summary

Problems solved by technology

[0003] In the actual application process of the motion platform, the space adjustment of the motion platform is often limited by the use of the drive components and the movement stroke of the drive components. For example, hydraulic cylinders and electric drive cylinders are used as direct push arms. The overall length of the piston is limited, and the height adjustment is limited in vertical reversal

[0004] In order to improve the stroke and angle of simulation or simulation (to achieve large-scale movements such as horizontal translation, flipping, and yaw), usually electric cylinders with heavy loads and longer lengths are selected, resulting in a sharp increase in the space occupied by the equipment.

In special working conditions, when a large angle adjustment in the vertical direction is required, the multi-degree-of-freedom motion platform is often unable to achieve this action due to its own structural design. During the rotation process, it is only possible to avoid movement interference between the push arms Rotating within a certain range, it is impossible to achieve omnidirectional continuous rotation operation, which makes the existing multi-degree-of-freedom motion platform unsuitable for special working conditions

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