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本文介绍了气缸套同轴度在三坐标上的正确测量方法,利用三坐标测量机进行检测,三坐标测量既直观又方便,且测量精度高,可以大幅度的降低生产成本,缩短生产周期,但由于不正确的评价方式,可能会出现测量结果误差很大,从而误导生产过程的控制。 相似文献
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针对日常生产过程中圆度仪测量发动机缸孔圆柱度出现的问题,探索三坐标测量缸孔圆柱度的正确方法。从三坐标机型的选择、测头的配置、采样策略的规划、滤波参数的选择及测量方案的设计等五个方面进行了实践、验证比较与误差分析,得出科学的缸孔圆柱度的三坐标测量方法,并应用于公司的新型发动机铝合金缸体缸孔圆柱度的测量。 相似文献
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三坐标测量是一种具有高精度、高效率的测量设备,在模具行业中应用广泛。本文阐述了三坐标测量机的结构组成及测量原理,对三坐标测量机在汽车覆盖件模具行业中的应用进行了初步介绍,同时指出了三坐标测量机在测量过程中正确使用应该注意的几点事项。 相似文献
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对基于CATIA数模三坐标机在线测量方法进行探讨。分析了PC—DMIS软件在线调用CATIA数模进行零件测量的原理,阐述了服务器、三坐标测量终端机的正确设置以及在线测量的步骤,实现零件品质控制的目的。 相似文献
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为提高三坐标测量技术在教学中的应用,将VR技术与真实的三坐标手持器相结合进行三坐标测量虚拟仿真系统研发。仿真系统由专用的三坐标测量虚拟仿真软件与自主设计加工的手持控制器组成,具有与真实的三坐标设备相同的测量操作功能,具有高度仿真的三坐标测量环境,可实现被测量工件的三维模型比对、测量常用数据、评价常用公差、生成测量数据报告等功能。 相似文献
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基于PRO/E的三坐标测量机自动检测技术 总被引:1,自引:0,他引:1
三坐标测量机被称之为"测量中心",广泛应用于检测零件,分析尺寸和几何误差。PRO/CMM模块是PRO/E软件的一个检测模块,可由被测零件生成检测程序,驱动测量机进行检测。通过某零件的测量详细的说明了CMM模块的使用方法,实验结果符合要求。 相似文献
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本文就跳动误差的三坐标测量方法进行研究分析,并对同一被测件用常规方法和三坐标测量方法进行测量实验,分析了测量结果的影响因素,为跳动误差的准确测量提供参考,并为现有三坐标测量机的测量软件升级提供依据。 相似文献
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CMM与CAD/CAPP/CAM系统的集成方法 总被引:2,自引:0,他引:2
坐标测量机( C M M) 与 C A D/ C A P P/ C A M 系统的集成化对于提高仿形加工的精度和效率十分必要。本文重点介绍了 C M M 与 C A D/ C A P P/ C A M 系统的接口方式。 相似文献
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Pawel J. Swornowski 《Scanning》2013,35(4):222-231
The article presents the application of neural networks in determining and correction of the deformation of a coordinate measuring machine (CMM) workspace. The information about the CMM errors is acquired using an ADXRS401 electronic gyroscope. A test device (PS‐20 module) was built and integrated with a commercial measurement system based on the SP25M passive scanning probe and with a PH10M module (Renishaw). The proposed solution was tested on a Kemco 600 CMM and on a DEA Global Clima CMM. In the former case, correction of the CMM errors was performed using the source code of WinIOS software owned by The Institute of Advanced Manufacturing Technology, Cracow, Poland and in the latter on an external PC. Optimum parameters of full and simplified mapping of a given layer of the CMM workspace were determined for practical applications. The proposed method can be employed for the interim check (ISO 10360–2 procedure) or to detect local CMM deformations, occurring when the CMM works at high scanning speeds (>20 mm/s). SCANNING 35: 222‐231, 2013. © 2012 Wiley Periodicals, Inc. 相似文献
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The purpose of this research is to present a method to estimate the Coordinate Measuring Machine (CMM) measurement uncertainty. The approach is based on a performance test using a ball bar gauge and a factorial design technique. A factorial design was applied to carry out a performance test and to investigate CMM errors associated to orientation and length in the work volume. The CMM measurement uncertainty was estimated with components of variance obtained after statistical analysis of variance applied to volumetric measurement errors. An application was performed with a Moving Bridge CMM and the results were compared to the volumetric performance test proposed by ANSI/ASME B89.4.1 standard. The results showed that the proposed method is suitable to investigate CMM hardware performance and determine the contribution of machine variables to measurement uncertainty. 相似文献
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《Measurement》2014
Coordinate Measuring Machine (CMM) has been an important inspection tool in quality control for several years owing to its high accuracy and precision. Effectiveness of inspection plan generated by CMM greatly depends on measurement cycle time. Lesser the inspection time taken by CMM to measure a given part better will be the performance of inspection process. Therefore, it has been critical to reduce measurement time for efficient performance of inspection process. In this paper, methodologies to generate most suitable measurement path resulting into minimum inspection time has been introduced. These methodologies are based on different algorithms to reduce measurement cycle time for CMM. The different algorithms have successfully been explored and compared to show their effectiveness in minimizing inspection time for stationary CMM equipped with touch trigger probe. The proposed methodologies have also been implemented and tested on real-world mechanical part with certain number of features to demonstrate their applicability. 相似文献
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坐标测量机的新发展——并联运动机构坐标测量机 总被引:12,自引:7,他引:5
从空间机构学的角度出发,可将坐标测量机分为串联机构坐标测量机和并联机坐标测量机两大类.由于并联机构坐标测量机测量精度高,测头位姿灵活,同时又具有“硬件”简单,“软件”复杂的特点,因而,正在成为坐标测量机领域研究的新热点.文章首先分析了普通笛卡尔串联机构坐标测量机的发展现状及存在问题,然后介绍了并联机构坐标测量机的结构及特点,并对国内外有关并联运动机构理论及其在坐标测量机领域的研究现状与发展趋势进行了综述,最后,对并联机构坐标测量机研究过程中应注意的主要问题进行了探讨. 相似文献