US3768298A - Swaging apparatus - Google Patents

Swaging apparatus Download PDF

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Publication number
US3768298A
US3768298A US00199576A US3768298DA US3768298A US 3768298 A US3768298 A US 3768298A US 00199576 A US00199576 A US 00199576A US 3768298D A US3768298D A US 3768298DA US 3768298 A US3768298 A US 3768298A
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US
United States
Prior art keywords
swaging
fingers
aperture
plates
apertures
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 - Lifetime
Application number
US00199576A
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English (en)
Inventor
Jones M Olive
D Randall
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BTR Industries Ltd
Original Assignee
BTR Industries Ltd
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 BTR Industries Ltd filed Critical BTR Industries Ltd
Application granted granted Critical
Publication of US3768298A publication Critical patent/US3768298A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • 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
    • B21D39/04—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes with tubes; of tubes with rods
    • B21D39/046—Connecting tubes to tube-like fittings
    • 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
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/5367—Coupling to conduit

Definitions

  • ABSTRACT Swaging apparatus which includes a swaging member having a plurality of radially disposed swaging fingers with resilient means located between adajacent fingers, and compresssion means to force the fingers radially inwardly so that the inner ends of the fingers may swage a workpiece located therebetween.
  • the resilient means may comprise elastomeric blocks each bonded between adjacent fingers.
  • the outer surface of each finger may have two portions tapered in opposite senses, and the swaging member may be located between two plates each having an aperture tapered in the same sense as the respective adjacent tapered portion, so that the fingers are compressed radially inwardly as the plates are moved towards one another.
  • the invention relates to swaging apparatus and provides swaging apparatus including a swaging member comprising a plurality of radially disposed swaging fingers the inner ends of which define a space for receiving a workpiece to be swaged and resilient means arranged between adjacent swaging fingers to urge the fingers radially outwardly which apparatus further ineludes compression means to force the fingers radially inwardly against the action of the resilient means, so that the inner ends of the fingers may effect swaging of the workpiece within said space.
  • the resilient means may comprise a plurality of blocks of elastomeric material each being bonded between adjacent swaging fingers.
  • Each swaging finger may have an outer surface portion which lies on a generally conical surface coaxial with the swaging member, and the compression means may comprise a structure surrounding said outer surface portions, the structure and surface portions being capable of relative axial movement whereby engagement of the structure with said surface portions during said movement forces the swaging fingers radially inwards.
  • the compression structure may have a generally conical aperture formed therein and shaped so that the smaller diameter part of the surface portions may enter the larger diameter part of the aperture, there being means to cause relative axial movement between the swaging member and the compression structure to force the swaging member into the aperture thereby moving the fingers radially inwardly.
  • the assembly comprising said outer surface portions and said compression structure may be duplicated at axially spaced locations on the swaging member, the said conical surfaces of the two assemblies tapering in opposite directions whereby the two I compression structures move in opposite axial directions to force the swaging fingers radially inwardly.
  • the two conical surfaces may taper away from one another so that the swaging fingers are forced radially inwardly by axial movement of the compression structures towards one another.
  • the swaging member may be located and supported wholly by the two compression structures.
  • FIG. 1 is a part sectional, part elevation viewof the swaging apparatus
  • FIG. 2 is an end view of the apparatus of FIG. 1 with the swaging member removed for clarity;
  • FIG. 3 is an end view on a reducedscale of the ram head of the apparatus of FIG. 1;
  • FIG. 4 is an elevation of the ram head of FIG. 3;
  • FIG. 5 is an enlarged view of part of FIG. 3;.
  • FIG. 6 is a section view on line 6-60f FIG. 5;
  • FIG. 7 is an end view onthe swaging member.
  • the swaging apparatus shown in the drawing comprises a mainframe 10 having two generally triangular end plates 11 and 12 held in spaced apart relationship by means of three shouldered rods 14. Screw threads are provided on both ends of each rod 14, one end screwing directly into the left hand (in FIG. 1) end plate 11, the right hand end of rod (14) passing through the right hand end plate 12. Nuts 15 are threaded on the right hand end of each rod 14 to hold the right hand end plate against the shoulders on the rods.
  • the left hand end plate 11 (FIG. 1) has an aperture 16 formed therein, the aperture being generally conical in shape and tapering outwardly towards the other end plate 12.
  • the wall of the aperture has eight equi-spaced grooves 17 formed therein, for a purpose to be described below.
  • An annular hydraulic ram 18 is attached to the right hand end plate 12 and extends within the frame 10 towards the left hand end plate 11.
  • the piston 40 of the ram is attached to a ram head 19 by means of a rod 38 which is threaded both ends, the left hand end (FIG. I) of which attaches the ram head 19 to the piston 40, and the right hand end incorporates a length stop 39.
  • the ram head 19 is urged to the left by means of hydraulic pressure introduced into he ram between an annular U seal 41 on the piston 40 and the stationary end 42 of the ram 18.
  • the ram head 19 is located within the frame 10 by the three rods 14, there being sufficient clearance between the rods 14 and head 19 to permit relative sliding movement.
  • the head 19 is held against rotation by means of two lugs 23 welded to the head and fitting with clearance one each side of the uppermost rod 14.
  • the ram head 19 comprises a first circular plate 24 into which the rod 38 is threaded, welded to a part tubular member 24a.
  • a second circular plate 25 is welded to the open end of the member 24, and is provided with a generally conical aperture 26 therein, coaxial with the aperture 16.
  • the aperture 26 tapers outwardly towards the left hand end plate 11, and its wall has eight equi-spaced grooves 21 formed therein so that the apertures 16 and 26 are opposed and similar.
  • a swaging member 30 is held between the plates 11 and 25 and is shown in greater detail in FIG. 7.
  • the swaging member 30 comprises eight radially extending swaging fingers 31 each bonded to and held spaced from the next adjacent swaging finger by rubber blocks 32.
  • the inwardly directed faces 33 of the fingers are shaped such that they form a cylindrical bore 34 in the member, the inner end of each finger being spaced from the next adjacent finger.
  • the radially outwardly directed face 35 of each finger 31 is provided with a central portion 36 (FIG.
  • each finger stands proud of the rubber blocks to which the finger is bonded.
  • the outer diameter of the ends of the swaging member are such that the ends of the member will just enter the apertures 16 and 26 with the outwardly directed faces 35 fitting within the grooves 17 and 27.
  • the swaging member 30 is located as just described and an article to be swaged inserted within the bore 34.
  • the hydraulic ram is pressurised by means (not shown) to move the ram head 19 to the left (FIG. 1) so that the separation between the plates 11 and 25 is decreased.
  • the outwardly directed faces 35 of the fingers 31 are slid along the grooves 17 and 27 provided in the walls of the apertures 16 and 26, whereby the fingers are moved radially inwardly, thus reducing the diameter of the bore 34 and swaging the article located therein.
  • the ram head 19 is then withdrawn to the right and the rubber blocks 32 urge the fingers 31 outwardly to release the swaged article.
  • the ram head 19 is stopped when the swaging member is just located in the aperture in the plates 11 and 25.
  • the swaging member 30 may be removed easily from the machine by fully withdrawing the head 19, as shown in FIG. 1, and replaced by a further member.
  • the further member may have a bore of a different diameter, to accept articles to be swaged of a different size.
  • the rubber blocks 32 may be replaced by blocks of a thermoplastic material.
  • a modified swaging member (not shown), comprises eight swagin g fingers held in a spaced apart relationship by means of spring elements arranged to permit movement of the fingers radially and to urge them outwardly.
  • the spring elements may comprise, for example, a plurality of spring blades, each blade having one end attached to a finger and the other end to the next adjacent finger.
  • the end stop 39 serves to limit the movement of the ram head 19 to the left (in FIG. 1) whereby the degree of swaging of an article in the bore 34 may be adjusted and also repeated for a succession of articles.
  • Swaging apparatus comprising a frame, compression means comprising two plates each having a conical aperture formed therein, the plates being mounted on the frame with the apertures co-axial and tapering outwardly towards one another and mounted for relative axial sliding movement, a swaging member comprising a plurality of radially disposed swaging fingers the inner ends of which define a space for receiving a workpiece to be swaged and a plurality of blocks of elastomeric material each block being bonded between adjacent swaging fingers to urge the fingers radially outwardly, the swaging member being located between the apertures in the two plates and the other surface of each swaging finger having two tapered portions adjacent the two apertures respectively, the tapered portions being tapered in the same sense as the respective adjacent aperture, and means to effect relative sliding movement of the two plates whereby as the plates are moved towards one another the swaging fingers are forced radially inwardly against the action of the elastomeric material so that the inner ends of the swaging fingers
  • Swaging apparatus comprising a support structure, a frusto-conical aperture formed in said structure, a single swaging member comprising a plurality of radially disposed swaging fingers the inner ends of which define a space for receiving a workpiece to be swaged, a plurality of blocks of resilient material equal in number to said plurality of swaging fingers, one of said blocks being situated between and bonded to each pair of adjacent fingers to interconnect the fingers and to urge the fingers radially outwardly, one end of the member being engageable in said aperture in the support structure and the outer surface of each swaging finger having a tapered portion complementary to the frusto-conical surface of said aperture, and means to move the structure and the swaging member when engaged in said aperture relative to one another along the axis of said aperture, whereby the swaging fingers are forced radially inwardly against the action of the resilient elements so that the inner ends of the swaging fingers may effect swaging of a workpiece within said
  • Swaging apparatus as claimed in claim 2 wherein said means to move the structure and the member relative to one another comprise a second support structure having a frusto-conical aperture coaxial with said aperture in the first support structure, said apertures being tapered away from one another and the outer surfaces of the swaging fingers each having a further tapered portion complementary to the frusto-conical surface of the aperture in said second structure, means being provided to cause relative movement of the structures towards one another along the aligned axes of said apertures to force the swaging fingers radially inwardly.
  • Swaging apparatus as claimed in claim 2 in which the swaging fingers of the swaging element engage in grooves provided at circumferentially spaced locations in said aperture.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
  • Jigs For Machine Tools (AREA)
US00199576A 1970-11-19 1971-11-17 Swaging apparatus Expired - Lifetime US3768298A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5511770 1970-11-19

Publications (1)

Publication Number Publication Date
US3768298A true US3768298A (en) 1973-10-30

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Application Number Title Priority Date Filing Date
US00199576A Expired - Lifetime US3768298A (en) 1970-11-19 1971-11-17 Swaging apparatus

Country Status (4)

Country Link
US (1) US3768298A (enrdf_load_stackoverflow)
DE (1) DE2157274A1 (enrdf_load_stackoverflow)
FR (1) FR2115189B1 (enrdf_load_stackoverflow)
GB (1) GB1342578A (enrdf_load_stackoverflow)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4034592A (en) * 1976-03-31 1977-07-12 The Weatherhead Company Crimping machine with automatic hinge open pushers
US4043173A (en) * 1974-01-21 1977-08-23 Politechnika Warszawska Method of shaping the outer surfaces of objects consisting of deformable materials and device for the application of the method
DE2907975A1 (de) * 1978-03-02 1979-09-06 Ngk Insulators Ltd Kunstharzisolator und verfahren zur herstellung desselben
WO1981003456A1 (en) * 1980-06-09 1981-12-10 J Lillbacka A device for pressing tight hose couplings
US4331019A (en) * 1979-10-12 1982-05-25 Andrew Hydraulics International Limited Device for crimping tubular elements
WO1991015331A1 (en) * 1990-04-06 1991-10-17 Lokring Corporation Hydraulic assembly tool with improved load bearing arrangement for tube fittings
US5235841A (en) * 1988-01-19 1993-08-17 The Gates Rubber Company Crimping apparatus
US5253506A (en) * 1988-01-19 1993-10-19 The Gates Rubber Company Crimping apparatus
US6446321B1 (en) * 1998-12-08 2002-09-10 Itp Method for producing pipes to be connected in a double-wall piping system and implementing machine
US20030230128A1 (en) * 2000-07-19 2003-12-18 Betaswage Pty. Ltd. Hydraulic swage press
US6718814B2 (en) * 2001-04-06 2004-04-13 Computer Age Engineering Swaging die assembly having compressible spacing element
US20130186869A1 (en) * 2012-01-23 2013-07-25 Csx Transportation Coupler installation device
CN116078989A (zh) * 2023-01-03 2023-05-09 合肥工业大学 一种双性能盘热模锻-差温压扭复合成形方法及模具工装

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108057789B (zh) * 2016-11-08 2019-10-22 大陆汽车电子(芜湖)有限公司 封边装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3455140A (en) * 1967-10-25 1969-07-15 Anchor Coupling Co Inc Tool with wedge-operated jaw segments
US3461710A (en) * 1967-12-28 1969-08-19 Grotnes Machine Works Inc Methods and apparatus for shrink forming metal articles
US3579794A (en) * 1969-10-03 1971-05-25 Jonathan S Powell Means for securing couplings to pipe
US3606789A (en) * 1969-04-09 1971-09-21 Sigma Lutin Apparatus for manufacturing a pump spindle

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3455140A (en) * 1967-10-25 1969-07-15 Anchor Coupling Co Inc Tool with wedge-operated jaw segments
US3461710A (en) * 1967-12-28 1969-08-19 Grotnes Machine Works Inc Methods and apparatus for shrink forming metal articles
US3606789A (en) * 1969-04-09 1971-09-21 Sigma Lutin Apparatus for manufacturing a pump spindle
US3579794A (en) * 1969-10-03 1971-05-25 Jonathan S Powell Means for securing couplings to pipe

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4043173A (en) * 1974-01-21 1977-08-23 Politechnika Warszawska Method of shaping the outer surfaces of objects consisting of deformable materials and device for the application of the method
US4034592A (en) * 1976-03-31 1977-07-12 The Weatherhead Company Crimping machine with automatic hinge open pushers
DE2907975A1 (de) * 1978-03-02 1979-09-06 Ngk Insulators Ltd Kunstharzisolator und verfahren zur herstellung desselben
US4331019A (en) * 1979-10-12 1982-05-25 Andrew Hydraulics International Limited Device for crimping tubular elements
WO1981003456A1 (en) * 1980-06-09 1981-12-10 J Lillbacka A device for pressing tight hose couplings
US5235841A (en) * 1988-01-19 1993-08-17 The Gates Rubber Company Crimping apparatus
US5253506A (en) * 1988-01-19 1993-10-19 The Gates Rubber Company Crimping apparatus
WO1991015331A1 (en) * 1990-04-06 1991-10-17 Lokring Corporation Hydraulic assembly tool with improved load bearing arrangement for tube fittings
US6446321B1 (en) * 1998-12-08 2002-09-10 Itp Method for producing pipes to be connected in a double-wall piping system and implementing machine
US20030230128A1 (en) * 2000-07-19 2003-12-18 Betaswage Pty. Ltd. Hydraulic swage press
US6857305B2 (en) * 2000-07-19 2005-02-22 Betaswage Pty. Ltd. Hydraulic swage press
JP4837876B2 (ja) * 2000-07-19 2011-12-14 ベータスウェイジ ピーティーワイ リミテッド 液圧式スエージプレス
US6718814B2 (en) * 2001-04-06 2004-04-13 Computer Age Engineering Swaging die assembly having compressible spacing element
US20130186869A1 (en) * 2012-01-23 2013-07-25 Csx Transportation Coupler installation device
CN116078989A (zh) * 2023-01-03 2023-05-09 合肥工业大学 一种双性能盘热模锻-差温压扭复合成形方法及模具工装

Also Published As

Publication number Publication date
GB1342578A (en) 1974-01-03
FR2115189B1 (enrdf_load_stackoverflow) 1976-02-13
DE2157274A1 (de) 1972-07-27
FR2115189A1 (enrdf_load_stackoverflow) 1972-07-07

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