Drill jig fixture for vent plug

Abstract

The invention relates to the technical field of machining equipment and particularly relates to a drill jig fixture for a vent plug. The drill jig fixture comprises a fixture body and a double end bolt, wherein a positioning core is arranged on the fixture body, a bulge is arranged at one end of the positioning core and is sleeved by one end of a through hole of the vent plug, and a threaded hole is formed in the center of the positioning core; the double end bolt penetrates through the through hole of the vent plug, a nut is arranged at one end of the double end bolt, and the other end of the double end bolt is matched with the threaded hole; four drill holes are further formed in the fixture body and are respectively formed in east, west, south and north vertical to the double end bolt, and drill sleeves are mounted at the drill holes. According to the drill jig fixture, the bulge sleeves inside the through hole of the vent plug to position the vent plug, two ends of the vent plug are clamped by virtue of the double end bolt; when holes need to be formed, the fixture and the vent plug are rotated together, a drill bit is located above the drill holes and can be used for drilling, and then the holes are aligned without aligning the positions of the drill holes and the drill bit one by one, so that the operation is convenient, and the machining efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of mechanical processing equipment, in particular to a drilling jig for a vent plug. Background technique [0002] Vent plugs are widely used in the metallurgical industry, such as blast furnace molten iron desulfurization, harmful elements and other pretreatment before steelmaking, refining with porous plugs at the bottom of steelmaking furnaces, continuous casting ladles with porous plugs; machinery manufacturing, such as pure steel foundry Ladle refining, desulfurization, impurity removal and purification pretreatment of molten iron in iron foundry, modification, alloying, carbon addition, etc., purification, degassing and modification of molten aluminum in aluminum foundry, etc. [0003] Vent plugs are typically used as devices installed in passages through the exterior of the ladle to direct gas into the interior of the ladle. Vent plugs may contain pores or passages to allow gas flow to provide gas ag...

AI Technical Summary

Problems solved by technology

Among them, the machining of the drilling program is more difficult, the structure of the vent plug is small, and there are many cavities, the holes on the vent plug are often distributed on different surfaces, and most of the holes are distributed on the arc surface, which brings great difficulties to the processing. It is a lot of inconvenience, every time you drill a hole, you need to find out the relationship between the position of the hole and the position of the drill bit, which is time-consuming and the processing efficiency is low.

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