The invention belongs to the technical field of deep hole EDM, in particular relates to an electrode tube for eliminating the electrolytic corrosion products by using a small hole reflux, and is used to solve the problem that the electrolytic corrosion products are difficult to discharge when deep holes are machined by EDM. The invention comprises an electrode and an electrode hole. The electrode is machined with an electrode inclined hole. The working fluid flows through the middle hole of the electrode and flows out from the bottom of the electrode hole and the bottom of the electrode respectively. The angle between the oblique hole of the electrode and the hole in the electrode is sharp, and the working fluid flows from the deep hole to the shallow part of the hole after flowing out of the oblique hole of the electrode. The working fluid flows through the inclined hole of the electrode, and its flow direction is opposite to that flowing through the inclined hole of the electrode. The diameter of the inclined hole is smaller than that of the electrode. The outlet of the electrode inclined hole is located above the corrosion product. The inclined hole of the electrode can be 1 or 2 or more. The invention can expedite the discharge of electrolytic corrosion products at one place, two places or more places, prevent or eliminate the blockage of electrolytic corrosion products, and improve the quality and efficiency of deep hole processing by using negative pressure.
【技术实现步骤摘要】
利用小孔反流排除电蚀产物的电极管
本专利技术属于电火花加工深孔
,具体涉及利用小孔反流排除电蚀产物的电极管。
技术介绍
随着科学技术和工业生产的发展,电火花加工深孔日趋广泛。对其深孔加工技术提出了更高的要求。在以电火花加工深孔过程中,难以观察加工部位和电极管状况。现有电火花加工技术中,电极管外部一般为圆柱体。在加工长径比大于5~10的孔时,电极长径比大,电蚀产物不容易排出,有时甚至出现堵塞,使深孔加工时间长、质量低,还会造成零件报废或产品的质量事故。因此及时排出电蚀产物,确保电火花加工深度的精度,是需要解决的重要课题,也是尚未解决的技术难题。
技术实现思路
本专利技术的目的:针对电火花加工深孔时电蚀产物不容易排出这一技术难题,提出相关解决方案,通过增加电极斜孔,提高排出电蚀产物的能力,提高深孔加工的加工速度和精度。本专利技术采用如下技术方案实现(参见说明书附图1):利用小孔反流排除电蚀产物的电极管,包括电极3、电极中孔4和电极3上加工的多个电极斜孔5。电极斜孔5自上而下、并围绕电极轴线分布。电极3做进给运动,完成深孔的电火花加工,工作液经过电极中孔4,分别从电极斜孔5和电极底端流出。现有技术中,电极通常没有电极斜孔,工作液只能从电极底端流出。现有技术中虽然工作液能够冷却电极,并在流动时将电蚀产物从电极外部与所加工孔间隙中排出,但在孔的深度较大时,现有技术排除电蚀产物比较困难。本专利技术在电极上加工电极斜孔,电极斜孔与电极中孔的夹角为锐角,当工作液从电极斜孔流出后,将从孔的深处流向孔的浅部,能够将电蚀产物排出。工作液流经电极斜孔后,其流动方向与其流经电极斜 ...
【技术保护点】
1.利用小孔反流排除电蚀产物的电极管,包括电极(3)、电极中孔(4),其特征在于电极(3)上加工有电极斜孔(5);工作液流过电极中孔(4),并分别从电极斜孔(5)和电极底端流出;电极斜孔与电极中孔的夹角为锐角,且工作液从电极斜孔流出后,从所加工深孔的深处流向所加工深孔的浅部,工作液流经电极斜孔后,其流动方向与其流经电极斜孔前的流动方向相反;电极斜孔直径小于电极中孔直径。
【技术特征摘要】
1.利用小孔反流排除电蚀产物的电极管,包括电极(3)、电极中孔(4),其特征在于电极(3)上加工有电极斜孔(5);工作液流过电极中孔(4),并分别从电极斜孔(5)和电极底端流出;电极斜孔与电极中孔的夹角为锐角,且工作液从电极斜孔流出后,从所加工深孔的深处流向所加工深孔的浅部,工作液流经电极斜孔后,其流动方向与其流经电极斜孔前的流动方向相反;电极斜孔直径小于电极中孔直径。2.根据权利要求1所述...
【专利技术属性】
技术研发人员:于大国,李瑞宣,王志伟,
申请(专利权)人:中北大学,
类型:发明
国别省市:山西,14
还没有人留言评论。发表了对其他浏览者有用的留言会获得科技券。