The Research of Embedded Database Hybrid Indexing Mechanism Based on Dynamic Hashing

Aim is designing the indexing rotation worktable, used for machine process indexing rotation. in this paper introduced two kind of working method of rotation worktable, indexing rotation and circle feeding. Particularly discuss structure compose, drive fashion, transmission mechanism ,orientation clamp mechanism, working principle, indexing rotation action course, about swing hydraulic motor indexing mechanism, rack piston hydraulic cylinder indexing mechanism and hydraulic cylinder Geneva wheel indexing mechanism. through analysis and compare, summarize advantage and disadvantage of the three mechanisms, supply reference for designing and selecting indexing mechanism. the new is used hydraulic cylinder Geneva wheel mechanism to indexing rotation worktable.

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Study and application of SQLite embedded database system based on Windows cE

The 2nd International Conference on Information Science and Engineering ◽

10.1109/icise.2010.5691551 ◽

2010 ◽

Cited By ~ 1

Author(s):

Gu Qinlong ◽

Cheng Xingmei ◽

Tao Weiwei ◽

Yao Minghai

Keyword(s):

Database System ◽

Windows Ce ◽

Embedded Database System ◽

Embedded Database

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Research and Application on a Multi Head Conjugate Disc Indexing Cam Mechanism

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.184-185.384 ◽

2012 ◽

Vol 184-185 ◽

pp. 384-388

Author(s):

Bing Tian Gao

Keyword(s):

High Speed ◽

Production Efficiency ◽

High Reliability ◽

Low Cost ◽

Domestic Industry ◽

Cam Mechanism ◽

Technical Performance ◽

Working Performance ◽

Research Achievement ◽

Indexing Mechanism

In order to realize the technical performance of high speed, high precision, high stability and high reliability for conjugated indexing mechanism with periodic intermittent rotary motion, a two cams structure has been designed, and its geometry size and profile curve was carefully determined. Also the calculation formula of the contour curve for CAM was deduced. Research achievement has been applied to new equipment of enterprise development, the working performance is stable and reliable, the production efficiency raised by 30% compared to the domestic industry. The mechanism has characteristics of simplified structure, improved transmission performance and low cost.

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Application Research on a Curved CAM Surface Reconstruction Method

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.971-973.402 ◽

2014 ◽

Vol 971-973 ◽

pp. 402-405

Author(s):

Zhou Wen ◽

Jun Ling Zhang ◽

Xiu Duan Gong

Keyword(s):

Reverse Engineering ◽

Surface Reconstruction ◽

Design Method ◽

Subsequent Development ◽

Reconstruction Method ◽

Application Research ◽

Cam Mechanism ◽

Indexing Mechanism ◽

Contour Surface ◽

Rapid Modeling

Globular indexing CAM mechanism is a good indexing mechanism. As the working curve of CAM contour surface is no extending curved surface, there is certain difficulty to design processing. It is new kinds of design method that reverse engineering apply in rapid modeling of curved CAM. In this way, designer can complete curve of CAM reverse modeling, and the rationality of the model is verified. At the same time, it also can reverse modeling and the subsequent development of other products to provide a reference.

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