[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

US20200230688A1 - Method and device for producing shaped sheet-metal components by means of preformed components - Google Patents

Method and device for producing shaped sheet-metal components by means of preformed components Download PDF

Info

Publication number
US20200230688A1
US20200230688A1 US16/841,041 US202016841041A US2020230688A1 US 20200230688 A1 US20200230688 A1 US 20200230688A1 US 202016841041 A US202016841041 A US 202016841041A US 2020230688 A1 US2020230688 A1 US 2020230688A1
Authority
US
United States
Prior art keywords
component
edge
preformed
shaped
finally shaped
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.)
Abandoned
Application number
US16/841,041
Other languages
English (en)
Inventor
Thomas Flehmig
Daniel Nierhoff
Martin Kibben
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.)
ThyssenKrupp Steel Europe AG
ThyssenKrupp AG
Original Assignee
ThyssenKrupp Steel Europe AG
ThyssenKrupp AG
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 ThyssenKrupp Steel Europe AG, ThyssenKrupp AG filed Critical ThyssenKrupp Steel Europe AG
Assigned to THYSSENKRUPP AG, THYSSENKRUPP STEEL EUROPE AG reassignment THYSSENKRUPP AG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: FLEHMIG, THOMAS, Nierhoff, Daniel, KIBBEN, MARTIN
Publication of US20200230688A1 publication Critical patent/US20200230688A1/en
Abandoned legal-status Critical Current

Links

Images

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
    • B21D53/88—Making other particular articles other parts for vehicles, e.g. cowlings, mudguards
    • 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
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/20—Deep-drawing
    • B21D22/26—Deep-drawing for making peculiarly, e.g. irregularly, shaped articles
    • 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
    • B21D28/14—Dies
    • 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
    • B21D37/00—Tools as parts of machines covered by this subclass
    • B21D37/10—Die sets; Pillar guides
    • 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
    • B21D24/00—Special deep-drawing arrangements in, or in connection with, presses
    • B21D24/10—Devices controlling or operating blank holders independently, or in conjunction with dies
    • B21D24/14—Devices controlling or operating blank holders independently, or in conjunction with dies pneumatically or hydraulically

Definitions

  • the present invention relates to a method for producing a component, in particular a structural component of a vehicle, wherein the method comprises the method steps of preforming a workpiece into a preformed component and producing a finally shaped component from the preformed component.
  • the invention furthermore relates to a device, in particular for carrying out the method according to the invention, with a forming tool.
  • Components produced by sheet metal forming, for example deep-drawn components generally require a final edge trimming, in which excess regions of the deep-drawn component for example, are cut off.
  • this can be performed for example by using one or more trimming tools, which partially or fully trim the flange from above or slanting in the desired manner.
  • the trimming is already much more complicated, since it must be cut from the side, guided for example by a wedge gate valve.
  • the trimming operations are disadvantageous however, since the trimming generally requires one or even several separate, often maintenance-intensive operations, which often also require their own tool technology and their own logistics system.
  • the cut-off portions increase the amount of scrap, resulting in additional costs.
  • Proposed methods are characterised in that preformed components largely close to the final contour are produced by various methods of forming, which by means of suitable geometric variations such as extensions of the borders and flanges, undulating floors or modified drawing radii, mainly have a flat material allowance.
  • this material addition is squeezed out, which leads to thickening and realignment of the residual stresses in the direction of the sheet plane.
  • Modifications of these methods operate with combined variants, in which a material shortage may also exist in some sections. Local trimming operations before or after the calibration are also possible.
  • the aim is also to reduce the trimming.
  • a finished component completely free of edge trimming can be fabricated from a preformed component close to the final contour and can thus be manufactured with minimal use of material from shaped blanks of minimal dimensions, so-called minimal shaped blanks.
  • a disadvantage of this production process is that the preformed half shells usually have to be subjected to a further trimming, so that they have the desired dimensions, in particular with regard to the border height.
  • it is known for example from DE 10 2011 050 001 A1 to integrate the final trimming into the deep-drawing process.
  • the flange region of the half shell is trimmed in the region of the die contact surface.
  • the preformed half shell produced in this way is then calibrated in the same tool by means of a compression shoulder arranged on the drawing die.
  • this method also has the disadvantage that excess blank material occurs as waste, and the integration of the cutting edge into the deep-drawing die leads to a very high tool wear.
  • it cannot be adequately ensured that the blank does not change its position during the deep-drawing, whereby the dimensions of the half shell are inaccurate, which in turn requires trimming in the flange or border region.
  • German published application DE 10 2008 037 612 A1 also describes a method for producing highly dimensionally accurate half shells with a bottom region, a border region and a flange region, wherein a preformed half shell is first of all formed from a blank, which is then shaped and trimmed into the finally shaped half shell.
  • German published patent application DE 10 2009 059 197 A1 describes a method for producing a half shell part with a drawing punch and a drawing die.
  • a process-reliable and cost-effective production is achieved by inserting the drawing punch into the die in a single work step, preforming a blank into a sheet metal blank with at least one base section, at least one border section and optionally a flange section, wherein during the preforming excess material is introduced with the punch either into the bottom section and the border section or the optional flange section of the sheet metal blank, and the sheet metal blank is formed and calibrated into a half shell part having the final shape.
  • a preform is produced in a first method step, wherein the preform is as close as possible to the final shape or finished shape of the component and an additional edge trimming may be necessary.
  • edge trimmings require robust and less sensitive preforming methods that deliver components that as far as possible are independent of friction and batch and thickness fluctuations, and whose processing differs only slightly from one another. As described, this is carried out by using distanced outer hold-down devices, clamping-type inner hold-down devices, as well as larger drawing gaps and drawing radii.
  • the present invention is based on the object of providing a method and a device for the cost-effective production of components of complex shape.
  • this object is achieved in a generic method in which the preformed component, in particular a component far from the final contour, is turned into a singly or multiply offset (in particular in the longitudinal direction) finally shaped component or into a singly or multiply offset finally shaped, highly dimensionally accurate component, by a forming operation, in particular in at least one process step.
  • a preforming step in a first tool or optionally several tool stages simple components that in particular are far from the final contour but that can be easily produced can first of all be preformed by means of a slightly sensitive fabrication, in which the edge contour deviates rather slightly from the target contour.
  • the finally shaped component can then be produced in at least a second tool by forming from the preformed component.
  • the method according to the invention has the advantage that, for the production of components, in particular components of complex shape, substantially flat blanks or minimally shaped blanks can be used and yet edge trimming can be largely dispensed with, so that a significant simplification of the manufacturing process compared to the known methods is achieved.
  • the workpiece is for example in this connection a substantially flat blank or minimal shape blank.
  • the workpiece is preferably produced from one or more steel materials. Alternatively, aluminium materials or other metals can also be used.
  • a preformed component is understood to mean in particular a preform of a component that cannot be formed into the finished component simply by a calibration.
  • the preformed component or component far from the final contour is a substantially straight component.
  • the preformed component or component far from the final contour may already have structured surface elements.
  • the finally shaped component is for example an offset component
  • the preformed component or component far from the final contour is for example a less offset or non-offset component.
  • the preformed component or component far from the final contour in at least one direction, for example in the longitudinal direction has in contrast to the finally shaped component a substantially constant cross-sectional geometry.
  • the preformed component or component far from the final contour can, on account of its remote final contour in contrast to the finally shaped component, be manufactured in a simple and material-saving manner that is more process-reliable by embossing the floor to be created and raising the borders to be created (embossing and raising).
  • effective continuous methods such as roll forming can also be used.
  • a finally shaped, highly dimensionally accurate component is understood to mean in particular a component that has been subjected to calibration.
  • the production of the preformed component can include for example a deep-drawing-like shaping step, in which for example a deep-drawing tool with an inner hold-down device, a distant outer hold-down device and/or large drawing radii and drawing gaps as well as optional aids for loading and positioning, can be used.
  • a shaping can also be carried out, including for example embossing the base and raising the borders or optionally placement of the flanges to be created. Any combinations of folding and/or bending and/or (punching) embossing or roll forming with subsequent portioning into sections are also conceivable.
  • the shaping and a calibration for producing a finally shaped, highly dimensionally accurate component can be carried out in a joint method step.
  • This embodiment has the advantage that a finally shaped, highly dimensionally accurate component can be obtained from a preformed component in only one process step, and in particular using only one tool.
  • a finally shaped component is first produced from the preformed component in a further shaping step by shaping, following which a finally shaped, highly dimensionally accurate component is then produced from the finally shaped component by calibration.
  • This two-step variant has the advantage that for example already existing calibration tools can be used to calibrate the component and the method can thus be incorporated economically into existing process chains.
  • the preformed component or in particular the finally shaped component contains the material additions and/or material deficiencies necessary for the production of dimensionally accurate finally shaped components in particular.
  • Calibration can be understood to mean, in particular, the final shaping of the finally shaped component, which can also be achieved for example by one or more pressing or upsetting procedures.
  • the finally shaped or finally shaped, highly dimensionally accurate component can undergo further processing steps modifying the component, such as the introduction of connection holes, side embossing, flange placements or a (slight) trimming process.
  • the aim is to design the shape of the tool used for the calibration in such a way that no further forming steps are otherwise necessary.
  • the preformed, finally shaped component and/or the finally shaped, highly dimensionally accurate component is a substantially elongated component. It was found that the method according to the invention can be advantageously used in particular in the production of elongated components of complex shape.
  • Elongated components are understood to mean in particular components that have a significantly longer side compared to the other two sides and in particular have a pronounced border. This longer side naturally forms a preferred direction of the component, hereinafter referred to as the longitudinal direction, while the other two sides each represent a transverse direction.
  • components of particularly complex shape can be produced in a particularly cost-effective manner from components that are more elongated in the longitudinal direction of these components at least by a factor of >1, in particular at least by a factor of 3, preferably at least by a factor of 5, compared to the transverse direction.
  • the preformed, the finally shaped and/or the finally shaped, highly dimensionally accurate component is a half shell-shaped component, which in particular is a U-shaped or hat-shaped component in cross section. It was recognised that the method according to the invention is suitable for a particularly cost-saving production of half shell-shaped components, and in particular its use in the case of components of U-shaped or hat-shaped cross-section has proved to be particularly advantageous.
  • the preformed component is formed in its longitudinal direction into a finally shaped or finally shaped, highly dimensionally accurate component having a Z-shape (offset) or U-shape (double offset).
  • the method according to the invention is particularly suitable for the production of complicatedly shaped components, such as for example offset components or even markedly offset components such as markedly offset U-shaped components, particularly if they undergo a calibration.
  • the method according to the invention has proven to be particularly cost-saving, specifically in the production of singly offset or singly and multi-dimensionally offset components. With the method according to the invention complicatedly shaped components can thus be produced with minimal shaped blanks, so that edge trimming can largely be dispensed with if necessary.
  • the components have a Z or U shape in the longitudinal direction, they can be manufactured in a particularly material-saving way.
  • the Z shape is in this case generated for example by a displacement of in each case oppositely facing shape sections about a middle region, so that the regions of the preformed component to be changed are disposed at defined angles to the direction of displacement, for example if the longitudinal direction or the longitudinal axis runs in the X direction, a displacement in the Z and/or Y direction is possible (coordinate system).
  • the displacement along the longitudinal axis of the component can also occur repeatedly and in opposite directions.
  • U-shaped or multiply offset variants of the finally shaped component or the finally shaped, highly dimensionally accurate component are then obtained.
  • different regions of the preformed component are shaped and/or calibrated time-delayed into the finally shaped or finally shaped, highly dimensionally accurate component.
  • Different regions of the preformed component are therefore at least partially not shaped or calibrated at the same time into the final formed shape or final formed, highly dimensionally accurate shape, wherein a final formed shape is understood to mean the shape of the final formed component and a final formed, highly dimensionally accurate shape is understood to mean the shape of the finally shaped, highly dimensionally accurate component.
  • the different regions can partially overlap or can be completely different regions. Different regions of the preformed component are thus at least partially individually or separately shaped or calibrated.
  • the shaping of the preformed component or the calibration consists in particular of partial shaping or calibration steps. There is preferably a partial time overlap between the shaping and/or calibration of different regions, so that the shaping and/or calibration takes place partly at the same time.
  • a shaping and/or calibration of a region takes place only when the shaping and/or calibration of the previous region is complete.
  • at least a first region and a second region are envisaged, which are shaped and/or calibrated at different times.
  • more than two, for example three, four, five or more different regions can also be envisaged.
  • This procedure provides a further cost saving in the production of complicated components.
  • the cost-saving use of, for example, a single tool and/or the use of a low-maintenance tool in the further shaping step and/or in the final shaping can thus be achieved.
  • the range of applications can be expanded to include components that in particular have not been able to be satisfactorily manufactured using the boundary conditions of the method known from the prior art, for example because of their complex shape.
  • the finally shaped or finally shaped, highly dimensionally accurate component has at least three regions, in particular an offset middle region with two adjacent edge regions, wherein the edge regions are and/or remain preferably aligned substantially parallel when the preformed component is formed into the finally shaped or finally shaped, highly dimensionally accurate component and the longitudinal axis of the middle region is angled with respect to the longitudinal axis of the edge regions.
  • Other orientations of the edge regions are also possible in the X, Y and/or Z direction (coordinate system).
  • the term edge region refers in this context to the fact that such a region is arranged next to a middle region and is not dependent on the absolute position of this region in the entire finally shaped component.
  • the method according to the invention is particularly advantageous for the production of components of such complicatedly shaped components.
  • the end shaped component also has an angle of 10° to 120°, in particular an angle of 20° to 100°, preferably an angle of 25° to 90° between the longitudinal axis of at least one edge region and the longitudinal axis of the at least one middle region, the complexity and control of the tool for the forming and/or calibration can be kept as low as possible.
  • the finally shaped or finally shaped component also has an angle of 30° to 60° between the longitudinal axis of at least one edge region and the longitudinal axis of the at least one middle region, so that the complexity of the tool can be further reduced.
  • a multi-part forming tool is used, wherein the middle region of the preformed component is formed into a final shape after at least one edge region of the preformed component has been formed into a final shape, or wherein the middle region of the preformed component is shaped and calibrated into the finally shaped, highly dimensionally accurate shape after at least one edge region of the preformed component has been formed and calibrated into a finally shaped, highly dimensionally accurate shape.
  • the preformed component is placed in dies which are arranged inclined to the direction of displacement of the punches or dies used for the forming.
  • the direction of displacement is understood in particular to mean the direction of movement of the punches and/or dies during the shaping process, thus for example the vertical direction.
  • a die arranged inclined with respect to the vertical direction is understood in particular to mean that the longitudinal axis of the inserted component is inclined relative to the direction of displacement. It was recognised that the degree of ironing can advantageously be adjusted via the angle between the direction of displacement and position of the component. The smaller the angle, the greater the ironing that can be achieved. The desired degree of ironing can thus be adjusted in a cost-saving manner by using a single tool.
  • the preformed component is clamped between at least one edge die and the associated at least one edge punch, wherein the clamping force is so high that the preformed component essentially cannot slip (i.e. not slip or only slightly).
  • the object is achieved in a generic device in that the forming tool is designed as a multi-part forming tool, wherein each part of the multi-part forming tool comprises at least one punch and one die, wherein the forming tool is arranged to produce a singly or multiply offset finally shaped component by forming from the preformed component, or a singly or multiply offset finally shaped, highly dimensionally accurate component by forming and calibration from the preformed component.
  • the device is preferably used in a transfer press or alternatively in linked individual presses.
  • the use of such a device enables a cost-effective production of complicated components.
  • the cost-saving use of for example a single forming tool and/or the use of a low-maintenance forming tool in the further forming step and/or in the final forming can thus be achieved.
  • the range of applications can be extended to components which hitherto in particular cannot be suitably produced or only with great difficulty under the boundary conditions of the method known from the prior art, for example because of their complicated shape.
  • the device according to the invention can also comprise a tool for producing the preformed component, in particular for example an embossing and raising tool or a deep-drawing tool with an inner hold-down device, a distanced outer hold-down device, large drawing radii and drawing gaps and/or aids for loading and positioning.
  • a tool for producing the preformed component in particular for example an embossing and raising tool or a deep-drawing tool with an inner hold-down device, a distanced outer hold-down device, large drawing radii and drawing gaps and/or aids for loading and positioning.
  • a tool for producing the preformed component in particular for example an embossing and raising tool or a deep-drawing tool with an inner hold-down device, a distanced outer hold-down device, large drawing radii and drawing gaps and/or aids for loading and positioning.
  • the device according to the invention may comprise a forming tool with a calibration function, in particular having a solid or divided forming die with a calibration function and/or also single-part or multi-part forming dies with a calibration function and/or auxiliary elements for loading, support, positioning and/or ejecting.
  • the device according to the invention may have a calibration tool, in particular comprising a solid or divided calibration die and/or also one-part or multi-part calibration punches and/or auxiliary elements for loading, support, positioning and/or ejecting.
  • a calibration tool in particular comprising a solid or divided calibration die and/or also one-part or multi-part calibration punches and/or auxiliary elements for loading, support, positioning and/or ejecting.
  • the forming tool has at least one centre tool part with two adjoining edge tool parts, wherein the at least one centre tool part comprises at least one central punch and at least one centre die, and at least one of the edge tool parts comprises an edge punch and an edge die.
  • the at least one edge die of at least one of the edge tool parts is a height-adjustable edge die. Since at least one edge die is height-adjustable, for example is mounted on spindle sleeves, the sequence of the forming and/or calibration of the different regions of the preformed component can be advantageously adjusted. For example, a shaping and/or calibration, but also a clamping of an edge region of the preformed component can take place already before or during the shaping and/or calibration of another component region (in particular a middle region), which further simplifies the production of this component, especially with highly dimensional accuracy, without edge trimming.
  • the edge dies especially those that are not height-adjustable i.e.
  • edge dies already in the end position comprise an inner holding-down device or shape-maintaining punch, which essentially supports the major part of the shape of the edge region in such a way that the shaping movement does not cause any significant dimensional change, so that the preformed component can be positioned particularly advantageously in addition to the positive engagement with the edge tool parts, and a certain dimensional accuracy can thus be generated.
  • the term height-adjustable in the context of the edge die is understood to mean that the thus designated edge die is height-adjustable compared to other die parts of the forming tool, whereas these other die parts are rigid relative to one another.
  • the at least one edge punch of at least one of the edge tool parts is movably mounted relative to the other punch (parts). Since at least one edge punch is movably mounted in a force-acting manner, preferably by means of at least one hydraulic actuating means, the sequence of the shaping and/or calibration of the different regions of the preformed component can be further advantageously adapted. For example, a shaping and/or calibration, but also clamping of an edge region of the preformed component can take place before or during the shaping and/or calibration of another component region (in particular a middle region), which further simplifies the production of these components in particular with highly dimensional accuracy without edge trimming.
  • the simultaneous shaping and/or calibration of the edge regions adjacent to a middle region of the preformed component can thus for example be achieved particularly advantageously.
  • the term movable is understood to mean that the thus-designated edge punches can be moved separately with respect to other punch parts of the forming tool according to the invention, in particular can be adjusted as regards height, whereas the other punch parts mentioned are rigid with respect to one another.
  • the device and/or the forming tool are in an inclined position with respect to the direction of displacement. It was recognised that the degree of ironing can advantageously be adjusted by these measures.
  • the forming tool has a forming edge die with calibration function and/or a forming edge punch with calibration function, in particular a height-adjustable forming edge die with calibration function, optionally with an inner hold-down device.
  • the shaping and calibration of the preformed component into the finally shaped component can thus advantageously be carried out with only one tool.
  • a forming (edge) die with calibration function and a forming (edge) punch with calibration function are understood to mean (edge) dies or punches that essentially already contain the final shape of the highly dimensionally accurate, finally shaped component.
  • the forming tool has means for blocking the flow of material over the edge of the component, for example has lateral or end shut-off walls.
  • a further improvement of the dimensional accuracy of the finally shaped components is thereby achieved, in particular in an optional flange region, in that the material flow of the component is shut off at least temporarily during the pressing procedure, for example at the optional flange edges of a half shell-shaped component. In this way it is ensured that no blank material is forced out from the pressing region and thus all the excess blank material is completely formed into the finally shaped component.
  • the blocking of the material flow of the preformed and/or finally shaped and/or finally shaped, highly dimensionally accurate component to the outside can be achieved in a particularly preferred manner by a barrier wall provided on the punch used for the pressing procedure.
  • a barrier wall provided on the punch used for the pressing procedure.
  • this has the advantage that no additional movable component has to be provided in order to shut off the material flow to the outside.
  • the shut-off wall blocking the flow of material moves precisely during the pressing procedure causing the material flow, into the position envisaged for the shut-off.
  • movable side walls can provide a blocking effect.
  • the device optionally has means for clamping individual base regions of the preformed component, which thereby enables a precise positioning of the preformed component, which is particularly advantageous for the dimensional accuracy.
  • FIG. 1 a - d show schematic representations of the shaping of the preformed component in the finally shaped component in the context of a first embodiment of a method according to the invention with an embodiment of a device according to the invention, wherein only the effective surfaces of the punches and dies are shown, and
  • FIG. 2 a - f show schematic representations of the shaping of the preformed component into the finally shaped, highly dimensionally accurate component in a single step in the context of a second exemplary embodiment of the method according to the invention with an exemplary embodiment of a device according to the invention, wherein only the effective surfaces of the punches and dies are shown.
  • a singly shaped preformed component 1 in the form of an offset, elongated and, in the longitudinal direction, predominantly straight hat profile with a predetermined edge contour is inexpensively produced by suitable means.
  • the term simple refers to the extension of the longitudinal axis of the preformed component, which may otherwise have fully structured further surface elements or curvatures.
  • Suitable measures for producing this singly shaped, preformed component 1 are for example embossing and raising/turning up or robust deep drawing with a distant outer hold-down device.
  • the device for producing the singly shaped, preformed, in particular component 1 far from the final contour is thus, for example, a tool for embossing and raising or a deep-drawing tool with an inner hold-down device, distant outer hold-down device, large drawing radii and drawing gaps, and also aids for loading and positioning.
  • Singly shaped, preformed components 1 can alternatively also be produced by roll shaping.
  • the further shaping takes place in the next step in a forming tool, shown schematically in FIG. 1 , according to the device in accordance with the invention.
  • the forming tool for the further shaping of the singly shaped preformed component 1 is constructed here in three parts and comprises a centre tool part and two edge tool parts, wherein the centre tool part has a central punch 2 b and a centre die 3 b and the first edge tool part has an edge punch 2 a and a height-adjustable edge die 3 a, wherein the edge die 3 a is movably mounted in a height-adjustable manner via spindle sleeves 6 .
  • the non-height-adjustable die parts can also have an optional inner hold-down device (not shown), which when extended facilitates the positioning and loading.
  • the second edge tool has a movable edge punch 2 c and a rigid edge die 3 c.
  • the movable edge punch 2 c associated with the rigid edge die 3 c is movably mounted by for example hydraulic or other force-acting adjustment means, the direction of movement 5 of these force-acting adjustment means being shown relative to the other punches, namely the central punch 2 b and the edge punch 2 a of the first edge tool part.
  • the forming tool is inclined with respect to the downward movement of a press represented by the arrow 4 . The course of the further shaping is described below.
  • the edge punches 2 a, 2 c and the central punch 2 b are in the raised position at the start of the further shaping step.
  • the height-variable edge die 3 a is raised to the level of the rigid edge die 3 c by the spindle sleeves of the press, as indicated by the arrow 6 .
  • the other two dies 3 b, 3 c are already located in their end position, are rigid and are not moved.
  • the inner hold-down device (not shown) of the one fixed edge die 3 c can be extended.
  • the singly preformed component 1 is inserted into the dies 3 a, 3 b, 3 c inclined to the direction of displacement 4 .
  • the preformed component can be positioned by the positive connection to the two edge dies and/or by the raised inner hold-down device, not shown, of the rigid edge die.
  • the edge punches 2 a, 2 c and the central punch 2 b are afterwards lowered by the movement of the press in the direction of displacement 4 .
  • the force-acting movable edge punch 2 c and also the raised, height-adjustable edge die 3 a clamp the singly shaped preformed component 1 between their respective counterpart 2 a, 3 c.
  • the clamping force is chosen so large that the singly shaped preformed component 1 cannot slip, or only slightly, during its movement.
  • the middle region 1 b of the singly shaped preformed component 1 is initially freely exposed.
  • edge punch 2 a opposite the height-adjustable edge die 3 a forces the said edge die 3 a downwards.
  • the movable edge punch 2 c is blocked in its downward movement by the rigid edge die 3 c.
  • the relative movement between the individual edge punches 2 a, 2 c and edge dies 3 a, 3 c, in conjunction with the clamping and the inclined position ensures that the middle region 1 b of the singly shaped preformed component 1 is increasingly lengthened with respect to the rigid side 1 c and thereby deflected.
  • the tool parts finally move into their starting position, as indicated by arrow 7 , wherein the return movement direction of the force-acting adjustment means to the starting position is indicated by the arrow 5 ′, and the finally shaped component 8 can be removed and if necessary placed in a calibration tool, not shown, where a high degree of dimensional accuracy is established in the course of the calibration.
  • the optional calibration tool has in particular a solid or split calibration die and likewise one-part or multi-part calibration punches as well as auxiliary elements for loading, support, positioning and ejecting. After the calibration, the finally shaped, highly dimensionally accurate component 13 can be removed.
  • the device according to the invention comprises only two tools, a first tool for producing the singly shaped preformed component and the forming tool for further shaping with combined calibration.
  • the tool for producing the singly shaped preformed component is for example the same tool as in the variant of the first exemplary embodiment, thus for example a tool for embossing and raising or for robust deep drawing with a distanced outer hold-down device or a roll forming with subsequent portioning.
  • the tool for the final shaping and calibration of the singly shaped preformed component comprises in combination a centre tool part and two edge tool parts, wherein the centre tool part has a central punch 2 b and a centre die 3 b, and the first edge tool part has an edge punch 2 a and a height-adjustable edge die 3 a.
  • the second edge tool part has a movable edge punch 2 c and a rigid edge die 3 c.
  • the height-adjustable edge die 3 a and the rigid edge die 3 c each optionally has an inner hold-down device 10 .
  • the movable edge punch 2 c associated with the rigid edge die 3 c is movably mounted by hydraulic or other force-acting adjustment means relative to the other punches, namely the central punch 2 b and the edge punch 2 a of the first edge tool part.
  • the forming tool is in a desired inclined position with respect to the downward movement 4 of the press.
  • the dies 3 a, 3 b, 3 c and punches 2 a, 2 b, 2 c have a calibration function, so that they are forming dies with a calibration function or forming punches with a calibration function.
  • the forming tool for the calibration process has means for blocking the flow of material beyond the edge of the component, in the form of the side shut-off walls 9 and optionally front-face shut-off walls, not shown, as well as the possibility of clamping individual base regions of the preformed component 1 via the raised hold-down device 10 if required.
  • the forming punches 2 a, 2 b, 2 c are initially in the raised position.
  • the height-adjustable forming edge die 3 a is raised for example by means of the spindle sleeves of the press and optionally hydraulic or other force-acting adjusting means, the direction of movement 5 of these force-acting adjusting means being illustrated, to the level of the rigid forming edge die, indicated by the arrow 6 .
  • the other two dies 3 b, 3 c are in their end position, and are rigid and are not moved.
  • the optional inner hold-down device of both edge dies 3 a, 3 c is extended.
  • the singly preformed component 1 is inserted into the die.
  • the positioning of the component 1 can be effected through the positive connection to the two edge dies 3 a, 3 c and/or through the optionally raised inner hold-down device 10 of the rigid edge die 3 c.
  • the three forming punches 2 a, 2 b, 2 c are lowered by the movement of the press punch, indicated by the arrow 4 .
  • the force-acting mounted edge punch 2 c and also the raised, height-adjustable edge die 3 a clamp the singly shaped preformed component 1 between their respective counterpart 2 a, 3 c, i.e. parts of the die bottom or the optionally raised hold-down device 10 . Since the cross section of the preformed component 1 deviates from the final shape, the clamping is initially possible only over some regions of the inner hold-down device 10 .
  • edge punch 2 a opposite the movable edge die 3 a displaces the said edge die 3 a with the raised hold-down device 10 downwards.
  • the movably mounted edge punch 2 c is blocked in its downward movement by the rigid edge die 3 c.
  • the raised hold-down devices 10 are also forced downward, as shown in FIG. 2 e .
  • the upsetting process then finally starts, in which in particular through contact with the shut-off means 9 all excess surface portions of the component 13 finally formed in the meantime are increasingly compressed.
  • the tool parts move into their starting position, as indicated by the arrow 7 , wherein the return movement direction of the force-actuating adjusting means to the starting position is indicated separately by arrow the 5 ′.
  • the finally shaped, highly dimensionally accurate component 13 can be removed and transferred to the further processing chain.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
US16/841,041 2017-10-06 2020-04-06 Method and device for producing shaped sheet-metal components by means of preformed components Abandoned US20200230688A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2017/075518 WO2019068345A1 (de) 2017-10-06 2017-10-06 Verfahren und vorrichtung zur herstellung von geformten blechbauteilen mittels vorgeformten bauteilen

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2017/075518 Continuation WO2019068345A1 (de) 2017-10-06 2017-10-06 Verfahren und vorrichtung zur herstellung von geformten blechbauteilen mittels vorgeformten bauteilen

Publications (1)

Publication Number Publication Date
US20200230688A1 true US20200230688A1 (en) 2020-07-23

Family

ID=60022115

Family Applications (1)

Application Number Title Priority Date Filing Date
US16/841,041 Abandoned US20200230688A1 (en) 2017-10-06 2020-04-06 Method and device for producing shaped sheet-metal components by means of preformed components

Country Status (6)

Country Link
US (1) US20200230688A1 (ja)
EP (1) EP3691807A1 (ja)
JP (1) JP2020535971A (ja)
KR (1) KR20200063194A (ja)
CN (1) CN111182979A (ja)
WO (1) WO2019068345A1 (ja)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112157174B (zh) * 2020-09-14 2023-02-17 一汽解放汽车有限公司 一种变截面纵梁预弯模具及变截面纵梁预弯装置
JP7494883B2 (ja) 2021-11-18 2024-06-04 Ｊｆｅスチール株式会社 プレス成形方法およびプレス成形品の製造方法
CN114769434A (zh) * 2022-03-24 2022-07-22 日照兴业汽车配件股份有限公司 一种成型模及其使用方法

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5973120A (ja) * 1982-10-19 1984-04-25 Toyota Motor Corp プレス品の曲げ加工方法
JP2773345B2 (ja) * 1990-01-30 1998-07-09 日産自動車株式会社 絞り加工型
DE19802589A1 (de) * 1998-01-23 1999-07-29 Acera S A Vorrichtung zum schrittweisen Biegen von Metall-Bändern und/oder Blechen
FR2792558B1 (fr) * 1999-04-21 2002-01-18 Serinox Sa Procede et outils d'emboutissage, applications notamment a l'emboutissage de banquettes, et articles emboutis, notamment banquettes ainsi obtenues
DE10130404B8 (de) * 2001-06-23 2010-02-11 Bayerische Motoren Werke Aktiengesellschaft Verfahren zum Tiefziehen eines Blechbauteils einer Kraftfahrzeugkarosserie
JP2005103579A (ja) * 2003-09-29 2005-04-21 Shigeru Co Ltd プレス絞り加工方法及びその金型装置
JP4568077B2 (ja) * 2004-10-19 2010-10-27 新日本製鐵株式会社 形状凍結性に優れたプレス金型
DE102007059251A1 (de) 2007-12-07 2009-06-10 Thyssenkrupp Steel Ag Herstellverfahren hoch maßhaltiger Halbschalen
DE102008037612B4 (de) 2008-11-28 2014-01-23 Thyssenkrupp Steel Europe Ag Verfahren und Werkzeugsatz zur Herstellung von flanschbehafteten, hoch maßhaltigen und tiefgezogenen Halbschalen
JP2010167480A (ja) * 2009-01-26 2010-08-05 Honda Motor Co Ltd プレス成形用金型及びプレス成形方法
DE102009059197A1 (de) 2009-12-17 2011-06-22 ThyssenKrupp Steel Europe AG, 47166 Verfahren und Vorrichtung zur Herstellung eines Halbschalenteils
DE102011050001A1 (de) 2011-04-29 2012-10-31 Thyssenkrupp Steel Europe Ag Verfahren und Vorrichtung zur Herstellung von flanschlosen Ziehteilen
IN2015DN01290A (ja) * 2012-09-12 2015-07-03 Nippon Steel & Sumitomo Metal Corp
DE102013103751A1 (de) * 2013-04-15 2014-10-16 Thyssenkrupp Steel Europe Ag Verfahren zur Herstellung von hochmaßhaltigen Halbschalen und Vorrichtung zur Herstellung einer Halbschale
CN105848801B (zh) * 2013-12-20 2018-12-11 杰富意钢铁株式会社 冲压成型方法以及冲压成型部件的制造方法
MX2017003395A (es) * 2014-09-18 2017-06-19 Nippon Steel & Sumitomo Metal Corp Metodo para fabricar articulo moldeado, molde y articulo moldeado tubular.
RU2673266C2 (ru) * 2014-10-03 2018-11-23 Ниппон Стил Энд Сумитомо Метал Корпорейшн Способ изготовления изделия, получаемого обработкой давлением, и изделие, получаемое обработкой давлением
JP6162677B2 (ja) * 2014-11-28 2017-07-12 豊田鉄工株式会社 ホットスタンプトリム部品
WO2016104376A1 (ja) * 2014-12-22 2016-06-30 新日鐵住金株式会社 ハット形断面部品の製造方法
CN204912375U (zh) * 2015-07-07 2015-12-30 天津市鸣利金属结构制造有限公司 一种钢板压弯装置
CN205763394U (zh) * 2016-06-26 2016-12-07 内蒙古民族大学 一种镁合金拼焊板拉深成形装置

Also Published As

Publication number Publication date
CN111182979A (zh) 2020-05-19
WO2019068345A1 (de) 2019-04-11
KR20200063194A (ko) 2020-06-04
EP3691807A1 (de) 2020-08-12
JP2020535971A (ja) 2020-12-10

Similar Documents

Publication Publication Date Title
US20170225216A1 (en) Method and device for producing a half-shell part
US8522593B2 (en) Method and device for producing highly dimensionally accurate flanged half shells
CN109414745B (zh) 冲压部件的制造方法及制造装置
CN104870118B (zh) 冲压部件、其制造方法以及制造装置
US9839954B2 (en) Method for producing center pillar reinforcement
US10065229B2 (en) Method for producing highly dimensionally accurate half-shells and apparatus for producing a half-shell
KR102043655B1 (ko) 해트형 단면 부품의 제조 방법
RU2627833C2 (ru) Способ производства штампованных элементов и штамповочное устройство
US20200230688A1 (en) Method and device for producing shaped sheet-metal components by means of preformed components
RU2668171C2 (ru) Способ изготовления штампованного изделия и пресс-форма
CN105307790A (zh) 高尺寸精度的半壳体的生产方法及顶锻设备
CN111727089B (zh) 冲压部件的制造方法、冲压成型装置和冲压成型用的金属板
KR101579028B1 (ko) 폐단면 구조 부품의 제조 방법 및 장치
US20190143624A1 (en) Downholding press for producing a semi-finished product from sheet-metal material having thickness-reduced regions, and method for producing a sheet-metal formed part
CN109789468B (zh) 用于生产具有进行了匹配的底部区域的构件的方法和装置
US9669448B2 (en) Tool and method for producing stamped parts
CN109689243B (zh) 用于生产成型的、尤其具有凸缘的板构件的方法和装置
US11090710B2 (en) Method and die set for forming a surface in a metal panel
US11267032B2 (en) Method for producing sheet metal components and device therefor
CN109862973B (zh) 用于制造薄板部件的方法和工具
EP2845662B1 (en) Press and method for the manufacture of a profile
US9186714B1 (en) Process for making a stamped tubular form with integral bracket and products made by the process
CN111699058B (zh) 成型模具和用于在构件上制造棱边的方法以及用于制造这种成型模具的方法
JP7173847B2 (ja) プレス成形方法
JP7261826B2 (ja) プレス成形品の製造方法

Legal Events

Date Code Title Description
STPP Information on status: patent application and granting procedure in general

Free format text: APPLICATION DISPATCHED FROM PREEXAM, NOT YET DOCKETED

AS Assignment

Owner name: THYSSENKRUPP AG, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:FLEHMIG, THOMAS;NIERHOFF, DANIEL;KIBBEN, MARTIN;SIGNING DATES FROM 20200420 TO 20200421;REEL/FRAME:052778/0045

Owner name: THYSSENKRUPP STEEL EUROPE AG, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:FLEHMIG, THOMAS;NIERHOFF, DANIEL;KIBBEN, MARTIN;SIGNING DATES FROM 20200420 TO 20200421;REEL/FRAME:052778/0045

STPP Information on status: patent application and granting procedure in general

Free format text: DOCKETED NEW CASE - READY FOR EXAMINATION

STPP Information on status: patent application and granting procedure in general

Free format text: NON FINAL ACTION MAILED

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION