JPS62248894A - Manufacture of enclosed shell for rotary compressor - Google Patents

Abstract

PURPOSE:To shorten the manufacturing time by forming a plurality of contacting sections on the outer circumferential face of an end shell to be fitted in a drum shell through shaving. CONSTITUTION:An endshell 3 having a fitting section 3a and a body 3d is fitted to the end of a drum shell 2 through light pressure insertion. A plurality of contacting sections 3c are formed by the shaving work section 3b of the endshell 3. A shaving die lowers to perform shaving work thus forming the contacting sections 3c. Consequently, the conventional machining through a lathe is eliminated thereby the manufacturing time can be shortened with the facility of fitting work being satisfied.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a method of manufacturing a hermetic shell for a rotary compressor used in a refrigerator or the like.

2. Description of the Related Art In recent years, rotary compressors have been used in household refrigerators, and large quantities are required, but there are some parts of the manufacturing process that do not allow for mass production. In the present invention, in order to improve mass productivity, machining in the end shell manufacturing process is omitted and shaving processing is performed using a press. An example of the conventional rotary compressor (hereinafter referred to as a compressor) described above will be described below with reference to the drawings. Figure 4 shows a cross section of a conventional compressor, where 1o is a compressor;
1 is a body shell; 12 is an outer peripheral portion 12a on the body shell;
The end shells A and 13 are the end shells B and the outer circumferential portion 13a is fitted to the body shell. End shell A.

After B was press-formed, the outer peripheral parts 12a and 13a were machined using a lathe, and these parts were fitted into the body shell 11.

□Problems to be Solved by the Invention However, due to the force, the above configuration has the problem that machining requires a large amount of man-hours and time.

In view of the above-mentioned problems, the dumb invention is Endoshiru A.

For both B, we stopped the machining process, which requires a lot of man-hours and time, and replaced it with a shaving process using a press, which satisfies the fitting conditions, creating a highly mass-produced method for manufacturing the hermetic shell of a compressor. This is what we provide.

Means for Solving the Problems In order to solve the above problems, the method of manufacturing a hermetic shell for a compressor according to the present invention comprises a body shell and an end shell fitted to an end of the body shell, A method of manufacturing a sealed shell for a rotary compressor, in which a plurality of abutting portions are formed by shaving on the outer peripheral surface of the end shell that is fitted into the body shell.

Function: With the above-described configuration, the present invention eliminates the conventional machining using a lathe on the outer circumferential surface of the end shell and performs shaving processing using a press, while still achieving ease of fitting work. , it is possible to provide a method for manufacturing a hermetic shell for a compressor that can be extremely mass-produced.

EXAMPLE Below, a method for manufacturing a hermetic shell for a compressor according to an embodiment of the present invention will be explained with reference to the drawings. Figure 1 is a perspective view of an end shell, and Figure 2 is a body shell and an end shell of a rotary compressor. FIG. In FIGS. 1 and 2, 1 is a compressor, 2 is a body shell, and 3 is an end shell that is lightly press-fitted into the end of the body shell 2. The end shell 3 includes a fitting part 3a, a shaving part 3b, a contact part 3C, and a main body 3d.

As shown in FIG. 1, contact portions 3C are formed by the shaving portion 3b, and the shaving portions are applied at a plurality of locations. FIG. 3 shows a cross-sectional view of the mold at the stage of manufacturing the end shell. The operation of the method for manufacturing a hermetic shell for a rotary compressor will be explained below using FIG. 3.

3 is the end shell, 3b is the shaved part, and 3C is 59 parts. As for the mold, 1o1 is the lower mold, 102 is the presser mold,
1o3 is a shaving type, 101 lower type and 103
A space A is provided between the shaving mold and the shaving mold.

As the shaving mold 103 descends, the shaving portion 3b is shaved, and a contact portion 3C is formed in the gap A.

As described above, according to this embodiment, the body shell 2 and the 5 base 5
゛It consists of an end shell 3 that is fitted and attached to the end of the body shell 2, and a plurality of 59 parts 3 are formed by shaving on the outer peripheral surface of the end shell 3 that is fitted to the body shell 2.
This is a method of manufacturing a hermetic shell for a rotary compressor having a shape C, and has the effect of eliminating the need for lathe machining, which conventionally required many man-hours to cut the end face of the end shell.

Effects of the Invention As described above, the present invention comprises a body shell that incorporates an electric element and a compression element, and an end shell that is fitted and attached to the end of the body shell. This method of manufacturing a hermetic shell for a rotary compressor has the following effects, in which a plurality of abutting portions are formed on the outer circumferential surface of the end shell by shaving.

(1) By abolishing the machining using a lathe, which was conventionally performed on the end face of the end shell, and replacing it with shaving processing using a press, it is possible to achieve ease of mating work and extremely reduce man-hours and time for mass production. can manufacture compressors.

6 ・＼−/゛(2) Since the shaving process only requires a plurality of local operations, the load applied to the shaving press is small and it can be easily performed with a small press machine.

[Brief explanation of drawings]

FIG. 1 is a perspective view of an end shell in an embodiment of the present invention, FIG. 2 is a cross-sectional view of an assembled body shell and end shell of a rotary compressor in an embodiment of the present invention, and FIG. 3 is an end shell in an embodiment of the present invention. FIG. 4 is a sectional view of a conventional rotary compressor.

Claims (1)

[Claims] It consists of a body shell that incorporates an electric element and a compression element, and an end shell that is fitted and attached to the end of the body shell, and a plurality of A method for manufacturing a hermetic shell for a rotary compressor in which individual contact parts are formed.