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href='http://www.simonredekop.com/news/92.html'>http://www.simonredekop.com/news/92.html</a></span>  更新时间?017-10-25</div> <div class="mm"><p> <img src="/uploads/image/20170116/20170116100239_1422.png" alt="" /> </p> <p>  1.铣削垂直面<br />     在卧式铣床上以虎钳装夹进行铣削?a href="http://www.simonredekop.com/supply/40.html" target="_blank">加工中心天津销?/a> 用平口虎钳装夹铣垂直面的情况。铣削时,影响垂直度的因素主要有下列几个方面?br />     1)基准面没有与固定钳口贴合。在用虎钳装夹工件时,即使固定钳口与铣床工作台面的垂直度很好,若工件的基准面没有与固定钳口贴合,则铣出的平面与基准面就不垂直。加工中心造成不贴合的原因有:<br />     a.工件基准面与固定钳口之间有切屑等杂物,因此在装夹时必须将基准面与固定钳口擦拭清洁?br /> L工件的两对面不平行,机床配件夹紧时,钳口与工件基准面不是面接触而呈线接触。为了避免这种情况的出现?a href="http://www.simonredekop.com/supply/36.html" target="_blank">天津数控机床</a>维修可在活动钳口处轧一圆棒(或窄长的铜皮),圆棒的位置以处在钳口顶至工件底面的中间为宜?br />     2)固定钳口与工作台面不垂直。虎钳在制造时固定钳口与底面是垂直的。但在使用过程中,由于钳口磨损和虎钳底座有毛刺或切屑等原因,会造成固定钳口与底面不垂直。在铣削垂直度要求机床配件较高的垂直面时,需进行调整?br />     a.在固定钳口处垫铜皮或纸片。若在预铣加工中心时,铣出的平面与基准面的交角小?0*,则把窄长的铜皮或纸条垫在钳口的上部;若铣出的垂直面夹角大于90‘,则应垫在钳口的下部,但这种情况较少见。垫物的厚度是否准确,可试切一刀,测量后,再决定增添或减少。这种方法操作起来比较麻烦,且不易垫准,因此是在单件生产时的临时措施?br />     b.在虎钳底平面垫铜皮或纸片。在虎钳底平面与工作台面之间垫铜皮或纸片,也能校正固定钳口与工作台面的垂直度。若铣出的垂直面夹角小于90‘,则把铜皮垫在靠近固定钳口的一端;若大?0*,则应垫在靠活动钳口后部的一端。这种方法也是临时措施,但加工一批工件只需垫一次?br />     c.校正固定钳口的钳口?又称护片加工中心)。校正时好用一块表面磨得很平、很光滑的平行铁,使光洁平整的一面紧贴固定钳口,在活动钳口处放置一圆棒或铜条,把平行铁夹牢。用百分表校验贴牢固定钳口的一面,使工作台作垂直运动,在上下移?00mm的长度上,百分表读数的变动应??3mm以内为合适。用平行铁辅助的目的是增加幅度,使偏差显著,容易校正。在没有合适的平行铁机床配件时,可用杠杆式百分表直接校固定钳口。若发现百分表上的读数变动范围超过要求时,可把固定钳口上的护片拆下来,根据差值的方向进行修磨。也可在护片与固定钳加工中心口之间垫薄钢片,,钢片的厚度可按比例计算。护片经修磨或垫准,并装好后,需进行复校,一直到准确为止,钳口机床配件只允许略有内倾。这种方法也可把虎钳放在标准平板上进行校正,并可减少工作台作上下运动时产生的误差,但校时比较复杂。这种校正钳口护片的方法,经一次校正,可使用很长一个时期。加工中心在操作过程中,安装虎钳时,必须把虎钳底面和工作台面擦拭清洁.并去除虎钳底座的毛刺?br />     3)铣刀圆柱度不准把固定钳口安装成与主轴垂直时,机床配件若铣刀刃磨成圆锥形(即有锥度),则铣出的平面会与基准面不垂直。然而,若固定钳口安装得与主轴平行,则铣刀的圆柱度对铣垂直面影响不大?br /> </p></div> <div class="newArtiNext"><div>上一?<a href="93.html">天津电火花放电机销?车床零件的修?/a></div> <div>下一?<a href="91.html">天津加工中心 机床自动控制的分?/a></div> </div> <div class="tag">相关标签?/div> </div> <div class="insPro">相关新闻</div> <div class="insNews"> <ul> <li><a 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