CN103008893B - Laser tailor welding method for stainless steel plate and fixing device for laser tailor welding - Google Patents
Laser tailor welding method for stainless steel plate and fixing device for laser tailor welding Download PDFInfo
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- CN103008893B CN103008893B CN201210586070.0A CN201210586070A CN103008893B CN 103008893 B CN103008893 B CN 103008893B CN 201210586070 A CN201210586070 A CN 201210586070A CN 103008893 B CN103008893 B CN 103008893B
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Abstract
Aiming at laser welding of a stainless steel plate, the invention discloses a laser welding method for the stainless steel plate. the laser welding method comprises the following steps: 1, putting the to-be-welded stainless steel plate on a welding fixture and then fixing and tightening the to-be-welded stainless steel plate; 2, arranging a dual-roller pinch roller on the front side of the stainless steel plate, so as to enable a butt seam to locate between two pinch rollers of the dual-roller pinch roller; 3, arranging a laser beam on the front side of the stainless steel plate and behind the dual-roller pinch roller; 4, arranging a lower compression roller on the back side of the stainless steel plate and behind the laser beam, and enabling the lower compression roller to press against a weld joint welded by the laser beam upwards; 5, arranging an upper compression roller on the front side of the stainless steel plate and behind the lower compression roller, and enabling the upper compression roller to roll the weld joint welded by the laser beam downwards.
Description
Technical field
The present invention relates to a kind of stainless steel welding technology field, be specifically related to a kind of laser assembly solder method and fixture of corrosion resistant plate.
Background technology
Laser assembly solder technology has energy-conservation loss of weight, improves the globality of car, reduces the advantage of the quantity of mould, and can greatly enhance productivity, and saves a large amount of labours.China only has several very few tailor welded production lines at present, is difficult to satisfy the demands.Therefore high-quality welding is also very urgent.
In laser weld, the gap that plate docks with plate and the surface state of butt joint interface, have vital impact to moulding and the performance of welding.Current research both domestic and external concentrates in the research of welding procedure, but on we can transfer to research emphasis to enhance productivity.Before welding, tailor welded is directly carried out to the geomery that laser cutting goes out to need, then directly carry out laser weld.And for laser assembly solder, while producing the main reason in gap between its welding work pieces and be the current tool that is installed for being installed of large plate, can not effectively compress welding work pieces surface, thereby cannot avoid because plate surface is not the complete smooth misalignment that produces, thereby strengthen the long-living of gap, and after welding, easily produce undercut, and due to the effect of thermal stress, between two boards material, still can produce perk and produce misalignment.
Summary of the invention
In order to solve the quality problems that produce in above-mentioned actual production, the laser weld that the present invention is directed to corrosion resistant plate has proposed following technical scheme:
The present invention proposes a kind of welded plate fixture for laser assembly solder, it comprises:
Weld jig, it is for fixedly stepping up described welded plate;
Two-wheel contact roller, the front that it is arranged in welded plate, makes abutment joint on welded plate be located thereon the centre of two contact rollers;
Lower compression roller, the back side that it is arranged in welded plate, is positioned at the back lower place of described two-wheel contact roller, for top pressure welding seam upwards;
Upper pressure roller, the front that it is arranged in welded plate, is positioned at the back upper place of described lower compression roller;
Wherein, laser beam, from described welded plate front, welds abutment joint at described two-wheel contact roller rear.
A kind of laser assembly solder method that the invention allows for welded plate, it comprises:
Step 1, welded plate is positioned on weld jig and is fixedly stepped up;
Step 2, at the positive two-wheel contact roller of arranging of welded plate, abutment joint is positioned in the middle of two contact rollers of described two-wheel contact roller;
Step 3, laser beam arrangement are in the welded plate front at described two-wheel contact roller rear;
Step 4, at laser beam rear, the welded plate back side arranges lower compression roller, described lower compression roller upwards pushes up presses the weld seam crossed through LASER BEAM WELDING;
Step 5, at described lower compression roller rear, welded plate front cloth is set up pressure roller, the weld seam that the downward roll extrusion of described upper pressure roller is crossed through LASER BEAM WELDING.
By above-mentioned welding method, can enhance productivity, obviously reduce the butt-joint clearance of workpiece, and prevent the post welding distortion of stainless steel welding plate, improve the presentation quality of weld seam, do not need through postwelding machining, directly can meet instructions for use.
Brief description of the drawings
Fig. 1 is the structural representation for the fixture of the welded plate of laser assembly solder in the present invention;
Fig. 2 is the left view of the structural representation shown in Fig. 1;
Fig. 3 is the structural representation of the two-wheel contact roller in described fixture;
Fig. 4 is the structural representation of the lower compression roller in described fixture.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with specific embodiment, and with reference to accompanying drawing, the present invention is described in more detail.
The invention discloses a kind of welded plate fixture of the welded plate for laser assembly solder.As illustrated in fig. 1 and 2, welded plate 1 is positioned on weld jig and fixedly steps up; Welded plate 1 front is furnished with two-wheel contact roller 2, makes abutment joint be positioned at the centre of two contact rollers 13 of described two-wheel contact roller 2; Laser beam 3 is arranged in welded plate 1 front at described two-wheel contact roller 2 rears; At laser beam 3 rears, welded plate 1 back side is furnished with lower compression roller 4, and described lower compression roller 4 upwards pushes up presses the weld seam welding through laser beam 3; At described lower compression roller 4 rears, welded plate 1 front is furnished with pressure roller 5, the weld seam that the downward roll extrusion of described upper pressure roller 5 was welded through laser beam 3.Wherein, described welded plate can be corrosion resistant plate.
As shown in Figure 3, described two-wheel contact roller 2 is mainly by vertical tube 6, spring 7, lower piston plate 8, piston column 11, transverse axis 12, two contact rollers 13, extension spring 16, block 10, upper piston plate 9, threaded rod 14, handle 15 forms, and described vertical tube 6 is fixedly attached on a lathe, and described spring 7 is placed in described vertical tube 6, and spring 7 top and the bottom are respectively to upper piston plate 9, lower piston plate 8 is exerted pressure, the lower piston plate 8 being pressed is fixedly installed on block 10 blocks on vertical tube 6 inwalls, lower piston plate 8 bottoms are fixedly connected with piston column 11, piston column 11 bottoms are fixedly attached to transverse axis 12, transverse axis 12 two ends connect two contact rollers 13, described vertical tube 6 is with being connected with two extension springs 16 between transverse axis 12, described upper piston plate 9 is only supported by threaded rod 14, described threaded rod 14 connects with described vertical tube 6 by screw thread, described threaded rod 14 is fixedly attached to handle 15, by handle described in turn 15, can make upper piston plate 9 upwards or move down, thereby reducing or increase the pressure of described spring 7.
The formation of described upper pressure roller and lower compression roller is identical, as shown in Figure 4, mainly by vertical tube, spring, lower piston plate, piston column, support bar 19, lateral shaft 18, pressure roller 17, block, upper piston plate, threaded rod, handle composition, described vertical tube is fixedly attached on a lathe, described spring is placed in described vertical tube, spring top and the bottom are respectively to upper piston plate, lower piston plate is exerted pressure, the lower piston plate being pressed is fixedly installed on the block block on vertical tube inwall, lower piston plate bottom is fixedly connected with piston column, piston column bottom symmetry be fixedly connected with two support bars 19, the support bar 19 ends lateral shaft 18 that is spirally connected, in the middle of lateral shaft 18, be connected with pressure roller 17, described upper piston plate is only supported by threaded rod, described threaded rod connects with described vertical tube by screw thread, described threaded rod is fixedly attached to handle, by handle described in turn, can make upper piston plate upwards or move down, thereby regulate the pressure of described spring, the same pressure roller of contact roller of described two-wheel contact roller and the pressure roller 17 of lower compression roller are quartzy emery wheel, described laser beam oblique incidence, incidence angle is 15 degree.
When according to the thick corrosion resistant plate of above welding method welding 8-20mm, laser instrument can be selected CO2 laser instrument, especially in the time that stainless steel thickness of slab is 15-16mm, and best results.Now, can select described upper pressure roller and lower compression roller distance is in the horizontal direction 1cm, and this distance adjusts accordingly according to experiment situation; Described two-wheel contact roller can be elected 2cm as with the distance of the horizontal direction between laser beam, and this distance adjusts accordingly according to experiment situation; Described upper pressure roller can be elected 2cm as with laser beam distance in the horizontal direction;
In the time of the thick corrosion resistant plate according to above welding method welding 0.5-10mm, described laser instrument can be selected ND:YAG laser instrument, especially in the time of welding 8mm corrosion resistant plate, and best results.Described upper pressure roller and lower compression roller distance are in the horizontal direction for can select about 5cm, and this distance can adjust accordingly according to experiment situation; Described two-wheel contact roller can be selected 6cm with the distance of the horizontal direction between laser beam, and this distance can adjust accordingly according to experiment situation; Described upper pressure roller can be selected 5cm with laser beam distance in the horizontal direction, and this distance adjusts accordingly according to experiment situation.
When according to the thick corrosion resistant plate of above welding method welding 0.5-12mm, described laser instrument can be selected optical fiber laser, especially in the time that corrosion resistant plate thickness is 5mm, and welding effect the best.Described upper pressure roller and lower compression roller distance in the horizontal direction can be 3cm, and this distance adjusts accordingly according to experiment situation; Described two-wheel contact roller can be 3cm with the distance of the horizontal direction between laser beam, and this distance adjusts accordingly according to experiment situation; Described upper pressure roller can be 3cm with laser beam distance in the horizontal direction, and this distance adjusts accordingly according to experiment situation.
The above-mentioned welding method proposing by the present invention, can enhance productivity, and obviously reduces the butt-joint clearance of workpiece, and prevents the post welding distortion of stainless steel welding plate, improves the presentation quality of weld seam, does not need through postwelding machining, directly can meet instructions for use.
Above-described specific embodiment; object of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the foregoing is only specific embodiments of the invention; be not limited to the present invention; within the spirit and principles in the present invention all, any amendment of making, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (8)
1. for a welded plate fixture for laser assembly solder, it comprises:
Weld jig, it is for fixedly stepping up described welded plate;
Two-wheel contact roller, the front that it is arranged in welded plate, makes abutment joint on welded plate be located thereon the centre of two contact rollers;
Lower compression roller, the back side that it is arranged in welded plate, is positioned at the back lower place of described two-wheel contact roller, for top pressure welding seam upwards;
Upper pressure roller, the front that it is arranged in welded plate, is positioned at the back upper place of described lower compression roller;
Wherein, laser beam, from described welded plate front, welds abutment joint at described two-wheel contact roller rear, described two-wheel contact roller comprises: vertical tube, spring, lower piston plate, piston column, transverse axis, two contact rollers, extension spring, block, upper piston plate, threaded rod, handle, wherein, described vertical tube is fixedly attached on lathe, described spring is placed in described vertical tube, its top and the bottom are respectively to upper piston plate, lower piston plate is exerted pressure, the lower piston plate being pressed is fixedly installed on the described block block on vertical tube inwall, lower piston plate bottom is fixedly connected with piston column, piston column bottom is fixedly attached to transverse axis, transverse axis two ends connect two contact rollers, between described vertical tube and transverse axis, be connected with two extension springs, described upper piston plate is only supported by threaded rod, described threaded rod lower end is connected with described vertical tube by screw thread, described threaded rod upper end is fixedly attached to handle, by handle described in turn, make upper piston plate upwards or move down, thereby reduce or increase the pressure of described spring.
2. device as claimed in claim 1, is characterized in that, the formation of described upper pressure roller and lower compression roller is identical, comprises vertical tube, spring, lower piston plate, piston column, support bar, lateral shaft, pressure roller, block, upper piston plate, threaded rod, handle, wherein said vertical tube is fixedly attached on lathe, described spring is placed in described vertical tube, spring top and the bottom are respectively to upper piston plate, lower piston plate is exerted pressure, the lower piston plate being pressed is fixedly installed on the block block on vertical tube inwall, lower piston plate bottom is fixedly connected with piston column, piston column bottom symmetry be fixedly connected with two support bars, described two support bar two ends lateral shaft that is spirally connected, in the middle of lateral shaft, connect pressure roller, described upper piston plate is only supported by threaded rod, described threaded rod bottom is connected with described vertical tube by screw thread, described threaded rod top is fixedly attached to handle, by handle described in turn, make upper piston plate upwards or move down, thereby regulate the pressure of described spring.
3. device as claimed in claim 1, is characterized in that, two the same pressure rollers of contact roller of described two-wheel contact roller and the pressure roller of lower compression roller are quartzy emery wheel; Described laser beam oblique incidence, incidence angle is 15 degree; Described welded plate is corrosion resistant plate.
4. utilize welded plate fixture as claimed in claim 1 to realize a laser assembly solder method for welded plate, it comprises:
Step 1, welded plate is positioned on weld jig and is fixedly stepped up;
Step 2, at the positive two-wheel contact roller of arranging of welded plate, abutment joint is positioned in the middle of two contact rollers of described two-wheel contact roller;
Step 3, laser beam arrangement are in the welded plate front at described two-wheel contact roller rear;
Step 4, at laser beam rear, the welded plate back side arranges lower compression roller, described lower compression roller upwards pushes up presses the weld seam crossed through LASER BEAM WELDING;
Step 5, at described lower compression roller rear, welded plate front cloth is set up pressure roller, the weld seam that the downward roll extrusion of described upper pressure roller is crossed through LASER BEAM WELDING.
5. method as claimed in claim 4, is characterized in that, described welded plate is corrosion resistant plate.
6. method as claimed in claim 5, is characterized in that, when the corrosion resistant plate that is 8～20mm, selects CO2 laser instrument to carry out laser weld at throat thickness, and described upper pressure roller and lower compression roller distance are in the horizontal direction selected 1cm; Described two-wheel contact roller is selected 2cm with the distance of the horizontal direction between laser beam; Described upper pressure roller is selected 2cm with laser beam distance in the horizontal direction.
7. method as claimed in claim 5, is characterized in that, when the corrosion resistant plate that is 0.5～10mm, selects ND:YAG laser instrument to carry out laser weld at throat thickness, and described upper pressure roller and lower compression roller distance are in the horizontal direction selected 5cm; Described two-wheel contact roller is selected 6cm with the distance of the horizontal direction between laser beam; Described upper pressure roller is selected 5cm with laser beam distance in the horizontal direction.
8. method as claimed in claim 5, is characterized in that, when the corrosion resistant plate that is 0.5～12mm, selects optical fiber laser to carry out laser weld at throat thickness, and described upper pressure roller and lower compression roller distance are in the horizontal direction selected 3cm; Described two-wheel contact roller is selected 3cm with the distance of the horizontal direction between laser beam; Described upper pressure roller is selected 3cm with laser beam distance in the horizontal direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210586070.0A CN103008893B (en) | 2012-12-28 | 2012-12-28 | Laser tailor welding method for stainless steel plate and fixing device for laser tailor welding |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210586070.0A CN103008893B (en) | 2012-12-28 | 2012-12-28 | Laser tailor welding method for stainless steel plate and fixing device for laser tailor welding |
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| CN103008893A CN103008893A (en) | 2013-04-03 |
| CN103008893B true CN103008893B (en) | 2014-09-17 |
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| CN103817437B (en) * | 2014-02-26 | 2017-03-01 | 中国科学院沈阳自动化研究所扬州工程技术研究中心 | Rotary extrusion type spinning recombination laser soldering tip |
| CN104889528B (en) * | 2015-06-16 | 2017-04-05 | 沈阳飞机工业（集团）有限公司 | A kind of welder and method that form is docked for thin plate |
| DE202016003223U1 (en) * | 2016-05-19 | 2017-08-22 | Thyssenkrupp Ag | Laser welding device |
| CN106903432B (en) * | 2017-05-08 | 2019-01-04 | 哈尔滨工业大学（威海） | Based on the laser assembly solder device and its control method rolled with weldering |
| CN107350917A (en) * | 2017-07-31 | 2017-11-17 | 湖州华通研磨制造有限公司 | One kind machining uses sheet material edge polisher |
| CN109202282B (en) * | 2017-08-31 | 2021-03-05 | 中国航空制造技术研究院 | Auxiliary welding device of T-shaped joint laser welding robot |
| CN110394550B (en) * | 2019-07-03 | 2022-03-22 | 大族激光科技产业集团股份有限公司 | Laser welding apparatus and method |
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| CN113458589B (en) * | 2021-07-22 | 2023-04-11 | 奔腾激光(浙江)股份有限公司 | Semi-automatic handheld laser welding auxiliary trolley |
| CN115156710B (en) * | 2022-08-10 | 2023-10-20 | 江苏锦丰业汽车新材料科技有限公司 | Anti-deformation system for laser splice welding of automobile plate and working method thereof |
| CN115635153A (en) * | 2022-10-10 | 2023-01-24 | 武汉晨扬电子科技有限公司 | Inductor processing equipment |
| CN116511714B (en) * | 2023-07-03 | 2023-09-15 | 辽宁华天航空科技股份有限公司 | Flexible step difference control structure for laser welding of thin plate |
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| CN1050347A (en) * | 1989-09-20 | 1991-04-03 | 埃尔帕特朗尼股份公司 | Electric-resistance seam-welding machine |
| DE19855073A1 (en) * | 1998-11-28 | 2000-05-31 | Volkswagen Ag | Device for joining two components by seam welding using a laser beam comprises pressing elements provided in the direction and on both sides of a supporting element |
| CN202123324U (en) * | 2011-06-02 | 2012-01-25 | 首钢总公司 | Follow-up clamp for laser welding |
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| CN103008893A (en) | 2013-04-03 |
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