CN101125393A - Gas protecting device used for laser material processing - Google Patents

Gas protecting device used for laser material processing Download PDF

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Publication number
CN101125393A
CN101125393A CN 200710132642 CN200710132642A CN101125393A CN 101125393 A CN101125393 A CN 101125393A CN 200710132642 CN200710132642 CN 200710132642 CN 200710132642 A CN200710132642 A CN 200710132642A CN 101125393 A CN101125393 A CN 101125393A
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CN
China
Prior art keywords
plate
laser
processing
panel
workbench
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN 200710132642
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Chinese (zh)
Inventor
徐九华
傅玉灿
杨志波
徐鸿钧
苏宏华
肖冰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nanjing University of Aeronautics and Astronautics
Original Assignee
Nanjing University of Aeronautics and Astronautics
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nanjing University of Aeronautics and Astronautics filed Critical Nanjing University of Aeronautics and Astronautics
Priority to CN 200710132642 priority Critical patent/CN101125393A/en
Publication of CN101125393A publication Critical patent/CN101125393A/en
Pending legal-status Critical Current

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Abstract

The present invention relates to a gas protecting equipment used for the laser material processing, which belongs to the gas protecting equipment. The gas protecting equipment comprises a protecting cavity, a vacuum pump connected with the protecting cavity and a power equipment connected with a lead screw. The protecting cavity consists of an upper top plate (7), a lower bottom plate (2), the left, right, front and back side plates( 13, 3, 17, 18), a working table (8), a guide rail (19) and a lead screw (4). The upper top plate is provided with a laser incidence window (9), and the two side plates of the left and right are provided with the air inlets (12,6), and the back side plate is provided with a bleeding point (11) used for drawing the vacuum and connected with the vacuum pump. The workpiece is positioned on the working table (8) in the protecting cavity, and the working table moves in a left and right manner under the driving of the lead screw, and the lead screw is rotated driven by the power equipment (15). The power equipment consists of a step motor and a reducer and is connected with the lead screw. The present invention has a simple structure, and is beneficial to spreading. The present invention can reliably enable the gas to be transported to the processing area of the workpiece waiting for processing in a low cost, thereby realizing a high processing quality.

Description

The gas shield device that is used for Materialbearbeitung mit Laserlicht
Technical field
The present invention relates to a kind of Materialbearbeitung mit Laserlicht efficient gas protective device that is used for, be specially adapted to the manufacture fields such as laser melting coating, laser sintering (SLS) and laser braze welding of the metal powder material (as alloy powders such as Mg base, Ag base, Cu bases) of very easily oxidation.
Background technology
From high power CO in mid-term nineteen sixties 2After laser instrument and YAG laser instrument come out, people just begin the application of exploratory development laser in materials processing, laser processing technology has efficient height, Functionality, quality and appealing design, easily is automated control, can realizes characteristics such as flexible processing and Intelligent Machining, particularly the laser melting coating of metal material, laser sintering (SLS) and laser braze welding technology become the important directions of 21 century Laser Processing in the extensive use in the contour microtechnic of Aero-Space, automobile, shipping industry, weapon industry and nuclear industry field.
At present; at laser melting coating; in laser sintering (SLS) and the laser braze welding processing; for the protection workpiece is not subjected to atmospheric effect or work in-process that the workpiece machining area is applied extraordinary protective atmosphere; the method that adopts laser coaxial to blow blows to finished surface with inert gas (or required special gas) mostly; but this method is poor effect in actual applications; tend to components and parts with powder or the shaping machining position of blowing off; and the purity of protective atmosphere in being difficult to guarantee to process; particularly easily the metal dust of oxidation adopts the method for coaxial air blowing can't realize effective processing basically in laser processing procedure.
Summary of the invention
The object of the present invention is to provide a kind of device especially for the cladding of easy oxidation metal powder laser, laser sintering (SLS) and laser braze welding.
A kind of gas shield device that is used for Materialbearbeitung mit Laserlicht, it is characterized in that, comprise the protection chamber, pressure vacuum gauge, vavuum pump, power set, described protection chamber comprises lower shoe, right plate, left plate, upper plate, front apron, back side panel, workbench, leading screw, guide rail, wherein by lower shoe, upper plate, right plate, left plate, front apron, back side panel interconnects squarely protection cavity and is fixed on the ribs, workbench places square protection cavity inner chamber, be placed on two parallel guide rails, two parallel guide rails are installed in the base plate inboard, and the leading screw that is used to drive movable workbench links to each other with workbench; Described power set comprise stepper motor and decelerator, and stepper motor and decelerator link to each other with leading screw by shaft coupling; Pressure vacuum gauge links to each other with pressure vacuum gauge connector on the upper plate, and vavuum pump links to each other with bleeding point on the back side panel.
Described right plate has air inlet and puts, gets the window of workpiece.
Described left plate has air inlet.
Described upper plate has the laser incidence window.
Described back side panel has the bleeding point that links to each other with vavuum pump.
Before processing; at first utilize vavuum pump vacuumizing pore and will protect and be pumped into certain vacuum in the chamber on back side panel; then inert gas is input in the protection chamber around the workpiece from injection well, thereby forms the circulating type protective atmosphere and the special requirement that realizes processing.Can be static-free according to gas shield device of the present invention; reliably and cheaply realize a kind of and the laser melting coating that requires corresponding metal dust, sintering and soldering that improve constantly, particularly the easily processing of the metal dust (as alloy powders such as Mg base, Ag base, Cu bases) of oxidation.
Description of drawings
Fig. 1, be used for the gas shield device structural representation of Materialbearbeitung mit Laserlicht,
Fig. 2 is the A-A schematic cross-section of Fig. 1.
The label title of Fig. 1, Fig. 2: 1, ribs, 2, lower shoe, 3, right plate, 4, leading screw, 5, put, get the workpiece window, 6, right air inlet, 7, upper plate, 8, workbench, 9, the laser incidence window, 10, bleeding point 11, pressure vacuum gauge connector, 12, left air inlet, 13, left plate, 14, shaft coupling, 15, power set (stepper motor and decelerator) 16, workbench and leading screw attaching nut, 17, front baffle board (observation window), 18, back side panel, 19, guide rail
The specific embodiment
Below in conjunction with accompanying drawing, introduce content of the present invention in detail.
Fig. 1 and 2 is a gas shield device structural representation of the present invention; the protection chamber is made up of lower shoe 2, right plate 3, back side panel 18, left plate 13, front apron 17, upper plate 7, workbench 8, guide rail 19 and leading screw 4; leading screw links to each other with the power set of protection outside the chamber, and power set are made up of stepper motor, decelerator.Workbench 8 is placed on the guide rail 19; and link to each other with leading screw 4 by nut 16; guide rail 19 and lower shoe 2 are connected by screw; leading screw 4 links to each other with power set 15 through shaft coupling 14; each side plate in protection chamber closely is connected with lower shoe with upper plate by screw and fluid sealant; having bleeding point 10 at protection chamber back side panel links to each other with vavuum pump; be used to extract the air in the protection chamber; the upper plate in protection chamber has laser incidence window 9 and pressure vacuum gauge connecting hole 11 (being used to observe the gas pressure in the protection chamber); on right plate, have and put; get workpiece window 5; be used for the process place work piece; left side plate respectively has air admission hole 6; 12; be used for protective gas is introduced in the protection chamber, continue to be input in the protection chamber, so the inner environment that will keep protective gas of whole device in process with certain flow.

Claims (5)

1. gas shield device that is used for Materialbearbeitung mit Laserlicht, it is characterized in that, comprise the protection chamber, pressure vacuum gauge, vavuum pump, power set, described protection chamber comprises lower shoe (2), right plate (3), left plate (13), upper plate (7), front apron (17), back side panel (18), workbench (8), leading screw (4), guide rail (19), wherein by lower shoe (2), upper plate (7), right plate (3), left plate (13), front apron (17), back side panel (18) interconnects squarely protection cavity and is fixed on the ribs (1), workbench (8) places square protection cavity inner chamber, be placed on two parallel guide rails (19), two parallel guide rails (19) are installed in base plate (2) inboard, and the leading screw (4) that is used to drive movable workbench links to each other with workbench (8); Described power set comprise stepper motor and decelerator (15), and stepper motor and decelerator (15) link to each other with leading screw (4) by shaft coupling (14); Pressure vacuum gauge links to each other with pressure vacuum gauge connector (11) on the upper plate (7), and vavuum pump links to each other with bleeding point (10) on the back side panel (18).
2. the gas shield device that is used for Materialbearbeitung mit Laserlicht as claimed in claim 1 is characterized in that right plate (3) has air inlet (6) and puts, gets the window (5) of workpiece.
3. as by right 1 or the 2 described gas shield devices that are used for Materialbearbeitung mit Laserlicht, it is characterized in that left plate (13) has air inlet (12).
4. as right 1 or the 2 described gas shield devices that are used for Materialbearbeitung mit Laserlicht, it is characterized in that upper plate (7) has laser incidence window (9).
5. as right 1 or the 2 described gas shield devices that are used for Materialbearbeitung mit Laserlicht, it is characterized in that back side panel (18) has the bleeding point (11) that links to each other with vavuum pump.
CN 200710132642 2007-09-18 2007-09-18 Gas protecting device used for laser material processing Pending CN101125393A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200710132642 CN101125393A (en) 2007-09-18 2007-09-18 Gas protecting device used for laser material processing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200710132642 CN101125393A (en) 2007-09-18 2007-09-18 Gas protecting device used for laser material processing

Publications (1)

Publication Number Publication Date
CN101125393A true CN101125393A (en) 2008-02-20

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200710132642 Pending CN101125393A (en) 2007-09-18 2007-09-18 Gas protecting device used for laser material processing

Country Status (1)

Country Link
CN (1) CN101125393A (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101362254B (en) * 2008-09-12 2010-09-08 大连理工大学 Laser processing zone physical state regulation method and device
CN101905381A (en) * 2010-07-05 2010-12-08 大连理工大学 Microstructure-type excimer laser delaminated processing method and device of ceramic material sealing ring
CN103212867A (en) * 2012-01-19 2013-07-24 昆山思拓机器有限公司 High-precision flattening and shock absorbing mechanism for thin steel sheet
CN105618907A (en) * 2016-03-07 2016-06-01 山东科技大学 Remote-control automatic adjustment device for submerged-arc welding
CN106148944A (en) * 2015-04-17 2016-11-23 中国科学院沈阳自动化研究所 A kind of large titanium alloy part laser repairing equipment
CN106271060A (en) * 2016-08-31 2017-01-04 西安优耐特容器制造有限公司 A kind of thin-walled tantalum pipe and the method for laser welding of thin-walled iron-nickel alloy pipe
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
CN109414785A (en) * 2016-06-07 2019-03-01 萨奥有限公司 Lathe for built-up welding
WO2020019862A1 (en) * 2018-07-23 2020-01-30 杭州纤纳光电科技有限公司 Laser scriber apparatus for production line, and method for using same
CN110877307A (en) * 2019-07-17 2020-03-13 河南理工大学 Grinding wheel device for laser sintering
CN111360417A (en) * 2020-04-22 2020-07-03 中山汉通激光设备有限公司 Laser gas-assisted processing method

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101362254B (en) * 2008-09-12 2010-09-08 大连理工大学 Laser processing zone physical state regulation method and device
CN101905381A (en) * 2010-07-05 2010-12-08 大连理工大学 Microstructure-type excimer laser delaminated processing method and device of ceramic material sealing ring
CN103212867A (en) * 2012-01-19 2013-07-24 昆山思拓机器有限公司 High-precision flattening and shock absorbing mechanism for thin steel sheet
CN103212867B (en) * 2012-01-19 2016-08-31 昆山思拓机器有限公司 One stalloy Zhang Ping shock absorbing mechanism in high precision
CN106148944B (en) * 2015-04-17 2018-07-31 中国科学院沈阳自动化研究所 A kind of large titanium alloy part laser repairing equipment
CN106148944A (en) * 2015-04-17 2016-11-23 中国科学院沈阳自动化研究所 A kind of large titanium alloy part laser repairing equipment
CN105618907A (en) * 2016-03-07 2016-06-01 山东科技大学 Remote-control automatic adjustment device for submerged-arc welding
CN109414785A (en) * 2016-06-07 2019-03-01 萨奥有限公司 Lathe for built-up welding
CN106271060A (en) * 2016-08-31 2017-01-04 西安优耐特容器制造有限公司 A kind of thin-walled tantalum pipe and the method for laser welding of thin-walled iron-nickel alloy pipe
CN106271060B (en) * 2016-08-31 2018-04-20 西安优耐特容器制造有限公司 A kind of method for laser welding of thin-walled tantalum pipe and thin-walled iron-nickel alloy pipe
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
WO2020019862A1 (en) * 2018-07-23 2020-01-30 杭州纤纳光电科技有限公司 Laser scriber apparatus for production line, and method for using same
CN110877307A (en) * 2019-07-17 2020-03-13 河南理工大学 Grinding wheel device for laser sintering
CN111360417A (en) * 2020-04-22 2020-07-03 中山汉通激光设备有限公司 Laser gas-assisted processing method

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