Results 21 to 30 of about 9,250,019 (280)

Five-axis parallel mechanism system (PMS) CNC partial link control system based on modified inverse kinematic of 6-DOF UPS parallel manipulator

open access: yesJournal of Mechatronics, Electrical Power, and Vehicular Technology, 2023
This paper presents a control system algorithm for a five-axis parallel mechanism system (PMS) CNC milling machine based on a 6-DOF Stewart platform parallel manipulator with a universal-prismatic-spherical (UPS) configuration.
Nur Jamiludin Ramadhan   +2 more
doaj   +1 more source

Research on reliability comprehensive evaluation method of five-axis CNC machine tools based on AHP and extension theory

open access: yesThe Journal of Engineering, 2019
Currently, some five-axis CNC machine tools have almost achieved the same advanced level of the western countries in terms of functionality and performance. However, the reliability of system is much lower than similar foreign products.
Pengjia Wang, Hongjun Wang, Xiumei Chen
doaj   +1 more source

Identification Method of Geometric Deviations for Multi-Tasking Machine Tools Considering the Squareness of Translational Axes

open access: yesApplied Sciences, 2020
Some methods to identify geometric deviations of five-axis machining centers have been proposed until now. However, they are not suitable for multi-tasking machine tools because of the different configuration and the mutual motion of the axes. Therefore,
Yan Yao   +4 more
doaj   +1 more source

A novel geometric error identification methodology for the tilting head of five-axis machine tools based on double ball bar

open access: yesMATEC Web of Conferences, 2018
The paper proposes a novel geometric error identification methodology for the tilting head of five-axis machine tools using double ball bar(DBB).Firstly, based on the motion condition of the tilting head of five-axis machine tools, three measurement ...
Fan Jinwei, Wu Changjun, Li Zhongsheng
doaj   +1 more source

Improvement in the efficiency of the five-axis machining of aerospace blisks

open access: yesScience Progress, 2022
Blisks are not easily machined because of their complex curved surfaces and the high-precision requirements of surface machining. Lightweight alloy materials with superior mechanical properties, such as titanium alloy and stainless steel, are popular ...
Jeng-Nan Lee   +3 more
doaj   +1 more source

Design of a five-axis ultra-precision micro-milling machine—UltraMill. Part 1: Holistic design approach, design considerations and specifications [PDF]

open access: yes, 2009
High-accuracy three-dimensional miniature components and microstructures are increasingly in demand in the sector of electro-optics, automotive, biotechnology, aerospace and information-technology industries.
Wardle, F   +5 more
core   +1 more source

A five-axis CNC machining method of orthogonal variable transmission ratio face gear

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2014
In order to verify the validity of the design for the orthogonal variable transmission ratio face gear pair, a five-axis CNC machine tool was used to machine this gear.
Chao LIN   +4 more
doaj   +1 more source

Laser R-Test for Angular Positioning Calibration and Compensation of the Five-Axis Machine Tools

open access: yesApplied Sciences, 2021
The angular positioning error of the rotary stage causes low quality in milling various angles of a workpiece. This study proposes a solution that could improve these issues by using our Laser R-test for angular positioning calibration and compensation ...
Cao-Sang Tran   +2 more
doaj   +1 more source

Rotation-Angle Solution and Singularity Handling of Five-Axis Machine Tools for Dual NURBS Interpolation

open access: yesMachines, 2023
Dual NURBS interpolation has been proven an essential technique for high-speed precision machining of complex surfaces. The solution of rotation angles and their derivatives is the basis of kinematic transformation and feedrate optimization in dual NURBS
Pengpeng Sun   +4 more
doaj   +1 more source

Double Ballbar Measurement for Identifying Kinematic Errors of Rotary Axes on Five-Axis Machine Tools

open access: yesAdvances in Mechanical Engineering, 2013
This paper proposes a novel measuring method which uses double ballbar (DBB) to inspect the kinematic errors of the rotary axes of five-axis machine tool.
Wei Wang, Yi Zhang, Jianguo Yang
doaj   +1 more source

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