通过标定方法提高数控机床进给运动机构的定位精度

A. Stoica, G. Stan, Cătălin Drob
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引用次数: 0

摘要

数控机床的精度是使工件的几何形状和尺寸符合设计人员通过技术图纸规定的公差范围的最重要参数之一。当机床交付给客户时,它符合文件中规定的精度限制,但经过一段时间的使用间隔后,由于相对运动和机器使用条件下部件的磨损。本文提出了一种利用“卡尺”测试数控机床精度的创新方法,以提高进给运动机构的定位精度。该装置设计制造完成后,需要在三坐标测量机上对目标点进行测量,使该装置成为一个“卡尺”。为了检查机床,“卡尺”位于机床的工作台上,用属于机床的触觉射手的探头在目标点上进行测量。测量结果被存储,并与通过坐标测量机进行的测量结果进行比较。根据这两种测量结果,在机床数控软件中对误差进行相应的修正。
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"INCREASING THE POSITIONING ACCURACY OF THE FEED KINEMATIC LINKAGES OF CNC MACHINE TOOLS THROUGH THE CALIBRATION METHOD "
The accuracy of a CNC machine tool is one of the most important parameters that make the geometry and dimensions of the work pieces comply with the tolerance limits specified through the designer’s technical drawing. When a machine tool is handed over to the customer it is compliant in terms of the accuracy limits specified in the documentation but, after a time interval of usage, because of the wear of the components in relative motion and machine exploitation conditions. This work suggests an innovating method of testing the accuracy of a CNC machine tool by using the “calliper”, with a view to enhancing the positioning accuracy of the feed kinematic linkages. After designing and manufacturing this device, the measurement of the target points on the coordinate measuring machine is necessary, so that this device becomes a “calliper”. For inspecting the machine tool, the “calliper” is located on the machine table, being measured at the target points by means of the probe with the tactile shooter that belongs to the machine. The measurement results are stored and compared to the results of the measurements performed through the coordinate measuring machine. In function of the two measurements the related corrections of the errors will be done in the software of machine tool numerical control.
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来源期刊
International Journal of Modern Manufacturing Technologies
International Journal of Modern Manufacturing Technologies Engineering-Industrial and Manufacturing Engineering
CiteScore
0.70
自引率
0.00%
发文量
15
期刊介绍: The main topics of the journal are: Micro & Nano Technologies; Rapid Prototyping Technologies; High Speed Manufacturing Processes; Ecological Technologies in Machine Manufacturing; Manufacturing and Automation; Flexible Manufacturing; New Manufacturing Processes; Design, Control and Exploitation; Assembly and Disassembly; Cold Forming Technologies; Optimization of Experimental Research and Manufacturing Processes; Maintenance, Reliability, Life Cycle Time and Cost; CAD/CAM/CAE/CAX Integrated Systems; Composite Materials Technologies; Non-conventional Technologies; Concurrent Engineering; Virtual Manufacturing; Innovation, Creativity and Industrial Development.
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