Model Reconstruction from CMM and Optical Scanning Data for Reverse Engineering

2012 ◽  
Vol 538-541 ◽  
pp. 2957-2960
Author(s):  
Peng Xin Liu ◽  
Xuan Liu ◽  
Su Chang Ma ◽  
Li Jie Wang
Keyword(s):  
High Precision ◽  
Coordinate Measuring Machine ◽  
Optical Scanning ◽  
Data Merging ◽  
Optical Scanner ◽  
System A ◽  
Common Coordinate System ◽  
Measuring Machine ◽  
Touch Probe ◽  
Merging Method

This paper introduces a novel modeling method using points acquired by a touch probe on a coordinate measuring machine and an optical scanner. An improved iterative closet point algorithm is adopted in order to transform the optical scanning data and the high precision points captured by a touch probe into a common coordinate system. A data merging method is also used to keep the high precision of feature surfaces and then unified into a precise 3D model. Experimental results demonstrate the efficiency of the presented method, which enhances the flexibility of digitization while maintaining the accuracy of feature surfaces.

A Combined Modeling Method Based on Multiple-Sensor Integrated Measuring System for Reverse Engineering

2011 ◽  
Vol 418-420 ◽  
pp. 2036-2039
Author(s):  
Peng Xin Liu ◽  
Xuan Liu ◽  
Min Li
Keyword(s):  
High Precision ◽  
Modeling Method ◽  
Measuring System ◽  
Software Environment ◽  
Precision Data ◽  
Optical Scanning ◽  
Data Merging ◽  
Common Coordinate System ◽  
Multiple Sensor ◽  
Touch Probe

In this paper a combined modeling method using digitized points measured by multiple-sensor integrated measuring system with a touch probe and a optical scanning probe is presented. The optical scanning data in the form of triangulated mesh and the high precision data captured by a touch probe on an integrated measuring system are transformed into a common coordinate system by the worktable for registration and improved ICP algorithm. A data merging method is used to keep the high precision of feature surfaces.The merging data is unified into a precise 3D model in CAD software environment based on the strategy for optimization reconstruction. Experimental results demonstrate the efficiency of the proposed method, which enhances the flexibility of digitizing while maintaining the accuracy of feature surfaces.

scholarly journals Non-destructive testing of automotive heat exchangers

2018 ◽  
Vol 244 ◽  
pp. 03007
Author(s):  
Katarzyna Peta ◽  
Jan Żurek ◽  
Adam Patalas
Keyword(s):  
Heat Exchangers ◽  
Three Dimensional ◽  
Coordinate Measuring Machine ◽  
Non Destructive Testing ◽  
Destructive Testing ◽  
Optical Scanning ◽  
Optical Scanner ◽  
Measuring Machine ◽  
Non Destructive ◽  
Geometrical Dimensions

The paper presents the results of non-destructive testing to the final control of automotive heat exchangers, which must meet a number of technological and exploitative requirements resulting from their working conditions. For the observation of images of heat exchangers, verification of geometrical dimensions and identification of surface and volume defects, the used methods were: computed tomography (highresolution microtomograph Phoenix v|tome|x), three-dimensional optical scanning (3D GOM ATOS III optical scanner), coordinate measuring technique (coordinate measuring machine Hexagon Global Performance 122210). The effectiveness of nondestructive testing in industrial conditions was assessed and the directions of further research in this area were indicated.

scholarly journals Characterization of machining quality attributes based on spindle probe, coordinate measuring machine, and surface roughness data

2014 ◽  
Vol 1 (2) ◽  
pp. 128-139 ◽  
Author(s):  
Tzu-Liang Bill Tseng ◽  
Yongjin James Kwon
Keyword(s):  
Surface Roughness ◽  
Coordinate Measuring Machine ◽  
Dimensional Accuracy ◽  
Quality Characteristics ◽  
Machining Parameters ◽  
Production Environment ◽  
Significant Interaction Effect ◽  
Machining Quality ◽  
Measuring Machine ◽  
Touch Probe

Abstract This study investigates the effects of machining parameters as they relate to the quality characteristics of machined features. Two most important quality characteristics are set as the dimensional accuracy and the surface roughness. Before any newly acquired machine tool is put to use for production, it is important to test the machine in a systematic way to find out how different parameter settings affect machining quality. The empirical verification was made by conducting a Design of Experiment (DOE) with 3 levels and 3 factors on a state-of-the-art Cincinnati Hawk Arrow 750 Vertical Machining Center (VMC). Data analysis revealed that the significant factor was the Hardness of the material and the significant interaction effect was the Hardness + Feed for dimensional accuracy, while the significant factor was Speed for surface roughness. Since the equally important thing is the capability of the instruments from which the quality characteristics are being measured, a comparison was made between the VMC touch probe readings and the measurements from a Mitutoyo coordinate measuring machine (CMM) on bore diameters. A machine mounted touch probe has gained a wide acceptance in recent years, as it is more suitable for the modern manufacturing environment. The data vindicated that the VMC touch probe has the capability that is suitable for the production environment. The test results can be incorporated in the process plan to help maintain the machining quality in the subsequent runs.

Measurement System for Non-Cylinder Pin Hole of Piston

2011 ◽  
Vol 301-303 ◽  
pp. 617-622
Author(s):  
Z. Y. Yang ◽  
D. H. Liu ◽  
F. Yang ◽  
Z. G. Xie ◽  
Y. Huang
Keyword(s):  
High Precision ◽  
Measurement System ◽  
Coordinate Measuring Machine ◽  
Measuring Instrument ◽  
Movement Error ◽  
Pneumatic Measuring ◽  
Software Modules ◽  
Measuring Machine

Aim to the low measuring precision of non-cylinder pin hole using the coordinate measuring machine(CMM)and pneumatic measuring instrument, a new solution is proposed which use the high-precision digital lever probe to detect the contours of pin hole with a single clamping situation. The measuring principal of non-cylinder pin hole of piston is introduced and the functions and measuring processes of the measurement system are also presented. The software modules are given and the probe centering error and the parallelism movement error are discussed detailedly. A measuring example is given in the end. The measuring results show that the measurement system has the ability to detect the contours of pin hole with high-precision and efficiently.

A Multi-Probe Measurement Method to Evaluate the Yaw and Straightness Errors of XY Stage on High Precision CMM

2010 ◽  
Vol 447-448 ◽  
pp. 590-594 ◽  
Author(s):  
Ping Yang ◽  
Shusaku Shibata ◽  
Satoru Takahashi ◽  
Kiyoshi Takamasu ◽  
Osamu Sato ◽  
...  
Keyword(s):  
High Precision ◽  
Coordinate Measuring Machine ◽  
Simultaneous Equation ◽  
High Accuracy ◽  
Probe Measurement ◽  
Probe Method ◽  
Measuring Machine ◽  
Simulation Results ◽  
Straightness Error ◽  
Laser Interferometers

To develop a high precision Micro Coordinate Measuring Machine (Micro-CMM), it is important to evaluate an X-Y stage on the Micro-CMM. A precision multi-probe measurement system has been designed and developed for simultaneously measuring the yaw and straightness errors of the X-Y stage. In the system, an autocollimator measures the yaw error of the stage, and two laser interferometers measure the profile of a standard mirror which is fixed on the X-Y stage. The straightness error is reconstructed by the application of simultaneous equation and least-squares methods, and the uncertainty associated with the multi-probe method is simulated. When the interval of the laser interferometers equals 10 mm, the standard deviation of multi-probe method using the high accuracy autocollimator and the laser interferometers is about 10 nm. The simulation results satisfy our purpose for the uncertainty of 50 nm, and practical considerations are discussed.

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