Ratio calculation method for raw materials of three-dimensional model of sheet metal part

Abstract

The invention discloses a sheet metal part three-dimensional model raw material quota calculation method, and belongs to the technical field of three-dimensional models. Comprising the steps that S1, three-dimensional model software is connected with a raw material table, raw material table data and geometric parameters and material attributes of sheet metal parts in the three-dimensional model software are obtained, and the raw material table data comprise material data MA, thickness data MT, length data ML and width data MW; the geometrical parameters and material attributes of the sheet metal part comprise model material data PA, thickness data PT, expansion length data PL and expansion width data PW; s2, performing logic verification and calculation according to the material data MA, the thickness data MT, the length data ML, the width data MW, the model material data PA, the thickness data PT, the expanded length data PL and the expanded width data PW, and quoting the raw materials according to a calculation result; according to the method, the types and usage of raw materials needed by the sheet metal part can be rapidly obtained, the process quota calculation time is greatly shortened, and the process quota accuracy is improved.

Description

Technical Field

[0001] The invention relates to a method for calculating the raw material quota of a sheet metal part three-dimensional model, and belongs to the technical field of three-dimensional models. Background Art

[0002] With the development trend of digital cabinet prototype modeling, 3D software has become the main tool for prototype design. Due to the large variety of 3D models of cabinet sheet metal parts, in the traditional sheet metal design and manufacturing process, determining the amount of raw materials required for sheet metal parts is a complex and time-consuming process. Therefore, the raw material quota calculation method for sheet metal 3D models has become a necessary means for the preparation of sheet metal processing technology. How to quickly and accurately calculate the raw material consumption and selection of sheet metal 3D models has become the first task of the raw material quota of sheet metal 3D models.

[0003] The current practice is that process engineers need to manually calculate the unfolded length and width of each sheet metal part, and then look up the table to calculate according to the material, thickness, unfolded length and width of the sheet metal model to determine the required raw material selection and dosage. The disadvantages of this approach are: 1. Manual table lookup and calculation are required, which is inefficient; 2. Manual operation steps are relatively frequent and prone to errors. Summary of the invention

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a method for calculating the raw material quota of a sheet metal three-dimensional model, so as to solve the problem that the raw material quota of a sheet metal three-dimensional model cannot be calculated from a three-dimensional model in the prior art; In order to achieve the above purpose / solve the above technical problems, the present invention is implemented by adopting the following technical solutions: A method for calculating raw material quotas for a sheet metal three-dimensional model, the method comprising: Step S1, connecting the 3D model software with the raw material table, obtaining the raw material table data and the geometric parameters and material properties of the sheet metal parts in the 3D model software, wherein the raw material table data includes material data MA, thickness data MT, length data ML, and width data MW, and the geometric parameters and material properties of the sheet metal parts include material data PA, thickness data PT, unfolded length data PL, and unfolded width data PW; Step S2, perform logic verification and calculation based on the material data MA, thickness data MT, length data ML, width data MW and the material data PA, thickness data PT, unfolded length data PL, unfolded width data PW, and set the raw material quota based on the calculation results.

[0005] Optionally, in step S2, based on the raw material and the geometric parameters and material properties of the sheet metal part in the 3D model software, it is determined whether the geometric parameters and material properties of the sheet metal part in the 3D model software are within the range of the geometric parameters and material properties of the raw material.

[0006] Optionally, in step S1, the 3D model software finds the required raw material properties in the raw material table through an interface.

[0007] Optionally, in step S1, obtaining raw material table data and geometric parameters and material properties of the sheet metal part in the 3D model software includes: The 3D model software finds the required raw material attributes in the raw material table through the interface, and then searches for the attribute names of the keywords "material", "thickness", "length", and "width" from the raw material attributes, thereby obtaining the raw material material data MA, thickness data MT, length data ML, and width data MW in the raw material table; Then search the geometric parameters and material property parameters of the sheet metal 3D model from the 3D software, and read the sheet metal model material data PA, thickness data PT, unfolded length data PL, and unfolded width data PW information.

[0008] Optionally, in step S2, logic verification and calculation are performed according to the material data MA, thickness data MT, length data ML, width data MW and the model material data PA, thickness data PT, expanded length data PL, and expanded width data PW, including: Verify the raw material material data MA and the sheet metal model material data PA in the 3D model software. If the sheet metal model material data PA belongs to the raw material within the range of the raw material material data MA, the raw material material selection is accurate; if the sheet metal model thickness data PT is equal to the raw material thickness data MT, the raw material thickness selection is accurate; if the value of the raw material length data ML minus the sheet metal model unfolded length data PL is ΔL, ΔL=ML-PL, and ΔL≥X, X is the sheet metal processing allowance, then the raw material length selection is accurate; if the value of the raw material width data MW minus the sheet metal model unfolded width data PW is ΔW, ΔW=MW-PW, and ΔW≥X, X is the sheet metal processing allowance, then the raw material width selection is accurate.

[0009] Optionally, in step S2, logic verification and calculation are performed according to the material data MA, thickness data MT, length data ML, width data MW and the model material data PA, thickness data PT, expanded length data PL, and expanded width data PW, and the following further comprises: If no matching raw materials are found, the 3D software will pop up a window prompting "No matching raw materials, new materials are required"; If suitable raw materials are matched, the 3D software will start calculating the raw material consumption of the sheet metal part.

[0010] Optionally, the formula for calculating the raw material usage of sheet metal parts is as follows: The number of sheet metal parts that can be processed with unit raw material is n. After the sheet metal parts are unfolded, the processing allowance in the length and width directions is Xmm, then n=MAX(INT(ML / PL+X)*INT(MW / PW+X),INT(ML / PW+X)*INT(MW / PL+X)). The amount of raw materials used for a single sheet metal part is k, then k=1 / n.

[0011] Optionally, the three-dimensional model software adopts CREO software.

[0012] Compared with the prior art, the present invention has the following beneficial effects: The present invention realizes seamless connection between the data of the 3D model software and the raw material table through the interface development of the 3D model software, performs logic verification and calculation according to the geometric parameters and material properties of the raw materials and the sheet metal parts in the 3D model software, performs secondary development through the 3D model software, obtains the raw material data and the sheet metal material, thickness, unfolded length and unfolded width parameters in the 3D model, performs logic verification and calculation, and can quickly obtain the type and amount of raw materials required for the sheet metal parts, greatly reducing the calculation time of the process quota and improving the accuracy of the process quota. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The figure is a flow chart of the method for calculating raw material quota according to an embodiment of the present invention; Figure 2 Shown is a detailed flow chart of the raw material quota calculation method described in an embodiment of the present invention. DETAILED DESCRIPTION

[0014] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0015] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention 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 cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0016] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0017] like Figure 1 As shown, this embodiment provides a method for calculating the raw material quota of a sheet metal three-dimensional model, comprising the following steps: S1, connecting the three-dimensional model software with the raw material table.

[0018] S2. Obtain the raw material table data and the geometric parameters and material properties of the sheet metal parts in the 3D model software; obtain the material data MA, thickness data MT, length data ML, width data MW of the raw material and the sheet metal part model material data PA, thickness data PT, unfolded length data PL, unfolded width data PW in the 3D model software. S3. Perform logical verification and calculation based on the geometric parameters and material properties of the raw materials and the sheet metal parts in the 3D model software.

[0019] In this embodiment, the 3D model software is the main tool for cabinet prototype design, and the 3D model software is used to draw the 3D model of the sheet metal part. When calculating the quota of raw materials for the 3D model of the sheet metal part, step S1 includes: firstly, the 3D model software is connected with the data in the raw material table, and the 3D model software can find the required matching attributes in the raw material table through the interface.

[0020] In this embodiment, the three-dimensional model software adopts CREO software, so that the sheet metal three-dimensional model raw material quota calculation method can be used for different types of three-dimensional sheet metal model products, with a wide range of applications.

[0021] In this embodiment, step S2 includes: the 3D model software finds the required matching attributes in the raw material table through the interface, and then obtains the material data MA, thickness data MT, length data ML, and width data MW of the raw material from the raw material table data and the geometric parameters and material attributes of the sheet metal in the 3D model software. The 3D model software then searches for the geometric parameters and material attribute parameters of the 3D model of the sheet metal, and reads the sheet metal model material data PA, thickness data PT, unfolded length data PL, unfolded width data PW and other information.

[0022] Finally, logic verification and calculation are performed based on the geometric parameters and material properties of the raw materials and sheet metal parts in the 3D model software.

[0023] In an embodiment of the present invention, step S3 includes: verifying the raw material material data MA and the sheet metal model material data PA in the three-dimensional model software. If the sheet metal model material data PA belongs to the raw material within the range of the raw material material data MA, it means that the raw material material selection is accurate; if the sheet metal model thickness data PT is equal to the raw material thickness data MT of the raw material, it means that the raw material thickness selection is accurate.

[0024] If the value of the raw material length data ML minus the sheet metal model unfolded length data PL is ΔL, ΔL=ML-PL, and ΔL≥X, X is the sheet metal processing allowance, when X is 10, ΔL≥10, the unit is mm, then the raw material length selection is accurate.

[0025] If the value of the raw material width data MW minus the sheet metal model unfolded width data PW is ΔW, ΔW=MW-PW, and ΔW≥X, X is the sheet metal processing allowance, when X is 10, then ΔW≥10, the unit is mm, which means that the raw material width selection is accurate.

[0026] In this embodiment, logic verification and calculation are performed based on the obtained raw materials and the geometric parameters and material properties of the sheet metal part in the three-dimensional model software to obtain the raw material selection and usage of the sheet metal part three-dimensional model.

[0027] This embodiment realizes seamless connection between the data of the 3D model software and the raw material table through the interface development of the 3D model software, performs logical verification and calculation based on the geometric parameters and material properties of the raw materials and the sheet metal parts in the 3D model software, and performs secondary development through the 3D model software to obtain the raw material data and the sheet metal material, thickness, unfolded length and unfolded width parameters in the 3D model, and performs logical verification and calculation, so as to quickly obtain the type and amount of raw materials required for the sheet metal parts, greatly reduce the calculation time of the process quota, and improve the accuracy of the process quota.

[0028] like Figure 2 As shown, as part of the embodiment of the present invention, specifically, the method for calculating the raw material quota of the sheet metal three-dimensional model includes the following process: S1. CREO software is connected to the raw material table, and CREO retrieves the raw material information in the raw material table.

[0029] S21. CREO software finds the required matching attribute list in the raw material table through the interface.

[0030] S22. CREO software screens the attributes in the matching attribute list in the raw material table whose names contain keywords such as "material", "thickness", "length", "width", "raw material code", etc. S23, CREO software reads the value of the attribute, which is the raw material material data MA, thickness data MT, length data ML, width data MW, etc. in the raw material table; S24, CREO software reads the geometric parameters and material property parameters of the sheet metal 3D model, and reads the sheet metal model material data PA, thickness data PT, unfolded length data PL, unfolded width data PW and other information.

[0031] When calculating the raw material quota of the sheet metal 3D model, it is necessary to compare the raw material material data MA, thickness data MT, length data ML, width data MW in the raw material table with the sheet metal model material data PA, thickness data PT, unfolded length data PL, unfolded width data PW and other information in the CREO software, as shown in Table 1:

[0032] S30, using the attribute data in the raw material table as a reference, verifying and calculating the raw material attribute data and the parameter values ​​of the sheet metal three-dimensional model obtained in steps S23 and S24.

[0033] If the sheet metal model material data PA belongs to the raw material within the range of the raw material material data MA, it means that the raw material material selection is correct; if the sheet metal model thickness data PT is equal to the raw material thickness data MT, it means that the raw material thickness selection is correct; If the sheet metal model thickness data PT is equal to the raw material thickness data MT, it means that the raw material thickness selection is correct; if the value of the raw material length data ML minus the sheet metal model unfolded length data PL is ΔL, ΔL=ML-PL, and ΔL≥X, X is the sheet metal processing allowance, when X is 10, ΔL≥10, the unit is mm, it means that the raw material length selection is correct; If the value of the raw material width data MW minus the sheet metal model unfolded width data PW is ΔW, ΔW=MW-PW, and ΔW≥X, X is the sheet metal processing allowance, when X is 10, then ΔW≥10, the unit is mm, then the raw material width selection is accurate. (The allowance X during sheet metal processing can be set according to the actual processing situation). For example: as shown in Table 2.

[0034] Table 2:

[0035] S31. If no suitable raw materials are matched, the 3D software will pop up a window prompting "No suitable raw materials, new materials are required"; S32. If a suitable raw material is matched, the corresponding raw material code can be determined according to the selected raw material material, thickness, length and width (the raw material table is shown in Table 3), and the 3D software starts to calculate the raw material consumption of the sheet metal part. The number of sheet metal parts that can be processed per unit raw material is n. After the sheet metal part is unfolded, the processing allowance in the length and width direction is Xmm, then n=MAX(INT(ML / PL+X)*INT(MW / PW+X),INT(ML / PW+X)*INT(MW / PL+X)). The raw material consumption of a single sheet metal part is k, then k=1 / n. In specific implementation: when the length data ML of the raw material is 2500, the width data MW is 1250, the unfolded length data PL of the sheet metal 3D model is 360, the unfolded width data PW is 300, and the machining allowance in the length and width directions of the sheet metal is 10 after unfolding, then n=MAX(INT(2500 / 360+10)*INT(1250 / 300+10),INT(2500 / 300+10)*INT(1250 / 360+10))=32, indicating that the number of parts that can be processed per unit of raw material is 32 PC, and the raw material consumption of a single sheet metal part is k, then k=1 / 32=0.03125 PC, where PC is the raw material unit.

[0036] Table 3:

[0037] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A method for calculating the raw material quota of a sheet metal three-dimensional model, characterized in that: The method comprises: Step S1, connecting the 3D model software with the raw material table, obtaining the raw material table data and the geometric parameters and material properties of the sheet metal parts in the 3D model software, wherein the raw material table data includes material data MA, thickness data MT, length data ML, and width data MW, and the geometric parameters and material properties of the sheet metal parts include material data PA, thickness data PT, unfolded length data PL, and unfolded width data PW; Step S2, perform logic verification and calculation based on the material data MA, thickness data MT, length data ML, width data MW and the material data PA, thickness data PT, unfolded length data PL, unfolded width data PW, and set the raw material quota based on the calculation results.

2. The method for calculating the raw material quota of sheet metal three-dimensional model according to claim 1 is characterized in that: In step S2, based on the raw material and the geometric parameters and material properties of the sheet metal part in the 3D model software, it is determined whether the geometric parameters and material properties of the sheet metal part in the 3D model software are within the range of the geometric parameters and material properties of the raw material.

3. The method for calculating the raw material quota of sheet metal three-dimensional model according to claim 1, characterized in that: In step S1, the 3D model software finds the required raw material properties in the raw material table through an interface.

4. The method for calculating the raw material quota of sheet metal three-dimensional model according to claim 1, characterized in that: In step S1, the raw material table data and the geometric parameters and material properties of the sheet metal parts in the 3D model software are obtained, including: The 3D model software finds the required raw material attributes in the raw material table through the interface, and then searches for the attribute names of the keywords "material", "thickness", "length", and "width" from the raw material attributes, thereby obtaining the raw material material data MA, thickness data MT, length data ML, and width data MW in the raw material table; Then search the geometric parameters and material property parameters of the sheet metal 3D model from the 3D software, and read the sheet metal model material data PA, thickness data PT, unfolded length data PL, and unfolded width data PW information.

5. The method for calculating the raw material quota of sheet metal three-dimensional model according to claim 1, characterized in that: In step S2, logic verification and calculation are performed according to the material data MA, thickness data MT, length data ML, width data MW and the model material data PA, thickness data PT, expanded length data PL, and expanded width data PW, including: Verify the raw material material data MA and the sheet metal model material data PA in the 3D model software. If the sheet metal model material data PA belongs to the raw material within the range of the raw material material data MA, the raw material material selection is accurate; if the sheet metal model thickness data PT is equal to the raw material thickness data MT, the raw material thickness selection is accurate; if the value of the raw material length data ML minus the sheet metal model unfolded length data PL is ΔL, ΔL=ML-PL, and ΔL≥X, X is the sheet metal processing allowance, then the raw material length selection is accurate; if the value of the raw material width data MW minus the sheet metal model unfolded width data PW is ΔW, ΔW=MW-PW, and ΔW≥X, X is the sheet metal processing allowance, then the raw material width selection is accurate.

6. The method for calculating the raw material quota of sheet metal three-dimensional model according to claim 1, characterized in that: In step S2, logic verification and calculation are performed according to the material data MA, thickness data MT, length data ML, width data MW and the model material data PA, thickness data PT, expanded length data PL, and expanded width data PW, and the following steps are also included: If no matching raw materials are found, the 3D software will pop up a window prompting "No matching raw materials, new materials are required"; If suitable raw materials are matched, the 3D software will start calculating the raw material consumption of the sheet metal part.

7. The method for calculating the raw material quota of sheet metal three-dimensional model according to claim 6, characterized in that: The formula for calculating the raw material consumption of sheet metal parts is as follows: The number of sheet metal parts that can be processed with unit raw material is n. After the sheet metal parts are unfolded, the processing allowance in the length and width directions is Xmm, then n=MAX(INT(ML / PL+X)*INT(MW / PW+X),INT(ML / PW+X)*INT(MW / PL+X)). The amount of raw materials used for a single sheet metal part is k, then k=1 / n.

8. The method for calculating the raw material quota of a sheet metal three-dimensional model according to any one of claims 1 to 7, characterized in that: The three-dimensional model software adopts CREO software.

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