CN2605955Y - Laser sheet cutting and welding device - Google Patents

Laser sheet cutting and welding device Download PDF

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Publication number
CN2605955Y
CN2605955Y CN 02290609 CN02290609U CN2605955Y CN 2605955 Y CN2605955 Y CN 2605955Y CN 02290609 CN02290609 CN 02290609 CN 02290609 U CN02290609 U CN 02290609U CN 2605955 Y CN2605955 Y CN 2605955Y
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CN
China
Prior art keywords
cutting
welding
laser
shift fork
axis
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Expired - Fee Related
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CN 02290609
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Chinese (zh)
Inventor
胡伦骥
***
汤漾平
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Huazhong University of Science and Technology
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Huazhong University of Science and Technology
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Abstract

A laser sheet cutting and welding device belongs to laser processing technology and is to resolve the problem of high-precision non-deformed laser joining welding of broad sheet metal. The device comprises a Y-axis, a laser process head, a light guide system, a laser, an accessory shelf, a numerical control system, a pallet board locating device, and an aligning joining mechanism. The laser process head is a cutting and welding focusing head, so the device has a cutting and welding switching mechanism. The utility model, compact and economic, can enhance usage rate of laser and can be used for non-deformed laser joining welding of broad sheet metal in the manufacturing field of automobile and construction.

Description

Sheet laser cutting---welding equipment
Technical field
The utility model belongs to laser processing technology, the equipment that particularly utilizes laser that sheet metal is cut, welds.
Background technology
Laser assembly solder metal blanket has the advantages that high weldering is fast, nothing is out of shape, weld seam is narrow and small, joint good and be easy to automation, each main automaker of the world is in coachbuilt body is made, laser assembly solder becomes various topped the blankets of car, whole then punch forming, use material, weight reduction, simplification Sheet Metal Forming Technology to optimize, thus the reduction expense.But, therefore high because the Laser Welding hot spot is tiny, and do not have welding wire and add metal filled slit for linearity and the end face quality requirement of waiting to connect several limits, minimum to guarantee the treating sheet separation, otherwise can't guarantee joint quality.The present method that adopts usually in the world is: with high fine pruning preprocessing, the automobile blanket laser assembly solder system that develops as U.S. VIL company promptly comprises high-precision shearing machine+laser welder, the equipment manufacturing cost costliness before (1) weldering.(2) adopt common shearing machine to process plate company, its technical sophistication costs an arm and a leg.(3) adopt dual-beam frit gap to solve clearance issues, as Canadian AWS company, but need two laser instruments, and must be the YAG laser instrument of available fiber coupling, also increased the equipment input.
Summary of the invention
The utility model proposes a kind of sheet laser cutting---welding equipment, the high accuracy that is used to solve the large format sheet metal does not have distortion laser assembly solder problem.
Sheet laser cutting of the present utility model---welding equipment, comprise Y-axis, laser Machining head, light-conducting system, laser instrument, auxiliary bin and digital control system, auxiliary bin splits both sides, Y-axis below, Y-axis is by mould, servomotor and leading screw, guide rail constitutes, laser instrument passes to the light-conducting system that is positioned on the Y-axis with laser through light path, the light-conducting system light path connects the laser Machining head on the Y-axis, digital control system control in the equipment operation, it is characterized in that: (1) described laser Machining head is cutting---the welding focus head, comprise condenser lens and microscope base, condenser lens is placed on microscope base inner chamber top, the bottom is built-in with the guide cylinder of slip chimeric with it, and cutting nozzles is threaded onto guide cylinder bottom inside spin; (2) between the auxiliary bin, the Y-axis below is provided with the blanket detent mechanism of Driven by Hydraulic Cylinder; (3) blanket detent mechanism end is provided with by what shift fork and shift fork driving mechanism were formed and cuts weldering switching mechanism; (4) auxiliary bin below, blanket detent mechanism both sides be provided with the centering splicing body is made up of left jaw and right jaw, respectively by stepper motor and ball-screw driving; (5) split left and right blanket clamp mechanism in the left and right pincers of centering splicing body, drive by the hydraulic pressure silk.
Described sheet laser cutting---welding equipment, it is further characterized in that cutting---welding focus head guide cylinder endoporus top is followed successively by turbination and thread helix face for conical, endoporus bottom, described cutting nozzles endoporus is conical, cutting nozzles outer surface middle part is for to have two breach around boss, top symmetry, around more than the boss being turbination, size and the turbination match of guide cylinder endoporus bottom.
Described sheet laser cutting---welding equipment, described guide cylinder endoporus bottom can be connected with the gas curtain seat, cutting---and welding focus head microscope base can be connected through the hinge and weld auxiliary tracheae.
Described sheet laser cutting---welding equipment, it further is characterised in that cuts in the weldering switching mechanism: (1) tubular shift fork is placed in guide post, fix by taper pin, there is warp-wise symmetry bossing the shift fork end, its radial distance is corresponding around two breach of boss with cutting nozzles, shift fork is with sleeve outward, and there is the piece that colludes that radial symmetric entad protrudes its end, and colludes the piece radial distance and equates with shift fork bossing radial distance; (2) the shift fork driving mechanism comprises horizontal hydraulic cylinder and vertical hydraulic cylinder, and the piston rod of horizontal hydraulic cylinder promotes tooth bar, tooth bar and the gears engaged that is fixed in guide post, and the piston rod of vertical hydraulic cylinder links to each other with lifter plate, and lifter plate embeds in the annular groove of guide post
Above-mentioned thin plate cutting---welding equipment can be fixed with on the described lifter plate in the axial keyway of feather key, slip embedding sleeve surface.
In the equipment of the present utility model,, avoided the light path switching error, the height-precision of machining locus is improved greatly because the thin plate cutting is adopted same focus lamp and light path thereof with welding.Because same laser Machining head finished at same Working position and cut---the weldering splicing, need not the fine pruning preprocessing, its cutting edges of boards quality reaches the welding requirement fully, not only makes simplified equipment, and has improved the utilization rate of laser instrument.Bad board size of welding, moulding and quality that it is produced reach fully and adopt fine pruning preprocessing, briquetting gap clearance, dual-beam frit gap technology to produce the par of blanket in the world, and want complete equipment more compact, economical.
This equipment can be used in the sheet metal structure manufacturing fields such as automobile, building, and uniform thickness or uniform thickness not, the large format thin plate of material of the same race or not of the same race, coating do not have the distortion welding and make.
Description of drawings
Fig. 1 is the utility model schematic diagram; Fig. 2 is the utility model centering splicing body schematic diagram; Fig. 3 is a cutting-welding focus head schematic diagram; Fig. 4 is for switching shift fork part schematic diagram; Fig. 5 is for switching shift fork driving mechanism schematic diagram; Fig. 6 represents to change the process of cutting nozzles; Fig. 7 represents to load onto the process of cutting nozzles.
The specific embodiment
Explain the specific embodiment of the present utility model below in conjunction with accompanying drawing.Equipment shown in Figure 1 is by slab detent mechanism 1, Y-axis 2, hydraulic system 3, light-conducting system 4, cutting---and welding focus head 5, cut weldering switching mechanism 7, right jaw 6, left jaw 8, blanket clamp mechanism 9, auxiliary bin 10, digital control system 11 and laser instrument 12 and form, the 13rd, slab.
Fig. 2 further describes the utility model blanket centering splicing body, is made up of right jaw 6 and left jaw 8, is driven by stepper motor 14 and ball-screw 15 respectively, is equipped with the right side, left blanket clamp mechanism 9 on right, the left jaw respectively, is driven by hydraulic cylinder 16.
Fig. 3 shows cutting---the detailed structure of welding focus head 5: the outer surface middle part of nozzle 21 has two breach b around symmetry on the boss, nozzle top is orientational cone-shaped surface, symmetry shape two taper pins 22, nozzle 21 is tightened on the helicoid of guide cylinder 24 by taper pin 22, the inner conical surface of its top orientational cone-shaped surface and guide cylinder 24 is closely cooperated, reach sealing effectiveness.The vapour that two semi-rings 23 embed on the guide cylinders 24 cuts in the groove, links to each other with adjusting nut 33 by screw simultaneously, and adjusting nut 33 links to each other with microscope base 25 by screw thread, and straight pin 31 passes in the keyway that microscope base 25 enters guide cylinder 24, the circumferential rotation of restricted guidance tube 4; Rotation adjusting nut 33 can make guide cylinder 24 drive nozzle 21 and fluctuate, thereby the relative position 32 of regulating nozzle 1 bottom aperture and laser focus point is a fastening spiro loop.Condenser lens 26 is fixed in the microscope base 25 by keeper 27, the auxiliary gas jets 36 of auxiliary tracheae 28 of welding and welding is communicated with the auxiliary tracheae seat 29 of welding, the latter is fixed on the microscope base 25 by bearing pin, can rotate around the bearing pin center line, because the effect of heating power spring, fine moment loading when the auxiliary tracheae seat 29 of welding is benefited, stop screw 30 on it is pressed on the microscope base 5, when cutting---when the welding focus head moves to switching position, because block effect, certain space is got out of the way in the auxiliary tracheae seat 29 clockwise deflections of welding, is convenient to nozzle 21 and switches; In case cutting---when the welding focus head left switching position, 9 of the auxiliary tracheae seats of welding broke away from block, were rotated counterclockwise, and homing makes the auxiliary gas jets 36 of welding point to the welding job zone.
Welding protection tracheae 35 is communicated with welding protection gas curtain seat 34, and the latter is communicated with guide cylinder 24, after nozzle 21 is changed, and the demand working protection-gas welding, welding protection gas curtain seat then produces gas curtain, and protection condenser lens 26 is not contaminated.
Fig. 4 represents to cut the switching shift fork part of weldering switching mechanism: shift fork 37 is placed in guide post 38, fixing by location taper pin 39, there is the projection of radial symmetric the shift fork end, and the middle part of nozzle 21 is corresponding around two breach b on the boss among its radial distance and Fig. 3, thereby forms two negative area α of shift fork; Shift fork 37 places are with sleeve 40, and piece 41 is colluded by what screw connected that two radial symmetric entad protrude in its end, and shaft block ring 42 is stuck in moving down of restriction sleeve 40 on the fork 37.From depression angle, the symmetrical bossing of shift fork 37 overlaps with colluding piece 41 usually, promptly the negative area α of shift fork 37 with collude 41 one-tenth 90 ° of angles of piece.Feather key 43 is fixed on the lifter plate of shift fork driving mechanism, embeds in the keyway of sleeve 40 the circumferential rotation of restriction sleeve 40 to be slidingly matched.The annular groove 44 of guide post 38 holds aforementioned lifter plate and embeds.
Fig. 5 promotes tooth bar 48 for the shift fork driving mechanism schematic diagram of piece weldering switching mechanism, the piston rod 46 of horizontal hydraulic cylinder 45 by joint 47, and the letter reciprocating cutter of tooth bar 48 drives guide post 38 for gear 49 by key 50 and shift fork 37 rotates.51 is horizontal limit switch among Fig. 5,52 is horizontal stop screw, 53 is the horizontal hydraulic pressure cylinder housing, the piston rod 55 of vertical hydraulic cylinder 54 links to each other with lifter plate 56, lifter plate 56 embeds in the annular groove 44 of aforementioned guide post 38, can make guide post 38 and shuttle fork 37 and move up and down, 57 are the long limit notes screw that falls, and 58 are the lifting limit switch.
Fig. 6 represents to change the process of laser cutting nozzle.
Shown in Fig. 6 (a), cutting welding focus head moves to switching position, cuts that to arrive at shift fork coaxial with cutting welding focus head, and shift fork begins to do length and moves;
After the rising of Fig. 6 (b) switching shift fork puts in place, shift fork open rise put in place after, bossing on the shift fork is broadcast middle part into nozzle around the boss breach, collude the middle part that piece pass nozzle of cover in the letter is positioned at the middle part of nozzle around protruding top around the boss breach, shift fork is rotated counterclockwise 90 °, the cover letter is subjected to the restriction of feather key, still is in the origin-location;
After Fig. 6 (c) shift fork is rotated counterclockwise and puts in place, two taper pins on the nozzle break away from the thread helix face of guide cylinder endoporus bottom, be in the indentation, there of the both sides symmetry of helicoid, the orientational cone-shaped surface of its top orientational cone-shaped surface and guide cylinder is unclamped, the nozzle middle part is in colluding under the piece on the sleeve around the non-notch position of boss, switches shift fork and begins to do descending motion;
Fig. 6 (d) changes shift fork and descends; the piece that colludes on the sleeve moves down by the non-notch position drive nozzle of nozzle middle part around boss; finish the work of changing the laser cutting nozzle; connect protection-gas welding; welding protection gas curtain seat then produces the protection gas curtain; make condenser lens 6 not contaminated, cutting welding this moment focus head just can be used for welding.
Fig. 7 is a process of loading onto the laser cutting nozzle
Shown in Fig. 7 (a), cutting welding focus head moves to switching position, it is coaxial with cutting welding focus head to switch shift fork, and two taper pins on the nozzle are aimed at the indentation, there of cutting welding focus head guide cylinder endoporus bottom helicoids, switches group shift fork and opens mother and do ascending motion.
Fig. 7 (b), after the switching shift fork was raised to the position, two taper pins on the nozzle passed the breach of cutting welding focus head guide cylinder endoporus bottom helicoid, are in helicoid and screw in height, and shift fork turns clockwise 90 °, and sleeve is subjected to the restriction of feather key, still is in the origin-location;
After Fig. 7 (c) shift fork turns clockwise and puts in place, two taper pins on the nozzle screw on the thread helix face of guide cylinder endoporus bottom, under the effect of helicoid active force, the location inner conical surface of nozzle top orientational cone-shaped surface and guide cylinder closely cooperates, reach sealing effectiveness, the gap portions around boss at nozzle middle part is in colluding under the piece on the sleeve, switches shift fork and begins to do descending motion;
Fig. 7 (d) switches shift fork and descends, and the piece that colludes on the sleeve passes the nozzle middle part and moves down around the breach of boss, has finished the work of loading onto the laser cutting nozzle, closes protection-gas welding, opens the auxilliary gas of cutting, and cutting welding this moment focus head just can be used for cutting.
When the utility model was used for the welding of coachbuilt body base plate, analysed material and can be zinc-plated automotive sheet at the end, and thickness of slab 0.8mm is welded into 3 meters * 1.9 meters significantly two base plates by two 1.6 meters * 1.9 meters plates, and the welding width is 1.9 meters.When cutting edge with laser, CO 21.5 kilowatts of laser powers, 4.5 meters/minute of cutting speeds adopt oxygen as Cutting Gas, gas pressure 4.8Bar; During laser weld, CO 22.0 kilowatts of laser powers, speed of welding make for 5 meters/minute protects the gas argon gas, and flow makes for 25 liters/minute and protects gas curtain compressed air.

Claims (5)

1. sheet laser cutting---welding equipment, comprise that Y-axis, laser Machining head, light-conducting system, laser instrument, auxiliary bin and digital control system, auxiliary bin split both sides, Y-axis below, Y-axis is made of mould, servomotor and leading screw, guide rail, laser instrument passes to the light-conducting system, the light-conducting system light path that are positioned on the Y-axis with laser through light path and connects the laser Machining head on the Y-axis, digital control system control in the equipment operation is characterized in that:
(1) described laser Machining head is cutting---the welding focus head, comprise condenser lens and microscope base, and microscope base inner chamber top placement condenser lens, bottom are built-in with the guide cylinder of slip chimeric with it, and cutting nozzles is threaded onto guide cylinder bottom inside spin;
(2) between the auxiliary bin, the Y-axis below is provided with the blanket detent mechanism of Driven by Hydraulic Cylinder;
(3) blanket detent mechanism end is provided with by what shift fork and shift fork driving mechanism were formed and cuts weldering switching mechanism;
(4) auxiliary bin below, blanket detent mechanism both sides be provided with the centering splicing body is made up of left jaw and right jaw, respectively by stepper motor and ball-screw driving;
(5) split left and right blanket clamp mechanism in the left and right pincers of centering splicing body, drive by the hydraulic pressure silk.
2. sheet laser cutting as claimed in claim 1---welding equipment, it is characterized in that cutting---welding focus head guide cylinder endoporus top is followed successively by turbination and thread helix face for conical, endoporus bottom, described cutting nozzles endoporus is conical, cutting nozzles outer surface middle part is for to have two breach around boss, top symmetry, around more than the boss being turbination, size and the turbination match of guide cylinder endoporus bottom.
3. sheet laser cutting as claimed in claim 2---welding equipment is characterized in that described guide cylinder endoporus bottom is connected with the gas curtain seat, cutting---welding focus head microscope base is connected through the hinge and welds auxiliary tracheae.
4. as claim 2 or 3 described sheet laser cutting---welding equipments, it is characterized in that cutting in the weldering switching mechanism:
(1) the tubular shift fork is placed in guide post, fix by taper pin, there is warp-wise symmetry bossing the shift fork end, its radial distance is corresponding around two breach of boss with cutting nozzles, shift fork is with sleeve outward, there is the piece that colludes that radial symmetric entad protrudes its end, and colludes the piece radial distance and equates with shift fork bossing radial distance;
(2) the shift fork driving mechanism comprises horizontal hydraulic cylinder and vertical hydraulic cylinder, and the piston rod of horizontal hydraulic cylinder promotes tooth bar, tooth bar and the gears engaged that is fixed in guide post, and the piston rod of vertical hydraulic cylinder links to each other with lifter plate, and lifter plate embeds in the annular groove of guide post.
5. sheet laser cutting as claimed in claim 4---welding equipment is in the axial keyway that it is characterized in that being fixed with feather key on the described lifter plate, sliding the embedding sleeve surface.
CN 02290609 2002-12-24 2002-12-24 Laser sheet cutting and welding device Expired - Fee Related CN2605955Y (en)

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Application Number Priority Date Filing Date Title
CN 02290609 CN2605955Y (en) 2002-12-24 2002-12-24 Laser sheet cutting and welding device

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Application Number Priority Date Filing Date Title
CN 02290609 CN2605955Y (en) 2002-12-24 2002-12-24 Laser sheet cutting and welding device

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100411810C (en) * 2004-11-08 2008-08-20 三菱电机株式会社 Substrate positioning device
CN101890576A (en) * 2010-08-19 2010-11-24 上海市激光技术研究所 Stainless steel or nickel sheet laser tailor-welding alignment clamping device and method
CN102122143A (en) * 2010-09-15 2011-07-13 苏州凌创电子***有限公司 Laser welding control system for cardiac pulse aid
CN102209604A (en) * 2008-11-10 2011-10-05 丹尼尔和科菲森梅克尼齐有限公司 Welding system of metal strips
CN101472703B (en) * 2006-06-23 2014-04-09 乌德诺拉股份公司 Method of and device for butt welding without weld filler materials thin metal sheets using clamping pressing devices, at least one pressing element being suitable for applying two or more distinct pr
CN103737229A (en) * 2013-12-17 2014-04-23 攀钢集团工程技术有限公司 Fixture and method for welding a plurality of layers of metal sheets
CN104646836A (en) * 2015-02-05 2015-05-27 无为县环江铜业有限公司 Large sheet scrap copper decomposing device
CN111250868A (en) * 2019-12-26 2020-06-09 苏州乔丰精密机械有限公司 High-precision aluminum alloy laser self-melting welding process
CN113909704A (en) * 2021-09-29 2022-01-11 江苏兴达智能制造有限公司 Square tube cutting auxiliary device, laser cutting machine using same and cutting operation method
CN117464202A (en) * 2023-12-27 2024-01-30 苏州禧屋新材料科技股份有限公司 Cutting device for composite board

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100411810C (en) * 2004-11-08 2008-08-20 三菱电机株式会社 Substrate positioning device
CN101472703B (en) * 2006-06-23 2014-04-09 乌德诺拉股份公司 Method of and device for butt welding without weld filler materials thin metal sheets using clamping pressing devices, at least one pressing element being suitable for applying two or more distinct pr
CN102209604A (en) * 2008-11-10 2011-10-05 丹尼尔和科菲森梅克尼齐有限公司 Welding system of metal strips
CN101890576A (en) * 2010-08-19 2010-11-24 上海市激光技术研究所 Stainless steel or nickel sheet laser tailor-welding alignment clamping device and method
CN101890576B (en) * 2010-08-19 2012-11-21 上海市激光技术研究所 Stainless steel or nickel sheet laser tailor-welding alignment clamping device and method
CN102122143A (en) * 2010-09-15 2011-07-13 苏州凌创电子***有限公司 Laser welding control system for cardiac pulse aid
CN103737229A (en) * 2013-12-17 2014-04-23 攀钢集团工程技术有限公司 Fixture and method for welding a plurality of layers of metal sheets
CN103737229B (en) * 2013-12-17 2015-12-02 攀钢集团工程技术有限公司 The method of fixture and welding multilayer metal foil
CN104646836A (en) * 2015-02-05 2015-05-27 无为县环江铜业有限公司 Large sheet scrap copper decomposing device
CN111250868A (en) * 2019-12-26 2020-06-09 苏州乔丰精密机械有限公司 High-precision aluminum alloy laser self-melting welding process
CN111250868B (en) * 2019-12-26 2022-08-23 深圳市万顺兴科技有限公司 High-precision aluminum alloy laser self-melting welding process
CN113909704A (en) * 2021-09-29 2022-01-11 江苏兴达智能制造有限公司 Square tube cutting auxiliary device, laser cutting machine using same and cutting operation method
CN117464202A (en) * 2023-12-27 2024-01-30 苏州禧屋新材料科技股份有限公司 Cutting device for composite board
CN117464202B (en) * 2023-12-27 2024-04-16 苏州禧屋新材料科技股份有限公司 Cutting device for glass fiber reinforced plastic composite board

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