• Title/Summary/Keyword: AutoLISP

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A Study on the Development of Computer-Aided Process Planning System for the Deep Drawing & Ironing of High Pressure Gas Cylinder (고압가스 용기를 위한 Deep Drawing & Ironing(D.D.I.) 공정설계 시스템 개발에 관한 연구)

  • Yoon, Ji-Hun;Jeong, Sung-Yuen;Choi, Young;Kim, Chul;Choi, Jae-Chan
    • Journal of the Korean Society for Precision Engineering
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    • v.19 no.2
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    • pp.177-186
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    • 2002
  • This paper describes a research work on the development of computer-aided design system far the deep drawing & ironing of high pressure gas cylinder. An approach to the design system is based on the knowledge-based rules. Knowledge for the system is formulated from plasticity theories, handbook, experimental results and the empirical knowledge of field experts. This system has been written in AutoLISP on the AutoCAD Rl4.0 using personal computer. This system is composed of three modules which are input. process design and drawing.

Development of The Tunnel Type Locating Drill Jig by Practical and Adaptive Tooling

  • Sim, Sung-Bo;Lee, Sung-Taeg
    • Proceedings of the Korean Society of Machine Tool Engineers Conference
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    • 2001.10a
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    • pp.185-189
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    • 2001
  • In order to prevent the production defects the optimum design of product, jig and fixture putting in the field is very significant manufacturing method. Drilling Jig is the device according to industrial demand for multi manufacturing products on the growing at alarming rate. In the field of design and making for machine tool working, welding, assembling with jig and fixture for mass production is a specific division. They require analysis of many kinds of important factors, theory and practice of machine tool operating process and jig & fixture structure, machining condition for tool making, tool materials, heat treatment of jig & fixture components, know-how and so on. In this study we designed and constructed a drilling jig of mass production and performed tryout under the Auto CAD, Auto Lisp database, that we made by database, and window environment. Especially this study is reveals with the analysis of part drawing, jig planning, jig design etc, and then the result of drill jig's making try out.

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A Study on Development of Automatic Water-gate Design Software (전자동 수문설계 소프트웨어 개발에 관한 연구)

  • 서병태;김일수
    • Transactions of the Korean Society of Machine Tool Engineers
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    • v.10 no.3
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    • pp.50-54
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    • 2001
  • Manufacturing is characterized by increasing product variety and technical complexity, decreasing levels of demand, expanding global competition and declining profitability of organizations. To survive in such a complex environment, development of the automatic design system into design and manufacturing can be introduced to increase the flexibility and adaptability to markets. This paper presents the development of an automatic water-gate design system that composed of a main program and three modules, and was programmed by AutoLISP language under AutoCAD system. The devel-oped system is capable of generating water-gate design automatically according to input data as customer requirement.

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A Study on the Development of CAD/CAM System for Deep Drawing Transfer Die in Mechanical Press Process (기계식 프레스에서의 디프 드로잉 트랜스퍼 금형 자동설계 및 가공 시스템에 관한 연구)

  • 박상봉
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 1995.10a
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    • pp.1146-1149
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    • 1995
  • The CAD/CAM System for deep drawing transfer die in mechanical press proess has been developed. The developed CAD system can generate the drawing of drawing of transfer die in mechanical press. Using these results from CAD system, it can generate the NC data to machine die's elements on the CAD system. This system can reduce design man-hours and human errors. In order to construct the system, it is used to automate the design process using knowledge base system. The developed system is based on the knowledge base system which is involved a lot of expert's technology in the practice filed. Using AutoLISP language under the AutoCAD system, CTK customer language of SmartCAM is used as the overall CAD/CAM environment. Results of this system will be provide effective aids to the designer and mannufacturer in this field.

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Development of an Automated Die Design System for Powder Forging (분말단조용 금형설계 자동화 시스템의 개발)

  • 박종옥;김길준;김영호
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 2001.04a
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    • pp.1029-1032
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    • 2001
  • The purpose of this paper is to establish an automated die design system for compacting and sizing process required in Powder Metallurgy. Though the Powder Metallurgy(P/M) is a practical and economical forming technology, it needs long time and many trials and errors for die design. Such a problem can be solved by introduction of the automated die design system for P/M. In order to establish the system, collecting, classifying, and systematizing related knowledges from the experts in industries, books, and papers were performed. The system was constructed by AutoLISP, the language operated in AutoCAD atmosphere. This language can efficiently support for user to work on drawings. There are three modules ; P/M part specification input module, P/M part design module, and Die design module. A part for vehicle was applied to the system and satisfied results were achieved.

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Recognition and classification of dimension set for automatic input of mechanical drawings (기계 도면의 자동 입력을 위한 치수 집합의 인식 및 분류)

  • 정윤수;박길흠
    • Journal of the Korean Institute of Telematics and Electronics S
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    • v.34S no.11
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    • pp.114-125
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    • 1997
  • This paper presents a method that automatically recognizes dimension sets from the mechanical drawings, and that classifies 6 types dimension sets according to functional purpose. In the proposed method, the object and closed-loop symbols are separated from the character-free drawings. Then object lines and interpretation lines are vectorized. And, after recognizing dimension sets(consistings of arrowhead, shape line, tail lines, extension lines, text-string, and feature control frame), we classify recognized dimension sets as horizontal, vertical, angular, diametral, radial, and leader dimension sets. Finally the proposed method converts classified dimension sets into AutoCAD data by using AutoLisp language. By using the methods of geometric modeling, the proposed method readily recognized and classifies dimension sets from complex drawings. Experimetnal results are presented, which are obtained by applying the proposed method to drawings drawn in compliance with the KS drafting standard.

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Development of Design Program for Air Handling Units (공기조화기 설계프로그램 개발)

  • Ham, J.K.;Kim, J.H.;Kim, Y.K.;Kim, Y.I.;Kang, P.Y.
    • Proceedings of the KSME Conference
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    • 2000.11b
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    • pp.674-679
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    • 2000
  • An air handling unit(AHU) has been usually designed by manual calculations. Drawing works together with design calculations should be redone far every designing work, and also be needed to make some corrections of them. In order to design the AHU more efficiently, an AHU program has been developed. The developed program on the Windows environment is operated by the graphic user interface(GUI) realized using the Visual Basic Interpreter. The program provides calculation sheet of coils, weights and pressures in a MS-Excel file format as well as design drawing of the AHU in a Auto CAD file format idealized by AutoLISP. Those files of the commercial softwares make easier for a designer to transfer design results to the another company for bid via e-mail.

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Automatic conversion of machining data by the recognition of press mold (프레스 금형의 특징형상 인식에 의한 가공데이터 자동변환)

  • 최홍태;반갑수;이석희
    • Proceedings of the Korean Operations and Management Science Society Conference
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    • 1994.04a
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    • pp.703-712
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    • 1994
  • This paper presents an automatic conversion of machining data from the orthographic views of press mold by feature recognition rule. The system includes following 6 modules : separation of views, function support, dimension text recognition, feature recognition, dimension text check and feature processing modules. The characteristic of this system is that with minimum user intervention, it recognizes basic features such as holes, slots, pockets and clamping parts and thus automatically converts CAD drawing details of press mold into machining data using 2D CAD system instead of using an expensive 3D Modeler. The system is developed by using IBM-PC in the environment of AutoCAD R12, AutoLISP and MetaWare High C. Performance of the system is verified as a good interfacing of CAD and CAM when applied to a lot of sample drawings.

Development of an Automated Process Planning System for Manufacturing Wheel Bolt (휠볼트 제작을 위한 공정설계 자동화 시스템 개발)

  • 박성관;박종옥;이준호;정성윤;김문생
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 2001.04a
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    • pp.983-987
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    • 2001
  • This paper deals with an automated computer-aided process planning system by which designer can determine operation sequences even if they have little experience in process planning of wheel bolt products by a multi-stage former. The approach to the system is based on knowledge-based rules and a process knowledge base consisting of design rules is built. Knowledge for the system is formulated from plasticity theories, empirical results and the empirical knowledge of field experts. Programs for the system have been written in AutoLISP for the AutoCAD using a personal computer and are composed of two main modules. An attempt is made to link programs incorporationg a number of expert design rules to form a useful package. Results obtained using the modules enable the designer and manufacturer of wheel bolt product to be more efficient in this field.

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A Study on the Forming of Eine Gear Housing using Rapid Prototyping (RP를 이용한 미세기어 하우징 성형에 관한 연구)

  • 김성욱;이기성;이승수;김민주;전언찬
    • Proceedings of the Korean Society of Machine Tool Engineers Conference
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    • 2003.04a
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    • pp.441-447
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    • 2003
  • In the study, we described on the 3D solid model be made on the AutoCAD haved an effect on the deviation of form as RP manufactures the facetres. The STL file improved the deviation of form as the facetres value but the deviation of form have the difference a little as the RP system. In result, we ruled the correlation with the 3D solid model and the RP sample manufacturing, with manufacture RP sample according to facetres value in complex shape. And we developed the program which recombination the STL file that we make use of the AutoLISP.

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