Arc-shaped artificial board structure and parameterized numerical control milling machine system

Abstract

The utility model discloses an arc artificial board structure and parameterization numerical control milling machine system, include: arc plate body, its by a plurality of unit board material fixedly connected each other and through bending process integrally formed as the arc structure with target curvature, stress release structure is set up on every unit board material a plurality of vertical distribution's long and narrow hole, and the form, size and distribution density of long and narrow hole are configured to allow unit board material to adapt target curvature in bending process, and be compatible with unit board material's material quality and thickness parameter, decoration structure is the notched that is formed through numerical control milling machine on each unit board material surface milling, makes the notched as bending stress release channel simultaneously, two flat plate spare, fixedly connected respectively in the both ends of arc plate body, make the board surface of flat plate spare and the tangent plane of arc plate body end portion flush. Solve the problem that traditional craft is difficult to synchronous forming of decorative pattern and arc structure and leads to the plate deformation, surface defect and figure distortion.

Description

Technical Field

[0001] This utility model relates to the field of artificial board processing technology, and in particular to an arc-shaped artificial board structure and a parametric CNC milling machine system. Background Technology

[0002] Curved panels, due to their unique visual effect and sense of spatial extension, have wide applications in architectural decoration, furniture manufacturing, and commercial space design. Traditional processes such as kerf bending and high-frequency molding have significant limitations: on the one hand, pre-grooving can damage the integrity of decorative patterns on the panel surface, leading to graphic deformation in the curved areas; on the other hand, mold forming methods are difficult to adapt to the needs of small-batch customized production and cannot achieve simultaneous forming of complex decorative patterns and precise curvature. These process defects often result in quality problems such as bulges and orange peel on the panel surface, seriously affecting the product's aesthetics and structural reliability. In existing technologies, the bending and forming of decorative panels often faces the contradiction of balancing mechanical properties and aesthetic effects. The processing of decorative patterns is usually independent of the structural forming process, which not only increases production costs but may also lead to a loss of material mechanical properties. Utility Model Content

[0003] To address the shortcomings of the existing technology, this utility model provides an arc-shaped artificial board structure and a parametric CNC milling machine system to solve the problems of board deformation, surface defects, and graphic distortion caused by the difficulty in synchronously forming decorative graphics and arc-shaped structures in traditional processes.

[0004] This utility model is achieved using the following technical solution:

[0005] An arc-shaped artificial board structure, comprising:

[0006] The curved plate body is formed by fixing multiple unit plates together and bending them into an integral curved structure with a target curvature.

[0007] The stress relief structure consists of a plurality of vertically distributed elongated holes on each of the unit plates, the shape, size and distribution density of which are configured to allow the unit plates to adapt to the target curvature during the bending process and to be compatible with the material and thickness parameters of the unit plates.

[0008] The decorative structure is a groove formed by milling on the surface of each unit plate by a CNC milling machine, so that the groove also serves as a channel for relieving bending stress.

[0009] Two flat plates are fixedly connected to both ends of the curved plate body, so that the surface of the flat plate is flush with the cut surface of the end of the curved plate body.

[0010] Furthermore, the distribution density and depth of the slots and the distribution density and size of the elongated holes are set collaboratively based on the target curvature.

[0011] Furthermore, the elongated hole is one of an oblong, rectangular, or elliptical shape, with its major axis perpendicular to the bending direction of the unit plate.

[0012] Furthermore, the groove is one of a V-groove, a U-groove, or a rectangular groove.

[0013] Furthermore, the grooves of multiple unit panels together form decorative patterns of wave patterns or geometric arrays.

[0014] Furthermore, multiple unit panels are fixedly connected into a whole structure by adhesive bonding or mechanical connection.

[0015] Furthermore, the fixed connection is at least one of adhesive bonding, screw connection, or tenon and mortise connection.

[0016] Furthermore, the fixed connection is a mortise and tenon connection, with a tenon or mortise at the end of the curved plate body and a corresponding mortise or tenon at the end of the flat plate.

[0017] Furthermore, the material of the unit board is one of wood-based engineered wood, plastic-based composite material, or metal-based composite material.

[0018] A parametric CNC milling machine system for producing the above-mentioned curved artificial board structure includes:

[0019] CNC milling machine, equipped with a milling spindle;

[0020] The control unit is communicatively connected to the CNC milling machine;

[0021] The parameter database stores a set of milling parameters corresponding to various target curvatures, sheet materials, and thicknesses. The set of milling parameters includes the shape, spacing, depth, and V-groove angle of the slot.

[0022] The control unit is configured to: receive target curvature, sheet material and thickness parameters; retrieve or calculate a corresponding milling parameter set from the parameter database based on the received parameters; and control the CNC milling machine to mill the decorative structure on the unit sheet according to the milling parameter set.

[0023] Compared with the prior art, the beneficial effects of this utility model include at least the following:

[0024] This invention utilizes multiple unit plates that are fixed together and then bent into a single shape. This ensures precise control of the target curvature and reduces bending stress in individual plates through a segmented structure. The elongated holes in the unit plates serve as stress-relieving structures. The vertical distribution, size, and density of these holes are designed to match the target curvature, allowing for directional stress release during bending and preventing localized cracking or springback. The grooves in the decorative structure are formed by CNC milling, with their distribution density and depth coordinated with the elongated holes. This transforms the decorative drawing into a bending stress-relieving channel, achieving a unity of aesthetics and mechanics while enhancing structural plasticity. Two flat plates are connected to the ends of the curved plate body. These flat plates provide support or structural expansion. The flush connection between the flat plate surfaces and the cut surfaces at the ends of the curved plate body ensures assembly accuracy and interface stability, providing a standardized connection basis for subsequent applications. By employing parametric milling and bending processes, high-precision forming of curved engineered wood panels is achieved, while simultaneously ensuring lightweight construction and structural strength. This effectively solves the problems of panel deformation, surface defects, and graphic distortion caused by the difficulty in simultaneously forming decorative patterns and curved structures in traditional processes. Attached Figure Description

[0025] Figure 1 This is one of the schematic diagrams of an arc-shaped artificial board structure according to an embodiment of this utility model;

[0026] Figure 2 This is a second schematic diagram of an arc-shaped artificial board structure according to an embodiment of this utility model;

[0027] Figure 3 This is an exploded view of an arc-shaped artificial board structure according to an embodiment of the present utility model;

[0028] In the diagram: 1. Curved panel body; 11. Unit panel; 12. Narrow hole; 13. Groove; 2. Flat panel. Detailed Implementation

[0029] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided to make the present invention more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore repeated descriptions of them will be omitted.

[0030] The terms used to describe position and direction in this utility model are illustrated with the accompanying drawings, but changes can be made as needed, and all such changes are included within the scope of protection of this utility model.

[0031] like Figures 1 to 3As shown, this utility model provides an arc-shaped artificial board structure, comprising:

[0032] The curved plate body 1 is formed by fixing multiple unit plates 11 together and forming an integral curved structure with a target curvature through a bending process.

[0033] The stress relief structure consists of a plurality of vertically distributed elongated holes 12 disposed on each of the unit plates 11. The shape, size and distribution density of the elongated holes 12 are configured to allow the unit plate 11 to adapt to the target curvature during the bending process and to be compatible with the material and thickness parameters of the unit plate 11.

[0034] The decorative structure is a groove 13 formed by milling on the surface of each unit plate 11 by a CNC milling machine, so that the groove 13 also serves as a bending stress relief channel.

[0035] Two flat plate pieces 2 are fixedly connected to both ends of the arc-shaped plate body 1, so that the surface of the flat plate piece 2 is flush with the cut surface of the end of the arc-shaped plate body 1.

[0036] In this embodiment, multiple unit plates 11 are spliced ​​together to form a continuous surface. When integrally formed by bending, the elongated holes 12 allow the plates to undergo controllable deformation along the bending direction, avoiding local stress concentration. The CNC-milled grooves 13 form decorative patterns on the surface, and their depth and spacing, along with the holes below, form a synergistic stress-relieving network. During bending, the elongated holes 12 absorb longitudinal tensile stress, while the grooves 13 alleviate surface compressive stress. Together, they prevent the plates from cracking, effectively solving the problems of plate deformation, surface defects, and graphic distortion caused by the difficulty in simultaneously forming decorative patterns and curved structures in traditional processes.

[0037] In the above structure, the curved plate body 1 is formed by bending multiple unit plates 11 together, which ensures precise control of the target curvature and reduces the bending stress of individual plates through the segmented structure. The narrow holes 12 of the unit plates 11 serve as stress relief structures. The vertical distribution, size, and distribution density of the narrow holes 12 are designed to match the target curvature, allowing for directional stress relief during bending and preventing local cracking or springback. The grooves 13 of the decorative structure are formed by CNC milling, and their distribution density and depth are coordinated with the narrow holes 12, transforming the decorative drawing into a bending stress relief channel. This not only achieves a unity of aesthetics and mechanics but also enhances the plasticity of the structure. By connecting two flat plates 2 to the ends of the curved plate body 1, the flat plates 2 can provide support or expand the structural function. The connection method, where the surface of the flat plates 2 is flush with the cut surface of the ends of the curved plate body 1, ensures the assembly accuracy and interface stability of the overall structure, providing a standardized connection basis for subsequent applications. The parametric control of the CNC milling machine further realizes the precise matching of the slot 13 and the hole, which solves the conflict between the difficulty of synchronizing decoration and curvature in traditional processes.

[0038] This invention achieves high-precision forming of curved artificial boards through parametric milling and bending processes, while taking into account both lightweight and structural strength. It significantly improves the splicing reliability and assembly efficiency of the curved board body 1 and the flat board 2, providing reliable support for innovative design of furniture and architectural interiors.

[0039] In a preferred embodiment, the distribution density and depth of the slot 13 and the distribution density and size of the elongated hole 12 are set collaboratively based on the target curvature.

[0040] In this embodiment, the decorative function and mechanical performance are integrated and optimized by associating the parameters of the decorative structure and the stress-relieving structure. Specifically, the distribution density and depth parameters of the slots 13 are no longer set independently, but rather form a matching relationship with the distribution density and size parameters of the elongated holes 12 in the stress-relieving structure based on the target curvature. This collaborative setting allows the spatial arrangement of the slots 13 to complement the mechanical properties of the stress-relieving holes while forming the surface pattern. The parameter coupling relationship between the two jointly regulates the stress distribution during the bending process. This parameter coordination mechanism based on the target curvature ensures the visual continuity of the decorative pattern after bending and avoids pattern distortion caused by localized stress concentration through the synergistic effect of the composite stress-relieving channels.

[0041] In a preferred embodiment, the elongated hole 12 is one of an oblong, rectangular, or elliptical shape, with its major axis perpendicular to the bending direction of the unit plate 11.

[0042] In this embodiment, by defining the elongated hole 12 as an oblong, rectangular, or elliptical shape, a uniform and continuous stress dispersion path can be formed, avoiding stress concentration caused by sharp edges. Simultaneously, setting the long axis of the elongated hole 12 perpendicular to the bending direction allows the hole 12 to generate deformation space along the direction of maximum strain during plate bending, thus absorbing bending stress through the extensibility of the long axis of the hole 12. This invention, by defining the geometric shape and directional layout of the elongated hole 12, achieves a synergistic adaptation between stress release and the bending process, ensuring both the degree of freedom of deformation during plate bending and maintaining the overall structural strength of the plate. This achieves the target curvature while preventing distortion of decorative drawings due to material deformation.

[0043] It should be noted that the elongated hole 12 is not limited to the shapes listed above, but can also be other geometric shapes, such as S-shaped.

[0044] In a preferred embodiment, the groove 13 is one of a V-groove, a U-groove, or a rectangular groove.

[0045] In this embodiment, by defining the specific shape of the groove 13 as a V-shaped, U-shaped, or rectangular groove, suitable stress relief channels and decorative effects can be provided for different bending process requirements. Specifically, the V-shaped groove achieves localized stress concentration release through sharp angles, while simultaneously forming three-dimensional decorative lines; the U-shaped groove reduces the risk of cracking in stress concentration areas through a smooth transition, making it suitable for high-curvature sheets; and the rectangular groove balances milling efficiency with the impact of the groove depth on structural strength through its regular geometric shape. The selection of the three groove types depends on the sheet material, target curvature, and decorative design requirements. While ensuring bending accuracy, the stress relief function is integrated with the decorative graphic form, avoiding the problems of decorative pattern deformation or structural damage in traditional processes.

[0046] It should be noted that the shape of the slot 13 is not limited to the above-listed shapes, but can also be other shapes, such as W-shaped slots, without specific limitations here.

[0047] In a preferred embodiment, the grooves 13 of the multiple unit plates 11 together form a decorative pattern of wave patterns or geometric arrays.

[0048] In this embodiment, since the slots 13 serve as both decorative elements and bending stress relief channels, their distribution pattern corresponds spatially to the bending stress field. The continuous, gradually changing arrangement of the wave pattern adapts to the stress gradient distribution in areas of varying curvature, while the uniformly spaced geometric array is suitable for uniform stress relief in areas of equal curvature. By decomposing the decorative pattern into local slot 13 structures on the unit sheet 11, not only is the integrity and visual continuity of the decorative pattern maintained after bending, but the stress relief effect of each slot 13 is also adapted to the target curvature requirement, thus achieving a unity between aesthetics and mechanics. It should be noted that the decorative pattern formed by the slots 13 of multiple unit sheet 11 in this embodiment is not limited to those listed above; the decorative pattern can be designed according to actual needs.

[0049] In a preferred embodiment, multiple unit panels 11 are fixedly connected to form an integral structure by adhesive bonding or mechanical connection.

[0050] In this embodiment, multiple unit panels 11 are fixed together by adhesive bonding or mechanical connection. Adhesive bonding creates a uniform stress transfer interface between the unit panels 11, preventing misalignment or cracking caused by localized stress concentration. The adhesive layer can also undergo slight deformation during the bending process to adapt to the target curvature. Mechanical connection methods (such as screws or tenons) enhance the shear resistance at the connection point through physical locking, preventing relative displacement between the unit panels 11 during bending. The combination of these two connection methods ensures the overall deformation capacity of the unit panels 11 during the bending process and improves the structural strength after splicing, providing a stable foundation for the subsequent milling of decorative structures and the assembly of the flat panel 2.

[0051] In a preferred embodiment, the fixed connection is at least one of adhesive bonding, screw connection, or mortise and tenon connection.

[0052] In this embodiment, adhesive bonding enables seamless adhesion between the flat panel 2 and the unit panel 11; screw connection provides mechanical locking force, enhancing local shear resistance; and mortise and tenon connection achieves precise positioning and load transfer through a physical interlocking structure. These three connection methods can be used individually or in combination. Their synergistic effect ensures the overall structural strength while allowing for flexible selection of connection strategies based on different materials (e.g., wood-based panels require crack prevention, and metal substrates require slip prevention) and curvature requirements, effectively balancing processing efficiency and structural reliability.

[0053] In a preferred embodiment, the fixed connection is a mortise and tenon connection, with a tenon or mortise at the end of the arc-shaped plate body 1 and a corresponding mortise or tenon at the end of the flat plate 2.

[0054] In this embodiment, the interface between the curved plate body 1 and the flat plate 2 is standardized by adopting a mortise and tenon joint, achieving rapid assembly and mechanical interlocking through the precise fit of the tenon and mortise. Specifically, the fixed connection is a mortise and tenon joint, avoiding the additional processing steps of glued or screwed connections. Furthermore, by setting tenons or mortises at the ends of the curved plate body 1 and correspondingly setting mortises or tenons at the ends of the flat plate 2, a geometrically complementary physical interlocking structure is ensured during assembly. This design not only enhances the shear and torsional resistance of the connection points but also reduces assembly errors through the pre-positioning function of the mortise and tenon joint, thereby improving the overall structural stability and splicing efficiency.

[0055] In a preferred embodiment, the material of the unit board 11 is one of wood-based panel, plastic-based composite material or metal-based composite material.

[0056] This embodiment provides differentiated material selection for various application scenarios by limiting the material type of the unit board 11. Wood-based panels offer advantages in natural texture and processing performance, balancing decorative effects with milling requirements; plastic-based composite materials are lightweight and corrosion-resistant, suitable for humidity-sensitive environments; and metal-based composite materials enhance mechanical properties, meeting high-load-bearing requirements. All three types of materials are compatible with CNC milling processes. Precise machining of the groove 13 structure is achieved through parametric adjustment of milling parameters. Simultaneously, their physical properties (such as elastic modulus and ductility) can be adapted to the synergistic effect of stress-relieving structures in bending processes, thereby completing the arc-shaped structure while maintaining the integrity of the decorative graphic. The range of material selection covers organic, inorganic, and composite materials, expanding the applicability of the technical solution in fields such as construction and furniture.

[0057] This utility model also provides a parametric CNC milling machine system for producing the above-mentioned curved artificial board structure, the system comprising:

[0058] CNC milling machine, equipped with a milling spindle;

[0059] The control unit is communicatively connected to the CNC milling machine;

[0060] The parameter database stores a set of milling parameters corresponding to various target curvatures, sheet materials and thicknesses. The set of milling parameters includes the shape, spacing, depth and V-groove angle of the slot 13.

[0061] The control unit is configured to: receive target curvature, sheet material and thickness parameters; retrieve or calculate a corresponding milling parameter set from the parameter database based on the received parameters; and control the CNC milling machine to mill the decorative structure on the unit sheet 11 according to the milling parameter set.

[0062] In this embodiment, the milling spindle of the CNC milling machine provides precise machining capabilities, ensuring that the shape of the groove 13 matches the target curvature. The synergistic effect of the control unit and the parameter database allows for automatic matching or calculation of the optimal set of parameters for the shape, spacing, and depth of the groove 13 based on the input material, thickness, and curvature parameters of the sheet metal. This solves the problem of dynamically adapting decorative patterns to bending stress release in traditional processes. The multi-dimensional machining parameters stored in the parameter database enable the system to quickly respond to different material properties and curvature requirements, eliminating reliance on dedicated molds. By adjusting key parameters such as the angle of the groove 13 in real time, stress release channels are simultaneously formed during the carving of decorative graphics, achieving a unity of decorative effect and structural strength, while also meeting the flexible needs of small-batch customized production.

[0063] The working principle of the parametric CNC milling machine system is as follows: When the target curvature, material, and thickness parameters are input, the control unit retrieves the corresponding groove morphology parameters 13 by querying the parameter database. For example, for a wood-based panel with a curvature radius of 800 mm, the system automatically matches a parameter combination of a V-groove angle of 60 degrees and a groove spacing of 15 mm. The milling spindle engraves a wave-patterned decorative graphic on the surface of the unit panel 11 according to the instructions, while the formed V-groove serves as a stress relief channel. When encountering special curvatures or new materials, the control unit can calculate the groove depth and distribution density in real time based on the material mechanics model to generate a suitable milling path.

[0064] This embodiment uses a parameter database to dynamically match processing parameters, which can avoid stress concentration caused by differences in material rigidity, eliminate the limitations of physical molds, and enable the same equipment to process various curvature combinations of plates.

[0065] In this invention, the arc-shaped plate body 1 can be integrally formed by bending multiple (e.g., 3 to 20) parallel unit plates 11. The thickness of each unit plate 11 ranges from 5mm to 30mm, and the material can be selected from wood-based panels such as particleboard, medium-density fiberboard (MDF), and plywood, or plastic and metal composite materials.

[0066] On each of the unit sheet materials 11, multiple elongated holes 12 are machined as stress-relieving structures. These elongated holes 12 penetrate the sheet material vertically, and are oblong or rectangular in shape, with their length direction perpendicular to the bending direction. The width of the elongated holes 12 is 2 mm to 10 mm, and the length is 10 mm to 90 mm. Their distribution density is set based on the target curvature. Simultaneously, slots 13, serving as decorative structures, are milled on the end face of each unit sheet material 11 using a CNC milling machine (such as a five-axis CNC milling machine). The depth of the slots 13 is 1 / 5 to 1 / 2 of the sheet material thickness, and the width is 0.5 mm to 3 mm. These slots 13 collectively form a wavy or geometrically arrayed decorative pattern. Importantly, the distribution density and depth of these slots 13 are also calculated based on the target curvature, allowing them to function as decorative channels while simultaneously acting as bending stress-relieving channels, working in conjunction with the elongated holes 12 to ensure the accuracy of bending and structural stability.

[0067] During manufacturing, the parameters of the elongated holes 12 and slots 13 on each unit plate are first calculated based on the target curvature; then, the elongated holes 12 and slots 13 are sequentially machined on the unit plate 11 using a CNC milling machine; finally, the plate is easily bent to the target curvature using a bending device and these stress-relieving structures, and spliced ​​and fixed with two flat plate pieces 2 to finally form an arc-shaped artificial board structure.

[0068] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and alterations to the above embodiments within the scope of the present invention without departing from the principles and spirit of the present invention, and all such changes should fall within the protection scope of the claims of the present invention.

Claims

1. An arc-shaped artificial board structure, characterized in that, include: The arc-shaped plate body (1) is formed by fixing multiple unit plates (11) together and forming an arc-shaped structure with a target curvature through a bending process. The stress relief structure consists of a plurality of vertically distributed elongated holes (12) disposed on each of the unit plates (11), the shape, size and distribution density of which are configured to allow the unit plates (11) to adapt to the target curvature in the bending process and to be compatible with the material and thickness parameters of the unit plates (11). The decorative structure is a groove (13) formed by milling on the surface of each unit plate (11) by a CNC milling machine, so that the groove (13) also serves as a bending stress relief channel. Two flat plates (2) are fixedly connected to both ends of the arc-shaped plate body (1) so that the surface of the flat plate (2) is flush with the cut surface of the end of the arc-shaped plate body (1).

2. The arc-shaped artificial board structure according to claim 1, characterized in that, The distribution density and depth of the slot (13) and the distribution density and size of the elongated hole (12) are set collaboratively based on the target curvature.

3. The arc-shaped artificial board structure according to claim 1, characterized in that, The elongated hole (12) is one of an oblong, rectangular or elliptical shape, and its major axis is perpendicular to the bending direction of the unit plate (11).

4. The arc-shaped artificial board structure according to claim 1, characterized in that, The groove (13) is one of a V-shaped groove, a U-shaped groove, or a rectangular groove.

5. The arc-shaped artificial board structure according to claim 1, characterized in that, The grooves (13) of multiple unit panels (11) together form a decorative pattern of wave pattern or geometric array.

6. The arc-shaped artificial board structure according to claim 1, characterized in that, Multiple unit panels (11) are fixedly connected to form an integral structure by adhesive bonding or mechanical connection.

7. The arc-shaped artificial board structure according to claim 1, characterized in that, The fixed connection is at least one of adhesive bonding, screw connection or mortise and tenon connection.

8. The arc-shaped artificial board structure according to claim 7, characterized in that, The fixed connection is a tenon and mortise connection. The end of the arc-shaped plate body (1) is provided with a tenon or mortise, and the end of the flat plate (2) is provided with a corresponding mortise or tenon.

9. The arc-shaped artificial board structure according to claim 1, characterized in that, The material of the unit board (11) is one of wood-based artificial board, plastic-based composite material or metal-based composite material.

10. A parametric CNC milling machine system for producing the arc-shaped artificial board structure as described in claim 1, characterized in that, include: CNC milling machine, equipped with a milling spindle; The control unit is communicatively connected to the CNC milling machine; The parameter database stores a set of milling parameters corresponding to various target curvatures, sheet materials and thicknesses, including the shape, spacing, depth and V-groove angle of the slot (13); The control unit is configured to: receive target curvature, sheet material and thickness parameters; call or calculate the corresponding milling parameter set from the parameter database based on the received parameters; and control the CNC milling machine to mill the decorative structure on the unit sheet (11) according to the milling parameter set.

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