US3620060A - Apparatus for forming closing heads at rivets - Google Patents

Apparatus for forming closing heads at rivets Download PDF

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Publication number
US3620060A
US3620060A US25513A US3620060DA US3620060A US 3620060 A US3620060 A US 3620060A US 25513 A US25513 A US 25513A US 3620060D A US3620060D A US 3620060DA US 3620060 A US3620060 A US 3620060A
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US
United States
Prior art keywords
axis
crank
drive shaft
rotation
rivet
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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
US25513A
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English (en)
Inventor
Paul Ramseier
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Braecker AG
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Braecker AG
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Filing date
Publication date
Application filed by Braecker AG filed Critical Braecker AG
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Publication of US3620060A publication Critical patent/US3620060A/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J15/00—Riveting
    • B21J15/10—Riveting machines
    • B21J15/12—Riveting machines with tools or tool parts having a movement additional to the feed movement, e.g. spin

Definitions

  • the present invention relates to a new and improved apparatus for form-ing closing heads at rivets with the aid of a rivet set or anvil which performs loop-like revolving movements.
  • Riveting machines are known to the art wherein the rivet set supports means traces a hypocycloidal path, the movement being generated by hypocycloidal gearing.
  • the uper end of the rivet set support is in the form of a spherical segment-like member and bears against a ball cup or socket which takes up the rivet forming pressure.
  • the frictional forces which occur these components are quite subject to wear.
  • the lateral forces which appear at the rivet set or anvil can only be taken up to a limited extent, since otherwise the rivet set support will tend to periodically raise away from the ball cup or socket.
  • Another, more specific object of the present invention relates to an improved apparatus for forming closing heads at rivets which overcomes the aforementioned drawbacks of the prior art while dispensing with the use of spherical segments and ball sockets.
  • Yet another significant object of the present invention relates to an improved apparatus for reliably forming closing heads at rivets in an extremely simple and efficient manner.
  • the apparatus of the invention contemplates supporting the rivet set or anvil in a crank-like elements which cooperates with the drive shaft, the axis of rotation of the crank-like element being inclined with respect to the axis of rotation of the drive shaft. Furthermore, the crank axis of the crank-like ele ment in one extreme position at least approximately coincides with the axis of rotation of the drive shaft and in the other extreme position intersects the axis of rotation of the drive shaft at the region of the rivet.
  • FIG. 1 is a schematic representation of a preferred embodiment of the inventive apparatus showing the components in one extreme position;
  • FIG. 2 is a schematic representation of the inventive apparatus, with the components depicted in the other extreme or terminal position;
  • FIG. 3 is a sectional view through an embodiment of inventive riveting apparatus.
  • FIG. 4 is a sectional view through a further embodiment of inventive riveting apparatus.
  • the upper portion 4 of this crank-like element 4, 5 is rotatable about its own axis of rotation y, the latter of which encloses an angle a with respect to the axis of rotation x of the drive shaft 1.
  • the lower portion 5 of the such crank-like element 4, 5 is constructed as the support means for the rivet set or anvil 6 or its support.
  • the rivet set 6 is secured against rotation about its own axis z. Its axis z forms an angle 5 with respect to the axis of rotation y of the crank-like element 4, 5.
  • the axis z of the rivet set 6, which axis will hereinafter be conveniently referred to as the crank axis z extends at an angle 'y with respect to the axis of rotation x of the drive shaft 1.
  • This angle 'y is composed of the summation of the angles oc-I-B which are of the same magnitude with respect to one another. The selection of this angle is such that in the other extreme positionin other words in the position shown in FIG.
  • crank axis 2 and the drive shaft axis x extend coaxially or at least approximately coaxially with respect to one another. Additionally, the crank axis 2 should intersect the drive shaft axis x in the extreme position shown in FIG. 1 at the region of the rivet 8, preferably at the closing head to be formed or at the center point of the closing head-spherical segment. It will be observed that in the extreme position depicted in FIG. 1 all three of the aforedescribed axes x, y and z intersect at a point P at the region of the rivet 8, and furthermore, they are disposed in a common plane.
  • the shaft 1 and the crank-like element 4, 5 are driven with the same or different number of revolutions and the same or opposite direction of rotation. This can be achieved through the provision of an intermediately arranged gearing or, in any event, by providing two drive motors. In so doing, the rivet set or anvil 6 performs a loop-shaped, rosette-like movement, the shape of which can be changed by producing or changing the the difference in the number of revolutions or rotational speed of the aforedescribed rotational components.
  • a hypocycloidal gearing wherein the gear 11) meshes with an internal ring gear 11 of larger diameter and which is fixed against rotation.
  • the rivet set 6 traces a predetermined loopshaped path of movement.
  • a radially extending pin member 13 depends laterally from the rivet set support 21 and engages in an opening 14 of a member which is connected with the stationary bushing or sleeve 15, in order to prevent rotation of the rivet set or anvil 6 about its own axis.
  • the rivet set support means 21 is mounted at the drive shaft 12 with the aid of a needle bearing 24 provided at the end of the shaft member 17 of the rivet set support 21.
  • the driven shaft 12 in turn, is rotatably mounted by a pin or journal 22 in the spindle 16.
  • the axial forces are absorbed by ball bearings 18, 19, or suitable pressure bearings.
  • the driven shaft 12corresponding to the crank-like element 4 of FIGS. 1 and 2- is inclined with respect to the drive shaft axis x of the spindle 16, so that therefore both axes x and y form an acute angle with respect to one another.
  • the crank axis z corresponding to the one extreme position depicted in FIG. 2extends coaxially with respect to the drive shaft axis x.
  • the drive occurs by means of epicycloidal gearing. More precisely, it will be understood that a motor driven spindle 26, mounted for rotation about the axis x, is rotatably mounted in the bushing or sleeve member 25 which is rigidly supported aaginst rotation. Within a bore of this spindle 26 there is arranged epicycloidal gearing incorporating the gears 31 and 33. The gear 33 is seated upon a shaft member 32 which can be either stationary or driven. The gear 31 is operatively connected via a shaft 34 with the driving Shaft 27, at the lower end of which there is seated the rivet set 28 or forms together with such a single piece. The position of the components depicted in FIG.
  • FIG. 4 corresponds to the positional arrangement shown in FIG. 2, wherein the axes x and z extend coaxially. Also in this embodiment the conditions with respect to axes, angle and point of intersection, as such have been explained in conjunction with the arrangement of FIGS. 1 and 2, also hold true.
  • the support 28 of the rivet set or anvil 6, just as was the case with the embodiment of FIG. 3, is here also secured against rotation about its own axis by means of the radially extending pin member 29. The axial forces acting during the riveting operation upon the shaft member 27 are taken up by a roller bearing seated in the bore of the spindle member 26.
  • An apparatus for forming closing heads at rivets by means of a rivet set performing loop-like revolving movements comprising a drive shaft rotatable about an axis of rotation ,a rotatable crank-like element for supporting the rivet set and cooperating with said rotatable drive shaft, said rotatable crank-like element having an axis of rotation and a crank axis, said axis of rotation of said cranklike element being inclined with respect to said axis of rotation of said drive shaft, said crank axis assuming two extreme positions, said crank axis in one extreme postion at least approximately coinciding with said axis of rotation of said drive shaft and in the other extreme position intersecting said axis of rotation of said drive shaft at the region of the rivet.
  • crank-like element comprises a crank-like driven shaft member mounted at an inclination in said bore, a pinion provided for said crank-like driven shaft member, gear means, said pinion meshing with said gear means and defining said epicycloidal gearing, a rivet set support means provided for said crank-like driven shaft member, and means for securing said rivet set support means against rotation about its own axis.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Insertion Pins And Rivets (AREA)
  • Transmission Devices (AREA)
  • Retarders (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
  • Rolling Contact Bearings (AREA)
US25513A 1969-04-11 1970-04-03 Apparatus for forming closing heads at rivets Expired - Lifetime US3620060A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH550169A CH507036A (de) 1969-04-11 1969-04-11 Vorrichtung zum Formen von Schliessköpfen an Nieten

Publications (1)

Publication Number Publication Date
US3620060A true US3620060A (en) 1971-11-16

Family

ID=4294665

Family Applications (1)

Application Number Title Priority Date Filing Date
US25513A Expired - Lifetime US3620060A (en) 1969-04-11 1970-04-03 Apparatus for forming closing heads at rivets

Country Status (5)

Country Link
US (1) US3620060A (de)
JP (1) JPS4830435B1 (de)
CH (1) CH507036A (de)
FR (1) FR2038390B1 (de)
GB (1) GB1240961A (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3768289A (en) * 1971-10-29 1973-10-30 Vsi Corp Planetary head forming tool
US3779059A (en) * 1971-10-29 1973-12-18 Usi Corp Head forming tool
US3800579A (en) * 1971-02-24 1974-04-02 Langendorf Watch Co Wobble riveting machine
JPS49120838U (de) * 1973-02-14 1974-10-16
US3990285A (en) * 1974-12-05 1976-11-09 Vyskumny Ustav Mechanizacie A Automatizacie Method of and apparatus for shaping articles by rolling
WO1998058762A1 (en) * 1997-06-24 1998-12-30 The Timken Company Process and machine for uniting rotatable machine components
US6640438B2 (en) 1998-06-22 2003-11-04 The Timken Company Process and machine for uniting rotatable machine components

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2815208C2 (de) * 1978-04-08 1982-09-23 Arno Ing.(grad.) 7322 Donzdorf Thamm Taumelnietmaschine
FR2612096B1 (fr) * 1987-03-12 1993-12-17 Lavigne Bernard Tete de rivetage
EP0405033A1 (de) * 1989-06-30 1991-01-02 Vsi Corporation Halteklammerbolzen für Motor
JP5835068B2 (ja) * 2012-04-04 2015-12-24 株式会社デンソー 揺動鍛造装置
JP6767470B2 (ja) 2016-02-16 2020-10-14 太陽ホールディングス株式会社 感光性樹脂組成物、ドライフィルム、硬化物、プリント配線板および光塩基発生剤
JP6487961B2 (ja) * 2017-05-08 2019-03-20 オリンパス株式会社 関節構造体の製造方法

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3800579A (en) * 1971-02-24 1974-04-02 Langendorf Watch Co Wobble riveting machine
US3768289A (en) * 1971-10-29 1973-10-30 Vsi Corp Planetary head forming tool
US3779059A (en) * 1971-10-29 1973-12-18 Usi Corp Head forming tool
JPS49120838U (de) * 1973-02-14 1974-10-16
US3990285A (en) * 1974-12-05 1976-11-09 Vyskumny Ustav Mechanizacie A Automatizacie Method of and apparatus for shaping articles by rolling
WO1998058762A1 (en) * 1997-06-24 1998-12-30 The Timken Company Process and machine for uniting rotatable machine components
US6443622B1 (en) 1997-06-24 2002-09-03 The Timken Company Spindle and component assembly with formed spindle end portion
US6688773B2 (en) 1997-06-24 2004-02-10 The Timken Company Deformable spindle end portion
US6640438B2 (en) 1998-06-22 2003-11-04 The Timken Company Process and machine for uniting rotatable machine components
US6702474B2 (en) 1998-06-22 2004-03-09 The Timken Company Component assembly with formed spindle end portion
US20040165801A1 (en) * 1999-12-23 2004-08-26 Webb Alan Charles Component assembly with formed spindle end portion

Also Published As

Publication number Publication date
GB1240961A (en) 1971-07-28
CH507036A (de) 1971-05-15
FR2038390B1 (de) 1974-05-03
FR2038390A1 (de) 1971-01-08
DE2015144A1 (de) 1970-10-15
JPS4830435B1 (de) 1973-09-20

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