Research on Automatic Programming and Process Diagnosis in On-Machine Measurement

2015 ◽  
Vol 789-790 ◽  
pp. 531-535
Author(s):  
Gui Jiang Duan ◽  
Shuai Gao ◽  
Zhang Dong Cui
Keyword(s):  
Data Exchange ◽  
Numerical Control ◽  
Practical Case ◽  
Automatic Programming ◽  
Process Diagnosis ◽  
Nc Machine Tool ◽  
Nc Machine ◽  
Essential Function ◽  
Complex Parts

Automatic programming and process diagnosis are the essential function to drive the Numerical Control (NC) machine tool with probes to measure the products and evaluate the quality of process in every inspection procedure based on on-machine measurement (OMM), especially in the complex parts measuring, which can avoid the products unqualified and promote the efficiency of manufacture and inspection. In this paper, the method of automatic programming, the data exchange of measurement and the principle of process diagnosis are discussed. With a practical case based on FANUC, the effectiveness and efficiency of the method raised in this paper is validated.

Simulation of the Mathematical Model for Lathe Tool Cutter

2010 ◽  
Vol 156-157 ◽  
pp. 1297-1300
Author(s):  
Xue Bin Liu ◽  
Wei Zhao ◽  
Su Chang Ma ◽  
Chong Ning Li
Keyword(s):  
Mathematical Model ◽  
Machine Tool ◽  
Virtual Environment ◽  
Simulation Software ◽  
Numerical Control ◽  
Nc Machine Tool ◽  
Nc Machine ◽  
The Mathematical Model ◽  
Lathe Tool

The numerical controlling simulation of process indicates a mapping of NC machine tool in the virtual environment, and it includes the technique of manufacture, the theories of NC machine tool, CAD, CAM, and the technique of modeling and simulating. The people can apperceive the virtual environment of 3D simulated model developed by computers, carry the NC process of parts in virtual condition before the true doing when we design or alter a project, inspect the exactitude and justification of NC program, evaluate and optimize the project of process. Thereby the intention, abridging the time of developing products, depressing the cost of manufacture, advancing the quality of products and the efficiency of Production, can be finally achieved. With the rapid development of NC technique and computer graphical technology and the extensive application of computer, NC simulation technology provide an effective tool in order to validate the NC machining program and forecast the machine process. The main purpose of this dissertation is to derive the mathematical model and to simulate the lathe tool cutter. In order to enhance the operating efficiency and the demonstration quality of the numerical control lathe simulation software, the analysis has compared a kind of shape about lathe tool cutter-- PARALLELOGRAM, has established the cutter forms, thus inferred the mathematical model of the numerical control lathe simulation on the lathe tool cutter. The cutter is display in the DELPHI software development platform based on the environments of GLSence using this derived mathematical model.

Research on Kinematic Analysis and Post Processing Arithmetic for NC Machine Tool for Bonnet Tool Polishing

2007 ◽  
Vol 364-366 ◽  
pp. 707-712
Author(s):  
Ying Xue Yao ◽  
Shun Zhou Yu ◽  
Da Gang Xie
Keyword(s):  
Machine Tool ◽  
Metal Cutting ◽  
Transformation Method ◽  
Programming System ◽  
Automatic Programming ◽  
Post Processing ◽  
Nc Machine Tool ◽  
Nc Programming ◽  
Nc Machine ◽  
Optical Polishing

Bonnet tool polishing, combined traditional optical polishing technique with modern NC technology, is an novel optical polishing technique. As the motion control and material removal process is different from metal cutting NC machine tool, the NC programming for bonnet tool polishing NC machine tools cannot be carried out with commercial CAM software. This paper analyses the kinematics of feed mechanism and precession mechanism using coordinate transformation method and sets up the feed and precession kinematics equations. The arithmetic of post processing applied to NC automatic programming system is proposed according to kinematics equations and detail bonnet tool polishing technique.

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.

Design and Realization of Helical Rotor NC Automatic Programming System

2012 ◽  
Vol 605-607 ◽  
pp. 1469-1473
Author(s):  
Feng Chen ◽  
Liang Yao Gu ◽  
Yue Yang ◽  
Chun Yang Jia
Keyword(s):  
Design Method ◽  
Numerical Control ◽  
Programming System ◽  
Automatic Programming ◽  
Geometrical Properties ◽  
Object Oriented Design ◽  
High Efficient ◽  
Nc Machine ◽  
Rotor Surface ◽  
Migration Method

Helical rotor is a core component of helical-lobe compressor. Analysis was made on the geometrical properties of tooth curves. Using standard spherical milling cutter on 4-axis NC machine, normal migration method was used to rotor surface processing. Based on the generation characteristics of helical rotor surface, object-oriented design method is used to achieve automatic programming system of helical rotor. The calculation of helical rotor end face profile lines and cutter location point are realized, and over cutting analysis is carried out to generate high efficient numerical control processing program.

Geometric Error Compensation Methods of Numerical Control Machine Tool

2012 ◽  
Vol 426 ◽  
pp. 239-242
Author(s):  
Xiao Jun Wang ◽  
Xiao Guang Fu
Keyword(s):  
Machine Tool ◽  
Error Compensation ◽  
Reference Value ◽  
Geometric Error ◽  
Numerical Control ◽  
Control Machine Tool ◽  
Nc Machine Tool ◽  
Machining Center ◽  
Compensation Methods ◽  
Nc Machine

In this paper the characteristics of geometric errors is discussed in detail, error compensation methods used in productive practice and relevant examples are given. Finally, the application of error compensation in different situation is discussed according to the characteristics of machining center. The machine accuracy can be improved by error compensation. It has important practical reference value for reasonable use and maintaining of NC machine tool.

Research and Design on Green Reconfigurable NC Machine Tool

2010 ◽  
Vol 102-104 ◽  
pp. 866-869 ◽  
Author(s):  
You Jun Wang ◽  
Fu Jia Wu ◽  
Fang Xie ◽  
Kai Yao ◽  
Zhong Ming Hou
Keyword(s):  
Machine Tool ◽  
Modular Design ◽  
Numerical Control ◽  
Deep Hole ◽  
Nc Machine Tool ◽  
Nc Machine ◽  
Reconfigurable Machine Tool ◽  
The Relationship ◽  
Research And Design ◽  
Module Partition

The thesis researched the relationship between green design and reconfigurable on NC machine tool, and expatiated that the development of the reconfigurable machine tools is essential. This article has carried on the analysis from the deep hole components classification and the formed movement craft two aspects to the deep hole components race. The reconfigurable deep hole machine tool was to carry on the modular design based two aspects for the module partition and reconstructable analyze, solved the key technologies the machine tool modulation design. From the machine tool bed module, the head of machine tool module, the cutting tool auxiliary system and the numerical control system four aspects, to design and research on reconfigurable machine tool, solved the difficult design problem which the part reconfigurable designed.

Research of Fault Diagnosis System for NC Machine Tool

2012 ◽  
Vol 220-223 ◽  
pp. 364-367 ◽  
Author(s):  
Lin Yang ◽  
Wei Wu ◽  
Rui Nan Wu
Keyword(s):  
Fault Diagnosis ◽  
Expert System ◽  
Design Method ◽  
Numerical Control ◽  
Theoretical Research ◽  
Nc Machine Tool ◽  
C Programming ◽  
Nc Machine ◽  
Machine Interface ◽  
Control Machine

As the theoretical research and practical application of the key technology and bottlenecks, Fault diagnosis technology get the focus of manufacturing field at home and abroad and have achieved some innovative research achievements[1]. This paper analyzed the failure causes of numerical control machine, linked the fault tree and fault diagnosis expert system knowledge base, develops numerical control machine fault diagnosis expert system which has a friendly man-machine interface, reasonable reasoning method and explanation function by using C programming language and object-oriented program design method.

scholarly journals Study of the Dynamic Characteristics of Ball Screw with a Load Disturbance

2016 ◽  
Vol 2016 ◽  
pp. 1-10 ◽  
Author(s):  
Zhe Du ◽  
Xiao-Lan Zhang ◽  
Tao Tao
Keyword(s):  
Machine Tool ◽  
Dynamic Characteristics ◽  
Numerical Control ◽  
Hertzian Contact ◽  
Ball Screw ◽  
Machining Accuracy ◽  
Contact Deformation ◽  
Nc Machine Tool ◽  
Load Disturbance ◽  
Nc Machine

The dynamic character of ball screw is the key factor that influences the machining accuracy of numerical control (NC) machine tool. To improve the dynamic characteristics of the NC machine tool, it is necessary to study the dynamic characteristics of a ball screw. In this paper, the kinematics of a ball screw mechanism (BSM) are studied to expound the dynamic process of the drive, and the load disturbance is considered to analyze the contact deformation based on the Hertzian contact theory. The velocity relationships among the ball, screw, and nut are analyzed, and the influence of the contact deformation on the dynamic characteristics is simulated and investigated experimentally. The results show that the relationships between the contact deformation, which is affected by the material characteristics, the contact angle, and the load of nut are nonlinear. The contact deformation is a factor that cannot be ignored when considering the dynamic machining error of high-speed and high-precision machine tools.

Research on the 840D NC Machine Tool Production Process Monitoring and Management

2014 ◽  
Vol 577 ◽  
pp. 421-424
Author(s):  
Le Ping Chu ◽  
De Ming Xiao ◽  
Zai Yu Chen ◽  
Cheng Rong Pian ◽  
Nan Wu ◽  
...  
Keyword(s):  
Machine Tool ◽  
Production Process ◽  
Machine Tools ◽  
Numerical Control ◽  
Nc System ◽  
Nc Machine Tool ◽  
Nc Machine ◽  
Nc Machine Tools ◽  
Plc Program ◽  
Status Data

According to the communication principle of 840D numerical control (NC) system and internal data structure, the PLC program is developed to make 840D system state data transmit to the PC with the MPI channels; production status data real-time monitoring system based on 840D NC machine tools is developed, meanwhile, the monitoring and data management for NC machine tool production process status is realized.

Correct Use and Maintenance of Nc Machine Tools

2014 ◽  
Vol 651-653 ◽  
pp. 676-679
Author(s):  
Quan Fang Sun ◽  
Jun Ling Zhang
Keyword(s):  
Control System ◽  
Machine Tool ◽  
Machine Tools ◽  
Numerical Control ◽  
Numerical Control System ◽  
Nc Machine Tool ◽  
Important Index ◽  
Nc Machine ◽  
Nc Machine Tools ◽  
Reasonable Use

A country's level of Nc machine tool and ownership, is to measure the level of manufacturing and industrial modernization level of important indicators, is also an important index to measure national comprehensive competitiveness. Therefore, how to better use and maintenance of Nc machine tool is an important issue. This paper introduced how to reasonable use of Nc machine tools, as well as the use of the numerical control system and inspection.

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