Automobile air intake end conical shell body and machining method thereof

Abstract

The invention discloses an automobile air intake end conical shell body. The air intake end conical shell body is of a tobacco-pipe-body-shaped structure and is in an irregular curved surface shape; the two ends of the air intake end conical shell body are provided with ports communicating with each other; the air intake end conical shell body comprises a first pre-catalyzing air intake semi-shelland a second pre-catalyzing air intake semi-shell, and the first pre-catalyzing air intake semi-shell and the second pre-catalyzing air intake semi-shell are in overlap joint with each other throughoverlap edges to be spliced into the air intake end conical shell body; the first pre-catalyzing air intake semi-shell is provided with a first air hole, a boss is arranged in the position close to the first air hole, the boss and the first pre-catalyzing air intake semi-shell are integrally formed, and a second air hole penetrates through the boss; and the second pre-catalyzing air intake semi-shell is provided with a third air hole penetrating through the second pre-catalyzing air intake semi-shell, and the third air hole is opposite to the first air hole. According to the automobile air intake end conical shell body and a machining method thereof, machining is easy, and in addition, the part forming quality is high.

Description

technical field [0001] The invention belongs to the field of automobile exhaust systems, and in particular relates to an automobile intake end cone shell and a processing method thereof. Background technique [0002] The automobile exhaust system is an important system component in the working process of the automobile engine, and the intake end cone shell in the exhaust system is connected to the top of the catalytic converter cylinder, and the catalytic converter directly passes through the intake end cone shell It is connected to the back of the exhaust manifold; the surface of the connection part of the large and small ports is more complicated, and it requires high precision of the parts, and in order to ensure that the interior of the airflow channel minimizes carbon deposition, it is also necessary to ensure that the shell does not have defects such as wrinkles, and now Some intake end cone processing methods use casting molding, which is not only very inefficient, bu...

AI Technical Summary

Problems solved by technology

[0002] The automobile exhaust system is an important system component in the working process of the automobile engine, and the intake end cone shell in the exhaust system is connected to the top of the catalytic converter cylinder, and the catalytic converter directly passes through the intake end cone shell It is connected to the back of the exhaust manifold; the surface of the connection part of the large and small ports is more complicated, and it requires high precision of the parts, and in order to ensure that the interior of the airflow channel minimizes carbon deposition, it is also necessary to ensure that the shell does not have defects such as wrinkles, and now Some intake end cones are processed by casting, which is not only very inefficient, but also prone to defects such as cracks and air bubbles, which affect the use

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