Terminal mold accessory for precision mold casting

Abstract

The invention discloses a terminal mold accessory for precision mold casting. The terminal mold accessory comprises a guide pillar and a guide sleeve. One end of the guide pillar penetrates an anti-abrasion inner barrel arranged in the guide sleeve. The outer surface and the inner wall of the anti-abrasion inner barrel are each provided with a plurality of grooves arranged at equal distances. A ball is arranged in each groove. A first spring, a guiding connecting piece and a second spring are sequentially arranged on the outer surface of the guide pillar from left to right. A first casing pipe is arranged on the outer surface of the guide pillar. One side face, close to the guide sleeve, of the guiding connecting piece is fixedly connected with one end of the first casing pipe. According to the terminal mold accessory for precision mold casting, in the long-time work state, abrasion damage between the guide pillar and the guide sleeve can be effectively avoided, and therefore accuracy of guiding locating of a terminal mold is guaranteed, then the phenomenon that large shape and position errors happen to a precision mold can be effectively avoided, the casting cost is reduced, the production efficiency is improved, and the aim of batch production is achieved.

Description

technical field [0001] The invention relates to the technical field of precision mold casting, in particular to a terminal mold fitting for precision mold casting. Background technique [0002] Precision casting is widely used in the casting of precision and complex parts. However, in the process of producing precision castings by general machining, the friction between the outer surface of the guide post on the terminal mold of the precision mold and the inner wall of the guide sleeve is relatively large. , in the long-term working condition, both the outer surface of the guide post and the inner wall of the guide sleeve will cause different degrees of friction damage, thus losing the accuracy of the positioning of the terminal mold, which in turn will cause large precision molds Errors in shape and position lead to rework and reshaping of the produced products, which increases casting costs, reduces production efficiency, and fails to meet the requirements of mass producti...

AI Technical Summary

Problems solved by technology

[0002] Precision casting is widely used in the casting of precision and complex parts. However, in the process of producing precision castings by general machining, the friction between the outer surface of the guide post on the terminal mold of the precision mold and the inner wall of the guide sleeve is relatively large. , in the long-term working condition, both the outer surface of the guide post and the inner wall of the guide sleeve will cause different degrees of friction damage, thus losing the accuracy of the positioning of the terminal mold, which in turn will cause large precision molds Errors in shape and position lead to rework and reshaping of the produced products, which increases casting costs, reduces production efficiency, and cannot meet the requirements of mass production.

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