Design And Implementation Of High Temperature Wheel Profile Measurement Simulation System

In high temperature wheel rolling,more than ten dimensional parameters such as the diameter of the billet tread,the height of the rim and the thickness of the spoke plate are needed timely and accurately,so as to guide the rolling process to adjust the dimension to a higher level and prevent the occurrence of batch waste accidents.Limited by equipment,the production site is mainly measured by manual,manual measurement accuracy is not high,labor intensity,process data is difficult to save and other shortcomings;Therefore,the high temperature wheel contour measurement simulation system is first developed in laboratory environment according to the field requirements.In this paper,according to the technical requirements of high temperature wheel size measurement,priority is given to some core problems in the actual measurement process,and verified by a series of experiments in the laboratory.The main work contents are as follows:1.Designed and implemented the simulation workpiece,according to the laboratory environment and site condition simulation design the small specification artifacts,surface as the surface is divided into single S bending and double S bending,surface shape similar to the wheels,apply to the laboratory simulation experiment,and on the basis of the design and implement the calibration block cube metal,cooperate with turntable simulation system can be very good work;2.Select the acquisition equipment and complete the spatial layout and parameter adjustment.The scanning equipment adopts three 3D laser sensors to cover the radial section profile of a wheel,and adjust the laser acquisition parameters to achieve the best effect;According to the temperature fluctuation of the simulated workpiece surface,a single thermal imager was used to collect the linear array temperature data in the radius direction.The acquisition method can be triggered by the encoder at equal intervals.The sensor and thermal imager can simultaneously collect the same contour,and collect multiple radial surface contour data uniformly.3.Software implementation environment,mainly Halcon and Visual Studio 2019,the former to achieve data collection,processing and analysis,the latter to achieve interface design,device control,data interaction and human-computer interaction;4.Model and algorithm implementation,mainly including attitude calibration,temperature dimension and eccentricity error correction model,attitude calibration mainly uses cube calibration block as marker for sensor position acquisition and data stitching;The temperature size model is used to unify the size parameters to the same temperature standard in multi-section measurement,which is beneficial to reduce the3 D reduction error.The purpose of the eccentricity correction model is to reduce the measurement error and ensure the originality and accuracy of the data.In addition,many algorithms on the measurement process are implemented,such as denoising,filtering,fitting,3D reduction,slicing,etc.The research shows that the simulation system is simple and convenient to operate,and the important techniques and algorithms in the measurement process have been implemented and tested,which can realize the rapid and accurate measurement of the workpiece size of high temperature simulation.After subsequent improvement,it is expected to be used for measuring the size of high temperature wheel in the field.