Cutting device and mpp pipe
By using a flipping plate to drive the roller in the MPP pipe cutting device to clamp the inner and outer peripheral walls, the problem of axial displacement caused by vibration during the MPP pipe cutting process is solved, and the flatness of the cut surface and the efficiency of disassembly and assembly are improved.
Patent Information
- Application Number
- CN202520113691.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-17
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2035-01-17
AI Technical Summary
In existing technologies, MPP pipes are prone to axial displacement due to vibration during the cutting process, resulting in uneven cut surfaces.
A cutting device comprising a worktable, a first clamping assembly, and a second clamping assembly is used. The roller is driven to move along the axial direction of the pipe by a flipping plate, thereby achieving bidirectional clamping and fixing of the inner and outer peripheral walls of the pipe. The first clamping assembly acts on the outer peripheral wall of the pipe, and the second clamping assembly acts on the inner peripheral wall, providing clamping forces from the outside to the inside and from the inside to the outside.
It improves the fixing effect of pipes, reduces axial displacement during the cutting process, improves the flatness of the cut surface, and increases the efficiency of pipe assembly and disassembly.
Smart Images
Figure CN223802673U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the device technical field of mpp pipe processing, especially relates to a cutting device and mpp pipe. BACKGROUND
[0002] MPP pipe is also called MPP power cable protection pipe, has the characteristics of high temperature resistance and external pressure resistance. In the prior art, a clamp acting on the outer peripheral wall of the pipe material is used to realize the fixation during the pipe material cutting process, but this fixation mode has the following disadvantages: the pipe material is easily axially deviated due to the vibration during cutting, thereby causing poor flatness of the cutting surface. UTILITY MODEL CONTENTS
[0003] In order to overcome the shortcomings and deficiencies in the prior art, the first purpose of the utility model is to provide a cutting device, which comprises a workbench, a first clamping assembly and a second clamping assembly. The first clamping assembly comprises a base arranged on the workbench and a top cover hingedly connected with the base. When the top cover is flipped downward, it can clamp the outer peripheral wall of the pipe material. The second clamping assembly comprises an assembly seat slidingly connected to the workbench. The assembly seat can move back and forth along the axial direction of the pipe material. Three flipping plates are arranged on the assembly seat. Rollers arranged along the axial direction of the pipe material are rotatably connected to the flipping plates. The flipping plates can drive the rollers to flip in the inner cavity of the pipe material. When the three flipping plates are flipped outward respectively, the three rollers expand along the radial direction of the pipe material and abut against the inner peripheral wall of the pipe material. When the three flipping plates are flipped inward respectively, the three rollers are retracted along the radial direction of the pipe material.
[0004] Optionally, two groups of the second clamping assemblies are arranged on the workbench and act on the two ends of the pipe material respectively.
[0005] Optionally, the second clamping assembly further comprises a sliding table air cylinder, which is arranged on the workbench along the radial direction of the pipe material. The assembly seat comprises a connecting plate and a triangular support plate. The connecting plate is connected with the sliding table of the sliding table air cylinder. The support plate is vertically arranged on the top of the connecting plate. The three flipping plates are arranged in a triangular array at one end of the support plate close to the pipe material.
[0006] Optionally, the second clamping assembly further comprises a rotary air cylinder corresponding to each flipping plate. The rotary air cylinder comprises a body connected with the support plate and a rotatable rotary disc. The outer end of the rotary disc is provided with a D-shaped rotating shaft. The flipping plate is drivingly connected with the rotary air cylinder through the D-shaped rotating shaft.
[0007] Optionally, the second clamping assembly further comprises a limiting structure, which is arranged on the rotary cylinder and capable of limiting the rotation angle of the rotary disc to 0° or 180°.
[0008] Optionally, the limiting structure comprises a swing arm outwardly arranged on the outer periphery of the rotary disc, and a pair of oil pressure buffers arranged on the rotary cylinder.
[0009] Optionally, the outer periphery wall of the roller is covered with a rubber layer.
[0010] Optionally, the top of the base is provided with a first semicircular groove, the bottom of the top cover is provided with a second semicircular groove, and the inner wall of the first semicircular groove is covered with a rubber layer.
[0011] Optionally, further comprising a hanging bracket arranged on the workbench, the hanging bracket is provided with a lifting seat capable of lifting along the radial direction of the pipe, and the lifting seat is provided with a cutting knife.
[0012] The second object of the utility model is to provide a kind of mpp pipe, which is processed by the cutting device.
[0013] The working principle of the utility model is as follows: during cutting, first, the pipe to be cut is placed on the base and covered with the top cover to achieve primary fixation of the pipe, then the assembly seat drives the three rollers to move along the axial direction towards the end close to the pipe, and subsequently the three turning plates are turned outwards respectively, so that the three rollers are expanded along the radial direction of the pipe and abut against the inner periphery wall of the pipe to achieve secondary fixation of the pipe; after cutting is completed, the three turning plates are turned inwards respectively, so that the three rollers are retracted along the radial direction of the pipe, and then the assembly seat drives the three rollers to move along the axial direction away from the end of the pipe.
[0014] The utility model has the advantages that: the first clamping assembly acts on the outer periphery wall of the pipe, and the second clamping assembly acts on the inner periphery wall of the pipe, to provide the pipe to be cut with clamping force from outside to inside and clamping force from inside to outside, thereby improving the fixation effect of the pipe and reducing the axial deviation of the pipe caused by vibration during cutting, which is conducive to improving the flatness of the pipe cutting surface; the three rollers are retracted inwards by the three turning plates, and the assembly seat drives the three rollers to move along the axial direction of the pipe, which is conducive to improving the disassembly and assembly efficiency of the pipe. BRIEF DESCRIPTION OF DRAWINGS
[0015] In order to more clearly illustrate the technical solutions in the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor.
[0016] Fig. 1 The structural schematic view of the cutting device is provided for the embodiment of the utility model.
[0017] Fig. 2 The structural schematic view of the second clamping assembly is provided for the embodiment of the utility model.
[0018] Fig. 3 The expansion cut view of the second clamping assembly is provided for the embodiment of the utility model.
[0019] Fig. 4 The contraction cut view of the second clamping assembly is provided for the embodiment of the utility model.
[0020] Fig. 5 The installation schematic view of the cutting knife is provided for the embodiment of the utility model.
[0021] In the drawings, various reference signs represent:
[0022] 10 - workbench 20 - first clamping assembly 30 - second clamping assembly
[0023] 11 - suspension support 12 - lifting seat 13 - cutting knife
[0024] 21 - base 211 - first semicircular groove 22 - top cover
[0025] 221 - second semicircular groove 31 - assembly seat 311 - connecting plate
[0026] 312 - supporting plate 32 - turning plate 33 - roller
[0027] 34 - sliding table cylinder 35 - rotating cylinder 351 - rotating disc
[0028] 352 - D-shaped rotating shaft 36 - limiting structure 361 - swing arm
[0029] 362 - oil pressure buffer 40 - mpp pipe. DETAILED DESCRIPTION
[0030] The embodiments of the utility model are described in detail below, and the examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the embodiments of the utility model, and cannot be understood as the limitation of the utility model.
[0031] In the description of the embodiments of the utility model, it is understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the utility model and simplifying the description, and do not indicate or imply that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.
[0032] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the embodiments of the utility model, the meaning of "multiple" is two or more, unless otherwise specifically limited.
[0033] In the embodiments of the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the embodiments of the utility model can be understood according to the specific circumstances.
[0034] In the embodiments of the utility model, as Figs. 1-5As shown, a cutting device is provided, comprising a workbench 10, a first clamping assembly 20, and a second clamping assembly 30. The first clamping assembly 20 comprises a base 21 arranged on the workbench 10 and a cover 22 hingedly connected to the base 21. When the cover 22 is flipped down, it can clamp the outer peripheral wall of the pipe. The second clamping assembly 30 comprises an assembly seat 31 slidably connected to the workbench 10. The assembly seat 31 can move back and forth along the axial direction of the pipe. The assembly seat 31 is provided with three flipping plates 32. The flipping plates 32 are rotatably connected to rollers 33 arranged along the axial direction of the pipe. The flipping plates 32 can drive the rollers 33 to flip in the inner cavity of the pipe. When the three flipping plates 32 are flipped outward respectively, the three rollers 33 expand along the radial direction of the pipe and abut against the inner peripheral wall of the pipe. When the three flipping plates 32 are flipped inward respectively, the three rollers 33 are retracted along the radial direction of the pipe. During cutting, the pipe to be cut is first placed on the base 21 and covered with the cover 22 to fix the pipe. Then, the assembly seat 31 drives the three rollers 33 to move along the axial direction towards one end of the pipe. Subsequently, the three flipping plates 32 are flipped outward respectively, so that the three rollers 33 expand along the radial direction of the pipe and abut against the inner peripheral wall of the pipe to fix the pipe again. After cutting is completed, the three flipping plates 32 are flipped inward respectively, so that the three rollers 33 are retracted along the radial direction of the pipe. Then, the assembly seat 31 drives the three rollers 33 to move along the axial direction away from one end of the pipe.
[0035] In this embodiment, the second clamping assembly 30 is provided in two groups. The two groups of second clamping assemblies 30 are oppositely arranged on the workbench 10 and act on the two ends of the pipe respectively. The two groups of second clamping assemblies 30 simultaneously act on the inner cavity wall of the pipe, which further improves the fixing effect on the pipe.
[0036] In this embodiment, the second clamping assembly 30 further comprises a sliding table air cylinder 34 arranged on the workbench 10 along the radial direction of the pipe. The assembly seat 31 comprises a connecting plate 311 and a triangular support plate 312. The connecting plate 311 is connected to the sliding table of the sliding table air cylinder 34. The support plate 312 is vertically arranged on the top of the connecting plate 311. The three flipping plates 32 are arranged in a triangular array on one end of the support plate 312 close to the pipe. Specifically, during cutting, the sliding table of the sliding table air cylinder 34 slides inward, driving the three rollers 33 retracted inward to insert into the inner cavity of the pipe. After cutting, the sliding table of the sliding table air cylinder 34 slides outward, driving the three rollers 33 retracted inward to withdraw from the inner cavity of the pipe.
[0037] In the embodiment, the second clamping assembly 30 further comprises a rotating cylinder 35 corresponding to each of the turning plates 32. The rotating cylinder 35 comprises a body connected to the supporting plate 312 and a rotatable rotating disc 351. The outer end of the rotating disc 351 is provided with a D-shaped rotating shaft 352. The turning plate 32 is in driving connection with the rotating cylinder 35 through the D-shaped rotating shaft 352. Specifically, the turning plate 32 is in L shape. The vertical section of the turning plate 32 is connected to the D-shaped rotating shaft 352 through a screw. The horizontal section is provided with a rectangular hollow slot. A rotating rod is arranged in the rectangular hollow slot. The roller 33 is arranged in the rectangular hollow slot in a rollable manner through the rotating rod.
[0038] In the embodiment, the second clamping assembly 30 further comprises a limiting structure 36 arranged on the rotating cylinder 35 and capable of limiting the rotation angle of the rotating disc 351 to 0° or 180°. The limiting structure 36 is used to realize the positioning of the three rollers 33 in the expanded state and the positioning of the three-roller 33 in the folded state.
[0039] In the embodiment, the limiting structure 36 comprises a swing arm 361 outwardly arranged on the outer periphery of the rotating disc 351 and a pair of oil pressure buffers 362 arranged on the rotating cylinder 35. Specifically, the limiting structure 36 further comprises a connecting strip arranged along the length direction of the cylinder body of the rotating cylinder 35. The pair of oil pressure buffers 362 are oppositely arranged at the two ends of the connecting strip, which is conducive to reducing the noise caused by the collision of the swing arm 361 in the rotating pipe.
[0040] In the embodiment, the outer peripheral wall of the roller 33 is covered with a rubber layer. Specifically, the rubber layer is fixed to the outer peripheral wall of the roller 33 through glue, which improves the friction force of the outer peripheral wall of the pipe in the axial direction and reduces the possibility of scratching the inner wall of the pipe during the turning process of the roller 33.
[0041] In the embodiment, the top of the base 21 is provided with a first semicircular slot 211. The bottom of the top cover 22 is provided with a second semicircular slot 221. The inner wall of the first semicircular slot 211 is covered with a rubber layer. Specifically, the base 21 and the top cover 22 are fixed or separated at the end away from the hinge shaft through a screw. The rubber layer is fixed to the inner wall of the roller 33 through glue, which improves the friction force of the outer peripheral wall of the pipe in the axial direction.
[0042] The embodiment further comprises a hanging support 11 arranged on the workbench 10, the hanging support 11 is provided with a lifting seat 12 capable of lifting along the radial direction of the pipe, and the lifting seat 12 is provided with a cutting knife 13. Specifically, the embodiment further comprises a servo motor and a lifting slider arranged on the lifting seat 12, the output shaft of the servo motor is in transmission connection with a lead screw, the inner side of the lifting slider is provided with a lead screw nut in thread cooperation with the lead screw, the lifting seat 12 is provided with a vertically arranged sliding rail, the lifting slider is in sliding connection with the lifting seat 12 through the sliding rail, and the outer side of the lifting slider is outwardly provided with a mounting plate, the cutting knife 13 is arranged at the free end of the mounting plate and is suspended above the pipe to be cut through the mounting plate.
[0043] The embodiment further provides an mpp pipe 40 processed by the cutting device. The first clamping assembly 20 acts on the outer peripheral wall of the pipe, and the second clamping assembly 30 acts on the inner peripheral wall of the pipe, so that the pipe to be cut is provided with clamping forces from outside to inside and from inside to outside, thereby improving the fixing effect on the pipe, reducing the axial deviation of the pipe caused by vibration during the cutting process, and improving the flatness of the pipe cutting surface.
[0044] The above only describes the preferred embodiment of the utility model, and does not limit the utility model, and any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model.
Claims
1. A cutting device, characterized by: The utility model provides a cutting device for pipe, including workbench, first clamping component, second clamping component, first clamping component includes the base of being located workbench, and the top cover is hinged with base, when top cover is turned down, can clamp the outer peripheral wall of pipe, second clamping component includes the assembly seat of sliding connection in workbench, the assembly seat can reciprocate along the axial movement of pipe, the assembly seat is equipped with three turning plates, the turning plate is rotatably connected with the axle of being arranged along the axial of pipe, the turning plate can drive axle turn in the inner chamber of pipe, when three turning plates respectively turn outward, three axles are expanded along the radial of pipe and with the inner peripheral wall of pipe, when three turning plates respectively turn inward, three axles are gathered along the radial of pipe.
2. A cutting device according to claim 1, characterized in that: The second clamping component is provided with two groups, and the two groups of the second clamping component are oppositely provided on the workbench and respectively act on the two ends of the pipe.
3. The cutting device of claim 1, wherein: The second clamping component further comprises a slide cylinder, the slide cylinder is provided on the workbench along the radial of the pipe, the assembly seat comprises a connecting plate and a triangular supporting plate, the connecting plate is connected with the slide of the slide cylinder, the supporting plate is vertically arranged on the top of the connecting plate, and three turning plates are arranged in a triangular array on one end of the supporting plate close to the pipe.
4. A cutting device according to claim 3, wherein: The second clamping component further comprises a rotary cylinder corresponding to the turning plate, the rotary cylinder comprises a body connected with the supporting plate and a rotatable rotary disc, the outer end of the rotary disc is provided with a D-shaped rotating shaft, and the turning plate is drivingly connected with the rotary cylinder through the D-shaped rotating shaft.
5. A cutting device according to claim 4, wherein: The second clamping component further comprises a limiting structure provided on the rotary cylinder and capable of limiting the rotation angle of the rotary disc to 0° or 180°.
6. A cutting device according to claim 5, wherein: The limiting structure comprises an arm outwardly provided on the outer periphery of the rotary disc and a pair of oil buffers provided on the rotary cylinder.
7. The cutting device of claim 1, wherein: The outer periphery of the axle is covered with a rubber layer.
8. The cutting device of claim 1, wherein: The top of the base is provided with a first semicircular groove, the bottom of the top cover is provided with a second semicircular groove, and the inner wall of the first semicircular groove is covered with a rubber layer.
9. The cutting device of claim 1, wherein: The cutting device is made by any one of claims 1-9.
10. An mpp tube characterized in that, The cutting device is made by any one of claims 1-9.