Cylinder straightening device for pressure vessel manufacturing

Abstract

The utility model relates to the technical fields of pressure vessel manufacturing, in particular to pressure vessel manufacturing is used cylinder roundness correction device, it can carry out inside and outside roundness correction to pressure vessel cylinder, effectively improves the roundness correction effect to pressure vessel cylinder, improves practicality, including work table, four groups of support legs are fixedly connected to the work table bottom end rim annular array, double -shaft motor fixed mounting is in work table bottom end center, the fixed connection has gear disc on double -shaft motor downside output shaft, three groups of L type support are fixedly connected to the work table top rim annular array, and outer reciprocating screw rod rotation is installed on the work table, three groups of outer hydraulic cylinders are fixedly installed on the annular array of outer ring outer wall, three groups of outer hydraulic cylinder output all are fixedly connected with outer support, and three groups of outer support all rotatoryly install outer correction cylinder, the inner roundness correction mechanism includes cylinder, is used for the roundness correction in the cylinder, the fixed mechanism includes three groups of clamping frame, is used for fixing cylinder.

Description

Technical Field

[0001] This utility model relates to the technical field of pressure vessel manufacturing, and in particular to a cylindrical alignment device for pressure vessel manufacturing. Background Technology

[0002] A pressure vessel is a sealed device that holds gas or liquid under pressure. In pressure vessel manufacturing, a circular cylinder is the most common, firstly because it is more aesthetically pleasing, and secondly because it has higher strength. The cylinder is generally formed by bending a rectangular plate and then welding the two ends together. Then, an arc-shaped base and a top cover are added to the two ends of the cylinder for sealing, thus obtaining a pressure vessel. However, during the bending and welding process, external forces may cause unevenness on the inner and outer surfaces of the cylinder, or the cylinder may not be round enough. Therefore, it is necessary to round the pressure vessel cylinder to ensure its roundness.

[0003] In the prior art group, Chinese patents with announcement number CN205966876U and CN209901971U disclose a pressure vessel cylinder rounding device. However, both of these devices can only squeeze from the inside of the cylinder outwards, and cannot effectively straighten the outside of the cylinder, resulting in poor cylinder rounding effect and insufficient practicality. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a cylinder rounding device for pressure vessel manufacturing that can perform internal and external rounding of pressure vessel cylinders, effectively improve the rounding effect of pressure vessel cylinders, and enhance practicality.

[0005] Technical solution

[0006] To achieve the above objectives, this utility model provides the following technical solution: a cylindrical alignment device for pressure vessel manufacturing, comprising a worktable, an outer alignment mechanism, an inner alignment mechanism, and a fixing mechanism. Four sets of support legs are fixedly connected in a circular array along the bottom edge of the worktable. The outer alignment mechanism includes a dual-axis motor, which is fixedly installed at the center of the bottom of the worktable. A gear disk is fixedly connected to the lower output shaft of the dual-axis motor. Three sets of L-shaped brackets are fixedly connected in a circular array at the top of the worktable, and an outer... The reciprocating lead screws are rotatably mounted on the worktable, with their bottom ends passing through the worktable. Gears are fixedly connected to the bottom ends of all three sets of external reciprocating lead screws, and all three gears mesh with a gear disc. Three sets of threaded sleeves are fixedly connected in a ring array on the outer wall of the outer ring, and these sleeves are screwed onto the three sets of gears. Three sets of external hydraulic cylinders are fixedly mounted in a ring array on the outer wall of the outer ring. External supports are fixedly connected to the output ends of all three sets of external hydraulic cylinders, and external correction rollers are rotatably mounted on each of the three external supports. The output shaft of the dual-axis motor is located on the upper side. A turntable is fixedly connected to the top of the worktable. The turntable is rotatably mounted on the top of the worktable. The internal calibration mechanism includes a cylindrical column, which is fixedly connected to the top of the turntable. A lifting motor is fixedly mounted on the top of the cylindrical column. An internal reciprocating screw is rotatably mounted on the cylindrical column and the turntable. The top of the internal reciprocating screw passes through the top of the cylindrical column and is fixedly connected to the output end of the lifting motor. Three sets of guide grooves are equidistantly arranged in annular pattern on the cylindrical column. A disc is screwed onto the internal reciprocating screw. Three sets of guide frames are fixedly connected at equal intervals on the outer wall of the disc. The guide frames are an integral structure with the disc. Each of the three sets of internal hydraulic cylinders is fixedly installed with an internal support. The output ends of the three sets of internal hydraulic cylinders are all fixedly connected to an internal bracket. An internal correction roller is rotatably installed on each of the three sets of internal supports. The fixing mechanism includes three sets of clamping frames. The three sets of clamping frames are fixedly connected to the top of the worktable in a circular array. A clamping hydraulic cylinder is fixedly installed on the outer end of each of the three sets of clamping frames. An arc-shaped clamping block is fixedly connected to the output end of each of the three sets of clamping hydraulic cylinders. The right end of the inner side of the clamping frame is set as an arc surface. The top end of the arc-shaped clamping block is aligned with the top end of the clamping frame, and the bottom end of the arc-shaped clamping block is in contact with the bottom end of the inner side of the clamping frame.

[0007] Preferably, a connecting plate is fixedly connected to the middle of both sides of each of the three sets of inner supports, a guide rod is fixedly connected to the inner side of each connecting plate, and a guide sleeve is fixedly connected to the outer side of both sides of the three sets of guide frames, with the guide rod slidably mounted on the guide sleeve.

[0008] Preferably, a reinforcing plate is fixedly connected between the outer side of each of the three sets of L-shaped brackets and the top of the workbench.

[0009] Preferably, all four sets of support legs are fixedly connected to anti-slip rubber pads at their bottom ends.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: In use, the cylinder is placed on three sets of clamping frames. The cylinder is not clamped or fixed initially. The inner hydraulic cylinder is activated, pushing the inner support towards the inner wall of the cylinder, thus pressing the inner straightening roller against the inner wall. The height of the disc can be adjusted by activating the lifting motor, allowing adjustment of the inner straightening roller's clamping position to a suitable height against the inner wall. Then, the outer straightening mechanism is used to straighten the cylinder's exterior. After the exterior straightening is completed, the clamping hydraulic cylinder is activated, pushing the arc-shaped clamping block to clamp the cylinder's bottom outer wall, fixing the cylinder in place. The dual-axis motor and lifting motor are then activated to straighten the cylinder's interior. The cooperation of the outer and inner straightening mechanisms completes the internal and external straightening of the cylinder, enabling the internal and external straightening of pressure vessel cylinders, effectively improving the straightening effect and enhancing practicality. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the isometric structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the bottom isometric structure of this utility model;

[0013] Figure 3 This is an isometric structural diagram of the external circle alignment mechanism of this utility model;

[0014] Figure 4 This is a partial isometric structural diagram of the external alignment mechanism of this utility model;

[0015] Figure 5 This is an isometric structural diagram of the internal alignment mechanism of this utility model;

[0016] Figure 6 This is a partial isometric structural diagram of the internal alignment mechanism of this utility model;

[0017] Figure 7 This is a partial isometric structural diagram of the fixing mechanism in this utility model;

[0018] The following are labels in the attached diagram: 1. Workbench; 2. Support leg; 3. Dual-axis motor; 4. Gear disk; 5. L-shaped bracket; 6. External reciprocating lead screw; 7. Gear; 8. Outer ring; 9. Screw sleeve; 10. External hydraulic cylinder; 11. External bracket; 12. External straightening roller; 13. Turntable; 14. Column cylinder; 15. Lifting motor; 16. Internal reciprocating lead screw; 17. Disc; 18. Guide frame; 19. Internal hydraulic cylinder; 20. Internal bracket; 21. Internal straightening roller; 22. Clamping frame; 23. Clamping hydraulic cylinder; 24. Arc-shaped clamping block; 25. Connecting plate; 26. Guide rod; 27. Guide sleeve plate; 28. Reinforcing plate; 29. ​​Anti-slip pad. Detailed Implementation

[0019] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0020] Example

[0021] Please see Figures 1-7The pressure vessel manufacturing cylinder rounding device of this utility model includes a worktable 1, a dual-axis motor 3, a cylindrical column 14, and three sets of clamping frames 22. Four sets of support legs 2 are fixedly connected in a ring array along the bottom edge of the worktable 1. The dual-axis motor 3 is fixedly installed at the center of the bottom of the worktable 1. A gear disk 4 is fixedly connected to the lower output shaft of the dual-axis motor 3. Three sets of L-shaped brackets 5 are fixedly connected in a ring array at the top of the worktable 1. An external reciprocating lead screw 6 is rotatably installed on each of the three sets of L-shaped brackets 5. The external reciprocating lead screw 6 is rotatably installed on the worktable 1, and the bottom end of the external reciprocating lead screw 6 is... Passing through the workbench 1, three sets of external reciprocating lead screws 6 are all fixedly connected to the bottom ends of gears 7, and all three sets of gears 7 mesh with gear discs 4. Three sets of threaded sleeves 9 are fixedly connected in an annular array on the outer wall of the outer ring 8, and the three sets of threaded sleeves 9 are respectively screwed onto the three sets of gears 7. Three sets of external hydraulic cylinders 10 are fixedly installed in an annular array on the outer wall of the outer ring 8. The output ends of the three sets of external hydraulic cylinders 10 are all fixedly connected to external brackets 11, and external correction rollers 12 are rotatably installed on the three sets of external brackets 11. A turntable 13 is fixedly connected to the upper output shaft of the dual-axis motor 3, and the turntable 13 is rotatably mounted on the output shaft. At the top of the workbench 1, a column cylinder 14 is fixedly connected to the top of the turntable 13. A lifting motor 15 is fixedly installed at the top of the column cylinder 14. An internal reciprocating screw 16 is rotatably installed on the column cylinder 14 and the turntable 13, and the top of the internal reciprocating screw 16 passes through the top of the column cylinder 14 and is fixedly connected to the output end of the lifting motor 15. Three sets of guide grooves are equidistantly arranged in annular pattern on the column cylinder 14. A disc 17 is screwed onto the internal reciprocating screw 16. Three sets of guide frames 18 are fixedly connected at equal intervals on the outer wall of the disc 17. The guide frames 18 and the disc 17 are an integral structure. All three sets of guide frames 18 are fixed with... The three sets of internal hydraulic cylinders 19 are all fixedly connected to the output ends of the three sets of internal hydraulic cylinders 19. The three sets of internal support rollers 21 are rotatably installed on the three sets of internal support rollers 20. The three sets of clamping frames 22 are fixedly connected to the top of the worktable 1 in a circular array. The three sets of clamping frames 22 are all fixedly installed with clamping hydraulic cylinders 23 on the outer ends. The three sets of clamping hydraulic cylinders 23 are all fixedly connected with arc-shaped clamping blocks 24 on the output ends. The right inner side of the clamping frame 22 is set as an arc surface. The top of the arc-shaped clamping block 24 is aligned with the top of the clamping frame 22. The bottom of the arc-shaped clamping block 24 is in contact with the bottom inner side of the clamping frame 22.In use, the cylinder is placed on the three sets of clamping frames 22, but not clamped or fixed initially. The inner hydraulic cylinder 19 is activated, pushing the inner support 20 towards the inner wall of the cylinder, thus pressing the inner straightening roller 21 against the inner wall. The height of the disc 17 is adjusted by activating the lifting motor 15, allowing adjustment of the pressing position of the inner straightening roller 21 to a suitable height against the inner wall. Then, the outer straightening mechanism is used to straighten the cylinder's exterior. After the exterior straightening is complete, the clamping hydraulic cylinder 23 is activated, pushing the arc-shaped clamping block 24 to clamp the cylinder's bottom outer wall, fixing the cylinder in place. The dual-axis motor 3 and the lifting motor 15 are then activated to straighten the cylinder's interior. The cooperation of the outer and inner straightening mechanisms completes the internal and external straightening of the cylinder, effectively improving the straightening effect and enhancing practicality of pressure vessel cylinders.

[0022] Each of the three sets of inner supports 20 has a connecting plate 25 fixedly connected to the middle of both sides. Each connecting plate 25 has a guide rod 26 fixedly connected to its inner side. Each of the three sets of guide frames 18 has a guide sleeve 27 fixedly connected to the outer side of both sides. The guide rod 26 is slidably mounted on the guide sleeve 27. During the rounding process, when the inner hydraulic cylinder 19 pushes the inner support 20 to move outward, the inner support 20 drives the guide rod 26 to slide along the guide sleeve 27 through the connecting plate 25. Through the guiding cooperation between the guide rod 26 and the guide sleeve 27, the inner support 20 moves more smoothly and reliably.

[0023] The outer side of each of the three sets of L-shaped brackets 5 is fixedly connected to the top of the workbench 1 with a reinforcing plate 28; by setting the reinforcing plate 28, the connection between the L-shaped bracket 5 and the workbench 1 can be made more secure and stable.

[0024] The bottom ends of all four sets of support legs 2 are fixedly connected with anti-slip rubber pads 29; by setting anti-slip rubber pads 29, the friction between the bottom end of the support leg 2 and the ground can be increased, so that the device can avoid slipping with the ground when placed.

[0025] The working principle of this utility model for a cylinder rounding device in pressure vessel manufacturing is as follows: When using the device, the cylinder is placed on three sets of clamping frames 22, but not yet clamped. The inner hydraulic cylinder 19 is activated, causing it to push the inner support 20 towards the inner wall of the cylinder, thus pressing the inner straightening roller 21 against the inner wall. By activating the lifting motor 15, the height of the disc 17 can be adjusted, thereby adjusting the pressing position of the inner straightening roller 21 to an appropriate height against the inner wall. Then, the outer rounding mechanism is used to round the cylinder externally. During the calibration process, the dual-axis motor 3 is activated, driving the gear disk 4 to rotate. The gear disk 4, through meshing with the gear 7, drives the outer reciprocating screw 6 to rotate, causing the outer reciprocating screw 6 to drive the outer ring 8 to move up and down reciprocally via the screw sleeve 9. Simultaneously, the dual-axis motor 3 also drives the turntable 13 to rotate, causing the turntable 13 to drive the column cylinder 14 to rotate. Since the inner calibration roller 21 is pressed against the inner wall of the cylinder, the column cylinder 14 drives the cylinder to rotate via the turntable 17. By activating the outer hydraulic cylinder 10, the outer hydraulic cylinder 10 pushes the outer support 11 toward the outer wall of the cylinder. The outer straightening roller 12 moves in the direction of rotation, causing it to abut against the outer wall of the cylinder. As the cylinder rotates and the outer ring 8 moves up and down, the outer straightening roller 12 rolls and moves up and down against the outer wall of the cylinder, thus straightening the outer surface of the cylinder. After the outer surface straightening is completed, the clamping hydraulic cylinder 23 is activated, causing it to push the arc-shaped clamping block 24 to clamp the bottom outer wall of the cylinder, fixing the cylinder in place. At this time, the outer hydraulic cylinder 10 drives the outer straightening roller 12 to move outward, causing it to detach from the outer wall of the cylinder. Then, the dual-axis motor 3 is activated... The lifting motor 15 and the dual-axis motor 3 drive the turntable 13 to rotate, which in turn drives the column cylinder 14 to rotate. The column cylinder 14 drives the inner support 20 to rotate through the disc 17 and the guide frame 18. By starting the lifting motor 15, the lifting motor 15 drives the inner reciprocating screw 16 to rotate, which in turn drives the disc 17 to move up and down reciprocally in the cooperation of the guide frame 18 and the guide groove. Thus, under the rotation of the column cylinder 14, the inner straightening roller 21 rolls up and down along the inner wall of the cylinder, thereby straightening the inside of the cylinder and completing the inner and outer straightening of the cylinder.

[0026] The cylindrical rounding device for pressure vessel manufacturing of this utility model has common mechanical installation, connection and setting methods. As long as it can achieve its beneficial effect, it can be implemented. The dual-axis motor 3, external hydraulic cylinder 10, lifting motor 15, internal hydraulic cylinder 19 and clamping hydraulic cylinder 23 of the cylindrical rounding device for pressure vessel manufacturing of this utility model are purchased from the market. Technical personnel in this industry only need to install and operate it according to the accompanying instruction manual.

[0027] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A cylinder rounding device for pressure vessel manufacturing, comprising a worktable (1), wherein four sets of support legs (2) are fixedly connected in a circular array along the bottom edge of the worktable (1), characterized in that, It also includes an outer circle alignment mechanism, an inner circle alignment mechanism, and a fixed mechanism; The external calibration mechanism includes a dual-axis motor (3), which is fixedly installed at the center of the bottom of the workbench (1). A gear disk (4) is fixedly connected to the output shaft of the dual-axis motor (3). Three sets of L-shaped brackets (5) are fixedly connected in a ring array at the top of the workbench (1). An external reciprocating lead screw (6) is rotatably installed on each of the three sets of L-shaped brackets (5). The external reciprocating lead screw (6) is rotatably installed on the workbench (1), and the bottom end of the external reciprocating lead screw (6) passes through the workbench (1). Gears (7) are fixedly connected to the bottom ends of the three sets of external reciprocating lead screws (6). All gears (7) mesh with gear disk (4). Three sets of screw sleeves (9) are fixedly connected to the annular array on the outer wall of the outer ring (8). The three sets of screw sleeves (9) are screwed onto the three sets of gears (7). Three sets of external hydraulic cylinders (10) are fixedly installed on the annular array on the outer wall of the outer ring (8). The output ends of the three sets of external hydraulic cylinders (10) are all fixedly connected to external brackets (11). External correction rollers (12) are rotatably installed on the three sets of external brackets (11). A turntable (13) is fixedly connected to the upper output shaft of the dual-axis motor (3). The turntable (13) is rotatably installed on the top of the workbench (1). An inner circle alignment mechanism, comprising a cylindrical tube (14) for aligning the inside of the cylinder; The fixing mechanism includes three sets of clamps (22) for fixing the cylinder.

2. The cylinder rounding device for pressure vessel manufacturing as described in claim 1, characterized in that, The column (14) is fixedly connected to the top of the turntable (13). A lifting motor (15) is fixedly installed on the top of the column (14). An inner reciprocating screw (16) is rotatably installed on the column (14) and the turntable (13). The top of the inner reciprocating screw (16) passes through the top of the column (14) and is fixedly connected to the output end of the lifting motor (15). Three sets of guide grooves are equidistantly opened on the column (14). A disc (17) is screwed onto the inner reciprocating screw (16). Three sets of guide frames (18) are fixedly connected at equal intervals on the outer wall of the disc (17). The guide frames (18) and the disc (17) are an integral structure. An inner hydraulic cylinder (19) is fixedly installed on each of the three sets of guide frames (18). An inner bracket (20) is fixedly connected to the output end of each of the three sets of inner hydraulic cylinders (19). An inner correction roller (21) is rotatably installed on each of the three sets of inner brackets (20).

3. The cylinder rounding device for pressure vessel manufacturing as described in claim 2, characterized in that, The three sets of clamping frames (22) are fixedly connected to the top of the workbench (1) in a ring array. Each of the three sets of clamping frames (22) has a clamping hydraulic cylinder (23) fixedly installed on its outer side. Each of the three sets of clamping hydraulic cylinders (23) has an arc-shaped clamping block (24) fixedly connected to its output end. The right side of the inner side of the clamping frame (22) is set as an arc surface. The top of the arc-shaped clamping block (24) is aligned with the top of the clamping frame (22), and the bottom of the arc-shaped clamping block (24) is in contact with the bottom of the inner side of the clamping frame (22).

4. The cylinder rounding device for pressure vessel manufacturing as described in claim 3, characterized in that, Each of the three sets of inner supports (20) has a connecting plate (25) fixedly connected to the middle of both sides. Each connecting plate (25) has a guide rod (26) fixedly connected to the inner side. Each of the three sets of guide frames (18) has a guide sleeve plate (27) fixedly connected to the outer side of both sides. The guide rod (26) is slidably installed on the guide sleeve plate (27).

5. The cylinder rounding device for pressure vessel manufacturing as described in claim 4, characterized in that, The outer side of each of the three sets of L-shaped brackets (5) is fixedly connected to the top of the workbench (1) with a reinforcing plate (28).

6. The cylinder rounding device for pressure vessel manufacturing as described in claim 5, characterized in that, The bottom of each of the four sets of outriggers (2) is fixedly connected with an anti-slip rubber pad (29).

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