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class="pipe show">|</span><a href="javascript:;" onclick="readmode($('thread_subject').innerHTML, 1078105);" class="show">阅读模式</a> </div> </div> </div><div class="pct"><style type="text/css">.pcb{margin-right:0}</style><div class="pcb"> <div class="t_fsz"> <table cellspacing="0" cellpadding="0"><tr><td class="t_f" id="postmessage_1078105"> <strong>玻璃CNC原因</strong>分析及改善、预防措施<br /> 类型 原因分析 改善措施 预防措施<br /> 划伤<br /> ① 吸收盒脏（磨粉与玻璃粉较多） ①定时清洗吸塑盒和垫纸①用插架泡水方式避免玻璃与物料的面接触磨擦<br /> ② <a href="http://optics.oecr.com" target="_blank" class="relatedlink">加工</a>底座有玻璃粉、底座硬度过高②底座每30分钟清洁一次,选用硬度较低、带润滑的<a href="http://material.oecr.com" target="_blank" class="relatedlink">材料</a>做底座②做好的底座保证是没有问题隐患才调机生产<br /> ③ 检验的毛巾脏、玻璃粉较多③20分钟洗一次，洗前用水泡20分钟③玻璃清洁选用清洗机清洁，避免玻璃与物料的面接触磨擦<br /> ④玻璃碰玻璃磨擦导致花片④在生产<a href="http://b.oecr.com/sell" target="_blank" class="relatedlink">产品</a>过程中一只手只允许拿一片玻璃④开早、晚会时提醒员工的操作手法，培训统一操作手法<br /> 崩边<br /> 崩角<br /> ① 参数不合理<br /> ①开机按要求检查参数和设置参数，分三次检（mastercam参数检<br /> 查，mastercam仿真检查，机器仿真检查）<br /> ①技术员必须懂所有产品的正常常数设置，非技术人员不可更改任<br /> 何参数<br /> ② 刀具磨损过多②定时更换刀具，定时检查刀具是否合格②定时检查产品质量来判断刀具磨损程度<br /> ③ 主轴转速不够、主轴气压不够③检查气压稳定性，检查主轴气压是否足够③开机前检查气压稳定性，检查机床部分气管是否有漏气现象<br /> ④ 来料不良④检验来产料品，不合格超标就退回前工序④要求前工序加强自检，本工序也要抽检来料<br /> 精孔倒<br /> 边大小<br /> 边<br /> ①刀具设的深度不合理①设置刀具深度要根据刀具图纸和产品图纸要求来设置， ①根据刀具尺寸和产品要求来调节最合适深度<br /> ②放片不到位②培训统一放片手法，用手感觉必须放到位才能加工②培训统一放片手法，用手感觉必须放到位才能加工<br /> ③粗孔边距没控制好③粗孔送料前全检边距，不合格超标按规定处罚③粗孔必须安排熟练使用卡尺的人开机<br /> ④精孔底座过松④底座必须适中，用到过松时要及时更换④铣好的底座拿10片产品验证合格后再调机生产<br /> ⑤来料外形变形（厚度不均匀） ⑤来料抽检部分厚度，以最中值厚度调机⑤要求前工序自检厚度，本工序也要抽检来料厚度<br /> 外形倒<br /> 边大小<br /> ①刀具设的深度不合理①设置刀具深度要根据刀具图纸和产品图纸要求来设置， ①根据刀具尺寸和产品要求来调节最合适深度<br /> ②底座不平②铣底座选用较好的刀具铣，底座每30分钟清洁一次②做好的底座保证是没有问题隐患才调机生产<br /> ③套位夹具过松③套位夹具必须比开料尺寸单边大3-4个丝，过大需更换③铣好的底座拿10片产品验证合格后再调机生产<br /> ④来料不良（厚度不均匀） ④抽检部分来料厚度，以最中值厚度调机④要求前工序自检厚度，本工序也要抽检来料厚度<br /> 孔偏<br /> ①精孔底座松动① 底座必须适中，比成品尺寸单边大3个丝即可，过松时及时更换③铣好的底座拿10片产品验证合格后再调机生产<br /> ②粗孔边距超公差②粗孔送料前全检边距，不合格超标按规定处罚②粗孔必须安排熟练使用卡尺的人开机<br /> ③操作不手法统一、放片不到位③培训统一放片手法，用手感觉必须放到位才能加工③培训统一放片手法，用手感觉必须放到位才能加工<br /> ④ 真空气压不够④ 定时检查真空气压稳定性，不稳定必须等气压稳定在生产④开机前检查真空气压，检查底座是否漏气严重<br /> ⑤单片加工的粗孔变形⑤ 检查单片成型的粗孔时，发现有变形现象必须换刀调机⑤走单片成型产品要求每片自检外观，发现有不良现象要及时换刀<br /> ⑥ 进给率过快，圆弧与直边不稳合⑥ 圆弧参数尽可能走慢，直线参数走适中即可⑥根据机器的性能选用最合适的圆弧与直线参数配比</td></tr></table> <div class="ptg mbm mtn"> <a title="雕刻" href="misc.php?mod=tag&id=3060" target="_blank">雕刻</a>, <a title="原因" href="misc.php?mod=tag&id=2989" target="_blank">原因</a></div> </div> <div id="comment_1078105" class="cm"> </div> <div id="post_rate_div_1078105"></div> </div> </div> </td></tr> <tr><td class="plc plm"> <div id="p_btn" class="mtw mbm hm cl"> <a href="http://club.oecr.com/home.php?mod=spacecp&ac=favorite&type=thread&id=258443&formhash=0d4be6f8" id="k_favorite" onclick="showWindow(this.id, this.href, 'get', 0);" onmouseover="this.title = $('favoritenumber').innerHTML + ' 人收藏'" title="收藏本帖"><i><img src="static/image/common/fav.gif" alt="收藏" />收藏<span id="favoritenumber" style="display:none">0</span></i></a> <a class="followp" 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