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High-vacuum, long-time, high-power laser welding light-transmitting glass protective device

A technology of light-transmitting glass and protective devices, applied in laser welding equipment, welding equipment, metal processing equipment, etc., can solve problems such as pollution of light-transmitting glass, achieve the effects of avoiding pollution, reducing device cost, and increasing service life

Active Publication Date: 2022-03-25
MATERIAL INST OF CHINA ACADEMY OF ENG PHYSICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, in order to solve the above-mentioned problems existing in the prior art, the purpose of the present invention is to provide a high-vacuum, long-time, high-power laser welding light-transmitting glass protective device to solve the problem of continuous high-power laser welding in existing vacuum laser welding equipment. The problem of metal vapor plasma and smoke pollution on the light-transmitting glass during welding has realized the blocking of metal welding vapor under high vacuum, long-term and high-power welding conditions, and also realized the dynamic seal replacement of protective glass

Method used

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  • High-vacuum, long-time, high-power laser welding light-transmitting glass protective device
  • High-vacuum, long-time, high-power laser welding light-transmitting glass protective device
  • High-vacuum, long-time, high-power laser welding light-transmitting glass protective device

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Effect test

Embodiment 1

[0041] In this embodiment, a high-vacuum, long-time, high-power laser welding light-transmitting glass protection device is specifically provided, aiming to use the light-transmitting glass protection device to solve the problem of high-power laser continuous welding in existing vacuum laser welding equipment The problem of metal vapor plasma and smoke pollution on light-transmitting glass. The light-transmitting glass protection device includes: a laser welding head 1, a light-transmitting glass protection component 2 and a vacuum chamber system 3, and the specific design is as follows:

[0042] ① Vacuum chamber system

[0043] The vacuum chamber system 3 includes a vacuum chamber 3-1 and a vacuum pump group 3-2 matched with the vacuum chamber 3-1, the vacuum pump group 3-2 communicates with the inside of the vacuum chamber 3-1 and vacuumizes through the vacuum pump group 3-2 , under the action of the vacuum pump group 3-2, ensure that the vacuum state is maintained in the v...

Embodiment 2

[0063] This embodiment is based on Embodiment 1. The steam protection glass 2-11 is placed on the upper surface of the mounting bracket 2-16 and fixed by a barrel nut. It is necessary to ensure that the steam protection glass 2-11 is parallel to the laser transparent glass lens 2-10 , at the same time, the mounting bracket 2-16 and the worm gear I2-17 are connected as a whole by welding, the worm gear I2-17 and the worm gear II 2-18 are transmitted through a vertical connection, and the handle 2-21 drives the worm gear II 2- through the magnetic coupling 2-20 18 rotary type, the magnetic coupling 2-20 can play a sealing transmission effect, ensuring that the steam protection glass 2-11 polluted part is replaced during the welding process without affecting the welding process and the vacuum degree of the welding chamber, prolonging the steam protection The service life of the glass 2-11, and ultimately achieve the purpose of high-vacuum, long-time, high-power laser continuous we...

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Abstract

The invention discloses a light-transmitting glass protective device for high-vacuum, long-time and high-power laser welding, which belongs to the technical field of vacuum laser welding. And its internal rotation is equipped with steam protection glass, the steam protection glass is parallel to the laser transparent glass lens and is equipped with a power component to drive its rotation; the gap between the primary vacuum gradient cavity and the secondary vacuum gradient cavity is passed through the laser The hole I is connected, and the other end of the secondary vacuum gradient cavity is provided with a laser through hole II, and the laser through hole II is connected with a pre-stage protective metal tube; the laser through hole I, the laser through hole II and the pre-stage The apertures of the protective metal tubes are equal and located on the same central axis, and the shaft axis of the steam protective glass is parallel and non-coaxial to the central axis, which realizes the welding of metal welding steam under high vacuum, long time and high power welding. It also realizes the dynamic seal replacement of the protective glass.

Description

technical field [0001] The invention belongs to the technical field of vacuum laser welding, and in particular relates to a light-transmitting glass protective device for high-vacuum, long-time, and high-power laser welding. Background technique [0002] In some specific industries, welding materials are easily oxidized, and the welding depth of the welding part is required to be deep, which requires high vacuum (10 -3 Pa level) welding in a closed environment, laser welding equipment is flexible, and it is easy to realize welding in a high-vacuum closed environment, but the "shielding" effect of photoplasma or smoke in the laser welding process limits laser welding in deep penetration welding applications. Vacuum laser welding can effectively reduce the "shielding" effect of welding fume. However, during vacuum laser welding, the strongly evaporated metal plasma is easy to adhere to the surface of the transparent glass, causing pollution, seriously affecting the laser tran...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K26/12B23K26/70B23K26/21
CPCB23K26/1224B23K26/702B23K26/21
Inventor 郭兴根毕海林李玉斌严小烨陈维窦作勇夏胜全何建军李盛和蒋振国李明伟
Owner MATERIAL INST OF CHINA ACADEMY OF ENG PHYSICS