Research On Reverse Design Of Steering Parts In Automobile Suspension System

With the introduction of the 2025 concept of China Manufacturing,China is constantly striving to complete the transition from manufacturing to manufacturing.Therefore,it is very important to absorb foreign advanced production technology and carry out independent innovation on this basis.Therefore,reverse engineering(RE)has attracted wide attention in the fields of aerospace,automobile manufacturing,mechanical design,medical care,etc.,and has also become a long-term goal of engineering applications and computer science research.Reverse engineering reconstructs a CAD model from measured point cloud data by analyzing the characteristics of the physical component geometry.In the past two decades,there have been few ways to discuss reverse modeling from the perspective of mechanical engineering.Especially in the automobile manufacturing industry,the current reverse design is generally based on the car's cover,interior parts,and casing,and for some of the complex impact loads,especially the reverse design of the steering parts in the car suspension system.Not much.Therefore,there is a lack of specific ideas and methods for the reverse design of such complex surface parts.This paper mainly studies the physical reverse modeling technology of steering knuckle and steering control arm parts in automobile suspension system,and summarizes and summarizes the fast reverse design method for this type of parts.Firstly,the tooth point cloud data of the excavator is reversed by two methods based on Geomagic Design X forward and reverse software environment.One is based on the fast reverse design method based on the complete point cloud data model,and the other is It is a parametric inverse design method based on the segmentation of geometrical feature regions of part profiles.Finally,the accuracy analysis in Geomagic Control X verified that both methods can reconstruct the solid CAD model that meets the requirements of its reverse design accuracy,and significantly improve the efficiency of reverse design.Then,based on this,the knuckle parts with many assembly positions and the steering control arm parts with complex profiles are selected as the research objects.By analyzing the characteristics of the two parts,the above two methods are applied respectively.On both parts.From the initial acquisition of point cloud data to data processing to reverse design,through the idea of positive and negative hybrid modeling,the CAD model that meets the practical application of the project is reconstructed.The research results show that this method provides a realistic and feasible design idea for the reverse design of some complex castings in automotive suspensions.At the same time,it can shorten the cycle of design and improvement of such parts and accelerate the rate of product forward and reverse development.