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机床主要特点:208
1.采用以沟(或滚道)定位磨孔,单极式电磁无心夹具,磨孔精度高,定位稳定可靠,可调性好。 2.机床工作台往复系统和床头箱进给系统均采用十字交叉滚子导轨,磨擦阻力小,运动平稳。 3.机床具有定程和仪表测量两种控制尺寸精度的方式。 4.MZW204和MZW208采用斜锲杠杆进给机构,传动比大,进给刚性好。MZW204A和MZW208A采用步进电机—谐波减速器—滚珠丝杠杆传动。进给与补偿结合在一起。进给定程精度高,精度稳定性好。 5.采用PC可编程序控制器,无触点行程开关,提高了机床动作的稳定可靠。 6.采用振荡磨削方式,提高了工作台往复次数及磨削效率。 7.MZW204A和MZW208A对留量不同的工件,机床能自动消除空程,缩短循环时间。 | |
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主要技术参数 | MZW204(MZW204A) MZW208(MZW208A) | 磨削孔径 | Φ10—40mm Φ20—80mm | 最大磨削宽度 | 25mm 50mm | 最大装夹直径 | Φ60mm Φ110mm | 砂轮转速 | 24000,75000r/min 24000,18000r/min | 工件转速 | 595,780,990,1190,1560,1980r/min 240,310,400,490,630,815r/min | 工作台振荡频率 | 15—600次/min(可调) | 床头横向移动量(手动) | 50mm | 床头横向最大进给量(机动) | >0.6mm(0—5mm)机动可调 | 床头箱最大回转角度 | 30° | 床头最大回跳量 | 5mm(10mm) | 电机总功率 | 10.6kw(11.3kw) | 外形尺寸 | 1.74×1.30×1.58 |
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加工精度 | 6203/02余量0.20mm | 椭圆度 | 0.0025mm | 尺寸分散 | 0.005mm | 锥度 | 0.0025mm | 壁厚度 | 0.003mm | 孔对基准面的垂直度 | 0.006mm | 粗糙度 | Ra0.32um |
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