Research on the Maintenance Strategy of CNC Machine Tool

Zhang, Aofu; Cui, Lirong; Zhang, Pu

doi:10.1007/978-3-642-40072-8_58

Cited by 3 publications

(4 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…was established using Eq. (25). Subsequently, the product-sum-gravity method was used to calculate the weight of each index using Eqs.…”

Section: Subjective Weightingmentioning

confidence: 99%

“…However, the reliability index used in traditional FMECA methods is limited and incomplete. For heavy-duty machine tools, complex maintenance is required when failure occurs; therefore, the maintenance time and maintenance cost incurred during usage are non-negligible in FMECA [25]. Otherwise, the weakest subsystem of the heavy-duty machine tool determined by the traditional FMECA method will be inaccurate.…”

Section: Introductionmentioning

confidence: 99%

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Weakness Ranking Method for Subsystems of Heavy-Duty Machine Tools Based on FMECA Information

Yang

Guo

Tian

et al. 2021

Chin. J. Mech. Eng.

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Heavy-duty machine tools are composed of many subsystems with different functions, and their reliability is governed by the reliabilities of these subsystems. It is important to rank the weaknesses of subsystems and identify the weakest subsystem to optimize products and improve their reliabilities. However, traditional ranking methods based on failure mode effect and critical analysis (FMECA) does not consider the complex maintenance of products. Herein, a weakness ranking method for the subsystems of heavy-duty machine tools is proposed based on generalized FMECA information. In this method, eight reliability indexes, including maintainability and maintenance cost, are considered in the generalized FMECA information. Subsequently, the cognition best worst method is used to calculate the weight of each screened index, and the weaknesses of the subsystems are ranked using a technique for order preference by similarity to an ideal solution. Finally, based on the failure data collected from certain domestic heavy-duty horizontal lathes, the weakness ranking result of the subsystems is obtained to verify the effectiveness of the proposed method. An improved weakness ranking method that can comprehensively analyze and identify weak subsystems is proposed herein for designing and improving the reliability of complex electromechanical products.

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“…was established using Eq. (25). Subsequently, the product-sum-gravity method was used to calculate the weight of each index using Eqs.…”

Section: Subjective Weightingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Weakness Ranking Method for Subsystems of Heavy-Duty Machine Tools Based on FMECA Information

Yang

Guo

Tian

et al. 2021

Chin. J. Mech. Eng.

View full text Add to dashboard Cite

show abstract

“…Since then, the production and CNC rate of machine tools have increased year by year. The CNC rate of machine tools has increased from 15.2% in 2006 to 40.1% in 2017, the specific data are shown in Table 6 [31].…”

Section: Plos Onementioning

confidence: 99%

The remanufacturing evaluation for feasibility and comprehensive benefit of retired grinding machine

Ling

2020

PLoS ONE

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Grinding is the last and most important process of parts processing, the purpose is to achieve high precision and surface roughness. Therefore, grinding machine has the characteristics of high added value, high technology content and great remanufacturing value. However, the evaluation of machine tool remanufacturing is based on imprecise and fuzzy information at present. The aim of this study is to present the remanufacturing evaluation for feasibility and comprehensive benefit of retired grinder. Firstly, according to the unique structure of grinder, the feasibility evaluation model of grinder remanufacturing is established, including technical feasibility criterion, economic feasibility criterion and resource environment feasibility criterion. Secondly, the comprehensive benefit evaluation model of remanufacturing grinder is established, in which the weight of each evaluation criterion is determined by Analytic Hierarchy Process (AHP). Finally, combined with the remanufacturing case of the cylindrical grinder, the evaluation method is verified and analyzed. The results show that the remanufacturing of the waste grinding machine through the feasibility evaluation can obtain better comprehensive benefits, and the remanufacturer can get considerable benefits and reduce the potential risks in the remanufacturing process.

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“…Tool monitoring technology. The establishment of tool condition monitoring system, using sensor to pick up variety signal during the cutting process, such as cutting force, vibration, power, acoustic emission and the current signal, to realize the monitoring of the tool [3]. Alberto JoseAlvares developed remote monitoring system using the two kit of system on FANUC18i lathe, as shown in Figure 1 [4].…”

Section: Cnc Equipment State Monitoring and Intelligent Maintenance R...mentioning

confidence: 99%

The Digital Manufacturing Equipment and Development of High Speed and High Precision with Monitoring and Intelligent Maintenance

Liu

Dong

Wang

et al. 2016

KEM

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With the development of science technology in aerospace, automobile and ship, energy and military, the product parts space type face increasingly complex and surface quality requirements more stringent. So there are higher requirements to the digital manufacturing equipment to realize high speed and high precision machining. This paper summary the related research in condition monitoring, remote control, fault diagnosis and intelligent maintenance, and based on the lack of monitoring and diagnosis technology of whole life cycle, unperfected quality control technique, the lower intelligent level in the current equipment, it establish full range monitoring and the whole life cycle of the intelligent maintenance system and present fault diagnosis, control and maintenance solutions for the whole life cycle, and point out the new development direction of the integrated monitoring and intelligent maintenance in CNC equipment.

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Research on the Maintenance Strategy of CNC Machine Tool

Cited by 3 publications

References 5 publications

Weakness Ranking Method for Subsystems of Heavy-Duty Machine Tools Based on FMECA Information

Weakness Ranking Method for Subsystems of Heavy-Duty Machine Tools Based on FMECA Information

The remanufacturing evaluation for feasibility and comprehensive benefit of retired grinding machine

The Digital Manufacturing Equipment and Development of High Speed and High Precision with Monitoring and Intelligent Maintenance

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