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Method for machining universal robot welding fixture of middle-large size excavator movable arm and supporting base

A technology of robotic welding and processing methods, applied in welding equipment, auxiliary welding equipment, metal processing equipment, etc., can solve the problems of inability to ensure accurate positioning, inability to ensure the beauty of the weld seam and the shape of the welded section, and achieve guaranteed The effect of performance and reliability, reliable performance and high welding precision

Active Publication Date: 2015-03-11
龙工(上海)挖掘机制造有限公司
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the previous design, the hinged support of the excavator arm and stick is generally welded by manual measurement and positioning, which can neither ensure accurate positioning nor ensure the appearance of the weld and the shape of the welded section.
[0004] In the later period, by improving its structure and welding process, robot welding was adopted, that is, processing was carried out on the worktables of two welding robots. This required a welding tool to fix the workpiece so that it could be processed by the welding robot, and the use of the boom could be realized. The performance and reliability of robotic welding tools have not been reported publicly

Method used

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  • Method for machining universal robot welding fixture of middle-large size excavator movable arm and supporting base
  • Method for machining universal robot welding fixture of middle-large size excavator movable arm and supporting base

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Embodiment Construction

[0023] In order to make the present invention more comprehensible, a preferred embodiment is described in detail below with accompanying drawings.

[0024] figure 1 and figure 2 Shown are schematic diagrams of the front view and top view of the universal robot welding tool for the arm support of medium and large excavators, and the processing method of the universal robot welding tool for the arm support of medium and large excavators, including the following steps:

[0025] Step 1: Select a plate that can be placed on the worktables of two welding robots and has roughly the same shape as the arm support of the excavator as the base 10;

[0026] Step 2: Assemble the first positioning pin 9 on the worktable of the welding robot on one side, which is used to locate the degree of freedom of the left and right directions of the base 10;

[0027] Step 3: Drill three through holes at both ends of the base 10, the positions of the through holes should correspond to the grooves on ...

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Abstract

The invention provides a method for machining a universal robot welding fixture of a middle-large excavator movable arm and a supporting base. Firstly, an appropriate plate is selected for serving as a base; secondly, a first positioning pin is assembled on a welding robot working table on one side; the base is locked on the welding robot working table; two second positioning pins are assembled in the middle of the base, and the second positioning pins are in interference fit with the base; two holes are drilled in the rear side of the base, threaded rods are inserted into the holes, and positioning sleeves are assembled on the threaded rods; a workpiece is placed on the base, positioned and locked; an U-shaped hole is machined in the front side of the base, and pressing plates are installed in the U-shaped hole, so that the pressing plates are made to press and firmly lock the workpiece. According to the provided method, the defects in the prior art are overcome, welding precision is high, machining time is short, in addition, performance is reliable, precision of installation positions of the movable arm and a bucker rod is guaranteed, and then using performance and reliability of the movable arm are guaranteed.

Description

technical field [0001] The invention relates to a processing method of a universal robot welding tool for a medium and large excavator arm support, and belongs to the technical field of excavator arm processing. Background technique [0002] The hydraulic excavator is a self-propelled construction machine. The realization of functions, the transmission of power, and the execution of movements in the operation process must be implemented on the structures and components of each department. Therefore, the structural design of the hydraulic excavator is the key to determine the performance, reliability, quality and manufacturing cost of the whole machine. Among them, the boom, stick and bucket are the working devices of the excavator, and they are also the executive components of the excavator. The processing and welding of these components are the key points we need to consider to ensure the performance and reliability of these structural parts. As far as the boom is concer...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K37/04B23P15/00
Inventor 杜云龙孙利兵石清曾招琪翁帅
Owner 龙工(上海)挖掘机制造有限公司
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