This paper combines the information development of NX important user Jinan Casting and Forging Research Institute, and analyzes the real problems in traditional CAD applications, and introduces the effective management of SolidWorks and other CAD product data by Dongpu Software PLDM system.

First, the drawbacks of traditional CAD application and management

As a global mainstream CAD tool, SolidWorks has been widely promoted in various fields. Obviously, the application of CAD system will enable enterprises to have great technological progress and good benefits. But the introduction of CAD alone, only as a drawing tool, is not economical, and even brings negative effects. Because CAD is a discrete system. Due to the differences in file formats and application environments that are supported, it is difficult to exchange information, resulting in a reduction in information sharing. The large-scale relational database currently used is not easy to integrate and support the CAD/CAM process, and it is impossible to realize various types of information integration based on CAD/CAPP/CAM.

Based on these factors, the company has produced a large number of electronic drawings in the CAD application process. The original manual drawing data management system is far from being able to adapt to the innovation brought by CAD technology. The old management mode has hindered the development of the enterprise. For example, the following questions:

(1), a large number of graphic files have been accumulated for a long time, and the drawing management is performed by hand only, and the work is very cumbersome.

(2) The electronic version of the drawings is stored in a scattered manner and is kept in the hands of technicians. It is difficult to find and browse technical data.

(3) The revised version of the drawings can only be managed manually, and the same errors are repeated.

1. After many revisions, multiple versions appear, and the version management is confusing;

2. Multiple version drawings bring great inconvenience to the maintenance of product data in the future;

3. Electronic drawings and paper drawings cannot be consistent;

(4) CAD files and design documents cannot be searched and viewed in real time according to technical index attributes.

1. Product design data cannot be shared, and product drawings with similarity cannot be quickly queried;

2. Each time you browse, you must start the CAD system or OFFICE software;

(5), no strict design process management, resulting in modified drawings, no records, slow progress, lack of synergy.

(6), change management disorder and disorder, computer image file changes without trace, electronic information can not be version control, version storage. It is difficult to change single query and statistics.

(7) Product information such as product design drawings, process documents, technical documents, product experimental data, etc. describing the product cannot be easily obtained.

(8) The reuse rate of design resources is low. Due to the lack of effective management of existing mature products and design resources, the utilization rate of the original design resources is too low, and the repetitive workload is large.

One of the better ways to solve these problems fundamentally is to use the PDM system, that is, to realize the unified platform for informationization through PDM. PDM is the technology most closely related to the production of enterprises. It involves all aspects of production technology work, and is also a main component of enterprise information engineering, which has become a breakthrough for enterprises to implement information engineering.

Second, Nanjing Dongpu Software Technology Co., Ltd. PLDM system

2.1 Dongpu PLDM system is compatible with CAD data

Dongpu Software Technology Co., Ltd. made targeted integrated development of SolidWorks in enterprise applications:

(1) Automatic extraction of structure trees and BOM attributes

(2) Intelligent package uploading, downloading documents, and lightweight file transfer;

(3) It is possible to assemble parts in any project on the network, automatically generate borrowing relationships and update them in time.

(4) Support standard library such as ToolBox

(5) Read data relationships, batch import files, structure trees, and attributes

(6) Quick setting of document properties

(7) Serial number labeling in accordance with enterprise standards

(8) BOM automatic summary

(9) Jigsaw printing

Figure 1 PLDM application mode

Based on the tight integration of SolidWorks products, Dongpu Software Technology Co., Ltd. PLDM system achieves integration effects on other domestic mainstream CAD and its different versions.

2.2 Dongpu PLDM system is fully functional

The Dongpu Software PLDM system includes 8 major functions: project management, document management, print management, version control, process management, rights management, mail management, and BOM management. It provides a large amount of data tracking and storage functions for product design, manufacturing and technical support, and manages the entire development cycle of the product. It is the bridge and link between CAD/CAM/CAPP system, MIS system and MRPII/ERP system. The ultimate goal of PLDM is to achieve enterprise functional integration, process integration and integration of people and organizations.

Figure 2 Dongpu PLDM is rich in functions

2.3 Simple implementation

Whether for software vendors or enterprise users, the difficulty and speed of implementation of PDM projects are very important factors in determining the success or failure of the project. Nanjing Dongpu Software PLDM system has been growing in the market for the real situation of China's manufacturing industry and has become an excellent system suitable for the Chinese machinery industry.

No need for a lot of development, no long-term implementation, no need for repeated training, Dongpu PLDM system will be easy to learn and use, functional and practical, interface rich and other features fully reflected in the implementation, so that enterprises can easily achieve information management.

At the same time, the preferential price reduces the investment risk of the enterprise, and the rapid implementation guarantees the return on investment.

2.4 Guarantee the company to obtain benefits

1) Establish a complete electronic data room to improve work efficiency

The result of the electronic management of product data is to establish an electronic data room, which not only improves the efficiency of development, but also improves the efficiency of all departments that need to use technical data for the following reasons:

Easy to query, reference, reuse, easy to produce and release;

Guarantee the accuracy of electronic documents, realize paperless office and digital management;

Security and confidentiality;

2) Establish a product information integration model to reduce work errors

The PLDM system is based on the task and integrates the information model with the product structure tree. During and after the product development process, the relevant personnel can obtain the latest information of the product comprehensively under the permission of the authority, thus reducing the work errors.

3) Promote standardization of development

Nanjing Dongpu Software PLDM helps enterprises to establish electronic libraries. Effective statistics involve relevance, which helps companies to improve their own standard libraries and quickly and conveniently find them in the development process to provide product quality and reduce costs.

4) Provide information needed for ERP

PLDM will integrate data with existing ERP companies to improve the efficiency and accuracy of information flow.

5) Reduce costs

Saving work time in the technical department is straightforward to reduce the cost of the business, and there are other direct and indirect cost reductions:

The hierarchical, structured PLDM product model contains all bill of materials information, which avoids the various errors caused by manual preparation of bills of materials from drawings, and errors caused by different versions when components are borrowed from each other. .

Standardization and variant design are effective ways to reduce product costs, while PLDM systems are platforms that support the implementation of this approach.

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