CN107256005B - BIM technology-based steel bar numerical control machining method and equipment - Google Patents
BIM technology-based steel bar numerical control machining method and equipment Download PDFInfo
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- CN107256005B CN107256005B CN201710695467.6A CN201710695467A CN107256005B CN 107256005 B CN107256005 B CN 107256005B CN 201710695467 A CN201710695467 A CN 201710695467A CN 107256005 B CN107256005 B CN 107256005B
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
- G05B19/4097—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by using design data to control NC machines, e.g. CAD/CAM
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/32—Operator till task planning
- G05B2219/32153—Exchange data between user, cad, caq, nc, capp
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Abstract
The invention discloses a numerical control machining method and equipment for reinforcing steel bars based on BIM technology, which solve the problem of low accuracy of reinforcing steel bar sample turning, can quickly establish a structural BIM model containing reinforcing steel bars no matter whether structural design data such as CAD drawings exist or not, automatically detect reinforcing steel bar arrangement information, determine an optimal cutting scheme of the reinforcing steel bars through a reinforcing steel bar blanking cutting optimization module, and further generate an optimal reinforcing steel bar blanking list. The method has the advantages that all the steel bars are numbered and classified at the design end, then the steel bar detail list is automatically generated, the initial bill is optimized, the steel bar blanking efficiency and accuracy are greatly improved, the manual operation intensity and error rate are reduced, the steel bar processing quality is ensured, the waste rate in the steel bar processing is reduced to the maximum extent, and the economic benefit of enterprises is effectively improved. In addition, the whole process control and management from the design to the processing of the reinforcing steel bars are realized through BIM technology.
Description
Technical Field
The invention relates to the technical field of constructional engineering, in particular to a numerical control machining method and equipment for reinforcing steel bars based on BIM technology.
Background
The reinforcing steel bar is one of the materials with the largest application range and the largest application amount in the civil engineering structure. Before casting the concrete, the steel bars must be formed into a framework of a certain specification and form and then placed into a form, which requires the steel bars to be subjected to the processes of strengthening, stretching, straightening, cutting, bending, connecting, etc. to form the steel bar framework. Because the consumption of the steel bars is extremely large, the manual operation production efficiency is low, the labor intensity is high, the processing quality and the time schedule are difficult to control, the waste of materials and energy is high, the processing cost is high, and the potential safety hazard is high. Therefore, various special machines are required to be adopted for processing the steel bars, with the continuous development of manufacturing technology, the current steel bar processing is increasingly controlled by a computer to perform the work of straightening, cutting off, bending and the like of the steel bars, namely the numerical control processing technology of the steel bars.
The numerical control processing of the steel bars enables the automatic control of the raw material conveying, the processing assembly welding and the finished product collecting of the steel bars to be realized, thereby greatly reducing the labor intensity of workers and improving the production efficiency and the processing quality. However, the current steel bar numerical control machining is basically disjointed from the design information of the steel bars in the civil construction structure, and the steel bar numerical control machining also relies on manual work to input the design-end steel bar information, so that the efficiency is low, and the accuracy is difficult to guarantee. The BIM technology (Building Information Modeling, building information model) is increasingly applied to the design, construction and operation and maintenance processes of civil construction by virtue of the advantages of visualization, coordination, simulation, optimality, graphical property and the like, and the BIM technology and the steel bar numerical control processing technology are combined, so that the whole process integration of structural design (including steel bars), steel bar blanking list and steel bar processing can be realized, the steel bar design can be rapidly carried out, site workers can be effectively guided to accurately and conveniently carry out steel bar binding, and the construction quality of component steel bars is well ensured while the steel bar processing operation efficiency is greatly improved.
In the domestic patent (publication number CN 106295078A, a reinforcing steel bar sample-turning calculation-modularization processing system and method based on BIM technology), the whole process management of reinforcing steel bar production centered on an informationized management platform is mentioned, but the platform simply reads the design data information of the reinforcing steel bar, lacks a checking link for whether the reinforcing steel bar information is accurate or not, and can not work under the condition of lacking the reinforcing steel bar information. The invention starts from the rapid BIM modeling of the structure containing the reinforcing steel bars, can rapidly build the BIM model of the structure containing the reinforcing steel bars no matter whether CAD drawing exists or not, automatically detects reinforcing steel bar arrangement information, determines the optimal cutting scheme of the reinforcing steel bars by developing reinforcing steel bar cutting optimization software, and further generates an optimal reinforcing steel bar blanking list. Compared with the patent, the invention has the advantages of independently establishing the BIM model of the structural reinforcing steel bar, improving the accuracy of reinforcing steel bar arrangement information, automatically generating the optimal reinforcing steel bar blanking scheme, ensuring the control of the whole process from the design to the processing of the reinforcing steel bar, and the like.
Disclosure of Invention
Aiming at the defects and shortcomings of the prior art, the invention provides a numerical control processing method for reinforcing steel bars based on BIM technology, which has the advantages of convenient construction, economy, high efficiency, accuracy, easiness in use and the like.
The technical scheme of the invention is as follows:
the numerical control machining method for the reinforcing steel bar based on the BIM technology is characterized by comprising the following steps of:
step one, installing a structure rapid modeling plug-in on the basis of BIM software.
If the structural design data such as the CAD drawing exists, the structural design data such as the CAD drawing is directly read through a structural rapid modeling plug-in, and a structural BIM model containing reinforcing steel bars is built; if the CAD drawing and other structural design data are not available, the structural BIM model containing the reinforcing steel bars is directly designed and built through the structural rapid modeling plug-in.
And thirdly, checking the generated structural reinforcement model, and returning to the second step for correction or directly modifying by BIM software if the reinforcement information is wrong.
And fourthly, generating a steel bar detail table through the structure BIM after the reinforcement information of the steel bar model is correct.
And fifthly, generating an initial bill of the reinforcing steel bar.
And step six, optimizing the steel bar blanking on the basis of the initial material list of the steel bars so as to form the steel bar blanking list.
And step seven, the generated steel bar blanking list is lowered in the form of a two-dimensional code or other information carriers.
And step eight, leading in a steel bar blanking list to numerical control processing equipment by field operators.
And step nine, running numerical control machining equipment to finish corresponding automatic machining of the steel bars.
The invention also provides a steel bar numerical control machining device based on the BIM technology, which comprises BIM host equipment and a numerical control machine tool.
The BIM host equipment comprises a design data importing module, a steel bar-containing structure BIM model rapid generation module, a structural steel bar model correction module, a steel bar initial bill generation module, a steel bar blanking cutting optimization module and a steel bar bill sending module.
The numerical control machine tool comprises a numerical control machine tool control unit, a steel bar material sheet receiving module, a steel bar blanking sheet leading-in unit and an automatic processing unit.
And the BIM host equipment is connected with the numerical control machine tool through data transmission equipment.
And the design data importing module imports structural design data such as CAD drawings.
The rapid generation module of the BIM model of the reinforcement-containing structure directly reads the structural design data such as CAD drawing and the like through the rapid structural modeling plug-in if the structural design data such as CAD drawing and the like exists, and establishes the BIM model of the reinforcement-containing structure; if the CAD drawing and other structural design data are not available, the structural BIM model containing the reinforcing steel bars is directly designed and built through the structural rapid modeling plug-in.
And the structural reinforcement model correction module is used for checking the generated structural reinforcement model, and correcting structural information or a structural BIM model through a structural rapid modeling plug-in unit or directly modifying through BIM software if the reinforcement information is wrong.
The steel bar initialization bill generation module generates a steel bar initial bill.
And the reinforcing steel bar blanking cutting optimization module is used for cutting and optimizing reinforcing steel bar blanking on the basis of the initial reinforcing steel bar blanking list so as to form the reinforcing steel bar blanking list.
And the steel bar bill sending module is used for sending the generated steel bar bill to the numerical control machine in a two-dimensional code or other information carrier mode.
The BIM-based steel bar numerical control processing method and the BIM-based steel bar numerical control processing equipment provided by the invention not only solve the problem of low steel bar sample turning accuracy, but also rapidly create a structure BIM model containing steel bars through the characteristic of BIM technology informatization, namely complete numbering and classifying all the steel bars at a design end, and then automatically generate a steel bar detail list and optimize an initial bill, thereby greatly improving the efficiency and accuracy of steel bar blanking, reducing the manual operation intensity and error rate, reducing the waste rate in steel bar processing to the maximum extent and effectively improving the economic benefit of enterprises while ensuring the steel bar processing quality. In addition, the whole process control and management from the design to the processing of the reinforcing steel bars are realized through BIM technology.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a flow chart of a numerical control machining method of a reinforcing steel bar based on BIM;
fig. 2 is a flow chart of the rebar bill optimization according to the present invention.
Fig. 3 is a block diagram of a modular structure of the numerical control machining device for reinforcing steel bars based on BIM of the present invention.
Detailed Description
The present invention will be further described in detail with reference to the drawings and the detailed description, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the detailed description and specific examples are intended for purposes of illustration only and are not intended to limit the scope of the invention.
Embodiment one:
fig. 1 is a flow chart of a numerical control machining method of reinforcing steel bars based on BIM. As shown in fig. 1 and 2, the numerical control machining method of the reinforcing steel bar based on the BIM of the invention specifically comprises the following steps:
step one, installing a structure rapid modeling plug-in on the basis of BIM software.
The BIM software is generally installed by selecting proper BIM software according to the type of civil structure, for example, the common civil construction field, and the REVIT software of AUTODESK company is generally selected. It should be noted that the technical scheme of the invention is not limited by the types of BIM software, and different BIM software is selected, so that the implementation of the technical scheme of the invention is not affected.
On the basis of BIM software, installing a structure rapid modeling plug-in, taking REVIT software as an example, and adopting C# or VB.NET language programming development in Visual Studio to form the structure rapid modeling plug-in. Likewise, the architecture-specific modeling plug-in will also differ in the code built in due to the different BIM software environments, but the external functions are consistent. It should be emphasized here that, although the modeling plug-in for the rapid structure may be different depending on the different BIM software environments, the technical solution of the present invention is not limited to the BIM software environments, and in this embodiment, the present invention is only explained by taking the REVIT software as an example.
If a CAD drawing exists, directly reading the CAD drawing through a structure rapid modeling plug-in, and establishing a structure BIM model containing reinforcing steel bars; if no CAD drawing is available, the structure BIM model containing the reinforcing steel bars is directly designed and built through the structure rapid modeling plug-in.
The technical scheme of the invention is not limited by whether structural design data such as CAD drawing exists or not, if a construction unit or a design institute provides design data information such as the CAD drawing of structural design, the installed structural rapid modeling plug-in is started to directly read the drawing, and a structural BIM model containing reinforcing steel bars is automatically generated. If the construction unit or the design institute does not provide structural design data such as CAD drawing, the installed structural rapid modeling plug-in is started, and a structural BIM model containing reinforcing steel bars is directly and automatically generated according to structural design requirements.
The generated structure BIM model contains the reinforcement information of the corresponding components, the reinforcement information is generally positioned in the component attribute column of the structure BIM model, and the reinforcement information of each component is required to accord with the national standard design flat drawing atlas and related specifications.
And thirdly, checking the generated structural reinforcement model, and returning to the second step for correction or directly modifying by BIM software if the reinforcement information is wrong. The modification may be performed directly in the generated structural BIM model.
And fourthly, generating a steel bar detail table through the structure BIM model on the basis of the steel bar BIM model after the reinforcement information of the steel bar model is correct.
And fifthly, generating a steel bar initial bill by combining a steel bar unloading software module with a steel bar sample turning rule and field steel bar processing experience.
And step six, optimizing the steel bar blanking on the basis of the initial material list of the steel bars so as to form the steel bar blanking list.
As shown in fig. 2, the optimization step specifically includes: the reinforcement bar cutting optimization software is started or the reinforcement bar cutting optimization device is started, and the reinforcement bar cutting optimization software is taken as an example for the embodiment. And reading the basic data (such as parameters of a steel bar style, a steel bar specification, a steel bar size, the number of steel bars and the like) of the steel bars in the preliminary steel bar bill to form different steel bar cutting optimization schemes, and carrying out blanking optimization sequencing on the steel bars after the optimal steel bar cutting scheme is solved by the steel bar cutting optimization software to generate a steel bar blanking bill, and simultaneously automatically creating a steel bar layout diagram of a corresponding component.
And step seven, the generated steel bar blanking list is lowered in the form of a two-dimensional code or other information carriers. The method specifically comprises the steps of storing relevant data of the steel bar discharging bill into a cloud or a server, automatically generating a two-dimensional code steel bar bill, and directly transmitting the two-dimensional code to an operator.
And step eight, leading in a steel bar blanking list to numerical control processing equipment by field operators.
The field operation personnel butt-joint the two-dimensional code reinforcing steel bar bill with the numerical control processing equipment, scan the two-dimensional code through the code scanner on the numerical control processing equipment, and the numerical control processing equipment can display processing tasks in sequence.
And step nine, running numerical control machining equipment to finish corresponding automatic machining of the steel bars.
The field operator selects a processing task, starts the numerical control processing equipment, and the raw materials of the steel bars automatically complete the straightening, bending and cutting procedures through the numerical control processing equipment, so that the whole process of numerical control processing of the steel bars based on BIM is finally completed, and the aim of no waste or lowest waste rate in the steel bar processing is fulfilled.
Embodiment two:
fig. 3 is a block diagram of a modular structure of the numerical control machining device for reinforcing steel bars based on BIM of the present invention. As shown in fig. 3, the numerical control machining device for reinforcing steel bars based on BIM comprises a BIM host device and a numerical control machine tool.
The BIM host equipment comprises a design data importing module, a steel bar-containing structure BIM model rapid generation module, a structural steel bar model correction module, a steel bar initial bill generation module, a steel bar blanking cutting optimization module and a steel bar bill sending module.
The numerical control machine tool comprises a numerical control machine tool control unit, a steel bar material sheet receiving module, a steel bar blanking sheet leading-in unit and an automatic processing unit.
And the BIM host equipment is connected with the numerical control machine tool through data transmission equipment.
And the design data importing module imports structural design data such as CAD drawings.
The rapid generation module of the BIM model of the reinforcement-containing structure directly reads the structural design data such as CAD drawing and the like through the rapid structural modeling plug-in if the structural design data such as CAD drawing and the like exists, and establishes the BIM model of the reinforcement-containing structure; if the CAD drawing and other structural design data are not available, the structural BIM model containing the reinforcing steel bars is directly designed and built through the structural rapid modeling plug-in.
And the structural reinforcement model correction module is used for checking the generated structural reinforcement model, and correcting structural information or a structural BIM model through a structural rapid modeling plug-in unit or directly modifying through BIM software if the reinforcement information is wrong.
The steel bar initialization bill generation module generates a steel bar initial bill.
And the steel bar blanking optimization module optimizes the steel bar blanking on the basis of the initial material list of the steel bars so as to form the steel bar blanking list. The "optimization" is specifically: starting the reinforcement cutting optimization software or starting the reinforcement cutting optimization module, specifically: and reading the basic data (such as parameters of a steel bar style, a steel bar specification, a steel bar size, the number of steel bars and the like) of the steel bars in the preliminary steel bar bill to form different steel bar cutting optimization schemes, and carrying out blanking optimization sequencing on the steel bars after the optimal steel bar cutting scheme is solved by the steel bar cutting optimization software to generate a steel bar blanking bill, and simultaneously automatically creating a steel bar layout diagram of a corresponding component.
And the steel bar bill sending module is used for sending the generated steel bar bill to the numerical control machine in a two-dimensional code or other information carrier mode. The "other information carrier forms" are not particularly limited, and are interpreted as any information carrier form that can send the steel bar blanking sheet to the numerical control machine tool, and the "two-dimensional code" is adopted as the information carrier of the steel bar blanking sheet, so that the invention is a preferable scheme.
According to the BIM-based steel bar numerical control processing method and the BIM-based steel bar numerical control processing equipment, the problem that the steel bar sample turning accuracy is not high is solved, meanwhile, a structural BIM model containing steel bars is quickly created through the characteristic of BIM technology informatization, numbering and classifying of all the steel bars are completed at a design end, then an automatic steel bar detail list is generated, an initial bill is optimized, the steel bar blanking efficiency and accuracy are greatly improved, the manual operation intensity and the error rate are reduced, the steel bar processing quality is guaranteed, the waste rate in steel bar processing is reduced to the greatest extent, and the economic benefit of enterprises is effectively improved. In addition, the whole process control and management from the design to the processing of the reinforcing steel bars are realized through BIM technology.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention.
The applicant filed an invention patent on the same date as the present application.
Claims (10)
1. The numerical control machining method for the reinforcing steel bar based on the BIM technology is characterized by comprising the following steps of:
step one, installing a structure rapid modeling plug-in on the basis of BIM software;
if CAD drawing structure design data exist, the CAD drawing structure design data are directly read through a structure rapid modeling plug-in, and a structure BIM model containing reinforcing steel bars is built; if no CAD drawing structure design data exists, the structure BIM model containing the reinforcing steel bars is directly designed and automatically built according to the structure design requirement through a structure rapid modeling plug-in;
step three, checking the generated structural reinforcement model, and returning to the step two for correction or directly modifying by BIM software if the reinforcement information is wrong;
fourthly, after the reinforcement information of the reinforcement model is correct, generating a reinforcement detail table through the structure BIM model;
step five, generating an initial bill of the reinforcing steel bar;
step six, optimizing the steel bar blanking on the basis of the initial material list of the steel bars so as to form a steel bar blanking list;
step seven, the generated steel bar blanking list is put down in the form of a two-dimensional code or other information carriers;
step eight, on-site operators introduce a steel bar blanking list to numerical control processing equipment;
and step nine, running numerical control machining equipment to finish corresponding automatic machining of the steel bars.
2. The numerical control machining method of steel bars according to claim 1, wherein in the second step, the building structure BIM model includes reinforcement information of corresponding components.
3. The numerical control machining method of steel bars according to claim 1, wherein the modification in the third step can be directly performed in the generated structural BIM model.
4. The numerical control machining method of the steel bars according to claim 1, wherein the step five is to generate an initial bill of the steel bars by combining a steel bar blanking software module, a steel bar sample turning rule and on-site steel bar machining experience.
5. The numerical control machining method of steel bars according to claim 1, wherein the optimization in the step six is specifically: and starting the reinforcement cutting optimization software or starting the reinforcement cutting optimization module, reading the reinforcement basic data in the reinforcement preliminary stock list to form different reinforcement cutting optimization schemes, solving the optimal reinforcement cutting scheme by the reinforcement cutting optimization software, then carrying out blanking optimization sequencing on the reinforcement, generating a reinforcement blanking list, and simultaneously automatically creating a reinforcement layout diagram of the corresponding member.
6. The numerical control machining method of steel bars according to claim 5, wherein the steel bar basic data includes: reinforcing bar style, reinforcing bar specification, reinforcing bar size, reinforcing bar quantity.
7. The numerical control processing method of the steel bar according to claim 1, wherein the seventh step is to store the related data of the steel bar blanking list into a cloud or a server, automatically generate a two-dimensional code steel bar bill, and directly issue the two-dimensional code to an operator.
8. The numerical control machining method of steel bars according to claim 1, wherein the step eight is specifically: the field operation personnel butt-joint the two-dimensional code reinforcing steel bar bill with the numerical control processing equipment, scan the two-dimensional code through the code scanner on the numerical control processing equipment, and the numerical control processing equipment can display processing tasks in sequence.
9. The numerical control machining method of steel bars according to claim 1, wherein the step nine is specifically: the field operator selects a processing task, starts the numerical control processing equipment, and the raw materials of the steel bars automatically complete the straightening, bending and cutting procedures through the numerical control processing equipment, so that the whole process of numerical control processing of the steel bars based on BIM is finally completed, and the aim of no waste or lowest waste rate in the steel bar processing is fulfilled.
10. The steel bar numerical control machining equipment based on the BIM technology comprises BIM host equipment and a numerical control machine tool;
the BIM host equipment comprises a design data importing module, a steel bar-containing structure BIM model rapid generation module, a structure steel bar model correction module, a steel bar initial bill generation module, a steel bar blanking cutting optimization module and a steel bar bill sending module;
the numerical control machine tool comprises a numerical control machine tool control unit, a steel bar material sheet receiving module, a steel bar blanking sheet leading-in unit and an automatic processing unit;
the BIM host equipment is connected with the numerical control machine tool through data transmission equipment;
the design data importing module imports CAD drawing structure design data;
the rapid generation module of the BIM model of the reinforcement-containing structure directly reads CAD drawing structure design data through the rapid structure modeling plug-in if CAD drawing structure design data exists, and establishes a BIM model of the structure containing reinforcement; if no CAD drawing structure design data exists, the structure BIM model containing the reinforcing steel bars is directly designed and automatically built according to the structure design requirement through a structure rapid modeling plug-in;
the structural reinforcement model correction module is used for checking the generated structural reinforcement model, and correcting structural information or a structural BIM model through a structural rapid modeling plug-in unit or directly modifying through BIM software if the reinforcement information is wrong;
the steel bar initial bill generation module generates a steel bar initial bill;
the steel bar blanking cutting optimization module is used for carrying out steel bar blanking cutting optimization on the basis of the initial material list of the steel bars so as to form the steel bar blanking list;
and the steel bar bill sending module is used for sending the generated steel bar bill to the numerical control machine in a two-dimensional code or other information carrier mode.
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