Big arm of robot, and robot

Abstract

The invention discloses a big arm of a robot, and the robot. The big arm of the robot comprises a main arm body, a first connecting part and a second connecting part, wherein the main arm body has a preset length and a preset thickness, and the first connecting part and the second connecting part are located at the two ends, in the length direction, of the main arm body correspondingly; a groove which extends in the length direction of the main arm body and is concave in the thickness direction of the main arm body is formed in the main arm body; and the groove comprises a bottom wall, a first side wall, a second side wall, a first end wall and a second end wall, the first side wall and the second side wall are located on two long sides of the bottom wall, and the first end wall and the second end wall are located on two short sides of the bottom wall. Two or more reinforcing ribs are arranged in the groove in the mode of a preset pattern and used for improving the strength of the big arm of the robot. At least one of the reinforcing ribs is provided with a wiring hole and / or wiring slot allowing a cable to penetrate through, and the cable can penetrate through the groove in the length direction of the big arm through the wiring hole and / or the wiring groove.

Description

technical field [0001] The invention relates to the technical field of industrial robots, in particular to a robot arm and a robot. Background technique [0002] The big arm of the articulated industrial robot bears the dynamic and static loads of its terminal forearm and wrist and the load generated by the work object, so it should have sufficient strength. At the same time, in order to reduce its own dynamic and static loads, the big arm should also be reduced small mass. In general, in order to reduce the mass, grooves are provided on the wall of a boom, so that the section of the boom is in the shape of a "C"; at the same time, in order to ensure that it has sufficient strength, reinforcing ribs can also be provided in the groove. In order to be able to wire inside the arm body, technicians will design an embedding groove on the wall (back) of the arm body opposite to the slotted wall surface. The embedding groove is arranged along the length of the arm body to accommod...

AI Technical Summary

Problems solved by technology

This design will complicate the section shape of part of the section where the embedding groove is set on the arm body, which increases the difficulty of the static force checking process of the arm body during the design process

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