Steel plate turning-over assisting device and method

Abstract

The invention relates to the technical field of ship building, and discloses a steel plate turnover auxiliary device and method.The steel plate turnover auxiliary device comprises a base, a driving mechanism, a platform plate and an anti-fracture assembly, the platform plate is rotationally assembled on the base around the horizontal axis, the driving mechanism is in transmission connection with the platform plate, and the driving mechanism is used for driving the platform plate to rotate on the base; the anti-fracture assembly comprises a connecting rod, clamping seats and positioning pieces, the connecting rod is perpendicular to the rotating axis of the platform plate, the two clamping seats are arranged at intervals, the clamping seats are movably assembled on the connecting rod in the axial direction of the connecting rod, the clamping seats are provided with the positioning pieces, and the positioning pieces are in fastening fit with the connecting rod to position the clamping seats. When a steel plate is lifted and lowered, the platform plate can support the steel plate, bending deformation of the steel plate in the lifting and lowering process is reduced, and the subsequent correction procedure is reduced; the two clamping seats can clamp the steel plate in the vertical direction, the butt joint position of the steel plate is prevented from being cracked or broken, and the safety coefficient of the steel plate during turning over is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of shipbuilding, and in particular to a steel plate turning auxiliary device and method. Background Art

[0002] Steel plate welding is a critical step in the construction of ships and steel structures, requiring a significant number of plates to be welded. Typically, double-sided submerged arc welding lines are used to weld straight plates. After welding one side of a plate, the plate must be flipped over to weld the other side.

[0003] In the prior art, when welding steel plates, the panel welding is carried out on a flat ground or platform. After the welding is completed, a plurality of lifting ears are welded on the edge of the panel to prepare for lifting and turning over the panel. At the same time, in order to prevent the panel seam perpendicular to the lifting direction from cracking or breaking during the lifting process, a plurality of temporary reinforcement plates are welded on the front of the joint; then the panel is lifted by a crane, turned 180 degrees and then put back to its original position to complete the turning action; after the panel is turned over and placed, the welding of all the reverse welds of the panel seam is completed, and finally, after the panel is turned over again, the temporary reinforcement plate of the front weld is removed, and the scar left by the temporary reinforcement plate is processed.

[0004] The above-mentioned steel plate welding process requires two turning-over actions on the panel parts, and the turning-over action is only performed by a crane. During the lifting and lowering process of the panel parts, the panel parts themselves are prone to bending and deformation under the action of their own gravity and the tension of the crane. The workload of correcting the panel parts is large. At the same time, after the panel parts are deformed, the joints are prone to cracking or breaking, the safety factor is low, and the welding of temporary reinforcement plates and scar treatment are labor-intensive, resulting in low construction efficiency. Summary of the Invention

[0005] The purpose of the present invention is to provide a steel plate turning auxiliary device to solve the problems of large workload and low safety factor when turning steel plates in the prior art; the present invention also provides a steel plate turning method using the steel plate turning auxiliary device.

[0006] To achieve the above-mentioned object, the present invention provides a steel plate turning auxiliary device, comprising a base, a driving mechanism, a platform plate, and an anti-fracture assembly, wherein the platform plate has a support surface for supporting the steel plate, the platform plate is rotatably assembled on the base around a horizontal axis, the driving mechanism is in transmission connection with the platform plate, and the driving mechanism is used to drive the platform plate to rotate on the base;

[0007] The anti-fracture assembly includes a connecting rod, a clamping seat and a positioning piece. The connecting rod is perpendicular to the rotation axis of the platform plate. Two clamping seats are arranged at intervals. Each clamping seat is movably assembled on the connecting rod along the axial direction of the connecting rod. Each clamping seat is equipped with the positioning piece. The positioning piece is tightly matched with the connecting rod to position the clamping seat. The two clamping seats move along the connecting rod to clamp and fix the steel plate.

[0008] Optionally, the clamping seat includes a sliding box and a clamping plate fixedly connected to the sliding box, the sliding box is mounted on the connecting rod, the positioning piece is provided on the sliding box, the clamping plate is provided at one end of the two clamping seats close to each other, and the clamping plate is threadedly assembled with a clamping piece for pressing the steel plate toward the connecting rod.

[0009] Optionally, the clamping plate includes a vertical plate and a flat plate fixedly connected to the vertical plate, the vertical plate is fixedly connected to the sliding box, and the clamping member is a clamping bolt threadedly connected to the flat plate.

[0010] Optionally, a limiting rod is further included, and a limiting hole is provided at one end of the platform plate. A plurality of limiting holes are arranged at intervals along a direction parallel to the rotation axis of the platform plate. The limiting rod is inserted into the limiting hole, and the limiting rod has a limiting section located outside the limiting hole.

[0011] Optionally, a limiting plate is further provided on the limiting section, and the limiting plate is provided on a side of the limiting section away from the rotation axis of the platform plate, and the limiting plate cooperates with a hole edge stopper of the limiting hole.

[0012] Optionally, a plurality of the limiting holes are arranged at intervals along a direction perpendicular to the rotation axis of the platform plate.

[0013] Optionally, a baffle is further included, which is fixedly connected to the platform plate, parallel to the rotation axis of the platform plate, and an elastic baffle is provided on one side of the baffle close to the rotation axis of the platform plate.

[0014] Optionally, a foundation pit is further included, and the base and the driving mechanism are both fixedly supported in the foundation pit.

[0015] The present invention also provides a steel plate turning method, comprising the following steps:

[0016] S1, determine the size of the steel plate to be welded, insert the limit rod into the limit hole of the platform plate, and set multiple anti-fracture components on the platform plate at intervals;

[0017] S2, placing the steel plates to be spliced ​​on the platform plate in sequence, wherein the steel plates are supported on the connecting rods of the anti-fracture assembly, and welding the front faces of the butt joints of the steel plates to form spliced ​​panels;

[0018] S3, the two clamping seats move toward each other on the connecting rod and clamp the panel, and the positioning piece fixes the clamping seats and the connecting rod;

[0019] S4, use the lifting device to lift the panel, and at the same time, the driving mechanism drives the platform plate to rotate on the base. During the lifting process, the panel and the platform plate always maintain contact;

[0020] S5, the driving mechanism drives the platform plate to rotate to the maximum inclination angle and then stops the operation. The lifting device continues to lift the panel until the panel and the anti-fracture assembly are separated from the platform plate. The panel rotates 180 degrees around the vertical axis in the air;

[0021] S6, the lifting device lowers the panel to the platform plate, so that the inclination angle of the panel is the same as that of the platform plate, ensuring that the panel is supported on the platform plate;

[0022] S7, the driving mechanism drives the platform plate to rotate in the opposite direction to a horizontal state, and at the same time the lifting device lowers the panel to a horizontal state synchronously, completing the panel turning operation.

[0023] Optionally, when each steel plate is hoisted on the platform plate, the butt joints of the steel plates and the limiting rods are staggered with each other.

[0024] The steel plate turning-over auxiliary device and method according to the embodiment of the present invention have the following beneficial effects compared with the prior art: the driving mechanism can drive the platform plate to rotate around the horizontal axis on the base, and when lifting and lowering the steel plate, the platform plate can rotate synchronously with the steel plate to support the steel plate, thereby reducing the bending deformation of the steel plate during the lifting and lowering process and reducing the subsequent correction process; at the same time, an anti-fracture component is provided on the platform plate, and the steel plate is supported on the connecting rod when placed on the platform plate, and the clamping seat moves on the connecting rod to clamp and fix the steel plate, and then the clamping seat is positioned by the positioning piece, and when the steel plate is completely lifted and turned over, the two clamping seats can clamp the steel plate in the vertical direction, and the steel plates are clamped to each other under the action of the clamping force, thereby avoiding cracking or breaking at the butt joint position of the steel plate, improving the safety factor when the steel plate is turned over, omitting the welding of temporary reinforcement plates and scar treatment operations, reducing workload, and improving the construction efficiency of steel plate turning over. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the steel plate turning auxiliary device of the present invention;

[0026] Figure 2 yes Figure 1 A schematic structural diagram of a steel plate turning auxiliary device after omitting the platform plate;

[0027] Figure 3 yes Figure 1 A schematic structural diagram of the platform plate of the steel plate turning auxiliary device;

[0028] Figure 4 yes Figure 1 A schematic structural diagram of a limit rod of a steel plate turning auxiliary device;

[0029] Figure 5 Schematic diagram of the connection between the upper hinge ear plate and the lower hinge ear plate of the steel plate turning auxiliary device of the present invention;

[0030] Figure 6 yes Figure 1 A schematic structural diagram of a limit rod of a steel plate turning auxiliary device;

[0031] Figure 7 This is a schematic diagram of the steel plate turning auxiliary device of the present invention after the steel plate is placed;

[0032] Figure 8 It is a schematic diagram of the state of the platform plate of the steel plate turning auxiliary device of the present invention when it rotates.

[0033] In the figure, 1. base, 2. driving mechanism, 3. platform plate, 31. supporting surface, 32. limiting hole, 33. baffle, 34. elastic rubber strip, 4. anti-fracture component, 41. connecting rod, 42. clamping seat, 421. sliding box, 422. splint, 4221. vertical plate, 4222. flat plate, 43. positioning part, 5. upper hinge ear plate, 6. lower hinge ear plate, 7. hinge shaft, 8. tightening bolt, 9. limiting rod, 91. limiting section, 92. limiting plate, 10. foundation pit. DETAILED DESCRIPTION

[0034] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0035] A preferred embodiment of a steel plate turning auxiliary device of the present invention is as follows Figures 1 to 8 As shown, the steel plate turning auxiliary device includes a base 1, a driving mechanism 2, a platform plate 3 and an anti-fracture component 4. The base 1 and the driving mechanism 2 are used to be arranged on a supporting foundation, which can be the ground, a welding platform, etc. The platform plate 3 is used to place the steel plate to be welded.

[0036] The platform plate 3 has a support surface 31 for supporting the steel plate. The steel plate is arranged on the support surface 31 of the platform plate 3. In this embodiment, the top surface of the platform plate 3 serves as the support surface 31. The platform plate 3 is assembled on the base 1 so as to rotate about a horizontal axis. The drive mechanism 2 is in transmission connection with the platform plate 3. The drive mechanism 2 is used to drive the platform plate 3 to rotate on the base 1 to adjust the angle between the platform plate 3 and the horizontal plane so that the platform plate 3 supports the steel plate.

[0037] In this embodiment, the platform plate 3 is a rectangular plate. A transverse structure and a longitudinal structure are fixedly connected to the bottom of the platform plate 3. The transverse and longitudinal structures are perpendicular to each other and fixedly connected, which can improve the rigidity and stability of the platform plate 3. The bottom of the platform plate 3 is fixedly connected to an upper hinge lug plate 5. There are multiple upper hinge lug plates 5 arranged at intervals.

[0038] In this embodiment, the base 1 is a cylindrical structure. Multiple bases 1 are spaced apart along the rotation axis of the platform plate 3, and each base 1 has the same height. A lower hinge lug 6 is fixed to the top of each base 1. The upper hinge lug 5 and the lower hinge lug 6 are connected by a hinge shaft 7, which passes horizontally through the center holes of the upper hinge lug 5 and the lower hinge lug 6 to ensure that the platform plate 3 can rotate on the base 1 around the hinge shaft 7.

[0039] In this embodiment, the drive mechanism 2 is a hydraulic cylinder. Multiple drive mechanisms 2 are spaced apart along the rotation axis of the platform plate 3. Each drive mechanism 2 has the same height and is spaced apart from the base 1. A lower hinge lug 6 is fixedly connected to the piston rod of the hydraulic cylinder. An upper hinge lug 5 is provided at the top of the platform plate 3 at a position corresponding to the drive mechanism 2. The upper hinge lug 5 and the lower hinge lug 6 are connected by a hinge shaft 7, which extends horizontally through the center holes of the upper hinge lug 5 and the lower hinge lug 6. The hydraulic cylinder's piston rod drives the platform plate 3 to rotate when extended or retracted. The hydraulic cylinders are connected via a control circuit, allowing for synchronous remote control to achieve synchronous lifting and lowering movements.

[0040] The anti-fracture assembly 4 includes a connecting rod 41, a clamping seat 42, and a positioning member 43. The connecting rod 41 is arranged on the platform plate 3 and is perpendicular to the rotation axis of the platform plate 3. Multiple clamping seats 42 are arranged at intervals, and two clamping seats 42 are movably assembled on the connecting rod 41 along the axial direction of the connecting rod 41. The steel plate is accommodated between the two clamping seats 42. The two clamping seats 42 can clamp and fix the steel plate when they move on the connecting rod 41.

[0041] Each clamping seat 42 is equipped with a positioning piece 43. After the positioning piece 43 is tightened and matched with the connecting rod 41, the clamping seat 42 can be positioned to prevent the clamping seat 42 from moving on the connecting rod 41. At the same time, it also ensures that the two clamping seats 42 clamp and fix the steel plates, exerting force on the steel plates to ensure that the joints of the steel plates are tightly connected, and to avoid the welds at the joints from breaking under the action of the gravity of the steel plates.

[0042] In this embodiment, connecting rod 41 is a flat iron plate, and clamping base 42 is guided and assembled with connecting rod 41. Positioning member 43 is a compression bolt 8 threadedly mounted on clamping base 42. Two compression bolts 8 are provided at intervals. After clamping base 42 clamps the steel plate, compression bolts 8 can be pressed and fixed to connecting rod 41, thereby preventing movement of clamping base 42. In other embodiments, positioning member 43 can also be a cam, which can compress connecting rod 41 when rotated.

[0043] The driving mechanism 2 of the steel plate turning over auxiliary device can drive the platform plate 3 to rotate around the horizontal axis on the base 1. When lifting and lowering the steel plate, the platform plate 3 can rotate synchronously with the steel plate to support the steel plate, reduce the bending deformation of the steel plate during lifting and lowering, and reduce the subsequent correction process; at the same time, an anti-fracture component 4 is set on the platform plate 3. When the steel plate is placed on the platform plate 3, it is supported on the connecting rod 41. The clamping seat 42 moves on the connecting rod 41 to clamp and fix the steel plate, and then the clamping seat 42 is positioned by the positioning piece 43. When the steel plate is completely lifted and turned over, the two clamping seats 42 can clamp the steel plate in the vertical direction. Under the action of the clamping force, the steel plates are clamped to each other to avoid cracking or breaking at the butt joint of the steel plate, thereby improving the safety factor when the steel plate is turned over, omitting the welding of temporary reinforcement plates and scar treatment operations, reducing workload, and improving the construction efficiency of steel plate turning over.

[0044] In some embodiments, the clamping seat 42 includes a sliding box 421 and a splint 422 fixedly connected to the sliding box 421. The sliding box 421 is mounted on the connecting rod 41. The positioning member 43 is provided on the sliding box 421. The splint 422 is provided at one end where the two clamping seats 42 are close to each other. A clamping member is threadedly assembled on the splint 422 for pressing the steel plate toward the connecting rod 41.

[0045] The sliding box 421 is sleeved on the connecting rod 41. The sleeve connection ensures the stability of the sliding box 421 when it moves on the connecting rod 41. The sliding box 421 is fixed with a clamping plate 422. When the clamping seat 42 clamps the steel plate, the pressing member can press the steel plate, so that the clamping seat 42 and the steel plate are tightly connected to form a whole, ensuring that the clamping seat 42 stably clamps the steel plate.

[0046] In some embodiments, the clamping plate 422 includes a vertical plate 4221 and a flat plate 4222 fixedly connected to the vertical plate 4221 . The vertical plate 4221 is fixedly connected to the sliding box 421 . The clamping member is a clamping bolt 8 threadedly connected to the flat plate 4222 .

[0047] Clamping plate 422 is formed by vertical plate 4221 and flat plate 4222. In this embodiment, vertical plate 4221 and flat plate 4222 are L-shaped, simplifying the specific clamping method. Compression bolt 8 forms a compression member, which, when rotated, presses against the steel plate, simplifying the structure of the compression member. In other embodiments, the compression member may also adopt a cam structure, which, when rotated, compresses the steel plate.

[0048] In some embodiments, a limiting rod 9 is also included. A limiting hole 32 is provided at one end of the platform plate 3. Multiple limiting holes 32 are arranged at intervals along a direction parallel to the rotation axis of the platform plate 3. The limiting rod 9 is inserted into the limiting hole 32. The limiting rod 9 has a limiting section 91 located outside the limiting hole 32.

[0049] A limiting hole 32 is provided at one end of the platform plate 3. When the limiting rod 9 is inserted into the limiting hole 32, the limiting section 91 of the limiting rod 9 can cooperate with the steel plate stopper to prevent the steel plate from sliding up and down on the platform plate 3. A plurality of limiting rods 9 are respectively inserted into the limiting holes 32. The plurality of limiting rods 9 cooperate with each other to enhance the stopping effect on the steel plate.

[0050] In some embodiments, a limiting plate 92 is further provided on the limiting section 91 . The limiting plate 92 is provided on a side of the limiting section 91 away from the rotation axis of the platform plate 3 . The limiting plate 92 cooperates with the edge stop of the limiting hole 32 .

[0051] The limiting plate 92 cooperates with the stopper along the edge of the limiting hole 32 to ensure that the limiting plate 92 does not completely sink into the limiting hole 32 and to ensure that the limiting section 91 is located outside the limiting hole 32. In addition, the limiting plate 92 is located on the side of the limiting section 91 away from the rotation axis of the platform plate 3. When the limiting section 91 cooperates with the steel plate stopper, the steel plate does not contact the limiting plate 92, thereby facilitating contact between the steel plate and the limiting section 91.

[0052] In some embodiments, a plurality of limiting holes 32 are arranged at intervals along a direction perpendicular to the rotation axis of the platform plate 3 .

[0053] A plurality of limiting holes 32 are arranged at intervals along a direction perpendicular to the rotation axis of the platform plate 3 . When the size of the steel plate changes, causing the position of the steel plate on the platform plate 3 to change, a suitable limiting hole 32 can be selected to insert the limiting rod 9 .

[0054] In some embodiments, a baffle 33 is further included. The baffle 33 is fixedly connected to the platform plate 3 and is parallel to the rotation axis of the platform plate 3. An elastic baffle strip is also provided on one side of the baffle 33 close to the rotation axis of the platform plate 3.

[0055] A baffle 33 is provided on the platform plate 3. Both the baffle 33 and the limiting hole 32 are located at the lower end of the platform plate 3. The baffle 33 cooperates with the steel plate stop to prevent the steel plate from accidentally detaching from the platform plate 3 during rotation, ensuring safety. An elastic baffle strip is also provided on the baffle 33 to reduce damage caused by collisions between the steel plate and the baffle 33. In this embodiment, the elastic baffle strip is a rubber strip.

[0056] In some embodiments, a foundation pit 10 is further included, and the base 1 and the driving mechanism 2 are both fixedly supported in the foundation pit 10 .

[0057] The base 1 and drive mechanism 2 are both fixedly supported within the foundation pit 10, preventing the platform plate 3 from being positioned too high, facilitating the use of the steel plate turning assist device within the workshop. In this embodiment, a three-step platform is provided within the foundation pit 10, with the base 1 and drive mechanism 2 positioned on the middle step. The lowest step clears the platform plate 3, providing space for its rotation.

[0058] An embodiment of a steel plate turning method of the present invention, using a steel plate turning auxiliary device according to any of the above technical solutions, comprises the following steps:

[0059] S1, determine the size of the steel plate to be welded, insert the limiting rod 9 into the limiting hole 32 of the platform plate 3, and arrange multiple anti-fracture components 4 on the platform plate 3 at intervals.

[0060] S2, placing the steel plates to be spliced ​​onto the platform plate 3 in sequence, wherein the steel plates are supported on the connecting rods 41 of the anti-fracture assembly 4, and welding the front faces of the joints of the steel plates to form spliced ​​panels.

[0061] S3, the two clamping seats 42 move toward each other on the connecting rod 41 and clamp the panel pieces, and the positioning piece 43 fixedly connects the clamping seats 42 and the connecting rod 41.

[0062] S4, use a sling to lift the panel, and at the same time, the driving mechanism 2 drives the platform plate 3 to rotate on the base 1. During the lifting process, the panel and the platform plate 3 always keep in contact.

[0063] S5, the driving mechanism 2 drives the platform plate 3 to rotate to the maximum inclination angle and then stops operating. The hoist continues to lift the panel until the panel and the anti-fracture component 4 are separated from the platform plate 3, and the panel rotates 180 degrees around the vertical axis in the air.

[0064] S6, the sling lowers the panel piece onto the platform plate 3 so that the inclination angle of the panel piece is the same as that of the platform plate 3, ensuring that the panel piece is supported on the platform plate 3.

[0065] S7, the driving mechanism 2 drives the platform plate 3 to rotate in the opposite direction to a horizontal state, and at the same time the lifting device synchronously lowers the panel to a horizontal state, completing the panel turning operation.

[0066] In step S1 , when inserting the limiting rod 9 , ensure that the limiting plate 92 on the limiting section 91 is located on a side away from the rotation axis of the platform plate 3 to avoid contact between the steel plate and the limiting plate 92 .

[0067] In step S2, each steel plate is placed on the platform plate 3 by hoisting, and the butt joints of all steel plates are leveled and tack welded to secure each steel plate. When welding the steel plates, arc starter plates and arc extinguisher plates are installed at the ends of the butt joints of the steel plates, and the front welding construction of all the butt joints of the steel plates is completed in sequence using submerged arc automatic welding.

[0068] In step S3, after the butt welding of the steel plate is completed, the sliding box 421 of the clamping seat 42 moves on the connecting rod 41, and the clamping plates 422 of the two clamping seats 42 clamp the fixed steel plate from both ends, and the tightening bolts 8 are rotated to tighten the steel plate to fix the steel plate and the clamping seat 42, and then the sliding box 421 and the connecting rod 41 are fastened and connected by the positioning piece 43 to prevent the clamping seat 42 from moving on the connecting rod 41.

[0069] In step S4, when lifting the panel, a lifting lug is installed on the side of the panel away from the limiting hole 32, and then a lifting sling tool is installed. The lifting sling tool includes a shackle, a wire rope, a lifting beam, etc. When lifting the panel, the driving mechanism 2 and the sling work synchronously, so that the platform plate 3 tilts at a certain speed. During the lifting process, the limiting rod 9 is always in contact with the panel to prevent the panel from sliding down. The panel always maintains contact with the platform plate 3 so that the platform plate 3 can support the steel plate, avoiding cracking, breaking and deformation of the steel plate panel during the lifting process. In addition, the lifting wire rope is always in a certain tension state to prevent the limiting rod 9 from being subjected to excessive force, thereby ensuring safety.

[0070] In step S5, the platform 3 rotates until it reaches an angle of 70-80 degrees relative to the horizontal. At this point, the platform 3 stops rotating and remains in this position, i.e., the platform 3's maximum inclination angle is 70-80 degrees. The lifting device lifts the panel and the anti-fracture assembly 4 off the platform 3. At this point, the panel is fully in a numerical state, facilitating its rotation. In this embodiment, the lifting device adjusts the panel to a suitable position before rotating it, ensuring that the panel does not collide with the platform 3.

[0071] In step S6, the panel is rotated 180 degrees and then lowered onto the platform board 3. At this time, the contact surface between the panel and the platform board 3 is the reverse side of the panel. When the panel is supported on the platform board 3, the bottom end of the panel contacts the limit rod 9 on the platform board 3, changing the state of the sling, so that the panel can be tilted and supported on the platform board 3, ensuring that the panel is in full contact with the support surface 31 of the platform board 3. At this time, the sling still maintains a certain pulling force on the steel plate to prevent the limit rod 9 from being overstressed.

[0072] In step S7, the lifting device is synchronized with the platform plate 3 when it is rotated to the horizontal position, ensuring that the panel is in full contact with the platform plate 3 and does not separate, thus preventing the panel from deforming during the lowering process. During this process, the lower end of the panel is always in contact with the limit rod 9 to prevent it from sliding down. The lifting device always maintains a pulling force on the steel plate, which can reduce the force on the limit rod 9 and prevent skewed lifting.

[0073] In some embodiments, when each steel plate is hoisted on the platform plate 3 , the butt joints of the steel plates and the limiting rods 9 are staggered with each other.

[0074] The butt joint of the steel plate and the limiting rod 9 are staggered with each other, which makes it convenient to install the arc starting plate and the arc extinguishing plate at the end of the butt joint, and avoids interference between the arc starting plate, the arc extinguishing plate and the limiting rod 9.

[0075] In summary, the embodiment of the present invention provides a steel plate turning over auxiliary device and method, whose driving mechanism can drive the platform plate to rotate around the horizontal axis on the base. When lifting and lowering the steel plate, the platform plate can rotate synchronously with the steel plate to support the steel plate, reduce the bending deformation of the steel plate during the lifting and lowering process, and reduce the subsequent correction process; at the same time, an anti-fracture component is set on the platform plate, and the steel plate is supported on the connecting rod when placed on the platform plate. The clamping seat moves on the connecting rod to clamp and fix the steel plate, and then the clamping seat is positioned by the positioning piece. When the steel plate is completely lifted and turned over, the two clamping seats can clamp the steel plate in the vertical direction. Under the action of the clamping force, the steel plates are clamped to each other to avoid cracking or breaking at the butt joint position of the steel plate, thereby improving the safety factor when the steel plate is turned over, omitting the welding of temporary reinforcement plates and scar treatment operations, reducing workload, and improving the construction efficiency of steel plate turning over.

[0076] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A steel plate turning auxiliary device, characterized in that: The invention comprises a base (1), a driving mechanism (2), a platform plate (3) and an anti-fracture assembly (4); the platform plate (3) has a supporting surface (31) for supporting a steel plate; the platform plate (3) is assembled on the base (1) by rotating around a horizontal axis; the driving mechanism (2) is in transmission connection with the platform plate (3); the driving mechanism (2) is used to drive the platform plate (3) to rotate on the base (1); The anti-fracture assembly (4) includes a connecting rod (41), a clamping seat (42) and a positioning member (43), wherein the connecting rod (41) is perpendicular to the rotation axis of the platform plate (3), and two clamping seats (42) are arranged at intervals, and each clamping seat (42) is assembled on the connecting rod (41) along the axial direction of the connecting rod (41), and each clamping seat (42) is equipped with the positioning member (43), and the positioning member (43) is tightly matched with the connecting rod (41) to position the clamping seat (42), and the two clamping seats (42) move along the connecting rod (41) to clamp and fix the steel plate.

2. The steel plate turning auxiliary device according to claim 1, characterized in that: The clamping seat (42) includes a sliding box (421) and a clamping plate (422) fixedly connected to the sliding box (421), the sliding box (421) is mounted on the connecting rod (41), the positioning member (43) is provided on the sliding box (421), the clamping plate (422) is provided at one end of the two clamping seats (42) close to each other, and a clamping member for pressing the steel plate toward the connecting rod (41) is threadedly assembled on the clamping plate (422).

3. The steel plate turning auxiliary device according to claim 2, characterized in that: The clamping plate (422) includes a vertical plate (4221) and a flat plate (4222) fixedly connected to the vertical plate (4221), the vertical plate (4221) is fixedly connected to the sliding box (421), and the clamping member is a clamping bolt (8) threadedly connected to the flat plate (4222).

4. The steel plate turning auxiliary device according to any one of claims 1 to 3, characterized in that: The platform plate (3) further comprises a limiting rod (9), one end of which is provided with a limiting hole (32), a plurality of limiting holes (32) are arranged at intervals in a direction parallel to the rotation axis of the platform plate (3), the limiting rod (9) is inserted into the limiting hole (32), and the limiting rod (9) has a limiting section (91) located outside the limiting hole (32).

5. The steel plate turning auxiliary device according to claim 4, characterized in that: The limiting section (91) is also provided with a limiting plate (92), which is provided on a side of the limiting section (91) away from the rotation axis of the platform plate (3), and the limiting plate (92) cooperates with the hole edge of the limiting hole (32) to stop.

6. The steel plate turning auxiliary device according to claim 4, characterized in that: A plurality of the limiting holes (32) are arranged at intervals along a direction perpendicular to the rotation axis of the platform plate (3).

7. The steel plate turning auxiliary device according to any one of claims 1 to 3, characterized in that: It also includes a baffle (33), which is fixedly connected to the platform plate (3), parallel to the rotation axis of the platform plate (3), and an elastic baffle is provided on the side of the baffle (33) close to the rotation axis of the platform plate (3).

8. The steel plate turning auxiliary device according to any one of claims 1 to 3, characterized in that: It also includes a foundation pit (10), in which the base (1) and the driving mechanism (2) are both fixedly supported.

9. A method for turning over a steel plate, characterized in that: The steel plate turning auxiliary device according to any one of claims 1 to 8 comprises the following steps: S1, determine the size of the steel plate to be welded, insert the limiting rod (9) into the limiting hole (32) of the platform plate (3), and arrange multiple anti-fracture components (4) on the platform plate (3) at intervals; S2, placing the steel plates to be spliced ​​onto the platform plate (3) in sequence, wherein the steel plates are supported on the connecting rods (41) of the anti-fracture assembly (4), and welding the front faces of the butt joints of the steel plates to form spliced ​​panels; S3, the two clamping seats (42) move toward each other on the connecting rod (41) and clamp the panel pieces, and the positioning member (43) fixedly connects the clamping seats (42) and the connecting rod (41); S4, using a lifting device to lift the panel, while the driving mechanism (2) drives the platform plate (3) to rotate on the base (1), and the panel and the platform plate (3) always keep in contact during the lifting process; S5, the driving mechanism (2) drives the platform plate (3) to rotate to the maximum inclination angle and then stops the operation, the lifting device continues to lift the panel until the panel and the anti-fracture component (4) are separated from the platform plate (3), and the panel rotates 180 degrees around the vertical axis in the air; S6, the lifting device lowers the panel piece onto the platform plate (3), so that the inclination angle of the panel piece is the same as that of the platform plate (3), ensuring that the panel piece is supported on the platform plate (3); S7, the driving mechanism (2) drives the platform plate (3) to rotate in the opposite direction to a horizontal state, and at the same time, the lifting device synchronously lowers the panel to a horizontal state, completing the panel turning operation.

10. The steel plate turning method according to claim 9, characterized in that: In step S2, when each steel plate is hoisted onto the platform plate (3), the butt joints of the steel plates and the limiting rods (9) are staggered with each other.

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