Weld joint guide mechanism of high-frequency longitudinal welded pipe mill

Abstract

The utility model discloses a welding seam guide mechanism of a high-frequency straight seam pipe welder, which comprises a support base, a shaping component and a welding component are mounted on the surface of the upper end of the support base, a horizontal guide component and a vertical guide component are arranged in the middle of the shaping component and the welding component, and a pipe is arranged in the shaping component; the horizontal guide assembly comprises two horizontal guide blocks which are symmetrically distributed; the vertical guide assembly comprises a welding seam clamping block and a vertical guide block, and the welding seam clamping block and the vertical guide block are located on the same vertical plane; under the joint cooperation of the horizontal guide block, the welding seam clamping block and the vertical guide block, the pipe can be limited in multiple directions, the position of the pipe can be comprehensively and accurately controlled, the situation that the pipe deviates, shakes and the like in the welding process is avoided, and the welding seam of the pipe is guided.

Description

Technical Field

[0001] This utility model relates to the technical field of high-frequency straight seam welded pipe equipment, and in particular to a weld seam guiding mechanism for a high-frequency straight seam welded pipe machine. Background Technology

[0002] The high-frequency straight seam welded pipe machine rolls strip metal sheets into round or square pipe blanks through a forming machine. Then, by utilizing the skin effect and proximity effect of high-frequency current, the edges of the pipe blank are rapidly heated to the welding temperature. Under the action of the extrusion rollers, the edges of the pipe blank are extruded and fused to form a continuous weld seam, thereby obtaining a welded steel pipe.

[0003] In the production process of high-frequency straight seam welded pipes, the weld seam guiding mechanism plays a crucial role. However, some guiding mechanisms can only limit the pipe from a single direction or a limited number of directions, making it difficult to fully and accurately control the position of the pipe. This results in poor stability, and during the welding process, the pipe is prone to deviation and shaking, leading to problems such as left-right swaying and skewness of the weld, which seriously affects the quality of the steel pipe weld.

[0004] Therefore, we provide a weld seam guiding mechanism for a high-frequency straight seam welded pipe machine. Utility Model Content

[0005] The purpose of this utility model is to address the aforementioned technical problems by providing a weld seam guiding mechanism for a high-frequency straight seam welded pipe machine, thereby achieving the effect of guiding the weld seam of the high-frequency straight seam welded pipe machine.

[0006] In view of this, the present invention provides a weld seam guiding mechanism for a high-frequency straight seam welded pipe machine, including a support base, a shaping component and a welding component are installed on the upper surface of the support base, a horizontal guiding component and a vertical guiding component are provided in the middle of the shaping component and the welding component, and a pipe is provided inside the shaping component;

[0007] The horizontal guide component includes two symmetrically distributed horizontal guide blocks;

[0008] The vertical guide assembly includes a weld seam clamping block and a vertical guide block, which are located on the same vertical plane.

[0009] Preferably, the horizontal guide assembly includes support columns symmetrically mounted on the upper surface of the support base, one of the support columns has a first motor mounted on its outer surface, the output end of the first motor has a positive and negative screw mounted on it, the end of the positive and negative screw away from the first motor is rotatably connected to the other support column, and the outer surface of the positive and negative screw has two threaded blocks evenly arranged, the two threaded blocks having opposite thread directions.

[0010] Preferably, the outer surfaces of the positive and negative screws are threadedly connected to two screw cylinders, which are symmetrically distributed. A support rod is connected to the outer surface of each screw cylinder, and a horizontal guide block is installed at the upper end of the support rod. The two horizontal guide blocks are simultaneously in contact with the outer surface of the pipe on their adjacent sides.

[0011] Preferably, the vertical guide assembly includes a support limiting post mounted on the upper surface of the support base, a second motor is inserted into the outer surface of the support limiting post, a cam is mounted on the output end of the second motor, and two protrusions are symmetrically mounted on the outer surface of the cam.

[0012] Preferably, the two protrusions on the cam are rotatably connected to connecting rods, and the end of the connecting rod away from the cam is rotatably connected to a support block, and the two support blocks are symmetrically and vertically distributed.

[0013] Preferably, the support block is slidably connected to the support limiting post, the lower end of the upper support block is equipped with the weld seam clamping block, the weld seam clamping block and the heating section of the welding assembly are located on the same horizontal plane, the width of the weld seam clamping block is the same as the width of the heating end of the welding assembly, and both the weld seam clamping block and the heating end of the welding assembly are inserted into the weld seam of the pipe. Rotating rollers are rotatably connected to opposite sides of the weld seam clamping block, the outer surface of the rotating rollers is in contact with the inner wall of the weld seam, and the upper surface of the lower support block is equipped with the vertical guide block, which is in contact with the outer surface of the pipe.

[0014] Preferably, the outer surface of the support limiting post is symmetrically provided with two sliding holes, the support block is inserted into the sliding holes, and the inner walls of the sliding holes on both sides are provided with limiting grooves. A slider is slidably arranged inside the limiting grooves, and the slider is fixedly connected to the outer surface of the support block.

[0015] Preferably, a limiting telescopic rod is fixedly connected to one side of the horizontal guide block, and the end of the limiting telescopic rod away from the horizontal guide block is fixedly connected to the outer surface of the support column.

[0016] Compared with the prior art, this utility model provides a weld seam guiding mechanism for a high-frequency straight seam welded pipe machine, which has the following beneficial effects:

[0017] 1. This utility model, with the combined action of horizontal guide blocks, weld seam clamping blocks and vertical guide blocks, can limit the position of the pipe from multiple directions, and can comprehensively and accurately control the position of the pipe, ensuring that the pipe will not deviate or shake during the welding process, and plays a guiding role for the weld seam of the pipe.

[0018] 2. This utility model uses a weld seam clamping block to create a limiting effect within the weld seam of the pipe, preventing the pipe from shifting at an angle during movement and causing misalignment between the weld seam and the heating end of the welding assembly, thus guiding the weld seam of the pipe.

[0019] 3. This utility model uses vertical guide blocks and horizontal guide blocks to limit the pipe material from three directions (left, right, and bottom), thereby further improving the guiding effect on the pipe weld.

[0020] 4. Under the action of the positive and negative screws, screw barrel, cam, connecting rod and support block, the horizontal guide block can be moved horizontally, and the weld seam clamping block and vertical guide block can be moved vertically, so that the horizontal guide block, weld seam clamping block and vertical guide block can adapt to pipes of different specifications and improve the applicability of the device.

[0021] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model has a simple structure and is easy to operate. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of a weld seam guiding mechanism for a high-frequency straight seam welded pipe machine proposed in this utility model;

[0023] Figure 2 This is a schematic diagram showing the relative positions of the components of a weld seam guiding mechanism for a high-frequency straight seam welded pipe machine proposed in this utility model.

[0024] Figure 3 This is a schematic diagram of the horizontal guide component structure of the weld seam guide mechanism of a high-frequency straight seam welded pipe machine proposed in this utility model;

[0025] Figure 4 This is a schematic diagram of the vertical guide component structure of a high-frequency straight seam welded pipe machine weld seam guide mechanism proposed in this utility model.

[0026] In the diagram: 1. Support base; 2. Shaping component; 3. Welding component; 4. Horizontal guide component; 401. Support column; 402. First motor; 403. Positive and negative screws; 404. Screw barrel; 405. Horizontal guide block; 407. Limiting telescopic rod; 5. Vertical guide component; 501. Support limiting column; 502. Second motor; 503. Cam; 504. Connecting rod; 505. Support block; 506. Weld seam clamping block; 507. Vertical guide block; 6. Pipe. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0028] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0029] Example: A weld seam guiding mechanism for a high-frequency straight seam welded pipe machine, such as... Figures 1-4 As shown, it includes a support base 1, a shaping component 2 and a welding component 3 are installed on the upper surface of the support base 1, a horizontal guide component 4 and a vertical guide component 5 are provided in the middle of the shaping component 2 and the welding component 3, and a tube 6 is provided inside the shaping component 2.

[0030] The horizontal guide component 4 includes two symmetrically distributed horizontal guide blocks 405;

[0031] The vertical guide assembly 5 includes a weld seam snap-fit ​​block 506 and a vertical guide block 507, which are located on the same vertical plane.

[0032] The horizontal guide assembly 4 includes support columns 401 symmetrically mounted on the upper surface of the support base 1. A first motor 402 is mounted on the outer surface of one of the support columns 401. A positive and negative screw 403 is mounted on the output end of the first motor 402. The end of the positive and negative screw 403 away from the first motor 402 is rotatably connected to the other support column 401. Two threaded blocks are evenly arranged on the outer surface of the positive and negative screw 403, and the threads of the two threaded blocks are opposite in direction.

[0033] Two screw cylinders 404 are threadedly connected to the outer surface of the positive and negative screws 403. The two screw cylinders 404 are symmetrically distributed. A support rod is connected to the outer surface of the screw cylinder 404. A horizontal guide block 405 is installed at the upper end of the support rod. The two horizontal guide blocks 405 are simultaneously in contact with the outer surface of the pipe 6 on their adjacent sides.

[0034] The vertical guide assembly 5 includes a support limiting post 501 installed on the upper surface of the support base 1. A second motor 502 is inserted into the outer surface of the support limiting post 501. A cam 503 is installed at the output end of the second motor 502. Two protrusions are symmetrically installed on the outer surface of the cam 503.

[0035] Two protrusions on the cam 503 are rotatably connected to connecting rods 504. The end of the connecting rod 504 away from the cam 503 is rotatably connected to a support block 505. The two support blocks 505 are vertically symmetrically distributed.

[0036] The support block 505 is slidably connected to the support limiting post 501. A weld seam clamping block 506 is installed at the lower end of the upper support block 505. The weld seam clamping block 506 and the heating end of the welding assembly 3 are located on the same horizontal plane. The width of the weld seam clamping block 506 is the same as the width of the heating end of the welding assembly 3. Both the weld seam clamping block 506 and the heating end of the welding assembly 3 are inserted into the weld seam of the pipe 6. Rotating rollers are rotatably connected to both sides of the weld seam clamping block 506. The outer surface of the rotating rollers is in contact with the inner wall of the weld seam. A vertical guide block 507 is installed on the upper surface of the lower support block 505. The vertical guide block 507 is in contact with the outer surface of the pipe 6.

[0037] After the tube 6 is shaped and extruded by the forming component 2, the tube 6 gradually takes shape. At this time, a weld seam will be left on the tube 6 after it has been shaped by the forming component 2. When the front end of the tube 6 gradually enters the horizontal guide component 4 and the vertical guide component 5, the first motor 402 is activated, driving the positive and negative screws 403 to rotate. Based on the threaded connection between the screw barrel 404 and the positive and negative screws 403, the screw barrel 404 and the horizontal guide block 405 move inward simultaneously until one end of the horizontal guide block 405 is in contact with the outer surface of the tube 6, thus completing the horizontal positioning and guiding of the tube 6. Then, the second motor 502 is activated, driving the cam 503 to rotate. As the protrusions gradually move from a vertical distribution to a horizontal distribution, the two support blocks 505 are pulled inward based on the fixed length of the connecting rod 504. When the vertical guide block 507 is in contact with the outer surface of the pipe 6, the weld seam clamping block 506 enters the weld seam of the pipe 6. Finally, the pipe 6 continues to advance, and after heating and welding by the welding assembly 3, the pipe 6 is formed. Under the action of the horizontal guide block 405, the weld seam clamping block 506, and the vertical guide block 507, the weld seam clamping block 506 is used to clamp the pipe. The weld seam of pipe 6 forms a limiting function to prevent angular displacement of pipe 6 during movement, thus avoiding misalignment between the weld seam of pipe 6 and the heating end of welding assembly 3. It also guides the weld seam of pipe 6. The vertical guide block 507 and horizontal guide block 405 limit the movement of pipe 6 from three directions (left, right, and bottom), further enhancing the guiding effect on the weld seam. With the combined action of the horizontal guide block 405, weld seam clamping block 506, and vertical guide block 507, pipe 6 can be limited from multiple directions, enabling comprehensive and precise control of the pipe seam. The position of the material 6 ensures that the pipe 6 will not shift or shake during the welding process, and guides the weld of the pipe 6. Furthermore, under the action of the positive and negative screws 403, screw barrel 404, cam 503, connecting rod 504 and support block 505, the horizontal guide block 405 can be moved horizontally, and the weld seam clamping block 506 and vertical guide block 507 can be moved vertically. This allows the horizontal guide block 405, weld seam clamping block 506 and vertical guide block 507 to adapt to pipes of different specifications, thus improving the applicability of the device.

[0038] like Figures 1-4 As shown, two sliding holes are symmetrically opened through the outer surface of the support limiting post 501. The support block 505 is inserted into the sliding hole. Limiting grooves are opened on the inner walls of the sliding holes on both sides. A slider is slidably installed inside the limiting groove. The slider is fixedly connected to the outer surface of the support block 505.

[0039] Under the limiting action of the slider and the limiting groove, the movement angle and position of the support block 505 are limited, so that the weld seam clamping block 506 and the vertical guide block 507 are always in the same vertical plane, avoiding the problem that the support block 505 rotates with the cam 503 at the same time. At the same time, it ensures that the support block 505 will not be misaligned during vertical movement, and ensures the stability of the vertical guide assembly 5 during operation.

[0040] like Figures 1-4 As shown, a limiting telescopic rod 407 is fixedly connected to one side of the horizontal guide block 405, and the end of the limiting telescopic rod 407 away from the horizontal guide block 405 is fixedly connected to the outer surface of the support column 401.

[0041] When the screw barrel 404 moves horizontally, the telescopic end of the limiting telescopic rod 407 extends and retracts simultaneously. Under the limiting action of the limiting telescopic rod 407, the screw barrel 404 is prevented from rotating simultaneously with the positive and negative screws 403, thus ensuring the stability of the screw barrel 404 during movement.

[0042] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A high-frequency longitudinal seam pipe mill welding seam guide mechanism comprising a support base (1), characterized in that, The upper surface of the support base (1) is equipped with a shaping component (2) and a welding component (3). A horizontal guide component (4) and a vertical guide component (5) are provided in the middle of the shaping component (2) and the welding component (3). A pipe (6) is provided inside the shaping component (2). The horizontal guide component (4) includes two symmetrically distributed horizontal guide blocks (405); The vertical guide assembly (5) includes a weld snap block (506) and a vertical guide block (507), which are located on the same vertical plane.

2. The weld seam guiding mechanism for a high-frequency straight seam welded pipe machine according to claim 1, characterized in that, The horizontal guide assembly (4) includes support columns (401) symmetrically installed on the upper surface of the support base (1). A first motor (402) is installed on the outer surface of one of the support columns (401). A positive and negative screw (403) is installed at the output end of the first motor (402). The end of the positive and negative screw (403) away from the first motor (402) is rotatably connected to the other support column (401). Two threaded blocks are evenly arranged on the outer surface of the positive and negative screw (403), and the thread directions of the two threaded blocks are opposite.

3. The weld seam guiding mechanism for a high-frequency straight seam welded pipe machine according to claim 2, characterized in that, The outer surface of the positive and negative screw (403) is threadedly connected to two screw cylinders (404). The two screw cylinders (404) are symmetrically distributed. The outer surface of the screw cylinders (404) is connected to a support rod. The upper end of the support rod is equipped with the horizontal guide block (405). The two horizontal guide blocks (405) are simultaneously attached to the outer surface of the pipe (6) on their adjacent sides.

4. The weld seam guiding mechanism for a high-frequency straight seam welded pipe machine according to claim 1, characterized in that, The vertical guide assembly (5) includes a support limiting post (501) installed on the upper surface of the support base (1). A second motor (502) is inserted into the outer surface of the support limiting post (501). A cam (503) is installed at the output end of the second motor (502). Two protrusions are symmetrically installed on the outer surface of the cam (503).

5. The weld seam guiding mechanism for a high-frequency straight seam welded pipe machine according to claim 4, characterized in that, The two protrusions on the cam (503) are rotatably connected to the connecting rod (504), and the end of the connecting rod (504) away from the cam (503) is rotatably connected to the support block (505). The two support blocks (505) are vertically symmetrically distributed.

6. The weld seam guiding mechanism for a high-frequency straight seam welded pipe machine according to claim 5, characterized in that, The support block (505) is slidably connected to the support limiting post (501). The lower end of the upper support block (505) is equipped with the weld seam clamping block (506). The weld seam clamping block (506) and the heating section of the welding assembly (3) are located on the same horizontal plane. The width of the weld seam clamping block (506) is consistent with the width of the heating end of the welding assembly (3). The weld seam clamping block (506) and the heating end of the welding assembly (3) are both inserted into the weld seam of the pipe (6). Rotating rollers are rotatably connected to both sides of the weld seam clamping block (506). The outer surface of the rotating rollers is in contact with the inner wall of the weld seam. The upper surface of the lower support block (505) is equipped with the vertical guide block (507). The vertical guide block (507) is in contact with the outer surface of the pipe (6).

7. The weld seam guiding mechanism for a high-frequency straight seam welded pipe machine according to claim 6, characterized in that, The outer surface of the support limiting post (501) is symmetrically provided with two sliding holes. The support block (505) is inserted into the sliding holes. The inner walls of the sliding holes on both sides are provided with limiting grooves. A slider is slidably provided inside the limiting grooves. The slider is fixedly connected to the outer surface of the support block (505).

8. The weld seam guiding mechanism for a high-frequency straight seam welded pipe machine according to claim 3, characterized in that, A limiting telescopic rod (407) is fixedly connected to one side of the horizontal guide block (405), and the end of the limiting telescopic rod (407) away from the horizontal guide block (405) is fixedly connected to the outer surface of the support column (401).

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