CN114378140A - Device and method for correcting welding deformation of thin steel plate stud - Google Patents
Device and method for correcting welding deformation of thin steel plate stud Download PDFInfo
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- CN114378140A CN114378140A CN202111610977.1A CN202111610977A CN114378140A CN 114378140 A CN114378140 A CN 114378140A CN 202111610977 A CN202111610977 A CN 202111610977A CN 114378140 A CN114378140 A CN 114378140A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 66
- 239000010959 steel Substances 0.000 title claims abstract description 66
- 238000003466 welding Methods 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 21
- 230000008569 process Effects 0.000 claims description 4
- 238000004364 calculation method Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 125000003003 spiro group Chemical group 0.000 claims description 2
- 238000005192 partition Methods 0.000 claims 2
- 238000000638 solvent extraction Methods 0.000 claims 2
- 230000011218 segmentation Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention relates to a device and a method for correcting the welding deformation of thin steel plate studs, which are characterized in that a large-area thin steel plate is divided into regions, studs are welded on a dividing line firstly, a portal frame and an adjusting device are used for correcting and fixing to form a plurality of rigidity units, the studs are welded in the rigidity units in sequence, and the deformation of a steel plate is corrected by the portal frame and a correcting assembly until all the studs are welded and fixed and the steel plate is corrected in place.
Description
Technical Field
The invention belongs to the technical field of steel structure processing, and particularly relates to a device and a method for correcting welding deformation of thin steel plate studs.
Background
The large-area shear-resistant stud is designed on a 6-12 mm steel plate in a steel-concrete structure, and the deformation is large after welding. The general bolt setting is a matrix arrangement with a distance of 150 mm-200 mm, the welding deformation of each spot is not very large, but the accumulated deformation seriously influences the appearance and is unfavorable for the stress of the component.
The traditional correction treatment methods comprise two methods, namely flame correction, wherein an air welding gun is used for heating the reverse side of the steel plate at the corresponding position of a welding spot. The method has the advantages of high technical requirements on workers, low effect and high cost, and components which are not well controlled can be scrapped. And secondly, mechanical correction, namely directly knocking the deformed part by a sledge hammer. The method has the advantages of high labor intensity, low efficiency, high noise, easy dust raising and no environmental protection.
Disclosure of Invention
The present invention is directed to provide a device and a method for correcting welding deformation of sheet steel stud.
In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a sheet steel stud welding deformation correcting unit which characterized in that: including portal and correction subassembly, the portal comprises stand and crossbeam, even interval is equipped with a plurality of through-holes on the crossbeam, the correction subassembly includes correction screw rod, limit nut, adjusting nut and stud head fixture, stud head fixture is fixed in the bottom of correction screw rod, interval and correction screw rod spiro union about adjusting nut and the limit nut, correction screw rod top, adjusting nut and crossbeam top surface butt, limit nut and crossbeam bottom surface butt.
According to the scheme, the cross beam and the upright post are both made of rectangular steel pipes and are fixedly connected through bolts.
According to the scheme, the through hole is in a waist circular shape.
A correction method of a thin steel plate stud welding deformation correction device is characterized in that steel plate deformation specifically comprises two conditions: the positions of the studs on the top surface of the steel plate are concavely deformed and convexly deformed, and when the studs are concavely deformed, the correction process is as follows:
s1) arranging at least two groups of door frames according to the welding area requirement of the stud, and calculating the theoretical height value of the limiting nut on the correcting screw rod according to the specification of the stud and the height size of the door frames;
s2) according to the theoretical value of the limiting nut on the screw rod and the springback value of the steel plate concave deformation correction experience, considering the pre-amount, adjusting the position of the limiting nut and fixing;
s3) arranging the portal frame on the steel plate, penetrating a correcting screw fixed with a limiting nut into a through hole of the cross beam at the corresponding position of the stud, clamping a stud head clamp at the lower end of the correcting screw to enable the correcting screw to be vertical to the cross beam, and screwing an adjusting nut forward by using an electric wrench at the upper end to move the correcting screw upwards;
s4) after the adjusting nuts of the first portal are all screwed in place, arranging a second portal on the studs in the adjacent row, repeating the steps, then loosening the adjusting nuts on the first portal, and checking the flatness of the steel plate at the corrected studs in time;
s5) when the flatness of the steel plate can not meet the standard requirement, timely correcting, and recording an adjustment value to provide empirical data for later correction; when the flatness of the steel plate is adjusted to meet the standard requirement, the steel plate is moved forwards to the position of a row of studs in front of the second portal for correction, and the steps are sequentially circulated until the whole steel plate is corrected;
and when the deformation is the upward convex deformation, the functions of the limiting nut and the adjusting nut are exchanged, the height theoretical value of the adjusting nut on the correcting screw rod is calculated according to the calculation method, pre-amount is considered according to the resilience value of the upward convex deformation correcting experience of the steel plate, the position of the adjusting nut is adjusted and fixed, the limiting nut is reversely screwed after the mounting portal is aligned with the stud and clamped, the correcting screw rod moves downwards, and then the step of correcting the downward concave deformation is repeated to finish the correction of the upward convex deformation.
According to the scheme, when the adjusting nuts are screwed down in the step S3, when the steel plate is deformed greatly, the screwing is stopped firstly, the adjusting nuts of the adjacent stud are screwed down, and after all the adjusting nuts on the door frame are screwed down once, the adjusting nuts are screwed down again in sequence until the adjusting nuts and the limiting nuts stop pressing against the beam.
The invention has the beneficial effects that: the device and the method for correcting the welding deformation of the thin steel plate studs can accurately correct the local deformation of the thin steel plate caused by welding of each stud, can be used for correcting the deformation of the thin steel plate after welding of the studs for large-area shearing resistance, are free of baking and hammering, convenient to operate, simple and effective in structure, small in potential safety hazard, high in correction precision, convenient to operate, high in working efficiency, low in investment and good in economy, and simple in deformation can adapt to various construction conditions.
Drawings
Fig. 1 is a schematic view of a rectification process according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a calibration apparatus according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a gantry according to an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a correcting screw according to an embodiment of the present invention.
Detailed Description
The embodiments of the present invention will now be described with reference to the accompanying drawings, and the present invention is not limited to the following examples.
As shown in fig. 2-4, a thin steel plate stud welding deformation correcting device comprises a portal 1 and a correcting component 2, wherein the portal is composed of a stand column and a cross beam, a plurality of through holes 3 are uniformly arranged on the cross beam at intervals, the correcting component comprises a correcting screw 4, a limiting nut 5, an adjusting nut 6 and a stud head clamp 7, the stud head clamp is fixed at the bottom of the correcting screw, the adjusting nut and the limiting nut are in threaded connection with the correcting screw at intervals from top to bottom, the top of the correcting screw is abutted to the top surface of the cross beam, and the limiting nut is abutted to the bottom surface of the cross beam.
The cross beam and the upright posts are both made of rectangular steel pipes and are fixedly connected through bolts, and the cross beam drills through holes from the center to two sides according to a modulus of 50 mm. The through holes can be in a waist shape, and the positions can be adjusted in a small range according to the distance between the studs.
The method for correcting by adopting the correcting device comprises the following steps:
the deformation of the steel plate specifically comprises two situations: the positions of the studs on the top surface of the steel plate are concavely deformed and convexly deformed, and when the studs are concavely deformed, the correcting process is as follows:
s1) arranging at least two groups of door frames according to the welding area requirement of the stud 8, and calculating the theoretical height value of the limiting nut on the correcting screw rod according to the stud specification and the height size of the door frames;
s2) according to the theoretical value of the limiting nut on the screw rod and the springback value of the steel plate concave deformation correction experience, considering the pre-amount, adjusting the position of the limiting nut and fixing;
s3) arranging the portal frame on the steel plate, penetrating a correcting screw fixed with a limiting nut into a through hole of the cross beam at the corresponding position of the stud, clamping a stud head clamp at the lower end of the correcting screw to enable the correcting screw to be vertical to the cross beam, and screwing an adjusting nut forward by using an electric wrench at the upper end to move the correcting screw upwards;
s4) after the adjusting nuts of the first portal are all screwed in place, arranging a second portal (see figure 1) on the studs in the adjacent row, repeating the steps, then loosening the adjusting nuts on the first portal, and checking the flatness of the steel plate at the corrected studs in time;
s5) when the flatness of the steel plate can not meet the standard requirement, timely correcting, and recording an adjustment value to provide empirical data for later correction; when the flatness of the steel plate is adjusted to meet the standard requirement, the steel plate is moved forwards to the position of a row of studs in front of the second portal for correction, and the steps are sequentially circulated until the whole steel plate is corrected;
and when the deformation is the upward convex deformation, the functions of the limiting nut and the adjusting nut are exchanged, the height theoretical value of the adjusting nut on the correcting screw rod is calculated according to the calculation method, pre-amount is considered according to the resilience value of the upward convex deformation correcting experience of the steel plate, the position of the adjusting nut is adjusted and fixed, the limiting nut is reversely screwed after the mounting portal is aligned with the stud and clamped, the correcting screw rod moves downwards, and then the step of correcting the downward concave deformation is repeated to finish the correction of the upward convex deformation.
When the adjusting nuts are screwed down, when the steel plate is deformed greatly, the steel plate stops being screwed down firstly, the adjusting nuts of the adjacent studs are screwed down, after all the adjusting nuts on the portal are screwed down once, the adjusting nuts are screwed down again in sequence, and the steel plate stops when the adjusting nuts and the limiting nuts prop up the cross beam.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. The utility model provides a sheet steel stud welding deformation correcting unit which characterized in that: including portal and correction subassembly, the portal comprises stand and crossbeam, even interval is equipped with a plurality of through-holes on the crossbeam, the correction subassembly includes correction screw rod, limit nut, adjusting nut and stud head fixture, stud head fixture is fixed in the bottom of correction screw rod, interval and correction screw rod spiro union about adjusting nut and the limit nut, correction screw rod top, adjusting nut and crossbeam top surface butt, limit nut and crossbeam bottom surface butt.
2. The apparatus for correcting weld distortion of a thin steel plate stud according to claim 1, wherein said cross member and said pillar are each made of a rectangular steel pipe and fixed by bolting.
3. The sheet steel stud welding deformation correcting device according to claim 1 or 2, wherein the through hole is a waist circle.
4. A method for correcting welding deformation of a thin steel plate stud is characterized by comprising the following steps: the method comprises the following steps:
s1) dividing the steel plate into several small areas, correcting the steel plate according to the areas, wherein the distribution shape of the studs is approximate to a square, and the studs are distributed in long strips, and the studs are partitioned by adopting a segmentation method;
s2), after partitioning, in order to reduce overall deformation, the stud on the partitioning line is welded, corrected and fixed by a portal frame, and the overall rigidity of the steel plate is increased;
s3), after the steel plate is fixed in a partition mode, the studs in each partition are welded and corrected in sequence, and the purpose of accurately leveling the whole steel plate is achieved.
5. The method for correcting a welding deformation correcting device for a thin steel plate stud according to claim 4, wherein the deformation of the steel plate specifically includes two cases: the positions of the studs on the top surface of the steel plate are concavely deformed and convexly deformed, and when the studs are concavely deformed, the correction process is as follows:
s1) arranging at least two groups of door frames according to the welding area requirement of the stud, and calculating the theoretical height value of the limiting nut on the correcting screw rod according to the specification of the stud and the height size of the door frames;
s2) according to the theoretical value of the limiting nut on the screw rod and the springback value of the steel plate concave deformation correction experience, considering the pre-amount, adjusting the position of the limiting nut and fixing;
s3) arranging the portal frame on the steel plate, penetrating a correcting screw fixed with a limiting nut into a through hole of the cross beam at the corresponding position of the stud, clamping a stud head clamp at the lower end of the correcting screw to enable the correcting screw to be vertical to the cross beam, and screwing an adjusting nut forward by using an electric wrench at the upper end to move the correcting screw upwards;
s4) after the adjusting nuts of the first portal are all screwed in place, arranging a second portal on the studs in the adjacent row, repeating the steps, then loosening the adjusting nuts on the first portal, and checking the flatness of the steel plate at the corrected studs in time;
s5) when the flatness of the steel plate can not meet the standard requirement, timely correcting, and recording an adjustment value to provide empirical data for later correction; when the flatness of the steel plate is adjusted to meet the standard requirement, the steel plate is moved forwards to the position of a row of studs in front of the second portal for correction, and the steps are sequentially circulated until the whole steel plate is corrected;
and when the deformation is the upward convex deformation, the functions of the limiting nut and the adjusting nut are exchanged, the height theoretical value of the adjusting nut on the correcting screw rod is calculated according to the calculation method, pre-amount is considered according to the resilience value of the upward convex deformation correcting experience of the steel plate, the position of the adjusting nut is adjusted and fixed, the limiting nut is reversely screwed after the mounting portal is aligned with the stud and clamped, the correcting screw rod moves downwards, and then the step of correcting the downward concave deformation is repeated to finish the correction of the upward convex deformation.
6. The method for calibrating a welding deformation calibration device for sheet steel studs according to claim 5, wherein in step S3, when the deformation of the steel plate is large, the tightening of the adjusting nuts is stopped, the adjusting nuts of the adjacent stud are tightened, and after all the adjusting nuts on the gantry are tightened, the adjusting nuts are tightened again in sequence until the adjusting nuts and the limiting nuts are tightened against the beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111610977.1A CN114378140B (en) | 2021-12-27 | 2021-12-27 | Correction device and correction method for welding deformation of thin steel plate stud |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111610977.1A CN114378140B (en) | 2021-12-27 | 2021-12-27 | Correction device and correction method for welding deformation of thin steel plate stud |
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| Publication Number | Publication Date |
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| CN114378140A true CN114378140A (en) | 2022-04-22 |
| CN114378140B CN114378140B (en) | 2023-11-07 |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101574779A (en) * | 2009-06-02 | 2009-11-11 | 武汉市人防工程专用设备厂 | Manufacture method of large-scale weld assembly calibrating working platform |
| JP2012139702A (en) * | 2010-12-28 | 2012-07-26 | Ishii Iron Works Co Ltd | Deformation suppression member for welded joint, and deformation suppression method using the deformation suppression member |
| CN202910110U (en) * | 2012-11-07 | 2013-05-01 | 浙江弘道科技有限公司 | Steel plate correction device |
| CN203417962U (en) * | 2013-08-07 | 2014-02-05 | 浙江兴土桥梁专用装备制造有限公司 | Steel pipe roundness correction device for bridge |
| CN204220680U (en) * | 2014-09-05 | 2015-03-25 | 第一拖拉机股份有限公司 | Sheet stamping member correction lamps structure |
| CN104907362A (en) * | 2015-05-19 | 2015-09-16 | 广东韶钢松山股份有限公司 | Correcting method for collapse electric dedusting top plate |
| CN107321818A (en) * | 2017-06-20 | 2017-11-07 | 湖北沛函建设有限公司 | A kind of steel form flattening device and bearing calibration |
| CN109570276A (en) * | 2019-01-16 | 2019-04-05 | 中国长江电力股份有限公司 | Upper Bracket of Hydro Generating Set distortion correction frame and application method |
| CN208936914U (en) * | 2018-12-10 | 2019-06-04 | 浙江威肯特智能机械有限公司 | A kind of means for correcting beated after screw rod of screw pump nitridation |
| CN112942630A (en) * | 2021-04-12 | 2021-06-11 | 中建二局第二建筑工程有限公司 | Construction method of embedded single-piece type steel plate-concrete combined shear wall |
-
2021
- 2021-12-27 CN CN202111610977.1A patent/CN114378140B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101574779A (en) * | 2009-06-02 | 2009-11-11 | 武汉市人防工程专用设备厂 | Manufacture method of large-scale weld assembly calibrating working platform |
| JP2012139702A (en) * | 2010-12-28 | 2012-07-26 | Ishii Iron Works Co Ltd | Deformation suppression member for welded joint, and deformation suppression method using the deformation suppression member |
| CN202910110U (en) * | 2012-11-07 | 2013-05-01 | 浙江弘道科技有限公司 | Steel plate correction device |
| CN203417962U (en) * | 2013-08-07 | 2014-02-05 | 浙江兴土桥梁专用装备制造有限公司 | Steel pipe roundness correction device for bridge |
| CN204220680U (en) * | 2014-09-05 | 2015-03-25 | 第一拖拉机股份有限公司 | Sheet stamping member correction lamps structure |
| CN104907362A (en) * | 2015-05-19 | 2015-09-16 | 广东韶钢松山股份有限公司 | Correcting method for collapse electric dedusting top plate |
| CN107321818A (en) * | 2017-06-20 | 2017-11-07 | 湖北沛函建设有限公司 | A kind of steel form flattening device and bearing calibration |
| CN208936914U (en) * | 2018-12-10 | 2019-06-04 | 浙江威肯特智能机械有限公司 | A kind of means for correcting beated after screw rod of screw pump nitridation |
| CN109570276A (en) * | 2019-01-16 | 2019-04-05 | 中国长江电力股份有限公司 | Upper Bracket of Hydro Generating Set distortion correction frame and application method |
| CN112942630A (en) * | 2021-04-12 | 2021-06-11 | 中建二局第二建筑工程有限公司 | Construction method of embedded single-piece type steel plate-concrete combined shear wall |
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| CN114378140B (en) | 2023-11-07 |
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