Wire passing protection device of coaxial rotating joint of inner wire walking industrial robot

Abstract

The invention relates to a wire passing protection device of a coaxial rotating joint of an inner wire walking industrial robot. The device comprises a wire passing guide assembly and a wire passing protection assembly. The wire passing guide assembly is installed in a front casting for wire feeding, the wire passing protection assembly is installed in a wire passing hole and used for a rear casting for wire discharge, an electric wire penetrating in the wire passing guide assembly is aligned to the wire passing protection assembly to penetrate out, and the thickness of the electric wire penetrating in the wire passing guide assembly is restrained by the wire passing guide assembly to enable the electric wire to penetrate out of the wire passing protection assembly. For the inner wire walking industrial robot, the structure composed of the wire passing protection assembly, a high-flexibility wire (with a protection layer) and the wire passing guide assembly is adopted, dual protectionis achieved for the electric wire, joint transmission lubricating requirements are comprehensively considered, the structure is compact and small, no lubricating oil is additionally needed for lubricating the electric wire, the fault risk is lowered, the electric wire torsion distance is prolonged, circuit fixing is convenient, electric wire torsion reliability is effectively improved, wiring saves more labor and time, operation is easy, convenient and fast, and the requirements for operation skills of staff are lowered.

Description

technical field [0001] The invention relates to the field of industrial robots, and more specifically, relates to a wire-passing protection device for a coaxial rotary joint of an inner-routed industrial robot. Background technique [0002] The routing form of the six-axis robot manipulator includes two forms: external routing and internal routing. Among them, the robot in the form of internal wiring is neat and beautiful, small in size, and suitable for many assembly lines, but the internal wiring is difficult and demanding. In the prior art, most of the joint base parts and the third joint of the robot in the form of internal routing adopt "protective sleeve + twisted pair loose wire" or directly use "high flexibility with protective layer + lubricating oil". The first structure has high requirements on twisted-pair wires and anti-interference, while the highly flexible protective layer of the second structure is easy to wear, the service life is not long, and the later u...

AI Technical Summary

Problems solved by technology

The common fixing method is that there are panels binding the wires at both ends of the wire hole, but there are bends and arches in the bundling part, which cannot prevent the wires from touching the inner hole, especially when the inner hole of the rear casting is facing the front casting. The position where the relative torsion angle of the wire is the largest, which is most likely to cause contact and friction

[0005] However, with the fixing method of the existing technology, in order to alleviate the contact, the technical requirements for bundling the wires are extremely high, which is difficult and requires a lot of assembly time

Images