EP2886224A1 - Thread rolling head - Google Patents
Thread rolling head Download PDFInfo
- Publication number
- EP2886224A1 EP2886224A1 EP13197742.3A EP13197742A EP2886224A1 EP 2886224 A1 EP2886224 A1 EP 2886224A1 EP 13197742 A EP13197742 A EP 13197742A EP 2886224 A1 EP2886224 A1 EP 2886224A1
- 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.)
- Granted
Links
- 238000005096 rolling process Methods 0.000 title claims abstract description 97
- 238000003780 insertion Methods 0.000 claims abstract description 25
- 230000037431 insertion Effects 0.000 claims abstract description 25
- 230000008878 coupling Effects 0.000 claims description 43
- 238000010168 coupling process Methods 0.000 claims description 43
- 238000005859 coupling reaction Methods 0.000 claims description 43
- 125000006850 spacer group Chemical group 0.000 claims description 21
- 238000003754 machining Methods 0.000 description 16
- 238000012545 processing Methods 0.000 description 12
- 230000008859 change Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Images
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, into which a workpiece to be machined is insertable.
- 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 the axial direction. 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 a circumferentially extending over the outer surface annular groove 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 axially extending engagement grooves 54 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 usable profile roller cage 36 '"show 8 and 9 , Again, this profile roller cage 36 '' largely corresponds to that 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 on 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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Abstract
Die Erfindung betrifft einen Gewinderollkopf umfassend eine Lagereinheit (14), in der mindestens zwei Profilrollen, vorzugsweise mindestens drei Profilrollen, drehbar gelagert sind, und einen mit der Lagereinheit (14) gekoppelten Schaftabschnitt (10, 16), wobei die Profilrollen zwischen sich einen Einführabschnitt begrenzen, in den ein zu bearbeitendes Werkstück einführbar ist, wobei die Lagereinheit (14) aus mindestens zwei jeweils eine Funktionsbaugruppe bildenden Modulen (36, 20) aufgebaut ist, wobei die Module jeweils Befestigungsmittel aufweisen, durch die sie miteinander verbindbar sind und gegen andere ebenfalls jeweils eine Funktionsbaugruppe bildende Module austauschbar sind, und wobei eines der Module Befestigungsmittel aufweist zur Verbindung mit entsprechenden Befestigungsmitteln des Schaftabschnitts.The invention relates to a thread rolling head comprising a bearing unit (14), in which at least two profile rollers, preferably at least three profile rollers, are rotatably mounted, and one with the bearing unit (14) coupled shaft portion (10, 16), wherein the profile rollers between them an insertion in which a workpiece to be machined is insertable, wherein the bearing unit (14) consists of at least two modules each forming a functional assembly (36, 20), wherein the modules each have fastening means by which they are connectable to each other and also to others in each case a functional module forming modules are interchangeable, and wherein one of the modules has fastening means for connection with corresponding fastening means of the shaft portion.
Description
Die Erfindung betrifft einen Gewinderollkopf umfassend eine Lagereinheit, in der mindestens zwei Profilrollen, vorzugsweise mindestens drei Profilrollen, drehbar gelagert sind, und einen mit der Lagereinheit gekoppelten Schaftabschnitt, wobei die Profilrollen zwischen sich einen Einführabschnitt begrenzen, in den ein zu bearbeitendes Werkstück einführbar ist.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, into which a workpiece to be machined is insertable.
Bei derartigen Gewinderollköpfen kann es sich beispielsweise um Axialgewinderollköpfe oder Radialgewinderollköpfe handeln. Es können beispielsweise drei gleichmäßig um einen Einführabschnitt verteilte Profilrollen vorgesehen sein. Ein beispielsweise zylindrisches Werkstück kann in Längsrichtung in den Einführabschnitt eingeführt werden. Bei Axialgewinderollköpfen erfolgt die Bearbeitung, also die Gewindeformung, am Werkstück im Zuge des Einführens in den Einführabschnitt. Bei Radialgewinderollköpfen werden die Profilrollen zur Bearbeitung nach dem Einführen des Werkstücks radial auf das Werkstück zugestellt. In der Regel ist darüber hinaus ein Öffnungsmechanismus vorgesehen, mit dem die Profilrollen zwischen einer Bearbeitungsstellung und einer radial nach außen verfahrenen Öffnungsstellung verstellt werden können. Die Rollen werden nach dem Bearbeitungsvorgang in die Öffnungsstellung verfahren und der Gewinderollkopf kann ohne Kollision von dem Werkstück abgezogen werden. Darüber hinaus ist es bekannt, den Querschnitt des Einführabschnitts durch Einstellung des Abstandes der Profilrollen zueinander anzupassen. Auf diese Weise kann der Gewinderollkopf an unterschiedliche zu bearbeitende Werkstücke sowie zur Feineinstellung angepasst werden.Such thread rolling heads may, for example, be axial thread rolling heads or radial thread rolling heads. For example, 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. In Axialgewinderollköpfen processing, ie the thread forming, takes place on the workpiece in the course of insertion into the insertion section. In the case of radial thread rolling heads, the profile rolls are delivered radially onto the workpiece for machining after insertion of the workpiece. In general, 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.
Bekannte Gewinderollköpfe sind aus einer Vielzahl von Einzelteilen zusammengesetzte komplexe Systeme. Bedingt ist dies durch die Anforderungen an Gewinderollköpfe, unter anderem geringe Baumaße und gleichzeitig die Abdeckung eines großen Bearbeitungsbereichs. Ein Gewinderollkopf ist beispielsweise bekannt aus
Ein weiterer Gewinderollkopf ist bekannt aus
Im Betrieb erfahren Gewinderollköpfe und damit auch die einzelnen Rollkopfbauteile Verschleiß. Verschlissene Bauteile müssen ausgetauscht werden. Aufgrund des komplexen Auf- und Zusammenbaus bekannter Gewinderollköpfe ist dies aufwendig und erfordert eine hohe Kenntnis des Gewinderollkopfes. Gerade für einen den Gewinderollkopf einsetzenden Kunden kann dies ein Problem darstellen. Bekannte Gewinderollköpfe, wie beispielsweise in
Ein Austausch von Bauteilen eines Gewinderollkopfs kann sich auch aus anderen Gründen ergeben. So werden an Gewinderollköpfe im Betrieb große Flexibilitätsanforderungen gestellt. Neben dem Rollen von metrischen Standardgewinden sollen beispielsweise auch Sondergewinde mit speziellen Steigungswinkeln, Verzahnungen und eine Vielzahl weiterer Profile gerollt werden können. Hierfür müssen jeweils zumindest die Profilrollen ausgetauscht werden, häufig auch Exzenterwellen und Distanzbolzen. Auch dies führt zu den oben erläuterten Problemen.An exchange of components of a thread rolling head can also result for other reasons. For example, great demands are placed on thread rolling heads during operation. In addition to the rolling of standard metric threads, for example, special threads with special pitch angles, gearing and a multitude of other profiles should also be able to be rolled. For this purpose, at least the profile rollers must be replaced in each case, often eccentric shafts and spacer bolts. This also leads to the problems explained above.
Ausgehend von dem erläuterten Stand der Technik liegt der Erfindung die Aufgabe zugrunde, einen Gewinderollkopf der eingangs genannten Art bereitzustellen, der auch bei Verschleiß oder geänderten Betriebsanforderungen wirtschaftlich benutzt werden kann.Based on the explained prior art, 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.
Die Erfindung löst die Aufgabe durch den Gegenstand von Anspruch 1. Vorteilhafte Ausgestaltungen finden sich in den abhängigen Ansprüchen, der Beschreibung und den Figuren.The invention achieves the object by the subject matter of claim 1. Advantageous embodiments can be found in the dependent claims, the description and the figures.
Für einen Gewinderollkopf der eingangs genannten Art löst die Erfindung die Aufgabe dadurch, dass die Lagereinheit aus mindestens zwei jeweils eine Funktionsbaugruppe bildenden Modulen aufgebaut ist, wobei die Module jeweils Befestigungsmittel aufweisen, durch die sie miteinander verbindbar sind und gegen andere ebenfalls jeweils eine Funktionsbaugruppe bildende Module austauschbar sind, und wobei eines der Module Befestigungsmittel aufweist zur Verbindung mit entsprechenden Befestigungsmitteln des Schaftabschnitts.For a thread rolling head of the type mentioned, 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.
Die Profilrollen begrenzen zwischen sich einen Einführabschnitt, in den ein zu bearbeitendes Werkstück insbesondere in Längsrichtung einführbar ist. Es kann sich also um einen Axialgewinderollkopf oder einen Radialgewinderollkopf handeln. Er besitzt mindestens zwei Profilrollen, vorzugsweise drei oder mehr Profilrollen. Die Profilrollen begrenzen zwischen sich einen beispielsweise zylindrischen oder sich in Einführrichtung eines Werkstücks kegelförmig verjüngenden Einführabschnitt. In an sich bekannter Weise ist ein Schaftabschnitt mit der Lagereinheit gekoppelt. Mit dem Schaftabschnitt kann der Gewinderollkopf in eine Bearbeitungsmaschine eingespannt werden. Der Schaftabschnitt kann gegenüber der Lagereinheit in Axialrichtung beweglich sein. Die Längsachse des Einführabschnitts kann insbesondere koaxial zur Längsachse des Schaftabschnitts verlaufen. Zum Einführen des beispielsweise zylindrischen Werkstücks in Axialrichtung in den Einführabschnitt ist eine axiale Relativbewegung zwischen dem Werkstück und dem Gewinderollkopf erforderlich. Dazu können das Werkstück oder der Gewinderollkopf oder beide in Axialrichtung bewegt werden. Bekanntlich erfolgt bei einem Axialgewinderollkopf im Zuge des Einführens des Werkstücks in den Einführabschnitt die Bearbeitung, also die Gewindeformung. In diesem Fall ist der Querschnitt des Einführabschnitts in der Bearbeitungsstellung der Profilrollen also zumindest abschnittsweise kleiner als der Querschnitt des Werkstücks. Bei einem Radialgewinderollkopf erfolgt bekanntlich nach dem axialen Einführen des Werkstücks in den Einführabschnitt eine radiale Zustellbewegung der Profilrollen auf das Werkstück und dadurch die Bearbeitung. Für die Bearbeitung kann das Werkstück gedreht werden, wobei der Gewinderollkopf drehfest angeordnet ist. Es ist aber auch möglich, dass das Werkstück drehfest angeordnet ist und der Gewinderollkopf im Zuge der Bearbeitung gedreht wird.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. In a manner known per se, 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. For introducing the, for example, cylindrical workpiece in the axial direction into the insertion section, an axial relative movement between the workpiece and the thread rolling head is required. For this purpose, the workpiece or the thread rolling head or both can be moved in the axial direction. As is known, in the case of an axial thread rolling head in the course of introducing the workpiece into the insertion section, the machining, that is to say the thread forming, takes place. In this case, 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. At 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. For machining, 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.
Der Schaftabschnitt kann wie erläutert gegenüber der Lagereinheit axial beweglich sein. Er kann dann in einer ersten axialen Relativposition mit seinen Befestigungsmitteln mit korrespondierenden Befestigungsmitteln der Lagereinheit zusammenwirken, wodurch beide Teile drehfest gekoppelt sind. Es können auch ein Getriebe und eine Feder zwischen dem Schaftabschnitt und die Profilrollen lagernden Exzenterwellen vorgesehen sein derart, dass in einer zweiten axialen Relativposition des Schaftabschnitts zu der Lagereinheit, in der die Befestigungsmittel außer Eingriff sind, bei einer Verdrehung der Lagereinheit in einer ersten Drehrichtung gegenüber dem Schaftabschnitt die Feder gespannt wird bzw. die gespannte Feder die Lagereinheit relativ zum Schaftabschnitt in die zweite Drehrichtung verdreht. Auch kann eine Feder den Schaftabschnitt und die Lagereinheit aufeinander zu in die erste Relativposition spannen. Es können beispielsweise mechanische Schaltmittel vorgesehen sein, welche bei Berührung mit einem Werkstück den Schaftabschnitt und die Lagereinheit in die zweite Relativposition bringen. Auf diese Weise ist ein Öffnen und Schließen des Gewinderollkopfes durch Bewegen der Profilrollen zwischen ihrer Bearbeitungsstellung und einer radial geöffneten Öffnungsstellung möglich. In der Öffnungsstellung ist der Querschnitt des Einführabschnitts größer als der Querschnitt des Werkstücks, so dass der Gewinderollkopf nach der Bearbeitung ohne Kollision mit dem Werkstück von diesem entfernt werden kann. Insbesondere in ihrer Bearbeitungsstellung können bei beispielsweise drei vorgesehenen Profilrollen die Profilrollen gleichmäßig verteilt und konzentrisch zu dem Einführabschnitt angeordnet sein. Natürlich können die Längsachsen der Profilrollen gegenüber der Längsachse des Einführabschnitts auch geringfügig verkippt sein. Der Schaftabschnitt kann neben den Befestigungsmitteln zur Verbindung mit der Lagereinheit weitere Befestigungsmittel besitzen, mit denen er in eine Bearbeitungsmaschine einspannbar ist.As described, 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. Also, a spring can clamp the shaft portion and the bearing unit toward each other in the first relative position. For example, 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. In the open position, 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 particular, in their processing position can be provided, for example, three Profilrollen the profile rollers evenly distributed and arranged concentrically to the insertion section. Of course, 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.
Erfindungsgemäß ist die mit dem Schaftabschnitt koppelbare Lagereinheit aus mehreren Modulen aufgebaut, die jeweils eine Funktionsbaugruppe bilden. Die Module sind jeweils aus mehreren Bauteilen zusammengesetzt und zu einer Einheit bzw. einem Modul vormontiert. Sie sind modular miteinander bzw. mit dem Schaftabschnitt verbindbar und wieder voneinander bzw. von dem Schaftabschnitt lösbar und damit gegen andere derartige Module austauschbar. Zur funktionssicheren Verbindung der Module miteinander bzw. mit dem Schaftabschnitt weisen die Module jeweils geeignete Befestigungsmittel auf. Zumindest über einige, insbesondere über sämtliche der Befestigungsmittel, können im Betrieb des Gewinderollkopfs Drehmomente übertragen werden. Die Befestigungsmittel können insbesondere eine formschlüssige Verbindung zwischen den Modulen bzw. zu dem Schaftabschnitt bereitstellen. Der Schaftabschnitt kann ebenfalls modular aufgebaut sein.According to the invention, 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. For functionally reliable connection of the modules with each other or with the shaft portion, 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.
Durch den modularen Aufbau des erfindungsgemäßen Gewinderollkopfs lässt sich dieser in wirtschaftlicher und einfacher Weise Warten und Instandsetzen sowie zur Anpassung an unterschiedliche Betriebsanforderungen umbauen. Hierzu müssen lediglich die als Trennstellen zwischen den Modulen bzw. zu dem Schaftabschnitt dienenden Befestigungsmittel gelöst werden. Sodann können ein oder mehrere jeweils eine Funktionsbaugruppe bildende Module gegen ein oder mehrere andere ebenfalls eine Funktionsbaugruppe bildende Module ausgetauscht werden, indem die entsprechenden Befestigungsmittel wieder miteinander verbunden werden. Dabei können auch optional vorgesehene Module in flexibler Weise in den Gewinderollkopf eingesetzt werden oder aus diesem entfernt werden. Im Gegensatz zu dem oben erläuterten Stand der Technik ist hierfür keine Demontage des gesamten Gewinderollkopfs bzw. seiner Lagereinheit in die jeweiligen Einzelteile erforderlich. Der Austausch von Modulen gestaltet sich einfach und zeitsparend. Unerwünscht lange Maschinenstillstandzeiten werden vermieden. Darüber hinaus ist der Austausch auch durch einen den Gewinderollkopf einsetzenden Kunden problemlos und ohne genaue Kenntnis des Zusammenbaus der einzelnen Bauteile eines Moduls möglich. Dazu sind die Befestigungsmittel derart ausgestaltet, dass sie jeweils nur einen funktionssicheren, also die Funktion des Gewinderollkopfes ermöglichenden Zusammenbau zulassen. Zur Erleichterung der Montage der Module können an einigen oder sämtlichen Modulen Befestigungsmarkierungen vorgesehen sein, die die korrekte Montageposition anzeigen.Due to the modular design of the thread rolling head according to the invention, this can be converted into an economical and simple way maintenance and repair and to adapt to different operating requirements. For this purpose, only the fastening means serving as separation points between the modules or to the shaft portion need to be solved. It is then possible to replace one or more modules each forming a functional module with one or more other modules which likewise form a functional module, by the corresponding fasteners are joined together again. Optionally provided modules can be used in a flexible manner in the thread rolling head or removed from this. In contrast to the above-described prior art, this does not require disassembly of the entire thread rolling head or its storage unit into the respective individual parts. The replacement of modules is easy and time-saving. Undesirable long machine downtime is avoided. In addition, 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. For this purpose, the fastening means are designed such that they only allow a functionally reliable, ie the function of the thread rolling head enabling assembly. To facilitate assembly of the modules, some or all of the modules may have attachment marks indicative of the correct mounting position.
Die Befestigungsmittel von mindestens zwei der Module können eine eindeutige Befestigungsposition dieser Module zueinander vorgeben. Es ist auch möglich, dass die Befestigungsmittel von mindestens zwei der Module genau zwei Befestigungspositionen dieser Module zueinander vorgeben. Durch das Erlauben zweier Befestigungspositionen kann ein Benutzer die Module abhängig von der jeweiligen Einspannsituation an einer Bearbeitungsmaschine so montieren, dass beispielsweise eine einen Profilrollenabstand anzeigende Skala gut sichtbar ist.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.
Nach einer weiteren Ausgestaltung kann vorgesehen sein,
- dass ein erstes Modul der Lagereinheit ein die Profilrollen haltender Profilrollenkäfig mit Befestigungsmitteln ist,
- dass ein zweites Modul der Lagereinheit ein Federgehäuse mit einer in dem Federgehäuse angeordneten Feder und mit ersten und zweiten Befestigungsmitteln ist, wobei das Federgehäuse mit seinen ersten Befestigungsmitteln mit Befestigungsmitteln des Schaftabschnitts verbindbar ist, und wobei das Federgehäuse mit seinen zweiten Befestigungsmitteln mit den Befestigungsmitteln des Profilrollenkäfigs verbindbar ist.
- a first module of the bearing unit is a profile roller cage holding the profile rollers with fastening means,
- a second module of the bearing unit comprises a spring housing with a spring arranged in the spring housing and with first and second springs Fastening means is, wherein the spring housing is connectable with its first fastening means with fastening means of the shaft portion, and wherein the spring housing is connectable with its second fastening means with the fastening means of the profile roller cage.
Die bei dieser Ausgestaltung vorgesehenen Module erfüllen als Funktionsbaugruppe jeweils eine Funktion. Der Profilrollenkäfig lagert die Profilrollen in geeigneter Weise. Das Federgehäuse trägt eine Feder, beispielsweise eine Spiralfeder, die in der Bearbeitungsstellung der Profilrollen vorgespannt sein kann, so dass sie nach Auslösen geeigneter mechanischer oder anderweitiger Schaltmittel im Zuge ihrer Entspannung die Profilrollen aus ihrer Bearbeitungsstellung in eine Öffnungsstellung bewegt. Das Verstellen der Profilrollen zwischen der Bearbeitungsstellung und der Öffnungsstellung kann beispielsweise durch ein durch die Feder bewirktes Verdrehen des Federgehäuses und damit der Lagereinheit relativ zu dem Schaftabschnitt erfolgen. Für ein Bewegen der Profilrollen aus der Öffnungsstellung in die Bearbeitungsstellung kann in entsprechender Weise gegen die Vorspannung der Feder des Federgehäuses beispielsweise die Lagereinheit gegenüber dem Schaftabschnitt gedreht werden, beispielsweise manuell.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. For a movement of the profile rollers from the open position to the machining position, for example, 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.
Nach einer weiteren Ausgestaltung ist es möglich, dass der Schaftabschnitt ebenfalls aus mindestens zwei Modulen aufgebaut ist, wobei ein erstes Modul eine Schließeinheit mit ersten und zweiten Befestigungsmitteln ist, und wobei ein zweites Modul ein Schaft mit Befestigungsmitteln ist, wobei die Schließeinheit mit ihren ersten Befestigungsmitteln mit den Befestigungsmitteln des Schafts verbindbar ist, und wobei die zweiten Befestigungsmittel der Schließeinheit die Befestigungsmittel sind, mit denen das Federgehäuse mit seinen ersten Befestigungsmitteln verbindbar ist. Zumindest die Schließeinheit bildet ebenfalls eine aus mehreren Bestandteilen aufgebaute Funktionsbaugruppe. Es ist weiterhin möglich, dass die Befestigungsmittel des Schafts und die zweiten Befestigungsmittel der Schließeinheit identisch ausgebildet sind. Dann kann das Federgehäuse mit seinen ersten Befestigungsmitteln wahlweise an der Schließeinheit befestigt werden, oder falls eine Schließeinheit nicht erforderlich oder gewünscht ist, direkt an dem Schaft befestigt werden.According to a further embodiment, it is possible that 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.
Die mit dem Federgehäuse verbindbare Schließeinheit dient zur Verbindung der Lagereinheit mit dem in eine Werkzeugmaschine einspannbaren Schaft. Dabei ist es möglich, dass der Schaftabschnitt, gebildet aus Schließeinheit und fest mit dieser verbundenem Schaft, gegenüber der Lagereinheit, insbesondere also dem Federgehäuse und Profilrollenkäfig, in Axialrichtung beweglich ist. Beispielsweise in einer ersten axialen Relativposition zwischen dem Schaftabschnitt und der Lagereinheit kann beispielsweise durch eine geeignete Klauenkupplung verhindert werden, dass sich das Federgehäuse relativ zu dem Schaftabschnitt durch die vorgespannte Spiralfeder drehen kann. In einer zweiten axialen Relativposition zwischen Schaftabschnitt und Lagereinheit, die beispielsweise durch Auslösen mechanischer Schaltmittel eingenommen wird, kann dagegen eine Drehung des Schaftabschnitts gegenüber der Lagereinheit zugelassen werden, bewirkt insbesondere durch die Vorspannung der Feder des Federgehäuses. Dazu kann die Klauenkupplung gelöst sein. Es ist dabei auch möglich, dass die ersten und zweiten Befestigungsmittel des Federgehäuses gemeinsam relativ zu den übrigen Bestandteilen des Federgehäuses axial beweglich sind. Die ersten Befestigungsmittel des Federgehäuses können in der montierten Position des Gewinderollkopfes fest mit den zugeordneten Befestigungsmitteln des Schaftabschnitts verbunden sein, so dass sich die ersten und zweiten Befestigungsmittel des Federgehäuses bei einer axialen Relativbewegung der Lagereinheit zu dem Schaftabschnitt nicht mit dem Lagergehäuse bewegen.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 the axial direction. 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. For this purpose, 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.
Der Gewinderollkopf kann grundsätzlich mehrere jeweils als erfindungsgemäßes Modul ausgestaltete unterschiedliche Profilrollenkäfige und/oder unterschiedliche Federgehäuse und/oder unterschiedliche Schließeinheiten und/oder unterschiedliche Schäfte besitzen, die dann in geeigneter Weise gegeneinander austauschbar sind.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.
Der Profilrollenkäfig kann eine Frontplatte und eine Zwischenplatte aufweisen, wobei die Profilrollen zusammen mit sie drehbar lagernden Exzenterwellen zwischen der Frontplatte und der Zwischenplatte gehalten sind. Der Profilrollenkäfig kann weiterhin mehrere an der Frontplatte befestigte und sich zwischen der Frontplatte und der Zwischenplatte erstreckende Distanzbolzen aufweisen. Die Distanzbolzen können auf der der Frontplatte abgewandten Seite jeweils mit einem Endabschnitt mit Außengewinde durch die Zwischenplatte und das Federgehäuse hindurch ragen. Von der dem Profilrollenkäfig abgewandten Seite des Federgehäuses können dann Schraubmuttern auf die Endabschnitte aufgeschraubt sein. Auf ihrer gegenüberliegenden Seite können die Distanzbolzen jeweils durch eine Schraubverbindung mit der Frontplatte verbunden sein. Die Distanzbolzen bilden dann einen Teil der Befestigungsmittel des Profilrollenkäfigs und die auf die Endabschnitte der Distanzbolzen aufgeschraubten Schraubenmuttern bilden dann Teil der zweiten Befestigungsmittel des Federgehäuses. Dabei können sich die Distanzbolzen durch geeignete bogenförmige Langlöcher des Federgehäuses erstrecken, so dass eine Drehbewegung zwischen dem Federgehäuse und dem Profilrollenkäfig möglich ist. Im Betrieb kann diese Drehbewegung durch geeignete Fixiermittel, beispielsweise auf die Distanzbolzen aufgeschraubte Schraubenmuttern, unterbunden werden.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. The 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. In this case, 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.
Nach einer weiteren Ausgestaltung kann vorgesehen sein, dass die Befestigungsmittel des Profilrollenkäfigs ein an der Zwischenplatte auf der der Frontplatte abgewandten Seite angeordnetes zentrales Hohlzahnrad mit einer Außenverzahnung umfassen, wobei der Profilrollenkäfig weiterhin mehrere ebenfalls an der Zwischenplatte auf der der Frontplatte abgewandten Seite angeordnete, mit der Außenverzahnung des zentralen Hohlzahnrads kämmende Außenzahnräder umfasst, und wobei die Außenzahnräder jeweils drehfest mit einer der Exzenterwellen verbunden sind. Die Außenzahnräder können jeweils zum Beispiel formschlüssig oder durch eine Presspassung mit einer der Exzenterwellen verbunden sein. Das Mittenzahnrad kann ebenso wie die Außenzahnräder drehbar an der Zwischenplatte gelagert sein. Eine Drehung des Mittenzahnrads, bewirkt beispielsweise durch eine Drehung des Federgehäuses, führt dann zu einer Drehung der Außenzahnräder und damit der Exzenterwellen, und umgekehrt. Dadurch wiederum wird der Abstand der Profilrollen zueinander und somit der Querschnitt des Einführabschnitts verstellt.According to a further embodiment it can be provided that 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.
Die zweiten Befestigungsmittel des Federgehäuses können weiterhin einen formschlüssig in das Hohlzahnrad des Profilrollenkäfigs eingreifenden Kupplungsabschnitt umfassen. Der Kupplungsabschnitt des Federgehäuses kann als verzahnte Keilwelle ausgebildet sein, wobei das Hohlzahnrad an seiner Innenfläche mehrere in Axialrichtung des Gewinderollkopfs verlaufende Eingriffsnuten aufweisen kann, in die die Keilwelle eingreift. Weiterhin kann vorgesehen sein, dass die Teilung der Keilwelle und die Teilung der an der Innenfläche des Hohlzahnrads ausgebildeten Eingriffsnuten derart ungleich ist, dass der Kupplungsabschnitt in genau einer Drehposition in das Hohlzahnrad eingreifen kann.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.
Die ersten Befestigungsmittel des Federgehäuses können einen insbesondere formspezifischen Kupplungsabschnitt aufweisen und die zweiten Befestigungsmittel der Schließeinheit können einen mit diesem Kupplungsabschnitt des Federgehäuses formschlüssig in Eingriff stehenden ebenfalls insbesondere formspezifischen Kupplungsabschnitt umfassen. Auch ist es möglich, dass die ersten Befestigungsmittel der Schließeinheit einen insbesondere formspezifischen Kupplungsabschnitt aufweisen, und dass die Befestigungsmittel des Schafts einen mit diesem Kupplungsabschnitt des Federgehäuses formschlüssig in Eingriff stehenden ebenfalls insbesondere formspezifischen Kupplungsabschnitt umfassen. Durch diese Ausgestaltungen ist in besonders einfacher Weise eine formschlüssige und damit drehfeste Befestigung der Module miteinander möglich, über die auch erhebliche Drehmomente übertragen werden können.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. By these embodiments, a positive and therefore non-rotatable mounting of the modules is possible with each other in a particularly simple manner, via which even considerable torques can be transmitted.
Zur Feineinstellung des Abstandes der Profilrollen in der Bearbeitungsstellung können der Profilrollenkäfig und das Federgehäuse unter Vorspannung bzw. Entspannung der in dem Federgehäuse gelagerten Feder, beispielsweise einer Spiralfeder, und unter Veränderung des Abstands der Profilrollen relativ zueinander drehbar sein. Die Abstandsveränderung kann insbesondere durch das oben erläuterte Getriebe aus Mittenzahnrad und Außenzahnrädern bewirkt werden.For fine adjustment of 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.
Nach einer weiteren Ausgestaltung ist es möglich, dass das Federgehäuse eine in Umfangsrichtung über die Außenfläche verlaufende Ringnut aufweist, in der eine Betätigungsschelle mit einem Mitnehmer befestigt ist, so dass über die Betätigungsschelle eine Drehung des Federgehäuses relativ zu dem Profilrollenkäfig möglich ist. Die Betätigungsschelle kann in die Ringnut gelegt werden und in für Schellen an sich bekannter Weise durch eine Verschraubung fest eingespannt werden. Es kann dann über die Betätigungsschelle das Federgehäuse relativ zu dem Profilrollenkäfig verdreht werden. Dazu dient der insbesondere einen Anschlag bildende Mitnehmer. Nach einer besonders praxisgemäßen Ausgestaltung kann die Betätigungsschelle einen Betätigungsabschnitt aufweisen, an dem der Mitnehmer lösbar befestigt ist, beispielsweise durch eine Standardschraubverbindung. Es kann dann der Mitnehmer gegen andere Mitnehmer oder andere Bauteile in einfacher Weise ausgetauscht werden. Durch das Vorsehen einer Betätigungsschelle kann der Mitnehmer in flexibler Weise in der jeweils gewünschten Drehposition an dem Federgehäuse angeordnet werden. Über den Mitnehmer kann der Gewinderollkopf nach einem Bearbeitungsvorgang manuell wieder geschlossen werden.According to a further embodiment, it is possible that the spring housing has a circumferentially extending over the outer surface annular groove 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. According to a particularly practical embodiment, 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. By providing an actuating clamp of the Driver can be arranged in a flexible manner in the respective desired rotational position of the spring housing. About the driver of the thread rolling head can be manually closed again after a machining operation.
Ausführungsbeispiele der Erfindung werden nachfolgend anhand von Figuren näher erläutert. Es zeigen schematisch:
- Fig. 1
- einen erfindungsgemäßen Gewinderollkopf nach einem ersten Ausführungsbeispiel in einer perspektivischen Explosionsdarstellung,
- Fig. 2
- den Profilrollenkäfig des in
Fig. 1 gezeigten Gewinderollkopfs in einer ersten perspektivischen Ansicht, - Fig. 3
- den Profilrollenkäfig aus
Fig. 2 in einer zweiten perspektivischen Ansicht, - Fig. 4
- einen Profilrollenkäfig für den in
Fig. 1 gezeigten Gewinderollkopf nach einem zweiten Ausführungsbeispiel in einer ersten perspektivischen Ansicht, - Fig. 5
- den Profilrollenkäfig aus
Fig. 4 in einer zweiten perspektivischen Ansicht, - Fig. 6
- einen Profilrollenkäfig für den in
Fig. 1 gezeigten Gewinderollkopf nach einem dritten Ausführungsbeispiel in einer ersten perspektivischen Ansicht, - Fig. 7
- den Profilrollenkäfig aus
Fig. 6 in einer zweiten perspektivischen Ansicht, - Fig. 8
- einen Profilrollenkäfig für den in
Fig. 1 gezeigten Gewinderollkopf nach einem vierten Ausführungsbeispiel in einer ersten perspektivischen Ansicht, - Fig. 9
- den Profilrollenkäfig aus
Fig. 8 in einer zweiten perspektivischen Ansicht, - Fig. 10
- das Federgehäuse des in
Fig. 1 gezeigten Gewinderollkopfs in einer ersten perspektivischen Ansicht, - Fig. 11
- das Federgehäuse aus
Fig. 10 in einer zweiten perspektivischen Ansicht, - Fig. 12
- die Betätigungsschelle des in
Fig. 1 gezeigten Gewinderollkopfs in einer perspektivischen Ansicht, - Fig. 13
- die Betätigungsschelle aus
Fig. 12 in einem zweiten Betriebszustand in einer perspektivischen Ansicht, - Fig. 14
- die Schließeinheit des in
Fig. 1 gezeigten Gewinderollkopfs in einer ersten perspektivischen Ansicht, - Fig. 15
- die Schließeinheit aus
Fig. 14 in einer zweiten perspektivischen Ansicht, - Fig. 16
- eine Schließeinheit für den in
Fig. 1 gezeigten Gewinderollkopf nach einem zweiten Ausführungsbeispiel in einer ersten perspektivischen Ansicht, - Fig. 17
- die Schließeinheit aus
Fig. 16 in einer zweiten perspektivischen Ansicht, - Fig. 18
- den Schaft des in
Fig. 1 gezeigten Gewinderollkopfs in einer perspektivischen Ansicht, - Fig. 19
- einen Schaft für den in
Fig. 1 gezeigten Gewinderollkopf nach einem zweiten Ausführungsbeispiel in einer perspektivischen Ansicht, und - Fig. 20
- einen Schaft für den in
Fig. 1 gezeigten Gewinderollkopf nach einem dritten Ausführungsbeispiel in einer perspektivischen Ansicht.
- Fig. 1
- a thread rolling head according to a first embodiment of the invention in a perspective exploded view,
- Fig. 2
- the profile roller cage of in
Fig. 1 shown thread rolling head in a first perspective view, - Fig. 3
- the profile roller cage off
Fig. 2 in a second perspective view, - Fig. 4
- a profile roller cage for the in
Fig. 1 shown thread rolling head according to a second embodiment in a first perspective view, - Fig. 5
- the profile roller cage off
Fig. 4 in a second perspective view, - Fig. 6
- a profile roller cage for the in
Fig. 1 shown thread rolling head according to a third embodiment in a first perspective view, - Fig. 7
- the profile roller cage off
Fig. 6 in a second perspective view, - Fig. 8
- a profile roller cage for the in
Fig. 1 shown thread rolling head according to a fourth embodiment in a first perspective view, - Fig. 9
- the profile roller cage off
Fig. 8 in a second perspective view, - Fig. 10
- the spring housing of in
Fig. 1 shown thread rolling head in a first perspective view, - Fig. 11
- the spring housing off
Fig. 10 in a second perspective view, - Fig. 12
- the actuating clamp of in
Fig. 1 shown thread rolling head in a perspective view, - Fig. 13
- the actuating clamp off
Fig. 12 in a second operating state in a perspective view, - Fig. 14
- the closing unit of in
Fig. 1 shown thread rolling head in a first perspective view, - Fig. 15
- the closing unit off
Fig. 14 in a second perspective view, - Fig. 16
- a closing unit for the in
Fig. 1 shown thread rolling head according to a second embodiment in a first perspective view, - Fig. 17
- the closing unit off
Fig. 16 in a second perspective view, - Fig. 18
- the shaft of in
Fig. 1 shown thread rolling head in a perspective view, - Fig. 19
- a shaft for the in
Fig. 1 shown thread rolling head according to a second embodiment in a perspective view, and - Fig. 20
- a shaft for the in
Fig. 1 shown thread rolling head according to a third embodiment in a perspective view.
Soweit nichts anderes angegeben ist, bezeichnen in den Figuren gleiche Bezugszeichen gleiche Gegenstände. Der in
Der Gewinderollkopf besitzt darüber hinaus eine Lagereinheit 14, die vorliegend aus mehreren jeweils eine Funktionsbaugruppe bildenden Modulen aufgebaut ist. Ein erstes Modul der Lagereinheit 14 ist durch einen Profilrollenkäfig 36 gebildet. Ein zweites Modul ist durch ein Federgehäuse 20 gebildet, in dem eine Spiralfeder 22 gehalten ist, deren äußeres Ende mit einem Schlitz innerhalb des Federgehäuses 20 zusammenwirkt. Das Federgehäuse 20 besitzt in
Der Profilrollenkäfig 36 besitzt eine Zwischenplatte 38 und eine Frontplatte 40. Zwischen der Zwischenplatte 38 und der Frontplatte 40 sind in dem gezeigten Beispiel drei Exzenterwellen 42 angeordnet, die jeweils eine nicht gezeigte Profilrolle drehbar lagern. Die Frontplatte 40 und die Zwischenplatte 38 werden durch in dem gezeigten Beispiel drei Distanzbolzen 44 auf Abstand gehalten. Die Distanzbolzen 44 sind jeweils durch eine Schraubverbindung 46 mit der Frontplatte verschraubt. An ihrem abgewandten Ende besitzen die Distanzbolzen 44 jeweils einen Endabschnitt 48 mit Außengewinde. Die Endabschnitte 48 ragen durch die Zwischenplatte 38 und das Federgehäuse 20 hindurch und sind jeweils durch ein Langloch 34 des Federgehäuses 20 geführt. An ihrer der Frontplatte 40 abgewandten Seite besitzt die Zwischenplatte 38 in
In den
Befinden sich die Keilwelle 24 des Federgehäuses 20 und das Hohlzahnrad des Profilrollenkäfigs 36 in Eingriff, haben die Profilrollen einen vorgegebenen Abstand zueinander, nämlich in einer Bearbeitungsstellung. Die Spiralfeder 22 ist in dieser Bearbeitungsstellung gespannt. Wird in ein Werkstück, das in den zwischen den Profilrollen gebildeten Einführabschnitt 50 eingeführt wird, ein Gewinde eingeformt, bewegt sich das Werkstück unter Drehung in den Gewinderollkopf bzw. die Lagereinheit 14 hinein bis der Vorschub durch einen nicht gezeigten Anschlag beendet wird und die Lagereinheit 14 selbst aufgrund des beschriebenen Vorschubs weiter bewegt wird. Die Lagereinheit 14 aus Profilrollenkäfig 36 und Federgehäuse 20 bewegt sich also axial relativ zu dem Schaftabschnitt aus Schaft 10 und Schließeinheit 16. Die Keilwelle 24 und der an der gegenüberliegenden Seite des Federgehäuses 20 ausgebildete Kupplungsabschnitt 60 (siehe
Soll der Gewinderollkopf wieder geschlossen werden, muss die Lagereinheit 14 aus Federgehäuse 20 samt Schließschelle 28 und Profilrollenkäfig 36 in die entgegengesetzte Richtung verdreht werden bis die erwähnte Klauenkupplung wieder einrastet. Da bei der beschriebenen Öffnungsbewegung die Lagereinheit 14 axial von der Schließeinheit 16 mit dem Schaft 10 entfernt wurde, ist auf die Spiralfeder 22 auch eine Zugkraft ausgeübt worden. Mithilfe der so erzeugten Vorspannung wird die Klauenkupplung wieder zum Einrasten gebracht. Damit befinden sich die Profilrollen wieder in ihrer Bearbeitungsstellung, der Gewinderollkopf ist also geschlossen für einen neuen Bearbeitungsvorgang.If the thread rolling head to be closed again, the bearing
In den
In den
Der Kulissenstein 66 besitzt ein in radialer Richtung verlaufendes Langloch 68, in dem in dem gezeigten Beispiel einer der Endabschnitte 48 der Distanzbolzen 44 radial beweglich geführt ist. Ein axiales Vor- oder Zurückbewegen des Kulissensteins 66 führt somit zu einer Relativdrehung zwischen dem Federgehäuse 20 und dem Profilrollenkäfig 36 und dadurch über die oben erläuterten Mechanismen des Hohlzahnrads 52 und der Außenzahnräder 56 zu einer Drehung der Exzenterwellen und damit einer Einstellung des Abstandes der Profilrollen zueinander. Auf der Außenseite des Federgehäuses 20 ist eine Skala 70 zu erkennen, die die Feineinstellung des Abstandes der Profilrollen zueinander anzeigt. Es versteht sich, dass für die Feineinstellung zunächst die Schraubenmuttern 62 gelöst werden müssen.The sliding
In den
In den
In
Claims (16)
Priority Applications (7)
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ES13197742.3T ES2593380T3 (en) | 2013-12-17 | 2013-12-17 | Thread Rolling Head |
EP13197742.3A EP2886224B1 (en) | 2013-12-17 | 2013-12-17 | Thread rolling head |
BR112016014005A BR112016014005A2 (en) | 2013-12-17 | 2014-12-09 | THREAD BEARING HEAD |
PCT/EP2014/077056 WO2015091111A1 (en) | 2013-12-17 | 2014-12-09 | Thread rolling head |
MX2016007750A MX2016007750A (en) | 2013-12-17 | 2014-12-09 | Thread rolling head. |
CN201480072921.7A CN105934294B (en) | 2013-12-17 | 2014-12-09 | Die head with cylindrical-die roller |
US14/572,160 US20150165501A1 (en) | 2013-12-17 | 2014-12-16 | Thread rolling head |
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EP13197742.3A EP2886224B1 (en) | 2013-12-17 | 2013-12-17 | Thread rolling head |
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EP2886224B1 EP2886224B1 (en) | 2016-06-29 |
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CN105382161B (en) * | 2015-12-07 | 2017-07-18 | 江苏迈能高科技有限公司 | A kind of inner water tank nipple special screw thread frock |
CN108598544B (en) * | 2018-04-17 | 2020-05-26 | 武汉轻工大学 | Variable fastening pressure head and proton exchange membrane fuel cell stacking device |
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DE4430184C2 (en) | 1993-09-03 | 1997-01-30 | Fette Wilhelm Gmbh | Axial thread rolling head |
US20050210943A1 (en) * | 2004-03-23 | 2005-09-29 | C.J. Winter Machine Technologies, Inc. | Thread rolling attachment |
EP1555072B1 (en) | 2004-01-14 | 2007-07-04 | Fette GmbH | Axial thread rolling head |
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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 |
US7878316B2 (en) * | 2007-10-09 | 2011-02-01 | GM Global Technology Operations LLC | High torque one way clutch |
CN201693102U (en) * | 2009-12-24 | 2011-01-05 | 北京市建筑工程研究院 | Equipment for rolling straight threads on reinforced steel bars and steel rods |
CN202028724U (en) * | 2011-01-12 | 2011-11-09 | 杭州力士机械有限公司 | Handpiece structure of deformed steel bar thread rolling machine |
JP2013217491A (en) * | 2012-03-14 | 2013-10-24 | Aisin Seiki Co Ltd | Dog clutch for automated transmission |
CN203316655U (en) * | 2013-06-18 | 2013-12-04 | 诠丰精密工具股份有限公司 | Tooth rolling cutting tool |
-
2013
- 2013-12-17 EP EP13197742.3A patent/EP2886224B1/en active Active
- 2013-12-17 ES ES13197742.3T patent/ES2593380T3/en active Active
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2014
- 2014-12-09 CN CN201480072921.7A patent/CN105934294B/en active Active
- 2014-12-09 MX MX2016007750A patent/MX2016007750A/en unknown
- 2014-12-09 BR BR112016014005A patent/BR112016014005A2/en not_active IP Right Cessation
- 2014-12-09 WO PCT/EP2014/077056 patent/WO2015091111A1/en active Application Filing
- 2014-12-16 US US14/572,160 patent/US20150165501A1/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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DE4430184C2 (en) | 1993-09-03 | 1997-01-30 | Fette Wilhelm Gmbh | Axial thread rolling head |
EP1555072B1 (en) | 2004-01-14 | 2007-07-04 | Fette GmbH | Axial thread rolling head |
US20050210943A1 (en) * | 2004-03-23 | 2005-09-29 | C.J. Winter Machine Technologies, Inc. | Thread rolling attachment |
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ES2593380T3 (en) | 2016-12-09 |
BR112016014005A2 (en) | 2017-08-08 |
US20150165501A1 (en) | 2015-06-18 |
MX2016007750A (en) | 2017-03-27 |
CN105934294B (en) | 2018-04-03 |
WO2015091111A1 (en) | 2015-06-25 |
EP2886224B1 (en) | 2016-06-29 |
CN105934294A (en) | 2016-09-07 |
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