A device for polishing the end of an HDPE pipe

Abstract

The utility model discloses a kind of HDPE tubular product pipe orifice polishing device, it is related to polishing device technical field.The utility model includes support frame and the tubular product being set in the upper portion of support frame, further include: processing part, the processing part is installed on support frame;Fixed part, the fixed part is set on support frame;The processing part includes polishing assembly, and the polishing assembly is set on support frame;Clamping assembly, and the clamping assembly is installed on support frame;The polishing assembly includes fixed ring fixedly connected on support frame, and the fixed ring inner wall is slidably connected with sliding ring, and spring one is arranged in the fixed ring inner.The utility model is by being arranged processing part, solved the existing polishing device in use process, lack of targeted clamping positioning structure, tubular product will be offset in polishing, further exacerbate pipe orifice flatness error, it can also lead to polishing range exceed preset area, damage pipe orifice original end face morphology problem.

Description

Technical Field

[0001] This utility model belongs to the technical field of grinding devices, and in particular relates to a grinding device for the pipe ends of HDPE pipes. Background Technology

[0002] As the application of HDPE pipes in municipal water supply and drainage, gas transmission, chemical fluid transportation and agricultural irrigation continues to expand, the market's requirements for their connection quality are also constantly increasing. As a key pre-process to ensure the sealing and firmness of hot melt or electrofusion connections, the efficiency and precision of pipe end grinding have gradually become the core factors restricting the industry's large-scale production. Currently, the traditional manual hand-held angle grinder and sandpaper grinding method still dominates the industry. This method not only requires 1-2 people to complete the processing of a single pipe end, taking as long as 5-10 minutes, which is difficult to adapt to the continuous operation rhythm of the production line, but also frequently causes problems such as bevel angle deviation and uneven end face due to the reliance on experience in operation, directly increasing the leakage risk and rework rate of subsequent connections.

[0003] However, existing grinding devices lack a targeted clamping and positioning structure during use, causing the pipe to shift during grinding, which further exacerbates the pipe end flatness error and causes the grinding range to exceed the preset area, damaging the original end face shape of the pipe. Utility Model Content

[0004] The purpose of this utility model is to provide a grinding device for HDPE pipe ends. By setting up a processing part, it solves the problem that existing grinding devices lack a targeted clamping and positioning structure during use, causing the pipe to shift during grinding, further aggravating the pipe end flatness error, and also causing the grinding range to exceed the preset area, thus damaging the original end face shape of the pipe end.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model relates to a grinding device for HDPE pipe ends, comprising a support frame and a pipe disposed above the support frame, and further comprising: a processing part mounted on the support frame; a fixing part disposed on the support frame; the processing part including a grinding assembly disposed on the support frame; and a clamping assembly mounted on the support frame; the grinding assembly including a fixed ring fixedly connected to the support frame, a sliding ring slidably connected to the inner wall of the fixed ring, a spring disposed inside the fixed ring, the rear side of the spring being fixedly connected to the sliding ring, the front side of the spring being fixedly connected to the fixed ring, a rotating shaft rotatably connected to the fixed ring, a grinding roller fixedly connected to the rear side of the rotating shaft, and a power component disposed on the fixed ring, the grinding roller being adapted to the sliding ring; the power component including a motor fixedly connected to the front side of the fixed ring, the output shaft of the motor being fixedly connected to the rotating shaft via a coupling, and the motor being fixedly connected to the fixed ring via a motor bracket.

[0006] Furthermore, the fixing part includes a sliding component disposed on the support frame; and an adapter component mounted on the support frame, both the sliding component and the adapter component being located on the support frame.

[0007] Furthermore, the clamping assembly includes two pairs of rings disposed on the rear side of the first spring. Two hinge blocks are hinged on the lower pair of rings. The top of each of the two hinge blocks is rotatably connected to a threaded rod. The outer walls of each of the two threaded rods are slidably connected to two connecting rings. The outer walls of each of the two threaded rods are fitted with a second spring. The second spring is fixedly connected to several connecting rings respectively. The outer walls of each of the two threaded rods are provided with threaded components. The two pairs of rings are fully adapted to the sliding rings. The threaded components include two hexagonal blocks that are threadedly connected to the outer walls of the two threaded rods respectively. The two hexagonal blocks are in contact with the two connecting rings located above. The hexagonal blocks are hexagonal in shape.

[0008] Furthermore, the sliding assembly includes a slide groove formed on the support frame, the inner wall of the slide groove is rotatably connected to a bidirectional threaded rod, the bidirectional threaded rod extends out of the slide groove, the outer wall of the bidirectional threaded rod is threadedly connected to two sliders one, the outer wall of the bidirectional threaded rod is slidably connected to slider two, and the outer wall of the bidirectional threaded rod is fitted with two springs three, the two springs three being fixedly connected to sliders one on the side away from each other, and the two springs three being fixedly connected to sliders two on the side close to each other, the two sliders two being T-shaped.

[0009] Furthermore, the adapter component includes two limiting rods 1 fixedly connected to the top of the two sliders 2, a plurality of limiting rods 2 fixedly connected to the top of the support frame, a power component 2 provided on the support frame, the two limiting rods 1 being distributed in opposite directions, the power component 2 including a motor 2 fixedly connected to the support frame, the output shaft of the motor 2 being fixedly connected to a bidirectional threaded rod through a coupling, and the motor 2 being fixedly connected to the support frame through a motor bracket.

[0010] This utility model has the following beneficial effects: 1. By setting up a processing unit, the pipe is first fitted with a fixed ring as a reference and aligned with the grinding roller to form an initial positioning; the sliding ring is pulled to slide within the fixed ring and stretch spring one, leaving adjustment space for the pipe; then, the pipe is wrapped with two matching rings, and the threaded rod is embedded into the corresponding groove. The hexagonal block is rotated to slide downwards, squeezing the connecting ring and spring two, using elastic potential energy to convert into clamping force, and completing the rigid fixation of the pipe; finally, motor one drives the grinding roller to rotate at high speed to perform grinding operations on the pipe opening covered by the sliding ring. The entire process forms a closed loop through the sliding, elastic deformation and power transmission of the mechanical structure, ensuring the uniformity of grinding force and speed, making the surface roughness of the pipe opening consistent, effectively removing oxide layer and burrs, and providing a smooth and clean contact surface for subsequent welding; 2. By setting up a fixing part, the pipe is first placed on several limiting rods 2 to form a bottom support positioning; after starting motor 2, its power is transmitted to the bidirectional threaded rod, which drives the two sliders 1 to slide in opposite directions along the threaded rod; when slider 1 slides, it is pulled by spring 3 to move slider 2 synchronously. As slider 2 approaches each other, it pushes limiting rod 1 to move towards the pipe and contact it. Finally, through the synergistic effect of the "lateral clamping" of limiting rod 1 and the "bottom support" of limiting rod 2, the pipe is fixed in all directions. This can effectively limit the radial and axial displacement of the pipe in the subsequent grinding, provide a foundation for stable grinding, and indirectly ensure the uniformity of the pipe end grinding.

[0011] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a partial cross-sectional view of the processing part of this utility model; Figure 3 This is a partial cross-sectional view of the grinding component of this utility model; Figure 4 This is a partial cross-sectional view of the fixing part of this utility model; Figure 5 This is a partial cross-sectional view of the clamping assembly of this utility model; Figure 6 This utility model Figure 4 A magnified structural diagram of A in the middle.

[0014] The attached diagram lists the components represented by each number as follows: 111. Support frame; 112. Pipe; 2. Machining section; 21. Grinding assembly; 211. Fixing ring; 212. Sliding ring; 213. Spring 1; 214. Rotating shaft; 215. Grinding roller; 216. Motor 1; 22. Clamping assembly; 221. Matching ring; 222. Hinge block; 223. Threaded rod; 224. Connecting ring; 225. Spring 2; 226. Hexagonal block; 3. Fixing section; 31. Sliding assembly; 311. Slide groove; 312. Bidirectional threaded rod; 313. Slider 1; 314. Slider 2; 315. Spring 3; 32. Adaptor assembly; 321. Limiting rod 1; 322. Limiting rod 2; 323. Motor 2. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figure 1-6 As shown, this utility model is a device for grinding the pipe end of HDPE pipe, including a support frame 111 and a pipe 112 disposed above the support frame 111, and also includes: a processing part 2, which is installed on the support frame 111; and a fixing part 3, which is disposed on the support frame 111. Processing unit 2 includes a grinding assembly 21, which is mounted on a support frame 111; and a clamping assembly 22, which is also mounted on the support frame 111. The grinding assembly 21 includes a fixing ring 211 fixedly connected to the support frame 111, a sliding ring 212 slidably connected to the inner wall of the fixing ring 211, and a spring 213 disposed inside the fixing ring 211. The rear side of the spring 213 is fixedly connected to the sliding ring 212, and the front side of the spring 213 is fixedly connected to the fixing ring 211. A fixed connection is established, with a rotating shaft 214 rotatably connected to the fixed ring 211. A grinding roller 215 is fixedly connected to the rear side of the rotating shaft 214. A power component is provided on the fixed ring 211. The grinding roller 215 is adapted to the sliding ring 212. The power component includes a motor 216 fixedly connected to the front side of the fixed ring 211. The output shaft of the motor 216 is fixedly connected to the rotating shaft 214 via a coupling. The motor 216 is fixedly connected to the fixed ring 211 via a motor bracket. The clamping assembly 22 includes... The device includes two matching rings 221 located behind spring 213. Two hinge blocks 222 are hinged to the lower matching ring 221. Threaded rods 223 are rotatably connected to the top of each of the two hinge blocks 222. Two connecting rings 224 are slidably connected to the outer walls of each of the two threaded rods 223. Springs 225 are fitted onto the outer walls of each of the two threaded rods 223. Each spring 225 is fixedly connected to several connecting rings 224. Threaded components are provided on the outer walls of each of the two threaded rods 223. The two matching rings 221 are fully adapted to the sliding ring 212. The threaded components include two hexagonal blocks 226 threadedly connected to the outer walls of the two threaded rods 223. The two hexagonal blocks 226 are in contact with the two connecting rings 224 located above. The hexagonal blocks 226 are hexagonal in shape. By setting the processing part 2, the uniformity of grinding force and speed is ensured, resulting in a consistent surface roughness of the pipe opening. This effectively removes the oxide layer and burrs, providing a smooth and clean contact surface for subsequent welding.

[0017] The fixing part 3 includes a sliding assembly 31, which is mounted on the support frame 111; and an adapter assembly 32, which is mounted on the support frame 111. Both the sliding assembly 31 and the adapter assembly 32 are located on the support frame 111. The sliding assembly 31 includes a groove 311 formed on the support frame 111. A bidirectional threaded rod 312 is rotatably connected to the inner wall of the groove 311. The bidirectional threaded rod 312 extends outside the groove 311. Two sliders 313 are threadedly connected to the outer wall of the bidirectional threaded rod 312. A slider 314 is slidably connected to the outer wall of the bidirectional threaded rod 312. Two springs 315 are sleeved on the outer wall of the bidirectional threaded rod 312. The sides of the two springs 315 that are far apart from each other are fixedly connected to the sliders 313. The two springs 315 are close to each other. The two sliders 314 are fixedly connected to the nearest side. The two sliders 314 are T-shaped. The adapter component 32 includes two limiting rods 321 fixedly connected to the top of the two sliders 314. Several limiting rods 322 are fixedly connected to the top of the support frame 111. A power component 2 is provided on the support frame 111. The two limiting rods 321 are distributed opposite to each other. The power component 2 includes a motor 323 fixedly connected to the support frame 111. The output shaft of the motor 323 is fixedly connected to the bidirectional threaded rod 312 through a coupling. The motor 323 is fixedly connected to the support frame 111 through a motor bracket. By setting the fixing part 3, the radial and axial displacement of the pipe in the subsequent grinding can be effectively limited, providing a basis for stable grinding and indirectly ensuring the uniformity of the pipe end grinding.

[0018] A specific application of this embodiment is as follows: In use, the pipe 112 is first placed on several limiting rods 322, and then the motor 323 is started. At this time, the motor 323 will rotate the bidirectional threaded rod 312. When the bidirectional threaded rod 312 rotates, it will cause two sliders 313 to move closer or further apart. When slider 313 slides, it will move along with spring 315 and slider 314. As slider 314 moves closer together, it will cause the limiting rod 321 to contact the pipe 112, thereby fixing the pipe 112 through the limiting rods 321 and 322. Then, the fixing ring 211 is put on the pipe 112 and the pipe 112 is aligned with the grinding roller 215. Then, the two matching rings 22 are... 1. Fix it to the pipe 112. When fixing, first pull the sliding ring 212 so that the sliding ring 212 slides in the fixed ring 211. When the sliding ring 212 slides, it will pull the spring 213. Then place the upper matching ring 221 on the pipe 112. Then place the corresponding threaded rod 223 in the corresponding groove of the matching ring 221. Then the hexagonal block 226 can be rotated. At this time, the hexagonal block 226 will slide down. When the hexagonal block 226 slides, it will squeeze the connecting ring 224 and the spring 225, thereby increasing the clamping force of the matching ring 221 on the pipe 112. Then start the motor 216. At this time, the motor 216 will drive the grinding roller 215 to rotate. At this time, the grinding roller 215 will grind the sliding ring 212.

[0019] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0020] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A device for grinding the ends of HDPE pipes, comprising a support frame (111) and a pipe (112) disposed above the support frame (111), characterized in that, Also includes: Processing unit (2), which is mounted on support frame (111); Fixing part (3), the fixing part (3) is provided on the support frame (111); The processing unit (2) includes a polishing assembly (21) mounted on a support frame (111); and A clamping assembly (22) is mounted on a support frame (111); The grinding assembly (21) includes a fixed ring (211) fixedly connected to a support frame (111), a sliding ring (212) slidably connected to the inner wall of the fixed ring (211), a spring (213) provided inside the fixed ring (211), the rear side of the spring (213) fixedly connected to the sliding ring (212), the front side of the spring (213) fixedly connected to the fixed ring (211), a rotating shaft (214) rotatably connected to the fixed ring (211), a grinding roller (215) fixedly connected to the rear side of the rotating shaft (214), and a power component (211) provided on the fixed ring (211). Among them, the grinding roller (215) is adapted to the sliding ring (212).

2. The HDPE pipe end grinding device according to claim 1, characterized in that, The fixing part (3) includes a sliding assembly (31), which is disposed on the support frame (111); and An adapter component (32) is mounted on a support frame (111); The sliding component (31) and the adapter component (32) are both located on the support frame (111).

3. The HDPE pipe end grinding device according to claim 2, characterized in that, The clamping assembly (22) includes two pairs of rings (221) disposed on the rear side of spring one (213). Two hinge blocks (222) are hinged on the lower pair of rings (221). The top of each of the two hinge blocks (222) is rotatably connected to a threaded rod (223). The outer walls of each of the two threaded rods (223) are slidably connected to two connecting rings (224). The outer walls of each of the two threaded rods (223) are fitted with spring two (225). The two spring two (225) are fixedly connected to several connecting rings (224) respectively. The outer walls of each of the two threaded rods (223) are provided with threaded parts. Among them, the two pairs of rings (221) are perfectly matched with the sliding ring (212).

4. The HDPE pipe end grinding device according to claim 3, characterized in that, The sliding assembly (31) includes a groove (311) formed on a support frame (111). The inner wall of the groove (311) is rotatably connected to a bidirectional threaded rod (312). The bidirectional threaded rod (312) extends to the outside of the groove (311). The outer wall of the bidirectional threaded rod (312) is threadedly connected to two sliders (313). The outer wall of the bidirectional threaded rod (312) is slidably connected to sliders (314). The outer wall of the bidirectional threaded rod (312) is fitted with two springs (315). The two springs (315) are fixedly connected to sliders (313) on the side that is far apart from each other. The two springs (315) are fixedly connected to sliders (314) on the side that is close to each other. Among them, the two sliders (314) are T-shaped.

5. The HDPE pipe end grinding device according to claim 4, characterized in that, The adapter component (32) includes two limiting rods (321) fixedly connected to the top of the two sliders (314), and a plurality of limiting rods (322) fixedly connected to the top of the support frame (111). A power component is provided on the support frame (111). Among them, the two limiting rods (321) are distributed in opposite directions.

6. The HDPE pipe end grinding device according to claim 5, characterized in that, The power component includes a motor (216) fixedly connected to the front side of the fixed ring (211), and the output shaft of the motor (216) is fixedly connected to the rotating shaft (214) through a coupling; Among them, motor one (216) is fixedly connected to the fixing ring (211) through the motor bracket.

7. The HDPE pipe end grinding device according to claim 6, characterized in that, The threaded component includes two hexagonal blocks (226) that are threaded to the outer walls of two threaded rods (223), and the two hexagonal blocks (226) respectively contact the two connecting rings (224) located above; Among them, the hexagonal block (226) is hexagonal in shape.

8. The HDPE pipe end grinding device according to claim 7, characterized in that, The second power component includes a second motor (323) fixedly connected to the support frame (111), and the output shaft of the second motor (323) is fixedly connected to a bidirectional threaded rod (312) via a coupling; Among them, motor 2 (323) is fixedly connected to support frame (111) through motor bracket.

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