Five-axis automated measurement by coordinate measuring machine

2010 ◽  
Vol 55 (5-8) ◽  
pp. 657-673 ◽  
Author(s):  
Hui-Chin Chang ◽  
Alan C. Lin
Keyword(s):  
Coordinate Measuring Machine ◽  
Automated Measurement ◽  
Measuring Machine ◽  
Five Axis

scholarly journals Study of Machining of Gears with Regular and Modified Outline Using CNC Machine Tools

Materials ◽  
2021 ◽  
Vol 14 (11) ◽  
pp. 2913
Author(s):  
Rafał Gołębski ◽  
Piotr Boral
Keyword(s):  
Machine Tools ◽  
Coordinate Measuring Machine ◽  
Optical Microscope ◽  
Numerical Control ◽  
Cnc Machine Tools ◽  
Cnc Milling ◽  
Cnc Machine ◽  
Cylindrical Gears ◽  
Measuring Machine ◽  
Five Axis

Classic methods of machining cylindrical gears, such as hobbing or circumferential chiseling, require the use of expensive special machine tools and dedicated tools, which makes production unprofitable, especially in small and medium series. Today, special attention is paid to the technology of making gears using universal CNC (computer numerical control) machine tools with standard cheap tools. On the basis of the presented mathematical model, a software was developed to generate a code that controls a machine tool for machining cylindrical gears with straight and modified tooth line using the multipass method. Made of steel 16MnCr5, gear wheels with a straight tooth line and with a longitudinally modified convex-convex tooth line were machined on a five-axis CNC milling machine DMG MORI CMX50U, using solid carbide milling cutters (cylindrical and ball end) for processing. The manufactured gears were inspected on a ZEISS coordinate measuring machine, using the software Gear Pro Involute. The conformity of the outline, the tooth line, and the gear pitch were assessed. The side surfaces of the teeth after machining according to the planned strategy were also assessed; the tests were carried out using the optical microscope Alicona Infinite Focus G5 and the contact profilographometer Taylor Hobson, Talysurf 120. The presented method is able to provide a very good quality of machined gears in relation to competing methods. The great advantage of this method is the use of a tool that is not geometrically related to the shape of the machined gear profile, which allows the production of cylindrical gears with a tooth and profile line other than the standard.

The Research of Five-Axis NC High Efficient Machining Technology for UAV Integral Impeller

2014 ◽  
Vol 598 ◽  
pp. 189-193
Author(s):  
Hui Zhao ◽  
Yu Jun Cai ◽  
Guo He Li
Keyword(s):  
Process Analysis ◽  
Coordinate Measuring Machine ◽  
Machining Process ◽  
Machining Parameters ◽  
Program Optimization ◽  
Cnc Machine ◽  
Rough Machining ◽  
High Efficient ◽  
Measuring Machine ◽  
Five Axis

In this paper, a very detailed process analysis for UAV integral impeller was made. According to the specific processing requirements, the appropriate CNC machine, blank and cutting tools have been choosing. In the rough machining process, various machining strategies have been used for comparing and analyzing, finally a more efficient roughing method with the accurate machining parameters will be obtained. At the same time the machining method have been improved and the processing parameters also have been determined in the semi-finishing process. Through the simulation processing in VERICUT, the possibility of the existence of interference which is usually occurred in the actual processing can be ruled out and the program optimization will be finished in the meantime. Finally, using intelligent three-coordinate measuring machine the consequence will be verified and inspected in the actual machining process.

VERNE - a five-axis parallel kinematics milling machine

2005 ◽  
Vol 219 (3) ◽  
pp. 327-336 ◽  
Author(s):  
M Terrier ◽  
M Giménez ◽  
J-Y Hascoët
Keyword(s):  
High Speed ◽  
Experimental Approach ◽  
Coordinate Measuring Machine ◽  
Direct Consequence ◽  
Numerical Control ◽  
Parallel Kinematics ◽  
High Speed Milling ◽  
Axis Parallel ◽  
Measuring Machine ◽  
Five Axis

Ten years ago a new kind of machine tool was presented in Chicago, based on parallel kinematics architectures. Since then, many of these parallel kinematics machines (PKMs) have been developed around the world. Their main interest lies in their high dynamic characteristics, which could help in going faster in high-speed milling. In order to develop high-speed milling on PKM tools and to highlight their potentialities, the French laboratory IRCCyN is now equipped with the VERNE. This PKM tool has been developed by the Spanish company Fatronik. However, the high-speed milling production process is a complex task, in which a great number of parameters influence the final precision of the part and the productivity of the machine. For example, the NC (numerical control) and computer-aided manufacturing (CAM) parameters (feed forward, milling strategies, etc.), the piece geometry, the machine structure, the tool, etc., have a direct consequence on the final part. Hence, a method has been developed in order to check the capability of the machine (either serial or parallel) in milling, which relies on two approaches. The first one is an experimental approach (either using a coordinate measuring machine or acquiring the output axis encoders), while the second one is a simulated approach. After introducing the kinematics of the VERNE, the experimental approach performed so far will be presented.

A study on the key techniques of application of REVO five-axis system in non-orthogonal coordinate measuring machine

2016 ◽  
Vol 231 (4) ◽  
pp. 730-736 ◽  
Author(s):  
Haitao Zhang ◽  
Shugui Liu ◽  
Xinghua Li
Keyword(s):  
Mathematical Model ◽  
Measurement Data ◽  
Coordinate Measuring Machine ◽  
Coordinate Measuring Machines ◽  
Measurement Results ◽  
Measuring Machine ◽  
Key Techniques ◽  
Five Axis ◽  
The Mathematical Model ◽  
Body Theory

REVO five-axis system, designed for the orthogonal coordinate measuring machines, must be reconfigured for the application in the non-orthogonal coordinate measuring machines. First, in this article, error sources of the system and components of measurement data are analyzed; then, scale values of coordinate measuring machine axes, which are essential to derive the coordinates of measured points in non-orthogonal coordinate measuring machine, are separated out. Besides, the mathematical model of REVO is established based on the quasi-rigid body theory, from which the measurement results can be evaluated by data derived instead of that returned by the system. The effectiveness of both separation of scale values and mathematical model of REVO is proved by experiments and practice. The research of this article is of great significance to the application of REVO five-axis system in the non-orthogonal coordinate measuring machine.

scholarly journals Coordinate Measuring Machine Retrofit and Technological Upgradation

2019 ◽  
Vol 9 (2S4) ◽  
pp. 488-491
Keyword(s):  
Coordinate Measuring Machine ◽  
Measurement Time ◽  
Air Bearing ◽  
Machine Accuracy ◽  
Measuring Machine ◽  
Measurement Software ◽  
Head Probe ◽  
Five Axis ◽  
Probe Head

Planned To Import Axis Motors and Air Bearing From U.S. •Planned To Import 5axis Probe Head, Probe Head & Machine Controller, 5 Axis Measurement Software From U.K. •Machine Axis X-900mm, Y-1200mm, Z-800mm, A -115°To 115°, B- Infinity Position. •Being Five Axis Technologies We Can Minimize the Measurement Time By 70%, So Throughput Of The Machine Can Be Increased. •Being Five Axis Technologies We Can Rotate The Probe Head With Infinite Positions Which Can Minimize The Stylus Calibration & Increases Machine Accuracy. •CMM Retrofit, Technological Upgradation & Calibration Cost Will Come Around 80 Lakhs.

scholarly journals A Fiducial-Aided Reconfigurable Artefact for the Estimation of Volumetric Errors of Multi-axis Ultra-Precision Machine Tools

2021 ◽  
Author(s):  
Shixiang Wang ◽  
Chi Fai Cheung ◽  
Lingbao Kong
Keyword(s):  
Machine Tools ◽  
Experimental Studies ◽  
Coordinate Measuring Machine ◽  
Working Space ◽  
Precision Machine ◽  
Volumetric Errors ◽  
Ultra Precision ◽  
Measuring Machine ◽  
Precision Machine Tools ◽  
Five Axis

Abstract In this paper, a fiducial-aided reconfigurable artefact is presented for estimating volumetric errors of a multi-axis machine tools. The artefact makes use of an adjustable number of standard balls as fiducials to build a 3D artefact which has been calibrated on a coordinate measuring machine (CMM). This 3D artefact shows its reconfigurability in its number of fiducials and their locations according to the characteristics of workpieces and machine tools. The developed kinematics of the machine tool was employed to identify the volumetric errors in the working space by comparing the information acquired by the on-machine metrology with that by the CMM. Experimental studies are conducted on a five-axis ultra-precision machine tools mounted with the 3D artefact composed of five standard spheres. Factors including the gravity effect and measurement repeatability are examined for the optimization of the geometry of the artefact. The results show that the developed 3D artefact is able to provide information of the volume occupied by the workpiece.

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