Pipe body polishing equipment for MPP cable protection pipe machining

Abstract

The invention provides pipe body polishing equipment for MPP cable protection pipe machining. The pipe body polishing equipment comprises a machine base, two fixing mechanisms, a synchronizing mechanism and a polishing mechanism. The two fixing mechanisms are both installed on the machine base. The fixing mechanism comprises a first linear driver, a first rotary driver and a jacking assembly, and the first linear driver is installed on the machine base. The synchronizing mechanism comprises a synchronizing frame, a standard belt, a plurality of standard protrusions and a plurality of standard grooves. The polishing mechanism comprises a second linear driver, a guide block, a polishing frame, a grinding wheel and a second rotary driver. According to the pipe body polishing equipment for machining the MPP cable protection pipe, under the guiding action of the standard belt, the multiple standard protrusions, the multiple standard grooves and the contour of the corrugated MPP pipe, the grinding wheel can move along the contour of the corrugated MPP pipe through the polishing frame, so that burrs in the pipe grooves can be effectively removed, and the machining quality of the MPP cable protection pipe is improved. And burrs on the surfaces of the pipe bulges can be effectively removed.

Description

Technical Field

[0001] This application relates to the field of MPP cable protection pipe processing equipment, and in particular to a pipe body polishing equipment for processing MPP cable protection pipes. Background Technology

[0002] MPP pipe (modified polypropylene pipe) is a special type of pipe made of modified polypropylene material. It possesses excellent insulation properties and is resistant to high temperatures and pressures, making it commonly used as cable protection conduit. Classified by structural form, MPP pipes typically include solid-wall MPP pipes and corrugated MPP pipes. Solid-wall MPP pipes have high overall strength, good tensile and impact resistance, and excellent heat-fusion butt sealing, and are commonly used in high-voltage cable protection, trenchless jacking / dragging pipe applications, deep burial (>4m), and high-load areas (such as along highways). Corrugated MPP pipes have high ring stiffness (corrugations disperse external forces), are lightweight (30%-50% lighter than solid-wall pipes), and have low cable pulling resistance, and are commonly used in shallow burial (<4m), open-cut construction, cable trenches, integrated pipe galleries, and multi-cable park networks. During the production process, burrs are present on the surface of MPP pipes, which typically need to be removed using pipe grinding equipment. Currently, when using pipe polishing equipment to remove burrs from the surface of corrugated MPP pipes, the equipment cannot effectively remove the burrs in the grooves on the surface of the corrugated MPP pipes, resulting in poor polishing effect. Summary of the Invention

[0003] The purpose of this application is to provide a tube grinding equipment for processing MPP cable protection pipes, so as to solve the technical problem that the existing tube grinding equipment cannot effectively remove burrs in the groove.

[0004] To achieve the above objectives, the technical solution adopted in this application is: to provide a pipe body polishing device for processing MPP cable protection pipes, comprising: Base; Both fixing mechanisms are mounted on the base; The fixing mechanism includes a linear driver, a rotary driver, and a top support assembly. The linear driver is mounted on the base, the rotary driver is mounted on the linear driver and moves along a first direction under the drive of the linear driver, and the top support assembly is mounted on the rotary driver and rotates around the first direction under the drive of the rotary driver. A synchronization mechanism includes a synchronization frame, a standard belt, multiple standard protrusions, and multiple standard grooves. The synchronization frame is mounted on the machine base, the standard belt is mounted on the synchronization frame, and the multiple standard protrusions are formed on the standard belt and are correspondingly arranged with the tube grooves, and their cross-sectional shapes are consistent with those of the tube grooves. The standard grooves are formed between any two adjacent standard protrusions and are correspondingly arranged with the tube protrusions, and their cross-sectional shapes are consistent with those of the tube protrusions. A polishing mechanism includes a second linear actuator, a guide block, a polishing frame, a grinding wheel, and a second rotary actuator. The second linear actuator is mounted on the machine base. The guide block is mounted on the second linear actuator and moves along a first direction under the drive of the second linear actuator. The polishing frame is mounted on the guide block and moves along the outer contour of the corrugated MPP tube under the action of multiple standard protrusions and multiple tube protrusions. The grinding wheel is mounted on the polishing frame. The second rotary actuator is mounted on the polishing frame and is used to drive the grinding wheel to rotate around the first direction.

[0005] Optionally, the polishing frame includes multiple guide rods, a fixing plate, multiple adjusting members, a fixing plate, and multiple protrusions. The multiple guide rods pass through the guide block. The fixing plate is connected to one end of the multiple guide rods near the fixing mechanism. The multiple adjusting members are installed on the fixing plate. The fixing plate is installed on the multiple adjusting members and is located between the standard belt and the fixing plate. The multiple protrusions are formed on the side of the fixing plate facing the standard belt.

[0006] Optionally, the adjusting component includes a screw, a first nut, and a second nut. The screw is connected to the first fixing plate. The first nut is screwed onto the screw and is located on the side of the second fixing plate facing the first fixing plate. The second nut is screwed onto the screw and is located on the side of the second fixing plate facing the standard belt.

[0007] Optionally, the guide block has multiple notches, and the multiple notches and the multiple screws are arranged in a one-to-one correspondence.

[0008] Optionally, the length of the standard strip in the first direction is greater than the length of the corrugated MPP tube in the first direction.

[0009] Optionally, the polishing frame further includes two mounting plates, both of which are formed on the fixing plate.

[0010] Optionally, the synchronization mechanism further includes a plurality of guide rods II, all of which are mounted on the synchronization frame and pass through the guide block.

[0011] Optionally, the top support assembly includes a central rod, an active member, a plurality of driven members, and a plurality of top rods. The central rod is mounted on the rotary actuator, the active member is sleeved on the central rod, the plurality of driven members are all mounted on the central rod, and the plurality of top rods are respectively mounted on the ends of the plurality of driven members away from the central rod, and are configured to converge towards each other or expand away from each other through the active member and the plurality of driven members.

[0012] Optionally, the top support assembly further includes a threaded section formed on the central rod; The driving component includes a threaded sleeve and a sliding sleeve. The threaded sleeve is fitted onto the central rod and screwed onto the threaded section. The sliding sleeve is fitted onto the central rod and moves away from the rotary driver along a first direction under the drive of the threaded sleeve.

[0013] Optionally, the driven member includes a first hinge rod, a second hinge rod, and at least one third hinge rod. The first hinge rod is hinged between the top rod and the threaded sleeve. The second hinge rod is hinged between the center rod and the top rod, and together with the center rod and the first hinge rod, forms an isosceles triangle structure. At least one third hinge rod is hinged between the center rod and the top rod, and together with the center rod, the top rod, and the second hinge rod, forms a parallelogram mechanism. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 A perspective view of a pipe body polishing device for processing MPP cable protection pipes provided in this application; Figure 2 A perspective view of a pipe body polishing device for processing MPP cable protection pipes, excluding the machine base and fixing mechanism, provided for this application; Figure 3 A plan view of a tube body polishing device for processing MPP cable protection pipes provided in this application; Figure 4 A perspective view of the top support assembly of a pipe body polishing equipment for processing MPP cable protection pipes provided in this application.

[0016] The following are the labeling elements in the figure: 1. Base; 2. Fixing mechanism; 21. Linear actuator 1; 22. Rotary actuator 1; 23. Top support assembly; 231. Center rod; 232. Driving element; 2321. Screw sleeve; 2322. Sliding sleeve; 233. Driven element; 2331. First hinge rod; 2332. Second hinge rod; 2333. Third hinge rod; 234. Top rod; 235. Threaded section; 3. Synchronization mechanism; 31. Synchronization frame; 32. Standard belt; 33. Standard protrusion; 34. Standard groove; 4. Grinding mechanism; 41. Linear actuator II; 42. Guide block; 43. Grinding frame; 431. Guide rod I; 432. Fixing plate I; 433. Adjusting component; 4331. Screw; 4332. Nut I; 4333. Nut II; 434. Fixing plate II; 435. Raised strip; 436. Mounting plate; 44. Grinding wheel; 45. Rotary actuator II; 46. Notch; 47. Guide rod II. Detailed Implementation

[0017] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0018] It should be noted that when a component is referred to as being "mounted to," "fixed to," or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0019] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0020] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0021] like Figures 1 to 4As shown, this application provides a pipe grinding device for processing MPP cable protection pipes, including a base 1, two fixing mechanisms 2, a synchronization mechanism 3, and a grinding mechanism 4. Both fixing mechanisms 2 are mounted on the base 1. Each fixing mechanism 2 includes a linear drive 21, a rotary drive 22, and a top support assembly 23. The linear drive 21 is mounted on the base 1, and the rotary drive 22 is mounted on the linear drive 21 and moves along a first direction under the drive of the linear drive 21. The top support assembly 23 is mounted on the rotary drive 22 and rotates around the first direction under the drive of the rotary drive. The synchronization mechanism 3 includes a synchronization frame 31, a standard belt 32, multiple standard protrusions 33 and multiple standard grooves 34. The synchronization frame 31 is installed on the machine base 1, the standard belt 32 is installed on the synchronization frame 31, the multiple standard protrusions 33 are all formed on the standard belt 32 and are correspondingly set with the tube grooves, and the cross-sectional shape is consistent with the cross-sectional shape of the tube grooves. The standard grooves 34 are formed between any two adjacent standard protrusions 33 and are correspondingly set with the tube protrusions, and the cross-sectional shape is consistent with the cross-sectional shape of the tube protrusions. The polishing mechanism 4 includes a linear drive 41, a guide block 42, a polishing frame 43, a grinding wheel 44, and a rotary drive 45. The linear drive 41 is mounted on the base 1. The guide block 42 is mounted on the linear drive 41 and moves along a first direction under the drive of the linear drive 41. The polishing frame 43 is mounted on the guide block 42 and moves along the outer contour of the corrugated MPP tube under the action of multiple standard protrusions 33 and multiple tube protrusions. The grinding wheel 44 is mounted on the polishing frame 43. The rotary drive 45 is mounted on the polishing frame 43 and is used to drive the grinding wheel 44 to rotate around the first direction.

[0022] It should be noted that the "first direction" above and below refers to the bidirectional direction of the shortest connecting line between the two fixed mechanisms 2, as detailed below. Figure 1 The X-axis shown; the second direction above and below refers to the bidirectional direction of the shortest connection between the synchronization mechanism 3 and the fixing mechanism 2, specifically as follows: Figure 1 The Y-axis is shown in the figure.

[0023] This application provides a pipe grinding device for processing MPP cable protection pipes. Guided by a standard belt 32, multiple standard protrusions 33, multiple standard grooves 34, and the contour of the corrugated MPP pipe itself, the grinding wheel 44 moves along the contour of the corrugated MPP pipe via a grinding frame 43. This effectively removes burrs from the grooves and protrusions. Furthermore, compared to existing technologies that use an elastic structure to hold the grinding wheel 44 against the surface of the corrugated MPP pipe, the pressure exerted by the grinding wheel 44 on various locations of the corrugated MPP pipe is approximately equal when it moves, thus avoiding over-grinding in localized areas and achieving a better grinding effect. Under the action of the two linear actuators 21, the two support components 23 can be driven to move in opposite directions along the first direction, which is convenient for placing the corrugated MPP tube and prevents the support components 23 from interfering with the placement of the MPP tube; the two support components 23 can also be driven to move towards each other along the first direction, so that the support components 23 can extend into the corrugated MPP tube, which is convenient for the support components 23 to fix the corrugated MPP tube.

[0024] Optionally, both linear driver 21 and linear driver 41 are configured as linear modules. Both rotary driver 22 and rotary driver 45 are configured as rotary motors.

[0025] In one embodiment of this application, please refer to Figures 1 to 4 The polishing frame 43 includes multiple guide rods 431, a fixing plate 432, multiple adjusting members 433, a fixing plate 434, and multiple protrusions 435. The multiple guide rods 431 are all inserted through the guide block 42. The fixing plate 432 is connected to one end of the multiple guide rods 431 near the fixing mechanism 2. The multiple adjusting members 433 are all installed on the fixing plate 432. The fixing plate 434 is installed on the multiple adjusting members 433 and is located between the standard belt 32 and the fixing plate 432. The multiple protrusions 435 are all formed on the side of the fixing plate 434 facing the standard belt 32.

[0026] With this configuration, when the linear actuator 41 drives the guide block 42 to move in the first direction, it guides the grinding frame 43 to move towards the fixing mechanism 2 in the second direction via multiple protrusions 435 and multiple standard bosses. This allows the grinding wheel 44 to enter the tube groove, thereby removing burrs from the groove. The multiple guide rods 431 improve the stability of the grinding wheel 44's movement in the second direction. The multiple adjusting members 433 adjust the distance between the fixing plate 432 and the fixing plate 434, thereby adjusting the position of the grinding wheel 44 in the second direction. This allows for grinding of corrugated MPP tubes of different diameters, improving the applicability of the device.

[0027] In one embodiment of this application, please refer to the following: Figures 1 to 4The adjusting component 433 includes a screw 4331, a first nut 4332, and a second nut 4333. The screw 4331 is connected to the first fixing plate 432. The first nut 4332 is screwed to the screw 4331 and is located on the side of the second fixing plate 434 facing the first fixing plate 432. The second nut 4333 is screwed to the screw 4331 and is located on the side of the second fixing plate 434 facing the standard belt 32.

[0028] This configuration allows for easy adjustment of the grinding wheel 44's position in the second direction via the screw 4331, nut 4332, and nut 4333. Furthermore, the screw 4331 provides self-locking via the nuts 4332 and 4333, preventing displacement of the grinding wheel 44 and affecting the polishing effect when the grinding wheel 44 is polishing the corrugated MPP pipe. This also helps improve the structural stability between the fixed plates 432 and 434.

[0029] In one embodiment of this application, see [reference] Figures 1 to 4 The guide block 42 has multiple notches 46, and the multiple notches 46 and multiple screws 4331 are set one-to-one.

[0030] With this configuration, when adjusting the position of the grinding wheel 44 in the second direction, multiple notches 46 can be used to avoid obstructing the movement of multiple screws 4331, preventing the guide rod from interfering with the movement of the screws 4331 and causing the grinding wheel 44 to be unable to be adjusted.

[0031] In one embodiment of this application, please refer to Figures 1 to 4 The length of the standard strip 32 in the first direction is greater than the length of the corrugated MPP tube in the first direction.

[0032] This configuration avoids the situation where, during the polishing of corrugated MPP tubes, the standard 32 strip is too short, resulting in unpolished areas in the corrugated MPP tubes.

[0033] In one embodiment of this application, please refer to the following: Figures 1 to 4 The polishing frame 43 also includes two mounting plates 436, both of which are formed on the fixed plate 432.

[0034] This configuration, with the help of the two mounting plates 436, facilitates the installation of the grinding wheel 44 and the rotary driver 45.

[0035] In one embodiment of this application, see [reference] Figures 1 to 4 The synchronization mechanism 3 also includes multiple guide rods 47, which are all installed on the synchronization frame 31 and pass through the guide block 42.

[0036] With this configuration, when the linear actuator 41 drives the grinding wheel 44 to move in the first direction, the multiple guide rods 47 help improve the stability of the grinding wheel 44's movement in the first direction.

[0037] In one embodiment of this application, please refer to Figures 1 to 4 The top support assembly 23 includes a central rod 231, an active member 232, multiple driven members 233, and multiple top rods 234. The central rod 231 is mounted on the rotary actuator 22. The active member 232 is sleeved on the central rod 231. The multiple driven members 233 are all mounted on the central rod 231. The multiple top rods 234 are respectively mounted on the ends of the multiple driven members 233 away from the central rod 231 and are configured to converge towards each other or expand away from each other through the active member 232 and the multiple driven members 233.

[0038] With this configuration, the multiple driving members 232 and multiple driven members 233 cause the multiple push rods 234 to unfold backwards until they press against the inner circumference of the corrugated MPP tube, thereby fixing the corrugated MPP tube and aligning its central axis with the rotation axis of the rotary actuator 22, facilitating polishing by the grinding wheel 44. Furthermore, by controlling the convergence or decontraction of the multiple push rods 234 under the action of the multiple driving members 232 and multiple driven members 233, corrugated MPP tubes of different diameters can be fixed, thus expanding the applicability of the device.

[0039] In one embodiment of this application, please refer to the following: Figures 1 to 4 The top support assembly 23 also includes a threaded section 235, which is formed on the central rod 231. The driving component 232 includes a threaded sleeve 2321 and a sliding sleeve 2322. The threaded sleeve 2321 is fitted onto the central rod 231 and screwed onto the threaded section 235. The sliding sleeve 2322 is fitted onto the central rod 231 and moves away from the rotary driver 22 in the first direction under the drive of the threaded sleeve 2321.

[0040] With this configuration, under the action of the threaded section 235, the threaded sleeve 2321 can move along the first direction by rotating it, thereby adjusting the position of the threaded sleeve 2321 on the central rod 231, and consequently adjusting the position of the sliding sleeve 2322 on the central rod 231. By adjusting the position of the sliding sleeve 2322, the multiple push rods 234 can be brought together or extended. Under the action of the threaded section 235, the threaded sleeve 2321 can achieve self-locking, preventing the movement of the sliding sleeve 2322 from causing the push rods 234 to shift and affecting the fixing effect when multiple push rods 234 are fixing the corrugated MPP pipe.

[0041] In one embodiment of this application, see [reference] Figures 1 to 4The driven member 233 includes a first hinge rod 2331, a second hinge rod 2332, and at least one third hinge rod 2333. The first hinge rod 2331 is hinged between the top rod 234 and the threaded sleeve 2321. The second hinge rod 2332 is hinged between the center rod 231 and the top rod 234, and together with the center rod 231 and the first hinge rod 2331, they form an isosceles triangle structure. At least one third hinge rod 2333 is hinged between the center rod 231 and the top rod 234, and together with the center rod 231, the top rod 234, and the second hinge rod 2332, they form a parallelogram mechanism.

[0042] With this configuration, driven by the first hinge rod 2331 and the second hinge rod 2332, the end of the top rod 234 near the rotary actuator 22 can move relative to the central rod 231. Under the action of the third hinge rod 2333, a parallelogram mechanism is formed by the top rod 234, the central rod 231, and the second hinge rod 2332, which limits the position of the top rod 234, ensuring that the top rod 234 remains parallel to the central rod 231 when moving relative to the central rod 231. This allows it to be stably pressed against the inner circumference of the corrugated MPP pipe, resulting in a good fixing effect.

[0043] The working principle of the pipe grinding equipment for processing MPP cable protection pipes provided in this application is as follows: First, a corresponding standard belt 32 is selected according to the outer contour shape of the corrugated MPP pipe to be ground, and the standard belt 32 is installed on the synchronous frame 31. Then, the position of the grinding wheel 44 in the second direction is adjusted according to the diameter of the corrugated MPP pipe to be ground, so that the grinding wheel 44 contacts the outer peripheral side of the corrugated MPP pipe to be ground. During grinding, the operator first drives two support assemblies 23 to move in opposite directions along the first direction through two linear actuators 21, and places the MPP pipe to be ground between the two support assemblies 23. The operator then drives the two support assemblies 23 to move towards each other along the first direction through two linear actuators 21 until the support assemblies 23 extend into the MPP pipe to be ground. The operator randomly rotates the threaded sleeve 2321, so that the threaded sleeve 2321 moves away from the rotary actuator 22 along the first direction, and the sliding sleeve 2322 moves with the threaded sleeve 2321. Driven by the sliding sleeve 2322, multiple first hinge rods 2331, multiple second hinge rods 2332, and multiple third hinge rods 2333 drive multiple push rods 234 to unfold relative to the center rod 231 until the multiple push rods 234 press against the inner circumference of the corrugated MPP tube to be polished. The operator then drives the top support assembly 23 to rotate around the first direction via the rotary driver 22, and the corrugated MPP tube to be polished rotates around the first direction. The operator starts the rotary driver 45, and the grinding wheel 44 rotates around the first direction. The operator drives the linear driver 41, and the grinding wheel 44 moves along the first direction. During the polishing process, when the grinding wheel 44 is located in the tube groove, multiple protrusions 435 are located at the standard boss; conversely, when the grinding wheel 44 is located on the surface of the tube boss, multiple protrusions 435 are located in the standard groove 34. Furthermore, guided by the ridge 435 and the standard boss, the grinding wheel 44 moves in the first direction while simultaneously moving towards the fixing mechanism 2 in the second direction until it is fully inserted into the tube groove. Guided by the tube boss and itself, the grinding wheel 44 moves in the first direction while simultaneously moving away from the fixing mechanism 2 in the second direction until it is completely removed from the tube groove. This process is repeated until polishing is complete.

[0044] One or more embodiments in this application are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of this application. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of one or more embodiments in this application should be included within the protection scope of this application.

Claims

1. A pipe body polishing device for processing MPP cable protection pipes, characterized in that, include: Base; Both fixing mechanisms are mounted on the base; The fixing mechanism includes a linear driver, a rotary driver, and a top support assembly. The linear driver is mounted on the base, the rotary driver is mounted on the linear driver and moves along a first direction under the drive of the linear driver, and the top support assembly is mounted on the rotary driver and rotates around the first direction under the drive of the rotary driver. A synchronization mechanism includes a synchronization frame, a standard belt, multiple standard protrusions, and multiple standard grooves. The synchronization frame is mounted on the machine base, the standard belt is mounted on the synchronization frame, and the multiple standard protrusions are formed on the standard belt and are correspondingly arranged with the tube grooves, and their cross-sectional shapes are consistent with those of the tube grooves. The standard grooves are formed between any two adjacent standard protrusions and are correspondingly arranged with the tube protrusions, and their cross-sectional shapes are consistent with those of the tube protrusions. A polishing mechanism includes a second linear actuator, a guide block, a polishing frame, a grinding wheel, and a second rotary actuator. The second linear actuator is mounted on the machine base. The guide block is mounted on the second linear actuator and moves along a first direction under the drive of the second linear actuator. The polishing frame is mounted on the guide block and moves along the outer contour of the corrugated MPP tube under the action of multiple standard protrusions and multiple tube protrusions. The grinding wheel is mounted on the polishing frame. The second rotary actuator is mounted on the polishing frame and is used to drive the grinding wheel to rotate around the first direction.

2. The pipe body polishing equipment for processing MPP cable protection pipes as described in claim 1, characterized in that, The polishing frame includes multiple guide rods, a fixing plate, multiple adjusting members, a fixing plate, and multiple protrusions. The multiple guide rods are all inserted through the guide block. The fixing plate is connected to one end of the multiple guide rods near the fixing mechanism. The multiple adjusting members are all installed on the fixing plate. The fixing plate is installed on the multiple adjusting members and is located between the standard belt and the fixing plate. The multiple protrusions are formed on the side of the fixing plate facing the standard belt.

3. The pipe body polishing equipment for processing MPP cable protection pipes as described in claim 2, characterized in that, The adjusting component includes a screw, a first nut, and a second nut. The screw is connected to the first fixing plate. The first nut is screwed onto the screw and is located on the side of the second fixing plate facing the first fixing plate. The second nut is screwed onto the screw and is located on the side of the second fixing plate facing the standard belt.

4. The pipe body polishing equipment for processing MPP cable protection pipes as described in claim 3, characterized in that, The guide block has multiple notches, and each of the multiple notches corresponds to one of the multiple screws.

5. The pipe body polishing equipment for processing MPP cable protection pipes as described in claim 1, characterized in that, The length of the standard strip in the first direction is greater than the length of the corrugated MPP tube in the first direction.

6. The pipe body polishing equipment for processing MPP cable protection pipes as described in claim 1, characterized in that, The polishing frame also includes two mounting plates, both of which are formed on the fixing plate.

7. The pipe body polishing equipment for processing MPP cable protection pipes as described in claim 1, characterized in that, The synchronization mechanism also includes multiple guide rods, which are all installed on the synchronization frame and pass through the guide block.

8. The pipe body polishing equipment for processing MPP cable protection pipes as described in claim 1, characterized in that, The top support assembly includes a central rod, an active member, multiple driven members, and multiple top rods. The central rod is mounted on the rotary actuator. The active member is sleeved on the central rod. The multiple driven members are all mounted on the central rod. The multiple top rods are respectively mounted on the ends of the multiple driven members away from the central rod and are configured to converge towards each other or expand away from each other through the active member and the multiple driven members.

9. The pipe body polishing equipment for processing MPP cable protection pipes as described in claim 8, characterized in that, The top support assembly also includes a threaded section, which is formed on the central rod; The driving component includes a threaded sleeve and a sliding sleeve. The threaded sleeve is fitted onto the central rod and screwed onto the threaded section. The sliding sleeve is fitted onto the central rod and moves away from the rotary driver along a first direction under the drive of the threaded sleeve.

10. The pipe body polishing equipment for processing MPP cable protection pipes as described in claim 9, characterized in that, The driven member includes a first hinge rod, a second hinge rod, and at least one third hinge rod. The first hinge rod is hinged between the top rod and the threaded sleeve. The second hinge rod is hinged between the center rod and the top rod, and together with the center rod and the first hinge rod, they form an isosceles triangle structure. At least one third hinge rod is hinged between the center rod and the top rod, and together with the center rod, the top rod, and the second hinge rod, they form a parallelogram mechanism.

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