EP2240288A2 - Method for producing a break in a chassis section of a motor vehicle as necessary - Google Patents
Method for producing a break in a chassis section of a motor vehicle as necessaryInfo
- Publication number
- EP2240288A2 EP2240288A2 EP09705251A EP09705251A EP2240288A2 EP 2240288 A2 EP2240288 A2 EP 2240288A2 EP 09705251 A EP09705251 A EP 09705251A EP 09705251 A EP09705251 A EP 09705251A EP 2240288 A2 EP2240288 A2 EP 2240288A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- punching
- plate
- drive unit
- punching plate
- section
- 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
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 12
- 238000000034 method Methods 0.000 claims abstract description 50
- 238000004080 punching Methods 0.000 claims description 94
- 230000008569 process Effects 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 3
- 238000010422 painting Methods 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 238000012432 intermediate storage Methods 0.000 claims 1
- 239000003973 paint Substances 0.000 claims 1
- 238000002360 preparation method Methods 0.000 abstract description 4
- 239000002184 metal Substances 0.000 description 8
- 238000005520 cutting process Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 230000008676 import Effects 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 238000005553 drilling Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000003801 milling Methods 0.000 description 3
- 230000003313 weakening effect Effects 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 210000000080 chela (arthropods) Anatomy 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000009849 deactivation Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000000069 prophylactic effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/24—Perforating, i.e. punching holes
- B21D28/34—Perforating tools; Die holders
- B21D28/343—Draw punches
-
- 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
- B21D28/24—Perforating, i.e. punching holes
- B21D28/26—Perforating, i.e. punching holes in sheets or flat parts
-
- 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
- B21D53/88—Making other particular articles other parts for vehicles, e.g. cowlings, mudguards
Definitions
- the invention relates to a method for generating on demand a breakthrough in a body portion of a vehicle according to the preamble of claim 1
- Automotive bodywork requires breakthroughs for the passage of cables, rods or more complex components in the mass production of motor vehicles in large numbers with the possibility of customization according to the customer's wishes and / or taking into account different market requirements depends on the type and number of such breakthroughs Many factors from, for example, the respective Landerausbowung, engine, drive, special equipment etc A particularly vivid building game differently required breakthroughs in a motor vehicle, the arrangement of the steering column in the right or in the left half body, depending on whether the motor vehicle for a market with Right or left traffic is determined
- the object of the invention is to provide a method with which in variants of a motor vehicle on the already painted body in a simple manner, if necessary, breakthroughs can be generated
- the inventive method is suitable for a wide range of use cases
- motorization, drive Shift or automatic transmission, front or rear wheel drive, four-wheel drive, Hybridant ⁇ eb etc
- the stamping burr which generally results from the production of the breakthrough on the already painted body, must be aftertreated to prevent corrosion
- a punching tool is used with a punching plate and a counter-holder
- the punching plate corresponds in shape and size to the breakthrough to be generated and is positioned at the relevant point of the vehicle body
- On the opposite side of the body portion of the corresponding counter-holder is arranged so that a Abstutzung the applied punching force takes place This accessibility of the body is required from two sides
- Such a punching tool is designed, for example, pliers-like, with a fixed position assignment of punching plate and anvil at the end portions of the "Pincers" and with a device for applying the punching force between the punching plate and counter-holder, comparable to a welding tongs in the body construction.
- the disadvantage here are the comparatively high weight and the size of such a punching tool, whereby the accessibility is limited and the handling is difficult.
- a small guide hole is introduced at the location of the vehicle body or the body section at which a breakthrough is required.
- This guide hole serves to position the punching tool.
- the punching tool has a punching plate whose punching device is designed in size and contour so that the punching plate can produce the required breakthrough. From the punching plate is approximately perpendicular to a pull rod, which is intended to be passed through the guide hole.
- the punching plate is arranged on one side of the bodywork section of the vehicle to be machined. Subsequently, a tensile force is applied to the pull rod on the other side of the body portion, which presses the punch plate against the body portion, whereby the breakthrough is punched out.
- the punching plate male
- a counter-mold die
- the tool required for the method according to the invention can be designed to be very simple and cost-effective, in contrast to the expensive tools with a punch insert used in the stamping shop during bodyworking. Due to its compact design, the tool can be used almost anywhere Vehicle body and are used in principle at any time during the manufacture of a motor vehicle body
- the pull rod is fixedly connected to the punching plate and approximately perpendicular to it.
- the pull rod is separated from the punching plate and can be screwed, for example, into an internal thread on the punching plate Also a reversible latching connection or the like is conceivable
- the pull rod is inserted from the side into the Fuhrungsloch at which the punch plate is to come to rest on the body portion of the two-part punch the tie rod can alternatively be introduced from that side in the Fuhrungsloch at the following the Traction is applied
- the punching plate is preferably formed as a substantially flat plate, wherein the peripheral edge of the plate in cooperation with a arranged on the other side of the body portion die forms the "cutting edge" for the punching operation
- the punching plate may have a different thickness along its peripheral edge, so that on the side facing the body portion of the punching plate, for example, a wave-shaped "cutting edge" arises, which attaches to the beginning of the punching process only on a partial extent of the opening to be created and only in the further course of
- the cutting force reduction achieved hereby achieves an improved punching process, comparable to a scarfing operation. This is particularly advantageous in the case of thicker sheet metal materials, in order to ensure a uniform and not too high cutting force over the course of the punching process
- the side surface of the punching plate or the punching ring can be parallel to the pulling direction or be beveled at a small angle thereto.
- the tensile force can be applied for example via a hydraulic, a pneumatic or an electric drive unit to the pull rod of the punching tool.
- a hydraulic, a pneumatic or an electric drive unit to the pull rod of the punching tool.
- a flexible and simple drive unit can be placed, which can be positioned at a small size in comparatively difficult to reach places.
- hydraulic drive units are used due to the high forces that can be achieved.
- electric motors can be used, the z. B. exercise the traction over a spindle drive.
- the manual application of a tensile force for example via a threaded spindle driven by a hand tool.
- the punching plate is attached to one side of the body section, where the breakthrough is to be generated. Subsequently, the drive unit is placed on the other side of the body section. This requires that both sides of the body section are accessible. Restrictions on accessibility on both sides may result from already installed adjacent components or an inaccessible cavity.
- the end section of the drive unit facing the body section forms an abutment for the punching table.
- this end portion of the drive unit acts as a die for the patrizenartigen punching plate (or vice versa).
- the drive unit is already plugged as far as possible in the direction of the body section on the pull rod when applied to the pull rod.
- the pull rod When inserting a one-piece Werners or already assembled two-part Werners in the guide hole of the "Punching" of the body section is the pull rod on the "drive side" of the body section preferred here, the pull rod is already inserted during the pushing through the Fuhrungsloch directly into the standby drive unit
- the connection between tie rod and drive unit is preferably carried out by form gleichiges locking
- the tie rod for example, a circumferential groove or the like
- the connection can also be made by a bayonet lock, by means of magnets, by a screw etc
- electromagnets these can be used, for example, during imports of Pull rod are activated in the drive unit and produce in this way a positive or positive connection between the tie rod and drive unit
- the extension of the pull rod from the drive unit after punching the opening is done either via the drive unit itself or a separate device, such as springs that bias during the punching process In an electromagnetic coupling are after punching and possibly the extension of the Werners the electromagnets disabled again to allow the tool separation and a removal of the cut sheet metal part
- an impression mechanism which operates, for example, via a piston or a lever, facilitate the detachment of the cut sheet metal part from the punching plate and / or the drive unit
- prefixing of the punching plate to the body section is advantageous (not necessary with a pliers-type punching tool), especially if the pull rod is not coupled to the drive unit at once
- a Vorfix ists worn provided which is activated when applying the punching plate, for example via electromagnets or via a vacuum generating device This makes it possible to first set several punching plates to subsequently with a single drive unit in order to punch the breakthroughs. After punching, the prefixing device is deactivated again in order to achieve easy separation of the punching tool and removal of the stamped sheet metal part.
- the prefixing device is arranged, for example, on the side of the punching plate facing the bodywork section (cutting side of the punching plate) and configured such that it pushes through to the rear side of the punching plate during the punching process.
- the prefixing device can also be arranged laterally of the punching plate, that is to say outside the punching region.
- the magnets are, for example, cylindrical and guided longitudinally displaceable in the punching plate against spring force parallel to the pulling direction, whereby they push with the application to the body section and the application of a tensile force on the draw punch through the punching plate.
- the displaceability of the prefixing device is also advantageous, since this adaptation to a curved body portion is achieved and / or the deformation of the punched sheet can be followed.
- the guide hole may deviate from the circular shape.
- oval, slot-like, quadrangular or polygonal geometries come into consideration.
- the Fuhrungslocher are already introduced in the shell at the unpainted body section
- the small Fuhrungslocher for example by punching, drilling, milling, etc ..
- the non-required Fuhrungslocher be closed, which is well possible due to the small size of Fuhrungslocher
- the Fuhrungslocher represent no appreciable weakening of the rigidity of the body
- the seal can be easily realized by appropriately designed small plug Also results in the seal by plug one adequate acoustic insulation
- Fuhrungslocher be introduced only in case of need at the points on the already painted body where an opening is needed
- the introduction of Fuhrungsloches or Fuhrungslocher is preferably carried out immediately before punching the breakthrough
- suitable special method all machining methods such as drilling
- the material obtained during machining material is removed by suction
- all variants of the vehicle body can be produced in a uniform manner with "held" Fuhrungslochem Alternatively punching done without the aid of a Fuhrungslochs or on a previously set on the painted body Fuhrungsloch
- the inventions generating the breakthroughs can be done very late in the assembly process of the vehicle body, on the assembly line of the final assembly Thus, for example, only immediately before the installation of the steering column required for this breakthrough in the front wall can be made
- Figure 1 is a plan view of a body portion of a
- Figure 1 shows a body portion 1 of a motor vehicle, in this case the lower part of an end wall of a passenger car on the body portion 1 is a plurality of breakthroughs 2 recognize for carrying different lines, linkages, levers, shafts, devices, etc.
- the two Lenksaulen malonate 3 are located on both sides of a recess 4 for a transmission tunnel
- prepared body sections 1 the two Lenksaulen benzoe 3 already made in the shell, with each not required Lenksaulurchbruch 3 is closed by a lid
- the first part 12 of the tool 10 is designed as a punch and is composed of a punching plate 14 and a tie rod 16
- the punching plate 14 consists of a substantially flat plate having a shape corresponding to the shape of the opening 3 to be produced
- the punching plate 14 has its The cross section of the tie rod 16 is adapted to the cross section of the Fuhrungsloches 5, in the present case approximately rechteckform ig, so this is an anti-rotation and an angular positioning of the pull rod 16 in the slot-like Fuhrungsloch 5 results
- Vorfix ists worn 18 having a plurality of cylindrical electromagnets
- the electromagnets are biased by springs, not shown in the direction of the body portion 1 and protrude from the punching plate 14 in the direction of the body section 1
- the Vorfix ists driven 18 is with the attachment of the punch plate 14 at activates the body section 1 and fixes the punch plate 14 by magnetic force on the body section. 1
- a drive unit designated 30 in its entirety is placed on the drawbar 16.
- the drive unit 30 can pass through the drawbar 16 during the passage the guide hole 5 are attached to the front side V of the body section 1 in such a way that an insertion into the drive unit 30 takes place when the pull rod 16 is pushed through.
- an electromagnetically actuated fixing device for the pull rod 16 is provided on the drive unit 30 provided, which is activated with the imports of the drawbar 16, so that the drawbar 16 is positively connected to the drive unit 30
- the drive unit 30 is designed as a hydraulic or pneumatic cylinder and has a housing 32 with an internal piston 34.
- the housing 32 has on its side facing the body portion 1 open side a free end portion 36 which is configured circumferentially this end portion 36 acts as a "die “and forms the counterpart to the" patnze "of the punching plate 14
- the piston 34 is moved in accordance with the direction of the arrow 40, whereby the pull rod 16 is moved along the direction of the arrow 40
- the punch plate 14 on the rear side R of the body section 1 to the plant and on the other hand lies down
- the stamping device formed from stamping plate 14 and end section 36 cuts through the body section 1 in the area of the preparation point predetermined by the guide hole 5, so that the required steering hole 3 is formed Electromagnets of Vorfix ists issued 18 displaced against the direction of the arrow 40
- FIG. 5 shows the final state of the body section 1 with the generated steering jaw opening 3
- the cut sheet metal part 6 (corresponding to the sheet section between the two lines x-x in FIGS. 2 and 3) is now inside the tool 10 and must subsequently be removed therefrom This can be done after the extension of the piston 34 against the direction of the arrow 40, whereby the punch plate 14 again emerges from the housing 32.
- the prefixing device 18 (if present) takes in this case the sheet metal part 6
- the sheet metal part 6 dissolves after the deactivation of the electromagnets the Vorfix ists worn 18 and can be removed after the separation of the drawbar 16 of the drive unit 30
- the invention can be summarized as follows Describe in a preferred embodiment of the inventive method on-demand Generating breakthroughs in a body section 1 of a motor vehicle, at least two guide holes 5 are provided, which correspond to occasionally required openings 3 in the body section 1. Depending on which opening 3 is actually required in the relevant vehicle body, one or the other guide hole 5 is used for the insertion of a tool 10.
- the tool 10 consists of a punch 12 with a punch plate 14 and a pull rod 16.
- the pull rod 16 is passed from the back R of the body portion 1 through the relevant guide hole 5 and inserted into an attached to the front of the body section 1 drive unit 30.
- the drive unit 30 is designed, for example, as a hydraulic piston-cylinder unit and has on its side facing the body portion 1 a matrizenartig designed free end portion 36 which forms a punching device together with the punch plate 14.
- the drive unit 30 moves the punching plate 14 and the end section 36 together in such a way that the sheet metal section 6 lying therebetween is cut out and thus the required opening 3 is created.
- 5 preparation points can be provided with comparatively very small guide holes, in which the tool 10 is used on an already painted body as required and subsequently the required openings 3 are generated depending on the vehicle configuration.
- the unneeded pilot holes 5 can be closed with small plugs.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Punching Or Piercing (AREA)
- Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008007284A DE102008007284A1 (en) | 2008-02-02 | 2008-02-02 | A method for generating a break-through in a body portion of a vehicle as needed |
PCT/EP2009/000630 WO2009095262A2 (en) | 2008-02-02 | 2009-01-30 | Method for producing a break in a chassis section of a motor vehicle as necessary |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2240288A2 true EP2240288A2 (en) | 2010-10-20 |
EP2240288B1 EP2240288B1 (en) | 2011-06-15 |
Family
ID=40822143
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09705251A Active EP2240288B1 (en) | 2008-02-02 | 2009-01-30 | Method for producing a break in a chassis section of a motor vehicle as necessary |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP2240288B1 (en) |
AT (1) | ATE512735T1 (en) |
DE (1) | DE102008007284A1 (en) |
WO (1) | WO2009095262A2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009050226B4 (en) | 2009-10-22 | 2021-07-01 | Bayerische Motoren Werke Aktiengesellschaft | Method for creating an opening in a component of a vehicle as required |
CN113145727B (en) * | 2021-04-20 | 2023-07-21 | 合肥亚辰机械制造有限公司 | Punching dotter |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR851760A (en) * | 1938-09-22 | 1940-01-15 | Cookie cutter | |
CH470927A (en) * | 1968-10-03 | 1969-04-15 | Schwendimann Candide | Transportable device for cutting holes in sheets |
DE19630898C1 (en) * | 1996-08-01 | 1997-08-07 | Daimler Benz Ag | Method for optional formation of hole in outer skin of vehicle bodywork |
DE29918486U1 (en) * | 1999-04-27 | 1999-12-16 | Daimler Chrysler Ag | Device for positioning and producing screw connection points on pressed metal parts of a vehicle body |
US7117706B2 (en) * | 2002-12-26 | 2006-10-10 | Utica Enterprises, Inc. | Programmable apparatus and method for body panel attachment |
DE10352968B3 (en) * | 2003-11-13 | 2005-04-21 | Audi Ag | Stamping process used during manufacture of road vehicle bodywork for producing shallow or deep drawn bulges with thinned and weakened edges uses stamp of larger diameter than matrix |
DE102005038470B4 (en) * | 2005-08-13 | 2022-08-25 | Eckold Gmbh & Co. Kg | Forming tool and method for positioning the forming tool |
-
2008
- 2008-02-02 DE DE102008007284A patent/DE102008007284A1/en not_active Withdrawn
-
2009
- 2009-01-30 WO PCT/EP2009/000630 patent/WO2009095262A2/en active Application Filing
- 2009-01-30 AT AT09705251T patent/ATE512735T1/en active
- 2009-01-30 EP EP09705251A patent/EP2240288B1/en active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2009095262A2 * |
Also Published As
Publication number | Publication date |
---|---|
DE102008007284A1 (en) | 2009-08-06 |
WO2009095262A2 (en) | 2009-08-06 |
EP2240288B1 (en) | 2011-06-15 |
WO2009095262A3 (en) | 2010-01-21 |
ATE512735T1 (en) | 2011-07-15 |
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