EP0671228A2 - Installation de transport pour pièces à usiner dans une presse - Google Patents

Installation de transport pour pièces à usiner dans une presse Download PDF

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Publication number
EP0671228A2
EP0671228A2 EP95102496A EP95102496A EP0671228A2 EP 0671228 A2 EP0671228 A2 EP 0671228A2 EP 95102496 A EP95102496 A EP 95102496A EP 95102496 A EP95102496 A EP 95102496A EP 0671228 A2 EP0671228 A2 EP 0671228A2
Authority
EP
European Patent Office
Prior art keywords
gripper
press
support
drive
movement
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP95102496A
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German (de)
English (en)
Other versions
EP0671228A3 (fr
EP0671228B1 (fr
Inventor
Erich Harsch
Rainer Reichenbach
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.)
Mueller Weingarten AG
Original Assignee
Maschinenfabrik Mueller Weingarten AG
Mueller Weingarten AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Maschinenfabrik Mueller Weingarten AG, Mueller Weingarten AG filed Critical Maschinenfabrik Mueller Weingarten AG
Publication of EP0671228A2 publication Critical patent/EP0671228A2/fr
Publication of EP0671228A3 publication Critical patent/EP0671228A3/xx
Application granted granted Critical
Publication of EP0671228B1 publication Critical patent/EP0671228B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/02—Advancing work in relation to the stroke of the die or tool
    • B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
    • B21D43/05—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work specially adapted for multi-stage presses

Definitions

  • the invention relates to a transport device for transporting workpieces through processing stations, in particular a press, according to the preamble of claim 1.
  • the crossbeams must be positioned in an intermediate position outside the tool space during the machining process so as not to interfere with the machining process (see DE 38 24 058 C1).
  • the support or gripper rails carry out an additional transverse movement in addition to the longitudinal and lifting movement and grip the workpiece by means of gripper elements in order to transport it from one processing stage to the next.
  • a basic illustration of such a three-dimensional drive is given in EP 0 210 745 A2, in particular FIG. 4.
  • each gripper rail is articulated via a push rod on a transversely displaceable carriage, the carriage in turn being displaceable transversely to the longitudinal axis of the press in order to adapt to the respective workpiece size in a fixed starting position.
  • This transverse displacement therefore serves as a setup axis for setting the workpiece size.
  • the respective closing / opening movement of the gripper rail then takes place as a lateral pivoting movement or transverse movement on a carriage which is fixed in the transverse direction via corresponding ball joints.
  • the transversely displaceable slides themselves are attached to a crossbar, which is the usual one Drive lever is connected to the gear housing of a central drive of the press.
  • This gear housing is stationary in the front area or entrance area of the step press and contains the usual cam disks that are driven by rollers to carry out the advancing, tensioning and lifting movement of the gripper rails.
  • the gear unit can be driven from the press head itself or by separate drives.
  • the transverse movement of the gripper rail itself as a production axis takes place in this known system in a conventional manner by a lock box arranged below the gripper rails, which is also driven by the central drive.
  • the gripper transfer is preferably used for transporting rigid sheet metal parts which can be gripped from the outside, while transfer with suction bars is particularly suitable for transporting large-area, unstable sheet metal parts.
  • the gripper transfer has better tool freedom than the suction beam transfer and can execute a larger number of strokes with the same accelerations. For this reason, it is in itself uneconomical to transport sheet metal parts that can be transported with a gripper transfer with a transfer with suction bars.
  • step presses have so far been produced either as gripper transfer presses or suction beam transfer presses, whereby a changeover from one system to the other is not provided due to the completely different movement sequences.
  • the invention has for its object to provide a step press and in particular a large part step press (GT press) in which the parts can be transported both as a 3-axis transfer with grippers and as a 2-axis transfer with suction beam.
  • GT press large part step press
  • the invention is therefore based on the main idea that the press has structural measures that allow the press to be used both in the suction beam mode and in the gripper mode.
  • the transport device follows the basic idea of a completely flexible handling of the workpieces or parts to be transported by the transfer press, with respect to the longitudinal drive of the support or gripper rails, the drive either with central drive via push rods and cam mechanisms which can be switched over to the different movement sequences, or with programmable individual drives should.
  • the individual movement sequences can be changed so that a transfer can take place both with suction bars and with grippers.
  • Suitable means for fastening both cross beams or Suction bars for 2-axis operation and gripper elements for 3-axis operation can be provided.
  • An additional transverse transport unit is also used which, in addition to the transverse closing / opening movement, can also carry out the lifting movement for the support or gripper rail.
  • the lock box which is usually arranged below the support or gripper rails for carrying out the lifting and closing movement is consequently replaced by a transport system which is arranged above the support or gripper rails and can carry out the corresponding movements if required.
  • a transport device for a transfer press or the like has become known from EP 0 384 188 B1, in which the support rails passing through the press can likewise be raised by means of a lifting device arranged above the support rails.
  • this arrangement relates exclusively to a 2-axis drive with cross-members arranged between the support rails, so that the lifting device is used exclusively to carry out the vertical movement of the gripper rails.
  • the longitudinal movement is still carried out by a central drive on the front.
  • the transport device therefore has the advantage that an extremely flexible arrangement is created which can be used both in the suction bar and in the gripper operation without any problems.
  • the additional cross transport units arranged above the support or gripper rails, each with an integrated lifting column, on which the respective support or gripper rail is suspended, so that the conventional lifting and closing movement can only be carried out by this, separately drivable cross transport unit.
  • the lifting and transverse movements can be carried out in isolation from one another by corresponding drives, the transverse movement in particular being designed as a production axis and / or as a set-up axis.
  • the support and gripper rails are mounted on the respective cross transport unit by means of an associated lifting column in a slide guide, so that the cross transport unit can be arranged stationary, preferably between the stands of a press, within an empty stage.
  • this drive can take place via a traction device arrangement, which preferably comprises a belt drive or the like.
  • a traction device arrangement there can also be a spline shaft with pinion and toothed rack for carrying out the lifting movement and as a spindle / nut drive for carrying out the transverse movement, the drives of the various drive elements being designed as high-precision programmable drives.
  • a belt drive for carrying out an independent lifting movement and transverse movement is given, for example, from the working principle in DE 32 33 428 C2.
  • the peculiarity of the present invention therefore lies in particular in the problem-free convertibility of the transport device for a 2-axis longitudinal transfer with suction bars and a 3-axis transfer with gripper elements.
  • the support or gripper rails are provided with special holding devices or holding flanges, which are alternatively used to hold cross members or suction beams or the like or can be equipped with gripper bars with corresponding gripper elements.
  • the receiving device for the crossbeams and / or the gripper elements on the support or gripper rails are mounted so as to be longitudinally displaceable in order to be able to carry out partial steps in a movement relative to the support or gripper rail, in particular in the case of 2-axis transfer to move the crossbars into a parking position between the tool stages.
  • this receiving device is particularly advantageous in that a pivoting movement about a horizontal transverse axis can also be carried out, so that the cross members and / or the gripper elements can be pivoted about their preferably horizontal longitudinal axis.
  • FIGS. 1 and 2 show five processing stages of a large-part step press (GT press) in side view or in longitudinal section, and in FIGS. 3, 4 the associated top views.
  • the step press has press tables 1 to 3 and sliding tables 4 arranged above it to 6 with lower tools 7 to 9 fastened thereon.
  • the upper tools 10 to 12 and the press rams 13 to 15 are located in the upper part of the step press.
  • the upper bars or head pieces 16 to 18 are connected to the press tables 1 to 3 by the press stands 19 to 22, between which also the press rams 13 to 15 are led.
  • the press rams 14, 15 are designed as so-called double rams, i. h: on each tappet 14, 15 there are two upper tools 11, 11 'and 12, 12', respectively, to which two associated lower tools 8, 8 'and 9, 9' are assigned.
  • two support or gripper rails 30, 31, which are arranged laterally in the area of the stands 19 to 22 and which are guided by a feed drive 32, run through the entire large-part step press , 33 are each driven via a push rod 34, 35.
  • the feed drive 32, 33 comprises a programmable drive with toothed segment 37.
  • a number of cam disks which can be switched over to the different movements and which are driven synchronously by the press drive in a known manner can also be provided.
  • the peculiarity of the invention is, inter alia, that the support or gripper rails 30, 31 can perform a 2-axis or 3-axis movement, so that different press systems are realized in a single press.
  • 1 shows a side view and FIG. 3 an associated top view of a 2-axis press system with a 2-axis movement of the support rails 30, 31 with cross members in the longitudinal direction (arrow 38) and in the vertical direction (arrow 56).
  • the exemplary embodiment according to FIG. 2 in side view and according to FIG. 4 in plan view shows a press system with a 3-axis movement system, in which the gripper rails 30, 31 with grippers have an additional transverse movement in relation to the 2-axis system, transverse to the longitudinal direction 38 of the press can perform to handle the workpieces.
  • the two support rails 30, 31 have crossbeams 39 to 46 connecting them, which are located in each processing stage or empty stage of the press system and on which so-called suction spiders 47 are attached to hold the workpiece.
  • the two longitudinal transfer rails 30, 31 have 47 gripper elements or gripper holders 48 to 54 on gripper bars instead of the crossbars 39 to 46 with suction spiders attached to them, as shown in FIG. 2 in side view and in FIG. 4 is shown in plan view.
  • the crossbar is missing, so that the gripper rails 30, 31 perform a 3-axis movement, ie in addition to the longitudinal and lifting movement of the gripper rails, a transverse movement to the longitudinal direction of the press is carried out (arrow 55) so that the gripper elements 48 to 54 can grip the workpiece, transport it and deposit it in the next tool stage.
  • the gripper elements Due to the closing or opening movement of the gripper elements in the transverse direction, they can always be removed laterally from the press chamber during the working stroke to be carried out.
  • FIGS. 5a to 5c show a first drive system for the support rails 30, 31 working in 2-axis operation, between which there is a cross-beam 39 to 46 with a suction spider 47 attached to it for receiving a workpiece 26.
  • the support rails 30, 31 consequently only carry out a longitudinal movement aligned in the longitudinal direction 38 of the press and a vertical lifting movement 56.
  • the support rails 30, 31 are connected via longitudinal guide carriages 57, 58 to a lifting column 59, 60 of an additional transverse transport unit 61, 62 in a first embodiment.
  • This transport unit 61, 62 is used in this case to carry out the lifting movement of the mounting rails 30, 31 as a production axis, i. H. during workpiece machining.
  • a transverse movement transverse to the longitudinal direction of the press according to arrow 55 is the production axis d. H. not necessary during processing, since the distance between the two mounting rails 30, 31 remains unchanged during the transport process.
  • a transverse movement may also be necessary in the 2-axis system as shown in FIG. 5b for retrofitting the system (set-up axis) in order to uncouple and subsequently unplug the crossbar 39 to 46 on the associated pegs 65, 66 on the sliding tables 4 to 6 to enable.
  • This transverse movement as a set-up axis for decoupling the crossbeams is shown in FIG. 5b with reference number 55.
  • FIG. 5c it can be attached to the holding pins 65, 66 with associated mounting bolts pinned cross-beam with suction spider can be swiveled 90 ° next to the sliding table in order to achieve an easier removal position of the interchangeable parts.
  • FIG. 1 shows the stake holder on one press side in a stake out position 67, each with a horizontal suction spider pivoted through 90 °.
  • the horizontal position of the suction spider 47 is shown in FIG. 5b, the suction spider 47 pivoted through 90 ° is shown in FIG. 5c.
  • FIGS. 5a to 5c An additional height-adjustable bracket 70 can also be seen from FIGS. 5a to 5c, to which the transverse transport unit 61, 62 is mounted so as to be displaceable in height.
  • This height adjustment serves as the setup axis for the tool change.
  • this height adjustment mechanism has a spindle 71, 72 which is driven by a common height adjustment drive 73 with a corresponding deflection gear 74 in the sense of a height adjustment of the transport units 61, 62.
  • the transport unit 61, 62 is in the uppermost position, i. H. the sliding table 4 with the lower tool 7 and the upper tool 10 placed thereon can be easily moved out of the press room.
  • the transverse transport units 61, 62 shown in FIGS. 5a to 5c can have different drive systems, with a belt drive, ie a traction drive, being selected in FIGS. 5a to 5c.
  • a belt drive ie a traction drive
  • Such a drive system has become known in principle from DE 32 33 428 C2 mentioned at the beginning for a workpiece transport. The disclosure of this patent is expressly included in the description of this drive system in the present application.
  • each transport unit 61, 62 has a first, horizontally rotating belt 75, which drives a slide 77 for the closing / opening movement via a drive motor 76 which can be displaced in the direction of the transverse axis 55.
  • Another drive motor 78 arranged at the end with drive roller 90 serves to drive a deflection belt 79 fastened on the other side 91 of the transport unit, which is guided via four deflection rollers 80 in the carriage 77 and via a further two deflection rollers 81 in the lifting column 59, 60.
  • the belt in this strand is lengthened or shortened, so that the lifting column 59, 60 moves up or down, depending on the direction of movement of the deflection belt. H. is moved in the stroke 56.
  • FIGS. 6a to 6c shows an alternative transport unit 63, 64 which has a spindle drive 82 instead of the belt drive or cable drive of the transport device 61, 62 in FIGS. 5a to 5c.
  • a spindle drive motor 83 is provided for the spindle 82, which interacts with a spindle nut 84 on the slide 77 in order to carry out the transverse closing / opening movement.
  • a spline shaft or ball slide shaft 85 with pinion and rack is the lifting drive of the lifting column 59, 60 by means of the lifting drive motor 86th
  • the motors 76, 78 and 83, 86 of the transport units 61 to 64 are designed as high-precision drive motors which allow programmable movement sequences in their movements.
  • Programmable electric or hydraulic servomotors 83, 86 are provided.
  • FIGS. 6b and 6c corresponds in principle to the illustration described according to FIGS. 5b and 5c, but with the alternative transport unit 63, 64.
  • the crossbeam 39 to 46 in FIG. 6b is set out on the setting out holders 65, 66 in a setting out position 67 and the transport units 63, 64 moved upwards via the height-adjustable brackets 70 for retrofitting.
  • the suction spider 47 is arranged pivoted through 90 °.
  • FIGS. 7 and 8 shows exemplary embodiments for a 3-axis drive, i. H. in this case, the gripper rails 30, 31 perform a transverse movement 55 in addition to the longitudinal movement directed in the longitudinal direction of the press (arrow 38 in FIG. 4) and the lifting movement 56.
  • the gripper rails 30, 31 perform a transverse movement 55 in addition to the longitudinal movement directed in the longitudinal direction of the press (arrow 38 in FIG. 4) and the lifting movement 56.
  • the 2-axis transfer with crossbeams described in FIGS. 1, 3 and 5 can easily be converted into a 3-axis transfer with gripper elements, since the transport unit 61 to 64 with its lifting column 59, 60 and its transverse carriage 77 itself ensures the lifting movement and the closing or opening movement.
  • the gripper rails 30, 31 are in turn connected to the lifting columns 59, 60 via longitudinal guide carriages 57, 58, so that all movements in all three axes can be carried out independently of one another.
  • the gripper elements 48 to 54 can carry out the usual travel movements on the workpiece 26 as described at the beginning.
  • FIG. 7b shows the arrangement according to FIG. 7a during the conversion process.
  • the gripper elements 48 to 54 are pinned onto the pegs 65, 66 on the sliding tables 4 to 6 and pivoted through 90 ° for better tool change as shown in FIG. 7c.
  • This layout position 67 on the layout holders 65, 66 is also shown in FIG. 2 with reference number 67.
  • FIG. 7c as shown in FIG. 5c, the raised position of the two transport units 61, 62 on the height-adjustable bracket 70 or on the spindles 71, 72 is shown as a conversion axis.
  • FIGS. 7a to 7c the same parts are therefore designated with the same reference numerals as in FIGS. 5a to 5c.
  • FIGS. 8a to 8c again corresponds to a 3-axis operation of the large-part step press as described for FIGS. 7a to 7c, but instead of the transport unit 61, 62 with a belt drive, a transport unit 63, 64 with a spindle nut drive or a spline-pinion rack and pinion drive, as already explained in more detail in the embodiment according to FIGS. 6a to 6c for a 2-axis operation.
  • the same parts are provided with the same reference numerals.
  • the two transport units 63, 64 in the exemplary embodiment according to FIG. 8 a can carry out the transverse movement 55 with their spindle drives, so that the gripper elements 48 to 54 can handle the workpiece 26 on both sides.
  • the lifting columns 59, 60 which are driven by a spline-pinion-rack-and-pinion drive, perform the required lifting movement according to arrow 56.
  • FIG. 8b shows the 3-axis drive according to FIG. 8a with the gripper elements 48 to 54 set out on the sliding tables 4 to 6.
  • the gripper elements 48 to 54 are detached from the receiving flange 68, 69 and by means of a swivel arm 88 on a swivel device 87 lifted.
  • the illustration according to FIG. 8c also shows the changeover position of the 3-axis drive with gripper elements 48 to 54 pinned on the swivel arms, the swivel device 87 having swiveled the swivel arm 88. This is done by folding the swivel arms 88 through 90 °, so that the gripper elements lying in a horizontal plane in FIG. 8b lie in a vertical plane in FIG.
  • FIGS. 9 to 14 show different embodiments of a large-part step press with convertible 2-axis operation with cross members or 3-axis operation with gripper elements, with separate orientation steps or empty steps according to the embodiment according to FIGS. 2 and 4th can be dispensed with.
  • This is made possible by the fact that special holding devices are provided for the alternative fastening of the crossbeams or gripper elements, which can carry out their own longitudinal and / or pivoting movements, as described below.
  • the large-part step press shown in longitudinal section in FIG. 9a consists of five processing stations 101 to 105 arranged directly next to one another, each with a sliding table 106 with a lower tool 108, an upper tool 109 and a press ram 110 and upper spars or head pieces 111 Machining of a workpiece 26.
  • the protruding parts are shown in FIG. 9a essentially only in the first machining stage 101. Of course, all further processing stages contain the same or similar parts.
  • the processing stages 101 to 105 are laterally delimited by press stands 112 to 117, wherein in the embodiment according to FIG. H. a transverse transport unit 61 to 64 is located between the stands 113, 115, 117.
  • the parallel gripper rails 30, 31, which are driven in their longitudinal direction (arrow 38) via push rods 34, 35 and by means of levers 32, 33 of drive motors 37, extend through the entire press space, the drive motors 37 acting jointly on a toothed segment.
  • the drive can also be driven by cams by the press drive.
  • the vertical lifting movement (arrow 56) and a transverse movement transverse to the longitudinal direction 38 of the press (see arrow 55 in FIGS. 3 and 4) are carried out by the transport units 61 to 64 as previously described.
  • FIG. 9a relates to a large part step press with 2-axis drive, i. H.
  • a swivel device 87 with a swivel arm 88 as already described for FIGS. 8a to 8c is provided for retrofitting when changing tools, which according to the illustration 9b the crossbar 118 with suction spider 119 lifts off the mounting flange 68, 69 on the mounting rail 30, 31 and leads into a position pivoted by 90 °. This pivoting position 89 is shown in broken lines in FIG. 9b.
  • FIGS. 10a, 10b shows the same facts as the exemplary embodiment according to FIGS. 9a, 9b, but with a single press ram 110 in the first processing station 101 and subsequent double rams 110 'for the subsequent processing stations 102, 103 and 104 and 105.
  • the representation according to FIG. 10a relates to a longitudinal section through the large-part step press with 2-axis suction beam operation in the removal position
  • FIG. 10b relates to the associated tool change position analogous to the description according to FIG. 9b.
  • the same parts are again provided with the same reference numerals as previously described. Accordingly, the two press stands 114, 116 are missing in the exemplary embodiment according to FIGS. 10a, 10b due to the formation of double rams.
  • the processing stations 101 to 105 are equally present.
  • FIGS. 11a, 11b corresponds to a press structure as described for FIGS. 9a, 9b.
  • the same parts are again provided with the same reference numerals.
  • a 3-axis press drive with gripper elements 120 is implemented in each processing station 101 to 105.
  • 11a again shows a longitudinal section through the large-part step press with, for example, five processing stations 101 to 105 arranged in succession in 3-axis operation in the removal position of the workpiece 26, while FIG. 11b shows the associated changeover position for the tool change.
  • the gripper element 120 is unplugged on the swivel arm 88 and then uncoupled from the receiving flange 68, 69 on the gripper rail 30, 31.
  • the swivel device 87 causes a swivel movement by 90 °, so that this is initially horizontal in the processing station 101 in FIG. 11b aligned gripper element 120 comes to lie laterally on the sliding table 107 in a vertical changeover position 120 'in the pivoting position 89.
  • the swiveling of the swivel arm 88 takes place after the sliding table has been moved out of the press and facilitates the tool change.
  • the transport units 61 to 64 have pulled the gripper rails 30, 31 upwards, as described above.
  • FIGS. 11a, 11b The representation according to FIGS. 11a, 11b is shown in principle in the end view in FIGS. 8a to 9c.
  • FIGS. 12a, 12b again shows, analogously to FIGS. 10a, 10b, a press structure with a double ram 110 'as described for FIGS. 10a, 10b.
  • a 3-axis gripper rail operation takes place, in which the gripper rails 30, 31 carry out the transverse movement required for tool detection into the press space.
  • 12a again shows a longitudinal section through the large-part step press with single plunger 110 and double plunger 110 'and 3-axis gripper rail drive with gripper elements 120 in the removal position of the workpiece.
  • FIG. 12b shows an associated illustration according to FIG. 12a in the tool change position as described analogously to FIG. 10b.
  • the same parts are again provided with the same reference numerals.
  • transport units 61 to 64 are used in principle, as are described in detail for FIGS. 1 to 8.
  • the press arrangements according to FIGS. 9 to 12 do not have their own orientation station as an empty stage or intermediate stage, as is shown with reference numerals 21 to 25 in FIGS. 1 to 4. These orientation stations are required to change the position of the workpieces between the individual processing stages. A disadvantage of this is the increased space requirement for such orientation levels, so that the press can have a larger overall length.
  • the changes in position of the parts to be carried out by the orientation stations are integrated directly into the parts transport, which in turn gives the essential advantage of a shorter press length.
  • FIGS. 9 to 12 The development of the present invention therefore provides, according to the exemplary embodiments according to FIGS. 9 to 12, that the position of the parts between the individual processing stages 101 to 105 is changed as described above by a special additional drive in the area of the stake holder 65, 66.
  • 13a shows one Section along the section line AB according to FIG. 9a with an additional adjusting device 121 for a 2-axis operation with crossbar 118 and suction spider 119.
  • FIG. 13b shows an associated longitudinal section along the section line EF in FIG. 13a.
  • FIG. 14a shows a longitudinal section along the section line C-D in FIG. 11a with a 3-axis gripper rail drive with gripper elements 120, with a sectional illustration along the section line G-H in FIG. 14b.
  • the adjusting device 121 is designed as a swivel and shifting device and is used to change the position of the workpieces during transport or storage from one tool level to the next tool level.
  • the adjustment device is arranged on the inside 122 of the support or gripper rails 30, 31 facing the tool space.
  • the support or gripper rail 30, 31, which is square or rectangular in cross section, has a longitudinal slide guide 123 on its inner guide surface 122, in which a slide 124 which can be displaced parallel to the support or gripper rail is guided.
  • the longitudinally displaceable slide 124 has a connecting flange 125 for a horizontally arranged adjustment guide 126, which can be longitudinally displaced via a spindle 127 by means of a programmable spindle drive 128.
  • the carriage 124 can consequently be moved longitudinally in the carriage guide 123 in the longitudinal direction 38 of the press by a certain amount corresponding to the length l 1 of the longitudinal carriage guide relative to the support and gripper rail arrangement.
  • This longitudinal displaceability is transferred to the crossbar 118 or the gripper elements 120 and is also used for step compensation.
  • Such step compensation ie a relative longitudinal displacement with respect to the feed step of the support or gripper rails may be necessary due to the change in position of the workpiece, which is caused by the pivoting movement.
  • a type of swivel cross 130 is provided via a central bearing bolt 129 through the longitudinally movable carriage 124, at its two upper ends two connection bolts 131, 131 'are provided for fastening a crossbar 118 with suction spider 119, a cross yoke 132 serving as a connection plate.
  • the two upper connecting bolts 131, 131 'are therefore equipped with the crossbar.
  • the swivel cross 130 further includes on its two lower wings two further connection bolts 133, 133 ', which, as shown in FIGS. 14a, 14b, serve to receive the gripper elements 120 on gripper bars. Accordingly, the swivel cross 130 can accordingly accommodate the cross members 118 in its upper region for the 2-axis operation and the gripper elements 120 in its lower region for the 3-axis operation.
  • the swivel cross 130 and thus also the connections for the crossbeam 118 or gripper elements 120 are still pivotally mounted about the axis of rotation of the bearing bolt 129.
  • a further, downward-pointing arm 134 of the swivel cross 130 leads to a swivel drive 135.
  • the swivel drive 135 comprises a horizontally arranged spindle 136 which interacts with a spindle nut 137 with swivel bolts and sliding block 138 in order to deflect the swivel arm 134.
  • a programmable swivel drive 139 is connected to the longitudinally movable carriage 124 via a housing 140.
  • the programmable swivel drive 139 therefore therefore acts via the sliding block 138 on the arm 134 of the swivel cross 130 in the sense of a swivel movement through an angle 2 ⁇ , as is shown in FIG. 13 b as a deflection from the vertical axis.
  • the described adjustment device 121 with swivel device and longitudinal adjustment device can replace the receiving flanges described in the previous figures for the optional attachment of the cross members or gripper elements in the exemplary embodiment according to FIGS. 1 to 12.
  • the pivoting and displacement devices 121 can also be used in all the exemplary embodiments according to FIGS. 1 to 12 for changing the position of the workpiece.
  • this also means swivel and displacement devices according to the exemplary embodiments according to FIGS. 13 and 14.
  • FIGS. 13a, 14a in particular also show the lifting columns 59, 60 and the attachment of these lifting columns via a longitudinal guide carriage 57, 58, as described in the previous figures.
  • These longitudinal guide carriages 57, 58 each consist of two associated longitudinal guide rails 141, 142, with a corresponding roller bearing 143 for a longitudinal displacement.
  • the central drive 32, 33 can consequently move the support or gripper rails 30, 31 longitudinally without influencing the position of the lifting columns 59, 60.
  • the support and gripper rails 30, 31 are as support rails in connection with a 2-axis drive with a suction beam transfer and referred to as gripper rails in a 3-axis operation with transversely displaceable gripper elements.
EP95102496A 1994-03-12 1995-02-22 Installation de transport pour pièces à usiner dans une presse Expired - Lifetime EP0671228B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4408450 1994-03-12
DE4408450A DE4408450A1 (de) 1994-03-12 1994-03-12 Transporteinrichtung für Werkstücke in einer Presse

Publications (3)

Publication Number Publication Date
EP0671228A2 true EP0671228A2 (fr) 1995-09-13
EP0671228A3 EP0671228A3 (fr) 1995-09-27
EP0671228B1 EP0671228B1 (fr) 1999-12-29

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP95102496A Expired - Lifetime EP0671228B1 (fr) 1994-03-12 1995-02-22 Installation de transport pour pièces à usiner dans une presse

Country Status (4)

Country Link
US (1) US5582061A (fr)
EP (1) EP0671228B1 (fr)
DE (2) DE4408450A1 (fr)
ES (1) ES2141853T3 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0972586A3 (fr) * 1998-07-15 2001-01-17 Müller Weingarten AG Procédé pour la commande d' actionnement d'une presse de transfert pour grandes pièces et dispositif pour réaliser ce procédé
EP1985391A1 (fr) * 2007-04-27 2008-10-29 Schuler Pressen GmbH & Co. KG Presse de transfert dotée d'un écart irrégulier entre les stations
CN112893671A (zh) * 2021-03-09 2021-06-04 广州市金峰机械科技有限公司 一种气雾罐盖连续冲压送料装置
CN114192657A (zh) * 2021-11-11 2022-03-18 江苏京沂电器有限公司 一种锰铜分流器成产用冲压装置

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DE19542203A1 (de) * 1995-11-13 1997-05-15 Schuler Pressen Gmbh & Co Umrüstbare Mehrstationenpresse
JP3423141B2 (ja) * 1996-03-15 2003-07-07 株式会社小松製作所 同期ずれ復帰装置
US5676014A (en) * 1996-05-03 1997-10-14 Chrysler Corporation Transfer mechanism for multi-stage transfer press with cross bar supports
DE19642684C2 (de) * 1996-10-16 1999-11-25 Daimler Chrysler Ag Großteil-Transferpresse
DE19740293A1 (de) * 1997-09-13 1999-03-18 Schuler Pressen Gmbh & Co Transferpressen mit automatischem Toolingwechsel
US5983696A (en) * 1998-03-02 1999-11-16 John H. Maher Transfer system
DE10009574A1 (de) * 2000-02-29 2001-08-30 Mueller Weingarten Maschf Flexible Transporteinrichtung für Pressen
DE10223897A1 (de) * 2002-05-29 2003-12-11 Mueller Weingarten Maschf Werkzeugwechselvorrichtung für Pressen
JP4483306B2 (ja) * 2004-01-16 2010-06-16 トヨタ自動車株式会社 タンデムプレス装置
JP2009119580A (ja) * 2007-11-16 2009-06-04 Aida Eng Ltd 搬送装置および大型搬送装置
US20090293688A1 (en) * 2008-05-30 2009-12-03 Benedikt Nillies Metal forming machine and method for spinning/flow forming
US8210016B2 (en) * 2008-10-03 2012-07-03 Ford Global Technologies, Llc Multi-station dies for extruding teeth
JP5793109B2 (ja) * 2012-05-15 2015-10-14 アイダエンジニアリング株式会社 ワーク搬送装置
WO2018121838A1 (fr) * 2016-12-27 2018-07-05 Abb Schweiz Ag Système de manipulation pendulaire pour une ligne de presse
US20190011023A1 (en) * 2017-07-10 2019-01-10 Susan Dietrich Cone shaped variable gear cylinder apparatus
CN109530564B (zh) * 2018-12-29 2024-01-02 广州市恒犇电脑设备有限公司 高效率翻转机
CN112974654B (zh) * 2021-02-04 2023-01-10 广东力王高新科技股份有限公司 一种变压器夹件生产用联合冲剪机
CN113008659B (zh) * 2021-02-08 2022-11-15 新兴铸管股份有限公司 水压机打压混管输送装置
CN113083950A (zh) * 2021-04-19 2021-07-09 李雅婷 一种土木工程施工用模板加工设备及其使用方法

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EP0972586A3 (fr) * 1998-07-15 2001-01-17 Müller Weingarten AG Procédé pour la commande d' actionnement d'une presse de transfert pour grandes pièces et dispositif pour réaliser ce procédé
EP1985391A1 (fr) * 2007-04-27 2008-10-29 Schuler Pressen GmbH & Co. KG Presse de transfert dotée d'un écart irrégulier entre les stations
US7841274B2 (en) 2007-04-27 2010-11-30 Schuler Pressen Gmbh & Co. Kg Transfer press with non-uniform station spacing
CN112893671A (zh) * 2021-03-09 2021-06-04 广州市金峰机械科技有限公司 一种气雾罐盖连续冲压送料装置
CN114192657A (zh) * 2021-11-11 2022-03-18 江苏京沂电器有限公司 一种锰铜分流器成产用冲压装置

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US5582061A (en) 1996-12-10
EP0671228A3 (fr) 1995-09-27
DE59507500D1 (de) 2000-02-03
DE4408450A1 (de) 1995-09-14
ES2141853T3 (es) 2000-04-01
EP0671228B1 (fr) 1999-12-29

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