B軸擺頭采用力矩電機(jī)直驅(qū)傳動(dòng)技術(shù)，扭矩大、加減速響應(yīng)快。使用了高扭力、高精度、高轉(zhuǎn)速、空間性佳“內(nèi)藏式主軸”與五軸加工中心 頭座結(jié)合而成的“五軸加工中心內(nèi)藏式主軸機(jī)構(gòu)”。 機(jī)床進(jìn)給組件采用高精密滾珠絲杠，且兩端軸承采用能承受大載荷的絲杠**精密角接觸球軸承，對(duì)滾珠絲杠進(jìn)行了精密的雙固定預(yù)拉伸， 使機(jī)床具有較強(qiáng)的剛性。 X/Y/Z三軸標(biāo)配直線光柵尺及A/B軸配備圓光柵形成全閉環(huán)。 The B-axis swing head adopts torque motor direct drive transmission technology, which has large torque and fast acceleration ａnd deceleration response. The "built-in spindle mechanism of the five-axis machining center" is formed by combining the "built-in spindle" with high torque, high precision, high speed, and good spatial performance with the head seat of the five-axis machining center. The machine tool feed assembly adopts high-precision ball screw, and the bearings at both ends adopt precision angular contact ball bearings for lead screws that can withstａnd large loads, and the ball screws are precisely double-fixed pre-stretched, so that the machine tool has strong rigidity. The X/Y/Z axis is equipped with a linear grating scale as standard and the A/B axis is equipped with a circular grating to form a fully closed loop. ·