CN112207497A - Device capable of converting fillet weld into flat weld and welding deformation control method - Google Patents
Device capable of converting fillet weld into flat weld and welding deformation control method Download PDFInfo
- Publication number
- CN112207497A CN112207497A CN202011107835.9A CN202011107835A CN112207497A CN 112207497 A CN112207497 A CN 112207497A CN 202011107835 A CN202011107835 A CN 202011107835A CN 112207497 A CN112207497 A CN 112207497A
- Authority
- CN
- China
- Prior art keywords
- welding
- weld
- base
- platform
- flat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
-
- 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
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/003—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to controlling of welding distortion
-
- 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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/047—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work moving work to adjust its position between soldering, welding or cutting steps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention belongs to the technical field of metal structure welding, and particularly relates to a device capable of converting fillet weld into flat weld and a welding deformation control method, wherein the device comprises a base, a turnover platform, a lifting rod, a synchronous motor, a reverse curved plate and a spiral pressure rod, wherein the turnover platform is arranged above the base, and the turnover platform is connected with the base through a support, a connecting plate, a pin shaft and an ear plate in sequence; the bases of the left lifting rod and the right lifting rod are connected with a sliding block, and the sliding block is arranged in a sliding groove of the base; the invention can rapidly switch between the fillet weld and the flat weld in the same operation process, thereby achieving the purposes of weld bead formation and welding quality control. Compared with the prior art, the invention has the advantages that: 1) the welding bead forming and welding quality control are facilitated, and the welding deformation is effectively removed through reversible deformation, so that the welding product can meet the requirement after being welded and formed at one time; 2) the working efficiency is improved; 3) has obvious effect on the batch production of products with the same specification.
Description
Technical Field
The invention belongs to the technical field of metal structure welding, and particularly relates to a device capable of converting a fillet weld into a flat weld and a welding deformation control method.
Background
When a U-shaped reinforcement welding position is welded on a large-scale bridge bottom plate, because fillet welds are inconvenient to weld and the welds are not formed well, the internal force of welding after welding forms bottom plate deformation in different degrees after welding; in addition, the operation is not easy, and the welding time is long, so the welding efficiency is low. This necessarily increases the time of the subsequent work, extending the duration of occupation of the whole production process.
The Chinese patent with the patent application number of 201020270400.1 discloses a large-scale power transformer oil tank welding turnover device, which comprises a corner bracket, a hinge shaft, an upper support shaft, a lower support shaft, a base, an adjusting shaft, an adjusting screw rod and a rotating support shaft, wherein a vertex angle of the corner bracket is movably connected with the base through the rotating support shaft, two sides of the corner bracket are respectively connected with the upper support shaft through the hinge shaft, the other end of the upper support shaft is movably connected with the lower support shaft, the other end of the lower support shaft is hinged with the base, two ends of the adjusting shaft are respectively hinged with one side of the corner bracket and the corresponding base through the hinge shaft, and the adjusting screw rod is arranged in the. When the angle adjusting device is used, the adjusting lead screw is rotated firstly, so that the length of the adjusting shaft is changed in a telescopic mode, and the adjusting shaft is converted into the angle change of the angle support. And then the oil tank is placed on the bracket, and corresponding horizontal welding seams of the oil tank are welded in sequence. The structure only helps to improve the quality of the welding seam, but cannot correct the welding deformation synchronously in the welding process.
The Chinese patent with the patent application number of 201810501067.1 discloses a method for controlling the welding deformation of a bearing plate of a large-size super-thick bridge steel tower, which comprises the following steps: (1) according to the principle that the length of a butt welding seam is shortest, 5 longitudinal welding seams and 1 transverse welding seam are adopted to divide the bearing plate into 12 splicing units; (2) the welding seam groove form is designed into a double-sided symmetrical U-shaped groove, so that the double-sided welding quantity is basically equal, and the trend that the welding deformation develops towards one side is reduced; (3) the assembly sequence is reasonably designed, and the gas shield welding bottoming and submerged arc automatic welding filling process is adopted for welding, so that the influence of welding on deformation is reduced; (4) before welding, reasonable welding pre-deformation amount is set by adopting pre-deformation, so that the influence of welding on deformation is reduced; (5) when the welding is turned over, the welding is turned over along the direction of the welding seam, so that the elastic-plastic deformation is prevented from occurring and the welding deformation is enlarged. The method is also not suitable for welding deformation control of the large bridge bottom plate on the occasion of welding the U-shaped reinforcement.
Disclosure of Invention
The invention aims to provide a device capable of converting a fillet weld into a flat weld and a welding deformation control method, which overcome the defects of the prior art, simultaneously solve the deformation problem of the weld and the welded weld in one operation process, can be repeatedly used for many times, can quickly switch between fillet welding and flat welding, is beneficial to the control of weld bead formation and welding quality, and effectively remove welding deformation through reverse deformation so that a welded product can meet the requirement after being welded and formed once.
In order to achieve the purpose, the invention is realized by the following technical scheme:
the technical scheme is as follows: a device capable of converting fillet welds into flat welds is characterized by comprising a base, a turnover platform, lifting rods, a synchronous motor, a reverse curved plate and a spiral pressure rod, wherein the turnover platform is arranged above the base; the overturning platform is connected with the base through the support, the connecting plate, the pin shaft and the lug plate in sequence; the bases of the left lifting rod and the right lifting rod are connected with a sliding block, and the sliding block is arranged in a sliding groove on the base; the sliding block is meshed with the screw rod, and one end of the screw rod is connected with the synchronous motor through a gear pair; the reverse bent plate is arranged on the surface of the turnover platform, and the turnover platform corresponding to the two ends of the reverse bent plate is provided with a spiral pressure rod.
The base is a frame structure consisting of a base main beam and a base secondary beam, and the base secondary beam is provided with a sliding groove.
The overturning platform is a frame structure consisting of a platform main beam and a platform secondary beam, the reverse bent plate is arranged on the upper surface of the platform secondary beam, and the spiral pressure rod is arranged on the platform main beam.
The bending direction of the reverse curved plate is perpendicular to the length direction of the bridge plate structural member.
The flexibility of the reverse curved plate is 3-5 mm/m.
The spiral pressure lever is a manual or pneumatic welding clamp or a hydraulic welding clamp.
The second technical proposal is that: a control method capable of converting fillet weld into flat weld welding deformation is characterized in that the deformation problem of the weld after forming and welding is solved in the same operation process, the fillet weld and the flat weld can be quickly switched, and the purposes of weld bead formation and welding quality control are achieved, and the control method comprises the following specific steps:
1) positioning the weldment, pre-calculating the deformation of the weldment according to the reverse direction of welding shrinkage, selecting a proper reverse bending plate, fixing the weldment on an overturning plane through a spiral pressure rod, and applying a reverse force on the weldment, so that the reverse force and the welding stress are mutually counteracted;
2) and (4) welding and forming, namely changing the fillet weld of the weldment on the overturning platform into a flat weld by overturning through adjusting the positions and the telescopic quantities of the left lifting rod and the right lifting rod, and welding according to a conventional process.
And after the step 2), carrying out vibration aging or heating on the welding part to release the stress at the welding seam.
Compared with the prior art, the invention has the beneficial effects that: 1) the deformation problem of a welding seam and after welding is solved simultaneously in the same operation process, the welding seam can be repeatedly used for many times, the fillet welding and the flat welding can be quickly switched, the welding seam forming and the welding quality control are facilitated, the welding deformation is effectively removed through reverse deformation, and the welding product can meet the requirement after being welded and formed once; 2) the structure is simple, the adjustment is convenient, the safety and the reliability are realized, the limitation of the working environment is avoided, and the working efficiency is greatly improved; 3) the method has obvious effect on the batch production of products with the same specification, and greatly reduces the working time of subsequent processes and the auxiliary operation time and processes. 4) The production slowness and deformation caused by the defects of personnel, equipment and the like are effectively reduced, and the manufacturing work can be operated and finished without excessive practical experience.
Drawings
FIG. 1 is a schematic structural view of an embodiment of the apparatus for converting a fillet weld into a flat weld according to the present invention, wherein a reverse-curved plate is used in a perspective view to show the structure of the lower edge of the reverse-curved plate.
Fig. 2 is a schematic diagram of a base structure in an embodiment of the invention.
Fig. 3 is a schematic structural diagram of an overturning platform in the embodiment of the present invention.
Fig. 4 is a sectional view taken along line a-a of fig. 2.
Fig. 5 is a sectional view taken along line B-B of fig. 2.
Fig. 6 is a sectional view taken along line C-C of fig. 3.
Fig. 7 is a view from direction M of fig. 2, showing a schematic view of the structure of the slider and the chute.
Fig. 8 is a view from the direction N of fig. 2, showing a schematic view of the gear pair.
In the figure: 1-base main beam, 2-base secondary beam, 3-lug plate, 4-chute, 5-slide block, 6-screw rod, 7-gear pair, 8-synchronous motor, 9-left lifting rod, 10-right lifting rod, 11-platform main beam, 12-platform secondary beam, 13-support, 14-connecting plate, 15-steel bridge bottom plate, 16-pin shaft, 17-screw pressure rod, 18-reverse bend plate, 19-turnover platform and 20-base.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The following embodiment is applied to the floor welding of the steel bridge of the expressway in some places.
Referring to fig. 1-8, which are schematic structural views of an embodiment of the device for converting fillet weld into flat weld according to the present invention, a turnover platform 19 is disposed above a base 20, the left side below the turnover platform is connected to the piston ends of two left lifting rods 9, and the right side below the turnover platform is connected to the piston ends of right lifting rods 10 corresponding to the number and positions of the left lifting rods 9; the overturning platform 19 is connected with the base 20 through the support 13, the connecting plate 14, the pin shaft 16, the ear plate 3 and the like in sequence; the bases 20 of the left lifting rod 9 and the right lifting rod 10 are connected with the sliding block 5, and the sliding block 5 is arranged in the sliding groove 4 on the base; the slide block 5 is engaged with a screw rod 6, and one end of the screw rod 6 is connected with a synchronous motor 8 through a gear pair 7; the reverse bending plate 18 is arranged on the surface of the overturning platform 19, and the overturning platform 19 corresponding to the two ends of the reverse bending plate 18 is provided with the spiral pressure rod 17. The spiral pressure lever 17 is a manual, pneumatic welding jig or a hydraulic welding jig.
The base 20 is a frame structure composed of a base main beam 1 and a base secondary beam 2, and the base secondary beam 2 is provided with a sliding groove 4.
The overturning platform 19 is a frame structure formed by a platform main beam 11 and a platform secondary beam 12, the reverse bending plate 18 is arranged on the upper surface of the platform secondary beam 12, and the spiral pressure rod 17 is arranged on the platform main beam 11. The direction of deflection of the reverse bend plate 18 is perpendicular to the length direction of the bridge plate structure 15. The flexibility of the reverse bending plate 18 is 3-5 mm/m.
The invention relates to a control method of welding deformation capable of converting a fillet weld into a flat weld, which can rapidly switch between the fillet weld and the flat weld by simultaneously solving the problems of weld forming and deformation after welding in the same operation process so as to achieve the purposes of weld bead formation and welding quality control, and comprises the following specific steps:
1) positioning a weldment, pre-calculating the deformation of the weldment according to the reverse direction of welding shrinkage, selecting a proper reverse bending plate 18, fixing the weldment of the steel bridge bottom plate 15 on an overturning plane through a spiral pressure rod 17, and applying a reverse force on the weldment, so that the reverse force and the welding stress are mutually offset; and placing the operating platform in place, measuring the angle between the U-shaped rib and the steel bridge bottom plate 15 by using a protractor, and calculating the rotation angle of the flat welding seam converted by the angle in the mould. The assembled steel bridge bottom plate 15 is placed on the overturning platform, the two sides of the steel bridge bottom plate 15 are fixed through the spiral compression rods, and the steel bridge bottom plate 15 is compacted downwards through the spiral compression rods.
2) Welding and forming, then rising simultaneously through the left lifter side of adjustment, the right lifter side descends simultaneously, makes the platform rotatory to the right side, and when reacing the lifter limit, operation synchronous machine passes through the hob and drives the slider motion, makes the right lifter move to the right side, and left lifter synchronous operation simultaneously, one receipts one like this, upset platform inclination can be adjusted at bigger within range. Thereby causing the fillet weld on the steel bridge floor 15 to become a flat weld. Secondly, a reverse force is applied to the whole assembled steel bridge bottom plate 15 in the reverse direction of welding shrinkage through a reverse bent plate 18, and therefore the reverse force and the welding stress are mutually offset. The fillet weld of the weldment on the overturning platform is changed into a flat weld through overturning by adjusting the positions and the telescopic amount of the left lifting rod 9 and the right lifting rod 10, and the welding is carried out according to the conventional process.
And 2) after the step 2) is finished, opening the spiral pressure lever to remove the external force after welding, wherein the shrinkage of a welding bead is consistent with the reverse bending amount of the reverse bending plate in the welding process and can be counteracted with each other, the transverse shrinkage of the steel bridge bottom plate 15 part is mainly counteracted, the longitudinal welding seam of the welding bead is vibrated by the vibration of the longitudinal air shovel, the directions are consistent, and the internal force of each welding seam on the upper platform is eliminated from left to right, so that the deformation of the welding bottom plate is effectively controlled. In this way, the welded and formed steel bridge bottom plate 15 component has the same shape as the steel bridge bottom plate 15 assembled before welding. And the welded part can be subjected to vibratory aging or heating according to requirements, so that the stress at the welded joint is released.
The above embodiments are merely specific examples selected for illustrating the objects, technical solutions and advantages of the present invention in detail, and should not be construed as limiting the scope of the present invention, and various modifications, equivalent substitutions and improvements can be made without departing from the spirit and principle of the present invention.
Claims (8)
1. A device capable of converting fillet welds into flat welds is characterized by comprising a base, a turnover platform, lifting rods, a synchronous motor, a reverse curved plate and a spiral pressure rod, wherein the turnover platform is arranged above the base; the overturning platform is connected with the base through the support, the connecting plate, the pin shaft and the lug plate in sequence; the bases of the left lifting rod and the right lifting rod are connected with a sliding block, and the sliding block is arranged in a sliding groove on the base; the sliding block is meshed with the screw rod, and one end of the screw rod is connected with the synchronous motor through a gear pair; the reverse bent plate is arranged on the surface of the turnover platform, and the turnover platform corresponding to the two ends of the reverse bent plate is provided with a spiral pressure rod.
2. The apparatus of claim 1, wherein the fillet weld is a flat weld, and the apparatus further comprises: the base is a frame structure consisting of a base main beam and a base secondary beam, and the base secondary beam is provided with a sliding groove.
3. The apparatus of claim 1, wherein the fillet weld is a flat weld, and the apparatus further comprises: the overturning platform is a frame structure consisting of a platform main beam and a platform secondary beam, the reverse bent plate is arranged on the upper surface of the platform secondary beam, and the spiral pressure rod is arranged on the platform main beam.
4. The apparatus of claim 1, wherein the fillet weld is a flat weld, and the apparatus further comprises: the bending direction of the reverse curved plate is perpendicular to the length direction of the bridge plate structural member.
5. The apparatus of claim 4, wherein the fillet weld is a flat weld, and the apparatus further comprises: the flexibility of the reverse curved plate is 3-5 mm/m.
6. The apparatus of claim 1, wherein the fillet weld is a flat weld, and the apparatus further comprises: the spiral pressure lever is a manual or pneumatic welding clamp or a hydraulic welding clamp.
7. A control method capable of converting fillet weld into flat weld welding deformation is characterized in that the deformation problem of the weld after forming and welding is solved in the same operation process, the fillet weld and the flat weld can be quickly switched, and the purposes of weld bead formation and welding quality control are achieved, and the control method comprises the following specific steps:
1) positioning the weldment, pre-calculating the deformation of the weldment according to the reverse direction of welding shrinkage, selecting a proper reverse bending plate, fixing the weldment on an overturning plane through a spiral pressure rod, and applying a reverse force on the weldment, so that the reverse force and the welding stress are mutually counteracted;
2) and (4) welding and forming, namely changing the fillet weld of the weldment on the overturning platform into a flat weld by overturning through adjusting the positions and the telescopic quantities of the left lifting rod and the right lifting rod, and welding according to a conventional process.
8. The apparatus of claim 7, wherein the fillet weld is a flat weld: and after the step 2), carrying out vibration aging or heating on the welding part to release the stress at the welding seam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011107835.9A CN112207497A (en) | 2020-10-16 | 2020-10-16 | Device capable of converting fillet weld into flat weld and welding deformation control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011107835.9A CN112207497A (en) | 2020-10-16 | 2020-10-16 | Device capable of converting fillet weld into flat weld and welding deformation control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112207497A true CN112207497A (en) | 2021-01-12 |
Family
ID=74055440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011107835.9A Pending CN112207497A (en) | 2020-10-16 | 2020-10-16 | Device capable of converting fillet weld into flat weld and welding deformation control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112207497A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113210993A (en) * | 2021-06-11 | 2021-08-06 | 湖北天高桥梁工程有限公司 | Plate unit longitudinal seam ship position welding system and application and welding method thereof |
| CN113210994A (en) * | 2021-06-11 | 2021-08-06 | 湖北天高桥梁工程有限公司 | Internal welding system and internal welding method for welding longitudinal seam ship position of plate unit |
| CN113441878A (en) * | 2021-06-04 | 2021-09-28 | 西安航天动力测控技术研究所 | Electric connector welding auxiliary device and using method |
| CN116038228A (en) * | 2023-03-29 | 2023-05-02 | 河南大方重型装备有限公司 | Jig frame for assembling and welding steel box beam plates |
-
2020
- 2020-10-16 CN CN202011107835.9A patent/CN112207497A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113441878A (en) * | 2021-06-04 | 2021-09-28 | 西安航天动力测控技术研究所 | Electric connector welding auxiliary device and using method |
| CN113210993A (en) * | 2021-06-11 | 2021-08-06 | 湖北天高桥梁工程有限公司 | Plate unit longitudinal seam ship position welding system and application and welding method thereof |
| CN113210994A (en) * | 2021-06-11 | 2021-08-06 | 湖北天高桥梁工程有限公司 | Internal welding system and internal welding method for welding longitudinal seam ship position of plate unit |
| CN116038228A (en) * | 2023-03-29 | 2023-05-02 | 河南大方重型装备有限公司 | Jig frame for assembling and welding steel box beam plates |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112207497A (en) | Device capable of converting fillet weld into flat weld and welding deformation control method | |
| CN104259674B (en) | Anti-deformation device and method before the weldering of reduction T connector Welding Angular Deformation | |
| CN101791762A (en) | Truss forming and welding integrated mechanism | |
| CN202667904U (en) | Point welding machine for triangular truss | |
| CN107570860A (en) | One kind is used for the vertical assembling docking longitudinal seam welder of arc wallboard | |
| CN111618591B (en) | Box equipment | |
| CN205057510U (en) | It connects frock to be used for melon lamella part longitudinal joint to mill friction stir welding | |
| CN106270996A (en) | A kind of horizontal spot welding device for the welding of Frame lamp end | |
| CN207127415U (en) | A kind of welding tooling platform with centering body | |
| CN210413192U (en) | Special machine for automatically welding truss | |
| CN209811537U (en) | Plate welding structure | |
| CN213857795U (en) | Device capable of converting fillet weld into flat weld | |
| CN115635239B (en) | Assembling and auxiliary welding device and assembling and welding method for beam-shaped steel pipe special-shaped column | |
| CN113996982B (en) | Walking type tracking welding device for steel die | |
| CN115283799A (en) | Novel automatic submerged arc welding fixture for corrugated steel web curve | |
| CN111843486B (en) | Preparation process of bending-resistant triangular steel | |
| CN220971195U (en) | Steel bar welding framework mould | |
| CN216990554U (en) | Inlay layering welding process helping hand arm | |
| CN221516697U (en) | Web is pieced together welding position frock in advance | |
| CN219746771U (en) | Right-angle double-sided steel plate welding device | |
| CN212145139U (en) | Rotatory frock of side top camber beam assembly welding shaping | |
| CN221870854U (en) | High-precision welding tool for steel template machining | |
| CN211052926U (en) | Automatic turnover welding device for aluminum alloy template | |
| CN116213898B (en) | Welding fixture device for gas-insulated cabinet body and application method of welding fixture device | |
| CN221210237U (en) | Mechanical automatic welding device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |