Automatic alignment assembly device for pressure vessel flange

Abstract

The utility model provides a pressure vessel flange auto-alignment assembly device, including: base and main slider, the upper surface of base is respectively fixed connection hydraulic cylinder and receiving cylinder, the telescopic rod of hydraulic cylinder is fixed connection lifting plate, and the lower surface of lifting plate is symmetrically connected guide rod, the lower end of guide rod is in sliding connection in receiving cylinder, and the main slider is fixed in the receiving cylinder. The upper surface of the lifting plate is movably connected with a carrying roller through a bearing seat, the upper surface of the main sliding block is fixedly connected with a movable plate, the upper surface of the movable plate is fixedly connected with a vertical plate, an auxiliary motor, a guide plate and a mounting plate, the vertical plate is movably connected with an auxiliary lead screw through a bearing, and the auxiliary lead screw is connected with the auxiliary motor through a coupler. Through the cooperation of the main motor, the main lead screw, the main sliding block, the movable plate, the mounting plate, the infrared sensor, the lifting plate and the hydraulic cylinder, the device can automatically align and assemble a pipe fitting and a pressure vessel flange piece, then subsequent welding treatment is facilitated, and the assembly efficiency is improved in an auxiliary mode.

Description

An automatic alignment and assembly device for pressure vessel flanges Technical Field

[0001] This utility model relates to the field of pressure vessel flange technology, and specifically to an automatic alignment and assembly device for pressure vessel flanges. Background Technology

[0002] Pressure vessels are among the most widely used equipment in industries such as petrochemicals, power, and light industry. Due to process requirements, the need for installation and maintenance of internal components, and ease of manufacturing and transportation, pressure vessels often require a detachable structure. A flange connection is an assembly consisting of a pair of flanges, several bolts, nuts, and a gasket. Common shell-and-tube heat exchangers, reactors, towers, and filters are usually equipped with vessel flanges. Pressure vessel flanges refer to the flanges connecting the shell and head, shell and shell, or head and tube sheet. They have the same function and similar appearance as pipe flanges, but are not interchangeable due to the different definitions of nominal diameter. Their function is to connect different pressure-bearing components. Together, they ensure that no leakage occurs at the connection points. The alignment and assembly of pressure vessel flanges involves two dimensions: body connection: precise mating of flanges to ensure the integrity of the vessel's pressure bearing capacity; system connection: matching installation of flanges and pipelines to ensure the sealing of the medium transport. However, in small-scale factories, the alignment and assembly of the system connection between pressure vessel flanges and pipelines is usually done manually by workers, which is time-consuming and labor-intensive, reducing the efficiency of pressure vessel flange alignment and assembly. At the same time, the manual alignment and assembly method is prone to misalignment welding problems, which can turn pressure vessel flanges into scrap and reduce the overall yield rate in the production process. Summary of the Invention

[0003] To overcome the shortcomings of the existing technology, an automatic alignment and assembly device for pressure vessel flanges is provided to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, an automatic alignment and assembly device for pressure vessel flanges is provided, comprising: a base and a main slide block. A hydraulic cylinder and a receiving cylinder are fixedly connected to the upper surface of the base, respectively. The telescopic rod of the hydraulic cylinder is fixedly connected to a lifting plate, and guide rods are symmetrically connected to the lower surface of the lifting plate. The lower ends of the guide rods are slidably connected inside the receiving cylinder. A carrying roller is movably connected to the upper surface of the lifting plate via a bearing seat, and a pipe fitting is movably connected to the upper surface of the carrying roller. A main slide groove is formed on the upper surface of the base, and a main screw is movably connected to the main slide groove via a bearing. The main slide block is slidably connected to the main slide groove via a screwed main screw. A main motor is fixedly connected to the end face of the base. The motor is connected to the main lead screw via a coupling. A movable plate is fixedly connected to the upper surface of the main slider. A vertical plate, an auxiliary motor, a guide plate, and a mounting plate are fixedly connected to the upper surface of the movable plate. The vertical plate is movably connected to the auxiliary lead screw via a bearing. The auxiliary lead screw is connected to the auxiliary motor via a coupling. Threaded holes are provided on the surfaces of the push plate and the clamping plate relative to the position of the auxiliary lead screw. The pressure vessel flange is fixedly connected to the upper part of the movable plate via the clamping plate. An adjustment groove is provided inside the mounting plate. A transmission rod is movably connected to the adjustment groove via a bearing. The movable block is slidably connected to the adjustment groove via the threaded transmission rod. An infrared sensor is fixedly connected to the surface of the movable block.

[0005] Preferably, the lifting plate has a square structure, the cross-section of the lifting plate has a U-shaped structure, and multiple sets of fitting grooves are symmetrically opened on both sides of the groove on the upper surface of the lifting plate. The two ends of the carrying roller are movably connected to bearing seats, and the bearing seats are engaged in the fitting grooves.

[0006] Preferably, the main slider has a square structure, the size of the main slider and the main slide groove are matched, and the movable plate fixedly connected to the upper surface of the main slider has a rectangular structure, and the lower surface of the movable plate is attached to the upper surface of the base. The movable plate and the main slider are combined to form a convex structure.

[0007] Preferably, the two sets of upright plates symmetrically connected at both ends of the upper surface of the movable plate are square in shape, and the two sets of guide plates symmetrically connected on both sides of the upper surface of the movable plate are long strips with L-shaped end faces. At the same time, guide grooves are provided on both sides of the push plate and the clamping plate relative to the bending part of the guide plate.

[0008] Preferably, the clamping plate has a semi-circular annular structure, the inner cavity of the clamping plate has a positioning groove, the positioning groove has a semi-circular annular structure, and the push plate fixedly connected to the outer side of the clamping plate has a right-angled triangular structure, the inclined surface of the push plate has an arc surface structure that fits the outer side of the clamping plate.

[0009] Preferably, the mounting plate has a long strip structure, and the mounting plate and the adjustment groove are combined to form a U-shaped structure. The mounting plate surface is provided with scale lines near the adjustment groove. At the same time, two sets of threads with opposite directions are symmetrically provided at both ends of the transmission rod, and the moving block screwed to the transmission rod has a square structure.

[0010] Preferably, four sets of guide rods are symmetrically connected at the four corners of the lower surface of the lifting plate. All four sets of guide rods are cylindrical in shape, and the storage cylinder slidably connected to the lower end of the guide rods is cylindrical in shape.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: through the cooperation of hydraulic cylinder, storage cylinder, guide rod, lifting plate and carrying roller, the device can smoothly adjust the height of the pipe fitting, thereby facilitating the alignment and assembly efficiency between the pipe fitting and the pressure vessel flange. At the same time, through the cooperation of main motor, main lead screw, main slider, moving plate, mounting plate, transmission rod, moving block and infrared sensor, the device can automatically determine whether the axes of the pipe fitting and the pressure vessel flange are collinear, thereby improving the efficiency of automatic alignment and assembly, and also helping to reduce the probability of misaligned welding and improve the overall production yield. Attached Figure Description

[0012] Figure 1 is a front view schematic diagram of an embodiment of the present utility model.

[0013] Figure 2 is a left-side view of an embodiment of this utility model.

[0014] Figure 3 is a partial right-side view of an embodiment of this utility model.

[0015] Figure 4 is a schematic diagram of the left view of an embodiment of this utility model.

[0016] In the diagram: 1. Base; 2. Storage cylinder; 3. Hydraulic cylinder; 4. Main slide rail; 5. Main slider; 6. Moving plate; 7. Main lead screw; 8. Main motor; 9. Guide rod; 10. Lifting plate; 11. Loading roller; 12. Pipe fitting; 13. Guide plate; 14. Secondary lead screw; 15. Clamping plate; 16. Transmission rod; 17. Pressure vessel flange; 18. Moving block; 19. Infrared sensor; 20. Mounting plate; 21. Vertical plate; 22. Push plate; 23. Secondary motor. Detailed Implementation

[0017] Referring to Figures 1 to 4, this utility model provides an automatic alignment and assembly device for pressure vessel flanges, comprising: a base 1 and a main slide block 5. A hydraulic cylinder 3 and a receiving cylinder 2 are fixedly connected to the upper surface of the base 1. The telescopic rod of the hydraulic cylinder 3 is fixedly connected to a lifting plate 10, while guide rods 9 are symmetrically connected to the lower surface of the lifting plate 10. The lower ends of the guide rods 9 are slidably connected inside the receiving cylinder 2. A carrying roller 11 is movably connected to the upper surface of the lifting plate 10 via a bearing seat. A pipe fitting 12 is movably connected to the upper surface of the carrying roller 11. A main slide groove 4 is formed on the upper surface of the base 1. A main screw 7 is movably connected to the main slide groove 4 via a bearing. The main slide block 5 is slidably connected to the main slide groove 4 via the screwed main screw 7. A main motor 8 is fixedly connected to the end face of the base 1. The main lead screw 7 is connected via a coupling. The upper surface of the main slider 5 is fixedly connected to a moving plate 6. The upper surface of the moving plate 6 is fixedly connected to a vertical plate 21, an auxiliary motor 23, a guide plate 13, and a mounting plate 20. The vertical plate 21 is movably connected to an auxiliary lead screw 14 via a bearing. The auxiliary lead screw 14 is connected to the auxiliary motor 23 via a coupling. The surfaces of the push plate 22 and the clamping plate 15 are respectively provided with screw holes relative to the position of the auxiliary lead screw 14. The pressure vessel flange 17 is fixedly connected to the upper part of the moving plate 6 via the clamping plate 15. At the same time, an adjustment groove is provided inside the mounting plate 20. The transmission rod 16 is movably connected to the adjustment groove via a bearing. The moving block 18 is slidably connected to the adjustment groove via the screwed transmission rod 16. The surface of the moving block 18 is fixedly connected to an infrared sensor 19.

[0018] In this embodiment, the pressure vessel flange 17 is first placed between two sets of clamping plates 15. The auxiliary motor 23, electrically connected to the PLC assembly, is then started. The output shaft of the auxiliary motor 23 drives the auxiliary lead screw 14 to rotate via a coupling. The auxiliary lead screw 14 can push the clamping plates 15, which are screwed at both ends, to move synchronously in opposite directions, thereby clamping and fixing the pressure vessel flange 17. Then, the transmission rod 16 is rotated, and through its threaded structure, it pushes the two sets of screwed moving blocks 18 to move synchronously in opposite directions. By using the scale lines and the dimensional data of the inner cavity of the pressure vessel flange 17, the efficiency of position adjustment of the moving blocks 18 and the infrared sensor 19 can be improved, allowing the infrared rays emitted by the infrared sensor 19 to conform to the top and bottom of the inner cavity of the pressure vessel flange 17. Afterwards… The pipe fitting 12 is placed on the surface of the carrying roller 11. The electrically connected hydraulic cylinder 3 is activated through the PLC assembly. The extension rod of the hydraulic cylinder 3 can push the fixedly connected lifting plate 10 to move upward at a low speed. The lifting plate 10 can synchronously drive the pipe fitting 12 to move upward through the carrying roller 11. When the state of the infrared sensor 19 above the mounting plate 20 changes sequentially from no signal to detecting the reflected infrared signal due to the end face of the pipe fitting 12 being blocked, and then back to no signal, and the infrared sensor 19 below the mounting plate 20 is also in the state of no signal, that is, when the axes of the pipe fitting 12 and the pressure vessel flange 17 are collinear, the states of the two sets of infrared sensors 19 meet the preset trigger conditions inside the PLC assembly. Then, when the infrared sensor 19 transmits the signal to the electrically connected PLC assembly, The PLC component can shut down the hydraulic cylinder 3 and start the electrically connected main motor 8. The output shaft of the main motor 8 drives the main lead screw 7 to rotate through the coupling. The main lead screw 7 pushes the moving plate 6, clamping plate 15, mounting plate 20 and pressure vessel flange 17 to move synchronously through the screwed main slider 5, so that the end face of the pressure vessel flange 17 and the end face of the pipe fitting 12 can abut against each other, thereby realizing the automatic alignment and assembly of the pressure vessel flange 17, which facilitates subsequent welding processing, improves assembly efficiency, reduces the probability of misaligned welding, and improves the overall processing yield. At the same time, the PLC component fixedly connected to the upper surface of the main motor 8 housing can adopt common brand models on the market.

[0019] As a preferred embodiment, the lifting plate 10 has a square structure, the cross-section of the lifting plate 10 has a U-shaped structure, and multiple sets of fitting grooves are symmetrically opened on both sides of the groove on the upper surface of the lifting plate 10. The two ends of the carrying roller 11 are movably connected to the bearing seats, and the bearing seats are engaged in the fitting grooves.

[0020] In this embodiment, as shown in Figures 1 and 3, the opening of the fitting groove of the lifting plate 10 allows the carrying roller 11 to flexibly adjust its position in the groove on the upper surface of the lifting plate 10 through the bearing seat, thereby improving the positioning effect of the lifting plate 10 on pipes 12 of different sizes, improving the stability of the pipes 12 when placed, and facilitating the subsequent rotation of the pipes 12.

[0021] In a preferred embodiment, the main slider 5 has a square structure, the main slider 5 and the main slide groove 4 are matched in size, and the movable plate 6 fixedly connected to the upper surface of the main slider 5 has a rectangular structure, and the lower surface of the movable plate 6 is attached to the upper surface of the base 1. The movable plate 6 and the main slider 5 are combined to form a convex structure.

[0022] In this embodiment, as shown in Figures 1 and 2, the main slider 5 and the main slide groove 4 are matched in size, which can help enhance the stability of the main slider 5 and the moving plate 6 when they move. Furthermore, the lower surface of the moving plate 6 slides against the upper surface of the base 1, which can further enhance the stability of the moving plate 6 when it moves and avoid the problem of tilting at both ends of the moving plate 6.

[0023] In a preferred embodiment, the two sets of upright plates 21 symmetrically connected at both ends of the upper surface of the movable plate 6 are both square in shape, while the two sets of guide plates 13 symmetrically connected on both sides of the upper surface of the movable plate 6 are both long strips in shape, and the end face of the guide plate 13 is L-shaped. At the same time, guide grooves are opened on both sides of the push plate 22 and the clamping plate 15 relative to the bending part of the guide plate 13.

[0024] In this embodiment, as shown in Figures 1, 2 and 4, the upright plate 21 can limit the movement range of the push plate 22 and the clamping plate 15, preventing the push plate 22 and the clamping plate 15 from accidentally disengaging from the auxiliary lead screw 14. Furthermore, the guide plate 13 can help enhance the stability of the push plate 22 and the clamping plate 15 when sliding on the surface of the moving plate 6, and enhance the clamping and fixing effect of the clamping plate 15 on the pressure vessel flange 17.

[0025] In a preferred embodiment, the clamping plate 15 has a semi-circular annular structure, and a positioning groove is provided in the inner cavity of the clamping plate 15. The positioning groove has a semi-circular annular structure, and the push plate 22 fixedly connected to the outer side of the clamping plate 15 has a right-angled triangular structure. The inclined surface of the push plate 22 has an arc surface structure that fits the outer side of the clamping plate 15.

[0026] In this embodiment, as shown in Figures 1, 2 and 4, the positioning groove in the inner cavity of the clamping plate 15 can help enhance the positioning and fixing effect of the pressure vessel flange 17, and avoid the problem of accidental rotation of the pressure vessel flange 17. At the same time, the push plate 22 can help enhance the screwing and pushing effect of the auxiliary screw 14 on the clamping plate 15, and enhance the stability of the clamping plate 15 when it moves.

[0027] In a preferred embodiment, the mounting plate 20 has a long strip structure. The mounting plate 20 and the adjustment groove are combined to form a U-shaped structure. The mounting plate 20 has scale lines on its surface near the adjustment groove. At the same time, the two ends of the transmission rod 16 have two sets of threads with opposite directions. The moving block 18 screwed to the transmission rod 16 has a square structure.

[0028] In this embodiment, as shown in Figures 1 and 4, the dimensions of the moving block 18 and the adjusting groove are matched, thereby enhancing the stability of the moving block 18 and the infrared sensor 19 during movement. Furthermore, the high-precision thread structure on the surface of the transmission rod 16 can help enhance the displacement accuracy of the moving block 18 and the infrared sensor 19 during movement, thereby improving the accuracy and efficiency of the automatic alignment and assembly of the device.

[0029] As a preferred embodiment, four sets of guide rods 9 are symmetrically connected at the four corners of the lower surface of the lifting plate 10. All four sets of guide rods 9 are cylindrical in shape, and the storage cylinder 2 slidably connected to the lower end of the guide rods 9 is also cylindrical in shape.

[0030] In this embodiment, as shown in Figures 1 and 3, the dimensions of the guide rod 9 and the inner cavity of the storage cylinder 2 are matched, which can help enhance the stability of the lifting plate 10 when it moves, and ensure that the lifting plate 10 can push the pipe 12 to move upward in a horizontal state, thereby helping to improve the efficiency and quality of the device for automatic alignment and assembly of the pressure vessel flange 17.

Claims

1. An automatic alignment and assembly device for pressure vessel flanges, comprising: The base (1) and the main slider (5) are characterized in that: the upper surface of the base (1) is fixedly connected to a hydraulic cylinder (3) and a storage cylinder (2), the telescopic rod of the hydraulic cylinder (3) is fixedly connected to a lifting plate (10), and the lower surface of the lifting plate (10) is symmetrically connected to a guide rod (9), the lower end of the guide rod (9) is slidably connected in the storage cylinder (2), and the upper surface of the lifting plate (10) is movably connected to a carrying roller (11) through a bearing seat, and the upper surface of the carrying roller (11) is movably connected to a pipe fitting (12), while the upper surface of the base (1) is provided with a main slide groove (4), the main slide groove (4) is movably connected to a main screw rod (7) through a bearing, and the main slider (5) is slidably connected in the main slide groove (4) through a screwed main screw rod (7), and the end face of the base (1) is fixedly connected to a main motor (8), the main motor (8) is connected to the main screw rod (7) through a coupling, and so on. The upper surface of the main slider (5) is fixedly connected to the moving plate (6). The upper surface of the moving plate (6) is fixedly connected to the vertical plate (21), the auxiliary motor (23), the guide plate (13), and the mounting plate (20). The vertical plate (21) is movably connected to the auxiliary lead screw (14) through the bearing. The auxiliary lead screw (14) is connected to the auxiliary motor (23) through the coupling. The surfaces of the push plate (22) and the clamping plate (15) are respectively provided with screw holes relative to the position of the auxiliary lead screw (14). The pressure vessel flange (17) is fixedly connected to the upper part of the moving plate (6) through the clamping plate (15). At the same time, the mounting plate (20) is provided with an adjustment groove. The transmission rod (16) is movably connected to the adjustment groove through the bearing. The moving block (18) is slidably connected to the adjustment groove through the screwed transmission rod (16). The surface of the moving block (18) is fixedly connected to the infrared sensor (19).

2. The automatic alignment and assembly device for pressure vessel flanges according to claim 1, characterized in that, The lifting plate (10) has a square structure as a whole, and the cross section of the lifting plate (10) has a U-shaped structure. Multiple sets of fitting grooves are symmetrically opened on both sides of the groove on the upper surface of the lifting plate (10). The two ends of the carrying roller (11) are movably connected to the bearing seats, and the bearing seats are engaged in the fitting grooves.

3. The automatic alignment and assembly device for pressure vessel flanges according to claim 1, characterized in that, The main slider (5) has a square structure, and the main slider (5) and the main slide groove (4) are matched in size. The movable plate (6) fixedly connected to the upper surface of the main slider (5) has a rectangular structure, and the lower surface of the movable plate (6) is attached to the upper surface of the base (1). The movable plate (6) and the main slider (5) are combined to form a convex structure.

4. The automatic alignment and assembly device for pressure vessel flanges according to claim 1, characterized in that, The two sets of upright plates (21) symmetrically connected at both ends of the upper surface of the movable plate (6) are both square in shape, while the two sets of guide plates (13) symmetrically connected on both sides of the upper surface of the movable plate (6) are both long strips in shape, and the end face of the guide plate (13) is L-shaped. At the same time, the push plate (22) and the clamping plate (15) are respectively opened with guide grooves at the positions of the bending parts of the guide plate (13) on both sides.

5. The automatic alignment and assembly device for pressure vessel flanges according to claim 1, characterized in that, The clamping plate (15) has a semi-circular ring structure. The clamping plate (15) has a positioning groove in its inner cavity. The positioning groove has a semi-circular ring structure. The push plate (22) fixedly connected to the outer side of the clamping plate (15) has a right-angled triangular structure. The inclined surface of the push plate (22) is an arc surface structure that fits the outer side of the clamping plate (15).

6. The automatic alignment and assembly device for pressure vessel flanges according to claim 1, characterized in that, The mounting plate (20) has a long strip structure. The mounting plate (20) and the adjustment groove are combined to form a U-shaped structure. The mounting plate (20) has scale lines on its surface near the adjustment groove. At the same time, the two ends of the transmission rod (16) have two sets of threaded structures with opposite directions. The moving block (18) screwed to the transmission rod (16) has a square structure.

7. The automatic alignment and assembly device for pressure vessel flanges according to claim 1, characterized in that, Four sets of guide rods (9) are symmetrically connected at the four corners of the lower surface of the lifting plate (10). All four sets of guide rods (9) are cylindrical in shape, and the storage tube (2) slidably connected to the lower end of the guide rods (9) is cylindrical in shape.

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