问题 问答题 简答题

机床刀架的定位机构有哪些?各有什么特点?

答案

参考答案:

(1)圆锥销定位:磨损后仍可消除间隙,刚性差;

(2)端面齿盘定位:定位精度高;重复定位精度好;刚性好。

写句子

扩写句子。  

1.桃花心木是树。  

                                                                                                      

2.小女孩在街上走。

                                                                                                        

3.爸爸观看足球比赛。

                                                                                                         

4.他是个老头儿。

                                                                                                        

5.我思念老师。

                                                                                                        

6.她是科学家。

                                                                                                        

7.鲜花开放。

                                                                                                        

8.小羊吃草。

                                                                                                     

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