scholarly journals DEVELOPMENT OF A POSTPROCESSOR FOR TURNING CENTER AND MULTI-TASK MACHINE WITH MULTI-CHANNEL CNC SYSTEMS

2020 ◽  
Vol 1 ◽  
pp. 28-32
Author(s):  
Tsvetan Kaldashev

This article discusses the possibility of developing a postprocessor for turning center with 2 turrets and a multi-channel CNC system with NC program format characteristic of machine Mazak Integrex I series. Typical for these CNCs is the usage of two support programs - one for each turret. The CAD / CAM system PTC Creo is used to solve the problem, where tool transitions are developed for machining the workpieces. The postprocessor is software that translates the CL Data file i.e. turns it into a NC program with preparatory, technological, and supplementary commands to control the machine. G-POST, which is integrated into the PTC Creo CAD / CAM system, is used to develop the post-processor. To solve the problem, a specialized programming language FIL (Factory Interface Language) is used which, with its features and capabilities to work with files in ASCII code, achieves the ultimate goal - NC program in format characteristics suitable for machines Mazak Integrex I series.

2013 ◽  
Vol 753-755 ◽  
pp. 1254-1257 ◽  
Author(s):  
Ying Liu ◽  
Fan Xie ◽  
Jie Liu ◽  
Jin Cheng Wang

Post-processing technology is the key to CNC automatic programming technology and an important module of the CAD / CAM system. Post-processing technology converts the NC program that is produced by the CNC automatic programming tool into the file that can be identified by CNC system. Moreover, the generated tool path files must match with the CNC system. Post-processing techniques and UG software are briefly introduced. Using them, a post-processor for FANUC CNC systems is created. The program that generated by the special processor is contrasted with the general processor. The results illustrat that using the dedicated post-processor in engineering applications can improve programming efficiency and processing reliability.


2020 ◽  
Vol 3 (2) ◽  
pp. 31-32
Author(s):  
Paul Brian S. Mendez ◽  
Rizalie N.E. Mibato

Dentistry has evolved from its origin to the present day, becoming almost entirely digitized and supervised. The digitalized dental laboratory saves time due to computer-aided design and computer-aided manufacture (CAD/CAM) technology, which will capture and display clients' tooth or teeth and gums on a 3D image on a computer screen sent to the lab.  It enables a dental lab technician to work faster and get the perfect design of the digital dental restoration. The main advantage of digitalization includes faster and improved efficiency on the turn-around time of devices, like crowns and bridges, and improved accuracy of procedures and manufactured gadgets. Digitalization Dental Laboratory (DDL) is the first to offer a digital dental lab in the city of Bacolod. The service allows laboratories to design the prosthesis digitally from in-house CAD software and email the design data provider or download the data file into a proprietary web host or server. The lab will cater to the digital needs of dental patients of the Multi-Specialty Dental Center (a sister company of DDL) and other dental clients.


2012 ◽  
Vol 229-231 ◽  
pp. 2765-2769 ◽  
Author(s):  
Katarina Monkova ◽  
Peter Monka

The article deals with the utilization of group technology inside new software. This software aids the multivariant manufacturing process plans creation and consequently it supported the processing of information in several versions. It can be used for optimization according to the selected criteria, for the generation of technological documentation and NC programs on the basis of hybrid approach. NC program, as one of process plans form, can be for individual parts generated automatically on the basis of group representative that is created as 3D model in CAD/CAM system. The output of CAM module – CL data – is imported into new software application as the basis of NC program. System was called Individual Application system – IAS.


2013 ◽  
Vol 199 ◽  
pp. 279-284
Author(s):  
Stanisław Kachel

The paper presents the methodological approach to development of curves by selection of driving parameters with the application of the method to designing and reproduction of aircraft surfaces on the examples of both newly designed aircrafts and the ones that are already in service. The major assumptions are outlined that are necessary to develop the mathematical model of driving curves and surfaces, these assumptions served as the basis to draw up the relevant algorithms and to convert them to routines of the GRIP (Graphics Interactive Programming) language that is a part of the CAD/CAM/CAE Unigraphics system. These algorithms include the newly developed tool dedicated to design aircraft components and provided with inputs to the multi-criteria synthesis of the aerodynamic profiles of aircrafts. The study comprises also the assumptions to the newly developed algorithms dedicated to modelling of components incorporated into aircraft structures, these algorithms have been successfully implemented by the author.


2019 ◽  
Vol 13 (5) ◽  
pp. 593-601
Author(s):  
Yukitoshi Ihara ◽  
Koichiro Takubo ◽  
Tatsuo Nakai ◽  
Ryuta Sato ◽  
◽  
...  

ISO 10791-7, the test standard for machining centers, was revised in 2014 to add the test method for five-axis machining centers. However, an S-shaped test was additionally proposed as an accuracy test of aircraft parts from China immediately before the establishment of the test standard. In an ISO meeting, various problems such as creating three-dimensional models and evaluation items have been indicated for the proposed test method. By revising these problems, the standard was finally completed and will be introduced as an informative annex soon. However, it is still an inappropriate test method from the viewpoint of performance inspection for machine tools. In this research, the S-shaped test method draft proposed in September 2016 is tested using two types of five-axis machining centers and commercial CAM software. Consequently, a hidden problem is revealed, that is, an abrupt movement that affected the final result is added to the machine because the rotation direction of the rotary axes is not ideal. This is attributed to the performance of the CAM software’s post processor that converts from CL data to NC program. This study provides some insights into avoiding the problem and obtaining better test results.


2019 ◽  
Vol 109 (07-08) ◽  
pp. 611-616
Author(s):  
J. Hofmann ◽  
M. Bolender ◽  
P. Sun ◽  
J. Fleischer ◽  
F. Blanc Sell-Le ◽  
...  

Durch die erhöhte Nachfrage an elektrischen Traktionsmotoren steigen die Anforderungen an die Produktionstechnik. Die Mehrachsnadelwickeltechnik spielt dabei eine wichtige Rolle, da sie es ermöglicht Vollblechschnittstatoren vollautomatisiert zu bewickeln. Die manuelle Erstellung eines NC-Programms nimmt viel Zeit in Anspruch, was eine kritische Hürde für den Prototypenbau darstellt. In diesem Beitrag wird eine CAD/CAM-Schnittstelle vorgestellt und validiert, die es erlaubt aus den CAD-Daten sowie dem Wickelschema automatisiert ein Wickelprogramm zu erstellen.   Due to the increased demand for electric traction drives based on electric mobility, the requirements for production technology are increasing. The multi-axis needle winding technology plays an important role for electric traction drive production. It enables fully automated winding of non-segmented lamination stacks and is therefore very well suited for industrial series production. The manual development of a NC-program for such a machine is very complex and time consuming, which displays a critical barrier especially for prototype manufacturing. Therefore, a CAD/CAM interface was developed at the wbk Institute for Production Science, which enables the automatic development of a winding program from the CAD data of stator, machine and winding tool as well as the winding scheme. The interface is based on a Matlab program that reads in the CAD data in STL format and determines the necessary dimensions using a suitable algorithm. These can be used to calculate support points on which the winding program is based. This article describes the structure of the interface and how to validate it.


2007 ◽  
Vol 36 (7-8) ◽  
pp. 738-745 ◽  
Author(s):  
Xingui Guo ◽  
Yadong Liu ◽  
Kazuo Yamazaki ◽  
Keizo Kashihara ◽  
Makoto Fujishima
Keyword(s):  

2011 ◽  
Vol 63-64 ◽  
pp. 583-587
Author(s):  
Xian Hai Yang ◽  
Xue Chuan Liu ◽  
Chun Hua Li

In order to research CAD/CAM system for parallel division cam to realize the integrated designing and manufacturing for it, firstly, we classify parallel division cam into different series; secondly, based on the homogeneous coordinates theory, analysis and synthesize them of different series, then we can figure out the theoretic profile curvilinear equation and the actual profile curvilinear equation; after that, using VC ++ we develop the design system for parallel division cam based on above equations. The system has a friend interface dialog for inputting parameters, can achieve below functions: automatically synthesize the parameters for mechanisms, automatically create the profile of cams, saving data in format that UG required, generate the three-dimensional solid model, execute machining simulation and generate NC program code. The reliability of the system has been verified by instances.


2014 ◽  
Vol 620 ◽  
pp. 522-527 ◽  
Author(s):  
Shu Yun Ge ◽  
Xiang He Qiao ◽  
Yao Ye ◽  
Hao Hao Chen ◽  
Yong Xiang Li

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.


2014 ◽  
Vol 621 ◽  
pp. 588-593
Author(s):  
Ze Hong Sheng ◽  
Wan Hong Xu ◽  
Wen Hui Wang ◽  
Yong Xiang Li

In order to fit the intelligent development of NC programming system, through in-depth study to master the internal structure and structural principle of NC turning center, this paper developed the innovative NC programming model using common G-code based on its original MAZATROL conversational programming capabilities, and further implements the G-code programming model embedded into its specified MAZATROL conversational programming model, which not only can reflect the versatility of the common G-code programming model, but also can bring into play simple and easy maneuverability of MAZATROL programming model; Finally, by running NC program to perform the trial turning test on NC turning center, the test results verify that the nested NC programming model developed by this paper can effectively solve the tedious and error-prone manual NC programming problem, which greatly reduces the programming and debugging time, improves utilization of NC machine tools, and ultimately has brought significant economic benefits. Therefore, the research results of the paper will provide a simple and effective and practical way to improve the programming efficiency, and have important application value to further enhance the programming intuitive research of NC turning center.


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