KR100321468B1 - A jig for Perforation Working - Google Patents
A jig for Perforation Working Download PDFInfo
- Publication number
- KR100321468B1 KR100321468B1 KR1019990023506A KR19990023506A KR100321468B1 KR 100321468 B1 KR100321468 B1 KR 100321468B1 KR 1019990023506 A KR1019990023506 A KR 1019990023506A KR 19990023506 A KR19990023506 A KR 19990023506A KR 100321468 B1 KR100321468 B1 KR 100321468B1
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- South Korea
- Prior art keywords
- housing
- jig
- workpiece
- present
- drilling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000005553 drilling Methods 0.000 claims abstract description 14
- 239000013013 elastic material Substances 0.000 claims abstract description 4
- 239000011261 inert gas Substances 0.000 claims description 10
- 239000007789 gas Substances 0.000 claims description 9
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 7
- 239000001301 oxygen Substances 0.000 description 7
- 229910052760 oxygen Inorganic materials 0.000 description 7
- 239000002184 metal Substances 0.000 description 5
- 150000001247 metal acetylides Chemical class 0.000 description 4
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012805 post-processing Methods 0.000 description 2
- 238000010079 rubber tapping Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 238000000137 annealing Methods 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23Q—IGNITION; EXTINGUISHING-DEVICES
- F23Q3/00—Igniters using electrically-produced sparks
- F23Q3/006—Details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D99/00—Subject matter not provided for in other groups of this subclass
- F27D99/0001—Heating elements or systems
- F27D99/0033—Heating elements or systems using burners
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Drilling And Boring (AREA)
Abstract
본 발명은 천공작업용 지그에 관한 것으로, 상부중앙에 돌출된 끼움부(5)와, 이 끼움부(5)와 일체로 신축성 있는 재질로 이루어진 원통형상의 하우징(6) 및, 이 하우징(6)의 상부 일측에 형성된 가스주입구(7)를 갖추고 있다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a jig for drilling work, comprising: a cylindrical portion (6) protruding from the upper center, a cylindrical housing (6) made of an elastic material integrally with the fitting portion (5), and the housing (6) of It is provided with the gas inlet 7 formed in the upper one side.
Description
본 발명은 지그(Jig)에 관한 것으로 특히 드릴작업이나 탭 작업과 같은 천공작업을 불활성가스 분위기에서 할 수 있도록 함으로써 후처리작업을 하지 않고도 제품의 품질이 저하되는 것을 효과적으로 방지할 수 있도록 한 천공작업용 지그에 관한 것이다.The present invention relates to jigs (Jig) and in particular for drilling work such as drilling work or tap work in the inert gas atmosphere to be able to effectively prevent deterioration of product quality without post-treatment work for drilling work It's about the jig.
주지된 바와 같이 관(Tube)이나 판재를 용접하기 위해 이음부를 형성시키거나, 정확성이 요구되는 자동차 산업이나 금속부품 생산 및 일반적인 기계조립을 하는 생산현장에서 행해지는 절삭드릴(Drill)작업이나 탭(Tap)작업시에는 일반적으로 드릴링머신(Drilling Machine)을 이용하게 되는데, 이 때 사용되는 드릴로서는 최근 네덜란드의 FLOWDRILL B.V.사(社)에서 개발한 플로우드릴(Flowdrill) 및 플로우 탭(Flowtap)이 있다.As is well known, drills or taps are carried out in the production site where the joints are formed to weld tubes or plates, or in the automobile industry or metal parts production where precision is required, and in general mechanical assembly. In general, a tapping machine uses a drilling machine. The drill used in this case includes a flow drill and a flow tap recently developed by FLOWDRILL BV of the Netherlands.
이 플로우드릴은 도 5에 개략적으로 도시된 것과 같이, 드릴본체(1)의 하부에 테이퍼진 비트부(2)가 형성되어 드릴본체(1)를 회전시키면서 비트부(2)로 공작물(3)을 가압시키면 플로우드릴(4)의 회전력과 공작물(3) 사이의 마찰에 의해 발생되는 약 900℃ 정도 되는 고온의 열로 공작물을 용융시켜 구멍(도시되지 않음)과 함께 탭 또는 이음새를 위한 형상이 만들어지게 된다.As shown in FIG. 5, the flow drill has a tapered bit portion 2 formed at the bottom of the drill body 1 to rotate the drill body 1 to the workpiece 3 as the bit portion 2. Pressing melts the workpiece with a high temperature heat of about 900 ° C. generated by the rotational force of the flow drill 4 and the friction between the workpiece 3 to form a shape for a tab or seam with holes (not shown). You lose.
그런데 상기와 같이 플로우드릴(4) 또는 플로우탭(도시되지 않음)으로 천공작업을 하고 탭핑을 하게 되면, 작업속도가 빨라 생산성을 향상시킬 수 있고 칩 (Chip)이 거의 발생하지 않을 뿐 아니라 오(誤)작업을 막아 가공비를 절감할 수 있으며, 천공부의 정도(定度)도 높일 수 있다는 장점이 있는 반면, 대개 대기중에서천공작업을 하기 때문에 대기중의 산소와 용융금속이 접촉하면서 산화반응을 일으키면서 공작물(3)의 천공부 주위에 산화막을 형성하게 된다.However, when drilling and tapping with the flow drill 4 or the flow tap (not shown) as described above, the working speed is high, which can improve productivity and hardly generate chips. Iv) It can reduce the processing cost by preventing the work and improve the accuracy of the perforation part, while the perforation work is usually performed in the air, so the oxygen reaction in the contact with the oxygen in the atmosphere and the molten metal While forming an oxide film around the perforations of the work piece 3.
그리고 특히 공작물이 스테인레스강(Stainless Steel)인 경우에는 탄화물이 석출되어 이 탄화물로 인하여 천공부 주위에 부식을 발생시키는 원인으로 작용할 뿐 아니라, 스테인레스강의 고유특징인 광택이 떨어지게 되어 품질을 저하시키게 됨에 따라 광휘소둔열처리나 전해처리와 같은 후가공을 해서 탄화물을 제거해야 하는데, 이 같은 후처리작업은 비용이 많이 들 뿐 아니라 작업하기도 어렵다는 단점이 있다.In particular, when the workpiece is stainless steel, carbides are precipitated and cause corrosion around the perforations due to the carbides, and the quality of the stainless steels is degraded, resulting in deterioration of quality. It is necessary to remove carbides by post-processing such as bright annealing heat treatment or electrolytic treatment. Such post-treatment is expensive and difficult to work with.
이에 본 발명은 상기와 같은 문제점을 해결하기 위하여 발명된 것으로, 불활성가스분위기에서 천공작업을 할 수 있도록 하여 대기중의 산소와 용융금속이 결합하여 산화막이 형성되는 것을 효과적으로 방지함으로써, 부식이 일어나는 것을 최소화하면서 후처리 작업을 하지 않고도 공작물의 품질을 유지할 수 있도록 된 천공작업용 지그를 제공함에 그 목적이 있다.Accordingly, the present invention has been invented to solve the above problems, it is possible to perforate in an inert gas atmosphere to effectively prevent the formation of the oxide film by combining the oxygen and molten metal in the atmosphere, the corrosion occurs The object is to provide a drilling jig that is capable of maintaining the quality of the workpiece without minimizing post-treatment.
도 1은 본 발명에 따른 지그의 1실시예를 도시한 사시도,1 is a perspective view showing an embodiment of a jig according to the present invention;
도 2는 본 발명에 따른 지그의 2실시예를 도시한 사시도,2 is a perspective view showing a second embodiment of a jig according to the present invention;
도 3은 본 발명에 따른 지그의 사용상태 단면도이다.Figure 3 is a cross-sectional view of the use state of the jig according to the present invention.
도 4는 본 발명에 따른 지그의 동작원리를 설명하기 위한 블럭도,4 is a block diagram for explaining the operation principle of the jig according to the present invention;
도 5는 플로우드릴과 공작물의 개략 단면도이다.5 is a schematic cross-sectional view of a flow drill and a workpiece.
1 --- 드릴본체, 2 --- 비트부,1 --- drill body, 2 --- bit part,
3 --- 공작물, 4 --- 플로우드릴,3 --- workpiece, 4 --- flow drill,
5 --- 끼움부, 6 --- 하우징,5 --- fitting, 6 --- housing,
7 --- 가스주입구, 8 --- 콘트롤러,7 --- gas inlet, 8 --- controller,
9 --- 솔레노이드밸브, 10 --- 지그,9 --- solenoid valve, 10 --- jig,
11 --- 요부,11 --- main part,
상기와 같은 목적을 달성하기 위한 본 발명은, 상부중앙에 돌출된 끼움부와, 이 끼움부와 일체로 신축성 있는 재질로 이루어지고 길이방향으로 신축되도록 된 원통형상의 하우징 및, 이 하우징의 상부 일측에 형성된 가스주입구를 갖추고서,이 가스주입구를 통해 불활성가스를 주입하면서 천공작업을 할 수 있도록 함으로써, 공작물에 산화막이 형성되는 것을 방지하여 탄화물을 별도로 제거하는 후처리작업을 하지 않고도 공작물의 품질을 유지할 수 있도록 되어 있다.The present invention for achieving the above object, the fitting portion protruding in the upper center, the cylindrical housing made of an elastic material integrally with the fitting portion and to be stretched in the longitudinal direction, and the upper one side of the housing With the gas inlet formed, the gas inlet allows the drilling operation while injecting the inert gas, thereby preventing the formation of an oxide film on the workpiece, thereby maintaining the quality of the workpiece without performing post-treatment to remove carbides separately. It is supposed to be.
이하 본 발명을 첨부된 예시도면에 의거 상세히 설명한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
도 1은 본 발명에 따른 지그의 사시도이고, 도 3은 본 발명에 따른 지그의 사용상태를 도시한 단면도로서, 본 발명은 이들 도면에 도시된 것과 같이, 상부중앙에 끼움부(5)가 돌출되고, 이 끼움부(5)와 일체로 신축성 있는 재질로 이루어진 원통형상의 하우징(6)이 구비되는 한편, 이 하우징(6)의 상부 일측에 가스주입구(7)가 형성되어 있고, 이 가스주입구(7)에 연결된 공급배관(도시되지 않음)에는 콘트롤러(8)와 전기적으로 연결된 솔레노이드밸브(9)가 설치되고, 상기 콘트롤러(8)는 드릴링머신의 레버(도시되지 않음)와 전기적으로 연결되어 있다.1 is a perspective view of a jig according to the present invention, Figure 3 is a cross-sectional view showing a state of use of the jig according to the present invention, the present invention, as shown in these figures, the fitting portion 5 protrudes in the upper center And a cylindrical housing 6 made of an elastic material integrally with the fitting portion 5, while a gas inlet 7 is formed at an upper side of the housing 6, and the gas inlet ( A supply pipe (not shown) connected to 7) is provided with a solenoid valve 9 electrically connected to a controller 8, and the controller 8 is electrically connected to a lever (not shown) of the drilling machine. .
상기 하우징(6)은 실리콘고무와 같이 내열고무로 제조되고, 예컨대 벨로우즈와 같이 자중에 의해 길이방향으로 신장 및 수축될 수 있으며, 전체 길이는 스핀들(도시되지 않음)의 길이와 이에 수직으로 장착되는 플로우드릴(4)의 길이를 합한 길이보다 다소 길게 형성되어 있다.The housing 6 is made of heat resistant rubber, such as silicone rubber, and can be elongated and contracted in the longitudinal direction by its own weight, such as a bellows, the entire length being mounted perpendicular to the length of the spindle (not shown). The length of the flow drill 4 is formed rather longer than the combined length.
따라서 이상과 같이 구성된 지그(10)를 상기 끼움부(5)를 매개로 회전되지 않는 축인 스핀들헤드(도시되지 않음)에 조임밴드(도시되지 않음)와 같은 체결부재로 고정설치한 다음, 레버를 조작하여 스핀들헤드를 수직으로 하강시키게 되면, 상기 콘트롤러(8)가 이를 감지하여 솔레노이드밸브(9)로 제어신호를 인가시키게 된다.Therefore, the jig 10 configured as described above is fixed to the spindle head (not shown), which is an axis which does not rotate through the fitting portion 5, with a fastening member such as a fastening band (not shown), and then the lever is mounted. When the spindle head is vertically lowered by manipulation, the controller 8 detects this and applies a control signal to the solenoid valve 9.
이 제어신호에 따라 솔레노이드밸브(9)가 '온(On)'으로 되면 상기 가스주입구(7)를 통해 아르곤이나 질소와 같은 불활성가스를 하우징(6)내로 주입시키게 되고, 이 하우징(6)의 하강력으로 인해 불활성가스가 하우징(6)내의 산소를 밀어내면서 하우징(6)내부를 불활성가스 분위기로 만들어 주게 된다.When the solenoid valve 9 is 'On' according to the control signal, an inert gas such as argon or nitrogen is injected into the housing 6 through the gas inlet 7. Due to the lowering force, the inert gas pushes the oxygen in the housing 6 to make the inside of the housing 6 into an inert gas atmosphere.
즉, 작업자가 하우징(6)을 공작물(3)까지 완전히 내리게 되면, 공작물(3)의 표면에 대해 하우징(6)이 길이방향으로 눌려지게 됨과 동시에 불활성가스의 주입압력에 의해 하우징(6)내에 잔존하는 산소가 하우징(6)의 하단면과 공작물(3)의 표면 사이의 틈새를 통해 배출되게 되며, 이 상태에서 스핀들을 회전시키면 불활성가스분위기에서 비트부(2)가 공작물(3)에 천공작업을 하게 됨에 따라, 용융금속이 대기중의 산소와 접촉하여 천공부 주위에 산화막을 형성시키게 되는 것을 방지할 수 있게 된다.That is, when the operator completely lowers the housing 6 to the work piece 3, the housing 6 is pressed in the longitudinal direction with respect to the surface of the work piece 3, and at the same time, the inlet gas is injected into the housing 6 by the injection pressure of the inert gas. The remaining oxygen is discharged through the gap between the lower end surface of the housing 6 and the surface of the work piece 3. In this state, when the spindle is rotated, the bit part 2 drills the work piece 3 in the inert gas atmosphere. As the work is done, it is possible to prevent the molten metal from coming into contact with oxygen in the atmosphere to form an oxide film around the perforations.
또한 본 발명에 따른 지그(10)는 공작물의 형태에 따라 하우징을 변형시켜 사용할 수도 있는데, 예컨대 공작물이 파이프와 같이 원형단면을 갖는 경우에는 상기 하우징(6)의 하부선단에 도 2에 도시된 것과 같이 파이프의 반경과 동일 내지는 다소 작은 반경을 갖도록 반원형 요부(11)를 형성하여 이 요부(11)가 공작물을 완전하게 감싸주도록 하면 된다.In addition, the jig 10 according to the present invention may be used by deforming the housing according to the shape of the workpiece, for example, in the case where the workpiece has a circular cross section such as a pipe, as shown in FIG. 2 at the lower end of the housing 6. Likewise, the semicircular recess 11 may be formed to have a radius that is equal to or slightly smaller than the radius of the pipe so that the recess 11 completely surrounds the workpiece.
그리고 예컨대 공작물의 크기가 하우징(6)의 직경보다 작은 경우에는 이 공작물을 완전하게 감싸면서 덮어줄 수 있는 형상으로 하우징의 하단부 형상을 임의대로 가공하면 되는 바, 상기 하우징(6)의 하단부 구조는 본 발명에서 예로 들어 설명한 것에 국한되지 않고, 공작물의 형상에 따라 여러가지 형태로 변형하여 실시할 수 있는 것으로, 발명의 요지를 벗어나지 않는 범위내에서 폭 넓게 사용할 수 있슴은 물론이다.For example, when the size of the workpiece is smaller than the diameter of the housing 6, the bottom portion of the housing may be arbitrarily processed into a shape that can completely cover and cover the workpiece. The present invention is not limited to the examples described herein, but can be modified and implemented in various forms according to the shape of the workpiece, and can be used widely within the scope of the present invention.
이상 설명한 것과 같이 본 발명 천공작업용 지그에 의하면, 불활성가스를 보호기체로 하여 천공작업을 할 수 있도록 함으로써 용융금속이 대기중의 산소와 접촉하여 공작물에 산화막을 형성시키는 것을 효과적으로 방지하여, 후가공을 하지 않고도 공작물의 품질을 유지할 수 있는 잇점이 있다.As described above, according to the present invention, the drilling jig of the present invention enables the drilling operation using an inert gas as a protective gas, thereby effectively preventing the molten metal from contacting oxygen in the air to form an oxide film on the workpiece, thereby preventing post-processing. The advantage is that the quality of the workpiece can be maintained without it.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019990023506A KR100321468B1 (en) | 1999-06-22 | 1999-06-22 | A jig for Perforation Working |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019990023506A KR100321468B1 (en) | 1999-06-22 | 1999-06-22 | A jig for Perforation Working |
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| KR100321468B1 true KR100321468B1 (en) | 2002-03-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| KR1019990023506A Expired - Fee Related KR100321468B1 (en) | 1999-06-22 | 1999-06-22 | A jig for Perforation Working |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0655402A (en) * | 1992-08-06 | 1994-03-01 | Fuji Heavy Ind Ltd | Cooling dust collection device of machine tool |
| JPH06155029A (en) * | 1992-11-26 | 1994-06-03 | Ishihara Chem Co Ltd | Antioxidation method in stainless steel welding |
| JPH0910943A (en) * | 1995-06-30 | 1997-01-14 | Toshiba Corp | Tig welding method and welding torch therefor |
| JPH10296489A (en) * | 1997-04-23 | 1998-11-10 | Hitachi Ltd | Shield jig |
-
1999
- 1999-06-22 KR KR1019990023506A patent/KR100321468B1/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0655402A (en) * | 1992-08-06 | 1994-03-01 | Fuji Heavy Ind Ltd | Cooling dust collection device of machine tool |
| JPH06155029A (en) * | 1992-11-26 | 1994-06-03 | Ishihara Chem Co Ltd | Antioxidation method in stainless steel welding |
| JPH0910943A (en) * | 1995-06-30 | 1997-01-14 | Toshiba Corp | Tig welding method and welding torch therefor |
| JPH10296489A (en) * | 1997-04-23 | 1998-11-10 | Hitachi Ltd | Shield jig |
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|---|---|
| KR20010003276A (en) | 2001-01-15 |
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