Method and system for automatic robot welding based on multilayer and multi-pass welding of curved surfaces

A multi-layer multi-pass welding and automatic welding technology, applied in welding equipment, arc welding equipment, manufacturing tools, etc., can solve the problems of low work efficiency, welding quality depends on, multi-time, etc., to improve work efficiency and ensure welding. quality effect

Inactive Publication Date: 2012-09-19
昆山华恒机器人有限公司
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Problems solved by technology

[0004] However, the welding quality of previous manual surfacing or robot online teaching depends on the technical level of the operator, and the quality cannot be guaranteed
Among them, manual surfacing welding is more difficult, especially the welding of the transition surface. It is even more difficult to build a smooth transition surface between the surfacing welding surface and the supporting surface after the groove surfacing welding
However, manual teaching takes up the working time of the robot, and the efficiency is very

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  • Method and system for automatic robot welding based on multilayer and multi-pass welding of curved surfaces
  • Method and system for automatic robot welding based on multilayer and multi-pass welding of curved surfaces
  • Method and system for automatic robot welding based on multilayer and multi-pass welding of curved surfaces

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[0046] The present invention will be described in detail below with reference to the specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and structural, method, or functional changes made by those skilled in the art according to these embodiments are all included in the protection scope of the present invention.

[0047] The technical solution of the present invention will be described below with specific embodiments applied to the guide vane surfacing welding on the water turbine. Of course, the technology of the present invention can not only be applied to the welding process of the guide vane of the water turbine, but also can be applied to curved surfaces in other industrial production. Multi-layer multi-pass welding to surfaces.

[0048] As we all know, as a hydraulic mechanical device that converts the energy of water flow into rotating mechanical energy to drive a generator, a water turbine is often com...

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Abstract

The invention discloses a method and system for automatic robot welding based on multilayer and multi-pass welding of curved surfaces. The method comprises the following steps of: S1, extracting a surfacing parameter of a welding pass from a database; S2, extracting and processing a welding-pass characteristic curve according to the surfacing parameter so as to determine welding path information needed in welding; S3, calculating posture information of a welding gun according to the welding path information; and S4, automatically generating a robot operating program according to the welding path information and the posture information of the welding gun, and carrying out welding operation according to the operating program. According to the invention, a specific computation model and an arrangement strategy are established according to the relevant parameters of the current welding pass needing to carry out multilayer and multi-pass welding so as to calculate the whole movement locus and the welding-gun posture needed by welding accurately, and the operating program of a robot controller is automatically generated for carrying out corresponding welding action, so that the welding quality is guaranteed and the working efficiency of welding of a robot is greatly increased.

Description

technical field [0001] The invention relates to industrial welding technology, in particular to a method and system for robot automatic welding based on curved surface multi-layer multi-pass welding. Background technique [0002] At present, in some industrial productions, multi-layer and multi-pass welding is generally used to improve the welding quality of special thick plate welding. Guide vane surfacing) to complete the guide vane welding. [0003] Guide vane surfacing welding is actually a groove fillet weld with a thickness of more than 80--100mm between the curved surface and the curved surface. The characteristic of multi-layer multi-pass welding is that the weld is not a straight weld, but a spatial curve, and the length of the curve As the welding layer increases and becomes shorter, manual surfacing or manual robot online teaching is usually used to complete the guide vane surfacing operation. [0004] However, the welding quality of previous manual surfacing or...

Claims

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Application Information

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IPC IPC(8): B23K9/04B23K9/095
Inventor 程学刚严万春杜望周源郁春华朱伟
Owner 昆山华恒机器人有限公司
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