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EP0703021B1 - Method of manufacturing a two-part cage nut - Google Patents

Method of manufacturing a two-part cage nut Download PDF

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Publication number
EP0703021B1
EP0703021B1 EP95113814A EP95113814A EP0703021B1 EP 0703021 B1 EP0703021 B1 EP 0703021B1 EP 95113814 A EP95113814 A EP 95113814A EP 95113814 A EP95113814 A EP 95113814A EP 0703021 B1 EP0703021 B1 EP 0703021B1
Authority
EP
European Patent Office
Prior art keywords
base plate
bent
holding
plate
sheet metal
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
EP95113814A
Other languages
German (de)
French (fr)
Other versions
EP0703021A2 (en
EP0703021A3 (en
Inventor
Ralph Golczyk
Klaus Hullmann
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.)
A Raymond GmbH and Co KG
Original Assignee
A Raymond GmbH and Co KG
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 A Raymond GmbH and Co KG filed Critical A Raymond GmbH and Co KG
Publication of EP0703021A2 publication Critical patent/EP0703021A2/en
Publication of EP0703021A3 publication Critical patent/EP0703021A3/en
Application granted granted Critical
Publication of EP0703021B1 publication Critical patent/EP0703021B1/en
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
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/24—Making other particular articles nuts or like thread-engaging members
    • 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
    • B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00

Definitions

  • the invention relates to a method for producing a two-part Cage nut made of a sheet metal plate, consisting of a holding part and a mother part slidably mounted on it.
  • the mother part can both with a threaded sleeve for metric thread as well as with a catchy one Be stamped sheet metal thread.
  • the sliding bearing of the mother part serves the purpose that the nut is within certain limits to the screw axis can align.
  • the production is usually carried out so that the holding part with its side Boundary tab (the so-called cage) and the mother part separately punched out and worked from each other, that then the mother part with its base plate is applied to the holding plate and finally the lateral limiting tabs to cover the side edges of the Base plate are bent around (EP 0 391 764 B1).
  • This manufacturing process is relatively expensive because it is separate produced individual parts for mounting the mother part in the correct position merged and then together in a further work step need to be connected.
  • the object of the invention is to produce the cage nut required To design and coordinate stamping and bending steps so that the Positioning the mother part as well as shearing off the board without Aid work can be carried out in one operation.
  • the holding part and the mother part on the same production tool produced in a continuous work sequence and the assembly of the Mother part can be integrated into the production tool.
  • boundary webs are corresponding the information in claim 2 at both ends of the perforated holding plate from the Board are punched out and bent up and according to claim 3 delimiting webs arranged on both sides of the connecting web be bent up so that the shear area - seen from the threaded part - ends with the outer surface of the curved boundary webs.
  • the cage nut shown in Figures 1 to 4 comprises a holding part 1 and a nut part 2 slidably mounted thereon, which consists of a base plate 3 and a threaded sleeve 4 molded therein.
  • the holding part 1 in turn consists of a holding plate 5 and a clamping leg 6 attached to it in a C-shape.
  • two limiting webs 7 and 8 are bent up over the edge of the base plate 3 on the holding plate 5 .
  • side walls 9 are formed on the holding plate 5 between the webs 7 and 8 on each side and, as can be seen from FIG. 2, are bent around over the edges 3 'of the base plate 3 such that the nut part 2 is guided in a longitudinally displaceable manner between the limiting webs 7 and 8 .
  • the cage nut can be plugged onto a carrier plate 10 with an oval fastening hole 11 and screwed by a screw 12 to the screwing area 13 of a component (not shown ) , tolerance compensation being made possible by the displaceable mounting of the nut part 2 on the holding part 1 becomes.
  • FIG. 5 shows the holding part 1 punched out of a sheet metal blank with the nut part 2 connected via a connecting web 14 , in which the threaded sleeve 4 is already formed by deep drawing.
  • the holding plate 5 and the clamping leg 6 each have an oval through hole 15 and 16 in the central axis.
  • the mother part 2 with its base plate 3 is bent around the connecting web 14 in the direction of the arrow M1 and pressed down between the already raised side walls 9 and the front and rear limiting webs 7 and 8 parallel to the holding plate 5 (FIG. 6).
  • the base plate 3 is separated from the holding plate 5 by the bent connecting web 14 being sheared off by a knife 18 which is moved in the direction of the arrow M 3 (FIG. 8th).
  • the shear area 17 is arranged so that - seen from the nut part 2 - it closes with the outer surface of the bent-up boundary webs 7 . In this way, the predominant part of the connecting web 14 that is no longer required can be cleanly separated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Dowels (AREA)
  • Automatic Assembly (AREA)
  • Forging (AREA)
  • Coating With Molten Metal (AREA)

Description

Die Erfindung bezieht sich auf ein Verfahren zur Herstellung einer zweiteiligen Käfigmutter aus einer Blechplatine, bestehend aus einem Halteteil und einem darauf verschiebbar gelagerten Mutterteil. Das Mutterteil kann hierbei sowohl mit einer Gewindehülse für metrisches Gewinde als auch mit einer eingängigen Blechgewindeprägung versehen sein. Die verschiebbare Lagerung des Mutterteils dient dem Zweck, daß die Mutter sich in gewissen Grenzen zur Schraubenachse ausrichten kann.The invention relates to a method for producing a two-part Cage nut made of a sheet metal plate, consisting of a holding part and a mother part slidably mounted on it. The mother part can both with a threaded sleeve for metric thread as well as with a catchy one Be stamped sheet metal thread. The sliding bearing of the mother part serves the purpose that the nut is within certain limits to the screw axis can align.

Die Herstellung erfolgt üblicherweise so, daß der Halteteil mit seinen seitlichen Begrenzungslappen (der sogenannte Käfig) und das Mutterteil getrennt voneinander ausgestanzt und gearbeitet werden, daß dann das Mutterteil mit seiner Grundplatte auf die Halteplatte aufgebracht wird und schließlich die seitlichen Begrenzungslappen bis zur Überdeckung der Seitenkanten der Grundplatte herumgebogen werden (EP 0 391 764 B1).The production is usually carried out so that the holding part with its side Boundary tab (the so-called cage) and the mother part separately punched out and worked from each other, that then the mother part with its base plate is applied to the holding plate and finally the lateral limiting tabs to cover the side edges of the Base plate are bent around (EP 0 391 764 B1).

Dieses Herstellungsverfahren ist verhältnismäßig teuer, da die getrennt hergestellten Einzelteile zum Montieren des Mutterteils zunächst lagerichtig zusammengeführt und dann in einem weiteren Arbeitsgang miteinander verbunden werden müssen.This manufacturing process is relatively expensive because it is separate produced individual parts for mounting the mother part in the correct position merged and then together in a further work step need to be connected.

Aufgabe der Erfindung ist es, die zur Herstellung der Käfigmutter erforderlichen Stanz- und Biegeschritte so zu gestalten und zu koordinieren, daß das Positionieren des Mutterteils sowie das Abscheren von der Platine ohne Hilfsarbeiten in einem Arbeitsgang durchgeführt werden kann.The object of the invention is to produce the cage nut required To design and coordinate stamping and bending steps so that the Positioning the mother part as well as shearing off the board without Aid work can be carried out in one operation.

Diese Aufgabe wird nach der vorliegenden Erfindung durch das im Patentanspruch 1 definierte Verfahren gelöst. This object is accomplished according to the present invention solved the method defined in claim 1.

Dadurch, daß das Mutterteil erst im letzten Arbeitsschritt von der Halteplatte getrennt wird, können Halteteil und Mutterteil auf dem gleichen Produktionswerkzeug in einer kontinuierlichen Arbeitsfolge hergestellt und die Montage des Mutterteils in das Produktionswerkzeug integriert werden.Because the mother part only in the last step from the holding plate is separated, the holding part and the mother part on the same production tool produced in a continuous work sequence and the assembly of the Mother part can be integrated into the production tool.

Hierbei ist es besonders vorteilhaft, wenn die Begrenzungsstege entsprechend den Angaben im Anspruch 2 an beiden Enden der gelochten Halteplatte aus der Platine ausgestanzt und hochgebogen werden und nach Anspruch 3 die beiderseits des Verbindungssteges angeordneten Begrenzungsstege so hochgebogen werden, daß der Abscherbereich - vom Gewindeteil aus gesehen - mit der Außenfläche der hochgebogenen Begrenzungsstege abschließt.It is particularly advantageous here if the boundary webs are corresponding the information in claim 2 at both ends of the perforated holding plate from the Board are punched out and bent up and according to claim 3 delimiting webs arranged on both sides of the connecting web be bent up so that the shear area - seen from the threaded part - ends with the outer surface of the curved boundary webs.

Das erfindungsgemäße Herstellungsverfahren und die nach diesem Verfahren hergestellte Käfigmutter soll nachfolgend anhand der Zeichnung beschrieben werden. Es zeigt:

Fig. 1
die erfindungsgemäß hergestellte Käfigmutter in Seitenansicht,
Fig. 2
die gleiche Käfigmutter im Schnitt nach Linie II-II in Figur 1,
Fig. 3
die gleiche Käfigmutter in Draufsicht,
Fig. 4
die Käfigmutter im Einsatz,
Fig. 5
ein aus der Blechplatine ausgestanztes Halteteil mit Mutterteil in Draufsicht und
Fig. 6 - 8
die erfindungsgemäße Montagefolge bei der Herstellung der Käfigmutter.
The manufacturing method according to the invention and the cage nut produced by this method will be described below with reference to the drawing. It shows:
Fig. 1
the cage nut produced according to the invention in side view,
Fig. 2
the same cage nut in section along line II-II in Figure 1,
Fig. 3
the same cage nut in top view,
Fig. 4
the cage nut in use,
Fig. 5
a punched out of the sheet metal holding part with the mother part in plan view and
6 - 8
the assembly sequence according to the invention in the manufacture of the cage nut.

Die in den Figuren 1 bis 4 dargestellte Käfigmutter umfaßt ein Halteteil 1 und ein darauf verschiebbar gelagertes Mutterteil 2, welches aus einer Grundplatte 3 und einer darin eingeformten Gewindehülse 4 besteht.The cage nut shown in Figures 1 to 4 comprises a holding part 1 and a nut part 2 slidably mounted thereon, which consists of a base plate 3 and a threaded sleeve 4 molded therein.

Das Halteteil 1 besteht seinerseits aus einer Halteplatte 5 und einem daran C-förmig angesetzten Klemmschenkel 6. Auf der Halteplatte 5 sind zur Begrenzung des Verschiebeweges der Grundplatte 3 vor und hinter dieser Grundplatte je zwei Begrenzungsstege 7 und 8 bis über den Rand der Grundplatte 3 hochgebogen. Außerdem sind an der Halteplatte 5 zwischen den Stegen 7 und 8 auf jeder Seite Seitenwände 9 angeformt und, wie aus Figur 2 ersichtlich, über die Kanten 3' der Grundplatte 3 derart herumgebogen, daß das Mutterteil 2 zwischen den Begrenzungsstegen 7 und 8 längsverschieblich geführt ist.The holding part 1 in turn consists of a holding plate 5 and a clamping leg 6 attached to it in a C-shape. In order to limit the displacement of the base plate 3 in front of and behind this base plate, two limiting webs 7 and 8 are bent up over the edge of the base plate 3 on the holding plate 5 . In addition, side walls 9 are formed on the holding plate 5 between the webs 7 and 8 on each side and, as can be seen from FIG. 2, are bent around over the edges 3 'of the base plate 3 such that the nut part 2 is guided in a longitudinally displaceable manner between the limiting webs 7 and 8 .

Wie aus Figur 4 ersichtlich, kann die Käfigmutter auf einer Trägerplatte 10 mit einem ovalen Befestigungsloch 11 aufgesteckt und durch eine Schraube 12 mit dem Verschraubungsbereich 13 eines nicht dargestellten Bauteils verschraubt werden, wobei durch die verschiebbare Lagerung des Mutterteils 2 auf dem Halteteil 1 ein Toleranzausgleich ermöglicht wird.As can be seen from FIG. 4, the cage nut can be plugged onto a carrier plate 10 with an oval fastening hole 11 and screwed by a screw 12 to the screwing area 13 of a component (not shown ) , tolerance compensation being made possible by the displaceable mounting of the nut part 2 on the holding part 1 becomes.

Figur 5 zeigt das aus einer Blechplatine ausgestanzte Halteteil 1 mit über einem Verbindungssteg 14 verbundenen Mutterteil 2, bei welchem die Gewindehülse 4 bereits durch Tiefziehen ausgeformt ist. Die Halteplatte 5 sowie der Klemmschenkel 6 weisen in der Mittelachse je ein ovales Durchgangsloch 15 und 16 auf.FIG. 5 shows the holding part 1 punched out of a sheet metal blank with the nut part 2 connected via a connecting web 14 , in which the threaded sleeve 4 is already formed by deep drawing. The holding plate 5 and the clamping leg 6 each have an oval through hole 15 and 16 in the central axis.

Wie aus der Montagefolge nach den Figuren 6 bis 8 ersichtlich, erfolgt die Ausformung und der Zusammenbau der Käfigmutter in folgenden Verfahrensschritten:As can be seen from the assembly sequence according to FIGS. 6 to 8, the Forming and assembling the cage nut in the following Process steps:

Zunächst wird das Mutterteil 2 mit seiner Grundplatte 3 um den Verbindungssteg 14 in Richtung des Pfeiles M1 herumgebogen und zwischen die bereits hochgestellten Seitenwände 9 und die vorderen und hinteren Begrenzungsstege 7 und 8 parallel zur Halteplatte 5 niedergedrückt (Figur 6). First, the mother part 2 with its base plate 3 is bent around the connecting web 14 in the direction of the arrow M1 and pressed down between the already raised side walls 9 and the front and rear limiting webs 7 and 8 parallel to the holding plate 5 (FIG. 6).

Sodann werden die beiden Seitenwände 9 in Richtung der Pfeile M2 bis zur Überdeckung der Seitenkanten 3' der Grundplatte 3 herumgebogen, wobei zwischen den Seitenkanten 3' und den Seitenwänden 9 gerade soviel Abstand verbleibt, daß die Grundplatte 3 auf der Halteplatte 5 leicht verschiebbar ist (Figur 7).Then the two side walls 9 are bent in the direction of the arrows M2 until the side edges 3 'of the base plate 3 overlap, with just enough distance remaining between the side edges 3' and the side walls 9 that the base plate 3 is easily displaceable on the holding plate 5 ( Figure 7).

Nachdem die Gewindehülse 4 mit Grundplatte 3 auf der Halteplatte 5 ihren Platz gefunden hat, wird die Grundplatte 3 von der Halteplatte 5 getrennt, indem der umgebogene Verbindungssteg 14 durch ein Messer 18 abgeschert wird, welches in Richtung des Pfeiles M 3 bewegt wird (Fig.8). Hierbei ist der Abscherbereich 17 so angeordnet, daß er - vom Mutterteil 2 aus gesehen - mit der Außenfläche der hochgebogenen Begrenzungsstege 7 abschließt. So kann der überwiegende Teil des nicht mehr benötigten Verbindungssteges 14 sauber abgetrennt werden.After the threaded sleeve 4 with the base plate 3 has found its place on the holding plate 5 , the base plate 3 is separated from the holding plate 5 by the bent connecting web 14 being sheared off by a knife 18 which is moved in the direction of the arrow M 3 (FIG. 8th). Here, the shear area 17 is arranged so that - seen from the nut part 2 - it closes with the outer surface of the bent-up boundary webs 7 . In this way, the predominant part of the connecting web 14 that is no longer required can be cleanly separated.

Claims (3)

  1. A process for the production of a two-part captive nut from a sheet metal plate having a holding portion (1) and a nut portion (2) which is mounted displaceably thereon and which comprises a base plate (3) and a screwthreaded sleeve (4) formed therein, wherein side walls (9) of the apertured holding plate (5) of the holding portion (1) are bent round over the edge of the base plate (3), characterised in that a sheet metal portion is stamped out of a sheet metal plate, wherein the sheet metal portion has a blank of the holding portion (1) and a blank of the nut portion (2), and wherein the blanks are connected together in one piece by way of a narrow bar portion (14) between the later holding plate (5) and the later base plate (3), that firstly the side walls (9) are set up approximately at a right angle, that the base plate (3) is then bent over around the bar portion (14) and pressed down between the upstanding side walls (9) in parallel relationship to the holding plate (5), that then the side walls (9) are bent over until they overlap the side edges (3') of the base plate (3) and finally the base plate (3) is separated from the holding plate (5) by shearing off the bent-over bar portion (14).
  2. A process for the production of a two-part captive nut according to claim 1 characterised in that to limit the longitudinal movement of the base plate (3) two bar portions (7 and 8) are stamped out of the holding plate (5) on each respective side and are bent up to above the edges (3') of the base plate (3).
  3. A process for the production of a two-part captive nut according to claim 2 characterised in that the two limiting bar portions (7) are bent up on both sides of the connecting bar portion (14) in such a way that the shearing-off region (17) of the connecting bar portion (14) - viewed from the screwthreaded portion (2)-terminates with the outside surface of the upwardly bent limiting bar portions (7).
EP95113814A 1994-09-20 1995-09-02 Method of manufacturing a two-part cage nut Expired - Lifetime EP0703021B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4433470 1994-09-20
DE4433470A DE4433470C1 (en) 1994-09-20 1994-09-20 Method of making a two-part cage nut

Publications (3)

Publication Number Publication Date
EP0703021A2 EP0703021A2 (en) 1996-03-27
EP0703021A3 EP0703021A3 (en) 1996-06-12
EP0703021B1 true EP0703021B1 (en) 1999-02-17

Family

ID=6528679

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95113814A Expired - Lifetime EP0703021B1 (en) 1994-09-20 1995-09-02 Method of manufacturing a two-part cage nut

Country Status (7)

Country Link
US (1) US5624319A (en)
EP (1) EP0703021B1 (en)
JP (1) JP2644462B2 (en)
BR (1) BR9504073A (en)
CZ (1) CZ285474B6 (en)
DE (1) DE4433470C1 (en)
ES (1) ES2130486T3 (en)

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Publication number Priority date Publication date Assignee Title
DE202010012019U1 (en) 2010-08-31 2010-12-02 Acument Gmbh & Co. Ohg Käfigmutter
WO2012048686A1 (en) 2010-08-31 2012-04-19 Ruia Global Fasteners Ag Cage nut

Also Published As

Publication number Publication date
EP0703021A2 (en) 1996-03-27
JP2644462B2 (en) 1997-08-25
EP0703021A3 (en) 1996-06-12
BR9504073A (en) 1996-09-24
ES2130486T3 (en) 1999-07-01
DE4433470C1 (en) 1996-02-15
US5624319A (en) 1997-04-29
CZ244595A3 (en) 1996-04-17
JPH08187537A (en) 1996-07-23
CZ285474B6 (en) 1999-08-11

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