CN113664328A - Intelligent positioning welding method for turnover crossbeam - Google Patents
Intelligent positioning welding method for turnover crossbeam Download PDFInfo
- Publication number
- CN113664328A CN113664328A CN202111047897.XA CN202111047897A CN113664328A CN 113664328 A CN113664328 A CN 113664328A CN 202111047897 A CN202111047897 A CN 202111047897A CN 113664328 A CN113664328 A CN 113664328A
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- Prior art keywords
- welding
- girder
- positioning
- turnover
- intelligent positioning
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/16—Arc welding or cutting making use of shielding gas
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/32—Accessories
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J11/00—Manipulators not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/28—Beams
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Robotics (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention relates to the technical field of welding, in particular to an intelligent positioning welding method for an overturning girder. According to the intelligent positioning welding method for the turnover girder, the girder is fastened and clamped by using the positioning fixture, the welding surface of the girder is matched with the welding frame by adjusting the angle of the push head of the oil cylinder, if a gap or unevenness occurs, the welding surface needs to be polished by using a polisher, the joint of the welding surface of the girder and the welding frame is free of gap, flat and clean, and after the girder is preliminarily stabilized by spot welding, the girder is subjected to full-welding treatment from head to tail by using welding equipment. The intelligent positioning welding method for the turnover girder provided by the invention adopts the process of automatic positioning and welding by the robot, so that the production efficiency is improved, the controllability of the welding quality is improved, the width error of the automatic welding seam of the robot can be ensured to be within +/-0.5 mm, the welding seam is continuous and has no joint, the stable welding quality can be obtained even at the corner, and the labor cost of subsequent grinding is greatly reduced.
Description
Technical Field
The invention relates to the technical field of welding, in particular to an intelligent positioning welding method for an overturning girder.
Background
At present, a semitrailer occupies a main position in the transportation industry of China, and the performance of a girder of the semitrailer is related to the performance of the semitrailer. The semitrailer girder is a main bearing part of a semitrailer body, and the semitrailer girder is large in size and weight and is particularly important in the machining process of the semitrailer girder.
The existing automobile beam welding technology needs manual processing or manual operation. The manual assembly welding has the defects that the size and the welding quality are deviated from the design, so that the service life of the girder is reduced; meanwhile, due to the characteristics of scattered welding quantity and various welding positions of the parts, the process execution difficulty and the quality control difficulty of frequent change of the welding positions and frequent arc starting and arc stopping are caused, and the low production efficiency and the high quality cost are inevitably caused by manual assembly of welding work during mass production.
Therefore, it is necessary to provide a new intelligent positioning welding method for the turnover girder to solve the above technical problems.
Disclosure of Invention
In order to solve the technical problem, the invention provides an intelligent positioning welding method for an overturning girder.
The invention provides an intelligent positioning welding method for an overturning girder, which comprises the following steps:
the specific welding method comprises the following steps:
firstly, fastening and clamping a girder by using a positioning clamp, and enabling a welding surface of the girder and a welding frame to be mutually matched by adjusting the angle of a push head of an oil cylinder, and if a gap or an uneven position occurs, polishing the welding surface by using a polishing machine, so that the joint of the welding surface of the girder and the welding frame is free of gaps, flat and clean;
secondly, effectively preheating the welding surface of the girder so as to be conveniently and better fused with a welding wire;
step three, carrying out interval type electric welding on the girder by utilizing welding equipment, wherein the interval distance is 12-16 cm;
fourthly, after the girder is initially stabilized by spot welding, full welding is carried out on the girder from the beginning to the end through welding equipment;
polishing the surface of the unwelded girder by using a polishing machine, and then performing full-weld treatment on the girder from the beginning to the end by using welding equipment to effectively perform full-weld on both sides of the girder;
sixthly, adding a plurality of reinforcing ribs between the girder and the welding frame, and performing reinforcement welding by using welding equipment to ensure the safety of the whole girder structure;
and seventhly, immediately performing heat preservation and dehydrogenation treatment on the welding position by using a heating sheet and heat preservation cotton after welding is finished, and subsequently polishing and grinding the welding position of the girder so as to improve the attractiveness of the welding position of the girder.
Preferably, the positioning fixture realizes the positioning and clamping of a workpiece, the rotation angle is controlled by a motor, the welding of the radiant angle irons with different included angles is adapted, the maximum outer diameter of the positioning fixture is 2.2m, 1-2.2m can be met, the positioning fixture is provided with a sliding block and a positioning clamp, the sliding block is in sliding connection with the welding fixture through a sliding groove, the inner ring and the outer ring can be clamped and positioned during working, and the clamping jaw can be loosened, clamped and moved radially to realize the positioning and welding of the inner ring and the outer ring with different diameters and correct the center position.
Preferably, the welding equipment adopts a welding robot with the model of KR8R1620, the working arm of the welding equipment is stretched to 1620mm, the cable reel with the outer diameter of 1-2.2m can be met, the grabbing weight is 8kg, and the position repetition precision is +/-0.04 mm.
Preferably, the welding voltage is 17-20V, the welding current is 70-120A, the welding speed is 10-15L/min, and the welding power supply adopts a three-phase AC380V +/-10% inverter type welding power supply with the load duration rate being more than or equal to 60%.
Preferably, the girder welding protective gas adopts CO2 protective gas, can improve the welding seam quality, reduces the width that the welding seam heating effect brought, avoids the material oxidation.
Preferably, the welding wire is selected from H08Mn2SiA welding wire with deoxidizing elements of Si and Mn, and the diameter of the welding wire is 1.0 mm.
Compared with the prior art, the intelligent positioning welding method for the turnover girder has the following beneficial effects:
the invention provides an intelligent positioning welding method for an overturning girder, which adopts a robot automatic positioning and welding process, not only improves the production efficiency, but also improves the controllability of the welding quality, ensures that the width error of a welding seam automatically welded by a robot can be within +/-0.5 mm, has continuous and jointless welding seams, can obtain stable welding quality even at corners, and greatly reduces the labor cost of subsequent grinding.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Specific implementations of the present invention are described in detail below with reference to specific embodiments.
The embodiment of the invention provides an intelligent positioning welding method for an overturning girder, which comprises the following steps:
the specific welding method comprises the following steps:
firstly, fastening and clamping a girder by using a positioning clamp, and enabling a welding surface of the girder and a welding frame to be mutually matched by adjusting the angle of a push head of an oil cylinder, and if a gap or an uneven position occurs, polishing the welding surface by using a polishing machine, so that the joint of the welding surface of the girder and the welding frame is free of gaps, flat and clean;
secondly, effectively preheating the welding surface of the girder so as to be conveniently and better fused with a welding wire;
step three, carrying out interval type electric welding on the girder by utilizing welding equipment, wherein the interval distance is 12-16 cm;
fourthly, after the girder is initially stabilized by spot welding, full welding is carried out on the girder from the beginning to the end through welding equipment;
polishing the surface of the unwelded girder by using a polishing machine, and then performing full-weld treatment on the girder from the beginning to the end by using welding equipment to effectively perform full-weld on both sides of the girder;
sixthly, adding a plurality of reinforcing ribs between the girder and the welding frame, and performing reinforcement welding by using welding equipment to ensure the safety of the whole girder structure;
and seventhly, immediately performing heat preservation and dehydrogenation treatment on the welding position by using a heating sheet and heat preservation cotton after welding is finished, and subsequently polishing and grinding the welding position of the girder so as to improve the attractiveness of the welding position of the girder.
In the present embodiment: the positioning fixture is used for realizing the positioning and clamping of a workpiece, the rotation angle is controlled by a motor, the welding of the radiant angle irons with different included angles is adapted, the maximum outer diameter of the positioning fixture is 2.2m and can meet 1-2.2m, the positioning fixture is provided with a sliding block and a positioning clamp, the sliding block is in sliding connection with the welding fixture through a sliding chute, the clamping and positioning of the inner ring and the outer ring can be realized during the work, and the clamping jaws are loosened, clamped and moved radially to realize the positioning and welding of the inner ring and the outer ring with different diameters and correct the center position; the welding equipment adopts a welding robot with the model of KR8R1620, the working arm of the welding equipment is 1620mm, the outer diameter of the welding equipment can meet the requirement of a cable reel with the diameter of 1-2.2m, the grabbing weight is 8kg, and the position repetition precision is +/-0.04 mm; the welding voltage is 17-20V, the welding current is 70-120A, the welding speed is 10-15L/min, and the welding power supply adopts an AC380V +/-10% three-phase inverter type welding power supply with the load duration rate being more than or equal to 60%.
The welding wire is H08Mn2Si A welding wire with deoxidizing elements Si and Mn, and the diameter of the welding wire is 1.0 mm.
It should be noted that: the girder welding method adopts the process of automatic positioning and welding by the robot, so that the production efficiency is improved, the controllability of the welding quality is improved, the width error of the automatic welding seam of the robot can be ensured within +/-0.5 mm, the welding seam is continuous and has no joint, the stable welding quality can be obtained even at the corner, and the labor cost of subsequent grinding is greatly reduced.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (6)
1. An intelligent positioning welding method for an overturning girder is characterized by comprising the following specific welding methods:
firstly, fastening and clamping a girder by using a positioning clamp, and enabling a welding surface of the girder and a welding frame to be mutually matched by adjusting the angle of a push head of an oil cylinder, and if a gap or an uneven position occurs, polishing the welding surface by using a polishing machine, so that the joint of the welding surface of the girder and the welding frame is free of gaps, flat and clean;
secondly, effectively preheating the welding surface of the girder so as to be conveniently and better fused with a welding wire;
step three, carrying out interval type electric welding on the girder by utilizing welding equipment, wherein the interval distance is 12-16 cm;
fourthly, after the girder is initially stabilized by spot welding, full welding is carried out on the girder from the beginning to the end through welding equipment;
polishing the surface of the unwelded girder by using a polishing machine, and then performing full-weld treatment on the girder from the beginning to the end by using welding equipment to effectively perform full-weld on both sides of the girder;
sixthly, adding a plurality of reinforcing ribs between the girder and the welding frame, and performing reinforcement welding by using welding equipment to ensure the safety of the whole girder structure;
and seventhly, immediately performing heat preservation and dehydrogenation treatment on the welding position by using a heating sheet and heat preservation cotton after welding is finished, and subsequently polishing and grinding the welding position of the girder so as to improve the attractiveness of the welding position of the girder.
2. The intelligent positioning and welding method for the turnover girder according to claim 1, wherein the positioning and clamping of the workpiece are realized by the positioning fixture, the rotation angle is controlled by a motor, the intelligent positioning and welding method is suitable for the welding of the radiant angle irons with different included angles, the maximum outer diameter of the positioning fixture is 2.2m, the maximum outer diameter of the positioning fixture can meet 1-2.2m, the positioning fixture is provided with a sliding block and a positioning clamp, the sliding block is connected with the welding fixture in a sliding mode through a sliding groove, the clamping and positioning of the inner ring and the outer ring can be realized during the working, and the clamping jaw is loosened, clamped and moves radially to realize the positioning and welding of the inner ring and the outer ring with different diameters and correct the center position.
3. The intelligent positioning welding method for the turnover girder according to claim 1, wherein the welding equipment adopts a welding robot with the model of KR8R1620, the working arm of the welding equipment has the spread of 1620mm, the cable reel with the outer diameter of 1-2.2m can be met, the grabbing weight is 8kg, and the position repetition precision is +/-0.04 mm.
4. The intelligent positioning welding method for the turnover girder according to claim 1, wherein the welding voltage is 17-20V, the welding current is 70-120A, the welding speed is 10-15L/min, and the welding power supply adopts an AC380V +/-10% three-phase inverter type welding power supply with a load duration rate of more than or equal to 60%.
5. The intelligent positioning welding method for the turnover girder according to claim 1, wherein CO2 shielding gas is adopted as girder welding shielding gas, so that the welding seam quality can be improved, the width caused by the heating action of the welding seam is reduced, and the material oxidation is avoided.
6. The intelligent positioning welding method for the turnover girder according to claim 1, wherein the welding wire is H08Mn2siA welding wire with deoxidizing elements of Si and Mn, and the diameter of the welding wire is 1.0 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111047897.XA CN113664328A (en) | 2021-09-08 | 2021-09-08 | Intelligent positioning welding method for turnover crossbeam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111047897.XA CN113664328A (en) | 2021-09-08 | 2021-09-08 | Intelligent positioning welding method for turnover crossbeam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113664328A true CN113664328A (en) | 2021-11-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111047897.XA Pending CN113664328A (en) | 2021-09-08 | 2021-09-08 | Intelligent positioning welding method for turnover crossbeam |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104942458A (en) * | 2015-07-13 | 2015-09-30 | 浙江协升机器人科技有限公司 | Automatic welding equipment for H-type automobile frame |
| CN208854048U (en) * | 2018-10-19 | 2019-05-14 | 重庆海众科技有限公司 | Crossbeam soldering cramping apparatus assembly before a kind of automobile |
| US20190270157A1 (en) * | 2016-07-27 | 2019-09-05 | Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | Welding device |
| CN110625228A (en) * | 2019-10-18 | 2019-12-31 | 许智勇 | Semitrailer girder welding process |
| CN111055073A (en) * | 2020-01-08 | 2020-04-24 | 丁童 | Automatic welding equipment for automobile beam |
| CN213622842U (en) * | 2020-09-28 | 2021-07-06 | 长治市豪力钢结构有限公司 | Girder steel construction stands up frock |
-
2021
- 2021-09-08 CN CN202111047897.XA patent/CN113664328A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104942458A (en) * | 2015-07-13 | 2015-09-30 | 浙江协升机器人科技有限公司 | Automatic welding equipment for H-type automobile frame |
| US20190270157A1 (en) * | 2016-07-27 | 2019-09-05 | Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | Welding device |
| CN208854048U (en) * | 2018-10-19 | 2019-05-14 | 重庆海众科技有限公司 | Crossbeam soldering cramping apparatus assembly before a kind of automobile |
| CN110625228A (en) * | 2019-10-18 | 2019-12-31 | 许智勇 | Semitrailer girder welding process |
| CN111055073A (en) * | 2020-01-08 | 2020-04-24 | 丁童 | Automatic welding equipment for automobile beam |
| CN213622842U (en) * | 2020-09-28 | 2021-07-06 | 长治市豪力钢结构有限公司 | Girder steel construction stands up frock |
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Application publication date: 20211119 |
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| RJ01 | Rejection of invention patent application after publication |