Notice of Retraction: A fast error measurement system for CNC machine tools based on step-gauge

The cutting force induced error has been more important as the hard cutting and hard cutting material used. This paper proposed the direct measurement method of cutting force induced error, which realized the corresponding directly of the cutting force and the value of error in the working process. According to the discrimination of machine error characteristics reflected by the different measuring methods, it puts forward to building the mixed error model based on the measuring technology of one dimension and two dimension. The results could provides the test data and theoretical basis for the mechanism of the processing performance affected by the dynamic behavior of machine tools.

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Granite Step Gauge: A New Device for Error Measurement on CNC Machine Tools

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.472-475.328 ◽

2012 ◽

Vol 472-475 ◽

pp. 328-331 ◽

Cited By ~ 1

Author(s):

Huan Lao Liu ◽

Zuohui Zhou ◽

Bao Yue Chen ◽

Feng Liu ◽

Feng Lin Ye ◽

...

Keyword(s):

Machine Tools ◽

Cnc Machine Tools ◽

Error Measurement ◽

Time Cost ◽

Cnc Machine ◽

New Device ◽

Lead Screw ◽

Pitch Error ◽

Machine Calibration ◽

Easy Operation

A simple pitch error of lead screw error measurement based on the granite step gauge has been presented in this paper. This method has the advantages of easy operation, less time cost and also high accuracy. this method is expected to find wide applications in machine calibration, machine manufacture and error compensation.

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Measurement Method for Measuring Circular Motion Error of CNC Machine Tools

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.381-382.145 ◽

2008 ◽

Vol 381-382 ◽

pp. 145-148

Author(s):

K.H. Lin ◽

Ya Hui Hu ◽

C.A. Chan ◽

Ming Chang

Keyword(s):

Measurement System ◽

Machine Tools ◽

Measurement Method ◽

Circular Motion ◽

Numerical Control ◽

Cnc Machine Tools ◽

Small Scale ◽

Large Radius ◽

Cnc Machine ◽

Motion Error

The dynamic characteristic of CNC (computer numerical control) machine tools is a critical role to decide the accuracy and speed of machine. It is very important to improve the precision and reduce the motion error so as to manufacture complex and fine products. In general, the motion error is estimated by a two or three-dimensional ball bar measurement system. Although this technology is capable of dynamical measurement, its condition should be confined to a low speed or a large radius. A new measurement method for measuring circular motion error of CNC machine tools is proposed in this paper. The instrument consists of a dual-frequency laser interferometer, a beam splitter and two corner cubes. In order to evaluate the exactness of the results we get from our measurement system, we use RSF’s grid encoder to do another experiment and compare both the results. According to the results shown, our measurement system can measure both of the X and Y axes of the plane of the CNC stage in a small scale at the same time and can simplify the calibration procedure as well as shorten the time of measurement. This method can accomplish the two-axis measurement at a high speed, without being restricted by radius variations. It is a good, simple and effective measurement method.

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