Ablation wire elbow tube welding fixture

Abstract

The utility model relates to an ablation line elbow pipe welding tool, from below to top successively including the bottom plate, side frame and top plate installed together in proper order, install the support structure for supporting elbow pipe on the top plate, the top of the jacking module is driven to move up and down the movable plate between the bottom plate and the top plate through the jacking head, install a plurality of jacking columns connected with the bottom of the support frame above on the top of movable plate, install two left and right distribution and the guide clamp column of supporting elbow pipe guide processing on the side guide mounting bracket. The utility model discloses through the left and right adjustable guide clamp column, the rotatable adjustable side guide mounting bracket, makes the tool to be compatible with multiple specifications ablation line elbow pipe, need not to replace the complete tool, has reduced the equipment cost, has shortened the process switching time.

Description

Technical Field

[0001] This utility model relates to the technical field of pipe bending welding, and in particular to a welding fixture for ablation wire pipe bending. Background Technology

[0002] In the production and processing of ablation wires, the welding of the bend is one of the key processes. It requires tooling to provide stable support, precise positioning, and reliable clamping of the bend to ensure that it does not shift or deform during welding, thus guaranteeing the consistency and sealing of the weld. However, existing ablation wire bend welding tooling has the following significant shortcomings: Poor adaptability of the support structure: The support components of the existing tooling are mostly fixed structures, which can only be adapted to bends of a single specification (pipe diameter, bending radius). When facing bends of different sizes of ablation lines, the entire support assembly needs to be replaced, which not only increases the tooling cost, but also prolongs the process changeover time and reduces production efficiency. Inconvenient height adjustment: When welding bent pipes, the support height needs to be adjusted according to the welding position (such as the pipe body joint, the pipe end and the flange connection, etc.). However, existing tooling mostly relies on manually placing shims or replacing support blocks to achieve height adjustment. The adjustment accuracy is low and the operation is cumbersome, making it difficult to quickly position the bent pipe to the optimal welding height.

[0003] In view of the above-mentioned shortcomings, the designer actively researched and innovated in order to create a welding fixture for ablation wire bending pipe, which would have greater industrial application value. Utility Model Content

[0004] To solve the above-mentioned technical problems, the purpose of this utility model is to provide a welding fixture for ablation wire bending pipes.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A welding fixture for ablation wire bends includes, from bottom to top, a base plate, a side frame, and a top plate that are installed together in sequence, with a support structure for supporting the bend installed on the top plate. The number of support structures is at least two and they are arranged side by side along the left and right direction. The support structure includes a support frame, and an arc-shaped support bend is opened on the inner side of the top of the support frame. A lifting module is installed at the bottom of the base plate. The top of the lifting module drives the movable plate located between the base plate and the top plate to move up and down through the lifting head. Several lifting columns connected to the bottom of the support frame above are installed on the top of the movable plate. Side guide mounting brackets are rotatably installed on both the left and right sides near the bottom of the side frame. Two guide pins are installed on the side guide mounting brackets, which are distributed on the left and right and are used to guide the support bend.

[0006] As a further improvement of this utility model, at least one upper clamping structure is installed on one side of the top plate, and at least one lower clamping structure is installed on one side of the side guide mounting bracket.

[0007] As a further improvement of this utility model, both the lower clamping structure and the upper clamping structure are elbow clamps.

[0008] As a further improvement of this utility model, a side column is installed on the support frame on one side of the support bend.

[0009] As a further improvement of this utility model, the two guide pins can be adjusted left and right within the guide waist-shaped holes on the side guide mounting bracket.

[0010] As a further improvement of this utility model, the inner side of the side guide mounting bracket is rotatably mounted on the side frame through a rotating structure. An annular bolt mounting hole is provided on the side frame, so that several adjusting and locking bolts used to mount the side guide mounting bracket on the side frame can be adjusted and locked.

[0011] As a further improvement of this utility model, the lifting module is a pneumatic cylinder or a hydraulic cylinder.

[0012] As a further improvement of this utility model, a guide hole for the lifting column to move up and down is provided on the top plate.

[0013] By means of the above solution, this utility model has at least the following advantages: This invention utilizes adjustable guide pins and rotatable side guide mounting brackets to enable the tooling to be compatible with various specifications of ablation wire bends, eliminating the need to replace the entire tooling set, thus reducing equipment costs and shortening process changeover time.

[0014] This utility model adopts a lifting and adjusting mechanism driven by a pneumatic / hydraulic cylinder, which can achieve rapid and precise adjustment of the support height by controlling the lifting module, replacing the traditional manual method of placing shims, thus improving adjustment efficiency and positioning accuracy; at the same time, each adjustment structure is independent of each other, so there is no interference during adjustment and the operation is highly flexible.

[0015] This utility model tooling adopts a combination of steel plate welding and bolt connection, which has high structural strength and long service life; all core components can be disassembled and replaced, making later maintenance convenient and reducing equipment operation and maintenance costs.

[0016] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the following are the preferred embodiments of this utility model and are described in detail with reference to the accompanying drawings. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of a welding fixture for ablation wire bending pipe according to this utility model; Figure 2 yes Figure 1 7. Structural diagram of the supporting structure; Figure 3 yes Figure 1 A partially enlarged structural diagram of the middle guide mounting bracket.

[0019] The meanings of the labels in the figures are as follows.

[0020] 1. Base plate, 2. Side frame, 3. Top plate, 4. Lifting module, 5. Lifting head, 6. Movable plate, 7. Lifting column, 8. Support structure, 9. Side guide mounting frame, 10. Lower clamping structure, 11. Bend, 12. Upper clamping structure, 13. Support frame, 14. Support bend, 15. Side column, 16. Guide pin, 17. Adjusting locking bolt, 18. Rotating structure. Detailed Implementation

[0021] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0022] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0023] The first embodiment of this utility model: like Figures 1-3As shown, the ablation wire bend welding fixture of this embodiment includes, from bottom to top, a base plate 1, a side frame 2 and a top plate 3 installed together in sequence, and a support structure 8 for supporting the bend 11 is installed on the top plate 3.

[0024] The number of support structures 8 is at least two and they are arranged side by side along the left and right direction. The support structure 8 includes a support frame 13. An arc-shaped support bend 14 is opened on the inner side of the top of the support frame 13. A side column 15 is installed on the support frame 13 on one side of the support bend 14.

[0025] A lifting module 4 (a cylinder or hydraulic cylinder) is installed at the bottom of the base plate 1. The top of the lifting module 4 drives the movable plate 6 located between the base plate 1 and the top plate 3 to move up and down through the lifting head 5. Several lifting columns 7 connected to the bottom of the support frame 13 above are installed on the top of the movable plate 6. Guide holes for the lifting columns 7 to move up and down are opened on the top plate 3.

[0026] Side guide mounting brackets 9 are rotatably installed on both the left and right sides near the bottom of the side frame 2. Two guide pins 16 are installed on the side guide mounting brackets 9, which are distributed on the left and right and guide the support bend 11. The two guide pins 16 can move left and right within the guide waist-shaped holes on the side guide mounting brackets 9.

[0027] The inner side of the side guide mounting bracket 9 is rotatably mounted on the side frame 2 via the rotating structure 18. The side frame 2 has an annular bolt mounting hole, which allows several adjusting and locking bolts 17 used to mount the side guide mounting bracket 9 on the side frame 2 to be movable, adjusted and locked.

[0028] At least one upper clamping structure 12 is installed on one side of the top plate 3, and at least one lower clamping structure 10 is installed on one side of the side guide mounting bracket 9. Both the lower clamping structure 10 and the upper clamping structure 12 are elbow clamps.

[0029] The second embodiment of this utility model: The core structure of this embodiment, from bottom to top, includes a base plate 1, a side frame 2, and a top plate 3. These three components are detachably and securely connected by bolts, facilitating future maintenance and component replacement. The specific design of each structure is as follows: (I) Overall Framework and Supporting Structure Overall frame: The base plate 1 is made of steel plate, and leveling pads (not shown) can be installed at the four corners of the bottom to ensure that the tooling is placed stably; the side frame 2 consists of two symmetrically arranged L-shaped steel plates, which are vertically welded to the left and right sides of the base plate 1, and their height is set according to the common bending pipe welding height; the top plate 3 is a rectangular steel plate covering the top of the side frame 2, which is fixed to the side frame 2 with bolts to form a stable portal frame structure. Support structure 8: At least two support structures 8 (preferably two in this embodiment) are installed side by side on the top of the top plate 3 along the left-right direction to provide multi-point support for different bending sections of the bend 11 and prevent the bend from deforming due to its own weight; each support structure 8 includes a support frame 13 and a side column 15. The support frame 13 is made of hard alloy material, and an arc-shaped support bend 14 is opened on the inner side of the top. The curvature of the support bend 14 is adapted to the outer curvature of common ablation wire bends (support frames 13 with different curvatures can be customized according to requirements). The inner wall of the support bend 14 is covered with a 2mm thick rubber buffer layer (not shown), which not only avoids scratching the outer surface of the bend, but also increases friction and improves support stability. The side column 15 is vertically welded to the top of the support frame 13 on one side of the support bend 14. Its function is to limit the side of the bend 11 and prevent the bend from sliding along the tangential direction of the support bend 14. (ii) Lifting and Adjustment Mechanism To achieve height adjustment of the support structure 8 to accommodate different welding positions, a lifting and adjustment mechanism is installed between the base plate 1 and the top plate 3, specifically including: Lifting module 4: Installed at the center of the bottom of the base plate 1, using a cylinder or hydraulic cylinder (in this embodiment, a cylinder is preferred, model SC80-200), its piston rod extends upward through the base plate 1, and its end is fixedly connected to the lifting head 5 (the lifting head 5 is made of wear-resistant cast iron and is connected to the piston rod by threads). Movable plate 6 and lifting column 7: Movable plate 6 is a rectangular steel plate horizontally set between base plate 1 and top plate 3, in contact with the top of lifting head 5 (the movable plate 6 and lifting head 5 can be fixed with bolts to improve synchronization); several lifting columns 7 are vertically welded to the top of movable plate 6 (the number of lifting columns 7 is the same as the number of support structures 8, and they are located directly below support frame 13 in a one-to-one correspondence), and the top of lifting column 7 is fixedly connected to the bottom of support frame 13 with bolts; at the same time, guide holes (not shown) are opened on top plate 3 corresponding to the position of each lifting column 7. The inner diameter of the guide hole is 2mm larger than the outer diameter of the lifting column 7 to ensure that the lifting column 7 does not deviate when moving up and down, thus improving the adjustment accuracy. Adjustment principle: When the piston rod of the lifting module 4 extends, the lifting head 5 drives the movable plate 6 to move upward, which in turn pushes the support frame 13 to rise along the guide hole through the lifting column 7, thereby raising the height of the support bend 14; conversely, when the piston rod retracts, the support frame 13 descends with the lifting column 7, thereby precisely adjusting the bend 11 to the target height according to the welding requirements. (III) Guiding and positioning mechanism To accommodate bends 11 with different bending angles, side guide mounting brackets 9 are provided on the left and right sides of the side frame 2 near the bottom to guide and position the two ends of the bend 11. The specific structure is as follows: Installation and adjustment of side guide mounting bracket 9: The side guide mounting bracket 9 is made of steel plate, and its inner side is rotatably mounted on the side frame 2 through a rotating structure 18 (the rotating structure 18 uses a bearing and a rotating shaft to cooperate, the rotating shaft is welded to the side frame 2, and the bearing is embedded in the inner side of the side guide mounting bracket 9); at the same time, an annular bolt mounting hole (not shown) is opened on the side frame 2 with the rotating structure 18 as the center. The side guide mounting bracket 9 is connected to the side frame 2 through three adjusting locking bolts 17; when it is necessary to adjust the angle of the side guide mounting bracket 9, loosen the adjusting locking bolts 17, rotate the side guide mounting bracket 9 around the rotating structure 18 to the target angle, and then tighten the adjusting locking bolts 17. The angle adjustment range is 0~90 degrees, which can be adapted to bends with different bending angles. Guide pins 16: Two guide pins 16 are installed on the top of each side guide mounting bracket 9 in the left-right direction. The guide pins 16 are cylindrical structures with a rubber layer covering the outer wall. The top of the side guide mounting bracket 9 is provided with a guide waist-shaped hole (not shown). The bottom of the guide pins 16 is connected to the guide waist-shaped hole by bolts. By loosening the bolts, the guide pins 16 can slide left and right along the guide waist-shaped hole to adjust the distance between the two guide pins 16 (the adjustment range is 50~150mm) to accommodate bends 11 of different diameters. The two guide pins 16 form a V-shaped guide area. The end of the bend 11 is placed between the two guide pins 16 to achieve precise positioning of the bend axis. (iv) Clamping and fixing mechanism To further ensure the stability of the bent pipe 11 during the welding process, an upper clamping structure 12 and a lower clamping structure 10 are provided, both of which use elbow clamps (the elbow clamp model is GH-101A, with a clamping force of not less than 500N, which is convenient to operate and provides stable clamping). Upper clamping structure 12: At least one upper clamping structure 12 (preferably two in this embodiment, symmetrically arranged in the front-back direction) is installed on one side of the top plate 3 (near the welding end of the bend 11). The base of the upper clamping structure 12 is fixed to the top plate 3 by bolts, and an arc-shaped clamping block (adapted to the outer surface of the bend 11) is installed at the end of its clamping arm. When the bend 11 is placed in place, the operating handle of the elbow clamp is pressed down, and the clamping arm drives the arc-shaped clamping block to press the top of the bend 11, thereby achieving top clamping. Lower clamping structure 10: At least one lower clamping structure 10 is installed on the outside of each side guide mounting bracket 9 (the side away from the bend 11) (one is installed on each side guide mounting bracket 9 in this embodiment). The base of the lower clamping structure 10 is welded and fixed to the side guide mounting bracket 9, and an arc-shaped clamping block is also installed at the end of its clamping arm. After adjusting the angle of the side guide mounting bracket 9, press the elbow clamp operating handle inward, and the clamping arm drives the arc-shaped clamping block to press the lower side of the bend 11, forming a coordinated upper and lower clamping with the upper clamping structure 12, thus forming a stable circumferential constraint on the bend 11.

[0030] A brief description of the working process in this embodiment: Pre-treatment of tooling: Place the tooling on the welding workbench and adjust the level of the tooling using the leveling pads at the bottom of the base plate 1 to ensure overall stability; select a support frame 13 with a suitable curvature according to the specifications of the bend 11 to be welded, fix it to the top plate 3 with bolts, and check whether the rubber buffer layer on the inner wall of the support bend hole 14 is intact. Guiding mechanism adjustment: Loosen the adjusting locking bolt 17 on the side frame 2, and rotate the side guide mounting bracket 9 around the rotating structure 18 according to the bending angle of the bend 11, so that the guiding direction of the two side guide mounting brackets 9 is consistent with the axial direction of both ends of the bend 11. Then tighten the adjusting locking bolt 17 to fix the angle of the side guide mounting bracket 9. Loosen the bolts at the bottom of the guide pin 16, slide the two guide pins 16 along the guide waist-shaped hole of the side guide mounting bracket 9 to match the distance between the two pins with the diameter of the bend 11 (50mm) (the distance is adjusted to 55mm to leave space for the compression of the rubber layer), and then tighten the bolts to fix the guide pins 16. Bending pipe placement and support adjustment: The middle bent section of the bend 11 is placed in the support bends 14 of the two support structures 8 in sequence, ensuring that the outer surface of the bend 11 is in close contact with the rubber buffer layer of the inner wall of the support bend 14, and at the same time, the side of the bend 11 contacts the side column 15 to achieve initial positioning. According to the welding position requirements (such as the bend joint needing to be 100mm higher than the surface of the top plate 3), start the lifting module 4 (cylinder), control the piston rod to extend, drive the movable plate 6 to move upward through the lifting head 5, and the lifting column 7 rises along the guide hole of the top plate 3, pushing the support frame 13 and the bend 11 to rise synchronously; when the bend 11 reaches the target height, close the lifting module 4, the cylinder maintains pressure, and locks the support height. Clamping and fixing: Operate the upper clamping structure 12 (elbow clamp) on the top plate 3, press down the operating handle, so that the arc-shaped clamping block at the end of the clamping arm presses against the top of the bent tube 11, ensuring that the bent tube will not move upward; Similarly, operate the lower clamping structure (elbow clamp) on the guide mounting brackets 9 on both sides.

[0031] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A welding fixture for ablation wire bends, comprising, from bottom to top, a base plate (1), a side frame (2) and a top plate (3) installed together in sequence, wherein a support structure (8) for supporting the bend (11) is installed on the top plate (3). Its features are: The number of the support structures (8) is at least two and they are arranged side by side along the left and right direction. The support structure (8) includes a support frame (13) and an arc-shaped support bend (14) is provided on the inner side of the top of the support frame (13). A lifting module (4) is installed at the bottom of the base plate (1). The top of the lifting module (4) is driven by the lifting head (5) to move the movable plate (6) between the base plate (1) and the top plate (3) up and down. Several lifting columns (7) connected to the bottom of the support frame (13) above are installed on the top of the movable plate (6). Side guide mounting brackets (9) are rotatably installed on both the left and right sides near the bottom of the side frame (2). Two guide pins (16) are installed on the side guide mounting brackets (9) that are distributed on the left and right and guide the support bend (11).

2. The ablation wire bend welding fixture as described in claim 1, characterized in that, At least one upper clamping structure (12) is installed on one side of the top plate (3), and at least one lower clamping structure (10) is installed on one side of the side guide mounting bracket (9).

3. The ablation wire bend welding fixture as described in claim 2, characterized in that, Both the lower clamping structure (10) and the upper clamping structure (12) are elbow clamps.

4. The ablation wire bend welding fixture as described in claim 1, characterized in that, A side column (15) is installed on the support frame (13) on one side of the support bend (14).

5. The ablation wire bend welding fixture as described in claim 1, characterized in that, The two guide pins (16) can be adjusted left and right within the guide waist-shaped holes on the side guide mounting bracket (9).

6. The ablation wire bend welding fixture as described in claim 1, characterized in that, The inner side of the side guide mounting bracket (9) is rotatably mounted on the side frame (2) via a rotating structure (18). An annular bolt mounting hole is provided on the side frame (2), so that a number of adjusting locking bolts (17) for mounting the side guide mounting bracket (9) on the side frame (2) can be adjusted and locked.

7. The ablation wire bend welding fixture as described in claim 1, characterized in that, The lifting module (4) is a pneumatic cylinder or a hydraulic cylinder.

8. The ablation wire bend welding fixture as described in claim 1, characterized in that, A guide hole is provided on the top plate (3) for the lifting column (7) to move up and down.

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