Illustrates recently developed fixture design & verification technology, keying on their central role in manufacturing processes-employing the latest computer technology to minimize costs, increase productivity, & assure product quality. Presents advanced data & analysis that is directly applicable to development of a comprehensive computer-aided modular fixture design system.

Preface

iii

Introduction

1

(13)

Fixtures

1

(3)

Flexible Fixturing

4

(3)

Fixtures for CNC Machining

7

(2)

Computer-Aided Fixture Design

9

(2)

Summary

11

(3)

References

11

(3)

Fixture-Design Principle

14

(35)

Basic Requirements of Fixturing Systems

14

(2)

Locating Principle and Locating Errors

16

(18)

Clamping Principle and Clamping-Force Calculation

34

(13)

Fixture-Design Processes

47

(2)

References

48

(1)

Modular-Fixture Systems

49

(36)

Development of Modular Fixtures

49

(4)

T-Slot-Based Modular-Fixture Systems

53

(10)

Dowel-Pin-Based Modular-Fixture Systems

63

(12)

Cost Analysis of Modular-Fixture Applications

75

(4)

Fixturing Management with Modular-Fixture Application

79

(6)

References

84

(1)

Interactive Computer-Aided Fixture Design

85

(41)

Overall Structure of the I-CAFD System

86

(3)

Locating/Clamping Model Analysis and Classification

89

(9)

Fixture Component Selection

98

(1)

Workpiece Information Retrieval

98

(7)

Fixture Component Assembly Manipulation

105

(9)

Implementation Example of the I-CAFD System

114

(12)

References

125

(1)

Group-Technology-Based Computer-Aided Fixture Design

126

(38)

Introduction

126

(2)

Fixture-Design Process Analysis

128

(5)

Fixture Structure Analysis

133

(1)

Fixturing Feature Analysis

134

(8)

Representation of Fixturing Feature Information

142

(5)

Fixture-Design Similarity Analysis

147

(1)

Implementation

148

(6)

Case Study

154

(10)

References

162

(2)

Automated Fixture Configuration Design

164

(47)

Introduction

164

(3)

Analysis of Modular Fixture Structures

167

(11)

Establishment of MFEARDB

178

(15)

Automated Fixture Configuration Design

193

(11)

Fixture Configuration Design Examples and Summary

204

(7)

References

208

(3)

Constraint-Based Fixture Assembly Modeling and Design

211

(35)

Related Research

213

(2)

Constraint-Based Assembly Modeling

215

(14)

Constraint-Based Modular-Fixture Design

229

(7)

Implementation of Constraint-Based Fixture Design

236

(10)

References

244

(2)

Geometric Analysis for Automated Modular-Fixture Design

246

(46)

Introduction

246

(5)

Geometric Constraint Conditions

251

(6)

Assembly Analysis

257

(11)

3-D Fixture Configurations

268

(6)

Locating Accuracy Analysis

274

(5)

Clamp Planning

279

(7)

Discussion on Fixturing Accessibility

286

(3)

Examples and Summary

289

(3)

References

289

(3)

Fixturing Accuracy Analysis and Verification

292

(49)

Introduction

292

(1)

Machining Accuracy Analysis

293

(22)

Locating Error Analysis

315

(20)

Locating Accuracy Verification of Fixture Design

335

(1)

Summary

335

(6)

References

337

(4)

Fixturing Surface Accessibility Analysis

341

(23)

Introduction

341

(2)

Basic Requirements on Fixturing Surfaces

343

(2)

Accessibility Analysis

345

(12)

Implementation and Examples

357

(5)

Conclusion

362

(2)

References

362

(2)

Fixturing Stiffness and Clamping Stability Verification

364

(37)

Fixturing Stiffness

365

(2)

Fixturing Stiffness of T-Slot-Based Fixtures

367

(12)

Fixturing Stiffness of Dowel-Pin-Based Fixtures

379

(6)

Clamping Stability Verification

385

(16)

References

399

(2)

Fast Interference-Checking Algorithm for Automated Fixture-Design Verification

401

(38)

Introduction

401

(4)

Interference Checking Between Fixture Components and Tool Path

405

(21)

Interference Checking Between Fixture Components

426

(3)

Algorithm Improvement Discussion

429

(2)

Implementation

431

(8)

References

437

(2)

Fixture Planning and Setup Planning in CAD/CAM Integration

439

(38)

Introduction

439

(2)

Manufacturing Features

441

(7)

Fixture Planning

448

(15)

Setup Planning

463

(14)

References

475

(2)

Index

477

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