EP0936029B1 - Device for placing blind rivet nuts - Google Patents

Device for placing blind rivet nuts Download PDF

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Publication number
EP0936029B1
EP0936029B1 EP19970122340 EP97122340A EP0936029B1 EP 0936029 B1 EP0936029 B1 EP 0936029B1 EP 19970122340 EP19970122340 EP 19970122340 EP 97122340 A EP97122340 A EP 97122340A EP 0936029 B1 EP0936029 B1 EP 0936029B1
Authority
EP
European Patent Office
Prior art keywords
blind rivet
tensile force
spring
rivet nuts
riveting operation
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
EP19970122340
Other languages
German (de)
French (fr)
Other versions
EP0936029A1 (en
Inventor
Herbert Schruff
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.)
Individual
Original Assignee
Individual
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
Priority claimed from EP97121896A external-priority patent/EP0922536B1/en
Application filed by Individual filed Critical Individual
Priority to EP19970122340 priority Critical patent/EP0936029B1/en
Publication of EP0936029A1 publication Critical patent/EP0936029A1/en
Application granted granted Critical
Publication of EP0936029B1 publication Critical patent/EP0936029B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/0007—Tools for fixing internally screw-threaded tubular fasteners
    • B25B27/0014—Tools for fixing internally screw-threaded tubular fasteners motor-driven
    • 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
    • B21J15/105—Portable riveters
    • 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
    • B21J15/16—Drives for riveting machines; Transmission means therefor
    • B21J15/20—Drives for riveting machines; Transmission means therefor operated by hydraulic or liquid pressure
    • B21J15/205—Riveting tools having hand operated pumps for building up the hydraulic pressure
    • 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
    • B21J15/38—Accessories for use in connection with riveting, e.g. pliers for upsetting; Hand tools for riveting
    • B21J15/386—Pliers for riveting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/0007—Tools for fixing internally screw-threaded tubular fasteners

Definitions

  • the invention relates to a device for setting blind rivet nuts, in which the mandrel up to the stop in the mouthpiece Nut thread is screwed in and is then moved axially, so that the thin-walled material of the cut part to the outside evades and forms a bead.
  • Such devices require a relatively large pulling force, for example by two moving towards each other Hand lever is applied. Thereby, the operator relatively high demands.
  • GB 2 130 514 A describes a device for setting blind rivets, which are provided with rivets tearing off during the riveting process, known.
  • This device has a double-acting Piston on a spring on a mechanism for pulling the Blind rivet acts.
  • the spring interacts with the piston that energy is stored during the idle stroke of the piston and is released during the working stroke of the piston and thus in this phase supports its movement.
  • the well-known device differs from a mechanical one by its fundamentally different mode of action. It is structurally complex designed and not suitable for setting blind rivet nuts.
  • the invention has for its object to provide a device with low forces when setting blind rivet nuts are required and thus the handling of the device is simplified is.
  • the total required power is thus required significantly reduced by a storage device is just loaded, so to speak, then applying the pulling force supported. This is the case with manually operated devices Tractive force significantly reduced and handling easier.
  • the Devices can be designed more cost-effectively because of the total tractive force to be applied is significantly reduced.
  • the storage device can be designed, for example, as a compression spring his.
  • the illustrated mechanical device consists of a transverse bearing 1, in which a guide tube 2 is screwed, which for Storage of the housing 3 is used so that it against the cross bearing 1st is axially displaceable.
  • the cross bearing 1 With the cross bearing 1 axially fixed, but with free radial Game is a mandrel 4, which passes through the guide tube 2 protrudes from the housing 3 and is connected to the mandrel 10 there becomes.
  • the mouthpiece 1 is screwed into the housing 3 and over a knurled nut 12 countered.
  • the cross bearing 1 is with the Housing 3 connected by the lever arms 8 in the transverse bearing 1 with a Cross pin 7 are stored and the tabs 6 in the housing 3 with a cross section 5 and in the lever arm 8 with a cross pin 9 be stored.
  • the cross bearing 1 and the housing 3 move during the riveting process away from each other.
  • the intermediate spring 13 was moved apart the lever arms 8 compressed into position 1 and now supports when moving the lever arms 8 in the position 2 the movement of the housing 3 away from the transverse bearing 1 and thus the traction to be applied.
  • the storage device is shown as a spring, which is designed as a coil spring.
  • Force storage devices to support the to be applied Tractive force such as a movement-dependent engagement of a pressure medium that occurs when the mandrel is withdrawn is relieved.
  • the support of the traction serves through the storage device of the first phase of the riveting process, where the greatest force is required to avoid the Wall material of the cut-out part of the blind rivet nut initiate.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Insertion Pins And Rivets (AREA)

Description

Die Erfindung betrifft ein Gerät zum Setzen von Blindnietmuttern, bei denen der Gewindedorn bis zum Anschlag an das Mundstück in das Muttergewinde eingeschraubt wird und dann axial verschoben wird, so daß das dünnwandige Material des freigeschnittenen Teils nach außen ausweicht und einen Wulst bildet.The invention relates to a device for setting blind rivet nuts, in which the mandrel up to the stop in the mouthpiece Nut thread is screwed in and is then moved axially, so that the thin-walled material of the cut part to the outside evades and forms a bead.

Bei solchen Geräten ist eine verhältnismäßig große Zugkraft erforderlich, die beispielsweise durch zwei sich aufeinander zu bewegende Handhebel aufgebracht wird. Dabei werden an die Bedienungsperson verhältnismäßig große Anforderungen gestellt.Such devices require a relatively large pulling force, for example by two moving towards each other Hand lever is applied. Thereby, the operator relatively high demands.

Aus der DE 94 08 203 U ist ein Gerät zum Setzen von Blindnietmuttern gemäß dem Oberbegriff des Patentanspruches 1 bekannt, bei dem die in die Blindnietmutter einzuleitende Zugkraft ausschließlich durch die in die Handhebel eingeleiteten Stellkräfte aufgebracht wird.DE 94 08 203 U describes a device for setting blind rivet nuts according to the preamble of claim 1 known, in which the tensile force to be introduced into the blind rivet nut only applied by the actuating forces introduced into the hand levers becomes.

Aus der GB 2 130 514 A ist ein Gerät zum Setzen von Blindnieten, die mit beim Nietvorgang abreißenden Nietnägeln versehen sind, bekannt. Dieses Gerät weist einen zweiseitig beaufschlagbaren Kolben auf, die über eine Feder auf eine Mechanik zum Ziehen des Blindnietnagels einwirkt. Die Feder wirkt so mit dem Kolben zusammen, daß Energie während des Leerhubes des Kolbens gespeichert und während des Arbeitshubes des Kolbens freigegeben wird und damit in dieser Phase dessen Bewegung unterstützt. Das- bekannte Gerät unterscheidet sich von einem mechanisch wirkenden durch seine grundsätzlich andere Wirkungsweise. Es ist baulich aufwendig gestaltet und nicht zum Setzen von Blindnietmuttern geeignet.GB 2 130 514 A describes a device for setting blind rivets, which are provided with rivets tearing off during the riveting process, known. This device has a double-acting Piston on a spring on a mechanism for pulling the Blind rivet acts. The spring interacts with the piston that energy is stored during the idle stroke of the piston and is released during the working stroke of the piston and thus in this phase supports its movement. The well-known device differs from a mechanical one by its fundamentally different mode of action. It is structurally complex designed and not suitable for setting blind rivet nuts.

Der Erfindung liegt die Aufgabe zugrunde, ein Gerät verfügbar zu machen, bei dem geringe Kräfte beim Setzen von Blindnietmuttern erforderlich sind und somit die Handhabung des Gerätes vereinfacht ist.The invention has for its object to provide a device with low forces when setting blind rivet nuts are required and thus the handling of the device is simplified is.

Gelöst wird die Aufgabe durch ein Gerät zum Setzen von Blindnietmuttern gemäß den Merkmalen des Patentanspruchs 1.The task is solved by a device for setting blind rivet nuts according to the features of claim 1.

Mit dem vorliegenden Gerät wird somit der erforderliche Gesamtkraftbedarf wesentlich verringert, indem eine Speichereinrichtung nur sozusagen geladen wird, die dann das Aufbringen der Zugkraft unterstützt. Dadurch ist bei von Hand betätigten Geräten die Zugkraft wesentlich verringert und die Handhabung erleichtert. Die Geräte können kostengünstiger gestaltet werden, da die insgesamt aufzubringende Zugkraft wesentlich verringert ist.With the present device, the total required power is thus required significantly reduced by a storage device is just loaded, so to speak, then applying the pulling force supported. This is the case with manually operated devices Tractive force significantly reduced and handling easier. The Devices can be designed more cost-effectively because of the total tractive force to be applied is significantly reduced.

Die Speichereinrichtung kann beispielsweise als Druckfeder ausgebildet sein.The storage device can be designed, for example, as a compression spring his.

Weitere vorteilhafte Ausführungsformen und Weiterbildungen sind in den Unteransprüchen gekennzeichnet.Further advantageous embodiments and further developments are in marked the subclaims.

Die Erfindung wird nachstehend anhand eines Ausführungsbeispieles näher erläutert. Die einzige Figur zeigt ein Gerät mit zwei aufeinander zu bewegbaren Hebelarmen. The invention is described below using an exemplary embodiment explained in more detail. The only figure shows a device with two on top of each other to movable lever arms.

Das veranschaulichte mechanische Gerät besteht aus einem Querlager 1, in dem ein Führungsrohr 2 fest verschraubt wird, welches zur Lagerung des Gehäuses 3 dient, so daß dieses gegen das Querlager 1 axial verschiebbar ist.The illustrated mechanical device consists of a transverse bearing 1, in which a guide tube 2 is screwed, which for Storage of the housing 3 is used so that it against the cross bearing 1st is axially displaceable.

Mit dem Querlager 1 axial fest verbunden, jedoch mit freiem radialem Spiel ist ein Dorn 4, der durch das Führungsrohr 2 hindurch aus dem Gehäuse 3 herausragt und dort mit dem Gewindedorn 10 verbunden wird. In das Gehäuse 3 wird das Mundstück 1 eingeschraubt und über eine Rändelmutter 12 gekontert. Das Querlager 1 wird mit dem Gehäuse 3 verbunden, indem die Hebelarme 8 im Querlager 1 mit einem Querstift 7 gelagert werden und die Laschen 6 im Gehäuse 3 mit einem Querschnitt 5 sowie im Hebelarm 8 mit einem Querstift 9 gelagert werden.With the cross bearing 1 axially fixed, but with free radial Game is a mandrel 4, which passes through the guide tube 2 protrudes from the housing 3 and is connected to the mandrel 10 there becomes. The mouthpiece 1 is screwed into the housing 3 and over a knurled nut 12 countered. The cross bearing 1 is with the Housing 3 connected by the lever arms 8 in the transverse bearing 1 with a Cross pin 7 are stored and the tabs 6 in the housing 3 with a cross section 5 and in the lever arm 8 with a cross pin 9 be stored.

Beim Nietvorgang bewegen sich das Querlager 1 und das Gehäuse 3 voneinander weg. Die dazwischenliegende Feder 13 wurde beim Auseinanderbewegen der Hebelarme 8 in die Position 1 zusammengedrückt und unterstützt nunmehr beim aufeinander zu bewegen der Hebelarme 8 in die Position 2 die Wegbewegung des Gehäuses 3 von dem Querlager 1 und damit die aufzubringende Zugkraft.The cross bearing 1 and the housing 3 move during the riveting process away from each other. The intermediate spring 13 was moved apart the lever arms 8 compressed into position 1 and now supports when moving the lever arms 8 in the position 2 the movement of the housing 3 away from the transverse bearing 1 and thus the traction to be applied.

In der Zeichnung ist die Speichereinrichtung als Feder dargestellt, die als Schraubenfeder ausgebildet ist. Es sind jedoch auch andere Kraftspeichereinrichtungen zur Unterstützung der aufzubringenden Zugkraft denkbar, wie zum Beispiel ein bewegungsabhängiges Zuschalten eines Druckmediums, das beim Zurückziehen des Gewindedorns entlastet wird. In jedem Fall dient die Unterstützung der Zugkraft durch die Speichereinrichtung der ersten Phase des Nietvorgangs, bei dem die größte Kraft erforderlich ist, um das Ausweichen des Wandmaterials des freigeschnittenen Teils der Blindnietmutter einzuleiten. Ist dieser Vorgang abgeschlossen, ist das zusätzliche Aufbringen einer Kraft durch die Speichereinrichtung nicht mehr erforderlich, sondern gegen Ende des Nietvorgangs sogar schädlich und hat deshalb zu unterbleiben. Die Speichereinrichtung hat deshalb eine entsprechende Auslegung zu erfahren.In the drawing, the storage device is shown as a spring, which is designed as a coil spring. However, there are others Force storage devices to support the to be applied Tractive force conceivable, such as a movement-dependent engagement of a pressure medium that occurs when the mandrel is withdrawn is relieved. In any case, the support of the traction serves through the storage device of the first phase of the riveting process, where the greatest force is required to avoid the Wall material of the cut-out part of the blind rivet nut initiate. When this process is complete, it is additional Application of a force by the storage device no longer required, but even harmful at the end of the riveting process and therefore has to be avoided. The storage device has therefore to find out an appropriate interpretation.

Mit den erfindungsgemäßen Maßnahmen ist die Betätigung von Handgeräten wesentlich erleichtert, und Geräte, die mit einer Kraftquelle zur Aufbringung der erforderlichen Zugkraft ausgestattet sind, können weniger aufwendig und damit kostengünstiger hergestellt werden.With the measures according to the invention, the operation of handheld devices much easier, and devices with a power source are equipped to apply the required tractive force, can be made less expensive and therefore less expensive become.

Claims (5)

  1. A device for placing blind rivet nuts, wherein the device comprises hand levers for applying a tensile force for placing the blind rivet nuts, and wherein a threaded mandrel (10) is screwed into a nut thread until it strikes a nose piece (11) and is subsequently axially displaced so that the thin-walled material of the cut part of the blind rivet nut yields outwards and forms a collar, characterised in that a previously stored force assists the force applied during the riveting operation, wherein a spring (13) is provided which in a first phase of a riveting operation assists the tensile force applied during the riveting operation and which, in a subsequent, second phase of the riveting operation, reduces the tensile force applied.
  2. A device according to claim 1, characterised in that the spring (13) is constructed as a pressure spring which when the tool is opened stores part of the force which is necessary for the next operation.
  3. A device according to claim 2, characterised in that the pressure spring (13) is constructed as a coil spring.
  4. A device according to any one of claims 1 to 3, characterised in that a mechanical transmission is provided for reducing the tensile force.
  5. A device according to any one of claims 1 to 4, characterised in that a pressure reducer is provided for reducing the tensile force.
EP19970122340 1997-12-12 1997-12-18 Device for placing blind rivet nuts Expired - Lifetime EP0936029B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP19970122340 EP0936029B1 (en) 1997-12-12 1997-12-18 Device for placing blind rivet nuts

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP97121896 1997-12-12
EP97121896A EP0922536B1 (en) 1997-12-12 1997-12-12 Device for placing rivet nuts
EP19970122340 EP0936029B1 (en) 1997-12-12 1997-12-18 Device for placing blind rivet nuts

Publications (2)

Publication Number Publication Date
EP0936029A1 EP0936029A1 (en) 1999-08-18
EP0936029B1 true EP0936029B1 (en) 2001-03-14

Family

ID=26145976

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19970122340 Expired - Lifetime EP0936029B1 (en) 1997-12-12 1997-12-18 Device for placing blind rivet nuts

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ12144U1 (en) * 2002-02-18 2002-03-28 Ms Nářadí, S.R.O. Clamping joint of exchangeable mandrel and pulling pin of a riveting tool and use of such clamping joint for hand-held riveting tool

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2130514B (en) * 1982-11-18 1985-10-23 Spurway Cooke Ind Pty Ltd Blind-rivet setting tool
DE3306827C2 (en) * 1983-02-26 1986-05-07 Gesipa Blindniettechnik Gmbh, 6000 Frankfurt Pneumatic-hydraulic setting tool for blind rivet nuts
DE59004439D1 (en) * 1990-05-04 1994-03-10 Honsel Nieten & Metallwarenfab Device for monitoring processing devices for blind fasteners.
DE9408203U1 (en) * 1994-05-18 1994-07-14 Liu Yang Tein Rivet gun

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Publication number Publication date
EP0936029A1 (en) 1999-08-18

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