KR950004231B1 - Method for making a hole camshaft of automobile - Google Patents
Method for making a hole camshaft of automobile Download PDFInfo
- Publication number
- KR950004231B1 KR950004231B1 KR1019900021344A KR900021344A KR950004231B1 KR 950004231 B1 KR950004231 B1 KR 950004231B1 KR 1019900021344 A KR1019900021344 A KR 1019900021344A KR 900021344 A KR900021344 A KR 900021344A KR 950004231 B1 KR950004231 B1 KR 950004231B1
- Authority
- KR
- South Korea
- Prior art keywords
- steel pipe
- camshaft
- hollow
- mold
- manufacturing
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D23/00—Casting processes not provided for in groups B22D1/00 - B22D21/00
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
Description
제1도는 본 발명에 따른 강철파이프에 나선홈이 형성된 상태를 나타낸 측면도.1 is a side view showing a state in which a spiral groove is formed in the steel pipe according to the present invention.
제2도는 본 발명에 따른 상기 강철파이프가 주물에 삽입되어진 상태를 나타낸 부분확대 단면도이다.2 is a partially enlarged cross-sectional view illustrating a state in which the steel pipe according to the present invention is inserted into a casting.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 강철파이프 2 : 나선홈1: steel pipe 2: spiral groove
3 : 주철부 4 : 캠축모울드3: cast iron part 4: camshaft mold
5 : 탕도5: Tangdo
본 발명은 자동차용 중공캠축의 제조방법에 관한 것으로, 특히 주물과의 결합력과 비틀림응력을 증대시킨 자동차용 중공감축의 제조방법에 관한 것이다.The present invention relates to a method for manufacturing a hollow camshaft for automobiles, and more particularly, to a method for manufacturing hollow reduction for automobiles in which the bonding force and the torsion stress with the casting are increased.
일반적으로 자동차용 중공캠축의 제조방법은 강철파이프를 캠축모울드에 삽입시킨 뒤, 탕도를 통하여 강철파이프가 장착된 상기 캠축모울드네에 용탕을 주입하여 중공캠축을 제조하는 바, 그러나, 이같은 중공캠축의 종래 제조방법은 중공재의 주조용 코어인 상기 강철파이프가 원통형으로 형성되어 있음에 따라 주철부와의 결합력이 떨어짐에 따라 강도가 낮고, 반복되는 비틀림응력과 굽힘응력을 받으므로써, 중공재 코어인 강철파이프와 주철부가 분리되는 문제점이 있다.In general, a method for manufacturing a hollow camshaft for automobiles is to insert a steel pipe into a camshaft mold, and then to inject a molten metal into the camshaft moldne equipped with a steel pipe through a ballway to manufacture a hollow camshaft. In the conventional manufacturing method, as the steel pipe, which is a core for casting a hollow material, is formed in a cylindrical shape, the strength is low as the bonding force with the cast iron is reduced, and the repeated torsional stress and bending stress are applied. There is a problem that the pipe and the cast iron is separated.
이에 본 발명은 상기와 같은 문제점을 해결하기 위해 안출해 낸 것으로, 중공재 코어인 강철파이프의 경량화를 도모하면서 상기 강철파이프와 주물과의 결합력을 증대시킨 자동차용 중공캠축의 제조방법을 제공함에 그 목적이 있다.Accordingly, the present invention has been made to solve the above problems, to provide a method of manufacturing a hollow camshaft for automobiles to increase the bonding force between the steel pipe and the casting while reducing the weight of the steel pipe, which is a hollow core. There is a purpose.
상기와 같은 목적을 달성하기 위한 본 발명은 원통형 강철파이프의 외면에 연속적인 나선홈을 형성시키고, 이 강철파이프를 캠축모울드 중앙에 코어형식으로 삽입시켜 놓은 다음에 용탕을 탕도를 통해 부어 넣어 중공캠축을 제조하도록 되이 있다.The present invention for achieving the above object is to form a continuous spiral groove on the outer surface of the cylindrical steel pipe, the steel pipe is inserted into the core form in the center of the camshaft mold and then poured into the molten metal through the hollow It is intended to manufacture a camshaft.
이하 본 발명을 첨부된 예시도면에 의거 상세히 설명한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
본 발명에 따른 자동차용 중공캠축의 제조방법은 원통형 강철파이프(1)의 외면에 연속적인 나선홈(2)을 형성시키고, 이 나선홈(2)이 형성된 강철파이프(1)를 캠축모울드(4)에 장착시킨 후 당도(5)를 통해 용탕을 부어넣어 중공캠축을 제조한다.In the method of manufacturing a hollow camshaft for an automobile according to the present invention, a continuous spiral groove 2 is formed on an outer surface of a cylindrical steel pipe 1, and the steel shaft 1 having the spiral groove 2 is formed on a camshaft mold 4. ) And then poured into the melt through the sugar (5) to produce a hollow camshaft.
이와같이 이루어지는 본 발명에 따른 자동차용 중공캠축의 제조방법에서 코어재인 상기 강철파이프(1)의 외면에는 나선홈(2)이 형성되어 있는 바, 따라서 상기 강철파이프(1)가 캠축모울드(4)에 끼워 장착되어질 때 이 강철파이프(1)의 나선홈(2)은 캠축모울드(4)에 주입되는 주철부(3)와 견고하게 결합되므로서 상기 강철파이프(1)와 주철부(3)사이의 결합력이 증대되어 중공캠축의 강도를 향상시키고, 이 강철파이프(1)가 주철부(3)에서 이탈되어지지 않고, 비틀림응력에도 충분히 대응할 수가 있도록 되어 있다.In the method of manufacturing a hollow camshaft for automobiles according to the present invention, a spiral groove 2 is formed on an outer surface of the steel pipe 1 as a core material. Thus, the steel pipe 1 is formed on the camshaft mold 4. The spiral grooves 2 of the steel pipe 1, when fitted, are firmly coupled to the cast iron portion 3 injected into the camshaft mold 4, thereby forming a gap between the steel pipe 1 and the cast iron portion 3. Coupling force is increased to improve the strength of the hollow camshaft, so that the steel pipe 1 is not detached from the cast iron portion 3 and can cope with torsional stress sufficiently.
또한, 당기 강철파이프(1)에 나선홈(2)을 형성시킴에 따라 상기 코어인 강철파이프(1)의 중량을 감소시켜 중공캠축올 경량화시킨 잇점도 갖추게 된다. 한편, 중공캠축을 제조하기 위해 상기 강철파이프(1)가 내장된 캠축모울드(4)의 탕도(5)로 용탕을 주입시킴으로서 중공캠축이 제조되어진다.In addition, by forming the spiral groove (2) in the pulled steel pipe (1) also has the advantage of reducing the weight of the hollow cam shaft by reducing the weight of the steel pipe (1) as the core. Meanwhile, the hollow camshaft is manufactured by injecting molten metal into the tap water 5 of the camshaft mold 4 in which the steel pipe 1 is embedded to manufacture the hollow camshaft.
따라서 본 발명에 따른 자동차용 중공캠축의 제조방법은 종래의 중공캠축의 제조방법에 비해 주물소재와 강철파이프의 결합력을 증대시키고, 중량도 경량화시킨 잇점이 있다.Therefore, the manufacturing method of the hollow camshaft for automobiles according to the present invention has the advantage of increasing the bonding force of the casting material and the steel pipe, and the weight is lighter than the conventional manufacturing method of the hollow camshaft.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019900021344A KR950004231B1 (en) | 1990-12-21 | 1990-12-21 | Method for making a hole camshaft of automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019900021344A KR950004231B1 (en) | 1990-12-21 | 1990-12-21 | Method for making a hole camshaft of automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR920011619A KR920011619A (en) | 1992-07-24 |
| KR950004231B1 true KR950004231B1 (en) | 1995-04-27 |
Family
ID=19308096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019900021344A KR950004231B1 (en) | 1990-12-21 | 1990-12-21 | Method for making a hole camshaft of automobile |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR950004231B1 (en) |
-
1990
- 1990-12-21 KR KR1019900021344A patent/KR950004231B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR920011619A (en) | 1992-07-24 |
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