• 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 clamping module, preferably for Zentrierspannvorrichtungen for machining workpieces, consisting of a designed as a slide body (4) with at least one attached jaw, wherein the base body (4) in the direction of the clamping force with a guided by him spindle (7) is adjustable, which in a basic body (4) in the axial direction of the spindle limited sliding gate (9) is screwed. Between the link (9) and the base body (4) effective biasing springs are arranged in the direction of the clamping force, by the spring force of the base body (4) with the clamping jaw is automatically adjustable upon release of the clamping force.
    公开号:CH711048A2
    申请号:CH00632/15
    申请日:2015-05-07
    公开日:2016-11-15
    发明作者:Baumgartner Beat
    申请人:Triag Int Ag；
    IPC主号:
    专利说明:

    The invention relates to a clamping module, in particular for a clamping device for machining workpieces, which comprises a slide formed as a base body with at least one clamping jaw attached thereto, wherein the base body in the direction of the clamping force with a guided by this spindle is adjustable.
    Such clamping modules are used for example in multiple clamping devices for clamping geometrically complicated workpieces in machine tools, machining centers or the like facilities. This is done with simple steps by pressing the clamping modules against each other moving spindle.
    To ensure that the workpiece remains fixed during the machining process, the clamping jaws of the module with embossing teeth, which impress during clamping of the workpiece in it, equipped. In the case of workpieces made of soft materials, such as aluminum or aluminum-containing alloys, however, during the machining process it can cause the embossing teeth to work deeper into the workpiece, for example due to vibrations and other mechanical stresses, which in turn reduces the clamping force until the workpiece is loosened can result.
    The invention is based on the object to remedy these disadvantages and to provide a spindle-actuated clamping module of the type mentioned, which ensures even with workpieces made of soft materials always an approximately constant clamping force with structurally simple means.
    This object is achieved according to the invention that a limited in the body in the axial direction of the spindle sliding gate is provided, which is adjustable by the spindle and between this and the body in the direction of the Verspannkraft effective biasing springs are arranged by the spring force of the body with the jaw attached thereto is automatically adjustable upon release of the clamping force.
    The biasing springs installed in the clamping module ensure that when vibrations, plastic deformations of the workpiece and similar influences, the tension of the workpiece, even with workpieces made of soft materials no easing undergoes because its acted upon with the bias springs body automatically maintains the required tension ,
    Thus, the biasing springs can fully effect the adjustment effect, the displacement of the gate and the spring stroke of the biasing springs according to the invention are coordinated so that after tightening the workpiece still a Nachspannen enabling adjustment is available.
    Conveniently, the biasing force of the biasing springs can be adjusted with screwed into the body preload screws.
    To distribute the biasing pressure of the springs uniformly on the body, the invention provides that the biasing springs are placed in pairs in a pair of symmetrical about the spindle and there are guided axially parallel to the spindle with seated in the backdrop guide pins.
    It is advantageous in terms of convenient handling when the preloading screws for adjusting the biasing force of the springs are screwed into an end wall of the base body and are provided on the back with a central blind bore for receiving the guide pins for the biasing springs.
    The latter are according to the invention designed as cup spring packages, it being expedient both for reasons of space and in terms of the required biasing force, preferably four disc spring assemblies, each with a plurality arranged in the same direction disc springs provided.
    The jaws are formed as stamping inserts, which are screwed onto the base body. This makes it possible to vary the profile of the jaws as needed.
    The invention is explained below with reference to an embodiment with reference to the drawings. Show it:<Tb> FIG. 1 <SEP> a clamping device with a clamping module according to the invention, shown in perspective,<Tb> FIG. 2 <SEP> is a front view of the tensioning device of FIG. 1,<Tb> FIG. 3 <SEP> a section of the tensioning device along the line III-III according to FIG. 2,<Tb> FIG. 4 <SEP> a perspective view of the clamping module and the slide with the clamping screws of FIG. 1 from below,<Tb> FIG. 5 <SEP> a section of the clamping module and partly of the frame, and<Tb> FIG. 6 <SEP> a detail VI of the biasing spring of FIG. 5, shown enlarged.
    The tensioning device 1 according to FIG. 1 to FIG. 3 has two clamping modules 2 and 3, whose base body 4 designed as a carriage are guided in a frame 5 with guide grooves 6 and in opposite directions with a guided through them spindle 7 toward or away from each other are movable away. On the clamping modules 2, 3 are formed as embossing inserts clamping jaws 8 are attached. The spindle 7 is held rotatably in the middle by a bearing 7 on the frame 5.
    The clamping module 2 is formed according to the invention, and the actuation takes place here via a limited in the base body 4 in the axial direction of the spindle 7 sliding gate 9, in which the spindle 7 is screwed.
    In the described embodiment, the other clamping module 3 is conventionally formed by being operated directly with the spindle 6 screwed therein. In principle, however, it could also be equipped according to the invention.
    Conveniently, the base body 4 is provided on the bottom with an opening 18 through which the slide 9 is installable therein. The biasing springs 10 may in turn be inserted through the front wall 16 of the body.
    Between the base body 4 and the gate 9 are in this four pairs symmetrically placed around the spindle 7 biasing springs 10 there - as shown in Fig. 4 to 6 - on the seat in the backdrop 9 seated guide pins 11 axially parallel to the spindle. 7 are guided. The effective in the direction of the clamping force biasing springs 10 are formed as plate spring packets, each having a plurality of disc springs 12 arranged in the same direction.
    The distance 14 formed between the slide 9 and the base body 4 and the spring stroke of the biasing springs 10 are coordinated so that after tightening the workpiece still a Nachspannen enabling adjustment is available. The biasing force of the biasing springs 10 can be adjusted with biasing screws 15 which are screwed into the front wall 16 of the base body 4 and the front side with a blind bore 17 for receiving the guide pins 11 are provided.
    In Fig. 3, the clamping module 3 is illustrated with the clamping jaw 8 in the relaxed state. In this state, the gate 9 is set back by the biasing force of the biasing springs 10 so far that their back surface 9 abuts the inside at the opening 18 in the base body 4.
    In the tensioned state, the link 9 is stressed by the tensile force of the spindle 7 and with it the base body 4 is pressed with the clamping jaw 8 against the workpiece. If in this state the clamping force exerted by the clamping module 2 on the workpiece decreases, for example because the embossing teeth of the jaws impress deeper due to vibrations or other effects in the workpiece, the base body 4 with the jaw 8 automatically adjusted by the biasing springs 10 so far that the full clamping force is still applied to the workpiece. The distance 14 is reduced compared to the unstressed state. Now, if the clamping force from the above reasons wears off, the backdrop 9 remains fixed, while the main body 4 is pressed by the spring force between it and the backdrop against the workpiece and the contact pressure is maintained, thereby increasing this distance 14 something.
    The required bias of the biasing springs 10 can be adjusted from case to case by pressing the biasing screws 15. The nature, number and arrangement of the biasing springs 10 may of course vary depending on the conditions of use. It is possible in principle, instead of using disc springs coil springs or the like and also to use more or less than two pairs of biasing springs.
    The inventive clamping module 2 is characterized in that it also in workpieces made of soft materials, the force exerted on the workpiece clamping force sustains when the embossing teeth penetrate deeper due to vibrations and similar influences in the workpiece.
    Moreover, it is particularly advantageous that no spring-back occurs during the machining process, and that the inventive clamping module has the same external dimensions as conventionally designed clamping modules, so that it is readily possible to retrofit appropriately constructed clamping devices. It also enables direct stamping without retightening during component assembly.
    权利要求:
    Claims (8)
    [1]
    1. clamping module, in particular for a clamping device for machining of workpieces, which comprises a carriage formed as a base body (4) with at least one attached clamping jaw (8), wherein the base body (4) in the direction of the clamping force with a guided by this spindle (4) 7) is adjustable, characterized in that in the base body (4) in the axial direction of the spindle limited sliding gate (9) is provided, which is adjustable by the spindle (7), and effective biasing springs (10) between this gate (9) and the base body are arranged in the direction of the clamping force, by the spring force of the base body adjusts itself with the attached jaw automatically upon release of the clamping force.
    [2]
    2. Clamping module according to claim 1, characterized in that between the link (9) and the base body (4) formed distance (14) and the spring stroke of the biasing springs (10) are coordinated so that after clamping of the workpiece nor the Nachspannen permitting Verstellhub is present.
    [3]
    3. Clamping module according to claim 1 or 2, characterized in that the biasing force of the biasing springs (10) in the base body (4) can be screwed preload screws (15) is adjustable.
    [4]
    4. Clamping module according to one of claims 1 to 3, characterized in that the biasing springs (10) placed in the gate (9) in pairs symmetrically about the spindle (7) and there axially parallel to the spindle with seated in the gate guide pins (11) are.
    [5]
    5. Clamping module according to claims 3 and 4, characterized in that the biasing screws (15) in an end wall (16) of the base body (4) are screwed and back with a central blind bore (17) for receiving the guide pins (11) for the Vorspannfedern (10) are provided.
    [6]
    6. Clamping module according to claim 5, characterized in that the biasing springs (10) are designed as disc spring assemblies and the link (9) is preferably provided with four disc spring packets, each with a plurality of the same direction arranged disc springs (13).
    [7]
    7. Clamping module according to one of claims 1 to 6, characterized in that the clamping jaws (8) are formed by on the base body (4) fixed embossing inserts.
    [8]
    8. Tensioning module according to one of claims 1 to 7, characterized in that the base body (4) is provided on the underside with an opening (18) through which the link (9) can be installed therein, whileem the biasing springs (10) the front wall (16) of the base body (4) can be inserted and connected to the link (9).
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    同族专利:
    公开号 | 公开日
    DE102016005365A1|2016-11-10|
    CH711048B1|2019-06-28|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    CH00632/15A|CH711048B1|2015-05-07|2015-05-07|Clamping module, in particular for a clamping device for machining workpieces.|CH00632/15A| CH711048B1|2015-05-07|2015-05-07|Clamping module, in particular for a clamping device for machining workpieces.|
    DE102016005365.8A| DE102016005365A1|2015-05-07|2016-04-27|Clamping module, in particular for a clamping device for machining workpieces|
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