Comparative Study of the Volumetric Positioning Accuracy of CNC Machining Centres Using the Latest Laser Measurement Technology

2004 ◽  
pp. 321-326
Author(s):  
Ondrej Svoboda
Keyword(s):  
Comparative Study ◽  
Cnc Machining ◽  
Measurement Technology ◽  
Laser Measurement ◽  
Positioning Accuracy

Quality Inspection System of Circular Saw Blades Based on Eddy Current Inspection and Laser Measurement

2017 ◽  
Vol 872 ◽  
pp. 378-382
Author(s):  
Xin Qiang Ma ◽  
Hai Long Ge ◽  
Jian Ma ◽  
Wei Cheng ◽  
Yuan Ren
Keyword(s):  
Nondestructive Testing ◽  
Eddy Current ◽  
Geometric Feature ◽  
Inspection System ◽  
Measurement Technology ◽  
Detection Accuracy ◽  
Laser Measurement ◽  
Circular Saw ◽  
Circular Saw Blade ◽  
Saw Blade

Aiming at the problem of the complicated process, the low precision and efficiency of crack detection and key geometric feature of the circular saw blade, the quality detection system of the circular saw blade based on the nondestructive testing and laser measurement technology is studied. By using the laser measurement technology and optimizing the data processing method, the face runout, the thickness of the circular saw blade are measured. The crack defects in the tooth root region of the circular saw blade are detected by eddy current nondestructive testing technology. The system achieves the radial detection of 1mm radial sawing, the detection accuracy of the round beating is> 0.03mm, and the thickness measurement accuracy is> 0.005mm.

Research progress and application of 6-DOF laser measurement technology

2021 ◽  
Author(s):  
Yongchao Zhang ◽  
Tieli Zhang ◽  
Xiaoxue Liu ◽  
Shuo Jin ◽  
Xiujian Zhang ◽  
...  
Keyword(s):  
Research Progress ◽  
Measurement Technology ◽  
Laser Measurement

Inclusive estimations of ball screw-based CNC feed drive system over positioning and pre-loading factor

2018 ◽  
Vol 38 (3) ◽  
pp. 303-313 ◽  
Author(s):  
Kuldeep Verma ◽  
R.M. Belokar
Keyword(s):  
Drive System ◽  
Cnc Machining ◽  
Ball Screw ◽  
Basic Rule ◽  
Positioning Accuracy ◽  
Cnc Machines ◽  
Content Type ◽  
Feed Drive ◽  
Accuracy And Repeatability ◽  
Feed Drive System

Purpose This paper aims to investigate the performance and positioning accuracy of computer numerical controlled (CNC) feed drive system using a ball screw-based pre-loading impact factor. Design/methodology/approach Initially, axial displacement of support bearings has been computed in relation to the different preload values. Among the computed values, a basic rule equation has been developed for the calculation of elongation in the bearings. The value of displacements computed from the developed equation has been considered as a pre-loading value, and its behavior on the feed drive system has been analyzed. Findings The elongation of bearings impacts the positioning accuracy and repeatability of the feed drive system and of CNC machines. Next, an analytical model for the rigorous assessment of CNC feed drive system has been designed and developed. The positioning accuracy of CNC machine in relation with different pre-loading values has been analyzed. Practical implications The results obtained from these investigations enhance the positioning accuracy of CNC machining centers. The optimum pre-loading value has been analyzed among the available ranges, and it has been proposed that optimal results have been achieved at 5 per cent of dynamic load rating. Originality/value This paper proposes improved explorations toward the performance of the CNC machines by optimizing the positioning accuracy through pre-loading. Finally, analytical estimations have been carried out to prove the validity of the proposal.

The laser measurement technology of combustion flow field

2014 ◽  
Author(s):  
Mingdong Wang ◽  
Guangyu Wang ◽  
Dongsheng Qu
Keyword(s):  
Flow Field ◽  
Measurement Technology ◽  
Laser Measurement ◽  
Combustion Flow

scholarly journals Laser Point Cloud Segmentation in MATLAB

2021 ◽  
Author(s):  
Bahadır Ergün ◽  
Cumhur Şahin
Keyword(s):  
Big Data ◽  
Point Cloud ◽  
Point Clouds ◽  
Measurement Technology ◽  
Laser Measurement ◽  
Material Sources ◽  
Point Cloud Segmentation ◽  
Accuracy And Precision ◽  
Working Together ◽  
Engineering Concept

Currently, as a result of the massive continuous advancements in laser measurement technology, possibilities of map production are broadened, the loss of time and the waste of material sources are highly prevented, and the accuracy and precision of the obtained results are significantly improved. In the view of engineering concept. However, big data which are from laser point clouds have been especially used in the significant procedures of surveying studies. Programming methods are dependent in each studies. In the necessity of the applications, the coding procedure has more efficient, the data of work has increased, and time has been consumed. The coding methods have necessarily been optimized for working together especially in the big data studies. In this section, an automated survey (building facade surveying) is produced from scanning data by means of coding in MatLAB.

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