• 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 is concerned with improvements in the art of tensioning workpieces, in particular brush bodies (2). To simplify the manufacture, assembly and handling of workpiece clamping devices (1), a workpiece clamping device (1) is provided with a guide frame (3), at least one clamping element (4) displaceably arranged thereon and with at least one workpiece holder movably mounted on the guide frame (3) (5), which are produced in a common generative manufacturing process as a non-removable and preferably functional unit.
    公开号:BE1025998B1
    申请号:E2018/5598
    申请日:2018-08-28
    公开日:2019-09-11
    发明作者:Guido Sommer；Philipp Goldmann
    申请人:Zahoransky Ag；
    IPC主号:
    专利说明:

    The invention relates to workpiece clamping devices, in particular for clamping brush bodies, with a guide frame, with at least one movable clamping element and with at least one movable workpiece holder, the at least one clamping element and the at least one workpiece holder between an end stop and a counter clamping element of the guide frame for workpiece clamping on the guide frame are axially displaceable.
    Furthermore, the invention also relates to a brush production machine with at least one workpiece clamping device of the type mentioned at the outset and to a method for producing a workpiece clamping device.
    Workpiece clamping devices of the type mentioned at the outset are known in practice in various embodiments. As a rule, the individual parts from which such workpiece clamping devices are made are manufactured individually and then connected to one another in order to assemble the workpiece clamping devices. The manufacture and assembly of the individual parts involves a certain amount of effort, which can make the adaptation and redesign of the workpiece clamping devices difficult and expensive when changing the pattern of the workpieces to be clamped. In addition, when assembling the previously known workpiece clamping devices, a certain amount of experience of the installer is necessary in order to prevent incorrect assembly and / or confusion of individual parts.
    The object of the invention is therefore to provide workpiece clamping devices of the type mentioned and a method for their production
    BE2018 / 5598 create, which simplify the manufacture, assembly and ultimately also handling of the workpiece clamping devices in operation in comparison to the workpiece clamping devices known from the prior art.
    To solve this problem, it is proposed in a workpiece clamping device of the type mentioned at the outset that the guide frame of this workpiece clamping device, the at least one clamping element and the at least one workpiece holder are produced in a common generative manufacturing process as a non-removable unit, in which the guide frame, the at least one clamping element and the at least one workpiece receptacle is connected to one another through their manufacture, but is movable relative to one another. A workpiece clamping device is thus created which is in the form of a multi-part, generatively produced functional element and has at least one integrated workpiece holder and at least one clamping element which is individually adapted to the pattern of the workpiece to be clamped.
    It can be particularly advantageous if the guide frame, the at least one clamping element and the at least one workpiece receptacle are also available as a ready-to-use unit in a common generative manufacturing process that does not require any reworking.
    The guide frame, the at least one clamping element and the at least one workpiece holder can be produced particularly preferably by means of 3D printing.
    The manufacture of the components of the workpiece clamping device in a generative manufacturing process, for example by means of 3D
    BE2018 / 5598
    Pressure, makes it possible to adapt the workpiece clamping device quickly, at low cost and with little effort, to a pattern change of the workpiece to be clamped. Characterized in that at least the guide frame, the at least one clamping element and the at least one workpiece holder are inseparably and non-destructively connected to one another when they are produced by means of a common additive manufacturing process, it is possible for components such as screws and / or pins to be connected to them the individual parts of the previously known clamping devices were interconnected, can be saved. This leads to a reduction in weight of the workpiece clamping device thus produced.
    The guide frame, the at least one clamping element and the at least one workpiece holder can be designed such that the positional tolerance of the aforementioned components relative to one another required for precise workpiece clamping with the workpiece clamping device is only set by mounting the workpiece clamping device on a machine tool, for example a brush manufacturing machine becomes.
    Overall, the workpiece clamping device according to the invention thus allows a simplification and acceleration of the assembly, adaptation and retrofitting processes that can occur when changing the pattern and also when using the workpiece clamping device.
    For the production of the guide frame, the at least one clamping element and the at least one workpiece holder in a common additive manufacturing process, it can be advantageous if the guide frame, the at least one clamping element and the at least one workpiece holder are at least immediately after their production by the common generative
    BE2018 / 5598
    Manufacturing process by separating gaps produced in the manufacture between the guide frame, the at least one clamping element and the at least one workpiece support and / or at least a distance.
    The above-mentioned object is also achieved by a workpiece clamping device of the type mentioned at the outset, which has an axial guide which is designed in such a way that the at least one clamping element and the at least one workpiece holder by positioning the guide frame in its position of use between guide strips of the axial guide which are connected to the Guide frames are formed, can be centered and / or preloaded.
    This embodiment of the workpiece clamping device allows the manufacturing tolerances of the guide frame, the at least one clamping element and the at least one workpiece holder of the workpiece clamping device to be kept comparatively large. This embodiment of the workpiece clamping device can be produced particularly easily in a generative manufacturing process. The advantages associated with greater manufacturing tolerances in manufacture can be achieved regardless of whether the guide frame, the at least one clamping element and the at least one workpiece holder are manufactured in a common generative manufacturing process or, for example, with machining manufacturing methods. The relative position of the guide frame, the at least one clamping element and the at least one workpiece holder relative to one another, which is required for the operation of the workpiece clamping device, can be generated automatically or forcibly when the guide frame is positioned in its use position.
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    This can be done, for example, by positioning and fixing the guide frame on a fastening interface of a machine tool, for example a brush manufacturing machine. By this positioning, a force can be exerted on the at least one workpiece holder and the at least one clamping element via a fastening interface, on which the workpiece clamping device is arranged, through which the at least one workpiece holder and the at least one clamping element automatically move into their centered and / or pretensioned use position get to the lead frame. As a result, this can mean that the at least one workpiece holder and the at least one clamping element are automatically arranged in their intended and operational target position on the guide frame if the workpiece holder is properly arranged in its use position on a fastening interface of a machine tool.
    In this respect, a workpiece clamping device of the type mentioned at the outset is created, in which a separate setting of guide tolerances and / or a separate setting of a pretension of the elements axially displaceably guided on the guide frame is no longer necessary.
    In this case, the at least one workpiece holder and the at least one clamping element, when the workpiece clamping device is in the use position on the machine tool, in particular a brush manufacturing machine, can be between a fastening interface of the machine tool for the
    Workpiece clamping device and the guide frame of the
    Workpiece clamping device can be biased or be. Thereby
    BE2018 / 5598 you can maintain your defined and correct operating position on the guide frame.
    The previously described automatic centering and / or pretensioning of the at least one clamping element and the at least one workpiece holder on the guide frame can be carried out in a particularly simple and uncomplicated manner if the axial guide is designed as a dovetail guide. This dovetail guide can have a dovetail-shaped guide slot which is laterally delimited by the guide strips of the guide frame. The tool holder and the at least one clamping element each then comprise a suitably designed dovetail-shaped shoulder with which they are arranged in the guide slot. The dovetail-shaped design of the guide slot on the one hand and the shoulders on the at least one clamping element and the at least one tool holder on the other hand mean that the at least one clamping element and also the at least one tool holder are axially movable, but the at least one clamping element and the at least one are lifted off Workpiece pick-up from the guide rails of the guide frame can be prevented. The at least one clamping element and the at least one workpiece holder can be referred to as slides guided in the dovetail guide.
    In particular, if the dovetail-shaped guide slot widens starting from a workpiece support side of the workpiece clamping device towards an underside of the workpiece clamping device, it is possible to prevent the at least one workpiece receptacle positioned within the guide slot and the clamping element positioned within the guide slot from being lifted out of the guide slot.
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    For automatic centering and / or bracing of the at least one clamping element and the at least one workpiece holder, it can be advantageous if a height of the dovetail-shaped shoulders is greater than a depth of the dovetail-shaped guide slot. The dovetail-shaped shoulders of the workpiece holder and the clamping element on the previously mentioned underside of the workpiece clamping device can initially protrude from the guide frame. When the guide frame is positioned in its use position on a fastening interface of a machine tool, the shoulders can first be acted upon by the fastening interface and can thus be displaced transversely to the guide strips which delimit the dovetail-shaped guide slot. This continues until the at least one clamping element and the at least one workpiece holder have reached their defined and centered and / or pretensioned position on the guide strips of the guide frame.
    A distance and / or a gap between the shoulders and the guide strips can be reduced to a target size. The guide frame, the clamping element and the workpiece holder can then be manufactured in a position of use assembled to one another, but as separate elements of the workpiece clamping device in a common additive manufacturing process.
    For the previously described centering and / or pretensioning, it can be advantageous if the guide frame has or defines an opening on the underside, through which the at least one clamping element and / or the at least one workpiece holder from an underside of the workpiece clamping device, which faces away from a workpiece support side is / are accessible. That way
    BE2018 / 5598 ensures that the at least one clamping element, the at least one workpiece holder when positioning the guide frame in its position of use, can be acted upon by a fastening interface for the workpiece clamping device and can finally be moved into its desired position.
    In this context, it can be advantageous if the at least one clamping element and the at least one workpiece support in the starting position have an underside offset to the guide frame than project beyond the underside of the guide frame. Then the at least one clamping element and the at least one workpiece support for an attachment interface of the workpiece clamping device can be reached even more easily and can be automatically brought into their desired position on the guide frame particularly simply by positioning the workpiece clamping device in its use position on the attachment interface.
    The at least one clamping element and / or the at least one workpiece holder can have a holder for a driver on its underside facing away from a workpiece support side. With this driver, it is possible to move the at least one clamping element and / or the at least one workpiece holder back into an initial position after clamping a workpiece positioned on the workpiece holder. The receptacle preferably has an insertion opening on its head side facing the counter-tensioning element. The driver can enter the receptacle via the insertion opening at the head. With the driver, which can be designed, for example, as a plunger or finger, the workpiece holder and / or the clamping element can be made from it
    BE2018 / 5598
    Clamping position can be moved to a starting position in which the workpiece holder can be loaded again.
    The movement of the workpiece holder towards the counter clamping element can take place by means of the at least one clamping element assigned to the workpiece holder. By axially displacing the clamping element on the guide frame in the direction of the counter clamping element, the workpiece holder is also advanced in the direction of the counter clamping element and a workpiece placed on the workpiece holder is clamped for its processing.
    In order to be able to fasten the workpiece clamping device in its use position on a machine tool, for example on a brush production machine, it is advantageous if the guide frame has at least one fastening means receptacle in which a fastening means can be arranged or arranged. The fastening means receptacle can be a screw receptacle, for example, into or through which a fastening screw can be inserted, in order to fix the workpiece clamping device in its position of use via the guide frame.
    The attachment of the workpiece clamping device can be particularly convenient if a magnet is arranged as the attachment means in the at least one attachment means receptacle. This magnet can, for example, be screwed and / or glued to the guide frame in the fastening means receptacle.
    In this way it is possible to fix the workpiece clamping device in its position of use with magnetic force. The use of
    BE2018 / 5598
    Tool and the assembly effort for fixing the workpiece clamping device can thus be reduced.
    In a particularly advantageous embodiment of the
    Workpiece clamping device can be the at least one
    Workpiece holder by the at least one clamping element, in particular via a direct contact, in the direction of the
    Counter clamping element are moved. In particular, if the at least one workpiece holder is to be moved by direct contact with the at least one clamping element when the clamping element is displaced in the direction of the counter-clamping element, it can be advantageous if a dimension of the workpiece holder measured in the direction of displacement is smaller than one dimension measured in the same direction Dimension between contact points of a workpiece positioned on the workpiece holder on the at least one clamping element on the one hand and on the counter clamping element on the other. In this way, a movement of the workpiece holder caused by a movement of the at least one clamping element is made possible without impairing a reliable and defined clamping of the workpiece positioned on the at least one workpiece holder between the at least one clamping element and the counter-clamping element.
    In order to be able to reliably fix the workpiece on the at least one workpiece holder, the at least one clamping element and / or the at least one counter-clamping element can each have a hold-down device.
    Furthermore, the invention also relates to a brush production machine with at least one workpiece clamping device designed as a brush clamping device according to one of claims 1 to 11.
    BE2018 / 5598
    The at least one clamping element and the at least one workpiece holder can automatically get into their desired position when the workpiece clamping device is mounted on the brush manufacturing machine, if the at least one workpiece holder and the at least one clamping element between an attachment interface of the brush manufacturing machine for the workpiece clamping device and the guide frame of the workpiece clamping device. The fastening interface and the guide frame can directly contact the at least one clamping element and the at least one workpiece holder.
    Furthermore, to achieve the object, a method for producing workpiece clamping devices, in particular one of the type mentioned at the outset, is proposed, which has the means and features of the independent claim directed to the method. Thus, in the method for solving the problem, it is proposed in particular that at least one guide frame, at least one clamping element and at least one workpiece holder of the workpiece clamping device are produced in a common generative manufacturing process as a non-removable unit, in which the guide frame, the at least one clamping element and the at least one a workpiece holder is connected to each other through its manufacture, but is movable relative to one another.
    The at least one guide frame, the at least one clamping element and the at least one workpiece support can preferably be 3D-printed.
    For the production of the workpiece clamping device, it can be favorable if in the production of the at least one guide frame, the at least one clamping element and the at least one workpiece holder in the common generative
    BE2018 / 5598
    Manufacturing process between the at least one clamping element and the guide frame and between the at least one workpiece support and the guide frame each a gap or more gaps are generated, through which the guide frame, the at least one clamping element and the at least one workpiece holder are separated from each other. This prevents the guide frame, the at least one clamping element and the at least one workpiece support from forming a materially homogeneous monolithic unit and from being materially connected to one another. Thus, a relative mobility of the at least one clamping element and the at least one workpiece support to the guide frame is not impaired despite their manufacture in a common additive manufacturing or manufacturing process.
    An exemplary embodiment of the invention is explained in more detail below with reference to the drawing. They show in a partially highly schematic representation:
    1 is a perspective view of a workpiece clamping device which has a guide frame, a counter clamping element, a clamping element mounted axially displaceably on the guide frame and a workpiece holder arranged axially displaceably on the guide frame between the clamping element and the counter clamping element,
    2 is a plan view of the workpiece clamping device shown in FIG. 1,
    3 is a sectional view taken along the line III-III of the workpiece clamping device shown in FIGS. 1 and 2,
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    4 shows a sectional view along the line IV-IV shown in FIG. 2 of the workpiece clamping device shown in FIGS. 1 to 3,
    5 shows a perspective view of the workpiece clamping device shown in FIGS. 1 to 4 with a brush body clamped thereon, the workpiece clamping device being arranged on a mounting plate of a brush manufacturing machine serving as an attachment interface,
    6 is a sectional view along the line VI-VI shown in FIG. 5 of the workpiece clamping device shown in FIG. 5,
    7 shows the detail marked with the rectangle D in FIG. 6 in an enlarged representation,
    8 is a perspective view of the guide frame of the workpiece clamping device shown in FIGS. 1 to 7,
    9 is a perspective view of the workpiece holder of the workpiece clamping device shown in FIGS. 1 to 7,
    Fig. 10 is a perspective view of the clamping element of the workpiece clamping device shown in Figs. 1 to 7 and
    11 to 14 different views of the workpiece clamping device shown in the previous figures immediately after their manufacture by means of a generative manufacturing process, for example by means of 3D printing, with between the guide frame
    BE2018 / 5598 on the one hand and the clamping element and the workpiece holder on the other a distance and offset can be seen.
    1 to 14 each show at least parts of a workpiece clamping device for brush bodies 2, designated as a whole by 1. The workpiece clamping device 1 has a guide frame 3, a movable clamping element 4 and a movable workpiece holder 5, to which one shown in FIGS. 5 and 6 Brush body 2 can be placed.
    The clamping element 4 and the workpiece holder 5 are axially displaceably mounted between an end stop 6 and a counter clamping element 7 of the guide frame 3 for workpiece clamping on the guide frame 3. The guide frame 3, the clamping element 4 and the workpiece holder 5 are produced in a common generative manufacturing process as a non-removable unit. 3D printing processes, for example, are used as generative manufacturing processes.
    This non-removable unit is characterized by the fact that the guide frame 3, the clamping element 4 and the at least one workpiece holder 5 are movable relative to each other by their manufacture, but are connected to each other in an inaccessible manner.
    The guide frame 3, the at least one clamping element 4 and the at least one workpiece holder 5 are at least immediately after their manufacture by the common additive manufacturing method by gaps 26 and 26 generated during their manufacture between the guide frame 3, the at least one clamping element 4 and the at least one workpiece support 5 Distances E separated from each other.
    BE2018 / 5598
    The workpiece clamping device 1 comprises an axial guide 8. The axial guide 8 is designed such that the clamping element 4 and the workpiece holder 5 can be centered and pretensioned by positioning the guide frame 3 in its position of use shown in FIG. 5 between guide strips 9 of the axial guide 8 formed on the guide frame 3 , Thus, the clamping element 4 and the workpiece holder 5 automatically get their desired position relative to the guide strips 9 of the guide frame 3 by positioning the guide frame 3 in its use position.
    In the exemplary embodiment which is shown in FIG. 5, the guide frame 3 is arranged on a mounting plate 10 of a brush manufacturing machine 11 which is shown only very schematically in FIG. The mounting plate 10 serves as a fastening interface 10 of the brush manufacturing machine 11 to which the workpiece clamping device 1 is fastened.
    Centering pins 12 are provided on the mounting plate 10, which engage in corresponding centering mounts 13 on the guide frame 3 and thus define the position of the workpiece clamping device 1 on the mounting plate 10.
    The workpiece holder 5 and the at least one clamping element 4 are preloaded between the mounting plate 10 and the guide frame 3 of the workpiece clamping device 1 when the workpiece clamping device 1 is in the use position on the brush manufacturing machine 11.
    The axial guide 8 is designed as a dovetail guide and comprises a dovetail-shaped guide slot 14 laterally delimited by the guide strips 9 of the guide frame 3
    BE2018 / 5598 this guide slot 14 engage the workpiece holder 5 and the clamping element 4 each with a dovetail-shaped shoulder 15. Thus, the clamping element 4 and workpiece holder 5 are designed as slides, which are arranged with their dovetail-shaped shoulder 15 in the correspondingly dovetail-shaped guide slot 14 of the axial guide 8 so as to be axially displaceable and guided.
    FIGS. 3 and 4 show that the dovetail-shaped guide slot 14 widens starting from a workpiece support side 16 towards an underside 17 of the workpiece clamping device 1. This prevents the workpiece holder 5 and the clamping element 4 from the dovetail-shaped guide slot 14 in the direction of the workpiece support side 16 from the guide frame 3 can be removed. In addition, the previously described configuration of the dovetail-shaped guide slot 14 in conjunction with the dovetail-shaped shoulders 15 favors automatic centering and pretensioning of the clamping element 4 and the workpiece holder 5 in the axial guide 8 when the workpiece clamping device 1 is placed on the mounting plate 10 of the brush manufacturing machine 11.
    When the workpiece clamping device 1 is placed on the mounting plate 10, a distance E, which is illustrated in FIGS. 11 to 14, and a gap 26 and / or a guide gap between the shoulders 15 and the guide strips 9 of the guide frame 3 are reduced to a desired dimension. Thus, the clamping element 4 and the workpiece support 5 are automatically brought into their position on the guide frame 3 required for the function of the workpiece clamping device 1 when the workpiece clamping device 1 is placed on the mounting plate 10.
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    In order to ensure that the clamping element 4 and the workpiece holder 5 are actually pressed against the guide strips 9 of the guide frame 3 by placing the workpiece clamping device 1 on the mounting plate 10 of the brush-making machine 11 and are centered and pretensioned, there is a height A of the dovetail-shaped heels 15 of the clamping element 4 and the workpiece holder 5 according to FIG. 3 is greater than a depth B of the dovetail-shaped guide slot 14. This also leads to the clamping element 4 and the workpiece holder 5 in the starting position according to FIGS. 11 to 14, which the workpiece clamping device 1 immediately after their Show production by means of 3D printing, have an underside offset 27 to the guide frame.
    FIG. 7 illustrates the effect that the different dimensions A and B of the shoulders 15 and the guide slot 14 have when the workpiece clamping device 1 is in the use position. In the pretensioned position of use, a distance C is established between shoulders 15a of the clamping element 4 and the workpiece holder 5, which delimit the shoulders 15, and the guide strips 9 of the guide frame 3. Furthermore, undersides of the clamping element 3 and the workpiece holder 5 in the use position of the workpiece clamping device 1 are flush with an underside of the guide frame 3, while an offset 27 can be seen here immediately after the production of the workpiece clamping device 1 (see FIGS. 11 to 14). The same applies to the upper sides of the clamping element 3, the workpiece holder 5 and the guide frame 3. In the use position of the workpiece clamping device 1, they can also be aligned flush with one another at the fastening interface 10 of the brush manufacturing machine 11.
    BE2018 / 5598
    The guide frame 3 is open on the underside and thus has an opening 18 on the underside. Through the opening 18 on the underside, the clamping element 4 and the tool holder 5 and the guide slot 14 are accessible from the underside 17 of the workpiece clamping device 1 facing away from the workpiece support side 16. This favors the automatic centering and pretensioning of the clamping element 4 and the workpiece holder 5 on the guide frame 3 when the workpiece clamping device 1 with the guide frame 3 is placed on the mounting plate 10 of the brush manufacturing machine 11 serving as a fastening interface.
    According to FIG. 6, the workpiece holder 5 has, on its underside facing away from the workpiece support side 16, a holder 19 for a driver, which is not shown in the figures. The driver can engage in the receptacle 19 on the underside of the workpiece receptacle 5 in order to move the tool receptacle 5 back into a starting position from the clamping position shown in FIG. In this initial position, the workpiece holder 5 can be loaded with a further brush body 2 after removal of the machined brush body 2.
    FIG. 6 illustrates that the receptacle 19 has an insertion opening 20 on its head side facing the counter-tensioning element 7, through which the pin-shaped driver, for example, can be inserted into the receptacle 19. This is done with the aim of removing the workpiece holder 5 from the counter-clamping element 7 by a corresponding movement.
    During the movement of the workpiece holder 5 into its clamping position on the guide frame 3 with the aid of the clamping element 4
    BE2018 / 5598 is effected, the workpiece holder 5 is moved back by the driver engaging in the holder 19.
    Figures 1, 2, 5, 8 and 11 show that the guide frame 3 has a total of six fastener receptacles 21. A fastener 22 is fixed in each of the fastener receptacles 21 of the guide frame 3. The fastening means 22 arranged in the fastening means receptacles 21 are magnets 22. The magnets 22 are screwed into the fastening means receptacles 21 with the guide frame 3 of the workpiece clamping device 1. In this way, they are not lost and, due to their magnetic force, are not inadvertently pulled out of the fastening means receptacles 21 when the workpiece clamping device 1 is removed from the mounting plate 10.
    The workpiece holder 5 can be moved on the guide frame 3 by direct contact between the clamping element 4 and the workpiece holder 5 in the direction of the counter-clamping element 7. For this purpose, the clamping element 4 has, on its front side facing the workpiece holder 5, two pusher surfaces 23 with which it can act on the workpiece holder 5 via counterpressure surfaces 24 which are formed on the workpiece holder 5.
    Both the clamping element 4 and the counter-clamping element 7 are equipped with hold-down devices 25 with which a workpiece arranged on the workpiece holder 5, here a brush body 2, can be fixed to the workpiece clamping device 1 during its processing.
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    The workpiece holder 5 and the clamping element 4 are captively connected to the guide frame 3 and form a non-destructively non-removable unit.
    Finally, FIGS. 5, 6 and 7 show a highly schematic representation of a brush manufacturing machine 11 with a workpiece clamping device 1 designed as a brush clamping device. In this brush manufacturing machine 11 it is provided that the workpiece holder 5 and the clamping element 4 between the fastening interface 10 of the brush manufacturing machine 11 and the guide frame 3 of the workpiece clamping device 1 are clamped and thus assume and hold their desired position on the axial guide 8 when the workpiece clamping device 1 is arranged in its use position on the fastening interface, that is to say on the mounting plate 10 of the brush manufacturing machine 11.
    FIGS. 11 to 14 show the workpiece clamping device 1 immediately after its manufacture by means of a generative manufacturing process, for example by means of 3D printing. It is noticeable here that the clamping element 4 and also the workpiece holder 5 to the guide frame 3 each have an offset 27 and a distance E from the guide frame 3, which is reduced or even closed by placing the workpiece clamping device 1 on the holder plate 10 , The offset 27 can also be seen on the workpiece support side 16 of the workpiece clamping device 1 in FIG. 11.
    Thus, during and immediately after the production of the workpiece clamping device 1, between inclined flanks of the dovetail-shaped shoulders 15 of the clamping element 4 and the workpiece holder 5 and the guide strips 9 of the guide frame
    BE2018 / 5598 each have a gap 26 which favors the manufacture of the workpiece clamping device 1 in a generative manufacturing process. The guide frame 3, the clamping element 4 and the workpiece holder 5 are manufactured together in the use position, but as separate elements of the workpiece clamping device 1 in a common generative manufacturing process.
    By positioning the workpiece clamping device 1 in its position of use, the clamping element 4 and also the workpiece holder 5 are displaced towards the guide frame 3 and this gap 26 is reduced or even closed. This is particularly clear when comparing FIGS. 13 and 14 with FIGS. 3 and 4. Here, the distance E is also significantly smaller in comparison to FIGS. 14 and 15.
    Thus, the distances E and the gaps 26 between the shoulders 15 of the clamping element 4 and the workpiece support 5 and the guide strips 9 of the guide frame 3 can be reduced to a desired dimension by positioning the workpiece clamping device 1 in its position of use. Because of the offset 27, the clamping element 4 and the workpiece holder 5 first come into contact with the fastening interface 10 of the brush manufacturing machine 11 when the workpiece clamping device 1 is positioned. The clamping element 4 and the workpiece holder 5 are displaced relative to the guide frame 3 until the guide frame 3 bears against the fastening interface 10. In FIGS. 5 to 7 there is no longer any offset 27 between the clamping element 4, the workpiece holder 5 and the guide frame 3, at least on the underside of the workpiece clamping device 1.
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    The invention is concerned with improvements in the technical field of clamping workpieces, in particular brush bodies 2. To simplify the manufacture, assembly and handling of workpiece clamping devices 1, a 5 workpiece clamping device 1 is provided with a guide frame 3, at least one clamping element 4 arranged thereon and with at least one workpiece holder 5 movably mounted on the guide frame 3 is proposed, which in a common additive manufacturing process cannot be disassembled and 10 is preferably produced without a further processing-ready unit.
    BE2018 / 5598
    LIST OF REFERENCE NUMBERS
    Workpiece clamping device
    brush body
    guide frame
    clamping element
    Workpiece holder
    end stop
    Against clamping element
    axial guidance
    guide rails
    Mounting interface / mounting plate
    Brush manufacturing machine
    Pins
    centering recesses
    guide slot
    paragraph
    15a shoulder to 15
    Workpiece support page
    Underside bottom opening of 3
    admission
    insertion
    Mounting borrowing
    Fasteners / Magnetic
    Pusher surface on 4
    Counterpressure area at 5
    down device
    Gap between 4, 5 and 3
    offset
    BE2018 / 5598
    Expectations
    权利要求:
    Claims (15)
    [1]
    1. Workpiece clamping device (1), in particular for brush bodies (2), with a guide frame (3), with at least one movable clamping element (4) and with at least one movable workpiece holder (5), the at least one clamping element (4) and the at least one a workpiece holder (5) between an end stop (6) and a counter clamping element (7) of the guide frame (3) for workpiece clamping on the guide frame (3) are axially displaceable, characterized in that the guide frame (3), the at least one clamping element ( 4) and the at least one workpiece holder (5) are produced in a common additive manufacturing process as a non-removable unit, in which the guide frame (3), the at least one clamping element (4) and the at least one workpiece holder (5) cannot be tied to one another due to their manufacture connected, but are movable relative to each other.
    [2]
    2. workpiece clamping device (1) according to claim 1, characterized in that the guide frame (3), the at least one clamping element (4) and the at least one workpiece holder (5) at least immediately after their manufacture by the common generative manufacturing process by in their manufacture between the guide frame (3), the at least one clamping element (4) and the at least one workpiece support (5) produced gaps (26) and / or at least a distance (E) are separated from one another.
    [3]
    3. Workpiece clamping device (1), in particular for brush bodies (2), with a guide frame (3), with at least one movable clamping element (4) and with at least one movable one
    BE2018 / 5598
    Workpiece holder (5), the at least one clamping element (4) and the at least one workpiece holder (5) being axially displaceably mounted between an end stop (6) and a counter clamping element (7) of the guide frame (3) for workpiece clamping on the guide frame (3) , in particular according to claim 1 or 2, characterized in that the workpiece clamping device (1) has an axial guide (8) which is designed such that the at least one clamping element (4) and the at least one workpiece holder (5) by positioning the guide frame ( 3) can be centered and / or pretensioned in its position of use between guide strips (9) of the axial guide (8) formed on the guide frame (3).
    [4]
    4. workpiece clamping device (1) according to one of claims 1 to 3, characterized in that the at least one workpiece holder (5) and the at least one clamping element (4) in the use position on a machine tool (11), in particular a brush manufacturing machine (11), located workpiece clamping device (1) between a fastening interface (10) of the machine tool (11) for the workpiece clamping device (1) and the guide frame (3) of the workpiece clamping device (1) are biased or biased.
    [5]
    5. Workpiece clamping device (1) according to one of claims 1 to 4, characterized in that the axial guide (8) is designed as a dovetail guide which has a dovetail-shaped guide slot (14) laterally delimited by the guide strips (9) of the guide frame (3), and that the workpiece holder (5) and the clamping element (4) each comprise a dovetail-shaped shoulder (15) with which they are arranged in the guide slot (14).
    BE2018 / 5598
    [6]
    6. workpiece clamping device (1) according to claim 5, characterized in that the dovetail-shaped guide slot (14) starting from a workpiece support side (16) of the workpiece clamping device (16) to an underside (17) of the workpiece clamping device (1) and / or that a height (A) of the dovetail-shaped shoulders (15) is greater than a depth (B) of the dovetail-shaped guide slot (14), preferably with a distance (E) and / or a gap (26) or guide gap between the shoulders (15) and the guide strips (9) of the guide frame (3) can be reduced to a desired dimension by positioning the workpiece clamping device (1) in its position of use.
    [7]
    7. workpiece clamping device (1) according to one of claims 1 to 6, characterized in that the guide frame (3) has or defines an underside opening (18) through which the at least one clamping element (4) and / or the at least one workpiece holder ( 5) is / are accessible from the underside (17) of the workpiece clamping device (1) facing away from a workpiece support side (16).
    [8]
    8. workpiece clamping device (1) according to any one of claims 1 to 7, characterized in that the at least one clamping element (4) and / or the at least one workpiece holder (5) on its / on its a workpiece support side (16) facing away from a receptacle ( 19) for a driver, preferably wherein the receptacle (19) has an insertion opening (20) on its head side facing the counter-tensioning element (7).
    [9]
    9. workpiece clamping device (1) according to one of claims 1 to 8,
    BE2018 / 5598 characterized in that the guide frame (3) has at least one fastening means receptacle (21) in which a fastening means (22), in particular a magnet (22), can be arranged or arranged.
    [10]
    10. Workpiece clamping device (1) according to one of claims 1 to 9, characterized in that the at least one workpiece holder (5) by the at least one clamping element (4), in particular via direct contact, is displaceable in the direction of the counter clamping element (7).
    [11]
    11. Workpiece clamping device (1) according to one of claims 1 to 10, characterized in that the at least one clamping element (4) and / or the at least one counter clamping element (7) each have a hold-down device (25) for a arranged on the workpiece holder (5) Workpiece (2) has / have.
    [12]
    12. Brush manufacturing machine (11) with at least one workpiece clamping device (1) according to one of claims 1 to 11, wherein the workpiece clamping device (1) is designed as a brush clamping device.
    [13]
    13. Brush manufacturing machine (11) according to claim 12, characterized in that the at least one workpiece holder (5) and the at least one clamping element (4) between a fastening interface (10) of the brush manufacturing machine (11) for the workpiece clamping device (1) and the guide frame ( 3) of the workpiece clamping device (1), the fastening interface (10) and the guide frame (3) the at least one clamping element (4) and the at least one workpiece holder (5) directly
    Contact BE2018 / 5598.
    [14]
    14. A method for producing a workpiece clamping device (1), in particular one according to one of claims 1 to 11, wherein at least one guide frame (3), at least one clamping element (4) and at least one workpiece holder (5) of the workpiece clamping device (1) in one common generative manufacturing process as a non-removable unit, in particular 3D printed, in which the guide frame (3), the at least one clamping element (4) and the at least one workpiece holder (5) are connected to each other through their manufacture, but are movable relative to each other ,
    [15]
    15. The method according to claim 14, wherein in the production of the at least one guide frame (3), the at least one clamping element (4) and the at least one workpiece holder (5) in the common additive manufacturing process between the at least one clamping element (4) and the guide frame (4) and between the at least one workpiece support (5) and the guide frame (3) a gap (26) or more gaps (26) are generated, through which the guide frame (3), the at least one clamping element (4) and at least one workpiece holder (5) are separated from one another.
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    同族专利:
    公开号 | 公开日
    DE102017122433B3|2018-11-15|
    BE1025998A1|2019-09-04|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE4425230A1|1994-07-16|1996-01-18|Zahoransky Anton Gmbh & Co|Brush mfr. machine with feeder transporting brush bodies or bristles|
    EP3162471A1|2015-10-20|2017-05-03|General Electric Company|Additively manufactured rotor blades and components|
    JP2017144534A|2016-02-19|2017-08-24|国立研究開発法人産業技術総合研究所|Work holder and processing system of using this work holder holding tool|
    DE2659458A1|1976-12-30|1978-07-06|Zahoransky Anton Fa|BRUSH MAKING MACHINE|
    DE102013109539A1|2013-09-02|2015-03-05|EMUGE-Werk Richard Glimpel GmbH & Co. KG Fabrik für Präzisionswerkzeuge|Clamping device with a reinforcing element|
    法律状态:
    2019-10-18| FG| Patent granted|Effective date: 20190911 |
    优先权:
    申请号 | 申请日 | 专利标题
    DE102017122433.5|2017-09-27|
    DE102017122433.5A|DE102017122433B3|2017-09-27|2017-09-27|Workpiece clamping device and brush making machine|
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