Laser welding seam coaxial blowing protection device and application method

A technology of blowing protection and protection device, which is applied in the direction of laser welding equipment, welding equipment, metal processing equipment, etc., can solve the problem that the cavity cannot be made into a closed space, and achieve simple structure, convenient adjustment and use, and reliable protection Effect

Active Publication Date: 2016-07-20
HANS LASER TECH IND GRP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Due to the existence of the anti-splash air knife in the laser welding process, the coaxial air blowing protection device must be placed under the air knife. It is said that the entire cavity of the coaxial blowing device cannot be made into a closed space

Method used

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  • Laser welding seam coaxial blowing protection device and application method
  • Laser welding seam coaxial blowing protection device and application method
  • Laser welding seam coaxial blowing protection device and application method

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Embodiment Construction

[0037] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention.

[0039] refer to image 3 or Figure 4 As shown, the present invention provides a c...

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Abstract

The invention relates to the technical field of laser welding, and discloses a laser welding seam coaxial blowing protection device and an application method. The protection device comprises a coaxial nozzle, an annular gas hood, a lower cavity, an upper cavity, first air inlet nozzles and second air inlet nozzles; the upper cavity, the lower cavity, the annular gas hood and the coaxial nozzle are sequentially and coaxially mounted fixedly; a boss end of the lower cavity is arranged in a through hole of the annular gas hood; the coaxial nozzle is arranged in the boss end of the lower cavity, and an annular gas seam communicated with a gas groove is formed between the coaxial nozzle and an interlayer end; the protection device is applied to a welding device, the protection device and laser are coaxially arranged, a laser beam sent out by a welding head passes through the protection device firstly and then acts on a workpiece to be welded, the protection device is additionally arranged in the welding device, and reliability of welding of the workpiece to be welded can be ensured; and in the welding process of the workpiece to be welded, air can be exhausted, welding seam oxidation caused by air involving can be prevented, and the high-temperature welding seam can be subject to delay protection.

Description

technical field [0001] The invention relates to the technical field of laser welding gas blowing protection, and more specifically relates to a coaxial gas blowing protection device for laser welding seams and an application method. Background technique [0002] The coaxial blowing protection method is a commonly used weld seam protection method in welding. When coaxial blowing, the protective air flow is coaxial with the laser beam. There is no direction selection for blowing, which can reduce the constraints of the blowing direction on the welding posture and simplify welding. For trajectory programming, especially in the case of three-dimensional welding, the coaxial air blowing method is more flexible and convenient. [0003] During the laser welding process, due to the existence of the anti-splash air knife, the coaxial blowing protection device must be placed under the air knife. The air knife part is connected to the outside air, and the laser channel inside the coaxi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K26/14B23K26/24
Inventor 邓时累郑贤文张奎刘斌毛大英陈根余陈燚高云峰
Owner HANS LASER TECH IND GRP CO LTD
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