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Multi-freedom-degree hollow coordinative mechanical arm

A degree of freedom, robotic arm technology, applied in the field of robotics, can solve the problems of no redundant degrees of freedom, lack of flexibility, and lack of heat dissipation in the robotic arm, and achieve the effects of compact structure, reasonable space utilization, and simple maintenance.

Pending Publication Date: 2018-04-10
TIANJIN YANGTIAN TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that the weight is high, the timing belt needs to be tensioned, which makes the structure more complicated, there is a certain vacancy in the internal space, and the lack of heat dissipation
The entire robotic arm has no redundant degrees of freedom and lacks flexibility

Method used

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Embodiment Construction

[0024] The present invention will be described in detail below in conjunction with the accompanying drawings and specific installation and working methods.

[0025] As shown in the accompanying drawings, the multi-DOF hollow cooperative robot arm of the present invention includes seven joint modules with the same structure, and the seven joint modules are respectively the first joint module 22, the second joint module 23, the third joint module 25, The fourth joint module 26, the fifth joint module 28, the sixth joint module 29 and the seventh joint module 30, each joint module includes a housing 18, and an end cover 19 is installed on the top of the housing 18, preferably on the A sealing ring 2 is installed between the shell 18 and the end cover 19 described above.

[0026] A metal bracket 4 is fixed on the inner upper part of the housing, and the metal bracket can be fixedly connected with the housing by screws. The metal bracket 4 is respectively provided with a sleeve in...

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Abstract

The invention discloses a multi-freedom-degree hollow coordinative mechanical arm. The multi-freedom-degree hollow coordinative mechanical arm comprises seven modular joints, two connecting arms and abase. The rotation end of the first modular joint is fixedly connected with the base. The fixed end of the first modular joint is fixedly connected with the rotation end of the second modular joint.The fixed end of the second modular joint is fixedly connected with one end of the first connecting arm. The other end of the first connecting arm is fixedly connected with the rotation end of the third modular joint. The fixed end of the third modular joint and the rotation end of the fourth modular joint are fixedly connected. The fixed end of the fourth modular joint and one end of the second connecting arm are fixedly connected. The other end of the second connecting arm and the fixed end of the fifth modular joint are fixedly connected. The rotation end of the fifth modular joint and thefixed end of the sixth modular joint are fixedly connected. The rotation end of the sixth modular joint and the fixed end of the seventh modular joint are fixedly connected. By adoption of the multi-freedom-degree hollow coordinative mechanical arm, the load / dead-load ratio can be effectively increased, the structure is simple, and maintenance is convenient.

Description

technical field [0001] The invention relates to the technical field of robots, in particular to a multi-degree-of-freedom hollow series cooperative mechanical arm constructed of a joint module and a connecting arm. Background technique [0002] At present, collaborative robotic arms are gaining popularity in various industries. As people's requirements for the capabilities of manipulators and workplaces are getting higher and higher, the requirements for modularization and lightweight of collaborative manipulators are also gradually increasing. Existing collaborative robotic arms are often cumbersome, and the degree of human-machine collaboration is low, which greatly affects assembly and operation. However, after the miniaturization design, the load capacity of the manipulator is greatly reduced. How to improve the load / weight ratio of the lightweight cooperative manipulator and improve the compactness of the structure has become an urgent problem to be solved. The struct...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25J17/00B25J19/00B25J9/12
CPCB25J9/12B25J17/00B25J19/0004
Inventor 肖聚亮张秋隆洪鹰王国栋张智涛刘宏业段文斌
Owner TIANJIN YANGTIAN TECH CO LTD
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