Straightening device for ship U-shaped steel structure machining

Abstract

A straightening device for ship U-shaped steel structure machining belongs to the technical field of ship steel structure manufacturing equipment and comprises a bottom plate, a plurality of supporting tables are fixedly mounted on the upper surface of the bottom plate, a mold table is fixedly mounted among the upper surfaces of the supporting tables, a groove is formed in the upper surface of the mold table, and a lifting frame is fixedly mounted on the upper surface of the bottom plate. A groove is formed in the mold table, the lifting frame is located above the mold table, a clamping mechanism and two side edge shaping mechanisms are installed in the lifting frame, the two side edge shaping mechanisms are located on the front side and the rear side of the mold table respectively, and a lifting mechanism is installed in the groove. When the U-shaped steel structure is placed or moved out, the power requirement of traction equipment is reduced, meanwhile, continuous friction is avoided, it is guaranteed that the outer surface of the U-shaped steel structure is prevented from being scratched, an oxide layer is prevented from falling off, and the follow-up coating process quality and the anti-corrosion performance are guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of ship steel structure manufacturing equipment, and particularly relates to a straightening device for processing ship U-shaped steel structures. Background Technique

[0002] In the field of shipbuilding, U-shaped steel structures, as core components for hull frames, bulkhead supports, and deck connections, their processing accuracy directly affects the overall structural strength and sealing performance of ships. Due to the open cross-section characteristics of U-shaped steel, processes such as welding and rolling are prone to causing uneven stress deformation on both side flanges. Therefore, during the processing process, the sides must be straightened to ensure that their geometric dimensions and mechanical properties meet the design standards.

[0003] Traditional straightening processes usually fix the U-shaped steel structure on a carrier platform for straightening work. For example, the publication number is: CN222001335U, and the patent name is a straightening device for steel structure columns and beams. During the process of placing the steel structure, the sliding friction resistance between the steel structure and the carrier platform is relatively large. Especially during the straightening process of thick-walled U-shaped steel for large ships (such as thickness ≥ 20 mm), auxiliary moving equipment such as a traction lifting tool or an auxiliary vehicle with a large power needs to be equipped, and the operation difficulty is high; secondly, sliding friction is likely to cause scratches on the steel surface and the peeling off of the oxide layer, directly affecting the quality of the subsequent painting process, resulting in a decline in anti-corrosion performance, and it is difficult to meet the requirements of high-strength sealing and long-term durability of ship structures. Therefore, a straightening device for processing ship U-shaped steel structures is specifically provided to solve the above technical problems. Summary of the Utility Model

[0004] In view of the above-mentioned disadvantages of the prior art, the purpose of the present utility model is to provide a straightening device for processing ship U-shaped steel structures, which is used to solve the problems in the prior art that the sliding friction resistance between the U-shaped steel frame and the carrier platform is large during movement, the power requirements for auxiliary moving equipment such as traction lifting tools or auxiliary vehicles are high, and the operation difficulty is high.

[0005] To achieve the above purpose, the present utility model provides the following technical solutions:

[0006] A straightening device for processing ship U-shaped steel structures includes a bottom plate and a mold table. A plurality of support platforms are fixedly installed between the upper surface of the bottom plate and the lower surface of the mold table. A groove is opened on the upper surface of the mold table. A lifting frame is fixedly installed on the upper surface of the bottom plate. The support platforms are located inside the lifting frame. The lifting frame is located above the mold table, and a clamping mechanism and two side shaping mechanisms are installed in the lifting frame. The two side shaping mechanisms are respectively located on the front and rear sides of the mold table. A U-shaped seat is fixedly installed in the groove, and a lowering motorcycle lifting mechanism is installed in the U-shaped seat.

[0007] In the above technical solution, the lowering and lifting mechanism includes an L-shaped sliding rod, a hydraulic telescopic column A, and a plurality of wheel frames. The L-shaped sliding rod is slidably arranged through the groove. The hydraulic telescopic column A is fixedly installed between the left end of the L-shaped sliding rod and the left surface of the mold table. A plurality of the wheel frames are rotatably installed in the U-shaped seat. A roller is rotatably installed in the wheel frame. A fixed rod is fixedly installed in the wheel frame. A plurality of installation grooves are equidistantly formed through the upper surface of the L-shaped sliding rod. A push-pull rod is rotatably installed in each installation groove. The push-pull rod is rotatably connected to the corresponding fixed rod.

[0008] In the above technical solution, the clamping mechanism includes a hydraulic telescopic column B fixedly installed in the lifting frame. A pressing plate is fixedly installed on the lower surface of the hydraulic telescopic column B. The pressing plate is located above the mold table.

[0009] In the above technical solution, auxiliary moving devices are installed on the upper surfaces of the left and right ends of the pressing plate. Each auxiliary moving device includes two ear blocks fixedly installed on the upper surface of the pressing plate. A V-shaped frame is rotatably installed between the two ear blocks. A driving wheel is rotatably installed at one end of the V-shaped frame away from the ear block through a connecting shaft. A servo motor is fixedly installed on the front surface of the V-shaped frame. The output end of the servo motor is fixedly connected to the front end of the connecting shaft. An arc-shaped spring and an arc-shaped telescopic rod are fixedly installed between the V-shaped frame and the pressing plate. The arc-shaped telescopic rod is located inside the arc-shaped spring.

[0010] In the above technical solution, each side shaping mechanism includes a shaping plate and two hydraulic telescopic columns C. The shaping plate is slidably installed on the upper surface of the bottom plate. The outer ends of the hydraulic telescopic columns C are fixedly connected to the inner side walls of the lifting frame, and the inner ends of the hydraulic telescopic columns C are fixedly connected to the outer surfaces of the shaping plate.

[0011] In the above technical solution, two T-shaped slide rails are fixedly installed on the upper surface of the bottom plate. Two T-shaped sliding grooves are formed on the lower surface of the shaping plate. The T-shaped slide rails are slidably connected to the T-shaped sliding grooves.

[0012] A straightening device for processing a ship U-shaped steel structure according to the present utility model has the following beneficial effects compared with the prior art:

[0013] The present utility model can set a lowering and lifting mechanism in the groove of the mold table. Without affecting the normal use of the mold table, the U-shaped steel structure can be lifted by a plurality of rollers in the lowering and lifting mechanism, so that it is separated from the contact with the upper surface of the mold table, reducing the frictional resistance. When placing or removing, the power requirement of the traction device is reduced. At the same time, continuous friction is avoided, ensuring that the outer surface of the U-shaped steel structure is not scratched and the oxide layer does not fall off, ensuring the quality of the subsequent painting process and the anti-corrosion performance.

[0014] By providing a displacement assisting device, the utility model can assist the U-shaped steel structure during lateral movement, making the lateral movement of the U-shaped steel structure more convenient and labor-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 FIG. is a schematic three-dimensional structure diagram of the utility model.

[0016] Figure 2 FIG. is a schematic front view structure diagram of the utility model.

[0017] Figure 3 FIG. is a schematic right view structure diagram of the utility model.

[0018] Figure 4 is Figure 1 an enlarged view of the partial structure at a in FIG.

[0019] Figure 5 FIG. is a schematic sectional structure diagram of the mold table of the utility model.

[0020] Figure 6 is Figure 4 an enlarged view of the partial structure at b in FIG.

[0021] Figure 7 FIG. is a schematic sectional structure diagram of the sliding rod of the utility model.

[0022] Figure 8 FIG. is a schematic sectional structure diagram of the U-shaped seat of the utility model.

[0023] Figure 9 FIG. is a schematic sectional structure diagram of the arc-shaped telescopic rod of the utility model.

[0024] Figures 1-9 In FIG., where: 1. bottom plate; 11. support platform; 12. T-shaped slide rail; 2. mold table; 21. groove; 22. U-shaped seat; 221. inner rotor bearing; 3. lifting frame; 4. clamping mechanism; 41. hydraulic telescopic column B; 42. pressing plate; 5. side shaping mechanism; 51. shaping plate; 52. hydraulic telescopic column C; 6. lowering and lifting mechanism; 61. L-shaped slide rod; 611. installation groove; 612. push-pull rod; 62. hydraulic telescopic column A; 63. wheel frame; 631. roller; 632. fixed rod; 7. displacement assisting device; 71. ear block; 72. V-shaped frame; 73. driving wheel; 74. servo motor; 75. arc-shaped spring; 76. arc-shaped telescopic rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] The front, back, left, right, top and bottom in this embodiment are described with Figure 1 as the reference plane. Please refer to Figures 1-9 , the present invention provides a technical solution:

[0027] A straightening device for processing ship U-shaped steel structures, including a bottom plate 1. A plurality of horizontally arranged support platforms 11 are fixedly installed on the upper surface of the bottom plate 1 through bolts. A mold platform 2 for placing U-shaped steel parts is fixedly installed between the upper surfaces of the plurality of support platforms 11 through bolts. The mold platform 2 is cast from cast iron and has the same size as the standard U-shaped steel parts. A hoisting frame 3 is fixedly installed on the upper surface of the bottom plate 1 through bolts. The hoisting frame 3 is located outside the mold platform 2, and a clamping mechanism 4 and two side shaping mechanisms 5 are fixedly installed inside the hoisting frame 3. The clamping mechanism 4 is located above the mold platform 2 and is used for clamping and fixing the U-shaped steel parts placed above the mold platform 2. The two side shaping mechanisms 5 are respectively located on the front and back sides of the mold platform 2 and are respectively used for pressing and correcting the front and back sides of the U-shaped steel parts placed above the mold platform 2.

[0028] A groove 21 is formed in the mold platform 2. A U-shaped seat 22 is fixedly installed in the groove 21 through bolts. A lowering and lifting mechanism 6 that can be movably received in the groove 21 is installed in the U-shaped seat 22. A plurality of inner rotor bearings 221 are symmetrically embedded and fixedly installed on the front and back inner side walls of the U-shaped seat 22;

[0029] Combined with Figure 5 , Figure 6 , Figure 7 and Figure 8As shown in the figure, the lowering and lifting mechanism 6 includes an L-shaped sliding rod 61 and a plurality of wheel brackets 63. The left and right ends of the L-shaped sliding rod 61 penetrate through the left and right surfaces of the die table 2 respectively. A hydraulic telescopic column A62 is installed between the left end of the L-shaped sliding rod 61 and the left surface of the die table 2. The left and right ends of the hydraulic telescopic column A62 are fixedly connected to the L-shaped sliding rod 61 and the die table 2 respectively by bolts. The telescopic movement of the hydraulic telescopic column A62 can drive the L-shaped sliding rod 61 to slide left and right. A plurality of mounting grooves 611 are equidistantly formed through the upper surface of the L-shaped sliding rod 61. Push-pull rods 612 are rotatably installed in the mounting grooves 611 through hinge shafts. Rollers 631 are rotatably installed in the wheel brackets 63. And hinge bolts are fixedly installed at the ends of the wheel brackets 63 far away from the rollers 631. The hinge bolts are in interference fit with the inner side walls of the inner rotor bearings 221 at the corresponding positions to realize the rotational connection between the wheel brackets 63 and the U-shaped seat 22. A fixing rod 632 is also fixedly installed in the wheel brackets 63. The fixing rod 632 is rotatably connected to the top end of the push-pull rod 612.

[0030] When the hydraulic telescopic column A62 drives the L-shaped sliding rod 61 to move leftward by using its own telescopic structure, it can use the linkage cooperation between the push-pull rod 612 and the fixing rod 632 to turn the wheel bracket 63 into the groove 21 of the die table 2, so that the roller 631 is lower than the tabletop of the die table 2, ensuring the stable placement of the U-shaped steel structure on the die table 2. On the contrary, when the hydraulic telescopic column A62 drives the L-shaped sliding rod 61 to move rightward by using its own telescopic structure, it can use the linkage cooperation between the push-pull rod 612 and the fixing rod 632 to turn the wheel bracket 63 out of the groove 21 of the die table 2, so that the roller 631 is higher than the tabletop of the die table 2. The U-shaped steel structure is lifted by the cooperation of a plurality of rollers 631 and separated from the tabletop of the die table 2, effectively reducing the frictional resistance when the U-shaped steel structure moves, thereby reducing the power requirement of the traction equipment. At the same time, continuous friction is avoided, ensuring that the outer surface of the U-shaped steel structure is not scratched and the oxide layer does not fall off, ensuring the quality of the subsequent painting process and the anti-corrosion performance.

[0031] As Figure 1 As shown in the figure, the clamping mechanism 4 includes a hydraulic telescopic column B41 fixedly installed on the lower surface of the lifting frame 3. A pressing plate 42 is fixedly installed on the lower surface of the hydraulic telescopic column B41 by bolts. The pressing plate 42 is located directly above the die table 2. The hydraulic telescopic column B41 drives the pressing plate 42 to move up and down through the telescopic movement of its own structure, so as to press and clamp the U-shaped steel structure placed on the die table 2.

[0032] When placing the U-shaped steel structure or removing it from the straightening device, for the convenience of the horizontal movement of the U-shaped steel structure, combined with Figure 1 and Figure 4As shown in the figure, auxiliary moving devices 7 are fixedly installed on the upper surfaces at the left and right ends of the pressing plate 42. The auxiliary moving device 7 includes two ear blocks 71 symmetrically and fixedly installed on the upper surface of the pressing plate 42. A V-shaped frame 72 is rotatably installed between the two ear blocks 71 through a rotating shaft. The V-shaped frame 72 is a steel structure frame, and a driving wheel 73 is rotatably installed at one end away from the ear block 71 through an adapter shaft. The driving wheel 73 is made of friction-resistant rubber wheel. A servo motor 74 is fixedly installed on the front surface of the V-shaped frame 72. The servo motor 74 is a forward and reverse rotation motor, and its output end is fixedly connected to the front end of the adapter shaft in the driving wheel 73 through a coupling, so as to drive the driving wheel 73 to rotate by using the servo motor 74. An arc spring 75 and an arc telescopic rod 76 are fixedly installed by welding on the upper surface of the V-shaped frame 72 and the pressing plate 42. The arc telescopic rod 76 is located inside the arc spring 75. The function of the arc spring 75 is that when it is not affected by external forces, it can be used to tighten and pull the driving wheel 73 in the V-shaped frame 72 under the pressing plate 42. The thick diameter of the arc telescopic rod 76 is not affected by Figure 9 vision. In the actual production process, it needs to be customized according to the inner ring size of the arc spring 75 to ensure that the arc telescopic rod 76 can play a guiding role for the arc spring 75 and prevent it from deforming and deviating during the deformation process.

[0033] The whole auxiliary moving device 7 can be moved under the drive of the pressing plate 42. When the multiple rollers 631 in the motorcycle lifting mechanism 6 lift the U-shaped steel structure, through the coordinated action of the hydraulic telescopic column B41 and the pressing plate 42, the auxiliary moving device 7 can be promoted to descend, so that the driving wheel 73 is closely attached to the upper surface of the U-shaped steel structure. It should be noted that during this process, a certain gap needs to be maintained between the pressing plate 42 and the U-shaped steel structure. At this time, the servo motor 74 can drive the driving wheel 73 to rotate in the predetermined moving direction of the U-shaped steel structure, and with the help of the friction force between the driving wheel 73 and the U-shaped steel structure, assist it to move with force. This mechanism is convenient for the lateral movement of the U-shaped steel structure when placing or removing it from the straightening device.

[0034] Combined with Figure 1 and Figure 2 As shown in the figure, the side shaping mechanism 5 includes a shaping plate 51, two hydraulic telescopic columns C52. The shaping plate 51 is cast from cast iron, which is L-shaped and has two T-shaped chutes at the bottom. Two T-shaped slide rails 12 are symmetrically and fixedly installed on the upper surface of the bottom plate 1 with the central section of the bottom plate 1 as the axis. The shaping plate 51 is slidably arranged on the upper surface of the bottom plate 1 through the sliding connection of the T-shaped chutes and the T-shaped slide rails 12. The two hydraulic telescopic columns C52 are respectively fixedly installed between the lifting frame 3 and the shaping plate 51. After the hydraulic telescopic columns C52 expand and contract, they can drive the shaping plate 51 to move towards or away from the mold table 2. When the U-shaped steel structure is placed on the mold table 2, the straightening work is completed by pressing the front and rear sides of the U-shaped steel structure with the front and rear shaping plates 51.

[0035] Working principle:

[0036] Preparation stage: Start the hydraulic telescopic column B41 to make it contract, driving the pressing plate 42 to move upward, reserving space for placing the U-shaped steel structure. Subsequently, start the hydraulic telescopic column A62, driving the L-shaped slide bar 61 to move to the right. Through the coordinated action of the L-shaped slide bar 61, the push-pull rod 612 and the wheel frame 63, a plurality of rollers 631 are pushed out of the groove 21 of the mold table 2 until the top of the rollers 631 is slightly higher than the table surface of the mold table 2, and then keep this position unchanged.

[0037] Placing the U-shaped steel structure: Use external lifting tools such as overhead crane or auxiliary vehicle to lift the U-shaped steel structure near the mold table 2. First, fasten the left end of the U-shaped steel structure to the right end of the mold table 2, and at the same time, place the inner surface of the U-shaped steel structure on the rollers 631, which can avoid contact with the upper surface of the mold table 2, thereby reducing the frictional resistance during movement and making it easier to move the U-shaped steel structure.

[0038] Moving the U-shaped steel structure: Start the pressing plate 42 to move downward, driving the auxiliary moving devices 7 on both sides to move downward synchronously until the driving wheels 73 are in close contact with the upper surface of the U-shaped steel structure. Then, start the servo motor 74 to drive the driving wheels 73 to rotate clockwise. Under the combined action of the frictional force between the driving wheels 73 and the U-shaped steel structure and the cooperation with the rollers 631, the U-shaped steel structure starts to move to the left. During the movement, the front and rear sides of the U-shaped steel structure are respectively located on the front and rear sides of the mold table 2 to ensure its lateral movement. When the U-shaped steel structure completely moves above the mold table 2, control the L-shaped slide bar 61 to turn the rollers 631 over and store them in the groove 21 of the mold table 2. At this time, the U-shaped steel structure naturally falls onto the upper surface of the mold table 2.

[0039] Fixing and shaping: Start the hydraulic telescopic column B41 again to drive the pressing plate 42 to move downward until the pressing plate 42 presses the upper surface of the U-shaped steel structure to achieve fixation. During the downward movement of the pressing plate 42, the arc-shaped spring 75 in the auxiliary moving device 7 is stretched under force to ensure that the V-shaped frame 72 and the driving wheels 73 can adapt to the work of the pressing plate 42. After the U-shaped steel structure is fixed, start the hydraulic telescopic columns C52 on both sides to drive the corresponding shaping plates 51 to move towards the U-shaped steel structure respectively, applying pressure to shape the front and rear sides. After the pressure shaping is completed, reset the side shaping mechanism 5.

[0040] Taking out the U-shaped steel structure: Referring to the operation of moving the U-shaped steel structure before, use the cooperation of the lifting mechanism 6 and the auxiliary moving device 7 again to move the straightened and shaped U-shaped steel structure to the right and finally take it out of the device.

Claims

1. A straightening device for processing a U-shaped steel structure of a ship, comprising a base plate (1) and a die table (2), characterized in that: A plurality of support platforms (11) are fixedly installed between the upper surface of the base plate (1) and the lower surface of the mold table (2); a groove (21) is provided on the upper surface of the mold table (2); a hanging frame (3) is fixedly installed on the upper surface of the base plate (1); the support platform (11) is located on the inner side of the hanging frame (3); the hanging frame (3) is located above the mold table (2); a clamping mechanism (4) and two side shaping mechanisms (5) are installed in the hanging frame (3); the two side shaping mechanisms (5) are respectively located on the front and rear sides of the mold table (2); a U-shaped seat (22) is fixedly installed in the groove (21); and a motorcycle lowering lifting mechanism (6) is installed in the U-shaped seat (22).

2. A straightening device for processing a U-shaped steel structure of a ship according to claim 1, characterized in that: The motorcycle lowering lifting mechanism (6) comprises an L-shaped sliding rod (61), a hydraulic telescopic column A (62) and a plurality of wheel frames (63); the L-shaped sliding rod (61) is slidably arranged in the groove (21); the hydraulic telescopic column A (62) is fixedly installed between the left end of the L-shaped sliding rod (61) and the left surface of the mold table (2); the plurality of wheel frames (63) are rotatably installed in the U-shaped seat (22); a roller (631) is rotatably installed in the wheel frame (63); a fixing rod (632) is fixedly installed in the wheel frame (63); a plurality of mounting grooves (611) are equidistantly arranged in the upper surface of the L-shaped sliding rod (61); a push-pull rod (612) is rotatably installed in the mounting groove (611); and the push-pull rod (612) is rotatably connected to the corresponding fixing rod (632).

3. A straightening device for processing a U-shaped steel structure of a ship according to claim 1, characterized in that: The clamping mechanism (4) comprises a hydraulic telescopic column B (41) fixedly mounted in the hanging frame (3), a pressing plate (42) being fixedly mounted on the lower surface of the hydraulic telescopic column B (41), and the pressing plate (42) being located above the mold table (2).

4. A straightening device for processing a U-shaped steel structure of a ship according to claim 3, characterized in that: The upper surfaces of the left and right ends of the pressing plate (42) are both provided with movement-assisting devices (7); The transfer-assisting devices (7) each comprise two ear blocks (71) fixedly mounted on the upper surface of a pressure plate (42); a V-shaped frame (72) is rotatably mounted between the two ear blocks (71); a driving wheel (73) is rotatably mounted on one end of the V-shaped frame (72) away from the ear block (71) via a transfer shaft; a servo motor (74) is fixedly mounted on the front surface of the V-shaped frame (72); an output end of the servo motor (74) is fixedly connected to a front end of the transfer shaft; an arc spring (75) and an arc telescopic rod (76) are fixedly mounted between the V-shaped frame (72) and the pressure plate (42); the arc telescopic rod (76) is located on the inner side of the arc spring (75).

5. The straightening device for processing a U-shaped steel structure of a ship according to claim 1, characterized in that: The side shaping mechanisms (5) each comprise a shaping plate (51) and two hydraulic telescopic columns C (52), wherein the shaping plate (51) is slidably mounted on the upper surface of the base plate (1), the outer ends of the hydraulic telescopic columns C (52) are fixedly connected to the inner wall of the hanging frame (3), and the inner ends of the hydraulic telescopic columns C (52) are fixedly connected to the outer surface of the shaping plate (51).

6. A straightening device for processing a U-shaped steel structure of a ship according to claim 5, characterized in that: Two T-shaped slide rails (12) are fixedly mounted on the upper surface of the bottom plate (1), and two T-shaped slide grooves are provided on the lower surface of the shaping plate (51), wherein the T-shaped slide rails (12) are slidably connected to the T-shaped slide grooves.

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