数控龙门铣床DHXK4032机床的结构特点:固定式床身、工作台移动;主轴箱随溜板上下移动;亦可沿横梁左右移动实现三轴联动;配置22kW主镗铣头。机床具有铣削、镗削、钻削、锪孔等功能,适用于机械、钢铁、能源、汽车、航空航天、兵器、船舶等行业的大、中型零件的加工。配备附件铣头后可实现工件的一次装夹,安装直角铣头可五面加工,一机多用,提高了工件的加工质量和生产效率。该机床**新代系统CNC数控控制。
为**机床性能与**性, 我公司在该机床上大量采用**质的配套件:
轴承采用NSK精密**质轴承
电机采用华大电机
丝杆采用**上银滚珠研磨丝杠
导轨采用**上银滚柱直线导轨。
a) 机床主参数:
工作台尺寸(宽×长)······································ 4000 mm*2800 mm
上下行程······························································ 1500 mm
T型槽宽······························································· 22 mm
T型槽间距··························································· 160 mm
b) 加工范围参数:
工作台行程·························································· 4300 mm
两立柱间距·························································· 3200 mm
主轴箱上下进给·················································· 800 mm
加工高度······················································ 1800mm
c) 主铣头参数:
主轴电机功率(S1/S6-60%)···························· 22kW
主轴转速范围······················································ 4500 r/min
主轴输出转矩(S1/S6-60%)···························· 700 Nm
主轴锥孔······························································ ISO No.50
d) 整机参数:
机床电气总容量·················································· 60 KVA
机床重量······························································ 约60000 Kg
机床外形尺寸(长×宽×高) 约10000mm×5200mm×4300
二、 机床主要结构特点:
1.Y轴:工作台沿固定床身导轨纵向往复运动。
Y轴传动:采用交流伺服电机传动滚珠丝杠传动,带动工作台运动,实现X轴直线运动。
导轨形式:2条55滚柱直线导轨。
2.X轴:铣头溜板沿横梁导轨往复运动。
X轴传动:采用交流伺服电机传动滚珠丝杠传动。
导轨形式:2条65滚柱直线导轨。
3.Z轴:铣头滑枕沿溜板导轨垂直往复经给运动。
Z轴传动:采用交流伺服电机通过滚珠丝杠带动主轴箱上下进给运动,并加双杠配重
导轨形式:T型贴塑滑动复合导轨。
4.大件:
机床大件包括床身、工作台、立柱、、横梁、铣头溜板、铣头滑枕、铣头。
机床大件均采用树脂砂造型、**度**铸铁件。大件毛坯经热时效处理粗加工二次回火,以消除内应力;粗加工后进行充分的时效处理,以消除加工残余应力;精加工在数控龙门镗铣床上采用自由装夹的方式进行高速轻切削,使机床具有良好的刚性和精度保持性。
5.主镗铣头:
主铣头采用**主轴,带自动拉刀,同步带轮结构。
6.润滑系统:
润滑系统分为横梁润滑、工作台导轨,丝杆箱润滑和主机泵站集中润滑两部分。
横梁润滑采用集中润滑泵供油,对各润滑点(如导轨、滚珠丝杠、轴承等)进行润滑,并可对供油周期进行调整,以达到的润滑状态,并通过电气系统控制,实现**自动集中润滑。床身采用自动齿轮泵循环供油,**导轨长期处于油泡里面防止磨损。