DE10337301B3 - Bolt especially for motor vehicle components is manufactured by cold extrusion, whereby through-opening is formed in bolt and at least partially enclosed by two legs which are then compressed by cold forming - Google Patents
Bolt especially for motor vehicle components is manufactured by cold extrusion, whereby through-opening is formed in bolt and at least partially enclosed by two legs which are then compressed by cold forming Download PDFInfo
- Publication number
- DE10337301B3 DE10337301B3 DE2003137301 DE10337301A DE10337301B3 DE 10337301 B3 DE10337301 B3 DE 10337301B3 DE 2003137301 DE2003137301 DE 2003137301 DE 10337301 A DE10337301 A DE 10337301A DE 10337301 B3 DE10337301 B3 DE 10337301B3
- Authority
- DE
- Germany
- Prior art keywords
- bolt
- legs
- passage opening
- pressing
- cold
- 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 - Fee Related
Links
- 238000000641 cold extrusion Methods 0.000 title claims abstract description 8
- 238000004519 manufacturing process Methods 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 9
- 239000002184 metal Substances 0.000 claims abstract description 4
- 210000002414 leg Anatomy 0.000 claims description 26
- 238000003825 pressing Methods 0.000 claims description 16
- 210000000689 upper leg Anatomy 0.000 claims description 8
- 210000003414 extremity Anatomy 0.000 claims 1
- 238000003754 machining Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B19/00—Bolts without screw-thread; Pins, including deformable elements; Rivets
- F16B19/02—Bolts or sleeves for positioning of machine parts, e.g. notched taper pins, fitting pins, sleeves, eccentric positioning rings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B21/00—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings
- F16B21/10—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts
- F16B21/12—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts with locking-pins or split-pins thrust into holes
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
Description
Die vorliegende Erfindung betrifft einen Bolzen, insbesondere für Fahrzeugteile, mit einem im wesentlichen zylindrischen aus Metall bestehenden Abschnitt, der durch Kaltfließpressen hergestellt ist, wobei an dem Bolzen eine Durchgangsöffnung vorgesehen ist, sowie ein Verfahren zu Herstellung eines Bolzens.The The present invention relates to a bolt, in particular for vehicle parts, with a substantially cylindrical section made of metal, by cold extrusion is manufactured, wherein provided on the bolt a passage opening is, as well as a method for producing a bolt.
Solche
vorbekannten Bolzen werden in vielen Anwendungsbereichen eingesetzt,
wobei die Durchgangsöffnung
zur Befestigung von weiteren Bauteilen, beispielsweise eines Sicherungssplintes dient,
der in die Durchgangsöffnung
eingesteckt wird, um eine Bewegung des Bolzens in axiale Richtung
zu begrenzen. Die Durchgangsöffnung
wird dabei in einem gesonderten spanenden Arbeitsgang, meist durch
Bohren hergestellt. Ein Bolzen nach dem Stand der Technik ist in
Aus
der
Es ist daher Aufgabe der vorliegenden Erfindung, einen Bolzen der Eingangs genannten Art sowie ein Verfahren zur Herstellung eines Bolzens zu schaffen, das die obigen Nachteile vermeidet und eine einfache und kostengünstige Herstellung der Bolzen ermöglicht.It is therefore an object of the present invention, a bolt of the input mentioned type and a method for producing a bolt to provide that avoids the above disadvantages and a simple and cost-effective Making the bolt allows.
Diese Aufgabe wird mit einem Bolzen mit den Merkmalen des Anspruches 1 sowie einem Herstellungsverfahren mit den Merkmalen des Anspruches 6 gelöst.These Task is with a bolt with the features of claim 1 and a manufacturing method having the features of the claim 6 solved.
Erfindungsgemäß ist die Durchgangsöffnung zumindest teilweise von zwei endseitig angeordneten Schenkeln umgeben, die durch Kaltumformung zusammengedrückt sind und die über einen Teil ihrer Länge an ihrer Innenseite aneinander anliegen. Dadurch entfällt die Notwendigkeit einer aufwendigen spanenden Bearbeitung und der Bolzen mit der Durchgangsöffnung ist ausschließlich durch eine Kaltumformung hergestellt, bei der kein Abfall entsteht. Die endseitig angeordneten Schenkel sind zur Bildung der Durchgangsöffnung zusammengedrückt und können somit zur Befestigung eines weiteren Bauteiles, beispielsweise eines Sicherungssplintes dienen.According to the invention Through opening at least partially surrounded by two ends arranged thighs, the compressed by cold forming are and the over a part of their length abut each other on their inside. This eliminates the Necessity of a costly machining and the bolt with the passage opening is exclusive produced by a cold forming, where no waste is produced. The ends arranged legs are compressed to form the through hole and can thus for attachment of another component, such as a Serve with split pins.
Gemäß einer bevorzugten Ausführungsform liegen die Schenkel in einem endseitigen Bereich formschlüssig aneinander an, so dass auch dünne Bauteile in der Durchgangsöffnung nicht nach außen herausfallen können. Dabei kann die Durchgangsöffnung von dem Ende des Bolzens etwas beabstandet angeordnet sein, beispielsweise um ein mehrfaches des Durchmessers des Durchgangsöffnung, so dass die Schenkel relativ stabil die Durchgangsöffnung verschließen und nicht ohne weiteres bei einer Belastung in axiale Richtung wieder aufgebogen werden.According to one preferred embodiment lie the legs in one end-side area form-fitting together so that even thin components in the passage opening do not fall out can. In this case, the passage opening be arranged slightly spaced from the end of the bolt, for example by a multiple of the diameter of the passage opening, so that the legs close the passage opening relatively stable and not readily at a load in the axial direction again be bent up.
Die Durchgangsöffnung kann im Querschnitt im wesentlichen kreisförmig ausgebildet sein, so dass Splinte, Bolzen, Drähte oder andere Bauteile leicht an dem Bolzen montiert werden können. Vorzugsweise erstreckt sich dabei die Durchgangsöffnung senkrecht zur Längsachse des Bolzens, wie dies beispielsweise zur Befestigung von Sicherungssplinten notwendig ist.The Through opening may be formed substantially circular in cross section, so that Cotter pins, bolts, wires or other components can be easily mounted on the bolt. Preferably extends through the passage opening perpendicular to the longitudinal axis of the bolt, as for example for securing Sicherungssplinten necessary is.
Erfindungsgemäß wird auch
ein Verfahren zur Herstellung eines Bolzens mit den folgenden Schritten
bereitgestellt:
Herstellen eines Bolzens durch Kaltfließpressen,
wobei an einem endseitigen Abschnitt zwei sich in Längsrichtung
des Bolzens erstreckende Schenkel geformt werden, zwischen denen
ein Spalt ausgebildet ist, und
Verpressen der Schenkel durch
Kaltumformung derart, dass die Schenkel über einen Teil ihrer Länge aneinander
gedrückt
werden an dem vom Ende abgewandten Seite der Schenkel eine Durchgangsöffnung ausgebildet
wird.According to the invention, a method is also provided for producing a bolt with the following steps:
Producing a bolt by cold extrusion, wherein at an end portion of two longitudinally extending the bolt leg are formed, between which a gap is formed, and
Pressing the leg by cold forming such that the legs are pressed over a portion of their length to each other at the side facing away from the end side of the legs, a through hole is formed.
Mit diesen beiden Verfahrensschritten lässt sich ein Bolzen ohne spanende Bearbeitung kostengünstig herstellen, wobei das Verfahren auch für die industrielle Serienfertigung geeignet ist.With These two process steps can be a bolt without cutting Processing cost-effective The process also for industrial mass production suitable is.
Vorzugsweise wird die Breite des Spaltes vor dem Verpressen über die Länge im wesentlichen gleich ausgebildet, so dass der Spalt eine schlitzförmige Form besitzt, die sich von einer Stirnseite des Bolzens in Längsrichtung bis zu einem Bodenabschnitt erstreckt. Dabei kann der Bodenabschnitt rund hergestellt werden, damit er anschließend einen Wandabschnitt der Durchgangsöffnung ausbildet.Preferably, the width of the nip is formed substantially equal over the length prior to compression so that the nip has a slot-shaped shape extending longitudinally from an end face of the pin to a bottom portion. Here, the bottom section can be made round, so he then a Wall section of the passage opening forms.
Das Verpressen kann der Schenkel kann nach der Herstellung des Bolzenrohlings mittels eines Presswerkzeuges ausgeführt werden, das mit mindestens zwei Pressbacken auf den äußeren Umfang der Schenkel drückt. Die Schenkel können dann mit ihrer im wesentlichen ebenen Innenseite formschlüssig aneinander gedrückt werden.The The leg can be pressed after the production of the billet blank be carried out by means of a pressing tool with at least two pressing jaws on the outer circumference the thigh presses. The thighs can then with their substantially flat inner surface form-fitting together depressed become.
Die Erfindung wird nachfolgend anhand eines Ausführungsbeispiels mit Bezug auf die beigefügten Zeichnungen näher erläutert. Es zeigen:The Invention will be described below with reference to an embodiment with reference to the attached Drawings closer explained. Show it:
Ein
zylindrischer Bolzen
In
In
In
Für eine Herstellung
des Bolzens
Die
Erfindung ist nicht auf das dargestellte Ausführungsbeispiel beschränkt. Die
Form der Durchgangsöffnung
Der
Bolzen
Claims (9)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2003137301 DE10337301B3 (en) | 2003-08-14 | 2003-08-14 | Bolt especially for motor vehicle components is manufactured by cold extrusion, whereby through-opening is formed in bolt and at least partially enclosed by two legs which are then compressed by cold forming |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2003137301 DE10337301B3 (en) | 2003-08-14 | 2003-08-14 | Bolt especially for motor vehicle components is manufactured by cold extrusion, whereby through-opening is formed in bolt and at least partially enclosed by two legs which are then compressed by cold forming |
Publications (1)
Publication Number | Publication Date |
---|---|
DE10337301B3 true DE10337301B3 (en) | 2005-04-07 |
Family
ID=34258156
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2003137301 Expired - Fee Related DE10337301B3 (en) | 2003-08-14 | 2003-08-14 | Bolt especially for motor vehicle components is manufactured by cold extrusion, whereby through-opening is formed in bolt and at least partially enclosed by two legs which are then compressed by cold forming |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE10337301B3 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008000249A1 (en) * | 2008-02-07 | 2009-08-13 | Zf Friedrichshafen Ag | Connecting arrangement for use between selection shaft and notched disk of vehicle gear of motor vehicle, has clamping element with end comprising area with diameter that is slightly smaller than smallest diameter of boreholes |
EP3205518A1 (en) * | 2016-02-11 | 2017-08-16 | Hübner GmbH & Co. KG | Means for securing a connection between two bellows elements of a bellows meeting at the front in the direction of the periphery |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1228189A (en) * | 1913-07-03 | 1917-05-29 | Kerner Mfg Company | Resilient bolt. |
FR2441083A1 (en) * | 1978-11-09 | 1980-06-06 | Itt | LOCKING NUT |
-
2003
- 2003-08-14 DE DE2003137301 patent/DE10337301B3/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1228189A (en) * | 1913-07-03 | 1917-05-29 | Kerner Mfg Company | Resilient bolt. |
FR2441083A1 (en) * | 1978-11-09 | 1980-06-06 | Itt | LOCKING NUT |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008000249A1 (en) * | 2008-02-07 | 2009-08-13 | Zf Friedrichshafen Ag | Connecting arrangement for use between selection shaft and notched disk of vehicle gear of motor vehicle, has clamping element with end comprising area with diameter that is slightly smaller than smallest diameter of boreholes |
EP3205518A1 (en) * | 2016-02-11 | 2017-08-16 | Hübner GmbH & Co. KG | Means for securing a connection between two bellows elements of a bellows meeting at the front in the direction of the periphery |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8100 | Publication of the examined application without publication of unexamined application | ||
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |