A device for preventing welding deformation of a heavy plate

Abstract

The utility model provides a kind of big thick plate welding deformation maintenance device, it is related to welding auxiliary tool technical field.The big thick plate welding deformation maintenance device includes connecting frame body and jack, the both ends of connecting frame body are provided with first connecting part and second connecting part, first connecting part and second connecting part are used to be connected with first plate piece and second plate piece respectively, so as to install connecting frame body at the weld position of first plate piece and second plate piece to be welded.Jack is installed on connecting frame body, and the position of jack on connecting frame body is adjustable, when local deformation occurs in certain position of first plate piece and second plate piece, jack can be moved to the corresponding position, adjust local deformation by jack pressing down, until the deformation amount of adjusted deformation out-of-tolerance place is within preset range, thereby avoiding the problem of local out-of-tolerance, and further helping to ensure welding quality.

Description

Technical Field

[0001] This utility model relates to the field of welding auxiliary tools, and more specifically, to a device for preventing and maintaining welding deformation of thick plates. Background Technology

[0002] Welding is a commonly used connection and fixing method in the current construction process. However, deformation exceeding the tolerance is a common problem in the installation and welding of thick plate welds (such as the dome of a large storage tank). Failure to pass the acceptance test directly affects the quality and progress of the on-site project. Therefore, controlling deformation is an important factor that must be considered in the construction process.

[0003] Currently, when welding thick plates, weld seam assembly generally uses telephone card 1 (e.g., Figure 1 (as shown) or pistol card 2 (as shown) Figure 2 (As shown) to adjust weld gaps, misalignments, and angular deformations. However, the above-mentioned tooling is difficult to adjust local deformations, that is, it cannot adjust local deformations or areas with large deformations that occur during product prefabrication, installation, and welding. This can easily lead to local deviations, stress concentration, and other problems, resulting in product failure and rework. This increases safety risks, labor intensity, consumes more resources, reduces installation quality and efficiency, and increases construction costs. Utility Model Content

[0004] The purpose of this invention is to provide a device for preventing and controlling welding deformation of thick plates, which can improve the problems of local deformation that occur during the welding process of thick plates in the prior art.

[0005] The embodiments of this utility model can be implemented in the following ways:

[0006] A device for preventing welding deformation of thick plates is used to prevent deformation during the welding and fixing of a first plate and a second plate; the device for preventing welding deformation of thick plates includes:

[0007] A connecting frame, wherein a first connecting portion and a second connecting portion are respectively provided at both ends of the connecting frame, the first connecting portion and the second connecting portion being used to connect to the first plate and the second plate, respectively; and

[0008] A jack is mounted on the connecting frame, and the position of the jack on the connecting frame is adjustable; the jack is used to press down the first plate and / or the second plate so that the deformation of the plate and the second plate is within a preset range.

[0009] Optionally, the connecting frame is provided with a slide rail extending in the direction from the first connecting part to the second connecting part, and the jack cooperates with the slide rail to achieve position adjustment by sliding along the slide rail.

[0010] Optionally, the connecting frame includes a crossbeam made of H-beams, and the jack is slidably mounted on the crossbeam.

[0011] Optionally, the crossbeam includes an upper plate, a lower plate, and a vertical plate. The upper plate and the lower plate are spaced apart from each other in the vertical direction. The vertical plate is disposed between the upper plate and the lower plate, and the upper and lower ends of the vertical plate are fixedly connected to the upper plate and the lower plate, respectively. The first connecting part and the second connecting part are disposed below the lower plate.

[0012] Optionally, the connecting frame further includes a plurality of reinforcing ribs, which are disposed between the upper plate and the lower plate and are perpendicular to the vertical plate.

[0013] Optionally, the connecting frame may further include a counterweight beam installed above the crossbeam, the counterweight beam being made of square steel.

[0014] Optionally, the first connecting part is an ear plate structure, and the first connecting part has a first connecting hole for the pin to pass through. The first connecting part is used to connect with the mating ear on the first plate through the pin.

[0015] Optionally, the second connecting part is an ear plate structure, and the second connecting part has a second connecting hole for the pin to pass through. The second connecting part is used to connect with the mating lug on the second plate through the pin.

[0016] Optionally, the jack is detachably connected to the connecting frame.

[0017] Optionally, the thick plate welding deformation prevention device further includes a clamp, which is used to support the first plate or the second plate between the connecting frame and the first plate or the second plate, so as to rigidly fix the first plate or the second plate after the deformation is controlled by the jack.

[0018] The beneficial effects of the thick plate welding deformation prevention device provided by the embodiments of this utility model include:

[0019] This utility model provides a device for preventing and maintaining welding deformation of thick plates, used for preventing deformation during the welding and fixing of a first plate and a second plate, thus achieving the maintenance and prevention of deformation. The device includes a connecting frame and a jack. The connecting frame has a first connecting part and a second connecting part at both ends, which are used to connect to the first and second plates respectively. The connecting frame is then installed at the weld position of the first and second plates to be welded. The jack is mounted on the connecting frame, and its position is adjustable. When local deformation occurs at a certain position in the first or second plate, the jack can be moved to the corresponding position, and the local deformation can be adjusted by pressing down on the jack until the deformation at the point of deviation is within a preset range, thereby avoiding local deviation problems and helping to ensure welding quality. Attached Figure Description

[0020] The above-described features and advantages of this invention can be better understood after reading the following detailed description of the embodiments of this disclosure in conjunction with the accompanying drawings. In the drawings, the components are not necessarily drawn to scale, and components having similar related characteristics or features may have the same or similar reference numerals.

[0021] Figure 1 A schematic diagram of the structure of a telephone card in the prior art is shown;

[0022] Figure 2 A schematic diagram of the structure of a pistol clip in the prior art is shown;

[0023] Figure 3 A schematic diagram of the overall structure of the anti-deformation device for welding thick plates according to one aspect of the present invention is shown.

[0024] Figure 4 A schematic diagram of the structure of the thick plate welding deformation prevention device according to one aspect of the present invention when installed at the welding joint of the first plate and the second plate is shown.

[0025] Figure 5 A schematic diagram of the connection structure between the beam and the jack according to another aspect of the present invention is shown.

[0026] Figure label:

[0027] 100-Major thick plate welding deformation prevention device; 110-Connecting frame; 111-Horizontal beam; 112-Upper plate; 113-Lower plate; 114-Vertical plate; 115-Reinforcing rib plate; 116-Counterweight beam; 120-First connecting part; 121-First ear plate; 122-First connecting hole; 123-First pin; 130-Second connecting part; 131-Second ear plate; 132-Second connecting hole; 133-Second pin; 140-Jack; 150-Slider;

[0028] 210 - First plate; 211 - First lug; 220 - Second plate; 221 - Second lug. Detailed Implementation

[0029] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. It should be noted that the aspects described below with reference to the accompanying drawings and specific embodiments are merely exemplary and should not be construed as limiting the scope of protection of the present invention in any way.

[0030] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," "outer," or "vertical" appear, the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use, and does not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] At the same time, it should be noted that the terms "first" and "second" are used only for distinguishing descriptions and should not be interpreted as indicating or implying relative importance.

[0032] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified or limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, an integral connection, or a detachable connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or a connection within two components, etc. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] Figure 3 This is a schematic diagram of the overall structure of the thick plate welding deformation prevention device 100 provided in this embodiment. Figure 4 This is a schematic diagram showing the structure of the thick plate welding deformation prevention device 100 provided in this embodiment when installed at the welding joint of the first plate 210 and the second plate 220. Please refer to the attached diagram. Figure 3 and Figure 4This embodiment provides a welding deformation prevention device 100 for thick plates, which is used to prevent deformation during the welding and fixing of the first plate 210 and the second plate 220, thereby achieving the maintenance and prevention of deformation. The welding deformation prevention device 100 for thick plates includes a connecting frame 110 and a jack 140. The two ends of the connecting frame 110 are respectively provided with a first connecting part 120 and a second connecting part 130, which are used to connect with the first plate 210 and the second plate 220, respectively, so that the connecting frame 110 is installed at the weld position of the first plate 210 and the second plate 220 to be welded. The jack 140 is installed on the connecting frame 110, and the position of the jack 140 on the connecting frame 110 is adjustable. When a local deformation occurs at a certain position of the first plate 210 and the second plate 220, the jack 140 can be moved to the corresponding position, and the local deformation can be adjusted by pressing down the jack 140 until the deformation at the point of deviation after adjustment is within the preset range, thereby avoiding the problem of local deviation and helping to ensure welding quality.

[0034] The following is a further description of the thick plate welding deformation prevention device 100 provided in this embodiment:

[0035] Please continue to refer to the reference. Figure 3 and Figure 4 In the thick plate welding deformation prevention device 100 provided in this embodiment, the connecting frame 110 includes a crossbeam 111 made of H-beam steel, and the first connecting part 120 and the second connecting part 130 are arranged at both ends of the crossbeam 111 in the length direction.

[0036] The crossbeam 111 includes an upper plate 112, a lower plate 113, and a vertical plate 114. The upper plate 112 and the lower plate 113 are spaced apart relative to each other in the vertical direction. The vertical plate 114 is disposed between the upper plate 112 and the lower plate 113, and its upper and lower ends are fixedly connected to the upper plate 112 and the lower plate 113, respectively. A first connecting part 120 and a second connecting part 130 are disposed below the lower plate 113. Thus, when the first connecting part 120 is connected to the first plate and the second connecting part 130 is connected to the second plate, the first connecting part 120 and the second connecting part 130 are located between the crossbeam 111 and the first plate and the second plate. Specifically, the upper plate 112, lower plate 113, and vertical plate 114 are all elongated plate-like components. The width direction of the vertical plate 114 is oriented vertically, with both ends of the vertical plate 114 fixedly connected to the upper plate 112 and lower plate 113 respectively. Simultaneously, the length direction of the vertical plate 114 extends along the length directions of the upper plate 112 and lower plate 113, thus forming a beam 111 with an I-shaped vertical cross-section at all points along its length. The upper plate 112, lower plate 113, and vertical plate 114 can be integrally formed and fixedly connected. The first connecting part 120 and the second connecting part 130 respectively fix the lower end face of the lower plate 113 at both ends along its length.

[0037] Furthermore, the connecting frame 110 also includes multiple reinforcing ribs 115, which are disposed between the upper plate 112 and the lower plate 113, and perpendicular to the vertical plate 114. Specifically, the reinforcing ribs 115 are square plate-shaped pieces, disposed on one side of the vertical plate 114 in the space between the upper plate 112 and the lower plate 113. The upper end of the reinforcing rib 115 is fixedly connected to the upper plate 112, the lower end is fixedly connected to the lower plate 113, and the horizontal side is fixedly connected to the vertical plate 114. By providing the reinforcing ribs 115, the crossbeam 111 can be strengthened and supported. The multiple reinforcing ribs 115 are spaced apart along the length of the crossbeam 111.

[0038] Furthermore, reinforcing ribs 115 are provided on both sides of the vertical plate 114. The reinforcing ribs 115 on both sides of the vertical plate 114 can be symmetrically distributed along the vertical plate 114, or they can be staggered along the length of the horizontal beam 111.

[0039] Furthermore, the connecting frame 110 also includes a counterweight beam 116 installed above the crossbeam 111. The counterweight beam 116 is made of square steel and extends along the length of the crossbeam 111 and is fixed to the crossbeam 111. Optionally, the counterweight beam 116 is fixedly connected to the crossbeam 111 by welding, and the lower wall surface of the counterweight beam 116 is fitted and fixedly connected to the upper wall surface of the upper plate 112 of the crossbeam 111.

[0040] In this embodiment, the first connecting part 120 is an ear plate structure, which is provided with a first connecting hole 122 for the pin to pass through. The first connecting part 120 is used to connect with the mating ear on the first plate 210 through the pin. Correspondingly, the thick plate welding deformation prevention device 100 may also include a pin that connects the first connecting part 120 and the first plate 210, which is a first pin 123.

[0041] Specifically, the first connecting part 120 includes two ear plates spaced apart from each other along the width direction of the crossbeam 111. These two ear plates are first ear plates 121, and the two first ear plates 121 are provided with coaxially distributed first connecting holes 122. The mating lugs on the first plate 210 are first lugs 211, which are welded and fixed to the first plate 210. The first lugs 211 are provided with first lug holes. When connecting the first connecting part 120 to the first plate, the first lugs 211 are inserted into the gap between the two first ear plates 121, and the first lug holes 211 and the two first connecting holes 122 are coaxially arranged to form an insertion channel for the first pin 123. Then, the first pin 123 is inserted into the insertion channel, thereby realizing the connection between the first connecting part 120 and the first plate.

[0042] In this embodiment, the second connecting part 130 is an ear plate structure, which is provided with a second connecting hole 132 for the pin to pass through. The second connecting part 130 is used to connect with the mating ear on the second plate 220 through the pin. Correspondingly, the thick plate welding deformation prevention device 100 may also include a pin for connecting the second connecting part 130 and the second plate 220, which is a second pin 133.

[0043] Specifically, the second connecting part 130 includes two ear plates spaced apart from each other along the width direction of the crossbeam 111. These two ear plates are called second ear plates 131, and the two second ear plates 131 are provided with coaxially distributed second connecting holes 132. The mating lugs on the second plate 220 are called second lugs 221. The second lugs 221 are welded and fixed to the second plate 220, and the second lugs 221 are provided with second lug holes. When connecting the second connecting part 130 to the second plate, the second lugs 221 are inserted into the gap between the two second ear plates 131, and the first lug holes 211 and the two first connecting holes 122 are coaxially arranged to form an insertion channel for the first pin 123. Then, the first pin 123 is inserted into the insertion channel, thereby realizing the connection between the first connecting part 120 and the first plate.

[0044] It should be noted that the connection method between the first connecting part 120 and the first plate and the connection method between the second connecting part 130 and the second plate are not limited here. It is understood that in some other embodiments, other methods can also be used, such as bolt fastening.

[0045] In this embodiment, the jack 140 is slidably mounted on the connecting frame 110, thereby adjusting the position of the jack 140 by sliding to meet the adjustment needs of different parts. Specifically, the connecting frame 110 is provided with a slide rail extending along the direction from the first connecting portion 120 to the second connecting portion 130. The jack 140 cooperates with the slide rail, thereby achieving position adjustment by sliding along the slide rail. It should be noted that, in the description of this embodiment, the direction from the first connecting portion 120 to the second connecting portion 130 is the length direction of the crossbeam 111.

[0046] Optionally, the slide rail can be a groove extending along the length direction on the lower plate 113 of the crossbeam 111. Correspondingly, a protrusion that slides with the groove is provided on the top of the jack 140, thereby achieving a sliding fit. It is understood that in some other embodiments, other methods can also be used to achieve a sliding fit between the jack 140 and the connecting frame 110. As an example, Figure 5 Another connection method between the crossbeam 111 and the jack 140 is shown, such as... Figure 5 As shown, a slider 150 is provided on the lower plate 113 of the crossbeam 111. The slider 150 is held on the lower plate 113 to achieve sliding engagement with the slider 150. At the same time, in order to provide a notch on the reinforcing rib plate 115 corresponding to the sliding trajectory of the slider 150, so as to avoid the reinforcing rib plate 115 interfering with the sliding of the slider 150.

[0047] It should be noted that the connection structure between the jack 140 and the connecting frame 110 is not limited to a sliding fit connection. It is understood that in other embodiments, other methods can also be used to achieve an adjustable installation position of the jack 140 on the connecting frame 110. For example, multiple through holes distributed along the length direction can be opened on the lower plate 113 of the crossbeam 111. When in use, the jack 140 can be installed by selecting the corresponding through hole according to the position to be adjusted.

[0048] Furthermore, the jack 140 is detachably connected to the connecting frame 110. Specifically, the protrusion on the top of the jack 140 that slides along the groove can be a screw. When the jack 140 needs to be installed on the connecting frame 110, it is locked with a nut; when the position of the jack 140 needs to be moved, the nut can be loosened to allow it to slide freely along the groove; when the jack 140 needs to be removed, the nut can be removed from the screw, thus making the jack 140 detachable from the connecting frame 110. Similarly, when using... Figure 5 In the sliding fit structure shown, the jack 140 can be detachably connected to the slider 150 to achieve the detachable connection between the jack 140 and the connecting frame 110.

[0049] In this embodiment, the thick plate welding deformation prevention device 100 also includes a clamp, which is used to support the connecting frame 110 and the first plate 210 or the second plate 220 to rigidly fix the first plate 210 or the second plate 220 after the deformation is controlled by the jack 140. In other words, the clamp is a rigid pad, which can be in the shape of a thick plate or a block.

[0050] The thick plate welding deformation prevention device 100 provided in this embodiment of the present invention, in use, firstly connects the first connecting part 120 to the first lug 211 on the first plate 210 via the first pin 123, and connects the second connecting part 130 to the second lug 221 on the second plate 220 via the second pin 133. Then, the jack 140 is moved to the position of excessive deformation. By adjusting the jack 140, the deformation at the position of excessive deformation is brought to the preset installation size requirements, thereby eliminating the problem of excessive local deformation and achieving control of local deformation, misalignment, edge angle, etc. At the same time, after the problem of excessive local deformation is eliminated, a clamp can be inserted under the crossbeam 111 as a rigid fixation for deformation, thereby achieving the purpose of controlling welding deformation. The jack 140 in this thick plate welding deformation prevention device 100 can move arbitrarily along the length of the connecting frame 110, thereby increasing the adjustment area and effectively controlling deformation. Simultaneously, the device's specifications can be adjusted to adapt to the degree and range of deformation of the actual components being adjusted, resulting in more uniform force distribution. Compared to the telephone card 1 and pistol card 2, this avoids localized adjustments failing to meet requirements or stress concentration. The wide force-bearing area of ​​the plate to be welded makes the force distribution in the adjustment area more uniform, making it suitable for controlling areas with significant deformation.

[0051] The thick plate welding deformation prevention device 100 provided in the embodiments of this utility model reduces rework due to excessive deformation, improves installation quality and efficiency, and saves construction costs, while ensuring that the assembly, installation, welding quality and deformation deviation of thick-walled welds such as the dome of large storage tanks meet the design requirements.

[0052] The above description is only a specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for preventing welding deformation in thick plates, characterized in that, For deformation prevention during welding and fixing of the first and second plates; the thick plate welding deformation prevention device includes: A connecting frame, wherein a first connecting portion and a second connecting portion are respectively provided at both ends of the connecting frame, the first connecting portion and the second connecting portion being used to connect to the first plate and the second plate, respectively; and A jack is mounted on the connecting frame, and the position of the jack on the connecting frame is adjustable; the jack is used to press down the first plate and / or the second plate so that the deformation of the plate and the second plate is within a preset range.

2. The device for preventing welding deformation of thick plates according to claim 1, characterized in that, The connecting frame is provided with a slide rail extending in the direction from the first connecting part to the second connecting part. The jack cooperates with the slide rail to achieve position adjustment by sliding along the slide rail.

3. The device for preventing welding deformation of thick plates according to claim 2, characterized in that, The connecting frame includes a crossbeam made of H-beams, and the jack is slidably mounted on the crossbeam.

4. The device for preventing welding deformation of thick plates according to claim 3, characterized in that, The crossbeam includes an upper plate, a lower plate, and a vertical plate. The upper plate and the lower plate are spaced apart from each other in the vertical direction. The vertical plate is disposed between the upper plate and the lower plate, and the upper and lower ends of the vertical plate are fixedly connected to the upper plate and the lower plate, respectively. The first connecting part and the second connecting part are disposed below the lower plate.

5. The device for preventing welding deformation of thick plates according to claim 4, characterized in that, The connecting frame also includes multiple reinforcing ribs, which are disposed between the upper plate and the lower plate and are perpendicular to the vertical plate.

6. The device for preventing welding deformation of thick plates according to claim 3, characterized in that, The connecting frame also includes a counterweight beam installed above the crossbeam, the counterweight beam being made of square steel.

7. The device for preventing and controlling welding deformation of thick plates according to claim 1, characterized in that, The first connecting part is an ear plate structure, and the first connecting part has a first connecting hole for the pin shaft to pass through. The first connecting part is used to connect with the mating ear on the first plate through the pin shaft.

8. The device for preventing welding deformation of thick plates according to claim 1, characterized in that, The second connecting part is an ear plate structure, and the second connecting part has a second connecting hole for the pin to pass through. The second connecting part is used to connect with the mating lug on the second plate through the pin.

9. The device for preventing welding deformation of thick plates according to claim 1, characterized in that, The jack is detachably connected to the connecting frame.

10. The device for preventing welding deformation of thick plates according to claim 1, characterized in that, The thick plate welding deformation prevention device also includes a clamp, which is used to support the first plate or the second plate between the connecting frame and the first plate or the second plate, so as to rigidly fix the first plate or the second plate after the deformation is controlled by the jack.

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