KR101092036B1 - Expansion device for aluminium pipe - Google Patents

Expansion device for aluminium pipe Download PDF

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Publication number
KR101092036B1
KR101092036B1 KR1020110033711A KR20110033711A KR101092036B1 KR 101092036 B1 KR101092036 B1 KR 101092036B1 KR 1020110033711 A KR1020110033711 A KR 1020110033711A KR 20110033711 A KR20110033711 A KR 20110033711A KR 101092036 B1 KR101092036 B1 KR 101092036B1
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KR
South Korea
Prior art keywords
expansion
expansion member
refrigerant pipe
aluminum
pipe
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KR1020110033711A
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Korean (ko)
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박진식
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박진식
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Priority to KR1020110033711A priority Critical patent/KR101092036B1/en
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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
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/08—Tube expanders
    • 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
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/08—Tube expanders
    • B21D39/20—Tube expanders with mandrels, e.g. expandable
    • 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
    • B21D41/00—Application of procedures in order to alter the diameter of tube ends
    • B21D41/02—Enlarging
    • 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
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/02—Advancing work in relation to the stroke of the die or tool
    • 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
    • B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
    • B21D53/022—Making the fins

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Heat-Exchange And Heat-Transfer (AREA)

Abstract

PURPOSE: An expansion device for an aluminum pipe is provided to facilitate the expansion of an aluminum pipe and thereby improve quality. CONSTITUTION: An expansion device for an aluminum pipe comprises a cooling fin(20) formed with a pair of through holes in which an aluminum coolant pipe is inserted, an expansion member(30), and the coolant pipe(10). The expansion member is formed with an expansion part on the leading end thereof and inserted into the coolant pipe to expand the inner and outer diameters of the coolant pipe so that the cooling fin is coupled with the coolant pipe. The coolant pipe is formed horizontal to be inserted into the through holes at the same time and bent on the backend. The expansion member is coupled to a moving block and retracted after expansion of the coolant pipe.

Description

알루미늄관의 확장장치{Expansion device for aluminium pipe}Expansion device for aluminum pipe

본 발명은 알루미늄으로 이루어진 열교환기용 냉매관의 지름을 확장하는 장치에 관한 것으로, 더욱 상세하게는 공정을 단순화하여 알루미늄관의 확장작업을 더욱 용이하게 함으로써 품질을 향상시키고 대량생산에 적합한 알루미늄관의 확장장치에 관한 것이다.
The present invention relates to an apparatus for expanding the diameter of a refrigerant tube for heat exchanger made of aluminum, and more particularly, to simplify the process to facilitate the expansion of the aluminum tube to improve the quality and to expand the aluminum tube suitable for mass production. Relates to a device.

일반적으로 열교환기는 냉각핀을 일정 간격으로 수납하는 핀지그와, 상기 핀지그에 수납되어 있는 냉각핀에 알루미늄 재질의 냉매관을 끼워 결합하는 냉매관 삽입장치와, 상기 냉각핀에 끼워 결합된 냉매관을 확장시키는 확장장치로 구성된 냉매관 조립장치에 의하여 제조하였다.
In general, a heat exchanger includes a pin jig for accommodating cooling fins at a predetermined interval, a refrigerant pipe inserting device for fitting an aluminum refrigerant pipe to the cooling fins accommodated in the pin jig, and a refrigerant pipe inserted into the cooling fins. It was manufactured by a refrigerant pipe assembly device consisting of an expansion device to expand the.

도 1은 냉매관(10)의 확장과정을 개략적으로 표현한 것으로서, 지그에 간격을 이루며 정렬된 복수의 냉각핀(20)의 중앙부에는 확대도에서와 같은 한 쌍의 관통공(21)이 형성되어 있고, 상기 관통공(21)에는 한 쌍의 냉매관(10)이 삽입되어 있다.1 is a schematic representation of the expansion process of the refrigerant pipe 10, a pair of through-holes 21 are formed in the central portion of the plurality of cooling fins 20 arranged at intervals on the jig as shown in an enlarged view. The through hole 21 has a pair of refrigerant pipes 10 inserted therein.

상기 냉매관(10)의 지름은 삽입이 용이하도록 관통공(21)의 지름보다 작게 형성되어 있다. 이때, 이러한 냉매관(10)의 내측으로 확장부(31)가 선단에 형성된 확장부재(30)가 빠르게 통과할 수 있도록 를 와이어를 이용해 당김으로써 냉매관(10)의 지름을 확장하게 되며, 이로 인해 냉매관(10)과 냉각핀(20)이 견고하게 결합된다. The diameter of the refrigerant pipe 10 is formed smaller than the diameter of the through hole 21 to facilitate insertion. At this time, the diameter of the refrigerant pipe 10 is expanded by pulling a wire using the wire so that the expansion member 30 formed at the tip of the expansion part 31 can be quickly passed into the refrigerant pipe 10. Due to the refrigerant pipe 10 and the cooling fins 20 is firmly coupled.

그러나 이러한 종래의 확장방식은 확장부재(30)가 냉매관(10)의 내측을 전면에서 후면으로 관통하여 이동하기 때문에 이동한 확장부재(30)를 회수하기 위하여 다시 원위치로 이송해야 하는 불편함이 있었다.
However, this conventional expansion method is inconvenient to move back to the original position to recover the expanded expansion member 30 because the expansion member 30 moves through the inside of the refrigerant pipe 10 from the front to the rear. there was.

한편, 이렇게 구성된 열교환기는 도 2에서 도시한 바와 같이 적당한 간격으로 절곡하여 적층구조를 이루게 되는데, 일측의 냉매관(10)으로 투입된 냉매는 순환을 거쳐 타측의 냉매관으로 배출된다.On the other hand, the heat exchanger configured as described above is bent at an appropriate interval to form a laminated structure as shown in Figure 2, the refrigerant introduced into the refrigerant pipe 10 on one side is discharged to the other refrigerant pipe through the circulation.

그러나 냉매가 순환하기 위해서는 분리된 상측의 냉매관(10)을 서로 연결해야 하는데, 이를 위해 도 3에서 도시한 바와 같이 절곡을 한 후 용접을 해야하는 공정이 추가되어 생산비가 증가하는 문제점이 있었다. 또한, 용접부위에 누설불량이 자주 발생하여 품질이 저하되고, 이로 인해 열교환기에 치명적인 결함이 발생되는 경우가 빈번하였다.
However, in order for the refrigerant to circulate, the separated upper refrigerant pipes 10 must be connected to each other. For this, there is a problem in that the production cost is increased by adding a process of welding after bending. In addition, leakage defects frequently occur in the welded portion, which causes a deterioration in quality, which in turn causes a fatal defect in the heat exchanger.

본 발명은 상기와 같은 문제점을 해결하기 위한 것으로, 확장부재가 자동으로 복귀되어 생산성이 향상되고, 냉매관을 용접할 필요가 없어 대량생산이 가능할 뿐만이 아니라 용접으로 인한 누설의 결함을 근본적으로 해소할 수 있는 알루미늄관의 확장장치를 제공함에 그 목적이 있다.
The present invention is to solve the above problems, the expansion member is automatically returned to improve the productivity, there is no need to weld the refrigerant pipe, mass production is possible, as well as fundamentally eliminate the defects of leakage due to welding It is an object of the present invention to provide a device for expanding an aluminum tube.

본 발명에 의한 알루미늄관의 확장장치는 한 쌍의 관통공이 형성된 복수의 냉각핀이 일렬로 정렬되고, 상기 관통공에는 알루미늄 재질의 냉매관이 삽입되며, 상기 냉매관의 내측에는 선단에 확장부가 형성된 확장부재가 삽입되어 냉매관의 내·외측 지름을 확장시킴으로써 냉각핀과 냉매관을 결합시키는 알루미늄관의 확장장치에 있어서, 상기 냉매관은 한 쌍의 관통공에 동시에 삽입될 수 있도록 평행을 이루며 후단이 절곡되고, 상기 확장부재는 냉매관을 확장한 후 복귀할 수 있도록 전·후로 이동할 수 있게 구성된 이동블록에 결합된 것을 그 기술적 특징으로 한다.
In the apparatus for expanding an aluminum tube according to the present invention, a plurality of cooling fins having a pair of through holes are aligned in a line, and the through holes are inserted with an aluminum refrigerant tube, and an extension portion is formed at a tip of the inside of the refrigerant tube. In the expansion device of the aluminum tube is coupled to the cooling fins and the refrigerant pipe by the expansion member is inserted to expand the inner and outer diameter of the refrigerant pipe, the refrigerant pipe is parallel to the rear end to be inserted into a pair of through holes at the same time It is bent, the expansion member is characterized in that coupled to the moving block configured to move back and forth to expand and return to the refrigerant pipe.

본 발명에 따른 알루미늄관의 확장장치에 의하면, 이동블록이 확장부재를 전·후로 반복하여 이동시켜 냉매관을 확장시킴으로써 확장작업이 더욱 용이해져 열교환기를 대량생산할 수 있는 효과가 있다.According to the apparatus for expanding an aluminum tube according to the present invention, the movable block repeatedly moves the expansion member back and forth to expand the refrigerant tube, thereby making it easier to expand the mass production.

또한, 냉매관을 절곡한 상태로 투입함으로써 대형냉열기에 설치되는 긴 냉매관을 용이하게 확장할 수 있을 뿐만 아니라, 두 개의 냉매관을 연결하기 위한 용접공정을 생략할 수 있어 생산비용 절감과 누설 불량의 원인을 근본적으로 해결하여 품질이 향상되는 효과가 있다.In addition, by inserting the coolant pipes in a bent state, not only the long coolant pipe installed in the large-sized cooler can be easily expanded, but also the welding process for connecting the two coolant pipes can be omitted, thereby reducing production cost and leakage. There is an effect that the quality is improved by fundamentally solving the cause of the defect.

또한, 확장부재의 오일배출홀은 냉매관 내측의 오일을 배출시켜 유분 잔량을 최소화하는 효과가 있다.
In addition, the oil discharge hole of the expansion member has an effect of minimizing the residual amount of oil by discharging the oil inside the refrigerant pipe.

도 1은 종래에 의한 알루미늄관의 확장장치를 개략적으로 도시한 평면도,
도 2는 종래의 열교환기용 냉매관을 도시한 사시도,
도 3은 도 2의 III 표시 부분 확대도,
도 4는 본 발명에 의한 알루미늄관의 확장장치를 개략적으로 도시한 평면도,
도 5는 본 발명에 의한 이동블록, 고정구, 확장부재의 결합관계를 나타낸 분해 사시도.
도 6은 본 발명에 의한 확장장치의 동작상태를 나타낸 평면도,
도 7은 본 발명에 의한 알루미늄관의 확장장치를 도시한 좌측면도,
도 8은 본 발명에 의한 확장장치의 동작상태를 나타낸 좌측면도,
도 9는 본 발명의 확장부재를 나타낸 정면도.1 is a plan view schematically showing a conventional apparatus for expanding an aluminum tube;
2 is a perspective view showing a conventional refrigerant pipe for a heat exchanger,
3 is an enlarged view of a portion III shown in FIG. 2;
4 is a plan view schematically showing an expansion device of an aluminum tube according to the present invention;
Figure 5 is an exploded perspective view showing a coupling relationship of the moving block, the fixture, the expansion member according to the present invention.
6 is a plan view showing an operating state of the expansion device according to the present invention;
7 is a left side view showing the expansion device of the aluminum tube according to the present invention;
8 is a left side view showing an operating state of the expansion device according to the present invention;
9 is a front view showing the expansion member of the present invention.

본 발명의 바람직한 실시 예를 첨부된 도면을 통해 상세히 설명한다.Preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

본 발명에 의한 알루미늄관의 확장장치는 도 4에서 도시한 바와 같이, 지그(도면미표시)에 복수의 냉각핀(20)이 일렬로 간격을 이루며 정렬되어 있고, 상기 냉각핀(20)에 형성된 한 쌍의 관통공(21)에 냉매관(10)이 삽입되어 확장부재(30)에 의해 지름이 확장됨으로써 냉매관(10)과 냉각핀(20)이 결합된다.As shown in FIG. 4, the apparatus for expanding an aluminum tube according to the present invention is provided with a plurality of cooling fins 20 arranged in a line in a jig (not shown), and arranged on the cooling fins 20. The refrigerant pipe 10 is inserted into the through holes 21 of the pair, and the diameter of the refrigerant pipe 10 is expanded by the expansion member 30 so that the refrigerant pipe 10 and the cooling fin 20 are coupled to each other.

이때, 상기 냉매관(10)은 종래의 확장장치처럼 두 개를 삽입하는 것이 아니라, 냉매관(10)의 후단을 절곡하여 평행하게 형성함으로써 한 쌍의 관통공(21)에 동시에 삽입한다.
At this time, the refrigerant pipe 10 is inserted into the pair of through-holes 21 at the same time by bending and forming the rear end of the refrigerant pipe 10 in parallel, rather than inserting two as in the conventional expansion device.

그리고 상기 냉매관(10)의 전면에는 한 쌍의 확장부재(30)가 냉매관(10)의 내측으로 삽입될 수 있도록 대응하는 간격으로 구비되어 있는데, 상기 확장부재(30)의 선단에는 냉매관(10)의 내측 지름보다 크게 형성됨으로써 삽입에 의해 냉매관(10)의 내·외측 지름을 확장시키는 확장부(31)가 형성되어 있다.In addition, a pair of expansion members 30 are provided at a front surface of the refrigerant pipe 10 at corresponding intervals so that the pair of expansion members 30 may be inserted into the refrigerant pipe 10. By forming larger than the inner diameter of 10, the expansion part 31 which expands the inner and outer diameter of the refrigerant pipe 10 by insertion is formed.

상기 확장부재(30)는 지지블록(60)에 형성된 홀을 통해 전·후로 이동할 수 있게 구성되어 있으며, 레일(40)을 따라 전·후로 이동할 수 있게 구성된 이동블록(50)에 결합 되어있다.
The expansion member 30 is configured to move back and forth through the hole formed in the support block 60, it is coupled to the moving block 50 configured to move forward and backward along the rail 40.

상기 레일(40)에는 도 5에서 도시한 바와 같이 전면과 후면을 관통하는 한 쌍의 안내부(41)이 형성되어 있으며, 상기 안내부(41)에는 한 쌍의 이동블록(50)이 안내부(41)를 따라 전·후로 이동할 수 있도록 결합된다.As shown in FIG. 5, the rail 40 has a pair of guide parts 41 penetrating the front and rear surfaces thereof, and the guide part 41 has a pair of moving blocks 50. It is coupled to move forward and backward along (41).

상기 이동블록(50)의 상측에는 안내부(41)에 삽입되어 전·후로 이동할 수 있도록 대응하는 형상의 삽입부(51)가 형성되어 있고, 상기 삽입부(51)의 전면에는 암나사부(52)가 형성되어 있으며, 상기 암나사부(52)에는 후단에 수나사부(32)가 형성된 확장부재(30)가 나사 결합된다.An insertion part 51 having a corresponding shape is formed on the upper side of the moving block 50 so as to be inserted into the guide part 41 and move forward and backward, and a female thread part 52 on the front surface of the insertion part 51. Is formed, and the female screw portion 52 is screwed with an expansion member 30 having a male screw portion 32 formed at a rear end thereof.

상기 레일(40)에는 복수의 안내부(41)을 형성하여 한 번에 많은 수의 이동블록(50) 및 확장부재(30)를 이동할 수 있게 구성할 수도 있음은 물론이다.
The rail 40 may be configured to move a plurality of moving blocks 50 and the expansion member 30 at a time by forming a plurality of guides 41 of course.

이와 같이 구성된 본 발명의 알루미늄관의 확장장치는 이동블록(50)이 레일(40)을 따라 전진하게 되면 도 6에서 도시한 바와 같이 두 개의 확장부재(30)가 전진하여 확대도에서 나타낸 바와 같이 확장부(31)가 냉매관(10)의 내측으로 삽입된다.In the expansion device of the aluminum tube of the present invention configured as described above, when the moving block 50 moves forward along the rail 40, as shown in FIG. 6, two expansion members 30 move forward as shown in FIG. 6. The expansion part 31 is inserted into the refrigerant pipe 10.

이렇게 확장부재(30)가 냉매관(10)의 지름을 확장시킨 후에는 이동블록(50)이 다시 레일(40)을 따라 후진하여 복귀함으로써 확장부재(30)가 냉매관(10)에서 인출된다.After the expansion member 30 expands the diameter of the refrigerant pipe 10, the movable block 50 moves back along the rail 40 to return and the extension member 30 is drawn out of the refrigerant pipe 10. .

이때 상기 확장부재(30)는 냉매관(10)의 길이에 따라 지지블록(60)의 전면으로 인출되는 길이를 미리 세팅할 수 있으며, 이로써 다양한 길이의 냉매관(10)을 확장할 수 있다.In this case, the expansion member 30 may preset the length of the extension member 30 drawn out to the front of the support block 60 according to the length of the refrigerant tube 10, thereby extending the refrigerant tube 10 of various lengths.

본 실시 예에서는 작동설명을 쉽게 하기 위하여 도면을 최대한 간단히 표현하여 한 개의 레일(40)을 도시하였으나, 실제 장치에 적용할 때는 복수의 레일(40)을 확장장치의 테이블 상측에 설치하여 절곡된 복수의 냉매관(10)을 동시에 확장할 수 있도록 구성하는 것이 바람직하다.
In the present embodiment, one rail 40 is illustrated by simply expressing the drawings in order to easily explain the operation. However, when applied to an actual device, a plurality of rails 40 are installed on the table above the expansion device and bent. It is preferable that the refrigerant pipe 10 is configured to be expanded at the same time.

한편, 상기 이동블록(50)은 도 7에서 도시한 바와 같이 테이블의 상측에 설치된 레일(40)을 따라 이동할 수 있도록 구성되어 있는데, 상기 이동블록(50)은 정·역 방향으로 회전하는 구동모터(70)의 구동에 의해 전·후로 이동한다.On the other hand, the movable block 50 is configured to move along the rail 40 installed on the upper side of the table as shown in Figure 7, the movable block 50 is rotated in the forward and reverse direction drive motor It moves forward and backward by the drive of 70.

상기 구동모터(70)의 회전축에는 수프라켓으로 연결되어 회전하는 체인(71)이 구비되어 있으며, 상기 이동블록(50)과 체인(71)은 연결부(72)로 연결되어 있다.The rotating shaft of the drive motor 70 is provided with a chain 71 which is connected to rotate by a male plaque, the moving block 50 and the chain 71 is connected by a connection portion 72.

따라서 구동모터(70)에 의해 체인(71)이 회전하게 되면 이동블록(50)이 함께 전·후로 이동하게 된다.
Therefore, when the chain 71 is rotated by the drive motor 70, the moving block 50 moves forward and backward together.

도 8은 확장부재(30)가 전진하여 냉매관(10)의 내측으로 삽입된 상태를 나타낸 것으로서, 확장이 이루어진 후에는 구동모터(70)가 역회전하여 이동블록(50)을 복귀시킨다.
8 shows a state in which the expansion member 30 is advanced and inserted into the refrigerant pipe 10. After expansion, the driving motor 70 reversely rotates to return the moving block 50.

또한, 본 발명의 확장부재(30)에는 도 9에서 도시한 바와 같이 확장부(31)의 선단에서 확장부재(30)의 외주면과 연통되는 오일배출홀(33)이 형성되어 있다.In addition, as shown in FIG. 9, the expansion member 30 of the present invention is provided with an oil discharge hole 33 communicating with the outer circumferential surface of the expansion member 30 at the tip of the expansion portion 31.

상기 오일배출홀(33)은 확장작업을 수행할 때 확장부재(30)가 전진하여 냉매관(10)에 주입되는 오일을 확장부(31)의 뒷공간으로 배출하고, 다시 후진할 때 냉매관(10)의 외측으로 오일을 배출함으로써 냉매관(10) 내측의 유분 잔량을 최소화할 수 있다.
The oil discharge hole 33 discharges the oil injected into the refrigerant pipe 10 into the rear space of the expansion part 31 by advancing the expansion member 30 when the expansion operation is performed, and when the oil discharge hole 33 moves backward. By discharging the oil to the outside of the (10) it is possible to minimize the residual amount of oil inside the refrigerant pipe (10).

이와 같이 작동되는 본 발명에 의한 알루미늄관의 확장장치는 이동블록(50)이 확장부재(30)를 전·후로 반복하여 이동시켜 냉매관(10)을 확장시킴으로써 확장작업이 더욱 용이해져 열교환기의 대량생산에 적합하다. In the expansion device of the aluminum tube according to the present invention operated as described above, the movable block 50 repeatedly moves the expansion member 30 back and forth to expand the refrigerant pipe 10 so that the expansion work becomes easier. Suitable for mass production

또한, 냉매관(10)을 절곡한 상태로 투입함으로써 대형냉열기에 설치되는 긴 냉매관을 용이하게 확장할 수 있을 뿐만 아니라, 두 개의 냉매관을 연결하기 위한 용접공정을 생략할 수 있어 품질을 더욱 향상시킬 수 있다.
In addition, by injecting the refrigerant pipe 10 in a bent state, not only the long refrigerant pipe installed in the large-sized cooler can be easily extended, but also the welding process for connecting two refrigerant pipes can be omitted. It can be further improved.

상기와 같은 본 발명은 상술한 특정의 실시 예에 한정되지 아니하며, 청구범위에서 청구하는 본 발명의 요지를 벗어남이 없이 당해 발명이 속하는 분야에서 통상의 지식을 가진 자라면 누구든지 다양한 변경 실시가 가능할 것이다.
The present invention as described above is not limited to the above-described specific embodiments, and any person having ordinary skill in the art to which the present invention pertains may make various changes without departing from the gist of the present invention as claimed in the claims. will be.

10 : 냉매관 20 : 냉각핀
21 : 관통공 30 : 확장부재
31 : 확장부 32 : 수나사부
33 : 오일배출홀 40 : 레일
41 : 안내부 50 : 이동블록
51 : 삽입부 52 : 암나사부
60 : 지지블록 70 : 구동모터
71 : 체인 72 : 연결부10: refrigerant pipe 20: cooling fin
21: through hole 30: expansion member
31: extension part 32: male thread part
33: oil discharge hole 40: rail
41: guide 50: moving block
51: insertion part 52: female thread part
60: support block 70: drive motor
71: chain 72: connection

Claims (4)

한 쌍의 관통공이 형성된 복수의 냉각핀이 일렬로 정렬되고, 상기 관통공에는 알루미늄 재질의 냉매관이 삽입되며, 상기 냉매관의 내측에는 선단에 확장부가 형성된 확장부재가 삽입되어 냉매관의 내·외측 지름을 확장시킴으로써 냉각핀과 냉매관을 결합시키는 알루미늄관의 확장장치에 있어서,
상기 냉매관은 한 쌍의 관통공에 동시에 삽입될 수 있도록 평행을 이루며 후단이 절곡되고, 상기 확장부재는 냉매관을 확장한 후 복귀할 수 있도록 전·후로 이동할 수 있게 구성된 이동블록에 결합되되,
상기 확장부재에는 확장부의 선단과 확장부재의 외주면을 연통시키는 오일배출홀이 형성된 것을 특징으로 하는 알루미늄관의 확장장치.
A plurality of cooling fins having a pair of through holes are arranged in a line, and the coolant tube made of aluminum is inserted into the through hole, and an expansion member having an extension part is inserted into the inside of the coolant tube so that the inside of the coolant tube is inserted. In the expansion device of the aluminum tube to combine the cooling fins and the refrigerant pipe by expanding the outer diameter,
The refrigerant pipe is parallel to be inserted into a pair of through-holes and the rear end is bent, the expansion member is coupled to a moving block configured to move back and forth to expand and return to the refrigerant pipe,
The expansion member of the aluminum tube, characterized in that the oil discharge hole for communicating the front end of the expansion portion and the outer peripheral surface of the expansion member is formed.
제 1항에 있어서,
상기 이동블록은 정·역 방향으로 회전하는 구동모터에 의해 이동하는 체인과 연결되고, 상기 이동블록에는 확장부재가 결합되어 레일을 따라 이동할 수 있게 구성된 것을 특징으로 하는 알루미늄관의 확장장치.
The method of claim 1,
The moving block is connected to the chain is moved by a drive motor that rotates in the forward and reverse direction, the movable block is expanded device of the aluminum tube, characterized in that configured to move along the rail coupled to the expansion member.
제 2항에 있어서,
상기 이동블록에는 암나사부가 형성되고, 상기 암나사부에는 후단에 수나사부가 형성된 확장부재가 나사 결합된 것을 특징으로 하는 알루미늄관의 확장장치.
The method of claim 2,
The movable block is formed with a female screw portion, the expansion member of the aluminum tube, characterized in that the female screw portion is screw-expanded expansion member formed in the rear end.
삭제delete
KR1020110033711A 2011-04-12 2011-04-12 Expansion device for aluminium pipe KR101092036B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20170106264A (en) * 2015-09-30 2017-09-20 주식회사 위닉스 Refrigerants pipe expanding apparatus and manufacturing method of refrigerants pipe using thereof
JP2018149544A (en) * 2017-03-09 2018-09-27 竹澤工業株式会社 Tube expanding apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20170106264A (en) * 2015-09-30 2017-09-20 주식회사 위닉스 Refrigerants pipe expanding apparatus and manufacturing method of refrigerants pipe using thereof
KR101879582B1 (en) * 2015-09-30 2018-07-19 주식회사 위닉스 Refrigerants pipe expanding apparatus and manufacturing method of refrigerants pipe using thereof
JP2018149544A (en) * 2017-03-09 2018-09-27 竹澤工業株式会社 Tube expanding apparatus

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