A beveling machine for pipe fitting processing
By combining internal and external clamping structures with a motor-driven gear set, the stability problem of the central column during tool rotation and cutting is solved, achieving high-precision beveling and improving beveling quality and operating efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN XUANMING AUTO PARTS CO LTD
- Filing Date
- 2025-06-12
- Publication Date
- 2026-05-26
AI Technical Summary
The existing beveling machine for pipe fittings has insufficient stability of the central column when the cutting tool rotates, which affects the beveling quality.
It adopts an internal and external clamping structure, and uses a first motor to drive a bidirectional screw and a hydraulic rod to achieve multi-point support and stable fixation of the central column. Combined with the motor-driven gear set, it performs rotary cutting of the beveling tool, replacing traditional manual or step-by-step processing.
It improves the stability of the central column, ensures the flatness and angle consistency of the bevel surface, is easy to operate, has high processing efficiency, is compact in size, and is easy to transport and operate on site.
Smart Images

Figure CN224273547U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipe beveling machine technology, specifically a beveling machine for pipe fitting processing. Background Technology
[0002] Pipe beveling machines are specialized tools for beveling pipes or plates at the welding front end. They solve the shortcomings of flame cutting, grinding, and other processes, such as non-standard angles, rough bevels, and high noise. They are easy to operate, produce standard angles, and create smooth surfaces.
[0003] Chinese patent CN218926454U discloses a beveling machine for pipe fittings. It adopts a multi-point fixing method inside the pipe, which can improve the fixing effect, increase stability, make it more stable during operation, improve the flatness of the beveling surface, and adjust the position of the beveling cutter, thereby enabling beveling work on pipes of different sizes, expanding its application range. The overall structure is small in size, has low manufacturing cost, and is easy to transport.
[0004] While the above solutions can fix the central column using internal supports, the cutting tool generates a certain reverse impact force on the central column when rotating and cutting through the rotating arm and adjustment mechanism. Relying solely on one-sided limiting is insufficient to guarantee the stability of the central column during processing, thus affecting the beveling quality of the pipe. Therefore, we provide a beveling machine for pipe fittings to solve these problems. Utility Model Content
[0005] 1) Technical problems to be solved
[0006] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a beveling machine for pipe fitting processing.
[0007] (ii) Technical Solution
[0008] To achieve the above objectives, this utility model provides the following technical solution: a beveling machine for pipe fitting processing, comprising:
[0009] A control box, on which a central column is fixedly connected, and on which a first fixing component is provided for fixing the central column inside the pipeline.
[0010] Two secondary fixing components are symmetrically arranged on the control box and are used to fix the central column outside the pipeline.
[0011] The mounting base is rotatably connected to the control box. A locking structure is installed on the mounting base, and a beveling tool is installed inside the locking structure. The control box is provided with a rotating component for rotating the mounting base.
[0012] Furthermore, the first fixing component includes a first motor mounted on the control box, the output shaft of the first motor is equipped with a bidirectional screw, and both ends of the bidirectional screw are respectively threaded with sliders.
[0013] Furthermore, the central column is provided with a circular array of moving slots, and a first clamping plate is provided on the outside of each moving slot. Two hinge seats are fixedly connected to the first clamping plate, and the hinge seats are located inside the moving slot. A hinge rod is hinged to the hinge seat, and the end of the hinge rod away from the hinge seat is hinged to the slider.
[0014] Furthermore, the second fixing component includes a hydraulic rod mounted on the control box and a fixing seat fixedly connected to the control box. A linkage plate is fixedly connected to the telescopic end of the hydraulic rod, and a linkage rod is fixedly connected to the linkage plate. One end of the linkage rod passes through the fixing seat and is fixedly connected to a second clamping plate.
[0015] Furthermore, the mounting base is annular, and the central post is located within the annular hole of the mounting base.
[0016] Furthermore, the rotating assembly includes a second motor mounted on the control box, the output shaft of the second motor is equipped with a second gear, and a first gear is fixedly connected to the mounting base, with the first gear meshing with the second gear.
[0017] (iii) Beneficial effects:
[0018] Compared with existing technologies, this beveling machine for pipe fittings has the following advantages:
[0019] I. This utility model uses a first motor to drive a bidirectional screw, which in turn drives a slider to push multiple sets of first clamping plates against the inner wall of the pipe through a hinged rod, forming a multi-point support in a circumferential array. It also uses a hydraulic rod to drive a linkage plate, which in turn pushes a second clamping plate to clamp the outer wall of the pipe, forming a double-stabilized structure of "internal and external clamping" with the internal support. This further counteracts processing vibrations and ensures that the central column maintains high-precision positioning during the beveling process, thereby improving the flatness and angle consistency of the pipe beveling surface.
[0020] II. This utility model uses a motor-driven gear set to rotate the annular mounting base, enabling continuous cutting of the beveling tool, replacing the traditional manual or step-by-step processing method. It is easy to operate and has high processing efficiency. By integrating the control box, fixing components and rotating mechanism into the end of the pipe, it is compact and has low manufacturing cost, making it easy to transport and operate on site. At the same time, the locking structure allows for flexible tool replacement to meet different beveling process requirements. Attached Figure Description
[0021] Figure 1 The three-dimensional representation of this utility model Figure 1 ;
[0022] Figure 2 The three-dimensional representation of this utility model Figure 2 ;
[0023] Figure 3 This is a cross-sectional view of the present invention;
[0024] Figure 4 This utility model Figure 3 An enlarged schematic diagram of the structure at point A in the middle.
[0025] In the diagram: 1. Control box; 2. Central column; 3. First motor; 4. Bidirectional screw; 5. Slider; 6. Moving slot; 7. First clamping plate; 8. Hinge rod; 9. Hinge seat; 10. Hydraulic rod; 11. Linkage plate; 12. Fixed seat; 13. Linkage rod; 14. Second clamping plate; 15. Mounting seat; 16. Locking structure; 17. Beveling tool; 18. Second motor; 19. First gear; 20. Second gear. 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] like Figure 1-4 As shown, this utility model provides a technical solution: a beveling machine for pipe fitting processing, including a control box 1, two second fixing components and a mounting base 15.
[0028] A central column 2 is fixedly connected to the control box 1. When installing this device, the control box 1 is outside the pipe to be processed, while the central column 2 is inside the pipe to be processed. The central column 2 is provided with a first fixing component for fixing the central column 2 inside the pipe.
[0029] The first fixed component includes a first motor 3 mounted on the control box 1. The output shaft of the first motor 3 is equipped with a bidirectional screw 4. The two ends of the bidirectional screw 4 are respectively threaded to sliders 5. The bidirectional screw 4 is a screw with opposite threads at both ends. The output shaft of the first motor 3 drives the bidirectional screw 4 to rotate.
[0030] The central column 2 has a circular array of moving slots 6. Each moving slot 6 has a first clamping plate 7 on its outside. Two hinge seats 9 are fixedly connected to the first clamping plate 7. The hinge seats 9 are located inside the moving slot 6. A hinge rod 8 is hinged to the hinge seat 9. The end of the hinge rod 8 away from the hinge seat 9 is hinged to the slider 5.
[0031] After the bidirectional screw 4 rotates, the two sliders 5 will move towards each other, and the first clamping plate 7 will be moved through the hinge rod 8 and the hinge seat 9. This allows the distance between the first clamping plate 7 and the central column 2 to be adjusted, thereby pressing the first clamping plate 7 against the inner wall of the pipe to initially fix the central column 2.
[0032] Two second fixing components are symmetrically arranged on the control box 1 for fixing the central column 2 outside the pipeline. The second fixing components include a hydraulic rod 10 installed on the control box 1 and a fixing seat 12 fixedly connected to the control box 1. The telescopic end of the hydraulic rod 10 is fixedly connected to a linkage plate 11. A linkage rod 13 is fixedly connected to the linkage plate 11. One end of the linkage rod 13 passes through the fixing seat 12 and is fixedly connected to a second clamping plate 14.
[0033] After the central column 2 is initially fixed, the linkage plate 11 can be moved by the telescopic end of the hydraulic rod 10, and the second clamping plate 14 is pressed against the outer wall of the pipe under the action of the linkage rod 13, thereby achieving the effect of double fixing of the control box 1. The side of the first clamping plate 7 and the second clamping plate 14 near the pipe are both arc surfaces, and anti-slip textures are designed on the arc surfaces.
[0034] Mounting base 15 is rotatably connected to control box 1. Mounting base 15 is annular, and central column 2 is located in the annular hole of mounting base 15. A locking structure 16 is installed on mounting base 15, and a beveling tool 17 is installed in the locking structure 16. The control box 1 is provided with a rotating assembly for rotating mounting base 15. The locking structure 16 can be a clamp driven by pneumatic or hydraulic pressure, or it can be a clamp with rotating bolts and pressure plates. Such clamps and tools are existing structures and will not be described in detail in this application.
[0035] The rotating assembly includes a second motor 18 mounted on the control box 1. The output shaft of the second motor 18 is equipped with a second gear 20. A first gear 19 is fixedly connected to the mounting base 15, and the first gear 19 meshes with the second gear 20. After the control box 1 is fixed on the pipe, the output shaft of the second motor 18 drives the second gear 20 to rotate, and the meshing of the second gear 20 with the first gear 19 drives the mounting base 15 to rotate, thereby causing the beveling cutter 17 on the mounting base 15 to bevele the pipe.
[0036] It should be noted that in this document, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely 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. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, unless otherwise explicitly specified and limited, the terms "fixed," "installed," "connected," and "linked" should be interpreted broadly. For example, "installed" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a mechanical connection or an electrical connection; "linked" can be a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A beveling machine for processing pipe fittings, characterized in that, include: A control box (1) is fixedly connected to a central column (2), and a first fixing component for fixing the central column (2) inside the pipeline is provided on the central column (2); Two second fixing components are symmetrically arranged on the control box (1) for fixing the central column (2) outside the pipeline; Mounting base (15) is rotatably connected to control box (1). A locking structure (16) is installed on the mounting base (15). A beveling tool (17) is installed inside the locking structure (16). A rotating component for rotating the mounting base (15) is provided on the control box (1).
2. The beveling machine for pipe fitting processing according to claim 1, characterized in that: The first fixed component includes a first motor (3) mounted on a control box (1), and the output shaft of the first motor (3) is equipped with a bidirectional screw (4), and the two ends of the bidirectional screw (4) are respectively threaded with sliders (5).
3. A beveling machine for pipe fitting processing according to claim 2, characterized in that: The central column (2) is provided with a circular array of moving slots (6). Each moving slot (6) is provided with a first clamping plate (7) on its outside. Two hinge seats (9) are fixedly connected to the first clamping plate (7), and the hinge seats (9) are located inside the moving slot (6). A hinge rod (8) is hinged to the hinge seat (9), and the end of the hinge rod (8) away from the hinge seat (9) is hinged to the slider (5).
4. A beveling machine for pipe fitting processing according to claim 1, characterized in that: The second fixing component includes a hydraulic rod (10) installed on the control box (1) and a fixing seat (12) fixedly connected to the control box (1). The telescopic end of the hydraulic rod (10) is fixedly connected to a linkage plate (11), and a linkage rod (13) is fixedly connected to the linkage plate (11). One end of the linkage rod (13) passes through the fixing seat (12) and is fixedly connected to a second clamping plate (14).
5. A beveling machine for pipe fitting processing according to claim 1, characterized in that: The mounting base (15) is annular, and the central post (2) is located in the annular hole of the mounting base (15).
6. A beveling machine for pipe fitting processing according to claim 1, characterized in that: The rotating assembly includes a second motor (18) mounted on the control box (1), the output shaft of the second motor (18) is equipped with a second gear (20), and a first gear (19) is fixedly connected to the mounting base (15), and the first gear (19) meshes with the second gear (20).