KR20080088845A - Manufacturing method of belt pulley for automobile - Google Patents
Manufacturing method of belt pulley for automobile Download PDFInfo
- Publication number
- KR20080088845A KR20080088845A KR1020070031648A KR20070031648A KR20080088845A KR 20080088845 A KR20080088845 A KR 20080088845A KR 1020070031648 A KR1020070031648 A KR 1020070031648A KR 20070031648 A KR20070031648 A KR 20070031648A KR 20080088845 A KR20080088845 A KR 20080088845A
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- belt
- pulley
- manufacturing
- belt pulley
- hole
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- Ceased
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 claims abstract description 36
- 238000005242 forging Methods 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 16
- 238000005520 cutting process Methods 0.000 claims abstract description 7
- 238000005096 rolling process Methods 0.000 claims abstract description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 238000010422 painting Methods 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 238000001816 cooling Methods 0.000 abstract description 2
- 238000010273 cold forging Methods 0.000 description 5
- 239000002699 waste material Substances 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000007730 finishing process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/26—Making other particular articles wheels or the like
- B21D53/261—Making other particular articles wheels or the like pulleys
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K1/00—Making machine elements
- B21K1/28—Making machine elements wheels; discs
- B21K1/42—Making machine elements wheels; discs pulleys, e.g. cable pulleys
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pulleys (AREA)
- Forging (AREA)
Abstract
본 발명은 자동차에 사용되는 에어컨용 압축기 풀리, 냉각펌프 구동용 풀리, 발전기 풀리, 파워핸들용 풀리 등과 같은 벨트풀리의 제조방법에 관한 것으로, 공정을 살펴보면, 준비된 강판 소재(1)를 블랭킹하여 전체적으로 원형이면서 중앙에는 추후에 축이 삽입되는 축공이 될 원형의 통공(10)이 형성된 소재(1)를 준비하는 블랭킹 공정과, 소재(1)의 두께를 줄여 바닥면(11)과 외관체부(30)와 축공(20)이 형성 되도록 하는 1차 단조 공정과, 두께를 더욱 줄이면서 축공관체부(20')가 형성되도록 하는 2차 단조 공정과, 기계적 절삭가공이나 전조공정을 통하여 외관체부(30)에 벨트가이드(13)(13') 및 벨트홈(14)을 형성하는 공정으로 구성됨을 특징으로 하는 것인바, 간단한 공정과 저렴한 비용으로 자동차용 벨트풀리를 제공하려는 것이다. The present invention relates to a method for manufacturing a belt pulley, such as a compressor pulley for an air conditioner, a cooling pump driving pulley, a generator pulley, a power handle pulley, etc. used in automobiles. A blanking process for preparing a material 1 having a circular through hole 10 to be a shaft hole into which a shaft is inserted later in the center, and a circular shape, and by reducing the thickness of the material 1, the bottom surface 11 and the exterior body part 30 ) And the primary forging process for forming the shaft hole 20, the secondary forging process for forming the shaft tube body 20 'while further reducing the thickness, and the exterior body portion through the mechanical cutting or rolling process It is characterized in that the belt guide 13, 13 'and the belt groove 14 to form a process for forming a bar, it is to provide a belt pulley for automobiles in a simple process and low cost.
Description
도 1은 본 발명에 의한 공정순서도1 is a process flow chart according to the present invention
도 2는 본 발명에 의한 공정순서별 단면도2 is a cross-sectional view according to the process sequence according to the present invention
***도면의 주요 부분에 대한 부호의 설명****** Description of the symbols for the main parts of the drawings ***
1: 소재1: material
1a: 벨트풀리1a: belt pulley
10: 통공10: through
11: 바닥면11: bottom
13, 13': 벨트가이드13, 13 ': Belt Guide
14: 벨트홈14: belt groove
20: 축공 20: axes
20': 축공관체부20 ': shaft pipe body
30: 외관체부30: exterior body part
40: 연결부40: connection
본 발명은 자동차에 사용되는 에어컨용 압축기 풀리, 냉각펌프 구동용 풀리, 발전기 풀리, 파워핸들용 풀리 등과 같은 벨트풀리의 제조방법에 관한 것으로, 좀더 구체적으로는 철판을 이용한 단계별 냉간단조에 의해 에어컨 풀리를 제조함으로써 간단한 공정과 저렴한 비용으로 자동차용 벨트풀리를 제공하면서 절삭가공의 절감과 풀리의 내구성을 향상시킬 수 있도록 하려는 것이다. The present invention relates to a method for manufacturing a belt pulley, such as a compressor pulley for an air conditioner, a cooling pump driving pulley, a generator pulley, a power handle pulley for use in an automobile, and more specifically, an air conditioner pulley by cold forging step by step using an iron plate. The aim is to provide automotive belt pulleys with a simple process and low cost, while reducing cutting and improving pulley durability.
주지된 바와 같이 자동차에는 엔진의 회전동력을 전달받아 작용을 하는 에어컨용 압축기(콤푸레샤), 냉각수펌프, 발전기, 파워핸들용 유압장치 등이 있는데, 이러한 장치들은 엔진의 동력을 벨트로 전달받기 위하여 벨트풀리를 구성하고 있다. As is well known, automobiles include air conditioner compressors (compressors), coolant pumps, generators, and power steering hydraulics that operate by receiving the engine's rotational power. It consists of a pulley.
이러한 종래의 자동차용 벨트풀리들에 대하여 살펴보면, 통상 로타와 벨트홈 부분을 별도로 제작하여 용접공법에 의해 접합하거나, 주물로 형상을 제작하여 기계가공으로 벨트홈을 제조하는 것으로서, 종래의 이러한 제조방법에 의하면 기본적으로 제조공정이 복잡하고 가공량에 시간과 비용이 많이 소요되며, 열간단조 시에 응력이 많이 발생한 부분에 균열이 발생하기 쉽고 부식이 발생하는 확률도 높은 문제가 있었다.Referring to the conventional belt pulleys for cars, the conventional rota and belt groove parts are manufactured separately and joined by a welding method, or by manufacturing a shape by casting to manufacture a belt groove, such a conventional manufacturing method According to the present invention, the manufacturing process is complicated and takes much time and cost in the amount of processing, and there is a problem that cracks easily occur in a portion where stress is high during hot forging, and a high probability of corrosion occurs.
또한 가공에 의해 절삭되는 부분이 많으므로 상당한 재료의 낭비가 뒤따르고 그에 따라 불필요하게 제조비용이 상승된다는 문제도 있었다.In addition, since there are many parts to be cut by processing, there is also a problem that a considerable waste of material is followed and the manufacturing cost is unnecessarily increased.
상기한 문제점을 감안하여 안출한 본 발명은 강판을 이용하여 비교적 간단한 냉간단조 공정으로 자동차용 벨트풀리를 제조 가능토록 하는 제조방법과 그러한 방법에 의한 벨트풀리를 제공함으로써 제조에 따르는 원가를 절감하면서도 내구성 및 회전체 흔들림(떨림)의 품질을 향상시킬 수 있도록 하는 것을 목적으로 한다.The present invention devised in view of the above problems is to provide a manufacturing method for manufacturing a belt pulley for automobiles using a relatively simple cold forging process using a steel sheet and by providing a belt pulley according to such a method, while reducing the cost of manufacturing and durability And it aims at being able to improve the quality of shake of a rotating body.
본 발명은 판재를 블랭킹(BLANKING)으로서 일정한 크기의 소재를 준비하는 공정과 이후 수차례의 단조 공정을 거치고 전조 또는 가공공정으로 벨트홈을 완성하는 것을 특징으로 하는 것인 바, 이하 첨부된 도면에 의거 상세한 방법과 구성을 살펴보면 다음과 같다.The present invention is characterized in that the belt groove is completed by a blanking or a forging process followed by a process of preparing a material of a predetermined size as a blanking (BLANKING), and then, in the accompanying drawings. The detailed method and configuration are as follows.
도 1은 본 발명에 의한 공정순서도, 도 2는 본 발명에 의한 공정순서별 단면도이다.1 is a process flowchart according to the present invention, Figure 2 is a cross-sectional view according to the process sequence according to the present invention.
블랭킹 공정Blanking process
준비된 판재를 블랭킹하여 전체적으로 원형이면서 중앙에는 추후에 축이 삽입되는 축공이 될 원형의 통공(10)이 형성된 소재(1)를 준비한다.Blanking the prepared plate to prepare a material (1) having a circular through-
이때 소재(1)의 두께 및 외형 치수는 제조가 완료되는 벨트풀리(1a)의 크기와 수차례의 단조 등 가공되는 정도를 감안하여 적절한 크기로 한다.At this time, the thickness and the external dimensions of the
1차 단조 공정1st forging process
소재(1)의 두께를 줄이면서 바닥면(11)이 형성되도록 하고 가장자리 부분에 외관체부(30)를 형성하고 중앙의 통공(10)은 확장시키면서 축공(20)이 형성 되도록 한다.The
2차 단조 공정Secondary forging process
두께를 더욱 줄이면서 축공(20)의 가장자리부가 아래로 밀려나면서 축공관체부(20')가 형성되도록 한다.While further reducing the thickness, the edge of the
벨트가이드 및 벨트홈 형성 공정Belt guide and belt groove forming process
상기와 같이 2차 단조 공정을 완성한 다음에는 두 가지 방법의 완성수단을 통하여 완성이 되는데, 그중 하나의 방법으로는 기계 절삭가공을 통하여 벨트가이드(13)(13') 및 벨트홈(14)을 형성하는 것이고, 또 다른 방법으로는 전조가공을 통하여 벨트가이드(13)(13') 및 벨트홈(14)을 형성하는 것이다. After completing the secondary forging process as described above is completed through the two means of completion, one method of the
이러한 공정 후에 기타 정삭 절삭 가공 및 도장 등의 마무리 공정을 거쳐 벨트풀리(1a)의 제조를 완성하게 된다.After such a process, the finishing of the
이러한 구성으로 된 본 발명은 냉간 단조를 이용하여 자동차용 벨트풀리의 제조가 완성되므로 열간 단조시 가열에 따르는 비용과 시간의 낭비가 없으며, 제품의 치수가 정확하고 가공경화에 의한 경도 증가, 연신율 감소 등과 같은 냉간단조의 특성에 따라 내구성이 더욱 향상된다 할 것이다.The present invention has such a configuration that the manufacturing of the belt pulley for the automobile is completed by using cold forging, there is no waste of cost and time due to heating during hot forging, the dimensions of the product is accurate, the hardness increase due to work hardening, elongation reduction Durability will be further improved according to the characteristics of cold forging such as.
또한 두 차례의 단조 공정과 한 차례의 전조 또는 기계가공 공정으로 벨트풀리가 완성되므로 매우 빠른 시간에 제조가 완료되는 것이며, 절삭가공을 최소화하여 재료의 낭비를 최소화할 수 있는 장점이 있다.In addition, since the belt pulley is completed by two forging processes and one rolling or machining process, the manufacturing is completed in a very quick time, and there is an advantage of minimizing cutting to minimize waste of materials.
그리고 상기 본 발명에서는 총 두 차례의 단조 공정을 통하여 벨트풀리를 제조하는 것을 예시하였지만, 포밍기의 성능 또는 소재의 재질에 따라 1차례의 작용 에 가공 가능한 정도가 달라지는 단조 또는 단조가공의 특성을 감안하여 작업의 회수를 더하거나 줄여서 공정을 완료할 수도 있다. In the present invention, the belt pulley is manufactured through a total of two forging processes, but considering the characteristics of forging or forging in which the degree of workability is changed in one action depending on the performance of the forming machine or the material of the material. The process can be completed by adding or reducing the number of operations.
이상 설명한 바와 같은 본 발명에 의하면 내구성이 뛰어나게 되고 비교적 간단한 공정인 냉간 단조를 통하여 벨트풀리를 제조하므로 공정을 줄이게 되면서 재료의 낭비를 방지할 수도 있게 되는 것으로, 종래의 열간 단조로 제조하거나, 벨트홈부와 로터부 2개로 분리된 것을 용접 후 가공하는 방식으로 벨트풀리를 제조하던 방법에 비하여 간단한 공정과 저렴한 비용으로 자동차용 벨트풀리를 제조할 수 있게 되는 유용한 발명이라 할 수 있다.According to the present invention as described above, because the belt pulley is manufactured through cold forging, which is excellent in durability and relatively simple process, it is possible to prevent waste of materials while reducing the process. Compared to the method of manufacturing a belt pulley by welding and separating the two parts separated from the rotor part, the invention can be said to be a useful invention that can manufacture a belt pulley for automobiles with a simple process and low cost.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020070031648A KR20080088845A (en) | 2007-03-30 | 2007-03-30 | Manufacturing method of belt pulley for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020070031648A KR20080088845A (en) | 2007-03-30 | 2007-03-30 | Manufacturing method of belt pulley for automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR20080088845A true KR20080088845A (en) | 2008-10-06 |
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ID=40150809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020070031648A Ceased KR20080088845A (en) | 2007-03-30 | 2007-03-30 | Manufacturing method of belt pulley for automobile |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR20080088845A (en) |
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2007
- 2007-03-30 KR KR1020070031648A patent/KR20080088845A/en not_active Ceased
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