Thin-wall elbow pipe end welding seam correcting and opening smashing tool

Abstract

The utility model provides a thin-wall elbow pipe end welding seam correcting and opening smashing tool which comprises a pipe end opening supporting component and a supporting component detachably connected with the pipe end opening supporting component. The pipe end opening supporting component comprises an arc-shaped plate used for making direct contact with the pipe end, the supporting component comprises a screw detachably connected with the arc-shaped plate, a screw cavity is formed in the lower end of the screw, and an internal thread matched with an external thread of the screw is arranged in the screw cavity. The pipe end opening supporting component in contact with the inner wall of the pipe end of the pipe fitting can be replaced so as to be suitable for pipe fittings with different calibers, and the repeated utilization rate is high; only the pipe end opening supporting part is in contact with the inner wall of the pipe end of the pipe fitting, the out-of-circle position of the inner wall of the pipe end of the pipe fitting is corrected in a targeted mode, the pipe end opening supporting tool is easy to place, and the correction speed is high; by adopting the thread structure, more labor is saved in the roundness correction process of the inner wall of the pipe end of the pipe fitting, and the working efficiency is improved; the pipe end opening tool is simple in structure, convenient to use, light and portable.

Description

Technical Field

[0001] This utility model belongs to the field of pipe processing technology, specifically relating to a tooling for correcting and hammering the weld seam at the end of a thin-walled bent pipe. Background Technology

[0002] During the production of pipes and fittings, the ovality of the end face must meet certain tolerances according to national standards. In the processing of thin-walled bends with seams, due to their thin walls, the roundness of the pipe ends deviates during the pressing process, resulting in severe wrinkles and concavities, which affects product quality. Furthermore, the protrusion at the weld seam of the raw material increases the difficulty of end-point calibration. Current technology uses hydraulic presses for calibration, but the hydraulic press moves back and forth slowly, resulting in low calibration efficiency.

[0003] Patent application number 202123085001.5 discloses a convenient pipe rounding tool. When in use, the correction ring is placed at the pipe opening, with the opening of the correction ring at the bottom. A wedge is placed at the opening of the correction ring and tapped to apply pressure to the correction ring in all directions radial to the pipe opening, thereby gradually correcting the roundness of the pipe opening.

[0004] The correction rings used in the aforementioned patents can only be used when they match the pipe diameter. One correction ring corresponds to one pipe diameter, making it inconvenient to reuse them. Placing the entire correction ring at the pipe opening is difficult for pipe fittings with large pipe diameter deviations because the correction ring does not match the pipe diameter. The method of applying pressure to the pipe opening in all directions by tapping the wedge at the opening of the correction ring relies on manual tapping, which is time-consuming, labor-intensive, and inefficient.

[0005] Therefore, the technical problem to be solved by this utility model is as follows: the existing technology uses a hydraulic press for calibration, which has low calibration efficiency; the roundness calibration fixture can only be used for pipe fittings of one diameter, which is not convenient for reuse; placing the entire calibration ring at the pipe opening is not easy for pipe fittings with large pipe opening roundness deviations because the calibration ring does not match the pipe opening roundness; the method of applying pressure to the pipe opening in all directions by striking the wedge at the opening of the calibration ring for calibration relies on manual hammering, which is time-consuming, labor-intensive and inefficient. Utility Model Content

[0006] To solve the above-mentioned technical problems, this utility model provides a tooling for correcting and hammering the weld seam at the end of a thin-walled bent pipe.

[0007] The specific plan is as follows:

[0008] A tooling for correcting and hammering weld seams at the ends of thin-walled bent pipes includes a pipe end support component and a support component detachably connected to the pipe end support component; the pipe end support component includes an arc-shaped plate for direct contact with the pipe end, and the support component includes a screw detachably connected to the arc-shaped plate, the lower end of the screw having a screw cavity, and the screw cavity having an internal thread that mates with the external thread of the screw.

[0009] A connecting plate is fixed to the lower end of the arc-shaped plate, and a ball head cavity is fixed to the lower end of the connecting plate. A ball head is provided at the top of the screw, and the ball head and the top of the screw are inclined to transition. The ball head cavity and the ball head cooperate to detachably connect the pipe end support component and the support component.

[0010] The connecting plate is equipped with a first handle.

[0011] A second handle is provided on the screw.

[0012] A limiting plate is fixed at the lower end of the screw cavity, and an abutment plate for contacting the ground is fixed at the lower end of the limiting plate.

[0013] The beneficial effects of this utility model are as follows:

[0014] This utility model provides a tooling for correcting and hammering weld seams at the ends of thin-walled bent pipes. The pipe end support component that contacts the inner wall of the pipe end is replaceable to accommodate pipes of different diameters, resulting in high reusability. By simply placing the pipe end support component in contact with the inner wall of the pipe end, targeted correction is performed on any non-circular areas of the inner wall. The tooling is easy to insert and the correction speed is fast. The threaded structure makes the process of rounding the inner wall of the pipe end more labor-saving, improving work efficiency. The tooling is simple in structure, easy to use, lightweight, and portable. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the tooling for this utility model.

[0016] Figure 2 This is a schematic diagram of the tooling of this utility model in operation.

[0017] Pipe end support component, arc-shaped plate 11, connecting plate 12, first handle 13, ball head cavity 14.

[0018] Support components: ball head 21, screw 22, second handle 23, screw cavity 24, limiting plate 25, abutment plate 26.

[0019] Pipe Fitting 3 Detailed Implementation

[0020] The technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the implementation of this utility model, not all of it. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0021] like Figure 1 and Figure 2 As shown, this utility model provides a tooling for correcting and hammering the weld seam at the end of a thin-walled bent pipe, including a pipe end support component and a support component detachably connected to the pipe end support component; the pipe end support component includes an arc-shaped plate 11 for direct contact with the pipe end, and the support component includes a screw 22 detachably connected to the arc-shaped plate 11, the lower end of the screw 22 is provided with a screw cavity 24, and the screw cavity 24 is provided with an internal thread that mates with the external thread of the screw 22.

[0022] This utility model provides a tooling for correcting and hammering weld seams at the ends of thin-walled bent pipes. The pipe end support component that contacts the inner wall of the pipe end is replaceable to accommodate pipes of different diameters, resulting in high reusability. By simply placing the pipe end support component in contact with the inner wall of the pipe end, targeted correction is performed on any non-circular areas of the inner wall. The tooling is easy to insert and the correction speed is fast. The threaded structure makes the process of rounding the inner wall of the pipe end more labor-saving, improving work efficiency. The tooling is simple in structure, easy to use, lightweight, and portable.

[0023] like Figure 1 and Figure 2 As shown, a connecting plate 12 is fixed to the lower end of the arc plate 11, and a ball head cavity 14 is fixed to the lower end of the connecting plate 12. A ball head 21 is provided at the top of the screw 22. The ball head 21 and the top of the screw 22 are inclined to transition. The pipe end support component and the support component can be detachably connected by the ball head cavity 14 and the ball head 21 cooperating. The shape of the cavity inside the ball head cavity 14 matches the shape of the ball head 21. After the ball head 21 is inserted into the ball head cavity 14, the ball head cavity 14 can cover the inclined transition part between the ball head 21 and the top of the screw 22, that is, only the screw 22 is exposed. The ball head 21 can rotate at multiple angles in the ball head cavity 14. In actual use, by connecting the pipe end support components of the arc plate 11 with different curvatures to the support component, pipe fittings 3 of different diameters can be corrected.

[0024] like Figure 1 and Figure 2As shown, the connecting plate 12 is further provided with a first handle 13; since the ball head 21 can rotate in the ball head cavity 14, during the calibration process, the operator can hold the first handle 13 to limit the horizontal position of the pipe end support component, preventing the arc plate 11 from shifting in position at the part that contacts the inner wall of the pipe end, thus affecting the calibration effect.

[0025] like Figure 1 and Figure 2 As shown, a second handle 23 is provided on the screw 22; by rotating the second handle 23, the screw 22 is driven to rotate, so that the screw 22 is screwed out or screwed into the screw cavity 24, thereby adjusting the length of the screw 22 extending out of the screw cavity 24.

[0026] like Figure 1 and Figure 2 As shown, a limiting plate 25 is fixed to the lower end of the screw cavity 24, and an abutment plate 26 for contacting the ground is fixed to the lower end of the limiting plate 25. Since the ball head 21 can rotate within the ball head cavity 14, during the calibration process, the limiting plate 25 abuts against the end face of the fitting tube to limit the horizontal movement of the support component and prevent the abutment plate 26 from shifting in position at the point of contact with the ground, thus affecting the calibration effect.

[0027] The specific working process of this utility model is as follows:

[0028] Install the pipe end support component that matches the curvature of the inner wall of the pipe end of the fitting 3 on the support component. When in use, place the pipe end support fixture at the pipe end of the fitting that needs to be corrected, so that the abutment plate 26 abuts against the ground and the limiting plate 25 abuts against the end face of the pipe end of the fitting 3. By rotating the second handle 23, the screw 22 is driven to rotate, so that the screw 22 is screwed out or screwed into the screw cavity 24 to adjust the length of the screw 22 extending out of the screw cavity 24 until the arc plate 11 can contact the point to be corrected on the inner wall of the pipe end.

[0029] The worker places both feet on the limiting plate 25 to limit the position of the supporting component and prevent it from shifting at the point where the abutment plate 26 contacts the ground. One hand holds the first handle 13 to limit the pipe end support component and prevent it from shifting at the contact point between the arc plate 11 and the inner wall of the pipe end of the fitting 3. The other hand holds the second handle 23, and rotating the second handle 23 causes the screw 22 to rotate and extend upwards. Continuing to rotate the second handle 23 causes the screw 22 to extend upwards, and the arc plate 11 abuts against the area to be corrected on the inner wall of the pipe end of the fitting 3, continuously pushing upwards for correction until the inner wall of the pipe end is corrected to the specifications. Then, the worker stops rotating the second handle 23. The second handle 23 is then rotated in the opposite direction until there is a gap between the pipe end support fixture and the inner wall of the pipe end of the fitting 3. The pipe end support fixture is then removed, and the correction is complete. This process is repeated to correct other non-compliant areas on the inner wall of the pipe end of the fitting 3.

[0030] The present invention essentially uses the arc-shaped plate 11 at the top of the pipe end support fixture to abut against the inner wall of the pipe end, and the abutting plate 26 at the bottom of the pipe end support fixture to abut against the ground, and continuously extends the screw 22 to increase the overall length of the pipe end support fixture, and uses the threaded structure to press against the inner wall of the pipe end to achieve correction.

[0031] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. A tooling for correcting and hammering the weld seam at the end of a thin-walled bent pipe, characterized in that: It includes a pipe end support component and a support component that is detachably connected to the pipe end support component; The pipe end support component includes an arc-shaped plate (11) for direct contact with the pipe end. The support component includes a screw (22) detachably connected to the arc plate (11). The lower end of the screw (22) is provided with a screw cavity (24), and the screw cavity (24) is provided with an internal thread that mates with the external thread of the screw (22).

2. The tooling for correcting and hammering the weld seam at the end of a thin-walled bent pipe according to claim 1, characterized in that: The lower end of the arc plate (11) is fixed with a connecting plate (12), and the lower end of the connecting plate (12) is fixed with a ball head cavity (14). The top end of the screw (22) is provided with a ball head (21). The ball head (21) and the top end of the screw (22) are inclined to transition. The ball head cavity (14) and the ball head (21) cooperate to detachably connect the pipe end support component and the support component.

3. The tooling for correcting and hammering the weld seam at the end of a thin-walled bent pipe according to claim 2, characterized in that: The connecting plate (12) is provided with a first handle (13).

4. The tooling for correcting and hammering the weld seam at the end of a thin-walled bent pipe according to claim 1, characterized in that: A second handle (23) is provided on the screw (22).

5. The tooling for correcting and hammering the weld seam at the end of a thin-walled bent pipe according to claim 1, characterized in that: The lower end of the screw cavity (24) is fixed with a limiting plate (25), and the lower end of the limiting plate (25) is fixed with an abutment plate (26) for abutting the ground.

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