Power-skiving tool design method for interference-free involute internal gear cutting

2021 ◽  
Vol 164 ◽  
pp. 104396
Author(s):  
Chung-Yu Tsai
2014 ◽  
Vol 532 ◽  
pp. 249-252
Author(s):  
Ying Hua Liao ◽  
Gao Jun Liu ◽  
Xiang Guo Sun

An intelligent CAD system for Involute cylindrical gear cutting tools is developed by VC++ and SQL server, and it includes four modules, such as user interface, instance query, intelligent gear tool design and database. The intelligent gear tool design is the key to the intelligent CAD system, and it is based on the forward reasoning production system, and as the Intelligent reasoning technology is used for gear tool design, a lots of expert knowledge could be made full use of. The design results by the developed intelligent CAD system are more reasonable than those by a traditional CAD system, and the efficiency and quality of the gear tool design also could be improved. The developed intelligent CAD system supports both 2D and 3D models, which can lay foundation for CAD/CAE/CAM integration of gear cutting tools.


2013 ◽  
Vol 70 (9-12) ◽  
pp. 1915-1921 ◽  
Author(s):  
Yingchun Liang ◽  
Wanqun Chen ◽  
Yazhou Sun ◽  
Xichun Luo ◽  
Lihua Lu ◽  
...  

2010 ◽  
Vol 4 (7) ◽  
pp. 1261-1271 ◽  
Author(s):  
Tutik SRIANI ◽  
Hideki AOYAMA
Keyword(s):  

2021 ◽  
Vol 2021 ◽  
pp. 1-13
Author(s):  
Peng Wang ◽  
Jingcai Li ◽  
Lin Han

Tool design is one of the key factors that restrict the development of gear skiving technology since the design principle does not correspond to the cutting principle. The existing skiving tool cannot achieve ideal machining accuracy and reasonable cutting angles. In view of this, some research has been done in this paper. Firstly, the skiving principle is investigated essentially according to the skiving motions. Then, the principle of tool design is analyzed based on the theory of conjugate surface, and a new tool design method is proposed to match the skiving principle. For this, all the skiving patterns for various kinds of workpieces are enumerated and summarized to abstract a normalized skiving model. Based on this, the mathematical model of the conjugate surface is then derived to lay the foundation for tool design. Then, the design methods of cutting edge, rake face, and flank face are proposed. An example is presented at last, and the cutting simulation is conducted. The result proves that the proposed methods are correct and valid. The theoretical research in this paper could promote the improvement of skiving tools.


Author(s):  
Y. Ariga ◽  
Shiyeyoshi Nagata

Abstract Gear tooth tips are frequently chamfered to prevent nicks or scuffing on the tooth surface. Some of the hob cutters and pinion cutters can be chamfered but many types of cutters should be used for a particular range of tooth numbers since the amount chamfering largely varies depending on the tooth number. However, intensive efforts in the design have made it possible to produce cutters with little variation of chamfering amount for a wide range of tooth numbers. The error in the amount of chamfering by a single cutter designed by the above method can be maintained within ±10 % for gears with tooth numbers ranging from 16 to 94. It was found that three cutters of the conventional design are required for keeping the error within the same range for cutting gears within a given range of tooth numbers. The paper describes the tooth design method of the hob cutter with little variation of chamfering amount along changes in number of teeth to be machined and demonstrates that chamfering errors are maintained within practically allowable ranges for profile shift cutting or helical gear cutting with the use of this cutter.


2019 ◽  
Vol 142 (6) ◽  
Author(s):  
Federico Tessari ◽  
Renato Galluzzi ◽  
Nicola Amati

Abstract Gerotor machines are internal gear hydraulic devices that present numerous performance benefits with respect to other topologies. For this reason, they find their application in high-efficiency mechatronic devices, such as electro-hydrostatic actuators. When designing gerotor machines either as a motor or pump, there are numerous parameters to choose, with different influences on the mechanical and volumetric efficiency behavior. Some of these aspects have been addressed in previous research works, while other important features like the tooth aspect ratio have been partially or completely neglected. Hence, it is the goal of this paper to present a methodology, as linear and generic as possible, to tackle the design of gerotor units. The proposed design method is numerically validated through a case study, where dedicated computational fluid dynamics models are used to assess the performance of the prototype.


2020 ◽  
Vol 48 ◽  
pp. 520-527
Author(s):  
Masatomo Inui ◽  
Yu Huang ◽  
Hideaki Onozuka ◽  
Nobuyuki Umezu

2020 ◽  
Vol 56 ◽  
pp. 1277-1285 ◽  
Author(s):  
Hideaki Onozuka ◽  
Fuminao Tayama ◽  
Yu Huang ◽  
Masatomo Inui

2021 ◽  
Vol 9 (3) ◽  
pp. 296
Author(s):  
Ji-Hong Li ◽  
Mun-Jik Lee ◽  
Hyungjoo Kang ◽  
Min-Gyu Kim ◽  
Gun Rae Cho

ROV trencher is a kind of ROV which trenches the sea floor using a specifically designed tool and buries the subsea cables and pipelines. According to the soil conditions, this trenching method can have two different types, one is mechanical cutting and the other one is water jetting. In this paper, we present a water jet tool design method for a 2500 m depth-rated ROV trencher. A series of CFD simulations and laboratory tests with one nozzle, and a ground test using 1:6 scale jetting arm model were carried out to derive and demonstrate the jetting tool design parameters. In October 2018, the constructed ROV trencher was put into the sea trial in the East Sea of Korea to evaluate its final performances. In addition, in December 2019, the trencher was applied in a construction site to bury subsea water pipelines near the Yogji Island in the Korea. Through these two field tests and operation, the trencher was demonstrated for both its operational capability and trenching performance. The main contribution of this paper is that it presents the entire design procedures of water jet tools, including CFD simulations, laboratory tests, field test with 1:6 scaled jetting tool, and the final prototype tool design. These consecutive procedures are carried out in order for us to set up sort of relationship between jetting angle, trench depth, trench speed, and jetting power, from which we can predict and evaluate the trenching performance of the prototype jetting tool.


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