数控卧轴矩台平面磨床的支承压力调整和转换装置说明

　　数控(kong)卧轴(zhou)矩台(tai)平面磨(mo)床有磨(mo)头(tou)(tou)垂(chui)直(zhi)移(yi)动(dong)(dong)(dong)机(ji)(ji)(ji)(ji)构(gou)(gou)、工(gong)(gong)作(zuo)台(tai)垂(chui)直(zhi)移(yi)动(dong)(dong)(dong)机(ji)(ji)(ji)(ji)构(gou)(gou)、工(gong)(gong)作(zuo)台(tai)横向移(yi)动(dong)(dong)(dong)机(ji)(ji)(ji)(ji)构(gou)(gou)，磨(mo)头(tou)(tou)垂(chui)直(zhi)移(yi)动(dong)(dong)(dong)机(ji)(ji)(ji)(ji)构(gou)(gou)有数控(kong)步进电机(ji)(ji)(ji)(ji)，数控(kong)步进电机(ji)(ji)(ji)(ji)与减速机(ji)(ji)(ji)(ji)磨(mo)头(tou)(tou)拖板垂(chui)直(zhi)移(yi)动(dong)(dong)(dong)传动(dong)(dong)(dong)机(ji)(ji)(ji)(ji)构(gou)(gou)连接(jie);工(gong)(gong)作(zuo)台(tai)垂(chui)直(zhi)移(yi)动(dong)(dong)(dong)机(ji)(ji)(ji)(ji)构(gou)(gou)有减速机(ji)(ji)(ji)(ji)，减速机(ji)(ji)(ji)(ji)的传动(dong)(dong)(dong)轴(zhou)与工(gong)(gong)作(zuo)台(tai)的纵向移(yi)动(dong)(dong)(dong)传动(dong)(dong)(dong)机(ji)(ji)(ji)(ji)构(gou)(gou)连接(jie)，减速机(ji)(ji)(ji)(ji)的电机(ji)(ji)(ji)(ji)与变频器(qi)连接(jie)。本实用(yong)新型结构(gou)(gou)合理(li)，工(gong)(gong)作(zuo)性能好，工(gong)(gong)作(zuo)效(xiao)率高(gao)。

　　1.数控(kong)卧轴(zhou)矩台平面磨(mo)床支撑压(ya)力的调整

　　磨床(chuang)支(zhi)承(cheng)压(ya)(ya)(ya)(ya)力的调整(zheng)(zheng)(zheng)(zheng)即调整(zheng)(zheng)(zheng)(zheng)压(ya)(ya)(ya)(ya)力继(ji)电器的压(ya)(ya)(ya)(ya)力，一般压(ya)(ya)(ya)(ya)力调整(zheng)(zheng)(zheng)(zheng)范围(wei)为(wei)2-6MPa，具体(ti)根据重量在(zai)这(zhei)个范围(wei)内调整(zheng)(zheng)(zheng)(zheng)至拉(la)杆水(shui)平。压(ya)(ya)(ya)(ya)力继(ji)电器和溢(yi)流阀安装在(zai)操作侧的移动模具侧面(mian)，附(fu)有压(ya)(ya)(ya)(ya)力表，调整(zheng)(zheng)(zheng)(zheng)时(shi)按(an)(an)顺称(cheng)针旋转压(ya)(ya)(ya)(ya)力继(ji)电器调整(zheng)(zheng)(zheng)(zheng)旋钮(niu)，压(ya)(ya)(ya)(ya)力上升，放(fang)(fang)松(song)调整(zheng)(zheng)(zheng)(zheng)旋钮(niu)，压(ya)(ya)(ya)(ya)力过高时(shi)按(an)(an)逆(ni)时(shi)针旋转调整(zheng)(zheng)(zheng)(zheng)旋钮(niu)，同时(shi)放(fang)(fang)松(song)磨床(chuang)蓄能器的溢(yi)流阀调整(zheng)(zheng)(zheng)(zheng)旋钮(niu)，压(ya)(ya)(ya)(ya)力下降到要求压(ya)(ya)(ya)(ya)力以下。

　　2.数控卧轴矩台平面(mian)磨(mo)床的(de)换向装置(zhi)

　　平面(mian)磨床换(huan)向阀根(gen)据(ju)电(dian)磁(ci)铁(tie)(tie)使用(yong)(yong)的电(dian)源(yuan)(yuan)(yuan)分(fen)为交流型(xing)(xing)、直流型(xing)(xing)和本(ben)整形(xing)型(xing)(xing)(本(ben)机整流型(xing)(xing))电(dian)磁(ci)换(huan)向囊(nang)。交流启动(dong)力(li)大，不需(xu)要专(zhuan)用(yong)(yong)电(dian)源(yuan)(yuan)(yuan)，吸收、释放快，但(dan)电(dian)源(yuan)(yuan)(yuan)电(dian)压(ya)下降15%以(yi)上时(shi)，枢纽力(li)明显下降，影响平面(mian)磨床工作(zuo)(zuo)可靠(kao)性，直流式(一般工作(zuo)(zuo)电(dian)压(ya)为24V或12V)工作(zuo)(zuo)可靠(kao)，允许的切换(huan)频率(lv)高，体积小，寿命长。但(dan)是设备需(xu)要专(zhuan)门的直流电(dian)源(yuan)(yuan)(yuan)：本(ben)机整流型(xing)(xing)本(ben)身自带(dai)，可将通入的交流电(dian)转换(huan)为直流电(dian)再供给直流电(dian)磁(ci)铁(tie)(tie)。