Precise steel structure welding anti-deformation device

Abstract

The utility model discloses a precision steel structure welding anti-deformation device which comprises a fixing frame, the fixing frame is in a rectangular hollow shape, the top faces of the two ends of the fixing frame are both fixedly connected with first supporting blocks, and a two-way threaded rod is rotationally connected between the two first supporting blocks. By arranging the supporting plates to be located on the opposite outer sides of the two steel pipes, the supporting plates and the clamping plates can form a cross shape to limit the steel structures, the alignment effect of the steel structures is kept, meanwhile, the longitudinal expansion deformation condition generated by welding is avoided, and the welding quality is improved. The clamping device is simple in structure, convenient to use, capable of preventing shaking and displacement caused by heat influence in the welding process, capable of guaranteeing accuracy of welding operation, capable of being used in cooperation with a clamping plate to form longitudinal and transverse common clamping, capable of limiting thermal expansion and cold contraction of a steel structure in the welding process in an all-around mode and capable of effectively reducing various kinds of deformation such as contraction, bending and distortion.

Description

Technical Field

[0001] The utility model relates to the field of steel structure processing, in particular to a precision steel structure welding anti-deformation device. Background Art

[0002] In modern manufacturing, steel structures are widely used in many fields such as construction, bridges, and machinery manufacturing due to their high strength, good plasticity and durability. However, during the welding process of steel structures, due to uneven heating and cooling, welding residual stress and deformation that cannot be ignored will be generated.

[0003] For example, when welding pipes for some precision steel structures, workers usually rely on their experience and manual operation to control welding deformation. However, this method often makes it difficult to ensure the stability and consistency of welding quality. Especially for precision steel structures, slight deformations may lead to reduced structural accuracy, damage to mechanical properties, and even affect the use function and safety of the entire product.

[0004] Therefore, a precision steel structure welding anti-deformation device is proposed. Utility Model Content

[0005] In view of the above problems, the utility model provides a precision steel structure welding anti-deformation device to solve the problems raised in the above background technology.

[0006] The technical solution of the utility model is:

[0007] A precision steel structure welding anti-deformation device comprises a fixed frame, the fixed frame is in a "rectangular" hollow shape, the top surfaces of both ends of the fixed frame are fixedly connected to the first support blocks, a two-way threaded rod is rotatably connected between the two first support blocks, one end of the two-way threaded rod is fixedly connected to the first threaded bolt located on the outside of the first support block, two opposing clamps are arranged on the surface of the two-way threaded rod, a guide rod is fixedly connected between the two first support blocks, a threaded opening threadedly connected to the two-way threaded rod is opened on the surface of the clamp, a sliding opening opened on the surface of the clamp is arranged above the threaded opening, and the sliding opening is slidably connected to the guide rod, two opposing steel pipes are arranged between the two clamps, and the distance between the two clamps is greater than the spacing between the steel pipes, the opposing surfaces of the two clamps are fixedly connected to a support frame, and the cross-sectional width of the support frame is consistent with the inner diameter of the steel pipe.

[0008] The working principle of the above technical solution is as follows:

[0009] By clamping two steel pipes relative to each other with clamps, the tightness of the precision steel structure in the lateral direction during welding can be maintained. By setting it along the length direction of the steel structure, the horizontal stiffness of the component can be increased and the horizontal shrinkage deformation during welding can be reduced. At the same time, the support frame is set to be consistent with the inner diameter of the steel pipe, which can make the tubular steel structure have an inside-out support effect and limit deformation during welding.

[0010] In a further technical solution, second support blocks are fixedly connected to both sides of the top surface of the fixed frame, studs are rotatably connected to the surfaces of the two second support blocks, and the patterns of the two studs are opposite, a guide bar is fixedly connected between the two second support blocks, a threaded sleeve is threadedly connected to the surface of the stud, a guide port is provided on the surface of the threaded sleeve, the guide port is slidably connected to the guide bar, a support plate is fixedly connected to the top of the threaded sleeve, and the opposite surfaces of the two support plates face the outside of the opposite surfaces of the two steel pipes respectively.

[0011] In a further technical solution, a connecting rod is fixedly connected between the two studs.

[0012] Through the above technical solution, it is convenient to control the two studs to rotate simultaneously.

[0013] In a further technical solution, one end of the stud is fixedly connected to a second threaded bolt, and surfaces of the first threaded bolt and the second threaded bolt are both threadedly connected to fastening nuts.

[0014] Through the above technical solution, it is convenient to lock the rotation state of the bidirectional threaded rod and the stud.

[0015] In a further technical solution, the support frame is "X"-shaped.

[0016] Through the above technical solution, "X"-shaped supports form cross supports in the steel structure, which can effectively resist forces from different directions, improve the overall stability and lateral resistance of the structure, and help distribute the stress generated by the load more evenly throughout the structure, avoiding stress concentration in certain parts, thereby reducing the risk of local deformation and damage.

[0017] In a further technical solution, the surface of the support plate is provided with an anti-slip surface, and the support plate is rectangular.

[0018] Through the above technical solution, by providing an anti-slip surface on the rectangular surface of the support plate, the overall stability of the relative limitation of the steel structure and the anti-slip property can be improved.

[0019] Compared with the prior art, the utility model has the following beneficial effects:

[0020] By arranging the support plate on the relatively outer sides of the two steel pipes, the support plate and the clamping plate can form a cross to limit the steel structure and maintain the alignment of the steel structure. At the same time, the longitudinal expansion and deformation caused by welding can be avoided, and the shaking and displacement caused by heat during the welding process can be prevented. The accuracy of the welding operation is guaranteed. It can be used in conjunction with the clamping plate to form a longitudinal and lateral joint clamp, which can fully limit the thermal expansion and contraction of the steel structure during the welding process, and effectively reduce various deformations such as shrinkage, bending, and twisting. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 It is a schematic diagram of the assembly structure of the steel pipe and the fixed frame of the utility model;

[0023] Figure 3 It is a schematic diagram of the assembly structure of the bidirectional threaded rod and the clamping plate of the utility model;

[0024] Figure 4 It is a schematic diagram of the assembly structure of the fixed frame and the support plate of the utility model.

[0025] Description of reference numerals:

[0026] 1. Fixed frame; 2. First support block; 3. Bidirectional threaded rod; 4. First threaded bolt; 5. Clamp; 6. Guide rod; 7. Slide; 8. Threaded mouth; 9. Steel pipe; 10. Support frame; 11. Second support block; 12. Stud; 13. Guide strip; 14. Threaded sleeve; 15. Guide mouth; 16. Support plate; 17. Anti-slip surface; 18. Second threaded bolt; 19. Fastening nut; 20. Connecting rod. DETAILED DESCRIPTION

[0027] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0028] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] Example:

[0031] See also Figure 1-4 , a precision steel structure welding anti-deformation device, comprising a fixed frame 1, the fixed frame 1 is in a "rectangular" hollow shape, the top surfaces of both ends of the fixed frame 1 are fixedly connected with first support blocks 2, a two-way threaded rod 3 is rotatably connected between the two first support blocks 2, one end of the two-way threaded rod 3 is fixedly connected with a first threaded bolt 4 located on the outside of the first support block 2, two opposite clamps 5 are arranged on the surface of the two-way threaded rod 3, a guide rod 6 is fixedly connected between the two first support blocks 2, a threaded opening 8 threadedly connected to the two-way threaded rod 3 is opened on the surface of the clamp 5, a sliding opening 7 opened on the surface of the clamp 5 is arranged above the threaded opening 8, and the sliding opening 7 is slidably connected to the guide rod 6, two opposite steel pipes 9 are arranged between the two clamps 5, and the distance between the two clamps 5 is greater than the spacing between the steel pipes 9, and the opposite surfaces of the two clamps 5 are fixedly connected with a support frame 10, and the cross-sectional width of the support frame 10 is consistent with the inner diameter of the steel pipe 9.

[0032] The working principle of the above technical solution is as follows:

[0033] By clamping the two steel pipes 9 relative to each other by the clamping plates 5, firstly, the tightness of the precision steel structure in the lateral direction during welding can be maintained. By arranging it along the length direction of the steel structure, the horizontal stiffness of the component can be increased and the horizontal shrinkage deformation during welding can be reduced. At the same time, the support frame 10 is arranged to be consistent with the inner diameter of the steel pipe 9, so that the tubular steel structure can have an inside-out support effect, thereby limiting deformation during welding.

[0034] See also Figure 1 The second support blocks 11 are fixedly connected to both sides of the top surface of the fixed frame 1, and the surfaces of the two second support blocks 11 are rotatably connected with studs 12, and the patterns of the two studs 12 are opposite. A guide strip 13 is fixedly connected between the two second support blocks 11, and a threaded sleeve 14 is threadedly connected to the surface of the stud 12. A guide port 15 is provided on the surface of the threaded sleeve 14, and the guide port 15 is slidably connected to the guide strip 13. A support plate 16 is fixedly connected to the top of the threaded sleeve 14, and the opposite surfaces of the two support plates 16 face the outside of the opposite surfaces of the two steel pipes 9 respectively.

[0035] See also Figure 1 and Figure 2 A connecting rod 20 is fixedly connected between the two studs 12.

[0036] It is convenient to control the two studs 12 to rotate simultaneously.

[0037] See also Figure 1 and Figure 4 One end of the stud 12 is fixedly connected to a second threaded bolt 18 , and surfaces of the first threaded bolt 4 and the second threaded bolt 18 are both threadedly connected to a fastening nut 19 .

[0038] It is convenient to lock the rotation state of the bidirectional threaded rod 3 and the stud 12.

[0039] See also Figure 1 and Figure 2 , the support frame 10 is "X" shaped.

[0040] The "X"-shaped support forms a cross support in the steel structure, which can effectively resist forces from different directions, improve the overall stability and lateral resistance of the structure, and help distribute the stress generated by the load more evenly throughout the structure, avoiding stress concentration in certain parts, thereby reducing the risk of local deformation and damage.

[0041] See also Figure 1 and Figure 4 The surface of the support plate 16 is provided with an anti-slip surface 17, and the support plate 16 is rectangular.

[0042] By providing the anti-skid surface 17 on the rectangular surface of the support plate 16, the overall stability of the relative position limitation of the steel structure and the anti-skid property can be improved.

[0043] During operation, the two relative steel pipe 9 steel structures are placed above the fixed frame 1 and between the two clamping plates 5, and then the first threaded bolt 4 is rotated to allow the bidirectional threaded rod 3 to rotate, and the second threaded bolt 18 is rotated to allow the stud 12 to rotate. During the process, the two clamping plates 5 are relatively close to the two ends of the steel pipe 9, and the two support plates 16 are close to the intersection of the two steel pipes 9. When the surfaces of the support plates 16 and the clamping plates 5 are in contact with the surfaces of the steel pipe 9, so that the two steel pipes 9 are closely aligned, the support frame 10 will be supported on the inner wall of the steel pipe 9. When the steel structure is a plate-like object, the two support frames 10 can clamp the plates relatively to each other, and the effects are consistent. Then the two relative steel structures can be welded. During the steel structure welding process, the longitudinal and transverse clamping work together to achieve effective control of welding deformation and improve welding quality. The transverse clamping applies pressure and restraint in the length direction of the steel structure. When the welding area expands due to heat, the transverse clamping prevents the steel structure from excessively stretching in the length direction, limiting the Transverse thermal expansion. During the cooling and shrinking stage, the continuously applied clamping force can constrain the lateral shrinkage of the steel structure, thereby reducing the dimensional changes caused by thermal expansion and contraction in the length direction, ensuring the length accuracy and straightness of the steel structure. The longitudinal clamping device plays a role in the width direction of the steel structure. During welding, the longitudinal clamping prevents the steel structure from excessively expanding to both sides under the heating state, maintaining the stability of its width dimension. During the cooling process, it prevents the steel structure from shrinking in the width direction, avoiding inconsistent width or lateral bending, and ensuring the flatness and width accuracy of the steel structure. Through the coordinated work of the longitudinal and transverse clamping devices, the steel structure is effectively constrained and controlled in all directions during the welding process. This all-round clamping enables the heat generated by welding to be more evenly distributed and transferred, reducing the concentration of local thermal stress. At the same time, the clamping force also helps to disperse the welding stress to the entire structure, reducing the probability of deformation and welding defects caused by stress concentration.

[0044] The above-mentioned embodiments only express the specific implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A precision steel structure welding anti-deformation device, characterized in that: The invention comprises a fixed frame (1), wherein the fixed frame (1) is in a "rectangular" hollow shape, the top surfaces of both ends of the fixed frame (1) are fixedly connected to first support blocks (2), a bidirectional threaded rod (3) is rotatably connected between the two first support blocks (2), one end of the bidirectional threaded rod (3) is fixedly connected to a first threaded bolt (4) located outside the first support block (2), two opposite clamping plates (5) are arranged on the surface of the bidirectional threaded rod (3), a guide rod (6) is fixedly connected between the two first support blocks (2), and the clamping plates (5) are A threaded opening (8) is provided on the surface and is threadedly connected to the bidirectional threaded rod (3); a sliding opening (7) is provided on the surface of the clamping plate (5) above the threaded opening (8); and the sliding opening (7) is slidably connected to the guide rod (6); two opposing steel pipes (9) are provided between the two clamping plates (5); and the distance between the two clamping plates (5) is greater than the spacing between the steel pipes (9); the opposing surfaces of the two clamping plates (5) are fixedly connected to a support frame (10); and the cross-sectional width of the support frame (10) is consistent with the inner diameter of the steel pipe (9).

2. A precision steel structure welding anti-deformation device according to claim 1, characterized in that: The top surface of the fixed frame (1) is fixedly connected to second support blocks (11) on both sides, the surfaces of the two second support blocks (11) are rotatably connected to studs (12), and the patterns of the two studs (12) are opposite, a guide strip (13) is fixedly connected between the two second support blocks (11), the surfaces of the studs (12) are threadedly connected to threaded sleeves (14), the surface of the threaded sleeve (14) is provided with a guide opening (15), the guide opening (15) is slidably connected to the guide strip (13), the top of the threaded sleeve (14) is fixedly connected to a support plate (16), and the opposing surfaces of the two support plates (16) face the outside of the opposing surfaces of the two steel pipes (9) respectively.

3. A precision steel structure welding anti-deformation device according to claim 2, characterized in that: A connecting rod (20) is fixedly connected between the two studs (12).

4. A precision steel structure welding anti-deformation device according to claim 2, characterized in that: One end of the stud (12) is fixedly connected to a second threaded bolt (18), and surfaces of the first threaded bolt (4) and the second threaded bolt (18) are both threadedly connected to a fastening nut (19).

5. The precision steel structure welding anti-deformation device according to claim 1 is characterized in that: The support frame (10) is in an "X" shape.

6. A precision steel structure welding anti-deformation device according to claim 2, characterized in that: The surface of the support plate (16) is provided with an anti-slip surface (17), and the support plate (16) is rectangular.

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