Two-degree-of-freedom robot arm capable of telescoping and rotating individually
A robot arm, telescopic rotation technology, applied in the direction of claw arm, manipulator, program control manipulator, etc., can solve the problems of heavy robot and small load weight, achieve high transmission precision, compact mechanism, and meet the effect of precision requirements
Inactive Publication Date: 2017-12-15
TSINGHUA UNIV
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Problems solved by technology
At the same time, robots with a wide range of workspaces still have shortcomings such as heavy robots and small loads, and there is still a lot of room for improvement
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[0017] In order to make the purpose, technical solution and advantages of the present invention clearer, the implementation mode and working process of the present invention will be further described in detail below in conjunction with the accompanying drawings. The accompanying drawings in the following description are only some specific embodiments of the present invention.
[0018] figure 1 It is a three-dimensional structural view of an embodiment of a two-degree-of-freedom robot arm that can independently expand and rotate independently provided by the present invention, figure 2 It is a cross-sectional view of an embodiment. The two-degree-of-freedom robot arm of the present invention includes a housing 3 , a rotating device 13 and a telescoping device 5 . The rotating device 13 includes a second motor 2, an input gear 21 and a second speed reducer 11; the second speed reducer 11 is fixedly installed in the housing 3 and connected to the second motor 2 through the inpu...
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The invention provides a two-degree-of-freedom robot arm capable of telescoping and rotating individually. The two-degree-of-freedom robot arm capable of telescoping and rotating individually comprises a shell, a rotary device and a telescopic device. According to the technical scheme of the invention, the robot arm has two degrees of freedom which can be controlled individually, wherein one degree of freedom is a rotary degree of freedom, and the other degree of freedom is a translation degree of freedom. The main effect of the rotary degree of freedom of the robot arm is to adjust the posture of the tail end of a robot, so that the robot has flexible posture adaptive capacity; and the translation degree of freedom of the robot arm ensures that the arm length of the robot changes according to the working space requirement so as to coordinate with the movement of other robot arms to reach the required space position, thereby realizing the movement adaptability of the robot to the greatest extent. Meanwhile, the robot arm provided by the invention has a compact mechanism, short transmission chains and light dead load and can meet the lightweight design requirements on the robot; in addition, an overconstrained telescopic mechanism adopted by the invention has large rigidity and high transmission accuracy and can meet the accuracy requirements on the robot movement.
Description
technical field [0001] The present invention relates to industrial robots; more particularly, the present invention relates to robotic arms in industrial robots. Background technique [0002] Compared with manual work, robot work is more stable and reliable, and can work in a long-term assembly line, which can not only improve production efficiency but also reduce costs. Robots are increasingly replacing labor in traditional labor-intensive fields such as automobiles, handling, welding, and spraying, which greatly reduces the labor intensity of workers and improves the working environment. In the existing industrial robot technology, the arm length of the robot is generally fixed, and the working space it can reach is also uniquely determined by the arm length and joints of the robot. When the size of the parts to be processed changes greatly, the factory will generally arrange robots of different sizes to meet the processing requirements, which increases the investment cos...
Claims
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Login to View More IPC IPC(8): B25J18/04B25J9/12B25J9/10
CPCB25J9/102B25J9/12B25J18/025B25J18/04
Inventor 赵景山罗宏图国汝君吴荣宗
Owner TSINGHUA UNIV