A method for compiling process specifications by adaptively splitting skeleton process steps

By adaptively splitting the skeleton process steps, marking the stacking order and connection relationship of parts, generating coarse and fine processes, and establishing a process parameter library and template, the problem of unreasonable splitting of special processes in the process regulations is solved, and efficient and accurate process splitting and sorting are achieved.

CN120354537BActive Publication Date: 2025-09-09CHENGDU AIRCRAFT INDUSTRY GROUP
View PDF 2 Cites 0 Cited by

Patent Information

Application Number
CN202510847135.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-06-24
Publication Date
2025-09-09
Estimated Expiration
2045-06-24

AI Technical Summary

Technical Problem

In the existing technology, the reasonable splitting of special processes in the process specifications is inefficient and inaccurate, the manual splitting is inefficient, and the automatic splitting method does not divide the processes reasonably.

Method used

By adaptively splitting the skeleton process steps, marking the order of the pile formed by the parts and the connection relationship between the parts in the pile, generating a rough process and further splitting it into fine processes, building a sorting field set, establishing a process parameter library and template, and compiling process procedure documents.

Benefits of technology

It achieves efficient and accurate splitting and sorting of special processes, and improves the efficiency and accuracy of process splitting and sorting.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN120354537B_ABST
    Figure CN120354537B_ABST
Patent Text Reader

Abstract

The present invention relates to the technical field of aircraft manufacturing, and discloses a method for compiling process specifications by adaptively splitting skeleton process steps. The method splits a special process by marking the order of piles formed by parts and the order of parts in the piles, and then the connection relationship between the parts in the piles and the connection relationship between the parts between piles, obtains a rough process, and further splits the rough process into fine processes to complete the sorting of the special processes. Finally, a process specification template is formed, and a process specification document is compiled according to the process specification template. The method realizes efficient and accurate splitting of the special process of the skeleton process specification process step, and solves the technical problems in the prior art of low efficiency and inaccurate splitting of the special processes in the process specification when reasonably splitting the special processes in the process specification, and unreasonable division of the processes by the automatic splitting method.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The present invention relates to the technical field of aircraft manufacturing, in particular to a method for compiling process specifications by adaptively splitting skeleton process steps. Background Art

[0002] A process specification is a production process document compiled by the process department based on design, process technology, and quality requirements. It includes not only process information but also production and quality information. It provides specific instructions for workers to perform specific assembly processes, including operating instructions, procedures, assembly sequence, and change logs.

[0003] How to rationally split specific processes within a process specification is a crucial issue in process specification compilation. In existing technologies, manual splitting is often performed by process personnel based on their experience. However, due to the varying experience and technical skills of these personnel, the process splitting is inaccurate. Other automated splitting methods simply split existing processes based on assembly execution time, but lack the rationality of the process divisions.

[0004] Therefore, in the prior art, there are technical problems such as low efficiency and inaccurate splitting of special processes in the process specification, and unreasonable division of processes by automatic splitting methods. Summary of the Invention

[0005] The purpose of the present invention is to provide a method for compiling process specifications by adaptively splitting skeleton process steps. By marking the order of the piles formed by parts and the order of the parts in the piles, and then the connection relationship between the parts in the piles and the connection relationship between the parts between piles, the special processes are split, and the rough processes are obtained and further split into fine processes to complete the sorting of special processes. Finally, a process specification template is formed to compile a process specification document based on the process specification template, thereby achieving efficient and accurate splitting of the special process of the skeleton process specification process step, and solving the technical problems in the prior art of low efficiency and inaccurate manual splitting when reasonably splitting the special processes in the process specifications, and unreasonable division of the processes by the automatic splitting method.

[0006] The present invention is achieved through the following technical solutions:

[0007] A method for compiling process specifications by adaptively splitting skeleton process steps. First, based on the digital model information of the skeleton structure assembly, the parts to be assembled are determined and the parts are assembled into different piles. The order of the piles and the order of the parts to be assembled within the piles are marked according to the coordinates of the parts in each pile and the coordinates of the parts within the pile.

[0008] Secondly, the digital-analog information is parsed to obtain the digital-analog connection relationship between the parts to be assembled. Based on the digital-analog connection relationship, the intra-pile connection relationship between the parts in the pile and the inter-pile connection relationship between the parts between piles are obtained;

[0009] Then, based on the intra-pile connection relationship and inter-pile connection relationship, a coarse process is generated and the coarse process is split into fine processes according to the set of connector types;

[0010] Then, based on the connector type set, a sorting field set is constructed, and the coarse and fine processes are sorted according to the sorting field set to obtain the skeleton process specification process set;

[0011] Finally, a process parameter library is established based on the skeleton process specification process set; the association between the skeleton assembly elements and the skeleton process specification process set is established, and a skeleton process specification template is constructed; the skeleton process specification is compiled based on the digital model information, the skeleton process specification template and the process parameters corresponding to the skeleton process specification process set.

[0012] To better implement the present invention, further, based on the digital model information of the skeleton structure assembly, the parts to be assembled are determined and the part sets are constructed to form different piles, and the order of the piles and the order of the parts to be assembled in the piles are marked according to the coordinates of the parts in each pile and the coordinates of the parts in the pile, including:

[0013] Select the parts of the aircraft to be assembled and form different piles d ;

[0014] Analyze MBD digital model parts and part coordinates, and record the parts as , the coordinates are marked as ,in part i For the i parts, poit i For the i The coordinates of the parts;

[0015] The order of marking the kth pile is , ( x,y,z ) is the coordinate value of the part, represents the average coordinate value of the part, is the minimum value among the average values ​​of the coordinates of all parts in the pile;

[0016] Calculate the order of parts to be assembled in the pile based on the part coordinates , dsort i Indicates the first The order of the parts, For the i The average coordinates of the parts.

[0017] To better implement the present invention, further, a method for parsing digital-analog information, obtaining digital-analog connection relationships between parts to be assembled, and obtaining intra-pile connection relationships between parts within a stack and inter-pile connection relationships between parts between stacks based on the digital-analog connection relationships includes:

[0018] Analyze MBD digital models and build part relationship sets ,in, r n is the relationship of the nth part;

[0019] According to the part relationship set, identify the connection relationship within the pile and build the first connection set between the parts in the pile , ra n Indicates the connection relationship of the nth part, including parts and connectors; marks the first order of connectors in the first connector set as ,in , ras i Indicates the first connector set The order of the connectors, i.e. The order of the connectors corresponds to the order of the parts;

[0020] According to the part relationship set, identify the inter-stack connection relationship and build the second connection set between the inter-stack parts and parts. , rb n Indicates the connection relationship of the nth part, including parts and connectors; marks the second order of connectors in the second connector set as ,in, , rbs i Indicates the first i The order of the connectors, i.e. i The order of the connectors is the order of their corresponding stacks.

[0021] By analyzing the MBD digital model, the intra-stack connection relationship and the inter-stack connection relationship can be accurately identified to characterize the relevant connection parts sequence, so that this embodiment can adaptively split the MBD digital model.

[0022] To better implement the present invention, a method for generating a coarse process based on the intra-stack connection relationship and the inter-stack connection relationship and splitting the coarse process into fine processes according to the connector type set includes:

[0023] Assemble the first connector In first order Group and obtain the first split group , get the rough process between n parts in the pile, g n is the number of nth rough processes between the parts in the split pile; the first connecting part set In first order ras Split into n groups and obtain n rough processes;

[0024] Assemble the second connector According to the second order Group and obtain the second split group , get the rough process between m inter-stack parts, gb m is the number of rough processes between the split inter-stack parts; the second connector set rb According to the second order rbs Split into m groups and obtain m rough processes;

[0025] Construct a connector type set c, based on the first split group , second split group and the connector type set c, split the coarse process between n intra-pile parts and the coarse process between m inter-pile parts to obtain de fine processes, where de ≥ m + n.

[0026] In order to better implement the present invention, further, a sorting field set is constructed according to the connector type set, and the coarse processes and fine processes are sorted according to the sorting field set to obtain a skeleton process specification process set. The method includes:

[0027] Construct a sorting field set based on the connector type set c;

[0028] For a single rough process or fine process, form a work step according to the fields in the sorting field set;

[0029] According to the work steps, rough processes and detailed processes, the skeleton process specification processes are generated and sorted to obtain the skeleton process specification process set.

[0030] In order to better implement the present invention, further, according to the skeleton process specification process set, a method for establishing a process parameter library includes:

[0031] Build a component assembly connection process parameter library based on knowledge and rules, establish the association relationship between connection process parameters and process parameter library, and build two parameter acquisition modes: unified push data and active retrieval data.

[0032] In order to better implement the present invention, further, the association relationship between the skeleton assembly elements and the skeleton process specification process set is established, and the method for constructing the skeleton process specification template includes:

[0033] Analyze one by one whether the connectors are component assembly elements, associate the connectors of the component assembly elements with the process procedure set, obtain the connection flow, and then obtain the processes of the starting part and the ending part, and combine them to form a complete skeleton process procedure template.

[0034] In order to better implement the present invention, further, a method for compiling a skeleton process specification based on the digital model information, the skeleton process specification template and the process parameters corresponding to the skeleton process specification process set includes:

[0035] First, based on the digital model information, define the type of connector process parameters and build the logic for obtaining connector process parameters. Then, according to the required form of the skeleton process specification template, put the obtained connector process parameters into the corresponding positions of the process parameters and the skeleton process specification process attribute information in the skeleton process specification template to complete the compilation of the skeleton process specification.

[0036] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0037] By marking the order of the piles formed by the parts and the order of the parts within the piles, and then splitting the special processes according to the connection relationship between the parts within the piles and the connection relationship between the parts between piles, the rough processes are obtained and further split into fine processes to complete the sorting of special processes, thereby improving the efficiency and accuracy of splitting and sorting special processes. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The present invention is further described in conjunction with the following drawings and embodiments, and all concepts and innovations of the present invention should be regarded as disclosed contents and the protection scope of the present invention.

[0039] Figure 1 This is a flow chart of Example 1 of a method for compiling process specifications by adaptively splitting skeleton process steps in the present invention. DETAILED DESCRIPTION

[0040] Example 1

[0041] See also Figure 1 A method for compiling process specifications by adaptively splitting skeleton process steps. First, based on the digital model information of the skeleton structure assembly, the parts to be assembled are determined and the parts collection is constructed into different piles. The order of the piles and the order of the parts to be assembled in the piles are marked according to the coordinates of the parts in each pile and the coordinates of the parts in the pile.

[0042] Secondly, the digital-analog information is parsed to obtain the digital-analog connection relationship between the parts to be assembled. Based on the digital-analog connection relationship, the intra-pile connection relationship between the parts in the pile and the inter-pile connection relationship between the parts between piles are obtained;

[0043] Then, based on the intra-pile connection relationship and inter-pile connection relationship, a coarse process is generated and the coarse process is split into fine processes according to the set of connector types;

[0044] Then, based on the connector type set, a sorting field set is constructed, and the coarse and fine processes are sorted according to the sorting field set to obtain the skeleton process specification process set;

[0045] Finally, a process parameter library is established based on the skeleton process specification process set; the association between the skeleton assembly elements and the skeleton process specification process set is established, and a skeleton process specification template is constructed; the skeleton process specification is compiled based on the digital model information, the skeleton process specification template and the process parameters corresponding to the skeleton process specification process set.

[0046] By adopting this embodiment, the special process is split by marking the order of the piles formed by the parts and the order of the parts in the piles, and then the connection relationship between the parts in the piles and the connection relationship between the parts between piles, and the rough process is obtained and further split into fine processes to complete the sorting of the special processes, thereby improving the efficiency and accuracy of the splitting and sorting of the special processes.

[0047] Digital model information is the part model information obtained by parsing the MBD digital model, including part coordinates, connection relationships and other information.

[0048] Example 2

[0049] This embodiment is further optimized based on the above-mentioned embodiment 1. In order to better implement the present invention, in this embodiment, further, based on the digital model information of the skeleton structure assembly, the parts to be assembled are determined and the parts collection is constructed to form different piles. The order of the piles and the order of the parts to be assembled in the piles are marked according to the coordinates of the parts in each pile and the coordinates of the parts in the pile, respectively. The method includes:

[0050] Select the parts of the aircraft to be assembled to form a pile of parts d ;

[0051] Analyze MBD digital model parts and part coordinates, and record the parts as , the coordinates are marked as ,in part i For the i parts, poit i For the i The coordinates of the parts;

[0052] The order of marking the kth pile is , ( x,y,z ) is the coordinate value of the part, represents the average coordinate value of the part, is the minimum value among the average values ​​of the coordinates of all parts in the pile;

[0053] Calculate the order of parts to be assembled in the pile based on the part coordinates , dsort i Indicates the first i The order of the parts, Indicates the The average coordinates of the parts.

[0054] To better implement the present invention, further, a method for parsing digital-analog information, obtaining digital-analog connection relationships between parts to be assembled, and obtaining intra-pile connection relationships between parts within a stack and inter-pile connection relationships between parts between stacks based on the digital-analog connection relationships includes:

[0055] Analyze MBD digital models and build part relationship sets ,in, r n is the relationship of the nth part;

[0056] According to the part relationship set, identify the connection relationship within the pile and build the first connection set between the parts in the pile , ra n Indicates the connection relationship of the nth part, including the part and the connector; and marks the first order of the connector in the first connector set as ,in , ras i Indicates the order of the first connector in the first connector set, i.e. i The order of the connectors corresponds to i the order of the parts;

[0057] According to the part relationship set, identify the inter-stack connection relationship and build the second connection set between the inter-stack parts and parts. , rb n Indicates the connection relationship of the nth part, including the part and the connector; and marks the second order of the connectors in the second connector set as ,in, , rbs i Indicates the first i The order of the connectors, i.e. i The order of the connectors is the order of their corresponding stacks.

[0058] To better implement the present invention, a method for generating a coarse process based on the intra-stack connection relationship and the inter-stack connection relationship and splitting the coarse process into fine processes according to the connector type set includes:

[0059] Assemble the first connector In first order Group and obtain the first split group , get the rough process between n parts in the pile, g n is the number of nth rough processes between the parts in the split pile; the first connecting part set ra In first order ras Split into n groups and obtain n rough processes;

[0060] Assemble the second connector According to the second order Group and obtain the second split group , get the rough process between m inter-stack parts, gb m is the number of rough processes between the split inter-stack parts; the second connector set rb According to the second order rbs Split into m groups and obtain m rough processes;

[0061] Construct a set of connector types c, denoted as c = (rivets, screws, nails, bolts, etc.), according to the first split group , second split group and the connector type set c, split the coarse process between n intra-pile parts and the coarse process between m inter-pile parts to obtain de fine processes, where de ≥ m + n.

[0062] By splitting and grouping, we obtain the coarse processes between parts within a stack and between parts between stacks. Then, based on the set of connector types, we group the coarse processes with the same connector type as a fine process, and then split them into fine processes. Coarse processes are identified based on the connection relationships between parts. Fine processes are formed by classifying coarse processes based on the type of connector in the connection relationship and grouping coarse processes with the same connector type. By obtaining coarse and fine processes, we can adapt to the needs of compiling skeleton process specifications for different assembly scenarios.

[0063] In order to better implement the present invention, further, a sorting field set is constructed according to the connector type set, and the coarse processes and fine processes are sorted according to the sorting field set to obtain a skeleton process specification process set. The method includes:

[0064] According to the connector type set c, a sorting field set is constructed, which is recorded as ;

[0065] For a single rough process or detailed process, form a work step (i.e., the assembly sequence of key processes) according to the fields in the sorting field set;

[0066] According to the work steps, rough processes and detailed processes, the skeleton process specification processes are generated and sorted to obtain the skeleton process specification process set.

[0067] This embodiment is adopted, starting from a perspective different from splitting existing processes according to assembly execution time. By constructing the order of skeleton stacks, parts, and connectors, the assembly order of key steps is obtained, making the splitting of skeleton process procedures more accurate.

[0068] Example 3:

[0069] This embodiment is further optimized based on the above embodiment 2. In order to better implement the present invention, in this embodiment, a method for establishing a process parameter library based on a skeleton process procedure set includes:

[0070] Build a component assembly connection process parameter library based on knowledge and rules, establish the association relationship between connection process parameters and process parameter library, and build two parameter acquisition modes: unified push data and active retrieval data.

[0071] In order to better implement the present invention, further, the association relationship between the skeleton assembly elements and the skeleton process specification process set is established, and the method for constructing the skeleton process specification template includes:

[0072] Analyze one by one whether the connectors are component assembly elements, associate the connectors of the component assembly elements with the process procedure set, obtain the connection flow, and then obtain the processes of the starting part and the ending part, and combine them to form a complete skeleton process procedure template.

[0073] In order to better implement the present invention, further, a method for compiling a skeleton process specification based on the digital model information, the skeleton process specification template and the process parameters corresponding to the skeleton process specification process set includes:

[0074] First, based on the digital model information, define the connector process parameter type and establish the logic for acquiring the connector process parameters. Then, according to the required format of the skeleton process specification template, enter the acquired connector process parameters into the corresponding positions of the process parameters and skeleton process specification process attribute information in the skeleton process specification template to complete the skeleton process specification compilation. Process attribute information typically includes basic process information, time attributes, resource attributes, quality attributes, and other information.

[0075] By adopting this implementation method, according to the aircraft component assembly and connection process requirements and process flow, a component assembly and connection process procedure template and a component assembly and connection process parameter library are designed, the key conditions affecting the connection process procedure template process are analyzed, and the connection process parameters are obtained. After obtaining the assembly digital model information, the connection process parameters, certification requirements and other related parameters can be quickly called in to complete the rapid compilation of the aircraft component assembly and connection process procedures, and then the rapid compilation of the skeleton process procedures is achieved. The purpose is to achieve efficient and accurate design of component assembly and connection processes by building a comprehensive knowledge and rule library.

[0076] Optionally, in this embodiment, the method for constructing a component assembly connection process parameter library includes:

[0077] Based on the skeleton process specification process set, data retrieval scheme, data source and logic rules of the process parameters used in the aircraft component assembly process, a multi-dimensional input / output data format of the assembly connection process parameter library is constructed;

[0078] Generate assembly connection process knowledge and assembly connection process rules based on assembly connection process experience and assembly connection process requirements of aircraft parts;

[0079] According to the key fields in the assembly connection process parameter library, the data tables in the assembly connection process parameter library are associated to build the data association relationship between the assembly connection process parameter libraries;

[0080] According to data association, data form, assembly connection process knowledge and assembly connection process rules, a process parameter library including an assembly connection process parameter library and a general assembly connection process parameter library is established;

[0081] A parameter acquisition mode for unified push data is constructed for the assembly connection process parameter library, and a parameter acquisition mode for active retrieval data is constructed for the assembly connection general process parameter library.

[0082] Specifically, based on the skeleton process procedure set, data retrieval scheme, data source and logical rules of the process parameters used in the component assembly process, a multi-dimensional input / output data format of the component assembly connection process parameter library is constructed, CLASS1{IN1; OUT1}, CLASS2{IN1, IN2, ...INn; OUT1}, CLASS3{IN1; OUT1, OUT2, OUT3, ...OUTn}, CLASS4{IN1, IN2, IN3, ...INn; OUT1, OUT2, OUT3, ...OUTn}; among them, CLASS1 supports unified program recognition of initial data; CLASS2 supports logical reasoning of a unique result after multiple conditional input; CLASS3 supports multi-dimensional definition after data input, and outputs results of different dimensions that can be applied in different scenarios; CLASS4 supports logical reasoning of results of different dimensions that can be applied in different scenarios after multiple conditional input.

[0083] Optionally, based on the key fields in the database and data table, the database tables are associated with each other, the data association relationship between the connected databases is formulated, and two parameter acquisition modes of unified push data and active data retrieval are established;

[0084] Active data retrieval mode:

[0085] The process parameters are related to the process specification template and assembly process in which they are located. Different assembly processes have different logical rules for obtaining process parameters. According to the process specification template and its corresponding process, the information of the process parameter library is actively retrieved step by step through the replacement symbol in the template. After logical matching and reasoning between the process parameter libraries, the obtained parameter results are placed in the replacement symbol position of the process parameter.

[0086] Material library {input: standard part drawing number; output: connector sandwich parts, sandwich part material brand, connector quantity, hole area type};

[0087] Standard parts library {input: standard parts drawing number; output: drawing number feature, drawing number diameter feature, strength characteristics};

[0088] Recycling standard type library {input: drawing number feature; output: recycling content};

[0089] Connector aperture library {input: drawing number diameter feature; output: drawing number diameter code};

[0090] Fixed force tool library {input: standard part drawing number, strength characteristics, drawing number diameter code; output: fixed force tool drawing number, fixed force requirements};

[0091] Bonding pallet quality inspection library {input: drawing number diameter feature, drawing number diameter code; output: inspection requirements}.

[0092] Unified data push mode:

[0093] To avoid repeated retrieval of process parameters during process specification compilation, a unified set of parameter libraries and matching logic rules are established. Based on the process specification template and its corresponding process, the process parameter library pushes common process parameter information to the process and puts it into the parameter position corresponding to the process.

[0094] Standard operating procedure library {input: process procedure template name, process name, drawing number characteristics...; output: standard operating procedure number, standard operating procedure name};

[0095] Certification information database {input: process specification template name, process name, drawing number characteristics...; output: certification code};

[0096] Design and inspection type library {input: process specification template name, process name, drawing number characteristics...; output: design and inspection type}.

[0097] According to the structural form of the hole-making process parameter library and the designed input / output function mode, the association relationship between the component assembly hole-making process parameters and the eight hole-making process parameter libraries is established.

[0098] Optionally, in this embodiment, the method for constructing a component assembly connection process specification template includes:

[0099] Define the aircraft component assembly factors that affect the aircraft component assembly connection process;

[0100] Establish the relationship between aircraft component assembly elements and aircraft component assembly connection process flow and construct the aircraft component assembly connection process flow;

[0101] Based on the aircraft parts assembly and connection process flow and standard process library, a process procedure template corresponding to the assembly scenario is established.

[0102] Specifically, define the component assembly factors that affect the component assembly connection process flow, specifically clearly pointing out which factors affect the component assembly connection process flow, including:

[0103] According to the aircraft component assembly design requirements and process requirements, the seven component assembly elements that affect the entire component assembly and connection process are defined: whether the connecting part is a double-line bolt, whether the connecting part is a rivet, whether the connecting part is a bonded tray nut / screw, whether the connecting part is a bolt / screw, whether the connecting part is a fixed-force high-lock, whether the connecting part is a nut-and-cap high-lock, and whether the connecting part is a pull-out nail.

[0104] According to this embodiment, a more complete skeleton process specification template is generated by combining the split skeleton process specification process steps with a more complete process parameter library, so that the compiled skeleton process specification document is more accurate.

[0105] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification or equivalent change made to the above embodiment based on the technical essence of the present invention falls within the scope of protection of the present invention.

Claims

1. A method for compiling process specifications by adaptively splitting skeleton process steps, characterized in that: include: First, based on the digital model information of the skeleton structure assembly, the parts to be assembled are determined and the part sets are constructed into different piles. The order of the piles and the order of the parts to be assembled within the piles are marked according to the coordinates of the parts in each pile and the coordinates of the parts within the pile. Secondly, the digital-analog information is parsed to obtain the digital-analog connection relationship between the parts to be assembled. Based on the digital-analog connection relationship, the intra-pile connection relationship between the parts in the pile and the inter-pile connection relationship between the parts between piles are obtained; Then, based on the intra-pile connection relationship and inter-pile connection relationship, a coarse process is generated and the coarse process is split into fine processes according to the set of connector types; Then, based on the connector type set, a sorting field set is constructed, and the coarse and fine processes are sorted according to the sorting field set to obtain the skeleton process specification process set; Finally, a process parameter library is established based on the skeleton process specification process set; the association between the skeleton assembly elements and the skeleton process specification process set is established, and a skeleton process specification template is constructed; the skeleton process specification is compiled based on the digital model information, the skeleton process specification template and the process parameters corresponding to the skeleton process specification process set.

2. The method for compiling process specifications by adaptively splitting skeleton process steps according to claim 1, characterized in that: The method includes: determining parts to be assembled and constructing part sets to form different piles based on digital model information of skeleton structure assembly; and marking the order of the piles and the order of the parts to be assembled in the piles based on the coordinates of the parts in each pile and the coordinates of the parts in the piles, including: Select the parts of the aircraft to be assembled and form different piles d ; Analyze MBD digital model parts and part coordinates, and record the parts as , the coordinates are marked as ,in part i For the i parts, poit i For the i The coordinates of the parts; The order of marking the kth pile is , ( x,y,z ) is the coordinate value of the part, represents the average value of the coordinates of the parts, is the minimum value among the average values ​​of the coordinates of all parts in the pile; Calculate the order of parts to be assembled in the pile based on the part coordinates , dsort i Indicates the first The order of the parts, For the i The average coordinates of the parts.

3. The method for compiling process specifications by adaptively splitting skeleton process steps according to claim 2, characterized in that: The method of parsing digital-analog information, obtaining digital-analog connection relationships between parts to be assembled, and obtaining intra-pile connection relationships between parts within a pile and inter-pile connection relationships between parts between piles based on the digital-analog connection relationships includes: Analyze MBD digital models and build part relationship sets ; According to the part relationship set, identify the connection relationship within the pile and build the first connection set between the parts in the pile , and, marking the first order of the connectors in the first connector set as ,in , ras i Indicates the first connector set i The order of the connectors; According to the part relationship set, identify the inter-stack connection relationship and build the second connection set between the inter-stack parts and parts. , and, marking the second order of the connectors in the second connector set as ,in, , rbs i Indicates the first The order of the connectors.

4. The method for compiling process specifications by adaptively splitting skeleton process steps according to claim 3, characterized in that: The method of generating a coarse process according to the intra-pile connection relationship and the inter-pile connection relationship and splitting the coarse process into fine processes according to the connection part type set includes: Assemble the first connector In first order Group and obtain the first split group , get the rough process between n parts in the pile, g n is the number of n-th coarse steps between the parts in the split pile; Assemble the second connector According to the second order Group and obtain the second split group , get the rough process between m inter-stack parts, gb m is the number of the mth rough process between the split inter-stack parts; Construct a connector type set c, based on the first split group , second split group and the connector type set c, split the coarse process between n intra-pile parts and the coarse process between m inter-pile parts to obtain de fine processes, where de ≥ m + n.

5. The method for compiling process specifications by adaptively splitting skeleton process steps according to claim 4, characterized in that: According to the connector type set, a sorting field set is constructed, and the rough process and the detailed process are sorted according to the sorting field set. The method for obtaining the skeleton process specification process set includes: Construct a sorting field set based on the connector type set c; For a single rough process or fine process, form a work step according to the fields in the sorting field set; According to the work steps, rough processes and detailed processes, the skeleton process specification processes are generated and sorted to obtain the skeleton process specification process set.

6. The method for compiling process specifications by adaptively splitting skeleton process steps according to claim 1, characterized in that: According to the skeleton process specification process set, the method of establishing the process parameter library includes: Build a component assembly connection process parameter library based on knowledge and rules, establish the association relationship between connection process parameters and process parameter library, and build two parameter acquisition modes: unified push data and active retrieval data.

7. The method for compiling process specifications by adaptively splitting skeleton process steps according to claim 1, characterized in that: The method of establishing the association relationship between the skeleton assembly elements and the skeleton process specification process set, and constructing the skeleton process specification template includes: Analyze one by one whether the connectors are component assembly elements, associate the connectors of the component assembly elements with the process procedure set, obtain the connection flow, and then obtain the processes of the starting part and the ending part, and combine them to form a complete skeleton process procedure template.

8. The method for compiling process specifications by adaptively splitting skeleton process steps according to claim 1, characterized in that: The method for compiling the skeleton process specification based on the digital model information, the skeleton process specification template and the process parameters corresponding to the skeleton process specification process set includes: First, based on the digital model information, define the type of connector process parameters and build the logic for obtaining connector process parameters. Then, according to the required form of the skeleton process specification template, put the obtained connector process parameters into the corresponding positions of the process parameters and the skeleton process specification process attribute information in the skeleton process specification template to complete the compilation of the skeleton process specification.

Citation Information

Patent Citations

  • Quick manufacturing method for inspection jig

    CN101607358A

  • A scheduling method for intelligent manufacturing of electric machines based on logistics simulation

    CN109508956A