A centering device for spiral tube winding

Abstract

The utility model discloses a kind of centering devices for spiral pipe coiling forming, including laser centering instrument, centering table, support table, centering plate, fixed clamp, fixed assembly and cleaning grinding ring, laser centering instrument is installed in the upside of centering table, support table is set to two, two support tables are symmetrically installed in the two sides of centering table, centering plate moves and is installed at the top of each support table, fixed clamp is set to multiple, multiple fixed clamps are all moved and set in the upside of each centering plate, multiple fixed clamps are all fixedly connected with fixed pad, can be stably clamped and fixed to two strip steel coils, two fixed assemblies are respectively installed between multiple fixed clamps, cleaning grinding ring lifting is set in the upside of centering table, two support tables are fixedly connected with support frame, support frame and centering table are fixedly connected with multiple support columns between.The centering device for spiral pipe coiling forming is convenient for reducing the influence of impurities on the edge of strip steel on centering effect.

Description

Technical Field

[0001] This utility model relates to the field of centering device technology, specifically to a centering device for spiral tube rolling forming. Background Technology

[0002] Spiral pipe rolling can be achieved by continuously rolling steel strips into spiral pipe blanks and simultaneously welding them to produce steel pipes of different specifications, which can be widely used in fields such as oil and gas transportation, municipal water supply and drainage, and steel structure support.

[0003] During the spiral tube rolling process, it is necessary to ensure that the edge of the steel strip and the axis of the tube blank always maintain a preset symmetrical relationship, while ensuring that the spiral joint is evenly aligned and without offset, so as to provide stable joint conditions for subsequent welding processes. Currently, when the spiral tube is rolled and centered, a laser alignment instrument is usually set at the steel strip shearing and welding station to detect the edge position of the front and rear steel strips in real time. The center lines of the two steel strips are aligned by mechanical adjustment. However, during alignment, the edge of the steel strip is prone to cause the laser alignment instrument to be calibrated due to impurities such as oil or oxide scale, which can easily cause the two steel strips to be offset. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a centering device for spiral tube rolling forming, thereby solving the problem mentioned in the background technology that impurities on the edge of the strip steel can easily affect the centering effect.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a centering device for spiral tube rolling and forming, comprising a laser centering instrument, a centering platform, a support platform, a centering plate, a fixing clamp, a fixing assembly, and a cleaning grinding ring;

[0008] The laser alignment instrument is installed on the upper side of the alignment platform;

[0009] The support platform is configured as two, and the two support platforms are symmetrically installed on both sides of the centering platform;

[0010] The centering plate is movably mounted on the top of each of the support platforms;

[0011] The fixing clips are configured in multiple ways, and each fixing clip is movably disposed on the upper side of each centering plate;

[0012] The fixing component is provided in two parts, and the two fixing components are respectively installed between the plurality of fixing clips;

[0013] The cleaning grinding ring is lifted and lowered on the upper side of the centering platform.

[0014] Furthermore, the fixing component includes:

[0015] Two fixed columns are provided, and the two fixed columns are respectively movably installed on the top of each centering plate;

[0016] A fixing box, which is fixedly connected to the top of each of the fixing columns;

[0017] An electric motor, wherein the electric motor is installed in each of the fixed boxes;

[0018] The main gear is fixedly connected to the output end of each of the motors;

[0019] The fixing rod is provided in two parts, both of which are movably mounted on each fixing box, and the fixing box is provided with a limiting port for the movement of the fixing rod;

[0020] A double-ended screw, wherein the double-ended screw is threaded between two adjacent fixed rods;

[0021] Driven wheel, the driven wheel is fixedly connected to each of the double-ended screws, and the main gear meshes with the driven wheel;

[0022] A fixing frame is fixedly connected between each of the fixing rods and the adjacent fixing clamp.

[0023] Furthermore, a lifting assembly is provided between the cleaning grinding ring and the centering platform, the lifting assembly comprising:

[0024] Mounting frame, which is fixedly connected to the top of the centering platform, and the laser centering instrument is mounted on the mounting frame;

[0025] The first electric cylinder is mounted on the mounting bracket;

[0026] A lifting frame is fixedly connected between the output end of the first electric cylinder and the cleaning grinding ring;

[0027] The sliding rods are configured in pairs and are symmetrically connected to both sides of the lifting frame. The mounting frame is provided with sliding grooves for the sliding rods to slide.

[0028] Furthermore, a second electric cylinder is installed at the top of the support platform, and a movable plate is fixedly connected between the output end of the second electric cylinder and the centering plate. A movable block is fixedly connected to the bottom end of the centering plate, and a movable groove for the movable block to slide is provided on the support platform.

[0029] Furthermore, a third electric cylinder is installed at the top of each centering plate. The output end of the third electric cylinder is fixedly connected to the fixed column, and a sliding block is fixedly connected to the bottom end of the fixed column. A sliding groove is provided on the centering plate for the sliding block to slide.

[0030] Furthermore, a protective door is detachably connected to one side of the fixed box, and the protective door is threadedly connected to the fixed box by two connecting screws.

[0031] Furthermore, a support frame is fixedly connected between the two support platforms, and multiple support columns are fixedly connected between the support frame and the centering platform.

[0032] (III) Beneficial Effects

[0033] Compared with the prior art, the present invention provides a centering device for spiral tube rolling forming, which has the following beneficial effects:

[0034] 1. In this utility model, the two centering plates and two fixing components facilitate the movement of multiple fixing clamps, so as to stably clamp two strips of different specifications through multiple fixing clamps, thereby facilitating the stable forming and centering of two strips of different specifications.

[0035] 2. In this utility model, the cooperation between the middle platform and the lifting component facilitates the lifting and lowering of the cleaning grinding ring, so as to facilitate the grinding and cleaning of the two strip edges, thereby reducing the impact of impurities on the strip edges on the centering effect. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the overall structure of this application;

[0037] Figure 2 For this application Figure 1 A magnified schematic diagram of the partial structure at point A in the middle;

[0038] Figure 3 This is a schematic diagram of the structure of the fixing clip, fixing rod and fixing pad of this application;

[0039] Figure 4 This is a schematic diagram of the structure of the middle plate, the second electric cylinder and the moving plate in this application.

[0040] In the diagram: 1. Laser alignment instrument; 2. Alignment platform; 3. Support platform; 4. Alignment plate; 5. Fixing clamp; 6. Cleaning grinding ring; 7. Fixing column; 8. Fixing box; 9. Motor; 10. Main gear; 11. Fixing rod; 12. Double-ended screw; 13. Driven wheel; 14. Fixing frame; 15. Mounting frame; 16. First electric cylinder; 17. Lifting frame; 18. Leveling rod; 19. Second electric cylinder; 20. Moving plate; 21. Third electric cylinder; 22. Protective door; 23. Connecting screw; 24. Support frame; 25. Support column; 26. Fixing pad. Detailed Implementation

[0041] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0042] Please see Figures 1 to 4 A centering device for spiral tube winding includes a laser centering instrument 1, a centering platform 2, a support platform 3, a centering plate 4, fixing clamps 5, fixing components, and a cleaning grinding ring 6. The laser centering instrument 1 is installed on the upper side of the centering platform 2. Two support platforms 3 are symmetrically installed on both sides of the centering platform 2. The centering plate 4 is movably installed on the top of each support platform 3. Multiple fixing clamps 5 are movably installed on the upper side of each centering plate 4. Fixing pads 26 are fixedly connected to each of the multiple fixing clamps 5 to stably clamp and fix two steel coils. Two fixing components are installed between the multiple fixing clamps 5. The cleaning grinding ring 6 is raised and lowered on the upper side of the centering platform 2. A support frame 24 is fixedly connected between the two support platforms 3. Multiple support columns 25 are fixedly connected between the support frame 24 and the centering platform 2 to stably support the centering platform 2 and the two support platforms 3.

[0043] refer to Figure 1 as well as Figure 3The fixing assembly includes fixing posts 7, fixing boxes 8, motors 9, main gears 10, fixing rods 11, double-ended screws 12, driven wheels 13, and fixing frames 14. Two fixing posts 7 are provided, each movably mounted on the top of one centering plate 4. The fixing boxes 8 are fixedly connected to the top of each fixing post 7. Motors 9 are installed inside each fixing box 8. The main gears 10 are fixedly connected to the output end of each motor 9. Two fixing rods 11 are provided, each movably mounted through each fixing box 8. The upper part has a limiting port for the movement of the fixed rod 11. The double-ended screw 12 is threaded between two adjacent fixed rods 11. The two sides of the double-ended screw 12 are respectively provided with threads in opposite directions. The initial positions of the two fixed rods 11 on the double-ended screw 12 are symmetrical. The driven wheel 13 is fixedly connected to each double-ended screw 12, and the main gear 10 meshes with the driven wheel 13. The motor 9 is set to drive the adjacent double-ended screw 12 to perform forward and reverse rotation. The fixing frame 14 is fixedly connected between each fixed rod 11 and the adjacent fixing clamp 5.

[0044] When the motor 9 is started, it drives the main gear 10 to rotate. The main gear 10, through meshing with the driven wheel 13, drives the double-headed screw 12 to rotate, so that the two adjacent fixed rods 11 can move towards each other on the fixed box 8. At the same time, the two fixed rods 11 and the two fixed brackets 14 drive the two adjacent fixed clamps 5 to move towards each other, so that the two adjacent fixed clamps 5 can stably contact and clamp one side of the strip coil (the fixed clamps 5 and the fixed pads 26 are made of elastic material and can fit against the surface of the strip coil under pressure). After the two strip coils are stably clamped by multiple fixed clamps 5 and multiple fixed pads 26, the stability of the alignment of the two strip coils is increased.

[0045] refer to Figure 1 A lifting assembly is provided between the cleaning grinding ring 6 and the centering platform 2. The lifting assembly includes a mounting frame 15, a first electric cylinder 16, a lifting frame 17, and a leveling rod 18. The mounting frame 15 is fixedly connected to the top of the centering platform 2. The laser centering instrument 1 is mounted on the mounting frame 15. The first electric cylinder 16 is mounted on the mounting frame 15. The lifting frame 17 is fixedly connected between the output end of the first electric cylinder 16 and the cleaning grinding ring 6. There are two leveling rods 18, which are symmetrically connected on both sides of the lifting frame 17. The mounting frame 15 is provided with leveling grooves for the leveling rods 18 to slide. When the lifting frame 17 is raised or lowered, the two leveling rods 18 will move in the two leveling grooves respectively, which improves the stability of the lifting frame 17 when it is raised or lowered.

[0046] When the first electric cylinder 16 is started, the lifting frame 17 drives the cleaning grinding ring 6 to move up and down. This allows the cleaning grinding ring 6 to grind and clean the edges of the two steel coils, thereby reducing the impact of oil stains, oxide scale and other impurities on the centering effect.

[0047] refer to Figure 1 as well as Figure 4 The top of the support platform 3 is equipped with a second electric cylinder 19. The output end of the second electric cylinder 19 is fixedly connected to the centering plate 4 with a moving plate 20. The laser centering instrument 1 is electrically connected to the two second electric cylinders 19 through a sensor. It can send an electrical signal to start the two second electric cylinders 19 respectively. The bottom end of the centering plate 4 is fixedly connected with a moving block. The support platform 3 is provided with a moving groove for the moving block to slide. When the moving block moves in the moving groove, it increases the stability of the centering plate 4 moving on the support platform 3.

[0048] When the second electric cylinder 19 is started, the moving plate 20 moves the centering plate 4, which in turn moves the two fixed columns 7 and the two fixed boxes 8, thereby moving the multiple fixed clamps 5. This allows the multiple fixed clamps 5 to move the strip coil, thus centering the strip coil.

[0049] refer to Figure 1 Each centering plate 4 is equipped with a third electric cylinder 21 at its top. The output end of the third electric cylinder 21 is fixedly connected to the fixed column 7, and a sliding block is fixedly connected to the bottom end of the fixed column 7. A sliding groove is provided on the centering plate 4 for the sliding block to slide. When the fixed column 7 moves, the sliding block will move in the sliding groove, which increases the stability of the fixed column 7 sliding on the centering plate 4.

[0050] When the third electric cylinder 21 is started, the two adjacent fixed columns 7 move towards each other, which can cause the two fixed boxes 8 and multiple fixed rods 11 to drive multiple fixed frames 14 and multiple fixed clamps 5 to move smoothly, thereby enabling the multiple fixed clamps 5 to stably clamp and fix the two steel coils.

[0051] refer to Figure 1 as well as Figure 2 A protective door 22 is detachably connected to one side of the fixed box 8, and two connecting screws 23 are threadedly connected between the protective door 22 and the fixed box 8.

[0052] The protective door 22 can be removed from the fixed box 8 to repair and replace the motor 9. At the same time, the two connecting screws 23 between the protective door 22 and the fixed box 8 can be tightened to facilitate the stable installation of the protective door 22 on the fixed box 8, thereby improving the protection of the motor 9.

[0053] In summary, the centering device for spiral tube coiling first places two steel coils between multiple fixing clamps 5, adjusts the position of the two steel coils, and then starts two third electric cylinders 21 according to the specifications of the steel coils. This causes multiple fixing columns 7 and multiple fixing boxes 8 to move multiple fixing rods 11, multiple fixing frames 14, and multiple fixing clamps 5 respectively. Then, multiple motors 9 are started, causing multiple fixing rods 11 to move through the rotation of multiple double-headed screws 12, so that multiple fixing frames 14 can move multiple fixing clamps 5 respectively, and multiple fixing pads... 26 is attached to the surface of two strip coils and fixed to the two coils. When the laser alignment instrument 1 detects that the edges of the two strip coils are not aligned, it will send an electrical signal to start the corresponding second electric cylinder 19, so that the alignment plate 4, the third electric cylinder 21, the fixing column 7, the fixing box 8, the fixing frame 14 and the fixing clamp 5 move, so that the corresponding strip coils are moved accordingly. When the edges of the two strip coils are aligned, the first electric cylinder 16 is started, so that the lifting frame 17 drives the cleaning grinding ring 6 to move back and forth to clean and grind the edges of the two strip coils, thus reducing the impact of impurities on alignment and welding effect.

[0054] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A centering device for spiral tube rolling, comprising a laser centering instrument (1), characterized in that, Also includes: For the centering platform (2), the laser alignment instrument (1) is installed on the upper side of the centering platform (2); Support platform (3), wherein two support platforms (3) are provided, and the two support platforms (3) are symmetrically installed on both sides of the centering platform (2); Center plate (4), which is movably mounted on the top of each of the support platforms (3); Fixing clips (5), wherein multiple fixing clips (5) are provided, and multiple fixing clips (5) are movably disposed on the upper side of each centering plate (4); The fixing components are configured as two, and the two fixing components are respectively installed between the plurality of fixing clips (5); The cleaning grinding ring (6) is raised and lowered on the upper side of the centering platform (2).

2. The centering device for spiral tube winding and forming according to claim 1, characterized in that, The fixing component includes: Fixed column (7), the fixed column (7) is configured as two, and the two fixed columns (7) are respectively movably installed on the top of each centering plate (4); A fixing box (8) is fixedly connected to the top of each of the fixing columns (7); Motor (9), said motor (9) being installed in each of said fixed boxes (8); A main gear (10) is fixedly connected to the output end of each of the motors (9); Fixed rod (11), the fixed rod (11) is configured as two, the two fixed rods (11) are movably disposed on each fixed box (8), and the fixed box (8) is provided with a limiting port for the fixed rod (11) to move; A double-ended screw (12) is threaded between two adjacent fixed rods (11); Driven wheel (13), the driven wheel (13) is fixedly connected to each of the double-ended screws (12), and the main gear (10) meshes with the driven wheel (13); A fixing frame (14) is fixedly connected between each of the fixing rods (11) and the adjacent fixing clamps (5).

3. The centering device for spiral tube winding and forming according to claim 2, characterized in that, A lifting assembly is provided between the cleaning grinding ring (6) and the centering platform (2), the lifting assembly comprising: Mounting bracket (15), which is fixedly connected to the top of the centering platform (2), and the laser centering instrument (1) is mounted on the mounting bracket (15); The first electric cylinder (16) is mounted on the mounting bracket (15); A lifting frame (17) is fixedly connected between the output end of the first electric cylinder (16) and the cleaning grinding ring (6); The leveling rod (18) is provided in two parts, and the two leveling rods (18) are symmetrically connected to both sides of the lifting frame (17). The mounting frame (15) is provided with leveling grooves for the leveling rods (18) to slide.

4. The centering device for spiral tube winding and forming according to claim 3, characterized in that, A second electric cylinder (19) is installed at the top of the support platform (3). A movable plate (20) is fixedly connected between the output end of the second electric cylinder (19) and the centering plate (4). A movable block is fixedly connected to the bottom end of the centering plate (4). A movable groove for the movable block to slide is provided on the support platform (3).

5. The centering device for spiral tube winding and forming according to claim 4, characterized in that, Each centering plate (4) is equipped with a third electric cylinder (21) at its top end. The output end of the third electric cylinder (21) is fixedly connected to the fixed column (7), and a sliding block is fixedly connected to the bottom end of the fixed column (7). A sliding groove is provided on the centering plate (4) for the sliding block to slide.

6. A centering device for spiral tube winding and forming according to claim 5, characterized in that, A protective door (22) is detachably connected to one side of the fixed box (8), and two connecting screws (23) are threadedly connected between the protective door (22) and the fixed box (8).

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