Study for Vibration Measurement and Failure Diagnostics System for CNC Milling Machines Based on LabVIEW

2011 ◽  
Vol 189-193 ◽  
pp. 1180-1183
Author(s):  
Shuang Li An ◽  
Ya Fei He ◽  
Rui Qian ◽  
Xiao Hang Liu
Keyword(s):  
Mass Production ◽  
Machine Tools ◽  
Vibration Measurement ◽  
Open Architecture ◽  
Work Piece ◽  
Milling Machine ◽  
Cnc Milling ◽  
Cnc Milling Machine ◽  
Milling Machines ◽  
Diagnostics System

This paper presents a proposed system based on LabVIEW for data acquisition and monitoring of manufacturing process in machine tools with CNC. It was applied to evaluate work piece dimension and failure analysis in real time. The proposed system was developed and tested initially in a CNC milling machine with open architecture. Furthermore, it can be extended to other machines and processes, lines or cells of mass production as well. And it was applied in some factories and workshops now.

scholarly journals Modular fastening system and tool–holder working unit for incremental forming

2019 ◽  
Vol 299 ◽  
pp. 05005
Author(s):  
Melania Tera ◽  
Claudia–Emilia Gîrjob ◽  
Cristina–Maria Biriș ◽  
Mihai Crenganiș
Keyword(s):  
Machine Tools ◽  
Incremental Forming ◽  
Industrial Robot ◽  
Industrial Robots ◽  
Cnc Milling ◽  
End Effector ◽  
Tool Holder ◽  
Cnc Milling Machine ◽  
Milling Machines ◽  
Sheet Metal Workpiece

Incremental forming can be usually unfolded either on CNC milling machine–tools or serial industrial robots. The approach proposed in this paper tackles the problem of designing a modular fastening system, which can be adapted for both above mentioned technological equipment. The fastening system of the sheet–metal workpiece is composed of a fixing plate and a retaining plate. The fixing and retaining plates will be made up of different individual elements, which can be easily repositioned to obtain different sizes of the part. Moreover, the fastening system has to be able to be positioned either horizontally (to be fitted on CNC milling machines) or vertically (to be fitted on industrial robots. The paper also presents the design of a tool–holder working unit which will be fitted on KUKA KR 210 industrial robot. The working unit will be mounted as end–effector of the robot and will bear the punch, driving it on the processing toolpaths.

scholarly journals STEP-NC Compliant Intelligent CNC Milling Machine with an Open Architecture Controller

2021 ◽  
Vol 11 (13) ◽  
pp. 6223
Author(s):  
Mahanama Dharmawardhana ◽  
Asanga Ratnaweera ◽  
Gheorghe Oancea
Keyword(s):  
Condition Monitoring ◽  
Numerical Control ◽  
Open Architecture ◽  
Shop Floor ◽  
Raspberry Pi ◽  
Cutting Condition ◽  
Milling Machine ◽  
Cnc Milling ◽  
Cnc Milling Machine ◽  
Cad Cam

A STEP-NC or ISO 14649 compliant machine controller is developed, using Open Architecture Control technology for a three-axis Computer Numerical Control milling machine in this research. The controller is developed on a Raspberry Pi single-board computer, using C++ language. This new development is proposed as a low-cost alternative to ISO6983 standard, ensuring continuous integration in the CAD/CAM/CNC chain in machining; thus, it broadens the spectrum of problems handled by conventional CNC systems. The new machine controller is intelligent enough to extract geometrical and manufacturing parameters, cutting tool data, and material data from the STEP-NC file. Accordingly, tool paths for machining can be generated in the controller itself. The shop floor level modification of parameters and the possibility of regeneration of new toolpaths is an added advantage of this new controller. The modified or improved version of the STEP-NC file can be sent back to the CAD/CAM system to close the CAD/CAM/CNC chain. Machine condition monitoring can be achieved by connecting sensors through an available slave I/O board. In the present development, the current drawn by each servo motor is fed back to the controller for cutting condition monitoring. A laboratory scale three-axis CNC milling machine is developed to test the performance of the newly developed controller. The accuracy of positioning, perpendicularity of axes and linearity of this machine are experimentally verified through standard tests. The STEP-NC compliance of the controller is tested and verified, using a STEP-NC program derived based on a sample program given in ISO 14649 standard.

scholarly journals Technological Development of CNC Machine Tool for Machining Soft Materials

2021 ◽  
Author(s):  
Laura Tobon Ospina ◽  
Carlos Alberto Vergara Crismatt ◽  
Juan David Arismendy Pulgarin ◽  
Sebastian Correa Zapata ◽  
Yomin Estiven Jaramillo Munera ◽  
...  
Keyword(s):  
Machine Tools ◽  
Technological Development ◽  
Soft Materials ◽  
Free Software ◽  
Milling Machine ◽  
Cnc Milling ◽  
Cnc Machine ◽  
Cnc Milling Machine ◽  
Metalworking Industry ◽  
A Company

In recent years, the process carried out in the GACIPE research group is related to the development of the base technology of the manufacturing and metalworking industry. The machine tools that are vital for the consolidation and competitiveness of the industry in any country has been approached through two approaches: The design and construction of the new machine. In this aspect, the modeling of the structure and the displacements’ parameterization allows defining the precision of the movements and the rational use of energy. The adaptation and repowering of a used machine. In this approach, the recovery and technological updating proposed to recover its performance, becoming an excellent alternative to improving and perfecting the production of a company. In both cases, the CNC milling machine tools are controlled by free software. The application proposed is mechanized in soft materials.

scholarly journals Failure Mode and Effect Analysis (FMEA) of Pneumatic System of CNC Milling Machine

2021 ◽  
Vol 65 (1) ◽  
pp. 14-18
Author(s):  
Yudi Dwianda ◽  
Keyword(s):  
Failure Mode ◽  
Pneumatic System ◽  
Milling Machine ◽  
Cnc Milling ◽  
Effect Analysis ◽  
Cnc Milling Machine ◽  
Milling Machines ◽  
Potential Failure ◽  
Fmea Method ◽  
The Right

The purpose of this study is to determine the type of failures, the causes, as well as efforts and proposed actions that can be taken to improve the performance of the pneumatic system of CNC milling machines. The Failure Mode and Effect Analysis (FMEA) method is used to find priority problems through Risk Priority Number (RPN) for pneumatic system of components of CNC milling machine. The results of critical component analysis were a leakage occurs in pneumatic valve component, which the most critical risk of the RPN value. It potential failure was caused the high humidity and poor air quality from the compressor, which the RPN of 392 and 384 respectively. The proposed improvement was the replacement of damaged components and optimizing the preventive maintenance, which follow the right operation and maintenance procedures recommended as suggested by the manufacturer.

Practical experience in eliminating distortions portal milling machines for machining automotive parts

2021 ◽  
Keyword(s):  
Machine Tool ◽  
Automotive Industry ◽  
Machine Tools ◽  
Practical Experience ◽  
Machine Design ◽  
Milling Machine ◽  
Cnc Milling ◽  
Portal Frame ◽  
Milling Machines ◽  
Automotive Parts

This article analyzes the most typical reasons for the appearance of distortions in the design of the n-shaped portal of the machine, such as the skewing of the portal relative to the guides and the skewing of the spindle axis relative to the machine table that arise during assembly, and also shows methods for detecting and detecting such distortions in the machine design. The article describes the practical experience of the assemblers and adjusters of machine tools manufactured in "Modular Mechanics" Ltd., to eliminate the skewing of the portal frame of CNC milling machines when assembling and assembling the construction of the U-shaped portal. Keywords special machinery, automotive industry, milling machine tool, deviation, machine table, portal, movements, skew, assembly, sensors

scholarly journals The design of the CNC milling machine

2019 ◽  
Vol 254 ◽  
pp. 01003 ◽  
Author(s):  
Piotr Boral
Keyword(s):  
Machine Tool ◽  
Machine Tools ◽  
Machine Building ◽  
Frame Structure ◽  
Cnc Machine Tools ◽  
Milling Machine ◽  
Cnc Milling ◽  
Cnc Machine ◽  
Cnc Milling Machine ◽  
Rigid Frame

CNC machine tools are currently predominating in the machine-building industry. Generally, these machine tools are equipped with control systems supplied by the world's leading manufacturers, such as Siemens, Fanuc or HeidenHein, and are very expensive. In parallel, many cheap amateur and semi-professional CNC machine tool solutions are being developed. Below, a CNC milling machine of welded construction is described, which is intended to be, at the same time, a test stand. The design of the milling machine is based on steel closed sections of a large cross-section and a big wall thickness. This has allowed a rigid frame structure to be obtained. To obtain high displacement accuracy, high-accuracy profiled rail slideways have been used, along which pre-stressed linear ball bearings move. The machine tool has been furnished with a fourth numerically controlled axis, which is demountable.

Load Spectrum Research of CNC Machine Tools Based on the Machining Information

2013 ◽  
Vol 457-458 ◽  
pp. 494-497
Author(s):  
Jin Yong Yao ◽  
Yu Jia
Keyword(s):  
Machine Tools ◽  
Cnc Machine Tools ◽  
Milling Machine ◽  
Cnc Machine Tool ◽  
Cnc Milling ◽  
Cnc Machine ◽  
Load Spectrum ◽  
Reliability Design ◽  
Cnc Milling Machine ◽  
Cnc Lathe

For CNC machine tool, reliability is the key to its quality. Load spectrum is a time-domain distribution of load, and is the key to reliability design and test of CNC machine tools. In order to obtain the load spectrum for reliability test, this paper researches the load spectrum of the typical CNC lathe and CNC milling machine through the analysis and calculation of the actual machining information, and presents the analysis and calculation method of load spectrum, and gives the CNC lathe and CNC milling machine load spectrum curves through actual data examples.

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