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  • 钣金加工中的钳工质量控制
  • 本站编辑:杭州江源仪器成套设备厂发布日期:2018-04-10 15:35 浏览次数:

A、下料:下料前对于原材料的控制同数冲前对原材料的品质要求相同,下料尺寸注意对角线的控制,对于较厚的板材下料后一面踏边必须知会下道工序生产时将明显踏边的那个面作为非主视面;

A, blanking: the control of raw material before blanking is the same as the quality of raw material before the same number of raw materials.

B、校平:校平时注意产品表面划伤的控制,产品在校形时,必须双面贴保护膜,确保产品表面不划伤,如果因机器设备原因无法避免划伤,将不作表面处理的那个面放在上面确保不划伤;

B, school leveling: usually pay attention to the control of the scratch on the surface of the product. When the product is in the school, the protective film must be attached both sides to ensure that the surface of the product is not scratched. If the scratch can not be avoided because of the machine and equipment reasons, the surface without surface treatment will be placed on it to ensure no scratch;

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C、沉孔:①沉孔的方向必须符合图纸要求(以客户原图为准展开图为参考);②沉孔不得将底孔沉大,沉孔后反面不得有明显突起不能影响与其它配件接触紧固;③沉孔的尺寸必须符合图纸要求,检验沉孔时必须用与其配套的沉头螺钉或拉铆钉进行实配螺钉或铆钉头不得高出沉孔表面;④沉孔必须要圆,沉孔时不得将钻头沉到外面造成沉孔周围有明显凹坑;⑤沉孔时必须将产生的铁屑及时清理掉防止铁屑划伤产品;⑥沉孔后表面不能有毛刺及沉孔大小不一;⑦不要沉错位置或漏沉孔;

C and sinking: (1) the direction of the sinks must conform to the requirements of the drawing (as the reference of the original drawing of the customer); (2) the sinking hole shall not sink the bottom hole, and the reverse side of the countersunk must not affect the contact with other fittings; (3) the size of the sinks must be in accordance with the drawings.  The head screw or pull rivet should not be high out of the surface of the sinks with the screw or rivet head; (4) the sinks must be round, and the drill must not sink to the outside to cause obvious concave holes around the sinks; 5. When the sinks are made, the iron chips must be cleaned out in time to prevent the scraps from scratching. Is not the same size; the wrong position don't sink or drain hole;

D、扩孔:①扩孔后的尺寸必须符合图纸要求;②扩孔后必须将毛刺去除干净,去除扩孔后的毛刺是一般用比扩孔稍大的钻头进行倒角,不得用打麻机打磨去除毛刺这样表面处理无法遮盖;③对于要压铆螺母的圆孔去毛刺倒角时不得倒角过大以免螺母压铆不紧出现掉螺母现象;④扩孔或去毛刺倒角时产生的铁屑必须及时清理干净以免将产品划伤;

D, reaming: (1) the size of the reaming must be in accordance with the requirements of the drawing; secondly, the burr must be removed after the reaming, and the burr after the reaming is generally used for the chamfering of the bit larger than the reaming, and the surface treatment can not be covered with the burr to remove the burr. (3) to the round hole of the riveting nut to the burr chamfering Should not be too big chamfering to avoid nut pressure riveting not tight nut phenomenon; (4) to reaming or deburring in the corner of the iron fillet must be cleaned in time so as not to scratch the product;

E、攻牙:①按照图纸要求攻不同型号的螺纹,不得有漏攻牙现象;②攻牙后螺纹孔周围不得有明显毛刺,攻牙前倒角时不易倒得过大;③攻牙或倒角时操作员一定要对准底孔,防止丝锥或钻头钻到产品表面上而产生压印;④螺纹检验:原则上是用通止规要求通规通止规止;⑤对于普通的螺纹(指我厂装配的螺纹)只要与其配套的螺钉能轻松打进不滑牙就OK不严格要求通规通止规止,对于需电镀的产品在检验螺纹时通规必须通,止规允许少量的不止,而对于铝制产品需氧化的螺纹孔必须是在螺钉可以轻松打进的情况下通规可以不通,但止规必须止住以防止氧化后螺纹滑牙;

E, attack teeth: 1. According to the drawing requirements to attack different types of thread, no leaky tapping phenomenon; (2) no obvious burr around the thread hole after the tapping, and when the chamfering of the teeth is not easy to overturn; when the tapping or chamfering, the operator must aim at the bottom hole to prevent the taps or drill from drilling to the surface of the product to produce imprint; (4) screw Print inspection: in principle, it is required to use the check rules to stop the rules. (5) for the common thread (of our factory assembly thread) as long as its supporting screws can easily enter the non sliding teeth, OK is not strictly required to check the rules, for the products to be electroplated in the test thread, the rules must be passed, the check is allowed a little more than a few, For aluminum products, the threaded holes that need to be oxidized must be blocked when the screw can be easily entered, but the check must stop to prevent the thread slipping after oxidation.

F、拉铆:①铆后产品不能松动;②拉铆钉表面不得有明显碰伤、压印等不良缺陷;③拉铆后拉杆不能拉空透明、断在铆钉里面的拉杆不允许上下来回晃动且有响声;④拉铆后铆钉头不得高出产品沉孔表面,不得有拉偏现象;⑤不得有漏拉铆现象;⑥拉铆后产品必须用与其配套的零部件进行实配并检验整个产品拉铆后的间隙断差是否符合客户检验标准;

F, pull riveting: (1) the riveting product can not be loosened; (2) there is no obvious defect on the surface of the rivet; (3) the pull rod after riveting cannot be transparent, and the rod broken in the rivet is not allowed to go down and slosh and slosh; (4) the rivet head shall not be high on the surface of the sinks of the product, and may not have the phenomenon of pulling and deflection; 5 There must be no leakage and riveting; 6. After riveting, the product must be used with the components supporting the riveting and check whether the gap gap after the whole product is riveted is in conformity with the customer inspection standard.