1 Introduction Polycrystalline Cubic Boron Nitride (PCBN), as a new type of high performance tool material, has received extensive attention in the field of machining. PCBN cutting tools have excellent cutting performance and are very suitable for advanced machining processes such as hard cutting, dry cutting, high speed cutting, etc., especially in the machining of difficult-to-cut materials, automated production line processing and other aspects have other tools incomparable advantages. Although the use of PCBN tools is expanding and the huge economic benefits have been achieved, there is currently a lack of a consulting system that can quickly and easily provide guidance on the use of PCBN tools and related information, thus giving site operators the correct choice and use. PCBN tools have brought great inconvenience. For this reason, this paper has developed a PCBN tool multimedia database consultation management system. With this system, users can effectively manage PCBN tool processing information (such as cutting amount, tool geometry, etc.) and quickly query, and reasonably select PCBN tool products accordingly, which can effectively improve the use efficiency of PCBN tool and reduce production. cost. The system can also play a good role in promoting the reasonable design and application of PCBN tools. 2 system structure and function module PCBN tool multimedia database consultation management system is mainly for the processing site tool personnel, based on Windows NT/98 environment database application software. In addition to the functions of a general database, the system also has multi-media technical consulting, database management, simulation and demonstration of PCBN tool related information. The system structure is shown in Figure 1. 
Fig. 1 System structure block diagram Database management module The database management module consists of three sub-modules: cutting database, video database and image database, which can realize functions such as browsing, querying, adding, deleting, and editing of the database. Figure 2 shows the computer interface of the database management system.
Figure 2 PCBN tool database management system interface
Figure 3 Video screen of PCBN tool cutting
Figure 4 Image of PCBN tool wear pattern
Figure 5 PCBN tool query interface
Figure 6 Tool Query Result Interface
Figure 7 PCBN tool surface roughness 3D simulation graphics
Figure 8 Manufacturer Product Introduction Submodule Interface
Figure 9 PCBN tool cutting performance, use technical consulting page Cutting database sub-module This sub-module can manage the general cutting data, with the function of a general database. The sub-sub-module video database module use of multimedia technology, a variety of video information on PCBN tooling in advance for editing and layout, as the video data stored in the database and manage it. Using the MMcontrol multimedia controls in Visual Basic, you can use the PCBN tool to make and play color video data that is actually processed, and it is equipped with good audio effects. Figure 3 shows the video screen for PCBN tool cutting using this module. Image Database Sub-module This sub-module archives existing PCBN tool image data such as tool wear images, tool life curves, and tool structure charts as image data, and can be retrieved as needed. Figure 4 shows an image of PCBN tool wear patterns. During the use of the PCBN tool, the quick query of relevant processing information has important practicality for the operator. When developing a database management system, an Open Data Base Connectivity (ODBC) data source needs to be established. ODBC is essentially a database engine. Through its provided functions, it can access various data in the database. ODBC is also a unified database application interface (API) designed for various database management systems. It consists of API, driver manager, and driver. Because ODBC provides a unified database management system standard interfaces, allowing designers when programming without concern for the underlying DBMS (Data Base Management System), which greatly simplifies the exchange of data between different DBMS. The system's query function uses SQL (Structured Query Language) query technology. The technique is easy to learn, with great flexibility to select it and record a relational database or multiple tables in accordance with the guidelines prescribed by the English designer similar command statement. The inquiry method is simple and clear, and can be queried according to the tool number and the workpiece material. When querying according to the workpiece material, the result is all available tool types so that the tool can be optimized. Figure 5 shows the PCBN tool query interface. After selecting the query method, click the "Search" button to enter the query result interface as shown in Figure 6. Here, the user can query the most suitable cutting amount and tool geometry parameters for the processing of corresponding material workpieces for any number of tools. The tool life simulation module is quite complex because of the calculation formula of tool life. In order to obtain the image and realistic PCBN tool life three-dimensional simulation surface, the system uses Matlab simulation software. Matlab is a high-performance engineering calculations for programming software, powerful computing and graphics capabilities, enabling large amounts of data visualization of the results, and can easily modify and edit the graphical interface. Using Visual Basic and Matlab interface technology in the tool life simulation module, you can call Matlab program in Visual Basic environment, and use DLL (Dynamic Link Library) dynamic link library to read the relevant parameters in the tool database in Matlab, draw out Tool life 3D simulation graphics. Figure 7 shows a three-dimensional simulation of the machined surface roughness based on the tool's leading angle, sub-angle, and feed. According to the cutting parameters v, f and ap, the tool life can be simulated to obtain a clear and clear relationship between the tool life T and the cutting parameters, which can provide necessary reference information for reasonable choice of cutting amount and tool life. In the next step, we will further enrich and improve system functions by expanding the use of the powerful toolbox of Matlab software. The technical consulting module uses the technical consulting module to query various information about PCBN tools. This module consists of five sub-modules. System Help Sub-module The system help sub-module has a full library commentary to provide detailed help information for the user to use the system correctly. The sub-module is similar to a multi-media teaching software, has a voice commentary function, strong viewing. Manufacturer's Product Introduction Sub-module This sub-module details the performance and features of PCBN tool products from five well-known foreign PCBN tool manufacturers (De Beers, Toshiba, Sumitomo, Nippon, and GE) and some domestic manufacturers. The content is informative and authoritative. It provides necessary reference information for users to use PCBN tool products rationally. Figure 8 shows the interface of the manufacturer's product introduction sub-module. The tool design uses a technical consultation sub-module. This sub-module mimics the format of the Windows Explorer and deals with PCBN tool manufacturing processes, metal softening effects when cutting hardened steel, hard cutting mechanisms, machined surface integrity, and PCBN tool damage. Information about the mechanism, tool life, and the use of PCBN tools are integrated and inquired under the VB environment. Use the Web Brower browser to view dynamic web page effects (as shown in Figure 9). The user can easily and quickly query the PCBN tool information in the directory or index as needed. The multimedia information browsing sub-module can use this sub-module to view and browse all data and multimedia data in the database. Machining example introduction Sub-module This sub-module can play a demo example of a PCBN tool for the user in multimedia form. 3 Online query function The system has a function of searching for the Internet and can use the Internet technology to make a remote query of the system database on the Internet. Because this system is built on Microsoft SQL Server 7.0 platform, its network function has better stability than databases created with other software. 4 Conclusion The PCBN tool multimedia database consultation management system introduced in this paper is a kind of application software based on Windows NT/98 environment, with reasonable design, complete function, rich information, beautiful interface, adaptability and portability, simple and flexible operation, The advantages of stable and reliable operation, easy maintenance, etc., can well meet the needs of PCBN tool information management, and have extremely high use value for PCBN tool users and research and development personnel.
Fig. 1 System structure block diagram Database management module The database management module consists of three sub-modules: cutting database, video database and image database, which can realize functions such as browsing, querying, adding, deleting, and editing of the database. Figure 2 shows the computer interface of the database management system.
Figure 2 PCBN tool database management system interface
Figure 3 Video screen of PCBN tool cutting
Figure 4 Image of PCBN tool wear pattern
Figure 5 PCBN tool query interface
Figure 6 Tool Query Result Interface
Figure 7 PCBN tool surface roughness 3D simulation graphics
Figure 8 Manufacturer Product Introduction Submodule Interface
Figure 9 PCBN tool cutting performance, use technical consulting page Cutting database sub-module This sub-module can manage the general cutting data, with the function of a general database. The sub-sub-module video database module use of multimedia technology, a variety of video information on PCBN tooling in advance for editing and layout, as the video data stored in the database and manage it. Using the MMcontrol multimedia controls in Visual Basic, you can use the PCBN tool to make and play color video data that is actually processed, and it is equipped with good audio effects. Figure 3 shows the video screen for PCBN tool cutting using this module. Image Database Sub-module This sub-module archives existing PCBN tool image data such as tool wear images, tool life curves, and tool structure charts as image data, and can be retrieved as needed. Figure 4 shows an image of PCBN tool wear patterns. During the use of the PCBN tool, the quick query of relevant processing information has important practicality for the operator. When developing a database management system, an Open Data Base Connectivity (ODBC) data source needs to be established. ODBC is essentially a database engine. Through its provided functions, it can access various data in the database. ODBC is also a unified database application interface (API) designed for various database management systems. It consists of API, driver manager, and driver. Because ODBC provides a unified database management system standard interfaces, allowing designers when programming without concern for the underlying DBMS (Data Base Management System), which greatly simplifies the exchange of data between different DBMS. The system's query function uses SQL (Structured Query Language) query technology. The technique is easy to learn, with great flexibility to select it and record a relational database or multiple tables in accordance with the guidelines prescribed by the English designer similar command statement. The inquiry method is simple and clear, and can be queried according to the tool number and the workpiece material. When querying according to the workpiece material, the result is all available tool types so that the tool can be optimized. Figure 5 shows the PCBN tool query interface. After selecting the query method, click the "Search" button to enter the query result interface as shown in Figure 6. Here, the user can query the most suitable cutting amount and tool geometry parameters for the processing of corresponding material workpieces for any number of tools. The tool life simulation module is quite complex because of the calculation formula of tool life. In order to obtain the image and realistic PCBN tool life three-dimensional simulation surface, the system uses Matlab simulation software. Matlab is a high-performance engineering calculations for programming software, powerful computing and graphics capabilities, enabling large amounts of data visualization of the results, and can easily modify and edit the graphical interface. Using Visual Basic and Matlab interface technology in the tool life simulation module, you can call Matlab program in Visual Basic environment, and use DLL (Dynamic Link Library) dynamic link library to read the relevant parameters in the tool database in Matlab, draw out Tool life 3D simulation graphics. Figure 7 shows a three-dimensional simulation of the machined surface roughness based on the tool's leading angle, sub-angle, and feed. According to the cutting parameters v, f and ap, the tool life can be simulated to obtain a clear and clear relationship between the tool life T and the cutting parameters, which can provide necessary reference information for reasonable choice of cutting amount and tool life. In the next step, we will further enrich and improve system functions by expanding the use of the powerful toolbox of Matlab software. The technical consulting module uses the technical consulting module to query various information about PCBN tools. This module consists of five sub-modules. System Help Sub-module The system help sub-module has a full library commentary to provide detailed help information for the user to use the system correctly. The sub-module is similar to a multi-media teaching software, has a voice commentary function, strong viewing. Manufacturer's Product Introduction Sub-module This sub-module details the performance and features of PCBN tool products from five well-known foreign PCBN tool manufacturers (De Beers, Toshiba, Sumitomo, Nippon, and GE) and some domestic manufacturers. The content is informative and authoritative. It provides necessary reference information for users to use PCBN tool products rationally. Figure 8 shows the interface of the manufacturer's product introduction sub-module. The tool design uses a technical consultation sub-module. This sub-module mimics the format of the Windows Explorer and deals with PCBN tool manufacturing processes, metal softening effects when cutting hardened steel, hard cutting mechanisms, machined surface integrity, and PCBN tool damage. Information about the mechanism, tool life, and the use of PCBN tools are integrated and inquired under the VB environment. Use the Web Brower browser to view dynamic web page effects (as shown in Figure 9). The user can easily and quickly query the PCBN tool information in the directory or index as needed. The multimedia information browsing sub-module can use this sub-module to view and browse all data and multimedia data in the database. Machining example introduction Sub-module This sub-module can play a demo example of a PCBN tool for the user in multimedia form. 3 Online query function The system has a function of searching for the Internet and can use the Internet technology to make a remote query of the system database on the Internet. Because this system is built on Microsoft SQL Server 7.0 platform, its network function has better stability than databases created with other software. 4 Conclusion The PCBN tool multimedia database consultation management system introduced in this paper is a kind of application software based on Windows NT/98 environment, with reasonable design, complete function, rich information, beautiful interface, adaptability and portability, simple and flexible operation, The advantages of stable and reliable operation, easy maintenance, etc., can well meet the needs of PCBN tool information management, and have extremely high use value for PCBN tool users and research and development personnel.
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