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Weak coupling three horizontal moving parallel robot mechanism

A three-translation and weak-coupling technology, which is applied in the direction of manipulators, program-controlled manipulators, and manufacturing tools, can solve problems such as difficult to guarantee manufacturing accuracy, difficult kinematics positive solutions, and small working space, so as to achieve easy manufacturing accuracy and positive and negative kinematics. The effect of easy solution and low assembly requirements

Active Publication Date: 2014-09-03
溧阳常大技术转移中心有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, parallel robots also have limitations: (1) kinematics positive solution is difficult; (2) kinematic input and output are coupled, and control is difficult, and the inertial force is large in high-speed situations; (3) the working space is small; (4) manufacturing accuracy is difficult ensure

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Embodiment Construction

[0016] The embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings; it should be noted that the embodiments are illustrative, not restrictive, and cannot limit the protection scope of the present invention.

[0017] A weakly coupled three-translation parallel robot mechanism is composed of a static platform (1), a dynamic platform (8) and two generalized branch chains. It includes two angle drive hinges R2 and C17, and one linear drive pair C18.

[0018] The static platform (1) of the first generalized branch chain is connected to one end of the connecting rod two (2) and the connecting rod four (4) through the rotating pairs R1 and R2 respectively, and the other end of the connecting rod two (2) is rotated The pair R3 is connected with one end of the connecting rod three (3), and the other end of the connecting rod three (3) is connected with the connecting rod four (4) through the rotating pair R4, forming a parall...

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PUM

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Abstract

The invention discloses a weak coupling three horizontal moving parallel robot mechanism and relates to the field of mechanical devices and robot mechanisms. The weak coupling three horizontal moving parallel robot mechanism is composed of a movable platform (8), a fixed platform (1) and two generalized branch chains. The first generalized branch chain is composed of a parallelogram mechanism, a U-shaped rod (5), a connection rod (6) and a connection rod (7), wherein the parallelogram mechanism is composed of a side link (2), a connection rod (3) and a side link (4), and the connection rod (6) and the connection rod (7) are parallel. All the rod pieces are connected through rotation pairs. The second generalized branch chain is composed of a parallelogram mechanism, a connection rod (10) and a connection rod (9), wherein the parallelogram mechanism is composed of a side link (13), a side link (11) and a connection rod (12), the connection rod (10) and the connection rod (9) are parallel, the side link (11) and the side link (13) are respectively connected with the fixed platform (1) through cylinder pairs, and others are connected through rotation pairs. The weak coupling three horizontal moving parallel robot mechanism is simple and compact in structure, good in decoupling performance, easy to control and high in bearing capability.

Description

technical field [0001] The patent of the present invention relates to a weakly coupled three-translation parallel robot mechanism, which is a mechanism that can be used in the fields of precise positioning of numerical control machine tools, industrial welding, aerospace technology, etc., and belongs to the field of mechanical devices and transportation technology. Background technique [0002] Robots can also complete boring and repetitive work in dangerous and harsh environments, and the quality of work is reliable and stable. Parallel robots are widely used in CNC lathes, ships, aerospace, bionics, medicine and other fields. The parallel mechanism has the advantages of low inertia, strong load capacity, and high rigidity. However, parallel robots also have limitations: (1) kinematics positive solution is difficult; (2) kinematic input and output are coupled, and control is difficult, and the inertial force is large in high-speed situations; (3) the working space is small...

Claims

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Application Information

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IPC IPC(8): B25J9/00
Inventor 朱伟姜桂林
Owner 溧阳常大技术转移中心有限公司
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