Pipe beveler

Abstract

The utility model relates to pipeline processing technical field, concretely relates to a pipeline beveler, clamping mechanism includes U type frame, clamping plate and elevating spare, the clamping plate sets up inside U type frame, and clamping plate includes upper clamping plate and the lower clamping plate located in the lower side of upper clamping plate, the side of upper clamping plate and lower clamping plate all is provided with a plurality of mounting holes, and elevating spare is connected with upper clamping plate, the cutting mechanism includes base, sliding seat, drive assembly and cutter head, and drive assembly sets up at the top of sliding seat, and the output end is connected with cutter head, the side of cutter head near clamping plate is spaced and is provided with T type groove, and cutter head is connected with tool through T type groove. The utility model can adjust the position of tool at will, can install corresponding matched clamping plate according to the pipeline of different diameter specifications simultaneously, realizes the clamping fixation to the pipeline of different diameter specifications, and further realizes the effect that can carry out beveling cutting processing to the pipeline of different diameter.

Description

Technical Field

[0001] This utility model relates to the field of pipe processing technology, specifically to a pipe beveling machine. Background Technology

[0002] Pipe beveling machines are specialized equipment used for beveling the front face of pipes during welding. They use a two-part chuck to clamp the outer diameter of the pipe and drive a rotating cutting tool to bevele the pipe end face. This mechanical cutting method generates a standard angle bevel, ensuring welding quality and efficiency. The beveling design increases the weld contact area, reduces welding deformation and material waste, and is suitable for various materials such as carbon steel, stainless steel, and alloy steel. However, while existing pipe beveling machines can perform beveling on pipe end faces, they have limitations. Their applicability is limited, and their practicality is low. They can only beveling pipes of the same specification and cannot beveling pipes of different diameters. Summary of the Invention

[0003] This utility model addresses the problem that existing pipe beveling machines cannot perform beveling cutting on pipes of different diameters by providing a pipe beveling machine. This pipe beveling machine allows for arbitrary adjustment of the cutter position and can install corresponding clamping plates according to different pipe diameter specifications to achieve clamping and fixing of pipes of different diameter specifications. This enables the beveling cutting of pipes of different diameters, improving the applicability, flexibility, and practicality.

[0004] To achieve the above objectives, the technical solution of this utility model is: a pipe beveling machine, including a support base. The top of the support base is provided with a clamping mechanism and support and cutting mechanisms located on both sides of the clamping mechanism. The clamping mechanism includes a U-shaped frame, a clamping plate, and a lifting component. The clamping plate is disposed inside the U-shaped frame and includes an upper clamping plate and a lower clamping plate located directly below the upper clamping plate. Several mounting holes are provided on one side of both the upper and lower clamping plates. The lifting component is connected to the upper clamping plate. The lifting component can drive the upper clamping plate to move up and down, achieving the effect of clamping or loosening the pipe using the upper and lower clamping plates. Through the mounting holes, other upper and lower clamping plates of different specifications can be installed on the outside of the upper and lower clamping plates respectively, so that the upper and lower clamping plates can match the pipe requiring beveling cutting, achieving the clamping and fixing of the pipe requiring beveling.

[0005] The support mechanism includes a bracket and a lifting support plate mounted on the bracket; the cutting mechanism includes a base, a sliding seat, a drive assembly, and a cutter head. The sliding seat is slidably mounted on the top of the base, and the drive assembly is mounted on the top of the sliding seat with its output end connected to the cutter head. T-slots are spaced apart on the side of the cutter head near the clamping plate, and the cutter head is connected to the cutting tool through these T-slots. The lifting support plate supports the end of the pipe that is not beveling, thus facilitating beveling of the pipe end face by the cutting mechanism. The T-slots allow for arbitrary adjustment of the cutting tool position, enabling the cutting tool to perform beveling on pipes of different diameters.

[0006] Furthermore, the vertical beam of the U-shaped frame is provided with a side sliding groove on its inner side, and both ends of the upper and lower clamping plates are provided with side sliders that match the side sliding grooves. The side sliders are slidably disposed inside the side sliding grooves. The side sliders cooperate with the side sliding grooves to limit the movement of the upper and lower clamping plates, while also guiding the lifting and lowering movement of the upper clamping plate.

[0007] Furthermore, the lifting component is a hydraulic cylinder, which is mounted on the crossbeam of the U-shaped frame. The telescopic end of the hydraulic cylinder passes through the crossbeam of the U-shaped frame and is connected to the upper end of the upper clamping plate. The telescopic movement of the hydraulic cylinder's telescopic end achieves the lifting and lowering motion of the upper clamping plate, thereby enabling the upper and lower clamping plates to either secure or release the pipeline.

[0008] Furthermore, a limit screw is provided at the top of the upper plate, and a limit plate is threadedly connected to the limit screw. A switch bracket is provided at the bottom of the crossbeam of the U-shaped frame, and a limit switch corresponding to the limit plate is provided on the switch bracket. The travel and position of the upper plate are limited by the cooperation between the limit switch and the limit plate.

[0009] Furthermore, both the bottom of the upper clamping plate and the top of the lower clamping plate are provided with arc-shaped grooves, and a plurality of mounting holes are equally spaced around the arc-shaped grooves. The arc-shaped grooves are matched with the pipes that need to be bevel cutting, so that the upper and lower clamping plates can clamp and fix the pipes. Through the function of the mounting holes, the upper clamping plate and the lower clamping plate with smaller arc-shaped groove diameter can be fixed on the lower clamping plate, respectively, so as to achieve clamping and fixing of pipes of different diameter specifications.

[0010] Furthermore, a fixed plate is provided on one side of the upper end of the bracket, and an adjusting screw is rotatably mounted on the fixed plate. A transmission block, which is fixedly connected to the lifting support plate, is driven by the adjusting screw. Rotating the adjusting screw causes the transmission block to drive the lifting support plate to move up and down, and the height of the lifting support plate can be adjusted according to the diameter of the pipe to ensure that the lifting support plate can support the end of the pipe that is not beveled.

[0011] Furthermore, the base is positioned on top of the support, and a worm gear transmission assembly is provided at one end of the base. This worm gear transmission assembly is connected to a push-pull screw, one end of which is connected to a sliding seat. The worm gear transmission assembly can drive the push-pull screw to move, and the push-pull screw can cause the sliding seat to slide on top of the base.

[0012] Furthermore, the top of the base is symmetrically provided with guide grooves, and the bottom of the sliding seat is symmetrically provided with guide sliders that match the guide grooves; the top center of the base is also provided with a mounting groove, in which a guide strip is fixedly installed, and the bottom of the sliding seat is provided with a guide groove corresponding to the guide strip. The guide grooves and guide sliders cooperate to guide the movement of the sliding seat, and the guide strips and guide grooves cooperate to also guide the movement of the sliding seat, while ensuring that the sliding seat moves in a straight line.

[0013] Furthermore, the drive assembly includes a power head and a drive motor. The power head is positioned on top of the sliding seat, and its spindle is connected to the cutter head. The output end of the drive motor is connected to the input end of the power head. Two cutters are symmetrically mounted on the cutter head, and T-blocks matching T-slots are arranged at the bottom of each cutter. The drive motor and power head drive the cutter head to rotate, achieving the effect of the cutter head rotating the cutters to perform beveling machining on the pipe end face.

[0014] Furthermore, a cylindrical wire seat is fixedly installed on the top of the crossbeam of the U-shaped frame. The cylindrical wire seat has a wire-passing hole, and a rotating seat is installed on top of the cylindrical wire seat. A wire conduit is rotatably connected to the rotating seat, and an operating table is fixedly connected to the other end of the wire conduit. The operating table allows the operator to control the beveling machine to perform beveling cutting on the pipe end face.

[0015] The beneficial effects of this utility model through the above technical solution are as follows: This utility model has a reasonable structure and good performance. It allows for arbitrary adjustment of the tool position and can install corresponding clamping plates according to different diameter pipe specifications to achieve clamping and fixing of pipes of different diameter specifications. This enables beveling of pipes of different diameters, improving the applicability, flexibility and practicality.

[0016] The cutting tool of this invention is mounted on the cutter head via a T-slot. The T-slot allows for arbitrary adjustment of the tool's position, enabling beveling of pipes of different diameters. The T-slot serves to limit the tool's movement while also facilitating its movement. When beveling a small-diameter pipe, the tool is moved along the T-slot towards the center of the cutter head; conversely, it is moved away from the center of the cutter head.

[0017] This utility model utilizes mounting holes to allow for the installation of other upper and lower clamping plates of different specifications on the outside of the upper and lower clamping plates, so that the arc-shaped grooves of the upper and lower clamping plates can match the pipes that require beveling and cutting, thereby achieving the clamping and fixing of pipes of different diameter specifications.

[0018] The adjusting screw of the support mechanism of this utility model can drive the lifting support plate to move up and down. The height of the lifting support plate can be adjusted according to the diameter of the pipe to ensure that the lifting support plate can support the end of the pipe that is not beveling, thereby facilitating the beveling of the pipe end face. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a pipe beveling machine according to this utility model. Figure 1 ; Figure 2 This is a schematic diagram of the structure of a pipe beveling machine according to this utility model. Figure 2 ; Figure 3 This is a schematic diagram of the structure of a pipe beveling machine according to this utility model. Figure 3 ; Figure 4 This is a schematic diagram of the clamping mechanism of this utility model; Figure 5 This is a schematic diagram of the upper and lower clamping plates of this utility model; Figure 6 This is a schematic diagram of the support mechanism of this utility model; Figure 7 This is a schematic diagram of the cutting mechanism of this utility model; Figure 8 This is a schematic diagram of the structure of the base and sliding seat connected to the worm gear transmission assembly of this utility model; Figure 9 This is a structural schematic diagram of the base of this utility model; Figure 10 This is a structural schematic diagram of the utility model in use.

[0020] The attached diagram is labeled as follows: 1 is the support base, 2 is the U-shaped frame, 201 is the side sliding groove, 3 is the upper clamping plate, 4 is the lower clamping plate, 5 is the arc groove, 6 is the side slider, 7 is the mounting hole, 8 is the hydraulic cylinder, 9 is the bracket, 10 is the fixing plate, 11 is the adjusting screw, 12 is the lifting support plate, 13 is the transmission block, 14 is the limit screw, 15 is the limit plate, 16 is the switch bracket, 17 is the limit switch, 18 is the base, 19 is the guide groove, 20 is the mounting groove, 21 is the guide bar, 22 is the sliding seat, 23 is the worm gear transmission assembly, 24 is the push-pull screw, 25 is the power head, 26 is the drive motor, 27 is the cutter head, 28 is the T-slot, 29 is the cylindrical wire seat, 30 is the rotating seat, 31 is the wire conduit, and 32 is the operating table. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments: like Figures 1-10 As shown, a pipe beveling machine includes a support base 1. The top of the support base 1 is equipped with a clamping mechanism and support and cutting mechanisms located on either side of the clamping mechanism. The clamping mechanism includes a U-shaped frame 2, a clamping plate, and a lifting component. The clamping plate is disposed inside the U-shaped frame 2 and includes an upper clamping plate 3 and a lower clamping plate 4 located directly below the upper clamping plate 3. Both the upper and lower clamping plates 3 and 4 have several mounting holes 7 on one side. The lifting component is connected to the upper clamping plate 3. In this embodiment, multiple lifting lugs are installed at intervals on the outer side of the support base 1 to facilitate the lifting of the pipe beveling machine. The clamping mechanism clamps and fixes one end of the pipe, while the support mechanism supports the other end of the pipe. The cutting mechanism performs beveling cutting on the end face of the pipe. The lifting component can drive the upper clamping plate 3 to move downwards or upwards, so that the upper clamping plate 3 and the lower clamping plate 4 cooperate to clamp or release the pipe. When beveling the end face of a small-diameter pipe, other small-sized upper clamping plates 3 and lower clamping plates 4 that match the pipe can be bolted to the outside of the upper clamping plate 3 and lower clamping plate 4 through the mounting hole 7.

[0022] The support mechanism includes a bracket 9 and a lifting support plate 12 mounted on the bracket 9. The cutting mechanism includes a base 18, a sliding seat 22, a drive assembly, and a cutter head 27. The sliding seat 22 is slidably mounted on the top of the base 18. The drive assembly is mounted on the top of the sliding seat 22, and its output end is connected to the cutter head 27. The cutter head 27 has T-slots 28 spaced apart on the side near the clamping plate, and the cutter head 27 is connected to a cutting tool through the T-slots 28. In this embodiment, the lifting bracket 12 has an overall "L" shape structure. The lifting support plate 12 can be adjusted to support pipes of different diameters by adjusting its height on the bracket 9. The sliding seat 22 can slide on the base 18 to adjust the position of the drive assembly and the cutter head 27. When the pipe is clamped and fixed using the clamping plate, the sliding seat 22 can move the drive assembly and the cutter head 27 away from the clamping plate, so that the pipe can be clamped and fixed between the upper clamping plate 3 and the lower clamping plate 4. The drive assembly is used to drive the cutter head 27 to rotate, and the cutter head 27 drives the cutter on it to rotate, thereby realizing the beveling cutting of the pipe end face. There are two cutters on the cutter head 27, which are symmetrically installed on the outside of the cutter head 27. The cutter includes a cutter holder and a high-speed steel cutter installed on the outside of the cutter holder. The T-slot 28 can adjust the distance between the two cutters so that the cutters can perform beveling cutting on the end face of pipes of different diameters.

[0023] The U-shaped frame 2 has a side sliding groove 201 on the inner side of its vertical beam. Both ends of the upper clamping plate 3 and the lower clamping plate 4 are provided with side sliders 6 that match the side sliding groove 201. The side sliders 6 are slidably disposed inside the side sliding groove 201. In this embodiment, the side sliders 6 cooperate with the side sliding groove 201, limiting the movement of the upper clamping plate 3 and the lower clamping plate 4 while also guiding the lifting and lowering movement of the upper clamping plate 3.

[0024] The lifting component is a hydraulic cylinder 8, which is mounted on the crossbeam of the U-shaped frame 2. The telescopic end of the hydraulic cylinder 8 passes through the crossbeam of the U-shaped frame 2 and is connected to the upper end of the upper clamping plate 3. In this embodiment, a circular plate is fixedly installed at the middle position of the upper end of the upper clamping plate 3. The telescopic end of the hydraulic cylinder 8 is bolted to the circular plate. The telescopic end of the hydraulic cylinder 8 performs telescopic movements, driving the upper clamping plate 3 to move downward and upward, thereby achieving the clamping and fixing of the pipeline by the upper clamping plate 3 and the lower clamping plate 4.

[0025] The upper clamping plate 3 is provided with a limiting screw 14 at its top, and a limiting plate 15 is threadedly connected to the limiting screw 14. A switch bracket 16 is provided at the bottom of the crossbeam of the U-shaped frame 2, and a limit switch 17 corresponding to the limiting plate 15 is provided on the switch bracket 16. In this embodiment, the limiting plate 15 is threadedly connected to the limiting screw 14, which can adjust the height position of the limiting plate 15 on the limiting screw 14, thereby achieving the effect of adjusting the stroke and the limit height of the upper clamping plate 3. When the limit switch 17 detects the limiting plate 15, the upper clamping plate 3 rises to the limit height position.

[0026] Both the bottom of the upper clamping plate 3 and the top of the lower clamping plate 4 are provided with arc-shaped grooves 5, and a plurality of mounting holes 7 are equally spaced around the arc-shaped grooves 5. In this embodiment, the arc-shaped grooves 5 match the outer diameter of the pipe that needs to be bevel cutting, the purpose of which is to facilitate the clamping and fixing of the pipe by the upper clamping plate 3 and the lower clamping plate 4. Using the mounting holes 7, another set of upper clamping plates 3 and lower clamping plates 4 with smaller arc-shaped groove diameters can be bolted to the outside of the upper clamping plate 3 and the lower clamping plate 4. The arc-shaped grooves 5 of the reinstalled upper clamping plates 3 and lower clamping plates 4 match the pipe that needs to be bevel cutting, thus ensuring that the pipe is clamped and fixed.

[0027] A fixing plate 10 is provided on one side of the upper end of the bracket 9. An adjusting screw 11 is rotatably provided on the fixing plate 10. A transmission block 13, which is fixedly connected to the lifting support plate 12, is connected to the adjusting screw 11. In this embodiment, a handwheel can be installed on the upper end of the adjusting screw 11 to facilitate the rotation of the adjusting screw 11 by the operator. Rotating the adjusting screw 11 causes the transmission block 13 to move up and down, which in turn causes the lifting support plate 12 to move up and down, thereby adjusting the height of the lifting support plate 12 and thus supporting pipes of different diameters. The vertical plate of the bracket 9 has a slotted hole. After adjusting the height of the lifting support plate 12, bolts are passed through the lifting support plate 12 and the slotted hole to fix the lifting support plate 12 and the bracket 9. In addition, the position of the support mechanism installed on the top of the support base 1 can be changed according to the pipe forming after beveling, to ensure that the support mechanism can support the pipe. In this embodiment, the end face of the "L"-shaped pipe is beveled, and the support mechanism supports the other end of the "L"-shaped pipe.

[0028] The base 18 is mounted on top of the support base 1. A worm gear transmission assembly 23 is mounted on one end of the base 18. The worm gear transmission assembly 23 is connected to a push-pull screw 24, one end of which is connected to a sliding seat 22. In this embodiment, the base 18 is bolted to the top of the support base 1. Two bearings with mounting seats are symmetrically mounted on the end of the base 18 away from the clamping plate. The worm of the worm gear transmission assembly 23 is connected to both bearings with mounting seats at both ends to allow the worm to rotate. One end of the worm wheel can be connected to a handwheel or a motor. The worm of the worm gear transmission assembly 23 meshes with the worm wheel, which is connected to the push-pull screw 24. The worm gear transmission assembly 23 drives the push-pull screw 24 to extend and retract, causing the sliding seat 22 to slide on top of the base 18.

[0029] The top of the base 18 is symmetrically provided with guide grooves 19, and the bottom of the sliding seat 22 is symmetrically provided with guide sliders that match the guide grooves 19. A mounting groove 20 is also provided at the middle of the top of the base 18, and a guide strip 21 is fixedly installed within the mounting groove 20. The bottom of the sliding seat 22 is provided with a guide groove corresponding to the guide strip 21. In this embodiment, the guide grooves 19 cooperate with the guide sliders to guide the movement of the sliding seat 22, and the guide strip 21 cooperates with the guide groove to also guide the movement of the sliding seat 22, while ensuring that the sliding seat 22 moves in a straight line.

[0030] The drive assembly includes a power head 25 and a drive motor 26. The power head 25 is located on top of the sliding seat 22, and its spindle is connected to the cutter head 27. The output end of the drive motor 26 is connected to the input end of the power head 25. Two cutters are symmetrically mounted on the cutter head 27, and T-shaped blocks matching the T-slots 28 are provided at the bottom of each cutter. In this embodiment, the drive motor 26 drives the cutter head 27 to rotate via the power head 25. The cutter head 27 then drives the two cutters to rotate, achieving beveling of the pipe end face. When beveling is required on a small-diameter pipe, the cutter is moved along the T-slots 28 towards the center of the cutter head 27; conversely, it is moved away from the center of the cutter head 27. After adjusting the cutter position, the cutter holder is bolted to the cutter head 27.

[0031] A cylindrical wire seat 29 is fixedly installed on the top of the crossbeam of the U-shaped frame 2. A wire hole is opened on the cylindrical wire seat 29. A rotating seat 30 is provided on the top of the cylindrical wire seat 29. A wire tube 31 is rotatably connected to the rotating seat 30. The other end of the wire tube 31 is fixedly connected to the operating table 32. In this embodiment, the operating console 32 can be electrically connected to the drive motor 26 and the hydraulic cylinder 8 via cables. The conduit 31 serves as a cable channel, and the cable hole facilitates the cable passing through the rotating seat 30 and the cylindrical cable holder 29. The rotating seat 30 includes a cylindrical body and a cover. The cylindrical body is bolted to the cylindrical cable holder 29, and the cover is bolted to the cylindrical body. The top of the cover has an opening for the conduit 31 to pass through. The end of the conduit 31 is connected to a limiting circular plate rotatably installed inside the cylindrical body. The diameter of the limiting circular plate is larger than the diameter of the opening. The conduit 31 is rotatably connected to the rotating seat 30, so that the operator can adjust the position of the operating console 32 by rotating the conduit 31, thereby facilitating the operator's control of the operating console 32.

[0032] The working principle of this utility model is as follows: First, a support mechanism is installed on the top of the support base 1 according to the pipe shape to be beveled, ensuring that the support mechanism can support the other end of the pipe that is not to be beveled; when the diameter of the pipe matches the arc groove 5 of the upper clamping plate 3 and the lower clamping plate 4, it is not necessary to install other specifications of upper clamping plates 3 and lower clamping plates 4; when the diameter of the pipe is smaller than the diameter of the arc groove 5 of the upper clamping plate 3 and the lower clamping plate 4, a set of upper clamping plates 3 and lower clamping plates 4 with smaller arc groove diameters are bolted to the outside of the upper clamping plate 3 and the lower clamping plate 4 using the mounting holes 7, and the arc groove 5 of the reinstalled upper clamping plates 3 and lower clamping plates 4 matches the pipe that needs beveled; at the same time, the distance between the two cutters on the cutter head 27 is adjusted so that both cutters move along the T-slot 28 toward the center of the cutter head 27. After adjusting the position of the cutters, the cutter holder is bolted to the cutter head 27 again, thereby ensuring that the cutters can perform beveled cutting on the pipe end face.

[0033] When beveling the pipe end face, the worm gear transmission assembly 23 first drives the push-pull screw 24 to move away from the clamping plate. The push-pull screw 24 pulls the sliding seat 22 away from the clamping plate, and the sliding seat slides on the top of the base 18. Then, the hydraulic cylinder 8 is activated. The extension end of the hydraulic cylinder 8 drives the upper clamping plate 3 to move upward. When the limit switch 17 detects the limit plate 15, the extension end of the hydraulic cylinder 8 stops driving the upper clamping plate 3 to move upward. Then, the end of the pipe that needs beveling is placed in the arc groove 5 of the lower clamping plate 4, and the other end is placed on the lifting support plate 12. Then, the hydraulic cylinder is activated again. 8. The extension end of the hydraulic cylinder 8 drives the upper clamping plate 3 to move downward. The upper clamping plate 3 and the lower clamping plate 4 clamp and fix the pipe through their own arc grooves 5. Then, the worm gear transmission assembly 23 drives the push-pull screw 24 to move towards the pipe end face. The push-pull screw 24 pulls the sliding seat 22 towards the pipe end face. The sliding seat 22 drives the drive assembly to move towards the pipe end face until the tool contacts the pipe end face. The drive motor 26 is turned on. The drive motor 26 drives the cutter head 27 to rotate through the power head 25. The cutter head 27 drives the tool to rotate, realizing the beveling cutting of the pipe end face.

[0034] The embodiments described above are merely preferred embodiments of the utility model and are not intended to limit the scope of the utility model. Therefore, all equivalent changes or modifications made to the technical solutions described in the scope of the utility model patent application should be included within the scope of the utility model patent application.

Claims

1. A pipe beveling machine, comprising a support base (1), characterized in that, The top of the support base (1) is provided with a clamping mechanism and a support mechanism and a cutting mechanism located on both sides of the clamping mechanism. The clamping mechanism includes a U-shaped frame (2), a clamping plate and a lifting component. The clamping plate is located inside the U-shaped frame (2). The clamping plate includes an upper clamping plate (3) and a lower clamping plate (4) located directly below the upper clamping plate (3). Several mounting holes (7) are opened on one side of the upper clamping plate (3) and the lower clamping plate (4). The lifting component is connected to the upper clamping plate (3). The support mechanism includes a bracket (9) and a lifting support plate (12) mounted on the bracket (9); the cutting mechanism includes a base (18), a sliding seat (22), a drive assembly and a cutter head (27). The sliding seat (22) is slidably mounted on the top of the base (18). The drive assembly is mounted on the top of the sliding seat (22) and its output end is connected to the cutter head (27). The cutter head (27) has T-slots (28) spaced apart on the side near the clamping plate. The cutter head (27) is connected to a cutting tool through the T-slots (28).

2. A pipe beveling machine according to claim 1, characterized in that, The U-shaped frame (2) has a side sliding groove (201) on the inner side of the vertical beam. Both ends of the upper plate (3) and the lower plate (4) are provided with side sliders (6) that match the side sliding groove (201). The side sliders (6) are slidably disposed inside the side sliding groove (201).

3. A pipe beveling machine according to claim 2, characterized in that, The lifting component is a hydraulic cylinder (8), which is mounted on the crossbeam of the U-shaped frame (2). The telescopic end of the hydraulic cylinder (8) passes through the crossbeam of the U-shaped frame (2) and is connected to the upper end of the upper plate (3).

4. A pipe beveling machine according to claim 3, characterized in that, The upper plate (3) is provided with a limit screw (14) at the top, and a limit plate (15) is threadedly connected to the limit screw (14). A switch bracket (16) is provided at the bottom of the crossbeam of the U-shaped frame (2), and a limit switch (17) corresponding to the limit plate (15) is provided on the switch bracket (16).

5. A pipe beveling machine according to claim 1, characterized in that, The bottom of the upper plate (3) and the top of the lower plate (4) are provided with arc-shaped grooves (5), and a number of mounting holes (7) are arranged at equal intervals around the arc-shaped grooves (5).

6. A pipe beveling machine according to claim 1, characterized in that, A fixing plate (10) is provided on one side of the upper end of the bracket (9). An adjusting screw (11) is rotatably provided on the fixing plate (10). A transmission block (13) that is fixedly connected to the lifting support plate (12) is connected to the adjusting screw (11).

7. A pipe beveling machine according to claim 1, characterized in that, The base (18) is set on the top of the support (1). One end of the base (18) is provided with a worm gear transmission assembly (23). The worm gear transmission assembly (23) is connected to a push-pull screw (24). One end of the push-pull screw (24) is connected to the sliding seat (22).

8. A pipe beveling machine according to claim 7, characterized in that, The top of the base (18) is symmetrically provided with guide grooves (19), and the bottom of the sliding seat (22) is symmetrically provided with guide sliders that match the guide grooves (19); the top middle position of the base (18) is also provided with an installation groove (20), a guide strip (21) is fixedly provided in the installation groove (20), and the bottom of the sliding seat (22) is provided with a guide groove corresponding to the guide strip (21).

9. A pipe beveling machine according to claim 1, characterized in that, The drive assembly includes a power head (25) and a drive motor (26). The power head (25) is located on the top of the sliding seat (22) and its spindle is connected to the cutter head (27). The output end of the drive motor (26) is connected to the input end of the power head (25). There are two cutters, which are symmetrically installed on the cutter head (27). The bottom of the cutter is provided with T-shaped blocks that match the T-slots (28).

10. A pipe beveling machine according to claim 1, characterized in that, A cylindrical wire seat (29) is fixedly installed on the top of the crossbeam of the U-shaped frame (2). A wire hole is opened on the cylindrical wire seat (29). A rotating seat (30) is installed on the top of the cylindrical wire seat (29). A wire tube (31) is rotatably connected to the rotating seat (30). An operating table (32) is fixedly connected to the other end of the wire tube (31).

Images