US3564887A - Apparatus for rolling fins on nonrotating tubes or rods - Google Patents

Apparatus for rolling fins on nonrotating tubes or rods Download PDF

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Publication number
US3564887A
US3564887A US755349A US3564887DA US3564887A US 3564887 A US3564887 A US 3564887A US 755349 A US755349 A US 755349A US 3564887D A US3564887D A US 3564887DA US 3564887 A US3564887 A US 3564887A
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US
United States
Prior art keywords
finning
rotation
rolls
rotary member
tube
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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
US755349A
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English (en)
Inventor
Arthur H Novak
Klaus K Rieger
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.)
Bank of Nova Scotia
Wolverine Tube Inc
Universal Oil Products Co
Original Assignee
Universal Oil Products Co
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Publication of US3564887A publication Critical patent/US3564887A/en
Assigned to WOLVERINE TUBE, INC., A DE. CORP. reassignment WOLVERINE TUBE, INC., A DE. CORP. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: UOP INC.,
Assigned to BANK OF NOVA SCOTIA, THE reassignment BANK OF NOVA SCOTIA, THE ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: WOLVERINE ACQUISITION CORP. A CORP. OF DE
Assigned to WOLVERINE ACQUISITION CORP., A DE CORP reassignment WOLVERINE ACQUISITION CORP., A DE CORP ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: WOLVERINE TUBE, INC.,
Assigned to WOLVERINE TUBE, INC., A CORP. OF AL reassignment WOLVERINE TUBE, INC., A CORP. OF AL CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: WOLVERINE ACQUISITION CORP.
Anticipated expiration legal-status Critical
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
    • 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
    • B21C37/20—Making helical or similar guides in or on tubes without removing material, e.g. by drawing same over mandrels, by pushing same through dies ; Making tubes with angled walls, ribbed tubes and tubes with decorated walls
    • B21C37/207—Making helical or similar guides in or on tubes without removing material, e.g. by drawing same over mandrels, by pushing same through dies ; Making tubes with angled walls, ribbed tubes and tubes with decorated walls with helical guides

Definitions

  • the fnning rolls may be moved radially into and out of operative position while the machine is running.
  • Special lubricating passages are provided in the rotating structure.
  • a n rolling machine including an input tube into which tubing or rod to be provided with fins is advanced.
  • the input tube has a portion constituting a sun gear and is connected to means for effecting accurately adjusted slow rotation in either direction.
  • the machine includes rotary structure adapted to be driven at substantial speeds including a plurality of arbors adapted to support finning discs or rolls thereon.
  • the arbors are independently mounted on the rotating structure for substantially radial adjustment between inwardly disposed positions in which the nning discs or rolls engage the work piece, and outward positions in which the peripheries of the fnning discs are clear of the work piece.
  • Means are provided for effecting substantial radial in and out movement of the nning tools during continued rotation of the rotating structure and during advance of tubular or rod-like work pieces, to provide for initiation and termination of a nning operation intermediate the ends of the work piece.
  • the means for mounting the arbors for radial adjustment comprises pivoted brackets and a camming device movable generally parallel to the axis of advance of the work piece to force the inning tool arbors inwardly.
  • Outward movement of the arbors to idle position may depend on centrifugal force developed by rotation of the rotary structure or special resilient means, or a combination of both.
  • FIGS. 1A and 1B together constitute a vertical section through the fin rolling apparatus, with some parts rotationally displaced for clarity, the sections designated A, B, C, and D being taken on section lines correspondingly designated in FIGS. 11, 12, 13 and 3 respectively.
  • FIG. 2 is a composite longitudinal sectional view, the portion 2A of which is a sectional view on the line 2A 2A, FIG. 14; and the portion 2B of which is a sectional view on the section line ZB-ZB, FIG. 14.
  • FIG. 3 is an end view of the apparatus.
  • FIG. 4 is a sectional view on the line 4 4, FIG. 1B.
  • FIG. 5 is a sectional view on the line 5 5, FIG. 1A.
  • FIG. 6 is a sectional 'View on the line 6 6, FIG. 1A.
  • FIG. 7 is a sectional view on the line 7 7, FIG. 1A.
  • FIG. 8 is a sectional view on the line 8 8, FIGS. 1A and 1B.
  • FIG. 9 is a sectional view on the line 9 9, FIG. 1B.
  • FIG. l0 is a sectional view on the line 10-10, FIG. 1B.
  • FIG. 11 is a sectional view on the line 11-11, FIG. 1B.
  • FIG. 12 is a sectional view on the line 12-12, FIG. 1B.
  • FIG. 13 is a composite sectional view, the portion 13A being taken on the line 13A-ISA, FIG. 4; the portion 13B being taken on the lines 13B-13B, FIG. 4; and the portion 13C being taken on the line 13C-13C, FIG. 4.
  • FIG. 14 is a diagrammatic View illustrating the arrangement of gearing, looking in the direction of the arrow 14, FIG. 1B.
  • the tube or rod Iinning machine comprises a stationary base 10 having bearing stands 12, 14, 16 and 18, each of which is provided with bearing structure indicated generally at 20. There is also provided a stand 22 provided with a bearing structure indicated generally at 2-4 which supports an elongated work inlet tube 26 for rotation.
  • the tube 26 is splined as indicated at 28 and is connected to drive means indicated diagrammatically at 30 which is accurately adjustable as to speed so as to drive the tube at an accurately controlled forward or reverse speed as required by conditions subsequently to be described.
  • the rotary structure includes a drive pulley 32 adapted to be driven by a belt 34 at substantial speeds. It will ibe observed that the pulley 32 is keyed to a first rotary member 36 which is supported in bearings 20 provided in the pedestal or stand 12 at one end and which has a reduced end portion 38 which is received within a generally annular second rotary member 40. 'Ihe rotary member 40 has a reduced end portion 42 extending into a substantially elongated rotary member 44. The forward or inner end of the tube 26 extends through rotary members 36 and 40 and into the end of the elongated third rotary member 44. A bearing 46 is provided intermediate the tube 26 and the end of the rotary member 44.
  • the forward end of the tube 26 is enlarged as indicated and has external gear teeth formed thereon as indicated forming a sun gear 50 for the purpose of driving a planetary transmission, subsequently to be described.
  • a fourth rotary member 54 and a fifth rotary member 56 Connected to the forward end of the third rotary member 44 (the right hand end as seen in FIGS. 1A and 1B) is a fourth rotary member 54 and a fifth rotary member 56.
  • a sixth rotary member 58 is connected to the fifth rotary member 56, the members ⁇ 44, 54, 56 and 58 al1 being intertted by annular rabbet connections indicated at 60 in FIG. 1B.
  • These parts are assembled together and are interconnected to the rotary member 40 by a plurality of assembly rods 62 having threaded ends 64 threaded into tapped openings in the second rotary member 40.
  • the members are suitably doweled together as indicated at 66.
  • the members are provided with matching oil passages 68'.
  • the forward end of the sixth rotary member 58 has a recess 74 which receives the end of a fnning head 76, the fnning head being driven by the front or sixth rotary -member 58 by a drive key 78.
  • the bearing 20 carried by the stand 16 supports the forward end of the rotary member 58 and the forward end of the nning head is supported by bearing structure 20 carried by the front stand 18.
  • the fnning devices 80 comprise brackets 82 pivoted to the fnning head 76 by pivot shafts 84. Brackets 82 have tubular portions 86 in which are mounted shafts 487 of arbors 88. The arbors 88 at their outer ends are adapted to carry inning rolls ⁇ 90 ⁇ in the form of a multiplicity of nning discs as is well understood in the art.
  • the shaft 87 has its inner end portion 92 extending into a universal drive unit 94 through which it is driven from a shaft constituting the output of planetary gearing which will subsequently be described.
  • Means are provided for effecting substantially radially inward and outward movement of the nning tools 90 so as to move the finning discs carried by the tools into the advancing tubular or rod-like work piece and to withdraw or permit outward displacement of the linning tool while the machine is in operation.
  • This permits a length of unfinned tube for example, to be advanced axially through the finning head without formation of tins thereon.
  • fin formation is initiated by simultaneously camming the firming tools inwardly while the finning head continues its rotation about the axis of the tube.
  • cam blocks 96 having inclined camming surfaces 98 engageable by cam- -ming rollers 100 mounted on a shaft 102 extending between ears 104 carried by a camming ring 106 which is longitudinally slidable from the position shown in full lines in FIG. 1B leftward to the position indicated in dotted lines in the figure.
  • the ring 106 carries the inner race 108 of the ball bearing 20 intermediate the stands 16 and 18, and the outer race 110 is carried by a support 112 having laterally extending ears 114 connected to piston and cylinder devices indicated generally at 116 fixedly mounted on posts 118 extending upwardly from the base 10.
  • piston and cylinder devices indicated generally at 116 fixedly mounted on posts 118 extending upwardly from the base 10.
  • the support 112 is shifted axially of the machine, carrying the rotatable ring 106 therewith.
  • the roller 100 acting against the inclined cam surface 98 will cam the tubular portions 86 of the brackets inwardly to finning position. Since the bearings intermediate the races 108 and 110 ⁇ provide for free rotation of the ring 106, the rollers 100 revolve with the cams 96 and the radial position of the firming devices 80 may be changed during continued operation of the machine.
  • means are provided to correspondingly limit the axial movement of the support 112 and this means constitutes an abutment 120 carried ⁇ by the nning head 76, movable in an axially extending slot 122 provided in the ring 106.
  • means are provided for revolving the linning devices about the axis of the tubing and also for effecting powered drive rotation of the fmning discs 90.
  • the speed of rotation of the finning rolls or discs 90 is properly correlated to the speed of their revolution in orbital path about the aXiS Of the tubing, fins will be produced on the tubing and the tubing will be advanced axially without imparting any rotation whatsoever to the tubing.
  • This relationship is however a delicate one and requires accurately controlled means for effecting changes in the relative speed of rotation and revolution of the nning tools or discs.
  • This means comprises a drive means for the shaft 26, the inner end of which is formed with teeth to constitute a sun gear at 50.
  • FIG. 2 there is shown a simplified construction in which the various gears are illustrated as rotationally displaced to provide a clear picture of the drive between the various gears.
  • This figure may be compared with IFIG. 14.
  • the sun gear 50 which for the time being may be considered as stationary, is in mesh with a plurality, preferably three, planet pinions 124 formed on an elongated pinion member 125.
  • the pinions 124 have reduced ends 126 journaled within appropriately formed recesses 128 in the third rotary member 44.
  • Formed integrally with the pinion 124 is a second pinion 130 and beyond the pinion 130 the part is reduced as indicated at 132 and is journaled within the fourth rotary member 54.
  • Elongated double pinion members 134 are provided each having pinion portions '136 in mesh with the planet pinions 130 and having additional planet pinions 138.
  • Pinion members 134 have reduced end portions 140 journaled within the rotary member 44, and reduced end portions 142 journaled within the rotary member 58.
  • Planet pinions 144 are provided in mesh with the pinions 138 and have reduced end portions 146 journaled Within rotary member 56 and reduced end portions 148 journaled in rotary member 58.
  • the drive from the substantially stationary sun gear 50 is through pinions 124, 130, 136, 138 to the pinion 144.
  • the pinion 144 has reduced an extension 150 of non-circular cross-section which extends into the universal joint 94 previously referred to and which is therefore effective to provide for rotation of the shaft 87 which in turn drives the finning rolls 90.
  • FIGS. 1A and 1B considered in conjunction with FIG. 2, in which latter figure the parts are circumferentially displaced for clarity, an inlet lubricant fitting 152 is provided which communicates with an annular space 154 formed in the stationary stand 22.
  • the first rotary member 36 is provided with a plurality of longitudinally extending oil passages 156 which communicate with an annular oil passage 158 formed in the second rotary member ⁇ 40.
  • the passage 158 communicates with an annular passage 160 which communicates through an inclined passage 162 with the passages 68 extending longitudinally of the third rotary member 44.
  • the passage 160 communicates through a plurality of axially extending passages 1-64 with oil passages 166 extending longitudinally through the pinion members 134.
  • oil passage 160 communicates through passages 168 with passages 170 extending longitudinally through elongated pinion members 125.
  • Oil passages 68 formed in ⁇ the sixth rotary member 58 are connected to external tubular fittings 174 which are connected by external conduits 176 to the fnning head 76 and thence with longitudinally extending oil passages 178 formed in the finning head 76 which in turn communicate with oil passages 180 leading to the journal for the shaft 87 received in the tubular portion 86 of the support brackets 82.
  • the belt 34 drives the assembly of rotary members, the finning head 76 and the adjustable finning tools 90 in such a way as to cause the finning tools to revolve around the tube or rod on which the fins are to be provided.
  • the finning rolls are positively driven by the planetary gearing including the substantially stationary sun gear 50.
  • the tube is observed during the finning operation and if it progresses slowly in either direction as a result of a difference between the actual speed of rotation of the finning rolls and the theoretically correct speed of rotation thereof, the drive means 30 is adjusted to effect a slow compensating rotation of the sun gear 50 in the appropriate direction to vary the speed of rotation of the finning rolls so that the tubular work piece advances axially without rotation.
  • plain tubing may be advanced through the finning devices without forming fins thereon and at any desired zone on the tubing the finning rolls may be cammed inwardly into operative relation to initiate and continue formation of fins on the tube.
  • the operation results in axial advance of the tube without rotation and when a desired length of finned tubing has been produced, the piston and cylinder devices 116 may be operated to permit radially outward movement of the finning heads to inoperative position.
  • Tube fnning apparatus comprising a base, an elongated tubular member through which a tube to be finned is advanced, bearing means on said base supporting the tubular member adjacent its rear end for rotation about its longitudinal axis, the forward end of said tubular member having a sun gear thereon, an elongated planetary gear housing having a first set of planet pinions in mesh with said sun gear, bearing means on said base supporting the rear end of said gear housing for rotation, bearing means intermediate the forward end of said tubular member and the rear end of said gear housing supporting the forward end of said tubular member for rotation, an elongated finning head connected to the forward end of said gear housing for rotation therewith, bearing means on said base supporting the forward end of said gear housing for rotation, bearing means on said base supporting the forward end of said finning head for rotation, a plurality of fin roll support drive shafts carried by said head for rotation therewith, means connecting said shafts to said first set of planetary pinions for rotation thereby, and independently movable drive means for rotating said gear housing and fi
  • said pinion housing comprises a multiplicity of sections separated generally along planes radially disposed to the axis of rotation, said sections being separable to provide for assembly of the pinion sets therein, and provided with matching oil passages for carrying oil forwardly therethrough for lubrication of said tinning head,

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Details Of Gearings (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Earth Drilling (AREA)
US755349A 1968-08-26 1968-08-26 Apparatus for rolling fins on nonrotating tubes or rods Expired - Lifetime US3564887A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US75534968A 1968-08-26 1968-08-26

Publications (1)

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US3564887A true US3564887A (en) 1971-02-23

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US755349A Expired - Lifetime US3564887A (en) 1968-08-26 1968-08-26 Apparatus for rolling fins on nonrotating tubes or rods

Country Status (8)

Country Link
US (1) US3564887A (fr)
JP (1) JPS4834989B1 (fr)
BR (1) BR6911847D0 (fr)
CA (1) CA931391A (fr)
DE (1) DE1943408A1 (fr)
FR (1) FR2016354A1 (fr)
GB (1) GB1208097A (fr)
SE (1) SE365134B (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10960450B2 (en) * 2017-12-19 2021-03-30 Victaulic Company Pipe grooving device
US11173533B2 (en) 2015-11-30 2021-11-16 Victaulic Company Cam grooving machine
US11441663B2 (en) 2017-05-03 2022-09-13 Victaulic Company Cam grooving machine with cam stop surfaces
US11446725B2 (en) 2019-08-21 2022-09-20 Victaulic Company Pipe grooving device having flared cup
US11759839B2 (en) 2020-09-24 2023-09-19 Victaulic Company Pipe grooving device
US11898628B2 (en) 2015-11-30 2024-02-13 Victaulic Company Cam grooving machine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10080579B2 (en) 2015-03-25 2018-09-25 Medtronic Ps Medical, Inc. Pin drive rotary surgical cutting tools and powered handpieces

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11499618B2 (en) 2015-11-30 2022-11-15 Victaulic Company Cam grooving machine
US11173533B2 (en) 2015-11-30 2021-11-16 Victaulic Company Cam grooving machine
US11898628B2 (en) 2015-11-30 2024-02-13 Victaulic Company Cam grooving machine
US11885400B2 (en) 2015-11-30 2024-01-30 Victaulic Company Method of forming grooves in pipe elements
US11549574B2 (en) 2015-11-30 2023-01-10 Victaulic Company Cam grooving machine
US11441663B2 (en) 2017-05-03 2022-09-13 Victaulic Company Cam grooving machine with cam stop surfaces
US11441662B2 (en) 2017-05-03 2022-09-13 Victaulic Company Cam with stop surfaces
AU2021203527B2 (en) * 2017-12-19 2023-06-15 Victaulic Company Pipe grooving device
US10960450B2 (en) * 2017-12-19 2021-03-30 Victaulic Company Pipe grooving device
US11383285B2 (en) 2017-12-19 2022-07-12 Victaulic Company Pipe grooving device
US11446725B2 (en) 2019-08-21 2022-09-20 Victaulic Company Pipe grooving device having flared cup
US11883871B2 (en) 2019-08-21 2024-01-30 Victaulic Company Pipe receiving assembly for a pipe grooving device
US11759839B2 (en) 2020-09-24 2023-09-19 Victaulic Company Pipe grooving device

Also Published As

Publication number Publication date
GB1208097A (en) 1970-10-07
CA931391A (en) 1973-08-07
FR2016354A1 (fr) 1970-05-08
JPS4834989B1 (fr) 1973-10-25
BR6911847D0 (pt) 1973-01-02
DE1943408A1 (de) 1970-10-22
SE365134B (fr) 1974-03-18

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Date Code Title Description
AS Assignment

Owner name: WOLVERINE TUBE, INC., A DE. CORP.,ALABAMA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:UOP INC.,;REEL/FRAME:004657/0711

Effective date: 19861027

Owner name: WOLVERINE TUBE, INC., 2100 MARKET STREET, N.E., DE

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:UOP INC.,;REEL/FRAME:004657/0711

Effective date: 19861027

AS Assignment

Owner name: BANK OF NOVA SCOTIA, THE, 44 KING STREET, WEST, TO

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:WOLVERINE ACQUISITION CORP. A CORP. OF DE;REEL/FRAME:004696/0897

Effective date: 19870313

AS Assignment

Owner name: WOLVERINE ACQUISITION CORP., A DE CORP,DELAWARE

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:WOLVERINE TUBE, INC.,;REEL/FRAME:004728/0083

Effective date: 19870318

Owner name: WOLVERINE ACQUISITION CORP., CORPORATION TRUST CEN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:WOLVERINE TUBE, INC.,;REEL/FRAME:004728/0083

Effective date: 19870318

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Owner name: WOLVERINE TUBE, INC., A CORP. OF AL,ALABAMA

Free format text: CHANGE OF NAME;ASSIGNOR:WOLVERINE ACQUISITION CORP.;REEL/FRAME:004827/0237

Effective date: 19870626

Owner name: WOLVERINE TUBE, INC., A CORP. OF AL

Free format text: CHANGE OF NAME;ASSIGNOR:WOLVERINE ACQUISITION CORP.;REEL/FRAME:004827/0237

Effective date: 19870626