Tool wear image on-machine detection based on trajectory planning of 6-DOF serial robot driven by digital twin

Xia, Wei; Liu, Xianli; Yue, Caixu; Li, Hengshuai; Li, Rongyi; Wei, Xudong

doi:10.1007/s00170-023-11016-w

Cited by 6 publications

(3 citation statements)

References 27 publications

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“…Zhang et al [155] proposed a framework for model updating based on DTs, which is used to obtain an accurate tool wear model for predicting and managing machining processes. Xia et al [156] presented a kinematic model and trajectory planning method for the UR10 robot by establishing a DT unit in the inspection system. The authors utilized Unity3D software to create the DT environment for the inspection system.…”

Section: Applications In Machiningmentioning

confidence: 99%

Digital Twins Enabling Intelligent Manufacturing: From Methodology to Application

Hu,

Li,

et al. 2024

Intelligent and Sustainable Manufacturing

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Digital twin technology develops virtual models of objects digitally, simulating their real-world behavior based on data. It aims to reduce product development cycles and costs through feedback between the virtual and real worlds, data fusion analysis, and iterative decision-making optimization. Traditional manufacturing processes often face challenges such as poor real-time monitoring and interaction during machining, difficulties in diagnosing equipment failures, and significant errors in machining. Digital twin technology offers a powerful solution to these issues. Initially, a comprehensive review of the research literature was conducted to assess the current research scope and trends. This was followed by an explanation of the basic concepts of digital twins and the technical pathway for integrating digital twins into intelligent manufacturing including outlining the essential technologies for creating a system of interaction between the virtual and real worlds, enabling multimodel fusion, data sensing, algorithm-based prediction, and intelligent decision-making. Moreover, the application of digital twins in intelligent manufacturing throughout the product life cycle was detailed, covering product design, manufacturing, and service stages. Specifically, in the manufacturing phase, a model based on heat conduction theory and visualization was used to construct a time-varying error model for the motion axis, leading to experiments predicting the time-varying error in the hole spacing of a workpiece. These experiments achieved a minimum prediction error of only 0.2 μm compared to the actual error. By compensating for time-varying errors in real time, the variability in the hole spacing error decreased by 69.19%. This paper concludes by summarizing the current state of digital twins in intelligent manufacturing and projecting future trends in key technologies, application areas, and data use, providing a basis for further research.

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Section: Applications In Machiningmentioning

confidence: 99%

Digital Twins Enabling Intelligent Manufacturing: From Methodology to Application

Hu,

Li,

et al. 2024

Intelligent and Sustainable Manufacturing

View full text Add to dashboard Cite

show abstract

“…Let T 0 denote the homogeneous transformation matrix of the base coordinate, and T 1 , T 2 and T 3 respectively represent the homogeneous transformation matrix of each connecting rod. Then, the homogeneous transformation matrix of adjacent connecting rod coordinate system obtained from the rigid body attitude transformation theory is [14]…”

Section: Motion Analysis Of Profiling Mechanismmentioning

confidence: 99%

“…After simplifying (14), the total potential energy of the system expressed in generalized coordinates can be expressed as:…”

Section: A Dynamic Analysismentioning

confidence: 99%

Structure Design and Simulation Test of Water Jet Grassland Root-Cutting Machine

et al. 2023

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Root-cutting is one of the effective methods to improve degraded grassland. It mainly increases the contact area between roots and oxygen by cutting off the transverse roots of vegetation inside the soil, and thus achieve the purpose of restoring growth. However, the hanging cutter head root-cutting method commonly used at present has the problems of large cutting resistance and high soil disturbance rate during operation. Therefore, a water jet grassland root-cutting machine is designed to improve the shortcomings of the previous method. This method does not need to go deep into the soil and is not affected by the internal resistance of the soil, and the water flow has a positive recovery effect on the grassland, paying more attention to the environmental awareness of the grassland. For the design of this machine, the structure and working principle of it is overall structure and key components are analyzed. The motion attitude of the profiling mechanism was analyzed by modified D-H (MDH) method. The dynamic model of the root-cutting machine and the obstacle avoidance model of the profiling mechanism were established by Lagrange function. With the help of MATLAB/Simulink components, the operation process of the root-cutting machine in different ground was simulated. Results showed: In the process of root-cutting operation, the water jet grassland root-cutting machine has a good adaptability in sinusoidal ground and irregular smooth ground. In the ground environment of sharp mutation, it can satisfy the adaptability to the ground through the obstacle avoidance operation of the profiling mechanism. The water jet grassland root-cutting machine designed in this paper can improve the efficiency of grassland restoration and meet the stability requirements of operation in different terrains.INDEX TERMS Dynamics, profiling mechanism, root-cutting machine, structural design, SimMechanics.

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A digital twin-based machining motion simulation and visualization monitoring system for milling robot

Zhu

Lin

Huang

et al. 2023

Int J Adv Manuf Technol

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Tool wear image on-machine detection based on trajectory planning of 6-DOF serial robot driven by digital twin

Cited by 6 publications

References 27 publications

Digital Twins Enabling Intelligent Manufacturing: From Methodology to Application

Digital Twins Enabling Intelligent Manufacturing: From Methodology to Application

Structure Design and Simulation Test of Water Jet Grassland Root-Cutting Machine

A digital twin-based machining motion simulation and visualization monitoring system for milling robot

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