WO1999037418A1 - Dispositif de sertissage avec tete de sertissage - Google Patents

Dispositif de sertissage avec tete de sertissage Download PDF

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Publication number
WO1999037418A1
WO1999037418A1 PCT/EP1999/000399 EP9900399W WO9937418A1 WO 1999037418 A1 WO1999037418 A1 WO 1999037418A1 EP 9900399 W EP9900399 W EP 9900399W WO 9937418 A1 WO9937418 A1 WO 9937418A1
Authority
WO
WIPO (PCT)
Prior art keywords
flanging
head
centering
drive
tools
Prior art date
Application number
PCT/EP1999/000399
Other languages
German (de)
English (en)
Inventor
Ernst Zimmer
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 DE29801148U external-priority patent/DE29801148U1/de
Priority claimed from DE29801149U external-priority patent/DE29801149U1/de
Application filed by Kuka Schweissanlagen Gmbh filed Critical Kuka Schweissanlagen Gmbh
Publication of WO1999037418A1 publication Critical patent/WO1999037418A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/02—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
    • B21D39/023—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 using rollers
    • 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
    • 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
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/16—Folding; Pleating

Definitions

  • the invention relates to a flanging device with the features in the preamble of the main claim.
  • Such a flanging device is known from DE-A-43 30 683. It has a lifting and lowering crimping bed and two crimping units, each with two different crimping steels for pre- and finished flanging.
  • the flanging drive is arranged on the flanging bed, which carries out the flanging stroke by means of a lifting movement.
  • the flanging units can only be pivoted onto the flanging bed, the pre-flanging and finished flanging steels being brought into the working position by adjusting the height of the flanging bed.
  • EP-0 787 546 AI Another crimping device shows EP-0 787 546 AI. It has one or more flanging units which have a flanging drive and two different flanging tools for pre-flanging and finished flanging.
  • the flanging drive is designed as a link and cam gear and actuates the flanging tools. These are arranged separately from each other on their own handlebars.
  • This flaring device can be used to pre-flare and finish flanging within a station.
  • the invention solves this problem with the features in the main claim.
  • the flanging device according to the invention requires little construction effort and has an arbitrarily adjustable and variable kinematics. Conversion work and tool changes can be done quickly and easily
  • the crimping unit can be controlled very easily and precisely.
  • the drive is straightforward.
  • the entire flanging unit is insensitive to malfunctions and also has a high level of operational reliability due to the small number of moving parts. This also has advantages for the simple and inexpensive maintenance of the flanging device.
  • the basic components of the flanging units are standardized and independent of the workpiece shape. They can therefore be pre-produced and can be reused when changing workpieces.
  • the flanging device allows the flanging tools to be changed independently of the flanging stroke. It is particularly advantageous that the flanging stroke can be very small and can be carried out with a high force.
  • the flanging head according to the invention does not require any additional overall height and infeed height in the flanging area. This is especially the case with the preferred training as a rotating roller. When using several flaring units, their flanging tools can be changed independently of one another.
  • the entire flanging unit is small and can therefore be placed particularly cheaply and easily on the flanging device.
  • the low overall height also has advantages with regard to the other components of the flanging device.
  • the turning roller allows a tool change under the clamping device, which can remain in position on the workpiece and hold it in place during the tool change.
  • the low overall height also makes it possible to arrange the flanging unit at an angle, in order to create a better flanging force direction perpendicular to the workpiece surface. If the flanging unit according to the invention is arranged obliquely on the outside of the workpiece, the invention has the - 3 -
  • the signal-to-noise ratio to a possible inner flanging device is greater.
  • the configuration of the flanging unit according to the invention also makes it possible to use any shapes and sizes of flanging tools.
  • a longer or multi-part crimping head can be provided for this purpose, which is arranged on two or more crimping units and is supported in a suitable manner via intermediate bearings.
  • the crimping head can carry several crimping tools. In the preferred embodiment, it takes up two flaring steels for pre-flanging and finished flanging.
  • the formation of the crimping head as a rotary roller has the advantage that for the
  • Tool adjustment a particularly simple kinematics with safe guidance and setting is given.
  • the flanging head can be set and positioned completely independently of the flanging drive which generates the flanging stroke.
  • Flanging head preferably has a crank mechanism. This makes it possible to make do with low drive forces for the adjustment of the flanging head and nevertheless to develop form-fitting high holding forces in the working position in order to transmit correspondingly high flanging forces.
  • the flaring tools can have one or more centering inserts that have a stop and centering function for the workpiece (s). These centering stops are also advantageous for holding and positioning the workpiece when changing tools and when turning the crimping head. Particular advantages result if the flanging device is designed as a combination device with an outer and inner flanging device. - 4 -
  • the centering inserts facilitate a delayed delivery of the on-board unit. This can influence the final shape of the workpiece. In addition, distortion or dimensional errors can be compensated.
  • the board unit can have one or more movable and driven clamps which can be actuated separately from the board tools. It is advantageous here if the tensioners are arranged behind the flange heads and overlap them. This allows the flanged heads to rotate under the clamps to change the tool, whereby the workpiece (s) can remain clamped when the tool change is delayed.
  • the tensioners assigned to the bordel units can be an external tensioning device, e.g. replace a vertical or swiveling stenter. Alternatively, you can add it.
  • the on-board unit according to the invention can work with different clamping devices.
  • Of particular advantage here is the use of leading pressing and clamping elements, which allow a predeterminable clamping sequence of arbitrarily selectable points of the workpiece or parts when the clamping device is delivered.
  • These pressing and clamping elements are deformable or capable of evasion so that their leading function can be canceled at the end of the clamping movement, so that a uniform clamping of the work piece or parts takes place at all the intended locations.
  • Figure 1 a side view of a
  • FIG. 2 an end view of the bunching device according to arrow II of FIG. 1,
  • FIG. 3 a plan view of the bunching device according to arrow III of FIG. 1,
  • Figure 7 is an enlarged side view of the
  • Figure 8 a variant of the Bordelantrieb for a
  • Figure 9 a side view of a
  • Figure 10 a variant of Figure 1 with
  • Figure 11 is a perspective view of the brothel heads and bristle tools on
  • Figure 12 a plan view of the arrangement of
  • Figure 13 an enlarged side view of the flanging tools with integrated
  • Figure 16 is an enlarged side view of the
  • Figure 17 is an enlarged front view of the centering insert of Figure 14 according to
  • FIG. 18 a section through the centering insert from FIG. 17 according to section line XVIII-XVIII,
  • Figure 19 an enlarged side view of a
  • Figure 20 and 21 a construction variant of a leading
  • FIG. 1 to 3 show an overview
  • Flaring device (1) This consists of a machine frame (2) on which a plurality of outer flanging devices (6) and one or more inner flanging devices (7) are arranged.
  • a swiveling clamping device (3) with a clamping frame (69) is also arranged on the machine frame (2). Also located on the machine frame (2) - 7 -
  • the bunching device (1) is provided for processing one or more workpieces (9), in which prepared bunching flanges (63) (see FIG. 16) are first pre-bound and then finished.
  • the workpieces (9) can be any parts.
  • the bunching device (1) is used for processing vehicle body parts, in particular doors.
  • Workpieces (9) can have one or more openings (10). These openings can e.g. Window openings or the like.
  • the workpieces (9) can be pre-bunched and finished in one station.
  • the boarding device (1) allows inside and outside boarding to be carried out within the same station.
  • the inboard and outboard can be done simultaneously or with a time delay.
  • the inboard takes place in the area of the openings (10), in particular window cutouts.
  • the workpieces (9) are fed in the correct position by a suitable transport device.
  • the supply takes place via a multi-axis industrial robot, which also removes the workpieces (9) after being on board.
  • the stitching frame (2) has a brothel bed (5) with suitable supports for receiving one or more workpieces (9).
  • the brothel bed (5) can also have one or more positioning or centering pins for precise positioning of the workpiece (s) (9).
  • the workpieces (9) are printed on the brothel bed (5) by the clamping frame (69) described in more detail below and are held in the desired position.
  • the Clamping frame (69) can have a clamping contour (70) which is adapted to the shape of the workpieces (9) on the underside and, if appropriate, one or more pressure and clamping elements (71).
  • One or more centering pins (41) or other positioning aids can also be located on the tensioning device (3).
  • the lifter (8) is arranged obliquely and essentially parallel to the inner flanging device (7) described in more detail below. It is located inside and essentially below the machine frame (2) or brothel bed (5). It is used to hold and position the workpieces (9). Due to the pivotable clamping frame (69), its open position results in a wide open side and upward
  • Access opening (44) through which the delivery device or the aforementioned industrial robot delivers the workpieces (9) and picks them up again.
  • the lifter (8) is in an extended position (not shown) for feeding the workpieces (9).
  • the lifter (8) has several suitable receptacles for receiving and storing the workpieces (9).
  • Centering pins (42) or other positioning elements, e.g. are formed as an exact centering of the supplied workpieces (9) on the lifter (8).
  • the delivery device or the industrial robot places the workpiece (s) (9) on the extended lifter (8) in a positionally accurate and precisely centered position.
  • the lifter (8) then moves back and positions the workpiece (s) (9) on the brothel bed (5).
  • the lifter (8) can form part of the brothel bed (5) with its receptacles and preferably remains connected to the workpiece (s) when it is on board.
  • the workpieces (9) are thus precisely in the - 9 -
  • Flanging device (1) held and can be edited in the manner described below. After the flanging, the lifter (8) moves upwards again at an angle and prepares the workpieces (9) for collection by the delivery device.
  • the inner flanging device (7) has flaring tools (16, 17) which can be extended and retracted, so that the workpieces (9) can be placed with the opening (10) over the inner flanging device (7) onto the flanging bed (5).
  • External flanging device (6) can be moved back into a rest position and in this position clears the way for the lifter (8) and the workpieces (9) for delivery and collection.
  • Inner flanging device (7) can be positioned and aligned independently of one another relative to the workpiece (s) (9) and can be actuated separately. For this purpose, they each have several crimping units that can be operated separately
  • the inner flanging device (7) has hydraulic drives for retracting and extending the flanging tools (16, 17) and for the flanging stroke. It is preferably designed in accordance with DE-U-296 12 192.
  • the outer flanging device (6) is shown in more detail in FIGS. 4 to 7. It consists of one or more flanging units (11) which are preferably suspended on the machine frame (2) or on the flanging bed (5) and which together with their flanging tools (16, 17) encompass the outer contour of the workpieces (9) to be flanged.
  • the flanging units (11) each have a flanging head
  • the crimping head (12) carries the crimping tools (16, 17). These are, for example, flaring steels for pre-flanging and finishing flanging. - 10 -
  • the brothel tools (16, 17) generally have the same length as the bristle heads (12). In a variation, it is also possible that the lengths differ and subdivisions arise, for example by a brothel head (12) has an excessively long length and carries two or more shorter preliminary and finished bristle steels (16, 17) arranged axially one behind the other. Figure 11 shows this arrangement.
  • the flanging tools (16, 17) are interchangeably attached to suitable recessed receptacles of the flanging head (12) by means of suitable inserts.
  • the receptacles are dimensioned so that they can hold different insert and tool sizes.
  • the preliminary and finished border steel (16, 17) are located at different points on the border head (12).
  • the brothel head (12) is independently adjustable compared to the brothel drive (14) described below. He moves the flanging tools (16, 17) into the respective working position by moving his head.
  • Figure 4 shows the brothel head (12) in the pre-flanging position.
  • FIG. 5 shows the finished board position and FIG. 6 the rest position, in which the entire board unit (11) is pivoted away from the machine frame (2).
  • the brothel head (12) can be moved in different ways.
  • the brothel head (12) is designed as a rotating roller which is pivotably mounted on end bearings (23) about an essentially horizontal axis.
  • the brothel head (12) or the rotating roller can also have a longer length and can be divided into several brothel head sections (13) which are driven together.
  • the bobble head sections (13) are then rotatably supported at the internal contact point (s) via intermediate bearings (22) - 11 -
  • the crimping head (12) or the individual crimping head section (13) is moved by a swivel drive (18).
  • the pre-finished and finished border steels (16, 17) are brought into the working position by means of the rotary movement. They are arranged close to one another at corners on the crimping head (12) and are at an angle of preferably approximately 90 ° to 120 ° to one another.
  • the flanging head (12) executes a back and forth rotary movement with a corresponding angle of rotation.
  • the swivel drive (18) consists of a suitable drive element, e.g. a pneumatic cylinder and a suitable motion transmitter, e.g. a crank mechanism (19).
  • the crank mechanism (19) is connected via an arm to the piston rod of the cylinder, which is arranged essentially vertically.
  • the other crank arm is connected to the crimping head (12) via a link (20).
  • the crank arm acts on a sliding block, which is held back and forth in a suitable sliding guide on the flanging head (12).
  • the angular position of the crank arms is between approximately 90 ° and 140 ° and is preferably selected so that the crank arm leading to the crimping head (12) in the pre-crimping position shown in FIG. 4 is essentially perpendicular to the link guide (20) and the necessary ones when the cylinder is retracted Holding forces for the flare stroke.
  • the crank arm leading to the flanging head (12) with its bearing point for the link (20) is located between the finished flanging steel (17) and the pivot axis (15).
  • the crank arm assumes a relatively flat and slightly inclined upward position. He is essentially back there - 12 -
  • crank mechanism (19) which also represent the working positions of the flanging tools (16, 17), are limited and defined via swivel stops (21).
  • the cylinder (18) is only extended and retracted.
  • adjustable stop screws on the crank arms which interact with relatively fixed stop heads.
  • Bristle stroke stops (37) are available. These are arranged on different planes perpendicular to the bearing axis of the crank mechanism (19) and offset on the circumference by the pivoting angle of the crank mechanism (19). In each case one of the two bristle stroke stops (37) points vertically downwards in the two working positions shown in FIGS. 4 and 5 and interacts with adjustable stops that are relatively stationary.
  • the preliminary and finished flare strokes can be set independently of one another and limited by stops using stop screws (65) or the like.
  • the brothel head (12) is fastened and stored together with the swivel drive (18) on a bracket (25).
  • the console (25) is in turn supported by a console guide (26) on a swivel arm (24) so that it can move slowly.
  • the brothel lift is carried out by moving the bracket (25) along the swivel arm (24).
  • the console (25) forms together with the swivel arm (24) and a Bordelzyl (30) the Bordelantrieb (14).
  • the flange drive (14) is separate from the swivel drive (18) of the flange head (12).
  • Figures 4 to 7 illustrate the one embodiment of the flange drive (14).
  • Figure 8 shows only one variant.
  • the brothel drive (14) generates the feed movement as well as the bridle movement, independently of one another and separately adjustable or with a separate one - 13 -
  • the brothel tools (16, 17) are brought into a defined and statically determined starting or working position from which the bristle lift takes place. For this purpose, all are monitored and controlled by means of a corresponding path or time
  • Bordelem institution (11) successively or simultaneously brought m the starting or working position, where they can wait for each other. From here you can then carry out the bridle lift with any time sequence you choose, in particular together and at the same time.
  • the swivel arm (24) is rotatably supported via a bearing (29) on the machine frame (2) or a frame attachment.
  • the connection point of the bearing (29) to the machine frame (2) can be adjusted and fixed in multiple axes. It is preferably used for remote adjustment of the board unit (11) relative to the board bed (5) and the workpiece (9).
  • the swivel arm (24) is employed in the working positions shown in Figures 4 and 5. In the rest position shown in FIG. 6, it is pivoted backwards.
  • the arrangement can be such that, according to FIGS. 4 and 5, the brothel lift takes place with an essentially vertical movement component.
  • FIG. 1 shows a variant in which the board units (11) are inclined in the working position and the board lift has a correspondingly oblique direction of movement.
  • the bristle stroke is preferably directed obliquely outwards.
  • the spring (27) is also biased.
  • the spring (27) is preferably designed as a compression spring and counteracts the Bordelzylmder (30).
  • the spring (27) is aligned parallel to the sled-shaped console guide (26).
  • the adjusting device (28) consists e.g. from a set screw with clamping.
  • the upper position and the starting position of the boarding tools (16, 17) and the boarding head (12) are set via the adjusting device (28).
  • the previously described brothel stroke stops (37) define the lower end of the brothel limit or limit the brothel lift.
  • the set screws (65) for the bristle stroke stop are arranged on the swivel arm (24).
  • the angular position of the tools (16, 17) on the head (12) is coordinated with the rotary movement of the swivel drive (18) or the shape of the crank drive (19) such that the
  • Bordel tools (16, 17) are essentially at the same height and position in the working position.
  • the bristle stroke is carried out by the Bordelzylmder (30), which pulls the bracket (25) down against the force of the spring (27) on the swivel arm (24).
  • the Bordelzylmder (30) attacks via a toggle lever (31).
  • the Bordelzylmder (30) attacks directly.
  • the bridle stroke is preferably the same direction when pre-flanging and finishing flanging. This applies to the outer flanging device (6) and the inner flanging device (7).
  • the stroke direction is aligned vertically or at an angle. It usually targets m towards the brothel bed (5) and downwards in the exemplary embodiment shown. - 15 -
  • the piston rod engages via a connection (32) on the central bearing of the toggle lever (31).
  • One lever end is fixed in place on the machine frame (2) via a stationary eye (34).
  • the other swivel arm eye (33) is arranged on the swivel arm (24).
  • FIG. 6 shows the pivoted rest position of the board unit (11).
  • the Bor ⁇ elzylinder (30) is retracted and the toggle lever (31) bent accordingly.
  • the Bordelzylmder (30) extends, the toggle lever (31) being brought into the extended position shown in FIGS. 4 and 5.
  • the extension movement and the extended position are limited and defined by a swivel stop or lever stop (36).
  • the piston rod with the connection (32) moves against this stop (36).
  • the Bordelemneit (11) is initially pivoted over the stretching movement.
  • the cylinder force required is less than the counterforce of the spring (27). As a result, the cylinder force deflects the pivoting movement.
  • the force of the spring (27) is approximately 10% of the maximum
  • the spring (27) has a clamping force of 1 t and the Bordelzylmder (30) has a force of 10 t.
  • the spring raft is also greater than the resistance to movement of the swivel arm (24), for example inertia, frictional forces etc.
  • the bracket (25) takes the cylinder housing, which is rotatably mounted via the cylinder bearing (35). This movement forms the brothel stroke, in which the spring (27) is compressed by the higher cylinder force.
  • the brothel lift is limited in the manner described above by the bristle lift stop (37).
  • Lever bearing (34) It is preferably in the vertical alignment above it. In the stop position, the toggle lever (31) preferably extends horizontally and essentially perpendicular to the connecting line between the bearings (29, 34). At the lever bearing (34) in
  • the toggle lever (31) is missing in the variant of FIG.
  • the Bordelzylmder (30) is instead rotatably mounted with its connection (32), preferably the piston rod connection, on the machine frame (2).
  • the connection (32) has the same effect as the bearing (34) and supports the reaction forces and the reaction moments from the border on the machine frame (2) ao.
  • the Bordelzylmder (30) is connected to the console (25) as in the first exemplary embodiment. - 17 -
  • the bearing (29) of the swivel arm (24) is seen in the horizontal between the cylinder connection (32) and the cylinder bearing (35) or the console guide (26).
  • FIG. 8 shows three operating positions of the on-board unit (11). In the rest position shown on the left, the Bordelzylmder (30) is aligned substantially vertically and the flanging unit (11) is pivoted down similar to Figure 6.
  • the middle representation of FIG. 8 shows the brothel starting position and the right hand representation shows the brothel or working position of the brothel unit (11) at the end of the brothel lift. In both positions
  • the horizontal force component stabilizes the swung-in brothel or working position and is supported by the console guide (26).
  • the pivoting movement of the swivel arm (24) is via a
  • Swivel stop (36) limited to the machine frame (2).
  • the arrangement of the bearings and the kinematics of the on-board unit (11) are selected so that a flaring reaction moment arises during the flanging, which rotates the on-board head (12) to the workpiece (9).
  • FIGS. 11 and 12 illustrate the perspective view and plan view
  • the figures also show the design and arrangement of the brothels (16, 17).
  • the brothel heads (12) together in the working position form an essentially closed brothel contour that runs around the outside of the workpiece (9).
  • the brothel units (11) in the rest position shown in FIG. 6 are pivoted back. In this position, the flange heads (12) can be rotated via the swivel drive (18).
  • the intermediate bearings (22) provide the necessary support and prevent deflections and other deformations.
  • FIG. 9 illustrates these clamps (4) and their arrangement schematically and by way of example.
  • one or more such tensioners (4) are assigned to the board units (11) of the outer flanging device (6). They overlap the brothel heads (12) and are supported on the swivel arm (24) in a suitable manner. They are preferably designed as swivel clamps and have a clamp bearing (46) and a suitable clamp drive (45), for example a cylinder, which is supported on the swivel arm (24) and on - 19 -
  • Tensioner (4) engages with the pivot bearing (49) via a boom.
  • one or more similar tensioners (4) can be arranged on the tensioning frame (69) and / or on its pivoting frame (48).
  • the tensioner bearing (46) and the tensioner drive (45) are also located on the tensioning frame (69) and / or on the swivel frame (48).
  • the clamps (4) are designed such that they overlap the brothel heads (12) at a distance and print on the workpieces (9) in the vicinity of the brothel points.
  • the tensioners (4) on the tensioning frame (69) and / or on the swivel frame (48) are shaped in such a way that they give the board units (11) enough space to swivel backward in the rest position and for rotating the board head (12 ) give.
  • the workpieces (9) remain fixed in their position and pressing position.
  • tensioners (4) with tensioner drive (45) and / or tensioner bearings (46) are arranged on the tensioning frame (69) and / or on the swivel frame (48) in the interior of the outer flanging device (6), the requirements for FIG. 9 must be met - 20 -
  • clamps (4) generally neither overlap the outer flanging device (6) nor act as a hindrance when the workpieces (9) are fed in and out.
  • FIGS 1 to 3, 9, 10 and 19 to 21 illustrate the clamping device (3), which in particular can have at least one movable clamping frame (69) and / or em or several individual clamps (4).
  • the tenter frame (69) is pivotally mounted on the machine frame (2) by means of a frame-like swivel device (48) by means of swivel frame bearings (38).
  • the swivel frame drive (39) is preferably designed as a swiveling cylinder which is rotatably mounted with its housing on a support column (40) of the machine frame (2).
  • the piston rod also rotatably engages the swivel frame (48).
  • the tensioning frame (69) can be used in any other suitable manner, e.g. by a vertical translational movement with a corresponding drive.
  • the clamping frame (69) On the underside, the clamping frame (69) carries the clamping contour (70) and one or more suitable pressing and clamping elements (71) for targeted pressing of the workpieces (9) against the border bed (5).
  • Such pressing and tensioning elements (71) can also be arranged on the tensioners (4).
  • Various centering pins (41) and the like, other positioning elements can also be present on the clamping frame (69) and / or on the swivel frame (48) in the manner described at the beginning.
  • the pressing and clamping elements can be adapted to the shape of the workpieces (9) and can be rigid or movable or deformable.
  • pressing and tensioning elements (71) can lead to other pressing and tensioning elements (71).
  • the leading pressing and tensioning elements (71) are - 21 -
  • pressing and clamping elements (71) longer than other pressing and clamping elements (71) or are positioned at places where pressing and clamping elements (71) come into clamping contact with the workpiece (s) (9).
  • the leading pressing and tensioning elements (71) thereby consciously press the workpiece or parts (9) first at certain selectable locations. This results in a specific clamping sequence, which counteracts undesired deformations and / or displacements of the workpiece (s) (9).
  • the leading pressing and tensioning elements (71) are movable, e.g. resiliently or elastically deformable, and give way in the course of the infeed in order to enable a uniform contact of all pressing and clamping elements (71) at the end of the clamping process.
  • the leading pressing and tensioning elements (71) are movable, e.g. resiliently or elastically deformable, and give way in the course of the infeed in order to enable a uniform contact of all pressing and clamping elements (71) at the end of the clamping process.
  • FIGS. 19 to 21 show such an enlarged side view of such pressing and clamping elements (71) on the underside of the clamping frame (69) in the clamping position on the workpiece (9). They are modeled to match the workpiece contour and have one or more contact or pressure surfaces for the defined holding and clamping of the workpiece (s) (9).
  • the pressing and clamping element (71) can be, for example, the lower part of the clamping contour (70). They are either an integral or attached component of the clamping contour (70).
  • the pressing and clamping elements (71) can also be arranged on hold-down devices (67) which are located on the clamping frame (69) or on the clamping contour (70).
  • the hold-down devices (67) can be designed as interchangeable inserts and can be changed to adapt to other workpieces (9). For this purpose, for example, they are detachably attached to the underside m of a recess in the clamping contour (70) by means of a screw or the like.
  • the hold-down devices (67) can also be seated at the ends of the tensioner (4) and / or on other tensioning elements of the tensioning device (3).
  • the hold-down devices (67) can be in one or more parts.
  • the pressing and tensioning element (71) can be designed as movable and possibly leading pressure pieces (68) which are fixed rigidly or releasably to the hold-down devices (67) or at other points on the tensioning device (3).
  • the pressure pieces (68) can e.g. 19 consist of plastic or another elastic material. They can also be spring-loaded (72) according to FIGS. 20 and 21. In addition to the choice of material, the elasticity or spring action can also be influenced by the shape.
  • the pressure pieces (68) have e.g. em or several material weakening through recesses or openings that specifically allow deformations in em or several directions.
  • the elastic or resilient pressure pieces (68) give contact with the work pieces (9) over the feed path of the clamping device (3) against the force of the spring (72) or
  • the elasticity or spring force of the pressure pieces (68) can be different. As a result, the pressure pieces (68) can act on the work piece (s) (9) with different forces or pressures.
  • the DrucKstucke (68) are particularly suitable for use as leading press and - 23 -
  • Variations in their effect on the workpiece (s) (9) can be specifically adjusted according to location or time and / or force or pressure.
  • the elasticity or mobility of the pressing and tensioning elements can also be present without a leading function.
  • the pressure pieces (68) can also be made of a hard and solid material, e.g. Steel or other metal.
  • the pressure pieces (68) are in turn suitably adapted to the shape of the workpiece (9).
  • Figure 19 shows on the hold-down device (67) two pressing and tensioning elements (71), of which the rear one is rigid and the front one is designed as a movable and preferably leading pressure piece (68).
  • the pressing and tensioning elements (71) can be fluid, e.g. have pneumatic or hydraulic preload.
  • they can be used as inflatable tube elements or the like. be trained. They can also be designed in several parts and can be moved (e.g. telescopic) or can be moved.
  • the swivel frame (48) has multi-axis adjustable swivel frame bearings (38).
  • the swivel frame bearings (38) are designed as spherical or spherical bearings with three translatory adjustment axes.
  • the swivel frame (48) and thus the clamping frame (69) are aligned with the brothel bed (5) and the workpieces (9).
  • the adjustment is made by adjusting the clamping frame (69) with the swivel frame (48) as a whole.
  • the receptacles and centering pins (41) and the other positioning aids are individually on the swivel frame (48) and / or on the clamping frame (69) - 24 -
  • the tenter frame (69) itself can also consist of several parts depending on the application.
  • the swivel frame bearings (38) are located near the table surface of the machine frame (2).
  • the swivel frame (48) is bent accordingly.
  • the swivel frame bearings (38) are located in or close to a workpiece plane (43) which is formed and defined by the centering openings on the workpieces (9). With such an alignment, the centering pins (41) emerge essentially perpendicularly to the centering openings on the workpieces (9) and essentially develop a centering effect in the workpiece plane (43).
  • An arrangement of the swivel frame bearings (38) near the table also allows a large access opening (44).
  • the swivel frame (48) and / or tensioning frame (69) can preferably have two to four or more height-adjustable supports (64), which can preferably be arranged on the periphery or in the border area (5). These conditions (64) enable the tensioning force of the tensioning device (3) to be supported on the
  • Mesh frame (2) and thus a specifically partially variable clamping effect on the workpiece (9) in order to allow or prevent tensioning and shape-compensating movements of the workpiece (9) before or during the flanging process depending on the application.
  • the swivel frame bearings (38) can be arranged at a distance above the machine table (2) via corresponding brackets or sockets. Depending on the design and arrangement of the workpieces (9), such an arrangement may be necessary around the swivel frame - 25 -
  • the arcuate tensioning movement can also be replaced in whole or in part or in combination by straight-line guidance. Different shapes and positions of the workpieces (9) and arrangements of the flanging units (11) can thus be taken into account.
  • FIGS. 13 to 18 show in different representations a centering device for the workpiece (s) (9) in the flanging device (1).
  • one or more centering inserts (50, 51, 58, 59, 60) are preferably arranged on the flanging tools (16, 17).
  • such a centering insert (50) is arranged on the pre-flanging tool (16) and is preferably adjustably attached via one or more fitting plates (52) and a clamping element (62), preferably a screw connection.
  • the centering insert (50) is arranged obliquely with respect to the receptacle or the pre-flaring tool (16). Its inclined position corresponds to the pre-flanging angle (56) which the flanging flank (66) of the pre-flanging tool (16) assumes.
  • the adjustment option is given in the direction of the flanging slope.
  • the centering insert (50) is inserted frontally into a corresponding recess in the pre-flanging tool (16). In the manner described below, it protrudes a little way beyond the normal flanging tool contour (53) for centering purposes.
  • the centering inserts have preferably in each embodiment
  • FIG. 13 shows another variant of the centering insert (51) on the finished flanging tool (17). This is essentially parallel to the base area of the
  • the centering insert (51) only contains the tool contour located below the flange nose or flange edge (66).
  • Figure 13 also shows a third variant of a centering insert (58) which e.g. is arranged on the preliminary flanging steel (16) of the inner flanging device (7).
  • the centering insert (58) which is also adjustable, is arranged here above the front flange nose.
  • the centering sets (50, 51) act on the workpieces (9) in the region of the flange flanges (63) and center the outer contour of the workpieces (9).
  • the centering insert (58) acts on another part of the inner contour of the workpiece (9), which may remains rigid and is not flared.
  • the workpiece (9) is shown 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.
  • the centering insert (58) acts on this.
  • the window guide frame (55) and the associated inner part of the workpiece (9) can be held rigidly or elastically on the border bed by hold-down devices (67) in the clamping frame (69) and preferably by cooperation with the centering sets (58) in the inner border steels (16, 17) (5) can be kept (cf. - 27 -
  • FIG. 14 shows a variant of FIG. 13, in which the centering inserts (50, 51) with the appropriate shape and design are also arranged on the pre-finishing and finishing flanging tools (16, 17) of the inner flanging device (7).
  • the centering insert (50) on the pre-flanging tool (16) has an inclined position and is aligned in accordance with the pre-flanging angle (56). This inclined position enables the centering insert (50) to be placed particularly precisely and adjusted in the direction of the flanging flank (66).
  • the support and centering function is particularly good and the adjustment is only required one-dimensionally.
  • FIG. 15 shows a further variant with centering inserts (59, 60), which here have a larger shape than the previous exemplary embodiments and are also fastened by means of a plurality of clamping elements (62). They cover almost the entire cross-sectional contour of the flaring tools
  • the centering insert (60) on the finished flanging tool (17) also includes the flank flank (66) in deviation from FIGS. 13 and 14.
  • the centering sets (59, 60) are arranged here on the inner flanging device (7). In a corresponding manner, they can also be attached to the crimping heads (12) of the outer crimping device (6).
  • FIG. 16 illustrates the form and function of the centering sets (50, 51, 58, 59, 60) in an enlarged representation.
  • the flanging tools (16, 17) normally have a certain lateral distance to the workpiece (9.55) in their initial position before the start of the flanging stroke.
  • the centering sets (50, 51, 59, 60), with their centering contour (54) located below the flank flank (66), can protrude a piece above the normal steel stock contour (53) mentioned above and - 28 -
  • Figure 16 also illustrates the position of the flange flange (63) during pre-flanging and finished flanging.
  • the centering sets (50, 51, 58, 59, 60) are arranged in places on the flanging tools (16, 17).
  • the workpiece (9.55) is thereby guided and centered at several points on the outer and / or inner circumference.
  • the centering sets (50, 51, 58, 59, 60) enable the workpiece shape to be influenced during the delivery of the flanging tools (16, 17) for the inboard and outboard and provide the necessary centering and
  • Holding functions which can be particularly important when changing the pre- and finished flanging tools (16, 17).
  • the outer flanging device (6) When the outer flanging device (6) has a function and carries out the pre-flanging, the workpiece (9, 55) is braced against the centering forces (50, 58, 59) of the pre-flanging tools (16) of the inner flanging device (7) in relation to the flanging forces acting on the outer circumference .
  • they have at least moved into a standby position in which the Bordelfianken (66) are located at a short distance above the Bordel flanges (63).
  • the centering contour (54) which preferably protrudes below the flank flanks (66), then supports the workpiece (9, 55) on the inner circumference in the manner described.
  • the projecting centering contour (54) can bring about a shape correction of the workpiece (9).
  • the inner pre-flanging can take place.
  • outer and inner pre-borders can run simultaneously or in a different order.
  • inside pre-flanging is equally - 29 -
  • External flanging device (6) The counter hold is done in the pre-flanging position of the outer flanging device (6) also via the already angled flanged flanges (63). Here, a flat contact of the flange flange (63) with the flange flank (66) and / or the centering contour (54) takes place.
  • the finished flanging tools (17) of the outer and inner flanging device (6, 7) can then be brought into position simultaneously or in succession. These now trim the workpiece (9.55) inside and outside via their centering sets (51.60).
  • the protruding centering contour (54) bridges the free space created when the flange flange (63) is pre-flared and rolled up. Finishing flanging can then be done inside or outside one after the other or simultaneously.
  • FIG. 17 shows a detailed representation of the centering device according to arrow XVII of FIG. 14. It can be seen here how, for example, a centering insert (51) is adapted to the workpiece contour (57) and fills the surface up to the flank flank (66).
  • Figure 18 shows a section along section line XVIII-XVIII of Figure 17. From this illustration, the example of a centering set (51) shows the protrusion of the centering contour (54) compared to the normal stock steel contour (53). The assignment and shape of the recess (61) in the brothel bed (5) can also be seen. Figure 18 also illustrates the limited width of the centering sets (50, 51, 58, 59, 60). - 30 -
  • the centering contour (54) remains flush with that on the flanging steel (16, 17), if necessary, continuously existing steel stock contour (53), which can also have a support and / or centering function.
  • the crimping heads (12) can be designed, stored and driven differently. Instead of a crank mechanism, an arbitrary other force and motion transmitter can also be used.
  • the drive for the crimping head (12) can also include an additional drive element instead of the cylinder.
  • the flanging heads (12) can be combined with a flanging drive (14) of any other design.
  • a flare drive (14) in addition to fluid, i.e. hydraulic or pneumatic drives, also electric drives with suitable motors, gears and spindles. Separate drives can also be used for the delivery of the flanging unit and for the flanging stroke.
  • the various units can be combined, expanded or reduced as required. For example, there is no need for the lifters (8) when the workpiece (9) is fed directly onto the crimping bed (5).
  • the flanging device (1) can have only one outer flanging device (6).
  • Centering inserts (50, 51, 58, 59, 60) can also be arranged only on the outer flanging units (11).
  • the tensioning device (3) and the other machine parts of the flanging device (1) are also variable.
  • the tensioning device (3) can be linearly movable.
  • the clamps (4) can also be stationary on the machine frame instead of on the movable flanging units (11) - 31 - (2).
  • Flare tool Flare tool, flare steel, pre-flare 17 Flare tool, flare steel, finish flare

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)

Abstract

L'invention concerne un dispositif de sertissage (1) comportant une ou plusieurs unités de sertissage (11) qui présentent au moins deux outils de sertissage différents (16, 17) pour effectuer un sertissage préalable et un sertissage final. Les unités de sertissage (11) présentent un élément de commande de sertissage (14) et au moins une tête de sertissage (12) reliée à l'élément de commande de sertissage (14) et pouvant être déplacée de façon indépendante. Les outils de sertissage (16) sont placés de façon commune sur la tête de sertissage (12). Un mouvement de cette dernière permet de placer lesdits outils (16, 17) en position de travail ou de les changer. De préférence la tête de sertissage (12) se présente sous la forme d'un cylindre rotatif et comporte un organe d'entraînement de pivotement (18) avec un mécanisme à manivelle (19).
PCT/EP1999/000399 1998-01-24 1999-01-22 Dispositif de sertissage avec tete de sertissage WO1999037418A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE29801148.4 1998-01-24
DE29801149.2 1998-01-24
DE29801148U DE29801148U1 (de) 1998-01-24 1998-01-24 Bördeleinrichtung mit einem Bördelantrieb
DE29801149U DE29801149U1 (de) 1998-01-24 1998-01-24 Bördeleinrichtung mit Bördelkopf

Publications (1)

Publication Number Publication Date
WO1999037418A1 true WO1999037418A1 (fr) 1999-07-29

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Application Number Title Priority Date Filing Date
PCT/EP1999/000399 WO1999037418A1 (fr) 1998-01-24 1999-01-22 Dispositif de sertissage avec tete de sertissage

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WO (1) WO1999037418A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001068285A1 (fr) * 2000-03-14 2001-09-20 Kuka Schweissanlagen Gmbh Unite a border
DE202009005111U1 (de) 2009-08-05 2010-12-30 Kuka Systems Gmbh Falzeinrichtung
WO2011113928A1 (fr) 2010-03-19 2011-09-22 Kuka Systems Gmbh Dispositif de pliage
CN108943669A (zh) * 2018-08-27 2018-12-07 广东金兴机械股份有限公司 一种塑料杯卷边设备
CN109261774A (zh) * 2018-12-13 2019-01-25 浙江理工大学 一种薄板自锁折弯卷边装置
CN109396234A (zh) * 2018-11-01 2019-03-01 佛山市南海九洲普惠风机有限公司 一种风筒翻边卷圆机
CN116532541A (zh) * 2023-07-06 2023-08-04 四川岷河管道建设工程有限公司 一种不锈钢管道翻边设备

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GB929840A (en) * 1960-03-11 1963-06-26 British Federal Welder Clinching tools and units
GB958673A (en) * 1960-08-31 1964-05-21 British Federal Welder Clinching apparatus
GB1080471A (en) * 1963-10-17 1967-08-23 Ford Motor Co Machines for bending over the edges of metal sheets
US5005398A (en) * 1990-06-01 1991-04-09 Craftmation, Inc. Hemming machine
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
DE4330683A1 (de) * 1993-09-10 1995-03-16 Audi Ag Falzvorrichtung
EP0779117A1 (fr) * 1995-12-11 1997-06-18 B.E.M.A. S.A. Dipositif de sertissage de panneaux en tÔle
DE19747292C1 (de) * 1997-10-25 1999-01-14 Thyssen Industrie Vorrichtung zum Falzen von Blechen, insbesondere Karosserieblechen im Automobilbau

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GB929840A (en) * 1960-03-11 1963-06-26 British Federal Welder Clinching tools and units
GB958673A (en) * 1960-08-31 1964-05-21 British Federal Welder Clinching apparatus
GB1080471A (en) * 1963-10-17 1967-08-23 Ford Motor Co Machines for bending over the edges of metal sheets
US5005398A (en) * 1990-06-01 1991-04-09 Craftmation, Inc. Hemming machine
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
DE4330683A1 (de) * 1993-09-10 1995-03-16 Audi Ag Falzvorrichtung
EP0779117A1 (fr) * 1995-12-11 1997-06-18 B.E.M.A. S.A. Dipositif de sertissage de panneaux en tÔle
DE19747292C1 (de) * 1997-10-25 1999-01-14 Thyssen Industrie Vorrichtung zum Falzen von Blechen, insbesondere Karosserieblechen im Automobilbau

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PATENT ABSTRACTS OF JAPAN vol. 095, no. 001 28 February 1995 (1995-02-28) *

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001068285A1 (fr) * 2000-03-14 2001-09-20 Kuka Schweissanlagen Gmbh Unite a border
DE202009005111U1 (de) 2009-08-05 2010-12-30 Kuka Systems Gmbh Falzeinrichtung
WO2011113928A1 (fr) 2010-03-19 2011-09-22 Kuka Systems Gmbh Dispositif de pliage
US9393608B2 (en) 2010-03-19 2016-07-19 Kuka Systems Gmbh Folding device
CN108943669A (zh) * 2018-08-27 2018-12-07 广东金兴机械股份有限公司 一种塑料杯卷边设备
CN108943669B (zh) * 2018-08-27 2024-05-03 广东金兴机械股份有限公司 一种塑料杯卷边设备
CN109396234A (zh) * 2018-11-01 2019-03-01 佛山市南海九洲普惠风机有限公司 一种风筒翻边卷圆机
CN109396234B (zh) * 2018-11-01 2023-09-01 佛山市南海九洲普惠风机有限公司 一种风筒翻边卷圆机
CN109261774A (zh) * 2018-12-13 2019-01-25 浙江理工大学 一种薄板自锁折弯卷边装置
CN116532541A (zh) * 2023-07-06 2023-08-04 四川岷河管道建设工程有限公司 一种不锈钢管道翻边设备
CN116532541B (zh) * 2023-07-06 2023-08-29 四川岷河管道建设工程有限公司 一种不锈钢管道翻边设备

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