Defects Cause Analysis Generated by Five-Axis NC Machine Tool and Optimization

2014 ◽  
Vol 687-691 ◽  
pp. 353-358
Author(s):  
Jin Wei Fan ◽  
Hong Xia Yan ◽  
Yu Hang Tang ◽  
Yi Song
Keyword(s):  
Machine Tool ◽  
Motion Error ◽  
Nc Machine Tool ◽  
Analysis Theory ◽  
Great Responsibility ◽  
Nc Machine ◽  
Error Terms ◽  
Tool Motion ◽  
Multi Body ◽  
Five Axis

In view of defects-"chew cutting" generated by the five-axis nc machine tool in the process of machining the S sample, the machine tool motion error model is established based on multi-body system theory. After that,combining sensitivity analysis theory with the research of machine tool processing defect causes.Then find out the main error terms which take great responsibility of machining defects and optimize related motion components,to meet accuracy requirements before leaving the factory.

Development of Measurement for Motion Accuracy of 5 Axis NC Machine Tool

2008 ◽  
Vol 2 (2) ◽  
pp. 111-118 ◽  
Author(s):  
Tomoyuki Saiki ◽  
◽  
Masaomi Tsutsumi ◽  
Hiroshi Suzuki ◽  
Masahide Kouya ◽  
...  
Keyword(s):  
Machine Tool ◽  
Measurement System ◽  
Machine Tools ◽  
Circular Motion ◽  
Work Piece ◽  
Accuracy Measurement ◽  
Nc Machine Tool ◽  
Nc Machine ◽  
Tool Motion ◽  
Five Axis

In terms of the realization for high accurate and effective machining of complicated shape having under cut shape and free formed surface, five axis controlled machine tools become indispensable because they have any tool position and attitude to avoid the collision between machine tool elements and work piece. In order to estimate the motion accuracy of NC machine tool, various kinds of certificate methods like circular cone cutting test prescribed with NAS and DBB method using the circular motion have been developed and standardized. These methods are mainly used for the motion testing of three-axis NC machine tools and therefore new method and measuring equipment for five-axis NC machine tool is needed. This study aims at developing the motion accuracy measurement system which can measure various kinds of motions like linier motion, circular motion and continuous curved motion under simultaneous five-axis controlling and establishing the compensate method of tool motion. Consideration is added from the viewpoint of motion accuracy using measurement system developed in this report in case simultaneous five-axis control motion command value from CL data.

Numerical Control Machine Tool Motion Simulation and Analysis of Parts of the Crawling Phenomenon

2014 ◽  
Vol 971-973 ◽  
pp. 592-595 ◽  
Author(s):  
Ming Yin ◽  
Wen Tong Cheng ◽  
Li Juan Bai ◽  
Lan Lan Guo
Keyword(s):  
Machine Tool ◽  
Numerical Control ◽  
Mechanical Transmission ◽  
Feed System ◽  
Control Machine Tool ◽  
Nc Machine Tool ◽  
Dynamic Friction Coefficient ◽  
Damped Oscillations ◽  
Nc Machine ◽  
Tool Motion

NC machine creeping failure usually occurs in the mechanical part and feed servo system of NC machine tool feed system, because of low speed creeping phenomenon often depends on the characteristics of mechanical transmission parts. Crawling is generally due to transmission of machine tool stiffness is insufficient, friction and dynamic friction coefficient difference and friction damped oscillations caused by too small. This paper establishes the physical model and the mathematical model, through theoretical analysis and numerical simulation of machine movement components that crawl main reason, put forward to prevent the moving parts of the main measures of creeping.

scholarly journals Research on five axis NC Machining Simulation Based on VERICUT

2015 ◽  
Vol 11 (7) ◽  
pp. 51
Author(s):  
Zhihua Yuan ◽  
Jipeng Wang ◽  
Xiaolong Kong ◽  
Yuhui Hu
Keyword(s):  
Machine Tool ◽  
Program Code ◽  
Nc Machine Tool ◽  
Nc Program ◽  
Simulation Based ◽  
Nc Machine ◽  
Machine Parts ◽  
Nc Machining Simulation ◽  
Time Required ◽  
Five Axis

The structure of five axis machine tool is complex and expensive, especially in the processing of complex and sophisticated parts. It is prone to produce the phenomenon of overcutting or undercutting between the machine parts and the knives or the machine tool , which will cause serious damage or even grievous scrap on the machine tool . With the help of VERICUT 7.0 Simulation of NC machine tool, you can modify and optimize the NC program code, shortening the real processing time required and improving the economic benefit of the company remarkably.

The Integration and Innovation Design of Single Chip Computer and NC Machine Tool Control

2014 ◽  
Vol 926-930 ◽  
pp. 478-481
Author(s):  
Jun Liang Liu ◽  
Zi Lun Li ◽  
Luo Cheng Li ◽  
Zi Jie Song
Keyword(s):  
Machine Tool ◽  
Error Compensation ◽  
Body System ◽  
Single Chip ◽  
Nc Machine Tool ◽  
Implementation Techniques ◽  
Single Chip Computer ◽  
Nc Machine ◽  
Compensation Device ◽  
Multi Body

Against to the problem of widely used of software error compensation, raises error compensation device to instead of PC to realize erro r compensation. And introduces multi-body system relating to error compensation, represents the feasibility and implementation techniques of software error compensation using SCM. This program will show great values in the field of CNC.

Analysis on Geometry Error Software Compensation Technology Model of Gantry Five-Axis NC Machine Tool

2012 ◽  
Vol 241-244 ◽  
pp. 1470-1474 ◽  
Author(s):  
Hua Gang Han ◽  
Xiao Lin Hu ◽  
Ying Chun Li ◽  
Feng Shou Shang Guan
Keyword(s):  
Error Compensation ◽  
Machine Tools ◽  
Body System ◽  
Nc Machine Tool ◽  
Result Show ◽  
Nc Machine ◽  
Nc Machine Tools ◽  
Multi Body ◽  
Geometry Error ◽  
Five Axis

Based on multi-body system, the error model of gantry five-axis NC machine tools was discussed. The calculate method of precision process equation and NC instruction has been derived out. Based the above research works，make a emulate by using of geometry error compensation soft-ware. The result show machining precision can be improved through the error compensation method which is concluded in this paper.

The Research of Nonlinearity Error Control on Five-Axis Machining Post Processor

2011 ◽  
Vol 311-313 ◽  
pp. 2353-2357 ◽  
Author(s):  
Qing Chun Tang ◽  
Jun He ◽  
Lan Lan Gao ◽  
Yu Huo Lai ◽  
Xue Ming Fang
Keyword(s):  
Machine Tool ◽  
Error Compensation ◽  
Error Control ◽  
Estimation Method ◽  
Linear Interpolation ◽  
Nonlinearity Error ◽  
Motion Error ◽  
Nonlinear Error ◽  
Tool Motion ◽  
Five Axis

Abstract：This paper analyses the causes and effective estimation method of nonlinear error; By machine tool motion solution, established a five-axis machine tool BV100 motion transformation mathematical models, combined with linear interpolation principle established the error compensation and nonlinear motion error model of the machine tool .by VB language, developed nonlinear error compensation function of special post process; and through the impeller cutting experiment validate the processor is correct and practical.

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