CN103473274A - Method of constructing machining three-dimensional technological process card - Google Patents
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Abstract
The invention relates to a method of constructing a machining three-dimensional technological process card. The method includes the steps of generating a machining three-dimensional lightweight file, storing information, and generating a technological process card. The method has the advantages that the problem that the traditional two-dimensional mode process is difficult to organize and manage currently so that details and requirements of the machining process cannot be reflected visually and interactively is solved, a three-dimensional lightweight dynamic process model is directly used for guiding production, machining features and corresponding process information can be acquired visually, production and preparation cycles are shortened, and production efficiency is improved.
Description
Technical Field
The invention relates to an information system of a machining three-dimensional process, in particular to a method for constructing a machining three-dimensional process specification card.
Background
Three-dimensional CAD (computer Aided design) system has become the basic platform for enterprise digital design and manufacture, and the realization of product design based on the three-dimensional CAD system is very popular. However, the current machining process design is manually compiled based on a two-dimensional drawing, the technical level and experience of process personnel are excessively depended on, the design is not standard, the compiling period is long, the two-dimensional CAPP system only provides a platform for process compilation, the process personnel are assisted to generate a two-dimensional process card, the organization and the management of the process are difficult, the details and the requirements of the machining process cannot be intuitively and interactively reflected, and the difficulty is brought to the understanding and the use of downstream personnel.
With the rapid development of the MBD (Model Based Definition) technology in China, the development of the process design of the three-dimensional environment becomes a research hotspot of the current digital design and manufacturing, which aims to realize the process design and application of machining by using a three-dimensional means, cancel a two-dimensional drawing and a process card, and guide the machining by using a three-dimensional process Model as the only basis for production and manufacturing. The machining three-dimensional process design can be divided into three stages of three-dimensional process design, three-dimensional process information management and three-dimensional process field application. The three-dimensional process design stage mainly comprises the steps of process model construction, process information expression, process structure tree construction, process model lightweight release and the like; the three-dimensional process information management mainly completes the work of the associated storage, the version management, the examination and signing process management, the authority management and the like of the three-dimensional process data; the three-dimensional process field application refers to the steps of calling three-dimensional process data in a database and loading the three-dimensional process data and the incidence relation of the three-dimensional process data into a three-dimensional process rule card template, constructing a three-dimensional process rule card for part machining, and providing a query and browsing environment for three-dimensional machining for a machining field. Many scholars have conducted a lot of research on the design of a machining three-dimensional process, but at present, no more mature machining three-dimensional process design software exists. In view of this, the applicant filed a title of "a method for constructing a dynamic three-dimensional process model" and "a method for expressing process information based on a three-dimensional model" from the national intellectual property office on day 6, month 4 in 2012, thereby better solving the problems of process model construction and process information expression.
For the generation of three-dimensional process files, chinese patent specification CN100559375C (WEB-based three-dimensional assembly process files and field teaching realization method, patent No. ZL 200810018965.8) discloses a method for compiling three-dimensional assembly process files and assembly animations via Internet/Intranet, which can conveniently and intuitively teach operators on the assembly field. However, in the three-dimensional assembly process file obtained in this way, a manufacturer can only play the assembly animation defined by the design end, cannot perform rotation, scaling and translation operations, cannot understand and grasp the process as a whole, and cannot highlight the area to be assembled and completely express process detail information because the view angle of the assembly animation is fixed, so that an ideal effect is difficult to achieve. After the MBD technology is adopted, the process information is also integrated in the three-dimensional model, and people with different roles in the process and the manufacturing process can obtain the manufacturing information through the MBD model. The current MBD process model construction is generated in a CAD environment, and various information such as dimension, tolerance, geometric accuracy, surface structure, process information and the like are integrated at the same time, so that the MBD process model cannot be directly used for guiding production. If the machining model is complex, the data volume is very large, and difficulty is brought to visual viewing and browsing. Meanwhile, for workshop workers, expensive and complex original CAD tools are not needed to browse, and only the processing information related to the process where the workshop workers are located and the processes of the workshop workers going up and down is needed to be obtained.
Disclosure of Invention
In order to overcome the defects that the organization and the management of the process are difficult in a two-dimensional mode, the details and the requirements of the processing process cannot be intuitively and interactively reflected, and the like, the invention aims to provide a method for constructing a machining three-dimensional process regulation card which can carry out interactive operation, directly guide manufacturing personnel and is convenient to understand and use, and the method comprises three steps of machining three-dimensional lightweight file generation, information storage and process regulation card generation; wherein,
1) and (3) generating a machined three-dimensional lightweight file: at a process design end, issuing a process model into a series of machining three-dimensional lightweight files facing a manufacturing process, wherein the process model is a three-dimensional model which is constructed on the basis of a process reference model and contains part machining characteristics and information;
2) information storage: storing the lightweight file and the process procedure information to corresponding positions of a PDM system in an associated manner;
3) generating a process rule card: and loading the lightweight file and the process procedure information stored in the PDM system to a corresponding area of a three-dimensional process procedure card template developed based on an IE browser, generating a machining three-dimensional process procedure card, storing the machining three-dimensional process procedure card in the PDM system, and pushing the machining three-dimensional process procedure card to a production workshop through a data interface to assist workers in machining.
As a further improvement of the step 1) of the above scheme, the machined three-dimensional lightweight file comprises a process lightweight file and a process lightweight file, and the generating steps are as follows:
1) copying a process model as a release basis, namely a temporary process model, and hiding all labeling information of the temporary process model, wherein the process model comprises n process nodes, and the ith process node comprises miA step node, wherein i = n, n-1iAnd n are positive integers;
2) recovering all the label information under the ith process node in the temporary process model according to the process node based on the process procedure sequence, identifying the characteristics under the ith process node, performing dynamic coloring treatment, and generating an ith process lightweight file through publishing;
3) judgment miIf the result is more than 1, executing the step 4) if the result is more than 1), and directly executing the step 6) if the result is not more than 6);
4) restoring the characteristics of the ith process node into an initial color through dynamic coloring treatment, hiding all marking information under the ith process node, restoring the marking information of the jth process step node, performing dynamic coloring treatment on the characteristics of the jth process step node, and generating a jth process step lightweight file under the ith process node through publishing, wherein j = mi,mi-1,...1；
5) Deleting the label and the characteristic information of the jth process step node, executing j- -, judging whether j =0 is true, if true, executing step 6), and if false, executing step 4);
6) deleting all labels and characteristic information under the ith process node in the temporary process model, executing i- -, judging whether i =0 is true, if so, finishing the distribution, and if not, executing step 2).
As a further improvement of step 2) of the above scheme, the information storage comprises the steps of:
1) storing the procedure lightweight file and the procedure lightweight file generated by release to corresponding positions in a PDM system;
2) storing the process procedure information into a corresponding data table in the PDM system, and establishing an incidence relation between the process procedure information and the lightweight file through a database technology.
As a further improvement of the step 3) of the above scheme, the generating of the process rule card refers to loading the lightweight file and the process rule information stored in the PDM system to corresponding regions of the three-dimensional process rule card template respectively by triggering of the process rule nodes, so as to generate the process rule card.
The series of machining three-dimensional lightweight files are issued and generated based on the same process model, and the file generation sequence is strictly executed according to the process procedure tree sequence.
The series of machined three-dimensional lightweight files are in a ProductView format with a file suffix name of. pvz or. edz.
The process lightweight file comprises geometric characteristics and marking information of a process model corresponding to a process node in the process rule tree, and processing characteristics and non-processing characteristics of the process are distinguished through dynamic coloring treatment; the step lightweight file comprises the geometric characteristics and the marking information of a step node corresponding to the step model in the process rule tree, and the processing characteristics and the non-processing characteristics of the step are distinguished through dynamic coloring treatment.
The dynamic coloring treatment is to add predefined colors to the processing characteristics under the process and the step nodes so as to distinguish the processing characteristics and the non-processing characteristics under the process and the step nodes by colors.
The data table comprises a model information table, a procedure information table, a process step information table, a material information table, an equipment information table, a processing method information table, a cutter information table, a processing parameter information table, a cutting fluid information table and a tool information table. The model information table stores information such as a drawing number, a model ID, a part name, a version, a state, a material grade and the like of the process model, is associated with the material information table through the material grade, and simultaneously records the blank size of the part; the process information table stores contents such as model ID, process name, equipment number, drawing numbers of all tools used in the process, process lightweight file name, working hour quota, process description and the like of the process model, and is respectively associated with the model information table, the equipment information table and the tool information table through the model ID, the equipment number and the tool drawing number, and the process lightweight file name is associated with a process lightweight file in the PDM system; the step information table stores contents of a process ID, a step name, a step lightweight file name, a processing method ID, a cutter ID, a processing parameter, a cutting fluid ID, a tool drawing number, a step description and the like of the process model, and the step lightweight file name is associated with a step lightweight file in the PDM system through the process ID, the processing method ID, the cutter ID, the processing parameter, the cutting fluid ID and the tool drawing number which are respectively associated with the process information table, the processing method information table, the cutter information table, the processing parameter information table, the cutting fluid information table and the tool information table.
The invention relates to a method for constructing a machining three-dimensional process regulation card, which aims at the field machining requirement of a three-dimensional process, generates the machining three-dimensional process regulation card capable of performing interactive operation and directly guiding field machining by lightweight issuing of an MBD process model, structural associated storage of information and information loading of the process regulation card, and overcomes the defects that the organization and management of the process are difficult and the details and the requirement of the machining process cannot be intuitively and interactively reflected in the traditional two-dimensional mode.
Drawings
FIG. 1 is a flow chart of the present invention;
FIG. 2 is a flow chart of the three-dimensional lightweight file generation of the present invention;
FIG. 3 is a schematic view of the structured and related storage of lightweight file and process model information according to the present invention;
FIG. 4 is a process specification organization interface for a machined part;
FIG. 5 is a publishing result set interface;
FIG. 6 is a diagram illustrating a distribution result;
FIG. 7 is a published results management interface;
FIG. 8 is a schematic view of a three-dimensional process specification card for machining a part;
FIG. 9 is a schematic diagram of a part machining three-dimensional process specification card shop application.
Wherein, 1: a title area; 2: a material region; 3: a structure tree region; 4: a text region; 5: a frontal area; 6: an audit area; 7: and (4) a model area.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Fig. 1 is a flow chart of the present invention, and the method for constructing a machined three-dimensional process specification card includes three steps of machining three-dimensional lightweight file generation, information storage, and process specification card generation:
1) and (3) generating a machined three-dimensional lightweight file: at a process design end, issuing a process model into a series of machining three-dimensional lightweight files facing a manufacturing process, wherein the process model is a three-dimensional model which is constructed on the basis of a process reference model and contains part machining characteristics and information;
2) information storage: storing the lightweight file and the process procedure information to corresponding positions of a PDM system in an associated manner;
3) generating a process rule card: and loading the lightweight file and the process procedure information stored in the PDM system to a corresponding area of a three-dimensional process procedure card template developed based on an IE browser, generating a machining three-dimensional process procedure card, storing the machining three-dimensional process procedure card in the PDM system, and pushing the machining three-dimensional process procedure card to a production workshop through a data interface to assist workers in machining.
The process model refers to a three-dimensional model which is constructed on the basis of a process reference model and contains part processing characteristics and information, and the specific construction method can be referred to in the invention patent application of 'a construction method of a dynamic three-dimensional process model', which is filed by the applicant on 6, 4/2012.
As a further improvement of the above solution step 1), fig. 2 is a flowchart of the generation of a three-dimensional lightweight file according to the present invention, wherein the three-dimensional lightweight file is machined by the following steps:
1) copying a process model as a release basis, namely a temporary process model, and hiding all labeling information of the temporary process model, wherein the process model comprises n process nodes, and the ith process node comprises miA step node, wherein i = n, n-1iAnd n are positive integers;
2) recovering all the label information under the ith process node in the temporary process model according to the process node based on the process procedure sequence, identifying the characteristics under the ith process node, performing dynamic coloring treatment, and generating an ith process lightweight file through publishing;
3) judgment miIf the result is more than 1, executing the step 4) if the result is more than 1), and directly executing the step 6) if the result is not more than 6);
4) restoring the characteristics of the ith process node into an initial color through dynamic coloring treatment, hiding all marking information under the ith process node, restoring the marking information of the jth process step node, performing dynamic coloring treatment on the characteristics of the jth process step node, and generating a jth process step lightweight file under the ith process node through publishing, wherein j = mi,mi-1,...1；
5) Deleting the label and the characteristic information of the jth process step node, executing j- -, judging whether j =0 is true, if true, executing step 6), and if false, executing step 4);
6) deleting all labels and characteristic information under the ith process node in the temporary process model, executing i- -, judging whether i =0 is true, if so, finishing the distribution, and if not, executing step 2).
As a further improvement of the above step 2), fig. 3 is a schematic view of the lightweight file and the process model information structured association storage according to the present invention. The information storage comprises the following steps:
1) storing the procedure lightweight file and the procedure lightweight file generated by release to corresponding positions in a PDM system;
2) storing the process procedure information into a corresponding data table in the PDM system, and establishing an incidence relation between the process procedure information and the lightweight file through a database technology.
As a further improvement of the above-mentioned step 3), with reference to fig. 4, 5, 6, 7, and 8, the generation of the process rule card refers to loading the lightweight file and the process rule information stored in the PDM system into corresponding regions of the three-dimensional process rule card template by triggering process rule nodes, so as to generate the process rule card. The process lightweight file and the process lightweight file are loaded to a model area 7 of the three-dimensional process procedure card, model information table information is loaded to a material area 2 and a title area 1, process information table and process information table information are loaded to a structure tree area 3 and a text area 4, and process information combined symbol information table information is loaded to the text area 4; lightweight file and data table information is triggered by the structure tree region 3.
In the technical scheme, the series of machining three-dimensional lightweight files are issued and generated based on the same process model, and the file generation sequence is strictly executed according to the process procedure sequence.
The series of machined three-dimensional lightweight files are in a ProductView format with a file suffix name of. pvz or. edz.
The process lightweight file comprises geometric characteristics and marking information of a process model corresponding to a process node in the process rule tree, and processing characteristics and non-processing characteristics of the process are distinguished through dynamic coloring treatment; the step lightweight file comprises the geometric characteristics and the marking information of a step node corresponding to the step model in the process rule tree, and the processing characteristics and the non-processing characteristics of the step are distinguished through dynamic coloring treatment.
The dynamic coloring treatment is to add predefined colors to the processing features under the process/step nodes so as to distinguish the processing features and the non-processing features under the process/step nodes by colors.
The data table comprises a model information table, a procedure information table, a process step information table, a material information table, an equipment information table, a processing method information table, a cutter information table, a processing parameter information table, a cutting fluid information table and a tool information table. The model information table stores information such as a drawing number, a model ID, a part name, a version, a state, a material grade and the like of the process model, is associated with the material information table through the material grade, and simultaneously records the blank size of the part; the process information table stores contents such as model ID, process name, equipment number, drawing numbers of all tools used in the process, process lightweight file name, working hour quota, process description and the like of the process model, and is respectively associated with the model information table, the equipment information table and the tool information table through the model ID, the equipment number and the tool drawing number, and the process lightweight file name is associated with a process lightweight file in the PDM system; the step information table stores contents of a process ID, a step name, a step lightweight file name, a processing method ID, a cutter ID, a processing parameter, a cutting fluid ID, a tool drawing number, a step description and the like of the process model, and the step lightweight file name is associated with a step lightweight file in the PDM system through the process ID, the processing method ID, the cutter ID, the processing parameter, the cutting fluid ID and the tool drawing number which are respectively associated with the process information table, the processing method information table, the cutter information table, the processing parameter information table, the cutting fluid information table and the tool information table.
The following describes the method of constructing the machined three-dimensional process specification card in detail by way of example.
Referring to fig. 4, 5, 6, 7 and 8, the three-dimensional process model of a part (reference number AA8.230.10312) in the Pro/EWF5.0 environment includes 10 process nodes, and each process node includes the number of process nodes of 0, 4, 0, 0, 5, 0, 0, 0, 0 and 0 in sequence. Referring to fig. 4, the information of the figure number, material, version, etc. is directly read from the model tree information in the Pro/E environment. In fig. 3, "generating a lightweight file" means issuing a generated procedure lightweight file and a procedure lightweight file on a process model according to the flow of fig. 2, "writing in a database" means storing process procedure information into a data table corresponding to the windchilll 9.1 system according to the association relationship shown in fig. 3, "checking in a PDM" means storing the generated procedure lightweight file and the procedure lightweight file into a designated position in the windchilll 9.1, and the designated position may be configured in advance, as shown in fig. 5. Fig. 5 defines information such as the address of the windchilll9.1 server, the storage location of the lightweight file, and the color for distinguishing the model features in advance. Clicking the result publishing button in fig. 4, the lightweight file and the process procedure are saved to the predefined position in windchilll 9.1, wherein the storage result of the lightweight file is shown in fig. 6. After the release is completed, management of the release result of the machining process is realized in windchilll 9.1, as shown in fig. 7. Clicking pvz file under 'release result' in fig. 7, triggering the machining of the three-dimensional process rule card template, and simultaneously loading the lightweight file and data table information stored in windchilll 9.1 into the three-dimensional process rule card template according to the incidence relation shown in fig. 3, so as to realize lightweight release of the process model separated from the CAD platform and complete construction of the three-dimensional process rule card. The interface of the three-dimensional process rule card is shown in fig. 8 and is mainly divided into a title area 1, a material area 2, a structure tree area 3, a model area 7, a text area 4, a rating area 5, an auditing area 6 and the like. The title area 1 mainly records information such as the drawing number, the name, the version and the like of the part and directly reads the information from the model information table; the material area 2 displays the material attributes of the part, including material codes, material names, material marks, material specifications and the like, and directly reads the material attributes from the model information table; the structure tree area 3 indicates the processing process of the part, is constructed by process and step nodes and is read from a process information table and a step information table; the model area 7 mainly displays a procedure/step lightweight release model of parts, covers required processing information, displays characteristics of required processing through color highlighting, and is triggered by loading lightweight file names from WindChill9.1 through procedures and step nodes of a structure tree area; the text area 4 mainly describes the information of the processing process of the working procedure/working step, including the process information of the working step name, the tool, the cutting fluid, the processing parameters, the cutter, the attention points and the like; the rating region 5 is used for rating personnel to input rating information such as a standard knot, a single piece, a base number and the like according to a process structure tree and a process release result, and click 'save' to record the rating information; the auditing area 6 mainly aims at people with different roles (a process designer, a quota, an auditor and an approver), and provides modification opinions by auditing the process design in the three-dimensional process rule card to complete process auditing. Clicking the 5.5 vehicle steps in the structure tree area of the figure 8, loading the light weight files and the data table information of the process step corresponding to the process step into a three-dimensional process rule card template, generating a process rule card, and displaying the processing characteristics of the process step in a highlight color (red). The process rule card is stored in Windchilll 9.1, is pushed to a workshop through a data interface, and strictly controls the checking authority of workers in the workshop through authority definition, so that the workers obtain the checking authority of a corresponding level and acquire production information. A schematic diagram of the plant is shown in fig. 9.
The invention realizes that the original MBD process model generated by the CAD tool can be gradually converted into a light-weight neutral format facing the machining process through the Information system, the light-weight format file not only needs the geometric entity Information included in the working procedure/working procedure, but also needs PMI Information (Product Manufacturing Information) of the original MBD process model, such as dimension, tolerance, geometric precision, equipment, tooling and the like, so that the accurate and effective MBD model can be conveniently found through the light-weight tool on a common computer without depending on the original CAD tool. The method comprises the steps that the PMI information conversion in main-stream CAD platform MBD models such as Pro/E, CATIAV5 is supported by ProductView software provided by a PTC company at present, good MBD model visualization operation capability is provided, a user can rotate, cut, annotate, measure the size, generate an explosion diagram and the like of an MBD three-dimensional model through the ProductView, the size, tolerance and other marking information can be directly added into the ProductView, the PMI is annotated, and meanwhile, the annotation result can be stored in Windhill to be checked by other people. The ProductView has a good data lightweight function, and can support direct viewing and browsing of a large-scale three-dimensional model on a common computer, so that the visual viewing and browsing requirements of a complex machining model can be well met.
The invention relates to a method for constructing a machining three-dimensional process regulation card, which aims at the field machining requirement of a three-dimensional process, generates the machining three-dimensional process regulation card capable of performing interactive operation and directly guiding field machining by lightweight issuing of an MBD process model, structured associated storage of information, loading of information of the process regulation card and authority definition, and overcomes the defects that the organization and management of the process are difficult in a traditional two-dimensional mode, and the details and the requirements of the machining process cannot be intuitively and interactively reflected.
The components and process flows not described in detail in this embodiment are well known in the art and commonly used in the art, and are not described in detail herein.
Claims (9)
1. A method for constructing a three-dimensional machining process specification card is characterized by comprising the following steps: the method comprises three steps of machining three-dimensional lightweight file generation, information storage and process specification card generation; wherein,
1) and (3) generating a machined three-dimensional lightweight file: at a process design end, issuing a process model into a series of machining three-dimensional lightweight files facing a manufacturing process, wherein the process model is a three-dimensional model which is constructed on the basis of a process reference model and contains part machining characteristics and information;
2) information storage: storing the lightweight file and the process procedure information to corresponding positions of a PDM system in an associated manner;
3) generating a process rule card: and loading the lightweight file and the process procedure information stored in the PDM system to a corresponding area of a three-dimensional process procedure card template developed based on an IE browser, generating a machining three-dimensional process procedure card, storing the machining three-dimensional process procedure card in the PDM system, and pushing the machining three-dimensional process procedure card to a production workshop through a data interface to assist workers in machining.
2. The method of claim 1, wherein the method comprises the steps of: the machining three-dimensional lightweight file comprises a process lightweight file and a process lightweight file, and the generating steps are as follows:
1) copying a process model as a release basis, namely a temporary process model, and hiding all labeling information of the temporary process model, wherein the process model comprises n process nodes, and the ith process node comprises miA step node, wherein i = n, n-1iAnd n are positive integers;
2) recovering all the label information under the ith process node in the temporary process model according to the process node based on the process procedure sequence, identifying the characteristics under the ith process node, performing dynamic coloring treatment, and generating an ith process lightweight file through publishing;
3) judgment miIf the result is more than 1, executing the step 4) if the result is more than 1), and directly executing the step 6) if the result is not more than 6);
4) restoring the characteristics of the ith process node into an initial color through dynamic coloring treatment, hiding all marking information under the ith process node, restoring the marking information of the jth process step node, performing dynamic coloring treatment on the characteristics of the jth process step node, and generating a jth process step lightweight file under the ith process node through publishing, wherein j = mi,mi-1,...1；
5) Deleting the label and the characteristic information of the jth process step node, executing j- -, judging whether j =0 is true, if true, executing step 6), and if false, executing step 4);
6) deleting all labels and characteristic information under the ith process node in the temporary process model, executing i- -, judging whether i =0 is true, if so, finishing the distribution, and if not, executing step 2).
3. The method of claim 1, wherein the method comprises the steps of: the information storage comprises the following steps:
1) storing the procedure lightweight file and the procedure lightweight file generated by release to corresponding positions in a PDM system;
2) storing the process procedure information into a corresponding data table in the PDM system, and establishing an incidence relation between the process procedure information and the lightweight file through a database technology.
4. The method of claim 1, wherein the method comprises the steps of: the generation of the process procedure card refers to that the lightweight file and the process procedure information stored in the PDM system are respectively loaded to corresponding areas of a three-dimensional process procedure card template through the triggering of process procedure nodes to generate the process procedure card.
5. The method of claim 1, wherein the method comprises the steps of: the series of machining three-dimensional lightweight files are issued and generated based on the same process model, and the file generation sequence is strictly executed according to the process procedure tree sequence.
6. The method of claim 1, wherein the method comprises the steps of: the series of machined three-dimensional lightweight files are in a ProductView format with a file suffix name of. pvz or. edz.
7. The method of claim 2, wherein the method comprises the steps of: the process lightweight file comprises geometric characteristics and marking information of a process model corresponding to a process node in the process rule tree, and processing characteristics and non-processing characteristics of the process are distinguished through dynamic coloring treatment; the step lightweight file comprises the geometric characteristics and the marking information of a step node corresponding to the step model in the process rule tree, and the processing characteristics and the non-processing characteristics of the step are distinguished through dynamic coloring treatment.
8. The method of claim 2, wherein the method comprises the steps of: the dynamic coloring treatment is to add predefined colors to the processing features under the process/step nodes so as to distinguish the processing features and the non-processing features under the process/step nodes by colors.
9. The method of claim 3, wherein the method comprises the steps of: the data table comprises a model information table, a procedure information table, a process step information table, a material information table, an equipment information table, a processing method information table, a cutter information table, a processing parameter information table, a cutting fluid information table and a tool information table. The model information table stores information such as a drawing number, a model ID, a part name, a version, a state, a material grade and the like of the process model, is associated with the material information table through the material grade, and simultaneously records the blank size of the part; the process information table stores contents such as model ID, process name, equipment number, drawing numbers of all tools used in the process, process lightweight file name, working hour quota, process description and the like of the process model, and is respectively associated with the model information table, the equipment information table and the tool information table through the model ID, the equipment number and the tool drawing number, and the process lightweight file name is associated with a process lightweight file in the PDM system; the step information table stores contents of a process ID, a step name, a step lightweight file name, a processing method ID, a cutter ID, a processing parameter, a cutting fluid ID, a tool drawing number, a step description and the like of the process model, and the step lightweight file name is associated with a step lightweight file in the PDM system through the process ID, the processing method ID, the cutter ID, the processing parameter, the cutting fluid ID and the tool drawing number which are respectively associated with the process information table, the processing method information table, the cutter information table, the processing parameter information table, the cutting fluid information table and the tool information table.
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