A cabinet and wire rack modeling method and apparatus

Abstract

The present application relates to a kind of cabinet and line frame modeling method and device.The method part mainly includes: establishing the three-dimensional model and engineering drawing of general line frame parts, and determining relevant size parameters;Optimization design step: according to the structure and push-pull stroke of unit, determine the installation position of line frame, and according to the push-pull stroke and installation position parameters, the relevant size of line frame is optimized and designed;Automatic update step: the size parameter after optimization is transferred to three-dimensional model and engineering drawing to automatically update;Parameter saving step: the figure number, name, size parameter of line frame parts are saved in database.The present application can improve the design efficiency and product reusability of cabinet and line frame, and the size of line frame is optimized and designed, so that its design is more reasonable.

Description

Technical Field

[0001] This invention relates to the field of cabinet cable tray technology, and in particular to a cabinet cable tray modeling method and apparatus for the optimized design of foldable cable trays inside cabinet equipment. Background Technology

[0002] Existing cabinet-type equipment contains various units, each connected to a cable, and can be pushed and pulled in both directions. To prevent damage to the cables due to deformation and interference with the cabinet's structural components during this process, a cable guide frame is typically installed to secure the cables. This cable guide frame is foldable, with one end fixed to the cabinet frame and the other to the unit. The frame folds or unfolds as the unit is pushed or pulled, preventing damage to the cables secured to it due to interference.

[0003] Because the dimensions of various units differ, and their push-pull distances (i.e., strokes) vary, different units require different wire guide frames with varying structural dimensions. The traditional method involves designing different wire guide frames based on the structural dimensions of each unit. A typical wire guide frame includes four connecting plates and three hinges; the four connecting plate parts and the wire guide frame components are each created with separate 3D models and engineering drawings. Newly designed parts and components use different drawing numbers. In practical applications, this design method has been found to have the following problems:

[0004] 1) The design efficiency is low, and the advantages of parametric modeling are not fully utilized.

[0005] 2) Poor product reusability. Some parts are the same size and cannot be fully reused.

[0006] 3) Some cable tray designs are unreasonable and their dimensions are not optimized.

[0007] In view of this, how to overcome the shortcomings of the existing technology and solve the above-mentioned technical problems is a difficult problem to be solved in this technical field. Summary of the Invention

[0008] To address the shortcomings or improvement needs of existing technologies, and to enhance the design efficiency and reusability of cable management frames for cabinet equipment, as well as optimize their dimensions, this invention provides a cable management frame design method. The method optimizes the dimensions of the cable management frame based on the unit's structure and push-pull stroke. The names, drawing numbers, and dimensional parameters of the components are stored in a database and transferred to the 3D model and engineering drawings. For components with the same dimensional values, the old drawing number is retrieved from the database for reuse, eliminating the need to create new 3D models and engineering drawings.

[0009] The embodiments of the present invention adopt the following technical solutions:

[0010] In a first aspect, the present invention provides a method for modeling cabinets and cable trays, including:

[0011] Establish 3D models and engineering drawings of common cable tray components, and determine relevant dimensional parameters;

[0012] Optimization design steps: Based on the unit's structure and push-pull stroke, determine the installation position of the cable tray, and optimize the relevant dimensions of the cable tray based on the push-pull stroke and installation position parameters;

[0013] Automatic update steps: Pass the optimized dimensional parameters to the 3D model and engineering drawings for automatic updates;

[0014] Parameter saving steps: Save the drawing number, name, and size parameters of the cable tray components in the database.

[0015] Furthermore, for the newly designed units, including:

[0016] Repeatedly optimize the design process and automatically update the process;

[0017] Search the database for the corresponding component's dimension value. If the dimension value is the same, read the old drawing number and borrow it; otherwise, generate a new drawing number and repeat the parameter saving steps.

[0018] Furthermore, the cable support frame includes a first connecting plate, a second connecting plate, a third connecting plate, and a fourth connecting plate. The first connecting plate is fixed to the cabinet frame, and the fourth connecting plate is fixed to the unit. The first connecting plate and the second connecting plate are connected together by a first hinge and can rotate relative to each other. The second connecting plate and the third connecting plate are connected together by a second hinge and can rotate relative to each other. The third connecting plate and the fourth connecting plate are connected together by a third hinge and can rotate relative to each other. The connection ends of the second connecting plate and the third connecting plate are provided with a bending transition structure to reduce the bending deformation and stress of the cable at the second hinge of the second connecting plate and the third connecting plate.

[0019] Furthermore, the second connecting plate and the third connecting plate are provided with a plurality of binding positions. The binding positions on the second connecting plate are inclined in one direction, and the binding positions on the third connecting plate are inclined in the same direction as the binding positions on the second connecting plate. The starting point height of the binding positions on the second connecting plate is the same as the starting point height of the binding positions on the third connecting plate, and the ending point height of the binding positions on the second connecting plate is the same as the ending point height of the binding positions on the third connecting plate. This is so that after the cable is bound and fixed by the binding positions, the cable is in an inclined state and forms a wave shape at the second hinge. When the second connecting plate and the third connecting plate are folded relative to each other, the bending deformation and stress of the cable at the second hinge are reduced compared to when it is not inclined.

[0020] The end point of the binding position on the second connecting plate is located at the junction of the second connecting plate and the second hinge, and the start point of the binding position on the third connecting plate is located at the junction of the third connecting plate and the second hinge. The second hinge is provided with a through groove. When the second connecting plate and the third connecting plate are extended to their maximum stroke, the cable at the second hinge is located on one side of the second hinge and is flush with the surface of the second hinge. When the second connecting plate and the third connecting plate are folded relative to each other, a portion of the cable at the second hinge passes through the through groove of the second hinge to the other side of the second hinge.

[0021] Furthermore, the dimensions of the cable tray include: w1, h1, w2, h2, w3, h3, w4, h4, θ, x, y, d; where:

[0022] w1 is the width dimension of the first connecting plate, h1 is the depth dimension of the first connecting plate, w2 is the width dimension of the second connecting plate, h2 is the depth dimension of the second connecting plate, w3 is the width dimension of the third connecting plate, h3 is the depth dimension of the third connecting plate, w4 is the width dimension of the fourth connecting plate, and h4 is the depth dimension of the fourth connecting plate; where w2, w3, and h4 are parameters to be optimized, and the remaining parameter values ​​are preset constants;

[0023] θ is the bending angle of the second and third connecting plates;

[0024] x is the horizontal offset of the fourth connecting plate relative to the first connecting plate when the unit is fully pushed in, and y is the vertical offset of the fourth connecting plate relative to the first connecting plate when the unit is fully pushed in.

[0025] d represents the maximum stroke of the unit extraction. At the maximum stroke of the unit extraction, the horizontal offset of the fourth connecting plate relative to the first connecting plate is x' = x, and the vertical offset of the fourth connecting plate relative to the first connecting plate is y' = y + d.

[0026] Furthermore, when the main body of the second connecting plate is in a horizontal state, the dimensional parameters of the first hinge include: m1, n1, t1, and the dimensional parameters of the second hinge include: m2, n2, t2; wherein:

[0027] m1 is the horizontal distance between the hinge center of the first hinge and the first connecting plate, n1 is the vertical distance between the hinge center of the first hinge and the first connecting plate, and t1 is the thickness of the first connecting plate.

[0028] m2 is the horizontal distance between the hinge center of the second hinge and the second connecting plate, n2 is the vertical distance between the hinge center of the second hinge and the second connecting plate, and t2 is the thickness of the second connecting plate.

[0029] Furthermore, the optimization design of the relevant dimensions of the cable tray specifically includes:

[0030] The second and third connecting plates are simplified as right triangles ΔAPO and ΔBQO, respectively, where point A is the hinge center of the first hinge between the first and second connecting plates, point O is the hinge center of the second hinge between the second and third connecting plates, and point B is the hinge center of the third hinge between the third and fourth connecting plates; ΔAPO and ΔBQO represent the folding positions of the cable tray; the side lengths and corresponding included angles of each triangle are as follows:

[0031]

[0032]

[0033] ∠OAP=atan(OP / AP), ∠OBQ=atan(OQ / BQ);

[0034] Let ΔAP2O2 and ΔB2Q2O2 be the unfolded positions of the cable guide frame. When the cable guide frame is unfolded, the angle between B2Q2 and AP2 is α, and the angle between B2O2 and AO2 is β. The stroke of the unit and the cable guide frame at this point is d. Then:

[0035] d = B2L - (OP + OQ) (Equation 1);

[0036] in:

[0037]

[0038] AL = w1 - x + m1 - n1 - t1;

[0039]

[0040] β=∠B2O2A=α-∠OAP-∠OBQ;

[0041] When the cable tray is folded, BQ and AP are horizontal, α = 0, BQ = AP + AL, then:

[0042] w3 = w2 + AL (Equation 2);

[0043] Combining Equations 1 and 2, the parameters w2 and w3 are solved analytically or numerically.

[0044] The solution to parameter h4 includes: h4 = y - t1 + t2 - (h2 + h3 + 2*n2 + m1 + n1) (Equation 3).

[0045] Furthermore, it also includes a cable tray parameter design table, which includes input parameters, known parameters, parameters to be determined, and model name; wherein:

[0046] The input parameters include x, y, and d, and their values ​​must be provided.

[0047] The known parameters include w1, h1, h2, h3, and w4, which are determined based on the inherent structure of the part.

[0048] The parameters to be determined include w2, w3, and h4, which are solved using known parameters and input parameters.

[0049] The model names include the first connecting plate, the second connecting plate, the third connecting plate, the fourth connecting plate, and the cable tray assembly. Each model has a corresponding model drawing number and a new drawing / borrowing mark. When the parameter values ​​of the corresponding model are the same as those of an existing model in the cable tray database, the existing model drawing number is directly borrowed; otherwise, a new drawing number is generated.

[0050] Furthermore, the cable guide frame database is used to store and retrieve the drawing numbers and parameter information of the cable guide frame assembly and each connecting plate part. For the first to fourth connecting plates, the parameter content includes the dimensional parameters of each part; for the cable guide frame assembly, the parameter content includes the dimensional parameters of the assembly and the drawing number of each part within the assembly; for new drawing numbers, the data is transmitted to the 3D model, and the 3D model and engineering drawings are automatically updated.

[0051] On the other hand, the present invention provides a cabinet and cable tray modeling device, specifically comprising at least one processor and a memory, wherein the at least one processor and the memory are connected via a data bus, the memory stores instructions that can be executed by the at least one processor, and the instructions, after being executed by the processor, are used to complete the cabinet and cable tray modeling method in the first aspect.

[0052] Compared with existing technologies, the advantages of this invention are as follows: The method of this invention optimizes the dimensions of the cable tray based on the unit's structure and push-pull stroke. The names, drawing numbers, and dimensional parameters of the components are stored in a database and transferred to the 3D model and engineering drawings. For components with the same dimensional values, the old drawing number is retrieved from the database for reuse, eliminating the need to create new 3D models and engineering drawings. Compared with traditional design methods, this invention improves the design efficiency and product reusability of the cable tray, and optimizes the dimensions of the cable tray, making its design more rational.

[0053] The design of the cable guide frame, the binding position design on the cable guide frame, and the cable arrangement method of this invention can reduce the bending deformation and stress of the cable when the cable guide frame is folded. In addition to reducing bending deformation and stress, a through groove is also provided on the hinge to reduce the cable length and save resources. Attached Figure Description

[0054] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments of the present invention will be briefly described below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0055] Figure 1 This is a flowchart of a cabinet and cable tray modeling method provided in Embodiment 1 of the present invention;

[0056] Figure 2 This is a schematic diagram of the cabinet, cable tray, and unit installation provided in Embodiment 1 of the present invention;

[0057] Figure 3 This is a schematic diagram of the cable tray structure provided in Embodiment 1 of the present invention;

[0058] Figure 4 This is a schematic diagram of the dimensions of the cable tray provided in Embodiment 1 of the present invention;

[0059] Figure 5 This is a schematic diagram of the hinge size parameters provided in Embodiment 1 of the present invention;

[0060] Figure 6 This is a schematic diagram of the cable tray size calculation provided in Embodiment 1 of the present invention;

[0061] Figure 7 This is a schematic representation of the cable tray parameter design provided in Embodiment 1 of the present invention;

[0062] Figure 8 This is a schematic diagram of the cable tray database provided in Embodiment 1 of the present invention;

[0063] Figure 9 This is an example diagram showing a suitable wire frame length provided in Embodiment 1 of the present invention;

[0064] Figure 10 Example diagram of the unit not being able to be fully pulled out due to the short length of the cable tray provided in Embodiment 1 of the present invention;

[0065] Figure 11 This is an example diagram illustrating interference between the cable tray and the cabinet frame caused by the backward tilting of the cable tray according to Embodiment 1 of the present invention.

[0066] Figure 12 This is a schematic diagram of the binding position and cable arrangement in the first method provided in Embodiment 2 of the present invention;

[0067] Figure 13 This is a schematic diagram of the second connecting plate and the third connecting plate after folding in the first embodiment of the present invention, provided in Embodiment 2 of the present invention;

[0068] Figure 14This is a schematic diagram of the binding position and cable arrangement in the second method provided in Embodiment 2 of the present invention;

[0069] Figure 15 This is a schematic diagram of the second connecting plate and the third connecting plate after folding in the second embodiment of the present invention, provided in Embodiment 2 of the present invention;

[0070] Figure 16 This is a schematic diagram of a cabinet and cable tray modeling device provided in Embodiment 3 of the present invention. Detailed Implementation

[0071] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0072] This invention is an architecture of a specific functional system. Therefore, the specific embodiments mainly describe the functional logic relationship of each structural module, and do not limit the specific software and hardware implementation methods.

[0073] In the description of this invention, the terms "inner", "outer", "longitudinal", "lateral", "upper", "lower", "top", "bottom", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and do not require that this invention must be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0074] Furthermore, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other, and the order of the steps can be changed as long as they are logical and do not conflict. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0075] Example 1:

[0076] like Figure 1 As shown, this embodiment of the invention provides a method for modeling cabinets and cable trays, including the following steps:

[0077] Step 100: Establish a 3D model and engineering drawings of the general cable tray components, and determine the relevant dimensional parameters.

[0078] Step 200: Optimization design steps: Based on the unit's structure and push-pull stroke, determine the installation position of the cable tray, and optimize the relevant dimensions of the cable tray based on the push-pull stroke and installation position parameters.

[0079] Step 300: Automatic Update Step: Pass the optimized dimensional parameters to the 3D model and engineering drawings for automatic updates.

[0080] Step 400: Parameter saving step: Save the drawing number, name, and size parameters of the cable tray components in the database.

[0081] Step 500: For newly designed units, repeat the optimization design steps and the automatic update steps.

[0082] Step 600: Search for the corresponding component's dimension value in the database. If the dimension value is the same, read the old drawing number and borrow it; otherwise, generate a new drawing number and repeat the parameter saving step.

[0083] The embodiments of this invention improve the design efficiency and product reusability of the cable tray through the above steps, and optimize the size of the cable tray for a more reasonable design. It should be noted that the above steps can be automated through secondary development of spreadsheets; clicking the corresponding button completes the process, thereby further improving efficiency.

[0084] refer to Figure 2 The diagram shown illustrates the installation of cable trays and units within a cabinet frame 1. Generally, multiple units 2 are installed from top to bottom within the frame 1, allowing the units 2 to be pushed and pulled inwards or outwards. Cable trays 3 are installed between each unit 2 and the frame 1. Cables 4 are connected between each unit 2. The cable trays 3 are used to secure the cables 4 and can unfold or fold as the units 2 are pulled out or pushed in. The structural dimensions and pushing / pulling strokes of each unit 2 are different, and correspondingly, the structural dimensions and installation positions of each cable tray 3 are also different.

[0085] refer to Figure 3As shown, in a specific embodiment of this preferred embodiment, the cable tray 3 includes a first connecting plate 31, a second connecting plate 32, a third connecting plate 33, and a fourth connecting plate 34. The first connecting plate 31 is fixed to the cabinet frame 1 (the first connecting plate 31 is L-shaped, with one side of the L fixed to the cabinet frame 1 and the other side extending horizontally to connect with the second connecting plate 32). The fourth connecting plate 34 is fixed to the unit 2 (the fourth connecting plate 34 is L-shaped, with one side of the L fixed to the cabinet frame 1 and the other side extending vertically to connect with the third connecting plate 33). The first connecting plate 31 and the second connecting plate 32 are connected together by a first hinge 35 and can be hinged relative to each other. The second connecting plate 32 and the third connecting plate 33 are connected together by a second hinge 36 and can rotate relative to each other. The third connecting plate 33 and the fourth connecting plate 34 are connected together by a third hinge 37 and can rotate relative to each other. The connecting ends of the second connecting plate 32 and the third connecting plate 33 are provided with bending transition structures 38. The bending transition structure 38 of the second connecting plate 32 faces the third connecting plate 33, and the bending transition structure 38 of the third connecting plate 33 faces the second connecting plate 32, so as to reduce the bending deformation and stress of the cable 4 at the second hinge 36 of the second connecting plate 32 and the third connecting plate 33.

[0086] It should be noted that the optimal configuration is when the second connecting plate 32 and the third connecting plate 33 are folded into a horizontal position after unit 2 is fully pushed into the cabinet frame 1. If the second connecting plate 32 and the third connecting plate 33 are tilted towards unit 2, the space between the second connecting plate 32 and the third connecting plate 33 at the second hinge 36 and unit 2 will be reduced or even interfere with each other, affecting cable routing at this location. Similarly, if the second connecting plate 32 and the third connecting plate 33 are tilted towards the rear side of the cabinet frame 1, the space between the second connecting plate 32 and the third connecting plate 33 at the second hinge 36 and the rear side of the cabinet frame 1 will be reduced or even interfere with each other, affecting cable routing at this location. (Reference) Figure 9 Here is an example diagram showing the appropriate length of the wire frame. Figure 10 Example diagram showing how the unit cannot be fully extended due to the short length of the cable tray. (Refer to...) Figure 11 This diagram illustrates interference between the cable tray and the cabinet frame caused by the cable tray tilting backward. Additionally, the cable tray 3 unfolds as unit 2 is pulled out. When the axes of the first hinge 35, second hinge 36, and third hinge 37 are aligned, the cable tray 3 is fully unfolded, maximizing the stroke of unit 2. However, considering the excessive bending deformation and stress on the cable 4 at the second hinge 36 when the cable tray 3 is fully unfolded, in practice, to maximize the stroke of unit 2, the cable tray 3 unfolds until the second connecting plate 32 and the third connecting plate 33 form a certain angle; in this embodiment, this angle is 120°.

[0087] refer to Figure 4The diagram shown is a schematic of the dimensions of the cable management frame. In a specific embodiment of this preferred embodiment, the dimensions of the cable management frame 3 include: w1, h1, w2, h2, w3, h3, w4, h4, θ, x, y, d; wherein:

[0088] w1 represents the width of the first connecting plate 31, h1 represents the depth of the first connecting plate 31, w2 represents the width of the second connecting plate 32, h2 represents the depth of the second connecting plate 32, w3 represents the width of the third connecting plate 33, h3 represents the depth of the third connecting plate 33, w4 represents the width of the fourth connecting plate 34, and h4 represents the depth of the fourth connecting plate 34; where w2, w3, and h4 are parameters to be optimized, and the remaining parameter values ​​are preset constants; θ represents the bending angle of the second connecting plate 32 and the third connecting plate 33; the values ​​in this embodiment are as follows: w1 = 40, h1 = 30, h2 = 15.7, h3 = 15.7, θ = 150°. It should be noted that in this embodiment, width refers to... Figure 4 The horizontal distance, depth refers to Figure 4 The distance in the vertical direction.

[0089] x represents the horizontal offset of the fourth connecting plate 34 relative to the first connecting plate 31 when unit 2 is fully pushed in, and y represents the vertical offset of the fourth connecting plate 34 relative to the first connecting plate 31 when unit 2 is fully pushed in; its value is related to the specific structure of the unit and is provided before the cable tray design.

[0090] d represents the maximum stroke of unit 2, provided before the cable tray design. At the maximum stroke of unit 2, the horizontal offset of the fourth connecting plate 34 relative to the first connecting plate 31 is x' = x, and the vertical offset of the fourth connecting plate 34 relative to the first connecting plate 31 is y' = y + d.

[0091] refer to Figure 5The diagram shows the hinge dimensions. In one specific embodiment of this preferred embodiment, when the main body of the second connecting plate 32 is in a horizontal state, the dimensions of the first hinge 35 include m1, n1, and t1, and the dimensions of the second hinge 36 include m2, n2, and t2; wherein: m1 is the horizontal distance between the hinge center of the first hinge 35 and the first connecting plate 31 (m in the diagram, the distance from the hinge center of the first hinge 35 to the first connecting plate 31 and to the second connecting plate 32 is the same, both are m), n1 is the vertical distance between the hinge center of the first hinge 35 and the first connecting plate 31 (n in the diagram), and t1 is the thickness of the first connecting plate 31; m2 is the horizontal distance between the hinge center of the second hinge 36 and the second connecting plate 32, n2 is the vertical distance between the hinge center of the second hinge 36 and the second connecting plate 32, and t2 is the thickness of the second connecting plate 32. The values ​​of each parameter are constants. In this implementation case, the values ​​are as follows: m1 = m = 4.1, n1 = n = 3.15, t1 = 2, t2 = 1.5. Since the structural dimensions and installation methods of each hinge are exactly the same, only the direction angles are different, m2 and n2 can be obtained from the above values ​​and θ.

[0092] refer to Figure 6 The diagram shown is a schematic diagram for calculating the dimensions of the cable tray. In a specific embodiment of this preferred embodiment, the optimization design of the relevant dimensions of the cable tray 3 specifically includes:

[0093] The second connecting plate 32 and the third connecting plate 33 are simplified into right-angled triangles ΔAPO and ΔBQO, respectively. Point A is the hinge center of the first hinge 35 between the first connecting plate 31 and the second connecting plate 32; point O is the hinge center of the second hinge 36 between the second connecting plate 32 and the third connecting plate 33; and point B is the hinge center of the third hinge 37 between the third connecting plate 33 and the fourth connecting plate 34. ΔAPO and ΔBQO represent the folding positions of the cable guide frame 3. The side lengths and corresponding included angles of each triangle are as follows:

[0094]

[0095]

[0096] ∠OAP=atan(OP / AP), ∠OBQ=atan(OQ / BQ);

[0097] Let ΔAP2O2 and ΔB2Q2O2 be the unfolded positions of the cable guide frame 3. When the cable guide frame 3 is unfolded, the angle between B2Q2 and AP2 is α, and the angle between B2O2 and AO2 is β. At this time, the stroke of unit 2 and cable guide frame 3 is d. Then we have:

[0098] d = B2L - (OP + OQ) (Equation 1);

[0099] in:

[0100]

[0101] AL = w1 - x + m1 - n1 - t1;

[0102]

[0103] β=∠B2O2A=α-∠OAP-∠OBQ;

[0104] When the cable tray 3 is folded, BQ and AP are horizontal, α = 0, BQ = AP + AL, then we have:

[0105] w3 = w2 + AL (Equation 2);

[0106] Combining Equations 1 and 2, the parameters w2 and w3 are solved analytically or numerically.

[0107] The solution to parameter h4 includes: h4 = y - t1 + t2 - (h2 + h3 + 2*n2 + m1 + n1) (Equation 3).

[0108] refer to Figure 7 The diagram illustrates the design intent of the cable tray parameters. In one specific embodiment of this preferred embodiment, a cable tray parameter design table is also included. This table includes input parameters, known parameters, parameters to be determined, and model names. Input parameters include x, y, and d, whose values ​​must be provided. Known parameters include w1, h1, h2, h3, and w4, determined based on the inherent structure of the parts; considering the reusability of the parts, these parameters are generally not changed. Parameters to be determined include w2, w3, and h4, solved using the known and input parameters. Model names include first connecting plate 31, second connecting plate 32, third connecting plate 33, fourth connecting plate 34, and cable tray 3 components. Each model corresponds to a model drawing number and a new drawing / borrowing mark. When the parameter values ​​of the corresponding model are the same as existing models in the cable tray 3 database, the existing model drawing number can be directly borrowed; otherwise, a new drawing number is generated. This function can be found in the following description of the cable tray database. It should be noted that... Figure 7 For convenience, the parameter table is in place. Figure 8 (The database is the same), the first connecting plate 31 is referred to as connecting plate 1, the second connecting plate 32 is referred to as connecting plate 2, the third connecting plate 33 is referred to as connecting plate 3, and the fourth connecting plate 34 is referred to as connecting plate 4.

[0109] refer to Figure 8The diagram shows a schematic of the cable tray database. In one specific embodiment of this preferred embodiment, the cable tray database is used to store and retrieve drawing numbers and parameter information of cable tray components and each connecting plate part. For the first connecting plate 31 to the fourth connecting plate 34, the parameter content includes the dimensional parameters of each part; for the cable tray component, the parameter content includes the dimensional parameters of the component and the drawing number of each part within the component; for a new drawing number, the data is transmitted to the three-dimensional model, and the three-dimensional model and engineering drawing are automatically updated.

[0110] For example:

[0111] Given x = 15, y = 90, and d = 432, we can solve for w2 = 244, w3 = 268, and h4 = 41. Write the data to... Figure 8 In the database, see numbers 1 to 5, and update the corresponding 3D models and engineering drawings.

[0112] Given x = 15, y = 90, and d = 482, we can solve for w2 = 273, w3 = 297, and h4 = 41. Write the data to... Figure 8 The database is referenced in numbers 6 to 8. The first connecting plate 31 and the fourth connecting plate 34 borrow existing data, as shown in numbers 1 and 4 respectively. Only the 3D models and engineering drawings of the second connecting plate 32, the third connecting plate 33, and the cable tray assembly are updated.

[0113] The above process can be achieved through secondary development of spreadsheets. Figure 7 In the process, clicking the "Solve" button will automatically generate the parameter values ​​to be determined; clicking "Update Model" will automatically read and write the database, generate model drawing numbers, and update the 3D model and engineering drawings.

[0114] In summary, the method of this embodiment optimizes the dimensions of the cable tray 3 based on the structure and push-pull stroke of unit 2. The names, drawing numbers, and dimensional parameters of the components are stored in a database and transferred to the 3D model and engineering drawings. For components with the same dimensional values, the old drawing number is retrieved from the database for reuse, eliminating the need to create new 3D models and engineering drawings. Compared to traditional design methods, this invention improves the design efficiency and product reusability of the cable tray 3, and optimizes its dimensions for a more rational design.

[0115] Example 2:

[0116] Embodiment 2 of the present invention also provides a design for a cable follower 3, a binding position design on the cable follower 3, and a cable 4 arrangement method, so as to reduce the bending deformation and stress of the cable 4, and on the basis of reducing the bending deformation and stress, reduce the length of the cable 4 to save resources.

[0117] For details, please refer to Figure 12As shown in a specific embodiment of this preferred embodiment, the second connecting plate 32 and the third connecting plate 33 are provided with a plurality of binding positions 5. The binding positions 5 on the second connecting plate 32 are inclined in one direction, and the binding positions 5 on the third connecting plate 33 are inclined in the same direction as the binding positions 5 on the second connecting plate 32. The starting point height of the binding positions 5 on the second connecting plate 32 is the same as the starting point height of the binding positions 5 on the third connecting plate 33, and the ending point height of the binding positions 5 on the second connecting plate 32 is the same as the starting point height of the binding positions 5 on the third connecting plate 33. The end points of the binding positions 5 on the connecting plate 33 are at the same height, so that after the binding positions 5 bind and fix the cable 4, the cable 4 is in an inclined state and forms a wave shape at the second hinge 36. When the second connecting plate 32 and the third connecting plate 33 are folded relative to each other, the bending deformation and stress of the cable 4 at the second hinge 36 are reduced compared to when it is not tilted. The principle is that in this embodiment, the cable 4 is arranged in an interlaced state after folding, which will have a certain angle change compared to a direct fold, making the folding angle gentler, thereby reducing bending deformation and stress. It should be noted that... Figure 12 This is a simplified schematic diagram showing the arrangement of the binding position 5 and the cable 4 when the second connecting plate 32 and the third connecting plate 33 are unfolded.

[0118] In one specific embodiment of this preferred embodiment, the end point of the binding position 5 on the second connecting plate 32 is located at the junction of the second connecting plate 32 and the second hinge 36, and the start point of the binding position 5 on the third connecting plate 33 is located at the junction of the third connecting plate 33 and the second hinge 36. The second hinge 36 is provided with a through groove 361. When the second connecting plate 32 and the third connecting plate 33 are at their maximum extended stroke, the cable 4 at the second hinge 36 is located on one side of the second hinge 36 and flush with the surface of the second hinge 36 (here, "flush" means that the cable 4 is...). Figure 12 (Not far from the second hinge 36 in the inward or outward direction), when the second connecting plate 32 and the third connecting plate 33 are folded relative to each other, a portion of the cable 4 at the second hinge 36 passes through the through slot 361 of the second hinge 36 to the other side of the second hinge 36, for reference. Figure 12 As shown, the center of the second hinge 36 is a vertical rotation axis 362. The second hinge 36 is located inside the second connecting plate 32 and the third connecting plate 33, and the cable 4 is located outside the second hinge 36. (Refer to...) Figure 13As shown, after folding, the third connecting plate 33 has completely come behind the second connecting plate 32, and the right half of the second hinge 36 has also been folded behind the left half. At this time, the folded shape of the cable 4 is as shown in the figure. The cable 4 at the second hinge 36 has also come from the outside of the second hinge 36 to the inside of the second hinge 36 (the rightmost end of the cable 4 in the figure is to the left of the rightmost side of the second hinge 36). If the through slot 361 is not designed, the length of the cable 4 will need to be increased to achieve the folding effect of the through slot 361. Therefore, the design of the through slot 361 can save the length of the cable 4.

[0119] It should be noted that the above structural design is one optional design method in this embodiment. In another optional design method in this embodiment, the binding positions 5 on the second connecting plate 32 and the third connecting plate 33 can be set horizontally, but at different heights. That is, even if the cable 4 is fixed by the binding position 5, the second connecting plate 32 and the third connecting plate 33 are at different heights and staggered vertically. This design can also make the cable 4 form a wave shape at the second hinge 36. Therefore, when the second connecting plate 32 and the third connecting plate 33 are folded relative to each other, the bending deformation and stress of the cable 4 at the second hinge 36 are reduced compared with the non-tilted setting. This setting can increase the included angle at the transition point compared with the tilted setting, further reducing the stress at the transition point. Correspondingly, a schematic diagram of the binding position and cable arrangement using this structural design is provided. Figure 14 The diagram shown below illustrates the folded configuration of the second and third connecting plates. Figure 15 As shown.

[0120] It should be noted that the above Figure 12 , 13 Examples 14 and 15 are examples under ideal conditions. In actual settings, the theories of reducing bending deformation and stress, and reducing cable length remain unchanged, and the settings of each component can be adjusted according to the actual setup.

[0121] In summary, the design of the cable follower 3, the design of the binding position 5 on the cable follower 3, and the arrangement of the cable 4 in this invention can reduce the bending deformation and stress of the cable 4 when the cable follower 3 is folded. In addition to reducing the bending deformation and stress, a through groove 361 is also provided on the hinge to reduce the length of the cable 4 and save resources.

[0122] Example 3:

[0123] Based on the cabinet and cable tray modeling method provided in Embodiment 1 above, the present invention also provides a cabinet and cable tray modeling device that can be used to implement the above method, such as... Figure 16 The diagram shown is a schematic representation of the device architecture according to an embodiment of the present invention. The cabinet and cable tray modeling device of this embodiment includes one or more processors 21 and a memory 22. Figure 16Take a processor 21 as an example.

[0124] Processor 21 and memory 22 can be connected via a bus or other means. Figure 16 Taking the example of a connection between China and Israel via a bus.

[0125] The memory 22, as a non-volatile computer-readable storage medium, can be used to store non-volatile software programs, non-volatile computer-executable programs, and modules, such as the cabinet and cable tray modeling method in Embodiment 1. The processor 21 executes various functional applications and data processing of the cabinet and cable tray modeling device by running the non-volatile software programs, instructions, and modules stored in the memory 22, thereby realizing the cabinet and cable tray modeling method of Embodiment 1.

[0126] Memory 22 may include high-speed random access memory, and may also include non-volatile memory, such as at least one disk storage device, flash memory device, or other non-volatile solid-state storage device. In some embodiments, memory 22 may optionally include memory remotely located relative to processor 21, which can be connected to processor 21 via a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.

[0127] The program instructions / modules are stored in memory 22. When executed by one or more processors 21, they perform the cabinet and cable tray modeling method described in Embodiment 1 above, for example, the method described above. Figure 1 The steps shown.

[0128] Those skilled in the art will understand that all or part of the steps in the various methods of the embodiments can be implemented by a program instructing related hardware. The program can be stored in a computer-readable storage medium, which may include: read-only memory (ROM), random access memory (RAM), magnetic disk or optical disk, etc.

[0129] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention. Contents not described in detail in this specification are prior art known to those skilled in the art.

Claims

1. A method for modeling cabinets and cable trays, characterized in that, include: Establish 3D models and engineering drawings of common cable tray components, and determine relevant dimensional parameters; Optimization design steps: Based on the unit's structure and push-pull stroke, determine the installation position of the cable tray, and optimize the relevant dimensions of the cable tray based on the push-pull stroke and installation position parameters; Automatic update steps: Pass the optimized dimensional parameters to the 3D model and engineering drawings for automatic updates; Parameter saving steps: Save the drawing number, name, and size parameters of the cable tray components in the database; The cable support frame includes a first connecting plate, a second connecting plate, a third connecting plate, and a fourth connecting plate. The first connecting plate is fixed to the cabinet frame, and the fourth connecting plate is fixed to the unit. The first connecting plate and the second connecting plate are connected together by a first hinge and can rotate relative to each other. The second connecting plate and the third connecting plate are connected together by a second hinge and can rotate relative to each other. The third connecting plate and the fourth connecting plate are connected together by a third hinge and can rotate relative to each other. The connection ends of the second connecting plate and the third connecting plate are provided with a bending transition structure to reduce the bending deformation and stress of the cable at the second hinge of the second connecting plate and the third connecting plate. The dimensions of the cable tray include: w1, h1, w2, h2, w3, h3, w4, h4, θ, x, y, d; where: w1 is the width dimension of the first connecting plate, h1 is the depth dimension of the first connecting plate, w2 is the width dimension of the second connecting plate, h2 is the depth dimension of the second connecting plate, w3 is the width dimension of the third connecting plate, h3 is the depth dimension of the third connecting plate, w4 is the width dimension of the fourth connecting plate, and h4 is the depth dimension of the fourth connecting plate; where w2, w3, and h4 are parameters to be optimized, and the remaining parameter values ​​are preset constants; θ is the bending angle of the second and third connecting plates; x is the horizontal offset of the fourth connecting plate relative to the first connecting plate when the unit is fully pushed in, and y is the vertical offset of the fourth connecting plate relative to the first connecting plate when the unit is fully pushed in. d is the maximum stroke of the unit being pulled out. At the maximum stroke of the unit being pulled out, the horizontal offset of the fourth connecting plate relative to the first connecting plate is x' = x, and the vertical offset of the fourth connecting plate relative to the first connecting plate is y' = y + d. When the main body of the second connecting plate is in a horizontal state, the dimensional parameters of the first hinge include: m1, n1, t1, and the dimensional parameters of the second hinge include: m2, n2, t2; wherein: m1 is the horizontal distance between the hinge center of the first hinge and the first connecting plate, n1 is the vertical distance between the hinge center of the first hinge and the first connecting plate, and t1 is the thickness of the first connecting plate. m2 is the horizontal distance between the hinge center of the second hinge and the second connecting plate, n2 is the vertical distance between the hinge center of the second hinge and the second connecting plate, and t2 is the thickness of the second connecting plate. The optimization design of the relevant dimensions of the cable tray specifically includes: The second and third connecting plates are simplified as right triangles ΔAPO and ΔBQO, respectively, where point A is the hinge center of the first hinge between the first and second connecting plates, point O is the hinge center of the second hinge between the second and third connecting plates, and point B is the hinge center of the third hinge between the third and fourth connecting plates; ΔAPO and ΔBQO represent the folding positions of the cable tray; the side lengths and corresponding included angles of each triangle are as follows: AP = w2 + m1 + m2, OP = h2 + n2 - (n1 + t2), AO = ; BQ=w3+m1+m2, OQ=h3+n1+n2, BO= ; ∠OAP=atan(OP / AP), ∠OBQ=atan(OQ / BQ); Let ΔAP2O2 and ΔB2Q2O2 be the unfolded positions of the cable guide frame. When the cable guide frame is unfolded, the angle between B2Q2 and AP2 is α, and the angle between B2O2 and AO2 is β. The stroke of the unit and the cable guide frame at this point is d. Then: d = B2L - (OP + OQ) (Equation 1); in: B2L= ; AL = w1 - x + m1 - n1 - t1; B2A= ; β=∠B2O2A=α-∠OAP-∠OBQ; When the cable tray is folded, BQ and AP are horizontal, α=0, BQ=AP+AL, then we have: w3 = w2 + AL (Equation 2); Combining Equations 1 and 2, the parameters w2 and w3 are solved analytically or numerically. The solution to parameter h4 includes: h4 = y - t1 + t2 - (h2 + h3 + 2 × n2 + m1 + n1) (Equation 3).

2. The method for modeling cabinets and cable trays according to claim 1, characterized in that, For the newly designed units, including: Repeatedly optimize the design process and automatically update the process; Search the database for the corresponding component's dimension value. If the dimension value is the same, read the old drawing number and borrow it; otherwise, generate a new drawing number and repeat the parameter saving steps.

3. The method for modeling cabinets and cable trays according to claim 1, characterized in that, The second connecting plate and the third connecting plate are provided with a plurality of binding positions. The binding positions on the second connecting plate are inclined in one direction, and the binding positions on the third connecting plate are inclined in the same direction as the binding positions on the second connecting plate. The starting point height of the binding positions on the second connecting plate is the same as the starting point height of the binding positions on the third connecting plate, and the ending point height of the binding positions on the second connecting plate is the same as the ending point height of the binding positions on the third connecting plate. This is so that after the cable is bound and fixed by the binding positions, the cable is in an inclined state and forms a wave shape at the second hinge. When the second connecting plate and the third connecting plate are folded relative to each other, the bending deformation and stress of the cable at the second hinge are reduced compared to when it is not inclined. The end point of the binding position on the second connecting plate is located at the junction of the second connecting plate and the second hinge, and the start point of the binding position on the third connecting plate is located at the junction of the third connecting plate and the second hinge. The second hinge is provided with a through groove. When the second connecting plate and the third connecting plate are extended to their maximum stroke, the cable at the second hinge is located on one side of the second hinge and is flush with the surface of the second hinge. When the second connecting plate and the third connecting plate are folded relative to each other, a portion of the cable at the second hinge passes through the through groove of the second hinge to the other side of the second hinge.

4. The method for modeling cabinets and cable trays according to claim 1, characterized in that, It also includes a cable tray parameter design table, which includes input parameters, known parameters, parameters to be determined, and model name; wherein: The input parameters include x, y, and d, and their values ​​must be provided. The known parameters include w1, h1, h2, h3, and w4, which are determined based on the inherent structure of the part. The parameters to be determined include w2, w3, and h4, which are solved using known parameters and input parameters. The model names include the first connecting plate, the second connecting plate, the third connecting plate, the fourth connecting plate, and the cable tray assembly. Each model has a corresponding model drawing number and a new drawing / borrowing mark. When the parameter values ​​of the corresponding model are the same as those of an existing model in the cable tray database, the existing model drawing number is directly borrowed; otherwise, a new drawing number is generated.

5. The method for modeling cabinets and cable trays according to claim 4, characterized in that, The cable guide frame database is used to store and retrieve the drawing numbers and parameter information of cable guide frame components and each connecting plate part. For the first to fourth connecting plates, the parameter content includes the dimensional parameters of each part; for the cable guide frame components, the parameter content includes the dimensional parameters of the components and the drawing numbers of each part within the components; for new drawing numbers, the data is transmitted to the 3D model, and the 3D model and engineering drawings are automatically updated.

6. A device for modeling cabinets and cable trays, characterized in that: It includes at least one processor and a memory, which are connected via a data bus. The memory stores instructions that can be executed by the at least one processor. After being executed by the processor, the instructions are used to complete the cabinet and cable tray modeling method according to any one of claims 1-5.

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