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Welding control method and device

A control method and technology of a control device, which are applied in welding equipment, laser welding equipment, manufacturing tools, etc., to achieve the effect of improving welding efficiency and obtaining quicker results.

Active Publication Date: 2016-10-26
昆山华恒机器人有限公司
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  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem solved by the invention is how to improve the welding quality and welding efficiency when the weld seam is long and the weld seam groove changes unevenly

Method used

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  • Welding control method and device

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Embodiment Construction

[0034]At present, in the process of welding control, the method of contact positioning is mainly used to search for the width of the weld at the first and last ends of the weld, and finally convert the searched weld width into the width of the welding swing, and then The welding of the welding robot is controlled by using the welding swing width.

[0035] However, since the above-mentioned welding control method only locates the positions at the beginning and end ends, the obtained information of the weld groove is less, and it is usually applicable to the situation where the groove changes uniformly and the weld is short. When applied to the weld In the case of longer and uneven weld groove changes, the welding quality is poor and the welding efficiency is low.

[0036] In view of the above problems, the embodiment of the present invention provides a welding control method. By applying the method, the weld seam is scanned and the three-dimensional configuration of the weld be...

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Abstract

The invention provides a welding control method and device. The method includes the steps that a weld joint is scanned, the image characteristic points of the weld joint are extracted, and the image characteristic points of the weld joint comprise a characteristic point of a weld groove in the weld joint and a characteristic point of the trajectory of the weld joint; according to the image characteristic points of the weld joint, the three-dimensional configuration of the weld joint is constructed; and on the constructed three-dimensional configuration, corresponding welding process parameters are calculated along the trajectory of the weld joint at the interval of a preset step size and are output so that the welding control can be performed according to the calculated welding process parameters, and the preset step size is smaller than the length of the weld joint. Due to the application of the above scheme, the welding quality and the welding efficiency generated when the weld joint is long and the change of the weld groove is not uniform can be improved.

Description

technical field [0001] The invention relates to the technical field of welding control, in particular to a welding control method and device. Background technique [0002] In the structure of construction machinery, there are many welds caused by the butt joint of two plates. In order to ensure the degree of welding, the weld seam is usually processed to form a weld seam groove, and the weld seam groove is a groove of a certain geometric shape. [0003] In the conventional welding process, welding robots are usually used to automatically weld the weld seam. The welding robot is a rigid robot that performs repetitive actions and controls through manual teaching, and uses static and solid welding process parameters for welding. [0004] However, in the process of welding the welds produced by the butt joint of large-scale structural parts, because large-scale structural parts often have the problem of large blanking and assembly errors, the resulting weld grooves often chang...

Claims

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Application Information

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IPC IPC(8): B23K26/03B23K26/08B23K26/24B23K26/70
CPCB23K26/03B23K26/08B23K26/24B23K26/702
Inventor 龚烨飞唐建武张嘎赵俭陈刘明蒋超
Owner 昆山华恒机器人有限公司
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