回转工作台设计外文翻译文献(文档含中英文对照即英文原文和中文翻译)
原文：
Design and research direction of the rotary table Abstract：this paper introduces the basic content and the principle of the rotary table design, put forward the research direction of the rotary table, broaden the design idea of designer.Improve the efficiency of the rotary table design, shorten the development cycle of new type rotary table, through the study of this article is for the quality of products of pre-assessment, determine the scope of the production and processing of precision index provides an important basis.
Keywords：rotary table；design and research；new ideas；developments
0Introduction
On April 11 to 16, 2011, the theme of "science and technology innovation to meet the crisis generation" of the 12th China international machine tool exhibition (CIMT2011) was held in Beijing. In an economic crisis haze dissipating, slow recovery under the background of international economy, China's economy healthy and rapid development pattern, is attracting more and more attention. In this exhibitio
n, the knowledge of machine tools, tools, manufacturing enterprises at home and abroad Gather in Beijing, as the economic crisis after the baptism of machinery industry brought a feast full of imagination and creativity of science and technology. Is the exhibition of machine tool accessories exhibition In terms of product, high efficiency, high precision, high reliability, high life still is to develop the theme of pursuit. As for the machine tool accessories rotary table is no exception. Rotary table is divided into indexing table, and rotary table. Indexing table can only be completed dividing movement, there is no function of feed. Can be used with work as a whole, can also be used alone. Common positioning pin and rat tooth plate; Nc rotary table is the ideal matching accessories of all kinds of CNC milling machine and machining center. Turn back to the table design Process includeThe basic types of rotary table s not only the mechanical drive mechanism, and it also involves the mechanical and electrical control system, the design idea of the two parts as the demand of the market and customers, constantly update and perfect, therefore, the design and research direction of the rotary table directly affect the benefit and the rise and fall of the
turntable production enterprises.
1 The basic types of rotary table
1.1General turntable
Rotary table is boring machine, drilling machine, milling machine and the slotting machine, and other important accessories, used for processing and there is a requirement for dividing hole, slot and slope, turn the workbench when processing, can be processing arc surface and groove, etc. According to the structure is divided into different levels turntable general turntable, lie the turntable and universal turntable.
(1) water flat turntable: on the frustum of a cone with central hole workpiece positioning and clamping with T slots. Mesa engraved with 360 °on the outer periphery of uniform scribed line. Mesa between base and a worm pole - worm gear pair, ratio of 90:1 or 120:1, to drive and dividing, worm out from base with dial and segment at the end of the handwheel. Turn the handwheel to drive mesa, and the mesa cylindrical week scale (in degrees) and subdivision dial readout rotation Angle. Dividing accuracy is commonly + 60 ". Levels turntable worm out side can also be used coupling connected to machine transmission device, in order to realize the dynamic drive.
(2) lie turntable, the base has two perpendicular installation base, make mesa can be level Also can be vertically.
(3) the universal turret: mesa can be within the scope of 0 ° ~ 90 ° inclined at any Angle, make the workpiece at any Angle of space can be accurately adjusted.
design翻译
1.2 precision turntable
Precision turntable Used for processing or Angle measurement on precision machine tools. Common optical turntable, digital display turntable and super precision contrate gear plate of turntable.
Optical rotary table: (1) on the spindle is equipped with glass or metal precision dial, the optical system to subdivide scale, amplification, through the eyepiece or screen Angle value.
(2) digital turntable: mounted on the turntable spindle precision circular grating or round inductosyn and display unit by the number of words the Angle value. The
above two precision turntable dividing precision up to + / - 1 ".
(3) the ultra-precision end tooth disc turntable: use a pair of precision of research on 1440, 720 or 360 tooth face tooth disc dividing positioning, the indexing accuracy up to + / - 0.01 ", make a precise Angle measurement.
2 The design parameters and the working principle of rotary table
Rotary table design parameters include: rotary table, table size, total table high degree, bearing table,
feed speed, turning back to speed range, fast speed rotary speed, electric power, rotary table, dividing precision and measurement system, etc. This study is based on mechanism of shaanxi institute of technology laboratory of general rotary work Stage, through to tear open outfit, clear the turntable within the department of mechanical transmission mechanism, it is a mesa, pedestal, worm gear, worm, positioning
3 Rotary table of research ideas and methods
Rotary precision of the rotary table is a main technical bottlenecks, if technology and breakthrough in the continent before it has problems, design and manufacture of our country turntable will by "manufacturing power" to "manufacturing power" transformation of a major step forward.
3.1 mechanical parts
Mainly the mesa rotary table with body contact structure design and optimization, generally adopts the sliding and rolling two ways; Second worm and worm wheel design and optimization. In short, the mechanical design involves the various parts of the turntable and parts of process structure, mechanical properties and movement characteristics, etc. Our basic CAD/CAM/CAE technique was used to realize, such as using Pro/E5.0, SolidWorks, CAXA three-dimensional parameterized modeli
ng software to a part of the rotary table zero structure simulation design and research; By using Pro/E5.0, MasterCAMX to make the simulation of machining parts and nc code generation, etc.; Using ANASYS parts for various parts for the turntable mechanical performance analysis, further optimize the structure of the process.
3.2 control part
Turntable control system design is also a key technical problems, implementation approach are: PLC control system, single-chip microcomputer control system and
industrial control system, three categories. Turn our manufacturing control system in the manual, mechanical and electrical automation, digital control stage of development, is climb the new peak, are at a higher level of information control intelligent direction development. Intelligent machine research and development and extensive application, will promote the rapid, healthy and sustainable development of turntable industry in China, and lead a profound change in the future manufacturing, turn back to the workbench products with new image and concept to attract the customers is the focus of every enterprise instead.
3.3 rotary table of green manufacturing design and manufacture of rotary table should also adopt a v
ariety of energy conservation and emissions reduction technology, to the user
And advocating the meaning of low carbon and green manufacturing way. Traditional thinking and the change of production pattern is experiencing a deep carved, more and more machine tool accessories manufacturing enterprises have to shoulder social morality and responsibility given by the low carbon way, step into the governance and development of the road of scientific development, a green industry Revolution is here is machine tool industry rise. Through technical innovation, process optimization, reduce material and oil-water separation automatic recovery, dust collection and recycling, self-lubricating material application, such as less oil lubrication technology measures to reduce emissions, reduce the impact on the environment.
4 Conclusion
The equipment manufacturing industry is the cornerstone of a country's industry, it is a new technology, the development of new products, and provided an important means of modern industrial production, is an indispensable strategic industries.Even the developed industrialized countries, also attaches great importance to.Mechanical, electrical and data processing system and the combination of numerical control technology, leading the new production and processing.In 2011, is China's first y
ear of "twelfth five-year" plan. "Twelve five" period, I have to to the national economy in various fields to carry out the scientific outlook on development as the theme, to speed up the transformation of the mode of economic development as the main line,

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