EP3609634B1 - Outil de roulage en plusieurs parties comprenant un palier flottant et machine de roulage - Google Patents
Outil de roulage en plusieurs parties comprenant un palier flottant et machine de roulage Download PDFInfo
- Publication number
- EP3609634B1 EP3609634B1 EP18718402.3A EP18718402A EP3609634B1 EP 3609634 B1 EP3609634 B1 EP 3609634B1 EP 18718402 A EP18718402 A EP 18718402A EP 3609634 B1 EP3609634 B1 EP 3609634B1
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- EP
- European Patent Office
- Prior art keywords
- rolling
- profile part
- base body
- rolling tool
- tool
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- 238000005096 rolling process Methods 0.000 title claims description 235
- 238000007667 floating Methods 0.000 title description 18
- 230000033001 locomotion Effects 0.000 claims description 49
- 238000007493 shaping process Methods 0.000 claims description 24
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- 238000012545 processing Methods 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 description 11
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- 229910000997 High-speed steel Inorganic materials 0.000 description 2
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Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
- B21H3/00—Making helical bodies or bodies having parts of helical shape
- B21H3/02—Making helical bodies or bodies having parts of helical shape external screw-threads ; Making dies for thread rolling
- B21H3/06—Making by means of profiled members other than rolls, e.g. reciprocating flat dies or jaws, moved longitudinally or curvilinearly with respect to each other
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
- B21H3/00—Making helical bodies or bodies having parts of helical shape
- B21H3/02—Making helical bodies or bodies having parts of helical shape external screw-threads ; Making dies for thread rolling
- B21H3/04—Making by means of profiled-rolls or die rolls
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
- B21H5/00—Making gear wheels, racks, spline shafts or worms
- B21H5/02—Making gear wheels, racks, spline shafts or worms with cylindrical outline, e.g. by means of die rolls
- B21H5/027—Making gear wheels, racks, spline shafts or worms with cylindrical outline, e.g. by means of die rolls by rolling using reciprocating flat dies, e.g. racks
Definitions
- the invention relates to a rolling tool with a base body for fastening the rolling tool in a rolling machine and a profile part for shaping a workpiece to be rolled.
- Such rolling tools are used to produce specific outer contours of rotationally symmetrical components.
- the outer contours produced in this way are, in particular, threaded sections and other profiles, such as spirals.
- the components are in particular screws, threaded bolts, ball bolts, etc.
- the blank is produced before the workpiece to be rolled is shaped. This production of the blank is mostly done by forming and in particular by cold extrusion. The subsequent shaping process is carried out by forming and in particular by cold forming.
- a curling die having a body for mounting the curling die in a curling machine and a profile member for shaping a workpiece to be rolled according to the preamble of claim 1 and a curling machine according to the preamble of claim 13 is known from US patent U.S. 1,524,327 famous.
- the base body and the profile part are designed in several pieces.
- the profile part has a considerable thickness and is many times thicker than the plate-like base body.
- the profile part is firmly connected to the base body by means of screw connections.
- the plate-like base body is form-fitting, but with play, guided in two grooves in the holder of the rolling machine for the base body. Undercuts forming the grooves.
- the entire rolling tool is movably mounted in a plane perpendicular to the rolling direction relative to the rolling machine.
- a curling tool having a body for mounting the curling tool in a curling machine and a profiling section for shaping a workpiece to be rolled is known from US patent U.S. 1,979,919 famous.
- the entire rolling tool is held in a defined position on an assigned receptacle of the rolling machine by means of two oppositely acting springs.
- the rolling tool can be moved to a limited extent against the spring forces.
- the rolling tool is permanently pressed back into its initial position due to the spring forces.
- a rolling tool with a base body for fastening the rolling tool in a rolling machine and a profile part for shaping a workpiece to be rolled is known from the German patent application DE 102 12 256 A1 famous.
- the base body and the profile part are designed in several pieces.
- the profile part has a strongly changing thickness.
- a further rolling tool with a base body for fastening the rolling tool in a rolling machine and a profiling section for shaping a workpiece to be rolled is known from the German patent application DE 195 20 699 A1 famous.
- the rolling tool can be segmented in such a way that it has a plurality of profiling sections. Different functions are assigned to the different profiling sections. In this way, individual profiling sections can be exchanged, so that the resulting outer contour of the workpiece to be machined can be changed.
- the protruding and recessed areas forming the geometry of the profiling section were introduced into a block-like blank, so that functionally the base body and the profiling section are created.
- a further rolling tool with a base body for fastening the rolling tool in a rolling machine and a profiling section for shaping a workpiece to be rolled is known from the German patent application DE 10 2004 056 921 A1 famous.
- the protruding and recessed areas of the profiling section that form the geometry of the profile part were introduced into a block-like blank, so that functionally the base body and the profile part are created.
- a further rolling tool with a base body for fastening the rolling tool in a rolling machine and a profiling section for shaping a workpiece to be rolled is known from the German patent DE 10 2004 014 255 B3 famous.
- the off-track force due to an unwanted offset between the pair of rolling dies is measured by a sensor.
- the sensor signal then enters a control circuit as a controlled variable.
- the alignment between the rolling tools one of which is fixed and one of which is movable, is changed.
- a punching machine with a movable punching plate and a method for detachably fastening a punching counter-plate by means of vacuum are known from the German patent application DE 36 20 853 A1 famous.
- the US 1,524,327A and the US 1,979,919A each relate to rolling tools with base bodies for attachment in rolling machines and profile parts for shaping workpieces, the base body and the profile part being connected to one another.
- the GB 1 282 747 A concerns an improvement for rolling tools for the production of threads.
- the invention is based on the object of significantly reducing the costs incurred in the course of refurbishing a worn rolling tool and at the same time improving the quality of the outer contour of the workpiece produced by rolling.
- the invention relates to a rolling tool with a base body for fastening the rolling tool in a rolling machine and a profile part for shaping a workpiece to be rolled.
- the base body and the profile part are designed in several pieces and can be connected to one another and separated from one another without being destroyed. In their connected position, the base body and the profile part are mounted so as to be movable relative to one another in a plane perpendicular to the rolling direction, exclusively overcoming the static friction between them.
- the invention further relates to a reeling machine according to claim 12 and a reeling machine according to claim 13.
- this is brought into contact with a pair of rolling tools.
- the rolling tools are rolling dies
- one of the rolling dies is usually firmly clamped in the rolling machine.
- the second roller die is attached to a movable receptacle - in particular a carriage - of the rolling machine. It usually has a greater length and is guided past the fixed roller die at a defined distance - the so-called roller gap.
- the workpiece to be rolled is introduced into this roll gap.
- the rolling dies each have the profiling section on their side surface facing the workpiece.
- the movable bearing between the base body and the profile part represents a floating bearing.
- the floating bearing is realized in particular on the stationary rolling die. However, it can also be implemented additionally or alternatively on the movable roller die. In particular, it is only present on one roller die. The same applies to other types of rolling tools, in particular rolls, rings or ring segments. Even if the floating mounting is only implemented on one rolling die or another rolling tool, the other rolling die or the other rolling tool can have a separate thin profile part. Thus, the advantages of easy interchangeability and material and cost savings are also used independently of the floating bearing.
- the new at least two-part rolling tool with a floating bearing between the base body and the profile part optimizes the rolling process in a number of ways.
- the optimization affects both the costs incurred in the course of reconditioning a worn rolling tool and the quality of the outer contour of the workpiece produced by rolling. This also reduces the costs incurred as part of the entire rolling process.
- This new mobile bearing bearing with a translational degree of freedom, bearing with a desired play or also floating bearing, does not affect the plane in which the rolling direction is located.
- the rolling forces have to be transmitted in the plane of the rolling direction, so that such a floating bearing is not suitable there.
- This movable Rather, storage relates to a plane running perpendicular to the rolling direction, such as that in 6 , 7 and 8th is shown.
- This bearing serves to allow a profile part of a rolling tool or both profile parts of the rolling tools a limited movement in this plane in order to reach or at least approach the ideal relative position. This is automatically achieved by allowing the relative movement, since the rolling forces are lowest in this ideal position and the profile part therefore assumes them automatically if it has the appropriate mobility.
- the base body and the profile part are preferably movably mounted relative to one another along only one axis, namely a movement axis Z.
- the profile part has a length L and a width B, the rolling direction being parallel to the length L of the profile part and the movement axis Z parallel to the width of the profile part.
- the rolling direction is the sense of the rolling direction, since the rolling direction not only indicates a position in space, but is also directed. Instead, floating mounting is about mobility in two opposite directions along one axis, i. H. back and forth.
- the movement axis Z corresponds to the longitudinal axis of a workpiece to be rolled that is held in the rolling tool 5 .
- the workpiece is z. B. is a screw, so the axis of movement Z corresponds to the longitudinal axis of the screw.
- the base body and the profile part are mounted so as to be movable relative to one another in a plane perpendicular to the rolling direction, exclusively overcoming the static friction between them.
- This means in particular that the base body and the profile part are so movably connected to one another that after a relative movement they cannot be actuated by a restoring means, e.g. B. are a spring applied back to an initial position. Instead, they are free to assume and maintain their ideal relative position to one another.
- the first workpiece is then rolled.
- the movable profile part is automatically aligned relative to the base body along the axis of movement Z. It is therefore tracked to the working point. If the difference between the preset and the work point was too large, the first workpiece is scrap.
- the rolling process now begins from the working point. So there is no return to a starting position. Due to the mobility that is still present along the movement axis Z (i.e. back and forth), the rolling tool can continue to adapt to the geometric conditions that change slightly from workpiece to workpiece. Only the static friction between the movable profile part and the base body has to be overcome. The force required for this is provided by the rolling process.
- the automatic adjustability is made easier in particular by the fact that the profile part has a low mass due to its small thickness and therefore also a low mass inertia. Furthermore, the holding forces applied can be low, so that only a small amount of force has to be applied overall to overcome the static friction.
- the extent of mobility along only one axis, namely the axis of movement, in the plane perpendicular to the rolling direction can be at least 0.1 mm, in particular between 0.1 mm and 0.3 mm, in particular between 0.1 mm and 0.2 mm, in particular about 0.1 mm.
- the holding force provided by Z a connecting means between the base body and the profile part can be designed to be adjustable.
- This holding force can be additional or alternative be designed to be deactivated in order to easily allow a replacement of a profile part that is worn or has to be replaced for other reasons.
- rolling tools are subject to wear and tear with use. In the case of rolling tools, this wear occurs in the area of their profiled surface for shaping the workpiece. If this profiling section is worn to such an extent that proper processing of the workpieces to be rolled is no longer possible, restorative post-processing must be carried out. Since the user of the rolling tool is usually not technically able to do this, the rolling tool is sent back to the rolling tool manufacturer by post or freight forwarder. Since a rolling tool has a considerable mass, which can be between about 0.5 and 50 kg, for example, depending on its size, this sending the rolling tool back and forth results in considerable freight costs.
- the rolling tool is divided into two parts, namely a base body and a profile part, and these parts are treated differently. Since the base body is normally not subject to any or at least no significant wear during use of the rolling tool, it can remain with the user of the rolling tool.
- the profile part is separated from the base body and only the profile part is sent to the maintenance technician. This significantly reduces the mass and volume of the part to be shipped and thus the freight costs.
- the fact that the base body and the profile part consist of multiple pieces means that they can be made from different materials and/or can be subjected to different machining processes. It is thus possible, for example, to produce the base body from a comparatively lower quality and therefore more cost-effective material.
- the base body can consist of mild steel, for example.
- the profile part is preferably made of a higher quality, harder and more wear-resistant material. It can be z. B. act to carbide or high-speed steel (HSS).
- the base body and the profile part are manufactured separately as separate parts, they are matched to one another in such a way that they can be joined together to form the rolling tool. This merging is done in such a way that the later separation is possible without destruction.
- the profile part can be designed as a rolled thread part with a pitch and the degree of mobility along only one axis, namely the movement axis, in the plane perpendicular to the rolling direction is at least 5%, in particular at least 8%, in particular at least 10%, in particular between 5% and 15% %, in particular about 10%. Otherwise there is the problem that several tracks are produced and thus a faulty thread is rolled.
- the base body and the profile part can be designed so that they can be connected to one another by negative pressure, magnetism or spring force.
- the desired floating mounting is realized with these non-positive connection techniques and at the same time the required contact pressure is achieved.
- the profile part can have a smaller thickness than the base body and/or 10 mm or less.
- the thickness of the profile part is preferably chosen so that the desired number of maintenance measures is possible.
- the initial height of a new profile part is therefore preferably selected in such a way that the thickness of the profile part is still sufficient for the proper functioning of the rolling tool after the desired number carried out by maintenance measures.
- the maintenance measure is in particular regrinding.
- the thickness of the profile part is preferably selected in such a way that it can absorb the rolling forces occurring during the rolling process in the rolling direction with the necessary reliability without being deformed or even breaking.
- a worn profile part is not restored but replaced with a new profile part.
- the two rolling tools are arranged in the rolling machine at a defined distance from one another - the so-called roll gap.
- the workpiece to be rolled is introduced into this roll gap.
- the thickness of the rolling die decreases, so the roll gap changes and has to be readjusted. So if a worn profile part is not repaired, but replaced by a new profile part, the set-up effort in terms of setting the roll gap is only incurred once.
- the maximum thickness of the profile part can be about half the thickness of the base body. This means that a sufficiently large number of maintenance measures can be carried out and at the same time the desired reduction in mass and weight of the profile part to be replaced is achieved. With a greatly reduced thickness of the profile part, one can also speak of a "rolled sheet".
- the profile part therefore has a comparatively small maximum thickness.
- the maximum thickness of the profile part is to be understood as meaning the thickness at its thickest point.
- the profile part often has a thickness that remains approximately the same over its length and width, so that this corresponds to the maximum thickness at the same time.
- the profile part has a thickness that changes in cross section and/or longitudinal section (as is the case, for example, in the prior art according to DE 102 12 256 A1 is the case), so this is the area of its greatest thickness. Reducing the thickness of the profile part at its thickest point results in the desired saving in material.
- the maximum thickness of the profile part can be between 4 mm and 10 mm, in particular between 4 mm and 8 mm. Such a thin profile part compared to the prior art leads to a significant reduction in the costs incurred in the repair of a worn rolling tool.
- the profile part can be arranged on the base body. So if you z. B. assumes that the rolling tool is a cuboid whose upper surface is formed by the profile part, the plane of separation between the base body and the profile part extends in a plane parallel to this upper surface inside the cuboid.
- the profile part can have a profiling section for shaping the workpiece to be rolled and a connecting section for connecting to the base body.
- the base body can have no profiling section for shaping the workpiece to be rolled, but a fastening section for fastening in a rolling machine and a connection section for connection to the profile part.
- the separation of base body and profile part is done in such a way that the shaping function is assigned solely to the profile part and the attachment function in terms of attachment in the rolling machine is assigned solely to the base body.
- the profiling section has a profile depth.
- the thickness of the profile part can be a multiple of the profile depth of the profiling section of the profile part. In particular, it is approximately twice the tread depth. As a rule, one tread depth is processed with one maintenance measure.
- the base body and the profile part can be designed so that they can be connected to one another by vacuum.
- a vacuum connection ensures the non-destructive separation of the two parts in a particularly simple manner. Connecting the base body and profile part does not require any special tools either. It only has to be ensured that the profile part and the base body are inserted into the rolling machine in such a way that the vacuum channels available for applying the vacuum can become effective.
- the base body and the profile part can also be designed to be connected to one another by magnetism or spring force. It is also possible to combine these types of connection with each other or with the vacuum connection described above.
- the rolling tool can be designed as a rolling die.
- Rolling dies are the cuboid, relatively flat rolling tools described above (see e.g. 7 the German patent application DE 10 2004 056 921 A1 the applicant).
- the rolling tool is designed as a roller, ring or ring segment.
- the core of the roller is formed by the base body with an essentially round cross section—possibly with lugs, grooves, recesses for the drive or other profiles.
- the outer peripheral surface of the roller has the profiling section and is part of the profile part, which has an annular cross-section.
- the profile part has a cross section in the shape of a segment of a circular ring. At least the connecting section of the base body is then also designed in the form of a section of a circular ring.
- the rolling tool can B. Be part of a roll/ring segment tool (see e.g. 8 the German patent application DE 10 2004 056 921 A1 the applicant). With such a roll/ring segment tool, one roll tool is designed as a round roll and the other roll tool is designed as a ring segment.
- the scroll tool can also be part of a scroll/roll tool.
- the profile part of the rolling tool can be divided into several segments. In particular, these segments then have different geometries, so that different geometries can be produced on a workpiece with the rolling tool.
- the segments are divided in particular along the longitudinal axis of the workpiece.
- a movement drive can be assigned to the rolling tool.
- the movement drive serves to support the relative movement between the profile part and the base body by motor.
- the movement drive can in particular have a motor, in particular an electric motor, and a coupling element which is operatively connected to the profile part.
- the motor drives the coupling element in a reciprocating translational or rotational manner. This Movement is transmitted to the profile part by the coupling element and thus brings about the desired translational movement of the profile part relative to the base body.
- the movement drive can have a movement sensor unit.
- the movement sensor unit detects and amplifies a relative movement between the profile part and the base body that automatically results from the rolling process. As soon as the track error force is no longer available or falls below a limit value, the motor is switched off. When the tracking error force changes direction, the direction of rotation of the motor is reversed.
- a further aspect of the invention relates to a new rolling machine with a vacuum connection or magnet for achieving the firm connection between the base body and the profile part of the new multi-piece rolling tool.
- FIG. 1 shows a schematic side view of a first exemplary embodiment of a new rolling machine 1, shown only in parts, for shaping a workpiece 2 to be rolled.
- workpiece 2 is a screw 3 act to be processed workpiece 2.
- the rolling machine 1 has two receptacles 4, each of which is used to attach a rolling tool 5 of a pair of rolling tools 5.
- the rolling tools 5 are designed as cuboid or plate-shaped rolling dies. However, they could also have a slightly different geometry.
- the respective rolling tool 5 has a base body 6 for fastening the rolling tool 5 to the mount 4 of the rolling machine 1 .
- the rolling tool 5 also has a profile part 7 for shaping the workpiece 2 to be rolled.
- the base body 6 and the profile part 7 were produced as separate elements - ie they are designed in several pieces - and were then connected to form the rolling tool 5 with each other. In this way, the base body 6 and the profile part 7 can be connected to one another and can be separated from one another in a non-destructive manner.
- the profile part 7 is arranged on the base body 6 viewed in the radial direction 8 of the workpiece 2 to be rolled.
- the profile part 7 has a profiling section 9 for shaping the workpiece 2 to be rolled.
- the profiling section 9 has a profiled outer geometry with protruding areas and recessed areas that correspond to the desired outer geometry of the workpiece 2 to be rolled.
- the profiling section 9 is used to roll the thread 10 of the screw 3.
- it could also have a different geometry and be used to roll a different outer contour.
- the profile part 7 also has a connecting section 11 for connecting to the base body 6 .
- the connecting section 11 is arranged opposite the profiling section 9 and extends essentially at a distance from and parallel thereto.
- the base body 6 has a corresponding connection section 12 for connection to the connection section 11 of the profile part 7 .
- the base body 6 has a fastening section 20 for fastening in the rolling machine 1 opposite the connecting section 12 .
- the two connecting sections 11, 12 and thus the profile part 7 and the base body 6 are connected to one another by a connecting technique that is not shown. These are negative pressure, magnetism, positive locking and/or spring force, as will be explained further below.
- the profile part 7 has a smaller thickness than the base body 6 . It is less than half the thickness of the base body 6.
- the upper rolling tool 5 is stationary and the lower rolling tool 5 is arranged and driven so as to be movable in the direction of the arrow 13.
- the arrow 13 corresponds to the direction of rolling 23 (more precisely, the direction of rolling).
- the blank of the workpiece 2 is received between the profiling sections 9 and shaped accordingly.
- This type of reshaping is known per se in the prior art and is therefore not described further here below.
- connection 2 shows a first specific type of connection between the base body 6 and the profile part 7.
- the connection is realized by applying a negative pressure.
- the base body 6 has one or more vacuum channels 17 for this purpose.
- the negative pressure channels 17 are connected in terms of pressure to the connecting section 11 of the profile part 7 so that they exert the desired negative pressure effect and the resulting connecting effect on the profile part 7 .
- the outer geometry of the profiling section 9 is 2 good to see. Furthermore, it can be seen that the connecting sections 11, 12 are each formed as flat surfaces.
- the rolling machine 1 has a vacuum source 18 which is connected to the vacuum connection 21 via a vacuum line 19 .
- the vacuum connection 21 is connected to the vacuum channel 17 . Vacuum is generated via the vacuum source 18, the vacuum line 19, the vacuum connection 21 and the vacuum channel 17 in such a way that the desired connection between the base body 6 and the profile part 7 of the rolling tool 5 is achieved.
- figure 5 12 is a view of the reeling machine 1 according to FIG 1 shown from the right, so that the workpiece 2 designed as a screw 3 and the profiling sections 9 can be seen better. It is doing but compared to 1 a connection technique is shown. Furthermore, a later position in the rolling process is shown in order to be able to show the formation of the thread 10 of the screw 3 .
- the thread 10 was shown in a simplified manner, in that the pitch typical of a thread was not taken into account in the drawing. It goes without saying, however, that it is a conventional thread with a pitch. Concerning the coincident aspects of the representation of 2 as well as the following figures, in order to avoid repetition, reference is made to the description given above 1 referred.
- each of the rolling tools 5 has a connecting means designed as a magnet holder 24 .
- the magnet holder 24 has a plurality of magnets 25 which are corresponding recesses are arranged in the base body 6.
- the desired floating mounting between the base body 6 and the associated profile part 7 is achieved by the magnets 25 .
- the base body 6 can either be designed as part of the rolling machine 1 in the sense of an integration into it or as an additional part to the rolling machine 1 .
- a further exemplary embodiment of the rolling tool 5 of the rolling machine 1 is shown.
- the connection between the base body 6 and the profile part 7 is again realized by the magnet holder 24 .
- springs 31 embodied here as disc springs 32 .
- These are attached to the base body 6, in particular by screw connections.
- other suitable springs 31 could also be involved. This achieves the desired play, so that the profile part 7 can move relative to the base body 6 in the plane perpendicular to the rolling direction 23 .
- connection between the base body 6 and the profile part 7 is realized by two form-fitting connecting elements 29 .
- This is a tongue and groove connection 30 with a game 33 (shown exaggeratedly large) between the groove and the tongue.
- This creates a loose fit, so that the profile part 7 can move in the plane perpendicular to the rolling direction 23 along the movement axis Z relative to the base body 6 .
- the profile part 7 is held on the base body 6 by means of the springs 31 .
- the tracking error force 27 is directed downwards. Due to the horizontal force 26 and this track error force 27, the resultant force 28 is directed obliquely downwards. Even with this alignment, the thread 10 does not form correctly.
- the rolling tools 5 are not designed as cuboid or plate-shaped rolling dies, but as cylindrical rollers.
- the thread 10 of the screw 3 is produced here again by way of example.
- the connecting portions 11, 12 are cylindrical surfaces which are connected to each other in a suitable manner.
- the movable connection is not further shown in this drawing. In this regard, however, reference is made to the explanations given above.
- the 12 and 13 show one of the rolling tools 5 8 in two different views.
- the cylindrical design of the connecting sections 11 and 12 can be seen in particular here.
- the movement drive 34 has a motor 35, a motor controller 36, a movement sensor unit 37 and a coupling element 38 on.
- the movement drive 34 serves to motor-assist the relative movement between the profile part 7 and the base body 6 .
- the coupling element 38 is operatively connected to the profile part 7 .
- the motor 35 drives the coupling element 38 back and forth in translation or rotation. This movement is transmitted to the profile part 7 by the coupling element 38 and thus causes the desired translational movement of the profile part 7 relative to the base body 6.
- the motion drive 34 has a motion sensor unit 37 .
- the movement sensor unit 37 detects a relative movement between the profile part 7 and the base body 6 that automatically results from the rolling process and amplifies it. As soon as the tracking error force is no longer present or falls below a limit value, the motor 35 is switched off. When the tracking error force changes direction, the direction of rotation of the motor 35 is reversed.
- FIG 15 shows schematically the connection between the coupling element 38 and the profile part 7 of the rolling tool 5 according to FIG 14 .
- FIG. 16 shows a perspective view of an exemplary embodiment of the new rolling tools 5 to explain the geometric relationships.
- the left rolling tool 5 is movable and the right rolling tool 5 is stationary. It is easy to see how the movement axis Z runs relative to the rolling tool 5 and the workpiece 2 designed as a screw 3 .
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Claims (13)
- Outil de roulage (5), comportantun corps de base (6) pour fixer l'outil de roulage (5) dans une machine de roulage (1),
etune partie profilée (7) pour façonner une pièce à rouler (2),le corps de base (6) et la partie profilée (7) étant réalisés en plusieurs pièces et pouvant être reliés l'un à l'autre et séparés l'un de l'autre de manière non destructive,caractérisé en ce quedans leur position reliée entre eux, le corps de base (6) et la partie profilée (7) sont montés de manière à pouvoir se déplacer l'un par rapport à l'autre dans un plan perpendiculaire à la direction de roulage (23) en surmontant exclusivement le frottement par adhérence entre eux. - Outil de roulage (5) selon la revendication 1,
caractérisé en ce que le degré de la mobilité le long d'un seul axe dans le plan perpendiculaire à la direction de roulage (23) est d'au moins 0,1 mm, en particulier entre 0,1 mm et 0,3 mm, en particulier entre 0,1 mm et 0,2 mm, en particulier environ 0,1 mm. - Outil de roulage (5) selon la revendication 1 ou 2,
caractérisé en ce que la partie profilée (7) est réalisée sous la forme d'une partie de roulage de filetage avec un pas, et le degré de la mobilité le long d'un seul axe dans le plan perpendiculaire à la direction de roulage (23) est d'au moins 5 %, en particulier d'au moins 8 %, en particulier d'au moins 10 %, en particulier entre 5 % et 15 %, en particulier d'environ 10 %, du pas. - Outil de roulage (5) selon l'une des revendications précédentes,
caractérisé en ce que dans leur position reliée entre eux, le corps de base (6) et la partie profilée (7) sont montés mobiles l'un par rapport à l'autre dans le plan perpendiculaire à la direction de roulage (23) le long d'un seul axe, à savoir le long d'un axe de mouvement (Z). - Outil de roulage (5) selon la revendication 4,
caractérisé en ce que la partie profilée (7) possède une longueur (L) et une largeur (B), la direction de roulage (23) étant parallèle à la longueur (L) de la partie profilée (7), et l'axe de mouvement (Z) étant parallèle à la largeur de la partie profilée (7). - Outil de roulage (5) selon la revendication 4 ou 5,
caractérisé en ce que l'axe de mouvement (Z) correspond à l'axe longitudinal d'une pièce à rouler (2) qui, lors de l'utilisation, est reçue dans l'outil de roulage (5). - Outil de roulage (5) selon l'une des revendications précédentes,
caractérisé en ce que le corps de base (6) et la partie profilée (7) sont reliés entre eux de manière mobile de telle sorte qu'après un mouvement relatif, ils ne soient pas sollicités en retour vers une position initiale par un moyen de rappel, par exemple un ressort. - Outil de roulage (5) selon l'une des revendications précédentes,
caractérisé en ce que dans la position de fonctionnement de l'outil de roulage (5) dans la machine de roulage (1), le corps de base (6) et la partie profilée (7) sont réalisés de manière à pouvoir être reliés l'un à l'autre par dépression, magnétisme et/ou force de ressort. - Outil de roulage (5) selon l'une des revendications précédentes,
caractérisé en ce que la partie profilée (7) possède une épaisseur inférieure à celle du corps de base (6) et/ou une épaisseur de 10 mm ou moins. - Outil de roulage (5) selon l'une des revendications précédentes,
caractérisé en ce que l'épaisseur maximale de la partie profilée (7), c'est-à-dire l'épaisseur à l'endroit le plus épais de la partie profilée (7), est comprise entre 4 mm et 10 mm, en particulier entre 4 mm et 8 mm. - Outil de roulage (5) selon l'une des revendications précédentes,caractérisé en ce que la partie profilée (7), vue dans la direction radiale (8) de la pièce à rouler (2), est disposée sur le corps de base (6), et/oula partie profilée (7) présente une portion de profilage (9) pour façonner la pièce à rouler (2) et une portion de liaison (11) pour la liaison avec le corps de base (6), et/oule corps de base (6) ne comporte pas de portion de profilage pour façonner la pièce à rouler (2), mais comporte une portion de fixation (20) pour la fixation dans une machine de roulage (1) et une portion de liaison (12) pour la liaison avec la partie profilée (7), et/oul'outil de roulage (5) est réalisé comme une mâchoire de roulage.
- Machine de roulage (1) comprenant un outil de roulage (5) selon l'une des revendications précédentes.
- Machine de roulage (1), comprenantun outil de roulage (5) ayant un corps de base (6) pour fixer l'outil de roulage (5) dans la machine de roulage (1) et une partie profilée (7) pour façonner une pièce à rouler (2),le corps de base (6) et la partie profilée (7) étant réalisés en plusieurs pièces et pouvant être reliés l'un à l'autre et séparés l'un de l'autre de manière non destructive,caractérisée parun raccord à dépression (21) qui est réalisé et disposé de telle sorte que la partie profilée (7) peut être reliée au corps de base (6) au moyen d'une dépression et peut être séparée de celui-ci de manière non destructive, et dans leur position reliée l'un à l'autre, le corps de base (6) et la partie profilée (7) sont montés mobiles l'un par rapport à l'autre dans un plan perpendiculaire à la direction de roulage (23), ouune pluralité d'aimants (25) qui sont disposés dans des évidements dans le corps de base (6) de telle sorte que la partie profilée (7) peut être reliée au corps de base (6) par magnétisme et peut être séparée de celui-ci de manière non destructive, et dans leur position reliée entre eux, le corps de base (6) et la partie profilée (7) sont montés mobiles l'un par rapport à l'autre dans un plan perpendiculaire à la direction de roulage (23).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20170850.0A EP3738691B1 (fr) | 2017-04-10 | 2018-04-05 | Profilé pour un outil de roulage |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202017102146.7U DE202017102146U1 (de) | 2017-04-10 | 2017-04-10 | Mehrstückiges Rollwerkzeug mit einem dünnen Profilteil |
EP17165790 | 2017-04-10 | ||
PCT/EP2018/058734 WO2018189028A2 (fr) | 2017-04-10 | 2018-04-05 | Outil de roulage en plusieurs éléments à montage flottant |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20170850.0A Division EP3738691B1 (fr) | 2017-04-10 | 2018-04-05 | Profilé pour un outil de roulage |
EP20170850.0A Division-Into EP3738691B1 (fr) | 2017-04-10 | 2018-04-05 | Profilé pour un outil de roulage |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3609634A2 EP3609634A2 (fr) | 2020-02-19 |
EP3609634B1 true EP3609634B1 (fr) | 2022-04-27 |
Family
ID=62002628
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18718402.3A Active EP3609634B1 (fr) | 2017-04-10 | 2018-04-05 | Outil de roulage en plusieurs parties comprenant un palier flottant et machine de roulage |
EP20170850.0A Active EP3738691B1 (fr) | 2017-04-10 | 2018-04-05 | Profilé pour un outil de roulage |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20170850.0A Active EP3738691B1 (fr) | 2017-04-10 | 2018-04-05 | Profilé pour un outil de roulage |
Country Status (11)
Country | Link |
---|---|
US (1) | US11376651B2 (fr) |
EP (2) | EP3609634B1 (fr) |
JP (1) | JP2020519444A (fr) |
KR (1) | KR102295928B1 (fr) |
CN (1) | CN110494232A (fr) |
CA (1) | CA3061192A1 (fr) |
ES (2) | ES2941609T3 (fr) |
MX (1) | MX2019011884A (fr) |
PL (1) | PL3738691T3 (fr) |
TW (1) | TWI780142B (fr) |
WO (1) | WO2018189028A2 (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102018113978B3 (de) * | 2018-06-12 | 2019-09-05 | Mag Ias Gmbh | Kaltwalzmaschine und Verfahren zur Erzeugung eines Profils an einem Werkstück |
CN115072388B (zh) * | 2022-07-25 | 2023-12-29 | 宁波永诚五金机械有限公司 | 一种搓丝装置 |
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-
2018
- 2018-04-05 CA CA3061192A patent/CA3061192A1/fr active Pending
- 2018-04-05 ES ES20170850T patent/ES2941609T3/es active Active
- 2018-04-05 PL PL20170850.0T patent/PL3738691T3/pl unknown
- 2018-04-05 CN CN201880024173.3A patent/CN110494232A/zh active Pending
- 2018-04-05 WO PCT/EP2018/058734 patent/WO2018189028A2/fr unknown
- 2018-04-05 MX MX2019011884A patent/MX2019011884A/es unknown
- 2018-04-05 JP JP2019548874A patent/JP2020519444A/ja active Pending
- 2018-04-05 ES ES18718402T patent/ES2922105T3/es active Active
- 2018-04-05 EP EP18718402.3A patent/EP3609634B1/fr active Active
- 2018-04-05 US US16/603,322 patent/US11376651B2/en active Active
- 2018-04-05 KR KR1020197033116A patent/KR102295928B1/ko active IP Right Grant
- 2018-04-05 EP EP20170850.0A patent/EP3738691B1/fr active Active
- 2018-04-10 TW TW107112281A patent/TWI780142B/zh active
Also Published As
Publication number | Publication date |
---|---|
TWI780142B (zh) | 2022-10-11 |
MX2019011884A (es) | 2019-11-21 |
EP3738691A2 (fr) | 2020-11-18 |
WO2018189028A2 (fr) | 2018-10-18 |
EP3738691A3 (fr) | 2021-02-17 |
CA3061192A1 (fr) | 2018-10-18 |
CN110494232A (zh) | 2019-11-22 |
ES2941609T3 (es) | 2023-05-24 |
EP3609634A2 (fr) | 2020-02-19 |
JP2020519444A (ja) | 2020-07-02 |
PL3738691T3 (pl) | 2023-05-29 |
KR102295928B1 (ko) | 2021-08-31 |
TW201842988A (zh) | 2018-12-16 |
US11376651B2 (en) | 2022-07-05 |
WO2018189028A3 (fr) | 2018-12-27 |
ES2922105T3 (es) | 2022-09-08 |
EP3738691B1 (fr) | 2023-01-18 |
KR20190134762A (ko) | 2019-12-04 |
US20200055110A1 (en) | 2020-02-20 |
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