Error mapping of CMMs and machine tools by a single tracking interferometer

Schwenke, H.; Franke, Matthias; Hannaford, J. F.; Kunzmann, H.

doi:10.1016/s0007-8506(07)60148-6

Cited by 190 publications

(117 citation statements)

References 6 publications

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“…Multilateration based approach is by far the most research technique to determine the geometric errors of large manufacturing or measuring systems nowadays [7,26,[105][106][107][108][109][110][111][112]. The approach relies on interferometric displacement measurements between reference points that are fixed to the machine base and offset points fixed to the machine spindle, near to the TCP [113].…”

Section: Indirect Measurement Methodsmentioning

confidence: 99%

Traceability on Machine Tool Metrology: A Review

Mutilba¹,

Gomez-Acedo²,

Kortaberria³

et al. 2017

Preprint

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Errors during manufacture of high value components are not acceptable nowadays in driving industries such as energy and transportation. Sectors such as aerospace, automotive, shipbuilding, nuclear power, large science facilities or wind power manufacture complex and accurate components that demand close measurements and fast feedback into manufacturing processes. New measuring technologies are already available in machine tools, including integrated touch probes and fast interface capabilities. They shall provide the possibility to measure the workpiece during or after the manufacturing process, maintaining the original setup of the workpiece and avoiding the manufacturing process from being interrupted to transport the workpiece to a measuring position. However, the traceability of the measurement process on a machine tool is not ensured yet and measurement data is still not fully reliable for process control or product validation. Due to the similarity between a coordinate measuring machine and a machine tool, some of the methods applied for a correct assessment of uncertainty in coordinate measuring machines are adapted to the challenges of a machine tool. The scientific objective is to determine the uncertainty on a machine tool measurement and, in this way, convert it into a machine integrated traceable measuring process. This paper reviews the fundamentals of machine tool metrology.

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Section: Indirect Measurement Methodsmentioning

confidence: 99%

Traceability on Machine Tool Metrology: A Review

Mutilba¹,

Gomez-Acedo²,

Kortaberria³

et al. 2017

Preprint

View full text Add to dashboard Cite

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“…Assuming that moving cars of the kinematic chain are rigid bodies, transformation and rotation matrices can be implemented by using a mathematical model (kinematic model) based on the MT configuration [6,7,11,13]. Then, the position of the tool with regard to the part to be machined is obtained in relation to the programmed nominal position, the position of the tip of the tool with respect to the reference machine (offsets), and the geometric errors of the axes.…”

Section: Structural Configuration and Kinematic Model Of The Machine mentioning

confidence: 99%

Adequacy of Technical and Commercial Alternatives Applied to Machine Tool Verification Using Laser Tracker

et al. 2016

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Besides presenting a volumetric verification technique that allows characterization of the different geometric errors of a machine tool (MT) depending on its kinematic chain and geometry through a kinematic model, this paper investigates the influence of measurement tools and techniques available on the final accuracy of the MT. Volumetric verification based on a laser tracker (LT) relates the coordinates of the tool with the coordinates of the LT, including it into the kinematic model. Using a non-lineal optimization process, approximation functions that characterize the joint influence of MT geometric errors are obtained. However, measurement data will be affected by previous compensation of the MT, the accuracy of the measurement system, LT measurement technology, the type of retroreflector used, and techniques used to improve data accuracy, among other sources of errors. This paper studies the adequacy of different commercial alternatives such as: retroreflectors, LTs from different manufacturers, etc., that can be applied in MT verification using a long-range MT. As the accuracy is strongly affected by the uncertainty of its angular encoders, the multilateration technique tries to improve data accuracy using only LT radial information. Nonetheless, a new bundle adjustment which uses radial and angular information is presented in current metrology software. This paper studies both techniques and analyzes their adequacy for MT verification too.

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“…Kinematic model of CMMs developed and evaluated by Barakat et al [36] can also be utilized to compensate for geometric errors as well as improve volumetric performance of CMMs. Similarly, Schwenke et al [37] presented a method to outline geometric errors of CMMs using single tracking interferometer. This approach provided several benefits such as no requirement of device alignment, unlimited maximum size of working volume, simple data structure, etc.…”

Section: -P4mentioning

confidence: 99%

New developments in coordinate measuring machines for manufacturing industries

Mian

Al-Ahmari

2014

Int. J. Metrol. Qual. Eng.

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Abstract. There have been substantial improvements in measurement systems in order to meet fluctuating market demands. This rapid change and development in measurement technology has primarily been governed by demands of accuracy and precision from aerospace, automotive and other manufacturing industries. Coordinate measuring machines (CMMs) available with different technologies and configurations has efficiently been fulfilling customer demands for more than a decade. Though, current CMMs can meet needs of rapid and increased demands of customers to a greater extent but still there is lot of scope for improvement and development in CMMs. The globalization of manufacturing has resulted in development of variety of complex products and miniaturization of mechanical components. The technology of micro/nanoscale 3D measurement is still a bottleneck for industries. Therefore, precise and accurate system which is flexible enough to deal with complexities of parts and micro & nano range products has to be investigated. In this paper, comprehensive review concerning CMMs with capabilities to measure micro/nano features has been presented. This work has also discussed different methods to estimate measurement uncertainty, as well as performance evaluation of CMMs. Moreover, novel concepts such as intelligent CMM, multi-sensor CMM, virtual CMM have been presented.

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Error mapping of CMMs and machine tools by a single tracking interferometer

Cited by 190 publications

References 6 publications

Traceability on Machine Tool Metrology: A Review

Traceability on Machine Tool Metrology: A Review

Adequacy of Technical and Commercial Alternatives Applied to Machine Tool Verification Using Laser Tracker

New developments in coordinate measuring machines for manufacturing industries

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