scholarly journals Research on Numerical Control Machining Process of Nailing Thin Wall Tube

Author(s):  
Shan-Hua Xiao ◽  
Rui-Qiang Yan
2016 ◽  
Vol 693 ◽  
pp. 936-943
Author(s):  
Gou Zheng Zhang ◽  
Yuan Zhi Zhou ◽  
Jiang Han ◽  
L. Xu

Targeted at numerical control machining process of mass customization vehicle wheel rim revolving body parts and its fixture planning problem, using the dot product method between the unit normal vector of the feature facet, it was provide to distinguish the main direction of machining surface, machining position of workpiece was determined, and NC machining process of integrated procedure was designed. The loaded and taken out of the wheel rim workpiece were analyzed according to the two-dimensional plane clamping method, the clamping point position of wheel rim workpiece can be determined. Using the principle of planar mechanism kinematic to analyze one’s claw of turn-mill fixture kinematics trace, so that a quick clamping structure can reduce the cylinder stroke was designed. This fixture device was convenient and reliable.


2013 ◽  
Vol 579-580 ◽  
pp. 276-282 ◽  
Author(s):  
Zhi Yan Ma ◽  
Guang You Yang ◽  
Xu Wu Su

Based on Virtual Numerical Control machining system (VNC), a new method of Augmented Numerical Control machining system (ANC) which aims at the realization of NC machining process simulation in real machining environment is put forward. The System inputs continuous video images of real NC processing environment through camera to identify and locate the major machining and positioning parts of real machine in the image stream. And the virtual parts of VNC will be matched to the corresponding real ones of real machining system to achieve the registration of ANC. The NC system drives the virtual machining models for processing through a real machine. On the other hand, the actual running information of CNC machine are imported into the ANC system to drive some models of process variables such as cutting force, material removal rate, chip shape, tool temperature, cutting tool wear. ANC provides the platform to integrate the geometry and physical simulation based on actual information from real CNC machining environment.


2014 ◽  
Vol 701-702 ◽  
pp. 223-226
Author(s):  
Shuang Wu

This paper is study on the two-dimensional simulation of the machining process, and three-dimensional simulation. Analog three-axis CNC milling machining entity, it will be processed rough triangular facets discrete and discrete vector geometry and tool scans the body to do intersection algorithm to simulate the tool cutting process by continually updating the blank data to achieve material simulation removal process.


2014 ◽  
Vol 971-973 ◽  
pp. 359-363
Author(s):  
Xin Gui Lin ◽  
Gen Miao Yi ◽  
Xin Rong Zhan

In this paper, the characteristics of four-axis NC (Numerical Control) machining are analyzed initially. Afterwards, in order to obtain a complex workpiece by use of four-axis NC machining, a combined method that can optimize the machining process is proposed, which includes: modeling and programming based on UG software; simulation of the machining process by applying VERICUT. Finally, the results indicate that the method combined with UG programming and VERICUT simulation has practicability and superiority in four-axis NC machining.


2011 ◽  
Vol 314-316 ◽  
pp. 1597-1602 ◽  
Author(s):  
Chao Wang ◽  
Yuan Yao ◽  
Qian Sheng Zhao ◽  
Qing Xi Hu

According to the situation that surface grid models are widely used, this article summarizes the research status of numerical control machining based on Triangle facets models, introduces the STL files in detail, expounds the process of machining STL files by using Pro/Toolmaker system, designs an independent post processor for generating NC code for Fagor machine, simulates the virtual machining process through Vericut software, verifies the actual machining process on Fagor three axis CNC milling machine. Proves the method of numerical control machining based on STL files is actually feasible for planar milling、cavity milling、profile milling, Realizes the machining of STL files based on Fagor CNC system.


Author(s):  
Xian Cao ◽  
Gang Zhao ◽  
Wenlei Xiao

Digital Twin has become a frontier research topic in recent years and the important development direction of intelligent manufacturing. For numerical control machining, a Digital Twin system can be used as an intelligent monitoring and analysis center by reflecting the real machining process in a virtual environment. The machining simulation is the key technology to realize this kind of application. However, existing machining simulation systems are designed for off-line situation that cannot be used directly in Digital Twin environment. The challenges for machining simulation are analyzed and explained in this article: (1) complete process data representation in simulation system; (2) executing in cooperating with computer numerical control system; (3) more efficient simulation algorithm. In order to meet these challenges, a new machining simulation system is proposed. STEP-NC standard is used to save complete process data exported from the computer-aided manufacturing system and synchronization algorithm is developed based on the communication data of computer numerical control system. Most importantly, an optimized tri-dexel-based machining simulation algorithm is developed to perform high efficiency that can follow the real machining process. Finally, a Digital Twin system for NC machining is presented that has been tested and verified in a workshop located in COMAC (Commercial Aircraft Corporation of China Ltd).


2012 ◽  
Vol 510 ◽  
pp. 384-389
Author(s):  
Jin Gui Wan ◽  
Fei Zhang ◽  
Bei Hua Li ◽  
Qi Gao

A complex part, which has curved surface overall, is trial-manufactured with CNC machine. The NC machining process and technology of this full-surface part are studied in this paper. First, the 3D model of the part is created in the modeling module of UG system. Then, process analysis and scheme are developed. As the part has an irregular shape and the entire surface is to be NC machined, there are many difficulties during processing. The optimized process plan is determined. In the manufacturing module of UG system, the NC machining parameters are set according to the processing requirements, the tool paths are generated, edited and checked, and the NC code is generated by post processing. Finally, the part is manufactured using a 3-axis CNC milling machine with the NC programs. It has desirable shape and high accuracy. The result shows that the NC process is reasonable and efficient. CAD/CAM integration technology is applied successfully in this example. The methodology and technology introduced in this paper can provide valuable reference for processing similar parts, and it is also useful for correlational study.


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