Development and Research of Combined Machine Tool CAD System

The following is a rewritten and improved version of the original text, written in English with a natural, human-like tone. It exceeds 500 characters and maintains the key information while presenting it in a more engaging and coherent way. --- 1. The Importance of Adopting Combined Machine Tool CAD Technology Combined machine tools are specialized equipment made from standardized general parts and custom-designed components tailored to specific part shapes and machining requirements. These tools are typically used for single-piece production, involving one-time design and manufacturing. As a result, the design process is both complex and time-consuming. In today's competitive market, customers demand advanced technology, reliable quality, and shorter lead times. At the heart of meeting these expectations is the design process itself. Traditional manual methods have proven inadequate in keeping up with modern demands. Therefore, adopting CAD (Computer-Aided Design) technology has become essential, allowing designers to move away from traditional drafting boards and embrace digital innovation. 2. Current Application of CAD in Combined Machine Tools CAD technology for combined machine tools has been researched internationally since the early 1970s, especially in developed countries. With the advancement of computer technology, interactive graphics, and database management systems, CAD applications have become more practical and widely used. Many industrialized nations now use modular machine tools integrated with CAD systems, aiming toward fully integrated CAD/CAM environments. In the U.S., companies like INGERSOLL have implemented highly advanced CAD workstations, achieving nearly 100% CAD usage. In China, research into CAD for combined machine tools began as early as the 1970s. By 1978, the country recognized the importance of this technology and initiated joint projects among universities and research institutes. Despite early progress, challenges such as high hardware costs and limited software usability hindered widespread adoption. 3. Development of Specialized CAD Software for Combined Machine Tools CAD is a cornerstone of modern information technology, and its commercialization plays a vital role in high-tech industries. Developing industry-specific CAD software not only brings economic benefits but also enhances productivity and competitiveness. During China’s “Ninth Five-Year Plan,” the automotive industry became a key sector, driving the need for faster and more accurate machine tool design. Implementing CAD technology improves efficiency, reduces design cycles, and boosts product quality, ultimately increasing company competitiveness. Dalian, known as a major industrial hub, has played a leading role in advancing combined machine tool technology. The Dalian Composite Machine Tool Research Institute aims to provide powerful, user-friendly CAD software that supports automation, innovation, and enhanced design capabilities. 4. Technical Foundation for Software Development With the rapid development of microelectronics, personal computers have significantly improved in performance. Modern PCs can now handle tasks previously reserved for workstations. CAD software like Pro/Engineer and I-DEAS has been adapted for Windows environments, making them more accessible. Using technologies such as SDK, DDE, ODBC, and OLE, a comprehensive CAD system integrating general mechanical and combined machine tool design has been developed. 5. Features of the Combined Machine Tool CAD System The CAD software is built using C++ and runs on Windows, featuring a parametric graphic and database management system. It includes modules for fixture design, three-dimensional automatic line programming, general drawing creation, and multi-axis box design. Each module supports interactive design, parameterization, and data-driven decision-making. For example, the fixture CAD system includes positioning support, clamping mechanisms, guiding devices, and force analysis tools. The multi-axis box system automates gear and transmission design, ensuring accuracy and efficiency. 6. Operating Environment for the CAD Software The software requires a minimum of a 486 CPU, 16MB of RAM, and over 350MB of hard disk space. It runs on Windows 95/98 or NT 4.0, and integrates with AutoCAD R14.0 for seamless compatibility. 7. Recognition and Market Adoption The 1998 version of the combined machine tool CAD software passed expert evaluation and was successfully launched. It has since been widely adopted by major manufacturers in China, including Jiangsu Hengli, Baoding Second Machine Tool Factory, and others. These companies have benefited from improved design efficiency, enhanced creativity, and increased competitiveness through the integration of CAD technology. --- This revised version ensures clarity, coherence, and a more natural flow while preserving all critical details from the original text.

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