Automated modular fixture planning: Accuracy, clamping, and accessibility analyses

Wu, Yufeng; Ye, Rong; Ma, Weidong; LeClair, Steven R.

doi:10.1016/s0736-5845(97)00025-2

Cited by 38 publications

(15 citation statements)

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“…The surface accessibility, accuracy, and fixturing stability were the major parameters used in the design of their fixture planning system. Wu et al [16,17]developed a geometrical analysis approach for automated modular fixture planning. The proposed method was used to determine the fixture surfaces and points.…”

Section: Literature Reviewmentioning

confidence: 99%

An Automatic Fixture Design System for Creating Prismatic Parts

Al-Ahmari

Khan

Nasr

et al. 2014

SAJIE

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A modular fixture system is a flexible alternative to a dedicated fixture. In this paper, an automatic modular fixture design system is suggested for creating prismatic parts. The system contains fixture planning, fixture modelling, and fixture assembly. The part geometrical database and process plans are considered as inputs to the system. A rulebased method is applied to assign the feasible locating scheme and the locating and clamping datum. The search strategy is designed to determine the most suitable locating and clamping points. The final fixture assembly is made with the standard fixture components using the CATVBA Editor inside CATIAV5. The proposed methodology is successfully validated with a case study. OPSOMMING'n Aanpasbare hegtingsisteem is 'n buigsame alternatief vir 'n toegewyde hegstuk. 'n Outomatiese aanpasbare hegstuk ontwerpsisteem vir die skep van prismatiese onderdele word voorgestel. Die sisteem bevat hegstuk beplanning, hegstuk modellering en hegstuk samestelling. Die onderdeel geometriese databasis en proses planne word as insette gebruik. A reëlgebaseerde metode is toegepas om die opsporings en vasklem verwysingspunte toe te ken. Die soekstrategie is ontwerp om die mees geskikte verwysingsen klempunte te bepaal. Die finale hegstuk samestelling is gemaak van die standaard hegstuk komponente van die CATVBA Editor van CATIAV5. Die voorgestelde benadering is suksesvol gevalideer deur middel van 'n gevallestudie.

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Section: Literature Reviewmentioning

confidence: 99%

An Automatic Fixture Design System for Creating Prismatic Parts

Al-Ahmari

Khan

Nasr

et al. 2014

SAJIE

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“…Additionally, the definition of the functions demands different analysis models related to the constraints, e.g. : accuracy [16], accessibility [16] and stability [17]; and optimization methods [18,19].…”

Section: Unit Of Knowledge: Fixture Design Functions (Fdf)mentioning

confidence: 99%

Fixture knowledge model development and implementation based on a functional design approach

Alarcón

CHUECO

Garcia

et al. 2010

Robotics and Computer-Integrated Manufacturing

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Keywords:Knowledge model KBE development Fixture design Fixture KBE applicationThe development of a knowledge model applied to fixture design is a complex task. The main purpose of such model is the development of a knowledge-based application to assist fixture designers. It comprises a detailed specification of the types and structures of data involved in the execution of the inference process needed to create a fixture solution for machining a raw part. A development method together with a knowledge model for automating fixture design is proposed. The development was divided into three parts: Design Process Model, definition of Top-level functional functions and Product Knowledge Model. Adopting a functional design approach, the fixture design solution was created in two levels: functional and detailed. The functional level is based on fixture functional elements and the detailed one is based on fixture commercial elements. The definitions and concepts used in the application are specified in several Units of Knowledge (UoK) that comprises the Fixture Knowledge Model. Common Knowledge Analysis and Design Structuring (CommonKADS), Methodology and software tools Oriented to KBE Applications (MOKA), Integrated DEFinition for Function Modelling (IDEFO) and Unified Modelling Language (UML) are the methodologies and techniques used in the proposed method. Finally, a prototype KBE application for fixture design was developed.

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“…Thus, the stability requirement is an important condition that needs to be considered for a good fixture. It has been intensively investigated in [2,3]. A method that was proposed by Correspondence: {daniel.duret, alain.sergent, hien.bui-minh}@univ-savoie.fr…”

Section: Introductionmentioning

confidence: 99%

An investigation of indicators for controlling the quality of a fixture

Duret¹,

Sergent²,

Bui-Minh³

2010

Int. J. Metrol. Qual. Eng.

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Abstract. The quality of fixtures plays an important role in product quality during manufacturing, measuring or assembly. Finding methods for evaluating a fixture's quality, which may depend on workpiece errors, fixture errors, influences of clamping force, friction, etc., is necessary to improve the product quality. This paper proposes the indicators that are used for estimating the quality of a fixture based on workpiece localization repeatability. Here, the workpiece localization will be considered in the following different cases: (1) considering only the influence of different geometric parameters (types) of the fixture, (2) taking into account the clamping force in the different types of the fixture, (3) the influence of friction on the contacts of the workpiece-fixture. A fixture model is presented and analysed with some examples. An experimental fixture and workpiece are then used to analyse and compare with the theoretical results.

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Automated modular fixture planning: Accuracy, clamping, and accessibility analyses

Cited by 38 publications

References 0 publications

An Automatic Fixture Design System for Creating Prismatic Parts

An Automatic Fixture Design System for Creating Prismatic Parts

Fixture knowledge model development and implementation based on a functional design approach

An investigation of indicators for controlling the quality of a fixture

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