WO1981002119A1 - A flange forming drill means - Google Patents

A flange forming drill means Download PDF

Info

Publication number
WO1981002119A1
WO1981002119A1 PCT/FI1981/000007 FI8100007W WO8102119A1 WO 1981002119 A1 WO1981002119 A1 WO 1981002119A1 FI 8100007 W FI8100007 W FI 8100007W WO 8102119 A1 WO8102119 A1 WO 8102119A1
Authority
WO
WIPO (PCT)
Prior art keywords
locking
drill
shield
flange
forming
Prior art date
Application number
PCT/FI1981/000007
Other languages
French (fr)
Inventor
L Larikka
Original Assignee
Serlachius Oy
L Larikka
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Serlachius Oy, L Larikka filed Critical Serlachius Oy
Priority to DE8181900459T priority Critical patent/DE3163434D1/en
Priority to BR8106695A priority patent/BR8106695A/en
Publication of WO1981002119A1 publication Critical patent/WO1981002119A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B21C37/28—Making tube fittings for connecting pipes, e.g. U-pieces
    • B21C37/29—Making branched pieces, e.g. T-pieces
    • B21C37/292—Forming collars by drawing or pushing a rigid forming tool through an opening in the tube wall
    • 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
    • B21D19/00—Flanging or other edge treatment, e.g. of tubes
    • B21D19/08—Flanging or other edge treatment, e.g. of tubes by single or successive action of pressing tools, e.g. vice jaws
    • B21D19/088—Flanging or other edge treatment, e.g. of tubes by single or successive action of pressing tools, e.g. vice jaws for flanging holes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B51/00—Tools for drilling machines
    • B23B51/08—Drills combined with tool parts or tools for performing additional working
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49428—Gas and water specific plumbing component making
    • Y10T29/49446—Ferrule making or reforming

Definitions

  • a flange fo.rming drill means
  • the present invention relates to a flange forming drill means for drilling a hole through the side of a pipe or the like and dor forming a flange, which encircles the hole, said means comprising a drill rod which is to be mounted on a rotating machine and fitted with a drill bit and associated forming means which, after the hole has been drilled, can be extended down below the hole edges by turning an adjustment member turnably mounted around the drill rod.
  • Such a flange forming drill means is disclosed in US patent 3 592 038. That apparatus has proven itself very useful when a flanged hole is to be formed on the side of pipe e.g. for the connection of a branch pipe.
  • the adjustment member can be locked in various angular positions around the drilling axis.
  • the Finnish patent publication 50843 discloses a locking means, which can b ⁇ manually pressed in radial direction thus releasing the locking for manual screwing of the adjustment member.
  • the object of the invention is to improve said type of drill means, so that said operating trouble and safety risks are overcome .
  • the invention is characterized in that the adjustment member is externally enclosed in a smooth protective shield which is engaged with the adjustment member so that they cannot rotate with respect to each other around the drilling axis, and the drill rod is fitted with a locking member to which the shield and adjustment member can be removably locked in various angular positions around the drilling axis.
  • the locking can be released e.g. by lifting the shield upwards.
  • This can be achieved by using elements secured to th frame of the drill means, said frame comprising e.g. support legs, which engage the work piece, said elements, after the drilling operation with the drill means being further pressed downwards, leaning against the lower surface of the protectiv shield thus lifting the shield upwards.
  • the friction force acting between the support elements and the shield turns simultaneously the shield and the adjustment member resulting in the extension of the forming means down below the edges of the hole.
  • the operation can be automated.
  • fig. 1 shows the device of the invention in vertical section
  • fig. 2 is a plan view of a locking flange which is a part of the invention.
  • fig. 3 is a sectional view taken along the line III-III of figure 1.
  • the drill means comprises a drill rod 1 which can be mounted on a rotating machine and whose lower end comprises a drill bit 4.
  • an adjustment device 2 whos conical lower face has helically pitching guide grooves 5, which receive the gripping extensions 6 at the upper ends of
  • the forming pins 3 extend crosswise in the bores running through the drill rod 1 and drill bit 4 and, by turning the adjustment cone 2 said pins can be extended a .. predetermined distance outside the drill bit 4 jacket or they can be completely retracted within the jacket surface of the drill bit 4. In the latter position the bit 4 is used for drilling a hole through the surface of a pipe 10 and in the former position, i.e. the forming pins 3 extended, a collar flange -11 can be formed by pulling the rotating drill means up from the hole.
  • the adjustment cone 2 as well as the upper ends of the pins 3 are enclosed within an externally smooth protective shield 7.
  • a lug 9 fixed on the internal surface of the shield 7 is engaged with a recess 8 in the rim of the adjustment cone 2, which is how their relative rotation around the drilling axis is eliminated.
  • the adjustment cone 2 turns by turning the protective shield 7.
  • the top of the shield 7 is closed with an externally smooth cover 12 mounted with screws 13 on the bent edge 14 of the shield,7. From the lower face of the cover 12 projects an engagement pin 15 secured to the cover and in engagement with -a. hole 17 in the locking flange 16.
  • the locking flange 16 is rigidly secured to the shaft 1 and has also another hole 18 (fig.
  • the relative axial movement between shield 7 and rod 1 can also be utilized for further automatio of the operation in such a way that the upward movement of th shield 7 relative to the shaft 1 and to the rotating machine body acts on an actuator which switches on an auger screw whi pulls the drill means upwards. Therefore, all the operator ha to do is to actuate the machine and press the hole, the machi will automatically take care of the extension of the forming pins 3 and the initiation of the return feed.
  • the adjustment cone 2 can be locked on the drill rod 1 by means of a shield 7, cover 12 and locking flan

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
  • Drilling Tools (AREA)
  • Peptides Or Proteins (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
  • Drilling And Boring (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Abstract

A flange forming drill means for drilling a hole through the side of a pipe or the like and for forming a hole encircling flange. The drill means is provided with a drill rod (1) mountable on a rotating machine and fitted with a drill bit (4) and associated forming members (3) which, after the hole has been drilled, can be extended down below the edges of the hole by turning an adjustment member (2) fitted around the drill rod. The adjustment member (2) is enclosed in an externally smooth protective shield (7), which is in engagement (8, 9) with the adjustment member (2), so that their relative rotation around the drilling axis is eliminated. To the drill rod (1) is secured a locking means (16) to which the shield (7) and adjustment member (2) can be removably locked in various angular positions around the drilling axis. The locking means comprises a locking flange (16) provided with two holes or recesses (17, 18) defining the terminal positions of locking. In the first terminal locking position the forming means (3) lie completely within the outer face of the drill bit (4) and in the second terminal locking position the forming means (3) extend or project from the drill bit (4) so as to correspond to the desired internal diameter of the flange (11).

Description

A flange fo.rming drill means
The present invention relates to a flange forming drill means for drilling a hole through the side of a pipe or the like and dor forming a flange, which encircles the hole, said means comprising a drill rod which is to be mounted on a rotating machine and fitted with a drill bit and associated forming means which, after the hole has been drilled, can be extended down below the hole edges by turning an adjustment member turnably mounted around the drill rod.
Such a flange forming drill means is disclosed in US patent 3 592 038. That apparatus has proven itself very useful when a flanged hole is to be formed on the side of pipe e.g. for the connection of a branch pipe. For locking the forming members either in the extended flange forming position or in the retracted hole drilling position, it is necessary that the adjustment member can be locked in various angular positions around the drilling axis. For this purpose the Finnish patent publication 50843 discloses a locking means, which can b≤ manually pressed in radial direction thus releasing the locking for manual screwing of the adjustment member. However, such a device is inconvenient to use since one hand must perform two simultaneous crosswise actuating movements, namely pressing the lock in radial direction and turning the adjustment cone 90 . In addition to this inconvenience, the lock means and top ends of the forming pins produce a safety risk, since they project from the adjustment cone and rotate therealong. There is an apparent safety risk, a possibility of injuring the fingers in the forming pins or lock, when the adjustment cone is gripped for the adjustment and the current is accidentally switched on the drill. The risk also exists if the adjustment cone is gripped dura ng so-called post-running of the drill .
The object of the invention is to improve said type of drill means, so that said operating trouble and safety risks are overcome .
OMPI
Λ. WIPO <v For this purpose the invention is characterized in that the adjustment member is externally enclosed in a smooth protective shield which is engaged with the adjustment member so that they cannot rotate with respect to each other around the drilling axis, and the drill rod is fitted with a locking member to which the shield and adjustment member can be removably locked in various angular positions around the drilling axis.
Thus, the locking can be released e.g. by lifting the shield upwards. This can be achieved by using elements secured to th frame of the drill means, said frame comprising e.g. support legs, which engage the work piece, said elements, after the drilling operation with the drill means being further pressed downwards, leaning against the lower surface of the protectiv shield thus lifting the shield upwards. The friction force acting between the support elements and the shield turns simultaneously the shield and the adjustment member resulting in the extension of the forming means down below the edges of the hole. Thus, the operation can be automated.
A preferred embodiment of the invention is described in more detail in the following specification with reference made to the accompanying drawings, in which :
fig. 1 shows the device of the invention in vertical section,
fig. 2 is a plan view of a locking flange which is a part of the invention, and
fig. 3 is a sectional view taken along the line III-III of figure 1.
The drill means comprises a drill rod 1 which can be mounted on a rotating machine and whose lower end comprises a drill bit 4. Around the rod 1 is fitted an adjustment device 2 whos conical lower face has helically pitching guide grooves 5, which receive the gripping extensions 6 at the upper ends of
( Oϊ.lPI _ the forming pins 3. The forming pins 3 extend crosswise in the bores running through the drill rod 1 and drill bit 4 and, by turning the adjustment cone 2 said pins can be extended a .. predetermined distance outside the drill bit 4 jacket or they can be completely retracted within the jacket surface of the drill bit 4. In the latter position the bit 4 is used for drilling a hole through the surface of a pipe 10 and in the former position, i.e. the forming pins 3 extended, a collar flange -11 can be formed by pulling the rotating drill means up from the hole.
According to the invention, the adjustment cone 2 as well as the upper ends of the pins 3 are enclosed within an externally smooth protective shield 7. A lug 9 fixed on the internal surface of the shield 7 is engaged with a recess 8 in the rim of the adjustment cone 2, which is how their relative rotation around the drilling axis is eliminated. Thus, the adjustment cone 2 turns by turning the protective shield 7. The top of the shield 7 is closed with an externally smooth cover 12 mounted with screws 13 on the bent edge 14 of the shield,7. From the lower face of the cover 12 projects an engagement pin 15 secured to the cover and in engagement with -a. hole 17 in the locking flange 16. Thus, the forming pins 3 are in the extended position. The locking flange 16 is rigidly secured to the shaft 1 and has also another hole 18 (fig. 2) at a certain angle from the hole 17. Between the holes 17 and 18 extends a groove 19 in which the end of pin 15 can run between its terminal positions defined by the holes 17 and 18. A spring plate 20 urges the cover 12 together with the shield 7 down¬ wards, so that the pin 15 cannot get loose from the hole 17 or 18 by itselt. When the forming pins 3 are to be moved from the extended position, presented by the solid line, to the retracted position, shown by the broken lines, the shield 7 is lifted upwards whereby the end of the pin 15 is released from the hole 17 and the shield is turned until the end of the pin 15 reaches the hole 18. In the opposite direction this can be done with the drill means rotating and all there must be done is to lift the shield 7, whereby a friction force applied
OMPI
Λ. WIPO - thereto automatically effects the turning movement from one position to the other. The operation can be automated in such a manner that stopper elements 22 are secured to supporting legs 21 connected with the rotating machine body, which elements, after the hole has been drilled and the drill means is being urged downwards, respond to the conical lower face of the shield 7 and simultaneously effect the uplifting of the shield 7 or release of the locking and also, by the actio of the friction, the deceleration of its rotational speed as compared to the drill rod 1 and to the locking flange secured thereto, whereby the forming pins 3 extend out. down below the hole edges.-In practice, this happens immediately after the hole is drilled through and the face of the shield 7 impinges against the elements 22. The relative axial movement between shield 7 and rod 1 can also be utilized for further automatio of the operation in such a way that the upward movement of th shield 7 relative to the shaft 1 and to the rotating machine body acts on an actuator which switches on an auger screw whi pulls the drill means upwards. Therefore, all the operator ha to do is to actuate the machine and press the hole, the machi will automatically take care of the extension of the forming pins 3 and the initiation of the return feed.
As can be seen, the adjustment cone 2 can be locked on the drill rod 1 by means of a shield 7, cover 12 and locking flan
16. Thus, there is such a special feature to the invention that, by loosening screws 13 and by turning the protective shield 14 and cover 12 relative to each other, it is possible to adjust the distance which the forming pins 3 are extended in one terminal locking position with the pin 15 in the hole
17. Thus, it is possible to set any desired diameter for the flange 11 in the device. If desired, it is naturally possible to make intermediate holes in the groove 19 between the terminal holes 17 and 18 for various flange dimensions. The possibility of turning the sections 7 and 12 relative to each other is particularly intended for adjustment of the toleranc of a predetermined flange dimension, whereby the boundary poi 23 between the section 7 and 12 can be provided with a nonius type of scale. f O PI

Claims

Claims
1. A flange forming drill means -for ■drilling a hole through the side of a pipe or the like and for forming a hole encircling flange, said means being provided with a drill rod (1) mo ntable on a rotating machine and fitted with a drill bit (4) and accociated forming members (3) which, after the hole has been drilled, can be extended down below the edges of the hole by turning an adjustment member (2) fitted around the drill rod, c h a r a c t e r i z e d in that the adjustment member (2) is enclosed in an externally smooth protective shield (7), which is in engagement (8, 9) with the adjustment member (2) , so that their relative rotation around the drilling axis is eliminated, and that to the drill rod (1) is secured a locking means (16) to which the shield (7) and adjustment member (2) can be removably locked in various angular positions around the drilling axis.
2. A flange forming drill means according to claim 1, c h a r a c t e r i z e d in that the locking means comprises a locking flange (16) provided with two holes or recesses (17, 18) defining the terminal positions of locking, arid that in the first terminal locking position the forming means (3) lie completely within the outer face of the drill bit (4) and in the second terminal locking position the forming means (3) extend or project from the drill bit (4) so as to correspond to the desired internal diameter of the flange (11) .
3. A flange forming drill means according to claim 1, c h a r a c t e r i z e d in that locking can be released by lifting the shield (7) upwards.
4. A flange forming drill means according to claims 2 and 3, c h a r a c t e r i z e d in that the first and second terminal position of locking are so selected that, during uplifting of the shield (7) rotating in the drilling direction, the frictional force applied thereto turns , after the locking is released, the shield (7) tcgether with its adjustment member
OMPI Λ. WIPO - (2) from the first terminal locking position to the other.
5. A flange forming drill means according to cl'aim 2, c h a r a c t e r i z e d in that the shield (7) is topped with an externally smooth cover (12) whose lower surface is provided with a projecting engagement pin (15) , which cooperates with locking holes (17, 18) made on the locking flange (16) and defining the terminal positions of locking,
6. A flange forming drill means according to claim 5, c h a r a c t e r i z e d in that the cover (12) and shield
(7) can be mounted (13, 14) on each other in various relative angular positions around the drilling axis.
7. A flange forming drill means according to claim 1, c h a r a c t e r i z e d in that the internal face of the shield (7) is provided with a lug (9) received in a recess
(8) in the rim of the conically-shaped adjustment member (2) .
8. A flange forming drill means according to claim 1, c h a r a c t e r i z e d in that the shield (7) has partly frusto-conical and partly cylindrical jacket surface.
9. A flange forming drill means according to claim 4, c h a r a c t e r i z e d in that supporting legs (21) of the drill means are provided with stopper elements (22) again which the shield (7) impinges when the drill is urged down¬ wards and which effect the uplifting of the shield (7) and by frictional action decelerate it with respect to the rotating drill rod (1) , whereby the locking shifts from the first terminal position to the other.
O PI Λ, IPO
PCT/FI1981/000007 1980-01-30 1981-01-29 A flange forming drill means WO1981002119A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE8181900459T DE3163434D1 (en) 1980-01-30 1981-01-29 A flange forming drill means
BR8106695A BR8106695A (en) 1980-01-30 1981-01-29 FLANGE FORMING DRILL

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI800279 1980-01-30
FI800279A FI800279A (en) 1980-01-30 1980-01-30 FLAENSBORRANORDNING

Publications (1)

Publication Number Publication Date
WO1981002119A1 true WO1981002119A1 (en) 1981-08-06

Family

ID=8513219

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI1981/000007 WO1981002119A1 (en) 1980-01-30 1981-01-29 A flange forming drill means

Country Status (9)

Country Link
US (1) US4413485A (en)
EP (1) EP0044336B1 (en)
JP (1) JPH0379093B2 (en)
AT (1) ATE7366T1 (en)
AU (1) AU6774481A (en)
BR (1) BR8106695A (en)
DE (1) DE3163434D1 (en)
FI (1) FI800279A (en)
WO (1) WO1981002119A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2589764A1 (en) * 1985-10-04 1987-05-15 Serlachius Oy TOOL POINT AND ITS INSTRUCTIONS FOR USE AND TOOL FOR PUNCHING A HOLE AND FORMING A NECKLACE INTO A SHEET.
CN105033007A (en) * 2015-08-24 2015-11-11 鞍山松意机器人制造有限公司 Full-automatic pipe edge turning device and edge turning machining technology

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4998332A (en) * 1989-02-06 1991-03-12 Utica Enterprises, Inc. Method for body panel attachment
JPH0957556A (en) * 1995-06-05 1997-03-04 Enami Seiki:Kk Branch pipe forming tool, and forming method for branch pipe of metallic pipe using the tool
US6000263A (en) * 1995-06-05 1999-12-14 Enami Seiki Mfg. Co., Ltd. Branch pipe forming tool and method of forming branch pipe on metal tube with the tool
KR100640227B1 (en) 2005-10-13 2006-11-01 주마로 Burring machine of burring tool for piping process
KR101064578B1 (en) 2009-07-01 2011-09-15 곽경숙 metal pipe of tubulate manufacture apparatus and manufacture method
EP3144075A1 (en) * 2015-09-18 2017-03-22 Transfluid Maschinenbau GmbH Internal roller mandrel for forming a collar in a hollow element
EP3431732B1 (en) * 2017-07-21 2020-04-22 Bosal Emission Control Systems NV Method for forming a collar in a muffler housing
DE112019003503T5 (en) * 2018-07-11 2021-11-25 Nippon Steel Corporation AUTOMOTIVE STRUCTURAL COMPONENT AND VEHICLE BODY

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3592038A (en) * 1967-07-11 1971-07-13 Leo Larikka Tool and/or machine tool to work a hole and its flange into a wall for a branch pipe to be attached to the wall
US3844149A (en) * 1972-12-04 1974-10-29 Dako Werkzeugfab Kotthaus D Kg Pipe necking apparatus
DE2434498A1 (en) * 1973-07-19 1975-02-06 Maurice Granger DEVICE FOR THE FORMATION OF PITCHES WITH STUFFED EDGES OR ROLLS ON PIPES
FI50843B (en) * 1973-06-28 1976-04-30 Leo Larikka

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3714808A (en) * 1968-07-11 1973-02-06 L Larikka Means for forming a hole in a tube or pipe wall and deforming the edge of the hole into an upstanding flange
FI58879C (en) * 1973-05-30 1981-05-11 Leo Larikka AUTOMATIC FLAENSBORRANORDNING

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3592038A (en) * 1967-07-11 1971-07-13 Leo Larikka Tool and/or machine tool to work a hole and its flange into a wall for a branch pipe to be attached to the wall
US3844149A (en) * 1972-12-04 1974-10-29 Dako Werkzeugfab Kotthaus D Kg Pipe necking apparatus
FI50843B (en) * 1973-06-28 1976-04-30 Leo Larikka
DE2434498A1 (en) * 1973-07-19 1975-02-06 Maurice Granger DEVICE FOR THE FORMATION OF PITCHES WITH STUFFED EDGES OR ROLLS ON PIPES

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2589764A1 (en) * 1985-10-04 1987-05-15 Serlachius Oy TOOL POINT AND ITS INSTRUCTIONS FOR USE AND TOOL FOR PUNCHING A HOLE AND FORMING A NECKLACE INTO A SHEET.
CN105033007A (en) * 2015-08-24 2015-11-11 鞍山松意机器人制造有限公司 Full-automatic pipe edge turning device and edge turning machining technology

Also Published As

Publication number Publication date
JPH0379093B2 (en) 1991-12-17
ATE7366T1 (en) 1984-05-15
DE3163434D1 (en) 1984-06-14
EP0044336B1 (en) 1984-05-09
BR8106695A (en) 1981-12-22
FI800279A (en) 1981-07-31
EP0044336A1 (en) 1982-01-27
US4413485A (en) 1983-11-08
JPS57500008A (en) 1982-01-07
AU6774481A (en) 1981-08-17

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