Efficient pipe welding seam heat treatment equipment

Abstract

The utility model discloses a kind of high-efficiency pipe welding weld heat treatment equipment, it is related to weld heat treatment equipment technical field, including rotating mechanism and heating mechanism, the end of rotating mechanism is fixedly connected with fixed mechanism, the both sides of heating mechanism are provided with support mechanism. The utility model, by no. 2 electric push rod pushes support plate and pipeline inner wall and sticks, realize the tensioning fixation of pipeline, cooperate the sliding adjustment of sliding block along slide rail, can accurately position weld to heating mechanism, then with the aid of servo motor drive connecting shaft drives pipeline rotation, effectively solve the poor heating uniformity problem caused by lack of rotation function of existing equipment, by rotation, weld is heated uniformly in circumference, avoid large diameter, thick wall or high alloy steel pipe welding pipe appears local overburning or not fully austenitized, while cooling medium can be uniformly acted in rotation process, reduce residual stress concentration, improve pipe mechanical property.

Description

Technical Field

[0001] This utility model relates to the technical field of weld heat treatment equipment, and in particular to a high-efficiency welded pipe weld heat treatment equipment. Background Technology

[0002] High-efficiency welded pipe weld seam heat treatment equipment is a special equipment for heat treatment of the weld seam area during the welded pipe production process. Its core function is to improve the microstructure and mechanical properties of the weld seam and its surrounding area by precisely controlling process parameters such as temperature and time, thereby improving the overall quality and reliability of the welded pipe.

[0003] For example, CN214782043U discloses a weld heat treatment device, including a base plate, a counterweight fixedly installed on the top of the base plate, a column fixedly installed at one end of the counterweight, a crossbar fixedly connected to the upper end of the column, a sliding seat slidably connected to the crossbar, an electric telescopic rod fixedly installed at the bottom of the sliding seat by bolts, a heat treatment bracket fixedly installed at the lower end of the electric telescopic rod by bolts, a fixed plate rotatably connected to both ends of the heat treatment bracket, and an electric heating element fixedly installed inside the fixed plate.

[0004] However, existing seam heat treatment equipment lacks pipe rotation capabilities, resulting in poor heating uniformity, low consistency of microstructure and properties, and insufficient process adaptability. During static heating, the uneven distribution of the magnetic field of the induction coil or the differences in material heat conduction can easily lead to significant temperature deviations in the circumferential direction of the weld. This is especially true when processing large-diameter, thick-walled, or high-alloy steel welded pipes, which can easily lead to local overheating or incomplete austenitization. Furthermore, the inability to achieve uniform medium action through rotation exacerbates residual stress concentration, reduces the mechanical properties of the welded pipe, and makes it difficult to meet the special process requirements of circumferential welds and dissimilar steel welding. Ultimately, this results in large fluctuations in product quality and low yield, limiting the application of the equipment in the production of high-end welded pipes. Utility Model Content

[0005] The purpose of this utility model is to solve the problems existing in the prior art by proposing a high-efficiency welded pipe weld seam heat treatment equipment.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a high-efficiency welded pipe weld heat treatment equipment, including a rotating mechanism and a heating mechanism, a fixing mechanism is fixedly connected to the end of the rotating mechanism, and a support mechanism is provided on both sides of the heating mechanism. The rotating mechanism includes a slide rail, a slider is slidably connected inside the slide rail, and a servo motor is fixedly connected to the upper part of the slider.

[0007] The fixing mechanism includes a connecting shaft, which is fixedly connected to the output end of the servo motor, and a second electric push rod is fixedly connected to the surface of the connecting shaft. A support plate is fixedly connected to the end of the second electric push rod.

[0008] Preferably, a support frame is provided at the bottom of the slide rail, and a first electric push rod is fixedly connected inside the slide rail, with the end of the first electric push rod fixedly connected to the slider.

[0009] Preferably, multiple second-generation electric actuators are fixedly connected to the surface of the connecting shaft, and the multiple second-generation electric actuators are arranged in a circular array on the surface of the connecting shaft.

[0010] Preferably, the support mechanism includes a fixed frame, a sleeve is fixedly connected to the upper part of the fixed frame, a support rod is threadedly connected inside the sleeve, and a mounting bracket is fixedly connected to the upper part of the support rod.

[0011] Preferably, the mounting bracket has rollers rotatably connected inside.

[0012] Preferably, the mounting frame is V-shaped, and multiple rollers are rotatably connected inside the mounting frame, with the rollers evenly distributed inside the mounting frame.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] 1. In this utility model, the second electric push rod pushes the support plate to fit against the inner wall of the pipe, thereby achieving the tensioning and fixing of the pipe. With the sliding adjustment of the slider along the slide rail, the weld can be accurately positioned into the heating mechanism. Then, the connecting shaft is driven by the servo motor to rotate the pipe, which effectively solves the problem of poor heating uniformity caused by the lack of rotation function in existing equipment. The rotation ensures that the weld is heated evenly in the circumference, avoiding local overheating or incomplete austenitization of large-diameter, thick-walled or high-alloy steel welded pipes. At the same time, the cooling medium can act evenly during the rotation, reducing residual stress concentration and improving the mechanical properties of the welded pipe. Moreover, the ring array of the second electric push rod can be adapted to pipes of different specifications, enhancing process adaptability and achieving high precision, high efficiency and high yield of weld heat treatment in high-end welded pipe production.

[0015] 2. In this utility model, the extension and retraction of the No. 1 electric push rod drives the slider to slide along the slide rail, facilitating the movement of the pipeline. The rollers support the pipeline, improving its stability during rotation. According to the size of the pipeline, the height of the mounting bracket and rollers can be adjusted by rotating the support rod along the sleeve, thereby supporting pipelines of different sizes. By adding the No. 1 electric push rod to drive the slider to slide along the slide rail, the axial position of the pipeline can be precisely adjusted. Combined with the evenly distributed rollers in the V-shaped mounting bracket supporting the pipeline, the radial runout of the pipeline during rotation is reduced, significantly improving stability. Attached Figure Description

[0016] Figure 1 This utility model presents a first three-dimensional structural schematic diagram of a high-efficiency welded pipe weld seam heat treatment equipment;

[0017] Figure 2This utility model provides a second three-dimensional structural diagram of a high-efficiency welded pipe weld heat treatment equipment;

[0018] Figure 3 This utility model provides a side view of the structure of a high-efficiency welded pipe weld heat treatment equipment;

[0019] Figure 4 This utility model presents a three-dimensional structural diagram of the support mechanism in a high-efficiency welded pipe weld heat treatment equipment.

[0020] Legend: 1. Rotating mechanism; 11. Slide rail; 12. Slider; 13. Electric push rod No. 1; 14. Servo motor; 2. Fixing mechanism; 21. Connecting shaft; 22. Electric push rod No. 2; 23. Support plate; 3. Supporting mechanism; 31. Fixing frame; 32. Sleeve; 33. Support rod; 34. Mounting frame; 35. Roller; 4. Heating mechanism. Detailed Implementation

[0021] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0023] Example 1: As Figures 1-4 As shown, this utility model provides a high-efficiency welded pipe weld heat treatment equipment, including a rotating mechanism 1 and a heating mechanism 4. The end of the rotating mechanism 1 is fixedly connected to a fixing mechanism 2, and the heating mechanism 4 is provided with a support mechanism 3 on both sides. The rotating mechanism 1 includes a slide rail 11, and a slider 12 is slidably connected inside the slide rail 11. A servo motor 14 is fixedly connected to the upper part of the slider 12.

[0024] The fixing mechanism 2 includes a connecting shaft 21, which is fixedly connected to the output end of the servo motor 14. A second electric push rod 22 is fixedly connected to the surface of the connecting shaft 21. A support plate 23 is fixedly connected to the end of the second electric push rod 22. Multiple second electric push rods 22 are fixedly connected to the surface of the connecting shaft 21, and the multiple second electric push rods 22 are arranged in a ring array on the surface of the connecting shaft 21.

[0025] The specific setup and function of this embodiment are described below. The pipe is placed on the upper part of the support mechanism 3 and passes through the inside of the heating mechanism 4. Then, the second electric push rod 22 is inserted from one end of the pipe. The second electric push rod 22 pushes the support plate 23 to fit against the inner wall of the pipe, and the pipe is tensioned and fixed. The position of the pipe is moved by the slider 12 sliding along the slide rail 11. The weld seam on the surface of the pipe is placed inside the heating mechanism 4. The servo motor 14 drives the connecting shaft 21 to rotate, thereby driving the pipe to rotate inside the heating mechanism 4.

[0026] The second electric push rod 22 pushes the support plate 23 to fit against the inner wall of the pipe, achieving tension and fixation of the pipe. With the slider 12 sliding along the slide rail 11, the weld can be accurately positioned into the heating mechanism 4. Then, the servo motor 14 drives the connecting shaft 21 to rotate the pipe, effectively solving the problem of poor heating uniformity caused by the lack of rotation function in existing equipment. The rotation ensures that the weld is heated evenly in the circumference, avoiding local overheating or incomplete austenitization of large-diameter, thick-walled or high-alloy steel welded pipes. At the same time, the cooling medium can act evenly during the rotation, reducing residual stress concentration and improving the mechanical properties of the welded pipe. Moreover, the ring array of the second electric push rod 22 can be adapted to pipes of different specifications, enhancing process adaptability and achieving high precision, high efficiency and high yield of weld heat treatment in high-end welded pipe production.

[0027] The fixing mechanism 2 uses a ring array of two electric push rods 22 to push the support plate 23 to tension the inner wall of the pipe, ensuring stable clamping and synchronous rotation of welded pipes with different inner diameters, avoiding surface damage caused by traditional clamping methods. The support mechanism 3 works in conjunction with the rotation process to reduce pipe swaying and improve heating stability.

[0028] Example 2: Figures 1-4 As shown, a support frame is provided at the bottom of the slide rail 11, and an electric push rod 13 is fixedly connected inside the slide rail 11. The end of the electric push rod 13 is fixedly connected to the slider 12. The support mechanism 3 includes a fixed frame 31, a sleeve 32 is fixedly connected to the upper part of the fixed frame 31, a support rod 33 is threaded inside the sleeve 32, a mounting frame 34 is fixedly connected to the upper part of the support rod 33, and rollers 35 are rotatably connected inside the mounting frame 34. The mounting frame 34 is V-shaped, and multiple rollers 35 are rotatably connected inside the mounting frame 34. The multiple rollers 35 are evenly distributed inside the mounting frame 34.

[0029] The overall effect of this embodiment is that the extension and retraction of the first electric push rod 13 drives the slider 12 to slide along the slide rail 11, which facilitates the movement of the pipe. The roller 35 supports the pipe, improving the stability of the pipe during rotation. According to the size of the pipe, the support rod 33 is rotated to move up and down along the sleeve 32, thereby adjusting the height of the mounting bracket 34 and the roller 35, and thus supporting pipes of different sizes.

[0030] By adding an electric push rod 13 to drive the slider 12 to slide along the slide rail 11, the axial position of the pipe can be precisely adjusted. In conjunction with the rollers 35 evenly distributed inside the V-shaped mounting bracket 34 to support the pipe, the radial runout during pipe rotation is reduced, significantly improving stability. The threaded adjustment mechanism of the sleeve 32 and the support rod 33 can quickly adapt to welded pipes of different diameters, greatly improving the equipment's versatility and changeover efficiency. It effectively solves the shaking problem during the rotation of large-diameter welded pipes, providing key support for the large-scale and flexible production of high-end welded pipes.

[0031] The method of use and working principle of this device: Place the pipe on the upper part of the support mechanism 3 and pass it out from the inside of the heating mechanism 4. Then, insert the second electric push rod 22 from one end of the pipe. Push the support plate 23 to fit against the inner wall of the pipe through the second electric push rod 22 to tension and fix the pipe. Move the position of the pipe by sliding the slider 12 along the slide rail 11. Place the weld seam on the surface of the pipe into the inside of the heating mechanism 4. Drive the connecting shaft 21 to rotate through the servo motor 14, thereby driving the pipe to rotate inside the heating mechanism 4.

[0032] The extension and retraction of the first electric push rod 13 drives the slider 12 to slide along the slide rail 11, which facilitates the movement of the pipeline. The roller 35 supports the pipeline, improving the stability of the pipeline during rotation. According to the size of the pipeline, the support rod 33 is rotated to move up and down along the sleeve 32, thereby adjusting the height of the mounting bracket 34 and the roller 35, and thus supporting pipelines of different sizes.

[0033] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.

Claims

1. A high-efficiency heat treatment equipment for welded pipe seams, characterized in that: It includes a rotating mechanism (1) and a heating mechanism (4). The end of the rotating mechanism (1) is fixedly connected to a fixing mechanism (2). Both sides of the heating mechanism (4) are provided with support mechanisms (3). The rotating mechanism (1) includes a slide rail (11). A slider (12) is slidably connected inside the slide rail (11). A servo motor (14) is fixedly connected to the upper part of the slider (12). The fixing mechanism (2) includes a connecting shaft (21), which is fixedly connected to the output end of the servo motor (14), and a second electric push rod (22) is fixedly connected to the surface of the connecting shaft (21), and a support plate (23) is fixedly connected to the end of the second electric push rod (22).

2. The high-efficiency welded pipe weld heat treatment equipment according to claim 1, characterized in that: The slide rail (11) is provided with a support frame at the bottom, and an electric push rod (13) is fixedly connected inside the slide rail (11). The end of the electric push rod (13) is fixedly connected to the slider (12).

3. The high-efficiency welded pipe weld heat treatment equipment according to claim 1, characterized in that: Multiple second-generation electric push rods (22) are fixedly connected to the surface of the connecting shaft (21), and the multiple second-generation electric push rods (22) are arranged in a ring array on the surface of the connecting shaft (21).

4. The high-efficiency welded pipe weld heat treatment equipment according to claim 1, characterized in that: The support mechanism (3) includes a fixed frame (31), a sleeve (32) is fixedly connected to the upper part of the fixed frame (31), a support rod (33) is threadedly connected inside the sleeve (32), and an mounting bracket (34) is fixedly connected to the upper part of the support rod (33).

5. The high-efficiency welded pipe weld heat treatment equipment according to claim 4, characterized in that: The mounting bracket (34) is rotatably connected to a roller (35).

6. The high-efficiency welded pipe weld heat treatment equipment according to claim 5, characterized in that: The mounting bracket (34) is V-shaped, and multiple rollers (35) are rotatably connected inside the mounting bracket (34). The multiple rollers (35) are evenly distributed inside the mounting bracket (34).

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