Friday, September 16, 2022
问题:铣削外花键时之所以选择直径较小的直齿三面刃铣刀,目的是要保证键侧...
Monday, September 12, 2022
问题:选择加工表面的设计基准为定位基准的原则称为()。...
Monday, September 12, 2022
问题:X6132型铣床中的安全离合器和片式摩擦离合器各有哪些功能?...
Tuesday, September 5, 2023
问题:锻件、铸件和焊接件,在毛坯制造之后,一般都安排()热处理。...
Sunday, September 11, 2022
Monday, September 12, 2022
问题:采用端面铣削时,铣刀有锥度,会造成工件倾斜度不准。...
Saturday, September 17, 2022
Friday, September 16, 2022
问题:浮标式气动量仪为了使用上的方便,浮标的悬浮高度不能随便调整。...
Sunday, September 11, 2022
问题:在铣床上对板形或箱体形工件进行孔的加工时,一般都采用()装夹。...
Friday, September 16, 2022
问题:宏程序的结尾用()返主程序。A、M00B、M02C、M98D、M99...
Wednesday, July 17, 2024
Friday, September 16, 2022
问题:数控机床主轴锥孔的锥度通常为7∶24,之所以采用这种锥度是为了(...
Tuesday, September 13, 2022
问题:当材料强度低、硬度低、用小直径钻头加工时宜选用()转速。...
Saturday, September 17, 2022
Tuesday, September 13, 2022
问题:()属于伺服机构的组成部分。A、CPUB、CRTC、同步交流电机D、指示光栅...
Sunday, July 20, 2025
问题:点A(8,-3)与点B(-6,1)间的距离为()。...
Sunday, September 11, 2022
问题:铣削矩形奇数齿离合器时,工件装夹不同轴会使一对离合器接合后()。A、变形B、贴合C、脱开...
Monday, January 15, 2024
问题:在卧式万能铣床上铣削一斜齿条,齿条模数mn=4mm,齿数z=40...
Friday, September 16, 2022
问题:下列选项中,不能用来测量轴的圆度误差的计量器具是()。...
Saturday, September 17, 2022