Planar three-degree-of-freedom moving platform with large rotation angle

A motion platform and rotary plane technology, applied in the field of robotics, can solve problems such as limited motion space and difficulty in achieving height, and achieve the effect of large working space

Pending Publication Date: 2017-12-29
YANSHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of parallel platform composed of multiple motion branch chains is often high in height, with limited

Method used

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  • Planar three-degree-of-freedom moving platform with large rotation angle
  • Planar three-degree-of-freedom moving platform with large rotation angle
  • Planar three-degree-of-freedom moving platform with large rotation angle

Examples

Experimental program
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Example Embodiment

[0017] in figure 1 In the schematic diagram of the three-degree-of-freedom motion platform in the large-slewing plane shown, the support 1 is a spoke structure and is made of aluminum alloy. The inner ring and the outer ring are connected by four plate-like structures. The load-bearing module is arranged on the inner ring of the support, and the drive module Set on the outer ring of the bracket; the drive module includes a drive module A, a drive module B, a drive module C, an outer gear ring and a circular guide rail, the steel outer gear ring 2 is fixed on the outer ring of the bracket by bolts On the upper side, a circular guide rail 14 is provided on the inner side of the outer gear ring; the drive module A and the drive module B are arranged on the same side of the outer gear ring, and are evenly distributed on the outer gear ring with the drive module C;

[0018] Such as figure 2 As shown, the motor seat A12 in the drive module A is an arcuate plate structure and is made of...

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Abstract

The present invention relates to a large gyration planar three-degree-of-freedom motion platform, which consists of a drive module and a bearing module; the bearing module is mainly composed of bearings, guide rail seats, linear guide rails, sliders, bearing seats and a moving platform. The drive module is mainly composed of three drive modules, an outer ring gear and a circular guide rail. The drive module A and the drive module B are installed on the circular guide rail, and the drive module C is installed on the drive modules A and B. The drive module C passes through the wire The lever nut mechanism drives the movement of the platform, and the drive modules A and B drive the movement of the drive module C through gear meshing. By controlling the steering and rotation speed of the three drive modules, the movement and rotation of the moving platform can be realized, and the two shifts and one turn of the moving platform can be realized. Planar three degrees of freedom motion. The invention has the advantages of low height and large bearing capacity, and can realize the large-angle rotation of the moving platform around its own axis.

Description

technical field [0001] The invention belongs to the field of robots, in particular to a motion platform. Background technique [0002] In the field of parallel attitude adjustment, with the development of technology, the overall height of the attitude adjustment mechanism is required to be reduced as much as possible, and the working space is required to be as large as possible. Multiple independent motion branch chains, multiple motion branch chains are independently driven to jointly realize the attitude adjustment requirements of the moving platform. For example, most of the current three-degree-of-freedom attitude adjustment systems use 3-RRR mechanisms and 3-RPR mechanisms to achieve 2 degrees of freedom of movement and 1 rotation, so as to meet the requirements for attitude adjustment. For example, in 2017, the Chinese patent with publication number CN205889156U disclosed a three-degree-of-freedom planar flexible parallel platform device, including three parallel bran...

Claims

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Application Information

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IPC IPC(8): B25J9/00B25J9/12
CPCB25J9/003B25J9/102B25J9/109B25J9/12
Inventor 姚建涛李海利陈新博许允斗赵永生
Owner YANSHAN UNIV
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