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精密模具電火花加工的技術都需要哪些技巧?

刮刮乐2000 www.yfrmbf.com.cn 來源:    發布時間:2019-12-04 13:17:02    點擊:

濟南模具現在是應用非常去普遍的!但是模具加工的技術要求也是非常重要的,那么今天就由濟南市宏捷模具有限公司帶大家了解一下模具精密電火花加工的技術都需要哪些技巧?
  Jinan mold is now widely used! However, the technical requirements of mold processing are also very important. Today, Jinan Hongjie Mold Co., Ltd. will take you to know what skills are needed in the technology of mold precision EDM?
  1. 精密電火花加工的前提
  1. Premise of precision EDM
  對于高附加值模具0件的電火花加工,一般放電機床難-以勝任完成,選擇高-精密電火花加工機床是前提。精密電火花加工機床在結構的力學性能、主軸和工作臺的各幾何精度方面應滿-足高-精度要求。高-精度光柵尺的全閉環控制方式,能獲得及高的自動定位精度?;駁穆齔宓繚蔥閱芫齠ǚ諾緙庸さ男閱?,要尺寸精、輪廓清的話就要求放電間隙很小,在小間隙加工條件下能實現穩定加工,自動監控每個放電脈沖的狀態,確-保不-良脈沖不產生破壞作用。高速抬刀技數能使加工廢屑和焦油有-效地排出,獲得穩定的放電間隙。
  For EDM of 0 pieces of high value-added mould, it is difficult to put the motor bed in order to be competent to complete, so the selection of high-precision EDM machine is the premise. The mechanical properties of the structure, the geometric accuracy of the spindle and the worktable of the precision EDM machine tool should meet the requirements of high precision. The full closed-loop control mode of high-precision grating ruler can obtain high automatic positioning accuracy. The performance of pulse power supply of machine tool determines the performance of EDM. If the size and contour of the machine tool are to be fine, the discharge gap is required to be very small. Under the condition of small gap machining, stable machining can be realized, and the state of each discharge pulse can be monitored automatically to ensure that the bad good pulse does not have destructive effect. High speed knife lifting technology can effectively discharge the processing waste and tar, and obtain a stable discharge gap.
  2. 精密電火花加工的工藝方法
  2. Process method of precision EDM
  精密電火花加工采用多電及加工的工藝方法。根據加工部位在粗、半精、精加工中放電間隙不同的特點采用幾個相應尺寸縮放量的電及完成一個型腔的粗、半精、精加工。
  The precision EDM adopts the technology of multi electricity and machining. According to the different characteristics of the discharge gap in the rough, semi-fine and finish machining of the machining parts, several scaling quantities of corresponding dimensions are used to finish the rough, semi-fine and finish machining of a cavity.
  因搖動量小,還是具有很高的仿形精度,且搖動加工使放電穩定,可獲得側面與底面均勻的表面粗糙度,被廣-泛采用。精密加工中需要換用多個電及,只要保正重復的定位精度,就可以達到滿意的工藝效-果。
  Because of the small rolling momentum, it still has a high profiling accuracy, and the rolling machining makes the discharge stable, which can obtain the surface roughness of the side and the bottom, which is widely used. In the precision machining, it is necessary to use more than one electromotor. As long as the positive and repeated positioning accuracy is maintained, satisfactory process efficiency can be achieved.
濟南模具
  3. 保正精密加工定位精度的方法
  3. Method to ensure the positioning accuracy of precision machining
  精密電火花加工為保正及高的重復定位精度,也不降-低加工效率,采用快-速裝夾的定位系統,如GF加工方案3R快-速裝夾夾具。使用這類夾具時,只要在配套前對精度作好了調試,在加工中重復定位精度可達±2μm,電及和工件都可以快-速換裝,加工前使用分中基準球工具,利用數控電火花機床的自動分中功能,完成主軸夾頭與工件中-心0點的定位。
  In order to ensure positive and high repetitive positioning accuracy, and to keep low machining efficiency, precise EDM adopts the positioning system of fast clamping, such as GF machining scheme 3R fast clamping. When using this kind of fixture, as long as the accuracy is adjusted before matching, the repeated positioning accuracy can be up to ± 2 μ m in the process of machining, and the electric and workpiece can be changed quickly. Before machining, use the reference ball tool of the center dividing, and use the automatic center dividing function of the CNC EDM machine tool to complete the positioning of the zero point of the main axis chuck and the workpiece center.
  4. 精密加工對電及的要求
  4. Requirements of precision machining on electricity and
  電及的材料在精密加工中是一個關鍵的問題。紫銅在電加工領域里是用得多的電及材料,能滿-足較高-精度的加工要求,但在微細加工中,為了減少電及損耗,減少電及數量,提-高加工表面質量,實現高穩定的加工,應考慮選用價格較貴的銅鎢合金電及材料。電及在用于電火花加工前應對尺寸、形狀進行詳細的投影測量,全-面檢測合格后才用來加工。在實際生產加工中,由于電及不合格的問題造成的報廢事例是很多的。因此精密加工中抓好電及的制造這一環節是重要的。
  Electric materials are a key problem in precision machining. Copper is widely used in the field of electrical processing and materials, which can meet the requirements of high-precision machining. However, in order to reduce electrical and loss, reduce electrical and quantity, improve machining surface quality, and achieve high and stable machining, we should consider the selection of expensive copper tungsten alloy electrical and materials. Before being used in EDM, the size and shape shall be measured in detail, and only after passing the full face test can it be used for machining. In the actual production and processing, there are many cases of scrap due to the problems of electricity and disqualification. Therefore, it is important to pay attention to the manufacturing of electricity and precision machining.
  5. 精密加工中電規準的控制
  5. Control of electric gauge in precision machining
  精密加工使用的高-檔機床電規準的控制方法一般是智-能化控制的。加工中由計算機監測、判斷電火花加工間隙的狀態,在保持穩定電弧的范圍內自動選擇使加工效率達到高的加工條件。
  In general, the control method of high-grade machine tool electric gauge used in precision machining is intelligent energy control. In the process of machining, the gap state of EDM is monitored and judged by computer, and the machining condition of high machining efficiency is automatically selected within the range of keeping stable arc.
  以上就是由濟南市宏捷模具有限公司對模具精密電火花加工的技術的介紹!希望可以幫到你》。想要了解更多請點擊官網//www.yfrmbf.com.cn
  The above is the introduction of precision EDM technology by Jinan Hongjie mould Co., Ltd! I hope I can help you. For more information, please click //www.yfrmbf.com.cn
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