现在，，， ，，，前进机床精度的措檀越要有：框中框热对称结构设计，，， ，，，可获得高刚性、高精度和低移动质量；；有限元结构优化设计，，， ，，，使机床结构刚性匀称漫衍，，， ，，，固有频率前进3～4倍，，， ，，，减小振动，，， ，，，前进外貌加工质量；；对发热元件举行实时温度控制和赔偿；；机床几何精度误差和热变形实时监控与赔偿。。。 数控加工历程的仿真是虚拟制造手艺的焦点手艺之一，，， ，，，主要分为几何仿真和物理仿真。。。现在海内航空制造业举行的数控加工仿真还只停留在几何仿真的层面上，，， ，，，其作用主要是检查数控程序刀具轨迹的准确性和几何关预碰撞问题，，， ，，，而要实现更准确的仿真则必需对加工历程中的物理征象举行研究。。。大连数控加工的特点对夹具提出了两个基本要求：一是要包管夹具的坐标偏向与机床的坐标偏向相对牢靠；；二是要协调零件和机床坐标系的尺寸关系。。。
At present, the main measures to improve the precision of machine tools include: Thermally symmetric frame-in-frame structure design, which achieves high rigidity, high precision and low moving mass; Finite element structural optimization design, which distributes the structural rigidity of the machine tool evenly, raises the natural frequency by 3 to 4 times, reduces vibration and improves surface machining quality; Real-time temperature control and compensation for heat-generating components; Real-time monitoring and compensation for geometric accuracy errors and thermal deformation of machine tools. Simulation of the CNC machining process is one of the core technologies of virtual manufacturing, which is mainly divided into geometric simulation and physical simulation. At present, CNC machining simulation applied in the domestic aviation manufacturing industry is still limited to geometric simulation, which is mainly used to verify the correctness of tool paths in CNC programs and detect geometric interference and collision problems. To achieve more accurate simulation, it is necessary to study the physical phenomena during the machining process. The characteristics of CNC machining in Dalian impose two basic requirements on fixtures: First, the coordinate orientation of the fixture must be relatively fixed with that of the machine tool; Second, the dimensional relationship between the part and the machine tool coordinate system must be coordinated.
