Welding mechanical arm with replaceable electric welding head

Abstract

The invention discloses a welding mechanical arm with a replaceable electric welding head. The welding mechanical arm comprises a base and an inclined arm, and a supporting plate is welded on the sideface of the base; a first connecting block is fixedly connected with the side face of the supporting plate, and a connecting shaft is fixedly connected with the side face of the first connecting block; a movable rod is connected with the surface of the connecting shaft through a shaft; the surface of the movable rod is sleeved with a lantern ring, and a limiting clamp is welded at the bottom of the lantern ring; a transmission disc is installed in the limiting clamp in a fitting mode, and a first transmission rod penetrating through the first connecting block is fixedly connected with the surface of the transmission disc; and a convex block is fixedly connected with the bottom of the transmission disc. Through arrangement of a clamping device, when the welding head needs to be replaced, only a second threaded rod needs to be rotated, and then a pushing rod is driven by the second threaded rod to move towards the side face and apply pushing force to a folding block, so that the foldingblock is unfolded towards the two sides; and under the action of the folding block, two sets of clamping rings can be separated from the interior of a second limiting disc, and replacement of the welding head is achieved.

Description

technical field [0001] The invention relates to the field of mechanical arms, in particular to a welding mechanical arm with replaceable welding heads. Background technique [0002] The robotic arm refers to a complex system with high precision, multiple input and multiple output, high nonlinearity, and strong coupling. In recent years, with the development of robot technology, robotic arms have been put into use in various industries due to their unique operational flexibility. For example, in the fields of industrial assembly, safety and explosion protection, the robotic arm is a complex system, and there are uncertainties such as parameter perturbation, external interference, and unmodeled dynamics. Therefore, there are uncertainties in the modeling model of the manipulator. For different tasks, it is necessary to plan the motion trajectory of the joint space of the manipulator, so as to cascade to form the end pose. The existing manipulators are roughly divided into rigi...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a welding mechanical arm with a replaceable electric welding head, to solve the problem that many mechanical arms and welding heads proposed in the background technology are connected in one piece, and it is very inconvenient when the welding head needs to be replaced. Convenient, and many welding robotic arms cannot adjust the angle according to the actual situation

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