A high-precision numerical control leveling and correcting device for shipbuilding plate

Abstract

The application discloses a high-precision numerical control leveling and correcting equipment for plate manufacturing of a ship, and relates to the technical field of plate processing. The processing table is externally fixedly connected with a single-chip microcomputer, externally fixedly connected with a pre-pressing device, and externally provided with a correcting shell. The independent pre-pressing device is driven by a pre-pressing motor to drive a rotating handle, a pull rod, a connecting plate and a sliding rod to reciprocate, and cooperate with a pushing spring to store and release elastic force, so that a pressing block is driven to elastically hammer and pre-press the plate. Differing from a traditional rigid pressing structure, the elastic pre-pressing mode can adapt to ship plates with different thicknesses, buffer pressing impact force, reduce scratches, depressions and deformation damage caused by hard extrusion on the surface of the plate, and eliminate large deformation of the plate in advance, thereby providing a basis for subsequent correction.

Description

Technical Field

[0001] This invention relates to the field of sheet metal processing technology, and in particular to a high-precision CNC leveling and straightening device for sheet metal used in shipbuilding. Background Technology

[0002] In the shipbuilding and processing industry, sheet metal is the core basic material for hull structure construction and component processing. During the rolling, handling, stacking and early cutting processes, sheet metal is prone to defects such as bending, warping, and uneven deformation. If it is not accurately leveled and corrected, it will directly affect the subsequent assembly accuracy of hull components, welding quality and overall hull structural strength. Therefore, sheet metal leveling and straightening is an indispensable key process in the shipbuilding process.

[0003] In existing technologies, most traditional ship plate straightening equipment adopts a rigid pressing straightening structure. During operation, it flattens deformed plates through hard extrusion, lacking a flexible pre-compression buffer structure. When processing ship plates of different thicknesses, the rigid pressing impact force cannot be adaptively adjusted, easily causing scratches, dents, secondary extrusion deformation, and other damage to the plate surface. Furthermore, the pressure roller structure of existing straightening equipment is mostly designed with a fixed spacing, which can only be adapted to the straightening of plates of a single specification. The equipment has poor adaptability and processing flexibility, making it difficult to meet the fine straightening processing needs of plates of multiple specifications and deformation states in shipbuilding, thus limiting its application scope. Summary of the Invention

[0004] The technical solution provided by this invention is as follows: A high-precision CNC leveling and straightening equipment for steel plates used in shipbuilding includes: a processing table, a single-chip microcomputer fixedly connected to the outer wall of the processing table, a pre-pressing device fixedly connected to the outer wall of the processing table, a straightening shell disposed outside the processing table, and straightening devices arranged in an array inside the straightening shell; the pre-pressing device includes a bracket, a mounting frame slidably connected to the inner wall of the bracket, a pressing block fixedly connected to the bottom end of the mounting frame, a sliding rod symmetrically slidably connected to the inner wall of the top end of the bracket, and a connecting plate fixedly connected to the top end of the sliding rod; the straightening device includes a pressing roller, a rotating roller symmetrically disposed at the bottom end of the pressing roller, a limit block symmetrically rotatably connected to the outer wall of the pressing roller, a fixing block slidably connected to the outer wall of the limit block, and an adjusting screw threadedly connected to the inner wall of the top end of the fixing block.

[0005] The invention is further configured such that the bottom end of the bracket is fixedly connected to the outer wall of the processing table, the outer wall of the pressing block is slidably connected to the inner wall of the bracket, and a push spring is symmetrically fixedly connected to the outer wall of the mounting frame. The end of the push spring furthest from the mounting frame is fixedly connected to the outer walls of the sliding rod and the connecting plate, respectively. During the lifting and lowering of the connecting plate and the sliding rod, the push spring continuously elastically stores and releases force, driving the mounting frame and the pressing block at the bottom to reciprocate elastically along the inner wall of the bracket, thus achieving elastic hammer pre-compression. This elastic pre-compression structure can adapt to ship plates of different thicknesses, reducing the squeezing damage to the plate surface caused by rigid pressure through elastic buffering.

[0006] The present invention is further configured such that a preload motor is fixedly connected to the top of the bracket, a handle is fixedly connected to the output end of the preload motor, a pull rod is rotatably connected to the other end of the handle, and the end of the pull rod away from the handle is rotatably connected to the outer wall of the connecting plate.

[0007] The present invention is further configured such that a receiving plate is fixedly connected to the outer wall of the straightening shell, the outer wall of the receiving plate is fixedly connected to the outer wall of the processing table, and a drive motor is fixedly connected to the outer wall of the straightening shell.

[0008] The present invention is further configured such that a laser sensor is fixedly connected to the inner wall of the correction shell, and the laser sensor is disposed between the two sets of correction devices.

[0009] The invention is further configured such that the outer wall of the fixing block is slidably connected to the inner wall of the straightening shell, and an adjusting cylinder is fixedly connected to the outer wall of the fixing block. The outer wall of the adjusting cylinder is fixedly connected to the outer wall of the straightening shell. By adjusting the extension and retraction of the adjusting cylinder, the fixing block and the entire straightening device can be vertically finely adjusted, realizing independent and precise adjustment of the working height of a single straightening device, adapting to the needs of local deformation correction of sheet metal.

[0010] The invention is further configured such that the outer wall of the rotating roller is rotatably connected to the inner wall of the bottom end of the fixed block, and the bottom end of the adjusting screw is rotatably connected to the outer wall of the limiting block. Operators can rotate the adjusting screw to push the limiting block, thereby causing the pressure roller to move vertically and precisely adjusting the distance between the pressure roller and the bottom rotating roller. This adapts to straightening operations on ship plates of different thicknesses and meets the requirements of different processing specifications.

[0011] The present invention is further configured such that the rotating roller is connected to a first driven rod via a pulley set, and the other rotating roller is connected to a second driven rod via a pulley set, wherein a transmission gear is provided on the outside of the second driven rod.

[0012] The invention is further configured such that both the first driven rod and the second driven rod mesh with a transmission gear, and the outer walls of the first driven rod, the second driven rod, and the transmission gear are rotatably connected to the inner wall of the straightening housing. The outer wall of the transmission gear is fixedly connected to the output end of the drive motor. After the drive motor starts, it drives the transmission gear to rotate. Through gear meshing, it synchronously drives the first driven rod and the second driven rod to rotate in the same direction. In turn, through two sets of pulleys, it drives two sets of rotating rollers to rotate synchronously in the same direction, realizing uniform conveying and rolling straightening of the sheet metal, ensuring that the operating rhythm of multiple straightening devices is uniform and the straightening force is even.

[0013] The invention is further configured such that a pull wheel is slidably connected to the outer wall of the pulley assembly, a moving rod is fixedly connected to the outer wall of the pull wheel, and a pull spring is fixedly connected to the outer wall of the pull wheel. The outer wall of the moving rod is slidably connected to the inner wall of the straightening housing, and the end of the pull spring away from the pull wheel is fixedly connected to the inner wall of the straightening housing. When the straightening device is vertically adjusted or the distance between the pulleys changes, the pull spring continuously and elastically pulls the pull wheel, causing the moving rod to slide and finely adjust synchronously, adaptively compensating for the tightness of the pulley assembly, always keeping the pulley assembly in a taut transmission state, and preventing the belt from becoming loose and slipping.

[0014] The beneficial effects of the technical solution provided by this invention include:

[0015] This equipment is equipped with an independent pre-compression device. The pre-compression motor drives the handle and pull rod to move the connecting plate and slide rod back and forth. In conjunction with the push spring, the elastic force is stored and released, which drives the pressing block to perform elastic hammering pre-compression on the plate. Unlike the traditional rigid pressing structure, this elastic pre-compression method can adapt to ship plates of different thicknesses, buffer the impact force of pressing, reduce scratches, dents and deformation damage to the plate surface caused by hard extrusion, and eliminate large deformation of the plate in advance, providing a basis for subsequent correction.

[0016] This equipment is equipped with a straightening device and an adjustable pressure roller structure. By rotating the adjusting screw, the limit block can be pushed to slide vertically, adjusting the distance between the pressure roller and the rotating roller. At the same time, relying on the adjusting cylinder to drive the fixed block to slide as a whole, the working height of a single set of straightening devices can be finely adjusted. The dual adjustment structure can be used for targeted straightening of different thicknesses of plates and local deformation areas of the plates.

[0017] This equipment adds an adaptive tensioning structure consisting of a pull wheel, a pull spring, and a moving rod to the pulley assembly. When the straightening device is vertically adjusted or the transmission distance is changed, the pull spring can continuously pull the pull wheel to automatically compensate for the belt tension, ensuring that the pulley assembly is always in a taut transmission state. This avoids transmission slippage and uneven speed, ensures that the two sets of rotating rollers operate synchronously and stably, and guarantees the consistency of sheet material conveying and straightening.

[0018] This equipment employs a numerical control structure that links laser sensors with a microcontroller. The laser sensor can detect the curvature and flatness deformation data of the moving sheet material in real time and feed the signal back to the microcontroller. Based on the real-time data, the microcontroller intelligently controls the extension and retraction stroke of each group of adjusting cylinders, dynamically fine-tuning the correction parameters to achieve precise closed-loop correction of sheet material deformation. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the pre-compression device of the present invention;

[0021] Figure 3 This is a schematic diagram of the structure of the corrective shell of the present invention;

[0022] Figure 4 This is a schematic diagram of the internal structure of the corrective shell of the present invention;

[0023] Figure 5 This is a schematic diagram of the corrective device of the present invention;

[0024] Figure 6 This is a side view of the correction device of the present invention;

[0025] Figure 7 This is a schematic diagram of the structure of the limiting block of the present invention.

[0026] In the diagram: 1. Processing table; 2. Straightening shell; 3. Pre-pressing device; 31. Bracket; 32. Pressing block; 33. Mounting bracket; 34. Slide rod; 35. Pull rod; 36. Rotary handle; 37. Pre-pressing motor; 38. Connecting plate; 39. Push spring; 4. Microcontroller; 5. Drive motor; 6. Receiving plate; 7. Straightening device; 71. Pressing roller; 72. Rotating roller; 73. Second driven rod; 74. Fixed block; 75. Pulley assembly; 76. Pulling wheel; 77. Pulling spring; 78. Moving rod; 79. Adjusting cylinder; 710. Transmission gear; 711. First driven rod; 712. Limit block; 713. Adjusting screw; 8. Laser sensor. Detailed Implementation

[0027] Example:

[0028] Please see Figure 1 - Figure 7This invention provides a technical solution: a high-precision CNC leveling and straightening device for steel plates used in shipbuilding, comprising: a processing table 1, a single-chip microcomputer 4 fixedly connected to the outer wall of the processing table 1, a pre-pressing device 3 fixedly connected to the outer wall of the processing table 1, a straightening shell 2 disposed outside the processing table 1, and straightening devices 7 arranged in an array inside the straightening shell 2; the pre-pressing device 3 includes a bracket 31, a mounting frame 33 slidably connected to the inner wall of the bracket 31, a pressing block 32 fixedly connected to the bottom end of the mounting frame 33, a sliding rod 34 symmetrically slidably connected to the inner wall of the top end of the bracket 31, and a connecting plate 38 fixedly connected to the top end of the sliding rod 34; the straightening device 7 includes a pressing roller 71, a rotating roller 72 symmetrically disposed at the bottom end of the pressing roller 71, a limiting block 712 symmetrically rotatably connected to the outer wall of the pressing roller 71, a fixing block 74 slidably connected to the outer wall of the limiting block 712, and an adjusting screw 713 threadedly connected to the inner wall of the top end of the fixing block 74.

[0029] The bottom end of the bracket 31 is fixedly connected to the outer wall of the processing table 1. The outer wall of the pressing block 32 is slidably connected to the inner wall of the bracket 31. The outer wall of the mounting frame 33 is symmetrically fixedly connected with push springs 39. The end of the push spring 39 away from the mounting frame 33 is fixedly connected to the outer wall of the slide rod 34 and the connecting plate 38 respectively.

[0030] A preload motor 37 is fixedly connected to the top of the bracket 31. A handle 36 is fixedly connected to the output end of the preload motor 37. A pull rod 35 is rotatably connected to the other end of the handle 36. The end of the pull rod 35 away from the handle 36 is rotatably connected to the outer wall of the connecting plate 38.

[0031] A receiving plate 6 is fixedly connected to the outer wall of the straightening shell 2. The outer wall of the receiving plate 6 is fixedly connected to the outer wall of the processing table 1. A drive motor 5 is fixedly connected to the outer wall of the straightening shell 2. A laser sensor 8 is fixedly connected to the inner wall of the straightening shell 2 and is located between the two sets of straightening devices 7. The outer wall of the fixing block 74 is slidably connected to the inner wall of the straightening shell 2. An adjusting cylinder 79 is fixedly connected to the outer wall of the fixing block 74 and is fixedly connected to the outer wall of the straightening shell 2.

[0032] The outer wall of the rotating roller 72 is rotatably connected to the inner wall of the bottom end of the fixed block 74, and the bottom end of the adjusting screw 713 is rotatably connected to the outer wall of the limiting block 712. The rotating roller 72 is driven by a first driven rod 711 through a pulley set 75, and the other rotating roller 72 is driven by a second driven rod 73 through a pulley set 75. A transmission gear 710 is provided on the outside of the second driven rod 73.

[0033] Both the first driven rod 711 and the second driven rod 73 mesh with the transmission gear 710. The outer walls of the first driven rod 711, the second driven rod 73, and the transmission gear 710 are rotatably connected to the inner wall of the straightening housing 2. The outer wall of the transmission gear 710 is fixedly connected to the output end of the drive motor 5. A pull wheel 76 is slidably connected to the outer wall of the pull wheel assembly 75. A moving rod 78 is fixedly connected to the outer wall of the pull wheel 76. A tension spring 77 is fixedly connected to the outer wall of the pull wheel 76. The outer wall of the moving rod 78 is slidably connected to the inner wall of the straightening housing 2. The end of the tension spring 77 away from the pull wheel 76 is fixedly connected to the inner wall of the straightening housing 2.

[0034] This high-precision CNC leveling and straightening equipment for shipbuilding plates uses the processing table 1 as the carrier base and relies on the single-chip microcomputer 4 to achieve overall CNC control. The pre-processing of the plate is completed by the pre-pressing device 3, and then the high-precision leveling and straightening of the plate is completed by multiple sets of straightening devices 7 arranged in an array inside the straightening shell 2. At the same time, it is combined with sensor detection and transmission adjustment components to achieve adaptive and precise straightening. It is suitable for processing ship plates of different thicknesses and curvatures. The overall operation process is smooth, highly accurate and with minimal damage to the plate.

[0035] In the initial operating state, the processing table 1 serves as the mounting and processing base for the entire equipment, fixedly housing all functional components such as the microcontroller 4, pre-pressing device 3, straightening shell 2, and receiving plate 6, providing a stable operating platform for sheet metal processing. The microcontroller 4, as the core CNC control element, coordinates and regulates the operating parameters and working rhythm of various electrical and transmission components, ensuring high-precision CNC operation. The straightening shell 2 is fixedly located on the outside of the processing table 1, providing a closed installation space for the internal straightening device 7, sensing components, and transmission components. Simultaneously, it works with the externally fixed receiving plate 6 to receive and guide the sheet metal feeding. The receiving plate 6 is connected to the straightening shell 2 and the processing table 1 at both ends, ensuring the sheet metal is smoothly fed into the straightening station.

[0036] Before the formal straightening of the sheet material, the equipment first performs pre-pressing and leveling pre-treatment of the sheet material through the pre-pressing device 3 to eliminate large deformation of the sheet material and lay the foundation for subsequent fine straightening. The bracket 31 of the pre-pressing device 3 is fixed to the outer wall of the processing table 1, serving as the main support for the pre-pressing operation. The mounting frame 33 is slidably mounted on the inner wall of the bracket 31, and the bottom end of the mounting frame 33 is fixed with a pressing block 32, which can slide up and down with the mounting frame 33 to complete the hammering pre-pressing operation of the sheet material. The pre-pressing motor 37 installed at the top of the bracket 31 provides power for the pre-pressing action. The output end of the pre-pressing motor 37 is connected to the handle 36, which rotates synchronously with the motor, thereby pulling the pull rod 35 that is rotatably connected to it. The other end of the pull rod 35 is rotatably connected to the connecting plate 38 at the top of the bracket 31. The rotational motion of the handle 36 is converted into the pushing and pulling linear motion of the pull rod 35, which drives the connecting plate 38 to achieve lifting and lowering displacement.

[0037] A sliding rod 34 is fixedly connected to the bottom end of the connecting plate 38. The sliding rod 34 is symmetrically slidably mounted on the inner wall of the top of the bracket 31, and can slide and rise synchronously with the connecting plate 38 to achieve motion guidance and limit, ensuring operational stability. Simultaneously, multiple sets of push springs 39 are symmetrically fixed to the outer wall of the mounting frame 33. The other end of each push spring 39 is fixedly connected to the sliding rod 34 and the outer wall of the connecting plate 38. During the rising and falling of the connecting plate 38 and the sliding rod 34, the push springs 39 continuously store and release elastic force, driving the mounting frame 33 and the bottom pressing block 32 to reciprocate elastically along the inner wall of the bracket 31, achieving elastic hammer pre-compression. This elastic pre-compression structure can adapt to ship plates of different thicknesses, reducing the squeezing damage to the plate surface caused by rigid pressure through elastic buffering, and completing the initial flattening treatment of the plate.

[0038] The pre-compression treated sheet metal is guided into the straightening shell 2 by the receiving plate 6, where multiple sets of straightening devices 7 arranged in an array perform high-precision leveling and straightening operations. The core straightening components of the straightening device 7 are the pressure roller 71 and two sets of rotating rollers 72 symmetrically arranged at its bottom. The pressure roller 71 and the rotating rollers 72 cooperate to clamp the sheet metal, realizing the rolling, leveling, and conveying of the sheet metal. The outer wall of the pressure roller 71 is symmetrically fitted with a limiting block 712, which slides inside the fixed block 74 and can slide vertically relative to the fixed block 74. The inner wall of the top of the fixed block 74 is threaded with an adjusting screw 713, and the bottom end of the adjusting screw 713 is rotatably connected to the outer wall of the limiting block 712. The operator can rotate the adjusting screw 713 to push the limiting block 712 to drive the pressure roller 71 to move vertically, precisely adjusting the distance between the pressure roller 71 and the bottom rotating rollers 72, thereby adapting to the straightening operations of ship sheet metal of different thicknesses and meeting the requirements of different processing specifications.

[0039] The fixing block 74 is slidably mounted on the inner wall of the straightening shell 2 and can be vertically adjusted along the inner wall of the straightening shell 2. The outer wall of the fixing block 74 is fixedly connected to the adjusting cylinder 79, and the other end of the adjusting cylinder 79 is fixed to the outer wall of the straightening shell 2. By adjusting the extension and retraction of the adjusting cylinder 79, the fixing block 74 and the entire straightening device 7 can be vertically finely adjusted, realizing independent and precise adjustment of the working height of a single straightening device 7, adapting to the needs of local deformation straightening of the sheet metal. Both sets of rotating rollers 72 are rotatably mounted on the inner wall of the bottom end of the fixing block 74 to ensure stable rotation of the rotating rollers 72. Each set of rotating rollers 72 is connected to the transmission through the pulley group 75. One set of rotating rollers 72 is connected to the first driven rod 711 through the pulley group 75, and the other set of rotating rollers 72 is connected to the second driven rod 73 through the pulley group 75.

[0040] Both the first driven rod 711 and the second driven rod 73 mesh with the transmission gear 710, which is fixedly mounted on the output end of the drive motor 5. The drive motor 5 is fixed to the outer wall of the straightening housing 2, serving as the core power source for the straightening device 7. After the drive motor 5 starts, it drives the transmission gear 710 to rotate. Through gear meshing, it synchronously drives the first driven rod 711 and the second driven rod 73 to rotate in the same direction. In turn, through two sets of pulleys 75, it drives two sets of rotating rollers 72 to rotate synchronously in the same direction, achieving uniform conveying and rolling of the sheet metal, ensuring a unified operating rhythm and uniform straightening force across the multiple straightening devices 7.

[0041] To adapt to the transmission requirements after the vertical adjustment of the straightening device 7, a pull wheel 76 is slidably mounted on the outer wall of the pulley assembly 75. A moving rod 78 and a pulling spring 77 are fixedly connected to the outer side of the pull wheel 76. The moving rod 78 is slidably mounted on the inner wall of the straightening housing 2, serving as a sliding guide. The other end of the pulling spring 77 is fixed to the inner wall of the straightening housing 2. When the vertical adjustment of the straightening device 7 and the spacing of the pulley assembly 75 change, the pulling spring 77 continuously and elastically pulls the pull wheel 76, causing the moving rod 78 to slide and finely adjust synchronously. This adaptively compensates for the tightness of the pulley assembly 75, always keeping the pulley assembly 75 in a taut transmission state, preventing belt slippage, and ensuring transmission stability and straightening accuracy.

[0042] A laser sensor 8 is fixedly installed between two adjacent straightening devices 7. The laser sensor 8 is fixed to the inner wall of the straightening shell 2. During the sheet metal straightening operation, the laser sensor 8 detects the curvature and flatness deformation data of the moving sheet metal in real time and transmits the detection signal to the microcontroller 4 in real time. The microcontroller 4 combines the preset straightening parameters and the real-time detection data to intelligently control the extension and retraction stroke of each set of adjusting cylinders 79, and precisely fine-tunes the working height and pressure roller spacing of the corresponding straightening device 7. This allows for targeted correction of local deformation positions of the sheet metal, realizing automated, high-precision, and adaptive sheet metal leveling operations, and ultimately completing the fully automated CNC high-precision leveling and straightening processing of ship sheet metal.

[0043] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. The scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A high-precision CNC leveling and straightening device for steel plates used in shipbuilding, characterized in that, include: A processing table (1) is fixedly connected to a single-chip microcomputer (4) on its outer wall. A pre-pressing device (3) is fixedly connected to the outer wall of the processing table (1). A correction shell (2) is provided on the outside of the processing table (1). A correction device (7) is arranged in an array inside the correction shell (2). The pre-compression device (3) includes a bracket (31), a mounting bracket (33) is slidably connected to the inner wall of the bracket (31), a pressing block (32) is fixedly connected to the bottom end of the mounting bracket (33), a sliding rod (34) is symmetrically slidably connected to the inner wall of the top end of the bracket (31), and a connecting plate (38) is fixedly connected to the top end of the sliding rod (34). The correction device (7) includes a pressure roller (71), a rotating roller (72) is symmetrically arranged at the bottom end of the pressure roller (71), a limit block (712) is symmetrically rotatably connected to the outer wall of the pressure roller (71), a fixed block (74) is slidably connected to the outer wall of the limit block (712), and an adjusting screw (713) is threadedly connected to the inner wall of the top end of the fixed block (74).

2. The high-precision CNC leveling and straightening equipment for steel plates used in shipbuilding according to claim 1, characterized in that: The bottom end of the bracket (31) is fixedly connected to the outer wall of the processing table (1), the outer wall of the pressing block (32) is slidably connected to the inner wall of the bracket (31), and the outer wall of the mounting frame (33) is symmetrically fixedly connected with a push spring (39). The end of the push spring (39) away from the mounting frame (33) is fixedly connected to the outer wall of the slide rod (34) and the connecting plate (38) respectively.

3. The high-precision CNC leveling and straightening equipment for steel plates used in shipbuilding according to claim 2, characterized in that: A preload motor (37) is fixedly connected to the top of the bracket (31). A handle (36) is fixedly connected to the output end of the preload motor (37). A pull rod (35) is rotatably connected to the other end of the handle (36). The end of the pull rod (35) away from the handle (36) is rotatably connected to the outer wall of the connecting plate (38).

4. The high-precision CNC leveling and straightening equipment for steel plates used in shipbuilding according to claim 1, characterized in that: The outer wall of the straightening shell (2) is fixedly connected to a receiving plate (6), the outer wall of the receiving plate (6) is fixedly connected to the outer wall of the processing table (1), and the outer wall of the straightening shell (2) is fixedly connected to a drive motor (5).

5. A high-precision CNC leveling and straightening equipment for steel plates used in shipbuilding according to claim 4, characterized in that: A laser sensor (8) is fixedly connected to the inner wall of the correction shell (2), and the laser sensor (8) is disposed between the two sets of correction devices (7).

6. The high-precision CNC leveling and straightening equipment for shipbuilding plates according to claim 1, characterized in that: The outer wall of the fixing block (74) is slidably connected to the inner wall of the correction shell (2), and the outer wall of the fixing block (74) is fixedly connected to the adjusting cylinder (79), and the outer wall of the adjusting cylinder (79) is fixedly connected to the outer wall of the correction shell (2).

7. The high-precision CNC leveling and straightening equipment for steel plates used in shipbuilding according to claim 1, characterized in that: The outer wall of the rotating roller (72) is rotatably connected to the inner wall of the bottom end of the fixed block (74), and the bottom end of the adjusting screw (713) is rotatably connected to the outer wall of the limiting block (712).

8. A high-precision CNC leveling and straightening equipment for steel plates used in shipbuilding according to claim 7, characterized in that: The rotating roller (72) is connected to a first driven rod (711) via a pulley set (75), and the other rotating roller (72) is connected to a second driven rod (73) via a pulley set (75). A transmission gear (710) is provided on the outside of the second driven rod (73).

9. A high-precision CNC leveling and straightening equipment for steel plates used in shipbuilding according to claim 8, characterized in that: The first driven rod (711) and the second driven rod (73) are both engaged with the transmission gear (710). The outer walls of the first driven rod (711), the second driven rod (73) and the transmission gear (710) are rotatably connected to the inner wall of the straightening shell (2). The outer wall of the transmission gear (710) is fixedly connected to the output end of the drive motor (5).

10. A high-precision CNC leveling and straightening equipment for steel plates used in shipbuilding according to claim 8, characterized in that: The outer wall of the pulley assembly (75) is slidably connected to a pull wheel (76), the outer wall of the pull wheel (76) is fixedly connected to a moving rod (78), the outer wall of the pull wheel (76) is fixedly connected to a pulling spring (77), the outer wall of the moving rod (78) is slidably connected to the inner wall of the correction shell (2), and the end of the pulling spring (77) away from the pull wheel (76) is fixedly connected to the inner wall of the correction shell (2).

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