EP1748855A1 - Device for the stepped displacement of workpieces - Google Patents

Device for the stepped displacement of workpieces

Info

Publication number
EP1748855A1
EP1748855A1 EP20050739886 EP05739886A EP1748855A1 EP 1748855 A1 EP1748855 A1 EP 1748855A1 EP 20050739886 EP20050739886 EP 20050739886 EP 05739886 A EP05739886 A EP 05739886A EP 1748855 A1 EP1748855 A1 EP 1748855A1
Authority
EP
Grant status
Application
Patent type
Prior art keywords
gripper
rail
lever
sliding
pivot
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
EP20050739886
Other languages
German (de)
French (fr)
Other versions
EP1748855B1 (en )
Inventor
Klemens Nock
Theo Pfeifer
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.)
Erdrich Beteiligungs GmbH
Original Assignee
Erdrich Beteiligungs 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

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D43/00Feeding, 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
    • B21D43/02Advancing work in relation to the stroke of the die or tool
    • B21D43/04Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
    • B21D43/05Advancing 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
    • B21D43/055Devices comprising a pair of longitudinally and laterally movable parallel transfer bars

Abstract

The invention relates to a device (1) for the stepped displacement of workpieces inside a press (2) or similar processing equipment. Said device comprises at least one or two gripper rails (4) that can be displaced back and forth in the direction of their longitudinal extension and in the feed direction, said rails being displaced transversally in relation to themselves in order to grasp workpieces. To execute the gripping movement, the gripper rail (4) comprises levers (5) that run obliquely and in opposite directions to one another, whereby the ends of said levers that face away from the gripper rail can be displaced towards or away from one another. Pivoting arms (11), which together with the levers (5) form shears or half a pair of shears, are hinged on said levers (5) to guide the resultant transversal movement. A shear drive of this type permits a parallel displacement of the gripper rail (4), even where space is limited, without the use of a drive that protrudes beyond the longitudinal extension of the gripper rails (4).

Description

Apparatus for the stepwise moving of workpieces

The invention relates to a device for the stepwise moving of workpieces, particularly within a press, having at least one or two back in the direction of advance for the advance and return movement and forth, gripper parts or gripper regions having for detecting the workpieces gripper rail (n) for detecting the workpieces and for moving in the feed direction then again adjusted in the starting position / are being at / the gripper rail (s) at least two attack pivotable lever in parallel or in mirror synchronism with one another in the plane of movement, in a plane parallel thereto or in an oblique plane, and to those of the other gripper rail are pivotable in an apparatus having two parallel gripper rails these levers of the one gripper rail overall gene intimately.

Such an apparatus having two parallel gripper rails is known from DE 102 06 773 C1, wherein in this publication concerning further prior art "is cited such gripper rails. This device has proven itself especially in such presses in which the gripper rails between the press stands are arranged in this superior in its longitudinal direction and in the feed direction of the workpieces. is advantageous in this respect that only the gripper rails and the workpieces covered by them and optionally gripper located on the gripper rail or gripper parts, so relatively small masses have to be moved. However, there are also known presses in which the distances between the press stands are too small to let protrude the gripper rails between these stands. In such presses so the gripper rails must be located within the interstices of the press stand and also reciprocated so that there is only a limited space available for the drive for the movements of the gripper rails.

Although already presses with such a gripper rails are known in which the movements of the gripper rail run transversely to their longitudinal extension within the distances • the press stand, but this requires drives, which are arranged outside the press contour, and because of the thereby running out of the press contour movements special precautions the operators and beyond require security clearances. Here, transversely to the movement and to the longitudinal extent of the rails arranged perpendicular known to the gripper rails from the press outline outstanding linear drives, which require not only the aforementioned safety distances, but also complicate the accessibility and the possibility of observing the sequence of the gripping and feeding movements, as a user must be in a suitably large distance from the gripper rails.

It is therefore the object to provide a device of the type mentioned, in which the drive or drives of the gripper rails, in particular the drives for the gripping movements themselves need not perform transversely to the outline of the press outward movements to the gripper rail or be able to adjust the gripper rails in opposed gripping movement and. In this case, this object is also true for a device having only one gripper rail, which are arranged at corresponding gripper for workpieces.

To achieve this object, the apparatus initially defined is characterized in that the two attack ends with their said gripper bar facing away from the gripper rail pivotably articulated lever or areas pivotally attached parallel to the direction of extension of the gripper rail towards or from each other movable away sliding parts and for reciprocal is movements of the gripper rail transverse changed to their longitudinal extension the spacing of these sliding parts and the gripper rail extending direction transverse to their longitudinal positively driven.

The drive for the transverse movement of the gripper rail thus causes first a movement parallel to the gripper rail namely on the sliding parts. Thereby, the levers are swiveled, whereby this parallel movement of the sliding parts is converted by the lever in a cross-track movement of the gripper. By approaching or the removal of the ends of the levers remote from the gripper rail with the aid of the sliding parts so the gripper rail can be adjusted as desired, parallel to itself, wherein a positive guide for the corresponding precise parallel adjustment provides. Cross takes place to the longitudinal extent of the gripper rail movements for an adjustment drive can thus be avoided so that the drive and the lever within or substantially within the outline of the press stands, can be arranged, for example, between two such press stands, so that it not only has no relation to the outline are the press stand transversely to this outline success movements, but also the drive substantially within this outline of the press or at least within the usual outline of protective doors can be accommodated in such presses. The levers and the drive of the sliding parts can therefore at least partially within the contour of stands of the press, in particular between two press stands which are adjacent to each other in the feed direction may be disposed. Thus, a space-saving arrangement is possible not only the gripper rails, but also its drive within the press, which facilitates the operator aμch monitoring and control.

In addition, it is advantageous if the drive for the advance movements of the gripper rail or gripper rails is arranged in the longitudinal direction at least partially within the outline of the stator of the press. Can thus be moved in its longitudinal extending direction of the gripper rails after the detection of workpieces without the need for required driving significantly protrude beyond the contour or outline of the press. Depending on the choice of the drive, it can also completely find space within the outline or blueprint of the press.

An effective and space-saving be housed restricted guidance for the transverse movement of the respective gripper rail can be achieved in that the pivot arms are articulated to the levers between the points of attack on the gripper rail and the respective sliding part, the end of sliding elements or fixed bearings remote from its the point of articulation and the gripper rail are pivotally mounted, and that the spacing of the sliding part on the one hand and of the sliding element or bearing on the other hand variable for the transverse adjustment or during the transverse adjustment of the gripper rail or enlargeable. The respective lever is thus stabilized with a swivel arm, so that the adjustment of the sliding parts to change their respective distances results in a safe and precise parallel adjustment of the gripper rail.

A development may provide for this is that the pivot arm intersects the lever at the common articulation point and also attacks on the gripper rail through a joint, wherein the presence steering make the lever and the thereto pivotally mounted swivel arm on the gripper rail with respect to their distance during the adjustment of the gripper rail transverse to itself is analogous to the distance of the sliding element and the displacement element changeable. In this case, therefore, the gripper rail is practically detected by respectively two scissors and adjusted transverse to, while one can speak of a "single-arm" in the case in which the swing arm does not extend to the gripper rail opposite a scissors-like arrangement of levers. and swivel arm has the "single-arm" the advantage that a close gripper rail joint can be saved.

For simplification of the motion sequence, it is advantageous if the the lever and the gripper rail facing away from pivot point of the pivot arm stationary and the adjacent thereto, located on the sliding part pivot point of the lever in parallel to the longitudinal extension of the gripper rail relative - is adjustable. In this way, an adjustment can be avoided or are trained at best as a fixed part or bearing on which the corresponding arm must only perform pivotal movements. Accordingly, simply the entire kinematics in the transverse adjustment of the gripper rail by changing the distance of the sliding parts for the corresponding encryption pivoting of the lever. The two sliding parts of the two engaging a gripper rail levers for moving the gripper rail closer to these sliding parts toward each other and for the opposite - movable away from each other gripping movement and the articulation points of the pivot lever in particular, be stationary.

With such an arrangement of the lever and of the pivoting arms and their respective joints thus satisfies practically the shift of the sliding parts for changing their mutual distance in order to move the gripper rail at right angles to the displacement movement. Thus, this entire kinematics and drive arrangement can in a small space and are thereby at least largely accommodated within the outline of the press stands to save space.

The gripper rail or gripper rails can after the detection of workpieces in their longitudinal direction that is, in the feed direction - thus be movable such that the articulation points of the levers and of the pivot arms by means of carriages in each case facing away from the gripper rail are adjustable in a direction parallel to the gripper rail arranged guide and that for this adjusting movement, for example a spindle motor or working cylinder or linear drive is provided. Sub-tray case a part is understood that engages with a counter guide on a guide and thereby engages in this guide and / or the guide surrounds. With an effective parallel to the extension of the gripper rail drive, for instance a spindle motor, the whole arrangement of the gripper rail, lever arm and the articulation points can be adjusted including sliding parts in order to perform the desired feed motion of the gripper rail and also their back adjustment. For the opposite movement of the sliding parts - for transverse adjustment of the gripper rail - may be provided in which attack the respective threaded portions of the spindle is a two oppositely directed threaded regions having spindle and in opposite directions to the sliding parts unthreaded spindle nuts, and the spindle may have a single drive motor. For the transverse adjustment of a gripper rail so is sufficient in spite of the two levers and the actuating these sliding parts when using a spindle in opposite directions, a single drive motor so that this drive can be compact and inexpensive.

have the carriage, which provide the articulation remote from the gripper rail, the lever and the pivot arms and to a

.Greiferschiene belong can be coupled together or connected in particular via a connecting rod, so that it is sufficient a single feed drive for each gripper rail which can displace this carriage coupled together.

A particularly advantageous, especially for the absorption of larger masses or weights favorable further development of the invention may be that the engaging arm is movable to the respective lever in a plane which is oblique to the plane in which the levers are movable. This results in a tensile or compressive load on the swing arms, whereby the

Flexural rigidity of the entire lever and pivot arm assembly

can be .vergrößert, so that heavier rails and / or heavier workpieces and / or lighter lever and / or the pivot arms are made possible.

In this case, the can or the pivot arms relative to the movement plane of the lever obliquely upward or obliquely downward run independently of whether the plane of movement of the lever horizontally or also diagonally disposed obliquely downward with respect to a horizontal plane or above. is important for the stiffening of the scissor or scissors half of the drive, that the ends facing away from the levers of the pivot arms and the said adjacent ends of the levers are arranged at different heights and the pivot arms approach the levers towards the common joint. This results in good reinforcement of the lever and the pivot arms, wherein an arrangement of the end of the pivoting arm over the end of the lever makes the swing arm to a pull rod arrangement and below the end of the lever to a push rod.

It should be noted that the drive devices for the gripper rails on vertical guides or threaded spindles and stored up and may be movable up so captured by the gripper rails objects can also be raised and / or discontinued. In this case, each press stand, a lifting unit can be provided which makes it possible, based on the transport level to perform overtravel upward or downward, wherein a pneumatic counterbalancing can be provided. The front in the feed direction and rear lifting units can be connected to a base cross-member on which the feed drive can be mounted for the gripper rails.

Especially in combination individual or several of the features and measures, a device with gripper rails, which can be housed together with its drive in a confined space results, wherein the drive for the transverse movements of the gripper rails acts parallel to the latter and via pivot lever and constraining guides in corresponding transverse movements of the gripper rails is converted. This allows transverse to the gripper rails and moving drives are avoided.

Embodiments of the invention with reference to the drawings are described in detail. It shows in a partially schematic representation:

Fig. 1, is disposed an inventive device for step-feeding of workpieces between the uprights is a front view of a tearing only partially drawn and environmental press, which is also adjustable in height,

Truss Fig. 2 is a plan view of the arrangement according to Fig.1, with stands of the press or the like machine can be seen in outline with respect to its cross section and pivotable lever and on its guide serving pivot arms for the movements of the gripper rails transversely to its longitudinal extension at situated between the uprights are supported, with two successive ones to be moved away from each other and gripper rails are provided,

Fig. 3 in an enlarged scale of Figure 2 corresponding view of a gripper rail with its drive, which itself is housed as the gripper rail between two in the longitudinal direction of the gripper rail adjacent Stän- which the press or the same,

Fig. 4 is a representation of Figure 3 corresponding to a displacement of the gripper rail and its Verstellan- drive in its longitudinal direction,

Fig. 5 is a representation corresponding to Figure 4 after an adjustment of the gripper rail from the center of the press away to the outside,

Fig. 6 is a representation corresponding to Figure 5 after displacing the adjusted outwardly in the gripper rail of Fig.3 corresponding position, Fig. 7 is a corresponding view of Figure 3 of a modified embodiment in which the adjustment and guiding the adjustment of the gripper rail transversely to its longitudinal extension loading relationship parallel to itself with the aid of two intersecting lever is feasible,

Fig. 8 is a Fig.7 representation corresponding to the adjustment of the gripper rail away from the center of the press (and therefore mirror-symmetrically arranged by an unillustrated other gripper rail also away), FIG. 9 to 14 are end views of the device to a press with different spatial arrangement of the levers and of the pivot arms, wherein these with respect to the planes of movement in each case different angles.

In the embodiments described below, matching or bezüglicher function corresponding parts are also provided with different embodiments or a different structural design in each case with identical reference numerals.

A designated as a whole with 1 is used to particular step-feeding of non-illustrated workpieces within an only partially shown or implied press 2, in which the workpieces are subjected to after each advance movement or after a feed step an additional editing operation.

For a better understanding especially of Figure 3 to 8 while the centers of the press 2 are indicated between their press temples 3 by dash-dotted lines, the longitudinal center with LM and the transverse center marked with QM.

Analog DE 102 06 773 C1 has the apparatus 1 comprises two parallel, parallel also to the longitudinal center LM, movable in their longitudinal direction and thus in the feed direction and again retractable gripper rails 4 in which not shown in detail but known manner gripper parts or gripper regions for detecting the workpieces are provided. In this case, is indicated by the same Fig. 3 to 8 in that a device 1 with only one gripper rail 4 could be provided, if this corresponding gripper or gripper parts comprises for the workpieces.

For detecting such workpieces the respective gripper rail 4 is parallel to itself, in the case of two gripper rails 4 these towards each other and for releasing again corresponds oppositely movable while the already mentioned movements in the longitudinal direction of the gripper rails 4 are provided for the feed. When comparing Figure 2, 3 and 4 can be seen the gripper rail 4 first in a left and then right in one position.

When comparing Figures 5 and 6 an opposite feed movement of the gripper rail 4, which thereby is compared to Figures 3 and 4 also wegverstellt parallel to itself from the longitudinal center LM and thus has enabled one or more workpieces can be seen.

In all embodiments, two pivotable in parallel or in mirror synchronism with each other in the respective movement plane, in a plane parallel thereto or in an oblique 'level lever 5 engage the gripper rails 4, wherein in accordance with a device 1 having two parallel gripper rails 4 2, this lever 5 of the one gripper rail 4 to those of the other gripper rail 4 are pivotable in opposite directions, as can be seen in Fig.2.

In figures 2 to 8 it is shown that the two attack articulated on the gripper rail 4 pivotably articulated lever 5 ends with their said gripper bar 4 facing away or areas pivotally attached parallel to the direction of extension of the gripper rail 4 towards or from each other movable away sliding parts 6, wherein the comparison of FIGS. 4 and makes clear 5 or 3 and 6, that the spacing of these sliding parts is for the reciprocating movements of the gripper rails 4 transversely to their longitudinal extension or parallel to itself 6 varied, with the respective gripper rail 4 also in yet is positively guided manner to be described transverse to their longitudinal direction.

Are the two sliding parts 6 of the two levers 5 of a gripper rail arranged to each other in the maximum possible distance 4, the gripper bar of the longitudinal center of the press is located closest LM, so assumes its gripping and conveying position.

In contrast, are the sliding parts 5 according to 5 and 6 or 8 approach each other, whereby the lever 5 can be correspondingly pivoted, the gripper rail 4 is in its the longitudinal center LM farthest position, in which any workpieces released. By adjusting the sliding part 6 from the maximum distance to so the two are already folded and in the starting position slightly inclined lever 5 thus moves away the gripper rail 4 of the middle LM parallel to itself when the two levers 5 and their sliding parts 6 symmetrically to each other are arranged to each other and consistently dimensioned.

Here, the lever 5 and to be described drive 7 for the sliding parts 6 are practically completely within half of the outline of the stator 3 of the press 2, while between two longitudinally adjacent press uprights 3, which are adjacent in the direction of one another. Thus, the drive 7 and cooperating with him lever 5 requires no space outside the ground plan of the press. 2

Also, the drive 8 for the advance movements of the gripper rail 4 or gripper rails 4 in their longitudinal direction of extension is at least partially arranged according to Figures 2 to 8 within the outline of the stator 3 of the press 2, wherein said low in Fig.2 recognizable supernatant in each case, within the usual outline of such presses located on protective doors 2 may be housed. For the already mentioned positive guidance of the movement of the gripper rails 4 are parallel to itself in turn hinged articulated on the gripper rail 4 and the articulated engagement points 10 on the JE weiligen sliding part 6 pivot arms 11 to the levers 5 between their articulating points of application 9, which with their this pivot point 12 and the gripper rail 4 facing away from the end of shifting elements or fixed bearings 13 are pivotally mounted. The spacing of the sliding part 6 on the one hand and of the sliding element or bearing 13 on the other hand is for the transverse adjustment or during the transverse adjustment of the gripper rail 4 changed and / or enlarged as it illustrates the comparison of FIGS. 4 and 5 or 7 and 8.

In the embodiments according to Figures 2 to 6 while the pivot arm 11 extends only between its hinge point 12 and the bearing 13, which results in a relatively simple kinematics by means of the lever mechanism consisting of lever 5 and pivot arm. 11 In practice, this arrangement corresponds to a "half-scissors", which allows effective transverse adjustment of the gripper rail. 4

In the embodiment of Figures 7 and 8 is shown that the pivot arm 11 the lever 5 crosses at the common pivot point 12 and acts also on the gripper rail through a joint 14, wherein the pivot points 9 and 14 of the lever 5 and of the pivotable thereon swing arm 11 on the gripper rail 4 with respect to their spacing. transversely to itself analogously to the spacing .of the sliding part 6 and the sliding element or bearing 13 can be changed during the adjustment of the gripper rail 4 as it becomes clear in the comparison of FIGS. 7 and 8. In the adjusted from the middle LM outwardly away position shown in Figure 8, the joints 14 of the pivot arms 11 are each also -angenähert as the sliding parts 6 of the lever 5. It is in this case, with the arrangement of lever 5 and pivot arm 11 "real" scissors, that is to say in the embodiment of Figures 7 and 8, the gripper rails 4 are transverse and parallel adjustable by scissors actuators to itself and forced out.

It is advantageous that the lever and the gripper rail 4 facing away, located on the bearing 13 pivot point of the pivot arm 11 are fixed on the gripper rail as well as the articulation points 9 of the lever 5, so at the exemplary embodiment of FIG. 2 to 6 only the located at the respective sliding part 6 articulation point 10 of the lever 5 has to be adjusted.

The two sliding parts 6 of the two acting on a gripper rail 4 lever 5 are thus closer to the adjustment of the gripper rail 4 to these slide members 6 towards one another and for the gripping movement of two gripper rails 4 from one another or moved apart. The articulation points of the bearings 13 of the pivot lever 11 remain stationary in an advantageous manner.

It has already been mentioned that the gripper rails 4, for example according to Figures 2 and 3 can be moved after the detection of workpieces, ie in the position in its longitudinal direction into the position shown in Figure 4. This may embodiment examples in the training take place in that the articulation points respectively remote from the gripper rail 4 10 of the lever 5 and the coupling points or bearings 13 of the pivot arms 11 are adjustable by means of carriage 15a at one arranged parallel to the gripper rail 4 guide 15 and that for this adjustment, for example, a spindle motor 8 with the threaded spindle 8a and the axially adjustable by rotation of the threaded spindle 8a, 15a directly or indirectly connected to the spindle nut 8b or alternatively a power cylinder or some other linear drive are provided with the or the carriage. It can be seen when comparing Figures 3 and 4 or 7 and 8 show how the spindle nut 8b relative to the spindle 8a of the motor 8 is axially displaced depending on the position of the gripper rail 4, together with the areas covered by their carriage 15a.

For the opposite movement of the sliding parts 6 to produce the transverse movement of the gripper rail 4 parallel to itself a two oppositely directed threaded regions having spindle 16 and in opposite directions to the sliding pieces 6 unthreaded spindle nuts 17 are provided in the embodiments in which the respective threaded portions of the spindle 16 rotatably attack, wherein for the spindle 16, a single drive motor 7 is sufficient to both sliding parts 6 toward or away from each other to adjust.

The guide 18 of the adjustable with the aid of the spindle nuts 17 sliding parts 6 can be clearly seen in figures 2 to 8. It is also clear that the guide 18 and hence the displacement of the sliding parts 6 are arranged parallel to the longitudinal extension of the gripper rails. 4

The carriages 15a, which faces the said gripper 4 respectively off articulation points 10 having the lever and the bearing 13 with the articulation points for the pivot arms 11, maintain their displacement, as the comparison of the individual figures shows their mutual distance and therefore can each other or coupled through a connecting rod comparable be prevented, which may be disposed on the their Führungenl 5 having Traverse 19th Accordingly, it suffices for each gripper rail 4 and its carriage 14 a feed drive 8, the exemplary embodiment with the spindle 8a. In the Figure 9 to 14 is shown in different arrangements that the engaging of each lever 5 pivot arm 11 lies in a plane and is movable, which extends obliquely to the plane in which the lever 5 are located and are pivotable.

9 shows an example in which the relatively massive lever 5 are disposed horizontally and can be pivoted in a horizontal plane to actuate the gripper rails 4 accordingly, while the pivot arms 11 in contrast, extend obliquely upwards.

10 shows an analog .Arrangement, but extend the pivot arms 11 from their pivot point on the lever 5 obliquely downward.

In the case of Figure 9, the pivot arms 11 form tensile bars while they are in the embodiment of Figure 10 print bars, wherein it but in both cases the load capacity or the

improve bending rigidity of the support of the gripper rails. 4

In all embodiments according to Figure 9 to 14 while the angle of inclination between the lever 5 and pivot arm 11 is an acute angle whose apex is disposed in or on the hinge point 12 of the pivot arm 11 on the lever. 5

Figures 11 and 12 shows examples in which the lever 5 is in turn arranged at an angle to a horizontal plane and are movable, wherein arranged in accordance with the sliding parts of 6, starting with the gripper bar opposite the lever 5 fig.11 obliquely upwards and in Fig.5 are. Nevertheless, in both cases, the pivot arms 11 are in turn disposed obliquely to these levers 5 and their movement planes. According to Figure 11, the pivot arms 11 extend from their pivot points 12 obliquely downwardly and are compression bars, while forming in accordance with Figure 12 of the articulation points 12, starting with respect to the lever 5 extend obliquely upwards and tension rods.

Also the Figure 13 and 14 are examples of obliquely arranged lever 5, wherein Figure 13 represents an example in which the corresponding, diagonally opposite the levers 5 disposed pivot arms 5 are tension rods in upwardly sloping levers, while the reverse arrangement of Figure .14 ​​obliquely to the gripper rails downwardly extending lever 5, in which underneath inclined pivot arms 11 act as compression members.

In all embodiments, thus, the pivot arms 11 extend relative to the plane of movement of lever 5 obliquely upward or obliquely downward regardless of whether the plane of movement and the profile of the lever 5 is arranged horizontally or also diagonally upwards or diagonally downwards relative to a horizontal plane. The pivot arms 11 obtained by this oblique position relative to the levers 5 thus a double function, in which they effect a precise guidance during the adjustment of the gripper rail 4 parallel to itself and additionally stiffen the formed by them and by the levers 5 support system for the gripper rail 4 ,

up especially in the Figure 1 and 10 to 14 that the drive devices stored for 7 and 8 with the carriage 14 and its guides, and the cross member 19 on fastened to the uprights 3 vertical beams 21 and by means of threaded spindles 20 and nuts can also be seen, and are movable up. Thus, the gripper rails 4 can be adjusted in height, so perform raising and lowering.

The device 1 for the stepwise moving of workpieces within a press 2, or a comparable processing apparatus having at least one or two reciprocable in their longitudinal direction and in the direction of rockable gripper rails 4, which are adjustable transversely to itself for detecting workpieces. For this gripping movement 4, the gripper rail transverse to their extending and oppositely movable lever 5 on which the gripper rail ends facing away from each other or from each other can be moved away, being articulated to the guide of the resulting transverse movement on the levers 5 swing arms 11, with the levers 5 together form a pair of scissors or a half scissors. Over such a scissors drive so the adjustment of the gripper rail 4 can be carried out even in confined spaces, and without over the longitudinal extension of the gripper rail 4 projecting drive parallel to itself.

claims

Claims

claims
1. Device (1) for stepwise shifting of workpieces, particularly within a press (2), with at least one or two back in the direction of advance for the advance and return movement and forth, gripper parts or gripper regions having for detecting the workpieces gripper rail (s) (4), which are for detecting the workpieces and for moving in the feed direction, and then is adjusted in the starting position again /, wherein at / the gripper rail (s) (4) at least two parallel or in mirror synchronism with one another in the plane of movement, in a parallel thereto or attack in a plane to inclined plane pivotable lever (5) and in an apparatus having two parallel gripper rails (4), this lever (5) of the one gripper rail (4) in the opposite direction to those of the other gripper rail (4) can be swiveled, characterized in that the two pivotally articulated on the gripper rail (4) lever (5) with their abgew the gripper rail (4) andten ends or portions pivotally attached parallel to the direction of extension of the gripper rail (4) to each other or different from each movable away sliding parts (6) engage and the reciprocating movements of the gripper rail (4) transversely to their longitudinal extension the spacing of these sliding parts (6) changeable and the gripper rail (4) is positively guided transverse to its longitudinal direction.
2. Device according to claim 1, characterized in that the lever (5) and the drive (7) of the sliding parts (6) at least partly inside the contour of stands (3) of the press (2), in particular between two press stands, the mutually are adjacent in the feed direction, are arranged.
3. Device according to claim 1 or 2, characterized in that the drive for the advance movements of the gripper rail (4) or gripper rails (4) is arranged in the longitudinal direction at least partially within the outline of the stator (3) of the press (2).
4. Device according to one of claims 1 to 3, characterized in that the levers (5) are between the points of attack (9) on the gripper rail (4) and to the respective sliding part (6) pivot arms (11) articulated with its the point of articulation (12) and the gripper rail (4) facing away from the end of sliding elements or fixed bearings (13) are pivotally mounted, and that the spacing of the sliding part (6) on the one hand and of the sliding element or bearing (13) on the other hand, for the transverse adjustment or during the transverse adjustment of the gripper rail (4) can be changed or enlarged.
5. Device according to one of claims 1 to 4, characterized in that the pivot arm (11) crosses the lever (5) at the common articulation point (12) and also on the gripper rail through a joint (14) engages, wherein the articulation points ( 9, 14) of the lever (5) and of the thereto pivotally mounted pivot arm (11) on the gripper rail (4) with respect to their distance during the adjustment of the gripper rail (4) transversely to itself analogously to the spacing of the sliding part (6) and the displacing element or bearing (13) is variable.
6. Device according to one of claims 1 to 5, characterized in that the lever and the gripper rail (4) facing away from pivot point of the pivot arm (11) fixed and the adjacent thereto, articulation point on the sliding part (6) located (10) of the lever (5) is adjustable relative thereto.
7. Device according to one of claims 1 to 6, characterized in that the two sliding parts (6) of the two levers acting on a gripper rail (4) (5) for adjusting the gripper rail (4) closer to these sliding parts (6) towards one another and for the gripping movement from one another can be moved away and the articulation points (13) of the pivot lever (11) there are, in particular stationary.
8. Device according to one of claims 1 to 7, characterized in that the gripper rail (4) or gripper rails (4) are moved after the detection of workpieces in their longitudinal direction characterized in that the articulation points respectively remote from the gripper rail (4) (10 ) of the lever (5) and the pivot arms (11) by means of carriages (15a) are adjustable at an arranged parallel to the gripper rail (4) guide (15) and that is provided for this adjustment, for example a spindle motor or working cylinder or linear drive.
9. Device according to one of claims 1 to 8, characterized in that having the opposite motion of the sliding parts (6) two oppositely directed threaded regions spindle (16) and on the sliding parts (6) in opposite directions unthreaded spindle nuts (17) are provided, where engage the respective threaded portions of the spindle (16), and that the spindle (16) has a single drive motor (7).
are 10. The apparatus according to any one of claims 1 to 9, characterized in coupled that the said gripper bar (4) facing away from the articulation points (10) of the lever (5) having carriages (14) of a respective gripper rail to one another or, in particular connected via a connecting rod and for each gripper rail (4), a single feed drive (8) is provided.
11. Device according to one of claims 1 to 10, characterized in that the at the respective lever (5) engaging arm (11) is movable in a plane which is oblique to the plane in which the movable lever (5) ,
12. Device according to claim 11, characterized in that the / the pivot arms (11) with respect to the plane of movement of the lever (5) obliquely upward or obliquely downward runs independently of whether the plane of movement of the lever (5) horizontally or also diagonally is arranged above or obliquely downwards relative to a horizontal plane.
stored 13. A device according to any one of the preceding claims, characterized in that the drive devices for the gripper rails on vertical supports (21) and / or threaded spindles (20) and up and down movement.
Summary
EP20050739886 2004-05-13 2005-04-22 Device for the stepped displacement of workpieces Active EP1748855B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE200410023525 DE102004023525B4 (en) 2004-05-13 2004-05-13 Apparatus for the stepwise moving of workpieces
PCT/EP2005/004372 WO2005110641A1 (en) 2004-05-13 2005-04-22 Device for the stepped displacement of workpieces

Publications (2)

Publication Number Publication Date
EP1748855A1 true true EP1748855A1 (en) 2007-02-07
EP1748855B1 EP1748855B1 (en) 2008-05-07

Family

ID=34966850

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20050739886 Active EP1748855B1 (en) 2004-05-13 2005-04-22 Device for the stepped displacement of workpieces

Country Status (6)

Country Link
US (1) US7779664B2 (en)
EP (1) EP1748855B1 (en)
CA (1) CA2565890C (en)
DE (2) DE102004023525B4 (en)
ES (1) ES2307178T3 (en)
WO (1) WO2005110641A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007063145B4 (en) * 2007-12-29 2009-12-31 Erdrich Beteiligungs Gmbh Press for forming workpieces
DE102008022994B3 (en) * 2008-05-09 2009-06-04 Erdrich Beteiligungs Gmbh Press having a transfer device for the stepwise displacement of the workpieces and with a gripper rail coupling
DE102011118216B4 (en) 2011-11-11 2013-09-19 Schuler Pressen Gmbh Driving device for a multiaxial transport of work pieces through consecutive processing stations of a processing machine

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61212435A (en) * 1985-03-15 1986-09-20 Toyo Shokuhin Kikai Kk Can transferring device for press forming apparatus
ES2055574T3 (en) * 1990-12-11 1994-08-16 Styner & Bienz Ag Transport arrangement in a press.
DE4304902A1 (en) * 1993-02-18 1994-08-25 Pressen Automation Ges Fuer Feeding device for stepwise material and/or workpiece transport to or in production machines, such as drawing presses
DE4315372C2 (en) * 1993-05-08 1995-03-09 Sander Kg Gmbh & Co Device for step-feeding of workpieces
US5680787A (en) * 1995-10-27 1997-10-28 Rapindex Incorporated Indexing conveyor for a die transfer system
DE19633821A1 (en) * 1996-08-22 1998-06-10 Erfurt Umformtechnik Gmbh Transporting device to take sheet components into transfer press
US5906131A (en) * 1997-01-24 1999-05-25 Rapindex, Inc. Indexing conveyer for a die transfer system having countercyclic vibration damping on the transfer bar
US5899109A (en) * 1998-03-23 1999-05-04 Rapindex Incorporated Indexing conveyor for a die transfer system and method
DE19851745A1 (en) * 1998-11-10 2000-05-11 Schuler Pressen Gmbh & Co Transfer device with combined drive
US6216523B1 (en) * 1999-10-20 2001-04-17 Hms Products Co. Servo-drive for press transfer
DE10009574A1 (en) * 2000-02-29 2001-08-30 Mueller Weingarten Maschf Flexible transport device for presses
DE10206773C1 (en) * 2002-02-19 2003-10-02 Sander Kg Gmbh & Co Apparatus for feeding workpieces having gripper rails
CA2423098A1 (en) * 2003-03-21 2004-09-21 Linear Transfer Systems Ltd. Tilt mechanism for a transfer rail in a press transfer system
US7128195B2 (en) * 2004-03-22 2006-10-31 Linear Transfer Systems Ltd. Workpiece transfer system for stamping press

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2005110641A1 *

Also Published As

Publication number Publication date Type
ES2307178T3 (en) 2008-11-16 grant
CA2565890C (en) 2012-04-10 grant
WO2005110641A1 (en) 2005-11-24 application
EP1748855B1 (en) 2008-05-07 grant
DE102004023525A1 (en) 2005-12-08 application
US7779664B2 (en) 2010-08-24 grant
US20070295052A1 (en) 2007-12-27 application
DE102004023525B4 (en) 2006-07-20 grant
CA2565890A1 (en) 2005-11-24 application
DE502005004012D1 (en) 2008-06-19 grant

Similar Documents

Publication Publication Date Title
US3760956A (en) Industrial robot
US5092731A (en) Container handling apparatus for a refuse collection vehicle
US4890692A (en) Platform elevating apparatus
US5803528A (en) Truck cover
US4540087A (en) Three-dimensional work transfer apparatus
US4995778A (en) Gripping apparatus for transporting a panel of adhesive material
US5520502A (en) Device for transferring a work piece from a first machine to a second machine
US5127695A (en) Apparatus for manipulating a pallet
US5511459A (en) Apparatus for synchronizing linear actuator movement
US5337594A (en) Arrangement at press line
US4411148A (en) Press brake
DE202004012580U1 (en) Folding tool for folding processes comprises adjustable rollers which move linearly to each other
US3349602A (en) Nelson press unloader
US3854614A (en) Log feeding and turning machine
DE4206417A1 (en) Folding Machine
US6474125B1 (en) Hemming machine with dual ball screw drive
US3722254A (en) Material forming apparatus
EP1447155A1 (en) Roller-type hemming tool and method for performing a hemming operation
EP0158722A1 (en) A straight motion device for manipulators
CN101396715A (en) Bidirectional movement vertical type steel-bar automatic bending machine
US5899108A (en) Flexible multi-axis transfer device
US6382400B1 (en) Transport and positioning system
US4706486A (en) Jaw assembly for stretch press
US4495828A (en) Stroke enlarging mechanism
US6457574B1 (en) Device for handling at least one tensioning frame, especially for mounting vehicle shells

Legal Events

Date Code Title Description
17P Request for examination filed

Effective date: 20061030

AK Designated contracting states:

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

DAX Request for extension of the european patent (to any country) deleted
AK Designated contracting states:

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REF Corresponds to:

Ref document number: 502005004012

Country of ref document: DE

Date of ref document: 20080619

Kind code of ref document: P

REG Reference to a national code

Ref country code: PT

Ref legal event code: SC4A

Free format text: AVAILABILITY OF NATIONAL TRANSLATION

Effective date: 20080807

PG25 Lapsed in a contracting state announced via postgrant inform. from nat. office to epo

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080507

PG25 Lapsed in a contracting state announced via postgrant inform. from nat. office to epo

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080507

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080507

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2307178

Country of ref document: ES

Kind code of ref document: T3

PG25 Lapsed in a contracting state announced via postgrant inform. from nat. office to epo

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080507

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

PG25 Lapsed in a contracting state announced via postgrant inform. from nat. office to epo

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080907

PG25 Lapsed in a contracting state announced via postgrant inform. from nat. office to epo

Ref country code: IE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080507

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080507

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080807

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080507

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080507

PG25 Lapsed in a contracting state announced via postgrant inform. from nat. office to epo

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080507

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080507

26N No opposition filed

Effective date: 20090210

PG25 Lapsed in a contracting state announced via postgrant inform. from nat. office to epo

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080807

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080507

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state announced via postgrant inform. from nat. office to epo

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090430

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090430

PG25 Lapsed in a contracting state announced via postgrant inform. from nat. office to epo

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090430

PG25 Lapsed in a contracting state announced via postgrant inform. from nat. office to epo

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090422

PG25 Lapsed in a contracting state announced via postgrant inform. from nat. office to epo

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080808

PG25 Lapsed in a contracting state announced via postgrant inform. from nat. office to epo

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090422

PG25 Lapsed in a contracting state announced via postgrant inform. from nat. office to epo

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20081108

PG25 Lapsed in a contracting state announced via postgrant inform. from nat. office to epo

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080507

PG25 Lapsed in a contracting state announced via postgrant inform. from nat. office to epo

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20080507

PGFP Postgrant: annual fees paid to national office

Ref country code: BE

Payment date: 20120221

Year of fee payment: 8

PGFP Postgrant: annual fees paid to national office

Ref country code: PT

Payment date: 20130206

Year of fee payment: 9

BERE Be: lapsed

Owner name: ERDRICH BETEILIGUNGS G.M.B.H.

Effective date: 20130430

PG25 Lapsed in a contracting state announced via postgrant inform. from nat. office to epo

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130430

REG Reference to a national code

Ref country code: PT

Ref legal event code: MM4A

Free format text: LAPSE DUE TO NON-PAYMENT OF FEES

Effective date: 20141022

PG25 Lapsed in a contracting state announced via postgrant inform. from nat. office to epo

Ref country code: PT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20141022

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 12

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 13

PGFP Postgrant: annual fees paid to national office

Ref country code: FR

Payment date: 20170221

Year of fee payment: 13

PGFP Postgrant: annual fees paid to national office

Ref country code: ES

Payment date: 20170210

Year of fee payment: 13

PGFP Postgrant: annual fees paid to national office

Ref country code: GB

Payment date: 20170420

Year of fee payment: 13

Ref country code: DE

Payment date: 20170508

Year of fee payment: 13

PGFP Postgrant: annual fees paid to national office

Ref country code: IT

Payment date: 20170426

Year of fee payment: 13

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 14