EP3000543A1 - Procédé de fabrication d'une pièce en tôle à grande épaisseur de paroi et telle pièce en tôle - Google Patents

Procédé de fabrication d'une pièce en tôle à grande épaisseur de paroi et telle pièce en tôle Download PDF

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Publication number
EP3000543A1
EP3000543A1 EP14186863.8A EP14186863A EP3000543A1 EP 3000543 A1 EP3000543 A1 EP 3000543A1 EP 14186863 A EP14186863 A EP 14186863A EP 3000543 A1 EP3000543 A1 EP 3000543A1
Authority
EP
European Patent Office
Prior art keywords
sheet metal
wall thickness
metal part
metal layers
produced
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.)
Withdrawn
Application number
EP14186863.8A
Other languages
German (de)
English (en)
Inventor
Kai Okulla
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.)
Wilhelm Schroeder GmbH
Original Assignee
Wilhelm Schroeder GmbH
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 Wilhelm Schroeder GmbH filed Critical Wilhelm Schroeder GmbH
Priority to EP14186863.8A priority Critical patent/EP3000543A1/fr
Publication of EP3000543A1 publication Critical patent/EP3000543A1/fr
Withdrawn legal-status Critical Current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
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/03—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of sheet metal otherwise than by folding
    • B21D39/031—Joining superposed plates by locally deforming without slitting or piercing
    • 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
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
    • 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
    • B21D53/38—Making other particular articles locksmith's goods, e.g. handles
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B17/00—Accessories in connection with locks
    • E05B17/0004—Lock assembling or manufacturing
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B85/00—Details of vehicle locks not provided for in groups E05B77/00 - E05B83/00
    • E05B85/20—Bolts or detents
    • E05B85/24—Bolts rotating about an axis
    • E05B85/243—Bolts rotating about an axis with a bifurcated bolt

Definitions

  • the invention relates to a method for producing a sheet metal part with a large wall thickness according to claim 1.
  • a known method for producing a sheet metal part with a large wall thickness may be, for example, a method for producing located in door locks rotary traps or pawls.
  • the wall or material thickness of such sheet metal parts is about 3.5 to 5.0 mm, which already represents a large wall thickness, as it is already necessary in such wall thickness ranges, to apply a "fine blanking punching" for shaping the sheet metal part.
  • fineblanking such sheet metal parts are tumbled (slidably ground) and, if necessary, band ground. This is followed by a tempering process in order to obtain a required strength of, for example, greater than 1000 Nm / mm 2 . After tempering, a slide coating with bonded coating and then a final plastic injection molding is performed before the component can be installed in the form of the rotary latch or pawl in the door lock.
  • the disadvantage of this known method is the need for at least five different process steps, which moreover usually not by a manufacturer but each of specialized manufacturers must be performed so that the actual process steps and their costs, the cost of the corresponding transport operations to the respective Special manufacturers added.
  • the method according to the invention initially has the advantage of a concentrated technical production process, with only a maximum of two different process steps, which thus eliminates process fluctuations within the previous process chain from usually five process steps to a maximum of two process steps.
  • a process stage reduction which reduces the manufacturing cost.
  • the sheet metal part to be produced is first divided or subdivided into a plurality of sheet metal layers whose wall thickness is in each case less than the wall thickness of the final component to be produced.
  • the wall thickness of the sheet metal part or component is, for example, 5.0 mm
  • the punching fracture surfaces at thin sheet thicknesses (usually less than 1.25 mm) can be produced with a smooth cut portion up to more than 50% by means of conventional punching processes, thus a surface quality of the punching edges is achieved, which is similar to a smooth cut portion by fineblanking.
  • Fig. 1A to 1C shows in plan view, sectional view along the line AA and perspective view of a plurality of (in the example three) sheet metal layers 2, 3 and 4, each having an identical wall thickness W s and whose shape F corresponds to that of the sheet metal part to be produced.
  • This type of division of a component into a plurality of sheet metal layers is also referred to as packaging.
  • Fig. 2A to 2C From the synopsis of Fig. 2A to 2C it is clear that the four sheet metal layers 2, 3, 4, and 5 to be produced in this example case to be produced sheet metal part or component 1, including in the in the Figures 1a to 1C and 2A to 2C embodiment shown is preferably provided in each case a so-called enforcement DS, which represents a Vernoppung / connection points to the sheet metal layers 2 to 4 or 2 to 5 in the desired manner for producing the mold F of the sheet metal part 1 can join.
  • the sequence of Fig. 1A - 1C and 2A-2C further illustrates an embodiment in which a laser welding process LS is used to connect the sheet metal layers 2 to 5.
  • the Fig. 1A to 1C and 2A to 2C illustrate further that the sheet metal part 1 can be provided in a functional area 6 with a metal plate 7, which is preferably coated and lubricated to ensure the desired sliding and strength requirements of the functional area 6 can.
  • a plate 7 is not mandatory.
  • the sheet metal or punching package 8 formed by the assembled sheet metal layers 2 to 4 or 2 to 5 and representing the sheet metal part 1 can furthermore be encapsulated with plastic or surrounded by two plastic shells, which are not shown in the figures, however.
  • plastic shells For connecting the plastic shells to the laminated core 8, it is possible to stick, glue, weld, braze or similarly join the plastic shells together
  • Fig. 1A to 1C the provision of a tolerance compensation survey.
  • This tolerance compensation survey is arranged on the uppermost or outer sheet metal layer 4 and is in the case of the embodiment according to the Fig. 1A to 1C formed as a bead.
  • three such beads 9A to 9C are provided here. The number and shape of these beads depends on the shape F of each sheet metal part 1.
  • compensating blades 9A and 9C are each designed as closed annular beads, while bead 9B is a slightly curved single bead. As explained above, these beads serve as a tolerance compensation for the multiple occurring material thickness tolerance of the respective individual sheets 2 to 4.
  • a tolerance compensation survey in the embodiment according to the Fig. 2A to 2C is also provided such a tolerance compensation survey, but in this embodiment consists of a plurality of punctiform elevations (warts), which are denoted by the reference numerals 10A to 10G in the Fig. 2A to 2C are identified.
  • the tolerance compensation survey in the form of said individual surveys 10A to 10G on the sheet metal layer 5 is arranged, which, like the sheet layer 4 of the first embodiment, the top or an outer sheet metal layer of the laminated core eighth represents. Also in this embodiment, the number and positioning of the individual elevations 10A to 10G to the shape F of the sheet metal part 1 is adjusted.
  • FIGS. 2A to 2C four metal layers are provided. Usually, however, packages with three or five such metal layers can be processed.
  • the height of the tolerance compensation surveys Hg or H 10 can be selected appropriately from case to case.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Punching Or Piercing (AREA)
EP14186863.8A 2014-09-29 2014-09-29 Procédé de fabrication d'une pièce en tôle à grande épaisseur de paroi et telle pièce en tôle Withdrawn EP3000543A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP14186863.8A EP3000543A1 (fr) 2014-09-29 2014-09-29 Procédé de fabrication d'une pièce en tôle à grande épaisseur de paroi et telle pièce en tôle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP14186863.8A EP3000543A1 (fr) 2014-09-29 2014-09-29 Procédé de fabrication d'une pièce en tôle à grande épaisseur de paroi et telle pièce en tôle

Publications (1)

Publication Number Publication Date
EP3000543A1 true EP3000543A1 (fr) 2016-03-30

Family

ID=51625924

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14186863.8A Withdrawn EP3000543A1 (fr) 2014-09-29 2014-09-29 Procédé de fabrication d'une pièce en tôle à grande épaisseur de paroi et telle pièce en tôle

Country Status (1)

Country Link
EP (1) EP3000543A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220126351A1 (en) * 2020-10-28 2022-04-28 Te Connectivity Germany Gmbh Assembly With A Stack Of Sheet Metal Joined From At Least Three Superimposed Layers Of Sheet Metal
WO2022058436A3 (fr) * 2020-09-17 2022-05-05 Thyssenkrupp System Engineering Gmbh Procédé de soudage par faisceau pour assembler au moins deux éléments pour obtenir un élément assemblé et élément assemblé
US12030103B2 (en) * 2020-10-28 2024-07-09 Te Connectivity Germany Gmbh Assembly with a stack of sheet metal joined from at least three superimposed layers of sheet metal

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55156623A (en) * 1979-05-23 1980-12-05 Shinko Electric Co Ltd Blanking method for overlapped double sheets for iron core of electrical machinery and apparatus
JP2001121227A (ja) * 1999-10-26 2001-05-08 Matsushita Electric Ind Co Ltd 積層固着品
JP2008259349A (ja) * 2007-04-06 2008-10-23 Toyota Motor Corp 積層コア及び回転電機
JP2009005449A (ja) * 2007-06-20 2009-01-08 Panasonic Corp モータ用の積層コアとこれを用いるモータ
JP2011101551A (ja) * 2009-11-09 2011-05-19 Mitsubishi Electric Corp 積層鉄心およびこれを用いた電機子
US20120001515A1 (en) * 2010-06-30 2012-01-05 Denso Corporation Stator for electric rotating machine
EP2506396A2 (fr) * 2011-03-30 2012-10-03 Panasonic Corporation Moteur, pompe et appareil utilisant une telle pompe

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55156623A (en) * 1979-05-23 1980-12-05 Shinko Electric Co Ltd Blanking method for overlapped double sheets for iron core of electrical machinery and apparatus
JP2001121227A (ja) * 1999-10-26 2001-05-08 Matsushita Electric Ind Co Ltd 積層固着品
JP2008259349A (ja) * 2007-04-06 2008-10-23 Toyota Motor Corp 積層コア及び回転電機
JP2009005449A (ja) * 2007-06-20 2009-01-08 Panasonic Corp モータ用の積層コアとこれを用いるモータ
JP2011101551A (ja) * 2009-11-09 2011-05-19 Mitsubishi Electric Corp 積層鉄心およびこれを用いた電機子
US20120001515A1 (en) * 2010-06-30 2012-01-05 Denso Corporation Stator for electric rotating machine
EP2506396A2 (fr) * 2011-03-30 2012-10-03 Panasonic Corporation Moteur, pompe et appareil utilisant une telle pompe

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022058436A3 (fr) * 2020-09-17 2022-05-05 Thyssenkrupp System Engineering Gmbh Procédé de soudage par faisceau pour assembler au moins deux éléments pour obtenir un élément assemblé et élément assemblé
US20220126351A1 (en) * 2020-10-28 2022-04-28 Te Connectivity Germany Gmbh Assembly With A Stack Of Sheet Metal Joined From At Least Three Superimposed Layers Of Sheet Metal
US12030103B2 (en) * 2020-10-28 2024-07-09 Te Connectivity Germany Gmbh Assembly with a stack of sheet metal joined from at least three superimposed layers of sheet metal

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