EP1469972A1 - Dispositif de cylindrage d'une machine de cylindrage pour vilebrequins - Google Patents

Dispositif de cylindrage d'une machine de cylindrage pour vilebrequins

Info

Publication number
EP1469972A1
EP1469972A1 EP02791800A EP02791800A EP1469972A1 EP 1469972 A1 EP1469972 A1 EP 1469972A1 EP 02791800 A EP02791800 A EP 02791800A EP 02791800 A EP02791800 A EP 02791800A EP 1469972 A1 EP1469972 A1 EP 1469972A1
Authority
EP
European Patent Office
Prior art keywords
deep rolling
roller head
support roller
deep
support rollers
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.)
Granted
Application number
EP02791800A
Other languages
German (de)
English (en)
Other versions
EP1469972B1 (fr
Inventor
Siegfried Bagusche
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.)
Hegenscheidt MFD GmbH and Co KG
Original Assignee
Hegenscheidt MFD 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 Hegenscheidt MFD GmbH and Co KG filed Critical Hegenscheidt MFD GmbH and Co KG
Publication of EP1469972A1 publication Critical patent/EP1469972A1/fr
Application granted granted Critical
Publication of EP1469972B1 publication Critical patent/EP1469972B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H7/00—Making articles not provided for in the preceding groups, e.g. agricultural tools, dinner forks, knives, spoons
    • B21H7/18—Making articles not provided for in the preceding groups, e.g. agricultural tools, dinner forks, knives, spoons grooved pins; Rolling grooves, e.g. oil grooves, in articles
    • B21H7/182—Rolling annular grooves
    • B21H7/185—Filet rolling, e.g. of crankshafts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B39/00—Burnishing machines or devices, i.e. requiring pressure members for compacting the surface zone; Accessories therefor
    • B24B39/04—Burnishing machines or devices, i.e. requiring pressure members for compacting the surface zone; Accessories therefor designed for working external surfaces of revolution
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/17—Crankshaft making apparatus

Definitions

  • the invention relates to a deep rolling device of a deep rolling machine for crankshafts, which is designed in a scissor-type construction and in which two pivotable scissor arms opposite one another each carry a deep rolling roller head or a support roller head, the support roller head being provided with two support rollers arranged axially parallel, the axes of rotation of which are in a common one Lay level, with a drive direction that generates the closing and opening movement of the deep rolling device and the deep rolling force.
  • Deep rolling devices of the aforementioned type are known from German patent DE 197 22 308 Cl, which has the object of a deep rolling machine for crankshafts.
  • each main and connecting rod bearing journal of a crankshaft is assigned a deep rolling device.
  • the construction of the known deep rolling machine is designed so that when each deep rolling device is closed, the support rollers of the support roller head and then the ' deep rolling rollers of the deep rolling roller head are pressed onto one of the main or connecting rod journals of a crankshaft.
  • the support roller head and the deep rolling roller head perform an infeed movement and a swivel movement in each case.
  • the swiveling movement of the support roller and the deep roller head in the closing sense is associated with the risk that the support roller and the deep roller head may collide with the crankshaft in the area of an Olbund, since the clearances between the support roller and the deep roller head on the one hand and the two oil bundles of a main or connecting rod bearing pin, on the other hand, are scarce
  • the invention has for its object to design a deep rolling device of the type mentioned in such a way that the pivoting movement of the support roller and the deep rolling roller head in the closing sense cannot trigger a collision with the crankshaft in the region of an oil collar.
  • the support roller head has at least one axial guide which is arranged in the pivoting direction for closing the scissor arm carrying the support rollers, the longitudinal axis of which is perpendicular to the axis of rotation of the crankshaft and is in a direction which is flush with the plane the axes of rotation of the support rollers enclose an acute angle, and their axial width is greater than the width of the support roller head and slightly smaller than the distance between the oil collars of a main or connecting rod bearing journal.
  • Such an orientation of the deep rolling device ensures that the pivoting movement of the deep rolling roller head in the closing sense cannot lead to a collision of the deep rolling roller head with the crankshaft in the region of an oil collar.
  • the axial guide is at a distance from the common plane.
  • the outer contour of the axial guide can also have other shapes and e.g. be spherical or composed of several geometric shapes.
  • axial guides can be provided instead of a single one, which are arranged next to one another and fill the free space which is circumscribed by two adjacent oil collars.
  • Two axial guides are usual, the outer width of which is dimensioned so that both axial guides fit into the space between the oil collars with little lateral play.
  • Such an arrangement also has the advantage that the axial guides are relatively small. This will At the same time, the lateral friction between the axial guides and the oil collars is reduced.
  • Fig. 1 shows a section through a deep rolling machine with a partial view of a
  • Deep rolling device assumes its open position in relation to an inserted crankshaft
  • Fig. 2 shows the section through the deep rolling machine
  • Fig. 3 shows a detail A from Fig. 2 in an enlarged
  • Fig. 4 shows a section along the line IV - IV in
  • FIG. 5 shows a section analogous to FIG. 3 with a special arrangement of the axial guide
  • FIG. 6 shows a first embodiment of an axial guide in longitudinal section
  • Fig. 7 is a plan view of the embodiment of the
  • Fig. 8 shows a second embodiment of the axial guide in
  • a deep rolling machine 1 is designed with a drive device (not shown) which is used to receive a serves with a crankshaft transport device 2 inserted in the deep rolling machine 1 crankshaft 3.
  • the drive device produces the rotary movement of the crankshaft 3 about its axis 4 during the deep rolling of the main 5 and connecting rod bearing journals 6.
  • the axis 4 is thus in the axis of rotation 7 of the drive device.
  • the present exemplary embodiment is limited to the deep rolling of a main bearing journal 5 of the crankshaft 3, since this is sufficient to explain the subject matter of the invention.
  • the main bearing journal 5 is assigned a deep rolling device 8 which, in a scissor-type construction with two scissor arms 9, 10, a scissor pivot point 11, one
  • a deep rolling roller head 13 and a support roller head 14 is provided.
  • the deep rolling roller head 13 and the support roller head 14 cannot be moved individually in the direction along the axis of rotation 4. Rather, they are only arranged and adjustable in certain planes of the deep rolling machine 1, which correspond to the respective position of the main bearing journal 5 or connecting rod journal 6 to be machined along the axis of rotation 4 of the crankshaft 3. Such a plane is shown for example in FIG. 3 and FIG. 4.
  • the drive device 12 for the deep rolling device 8 has an adjusting cylinder 15 and a power device 16.
  • the adjusting cylinder 15 generates the closing and opening movement of the scissors 9, 10 of the deep rolling device 8 described above; the power device 16 the deep rolling force. By dividing the movements generated by the cylinders 15 and 16, a particularly narrow construction of the deep rolling device 8 is obtained.
  • the deep rolling device 8 is articulated via an articulation point 17 to an angle lever 19 which can be pivoted about an axis 18.
  • the angle lever 19 can be pivoted with the aid of a piston-cylinder unit 20.
  • the deep rolling device 8 is brought into and out of the working position, i.e. moved in the direction and opposite direction of the axis 4 of the crankshaft 3.
  • the deep rolling machine 1 is designed so that when the deep rolling device 8 is closed, the two axially parallel support rollers 21 and 22 of the support roller head 14 and then the two deep rolling rollers 23 and 24 of the deep rolling roller head 13 come to rest on the main bearing journal 5.
  • the support roller head 14 performs a pivoting movement 35 in the counterclockwise direction and the deep rolling roller head 13 performs a pivoting movement 36 in a clockwise direction about the scissor pivot point 11.
  • Both pivoting movements 35 and 36 are made in the direction of moving point 17 the axis 4 is executed simultaneously and the closed position is reached at its respective end, as shown in FIG. 2.
  • the closed position corresponds to the working position of the deep rolling device 8.
  • an axial guide 27 is arranged at an acute angle 37 between 0 and 45 ° to the plane 34, which contains the two axes of rotation 32 and 33 of the two support rollers 21 and 22.
  • the longitudinal axis 41 of the axial guide 27 is perpendicular to the axis of rotation 4 of the crankshaft 3 (FIG. 5).
  • the direction 38 of the longitudinal axis 41 of the axial guide 27 includes - viewed geometrically - the axis of rotation 4 of the crankshaft 3, i.e. the longitudinal axis 41 can oscillate about the axis of rotation 4.
  • a comparison of Figures 3 and 5 clearly shows the possibility.
  • the direction 38 falls in the section plane IV - IV, i.e. the acute angle 37 is 0 ° and the axial guide 27 has a lateral distance s from the plane 34 in which the two axes of rotation 32 and 33 lie.
  • the plane 34 and the direction 38 run parallel to one another.
  • the axial guide 27 is pointed under one in relation to the common plane 34 of the two axes of rotation 32 and 33 of the respective support rollers 21 and 22 Angle 37 inclined, which is greater than 0 °.
  • This design means that when the support roller head 14 is pivoted into the closed position in the direction of the pivoting movement 35, the axial guide 27 rushes ahead of the two support rollers 21 and 22.
  • the axial guide 27 in front of the support rollers 21 and 22 enters the free space which is circumscribed by the distance 29a of the two oil collars 25 and 26 on the main bearing journal 5. In this way it is avoided that one of the support rollers 21 or 22 runs against one of the oil bundles 25 or 26 when the deep-rolling device 8 is closed.
  • the axial guide 27 can have different shapes. In Figure 3, for example, it has a cylindrical shape. In FIG. 5, the axial guide 27 has a multiple contour, which is composed of a prismatic body 39 with chamfered edges 40. With the support roller head 14, the axial guide 27 is fastened by an Allen screw 42. In the case of bearing journals 5, which have a particularly large width 29a, instead of a single axial guide 27, two axial guides (not shown) can also be arranged next to one another, one bearing against the oil collar 25 and the second against the oil collar 26.
  • the axial guide 27 can be equipped with lateral sliding bodies 43 which are screwed to the body of the axial guide 27 via countersunk screws 44.
  • the sliding bodies 43 can consist, for example, of non-ferrous metal, Teflon, hardened or coated steel, which have particularly good sliding properties. Due to the scissor design of the deep rolling device 8, the axial guide 27 also takes over the guiding of the deep rolling roller head 13 in the axial direction of the crankshaft 3.
  • the width 28 of the axial guide 27 is larger than the width 29 of the support roller head 14 and slightly smaller than the distance 29a of the oil collars 25, 26 of the main bearing journal 5.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
  • Rolling Contact Bearings (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)

Abstract

L'invention concerne un dispositif de cylindrage (8) d'une machine de cylindrage (1) pour vilebrequins (3), configuré à la manière d'une paire de ciseaux. Deux branches de ciseaux pivotantes (9 et 10) comportent respectivement une tête de rouleau de cylindrage (13) et une tête de rouleau d'appui (14), se faisant face. La tête de rouleau d'appui (14) présente deux rouleaux d'appui dont les axes de rotation sont parallèles et se situent dans un plan commun. La tête de rouleau d'appui (14) présente en outre un guidage axial qui est placé dans le sens de pivotement (35) devant les rouleaux d'appui, pour assurer une fermeture. L'axe longitudinal de ce guidage axial est perpendiculaire à l'axe de rotation du vilebrequin (3) et situé dans un plan formant un angle aigu avec le plan commun de l'axe de rotation des rouleaux d'appui. La largeur axiale de ce guidage axial est supérieure à la largeur de la tête de rouleau d'appui (14) et légèrement inférieure à la distance qui sépare les films d'huile adjacents d'un tourillon de palier principal ou de palier de bielle.
EP02791800A 2002-01-23 2002-12-10 Dispositif de cylindrage d'une machine de cylindrage pour vilebrequins Expired - Fee Related EP1469972B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE20200926U 2002-01-23
DE20200926U DE20200926U1 (de) 2002-01-23 2002-01-23 Festwalzgerät einer Festwalzmaschine für Kurbelwellen
PCT/EP2002/013969 WO2003061906A1 (fr) 2002-01-23 2002-12-10 Dispositif de cylindrage d'une machine de cylindrage pour vilebrequins

Publications (2)

Publication Number Publication Date
EP1469972A1 true EP1469972A1 (fr) 2004-10-27
EP1469972B1 EP1469972B1 (fr) 2005-06-08

Family

ID=7966844

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02791800A Expired - Fee Related EP1469972B1 (fr) 2002-01-23 2002-12-10 Dispositif de cylindrage d'une machine de cylindrage pour vilebrequins

Country Status (5)

Country Link
US (1) US20050066699A1 (fr)
EP (1) EP1469972B1 (fr)
CN (1) CN1615205A (fr)
DE (2) DE20200926U1 (fr)
WO (1) WO2003061906A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005082573A1 (fr) 2004-02-27 2005-09-09 Kecskeméti Föiskola Gamf Kar Dispositif et procede d'ebavurage et de brunissage de pieces mecaniques

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DE10361738B3 (de) * 2003-12-29 2005-09-01 Hegenscheidt-Mfd Gmbh & Co. Kg Festwalzgerät einer Festwalzmaschine für Kurbelwellen
US7188500B2 (en) * 2004-06-01 2007-03-13 Ingersoll Cm Systems Llc Apparatus and method of rolling split pin crankshafts
DE102005014998B4 (de) * 2005-04-01 2007-04-05 Hegenscheidt-Mfd Gmbh & Co. Kg Festwalzmaschine für Kurbelwellen
DE202006014371U1 (de) * 2006-09-15 2007-03-08 Hegenscheidt-Mfd Gmbh & Co. Kg Festwalzmaschine für Kurbelwellen

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WO2005082573A1 (fr) 2004-02-27 2005-09-09 Kecskeméti Föiskola Gamf Kar Dispositif et procede d'ebavurage et de brunissage de pieces mecaniques

Also Published As

Publication number Publication date
DE20200926U1 (de) 2002-04-18
CN1615205A (zh) 2005-05-11
DE50203387D1 (de) 2005-07-14
EP1469972B1 (fr) 2005-06-08
WO2003061906A1 (fr) 2003-07-31
US20050066699A1 (en) 2005-03-31

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