CN110524113A - Welding position localization method based on weld seam centering - Google Patents

Welding position localization method based on weld seam centering Download PDF

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Publication number
CN110524113A
CN110524113A CN201910749352.XA CN201910749352A CN110524113A CN 110524113 A CN110524113 A CN 110524113A CN 201910749352 A CN201910749352 A CN 201910749352A CN 110524113 A CN110524113 A CN 110524113A
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CN
China
Prior art keywords
weld
welding
gap
plate
axis
Prior art date
Application number
CN201910749352.XA
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Chinese (zh)
Inventor
方奇飞
王珏
姚安
崔玉林
单宝
颜耀辉
Original Assignee
上海宝钢阿赛洛激光拼焊有限公司
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Application filed by 上海宝钢阿赛洛激光拼焊有限公司 filed Critical 上海宝钢阿赛洛激光拼焊有限公司
Priority to CN201910749352.XA priority Critical patent/CN110524113A/en
Publication of CN110524113A publication Critical patent/CN110524113A/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/08Devices involving relative movement between laser beam and workpiece
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/20Bonding
    • B23K26/21Bonding by welding
    • B23K26/24Seam welding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/70Auxiliary operations or equipment
    • B23K26/702Auxiliary equipment

Abstract

The invention discloses a kind of welding position localization methods based on weld seam centering, including step 1: the first plate (01) welded and the second plate (02) will be needed to be placed in welding bench and form weld gap (03);Step 2: starting laser head (05) welds the first plate and the second plate along weld gap by laser beam (04), make there are viewing section (08) between axis of a weld (06) initial point and weld gap initial point, there are viewing sections between axis of a weld terminal and weld gap terminal;Step 3: the deviation between observation axis of a weld and weld gap;Step 4: according to bias adjustment laser head, making laser head deviation having the same, the axis of a weld of weld seam in subsequent production is enable to be overlapped with weld gap centering;Step 5: carrying out batch welding production.By the present invention in that the axis of a weld that welding is formed is overlapped with the weld gap straight line centering of two blocks of steel plates, it is ensured that the mechanical property of steel plate commissure, to improve product quality.

Description

Welding position localization method based on weld seam centering

Technical field

The present invention relates to a kind of manufacture processing method of steel plate more particularly to a kind of welding position based on weld seam centering are fixed Position method.

Background technique

Currently, laser assembly solder plate is widely applied in automotive body structure part field.Laser assembly solder plate welding when need by Interal fixation is on welding bench, and when welding, two pieces of steel plate places to be welded are closely close to and keep almost 0 gap, from front See as elongated straight line such as same.The axis of a weld formed after the completion of laser welding needs the gap between two blocks of steel plates straight Line is overlapped, and can just guarantee the mechanical property of commissure, if between axis of a weld and two blocks of steel plates that welding is formed The deviation of certain distance occurs for gap, and it will cause the declines of commissure mechanical property, it is ensured that the quality of product.Therefore it adjusts to spelling Gap line is overlapped with the center line of main weld critically important just.

Being adjusted in the prior art to gap line is spelled is usually just the warp for relying on worker with the method for the center line of main weld The soldered product of observation is tested, and confirms the position and direction of laser head by adjusting repeatedly, makes the mechanics of commissure Performance is able to satisfy product design requirement, but the method for manual adjustment still has certain error, not can guarantee the quality of product, even Lead to scrapping for steel plate, reduces economic benefit, meanwhile, higher to the skill requirement of operator, working efficiency is relatively low.

Summary of the invention

The purpose of the present invention is to provide a kind of welding position localization methods based on weld seam centering, by forming welding Axis of a weld be overlapped with the weld gap straight line of two blocks of steel plates, it is ensured that the mechanical property of steel plate commissure, to improve production Quality.

The present invention is implemented as follows:

A kind of welding position localization method based on weld seam centering, comprising the following steps:

Step 1: the first plate welded and the second plate will be needed to be placed in welding bench, and fixed, the first plate and second Weld gap is formed between plate;

Step 2: starting laser head welds the first plate and the second plate along weld gap by laser beam, makes axis of a weld Initial point and weld gap initial point between there are viewing sections, between the terminal of axis of a weld and the terminal of weld gap there are Viewing section;

Step 3: the deviation between the overleaf observing axis of a weld and weld gap of weld seam;

Step 4: according to the bias adjustment laser head between axis of a weld and weld gap, keeping laser head having the same partially Difference, and the axis of a weld of weld seam can be overlapped with weld gap centering in subsequent production;

Step 5: carrying out batch welding production.

The width of the weld gap is no more than 0.15mm.

The length range of the viewing section is 30-100mm.

In the step 3, by precision be 0.1mm 10 times of amplification sem observation axiss of a weld and weld gap it Between deviation.

Deviation between the axis of a weld and weld gap includes offset distance and bias direction.

In the step 5, when batch welding production, laser beam completes one from the welding of the initial point of weld gap to terminal Secondary weld job.

The present invention is more convenient for welding the weld seam of the axis of a weld and two blocks of steel plates that are formed by reserving viewing section end to end Gap centering is overlapped, and is accurately adjusted the position and direction of laser head according to offset distance and bias direction and is carried out weld job, It is more accurate, convenient to weld, it is ensured that the mechanical property of steel plate commissure avoids artificial centering and generate to improve product quality Error, prevent the case where steel plate is scrapped, improve working efficiency and economic benefit.

Detailed description of the invention

Fig. 1 is the flow chart of the welding position localization method the present invention is based on weld seam centering;

Fig. 2 is the schematic diagram of the welding position localization method the present invention is based on weld seam centering;

Fig. 3 is using the present invention is based on the operation charts that the welding position localization method of weld seam centering carries out weld job.

In figure, 01 first plate, 02 second plate, 03 weld gap, 04 laser beam, 05 laser head, 06 axis of a weld, 07 weld seam, 08 viewing section.

Specific embodiment

The present invention will be further explained below with reference to the attached drawings and specific examples.

Refer to attached drawing 1, a kind of welding position localization method based on weld seam centering, comprising the following steps:

Step 1: the first plate 01 welded and the second plate 02 will be needed to be placed in welding bench, and fixed, the first plate 01 Weld gap 03 is formed between the second plate 02.

Step 2: referring to attached drawing 2 and attached drawing 3, start laser head 05, by laser beam 04 along the welding of weld gap 03 the One plate 01 and the second plate 02 make between the initial point of axis of a weld 06 and the initial point A of weld gap 03 there are viewing section 08, There are viewing sections 08 between the terminal of axis of a weld 06 and the terminal B of weld gap 03.

Preferably, the width of the weld gap 03 is no more than 0.15mm, and the width of weld gap 03 is sufficiently small, is convenient for The centering of axis of a weld 06.

Preferably, the length range of the viewing section 08 is 30-100mm, i.e., laser beam 04 is apart from weld gap 03 Start to weld at initial point A about 30-100mm, and stops welding at the terminal B about 30-100mm apart from weld gap 03, observation The observation of the deviation of reserved the be more convenient for axis of a weld 06 and weld gap 03 of section 08, so that it is guaranteed that centering coincidence is accurate Degree.

Step 3: the deviation between the overleaf observing axis of a weld 06 and weld gap 03 of weld seam 07.In order to subtract as far as possible The error of small observation improves welding accuracy, and 10 times of amplification sem observation axiss of a weld 06 and weldering that precision is 0.1mm can be used Deviation between gap 03.

Preferably, the deviation between the axis of a weld 06 and weld gap 03 includes offset distance and deviation side To.

Step 4: according to the bias adjustment laser head 05 between axis of a weld 06 and weld gap 03, having laser head 05 There is identical deviation, so that the axis of a weld 06 of the weld seam 07 in subsequent production be enable to be overlapped with 03 centering of weld gap.

Step 5: carrying out batch welding production, when batch welding production, laser beam 04 is welded from the initial point A of weld gap 03 B completes a weld job to terminal.With batch plate welding when position without re-adjustments laser head 05.

The welding position localization method based on weld seam centering can apply in the production of vehicle structural members.

Embodiment 1:

The welding of the embodiment uses the dish-style laser of the prior art, laser power 6kw, speed of welding 5m/min, and first Plate 01 uses plate thickness for the zinc-plated cold-reduced sheet of 1.6mm, and the second plate 02 uses plate thickness for the zinc-plated cold-reduced sheet of 1.2mm.First Plate 01 and the second plate 02 are fixed on the table, and make the first plate 01 and the second plate 02 to spelling gap 0.1mm, i.e., Weld gap 03 is equal to 0.1mm.

Adjustment laser beam 04 makes it start to weld at initial point A about 30mm, is stopping weldering at terminal B about 30mm It connects.Then weldment is removed from workbench, is wiped clean at weld seam 07, is measured using 10 times of magnifying glass rulers (precision 0.1mm) The deviation of weld gap 03 and axis of a weld 06: 0.2mm to the left.After measurement, according to the bias direction (to the left) surveyed Laser head 05 is adjusted with distance (0.2mm), moves it same distance and direction.It can start to weld after adjustment subsequent Same product, when subsequent same Product jointing, from initial point A welding, B terminates one action circulation, matter after the completion of welding to terminal It examines, Erichsen test is qualified at weld seam 07.

Embodiment 2:

The welding of the embodiment uses the dish-style laser of the prior art, laser power 6kw, speed of welding 5m/min, and first Plate 01 uses plate thickness for the zinc-plated cold-reduced sheet of 1.6mm, and the second plate 02 uses plate thickness for the zinc-plated cold-reduced sheet of 1.2mm.First Plate 01 and the second plate 02 are fixed on the table, and make the first plate 01 and the second plate 02 to spelling gap 0.1mm, i.e., Weld gap 03 is equal to 0.1mm.

Adjustment laser beam 04 makes it start to weld at initial point A about 60mm, is stopping weldering at terminal B about 60mm It connects.Then weldment is removed from workbench, is wiped clean at weld seam 07, is measured using 10 times of magnifying glass rulers (precision 0.1mm) The deviation of weld gap 03 and axis of a weld 06: 0.2mm to the right.After measurement, according to the bias direction (to the right) surveyed Laser head 05 is adjusted with distance (0.2mm), moves it same distance and direction.It can start to weld after adjustment subsequent Same product, when subsequent same Product jointing, from initial point A welding, B terminates one action circulation, matter after the completion of welding to terminal It examines, Erichsen test is qualified at weld seam 07.

Embodiment 3:

The welding of the embodiment uses the dish-style laser of the prior art, laser power 6kw, speed of welding 5m/min, and first Plate 01 uses plate thickness for the zinc-plated cold-reduced sheet of 1.6mm, and the second plate 02 uses plate thickness for the zinc-plated cold-reduced sheet of 1.2mm.First Plate 01 and the second plate 02 are fixed on the table, and make the first plate 01 and the second plate 02 to spelling gap 0.1mm, i.e., Weld gap 03 is equal to 0.1mm.

Adjustment laser beam 04 makes it start to weld at initial point A about 100mm, is stopping weldering at terminal B about 100mm It connects.Then weldment is removed from workbench, is wiped clean at weld seam 07, is measured using 10 times of magnifying glass rulers (precision 0.1mm) The deviation of weld gap 03 and axis of a weld 06: 0.3mm to the left.After measurement, according to the bias direction (to the left) surveyed Laser head 05 is adjusted with distance (0.3mm), moves it same distance and direction.It can start to weld after adjustment subsequent Same product, when subsequent same Product jointing, from initial point A welding, B terminates one action circulation, matter after the completion of welding to terminal It examines, Erichsen test is qualified at weld seam 07.

The above is merely preferred embodiments of the present invention, it is not intended to limit the protection scope of invention, it is therefore, all at this Any modification, equivalent replacement, improvement and so within the spirit and principle of invention, should be included in protection model of the invention Within enclosing.

Claims (6)

1. a kind of welding position localization method based on weld seam centering, it is characterized in that: the following steps are included:
Step 1: the first plate (01) welded and the second plate (02) will be needed to be placed in welding bench, and fixed, the first plate Expect to form weld gap (03) between (01) and the second plate (02);
Step 2: starting laser head (05), by laser beam (04) along weld gap (03) welding the first plate (01) and the second plate Expect (02), makes between the initial point of axis of a weld (06) and the initial point A of weld gap (03) that there are viewing section (08), Weld pipe mills There are viewing section (08) between the terminal of line (06) and the terminal B of weld gap (03);
Step 3: the deviation between the overleaf observing axis of a weld (06) and weld gap (03) of weld seam (07);
Step 4: according to the bias adjustment laser head (05) between axis of a weld (06) and weld gap (03), making laser head (05) deviation having the same, and the axis of a weld (06) of weld seam (07) can be with weld gap (03) centering weight in subsequent production It closes;
Step 5: carrying out batch welding production.
2. the welding position localization method according to claim 1 based on weld seam centering, it is characterized in that: between the weld seam The width of gap (03) is no more than 0.15mm.
3. the welding position localization method according to claim 1 based on weld seam centering, it is characterized in that: the viewing section (08) length range is 30-100mm.
4. the welding position localization method according to claim 1 based on weld seam centering, it is characterized in that: in the step In 3, pass through 10 times of deviations amplified between sem observation axis of a weld (06) and weld gaps (03) that precision is 0.1mm.
5. the welding position localization method according to claim 1 or 4 based on weld seam centering, it is characterized in that: the weldering The deviation stitched between center line (06) and weld gap (03) includes offset distance and bias direction.
6. the welding position localization method according to claim 1 based on weld seam centering, it is characterized in that: in the step In 5, when batch welding production, laser beam (04), which from the initial point A of weld gap (03) welds B to terminal, to be completed primary welding and makees Industry.
CN201910749352.XA 2019-08-14 2019-08-14 Welding position localization method based on weld seam centering CN110524113A (en)

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2915349Y (en) * 2006-04-29 2007-06-27 中国国际海运集装箱(集团)股份有限公司 Centering mechanism for straight welding line automatic welding and its automatic welding device
CN102107326A (en) * 2009-12-23 2011-06-29 沈阳黎明航空发动机(集团)有限责任公司 Centering process method for electron beam of plane annular welding line
CN102179598A (en) * 2011-03-31 2011-09-14 中国科学院自动化研究所 Method and device for centering initial welding positions of flat narrow welding lines and tracking welding lines
CN102814574A (en) * 2012-09-06 2012-12-12 江苏科技大学 Narrow gap welding monitoring and welding line deviation detecting method based on infrared vision sensing
CN202763280U (en) * 2012-08-24 2013-03-06 无锡汉神电气有限公司 Laser welding quality online monitoring device based on paraxial charge coupled device (CCD)
CN103341685A (en) * 2013-07-17 2013-10-09 湘潭大学 Weld joint automatic tracking control method and system based on magnetic controlling arcs and laser vision sensing
US20140034622A1 (en) * 2012-08-03 2014-02-06 Lincoln Global, Inc. Method and system for narrow grove welding using laser and hot-wire system
CN104722922A (en) * 2014-12-23 2015-06-24 张家港浦项不锈钢有限公司 Dynamic welding method of laser welding machine
CN107363405A (en) * 2017-06-21 2017-11-21 上海交通大学 High-strength steel construction piece sheet laser tailor-welding system

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2915349Y (en) * 2006-04-29 2007-06-27 中国国际海运集装箱(集团)股份有限公司 Centering mechanism for straight welding line automatic welding and its automatic welding device
CN102107326A (en) * 2009-12-23 2011-06-29 沈阳黎明航空发动机(集团)有限责任公司 Centering process method for electron beam of plane annular welding line
CN102179598A (en) * 2011-03-31 2011-09-14 中国科学院自动化研究所 Method and device for centering initial welding positions of flat narrow welding lines and tracking welding lines
US20140034622A1 (en) * 2012-08-03 2014-02-06 Lincoln Global, Inc. Method and system for narrow grove welding using laser and hot-wire system
CN202763280U (en) * 2012-08-24 2013-03-06 无锡汉神电气有限公司 Laser welding quality online monitoring device based on paraxial charge coupled device (CCD)
CN102814574A (en) * 2012-09-06 2012-12-12 江苏科技大学 Narrow gap welding monitoring and welding line deviation detecting method based on infrared vision sensing
CN103341685A (en) * 2013-07-17 2013-10-09 湘潭大学 Weld joint automatic tracking control method and system based on magnetic controlling arcs and laser vision sensing
CN104722922A (en) * 2014-12-23 2015-06-24 张家港浦项不锈钢有限公司 Dynamic welding method of laser welding machine
CN107363405A (en) * 2017-06-21 2017-11-21 上海交通大学 High-strength steel construction piece sheet laser tailor-welding system

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