Results 131 to 140 of about 1,334 (173)

Non-bar, an optical calibration system for five-axis CNC machine tools

International Journal of Machine Tools and Manufacture, 2012
Abstract Five-axis CNC machine tools comprise three linear axes and two rotary axes, enabling the fabrication of complex workpieces, such as dies, turbo blades, and cams. Improved measurement methods are continually being researched to increase the accuracy of five-axis CNC machine tools. This paper presents a novel optical calibration system, called
C -H Liu
exaly   +2 more sources

Pre-compensation of contour errors in five-axis CNC machine tools

International Journal of Machine Tools and Manufacture, 2013
Abstract This paper presents an analytical prediction and compensation of contouring errors in five-axis machining of splined tool paths. The position commands are first fitted to piecewise quintic splines while respecting velocity, acceleration and jerk continuity at the spline joints.
Ke Zhang, Alexander Yuen, Yusuf Altintas
openaire   +1 more source

Modeling of the Dynamic Contour Error of Five-Axis CNC Machine Tools

Dynamic Systems and Control, 1999
Abstract This paper focuses on the dynamic contour errors due to the coordinated five-axis motion. The dynamic contour error for tracking a contour is defined as the difference between the desired contour and the actual responded tool trajectory to the contouring motion command.
Rong-Shine Lin, C. W. Hu
openaire   +1 more source

Modelling geometric and thermal errors in a five-axis cnc machine tool

International Journal of Machine Tools and Manufacture, 1995
Abstract The total volumetric error within the workspace of a machine tool is induced by the propagation of both scalar and position dependent geometrical errors, as well as time-variant thermal errors. This paper presents a compact volumetric error model which can be used as a basis for a practical compensation scheme.
A.K. Srivastava, S.C. Veldhuis, M.A. Elbestawit   +2 more
openaire   +1 more source

Design of Power System of Five-Axis CNC Machine Tool

2020
The power system of five-axis CNC machine tool is designed to determine the maximum machining working space with alloy steel material and maximum overall dimension. Based on the analysis and calculation of machining process parameters, the cutting force, cutting speed, power and torque are checked.
openaire   +1 more source

Tool orientation planning for five-axis CNC machining of open free-form surfaces

Journal of Systems Science and Complexity, 2013
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Jibin Zhao, Bo Zhong, Qiang Zou 0007, Hongjun Liu   +3 more
openaire   +1 more source

Error Source Identification of Machining Accuracy of Five-Axis Linkage CNC Machine Tools

Advanced Materials Research, 2013
The error sources of machining accuracy of CNC machine tools including geometric error, thermal error, system error and error of load control etc. The error source affect the relative position of the cutting tool and the workpiece by the dynamic motion, and then affect the machining accuracy of the workpiece. By trial cutting method, "S" test part is a
Zhi Ping Guo, Zhi Yong Song, Rong Bo Shi
openaire   +1 more source

Double ballbar test for the rotary axes of five-axis CNC machine tools

International Journal of Machine Tools and Manufacture, 2007
In this paper a new method that uses the double ballbar to inspect motion errors of the rotary axes of five-axis CNC machine tools is presented. The new method uses a particular circular test path that only causes the two rotary axes to move simultaneously and keeps the other three linear axes stationary. Therefore, only motion errors of the two rotary
W.T. Lei, M.P. Sung, W.L. Liu, Y.C. Chuang   +3 more
openaire   +1 more source

Research and Implementation of Tool Space Compensation Technology of Five Axis CNC Machine

Advanced Materials Research, 2014
This paper analyzes the structure and classification of five-axis CNC machine, According to the nonlinear error analysis, tool center point and put heart point location model is established and derived the space of five-axis CNC machine tool cutting tool length compensation algorithm formula;Combined with two-dimensional CNC machine tool compensation ...
Chuan Jun Li, Qiang Liu, Huan Liu
openaire   +1 more source

An efficient error compensation method for coordinated CNC five-axis machine tools

International Journal of Machine Tools and Manufacture, 2017
Abstract The paper introduces a new automatic drilling and riveting system for aircraft assembly which is composed of two five-axis machine tools in coordination. As a dual-machine system, relative position and orientation accuracy of coordinated machines is the decisive factor for high fastening quality.
Dan Zhao, Yunbo Bi, Yinglin Ke
openaire   +1 more source