Propagation of assembly errors in multitasking machines by the homogenous matrix method

Díaz-Tena, E.; Ugalde, Unai; Lacalle, Luís Norberto López de; Iglesia, Alberto de la; Calleja, A.; Campa, Francisco J.

doi:10.1007/s00170-012-4715-x

Cited by 55 publications

(24 citation statements)

References 33 publications

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“…By assuming that all the local compliance indices are equal to 10 5 , and picking five sampling points in the workspace, the result of structural stiffness analysis is listed in Table 8 for all 15 solutions. A similar idea was presented in [29] for multitasking machines. Generally, the system stiffness should fall under the standard value of machine tools, i.e., >0.1N/nm, depending on the required accuracy.…”

Section: S/n Cad Modelmentioning

confidence: 95%

A Method for Design of Modular Reconfigurable Machine Tools

Xu¹,

Liu

et al. 2017

Machines

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Presented in this paper is a method for the design of modular reconfigurable machine tools (MRMTs). An MRMT is capable of using a minimal number of modules through reconfiguration to perform the required machining tasks for a family of parts. The proposed method consists of three steps: module identification, module determination, and layout synthesis. In the first step, the module components are collected from a family of general-purpose machines to establish a module library. In the second step, for a given family of parts to be machined, a set of needed modules are selected from the module library to construct a desired reconfigurable machine tool. In the third step, a final machine layout is decided though evaluation by considering a number of performance indices. Based on this method, a software package has been developed that can design an MRMT for a given part family.

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Section: S/n Cad Modelmentioning

confidence: 95%

A Method for Design of Modular Reconfigurable Machine Tools

Xu¹,

Liu

et al. 2017

Machines

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show abstract

“…Chen et al, [14] proposed a method for modeling and compensating the geometric error of large grinders based on the D-H method. Diaz-Tena et al [15] presented a method to estimate the geometrical accuracy of a multi-axis machines by using a homogenous matrix. Fu [16] considered the geometric meaning of perpendicularity error and improved the accuracy of five-axis machine tool geometric error by improving the D-H modeling method.…”

Section: Introductionmentioning

confidence: 99%

Geometric Error Identification and Analysis of Rotary Axes on Five-Axis Machine Tool Based on Precision Balls

Liu

et al. 2019

Applied Sciences

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This paper presents the design of a precise "ball-column" device to efficiently and accurately measure the geometric error terms of both rotary axes of the five-axis machine tool. A geometric error measurement method of spherical contact was proposed based on the influence of the geometric error term from a five-axis machine tool rotating axis on the integrated geometric error of the machine tool. A multiple degree of freedom, step-by-step contact method based on on-machine measure for measuring the spherical center point is proposed, and the solution formula of each geometric error term of the rotating axis is established, respectively. This method can identify 12 geometric errors based on the influence of one rotating axis on another rotating axis after long term operation. The spatial error field of the five-axis machine tool was constructed by analyzing the error law of the two rotating axes of machine tools based on various positions and postures. Finally, after the comparison of the experiment, the results showed that the accuracy of the developed error measurement device reached 91.8% and the detection time was as short as 30-40 min.

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“…The lack of accuracy observed in workpieces is due to several systematic machine errors: kinematic and thermally induced effects are the major contributors. The source of the kinematic errors are mainly machine tool part geometry and misalignment of the different guideways and rotary axis [1,2]. In the workshop, the direct environment of a machine tool can significantly influence the thermal behavior of its structure [3].…”

Section: Introductionmentioning

confidence: 99%

Measurement Parameters Optimized for Sequential Multilateration in Calibrating a Machine Tool with a DOE Method

et al. 2016

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Improving volumetric error compensation is one of the machine tool user's key objectives. Smart compensation is bound to calibration accuracy. Calibration quality depends largely on its setup factors. An evaluation criterion is thus required to test the quality of the compensation deduced from these setup factors. The residual error map, which characterizes post-compensation machine errors, is therefore chosen and then needs to be evaluated. In this study, the translation axes of a machine tool were calibrated with a multilateration tracking laser interferometer. In order to optimize such measurements, the residual error map was then characterized by two appliances: a laser interferometer and the tracking laser already employed for the calibration, using for that purpose the sequential multilateration technique. This research work thus aimed to obtain a smart setup of parameters of machine tool calibration analyzing these two residual error maps through the Design Of Experiment (DOE) method. To achieve this goal, the first step was to define the setup parameters for calibrating a compact machine tool with a multilateration tracking laser. The second step was to define both of the measurement processes that are employed to estimate the residual error map. The third step was to obtain the optimized setup parameters using the DOE method.

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Propagation of assembly errors in multitasking machines by the homogenous matrix method

Cited by 55 publications

References 33 publications

A Method for Design of Modular Reconfigurable Machine Tools

A Method for Design of Modular Reconfigurable Machine Tools

Geometric Error Identification and Analysis of Rotary Axes on Five-Axis Machine Tool Based on Precision Balls

Measurement Parameters Optimized for Sequential Multilateration in Calibrating a Machine Tool with a DOE Method

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