A steel pipe end processing device

Abstract

The utility model relates to the technical field of steel pipe mouth processing, and in particular to a steel pipe mouth processing device. Its technical solution includes: a fixed plate and a lifting assembly arranged on the fixed plate, a clamping assembly and a flaring processing assembly are arranged on the fixed plate, the clamping assembly includes four support columns fixedly installed on the top of the fixed plate, two fixed frames are arranged on the inner sides of the four support columns, the two fixed frames are arranged in upper and lower relative positions, the lower fixed frame is fixedly installed on the inner sides of the four support columns, and the upper fixed frame is movably installed on the inner sides of the four support columns, and movable grooves are provided on the inner sides of the two fixed frames. The utility model is provided with a spray tube, a flaring frame and a movable frame, and when the steel pipe mouth is flared, the steel pipe mouth and the flaring frame can be lubricated to avoid damage caused by friction between the steel pipe mouth and the flaring frame, and the clamping force can be gradually increased according to the thrust generated when the steel pipe is flared.

Description

Technical Field

[0001] The utility model relates to the technical field of steel pipe mouth processing, in particular to a steel pipe mouth processing device. Background Art

[0002] The steel pipe has a hollow cross-section and its length is much larger than its diameter or circumference. The steel pipe is usually used to transport gas or liquid. When installing the steel pipe, the steel pipe needs to be butt-jointed and the steel pipe mouth needs to be processed. When processing the steel pipe mouth, a steel pipe mouth processing device is required.

[0003] In the prior art, there are the following problems:

[0004] Usually when steel pipes are butt-jointed, a compression device is mostly used to compress the diameter of the steel pipe mouth so that the reduced steel pipe mouth can be inserted into the unreduced end of another set of steel pipes. However, the inner diameter of the steel pipe mouth is compressed simultaneously after compression, which can easily cause the compressed steel pipe mouth to affect the transportation operation. The existing solution is to expand the steel pipe mouth to increase the diameter of the steel pipe mouth and put it on the unexpanded end of the other steel pipe. However, when the existing steel pipe mouth processing device is expanding, it is not convenient to spray lubricating liquid on the inner wall of the steel pipe mouth, so that the steel pipe mouth is easy to cause scratches and damage to the expanding equipment. At the same time, when the steel pipe is expanded, the steel pipe will be subjected to a large thrust, and the clamping structure is not convenient for automatically increasing the clamping force according to the increase in thrust. Utility Model Content

[0005] The purpose of the utility model is to provide a steel pipe mouth processing device to solve the problems raised in the above background technology.

[0006] Material toggling mechanism, its both sides respectively have a cylinder pressure, and the cylinder pressure bar connects swing arm, and the swing arm end face has hook portion, and a bar passes position between the end of two swing arms and the hook portion.

[0007] By placing the steel pipe on the inner side of the movable frame and driving the upper fixed frame to move downward, the upper movable frame can be driven to move downward, and the steel pipe can be clamped and fixed in cooperation with the lower movable frame. By injecting the lubricating liquid into the corrugated tube, the lubricating liquid can be introduced into the spray tube. By pushing the expanding frame to move to the right, the spray tube is inserted into the inside of the steel pipe mouth. The lubricating liquid is sprayed on the inner wall of the steel pipe mouth by the spray tube. When the expanding frame is inserted into the steel pipe mouth for expanding processing, lubrication can be performed between the steel pipe mouth and the expanding frame to avoid damage caused by friction between the steel pipe mouth and the expanding frame. When the expanding frame is expanding the steel pipe, it will apply a rightward thrust to the steel pipe and simultaneously drive the movable frame to move to the right. The movable frame can be guided by the movable groove, so that the movable frame can gradually close when moving to the right, which can increase the clamping force on the steel pipe. The clamping force can be gradually increased according to the thrust generated when the steel pipe is expanded.

[0008] Preferably, the lifting assembly includes sliders fixedly mounted on the front and rear sides of the upper fixed frame, the front and rear sides of the upper fixed frame are both fixedly connected to two sliders, each of the sliders extends to the inner side of a support column and is slidably connected to the support column, and an electric telescopic rod is fixedly connected between the top of each slider and the support column. Through the telescopic effect of the electric telescopic rod, the slider can be driven to slide up and down, and the upper fixed frame can be driven to move up and down synchronously.

[0009] Preferably, a fixing sleeve is fixedly installed on the periphery of the fixing tube, and two fixing columns are fixedly connected between the bottom of the fixing sleeve and the fixing plate. The fixing tube can be fixed by the fixing sleeve, and the fixing sleeve can be supported and fixed by the fixing columns, and the fixing tube can be supported and fixed simultaneously.

[0010] Preferably, each movable frame is fixedly mounted with a slide bar on the front and rear sides, each movable slot is provided with a slide slot on the front and rear sides, and each slide bar extends into a slide slot and is slidably mounted with the slide slot. When the movable frame slides along the movable slot, the slide bar can be driven to move along the slide slot, thereby avoiding separation between the movable frame and the fixed frame.

[0011] Preferably, two tension springs are fixedly installed between one side of each movable frame and the movable groove, and clamping grooves are provided on the inner sides of the two movable frames. The tension of the tension springs can pull the movable frame to move to the left for reset, and the clamping grooves can conveniently enable the movable frame to clamp and fix the steel pipe.

[0012] Preferably, a hydraulic push rod is fixedly installed on the inner side of the expansion frame and the fixed cylinder, the hydraulic push rod is located above the corrugated pipe, a conveying groove is opened on the inner side of the expansion frame, one end of the corrugated pipe is connected to the spray pipe through the conveying groove, and one end of the fixed cylinder is fixedly connected to a docking port, which is connected to the other end of the corrugated pipe. The expansion frame can be driven to move to the right by the thrust of the hydraulic push rod, and the lubricating liquid can be injected into the corrugated pipe by convenient docking with an external pipeline through the docking port, and the lubricating liquid in the corrugated pipe can be introduced into the spray pipe through the conveying groove.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] By setting up the spray pipe, the expansion frame and the movable frame to cooperate with each other, the steel pipe is placed on the inner side of the clamping groove, and then the upper movable frame is driven to move downward, so that the two movable frames clamp and fix the steel pipe, and the expansion frame is driven to move to the right to insert the spray pipe into the inside of the steel pipe mouth. The lubricating liquid can be sprayed on the inner wall of the steel pipe mouth through the spray pipe. When the expansion frame is inserted into the steel pipe mouth for expansion, lubrication can be performed between the steel pipe mouth and the expansion frame to avoid damage caused by friction between the steel pipe mouth and the expansion frame. When the expansion frame is expanding the steel pipe, it will apply a rightward thrust to the steel pipe and simultaneously drive the movable frame to move to the right. The movable groove is used to guide the movable frame, so that the movable frame can gradually close when moving to the right, and the clamping force can be gradually increased according to the thrust generated when the steel pipe is expanded. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of the support column of the utility model;

[0017] Figure 3 It is a schematic diagram of the cutaway structure of the fixing frame of the utility model;

[0018] Figure 4 It is a schematic diagram of the cutaway structure of the expansion frame of the utility model.

[0019] In the figure: 1. fixed plate; 2. support column; 3. fixed frame; 4. fixed column; 5. fixed sleeve; 6. fixed cylinder; 7. expansion frame; 8. spray pipe; 9. slide block; 10. electric telescopic rod; 11. movable frame; 12. clamping groove; 13. movable groove; 14. slide groove; 15. slide rod; 16. tension spring; 17. docking port; 18. hydraulic push rod; 19. bellows; 20. conveying trough. DETAILED DESCRIPTION

[0020] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0021] The utility model provides Figure 1-4 A steel pipe mouth processing device shown in the figure comprises a fixed plate 1 and a lifting assembly arranged on the fixed plate 1, a clamping assembly and a flaring processing assembly are arranged on the fixed plate 1, the clamping assembly comprises four support columns 2 fixedly mounted on the top of the fixed plate 1, two fixed frames 3 are arranged on the inner sides of the four support columns 2, the two fixed frames 3 are arranged in upper and lower relative positions, the lower fixed frame 3 is fixedly mounted on the inner sides of the four support columns 2, the upper fixed frame 3 is movably mounted on the inner sides of the four support columns 2, movable grooves 13 are opened on the inner sides of the two fixed frames 3, a movable frame 11 is slidably mounted on the inner side of each movable groove 13, two movable grooves 13 are extended from the inner sides of the two movable frames 11, the flaring processing assembly comprises a fixed cylinder 6 fixedly mounted above the fixed plate 1, the fixed cylinder 6 is located on one side of the fixed frame 3, a flaring frame 7 is slidably mounted on the inner side of the fixed cylinder 6, one end of the flaring frame 7 extends from the fixed cylinder 6 and is fixedly mounted with a spray pipe 8, and a corrugated pipe 19 is fixedly connected to the inner sides of the fixed cylinder 6 and the flaring frame 7;

[0022] The lifting assembly includes sliders 9 fixedly mounted on the front and rear sides of the upper fixing frame 3, and two sliders 9 are fixedly connected to the front and rear sides of the upper fixing frame 3, each slider 9 extends to the inner side of a support column 2 and is slidably connected to the support column 2, and an electric telescopic rod 10 is fixedly connected between the top of each slider 9 and the support column 2;

[0023] A fixing sleeve 5 is fixedly installed on the periphery of the fixing cylinder 6, and two fixing columns 4 are fixedly connected between the bottom of the fixing sleeve 5 and the fixing plate 1;

[0024] Each movable frame 11 is fixedly provided with a slide bar 15 on the front and rear sides thereof, each movable slot 13 is provided with a slide slot 14 on the front and rear sides thereof, and each slide bar 15 extends into a slide slot 14 and is slidably installed with the slide slot 14;

[0025] Two tension springs 16 are fixedly installed between one side of each movable frame 11 and the movable groove 13, and the inner sides of the two movable frames 11 are provided with clamping grooves 12;

[0026] A hydraulic push rod 18 is fixedly installed on the inner side of the expansion frame 7 and the fixed cylinder 6. The hydraulic push rod 18 is located above the bellows 19. A conveying groove 20 is opened on the inner side of the expansion frame 7. One end of the bellows 19 is connected to the spray pipe 8 through the conveying groove 20. One end of the fixed cylinder 6 is fixedly connected to a docking port 17, and the docking port 17 is connected to the other end of the bellows 19.

[0027] The working principle of the steel pipe mouth processing device according to the embodiment is as follows: by placing the steel pipe inside the clamping groove 12, starting the electric telescopic rod 10 to push the slider 9 to move downward, and synchronously driving the upper fixed frame 3 to move downward, the upper movable frame 11 can be driven to move downward, and the steel pipe is clamped and fixed in cooperation with the lower movable frame 11, so that the steel pipe is located inside the clamping groove 12;

[0028] By docking the docking port 17 with the lubricating liquid delivery pipeline, the lubricating liquid can be injected into the bellows 19 through the docking port 17, and the lubricating liquid in the bellows 19 can be introduced into the spraying pipe 8 through the delivery groove 20. The hydraulic push rod 18 is started to drive the expansion frame 7 to move rightward, so that the spraying pipe 8 is inserted into the steel pipe mouth. The lubricating liquid is sprayed on the inner wall of the steel pipe mouth by the spraying pipe 8. When the expansion frame 7 is inserted into the steel pipe mouth for expansion processing, the steel pipe mouth and the expansion frame 7 can be lubricated to avoid damage caused by friction between the steel pipe mouth and the expansion frame 7.

[0029] When the expanding frame 7 is expanding the steel pipe, it will apply a rightward thrust to the steel pipe, and simultaneously drive the movable frame 11 to move to the right. The movable frame 11 is guided by the movable groove 13, so that the movable frame 11 can gradually close when moving to the right, which can increase the clamping force on the steel pipe. The clamping force can be gradually increased according to the thrust generated when the steel pipe is expanded.

[0030] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. A steel pipe mouth processing device, comprising a fixing plate (1) and a lifting assembly arranged on the fixing plate (1), characterized in that: The fixing plate (1) is provided with a clamping assembly and a flaring processing assembly; The clamping assembly comprises four support columns (2) fixedly mounted on the top of the fixed plate (1), two fixed frames (3) are arranged on the inner sides of the four support columns (2), the two fixed frames (3) are arranged in upper and lower relative positions, the lower fixed frame (3) is fixedly mounted on the inner sides of the four support columns (2), and the upper fixed frame (3) is movably mounted on the inner sides of the four support columns (2), movable grooves (13) are provided on the inner sides of the two fixed frames (3), a movable frame (11) is slidably mounted on the inner side of each movable groove (13), and two movable grooves (13) are extended from the inner sides of the two movable frames (11); The expansion processing assembly comprises a fixed cylinder (6) fixedly mounted above the fixed plate (1), the fixed cylinder (6) being located on one side of the fixed frame (3), an expansion frame (7) being slidably mounted on the inner side of the fixed cylinder (6), one end of the expansion frame (7) extending out of the fixed cylinder (6) and fixedly mounted with a spray pipe (8), and a corrugated pipe (19) being fixedly connected to the inner side of the fixed cylinder (6) and the expansion frame (7).

2. A steel pipe mouth processing device according to claim 1, characterized in that: The lifting assembly comprises sliders (9) fixedly mounted on the front and rear sides of an upper fixed frame (3); the front and rear sides of the upper fixed frame (3) are both fixedly connected to two sliders (9); each slider (9) extends to the inner side of a support column (2) and is slidably connected to the support column (2); and an electric telescopic rod (10) is fixedly connected between the top of each slider (9) and the support column (2).

3. A steel pipe mouth processing device according to claim 1, characterized in that: A fixing sleeve (5) is fixedly mounted on the periphery of the fixing cylinder (6), and two fixing columns (4) are fixedly connected between the bottom of the fixing sleeve (5) and the fixing plate (1).

4. A steel pipe mouth processing device according to claim 1, characterized in that: A slide bar (15) is fixedly mounted on the front and rear sides of each movable frame (11), a slide groove (14) is opened on the front and rear sides of each movable groove (13), and each slide bar (15) extends into a slide groove (14) and is slidably mounted with the slide groove (14).

5. A steel pipe mouth processing device according to claim 1, characterized in that: Two tension springs (16) are fixedly installed between one side of each movable frame (11) and the movable groove (13), and a clamping groove (12) is provided on the inner side of the two movable frames (11).

6. A steel pipe mouth processing device according to claim 1, characterized in that: A hydraulic push rod (18) is fixedly installed on the inner side of the expansion frame (7) and the fixed cylinder (6), and the hydraulic push rod (18) is located above the corrugated pipe (19). A conveying groove (20) is opened on the inner side of the expansion frame (7), and one end of the corrugated pipe (19) is connected to the spray pipe (8) through the conveying groove (20). One end of the fixed cylinder (6) is fixedly connected to a docking port (17), and the docking port (17) is connected to the other end of the corrugated pipe (19).

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