Question

In: Mechanical Engineering

what is the dimension Chain? what is the closing link,increasing link and decreasing link?

what is the dimension Chain? what is the closing link,increasing link and decreasing link?

Solutions

Expert Solution

  • The   dimensional    chain   is close-sized    group   that   consisting of interconnected dimensions   during the machine assembling   or parts machining .
  • Every size of dimensional   chain is called link, including closing link and component   link.
  • Closing link is the last link during machining or assembly; meanwhile, all the other links that affect closing   links are named component   link.
  • Component   link includes increasing link and decreasing   link. When the other condition   keeps invariable, increasing link is one component   link that will increase the closing link when its size increase.
  • Decreasing   link is one component link that makes the size of closing link small when its size increases.
  • In the assembly relation of the machine, the assembly dimensional chain consisted of relevant parts size or mutual position relation .
  • The closing link of assembly dimensional chain is the requirement   of assembly   precision or technical;   in other words, it can be depicted   with size or mutual position relation of finally formed parts.  

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