A novel specific four-axis linkage method for processing the hourglass worm

2019 ◽  
Vol 234 (7) ◽  
pp. 1414-1422
Author(s):  
Xinyang Qiu ◽  
Yanqin Zhang ◽  
Qiwu Zhou ◽  
Fangyan Zheng
Keyword(s):  
Worm Gear ◽  
Numerical Control ◽  
Virtual Model ◽  
Machining Simulation ◽  
Numerical Control Machining ◽  
Machining Center ◽  
Linkage Method ◽  
Tooth Surfaces ◽  
Traditional Processing ◽  
Center Distance

To improve the flexibility of hourglass worm processing equipment, a specific four-axis linkage method for processing hourglass worm, which is called CZXB method, is presented in the paper. Based on the forming principle of the hourglass worm, machining principle and the traditional processing method were elaborated in detail. And then, the CZXB method that aims to apply four feed-movements linkage to simulate the conjugated rotary motions between the worm and its worm gear was proposed. According to the basic theory of rigid body kinematics, the scientific and feasibility of the CZXB method were demonstrated. Based on the computer numerical control machining simulation system, VERICUT, a virtual model of the machine tool with CZXB function, was established. A multi-thread hourglass worm was taken as an example to simulation processing by the CZXB method. Trial manufacturing was performed: tooth grooves of the hourglass worm were cut out by the traditional method, and tooth surfaces of the hourglass worm were finishing machined by the CZXB method. The result shows that machining center distance of the CZXB method is less than center distance of the worm gear pairs. Implementing the CZXB method can significantly enhance the flexibility of machining equipment of the hourglass worm.

Research on Numerical Control Machining Simulation Based on Power Mill and VERICUT

2011 ◽  
Vol 121-126 ◽  
pp. 2200-2204
Author(s):  
Chao Wang ◽  
Lin Nan Han ◽  
Yuan Yao ◽  
Qian Sheng Zhao ◽  
Qing Xi Hu
Keyword(s):  
Production Efficiency ◽  
Numerical Control ◽  
Virtual Simulation ◽  
Cavity Model ◽  
Machining Simulation ◽  
Numerical Control Machining ◽  
Simulation Process ◽  
Simulation Based ◽  
Physical Processing ◽  
Cutting Experiments

To prevent the collision of tools and machine during the process of numerical control processing, reduce the number of cutting experiments and improve the production efficiency, it is a better way by using virtual simulation. This paper based on a mold cavity model of STL files, realized the numerical control programming based on Power Mill, researched the dynamic simulation process based on VERICUT, and at last verified the correctness and practicability of VERICUT simulation result by physical processing, which provided a reliable reference for physical machining.

Research of the Numerical Control Machining Simulation

2012 ◽  
Vol 546-547 ◽  
pp. 767-771 ◽  
Author(s):  
Xia Xie ◽  
Ai Fen Xu ◽  
Xue Cheng Lu ◽  
Bin Wang
Keyword(s):  
Collision Detection ◽  
Geometric Modeling ◽  
Material Removal ◽  
Concept Development ◽  
Numerical Control ◽  
Machining Simulation ◽  
Numerical Control Machining ◽  
Nc Code ◽  
Modeling Technology ◽  
Nc Machining Simulation

In this paper, the concept, development status and trend of NC machining simulation technology were reviewed and its four key technologies were emphatically introduced, which were geometric modeling technology, NC code translation, entity collision detection and the material removal process simulation respectively.

Digital Twin–oriented real-time cutting simulation for intelligent computer numerical control machining

2020 ◽  
pp. 095440542093786
Author(s):  
Xian Cao ◽  
Gang Zhao ◽  
Wenlei Xiao
Keyword(s):  
Computer Numerical Control ◽  
Numerical Control ◽  
Machining Process ◽  
Machining Simulation ◽  
Process Data ◽  
Numerical Control Machining ◽  
Digital Twin ◽  
Twin System ◽  
Computer Numerical Control System ◽  
Complete Process

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).

Research on the NC Machining and Simulation for Spiral Bevel Gears of Half-Spread-Out Helix Modified Roll

2018 ◽  
Vol 939 ◽  
pp. 63-72
Author(s):  
Xi Ning Jiang ◽  
Yue Hai Sun ◽  
Xiao Hu Xie
Keyword(s):  
Cnc Machining ◽  
Numerical Control ◽  
Tooth Surface ◽  
Numerical Control Machining ◽  
Spiral Bevel Gears ◽  
Bevel Gears ◽  
Machining Center ◽  
New Type ◽  
Spiral Bevel ◽  
Five Axis

A new type of machining method called half-spread-out helix modified roll is used to carry out numerical control machining and simulation of spiral bevel gears in this paper. The transformation from traditional machine tool adjustment parameters into processing input parameters of five-axis CNC machining center was realized. The simulated gear model of this machining method is obtained, and the coordinates of its tooth surface points are compared with points coordinates of theoretical tooth surface which are generated according to the traditional machining method. From the comparison, the correctness of this numerical control machining model is verified.

Interference Detection in Numerical Control Simulation Based on Octree Sphere Model

2013 ◽  
Vol 645 ◽  
pp. 430-434
Author(s):  
Chun Ming Li ◽  
Zhuo Yang ◽  
Min Wang
Keyword(s):  
Detection Method ◽  
Numerical Control ◽  
Interference Detection ◽  
Curved Surfaces ◽  
Machining Simulation ◽  
Sphere Model ◽  
Numerical Control Machining ◽  
Control Simulation ◽  
Nc Simulation ◽  
Simulation Based

This paper presentes an interference detection method for workpiece and tool in numerical control machining simulation process.In this method the workpiece is presented by an octree hierarchy sphere model, and outside surfaces of the machining tool are presented by some simple curved surfaces. Using the minimum touching moment between these spheres and surfaces to detect the interference between the workpiece and the machining tool，the judgement problem of the interference in NC simulation is solved. Through this method, the interference judgment becomes convenient and effective after the octree sphere model was established. Finally, we also give an example to explain the algorithm.

Finger Milling-Cutter NC Generating Spiral Bevel Gear Tooth Surfaces & its Machining Simulation

2011 ◽  
Vol 464 ◽  
pp. 501-505
Author(s):  
Geng Geng Li ◽  
Xiao Zhong Deng ◽  
Bing Yang Wei
Keyword(s):  
Gear Tooth ◽  
Simulation System ◽  
Bevel Gear ◽  
Spiral Bevel Gear ◽  
Machining Simulation ◽  
Milling Cutter ◽  
Machining Center ◽  
Depth Study ◽  
Tooth Surfaces ◽  
Spiral Bevel

Based on the in-depth study the principle of NC generating gear tooth surfaces by application of the disc milling-cutter, finger milling-cutter NC generating spiral bevel gear tooth surfaces is presented in this paper. Through using a 5 shaft 4 linkage machining center, the finger milling-cutter is mounted on the imagination disc milling-cutter, in fact, 2 NC axes are used simultaneously to control the finger milling-cutter motion, imitating a blade motion of disc milling-cutter, and the motion of the blank is not change, to generate the spiral bevel gear tooth surfaces. A spiral bevel pinion is simulation machined by using machining simulation system VERICUT and the feasibility of the machining method is verified.

The Study on Application of Worm’s Numerical Control Machining

2010 ◽  
Vol 455 ◽  
pp. 594-598 ◽  
Author(s):  
Ying Liang Yu ◽  
Zai Dan Geng
Keyword(s):  
Worm Gear ◽  
Cnc Machining ◽  
Numerical Control ◽  
Cnc Machine Tools ◽  
Cnc Milling ◽  
Cnc Machine ◽  
Special Equipment ◽  
Numerical Control Machining ◽  
Practical Applications ◽  
Calculation Of Parameters

One of the significant features of CNC technological superiority is in the practical applications, according to the necessary movement of processed parts required, we can use generating method to transform CNC machine tools and receive the desired results. This article discussed under the premise that lack of special equipment, transforming ordinary horizontal CNC milling to machine worm gear. The advantage of this numerical transformation approach is using the processing functions of thread and tapered thread instruction, skillfully translating into control of the CNC machining worm, expanding the CNC machining capabilities and the scope of practical application. Also apply the advantages of CNC technology, reduce or eliminate the accumulation of worm in the processing of pitch error which makes the worm processing precision and smoothness of worm drive better. This paper discussed the principles of numerical control transformation, transformation of milling machine structure and the conversion calculation of parameters in programming, analyzed the causes and processing effects of worm gear processing errors control and accuracy improving.

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