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International Journal of Machine Tool Design and Research最新文献

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A new method for measuring and compensating pitch error in the manufacturing of lead screws 一种测量和补偿丝杠加工中螺距误差的新方法
Pub Date : 1986-01-01 DOI: 10.1016/0020-7357(86)90028-4
Quingxian Zhou , Omer Anlagan , Kornel Eman

A new method for measuring and compensating pitch error in lead screw machining is presented. This method includes the measurement of the actual pitch error and a forecasting technique based on time series analysis. The measured data is used to develop an autoregressive model of the error from which the forecasts and corrections are determined.

The objective of this work is to investigate the feasibility of compensating the pitch error by using the forecast pitch error data. The paper describes the experimental setup, explains the modeling, forecasting and compensation procedure of the pitch error. The compensation method discussed has been found feasible in all cases in which the machining accuracy directly depends on the accuracy of the kinematic relationship between a rotational transmission element and the machine tool table. The results indicate that on the average 89% of the single pitch error and 99% of the cumulative pitch error can be compensated for.

提出了一种测量和补偿丝杠加工中螺距误差的新方法。该方法包括实际俯仰误差的测量和基于时间序列分析的预测技术。测量数据用于建立误差的自回归模型,从而确定预测和修正。本文的目的是研究利用预测的俯仰误差数据补偿俯仰误差的可行性。本文介绍了实验装置,说明了俯仰误差的建模、预测和补偿过程。所讨论的补偿方法在加工精度直接取决于旋转传动元件与机床工作台之间运动关系的精度的所有情况下都是可行的。结果表明,平均可补偿89%的单节距误差和99%的累积节距误差。
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引用次数: 3
A feasibility study of on-line drill wear monitoring by DDS methodology 应用DDS方法在线监测钻头磨损的可行性研究
Pub Date : 1986-01-01 DOI: 10.1016/0020-7357(86)90003-X
Pulak Bandyopadhyay , Evers Molina Gonzalez , Ren Huang , S.M. Wu

A new approach to achieve on-line drill life monitoring is introduced using the Dynamic Data System (DDS) methodology. Changes in the thrust and torque of the drilling process were investigated. A static analysis provided poor correlation and low sensitivity between average thrust/torque and drill flank wear. The dynamic parameters (natural frequencies and damping ratios) of the drilling process were strongly related with the average drill flank wear. Hence, a new parameter “Normalized Damping Ratio” (NDR) was formed from the DDS analysis using the dynamic part of the signal which correlates with drill wear. The possibility of developing an on-line drill flank wear monitoring scheme using the NDR index is pointed out.

介绍了一种利用动态数据系统(DDS)方法实现钻井寿命在线监测的新方法。研究了钻井过程中推力和扭矩的变化。静态分析表明,平均推力/扭矩与钻头侧面磨损之间的相关性较差,灵敏度较低。钻井过程的动态参数(固有频率和阻尼比)与平均钻齿磨损密切相关。因此,利用与钻头磨损相关的信号的动态部分,通过DDS分析形成了一个新的参数“归一化阻尼比”(NDR)。指出了利用NDR指标建立钻面磨损在线监测方案的可能性。
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引用次数: 19
4542467 Method of operating a machine tool with a sensing probe in order to gather positional data for the calculation of tool offset parameters 4542467操作带有传感探头的机床以便收集用于计算刀具偏移参数的位置数据的方法
Pub Date : 1986-01-01 DOI: 10.1016/0020-7357(86)90271-4
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引用次数: 0
4533034 Method and apparatus for automatically supplying and removing pallets of a pallet magazine to and from the working space of a machine tool 4533034用于向机床的工作空间自动提供和移出托盘库的托盘的方法和设备
Pub Date : 1986-01-01 DOI: 10.1016/0020-7357(86)90264-7
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引用次数: 0
4532501 Capacity coupled machine tool safety system 4532501容量耦合机床安全系统
Pub Date : 1986-01-01 DOI: 10.1016/0020-7357(86)90261-1
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引用次数: 0
4555857 Method and device for the accurate setting of machine tools 4555857机床精确设置的方法和装置
Pub Date : 1986-01-01 DOI: 10.1016/0020-7357(86)90026-0
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引用次数: 0
4559604 Pattern recognition method 4559604模式识别方法
Pub Date : 1986-01-01 DOI: 10.1016/0020-7357(86)90066-1
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引用次数: 0
4507850 Boaring bar adjusting apparatus 4507850轴承杆调整装置
Pub Date : 1986-01-01 DOI: 10.1016/0020-7357(86)90221-0
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引用次数: 0
4514122 Pressure foor for machine tool 4514122机床压力座
Pub Date : 1986-01-01 DOI: 10.1016/0020-7357(86)90231-3
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引用次数: 0
4513979 Machine tool with chucking controls 4513979带卡盘控制的机床
Pub Date : 1986-01-01 DOI: 10.1016/0020-7357(86)90230-1
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引用次数: 0
期刊
International Journal of Machine Tool Design and Research
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