Waterproof sealing device of robot and mechanical arm with same

Abstract

The invention discloses a waterproof sealing device of a robot and a mechanical arm with the same. According to the waterproof sealing device, a rotating shaft is arranged inside a robot wrist, and the left end of the rotating shaft is connected with the right end face of a flange; the right end of an unthreaded shaft is connected with the left end face of the flange; an oil-free bushing is arranged on the unthreaded shaft in a sleeving mode; a ferrule comprises a first cylinder structure and a second cylinder structure; the right end of the first cylinder structure is connected with the left end of the second cylinder structure; a plurality of screws fix the second cylinder structure onto the robot wrist; the first cylinder structure is arranged outside the oil-free bushing in a sleeving mode, and an annular check ring is arranged inside the first cylinder structure; a first annular groove is formed in the outer side face of the right end of the first cylinder structure; a second annular groove is formed in the outer side face of the left end of a first sleeve; a nut is arranged on the first cylinder structure in a sleeving mode; the opening end of watertight clothing is arranged in the first annular groove; and the right end of a paw is fixed to the left end face of a circular plate. According to the waterproof sealing device of the robot and the mechanical arm with the same, an oil seal is installed between the unthreaded shaft and the ferrule, and accordingly liquid can be prevented from permeating in via a gap between the unthreaded shaft and the ferrule.

Description

technical field [0001] The invention relates to the technical field of robot waterproofing, in particular to the technical field of a robot waterproof sealing device. Background technique [0002] The present invention designs a waterproof sealing device used in conjunction with waterproof clothing. The device is installed on the robot flange, and then the waterproof clothing is placed on the robot. The waterproof sealing device includes two parts, one part rotates with the robot flange , the other part does not rotate, and the end of the waterproof clothing is pressed on the non-rotating part with a nut, so that the rotation of the robot flange of the robot will not drive the waterproof clothing. The transition of the wrist part is gentle, so that the allowable rotation range of the robot can be increased, the wear speed of the waterproof clothing can be delayed, the water infiltration into the waterproof clothing can be greatly reduced, and the aesthetics of the waterproof...

AI Technical Summary

Problems solved by technology

[0005] If the waterproof clothing is directly put on the robot, and the end is held tightly on the robot flange or additional shaft by hoops or other methods, that is, the waterproof clothing follows the 6-axis rotation of the robot. When the 5-axis and 6-axis movement, the waterproof clothing will reverse seriously. , not only is not beautiful, but also greatly reduces the service life. In addition, there will still be gaps in the tight part of the waterproof clothing, that is, the phenomenon of water ingress will still exist;

[0006] Due to the large size difference between the flange surface of the robot or the additional axis and the 5th axis of the robot, it is difficult to design the waterproof clothing here, and there are many folds and unfitness. When the movement range is large, the waterproof clothing will be pulled seriously and wear will be accelerated.

[0007] In addition, the waterproof clothing currently on the market is basically developed according to specific working conditions. When the environment or the posture of the robot changes slightly, the original waterproof clothing will be greatly reduced in use or damaged too quickly.

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