A Cleaning Method for Semi-closed Complex Inner Cavity Castings

Abstract

The invention discloses a method for cleaning a semi-closed complex inner cavity casting. The method comprises the following steps that a diamond-shaped mat wood reflection sight glass is manufactured; a hook-shaped pneumatic digger is manufactured; a hook-shaped flexible grinding tool is manufactured; the diamond-shaped mat wood reflection sight glass is placed in an inner cavity of the complex casting according to a mode by which the reflection can be achieved; according to the reflected condition of the diamond-shaped mat wood reflection sight glass, sand bumps with larger sizes and fin defects which are formed in a plurality of dead corners of the complex inner cavity casting are removed by utilizing the pneumatic digger; and grinding and finishing are carried out on residual fine sandbumps, fins and groove defects in the plurality of dead corners of the complex inner cavity casting according to the albedo of the diamond-shaped mat wood reflection sight glass, so that fine cleaning of the inner surface is achieved. According to the method for cleaning the semi-closed complex inner cavity casting, the structural adaptability is high, the reflection is clear, operation is easy,the effects of being efficient and labor-saving are achieved, the surface quality defects of the casting with a complex inner cavity structure can be removed accurately, and the casting is unlikely tobe damaged.

Description

technical field [0001] The invention relates to the field of casting, in particular to a method for cleaning semi-closed complex inner cavity castings. Background technique [0002] A large number of high-end equipment and product structural parts adopt complex casting structures. Most of the castings have special-shaped inner cavity structures such as ribs, space curved surfaces, and semi-closed structures, which cause many difficulties in cleaning the castings: [0003] 1. Existing peep mirrors have a small reflection area and limited angles, making it difficult to observe structures with multiple blind spots; workers need to hold the peep mirrors with one hand and perform cleaning operations with the other hand. One-handed operations are often not accurate and can easily injure castings; Long-term work increases the burden on the arm, which is time-consuming and labor-intensive; [0004] 2. There are multiple dead angle structures in semi-closed inner cavity castings. It...

AI Technical Summary

Problems solved by technology

[0003] 1. Existing peep mirrors have a small reflection area and limited angles, making it difficult to observe structures with multiple blind spots; workers need to hold the peep mirrors with one hand and perform cleaning operations with the other hand. One-handed operations are often not accurate and can easily injure castings; Long-term work increases the burden on the arm, which is time-consuming and labor-intensive;

[0004] 2. There are multiple dead angle structures in semi-closed inner cavity castings, and it is difficult for existing tools to perform anti-angle cleaning operations, and the cleaning angle is limited

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