CN103056475B - Method and device for detecting tensioning of brazing filler metal during automatic braze welding - Google Patents
Method and device for detecting tensioning of brazing filler metal during automatic braze welding Download PDFInfo
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- CN103056475B CN103056475B CN201310012539.4A CN201310012539A CN103056475B CN 103056475 B CN103056475 B CN 103056475B CN 201310012539 A CN201310012539 A CN 201310012539A CN 103056475 B CN103056475 B CN 103056475B
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- solder
- brazing filler
- filler metal
- tensioning
- detecting
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- 238000005219 brazing Methods 0.000 title claims abstract description 22
- 238000003466 welding Methods 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000002184 metal Substances 0.000 title abstract description 22
- 229910052751 metal Inorganic materials 0.000 title abstract description 22
- 239000000945 filler Substances 0.000 title abstract 15
- 238000003825 pressing Methods 0.000 claims abstract description 11
- 238000006073 displacement reaction Methods 0.000 claims abstract description 5
- 229910000679 solder Inorganic materials 0.000 claims description 116
- 238000001514 detection method Methods 0.000 claims description 21
- 238000013024 troubleshooting Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 4
- 238000004021 metal welding Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- 239000000523 sample Substances 0.000 description 4
- 238000005476 soldering Methods 0.000 description 4
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000010953 base metal Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
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- Resistance Welding (AREA)
Abstract
The invention discloses a method and a device for detecting tensioning of brazing filler metal during automatic braze welding, and belongs to the technical field of metal welding. The device for detecting the tensioning of the brazing filler metal comprises a brazing filler metal conveying mechanism (A), a brazing filler metal tensioning detecting device (B), a pressurizing mechanism (C) and a welding jig (D). The method for detecting the tensioning of the brazing filler metal includes 1, pressing one end of the brazing filler metal by the aid of the brazing filler metal conveying mechanism; 2, placing the other end of the brazing filler metal between two welded workpieces and compressing the other end of the brazing filler metal by the aid of the pressurizing mechanism; 3, determining that the a brazing filler metal strap is in a tensioned state if the two ends of the brazing filler metal are compressed, and detecting whether the brazing filler metal is positioned between the two workpieces in a welding procedure or not by the aid of a small cylinder; and 4, enabling a displacement detector switch for detecting the stroke of a cylinder to judge whether the brazing filler metal is positioned between the two workpieces or not, judging again if operation cannot be completed successfully, and processing a fault if the operation is repeated by three times but cannot be completed successfully. The method and the device have the advantages of convenience in operation, low cost, compact structure, reliable performance and applicability to brazing filler metal straps which are made of different materials and have different thicknesses.
Description
Technical field
The invention belongs to the technical field of metal solder.
Background technology
Soldering is the one of three large welding methods (melting welding, pressure welding, soldering).Soldering is to adopt the metal solder lower than weldment melting point metal, by weldment and solder be heated to above solder, lower than weldment fusion temperature, utilize liquid solder to soak weldment metal, fill play movement and realize with the counterdiffusion of base metals phase a kind of method that is connected weldment.
Soldering principle is the welding method that the clearance plane that utilizes liquid solder to fill up brazing metal faying face forms firm joint, and its technical process must possess two primary conditions.
A) liquid solder can soak whole gaps of filling up of brazing metal energy densification;
B) liquid solder and brazing metal carry out necessary physics, chemical reaction reaches good intermetallic and is combined.
Along with the raising of industrial automation level, many times welding process need to automatically complete, and therefore solder is also wanted self-feeding, must guarantee to have solder simultaneously---and be the detection of solder.
At present, solder mainly exists with the form of band material web-like, thickness difference, and width is optional, and the means of detection mainly contain photoelectric detection probe, laser detection probe and the machinery methods such as feed mechanism of pulling back and detect between two welding work pieces, whether there is solder.
Wide in variety because of solder, material difference, surface reflection there are differences, and causes photoelectric detection probe, laser detection probe often to occur erroneous judgement and the problem that cannot detect; Simultaneously because the thickness scope of solder distributes wide, for the situation of solder band thinner (approximately 0.06～0.15MM), the method that adopts machinery to pull back detects whether have solder between two welding work pieces time, easily solder is broken to (being whole feed mechanism because of what pull back), system cannot be produced normally.
Summary of the invention
The object of the invention is to address the above problem and realize industrial automation and produce, adopt a kind of new in automatic brazing welding process the detection method of solder, and solder tensioning checkout gear.
The step of detection method:
1, solder one end is pushed down by solder conveying mechanism;
2, the solder other end is placed in the middle of two welded parts, compresses by pressing mechanism;
If 3 solder two ends all compress, now solder band should, in tensioning state, because solder is thin and crisp, easily rupture, and at this, adopts a cylinder diameter little, and the further tensioning solder of little cylinder that stroke is short, for detection of whether there being solder in welding process between two workpiece;
4, make by the displacement sense switch that detects cylinder stroke the judgement that whether has solder between two workpiece.If there is solder (referring to accompanying drawing 1), now the two ends of solder are held down respectively and in half tensioning state, in the time that detection cylinder moves further tensioning solder, because the tension section length of solder can not change, so the stroke variable quantity of solder pressure head is very little on detection cylinder, system can be judged between two welding work pieces and pressed solder by time delay, discharges and welds and repeat above-mentioned circulation step; If there is no solder (referring to accompanying drawing 2), there is no solder because of between two workpiece, this end of solder is in free state, solder band tensioning state changes along with the variation of the solder ram position of detection cylinder, thereby produce a displacement that can detect, system is determined between two workpiece does not have solder, and again send solder.
Rejudge, three unsuccessful complete operations, do troubleshooting.
Solder tensioning checkout gear in automatic brazing welding, comprises the parts such as solder conveying mechanism, solder tensioning checkout gear, pressing mechanism and weld jig, and solder conveying mechanism, pressing mechanism and weld jig are installed on board.Wherein solder tensioning checkout gear forms by detecting cylinder, air cylinder fixed plate, solder pressure head and pressure head guide pad, air cylinder fixed plate is arranged on stock guide, detect cylinder and pressure head limited block and be arranged in air cylinder fixed plate, solder pressure head is fixed on the axis of the piston that detects cylinder.And upper stock guide, lower stock guide and solder band are fixed on solder conveying mechanism; Top electrode is connected on pressing mechanism, and bottom electrode, workpiece one and workpiece two are all positioned on weld jig.
Effect of the present invention is:
1, can adjust by adjusting the pressure of cylinder the tensile force of solder, easy to operate;
2, cost is low, can complete with common cylinder magnetic detection switch;
3, principle is simple, compact conformation, and dependable performance, easily realizes;
4, applicable to various unlike materials, the different solder band of thickness.
Brief description of the drawings
Fig. 1 is solder tensioning structure of the detecting device schematic diagram, wherein: A---solder conveying mechanism, B---solder tensioning checkout gear, C---pressing mechanism, D---weld jig, 1---detects cylinder, 2---air cylinder fixed plate, 3---solder pressure head, 4---pressure head guide pad, the upper stock guide of 5---, stock guide under 6---, 7---solder band, 8---top electrode, 9---bottom electrode, 10---workpiece one, 11---workpiece two;
Fig. 2 is the situation while having solder between two workpiece of Fig. 1;
Fig. 3 is the situation during without solder between two workpiece of Fig. 1.
Detailed description of the invention
As shown in Figure 1, this apparatus main body comprises the parts such as solder conveying mechanism A, solder tensioning checkout gear B, pressing mechanism C and weld jig D, and solder conveying mechanism A, pressing mechanism C and weld jig D are installed on board.Wherein solder tensioning checkout gear forms by detecting cylinder 1, air cylinder fixed plate 2, solder pressure head 3 and pressure head guide pad 4, air cylinder fixed plate 2 is arranged on stock guide 5, detect cylinder 1 and pressure head limited block 4 and be arranged in air cylinder fixed plate 2, solder pressure head 3 is fixed on the axis of the piston that detects cylinder 1.And upper stock guide 5, lower stock guide 6 and solder band 7 are fixed on solder conveying mechanism; It is upper that top electrode 8 is connected to pressing mechanism C, and bottom electrode 9, workpiece 1 and workpiece 2 11 are all positioned on weld jig D.
1, solder band 7, under the effect of solder conveying mechanism A, is pushed ahead step by step by upper stock guide 5 and lower stock guide 6, is placed between the workpiece 1 and workpiece 2 11 of locating on weld jig until solder is sent to.Now solder conveying mechanism compresses the delivery end of solder band, and because of gapped between upper and lower two workpiece, the output of solder is freely.
2, weld jig D is respectively used to positioning workpieces 1 and workpiece 2 11, and wherein workpiece 2 10 is supported by bottom electrode 9, and workpiece 1 can float downwards under the effect of external force, conveniently adds solder.Drive top electrode 8 to do under the effect of pressurization motion downwards at pressing mechanism C, solder band 7 moves down with workpiece 1, until pushed down firmly by workpiece 1 and workpiece 2 11.Now, the two ends of solder are all fixed, and solder is in tensioning state.
3, at this moment will carry out the detection of solder.The detection cylinder 1 of carrying magnetic switch is supported on solder on stock guide 5 by air cylinder fixed plate 2, and solder pressure head 3, detecting under the effect of cylinder 1, moves downward along solder pressure head guide pad 4, is pressed on solder band 7.Because solder two ends are now held down, in tensioning state, can there is not large variation in the stroke of cylinder substantially, and the signal of magnetic switch does not change.
If solder band one or both ends are freely, solder pressure head 3 can bend to " U " shape or " V " shape by solder band 7 by the perforate on lower stock guide 6, there is variation in the stroke that now detects cylinder 1, the signal of magnetic switch also can change, illustrate that the one or both ends of solder are in free state, between workpiece 1 and workpiece 2 11, there is no solder or solder fracture occurs, and send cue to system.
4, when system has detected solder, automatically weld; If system does not detect solder, solder conveying mechanism will send solder again, and system also rejudges, and three unsuccessful complete operations, do troubleshooting.
Claims (2)
1. solder tensioning detection method in automatic brazing welding, is characterized in that:
1), solder one end is pushed down by solder conveying mechanism;
2), the solder other end is placed in the middle of two welded parts, compress by pressing mechanism;
3), solder two ends all compress, now solder band should, in tensioning state, adopt in air cylinder detecting welding process whether have solder between two workpiece;
4), make by the displacement sense switch that detects cylinder stroke the judgement that whether has solder between two workpiece, if there is solder, now the two ends of solder are held down respectively and in half tensioning state, in the time that detection cylinder moves further tensioning solder, because the tension section length of solder can not change, so the stroke variable quantity of solder pressure head is very little on detection cylinder, system can be judged between two welding work pieces and pressed solder by time delay, discharges and welds and repeat above-mentioned circulation step; If there is no solder, because there is no solder between two workpiece, this end of solder is in free state, solder band tensioning state changes along with the variation of the solder ram position of detection cylinder, thereby produce a displacement that can detect, system is determined between two workpiece does not have solder, and again send solder.
2. detection method according to claim 1, is characterized in that: rejudge three unsuccessful complete operations 4), do troubleshooting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310012539.4A CN103056475B (en) | 2013-01-15 | 2013-01-15 | Method and device for detecting tensioning of brazing filler metal during automatic braze welding |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310012539.4A CN103056475B (en) | 2013-01-15 | 2013-01-15 | Method and device for detecting tensioning of brazing filler metal during automatic braze welding |
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| Publication Number | Publication Date |
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| CN103056475A CN103056475A (en) | 2013-04-24 |
| CN103056475B true CN103056475B (en) | 2014-12-10 |
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| CN201310012539.4A Active CN103056475B (en) | 2013-01-15 | 2013-01-15 | Method and device for detecting tensioning of brazing filler metal during automatic braze welding |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1289251C (en) * | 2001-04-24 | 2006-12-13 | 弗罗纽斯国际有限公司 | Device and method for identifying defects during the feeding of a welding rod |
| CN202240037U (en) * | 2011-07-11 | 2012-05-30 | 无锡市斯威克光伏自动化设备有限公司 | A material feeding induction device and welding machine for a solar cell sheet tin-coated ribbon welding machine |
| CN202240036U (en) * | 2011-07-11 | 2012-05-30 | 无锡市斯威克光伏自动化设备有限公司 | Material belt front end induction structure for solar cell welding machine and welding machine |
| CN203031084U (en) * | 2013-01-15 | 2013-07-03 | 广州松兴电器有限公司 | Brazing filler metal tensioning detection device in automatic braze welding |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0471775A (en) * | 1990-07-10 | 1992-03-06 | Hamamoto Technical Kk | Automatic brazing method and automatic brazing machine used therefor |
| JP5392238B2 (en) * | 2010-11-16 | 2014-01-22 | ダイキン工業株式会社 | Brazing material supply mechanism and automatic welding apparatus equipped with the same |
-
2013
- 2013-01-15 CN CN201310012539.4A patent/CN103056475B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1289251C (en) * | 2001-04-24 | 2006-12-13 | 弗罗纽斯国际有限公司 | Device and method for identifying defects during the feeding of a welding rod |
| CN202240037U (en) * | 2011-07-11 | 2012-05-30 | 无锡市斯威克光伏自动化设备有限公司 | A material feeding induction device and welding machine for a solar cell sheet tin-coated ribbon welding machine |
| CN202240036U (en) * | 2011-07-11 | 2012-05-30 | 无锡市斯威克光伏自动化设备有限公司 | Material belt front end induction structure for solar cell welding machine and welding machine |
| CN203031084U (en) * | 2013-01-15 | 2013-07-03 | 广州松兴电器有限公司 | Brazing filler metal tensioning detection device in automatic braze welding |
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| CN103056475A (en) | 2013-04-24 |
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Address after: 510530 Guangdong city of Guangzhou province YUNPU Industrial Zone Guangzhou Development Zone No. 2 Junlu cloud Patentee after: GUANGZHOU SONGXING ELECTRIC Co.,Ltd. Address before: 510530 Guangdong city of Guangzhou province YUNPU Industrial Zone Guangzhou Development Zone No. 2 Junlu cloud Patentee before: GUANGZHOU SONGXING ELECTRICAL Co.,Ltd. Address after: 510530 Guangdong city of Guangzhou province YUNPU Industrial Zone Guangzhou Development Zone No. 2 Junlu cloud Patentee after: GUANGZHOU SONGXING ELECTRICAL Co.,Ltd. Address before: 510530 Guangdong city of Guangzhou province YUNPU Industrial Zone Guangzhou Development Zone No. 2 Junlu cloud Patentee before: Guangzhou Songxing Electrical Co.,Ltd. |
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Effective date of registration: 20240913 Granted publication date: 20141210 |
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