Motion accuracy measurement device for NC machine tools by using parallel mechanism

2002 ◽  
Vol 2002 (0) ◽  
pp. 69
Author(s):  
Y. Ihara ◽  
N. Natsui ◽  
Y. Tanaka
Keyword(s):  
Machine Tools ◽  
Parallel Mechanism ◽  
Measurement Device ◽  
Accuracy Measurement ◽  
Nc Machine ◽  
Nc Machine Tools

scholarly journals Development of Motion Accuracy Measurement Method of Five Axis NC Machine Tools with ISO230-4

2006 ◽  
Vol 72 (7) ◽  
pp. 873-877
Author(s):  
Masaki USHIO ◽  
Norifumi KURMAE ◽  
Masahide KOUYA ◽  
Hiroyuki NARAHARA ◽  
Hiroyuki KORESAWA ◽  
...  
Keyword(s):  
Machine Tools ◽  
Measurement Method ◽  
Accuracy Measurement ◽  
Nc Machine ◽  
Nc Machine Tools ◽  
Five Axis

A New Composite Trajectory Method for Motion Accuracy Measurement of 3-Axis Machine Tools

2012 ◽  
Author(s):  
Zhengchun Du ◽  
Jianguo Yang ◽  
Steven Y. Liang
Keyword(s):  
Machine Tools ◽  
Polygonal Line ◽  
Measuring Method ◽  
New Method ◽  
Motion Error ◽  
Accuracy Measurement ◽  
Straight Line ◽  
Nc Machine ◽  
Nc Machine Tools ◽  
Geometric Motion

Geometric motion error measurement has been considered as an important task for accuracy enhancement and quality assurance of NC machine tools and CMMs. In consideration of the disadvantages of traditional measuring methods, such as Laser interferometer and Double Ball Bar method, a new measuring method for motion accuracy of 3-axis NC equipments based on composite trajectory including circle and non-circle (straight line and/or polygonal line) is proposed. The principles and techniques of the new measuring method are discussed in detail. 8 feasible measuring strategies based on different measuring groupings are summarized and optimized. The experiment of the most preferable strategy is carried out on the 3-axis CNC vertical machining center Cincinnati 750 Arrow by using cross grid encoder. The whole measuring time of 21 error components of the new method is cut down to 1–2 h because of easy installation, adjustment, operation and the characteristics of non-contact measurement. Result shows that the new method is suitable for ‘on machine’ measurement and has good prospects of wide application.

Development of a Motion Accuracy Measurement System of NC Machine Tools

2005 ◽  
Vol 71 (8) ◽  
pp. 1000-1004 ◽  
Author(s):  
Masaki USHIO ◽  
Hidefumi USHIJIMA ◽  
Masahide KOUYA ◽  
Hiroyuki NARAHARA ◽  
Hiroshi SUZUKI
Keyword(s):  
Measurement System ◽  
Machine Tools ◽  
Accuracy Measurement ◽  
Nc Machine ◽  
Nc Machine Tools

Design of Motion Accuracy Measurement Device for NC Machine Tools with Three Displacement Sensors

2011 ◽  
Vol 5 (6) ◽  
pp. 847-854 ◽  
Author(s):  
Yukitoshi Ihara ◽  
◽  
Yuki Hiramatsu
Keyword(s):  
Measurement Device ◽  
Coordinate Measurement ◽  
Accuracy Measurement ◽  
Test Standards ◽  
Machining Center ◽  
Displacement Sensors ◽  
Nc Machine ◽  
Nc Machine Tools ◽  
Measurement Devices ◽  
Five Axis

To measure motion accuracy, including that of the rotary axis of five-axis machining center that have been widely introduced into production sites recently, a device with three displacement sensors combined to measure the center position of the master ball was invented and will be added to the International Standard. Such measurement devices are not difficult to produce in principle, but the commercially available products are expensive. This study discusses a threedimensional (3D) coordinate measurement device with multiple displacement sensors, discussing it in terms of the test standards of the machines to which the device has been applied and in relation to devices which have been studied, developed, and released. Our measurement device is then designed and produced, and its measurement accuracy is confirmed.

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