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

A technology of light-transmitting glass and protective device, which can be used in laser welding equipment, welding equipment, metal processing equipment, etc., and can solve problems such as light-transmitting glass pollution

Active Publication Date: 2021-04-23
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 and high-power laser welding light-transmitting glass protection device
  • High-vacuum, long-time and high-power laser welding light-transmitting glass protection device
  • High-vacuum, long-time and high-power laser welding light-transmitting glass protection 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 I 2-17 are connected as a whole by welding, the worm gear I 2-17 and the worm gear II 2-18 are driven through a vertical connection, and the handle 2-21 is driven by a magnetic coupling 2-20 The worm gear II 2-18 is rotating, and the magnetic coupling 2-20 can play a sealing transmission effect, ensuring that the welding process and the vacuum degree of the welding chamber are not affected while replacing the contaminated part of the steam protection glass 2-11 during the welding process. The service life of the steam protective glass 2-11 is prolonged, and the purpose of continuous high-vacuum, long-time, and high-power laser welding i...

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Abstract

The invention discloses a high-vacuum, long-time and high-power laser welding light-transmitting glass protection device, and belongs to the technical field of vacuum laser welding. The high-vacuum, long-time and high-power laser welding light-transmitting glass protection device comprises a laser light-transmitting glass lens arranged at one end part of a first-stage vacuum gradient cavity and steam protection glass rotationally arranged in the first-stage vacuum gradient cavity, and the steam protection glass is parallel to the laser light-transmitting glass lens and is provided with a power assembly for driving the steam protection glass to rotate. The first-stage vacuum gradient cavity and a second-stage vacuum gradient cavity are in communication through a laser transmitting hole I, and the other end of the second-stage vacuum gradient cavity is provided with a laser transmitting hole II and communicates with a preceding-stage protective metal pipe through the laser transmitting hole II. The laser transmitting hole I, the laser transmitting hole II and the preceding-stage protective metal pipe are equal in hole diameter and are located on the same center axis, the axis of a rotating shaft of the steam protection glass and the center axis are parallel and non-coaxial, blocking of metal welding steam in a high-vacuum, long-time and high-power welding state is achieved. and dynamic seal replacement of the protective glass is also realized.

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 more flexible, and it is easy to realize welding in a high-vacuum closed environment, but the "shielding" effect of photo-induced plasma or smoke in the laser welding process limits the 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 affect...

Claims

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Application Information

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Patent Type & Authority Applications(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