High-quality precise pipeline beveling machine

Abstract

The utility model is applicable to the technical field of pipeline welding, and provides a high-quality accurate pipeline beveling machine, which comprises a positioning driving frame additionally arranged on a pipeline beveling machine main body, a plurality of positioning supporting legs are additionally arranged on the positioning driving frame, each positioning supporting leg comprises a guide supporting leg and an abutting foot, each abutting foot comprises a flexible abutting head and a supporting seat, and the flexible abutting heads are arranged on the supporting seats. The flexible abutting head is connected to the upper portion of the supporting base, an air bag is arranged in the flexible abutting head, and a flexible connecting plate and a plurality of limiting assemblies are installed in the air bag; in the air bag ventilation process, the air bag can be adaptively expanded and filled according to the bending radian of the inner wall of the pipeline, the supporting angle and the supporting position can be adaptively adjusted according to the expansion of the air bag after the multiple limiting assemblies are unlocked, and the multiple limiting assemblies can be locked again after reaching specified supporting points; and adaptive accurate abutting can be well conducted according to different pipe diameter radians of pipelines of different sizes, and adaptability and positioning efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline welding, in particular to a high-quality and precise pipeline beveling machine. Background Art

[0002] The pipe beveling machine is a special tool for chamfering the front surface of pipes or flat plates before welding. It solves the shortcomings of flame cutting and grinding with a grinder, such as irregular angles, rough bevels, and high operating noise. It has the advantages of easy operation, standard angles, and smooth surfaces. It is widely used in industries such as petroleum, chemical industry, electric power, natural gas, metallurgy, shipbuilding, boilers, pharmaceuticals, water treatment, as well as pipeline installation projects and pipeline maintenance in new projects.

[0003] In order to make the center line of the pipe beveling machine coincide with the column center line of the pipe, the pipe needs to be positioned; however, the existing technology for positioning the pipe against the pipe cannot adapt well to the different pipe diameters and curvatures of pipes of different sizes and accurately abut, which can easily cause damage to the inner wall of the pipe; for example, the "tightening block" recorded in the existing Chinese patent for a pipe beveling machine (authorization announcement number CN114850577B) can only support on one line, and its support coverage on the radial flat surface is small; at the same time, it cannot adapt well to the different pipe diameters and curvatures of pipes of different sizes and accurately adjust the support area on the radial flat surface.

[0004] Therefore, a high-quality and precise pipe beveling machine is proposed to solve the above problems. Utility Model Content

[0005] The purpose of the embodiment of the utility model is to provide a high-quality and precise pipe beveling machine, aiming to solve the problem that the existing technology for abutting and positioning pipes cannot adapt well to the different pipe diameters and curvatures of pipes of different sizes and accurately abut, which easily causes damage to the inner wall of the pipe.

[0006] Specific technical solution: A high-quality and precise pipe beveling machine comprises a positioning drive frame installed on the main body of the pipe beveling machine, wherein a plurality of positioning support legs are installed on the positioning drive frame, and the plurality of positioning support legs are distributed in a circular array around the positioning drive frame; the positioning drive frame is used to drive the positioning support legs to adjust their positions in the radial direction of the pipe; the positioning support legs comprise guide support legs and abutment feet, the abutment feet are fixed at one end of the guide support legs, and the other end of the guide support legs acts on the positioning drive frame, and the positioning drive frame is used to drive the guide support legs to drive the abutment feet to adjust their positions in the radial direction of the pipe, thereby completing the abutment of the abutment feet. On the inner wall of the pipe; the rest foot includes a flexible rest head and a support seat, the flexible rest head is connected above the support seat, the flexible rest head has an airbag inside it, a flexible connecting plate and multiple limit components are installed inside the airbag, one end of the multiple limit components are arrayed on the flexible connecting plate, and the other end is ball-hinged on the support seat; the flexible connecting plate is at the top of the flexible rest head; during the ventilation process of the airbag, the airbag will adaptively expand and fill according to the curvature of the inner wall of the pipe, and the multiple limit components will adaptively adjust the support angle and support position according to the expansion of the airbag after being unlocked, and the multiple limit components will be locked again after reaching the designated support point. After the positioning drive frame and multiple positioning support legs enter the pipeline, the positioning drive frame is used to drive the guide support legs to drive the abutment feet to adjust their positions in the radial direction of the pipeline, so that the abutment feet are abutted against the inner wall of the pipeline; thereafter, the limit assembly is unlocked, and the airbag is ventilated. The airbag will adaptively expand and fill according to the curvature of the inner wall of the pipeline, and multiple limit assemblies will adaptively adjust the support angle and support position according to the expansion of the airbag. After reaching the designated support point, the multiple limit assemblies will be re-locked, so that they can adapt to and accurately abut against the different diameters and curvatures of pipelines of different sizes, avoiding problems that easily cause damage to the inner wall of the pipeline, improving adaptability and positioning efficiency, and facilitating the precise coincidence of the center line of the pipeline beveling machine with the column center line of the pipeline.

[0007] The technical solution of this application is further described below:

[0008] In one embodiment, the limiting component includes:

[0009] Abutment plates, the abutment plates being inserted through the flexible connection plates;

[0010] A plurality of telescopic rods are distributed in an array along the main body of the abutting plate.

[0011] Furthermore, the telescopic rod includes:

[0012] Storage tube;

[0013] An insertion rod, the insertion rod being movably inserted into the interior of the storage tube, a spring being installed inside the storage tube, and the spring being connected to the end of the insertion rod;

[0014] Two hinged balls, one of which is fixed on the end of the receiving tube, and the receiving tube is hinged on the support seat by means of the receiving tube ball; the other hinged ball is fixed on the end of the insertion rod, and the insertion rod is hinged on the abutment plate by means of the hinged ball.

[0015] Furthermore, multiple sets of electromagnetic coils are laid inside the storage tube and on the surface of the hinged ball. When the electromagnetic coils are energized, they have magnetism to perform adsorption and limit locking, and when the power is cut off, the magnetism is lost to complete the unlocking.

[0016] After the power is turned off, the multiple sets of electromagnetic coils lose their magnetism, and the coils can move and insert inside the storage tube. The hinged ball can move and rotate on the abutment plate and the support seat to release the lock of the limit assembly. Then the airbag is ventilated. The airbag will adaptively expand and fill according to the curvature of the inner wall of the pipe. The telescopic rod and the abutment plate will adaptively adjust the support angle and support position according to the expansion of the airbag. Multiple limit assemblies will be locked again after reaching the designated support point.

[0017] In one embodiment, the supporting foot further includes a flexible connecting tube, which is connected to the support seat and communicates with the airbag.

[0018] In one embodiment, the guide support leg comprises:

[0019] A guide prism, one end of which is fixed to the support seat, and the guide prism is movably inserted into the positioning drive frame;

[0020] The guide support plate is fixed on the guide prism at the other end, and the guide support plate slides against the positioning drive frame.

[0021] In one embodiment, the positioning drive frame includes a positioning frame and a drive frame, and the positioning frame is installed on the drive frame.

[0022] Furthermore, the positioning frame includes:

[0023] A positioning plate, the positioning plate being fixed on the pipe beveling machine body;

[0024] The guide circular table is fixed on the positioning plate, and the guide circular table and the positioning plate are fixedly connected in an integrated manner; the guide circular table slides and abuts against the guide support legs.

[0025] Furthermore, the drive frame includes:

[0026] Support ring;

[0027] A plurality of guide holes, wherein the plurality of guide holes are all provided on the support ring and are distributed in an annular array along the support ring;

[0028] A plurality of hydraulic telescopic rods are fixed on the support ring, and the plurality of hydraulic telescopic rods are distributed in a ring array along the support ring.

[0029] Compared with the prior art, the high-quality and precise pipe beveling machine of the present invention uses the positioning drive frame to drive the guide support legs to adjust the position of the abutting feet in the radial direction of the pipe after the positioning drive frame and multiple positioning support legs enter the pipe, so that the abutting feet are abutted against the inner wall of the pipe; thereafter, the limit assembly is unlocked, and the airbag is ventilated, and the airbag will adaptively expand and fill according to the curvature of the inner wall of the pipe, and multiple limit assemblies will adaptively adjust the support angle and support position according to the expansion of the airbag, and the multiple limit assemblies will be re-locked after reaching the designated support point, so that they can be adaptively and precisely abutted according to the different pipe diameters and curvatures of pipes of different sizes, avoiding the problem that easily causes damage to the inner wall of the pipe, improving adaptability and positioning efficiency, and facilitating the precise coincidence of the center line of the pipe beveling machine with the column center line of the pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0031] Figure 1 This is a schematic diagram of the structure of the utility model high-quality and precise pipe beveling machine;

[0032] Figure 2 for Figure 1 Schematic diagram of the structure of the central positioning drive frame;

[0033] Figure 3 for Figure 2 Structural diagram of the middle positioning frame;

[0034] Figure 4 for Figure 2 Schematic diagram of the structure of the middle drive frame;

[0035] Figure 5 for Figure 1 Schematic diagram of the structure of the middle positioning support leg;

[0036] Figure 6 for Figure 5 Schematic diagram of the structure of the middle guide support leg;

[0037] Figure 7 for Figure 5 Schematic diagram of the structure of the middle supporting foot;

[0038] Figure 8 This is a schematic diagram of the assembly structure of the flexible connecting plate and the limiting component in the present utility model;

[0039] Figure 9 for Figure 8 Schematic diagram of the structure of the middle limit assembly;

[0040] Figure 10 This is a demonstration diagram of the application of the utility model to a pipeline;

[0041] Figure 11 Demonstration diagram of the adaptive adjustment of the support area on the radial flat surface by the flexible connecting plate and limiting assembly combination in the present invention (wherein A is a demonstration of a normal flexible connecting plate and limiting assembly combination without adjustment; B is a demonstration of the flexible connecting plate and limiting assembly combination increasing the support area on the radial flat surface; and C is a demonstration of the flexible connecting plate and limiting assembly combination reducing the support area on the radial flat surface).

[0042] The codes in the accompanying drawings are:

[0043] 1 is a positioning drive frame; positioning frame 100; positioning plate 110, guide round table 120; drive frame 200; hydraulic telescopic rod 210, support ring 220, guide hole 230;

[0044] 2 is a positioning support leg; guide support leg 300; guide support plate 310, guide prism 320; abutment foot 400; flexible abutment head 410, support seat 420, flexible connecting tube 430, flexible connecting plate 440, limit assembly 450; abutment plate 4501, telescopic rod 4502, hinged ball 4503;

[0045] 3 is the pipeline. DETAILED DESCRIPTION

[0046] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely for the purpose of explaining the present invention and are not intended to limit the present invention. The specific implementation of the present invention is described in detail below with reference to the specific embodiments.

[0047] In this utility model embodiment, please refer to Figure 1 、 Figure 5-Figure 11 The high-quality and precise pipe beveling machine comprises a positioning drive frame 1 mounted on the main body of the pipe beveling machine, wherein the positioning drive frame 1 is mounted with a plurality of positioning support legs 2, which are distributed in a circular array around the positioning drive frame 1; the positioning drive frame 1 is used to drive the positioning support legs 2 to adjust the position in the radial direction of the pipe;

[0048] It should be noted that the components of the pipe beveling machine body other than the positioning drive frame 1 that are not described are prior art, and their detailed structures can be found in existing literature journals, and they can also be purchased directly on the market, or they can be assembled from components purchased on the market, etc. They are not protected by the present invention and will not be described in detail here, nor are they drawn in the accompanying drawings.

[0049] The positioning support leg 2 includes a guide support leg 300 and a resting foot 400. The resting foot 400 is fixed at one end of the guide support leg 300. The other end of the guide support leg 300 acts on the positioning drive frame 1. The positioning drive frame 1 drives the guide support leg 300 to drive the resting foot 400 to adjust its position in the radial direction of the pipe, so that the resting foot 400 rests against the inner wall of the pipe.

[0050] The abutting foot 400 includes a flexible abutting head 410 and a support base 420. The flexible abutting head 410 is connected to the support base 420. The flexible abutting head 410 has an air bag inside. A flexible connecting plate 440 and multiple limiting components 450 are installed inside the air bag. One end of the multiple limiting components 450 is arrayed on the flexible connecting plate 440 and the other end is ball-hinged to the support base 420. The flexible connecting plate 440 is located on the top of the flexible abutting head 410.

[0051] During the airbag ventilation process, the airbag will adaptively expand and fill according to the curvature of the inner wall of the pipe. After the multiple limit components 450 are unlocked, the support angle and support position will be adaptively adjusted according to the expansion of the airbag. After the multiple limit components 450 reach the designated support point, they will be locked again.

[0052] Therefore, the existing technology for positioning the pipe against the pipe cannot adapt well to the different diameters and curvatures of pipes of different sizes and accurately abut against the pipe, which easily leads to damage to the inner wall of the pipe: this application can achieve the following:

[0053] After the positioning drive frame 1 and the multiple positioning support legs 2 enter the pipe, the positioning drive frame 1 is used to drive the guide support legs 300 to drive the abutting legs 400 to adjust their positions in the radial direction of the pipe, so that the abutting legs 400 are abutted against the inner wall of the pipe; thereafter, the locking of the limiting assembly 450 is released, and the airbag is ventilated. The airbag will adaptively expand and fill according to the curvature of the inner wall of the pipe, and the multiple limiting assemblies 450 will adaptively adjust the support angle and support position according to the expansion of the airbag. The multiple limiting assemblies 450 will be locked again after reaching the designated support point (for details, please refer to Figure 11Demonstration diagram of adaptive adjustment of the support area on the radial flat surface by the combination of the flexible connecting plate 440 and the limiting assembly 450, wherein A is a demonstration of a normal flexible connecting plate 440 and the limiting assembly 450 combination without adjustment; B is a demonstration of the flexible connecting plate 440 and the limiting assembly 450 combination increasing the support area on the radial flat surface; C is a demonstration of the flexible connecting plate 440 and the limiting assembly 450 combination reducing the support area on the radial flat surface). This allows for adaptive and precise abutment according to the different diameters and curvatures of pipes of different sizes, avoiding problems that easily lead to damage to the inner wall of the pipe, improving adaptability and positioning efficiency, and facilitating accurate coincidence of the center line of the pipe beveling machine with the column center line of the pipe.

[0054] In this utility model embodiment, please refer to Figure 8 and Figure 9 : The limiting assembly 450 includes:

[0055] Abutment plate 4501 , the abutment plate 4501 being inserted into the flexible connection plate 440 ;

[0056] Multiple telescopic rods 4502 are distributed in an array along the main body of the supporting plate 4501.

[0057] For further information, see Figure 8 and Figure 9 : The telescopic rod 4502 includes:

[0058] Storage tube;

[0059] An insertion rod, the insertion rod being movably inserted into the interior of the storage tube, a spring being installed inside the storage tube, and the spring being connected to the end of the insertion rod;

[0060] There are two hinged balls 4503, one of which is fixed at the end of the storage tube, and the storage tube is hinged to the support seat 420 by means of this storage tube ball; the other hinged ball 4503 is fixed at the end of the insertion rod, and the insertion rod is hinged to the abutment plate 4501 by means of this hinged ball 4503.

[0061] For further information, see Figure 8 and Figure 9 : Multiple sets of electromagnetic coils are laid inside the storage tube and on the surface of the hinged ball 4503. When the electromagnetic coils are energized, they have magnetism to perform adsorption and limit locking. When the power is cut off, the magnetism is lost and the locking is released.

[0062] It should be noted here that the electromagnetic coil and the power wiring method of the electromagnetic coil are both existing technologies. Their detailed structures can be found in existing literature journals, and they can also be purchased directly on the market, or parts can be purchased on the market to assemble them, etc.; they are not what the present invention wants to protect, so they will not be elaborated here, nor are they drawn in the accompanying drawings.

[0063] Therefore, after the power is turned off, the multiple sets of electromagnetic coils lose their magnetism, and they can be inserted and inserted inside the storage tube. The hinged ball 4503 can be moved and rotated on the abutment plate 4501 and the support seat 420 to complete the release of the limit component 450 lock. Then the airbag is ventilated. The airbag will adaptively expand and fill according to the curvature of the inner wall of the pipe. The telescopic rod 4502 and the abutment plate 4501 will adaptively adjust the support angle and support position according to the expansion of the airbag. The multiple limit components 450 will be locked again after reaching the designated support point.

[0064] In this embodiment of the utility model, please refer to Figure 7 : The abutting foot 400 also includes a flexible connecting tube 430, which is connected to the support seat 420 and communicates with the airbag.

[0065] It should be noted here that the air extraction method of the flexible connecting tube 430 is an existing technology, for example, it can be an exhaust fan, or a blower, etc. Its detailed structure can be found in existing literature journals, and it can also be purchased directly on the market, or parts can be purchased on the market to assemble it, etc.; it is not what the present invention wants to protect, so it will not be elaborated here, nor drawn in the accompanying drawings.

[0066] In this utility model embodiment, please refer to Figure 6 : The guide support leg 300 includes:

[0067] A guide prism 320, one end of which is fixed to the support seat 420, and the guide prism 320 is movably inserted into the positioning drive frame 1;

[0068] The guide support plate 310 is fixed on the guide prism 320 at the other end, and the guide support plate 310 slides against the positioning drive frame 1.

[0069] In this utility model embodiment, please refer to Figure 1 and Figure 2 : The positioning driving frame 1 includes a positioning frame 100 and a driving frame 200, and the positioning frame 100 is installed on the driving frame 200.

[0070] For further information, see Figure 2 and Figure 3 : The positioning frame 100 includes:

[0071] A positioning plate 110, wherein the positioning plate 110 is fixed to the pipe beveling machine body;

[0072] The guide platform 120 is fixed on the positioning plate 110, and the guide platform 120 and the positioning plate 110 are fixedly connected in an integral manner; the guide platform 120 slides against the guide support leg 300 (specifically, the guide platform 120 slides against the guide support plate 310).

[0073] For further information, see Figure 2 and Figure 4 : The driving frame 200 includes:

[0074] Support ring 220;

[0075] A plurality of guide holes 230 , each of which is provided on the support ring 220 , and is distributed in a circular array along the support ring 220 (specifically, the guide holes 230 are used to guide the prisms 320 to move through);

[0076] Multiple hydraulic telescopic rods 210 are fixed on the support ring 220 , and the multiple hydraulic telescopic rods 210 are distributed in a ring array along the support ring 220 .

[0077] Therefore, when the multiple hydraulic telescopic rods 210 pull the support ring 220 to move, the guide support plate 310 can be forced to move along the guide circular table 120, thereby pushing the abutment foot 400 to adjust its position in the radial direction of the pipeline.

[0078] In the description of the present invention, unless otherwise specified, "plurality" means two or more. Although the embodiments of the present invention have been shown and described in the description of the present invention, it is understood by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. High-quality and precise pipe beveling machine, characterized by: The invention comprises a positioning drive frame (1) mounted on a main body of a pipe beveling machine, wherein a plurality of positioning support legs (2) are mounted on the positioning drive frame (1), and the plurality of positioning support legs (2) are distributed in a circular array around the positioning drive frame (1); the positioning drive frame (1) is used to drive the positioning support legs (2) to adjust the position in the radial direction of the pipe; The positioning support leg (2) comprises a guide support leg (300) and a resting foot (400), wherein the resting foot (400) is fixed at one end of the guide support leg (300), and the other end of the guide support leg (300) acts on the positioning drive frame (1), and the positioning drive frame (1) drives the guide support leg (300) to drive the resting foot (400) to adjust its position in the radial direction of the pipeline, thereby completing the resting foot (400) resting against the inner wall of the pipeline; The abutting foot (400) includes a flexible abutting head (410) and a support seat (420). The flexible abutting head (410) is connected above the support seat (420). An air bag is provided inside the flexible abutting head (410). A flexible connecting plate (440) and a plurality of limiting components (450) are installed inside the air bag. One end of the plurality of limiting components (450) is distributed in an array on the flexible connecting plate (440), and the other end is spherically hinged on the support seat (420). The flexible connecting plate (440) is located on the top of the flexible abutting head (410). During the airbag ventilation process, the airbag will be adaptively expanded and filled according to the curvature of the inner wall of the pipe. After the multiple limit assemblies (450) are unlocked, the support angle and support position will be adaptively adjusted according to the expansion of the airbag. After the multiple limit assemblies (450) reach the designated support point, they will be locked again.

2. The high-quality and precise pipe beveling machine according to claim 1, characterized in that: The limiting assembly (450) includes: Abutment plate (4501), the abutment plate (4501) being inserted into the flexible connection plate (440); A plurality of telescopic rods (4502) are distributed in an array along the main body of the abutting plate (4501).

3. The high-quality and precise pipe beveling machine according to claim 2, characterized in that: The telescopic rod (4502) comprises: Storage tube; An insertion rod, the insertion rod being movably inserted into the interior of the storage tube, a spring being installed inside the storage tube, and the spring being connected to the end of the insertion rod; Two hinged balls (4503), one of which is fixed to the end of the storage tube, and the storage tube is hinged to the support seat (420) by means of the storage tube ball; the other hinged ball (4503) is fixed to the end of the insertion rod, and the insertion rod is hinged to the abutment plate (4501) by means of the hinged ball (4503).

4. The high-quality and precise pipe beveling machine according to claim 3, characterized in that: A plurality of sets of electromagnetic coils are provided inside the storage tube and on the surface of the hinged ball (4503). When the electromagnetic coils are energized, they are magnetically attracted and locked, and when the power is turned off, the magnetism is lost and the locking is released.

5. The high-quality and precise pipe beveling machine according to claim 1, characterized in that: The supporting foot (400) further comprises a flexible connecting tube (430), wherein the flexible connecting tube (430) is connected to the supporting seat (420) and communicates with the airbag.

6. The high-quality and precise pipe beveling machine according to claim 1, characterized in that: The guide support leg (300) comprises: A guide prism (320), one end of the guide prism (320) is fixed on the support seat (420), and the guide prism (320) is movably inserted into the positioning drive frame (1); A guide support plate (310) is fixed on the guide prism (320) at the other end, and the guide support plate (310) slides against the positioning drive frame (1).

7. The high-quality and precise pipe beveling machine according to any one of claims 1 to 6, characterized in that: The positioning drive frame (1) comprises a positioning frame (100) and a drive frame (200), wherein the positioning frame (100) is mounted on the drive frame (200).

8. The high-quality and precise pipe beveling machine according to claim 7, characterized in that: The positioning frame (100) comprises: A positioning plate (110), wherein the positioning plate (110) is fixed on the pipe beveling machine body; The guide truncated platform (120) is fixed on the positioning plate (110), and the guide truncated platform (120) and the positioning plate (110) are fixedly connected in an integral manner; the guide truncated platform (120) slides against the guide support leg (300).

9. The high-quality and precise pipe beveling machine according to claim 8, characterized in that: The driving frame (200) comprises: Support ring (220); a plurality of guide holes (230), wherein the plurality of guide holes (230) are all provided on the support ring (220), and the plurality of guide holes (230) are distributed in an annular array along the support ring (220); A plurality of hydraulic telescopic rods (210) are fixed on the support ring (220), and the plurality of hydraulic telescopic rods (210) are distributed in a ring array along the support ring (220).

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