Results 191 to 200 of about 35,435 (213)

A novel method for measuring radial and axial errors in a cylindrical coordinate system using a combined double ball bar

Measurement Science and Technology, 2023
Abstract Multiaxis machine tools are widely used in manufacturing. The measurement of motion error is important to improve the machining accuracy of machine tools. A double ball bar (DBB), as a high-precision single-dimensional position reading device, is widely used to measure the motion error of the circular path of machine tools ...
Tao Sun, Wen Wang, Chuanyong Wang, Zhanfeng Chen, Zhiqian Sang, Keqing Lu, Kaifei Xu, Haimei Wu, Bing-Feng Ju   +8 more
openaire   +1 more source

Calibration of double ball bar (DBB) system

SPIE Proceedings, 2009
A double ball bar (DBB) system is an imperative device for measuring contouring accuracy, error characterization and interpretation of machine tool performance in volumetric workspace. The advantage that makes it popular and widely used by machine users is its quick performance checking, easy to use, portability and minimizing the down time of machine ...
Abdul Wahid Khan, Fei Liu, Wuyi Chen
openaire   +1 more source

Ball-bar based self-calibration technique for five-axis optical measurement system

SPIE Proceedings, 2012
This paper presents a ball-bar based self-calibration technique for a five-axis point laser optical measurement system. The system is composed of a high accuracy laser point sensor and five motion stages X, Y, Z, B, C. A kinematical system model of the 5-axis measurement system is presented to map the stages and sensor readouts to the target position
X. M. Du, Jiajun Gu, K. G. Harding
openaire   +1 more source

Kinematic Calibration of the 3-DOF Module of a 5-DOF Reconfigurable Hybrid Robot using a Double-Ball-Bar System

2006 IEEE/RSJ International Conference on Intelligent Robots and Systems, 2006
This paper deals with the kinematic calibration of a 3-DOF parallel mechanism using a Double-Ball-Bar (DBB) system. The mechanism forms the main body of a 5-DOF reconfigurable hybrid robot named TriVariant that is a modified version of the Tricept, achieved by integrating one of its three active limbs into the passive one. The first order error mapping
Tian Huang, Z. Y. Hong, Jiangping Mei, Derek G. Chetwynd   +3 more
openaire   +1 more source

Robot accuracy evaluation using a ball-bar link system

Robotica, 2011
SUMMARYRelatively large errors can exist in industrial robots as a result of mismatch between the controller model and the corresponding physical model. The paper outlines a novel approach for accuracy assessment and adjustment of multiaxis industrial robots through a low-cost ball-bar link system.
openaire   +1 more source

Patient satisfaction with ball and bar attachment systems

Dental Abstracts, 2005
openaire   +1 more source

A systemic approach to identify the volumetric and dynamic errors for five-axis machine tools with double ball-bar test

The International Journal of Advanced Manufacturing Technology
Nuodi Huang, Liyao Hou, Yang Zhang, Xu Zhang, Limin Zhu   +4 more
openaire   +1 more source

A reconfigurable mechanism model for error identification in the double ball bar tests of machine tools

International Journal of Machine Tools and Manufacture, 2021
Shudong Yu
exaly  

Measurement of spindle thermal errors in machine tool using hemispherical ball bar test

International Journal of Machine Tools and Manufacture, 2004
Seung-Han Yang, Ki-Hoon Kim
exaly  

Identification of geometric errors of rotary axis on multi-axis machine tool based on kinematic analysis method using double ball bar

International Journal of Machine Tools and Manufacture, 2017
Su-Juan Wang
exaly