Metal compensator forming machine

By using a positioner and a compression spring in conjunction with a ball bearing structure, the problem of pipe misalignment during the processing of metal corrugated pipes is solved, achieving stable corrugation forming and ensuring the straightness and wall thickness consistency of the corrugated pipe.

CN224208876UActive Publication Date: 2026-05-08FUSHUN HUANYU SPECIAL SYLPHON BELLOWSS TUBE FACTORY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FUSHUN HUANYU SPECIAL SYLPHON BELLOWSS TUBE FACTORY
Filing Date
2026-04-13
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

Existing metal corrugated pipe processing equipment is prone to pipe misalignment during corrugation operations, resulting in poor straightness of the corrugated pipe and affecting processing quality.

Method used

A positioner and compression spring are used in conjunction with a ball bearing structure to achieve stable positioning of pipes of different diameters. A hydraulic cylinder drives a wave-forming mechanism to perform stable wave-forming.

Benefits of technology

Ensure the pipe moves vertically during corrugation to avoid deviation, guarantee uniform corrugation peaks and troughs and consistent wall thickness, thereby improving processing quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of corrugated pipe machining equipment, and discloses a metal compensator forming machine which comprises a workbench, a rotary table fixedly connected to the workbench, the rotary table is electrically connected with an external master controller through a connecting line, a large gear is fixedly connected to the rotary table, and two carrying tables are symmetrically and fixedly connected to the outer side of the rotary table. A top plate is fixedly connected to the portion, located on the rear side of the rotary table, of the workbench through a plurality of supporting columns, lead screws are rotationally connected between the top plate and the carrying table, small gears are fixedly connected to the outer sides of the lead screws and are in meshed connection with the large gears, a lifting plate is movably connected between the two lead screws, and a plurality of sliding ways are formed in the lifting plate. Through cooperation of multiple assemblies of the positioner, the positioner can be flexibly matched with pipelines with different diameters, stable positioning is achieved through the action of compression springs and balls in the positioner, shaking and deviation in the machining process are avoided, the pipelines can vertically move between positioning structures, the adaptive displacement requirement during wave supporting is met, and the sizes of wave crests and wave troughs of corrugated pipes are uniform, and the wall thickness is consistent.
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Description

Technical Field

[0001] This utility model relates to the technical field of corrugated pipe processing equipment, and in particular to a metal compensator forming machine. Background Technology

[0002] Metal compensators, also known as metal expansion joints, are flexible compensation components in industrial pipeline systems. They function by relying on the elastic deformation of metal bellows. They can absorb the thermal expansion and contraction displacement of pipelines and equipment caused by temperature changes, offset installation errors, absorb mechanical vibrations, reduce pipeline stress, and prevent pipelines and equipment from being damaged or having their seals fail due to deformation or vibration.

[0003] Currently, the processing of metal corrugated pipes is mainly divided into three types: hydraulic forming, mechanical internal expansion forming, and welding forming. For example, the existing Chinese utility model patent with publication number CN223097727U discloses a vertical corrugated pipe hydraulic forming device. This application's supporting mechanism can fix the corrugated pipe to be processed, and then the drive mechanism is activated to drive the forming mechanism to reciprocate, thereby forming the corrugated pipe crests. Subsequently, the supporting mechanism drives the corrugated pipe to rotate, thus cooperating with the forming mechanism to make the crest forming more uniform and accurate. However, this application has limitations in the pipe... When the corrugated pipe is being corrugated, the lower end of the pipe is clamped by a clamping block driven by a clamping cylinder. The clamping block is used to fix and hold the bottom of the corrugated pipe. However, when the corrugated pipe is being corrugated from the inside, the pipe will expand and deform outwards. During the corrugation operation, the pipe will shift upwards. In this application, the lower end of the pipe is clamped and fixed by a clamping mechanism during the corrugation operation from top to bottom. This affects the vertical offset adaptability of the pipe. Furthermore, if the pipe is not positioned, the stability of the pipe during lifting will be reduced, affecting the corrugation quality and making the overall straightness of the corrugated pipe worse. Utility Model Content

[0004] The purpose of this invention is to provide a metal compensator forming machine that is compatible with pipes of different diameters. When corrugating, it can ensure that the pipe is stable and does not deviate, allows the pipe to move vertically, and makes the corrugated pipe form uniform and the straightness meets the standard. It can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A metal compensator forming machine includes a worktable, on which a turntable is fixedly connected. The turntable is electrically connected to an external main controller via a connecting cable. A large gear is fixedly connected to the turntable. Two carriers are symmetrically fixedly connected to the outer side of the turntable. A top plate is fixedly connected to the worktable located at the rear of the turntable via several pillars. A lead screw is rotatably connected between the top plate and the carriers. A small gear is fixedly connected to the outer side of the lead screw, and the small gear meshes with the large gear. A lifting plate is movably connected between the two lead screws. Several slides are provided in the lifting plate. A positioner is provided on the lifting plate. The positioner includes several mounting seats and an adjusting ring movably connected to the lower end of the lifting plate. The mounting seats are movably connected to the lifting plate. An extension plate is fixedly connected to the mounting seats. A positioning plate is movably connected to one end of the extension plate.

[0007] As a further preferred embodiment of this utility model, a hydraulic cylinder is fixedly connected to the bottom of the workbench. The hydraulic cylinder is connected to an external pump station through a hydraulic pipe. A wave-supporting mechanism is fixedly connected to the hydraulic cylinder. The wave-supporting mechanism passes through the channel between the turntable and the lifting plate, thereby facilitating the lifting of the pipe and the wave-supporting formation by the lifting plate and the positioner.

[0008] As a further preferred embodiment of this utility model, two ball nuts are fixedly connected to the outer side of each lifting plate, and each ball nut is threadedly connected to one of the lead screws. This allows the large gear driven by the turntable to rotate the two small gears synchronously. Thus, the small gears drive the lead screw to rotate inside one of the ball nuts on the outer side of the lifting plate, thereby lifting the lifting plate. This, in conjunction with the positioner, allows the pipe to be lifted at a fixed distance.

[0009] As a further preferred embodiment of this utility model, one end of the extension plate is provided with an installation groove, and the extension plates located on both sides of the installation groove are provided with slots. The end of the extension plate near the installation groove is also fixedly connected to a fixing block by a fixing bolt. Two slots are fixedly connected to one side of the fixing block relative to the extension plate, and the slots are engaged in one of the slots.

[0010] As a further preferred embodiment of this utility model, a plurality of ball bearings are rotatably connected to one side of the positioning plate, and a first slider is fixedly connected to the bottom of the positioning plate. The first slider is also slidably connected in the mounting groove, and the fixing bolt passes through the first slider. A compression spring is fitted onto the fixing bolt located between the inner side of the positioning plate and the first slider. When different diameter wave-supporting mechanisms are used to perform wave-supporting operations on pipes of different diameters, the extension plate can be adjusted so that the lower end of the pipe is placed on the fixing block, and the ball bearings are positioned against the outside of the pipe by means of the compression spring of the positioning plate, thus ensuring the stability of the pipe during wave-supporting operations.

[0011] As a further preferred embodiment of this utility model, a second slider is fixedly connected to the lower end of the mounting base, a fixed shaft is fixedly connected to the lower end of the second slider, and the second slider is slidably connected in one of the slide tracks.

[0012] As a further preferred embodiment of this utility model, a number of limiting plates are fixedly connected to the lower end of the lifting plate for installing the adjusting ring and allowing the adjusting ring to rotate at the lower end of the lifting plate. An annular groove is provided at the lower end of the adjusting ring, and the adjusting ring is rotatably connected between the limiting plates through the groove. A number of protrusions are fixedly connected to the outer side of the adjusting ring, and a connecting rod is rotatably connected between the protrusions and one of the fixed shafts. Thus, by rotating the adjusting ring, the mounting seat can be radially slid within the corresponding slide rail in coordination with the protrusions and the connecting rod. Furthermore, the set positions of the fixed block and the positioning plate can be adjusted by the extension plate to adapt to wave-supporting mechanisms and pipes of different diameters.

[0013] As a further preferred embodiment of this utility model, the adjusting ring is internally threaded with an operating handle, which allows the adjusting ring to be manually rotated. The operating handle is rotated upwards and contacts the bottom of the lifting plate, thereby limiting and fixing the adjusting ring.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] In this invention, the multi-component locator can flexibly adapt to pipes of different diameters through the cooperation of multiple components, and achieve stable positioning with the help of the compression spring and ball bearings, avoiding shaking and displacement during processing. The pipe can move vertically between the positioning structures to meet the adaptive displacement requirements when corrugating, so that the size of the corrugated pipe crests and troughs is uniform and the wall thickness is consistent. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0017] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0018] Figure 3 This is a schematic diagram of the assembly structure of the positioner and lifting plate of this utility model;

[0019] Figure 4 This is a schematic diagram of the disassembled structure of the extension plate and positioning plate of this utility model.

[0020] In the diagram: 1. Workbench; 2. Turntable; 3. Large gear; 4. Platform; 5. Wave support mechanism; 6. Small gear; 7. Support column; 8. Top plate; 9. Lead screw; 10. Lifting plate; 11. Slide rail; 12. Positioner; 13. Mounting base; 14. Extension plate; 15. Positioning plate; 16. Adjusting ring; 17. Hydraulic cylinder; 18. Mounting groove; 19. Slot; 20. Fixing block; 21. Fixing bolt; 22. Ball bearing; 23. Clamping block; 24. First slider; 25. Second slider; 26. Fixed shaft; 27. Limiting plate; 28. Protrusion; 29. ​​Rotary groove; 30. Operating handle; 31. Connecting rod. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] like Figures 1-4 As shown, the present invention provides a metal compensator forming machine, including a worktable 1, a turntable 2 fixedly connected to the worktable 1, the turntable 2 being electrically connected to an external main controller via a connecting line, a large gear 3 fixedly connected to the turntable 2, two carriers 4 symmetrically fixedly connected to the outer side of the turntable 2, a top plate 8 fixedly connected to the worktable 1 located at the rear side of the turntable 2 via several support columns 7, a lead screw 9 rotatably connected between the top plate 8 and the carriers 4, a small gear 6 fixedly connected to the outer side of the lead screw 9, and the small gear 6 meshing with the large gear 3, a lifting plate 10 movably connected between the two lead screws 9, a number of slides 11 opened in the lifting plate 10, a positioner 12 provided on the lifting plate 10, the positioner 12 including several mounting seats 13 and an adjusting ring 16 movably connected to the lower end of the lifting plate 10, the mounting seats 13 movably connected to the lifting plate 10, an extension plate 14 fixedly connected to the mounting seats 13, and a positioning plate 15 movably connected to one end of the extension plate 14.

[0023] like Figures 1-2 As shown, a hydraulic cylinder 17 is fixedly connected to the bottom of the workbench 1. The hydraulic cylinder 17 is connected to an external pump station through a hydraulic pipe. A wave-supporting mechanism 5 is fixedly connected to the hydraulic cylinder 17. The wave-supporting mechanism 5 passes through the channel between the turntable 2 and the lifting plate 10, so that the pipeline can be lifted and wave-supported by the lifting plate 10 and the positioner 12. Two ball nuts are fixedly connected to the outer side of the lifting plate 10, and the ball nuts are threaded to one of the lead screws 9 respectively. The turntable 2 can drive the large gear 3 to rotate the two small gears 6 synchronously. Then, the small gear 6 drives the lead screw 9 to rotate in one of the ball nuts on the outer side of the lifting plate 10 to lift the lifting plate 10. This can be used with the positioner 12 to lift the pipeline at a fixed distance.

[0024] like Figures 2-4As shown, one end of the extension plate 14 has a mounting groove 18, and the extension plates 14 on both sides of the mounting groove 18 have slots 19. A fixing block 20 is also fixedly connected to the end of the extension plate 14 near the mounting groove 18 by fixing bolts 21. Two locking blocks 23 are fixedly connected to one side of the fixing block 20 relative to the side of the extension plate 14, and the locking blocks 23 engage in one of the slots 19. Several ball bearings 22 are rotatably connected to one side of the positioning plate 15, and a first slider 24 is fixedly connected to the bottom of the positioning plate 15. The first slider 24 is also slidably connected to... The mounting slot 18 is fitted with a fixing bolt 21 that passes through the first slider 24. The fixing bolt 21, located on one side of the positioning plate 15 between the fixing bolt 21 and the first slider 24, is fitted with a compression spring. When different diameter wave-supporting mechanisms 5 are used to wave-support pipes of different diameters, the extension plate 14 can be adjusted so that the lower end of the pipe is placed on the fixing block 20. The positioning plate 15, with the help of the compression spring, causes the ball bearing 22 to abut against the outside of the pipe for positioning, ensuring the stability of the pipe during wave-supporting operations. The lower end of the mounting base 13 is fixedly connected to... The second slider 25 has a fixed shaft 26 fixedly connected to its lower end. The second slider 25 is slidably connected within one of the slide rails 11. Several limiting plates 27 are fixedly connected to the lower end of the lifting plate 10 to facilitate the installation of the adjusting ring 16 and to allow the adjusting ring 16 to rotate at the lower end of the lifting plate 10. An annular groove 29 is provided at the lower end of the adjusting ring 16, through which the adjusting ring 16 is rotatably connected between the limiting plates 27. Several protrusions 28 are fixedly connected to the outer side of the adjusting ring 16, and the protrusions 28 are connected to one of the fixed shafts. A connecting rod 31 is rotatably connected between 26. Thus, by rotating the adjusting ring 16, the mounting base 13 can be radially slid within the corresponding slide rail 11 in coordination with the protrusion 28 and the connecting rod 31. Furthermore, the setting positions of the fixing block 20 and the positioning plate 15 can be adjusted by the extension plate 14 to adapt to wave-supporting mechanisms 5 and pipes of different diameters. The adjusting ring 16 is internally threaded with an operating handle 30. The adjusting ring 16 can be manually rotated by the operating handle 30, and the adjusting ring 16 can be limited and fixed by the upward rotation of the operating handle 30 against the bottom of the lifting plate 10.

[0025] It should be noted that this utility model is a metal compensator forming machine. In use, the positioner 12 is first adjusted according to the pipe diameter, i.e., the operating handle 30 at the lower end of the adjusting ring 16 is manually rotated. The adjusting ring 16 rotates between several limiting plates 27 at the lower end of the lifting plate 10 via the rotating groove 29. Simultaneously, several protrusions 28 on its outer side drive several connecting rods 31 to pull the second slider 25 at the lower end of the corresponding mounting base 13, causing the second slider 25 to slide radially within the slide rail 11 of the lifting plate 10. Adjust the position of the extension plate 14 so that the positioning plate 15 is adapted to the pipe diameter. Then, rotate the operating handle 30 upward to abut against the bottom of the lifting plate 10, thereby limiting the adjustment ring 16. Then, insert the pipe through the outside of the wave-supporting mechanism 5, and place the lower end of the pipe on several fixing blocks 20 of the positioner 12. The several positioning plates 15, with the help of the compression spring force of the first slider 24, drive the ball 22 on one side to tightly abut against the outside of the pipe, thereby positioning the pipe and preventing it from shifting during wave support.

[0026] After positioning is completed, the external main controller controls the corrugating mechanism 5 to start corrugating the pipeline. After a waveform is formed, the turntable 2 is started. The turntable 2 drives the large gear 3 to rotate. The large gear 3 meshes with the small gear 6 on the outside of the lead screw 9, driving the two lead screws 9 to rotate synchronously, thereby driving the lifting plate 10 to rise and fall smoothly. This lifts the pipeline to a fixed height and then continues to corrugate through the corrugating mechanism 5. During the corrugating operation, the lower end of the pipeline will move vertically between several sets of positioning plates 15 and ball bearings 22 to ensure that the corrugated pipe is formed evenly and the straightness meets the standard.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A metal compensator forming machine, characterized in that: The system includes a workbench (1), on which a turntable (2) is fixedly connected. The turntable (2) is electrically connected to an external main controller via a connecting cable. A large gear (3) is fixedly connected to the turntable (2). Two platforms (4) are symmetrically fixedly connected to the outside of the turntable (2). A top plate (8) is fixedly connected to the workbench (1) located behind the turntable (2) via several support columns (7). A lead screw (9) is rotatably connected between the top plate (8) and the platforms (4). A small gear (6) is fixedly connected to the outside of the lead screw (9), and the small gear (6) is connected to the large gear. The gears (3) are meshed and connected. A lifting plate (10) is movably connected between the two lead screws (9). Several slides (11) are provided in the lifting plate (10). A positioner (12) is provided on the lifting plate (10). The positioner (12) includes several mounting seats (13) and an adjusting ring (16) movably connected to the lower end of the lifting plate (10). The mounting seats (13) are movably connected to the lifting plate (10). An extension plate (14) is fixedly connected to the mounting seat (13). A positioning plate (15) is movably connected to one end of the extension plate (14).

2. The metal compensator forming machine according to claim 1, characterized in that: A hydraulic cylinder (17) is fixedly connected to the bottom of the workbench (1). The hydraulic cylinder (17) is connected to an external pump station through a hydraulic pipe. A wave-supporting mechanism (5) is fixedly connected to the hydraulic cylinder (17). The wave-supporting mechanism (5) passes through the channel between the turntable (2) and the lifting plate (10).

3. The metal compensator forming machine according to claim 1, characterized in that: Two ball nuts are fixedly connected to the outer side of each lifting plate (10), and each ball nut is threadedly connected to one of the lead screws (9).

4. A metal compensator forming machine according to claim 1, characterized in that: One end of the extension plate (14) is provided with an installation groove (18), and the extension plates (14) located on both sides of the installation groove (18) are provided with slots (19). The end of the extension plate (14) near the installation groove (18) is also fixedly connected to a fixing block (20) by a fixing bolt (21). The fixing block (20) is fixedly connected to two slots (23) on one side of the extension plate (14), and the slots (23) are engaged in one of the slots (19).

5. A metal compensator forming machine according to claim 4, characterized in that: A plurality of ball bearings (22) are rotatably connected to one side of the positioning plate (15), and a first slider (24) is fixedly connected to the bottom of the positioning plate (15). The first slider (24) is also slidably connected in the mounting groove (18). The fixing bolt (21) passes through the first slider (24). The fixing bolt (21) located between the positioning plate (15) and the first slider (24) is fitted with a compression spring.

6. A metal compensator forming machine according to claim 1, characterized in that: The mounting base (13) is fixedly connected to a second slider (25) at its lower end. The second slider (25) is fixedly connected to a fixed shaft (26) at its lower end. The second slider (25) is slidably connected in one of the slides (11).

7. A metal compensator forming machine according to claim 6, characterized in that: The lower end of the lifting plate (10) is fixedly connected to several limiting plates (27), and the lower end of the adjusting ring (16) is provided with an annular rotating groove (29). The adjusting ring (16) is rotatably connected between several limiting plates (27) through the rotating groove (29). Several protrusions (28) are fixedly connected to the outside of the adjusting ring (16), and a connecting rod (31) is rotatably connected between the protrusions (28) and one of the fixed shafts (26).

8. A metal compensator forming machine according to claim 1, characterized in that: The adjusting ring (16) is internally threaded with an operating handle (30).

Citation Information

Patent Citations

  • Vertical corrugated pipe hydraulic forming equipment

    CN223097727U