KR101725504B1 - Manufacturing method of eye joint for connecting of automobile pipe - Google Patents

Manufacturing method of eye joint for connecting of automobile pipe Download PDF

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Publication number
KR101725504B1
KR101725504B1 KR1020160078368A KR20160078368A KR101725504B1 KR 101725504 B1 KR101725504 B1 KR 101725504B1 KR 1020160078368 A KR1020160078368 A KR 1020160078368A KR 20160078368 A KR20160078368 A KR 20160078368A KR 101725504 B1 KR101725504 B1 KR 101725504B1
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South Korea
Prior art keywords
joint
eye joint
welding
eye
cutting
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KR1020160078368A
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Korean (ko)
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이창희
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주식회사 여남테크
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K1/00—Soldering, e.g. brazing, or unsoldering
    • B23K1/0008—Soldering, e.g. brazing, or unsoldering specially adapted for particular articles or work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00—Arc welding or cutting
    • B23K9/16—Arc welding or cutting making use of shielding gas
    • 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
    • B23P13/00—Making metal objects by operations essentially involving machining but not covered by a single other subclass
    • B23P13/02—Making metal objects by operations essentially involving machining but not covered by a single other subclass in which only the machining operations are important
    • 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
    • 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
    • B23P17/00—Metal-working operations, not covered by a single other subclass or another group in this subclass
    • B23P17/02—Single metal-working processes; Machines or apparatus therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
    • F16L33/24—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses with parts screwed directly on or into the hose
    • 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
    • B23P2700/00—Indexing scheme relating to the articles being treated, e.g. manufactured, repaired, assembled, connected or other operations covered in the subgroups
    • B23P2700/50—Other automobile vehicle parts, i.e. manufactured in assembly lines

Abstract

The present invention relates to a method to manufacture an eye joint for connecting various kinds of pipes, such as a fuel pipe, an oil pipe, a coolant pipe, etc. of a vehicle engine. In particular, costs can be reduced through enhancement of productivity and at the same time, eye joint materials can be precisely welded when the eye joint is manufactured, so the eye joint with high quality is provided. To this end, the method comprises: a step of cutting a metal round bar by a constant length through a lathe, chamfering the cut round bar, drilling a fastening hole and a connection hole, and cutting the inside at the same time, cutting a side surface to prepare an eye joint material having a bonding surface; a step of attaching the bonding surfaces of the eye joint material with each other and performing argon welding on a bonded part to acquire a preliminary eye joint having the connected bonding surfaces, and performing second welding with copper again on the preliminary eye joint through a brazing welder to form a copper welding part on an outer surface of an argon welding part; and a step of cutting front and rear surfaces of the second welded preliminary eye joint to standardize the preliminary eye joint and performing third welding on the standardized preliminary eye joint again through the brazing welder to melt the copper welding part formed on the bonding part during the second welding, so as to fill a copper welding material in a fine gap formed between the bonding parts of the eye joint material. Thus, a smooth surface is formed and at the same time, welding strength is improved.

Description

자동차 배관 연결용 아이조인트의 제조방법{MANUFACTURING METHOD OF EYE JOINT FOR CONNECTING OF AUTOMOBILE PIPE}TECHNICAL FIELD [0001] The present invention relates to a method of manufacturing an eye joint for connecting a vehicle piping,

본 발명은 자동차 엔진의 연료파이프나 오일파이프 및 냉각수파이프와 같은 각종 배관연결을 위한 아이조인트(Eye joint)의 제조방법에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing an eye joint for connecting various pipes such as a fuel pipe, an oil pipe and a cooling water pipe of an automobile engine.

일반적으로 자동차의 엔진에는 연료나 오일 및 냉각수 등과 같은 유체의 순환계통이 있는데, 이들 유체는 높은 압력을 가지고 순환하게 되므로 주로 동 등의 금속으로 된 파이프를 통해 유체를 순환시키게 된다.Generally, automotive engines have a circulating system of fluid such as fuel, oil, and cooling water. These fluids circulate with high pressure and circulate the fluid mainly through pipes made of copper or the like.

파이프를 통하여 순환하는 유체는 필터 및 펌프를 통하여 순환하게 되며, 상기 파이프와 필터 및 펌프를 연결해 주는 수단으로서 아이조인트(Eye joint)가 사용된다.The fluid circulating through the pipe is circulated through the filter and the pump, and an eye joint is used as a means for connecting the pipe to the filter and the pump.

통상적으로 아이조인트는 제1아이조인트와 제2아이조인트로 구성되는데, 종래 아이조인트는 사각형의 금속몸체에 두개의 체결공을 뚫고, 상기 체결공 측방향으로 연결공을 뚫고, 상기 체결공 및 연결공을 가공하여 사용하거나, 각각 별도로 두개의 아이조인트를 제작후 사용하여 왔다.Conventionally, the eye joint is constituted by a first eye joint and a second eye joint. Conventionally, the eye joint is formed by drilling two fastening holes into a square metal body, drilling the fastening holes in the direction of the fastening holes, It has been used either by machining the ball or by making two eye joints separately.

상기에서 사각형의 금속몸체에 체결공과 연결공을 뚫고, 가공하는 방법으로 아이조인트를 제작할 경우에는, 가공에 어려움이 있어 생산성이 떨어지게 되므로 제작비용이 상승하게 되며, 또한 별도로 두개의 아이조인트를 분리사용할 경우에는 배관이 엉킬 우려가 있다.In the above case, when the eye joint is manufactured by drilling the fastening holes and the connecting holes in the rectangular metal body, the productivity is lowered due to the difficulty in processing, so that the manufacturing cost is increased, and the two eye joints are separately used If there is a risk of tangling the pipe.

상기한 수단 이외에도 단조로 프레스 제작할 수도 있겠으나 생산성이 낮아 제작비용이 상승하게 되는 등의 단점이 있다.In addition to the above-mentioned means, it is also possible to produce a press by forging, but it has a disadvantage in that productivity is low and manufacturing cost is increased.

자동차의 각종 배관연결용 아이조인트와 관련한 선행기술을 검토하여 보면, 특허 제10-0261958호 "아이조인트와 세경금속관의 연결구조 및 연결방법"(특허문헌 1)과, 특허 제10-0844928호 "아이조인트 및 아이조인트와 배관의 접속구조 및 그 접속방법"(특허문헌 2)과, 공개특허 제10-2010-0039679호 "터보차져용 냉각수 파이프 연결유닛"(특허문헌 3) 등이 제공된바 있다.Patent Document No. 10-0261958 entitled "Connection Structure and Connection Method of Eye Joint and Small-diameter Metal Pipe" (patent document 1) and patent No. 10-0844928 " (Japanese Patent Application Laid-Open No. 2001-0039679) entitled " Coolant Pipe Connection Unit for Turbocharger "(Patent Document 3), etc. have been provided .

상기 특허문헌 1 내지 특허문헌 3에 게재된 아이조인트의 경우, 단일의 아이조인트로 구성된 것이거나, 단조성형방법으로 제작한 것으로서, 본원발명에서 제공하고자 하는 아이조인트의 제조방법과는 차이가 있는 것이었다.In the case of the eye joints disclosed in the above Patent Documents 1 to 3, the eye joint is made of a single eye joint or is manufactured by a forging molding method, which is different from the method of manufacturing an eye joint to be provided by the present invention .

특허 제10-0261958호 "아이조인트와 세경금속관의 연결구조 및 연결방법"Patent No. 10-0261958 "Connection structure and connection method of eye joint and small-diameter metal pipe" 특허 제10-0844928호 "아이조인트 및 아이조인트와 배관의 접속구조 및 그 접속방법"Patent No. 10-0844928 entitled "Connection structure of eye joint and eye joint and pipe, 공개특허 제10-2010-0039679호 "터보차져용 냉각수 파이프 연결유닛"Open No. 10-2010-0039679 entitled "Cooling water pipe connection unit for turbocharger"

본 발명은 자동차 엔진의 연료파이프나 오일파이프 및 냉각수파이프와 같은 각종 배관연결을 위한 아이조인트(Eye joint)의 제조방법에 관한 것으로서, 특히 아이조인트의 제작시 생산성 향상을 통하여 원가를 절감케 함과 동시에, 한쌍의 아이조인트소재의 용접이 정밀하게 이루어질 수 있게 하여 고품질의 아이조인트를 제공하고자 하는 것이다.The present invention relates to a method of manufacturing an eye joint for connecting various pipes such as a fuel pipe, an oil pipe, and a cooling water pipe of an automobile engine, and more particularly, At the same time, a pair of eye joint materials can be precisely welded to provide a high-quality eye joint.

상기 과제를 해결하기 위한 수단으로서, 본 발명은 금속환봉을 선반을 통하여 일정길이 절단한 다음 면취가공하고, 체결공과 연결공을 뚫고, 동시에 내부를 절삭가공하고, 측면을 절삭하여 접합면이 구성되게 한 아이조인트 소재를 준비하고, 상기 아이조인트 소재의 접합면을 서로 밀착시킨 다음 접합부에 알곤용접하여 이들이 연결되게 한 예비아이조인트를 얻고, 상기 예비아이조인트를 다시 브레이징용접기를 통하여 동으로 2차용접하여, 알곤용접부 외면에 다시 동용접부를 구성하고, 2차용접된 예비아이조인트의 앞뒷면을 절삭가공하여 규격화하고, 규격화된 예비아이조인트를 다시 브레이징용접기로 3차용접하여, 2차용접시 접합부에 형성된 동용접부를 녹여 아이조인트 소재의 접합부 사이에 형성된 미세한 틈에 동용접물이 메워지게 하여 표면이 매끈하게 가공되게 함과 동시에 용접견고성이 향상되게 한 것이다.As a means for solving the above problems, the present invention provides a method of manufacturing a metal rod, comprising the steps of cutting a metal round bar through a shelf for a certain length of time, chamfering, drilling the fastening hole and the connection hole, cutting the inside, cutting the side, A joint material of the eye joint material is brought into close contact with each other, and then the joint part is subjected to argon welding to obtain a spare eye joint, and the spare eye joint is again brought into contact with the eye through a brazing welding machine , The argon welded part is formed again on the outer surface of the copper welded part, the front and back surfaces of the secondary welded spare eye joint are machined and standardized, the standardized spare eye joint is contacted with the brazing welder for tertiary use, The welds are melted and the welds are filled in fine gaps formed between the joints of the eye joint material. This process should be smooth and at the same time will have to be improved weld durability.

본 발명은 금속환봉을 선반을 통하여 일정길이 절단한 다음 면취가공하고, 체결공과 연결공을 뚫고, 동시에 내부를 절삭가공하고, 측면을 절삭하여 접합면이 구성되게 한 아이조인트 소재를 준비하고, 상기 아이조인트 소재의 접합면을 서로 밀착시킨 다음 접합부에 알곤용접하여 이들이 연결되게 한 예비아이조인트를 얻고, 상기 예비아이조인트를 다시 브레이징용접기를 통하여 동으로 2차용접하여, 알곤용접부 외면에 다시 동용접부를 구성하고, 2차용접된 예비아이조인트의 앞뒷면을 절삭가공하여 규격화하고, 규격화된 예비아이조인트를 다시 브레이징용접기로 3차용접하여, 2차용접시 접합부에 형성된 동용접부를 녹여 아이조인트 소재의 접합부 사이에 형성된 미세한 틈에 동용접물이 메워지게 하여 표면이 매끈하게 가공되게 함과 동시에 용접견고성이 향상되게 함으로서 아이조인트의 제작시 생산성 향상을 통하여 원가를 절감케 함과 동시에, 아이조인트소재의 용접이 정밀하게 이루어질 수 있게 하여 고품질의 아이조인트를 제공할 수 있게 되는 것이다.According to the present invention, there is provided an eye joint material in which a metal round bar is cut at a predetermined length through a lathe, then chamfered, a through hole and a through hole are drilled, The joint surfaces of the eye joint material are brought into close contact with each other and then argon is welded to the joint portion to obtain a spare eye joint. The spare eye joint is again brought into contact with the secondary joint through a brazing welding machine, And the front and rear surfaces of the secondary welded spare eye joints are cut and processed to standardize and the standardized spare eye joint is touched by the brazing welder for the tertiary use to melt the copper welded portion formed on the secondary plate joint portion, So that the surface of the workpiece is smoothly machined, and at the same time, Kane reduce costs through production improves productivity by improving the robustness make joint child, and at the same time, it is possible to be able to weld the joint creative children can be made accurately provide high quality child joint.

도 1 : 본 발명의 실시를 위하여 환봉을 절단한 상태도
도 2 : 도 1의 절단소재를 가공하여 제조한 아이조인트소재의 분리상태도
도 3 : 도 2의 아이조인트소재를 용접을 위하여 밀착시킨 상태도
도 4 : 도 3의 정면사시도
도 5 : 도 3의 상태에서 1차용접한 상태도
도 6 : 도 5의 정면사시도
도 7 : 도 5의 상태에서 2차용접한 상태도
도 8 : 도 7의 정면사시도
도 9 : 도 7의 상태에서 제1,2아이조인트의 앞뒷면을 절삭가공한 상태도
도 10 : 도 9의 정면사시도
도 11 : 도 9의 상태에서 3차용접한 상태도
도 12 : 도 11의 정면사시도
도 13 : 본 발명의 사용상태 예시도
도 14 : 본 발명의 공정도1 shows a state in which a round bar is cut for the purpose of carrying out the present invention
Fig. 2: Separation state of the eye joint material produced by processing the cutting material shown in Fig. 1
Fig. 3: State in which the eye joint material of Fig. 2 is in close contact for welding
Figure 4: Front view of Figure 3
Fig. 5: state diagram of Fig. 3
Figure 6: Front view of Figure 5
Fig. 7: Diagram of the secondary contact state in the state of Fig.
Figure 8: Front view of Figure 7
9 shows a state in which the front and rear surfaces of the first and second eye joints are cut in the state of Fig. 7
Figure 10: Front view of Figure 9
Fig. 11: State in contact with the tertiary contact in the state of Fig. 9
12: front perspective view of Fig. 11
13: Example of use state of the present invention
Figure 14: Process diagram of the present invention

이하 본 발명의 실시예를 첨부도면에 따라 상세히 설명한다.Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

자동차 엔진작동에는 연료나 오일, 냉각수 등과 같은 유체의 순환이 필수적이고, 상기 유체는 주로 금속파이프를 통하여 엔진과 필터 및 펌프로 연결되며, 상기 금속파이프를 엔진과 필터 및 펌프와 연결하는 수단으로서 아이조인트(Eye joint)가 사용되며, 본 발명은 상기 아이조인트를 간편하고 정밀하게 제작할 수 있는 제조방법에 관한 것이다.In the automobile engine operation, circulation of fluid such as fuel, oil, cooling water and the like is essential, and the fluid is mainly connected to the engine, the filter and the pump through a metal pipe, and as a means for connecting the metal pipe to the engine, An eye joint is used, and the present invention relates to a manufacturing method capable of easily and precisely manufacturing the eye joint.

소재준비공정(Material preparation process ( S1S1 ))

소재준비공정(S1)은 아이조인트소재(20) 제작을 위한 준비공정으로서 원하는 직경의 환봉(40)을 CNC선반에 공급하여 설정된 길이로 절단한 다음 소재(30)를 준비한다.The material preparation step S1 is a preparation step for manufacturing the eye joint material 20, and a round bar 40 having a desired diameter is supplied to the CNC lathe, cut to a predetermined length, and then the material 30 is prepared.

절삭가공공정(Cutting process ( S2S2 ))

절삭가공공정(S2)은 소재준비공정(S1)에서 준비된 소재(30)을 CNC선반과 같은 절삭가공기에 공급하여 소재(30)를 관통하는 체결공(21)과, 체결공(21)과 상통하게 하는 연결공(22)과, 면취부(23)를 형성하고, 동시에 소재(30) 일측은 절삭하여 접합면(24)이 형성된 아이조인트소재(20)를 제작한다.(도 2참조)In the cutting step S2, the material 30 prepared in the material preparing step S1 is supplied to a cutting machine such as a CNC lathe to form a fastening hole 21 passing through the material 30, And at the same time one side of the blank 30 is cut to fabricate an eye joint material 20 having a bonding surface 24 formed thereon (see Fig. 2). (See Fig. 2)

상기 절삭가공공정(S2)에서 소재(30)에 형성되는 체결공(21)이나 연결공(22)의 크기는 아이조인트(10)가 적용되는 차종이나 유체의 종류에 따라 달라지기 때문에 절삭가공시 조정된다.Since the size of the fastening hole 21 or the connecting hole 22 formed in the work 30 in the cutting process S2 varies depending on the type of the vehicle to which the eye joint 10 is applied and the type of the fluid, .

또한 상기 체결공(21)에는 도 13에서와 같이 아이볼트(50)가 끼워져 아이조인트(10)를 기체(도시안됨)에 고정하는 기능을 하며, 연결공(22)에는 유체가 이동하는 금속파이프(52)가 연결된다.13, an eye bolt 50 is inserted into the fastening hole 21 to fix the eye joint 10 to a base body (not shown), and the connection hole 22 is provided with a metal pipe (52) are connected.

1차용접공정(Primary welding process ( S3S3 ))

1차용접공정(S3)은 절삭가공공정(S2)에서 제작된 아이조인트소재(20) 두개를 준비한 다음, 도 2 및 도 3에서와 같이 양측 아이조인트소재(20)의 접합면(24)을 서로 마주보게 밀착시킨 다음, 접합부(25)에 알곤TIG용접하여 알곤용접부(26)가 형성되게 함으로서, 아이조인트소재(20)가 서로 접합된 예비아이조인트(10')를 제작한다.In the primary welding step S3, two eye joint materials 20 manufactured in the cutting process S2 are prepared. Then, as shown in FIGS. 2 and 3, the joint surfaces 24 of the both- And the argon welded portion 26 is formed by argon TIG welding to the joint portion 25 to manufacture the spare eye joint 10 'in which the eye joint material 20 is bonded to each other.

이때 아이조인트소재(20)의 접합부(25)에 형성되는 알곤용접부(26)는 양측 상하2곳 총4곳에 형성되게 하는 것이 바람직하다.At this time, it is preferable that the argon welded portion 26 formed on the joining portion 25 of the eye joint material 20 is formed in four places on the upper and lower sides on both sides.

2차용접공정(Secondary welding process ( S4S4 ))

2차용접공정(S4)은 1차용접공정(S3)에서 제작된 예비아이조인트(10')의 접합부(25), 즉 알곤용접부(26) 외면에 동으로 브레이징용접을 통하여 동용접부(27)가 이중으로 융착되게 하여, 아이조인트소재(20)의 견고한 용접이 이루어지게 한다.The secondary welding step S4 is a step in which the welding part 27 of the spare eye joint 10 'manufactured in the primary welding step S3 is welded to the outer surface of the argon welding part 26 by brazing, So that the eye joint material 20 can be firmly welded.

상기 동용접부(27)는 접합부(25) 전면을 동으로 용접하여 미세한 틈을 메워주는 역할을 겸하게 된다.The copper welding part 27 also functions to weld the entire surface of the joint part 25 to copper to fill a fine gap.

면삭가공공정(Machining process ( S5S5 ))

면삭가공공정(S5)는 2차용접공정(S4)에서 브레이징용접을 통하여 접합부(25)에 동용접부(27)가 형성되게 한 예비아이조인트(10')의 앞뒷면을 절삭가공하여 매끈하게 가공함과 동시에 규격에 맞게 가공하는 것이다.In the surface machining step S5, the front and rear surfaces of the spare eye joint 10 'in which the copper welding part 27 is formed on the joint part 25 through brazing in the secondary welding step S4 are cut and machined And machining it according to the standard.

즉 2차용접된 예비아이조인트(10')를 CNC선반을 통하여 앞면(28)과 뒷면(29)을 절삭하여 표면을 평활하게 가공하고, 동시에 원하는 치수에 맞게 규격화하는 것이며, 이때 앞면(28)과 뒷면(29)이 절삭된 절삭면(36)에는 도 9 및 도 10에서와 같이 양측 아이조인트소재(20)의 접합부(25)가 다시 노출된다.That is, the front and rear surfaces 28 and 29 are cut through the CNC lathe by the secondary welded spare joint 10 ', and the surface is smoothed. At the same time, 9 and 10, the joint portion 25 of the both-eye joint material 20 is exposed again to the cut surface 36 on which the rear surface 29 is cut.

3차용접공정(3rd welding process ( S6S6 ))

3차용접공정(S6)은 면삭가공공정을 통하여 예비아이조인트(10')의 앞뒷면(28)(29)을 절삭가공하는 과정에서 노출된 접합부(25)의 미세한 틈(25')을 메워 절삭면(35)이 평활하게 가공되게 함과 동시에 용접의 견고성을 향상시키기 위한 것이다.The third welding step S6 is a step of filling the fine gap 25 'of the exposed joint part 25 in the process of cutting the front and back surfaces 28 and 29 of the spare eye joint 10' So that the cutting surface 35 is smoothly worked and the robustness of the welding is improved.

즉 면삭가공공정(S5)을 거친 예비아이조인트(10')를 1000~1100℃의 브레이징용접기에 투입하여 서서히 통과시키면 아이조인트소재(20)의 접합부(25)에 융착된 동소재가 용해되어 흘러내려 절삭과정에서 앞뒷면(28)(29)의 접합부(25)에 노출된 미세한 틈(25') 사이로 용해된 동소재가 메워지면서 새로운 동용접부(27')가 형성되므로 접합부(25)의 평활도를 향상시킴과 동시에, 아이조인트소재(20)의 용접견고성을 향상시킨다.That is, when the preliminary eye joint 10 'having been subjected to the surface finishing step (S5) is put into a brazing welding machine at 1000 to 1100 ° C and passed slowly, the copper material fused to the joint portion 25 of the eye joint material 20 is melted and flows A new copper welded portion 27 'is formed by melting the copper material between the minute gaps 25' exposed in the joining portion 25 of the front and back surfaces 28 and 29 in the lower cutting process, And improves the welding robustness of the eye joint material 20.

3차용접이 완료되면 냉각시킴으로서 본 발명에서 제공하고자 하는 아이조인트(10) 제조가 완료된다.When the third welding is completed, the manufacture of the eye joint 10 to be provided in the present invention is completed by cooling.

미설명부호 (51)은 패킹이다.The unexplained reference numeral 51 denotes a packing.

이와 같이 제조된 본 발명의 아이조인트(10)는 도 13에서와 같이 아이조인트(10)의 체결공(21)에 아이볼트(50)를 끼워, 자동차용 배관, 즉 연료나 오일 및 냉각수 등과 같은 유체의 순환을 위한 각종 파이프가 설치되는 부분의 기체에 고정설치한 다음, 측부에 구성된 연결공(22)에 금속파이프(52)를 연결함으로써, 금속파이프(52)와 아이볼트(51)를 통하여 유체가 순환되게 한다는 것은 종래와 다를바 없다.The eye joint 10 of the present invention manufactured as described above is constructed in such a manner that the eye bolt 50 is inserted into the fastening hole 21 of the eye joint 10 as shown in FIG. The metal pipe 52 and the eye bolt 51 are connected to the connection hole 22 formed in the side portion by fixing the metal pipe 52 and the eye bolt 51 Circulation of the fluid is not different from the conventional one.

그러나 본 발명은 아이조인트(10)를 제작함에 있어서, 금속환봉(40)을 절단하여 소재(30)를 얻고, 상기 소재(30)를 절삭가공하여 아이조인트소재(20)를 얻고, 상기 아이조인트소재(20)를 밀착시킨 다음 용접하고, 면삭가공하고, 다시 브레이징용접하는 수단으로 자동차 배관연결용 아이조인트(10)가 제조되게 함으로서, 아이조인트(10) 제작에 따른 생산성을 향상시켜 제작비용을 절감케 할 뿐 아니라, 제품의 정밀성을 높여 고품질의 아이조인트(10)를 제조할 수 있게 된다.However, according to the present invention, in manufacturing the eye joint 10, the metal bar 40 is cut to obtain the material 30, the material 30 is cut to obtain the eye joint material 20, The manufacturing process of the eye joint 10 is improved by manufacturing the eye joint 10 for connection to the automobile pipe by means of welding the material 20 and then welding, It is possible to manufacture a high quality eye joint 10 by increasing the precision of the product.

특히 면삭가공공정(S5)에서 예비아이조인트(10)의 앞뒷면을 면삭가공하고, 면삭공정에서 발생한 미세한 틈(25')을 브레이징용접기를 이용한 3차용접공정(S6)에서 동소재가 메워져 새로운 동용접부(27')가 형성되게 함으로서 아이조인트소재(20)의 접합부(25) 평활도 및 용접견고성을 향상시킬 수 있다.Particularly, the front and back surfaces of the spare eye joint 10 are subjected to surface machining in the step of machining (S5), and fine gaps 25 'generated in the machining step are filled with copper in the third welding step S6 using a brazing welding machine. The flat welded portion 27 'of the joint portion 25 of the eye joint material 20 can be improved in smoothness and welding robustness.

(10)--아이조인트 (20)--아이조인트소재
(21)--체결공 (22)--연결공
(23)--면취부 (24)--접합면
(25)--접합부 (26)--알곤용접부
(27)--동용접부 (28)--앞면
(29)--뒷면 (30)--소재
(36)--절삭면 (40)--환봉(10) - Eye joint (20) - Eye joint material
(21) - fastening hole (22) - connecting hole
(23) - chamfered portion (24) - bonded surface
(25) -Junction (26) -Argon weld
(27) - copper welding (28) - front surface
(29) - Rear (30) - Material
(36) - Cutting surface (40) - Round bar

Claims (2)

자동차 배관 연결용 아이조인트를 제조함에 있어서, 금속환봉(40)을 절단하여 소재(30)를 준비하는 소재준비공정(S1)과, 상기 소재(30)를 절삭가공기에 공급하여 소재(30)를 관통하는 체결공(21)과, 체결공(21)과 상통하게 하는 연결공(22) 및 접합면(24)이 형성되게 하여 아이조인트소재(20)를 준비하는 절삭가공공정(S2)과, 상기 아이조인트소재(20) 두개를 준비한 다음 접합면(24)을 마주보게 밀착시킨 다음 접합부(25)를 용접하여 알곤용접부(26)를 형성하고, 상기 알곤용접부(26)를 통하여 두개의 아이조인트소재(20)가 접합되게 한 예비아이조인트(10')를 제조하는 1차용접공정(S3)과, 1차용접된 예비아이조인트(10')의 접합부(25)에 동으로 브레이징용접하여 동용접부(27)가 접합부(25) 외면에 이중으로 융착되게 하는 2차용접공정(S4)과, 2차용접된 예비아이조인트(10')의 앞면(28)과 뒷면(29)을 절삭하여 절삭면(36)을 형성하면서 치수에 맞게 규격화하는 면삭가공공정(S5)와, 상기 예비아이조인트(10')를 브레이징용접기에 공급하여 면삭가공공정(S5)시 앞뒷면(28)(29)의 접합부(25)에 발생한 미세한 틈(25')에 동소재가 흘러내려 메워지게 한 동용접부(27')가 형성되게 하는 3차용접공정(S6)을 통하여 아이조인트(10)가 제조되게 함을 특징으로 하는 자동차 배관 연결용 아이조인트의 제조방법.A method of manufacturing an eye joint for automobile pipe connection, comprising the steps of: preparing a material (30) by cutting a metal round bar (40); supplying the material (30) (S2) for preparing an eye joint material (20) by forming a through hole (21) passing through the joint hole (22) and a joint surface (24) Two pieces of eye joint material 20 are prepared and then adhered to the joint surface 24 so as to face each other and then the joint portion 25 is welded to form an argon welded portion 26. Through the argon welded portion 26, A primary welding step S3 for manufacturing a spare eye joint 10 'in which the workpiece 20 is joined and brazing welding to the joint part 25 of the primary eye joint 10' A secondary welding step S4 for welding the welding part 27 to the outer surface of the joint part 25 in a double manner and a secondary welding step S4 for welding the secondary welded spare eye joint 10 ' (S5) of cutting the face (28) and the rear face (29) to form a cutting face (36) and standardizing the face to fit the dimensions; and a step of supplying the preliminary eye joint (10 ') to a brazing welding machine (S6) for forming a copper welded portion 27 'to allow the copper material to flow down into the fine gap 25' formed in the joint portion 25 of the front and rear faces 28 And the eye joint 10 is manufactured through the process of manufacturing the eye joint 10. 제1항에 있어서, 절삭가공공정(S2)에서 체결공(21)과 연결공(22) 및 접합면(24)가공과 함께 면취부(23)를 형성하고, 1차용접공정(S3)에서 아이조인트소재(20)의 접합부(25)에 형성되는 알곤용접부(26)는 양측 상하부2곳, 총4곳에 형성되게 함을 특징으로 하는 자동차 배관 연결용 아이조인트의 제조방법.The method according to claim 1, wherein the chamfered portion (23) is formed in the cutting step (S2) together with the joint hole (21), the connecting hole (22) and the joint surface (24) Wherein the argon welded part (26) formed on the joint part (25) of the eye joint material (20) is formed at four places in two places, upper and lower parts of both sides.
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CN112340262A (en) * 2020-11-13 2021-02-09 秦皇岛北辰制冷有限公司 Manufacturing method of energy storage water tank and energy storage water tank
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