Curved surface component machining and manufacturing system
Through reverse tire frame device and laser welding technology, combined with density identification and temperature control, the deformation problem of thin-walled stainless steel curved panels is solved during the processing process, and high-precision and low-cost processing of complex curved components is achieved.
Patent Information
- Application Number
- CN202422318014.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-23
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-09-23
AI Technical Summary
Thin-walled stainless steel curved panels are prone to deform during processing, difficult to ensure shape and position and dimensional tolerances, resulting in difficult control of processing quality. Traditional methods have problems such as limited molding capacity, high production costs and long cycles.
Reverse tire frame device and laser welding technology are adopted to precombinate the plate shape through the plate positioning structure, and precise welding is performed using laser welding devices. Combined with density identification and temperature control, the cutting and welding process is optimized, accuracy error is reduced, and deformation is controlled through external load auxiliary devices.
It improves the installation precision of complex special-shaped stainless steel sheets, reduces deformation and accuracy errors, reduces production costs and cycles, and realizes high-precision curved component processing.
Smart Images
Figure CN223084043U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of machining, and particularly to a machining and manufacturing system for curved surface components. Background Art
[0002] In the machining industry, the machining of thin-walled stainless steel curved panels is rather difficult. Due to the poor cutting performance of its material and the low rigidity of the curved panels, the curved panels are prone to deformation during the machining process. It is difficult to ensure the shape and position and dimensional tolerances of the curved panels, and it is very hard to guarantee the machining quality of the curved panels. If the machining process and solutions are inappropriate, a large number of defective products will be caused, and even the machining cannot continue. As a decorative part of the engineering structure, the high-precision large and complex curved surface stainless steel metal structure has a complex machining process, high machining precision and surface effect requirements. The machining precision of the curved panels will directly affect the assembly precision and appearance effect of the building, and even affect the structural safety of the overall building structure system.
[0003] The production method of thin-walled stainless steel curved panels usually needs to formulate the corresponding molds for the curved panels according to the design requirements of the products, put the stainless steel plates into the molds, and gradually form the stainless steel into the required curved surface shape by means of stamping, bending, stretching, etc. Then, surface treatments such as polishing, spraying, electroplating, etc. are carried out to enhance its corrosion resistance and improve its appearance quality. After production, it is necessary to conduct quality inspection on the curved panels, check the dimensional precision and surface quality of the curved panels, and the curved panels that do not meet the requirements need to be corrected or reprocessed.
[0004] However, when producing high-precision thin-walled stainless steel curved panels, it is difficult to completely control the deformation of the stainless steel plates during the machining processes such as stamping, bending, and stretching, especially when dealing with thin-walled plates, which is more obvious. This may lead to low shape precision of the curved panels, problems such as twisting and deformation, and there are technical problems with difficult deformation control. Moreover, the traditional processing methods have limited forming ability for complex curved surfaces. Some complex curved surface shapes may require multiple machining and multiple processes, increasing the production cost and cycle, and there are forming limitations. Not only that, due to the low production precision of the traditional processing methods, if the inspection is unqualified and needs to be corrected or reprocessed, it is easy to cause waste of materials. Summary of the Invention
[0005] Based on this, it is necessary to provide a machining and manufacturing system for curved surface components aiming at at least one of the above-mentioned technical problems.
[0006] This application provides a machining and manufacturing system for curved surface components, and the machining and manufacturing system for curved surface components includes:
[0007] Reverse jig device, the reverse jig device is provided with a sheet positioning structure, the sheet positioning structure forms a sheet positioning space, the sheet positioning structure of the reverse jig device is used to position and assemble a plurality of curved sheet processing parts, and the plurality of curved sheet processing parts are positioned and combined into a target processing shape based on the sheet positioning space of the sheet positioning structure. Among them, the contact position or adjacent position between adjacent curved sheet processing parts is the position to be welded;
[0008] Laser welding device, the laser welding device is used to provide a welding laser beam, the welding laser beam is used to be applied to the position to be welded, and the plurality of curved sheet processing parts are welded and fixed into a target processing shape based on the welding laser beam.
[0009] In one embodiment, the reverse jig device includes:
[0010] First splicing plate parts, the number of the first splicing plate parts is set to be several, the several first splicing plate parts are arranged in parallel with each other, and the several first splicing plate parts are arranged at intervals along the first arrangement direction;
[0011] Second splicing plate parts, the number of the second splicing plate parts is set to be several, the several second splicing plate parts are arranged in parallel with each other, and the several second splicing plate parts are arranged at intervals along the second arrangement direction;
[0012] Among them, the several first splicing plate parts and the several second splicing plate parts are perpendicular to each other, and each first splicing plate part is connected to the several second splicing plate parts, and each second splicing plate part is connected to the several first splicing plate parts;
[0013] At least a part of the upper side of at least a part of the first splicing plate parts and at least a part of the second splicing plate parts are provided with positioning notches, and the several positioning notches together constitute the sheet positioning structure, and the space in the several positioning notches constitutes the sheet positioning space of the sheet positioning structure.
[0014] In one embodiment, each first splicing plate part is provided with several first insertion slots, each second splicing plate part is provided with several second insertion slots, the several first insertion slots of each first splicing plate part are inserted and connected with the second insertion slots of the several second splicing plate parts, and the several second insertion slots of each second splicing plate part are inserted and connected with the first insertion slots of the several first splicing plate parts.
[0015] In one embodiment, the vertical distance between adjacent first splicing plate parts is the first direction interval distance, and at least a part of the several first direction interval distances formed by the several first splicing plate parts are different; and / or,
[0016] The vertical distance between adjacent second splicing plate members is the second-direction spacing distance, and at least some of the second-direction spacing distances formed by the plurality of second splicing plate members are different.
[0017] In one embodiment, at least some of the plurality of first splicing plate members have different heights, and the height of each second splicing plate member gradually changes from one end to the other end thereof. Among them, the upper sides of the plurality of first splicing plate members and the upper sides of the plurality of second splicing plate members are in a curved plane.
[0018] In one embodiment, the upper side edge of the first splicing plate member is a straight edge, and the upper side edge of the second splicing plate member is a broken line edge. Among them, the broken line edge includes a plurality of unit edge segments connected in sequence, and one unit edge segment of the broken line edge is received between each adjacent two of the first splicing plate members, and both ends of each unit edge segment of the broken line edge have the same height as the adjacent first splicing plate member that receives it.
[0019] In one embodiment, the curved surface member processing and manufacturing system includes:
[0020] A density recognition device, which is connected to the laser welding device and is used to recognize the distribution density of the positions to be welded in different area ranges of the plurality of curved sheet processing parts combined into a target processing shape;
[0021] A temperature control device, which is connected to the density recognition device and the laser welding device, and is used to adjust the welding temperature of the welding laser beam of the laser welding device in different area ranges according to the distribution density of the positions to be welded in different area ranges.
[0022] In one embodiment, as the distribution density of the positions to be welded in different area ranges gradually increases, the welding temperature of the applied welding laser beam gradually decreases.
[0023] In one embodiment, the curved surface member processing and manufacturing system includes:
[0024] An external load assisting device, which is used to apply a load acting force to at least one of the curved sheet processing parts, and the curved sheet processing part forms a bending of an expected degree based on the load acting force.
[0025] Among them, the curved sheet processing part has a concentrated area of elastic strain energy, and the laser welding device is also used to scan the concentrated area of the elastic strain energy of the curved sheet processing part, so that the elastic strain energy is converted into plastic strain energy.
[0026] In one embodiment, the reverse jig device includes:
[0027] A laser cutting device for providing a cutting laser beam to be applied to a processing raw material, and the processing raw material is cut into a plurality of the curved plate workpieces based on the cutting laser beam.
[0028] In the above curved surface member processing and manufacturing system, the deformation control of the curved plate workpiece is implemented based on the reverse jig device. Through the simulation and analysis of the predicted deformation in the early stage, the cutting and welding processes can be optimized, which is convenient for controlling the welding quality. At the same time, it is convenient for the later correction and adjustment of the overall structure to reduce the precision error. And compensation measures are taken for special parts, and appropriate forces are applied at the required positions to offset the deformation, so as to maintain the original shape of the curved plate workpieces such as complex-shaped stainless steel thin plates, and improve the installation precision of the complex-shaped stainless steel thin plates. Description of the Drawings
[0029] Figure 1 Schematic diagram of the usage state of the reverse jig device provided by an embodiment of the present application;
[0030] Figure 2 Partial structural schematic diagram of the reverse jig device provided by an embodiment of the present application with a plate positioning structure provided therein.
[0031] Reference Numerals in the Drawings:
[0032] 100, curved plate workpiece;
[0033] 1000, reverse jig device; 2000, plate positioning structure;
[0034] 1100, first splicing plate member; 1200, second splicing plate member;
[0035] 1110, straight side; 1210, folded side;
[0036] 2100, plate positioning space. Detailed Description of the Embodiment
[0037] To make the above objects, features, and advantages of the present application more obvious and understandable, the following describes the specific embodiments of the present application in detail with reference to the drawings. Many specific details are set forth in the following description to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.
[0038] In the description of the present application, it should be understood that if there are terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., the orientation or positional relationship indicated by these terms is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.
[0039] In addition, if there are terms such as "first" and "second", these terms are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, if there is a term "plurality", the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.
[0040] In the present application, unless otherwise clearly specified and limited, if there are terms such as "mounted", "connected", "connected to", "fixed", etc., these terms should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.
[0041] In the present application, unless otherwise clearly specified and limited, if there is a description such as a first feature being "on" or "under" a second feature, the meaning may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on" the second feature may mean that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "under" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.
[0042] It should be noted that if an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there may be an intermediate element. If an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are only for the purpose of illustration and do not represent the only implementation.
[0043] Referring to Figure 1 and Figure 2 As shown, the present application provides a curved surface component processing and manufacturing system, which includes a reverse jig device and a laser welding device. Among them, since the linear change of curved sheet metal workpieces such as complex-shaped stainless steel thin sheets is large and the processing form is relatively complex, in order to facilitate the processing of curved sheet metal workpieces, the complex-shaped stainless steel thin sheets can be processed and assembled in sections in this application. However, during the segment welding process, it is difficult to control the thermal deformation caused by thermal processing. Therefore, in order to facilitate the control of welding quality and at the same time facilitate the later correction and adjustment of the overall structure to reduce the precision error, the curved surface component processing and manufacturing system of the present application provides the above-mentioned reverse jig device. The reverse jig device adopts a reverse design, which can make the complex-shaped stainless steel thin sheet be inverted on the reverse jig device, facilitating welding and reinforcement from above.
[0044] In one embodiment, a sheet metal positioning structure may be provided above the reverse jig device. The sheet metal positioning structure forms a sheet metal positioning space. For example, the above-mentioned sheet metal positioning structure can be constructed on the reverse jig device by means of opening a notch or erecting components, etc., so that the sheet metal positioning structure can form a sheet metal positioning space. The sheet metal positioning structure of the reverse jig device is used to position and assemble a number of curved sheet metal workpieces, aiming to fix a number of curved sheet metal workpieces on the reverse jig device at a specific angle, orientation, etc., so that a number of curved sheet metal workpieces can be positioned and combined into a target processing shape based on the sheet metal positioning space of the sheet metal positioning structure.
[0045] In short, several curved plate workpieces are pre - assembled into the desired processing shape to be welded by the above - mentioned reverse jig device. After the positioning and combination of several curved plate workpieces are completed, contact may occur between adjacent curved plate workpieces, or welding gaps that are very small and suitable for welding connection may be formed. Therefore, the contact position or adjacent position between adjacent curved plate workpieces can be used as the position to be welded. At this time, it is convenient to implement the welding process on several curved plate workpieces, finally welding and fixing several curved plate workpieces to complete the processing and manufacturing of the curved surface component. At this time, a laser welding device can be used to provide a welding laser beam, and the welding laser beam is used to be applied to the position to be welded, and several curved plate workpieces are welded and fixed into the target processing shape based on the welding laser beam.
[0046] The reverse jig device can be composed of various forms such as plate splicing and column splicing. For example, in one embodiment, the reverse jig device includes a first splicing plate and a second splicing plate. The number of the first splicing plates is set to several, and the number of the second splicing plates is set to several. Several first splicing plates are arranged parallel to each other, and several first splicing plates are arranged at intervals along the first arrangement direction. Several second splicing plates are arranged parallel to each other, and several second splicing plates are arranged at intervals along the second arrangement direction. In one embodiment, the vertical distance between adjacent first splicing plates is the first - direction interval distance, and at least a part of the several first - direction interval distances formed by several first splicing plates are different. For example, adjacent first splicing plates can be arranged at intervals in sequence in the first arrangement direction according to design requirements, and no limitation is made here. Similarly, the vertical distance between adjacent second splicing plates is the second - direction interval distance, and at least a part of the several second - direction interval distances formed by several second splicing plates are different. For example, adjacent second splicing plates can be arranged at intervals in sequence in the second arrangement direction according to design requirements, and no limitation is made here.
[0047] Among them, several first splicing plates and several second splicing plates are perpendicular to each other, and each first splicing plate is connected to several second splicing plates, and each second splicing plate is connected to several first splicing plates. Through the mutual perpendicular splicing between several first splicing plates and several second splicing plates, a reverse jig device that can be used for reverse positioning of complex - shaped stainless - steel thin plates can be jointly assembled.
[0048] After a number of first splicing plate members and a number of second splicing plate members are perpendicularly spliced with each other, a number of quadrilateral spaces can be formed within the reverse jigging device. At this time, the upper sides of the number of first splicing plate members and the number of second splicing plate members are the upper part of the reverse jigging device, and the upper sides of the number of first splicing plate members and the number of second splicing plate members are used for buckling complex-shaped stainless steel thin plates. In one embodiment, positioning notches are provided on the upper sides of at least a part of the first splicing plate members and at least a part of the second splicing plate members. The shape of the positioning notch can be triangular, thereby forming a triangular plate positioning space, or the shape of the positioning notch can also be various regular or irregular shapes such as quadrilateral, pentagon, etc., thereby forming various regular or irregular plate positioning spaces such as quadrilateral, pentagon, etc. Therefore, a number of positioning notches can jointly form a plate positioning structure, and the spaces within the number of positioning notches are used to form the plate positioning space of the plate positioning structure.
[0049] A number of first splicing plate members and a number of second splicing plate members can be perpendicularly spliced with each other in various ways such as plugging, bonding, threaded connection, etc. For example, in one embodiment, each first splicing plate member is provided with a number of first plugging slots, each second splicing plate member is provided with a number of second plugging slots, the number of first plugging slots of each first splicing plate member is plugged and connected with the second plugging slots of the number of second splicing plate members, and the number of second plugging slots of each second splicing plate member is plugged and connected with the first plugging slots of the number of first splicing plate members. The first splicing plate member or the second splicing plate member can be made of galvanized steel plate with a thickness of 2 mm. After being plugged and connected with each other, the structural form can be made more firm and stable.
[0050] Among them, the first plugging slots of the number of first splicing plates can be provided on the upper side of the first splicing plates, and the second plugging slots of the number of second splicing plates can be provided on the lower side of the second splicing plates, so that the second splicing plates are plugged into the first splicing plates from above the first splicing plates. Or, the first plugging slots of the number of first splicing plates can be provided on the lower side of the first splicing plates, and the second plugging slots of the number of second splicing plates can be provided on the upper side of the second splicing plates, so that the first splicing plates are plugged into the first splicing plates from above the second splicing plates. This is not limited here.
[0051] In one embodiment, at least a part of the heights of several first splicing plate members are different, and the height of each second splicing plate member gradually changes from one end to the other end thereof. Therefore, when several first splicing plate members and several second splicing plate members are spliced, the upper side edges of the several first splicing plate members and the upper side edges of the several second splicing plate members will form a mutual adaptation in height, so that the upper side edges of the several first splicing plate members and the upper side edges of the several second splicing plate members can be connected to form a top surface. For example, the upper side edges of the several first splicing plate members and the upper side edges of the several second splicing plate members are in a curved plane.
[0052] In one embodiment, the upper side edge of the first splicing plate member is a straight side edge, and the upper side edge of the second splicing plate member is a broken line side edge. Among them, the broken line side edge includes several successively connected unit side edge segments. One unit side edge segment of the broken line side edge is accommodated between each adjacent two first splicing plate members, and the two ends of each unit side edge segment of the broken line side edge have the same height as the adjacent first splicing plate member that accommodates it. Therefore, the top surface formed by the upper side edges of the several first splicing plate members and the upper side edges of the several second splicing plate members can be a bent surface formed as the height of the several first splicing plate members changes.
[0053] The manufacture of the reverse jig device needs to ensure precision control. First of all, the overall dimensions of the reverse jig device must meet the requirements of being linearly flat. Through accurate measurement and precise manufacturing process, the dimensions of the reverse jig device can be guaranteed to be consistent with the design scheme. Secondly, in order to ensure that the reverse jig device meets the requirements of compressive resistance and durability, the surface of the reverse jig device should be flat and smooth without protrusions or depressions. In addition, when manufacturing the reverse jig device, the inspection of gaps must be carried out. If there are gaps, it will affect the quality of the reverse jig device and cause dimensional errors. In this regard, the connection state between the first splicing plate member and the second splicing plate member of the reverse jig device should be carefully inspected to ensure that it can meet the design requirements.
[0054] When manufacturing the reverse jig device, first, the projection lines of the reverse jig device on the ground need to be drawn, including the center line, reference line, etc. Then, the longitudinal and transverse compensation values also need to be determined to ensure the accuracy of the final dimensions of the reverse jig device. During the manufacturing process, special attention should be paid to the fitting degree between the first splicing plate member and the second splicing plate member to ensure the tight and reliable connection between them. At the same time, the perpendicularity of the reference line and the dimensions of the reverse jig device also need to be checked to ensure the accuracy and precision of the structural marking. In the case of a longer segment, anti-deformation compensation also needs to be carried out to prevent the segment from deforming during transportation and welding.
[0055] To ensure the overall structure of the reverse jig device is firm and stable, it is necessary to control the welding sequence and parameters. In the welding process, attention should be paid to controlling the perpendicularity of the first splicing plate and the second splicing plate. During the cutting of the first splicing plate, the segmented allowance should be considered to avoid subsequent trimming work. At the same time, the butt gap between each structure should be well controlled to minimize the occurrence of welding shrinkage deformation. The baseline needs to be measured and adjusted to control the deflection of the baseline.
[0056] For some special parts of complex shaped stainless steel thin plates, such as sections with a large curvature, anti-deformation measures also need to be taken and correction should be carried out after welding. In addition, the inspection standards for segmented welding need to be clarified, and the installation dimensions at key positions and the height reference for the completion of closure should be inspected to ensure that the quality meets the requirements.
[0057] Using the reverse jig device to implement deformation control for curved sheet metal workpieces, through the simulation and analysis of predicted deformation in the early stage, the cutting and welding processes can be optimized, which is convenient for controlling the welding quality and also facilitates the subsequent correction and adjustment of the overall structure to reduce the precision error. And compensation measures are taken for special parts, and appropriate forces are applied at the required positions to offset the deformation, which can maintain the original shape of curved sheet metal workpieces such as complex shaped stainless steel thin plates and improve the installation precision of complex shaped stainless steel thin plates.
[0058] In one embodiment, the curved surface component processing and manufacturing system may further include a density recognition device and a temperature control device. The density recognition device is connected to the laser welding device. The density recognition device can use image recognition equipment such as a camera to identify the distribution density of the positions to be welded in different area ranges of several curved sheet metal workpieces combined into a target processing shape. That is, after several curved sheet metal workpieces are combined into a target processing shape, several positions to be welded will be formed between the several curved sheet metal workpieces, and the several positions to be welded will be randomly distributed in different area ranges of the several curved sheet metal workpieces. For the area range with a larger distribution quantity, it can be considered that its distribution density is larger, and for the area range with a smaller distribution quantity, it can be considered that its distribution density is smaller.
[0059] At this time, the temperature control device can be connected to the density recognition device and the laser welding device. The temperature control device is used to adjust the welding temperature of the welding laser beam of the laser welding device in different area ranges according to the distribution density of the positions to be welded in different area ranges. For example, as the distribution density of the positions to be welded in different area ranges gradually increases, the welding temperature of the applied welding laser beam gradually decreases.
[0060] In one embodiment, since the corrugated plate of the stainless-steel thin plate has a certain curvature, and the stainless-steel thin plate is thin and has low rigidity, it is prone to deformation during welding. To obtain high-quality welded joints, it is necessary to minimize the heat input while ensuring penetration. Therefore, low heat input welding should be used for the parts with high density at the welding positions (such as welds), and high heat input welding should be maintained for the parts with low density at the welding positions (such as welds).
[0061] During the welding process, it is necessary to pay attention to observing the deformation of the edge of the stainless-steel thin plate. If the welding effect of the stainless-steel thin plate joint is poor, the welding should be stopped, and the welding equipment and the edge of the steel plate should be checked. If necessary, re-cutting and welding are required. In addition, a shielding gas should be used throughout the welding process. CO2 can be used as the shielding gas for laser welding. It can not only reduce the risk of excessive heat input concentration during the laser welding process but also prevent oxygen in the air from affecting the welding and fusion of the edge of the stainless-steel thin plate, ensuring good weld formation.
[0062] In one embodiment, the curved surface component processing and manufacturing system includes an external load assisting device, which is used to apply a load acting force to at least one curved plate workpiece. The curved plate workpiece forms a desired degree of bending based on the load acting force. Among them, the curved plate workpiece has a concentrated area of elastic strain energy. The laser welding device is also used to scan the concentrated area of elastic strain energy of the curved plate workpiece, so that the elastic strain energy is converted into plastic strain energy.
[0063] The external load assisting device can be used to preload the curved plate workpiece within the elastic range to make the curved plate workpiece bend. Then, a laser beam with a certain intensity is used to scan the concentrated area of elastic strain energy on the curved plate workpiece, so that the temperature in this area rises and the yield strength decreases, promoting the conversion of the elastic strain energy in the curved plate workpiece into plastic strain energy to achieve forming. Among them, elastic strain energy refers to the energy stored in a material when it can return to its original state after being deformed by an external force. Plastic strain energy refers to the energy stored in a material when it cannot completely return to its original state after being deformed by an external force.
[0064] This forming mechanism is different from the mechanism of direct laser bending forming, which completely relies on the formation of an uneven temperature field on the surface of the curved plate workpiece by laser irradiation to generate thermal stress for forming. Compared with direct laser bending forming, this forming method can not only significantly increase the deformation amount of a single laser scan but also better control the bending direction of the curved plate workpiece. Since the mechanical loading of the curved plate workpiece is within the elastic range, and the plastic strain obtained by the curved plate workpiece during the forming process is transformed from elastic strain, it is possible to avoid forming defects such as microcracks and slip lines caused by plastic loading, and the springback of the formed part is small, the forming accuracy is high, and the process repeatability is good, which can greatly improve the bending plastic deformation of the plate.
[0065] In one of the embodiments, the reverse jig device includes a laser cutting device. The laser cutting device is used to provide a cutting laser beam, and the cutting laser beam is used to be applied to the raw processing material. The raw processing material is cut into several curved sheet metal workpieces based on the cutting laser beam. When cutting the curved sheet metal workpieces by using a laser, compared with cutting the curved sheet metal workpieces by a plasma arc, the cutting efficiency of the cutting laser beam is higher, the heat source is more concentrated, the stress generated during the cutting process is smaller, and the heat residue is less. Therefore, the edge cut of the stainless steel thin sheet after cutting is smooth, which is convenient for subsequent splicing and welding. Among them, laser cutting refers to a processing method that uses a cutting laser beam to cut materials into the required shapes, heating the surface of the workpiece with a high-energy light beam to locally melt or vaporize the material.
[0066] The curved surface component processing and manufacturing system proposed by the above technical solution can be used to implement the processing and manufacturing process of high-precision complex curved stainless steel building skins. The processing of the stainless steel plate components proposed involves multiple processes such as multi-curved intersection line cutting, small-curvature thin plate bending, large-section thin plate bending, laser cutting, welding, and 4K polishing. Compared with the traditional processing technology of stainless steel curved panels, the curved surface component processing and manufacturing system can adopt an adaptive fine processing technology. Through the methods of cutting, installing, and accurately positioning by a three-dimensional reverse jig device and the laser bending forming technology assisted by external load forces, the forming of three-dimensional free complex curved thin plates is realized, and the precise processing of large-sized special-shaped curved stainless steel metal plate components is achieved.
[0067] The above process can be carried out for numerical control cutting processing according to a three-dimensional model, avoiding manual lofting. Strictly control the welding and grinding processes according to process parameters, develop molds for positioning and sizing the components, and standardize the assembly of complex special-shaped components, which can accurately control the deformation of the stainless steel plate components and avoid problems such as shape distortion and deformation of the curved panel components.
[0068] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.
[0069] The above-described embodiments only represent several implementation manners of the present application. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.
Claims
1. A curved surface component processing and manufacturing system, characterized in that, The surface component processing and manufacturing system includes: A reverse jig device, the reverse jig device is provided with a plate positioning structure, the plate positioning structure forms a plate positioning space, and the plate positioning structure of the reverse jig device is used for positioning and assembling a plurality of curved plate workpieces. A plurality of the curved plate workpieces are positioned and combined into a target processing shape based on the plate positioning space of the plate positioning structure. Wherein, the contact position or adjacent position between adjacent curved plate workpieces is a position to be welded; A laser welding device, the laser welding device is used to provide a welding laser beam, and the welding laser beam is used to be applied to the position to be welded. A plurality of the curved plate workpieces are welded and fixed into a target processing shape based on the welding laser beam.
2. The curved surface component processing and manufacturing system according to claim 1, wherein The reverse jig device includes: A first splicing plate member, the number of the first splicing plate members is set to be a plurality, a plurality of the first splicing plate members are arranged in parallel with each other, and a plurality of the first splicing plate members are arranged at intervals along a first arrangement direction; A second splicing plate member, the number of the second splicing plate members is set to be a plurality, a plurality of the second splicing plate members are arranged in parallel with each other, and a plurality of the second splicing plate members are arranged at intervals along a second arrangement direction; Wherein, a plurality of the first splicing plate members and a plurality of the second splicing plate members are perpendicular to each other, and each first splicing plate member is connected to a plurality of the second splicing plate members, and each second splicing plate member is connected to a plurality of the first splicing plate members; At least a part of the upper sides of at least a part of the first splicing plate members and at least a part of the second splicing plate members are provided with positioning notches, and a plurality of the positioning notches together constitute the plate positioning structure, and the space in a plurality of the positioning notches constitutes the plate positioning space of the plate positioning structure.
3. The surface member processing and manufacturing system according to claim 2, characterized in that, Each first splicing plate member is provided with a plurality of first insertion slots, each second splicing plate member is provided with a plurality of second insertion slots, a plurality of the first insertion slots of each first splicing plate member are inserted and connected with the second insertion slots of a plurality of the second splicing plate members, and a plurality of the second insertion slots of each second splicing plate member are inserted and connected with the first insertion slots of a plurality of the first splicing plate members.
4. The curved surface component processing and manufacturing system according to claim 2, characterized in that, The vertical distance between adjacent first splicing plate members is a first direction interval distance, and at least a part of a plurality of the first direction interval distances formed by a plurality of the first splicing plate members are different; and / or, The vertical distance between adjacent second splicing plate members is a second direction interval distance, and at least a part of a plurality of the second direction interval distances formed by a plurality of the second splicing plate members are different.
5. The curved surface component processing and manufacturing system according to claim 2, characterized in that The heights of at least a part of a plurality of the first splicing plate members are different, and the height of each second splicing plate member gradually changes from one end to the other end. Wherein, the upper sides of a plurality of the first splicing plate members and the upper sides of a plurality of the second splicing plate members are in a curved plane.
6. The curved surface member processing and manufacturing system according to claim 5, wherein The upper side of the first splicing plate member is a straight side, and the upper side of the second splicing plate member is a folded side. Among them, the folded side includes a plurality of unit side segments connected in sequence. One unit side segment of the folded side is accommodated between every two adjacent first splicing plate members, and the two ends of each unit side segment of the folded side are at the same height as the adjacent first splicing plate member that accommodates it.
7. The curved surface component processing and manufacturing system according to claim 1, wherein The curved surface member processing and manufacturing system includes: A density recognition device, which is connected to the laser welding device and is used to recognize the distribution density of the positions to be welded in different area ranges of a plurality of the curved sheet material processing parts combined into a target processing shape. A temperature control device, which is connected to the density recognition device and the laser welding device and is used to adjust the welding temperature of the welding laser beam of the laser welding device in different area ranges according to the distribution density of the positions to be welded in different area ranges.
8. The curved surface component processing and manufacturing system according to claim 7, characterized in that, As the distribution density of the positions to be welded in different area ranges gradually increases, the welding temperature of the applied welding laser beam gradually decreases.
9. The curved surface component processing and manufacturing system according to claim 1, wherein The curved surface member processing and manufacturing system includes: An external load assisting device, which is used to apply a load acting force to at least one of the curved sheet material processing parts, and the curved sheet material processing part forms a bending of an expected degree based on the load acting force. Among them, the curved sheet material processing part has a concentrated area of elastic strain energy, and the laser welding device is also used to scan the concentrated area of elastic strain energy of the curved sheet material processing part so that the elastic strain energy is converted into plastic strain energy.
10. The curved surface member processing and manufacturing system according to claim 1, wherein The reverse jig device includes: A laser cutting device, which is used to provide a cutting laser beam, and the cutting laser beam is used to be applied to the processing raw material, and the processing raw material is cut into a plurality of the curved sheet material processing parts based on the cutting laser beam.