EP1572394B1 - Bouchon a vis metallique, procede pour le produire, ebauche utilisee a cette fin et outil correspondant - Google Patents

Bouchon a vis metallique, procede pour le produire, ebauche utilisee a cette fin et outil correspondant Download PDF

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Publication number
EP1572394B1
EP1572394B1 EP03813103A EP03813103A EP1572394B1 EP 1572394 B1 EP1572394 B1 EP 1572394B1 EP 03813103 A EP03813103 A EP 03813103A EP 03813103 A EP03813103 A EP 03813103A EP 1572394 B1 EP1572394 B1 EP 1572394B1
Authority
EP
European Patent Office
Prior art keywords
screw plug
pipe
pipe butt
blank
external thread
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
EP03813103A
Other languages
German (de)
English (en)
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EP1572394A1 (fr
Inventor
Hartmut Flaig
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 DE10321544A external-priority patent/DE10321544A1/de
Application filed by Individual filed Critical Individual
Priority to EP10011923.9A priority Critical patent/EP2292900B1/fr
Priority to DE20321307U priority patent/DE20321307U1/de
Publication of EP1572394A1 publication Critical patent/EP1572394A1/fr
Application granted granted Critical
Publication of EP1572394B1 publication Critical patent/EP1572394B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
    • F01M11/04—Filling or draining lubricant of or from machines or engines
    • F01M11/0408—Sump drainage devices, e.g. valves, plugs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
    • B21J5/12—Forming profiles on internal or external surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00—Making machine elements
    • B21K1/44—Making machine elements bolts, studs, or the like
    • B21K1/46—Making machine elements bolts, studs, or the like with heads
    • B21K1/463—Making machine elements bolts, studs, or the like with heads with recessed heads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K21/00—Making hollow articles not covered by a single preceding sub-group
    • B21K21/08—Shaping hollow articles with different cross-section in longitudinal direction, e.g. nozzles, spark-plugs

Definitions

  • the invention relates to a method for producing a screw plug made of metallic material for a fluid line - in particular for an oil line or an oil vessel - with a cylindrical shaft containing an external thread on a ridge plate, in which centrally provided a blind hole polygonal cross-section as a receiving member for a tool is.
  • the GB-A-1 274 754 shows a metallic screw plug.
  • Screw plugs of this type are mainly used in motor vehicles and must therefore be produced in large quantities. It has proven to be favorable so far that their production must be carried out in at least three stages of production. To improve this improvement is the object of the invention.
  • the shaft is designed as a tube stump provided with the external thread, and a blind hole coaxial with the usual blind hole of the ridge plate emerges from the end face of the shaft of the locking screw.
  • the ridge plate achscite - at a longitudinal angle of preferably 30 ° - inclined and widening firstward phase section as a transition to the pipe stump the rohr maybertige foot contour of this phase section at the same time - constructive - inner approach line for over this contour radially protruding external thread should be. Otherwise, a diameter of the foot contour of the phase section of 19.5 mm is preferred.
  • the depth of the wall surface should be about 8 mm, in particular 7.8 mm.
  • the diameter of the blind hole measures approximately 14 mm and the external diameter of the external thread measures approximately 21 mm; the dimensions should in particular cover the values of 13.8 mm or 20.97 mm.
  • the shaping of the closure screw which can be produced by the method according to the invention also comprises at least one, and preferably one on both sides, a phase edge inclined away from this tube edge toward the ridge plate, the outer phase edge merging into the external thread should.
  • this screw plug in which a blank is produced with an integrally formed on a ridge plate subsequent cylindrical stump, the inner diameter and outer diameter are formed shorter than the intended, this corresponding diameter of the screw plug; the tube stump of the blank is widened by simultaneously creating pressure on the inner wall surface of its blind hole.
  • a plunger is driven as a mandrel tool in the blind hole of Röhlingrohrstumpfes and radially widened by this wall of the pipe stump.
  • the blank used for the process for producing the closure screw in this connects to the ridge plate a cylindrical pipe stub of an outer diameter and a diameter of the blind hole, the dimensions of which are shorter than the outer diameter and the hole diameter of the actual screw plug;
  • the diameter of the blind hole should measure about 12 mm and the outer diameter of the pipe stump about 19 mm, preferably 19.2 mm.
  • the dimensional difference to the final product is compensated by the expansion process.
  • the outer diameter of the pipe stub on the blank shorter than the foot diameter of the phase section on the screw plug; the latter - as well as the phase section of the blank - should enclose an angle with the blank longitudinal axis, which preferably measures about 30 °.
  • the pipe edge of the pipe stump on both sides is assigned in each case one of the pipe edge inclined away phase edge, wherein the outer phase edge merges into the cylindrical pipe outer surface.
  • a plunger is set as a mandrel tool at one end in a housing and the free end of a relatively movably arranged support or holding head associated with a receptacle for a blank; the axis of which runs in the central axis of the tool or the plunger. It is also beneficial that at the that the support or holding head far end of the sleeve-like housing, a stationary base plate is provided which forms an abutment for her seated plunger.
  • the free end of the plunger partially surrounded by a plunger tube is intended to engage in a central bore of the support or holding head, a printhead of the plunger then projecting axially beyond the mouth edge of the plunger tube.
  • this stamp tube at the other end - preferably with a disc base - a stationary stationary sleeve of the tool is seated, which forms a support surface for the stationary sleeve passing through plunger.
  • a central pressure base can be formed on that base plate, which forms a common abutment for the plunger and the stand sleeve.
  • the carrying or holding head of the tool is seated on a sliding sleeve, which is associated coaxially with the pressure ram and the stationary sleeve.
  • the diameter of the pressure base should then correspond approximately to the seated diameter of the sliding sleeve.
  • the latter has, moreover, on a base portion assigned to the pressure base, a head portion which is radially widened relative to the latter and is intended to be held in a retaining manner by the holding head by a guide chuck and to be arranged so that it can move axially relative to the housing.
  • a force store is arranged according to the invention between these tool parts, in particular a profile element of elastic material.
  • This profile element is preferably placed annularly around the pressure base of the base plate and can be made of strands of material of different cross-sectional shape.
  • the blank sitting in the supporting or holding head blank can be pressed in its axial movement on the print head of the plunger, wherein the diameter of the plunger is greater than the diameter of the blind hole in the blank, i. when inserting the plunger, the blank expands.
  • a screw plug 10 for a not shown for reasons of clarity oil line or oil tank of a motor vehicle has on a plate-like ridge plate 12 axial height b of 4.5 mm and the diameter d of about 27 mm to the longitudinal axis A of the screw plug 10 axially integrally formed pipe stump 14th the outer diameter f of 20.97 mm; the axial height a of the screw plug 10 measures 19 mm, from which a height c of the tube stump 14 of 14.5 mm is calculated.
  • Such an inclined phase edge 17 also surrounds the tube edge 16 from the outside and merges into an external thread 22 of that external diameter f of 20.97 mm and the height h of 12 mm.
  • At the upper edge of the external thread 22 includes a molded, to the ridge plate 12 in a cross-sectional angle w of 30 ° (s. Fig. 3 ) conically expanding phase portion 24 axial height i of 2.5 mm. Its randissertiger foot diameter g measures 19.5 mm.
  • the external thread 22 attaches to the rohr maybertige foot contour 25 of the phase portion 24 and protrudes radially beyond this.
  • a central blind hole 28 hexagonal cross-section of the diameter z of about 4.8 mm (SW 10) and the wall depth y of 7 mm. Its hole deepest 30 is also centrally inclined from the wall surface 29 to the screw longitudinal axis A, also forming a flat conical surface. In this first blind hole 28 is used to rotate the screw plug 10 a - not reproduced in the drawing - tool.
  • the screw plug 10 is a in Fig. 3 illustrated blank 34 made of metal (for example, from 19 MnB 4 ) made of - the ridge blind hole 28 containing - ridge plate 12 and an integrally formed thereon cylindrical tube stub 36; while the ridge plate 12 in its and its blind hole 30 dimension (b, d, y, z) corresponds to that of the finished screw 10, the tube stub 36 of the blank 34 is different to the tube stub 14 designed.
  • the pipe outer surface 38 is here at the end of the ridge plate 12 far end - also the final dimensions g, w having - inclined phase portion 24 at; the diameter f 1 of its cylindrical contour is 19.2 mm, that is to 1.77 mm shorter than the outer diameter f of the finished screw plug 10.
  • the diameter e 1 of the existing in the blank 34, to the inner phase edge 15 a of the pipe edge 16 a subsequent blind hole 18 a measures 12 mm, that is 1.8 mm shorter than the diameter e of the finished screw plug 10.
  • the outer phase edge is denoted here by 17 a .
  • a tool 40 for a preferred way of producing the screw plug 10 is the 4 to 6 refer to.
  • Coaxial with its central axis M is a cylindrical tool housing 42 of the exemplary outer diameter q of 120 mm, a base plate 44 with centrally formed pressure base 46 of a diameter q 1 of 60 mm and a height n 1 of 21.5 mm and associated with a radial stepped bore 45.
  • This axial bore 47, 47 t receives a plunger 50 as a mandrel tool, the above the standing sleeve 48 a plunger tube 54 of length n of almost 60 mm from a pipe section 55 with this integrally formed Tellerfuß 57 of diameter t 3 of about 40 mm surrounds; the outer pipe diameter t 2 measures 21 mm, the inner diameter t of the pipe interior 58 about 14 mm. The latter continues downwards through those axial bores 47 of the stationary sleeve 48.
  • a sliding sleeve 60 of a height of about twice the length n 2 mentioned above is attached to the outside; the lower edge 62 sits in Fig. 5 the centric pressure base 46 of the base plate 44.
  • the cylindrical outer surface of the lower half and the foot portion 64 t of the sliding sleeve 60 continues the outer surface of the pressure base 46 and defines a cylindrical cavity 63.
  • n 2 of the stationary sleeve 48 approximately corresponding distance to that lower edge 62 starts a wider head portion 64th the sliding sleeve 60, which carries on its ridge end 66 a holding head 68 - upwardly tapered cross-section - with a central bore 70; this takes up the upper end of the tube section 55 of the plunger tube 54, whose outer diameter t 2 determines the diameter of the bore 70.
  • the height n 3 of the holding head 68 is slightly shorter than the length n 2 of the stationary sleeve 48.
  • a space filling, also sleeve-like guide chuck 80 This encloses the sliding sleeve 60 and the holding head 64 conclusive and can be moved together with these inner parts together as a unit in the tool housing 42 become.
  • a thread 81 for a threaded sleeve 84 which extends in that cavity 63.
  • the ridge portion of the bore 70 is adapted in cross-section to the structural design of the screw plug 10, ie the diameter of the bore 70 corresponds with a small clearance - the outer diameter f of the tube stump 14 of the screw plug 10 and expands approximately in the axial height b of the ridge plate 12 corresponding distance from the end face 76 of the holding head 68 of a conical ring plane 72 of the bore wall 71 - corresponding to the inclined phase portions 24 of the screw plug 10 - up to a step 74, according to which Fig. 4 the ridge plate 12 of the blank 34 is placed.
  • the circumference of the pipe stub 36 extends in a ring distance to the bore wall 71 of the central bore 70th
  • this insertion process is the phase edge 15 a of the blank 34 - at a distance from the mouth edge 56 of the tube section 55 - on the corresponding inwardly inclined ridge or phase edge 51 of the endisertigen section or print head 52 of the plunger 50, which the mouth edge 56 of the punch tube 54th surmounted accordingly.
  • the diameter of this Firstrandes 51 corresponds to the diameter e of the blind hole 18 of the screw plug 10, that is greater than the corresponding diameter e 1 on the blank 34th
  • the guide chuck 80 is lowered within the housing 42 in the direction x to the base plate 44 against a indicated at 78 profile ring approximately circular cross section of elastic material, ie the distance s between them is reduced, the punch or printhead 52 of the stationary plunger 50 into the blind hole 18 a of the blank 34 penetrates and the tube stub 36 expands until the outer surface 38 of the bore wall 71 of the bore 70 is present.
  • the dimension k of here 7 mm of the pressure path is in Fig. 5 recognizable.
  • Those arranged between the base plate 44 and guide plate 80 profile ring 78 may be otherwise configured cross-section otherwise than in Fig. 5 outlined; optionally it is designed as a hollow profile.
  • the not quite finished screw plug 10 r is removed from the holding head 68 and its expanded pipe stub 36 equipped with the external thread 22; then the screw plug 10 is ready for use.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Forging (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Closures For Containers (AREA)

Abstract

La présente invention concerne un bouchon à vis (10) pour une conduite à liquide, notamment pour une conduite à huile ou un réservoir à huile, comprenant une tige cylindrique (36) qui présente un filetage extérieur (22) sur une plaque de partie supérieure (12) dans laquelle se trouve de manière centrale un trou borgne (28) de section transversale polygonale, servant d'organe de réception pour un outil. Ladite tige (36) est conçue sous forme d'ergot tubulaire (14) présentant le filetage extérieur (22). Un trou borgne (18) coaxial à chaque trou borgne (28) de la plaque de partie supérieure (12) sort de la face (16) de la tige. Le procédé pour produire ce bouchon à vis (10) consiste à produire une ébauche avec l'ergot cylindrique (36) moulé de façon à être raccordé à la plaque de partie supérieure (12). Le diamètre intérieur et le diamètre extérieur de cette ébauche sont inférieurs au diamètre (e, f) correspondant finalement prévu du bouchon à vis (10). L'ergot cylindrique (36) de l'ébauche est ensuite élargi par production de pression sur la surface de paroi interne de son trou borgne. Dans l'outil utilisé pour ce procédé, un piston de compression servant d'outil de poinçonnage est fixé à une extrémité dans un logement et une tête de support ou de maintien pouvant effectuer un mouvement relatif par rapport à celui-ci et présentant un logement pour une ébauche est associée à son extrémité libre.

Claims (11)

  1. Procédé de fabrication d'un bouchon à vis pour une conduite de liquide, notamment pour une conduite d'huile ou un récipient d'huile, comprenant une tige cylindrique (36) contenant un filetage externe (22) sur une plaque de faîte (12), dans laquelle est prévu centralement un trou borgne (28) de section transversale polygonale servant d'organe de réception pour un outil, la tige (36) étant réalisée sous forme de bout de tube (14) pourvu du filetage externe (22) et un trou borgne (18) coaxial au trou borgne (28) de la plaque de faîte (12) partant de la face frontale (16) de la tige, le bouchon à vis se composant d'un matériau métallique et présentant une portion biseautée (24) inclinée vers l'axe depuis la plaque de faîte (12) et servant de transition avec la tige (36), caractérisé en ce qu'une ébauche (34) est produite avec un bout de tube (36) cylindrique se raccordant à et façonné sur une plaque de faîte (12), dont le diamètre intérieur (e1) et le diamètre extérieur (f1) sont plus courts que les diamètres correspondants prévus (e, f) du bouchon à vis (10), et en ce que le bout de tube (36) de l'ébauche est élargi en produisant une pression sur la surface de paroi interne (19a) de son trou borgne (18a), et en ce que la surface extérieure du bout de tube (36), lors de son élargissement, est pressée contre une face de moule l'entourant avec un filetage négatif, ou en ce que le filetage externe (22) est formée par une opération séparée de filetage par roulage.
  2. Procédé selon la revendication 1, caractérisé en ce que dans le trou borgne (18a) du bout de tube (36) de l'ébauche (34) est introduite une portion (52) d'un poinçon de pression (50) servant d'outil de mandrin, qui dépasse dans sa section transversale du diamètre intérieur (e1) de l'ébauche, et le bout de tube est élargi radialement par celui-ci et/ou, en ce que la surface extérieure (38) du bout de tube (36) est pressée radialement au-delà du contour de la base (25) d'une portion biseautée (24) inclinée vers l'axe en section transversale et se raccordant à la plaque de faîte (12).
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce qu'un filetage externe (22) est formé dans la surface extérieure tubulaire (38) du bout de tube élargi (36).
  4. Procédé selon la revendication 3, caractérisé en ce que le filetage externe (22) est formé dans la région du bout de tube (36) prévue vers l'axe depuis le contour de base (25) de la portion biseautée (24), et/ou en ce que le filetage externe (22) est formé dans la surface extérieure (38) du bout de tube (36) sur le chemin du filetage par roulage.
  5. Procédé selon la revendication 4, caractérisé en ce que la surface extérieure (38) du bout de tube (36) est pressée contre un outil de façonnage qui l'entoure.
  6. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que le bouchon à vis est réalisé de telle sorte que le contour de base vers le tube (25) de la portion biseautée (24) est une ligne de départ intérieure pour le filetage extérieur (22) saillant radialement au-delà de ce contour.
  7. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que le bouchon à vis est réalisé de telle sorte que la portion biseautée (24) s'élargissant vers le faîte du bouchon à vis (10) forme avec l'axe longitudinal de la vis (A) en coupe longitudinale un angle (w) qui vaut de préférence environ 30°.
  8. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que le bouchon à vis est fabriqué avec un diamètre (g) du contour de base (25) de la portion biseautée (24) de 19,5 mm.
  9. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que le bouchon à vis est réalisé de telle sorte que la plus grande profondeur de trou (20) du trou borgne (18) du bout de tube (14) présente une section transversale inclinée depuis sa surface de paroi (19) vers l'axe longitudinal de la vis (A), une profondeur (c) de la surface de paroi (19) d'environ 8 mm, notamment de 7,8 mm étant éventuellement prévue.
  10. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que le bouchon à vis est fabriqué avec un diamètre (e) du trou borgne (18) d'environ 14 mm et un diamètre extérieur (f) du filetage externe (22) d'environ 21 mm, en particulier de 13,8 mm ou de 20,97 mm.
  11. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que le bouchon à vis est réalisé de telle sorte que l'on associe au bord du tube (16) au moins un bord biseauté (15, respectivement 17) partant de celui-ci et incliné vers le faîte, un bord biseauté respectif (15, 17) partant du bord du tube et incliné vers le faîte, se prolongeant de préférence dans le filetage externe (22), étant éventuellement associé des deux côtés au bord du tube (16).
EP03813103A 2002-12-16 2003-11-29 Bouchon a vis metallique, procede pour le produire, ebauche utilisee a cette fin et outil correspondant Expired - Lifetime EP1572394B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP10011923.9A EP2292900B1 (fr) 2002-12-16 2003-11-29 Bouchon métallique comprenant un filetage
DE20321307U DE20321307U1 (de) 2002-12-16 2003-11-29 Verschlussschraube aus metallischem Werkstoff sowie Rohling und Werkzeug für deren Herstellung

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE10258994 2002-12-16
DE10258994 2002-12-16
DE10321544A DE10321544A1 (de) 2002-12-16 2003-05-14 Verschlussschraube aus metallischem Werkstoff, Verfahren zu deren Herstellung, Rohling dafür sowie Werkzeug dazu
DE10321544 2003-05-14
PCT/EP2003/013470 WO2004054739A1 (fr) 2002-12-16 2003-11-29 Bouchon a vis metallique, procede pour le produire, ebauche utilisee a cette fin et outil correspondant

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP10011923.9A Division EP2292900B1 (fr) 2002-12-16 2003-11-29 Bouchon métallique comprenant un filetage
EP10011923.9 Division-Into 2010-09-30

Publications (2)

Publication Number Publication Date
EP1572394A1 EP1572394A1 (fr) 2005-09-14
EP1572394B1 true EP1572394B1 (fr) 2011-07-20

Family

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EP03813103A Expired - Lifetime EP1572394B1 (fr) 2002-12-16 2003-11-29 Bouchon a vis metallique, procede pour le produire, ebauche utilisee a cette fin et outil correspondant

Country Status (5)

Country Link
US (2) US20060153661A1 (fr)
EP (1) EP1572394B1 (fr)
AU (1) AU2003303028A1 (fr)
PL (1) PL205265B1 (fr)
WO (1) WO2004054739A1 (fr)

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USD752839S1 (en) * 2013-11-04 2016-03-29 Deep Wood Brew Products, LLC Mini-keg growler neck without cap
US9428720B2 (en) 2013-11-08 2016-08-30 Deep Wood Brew Products, LLC Mini-keg growler
CN104121058B (zh) * 2014-07-10 2018-07-20 安徽江淮汽车集团股份有限公司 一种发动机润滑系统及其油道密封组件
DE102019116338B3 (de) * 2019-06-17 2020-08-20 SF Handels- und Besitzgesellschaft mbH Verfahren zur Herstellung eines Schraubelementrohlings sowie eines Schraubelements und Schraubelementrohling sowie Schraubelement

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US20110314887A1 (en) 2011-12-29
PL375866A1 (en) 2005-12-12
EP1572394A1 (fr) 2005-09-14
US20060153661A1 (en) 2006-07-13
PL205265B1 (pl) 2010-03-31
US9567882B2 (en) 2017-02-14
WO2004054739A1 (fr) 2004-07-01
AU2003303028A1 (en) 2004-07-09

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