Robot welding unit for loader arm plate

Abstract

The invention relates to the technical field of robot welding, in particular to a robot welding device for loading the arm plate of a robot. The robot welding device includes a robot welding mechanism and a rotating frame. The rotating frame includes a rotating motor, a horizontally arranged rotating Shaft, several working pallets and two cross holders, the middle points of the two ends of each working pallet are respectively fixed with rotating column heads, and the two ends of the rotating shaft are rotatably installed with bearing seats, and the two bearing seats are opposite to each other. One side is provided with fixed gears, and each rotating column head is fixedly equipped with rotating gears. The robot welding mechanism includes a limit mechanism and several robots. The output end of the robot is equipped with a clamping welding mechanism. In the process of loading and unloading and welding steps, the movable arm plate is always directly above the installation platform, so as to solve the problem that the fixed movable arm plate faces downward when it is turned over to the other side of the rotating frame, and welding is carried out during the clamping process to improve The accuracy of flange positioning.

Description

technical field [0001] The invention relates to the technical field of robot welding, in particular to a robot welding device for a loader arm plate. Background technique [0002] The arm plate of the loader is now manually assembled and welded, and the flange is manually assembled, manually spot-welded, and manually welded. The assembly accuracy is poor, the coaxiality between the inner hole of the flange and the inner hole of the boom plate is poor, the quality of the manual welding seam is unstable, the welding time is long, and the production efficiency is low. [0003] A patent No. CN201911331427.9 is disclosed. The workpiece displacement group of a robot welding device for the arm plate of the loader includes a mounting frame, a servo motor, a rotating frame, a workpiece, a buckle and a fixing plate. The servo motor Fixedly installed on one side of the mounting frame, the rotating shaft of the servo motor is fixedly connected to the rotating frame, a fixing plate for ...

AI Technical Summary

Problems solved by technology

[0005] (1) The two sides of the rotating frame of the device are the loading and unloading area and the welding area respectively. After the rotating frame is turned over, the side of the fixed plate of the rotating frame close to the loading and unloading area is fixed on the side of the loader arm plate, and then rotated to the welding area Finally, the side of the fixed plate that fixes the arm plate of the loader faces downward, and the rotating frame cannot realize that the side of the fixed plate that fixes the arm plate of the loader faces upward in the loading and unloading area and the welding area, which hinders the loading of the robot in the welding area. Flange welding steps for the mobile arm plate

[0006] (2) The robot of this device grabs the flange and transports it to the arm plate of the loader. The weight of the fixed plate changes, and the center of gravity tends to move downward. Before welding, the robot’s air gripper must loosen the flange. In order to drive the automatic welding gun to weld the welding position of the flange plate and the arm plate of the loader, it cannot be realized at the same time, so that the flange plate cannot be positioned during welding, resulting in deviations in the position of the flange plate

[0007] (3) After the rotating frame rotates, the fixed position after the fixed plate rotates to a fixed angle has no auxiliary positioning components, so that after the fixed plate rotates to the welding area, the rotating frame will shake during the welding process, resulting in deviation of the welding position. The welding of the blue plate is not firm, causing the rotation interference of the arm plate of the loader

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