Method for automatically counting quantities of plate members of hydraulic metal structure

Abstract

The application discloses a method for automatically counting the quantity of plate components of a hydraulic metal structure, and relates to the field of hydraulic metal structure design. The method comprises the following steps: using a 3DE platform to design a three-dimensional model of a product, searching a structure tree of the three-dimensional model, and obtaining all plate component geometries of the product. The plate component geometries each comprise a main forming feature, a sketch contour, a secondary forming feature and a material list parameter set. The main forming feature form and feature value are obtained, the contour size of the plate component geometry is identified and calculated, the specification size of the plate component geometry is expressed by the product of the feature value and the contour size, the material and density of the plate component geometry are obtained, the single weight of the plate component geometry is obtained by multiplying the product of the specification size and the product of the density, the quantity of the plate components required by the product is counted, and the problem that the quantity of the plate components is time-consuming and laborious in the prior art is solved. The application is suitable for counting the quantity of the plate components.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of hydraulic metal structure design, in particular to a method for automatically counting the engineering quantity of plate members of a hydraulic metal structure. BACKGROUND

[0002] The design of a hydraulic metal structure is mainly product design, and for the convenience of processing and manufacturing, the size specification, unit weight, quantity and total weight of plate members need to be counted in the engineering quantity list. The most important thing in the engineering quantity list counting is the size specification of plate members, i.e. the length, width, height or diameter of a round plate. The counted size specification is different from the designed size specification, and the counted size specification not only needs to be suitable for processing and manufacturing, but also needs to have a reasonable processing allowance.

[0003] The plate members involved in the hydraulic metal structure equipment are of various types, and different types of plate members need to be calculated in different ways. In the two-dimensional design process, the plate members in engineering drawings are only presented by connecting simple point and line elements, so in the current two-dimensional design, the engineering quantity of plate members can only be counted manually by designers, which not only consumes time, but also is prone to errors.

[0004] With the gradual trend and mainstream of three-dimensional design in the engineering industry and the rapid development and application of BIM technology, the current three-dimensional design software such as 3DE platform makes the components of the model more clear by creating a parametric model and associating the skeleton, and the modeling data is identifiable and readable. Therefore, in the current three-dimensional design, designers can quickly find the created three-dimensional model and its component geometry, model geometry data and component quantity through the structure tree of the 3DE platform. Although the engineering quantity counting of plate members is more efficient than two-dimensional design based on three-dimensional design and BIM technology, due to the particularity of plate member size specification counting, engineering quantity counting still needs manual operation, which is tedious. SUMMARY

[0005] The technical problem solved by the present application is to provide a method for automatically counting the engineering quantity of plate members of a hydraulic metal structure, which solves the problem of time-consuming and laborious engineering quantity counting of plate members in the prior art.

[0006] The technical solution adopted by the present application to solve the above technical problem is a method for automatically counting the engineering quantity of plate members of a hydraulic metal structure, comprising the following steps:

[0007] S01, select the product in the 3DE platform three-dimensional model, and retrieve the structure tree of three-dimensional model, obtain all the plate component geometry of three-dimensional model; the structure tree includes a plurality of plate component geometry, each plate component geometry includes main forming feature, sketch contour, secondary forming feature and material list parameter set; the main forming feature includes main forming feature form and feature value, the main forming feature form includes boss, rotating body and rib; the secondary forming feature includes hole, chamfer and edge fillet; the material list parameter set includes the material and density of plate component geometry, and is attached with parameter value;

[0008] S02, according to the main forming feature of plate component geometry, the main forming feature form and feature value of the plate component geometry are obtained;

[0009] S03, according to the sketch contour, the contour size of plate component geometry is identified and calculated, and the contour size is not less than the minimum size of processing and manufacturing the geometry;

[0010] S04, the specification size of plate component geometry is expressed by the product of feature value and contour size;

[0011] S05, according to the material list parameter set, the material and density of plate component geometry are obtained;

[0012] S06, the single weight of plate component required by plate component geometry is obtained by the product of the result of specification size product and the product of density;

[0013] S07, the single weight of plate component required by all plate component geometries in the product is calculated;

[0014] S08, the plate component with the same specification size and single weight is regarded as the same plate component, and the engineering quantity of plate component required by the product is counted.

[0015] Further, in S02, if the main forming feature of the geometry is boss, the feature value of the geometry is the total length of boss stretching; if the main forming feature of the geometry is rotating body, the feature value of the geometry is the product of rotating angle and maximum radius of rotation; if the main forming feature of the geometry is rib, the feature value of the geometry is the center curve length of rib.

[0016] Further, in S03, the contour size of the main forming feature includes length, width or diameter.

[0017] Further, in S03, identifying and calculating the contour size of the main forming feature includes the following steps:

[0018] S301, the sketch contour is divided into ordinary plate part contour, special plate part contour and profile steel part contour; the ordinary plate part contour includes circle, rectangle and circular ring; the special plate part contour includes arc contour, arc panel contour and bending part contour; the profile steel part contour includes fixed number of straight line segments and / or arc line segments;

[0019] S302, for the ordinary plate part contour, the contour size is obtained according to the line of the sketch; for the special plate part contour, the length of the arc line is taken as the contour size, and the longest distance occupied by the plate component in the direction of the vertical length is taken as the width; for the profile steel part contour, firstly, the number of straight lines and arc lines of the contour is identified to preliminarily determine the type of the profile steel, then the length and height of the contour are used to determine the specific model of the contour, finally, the cross-sectional area of the sketch contour is compared with the standard cross-sectional area of the model contour to verify whether they match, if not, the contour is processed as the special plate part contour, and if yes, the category and model of the profile steel part can be determined.

[0020] Further, the required plate component quantity of the product includes the specification size, material, quantity and total weight of the required plate component of the product.

[0021] The method for automatically counting the plate component quantity of the hydraulic metal structure of the application has the following beneficial effects: the method for automatically counting the plate component quantity of the hydraulic metal structure of the application uses the 3DE platform to design the three-dimensional model of the product, retrieves the structure tree of the three-dimensional model, obtains all the plate component geometries of the product, and the plate component geometries all include the main forming feature, sketch contour, secondary forming feature and material list parameter set; the main forming feature form and feature value are obtained according to the main forming feature; the contour size of the plate component geometry is identified and calculated according to the sketch contour; the specification size of the plate component geometry is represented by the product of the feature value and the contour size; the material and density of the plate component geometry are obtained according to the material list parameter set; the single weight of the required plate component of the plate component geometry is obtained by multiplying the product of the specification size with the density; the single weight of the required plate component of all the plate component geometries in the product is calculated; the plate components with the same specification size and single weight are regarded as the same plate component; the required plate component quantity of the product is counted; and the problem that the plate component quantity is time-consuming and laborious in the prior art is solved. BRIEF DESCRIPTION OF DRAWINGS

[0022] FIG. 1 is a flowchart of the method for automatically counting the plate component quantity of the hydraulic metal structure of the application. Figure 1 FIG. 1 is a flowchart of the method for automatically counting the plate component quantity of the hydraulic metal structure of the application.

[0023] FIG. 2 is a schematic diagram of the structure tree in the method for automatically counting the plate component quantity of the hydraulic metal structure of the application. Figure 2 FIG. 2 is a schematic diagram of the structure tree in the method for automatically counting the plate component quantity of the hydraulic metal structure of the application.

[0024] FIG. 3 is a schematic diagram of the ordinary plate part contour in the method for automatically counting the plate component quantity of the hydraulic metal structure of the application. Figure 3 FIG. 3 is a schematic diagram of the ordinary plate part contour in the method for automatically counting the plate component quantity of the hydraulic metal structure of the application.

[0025] Figure 2 is a schematic diagram of an arc-shaped contour in the method for automatically counting the quantities of plate members of a hydraulic metal structure according to the present application. Figure 4

[0026] Figure 3 is a schematic diagram of an arc-shaped surface contour in the method for automatically counting the quantities of plate members of a hydraulic metal structure according to the present application. Figure 5

[0027] Figure 4 is a schematic diagram of a bending part contour in the method for automatically counting the quantities of plate members of a hydraulic metal structure according to the present application. Figure 6

[0028] Figure 5 is a schematic diagram of a plate member quantity display result in the method for automatically counting the quantities of plate members of a hydraulic metal structure according to the present application. Figure 7 DETAILED DESCRIPTION

[0029] The method for automatically counting the quantities of plate members of a hydraulic metal structure according to the present application, as shown in Figure 1, comprises the following steps: Figure 1

[0030] S01, selecting a product three-dimensional model on a 3DE platform, and retrieving a structure tree of the three-dimensional model to obtain all plate member geometries of the three-dimensional model; the structure tree comprises a plurality of plate member geometries, each plate member geometry comprises a main forming feature, a sketch contour, a secondary forming feature, and a material list parameter set; the main forming feature comprises a main forming feature form and a feature value, the main forming feature form comprises a boss, a rotating body, and a rib; the secondary forming feature comprises a hole, a chamfer, and an edge fillet; the material list parameter set comprises a material and a density of the plate member geometry, and is attached with a parameter value;

[0031] Specifically, the structure tree is as shown in Figure 2. Figure 2

[0032] S02, obtaining the main forming feature form and the feature value of the plate member geometry according to the main forming feature of the plate member geometry;

[0033] Specifically, if the main forming feature of the geometry is a boss, the feature value of the geometry is the total length of the boss stretching; if the main forming feature of the geometry is a rotating body, the feature value of the geometry is the product of the rotating angle and the maximum radius of rotation; if the main forming feature of the geometry is a rib, the feature value of the geometry is the center curve length of the rib, in particular, the feature value is equivalent to the "thickness" of the plate member.

[0034] S03, identifying and calculating the contour size of the plate member geometry according to the sketch contour, the contour size is not less than the minimum size for processing and manufacturing the geometry;

[0035] ​​​​​​Specifically, the profile size of the main forming feature includes length, width or diameter;

[0036] The identifying and calculating the profile size of the main forming feature includes the following steps:

[0037] S301, dividing the sketch profile into ordinary plate piece profile, special plate piece profile and profile of section steel piece; the ordinary plate piece profile includes circle, rectangle and circular ring; the special plate piece profile includes arc profile, arc panel profile and bending piece profile; the profile of section steel piece includes a fixed number of straight line segments and / or arc line segments;

[0038] S302, for the ordinary plate piece profile, the profile size is obtained according to the line of the sketch,

[0039] Specifically, the ordinary plate piece profile is as shown in the accompanying drawings, Figure 3 For a circle, the profile size is represented by diameter φ, for a rectangle, the profile size is represented by the product of the length L and the width B of the rectangle, that is, L×B, and for a circular ring, the profile size is represented by the diameter of two circles, that is, φ1 / φ2;

[0040] For the special plate piece profile, the arc line length is taken as the length of the profile size, and the longest distance of the plate component in the direction perpendicular to the length is taken as the width;

[0041] Specifically, the arc profile is as shown in the accompanying drawings, Figure 4 The arc profile is composed of a circular arc and three straight line segments, and the profile size is represented as: Y a ×L a , wherein Y a represents the length of the arc segment AD, which can also represent the length of the straight line segment AD, L a represents the longest distance of the plate component in the direction perpendicular to the length;

[0042] The arc panel profile is as shown in the accompanying drawings, Figure 5 The arc panel profile is composed of two concentric circular arcs and two straight line segments connecting the circular arcs, and the profile size is represented as: B C ×L C , wherein B C represents the longest arc line of the two concentric circular arcs, and L C represents the radius difference of the concentric circles;

[0043] The bending piece profile is composed of multiple concentric circular arcs, multiple straight line segments between the circular arcs, and two connecting straight line segments, as shown in the accompanying drawings, Figure 6 The profile size of the bending piece profile is represented as: B b ×L b , wherein B b represents the total length of the outer straight line segment and the arc line, and L b represents the maximum distance between the outer side and the inner side;

[0044] For the profile of the section steel, firstly, the number of straight line and arc line segment of the profile is identified to preliminarily determine the type of the section steel, then the specific model of the profile is determined according to the length and height of the profile, finally, the cross-sectional area of the sketch profile is compared with the standard cross-sectional area of the profile of the model to verify, if the verification does not match, the profile is processed as the profile of the special plate member, if the verification matches, the category and model of the section steel can be determined.

[0045] Specifically, the profile size of the section steel is represented as S.

[0046] S04, the size of the plate member geometry is represented by the product of the characteristic value and the profile size;

[0047] Specifically, this way of representing the size is intuitive and clear, and the volume of the plate is represented by the result of the product.

[0048] S05, the material and density of the plate member geometry are obtained according to the material list parameter set;

[0049] Specifically, the material name in the material list is taken as the search content, and the material list parameter set is searched to obtain the material and density of the plate member required by the plate member geometry.

[0050] S06, the single weight of the plate member required by the plate member geometry is obtained by multiplying the result of the size product by the density;

[0051] Specifically, the result of the size product is the volume of the plate member required by the plate member geometry, and the mass is obtained by multiplying the density, and the single weight refers to the mass of the plate member of the same size and material required by one plate member geometry.

[0052] S07, the single weight of the plate member required by all plate member geometries in the product is calculated;

[0053] Specifically, for each plate member geometry, the single weight of the plate member required by the plate member geometry is calculated through steps S02-S06, based on which, the plate member geometries can be sequentially cycled by using a software program to sequentially obtain the single weight of the plate member required by each plate member geometry.

[0054] S08, the plate members with the same size and single weight are regarded as the same plate member, and the engineering quantity of the plate member required by the product is counted.

[0055] Specifically, the engineering quantity of the plate member required by the product includes the size, material, quantity and total weight of the plate member required by the product, and the display result of the engineering quantity of the plate member required by a product is shown in FIG. Figure 7

[0056] ​Through the technical scheme of the application, the engineering quantity of the water conservancy metal structure plate component can be automatically counted, the problem that the engineering quantity of the plate component is counted in the prior art is solved, and compared with the prior art of counting the engineering quantity of the plate component manually, the application saves time and reduces the error rate.

Claims

1. A method for automatically calculating the quantities of hydraulic engineering metal structure plate components, characterized in that, Includes the following steps: S01. Select the 3D model of the product on the 3DE platform and retrieve the structure tree of the 3D model to obtain all the sheet metal component geometries of the 3D model; the structure tree includes multiple sheet metal component geometries, each sheet metal component geometry includes a primary forming feature, a sketch outline, a secondary forming feature, and a bill of materials parameter set; the primary forming feature includes the primary forming feature form and feature value, the primary forming feature form includes bosses, bodies of revolution, and ribs; the secondary forming features include holes, chamfers, and edge fillets; the bill of materials parameter set includes the material and density of the sheet metal component geometry, with parameter values ​​attached; S02. Based on the main forming features of the sheet metal component geometry, obtain the main forming feature form and feature value of the sheet metal component geometry; S03. Based on the sketch outline, identify and calculate the outline dimensions of the sheet metal component geometry, wherein the outline dimensions are not less than the minimum dimensions required for manufacturing the geometry; S04. The geometric dimensions of sheet metal components are represented by the product of characteristic values ​​and contour dimensions. S05. Obtain the material and density of the sheet metal component geometry based on the material list parameter set; S06. The product of the product of the specifications and the product of the density is used to obtain the unit weight of the sheet metal component required for the geometry of the sheet metal component. S07. Calculate the unit weight of all sheet metal components required for the geometry of all sheet metal components in the product; S08. Treat sheet metal components with the same specifications, dimensions, and unit weight as identical sheet metal components and calculate the required sheet metal component quantities for the product.

2. The method for automatically calculating the quantities of hydraulic metal structure plate components according to claim 1, characterized in that, In S02, if the main forming feature of the geometry is a boss, then the characteristic value of the geometry is the total length of the boss stretching; if the main forming feature of the geometry is a body of revolution, then the characteristic value of the geometry is the product of the rotation angle and the maximum rotation radius; if the main forming feature of the geometry is a rib, then the characteristic value of the geometry is the length of the center curve of the rib.

3. The method for automatically calculating the quantities of hydraulic metal structure plate components according to claim 1, characterized in that, In S03, the contour dimensions of the main forming feature include length, width, or diameter.

4. The method for automatically calculating the quantities of hydraulic metal structure plate components according to claim 1, characterized in that, In S03, identifying and calculating the contour dimensions of the main forming feature includes the following steps: S301. The sketch outline is divided into ordinary sheet metal part outline, special sheet metal part outline and steel profile part outline; the ordinary sheet metal part outline includes circles, rectangles and annulus; the special sheet metal part outline includes arc outline, arc panel outline and bent part outline; the steel profile part outline includes a fixed number of straight line segments and / or arc segments. S302. For the outline of ordinary sheet metal parts, the outline dimensions are obtained by identifying the lines in the sketch. For the outline of special sheet metal parts, the length of the arc is used as the length of the outline dimension, and the longest distance occupied by the sheet metal component in the vertical direction is the width. For the outline of steel profiles, firstly, the number of straight and arc segments of the outline is identified to preliminarily determine the type of steel profile. Then, the specific model of the outline is determined according to the length and height of the outline. Finally, the cross-sectional area of ​​the sketch outline is compared with the standard cross-sectional area of ​​the outline of this model for verification. If the verification does not match, the outline is treated as a special sheet metal part outline. If the verification matches, the category and model of this steel profile can be determined.

5. The method for automatically calculating the quantities of hydraulic engineering metal structure plate components according to any one of claims 1-4, characterized in that, The required sheet metal components for the product include the specifications, dimensions, materials, quantity, and total weight of the required sheet metal components.

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