BOM-based single-machine standard component material demand response method
Through the single-machine standard parts material demand response method based on process BOM, the MRP operation is used to summarize data in process BOM, and the problems of unreasonable application timing and dispersed documents are solved, and the rapid and accurate demand generation is achieved, reducing the Manpower consumption and production risks.
Patent Information
- Application Number
- CN202411207831.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-30
- Publication Date
- 2024-12-27
AI Technical Summary
In the prior art, the application time for a single-machine standard parts is unreasonable and the quota documents are scattered, resulting in the inability to transmit data in a timely and accurate manner, which puts pressure on procurement, and is inefficient in compilation, which is prone to omission and errors, affecting production.
Through the single-machine standard parts material demand response method based on process BOM, the MRP operation is used to summarize data in the process BOM, and standard parts requirements are generated. Combined with the main production plan, filtering effectiveness and demand time, the single-machine standard parts material requirements are directly generated to avoid manual labor Compilation and file delivery.
It realizes rapid and accurate single-machine standard parts material demand generation, reduces the approval time and document flow of application documents, reduces labor consumption, responds to design changes in a timely manner, and avoids production shutdowns.
Smart Images
Figure CN119204961A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of stand-alone standard parts material requirements of BOM, and in particular to a stand-alone standard parts material requirements response method based on BOM. Background Art
[0002] Aviation standard parts are the basic components of modern aircraft, usually accounting for 60%-90% of the number of aircraft parts. The number of installations is staggering. Therefore, it is crucial for aircraft manufacturing that the process department on the manufacturing side provide the purchasing authority with accurate single-machine standard parts material requirements in a timely manner.
[0003] The quota table of single-machine standard parts is derived from the aircraft EBOM. The standard parts used for batch production are single-machine standard parts. It is a process document used to determine the various standard parts items and usage quantities. It is the main document for the use and management of standard parts and the basic data for production technical preparation work.
[0004] In the prior art,
[0005] The timing of applying for quota for single machine standard parts is unreasonable.
[0006] Applications for single-machine standard parts quotas are mostly prepared by process engineers based on work instruction documents and design changes. The application process is relatively delayed, which puts great pressure on standard parts procurement.
[0007] Standard parts quota files are scattered, and data accuracy cannot be guaranteed
[0008] The number of aircraft operation instruction documents ranges from 1,000, 3,000, or 5,000 to tens of thousands. The number of standard parts quota documents is very large. The application for standard parts quota for a single aircraft is compiled according to the aircraft sections and systems, so it is very scattered. When a large number of design changes are made, it is very difficult for technicians to compile standard parts quota applications in a timely manner, which makes it easy to miss or make mistakes, and also creates great difficulties for the final single-aircraft quota summary work.
[0009] Whether it is a development batch or a small batch, there are design changes in the aircraft. The traditional model of compiling a single-machine standard parts quota table is difficult to respond to the changes in standard parts caused by design changes, and it is impossible to pass the changes to the standard parts procurement department in a timely manner.
[0010] The compilation of the quota table for single-machine standard parts relies on manual data summary, which consumes a lot of manpower and has low efficiency in quota application.
[0011] The standard parts quota documents issued by process engineers are sequential and scattered. The procurement plan manager collects, optimizes and coordinates the demand for standard parts to make the issuance of purchase orders for standard parts reasonable, economical, correct, not duplicated and without omissions. This approach requires multiple people to work in parallel to quickly summarize and organize standard parts quota applications. After the quota requirements of standard parts are sorted out, the main production plan is considered together, which is time-consuming, especially for the aircraft development stage, which creates production constraint risks. A certain process on the production site is likely to be shut down due to lack of standard parts. Therefore, we propose a single-machine standard parts material demand response method based on BOM to achieve efficient and accurate generation of standard parts procurement material requirements. Summary of the invention
[0012] In view of the deficiencies in the prior art, the present invention provides a single-machine standard part material demand response method based on process BOM, which solves the problem that traditional process engineers prepare a large number of standard part demand application documents, standard parts procurement management personnel summarize a large number of standard parts material application forms, and standard parts quota documents issued by process engineers are sequential and scattered, requiring multiple people to work in parallel to quickly summarize and organize standard parts quota applications. After the quota demand for standard parts is organized, the main production plan is considered together, which is time-consuming and restricts the purchase order from being issued in time. A certain process at the production site is likely to be shut down due to lack of standard parts.
[0013] To achieve the above objectives, the present invention is implemented through the following technical solutions: A single machine standard parts material demand response method based on BOM, comprising the following steps:
[0014] Step 1: Process BOM is the source of data summary of single machine standard parts.
[0015] According to the project division of labor principle, the overall process plan, etc., the framework of the process BOM is built. The framework form of the process BOM is not unique. If it is a typical main supply mode, you can choose a framework form divided by work packages as module units; if the main manufacturer has strong manufacturing capabilities and wants to reflect the layout of the production unit from the process BOM, you can consider building the process BOM with the idea of station, manufacturing unit or a combination of the two. Regardless of the framework form, according to the main production plan, add the required time for the flight at the main framework layer such as work packages, or stations, or manufacturing units.
[0016] After the process BOM structure framework is built, the process BOM is completely built on the basis of EBOM, and all materials in EBOM are dragged to each frame unit of the process BOM. At the same time, all components and standard parts are dragged to the process BOM to add process attributes, such as adding process route division. In order to facilitate the effective implementation of production organization, cost control and quality control, process components are built on demand. The process department should clarify the manufacturing process requirements as much as possible while working in parallel with the product design department, and represent the manufacturing information in the product design data to reduce the number of process components.
[0017] Step 2: Generate the demand for single machine standard parts through MRP operation.
[0018] In the process BOM, traverse the process route to find the main manufacturer or the main manufacturer-supplier, the part type is standard parts, and trace the single-unit quantity of the parent level of the standard parts. Multiply the single-unit quantity of the standard parts by the single-unit quantity of the parent level, and continue tracing and multiplying it until the single-unit quantity of the parent level is the design unit. This will get the single-unit quantity of the standard parts. Then, trace the flight demand time of the framework layer and filter the flight validity to generate the single-unit standard parts material demand. The single-unit demand refers to the standard parts summary from the aircraft EBOM and batch production.
[0019] Step 3: When the process BOM is changed, the temporary demand for single machine standard parts is generated through MRP calculation;
[0020] When the process BOM is changed due to EBOM change or process route change, if it involves changes in the quantity and specifications of standard parts, MRP calculation is used to filter the aircraft sortie validity, component attributes, process route, quantity, and sortie requirement time to generate temporary demand for single-machine standard parts.
[0021] Preferably, the process BOM described in step 1 is a direct source of summary data of single machine standard parts, rather than an instructive document.
[0022] Preferably, the process BOM described in step 1 expands the properties of the traditional process BOM. According to the master production plan, the batch demand time is added to the main framework layer such as the process BOM work package, or the station, or the manufacturing unit, and the production plan is made explicit in the process BOM to establish the most direct connection between the single machine standard parts demand and the procurement plan. Instead of establishing a master plan management module, the process BOM is separated and the master plan management module is coupled with information, which is a traditional management mode.
[0023] Flight demand time = start time – lead time
[0024] Among them: the time advance is set according to the business capability requirements of the enterprise, generally including the sum of the time for factory acceptance, warehousing, and production line standard parts configuration.
[0025] Preferably, the MRP operation logic of step 2 is based on process BOM data, and generates the single-machine demand quantity of each standard part by filtering the aircraft sortie validity, component attributes, process route, quantity, and sortie requirement time.
[0026] Preferably, in the step 2, the process BOM containing the quantity and specifications of standard parts caused by the engineering change is changed, and the MRP operation logic is based on the process BOM data, by filtering the aircraft sortie validity, component attributes, process route, quantity, sortie requirement time, to generate the single-machine demand quantity of various standard parts and generate temporary demand for single-machine standard parts.
[0027] Preferably, in step 2 and step 3, it is not necessary for the technician to compile a single-machine standard parts demand application document or a supplementary application document, and the material requirements / temporary requirements for various single-machine standard parts are generated through MRP calculation.
[0028] Preferably, in step 2 and step 3, there is no need for the standard parts purchasing administrator to summarize the standard parts demand applications and supplementary application documents, and the material requirements for each single-machine standard part are directly generated through MRP calculations.
[0029] Preferably, the step three responds extremely quickly to changes in the demand for standard parts materials due to engineering changes or process route changes.
[0030] The present invention discloses a single machine standard parts material demand response method based on BOM, which has the following beneficial effects:
[0031] 1. This BOM-based stand-alone standard parts material demand response method, according to (EBOM+Master Production Plan) -> Process BOM, automatically generates standard parts material demand through material MRP calculation by filtering process BOM batch validity, component attributes, process route, quantity, batch demand time. It does not require process personnel to waste time and effort in compiling stand-alone standard parts demand application documents, and also reduces the approval time of stand-alone standard parts demand application documents and the time it takes for documents to be transferred to buyers.
[0032] 2. Through the direct combination of the master production plan and the process BOM, the business attributes of the process BOM are converted and made explicit in the process BOM, thus establishing the most direct connection between the demand for single machine standard parts and the production plan. This is instead of the traditional management mode of establishing a master plan management module and allowing the process BOM to be informationally coupled with the master plan management module.
[0033] 3. The BOM-based single-machine standard parts material demand response method generates the single-machine demand for various standard parts by filtering the process BOM aircraft sortie validity, component attributes, process route, quantity, and sortie demand time, avoiding the problem of single-machine standard parts quota application being compiled according to aircraft sections and systems, scattered single-machine standard parts application documents, and high labor consumption and low quota application efficiency. It also solves the problem that it is difficult for process engineers to compile standard parts quota applications in a timely and accurate manner, and it is easy to miss mistakes, and the single-machine quota summary work is difficult.
[0034] 3. This BOM-based stand-alone standard parts material demand response method solves the problem that when making design changes, the traditional mode of compiling a single-machine standard parts quota table is difficult to respond to the changes in standard parts caused by design changes, and the change amount cannot be transmitted to the standard parts procurement management department in a timely manner through MRP operation logic.
[0035] 4. The BOM-based stand-alone standard parts material demand response method directly calculates the stand-alone standard parts material demand through MRP calculation. The standard parts procurement management department does not need to summarize the single-machine standard parts application requirements, which solves the problem of the standard parts procurement management department summarizing and arranging standard parts quota applications, which is time-consuming and laborious. BRIEF DESCRIPTION OF THE DRAWINGS
[0036] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0037] Figure 1 This is a business flow chart of the material requirements of a single machine standard part of the present invention;
[0038] Figure 2 This is a traditional single-machine standard parts material demand business flow chart of the present invention;
[0039] Figure 3 This is an example of a process BOM structure tree;
[0040] Figure 4 An example is shown for generating material requirements for single-machine standard parts. DETAILED DESCRIPTION
[0041] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0042] The embodiment of the present application provides a single machine standard parts material demand response method based on BOM. The single machine standard parts material demand response method based on BOM generates single machine standard parts material demand through MRP operation, thereby solving the problems of lagging single machine standard parts quota application node, scattered standard parts quota files, and inability to ensure data accuracy. A large number of design changes make it difficult for professional technicians to prepare standard parts quota application files in a timely and accurate manner, and it is impossible to transmit the standard parts change amount to the standard parts procurement department in a timely manner. The quota application efficiency is low, and it is time-consuming and laborious for the procurement plan manager to summarize the application of standard parts, and manual sorting cannot be correct, non-duplicate, and non-missing. Reconstruct the process BOM containing process information and master production plan information according to EBOM.
[0043] According to the master production plan, the demand for single-machine standard parts is generated through MRP calculation. According to the process BOM, the aircraft sortie validity, component attributes, process route, quantity, and sortie demand time are filtered to generate the demand for single-machine standard parts through MRP calculation;
[0044] When a process BOM change order occurs, if it involves changes in the quantity and specifications of standard parts, a temporary demand for single machine standard parts is generated through MRP calculation;
[0045] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.
[0046] The embodiment of the present invention discloses a single machine standard parts material demand response method based on BOM.
[0047] According to the attached Figure 1 -4, characterized in that it includes the following steps:
[0048] Step 1: Process BOM is the data source for the summary of single machine standard parts;
[0049] According to the project division of labor principle, the overall process plan, etc., the framework of the process BOM is built. The framework form of the process BOM is not unique. If it is a typical main supply mode, you can choose a framework form divided by work packages as module units; if the main manufacturer has strong manufacturing capabilities and wants to reflect the layout of the production unit from the process BOM, you can consider building the process BOM with the idea of station, manufacturing unit or a combination of the two. Regardless of the framework form, according to the main production plan, add the required time for the flight at the main framework layer such as work packages, or stations, or manufacturing units.
[0050] After the process BOM structure framework is built, the process BOM is completely built on the basis of EBOM, and all materials in EBOM are dragged to each frame unit of the process BOM. At the same time, all components and standard parts are dragged to the process BOM to add process attributes, such as adding process route division. In order to facilitate the effective implementation of production organization, cost control and quality control, process components are built on demand. The process department should clarify the manufacturing process requirements as much as possible while working in parallel with the product design department, and represent the manufacturing information in the product design data to reduce the number of process components.
[0051] Step 2: Generate the demand for single machine standard parts through MRP operation;
[0052] In the process BOM, traverse the process route to find the main manufacturer or the main manufacturer-supplier, the part type is standard parts, and trace the single-unit quantity of the parent level of the standard parts. Multiply the single-unit quantity of the standard parts by the single-unit quantity of the parent level, and continue tracing and multiplying it until the single-unit quantity of the parent level is the design unit. This will get the single-unit quantity of the standard parts. Then, trace the flight demand time of the framework layer and filter the flight validity to generate the single-unit standard parts material demand. The single-unit demand refers to the standard parts summary from the aircraft EBOM and batch production.
[0053] Step 3: Generate temporary demand for single machine standard parts through MRP calculation;
[0054] When the process BOM is changed due to EBOM change or process route change, if it involves changes in the quantity and specifications of standard parts, MRP calculation is used to filter the aircraft sortie validity, component attributes, process route, quantity, and sortie requirement time to generate temporary demand for single-machine standard parts.
[0055] Step 1: The process BOM is the source of summary data for standard parts of a single machine, rather than an instructive document. This avoids the unreasonable timing of application for quotas for standard parts of a single machine. Applications for quotas for standard parts of a single machine are mostly prepared by process engineers based on work instruction documents and design changes. The application node is relatively delayed, which brings great pressure to the procurement of standard parts.
[0056] Step 2: The MRP operation logic is based on the process BOM data, and generates the unit demand of each standard part by filtering the aircraft sortie validity, component attributes, process route, and unit quantity, so as to solve the problem that the standard part quota files are scattered and the data accuracy cannot be guaranteed.
[0057] The problem of a large number of aircraft operation instruction documents, ranging from 1,000, 3,000, or 5,000 to tens of thousands, and the problem of a large number of standard parts quota documents, is solved.
[0058] In step 2, due to engineering changes and process route changes, the process BOM containing the quantity and specifications of standard parts is changed. The MRP operation logic is to generate temporary demand for single-machine standard parts based on the process BOM data by filtering the aircraft sortie validity, component attributes, process route, and single-machine quantity.
[0059] The unit demand of each standard part is generated uniformly by filtering the aircraft sortie validity, component attributes, process route, and unit quantity, so as to avoid the problem that the application of the unit standard part quota is very scattered because it is compiled according to the aircraft section and system.
[0060] In step two, there is no need for process engineers to compile and issue quotas for standard parts for individual machines. Instead, the material requirements for standard parts for individual machines are generated through MRP calculations. This solves the problem that a large number of design changes make it difficult for process engineers to compile standard parts quota applications in a timely manner, which is prone to omissions and errors. In addition, the compilation of the quota table for individual machine standard parts relies on manual data summary, which consumes a lot of manpower and has low efficiency in quota application.
[0061] In step 3, due to the changes in the process BOM containing the quantity and specifications of standard parts caused by the engineering changes, there is no need to compile a supplementary file of the standard parts quota for each single machine. The temporary demand for materials of each single machine standard part can be generated through MRP calculation.
[0062] In step 3, we can quickly respond to changes in the engineering requirements for standard parts and materials.
[0063] It solves the problem that when making design changes, the traditional mode of compiling a single-machine standard parts quota table is difficult to respond to the changes in standard parts caused by the design changes, and it is impossible to transmit the changes to the standard parts procurement department in a timely manner.
[0064] Working principle: Reconstruct the process BOM containing process information and production plan according to EBOM and master production plan. Build the framework of process BOM according to the principle of project division of labor, overall process plan, etc. The framework form of process BOM is not unique. If it is a typical main supply mode, you can choose a framework form divided by work packages as module units; if the main manufacturer has strong manufacturing capabilities and wants to reflect the layout of production units from the process BOM, you can consider building the process BOM with the idea of station, manufacturing unit or a combination of the two. Regardless of the framework form, according to the master production plan, increase the time required for the flight in the main framework layer such as work packages, stations, or manufacturing units.
[0065] After the process BOM structure framework is built, the process BOM is completely built in a consumable manner based on the EBOM. All materials in the EBOM are dragged to each frame unit of the process BOM. At the same time, all components and standard parts of the process BOM are dragged to add process attributes, such as adding process route division of labor.
[0066] Generate the demand for stand-alone standard parts through MRP calculation. In the process BOM, traverse the process route to find the main manufacturer or the main manufacturer-supplier, the part type is standard parts, and trace the single-unit quantity of the parent of the standard part. Multiply the single-unit quantity of the standard part by the single-unit quantity of the parent, and trace and multiply until the parent is the single-unit quantity of the design unit. The single-unit quantity of the standard part is obtained, and then the order demand time of the framework layer is traced back, and the order validity is filtered to generate the material demand for stand-alone standard parts. The single-unit demand refers to the standard parts summary from the aircraft EBOM and batch production.
[0067] When the process BOM is changed due to EBOM change or process route change, if it involves changes in the quantity and specifications of standard parts, temporary demand for single-machine standard parts is generated through MRP calculation.
[0068] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.
Claims
1. A single machine standard parts material demand response method based on BOM, characterized in that: The following steps are involved: Step 1: BOM is the data source for the summary of single machine standard parts; According to the project division principle, the overall process plan, etc., build the framework of the process BOM. The framework form of the process BOM is not unique. If it is a typical main supply mode, you can choose a framework form divided by work packages as module units; If the main manufacturer has strong manufacturing capabilities and wants to reflect the layout of the production unit from the process BOM, you can consider building the process BOM with the idea of station, manufacturing unit or a combination of the two. Regardless of the framework form, according to the main production plan, add the required time of the batch at the main framework level such as work package, station, or manufacturing unit. After the process BOM structure framework is built, the process BOM is completely built on the basis of EBOM, and all materials in EBOM are dragged to each frame unit of the process BOM. At the same time, all components and standard parts are dragged to the process BOM to add process attributes, such as adding process route division. In order to facilitate the effective implementation of production organization, cost control and quality control, process components are built on demand. The process department should clarify the manufacturing process requirements as much as possible while working in parallel with the product design department, and represent the manufacturing information in the product design data to reduce the number of process components. The process BOM implements EBOM changes and maintains the consistency of process BOM and EBOM data. Step 2: Generate the demand for single machine standard parts through MRP operation; In the process BOM, traverse the process route for the main manufacturer or the main manufacturer-supplier, the part type is standard parts, and the single-unit quantity of the standard part parent is traced. The single-installation quantity of the standard part is multiplied by the single-unit quantity of the parent, and the number of single units at the level where the parent is the design unit is traced back and multiplied. The single-unit quantity of the standard part is obtained, and then the batch demand time of the framework layer is traced back, and the batch validity is filtered to generate the single-unit standard part material demand. The single-unit demand refers to the summary of standard parts from the aircraft EBOM and batch production. Step 3: When the process BOM is changed, the temporary demand for single machine standard parts is generated through MRP calculation; When the process BOM changes due to EBOM changes or process route changes, if it involves changes in the quantity and specifications of standard parts, temporary demand for single-machine standard parts is generated through MRP calculations.
2. According to the BOM-based stand-alone standard parts material demand response method of claim 1, it is characterized in that: The process BOM described in step 1 is a direct data source for summarizing standard parts of a single machine, rather than a prescriptive document.
3. According to the BOM-based stand-alone standard parts material demand response method of claim 1, it is characterized in that: The process BOM described in step 1 expands the properties of the traditional process BOM. According to the master production plan, the required time of the batch is added to the main framework layer such as the process BOM work package, or the station, or the manufacturing unit, and the production plan is made explicit in the process BOM, so as to establish the most direct connection between the demand for single machine standard parts and the production plan. Instead of establishing a master plan management module, the traditional management mode of allowing the process BOM to be separated and coupled with the master plan management module for information. Flight demand time = start time – lead time Among them: the time advance is set according to the business capability requirements of the enterprise, generally including the sum of the time for factory acceptance, warehousing, and production line standard parts configuration. According to the BOM-based single-machine standard parts material demand response method of claim 1, it is characterized in that the MRP operation logic of the step 2 is directly based on the process BOM data, by filtering the aircraft sortie validity, component attributes, process route, quantity, sortie requirement time, to generate the single-machine material demand of each standard part.
4. According to the BOM-based stand-alone standard parts material demand response method of claim 3, it is characterized in that: In the step 2, due to the change of engineering or process route, the process BOM containing the quantity and specifications of standard parts is changed. The MRP operation logic is to generate the single-machine demand quantity of various standard parts based on the process BOM data by filtering the aircraft sortie validity, component attributes, process route, single-machine quantity, and start time, and generate temporary demand for single-machine standard parts.
5. The method for responding to material requirements of single machine standard parts based on BOM according to claim 1, characterized in that: The MRP operation logic of the step 2 is to generate a summary of the demand for single-machine standard parts based on the process BOM data by filtering the aircraft sortie validity, component attributes, process route, quantity, and sortie requirement time. This single-machine standard parts summary data does not need to be published in the form of a file. A single-machine standard parts summary data table distinguished by the platform generation time can be generated at any time according to demand, such as 2024-06-18 16:
23. It can be exported from the platform at any time as needed, reducing the document compilation and issuance work link for single-machine standard parts requirement application.
6. The BOM-based stand-alone standard parts material demand response method according to claim 1, characterized in that: In the steps 2 and 3, there is no need for the purchasing administrator to summarize the standard parts demand applications, and the material requirements for each single machine standard part can be directly generated through MRP calculation.
7. The BOM-based stand-alone standard parts material demand response method according to claim 1, characterized in that: The changes to the process BOM containing the quantity and specification of standard parts generated by engineering changes in step three do not require the compilation of a single-machine standard parts quota supplementary document (for example: machine standard parts quota change order), and temporary material requirements for various single-machine standard parts are generated through MRP calculations.
8. The BOM-based stand-alone standard parts material demand response method according to claim 1, characterized in that: The step three is to quickly respond to changes in the engineering requirements for standard parts.