水射流机床CAD系统中轨迹提取与图形反生成的实现

Realization of Track Pick-up and Graphic Counter-drawing of CAD Graphics System on Water Jet Cutting Machine

就水射流切割机床交互式图形系统中轨迹提取和轨迹反生成问题进行了研究。水射流切割机床CAD系统中由于图形的存储顺序与加工顺序不吻合,在生成数控代码之前必须将图形轨迹按顺序提取,然后将之存储到数据库中。为了验证数据库中轨迹数据的正确性,用VC++实现了轨迹的顺序提取和轨迹图形的反生成,以便与CAD系统中的图形进行比较。反复实验表明,该系统运行可靠,具有实用性,可以用于其他类型切割机床中。

In this paper, Track Pick - up and Graphic Counter - drawing of CAD Graphics System on water jet cutting machine are developed. The graphics track must be picked up according to the machining order and stored into database, because the storage sequence of graphics does not tally with the machining sequence in CAD system of water jet cutting machine. It is necessary for graphics to be counter - drawn according to the tack data in database and compared with the graphics in CAD system for the sake of validating the track data in database. The above problems are researched, and the track picked up according to the machining order and the graphic counter - drawing is realized with VC ＋ ＋ language. Repeatedly testing proves that this system can operate stably and is practical, and can be applied to other cutting machines.