CN102489878A - Integrated method of laser cutting and welding for butting connection of three-dimensional tensile pieces - Google Patents
Integrated method of laser cutting and welding for butting connection of three-dimensional tensile pieces Download PDFInfo
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- CN102489878A CN102489878A CN2011103765016A CN201110376501A CN102489878A CN 102489878 A CN102489878 A CN 102489878A CN 2011103765016 A CN2011103765016 A CN 2011103765016A CN 201110376501 A CN201110376501 A CN 201110376501A CN 102489878 A CN102489878 A CN 102489878A
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Abstract
The invention discloses an integrated method of laser cutting and welding suitable for butting connection of three-dimensional tensile pieces, aiming to provide a method for precisely butting the three-dimensional tensile pieces. The method comprises the steps of: performing laser cutting first through a same jig; and then performing laser welding to realize butting connection. The three-dimensional tensile pieces subjected to laser cutting and the jig are not separated in the carrying process to avoid the cut workpieces from deforming and back-springing. Butting clamp of the three-dimensional tensile pieces subjected to laser cutting is directly realized by directly overturning and assembling upper and lower jigs and matching the upper and lower jigs so as to meet the precision requirement of a butt gap between the welded parts and misalignment requirement, therefore high precision laser butting welding of the three-dimensional tensile pieces is realized, and then the internal stress is eliminated by integral thermal treatment.
Description
Technical field
The present invention relates to a kind of cut and the incorporate method of welding that is applicable to that three-dimensional tensioning member butt joint connects.
Background technology
Laser technology is one of twentieth century and atomic energy, semiconductor and computer four inventions equally celebrated for their achievements.Laser technology has obtained important application at industrial and agricultural production, communication, military affairs, health care, the energy etc. aspect many.Laser processing technology has become a common technology in the commercial production through the development of decades.Laser Processing also has informationalized characteristics as a kind of noncontact, low noise, green processing technology pollution-free, that save material; Being convenient to realize the highly flexibleization of Based Intelligent Control and process technology, is that many subjects such as typical light harvesting, mechanical, electrical, material, hot physics are in the advanced machining technology of one.Since the seventies in 20th century; Cut, solder technology begin to apply to the manufacturing field; Maturation along with the cutting of high power three-dimensional laser, solder technology; With its higher process velocity, higher flexibility, the good light-weighted necessary manufacturing means of crudy, particularly delivery vehicle, improved the application of laser technology greatly, and the trend that replaces conventional machining process has gradually been arranged in the field of manufacturing.
The tensioning member that obtains through the drawing die stretching generally will just can weld through excising unnecessary overlap, no matter adopt what method to cut edge, resilience in various degree can be arranged all.In addition; Adopt the heat accumulation that produces in the laser side cut process also can cause it to produce thermal deformation in various degree; This all can exert an influence to the position of cutting track; And then influence cut after-drawing part precision, and the part of two parts up and down that make according to the digital-to-analogue design, stretch, side cut obtains can not dock accurately, thereby can not realize good butt joint connection.
Laser weld replaces the resistance spot welding vehicle body that is welded gradually, and arises at the historic moment based on the butt joint syndeton vehicle body of laser weld.Adopt banjo fixing butt jointing when body in white connects, except alleviating tare, outward appearance is also more attractive in appearance.But after the laser beam line focus, resulting spot diameter is very little, and the welding of banjo fixing butt jointing requires laser beam will accurately act on place, butt joint slit, and guarantees that the butt joint slit is not more than permissible value, and the movement locus of light beam has very high required precision.The butt joint gap and the unfitness of butt joint at banjo fixing butt jointing place have very high requirement when like this, adopting laser weld.Generally, be difficult to guarantee that the two halves tensioning member can accurately align, often dock gap and unfitness of butt joint height through to after tensioning member punching and edge-cutting even the laser side cut certain resilience being arranged all.
Summary of the invention
The objective of the invention is to be directed against the various deformation resilience problems that the three-dimensional tensioning member of prior art exists from the cut to the welding process; And the high-precision requirement of laser butt welding tipping timing; A kind of cut and welding integral method that is applicable to that three-dimensional tensioning member butt joint connects is provided, realized that the laser side cut of three-dimensional tensioning member is connected with butt joint.
Technical scheme of the present invention does; A kind of three-dimensional tensioning member butt joint connects cut and welding integral method; The tensioning member of butt welding up and down is divided into tensioning member and stretched part according to the upper-lower position that welds; And be provided with in order to the last clamp body that clamps tensioning member with in order to clamping the lower clamp body of stretched part,, this method may further comprise the steps:
(1) goes up the some or all of outer surface that clamp body and lower clamp body encircle tensioning member and stretched part respectively;
(2) compress tensioning member and stretched part respectively with the punching press punch, make tensioning member and stretched part be adjacent to clamp body and lower clamp body respectively;
(3) go up on the clamp body and install clamp, last clamp compresses tensioning member and will go up tensioning member and last clamp body is fastening, installation clamp down on the lower clamp body, and following clamp compresses stretched part and stretched part and lower clamp body is fastening;
(4) with the overlap of tensioning member on the laser ablation and stretched part;
(5) clamp steps up with following clamp in the maintenance, will go up tensioning member and stretched part and be transported to welding post together with last clamp body and lower clamp body;
(6) will go up clamp body and turn to lower clamp body top, last clamp body and the assembling of lower clamp body, high accuracy clamping when tensioning member docks welding in the completion with the stretched part;
(7) last tensioning member and stretched part that butt joint is assembled have been accomplished with laser weld.
Clamping is on upper and lower clamp body respectively with upper and lower tensioning member, and when carrying out cut, respectively the do for oneself jig for laser cutting of upper and lower tensioning member of upper and lower clamp body is accomplished cutting action.This clamping method has well been corrected the resilience in various degree that produces after the punching press of tensioning member process and the actual tensioning member that causes and the distortion inaccuracy between the digital-to-analogue.In addition, tensioning member is in laser cutting process, and this clamping method has been realized even clamping, has eliminated the thermal deformation in various degree that heat accumulation causes, and has guaranteed the positional precision of cutting track, and then guarantees cutting accuracy.After cutting is accomplished, directly tensioning member is transported to welding bench together with clamp body up and down, accomplishing up and down through last clamp body upset assembling, clamp body combines.In the whole process; Tensioning member does not separate with anchor clamps, has avoided the distortion and the resilience of cutting after-drawing part, directly assembles through the upset of anchor clamps; And the cooperation between the clamp body up and down; The butt joint of the three-dimensional tensioning member after the realization cut clamps, and satisfies butt joint gap and misalignment requirement between the welding tensioning member, realizes the laser butt welding of high-precision three-dimensional tensioning member.
Know that by above this method realizes that the butt joint of the three-dimensional tensioning member after the cut clamps, required butt joint gap and misalignment requirement when satisfying laser weld, the laser butt welding of realization high-precision three-dimensional tensioning member.
Description of drawings
Fig. 1 is a laser side cut station, anchor clamps clamping cross sectional representation;
Fig. 2 is the laser weld station, anchor clamps clamping cross sectional representation;
Fig. 3 is the structural representation of the used anchor clamps of this method;
Fig. 4 is a structural representation of going up clamp body among Fig. 3;
Fig. 5 is the structural representation of lower clamp body among Fig. 3;
In Fig. 1-5: 1-lower clamp body; The 2-clamping force; The 3-laser beam; 4-stretched part; The last tensioning member of 5-; The last clamp body of 6-; The 7-limited post; The last profile cavity of 11-; The 12-upper mounted plate; Profile cavity under the 21-; The 22-bottom plate; The last clamp of 31-; Clamp under the 32-; The 41-guide pillar; The 42-guide pin bushing.
Specific embodiments
A kind of three-dimensional tensioning member butt joint connects cut and welding integral method; The tensioning member of butt welding up and down is divided into tensioning member 5 and stretched part 4 based on the upper-lower position that welds; And be provided with in order to the last clamp body that clamps tensioning member with in order to clamp the lower clamp body of stretched part, this method may further comprise the steps:
(1) goes up the some or all of outer surface that clamp body 6 and lower clamp body 1 encircle tensioning member 5 and stretched part 4 respectively;
(2) compress tensioning member 5 and stretched part 4 respectively with the punching press punch, make tensioning member 5 and stretched part 4 be adjacent to clamp body 6 and lower clamp body 1 respectively;
(3) go up on the clamp body 6 and install clamp, last clamp compresses tensioning member 5 and will go up tensioning member 5 fastening with last clamp body 6, clamp under installing on the lower clamp body 1, and following clamp compresses stretched part 4 and stretched part 4 and lower clamp body 1 is fastening;
(4) with the overlap of tensioning member on the laser ablation 5 and stretched part 4;
(5) keep clamping force 2 not unclamp, will go up tensioning member 5 and be transported to welding post together with last clamp body 6 with lower clamp body 1 with stretched part 4;
(6) will go up clamp body 6 and turn to lower clamp body 1 top, last clamp body 6 and 1 assembling of lower clamp body, high accuracy clamping when tensioning member 5 docks welding in the completion with stretched part 4;
(7) last tensioning member 5 and stretched part 4 that butt joint is assembled have been accomplished with laser weld.
Like Fig. 3-shown in Figure 5; Last clamp body 6 bottoms are provided with and encircle the last profile cavity 11 that tensioning member 5 needs top, welding position, and lower clamp body 1 top is provided with and encircles the following profile cavity 21 that the tensioning member 4 of staying needs the bottom, welding position, and last clamp body 6 also comprises upper mounted plate 12; Last profile cavity 11 end faces are fixed on upper mounted plate 12; Lower clamp body 1 also comprises bottom plate 22, and following profile cavity 21 bottom surfaces are fixed on bottom plate 22, install clamp 31 on the last clamp body 6; Last clamp 31 bottom surfaces place tensioning member 5 bottoms, and last clamp 31 end faces place upper mounted plate 12 bottoms and fastening through bolt and upper mounted plate 12; Clamp 32 down is installed on the lower clamp body 1, and following clamp 32 end faces place stretched part 4 tops, and following clamp 32 bottom surfaces place bottom plate 22 tops and fastening through bolt and bottom plate 22.
Laser is cut edge shown in Fig. 1 schematic cross-section, and when adopting laser 3 to cut edge, last clamp body 6 is respectively done for oneself with lower clamp body 1 and gone up laser 3 cutting clampers of tensioning member 5 and stretched part 4; Accomplish cutting action alone, utilize this method, well corrected the resilience in various degree that produces after the punching press of tensioning member process and the actual tensioning member that causes and the distortion inaccuracy between the digital-to-analogue; In addition; Last tensioning member 5 and stretched part 4 are in laser 3 cutting process, and this method has realized even clamping, has eliminated the thermal deformation in various degree that heat accumulation causes; Guarantee the positional precision of cutting track, and then guaranteed cutting accuracy.After cutting work station is accomplished, keep clamping force 2 not unclamp, directly will go up tensioning member 5 and be transported to welding post together with last clamp body 6 with lower clamp body 1 with stretched part 4; Assemble through last clamp body 6 upsets and with lower clamp body 1; During assembling, anchor clamps are provided with the guiding mechanism that clamp body 6 and lower clamp body 1 horizontal direction relative position are gone up in control, and this guiding mechanism comprises the guide pin bushing 42 of guide pillar 41 and band dowel hole; Guide pillar 41 bottoms are installed in the dowel hole; Guide pillar 41 tops and guide pin bushing 42 bottoms correspondence respectively are installed in upper mounted plate 12 bottoms and bottom plate 22 tops, and guide pillar 41 be interference fits with upper mounted plate 12, and guide pin bushing 42 and bottom plate 22 are interference fits.Anchor clamps also are provided with the limited post 7 that clamp body 6 and lower clamp body 1 vertical distance are gone up in control, and the correspondence position on upper mounted plate 12 bottoms and bottom plate 22 tops is respectively equipped with the post hole.
After the assembling, clamp body 6 combines with lower clamp body 1 in the completion, and is as shown in Figure 2.Last tensioning member 5, stretched part 4 do not separate with the cutting clamper body, have avoided the distortion and the resilience of cutting after-drawing part, have realized that last tensioning member 5 docks high accuracy clamping when welding with stretched part 4.Accomplish the last tensioning member 5 and stretched part 4 of butt joint assembling at last with laser 3 welding.
Claims (1)
1. a three-dimensional tensioning member butt joint connects cut and welding integral method; The tensioning member of butt welding up and down is divided into tensioning member and stretched part according to the upper-lower position that welds; And be provided with in order to the last clamp body that clamps tensioning member with in order to clamp the lower clamp body of stretched part; It is characterized in that this method may further comprise the steps:
(1) goes up the some or all of outer surface that clamp body and lower clamp body encircle tensioning member and stretched part respectively;
(2) compress tensioning member and stretched part respectively with the punching press punch, make tensioning member and stretched part be adjacent to clamp body and lower clamp body respectively;
(3) go up on the clamp body and install clamp, last clamp compresses tensioning member and will go up tensioning member and last clamp body is fastening, installation clamp down on the lower clamp body, and following clamp compresses stretched part and stretched part and lower clamp body is fastening;
(4) with the overlap of tensioning member on the laser ablation and stretched part;
(5) clamp steps up with following clamp in the maintenance, will go up tensioning member and stretched part and be transported to welding post together with last clamp body and lower clamp body;
(6) will go up clamp body and turn to lower clamp body top, last clamp body and the assembling of lower clamp body, high accuracy clamping when tensioning member docks welding in the completion with the stretched part;
(7) last tensioning member and stretched part that butt joint is assembled have been accomplished with laser weld.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110376501.6A CN102489878B (en) | 2011-11-23 | 2011-11-23 | Integrated method of laser cutting and welding for butting connection of three-dimensional tensile pieces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110376501.6A CN102489878B (en) | 2011-11-23 | 2011-11-23 | Integrated method of laser cutting and welding for butting connection of three-dimensional tensile pieces |
Publications (2)
| Publication Number | Publication Date |
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| CN102489878A true CN102489878A (en) | 2012-06-13 |
| CN102489878B CN102489878B (en) | 2014-03-12 |
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| CN201110376501.6A Expired - Fee Related CN102489878B (en) | 2011-11-23 | 2011-11-23 | Integrated method of laser cutting and welding for butting connection of three-dimensional tensile pieces |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014032381A1 (en) * | 2012-08-30 | 2014-03-06 | 长春轨道客车股份有限公司 | Manufacturing and detection method for large slab three-dimensional metal cover part |
| CN104227278A (en) * | 2014-09-01 | 2014-12-24 | 浙江巨霸焊接设备制造有限公司 | Box body welding machine |
Citations (5)
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|---|---|---|---|---|
| JP2903815B2 (en) * | 1991-12-13 | 1999-06-14 | 日産自動車株式会社 | Fixture jig for laser welding work |
| JP2000140992A (en) * | 1998-11-06 | 2000-05-23 | Matsushita Electric Ind Co Ltd | Welding chip, and its manufacture |
| CN1332053A (en) * | 2001-07-06 | 2002-01-23 | 华中科技大学 | Laser process of producing H-steel |
| CN2887511Y (en) * | 2005-10-31 | 2007-04-11 | 宝山钢铁股份有限公司 | Clamp for laser splice-welding and cutting |
| CN101653865A (en) * | 2009-09-11 | 2010-02-24 | 湖南大学 | Method suitable for trial manufacturing new car model and producing car body in white in limited quantities |
-
2011
- 2011-11-23 CN CN201110376501.6A patent/CN102489878B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2903815B2 (en) * | 1991-12-13 | 1999-06-14 | 日産自動車株式会社 | Fixture jig for laser welding work |
| JP2000140992A (en) * | 1998-11-06 | 2000-05-23 | Matsushita Electric Ind Co Ltd | Welding chip, and its manufacture |
| CN1332053A (en) * | 2001-07-06 | 2002-01-23 | 华中科技大学 | Laser process of producing H-steel |
| CN2887511Y (en) * | 2005-10-31 | 2007-04-11 | 宝山钢铁股份有限公司 | Clamp for laser splice-welding and cutting |
| CN101653865A (en) * | 2009-09-11 | 2010-02-24 | 湖南大学 | Method suitable for trial manufacturing new car model and producing car body in white in limited quantities |
Non-Patent Citations (1)
| Title |
|---|
| 奚居雄: "汽车工业中的激光焊接和切割", 《光电子技术与信息》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014032381A1 (en) * | 2012-08-30 | 2014-03-06 | 长春轨道客车股份有限公司 | Manufacturing and detection method for large slab three-dimensional metal cover part |
| CN104227278A (en) * | 2014-09-01 | 2014-12-24 | 浙江巨霸焊接设备制造有限公司 | Box body welding machine |
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| Publication number | Publication date |
|---|---|
| CN102489878B (en) | 2014-03-12 |
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