Kinematic modeling and machining precision analysis of multi-axis CNC machine tools based on screw theory

Yang, Bin; Zhang, Genbao; Ran, Yan; Yu, Hui

doi:10.1016/j.mechmachtheory.2019.06.021

Cited by 49 publications

(19 citation statements)

References 17 publications

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“…Another possible effector which often neglected is probe hysteresis [17] and the subsequent deformation [18]. Improving machining precision has been a widely known challenge in industry as the CNC machine is composed of various moving and rotating shafts that makes machining motion complicated [19]. With regard to milling accuracy, the vibration of the mechanical bodies, sliding motion of stick, and axial motion affect precision [12].…”

Section: Introductionmentioning

confidence: 99%

“…To solve the vibration problem, a real-time resonance signal analysis coupled with online surface quality monitoring has been proposed [20]. Another study suggested kinematic modelling as a method to improve the precision of a multi axis CNC machine [19]. Analyzing the complex CNC machine motion has been one of the most important subjects in industrial machining study [19].…”

Section: Introductionmentioning

confidence: 99%

“…Another study suggested kinematic modelling as a method to improve the precision of a multi axis CNC machine [19]. Analyzing the complex CNC machine motion has been one of the most important subjects in industrial machining study [19]. Thus, when the researchers at the Research Centre for Electrical Power and Mechatronics, Indonesian Institute of Sciences (RCEPM-LIPI) developed a CNC milling machine, it is important to analyze the machine motion to measure its precision.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Three axis deviation analysis of CNC milling machine

Subagio

Subekti

Saputra

et al. 2019

J. Mechatron. Electr. Power Veh. Technol.

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The manufacturing technology has developed rapidly, especially those intended to improve the precision. Consequently, increasing precision requires greater technical capabilities in the field of measurement. A prototype of a 3-axis CNC milling machine has been designed and developed in the Research Centre for Electrical Power and Mechatronics, Indonesian Institute of Sciences (RCEPM-LIPI). The CNC milling machine is driven by a 0.4 kW servo motor with a spindle rotation of 12,000 rpm. This study aims to measure the precision of the CNC milling machine by carrying out the measurement process. It is expected that the CNC milling machine will be able toperform in an optimum precision during the manufacturing process. Accuracy level testing is done by measuring the deviations on the three axes namely X-axis, Y-axis, and Z-axis, as well as the flatness using a dial indicator and parallel plates. The measurement results show the deviation on the X-axis by 0.033 mm, the Y-axis by 0.102 mm, the Z-axis by 0.063 mm, and the flatness of the table by 0.096 mm, respectively. It is confirmed that the deviation value is within the tolerance standard limits set by ISO 2768 standard. However, the calibration is required for this CNC milling machine to achieve more accurate precision. Furthermore, the design improvement of CNC milling machine and the application of information technology in accordance with Industry 4.0 concept will enhance the precision and realibility.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Three axis deviation analysis of CNC milling machine

Subagio

Subekti

Saputra

et al. 2019

J. Mechatron. Electr. Power Veh. Technol.

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“…For more complex gears, after finishing all holes on one side of the workpiece, the housing rotates to the next position and the next group of holes is machined in the same way. Following the described machining method, it is assumed that the position of gear wheel bearing seats is mainly determined by the kinematic accuracy of the CNC machine [12]. On the other hand, the accuracy of the boring operation of the bearing seats largely determines the quality of the body and directly affects the quality of the entire aircraft transmission [11].…”

Section: Introductionmentioning

confidence: 99%

Assessment of Geometric Accuracy of a 5-axis CNC Machine in the Context of Machining Aircraft Transmission Housings

Bomba¹,

Gierlak²

2020

ujme

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This article presents a procedure whose goal was to develop an effective methodology for deploying a 5-axis milling centre in industrial conditions. The method presented in the article, based on the manufacturing of the test piece, aims to reduce the time to deploy a new machine and minimize the effort put in by technological services and maintenance during tests and the process of deploying the machine tool in production. The test piece and its position have been designed in such a way that its manufacture forces the use of complex machine movements in the extreme area of the working space. The paper presents the results of tests involving the machining of a test piece on a CNC machine, measurement of the shape and dimensional characteristics of the object using CMM and analysis of machining accuracy in the context of the use of the machine in the production of aircraft transmission bodies. The material of the test piece is the same as the material of aircraft transmission housings, i.e. aluminum alloy. The universality of presented method is due to the fact that it is independent of the size of the machine's machining space, machine kinematics and also the special functions possessed by the machine; however, it gives a representation of their operation in the form of measuring sheets from the measuring laboratory.

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“…A motion system is the motion mechanism in a servo mechanism, and motion control technology is used to achieve precise positioning or motion control. It is widely used in robotics [1,2], computer numerical control machine tools [3], and other fields [4][5][6], and it is the core subsystem in precision and ultraprecision high-end equipment [7]. e requirements for motion systems include high resolution, high precision, stability, fast response times, high bandwidth, and robustness.…”

Section: Introductionmentioning

confidence: 99%

Modal-Decomposition-Dependent State-Space Modeling and Modal Analysis of a Rigid-Flexible, Coupled, Multifreedom Motion System: Theory and Experiment

Tang

Guo

Huang

et al. 2020

Shock and Vibration

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In a multiple degrees of freedom motion system with rigid-flexible coupling, the flexible internal dynamics have a significant negative impact on performance because the degrees of freedom are coupled. Inspired by this problem, a multi-input multioutput state-space model based on modal coordinates is proposed to decouple the rigid body and flexible modes. The closed-loop subspace identification method based on orthogonal is utilized to develop an unbiased standard state-space model. Based on the similarity principle, a modal analysis method is proposed to transfer the standard state-space model to the proposed modal-decomposition-dependent state-space model. Controllability and observability criteria are met to guarantee the minimum realization of the proposed state-space model. Finally, a modeling and modal analysis experiment is conducted on a developed wafer stage of lithographic tool. The results verify the effectiveness and accuracy of the proposed modeling method, as well as the controllability and observability of the proposed model.

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Kinematic modeling and machining precision analysis of multi-axis CNC machine tools based on screw theory

Cited by 49 publications

References 17 publications

Three axis deviation analysis of CNC milling machine

Three axis deviation analysis of CNC milling machine

Assessment of Geometric Accuracy of a 5-axis CNC Machine in the Context of Machining Aircraft Transmission Housings

Modal-Decomposition-Dependent State-Space Modeling and Modal Analysis of a Rigid-Flexible, Coupled, Multifreedom Motion System: Theory and Experiment

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