Measure dimension of rotating large hot steel shell using pulse laser on PRRR robot

He, Jun; Gao, Feng; Wu, Shiquan; Liu, Renqiang; Zhao, Xin

doi:10.1016/j.measurement.2012.04.001

Cited by 23 publications

(8 citation statements)

References 10 publications

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“…In 2012, Jun He et al [ 16 ] used a double PRRR robot system to measure a hot metal shell with sensors in a polar coordinate system. By adjusting the rotating platform to make the laser scanning plane perpendicular to the cylindrical axis, the system can adopt the circular fitting method to make the measurement results more accurate.…”

Section: Laser Scanning Measurement Methodsmentioning

confidence: 99%

Three-Dimensional Morphology and Size Measurement of High-Temperature Metal Components Based on Machine Vision Technology: A Review

Wen

Wang

Zhang

et al. 2021

Sensors

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The three-dimensional (3D) size and morphology of high-temperature metal components need to be measured in real time during manufacturing processes, such as forging and rolling. Since the surface temperature of a metal component is very high during the forming and manufacturing process, manually measuring the size of a metal component at a close distance is difficult; hence, a non-contact measurement technology is required to complete the measurement. Recently, machine vision technology has been developed, which is a non-contact measurement technology that only needs to capture multiple images of a measured object to obtain the 3D size and morphology information, and this technology can be used in some extreme conditions. Machine vision technology has been widely used in industrial, agricultural, military and other fields, especially fields involving various high-temperature metal components. This paper provides a comprehensive review of the application of machine vision technology in measuring the 3D size and morphology of high-temperature metal components. Furthermore, according to the principle and method of measuring equipment structures, this review highlights two aspects in detail: laser scanning measurement and multi-view stereo vision technology. Special attention is paid to each method through comparisons and analyses to provide essential technical references for subsequent researchers.

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Section: Laser Scanning Measurement Methodsmentioning

confidence: 99%

Three-Dimensional Morphology and Size Measurement of High-Temperature Metal Components Based on Machine Vision Technology: A Review

Wen

Wang

Zhang

et al. 2021

Sensors

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“…e structure of the optimized charging manipulator is shown in Figure 9. It mainly included a cylinder (1), five hinges (10), two big arms (6), two small arms (7), two wrist joints (8), a V-shaped finger (11), and two U-shaped fingers (9). It had four columns (3), two upper beams (2), and two bottom beams (4).…”

Section: Optimized Charging Manipulatormentioning

confidence: 99%

“…In the process of charging, bamboo was picked up by U-shaped fingers (9). Next, the sample was urged to the front of the pushing mechanism before touching V-shaped fingers (11). en, it was caught and tightly fastened between the U-shaped (9) and V-shaped fingers (11).…”

Section: Optimized Charging Manipulatormentioning

confidence: 99%

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Optimization and Experimental Study of an Intelligent Bamboo-Splitting Machine Charging Manipulator

Liu

Wen

et al. 2020

Journal of Robotics

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A nonautomatic bamboo-splitting machine must charge with material and change tools manually. However, manual charging is very dangerous. An intelligent bamboo-splitting machine can feed automatically and change tools intelligently and has broad application prospects. A charging manipulator is an important part of an intelligent bamboo-splitting machine. The size of the manipulator was optimized here using a genetic algorithm. The capture rate, centering rate, and dynamic characteristics of an intelligent bamboo-splitting machine charging manipulator, in which key factors were considered, were experimentally studied. First, three different manipulators, with arm lengths at 210, 220, and 230 mm, were developed. Then, the bamboo materials were divided into three gradients (60–85, 85–110, and 110–135 mm) according to diameter ranges. Accelerators were used to measure the manipulator arm dynamic characteristics, and a high-speed charge-coupled device was used to record the grasping process. Experimental results showed that the manipulator capture rate with an arm length of = 220 mm was as high as 100%, but that of manipulators with arm lengths of = 210 and 230 mm was 96 and 98.67%, respectively. Thus, the manipulator with a 220 mm arm length showed better performance than the other two manipulators. Trend curves of the influence of material diameter on capture time were similar to an exponential function.

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“…The measured data was fitted via using the theory of least squares in the method. 1D dimension detection model and outer diameter contour reconstruction model were established [15]. In addition, inside and outside diameters measurement model of hot forging could be constructed via the combination of laser scanning technique and infrared temperature measuring technique.…”

Section: Introductionmentioning

confidence: 99%

Online measuring method of the axial section line in ring forging process

Wang

Zhang

et al. 2018

IET Science, Measurement & Technology

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Measure dimension of rotating large hot steel shell using pulse laser on PRRR robot

Cited by 23 publications

References 10 publications

Three-Dimensional Morphology and Size Measurement of High-Temperature Metal Components Based on Machine Vision Technology: A Review

Three-Dimensional Morphology and Size Measurement of High-Temperature Metal Components Based on Machine Vision Technology: A Review

Optimization and Experimental Study of an Intelligent Bamboo-Splitting Machine Charging Manipulator

Online measuring method of the axial section line in ring forging process

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