Ultra-high molecular weight polyethylene wear-resistant pipe flanging tool

Abstract

The utility model discloses an ultra-high molecular weight polyethylene wear-resistant pipe flanging tool, and belongs to the technical field of pipeline shaping. The tool comprises a fixing frame, a movable frame, a pipe hoop, a hydraulic rod and a shaping disc, the fixing frame comprises a rectangular frame body, the movable frame is arranged in the frame body of the fixing frame, the hydraulic rod penetrates into a rear side plate of the frame body of the fixing frame, the front end of the hydraulic rod is fixed in the rear side plate, and the shaping disc is fixed to the end of a telescopic rod in the center of the hydraulic rod. An annular protrusion is arranged on the outer ring of the shaping disc, and a columnar protrusion matched with the inner diameter of a to-be-machined pipe is arranged in the center of the shaping disc. A semi-annular limiting disc is welded to the front end of the pipe hoop, and the inner diameter of the pipe hoop and the inner diameter of the limiting disc are matched with the outer diameter of a pipe to be machined. And compared with a traditional shaping mode, the sizes of all the shaped pipes can be kept consistent, manpower can be saved, and the situation of material waste is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipeline shaping, and particularly relates to a flanging tooling for a wear-resistant pipe made of ultra-high molecular weight polyethylene. Background Art

[0002] Ultra-high molecular weight polyethylene (UHMW-PE) pipes are thermoplastic engineering plastics with a linear structure and excellent comprehensive properties. They have superior properties such as impact resistance, low-temperature resistance, wear resistance, chemical corrosion resistance, self-lubrication, and impact energy absorption, and are widely used in water supply, drainage, agricultural irrigation, water conservancy projects, and various industrial installations. The end of this wear-resistant pipe needs to be set as a flange-like structure for easy connection and installation. During on-site construction, it is necessary to perform on-site flanging and shaping on the end of the wear-resistant pipe according to requirements. However, in the prior art, either the prefabricated ultra-high molecular weight polyethylene wear-resistant pipe is hot-melt bonded to the ultra-high molecular weight polyethylene flange end, or hot-melt flanging and shaping are performed according to the experience of workers. In the former case, the connection of the manufactured pipe is prone to breakage or bevel after long-term use, while in the latter case, the process is difficult to meet the unity requirements, and the sizes and shapes of different flange ends often vary, which not only wastes manpower and materials but also places extremely high requirements on the skill level of operators. Content of the Utility Model

[0003] In order to solve the problem of non-uniform flanging system at the end of the ultra-high molecular weight polyethylene wear-resistant pipe, the utility model proposes a flanging tooling for the ultra-high molecular weight polyethylene wear-resistant pipe.

[0004] The flanging tooling for the ultra-high molecular weight polyethylene wear-resistant pipe is characterized in that: it includes a fixed frame, a moving frame, a pipe clamp, a hydraulic rod, and a shaping disc. The fixed frame includes a rectangular frame body, which is welded to a rectangular bottom plate, and the bottom plate is welded to the frame body. A break is provided on the front side of the frame body, and the width of the break is greater than the outer diameter of the pipe clamp. Semi-circular ring plates are welded downward respectively on the lower parts of the front and rear side plates of the frame body, and the inner diameter of the semi-circular ring plates is consistent with the width of the break. A slit that runs through from front to back and has a width greater than the outer diameter of the pipe clamp is provided in the middle of the bottom plate; the moving frame is arranged inside the frame body of the fixed frame. The moving frame is rectangular, and its width is greater than the width of the slit on the bottom plate of the fixed frame and the width of the break on the frame body of the fixed frame. A notch with a width not less than the outer diameter of the pipe clamp is provided on the front side plate of the moving frame; the hydraulic rod penetrates into the rear side plate of the frame body of the fixed frame, and the front end of the hydraulic rod is fixed inside the rear side plate. The telescopic rod at the center of the hydraulic rod passes through the rear side plate of the frame body of the fixed frame and then penetrates through the rear side plate of the moving frame, and finally a shaping disc is fixed at its front end. A ring-shaped protrusion is provided on the outer circle of the shaping disc, and a columnar protrusion matching the inner diameter of the pipe to be processed is provided at the center; a semi-circular limiting disc is welded to the front end of the pipe clamp. The inner diameters of the pipe clamp and the limiting disc match the outer diameter of the pipe to be processed. After two symmetrical pipe clamps hold the pipe, they are fixed by bolts, and the limiting discs at the front end form a complete circular limiting disc, and the outer diameter of the limiting disc is greater than the diameter of the shaping disc.

[0005] Furthermore, the shaping disk is connected to the telescopic rod of the hydraulic rod by bolts, and shaping disks of different diameters can be replaced according to different shaping size requirements.

[0006] The beneficial effects of the utility model are as follows: the pipe to be processed is clamped by the pipe clamp to expose the front end of the pipe, and the worker holds the pipe clamp to perform hot-melting on the front end of the pipe, which can prevent the flame from burning the worker's hands; after the hot-melting is completed, the pipe is placed in the gap between the fixed frame and the movable frame, and the hydraulic rod is started to make the molding disk squeeze the front end of the hot-melted pipe to shape it into a flange end. During the extrusion process, the movable frame will move with the pressure and press against the front end side plate of the fixed frame. At this time, the fixed frame and the hydraulic rod provide opposite forces so that the front end of the hot-melted pipe can be deformed under pressure to be shaped under the condition that the forces are applied on both sides. Compared with the traditional shaping method, it can not only make the dimensions of all pipes consistent after shaping, but also save manpower and reduce material waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 It is a top view of the flanging tooling for ultra-high molecular weight polyethylene wear-resistant pipe.

[0008] Figure 2 This is a front view of the flanging tooling for ultra-high molecular weight polyethylene wear-resistant pipe.

[0009] Figure 3 Schematic diagram of the pipe clamp structure.

[0010] Among them: 1-fixed frame, 11-frame, 12-bottom plate, 13-frame, 2-movable frame, 3-hydraulic rod, 31-telescopic rod, 4-pipe clamp, 41-limiting plate, 5-shaping plate, 6-pipe. DETAILED DESCRIPTION

[0011] Embodiment 1: A flanging tooling for ultra-high molecular weight polyethylene wear-resistant pipes, comprising a fixed frame 1, a moving frame 2, a pipe clamp 4, a hydraulic rod 3 and a shaping disc 5. The fixed frame 1 includes a rectangular frame body 11, and the frame body 11 is welded to a rectangular bottom plate 12, and the bottom plate 12 is welded to a frame body 13. A notch with a width greater than the outer diameter of the pipe clamp 4 is provided on the front side of the frame body 11. Semi-circular ring plates extending downward are respectively welded below the front and rear side plates of the frame body 11, and the inner diameter of the semi-circular ring plates is the same as the width of the notch. A crack extending through the front and rear and with a width greater than the outer diameter of the pipe clamp 4 is provided in the middle of the bottom plate 12. The moving frame 2 is arranged inside the frame body 11 of the fixed frame 1. The moving frame 2 is rectangular, and its width is greater than the width of the crack on the bottom plate 12 of the fixed frame and the width of the notch of the frame body 11 of the fixed frame. Therefore, the moving frame 2 can be placed on the bottom plate 12 and its front and rear movement ranges are restricted by the frame body 11; a notch with a width not less than the outer diameter of the pipe clamp 4 is provided on the front side plate of the moving frame 2. The hydraulic rod 3 penetrates into the rear side plate of the frame body 11 of the fixed frame, and the front end of the hydraulic rod 3 is fixed inside the rear side plate. The telescopic rod 31 at the center of the hydraulic rod 3 passes through the rear side plate of the frame body 11 of the fixed frame and then penetrates through the rear side plate of the moving frame 2, and finally a shaping disc 5 is fixed at its front end head. The shaping disc 5 is connected to the telescopic rod 31 by bolts and can be replaced with shaping discs 5 of different diameters according to different shaping size requirements. A ring-shaped protrusion is provided on the outer circle of the shaping disc 5, and a columnar protrusion matching the inner diameter of the pipe to be processed is provided at the center. A semi-circular limiting disc 41 is welded to the front end of the pipe clamp 4. The inner diameters of the pipe clamp 4 and the limiting disc 41 match the outer diameter of the pipe 6 to be processed. After two symmetrical pipe clamps 4 surround the pipe 6, they are fixed by bolts, and the front limiting discs 41 form a complete circular limiting disc 41, and the outer diameter of the limiting disc 41 is greater than the diameter of the shaping disc 5.

[0012] The pipe 6 to be processed is clamped by the pipe clamp 4 and the front end of the pipe 6 is exposed. Workers hold the pipe clamp 4 to perform hot melting on the front-end pipe 6, which can prevent the flame from burning the workers' hands; after the hot melting is completed, the pipe 6 is placed in the notches of the fixed frame 1 and the moving frame 2, and the hydraulic rod 3 is started to make the shaping disc 5 extrude the front end of the hot-melted pipe 6 to shape it into a flange end. During the extrusion process, the moving frame 2 will move with the pressure and abut against the front side plate of the frame body 11 of the fixed frame. At this time, the fixed frame 1 and the hydraulic rod 3 provide opposite forces so that the front-end pipe 6 after hot melting can undergo compressive deformation under the action of forces on both sides for shaping. Compared with the traditional shaping method, it can not only make the sizes of all shaped pipes consistent, but also save manpower and reduce material waste.

Claims

1. Ultra-high molecular weight polyethylene wear-resistant pipe flanging tooling, characterized in that: It includes a fixed frame, a movable frame, a pipe hoop, a hydraulic rod and a shaping disc. The fixed frame includes a rectangular frame body, which is welded to a rectangular bottom plate, and the bottom plate is welded to the frame body. A notch with a width greater than the outer diameter of the pipe hoop is provided on the front side of the frame body. Semi-circular plate materials extending downward are respectively welded below the front and rear side plates of the frame body, and the inner diameter of the semi-circular plate materials is consistent with the width of the notch. A crack that runs through from front to back and has a width greater than the outer diameter of the pipe hoop is provided in the middle of the bottom plate; the movable frame is arranged inside the frame body of the fixed frame. The movable frame is rectangular, and its width is greater than the width of the crack on the bottom plate of the fixed frame and the width of the notch on the frame body of the fixed frame. A notch with a width not less than the outer diameter of the pipe hoop is provided on the front side plate of the movable frame; the hydraulic rod penetrates into the rear side plate of the frame body of the fixed frame, and the front end of the hydraulic rod is fixed inside the rear side plate. The telescopic rod at the center of the hydraulic rod passes through the rear side plate of the frame body of the fixed frame and then penetrates through the rear side plate of the movable frame, and finally a shaping disc is fixed at its front end. A ring-shaped protrusion is provided on the outer circle of the shaping disc, and a columnar protrusion matching the inner diameter of the pipe to be processed is provided at the center; a semi-circular limiting disc is welded to the front end of the pipe hoop. The inner diameters of the pipe hoop and the limiting disc match the outer diameter of the pipe to be processed. After two symmetrical pipe hoops embrace the pipe, they are fixed by bolts, and the limiting discs at the front ends form a complete circular limiting disc, and the outer diameter of the limiting disc is greater than the diameter of the shaping disc.

2. The flanging tooling for ultra-high molecular weight polyethylene wear-resistant pipes according to claim 1, characterized in that The shaping disc is connected to the telescopic rod of the hydraulic rod by bolts and can be replaced with shaping discs of different diameters according to different shaping size requirements.

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