Pneumatic flexible ball joint based on arc pneumatic cylinder

Abstract

A pneumatic flexible joint based on a curved pneumatic cylinder comprises at least there curved pneumatic flexible cylinders, a upper turntable, a lower fractionating tray, a spherical shell and a hemisphere shell, wherein the curved pneumatic flexible cylinder consists of a curved rubber tubing and a spring steel wire. The spring steel wire is tightly wound to the inner tube of the rubber tubing along the radial spiral of the curved rubber tubing, and the density of spring turns outside the curved rubber tubing is lower than the density spring turns inside the curved rubber tubing; the hemisphere shell can installed on the spherical shell by rotating, and the hemisphere shell is fixed and connected with the upper turntable; the spherical shell is fixed and connected with the lower fractionating tray; and at least three curved flexible pneumatic cylinders are provided between the lower fractionating tray and the upper turntable, and the three cylinders are distributed uniformly; the first cover and the second cover are provided to both ends of each curved flexible pneumatic cylinder respectively, and the covers is fixed and connected with the lower fractionating tray. The first cover is provided with through holes connecting to the outside and the second cover is fixed and connected with the upper turntable. The invention has the advantages of good rigidness, simple and reasonable structure, small scale and good flexibility.

Description

(1) Technical field [0001] The invention is a ball joint, which belongs to the pneumatic flexible ball joint, and is suitable for designing and manufacturing flexible manipulators and other occasions. (2) Background technology [0002] In today's world, most of the driving parts of motor-driven robots and hydraulic-driven robots are reciprocating or rotating. When they are used to make the joints of robots, it is usually necessary to have a set of mechanical devices to convert reciprocating or rotating motion into other motion modes required. Robot joints designed in this way may have the advantages of high precision and high output power; but these designs are often bulky, complex and expensive, and their flexibility is far behind that of human joints. [0003] The application prospects of dexterous robots have been generally recognized by people, and because of the above shortcomings of contemporary robot drive components, the research on dexterous robot drive components ...

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the disadvantages of poor rigidity, unreasonable structure, poor motion effect and difficult precise control of the existing robot ball joints, the present invention provides a robot with good rigidity, simple and reasonable structure, good motion effect, easy precise control, and easy to miniaturize Pneumatic flexible ball joint based on arc-shaped pneumatic cylinder

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