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188宝金博页面版: 冲压模具的英文文献

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内容提示: Abstract Punching die has been widely used in industrial production.In the traditional industrial production,the worker work very hard,and there are too much work,so the efficiency is low.With the development of the science and technology nowadays,the use of punching die in the industial production gain more attention, and be used in the industrial production more and more.Self-acting feed technology of punching die is also used in production, punching die could increase the efficience of production and c...

文档格式:DOC | 页数:3 | 浏览次数:403 | 上传日期:2016-04-14 17:33:04 | 文档星级:
Abstract Punching die has been widely used in industrial production.In the traditional industrial production,the worker work very hard,and there are too much work,so the efficiency is low.With the development of the science and technology nowadays,the use of punching die in the industial production gain more attention, and be used in the industrial production more and more.Self-acting feed technology of punching die is also used in production, punching die could increase the efficience of production and could alleviate the work burden,so it has significant meaning in technologic progress and economic value. The article mainly discussed the classification,feature and the developmental direction of the pnnching technology. Elaborated the punching components formation principle, the basic dies structure and the rate process and the principle of design; and designed some conventional punching die:the die for big diameter three direction pipe which solved the problom of traditional machining,the drawing and punching compound die with float punch-matrix,the drawing and cutting compound dies with unaltered press,the compound die for the back bowl of the noise keeper,the design of the compound die which could produce two workpieces in one punching,the bending die for the ring shape part ,the bending die which used the gemel ,automate loading die for cutting, the drawing,punching and burring compound dies with sliding automated loading,the punching die for the long pipe with two row of hole,the drawing die for the square box shape workpiece and the burring die for the box shape workpiece.The punching dies that utilized the feature of the normal punch shaped the workpiece in the room temperature,and its efficiency and economic situation is excellent. The dies here discussed can be easily made,conveniently used, and safely operated.And it could be used as the reference in the large scale production of similar workpieces. 以下译成英文即可: 我国考古发现,早在 2000 多年前,我国已有冲压模具被用于制造铜器,证明了中国古代冲压成型和冲压模具方面的成就就在世界领先。1953 年,长春第一汽车制造厂在中国首次建立了冲模车间,该厂于 1958 年开始制造汽车覆盖件模具。我国于 20 世纪 60 年代开始生产精冲模具。在走过了温长的发展道路之后,目前我国已形成了 300 多亿元(未包括港、澳、台的统计数字,下同。)各类冲压模具的生产能力。 一、冲压模具市场情况 我国冲压模具无论在数量上,还是在质量、技术和能力等方面都已有了很大发展,但与国发经济需求和世界先进水平相比,差距仍很大,一些大型、精度、复杂、长寿命的高档模具每年仍大量进口,特别是中高档轿车的覆盖件模具,目前仍主要依靠进口。一些低档次的简单冲模,已趋供过于求,市场竟争激烈。 现将 2004 年我国冲压模具市场情况简介如下: 据中国模具工业协会发布的统计材料,2004 年我国冲压模具总产出约为 220 亿元,其中出

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