Lead screw type mechanical arm of robot for welding

Abstract

The invention discloses a lead screw type mechanical arm of a robot for welding. The lead screw type mechanical arm of the robot for welding comprises a vertical column, a main arm, a auxiliary arm, a fixing plate, a rotating rod and a [-shaped bearing platform, wherein the main arm comprises a first rod body, a second rod body and an L-shaped third rod body which are sequentially hinged in a same vertical plane; the auxiliary arm comprises a fourth rod body, a telescope frame, a fifth rod body, a sixth rod body, a seventh rod body, and an L-shaped eighth rod body which are arranged in the same vertical plane with the main arm; and a fixing base is further arranged on the lower end surface of the bearing platform, and a welding gun is mounted on the fixing base. According to the lead screw type mechanical arm of the robot for welding, swing in the horizontal and vertical directions is achieved through a curved arm design, rotation of the rotating rod is operated by an first rocker, thus micro adjusting of the height of an working table is achieved to conduct welding on a machine frame with multiple positions, the lead screw type mechanical arm of the robot for welding has the advantages of being high in welding efficiency, low in manufacturing cost, and flexible in station welding.

Description

technical field [0001] The invention relates to the field of welding technology. More specifically, the present invention relates to a robotic arm for lead screw welding. 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 sometimes ...

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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