• 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 method for producing a clamping jaw (1) having a jaw base body (2) and a clamping contour (3), comprising the steps of: providing the jaw base body (2) from a first material, applying at least one material layer (4) of a second material on the jaw body (2), forming the clamping contour (3) in the material layer (4) formed from the second material. The material properties of the first material differ from those of the second material. The second material is harder than the first material. The invention also relates to a clamping jaw manufactured using the method according to the invention.
    公开号:CH712763B1
    申请号:CH00510/17
    申请日:2017-04-13
    公开日:2021-03-31
    发明作者:Schweigert Eduard
    申请人:Roehm Gmbh；
    IPC主号:
    专利说明:

    The present invention relates to a method for producing a jaw body and a clamping contour having a clamping jaw. The present invention also relates to a clamping jaw manufactured according to the method according to the invention.
    Such clamping jaws are used in vices or other clamping devices to accommodate a workpiece to be machined between them and to clamp it, thus enabling, for example, machining of the workpiece.
    The clamping jaws are usually made from a solid material by machining - for example by milling, so that the jaw base body and the clamping contour are made from one material in one step. Although this method has proven itself, it has proven to be disadvantageous that the clamping jaws manufactured in this way have a comparatively short service life if the clamping jaws are made of a tough but relatively soft material. The clamping contour wears out relatively quickly, which means that the clamping jaws have to be replaced at relatively short intervals. On the other hand, if the clamping jaws are made of a hard material, the service life is increased compared to the use of a tough but relatively soft material, but the problem then often arises that due to the high forces that are used to clamp the workpiece to be machined , the clamping jaws tear or break in the area of the clamping contour and thus become unusable. With the tearing of the clamping jaw, there is also a not inconsiderable risk of damage to other machine parts or even of injuries to the operating personnel.
    The part of the present invention relating to the method is therefore based on the object of reducing the above-mentioned disadvantages. The object of the part of the invention relating to the clamping jaw is to provide an improved clamping jaw.
    The part of the object relating to the method is achieved according to the invention in that the method for producing a clamping jaw having a jaw base body and a clamping contour comprises the steps:Providing the jaw body made of a first material,Applying at least one material layer of a second material to the base body of the jaw,Forming at least one clamping contour in the material layer formed from the second material, the material properties of the first material differing from those of the second material, and the second material being harder than the first material.
    This ultimately ensures in the form of an at least partial generative manufacturing process in a simple manner that the clamping contour, which is formed from the material layer formed from the second material, is harder than the jaw body, which results in a very long service life of the clamping jaws to let. In addition, the first material from which the jaw base body is made can be selected from a material that is easy to machine, whereby the production of the jaw base body and thus ultimately also the clamping jaw as such is favored.
    In a particularly preferred embodiment, the first material is tougher than the second material. This reduces the risk of the clamping contour breaking out of the clamping jaw, since forces occurring through the tough jaw body can easily be absorbed and diverted. Ultimately, a clamping jaw is thus provided which enables a very long service life and at the same time reduces the risk of the clamping jaw being destroyed even with very high clamping forces.
    It has also proven to be particularly advantageous if the second material is applied to the base body as a weld bead. Applying the second material as a weld bead ensures that an inseparable, secure connection is created between the base jaw body made from the first material and the material layer made from the second material, which in turn has a positive effect on the longevity of the clamping jaw made using the manufacturing process. It has proven particularly useful here if the weld bead is applied in a straight line. In the context of the invention, however, it is also provided that the welding bead is formed from several straight sections or has a meandering course. In particular, several layers of the weld bead can also be applied to one another in order to form the material layer formed from the second material.
    In this context, it has also proven to be advantageous if the weld bead is applied by a laser welding process, preferably by a powder deposition welding process. Particularly when using a powder build-up welding process, in which the material to be applied is fed from a nozzle as powder to a laser and locally melted by the laser, the second material can be applied locally in a targeted manner, which results in a particularly uniform weld bead. In addition, the powder build-up welding process can achieve a very high degree of automation, which in turn has a positive effect on the manufacturing effort and manufacturing costs. It has also proven useful if the clamping contour is worked out mechanically from the material layer formed from the second material after application. In this context, it has also been shown to be beneficial if the mechanical machining of the clamping contour is carried out by hard milling. This allows the clamping contour to be worked out from the material layer formed from the second material in a particularly simple manner. In the context of the invention, however, it is also provided here that the clamping contour is produced simultaneously by a generative production step when the material layer produced from the second material is applied. As a result, the manufacturing process in particular can be significantly accelerated, which in turn has a positive effect on manufacturing costs. In the context of the invention, it is therefore provided that the step of forming the clamping contour takes place downstream or simultaneously with the application of the material layer formed from the second material.
    It has also been shown to be advantageous if the jaw base body is formed as a rectangular plate, on one longitudinal edge of which a shoulder is incorporated, onto which the material layer formed from the second material is applied. The clamping contour can thus be formed in the area of the shoulder, as a result of which the workpiece to be machined is ultimately only clamped in a very small area of the workpiece. In addition, the shoulder also provides support for the workpiece to be machined, which promotes its machining.
    It has also proven to be advantageous if the shoulder has an end face pointing in the effective direction of the clamping jaw and if the material layer formed from the second material covers the entire end face. This results in very defined conditions, which promotes the formation of the clamping contour.
    In order to improve gripping of the workpiece to be machined, it has also proven to be advantageous if the clamping contour is formed as a claw structure, and in this regard it has proven particularly useful if the claw structure is formed as a toothed surface with protruding tips, wherein the tips are formed by wave-shaped formations which have an undercut. As a result, the clamping contour of the clamping jaw ultimately rests on the workpiece to be clamped, and a downward force component can also be implemented, which prevents the workpiece to be machined from being pushed upwards by the clamping jaws. The clamping jaw is thus ultimately formed as a claw jaw.
    The part of the object relating to the clamping jaw is achieved according to the invention by a clamping jaw manufactured by a method according to one of claims 1 to 10, wherein the first material is made of steel and the second material is made of a hard metal. This provides a clamping jaw which is very hard in the area of the clamping contour, which means that very long service lives can be achieved, and at the same time has sufficient toughness to prevent the clamping contour from tearing or breaking out of the base body of the jaw.
    In the following the invention is explained in more detail using an embodiment shown in the drawings; 1 shows a perspective view of a clamping jaw, FIG. 2 shows a side view of the clamping jaw from FIG. 1, FIG. 3 shows a sectional view along section III-III from FIG. 2, and FIG. 4 shows a detailed view of detail IV from Figure 3
    FIG. 1 shows a perspective view of a clamping jaw 1, which is formed from a jaw base body 2 and a clamping contour 3. The clamping contour 3 is produced according to the method according to the invention in that a material layer 4 in the form of a weld bead 5 is applied to the jaw base body 2 and the clamping contour 3 is then formed from the material layer 4, namely by hard milling in the exemplary embodiment shown. While the weld bead 5 applied by a powder deposition welding process can still be seen in the left area of the jaw base body 2, the clamping contour 3 has already been worked out in the right part of the clamping jaw 1. In the exemplary embodiment shown, the jaw base body 2 is formed from a first material and the material layer 4, from which the clamping contour 3 is machined, is formed from a second material. The first material is tougher than the second material and thus the clamping contour 3 is harder than the jaw base body 2 made of the first material. Thus, a clamping jaw 1 is ultimately provided which has a long service life while at the same time reducing the risk of the clamping contour breaking out or tearing out 3 from the jaw body 2 ensures that the tough jaw body 2 can easily absorb and dissipate the forces that occur when a workpiece is clamped.
    The material layer 4 formed from the second material is applied in the form of the weld bead 5 to a shoulder 6, which is formed on a longitudinal edge 7 of the jaw base body 2 formed as a rectangular plate 8. In the jaw base body 2, receptacles 9 are also formed, which are designed to receive fastening means with which the clamping jaw 1 can be fastened and fixed, for example, on a vice. In the embodiment shown in Figure 1, the clamping jaw 1 is formed as a claw jaw 10, in which the clamping contour 3 is formed as a toothed surface with protruding tips 11, the tips 11 being formed by wave-shaped formations 12 which have an undercut 13 , as is shown more clearly in FIGS. 3 and 4, in particular below. The clamping contour 3 is thus ultimately designed as a claw structure 14 which, when clamping, exerts a downward force on the workpiece, with which the workpiece is prevented from lifting off during machining.
    From the side view of the clamping jaw 1 shown in FIG. 2 it is also particularly clear that the welding bead 5 is applied over the entire length of the shoulder 6. The side view here also shows an intermediate step of the method according to the invention for producing the clamping jaw 1, in which the formation of the clamping contour 3 from the material layer 4 formed from the second material is not yet fully completed. While the clamping contour 3 is already formed in the area of the shoulder 6 on the right half of the clamping jaw 1 shown, the welding bead 5 in the left half of the clamping jaw 1 is still unprocessed.
    Figure 3 shows a cross section through the clamping jaw 1 according to the invention along the section III-III from Figure 2. From this - and in particular from the detailed view of detail IV from Figure 3 shown in Figure 4 - it is clear that the Clamping contour 3 is formed on a vertical end face 15 of shoulder 6, which points in the direction of action of clamping jaw 1 and covers its entire height, whereby it is also provided within the scope of the invention not to apply welding bead 5 over the entire height of end face 15. The clamping contour 3 is formed as a claw structure 14 with a toothed surface with protruding tips 11, the tips 11 being formed by the wave-shaped formations 12 which have the undercut 13. In the illustrated embodiment of the clamping jaw 1 according to the invention, the first material from which the jaw base body 2 is made is steel and the second material from which the clamping contour 3 is formed is a hard metal. In this way, high standing sides of the clamping contour 3 are achieved and at the same time the risk of the clamping contour 3 breaking out of the base body 2 of the jaws is reduced.
    In the following, the method according to the invention is explained again in more detail with reference to the perspective view of the clamping jaw 1 shown in FIG. First, the jaw base body 2 is provided, which is made from the first material, which in the exemplary embodiment shown is steel. In a second step, the material layer 4 in the form of the weld bead 5 is applied to the shoulder 6 formed along the longitudinal edge 7 by a powder build-up welding process. The second material from which the material layer 4 is constructed is harder than the first material of the jaw base body 2 and in the present exemplary embodiment is a hard metal. The result of this step is shown in the clamping jaw 1 shown in FIG. 1 on the left half. The weld bead 5 covers the entire height of the end face 15 of the shoulder 6 and extends over its entire length.
    In a further step, the clamping contour 3 formed as a claw structure 14 is formed from the welding bead 5 by hard milling by the clamping contour 3 being formed as a toothed surface with protruding tips 11 from the welding bead 5, the tips 11 being formed by the undulating formations 12 which have the undercuts 13. The design of the clamping contour 3 thus creates a claw structure 14 so that when a workpiece is clamped between two or more clamping jaws 1, the tips 11 of the clamping contour 3 can press into the workpiece, the shape of the claw structure 14 also providing a pull-down effect .
    List of reference symbols
    1 clamping jaw 2 jaw body 3 clamping contour 4 material layer 5 welding bead 6 paragraph 7 longitudinal edge 8 plate 9 receptacle 10 claw jaw 11 tip 12 formation 13 undercut 14 claw structure 15 end face
    权利要求:
    Claims (11)
    [1]
    1. A method for producing a clamping jaw (1) having a jaw base body (2) and a clamping contour (3), comprising the steps of:- Providing the jaw base body (2) made of a first material,- Applying at least one material layer (4) of a second material to the jaw base body (2),- Forming the clamping contour (3) in the material layer (4) formed from the second material,wherein the material properties of the first material differ from those of the second material, and wherein the second material is harder than the first material.
    [2]
    2. The method according to claim 1, characterized in that the first material is tougher than the second material.
    [3]
    3. The method according to claim 1 or 2, characterized in that the second material is applied to the base body (2) as a weld bead (5).
    [4]
    4. The method according to claim 3, characterized in that the weld bead (5) is applied by a laser welding process, preferably by a powder deposition welding process.
    [5]
    5. The method according to any one of claims 1 to 4, characterized in that the clamping contour (3) is worked out mechanically from the material layer (4) formed from the second material after its application.
    [6]
    6. The method according to claim 5, characterized in that the mechanical machining of the clamping contour (3) takes place by hard milling.
    [7]
    7. The method according to any one of claims 1 to 6, characterized in that the jaw base body (2) is formed as a rectangular plate (8), on whose one longitudinal edge (7) a shoulder (6) is incorporated, on which the from the second material formed material layer (4) is applied.
    [8]
    8. The method according to claim 7, characterized in that the shoulder (6) has an end face (15) pointing in the effective direction of the clamping jaw (1), and that the material layer formed from the second material covers the entire end face (15).
    [9]
    9. The method according to any one of claims 1 to 8, characterized in that the clamping contour (3) is formed as a claw structure (14).
    [10]
    10. The method according to claim 9, characterized in that the claw structure (14) is formed as a toothed surface with protruding tips (11), the tips (11) being formed by wave-shaped formations (12) which have an undercut (13) .
    [11]
    11. Clamping jaw, manufactured according to a method according to one of claims 1 to 10, wherein the first material is formed from steel and the second material is formed from a hard metal.
    类似技术:
    公开号 | 公开日 | 专利标题
    EP2724817B1|2015-06-17|Clamping jaw or clamping element
    WO2008077162A1|2008-07-03|Steering rack
    EP2263812A1|2010-12-22|Method for producing stamped parts, in particular synchronous rings, coupling bodies or coupling discs
    DE102013001919A1|2014-08-07|Method for producing a through-hole in a metal body
    EP3409392A1|2018-12-05|Method for manufacturing stamped parts
    AT517009B1|2017-06-15|Device for holding a workpiece
    CH712763B1|2021-03-31|Method for producing a clamping jaw as well as correspondingly manufactured clamping jaw.
    DE102007019706B4|2010-11-04|Method for chipless production of a profile, in particular a toothing
    DE19643076C2|2001-12-13|Device for punching and joining at least two sheet metal parts in one operation
    DE102016007550B4|2019-10-02|Method and apparatus for reducing ovality of a structural element having a substantially circular cross-section
    DE2655323A1|1977-06-23|DEVICE FOR FORMING A SINGLE METALLIC WORKPIECE
    DE2736625C2|1989-12-07|
    DE102014116988A1|2015-05-28|Method for producing an assembly unit
    DE19957076B4|2006-10-19|Method and device for punching sheet metal parts from an aluminum material
    EP3705625A1|2020-09-09|Rail system
    EP3241628A1|2017-11-08|Method and device for producing a strip with protrusions
    DE102019207333A1|2020-11-26|Device and method for producing a roll profile component
    DE102009012742B4|2022-03-03|Cutting tool, insert and method of making an insert
    EP3474391B1|2020-02-12|Method for joining at least two multi-strand leads by means of ultrasound
    DE102007049866B4|2011-02-03|Method, workpiece and device for the positive clamping and fixing of workpieces by means of a blocking bead
    DE102016216255A1|2018-03-01|cutting tool
    EP3088096B1|2021-07-07|Devices and method for the pressure forming of connector bridges between parts of a board-shaped workpiece
    DE202017102146U1|2017-05-08|Multi-piece rolling tool with a thin profile part
    DE202011003535U1|2011-12-15|Device for introducing an opening into a workpiece
    DE102016219679A1|2018-04-12|reamer
    同族专利:
    公开号 | 公开日
    DE102016113848A1|2018-02-01|
    CH712763A2|2018-01-31|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE19756793B4|1997-12-19|2004-02-12|Vogel Cnc Metallbearbeitung Gmbh|Variable clamping jaw for clamping cubic workpieces to be machined|
    DE102007008132B4|2007-02-19|2021-07-22|Lang Technik Gmbh|PT system using a zero marking|
    AT506147B1|2007-12-13|2012-09-15|Rainer Erne|POSITIONING DEVICE FOR FIXING A WORKPIECE|
    DE202013103810U1|2013-08-22|2013-09-04|Röhm Gmbh|Centric clamping|
    US9700438B2|2014-04-18|2017-07-11|Biomet Manufacturing, Llc|Orthopaedic instrument for securing a bone|
    法律状态:
    2018-11-15| PCAR| Change of the address of the representative|Free format text: NEW ADDRESS: POSTFACH, 8032 ZUERICH (CH) |
    优先权:
    申请号 | 申请日 | 专利标题
    DE102016113848.7A|DE102016113848A1|2016-07-27|2016-07-27|Method for producing a clamping jaw and a correspondingly produced clamping jaw|
    [返回顶部]