Special-shaped steel structure intelligent bending device and method for airport building construction

Abstract

The invention discloses an intelligent bending device and method for a special-shaped steel structure for airport building construction, and relates to the technical field of bending machining. The intelligent special-shaped steel structure bending device and method for airport building construction comprise a bending machine body provided with a clamping unit, a pressing unit and a bending unit, and the bending machine body is internally provided with a cooling assembly used for changing the bending degree, a maintaining assembly used for fixing the bending degree and an adjusting assembly used for changing a cooling area. The cooling assembly comprises a bending knife which is fixed to the pressing unit and matched with the push plate to bend the plate. The heating block is fixed on the bending knife and is used for shaping the bending knife by changing the temperature of the bending knife; the bending cutter can be automatically adjusted according to the curvature of a plate needing to be bent every time, the bending cutter can meet the requirements of various different curvatures, different molds or tools do not need to be replaced, the production flexibility is improved, the preparation time is shortened, and the working efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of bending processing, and specifically to a special-shaped steel structure intelligent bending device and method for airport building construction. Background Technique

[0002] A sheet is a flat rectangular building material board made in standard sizes and is applied in the construction industry. When used for airport building construction, since the designs inside and outside the airport mostly include arc surfaces with different curvatures, it is necessary to bend the steel structure sheets. When bending the sheets, a bending machine is usually used. When the existing bending machine is performing sheet bending processing, it usually requires the cooperation between the bending knife and the mold to extrude the required bent surface. Usually, multiple types of arc-shaped sheets with different curvatures are required in an airport building, which requires multiple types of bending knives and molds. Moreover, during subsequent bending processing, it is difficult to encounter the same curvature requirements, resulting in idleness. For example, a sheet bending workbench for a sheet bending center disclosed in the patent publication number CN220560128U has the problem that when undertaking the steel structure sheet bending order for airport building construction, it is necessary to purchase multiple types of bending knives and supporting molds, and the utilization rate is low. A sheet bending device disclosed in the patent publication number CN219985821U also has the problem that different-sized adjusting rollers need to be coordinated with the bending head to adapt to the bending requirements of multiple curved surfaces. Therefore, a special-shaped steel structure intelligent bending device and method for airport building construction are proposed. Summary of the Invention

[0003] Aiming at the deficiencies of the prior art, the present invention provides a special-shaped steel structure intelligent bending device and method for airport building construction, which solves the problems raised in the background technique.

[0004] To achieve the above objectives, the present invention is realized through the following technical solutions: A special-shaped steel structure intelligent bending device for airport building construction includes a bending machine body with a clamping unit, a pressing unit, and a bending unit, a control panel fixed on the front of the bending machine body, a push plate installed at the output end of the bending unit, and a sheet for airport building to be bent. A cooling component for changing the bending curvature, a holding component for fixing the bending curvature, and an adjusting component for changing the cooling area are provided inside the bending machine body. The cooling component includes: A bending knife, fixed on the pressing unit and cooperating with the push plate to bend the sheet; A heating block, fixed on the bending knife to change the temperature of the bending knife for shaping the bending knife; A blower, fixed on the heating block through a mounting plate to provide a cooling medium; The wind storage plate is connected to the fan through an air delivery pipe and a tee joint to cool and shape the bent and curved knife after shaping.

[0005] Preferably, the cooling assembly further includes: a closing plate, hinged to the wind storage plate through a hinge, and changing the flow direction of the cold air under the drive of an external force; a force-receiving plate, fixed on the side wall of the closing plate, and changing the flow rate of the cold air.

[0006] Preferably, the cooling assembly further includes: a movable shaft, movably installed on the side wall of the closing plate through a bearing; a guiding plate, fixed at one end of the movable shaft, guiding the flow direction of the cold air; a spring, fixed at the top of the guiding plate, providing elastic force for resetting the guiding plate.

[0007] Preferably, the holding assembly includes: a hydraulic cylinder, fixed inside the bending machine, providing power for the operation of the holding assembly; a sealing sleeve, fixed on the bottom surface of the pressing unit at the top and communicating with the hydraulic cylinder through an oil delivery pipe; a piston plate, slidably and sealingly installed inside the sealing sleeve, changing its position under the drive of the hydraulic cylinder to limit the deformation range of the bent and curved knife; an abutting rod, one end of which is movably installed at the bottom of the piston plate through a mounting shaft.

[0008] Preferably, the holding assembly further includes: a fixing frame, fixed on the bent and curved knife, and the top thereof abuts against the bottom of the abutting rod, restricting the movement of the bent and curved knife under the action of an external force; a limiting block, fixed inside the fixing frame; a guiding rod, slidably penetrating outside the limiting block, and one end thereof slidably penetrating inside the fixing frame to support and guide the fixing frame.

[0009] Preferably, the adjusting assembly includes: a servo motor, fixedly installed inside the bending machine, providing power for the operation of the adjusting assembly; a rotating shaft, one end of which is fixed to the output end of the servo motor, conducting the power output by the servo motor; a winding disc, fixed at the bottom of the rotating shaft at the top, and rotating under the drive of the rotating shaft.

[0010] Preferably, the adjusting assembly further includes: a wire, both ends of which are fixed on the winding disc, and the winding directions of both ends are set in opposite directions; a sliding seat, one end of which slidably penetrates inside the bending machine, and the two side surfaces are respectively fixed to both ends of the wire, and linearly slides along the bending machine body under the drive of the wire; a temperature sensor, fixed at the bottom of the sliding seat, detecting the temperature of the bent and curved knife.

[0011] Preferably, the adjusting assembly further includes: a limiting rod, one end of which is fixed inside the wind storage plate; a sliding plate, slidably sleeved on the limiting rod, and capable of linearly sliding along the limiting rod under the drive of an external force; an electromagnet, fixed on the side wall of the sliding plate; a magnet, fixed at one end of the force-receiving plate, and magnetically cooperating with the electromagnet to change the flipping angle of the closing plate.

[0012] The present invention also provides a bending method applicable to a special-shaped steel structure intelligent bending device for airport building construction, comprising the following steps: S1. Determine the required curvature according to the design requirements, start the operation of the cold zone component through the control panel, adjust the temperature of the bending knife and shape it to the required curvature; S2. During the shaping process, the holding component and the adjusting component cooperate with the cooling component to operate, and precisely control the curvature of the bending knife after shaping; S3. Place the steel plates for the airport atrium and public area to be bent on the bending machine body; S4. After clamping the steel plates by the clamping unit, control the operation of the pressing unit by the control panel, make the bending knife abut against the top of the plates, and then control the bending unit to drive the push plate to move in cooperation with the bending knife, so as to complete the bending operation; S5. Replace the next plate to be bent and convey the bent plate to the next process.

[0013] Preferably, when the bending knife performs the bending operation, it first contacts the plate for 10 - 30 s, and then the bending unit drives the push plate to move in cooperation with the bending knife to bend the plate.

[0014] The present invention provides a special-shaped steel structure intelligent bending device and method for airport building construction. Compared with the prior art, it has the following beneficial effects: (1) The special-shaped steel structure intelligent bending device and method for airport building construction can automatically adjust the bending knife according to the curvature of the plate to be bent each time, can be applicable to various different curvature requirements, without the need to replace different molds or tools, improves the production flexibility, greatly reduces the preparation time, improves the work efficiency. Especially in the case where airport buildings are very different and there are production requirements of small batches and multiple varieties, it can quickly adjust the production equipment to meet different design requirements.

[0015] (2) The special-shaped steel structure intelligent bending device and method for airport building construction can prevent further deformation of the bending knife by immediately locking the position of the bending knife, ensure that even when the shape memory metal has not completely cooled and is still in a high-temperature and high-plastic state, it can maintain an accurate angle and shape, thus avoiding the deviation between the curvature and the designed curvature, contributing to improving the quality and consistency of the final product, avoiding additional deformation of the shape memory metal under unexpected conditions, reducing the fatigue damage to the material caused by repeated unnecessary deformation, extending the service life of the bending knife, reducing the requirements for the cooling system, and increasing its applicability in different environments.

[0016] (3) The special-shaped steel structure intelligent bending device and method for airport building construction can concentrate cold air on the areas with higher temperature by dynamically adjusting the direction of cold air, avoiding the situation that some areas cool too slowly while some other areas have been over-cooled, thus improving the overall cooling speed and efficiency. At the same time, it can avoid affecting the accuracy and consistency of its restoration to the initial shape, prevent processing errors caused by local deformation, maintain the controllability and repeatability of the deformation or restoration process, reduce internal stress by effectively controlling the temperature difference, and extend the service life of the folding cutter.

[0017] Other features and advantages of the present invention will be described in the following specification, and some of them will be obvious from the specification or understood by implementing the present invention. The objectives and other advantages of the present invention can be achieved and obtained through the structures specifically pointed out in the written specification and the drawings. Brief Description of the Drawings

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is another perspective view of the overall structure of the present invention; Figure 3 It is a position structure diagram of the oil pipeline of the present invention; Figure 4 It is a position structure diagram of the air storage plate of the present invention; Figure 5 It is a position structure diagram of the fan of the present invention; Figure 6 It is a position structure diagram of the sliding plate of the present invention; Figure 7 It is a schematic diagram of the open state of the single force-bearing plate of the present invention; Figure 8 It is a structure diagram of the movable shaft of the present invention; Figure 9 It is a combined state structure diagram of the guide rods of the present invention; Figure 10 It is a disassembled state structure diagram of the limit block of the present invention; Figure 11 It is a side sectional structure diagram of the sealing sleeve of the present invention; Figure 12 It is a structure diagram of the sliding seat of the present invention.

[0019] In the figure: 1. Bending machine body; 11. Plate; 12. Control panel; 2. Bending knife; 21. Heating block; 22. Fan; 23. Air delivery pipe; 24. Tee; 25. Air storage plate; 26. Enclosure plate; 27. Stress plate; 28. Movable shaft; 29. Guide plate; 210. Spring; 3. Hydraulic cylinder; 31. Oil delivery pipe; 32. Sealing sleeve; 33. Piston plate; 34. Mounting shaft; 35. Contact rod; 36. Fixed bracket; 37. Limit block; 38. Guide rod; 4. Servo motor; 41. Rotating shaft; 42. Wire winding disc; 43. Wire; 44. Sliding seat; 45. Temperature sensor; 46. Limit rod; 47. Sliding plate; 48. Electromagnet; 49. Magnet. Detailed implementation manner

[0020] 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. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0021] In the embodiments of this application, the devices or elements indicated by or implied must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the embodiments of this application. In the description of the embodiments of this application, the meaning of "a plurality" is two or more, unless otherwise specifically and precisely defined.

[0022] Please refer to Figures 1 to 8 , the present invention provides the following technical solutions: Embodiment 1: A special-shaped steel structure intelligent bending device for airport building construction, including a bending machine body 1 with a clamping unit, a pressing unit, and a bending unit, a control panel 12 fixed on the front of the bending machine body 1, a push plate 13 installed at the output end of the bending unit, and a plate 11 for airport building to be bent. A cooling component for changing the bending degree is arranged in the bending machine body 1. The cooling component includes: a bending knife 2, a heating block 21, a fan 22, an air delivery pipe 23, a tee 24, an air storage plate 25, an enclosure plate 26, a stress plate 27, a movable shaft 28, a guide plate 29, and a spring 210; One end of the folding bending knife 2 is fixedly installed on the pressing unit. The folding bending knife 2 cooperates with the push plate 13 to bend the plate 11. The side wall of the heating block 21 is fixedly installed on the side wall of the folding bending knife 2. The heating block 21 is used to change the temperature of the folding bending knife 2 to shape the folding bending knife 2. The side wall of the blower 22 is fixedly installed on the heating block 21 through the chassis and the mounting plate. The blower 22 is used to provide a cooling medium. The side wall of the air storage plate 25 is connected to the output end of the blower 22 through the air duct 23 and the tee 24. The other side wall of the air storage plate 25 is fixed on the side wall of the folding bending knife 2. The air storage plate 25 is used to convey cold air to cool and shape the shaped folding bending knife 2. The side wall of the closing plate 26 is hinged to the air storage plate 25 through a hinge. The closing plate 26 changes the flow direction of the cold air under the drive of an external force. One end of the force-bearing plate 27 is fixedly installed on the side wall of the closing plate 26. The force-bearing plate 27 is used to change the flow rate of the cold air flowing to each closing plate 26. One end of the movable shaft 28 is movably installed on the side wall of the closing plate 26 through a bearing. The side wall of the guiding plate 29 is fixedly installed at one end of the movable shaft 28. The guiding plate 29 is used to guide the flow direction of the cold air. One end of the spring 210 is fixedly installed on the top of the guiding plate 29. The other end of the spring 210 is fixedly installed on the bottom of the connecting plate. One end of the connecting plate is fixedly installed on the side wall of the closing plate 26. The spring 210 is used to provide elastic force for resetting the guiding plate 29.

[0023] During use, the plate 11 for building airport buildings to be bent is placed into the bending machine body 1 and fixed by the clamping unit. The bending machine body 1 is started by controlling through the control panel 12, so that the pressing unit drives the folding bending knife 2 to move down and press tightly against the top of the plate 11. Subsequently, the push plate 13 is controlled to move up by the bending unit, so as to bend the plate 11 to meet the use requirements. Before bending, the heating block 21 is controlled to heat up by using the control panel 12. The folding bending knife 2 is heated by the heated heating block 21 to reach above the deformation temperature, so that the folding bending knife 2 can deform towards the initial state. The deformation angle of the folding bending knife 2 is detected by using the angle sensor installed on the bending machine body 1. After the deformation angle of the folding bending knife reaches the curvature of the plate to be produced in this shift, the heating block 21 cools down to below the deformation temperature, but still maintains a certain temperature. At the same time, the blower 22 is started by controlling through the control panel 12. The blower 22 conveys cold air into the air storage plate 25 through the air duct 23 and the tee 24. After the air enters the air storage plate 25, the pressure in the air storage plate 25 increases, so as to push the closing plate 26 outwards to Figure 7The shown open state enables cold air to flow from the closed plate 26 to the surface of the folding bending knife 2, thereby cooling the folding bending knife 2 so that the folding bending knife 2 can maintain the required angle without deformation. At the same time, when the cold air blows out from the closed plate 26, it will blow the guiding plate 29 to rotate slightly around the movable shaft 28. When the guiding plate 29 moves upward under the blowing of the cold air, the spring 210 gives the guiding plate 29 a downward elastic force, enabling the guiding plate 29 to reset, so that the guiding plate 29 can reciprocally rotate around the movable shaft 28. The reciprocally rotating guiding plate 29 is used to divert the flow direction of the cold air, enabling the cold air to spread more quickly over the surface of the folding bending knife 2, so that the folding bending knife 2 can be quickly cooled below the deformation temperature and thus maintain the required angle; Furthermore, the shape of the air storage plate 25 can be changed. An additional section is added to the side of the air storage plate 25 close to the sealing sleeve 32 facing away from the sealing sleeve 32, so that the air storage plate 25 can occupy a larger area on the surface of the folding bending knife 2, thereby making the cooling speed faster.

[0024] Please refer to Figure 4 、 Figure 5 、 Figures 9 to 11 , the present invention provides the following technical solutions: Embodiment 2, the technical solution of this embodiment different from Embodiment 1 includes: a holding component for fixing the bending degree is arranged in the bending machine body 1. The holding component includes: a hydraulic cylinder 3, an oil delivery pipe 31, a sealing sleeve 32, a piston plate 33, a mounting shaft 34, a contact rod 35, a fixing frame 36, a limiting block 37, a guiding rod 38, The bottom of the hydraulic cylinder 3 is fixedly installed in the bending machine body 1. The hydraulic cylinder 3 is used to provide power for the operation of the holding component. The top of the sealing sleeve 32 is fixedly installed on the bottom surface of the pressing unit. The sealing sleeve 32 is communicated with the hydraulic cylinder 3 through the oil delivery pipe 31. The side wall of the piston plate 33 is slidably and sealingly installed in the sealing sleeve 32. The piston plate 33 changes its position under the drive of the hydraulic cylinder 3. The piston plate 33 is used to limit the deformation range of the folding bending knife 2. One end of the contact rod 35 is movably installed at the bottom of the piston plate 33 through the mounting shaft 34. The side wall of the fixing frame 36 is fixedly installed on the folding bending knife 2. The top of the fixing frame 36 abuts against the bottom of the contact rod 35. The fixing frame 36 limits the movement of the folding bending knife 2 under the action of an external force. A through hole is provided on the fixing frame 36. Both ends of the limiting block 37 are fixedly installed in the through hole of the fixing frame 36. One end of the guiding rod 38 slidably penetrates outside the limiting block 37. One end of the guiding rod 38 slidably penetrates into the through hole of the fixing frame 36. The through hole is set to be larger than the diameter of the guiding rod 38. The top of the guiding rod 38 is fixedly installed in the bending machine body 1. The guiding rod 38 is used to support and guide the fixing frame 36.

[0025] In use, when switching the angle of the folding cutter 2, the hydraulic cylinder 3 is controlled to start synchronously through the control panel 12, and the flow direction of the hydraulic oil is adjusted according to the angle change requirement of the folding cutter 2; When the angle change requirement of the folding cutter 2 is to Figure 5 contract counterclockwise from the state shown, after controlling the hydraulic cylinder 3 to start, the hydraulic oil flows from the sealing sleeve 32 into the hydraulic cylinder 3 through the oil delivery pipe 31. Through the counterclockwise contraction deformation of the folding cutter 2, the abutting rod 35 is thus pushed to move upward. The abutting rod 35 drives the mounting shaft 34 to move upward synchronously. At the same time, the abutting rod 35 can rotate around the mounting shaft 34 as the axis to ensure that the bottom surface of the abutting rod 35 is always in close contact with the fixed frame 36. The mounting shaft 34 drives the piston plate 33 to move. Although the angle of the folding cutter 2 will change, the thickness remains unchanged. After the fixed frame 36 is stuck on the folding cutter 2, it can move with the angle change of the folding cutter 2, so that the piston plate 33 can move upward under the extrusion of the fixed frame 36 when the folding cutter 2 deforms. The piston plate 33 is hermetically connected to the sealing sleeve 32 and can slide. When the angle deformation of the folding cutter 2 reaches the target angle, the hydraulic cylinder 3 is closed, so that the hydraulic oil can no longer flow through the oil delivery pipe 31. Through the piston plate 33, the mounting shaft 34, and the abutting rod 35, a force is applied to the fixed frame 36 in turn to fix the angle of the folding cutter 2. Even if the temperature of the folding cutter 2 does not immediately drop below the deformation temperature, the angle will not continue to change; When the angle change requirement of the folding cutter 2 is to Figure 5 open clockwise from the state shown, after controlling the hydraulic cylinder 3 to start, the hydraulic oil flows from the hydraulic cylinder 3 into the sealing sleeve 32 through the oil delivery pipe 31. At this time, the fixed frame 36 also opens with the folding cutter 2. During the process, with the inflow of the hydraulic oil, the piston plate 33 is driven to move downward. The piston plate 33 drives the mounting shaft 34 and the abutting rod 35 to move downward synchronously. At the same time, the abutting rod 35 deflects around the mounting shaft 34 as the axis to maintain the state of close contact between the bottom surface and the fixed frame 36 until the folding cutter 2 moves to the required angle; Furthermore, the abutting rod 35 and the fixed frame 36 can be magnetically set so that the abutting rod 35 can always be magnetically attracted to the fixed frame 36 to ensure the stability of the connection between the abutting rod 35 and the fixed frame 36.

[0026] In another embodiment different from the foregoing embodiment, the fixed frame 36 can be changed to be telescopic, so that the fixed frame 36 can adjust the distance between the upper and lower parts of the fixed frame 36 according to the folding cutter 2 with different thicknesses, so as to adapt to folding cutters 2 of multiple models.

[0027] Please refer to Figure 2 、 Figure 6 、 Figure 12 , the present invention provides the following technical solutions: The technical solutions of this embodiment different from the foregoing embodiments include: an adjustment component for changing the cooling area is provided inside the bending machine body 1, and the adjustment component includes: a servo motor 4, a rotating shaft 41, a wire winding disc 42, a wire 43, a sliding seat 44, a temperature sensor 45, a limiting rod 46, a sliding plate 47, an electromagnet 48, and a magnet 49; The side wall of the servo motor 4 is fixedly installed inside the bending machine body 1. The servo motor 4 is used to provide power for the operation of the adjustment component. One end of the rotating shaft 41 is fixedly installed on the output end of the servo motor 4. The rotating shaft 41 is used to conduct the power output by the servo motor 4. The top of the wire winding disc 42 is fixedly installed at the bottom of the rotating shaft 41. The wire winding disc 42 rotates under the drive of the rotating shaft 41. Both ends of the wire 43 are fixedly installed on the wire winding disc 42, and the winding directions of both ends of the wire 43 are set to be opposite. One end of the sliding seat 44 slides through the bending machine body 1, and the two sides are respectively fixedly connected to both ends of the wire 43. The sliding seat 44 can slide linearly along the bending machine body 1 under the drive of the wire 43. One end of the temperature sensor 45 is fixedly installed at the bottom of the sliding seat 44. The temperature sensor 45 is used to detect the temperature of the bending knife 2. One end of the limiting rod 46 is fixedly installed inside the air storage plate 25. The sliding plate 47 is slidably sleeved on the limiting rod 46. The sliding plate 47 can slide linearly along the limiting rod 46 under the drive of an external force. One end of the electromagnet 48 is fixedly installed on the side wall of the sliding plate 47. One end of the magnet 49 is fixedly installed at one end of the force receiving plate 27. The magnet 49 is approximately concave-shaped. The magnet 49 is magnetically matched with the electromagnet 48. The magnet 49 is used to change the turning angle of the closing plate 26.

[0028] During use, when the bending knife 2 is in the process of cooling after the angle adjustment is completed, by controlling the servo motor 4 to start, the servo motor 4 drives the rotating shaft 41 to rotate Figure 12Rotate clockwise in the shown state. The rotating shaft 41 drives the wire winding disc 42 to rotate. The wire winding disc 42 drives one section of the wire 43 to wind around the wire winding disc 42, and the other section of the wire 43 is released from the wire winding disc 42, so that the wire 43 can drive the sliding seat 44 to slide linearly along the bending machine body 1. The sliding seat 44 drives the temperature sensor 45 to move, thereby measuring the temperature of the folding cutter 2 below, and transmitting the temperature measurement result back to the control panel 12. The control panel 12 adjusts the opening angle of the closing plate 26 in the cooling assembly according to the temperature measurement result. Specifically, a force receiving plate 27 is added to the closing plate 26 to provide support for the magnet 49 while guiding the cold air to flow outwards from the air storage plate 25. By activating the electromagnet 48, the magnetism between the electromagnet 48 and the magnet 49 is attracted, so that the electromagnet 48, the magnet 49, and the force receiving plate 27 form a whole. A driving element is used to drive the sliding plate 47 to move linearly along the limiting rod 46, so that the sliding plate 47 drives the combined electromagnet 48, magnet 49, force receiving plate 27, and closing plate 26 to move, so that the closing plate 26 can rotate around the hinge as the axis to adjust the opening angle, thereby guiding the cold air to blow to the area with a higher temperature, so that during the cooling process of the folding cutter 2, each area remains uniform, avoiding reducing the service life of the folding cutter 2 due to large temperature differences in each area.

[0029] In another embodiment different from the foregoing embodiment, after the folding cutter 2 drops below the deformation temperature, it still maintains a certain temperature, and after the pressing unit operates and presses on one end of the top of the steel plate 11 for a period of time, the bending unit controls the push plate 13 to push the steel plate 11 upwards for bending processing, and uses the remaining temperature of the folding cutter 2 to preheat the steel plate 11 for a short period of time, reducing the bending difficulty and the springback after bending, and improving the quality of the steel plate after bending processing.

[0030] The embodiment of the present invention also provides a bending method applicable to a special-shaped steel structure intelligent bending device for airport building construction, including the following steps: S1. Determine the required curvature according to the design requirements, start the cold zone assembly to run through the control panel, adjust the temperature of the folding cutter 2 and shape it to the required curvature; S2. During the shaping process, the holding assembly and the adjusting assembly cooperate with the cooling assembly to run, and accurately control the curvature of the folding cutter 2 after shaping; S3. Place the steel plate 11 for the airport atrium and public area to be bent on the bending machine body 1; S4. After clamping the steel plate 11 by the clamping unit, the control panel controls the pressing unit to run, so that the folding cutter 2 abuts against the top of the steel plate 11, and then controls the bending unit to drive the push plate 13 to move in cooperation with the folding cutter 2, thereby completing the bending operation; S5. Replace the next sheet 11 to be bent and convey the bent sheet 11 to the next process.

[0031] When the folding knife 2 performs the folding operation, it first contacts the sheet 11 for 10 - 30 s, and then the push plate 13 is driven by the folding machine set to move and cooperate with the folding knife 2 to bend the sheet 11.

[0032] In summary, the technical solutions disclosed in the above embodiments of the present invention have at least the following advantages: The folding knife can be automatically adjusted according to the curvature of the sheet to be bent each time, and it can be applicable to various requirements of different curvatures.

[0033] There is no need to replace different molds or tools, which improves the production flexibility, greatly reduces the preparation time, and enhances the work efficiency. Especially in the production requirements of different airport buildings with different curvatures in each functional area and small batches of multiple varieties, the production equipment can be quickly adjusted to meet different design requirements.

[0034] By immediately locking the position of the folding knife, further deformation of the folding knife can be prevented, ensuring that even when the memory metal has not completely cooled and is still in a high-temperature and high-plasticity state, it can maintain an accurate angle and shape, thus avoiding the deviation between the curvature and the designed curvature.

[0035] It helps to improve the quality and consistency of the final product.

[0036] It avoids the additional deformation of the memory metal under unexpected conditions, reduces the fatigue damage to the material caused by repeated unnecessary deformations, extends the service life of the folding knife, reduces the requirements for the cooling system, and increases its applicability in different environments.

[0037] Meanwhile, the content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0038] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0039] Parallel: The parallelism defined in this application is not limited to absolute parallelism. The definition of this parallelism can be understood as substantially parallel, allowing for situations where it is not absolutely parallel due to factors such as assembly tolerances, design tolerances, and the influence of structural flatness. Small-angle range errors are allowed. For example, within an assembly error range of less than 10 degrees, it can be understood as a parallel relationship.

[0040] Perpendicular: The perpendicularity defined in this application is not limited to an absolutely perpendicular intersection (angle of 90 degrees). It allows for a relationship where it is not an absolutely perpendicular intersection due to factors such as assembly tolerances, design tolerances, and the influence of structural flatness. Small-angle range errors are allowed. For example, within an assembly error range of 80 degrees to 100 degrees, it can be understood as a perpendicular relationship.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent bending device for special-shaped steel structures used in airport building construction, comprising a bending machine body (1) with a clamping unit, a pressing unit and a bending unit, a control panel (12) fixed to the front of the bending machine body (1), a push plate (13) installed at the output end of the bending unit, and a sheet material (11) for airport buildings to be bent, characterized in that, Inside the bending machine body (1), there are provided a cooling component for changing the bending degree, a holding component for fixing the bending degree, and an adjusting component for changing the cooling area. The cooling component includes: A bending knife (2), fixed on the pressing unit and cooperating with the push plate (13) to bend the sheet material (11). A heating block (21), fixed on the bending knife (2) to change the temperature of the bending knife (2) for shaping the bending knife (2). A blower (22), fixed on the heating block (21) through a mounting plate to provide a cooling medium. An air storage plate (25), connected to the blower (22) through an air pipe (23) and a tee joint (24) to cool and shape the shaped bending knife (2).

2. The special-shaped steel structure intelligent bending device for airport building construction according to claim 1, characterized in that The cooling component further includes: A closing plate (26), hinged on the air storage plate (25) through a hinge to change the flow direction of the cold air under the drive of an external force. A force-bearing plate (27), fixed on the side wall of the closing plate (26) to change the flow rate of the cold air.

3. The special-shaped steel structure intelligent bending device for airport building construction according to claim 2, characterized in that The cooling component further includes: A movable shaft (28), movably installed on the side wall of the closing plate (26) through a bearing. A guiding plate (29), fixed at one end of the movable shaft (28) to guide the flow direction of the cold air. A spring (210), fixed at the top of the guiding plate (29) at one end to provide elastic force for resetting the guiding plate (29).

4. An intelligent bending device for special-shaped steel structures used in airport building construction according to claim 1, characterized in that, The holding component includes: A hydraulic cylinder (3), fixed inside the bending machine body (1) to provide power for the operation of the holding component. A sealing sleeve (32), fixed at the top on the bottom surface of the pressing unit and communicated with the hydraulic cylinder (3) through an oil pipe (31). A piston plate (33), slidably and sealingly installed inside the sealing sleeve (32), changing its position under the drive of the hydraulic cylinder (3) to limit the deformation range of the bending knife (2). An abutting rod (35), movably installed at one end on the bottom of the piston plate (33) through a mounting shaft (34).

5. An intelligent bending device for special-shaped steel structures used in airport building construction according to claim 4, characterized in that, The holding component further includes: A fixing frame (36), fixed on the bending knife (2) and having its top abutting against the bottom of the abutting rod (35) to limit the movement of the bending knife (2) under the action of an external force. A limiting block (37), fixed inside the fixing frame (36). A guiding rod (38), slidably passing outside the limiting block (37) and having one end slidably passing inside the fixing frame (36) to support and guide the fixing frame (36).

6. The special-shaped steel structure intelligent bending device for airport building construction according to claim 3, wherein The adjusting component includes: A servo motor (4), fixedly installed inside the bending machine body (1) to provide power for the operation of the adjusting component. A rotating shaft (41), fixed at one end on the output end of the servo motor (4) to conduct the power output by the servo motor (4). A winding disc (42), fixed at the top on the bottom of the rotating shaft (41) and rotating under the drive of the rotating shaft (41).

7. An intelligent bending device for special-shaped steel structures used in airport building construction according to claim 6, characterized in that, The adjusting component further includes: A wire (43), fixed at both ends on the winding disc (42) and having opposite winding directions at both ends. A sliding seat (44), having one end slidably passing inside the bending machine body (1), with its two sides respectively fixed to both ends of the wire (43), and linearly sliding along the bending machine body (1) under the drive of the wire (43). A temperature sensor (45) is fixed to the bottom of the sliding seat (44) to detect the temperature of the folding and bending knife (2).

8. An intelligent bending device for special-shaped steel structures used in airport building construction according to claim 7, characterized in that, The adjustment assembly further includes: A limit rod (46) with one end fixed inside the air storage plate (25); A sliding plate (47) is slidably sleeved on the limit rod (46) and can make a linear slide along the limit rod (46) under the drive of an external force; An electromagnet (48) is fixed to the side wall of the sliding plate (47); A magnet (49) is fixed to one end of the force receiving plate (27) and is magnetically matched with the electromagnet (48) to change the flipping angle of the closing plate (26).

9. A bending method for a special-shaped steel structure intelligent bending device for airport building construction according to any one of claims 1-8, characterized in that, It includes the following steps: S1. Determine the required curvature according to the design requirements, start the operation of the cold zone assembly through the control panel, adjust the temperature of the folding and bending knife (2) and shape it to the required curvature; S2. During the shaping process, the holding assembly and the adjustment assembly cooperate with the cooling assembly to operate to precisely control the curvature of the folding and bending knife (2) after shaping; S3. Place the steel sheet (11) of the airport atrium and public area to be bent on the bending machine body (1); S4. After clamping the steel sheet (11) by the clamping unit, control the operation of the pressing unit by the control panel to make the folding and bending knife (2) press tightly against the top of the sheet (11), and then control the bending unit to drive the push plate (13) to move in cooperation with the folding and bending knife (2) to complete the bending operation; S5. Replace the next sheet (11) to be bent and convey the bent sheet (11) to the next process.

10. The bending method of a special-shaped steel structure intelligent bending device for airport building construction according to claim 9, characterized in that: When the folding and bending knife (2) performs the bending operation, it first contacts the sheet (11) for 10 - 30 s, and then the bending unit drives the push plate (13) to move in cooperation with the folding and bending knife (2) to bend the sheet (11).

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