Valve body flange mould of driling

The utility model discloses a valve body flange mould of driling, include: the mould body: wherein heart -shapedly become the through -hole, its bottom is formed with the location bulge loop, the contained angle that location bulge loop port external diameter is less than its root external diameter...

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Bibliographic Details
Main Author LIU AIWU
Format Patent
LanguageChinese
English
Published 30.11.2016
Subjects
BORING
MACHINE TOOLS
METAL-WORKING NOT OTHERWISE PROVIDED FOR
PERFORMING OPERATIONS
TRANSPORTING
TURNING
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Summary:The utility model discloses a valve body flange mould of driling, include: the mould body: wherein heart -shapedly become the through -hole, its bottom is formed with the location bulge loop, the contained angle that location bulge loop port external diameter is less than its root external diameter and surface and vertical direction is 23, the bilateral symmetry of location bulge loop be formed with vertical drilling, the drill bushing: arrange in in the drilling and with drilling interference fit. The utility model discloses a drilling mould, simple structure utilizes 23 jiaos in backing ring groove and opening size location, and is efficient, the high and convenient and fast of precision. 本实用新型公开了种阀体法兰钻孔模具，包括：模具本体：其中心形成通孔，其底部形成有定位凸环，所述定位凸环端口外径小于其根部外径且外表面与竖直方向的夹角为23°；所述定位凸环的两侧对称的形成有竖直的钻孔；钻套：置于所述钻孔内且与钻孔过盈配合。本实用新型的钻孔模具，结构简单，利用垫环槽23°角和开口尺寸定位，效率高，精度高且方便快捷。
Bibliography:Application Number: CN20162428265U