Manufacturing method and grooving mechanism of aluminum sheath for car air conditioner

Abstract

The invention discloses a manufacturing method of an aluminum sheath for a car air conditioner. The manufacturing method comprises the following steps that 1, an aluminum sheath blank is manufacturedthrough cold extrusion forming; 2, the aluminum sheath blank is inserted into a concave hole of a template with the concave hole, and a ring is placed between the aluminum sheath blank and a hollow cylinder; 3, a hollow grooving column with multiple telescopic blades is inserted into the hollow cylinder, and a stand column is inserted into the grooving column to enable the telescopic blade to stretch out to cut and groove the hollow cylinder; and 4, the stand column and the grooving column are pulled out, the aluminum sheath is taken down, and the finished product is manufactured. The invention further discloses a grooving mechanism of the aluminum sheath for the car air conditioner. The grooving mechanism comprises the template and the grooving mechanism body, the grooving mechanism bodyis composed of an upper plate, a lower plate, multiple hollow outer cylinders and the grooving column, the multiple telescopic blades are connected in the grooving column through springs, and U-shapedtool bits are arranged on the telescopic blades. Multiple air cylinders are arranged on the upper plate, piston rods of air cylinders penetrate through the upper plate and are connected with the stand column, and multiple through holes are formed in the lower plate.

Description

technical field [0001] The invention relates to a method for manufacturing an aluminum sleeve for an automobile air conditioner and a groove-digging mechanism thereof. Background technique [0002] The applicant's previous authorized patent CN 105268788 B discloses a method for manufacturing a vehicle air-conditioning muffler. The cold extrusion forming technology of aluminum bar parts is also applicable to the manufacture of aluminum sleeve blanks. [0003] But because the aluminum sleeve designed by the applicant is used in conjunction with the stainless steel insert sleeve, it is necessary to dig out a plurality of grooves in the hollow cylinder of the aluminum sleeve blank to make it have bending space, and due to the wall thickness of the hollow cylinder It is too thin to be directly cold-extruded, and due to the narrow processing space, the aluminum column wall is easily deformed, and post-processing is also difficult. Contents of the invention [0004] The object o...

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Problems solved by technology

[0003] But because the aluminum sleeve designed by the applicant is used in conjunction with the stainless steel insert sleeve, it is necessary to dig out a plurality of grooves in the hollow cylinder of the aluminum sleeve blank to make it have bending space, and due to the wall thickness of the hollow cylinder It is thin and cannot be directly cold-extruded, and because of the narrow processing space, the aluminum column wall is easily deformed, and post-processing is also difficult

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