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一、前言夹具功能单元是一种小型的组合部件,有定位、夹紧、辅助定位、基础件等单元,根据被加工件的装夹要求,可将单元组装成各种可调夹具。这种新颖的夹具,国外从六十年代初开始研制,到七十年代已有系列产品,并广泛应用于机械加工中。由我院设计,河南新乡第二机床厂制造的夹具功能单元,经动态试验表明,这种功能单元性能及技术指标均已达到国外同类产品的水平。采用这种功能单元所组成的夹具,具有体积小、结构简单、适应性强、调整方便、“三化”程度高,并能实现自动工作循环,可缩短生产辅助时间,提高生产率,减轻劳动强度。
I. Preface Fixture The function unit is a small type of combination unit. It has positioning, clamping, auxiliary positioning and basic parts. The unit can be assembled into various adjustable fixtures according to the clamping requirements of the processed parts. This novel fixture, developed from the beginning of the sixties abroad, to the seventies already have a series of products, and is widely used in machining. Design by our hospital, Henan Xinxiang Second Machine Tool Manufacturing fixture functional units, the dynamic test shows that this functional unit performance and technical indicators have reached the level of similar foreign products. The jig with this kind of functional unit has the advantages of small volume, simple structure, strong adaptability, convenient adjustment, high degree of “three changes” and automatic working cycle, which can shorten the production auxiliary time, increase the productivity and reduce labor intensity .