文档介绍：毕业设计(论文)外文翻译
题目数控立式车削中心数控化改造
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日期 20** 年 3 月 10 日
外文原文:
Vertical Turning Center of NC
New SINUMERIK C system on the use of more than 10 years of C B Vertical Turning Center of NC, NC Machine Tool powerful features greatly broadened the scope of machining parts, and better ensuring the processing of parts the consistency and quality of products. This article was the second SINUMERIK NC application essay activities and the transformation of a prize-second prize.
C B Vertical Turning Center in the Czech panies in the 1990s manufacture, use FANUC-BASK C system. Since the machine had been in use for more than 10 years, and the NC system upgrading, BASK 6T-C system has been shutdown, system board of aging, expensive spare parts. A C machine tools to transform the system is imperative so that the machine can restore vitality, and give better play to the potential of machine tools.
Transformation programme development
The original full-featured machine, including spindle (table) and the rotation axis milling campaign, X, Z-axis coordinates of movement, 15 knives in a knife library systems, and such as the cooling system, hydraulic system, lubrication system , Paixie system functional machine. Spindle axis and milling by DC and DC motor speed regulator. X and Z-axis also coordinates by DC servo motor and DC servo governor. The knife used ordinary three-phase asynchronous AC motor from the five binary cam positioning. The mechanical part of the machine all good mechanical properties of stability, accuracy fair and normal hydraulic system, the part of the capital remain unchanged.
NC system and the replacement of electrical control part, by SIEMENS SINUMERIK C system. X and Z axes and knives coordinates the servo drive system uses SIIMODRIVE 611UE variable frequency drive system and a FK7 servo motor, encoder pulse chosen as a location detection devices, digital servo drive system to achieve closed-loop control. And milling spindle axis driv