Flanging equipment for stainless steel lined composite steel pipe

Abstract

The utility model provides flanging equipment for a composite steel pipe lined with stainless steel. Relates to the technical field of steel pipe flanging. The lining stainless steel composite steel pipe flanging equipment comprises a flanging workbench, a bearing plate is fixedly mounted at the top of the flanging workbench, an axis rod is rotatably mounted on the bearing plate, and a mounting disc is fixedly mounted at one end of the axis rod; four fixed arc-shaped clamping pieces distributed in an annular array and first air cylinders are fixedly mounted on the side, away from the bearing plate, of the mounting disc, the inner diameters of the four fixed arc-shaped clamping pieces are different, and movable arc-shaped clamping pieces are fixedly mounted on output shafts of the four first air cylinders; and the four movable arc-shaped clamping pieces are matched with the four fixed arc-shaped clamping pieces correspondingly, and a transverse moving table is installed at the top of the flanging workbench in a sliding mode. The steel pipe flanging device has the advantages that steel pipes with different diameters can be flanged, and the application range is wide.

Description

Technical Field

[0001] The utility model relates to the technical field of steel pipe flanging, in particular to a flanging device for an inner-lined stainless steel composite steel pipe. Background Art

[0002] The inner-lined stainless steel composite steel pipe is a new type of pipeline material, which is composed of the inner layer of stainless steel and the outer layer of carbon steel pipe. This kind of pipeline combines the advantages of stainless steel and high-strength steel pipe, has good corrosion resistance, high-pressure resistance and wear resistance, and is widely used in the fields of petroleum, chemical industry, construction, etc. In the production process of the stainless steel composite steel pipe, in order to improve the beauty of the pipeline and facilitate the connection of the pipeline with external joints, generally, flanging treatment is carried out on one end of the steel pipe. When flanging, first use an arc-shaped mold to clamp the pipeline, and then use a die head to turn the hole edge at one end of the steel pipe into a vertical edge.

[0003] However, it is found in the use of common flanging devices that sometimes it is necessary to flange inner-lined stainless steel composite steel pipes with different diameters according to customer requirements, while most flanging devices can only flange steel pipes with one diameter, and the applicable range is relatively narrow. Although some devices can replace the mold individually, the bolt connection installation method makes the replacement process more cumbersome and the efficiency is low.

[0004] Therefore, it is necessary to provide a new flanging device for inner-lined stainless steel composite steel pipes to solve the above technical problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a flanging device for inner-lined stainless steel composite steel pipes that can carry out flanging work on steel pipes with different diameters and has a wide applicable range.

[0006] To solve the above technical problems, the flanging device for the stainless steel-lined composite steel pipe provided by the utility model includes: a flanging workbench, on the top of which a load-bearing plate is fixedly installed. An axial center rod is rotatably installed on the load-bearing plate. One end of the axial center rod is fixedly installed with an installation disc. On the side of the installation disc away from the load-bearing plate, four fixed arc-shaped clamping pieces and a first cylinder are fixedly installed in an annular array. The inner diameters of the four fixed arc-shaped clamping pieces are different. On the output shafts of the four first cylinders, movable arc-shaped clamping pieces are fixedly installed respectively. The four movable arc-shaped clamping pieces are respectively adapted to the four fixed arc-shaped clamping pieces. A transverse moving table is slidably installed on the top of the flanging workbench. A second cylinder is fixedly installed on the top of the transverse moving table. A connecting piece is fixedly installed on the output shaft of the second cylinder. A transverse connecting plate is fixedly installed on the top of the connecting piece. A vertical connecting plate is fixedly installed on the side of the transverse connecting plate close to the installation disc. An installation piece is installed on the side of the vertical connecting plate close to the installation disc by bolts. An expanding head and a pressing head are fixedly installed on the installation piece. Two third cylinders are fixedly installed on the top of the flanging workbench. On the output shafts of the two third cylinders, the same pushing plate is fixedly installed. The bottom of the pushing plate is fixedly connected with the transverse moving table.

[0007] Preferably, four insertion holes are formed in the installation disc in an annular array. The four insertion holes are respectively adapted to the four fixed arc-shaped clamping pieces. An avoidance groove is formed in the load-bearing plate. The avoidance groove corresponds to the lowermost insertion hole.

[0008] Preferably, a first sliding strip is fixedly installed on the top of the flanging workbench. A first sliding block is slidably installed on the first sliding strip. The top of the first sliding block is fixedly connected with the transverse moving table.

[0009] Preferably, a second sliding strip is fixedly installed on the top of the transverse moving table. A second sliding block is slidably installed on the second sliding strip. The top of the second sliding block is fixedly connected with the vertical connecting plate. A third sliding strip is fixedly installed on the side of the pushing plate close to the vertical connecting plate. A third sliding block is slidably installed on the third sliding strip. One side of the third sliding block is fixedly connected with the transverse connecting plate.

[0010] Preferably, a rotating seat is fixedly installed at the end of the axial center rod away from the installation disc. Four retaining holes are formed in the outer circumferential wall of the rotating seat in an annular array. A support platform is fixedly installed on the side of the load-bearing plate away from the installation disc. A pull rod is slidably installed on the support platform. A retaining head is fixedly installed at the top of the pull rod. The top of the retaining head extends into the corresponding retaining hole.

[0011] Preferably, a pressing piece is fixedly installed at the bottom end of the pull rod, a spring is sleeved on the pull rod, the top end of the spring is fixedly connected to the support platform, and the bottom end thereof is fixedly connected to the pressing piece.

[0012] Preferably, a T-shaped annular groove is formed on one side of the bearing plate close to the mounting disc, and two T-shaped connecting rods are slidably installed in the T-shaped annular groove. The same-direction ends of the two T-shaped connecting rods are fixedly connected to the mounting disc.

[0013] Compared with the related art, the flanging device for the stainless steel composite steel pipe with internal lining provided by the present utility model has the following beneficial effects:

[0014] The present utility model provides a flanging device for the stainless steel composite steel pipe with internal lining. By installing four fixed arc-shaped clips and movable arc-shaped clips with different inner diameters and commonly used on the mounting disc, flanging treatment can be carried out for different composite steel pipes, and the applicable range is greatly improved. Moreover, when calling the corresponding fixed arc-shaped clip, only the rotating seat needs to be rotated, and the operation is simple and practical. In addition, through the cooperation of the flaring head and the flattening head, a double-station mode can be formed, and the flanging work of the steel pipe can be quickly carried out, greatly improving the flanging efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is one of the structural schematic diagrams of the flanging device for the stainless steel composite steel pipe with internal lining provided by the present utility model;

[0016] Figure 2 is the second structural schematic diagram of the flanging device for the stainless steel composite steel pipe with internal lining provided by the present utility model;

[0017] Figure 3 is the connection structural schematic diagram of the bearing plate and the central axis rod in the present utility model;

[0018] Figure 4 is the assembly schematic diagram of the fixed arc-shaped clip, the first cylinder and the movable arc-shaped clip in the present utility model;

[0019] Figure 5 is the connection structural schematic diagram of the transverse moving platform and the push plate in the present utility model;

[0020] Figure 6 is the bottom view structural schematic diagram of the transverse moving platform in the present utility model;

[0021] Figure 7 is the connection structural schematic diagram of the support platform and the pull rod in the present utility model.

[0022] Reference numerals in the figure: 1, flanging workbench; 2, load-bearing plate; 3, shaft rod; 4, mounting disc; 5, fixed arc-shaped clip; 6, first cylinder; 7, movable arc-shaped clip; 8, insertion hole; 9, transverse moving table; 10, second cylinder; 11, connecting piece; 12, horizontal connecting plate; 13, vertical connecting plate; 14, mounting piece; 15, flaring head; 16, flattening head; 17, push plate; 18, third cylinder; 19, rotating seat; 20, retaining hole; 21, support table; 22, pull rod; 23, retaining head; 24, pressing piece. Specific implementation manner

[0023] The present utility model will be further described below in conjunction with the accompanying drawings and the implementation manner.

[0024] Please refer to Figures 1-7 . The flanging equipment for the stainless steel composite steel pipe with an inner lining includes: a flanging workbench 1, and a load-bearing plate 2 is fixed on the top of the flanging workbench 1. A shaft rod 3 is rotatably installed on the load-bearing plate 2. One end of the shaft rod 3 is fixed with a mounting disc 4. Four fixed arc-shaped clips 5 and a first cylinder 6 distributed in an annular array are fixed on the side of the mounting disc 4 away from the load-bearing plate 2. The inner diameters of the four fixed arc-shaped clips 5 are different, and movable arc-shaped clips 7 are fixed on the output shafts of the four first cylinders 6. The four movable arc-shaped clips 7 are respectively adapted to the four fixed arc-shaped clips 5. By the telescopic movement of the output shaft of the first cylinder 6, the steel pipe can be conveniently clamped and fixed and taken out. And a first slide bar is fixed on the top of the flanging workbench 1. A first slider is slidably installed on the first slide bar. A transverse moving table 9 is fixed on the top of the first slider. A second cylinder 10 is fixed on the top of the transverse moving table 9. A connecting piece 11 is fixed on the output shaft of the second cylinder 10. A horizontal connecting plate 12 is fixed on the top of the connecting piece 11. A vertical connecting plate 13 is fixed on the side of the horizontal connecting plate 12 close to the mounting disc 4. A mounting piece 14 is installed on the side of the vertical connecting plate 13 close to the mounting disc 4 by bolts. A flaring head 15 and a flattening head 16 are fixed on the mounting piece 14. In this way, it is convenient to replace the severely worn flaring head 15 and flattening head 16 later. And by the telescopic movement of the output shaft of the second cylinder 10, the working positions of the flaring head 15 and the flattening head 16 can be replaced, so as to form a double-station form and quickly flanging the steel pipe. And two third cylinders 18 are fixed on the top of the flanging workbench 1. The output shafts of the two third cylinders 18 are fixed with the same push plate 17. The bottom of the push plate 17 is fixedly connected with the transverse moving table 9. By the extension of the output shaft of the third cylinder 18, the flaring head 15 or the flattening head 16 can be driven to move towards the composite steel pipe, thereby forming a flanging process.

[0025] In the above method, in order not to interfere with the installation and removal of the steel pipe, four insertion holes 8 distributed in an annular array are provided in the installation disc 4. The four insertion holes 8 are respectively adapted to the four fixed arc-shaped clamping pieces 5. An avoidance groove is provided on the bearing plate 2, and the avoidance groove corresponds to the lowermost insertion hole 8. The steel pipe can be placed on the fixed arc-shaped clamping piece 5 through the avoidance groove and the insertion hole 8.

[0026] In this method, in order to improve the stability of the longitudinal movement of the horizontal connecting plate 12 and the vertical connecting plate 13, a second sliding strip is fixed on the top of the horizontal moving table 9, and a second sliding block is slidably installed thereon. The top of the second sliding block is fixedly connected to the vertical connecting plate 13. A third sliding strip is fixed on one side of the push plate 17 close to the vertical connecting plate 13, and a third sliding block is slidably installed thereon. One side of the third sliding block is fixedly connected to the horizontal connecting plate 12.

[0027] In this method, when different fixed arc-shaped clamping pieces 5 are called, in order to limit and fix the rotating seat 19 after the call is completed, a rotating seat 19 is fixed at one end of the shaft center rod 3 away from the installation disc 4. Four positioning holes 20 distributed in an annular array are provided on its outer circumferential wall. A support platform 21 is fixed on the side of the bearing plate 2 away from the installation disc 4. A pull rod 22 is slidably installed on the support platform 21. A positioning head 23 is fixed at the top of the pull rod 22. The top of the positioning head 23 extends into the corresponding positioning hole 20. And a pressing piece 24 is fixed at the bottom end of the pull rod 22. A spring is sleeved on the pull rod 22. The top end of the spring is fixedly connected to the support platform 21, and the bottom end thereof is fixedly connected to the pressing piece 24. In this way, it is convenient for people to pull the pull rod 22. At the same time, the elastic force of the spring can tightly clamp the positioning head 23 in the positioning hole 20 to improve stability.

[0028] In this method, in order to improve the stability of the installation disc 4 during rotation, a T-shaped annular track is provided on the side of the bearing plate 2 close to the installation disc 4, and two T-shaped connecting rods are slidably installed therein. The same-direction ends of the two T-shaped connecting rods are fixedly connected to the installation disc 4.

[0029] In the present utility model:

[0030] The four set fixed arc-shaped clamping pieces 5 are the four most commonly used specifications, and in the initial state, the output shafts of the four first cylinders 6 are all in the retracted state;

[0031] When the flanging of the stainless steel lined composite steel pipe is required, first call the corresponding fixed arc-shaped clamping piece 5 and the movable arc-shaped clamping piece 7 according to the diameter of the steel pipe;

[0032] When in use, first pull down the pressing piece 24 to take the retaining head 23 out of the corresponding retaining hole 20. At this time, the spring is in a compressed state. Then rotate the rotating seat 19. The rotating seat 19 drives the mounting disc 4 to rotate. After rotating the applicable fixed arc-shaped clamping piece 5 to the lowermost position, release the pressing piece 24 and bring the retaining head 23 into the corresponding retaining hole 20, thus completing the call of the clamping die.

[0033] Then, pass the steel pipe to be flanged through the avoidance groove and the insertion hole 8 and place it on the lowermost fixed arc-shaped clamping piece 5, and make a small section of the end of the steel pipe close to the flaring head 15 extend out. Immediately start the output shaft of the corresponding first cylinder 6 to extend, and use the corresponding movable arc-shaped clamping piece 7 to clamp the steel pipe.

[0034] At this time, the flaring head 15 and the steel pipe are in a horizontally corresponding state. Then start the output shaft of the third cylinder 18 to extend. The flaring head 15 moves towards the steel pipe. When the flaring head 15 contacts the outer edge of the steel pipe, it will form a hard extrusion on it, causing it to deform and finally be in a flared state. Subsequently, start the output shaft of the third cylinder 18 to retract, bring back the flaring head 15. Immediately start the output shaft of the second cylinder 10 to extend, so that the flat pressing head 16 moves to the original position of the flaring head 15. At this time, the flat pressing head 16 and the steel pipe are horizontally corresponding. Then start the output shaft of the third cylinder 18 to extend again. Finally, use the flat pressing head 16 to flatten the deformed outer edge of the steel pipe, thus completing one flanging operation.

[0035] After that, the flanged steel pipe can be removed, and the next steel pipe can be put in to continue the flanging work until the work is completed.

[0036] Compared with the related technologies, the flanging equipment for the stainless steel lined composite steel pipe provided by the present utility model has the following beneficial effects:

[0037] The present utility model provides a flanging equipment for the stainless steel lined composite steel pipe. By installing four fixed arc-shaped clamping pieces 5 and movable arc-shaped clamping pieces 7 with different inner diameters and commonly used on the mounting disc 4, flanging treatment can be carried out for different composite steel pipes, and the applicable range is greatly improved. And when calling the corresponding fixed arc-shaped clamping piece 5, only need to rotate the rotating seat 19, the operation is simple and practical. Moreover, through the cooperation of the flaring head 15 and the flat pressing head 16, a double-station mode can be formed, and the flanging work of the steel pipe can be quickly carried out, greatly improving the flanging efficiency.

[0038] The above are only the embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. All equivalent structural or equivalent process transformations made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, are equally included in the patent protection scope of the present utility model.

Claims

1. A flanging device for a stainless steel lined composite steel pipe, comprising a flanging workbench, characterized in that: A load-bearing plate is fixedly installed on the top of the flanging workbench, an axial rod is rotatably installed on the load-bearing plate, a mounting disc is fixedly installed on one end of the axial rod, four fixed arc clips and a first cylinder distributed in a ring array are fixedly installed on the side of the mounting disc away from the load-bearing plate, the inner diameters of the four fixed arc clips are different, and movable arc clips are fixedly installed on the output shafts of the four first cylinders, and the four movable arc clips are respectively matched with the four fixed arc clips, and a horizontal moving platform is slidably installed on the top of the flanging workbench. A second cylinder is fixedly installed on the top of the moving platform, a connecting piece is fixedly installed on the output shaft of the second cylinder, a transverse plate is fixedly installed on the top of the connecting piece, a vertical plate is fixedly installed on the side of the transverse plate close to the mounting disc, a mounting piece is installed on the side of the vertical plate close to the mounting disc through bolts, an expanding head and a flattening head are fixedly installed on the mounting piece, two third cylinders are fixedly installed on the top of the flanging workbench, the same push plate is fixedly installed on the output shafts of the two third cylinders, and the bottom of the push plate is fixedly connected to the horizontal moving platform.

2. The flanging equipment for lined stainless steel composite steel pipe according to claim 1 is characterized in that: The mounting disc is provided with four through holes distributed in a circular array, the four through holes are respectively matched with the four fixed arc-shaped clips, and the load-bearing plate is provided with an avoidance groove corresponding to the lowest through hole.

3. The flanging equipment for lined stainless steel composite steel pipe according to claim 1, characterized in that: A first slide bar is fixedly installed on the top of the flanging workbench, a first slider is slidably installed on the first slide bar, and the top of the first slider is fixedly connected to the transverse moving platform.

4. The flanging equipment for lined stainless steel composite steel pipe according to claim 1, characterized in that: A second slide bar is fixedly installed on the top of the transverse moving platform, a second slider is slidably installed on the second slide bar, the top of the second slider is fixedly connected to the vertical connecting plate, a third slide bar is fixedly installed on one side of the push plate close to the vertical connecting plate, a third slider is slidably installed on the third slide bar, and one side of the third slider is fixedly connected to the transverse connecting plate.

5. The flanging equipment for lined stainless steel composite steel pipe according to claim 1, characterized in that: A rotating seat is fixedly installed on the end of the axial rod away from the mounting disc, and four retaining holes distributed in a circular array are opened on the outer ring wall of the rotating seat. A support is fixedly installed on the side of the load-bearing plate away from the mounting disc, and a pull rod is slidably installed on the support. A retaining head is fixedly installed on the top of the pull rod, and the top of the retaining head extends into the corresponding retaining hole.

6. The flanging equipment for lined stainless steel composite steel pipe according to claim 5, characterized in that: A pressing piece is fixedly installed at the bottom end of the pull rod, and a spring is sleeved on the pull rod. The top end of the spring is fixedly connected to the support platform, and the bottom end of the spring is fixedly connected to the pressing piece.

7. The flanging equipment for lined stainless steel composite steel pipe according to claim 1, characterized in that: A T-shaped ring is provided on one side of the load-bearing plate close to the mounting disc. Two T-shaped connecting rods are slidably mounted in the T-shaped ring. The same-direction ends of the two T-shaped connecting rods are fixedly connected to the mounting disc.

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