High-frequency welded pipe forming extrusion equipment

By introducing first and second limiting mechanisms and a distance adjustment mechanism into the high-frequency welded pipe forming extrusion equipment, the problem of difficulty in aligning the lower pressure roller with the interface is solved, achieving precise positioning and stable forming of high-frequency welded pipe, and improving the quality of finished products.

CN224238080UActive Publication Date: 2026-05-15JILIN HUAQI PIPE MAKING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JILIN HUAQI PIPE MAKING CO LTD
Filing Date
2025-04-17
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

In existing high-frequency welded pipe forming extrusion equipment, the extrusion pressure of the lower roller is difficult to precisely align with the interface, causing the high-frequency welded pipe to easily shift or deform, affecting the quality of the finished product.

Method used

The high-frequency welded pipe is limited from both sides by a first limiting mechanism and a second limiting mechanism, and the position of the limiting clamp is adjusted by an adjusting mechanism, while the follow-up mechanism performs dynamic limiting to ensure precise alignment and stability during the extrusion process.

Benefits of technology

It improves the finished product quality of high-frequency welded pipes, avoids deformation, enhances the limiting effect, and improves the accuracy and stability of extrusion molding.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of high-frequency welded pipe machining, in particular to high-frequency welded pipe forming extrusion equipment which comprises a workbench, a first limiting mechanism, a second limiting mechanism, a distance adjusting mechanism and a follow-up mechanism. A mounting bracket is arranged at the top of the worktable; the first limiting mechanism is fixedly arranged on the workbench and used for limiting the end of the high-frequency welded pipe. The second limiting mechanism is movably arranged on the workbench, the second limiting mechanism and the first limiting mechanism are the same in structure, and the second limiting mechanism and the first limiting mechanism are matched to limit the high-frequency welded pipe; the distance adjusting mechanism is arranged on the workbench, and one end of the distance adjusting mechanism is connected with the second limiting mechanism; the follow-up mechanism is arranged above the workbench and used for extruding the high-frequency welded pipe in a follow-up mode. The first limiting mechanism, the second limiting mechanism and the adjusting mechanism are arranged in a matched mode, the limiting effect is guaranteed, deformation of the high-frequency welded pipe is avoided, and the finished product quality of the high-frequency welded pipe is effectively improved.
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Description

Technical Field

[0001] This utility model relates to the field of high-frequency welded pipe processing technology, specifically to a high-frequency welded pipe forming and extrusion equipment. Background Technology

[0002] A high-frequency welded pipe production line is a steel pipe manufacturing equipment mainly composed of an uncoiler, leveler, shearing and welding machine, storage looper, forming and sizing machine, computer-controlled flying saw, hydraulic testing machine, blanking roller conveyor, flaw detection equipment, and packaging machine. The high-frequency welded pipe equipment feeds steel strips of a certain specification into the machine, where forming rollers coil the steel strips into pipe blanks. These blanks are then welded under the pressure of extrusion rollers by a high-frequency welding machine. After cooling, sizing, and straightening, the resulting steel pipes are produced to the required specifications.

[0003] Chinese Patent No. CN217452555U discloses a high-frequency welded pipe forming and extrusion equipment. The high-frequency welded pipe forming and extrusion equipment includes a worktable with multiple lifting columns mounted at its bottom. The worktable's working surface is V-shaped, and two extrusion rollers and linear guides are symmetrically mounted on the V-shaped working surface. A movable end plate is slidably mounted on the two linear guides. A fixed end plate is fixedly mounted on the upper surface of the worktable, located at one end of the two linear guides. A drive assembly for moving the movable end plate is mounted on the movable end plate. Two sets of end clamp assemblies are provided, with the two sets of end clamp assemblies respectively mounted on the movable end plate and the fixed end plate. An extrusion follower mechanism for extrusion forming is mounted on the side plate of the worktable, and the extrusion follower mechanism includes a lead screw, a servo motor, a sliding seat, a connecting bracket, a hydraulic cylinder, a V-shaped pressure plate, and a lower pressure roller. This utility model has the advantages of convenient extrusion forming and easy welding.

[0004] However, the above technical solution has the following shortcomings: the lower pressure roller and the extrusion roller extrude the high-frequency welded pipe into shape. The lower pressure roller can only extrude downwards. It is difficult to align the joints when extruding from one side. If the extrusion pressure is too small, the limiting effect on the high-frequency welded pipe is poor, and the high-frequency welded pipe is prone to displacement. If the extrusion pressure is too large, it is easy to cause deformation of the high-frequency welded pipe, which affects the finished product quality of the high-frequency welded pipe. Utility Model Content

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a high-frequency welded pipe forming and extrusion equipment.

[0006] The technical solution of this utility model: a high-frequency welded pipe forming and extrusion equipment, comprising:

[0007] The workbench has a mounting bracket on its top;

[0008] The first limiting mechanism is fixedly installed on the workbench to limit the end of the high-frequency welded pipe;

[0009] The second limiting mechanism is movably mounted on the worktable. The second limiting mechanism has the same structure as the first limiting mechanism. The second limiting mechanism and the first limiting mechanism work together to limit the high-frequency welded pipe.

[0010] The distance adjustment mechanism is set on the worktable. One end of the distance adjustment mechanism is connected to the second limit mechanism for adjusting the distance between the first limit mechanism and the second limit mechanism.

[0011] The follow-up mechanism is located above the worktable and is used to follow up the extrusion of high-frequency welded pipes. The follow-up mechanism is movably connected to the mounting bracket.

[0012] Preferably, the second limiting mechanism includes a mounting frame, a movable box, a first limiting component, and a second limiting component; the mounting frame is slidably disposed on the worktable, the movable box is slidably disposed within the mounting frame, the first limiting component is disposed on the mounting frame, the movable end of the first limiting component is disposed within the movable box, and the second limiting component is disposed within the movable box.

[0013] Preferably, the first limiting component includes a drive motor, a drive screw, a threaded sleeve, and a first limiting clamping plate; the drive motor is fixedly connected to the mounting frame, the drive screw is rotatably disposed within the mounting frame, one end of the drive screw is fixedly connected to the output end of the drive motor, the threaded sleeve is fixedly disposed within the movable box, the threaded sleeve is threadedly connected to the drive screw, and the first limiting clamping plate is fixedly connected to the threaded sleeve.

[0014] Preferably, the second limiting assembly includes an adjusting screw, an adjusting sleeve, a connecting ring, a second limiting clamp, and an adjusting component; the two ends of the adjusting screw are rotatably connected to the top and bottom of the inner wall of the mounting frame, respectively; the adjusting sleeve is threadedly connected to the adjusting screw; the connecting ring is fixedly connected to the adjusting sleeve; the connecting ring is slidably connected to the threaded sleeve; the second limiting clamp is fixedly connected to the connecting ring; the adjusting component is disposed inside the movable box and is connected to the adjusting screw.

[0015] Preferably, the adjusting assembly includes an adjusting rod, a bevel gear, and a bevel gear ring; one end of the adjusting rod is rotatably disposed inside the movable box, and the other end of the adjusting rod extends to the outside of the movable box; the bevel gear is fixedly connected to the adjusting rod, and the bevel gear ring is fixedly connected to the adjusting screw; the bevel gear and the bevel gear ring mesh with each other.

[0016] Preferably, the adjusting mechanism includes a movable plate, a fixed plate, and an adjusting screw. The movable plate is slidably mounted on the worktable and is fixedly connected to the mounting frame. The fixed plate is fixedly connected to the worktable. The adjusting screw passes through the fixed plate and is threadedly connected to the fixed plate. One end of the adjusting screw is rotatably connected to the movable plate.

[0017] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects:

[0018] This utility model utilizes the coordinated arrangement of a first limiting mechanism, a second limiting mechanism, and an adjustment mechanism. The first and second limiting mechanisms limit the high-frequency welded pipe from both ends. Subsequently, the first and second limiting clamps limit the high-frequency welded pipe from both the inner and outer sides, respectively. This not only ensures the limiting effect but also prevents deformation of the high-frequency welded pipe, effectively improving the finished product quality of the high-frequency welded pipe. Attached Figure Description

[0019] Figure 1 This is a perspective view of one embodiment of the present invention;

[0020] Figure 2 This is a cross-sectional view of the second limiting mechanism in one embodiment of the present invention;

[0021] Figure 3 This is a perspective view of the second limiting component in one embodiment of the present invention;

[0022] Figure 4 This is a perspective view of the adjusting mechanism in one embodiment of the present invention.

[0023] Reference numerals in the attached drawings: 1. Workbench; 2. Mounting bracket; 31. Mounting frame; 32. Movable box; 331. Drive motor; 332. Drive screw; 333. Threaded sleeve; 334. First limit clamping plate; 341. Adjusting screw; 342. Adjusting sleeve; 343. Connecting ring; 3441. Adjusting rod; 3442. Bevel gear; 3443. Bevel gear ring; 345. Second limit clamping plate; 41. Movable plate; 42. Fixed plate; 43. Adjusting screw; 5. Follow-up mechanism. Detailed Implementation

[0024] Example 1

[0025] like Figure 1-4 As shown, the high-frequency welded pipe forming and extrusion equipment proposed in this utility model includes a worktable 1, a first limiting mechanism, a second limiting mechanism, an adjusting mechanism, and a follower mechanism 5.

[0026] The top of the workbench 1 is equipped with a mounting bracket 2;

[0027] The first limiting mechanism is fixedly installed on the workbench 1 to limit the end of the high-frequency welded pipe;

[0028] The second limiting mechanism is movably set on the workbench 1. The second limiting mechanism has the same structure as the first limiting mechanism. The second limiting mechanism and the first limiting mechanism cooperate to limit the high-frequency welded pipe.

[0029] The distance adjustment mechanism is set on the workbench 1. One end of the distance adjustment mechanism is connected to the second limit mechanism for adjusting the distance between the first limit mechanism and the second limit mechanism.

[0030] The follower mechanism 5 is set above the workbench 1 to follow the extrusion of high-frequency welded pipes. The follower mechanism 5 is movably connected to the mounting bracket 2. The follower mechanism 5 dynamically limits the butt joint of the high-frequency welded pipes. The welding head of the welding machine is set on the follower mechanism 5.

[0031] Example 2

[0032] like Figure 2-3 As shown, the high-frequency welded pipe forming and extrusion equipment proposed in this utility model, compared with the first embodiment, also specifically discloses the structure of the second limiting mechanism; the second limiting mechanism includes a mounting frame 31, a movable box 32, a first limiting component and a second limiting component; the mounting frame 31 is slidably disposed on the worktable 1, the movable box 32 is slidably disposed in the mounting frame 31, the first limiting component is disposed on the mounting frame 31, the movable end of the first limiting component is disposed in the movable box 32, and the second limiting component is disposed in the movable box 32.

[0033] Example 3

[0034] like Figure 2 As shown, the high-frequency welded pipe forming and extrusion equipment proposed in this utility model, compared with Embodiment 2, specifically discloses the structure of the first limiting component; the first limiting component includes a drive motor 331, a drive screw 332, a threaded sleeve 333, and a first limiting clamping plate 334; the drive motor 331 is fixedly connected to the mounting frame 31, the drive motor 331 has forward and reverse rotation functions, and is connected to the control system and power supply through wires; the drive screw 332 is rotatably set in the mounting frame 31, one end of the drive screw 332 is fixedly connected to the output end of the drive motor 331; the threaded sleeve 333 is fixedly set in the movable box 32, the threaded sleeve 333 is threadedly connected to the drive screw 332; and the first limiting clamping plate 334 is fixedly connected to the threaded sleeve 333.

[0035] Example 4

[0036] like Figure 3As shown, this utility model proposes a high-frequency welded pipe forming and extrusion equipment. Compared with Embodiment 3, this embodiment further discloses the structure of the second limiting component. The second limiting component includes an adjusting screw 341, an adjusting sleeve 342, a connecting ring 343, a second limiting clamping plate 345, and an adjusting assembly. The two ends of the adjusting screw 341 are rotatably connected to the top and bottom of the inner wall of the mounting frame 31, respectively. The adjusting sleeve 342 is threadedly connected to the adjusting screw 341. The connecting ring 343 is fixedly connected to the adjusting sleeve 342 and slidably connected to the threaded sleeve 343. The second limiting clamp 345 is fixedly connected to the connecting ring 343. The adjusting component is set inside the movable box 32 and is connected to the adjusting screw 341. The adjusting component includes an adjusting rod 3441, a bevel gear 3442, and a bevel gear ring 3443. One end of the adjusting rod 3441 is rotatably set inside the movable box 32, and the other end of the adjusting rod 3441 extends to the outside of the movable box 32. The bevel gear 3442 is fixedly connected to the adjusting rod 3441, and the bevel gear ring 3443 is fixedly connected to the adjusting screw 341. The bevel gear 3442 and the bevel gear ring 3443 mesh with each other.

[0037] Example 5

[0038] like Figure 4 As shown, the high-frequency welded pipe forming and extrusion equipment proposed in this utility model, compared with embodiment four, specifically discloses the structure of the adjusting mechanism; the adjusting mechanism includes a movable plate 41, a fixed plate 42 and an adjusting screw 43. The movable plate 41 is slidably disposed on the worktable 1, and a slide rail is fixedly connected to the worktable 1. The movable plate 41 is fixedly connected to the mounting frame 31, and the fixed plate 42 is fixedly connected to the worktable 1. The adjusting screw 43 passes through the fixed plate 42 and is threadedly connected to the fixed plate 42. One end of the adjusting screw 43 is rotatably connected to the movable plate 41, and one end of the adjusting screw 43 is fixedly connected to an adjusting handwheel.

[0039] The high-frequency welded pipe to be processed is placed on the workbench 1. The drive motor 331 drives the drive screw 332 to rotate. The rotation of the drive screw 332, in conjunction with the threaded sleeve 333, moves the first limiting clamp 334 and the second limiting clamp 345 to the appropriate position. Rotating the adjusting screw 43 pushes the second limiting mechanism through the movable plate 41, so that the first limiting mechanism and the second limiting mechanism limit the high-frequency welded pipe from both ends. The first limiting clamp 334 and the second limiting clamp 345 are located on the inner and outer sides of the high-frequency welded pipe, respectively. The drive motor 331 operates the first limiting... Positioning clamp 334 contacts the outer surface of the high-frequency welded pipe. Rotating the adjusting rod 3441 drives the bevel gear 3442 to rotate together. The rotation of the bevel gear 3442 drives the bevel gear ring 3443 and the adjusting screw 341 to rotate together through meshing. The rotation of the adjusting screw 341 drives the second limiting clamp 345 to contact the inner surface of the high-frequency welded pipe through the adjusting sleeve 342 and the connecting ring 343. The first limiting clamp 334 and the second limiting clamp 345 limit the high-frequency welded pipe from the inner and outer sides respectively, which not only ensures the limiting effect, but also avoids deformation of the high-frequency welded pipe.

[0040] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A high-frequency welded pipe forming and extrusion equipment, characterized in that, include: A workbench (1) with a mounting bracket (2) on its top; The first limiting mechanism is fixedly installed on the workbench (1) to limit the end of the high-frequency welded pipe; The second limiting mechanism is set on the workbench (1). The second limiting mechanism has the same structure as the first limiting mechanism. The second limiting mechanism and the first limiting mechanism work together to limit the high-frequency welded pipe. The distance adjustment mechanism is set on the worktable (1). One end of the distance adjustment mechanism is connected to the second limit mechanism for adjusting the distance between the first limit mechanism and the second limit mechanism. The follower mechanism (5) is set above the workbench (1) for following the extrusion of high-frequency welded pipes. The follower mechanism (5) is movably connected to the mounting bracket (2).

2. The high-frequency welded pipe forming and extrusion equipment according to claim 1, characterized in that, The second limiting mechanism includes a mounting frame (31), a movable box (32), a first limiting component, and a second limiting component; the mounting frame (31) is slidably mounted on the workbench (1), the movable box (32) is slidably mounted inside the mounting frame (31), the first limiting component is mounted on the mounting frame (31), the movable end of the first limiting component is mounted inside the movable box (32), and the second limiting component is mounted inside the movable box (32).

3. The high-frequency welded pipe forming and extrusion equipment according to claim 2, characterized in that, The first limiting assembly includes a drive motor (331), a drive screw (332), a threaded sleeve (333), and a first limiting clamping plate (334). The drive motor (331) is fixedly connected to the mounting frame (31), the drive screw (332) is rotatably mounted in the mounting frame (31), one end of the drive screw (332) is fixedly connected to the output end of the drive motor (331), the threaded sleeve (333) is fixedly mounted in the movable box (32), the threaded sleeve (333) is threadedly connected to the drive screw (332), and the first limiting clamping plate (334) is fixedly connected to the threaded sleeve (333).

4. The high-frequency welded pipe forming and extrusion equipment according to claim 3, characterized in that, The second limiting assembly includes an adjusting screw (341), an adjusting sleeve (342), a connecting ring (343), a second limiting clamp (345), and an adjusting component. The two ends of the adjusting screw (341) are rotatably connected to the top and bottom of the inner wall of the mounting frame (31), respectively. The adjusting sleeve (342) is threadedly connected to the adjusting screw (341). The connecting ring (343) is fixedly connected to the adjusting sleeve (342). The connecting ring (343) is slidably connected to the threaded sleeve (333). The second limiting clamp (345) is fixedly connected to the connecting ring (343). The adjusting component is set inside the movable box (32) and is connected to the adjusting screw (341).

5. The high-frequency welded pipe forming and extrusion equipment according to claim 4, characterized in that, The adjustment assembly includes an adjustment rod (3441), a bevel gear (3442), and a bevel gear ring (3443); one end of the adjustment rod (3441) is rotatably disposed inside the movable box (32), and the other end of the adjustment rod (3441) extends to the outside of the movable box (32); the bevel gear (3442) is fixedly connected to the adjustment rod (3441); the bevel gear ring (3443) is fixedly connected to the adjustment screw (341); and the bevel gear (3442) and the bevel gear ring (3443) mesh with each other.

6. The high-frequency welded pipe forming and extrusion equipment according to claim 2, characterized in that, The adjustment mechanism includes a movable plate (41), a fixed plate (42), and an adjusting screw (43). The movable plate (41) is slidably mounted on the worktable (1). The movable plate (41) is fixedly connected to the mounting frame (31). The fixed plate (42) is fixedly connected to the worktable (1). The adjusting screw (43) passes through the fixed plate (42) and is threadedly connected to the fixed plate (42). One end of the adjusting screw (43) is rotatably connected to the movable plate (41).