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• 2018-11-22 13:39發(fā)布了問答

  砂輪如何檢驗(yàn)

  砂輪如何檢驗(yàn)

  399人看過

• 2018-11-19 00:06發(fā)布了問答

  建國以前有沒有什么大型的掃黑運(yùn)動？

  　

  299人看過

• 2018-07-24 04:22發(fā)布了問答

  家有家規(guī)，校有校規(guī)，動物園里有什么規(guī)？

  　

  487人看過

• 2017-11-15 04:38發(fā)布了問答

  伊諾娃夾具是不是東為精工的比較好

  　

  465人看過

• 2017-07-14 05:39發(fā)布了問答

  砂輪打火機(jī)怎么打著火

  砂輪打火機(jī)怎么打著火山里來的沒用過

  1533人看過

• 2015-11-21 00:21發(fā)布了問答

  液壓平推夾具和楔型夾具有什么區(qū)別，哪種夾具更好？

  　

  337人看過

• 2015-10-03 06:33發(fā)布了問答

  砂輪的組織號用英文如何表達(dá)？

  砂輪的粒度、組織號、磨粒的百分密度分別用英文怎么翻譯？感謝~~

  427人看過

• 2015-01-02 07:33發(fā)布了問答

  磨床砂輪修整器角度30度下方要墊多少㎜，詳細(xì)計(jì)算公式怎么算的，謝謝

  　

  4396人看過

• 2012-11-17 06:08發(fā)布了問答

  立式數(shù)控銑床都有哪些夾具？

  　

  531人看過

• 2009-05-07 02:47發(fā)布了問答

  急求英文高手翻譯一段摘要 有關(guān)夾具設(shè)計(jì)的

  Abstract In this paper， the general situation of research on agile fixture design is summarized and the achievements and deficiencies in the field of case-based fixture design are pointed out. There are no correlative case bases and match... Abstract In this paper， the general situation of research on agile fixture design is summarized and the achievements and deficiencies in the field of case-based fixture design are pointed out. There are no correlative case bases and matching mechanisms during the period from establishing the fixture planning to designing the fixture in currently used case-based fixture design systems. Thus a great amount of experience of fixture design is wasted and cannot be re-used， which reduces design efficiency and violates the original intention of case-based reasoning methods. In order to realize agility of fixture design， including re-configurability， re-scalability and re-usability， in this paper， a re-configurable agile fixture element base and an element assembly relation base are established. Using these two bases， the fixture structure is function-based decomposed， which makes it easy for an agile fixture to be re-configured and modified. Furthermore， a whole case-based agile fixture design model is presented， in which three modules are introduced， including the evaluation of the similarity of fixture planning， conflict arbitration and the modification of an agile fixture case. The three modules can be used to solve a problem where experience and design results cannot be re-used in the process of fixture design. Against the agile fixture design model， the evaluation method is put forward to evaluate the similarity in various phases. However， a similar case in the base could not generally meet the actual requirement and resolve the conflict between the similar case and the actual condition. Thus three methods， including a local restriction-relaxed method， a function-based conflict arbitration method and a case-based conflict arbitration method， are presented to clear up the conflict and could be used to modify the case to obtain an approach to a design result. Finally， an agile fixture design example is presented. The result demonstrates that the case-based agile fixture design approach can improve re-usability and design efficiency. Keywords: Agile fixture design; Case-based reasoning; Modeling 展開

  460人看過