Welding straightening device

Abstract

The utility model discloses an butt welding shape correcting device, wherein, the device includes: base, the load surface of base is equipped with support seat, support seat is equipped with with the first recess groove of being adapted to the work piece of processing, longitudinal beam, is equipped with longitudinal beam respectively at the both sides of support seat, and the inside vertical of each longitudinal beam is provided with linear guide rail, the pressure seat, the pressure seat is equipped with in the top side of support seat, and the second recess groove corresponding with first recess groove is opened, and the both sides of pressure seat are respectively with the linear guide rail swing joint of corresponding side, power assembly, power assembly is connected with longitudinal beam, and the power axle of power assembly is connected with pressure seat, the support seat still includes up and down adjusting structure and left and right adjusting structure. The welding quality has been improved.

Description

Technical Field

[0001] This utility model relates to the field of machining, and in particular to a welding straightening device. Background Technology

[0002] Currently, after the circular shell is rolled into shape, due to its thin wall material, it deforms into an elliptical or irregular shape under its own weight. During the assembly of segmented cylinders, the inconsistent deformation of the segments leads to inconsistent misalignment, with some misalignment values ​​exceeding the requirements of standards and relevant specifications. Furthermore, the excessive and inconsistent misalignment values ​​result in inconsistent weld penetration, unstable welding current and voltage, and a high risk of incomplete weld fusion or penetration, leading to weld repairs and weld defects.

[0003] There is currently no effective solution to the above problems in existing technologies. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides a welding alignment device that uses the weight of the clamping seat and the pressure provided by the power component to align the roundness of the shell end. It also uses vertical and horizontal fine-tuning structures to adjust the multi-section shell to a concentric position, while simultaneously achieving uniform misalignment of the end faces of the segmented shells. This solves the problems of segmented cylinder deformation and poor welding results in the prior art.

[0005] To achieve the aforementioned objective, this utility model provides a welding alignment device, comprising: a base, wherein a support seat is provided on the bearing surface of the base, and the support seat is provided with a first groove adapted to the workpiece to be processed; longitudinal beams, wherein longitudinal beams are respectively provided on both sides of the support seat, and a linear guide rail is vertically arranged on the inner side of each longitudinal beam; a clamping seat, wherein the clamping seat is located on one side of the top of the support seat, and a second groove corresponding to the first groove is formed, and both sides of the clamping seat are respectively movably connected to the corresponding linear guide rails; a power assembly, wherein the power assembly is connected to the longitudinal beams, and the power shaft of the power assembly is connected to the clamping seat; the support seat further includes an up-down adjustment structure and a left-right adjustment structure.

[0006] Further optionally, a support plate is included, which is fixed between the longitudinal beams; the power assembly is disposed on the support plate.

[0007] Optionally, the power component is a hydraulic device; the piston rod of the hydraulic device passes through the support plate and is connected to the clamping seat.

[0008] Alternatively, the power assembly can be connected to the clamping seat via a positioning block.

[0009] Further optionally, the height adjustment structure includes a first fine-tuning screw, and the support base is connected to the base via the first fine-tuning screw for adjusting the height of the support base.

[0010] Further optionally, the left and right adjustment structure includes a horizontal adjustment block and a second fine-tuning screw, and the support base is connected to the horizontal adjustment block through the second fine-tuning screw for adjusting the position of the support base in the horizontal direction.

[0011] Optionally, both the first and second grooves are provided with elastic buffer pads.

[0012] Alternatively, the clamping seat is connected to the base plate via a fixed seat; the base plate is fixed to the slider of the linear guide rail.

[0013] Alternatively, the linear guide rail is a dual-rail structure, arranged in pairs on the inner side of the two longitudinal beams.

[0014] On the other hand, this utility model also provides a welding alignment method, including: placing a first workpiece to be processed into a first groove of a support base, with the end face extending a predetermined length; controlling the pressing seat to move downwards via a power component until it contacts the housing; checking the force on the workpiece to be processed, and when the force is uniform, continuing to control the pressing seat to press down via the power component until the pressing seat contacts the end face of the support base; placing the aligned first workpiece to be processed and a second workpiece to be processed on support bases in the same row of the base, and adjusting the up-down adjustment structure and the left-right adjustment structure to make the first workpiece to be processed and the second workpiece to be processed concentric.

[0015] The above technical solution has the following beneficial effects: by aligning the end faces of the clamping seat and support seat that are adapted to the workpiece to be processed, the roundness and misalignment of the workpiece end are ensured to be consistent; by using the up-down adjustment structure and the left-right adjustment structure to adjust the concentricity of the housing and the assembly gap, the final welding quality is improved; by using the linear guide rail to drive the clamping seat to slide up and down, the precision of the adjustment is improved. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of the welding straightening device provided in this embodiment of the utility model;

[0018] Figure 2This is a schematic diagram of the welding and straightening device for adjusting the segmented shell provided in this embodiment of the utility model;

[0019] Figure 3 This is a flowchart of the welding and straightening method provided in this embodiment of the utility model.

[0020] Reference numerals in the attached drawings: 1-base; 2-longitudinal beam; 3-clamping seat; 4-support plate; 5-up-down adjustment structure; 6-support seat; 7-fixed seat; 8-linear guide rail; 9-power component; 10-left-right adjustment structure; 11-first workpiece to be processed; 12-positioning block; 13-base plate; 14-second workpiece to be processed. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] To address the problem of poor welding quality in segmented shells in existing technologies, this utility model provides a welding straightening device. Please refer to [the relevant documentation]. Figure 1-2 , Figure 1 This is a schematic diagram of the structure of the welding straightening device provided in this embodiment of the utility model; Figure 2 This is a schematic diagram of the welding and straightening device for adjusting the segmented shell provided in this embodiment of the utility model.

[0023] The device includes: a base 1, with a support seat 6 on the bearing surface of the base 1, the support seat 6 having a first groove adapted to the workpiece to be processed; longitudinal beams 2, with longitudinal beams 2 on both sides of the support seat 6, and a linear guide rail 8 vertically arranged on the inner side of each longitudinal beam 2; a clamping seat 3, with a clamping seat 3 located on the top side of the support seat 6, having a second groove corresponding to the first groove, and both sides of the clamping seat 3 being movably connected to the corresponding linear guide rail 8; a power assembly 9, with the power assembly 9 connected to the longitudinal beams 2, and the power shaft of the power assembly 9 connected to the clamping seat 3; the support seat 6 also includes a vertical adjustment structure 5 and a horizontal adjustment structure 10.

[0024] The base 1 serves as the load-bearing foundation of the structural frame, constructed from welded steel profiles, providing excellent overall rigidity. A bearing surface is provided on the base 1 for mounting and positioning other structural components. An adjustable support 6 is located on the bearing surface to support the cylindrical workpiece to be processed.

[0025] The support base 6 is located on the bearing surface of the base 1, and its top is provided with a first groove. The first groove is an arc-shaped structure used to match the outer arc contour of the shell to be processed, so as to ensure contact stability and support accuracy.

[0026] The support base 6 has two key adjustment structures:

[0027] The vertical adjustment structure 5 (also known as the height fine-tuning structure) is usually a threaded lifting mechanism or a wedge-shaped adjustable component. By rotating the adjusting screw, the height of the support base 6 can be changed to achieve fine adjustment of the workpiece to be processed in the vertical direction.

[0028] The left and right adjustment structure 10 (also known as the horizontal fine adjustment structure) often adopts a side-mounted lead screw or a limit slide mechanism to adjust the position of the support 6 in the horizontal direction and achieve the purpose of axial centering of the workpiece.

[0029] The two adjustment structures described above allow for fine-tuning of the shell's height and center position, thereby correcting attitude deviations and ensuring concentricity and gap consistency with the docking section shell.

[0030] Longitudinal beams 2 are symmetrically arranged on both sides of the support base 6. The longitudinal beams 2 are fixed to both sides of the base 1 and extend longitudinally to form a stable frame structure. One or more sets of linear guide rails 8 are vertically arranged on the inner side of each longitudinal beam 2 to guide and limit the vertical movement trajectory of the upper structure (i.e., the clamping seat 3).

[0031] The linear guide rail 8, in conjunction with the slider mechanism, enables the pressing seat 3 to move up and down in a high-precision linear manner, avoiding offset, tilting or jamming during the pressing process, and ensuring the synchronicity and uniformity of the pressing action.

[0032] The clamping seat 3 is positioned directly above the support seat 6, and its bottom has a second groove corresponding to the first groove, used to press down the upper port of the receiving welding shell. The second groove also adopts an arc-shaped structure that matches the workpiece, ensuring that the upper and lower grooves can accurately clamp the shell and form a symmetrical clamping effect. The two sides of the clamping seat 3 are connected to the slider of the linear guide rail 8 through connecting parts, allowing it to move up and down along the guide rail.

[0033] The power assembly 9 is located above the clamping seat 3 and is used to drive the clamping seat 3 to move up and down. The power assembly 9 drives the clamping seat 3 to press the end of the housing into the first groove to form a shape correction state; by gradually increasing the pressure, the roundness of the port and the misalignment can be corrected and adjusted.

[0034] As an optional implementation, it also includes a support plate 4, which is fixed between the longitudinal beams 2; the power assembly 9 is disposed on the support plate 4.

[0035] The support plate 4 is arranged laterally and fixedly connected to the longitudinal beams 2 located on both sides of the support base 6. Specifically, the mechanical connection can be achieved by bolts, welding, or pins to form a transverse connecting component. The support plate 4 can be set in the middle or upper part of the longitudinal beams 2, and the arrangement can be optimized according to the overall structure of the device and the stroke requirements of the power component 9. The power component 9 is fixed to the upper surface of the support plate 4 by a mounting base or flange plate.

[0036] As an alternative implementation, the power unit 9 is a hydraulic device; the piston rod of the hydraulic device passes through the support plate 4 and is connected to the clamping seat 3.

[0037] The power assembly 9 is a hydraulic device, preferably a vertical hydraulic cylinder. Hydraulic cylinders are characterized by their compact structure, large output force, and stable response, making them suitable for welding and shaping applications requiring high precision and pressure. The hydraulic cylinder is mounted on the upper surface of the support plate 4, with its piston rod passing vertically through the support plate 4 and securely connected to the clamping seat 3 below via a connecting structure (such as a positioning block 12, a connecting flange, or a threaded joint).

[0038] With this structure, when the hydraulic cylinder is working, its piston rod moves vertically up and down under the drive of hydraulic oil, thereby driving the clamping seat 3 to move linearly along the linear guide rail 8, thus realizing the vertical clamping and roundness correction of the end of the housing to be processed.

[0039] As an optional implementation, the power assembly 9 is connected to the clamping seat 3 via the positioning block 12.

[0040] The positioning block 12 is a rigid connecting component. One end of it is fixedly connected to the piston rod end of the hydraulic cylinder by means of a flange, bolts, or pins, and the other end is connected to the clamping seat 3 by bolts or welding. This structure can be integrally formed or a split, replaceable structure, depending on the manufacturing process and usage requirements.

[0041] As an optional implementation, the height adjustment structure 5 includes a first fine-tuning screw, and the support base 6 is connected to the base 1 through the first fine-tuning screw for adjusting the height of the support base 6.

[0042] The first fine-tuning screw is a threaded connection assembly. One end of it can be fixed to the base 1 or a support block on the base 1, and the other end forms a support contact with the lower part of the support seat 6. By rotating the fine-tuning screw, the screw can be driven to move axially, thereby pushing the support seat 6 to slowly rise or fall in the vertical direction, realizing a slight adjustment of the height of the support seat 6.

[0043] As an optional implementation, the left and right adjustment structure 10 includes a horizontal adjustment block and a second fine-tuning screw. The support base 6 is connected to the horizontal adjustment block through the second fine-tuning screw, which is used to adjust the position of the support base 6 in the horizontal direction.

[0044] A leveling block is positioned between the base 1 and the support 6, with one end or side fixedly connected to the base 1 and the other end slidingly connected to the support 6. A second fine-tuning screw is mounted on the leveling block and connected to the support 6 or its connecting part via a threaded connection.

[0045] When the operator rotates the second fine-tuning screw, the axial pushing force of the fine-tuning screw is transmitted to the support 6, causing it to move smoothly left and right in the horizontal direction, thereby achieving a slight translational adjustment of the housing axis.

[0046] As an optional implementation, both the first groove and the second groove are provided with an elastic buffer pad layer.

[0047] The elastic cushioning pad can be made of pressure-resistant rubber sheet, silicone layer, polyurethane soft pad or other flexible materials with certain thickness, elasticity and high temperature resistance. The pad is fixedly connected to the bottom surface of the groove by means of pasting, embedding, snapping or other methods, covering at least part or all of the contact surface of the groove.

[0048] As an optional implementation, the clamping seat 3 is connected to the base plate 13 via the fixing seat 7; the base plate 13 is fixed to the slider of the linear guide rail 8.

[0049] The end of the clamping seat 3 is provided with a base plate. The base plate 13 is fixed to the clamping seat 3 by the fixing seat 7. The base plate 13 is fixed to the slider on the linear guide rail 8 by screws to form a linkage structure.

[0050] As an optional implementation, the linear guide rail 8 has a double guide rail structure, which is arranged in pairs on the inner side of the two longitudinal beams 2.

[0051] To further improve the guiding stability, structural symmetry, and force balance of the upper clamping mechanism when it moves in the vertical direction, the device adopts a double guide rail structure as its main guiding and sliding system.

[0052] The linear guide rails 8 are configured in two sets, and are respectively set in pairs on the inner wall of the longitudinal beams 2 on both sides of the device; each longitudinal beam 2 has a linear guide rail 8 arranged in it, the two guide rails are arranged symmetrically to each other, and each is matched with two linear sliders; the sliders are installed on the lower part of the base plate of the connecting pressure seat 3, and are stably connected to the base plate, thereby driving the entire pressure seat 3 to move vertically and linearly along the guide rails.

[0053] This utility model embodiment also provides a method for welding correction. Figure 3 This is a flowchart of the welding and straightening method provided in this embodiment of the utility model, such as... Figure 3 As shown, the method includes:

[0054] S1. Place the first workpiece to be processed into the first groove of the support base, with the end face extending a predetermined length;

[0055] S2. The clamping seat is moved downwards by the power assembly until it contacts the housing;

[0056] S3. Check the stress on the workpiece to be processed. When the stress is uniform, continue to control the pressing seat to press down through the power assembly until the pressing seat contacts the end face of the support seat.

[0057] S4. Place the first and second workpieces to be processed, which have been shaped, on the support seats in the same column of the base. Adjust the up-down and left-right adjustment structures to make the first and second workpieces to be processed concentric.

[0058] First, activate the power unit to raise the clamping seat to a certain height, allowing the first workpiece to be processed to fit. Stop the upward movement of the power unit and place the rolled-up first workpiece onto the support base, with its end face extending approximately 30mm. Activate the downward movement of the power unit, moving the clamping seat down until it contacts the surface of the first workpiece. Check the force on the contact surface; even force is acceptable. Reactivate the power unit to slowly apply pressure, observing the shape correction of the first workpiece's end face. Once the clamping seat and support base end faces are in contact, stop the power unit and check the diameter of the first workpiece's end face, dividing it into 6 equal sections. A diameter deviation ≤1mm is acceptable. Similarly, correct the shape of the second workpiece using the same method.

[0059] like Figure 2 As shown, after the first workpiece 11 and the second workpiece 14 are shaped using the above method, the first workpiece 11 and the second workpiece 14 are finely adjusted up and down and left and right by adjusting bolts on the up-down and left-right adjustment structures to adjust their concentricity and the uniformity of the assembly gap value in order to meet the welding requirements.

[0060] The above technical solution has the following beneficial effects: by aligning the end faces of the clamping seat and support seat that are adapted to the workpiece to be processed, the roundness and misalignment of the workpiece end are ensured to be consistent; by using the up-down adjustment structure and the left-right adjustment structure to adjust the concentricity of the housing and the assembly gap, the final welding quality is improved; by using the linear guide rail to drive the clamping seat to slide up and down, the precision of the adjustment is improved.

[0061] The above-described specific embodiments of the utility model further illustrate the purpose, technical solution, and beneficial effects of the utility model. It should be understood that the above content is only a specific embodiment of the utility model and is not intended to limit the scope of protection of the utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the utility model should be included within the scope of protection of the utility model.

Claims

1. A butt-weld straightening device, characterized in that include: The base has a support seat on its bearing surface, and the support seat has a first groove adapted to the workpiece to be processed. The longitudinal beams are provided on both sides of the support base, and a linear guide rail is vertically arranged on the inner side of each longitudinal beam; A clamping seat is provided on one side of the top of the support seat, and a second groove corresponding to the first groove is provided. The two sides of the clamping seat are respectively movably connected to the linear guide rails on the corresponding sides. A power assembly, which is connected to the longitudinal beam, and the power shaft of the power assembly is connected to the clamping seat; The support base also includes an up-and-down adjustment structure and a left-and-right adjustment structure.

2. The butt fusion profiling apparatus of claim 1, wherein, It also includes a support plate, which is fixed between the longitudinal beams; The power assembly is mounted on the support plate.

3. The welding alignment device according to claim 2, characterized in that: The power component is a hydraulic device; The piston rod of the hydraulic device passes through the support plate and is connected to the clamping seat.

4. The welding alignment device according to claim 1, characterized in that: The power assembly is connected to the clamping seat via a positioning block.

5. The welding alignment device according to claim 1, characterized in that: The height adjustment structure includes a first fine-tuning screw, and the support base is connected to the base via the first fine-tuning screw for adjusting the height of the support base.

6. The welding alignment device according to claim 1, characterized in that: The left and right adjustment structure includes a horizontal adjustment block and a second fine-tuning screw. The support base is connected to the horizontal adjustment block through the second fine-tuning screw, which is used to adjust the position of the support base in the horizontal direction.

7. The welding alignment device according to claim 1, characterized in that: Both the first and second grooves are provided with elastic buffer pads.

8. The welding alignment device according to claim 1, characterized in that: The clamping seat is connected to the base plate via a fixed seat; The base plate is fixed to the slider of the linear guide rail.

9. The welding alignment device according to claim 1, characterized in that: The linear guide rail has a double guide rail structure, which is set in pairs on the inner side of the longitudinal beams on both sides.

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