EP0259508B1 - Procédé et dispositif pour laminer des pièces à usiner en matériaux ductiles - Google Patents

Procédé et dispositif pour laminer des pièces à usiner en matériaux ductiles Download PDF

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Publication number
EP0259508B1
EP0259508B1 EP19860112447 EP86112447A EP0259508B1 EP 0259508 B1 EP0259508 B1 EP 0259508B1 EP 19860112447 EP19860112447 EP 19860112447 EP 86112447 A EP86112447 A EP 86112447A EP 0259508 B1 EP0259508 B1 EP 0259508B1
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EP
European Patent Office
Prior art keywords
workpiece
tool
rolling
feed
spacing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP19860112447
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German (de)
English (en)
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EP0259508A1 (fr
Inventor
Garri Dr.-Ing. Berstein
Günter Felgentreu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hegenscheidt MFD GmbH and Co KG
Original Assignee
Wilhelm Hegenscheidt GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wilhelm Hegenscheidt GmbH filed Critical Wilhelm Hegenscheidt GmbH
Priority to EP19860112447 priority Critical patent/EP0259508B1/fr
Priority to DE8686112447T priority patent/DE3680539D1/de
Priority to JP7052487A priority patent/JPS6376731A/ja
Publication of EP0259508A1 publication Critical patent/EP0259508A1/fr
Application granted granted Critical
Publication of EP0259508B1 publication Critical patent/EP0259508B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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

Definitions

  • the invention relates to a method for rolling workpieces made of ductile material, in which a rolling tool is fed to the workpiece and acts on it with a rolling force, and a device for carrying out this method.
  • the method described at the outset and a device for carrying out this method have already become known through a prospectus from the Zahnradfabrik Friedrichshafen AG from 1982 with the title "ZF rolling machines”.
  • the workpiece to be rolled according to this brochure is in one case an internally toothed and in the other case an externally toothed gear.
  • the machining to be carried out on the workpiece goes beyond the microgeometric range and is therefore more than leveling surface roughness. Rather, the machining produces a change in shape of the workpiece, the finished shape of the workpiece usually having to have a very high degree of dimensional accuracy.
  • the invention is therefore based on the object of proposing a method with which higher working accuracy is achieved. Furthermore, a machine for performing the method is to be proposed.
  • this object is achieved in that at least a certain distance and / or the change in the distance between the workpiece and the tool is detected from a predetermined point in the workflow and is used to control or regulate the further machining process.
  • the accuracy of the finished workpiece it is not the duration of the rolling action that is decisive, but rather essentially the distance between the workpiece and the tool.
  • This distance between workpiece and tool should therefore be detected according to the invention.
  • the further processing sequence is then controlled or regulated depending on this distance or also on the change in distance. For example, it is conceivable that a certain distance between the workpiece and the tool is first detected.
  • This can be, for example, the distance at which, as expected, the earliest possible contact between the workpiece and the tool.
  • a suitable feed speed and a suitable rolling pressure, as well as a suitable rotation speed and direction of rotation can now be provided via a machine control.
  • a finished dimension of the workpiece can be retracted and then the rolling process can be carried out will. In this way, a workpiece with high dimensional accuracy can be achieved.
  • the feed speed and / or the feed direction and / or the rolling speed is controlled or regulated depending on the distance mentioned or the change in the distance mentioned.
  • the decisive influencing variables for the accuracy of the finished workpiece influencing these variables depending on the distance or the change in distance between workpiece and tool is particularly suitable for achieving high workpiece accuracies.
  • the change in the distance is determined from the corresponding relative path between the workpiece and the tool.
  • the indirect measurement which is otherwise customary in such methods is switched off, as a result of which a further improvement in accuracy is achieved.
  • the predetermined point in time is determined by reaching at least one predetermined working parameter. This simplifies the entire procedure. For example, it is particularly easy to record the rolling force or the rolling pressure as the working parameter and then, when the predetermined rolling force or the predetermined rolling pressure has been reached, to use this size to control or regulate the further processing sequence. From this point in time, for example, the rolling force or the feed speed or the rolling speed or rolling direction can be controlled or regulated depending on the change in path or in another suitable dependency. It should be noted here that the term rolling speed also includes the rolling direction because the speed is a vector.
  • the predetermined point in time is determined by the achievement of a defined rolling force.
  • This is a particularly suitable one Size because, before reaching a certain rolling force, the workpiece is not machined relevant to the invention, and therefore regulation or control of the machining sequence as such is not necessary.
  • the feed speed and / or rolling speed be changed in steps.
  • the feed speed and / or the rolling speed can be adapted to the machining situation or to the proximity to the finished dimension of the workpiece using simple control means.
  • the feed speed and / or the rolling speed is kept constant on the respective step level.
  • the relative path between the workpiece and the tool takes place through a position detection of defined locations on the surface of the workpiece and the tool.
  • a direct measurement is hereby achieved, whereby all measurement errors which arise in the case of an indirect measurement are avoided.
  • the distance and / or the change in the distance between the workpiece and the tool is carried out by detecting the positions defined on the surface of components interacting with the workpiece and with the tool.
  • machines for rolling workpieces made of ductile material in which a rolling tool is fed to the workpiece and acts on it with a rolling force, have means for receiving a workpiece, means for rotatably receiving a tool and means around workpiece and tool to perform the rolling processing relative to each other and at least to rotate during the rolling processing.
  • these machines have at least elements of a position measuring system for detecting the positions of the workpiece and tool relative to one another.
  • attempts are made to determine the finished dimension of the workpiece over the rolling time.
  • this method does not provide satisfactory dimensional accuracy of the workpiece.
  • the machine according to the invention has means for activating the position measuring system.
  • the position measuring system works continuously when the machine is switched on.
  • the work of the measuring system can rather be limited to the time period important for the machining of the workpiece itself.
  • the means detect at least one defined size of at least one working parameter and, depending on this, activate the displacement measuring system.
  • a suitable working parameter can be selected.
  • the means mentioned are suitable for detecting the rolling force or the working pressure of a pressure medium generating the rolling force.
  • a strain gauge for detecting the rolling force or a pressure switch for detecting the pressure of a pressure medium with which the rolling force is generated could be considered as a specific embodiment of the means.
  • buttons for probing the defined locations on the surfaces mentioned.
  • buttons in particular facilitates the direct probing of the defined locations mentioned.
  • These can be both physically trained probe fingers that are physically in contact with the defined locations to carry out the measurement, as well as non-contact probes, such as laser beams, which, for example, light at the specified surfaces provided for this purpose in the event of axial or tangential contact remit, which is registered by corresponding receiving optics. From this, the location of the light-emitting location can then be determined and, if necessary. track the laser beam.
  • the tracking can then be carried out, for example, in such a way that the source of the laser light is moved as quickly as possible until there is no remit at the expected point. Then the laser source is stopped and it must be expected that due to the continued movement of the defined location to be probed, the laser beam remit by touching the defined location immediately after the laser source has stopped, so that the new location of the defined location is also known. At the same time, the necessary speed of displacement of the laser light source can be used Calculate a feed rate by averaging. This is possible with linear as well as with rotating displacement.
  • a further embodiment of the invention provides that a programmable control device is provided for programming at least one defined variable or a function of at least one working parameter. In this way, it is possible to program suitable workflows and suitable sequences of workflows and thus achieve fully automatic operation, even taking different workpieces into account.
  • the position measuring system is connected to the control device.
  • feedback to the control device is achieved in a simple manner and the necessary control loop is closed.
  • a continuously variable main drive which is connected to the control device in such a way that the feed drive and the main drive can be operated in mutual dependence.
  • FIGS 1 to 3 only show the components of the device according to the invention relevant to the invention in a basic representation, because essentially a machine of the prior art described at the outset can be assumed. A detailed description of the machine structure is therefore not necessary.
  • FIG. 1 shows a workpiece 1 that is to be rolled by the tool 2 on its outer surface.
  • the workpiece 1 is to be rolled to size by the rolling process.
  • the thick solid contour in FIG. 1 shows the position of workpiece 1 and tool 2 at the time when workpiece 1 has reached its finished dimension.
  • the original dimension of the workpiece 1 is shown in dashed lines in an exaggerated representation.
  • the position of the workpiece 1 and the tool 2 are also shown in FIG. 1 as seen in the direction of arrow I.
  • the starting position of the tool 2 is also shown in dashed lines.
  • the workpiece 1 is rotatably mounted about an associated axis of rotation 9.
  • the tool 2 is one
  • the axis of rotation 10 is rotatably supported, the axis of rotation 10 preferably being held by a fork-shaped carrier 11.
  • the fork-shaped carrier 11 is carried and moved by a roller carriage 4 shown only schematically in FIG. 1.
  • the roller carriage 4 is rigidly connected to a feed drive 5, which in the exemplary embodiment according to FIG. 1 is designed as a hydraulic cylinder, and a continuous movement of the roller carriage 4 and thus of the Carrier 11 for the tool 2 allows.
  • the speed of movement and the quantity of movement generated by the feed drive 5 are monitored and regulated by the machine control 7.
  • the tool 2 is moved radially from a retraction position (not shown) onto the workpiece 1 by actuating the feed drive 5 until the axes of rotation 9 and 10 of the workpiece 1 and tool 2 are at a distance A.
  • the tool 2 has thus moved in the direction S1.
  • a distance sensor 6 detects that the distance A has been reached and sends a corresponding pulse to the machine controller 7. This is symbolized by the line 13.
  • the machine control 7 is now initiated if necessary. to carry out the machining of the workpiece 1 with fixed or preprogrammed values in accordance with a preprogramming. Such values can be preprogrammed or entered via the input device 12, so that the machine controller 7 can interrogate the necessary information from the input device 12 as required or receive it directly from the input device 12. This is symbolized by the arrows 14.
  • the feed drive 5 receives via the machine control 7 the instruction to move the feed S2. This is the instruction to adhere to a specific feed rate or a speed function, depending on the program of the machine control 7.
  • the exchange of information between the feed drive 5 and the machine control 7 is symbolized by the arrows 15.
  • the machine control requires information about the path change Delta A, which it receives from the path sensor 6, depending on the program.
  • the information path is symbolized by line 16.
  • the axes of rotation 9 and 10 have the end distance A1, upon reaching which the feed movement S2 stops, and if necessary. after a break in movement, can be reversed towards S3.
  • the finished dimension of workpiece 1 may already be available when distance A1 is reached. But it is also possible that e.g. depending on the oversize of the blank and the modulus of elasticity of the material of the workpiece 1, the reversing movement S3 from position A 1 is required to achieve the finished size.
  • the feed rate of the feed S3 can increase with increasing distance from the starting distance A l. It may can be converted into a rapid traverse retraction even before distance A is reached.
  • the displacement measuring device which consists of the displacement sensor and of means that process the signals of the displacement sensor, the latter preferably being integrated in the machine control 7, can with the help of the machine control and if necessary.
  • the associated programming via the feed drive 5 a feed movement of different and changing speed functions are generated.
  • the feed force and thus the rolling force can also be changed, for example depending on the path.
  • FIG 2 shows a device which is constructed essentially the same as the device according to Figure 1. However, there is still one between the roller slide 4 and the feed drive 5 Rolling force sensor 3 installed.
  • This rolling force sensor 3 can have different structures. It can react directly to the rolling force, for example by means of a piezo crystal, or to the deformation generated by the rolling force in the rolling slide 4, which can be detected, for example, by a dimming measuring strip. It could also be designed as a pressure switch that monitors the pressure of the pressure medium generating the rolling force. Other facilities would also be conceivable. For example, optical means could be provided that react to the change in tension in the components that transmit the rolling force.
  • the specified place of use of the rolling force sensor 3 should also not be determined by the arrangement according to Figure 2. For example, when using a strain gauge, it could be useful to arrange it in the axis of rotation of tool 2.
  • the rolling force sensor 3 should in any case supply its information to the machine control 7, which is symbolized by the arrow 17.
  • the tool 2 can then be moved against the workpiece 1 in the direction S1 via the feed drive 5 and it can then, for example when a certain rolling pressure or a certain rolling force is reached, that the rolling control sensor 3 communicates to the machine controller 7 that it has been reached.
  • the intended processing sequence can be processed by the machine controller 7. It is conceivable that both the information from the rolling force sensor and the information from the displacement sensor represent a criterion for the processing of the machining process or for the start of this process.
  • FIG. 3 shows a device which corresponds in principle to the devices according to FIGS. 1 and 2, but is designed for internal machining.
  • the devices according to FIGS. 1 and 2 can be used to roll annular or disk-shaped bodies on their outer circumference
  • a device according to FIG. 3 can be used to machine an annular body on the inner surface of the ring.
  • the bodies mentioned do not necessarily have to have a smooth surface, but rather, and this is indicated in FIG. 3, must be toothed on the surface to be rolled.
  • the rolling of toothed bodies also shows the prior art described at the beginning. Similar to what has already been shown there, a workpiece holder 8 is provided, which can rest on a support (not specified) and can be freely rotated.
  • the workpiece 1 ⁇ designed as an internally toothed gearwheel is inserted into this workpiece holder 8.
  • the workpiece holder 8 is also designed as a ring and can be brought into contact with a thrust washer 18, which is rotatably mounted about an axis 20 parallel to the workpiece axis.
  • the axis 20 is arranged on a roller carriage 4 ⁇ , which is displaceable in the direction of arrow 19.
  • the rolling slide 4 is moved by a feed spindle 21.
  • the feed spindle 21 is driven via a gear 22 by a feed drive 5 ⁇ .
  • a rolling force sensor 3 of the type already described is arranged in the kinematic chain of the feed drive.
  • the feed drive 5 ⁇ and the rolling force sensor 3 are connected to the machine control 7, which is symbolized by the arrows 15 ⁇ and 17 ⁇ .
  • a gear wheel as a tool 2 ⁇ is rotatable on the axis 23 in the inner free space of the workpiece 1 ⁇ and is rotatably supported by a main drive (not shown in more detail).
  • flying storage act as a storage, in which the axis 23 is supported at both ends, as is symbolically shown in the embodiment of Figure 3.
  • a displacement sensor 6 is also provided in the exemplary embodiment according to FIG. 3, which monitors the distance between the axes 20 and 23 arranged parallel to one another.
  • the axis of rotation 23 of the tool 2 ⁇ is arranged in a stationary manner, while the axis of rotation 9 ⁇ of the workpiece 1 ⁇ can be displaced parallel to the axis of rotation 23.
  • This displacement is brought about by a corresponding displacement of the axis 20 with the thrust washer 18, this axis 20 being able to be moved in the manner already described by the roller carriage 4 in the direction of the arrow 19.
  • the axes 9 ⁇ and 23 can overlap.
  • the feed drive 5 ⁇ is then actuated by the machine control and thus the feed spindle 21 is moved via the transmission 22, as a result of which the rolling slide 4 is displaced depending on the direction of rotation of the feed spindle 21.
  • This distance A 1 can be determined by the displacement sensor 6 and reported to the machine control 7. But it is also possible not to specify this distance A l as a fixed distance measure, but to define it as the measure at which the tool 2 ⁇ and the workpiece 1 ⁇ have come into such mutual contact that the presence of a certain rolling force is present via the rolling force sensor 3 the machine control 7 is reported. The machine controller 7 can then interrogate, save and further use the associated distance A 1 on the displacement sensor 6.
  • Amount A 1 can be increased by the amount of delta A by a corresponding displacement of the thrust washer 18 and thus the workpiece holder 8, the distance A 1 + delta A then resulting should correspond to an end position.
  • the travel distance Delta A can again be determined by the travel sensor 6 and forwarded to the machine control 7.
  • the machine control on the feed drive 5 ⁇ specifies a certain feed speed, the compliance of which is monitored by the displacement sensor 6 via the resultant displacement change as a function of the time required for this. Possibly. Deviations are immediately recognized and corrected by the machine control 7.
  • the tool 2 ⁇ is driven by a main drive motor, not shown, whose direction of rotation is reversible.
  • Main drive motor and feed drive 5 ⁇ can advantageously be linked to one another via the machine control 7, so that the drive speed of the main drive motor and the speed of the feed are coupled to one another. This simplifies workpiece machining because it allows a specific feed size to be set depending on the rotation of the workpiece or tool and thus the material properties can be dealt with.At the same time, such a link is machine-safe, because if the main drive fails, the feed drive is automatically shut down and thus one Destruction of workpiece, tool and machine is prevented.
  • the measuring sensor 6 was arranged so that it could measure the distance between the tool axis and the workpiece axis or the distance between the tool axis and another reference component, in FIG. 3 the axis 20.
  • This is already a favorable arrangement of the displacement sensor.
  • a certain elastic deformation between the components measured in their spacing position must be accepted during machining, which also results in a certain measurement inaccuracy with regard to the workpiece dimensions.
  • the size of this measurement inaccuracy is small and can usually be accepted. Therefore it is It is conceivable that the displacement sensor 6, for example, measures the position of the components carrying the axes 23 and 20 in the exemplary embodiment according to FIG.
  • FIG. 1 a displacement sensor to be understood as an alternative embodiment is shown and designated A ⁇ .
  • This displacement sensor directly probes the workpiece and tool on their peripheral surface.
  • the position sensor designated A ⁇ is preferably not fixed itself but suspended free-floating, so that it can move freely in the direction of the relative movement of the workpiece and tool. In this position, very specific predefined points on the surface can then be touched during the movement of the two parts mentioned relative to one another.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automatic Control Of Machine Tools (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Claims (19)

  1. Procédé pour laminer des pièces à usiner en matériau ductile, dans lequel un outil de laminage est amené contre la pièce à usiner et agit sur cette pièce avec une certaine force de laminage, caractérisé en ce qu'à partir d'un instant prescrit du processus de travail, on détecte au moins une distance déterminée (A) et/ou la modification de cette distance (delta A) entre la pièce à usiner (1) et l'outil (2) et en ce qu'on l'utilise pour la commande ou le réglage du processus d'usinage suivant.
  2. Procédé selon la revendication 1, caractérisé en ce qu'en fonction de ladite distance (A) ou de ladite modification de la distance (delta A), on commande ou on règle la vitesse d'avancement et/ou le sens d'avancement (S1, S2, S3) et/ou la vitesse de laminage.
  3. Procédé selon au moins l'une des revendications 1 et 2, caractérisé en ce qu'on détermine la modification de la distance (delta A) à partir de la course relative correspondante entre la pièce à usiner (1) et l'outil (2).
  4. Procédé selon au moins la revendication 1, caractérisé en ce que l'instant prescrit est défini par le fait que l'on atteint au moins un paramètre de travail prescrit.
  5. Procédé selon au moins la revendication 1, caractérisé en ce que l'instant prescrit est défini par le fait que l'on atteint une force de laminage définie.
  6. Procédé selon au moins la revendication 2, caractérisé en ce qu'on modifie la vitesse d'avancement et/ou la vitesse de laminage par paliers.
  7. Procédé selon au moins la revendication 6, caractérisé en ce qu'on maintient la vitesse d'avancement et/ou la vitesse de laminage constante sur chaque plan de palier.
  8. Procédé selon au moins la revendication 3, caractérisé en ce que la course relative entre la pièce à usiner et l'outil résulte d'une détection de positions d'emplacement définis sur la surface de la pièce à usiner (1) et de l'outil (2).
  9. Procédé selon au moins la revendication 3, caractérisé en ce que la distance (A) et/ou la modification de la distance (delta A) entre la pièce à usiner (1) et l'outil (2) résulte de la détection des positions d'emplacements définis sur la surface d'éléments coopérant avec la pièce à usiner (1) et avec l'outil (2).
  10. Machine pour la mise en oeuvre du procédé selon les revendications 1 à 9, comportant des moyens pour recevoir une pièce à usiner, des moyens pour recevoir à rotation un outil, ainsi que des moyens pour déplacer l'un par rapport à l'autre la pièce à usiner et l'outil pour effectuer un usinage de laminage et les entraîner en rotation au moins pendant l'usinage de laminage, caractérisée en ce qu'elle présente au moins des éléments (6) d'un système de mesure de course (6,7) pour détecter les positions de la pièce à usiner (1) et de l'outil (2) l'un par rapport à l'autre.
  11. Dispositif selon la revendication 10, caractérisé par des moyens pour activer le système de mesure de course (6, 7).
  12. Dispositif selon au moins la revendication 11, caractérisé en ce que les moyens détectent au moins une valeur définie d'au moins un paramètre de travail et procèdent, en fonction de cette valeur, à l'activation du système de mesure de course (6,7).
  13. Dispositif selon au moins la revendication 12, caractérisé en ce que les moyens sont appropriés pour détecter la force de laminage ou la pression de travail d'un agent de pression produisant la force de laminage.
  14. Dispositif selon au moins l'une des revendications 10, 13, caractérisé en ce que des éléments du système de mesure de course (6,7) sont conçus en tant que palpeurs pour palper les endroits définis sur lesdites surfaces.
  15. Dispositif selon au moins l'une des revendications 10 à 14, caractérisé en ce qu'un dispositif de commande programmable (7) est prévu pour programmer au moins une valeur définie ou une fonction d'au moins un paramètre de travail.
  16. Dispositif selon au moins la revendication 15, caractérisé en ce que le système de mesure de course (6,7) est relié au dispositif de commande (7).
  17. Dispositif selon au moins l'une des revendications 10 à 16, caractérisé par un mécanisme d'avancement (5) réglable en continu, qui présente, dans une chaîne cinématique, un détecteur de force de laminage (3) qui est relié de son côté au dispositif de commande (7).
  18. Dispositif selon au moins la revendication 17, caractérisé par un mécanisme d'entraînement principal réglable en continu, qui est relié au dispositif de commande (7) de telle façon que le mécanisme d'avancement (5) et le mécanisme d'entraînement principal peuvent être actionnés d'une manière interdépendante.
  19. Dispositif selon au moins l'une des revendications 10 à 18, caractérisé en ce qu'un système de transmission de force de laminage est prévu.
EP19860112447 1986-09-09 1986-09-09 Procédé et dispositif pour laminer des pièces à usiner en matériaux ductiles Expired - Lifetime EP0259508B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP19860112447 EP0259508B1 (fr) 1986-09-09 1986-09-09 Procédé et dispositif pour laminer des pièces à usiner en matériaux ductiles
DE8686112447T DE3680539D1 (de) 1986-09-09 1986-09-09 Verfahren und einrichtung zum walzen von werkstuecken aus duktilem werkstoff.
JP7052487A JPS6376731A (ja) 1986-09-09 1987-03-26 成形できる材料から工作物を転圧するための方法及び装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19860112447 EP0259508B1 (fr) 1986-09-09 1986-09-09 Procédé et dispositif pour laminer des pièces à usiner en matériaux ductiles

Publications (2)

Publication Number Publication Date
EP0259508A1 EP0259508A1 (fr) 1988-03-16
EP0259508B1 true EP0259508B1 (fr) 1991-07-24

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Application Number Title Priority Date Filing Date
EP19860112447 Expired - Lifetime EP0259508B1 (fr) 1986-09-09 1986-09-09 Procédé et dispositif pour laminer des pièces à usiner en matériaux ductiles

Country Status (3)

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EP (1) EP0259508B1 (fr)
JP (1) JPS6376731A (fr)
DE (1) DE3680539D1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005021793B4 (de) * 2005-05-11 2007-03-29 Maschinenfabrik Alfing Kessler Gmbh Verfahren und Anlage zum Härten von Übergangsradien einer Welle

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2676668B1 (fr) * 1991-05-23 1994-07-01 Escofier Tech Sa Dispositif et procede permettant le formage a froid de cannelures sur la paroi d'une piece de revolution.
DK1621269T3 (da) * 2003-07-25 2009-12-21 M H Ct Ltd Fremgangsmåde til fremstilling af en del med indvendigt fortanding og valsemaskine
JP5625718B2 (ja) * 2010-10-08 2014-11-19 株式会社不二越 転造加工方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2029747A1 (de) * 1970-06-16 1971-12-23 Maag-Zahnräder & - Maschinen AG, Zürich (Schweiz) Antriebsvorrichtung für eine Zahnradwalzmaschine
DE2224909A1 (de) * 1972-05-20 1973-11-22 Ver Flugtechnische Werke Anordnung zur messung des spaltes eines walzenpaares fuer ein walzgeruest
JPS54152658A (en) * 1978-05-23 1979-12-01 Sumitomo Metal Ind Ltd Controlling method for number of revolutions of axial roll in ring rolling mill
JPS5823814B2 (ja) * 1978-05-31 1983-05-17 住友金属工業株式会社 リング圧延機の制御方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005021793B4 (de) * 2005-05-11 2007-03-29 Maschinenfabrik Alfing Kessler Gmbh Verfahren und Anlage zum Härten von Übergangsradien einer Welle

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Publication number Publication date
EP0259508A1 (fr) 1988-03-16
DE3680539D1 (de) 1991-08-29
JPS6376731A (ja) 1988-04-07

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