KR930011362B1 - Making method of the internal diameter in cylinder - Google Patents

Making method of the internal diameter in cylinder Download PDF

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Publication number
KR930011362B1
KR930011362B1 KR1019910023793A KR910023793A KR930011362B1 KR 930011362 B1 KR930011362 B1 KR 930011362B1 KR 1019910023793 A KR1019910023793 A KR 1019910023793A KR 910023793 A KR910023793 A KR 910023793A KR 930011362 B1 KR930011362 B1 KR 930011362B1
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KR
South Korea
Prior art keywords
cylinder
head
inner diameter
head cover
guide jig
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KR1019910023793A
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Korean (ko)
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KR930013533A (en
Inventor
권길상
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주식회사 금성사
이헌조
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Priority to KR1019910023793A priority Critical patent/KR930011362B1/en
Publication of KR930013533A publication Critical patent/KR930013533A/en
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Publication of KR930011362B1 publication Critical patent/KR930011362B1/en

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B35/00Methods for boring or drilling, or for working essentially requiring the use of boring or drilling machines; Use of auxiliary equipment in connection with such methods

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Compressor (AREA)

Abstract

This method for preventing the deformation of a cylinder caliber in case of assembling a cylinder and a head cover grinds the caliber with a guide jig (13) set on a cylinder in order to grant the conditions to assemble a head cover (15) and a head (16) on a cylinder (14); grinding the caliber, assembles the head (16) and the head cover (15) after detaching the guide jig (13) from the cylinder (14) whose caliber is grinded completely.

Description

밀폐형 전동 압축기의 실린더 내경 가공방법Cylinder inner diameter processing method of hermetic electric compressor

제1도는 전동압축기의 구조를 나타내는 단면도.1 is a cross-sectional view showing the structure of an electric compressor.

제2도는 종래 실린더 가공 공정을 나타내는 단면도.2 is a cross-sectional view showing a conventional cylinder machining process.

제3도는 본 발명 실린더 가공 공정을 나타내는 단면도.3 is a cross-sectional view showing a cylinder machining process of the present invention.

제4a도는 본 발명 실린더 가공 공정에 사용되는 가이드 지그를 나타내는 측면도.Figure 4a is a side view showing a guide jig used in the cylinder machining step of the present invention.

제4b도는 a도의 A-A'선 단면도.4B is a cross-sectional view along the line A-A 'in FIG.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

13 : 가이드 지그 14 : 실린더13: guide jig 14: cylinder

14a : 내경 15 : 헤드카바14a: inner diameter 15: head cover

16 : 헤드16: head

본 발명은 밀폐형 전동 압축기의 실린더에 있어서 실린더와 헤드카버와의 조립시에 발생하는 실린더 내경의 변형을 방지하는 실린더 내경 가공 방법에 관한 것으로서, 특히 실린더의 내경을 연마하는 과정에서 헤드카바와 동일한 체결 조건을 실린더에 부여하는 가이드 지그를 실린더에 체결한 상태에서 실린더 내경을 연마하도록 하므로써 실린더 내경의 연마후 헤드카바를 실린더를 체결하여도 실린더에 변형이 발생하지 않도록 한 것이다.The present invention relates to a cylinder inner diameter processing method for preventing the deformation of the cylinder inner diameter generated during assembly of the cylinder and the head cover in the cylinder of the hermetic electric compressor, in particular the same fastening as the head cover in the process of grinding the inner diameter of the cylinder The inner diameter of the cylinder is polished while the guide jig giving conditions to the cylinder is fastened to the cylinder, so that deformation of the cylinder does not occur even if the head cover is tightened after the grinding of the cylinder inner diameter.

일반적으로 밀폐형 압축 전동기는 제1도에 도시된 바와 같이 밀폐용기(1) 내부에 전동기(2)를 설치하여 전동기(2)의 회전자(3)에 크랭크축(4)을 압입 고정하고, 크랭크축(4)의 상부인 핀부(4-1)에는 슬라이더(5) 및 셀슬라이더(6)과 함께 피스톤(7)을 조립하여 피스톤(7)이 실린더(8)내에서 왕복 직선 운동한다.In general, the hermetic compression motor installs the electric motor 2 inside the hermetic container 1 as shown in FIG. 1 to press-fit the crankshaft 4 to the rotor 3 of the electric motor 2, and to crank the crank. In the pin portion 4-1, which is the upper portion of the shaft 4, the piston 7 is assembled together with the slider 5 and the cell slider 6 so that the piston 7 reciprocates linearly in the cylinder 8.

그리고, 상기 실린더(8)에는 헤드(9)와 헤드카바(11)를 볼트(10)로써 체결하였다.Then, the head 9 and the head cover 11 were fastened to the cylinder 8 by bolts 10.

또한, 상기 실린더(8)의 가공은 다음과 같은 공정으로 이루어졌다.In addition, the process of the said cylinder 8 was comprised with the following process.

즉, 제2도의 (a)와 같이 실린더(8)의 내경(8-1)을 연마하고, 내경(8-1)의 연마가 완료된 실린더(8)에 제2도의 (b)와 같이 헤드(9)와 헤드카바(11)를 볼트(10)로써 체결하였다.That is, the inner diameter 8-1 of the cylinder 8 is polished as shown in FIG. 2A, and the head 8 as shown in FIG. 2B is polished to the cylinder 8 on which the inner diameter 8-1 is polished. 9) and the head cover 11 were fastened with bolts 10.

그러나, 상기와 같이 실린더 내경을 연마한 뒤 실린더에 헤드와 헤드 카바를 볼트로써 볼트(10)의 체결력에 의해 체결하는 가공방법은 실린더(8)의 볼트 체결부위와 볼트(10)가 서로 끌어당기는 응력이 발생하게 되고, 이러한 응력에 의해 실린더(8)가 찌그러지는 변형을 일으켜 실린더 내경(8-1)의 진원도나 원통도가 크게 저하되는 결점이 있었다.However, as described above, the grinding method of tightening the cylinder inner diameter and fastening the head and the head cover to the cylinder by the fastening force of the bolt 10 is performed by the bolt fastening portion of the cylinder 8 and the bolt 10 attracting each other. The stress is generated, and the stress causes deformation of the cylinder 8, resulting in a decrease in the roundness and the cylindricality of the cylinder inner diameter 8-1.

그리고 내경(8-1)의 진원도와 원통도가 저하되는 경우에는 피스톤(7)이 왕복 직선운동 할때 피스톤(7)이 실린더(8)의 내주면으로 부터 간섭을 받아 정지되는 현상이 발생하는 결점도 있었다.In addition, when the roundness and the cylinder degree of the inner diameter 8-1 are reduced, the piston 7 stops due to interference from the inner circumferential surface of the cylinder 8 when the piston 7 reciprocates linearly. There was also.

본 발명은 실린더의 내경의 가공이 종료한 뒤 실린더에 헤드와 헤드카바를 볼트로써 체결하여도 실린더의 내경에 변형이 발생하지 않고 원통도나 진원도를 유지할 수 있는 가공방법을 제공함에 그 목적이 있다.An object of the present invention is to provide a processing method that can maintain the degree of cylindricality or roundness without deformation in the inner diameter of the cylinder even if the head and the head cover is fastened to the cylinder after the end of the machining of the inner diameter of the cylinder.

본 발명은 이를 위하여 실린더의 내경을 연마하는 과정에서 가이드 지그를 이용하여 실린더에 헤드와 헤드카바의 체결상태를 부여하므로써 실린더의 연마후에 실린더에 헤드와 헤드카바를 볼트로써 체결하여도 실린더에 변형이 발생하지 않도록 한 것이다.The present invention provides a fastening state of the head and the head cover to the cylinder by using the guide jig in the process of polishing the inner diameter of the cylinder for this purpose, even if the head and the head cover to the cylinder after the grinding of the cylinder by bolts, It does not occur.

첨부된 도면중 제3도는 본 발명 실린더 가공 공정을 나타내는 공정도이고, 제4도는 본 발명 실린더 가공공정에 사용되는 가이드 지그를 나타내는 측면도 및 단면도로서 상기 도면에 따라 본 발명의 실시예를 설명하면 다음과 같다.3 is a process diagram showing a cylinder machining process of the present invention, and FIG. 4 is a side view and a cross-sectional view showing a guide jig used in the cylinder machining process of the present invention. same.

실린더(14)에는 제3도(a)와 같이 내경(14a)을 연마하기 전에 가이드 지그(13)를 볼트(18)로써 체결한다.The guide jig 13 is fastened to the cylinder 14 with the bolt 18 before grinding | polishing the inner diameter 14a like FIG. 3 (a).

상기 볼트(10)는 실린더(14)에 헤드(16)와 헤드카바(15)를 고정시키는 볼트(10)와 같은 것을 사용하고 볼트(10)의 체결력도 동일하게 한다.The bolt 10 is the same as the bolt 10 for fixing the head 16 and the head cover 15 to the cylinder 14 and the fastening force of the bolt 10 is also the same.

상기 가이드 지그(13)에는 제4도에서와 같이 실린더(14)의 내경(14a)와 유사한 크기의 내경(13a)을 형성하고, 볼트(10)가 관통하기 위한 볼트공(13b)을 형성하며, 가이드 지그(13)의 두께(t)는 헤드(16)와 헤드카바(15)의 두께를 합산한 것과 유사하게 형성한다.In the guide jig 13, as shown in FIG. 4, an inner diameter 13a having a size similar to that of the inner diameter 14a of the cylinder 14 is formed, and a bolt hole 13b for penetrating the bolt 10 is formed. The thickness t of the guide jig 13 is formed similarly to the sum of the thicknesses of the head 16 and the head cover 15.

그리고, 가이드 지그(13)가 체결된 실린더(14)의 내경을 연마하고, 연마가 완료된 실린더(14)의 가이드지그(13)를 제거한다.Then, the inner diameter of the cylinder 14 to which the guide jig 13 is fastened is polished, and the guide jig 13 of the completed cylinder 14 is removed.

이어서, 실린더(14)에는 헤드(16)와 헤드카버(15)를 볼트(10)로써 체결한다.Next, the head 16 and the head cover 15 are fastened to the cylinder 14 by bolts 10.

상기와 같이 연마가 종료된 실린더(14)에서 가이드 지그(13)를 분리하면 실린더(14)의 내경(14a)에 변형이 일어나 진원도 및 원통도가 저하되지만 실린더(14)에 헤드(16)와 헤드카바(15)를체결하면 볼트(10)의 체결력에 의해 실린더 내경(14a)은 연마직후의 원래 상태로 복귀하게 된다.When the guide jig 13 is removed from the cylinder 14 that has been polished as described above, the inner diameter 14a of the cylinder 14 is deformed, thereby reducing the roundness and the cylindricalness. When the head cover 15 is fastened, the cylinder inner diameter 14a is returned to the original state just after grinding by the fastening force of the bolt 10.

이와 같은 본 발명은 실린더(14)를 실제적으로 사용하고 있는 상태와 동일한 조건하에서 실린더(14)의 내경(14a)을 연미하게 되므로 실린더에 헤드와 헤드카바를 볼트로 체결할때 볼트의 체결력에 의해 실린더가 찌그러져 변형되는 현상을 방지할 수 있게 되는 특징이 있다.In the present invention as described above, the inner diameter 14a of the cylinder 14 is slightly reduced under the same conditions as the state in which the cylinder 14 is actually used. There is a feature that can prevent the cylinder from being deformed and deformed.

Claims (1)

실린더(14)에 헤드카버(15)와 헤드(16)를 체결하는 체결조건을 부여하기 위해 가이드 지그(13)를 실린더(14)에 체결하여 내경(14a)을 연마하고, 내경(14a)의 연마가 종료된 실린더(14)로 부터 가이드 지그(13)를 제거한 뒤 헤드(16)와 헤드카버 (15)를 체결하는 것을 특징으로 하는 밀폐형 전동 압축기의 실린더 내경 가공 방법.In order to impart a fastening condition for fastening the head cover 15 and the head 16 to the cylinder 14, the guide jig 13 is fastened to the cylinder 14 to polish the inner diameter 14a, and A cylinder bore processing method for a hermetic electric compressor, characterized in that the head (16) and the head cover (15) are fastened after removing the guide jig (13) from the finished cylinder (14).
KR1019910023793A 1991-12-21 1991-12-21 Making method of the internal diameter in cylinder KR930011362B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019910023793A KR930011362B1 (en) 1991-12-21 1991-12-21 Making method of the internal diameter in cylinder

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Application Number Priority Date Filing Date Title
KR1019910023793A KR930011362B1 (en) 1991-12-21 1991-12-21 Making method of the internal diameter in cylinder

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KR930013533A KR930013533A (en) 1993-07-22
KR930011362B1 true KR930011362B1 (en) 1993-12-04

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Publication number Priority date Publication date Assignee Title
BE1017462A3 (en) * 2007-02-09 2008-10-07 Ct Rech Metallurgiques Asbl DEVICE AND METHOD FOR COOLING ROLLING CYLINDERS IN HIGHLY TURBULENT.

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