Structural Design and Optimization of a 3-Axis Miniaturized Machine Tool with High Precision Positioning Stages

Lee, J.H.; Wang, Wei; Kweon, Sung Hwan; Kim, Young S.; Lee, Young Moo; Yang, Sung-Byung

doi:10.4028/0-87849-430-8.321

Cited by 2 publications

(2 citation statements)

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“…For questions 2 to 4, although there are a lot of researches have been done for machine tool or mechanism design [14][15][16][17][18][19][20][21][22][23][24][25][26][27][28], but almost no satisfactory solutions can be found for universal and practical function design of WEDM machines. A generative design method was introduced in [29] and used for a lathe design, which gave reasonable and intuitionistic answers to the second question.…”

Section: Introductionmentioning

confidence: 99%

Tool fabrication system for micro/nano milling—function analysis and design of a six-axis Wire EDM machine

Cheng

Wang

Kobayashi

et al. 2009

Int J Adv Manuf Technol

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The dies or molds used for the fabrication of micro products usually are made of ultra-hard materials such as tungsten carbide or silicon carbide and have sophisticated three-dimensional geometries. Such kind of dies or molds can only be fabricated by milling operations instead of grinding processes with ultra-hard milling tools made of PCD or CBN. Electrical discharge machining (EDM) is a good choice for the fabrication of such ultrahard tools. In this paper, a function analysis and design of a six-axis Wire EDM (WEDM) machine is introduced. Based on the typical micro/nano cutting tool geometry features, a mathematical model between the cutting tool and the electrode wire is built. Then, the mathematical model is analyzed and it turns out that six axes are needed for cutting such complicated tool geometries. According to the WEDM features, first the axes are allocated to the workpiece side and the electrode wire side. The workpiece is assigned three linear motions and one rotary motion around its center line and the wire has two rotary motions. Second, the axis sequences are defined. At last, the best concept of the mechanical structure for the six-axis WEDM machine is selected.

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Section: Introductionmentioning

confidence: 99%

Tool fabrication system for micro/nano milling—function analysis and design of a six-axis Wire EDM machine

Cheng

Wang

Kobayashi

et al. 2009

Int J Adv Manuf Technol

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“…The finite element method and its software themselves can't solve the issues of joints; and the basic data for joints are not systemic and complete. As the action mechanism of a joint is very complex, and most of that are nonlinear factors, a lot of aspects so far still need studying such as the action mechanism, experimental method, testing technology, expressing way of features, and application in the overall modeling of joints, etc [5]~ [16] . The paper essentially studies the dynamic features and their expressing way for the joints, the theory and method for merging the dynamic features of the joints in the overall modeling of mechanical structures, as well as verifies the effectiveness of the presented theory and method by a typical example.…”

Section: Introductionmentioning

confidence: 99%

Characteristic parameters of machine joints and the technology for applying them in overall modeling

Zhao¹,

Zhi-heng²,

Zhang³

et al. 2009

International Technology and Innovation Conference 2009 (ITIC 2009)

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There are various forms of joints in a machine tool, which have a high influence on the whole machine's static and dynamic behavior. Therefore the effect of the joints' features must be taken into consideration when establishing the overall kinetic model of a machine tool. Based on the forms of typical joints, the factors influencing the joint features are analyzed, and are classified into the factor of material, structure and application conditions; the expressing methods of the characteristic parameters for joints are presented for different sections based on the experimental results of joint features. During the establishment of the overall model for the machine, the characteristic parameters of joints are taken as known conditions, are equivalent to the connection rigidity and connection damp between structures, and added into the rigidity matrix and damp matrix of the dynamics model. The overall dynamics model of the machine generated therefrom covers the features of joints, and can more accurately predict the static and dynamic behavior of the whole machine. The correctness and effectiveness of the method is verified by the modeling and calculation of XK712B vertical boring and milling machine and comparing with the experimental results. With the method, it is possible to predict the static and dynamic behavior of the whole machine at the phase of drawing design.

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Structural Design and Optimization of a 3-Axis Miniaturized Machine Tool with High Precision Positioning Stages

Cited by 2 publications

References 0 publications

Tool fabrication system for micro/nano milling—function analysis and design of a six-axis Wire EDM machine

Tool fabrication system for micro/nano milling—function analysis and design of a six-axis Wire EDM machine

Characteristic parameters of machine joints and the technology for applying them in overall modeling

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