共查询到20条相似文献,搜索用时 46 毫秒
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加工中心在线检测技术是提高加工中心加工精度和自动化程度的关键技术之一。在该技术发展的原有基础上,以CAD技术为核心,提出了将检测工作放在设计阶段进行的观点,并选择AutoCAD2000作为开发平台,建立了加工中心在线检测与CAD的集成系统,为加工中心的在线检测技术探索出一种新的方法。 相似文献
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加工中心在线检测仿真技术研究 总被引:1,自引:0,他引:1
对加工中心在线检测仿真技术进行了研究 ,利用面向对象编程技术进行了仿真系统编译系统的开发。该仿真系统可根据检测宏程序对检测过程进行图形化的模拟 ,可有效地避免检测程序的编制错误 ,提高编程质量和效率 相似文献
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研究了CIMS环境中基于加工中心的在线检测技术,开发完成与机床进行通讯的专用接口通讯板卡,具有信号隔离、信号变换、信号传递等功能。讨论了测头选用方法。在分析进给速度对检测精度影响的基础上,构造了一种适用于在线检测的扩展时间分割增量插补算法。最后,介绍了检测系统软件的功能。 相似文献
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对加工中心在线检测软件误差补偿技术进行研究,基于Windows平台开发了在线检测误差补偿软件。并对软件开发中的关键技术检测系统的几何误差模型的建立、测头误差处理技术进行了研究。可以同时对测头误差、机床几何误差进行补偿,有效地提高了在线检测精度。软件系统在MAKINO立式加工中心上进行了实验验证。 相似文献
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黄连生 《机械工人(冷加工)》1999,(4):36-37
许多加工中心都配有在线测量系统,其典型用途是:①对加工后的工件进行在线检测。②自动校正刀具或工件的坐标位置。③加工前检测工件参考点(面)的安装位置等。在某种程度上起着约束适应控制的功能,构成数控机床质量保证系统中的一 相似文献
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The tool geometry in the metal removal process has a substantial impact on the process performance. This work attempts to vary the geometrical relationship on-line between tool and workpiece. A comprehensive analysis of the tool's geometry and some machining parameters is presented. Optimal conditions for minimum power requirements are established. A detailed design of a device facilitating this on-line geometry variation is described. Experimental results for analysis validation are included and the reasons for and advantages of tool geometry variation are discussed. 相似文献
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本文以设计方法学的观点,对如何建立机床总体布局CAD系统进行了深入的探讨。文中详细阐述了布局信息的分类分层描述方法原理,并对设计信息的自动传递、运动干涉的自动检验以及操作图形的用户界面等问题进行了研究。 相似文献
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STATE SPACE MODELING OF DIMENSIONAL MACHINING ERRORS OF SERIAL-PARALLEL HYBRID MULTI-STAGE MACHINING SYSTEM 总被引:1,自引:1,他引:0
XI Lifeng DU Shichang 《机械工程学报(英文版)》2007,20(5):64-67
The final product quality is determined by cumulation, coupling and propagation of product quality variations from all stations in multi-stage manufacturing systems (MMSs). Modeling and control of variation propagation is essential to improve product quality. However, the current stream of variations (SOV) theory can only solve the problem that a single SOV affects the product quality. Due to the existence of multiple variation streams, limited research has been done on the quality control in serial-parallel hybrid multi-stage manufacturing systems (SPH-MMSs). A state space model and its modeling strategies are developed to describe the multiple variation streams stack-up in an SPH-MMS. The SOV theory is extended to SPH-MMS. The dimensions of system model are reduced to the production-reality level, and the effect and feasibility of the model is validated by a machining case. 相似文献
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ICHIRO Hagiwara 《机械工程学报(英文版)》2006,19(2):276-281
In order to estimate the motion errors of 5-axis machine center, the double ball bar (DBB) method is adopted to realize the diagnosis procedure. The motion error sources of rotary axes in 5-axis machining center comprise of the alignment error of rotary axes and the angular error due to various factors, e.g. the inclination of rotary axes. From sensitive viewpoints, each motion error is possible to have a particular sensitive direction in which deviation of DBB error trace arises from only some specific error sources. The model of the DBB error trace is established according to the spatial geometry theory. Accordingly, the sensitive direction of each motion error source is made clear through numerical simulation, which is used as the reference patterns for rotational error estimation. The estimation method is proposed to easily estimate the motion error sources of rotary axes in quantitative manner. To verify the proposed DBB method for rotational error estimation, the experimental tests are carried out on a 5-axis machining center M-400 (MORISEIKI). The effect of the mismatch of the DBB is also studied to guarantee the estimation accuracy. From the experimental data, it is noted that the proposed estimation method for 5-axis machining center is feasible and effective. 相似文献
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加工中心床身结构分析 总被引:19,自引:1,他引:18
用有限元方法对TH5663型数控加工中心机床的床身结构进行分析,并对床身筋板的不同布局方案对机床刚度的影响进行了探讨,为机械大件结构的合理性设计与性能分析进行了有益的尝试。 相似文献
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SOFTWARE-CONTROLLED SYSTEM OF ULTRA-PRECISION MACHINING AXISYMMETRIC ASPHERIC MIRROR 总被引:1,自引:0,他引:1
GU Yinbiao WEI Lizhen 《机械工程学报(英文版)》2006,19(2):256-259
In order to improve machining accuracy and efficiency, a software-controlled system of ultra-precision machining for axisymmetric aspheric mirror, using techniques of error compensation, remote transmission and modularization, is designed based on industrial PC, Windows 2000 work platform and Visual Basic 6.0. By experiments, this system realizes functions of ultra-precision machining, machining error compensation, remote data transmission and automatic data transformation among first machining, compensation machining and accuracy measurement. The actual application shows that error compensation improves machining accuracy, remote transmission improves machining efficiency while modularization avoids repeated work and improves design efficiency. Therefore, the system has met ultra-precision machining need for aspheric mirror. 相似文献