Assessing geometrical errors of multi-axis machines by three-dimensional length measurements

Florussen, Ghj Guido; Delbressine, Flm Frank; Molengraft, van de Mjg René; Schellekens, Phj Piet

doi:10.1016/s0263-2241(01)00016-1

Cited by 77 publications

(46 citation statements)

References 7 publications

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“…Dokładność i powtarzalność pozycjonowania zespołów obrotowych jest zatem bardzo istotnym czynnikiem oceny obrabiarki CNC i poprawy ich dokładności [1][2]. Okazuje się, że błędy obrabiarki wynikają z niedokładności geometrycznej elementów składowych układu OUPN, zmian temperatury ich pracy (wskutek tarcia zewnętrznego i wewnętrznego, powodując odkształcenia cieplne układu OUPN), odkształceń sprężystych elementów obrabiarki i narzędzi (wskutek obciążeń występujących w procesie skrawania) oraz nastaw układów sterowania z uwzględnieniem zmienności charakteru pracy napędów [3][4][5][6][7][8][9][10][11][12][13].…”

Section: Wstępunclassified

Analysis of CNC machine tool volumetric and rotary axis centre positional errors

Jóźwik¹,

Byszewski²

2015

Mechanik

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BADANIE DOKŁADNOŚCI POZYCJONOWANIA OSI OBROTOWYCH WIELOOSIOWYCH OBRABIAREK CNC ORAZ BŁĘDÓW WOLUMETRYCZNYCHW pracy przedstawiono metody i urządzenia pomiarowe oraz diagnostyczno -kalibracyjne osi obrotowych i błędów wolumetrycznych obrabiarek sterowanych numerycznie CNC. W szczególności omówiono takie systemy jak: AxiSet™ Check-Up, kalibrator osi obrotowych XR-20 oraz LaserTRACER i LaserTRACER-MT. Przedstawiono metody pomiaru osi obrotowych za pomocą zewnętrznych urządzeń pomiarowych, takich jak np. interferometr laserowy z przystawką do pomiarów osi obrotowych XR-20, jak również metody polegające na pomiarze wzorca za pomocą wewnątrzobrabiarkowych systemów pomiarowych (sond pomiarowych). ANALYSIS OF CNC MACHINE TOOL VOLUMETRIC AND ROTARY AXIS CENTRE POSITIONAL ERRORSThe following paper presents methods and equipment for the measurement, monitoring and calibration of CNC machine tool rotary axis and volumetric errors. A detailed analysis of three measuring systems was conducted: AxiSet™ Check-Up, XR-20 rotary axis calibrator, LaserTRACER and LaserTRACER-MT. The paper presents rotary axis measurement with tools for conducting external measurements, e.g. the combination of XR20 and a laser interferometer, and methods consisting in master ball displacement evaluation.

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Section: Wstępunclassified

Analysis of CNC machine tool volumetric and rotary axis centre positional errors

Jóźwik¹,

Byszewski²

2015

Mechanik

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“…This illustrates the simplest form of kinematic model identification by indirect measurement. The identification of the kinematic model based on circular tests have been presented in [38][39][40][41][42].…”

Section: Circular Testsmentioning

confidence: 99%

Indirect Measurement of Volumetric Accuracy for Three-Axis and Five-Axis Machine Tools: A Review

Ibaraki¹,

Knapp²

2012

Int. J. Automation Technol.

226

100

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The volumetric accuracy of machine tools is represented by a map of position and orientation error vectors of the tool over the volume concerned. Numerical compensation for volumetric error is possible in many latest commercial CNCs for machine tools. This paper reviews indirect measurement schemes for machine tool kinematics, in which the tool center position is measured as the superposition of error motions of linear or rotary axes. Each error motion can be separately identified by best-fitting a set of measured tool center positions to the kinematic model of machine tools. Indirect measurement schemes for the kinematics of three orthogonal linear axes, as well as the fiveaxis kinematics with two rotary axes, will be reviewed.

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“…Each such machine is tested and checked before it arrives at the customer's. Both contact and noncontact methods are used in tests [1][2][3][4][5][6][7][8][9][10]. Frequently, some of the measured errors need specialist testing methods, and in general, these are non-contact interferometric methods.…”

Section: Introductionmentioning

confidence: 99%

“…The fundamental limitation of the stationary interferometric methods in the machine measurements is the considerable time amount needed to set the interferometer's optics, especially for the machines of a tooling range over a few meters. The possibility of measuring the whole tooling axis and obtaining error information at the full range motion [1][2][3][4][5] constitutes an undisputable advantage. The second group of diagnostic tools are the tools based on contact measurements.…”

Section: Introductionmentioning

confidence: 99%

Diagnostic of CNC Lathe With Qc 20 Ballbar System

Jóźwik¹,

Semotiuk²,

Kuric³

2015

Adv. Sci. Technol. Res. J.

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This paper presents the evaluation of the influence of the feedmotion speed on the value of selected geometric errors of CNC lathe CTX 310 eco by DMG, indentified by QC 20 Ballbar system. Diagnostically evaluated were: the deviation of the axis squareness, reversal spike, and backlash. These errors determine the forming of the dimensional and shape accuracy of a machine tool. The article discusses the process of the CNC diagnostic test, the diagnostic evaluation and formulates guidelines on further CNC operation. The results of measurements were presented in tables and diagrams.

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Assessing geometrical errors of multi-axis machines by three-dimensional length measurements

Cited by 77 publications

References 7 publications

Analysis of CNC machine tool volumetric and rotary axis centre positional errors

Analysis of CNC machine tool volumetric and rotary axis centre positional errors

Indirect Measurement of Volumetric Accuracy for Three-Axis and Five-Axis Machine Tools: A Review

Diagnostic of CNC Lathe With Qc 20 Ballbar System

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