• 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 processing installation (1) comprising a bending press (2), in particular for bending sheet metal (3), with a fixed press bar (4) and a press bar (5) which can be adjusted relative to this press bars (4 , 5) a tool holder (6) is mounted or integrated, and at least one bending tool (7) with a fixing portion for fixing in the tool holder (6). Furthermore, at least one manipulation device (9) for handling bending tools (7) and / or metal sheets (3) or a back stop device (8) for positioning support of metal sheets (3). Furthermore, a cleaning unit (12), which consists of a base body, on which at least one elastic stripping element is attached. In this case, the bending tool (7) of the manipulation device (9) to the cleaning unit (12) is movable and displaceable along the elastic scraper, so that at least a part of the fixing portion during the displacement with the elastic scraper element in contact
    公开号:AT514324A4
    申请号:T504512013
    申请日:2013-07-11
    公开日:2014-12-15
    发明作者:
    申请人:Trumpf Maschinen Austria Gmbh；
    IPC主号:
    专利说明:

    1
    The invention relates to a cleaning unit for a processing plant, in particular bending press, as specified in claim 1.
    The document JP 2004-237286 A discloses a cleaning device for a bending machine. The purpose of this cleaning device is that the lower bending tool, in particular the bending die, of impurities that arise during the bending process, is cleaned. For this purpose, a rotating brush is used, which is attached, for example, to the back stop unit, or to a cleaning manipulator. This rotating brush is moved over the lower bending tool so that the die is freed of impurities over its entire length.
    A disadvantage of the known from JP 2004-237286 A execution is that all contaminants, which are located on the surface of the die, are transported by the Abbürstvorgang directly into the tool holder of the lower press beam or on the lower beam press. As a result, the dirt is locally removed from the workpiece-contacting surface, but passes to another part of the bending machine, where it also affects the function of the bending machine. Furthermore, in this procedure, there is no possibility to clean off the part of the bending tool softening the attachment portion of the bending tool and is in contact with the tool holder of the press bar. Thus, although the surface of the workpiece can be positively influenced by the cleaning of the outer surfaces of the tool, in the case of a tool change but impurities between the contact surfaces of the bending tool and the tool holder 2/22 N2012 / 19100RAT-AT-00 2 set, which a position inaccuracy of the bending tool and thus lead to an inaccuracy in the sheet metal workpiece to be bent.
    The present invention has for its object to increase the quality and accuracy of the bent workpieces to the effect that the bending tool can be clamped positionally accurate at a tool change in any case and the voltage is not affected by impurities. Furthermore, no impurities should be able to reach the surface of the workpiece, where they adversely affect the surface of the workpiece. Furthermore, it is an object of the invention, the bending machine, in particular the bending tools and the tool holder, to protect against any damage due to contamination.
    This object of the invention is achieved by the measures according to claim 1, in particular by a cleaning unit, which consists of a base body, on which at least one elastic stripping element is attached.
    According to the invention, a processing installation is formed, comprising a bending press, in particular for bending sheet metal, with a fixed pressing beam and a pressing beam adjustable relative thereto, to which pressing beam a tool holder is attached or integrated. Furthermore, at least one bending tool with a fixing portion for fixing in the tool holder. Furthermore, at least one manipulation device for handling bending tools and / or sheets or a backgauge device for positioning support of sheets. Furthermore, a cleaning unit, which consists of a base body, on which at least one elastic stripping element is attached. Wherein the bending tool is movable from the manipulation device to the cleaning unit and displaceable along the elastic stripping element, so that at least a part of the attachment section, during the displacement, is in contact with the elastic stripping element.
    An advantage of the design according to the invention is that a cleaning unit is used which is universally applicable and just the fastening section of the bending tool can be cleaned particularly well by this cleaning unit. This is particularly important because contamination of the mounting portion upon re-insertion of the bending tool into the tool holder may cause the contamination to cause a positioning error of the bending tool. It should be noted here that only a small contamination-related positioning error of the bending tool involves a comparatively high angular deviation on the sheet to be bent. In addition, it should be noted that fouling at the attachment portion of the bending tool causes this contamination, when the bending tool is stretched, can be pressed by the tension applied force in the bending tool, whereby permanent damage to the mounting portion of the bending tool can be expected. In the worst case, the contamination also damages the tool holder, as a result of which the requirement for the accuracy of the parts no longer exists and a time-consuming and costly repair is to be expected. Especially in automated processing systems, it does not make sense to provide an operator for cleaning operations in a tool change, but also to automate the cleaning activities. However, since the attachment portion of the bending tool can only be cleaned when the tool is not in the tool holder, there is a possibility to do so efficiently that a cleaning unit is fixedly mounted and the tool is moved toward the cleaning unit.
    Furthermore, it can be expedient that both a part of the fastening section and also further parts of the bending tool are in contact with the elastic stripping element during the displacement. It is advantageous here that, for example, the attachment portion of the bending tool, as well as the workpiece-contacting surface can be freed simultaneously and in one operation from the dirt. For this purpose, the cleaning unit must be designed so that the stripping element, which can be adapted to the respective bending tool to be cleaned, touches this bending tool both on the tool holder and on the workpiece contacting surface. Another characteristic would be, if the elastic wiper so on the clean to be cleaned 4/22 N2012 / 1910ORAT-AT-00 4th
    Tool is adapted that this is almost completely in contact with the tool to be cleaned. Only a recess for the intervention of the manipulation device must still be provided so that the tool can be guided along the cleaning unit. In such an expression, it may be necessary that for each different size of a tool and a separate cleaning unit must be provided.
    Furthermore, it can be provided that the shape of the elastic stripping element in the section which touches the surface to be cleaned, is adapted to the shape of the surface to be cleaned. The advantage here is that thereby the elastic element in the cleaning operation does not have to deform so much, but that can be achieved by adapting to the surface to be cleaned, that even twisted points on the object to be cleaned can be achieved well, and thus freed of dirt can be. Furthermore, this ensures that the elastic wiper element has a longer life, since this is less stressed due to lower to be provided deformations.
    Furthermore, it may be expedient that the elastic stripping element is absorbent, whereby a cleaning and / or preservative agent can be stored in the stripping element and can be delivered to the surface to be cleaned. The advantage here is that thus the bending tool is not only mechanically cleaned, but the cleaning can be supported by a detergent and at the same time a preservation by a preservative is possible. This is particularly advantageous because with a simultaneous preservation of the tool, a further step can be saved. Especially after disassembling the tool from the bending machine and even before storage in the tool storage is an ideal time to preserve the tool and thus protect against corrosion.
    In addition, it can be provided that the processing system includes at least one further cleaning unit, which is movable from the manipulation device to the bending tool or the tool holder, and is movable in contact therewith. It is advantageous here that not only could the fastening section of the bending tool be cleaned by means of this measure, but also that all other surfaces of the bending tool can be cleaned off. The cleaning process is thus not only possible if the bending tool is removed from the tool holder, but also during normal operation of the bending press, or in intermediate breaks. Furthermore, it can be achieved by a mobile cleaning unit that the tool holder can be cleaned.
    Furthermore, it is expedient if the base body of one of the cleaning units has a gripping recess which can be coupled to the manipulation device and / or the backgauge device. The advantage here is that thereby the cleaning units can be handled automatically. Coupling units are used, which are already used for handling bending tools, or stop elements. This allows the machine to be designed economically and very universally applicable.
    In a particular embodiment, it may be provided that the elastic wiper element is removable from the main body and exchangeable. The advantage here is that not have to be replaced by a way to replace the elastic stripping the entire cleaning unit once it has contamination or excessive wear, but that the elastic wiper can be changed, which is subject to excessive wear.
    According to a development it can be provided that one of the cleaning units comprises at least one air nozzle. The advantage here is that it can be achieved by the use of an air nozzle that impurities in the form of larger solids, as well as small dust particles, can be easily blown off already with the air nozzle. Thus, the elastic stripping element is less stressed.
    An embodiment may be advantageous according to which the elastic wiping element has bevelled surfaces with respect to the direction of displacement, as a result of which the elastic wiper element has bevelled surfaces
    Insertion into recesses is facilitated. In this way it can be ensured that the wear of the stripping element can be kept low.
    Furthermore, this avoids that edge regions of the bending tool are insufficiently cleaned.
    According to an advantageous development, it can be provided that the elastic stripping element comprises a section of a sponge-like material. This is particularly advantageous because the sponge-like material, for example, can easily absorb a preservative. Furthermore, it is advantageous in a spongy material that contaminants can be well absorbed. When selecting the spongy material, make sure that a material is used which is not destroyed by sharp edges on the surfaces to be cleaned.
    Furthermore, it can be provided that the elastic stripping element comprises at least one rubber lip. This rubber lip can serve to remove the contaminants well from the surface to be cleaned. The rubber lip itself can then be very well freed from these impurities. Furthermore, it is advantageous that a rubber lip can be made of a material which is very wear-resistant.
    Furthermore, it is advantageous if at least one holder for the second cleaning unit is present. This holder is used to store the cleaning unit when it is not in use. Thus, the position of the second cleaning unit, if not used, is precisely defined, whereby it can be picked up by the manipulating device at any time.
    Furthermore, it is expedient if one of the cleaning units comprises at least one suction device. The advantage here is that this suction suck in large dirt very well, and thus can remove them. By an optimal placement of the suction device thus the surface to be cleaned can be very well pre-cleaned before the elastic scraper element is used. 7/22 N2012 / 191OORAT-AT-00 7
    According to a development it can be provided that one of the cleaning units comprises a translatory or rotary drive for the elastic stripping element or for the entire cleaning unit. It is particularly advantageous here that the cleaning effect can be increased by the translatory or rotatory drive. On the one hand micromotion can be applied, which are high-frequency and thus increase the cleaning effect. On the other hand, the cleaning unit can be rotated, for example, rotationally about its central axis, so as to achieve a good cleaning effect by increasing the relative movements.
    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:
    1 shows a processing plant with a manipulation device and a laterally mounted tool storage with an integrated cleaning unit and a further cleaning unit:
    2 shows a detailed view of the laterally mounted cleaning unit in the labor input, as well as a further cleaning unit in the tool storage:
    3 is a detail view of another cleaning unit:
    4 shows the further cleaning unit in the work on the bending machine:
    Fig. 5 shows another embodiment of a cleaning unit in the form of a rotating brush.
    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 names, wherein the disclosures contained in the entire description can be mutatis mutandis to the same parts with the same reference numerals or component names. Also, the location information chosen in the description, such as top, bottom, side, etc. related to 8/22 N2012 / 19100RAT-AT-00 8 the immediately described and illustrated figure and these position information in a change in position mutatis mutandis to transfer to the new location.
    In Fig. 1, a processing plant 1 comprising a bending press 2, in particular for the bending of sheets 3, with a fixed pressing beam 4 and a relative to this adjustable pressing bar 5 is shown in a perspective view. On the pressing beam 4, 5, a tool holder 6 is integrated, in which the bending tool 7 can be accommodated.
    Furthermore, the bending press 2 comprises a back stop device 8, which serves for the abutment of sheet metal 3. Depending on the machine design, the backgauge device 8 can also be designed in such a way that bending tools can be manipulated or that other tools or devices or even metal sheets 3 can be gripped.
    Also shown is a manipulation device 9, which is used in an automated processing system 1. The manipulation device 9 is designed so that it can remove a sheet 3 to be processed from a feed device or an intermediate storage and then insert it into the bending press 2, so that it is processed there. For several complicated steps, it is also possible that the manipulation device 9 must clamp the sheet 3 to be bent during a processing sequence several times in different ways. Due to these sometimes very complex movements, it is necessary that the manipulation device 9 has a high mobility, which is realized by the use of multiple rotary or linear drives. Also shown is a tool store 10 which is fastened to the bending press 2 and serves for receiving various tools, for example gripping tools 11 of the manipulation device 9. Furthermore, a cleaning unit 12 is integrated into the present tool storage 10 or a further cleaning unit 13 is deposited on the tool storage 10. For storing a further cleaning unit in the tool storage 10, a separate holder 14 is provided. 9/22 N2012 / 19100RAT-AT-00 9
    FIG. 2 shows a perspective detailed view of the tool storage device 10. Also shown is the manipulation device 9, which can grip a bending tool 7 by means of a gripping tool 11 attached to the manipulation device 9. The gripping tool 11 need not grasp the bending tool 7 as shown in this figure, but preferably the gripping tool 11 will grip the bending tool 7 in a precisely defined position and at a precisely defined point. Rather, this representation was chosen to graphically represent a recording of the bending tool 7 by the gripper tool 11 can. Due to the gripping connection, the gripping tool 11 can equip the bending tool 7 on the bending press 2 or move it to a tool store for bending tools 7.
    Furthermore, the bending tool 7 can be moved in the direction of movement 15 by the manipulation device 9 in such a way that the attachment section 16 of the bending tool 7 is pulled through the cleaning unit 12, whereby dirt present on the attachment section 16 is cleaned off. The attachment portion 16 of the bending tool 7 is in this case contacted by an elastic stripping 17 of the cleaning unit 12 and thus cleaned. The cleaning must, as already mentioned in the description of advantages, not be limited to the mounting portion 16 of the bending tool 7, but rather also other parts of the bending tool 7 can be cleaned in one step.
    The elastic stripping element 17 consists in the embodiment shown in Fig. 2 of a sponge-like material 18, which is due to the porous structure ideally formed to receive the stripped dirt particles. In order to achieve a good result of the cleaning, it makes sense that the spongy material 18 is adapted to the contour or to the surface 19 of the workpiece to be cleaned, for example the attachment portion 16 of a bending tool 7. In order to facilitate the insertion of the object to be cleaned, for example the attachment section 16 of a bending tool 7 along the direction of movement 15, it is expedient if beveled surfaces 20 are provided which, as shown here, the elastic strip 10/22 N2012 / 19100RAT- AT-00 10 felement 17 expand such that during movement in the direction of movement 15, the elastic wiper 17 only after a certain immersion depth with the surface 19 to be cleaned of the bending tool 7 comes into contact.
    In order to achieve a good cleaning effect in the surface to be cleaned 19, it makes sense that the cleaning section 21 of the elastic scraper 17 is designed in its contour so that it is compressed during the cleaning process through the surface 19, resulting in a slight contact force of elastic element results on the surface to be cleaned. In a cleaning unit 12, as shown in Fig. 2, this means that a recess 22 in the cleaning section 21 is made smaller than the mounting portion 16 of the bending tool 7. Constructively different, the cleaning unit 12 would have to be designed when in the bending tool 7 has a recess would be provided, which would be cleaned up. In this case, the elastic stripping element 17 would have to be a protruding element, which is made slightly larger than the recess of the bending tool 7 to be cleaned, whereby the above-mentioned elasi-stripping element 17 is compressed. Not explicitly shown in FIG. 2, there are further elements which increase the functionality of the cleaning unit 12 or bring about additional functions. Such an element may for example be an air nozzle 23, which is aligned directly on the surface 19 to be cleaned and thus can remove coarse-grained dirt particles. In combination with this air nozzle 23 or independently mounted, a suction device 24 may be provided, which removes coarser dirt particles from the surface 19 to be cleaned. Furthermore, it is useful to provide a feeder 25, which introduces a cleaning and / or preservative in the elastic stripping 17. These elements can be implemented very well in a stationary cleaning unit 12 as shown here.
    FIG. 3 shows a perspective view of a further cleaning unit 13, which is used for cleaning surfaces 19 to be cleaned on the bending press 2. The further cleaning unit 13 consists of a base body 26 on which the elastic stripping element 17 is applied. The main body 26 has a gripping recess 27 into which a gripper tool 11 can engage to clamp it. It can also be provided in the further cleaning unit that beveled surfaces 20 form the edge region of the elastic stripping element 17 so that it can be easily introduced into a surface 19 to be cleaned, which is in the form of a recess. Also shown is the formation of a rubber lip 28, which is integrated in the elastic stripping element 17 and can be used particularly well for cleaning. Shown here is a combination of sponge-like material 18 and rubber lip 28. Of course, however, each element may be executed individually on a cleaning unit 12 or 13.
    It appears advantageous if the contact surface 29 between the base body 26 and the elastic wiping element 17 forms a bond, which can be easily loosened, so that the elastic wiping element 17 can be removed in the case of coarse contamination and replaced by a new wiping element 17. Instead of bonding, however, for example, a Velcro system may be provided, which serves for fastening of the elastic stripping element 17. However, other connections, such as a positive connection may be provided to secure the elastic stripping element 17 to the base body 26. Also in the further cleaning unit 13 shown here, additional elements, such as an air nozzle 23, a suction device 24 or a feeder 25 may be attached, which fulfill the functions already described.
    FIG. 4 shows a perspective view of a further cleaning unit 13, which is received in the gripping recess 27 by a gripping tool 11 of a manipulation device 9. In this case, the further cleaning unit 13 is guided in a further movement direction 30 over the surface 19 to be cleaned, for example the tool holder 6, so that it is cleaned. In this case, care is again taken that the contour of the elastic stripping element 17 is adapted to the surface 19 to be cleaned so that all possible recesses and protruding elements can be optimally cleaned. Such a further cleaning unit 13 can, of course, not only be moved by a manipulation device 9, but it is also conceivable that a backgauge device 8 is used for the manipulation of this further cleaning unit 13.
    FIG. 5 shows, in a perspective view, a further and optionally independent embodiment of the cleaning unit 12 or the further cleaning unit 13, with the same reference numerals or component designations being used again for the same parts as in the preceding FIGS. 1-4. In order to avoid unnecessary repetition, reference is made to the detailed description in the preceding FIGS. 1-4. Here, a rotating brush head 31 is used to clean off bending tools 7 or other surfaces 19 to be cleaned accordingly. In the illustrated embodiment, the elastic stripping element 17 is in the form of bristles which are attached to the brush head 31. Shown as an additional element is a rotary drive 33, which is used as a rotary drive of the brush head 31.
    The embodiments show possible embodiments of the cleaning units 12 and 13, it being noted at this point that the invention is not limited to the specifically illustrated embodiments thereof, but also various combinations of the individual embodiments are mutually possible and this variation possibility due to the teaching of 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 exemplary embodiments shown and described can also represent independent, inventive or inventive solutions.
    The task underlying the independent inventive solutions can be taken from the description. All statements of value ranges in the present description should be understood to include any and all sub-ranges 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, starting from 13/22 N2012 / 19100RAT-AT-00 13, i. all sub-areas 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. 1-5 can form the subject of independent solutions according to the invention. The relevant objects and solutions according to the invention can be found in the detailed descriptions of these figures.
    For the sake of order, it should finally be pointed out that, for a better understanding of the construction of the processing installation 1 and the cleaning units 12 and 13, these or their components have been shown partly unevenly and / or enlarged and / or reduced in size. 14/22 N2012 / 19100RAT-AT-00 14
    LIST OF REFERENCE NUMBERS
    Processing plant 31 Brushes Bender Bending press 32 Bristles Sheet metal 33 Rotational drive of fixed pressing beams of adjustable pressing beams
    tool holder
    bending tool
    Back gauge device
    manipulation device
    tool storage
    gripping tool
    Cleaning unit further cleaning unit
    bracket
    Direction of movement Fastening section Elastic wiping element Sponge-like material Surface Beveled surfaces Cleaning section Recess Air nozzle
    suction
    feeding
    body
    gripping recess
    rubber lip
    Contact surface further direction of movement 15/22 N2012 / 19100RAT-AT-00
    权利要求:
    Claims (15)
    [1]
    1. Processing plant (1) comprising a bending press (2), in particular for bending sheet metal (3), with a fixed pressing beam (4) and a relative to this adjustable pressing bar (5), to which pressing bars (4,5 ) a tool holder (6) is mounted or integrated, and at least one bending tool (7) with a fixing portion (16) for fixing in the tool holder (6), further at least one manipulation device (9) for handling bending tools (7) and / or Sheet metal (3) or a back stop device (8) for positioning support of sheets (3), further comprising a cleaning unit (12), which consists of a base body (26) on which at least one elastic stripping element (17) is mounted, characterized in that the bending tool (7) from the manipulation device (9) to the cleaning unit (12) movable and along the elastic scraper element (17) is displaceable, so that at least a Tei l of the mounting portion (16) is in contact with the elastic scraper element (17) during the displacement.
    [2]
    2. Processing plant according to claim 1, characterized in that both a part of the fastening portion (16) and further parts of the bending tool (7) during the displacement with the elastic scraper element (17) are in contact.
    [3]
    3. Processing plant according to claim 1 or 2, characterized in that the shape of the elastic stripping element (17) in the section which touches a surface to be cleaned (19) is adapted to the shape of the surface to be cleaned (19).
    [4]
    4. Processing plant according to one of the preceding claims, characterized in that the elastic stripping element (17) is absorbent, whereby a cleaning and / or preservative in the elastic scraping fabe (17) storable storable 16/22 N2012 / 1910ORAT-AT-00 is and on the surface to be cleaned (19) can be issued.
    [5]
    5. Processing plant according to one of the preceding claims, characterized in that the processing system includes at least one further cleaning unit (13) which is movable from the manipulation device (9) to the bending tool (7) or the tool holder (6), and sliding along these is.
    [6]
    6. Processing plant according to one of the preceding claims, characterized in that the base body (26) of the cleaning units (12,13) has a gripping recess (27) which is coupled to the manipulation device (9) and / or the backgauge device (8) ,
    [7]
    7. Processing plant according to one of the preceding claims, characterized in that the elastic stripping element (17) from the base body (26) is removable and replaceable.
    [8]
    8. Processing plant according to one of the preceding claims, characterized in that one of the cleaning units (12,13) comprises at least one air nozzle (23).
    [9]
    9. Processing plant according to one of the preceding claims, characterized in that the elastic stripping element (17) to the displacement direction beveled surfaces (20), whereby the insertion is facilitated in recesses.
    [10]
    10. Processing installation according to one of the preceding claims, characterized in that the elastic stripping element (17) comprises a portion of a sponge-like material (18). 17/22 N2012 / 19100RAT-AT-00 17
    [11]
    11. Processing plant according to one of the preceding claims, characterized in that the elastic stripping element (17) comprises at least one rubber lip (28).
    [12]
    12. Processing plant according to claim 4, characterized in that at least one holder (14) for the further cleaning unit (13) is present.
    [13]
    13. Processing plant according to one of the preceding claims, characterized in that one of the cleaning units (12,13) comprises at least one suction device (24).
    [14]
    14. Processing plant according to one of the preceding claims, characterized in that one of the cleaning units (12,13) comprises a translatory or rotary drive for the elastic stripping element (17) or for the entire cleaning unit (12,13).
    [15]
    15. Processing installation according to one of the preceding claims, characterized in that one of the cleaning units (12,13) comprises a feed device (25) for a cleaning and / or preservative. 18/22 N2012 / 191OORAT -AT-00
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    同族专利:
    公开号 | 公开日
    EP3019288B1|2017-04-26|
    EP3019288A1|2016-05-18|
    AT514324B1|2014-12-15|
    WO2015003199A1|2015-01-15|
    引用文献:
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    AT504512013A|AT514324B1|2013-07-11|2013-07-11|Cleaning device for a bending machine|AT504512013A| AT514324B1|2013-07-11|2013-07-11|Cleaning device for a bending machine|
    PCT/AT2014/050156| WO2015003199A1|2013-07-11|2014-07-10|Cleaning device for a bending machine|
    EP14757829.8A| EP3019288B1|2013-07-11|2014-07-10|Cleaning device for a bending machine|
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