Guizhou Aerospace Electric Co., Ltd. is a subsidiary of China Aerospace Science and Industry Corporation. It is one of the backbone enterprise of aerospace components integrating relay, electrical connector and scientific research, development and production. It has a history of 40 years of construction and development.
The company mainly develops and produces sealed electromagnetic relays, temperature relays, special relays, general-purpose relays and general rectangular, circular electrical connectors, special separation connectors and RF connectors, and has components mainly composed of relays and connectors. , the development and production capacity of electronic measurement and control equipment. Products are widely used in aerospace, aviation, shipbuilding, electronics, information industry, household appliances and other industries.
Information implementation background
Prior to the PDM/CAPP information system, Guizhou Aerospace Electric Co., Ltd. mainly used AutoCAD R14/2000/2002 to design parts. The process department mainly used AuloCAD R14/2000 for process preparation and tooling drawing work mainly in 412. 419 Two factories, about three kilometers apart.
The production mode of aerospace electrical appliances is multi-variety and small-batch, which is mainly based on order production. Generally, the user directly purchases in the product catalog provided by the enterprise. The product model of the enterprise is used as the order identification number of the enterprise user and is designed with a small amount of deformation according to the individual requirements. Therefore, the research and development of product development and product deformation are very large. Some of the products are designed according to the order, the delivery period is generally shorter, the design cycle is short, and the work pressure is relatively large. Moreover, the company's products determine that the company will produce a large number of serialized drawings, and a large number of product variations that are multiplied cause the management of current product data and drawings to be relatively confusing.
At that time, Aerospace Electric Co., Ltd. mainly developed and developed the "xxxxx round connector" in the General Equipment Department. The newly designed product changes in this project are complex, and an average product family can be derived into 3,200 products, which is difficult to manage. It is hoped that PDM can effectively manage the changes of products, provide effective data for production, reduce the workload of the design department, realize comprehensive management of the product development process, and establish image management, product configuration management, and workflow. Management, project management and other functional modules.
Heavy problems need to be solved
In view of the current situation of aerospace electrical appliances, we believe that the PDM/CAPP system mainly needs to solve the following problems: First, how to easily complete the product serialization expansion process? In the process of expansion, it is necessary to record the correspondence between the characteristics of the product (order number) and the selection of subordinate components.
The engineering design task of aerospace electrical equipment has reworked product development and design work for large-scale products. The design of the product has the stage problem of the military enterprise. The product design is divided into two modes: one is to design a single product first, and gradually expand into a component family, and the other is to design a family product at one time, and then according to the order. A small amount of expansion.
The designed product variants are all released through the sample, and then the customer purchases according to the sample. The company guides the production for the order, and the order features multi-standard mass production.
Due to the complexity of the product selection, the number of changes in the general product assembly and the following sub-components is a multiplier relationship. For example, there are three sub-components, and the serialization expansion is 2, 3, and 4, respectively. It is 2x3x4=24.
Second, the management relationship between series of components is complex and the query is inconvenient.
Aerospace's products are divided into two types of relays, connectors and electrical components. Relays and connectors are divided into six categories, and each category includes multiple product families. The product line includes multiple product families, and the product family includes multiple accurate products.
The number of parts of aerospace electrical products is small, but the product line is very complicated. The degree of serialization between products is very high, and the products in the same series are basically similar. And the product variety specifications are very large, due to the user's individual needs also produced a large number of derivative models or specifications, the total number of parts and components is huge.
Third, on the basis of product serialization, the process management of process data is realized.
The process of aerospace electrical appliances was compiled by AutoCAD before the PDM/CAPP system, and the assembly process was a family of processes completed by the product family. The standardization of process preparation is poor, and the relationship between components is manually maintained, and the query is inconvenient.
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