KR20060086582A - Titanium alloy sheets boring punching device for a aircraft - Google Patents

Titanium alloy sheets boring punching device for a aircraft Download PDF

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Publication number
KR20060086582A
KR20060086582A KR1020050007427A KR20050007427A KR20060086582A KR 20060086582 A KR20060086582 A KR 20060086582A KR 1020050007427 A KR1020050007427 A KR 1020050007427A KR 20050007427 A KR20050007427 A KR 20050007427A KR 20060086582 A KR20060086582 A KR 20060086582A
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South Korea
Prior art keywords
punching
titanium alloy
aircraft
tool
punching device
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KR1020050007427A
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Korean (ko)
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이경근
김형래
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이경근
김형래
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G1/00—Scaffolds primarily resting on the ground
    • E04G1/15—Scaffolds primarily resting on the ground essentially comprising special means for supporting or forming platforms; Platforms
    • E04G1/152—Platforms made of metal or with metal-supporting frame
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
    • B63C5/00—Equipment usable both on slipways and in dry docks
    • B63C5/02—Stagings; Scaffolding; Shores or struts
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/32—Safety or protective measures for persons during the construction of buildings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
    • B63C5/00—Equipment usable both on slipways and in dry docks
    • B63C5/02—Stagings; Scaffolding; Shores or struts
    • B63C2005/025—Stagings, or scaffolding, i.e. constructions providing temporary working platforms on slipways, in building or repair docks, or inside hulls

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Abstract

본 발명은 항공기의 동체, 특히 핫섹션인 엔진의 커버를 형성하는 티탄 합금판재에 패스너 체결용 홀을 천공할 수 있게 하는 펀칭장치에 관한 것으로, 유압을 발생하는 유압펌프나 발생된 유압을 호스를 통하여 공급받는 실린더와 실린더의 전면에 결합된 펀칭툴과, 펀칭툴의 펀칭부를 수용하는 홀을 갖춘 가이드가 결합되어 펀칭 유니트를 형성한 것을 특징으로 한다.BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a punching device for drilling a fastener fastening hole in a titanium alloy sheet forming a cover of an engine body, particularly a hot section engine. The punching tool coupled to the cylinder and the front side of the cylinder supplied through the guide, and the guide having a hole for receiving the punching portion of the punching tool is coupled to form a punching unit.

항공기, 티탄합금, 펀칭, 유압, 툴Aircraft, Titanium Alloy, Punching, Hydraulic, Tool

Description

항공기용 티탄 합금판재 천공 펀칭장치{Titanium Alloy sheets Boring Punching device for A Aircraft} Titanium Alloy sheets Boring Punching device for A Aircraft}             

도 1은 본 발명 항공기용 티탄 합금판재 천공 펀칭장치의 측면도1 is a side view of the titanium alloy sheet punching device for the present invention aircraft

도 2는 본 발명 항공기용 티탄 합금판재 천공 펀칭장치의 정면도Figure 2 is a front view of the titanium alloy sheet punching device for aircraft according to the present invention

도 3은 본 발명 펀칭툴의 상세도Figure 3 is a detailed view of the present punching tool

※ 도면의 주요부분에 대한 부호의 설명※ Explanation of code for main part of drawing

1. 오일탱크 2. 모터1. Oil tank 2. Motor

3. 유압펌프 4. 솔레노이드 밸브3. Hydraulic pump 4. Solenoid valve

5. 전장박스 6. 게이지 콕5. Battlefield Box 6. Gauge Cock

7. 메니폴드 블록 8. 풋 스위치7. Manifold Block 8. Foot Switch

9. 압력 게이지 10. 주유구9. Pressure gauge 10. Filling hole

11. 유면계 12. 호스11.Oil gauge 12.Hose

13. 실린더 14. 가이드13. Cylinder 14. Guide

15. 펀칭툴 16. 캐스터15. Punching Tool 16. Casters

17. 손잡이 18. 펀칭 유니트17. Handle 18. Punching Unit

19. 홀 20. 본체19.hole 20.body

본 발명은 항공기의 동체, 특히 핫센션(Hot Section)인 엔진의 커버를 형성하는 티탄(Ti) 합금판재에 패스너 체결용 홀을 천공할 수 있게 하는 펀칭장치에 관한 것이다.The present invention relates to a punching device that makes it possible to drill holes for fastening fasteners in a titanium (Ti) alloy sheet forming a cover of an engine body, in particular a hot section engine.

항공기의 동체는 수작업에 의해 판재를 성형하고 성형된 판재에 다수의 홀을 천공한 후 패스너에 의하여 결합한다.The fuselage of the aircraft is formed by hand plate and punched a plurality of holes in the molded plate and then joined by fasteners.

항공기동체의 대부분을 구성하는 알루미늄합금은 회전식 공구를 사용하여 쉽게 천공이 가능하나 고온이 발생하는 엔진의 연소부 및 배기부는 내열 및 내부식성이 우수하며 가벼운 티탄합금의 판재로 성형하고 체결공을 천공한 후 패스너로 결합된다.Aluminum alloys, which make up most of the aircraft's fuselage, can be easily drilled using rotary tools, but the combustion and exhaust parts of engines that generate high temperatures are excellent in heat and corrosion resistance. After that it is combined with fasteners.

엔진의 핫섹션 커버는 보잉사 항공기의 경우 대략 1㎜ 정도의 두께를 가진 티탄합금판재를 성형하고 2∼3겹으로 스포트 용접후 하나의 조립체에는 17.5㎜정도의 빅사이즈 패스너 홀이 평균 35개 정도 천공된다.The hot section cover of the engine is made of titanium alloy sheet having a thickness of about 1 mm in Boeing aircraft, and after spot welding in two or three layers, one assembly has about 35 large fastener holes of 17.5 mm in average. Perforated.

그러나 티탄합금은 극히 단단할 뿐 아니라 열을 받으면 스스로 경화되는 자경성을 가지고 있어 통상 885℃로 가열하여 적열상태에서 단조가공을 행하나 천공작업을 적열상태에서 실시하기 어려우므로 회전식 절삭공구를 사용하여 천공작업을 수행하였다.However, titanium alloys are not only extremely hard but also hardly self-hardened when subjected to heat, so they are usually heated to 885 ℃ to perform forging in the red state, but it is difficult to carry out drilling in the red state. Drilling work was performed.

종래 회전식 공구를 사용하는 커버의 천공작업은 커버의 크기가 크고 천공되는 홀의 방향이 다양하여 천공장비에 고정하여 기계적인 압력을 가하여 천공작업을 하지 못하고 공압드릴건에 엔드밀(end mill)을 장착하여 300RPM 이하의 저속에서 작업자가 인력으로 압력을 가하면서 천공작업을 수행하였으나 공압드릴건과 엔드밀의 중량이 무겁고 커버의 재질이 단단하여 많은 체력소모가 필요하여 하나의 홀을 천공하는 데에는 숙련자의 경우 3분, 비숙련자는 숙련자의 3배 이상의 작업시간이 소요되었을 뿐 아니라 엔드밀의 마모가 심하게 발생하고 작업자의 숙련도에 따라서는 천공작업에 따른 불량율이 높아진다는 문제점이 있었고, 또한 엔드밀에 의한 천공작업후 버(Burr)가 발생하여 후속 마무리작업에도 많은 인력이 필요하였다.Conventionally, the drilling of the cover using a rotary tool has a large size of the cover and the direction of the hole to be drilled is various, so it is fixed to the drilling equipment so that mechanical pressure is not applied to the drilling work, and an end mill is mounted on the pneumatic drill gun. When the worker presses the manpower at a low speed of less than 300 RPM, the punching work was carried out, but the pneumatic drill gun and the end mill are heavy and the material of the cover is hard, which requires a lot of stamina. 3 minutes, the non-skilled person not only took more than three times the working time of the skilled person but also suffered from abrasion of the end mill and the failure rate according to the drilling work according to the skill of the operator. A burr was generated, which required a lot of manpower for subsequent finishing.

본 발명은 상기와 같은 문제점을 해결하기 위하여 안출된 것으로 유압을 이용한 순간적인 압력으로 펀칭툴에 의하여 티탄합금 판재를 신속하게 천공하여 생산성을 높일 수 있게 하는 것을 목적으로 한다.The present invention has been made in order to solve the above problems, an object of the present invention to increase the productivity by punching a titanium alloy sheet by a punching tool at an instantaneous pressure using hydraulic pressure.

본 발명의 또다른 목적은 천공공구와 작업자의 체력소모를 줄이고, 천공작업에 따른 불량발생율을 저감하는 것이다.Another object of the present invention is to reduce the stamina consumption of the drilling tool and the operator, and to reduce the failure rate according to the drilling operation.

본 발명의 또다른 목적은 천공작업에 따른 버의 발생을 억제하여 마무리작업 소요인력을 줄일 수 있게 하는 것이다.

Still another object of the present invention is to reduce the labor required for finishing work by suppressing the occurrence of burrs due to drilling.

상기한 목적을 위한 본 발명은 이동이 용이하도록 본체의 하부에 구비된 캐스터와 본체에 내장되는 오일탱크와 오일탱크의 상부면에 탑재되는 모터와 모터에 의하여 구동되는 유압을 발생하는 기어펌프와, 기어펌프에서 발생하는 유압을 개폐하는 솔레노이드 밸브와 펀칭장치를 제어하는 전장박스와 유압을 펀칭유니트로 공급하는 유압호스와 펀칭유니트를 구성하는 실린더와 펀칭툴 및 가이드로 구성되며 본 펀칭장치의 유압개폐작동은 풋스위치에 의하도록 구성된다.The present invention for the above object and the caster provided in the lower portion of the main body and the gear pump for generating the oil pressure driven by the motor and the motor mounted on the upper surface of the oil tank and the oil tank built in the main body, It consists of a solenoid valve for opening and closing the oil generated from the gear pump, an electric box for controlling the punching device, a hydraulic hose for supplying the hydraulic pressure to the punching unit, a cylinder constituting the punching unit, a punching tool and a guide, and the hydraulic opening and closing of the punching device. Operation is configured to be by footswitch.

이하에서 첨부된 도면을 참조하여 본 발명의 바람직한 실시 예를 보다 상세하게 설명하기로 한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 1은 본 발명 항공기용 티탄 합금판재 천공 펀칭장치의 측면도이고,1 is a side view of the titanium alloy sheet punching device for aircraft of the present invention,

도 2는 본 발명 항공기용 티탄 합금판재 천공 펀칭장치의 정면도이고,Figure 2 is a front view of the titanium alloy sheet punching device for aircraft according to the present invention,

도 3은 본 발명 펀칭툴의 상세도이다.Figure 3 is a detailed view of the punching tool of the present invention.

도면에 도시한 바와 같이 본 발명 항공기용 티탄 합금판재 천공 펀칭장치는 작업장내를 용이하게 이동할 수 있도록 컴펙트하게 구성되고 본체(20)의 하부에는 이동용 바퀴인 캐스터(16)가 부착되며 본체의 상부 일측면에는 이동용 손잡이(17)가 구비된다.As shown in the drawings, the titanium alloy sheet punching device for aircraft of the present invention is compactly configured to easily move in the workplace, and the caster 16, which is a wheel for movement, is attached to the lower part of the main body 20, and the upper one of the main body. The moving handle 17 is provided on the side.

본체(20)의 하부에는 오일탱크(1)가 내장되며 오일탱크(1)의 상부면에는 모터(2)가 구비되어 유압을 발생시키는 기어펌프를 구동한다.The oil tank 1 is built in the lower part of the main body 20, and the motor 2 is provided in the upper surface of the oil tank 1 to drive a gear pump for generating hydraulic pressure.

유압펌프(3)는 기어펌프에 한정되지는 않으나, 펀칭유니트(18)에 공급되는 유압이 160㎏/㎠ 정도의 고압이 필요하므로 높은 유압과 컴펙트한 구성을 충족할 수 있는 기어펌프를 채용하는 것이 바람직하다.The hydraulic pump 3 is not limited to the gear pump, but since the hydraulic pressure supplied to the punching unit 18 requires a high pressure of about 160 kg / cm 2, the hydraulic pump 3 employs a gear pump that can satisfy a high hydraulic pressure and a compact configuration. It is preferable.

본체(20)의 상부 일측면에는 본 펀칭장치의 전기계통을 제어하는 전장박스(5)와 유압을 개폐하는 솔레노이드 밸브(4)가 구비되고 솔레노이드 밸브(4)에는 풋스위치(8)가 길게 전선으로 연결되어 있다.The upper side of the main body 20 is provided with an electric box (5) for controlling the electrical system of the punching device and a solenoid valve (4) for opening and closing the hydraulic pressure, the solenoid valve (4) has a foot switch (8) long wire Is connected.

유압을 개폐하는 스위치를 발로 작동하게 하는 것은 펀칭유니트(18)를 양손으로 파지하여 작업하는 관계상 조작의 편의성을 증대하기 위함이다.It is to increase the convenience of operation in relation to the gripping operation of the punching unit 18 with both hands to operate the switch for opening and closing the hydraulic pressure by foot.

본체의 유압펌프(3)에서 발생한 유압은 호스(12)를 통하여 펀칭유니트(18)의 실린더(13)에 공급된다.The hydraulic pressure generated in the hydraulic pump 3 of the main body is supplied to the cylinder 13 of the punching unit 18 through the hose 12.

실린더(13)는 가이드(14)에 의하여 지지되고, 실린더(13)의 앞쪽에는 펀칭툴(15)이 고정되어 있다.The cylinder 13 is supported by the guide 14, and the punching tool 15 is fixed to the front of the cylinder 13.

펀칭툴(15)은 단단한 금속인 티탄합금을 펀칭할 수 있도록 초경공구 소재로 형성하는 것이 바람직하며 펀칭툴(15)의 선단부는 가이드(14)에 천공된 홀(19)에 최소한의 여유치수를 가지면서 삽입되게 구성되어 펀칭시 버의 발생을 억제시킨다.The punching tool 15 is preferably formed of a cemented carbide tool to punch a titanium alloy, which is a hard metal, and the tip of the punching tool 15 has a minimum clearance in the hole 19 drilled in the guide 14. It is configured to be inserted while having to suppress the occurrence of burrs when punching.

펀칭툴(15)의 선단부의 형상은 공지된 펀칭툴(15)의 형상을 채택하여도 무방하다.The shape of the tip of the punching tool 15 may adopt the shape of the known punching tool 15.

본체(20)의 전장박스(5)가 구비된 상부측에는 본 펀칭장치의 유압을 점검할 수 있는 압력게이지(9)와 압력게이지(9)에 유압의 공급을 단속하는 게이지 콕(6)과 이를 지지하는 메니폴더 블록(7)이 구비되며 본체(20)의 측면으로는 오일탱크(1)의 유면을 점검할 수 있는 유면계(11)가 부착된다.On the upper side of the main body 20, the electric box 5 is provided with a pressure gauge 9 for checking the hydraulic pressure of the punching device and a gauge cock 6 for controlling the supply of hydraulic pressure to the pressure gauge 9 and A supporting manifold block 7 is provided, and a side face 11 of the main body 20 is attached to the oil level gauge 11 for checking the oil level of the oil tank 1.

이상에서 설명한 본 발명의 구성에 따른 작동은 펀칭할 커버를 자세 변경이 가능하도록 선회할 수 있는 어셈블리지그(assembly jig)(도면 미도시)에 고정하고, 펀칭유니트(18)를 양손으로 파지한 다음 펀칭유니트의 펀칭툴(15)과 가이드(14) 사이에 천공할 커버의 부분을 삽입하고 펀칭위치가 셋팅되면 풋스위치(8)를 작동하여 순간적인 유압에 의하여 펀칭툴(15)이 전진하여 커버를 펀칭한 후 다음 작업위치를 이동한다.Operation according to the configuration of the present invention described above is fixed to the assembly jig (assembly jig) (not shown) that can be pivoted to change the posture to be punched, and holding the punching unit 18 with both hands Insert the part of the cover to be punched between the punching tool 15 and the guide 14 of the punching unit, and when the punching position is set, the foot switch 8 is operated to advance the punching tool 15 by the instantaneous hydraulic pressure. After punching, move to the next working position.

이상에서 설명한 바와 같이 본 발명은 순간적인 유압에 의하여 펀칭으로 천공하므로 천공에 소요되는 시간은 극히 짧으나 펀칭위치를 셋팅하고 확인하는 작업준비시간이 필요하므로 본 장치를 이용할 경우 하나의 홀을 천공하는데 1분 정도로 단축이 가능하므로 종래 엔드밀을 이용한 천공작업시 보다 3배 정도의 생산성을 향상할 수 있으며 미숙련자라 할지라도 사용에 별다른 어려움이 없고, 사용에 따른 체력소모도 적어 작업자의 작업 피로도를 감소시킬 수 있을 뿐 아니라 천공작업의 균일성과 용이성으로 인하여 천공작업에 따른 불량율을 감소할 수 있고 천공 후 버의 발생이 현저히 감소하여 마무리 작업에 따른 인력의 수요를 경감할 수 있게 하는 효과가 있다.As described above, since the present invention punches by punching by momentary hydraulic pressure, the time required for drilling is extremely short, but the time required for setting and checking the punching position is required. Since it can be shortened to about 3 minutes, it can improve productivity about 3 times compared to the conventional drilling work using end mill, and even the inexperienced person does not have any difficulty in using, and the physical strength is reduced according to the use. In addition, due to the uniformity and ease of drilling work can reduce the defective rate due to the drilling work, and the occurrence of the punching burr is significantly reduced, thereby reducing the demand of manpower due to the finishing work.

Claims (2)

항공기용 티탄 합금 판재를 천공하기 위한 장치에 있어서,In the apparatus for drilling the titanium alloy plate for aircraft, 유압을 발생하는 유압발생부와 유압을 이송하는 호스(12)와 호스에 연결되는 실린더(13)와 실린더의 전부에 결합된 펀칭툴(15)과 펀칭툴의 펀칭부를 수용하는 홀(19)을 갖춘 가이드(14)가 결합되어 펀칭유니트(18)를 구성하는 것을 특징으로 하는 항공기용 티탄 합금판재 천공 펀칭장치.A hydraulic generating unit for generating hydraulic pressure, a hose 12 for transferring hydraulic pressure, a cylinder 13 connected to the hose, a punching tool 15 coupled to all of the cylinders, and a hole 19 for receiving a punching portion of the punching tool. Titanium alloy sheet punching punching device for aircraft, characterized in that the combined guide (14) to form a punching unit (18). 제 1항에 있어서, 펀칭 유니트(18)에 공급되는 유압의 개폐는 풋스위치(8)에 의하는 것을 특징으로 하는 항공기용 티탄 합금판재 천공 펀칭장치.The punching device according to claim 1, wherein the opening and closing of the hydraulic pressure supplied to the punching unit (18) is performed by a foot switch (8).
KR1020050007427A 2005-01-27 2005-01-27 Titanium alloy sheets boring punching device for a aircraft KR20060086582A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20170067894A (en) * 2014-10-17 2017-06-16 아이가즈 아노님 서케티 A hole-making system
CN107626813A (en) * 2017-10-31 2018-01-26 天津三田协楔科技股份有限公司 A kind of portable hydro piercing device
KR200485833Y1 (en) 2016-08-26 2018-03-02 삼흥정공 주식회사 Hole drilling device for airplane exterior

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20170067894A (en) * 2014-10-17 2017-06-16 아이가즈 아노님 서케티 A hole-making system
KR200485833Y1 (en) 2016-08-26 2018-03-02 삼흥정공 주식회사 Hole drilling device for airplane exterior
CN107626813A (en) * 2017-10-31 2018-01-26 天津三田协楔科技股份有限公司 A kind of portable hydro piercing device

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