PE gas pipe end chamfering device

Abstract

The utility model relates to a PE gas pipe port chamfering device belongs to gas pipeline chamfering technical field. Including main frame, slide bar, locking lever, slide and polishing block, the main frame is long rectangular body, and the symmetrical fixed positioning wing plate has one end of main frame, and the slide groove is set up along the length direction on main frame, and the slide bar is slidably embedded in the slide groove, and the adjusting groove is set up along the length direction on slide bar, and the locking lever is threadedly connected with main frame and is arranged in the adjusting groove, one end of slide bar is bended and extends to between two positioning wing plates, and the bended section of slide bar is provided with chamfering blade, and the slide inside is connected with slide bar between the extension spring, the device realizes the pipe precision centering through the 'eight' shape structure of positioning wing plate, realizes the flexible adjustment of processing position through the cooperation of slide bar and locking lever, guarantees the polishing adhesion stability with the aid of the elastic pressure of extension spring, ensures the polishing track even through the guiding effect of guide roller, and finally realizes the efficient, accurate chamfering and polishing of PE gas pipe port.

Description

Technical Field

[0001] The utility model relates to a PE gas pipe port chamfering device, which belongs to the technical field of gas pipe chamfering. Background Art

[0002] PE gas pipes are widely used in municipal gas transmission and other fields due to their advantages of corrosion resistance, good flexibility and long service life. In the process of installation and connection of PE gas pipes, to ensure connection sealing performance and installation convenience, it is necessary to perform chamfering treatment on the pipe port, remove port burrs and form an inclined surface with a preset angle.

[0003] The existing PE gas pipe port chamfering devices have many defects: First, most existing devices adopt a positioning structure with fixed size, and corresponding positioning molds need to be replaced for PE gas pipes with different pipe diameters, resulting in poor specification compatibility; Second, the processing procedures are redundant. The existing device only has a single chamfering function, burrs still remain on the end face of the PE gas pipe port after chamfering treatment, and an additional grinding process is required, which not only increases equipment input and labor cost, but also reduces the overall processing efficiency. Therefore, it is necessary to improve the existing device. Summary of the Invention

[0004] The purpose of the utility model is to provide a PE gas pipe port chamfering device that can realize adaptive positioning and clamping of PE gas pipes with various pipe diameters, ensure chamfering processing accuracy, complete deburring operation synchronously, reduce processing procedures, and improve processing efficiency and universality.

[0005] The technical scheme of the utility model is: A PE gas pipe port chamfering device comprises a main frame, a sliding rod, a locking rod, a sliding frame and a grinding block, and is characterized in that: the main frame is a long strip-shaped rectangular body, one end of the main frame is symmetrically and fixedly provided with positioning wing plates, and the cross sections of the two positioning wing plates are arranged in a splayed shape to adapt to the positioning of the PE gas pipe port; a sliding groove is formed in the main frame along the length direction, the sliding rod is slidably embedded in the sliding groove, an adjusting groove is formed in the sliding rod along the length direction, the locking rod penetrates through the adjusting groove and is in threaded connection with the main frame, and the relative position of the sliding rod and the main frame can be locked by screwing the locking rod; one end of the sliding rod is bent and extends between the two positioning wing plates, a chamfering blade is arranged on the bent section of the sliding rod, and the end head of the extension section of the sliding rod is in a U-shaped structure; the sliding frame is slidably sleeved on the U-shaped structure of the sliding rod, a guide roller is movably installed on the end head of the extension section, and a tension spring is connected between the inner side of the sliding frame and the groove wall of the U-shaped structure of the sliding rod; an assembly plate is fixedly installed at the top of the sliding frame, and the grinding block is fixedly clamped between the assembly plate and the sliding frame; an operating handle is fixedly installed at the other end of the sliding rod.

[0006] The cross section of the sliding frame is in a 冂-shaped structure, and an end of one end of the sliding frame is provided with a cavity for cooperating with the U-shaped structure of the locking rod.

[0007] A sliding plate is provided on the end face of the positioning wing plate.

[0008] The locking rod corresponding to the chamfering blade is provided with a discharge port.

[0009] The advantages of this utility model compared with the prior art are as follows: This PE gas pipe end chamfering device achieves precise pipe centering through the "eight"-shaped structure of the positioning wing plate, flexibly adjusts the processing position by using the cooperation of the sliding rod and locking rod, ensures grinding stability by the elastic pressure of the tension spring, and ensures uniform grinding trajectory by the guiding action of the guide roller. Finally, it achieves efficient and precise chamfering grinding of PE gas pipe ends. The overall structure is simple and easy to operate, and it is suitable for processing PE gas pipes of different diameters. Attached Figure Description

[0010] Figure 1 This is a three-dimensional structural diagram of the present invention in operation; Figure 2 for Figure 1 A schematic diagram of the three-dimensional structure from another perspective; Figure 3 for Figure 1 Side view structural diagram; Figure 4 for Figure 1 A schematic diagram of the three-dimensional structure viewed from below.

[0011] In the diagram: 1. Main frame; 2. Slide rod; 3. Locking rod; 4. Slide carriage; 5. Grinding block; 6. Positioning wing plate; 7. Slide plate; 8. Adjustment groove; 9. Operating handle; 10. Chamfering blade; 11. Discharge port; 12. Guide roller; 13. Tension spring; 14. Assembly plate; 15. PE gas pipe to be processed. Detailed Implementation

[0012] As attached Figure 1-4 As shown The PE gas pipe port chamfering device includes a main frame 1, a slide bar 2, a locking bar 3, a slide 4, and a grinding block 5. The main frame 1 is an integrally formed long rectangular structure. A positioning wing plate 6 is symmetrically fixedly installed at one end of the main frame 1. The positioning wing plate 6 is made of rectangular metal plate and is fixed to the main frame 1 by welding to ensure a firm connection.

[0013] A sliding plate 7 is fixed to the end face of the positioning wing plate 6 by adhesive bonding. The purpose of setting the sliding plate 7 is to reduce the frictional resistance between the positioning wing plate 6 and the outer circle of the PE gas pipe during the positioning process and avoid scratching the outer surface of the pipe. The sliding plate 7 is made of polytetrafluoroethylene, which can greatly reduce contact friction by utilizing its excellent self-lubricating properties.

[0014] The cross-sections of the two positioning wing plates 6 are arranged in a figure-eight shape. The larger end of the figure-eight structure faces outward, which facilitates the quick insertion and positioning of the PE gas pipe port. The figure-eight structure can achieve accurate positioning of PE gas pipe ports of different diameters, ensuring that the pipe axis is consistent with the baseline of the subsequent grinding operation.

[0015] A groove is provided along the length of the main frame 1, and the slide rod 2 is slidably fitted into the groove. The groove is preferably a "T" shaped groove. The cross-sectional shape of the slide rod 2 is adapted to the groove to prevent the slide rod 2 from shifting or falling off during sliding. At the same time, a grease layer is coated between the mating surfaces of the slide rod 2 and the groove to further improve the smoothness of the slide rod 2.

[0016] The slide rod 2 has a long, waist-shaped adjustment groove 8 along its length. The adjustment groove 8 provides sliding adjustment space for the locking rod 3. The locking rod 3 passes through the adjustment groove 8 of the slide rod 2. The locking rod 3 has an outer boss on its circumference, and the middle part of the locking rod 3 is threadedly connected to the main frame 1 through a threaded hole. By turning the locking rod 3, its relative fixation or loosening with the main frame 1 can be achieved. In turn, the friction between the outer boss of the locking rod 3 and the slide rod 2 can be used to lock or unlock, thereby adjusting the relative position between the slide rod 2 and the main frame 1 so as to adjust the extension distance of the slide rod 2 according to the thickness requirements of the PE gas pipe.

[0017] One end of the slide bar 2 is bent and extends between the two positioning wing plates 6. A chamfering blade 10 is provided on the bent section of the slide bar 2. A discharge port 11 is provided on the locking rod 3 corresponding to the chamfering blade 10. The discharge port 11 facilitates the discharge of the cut waste material.

[0018] Furthermore, the end of the extension section is U-shaped; the cross section of the slide 4 is U-shaped, and one end of the slide 4 is provided with a cavity for engaging with the slide rod 2 in a U-shaped structure. The slide 4 slides onto the U-shaped structure of the slide rod 2 through the cavity at its end, thus achieving a sliding engagement between the slide 4 and the slide rod 2.

[0019] To improve the guiding performance of the slide bar 2 during rotation, a guide roller 12 is movably installed on the extension section of the slide bar 2 via a rotating shaft. The guide roller 12 can rotate freely around the rotating shaft. In use, the guide roller 12 can fit against the inner wall of the PE gas pipe opening, forming a stable guide for the slide bar 2 and ensuring that it can rotate smoothly around the pipe opening.

[0020] A tension spring 13 is connected between the bottom surface of the cavity of the slide 4 and the groove wall of the "U"-shaped structure of the slide rod 2. Both ends of the tension spring 13 are detachably connected to the slide 4 and the slide rod 2 through hooks, which facilitates later maintenance and replacement. When the tension spring 13 is in the contracted state, it can apply a continuous elastic tension to the slide 4 to ensure that the grinding block 5 fits the chamfered surface of the PE gas pipe port and the pressure is stable.

[0021] The top of the slide 4 is fixedly mounted with an assembly plate 14 by bolts, and the grinding block 5 is fixedly clamped between the assembly plate 14 and the slide 4. Specifically, the assembly plate 14 has a positioning groove on the side facing the grinding block 5, the grinding block 5 is embedded in the positioning groove, and the grinding block 5 is firmly fixed by fastening screws through the assembly plate 14 and the grinding block 5, which also facilitates the disassembly and replacement of the grinding block 5. The grinding block 5 is wedge-shaped and is an elastic abrasive grinding head made of nylon fiber and polyurethane as the matrix, mixed with alumina or silicon carbide abrasive, and cured to form a flexible grinding head.

[0022] The other end of the slide bar 2 is integrally formed or fixed with an operating handle 9 by bolts. The outer circumference of the operating handle 9 is covered with an anti-slip rubber sleeve, and the rubber sleeve is evenly distributed with anti-slip ridges, which can improve the operator's grip comfort and anti-slip performance.

[0023] As an improvement to this utility model, the guide roller 12 of the PE gas pipe port chamfering device can be equipped with a position adjustment structure. The specific improvement is as follows: the guide roller 12 is connected to the slide rod 2 through a connecting seat. A strip groove is opened on the slide rod 2 along its length direction. The connecting seat is slidably embedded in the strip groove. The locking rod 3 passes through the strip groove and is threadedly connected to the connecting seat. By screwing the locking rod 3, the relative fixation or loosening of the connecting seat and the slide rod 2 can be achieved, thereby driving the guide roller 12 to adjust its relative position along the length direction of the slide rod 2, so as to adapt to the inner wall guidance requirements of more PE gas pipes with different diameters and expand the applicability of the device.

[0024] The working principle of this PE gas pipe port chamfering device is as follows: First, the operator aligns the end of the PE gas pipe 15 to be processed with the large opening of the "V" shape formed by the two positioning wing plates 6, and slowly pushes the pipe end in until the end face of the pipe end contacts the chamfering blade 10, reaching the preset processing position. During this process, the PTFE sliding plate 7 on the inner side of the positioning wing plate 6 contacts the outer circle of the PE gas pipe, reducing frictional resistance through its self-lubricating properties and preventing scratches on the outer surface of the pipe. At the same time, the "V" shape structure can automatically center, ensuring that the axis of the PE gas pipe is consistent with the processing reference line of the device, completing the initial positioning of the pipe.

[0025] Then, according to the pipe diameter and chamfering requirements of the PE gas pipe to be processed, adjust the position of the slide rod 2 in the slide groove of the main frame 1: rotate the locking rod 3 to loosen the threaded connection between the locking rod 3 and the main frame 1, at which point the slide rod 2 can slide freely in the slide groove; push the slide rod 2 to move along the length of the main frame 1, driving the locking rod 3, the slide 4 and the grinding stone to move synchronously, so that the guide roller 12 contacts the inner wall of the PE gas pipe, and then tighten the locking rod 3 to lock the slide rod 2 and the main frame 1. The slide 4 can slide on the "U" shaped structure of the slide rod 2, and with the elastic tension of the tension spring 13, the grinding stone initially fits the pipe end, completing the rough adjustment of the processing position.

[0026] After the above-mentioned processing position adjustment is completed, turn the operating handle 9 clockwise to drive the locking rod 3 to rotate. Utilize the threaded connection between the locking rod 3 and the main frame 1 to press the end of the locking rod 3 against the surface of the slide rod 2, thereby locking the relative position of the slide rod 2 and the main frame 1 and preventing the slide rod 2 from shifting during processing. At this time, the tension spring 13 is in a slightly stretched state, and its elastic tension pulls the slide 4 towards the groove wall of the "U"-shaped structure of the slide rod 2, so that the grinding stone adheres to the surface to be ground on the PE gas pipe port with appropriate pressure, ensuring stable grinding pressure and providing a reliable pressure foundation for subsequent grinding operations.

[0027] The operator holds the operating handle 9 and slowly rotates the slide bar 2. The slide bar 2 drives the "U"-shaped structure of its extension section to rotate synchronously. In turn, the slide bar 2 drives the chamfering blade 10 to make a circular motion around the axis of the PE gas pipe. At the same time, the slide 4 drives the polishing stone to make a circular motion around the axis of the PE gas pipe.

[0028] During this process, the guide roller 12 of the slide bar 2 is in close contact with the inner wall of the PE gas pipe opening and rolls accordingly, providing precise guidance for the rotation of the slide bar 2 and ensuring that the movement trajectory of the grinding stone is a concentric circle, thus ensuring that the chamfering angle is uniform. At the same time, under the continuous elastic tension of the tension spring 13, the grinding stone always maintains a stable contact with the pipe end. As the slide bar 2 continues to rotate, the grinding stone thoroughly grinds the edge burrs and chamfered end face of the pipe end, removing residual burrs and forming a smooth chamfered surface.

[0029] After the grinding operation is completed, the operator stops rotating the operating handle 9, screws the locking rod 3 to unlock the slide rod 2, and pulls the slide rod 2 away from the pipe, causing the grinding stone to detach from the PE gas pipe port; then the PE gas pipe is pulled out from the figure-eight structure of the positioning wing plate 6, completing a single grinding operation; if the next pipe needs to be processed, the above steps can be repeated.

[0030] This device achieves precise alignment of the pipe through the "eight"-shaped structure of the positioning wing plate 6, and allows for flexible adjustment of the processing position by using the cooperation of the slide rod 2 and the locking rod 3. The elastic pressure of the tension spring 13 ensures the stability of the grinding fit, and the guiding action of the guide roller 12 ensures the uniformity of the grinding trajectory. Finally, it achieves efficient and precise chamfering grinding of the PE gas pipe end. The overall structure is simple and easy to operate, and it is suitable for processing PE gas pipes of different diameters.

Claims

1. A chamfering device for PE gas pipe ports, comprising a main frame (1), a slide bar (2), a locking bar (3), a slide carriage (4), and a grinding block (5), characterized in that: The main frame (1) is an elongated rectangular body, one end of the main frame (1) is symmetrically and fixedly provided with positioning wing plates (6), the cross-sections of the two positioning wing plates (6) are arranged in a splayed shape to adapt to the positioning of the end of a PE gas pipe, a sliding groove is formed on the main frame (1) along the length direction, a sliding rod (2) is slidably embedded in the sliding groove, an adjusting groove (8) is formed on the sliding rod (2) along the length direction, a locking rod (3) penetrates through the adjusting groove (8) and is in threaded connection with the main frame (1), and the relative position between the sliding rod (2) and the main frame (1) can be locked by screwing the locking rod (3); one end of the sliding rod (2) is bent and extends between the two positioning wing plates (6), a chamfering blade (10) is arranged on the bent section of the sliding rod (2), and the end of the extending section of the sliding rod (2) is of a U-shaped structure; a sliding carriage (4) is slidably sleeved on the U-shaped structure of the sliding rod (2), a guide roller (12) is movably mounted on the end of the extending section, and a tension spring (13) is connected between the inner side of the sliding carriage (4) and the groove wall of the U-shaped structure of the sliding rod (2); an assembly plate (14) is fixedly mounted on the top of the sliding carriage (4), and a grinding block (5) is fixedly clamped between the assembly plate (14) and the sliding carriage (4); an operating handle (9) is fixedly mounted on the other end of the sliding rod (2).

2. The PE gas pipe port chamfering device according to claim 1, characterized in that: The cross-section of the sliding carriage (4) is in a gate shape, and an end of the sliding carriage (4) is provided with a cavity for cooperating with the U-shaped structure of the locking rod (3).

3. The PE gas pipe port chamfering device according to claim 1, characterized in that: A sliding sheet (7) is arranged on the end face of the positioning wing plate (6).

4. The PE gas pipe port chamfering device according to claim 1, characterized in that: A discharge port (11) is arranged on the locking rod (3) corresponding to the chamfering blade (10).

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