Part mapping method and system for cable conduit perforation

Abstract

The invention provides a part mapping method and system for cable conduit perforation, and relates to the technical field of bridge manufacturing, and the part mapping method for cable conduit perforation comprises the steps: carrying out the overall cutting of a cable conduit in a three-dimensional model of a bridge tower and a tower wall where the cable conduit is located, and obtaining a pipe wall unit; based on different parts and nodes of the bridge tower, naming the pipe wall units to obtain serial numbers corresponding to the pipe wall units; obtaining a two-dimensional view corresponding to the pipe wall unit with the serial number based on the pipe wall unit with the serial number; relative position data of the pipe wall units in the three-dimensional model are extracted; the relative position data are correspondingly marked in the two-dimensional view, a deepened drawing is obtained, and the deepened drawing is used for guiding field machining and manufacturing. According to the invention, the manual intervention is reduced, the time consumption is reduced, the positioning difficulty is also reduced, and the manufacturing precision is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of bridge manufacturing, and in particular to a parts mapping method and system for cable conduit perforation. Background Art

[0002] During the construction of a cable-stayed bridge, the positioning of the cable duct is a task that requires high precision and is difficult, and has a significant impact on the quality of the completed bridge. The cable duct, as a component for protecting and fixing the cable, is distributed at both ends of the cable and is pre-buried in the main beam and main tower respectively.

[0003] During the manufacturing process of bridge towers, it often takes a lot of time to calculate the perforation angle and manufacturing accuracy of the plate wall through which the cable guide tube passes. Since the angle and spatial orientation of the cable guide tube are relatively complex, this stage is time-consuming and labor-intensive. In order to ensure the installation accuracy requirements in actual manufacturing, when the relevant process drawings are drawn, each cable guide tube is often positioned and fitted manually, which is time-consuming, low-precision and difficult to apply to precise manufacturing. Summary of the invention

[0004] The present invention aims to solve the problem that currently when the relevant process drawings are produced, each cable guide part is manually positioned and fitted, which is time-consuming, low-precision and difficult to be applied to precise manufacturing.

[0005] To solve the above problems, in a first aspect, the present invention provides a part drawing method for cable conduit perforation, comprising:

[0006] Integrally cutting the cable guide tube and the tower wall where the cable guide tube is located in the three-dimensional model of the bridge tower to obtain a tube wall unit;

[0007] Based on different parts and nodes of the bridge tower, the pipe wall units are named to obtain numbers corresponding to the pipe wall units;

[0008] Based on the tube wall unit with the number, acquiring a two-dimensional view corresponding to the tube wall unit with the number;

[0009] Extracting relative position data of the pipe wall unit in the three-dimensional model;

[0010] The relative position data are marked correspondingly in the two-dimensional view to obtain a detailed drawing, and the detailed drawing is used to guide on-site processing and manufacturing.

[0011] Optionally, the integrally cutting the cable guide tube and the tower wall where the cable guide tube is located in the three-dimensional model of the bridge tower to obtain the tube wall unit comprises:

[0012] Determining a corresponding section division template according to the type of the anchor box in the three-dimensional model;

[0013] querying the three-dimensional model according to the section partitioning template to determine the sections of all anchor boxes;

[0014] Determining a cutting range of the pipe wall unit based on the pipeline identification of the cable conduit and the cross section;

[0015] The three-dimensional model is cut according to the cutting range to obtain the pipe wall unit, which includes a wall panel unit.

[0016] Optionally, the tube wall units are named based on different parts and nodes of the bridge tower to obtain numbers corresponding to the tube wall units, including:

[0017] Determine the parts included in the pipe wall unit, and obtain the installation positions and connection nodes of the parts;

[0018] Obtaining the serial number of the section dividing template where the pipe wall unit is located;

[0019] Based on the serial number, the installation location and the connection node, a serial number corresponding to the pipe wall unit is determined.

[0020] Optionally, extracting the relative position data of the pipe wall unit in the three-dimensional model includes:

[0021] Acquire a reference surface in the three-dimensional model, and mark the pipe wall unit in the three-dimensional model;

[0022] Identify the marked boundary of the pipe wall unit and extract geometric elements of the boundary, wherein the geometric elements include line segments and circles;

[0023] The geometric elements whose corresponding lengths are greater than a preset length are screened, and the relative position data between the screened geometric elements and a reference surface or a connected structure are determined.

[0024] Optionally, the screening of the geometric elements whose corresponding lengths are greater than a preset length, and determining the relative position data between the screened geometric elements and a reference surface or a connected structure comprises:

[0025] Screening circles with diameters larger than a preset diameter, and projecting the screened circles onto the reference surface to obtain a projected shape;

[0026] Identifying first relative position data of the projected shape relative to the reference surface;

[0027] Screening the line segments whose lengths are greater than a preset distance, and picking up the connected structures connected to the ends of the line segments;

[0028] identifying second relative position data of the line segment relative to the connected structure;

[0029] The relative position data includes first relative position data and second relative position data.

[0030] Optionally, the acquiring, based on the pipe wall unit with the number, a two-dimensional view corresponding to the pipe wall unit with the number comprises:

[0031] The tube wall unit is projected according to a set viewing angle, and the projection result is matched with the number of the corresponding tube wall unit to obtain the two-dimensional view corresponding to the tube wall unit with the number.

[0032] Optionally, the three-dimensional model of the bridge tower is pre-established, and the step of pre-establishing the three-dimensional model of the bridge tower includes:

[0033] Establish the datum line of the bridge tower's central axis;

[0034] Taking the central axis reference line as a reference, establishing multiple bridge tower sections at different heights;

[0035] Importing the positioning data of the cable conduit in the form of a design table, generating a conduit line in each of the bridge tower sections based on the positioning data, and performing sweeping based on the conduit line to form the cable conduit with a wall thickness in each of the bridge tower sections;

[0036] The cross section of the bridge tower with the cable guide tube is fitted, and auxiliary partitions and reinforcing ribs are established to obtain the three-dimensional model of the bridge tower.

[0037] Optionally, after the relative position data is marked in the two-dimensional view to obtain a detailed drawing, the method further includes:

[0038] Counting the cutting allowances of the guide cable holes based on the detailed drawings to obtain a two-dimensional allowance, wherein the cutting allowances of the guide cable holes based on the detailed drawings to obtain a two-dimensional allowance, wherein the cutting allowances of the guide cable holes are the cutting allowances when at least two sections of the cable guide tubes are spliced ​​in the guide cable holes;

[0039] Acquire the cable hole splicing margin based on the three-dimensional model of the bridge tower to obtain a three-dimensional margin;

[0040] The two-dimensional surplus and the three-dimensional surplus are compared, and a surplus material management database is constructed according to the comparison result.

[0041] Optionally, the part drawing method for cable conduit perforation further includes:

[0042] Based on the wall panel unit, the angle template is virtually fixed in advance;

[0043] Based on the virtually fixed angle template, the wall panel unit is overlapped with the concrete formwork model, and the overlap error between the two is detected;

[0044] The position of the angle template for virtual fixing is adjusted according to the overlap error until the overlap error meets the preset error accuracy.

[0045] The present invention forms a tube wall unit by cutting out a cable guide tube and a tower wall where the cable guide tube and the tower wall where the cable guide tube and the tower wall where the cable guide tube are located in the established three-dimensional model of the bridge tower. The bridge tower model is assembled by a plurality of anchor boxes through their cross sections. The cutting process ensures that the cable guide tube and the preset part of the tower wall where the cable guide tube and the tower wall where the cable guide tube are located are completely extracted. The tube wall units are named and numbered according to different parts and installation nodes of the bridge tower, which can cover the components of the tube wall units and their specific installation positions, so that different parts and nodes can be distinguished. For each tube wall unit with a number, a projection of a specific viewing angle is performed to generate a corresponding two-dimensional view, which ensures that the structure and position relationship of the tube wall unit can be intuitively reflected. The relative position data of the tube wall unit are extracted from the three-dimensional model, which may include distance, height and inclination, etc. The acquisition of these relative position data provides a basis for the subsequent precise manufacturing and position determination of the tube wall unit. The extracted relative position data is marked in the two-dimensional view to generate a detailed drawing, which can provide detailed guidance for the on-site manufacturing and processing of the tube wall unit containing the plate structure, and is suitable for the precise positioning of the non-standard hole position of the cable guide tube in the tube wall unit, thereby reducing manual intervention, thereby reducing time consumption, reducing positioning difficulty, and facilitating the improvement of manufacturing accuracy.

[0046] In a second aspect, the present invention further provides a plate-type parts mapping system for cable conduit perforation, using the plate-type parts mapping method for cable conduit perforation as described in any one of the above items, comprising:

[0047] A cutting module, used for integrally cutting the cable guide tube and the tower wall where the cable guide tube is located in the three-dimensional model of the bridge tower to obtain a tube wall unit;

[0048] A numbering module, used for naming the pipe wall units based on different parts and nodes of the bridge tower to obtain numbers corresponding to the pipe wall units;

[0049] An acquisition module, configured to acquire, based on the pipe wall unit with the number, a two-dimensional view corresponding to the pipe wall unit with the number;

[0050] An extraction module, used for extracting the relative position data of the pipe wall unit in the three-dimensional model;

[0051] The marking module is used to mark the relative position data in the two-dimensional view to obtain a detailed drawing, and the detailed drawing is used to guide on-site processing and manufacturing.

[0052] In a third aspect, the present invention provides an electronic device, including a memory and a processor;

[0053] The memory is used to store computer programs;

[0054] The processor is used to implement the part drawing method for cable conduit perforation as described in the first aspect when executing the computer program.

[0055] In a fourth aspect, the present invention provides a computer-readable storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the part drawing method for cable conduit perforation as described in the first aspect is implemented.

[0056] The plate parts mapping system, electronic device and computer-readable storage medium for cable conduit perforation provided by the present invention have the same beneficial effects as the parts mapping method for cable conduit perforation relative to the prior art, which will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] Figure 1 A schematic flow chart of a part drawing method for cable conduit perforation in an embodiment of the present invention is shown;

[0058] Figure 2 A schematic diagram showing the comparative structures of different segments of the anchor box in the longitudinal direction and the transverse direction of the bridge in an embodiment of the present invention is shown;

[0059] Figure 3 A schematic diagram of the model structure of the pipe wall unit from which data is to be extracted in an embodiment of the present invention is shown;

[0060] Figure 4 A schematic diagram showing data extracted from a pipe wall unit in an embodiment of the present invention is shown;

[0061] Figure 5 It shows a first annotation schematic diagram of a detailed drawing in an embodiment of the present invention;

[0062] Figure 6 It shows a second annotation schematic diagram of a detailed drawing in an embodiment of the present invention;

[0063] Figure 7 A technical roadmap of another embodiment of the present invention is shown;

[0064] Figure 8 A schematic structural diagram of a plate-type parts mapping system for cable guide pipe perforation according to an embodiment of the present invention is shown;

[0065] Fig. 9 A schematic diagram of the structure of an electronic device in an embodiment of the present invention is shown. DETAILED DESCRIPTION

[0066] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0067] It should be noted that, in the present invention, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0068] In the description of this specification, the description with reference to the terms "embodiment", "one embodiment" and "one implementation" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or implementation are included in at least one embodiment or implementation of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or implementation. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or implementations in a suitable manner.

[0069] Reference Figure 1 As shown, an embodiment of the present invention provides a part drawing method for cable conduit perforation, and the part drawing method for cable conduit perforation includes:

[0070] S100: Integrally cutting the cable guide tube and the tower wall where the cable guide tube is located in the three-dimensional model of the bridge tower to obtain a tube wall unit.

[0071] Specifically, the three-dimensional model of the bridge tower can be established in advance. The bridge tower is assembled from multiple anchor boxes (multiple anchor boxes are connected by sections), and the tower wall exists in the section of the anchor box. The cable duct and the tower wall on which it is located are cut as a whole, that is, the part of the cable duct at the section and the section of a preset size are cut off as a whole, and a tube wall unit can be obtained.

[0072] S200: Naming the pipe wall units based on different parts and nodes of the bridge tower to obtain numbers corresponding to the pipe wall units.

[0073] Specifically, different parts of the bridge tower can represent different bridge tower height positions, and the nodes represent the installation nodes, so the resulting names include the component composition and installation position of the tower wall unit, and the numbers are used to distinguish different parts and nodes.

[0074] S300: Based on the tube wall unit with the number, acquire a two-dimensional view corresponding to the tube wall unit with the number.

[0075] Specifically, after obtaining the tube wall units with numbers, the tube wall units are projected at a certain viewing angle to obtain a two-dimensional view, which corresponds to the tube wall units and therefore should also correspond to the numbers.

[0076] S400: extracting relative position data of the pipe wall unit in the three-dimensional model;

[0077] Specifically, the pipe wall unit has a relative position with respect to the three-dimensional model, such as a relative distance, height or even inclination relative to a reference surface in the three-dimensional model, thereby forming relative position data. This relative position data can be used as a basis for determining the position of parts in the pipe wall unit, and therefore can naturally be used as a position reference for the manufacture and installation of the cable guide tube in the pipe wall unit.

[0078] S500: Marking the relative position data in the two-dimensional view to obtain a detailed drawing, which is used to guide on-site processing and manufacturing.

[0079] Specifically, the relative position data are marked one by one in the two-dimensional view, and finally a detailed drawing is obtained. The so-called detailed drawing can be applied to the on-site manufacturing and processing of the pipe wall unit, especially the manufacturing of the pipe wall unit containing the plate structure, and for the unconventional holes formed by the cable guide tube on the pipe wall unit, no manual positioning and fitting are required.

[0080] When this embodiment is applied in practice, the cable guide tube and the tower wall where it is located are cut out in the established three-dimensional model of the bridge tower to form a tube wall unit. The bridge tower model is assembled by multiple anchor boxes through their sections. The cutting process ensures that the cable guide tube and the preset part of the tower wall where it is located are completely extracted. The tube wall units are named and numbered according to different parts and installation nodes of the bridge tower, which can cover the components of the tube wall units and their specific installation positions, so that different parts and nodes can be distinguished. For each tube wall unit with a number, a specific viewing angle is projected to generate a corresponding two-dimensional view. The two-dimensional view ensures that the structure and position relationship of the tube wall unit can be intuitively reflected. The relative position data of the tube wall unit are extracted from the three-dimensional model, which may include distance, height, inclination, etc. The acquisition of these relative position data provides a basis for the subsequent precise manufacturing and position determination of the tube wall unit. The extracted relative position data is marked in the two-dimensional view to generate a detailed drawing, which can provide detailed guidance for the on-site manufacturing and processing of the tube wall unit containing the plate structure, and is suitable for the precise positioning of the non-standard hole position of the cable guide tube in the tube wall unit, reducing manual intervention, thereby reducing time consumption, reducing positioning difficulty, and facilitating improving manufacturing accuracy.

[0081] The detailed drawings quickly formed by the present invention can be used as detailed process drawings for manufacturing special-shaped perforated plates of cable guide tubes, and can fully solve the key and difficult problems in manufacturing lower plate parts of outer wall plates perforated by cableway tubes at irregular angles in three-dimensional space, thereby improving production efficiency and saving most of the time of detailed drawing personnel. It serves as a good reference for the subsequent manufacture of similar bridges, greatly reduces the workload and work difficulty of two-dimensional drawing personnel, embodies the idea of ​​intelligent design, reduces costs, and can achieve precise manufacturing.

[0082] As an optional embodiment of the present invention, the cable conduit in the three-dimensional model of the bridge tower and the tower wall where the cable conduit is located are integrally cut to obtain the conduit wall unit, including:

[0083] Determining a corresponding section division template according to the type of the anchor box in the three-dimensional model;

[0084] querying the three-dimensional model according to the section partitioning template to determine the sections of all anchor boxes;

[0085] Taking the design of a steel tower project as an example, the central axis of the steel tower is at an angle of 62.2° with the longitudinal direction of the bridge (i.e. the extension direction of the outer contour of the bridge) and 76.8° with the transverse direction of the bridge (i.e. the width direction of the bridge). The tower column axis is 87.445m long, and the cross-section gradually changes from 5.2m×8.5m to 3.2m×4m. A partition is arranged horizontally every 2m in height inside the steel tower.

[0086] During modeling, several characteristic steel anchor boxes will be selected according to the design intent to make templates. For example, if there are three characteristics, three templates will be created, and each template contains different section divisions. Then there is a module called Knowledge Engineering Matrix in CATIA. In this module, scripts can be written to automatically generate the created templates at the designed position according to the design positioning. For example, Template 1 has 10, Template 2 has 20, and Template 3 has 30. Query in the 3D model to display the sections containing all anchor boxes.

[0087] Determining a cutting range of the pipe wall unit based on the pipeline identification of the cable conduit and the cross section;

[0088] In the template created above, different panels will be labeled in the same way, for example, the small label after WB is different. Therefore, when writing the extraction script, you can query it, and only this part will be cut when the outer wall panel is cut. Specifically, when cutting, the pipeline identification is included in the name of the pipe wall unit, and the cross-sectional shape of the pipeline exists. When cutting, the preset area and preset thickness are generally met to obtain the cutting range.

[0089] "Query" function: used to search for features located below the applied feature, as well as to validate the specified expression and add the found objects to a list. All product instances (including invisible ones) and their references are returned.

[0090] The three-dimensional model is cut according to the cutting range to obtain the pipe wall unit, which includes a wall panel unit.

[0091] Specifically, the designed pipe diameter is appropriately increased, and the cutting is performed according to the automatic Boolean operation in the model generated by CATIA. It can be generated without human intervention. The pipe wall unit appears in the form of a plate, which can cover most of the pipe wall and can adapt to the actual needs in the anchor box.

[0092] When this embodiment is applied in practice, the cross section of the anchor box is searched and identified based on the template, and the cross section is determined accordingly, so that the cross sections of all anchor boxes can be quickly determined and the cross section including the cable guide tube can be cut to obtain the tube wall unit.

[0093] As an optional embodiment of the present invention, the tube wall units are named based on different parts and nodes of the bridge tower to obtain the numbers corresponding to the tube wall units, including:

[0094] Determine the parts included in the pipe wall unit, and obtain the installation positions and connection nodes of the parts;

[0095] For each pipe wall unit, the parts it contains can be identified and compared with the parts in the preset parts library to determine the part type, or distinguished by the name of the part in the feature tree to achieve identification. After the part is determined, the installation location and node of the part can be determined by the part name or other parts in the adjacent position.

[0096] Obtaining the serial number of the section dividing template where the pipe wall unit is located;

[0097] like Figure 2 As shown, the anchor box is segmented one by one, and the outer wall to be cut is the outer wall of the (steel) anchor box. During modeling, several characteristic steel anchor boxes will be selected according to the design intent to make templates. For example, if there are three characteristics, three templates will be created, and each template contains different section divisions. Then there is a module called Knowledge Engineering Matrix in CATIA. In this module, through scripting, the templates I created can be automatically generated at the designed position according to the design positioning. For example, if Template 1 has 10, Template 2 has 20, and Template 3 has 30, they can be generated according to the matrix and category at the required design position, and finally a complete steel tower section is formed.

[0098] Based on the serial number, the installation location and the connection node, a serial number corresponding to the pipe wall unit is determined.

[0099] Specifically, the numbering is a combination of the serial number of the divided template, the installation location and the node. For example, M1_N5-0_3, M1_N5a-1_3, and M1_N6-2_3 are the serial numbers of the three parts, respectively, and M1 represents the first template on the right, N5 and N6 represent the parts inside the steel anchor box, N1, N2, and N3 represent the outer wall panels and stiffening parts of the steel anchor box, and the last suffix 3 indicates external alignment, and 0 indicates center alignment.

[0100] When this embodiment is applied in practice, the number is determined by combining the template serial number, installation location and node of the pipe wall unit, that is, the setting rule is determined to distinguish the pipe wall units, which can include information such as the type of anchor box and installation location, so as to facilitate the distinction based on the projection of the pipe wall unit and the identification of each part.

[0101] like Figure 3 and Figure 4 As shown, as an optional embodiment of the present invention, the extracting the relative position data of the pipe wall unit in the three-dimensional model includes:

[0102] Acquire a reference surface in the three-dimensional model, and mark the pipe wall unit in the three-dimensional model;

[0103] Specifically, the reference surface to be projected is pre-specified. Generally, a plane parallel or nearly parallel to the pipe wall unit is selected, that is, a plane whose angle difference with the surface of the pipe wall unit is within a preset angle range. All pipe wall units are marked by picking and color marking. Multiple reference surfaces can be provided, and more than two reference surfaces can facilitate the positioning of the cable guide tube from multiple planes.

[0104] Identify the marked boundary of the pipe wall unit and extract geometric elements of the boundary, wherein the geometric elements include line segments and circles;

[0105] The boundary of the pipe wall unit can be picked directly, which is the actual line or surface in the three-dimensional model. The geometric elements of the boundary include straight lines, curves and circles. The cross section of this circle is generally an ellipse.

[0106] The geometric elements whose corresponding lengths are greater than a preset length are screened, and the relative position data between the screened geometric elements and a reference surface or a connected structure are determined.

[0107] In with Figure 3 Corresponding Figure 4 It includes the number of the anchor beam segment, which is used for process drawings to guide the relevant parameters of manufacturing and installing the anchor beam, including data such as length, angle, relative position relationship, etc.

[0108] Specifically, the boundary of the surface is obtained and deconstructed. Taking the above practical example, circular elements with a diameter greater than 200 mm are screened out, which may be the cross-section of the cable duct; line segments with a length of 1000 mm are screened out, which may be the connection part or position between the cable duct and other structures.

[0109] When this embodiment is applied in practice, it is convenient to extract the geometric elements of the pipe wall units through the selection of reference surfaces, the identification of pipe wall units and the extraction of elements, and then determine the relative position data of the geometric elements and the connected structures, thereby improving the positioning accuracy of the installation of the core part of the cable duct. Therefore, the relative position data combined with the two-dimensional drawings can provide a direct reference for the subsequent on-site installation of the cable duct.

[0110] like Figure 5 and Figure 6 As shown, as an optional embodiment of the present invention, the screening of the geometric elements whose corresponding length is greater than the preset length, and determining the relative position data between the screened geometric elements and the reference surface or the connected structure includes:

[0111] Screening circles with diameters larger than a preset diameter, and projecting the screened circles onto the reference surface to obtain a projected shape;

[0112] When the circle is an ellipse, it is the major axis of the ellipse, which is projected onto at least two reference planes. The reference planes are selected to be two non-parallel planes, and references can be made during installation from different reference planes.

[0113] Identifying first relative position data of the projected shape relative to the reference surface;

[0114] When selecting relative position data, select several key points on the projected shape, such as the first relative position data of the center of a circle and a reference surface. For other shapes, such as a rectangle, select four vertices; for a straight line, select endpoints and a center point. The relative position data can be directly measured through tools within the software, such as the measurement module of CATIA. The first relative position data includes the distance from a point to a straight line, the distance from a point to a plane, the inclination angle of a line relative to a reference surface, and the inclination angle of a surface relative to a reference surface.

[0115] Screening the line segments whose lengths are greater than a preset distance, and picking up the connected structures connected to the ends of the line segments;

[0116] The connected structure at the end of the line segment indicates that it may be the connecting part or position between the cable guide and other structures. The connected structure has the name of the connected structure in the feature tree of the software (named during modeling).

[0117] identifying second relative position data of the line segment relative to the connected structure;

[0118] The second position data and the first position data are the same type of data, so the second position data can show the positional relationship of the element guide tube relative to the connected structure.

[0119] The relative position data includes first relative position data and second relative position data.

[0120] like Figure 5 and Figure 6 They are respectively the annotated schematic diagrams of the detailed drawings of adjacent numbered sections, which respectively show the two-dimensional schematic diagrams of the cable guide tubes marked relative to the top and side (east side) of the bridge tower, the center line of the bridge tower, etc. It should be noted that Figure 5 and Figure 6 These are two schematic diagrams of batch projection. The unit of size is millimeter. It is the steel anchor box of the cable tower of Tuojiang Bridge. N2 is the side part of the concrete beam (M). The groove form is subject to the welding process. Indicates stirrup reinforcement holes and PBL shear key holes, diameter 60mm, Indicates stirrup reinforcement hole, diameter 50mm.

[0121] When this embodiment is applied in practice, the circular surface of the cable guide tube and the line segments in the length direction can be determined by screening the set elements, and then the positional relationship with the reference plane can be determined at least based on the circular surface and the line segments. This positional relationship can be directly marked on the two-dimensional drawing and does not require manual measurement.

[0122] As an optional embodiment of the present invention, the acquiring, based on the pipe wall unit with the number, a two-dimensional view corresponding to the pipe wall unit with the number includes:

[0123] The tube wall unit is projected according to a set viewing angle, and the projection result is matched with the number of the corresponding tube wall unit to obtain the two-dimensional view corresponding to the tube wall unit with the number.

[0124] Specifically, the perspective is generally selected as the front view perspective. With the help of CATIA, in its engineering drawing module, by identifying the previously numbered geometric bodies (tube wall units), they can be projected in batches in front view, and finally a numbered dwg format drawing is obtained. The projection is batched.

[0125] The above realizes the front view projection of the pipe wall unit, and the two-dimensional drawing is numbered to facilitate the distinction and subsequent generation of detailed drawings.

[0126] When the relative position data is annotated one by one in the two-dimensional view, the annotation is mainly based on the cable guide and combined with

[0127] As an optional embodiment of the present invention, the three-dimensional model of the bridge tower is pre-established, and the step of pre-establishing the three-dimensional model of the bridge tower includes:

[0128] Establish the datum line of the bridge tower's central axis;

[0129] Specifically, taking the central axis reference line as a reference, multiple bridge tower sections at different heights are established. The modeling process can be performed based on three-dimensional software, such as CATIA. At present, using CATIA to build bridge tower section models in complex structures is a well-known technology. The improvement of this embodiment lies in the steps after establishing the bridge tower section. The basic model is formed by splicing and fitting multiple bridge tower sections.

[0130] Importing the positioning data of the cable conduit in the form of a design table, generating a conduit line in each of the bridge tower sections based on the positioning data, and performing sweeping based on the conduit line to form the cable conduit with a wall thickness in each of the bridge tower sections;

[0131] Specifically, after the various positioning data of the cable duct are counted through an Excel table, the cable duct line is automatically drawn in CATIA through a design table, and then all the tower walls are fitted to form the entire steel tower contour model, wherein the positioning data includes length, direction, angle data, elevation positioning, and the distinction between the left and right sides of the bridge tower and the side along the bridge, which are distinguished by different letters in modeling. The duct line is first drawn through the positioning data, and then the model contour can be completed by sweeping based on the set wall thickness.

[0132] The cross section of the bridge tower with the cable guide tube is fitted, and auxiliary partitions and reinforcing ribs are established to obtain the three-dimensional model of the bridge tower.

[0133] Specifically, the tower walls generated by the engineering template matrix are fitted together, and finally partitions and transverse and longitudinal reinforcements are established thereon, and the steel tower model is completed.

[0134] When this embodiment is applied in practice, the duct can be quickly established by batch importing the design table, and the bridge tower section used is finally fitted to meet the positioning requirements of the cable duct, thereby meeting the subsequent accurate drawing requirements of multiple cable ducts.

[0135] like Figure 7 As shown, as an optional embodiment of the present invention, after the relative position data is marked in the two-dimensional view and the detailed drawing is obtained, the method further includes:

[0136] Counting the cutting allowances of the guide cable holes based on the detailed drawings to obtain a two-dimensional allowance, wherein the cutting allowances of the guide cable holes based on the detailed drawings to obtain a two-dimensional allowance, wherein the cutting allowances of the guide cable holes are the cutting allowances when at least two sections of the cable guide tubes are spliced ​​in the guide cable holes;

[0137] Specifically, the surplus material statistics are combined with the two-dimensional drawings on site, and the statistics can be input manually, because the initial actual cutting of the cable guide is based on the detailed drawings.

[0138] Acquire the cable hole splicing margin based on the three-dimensional model of the bridge tower to obtain a three-dimensional margin;

[0139] The cable guide hole splicing allowance refers to the actual allowance of the cable guide when it is installed according to the three-dimensional bridge tower model. The purpose of the allowance is to facilitate the welding of the cable guide in the cable guide hole.

[0140] The two-dimensional surplus and the three-dimensional surplus are compared, and a surplus material management database is constructed according to the comparison result.

[0141] Specifically, based on the comparison between the two-dimensional margin and the three-dimensional margin, the two-dimensional margin and the three-dimensional margin of the cable duct of the same type or the same height are matched. When the margin difference is too large, it can provide a basis for cutting optimization for the subsequent two-dimensional margin. After the cutting is completed in the same batch, the margin can be initially controlled, which is conducive to the unified allocation of insufficient margin.

[0142] When this embodiment is applied in practice, by establishing a surplus material management database, that is, a Catalog surplus material management system, it can help to discover unnecessary surplus materials and potential causes of waste, so that measures can be taken (such as optimizing two-dimensional surpluses, reducing them if there are too many, and utilizing waste if there are too few) to reduce material waste and improve overall efficiency.

[0143] As an optional embodiment of the present invention, the part guide method for cable conduit perforation further includes:

[0144] Based on the wall panel unit, the angle template is virtually fixed in advance;

[0145] Specifically, through the virtual fixation of the angle template, in order to achieve the spatial positioning of the small cross rib and the wall panel unit, the angle template is fixed in advance on the parts of the wall panel unit with the cross rib (partition) position line as the reference to ensure the accurate position of the angle template and secure fixation; then the cross ribs are assembled and positioned along the cross rib position line on the wall panel, and the spatial assembly angle of the wall panel unit is controlled by the angle template.

[0146] Based on the virtually fixed angle template, the wall panel unit is overlapped with the concrete formwork model, and the overlap error between the two is detected;

[0147] Specifically, after the virtual fixed angle template is assembled, the wall panel unit is assembled and combined with actual use to overlap with the concrete formwork model. The overlap error is based on the set positioning point. The positioning point can be set based on the angle sample. The overlap error is expressed as the difference distance after overlap.

[0148] The position of the angle template for virtual fixing is adjusted according to the overlap error until the overlap error meets the preset error accuracy.

[0149] Generally, the actual-theoretical error distance is required to be less than 0.5mm. When it is greater than or equal to 0.5mm, the distance between the angle template and the transverse rib position line should be adjusted so that the overlap error finally meets the preset error accuracy.

[0150] When it comes to the reorganization of the guide wall plate unit, create an edge extraction script to reorganize the system line and the steel tower outer wall extraction line. This step is to prepare for the export of the white map, because the white map is obtained through batch projection. The object recognized by the batch projection script is the outer contour line. Here, the system line and the outer contour line are both projection objects, so they need to be reorganized. The system line can be understood as the duct line, and what needs to be reorganized here is not the system line, but the intersection of the system line and the outer wall plate. After reorganization with the outer contour, it is convenient to export the complete white map. At this time, in addition to the outer contour, the white map also contains the hole points of the cable duct for two-dimensional annotation, which is convenient for the annotation personnel to perform two-dimensional positioning annotation, avoiding the designer to recalculate the point positioning one by one according to the design principles.

[0151] When this embodiment is applied in practice, the angle template is virtually fixed and overlapped with the wall panel unit and the concrete formwork model (the formwork model is a concrete model, and the concrete is wrapped around the outside of the bridge tower), so that the overlap error between the two can be accurately detected. Virtual fixation and adjustment are performed before actual construction, which can avoid rework or material waste due to errors. After confirming that the position of the angle template is appropriate, actual construction is carried out, which can significantly improve resource utilization efficiency. Through computer simulation and virtual fixation, the best construction plan can be quickly found to avoid trial and error on site, thereby saving construction time and improving work efficiency. By detecting the overlap error and making adjustments, problems or defects in the actual installation can be discovered in advance, thereby promoting the optimization and improvement of the installation of the bridge tower where the cable guide tube is located.

[0152] like Figure 8 As shown, the present invention further provides a plate-type part mapping system 200 for cable conduit perforation, which uses the plate-type part mapping method for cable conduit perforation described in the above embodiment, including:

[0153] A cutting module 100 is used to integrally cut the cable guide tube and the tower wall where the cable guide tube is located in the three-dimensional model of the bridge tower to obtain a tube wall unit;

[0154] A numbering module 210, for naming the pipe wall units based on different parts and nodes of the bridge tower to obtain numbers corresponding to the pipe wall units;

[0155] An acquisition module 220, configured to acquire, based on the pipe wall unit with the number, a two-dimensional view corresponding to the pipe wall unit with the number;

[0156] An extraction module 230, used to extract relative position data of the pipe wall unit in the three-dimensional model;

[0157] The marking module 240 is used to mark the relative position data in the two-dimensional view to obtain a detailed drawing, and the detailed drawing is used to guide on-site processing and manufacturing.

[0158] The specific implementation of this embodiment can refer to the corresponding implementation method mentioned above and will not be described again here.

[0159] like Fig. 9 As shown, an electronic device 300 provided by an embodiment of the present invention includes a memory 310 and a processor 320; the memory 310 is used to store a computer program; the processor 320 is used to implement the part drawing method for cable conduit perforation as described above when executing the computer program.

[0160] like Fig. 9 As shown, or in other words, an electronic device 300 includes a memory 310 and a processor 320 coupled to the memory 310; the memory 310 is configured to store a computer program; the processor 320 is configured to perform the following operations when executing the computer program:

[0161] Integrally cutting the cable guide tube and the tower wall where the cable guide tube is located in the three-dimensional model of the bridge tower to obtain a tube wall unit;

[0162] Based on different parts and nodes of the bridge tower, the pipe wall units are named to obtain numbers corresponding to the pipe wall units;

[0163] Based on the tube wall unit with the number, acquiring a two-dimensional view corresponding to the tube wall unit with the number;

[0164] Extracting relative position data of the pipe wall unit in the three-dimensional model;

[0165] The relative position data are marked correspondingly in the two-dimensional view to obtain a detailed drawing, and the detailed drawing is used to guide on-site processing and manufacturing.

[0166] An embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the part drawing method for cable conduit perforation as described above is implemented.

[0167] In other words, a non-volatile computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the processor performs the following operations:

[0168] Integrally cutting the cable guide tube and the tower wall where the cable guide tube is located in the three-dimensional model of the bridge tower to obtain a tube wall unit;

[0169] Based on different parts and nodes of the bridge tower, the pipe wall units are named to obtain numbers corresponding to the pipe wall units;

[0170] Based on the tube wall unit with the number, acquiring a two-dimensional view corresponding to the tube wall unit with the number;

[0171] Extracting relative position data of the pipe wall unit in the three-dimensional model;

[0172] The relative position data are marked correspondingly in the two-dimensional view to obtain a detailed drawing, and the detailed drawing is used to guide on-site processing and manufacturing.

[0173] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiments can be completed by instructing the relevant hardware through a computer program, and the program can be stored in a non-volatile computer-readable storage medium. When the program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, storage, database or other media used in the embodiments provided by the present invention can include non-volatile and / or volatile memory. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM) or flash memory. Volatile memory can include random access memory (RAM) or external cache memory. As an illustration and not limitation, RAM is available in many forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).

[0174] The above description is only a specific embodiment of the present invention, so that those skilled in the art can understand or implement the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but should conform to the widest scope consistent with the principles and novel features invented herein.

[0175] Although the present invention is disclosed as above, the protection scope of the present invention is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications will fall within the protection scope of the present invention.

Claims

1. A method for drawing parts for cable conduit perforation, characterized in that: include: Integrally cutting the cable guide tube and the tower wall where the cable guide tube is located in the three-dimensional model of the bridge tower to obtain a tube wall unit; Based on different parts and nodes of the bridge tower, the pipe wall units are named to obtain numbers corresponding to the pipe wall units; Based on the tube wall unit with the number, acquiring a two-dimensional view corresponding to the tube wall unit with the number; Extracting relative position data of the pipe wall unit in the three-dimensional model; The relative position data are marked correspondingly in the two-dimensional view to obtain a detailed drawing, and the detailed drawing is used to guide on-site processing and manufacturing.

2. The method for drawing parts for cable guide tube perforation according to claim 1, characterized in that: The cable guide tube in the three-dimensional model of the bridge tower and the tower wall where the cable guide tube is located are integrally cut to obtain the tube wall unit, including: Determining a corresponding section division template according to the type of the anchor box in the three-dimensional model; querying the three-dimensional model according to the section division template to determine the sections of all the anchor boxes; Determining a cutting range of the pipe wall unit based on the pipeline identification of the cable conduit and the cross section; The three-dimensional model is cut according to the cutting range to obtain the pipe wall unit, which includes a wall panel unit.

3. The method for drawing parts for cable guide tube perforation according to claim 2, characterized in that: The tube wall units are named based on different parts and nodes of the bridge tower to obtain the numbers corresponding to the tube wall units, including: Determine the parts included in the pipe wall unit, and obtain the installation positions and connection nodes of the parts; Obtaining the serial number of the section division template corresponding to the pipe wall unit; Based on the serial number, the installation location and the connection node, a serial number corresponding to the pipe wall unit is determined.

4. The method for drawing parts for cable guide tube perforation according to any one of claims 1 to 3, characterized in that: The extracting the relative position data of the pipe wall unit in the three-dimensional model comprises: Acquire a reference surface in the three-dimensional model, and mark the pipe wall unit in the three-dimensional model; Identify the marked boundary of the pipe wall unit and extract geometric elements of the boundary, wherein the geometric elements include line segments and circles; The geometric elements whose corresponding lengths are greater than a preset length are screened, and the relative position data between the screened geometric elements and a reference surface or a connected structure are determined.

5. The method for drawing parts for cable conduit perforation according to claim 4, characterized in that: The screening of the geometric elements whose corresponding lengths are greater than a preset length, and determining the relative position data between the screened geometric elements and a reference surface or a connected structure includes: Screening the circles whose diameters are larger than a preset diameter, and projecting the screened circles onto the reference surface to obtain a projected shape; Identifying first relative position data of the projected shape relative to the reference surface; Screening the line segments whose lengths are greater than a preset distance, and picking up the connected structures connected to the ends of the line segments; identifying second relative position data of the line segment relative to the connected structure; The relative position data includes first relative position data and second relative position data.

6. The part drawing method for cable conduit perforation according to claim 1, characterized in that: The acquiring, based on the pipe wall unit with the number, a two-dimensional view corresponding to the pipe wall unit with the number comprises: The tube wall unit is projected according to a set viewing angle, and the projection result is matched with the number of the corresponding tube wall unit to obtain the two-dimensional view corresponding to the tube wall unit with the number.

7. The method for drawing parts for cable guide tube perforation according to any one of claims 1 to 3, characterized in that: The three-dimensional model of the bridge tower is pre-established, and the steps of pre-establishing the three-dimensional model of the bridge tower include: Establishing a central axis reference line of the bridge tower; Taking the central axis reference line as a reference, establishing multiple bridge tower sections at different heights; Importing the positioning data of the cable conduit in the form of a design table, generating a conduit line in each of the bridge tower sections based on the positioning data, and performing sweeping based on the conduit line to form the cable conduit with a wall thickness in each of the bridge tower sections; The multiple bridge tower sections with the cable guide tubes are fitted, and auxiliary partitions and reinforcing ribs are established to obtain the three-dimensional model of the bridge tower.

8. The method for drawing parts for cable guide tube perforation according to any one of claims 1 to 3, characterized in that: After the relative position data is marked in the two-dimensional view, and a detailed drawing is obtained, the method further includes: Counting the cable guide hole cutting margin based on the detailed drawing to obtain a two-dimensional margin, wherein the cable guide hole cutting margin is the cutting margin when at least two sections of the cable guide tube are spliced ​​in the cable guide hole; Acquire the cable guide hole splicing margin based on the three-dimensional model of the bridge tower to obtain a three-dimensional margin; The two-dimensional surplus and the three-dimensional surplus are compared, and a surplus material management database is constructed according to the comparison result.

9. The part drawing method for cable conduit perforation according to claim 2 or 3, characterized in that: The part guide method for cable conduit perforation also includes: Based on the wall panel unit, the angle template is virtually fixed in advance; Based on the virtually fixed angle template, the wall panel unit is overlapped with the concrete formwork model, and the overlap error between the two is detected; The position of the angle template for virtual fixing is adjusted according to the overlap error until the overlap error meets the preset error accuracy.

10. A plate-type parts mapping system for cable guide perforation, characterized in that: The plate-type parts drawing method for cable guide pipe perforation as claimed in any one of claims 1 to 9 comprises: A cutting module, used for integrally cutting the cable guide tube and the tower wall where the cable guide tube is located in the three-dimensional model of the bridge tower to obtain a tube wall unit; A numbering module, used for naming the pipe wall units based on different parts and nodes of the bridge tower to obtain numbers corresponding to the pipe wall units; An acquisition module, configured to acquire, based on the pipe wall unit with the number, a two-dimensional view corresponding to the pipe wall unit with the number; An extraction module, used for extracting the relative position data of the pipe wall unit in the three-dimensional model; The marking module is used to mark the relative position data in the two-dimensional view to obtain a detailed drawing, and the detailed drawing is used to guide on-site processing and manufacturing.

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