A round tube beveling machine

Abstract

The present invention discloses a circular pipe beveling machine, which includes a frame, a fixing member, a rotating seat, a driving device and a cutter; the fixing member is arranged on the frame and is used for fixing the circular pipe to be processed with a bevel; the rotating seat is rotatably arranged on the frame, and a locking member is arranged on the frame for locking the rotating seat in the use state; the driving device is installed on the rotating seat and can rotate relative to the frame along with the rotation of the rotating seat, and is used for adjusting the angle between the driving device and the circular pipe to be processed with a bevel in the use state; the cutter is installed on the driving device and is driven by the driving device to rotate, and is used for processing a bevel on the circular pipe. The present invention can adjust the included angle between the cutter and the circular pipe as needed, so as to process a bevel with a suitable angle on the circular pipe. Moreover, the present invention can adjust the size of the notch, so that the present invention is suitable for fixing circular pipes with different diameters. By matching with cutters of corresponding diameters, bevels can be processed on circular pipes with different diameters, thus overall improving the versatility of the present invention.

Description

Technical Field

[0001] The present invention relates to a circular pipe beveling machine, belonging to the technical field of circular pipe processing equipment. Background Art

[0002] When circular pipes are connected to form an angular connection such as a T-shaped or Y-shaped structure, etc., a bevel needs to be opened at the end or connection part of the circular pipe. As Figure 6 shown, so that the circular pipes can be better connected. To open a bevel on a circular pipe, it can be made by means of manual cutting or grinding, with low efficiency. To solve the problem of low efficiency in opening bevels on circular pipes, a beveling machine was set up and manufactured.

[0003] The Chinese patent application for invention with the application publication number CN110369798A discloses a circular pipe cutting and beveling machine tool, which includes a driving mechanism, a clamping mechanism, a supporting mechanism, a moving mechanism and a cutting device; the clamping mechanism is connected to the driving seat of the driving mechanism, the supporting mechanism is located at the other end of the driving seat and connected to the machine frame, the moving mechanism is located on one side of the machine frame, and the cutting device is connected to the moving mechanism; the driving seat and the clamping mechanism are on the same axis, and the cutting device is located on one side between the clamping mechanism and the supporting mechanism. The above beveling machine is suitable for processing bevels at the edge of the cutting part of a circular pipe, but not suitable for processing bevels at any part of the circular pipe. Therefore, it is not suitable for the angular connection of circular pipes. Moreover, the plane of its cutting tool is perpendicular to the axis of the circular pipe. Since the cutting tool can only move in the front-back direction and left-right direction, the included angle between the bevel processed by it and the axis of the circular pipe is specific and different bevels with different angles cannot be processed according to actual needs, with poor versatility. Summary of the Invention

[0004] The purpose of the present invention is to provide a circular pipe beveling machine to solve the technical defects that the beveling machine in the prior art cannot process bevels with arbitrary angles according to the connection angle of circular pipes and is not suitable for angular connection of circular pipes.

[0005] To solve the above problems, the technical solution adopted by the present invention is as follows: A round pipe beveling machine includes a frame, a fixing member, a rotating seat, a driving device, and a cutter; the fixing member is arranged on the frame and is used to fix the round pipe to be beveled in the use state; the rotating seat is rotatably arranged on the frame, and a locking member is arranged on the frame to lock the rotating seat in the use state; the driving device is installed on the rotating seat and can rotate relative to the frame as the rotating seat rotates, and is used to adjust the angle between the driving device and the round pipe to be beveled in the use state; the cutter is installed on the driving device and is driven by the driving device to rotate, and is used to machine a bevel on the round pipe. In the present invention, the driving device is installed on the rotating seat and can rotate synchronously with the rotation of the rotating seat. By rotating the rotating seat, the included angle between the driving device and the round pipe is adjusted, so as to adjust the included angle between the cutter and the round pipe. Therefore, a bevel with a suitable angle can be machined on the round pipe according to the connection angle of the round pipe, the angle range of bevel machining is increased, and the versatility of the present invention is improved. An included angle is provided between the cutter and the round pipe in the present invention, and different bevels can be machined on the round pipe as required, so that the round pipes can be connected at any angle.

[0006] As a further improvement of the invention, it further includes a driving device mounting plate and a driving handle; the driving device mounting plate is installed on the rotating seat and forms a horizontal moving pair with the rotating seat plate, and the driving device is installed on the driving device mounting plate; the driving handle is used to push the driving device mounting plate to move on the rotating seat in the use state. In the present invention, through the relative sliding of the driving device mounting plate and the rotating seat, when machining a bevel on the round pipe, the driving device installed on the driving device mounting plate and the cutter installed on the driving device can move horizontally to realize the feeding of the cutter, and the handle can facilitate the operation of the horizontal movement of the driving device mounting plate during use.

[0007] As a further improvement of the invention, the driving handle includes a push rod and a connecting rod; the bottom end of the push rod is rotatably arranged on the rotating seat; the lower end of the connecting rod is rotatably installed on the driving device mounting plate, and the upper end of the connecting rod is rotatably connected to the push rod. The connecting rod rotates with the rotation of the push rod to push the driving device mounting plate to move horizontally on the rotating seat. In the present invention, the relative rotation of the push rod and the rotating seat is used to push the connecting rod to rotate, and the connecting rod is used to push the driving device mounting plate to move horizontally on the rotating seat.

[0008] As a further improvement of the invention, two sets of fixing seats A are arranged on the rotating seat. Each set of fixing seats A is composed of two fixing seat A units. A guide rod is connected between the two fixing seat A units of each set of fixing seats A. The guide rods of the two fixing seats A are parallel. Two fixing seats B are arranged at the bottom of the driving device mounting plate. The two fixing seats B are respectively sleeved on the two guide rods. And a spring is sleeved on the guide rod on the side close to the tool. The two ends of the spring are respectively connected with the fixing seat A and the fixing seat B. When the driving device mounting plate moves towards the direction of the circular tube, the spring is compressed. When the driving handle is released, the spring stretches to drive the driving device mounting plate to move away from the circular tube. The two fixing seats A in the present invention are used, on the one hand, to install the guide rod to guide and limit the movement of the driving device mounting plate. On the other hand, the two fixing seats A cooperate with the fixing seat B to limit the moving distance of the fixing seat B, so that the fixing seat B can only move between the two fixing seats A, thereby limiting the moving distance of the driving device mounting plate, that is, limiting the moving distance of the tool.

[0009] As a further improvement of the invention, the fixing member includes a support column and a clamping member; the number of support columns is two, and the bottom ends of the two support columns are respectively fixedly connected to the frame. A notch is arranged on the support column for cooperating with the circular tube of the groove to be machined in the use state; the clamping member is slidably arranged on the frame and slides relative to the frame between the two support columns for pressing the circular tube in the middle of the groove to be machined into the notch on the support column in the use state. In the present invention, a notch is arranged on the support column to limit the circular tube from one side of the circular tube, and the clamping member limits the circular tube from the other side of the circular tube and presses the circular tube into the notch to realize the fixation of the circular tube.

[0010] As a further improvement, it further includes a slider. An installation groove is opened on the support column on the side close to the driving device. The bottom of the installation groove is inclined downward on the side close to the driving device. And a chute penetrating the bottom end of the support column is opened downward at the bottom of the installation groove. The slider is arranged in the installation groove and forms a vertical moving pair with the support column. The bottom end of the slider is inclined downward on the side away from the driving device. The notch for cooperating with the circular tube is composed of the inclined surface at the bottom of the installation groove and the inclined surface at the bottom of the slider. A lifting screw is arranged on the upper part of the support column. The lifting screw is in threaded cooperation with the support column, and its bottom end is rotatably connected to the top end of the slider. The lifting screw rotates relative to the support column to drive the slider to move up and down to adjust the size of the notch. In the present invention, by arranging the slider, the size of the notch is adjusted by the vertical movement of the slider. When the slider moves upward, the distance between its bottom end and the lower surface of the installation groove increases, and at this time the notch limit increases. When the slider moves downward, the distance between the bottom end of the slider and the lower surface of the installation groove decreases, and the notch decreases accordingly. The increase and decrease of the notch in the present invention can be applied to the fixation of circular tubes with different diameters, thereby improving the versatility of the present invention.

[0011] As a further improvement of the invention, the clamping member includes a moving frame and a flexible member; the moving frame can move horizontally relative to the machine frame; both the upper and lower ends of the flexible member are connected to the moving frame. When the moving frame moves horizontally relative to the machine frame away from the driving device, the flexible member is pulled to fix the round tube in the notch. In the present invention, the moving frame of the clamping member moves horizontally, pulling the flexible member to move. The flexible member holds the round tube from the side away from the notch, preventing the round tube from moving in the direction of detaching from the notch, thus achieving the effect of fixing the round tube. The flexible member in the present invention deforms when fixing the round tube, increasing the contact area with the round tube and playing a role in protecting the round tube.

[0012] As a further improvement of the invention, the moving frame includes an upper pull rod, a lower pull rod, a connecting block and a push-pull screw; an upper connecting member is fixed at one end of the upper pull rod close to the driving device, and the upper end of the flexible member is connected to the upper connecting member. The upper pull rod passes through the upper part of the column fixed on the machine frame and can move horizontally relative to the column; a lower connecting member is fixed at one end of the lower pull rod close to the driving device, and the lower end of the flexible member is connected to the lower connecting member. The lower pull rod passes through the lower part of the column and can move horizontally relative to the column; the upper and lower parts of the connecting block are respectively fixedly connected to the ends of the upper pull rod and the lower pull rod away from the driving device; the push-pull screw passes through both sides of the connecting block and is in threaded cooperation with the connecting block. The push-pull screw is parallel to the upper pull rod, and one end of the push-pull screw is rotatably connected to the column. Rotating the push-pull screw is used to drive the connecting block, the upper pull rod, the lower pull rod and the flexible member to move horizontally. In the present invention, the upper pull rod and the lower pull rod move relative to the column, pulling the upper connecting member, the lower connecting member and the flexible member to move. The threaded cooperation between the push-pull screw and the column converts its rotation into horizontal movement to pull or push the connecting block and the upper pull rod and the lower pull rod fixedly connected to the connecting block to move horizontally synchronously, realizing the movement of the entire moving frame.

[0013] As a further improvement of the invention, the upper connecting member and the lower connecting member have the same structure, both being "U"-shaped with the opening facing the driving device side. The flexible member is one or more chains. The upper end of the chain is connected to the upper connecting member by an upper connecting rod, and the lower end of the chain is connected to the lower connecting member by a lower connecting rod. In the present invention, the "U"-shaped opening structure of the upper connecting member and the lower connecting member facilitates the connection with the flexible member.

[0014] As a further improvement of the invention, the rotating seat is rotatably connected to the frame by a rotating shaft. An arc groove penetrating the upper and lower parts is formed on the rotating seat, and the center of the arc groove is located on the center line of the rotating shaft. A locking bolt is fixed on the frame. The locking bolt is arranged in the arc groove and passes through the frame downward. When the rotating seat rotates relative to the frame, the locking bolt rotates relative to the rotating seat in the arc groove. The locking member is arranged on the locking bolt and is in threaded cooperation with the locking bolt. In the invention, the locking member is arranged at the bottom end of the locking bolt, so that the rotating shaft can be fixed after the rotating seat rotates to a set angle, thereby realizing the overall fixation of the rotating seat. The center of the arc groove is located on the center line of the rotating shaft, ensuring the normal rotation of the rotating seat.

[0015] In summary, the beneficial effects of the present invention are as follows: The present invention can adjust the angle between the tool and the round tube as needed, so as to process a bevel with a suitable angle on the round tube. In addition, the present invention can adjust the size of the notch, making the present invention suitable for the fixation of round tubes with different diameters. By cooperating with tools with corresponding diameters, bevels can be processed on round tubes with different diameters, improving the versatility of the present invention as a whole. The present invention also has the advantages of simple structure and convenient fixation of round tubes. Brief Description of the Drawings

[0016] Figure 1 is the front view of the present invention.

[0017] Figure 2 is the left view of the present invention.

[0018] Figure 3 is the right view of the present invention.

[0019] Figure 4 is the three-dimensional structure schematic diagram of the present invention.

[0020] Figure 5 is the three-dimensional structure schematic diagram of the present invention from another angle.

[0021] Figure 6 is the schematic diagram of the bevel at the joint of the round tubes.

[0022] Wherein: 1. Frame; 2. Fixing member; 3. Rotating seat; 4. Locking member; 5. Driving device; 6. Tool; 7. Driving device mounting plate; 8. Driving handle; 9. Push rod; 10. Link rod; 11. Fixing seat A; 12. Guide rod; 13. Fixing seat B; 14. Spring; 15. Support column; 16. Notch; 17. Clamping member; 18. Slide block; 19. Lifting screw; 20. Moving frame; 21. Flexible member; 22. Upper pull rod; 23. Upper connecting member; 24. Column; 25. Lower pull rod; 26. Lower connecting member; 27. Connecting block; 28. Push-pull screw; 29. Rotating shaft; 30. Arc groove; 31. Locking bolt; 32. Upper support plate; 33. Lower support plate; 34. Connecting column; 35. Poking rod. Detailed implementation mode

[0023] The following further describes the upper body implementation mode of the present invention in conjunction with the accompanying drawings.

[0024] As Figures 1 to 5 The shown circular pipe beveling machine includes a frame 1, a fixing member 2, a rotating seat 3, a driving device 5 and a cutter 6. The frame includes an upper support plate 32, a lower support plate 33 and a connecting column 34. The upper support plate 32 and the lower support plate 33 are parallel and both parallel to the horizontal plane. The top and bottom ends of the connecting column 34 are respectively welded and fixed to the upper support plate 32 and the lower support plate 33. Among them, the lower support plate 33 is rectangular. The upper support plate 32 is used to be fixed to a fixed object in the use state. For example, the upper support plate 32 is detachably installed on the support platform by bolts to fix the whole of the present invention. The connecting column 34 in the present invention can be made of a circular pipe, and its hollow structure can effectively reduce the weight of the whole of the present invention. The fixing member 2 in the present invention is arranged on the upper support plate 32 of the frame 1 and is used to fix the circular pipe to be processed with a bevel in the use state and make the circular pipe to be processed with a bevel in a horizontal state. The rotating seat 3 is rotatably arranged on the upper support plate 32 of the frame 1, and a locking member 4 is arranged below the upper support plate 32 of the frame 1. The locking member 4 is used to lock the rotating seat 3 in the use state so that when a bevel is processed on the circular pipe to be processed, the rotating seat 3 is fixed relative to the upper support plate 32. The driving device 5 is installed on the rotating seat 3 and can rotate relative to the frame 1 as the rotating seat 3 rotates, and is used to adjust the angle between the driving device 5 and the circular pipe to be processed with a bevel in the use state. The cutter 6 in the present invention is installed on the driving device 5 and is driven to rotate by the driving device 5 and is used to process a bevel on the circular pipe. In the present invention, the rotating seat 3 rotates relative to the frame 1. By adjusting the angle between the driving device 5 and the circular pipe to be processed, the angle between the cutter 6 and the circular pipe to be processed is adjusted, so as to process the required bevel on the circular pipe. The driving device 5 in the present invention is preferably a motor. The cutter 6 is installed on the output shaft of the motor and is driven to rotate by the rotation of the motor. The cutter 6 in the present invention is a hollow drill bit, such as the hollow drill bit disclosed in the Chinese utility model patent with the authorization publication number CN216266598U.

[0025] In order to realize the tool feed during the processing of the bevel on the circular pipe, the present invention is provided with a driving device mounting plate 7 and a driving handle 8. The driving device mounting plate 7 is mounted on the rotating seat 3 and forms a horizontal moving pair with the rotating seat 3. The driving device 5 is mounted on the driving device mounting plate 7. The driving device mounting plate 7 in the present invention is a rectangular plate. Through the horizontal movement of the driving device mounting plate 7 and the rotating seat 3, during the processing, the driving device mounting plate 7 moves towards the direction of the circular pipe, so that the driving device 5 and the tool 6 move synchronously towards the direction of the circular pipe, so as to achieve the feed of the tool 6 during the processing. The driving handle 8 in the present invention is used to push the driving device mounting plate 7 to move on the rotating seat 3 in the use state. The driving handle 8 includes a push rod 9 and a connecting rod 10. The bottom end of the push rod 9 is rotatably arranged on the rotating seat 3 by a rotating pin. The length of the push rod 9 can be set so that when it is in the vertical state, the height of the top end exceeds the height of the highest point of the driving device 5. For example, in the present invention, the height of the push rod 9 is set to three times the height of the driving device 5. Preferably, a fixing block is fixedly arranged (such as welded and fixed) at the bottom of one side of the rotating seat 3 in the present invention. The bottom end of the push rod 9 is rotatably connected to the fixing block. The length direction of the rotating pin for installing the push rod 9 is perpendicular to the length direction of the driving device 5. The lower end of the connecting rod 10 in the present invention is rotatably installed on the driving device mounting plate 7 by a rotating pin. Preferably, a rectangular connecting plate is fixedly arranged on one side of the driving device mounting plate 7 close to the tool 6 in the present invention. The rotating pin connecting the connecting rod 10 is connected to the connecting plate. The upper end of the connecting rod 10 is rotatably connected to the middle and lower part of the push rod 9. One end of the connecting rod 10 used for connecting with the push rod 9 in the present invention is always inclined upwards. The connecting rod 10 rotates with the rotation of the push rod 9 to push the driving device mounting plate 7 to move horizontally on the rotating seat 3.

[0026] The specific structure for the present invention to realize the relative sliding between the driving device mounting plate 7 and the rotating seat 3 is as follows: Two groups of fixing seats A11 are arranged on the rotating seat 3. Each group of fixing seats A11 is composed of two fixing seat A units. A guiding rod 12 is connected between the two fixing seat A units of each group of fixing seats A11. And the distance between the fixing seat A units of the two groups of fixing seats A11 is equal. The guiding rods 12 of the two fixing seats A11 are parallel. Two fixing seats B13 are arranged at the bottom of the driving device mounting plate 7. The two fixing seats B13 are respectively sleeved on the two guiding rods 12. And a spring 14 is sleeved on the side of the guiding rod 12 close to the tool 6. The two ends of the spring 14 are respectively connected to the fixing seat A11 and the fixing seat B13. When the driving device mounting plate 7 moves towards the direction of the circular pipe (i.e., when processing the bevel on the circular pipe); the fixing seat B13 moves to compress the spring 14, and the spring 14 contracts to store energy. And when the driving handle 8 is released after the processing is completed, the spring 14 elongates to release energy and drives the driving device mounting plate 7 to move in the direction away from the circular pipe, so that the tool 6 moves in the direction away from the circular pipe, without the need to pull the push rod 9 to separate the tool 6 from the circular pipe.

[0027] The fixing member 2 in the present invention includes a support column 15 and a clamping member 17. The number of support columns 15 is two, and the bottoms of the two support columns 15 are respectively fixedly connected to the machine frame 1. For example, bolts that pass upward through the upper support plate 32 and are threadedly engaged with the bottoms of the support columns 15 are used to detachably mount the support columns 15 on the upper support plate 32, realizing the fixed connection between the support columns 15 and the machine frame 1. A notch 16 is provided on the support column 15, and this notch 16 faces the side of the tool 6 and is used to cooperate with the round tube of the groove to be machined in the use state; the clamping member 17 in the present invention is slidably arranged on the machine frame 1 and slides relative to the machine frame 1 at a position between the two support columns 15. The clamping member 17 slides horizontally and moves toward or close to the side of the tool. The horizontal sliding of the clamping member 17 is used to press the round tube of the groove to be machined against the notch 16 on the support column 15 from the middle in the use state, fixing the round tube with the groove machined, and preventing the round tube from shaking during the machining process and affecting the machining accuracy.

[0028] In order to adjust the size of the notch 16 to adapt to the machining of round tubes with different diameters, the present invention is provided with a slider 18. For the convenience of installing the slider 18, the present invention opens an installation groove on one side of the support column 15 close to the driving device 5. Among them, the bottom of the installation groove is inclined downward on the side close to the driving device 5, and a chute penetrating the bottom end of the support column 15 is opened downward at the bottom of the installation groove. The width of this chute is greater than or equal to the width of the slider 18. The present invention preferably sets the width of the chute to be slightly greater than the width of the slider 18. The slider 18 is arranged in the installation groove and forms a vertical moving pair with the support column 15. The present invention is provided with a guide rail along the vertical direction on the vertical part of the chute. This guide rail can be detachably installed on the support column 15 by bolts. The slider 18 is slidably engaged with the guide rail to guide the movement of the slider 18 and ensure that the slider 18 moves in the vertical direction. Among them, the bottom end of the slider 18 is inclined downward on the side far from the driving device. The notch 16 for cooperating with the round tube is formed by the inclined surface at the bottom of the installation groove and the inclined surface at the bottom of the slider 18. The present invention preferably sets the included angle between the upper surface and the lower surface of the notch 16 to be 90 degrees. For the convenience of adjusting the vertical movement of the slider 18, the present invention is provided with a lifting screw 19 on the upper part of the support column 15. The lifting screw 19 is threadedly engaged with the support column 15, and the bottom end of the lifting screw 19 is rotatably connected to the top end of the slider 18. This rotational connection method itself is prior art and will not be elaborated in the present invention. When the lifting screw 19 rotates relative to the support column 15, its rotation with the support column 15 is converted into vertical movement with the support column 15, which is used to drive the slider 18 to move up and down to adjust the size of the notch 16. When the slider 18 in the present invention moves upward, the opening of the notch 16 becomes larger to be suitable for fixing round tubes with larger diameters, and when the slider 18 moves downward, the opening of the notch 16 decreases, being more suitable for fixing round tubes with smaller diameters.

[0029] The clamping member 17 in the present invention includes a moving frame 20 and a moving frame 20. The moving frame 20 in the present invention can move horizontally relative to the machine frame 1. Both the upper and lower ends of the flexible member 21 are connected to the moving frame 20. When the moving frame 20 moves relative to the machine frame 1 in a direction away from the driving device 5, the flexible member 21 is pulled to fix the circular tube in the notch 16. When the moving frame 20 moves in a direction close to the driving device 5, the circular tube fixed in the notch 16 becomes loose, and the circular tube with a bevel groove processed can be taken out from the notch 16. The moving frame 20 in the present invention includes an upper pull rod 22, a lower pull rod 25, a connecting block 27, and a push-pull screw rod 28. Both the upper pull rod 22 and the lower pull rod 25 are round rods. An upper connecting member 23 is fixed at one end of the upper pull rod 22 close to the driving device 5. The upper end of the flexible member 21 is connected to the upper connecting member 23. The upper pull rod 22 passes through both sides of the upper part of the column 24 fixed on the machine frame 1 and can move horizontally relative to the column 24. A lower connecting member 26 is fixed at one end of the lower pull rod 25 close to the driving device 5. The lower end of the flexible member 21 is connected to the lower connecting member 26. The lower pull rod 25 passes through both sides of the lower part of the column 24 and can move horizontally relative to the column 24. The connecting block 27 is a rectangular block. The upper and lower parts of the connecting block 27 are respectively welded and fixed to one ends of the upper pull rod 22 and the lower pull rod 25 away from the driving device 5. The push-pull screw rod 28 passes through both sides of the connecting block 27 and is in threaded cooperation with the connecting block 27. The push-pull screw rod 28 is parallel to both the upper pull rod 22 and the lower pull rod 25, and the push-pull screw rod 28 is located between the upper pull rod 22 and the lower pull rod 25. In the optimal embodiment of the present invention, the upper pull rod 22 and the lower pull rod 25 are symmetrically arranged on the upper and lower sides of the push-pull screw rod 28. One end of the push-pull screw rod 28 is rotatably connected to the column 24. This rotational connection method is also prior art and will not be described in detail in the present invention. The push-pull screw rod 28 in the present invention rotates relative to the column 24 and converts its rotation into horizontal movement relative to the column 24 to drive the connecting block 27, the upper pull rod 22, the lower pull rod 25, and the flexible member 21 to move horizontally. The structures of the upper connecting member 23 and the lower connecting member 26 in the present invention are the same, both being in a "U" shape with the opening facing the driving device 5 side. The flexible member 21 is one or more chains. In the preferred embodiment of the present invention, the flexible member 21 is set as three chains arranged in parallel. The upper end of the chain is connected to the upper connecting member 23 by an upper connecting rod, and the lower end of the chain is connected to the lower connecting member 26 by a lower connecting rod. The upper connecting member 23 in the present invention is welded and fixed to the upper pull rod 22, and the lower connecting member 26 is welded and fixed to the lower pull rod 25. When in use, the upper pull rod 22 and the lower pull rod 25 move in a direction away from the circular tube, pulling the chain to move in a direction away from the circular tube, so that the chain pulls the circular tube from between the two notches 16 and presses the circular tube in the notch 16 to realize the fixation of the circular tube.

[0030] In the present invention, the rotating seat 3 is rotatably connected to the upper support plate 32 of the frame 1 by a rotating shaft 29. The locking member 4 in the present invention is a locking block, and a lever 35 is fixedly welded to the locking block. During use, grasping the lever 35 can rotate the locking block to press the locking block against the upper support plate 32, locking the rotating seat 3 to the upper support plate 32. When the locking block is loosened, the rotating seat 3 and the upper support plate 32 become loose, and the rotation of the rotating seat 3 can be adjusted. In the present invention, an arc groove 30 penetrating the upper and lower parts of the rotating seat 3 is provided. The center of the arc groove 30 is located on the center line of the rotating shaft 29. A locking bolt 31 is fixed on the upper support plate 32 of the frame 1. The locking bolt 31 passes through the arc groove 30 and then passes downward through the upper support plate 32. The locking member 4 is in threaded cooperation with the bottom of the locking bolt 31. By screwing the locking member 4, the rotating seat 3 is pressed against the upper support plate 32 by the locking member 4 and the locking bolt 31, realizing the fixation of the rotating seat 3. When the rotating seat 3 needs to be rotated, loosen the locking member 4 to make the rotating seat 3 and the upper support plate 32 loose.

[0031] During the use of the present invention, first rotate the push-pull screw 28 to push the upper pull rod 22 and the lower pull rod 25 in the direction close to the driving device 5. The chain moves in the same direction accordingly. Place the round pipe to be grooved on the upper pull rod 22 and the lower pull rod 25, and make the notch 16 and the chain located on both sides of the round pipe respectively. Then rotate the push-pull screw 28 to pull in the direction close to the driving device 5 until the chain tightens the round pipe and fixes the round pipe in the notch 16. Then adjust the angle of the rotating seat 3 according to the position and angle of the groove to be machined on the round pipe. Then push the push rod 9 to feed the cutter 6 forward to machine a groove on the round pipe. Then loosen the push rod 9, and the driving device mounting plate 7 is bounced back to its original position by the spring 14 to complete the machining of the groove on the round pipe.

[0032] Parts not specifically described in the above instructions are all prior art or can be realized by prior art. Moreover, the specific implementation cases described in the present invention are only the preferred implementation cases of the present invention, and are not used to limit the implementation scope of the present invention. That is, equivalent changes and modifications made according to the content of the scope of the present invention patent should be regarded as the technical scope of the present invention.

Claims

1. A circular pipe beveling machine, comprising a frame (1), characterized in that: it further includes a fixing member (2), a rotating seat (3), a driving device (5) and a cutter (6); the fixing member (2) is arranged on the frame (1) and is used to fix the circular pipe to be beveled in the use state; the rotating seat (3) is rotatably arranged on the frame (1), and a locking member (4) is arranged on the frame (1) and is used to lock the rotating seat (3) in the use state; the driving device (5) is installed on the rotating seat (3) and can rotate relative to the frame (1) along with the rotation of the rotating seat (3), and is used to adjust the angle between the driving device (5) and the circular pipe to be beveled in the use state; the cutter (6) is installed on the driving device (5) and is driven by the driving device (5) to rotate, and is used to machine a bevel on the circular pipe; the fixing member (2) includes support columns (15), clamping members (17) and sliders (18); the number of the support columns (15) is two, the bottom ends of the two support columns (15) are respectively fixedly connected to the frame (1), notches (16) are arranged on the support columns (15) and are used to cooperate with the circular pipe to be beveled in the use state; the clamping members (17) are slidably arranged on the frame (1) and slide relative to the frame (1) between the two support columns (15), and are used to press the circular pipe to be beveled from the middle into the notches (16) on the support columns (15) in the use state; on one side of the support column (15) close to the driving device (5), an installation groove is formed, the bottom of the installation groove is inclined downward on the side close to the driving device (5), and a chute penetrating the bottom end of the support column (15) is formed downward at the bottom of the installation groove. The slider (18) is arranged in the installation groove and forms a vertical moving pair with the support column (15). The bottom end of the slider (18) is inclined downward on the side far from the driving device, and the notch (16) for cooperating with the circular pipe is formed by the inclined surface at the bottom of the installation groove and the inclined surface at the bottom of the slider (18). A lifting screw rod (19) is arranged on the upper part of the support column (15), the lifting screw rod (19) is in threaded cooperation with the support column (15), its bottom end is rotatably connected to the top end of the slider (18), and the lifting screw rod (19) rotates relative to the support column (15) and is used to drive the slider (18) to move up and down to adjust the size of the notch (16); the clamping member (17) includes a moving frame (20) and a flexible member (21); the moving frame (20) can move horizontally relative to the frame (1); the upper and lower ends of the flexible member (21) are both connected to the moving frame (20), and the moving frame (20) moves relative to the frame (1) in a direction away from the driving device (5), and pulls the flexible member (21) to fix the circular pipe in the notch (16).

2. The circular pipe beveling machine according to claim 1, characterized in that: it further includes a driving device mounting plate (7) and a driving handle (8); the driving device mounting plate (7) is installed on the rotating seat (3) and forms a horizontal moving pair with the rotating seat (3), and the driving device (5) is installed on the driving device mounting plate (7); the driving handle (8) is used to push the driving device mounting plate (7) to move on the rotating seat (3) in the use state.

3. The round tube beveling machine according to claim 2, characterized in that: The driving handle (8) includes a push rod (9) and a connecting rod (10); the bottom end of the push rod (9) is rotatably arranged on the rotating seat (3); the lower end of the connecting rod (10) is rotatably installed on the driving device mounting plate (7), the upper end of the connecting rod (10) is rotatably connected to the push rod (9), and the connecting rod (10) rotates with the rotation of the push rod (9) to push the driving device mounting plate (7) to move horizontally on the rotating seat (3).

4. The round tube beveling machine according to claim 3, characterized in that: There are two groups of fixing seats A (11) arranged on the rotating seat (3), each group of fixing seats A (11) is composed of two fixing seat A units, a guide rod (12) is connected between the two fixing seat A units of each group of fixing seats A (11), the guide rods (12) of the two fixing seats A (11) are parallel, two fixing seats B (13) are arranged at the bottom of the driving device mounting plate (7), the two fixing seats B (13) are respectively sleeved on the two guide rods (12), and a spring (14) is sleeved on one side of the guide rod (12) close to the cutter (6), the two ends of the spring (14) are respectively connected to the fixing seat A (11) and the fixing seat B (13), when the driving device mounting plate (7) moves towards the round tube, the spring (14) is compressed, and when the driving handle (8) is released, the spring (14) extends to drive the driving device mounting plate (7) to move away from the round tube.

5. The round tube beveling machine according to claim 1, characterized in that: The moving frame (20) includes an upper pull rod (22), a lower pull rod (25), a connecting block (27) and a push-pull screw rod (28); an upper connecting piece (23) is fixed at one end of the upper pull rod (22) close to the driving device (5), the upper end of the flexible member (21) is connected to the upper connecting piece (23), the upper pull rod (22) passes through the upper part of the column (24) fixed on the frame (1), and can move horizontally relative to the column (24); a lower connecting piece (26) is fixed at one end of the lower pull rod (25) close to the driving device (5), the lower end of the flexible member (21) is connected to the lower connecting piece (26), the lower pull rod (25) passes through the lower part of the column (24), and can move horizontally relative to the column (24); the upper and lower parts of the connecting block (27) are respectively fixedly connected to one ends of the upper pull rod (22) and the lower pull rod (25) far from the driving device (5); the push-pull screw rod (28) passes through both sides of the connecting block (27) and is in threaded cooperation with the connecting block (27), the push-pull screw rod (28) is parallel to the upper pull rod (22), one end of the push-pull screw rod (28) is rotatably connected to the column (24), and the rotation of the push-pull screw rod (28) is used to drive the connecting block (27), the upper pull rod (22), the lower pull rod (25) and the flexible member (21) to move horizontally.

6. The round tube beveling machine according to claim 5, characterized in that: The upper connecting member (23) and the lower connecting member (26) have the same structure, both being in a "U" shape with the opening facing the side of the driving device (5). The flexible member (21) is one or more chains. The upper end of the chain is connected to the upper connecting member (23) by an upper connecting rod, and the lower end of the chain is connected to the lower connecting member (26) by a lower connecting rod.

7. The round pipe beveling machine according to claim 1, characterized in that: The rotating seat (3) is rotatably connected to the frame (1) by a rotating shaft (29). An arc groove (30) penetrating through the upper and lower parts is formed on the rotating seat (3). The center of the arc groove (30) is located on the center line of the rotating shaft (29). A locking bolt (31) is fixed on the frame (1). The locking bolt (31) is arranged in the arc groove (30) and passes through the frame (1) downward. When the rotating seat (3) rotates relative to the frame (1), the locking bolt (31) rotates relative to the rotating seat (3) in the arc groove (30). The locking member (4) is arranged on the locking bolt (31) and is in threaded cooperation with the locking bolt (31).

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