A New Kinematic Model of Portable Articulated Coordinate Measuring Machine

Hu, Zhao; Yu, Liandong; Jia, Huakun; Li, Weishi; Sun, Jingqi

doi:10.3390/app6070181

Cited by 11 publications

(4 citation statements)

References 25 publications

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“…A large number of articles considered optimizing the AACMM calibration model. Zhao et al [22] proposed a new geometrical model for AACMM structure that eliminates the inadequacies of the D-H convention in singular joint positions. The generalized geometric error parameters of the AACMM are optimized by the Levenberg-Marquardt (L-M) algorithm in the article.…”

Section: Related Workmentioning

confidence: 99%

Rapid and robust on-site evaluation of articulated arm coordinate measuring machine performance

Asmai

Hennebelle

Coorevits

et al. 2018

Meas. Sci. Technol.

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This paper proposes a quick and efficient methodology of uncertainty estimation on measurement results provided by an articulated arm coordinate measuring machine (AACMM). The methodology is highly adapted to industrial applications—a frequent use of these devices—but can also be performed in laboratories. The study stems from an actual need among coordinate measuring arm users to estimate the uncertainty associated with their equipment in specific conditions on the shop floor. It is important to mention that no simple and quick test exists currently to estimate the measurement uncertainty of results obtained with an AACMM in the conditions of the measurement site. In fact, the guidelines and studies addressing measuring machines propose protocols to verify performance or to evaluate uncertainties associated with measurement results, but these protocols are laboratory-type tests (carried out after purchase, re-calibration, etc) and usually take hours to complete.

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Section: Related Workmentioning

confidence: 99%

Rapid and robust on-site evaluation of articulated arm coordinate measuring machine performance

Asmai

Hennebelle

Coorevits

et al. 2018

Meas. Sci. Technol.

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“…However, due to the limitation of the gauge, only the length of a single plane can be obtained. Zhao [29] designed the calibration piece with three tapered holes, which can measure three different lengths. The calibration piece can realize the change of height and spatial position.…”

Section: Introductionmentioning

confidence: 99%

Research on the calibration method of a new multifunctional calibrator based on AACMM

Huang

Chen

et al. 2021

Meas. Sci. Technol.

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Calibrators can effectively improve the calibration accuracy of articulated coordinate measuring machine (AACMM). However, the traditional calibration method of a calibrator is usually cumbersome. To study the influence of sampling strategies of various calibration methods on the calibration effect of AACMM, we design a new multifunctional calibrator for AACMM kinematics parameters, and propose three calibration methods with high accuracy and high efficiency. In the multifunctional calibrator, 84 different calibration points are provided by changing the rotation angle of calibration bar and the inclination angle of calibration plate. Compared with previous calibrators, the calibrator can obtain more positions and directions. The length calibration, multi-point calibration and virtual center distance calibration methods are proposed to calibrate kinematic parameter of AACMM. In addition, the sampling strategy for the three calibration methods is explored. Finally, the consistency of single-axis coordinate measurement is verified based on the three calibration methods. The results show that the three calibration methods can effectively improve the measurement accuracy of AACMM. Especially, the length calibration method has the highest accuracy of the three methods. The multi-point calibration method can significantly improve the calibration efficiency.

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“…Cheng et al [8] compared the nonlinear least method, genetic algorithm method, and simulated annealing method. Experimental results show that nonlinear least square method is very suitable for parameter identification of AACMM and is widely used [10][11][12][13]16]. The sampled data was processed for the exclusion of rough error [11].…”

Section: Introductionmentioning

confidence: 99%

Design and Validation of a Self-Driven Joint Model for Articulated Arm Coordinate Measuring Machines

Huang

et al. 2019

Applied Sciences

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Articulated arm coordinate measuring machines (AACMMs) have been developed and applied in industrial measurement fields for more than 30 years. Manual operation is typically required during measurement, which introduces uncertain influences, such as fluctuation of measurement force, speed, and acceleration, and leads to poor reliability and reproducibility. In this paper, a novel self-driven joint model is proposed to realize automatic measurement for AACMMs. A self-driven joint is designed by combining the joint of an AACMM with a robotic arm to realize automatic rotation. A self-driven AACMM is designed using three rolling joints and three pitching joints with assigned parameters. A virtual prototype of the self-driven AACMM is established using the Adams software to simulate the driving moment of each joint. The simulation results demonstrate that the designed mechanical structure and selected devices can meet the preset requirements. Additionally, based on the proposed model, a single physical joint is developed and assembled for performance testing. Experimental results demonstrate that the model can achieve a repeatability of 1.39″ (k = 2) when the rotational velocity is less than 1.53 rad/s. Therefore, the proposed design is suitable for use in AACMMs.

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A New Kinematic Model of Portable Articulated Coordinate Measuring Machine

Cited by 11 publications

References 25 publications

Rapid and robust on-site evaluation of articulated arm coordinate measuring machine performance

Rapid and robust on-site evaluation of articulated arm coordinate measuring machine performance

Research on the calibration method of a new multifunctional calibrator based on AACMM

Design and Validation of a Self-Driven Joint Model for Articulated Arm Coordinate Measuring Machines

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