CN114799589B - Plate welding anti-deformation device and plate welding anti-deformation method - Google Patents
Plate welding anti-deformation device and plate welding anti-deformation method Download PDFInfo
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- CN114799589B CN114799589B CN202210504178.4A CN202210504178A CN114799589B CN 114799589 B CN114799589 B CN 114799589B CN 202210504178 A CN202210504178 A CN 202210504178A CN 114799589 B CN114799589 B CN 114799589B
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- 238000003466 welding Methods 0.000 title claims abstract description 133
- 238000000034 method Methods 0.000 title claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 113
- 230000001681 protective effect Effects 0.000 claims abstract description 40
- 238000007789 sealing Methods 0.000 claims abstract description 16
- 230000001360 synchronised effect Effects 0.000 claims abstract description 12
- 230000007246 mechanism Effects 0.000 claims abstract description 10
- 238000005192 partition Methods 0.000 claims description 12
- 230000008569 process Effects 0.000 claims description 12
- 230000000149 penetrating effect Effects 0.000 claims description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 8
- 239000000919 ceramic Substances 0.000 claims description 8
- 229910052802 copper Inorganic materials 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 8
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 230000001502 supplementing effect Effects 0.000 claims description 2
- 230000002265 prevention Effects 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 3
- 230000001276 controlling effect Effects 0.000 description 8
- 238000001816 cooling Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 230000008439 repair process Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 230000003064 anti-oxidating effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The application provides a plate welding anti-deformation device and a plate welding anti-deformation method, wherein a plurality of synchronous automatic lifting mechanisms are arranged below a rectangular supporting plate; the upper surface of the rectangular supporting plate is provided with a U-shaped water circulation supporting groove extending along the length direction, and a protective gas filling pipe extending along the length direction is arranged in the inner cavity of the middle part of the U-shaped water circulation supporting groove; a first protective gas sealing gasket, a liner and a second protective gas sealing gasket are sequentially arranged above the filter screen along the length direction; two rows of pressure sensors are arranged on the rectangular supporting plate at intervals and respectively abutted to the two opposite outer side walls of the U-shaped water circulation bracket; two rows of spring clamps capable of moving in the width direction are arranged on the U-shaped water circulation bracket at intervals along the width direction, and the two rows of spring clamps are respectively abutted against two opposite outer side walls of the gasket. The device can improve the protection effect of the plate to be processed, and can ensure the welding quality of the welding line.
Description
Technical Field
The application relates to the field of constructional engineering, in particular to a plate welding deformation preventing device and a plate welding deformation preventing method.
Background
A large number of plates with different thicknesses and different materials are often welded in engineering construction sites or steel product processing workshops, a large number of single-sided welding and double-sided forming welding processes are used for saving the working time and the turnover time of a crane and improving the production efficiency, and meanwhile, the welding defects of high-temperature deformation of a clamping device, large reserved clearance or infirm welding leakage of gasket bonding, overhigh back welding seam forming, slag inclusion air holes and the like occur, and meanwhile, the welding quality cannot be guaranteed due to welding magnetic bias blowing when the welding flux is clamped by a flux guide clamp; in addition, because the restriction of the field and the lifting appliance can not meet the accurate angle of the plate pre-deformation to be processed, the welding deformation is caused, a plurality of complicated procedures can be brought to the subsequent work, and the whole working efficiency can not be improved.
Disclosure of Invention
The application aims to provide a plate welding deformation preventing device and a plate welding deformation preventing method, which are used for solving the problem that the welding quality is low due to deformation in the existing plate welding.
The technical scheme of the application is as follows:
the plate welding deformation preventing device comprises a positioning platform, wherein a rectangular through hole penetrating through the top and the bottom is formed in the positioning platform, and a liftable rectangular supporting plate is arranged in the rectangular through hole; a plurality of synchronous automatic lifting mechanisms are arranged below the rectangular supporting plate and used for driving the rectangular supporting plate to lift in the rectangular through hole; the upper surface of the rectangular supporting plate is provided with a U-shaped water circulation bracket extending along the length direction, a protective gas filling pipe extending along the length direction is arranged in a sealed inner cavity in the middle of the U-shaped water circulation bracket, a plurality of flow dividing small holes are uniformly distributed on two side walls of the protective gas filling pipe at intervals, and a filter screen is paved above the protective gas filling pipe; the filter screen is positioned in the arc-shaped opening of the U-shaped water circulation bracket and is arranged along the length direction of the U-shaped water circulation bracket; a first protective gas sealing gasket, a liner and a second protective gas sealing gasket are sequentially arranged above the filter screen along the length direction; two rows of pressure sensors are arranged on the rectangular supporting plate at intervals, and the two rows of pressure sensors are respectively abutted against the two opposite outer side walls of the U-shaped water circulation bracket and used for detecting the attaching force of the gasket; the U-shaped water circulation bracket is provided with two rows of spring clamps capable of moving along the width direction at intervals along the width direction, and the two rows of spring clamps are respectively abutted to two opposite outer side walls of the gasket and used for limiting the gasket.
As a technical scheme of the application, the U-shaped water circulation bracket comprises a first side end cover plate, a U-shaped groove, a partition plate, a top supporting plate and a second side end cover plate; the U-shaped groove is arranged on the upper surface of the rectangular supporting plate along the length direction of the rectangular supporting plate, and the opening of the U-shaped groove is upward; the partition plate is integrally formed in the middle of the bottom plate of the U-shaped groove along the length direction of the U-shaped groove, and divides the U-shaped groove into two sealed cavities; the first side end cover plate and the second side end cover plate are respectively sealed and cover-mounted at two opposite side ends of the U-shaped groove; the top supporting plate sealing cover is arranged on the upper surface of the U-shaped groove, and an arc-shaped supporting groove penetrating through the bottom is formed in the middle of the top supporting plate along the length direction; the protective gas filling pipe is arranged in a gap between the arc-shaped bracket and the partition plate, and one end of the protective gas filling pipe penetrates out of the first side end cover plate.
As a technical scheme of the application, the top supporting plate is provided with two rows of first T-shaped grooves with inverted T-shaped cross sections at intervals along the width direction, and each row of first T-shaped grooves extends from the middle part of the top supporting plate to the outside of the side wall; the spring clamp capable of moving along the width direction of the top supporting plate is arranged in the first T-shaped groove, and a scale mark is arranged on one edge of the top surface of the first T-shaped groove and used for positioning the sliding position of the spring clamp.
As an aspect of the present application, the pad includes a copper pad, a steel pad, or a ceramic pad.
As a technical scheme of the application, the sealed inner cavity of the U-shaped water circulation bracket is respectively connected with one end of a water inlet hose and one end of a water outlet hose, the other end of the water inlet hose is connected to a circulation water tank through a first electronic valve, and the other end of the water outlet hose is connected to the circulation water tank through a second electronic valve; and the circulating water tank is also connected with a supplementing water pipe.
As a technical scheme of the application, the synchronous automatic lifting mechanism comprises a first lifting hydraulic cylinder which is used for adjusting the height of the U-shaped water circulation bracket.
As a technical scheme of the application, a plurality of second T-shaped grooves with inverted T-shaped cross sections are arranged on the positioning platform at intervals in parallel, the second T-shaped grooves are respectively arranged outside two opposite sides of the rectangular supporting plate at intervals, and each second T-shaped groove is internally provided with a clamping structure capable of sliding along the direction parallel to the length direction of the rectangular supporting plate and used for clamping plates with different sizes and thicknesses; the clamping structures are arranged in two rows, and each row of clamping structures are arranged at intervals along the length direction of the positioning platform.
As a technical scheme of the application, the clamping structure comprises a T-shaped sliding block, a first screw, a second screw, a nut and a clamping block, wherein the cross section of the T-shaped sliding block is in an inverted T shape; a scale mark is arranged on the top surface of the second T-shaped groove along the length direction of one edge and is used for positioning the sliding position of the T-shaped sliding block; the T-shaped sliding block is slidably arranged in the second T-shaped groove, and the top surface of the T-shaped sliding block is flush with the top surface of the second T-shaped groove; the first screw and the second screw are fixedly arranged on the top of the T-shaped sliding block at intervals; the clamping blocks are in threaded connection with the first screw and the second screw through the nuts in a height-adjustable mode and are used for clamping different plates.
As a technical scheme of the application, two rows of mounting grooves penetrating through the top surface are uniformly formed in the positioning platform at intervals, the two rows of mounting grooves are respectively positioned outside two opposite sides of the rectangular through hole at intervals, and the bottom of each mounting groove is provided with a circular connecting hole penetrating through the top bottom; every the below of circular connecting hole all is provided with the second lift pneumatic cylinder, the drive end of second lift pneumatic cylinder pass circular connecting hole and extend in the mounting groove, and the transmission connect in regulating block in the mounting groove is used for adjusting the height of regulating block.
The plate welding deformation preventing method adopts the plate welding deformation preventing device to weld, and comprises the following steps:
step one, adjusting the top surfaces of two rows of adjusting blocks outside two opposite sides of the rectangular through hole on the positioning platform to be at the same plane height with the positioning platform, and adjusting the U-shaped water circulation bracket to be at the height 200mm lower than the rectangular through hole of the positioning platform;
selecting single-sided welding and double-sided forming welding according to the process requirements;
step three, respectively paving two plates with processed single-sided grooves outside two sides of the rectangular through hole of the positioning platform, and cleaning the grooves of the plates and the range of 20mm away from the grooves on the plates;
fourthly, adjusting the straightness, the gap and the center position of the groove of the two plates;
fifthly, adjusting the reserved deformation of the plate by adjusting the heights of the two rows of adjusting blocks;
step six, adjusting the two plates so that the grooves of the two plates are adjacent to each other and the contact center line of the two grooves is positioned at the position right in the middle of the rectangular through hole, and locking the two plates by sliding the T-shaped sliding block;
step seven, the height of the U-shaped water circulation bracket is adjusted through the pressure sensor, so that an arc-shaped opening on the upper surface of the U-shaped water circulation bracket is tightly attached to the grooves of the two plates;
step eight, starting a circulating water tank, a first electronic valve and a second electronic valve to cool and protect a sealed inner cavity of the U-shaped water circulation bracket;
step nine, starting the protective gas filling pipe to uniformly feed gas to protect the sealed inner cavity of the U-shaped water circulation bracket;
step ten, performing backing layer welding and filling layer welding on the grooves of the two plates, and adjusting welding deformation allowance of the two plates in real time by adjusting the heights of the two rows of adjusting blocks and the height of the synchronous automatic lifting mechanism in the filling layer welding process;
and step eleven, after the two plates are welded, closing the protective gas filling pipe, loosening the clamping structure, adjusting the adjusting block and the U-shaped water circulation bracket to the same height position of the positioning platform, and moving out the two plates.
The application has the beneficial effects that:
the application provides the clamping device which is simple to operate, reduces labor intensity, improves welding efficiency and is automatically operated, the clamping device is safe and efficient, labor intensity can be reduced, welding quality of a welding line can be improved, the problems of high-temperature deformation of a bracket, oxidization-resistant protection of the back surface and different forming widths of the back surface of the welding line are effectively solved, the problem of plate surface deformation at the welded welding line is solved, the problem of automatic adjustment and pre-deformation is solved, and the intensity of repeated repair of a field tearing liner and welding defect and repeated turning-over labor of a crane is reduced. The U-shaped hydrologic cycle bracket of the device has solved welding platform and panel high temperature deformation problem, has increased high temperature resistant first protective gas seal and second protective gas seal, has improved its protection effect to can ensure welding seam welding quality. Meanwhile, through the design of the first T-shaped groove, the spring clamp, the scale marks and the pressure sensors, accurate positioning and close fitting of the gasket can be completed through synchronous matching. In addition, the device integrates multiple purposes of single-sided welding and double-sided molding circulating water cooling and gas protection U-shaped bracket of the adjustable welding gaskets, copper gaskets or steel gaskets or ceramic gaskets can be flexibly changed according to site requirements, and welding quality is automatically adjusted and guaranteed through the pressure sensor. Meanwhile, the device achieves the purpose of controlling welding deformation at any time by designing the clamping structure to adjust the position of the plate, and further improves welding quality.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present application and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a plate welding deformation preventing device and a plate installation according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a plate welding anti-deformation device according to an embodiment of the present application;
FIG. 3 is a schematic view of a first angle structure of a plate welding deformation preventing device according to an embodiment of the present application;
fig. 4 is a schematic view of a second angle structure of the plate welding deformation preventing device according to the embodiment of the present application;
FIG. 5 is a schematic view of a U-shaped water circulation bracket structure provided by an embodiment of the application;
FIG. 6 is a schematic view of a first angle structure of a U-shaped water circulation bracket according to an embodiment of the present application;
FIG. 7 is a schematic diagram of a second angle structure of a U-shaped water circulation bracket according to an embodiment of the present application;
FIG. 8 is a schematic view of a third angle structure of a U-shaped water circulation bracket according to an embodiment of the present application;
FIG. 9 is a schematic diagram of a connection between a U-shaped water circulation bracket and a circulation water tank according to an embodiment of the present application;
fig. 10 is a schematic diagram of a clamping structure according to an embodiment of the present application.
Icon: 1-positioning a platform; 2-plate material; 3-a rectangular supporting plate; 4-a first lifting hydraulic cylinder; 5-U-shaped water circulation brackets; 6-a shielding gas filling tube; 7-a filter screen; 8-a first protective gas gasket; 9-a gasket; 10-a second protective gas gasket; 11-a pressure sensor; 12-spring clip; 13-a first side end cover plate; 14-U-shaped grooves; 15-dividing plates; 16-top pallet; 17-a second side end cover plate; 18-a first T-slot; 19-a water inlet hose; 20-a water outlet hose; 21-a circulation tank; 22-a second T-slot; 23-a clamping structure; 24-T-shaped sliding blocks; 25-nut; 26-clamping blocks; 27-a second lifting hydraulic cylinder; 28-an adjusting block; 29-integrated controller.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. The components of the embodiments of the present application generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the application, as presented in the figures, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present application, it should be noted that, the azimuth or positional relationship indicated by the terms "upper", "lower", etc. are based on the azimuth or positional relationship shown in the drawings, or the azimuth or positional relationship in which the inventive product is conventionally put in use, are merely for convenience of describing the present application and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and therefore, should not be construed as limiting the present application.
Furthermore, in the present application, unless expressly stated or limited otherwise, a first feature may include first and second features being in direct contact, either above or below a second feature, or through additional feature contacts therebetween, rather than being in direct contact. Moreover, the first feature being above, over, and on the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being below, beneath, and beneath the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is less level than the second feature.
Furthermore, the terms "horizontal," "vertical," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present application, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.
Examples:
referring to fig. 1, with reference to fig. 2 to 10, the present application provides a plate welding deformation preventing device, which is mainly applied to single-sided welding and double-sided forming welding of different materials with different thicknesses and preventing welding deformation in a field working environment, and is used for solving the problem of high temperature deformation of a welding platform and a plate, improving welding quality of a welding seam, and by integrating multiple purposes of adjusting various welding gaskets 9, single-sided welding double-sided forming circulating water cooling and gas protection arc bracket, the copper gaskets 9 or the steel gaskets 9 or the ceramic gaskets 9 can be flexibly changed according to field requirements, and the welding quality can be automatically adjusted and ensured by a pressure sensor 11, and meanwhile, the purpose of controlling the welding deformation at any time is achieved by designing an adjusting block 28 and a second T-shaped groove 22.
The device mainly comprises a positioning platform 1, wherein the positioning platform 1 is of a cuboid structure, a rectangular through hole penetrating through the top and the bottom is formed in the middle of the positioning platform 1, and the rectangular through hole is rectangular and is used for automatically lifting a U-shaped water circulation bracket 5 to pass through and paving a welded plate 2; meanwhile, a liftable rectangular supporting plate 3 is arranged in the rectangular through hole, and the rectangular supporting plate 3 is rectangular and is used for lifting a U-shaped water circulation bracket 5; a plurality of synchronous automatic lifting mechanisms are arranged below the rectangular supporting plate 3, specifically, the synchronous automatic lifting mechanisms can adopt a first lifting hydraulic cylinder 4 in the prior art, the number of the first lifting hydraulic cylinders 4 can be one, two, three and the like, the first lifting hydraulic cylinders 4 are vertically arranged, the driving ends of the first lifting hydraulic cylinders are fixedly connected to the bottom of the rectangular supporting plate 3, and the driving ends of the first lifting hydraulic cylinders are used for lifting and descending to adjust the U-shaped water circulation supporting grooves 5 or various gaskets 9 to be tightly attached to the weld joint plate surface. The first lifting hydraulic cylinder 4 is started, so that the rectangular supporting plate 3 can be driven to lift in the rectangular through hole, and the height of the rectangular supporting plate 3 is adjusted. The rectangular pallet 3 extends in the width direction of the positioning table 1.
The upper surface of the rectangular supporting plate 3 is provided with a U-shaped water circulation bracket 5 extending along the length direction of the rectangular supporting plate 3, and the U-shaped water circulation bracket is used for cooling and controlling deformation of welding seams and two side plate surfaces. The U-shaped water circulation bracket 5 comprises a first side end cover plate 13, a U-shaped groove 14, a partition plate 15, a top supporting plate 16 and a second side end cover plate 17, wherein the U-shaped groove 14 is fixedly arranged on the upper surface of the rectangular supporting plate 3 along the length direction of the rectangular supporting plate 3, and the opening of the U-shaped groove 14 is upward; the partition plate 15 is integrally and fixedly arranged at the middle part on the bottom plate of the U-shaped groove 14 along the length direction of the U-shaped groove 14, and divides the sealed inner cavity of the U-shaped groove 14 into two sealed cavities; the first side end cover plate 13 and the second side end cover plate 17 are respectively and hermetically arranged at two opposite side ends of the U-shaped groove 14; meanwhile, the top supporting plate 16 is arranged on the upper surface of the U-shaped groove 14 in a sealing manner, an arc-shaped supporting groove penetrating through the bottom is formed in the middle of the top supporting plate 16 along the position of the length direction, namely, the arc-shaped supporting groove is positioned right above the partition plate 15, the arc-shaped supporting groove is provided with an arc-shaped opening with an upward opening and an arc-shaped inner surface, the arc-shaped opening penetrates through the top bottom of the arc-shaped supporting groove, the arc-shaped supporting groove is communicated with the partition plate 15 through the arc-shaped opening, a certain installation gap is formed between the arc-shaped opening and the arc-shaped supporting groove, the arc-shaped supporting groove can be just used for installing the protective gas filling pipe 6, the protective gas filling pipe 6 can just be placed on the top surface of the partition plate 15 and is clamped in the installation gap formed by the arc-shaped supporting groove and the partition plate 15 in a surrounding manner, and two contact surfaces on the arc-shaped supporting groove, which are contacted with two opposite side surfaces of the protective gas filling pipe 6, are both corresponding to and are matched with each other; meanwhile, the length of the protective gas filling pipe 6 is similar to that of the partition plate 15, and one end of the protective gas filling pipe 6 penetrates out of the first side end cover plate 13 and is used for being communicated with the inflator; and, the protective gas filling pipe 6 extends along the length direction of the U-shaped water circulation bracket 5, and a plurality of small flow dividing holes are uniformly distributed on the two opposite side walls at intervals and used for performing anti-oxidation protection on the gaps of the welding seams and the gaskets 9. A filter screen 7 is paved right above the shielding gas filling pipe 6 and is used for filtering welding slag and air flow coming out of the uniform flow dividing small holes.
The filter screen 7 is positioned in the arc-shaped opening of the U-shaped water circulation bracket 5 and is arranged along the length direction of the U-shaped water circulation bracket 5; a first protective gas sealing gasket 8, a gasket 9 and a second protective gas sealing gasket 10 are sequentially arranged above the filter screen 7 in a sealing manner along the length direction; the gasket 9 can adopt a copper gasket 9, a steel gasket 9 or a ceramic gasket 9 and the like in the prior art for single-sided welding of various gaps and welding seams with various thicknesses; the first protective gas gasket 8 and the second protective gas gasket 10 are used for sealing the U-shaped groove 14 air chamber.
Meanwhile, two rows of pressure sensors 11 are arranged on the rectangular supporting plate 3 at intervals, the two rows of pressure sensors 11 are respectively abutted to the opposite outer side walls of the U-shaped groove 14 of the U-shaped water circulation bracket 5, the two rows of pressure sensors 11 are uniformly and correspondingly arranged, the intervals between the pressure sensors 11 in the same row can be equal, and the pressure sensors 11 can be used for detecting and automatically controlling the attaching force of the gasket 9.
In addition, the top supporting plate 16 is provided with two rows of first T-shaped slots 18 with inverted T-shaped cross sections at intervals along the width direction, the two rows of first T-shaped slots 18 are arranged at intervals and respectively located outside two opposite sides of the arc-shaped opening of the top supporting plate 16 at intervals, each row of first T-shaped slots 18 extends from the outer side wall of the arc-shaped opening to the outer side wall of the top supporting plate 16, each row of first T-shaped slots 18 extends along the length direction of the top supporting plate 16, the two rows of first T-shaped slots 18 are uniformly and correspondingly distributed, and the intervals between the first T-shaped slots 18 in the same row are identical. A scale mark is provided on one side of the upper surface of each first T-shaped groove 18, the scale mark extending in the length direction of the first T-shaped groove 18 for measuring the moving position of the spring card 12; meanwhile, spring cards 12 which can move along the width direction of the top supporting plate 16 are arranged in each first T-shaped groove 18, two rows of spring cards 12 are distributed on two opposite outer sides of the arc-shaped opening at intervals, the two rows of spring cards 12 correspond to each other one by one, and the intervals between the spring cards 12 in the same row are the same. At the same time, the two rows of spring cards 12 respectively abut against the opposite outer side walls of the gasket 9 for positioning and fixing the gasket 9 in various forms and sizes.
Further, a water inlet and a water outlet are respectively arranged on the sealed cavity of the U-shaped groove 14; one end of the water inlet hose 19 is connected to the circulating water tank 21 through a first electronic valve, and the other end is connected to the water inlet; one end of the water outlet hose 20 is connected to the circulating water tank 21 through a second electronic valve, and the other end is connected to the water outlet. The water inlet hose 19 and the water outlet hose 20 are flexibly connected when being used for moving up and down; the water in the circulating water tank 21 enters the sealed cavity through the water inlet hose 19 to cool the U-shaped water circulating bracket 5, and then returns to the circulating water tank 21 through the water outlet hose 20; the first electronic valve and the second electronic valve control the inlet and outlet of circulating water. In addition, a water replenishing pipe and a controller are also connected to the circulating water tank 21, and the controller is respectively and electrically connected with the first electronic valve and the second electronic valve and is used for controlling the circulating water quantity and the water pressure; and, the controller adopts a conventional structure in the prior art.
The device is safe and efficient, can lighten the labor intensity, improves the welding quality of the welding line, effectively solves the problems of high-temperature deformation of the bracket, oxidation resistance protection of the back surface and non-uniform forming width of the back surface of the welding line, solves the problem of plate surface deformation of the welded welding line, solves the problem of automatic adjustment and pre-deformation, and lightens the labor intensity of on-site pasting, tearing of the liner 9, repeated repair of welding defects and repeated turning of a crane.
Further, a plurality of second T-shaped grooves 22 with inverted T-shaped cross sections are arranged on the positioning platform 1 at intervals in parallel, the second T-shaped grooves 22 extend along the width direction of the positioning platform 1 and penetrate through two opposite outer side walls of the positioning platform 1, meanwhile, the plurality of second T-shaped grooves 22 are respectively arranged outside two opposite sides of the rectangular supporting plate 3 at intervals, and a clamping structure 23 capable of sliding along the direction parallel to the length direction of the rectangular supporting plate 3 is arranged in each second T-shaped groove 22 and used for clamping plates 2 with different sizes and different thicknesses; the clamping structures 23 are arranged in two rows, and each row of clamping structures 23 is arranged at intervals along the length direction of the positioning platform 1.
Specifically, the clamping structure 23 includes a T-shaped slider 24 having an inverted T-shaped cross section, a first screw, a second screw, a nut 25, and a clamping block 26; wherein, a scale mark is arranged on the top surface of the second T-shaped groove 22 along the length direction of one edge and is used for positioning the sliding position of the T-shaped sliding block 24; meanwhile, the T-shaped slider 24 is slidably mounted in the second T-shaped slot 22 with the top surface flush with the top surface of the second T-shaped slot 22; further, the first screw, the second screw are fixedly mounted on top of the T-shaped slider 24 at intervals; the clamping blocks 26 are adjustably screwed to the first and second screws by adjusting the height of the nuts 25, so as to be used for clamping plates 2 of different sizes and different thicknesses.
Simultaneously, two rows of mounting grooves penetrating through the top surface are uniformly formed in the positioning platform 1 at intervals, the two rows of mounting grooves are respectively located outside two opposite sides of the rectangular through hole at intervals and between the two rows of second T-shaped grooves 22, and the two rows of mounting grooves extend along the width direction of the positioning platform 1. And, the bottom of every mounting groove has all been seted up and has been run through the circular connecting hole at the top and bottom, all is provided with second lift pneumatic cylinder 27 in the below of every circular connecting hole, and the drive end of second lift pneumatic cylinder 27 passes circular connecting hole and extends in the mounting groove, and the transmission is connected in the regulating block 28 in the mounting groove for adjust the height of regulating block 28, the regulating block 28 is used for prefabricating the deformation setting before the welding and welding seam deformation adjustment in the welding process.
In addition, a comprehensive controller 29 and a control panel are arranged on one side of the rectangular hole platform and used for comprehensive automatic regulation and control of the welding process. The integrated controller 29 and the control panel are all conventional structures in the prior art, and the specific structure and working principle thereof are not described herein.
The integrated controller 29 is electrically connected to the first lifting hydraulic cylinder 4, the second lifting hydraulic cylinder 27, the motorized roller installed inside the positioning platform 1, the pressure sensor 11, the circulation water tank 21, the first electronic valve, the second electronic valve, the electronic valve on the shielding gas filling pipe 6, and the like through control panels, respectively. It is mainly used for controlling the operation of the following structure: (1) The first lifting hydraulic cylinder 4 below the rectangular supporting plate 3 is controlled to be opened or closed, so that any height required by the U-shaped water circulation bracket 5 before, during and after welding is adjusted. (2) The heights of the plurality of adjusting blocks 28 on both sides of the rectangular through hole at the middle position of the positioning platform 1 are controlled to achieve any height required for adjusting the pre-deformation before welding, during the welding process and after the welding of the welding plate 2. (3) The motorized roller embedded in the positioning platform 1 is controlled to move the plate 2 back and forth or left and right. (4) receiving the data measured by the pressure sensor 11. (5) The water flow in the circulation tank 21 is controlled to cool the U-shaped water circulation bracket 5. (6) And controlling an electronic valve on the protective gas filling pipe 6 to uniformly feed gas to the sealed inner cavity of the U-shaped water circulation bracket 5 for protection and the like.
Further, in this embodiment, there is also provided a plate welding deformation preventing method, which mainly adopts the above plate welding deformation preventing device to perform welding, including the following steps:
step one, the top surfaces of two rows of adjusting blocks 28 outside two opposite sides of a rectangular through hole on the positioning platform 1 are adjusted to be at the same plane height with the positioning platform 1, and the U-shaped water circulation bracket 5 is adjusted to be at the height 200mm lower than the rectangular through hole of the positioning platform 1; the above actions can be automatically completed by the integrated controller 29 in one time of synchronization;
step two, single-sided welding and double-sided forming welding (the U-shaped water circulation bracket 5 does not need the assistance of a gasket 9) or gasket 9 auxiliary welding (ceramic, copper, steel gaskets 9 and the like with corresponding process standards are paved above the U-shaped water circulation bracket 5) are selected according to the process requirements, and are locked for standby through a plurality of spring clamps 12;
step three, respectively paving two plates 2 with single-sided grooves processed on the outer sides of the rectangular through holes of the positioning platform 1, and cleaning the grooves of the plates 2 and the range of 20mm away from the grooves on the plates 2;
step four, adjusting the gap between the two plates 2 through the electric roller, and assembling and fixing;
step five, the reserved deformation of the plate 2 is adjusted by adjusting the heights of the two rows of adjusting blocks 28;
step six, fine-tuning the assembled plates 2 back and forth and left and right so that the grooves of the two plates 2 are adjacent and the contact center line of the two grooves is positioned at the position right in the middle of the rectangular through hole, and locking the two plates 2 by sliding the T-shaped sliding block 24;
step seven, the height of the U-shaped water circulation bracket 5 (comprising ceramic, copper and steel gaskets 9) is adjusted through the pressure sensor 11, so that an arc-shaped opening on the upper surface of the U-shaped water circulation bracket 5 is tightly attached to grooves of two plates 2;
step eight, starting a water circulation system (comprising a circulation water tank 21, a first electronic valve, a second electronic valve and the like) so as to cool and protect the U-shaped water circulation bracket 5;
step nine, starting a gas protection system (comprising a protective gas filling pipe 6) to uniformly feed gas to the sealed inner cavity of the U-shaped water circulation bracket 5 for protection;
step ten, performing backing layer welding and filling layer welding on grooves of the two plates 2, and monitoring and adjusting welding deformation allowance of the two plates 2 in real time by adjusting the heights of the two rows of adjusting blocks 28 and the height of the synchronous automatic lifting mechanism in the filling layer welding process;
and step eleven, after the welding of the two plates 2 is completed, closing the protective gas filling pipe 6, loosening the clamping structure 23, adjusting the adjusting block 28 and the U-shaped water circulation bracket 5 to the same height position of the positioning platform 1, moving out the two plates 2, and simultaneously laying a spare groove plate for preparing for welding of the next plate 2.
In the second step, single-sided welding, double-sided forming welding or gasket auxiliary welding can be performed according to the requirements of the field construction welding process; the single-sided welding double-sided forming operation is that before welding, a gasket 9 is not required to be paved on the U-shaped water circulation bracket 5 in advance, and the U-shaped water circulation bracket 5 can be directly used for forming a sealing air chamber to perform the gasket-free single-sided welding double-sided forming operation. The auxiliary welding of the gasket 9 is to lay the gasket 9 on the U-shaped water circulation bracket 5 in advance.
It should be noted that in the fourth step, the motorized roller may be mounted and embedded inside the positioning platform 1, and used for moving the plate 2 back and forth or left and right on the positioning platform 1, and when in use, the motorized roller will rise above the table top of the positioning platform 1, and then adjust the plate 2, including adjusting the straightness, the gap and the groove center position of the plate 2.
In the fifth step, a plurality of adjusting blocks 28 embedded into the positioning platform 1 are respectively disposed at two sides of the rectangular through hole in the middle of the positioning platform 1, and the plate 2 is lifted up by the adjusting blocks 28 when the reserved deformation amount is used for reverse deformation, so that the groove end of the plate 2 slightly lifts up to form a certain angle with the table top of the positioning platform 1, that is, the pre-deformation adjustment is completed.
In summary, the plate welding deformation preventing device and the plate welding deformation preventing method provided by the application have the advantages that the operation is simple, the labor intensity is reduced, the welding efficiency is improved, and the clamping device is automatically operated, and is safe and efficient, the labor intensity can be reduced, the welding quality of a welding line is improved, the problems of high-temperature deformation of a bracket, oxidation-resistant protection of the back surface and non-uniform forming width of the back surface of the welding line are effectively solved, the problem of plate deformation at the welded joint is solved, the problem of automatic adjustment and pre-deformation is solved, and the intensity of repeated repair of a field tearing liner 9 and welding defects and repeated turning-over labor of a crane is reduced. The U-shaped water circulation bracket 5 of the device solves the problem of high-temperature deformation of the welding platform and the plate 2, increases the first protective gas sealing gasket 8 and the second protective gas sealing gasket 10 which are resistant to high temperature, improves the protection effect, and can ensure the welding quality of welding seams. Meanwhile, through the design of the first T-shaped groove 18, the spring clamp 12, the scale marks and the pressure sensors 11, accurate positioning and close fitting of the gasket 9 can be completed through synchronous matching. In addition, the device integrates multiple purposes of single-sided welding double-sided molding circulating water cooling and gas protection U-shaped bracket of the adjustable welding gaskets 9, the copper gaskets 9 or the steel gaskets 9 or the ceramic gaskets 9 can be flexibly changed according to the field requirement, and the welding quality is automatically adjusted and ensured through the pressure sensor 11. Meanwhile, the device achieves the purpose of controlling welding deformation at any time by designing the clamping structure 23 to adjust the position of the plate 2, and further improves welding quality.
The above description is only of the preferred embodiments of the present application and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (10)
1. The plate welding deformation preventing device is characterized by comprising a positioning platform, wherein a rectangular through hole penetrating through the top and the bottom is formed in the positioning platform, and a liftable rectangular supporting plate is arranged in the rectangular through hole; a plurality of synchronous automatic lifting mechanisms are arranged below the rectangular supporting plate and used for driving the rectangular supporting plate to lift in the rectangular through hole; the upper surface of the rectangular supporting plate is provided with a U-shaped water circulation bracket extending along the length direction, a protective gas filling pipe extending along the length direction is arranged in a sealed inner cavity in the middle of the U-shaped water circulation bracket, a plurality of flow dividing small holes are uniformly distributed on two side walls of the protective gas filling pipe at intervals, and a filter screen is paved above the protective gas filling pipe; the filter screen is positioned in the arc-shaped opening of the U-shaped water circulation bracket and is arranged along the length direction of the U-shaped water circulation bracket; a first protective gas sealing gasket, a liner and a second protective gas sealing gasket are sequentially arranged above the filter screen along the length direction; two rows of pressure sensors are arranged on the rectangular supporting plate at intervals, and the two rows of pressure sensors are respectively abutted against the two opposite outer side walls of the U-shaped water circulation bracket and used for detecting the attaching force of the gasket; the U-shaped water circulation bracket is provided with two rows of spring clamps capable of moving along the width direction at intervals along the width direction, and the two rows of spring clamps are respectively abutted to two opposite outer side walls of the gasket and used for limiting the gasket.
2. The sheet welding deformation prevention apparatus of claim 1, wherein the U-shaped hydrologic cycle bracket includes a first side end cover plate, a U-shaped groove, a divider plate, a top pallet, and a second side end cover plate; the U-shaped groove is arranged on the upper surface of the rectangular supporting plate along the length direction of the rectangular supporting plate, and the opening of the U-shaped groove is upward; the partition plate is integrally formed in the middle of the bottom plate of the U-shaped groove along the length direction of the U-shaped groove, and divides the U-shaped groove into two sealed cavities; the first side end cover plate and the second side end cover plate are respectively sealed and cover-mounted at two opposite side ends of the U-shaped groove; the top supporting plate sealing cover is arranged on the upper surface of the U-shaped groove, and an arc-shaped supporting groove penetrating through the bottom is formed in the middle of the top supporting plate along the length direction; the protective gas filling pipe is arranged in a gap between the arc-shaped bracket and the partition plate, and one end of the protective gas filling pipe penetrates out of the first side end cover plate.
3. The plate welding deformation preventing device according to claim 2, wherein the top support plate is provided with two rows of first T-shaped grooves with inverted T-shaped cross sections at intervals along the width direction, and each row of first T-shaped grooves extends from the middle part of the top support plate to the outside of the side wall; the spring clamp capable of moving along the width direction of the top supporting plate is arranged in the first T-shaped groove, and a scale mark is arranged on one edge of the top surface of the first T-shaped groove and used for positioning the sliding position of the spring clamp.
4. The sheet welding deformation prevention apparatus of claim 1, wherein the pad comprises a copper pad, a steel pad, or a ceramic pad.
5. The plate welding deformation preventing device according to claim 1, wherein the sealed inner cavities of the U-shaped water circulation brackets are respectively connected with one end of a water inlet hose and one end of a water outlet hose, the other end of the water inlet hose is connected to a circulation water tank through a first electronic valve, and the other end of the water outlet hose is connected to the circulation water tank through a second electronic valve; and the circulating water tank is also connected with a supplementing water pipe.
6. The sheet welding anti-deformation device of claim 1, wherein the synchronous automatic lifting mechanism comprises a first lifting hydraulic cylinder for adjusting the height of the U-shaped water circulation bracket.
7. The plate welding deformation preventing device according to claim 1, wherein a plurality of second T-shaped grooves with inverted T-shaped cross sections are arranged on the positioning platform at intervals in parallel, the second T-shaped grooves are respectively arranged outside two opposite sides of the rectangular supporting plate at intervals, and clamping structures capable of sliding along the direction parallel to the length direction of the rectangular supporting plate are arranged in each second T-shaped groove and used for clamping plates with different sizes and different thicknesses; the clamping structures are arranged in two rows, and each row of clamping structures are arranged at intervals along the length direction of the positioning platform.
8. The sheet welding deformation preventing apparatus according to claim 7, wherein the clamping structure comprises a T-shaped slider having an inverted T-shaped cross section, a first screw, a second screw, a nut, and a clamping block; a scale mark is arranged on the top surface of the second T-shaped groove along the length direction of one edge and is used for positioning the sliding position of the T-shaped sliding block; the T-shaped sliding block is slidably arranged in the second T-shaped groove, and the top surface of the T-shaped sliding block is flush with the top surface of the second T-shaped groove; the first screw and the second screw are fixedly arranged on the top of the T-shaped sliding block at intervals; the clamping blocks are in threaded connection with the first screw and the second screw through the nuts in a height-adjustable mode and are used for clamping different plates.
9. The plate welding deformation preventing device according to claim 1, wherein two rows of mounting grooves penetrating through the top surface are uniformly formed in the positioning platform at intervals, the two rows of mounting grooves are respectively located outside two opposite sides of the rectangular through hole at intervals, and a circular connecting hole penetrating through the top bottom is formed in the bottom of each mounting groove; every the below of circular connecting hole all is provided with the second lift pneumatic cylinder, the drive end of second lift pneumatic cylinder pass circular connecting hole and extend in the mounting groove, and the transmission connect in regulating block in the mounting groove is used for adjusting the height of regulating block.
10. A method of preventing deformation in sheet welding, characterized in that the sheet welding preventing deformation device according to any one of claims 1 to 9 is used for welding, comprising the steps of:
step one, adjusting the top surfaces of two rows of adjusting blocks outside two opposite sides of the rectangular through hole on the positioning platform to be at the same plane height with the positioning platform, and adjusting the U-shaped water circulation bracket to be at the height 200mm lower than the rectangular through hole of the positioning platform;
selecting single-sided welding and double-sided forming welding according to the process requirements;
step three, respectively paving two plates with processed single-sided grooves outside two sides of the rectangular through hole of the positioning platform, and cleaning the grooves of the plates and the range of 20mm away from the grooves on the plates;
fourthly, adjusting the straightness, the gap and the center position of the groove of the two plates;
fifthly, adjusting the reserved deformation of the plate by adjusting the heights of the two rows of adjusting blocks;
step six, adjusting the two plates so that the grooves of the two plates are adjacent to each other and the contact center line of the two grooves is positioned at the position right in the middle of the rectangular through hole, and locking the two plates by sliding the T-shaped sliding block;
step seven, the height of the U-shaped water circulation bracket is adjusted through the pressure sensor, so that an arc-shaped opening on the upper surface of the U-shaped water circulation bracket is tightly attached to the grooves of the two plates;
step eight, starting a circulating water tank, a first electronic valve and a second electronic valve to cool and protect a sealed inner cavity of the U-shaped water circulation bracket;
step nine, starting the protective gas filling pipe to uniformly feed gas to protect the sealed inner cavity of the U-shaped water circulation bracket;
step ten, performing backing layer welding and filling layer welding on the grooves of the two plates, and adjusting welding deformation allowance of the two plates in real time by adjusting the heights of the two rows of adjusting blocks and the height of the synchronous automatic lifting mechanism in the filling layer welding process;
and step eleven, after the two plates are welded, closing the protective gas filling pipe, loosening the clamping structure, adjusting the adjusting block and the U-shaped water circulation bracket to the same height position of the positioning platform, and moving out the two plates.
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