CN102513702A - Vacuum laser welding equipment and method - Google Patents
Vacuum laser welding equipment and method Download PDFInfo
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- CN102513702A CN102513702A CN2012100021916A CN201210002191A CN102513702A CN 102513702 A CN102513702 A CN 102513702A CN 2012100021916 A CN2012100021916 A CN 2012100021916A CN 201210002191 A CN201210002191 A CN 201210002191A CN 102513702 A CN102513702 A CN 102513702A
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Abstract
The invention provides vacuum laser welding equipment and method and belongs to the technical field of welding. The equipment and method provided by the invention are used for solving the problems of inconvenience for realization of flexible processing and energy loss in a welding technology. The equipment is characterized in that a workbench is arranged on the bottom plate of a vacuum capsule; a triaxial linkage system is arranged on the inner side wall of the vacuum capsule; a laser head is arranged on the triaxial linkage system; vacuum pumping system is arranged on the outer side wall of the vacuum capsule; the laser head is connected with a laser generator through an optical fiber; the laser head is connected with a numerical control device through a cable; and a water-cooling machine is used for cooling the laser head. The method comprises the following steps: moving the workbench out of the capsule, arranging a workpiece to be welded on the workbench, then moving the workbench into the capsule and closing the door of the capsule; starting up the vacuum pumping system, starting up the laser generator, the numerical control device and the water-cooling machine when the vacuum degree in the capsule reaches the vacuum degree required by the workpiece, and welding; and after welding is finished, injecting air into the capsule, opening the door of the capsule after the air pressure in the capsule reaches the atmospheric pressure, and taking out the workpiece. The equipment and method provided by the invention are used for welding the workpiece.
Description
Technical field
The present invention relates to a kind of laser welding apparatus and method, be specifically related to a kind of vacuum laser welding equipment and method, belong to welding technology field.
Background technology
The development of the progress at full speed, particularly aerospace industry of modern industrial technology, high to the welding quality requirement of a lot of parts, the particularly welding of some precise parts is welded into last one manufacturing procedure usually.Electron-bombardment welding is connected and is commonly used to carry out the processing of some precision components.But because electron beam gun body volume is big, quality is heavy, and the vacuum chamber effective rate of utilization is low on the one hand, and the precision of motion also is restricted simultaneously, also is not easy to realize flexible processing.The conventional laser welding process is accomplished welding in air, need to adopt protective gas butt welded seam metal to protect, but the part that some butt welded seam metal coatings are had relatively high expectations then can't meet the demands.Simultaneously, laser also belongs to a kind of high-energy particle flow, and aerial propagation certainly will bump with airborne particle, the loss portion of energy.
Summary of the invention
The objective of the invention is in order to solve existing vacuum electron beam welding electron beam gun body volume big; Quality is heavy, and the vacuum chamber effective rate of utilization is low, and the precision of motion is restricted; Be not easy to realize flexible processing; Conventional laser welding aerial propagation of laser and airborne particle bump, off-energy and the limited problem of weld metal protection effect, and then a kind of vacuum laser welding equipment and method are provided.
Technical scheme of the present invention is: the vacuum laser welding equipment comprises that vacuum chamber body, workbench, pumped vacuum systems, three-shaft linkage system, industrial monitor, laser head, optical fiber import seal, cable imports sealing ring, water cooled pipeline sealing ring, optical fiber, cable, water cooled pipeline, numerical control device, laser generator and water cooling unit;
Workbench is installed on the base plate of vacuum chamber body, and the three-shaft linkage system is installed on the madial wall of vacuum chamber body, and laser head is installed in the three-shaft linkage system; Industrial monitor is installed on the laser head, and pumped vacuum systems is installed on the lateral wall of vacuum chamber body, and an end of optical fiber passes the vacuum chamber body and is connected with laser head; The other end of optical fiber is connected with the laser generator that places the vacuum chamber external; One end of cable passes the vacuum chamber body and is connected with laser head, and the other end of cable is connected with the numerical control device that places the vacuum chamber external, and an end of water cooled pipeline passes the bottom that the vacuum chamber body places laser head; The other end of water cooled pipeline is connected with the water cooling unit that places the vacuum chamber external; Import sealing ring through optical fiber between optical fiber and the vacuum chamber body and is connected, be connected through cable importing sealing ring between cable and the vacuum chamber body, be connected through the water cooled pipeline sealing ring between water cooled pipeline and the vacuum chamber body; The radius of laser head is less than 10mm, and height is less than 20mm.
Technical scheme of the present invention is: the concrete steps of vacuum laser welding method are:
Step 1, that workbench is shifted out vacuum chamber is external, and workpiece to be welded is installed on the workbench, workpiece to be welded and workbench is together moved in the vacuum chamber body again, closes the hatch door of vacuum chamber body, and the leak rate of vacuum chamber body is no more than 0.667Pa/h;
Step 2, start pumped vacuum systems, when treating that vacuum in the vacuum chamber body reaches the vacuum that workpiece requires, start laser generator, numerical control device and water cooling unit, weld; Pumped vacuum systems reached 1 * 10 with the working vacuum degree in the vacuum chamber body at 5 minutes to 15 minutes in the scope
-2Torr, final vacuum 1 * 10
-4Torr;
Step 3, accomplish welding after, inject air to the vacuum chamber body, treat that air pressure in the vacuum chamber body reaches atmospheric pressure after, the hatch door of open vacuum cabin body takes out workpiece.
The present invention compared with prior art has following beneficial effect:
The present invention places laser head in the vacuum chamber body, and laser beam is imported in the vacuum chamber body by laser generator through optical fiber, accomplishes under the vacuum environment of laser weld in the vacuum chamber body.The monitoring of welding process is undertaken by industrial monitor, and laser head cools off through cooling-water machine, and cooling effectiveness is high; The good seal performance of vacuum chamber body; Pumped vacuum systems requires to make the vacuum chamber body reach higher vacuum at short notice, workbench and three-shaft linkage system is housed, integrated all parameter control modules of numerical control device and laser head run trace control module in the vacuum chamber body; And with workbench coupling, with the automatic welding of implementation space track.Adopt method for laser welding under the vacuum environment, compare with the conventional laser welding, the gas that do not need protection, the protection better effects if of butt welded seam metal has been avoided the interaction of particle in light beam and the air simultaneously, has improved energy conversion efficiency.And compare with the vacuum electron beam welding, the laser welding system volume is far smaller than electron beam gun, has improved the utilization rate of vacuum chamber body, also is convenient to realize flexible processing.The good protection atmosphere of vacuum and the advantages of laser welding flexible good processability are got up in the vacuum laser welding, in the fine structure part welding of civil and military industry, will be used widely.On the other hand, space probation is being carried out in the whole world at present energetically, and following space station construction and the enforcement of maintenance and lunar exploration engineering can relate to the space solder technology unavoidably.For the ground simulation test of space welding, vacuum laser welding equipment and technology also will be applied.
Description of drawings
Fig. 1 is a vacuum laser welding equipment schematic diagram of the present invention.
The specific embodiment
The specific embodiment one: combine Fig. 1 that this embodiment is described, the vacuum laser welding equipment of this embodiment comprises that vacuum chamber body 1, workbench 2, pumped vacuum systems 3, three-shaft linkage system 4, industrial monitor 5, laser head 6, optical fiber import seal 7, cable imports sealing ring 8, water cooled pipeline sealing ring 9, optical fiber 10, cable 11, water cooled pipeline 12, numerical control device 13, laser generator 14 and water cooling unit 15;
Workbench 2 is installed on the base plate of vacuum chamber body 1; Three-shaft linkage system 4 is installed on the madial wall of vacuum chamber body 1, and laser head 6 is installed in the three-shaft linkage system 4, and industrial monitor 5 is installed on the laser head 6; Pumped vacuum systems 3 is installed on the lateral wall of vacuum chamber body 1; One end of optical fiber 10 passes vacuum chamber body 1 and is connected with laser head 6, and the other end of optical fiber 10 is connected with placing vacuum chamber body 1 outside laser generator 14, and an end of cable 11 passes vacuum chamber body 1 and is connected with laser head 6; The other end of cable 11 is connected with placing vacuum chamber body 1 outside numerical control device 13; One end of water cooled pipeline 12 passes the bottom that vacuum chamber body 1 places laser head 6, and the other end of water cooled pipeline 12 water cooling unit 15 outside with placing vacuum chamber body 1 is connected, is connected through optical fiber importing sealing ring 7 between optical fiber 10 and the vacuum chamber body 1; Importing sealing ring 8 through cable between cable 11 and the vacuum chamber body 1 is connected; Be connected through water cooled pipeline sealing ring 9 between water cooled pipeline 12 and the vacuum chamber body 1, the radius of laser head 6 is less than 10mm, and height is less than 20mm.
What laser instrument (laser instrument comprises laser head and optical fiber) adopted is the QCW of IPG company optical fiber laser; Or the YSL-600/6000-QCM-AC of IPG company optical fiber laser; Or the MX10III-A of EdgeWave company optical fiber laser; Or the Red Power 400W of SPI company multimode optical fibre laser device; Or the LDF 5000-40 of Laserline company fiber coupled laser diode.
What three-shaft linkage system 4 adopted is the earth numerical control 200M three-axis numerical control system or 200Y three-axis numerical control system; Or the golden hawk numerical control JYSK 103M of Science and Technology Ltd. three-axis numerical control system; Or the German Engelhardt F33 of company three-axis numerical control system; Or Mitsubishi M64SM three-axis numerical control system; Or Nanjing Xin Fangda numerical control CNC-60MA-F three-axis numerical control system.
What water cooling unit 15 adopted is due east, Wuxi LSD45PA water cooling unit; Or nine divisions of China in remote antiquity is with sincere scientific and technological SL-03/04/05; Or Beijing Hess HS-C2/C3/C4/C5/C6 of Science and Technology Ltd. circulating water cooling system; Or the special magnetoelectricity FL-P of the Science and Technology Ltd. self-loopa water-cooled machine of volt-ampere.
Pumped vacuum systems 3 adopts is the pumped vacuum systems that general upright vacuum equipment Co., Ltd of Yi Fanke vacuum system (Shanghai) Co., Ltd., Guangzhou Heng Ze vacuum equipment Co., Ltd, Dongguan, Lanzhou vacuum equipment Co., Ltd or Shenyang Hengjin Vacuum Technology Co., Ltd. produce.
What industrial monitor 5 adopted is that the beautiful LSC-M500TG/LSC-C500Tpro of the Electron Technology Co., Ltd high definition CCD that looks captures all-in-one; Or AFT-130UC/UM of Ai Feite photoelectricity technology corporation, Ltd. or AFT-2000UC.
The specific embodiment two: combine Fig. 1 that this embodiment is described, the concrete steps of the vacuum laser welding method of this embodiment are:
Step 1, workbench 2 is shifted out outside the vacuum chamber body 1, workpiece to be welded is installed on the workbench 2, workpiece to be welded and workbench 2 are together moved in the vacuum chamber body 1 again, close the hatch door of vacuum chamber body 1, the leak rate of vacuum chamber body 1 is no more than 0.667Pa/h;
Step 2, start pumped vacuum systems 3, when treating that vacuum in the vacuum chamber body 1 reaches the vacuum that workpiece requires, start laser generator 14, numerical control device 13 and water cooling unit 15, weld; Pumped vacuum systems 3 reached 1 * 10 with the working vacuum degree in the vacuum chamber body 1 at 5 minutes to 15 minutes in the scope
-2Torr, final vacuum 1 * 10
-4Torr;
Step 3, accomplish welding after, inject air to vacuum chamber body 1, treat that air pressure in the vacuum chamber body 1 reaches atmospheric pressure after, the hatch door of open vacuum cabin body 1 takes out workpiece.
The specific embodiment three: in the step 2 of this embodiment, pumped vacuum systems 3 reached 1 * 10 with the working vacuum degree in the vacuum chamber body 1 at 5 minutes to 12 minutes in the scope
-2Torr.Other step is identical with the specific embodiment two.
The specific embodiment four: in the step 2 of this embodiment, pumped vacuum systems 3 reached 1 * 10 with the working vacuum degree in the vacuum chamber body 1 at 12 minutes to 15 minutes in the scope
-2Torr.Other step is identical with the specific embodiment two.
Claims (4)
1. vacuum laser welding equipment is characterized in that: the vacuum laser welding equipment comprises that vacuum chamber body (1), workbench (2), pumped vacuum systems (3), three-shaft linkage system (4), industrial monitor (5), laser head (6), optical fiber import seal (7), cable imports sealing ring (8), water cooled pipeline sealing ring (9), optical fiber (10), cable (11), water cooled pipeline (12), numerical control device (13), laser generator (14) and water cooling unit (15);
Workbench (2) is installed on the base plate of vacuum chamber body (1); Three-shaft linkage system (4) is installed on the madial wall of vacuum chamber body (1), and laser head (6) is installed in the three-shaft linkage system (4), and industrial monitor (5) is installed on the laser head (6); Pumped vacuum systems (3) is installed on the lateral wall of vacuum chamber body (1); One end of optical fiber (10) passes vacuum chamber body (1) and is connected with laser head (6), and the other end of optical fiber (10) laser generator (14) outside with placing vacuum chamber body (1) is connected, and an end of cable (11) passes vacuum chamber body (1) and is connected with laser head (6); The other end of cable (11) numerical control device (13) outside with placing vacuum chamber body (1) is connected; One end of water cooled pipeline (12) passes the bottom that vacuum chamber body (1) places laser head (6), and the other end of water cooled pipeline (12) water cooling unit (15) outside with placing vacuum chamber body (1) is connected, is connected through optical fiber importing sealing ring (7) between optical fiber (10) and the vacuum chamber body (1); Importing sealing ring (8) through cable between cable (11) and the vacuum chamber body (1) is connected; Be connected through water cooled pipeline sealing ring (9) between water cooled pipeline (12) and the vacuum chamber body (1), the radius of laser head (6) is less than 10mm, and height is less than 20mm.
2. the method that adopts the described vacuum laser welding equipment of claim 1 to weld, it is characterized in that: the concrete steps of vacuum laser welding method are:
Step 1, workbench (2) is shifted out outside the vacuum chamber body (1); Workpiece to be welded is installed on the workbench (2); Again workpiece to be welded and workbench (2) are together moved in the vacuum chamber body (1), the hatch door of closing vacuum chamber body (1), the leak rate of vacuum chamber body (1) is no more than 0.667Pa/h;
Step 2, start pumped vacuum systems (3), when treating that vacuum in the vacuum chamber body (1) reaches the vacuum that workpiece requires, start laser generator (14), numerical control device (13) and water cooling unit (15), weld; Pumped vacuum systems (3) reached 1 * 10 with the working vacuum degree in the vacuum chamber body (1) at 5 minutes to 15 minutes in the scope
-2Torr, final vacuum 1 * 10
-4Torr;
Step 3, accomplish welding after, inject air to vacuum chamber body (1), treat that air pressure in the vacuum chamber body (1) reaches atmospheric pressure after, the hatch door of open vacuum cabin body (1) takes out workpiece.
3. vacuum laser welding method according to claim 2 is characterized in that: pumped vacuum systems (3) reached 1 * 10 with the working vacuum degree in the vacuum chamber body (1) at 5 minutes to 12 minutes in the scope
-2Torr.
4. vacuum laser welding method according to claim 2 is characterized in that: pumped vacuum systems (3) reached 1 * 10 with the working vacuum degree in the vacuum chamber body (1) at 12 minutes to 15 minutes in the scope
-2Torr.
Priority Applications (1)
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|---|---|---|---|
| CN2012100021916A CN102513702A (en) | 2012-01-05 | 2012-01-05 | Vacuum laser welding equipment and method |
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|---|---|---|---|
| CN2012100021916A CN102513702A (en) | 2012-01-05 | 2012-01-05 | Vacuum laser welding equipment and method |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103323568A (en) * | 2013-06-26 | 2013-09-25 | 哈尔滨工业大学 | Material smelting and welding experimental apparatus under ground microgravity and methods for smelting and welding material under microgravity based on device |
| CN105269147A (en) * | 2015-10-15 | 2016-01-27 | 哈尔滨工业大学 | Three-dimensional vacuum laser machining device and method for carrying out laser machining through device |
| CN105290613A (en) * | 2015-10-30 | 2016-02-03 | 武汉钢铁(集团)公司 | Vacuum welding device and method for preventing laser seam from generating pores |
| CN106112260A (en) * | 2016-08-24 | 2016-11-16 | 江苏中科大港激光科技有限公司 | Laser-beam welding machine with purifier |
| CN106695120A (en) * | 2016-12-23 | 2017-05-24 | 西北工业大学（张家港）智能装备技术产业化研究院有限公司 | Vacuum laser processing device |
| CN109014574A (en) * | 2018-08-24 | 2018-12-18 | 温州大学 | Intelligent Laser welder |
| CN109570722A (en) * | 2018-11-21 | 2019-04-05 | 广西南宁胜祺安科技开发有限公司 | A kind of vacuum welding equipment and its application method |
| CN112091428A (en) * | 2020-09-18 | 2020-12-18 | 宝鸡石油钢管有限责任公司连续油管分公司 | Laser welding device for welding stainless steel pipe |
| CN113894424A (en) * | 2021-11-02 | 2022-01-07 | 哈尔滨工业大学 | Laser polishing system and polishing method under vacuum or multiple atmosphere environment |
| CN114346436A (en) * | 2022-01-17 | 2022-04-15 | 浙江精匠智能科技有限公司 | Vacuum cup vacuumizing equipment and using method thereof |
| CN115488505A (en) * | 2022-09-27 | 2022-12-20 | 哈尔滨工业大学（威海） | Electromagnetic device and method for solving problem of energy shielding of magnesium alloy negative-pressure laser welding |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103323568A (en) * | 2013-06-26 | 2013-09-25 | 哈尔滨工业大学 | Material smelting and welding experimental apparatus under ground microgravity and methods for smelting and welding material under microgravity based on device |
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| CN106695120A (en) * | 2016-12-23 | 2017-05-24 | 西北工业大学（张家港）智能装备技术产业化研究院有限公司 | Vacuum laser processing device |
| CN109014574A (en) * | 2018-08-24 | 2018-12-18 | 温州大学 | Intelligent Laser welder |
| CN109570722A (en) * | 2018-11-21 | 2019-04-05 | 广西南宁胜祺安科技开发有限公司 | A kind of vacuum welding equipment and its application method |
| CN112091428A (en) * | 2020-09-18 | 2020-12-18 | 宝鸡石油钢管有限责任公司连续油管分公司 | Laser welding device for welding stainless steel pipe |
| CN113894424A (en) * | 2021-11-02 | 2022-01-07 | 哈尔滨工业大学 | Laser polishing system and polishing method under vacuum or multiple atmosphere environment |
| CN114346436A (en) * | 2022-01-17 | 2022-04-15 | 浙江精匠智能科技有限公司 | Vacuum cup vacuumizing equipment and using method thereof |
| CN114346436B (en) * | 2022-01-17 | 2022-10-04 | 浙江精匠智能科技有限公司 | Vacuum cup vacuumizing equipment and using method thereof |
| CN115488505A (en) * | 2022-09-27 | 2022-12-20 | 哈尔滨工业大学（威海） | Electromagnetic device and method for solving problem of energy shielding of magnesium alloy negative-pressure laser welding |
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Application publication date: 20120627 |