Batch assembly production line design method based on standard data packet

Abstract

The invention relates to a batch assembly production line design method based on a standard data packet, and solves the problems that an existing method is low in assembly quality and efficiency, high in assembly error rate and long in assembly period. Firstly, the structure of an assembled product is analyzed, and an assembly process scheme is determined; detailed assembly process design is completed according to the assembly process scheme, and a product manufacturing data packet is formed after assembly process simulation; converting the product manufacturing data packet into a production data packet to form a station unit recombination scheme, a logistics recombination scheme, an information interconnection scheme and a scheduling scheme, completing production line hardware arrangement and adjustment, joint debugging and joint test according to the above schemes, and performing production line efficiency evaluation after trial production; after the evaluation is completed, entering a production line official commissioning stage; and after product production is completed, product delivery and after-sale are carried out, and product after-sale information is collected. According to the method, the design process of the assembly line can be rapidly and reliably completed, and beneficial reference is provided for intelligent design work of the assembly line.

Description

Technical Field

[0001] The invention relates to a production line design method, in particular to a batch assembly production line design method based on a standard data packet. Background Art

[0002] The assembly quantity of electromechanical products such as aviation, aerospace, and vehicles has reached a certain scale. In order to ensure the assembly production delivery cycle and stable assembly quality, it is necessary to build assembly production lines. As the final link in the manufacturing of electromechanical products, assembly has a direct impact on quality and cost. Assembly technology involves assembly process design, assembly process simulation, assembly tooling design, assembly process control, and quality status control. The assembly accuracy and quality requirements are strict, and high requirements are placed on assembly process control. Therefore, how to improve assembly quality and efficiency, reduce assembly error rate, and shorten assembly cycle has become a bottleneck problem that urgently needs to be solved in assembly. With the continuous advancement of modern industrial technology, assembly production line planning and design technology has become a new direction for the development of assembly technology.

[0003] In the 1950s, the demand for the development of economies of scale, such as automobiles and tractors, required large-scale production, and processing production lines composed of special machine tools appeared. For example, the production lines of cylinder blocks, connecting rods, crankshafts, etc. composed of modular machine tools belong to this category. This production line is specially designed for a certain part and is manufactured according to a certain production program. It is equipped with a special automated logistics system and uses multi-tool and multi-station processing. It has high production efficiency and good processing quality. It has the advantages of high efficiency and low cost, and has played a great role in promoting the development of the automobile industry. However, this production line has a single function and can only be suitable for mass production of a single product. When the variety and batch of parts change with the market, it is difficult for this production line to adapt to the new changes through adjustments to its own structure or function. It is called a rigid production line.

[0004] The rigid production system has indeed promoted the rapid development of economies of scale, but with the development of the economy, the market has shifted to the demand for small batches of multiple varieties. In the 1970s and 1980s, a processing system with centralized processes consisting of flexible manufacturing systems and machining centers appeared. This processing system has great processing flexibility and is called a flexible production line. Summary of the invention

[0005] The present invention provides a batch assembly production line design method based on a standard data packet to solve the problems of low assembly quality and efficiency, high assembly error rate and long assembly cycle in the current method.

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

[0007] A method for designing a batch assembly production line based on a standard data package comprises the following steps:

[0008] First, the structure of the assembled product is analyzed to determine the assembly process plan; the detailed assembly process design (assembly process, assembly method, locking torque, quality inspection indicators, etc.) is completed based on the assembly process plan, and the product manufacturing data package is formed after the assembly process simulation; the product manufacturing data package is transformed into a production line through the overall design and reorganization design of the production line based on the expert knowledge base, and the production line logistics process design, workstation unit design, inspection plan design, information interconnection design, etc. are completed respectively to obtain the production line logistics program package, production line manufacturing program package, production line inspection program package, information interconnection program package, etc.; the above complete manufacturing program package is converted into a production data package to form a workstation unit reorganization plan, logistics reorganization plan, information interconnection plan, scheduling plan, etc., and the production line hardware layout and adjustment, joint debugging and testing, and trial production are completed according to the above plan, and the production line efficiency is evaluated; after the evaluation is completed, the production line enters the formal production stage; after the product production is completed, the product is delivered and after-sales are carried out, and the product after-sales information is collected.

[0009] The present invention can quickly and reliably complete the design process of an assembly production line, and provides a useful reference for the intelligent design of an assembly production line. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a flow chart of the method of the present invention. DETAILED DESCRIPTION

[0011] The process of the present invention is as follows Figure 1 As shown, the main links are:

[0012] 1. Product demand analysis stage: With missile design model, overall process plan, etc. as input, intelligent analysis of overall test requirements is carried out, including product manufacturing process analysis, process optimization suggestions for design models, etc.;

[0013] 2. Process design stage: In this stage, the final assembly process plan is prepared, the structured process flow is prepared based on the knowledge base, and the digital virtual process simulation verification is carried out. After the verification, the product process data package is generated and automatically converted into the product manufacturing data package (material data package, manufacturing data package, quality inspection data package, etc.) by the system;

[0014] 3. Production line design stage: With the product manufacturing data package generated in the process design stage as input, the production line is digitally designed or reorganized based on the expert database knowledge (solved by intelligent algorithms). The next step is to conduct detailed design in four branches: logistics process design, workstation unit design, inspection scheme design, and information interconnection scheme design. After virtual simulation verification, the manufacturing program package (automation program running on automation equipment and communication equipment on the production line) is generated.

[0015] 4. Production line implementation stage: The manufacturing program package is used as input and converted into a production data package (station unit reorganization plan, logistics reorganization plan, information interconnection plan, and scheduling plan) to guide the production line implementation personnel to reorganize and arrange the production line hardware. The production line enters the trial production stage after the software and hardware joint debugging and testing. After the above debugging process is passed, the production line evaluation is formally carried out;

[0016] 5. Production line production stage: After the production line passes the evaluation, it is officially put into operation;

[0017] 6. Product delivery stage: After the product is completed on the final assembly line, the physical product and electronic resume are delivered to the user;

[0018] 7. After-sales service stage: Based on full life cycle management, data tracking of delivered products is carried out, product data is continuously accumulated, and the database is enriched.

Claims

1. A method for designing a batch assembly production line based on a standard data package, characterized in that: First, analyze the structure of the product to be assembled and determine the assembly process plan; Complete detailed assembly process design with assembly process plan, and form product manufacturing data package through assembly process simulation; The product manufacturing data package is transformed into a production data package through the overall design and reorganization design of the production line based on the expert knowledge base, and the production line logistics process design, work station unit design, inspection plan design, and information interconnection design are completed respectively, so as to obtain the production line logistics program package, production line manufacturing program package, production line inspection program package, and information interconnection program package; the above complete manufacturing program package is converted into a production data package to form a work station unit reorganization plan, a logistics reorganization plan, an information interconnection plan, and a scheduling plan. According to the above plans, the production line hardware layout and adjustment, joint debugging and testing, and trial production are completed, and then the production line efficiency is evaluated; after the evaluation is completed, the production line enters the formal production stage; after the product production is completed, the product is delivered and after-sales service is carried out, and the product after-sales information is collected.

2. The method for designing a batch assembly production line based on a standard data package according to claim 1, characterized in that: The assembly process design includes assembly process, assembly method, locking torque, and quality inspection indicators.

3. The method for designing a batch assembly production line based on a standard data package according to claim 1, characterized in that: The specific steps are: 1) Product demand analysis stage: With the design model and overall process plan as input, intelligent analysis of the final assembly test requirements is carried out, including product manufacturing process analysis and process optimization suggestions for the design model; 2) Process design stage: prepare the final assembly process plan, compile the structured process flow based on the knowledge base, and conduct digital virtual process simulation verification. After verification, the product process data package is generated and automatically converted into the product manufacturing data package through the system; 3) Production line design stage: With the product manufacturing data package generated in the process design stage as input, the production line is digitally designed or reorganized based on the expert database knowledge. The next step is to conduct detailed design in four branches: logistics process design, workstation unit design, inspection scheme design, and information interconnection scheme design. After virtual simulation verification, the manufacturing program package is generated; 4) Production line implementation stage: The manufacturing program package is used as input and converted into a production data package to guide the production line implementation personnel to reorganize and arrange the production line hardware. The production line enters the trial production stage after the software and hardware joint debugging and testing. After the above debugging process is passed, the production line evaluation is formally carried out; 5) Production line production stage: After the production line passes the evaluation, it is officially put into operation; 6) Product delivery stage: After the product is completed on the final assembly line, the physical product and electronic resume are delivered to the user; 7) After-sales service stage: Based on full life cycle management, data tracking of delivered products is carried out, product data is continuously accumulated, and the database is enriched.

4. The method for designing a batch assembly production line based on a standard data package according to claim 3 is characterized in that: In step 2), the product manufacturing data package includes a material data package, a manufacturing data package, and a quality inspection data package.

5. The method for designing a batch assembly production line based on a standard data package according to claim 3 is characterized in that: In step 3), the program for manufacturing the program package is an automation program running on automation equipment and communication equipment on the production line.

6. The method for designing a batch assembly production line based on a standard data package according to claim 3 is characterized in that: In step 3), intelligent algorithms are used to solve the digital design or reorganization design of the production line based on the knowledge in the expert database.

7. The method for designing a batch assembly production line based on a standard data package according to claim 3 is characterized in that: In step 4), the production data package includes a workstation unit reorganization plan, a logistics reorganization plan, an information interconnection plan and a scheduling plan.

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