• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a production plant (1) comprising a bending press (3), and at least one back stop unit (31) having a base frame (33) and at least one stop element (32) attached thereto, the base frame (33) of the back stop unit (31 ) by means of an adjusting drive (34), along an x-axis (36), relative to the machine frame (7) is adjustable. The at least one stop element (32) can be adjusted manually in a set-up position of the base frame (33) in a z-axis (38) along a guide track (39) relative to the base frame (33) of the back stop unit (31). The at least one stop element (32) is further fixable in its position on the guide track (39) by a clamping device (40), wherein the clamping device (40) is releasable by an actuating device. By approaching the base frame (33) to the set-up position, an actuating element of the actuating device can be converted from an initial position into an actuating position by interaction with a pressure surface, as a result of which the actuating device can be activated.
    公开号:AT514930A4
    申请号:T50799/2013
    申请日:2013-12-04
    公开日:2015-05-15
    发明作者:
    申请人:Trumpf Maschinen Austria Gmbh；
    IPC主号:
    专利说明:

    The invention relates to a production plant with a bending press, as specified in claim 1.
    Hinteranschlagage units are known from the prior art on which stopper elements, which are mounted on a base frame, can be manually adjusted in a direction parallel to the longitudinal direction. The Anschlagele¬mente are fixed in the operating state by a pneumatic pressurization by means of a clamping element. If the pneumatic pressurization is removed, then the stop elements can be moved. The required compressed air is in this case made available by a compressed air network to which the bending machine is connected.
    The known from the prior art embodiment has the disadvantage that a compressed air network is needed to fix the stop elements can. Be¬sonders in individual machine designs can be provided that anywhere in the manufacturing plant nowhere a compressed air connection is required .This would have to supply the clamping of the stop elements with compressed air own compressed air network at the site of the manufacturing installation.
    The present invention has for its object to provide an improved system for clamping the stop elements.
    This object of the invention is solved by the features according to claim 1.
    According to the invention, a production plant, in particular for the free bending of workpieces to be produced from sheet metal, comprising a bending press, in particular a press brake, with a machine frame and pressing beam as well as Werkzeugaufnahmen arranged in Längs¬ausrichtung the press beams, and at least one on the Rear abutment unit arranged on the rear side of the pressing beam with a base frame and at least one stop element attached thereto for the purpose of positioning the workpiece to be machined. In this case, the base frame of the backgauge unit is adjustable relative to the machine position by means of a displacement drive, along a horizontally aligned x-axis which is normally aligned with the longitudinal alignment of the pressing bars. The at least one stop element is manually adjustable in a set-up position of the base frame in a horizontally oriented and normally x-axis z-axis, along a guideway, relative to the base frame of the backgauge unit. The at least one stop element is further fi¬xierbar in its position on the guideway by a clamping device, the clamping device by an actuator is lösbar.Durch approach of the base frame to the Einrichtstellung an Betätigungs¬ element of the actuator by interacting with a Druckflä¬che, from a basic position into an operating position, whereby the actuating device can be activated.
    An advantage of the embodiment according to the invention is that the clamping of the stop elements is automatically released when starting the set-up position by a Betä¬ tigungselement. By this measure it can be achieved that the clamping device of the stop elements does not have to be controlled by the machine control. Thus, the clamping device of the Anschlagele¬mente does not have to be connected to the machine control. Furthermore, it can be achieved by the measures according to the invention that the energy supply of the clamping device for releasing or clamping the stop fingers is independent of external energy supply sources. This results from the fact that the energy to be applied for releasing the clamping device can be generated directly in the actuation device. In this case, the energy to be applied for releasing the clamping connection can be obtained by the movement of the base frame of the rear stop unit relative to the machine frame. Thus, the adjustment of the base frame provides the energy to release the Klemmvorrich¬, whereby the manufacturing plant can be operated more economically.
    Furthermore, it can be provided that the actuating device comprises a liquid or gaseous active medium for force transmission, and the active medium, upon activation of the formed in the form of a cylinder actuator, mit¬tels a line to the clamping device is conductive. The advantage here is that by means of a liquid or gaseous active medium, the force can be easily transferred from Betä¬ tigungselement to the clamping device, as a Pneuma¬tik- or hydraulic line is easy to install. Furthermore, there are already Ausführun¬gen in which manually adjustable stop elements are clamped by the use of compressed air. These stop elements can thus also be used for the use in such a running manufacturing plant, herehere no external compressed air network must be provided in order to solve the Klemmvorrich¬. Furthermore, the embodiment of the actuator in the form of a cylinder has the advantage that such a cylinder can be referred to as a standard element, and thus is inexpensive to purchase, and further years of experience in dealing with such cylinders, these are less error prone.
    In an alternative, it can be provided that the actuating device comprises a liquid or gaseous active medium for transmitting power, and the active medium, upon activation of the actuating element in the form of a pressure bellows, can be conducted by means of a line to the clamping device. The advantage here is that by means of a liquid or gaseous active medium, the power can be easily transferred from the actuator to the clamping device, as a pneumatic or hydraulic line is easy to install. Further, there are designs in which manually adjustable stop members are clamped by the use of compressed air. These stop elements can thus also be used for use in such a manufacturing plant, in which case no external compressed air network must be provided in order to release the clamping device. Furthermore, the embodiment of the Betätigungs¬elementes in the form of a pressure bellows has the advantage that it can be individually designed, and thus can be adapted in size to the requirements and space of such a production line or bending machine.
    Furthermore, it may be expedient if the pressure bellows is arranged between two base plates, wherein one of the two base plates is adjustable relative to the second base plate and guided by guide elements. It is advantageous here that the pressure bar is guided and stabilized by the two base plates, or by the guiding elements. Furthermore, it is characterized by the fact that it is arranged between the two base plates, protected from environmental influences.
    Furthermore, it can be provided that the actuating device comprises an overpressure valve. The advantage here is that the actuator, as well as the clamping device can not be destroyed by overpressure, for example, by too large Betäti¬gungsweg. Thus, the cylinder, or the pressure bellows can be dimensioned larger than it is necessary, so to speak, a reserve are taken into account, wherein the excess amount of air can be easily abge¬ performed. In other words, it can thus be achieved that a complete opening of the clamping device already takes place before the actuating element has been transferred completely from the basic position into its actuating position. In conjunction with this, a release of the clamping device can be achieved before the base frame of the back-stop unit has been completely moved into the set-up position.
    Furthermore, it may be expedient that the actuating device comprises a Ansaug¬, through which fresh air can be sucked. It is advantageous in such a suction valve, that the escaped through the pressure relief valve Luftmen¬ge, can be added to the basic position in recovery of the actuating element again simply.
    Furthermore, it can be provided that the actuating element is attached to the stationary machine frame, and the pressure surface on the movable base frame of Hinter¬ stop unit. It is advantageous that the Betätigungsele¬ment does not have to be moved, and thus the inertia of the Betätigungs¬ element, or the actuator has no negative impact on the Dy¬namik the bending machine. Furthermore, it is easily possible in space on the machine frame to mount the actuating element or the actuating device.
    Alternatively, it can be provided that the pressure surface on the stationary machine frame, and the actuating element is mounted on the movable base of the rear stop unit. In this case, it is advantageous that the lines can transfer the actuating force from the actuating element to the clamping device, largely rigid, since the Betätigungs¬element is moved with the base frame. As a result, there is also a reduced mechanical wear on the pipes.
    Furthermore, it may be expedient that the actuating element is connected by means of a mechanical transmission means with the clamping device. An advantage of a mechanical transmission means is that it can be constructed in a simplified manner, wherein no pressure-carrying parts, as well as no seals, have to be used.
    Furthermore, it can be provided that the mechanical transmission means comprises a cable pull. An advantage of using a cable is that it can be flexibly guided by the actuating element to the clamping device.
    Alternatively, it may be provided that the mechanical transmission means comprises a linkage. The advantage here is that a linkage can be made very robust and cost-effective. This advantage can be particularly utilized when the actuator is located near the clamping device.
    Finally, it can be provided that the actuating element and the Druckflä¬che are positioned to each other so that the stop elements are in the Einrichtstel¬lung the Hinteranschlageinheit so performed between the tool holders that they at least partially in the operator side of the Biegepresser. The advantage here is that the operator is not between the
    Must pass through tool holders in order to adjust the stop elements. As a result, the machine safety is increased because the potential Sicherheit¬heits risk of crushing between the tool holders is reduced.
    For a better understanding of the invention, this will be explained in more detail with reference to the following figures.
    In each case, in a highly simplified, schematic representation:
    Fig. 1 is a front view of a production line with a bending press;
    2 shows a perspective view of a production plant with a bending press and a back stop unit;
    Fig. 3 is a side view of a manufacturing plant with a bending press and backgauge unit;
    4 a schematic representation of an actuating device with a liquid or gaseous active medium;
    Fig. 5 is a schematic representation of an actuator with a lever system as a mechanism of action.
    By way of introduction, it should be noted that in the differently described embodiments, the same parts are provided with the same reference numerals or the same component designations, wherein the disclosures contained in the entire description apply mutatis mutandis to the same parts with the same reference numerals. same component names can be transferred. Also, the location information chosen in the description, such as up, down, laterally, etc. related to the directly described and illustrated figure and these conditions are to be transferred in a change in position mutatis mutandis to the new situation.
    FIGS. 1 to 5 show a production plant 1 for the free bending of workpieces 2 which produce sheet metal, as well as variants of a possible construction of such a production plant 1 in a schematically simplified representation.
    The production plant 1 comprises a bending press 3, in particular a press brake, for producing the workpieces 2 or workpieces between relatively adjustable bending tools 4, such as bending punch 5 and bending die 6. The bending punch 5 can also be used as an upper tool and the bending die 6 also as Lower tool are called.
    A machine frame 7 of the bending press 3 comprises, for example, a bottom plate 8, on which vertically upwardly spaced, spaced apart in the transverse direction and can be arranged parallel to each other aligned side cheeks 9,10. Die¬se are preferably connected by a solid, for example, formed from a sheet metal part cross member 11 at their distance from the bottom plate 8 Endbe¬reichen each other.
    The side cheeks 9, 10 may be formed approximately C-shaped to form a free space for the forming of the workpiece 2, wherein a fixed, insbeson¬dere on the bottom plate 8 upstanding, press bar 13 may be attached to front end faces 12von bottom legs of the side cheeks , Die¬ser press bar 13 may also be referred to as a table bar. At legs of front end faces 14 that are remote from the base plate 8, a press bar 13 that forms the table bar can be guided in linear guides 15 by a relatively adjustable further pressing bar 16, in particular a pressure bar. On opposite, parallel to each other extending end faces 17,18 of the two pressing bars 13,16 Werkzeugaufnahmen19, 20 arranged for assembly with the bending tools 4 and be trained.
    The bending press 3 shown has, as drive arrangement 21 for the adjustable pressure bar 16, namely the pressure bar, at least one, here two drive means 22, which are e.g. are fed with electrical energy from a power grid 23 and additionally can be line connected to a control device 24. By way of example, the operation of the bending press 3 is controlled via a line-connected input terminal 25 connected to the control device 24.
    The drive means 22 may be e.g. are electromotive Spindeltriebe26 act, as they are well known, of which adjusting means 27 for a re¬versible adjusting movement of the pressure bar formed by the upper Pressbalken 16 are connected to this, for example, drive connected. Irrespective of this, it would also be possible to form the drive means 22 by means of hydraulically and / or pneumatically actuatable actuating means. It can find cylinder-piston arrangements application. However, other drive means, such as e.g. Eccentric drives, toggle lever drives, rack drives, etc. conceivable. All of the above-mentioned features or individual features of the Figu¬renbeschreibung are called to describe an exemplary manufacturing plant 1 or bending press 3, which can be made in the essential to the invention, following parts of the description. All described individual features are therefore not necessarily required for the embodiment according to the invention and can be omitted or replaced by other features in order to obtain a functioning bending press 3.
    Further details required for the operation of such a bending press 3, such as safety devices, control and measuring devices, are omitted from the description to avoid unnecessary length of description.
    Furthermore, the manufacturing plant 1 may also include a manipulator not shown here in detail, which of a supply stack of deformable or. abzukantenden sheets takes at least a piece of it and spends in the working area or the operating side of the bending press 3.
    Furthermore, it is shown in simplified form here that the bending tools 4, in particular the bending punch 5 and / or the bending die 6, can each have their own recesses 28, 29 for manipulating the same.
    As can now be better seen in FIG. 2, the bending press 3 comprises a rear stop unit 31, which is arranged on a rear side 30 of the pressing bars 13, 16. In this case, the rear side 30 of the pressing bars 13, 16 is the side of the bending press 3 opposite the operating side. The operating side is here understood to mean that region on the bending press 3 from which the feeding and handling of the metal sheets to be formed to the finished workpiece 2 takes place and to which the input terminal 25 can be arranged.
    The machine frame 7, in particular its side cheeks 9, 10 extends starting from the operating side towards the rear side 30 of the machine position 7, which is referred to below as depth or depth extension of the bending press 3, in particular of the machine frame 7. The lateral cheeks 9, 10 of the machine frame 7, which are spaced apart here in the transverse direction of the bending press 3, form a width of the bending press 3 or of the machine frame 7, the pressing bars 13, 16 being in the direction of the width of the machine frame 7 arranged thereon or trained Werkzeugaufnahmen19, 20 extend.
    Between the side cheeks 9, 10 and on the rear side 30 of the pressing bars 13, 16, at least one but preferably several rear stopper units 31 are provided or arranged. Such backgauge units 31 are known in the art and, to avoid unnecessarily prolonging the description, a more detailed description is omitted here.
    The back stop unit 31 comprises at least one stop element 32, which serves to position the sheet to be processed on the rear side 30 of the press bars 13, 16. The stop elements 32 are attached to a base frame 33, which is part of the back stop unit 31.
    The base frame 33 is adjustable relative to the machine frame 7 by means of an adjusting drive 34, along a horizontally oriented and normal to the longitudinal direction 35 of the pressing bars 13,16 x-axis. The Grundge¬stell 33 can be mounted here by means of a guide assembly 37 on the machine frame 7. Furthermore, it is also conceivable that the guide assembly 37 is angeord¬net directly to the bottom plate 8 or on the installation surface of the bending press 3. The adjusting drive 34 can be designed, for example, in the form of a recirculating ball spindle or in the form of a rack and pinion arrangement. Furthermore, linear motors and the like as drives are also conceivable for the adjusting drive 34.
    The stop element 32 is adjustable relative to the machine frame 7 by the above drive arrangement together with the basic frame 33. This serves to ensure that the sheet to be deformed, for example, can be slid sojweit lying on the bending die 6 in the direction of the depth of the machine frame 7 until the displacement is limited by the first prepositioned stop member 32. In this state, an end edge of the sheet to be bent mostly comes into abutment against a stop element 32, which is usually designed as a stop finger. Depending on the workpiece to be machined, the stop element 32 is positioned in predefined locations and can be adjusted at any time and in any direction by means of the adjusting drive 34.
    Furthermore, the at least one stop element 32 is arranged in a horizontally aligned and normally on the x-axis 36 standing z-axis 38, on a Führungsbahn 39. It is provided that the stop elements 32 along the guide track 39 are manually displaceable. In operation, the stop members 32 are secured against unwanted displacement along the z-axis 38 by a clamping device 40. If, however, the base frame 33 is displaced by means of the adjustment drive 34 in the direction of a set-up position 41 shown in FIG. 3, the clamping device 40 is released by an actuation device 42.
    The set-up position 41 is that position of the rear stop unit 31, in particular of the base frame 33, in which the clamping of the stop elements 32 is released and these can thus be displaced manually along the Z axis 38.
    This set-up position 41 is determined in principle by the machine manufacturer and is therefore a predetermined position. Since the set-up position 41 depends only on the programming of the machine control and the positioning of the actuation device 42, it can however be adapted to the customer's wishes at any time and thus be redefined at any time.
    In an advantageous embodiment variant, the set-up position 41 is determined such that the back-stop unit 31, in particular the base frame 33, is displaced as far as possible in the direction of the first pressing bar 13. This results in the advantage that the stop elements 32 protrude between the bending tools 4, in particular bending punch 5 and bending die 6 in the direction of the operator side. Thus, the machine operator can easily grasp the stop elements 32 with his hands and move them manually. In addition to this ergonomic advantage, there is the further advantage that the machine operator does not have to grasp between the bending die 5 and the bending die 6, and thus a potential risk of damage is minimized.
    The mechanism for releasing the actuator 42 will be explained with the aid of the schematic illustrations of FIGS. 3 to 5. FIG. 3 shows a side view of a construction of a bending press 3 with a back stop unit 31, as well as an actuating device 42, in a simplified manner. FIG. 4 shows a schematic structure of an actuating device 42 with a liquid or gaseous active medium. In Fig. 5 is shown a schematic structure of an actuator 42 with a lever system as an effective mechanism.
    As can be seen in FIG. 3, it may be provided that an actuating element 43 of the actuating device 42 is fastened to the stationary machine frame 7 or to another stationary component of the production system 1. The mode of operation or the functional sequence for adjusting the stop elements 32 will be explained and described below with reference to this exemplary embodiment.
    In a further embodiment, it is also possible for the actuation element 43 to be fastened to the movable back stop unit 31, in particular to the base frame 33. This embodiment is for brevity not shown in a separate figure, since the means will be like an actuator 43 to be attached to the base frame 33, are obvious to the expert. Also, the position and the position of the attachment of the actuator 43 is obvious.
    These two embodiments described are constructed on the basis of a hydraulic or pneumatic system, wherein an active medium 44 is used for force transmission between actuating element 43 and clamping device 40.
    In another embodiment variable, which is shown only schematically in FIG. 5, it is also conceivable that, instead of the active medium 44, a mechanical force transmission is carried out by solid bodies, in particular linkages or a lever arrangement or the use of a cable pull.
    The sequence for releasing the clamping device 40 and thus for manually adjusting the stop elements 32 functions as follows. The Hinteranschlageinheit31, in particular the base frame 33 is moved by means of the adjustment 34 in the direction Einrichtstellung 41. Shortly before the base frame 33 reaches the set-up position 41, in other words when the base frame 33 is spaced at a certain distance from the set-up position 41, a pressure-coupled surface 45, which is coupled with the base frame 33, strikes the actuating element 43 of the actuating device 42 on the Actu¬ gungselement 43 by the pressure surface 45 exerted a force.
    In the schematic representation in FIG. 3, the pressure surface 45 is attached to a separate pressure element 46. However, it is also conceivable that the pressure surface 45 is formed, for example, by one of the end faces of the back stop unit 31, in particular of the base frame 33.
    Now, if the actuator 42 is contacted by the pressure surface 45 and thus exerted by the pressure surface 45, a force on the actuating element 43, then each further movement of the base frame 33 in a movement Ver movement of the actuating element 43 is converted. The actuating element 43 can now, as shown in this exemplary embodiment, pressurize the active medium 44, this being forwarded by means of a pressure hose 47 to the clamping device 40 in order to release the clamping device 40. Thus, it can be stated that the adjusting drive 34 can be used for adjusting the base frame 33 at the same time for the force application to release the clamping device 40.
    Referring to the schematic illustration in Fig. 4, the mechanism for releasing the clamping device 40 will now be more specifically described. In the unactuated state, that is, without application of force by the pressure surface 45, the actuating element 43 is in a basic position 48. The holding or displacement of the actuating element 43 into the basic position 48 can be accomplished by means of a spring element 49.
    If now the base frame 33 of the rear stop unit 31, in particular the pressure surface 45, is displaced in the direction of the set-up position 41, then the actuating element 43 is displaced into an actuating position 50. Thereby, in this embodiment, the pressure bellows 51 is compressed, whereby the Wirkmedium 44 brought to pressure or is displaced by the pressure hose 47 in the direction of clamping device 40. The pressure bellows 51 is arranged in this embodiment between two base plates 52, wherein one of the two base plates 52 is connected to the machine frame 7 and the second of the base plates 52 is mounted relative to the first base plate 52 on Führungsele¬menten 53.
    Instead of the described pressure bellows 51 or the structure required for this purpose, it is also possible for a commercially available pneumatic or hydraulic cylinder to be used as the actuating element 43. Such a cylinder can be installed as a standard part in the manufacturing plant 1.
    The active medium 44, which has been introduced into the clamping device 40 by the pressure hose 47, is used to release the fixing of the stop elements 32 by the clamping device 40.
    In the illustrated embodiment, the clamping device 40 comprises a clamping piston 54, which is pressed by means of a further spring element 55 on a clamping surface 56 of the stop element 32. As a result, a driving force can arise, which holds the stop element 32 in position.
    As an alternative to a frictional fixing by the frictional force, it is also possible that a micro-toothing is formed on the clamping piston 54 and on the clamping surface 56, resulting in a positive connection. If now the active medium 44 is introduced into the clamping device 40, it presses the clamping piston 54 against the biasing force of the further spring element 55, whereby the clamping connection between clamping piston 54 and Anschla¬gelement 32 is released. Thereby, the stopper member 32 is manually displaceable along the guide track 39.
    If now the actuating element 43 is displaced from the actuating position 50 back into the basic position 48, the active medium 44 can flow back into the pressure bellows 51, whereby the clamping piston 54 is again brought into engagement with the stop element 32 by the application of force to the further spring element 55 and this is thus secured against displacement.
    The configuration or arrangement of the clamping device 40 is not limited to the illustrated embodiment, but rather it is possible that, depending on the machine type, a different type of embodiment of the clamping device 40 is provided. It is only important that the clamping device 40 is biased or is acted upon by a spring element, so that when the Betätigungs¬ element 43 is in its normal position 48, the Hinteranschlageinheit 31 is fixed gegegen displacement along the z-axis.
    FIG. 5 shows a further and optionally separate embodiment of the construction of the actuating device 42, again using the same reference numerals or component designations for the same parts as in the preceding FIGS. 1 to 4. To avoid unnecessary repetition, reference is made to the detailed description in the preceding Figs.
    FIG. 5 shows a further exemplary embodiment in which the clamping device 40 is released by means of a lever arrangement. The Ausfüh¬rungsvariante described in this figure is very simple in construction and can thus be produced without great Fertigungs¬aufwand, whereby the manufacturing cost of such an embodiment can be kept low. In this exemplary embodiment, the actuating element 43 is arranged directly in the guide track 39, the pressure surface 45 is a surface of the first pressing bar 13. If the rear stop unit 31 is then displaced in the direction of the first pressing bar 13, the pressure surface 45 con¬ tacts the actuating element 43 Basic position 48 moved to its operating position 50. By the displacement of the actuating element 43, the clamping piston 54 is brought out of engagement with the stop element 32 via a contact surface 59.
    All other mechanisms of the actuator 42 and clamping device 40 are analogous to the figure description of FIG. 4 and will not be further described here for the sake of brevity.
    The exemplary embodiments show possible embodiments of the manufacturing plant 1, wherein it should be noted at this point that the invention is not restricted to the specific embodiments of the same, but rather also various combinations of the individual embodiments are possible with each other and this possibility of variation due to Teaching technical acting by objective invention in the skill of those working in this technical field is the expert.
    Furthermore, individual features or combinations of features from the different embodiments shown and described can also represent solutions that are inventive, inventive or inventive.
    The problem underlying the independent inventive solutions can be taken from the description. All statements on ranges of values in the description of the subject should be understood to include any and all subsections thereof, e.g. the indication 1 to 10 should be understood to mean that all subregions, starting from the lower limit 1 and the upper limit 10, are included, i. all subregions begin with a lower limit of 1 or greater and end at an upper limit of 10 or less, e.g. 1 to 1.7, or 3.2 to 8.1, or 5.5 to 10.
    Above all, the individual embodiments shown in FIGS. 1, 2, 3, 4 and 5 can form the subject of independent solutions according to the invention. The related objects and solutions of the present invention can be found in the detailed descriptions of these figures.
    For the sake of order, it should finally be pointed out that in order to better understand the construction of the production plant 1, these or their constituent parts have been shown to be out of scale and / or enlarged and / or reduced in size.
    REFERENCE SIGNS LIST 1 Production plant 31 Back stop unit 2 Workpiece 32 Stop element 3 Bending press 33 Base frame 4 Bending tool 34 Adjusting drive 5 Bending punch 35 Longitudinal alignment 6 Bending die 36 x-axis 7 Machine frame 37 Guide arrangement 8 Base plate 38 Z-axis 9 Sidewall 39 Guideway 10 Sidewall 40 Clamping device 11 Transverse dressing 41 Set-up position 12 Front end face 42 actuating device 13 first pressing bar 43 actuating element 14 front end face 44 active medium 15 linear guide 45 pressure surface 16 second pressing bar 46 pressure element 17 end face 47 pressure hose 18 end face 48 basic position 19 first tool holder 49 spring element 20 second tool holder 50 actuating position 21 drive arrangement 51 pressure bellows 22 drive means 52 base plate 23 energy network 53 Guide element 24 Control device 54 Clamping piston 25 Input terminal 55 Further spring element 26 Spindle drive 56 Clamping surface 27 Adjustment means 57 Relief valve 28 Recess 58 suction valve 29 recess 59 contact surface 30 back
    权利要求:
    Claims (13)
    [1]
    1. Production plant (1), in particular for the bending of workpieces (2) to be produced from sheet metal, comprising a bending press (3), in particular bench press, with a machine frame (7) and pressing beams (13, 16) and in longitudinal orientation (35) of the pressing beams (13, 16) arranged tool holders (19, 20), and at least one back stop unit (31) arranged on the rear side (30) of the press bars (13, 16) with a base position (33) and at least one on this attached stop element (32) for positioning the workpiece to be machined (2), wherein the base frame (33) of the back stop unit (31) by means of a Verstellantriebes (34), along a horizontally oriented and normal to the longitudinal direction (35) of the press bars (13, 16), relative to the machine frame (7) is adjustable, and the at least one stop element (32) in a Einrichtstel¬lung (41) of the base frame (33) manually in a horizontally oriented and normal on the x-axis (36) standing z-axis (38) along a guide track (39) relative to the base frame (33) of the Hinteranschlageinheit (31) is adjustable, wherein the at least one stop element (32) in its Position on the Füh¬rungsbahn (39) by a clamping device (40) is fixable, wherein the clamping device (40) by an actuating device (42) is detachable, characterized ge indicates that by approaching the base frame (33) to the Einrichtstel¬lung (41) an actuating element (43) of the actuating device (42) by Zu¬sammenwirken with a pressure surface (45), from a basic position (48) into an actuating position (50) can be transferred, whereby the actuating device (42) is activated.
    [2]
    Production plant according to Claim 1, characterized in that the actuating device (42) comprises a liquid or gaseous active medium (44) for transmitting force, and the active medium (44), by activation of the actuator (43) in the form of a cylinder, by means of a line to the clamping device ( 40) is conductive.
    [3]
    Production plant according to claim 1, characterized in that the actuating device (42) comprises a liquid or gaseous active medium (44) for force transmission, and the active medium (44), upon activation of the actuating element (43) in the form of a pressure bellows (51) Lei¬tung to the clamping device (40) is conductive
    [4]
    Production plant according to claim 3, characterized in that the pressure bellows (51) is arranged between two base plates (52), one of the two base plates (52) being adjustable relative to the second base plate (52) and guided by guide elements (53).
    [5]
    5. Production plant according to one of the preceding claims, characterized in that the actuating device (42) comprises a pressure relief valve (57).
    [6]
    6. Production plant according to one of the preceding claims, characterized in that the actuating device (42) comprises a suction valve (58) through which fresh air can be sucked.
    [7]
    7. Production plant according to one of the preceding claims, characterized in that the actuating element (43) on the stationary Maschinen¬gestell (7), and the pressure surface (45) on the movable base frame (33) of the Hin¬teranschlageinheit (31) is mounted.
    [8]
    8. Production line according to one of claims 1 to 6, characterized gekenn¬zeichnet that the pressure surface (45) on the stationary machine frame (7), and the actuating element (43) is mounted on the movable base frame (33) of Hinteran¬schlageinheit (31).
    [9]
    9. Production system according to one of the preceding claims, characterized in that the actuating device (42) comprises at least one Federele¬ element (49), by which the actuating element (43) in its basic position (48) can be reset.
    [10]
    Production plant according to one of claims 1 or 7 to 9, characterized in that the actuating element (43) is connected to the clamping device (40) by means of a mechanical transmission means.
    [11]
    Production plant according to claim 10, characterized in that the mechanical transmission means comprise a cable.
    [12]
    A manufacturing plant according to claim 10, characterized in that the mechanical transmission means comprises a linkage.
    [13]
    13. Production plant according to one of the preceding claims, characterized in that the actuating element (43) and the pressure surface (45) are positioned so that the stop elements (32) in the Einrichtstel¬lung (41) of the back stop unit (31) between the tool holders (19, 20) are made to project at least partially into the operator's side of the bending press (3).
    类似技术:
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    同族专利:
    公开号 | 公开日
    EP2881188A1|2015-06-10|
    AT514930B1|2015-05-15|
    EP2881188B1|2016-07-13|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    EP0650782A1|1993-10-08|1995-05-03|Trumpf GmbH & Co|Press brake|
    EP1210995A1|2000-12-04|2002-06-05|Trumpf GmbH & Co. KG|Machine for processing workpieces, in particular metal sheets, with at least a bending station and a joining device|
    WO2012016252A1|2010-08-05|2012-02-09|Trumpf Maschinen Austria Gmbh & Co. Kg|Bending press with a workpiece positioning device and an operating method|
    WO2012119175A1|2011-03-07|2012-09-13|Trumpf Maschinen Austria Gmbh & Co. Kg.|Method for positioning a workpiece at a press brake|
    WO2012151601A1|2011-05-10|2012-11-15|Trumpf Maschinen Austria Gmbh & Co. Kg.|Manufacturing plant having a tool-changing system|CN107537892A|2016-06-29|2018-01-05|张家港市五湖新材料技术开发有限公司|Mobile work platform|JP4393615B2|1999-03-12|2010-01-06|株式会社アマダ|Workpiece positioning abutment device integrated with follower|
    US6938454B2|2002-05-13|2005-09-06|Trumpf Maschinen Austria Gmbh & Co. Kg.|Production device, especially a bending press, and method for operating said production device|
    JP2004195466A|2002-12-16|2004-07-15|Amada Co Ltd|Device for positioning work|CN106391775B|2016-11-25|2018-04-24|马鞍山市中元机床制造有限公司|A kind of bender|
    CN107350312A|2017-09-12|2017-11-17|上海恺希机器人有限公司|Block mechanism and bender|
    CN108311590A|2018-02-06|2018-07-24|江苏江海机床集团有限公司|A kind of numerical control bender|
    CN111229883A|2020-03-04|2020-06-05|胡见见|Plate bending machine|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA50799/2013A|AT514930B1|2013-12-04|2013-12-04|Backgauge unit for bending machine|ATA50799/2013A| AT514930B1|2013-12-04|2013-12-04|Backgauge unit for bending machine|
    EP14196009.6A| EP2881188B1|2013-12-04|2014-12-03|Backgauge for a bending machine|
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