Precise straightening device for thin-wall metal pipe

Abstract

The utility model relates to the technical field of metal pipe straightening, and discloses a thin-wall metal pipe precise straightening device which comprises a supporting table, a straightening box is fixedly connected to the left side of the top of the supporting table, a straightening mechanism is arranged on the outer side of the straightening box, and a rotary clamping mechanism is arranged on the right side of the top of the supporting table. And the rotating clamping mechanism comprises a rotating assembly and a clamping assembly, the rotating assembly is arranged on the right side in the supporting table, the clamping assembly is arranged on the right side of the rotating assembly, the rotating assembly comprises a fixing plate, the fixing plate is fixedly connected to the right side of the bottom of the supporting table, and a first air cylinder is fixedly connected to the right side of the fixing plate. The driving motor drives the worm gear to rotate through the worm, the worm gear drives the fixing disc to rotate, the fixing disc can drive the clamped thin-wall metal pipe to rotate, when the pipe rotates, the pressure of the straightening rollers on the pipe can be evenly distributed, the straightening precision is improved, and the size deviation and the shape error of the pipe are reduced.

Description

Technical Field

[0001] This utility model relates to the field of metal pipe straightening technology, specifically a precision straightening device for thin-walled metal pipes. Background Technology

[0002] Metal pipes are tubular products made of metal materials and are widely used in construction, machinery, chemical, petroleum, natural gas and other fields. Thin-walled metal pipes are a type of metal product with special properties and wide applications.

[0003] The tension straightening device for metal pipe processing disclosed in CN 214442013 U uses an electromagnetic heating controller and an electromagnetic induction coil to heat the metal pipe rapidly until it turns red, thereby softening the structure of the metal pipe and facilitating subsequent tension straightening.

[0004] This metal pipe processing tension straightening device uses an electromagnetic heating controller and an electromagnetic induction coil to inductively heat the metal pipe, softening its structure and facilitating straightening. However, the device lacks a structure to rotate the metal pipe during straightening. Without rotating the pipe, the straightening device can only act on a localized area of ​​the pipe, making it difficult to fully cover all parts. This can easily lead to over-straightening in some areas while other parts remain bent, resulting in uneven straightening and affecting the pipe's straightness and overall quality. Therefore, improvements are needed. Utility Model Content

[0005] The purpose of this invention is to provide a precision straightening device for thin-walled metal tubes to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a precision straightening device for thin-walled metal pipes, comprising a support platform, a straightening box fixedly connected to the top left side of the support platform, a straightening mechanism provided on the outside of the straightening box, and a rotating clamping mechanism provided on the top right side of the support platform;

[0007] The rotating clamping mechanism includes a rotating component and a clamping component. The rotating component is located on the right side inside the support platform, and the clamping component is located on the right side of the rotating component.

[0008] The rotating assembly includes a fixed plate, which is fixedly connected to the bottom right side of the support platform. A first cylinder is fixedly connected to the right side of the fixed plate, and a load-bearing plate is fixedly connected to the left side of the first cylinder. An arc-shaped plate is fixedly connected to the top of the load-bearing plate, and a drive motor is fixedly connected to the back end of the arc-shaped plate. A worm gear is fixedly connected to the front of the drive motor, and the worm gear is rotatably connected to the inner side of the arc-shaped plate. A worm wheel meshes with the bottom of the worm gear, and the worm wheel is rotatably connected to the inner side of the load-bearing plate. A fixed disc is fixedly connected to the right side of the worm wheel.

[0009] Preferably, the inner side of the support platform is provided with a groove corresponding to the movement trajectory of the load-bearing plate, and the load-bearing plate is slidably connected inside the groove. Through the groove, the load-bearing plate can slide inside the support platform, making the load-bearing plate more stable during movement.

[0010] Preferably, the inner side of the load-bearing plate is provided with a circular groove corresponding to the movement trajectory of the worm gear, and the worm gear is rotatably connected inside the circular groove. Through the circular groove, the worm gear can rotate stably inside the load-bearing plate.

[0011] Preferably, the clamping assembly includes a connecting plate, which is fixedly connected to the top and bottom right side of the fixed disk. A first servo motor is fixedly connected to the top of the connecting plate, and a bidirectional threaded rod is fixedly connected to the bottom of the first servo motor. The bidirectional threaded rod is rotatably connected to the inner side of the connecting plate, and a threaded plate is threadedly connected to the outer periphery of the bidirectional threaded rod. An anti-slip clamping plate is fixedly connected to the inner bottom of the threaded plate.

[0012] Preferably, there are two anti-slip clamps that slide across each other. The two anti-slip clamps can hold the thin-walled metal pipe, making the thin-walled metal pipe more stable when straightening.

[0013] Preferably, the straightening mechanism includes a fixed frame, which is fixedly connected to the outside of the straightening box. A second cylinder is fixedly connected to the outside of the fixed frame. A push plate is fixedly connected to the inside of the second cylinder. A slide bar is fixedly connected to the inside of the push plate. A connecting frame is fixedly connected to the inside of the slide bar. A straightening roller is rotatably connected to the inside of the connecting frame. A second servo motor is fixedly connected to the top of the straightening roller. The second servo motor is fixedly connected to the top of the connecting frame.

[0014] Preferably, the straightening box has a sliding hole on its inner side that corresponds to the position of the slide bar, and the slide bar is slidably connected to the inner side of the sliding hole. Through the sliding hole, the slide bar can slide inside the straightening box.

[0015] Compared with the prior art, this utility model provides a precision straightening device for thin-walled metal tubes, which has the following advantages:

[0016] 1. This precision straightening device for thin-walled metal pipes, through a set rotating clamping mechanism, uses a first servo motor, a bidirectional threaded rod, a threaded plate, and an anti-slip clamp to clamp the pipe, making the pipe straightening process more stable;

[0017] After clamping the thin-walled metal tube, the drive motor, worm gear, worm wheel and fixed plate work together to make the fixed plate drive the clamped thin-walled metal tube to rotate. When the tube rotates, the pressure of the straightening roller on the tube can be evenly distributed, which improves the straightening accuracy and reduces the dimensional deviation and shape error of the tube.

[0018] 2. This precision straightening device for thin-walled metal tubes, through a set straightening mechanism, uses a second cylinder, push plate, slide bar, connecting frame and straightening roller in conjunction with the straightening roller according to the diameter of the tube, so that the outer wall of the straightening roller can come into contact with the outer wall of the thin-walled metal tube. The straightening roller is driven to rotate by a servo motor. The rotating straightening roller can continuously straighten the tube, reducing the straightening time and improving production efficiency. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a front view structural diagram of the present invention;

[0021] Figure 2 This is a schematic diagram of the rotating clamping mechanism.

[0022] Figure 3 This is a schematic diagram of the rotating assembly structure;

[0023] Figure 4 This is a schematic diagram of the clamping component structure;

[0024] Figure 5 This is a schematic diagram of the straightening mechanism.

[0025] In the diagram: 1. Support platform; 2. Straightening mechanism; 21. Second servo motor; 22. Straightening roller; 23. Connecting frame; 24. Slide bar; 25. Fixing frame; 26. Second cylinder; 27. Push plate; 3. Straightening box; 4. Rotating clamping mechanism; 41. Rotating assembly; 411. Load-bearing plate; 412. Worm gear; 413. Worm; 414. Arc plate; 415. Drive motor; 416. Fixing disc; 417. Fixing plate; 418. First cylinder; 42. Clamping assembly; 421. Anti-slip clamping plate; 422. First servo motor; 423. Connecting plate; 424. Threaded plate; 425. Bidirectional threaded rod. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] This utility model provides the following technical solution:

[0029] Example 1

[0030] Please see Figure 1-5 This utility model provides a technical solution: a precision straightening device for thin-walled metal pipes, including a support platform 1, a straightening box 3 fixedly connected to the top left side of the support platform 1, a straightening mechanism 2 provided on the outside of the straightening box 3, and a rotating clamping mechanism 4 provided on the top right side of the support platform 1.

[0031] The rotating clamping mechanism 4 includes a rotating component 41 and a clamping component 42. The rotating component 41 is located on the right side inside the support platform 1, and the clamping component 42 is located on the right side of the rotating component 41.

[0032] The rotating assembly 41 includes a fixed plate 417, which is fixedly connected to the bottom right side of the support platform 1. A first cylinder 418 is fixedly connected to the right side of the fixed plate 417. A load-bearing plate 411 is fixedly connected to the left side of the first cylinder 418. An arc-shaped plate 414 is fixedly connected to the top of the load-bearing plate 411. A drive motor 415 is fixedly connected to the back end of the arc-shaped plate 414. A worm gear 413 is fixedly connected to the front of the drive motor 415. The worm gear 413 is rotatably connected to the inner side of the arc-shaped plate 414. A worm wheel 412 is meshed at the bottom of the worm gear 413. The worm wheel 412 is rotatably connected to the inner side of the load-bearing plate 411. A fixed disk 416 is fixedly connected to the right side of the worm wheel 412.

[0033] Furthermore, a groove corresponding to the movement trajectory of the load-bearing plate 411 is provided on the inner side of the support platform 1, and the load-bearing plate 411 is slidably connected to the inside of the groove. Through the groove, the load-bearing plate 411 can slide on the inner side of the support platform 1, making the load-bearing plate 411 more stable during movement.

[0034] Furthermore, a circular groove corresponding to the movement trajectory of the worm gear 412 is provided on the inner side of the load-bearing plate 411, and the worm gear 412 is rotatably connected to the inside of the circular groove. Through the circular groove, the worm gear 412 can rotate stably on the inner side of the load-bearing plate 411.

[0035] Example 2

[0036] Please see Figure 1-5 Furthermore, based on Embodiment 1, the clamping assembly 42 further includes a connecting plate 423, which is fixedly connected to the top and bottom right side of the fixed disk 416. A first servo motor 422 is fixedly connected to the top of the connecting plate 423, and a bidirectional threaded rod 425 is fixedly connected to the bottom of the first servo motor 422. The bidirectional threaded rod 425 is rotatably connected to the inner side of the connecting plate 423, and a threaded plate 424 is threadedly connected to the outer periphery of the bidirectional threaded rod 425. An anti-slip clamping plate 421 is fixedly connected to the inner bottom side of the threaded plate 424.

[0037] Furthermore, there are two anti-slip clamps 421, which slide across each other. The two anti-slip clamps 421 can clamp the thin-walled metal pipe, making the thin-walled metal pipe more stable when straightening.

[0038] Example 3

[0039] Please see Figure 1-5 Furthermore, based on Embodiment 1, the straightening mechanism 2 further includes a fixed frame 25, which is fixedly connected to the outside of the straightening box 3. A second cylinder 26 is fixedly connected to the outside of the fixed frame 25. A push plate 27 is fixedly connected to the inside of the second cylinder 26. A slide bar 24 is fixedly connected to the inside of the push plate 27. A connecting frame 23 is fixedly connected to the inside of the slide bar 24. A straightening roller 22 is rotatably connected to the inside of the connecting frame 23. A second servo motor 21 is fixedly connected to the top of the straightening roller 22. The second servo motor 21 is fixedly connected to the top of the connecting frame 23.

[0040] Furthermore, the straightening box 3 has a sliding hole on its inner side that corresponds to the position of the slide bar 24, and the slide bar 24 is slidably connected to the inner side of the sliding hole. Through the sliding hole, the slide bar 24 can slide inside the straightening box 3.

[0041] In actual operation, when this device is used, the thin-walled metal tube is placed inside the fixed plate 416 and the anti-slip clamp 421, so that the left side of the tube can be inserted into the straightening box 3. The first servo motor 422 is turned on, so that the first servo motor 422 drives the threaded plate 424 to move through the bidirectional threaded rod 425, so that the threaded plate 424 can drive the anti-slip clamp 421 to clamp the tube.

[0042] Open the second cylinder 26, so that the second cylinder 26 drives the slide bar 24, the connecting frame 23 and the straightening roller 22 to move through the push plate 27, so that the outer wall of the straightening roller 22 can come into contact with the outer wall of the thin-walled metal pipe. The straightening roller 22 is driven to rotate by the servo motor, so that the straightening roller 22 can continuously straighten the pipe, reducing the straightening time and improving production efficiency.

[0043] After clamping the thin-walled metal tube, the drive motor 415 is turned on, so that the drive motor 415 drives the worm wheel 412 to rotate through the worm 413, and the worm wheel 412 drives the fixed plate 416 to rotate, so that the fixed plate 416 can drive the clamped thin-walled metal tube to rotate. When the tube rotates, the pressure of the straightening roller 22 on the tube can be evenly distributed, which improves the straightening accuracy and reduces the dimensional deviation and shape error of the tube.

[0044] Open the first cylinder 418, causing the first cylinder 418 to move the load-bearing plate 411, which in turn pushes the clamped thin-walled metal tube to the left, allowing the tube to be straightened by the straightening roller 22.

[0045] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A device for precision straightening of thin-walled metal pipes, comprising a support table (1), characterized in that: A straightening box (3) is fixedly connected to the top left side of the support platform (1), a straightening mechanism (2) is provided on the outside of the straightening box (3), and a rotating clamping mechanism (4) is provided on the top right side of the support platform (1). The rotating clamping mechanism (4) includes a rotating component (41) and a clamping component (42). The rotating component (41) is located on the right side inside the support platform (1), and the clamping component (42) is located on the right side of the rotating component (41). The rotating assembly (41) includes a fixed plate (417), which is fixedly connected to the bottom right side of the support platform (1). A first cylinder (418) is fixedly connected to the right side of the fixed plate (417). A load-bearing plate (411) is fixedly connected to the left side of the first cylinder (418). An arc plate (414) is fixedly connected to the top of the load-bearing plate (411). A drive motor (415) is fixedly connected to the back end of the arc plate (414). A worm gear (413) is fixedly connected to the front of the drive motor (415). The worm gear (413) is rotatably connected to the inner side of the arc plate (414). A worm wheel (412) meshes with the bottom of the worm gear (413). The worm wheel (412) is rotatably connected to the inner side of the load-bearing plate (411). A fixed disk (416) is fixedly connected to the right side of the worm wheel (412).

2. The device for precision straightening of thin-walled metal pipes according to claim 1, characterized in that: The inner side of the support platform (1) is provided with a groove corresponding to the movement trajectory of the load-bearing plate (411), and the load-bearing plate (411) is slidably connected inside the groove.

3. The device for precision straightening of thin-walled metal pipes according to claim 1, characterized in that: The inner side of the load-bearing plate (411) is provided with a circular groove corresponding to the movement trajectory of the worm gear (412), and the worm gear (412) is rotatably connected inside the circular groove.

4. The device for precision straightening of thin-walled metal pipes according to claim 1, characterized in that: The clamping assembly (42) includes a connecting plate (423), which is fixedly connected to the top and bottom right side of the fixed disk (416). A first servo motor (422) is fixedly connected to the top of the connecting plate (423), and a bidirectional threaded rod (425) is fixedly connected to the bottom of the first servo motor (422). The bidirectional threaded rod (425) is rotatably connected to the inner side of the connecting plate (423), and a threaded plate (424) is threadedly connected to the outer periphery of the bidirectional threaded rod (425). An anti-slip clamping plate (421) is fixedly connected to the inner bottom of the threaded plate (424).

5. A device for precision straightening of thin-walled metal tubes according to claim 4, characterized in that: There are two anti-slip clamps (421), and the two anti-slip clamps (421) slide crosswise.

6. The precision straightening device for thin-walled metal tubes according to claim 1, characterized in that: The straightening mechanism (2) includes a fixed frame (25), which is fixedly connected to the outside of the straightening box (3). A second cylinder (26) is fixedly connected to the outside of the fixed frame (25). A push plate (27) is fixedly connected to the inside of the second cylinder (26). A slide bar (24) is fixedly connected to the inside of the push plate (27). A connecting frame (23) is fixedly connected to the inside of the slide bar (24). A straightening roller (22) is rotatably connected to the inside of the connecting frame (23). A second servo motor (21) is fixedly connected to the top of the straightening roller (22). The second servo motor (21) is fixedly connected to the top of the connecting frame (23).

7. A thin-walled metal tube precision straightening device according to claim 6, characterized in that: The straightening box (3) is internally provided with a sliding hole corresponding to the position of the sliding bar (24), and the sliding bar (24) is slidingly connected to the inside of the sliding hole.

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