Lifting motor driven welding robot arm

Abstract

The invention discloses a lifting motor-driven welding mechanical arm, which comprises: a column; a rocker, which includes a first rod body, a second rod body, a third rod body and a fourth rod body arranged in the same vertical plane; a traction device, It includes a cable, a positioning cylinder, a limit mechanism and a locking frame; a fixed plate, a rotating rod and a 匚-shaped receiving platform. The lower end surface of the receiving platform is also provided with a fixing seat on which a welding torch is installed. The present invention can realize horizontal and vertical swings through the design of the rocker arm, selectively provide power for horizontal rotation and vertical rotation through the design of the lifting motor, and control the rotation of the rotating rod through the first rocker to realize the adjustment of the height of the workbench. Fine-tuning can weld multi-station racks, which has the advantages of high welding efficiency, low manufacturing cost, and flexible welding stations.

Description

technical field [0001] The invention relates to the field of welding technology. More specifically, the present invention relates to a lifting motor-driven welding robot arm. Background technique [0002] During the processing of the rack assembly line, it is usually necessary to weld the processed rack, and during the welding process, welding mechanical arms are arranged on both sides of the assembly line so as to weld the racks on the assembly line. There are two types of welding manipulators: mechanical and hydraulic. At present, most of the welding manipulators are hydraulically driven. Since the hydraulic drive uses hydraulic oil as the medium for power transmission, there are the following problems: the starting performance is poor, and it is easy to be damaged due to the wear of internal components. Leakage occurs, and the leaked hydraulic oil will pollute the environment. The hydraulic oil is greatly affected by temperature, the overall efficiency is low, and someti...

AI Technical Summary

Problems solved by technology

There are two types of welding manipulators: mechanical and hydraulic. At present, most of the welding manipulators are hydraulically driven. Since the hydraulic drive uses hydraulic oil as the medium for power transmission, there are the following problems: the starting performance is poor, and it is easy to be damaged due to the wear of internal components. Leakage occurs, and the leaked hydraulic oil will pollute the environment. The hydraulic oil is greatly affected by temperature, the overall efficiency is low, and sometimes there is noise and vibration

Hydraulic components require high processing precision, strict assembly requirements, and difficult manufacturing. Maintenance requires high technology and is difficult during use.

The mechanical welding robot arm of the mechanic uses mechanical transmission parts to realize the welding action, which has the advantages of sturdiness and durability, but the traditional single-degree-of-freedom mechanical welding robot arm cannot complete complex actions, and its application range is very limited

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