Snake-shaped arm

Abstract

The invention discloses a snake-shaped arm which comprises an arm body. The arm body is composed of a plurality of connection rods which are connected in series, and every two adjacent connection rods are movably connected through a cross shaft joint. The upper end surface of each connection rod except the top connection rod is provided with a pair of first shaft forks, and the first shaft forks are in pivoted connection with one set of pivot shafts of the corresponding cross shaft joint; and the lower end surface of each connection rod except the bottom connection rod is provided with a pair of second shaft forks, and the second shaft forks are in pivoted connection with the other set of pivot shafts of the corresponding cross shaft joint. The first shaft forks on the upper end surface and the second shaft forks on the lower end surface of the same connection rod form an angle of (90+alpha) degrees, wherein the alpha is an acute angle. Each connection rod is provided with a ring of first through holes which surround the shaft forks and make the upper end surface communicate with the lower end surface of the corresponding connection rod. The two sets of pivot shafts of each cross shaft joint are connected to a corresponding driving unit through four pulling ropes, wherein the four pulling ropes each penetrate through a first through hole in each connection rod below the corresponding four pulling rope in sequence. The rotating of the cross shaft joints is controlled through the pulling performed on the pulling ropes by the driving units, so that the multi-dimensional movement of the snake-shaped arm is controlled, and the highly flexible operating capacity is realized.

Description

technical field [0001] The invention relates to the technical field of automatic charging of electric vehicles, and more particularly relates to a snake-shaped mechanical arm used for technical equipment of automatic charging robots for electric vehicles. Background technique [0002] With the popularity of electric vehicles in the world and at home, and with the rapid development of the time-sharing rental business of electric vehicles as the background, the humanized management problems of time-sharing rental of electric vehicles have also emerged, especially the charging method of electric vehicles. [0003] At present, the traditional charging methods use charging stations or set up electric vehicle charging piles in different areas of the city. The charging process is completely dependent on manual operation and has a low degree of automation, especially for time-sharing leased electric vehicles. [0004] The realization of automatic charging and unmanned fully automati...

AI Technical Summary

Problems solved by technology

However, in the existing technology, the traditional industrial manipulator is limited by stiffness and size, its degree of freedom is limited, and its environmental adaptability is poor, so it is difficult to be competent for the automatic charging process of electric vehicles

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