EP1056556B1 - Dispositif de sertissage a elements de pression et de serrage - Google Patents

Dispositif de sertissage a elements de pression et de serrage Download PDF

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Publication number
EP1056556B1
EP1056556B1 EP99906187A EP99906187A EP1056556B1 EP 1056556 B1 EP1056556 B1 EP 1056556B1 EP 99906187 A EP99906187 A EP 99906187A EP 99906187 A EP99906187 A EP 99906187A EP 1056556 B1 EP1056556 B1 EP 1056556B1
Authority
EP
European Patent Office
Prior art keywords
flanging
beading
clamping
workpiece
flare
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP99906187A
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German (de)
English (en)
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EP1056556A1 (fr
Inventor
Ernst Zimmer
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.)
KUKA Systems GmbH
Original Assignee
KUKA Schweissanlagen 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
Priority claimed from DE29801153U external-priority patent/DE29801153U1/de
Priority claimed from DE29801147U external-priority patent/DE29801147U1/de
Application filed by KUKA Schweissanlagen GmbH filed Critical KUKA Schweissanlagen GmbH
Publication of EP1056556A1 publication Critical patent/EP1056556A1/fr
Application granted granted Critical
Publication of EP1056556B1 publication Critical patent/EP1056556B1/fr
Anticipated expiration legal-status Critical
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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
    • B21D19/00—Flanging or other edge treatment, e.g. of tubes
    • 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
    • B21D39/02—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 by folding, e.g. connecting edges of a sheet to form a cylinder
    • B21D39/021—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 by folding, e.g. connecting edges of a sheet to form a cylinder for panels, e.g. vehicle doors
    • 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
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53709—Overedge assembling means
    • Y10T29/53787—Binding or covering
    • Y10T29/53791—Edge binding

Definitions

  • the invention relates to a flanging device with the Features in the preamble of the main claim.
  • Such a flanging device is from DE-A-43 30 683 known. It has a foldable bed that can be raised and lowered two crimping units, each two different Have flaring steels for pre and finish flanging.
  • the Flanging drive is arranged on the flanging bed, which the Flare stroke is carried out by a lifting movement.
  • the Crimping units can only be attached to the crimping bed be pivoted, with a height adjustment of the Flaring bed the pre and finished flaring steels in Work position.
  • the workpiece is over resilient hold-down clamped to the flare steels attack together and simultaneously on the workpiece.
  • the invention solves this problem with the features in the main claim.
  • the flanging device according to the invention can work with different tensioning devices.
  • the leading pressing and clamping elements have the advantage that they allow a predeterminable clamping sequence of arbitrarily selectable points of the workpiece or workpieces when the clamping device is delivered. These pressing and clamping elements are deformable or can be deflected so that their leading function can be canceled again at the end of the clamping movement, so that a uniform clamping of the workpiece or workpieces takes place at all provided locations.
  • the flanging device according to the invention comes with a low construction effort and has an arbitrarily adjustable and variable kinematics. Retrofitting and Tool changes are quick and easy carry out.
  • the crimping unit can be very easily and control exactly. The drive is straightforward.
  • the whole Crimping unit is insensitive to interference and has a high number due to the small number of moving parts Operational safety. This also has advantages for the simple and inexpensive maintenance of the Flaring device.
  • the basic components of the crimping units are standardized and independent of the workpiece shape. she can therefore be pre-produced and reuse a workpiece change.
  • the invention allows Flanging device a change of the flanging tools regardless of the flare stroke. Is of particular advantage that the flare stroke can be very small and with a high force can be performed. In particular does the crimping head according to the invention no additional Height and infeed height in the flaring area. This is before especially in the preferred training as a turning roller Case. When using several crimping units, their Flanging tools can be changed independently.
  • the entire crimping unit is small and can be done particularly cheap and easy on the flanging device place.
  • the low overall height also has advantages regarding the other components of the Flaring device. So the rotating roller allows one Tool change under the clamping device, resulting in Position can remain on the workpiece and this during the Tool change holds.
  • the low height allows it furthermore, to arrange the crimping unit at an angle to thereby if necessary, a better direction of flanging force vertically to create the loaded workpiece surface. If the crimping unit according to the invention on the outside of the The workpiece is arranged obliquely, the invention has the Advantage that because of the lower height of the Crimping unit the signal-to-noise ratio to a possible Inner flaring device is larger.
  • the formation of the flanging unit according to the invention also allows for any shapes and sizes of Use flaring tools. If necessary, a longer or multi-part crimping head can be provided, the arranged on two or more flanging units and over Intermediate storage is supported in a suitable manner.
  • the crimping head can carry several crimping tools. In the preferred embodiment, he takes two flare steels Pre and finish flaring.
  • the formation of the crimping head as a rotary roller has the advantage that for the Tool adjustment using a particularly simple kinematics safe management and attitude is given.
  • the crimping head can be completely independent of Flare drive, which generates the flare stroke, set and be positioned.
  • the rotary actuator for the Flanging head preferably has a crank mechanism. This allows for the adjustment of the crimping head with get along with low driving forces and in Working position nevertheless positive high holding forces to develop in order to achieve correspondingly high flaring forces transfer.
  • the flaring tools can be one or more Have centering inserts that have a stop and Have a centering function for the workpiece (s). These centering stops are also for holding and Positioning the workpiece when changing tools and advantageous when turning the crimping head. Special There are advantages if the flanging device as a combination device with an external and internal flaring device is trained.
  • the centering inserts facilitate a time shift Delivery of the crimping unit. This allows the Workpiece final shape can be influenced. In addition, Compensate for warping or dimensional errors.
  • the crimping unit can be one or more movable and have driven tensioners which are separate from the Flanging tools can be actuated.
  • the tensioner is behind the crimping heads are arranged and overlap them. This allows the Flanging heads for changing tools under the clamps turn, the workpiece (s) at one timed tool changes can remain excited.
  • the tensioner assigned to the crimping unit (s) an external clamping device, e.g. one replace vertical or swiveling stenter. she can also complement it alternatively.
  • FIGS 1 to 3 show an overview Flaring device (1).
  • This consists of one Machine frame (2) on which several External flanging devices (6) and one or more Inner flanging devices (7) are arranged.
  • a swivel Tensioning device (3) with a tensioning frame (69) arranged.
  • a lifter (8) Also located on the machine frame (2) a lifter (8).
  • the flanging device (1) is for processing one or several workpieces (9) are provided, in which prepared flanging flanges (63) (see FIG. 16) initially pre-flared and then flanged. Both Workpieces (9) can be any parts. In the preferred embodiment, the Flanging device (1) for processing Vehicle body parts, in particular doors.
  • the Workpieces (9) can have one or more openings (10). These openings can e.g. Window openings or the like.
  • the flanging device (1) can within a Station the workpieces (9) pre-flared and finished become.
  • the flanging device (1) also allows inside and outside flanging within the same station perform. The inside and outside flanging can be done happen simultaneously or with a time delay.
  • the Inner flanging takes place in the area of the openings (10), especially window cutouts, instead.
  • the workpieces (9) are of a suitable Transport device supplied correctly.
  • the embodiment takes place via a Multi-axis industrial robot that the workpieces (9) after from flanging again.
  • the machine frame (2) has a crimping bed (5) suitable conditions for the inclusion of one or more Workpieces (9).
  • the crimp bed (5) can also be a or several positioning or centering pins for precise positioning Have positioning of the workpiece (s) (9).
  • the Workpieces (9) are closer by the following described clamping frame (69) to the crimp bed (5) pressed and held in the desired position.
  • the Tensioning frame (69) can be attached to the underside Workpieces (9) formally adapted clamping contour (70) and optionally one or more pressure and tensioning elements (71).
  • On the clamping device (3) can also one or more centering pins (41) or other positioning aids.
  • the lifter (8) is oblique and essentially parallel to the one described in more detail below Inner flanging device (7) arranged. It is located in Interior and essentially below the Machine frame (2) or crimp bed (5). It serves for Picking up and positioning the workpieces (9).
  • the pivoting clamping frame (69) results in its Opening position is wide open at the side and upwards Access opening (44) through which the delivery device or the aforementioned industrial robot workpieces (9) delivers and picks up again.
  • the Lifter (8) For feeding the workpieces (9) is the Lifter (8) in an extended position (not shown).
  • the lifter (8) has several suitable ones Recordings for receiving and storing the workpieces (9).
  • On the recordings can be centering pins (42) or others Positioning elements may be arranged, e.g. as one Precise centering of the supplied workpieces (9) on the Lifters (8) are formed.
  • the delivery device or the industrial robot does this or the workpieces (9) on the extended lifter (8) in a precise and precisely centered position.
  • the Lifter (8) then moves back and positions the or the workpieces (9) on the flare bed (5).
  • the lifter (8) can be part of the Form crimp bed (5) and preferably remains with Flanging connected to the workpiece (s).
  • the Workpieces (9) are thus precisely in the Flanging device (1) held and can in the edited in the manner described below.
  • the lifter (8) moves diagonally upwards again and presents the workpieces (9) for collection Delivery device ready.
  • the inner flanging device (7) has extendable and retractable Flanging tools (16, 17) so that the workpieces (9) with the Opening (10) over the inner crimping device (7) can be placed on the crimp bed (5).
  • the External crimping device (6) can be in a rest position be moved back and give the way in this position for the lifter (8) and the workpieces (9) for the Delivery and collection free.
  • the outer crimping device (6) and the Inner crimping device (7) can be independent of each other positioned opposite the workpiece (s) (9) and aligned and operated separately. They have in addition, several separately operable flanging units (11) with their own flanging drives (14).
  • the Inner flanging device (7) has hydraulic drives for retracting and extending the flanging tools (16, 17) and for the flare stroke. It is preferably in accordance with the DE-U-296 12 192 trained.
  • the outer flanging device (6) is closer in FIGS. 4 to 7 shown. It consists of one or more on Machine frame (2) or on the crimp bed (5) preferably hanging flanging units (11) with their Flanging tools (16,17) together the flanging Include the outer contour of the workpieces (9).
  • the Flanging units (11) each have a flanging head (12) and a flanging drive (14).
  • the crimping head (12) carries the flaring tools (16, 17). These are e.g. around flaring steels for pre- and finish flanging.
  • the flanging tools (16, 17) usually have the same Length like the crimp heads (12). It is also a variation possible that the lengths differ and subdivisions arise by e.g. a crimping head (12) excess length has and two or more axially one behind the other Arranged shorter pre and finished flare steels (16.17) wearing. Figure 11 shows this arrangement.
  • the crimping tools (16, 17) are suitable inserts on prepared recessed recordings of the crimping head (12) interchangeably attached.
  • the recordings are like this dimensioned that they different operational and Can grasp tool sizes.
  • the pre and Finished flare steels (16, 17) are on different places of the crimping head (12).
  • the crimping head (12) is opposite to the one below described flare drive (14) independently adjustable. He brings the flaring tools (16, 17) through a Head movement in the respective working position.
  • Figure 4 shows the crimping head (12) in pre-crimping position.
  • Figure 5 shows the finished flanging position and
  • FIG. 6 the Rest position in which the entire flanging unit (11) from Machine frame (2) is pivoted away.
  • the crimping head (12) can be done in different ways be agile.
  • the Flanging head (12) designed as a rotating roller, which in one main horizontal axis at repositories (23) is pivotally mounted.
  • the crimping head (12) or the rotating roller can also be a have greater length and in several Flanging head sections (13) can be subdivided together are driven.
  • the crimping head sections (13) are then, if necessary, on the inside Contact point (s) rotatably supported via intermediate bearings (22) and supported.
  • Figures 11 and 12 illustrate this Arrangement.
  • the crimping head (12) or the individual crimping head section (13) is moved by a swivel drive (18). About the The pre- and finished flaring steels turn (16,17) brought into the working position. You are on Flanging head (12) arranged close to each other over a corner and are at an angle of preferably approximately 90 ° to 120 ° to each other. The crimping head (12) leads one and forth rotary motion with a corresponding Angle of rotation.
  • the swivel drive (18) consists of a suitable one Drive element, e.g. a pneumatic cylinder and one suitable motion transmitter, e.g. a crank mechanism (19).
  • the crank mechanism (19) has an arm with the Piston rod connected to the cylinder, which is essentially is arranged vertically.
  • the other crank arm is over a backdrop (20) connected to the crimping head (12).
  • the Crank arm attacks a sliding block that is in a suitable backdrop guide on the flanging head (12) and is kept movable.
  • the angular position of the crank arms is between approx. 90 ° and 140 ° and is preferably chosen so that the to Crimping head (12) leading crank arm in the in Figure 4 shown pre-flaring position substantially perpendicular to Link guide (20) stands and with the cylinder retracted applies the necessary holding forces for the flare stroke.
  • the extended cylinder is the one to the crimping head (12) leading crank arm with its bearing for the Backdrop (20) between the finished flare (17) and the Swivel axis (15).
  • the crank arm takes a relative flat and slightly inclined upwards Position on. He is essentially back there perpendicular to the slide guide (20).
  • the end positions of the crank mechanism (19), which also the Represent the working positions of the flaring tools (16, 17), are limited and defined using swivel stops (21).
  • the cylinder (18) is only extended and retracted.
  • Stop screws with relatively fixed Interact with stop heads.
  • Flare stroke stops (37) are available. These are on different to the bearing axis of the crank mechanism (19) vertical planes and around the swivel angle of the Crank drive (19) arranged offset on the circumference.
  • Each one of the two flare stroke stops (37) points into the two working positions shown in Figures 4 and 5 vertically downwards and acts relatively with each stationary adjustable stops together.
  • Stop screws (65) or the like are the primary and Finishing flaring stroke independently adjustable and capped.
  • the crimping head (12) is together with the swivel drive (18) attached to a bracket (25) and stored.
  • the Console (25) is in turn via a console guide (26) mounted on a swivel arm (24) for longitudinal movement. About the Movement of the console (25) along the swivel arm (24) the flaring stroke is carried out.
  • the console (25) forms together with the swivel arm (24) and a flanging cylinder (30) the flanging drive (14).
  • the flare drive (14) is separate from the swivel drive (18) of the flanging head (12).
  • FIGs 4 to 7 illustrate one embodiment of the Flare drive (14).
  • Figure 8 shows a variant of this.
  • the flanging drive (14) generates the feed movement, as well as the flanging movement and that independently adjustable from each other and separately or with separate chronological order.
  • the flaring tools (16, 17) with delivery in a defined and static certain starting or working position from which the flaring stroke takes place.
  • an appropriate Path or time monitoring and control all Crimping units (11) one after the other or simultaneously in the Starting or working position where brought can wait for each other. From here you can with a freely selectable time sequence, especially together and at the same time, carry out the flaring stroke.
  • FIG. 1 shows a variant in which the Flanging units (11) inclined in the working position are and the flare stroke is a correspondingly sloping Has direction of movement.
  • the flaring stroke is included preferably directed obliquely outwards.
  • a spring preferably in its stroke an adjusting device (28) can be limited.
  • the Spring (27) is also biased.
  • the spring (27) is preferably designed as a compression spring and acts Flaring cylinder (30) counter.
  • the spring (27) is there parallel to the sled-shaped console guide (26) aligned.
  • the adjusting device (28) consists e.g. from a set screw with clamping.
  • the flare stroke stops (37) described above define the lower flare end position or limit the flare stroke.
  • the Set screws (65) for the flare stroke stop are on Swivel arm (24) arranged.
  • the angular position of the Flanging tools (16, 17) on the flanging head (12) is with the Rotary movement of the swivel drive (18) or the shape of the Crank drive (19) matched so that the Flanging tools (16, 17) in working position in are essentially at the same height and location.
  • the flaring stroke is achieved by the flanging cylinder (30) executed the console (25) against the force of the spring (27) pulls down on the swivel arm (24).
  • the flanging cylinder (30) executed the console (25) against the force of the spring (27) pulls down on the swivel arm (24).
  • the flanging cylinder (30) executed the console (25) against the force of the spring (27) pulls down on the swivel arm (24).
  • the flanging cylinder (30) executed the console (25) against the force of the spring (27) pulls down on the swivel arm (24).
  • Flare cylinder (30) via a toggle lever (31).
  • FIG. 8 engages the flanging cylinder (30) directly to.
  • the flaring stroke is preferred for pre and finish flanging rectified. This applies to the outer flaring device (6) and the inner crimping device (7).
  • the stroke direction is aligned vertically or obliquely. It aims in the Usually towards the crimp bed (5) and in the shown Embodiment down.
  • the flanging cylinder is in the variant from FIGS. 4 to 7 (30) with its housing via a cylinder bearing (35) rotatably attached to the console (25).
  • the piston rod accesses via a connection (32) on the central bearing of the Toggle lever (31).
  • One end of the lever is over one stationary eye (34) fixed on the machine frame (2) stored.
  • the other swivel arm eye (33) is on the swivel arm (24) arranged.
  • FIGS. 4 and 5 show the pivoted rest position of the Crimping unit (11). In this position is the Flare cylinder (30) retracted and the knee lever (31) bent accordingly.
  • the toggle lever (31) brought into the extended position shown in FIGS. 4 and 5 becomes.
  • the extension movement and the stretching position are limited and defined by a swivel stop or Lever stop (36).
  • the Piston rod with the connection (32) is the first stretching movement pivoted.
  • the required cylinder force is less than the counterforce of the spring (27). This will the cylinder force is diverted into the pivoting movement. Finds between the swivel arm (24) and the console (25) no relative movement and therefore no flare stroke instead of.
  • the force of the spring (27) is approximately 10% of the maximum Cylinder force.
  • the spring (27) has a clamping force of 1 t and the flanging cylinder (30) a force of 10 t.
  • the Spring force is also greater than that Resistance to movement of the swivel arm (24), e.g. Mass inertia, friction forces etc.
  • the swivel arm (24) e.g. Mass inertia, friction forces etc.
  • the flanging cylinder (30) is supported by the spring (27) and brings the console (25) in the starting position opposite the swivel arm (24) or the adjusting device (28) to the stop on the swivel arm (24).
  • the further retraction movement causes the buckling of the Toggle lever (31) and the pivoting of the flanging unit (11) in the rest position shown in Figure 6.
  • the toggle lever (31) extends in Stop position preferably horizontal and in essentially perpendicular to the connecting line between the Bearings (29.34). At the lever bearing (34) in The horizontal reaction forces and the working position Reaction moments supported by flanging.
  • the toggle lever (31) is missing in the variant of FIG.
  • the Flare cylinder (30) is instead with its connection (32), preferably the piston rod connection, rotatable on Machine frame (2) stored.
  • the connection (32) similar effect as the bearing (34) and supports the Reaction forces and the reaction moments from flanging on Machine frame (2).
  • Cylinder bearing (35) is the flanging cylinder (30) as in first embodiment connected to the console (25).
  • FIG. 8 shows three different ones Operating positions of the flanging unit (11). In the left shown rest position is the flare cylinder (30) in essentially vertically aligned and the crimping unit (11) pivoted similarly as in Figure 6.
  • FIG. 8 The middle representation of Figure 8 shows the Flare starting position and the right representation the Flanging or working position of the flanging unit (11) on End of the flaring stroke.
  • Flaring cylinder (30) aligned obliquely.
  • the horizontal Force component stabilizes the swung-in flare or working position and is about the Supported bracket guide (26). Besides, that is Swiveling movement of the swivel arm (24) over a Swivel stop (36) opposite the machine frame (2) limited.
  • Figures 11 and 12 illustrate in a perspective Representation or a top view External crimping device (6) and the arrangement of the Crimping units (11) with their crimping heads (12).
  • the Figures also show the design and arrangement of the Flare steels (16.17).
  • the Flanging units (11) in the rest position shown in FIG. 6 pivoted back. In this position you can use the Swivel drive (18) the crimping heads (12) can be rotated.
  • crimping heads (12) with two or more Flanging head sections (13) may be several Swivel drives (18) arranged with each other via the Interim storage facilities (22) are synchronized and the Move the flare head sections (13) at the same time.
  • the Interim storage facilities (22) provide the necessary support and prevent deflections and other deformations.
  • FIGS 9 and 10 illustrate these tensioners (4) and their arrangement schematically and by way of example.
  • the flanging units (11) of the outer flanging device (6) one or assigned several such tensioners (4). They spread the crimping heads (12) and are in a suitable manner on Swivel arm (24) supported. They are preferably as Swing clamps are designed and have a clamp bearing (46) and a suitable tensioner drive (45), e.g. one Cylinder, which is supported on the swivel arm (24) and on Tensioner (4) via a boom with the link bearing (49) attacks.
  • one or more Similar clamps (4) on the clamping frame (69) and / or the swivel frame (48) can be arranged.
  • the tensioners (4) are like this in both exemplary embodiments trained that the flared heads (12) overlap and in the vicinity of the flare points on the Press workpieces (9).
  • the workpieces (9) remain in their position and Press position fixed.
  • the tensioners (4) are in front the swiveling back of the flanging units (11) to Tool change opened and after swiveling into the Working position closed again. If the workpiece (9) The tool change can always remain tense individual crimping units (11) at different times be made one after the other. To feed and discharge the Workpieces (9) can be clamped (4) in any case be moved back sufficiently.
  • clamps (4) are arranged with a clamp drive (45) and / or tensioner bearing (46) on the clamping frame (69) and / or on the swivel frame (48) in the interior of the Outer flanging device (6) must meet the requirements for Figure 9 and 10 are only taken into account to a limited extent, because then the Tensioner (4) the outer crimping device (6) as a rule neither spill over, nor when feeding and removing the Workpieces (9) act as a hindrance.
  • FIGS 1 to 3, 9, 10 and 19 to 21 illustrate the Clamping device (3), which in particular has at least one movable stenter (69) and / or one or more can have individual tensioners (4).
  • the stenter (69) is by means of a frame-like swivel device (48) Swing frame bearings (38) can be swiveled on the machine frame (2) stored.
  • the swivel frame drive (39) is preferably designed as a pivotable cylinder that a support column (40) of the machine frame (2) with its Housing is rotatably mounted.
  • the piston rod engages also rotatable on the swivel frame (48).
  • the clamping frame (69) in any other suitable way, e.g. by a vertical translational movement with a appropriate drive to be delivered.
  • the tensioning frame (69) carries the underside Clamping contour (70) and one or more suitable pressing and Clamping elements (71) for targeted pressing of the workpieces (9) against the crimp bed (5).
  • Such press and Clamping elements (71) can also be attached to the clamps (4) be arranged.
  • the pressing and tensioning elements can adapt to the shape of the Workpieces (9) adapted and rigid or movable or be deformable.
  • the leading pressing and tensioning elements (71) are longer than other pressing and tensioning elements (71) or are on Positions where pressing and clamping elements (71) in Clamping contact with the workpiece (s) (9).
  • the leading pressing and tensioning elements (71) thereby press the workpiece (s) (9) deliberately on certain selectable Start first. This results in a certain one Clamping order, the undesired deformations and / or Counteracts relocations of the workpiece (s) (9).
  • the leading pressing and tensioning elements (71) are in moving, e.g. resiliently or elastically deformable, and in the course of delivery give in to the end of the Clamping process a uniform system of all pressing and To allow clamping elements (71).
  • the Pressing and tensioning elements (71) deliberately with different Apply pressure to the workpiece (s) (9).
  • FIGS. 19 to 21 show an enlarged side view such pressing and tensioning elements (71) on the underside of the Tensioning frame (69) in the clamping position on the workpiece (9). she are modeled and have the workpiece contour to match one or more contact or printing areas for defined Holding and clamping the workpiece (s) (9).
  • the pressing and tensioning element (71) can e.g. the lower part of the clamping contour (70). You are there either a molded or attached part of the Clamping contour (70).
  • the pressing and tensioning elements (71) can but can also be arranged on hold-down devices (67) located on the clamping frame (69) or on the clamping contour (70).
  • the hold-down devices (67) can be used as interchangeable inserts be trained and to adapt to other workpieces (9) can be changed. You are about this for example a screw or the like at the bottom in one Recess of the clamping contour (70) releasably attached.
  • the Hold-down device (67) also at the ends of the tensioner (4) and / or on other clamping elements of the clamping device (3) sit.
  • the hold-down device (67) can be turned on or off be in several parts.
  • the leading pressing and tensioning elements (71) can be used as movable thrust pieces (68) are designed to be rigid or releasably on the hold-down devices (67) or on others Places the tensioning device (3) are attached.
  • the Pressure pieces (68) can e.g. 19 made of plastic or some other elastic material. She can also be springy according to FIGS. 20 and 21 (72) be stored. The elasticity or spring action can be In addition to the choice of materials, the shape influence.
  • the pressure pieces (68) have e.g. on- or several material weakenings through recesses or Breakthroughs that target deformations in one or allow multiple directions.
  • the spring (72) or Inherent elasticity of the material In the end everyone is lying Press and clamping elements (71) evenly on the Workpieces (9), being in abutment on their supports come and their mobility is eliminated. The The clamping force is then via the feed drive Clamping device (3) applied.
  • the elasticity or spring force of the pressure pieces (68) can be different. This allows the pressure pieces (68) with different forces or presses on the or the workpieces (9) act.
  • the pressure pieces (68) are suitable are particularly suitable for use as leading press and Clamping elements (71). You are about that Possibilities of variation in their effect on the or Workpieces (9) by location or time and / or force or Pressure adjustable.
  • the elasticity or Mobility of the pressing and clamping elements can also without leading function.
  • the pressure pieces (68) can also be made from one hard and solid material, e.g. Steel or another Metal.
  • the pressure pieces (68) are in turn on the shape of the workpiece (9) in a suitable manner customized.
  • Figure 19 shows on the hold-down device (67) two press and tensioning elements (71), the rear of which is rigid is formed and the front as a movable and preferably leading pressure piece (68) is designed.
  • the pressing and tensioning elements (71) can have a fluid, e.g. have pneumatic or hydraulic preload.
  • they can be used as inflatable tube elements or the like. You can also multipart and designed to be flexible (e.g. telescopic) or be movable.
  • the swivel frame (48) has multi-axis adjustable Swing frame bearing (38).
  • the Swing frame bearings (38) as spherical or spherical bearings designed with three translatory adjustment axes.
  • the adjustment is made via a Adjustment of the tenter frame (69) with the swivel frame (48) as a whole.
  • the adapters and centering pins (41) or the other positioning aids are individually on Swing frame (48) and / or on the clamping frame (69) Positioned according to the application and adjustable arranged and are preferably not in their position changed.
  • the stenter (69) itself can also consist of several parts depending on the application.
  • the swivel frame bearings (38) are close to the Table surface of the machine frame (2).
  • the The swivel frame (48) is bent accordingly.
  • the Swing frame bearings (38) are in a preferred one Embodiment in or close to a workpiece plane (43), through the centering openings on the workpieces (9) is formed and defined. With such an alignment dip the centering pins (41) substantially vertically into and in the centering openings on the workpieces (9) develop essentially centering in the Workpiece level (43).
  • An arrangement close to the table Swing frame bearing (38) also allows a large one Access opening (44).
  • the swivel frame (48) and / or clamping frame (69) can preferably two to four or more in height have adjustable pads (64) on the periphery or preferably be arranged in the crimp bed area (5) can. These conditions (64) enable the support of the Clamping force of the clamping device (3) on the Machine frame (2) and thus a targeted partial variable clamping action on the workpiece (9) in order tension and shape-compensating movements of the workpiece (9) before or during the flaring process depending on the application allow or prevent.
  • the swivel frame bearing (38) via appropriate Brackets or supports at a distance above the Machine frame table (2) can be arranged.
  • Such Arrangement can depend on the training and arrangement of the Workpieces (9) may be required to the swing frame (48) or the clamping frame (69) in the arc between the Outside and if necessary inside flanging devices (6,7) to immerse yourself.
  • the arcuate tensioning movement can also be entirely or partially or combined replaced by straight-line guidance become. This enables different shapes and positions of the Workpieces (9) and arrangements of the flanging units (11) be taken into account.
  • FIGS. 13 to 18 show one in different representations Centering device for the workpiece (s) (9) in the flanging device (1).
  • the Flaring tools (16, 17) are one or more Centering inserts (50,51,58,59,60) arranged.
  • the Drawings show different variants for this.
  • Pre-flaring tool (16) such a centering insert (50) arranged and preferably over one or more Fitting plates (52) and a clamping element (62), preferably a screw connection, adjustable fastened.
  • the Centering insert (50) is oblique to the Recording or the pre-flanging tool (16) arranged. His Inclined position corresponds to the pre-flare angle (56) that the Flanging flank (66) of the pre-flanging tool (16) takes. The adjustment is thus in the direction of Flanging slope given.
  • the centering insert (50) is frontally in a corresponding Recess inserted in the pre-flaring tool (16). He's standing thereby in the manner described below Centering a little bit above normal Flare tool contour (53). In preferably everyone The centering inserts have an embodiment (50,51,58,59,60) a contour that the flare steel contour and thus also essentially the workpiece contour (57) corresponds.
  • Figure 13 shows another on the finished flanging tool (17) Variant of the centering insert (51). This is here in the essentially parallel to the base of the Tool holder aligned with the crimping head (12) and also in the manner described above with fitting plates (52) and a clamping element (62) adjustable. In both Embodiments can be arranged over several at an angle Fitting plates (52) an adjustment in several directions to be possible.
  • the centering insert (51) only contains the one below the Flare nose or flare flank (66) located Tool contour.
  • Figure 13 also shows a third variant of a Centering insert (58), which e.g. on the pre-flared steel (16) the inner flanging device (7) is arranged.
  • the also adjustable centering insert (58) is here arranged above the pre-flaring nose.
  • the centering inserts (50, 51) act on the workpieces (9) in the area of the flanges (63) and center the Outside contour of the workpieces (9).
  • the centering insert (58) acts on another part of the inner contour of the workpiece (9) one that may remains rigid and is not flared.
  • the workpiece (9) is in Figure 13 as a workpiece cut (55), which e.g. a section through parts of the Workpiece (9), in particular by a Window guide frame shows. This affects the Centering insert (58).
  • the window guide frame (55) and the associated inner part of the workpiece (9) can be held down (67) in the clamping frame (69) and preferably by interacting with the centering inserts (58) rigid or in the inner flare steels (16, 17) be held elastically on the crimp bed (5) (cf. Figure 2 and 19).
  • Figure 14 shows a variant of Figure 13, in which the Centering inserts (50.51) in the appropriate form and Training also on pre- and finished flaring tools (16, 17) of the inner flanging device (7) are arranged.
  • the centering insert (50) has Pre-flaring tool (16) is in an inclined position aligned according to the pre-flare angle (56). By this inclined position allows the centering insert (50) place particularly precisely and in the direction of the flare (66) adjust.
  • the support and centering function is therefore particularly good and the adjustment only one-dimensional required.
  • Figure 15 shows a further variant with centering inserts (59.60), which has a larger shape here than in the have previous embodiments and also by several clamping elements (62) are attached. They include almost the entire cross-sectional contour of the flaring tools (16.17).
  • the centering insert (60) on the finished flaring tool (17) also includes, in deviation from Figure 13 and 14 also the flank (66).
  • the centering inserts (59.60) are here on the inner flanging device (7) arranged. You can also send an email to Flanging heads (12) of the outer flanging device (6) be attached.
  • Figure 16 illustrates in an enlarged view Shape and function of the centering inserts (50,51,58,59,60).
  • the flanging tools (16, 17) have in their Initial flaring position before the start of the flaring stroke usually a certain lateral distance to the Workpiece (9.55).
  • the centering inserts (50,51,59,60) can with their underneath the flare (66) located centering contour (54) a piece over the project the normal flare steel contour (53) and thus lie on the workpiece with one or more surfaces (9.55).
  • the crimp bed (5) can be one or have several matching recesses (61).
  • Figure 16 also clarifies the position of the flange (63) during pre-flaring and finished flaring.
  • the centering inserts (50, 51, 58, 59, 60) are on in places the flanging tools (16, 17) arranged.
  • the workpiece (9.55) is thereby on the outer and / or inner circumference guided and centered at points in several places.
  • the centering inserts (50, 51, 58, 59, 60) enable this Influencing the workpiece shape during the infeed of the Flaring tools (16, 17) for inner and outer flanging and give the necessary centering and Holding functions, which is particularly important when changing the pre- and finished flaring tools (16, 17) are important can.
  • the workpiece When the outer crimping device (6) is in operation and pre-flanging, the workpiece is supported (9.55) against the flaring forces acting on the outer circumference the centering inserts (50,58,59) of the pre-flaring tools (16) of the inner flanging device (7). These are part of it at least moved into a standby position in which the flanging flanks (66) are a short distance above the Flared flanges (63).
  • the preferably below protruding centering contour (54) of the flanging flanks (66) then supports the workpiece (9.55) in the described Wear on the inner circumference.
  • the projecting centering contour (54) a shape correction of Bring the workpiece (9).
  • the inner pre-flanging can respectively.
  • external and internal pre-flaring run simultaneously or in a different order.
  • Support and centering function on the inner circumference of the workpiece (9.55) in the area of its opening (10).
  • the workpiece is supported during internal pre-flanging (9.55) on the outside on the centering inserts (50,59) External flanging device (6).
  • the counterpart is in Pre-flanging position of the outer flanging device (6) also the already angled flared flanges (63).
  • a flat contact of the flanged flange takes place (63) on the flanging flank (66) and / or the centering contour (54) instead.
  • the finished flanging tools (17) of the Outer and inner flaring device (6,7) simultaneously or be brought into position one after the other. Support them now the workpiece via its centering inserts (51, 60) (9.55) inside and outside.
  • the above centering contour (54) bridges the pre-flaring and curling of the flared flange (63).
  • the Finishing can then be done inside or outside one after the other done simultaneously.
  • FIG. 17 shows the Centering device according to arrow XVII of Figure 14. Man looks here, such as a centering insert (51) the workpiece contour (57) is adapted and the surface to to the flanging flank (66).
  • Figure 18 shows a section along the section line XVIII-XVIII of Figure 17. Recognized from this illustration using the example of a centering insert (51) the protrusion the centering contour (54) compared to the normal one Flare steel contour (53). In addition, the assignment and The shape of the recess (61) in the crimp bed (5) can be seen. Figure 18 also illustrates the limited width of the Centering inserts (50, 51, 58, 59, 60).
  • FIG possible in different ways are in FIG possible in different ways.
  • they can Flanging heads (12) differently designed, stored and are driven.
  • a crank mechanism a any other power and motion transmitter for Come into play.
  • the drive for the crimping head (12) can also an incidental other drive element instead of the Include cylinders.
  • the crimping heads (12) with a flanged drive (14) of any other design. be combined.
  • a flare drive (14) can fluidic, i.e. hydraulic or pneumatic Drives, also electric drives with suitable motors, Gears and spindles are used.
  • For the Delivery of the flanging unit and for the flanging stroke can separate drives can also be used.
  • the Different units can be arbitrarily based on tasks be combined, expanded or reduced. So can e.g. the lifters (8) when the workpiece is fed directly (9) on the flare bed (5) are completely eliminated.
  • the flanging device (1) can only have an outer flanging device (6).
  • the Centering inserts (50, 51, 58, 59, 60) can only be used the outer flanging units (11) can be arranged.
  • Variable are also the tensioning device (3) and the others Machine parts of the flanging device (1).
  • the clamping device (3) can be linearly movable.
  • the Tensioners (4) can be used instead of the moveable ones Flanging units (11) also stationary on the machine frame (2) be stored.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Jigs For Machine Tools (AREA)
  • Flanged Joints, Insulating Joints, And Other Joints (AREA)
  • Clamps And Clips (AREA)
  • Earth Drilling (AREA)

Claims (13)

  1. Dispositif de sertissage comportant un dispositif (6) de sertissage extérieur et/ou un dispositif (7) de sertissage intérieur ainsi qu'un dispositif (3) de serrage à éléments de pression et de serrage, caractérisé en ce que le dispositif (3) de serrage comporte un ou plusieurs éléments (71) de pression et de serrage à l'avance.
  2. Dispositif de sertissage suivant la revendication 1, caractérisé en ce que les éléments (71) de pression et de serrage sont réalisés mobiles et/ou déformables, et peuvent être réglés quant au lieu ou au moment et/ou à la force de leur action sur la ou les pièces (9).
  3. Dispositif de sertissage suivant la revendication 1 ou 2, caractérisé en ce que les éléments (71) de pression et de serrage sont élastiquement déformables ou comportent un ressort (72) ou une précontrainte par fluide.
  4. Dispositif de sertissage suivant la revendication 1, 2 ou 3, caractérisé en ce que les éléments (71) de pression et de serrage sont conçus comme éléments (68) de pression, qui sont adaptés à la pièce (9) et sont disposés sur un ou plusieurs serre-flans (67) du dispositif (3) de serrage.
  5. Dispositif de sertissage suivant l'une des revendications 1 à 4, caractérisé en ce que le dispositif (1) de sertissage comporte un dispositif (3) de serrage doté d'au moins un cadre (69) de serrage mobile.
  6. Dispositif de sertissage suivant l'une des revendications 1 à 5, caractérisé en ce que le dispositif (6) de sertissage extérieur et le dispositif (7) de sertissage intérieur peuvent être positionnés et orientés indépendamment l'un de l'autre par rapport à la ou les pièces (9), et peuvent être séparément actionnés.
  7. Dispositif de sertissage suivant l'une des revendications 1 à 6, caractérisé en ce que le dispositif (6) de sertissage extérieur et/ou le dispositif (7) de sertissage intérieur comportent respectivement plusieurs unités (11) de sertissage pouvant être séparément actionnées, dotées de propres entraínements (14) de sertissage.
  8. Dispositif de sertissage suivant l'une des revendications 1 à 7, caractérisé en ce que le dispositif (6) de sertissage extérieur et/ou le dispositif (7) de sertissage intérieur comportent des entraínements hydrauliques.
  9. Dispositif de sertissage suivant l'une des revendications 1 à 8, caractérisé en ce que le dispositif (3) de serrage comporte un ou plusieurs organes (4) de serrage associés au dispositif (6) de sertissage extérieur et/ou au dispositif (7) de sertissage intérieur.
  10. Dispositif de sertissage suivant l'une des revendications 1 à 9, caractérisé en ce que les outils (16, 17) de sertissage comportent un ou plusieurs inserts (50, 51, 58, 59, 60) de centrage.
  11. Dispositif de sertissage suivant la revendication 10, caractérisé en ce que les inserts (50, 51, 58, 59, 60) de centrage sont réglables.
  12. Dispositif de sertissage suivant la revendication 10 ou 11, caractérisé en ce que les inserts (50, 51, 58, 59, 60) de centrage sont réglables dans la direction de l'angle de sertissage, notamment de l'angle (56) de pré-sertissage.
  13. Dispositif de sertissage suivant l'une des revendications 10 à 12, caractérisé en ce que les inserts (50, 51, 58, 59, 60) de centrage comportent un contour (54) de centrage en saillie, et le banc (5) de sertissage possède des évidements (61) correspondants.
EP99906187A 1998-01-24 1999-01-22 Dispositif de sertissage a elements de pression et de serrage Expired - Lifetime EP1056556B1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE29801153U 1998-01-24
DE29801147U 1998-01-24
DE29801153U DE29801153U1 (de) 1998-01-24 1998-01-24 Bördeleinrichtung zum Innen- und Außenbördeln
DE29801147U DE29801147U1 (de) 1998-01-24 1998-01-24 Bördeleinrichtung mit Spanneinrichtung
PCT/EP1999/000402 WO1999037419A1 (fr) 1998-01-24 1999-01-22 Dispositif de sertissage a elements de pression et de serrage

Publications (2)

Publication Number Publication Date
EP1056556A1 EP1056556A1 (fr) 2000-12-06
EP1056556B1 true EP1056556B1 (fr) 2001-11-28

Family

ID=26061152

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99906187A Expired - Lifetime EP1056556B1 (fr) 1998-01-24 1999-01-22 Dispositif de sertissage a elements de pression et de serrage

Country Status (7)

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US (1) US6477880B1 (fr)
EP (1) EP1056556B1 (fr)
BR (1) BR9907221A (fr)
CA (1) CA2318544A1 (fr)
DE (1) DE59900465D1 (fr)
ES (1) ES2164488T3 (fr)
WO (1) WO1999037419A1 (fr)

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* Cited by examiner, † Cited by third party
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US6932263B2 (en) * 2002-04-08 2005-08-23 Progressive Tool & Industries Co. Vehicle framing system for plurality of vehicle body styles
ES2230972A1 (es) * 2002-12-24 2005-05-01 Imgemat, S.A. Engatillador compacto perfeccionado.
US6983633B2 (en) * 2003-10-24 2006-01-10 Ford Global Technologies, Llc Apparatus for roll hemming with zero angle deflection
US7043952B2 (en) * 2003-11-14 2006-05-16 Rsm. At Kraus & Pleniger Oeg Method and apparatus for forming flange corners
JP5101901B2 (ja) * 2007-02-07 2012-12-19 本田技研工業株式会社 ヘミング加工方法及びヘミング加工装置
JP2011152555A (ja) * 2010-01-27 2011-08-11 Honda Motor Co Ltd パネル投入方法、及びパネル投入支援装置
DE202010000426U1 (de) 2010-03-19 2011-08-09 Kuka Systems Gmbh Falzeinrichtung
DE202014105862U1 (de) 2014-12-04 2016-03-03 Kuka Systems Gmbh Falzwerkzeug und Falzeinrichtung
DE102014225384B4 (de) * 2014-12-10 2024-05-02 Volkswagen Aktiengesellschaft Vorrichtung und Verfahren zum Fixieren von Bauteilen während eines Falzvorganges

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US1764318A (en) * 1927-05-21 1930-06-17 Bliss E W Co Marginal hook-forming mechanism for can-body-making machines
DE1155414B (de) * 1959-09-15 1963-10-10 British Fed Welder And Machine Falzvorrichtung
GB929840A (en) * 1960-03-11 1963-06-26 British Federal Welder Clinching tools and units
GB1080471A (en) * 1963-10-17 1967-08-23 Ford Motor Co Machines for bending over the edges of metal sheets
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US5237734A (en) * 1991-04-01 1993-08-24 General Motors Corporation Method of interlocking hemmed together panels
EP0579893A1 (fr) 1992-07-23 1994-01-26 MONETA IMPIANTI S.p.A. Dispositif pour former des coins, fixés sans être souder, sur des articles en tôle
JPH06297046A (ja) 1993-04-16 1994-10-25 Torai Eng Kk ヘミング加工方法およびヘミング加工装置
DE4330683C2 (de) 1993-09-10 1995-07-27 Audi Ag Falzvorrichtung
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Also Published As

Publication number Publication date
EP1056556A1 (fr) 2000-12-06
ES2164488T3 (es) 2002-02-16
US6477880B1 (en) 2002-11-12
DE59900465D1 (de) 2002-01-10
CA2318544A1 (fr) 1999-07-29
WO1999037419A1 (fr) 1999-07-29
BR9907221A (pt) 2000-10-24

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