1、登車(chē)橋http://www.inductor-china.com/主軸軸向竄動(dòng)太大，應(yīng)調(diào)整主軸上背母，減少軸向間隙，保證在0.07mm之間，主軸錐孔與鉆頭錐柄配合不好，應(yīng)用鑄鐵莫氏錐棒研磨錐孔，保證與標(biāo)準(zhǔn)檢驗(yàn)心棒的接觸面積不小于70%。
Ramps shaft axial movement too, should be adjusted to the spindle back mother, reducing the axial gap between guaranteed 0.07mm, the drill spindle taper taper shank with the bad, apply iron rods Morse taper grinding contact area to ensure that the standard test mandrel of not less than 70%.

2、登車(chē)橋工件裝夾過(guò)緊或夾緊部位不當(dāng)，造成工件變形，應(yīng)合理選擇夾緊部位，正確夾緊工件額，夾緊部位重復(fù)精度差及夾緊不牢固，應(yīng)重新調(diào)整夾緊部件，保證重復(fù)定位精度和夾緊牢固。
Ramps workpiece clamping too tight or improper clamping portion, resulting in deformation of the workpiece clamping site should be a reasonable choice, the correct amount of clamp the workpiece clamping portion clamping repeatability poor and weak, readjust the clamping member, ensure repeat positioning accuracy and clamping firm.

3、登車(chē)橋http://www.inductor-china.com/主軸錐孔內(nèi)有毛刺或研傷，造成鉆頭傾斜，應(yīng)用刮刀修刮內(nèi)錐孔毛刺或研仿部位，保證錐孔軸心線(xiàn)的徑向圓跳動(dòng)誤差靠主軸端小于0.02mm。
Ramps spindle taper hole grind burrs or injury, resulting in drill tilt, application scraper scratch repair glitches or research within the tapered bore fake site to ensure the radial runout error by the cone axis of the spindle nose less than 0.02mm.