A Design for a Novel Open, Intelligent and Integrated CNC System Based on ISO 10303-238 and PMAC

In order to meet the development demands for high-speed and high-precision of Computer Numerical Control (CNC) machine tools, the equipped CNC systems begin to employ the technical route of software hardening. Making full use of the advanced performance of Large Scale Integrated Circuits (LSIC), this paper puts forward using Field Programmable Gates Array (FPGA) for the functional modules of CNC system, which is called Intelligent Software Hardening Chip (ISHC). The CNC system architecture with high performance is constructed based on the open system thought and ISHCs. The corresponding programs can be designed with Very high speed integrate circuit Hardware Description Language (VHDL) and downloaded into the FPGA. These hardening modules, including the arithmetic module, contour interpolation module, position control module and so on, demonstrate that the proposed schemes are reasonable and feasibility.

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The study of principal axis controller in open CNC system

2017 8th International Conference on Mechanical and Intelligent Manufacturing Technologies (ICMIMT) ◽

10.1109/icmimt.2017.7917441 ◽

2017 ◽

Author(s):

Lin Zhao

Keyword(s):

Principal Axis ◽

Cnc System ◽

Open Cnc ◽

Open Cnc System

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An Hybrid Expert Fault Diagnosis System for CNC System

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.189-193.1562 ◽

2011 ◽

Vol 189-193 ◽

pp. 1562-1566

Author(s):

You Dong Chen ◽

Jin Jun Ye ◽

Hua Song Min ◽

Mei Hua Han

Keyword(s):

Fault Diagnosis ◽

System Reliability ◽

Domain Knowledge ◽

Fault System ◽

Rule Base ◽

Case Based Reasoning ◽

Cnc System ◽

System Diagnosis ◽

Fault Diagnosis System ◽

Sqlite Database

The CNC system is a complex mechatronics system, which make it difficult to diagnose fault. Expert system for fault diagnosis that utilizes domain knowledge and the profiles of experts to fix the problem of the complex system has become an important issue. A hybrid expert fault system combining the rule-base reasoning (RBR) with case-based reasoning (CBR) for CNC system is proposed. The combination can trouble-shoot rapidly, improve the CNC system reliability and maintainability. The hybrid system is implemented by using QT and SQLITE database. The experiment result of the system shows that the system diagnosis efficiently and accurately.

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Study on Grinding Technology of Electrical Discharge Grinding of Curve Edge Polycrystalline Diamond

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.304-305.206 ◽

2006 ◽

Vol 304-305 ◽

pp. 206-209 ◽

Cited By ~ 1

Author(s):

Gang Liu ◽

Ming Chen ◽

Z.G. Hu ◽

X.F. Zhu ◽

H. Xu ◽

...

Keyword(s):

Surface Quality ◽

Electrical Discharge ◽

High Efficiency ◽

Practical Significance ◽

Cnc System ◽

Milling Cutter ◽

Curve Edge ◽

Grinding Machine ◽

Five Axis ◽

Pcd Tools

PCD tools, especially curve edge PCD compound tools are used widely in machining nonferrous and non-metal materials with high efficiency and precision because of their excellent cutting properties. But high quality grinding of PCD tools is the uppermost obstacle in application because there are great difficulties to profile and sharpen edge in grinding, especially for milling cutter and drill with curve edge. This paper studied technology of wire EDG curve edge PCD compound tools by wire electrical discharge grinding machine with five-axis CNC system. The grinding quality was evaluated by scanning electron microscope (SEM) and roughometer. Three steps processing technique (roughing, finishing and fine finishing) and optimal process parameters of wire EDG PCD tools were recommended after considering synthetically the surface quality, precision and machining efficiency. The results met the requirement of high surface quality, precision and efficiency. This paper also applied successfully the optimal technology to grind a PCD milling cutter with outer and inner blade by electrical discharge grinding machine with five-axis CNC system. By the optimal parameters, the process yielded high precision of ±4.3µm and low roughness of 0.30µm. Experiment results have great practical significance to the high precise and efficient wire EDG of PCD tools.

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Research on the data hungry problem in CNC system based on the architecture of Real-time multitask

2011 3rd International Conference on Computer Research and Development ◽

10.1109/iccrd.2011.5764093 ◽

2011 ◽

Cited By ~ 2

Author(s):

Haitao Hong ◽

Dong Yu ◽

Xiaohui Zhang ◽

Long Chen

Keyword(s):

Real Time ◽

Cnc System

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Semantic Interoperability of GD&T Data Through ISO 10303 Step AP242

Volume 2B: 42nd Design Automation Conference ◽

10.1115/detc2016-60133 ◽

2016 ◽

Cited By ~ 2

Author(s):

Adarsh Venkiteswaran ◽

Sayed Mohammad Hejazi ◽

Deepanjan Biswas ◽

Jami J. Shah ◽

Joseph K. Davidson

Keyword(s):

Data Exchange ◽

Smart Manufacturing ◽

Context Model ◽

Product Model ◽

Shape Information ◽

Computer Aided Process Planning ◽

Model Based ◽

Computer Aided ◽

Iso 10303 ◽

Manufacturing Applications

Industries are continuously trying to improve the time to market through automation and optimization of existing product development processes. Large companies vow to save significant time and resources through seamless communication of data between design, manufacturing, supply chain and quality assurance teams. In this context, Model Based Definition/Engineering (MBD) / (MBE) has gained popularity, particularly in its effort to replace traditional engineering drawings and documentations with a unified digital product model in a multi-disciplinary environment. Widely used 3D data exchange models (STEP AP 203, 214) contains mere shape information, which does not provide much value for reuse in downstream manufacturing applications. However, the latest STEP AP 242 (ISO 10303-242) “Managed model based 3D engineering” aims to support smart manufacturing by capturing semantic Product Manufacturing Information (PMI) within the 3D model and also helping with long-term archival. As a primary, for interoperability of Geometric Dimensions & Tolerances (GD&T) through AP 242, CAx Implementor Forum has published a set of recommended practices for the implementation of a translator. In line with these recommendations, this paper discusses the implementation of an AP 203 to AP 242 translator by attaching semantic GD&T available in an in-house Constraint Tolerance Graph (CTF) file. Further, semantic GD&T data can be automatically consumed by downstream applications such as Computer Aided Process Planning (CAPP), Computer Aided Inspection (CAI), Computer Aided Tolerance Systems (CATS) and Coordinate Measuring Machines (CMM). Also, this paper will briefly touch base on the important elements that will constitute a comprehensive product data model for model-based interoperability.

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Automatically Recording of Machining Tasks and Status

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.718-720.1290 ◽

2013 ◽

Vol 718-720 ◽

pp. 1290-1294

Author(s):

Zu Wen Lin ◽

Bin Yao ◽

Ming Jun Peng ◽

Yong Zhuo ◽

Dong Sheng Zhang ◽

...

Keyword(s):

Data Acquisition ◽

Real Time ◽

Basic Data ◽

Component Technology ◽

Cnc System ◽

System A ◽

Com Component ◽

Mes System

Record machining tasks and machine status automatically based on one development kit for CNC system. A custom control is developed based on COM component technology to view recorded machining tasks and machine status on the CNC screen real-time. The function of data acquisition implemented by this article, can not only provide the basic data for the MES system, but also facilitate the operators to view the machining tasks and machine status.

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