• Title/Summary/Keyword: Automatic Tool Changer

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The Technical Trend and Future Development Direction of Machine Tools Automatic Tool Changer by Patent Mapping (특허분석을 통한 공작기계 자동공구교환장치의 기술 현황과 발전방향)

  • Kim, Dong Hyeon;Chee, Hyun Su;Lee, Choon Man
    • Journal of the Korean Society for Precision Engineering
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    • v.30 no.3
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    • pp.266-270
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    • 2013
  • Automatic tool changer(ATC) is typically provided to a machine tool to improve the efficiency of the machine tool significantly by saving time in moving, switching, installing and storing tools as well as adjusting a calibrating the machine tool. In this study, technical trend of machine tools automatic tool changer are analyzed by patent mapping. And future development direction of automatic tool changer has suggested. The analysis is carried out by using problem solution map for the applied patent during 2000 and 2010 in USA, Japan, Europe and Korea.

Development of Automatic Tool Changer with Servo-Motor (서보모터를 이용한 자동공구교환장치의 개발)

  • Ko, Jeong-Han;Kang, Ki-Young;Lee, Sang-Jo
    • Journal of the Korean Society for Precision Engineering
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    • v.16 no.5 s.98
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    • pp.66-73
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    • 1999
  • To enhance machining efficiency, tool exchange time have to be reduced. Most automatic tool changer is made up of compound cam and motor. it is not easy to design and manufacture compound cam, and it has no flexibility. But if servo motor is used, it is easy to changer is developed with servo motor, clutch, ball-screw and spline nut. Experimental results show that automatic tool changer designed with servo motor have good faculties.

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A study on the Development of Tower Type Automatic Tool Changer (타워식 자동 공구 교환장치의 개발에 관한 연구)

  • Roh Y.H.;Lim S.H.;Lee C.M.
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 2006.05a
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    • pp.341-342
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    • 2006
  • This study is concerned about the development of tower type automatic tool changer. The tower type automatic tool changer is developed to reduce stand-by time by shortening tool change time. The developed system can store more number of tools in small space. A structural analysis for the machine is carried out to check the machine design using commercial software, CATIA V5. In the result of structural analysis, the safety of the developed system is confirmed.

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A Study on the Development of Fixed Address Type Automatic Tool Changer (고정번지식 ATC개발에 관한 연구)

  • 이춘만;허영진
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 2002.10a
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    • pp.1015-1018
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    • 2002
  • Recently, many studies have been undergoing to reduce a working time in a field of machine tool. There are two ways of reducing a working time; to reduce an actual working time by heighten a speed of spindle and to reduce a stand-by time by shortening a tool exchanging time. ATC(Automatic Tool changer) belongs to the latter case. Fixed address type ATC that is being developed ill this study can store more number of tool in small space than magazine transfer type ATC relatively as well as shorten tool exchanging time. In this study, a simplified equivalent model of finite element method in order to analyze structure of fixed address type ATC.

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Development of Automatic Tool Changer of SMA Tool Holder (SMA를 이용한 공구홀더의 자동공구교환장치 개발)

  • Lee, Sungcheul;Ro, Seung-Kook;Park, Jong-Kweon
    • Journal of the Korean Society of Manufacturing Technology Engineers
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    • v.25 no.1
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    • pp.1-6
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    • 2016
  • Micromanufacturing is a useful system for reducing energy consumption. For micromanufacturing, tool clamping and workpiece clamping are important components to realize the machining process. Therefore, a shape memory alloy (SMA) ring type tool holder is developed. In addition, this holder needs cooling and heating processes to execute the tool clamping process. This study suggests a cooling/heating device based on peltier elements. The device will be applied to the heating/cooling process of an automatic tool changer (ATC) for the SMA tool holder. This study introduces the configuration and operating principle of the proposed ATC system. The description and prototype evaluation of this system were given. Plastic bolt and aluminum block were selected to enhance the cooling performance, and the installed tool was changed in 17 s during the experiments.

Study of 4-Axis Machining for Ball Gear Cam (볼기어캠의 4-축 가공에 관한 연구)

  • Cho, Hyun-Deog;Shin, Yong-Bum
    • Journal of the Korean Society of Manufacturing Process Engineers
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    • v.18 no.9
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    • pp.81-87
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    • 2019
  • The automatic tool changer of a machining center consists of a tool magazine and a cam box, and the core components of the cam box are a roller gear cam and a turret. Recently, the roller gear cam of a cam box has been replaced by a ball gear cam. In this study, the design and machining method of ball gear cam for an automatic tool changer was studied. Additionally, an algorithm for a 4-axis post processing method was established from an instrumental formula by designing a ball gear cam, thus preventing machining at the bottom of ball end mill and enabling the ball on the turret to be driven at the entrance and exit of a curve without collision due to machining errors. In conclusion, machining using only the 4-axis method including the C-axis on a BC -Type 5-axis machine produced the desired ball gear cam.

A Development of Fixed Address Type Automatic Tool Change System for Machine Tool (공작기계용 고정번지식 자동 공구교환 시스템 개발)

  • 이춘만;허영진
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 2003.06a
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    • pp.1150-1153
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    • 2003
  • Recently, Many studies have been undergoing to reduce a working time in a field of machine tool. There are two ways of reducing working time; to reduce actual working time by heighten spindle speed and to reduce stand-by time by shortening tool exchange time. Automatic tool change system belongs to the latter case. Fixed address type automatic tool change system that is being developed in this study can store more number of tool in small space than magazine transfer type automatic tool changer as well as shorten tool exchange time. In this paper, a simplified equivalent model of finite element method in order to analyze frame structure of fixed address type automatic tool change system is presented.

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A Study on Shape Design Approach of Cylindrical Cam for Automatic Tool Changer Using Relative Velocity (상대속도를 이용한 자동공구교환장치용 원통 캠의 형상 설계에 관한 연구)

  • Kim, S.W.;Shin, J.H.;Kang, D.W.;Chang, S.W.
    • Proceedings of the KSME Conference
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    • 2000.11a
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    • pp.813-817
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    • 2000
  • Cam mechanism is one of the common devices used in many automatic machinery. Specially cylindrical cam generates three dimensional motions. Thus, the shape design procedure must have high accuracy. This paper proposes the shape design procedure for a cylindrical cam and follower mechanism using a relative velocity method. The relative velocity method and coordinate transformation are used to find a contact point between cam and follower. Also, the full shape of the cylindrical cam can be generated by using the geometric relationships and the contact constraints. As a result, this paper presents an example for the sape design of the cylindrical cam in order to prove the accuracy of the design procedures.

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A Study on the Design and Structural analysis of High Integrated Tool Tower ATC for Machine Tool (공작기계용 고 집적형 Tool Tower ATC 설계 및 구조 해석에 관한 연구)

  • Lee C.M.;Lim S.H.;Roh Y.H.
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 2005.10a
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    • pp.551-554
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    • 2005
  • This study is concerned about the design and structural analysis of high integrated tool tower ATC(Automatic Tool Changer) for machine tool. Recently, many studies have been undergoing to reduce a working time in a field of machine tool. Tool tower ATC belongs to reduce a stand-by time by shortening a tool exchanging time. The developed system can store more number of tool in small space than other machine. The analysis is carried out by CATIA V5 software. In the result of structural analysis, the safety factor of the developed system is confirmed.

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