KR20030097767A - Compressor piston for automobile air conditioner and fabrication method thereof - Google Patents
Compressor piston for automobile air conditioner and fabrication method thereof Download PDFInfo
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- KR20030097767A KR20030097767A KR1020030088315A KR20030088315A KR20030097767A KR 20030097767 A KR20030097767 A KR 20030097767A KR 1020030088315 A KR1020030088315 A KR 1020030088315A KR 20030088315 A KR20030088315 A KR 20030088315A KR 20030097767 A KR20030097767 A KR 20030097767A
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- bearing
- piston
- air conditioner
- compressor
- bearing installation
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
- F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
- F04B27/0873—Component parts, e.g. sealings; Manufacturing or assembly thereof
- F04B27/0878—Pistons
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- 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
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/02—Stamping using rigid devices or tools
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D19/00—Casting in, on, or around objects which form part of the product
- B22D19/02—Casting in, on, or around objects which form part of the product for making reinforced articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D21/00—Casting non-ferrous metals or metallic compounds so far as their metallurgical properties are of importance for the casting procedure; Selection of compositions therefor
- B22D21/02—Casting exceedingly oxidisable non-ferrous metals, e.g. in inert atmosphere
- B22D21/04—Casting aluminium or magnesium
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/10—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass pistons
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/02—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/32—Cooling devices
- B60H1/3204—Cooling devices using compression
- B60H1/3223—Cooling devices using compression characterised by the arrangement or type of the compressor
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Manufacturing & Machinery (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
Abstract
Description
본 발명은 자동차 에어콘용 압축기의 피스톤에 관한 것으로, 피스톤 몸체는상, 하부의 원통형 피스톤 헤드의 중심부에 베어링 설치부용 수직관통공이 형성되고, 별도로 제작된 베어링 설치부가 상기 수직관통공에 삽입되어 결합됨으로서, 복잡한 단조공정이나 절삭가공 등의 공정을 거치지 않고도 제작이 가능한 자동차 에어콘용 압축기의 피스톤 및 그의 제작방법에 관한 것이다.The present invention relates to a piston of a compressor for an air conditioner for automobiles, wherein a piston body has upper and lower vertical through holes for a bearing mounting portion formed at a central portion of a cylindrical piston head, and a separately prepared bearing installation portion is inserted into and coupled to the vertical through holes. The present invention relates to a piston for an automobile air conditioner compressor and a method of manufacturing the same, which can be manufactured without undergoing a complicated forging process or a cutting process.
종래의 자동차 에어콘용 압축기의 피스톤은 단조공정을 통하여 상부와 하부의 원통형 피스톤 헤드와 그 단면이 원호모양인 중간지지부 및 베어링 설치부를 일체로 단조성형하여 피스톤의 대략적인 외형을 제작하고, 원통형 헤드의 단부와 외주면을 절삭가공 또는 연삭가공한 후, 베어링 설치부의 중심부에 베어링 수용홈을 절삭가공하고, 열처리하여 제작하는 것이 일반적인 데, 단조로 성형된 피스톤의 대략적인 외형을 절삭가공 또는 연상가공하는 공정상에 있어서 대량생산을 위한 자동화공정이 어려운 단점이 있으며, 특히 일체로 성형된 베어링 설치부에 베어링 수용홈이 형성되는 피스톤의 구조적 특성때문에, 베어링을 수용홈에 안정적으로 고정하기 위하여 수용홈의 끝단부를 절곡하는 것과 같은 후공정이 이루어지기 어렵다. 그러므로 캠과 함께 조립하는 과정에서 베어링 수용홈에 수용된 베어링이 쉽게 이탈되어 조립에 상당한 주의를 필요로 하는 문제점이 있다.The piston of the conventional compressor for a car air conditioner is integrally formed by forging integrally the upper and lower cylindrical piston heads and the arcuate intermediate supporting part and bearing installation part through a forging process to produce an outline of the piston. After cutting or grinding the end and the outer circumferential surface, the bearing accommodation groove is generally cut and heat-treated in the center of the bearing installation portion. The process of cutting or associating the rough outline of the forged piston There is a disadvantage in that the automation process for mass production is difficult in the phase, and in particular, due to the structural characteristics of the piston in which the bearing accommodation groove is formed in the integrally formed bearing installation portion, the end of the accommodation groove for stably fixing the bearing to the accommodation groove. Post-processing, such as bending of wealth, is difficult to achieve. Therefore, there is a problem in that the bearing accommodated in the bearing receiving groove is easily detached in the process of assembling with the cam, requiring considerable attention for assembly.
또한, 종래의 베어링 수용홈에 수용된 베어링은 반구형태로서, 볼록한 반구면은 수용홈에 단순히 삽입되어 구름운동하고, 편평한 원반면은 캠에 접촉하여 미끄럼운동하는 바, 베어링의 원반면에 내마모성 물질로 코팅하는 과정이 필요하므로 일반적으로 생상되는 베어링이 아니라 특별히 별도 생산된 베어링을 사용해야 하는 문제점이 있다.In addition, the bearing accommodated in the conventional bearing receiving groove is a hemispherical shape, the convex hemispherical surface is simply inserted into the receiving groove rolling motion, and the flat disk surface is in contact with the cam sliding, bar wear resistance material on the disk surface of the bearing Since the coating process is required, there is a problem in that a bearing produced in particular is used instead of a bearing generally produced.
따라서, 본 발명은 상기와 같은 문제점을 해결하여 비교적 대량생산이 용이한 제조공법과 더불어 제조단가의 절감을 시도하면서도, 제품의 성능이나 기능적인 측면에서는 기존의 제품보다 오히려 우수한 기능을 갖추는 자동차 에어콘용 압축기의 피스톤을 제공함에 그 목적이 있다.Therefore, the present invention solves the above problems, while attempting to reduce the manufacturing cost with a manufacturing method that is relatively easy to mass production, in terms of product performance or functionality, rather than conventional products for air conditioners for automobiles The purpose is to provide a piston of the compressor.
도 1은 일반적인 자동차 에어콘용 압축기의 개략도.1 is a schematic diagram of a typical automotive air conditioner compressor.
도 2는 본 발명에 의한 피스톤의 사시도.2 is a perspective view of a piston according to the present invention;
도 3은 본 발명에 의한 피스톤의 분해사시도.Figure 3 is an exploded perspective view of the piston according to the present invention.
도 4는 본 발명에 의한 베어링 설치부와 베어링의 결합 단면 사시도.Figure 4 is a perspective view of the coupling section of the bearing mounting portion and the bearing according to the present invention.
도 5는 본 발명에 의한 보강판의 사시도.5 is a perspective view of the reinforcing plate according to the present invention.
도 6은 본 발명에 의한 보강판의 중간부 A-A선 단면도.6 is a cross-sectional view taken along the line A-A of the middle of the reinforcing plate according to the present invention.
〈도면의 주요부분에 대한 부호의 설명〉<Explanation of symbols for main parts of drawing>
10 : 피스톤 몸체 20 : 압축기10: piston body 20: compressor
30 : 베어링 설치부 40 : 볼 베어링30: bearing mounting portion 40: ball bearing
50 : 수직관통공 60 : 보강판50: vertical through hole 60: reinforcement plate
70 : 베어링 수용홈 80 : 홀70: bearing receiving groove 80: hole
90 : 힘살부(BEAD)90: BEAD
본 발명은 자동차 에어콘용 압축기의 피스톤 및 그의 제작방법에 관한 것으로, 이의 구성은 다음과 같다.The present invention relates to a piston of an automobile air conditioner compressor and a method of manufacturing the same, the configuration of which is as follows.
상, 하부의 원통형 피스톤 헤드와 단면이 원호 모양으로 상부와 하부의 피스톤 헤드를 일측에서 지지하는 중간지지부가 일체로 구성된 피스톤 몸체와, 원통형 상, 하부의 피스톤 헤드의 중심부에 각각 서로 마주보게 대칭형으로 구성된 2개의 베어링 설치부와, 상기 베어링 설치부의 단면의 중심부에 형성된 베어링 수용홈에 상비설치된 베어링 등으로 구성된 자동차 에어콘용 압축기의 피스톤에 있어서, 상기 상, 하부의 피스톤 헤드의 중심부에 베어링 설치부용 수직관통공이 형성되고, 별도로 제작된 베어링 설치부가 상기 수직관통공에 삽입되어 결합된다.The upper and lower cylindrical piston head and the piston body composed of an integrated intermediate support portion for supporting the upper and lower piston head on one side in an arc shape, and symmetrically facing each other at the center of the cylindrical upper and lower piston heads, respectively. In the piston of a compressor for an automobile air conditioner comprising two bearing mounting portions configured and bearings provided in a bearing accommodation groove formed at the center of the end face of the bearing mounting portion, the piston for bearing installation portion is vertically located at the center of the upper and lower piston heads. A through hole is formed, and a bearing installation part manufactured separately is inserted into and coupled to the vertical through hole.
상기 베어링 설치부는 일단부에 베어링 수용홈이 형성되되, 기존의 반구형의 베어링의 사용도 가능하나, 본 발명에서는 보다 바람직하고 그 제작이 용이한 볼 베어링이 사용되되, 상기 수용홈에 볼 베어링이 삽입된 후 끝단부가 절곡되어 볼 베어링이 안정적으로 수용되고, 이 볼 베어링이 캠에 접촉하여 구름운동하게 된다.The bearing installation portion is formed in one end of the bearing receiving groove, it is also possible to use the existing hemispherical bearing, but in the present invention more preferred and easy to manufacture the ball bearing is used, the ball bearing is inserted into the receiving groove After the end is bent and the ball bearing is stably received, the ball bearing comes into contact with the cam and rolls.
상기 피스톤 몸체는 알루미늄 재질로서, 다이케스팅(Die Casting)기법으로제작하는데, 상기 다이케스팅(Die Casting)기법은 필요한 주조형상에 완전히 일치하도록 정확하게 기계가공된 강제의 금형에 용융금속을 주입하여 금형과 똑같은 주물을 얻는 정밀주조기법이며, 치수가 정확하므로 다듬질할 필요가 없고, 기계적 성질이 우수하며, 대량생산이 가능한 장점을 지니고 있는 관용의 기술이다.The piston body is made of aluminum and manufactured by die casting technique. The die casting technique injects molten metal into a precisely machined forced mold to completely match the required casting shape. It is a precision casting technique that obtains the precise dimension, so it does not need to be trimmed, has excellent mechanical properties, and has the advantage of being able to mass-produce.
한편, 상기 피스톤 몸체의 원통형 상, 하부의 피스톤 헤드에 베어링 설치부용 수직관통공을 형성한다. 이 수직관통공은 드릴을 사용하여 후공정으로 뚫는 것이 바람직하지만 다이 케스팅으로 피스톤 몸체를 성형할 때 형성하여도 무관하다.On the other hand, the cylindrical body of the piston body, to form a vertical through-hole for the bearing installation portion in the lower piston head. This vertical through hole is preferably drilled in a post process using a drill, but may be formed when forming the piston body by die casting.
또한 상기 베어링 설치부는 알루미늄봉을 절삭가공하여 제작하되 수직관통공의 내경보다 조금 크게 원통형으로 제작하여 수직관통공에 억지끼위맞춤식으로 결합되는 것이 바람직하며, 일단부의 중심부에는 대략 반구형의 볼 베어링 수용홈이 형성하고, 이 수용홈에 볼 베어링을 삽입한 후 끝단부를 절곡하여 일부만 노출된 상태로 볼 베어링을 안정적으로 수용하되, 결합 상태에서 볼 베어링이 캠에 접촉하여 구름운동이 가능하게 수용된다.In addition, the bearing mounting portion is manufactured by cutting the aluminum rod, but a cylindrical shape slightly larger than the inner diameter of the vertical through hole is preferably coupled to the vertical through hole by fitting fit, the center of one end of the ball bearing receiving groove of the approximately hemispherical shape The ball bearing is inserted into the receiving groove, and the end of the ball bearing is bent to stably receive the ball bearing in a partially exposed state, but the ball bearing contacts the cam in a coupled state to accommodate the rolling motion.
상기 피스톤 몸체를 알루미늄 다이 케스팅(Die Casting)으로 제작할 때, 금형 틀 내부에 보강판을 개재함으로써, 단가가 보다 저렴한 저급의 알루미늄을 사용할지라도, 기존의 고가의 고급 알루미늄을 단조성형한 제품과 동일한 강도 이상이 되도록 제작할 수 있다. 상기 보강판은 철로된 강판을 프레스 가공하여 제작하되, 알루미늄과의 결합을 더욱 견고히 하기 위하여 다수 개의 홀이 적정부위에 형성되고, 중간부 및 양 측면에는 다수 개의 힘살부(BEAD)가 구성될 수 있다.When the piston body is manufactured by aluminum die casting, the reinforcement plate is interposed inside the mold frame, so that even if a lower cost aluminum is used, the same strength as that of the existing high-quality aluminum forged product It can manufacture so that it may become an abnormality. The reinforcing plate is manufactured by pressing a steel sheet made of iron, but a plurality of holes are formed at appropriate portions in order to further solidify the bonding with aluminum, and a plurality of BEADs may be formed at the middle and both sides. have.
본 발명을 첨부도면에 의하여 상세히 설명하면 다음과 같다.The present invention will be described in detail with reference to the accompanying drawings.
도 1은 종래의 자동차 에어콘용 압축기의 개략도로서, 피스톤의 몸체와 베어링 설치부가 단조공정을 통하여 일체로 제작되며, 절삭공정과 연마공정을 통하여 정확한 치수의 외형 및 베어링 수용홈이 형성되어지므로, 그 제조공정이 매우 복잡할 뿐만 아니라, 제조비용에 있어서도 많은 공정을 거쳐 제작되므로 과다한 비용이 소모된다. 또한, 캠에 접촉하는 베어링의 형상이 반구모양으로 제작되어, 피스톤 몸체에 고정설치되는 것이 아니라, 반구모양의 베어링 수용홈에 단순히 삽입되는 형태로 설치되어, 캠과 함께 조립할 때 쉽게 이탈됨으로 조립이 어렵다.1 is a schematic view of a conventional automobile air conditioner compressor, the body of the piston and the bearing mounting portion is integrally manufactured through the forging process, the outer shape and bearing receiving grooves of the correct dimensions are formed through the cutting process and the polishing process, Not only is the manufacturing process very complicated, but also the manufacturing cost is excessively consumed because it is manufactured through many processes. In addition, the bearing contacting the cam is made in a hemispherical shape, not fixed to the piston body, but simply inserted into the hemispherical bearing receiving groove, so that the assembly is easily detached when assembled with the cam. it's difficult.
도 2는 본 발명에 의한 피스톤의 사시도로서, 피스톤 몸체와 베어링 설치부와 볼 베어링으로 구성된다. 피스톤 몸체는 중심부에 베어링 설치부용 수직관통공이 형성된 원통형 상부 헤드와 하부 헤드, 그 단면이 원호모양인 중간지지부로 구성된다. 상기 베어링 설치부는 일단부의 중심부에 베어링 수용홈이 형성된 원통형이다. 또한, 베어링 수용홈이 형성된 일단부의 반대편 단부에는 플랜지형 단이 형성되고, 상기 베어링 설치부용 수직관통공도 베어링 설치부의 플랜지형 단이 삽입되는 단이진 관통공으로 성형되는 것이 바람직한 데, 이는 정확하게 삽입하여 결합하는 것이 가능하기 때문이다.Figure 2 is a perspective view of a piston according to the present invention, consisting of a piston body, a bearing mounting portion and a ball bearing. The piston body is composed of a cylindrical upper head and a lower head having a vertical through hole for a bearing installation portion in the center thereof, and an intermediate support portion having an arc cross section. The bearing mounting portion has a cylindrical shape in which a bearing accommodation groove is formed at the center of one end portion. In addition, a flange type end is formed at the opposite end of the one end where the bearing receiving groove is formed, and the vertical through hole for the bearing installation part is preferably formed as a stepped through hole into which the flange type end of the bearing installation part is inserted. Because it is possible.
즉, 상기 피스톤 몸체는 상, 하부의 원통형 피스톤 헤드의 중심부에 베어링 설치부 조립용 수직관통공이 형성되되 상, 하부의 피스톤 헤드는 일측에 단면이 원호 모양인 지지부에 의하여 고정되고 지지되며, 별도로 제작된 베어링 설치부가 상기 수직관통공에 억지끼워 맞춤식으로 삽입되어 결합되어진다.That is, the piston body is a vertical through-hole for assembling the bearing installation portion is formed in the center of the upper, lower cylindrical piston head, the upper, lower piston head is fixed and supported by an arc-shaped support portion on one side, manufactured separately The bearing installation portion is inserted into the vertical through-hole and is customarily inserted and combined.
도 3은 본 발명에 의한 피스톤의 분해 사시도로서, 볼 베어링을 베어링 설치부의 베어링 수용홈에 삽입한 후, 베어링 수용홈의 원형의 끝단부를 펀치 등으로 절곡하여 볼 베어링을 안정적으로 수용한 후, 상기 피스톤 몸체부에 형성되어있는 수직관통공에 억지끼워맞춤식으로 베어링 설치부를 삽입하여 결합한다.3 is an exploded perspective view of a piston according to the present invention, after inserting a ball bearing into a bearing accommodation groove of a bearing installation portion, bending the circular end of the bearing accommodation groove with a punch or the like to stably receive the ball bearing, and then The bearing mounting part is inserted into the vertical through-hole formed in the piston body part and fits.
도 4는 본 발명에 의한 베어링 설치부와 베어링의 결합 단면 사시도로서, 베어링 설치부는 베어링과 결합되는 부위에 반구형태의 베어링 수용홈을 구비하고 있는 바, 상기 베어링을 상기 베어링 수용홈에 위치한 후, 상기 베어링 설치부의 끝단부를 펀치 등으로 절곡하여, 베어링을 안정적으로 수용하게 된다.4 is a perspective view illustrating a coupling cross section of the bearing mounting portion and the bearing according to the present invention, wherein the bearing mounting portion has a hemispherical bearing accommodation groove at a portion engaged with the bearing, and after the bearing is placed in the bearing accommodation groove, The end of the bearing installation portion is bent with a punch or the like to stably receive the bearing.
도 5는 본 발명에 의한 보강판의 사시도로서, 상기 피스톤 몸체를 알루미늄 다이 케스팅(Die Casting)으로 제작할 때, 금형 틀 내부에 철재 보강판을 개재하여 다이 케스팅(Die Casting)하는 바, 기존의 자동차 에어콘용 압축기의 피스톤 전체를 단조로 성형하는 제품과 동일한 강도 이상으로 제작할 수 있음은 물론이고, 비교적 가격이 저렴한 적급의 알루미늄을 사용할 수 있다. 또한, 알루미늄과의 결합을 더욱 견고히 하기 위하여 다수 개의 홀이 적정위치에 형성되고, 중간부 및 양 측면에는 다수 개의 힘살부(BEAD)를 형성할 수 있다.5 is a perspective view of a reinforcing plate according to the present invention, when the piston body is made of aluminum die casting (Die Casting), the die casting through the steel reinforcing plate inside the mold frame (Die Casting), the conventional automobile Of course, the whole piston of the air-conditioning compressor can be manufactured with the same strength or higher as a product forged by molding, and a suitable aluminum can be used which is relatively inexpensive. In addition, a plurality of holes may be formed at appropriate positions in order to more firmly bond with aluminum, and a plurality of BEADs may be formed at the middle and both sides.
도 6은 본 발명에 의한 보강판의 중간부 A-A선 단면도이다.6 is a cross-sectional view taken along a line A-A of the reinforcing plate according to the present invention.
즉, 본 발명은 상부와 하부의 피스톤 헤드는 원통형이고 중간지지부는 그 단면이 원호 모양인 피스톤 몸체와, 상기 상, 하부의 피스톤 헤드의 중심부에 각각 서로 마주보게 구성된 2개의 베어링 설치부와, 상기 베어링 설치부의 단부의 중심부에 형성된 베어링 수용홈에 삽입설치된 베어링으로 구성된 자동차 에어콘용 압축기의 피스톤에 있어서, 상기 피스톤 몸체는 상, 하부의 피스톤헤드의 중심부에 베어링 설치부용 수직관통공이 형성되고, 별도로 제작된 베어링 설치부가 상기 수직관통공에 억지끼워맞춤식으로 삽입되어 결합된 것을 특징으로 하는 자동차 에어콘용 압축기의 피스톤이다.That is, the present invention, the upper and lower piston head is cylindrical and the intermediate support portion is a piston body having an arcuate cross section, two bearing mounting portions configured to face each other at the center of the upper and lower piston head, respectively, In the piston of the compressor for an automobile air conditioner comprising a bearing inserted into a bearing accommodation groove formed in the center of the end of the bearing installation portion, the piston body is formed in the center of the piston head of the upper, lower, the vertical through hole for the bearing installation portion is formed separately It is a piston of the compressor for a car air conditioner, characterized in that the bearing installation portion is inserted into the vertical through-hole fit by fitting.
상기 별도로 제작된 베어링 설치부는 일단부의 중심부에 볼 베어링 수용홈이 형성되고, 상기 수용홈에 볼 베어링이 삽입된 후, 끝단부가 절곡되어 볼 베어링이 안정적으로 수용되며, 상기 볼 베어링은 캠에 접촉하여 구름 운동한다.The separately manufactured bearing installation portion has a ball bearing accommodation groove formed at the center of one end portion, and after the ball bearing is inserted into the accommodation groove, the end portion is bent to stably receive the ball bearing, and the ball bearing contacts the cam. Cloud movement.
또한, 본 발명은 상부와 하부의 피스톤 헤드는 원통형이고 중간지지부는 그 단면이 원호 모양인 피스톤 몸체와, 상기 상, 하부의 피스톤 헤드의 중심부에 각각 서로 마주보게 구성된 2개의 베어링 설치부와, 상기 베어링 설치부의 단부의 중심부에 형성된 베어링 수용홈에 삽입설치된 베어링으로 구성된 자동차 에어콘용 압축기의 피스톤에 있어서, 상기 피스톤 몸체는 알루미늄으로 다이 케스팅하여 제작하되, 상, 하부의 피스톤 헤드의 중심부에 베어링 설치부용 수직관통공을 형성하고, 상기 베어링 설치부는 알루미늄봉을 절삭가공하여 제작하여, 상기 수직관통공에 베어링 설치부를 억지끼워맞춤식으로 삽입하여 결합하는 것을 특징으로 하는 자동차 에어콘용 압축기의 피스톤의 제작방법이다.In addition, the present invention is the upper and lower piston head is cylindrical and the intermediate support portion is a piston body having an arc-shaped cross section, two bearing mounting portions configured to face each other at the center of the upper and lower piston head, respectively, In the piston of the compressor for a car air conditioner consisting of a bearing inserted into a bearing receiving groove formed in the center of the end of the bearing installation portion, the piston body is produced by die casting of aluminum, the bearing installation portion in the center of the upper and lower piston head Forming a vertical through hole, the bearing mounting portion is produced by cutting the aluminum rod, the manufacturing method of the piston of the compressor for the air conditioner of the automobile, characterized in that by inserting and inserting the bearing mounting portion into the vertical through hole by fitting. .
상기 베어링 설치부는 일단부의 중심부에 볼 베어링 수용홈을 절삭하여 형성하고, 상기 수용홈에 볼 베어링을 삽입한 후 끝단부를 절곡하여 볼 베어링을 안정적으로 수용하여 이탈을 방지하되, 결합 상태에서 볼 베어링이 캠에 접촉하여 구름운동이 가능하게 수용한다.The bearing installation part is formed by cutting the ball bearing receiving groove in the center of one end, and inserting the ball bearing into the receiving groove and bending the end to stably receive the ball bearing to prevent the deviation, but the ball bearing in the coupled state Contact the cam to accommodate the rolling motion.
상기 피스톤 몸체를 알루미늄 다이 케스팅으로 제작할 때, 금형 틀 내부에보강판을 개재하여 알루미늄과 함께 다이 케스팅할 수 있다.When the piston body is manufactured by aluminum die casting, the die may be cast together with aluminum through a reinforcing plate inside the mold die.
상기 보강판은 강판을 프레스 공정을 통하여 제작하되 다수개의 관통된 홀과 힘살부(BEAD)를 형성하여, 다이 케스팅 시 보강판을 알루미늄 내부에 보다 확실하게 결합하고 피스톤의 강도를 높일 수 있다.The reinforcement plate is manufactured through a pressing process to form a plurality of through holes and the BEAD, it is possible to more reliably couple the reinforcement plate inside the aluminum during die casting and increase the strength of the piston.
상기와 같이 구성되는 본 발명의 자동차 에어콘용 압축기의 피스톤은, 피스톤 몸체를 다이 케스팅으로 제작하고, 별도로 알루미늄봉을 절삭가공하여 베어링 설치부를 제작하여 조립함으로써, 그 기능은 종래의 피스톤보다 우수하면서도, 제작비용이 감소하는 것은 물론이고, 부품별로 생산이 가능하므로 대량생산까지도 가능할 뿐만아니라, 특히 베어링이 수용홈에 안정적으로 수용됨으로 조립하기가 용이하다.The piston of the compressor for an automobile air conditioner of the present invention configured as described above, by manufacturing the piston body by die casting, by separately cutting the aluminum rod to produce a bearing mounting portion and assembling, while its function is superior to the conventional piston, Not only is the manufacturing cost reduced, but it is also possible to produce parts by mass, and not only mass production is possible, but also it is easy to assemble because the bearing is stably accommodated in the receiving groove.
Claims (6)
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| Application Number | Priority Date | Filing Date | Title |
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| KR1020030088315A KR20030097767A (en) | 2003-12-03 | 2003-12-03 | Compressor piston for automobile air conditioner and fabrication method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| KR1020030088315A KR20030097767A (en) | 2003-12-03 | 2003-12-03 | Compressor piston for automobile air conditioner and fabrication method thereof |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57153778U (en) * | 1981-03-24 | 1982-09-27 | ||
| JPH01312270A (en) * | 1988-02-18 | 1989-12-18 | Sanyo Electric Co Ltd | Manufacture of piston |
| JPH02274340A (en) * | 1989-04-13 | 1990-11-08 | Komatsu Ltd | Method for molding hollow spherical body |
| KR920004667A (en) * | 1989-02-10 | 1992-03-27 | 원본미기재 | Stable water-soluble polymer dispersion, a method for making the same, a coating color composition comprising the dispersion, a method of coating the composition on paper and the coated paper |
| JPH0599146A (en) * | 1991-10-07 | 1993-04-20 | Toyota Autom Loom Works Ltd | Piston for fluid machine and manufacture thereof |
| KR20020085145A (en) * | 2001-05-04 | 2002-11-16 | 황상석 | cookware and method for manufacturing the cookware |
| KR20020088844A (en) * | 2001-05-21 | 2002-11-29 | 정순조 | cookware and method for manufacturing the cookware |
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2003
- 2003-12-03 KR KR1020030088315A patent/KR20030097767A/en not_active Application Discontinuation
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57153778U (en) * | 1981-03-24 | 1982-09-27 | ||
| JPH01312270A (en) * | 1988-02-18 | 1989-12-18 | Sanyo Electric Co Ltd | Manufacture of piston |
| KR920004667A (en) * | 1989-02-10 | 1992-03-27 | 원본미기재 | Stable water-soluble polymer dispersion, a method for making the same, a coating color composition comprising the dispersion, a method of coating the composition on paper and the coated paper |
| JPH02274340A (en) * | 1989-04-13 | 1990-11-08 | Komatsu Ltd | Method for molding hollow spherical body |
| JPH0599146A (en) * | 1991-10-07 | 1993-04-20 | Toyota Autom Loom Works Ltd | Piston for fluid machine and manufacture thereof |
| KR20020085145A (en) * | 2001-05-04 | 2002-11-16 | 황상석 | cookware and method for manufacturing the cookware |
| KR20020088844A (en) * | 2001-05-21 | 2002-11-29 | 정순조 | cookware and method for manufacturing the cookware |
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