Pipe end polishing device

Abstract

The utility model relates to the technical field of pipe machining equipment, in particular to a pipe end grinding device which comprises a base, a clamping mechanism used for fixing a pipe and a telescopic driving mechanism are connected to the base, the fixed end of the telescopic driving mechanism is fixedly connected with the base, and the fixed end of the telescopic driving mechanism is fixedly connected with the base. The moving end of the telescopic driving mechanism is connected with a grinding mechanism, and the grinding mechanism is provided with a grinding end used for grinding the end of the pipe. The pipe is fixed through the clamping mechanism, and then the grinding mechanism is driven by the telescopic driving mechanism to grind the end of the pipe. Burrs at the ends of the pipes are polished and removed, and the fitting performance and the sealing performance of pipe assembly are improved. Due to the fact that the moving distance of the polishing mechanism is controlled through the telescopic driving mechanism, the polishing depth can be accurately controlled, the pipe polishing consistency is good, and the pipe product quality is improved.

Description

Technical Field

[0001] This utility model relates to the field of pipe processing equipment technology, and more specifically, to a pipe end grinding device. Background Technology

[0002] There are many types of pipes, such as double-wall corrugated pipes, which are widely used due to their excellent performance. During pipe manufacturing, it is sometimes necessary to cut the pipes, and burrs are easily generated at the cut surfaces. These burrs can affect the fit and sealing of subsequent pipe assembly, therefore, the end faces of the pipes need to be ground.

[0003] In the existing pipe grinding process, the pipe is usually picked up manually and brought close to the grinding device for grinding. The grinding depth is difficult to control, resulting in poor consistency in pipe grinding. Utility Model Content

[0004] To overcome the problem of difficulty in controlling the grinding depth of pipe ends in the prior art, this utility model provides a pipe end grinding device that makes the grinding depth of pipes uniform and improves the quality of pipe products.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a pipe end grinding device, including a base, a clamping mechanism for fixing the pipe and a telescopic drive mechanism for extending and retracting along the axial direction of the pipe connected on the base, the fixed end of the telescopic drive mechanism being fixedly connected to the base, the moving end of the telescopic drive mechanism being connected to a grinding mechanism, and the grinding end of the grinding mechanism being located at the end of the pipe.

[0006] In this invention, the pipe is fixed by a clamping mechanism, and then a grinding mechanism is driven by a telescopic drive mechanism to grind the ends of the pipe. Grinding removes burrs from the pipe ends, improving the fit and sealing of the pipe assembly. Since the movement distance of the grinding mechanism is controlled by the telescopic drive mechanism, the grinding depth can be accurately controlled, resulting in consistent pipe grinding and improved pipe product quality.

[0007] Furthermore, the polishing mechanism includes a movable frame, a drive motor, a transmission wheel set, and a polishing belt. The movable frame is fixedly connected to the movable end of the telescopic drive mechanism. The fixed end of the drive motor is fixedly connected to the movable frame. The output end of the drive motor is connected to the transmission wheel set. The transmission wheel set is connected to the movable frame. The polishing belt is sleeved on the transmission wheel set. The polishing end of the polishing mechanism is formed on the polishing belt.

[0008] In this solution, a drive motor drives the grinding belt to rotate via a transmission wheel set, and the pipe comes into contact with the grinding belt for grinding.

[0009] Furthermore, the transmission wheel assembly includes a driving wheel, a driven wheel, and a driven shaft. The driving wheel is coaxially connected to the output shaft of the drive motor, the driven shaft is connected to the moving frame, the driven wheel is rotatably mounted on the driven shaft, and the grinding belt is wound around the driving wheel and the driven wheel.

[0010] In this design, a drive motor drives the driving wheel to rotate, which in turn drives the grinding belt and the driven wheel to rotate.

[0011] Furthermore, the driven shaft is adjustablely connected to the movable frame in a direction close to or away from the driving wheel. A tensioning mechanism is also connected to the movable frame. The tensioning mechanism includes a top plate and a push rod screw. The top plate is fixedly connected to the movable frame. The push rod screw is threadedly connected to the top plate in the adjustment direction of the driven shaft. The end of the push rod screw abuts against the driven shaft to push the driven wheel away from the driving wheel.

[0012] In this solution, the tension of the grinding belt can be adjusted through a tensioning mechanism to improve the grinding effect of the pipe.

[0013] Furthermore, a first telescopic guide is connected to the mobile frame, and a second telescopic guide is connected to the fixed end of the telescopic drive mechanism. The first telescopic guide and the second telescopic guide are slidably connected along the telescopic direction of the telescopic drive mechanism.

[0014] In this design, the sliding connection between the first guide rail and the first slider guides the telescopic drive mechanism to move the frame.

[0015] Furthermore, the telescopic drive mechanism is a servo electric cylinder.

[0016] In this solution, the servo electric cylinder can precisely control the movement distance of the grinding mechanism, thereby allowing for more precise control of the grinding depth of the pipe.

[0017] Furthermore, the clamping mechanism includes a first clamping member, a second clamping member, and a lifting drive mechanism. The first clamping member is fixedly connected to the base, the fixed end of the lifting drive mechanism is fixedly connected to the base, and the moving end of the lifting drive mechanism is fixedly connected to the second clamping member to drive the second clamping member to move closer to or away from the first clamping member.

[0018] In this solution, the pipe is placed on the first clamping member, and then the second clamping member is moved closer to the pipe through the lifting drive mechanism, so that the pipe is clamped between the first clamping member and the second clamping member.

[0019] Furthermore, both the first clamping member and the second clamping member are provided with V-shaped grooves with openings facing each other.

[0020] In this solution, by setting a V-groove, the first clamping member and the second clamping member can clamp pipes of different diameters.

[0021] Furthermore, the clamping mechanism also includes a first lifting guide and a second lifting guide. The first lifting guide is connected to the fixed end of the lifting drive mechanism, and the second lifting guide is connected to the second clamping member. The first lifting guide and the second lifting guide are slidably connected along the lifting direction of the lifting drive mechanism.

[0022] In this design, the sliding connection between the second guide rail and the second slider guides the movement of the second clamping member driven by the lifting drive mechanism.

[0023] Furthermore, the pipe end grinding device also includes a controller, which is electrically connected to the telescopic drive mechanism, the drive motor, and the lifting drive mechanism.

[0024] In this solution, a controller is used to coordinate the operation of various components, thereby achieving automated pipe grinding.

[0025] Furthermore, the pipe end grinding device also includes a protective cover, which is fixedly connected to the base. The grinding mechanism is disposed in the protective cover. The protective cover has openings on the side near the grinding end and on the side near the telescopic drive mechanism. The moving end of the telescopic drive mechanism passes through the openings and connects to the grinding mechanism.

[0026] In this solution, the protective cover can reduce dust pollution generated during the polishing process.

[0027] Furthermore, the bottom of the protective cover is provided with a waste bin, and the side of the protective cover is provided with an observation window.

[0028] In this design, a waste bin is installed at the bottom of the protective cover to collect the waste generated during grinding, and an observation window allows for easy viewing of the grinding process inside the device.

[0029] Compared with the prior art, the beneficial effects of this utility model are:

[0030] I. This utility model discloses a pipe end grinding device that uses a clamping mechanism to fix the pipe and a telescopic drive mechanism to drive a grinding mechanism to grind the pipe end. Grinding removes burrs from the pipe end, improving the fit and sealing of the pipe assembly. Since the movement distance of the grinding mechanism is controlled by the telescopic drive mechanism, the grinding depth can be accurately controlled, resulting in consistent pipe grinding and improved pipe product quality.

[0031] II. The pipe end grinding device of this utility model can reduce harm to personnel and environmental pollution by setting a waste bin at the bottom of the protective cover to collect the waste generated during grinding, and by using an observation window to easily observe the grinding situation inside the device.

[0032] Third, the pipe end grinding device of this utility model controls the operation of each component through a controller, thereby realizing automated pressing and automated grinding, reducing product processing time, reducing production costs and labor intensity, and improving production efficiency.

[0033] IV. The pipe end grinding device of this utility model tightens the grinding belt by setting a tensioning mechanism to achieve a better grinding effect and reduce equipment maintenance costs. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the overall structure of the pipe end grinding device of this utility model;

[0035] Figure 2 yes Figure 1 A schematic diagram of the overall structure from another perspective;

[0036] Figure 3 This is a schematic diagram of the clamping mechanism excluding the second clamping element;

[0037] Figure 4 This is a schematic diagram showing the connection between the grinding mechanism and the telescopic drive mechanism.

[0038] In the attached diagram: 1. Base; 11. Working plane; 12. Foot cup; 13. Protective cover; 131. Waste bin; 132. Observation window; 14. Support crossbar; 15. Support frame; 16. Support plate; 2. Clamping mechanism; 21. First clamping component; 22. Second clamping component; 23. Lifting drive mechanism; 24. First lifting guide component; 25. Second lifting guide component; 26. Lifting bracket; 3. Telescopic drive mechanism; 31. First telescopic guide component; 32. Second telescopic guide component; 4. Grinding mechanism; 41. Moving frame; 411. Connecting plate; 412. Adjustment groove; 42. Drive motor; 421. Motor mounting plate; 422. Coupling; 43. Grinding belt; 44. Drive wheel; 45. Driven wheel; 46. Driven shaft; 47. Shaft end plate; 5. Tensioning mechanism; 51. Top plate; 52. Top rod screw; 6. Controller. Detailed Implementation

[0039] The accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. To better illustrate this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. The positional relationships described in the drawings are for illustrative purposes only and should not be construed as limiting this patent.

[0040] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "long," and "short" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0041] The technical solution of this utility model will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings:

[0042] Example 1

[0043] refer to Figures 1 to 4 This embodiment discloses a pipe end grinding device, including a base 1, a clamping mechanism 2 for fixing the pipe and a telescopic drive mechanism 3 for telescopic movement along the pipe axis connected on the base 1, the fixed end of the telescopic drive mechanism 3 is fixedly connected to the base 1, and the moving end of the telescopic drive mechanism 3 is connected to a grinding mechanism 4, the grinding end of the grinding mechanism 4 is located at the end of the pipe.

[0044] In this embodiment, the pipe is fixed by the clamping mechanism 2, and then the grinding mechanism 4 is driven by the telescopic drive mechanism 3 to grind the end of the pipe. Grinding removes burrs from the pipe end, improving the fit and sealing of the pipe assembly. Since the moving distance of the grinding mechanism 4 is controlled by the telescopic drive mechanism 3, the grinding depth can be accurately controlled, resulting in good consistency in pipe grinding and improving the quality of the pipe product.

[0045] Specifically, refer to Figure 1 and Figure 2 The base 1 can be a roughly rectangular frame structure, with a working surface 11 on the top for mounting other components. The length of the base 1 can be no less than the length of the pipe, so that the pipe can be completely placed on the base 1. Foot cups 12 are connected to the four corners of the bottom of the base 1 to stabilize the base 1 on the ground.

[0046] Multiple clamping mechanisms 2 can be provided, with each clamping structure arranged on the working plane 11 of the base 1 along the length of the pipe. For example, in this embodiment, two sets of clamping mechanisms 2 are provided, so that the pipe can be stably clamped in the device. In other embodiments, other numbers of clamping mechanisms 2 can be provided according to the length of the pipe and actual needs.

[0047] refer to Figure 1 and Figure 2 In this embodiment, a vertical opening is provided on the working plane 11 near the end of the pipe, and a protective cover 13 is fixedly connected to the opening. A support crossbar 14 is also provided at the bottom of the base 1. The protective cover 13 passes through the opening, rests on the support crossbar 14, and is fixedly connected to the base 1. The support crossbar 14 provides auxiliary support for the protective cover 13. The grinding mechanism 4 is located in the protective cover 13, thus reducing dust pollution during the grinding process.

[0048] An opening is provided on the side of the protective cover 13 near the pipe, allowing the pipe to pass through and contact the grinding mechanism 4 inside the protective cover 13. An opening is also provided on the side of the protective cover 13 near the telescopic drive mechanism 3, allowing the telescopic drive mechanism 3 to pass through and connect to the grinding mechanism 4. A waste bin 131 is provided at the bottom of the protective box to collect waste materials falling during the grinding process. A transparent observation window 132 is also provided on the side of the protective box to allow the operator to observe the operation of the equipment.

[0049] refer to Figure 4 This is a schematic diagram showing the connection between the grinding mechanism 4 and the telescopic drive mechanism 3. To clearly show the internal structure of the grinding mechanism 4, the structures of the base 1 and the protective cover 13 are not shown in the figure. Therefore, the fixed end of the telescopic drive mechanism 3 shown in the figure is in a floating state, but in the complete device, the fixed end of the telescopic drive mechanism 3 should be directly or indirectly fixedly connected to the base 1.

[0050] refer to Figure 2 and Figure 4 In this embodiment, the polishing mechanism 4 includes a movable frame 41, a drive motor 42, a transmission wheel set, and a polishing belt 43. The movable frame 41 is fixedly connected to the movable end of the telescopic drive mechanism 3. The fixed end of the drive motor 42 is fixedly connected to the movable frame 41. The output end of the drive motor 42 is connected to the transmission wheel set. The transmission wheel set is connected to the movable frame 41. The polishing belt 43 is sleeved on the transmission wheel set. The polishing end of the polishing mechanism 4 is formed on the polishing belt 43.

[0051] Specifically, the interior of the movable frame 41 forms a roughly rectangular installation space, in which the transmission wheel assembly is placed. The transmission wheel assembly includes a driving wheel 44, a driven wheel 45, and a driven shaft 46. The driving wheel 44 is coaxially connected to the output shaft of the drive motor 42, the driven shaft 46 is connected to the movable frame 41, and the driven wheel 45 is rotatably mounted on the driven shaft 46. The grinding belt 43 is wound around the driving wheel 44 and the driven wheel 45.

[0052] refer to Figure 4 The drive motor 42 is positioned outside the movable frame 41, and its main body is fixedly connected to the side of the movable frame 41 via a motor mounting plate 421. The output shaft of the drive motor 42 is connected to a coupling 422 and passes through the side wall of the movable frame 41 to connect with the drive wheel 44. The other end of the drive wheel 44 extends out of the shaft and is rotatably connected to the movable frame 41 via a bearing. The driven wheel 45 is located above, and the drive wheel 44 and drive motor 42 are located below. The grinding belt 43 is vertically sleeved on the driven wheel 45 and the drive wheel 44. The drive motor 42 drives the drive wheel 44 to rotate, and the drive wheel 44 drives the driven wheel 45 to rotate via the grinding belt 43, allowing the end of the pipe to contact the surface of the grinding belt 43 for grinding.

[0053] refer to Figure 4 A connecting plate 411 extends laterally from the middle of the movable frame 41, and the connecting plate 411 is fixedly connected to the movable frame 41. The moving end of the telescopic drive mechanism 3 is fixedly connected to the connecting plate 411, which is equivalent to indirectly and fixedly connected to the movable frame 41 through the connecting plate 411, thereby enabling it to push the movable frame 41. The connecting plate 411 can also be integrally formed with the movable frame 41, and the connecting plate 411 is a part of the movable frame 41.

[0054] refer to Figure 4 The driven shaft 46 is adjustablely connected to the movable frame 41 in a direction close to or away from the driving wheel 44. A tensioning mechanism 5 is also connected to the movable frame 41. The tensioning mechanism 5 includes a top plate 51 and a push rod screw 52. The top plate 51 is fixedly connected to the movable frame 41, and the push rod screw 52 is threadedly connected to the top plate 51 in the adjustment direction of the driven shaft 46. The end of the push rod screw 52 abuts against the driven shaft 46 to push the driven wheel 45 away from the driving wheel 44. By turning the push rod screw 52, ​​it moves up and down within the top plate 51, thereby abutting against the driven rod in the vertical direction.

[0055] Adjustment slots 412 are vertically formed on both side walls of the movable frame 41, through which the two ends of the driven shaft 46 are assembled. A shaft end plate 47 is fixedly connected to the outer end of the driven shaft 46 after it passes through the adjustment slot 412. The shaft end plate 47 prevents the driven shaft 46 from deviating or disengaging from the adjustment slot 412. The adjustment mechanism is located on the side of the driven shaft 46 closest to the driving wheel 44, that is, below the driven shaft 46. Therefore, the driven shaft 46 can be pushed upwards by the push rod screw 52, ​​causing the driven shaft 46 to move away from the driving wheel 44, thereby tensioning the grinding belt 43.

[0056] refer to Figure 4 The mobile frame 41 is connected to a first telescopic guide 31, and the fixed end of the telescopic drive mechanism 3 is connected to a second telescopic guide 32. The first telescopic guide 31 and the second telescopic guide 32 are slidably connected along the telescopic direction of the telescopic drive mechanism 3.

[0057] In this embodiment, the first telescopic guide 31 is a first guide rail, and the second telescopic guide 32 is a first slider. The first guide rail extends along the telescopic direction of the telescopic drive mechanism 3. Through the sliding connection between the first guide rail and the first slider, the telescopic drive mechanism 3 can guide the moving frame 41.

[0058] refer to Figure 1 and Figure 2 The fixed end of the telescopic drive mechanism 3 can be indirectly connected to the second telescopic guide 32 through other parts. For example, in this embodiment, the base 1 is fixedly connected to a support frame 15, and support plates 16 are fixedly connected to both sides of the support frame 15. The support plates 16 are fixedly connected to the fixed end of the telescopic drive mechanism 3 and the support plates 16 on both sides, and the outer side of the support plates 16 is fixedly connected to the second telescopic guide 32, that is, fixedly connected to the first slider.

[0059] In other embodiments, the first telescopic guide 31 can be a first slider, and the second telescopic guide 32 can be a first guide rail, which can also serve a guiding function. Of course, the size and shape of the components may need to be adjusted accordingly to facilitate assembly.

[0060] In this embodiment, the telescopic drive mechanism 3 is a servo electric cylinder. The servo electric cylinder can precisely control the moving distance of the grinding mechanism 4, thereby more precisely controlling the grinding depth of the pipe.

[0061] Example 2

[0062] refer to Figures 1 to 4This embodiment is similar to Embodiment 1, except that in this embodiment, the clamping mechanism 2 includes a first clamping member 21, a second clamping member 22, and a lifting drive mechanism 23. The first clamping member 21 is fixedly connected to the base 1, the fixed end of the lifting drive mechanism 23 is fixedly connected to the base 1, and the moving end of the lifting drive mechanism 23 is fixedly connected to the second clamping member 22 to drive the second clamping member 22 closer to or away from the first clamping member 21. In use, the pipe is placed on the first clamping member 21, and then the lifting drive mechanism 23 drives the second clamping member 22 closer to the pipe, so that the pipe is clamped between the first clamping member 21 and the second clamping member 22. Therefore, the pipe will not move when grinding.

[0063] refer to Figure 1 and Figure 2 In this embodiment, both the first clamping member 21 and the second clamping member 22 are provided with V-shaped grooves with openings facing each other. By providing the V-shaped grooves, the first clamping member 21 and the second clamping member 22 can clamp pipes of different diameters.

[0064] The fixed end of the lifting drive mechanism 23 can be indirectly connected to the base 1 through other parts. For example, in this embodiment, the fixed end of the lifting drive mechanism 23 is fixedly connected to a lifting bracket 26, and the lifting bracket 26 is fixedly connected to the base 1.

[0065] refer to Figure 3 The clamping mechanism 2 also includes a first lifting guide 24 and a second lifting guide 25. The first lifting guide 24 is connected to the fixed end of the lifting drive mechanism 23, and the second lifting guide 25 is connected to the second clamping member 22. The first lifting guide 24 and the second lifting guide 25 are slidably connected along the lifting direction of the lifting drive mechanism 23.

[0066] In this embodiment, the first lifting guide 24 is the second slider, and the second lifting guide 25 is the second guide rail. The second guide rail extends along the lifting direction of the lifting drive mechanism 23. Through the sliding connection between the second guide rail and the second slider, the lifting drive mechanism 23 can guide the movement of the second clamping member 22.

[0067] In other embodiments, the first lifting guide 24 can be the second guide rail, and the second lifting guide 25 can be the second slider, which can also serve a guiding function. Of course, the size and shape of the components may need to be adjusted accordingly to facilitate assembly.

[0068] Example 3

[0069] refer to Figure 1This embodiment is similar to Embodiment 1, except that in this embodiment, the pipe end grinding device further includes a controller 6, which is electrically connected to the telescopic drive mechanism 3, the drive motor 42, and the lifting drive mechanism 23. The controller 6 facilitates coordinated control of the operation of each component, thereby achieving automated pipe grinding. The controller 6 can be an operating console with a display panel for user operation.

[0070] It is understandable that the telescopic drive mechanism 3 uses a servo electric cylinder, which can be directly connected to the controller 6 for control. When the lifting drive mechanism 23 uses a pneumatic cylinder or a hydraulic cylinder, a solenoid valve can be installed on the corresponding pneumatic or hydraulic circuit. The controller 6 controls the solenoid valve, thereby indirectly controlling the movement of the lifting drive mechanism 23.

[0071] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A device for grinding the ends of pipes, characterized in that: Includes a base (1), on which a clamping mechanism (2) for fixing the pipe and a telescopic drive mechanism (3) are connected. The fixed end of the telescopic drive mechanism (3) is fixedly connected to the base (1), and the moving end of the telescopic drive mechanism (3) is connected to a grinding mechanism (4). The grinding mechanism (4) has a grinding end for grinding the end of the pipe.

2. The pipe end grinding device according to claim 1, characterized in that: The polishing mechanism (4) includes a movable frame (41), a drive motor (42), a transmission wheel set, and a polishing belt (43). The movable frame (41) is fixedly connected to the movable end of the telescopic drive mechanism (3). The fixed end of the drive motor (42) is fixedly connected to the movable frame (41). The output end of the drive motor (42) is connected to the transmission wheel set. The transmission wheel set is connected to the movable frame (41). The polishing belt (43) is sleeved on the transmission wheel set. The polishing end of the polishing mechanism (4) is formed on the polishing belt (43).

3. The pipe end grinding device according to claim 2, characterized in that: The transmission wheel set includes a driving wheel (44), a driven wheel (45), and a driven shaft (46). The driving wheel (44) is coaxially connected to the output shaft of the drive motor (42). The driven shaft (46) is connected to the moving frame (41). The driven wheel (45) is coaxially rotatably mounted on the driven shaft (46). The grinding belt (43) is wound around the driving wheel (44) and the driven wheel (45).

4. The pipe end grinding device according to claim 3, characterized in that: The driven shaft (46) is adjustablely connected to the movable frame (41) in a direction close to or away from the driving wheel (44). The movable frame (41) is also connected to a tensioning mechanism (5). The tensioning mechanism (5) includes a top plate (51) and a push rod screw (52). The top plate (51) is fixedly connected to the movable frame (41). The push rod screw (52) is threadedly connected to the top plate (51) in the adjustment direction of the driven shaft (46). The end of the push rod screw (52) abuts against the driven shaft (46) to push the driven wheel (45) away from the driving wheel (44).

5. The pipe end grinding device according to claim 2, characterized in that: The mobile frame (41) is connected to a first telescopic guide (31), and the fixed end of the telescopic drive mechanism (3) is connected to a second telescopic guide (32). The first telescopic guide (31) and the second telescopic guide (32) are slidably connected along the telescopic direction of the telescopic drive mechanism (3).

6. The pipe end grinding device according to claim 1, characterized in that: The clamping mechanism (2) includes a first clamping member (21), a second clamping member (22), and a lifting drive mechanism (23). The first clamping member (21) is fixedly connected to the base (1). The fixed end of the lifting drive mechanism (23) is fixedly connected to the base (1). The moving end of the lifting drive mechanism (23) is fixedly connected to the second clamping member (22) to drive the second clamping member (22) to move closer to or away from the first clamping member (21).

7. The pipe end grinding device according to claim 6, characterized in that: The clamping mechanism (2) further includes a first lifting guide (24) and a second lifting guide (25). The first lifting guide (24) is connected to the fixed end of the lifting drive mechanism (23), and the second lifting guide (25) is connected to the second clamping member (22). The first lifting guide (24) and the second lifting guide (25) are slidably connected along the lifting direction of the lifting drive mechanism (23).

8. The pipe end grinding device according to claim 6, characterized in that: The pipe end grinding device also includes a controller (6), which is electrically connected to the telescopic drive mechanism (3), the drive motor (42) and the lifting drive mechanism (23).

9. The pipe end grinding device according to claim 1, characterized in that: The pipe end grinding device also includes a protective cover (13), which is fixedly connected to the base (1). The grinding mechanism (4) is disposed in the protective cover (13). The protective cover (13) has an opening on the side near the grinding end and on the side near the telescopic drive mechanism (3). The moving end of the telescopic drive mechanism (3) passes through the opening and is connected to the grinding mechanism (4).

10. The pipe end grinding device according to claim 9, characterized in that: The bottom of the protective cover (13) is provided with a waste bin (131), and the side of the protective cover (13) is provided with an observation window (132).

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