Research on Three-dimensional Assembly Process Planning System

The deficiencies of the current computer aided assembly process system are analyzed,and a method of constructing three-dimensional assembly process planning system is put forward.The key technologies are studied including assembly sequence planning,assembly path planning,collision detection,assembly animation and so on.Based on Pro/E platform,structuring assembly model,producing assembly sequence by human-computer interaction.Producing assembly path by recording key points created by disassembling parts;Using tolerance box method to test collision detection.a prototype system of 3D assembly process planning system with the Pro/TOOLKIT is developed,and the system is tested by a assembly process of the product.The test has proved that the system,based on this method,can realize simulation of 3D assembly animation,produce 3d process diagram,and vividly guide the field assemblage.