The invention discloses a processing technology for casting pipe die exhaust holes, which belongs to the field of casting technology. The concrete step is to drill a drill in the outer tube wall of the cast pipe, the bit A does not penetrate the inner wall of the inner tube, and takes out the bit A, changes the bit A and changes a bit B that is smaller than the diameter of the bit 1mm, and welds in the front of the bit B with electric welding. The upper diameter of the bit is smaller than the bit C, which is made into the bit D; the welded bit D is placed in the drill hole before the drill is drilled, and the drill is continued to run through the bit B through the inner tube wall; the bit D is taken out to wear the drill hole. The utility model has the advantages of simple operation, and no need to increase the hollow pipe on the exhaust hole of the inner pipe wall, so that it can play its due role.
【技术实现步骤摘要】
一种铸管管模排气孔的加工工艺
本专利技术涉及一种加工工艺,具体是一种铸管管模排气孔的加工工艺,属于铸造
技术介绍
由于铸管管模排气孔需要内管壁的排气孔的直径比外管壁的排气孔的直径要小,才能达到所需的效果,现有铸管管模排气孔的加工工艺是用电钻机将铸管管模的管壁一次性贯穿,然后再内管壁排气孔处,用外直径与排气孔内直径相配合的空心管放入排气孔内,然后将空心管与排气孔焊接,产生出如图1所示的铸管管模排气孔,这种加工方式不仅麻烦需要制作与排气孔相配合的空心管进行焊接,而且一次性贯穿管壁也比较耗费工人的体力和磨损钻头,这样越是直径大的铸管管模,加工越麻烦。
技术实现思路
针对上述现有技术存在的问题,本专利技术提供一种铸管管模排气孔的加工工艺,操作简便,无需在内管壁排气孔上增加空心管,就可以起到应有的作用。为了实现上述目的,本专利技术采用的技术方案是:一种铸管管模排气孔的加工工艺,具体步骤是:(a)用电钻机在从铸管的外管壁进行钻孔,钻头A不贯穿内管壁,将钻头A取出;(b)将钻头A换下,换一个比钻头A直径小1mm的钻头B;(c)用电焊在钻头B前部焊上直径比其小的钻头C,制成钻头D;(d)将焊好的钻头D放入之前钻好的钻孔内,继续进行钻孔使钻头B贯穿内管壁;(e)将钻头D取出,对排气孔进行打磨。本专利技术的有益效果是:采用这种方式进行加工不仅省去了在内管壁增加空心管的麻烦,使工人的工作效率提高,同时由于不是一次性击穿管壁,也保证了工人操作更方便。附图说明图1是现有技术的管模排气孔剖面示意图;图2是采用本专利技术的管模排气孔剖面示意图;图3是本专利技术采用的钻头示意图。图 ...
【技术保护点】
一种铸管管模排气孔的加工工艺,其特征在于,具体步骤是:(a)用电钻机在从铸管的外管壁进行钻孔,钻头A(2)不贯穿内管壁,将钻头A(2)取出;(b)将钻头A(2)换下,换一个比钻头A(2)直径小1mm的钻头B(3);(c)用电焊在钻头B(3)前部焊上直径比其小的钻头C(4),制成钻头D;(d)将焊好的钻头D放入之前钻好的钻孔内,继续进行钻孔使钻头B(3)贯穿内管壁;(e)将钻头D取出,对排气孔(1)进行打磨。
【技术特征摘要】
1.一种铸管管模排气孔的加工工艺,其特征在于,具体步骤是:(a)用电钻机在从铸管的外管壁进行钻孔,钻头A(2)不贯穿内管壁,将钻头A(2)取出;(b)将钻头A(2)换下,换一个比钻头A(2)直径小1mm的钻...
【专利技术属性】
技术研发人员:范玉洁,
申请(专利权)人:徐州凯锐自动化研究所,
类型:发明
国别省市:江苏,32
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