Optimized measurement strategy for multiple-orientation technique on coordinate-measuring machines

The measurement of a part on a coordinate measuring machine may be affected by many factors such as machine frame accuracy, probe configuration, measuring environment, and measurement strategy. In order to understand the effect of some of those factors on measurements performed in industrial-grade machines, a master production workpiece has been chosen and circulated in Brazilian industries for collecting data points of the calibrated workpiece features according to a predefined master measuring protocol. Conclusions could be drawn about the behavior of each machine under varying conditions, measurement divergences from similar machines operating under distinct conditions, the complexity of measurements with CMMs, and the need for good measurement practices in the productive sector.

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Software Dedicated to Determining a Strategy of Coordinate Measurements

Materials Science Forum ◽

10.4028/www.scientific.net/msf.957.179 ◽

2019 ◽

Vol 957 ◽

pp. 179-186

Author(s):

Marek Magdziak ◽

Dominika Ziaja

Keyword(s):

Free Form ◽

Coordinate Measuring Machines ◽

Machining Processes ◽

Matlab Software ◽

Measurement Strategy ◽

Coordinate Measurements ◽

Free Form Surfaces ◽

Cam Software

The paper presents the developed software dedicated to determining a measurement strategy of contact coordinate measurements conducted by using coordinate measuring machines. The created software enables to calculate locations of the scanning lines along free-form surfaces of measured workpieces. The presented program was developed by using the MATLAB software. The created program was tested based on the selected examples of curvilinear surfaces. Measurement points were located in the parts of surfaces characterized by the biggest form deviations resulting from machining processes. The calculated deviations were the results of simulations performed by using selected CAM software. The presented software increases the efficiency of measurement processes.

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Coordinate Measuring Machine Probes Effect during Inner Thread Position Measurement

Proceedings ◽

10.3390/proceedings2020063055 ◽

2020 ◽

Vol 63 (1) ◽

pp. 55

Author(s):

Ferencz Peti ◽

Petru Serban

Keyword(s):

Coordinate Measuring Machine ◽

New Method ◽

Coordinate Measuring Machines ◽

Position Measurement ◽

Measurement Strategy ◽

Accuracy Of Measurements ◽

Measuring Machine

Starting from the idea of improving Coordinate Measuring Machines’ (CMM) measurement strategy for inner thread locations, we developed a new method which increases the accuracy of measurements and takes us closer to the pitch diameter. This article will analyze this new method by testing different touching probes configurations for different thread sizes. The objective is to identify the best probe configuration to be used in the measurements of different inner thread sizes.

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