CN114378140B - Correction device and correction method for welding deformation of thin steel plate stud - Google Patents
Correction device and correction method for welding deformation of thin steel plate stud Download PDFInfo
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- CN114378140B CN114378140B CN202111610977.1A CN202111610977A CN114378140B CN 114378140 B CN114378140 B CN 114378140B CN 202111610977 A CN202111610977 A CN 202111610977A CN 114378140 B CN114378140 B CN 114378140B
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 65
- 239000010959 steel Substances 0.000 title claims abstract description 65
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000003466 welding Methods 0.000 title claims abstract description 21
- 238000005192 partition Methods 0.000 claims abstract 2
- 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
- 238000000638 solvent extraction Methods 0.000 claims 2
- 230000011218 segmentation Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001186 cumulative effect Effects 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
Classifications
-
- 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 thin steel plate stud welding deformation correcting device and a correcting method, which are characterized in that a large-area thin steel plate is firstly partitioned, studs are firstly welded on partition lines, a portal frame and an adjusting device are used for correcting and fixing to form a plurality of rigidity units, then studs are sequentially welded in each rigidity unit, and the deformation of the steel plate is corrected by using the portal frame and a correcting component until all the studs are welded and fixed and the steel plate is corrected in place, so that the difficult problems that the large-area stud welding of the thin steel plate is easy to deform and difficult to correct are solved.
Description
Technical Field
The invention belongs to the technical field of steel structure processing, and particularly relates to a thin steel plate stud welding deformation correction device and a correction method.
Background
In the steel-concrete structure, the large-area shearing-resistant stud is designed on the steel plate with the thickness of 6-12 mm, and the deformation is relatively large after welding. Typical peg arrangements are in a 150mm to 200mm pitch matrix arrangement, with each spot weld deformation not being significant, but cumulative deformation severely affects the appearance and stress on the component.
The traditional correction treatment method has two methods, namely flame correction, and a gas welding gun is used for heating the back surface of the steel plate at the corresponding position of the welding spot. The method has the advantages of high technical requirements on workers, possibility of scrapping poorly controlled components, slow effect and high cost. And secondly, mechanical correction, namely directly knocking the deformation part by a large hammer. The method has the advantages of high labor intensity, low efficiency, high noise, easy dust emission and environmental protection.
Disclosure of Invention
The invention aims to provide a correction device and a correction method for welding deformation of a thin steel plate stud aiming at the technical requirements.
In order to achieve the above purpose, the present invention adopts the following technical scheme: a thin steel plate stud welding deformation correcting device is 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, correction subassembly is including correcting screw rod, stop nut, adjusting nut and bolt head fixture, bolt head fixture is fixed in the bottom of correcting screw rod, adjusting nut and stop nut interval and correction screw rod spiro union about, correction screw rod top, adjusting nut and crossbeam top surface butt, stop nut and crossbeam bottom surface butt.
According to the scheme, the cross beam and the stand column are all made of rectangular steel pipes and are fixedly connected through bolts.
According to the scheme, the through hole is in a waist shape.
A correction method of a correction device for welding deformation of a thin steel plate stud is characterized in that the deformation of the steel plate specifically comprises two situations: the positions of the bolts on the top surface of the steel plate are concavely deformed and convexly deformed, and when the positions are concavely deformed, the correction process is as follows:
s1) arranging at least two groups of door frames according to the requirement of the welding area of the bolts, and calculating the theoretical height value of the limit nut on the correction screw according to the specification of the bolts and the height dimension of the door frames;
s2) according to the theoretical value of the limit nut on the screw rod and according to the rebound value of the steel plate concave deformation correction experience, the pre-adding amount is considered, and the position of the limit nut is adjusted and fixed;
s3) arranging a portal on a steel plate, penetrating a correction screw rod fixed with a limit nut into a through hole of a beam at a position corresponding to the bolt, clamping a bolt head clamp at the lower end of the correction screw rod to clamp a bolt cap, enabling the correction screw rod to be perpendicular to the beam, and screwing an adjusting nut forward by an electric wrench at the upper end of the correction screw rod, and moving the correction screw rod upwards;
s4) after all the first portal frame adjusting nuts are screwed in place, a second portal frame is arranged on the adjacent row of the bolt nails, the steps are repeated, then the adjusting nuts on the first portal frame are loosened, and the flatness of the steel plate at the corrected bolt nails is checked in time;
s5) when the flatness of the steel plate cannot meet the standard requirement, timely compensating and correcting, recording an adjustment value and providing experience data for later correction; when the flatness of the adjusted steel plate meets the standard requirement, the steel plate is moved forwards to the position of the bolt pin in front of the second portal for correction, and the steel plate is sequentially circulated until the correction of the whole steel plate is completed;
when the deformation is upward convex deformation, the functions of the limit nut and the adjusting nut are interchanged, the height theoretical value of the adjusting nut on the correction screw is calculated according to the calculation method, the position of the adjusting nut is adjusted and fixed according to the rebound value of the upward convex deformation correction experience of the steel plate, after the mounting portal is aligned with the stud for clamping, the limit nut is reversely screwed, the correction screw moves downwards, and then the downward concave deformation correction step is repeated, so that the upward convex deformation correction is completed.
According to the scheme, when the adjusting nuts are screwed in the step S3, when the deformation of the steel plate is large, the screwing is stopped, the adjusting nuts of the adjacent one bolt are screwed, all the adjusting nuts on the portal are screwed once, and then the adjusting nuts are screwed again in sequence until the adjusting nuts and the limiting nuts are propped against the cross beam.
The beneficial effects of the invention are as follows: the thin steel plate stud welding deformation correction device and the correction method can accurately correct local deformation of the thin steel plate caused by each stud welding, can be used for correcting deformation of the thin steel plate after large-area shear stud welding, are free of fire and hammering, are 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, good in economy and simple in deformation, and can be suitable for various construction conditions.
Drawings
FIG. 1 is a schematic diagram of a corrective procedure according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a calibration device according to an embodiment of the invention.
Fig. 3 is a schematic structural view of a gantry according to an embodiment of the present invention.
Fig. 4 is a schematic structural view of a correction screw according to an embodiment of the present invention.
Detailed Description
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 correction device comprises a portal 1 and a correction component 2, wherein the portal is composed of an upright post and a cross beam, a plurality of through holes 3 are uniformly formed in the cross beam at intervals, the correction component comprises a correction screw 4, a limit nut 5, an adjusting nut 6 and a stud head clamp 7, the stud head clamp is fixed at the bottom of the correction screw, the adjusting nut and the limit nut are vertically spaced and are in threaded connection with the correction screw, the top of the correction screw is abutted with the top surface of the cross beam, and the limit nut is abutted with the bottom surface of the cross beam.
The cross beam and the upright posts are made of rectangular steel pipes and are fixedly connected through bolts, and the cross beam is perforated from the center to two sides according to 50mm modulus drills. The through holes can be in a waist round shape, and the positions can be adjusted in a small scale according to the distances between the pegs.
The correction method by adopting the correction device comprises the following steps:
the deformation of the steel sheet specifically includes two cases: the stud on the top surface of the steel plate is deformed in a concave manner and is deformed in a convex manner, and when the stud is deformed in a concave manner, the correction process is as follows:
s1) arranging at least two groups of door frames according to the welding area requirement of the bolts 8, and calculating the theoretical height value of the limit nut on the correction screw according to the specification of the bolts and the height dimension of the door frames;
s2) according to the theoretical value of the limit nut on the screw rod and according to the rebound value of the steel plate concave deformation correction experience, the pre-adding amount is considered, and the position of the limit nut is adjusted and fixed;
s3) arranging a portal on a steel plate, penetrating a correction screw rod fixed with a limit nut into a through hole of a beam at a position corresponding to the bolt, clamping a bolt head clamp at the lower end of the correction screw rod to clamp a bolt cap, enabling the correction screw rod to be perpendicular to the beam, and screwing an adjusting nut forward by an electric wrench at the upper end of the correction screw rod, and moving the correction screw rod upwards;
s4) after all the first portal frame adjusting nuts are screwed in place, a second portal frame is arranged on the adjacent row of the bolt nails (see figure 1), the steps are repeated, then the adjusting nuts on the first portal frame are loosened, and the flatness of the steel plate at the corrected bolt nails is checked in time;
s5) when the flatness of the steel plate cannot meet the standard requirement, timely compensating and correcting, recording an adjustment value and providing experience data for later correction; when the flatness of the adjusted steel plate meets the standard requirement, the steel plate is moved forwards to the position of the bolt pin in front of the second portal for correction, and the steel plate is sequentially circulated until the correction of the whole steel plate is completed;
when the deformation is upward convex deformation, the functions of the limit nut and the adjusting nut are interchanged, the height theoretical value of the adjusting nut on the correction screw is calculated according to the calculation method, the position of the adjusting nut is adjusted and fixed according to the rebound value of the upward convex deformation correction experience of the steel plate, after the mounting portal is aligned with the stud for clamping, the limit nut is reversely screwed, the correction screw moves downwards, and then the downward concave deformation correction step is repeated, so that the upward convex deformation correction is completed.
When the adjusting nuts are screwed, when the deformation of the steel plate is large, the screwing is stopped firstly, the adjusting nuts of the adjacent one bolt nail are screwed, after all the adjusting nuts on the portal are screwed once, the adjusting nuts are screwed again in sequence, and the screwing is stopped until the adjusting nuts and the limiting nuts are propped against the cross beam.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (3)
1. The utility model provides a correction method of sheet steel stud welding deformation, correction device includes portal and correction subassembly, the portal comprises stand and crossbeam, and crossbeam and stand are made by rectangular steel pipe, and through bolted connection is fixed, even interval is equipped with a plurality of through-holes on the crossbeam, and the through-hole is the waist circle shape, correction subassembly includes correction screw rod, stop nut, adjusting nut and stud head fixture, stud head fixture is fixed in the bottom of correction screw rod, adjusting nut and stop nut upper and lower interval and correction screw rod spiro union, correction screw rod top, adjusting nut and crossbeam top surface butt, stop nut and crossbeam bottom surface butt, its characterized in that: the method comprises the following steps:
s1) firstly dividing a steel plate into a plurality of small areas, correcting the steel plate according to the areas, wherein the distribution shape of the studs is close to a square, and the studs are preferably partitioned by a cross partition method, and the distribution strips of the studs are preferably partitioned by a segmentation method;
s2) after partitioning, in order to reduce the integral deformation, the studs on the partitioning lines are welded and then corrected and fixed by a portal frame, so that the integral rigidity of the steel plate is increased;
s3) after the steel plate is partitioned and fixed, the pegs in each region are welded and corrected in sequence, so that the purpose of accurately leveling the whole steel plate is achieved.
2. The correction method of a sheet steel stud welding deformation correction device according to claim 1, characterized in that the sheet steel deformation specifically includes two cases: the positions of the bolts on the top surface of the steel plate are concavely deformed and convexly deformed, and when the positions are concavely deformed, the correction process is as follows:
s1) arranging at least two groups of door frames according to the requirement of the welding area of the bolts, and calculating the theoretical height value of the limit nut on the correction screw according to the specification of the bolts and the height dimension of the door frames;
s2) according to the theoretical value of the limit nut on the screw rod and according to the rebound value of the steel plate concave deformation correction experience, the pre-adding amount is considered, and the position of the limit nut is adjusted and fixed;
s3) arranging a portal on a steel plate, penetrating a correction screw rod fixed with a limit nut into a through hole of a beam at a position corresponding to the bolt, clamping a bolt head clamp at the lower end of the correction screw rod to clamp a bolt cap, enabling the correction screw rod to be perpendicular to the beam, and screwing an adjusting nut forward by an electric wrench at the upper end of the correction screw rod, and moving the correction screw rod upwards;
s4) after all the first portal frame adjusting nuts are screwed in place, a second portal frame is arranged on the adjacent row of the bolt nails, the steps are repeated, then the adjusting nuts on the first portal frame are loosened, and the flatness of the steel plate at the corrected bolt nails is checked in time;
s5) when the flatness of the steel plate cannot meet the standard requirement, timely compensating and correcting, recording an adjustment value and providing experience data for later correction; when the flatness of the adjusted steel plate meets the standard requirement, the steel plate is moved forwards to the position of the bolt pin in front of the second portal for correction, and the steel plate is sequentially circulated until the correction of the whole steel plate is completed;
when the deformation is upward convex deformation, the functions of the limit nut and the adjusting nut are interchanged, the height theoretical value of the adjusting nut on the correction screw is calculated according to the calculation method, the position of the adjusting nut is adjusted and fixed according to the rebound value of the upward convex deformation correction experience of the steel plate, after the mounting portal is aligned with the stud for clamping, the limit nut is reversely screwed, the correction screw moves downwards, and then the downward concave deformation correction step is repeated, so that the upward convex deformation correction is completed.
3. The correction method of the correction device for welding deformation of steel plate studs according to claim 2, wherein when the adjusting nuts are screwed in the step S3, the screwing is stopped when the deformation of the steel plate is large, the adjusting nuts of the adjacent stud are screwed, all the adjusting nuts on the portal are screwed once, and then the adjusting nuts are screwed again in sequence until the adjusting nuts and the limit nuts are stopped when the cross beam is pressed.
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 |
|---|---|
| CN114378140A CN114378140A (en) | 2022-04-22 |
| CN114378140B true CN114378140B (en) | 2023-11-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111610977.1A Active 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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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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| Publication number | Publication date |
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| CN114378140A (en) | 2022-04-22 |
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