EP2886224B1 - Tête à rouler les filets - Google Patents

Tête à rouler les filets Download PDF

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Publication number
EP2886224B1
EP2886224B1 EP13197742.3A EP13197742A EP2886224B1 EP 2886224 B1 EP2886224 B1 EP 2886224B1 EP 13197742 A EP13197742 A EP 13197742A EP 2886224 B1 EP2886224 B1 EP 2886224B1
Authority
EP
European Patent Office
Prior art keywords
fastening means
thread rolling
rolling head
spring housing
head according
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.)
Active
Application number
EP13197742.3A
Other languages
German (de)
English (en)
Other versions
EP2886224A1 (fr
Inventor
Stefan Janke
Raphael Lienau
Christian Gutsche
Uwe Kretzschmann
Adam Beben
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.)
LMT Fette Werkzeugtechnik GmbH and Co KG
Original Assignee
LMT Fette Werkzeugtechnik GmbH and Co KG
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
Priority to EP13197742.3A priority Critical patent/EP2886224B1/fr
Application filed by LMT Fette Werkzeugtechnik GmbH and Co KG filed Critical LMT Fette Werkzeugtechnik GmbH and Co KG
Priority to ES13197742.3T priority patent/ES2593380T3/es
Priority to CN201480072921.7A priority patent/CN105934294B/zh
Priority to BR112016014005A priority patent/BR112016014005A2/pt
Priority to MX2016007750A priority patent/MX2016007750A/es
Priority to PCT/EP2014/077056 priority patent/WO2015091111A1/fr
Priority to US14/572,160 priority patent/US20150165501A1/en
Publication of EP2886224A1 publication Critical patent/EP2886224A1/fr
Application granted granted Critical
Publication of EP2886224B1 publication Critical patent/EP2886224B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/08—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts
    • 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
    • B21H3/042—Thread-rolling heads
    • B21H3/044—Thread-rolling heads working axially
    • 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
    • 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
    • B21H3/042—Thread-rolling heads
    • B21H3/046—Thread-rolling heads working radially

Definitions

  • the invention relates to a thread rolling head comprising a bearing unit, in which at least two profile rollers, preferably at least three profile rollers, are rotatably mounted, and a shaft portion coupled to the bearing unit, wherein the profile rollers define therebetween an insertion section into which a workpiece to be machined is insertable (US Pat. see eg US-A-2005/0210943 ).
  • Such thread rolling heads may, for example, be axial thread rolling heads or radial thread rolling heads.
  • three profile rollers distributed uniformly around an insertion section can be provided.
  • An example, cylindrical workpiece can be inserted in the longitudinal direction in the insertion.
  • Axialgewinderollköpfen processing ie the thread forming, takes place on the workpiece in the course of insertion into the insertion section.
  • the profile rolls are delivered radially onto the workpiece for machining after insertion of the workpiece.
  • an opening mechanism is also provided, with which the profile rollers between a processing position and a radially outwardly moved open position can be adjusted.
  • the rollers are moved after the machining process in the open position and the thread rolling head can be removed without collision of the workpiece. Moreover, it is known to adapt the cross section of the insertion section by adjusting the distance of the profile rollers to each other. In this way, the thread rolling head can be adapted to different workpieces to be machined and for fine adjustment.
  • a thread rolling head is known for example from DE 44 30 184 C2 ,
  • a coupling section is provided on a shaft which can be clamped in a machine tool and extends through a spring housing assembled from a plurality of components into a gear arranged on an intermediate plate of the thread rolling head.
  • a front plate is fastened via screw connections.
  • three profile rollers are each rotatably supported on an eccentric shaft.
  • the attachment takes place via arranged between the front plate and the intermediate plate spacer bolts, into which are screwed from the one side through the front plate threaded pins and on its other side comprise an external thread which extends through the intermediate plate and the spring housing through to the shaft. Screw nuts are screwed onto the external threads of the spacer bolts.
  • Another thread rolling head is known from EP 1 555 072 B1 ,
  • a clamping portion of the shaft for clamping in a processing machine on the one hand and a coupling portion of the shaft for coupling with the bearing unit of the thread rolling head on the other hand separate parts which are connected via connecting portions axially and rotationally fixed, but releasably connected to each other.
  • connecting portions axially and rotationally fixed, but releasably connected to each other.
  • the coupling portion of the shaft remains connected to the bearing unit of the thread rolling head.
  • several different thread rolling heads can be used on a clamping machine.
  • Known thread rolling heads, such as in DE 44 30 184 C2 described must be almost completely disassembled for maintenance or replacement of components and then re-assembled properly. Typical components that are subject to wear are mounting or locking plates, profile rollers or eccentric shafts. Maintenance and replacement of components in this manner is unfavorable from an economic point of view. Since this is also associated with a high expenditure of time, a correspondingly long machine downtime is the result. In addition, the replacement personnel must be regularly trained in detail.
  • the present invention seeks to provide a thread rolling head of the type mentioned, which can be used economically even with wear or changed operating requirements.
  • the invention solves the problem by the fact that the bearing unit is constructed of at least two modules each forming a functional assembly, wherein the modules each have fastening means by which they are connected to each other and against each also a function module forming modules are interchangeable, and wherein one of the modules has fastening means for connection to corresponding attachment means of the shaft portion.
  • the profile rollers define an insertion section between them, into which a workpiece to be machined can be inserted, in particular in the longitudinal direction. It can therefore be an axial thread rolling head or a radial thread rolling head. He has at least two profile rollers, preferably three or more profile rollers. The profile rollers delimit between them, for example, a cylindrical or in the insertion direction of a workpiece conically tapered insertion.
  • a shaft section is coupled to the bearing unit. With the shaft portion of the thread rolling head can be clamped in a processing machine. The shaft portion may be movable relative to the bearing unit in the axial direction.
  • the longitudinal axis of the insertion section can in particular extend coaxially to the longitudinal axis of the shaft section.
  • an axial relative movement between the workpiece and the thread rolling head is required.
  • the workpiece or the thread rolling head or both can be moved in the axial direction.
  • the machining that is to say the thread forming, takes place.
  • the cross section of the insertion section in the machining position of the profile rollers is thus at least partially smaller than the cross section of the workpiece.
  • a Radial thread rolling head is known to take place after the axial insertion of the workpiece in the insertion a radial feed movement of the profile rollers on the workpiece and thereby the processing.
  • the workpiece can be rotated, wherein the thread rolling head is arranged rotationally fixed. But it is also possible that the workpiece is arranged rotationally fixed and the thread rolling head is rotated in the course of processing.
  • the shank portion can be axially movable relative to the bearing unit. It can then cooperate in a first axial relative position with its fastening means with corresponding fastening means of the bearing unit, whereby both parts are rotatably coupled. It is also possible to provide a gear and a spring between the shank portion and the profiled rollers supporting eccentric shafts such that in a second axial relative position of the shank portion to the bearing unit, in which the fastening means are disengaged, during a rotation of the bearing unit in a first direction of rotation the shaft portion of the spring is tensioned or the tensioned spring rotates the bearing unit relative to the shaft portion in the second direction of rotation.
  • a spring can clamp the shaft portion and the bearing unit toward each other in the first relative position.
  • mechanical switching means may be provided which, when in contact with a workpiece, bring the shaft section and the bearing unit into the second relative position. In this way, opening and closing of the thread rolling head by moving the profile rollers between their machining position and a radially open open position is possible.
  • the cross-section of the insertion portion is larger than the cross-section of the workpiece, so that the thread rolling head can be removed from the workpiece after machining without colliding with the workpiece.
  • in their processing position can be provided, for example, three Profilrollen the profile rollers evenly distributed and arranged concentrically to the insertion section.
  • the longitudinal axes of the profile rollers with respect to the longitudinal axis of the insertion can also be slightly tilted.
  • the shank portion may have, in addition to the fastening means for connection to the bearing unit further fastening means with which it can be clamped in a processing machine.
  • the bearing unit which can be coupled to the shaft section is constructed from a plurality of modules, each of which forms a functional module.
  • the modules are each composed of several components and pre-assembled into a unit or a module. They are modular with each other or connected to the shaft portion and again detachable from each other or from the shaft portion and thus interchangeable with other such modules.
  • the modules each have suitable fastening means. At least over some, in particular over all of the fastening means, torques can be transmitted during operation of the thread rolling head.
  • the fastening means can in particular provide a positive connection between the modules or to the shaft portion.
  • the shaft portion may also be modular.
  • the replacement is also possible without problems by a thread rolling head customers and without precise knowledge of the assembly of the individual components of a module.
  • the fastening means are designed such that they only allow a functionally reliable, ie the function of the thread rolling head enabling assembly.
  • some or all of the modules may have attachment marks indicative of the correct mounting position.
  • the fastening means of at least two of the modules can specify an unambiguous mounting position of these modules relative to each other. It is also possible that the attachment means of at least two of the modules specify exactly two attachment positions of these modules to one another. By allowing two attachment positions, a user can mount the modules on a processing machine depending on the particular clamping situation such that, for example, a scale indicating a profile roll spacing is clearly visible.
  • the provided in this embodiment modules meet as a function module each have a function.
  • the profile roller cage supports the profile rollers in a suitable manner.
  • the spring housing carries a spring, such as a coil spring, which may be biased in the machining position of the profile rollers so that it moves after triggering suitable mechanical or other switching means in the course of their relaxation, the profile rollers from their machining position to an open position.
  • the adjustment of the profile rollers between the machining position and the open position can be done for example by a spring caused by the rotation of the spring housing and thus the bearing unit relative to the shaft portion.
  • the bearing unit relative to the shaft portion can be rotated in a corresponding manner against the bias of the spring of the spring housing, for example manually.
  • the shaft portion is also constructed of at least two modules, wherein a first module is a closing unit with first and second fastening means, and wherein a second module is a shaft with fastening means, wherein the closing unit with its first attachment means is connectable to the fastening means of the shaft, and wherein the second fastening means of the closing unit are the fastening means with which the spring housing is connectable with its first fastening means.
  • At least the closing unit likewise forms a functional assembly made up of a plurality of components. It is still possible that the Fastening means of the shaft and the second fastening means of the closing unit are formed identically. Then, the spring housing with its first attachment means can be selectively attached to the clamping unit, or if a clamping unit is not required or desired, be attached directly to the shaft.
  • the connectable with the spring housing closing unit is used to connect the bearing unit with the clamped into a machine tool shaft. It is possible that the shank portion, formed from closing unit and firmly connected to this shaft, relative to the bearing unit, in particular so the spring housing and profile roller cage, is movable in Axiahichtung. For example, in a first axial relative position between the shaft portion and the bearing unit can be prevented, for example by a suitable dog clutch, that the spring housing can rotate relative to the shaft portion by the prestressed coil spring. In a second axial relative position between shaft portion and bearing unit, which is occupied, for example, by triggering mechanical switching means, however, a rotation of the shaft portion relative to the bearing unit can be allowed causes in particular by the bias of the spring of the spring housing.
  • the dog clutch can be solved. It is also possible that the first and second fastening means of the spring housing together are axially movable relative to the other components of the spring housing.
  • the first fastening means of the spring housing can be firmly connected in the mounted position of the thread rolling head with the associated fastening means of the shaft portion, so that the first and second fastening means of the spring housing with an axial relative movement of the bearing unit to the shaft portion does not move with the bearing housing.
  • the thread rolling head can in principle have a plurality of profile roller cages configured as module according to the invention and / or different spring housings and / or different closing units and / or different shafts, which are then interchangeable in a suitable manner.
  • the profile roller cage may comprise a front plate and an intermediate plate, wherein the profile rollers are held together with them rotatably supporting eccentric shafts between the front plate and the intermediate plate.
  • the profile roller cage may further comprise a plurality of fixed to the front panel and extending between the front plate and the intermediate plate spacer bolts.
  • the spacer bolts can protrude on the side facing away from the front plate in each case with an end portion with external thread through the intermediate plate and the spring housing. From the profile roller cage facing away from the side of the spring housing screw nuts can then be screwed onto the end portions. On its opposite side, the spacer bolts can each be connected by a screw connection to the front panel.
  • spacer bolts then form part of the fastening means of the profile roller cage and the screwed onto the end portions of the spacer bolts nuts then form part of the second fastening means of the spring housing.
  • the spacer bolts can extend through suitable arcuate slots of the spring housing, so that a rotational movement between the spring housing and the profile roller cage is possible. In operation, this rotational movement can be prevented by suitable fixing means, for example screws screwed onto the spacer bolts.
  • the fastening means of the profile roller cage arranged on the intermediate plate on the side facing away from the front panel central ring gear with a External teeth include, the profile roller cage further comprises a plurality of likewise arranged on the intermediate plate on the side facing away from the front plate, meshing with the external teeth of the central ring gear external gears, and wherein the external gears are rotatably connected to one of the eccentric shafts.
  • the outer gears may each be positively or for example connected by a press fit with one of the eccentric shafts.
  • the center gear may be rotatably supported on the intermediate plate as well as the external gears.
  • a rotation of the center gear effected for example by a rotation of the spring housing, then leads to a rotation of the outer gears and thus the eccentric shafts, and vice versa. This in turn the distance between the profile rollers to each other and thus the cross section of the insertion is adjusted.
  • the second fastening means of the spring housing may further comprise a form-fitting engaging in the ring gear of the profile roller cage coupling portion.
  • the coupling portion of the spring housing may be formed as a splined spline shaft, wherein the hollow gear may have on its inner surface a plurality of extending in the axial direction of the thread rolling head engagement grooves, in which engages the spline. Furthermore, it can be provided that the pitch of the spline shaft and the pitch of the engagement grooves formed on the inner surface of the ring gear are so unequal that the coupling portion can engage in exactly one rotational position in the ring gear.
  • the first fastening means of the spring housing may have a particular shape-specific coupling portion and the second fastening means of the clamping unit may comprise a form-fitting engaged with this coupling portion of the spring housing, in particular form-specific coupling portion. It is also possible that the first Attachment means of the closing unit have a particular form-specific coupling portion, and that the fastening means of the shaft comprise a form-fitting with this coupling portion of the spring housing engaged in particular also form-specific coupling portion.
  • the distance of the profile rollers in the machining position of the profile roller cage and the spring housing under bias or relaxation of the spring housing mounted in the spring, such as a coil spring, and be changed relative to each other by changing the distance of the profile rollers.
  • the change in distance can be effected in particular by the above-described transmission of the center gear and external gears.
  • the spring housing has an annular groove extending in Umtangsraum over the outer surface, in which an actuating clamp is attached to a driver, so that via the actuating clamp rotation of the spring housing relative to the profile roller cage is possible.
  • the actuating clamp can be placed in the annular groove and clamped in a manner known per se for clamps by a screw. It can then be rotated relative to the profile roller cage via the actuating clamp the spring housing. Serves the particular a stop forming driver.
  • the actuating clamp may have an actuating portion to which the driver is releasably secured, for example by a standard screw. It can then be easily replaced the driver against other drivers or other components.
  • the in Fig. 1 shown thread rolling head according to the invention has a shaft 10 which has not shown suitable fastening means for clamping in a processing machine.
  • At his in Fig. 1 left end has the shaft fastening means in the form of a coupling portion 12.
  • the shaft 10 With this coupling portion 12, the shaft 10 releasably form-fitting manner with a corresponding and in FIG. 1 Not shown coupling portion of a clamping unit 16 are connected.
  • the coupling portions can be additionally screwed together.
  • the shaft 10 forms a first module and the clamping unit 16 forms a second module of a modular shaft section.
  • the closing unit 16 comprises second fastening means designed as a coupling section 18.
  • the thread rolling head has a bearing unit 14, which in the present case is constructed from a plurality of modules each forming a functional module.
  • a first module of the storage unit 14 is formed by a profile roller cage 36.
  • a second module is formed by a spring housing 20 in which a coil spring 22 is held, whose outer end cooperates with a slot within the spring housing 20.
  • the spring housing 20 has in Fig. 1 not to be recognized as a coupling portion formed first fastening means which can be positively connected to the connection of the spring housing 20 with the clamping unit 16 with the coupling portion 18 of the clamping unit 16.
  • the spring housing 20 On the side facing away from the first fastening means, the spring housing 20 has second fastening means in the form of a toothed splined shaft 24 as a coupling portion.
  • the spring housing 20 also has an annular groove 26 extending over its circumference, into which an actuating clamp 28 can be inserted. Via a screw 30, the actuating clamp 28 can be braced in the inserted state in the annular groove 26 and thus secured to the spring housing 20.
  • At an operating portion of the actuating clamp 28 serving as a stop driver 32 is fixed, for example, releasably by a standard screw. It is also in Fig. 1 to recognize that the spring housing 20 on its side facing away from the clamping unit 16 inner side in the example shown has three arcuate slots 34.
  • the profile roller cage 36 has an intermediate plate 38 and a front plate 40. Between the intermediate plate 38 and the front plate 40, three eccentric shafts 42 are arranged in the example shown, each of which rotatably support a profile roller, not shown.
  • the front panel 40 and the intermediate plate 38 are held in the example shown three spacer bolts 44 at a distance.
  • the spacer bolts 44 are each bolted by a screw 46 to the front panel. At their opposite end, the spacer bolts 44 each have an end portion 48 with external thread.
  • the end portions 48 project through the intermediate plate 38 and the spring housing 20 and are each guided by a slot 34 of the spring housing 20.
  • the intermediate plate 38 On its side facing away from the front panel 40, the intermediate plate 38 has in Fig.
  • the profile rollers of the profile roller cage 36 define therebetween an insertion section 50 into which a workpiece to be machined can be inserted in the longitudinal direction.
  • FIGS. 2 and 3 is the profile roller cage 36 of in Fig. 1 shown thread rolling head shown in more detail.
  • the fastening means of the profile roller cage 36 can be seen for attachment to the spring housing 20.
  • These include, in addition to the spacer bolts 44 with their end portions 48, a ring gear 52, on the inner surface of which a plurality of engagement grooves 54 extending in the axial direction are formed.
  • the splined shaft 24 of the spring housing 20 engages in the engagement grooves 54 of the ring gear 52.
  • the external gears 56 are each positively connected to one of the eccentric shafts 42.
  • a relative rotation, for example between the spring housing 20 and profile roller cage 36 leads via the positive engagement of the spline 24 in the engagement grooves 54 of the ring gear 52 to a rotation of the external gears 56 and thus the profile rollers overlapping eccentric 42.
  • This in turn leads to a change in the distance of the profile rollers to each other and thus a change in the cross section of the insertion section 50th Das Hollow gear 52 is for this purpose rotatably mounted on the intermediate plate 38 of the profile roller cage 36.
  • the profile rollers have a predetermined distance from one another, namely in a machining position.
  • the coil spring 22 is tensioned in this processing position. If a thread is formed in a workpiece which is inserted into the insertion section 50 formed between the profile rollers, the workpiece moves under rotation into the thread rolling head or the storage unit 14 until the feed is terminated by a stop, not shown, and the bearing unit 14 itself is moved further due to the feed described.
  • the bearing unit 14 of profile roller cage 36 and spring housing 20 thus moves axially relative to the shaft portion of shaft 10 and closing unit 16.
  • the spline shaft 24 and formed on the opposite side of the spring housing 20 coupling portion 60 are formed on a common part, which is axially movable relative to the other components of the spring housing 20.
  • the coupling portion 60 is fixedly bolted to the coupling portion 18 of the clamping unit 16 so that the splined portion 24 and coupling portion 60 does not move with the bearing unit.
  • the spline shaft 24 remains in engagement with the ring gear 52 of the spring housing 20 (see Fig. 3 ). In the course of this axial relative movement enter FIG.
  • the bearing unit 14 must be rotated from spring housing 20 together with closing clamp 28 and profile roller cage 36 in the opposite direction until the aforementioned dog clutch engages again. Since in the described opening movement, the bearing unit 14 has been axially removed from the clamping unit 16 with the shaft 10, a tensile force has been exerted on the coil spring 22. With the help of the pre-tension generated in this way, the jaw clutch is re-engaged. Thus, the profile rollers are back in their machining position, the thread rolling head is thus closed for a new machining operation.
  • a second embodiment of a profile roller cage 36 ' is shown. This corresponds largely to the in the FIGS. 2 and 3 It can instead of the in the FIGS. 2 and 3 shown profile roller cage 36 in the in Fig. 1 shown thread rolling head can be used.
  • profile roller cage 36 are in the profile roller cage 36 'of 4 and 5 the spacer bolts 44 'designed such that the profile roller cage 36' is partially closed over its circumference. This is desirable in some applications.
  • profile roller cage 36 is also possible, for example, instead of in the FIGS. 2 and 3 shown profile roller cage 36 in the 6 and 7 shown profile roller cage 36 "in the thread rolling head of Fig. 1 use.
  • this profile roller cage 36 largely corresponds to the in the FIGS. 2 and 3 Profiled roller cage shown 36.
  • the spacer bolts 44 "and thus also the eccentric shafts 42" formed longer, so that due to an enlarged portion between the front plate 40 and the intermediate plate 38 longer threads can be formed.
  • profile roller cage 36 it is also possible, for example, in the FIGS. 2 and 3 shown profile roller cage 36 to be replaced by a profile roller cage with changed angular arrangement of the eccentric shafts 42, for example, to form special angle.
  • Another embodiment of the thread rolling head of the Fig. 1 show as a module deployable roller cage 36 "' 8 and 9 , Again, this profile roller cage 36 "'largely corresponds to the in the FIGS. 2 and 3
  • the spacer bolts 44 "" together with wall sections 58 are designed such that a closed profile roller cage 36 "" is formed.
  • the spring housing 20 of in Fig. 1 shown thread rolling head shown in more detail In the view of Fig. 11 In this case, the first fastening means of the spring housing 20 designed as a coupling section 60 can be seen, which engage for mounting in the coupling section 18 of the closing unit 16 and are screwed thereto. In addition, in Fig. 11 to recognize three nuts 62, which are screwed to attach the profile roller cage 36 to the spring housing 20 on the end portions 48 of the spacer bolts 44. They form part of the second fastening means of the spring housing 20. In the 10 and 11 is also a fine adjustment option for adjusting the distance of the profile rollers to recognize each other in their operating position.
  • the fine adjustment comprises a guided on a threaded pin 64 sliding block 66 with a thread.
  • the threaded pin 64 is axially fixed and rotatably mounted in the spring housing 20. Turning the threaded pin 64 leads to an axial movement of the sliding block 66th
  • the sliding block 66 has a slot extending in the radial direction 68, in which, in the example shown, one of the end sections 48 of the spacer bolts 44 is guided in a radially movable manner.
  • An axial forward or backward movement of the sliding block 66 thus leads to a relative rotation between the spring housing 20 and the profile roller cage 36 and thereby via the above-explained mechanisms of the ring gear 52 and the outer gears 56 to a rotation of the eccentric shafts and thus an adjustment of the distance of the profile rollers to each other ,
  • a scale 70 can be seen, which indicates the fine adjustment of the distance of the profile rollers to each other. It is understood that for the fine adjustment first the nuts 62 must be solved.
  • FIGS. 12 and 13 the actuating clamp 28 is shown enlarged, in Fig. 13 to illustrate the driver 32 is not shown.
  • a screw thread can be seen, in which the driver 32 or other drivers or components can be screwed.
  • FIGS. 14 and 15 the closing unit 16 of in Fig. 1 shown thread rolling head shown enlarged.
  • the coupling portion 18 for connection to the spring housing 20 is in Fig. 15
  • the coupling portion 74 which engages positively in the corresponding coupling portion 12 of the shaft 10 and is screwed with this example.
  • a guided in an arcuate slot closing lever can be seen.
  • FIGS. 16 and 17 is a further embodiment of a closing unit 16 'shown, which is operated electronically in this case and thus has no closing lever, but otherwise the locking device 16 after the FIGS. 14 and 15 equivalent.
  • FIGS. 16 ' As in the FIGS.
  • Fig. 18 is the shaft 10 of the thread rolling head Fig. 1 shown enlarged.
  • Fig. 19 is a further embodiment of a shaft 10 'shown in the thread rolling head after Fig. 1 could be used.
  • the shaft 10 ' is a so-called VDI shaft according to DIN 69880 for clamping in a processing machine suitable for this purpose.
  • the shaft 10 ' is the shaft 10 'made Fig. 19 not rotationally symmetric.
  • the shaft 10 ' has only concealed fastening means in the form of a coupling portion 12 for connection to the closing unit 16.
  • Fig. 20 is another shaft 10 "shown in the thread rolling head after Fig. 1 can be used. Also this shaft 10 "has in Fig.
  • shank 10 is a so-called hollow shank taper (HSK) according to DIN 69893 for mounting in suitable machine tools for this purpose Also, this shank 10" is not rotationally symmetrical. Especially when using non-rotationally symmetrical shafts can be positioned by the actuating clamp 28 of the stop 32 serving as a variable on the circumference of the thread rolling head.
  • HSK hollow shank taper

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)
  • Metal Extraction Processes (AREA)
  • Press Drives And Press Lines (AREA)

Claims (16)

  1. Tête à rouler les filets comportant une unité de palier (14), dans laquelle au moins deux galets de profilage, de préférence au moins trois galets de profilage, sont montés à rotation, et une section de tige (10, 10', 10", 16, 16') couplée à l'unité de palier (14), les galets de profilage délimitant une section d'insertion (50) entre eux dans laquelle une pièce à traiter peut être inséré, caractérisée en ce que l'unité de palier (14) est composée d'au moins deux modules qui chacun forment un ensemble fonctionnel, les modules chacun ayant des moyens de fixation par lesquels ils peuvent être reliés l'un à l'autre et étant interchangeables contre des autres modules dont chacun forme aussi un ensemble fonctionnel, et dans lequel un des modules comporte des moyens de fixation pour le raccordement à des moyens de fixation correspondants de la section de tige (10, 10', 10", 16, 16').
  2. Tête à rouler les filets selon la revendication 1, caractérisée en ce que les moyens de fixation d'au moins deux des modules définissent une position de fixation univoque de ces modules par rapport de l'un à l'autre.
  3. Tête à rouler les filets selon la revendication 1, caractérisée en ce que les moyens de fixation d'au moins deux des modules définissent exactement deux positions de fixage de ces modules par rapport de l'un à l'autre.
  4. Tête à rouler les filets selon l'une quelconque des revendications précédentes, caractérisée en ce que
    • un premier module de l'unité de palier (14) est une cage aux galets de profilage (36, 36', 36", 36"') qui tient les galets de profilage et a des moyens de fixation,
    • un deuxième module de l'unité de palier (14) est un boitier de ressort (20) avec un ressort (22) arrangé dans le boitier de ressort (20) et avec premiers et deuxièmes moyens de fixation, le boitier de ressort (20) étant raccordable à des moyens de fixation de la section de tige (10, 10', 10", 16, 16') par ses premiers moyens de fixation, et le boitier de ressort (20) étant raccordable à des moyens de fixation du cage aux galets de profilage (36, 36', 36", 36"') par ses deuxièmes moyens de fixation.
  5. Tête à rouler les filets selon la revendication 4, caractérisée en ce que la section de tige est aussi composée d'au moins deux modules, un premier module étant une unité de fermeture (16, 16') avec premiers et deuxièmes moyens de fixation, et un deuxième module étant une tige (10, 10', 10") avec des moyens de fixation, l'unité de fermeture (16, 16') étant raccordable aux moyens de fixation de la tige (10, 10', 10") par ses premiers moyens de fixation et les deuxièmes moyens de fixation de l'unité de fermeture (16, 16') étant les moyens de fixation par lesquels le boitier de ressort (20) est raccordable à ses premiers moyens de fixation.
  6. Tête à rouler les filets selon une des revendications 4 ou 5, caractérisée en ce que la cage aux galets de profilage (36, 36', 36", 36"') a un panneau avant (40) et un panneau intermédiaire (38), les galets de profilage étant tenus entre le panneau avant (40) et le panneau intermédiaire (38) conjointement avec des tiges excentriques (42) qui les montent en rotation.
  7. Tête à rouler les filets selon la revendication 6, caractérisée en ce que la cage aux galets de profilage (36, 36', 36", 36"') a en outre plusieurs boulons d'écartement (44) qui sont fixés sur le panneau avant (40) et s'étendent entre le panneau avant (40) et le panneau intermédiaire (38).
  8. Tête à rouler les filets selon une des revendications 6 ou 7, caractérisée en ce que les moyens de fixation du cage aux galets de profilage (36, 36', 36", 36"') comportent une roue dentée creuse centrale (52) arrangée sur le panneau intermédiaire (38) sur le côté éloigné du panneau avant (40) et ayant une denture externe, la cage aux galets de profilage (36, 36', 36", 36"') comportant en outre plusieurs roues dentées externes (56), également arrangées sur le panneau intermédiaire (38) dans le côté éloigné du panneau avant (40) et s'engrenant avec la denture externe de la roue dentée creuse centrale (52), et les roues dentées externes (56) chacune étant raccordée à une des tiges excentriques (42) de manière bloquée contre la rotation.
  9. Tête à rouler les filets selon la revendication 8, caractérisée en ce que les deuxièmes moyens de fixation du boitier de ressort (20) comportent une section d'accouplement s'engrenant par assemblage de forme dans la roue dentée creuse (52) de la cage aux galets de profilage (36, 36', 36", 36"').
  10. Tête à rouler les filets selon les revendications 8 et 9, caractérisée en ce que la section d'accouplement est faite comme un arbre cannelé (24), et que la roue dentée creuse (52) a plusieurs rainures d'engagement (54) dans sa surface intérieure qui s'étendent dans la direction axiale de la tête à rouler les filets à lesquelles l'arbre cannelé (24) s'engrène.
  11. Tête à rouler les filets selon la revendication 10, caractérisée en ce que la répartition de l'arbre cannelé (24) et la répartition des rainures d'engagement (54) formées sur la surface interne de la roue dentée creuse (52) sont inégales, de sorte que la section d'accouplement peut s'engrener dans la roue dentée creuse (52) dans exactement une seule position de rotation.
  12. Tête à rouler les filets selon l'une quelconque des revendications 4 à 11, caractérisée en ce que les premiers moyens de fixation du boitier de ressort (20) ont une section d'accouplement (60), et que les deuxièmes moyens de fixation de l'unité de fermeture (16, 16') comportent une section d'accouplement (18) qui s'engrène par assemblage de forme dans cette section d'accouplement (60) du boitier de ressort (20).
  13. Tête à rouler les filets selon l'une quelconque des revendications 4 à 12, caractérisée en ce que les premiers moyens de fixation de l'unité de fermeture (16, 16') comportent une section d'accouplement (74), et que les moyens de fixation de la tige (10, 10', 10") comportent une section d'accouplement (12) qui s'engrène par assemblage de forme dans cette section d'accouplement (74) du boitier de ressort (20).
  14. Tête à rouler les filets selon l'une quelconque des revendications 4 à 13, caractérisée en ce que la cage aux galets de profilage (36, 36', 36", 36"') et le boitier de ressort (20) peuvent être tournés par rapport de l'une à l'autre, accompagné de précontrainte ou relaxation du ressort (22) qui est monté dans le boitier de ressort (20) et d'un changement de la distance des galets de profilage.
  15. Tête à rouler les filets selon la revendication 14, caractérisée en ce que le boitier de ressort (20) a une rainure annulaire (26) s'étendant à travers la surface extérieure dans le sens circonférentiel, dans laquelle un collier d'actuation (28) avec un entraineur (32) est fixé de sorte qu'une rotation du boitier de ressort (20) par rapport à la cage aux galets de profilage (36, 36', 36", 36"') est possible via le collier d'actuation (28).
  16. Tête à rouler les filets selon la revendication 15, caractérisée en ce que le collier d'actuation (28) a une section d'actuation sur laquelle l'entraineur (32) peut être fixé de manière amovible.
EP13197742.3A 2013-12-17 2013-12-17 Tête à rouler les filets Active EP2886224B1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
ES13197742.3T ES2593380T3 (es) 2013-12-17 2013-12-17 Cabezal para rodar roscas
EP13197742.3A EP2886224B1 (fr) 2013-12-17 2013-12-17 Tête à rouler les filets
BR112016014005A BR112016014005A2 (pt) 2013-12-17 2014-12-09 Cabeça de rolamento de roscas
MX2016007750A MX2016007750A (es) 2013-12-17 2014-12-09 Cabeza laminadora de roscas.
CN201480072921.7A CN105934294B (zh) 2013-12-17 2014-12-09 螺纹滚压头
PCT/EP2014/077056 WO2015091111A1 (fr) 2013-12-17 2014-12-09 Tête à rouler les filets
US14/572,160 US20150165501A1 (en) 2013-12-17 2014-12-16 Thread rolling head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP13197742.3A EP2886224B1 (fr) 2013-12-17 2013-12-17 Tête à rouler les filets

Publications (2)

Publication Number Publication Date
EP2886224A1 EP2886224A1 (fr) 2015-06-24
EP2886224B1 true EP2886224B1 (fr) 2016-06-29

Family

ID=49880424

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Application Number Title Priority Date Filing Date
EP13197742.3A Active EP2886224B1 (fr) 2013-12-17 2013-12-17 Tête à rouler les filets

Country Status (7)

Country Link
US (1) US20150165501A1 (fr)
EP (1) EP2886224B1 (fr)
CN (1) CN105934294B (fr)
BR (1) BR112016014005A2 (fr)
ES (1) ES2593380T3 (fr)
MX (1) MX2016007750A (fr)
WO (1) WO2015091111A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105382161B (zh) * 2015-12-07 2017-07-18 江苏迈能高科技有限公司 一种水箱内胆螺纹接头专用螺纹工装
CN108598544B (zh) * 2018-04-17 2020-05-26 武汉轻工大学 一种可变紧固压头及质子交换膜燃料电池装堆装置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2909087A (en) * 1956-10-17 1959-10-20 Nat Acme Co Threading implement
US3365924A (en) * 1965-10-22 1968-01-30 Nat Acme Co Taper threading implement
DE9313282U1 (de) * 1993-09-03 1993-12-09 Fette Wilhelm Gmbh Axialgewinderollkopf
DE202004000424U1 (de) * 2004-01-14 2004-04-01 Fette Gmbh Axialgewinderollkopf
US6988388B2 (en) * 2004-03-23 2006-01-24 C.J. Winter Machine Technologies, Inc. Thread rolling attachment
US7878316B2 (en) * 2007-10-09 2011-02-01 GM Global Technology Operations LLC High torque one way clutch
CN201693102U (zh) * 2009-12-24 2011-01-05 北京市建筑工程研究院 钢筋、钢棒滚轧直螺纹加工设备
CN202028724U (zh) * 2011-01-12 2011-11-09 杭州力士机械有限公司 螺纹钢滚丝机机头结构
JP2013217491A (ja) * 2012-03-14 2013-10-24 Aisin Seiki Co Ltd 自動変速機用ドグクラッチ
CN203316655U (zh) * 2013-06-18 2013-12-04 诠丰精密工具股份有限公司 辗牙刀具

Also Published As

Publication number Publication date
CN105934294A (zh) 2016-09-07
US20150165501A1 (en) 2015-06-18
EP2886224A1 (fr) 2015-06-24
BR112016014005A2 (pt) 2017-08-08
MX2016007750A (es) 2017-03-27
ES2593380T3 (es) 2016-12-09
CN105934294B (zh) 2018-04-03
WO2015091111A1 (fr) 2015-06-25

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