scholarly journals Virtual horizontal machining center LOLA HBG 80 for program verification and monitoring

2021 ◽  
Vol 49 (3) ◽  
pp. 696-703
Author(s):  
Nikola Vorkapić ◽  
Saša Živanović ◽  
Zoran Dimić ◽  
Branko Kokotović ◽  
Nikola Slavković
Keyword(s):  
Control System ◽  
Virtual Machine ◽  
Program Verification ◽  
Tool Path ◽  
Virtual Machines ◽  
Machining Process ◽  
Open Architecture ◽  
Programming System ◽  
Machining Center ◽  
Nc Machine

This paper describes configuring the virtual horizontal machining center LOLA HBG80 within the programming and verification system and the open architecture control system. The horizontal machining center LOLA HBG 80 is represented by an equivalent virtual machine in a CAD/CAM environment (PTC Creo and Catia), STEP-NC Machine environment, and the control system. Virtual simulation is essential for machining, and the developed virtual machines are used for program verification and monitoring of the machining process. The virtual machine in the programming system allows the verification of the program before sending it to the real machine and includes verification of the tool path (CLF-Cutter Location File) and G-code. The paper also discusses the possibility of applying a new programming method known as STEP-NC and preparing an adequate environment that includes a virtual machine. The virtual machine in the control system represents the last level for the final program verification and the process monitoring system.

scholarly journals Digital twin control of multi-axis wood CNC machining center based on LinuxCNC

BioResources ◽  
2020 ◽  
Vol 16 (1) ◽  
pp. 1115-1130
Author(s):  
Aleksandar Rakic ◽  
Sasa Zivanovic ◽  
Zoran Dimic ◽  
Mladen Knezevic
Keyword(s):  
Control System ◽  
Virtual Machines ◽  
Computer Numerical Control ◽  
Cnc Machining ◽  
Numerical Control ◽  
Machining Process ◽  
Programming System ◽  
Digital Twin ◽  
Machining Center ◽  
Computer Aided

This paper presents an application of an open architecture control system implemented on a multi-axis wood computer numerical control milling machining center, as a digital twin control. The development of the digital twin control system was motivated by research and educational requirements, especially in the field of configuring a new control system by “virtual commissioning”, enabling the validation of the developed controls, program verification, and analysis of the machining process and monitoring. The considered wood computer numerical control (CNC) machining system is supported by an equivalent virtual machine in a computer-aided design and computer-aided manufacturing (CAD/CAM) environment, as well as in the control system, as a digital twin. The configured virtual machines are used for the verification of the machining program and programming system via machining simulation, which is extremely important in multi-axis machining. Several test wood workpieces were machined to validate the effectiveness of the developed control system based on LinuxCNC.

scholarly journals Configuring a new educational machine tool based on hybrid kinematic mechanism

Tehnika ◽  
2021 ◽  
Vol 76 (5) ◽  
pp. 603-612
Author(s):  
Slobodan Tabaković ◽  
Saša Živanović ◽  
Milan Zeljković ◽  
Zoran Dimić
Keyword(s):  
Parallel Mechanism ◽  
Program Verification ◽  
Open Architecture ◽  
Programming System ◽  
Hybrid Mechanism ◽  
Axis Parallel ◽  
Cad Cam ◽  
And Control ◽  
Kinematic Mechanism ◽  
Hybrid Kinematics

The paper shows the configuration of a new educational machine based on hybrid kinematics mechanism. The concept of a three-axis O-X hybrid mechanism is described, consisting of a single serial translational axis and a two-axis parallel mechanism that can operate in two variants, with extended form O and crossed form X-joints of the parallel mechanism. The virtual prototype of the machine was configured in a CAD/CAM environment, where simulations of the mechanism's operation were performed. A programming system for machine has been prepared that also enables program verification. An open architecture control system based on the LinuxCNC platform has been configured for control of the machine. The trial work of the machine was performed in order to verify the realized prototype and control.

Thermal Error Compensation on Boring & Milling Machining Center Feed System Based on PMAC

2014 ◽  
Vol 945-949 ◽  
pp. 1669-1672
Author(s):  
Jun Sun ◽  
Xing Liu ◽  
Zhi Xuan Li
Keyword(s):  
Real Time ◽  
Error Compensation ◽  
Tool Path ◽  
Thermal Error ◽  
Machining Accuracy ◽  
Feed System ◽  
Nc Machine Tool ◽  
Machining Center ◽  
Nc Machine ◽  
Processing Accuracy

Aiming to deal with thermal error of NC machine tool which can cause reduce of machining accuracy, this paper uses an external error compensation which interacts with NC controllers and PMAC multi-axis and then revises the tool path by adding the error tested in real-time by PMAC card. The processing accuracy is improved eventually. This method can compensate machine geometric errors and thermal errors in real-time. Comparing with other methods of error preventing, this method is more effective and affordable.

Application Analysis of Machining Simulation and Post-Processing of NC Turning Center

2014 ◽  
Vol 620 ◽  
pp. 522-527 ◽  
Author(s):  
Shu Yun Ge ◽  
Xiang He Qiao ◽  
Yao Ye ◽  
Hao Hao Chen ◽  
Yong Xiang Li
Keyword(s):  
Machine Tools ◽  
Tool Path ◽  
Simulation System ◽  
Machining Process ◽  
Practical Significance ◽  
Production Cycle ◽  
Machining Simulation ◽  
Nc Program ◽  
Turning Center ◽  
Nc Machine

NC machining simulation, as one of the key technology in the field of CAD/CAM, can effectively check out the interference collisions that may occur in the machining process, significantly improve the safety usage of NC machine tools, has important practical significance to prevent the occurrence of machine accidents. Based on the integrated simulation module of UG NX software, this paper established the simulation model of NC turning center and elaborated the establishing process of machining simulation system, including the creation and verification of tool path, the digital model assembly, machine driver and motion model and so on. So tool path simulation and processing simulation were achieved, and the phenomenon of over-cutting and under-cutting between the parts and the cutting tool can be discovered timely. Meanwhile, on the basis of UG/Post module, the special postprocessor for NC turning center was developed to automatically output NC program, and the generated NC program can directly enter the NC machine tool for processing without manual modification, which will improve the efficiency and quality of automatic programming of machine tools, thereby shortening production cycle and reducing processing costs. Finally, the product processing examples verify the correctness and practicability of the special post-processor and process simulation system.

The Research of the Logarithmic Spiral Axis and NC Machining

2010 ◽  
Vol 135 ◽  
pp. 102-106 ◽  
Author(s):  
Ning Luo ◽  
You Yi Zheng ◽  
Guo Tai Han ◽  
Ke Jiang
Keyword(s):  
Geometric Modeling ◽  
Tool Path ◽  
Logarithmic Spiral ◽  
Nc Machining ◽  
Cnc Machining ◽  
Machining Process ◽  
Machining Center ◽  
High Fatigue ◽  
A New Technique ◽  
Cnc Machining Center

The characteristics of surface connection include high fatigue strength, high centering ability, easy dismantling and long life. According to these characteristics and based on the analysis of logarithmic spiral equation, the article explores a new technique of the matched logarithmic spiral profile connection to facilitate efficiently by formulating the machining process and analysing the part technology to determine the geometric modeling, tool path and simulation of NC machining graph and to inspect the process of Logarithmic spiral axes CNC Machining Center and CMM.

Study of Virtual Numerical Control Milling Simulation System

2009 ◽  
Vol 407-408 ◽  
pp. 174-179
Author(s):  
Xiu Lin Sui ◽  
Zheng Wei Kong ◽  
Jia Tai Zhang ◽  
Xiao Ping Yang
Keyword(s):  
Machine Tool ◽  
Virtual Machine ◽  
Machine Tools ◽  
Tool Path ◽  
Simulation System ◽  
Numerical Control ◽  
Processing Scheme ◽  
Second Development ◽  
Milling Simulation ◽  
Nc Machine

Virtual numerical control milling simulation system, based on UG, is studied oriented to low utilization of NC machines. A virtual machine tools library, standard fixture library and visual machine tool processing environment were established by the second development techniques of UG and VC++. Through the example of XH715 NC machine center, tool path and motion of miller were simulated separately; at last processing scheme was evaluated and optimized. The experimental results show this system possesses good utility, and the utilization of machine tools could thus be improved.

Micro Machining Issues: Design and Machining Process

2013 ◽  
Vol 739 ◽  
pp. 238-244
Author(s):  
Samir Mekid
Keyword(s):  
Machine Tools ◽  
High Speed ◽  
Tool Path ◽  
Machining Process ◽  
Micro Scale ◽  
Standard Scale ◽  
Nc Machine ◽  
Nc Machine Tools ◽  
Key Issues ◽  
Micro Machine

Numerical controlled high speed micromachining on desktop machines is known to induce inherently new types of errors and machining issues at micro scale. The sources of these errors are either not known, or difficult to be modeled. Some of these errors are due to the downscaling effect of machine elements to a small micro-machine. This paper attempts to explore key issues proper to micro machines that are different from standard scale NC machine tools. Experimental observations are shown to support the discussion. The knowledge gained from these phenomena is used to nurture the design methodologies of micro-scale machines, to plan a suitable tool path and hence to improve the micromachining quality. This will also ascertain the statement that direct downscaling of current machine tools is worthless.

Automatic Programming System for Machining Center On-Line Inspection

2010 ◽  
Vol 139-141 ◽  
pp. 1233-1236
Author(s):  
Jian Jun Meng ◽  
Fen Liu ◽  
Hong Qiang Sang ◽  
Jin Tian Yun
Keyword(s):  
Production Efficiency ◽  
Machining Process ◽  
Quality Analysis ◽  
Secondary Development ◽  
Programming System ◽  
Automatic Programming ◽  
Machining Center ◽  
Object Arx ◽  
On Line ◽  
Tool Damage

Currently, manual inspection and off-line inspection play an important role in the inspection methods of machining process, which severely restricts the development of inspecting automation. In the paper, automatic programming system for machining center on-line inspection was developed by secondary development kit object ARX of AutoCAD. Inspecting datum was obtained, inspecting process planning was laid up and inspecting program was made automatically. The inspection can be applied to automatic workpiece setting up, on-line inspection of workpiece, data processing, quality analysis and compensation of machined workpiece errors, which led to increase precision, production efficiency and quality and reduced the rate of rejection and tool damage.

CNC Machining and Simulation for Relief of Special-Shaped Stone

2012 ◽  
Vol 468-471 ◽  
pp. 69-73
Author(s):  
Yu Hou Wu ◽  
Hui Jie You ◽  
De Hong Zhao ◽  
Yan Liu
Keyword(s):  
Process Parameters ◽  
Feed Rate ◽  
Tool Path ◽  
Three Dimensional ◽  
Cutting Speed ◽  
Cnc Machining ◽  
Machining Process ◽  
Cutting Depth ◽  
Machining Center ◽  
Turn Milling

Use special-shaped stone turn-milling machining center (HTM50200) to achieve the production of complex relief. Through the ArtCAM establish the three dimensional relief model of Riverside Scene at Qingming Festival. Analysis of blank material characteristics and features of NC machining center, select the appropriate tool, calculate cutting depth 、cutting speed 、feed rate 、spindle speed and other process parameters by formulas. With ArtCAM/CAM module to make process of the preparation of the rough finishing, the semi-finishing and finishing, and then generate the tool path file. Simulation in VERICUT can optimize the potential collision, over-cutting and owe cut of the machining process, and the adoption of special-shaped stone machining center for milling to finalize production of the relief, summarize the experience in special-shaped stone processing.

Research on Five-Axis NC Machining Simulation for Four-Blade Propeller Based on UG&VERICUT

2014 ◽  
Vol 509 ◽  
pp. 75-79 ◽  
Author(s):  
Yan Wu ◽  
Keng Zhou ◽  
Gang Zheng ◽  
Er Geng Zhang
Keyword(s):  
Tool Path ◽  
Three Dimensional ◽  
Nc Machining ◽  
Machining Process ◽  
Solid Model ◽  
Machining Simulation ◽  
Simulation Process ◽  
Machining Center ◽  
Nc Machining Simulation ◽  
Five Axis

This paper studies the five-axis NC machining simulation process for four-blade propeller. Three-dimensional solid model of four-blade propeller is created based on UG, and then the tool path is generated using its CAM module, and finally the machining simulation is implemented on FIDIA five-axis machining center based on VERICUT. The correctness of NC machining process is verified. The method of the virtual simulation is also suitable for similar parts machining.

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