EP2190607A1 - Machine-outil pour produire des dentures sur des pièces et procédé pour produire une denture sur une pièce au moyen d'une machine-outil - Google Patents

Machine-outil pour produire des dentures sur des pièces et procédé pour produire une denture sur une pièce au moyen d'une machine-outil

Info

Publication number
EP2190607A1
EP2190607A1 EP08803126A EP08803126A EP2190607A1 EP 2190607 A1 EP2190607 A1 EP 2190607A1 EP 08803126 A EP08803126 A EP 08803126A EP 08803126 A EP08803126 A EP 08803126A EP 2190607 A1 EP2190607 A1 EP 2190607A1
Authority
EP
European Patent Office
Prior art keywords
tool
workpiece
cold rolling
machine tool
toothing
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
Application number
EP08803126A
Other languages
German (de)
English (en)
Other versions
EP2190607B1 (fr
Inventor
Moshe Israel Meidar
Wolfgang Horn
Markus Stanik
Holger Kolb
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.)
MAG IAS GmbH Eislingen
Original Assignee
MAG Powertrain GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by MAG Powertrain GmbH filed Critical MAG Powertrain GmbH
Publication of EP2190607A1 publication Critical patent/EP2190607A1/fr
Application granted granted Critical
Publication of EP2190607B1 publication Critical patent/EP2190607B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H5/00—Making gear wheels, racks, spline shafts or worms
    • B21H5/02—Making gear wheels, racks, spline shafts or worms with cylindrical outline, e.g. by means of die rolls
    • B21H5/027—Making gear wheels, racks, spline shafts or worms with cylindrical outline, e.g. by means of die rolls by rolling using reciprocating flat dies, e.g. racks
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T409/00—Gear cutting, milling, or planing
    • Y10T409/10—Gear cutting
    • Y10T409/109699—Gear cutting with work clamping

Definitions

  • the invention relates to a machine tool for producing toothings on workpieces, comprising a workpiece holding device.
  • the invention further relates to a method for producing a toothing on a workpiece mitteis a machine tool, in which a workpiece is clamped to a workpiece holder.
  • a cold rolling machine with two counter-driven, profiled rolling rods, which are each mounted on a slide on a guide and which are in engagement with a rotatably mounted between the rolling rods ⁇ tool, known. It is provided with a feed device with at least one feed drive over which the rolling rods are adjustable during the rolling operation in the direction of engagement.
  • a cold rolling machine which comprises a first movable roll bar holder and a second movable roll bar holder.
  • a first roller bar and a second roller bar of a roll bar pair in a guide direction are opposite to each other and they are movable transversely to the guide direction during a rolling operation in a position direction Ver ⁇ adjustable.
  • a workpiece holding device with a plurality of workpiece holders.
  • a tool for spin forming a workpiece with a toothing which has a profiling contour with tool teeth whose tooth height extends from a tool foot circle to a tool head circle, between which tool tooth flanks are arranged which are formed as a negative to the force-transmitting tooth flank regions of the workpiece.
  • a head-side end of the tool tooth flanks is clearly spaced from the tool head circle, on the tool tooth is formed between the head-side end of the tool tooth flanks and the tool tip circle, a head portion of the tool tooth, which tapers towards the tool tip circle, a foot-side end the tool tooth flank is clearly spaced from the tool foot circle, and between the foot-side ends of opposing tool tooth flanks of two tool teeth and the tool foot circle is disposed a groove portion which tapers towards the tool base circle.
  • the object of the invention is to provide a machine tool of the type mentioned at the outset by means of which gears of high quality can be produced in a simple manner.
  • This object is achieved in accordance with the invention by providing a cold rolling device for producing a rough toothing on at least one workpiece held by the workpiece holding device by cold rolling, and a chip machining device for machining fine machining of the raw toothing of the at least one workpiece which is provided in the workpiece device is held, is provided.
  • a "cold-welding station” and a “chip-processing station 11 are formed on a machine tool, thereby producing high-quality gears quickly and effectively
  • a toothing quality can be improved by (at least) 20 ⁇ m to 30 ⁇ m, for example, so that corresponding workpieces can be used as gear teeth gear teeth. Workpieces are used.
  • the machine tool can be configured in a simple manner, since appropriate processing techniques have similar Kine ⁇ matics as cold rolling process.
  • the workpiece holding device comprises at least one workpiece holder on which a workpiece is rotatably fixable about a workpiece axis. It can then be done in a KaStwalzvorgang and also in a chip processing operation, a rotation of the workpiece driven by tools.
  • the workpiece holding device has at least one displacement device, by means of which a workpiece is displaceable in one direction co ⁇ axially or parallel to a workpiece axis. This makes it possible to transfer a workpiece by displacement of the workpiece holding device in the chip processing device.
  • the workpiece holding device has at least one pivoting device, by means of which an angular position of a workpiece for the machining fine machining is adjustable. By pivoting the workpiece can be this with appropriate Transfer training of tools from the cold-level device into the chip-processing device.
  • Winkelsteüung is adjustable relative to a movement axis of cold rolling tools.
  • the axis of motion can, if circular tools are used, be an axis of rotation, or a linear axis, if oppositely moving flat tools are used.
  • the angular position is adjustable relative to a chip tool.
  • the defined chip machining can be performed as a fine machining.
  • At least one cold rolling tool combination with the first cold rolling tool and the second cold rolling tool is provided, wherein the cold rolling tools are synchronously driven movable.
  • the cold rolling tools are synchronously driven movable.
  • the tool holding device is in particular designed such that at least one workpiece can be positioned between the first cold rolling tool and the second cold rolling tool.
  • the first cold rolling tool and the second cold rolling tool are flat tools and in particular cold rolling rods. It is possible that the corresponding cold rolling rods have a uniform profile or a varying profile adapted to the Ron toothing to be produced.
  • the movement axis for the reciprocating movement of the first cold rolling tool and the second cold rolling tool is preferably perpendicular to a workpiece axis in order to effect a cold rolling. It is also possible for the first cold-rolling tool and the second cold-rolling tool to be round tools.
  • a rotation axis is parallel to a workpiece axis.
  • a feed device via which the first cold rolling tool and the second cold rolling tool can be delivered to the workpiece in a direction transverse to a workpiece axis. This makes it possible, for example, to use cold rolling rods with a uniform profile.
  • WO 01/94048 A1 to which reference is expressly made.
  • the at least one cutting tool may, for example, be a scraper tool or an impact tool or skiving tool or hobbing tool or gear honing tool.
  • a fine machining of a manufactured raw toothing in the same setting can then be carried out in chronological order of the cold rolling process.
  • the at least one cutting tool is a flat tool or a round tool.
  • an effective surface of the at least one chip tool in a sharp angle! oriented to a workpiece axis can be carried out in order to realize a fine machining of the raw toothing.
  • the angle division can be done by positioning and / or forming the at least one chip tool and / or positioning of the workpiece to be machined. In the latter case, for example, a pivoting of the workpiece takes place after the cold rolling process. It is particularly advantageous if a transition device is provided, through which a workpiece can be transferred from a cold-rolling tool to a cutting tool when the Ron toothing engages. It can thus be achieved that the produced raw toothing does not get out of engagement with a tool toothing. As a result, the workpiece orientation is not lost. As a result, the fine machining can be carried out quickly, since no preparation time for the new discovery of the workpiece orientation is necessary.
  • the transition device has a corresponding toothing to maintain the engagement.
  • the gateway device can be viewed as a work ⁇ convincing, soft allows the transition between cold rolling and machining.
  • the toothing of the transition device is formed so that it has such a large game and has such a small toothing ⁇ width that the workpiece from the cold rolling tool to at least one chip tool is transferable without the workpiece comes out of engagement.
  • the transition of the workpiece can be done by linear movement and / or pivoting.
  • the transition device between the cold rolling tool and the at least one cutting tool is arranged to allow an effective and thus time-saving transition.
  • At least one tool which has a cold rolling track as a profile track and a track for chip processing as a cutting track.
  • the cold rolling track is used and during chip processing, the corresponding track to
  • the transition can then be carried out in a simple manner.
  • a transition track (a transition device) is then arranged between the cold rolling track and the track track, in order to allow an effective transition of the workpiece, without having to disengage.
  • the cold rolling track and the track track are arranged one behind the other with respect to a tool movement axis.
  • tool movement during cold rolling only the cold rolling track is brought into operative engagement with the workpiece. After the completion of the cold rolling operation, such a shift occurs that only the chip track is engaged during machining.
  • the cold rolling track and the chip track are arranged on a common strip and in particular form a combination tool.
  • a certain area of this bar is brought into operative engagement with the workpiece.
  • machining another area is brought into operative engagement.
  • the bar can be easily moved by one or more carriages and in particular reciprocate.
  • the Kaitwalzspur and the track track are arranged side by side and in particular parallel with respect to a tool axis of movement.
  • a cold rolling process only the cold-water trace then acts on the workpiece.
  • the chip track For the chip track to be able to act on the workpiece, the workpiece or the tool must be displaced in the direction of separation of the cold rolling track and the chip track.
  • the cold rolling track and the chip track are arranged on different bars. It is also possible in principle that they are arranged on the same strip and form a combination tool.
  • the invention is further based on the object to provide a method of the type mentioned, with which can produce gears of high quality in an effective manner.
  • a raw toothing is produced by cold rolling by means of a first cold rolling tool and a second Kaitwalzwerkmaschinees, and the raw toothing is finished by means of at least one chip tool on the same machine tool in the same clamping.
  • the method according to the invention has the advantages already explained in connection with the machine tool according to the invention.
  • the first cold rolling tool and the second cold rolling tool are synchronously moved.
  • the synchronous movement can be an opposite linear movement or a rotational movement in the same direction.
  • the cold rolling ⁇ tools are synchronized.
  • the cold rolling tools (if it is flat tools) are formed with a varying profile, which allows the preparation of the corresponding raw teeth.
  • first cold rolling tool and the second cold rolling tool are delivered to the workpiece during cold rolling in a direction transverse to a tool movement axis and transversely to a workpiece axis.
  • cold rolling rods with the same profile can be used along the length of the cold rolling rods in order to produce the raw toothing.
  • the workpiece is rotatably clamped. It is then driven by the movement of the cold rolling tools, which are in operative engagement with the workpiece in its rotational movement.
  • the workpiece is pivoted after cold rolling with a workpiece ⁇ axis and / or moved linearly. This makes it possible to bring at least one cutting tool in engagement with the workpiece.
  • the workpiece is then moved to the at least one chip tool on a transition toothing, wherein the transition toothing causes the workpiece remains in engagement.
  • the fine machining is a butting and / or scraping and / or hobbing and / or hobbing and / or gear honing. This makes it possible to produce a toothing of high quality, which can be used for example as a gear toothing.
  • Figure 1 is a schematic illustration of an embodiment of a machine tool according to the invention.
  • Figure 2 (a) is an enlarged view of a portion of the machine tool according to Figure 1 in a cold rolling process
  • Figure 2 (b) is a Schnattansicht along the line bb of Figure 2 (a).
  • Figure 2 (c) is a front view of the region of Figure 2 (a);
  • FIG. 3 (a) shows the same view as FIG. 2 (a), but during chip machining
  • Fig. 3 (b) is a sectional view taken along the line b-b of Fig. 3 (a);
  • FIG. 4 (a) shows a partial view similar to FIG. 2 (a) in a further exemplary embodiment of a machine tool according to the invention in a quill rolling process;
  • Figure 4 (b) is a sectional view taken along the line b-b of Figure 4 (a);
  • Figure 4 (c) is a front view of the region of Figure 4 (a);
  • Fig. 5 (a) is the same view as in Fig. 4 (a) at chip processing;
  • Fig. 5 (b) is a sectional view taken along the line b ⁇ b of Fig. 5 (a);
  • Figure 6 (a) is an enlarged view of a portion of another embodiment of a machine tool according to the invention in a Kaitwalzvorgang;
  • Fig. 6 (b) is a sectional view taken along the line b-b of Fig. 6 (a);
  • Figure 6 (c) is a front elevational view of the region of Figure 6 (a);
  • Figure 7 (a) is the same view as in Figure 6 (a) in a chip processing operation
  • FIG. 7 (b) is a sectional view taken along the line bb of Fig. 7 (a); and FIG. 8 shows a partial representation of a further exemplary embodiment of a machine tool according to the invention.
  • FIG. 1 An exemplary embodiment of a machine tool according to the invention, which is shown in FIG. 1 and designated there as a whole by 10, comprises a machine base frame 12, via which the machine tool 10 is set up on a base. With the machine base frame 12, a C-shaped Gesteli 14 is connected.
  • This frame 14 has a first holding region 16 and an opposite second holding region 18.
  • the two HaSte Schemee 16 and 18 are connected via a connecting portion 20 with each other.
  • the first holding region 16 protrudes beyond the connection region 20 in a transverse direction z.
  • the second holding portion 18 protrudes beyond the connecting portion 20 in the transverse direction z.
  • the first holding area 16 and the second holding area 18 thereby each form shrouds, on each of which a first tool holder 22 (on the first holding area 16) and a second tool holder 24 (on the second holding area 18) are movably held.
  • the two tool holders 22, 24 are opposite each other. One or more tools can be fixed to these.
  • a workpiece holding device 25 is arranged with one or a plurality of workpiece holders 27, which are fixed on the connecting region 20 at least on one side (FIG. 2).
  • a workpiece 29 is insertable into a workpiece holder 27, wherein it is held by the workpiece holder rotatably about a workpiece axis 31 on the machine tool 10, so that a cold rolling process for producing a Ron toothing on the workpiece 29 and a fine machining of the Ron Gearing is feasible.
  • the tool holders 22 and 24 are each movable in a longitudinal direction x and in the transverse direction y relative to the longitudinal direction x.
  • first holding region 16 and the second holding region 18 each have an inclined guideway 34 or 36, on which a first wedge slide 38 or a second wedge slide 40 is guided.
  • the guideway 34 is inclined with respect to the direction x by an acute angle.
  • the guide track 36 of the second holding area 18 is parallel to the guide track 34 of the first holding area 16.
  • the distance of the tool holder 22, 24 set in the direction y.
  • recesses 42, 44 are formed in the holding regions 16 and 18, in which guide strips 46, 48 of the respective wedge slides 38, 40 are immersed.
  • tools 26a, 26b and 28a, 28b can be aligned with a workpiece in the direction y.
  • the tools 26a, 26b and 28a, 28b can be adjusted radially with respect to the workpiece during a rolling operation and during a machining fine machining.
  • the keying slides 38, 40 have guideways 54, 56 facing one another. On each of these sit the tool slides 50, 52, wherein their movement is driven in the x direction.
  • the corresponding drives are not shown in the drawing. Reference is made in this connection to WO 01/94048 A1 or US 2004/0007034 A1.
  • the tool slides 50 and 52 spaced apart in the y direction are driven in opposite directions in synchronism; during the movement of istschtittens 50 in the + x-direction, the more complete at ⁇ tool carriage 52 moves in the -x direction and vice versa.
  • the tools 26a, 26b, 28a, 28b can be moved in the x-direction and y-axis.
  • the movement in the y-direction can be carried out in particular during a machining process.
  • the tool carriages 50 and 52 are driven driven on their respective guideways 54, 56.
  • the wedge sled 38, 40 are driven in their respective guide tracks 34, 36 are moved.
  • a tool carriage 50, 52 may hold a tool or a plurality of tools. If a plurality of tools are held, then different profiling operations can be sequentially performed on a workpiece. In particular, different types of profiles can be incorporated in the tool correspond ⁇ training or a Profii can be coarsely machined (by cold rolling) and fine machining (by machining) without having to perform an external tool change and a workpiece clamping.
  • the tool carriage 52 (and corresponding to the tool sheds 50) has a fixing device for one or more tools.
  • a fixing device for one or more tools about the fixing device or the tools in an x-position, y-position and z-position on the tool carriage 52 are firmly positioned.
  • several tools can be positioned one behind the other in the x-direction.
  • a transverse offset in the z-direction is possible or a height ⁇ offset in the y-direction is possible. This results in extensive possibilities for the production of profiles on a workpiece.
  • the machine tool 10 has a control device 60 (shown schematically in FIG. 1).
  • This control device 60 is arranged, for example, in a control box.
  • the machine tool 10 can be controlled via the control device 60.
  • the movement of the tool holders 22 and 24 in the direction x and the delivery in the direction y can be controlled.
  • the position of the tool slides 50 and 52 can be controlled with respect to the selection of the tools (26a and 28a or 26b and / or 28b).
  • a workpiece holder 27 comprises in each case a first abutment element 62 and a second abutment element 64 with respective abutment tips 66, 68, between which a workpiece 29 can be clamped.
  • a clamped workpiece 29 is rotatable about the axis 70 of the corresponding workpiece holder 27.
  • the axis 27 of the corresponding workpiece holder 64 lies between the tips 66 and 68.
  • the axis of rotation 31 of a workpiece 29, which is clamped in the corresponding workpiece holder 27, is a workpiece axis and coincides with this axis 70.
  • a workpiece holder 27 has, for example, a fixed headstock part on which the first abutment element 62 is arranged or arranged. is forming. Furthermore, a workpiece holder 27 has a tailstock part, on which the second abutment element 64 is formed or arranged.
  • the riding stable party! is a direction which is aligned in particular parallel to the axis 70, movable.
  • About the tailstock part can be a workpiece 29 in the associated workpiece holder 27 brace.
  • the workpiece holder 27 can be displaceable and / or pivotable as a whole, as will be explained below.
  • the workpiece holding device 25 comprises a pivoting device 72, by means of which the workpiece holder 27 can be pivoted about a pivot axis 74 and thereby an angular position of the axis 70 and thus of the workpiece axis relative to the x-direction can be set.
  • the machine tool 10 comprises a cold rolling device 76, by means of which a rough toothing can be produced by cold rolling on the workpiece 29. Furthermore, it comprises a chip processing device 78, via which, after production of the raw toothing, a fine machining of the raw toothing can be carried out by a metal-cutting process.
  • a combination tool 80 which comprises the tools 26a and 26b is arranged on the first tool carriage 50.
  • a tool 82 is arranged, which comprises the tools 28a and 28b.
  • the tool 26a of the combination tool 80 is a cold-rolling tool, in particular in the form of a cold-rolling jaw with a profile which is predetermined by the rough toothing to be produced.
  • the tool 26b of the combination tool 80 is a cutting tool such as a punch tool or a scraping tool.
  • the tool 26a forms a first cold rolling tool
  • the tools 26a and 26b are disposed on the same ledge of the combination tool 80, being arranged one behind the other in the x-direction while being spaced therefrom.
  • a transition device 84 is arranged between the cold rolling tool 26a and the chip tool 26b. This is designed as a transition toothing, which allows a transition of the workpiece 29 from the first cold rolling tool 26a on the cutting tool 26b without the workpiece 29 is disengaged, that is, the raw toothing on the workpiece 29, which via the cold rolling tools 26a and 28a is maintained, remains in engagement with the transition teeth 84 in the transfer to the Ver ⁇ toothing of the cutting tool 26b.
  • the toothing of the transition device 84 based on the (raw) toothing of the workpiece 29, which is produced by cold rolling, such a large game and such a small tooth width, that the transition is made possible.
  • the tool 28a is a second cold rolling tool.
  • the tools 26a and 28a form a Kaltwalzwerkmaschinekomb ⁇ nation, between which the workpiece 29 is positioned.
  • the corresponding workpiece blank is clamped to the workpiece holder 27.
  • the axis of rotation 31 and the workpiece axis 70 are aligned transversely and in particular perpendicular to the x direction in z-direction.
  • the cold rolling tools 26a and 28a move in a synchronous manner in the x direction during a cold rolling operation, being delivered to the workpiece 29 in the y direction.
  • the cutting tool 26b or 28b does not come into contact with the workpiece 29 during the cold rolling process,
  • the Kaitwalzvorgang is shown schematically in Figures 2 (a), (b) and (c).
  • the cold rolling tools 26a and 28a are moved synchronously in opposite directions via their respective workpiece slides 50 and 52.
  • the cold rolling tools 26a and 28a have a profiling.
  • the tools 26 a and 28 a simultaneously impinge on the workpiece 29.
  • First by frictional engagement and then by positive locking the workpiece is rotated about the axis 31 in a rotation. Material is displaced in free spaces of the profiled tools 26a, 28a.
  • Cold rolling is a tensionless forming technique. Gears can be produced much faster with cold rolling than by machining.
  • the tools 26a and 28a can be formed with a constant tread depth.
  • the workpiece 29, which now has a rough teeth 86 into the tool 26b (chuck) is as shown ⁇ schematically in Figure 3 ge transferred. This is done by a shift of the combination tool 80. Further, the combination ⁇ tool 82 is shifted so that it no longer is in engagement with the workpiece 29th During the displacement of the workpiece 29 in the transition ⁇ area 84, the workpiece 29 is brought via the pivoting device 72 in a pivotal position, that is, the axis 31 and thus the workpiece piece axis 70 is in a finite angle (angle not equal to 0 ° and unequal 90 °) to the x-direction. In particular, this finite angle is an acute angle.
  • the cutting tool 26b For fine machining of the raw toothing 86, the cutting tool 26b is moved on the workpiece 29, wherein a delivery in the y-direction takes place.
  • the cutting tool 26b performs a fine machining on the Ron toothing. There is a rolling and a transverse movement. The cutting edges of the tool 26b are inclined to the workpiece 29.
  • Fine machining improves the quality of the teeth. For example, it has been shown that the toothing quality for gear teeth during cold rolling is too low by approximately 20 ⁇ m to 30 ⁇ m. By machining with the tool 26b a gear quality is achieved, which is sufficient for example for gear teeth.
  • the cutting tool 26b is formed, for example, as a striking tool or scraping tool.
  • the cold rolling process and the machining process basically have a similar kinematics.
  • the cold rolling can be performed on the same machine tool 10 via the cold rolling device 76 for producing the rough gear teeth 86 and the subsequent cutting fine machining by the chip processing device 78 without having to change the chucking (clamping) of the workpiece 29.
  • the carriages 50 and 52 are synchronously reciprocated during cold rolling. During chip machining, the carriage 50, which holds the chip tool 26b, is moved back and forth. Both times there is a y-delivery to the workpiece.
  • transition device 84 Via the transition device 84, it is possible to make a transition from the cold-rolling tools 26a, 28a to the cutting tool 26b, wherein the pivoting is made possible; the manufactured raw toothing 86 is not disengaged from the combination tool 80, so that the workpiece orientation is not lost.
  • the tool carriages 50 and 52 are only moved in such a way that the cold rolling tools 26a and 28a are in constant operative connection with the workpiece 29.
  • the combination tool 80 (after moving away from the combination tool 82) is only moved so far that only the cutting tool 26b acts on the workpiece 29.
  • both the combination tools 80 and 82 has a cutting tool.
  • a uniform wear can be achieved if both the combination tools 80 and 82 each have a chip tool and for uniform tool wear these are used alternately (for different workpieces).
  • the combination tool has traces lying one behind the other in the x-direction, namely the profile track of the cold-rolling tool 26a and the cutting track of the cutting tool 26b, which are connected by the transition device 84.
  • a first cold rolling tool 88 is held on the first tool carriage 50. Furthermore, a cutting tool 90 is held parallel to the first cold-rolling tool 88 on the first tool carriage 50.
  • the first cold rolling tool 88 has a profile track which lies parallel to a cutting track of the cutting tool 90.
  • the first cold- rolling tool 88 and the clamping tool 90 are ge at separate strips forms ⁇ . It is also possible in principle that they are formed on the same strip and in particular are arranged on a combination tool.
  • a second cold rolling tool 92 is held on the second tool carriage 52.
  • a workpiece holding device 94 on which the workpiece holder 27 is arranged (which basically has the same design as described above), has a displacement device 96, through which a
  • Workpiece coaxial or parallel to the axis 70 of the workpiece holder 27 is displaceable and in particular in the z-direction is displaceable.
  • a pivoting device corresponding to the pivoting device 72 is provided for adjusting the pivoting position of the workpiece axis 70 with respect to the x-direction.
  • a transition device can be provided between the first cold-rolling tool 88 and the cutting tool 90 in order to permit transfer without disengaging the teeth.
  • the gear production is carried out as described above, that is, it is first carried out on the cold rolling tools 88 and 92, a cold rolling process for producing the Ron toothing 86. Then, the rough gear portion is brought into operative engagement with the cutting tool 90, which performs the fine machining of the Ron gear teeth.
  • the cutting tool 90 in turn is, for example, an impact tool or a scraping tool or hobbing tool or skiving tool or gear honing tool.
  • the tools are flat tools (flat-jaw tools) and, in particular, cold-rolling bars and clamping bars (such as scraper bars),
  • a cold rolling rod is used for the method according to the invention for cold rolling a) s first cold rolling tool 98 and also a cold rolling rod as the second cold rolling tool 100.
  • a chip tool 102 a round tool is used, which is rotatable about an axis 104 and in particular rotatable.
  • the axis 104 is arranged in particular at an angle (and in particular acute angle) to the axis 70 of the workpiece holder 27.
  • a cold rolling operation is carried out by means of the cold rolling rods 98 and 100 (FIG. 6).
  • the produced raw toothing is brought into operative engagement with the cutting tool 104 by displacement in the z-direction. This then performs a machining fine machining of the raw toothing, for example by pushing or scraping.
  • a round tool (cold rolling roller) is used as the first cold rolling tool 106 and a round tool (cold rolling roller) is used as the second cold rolling tool 108, which are rotatable about axes of rotation 107 and 109, respectively.
  • the Roh-Veriereungs- area 86 is brought into operative engagement with a cutting tool 110 as described above.
  • the cutting tool 110 may be a flat tool or a round tool.
  • a "conventional" Kaitwalzrea is initially driven with opposite synchronously moved in opposite directions (in flat tools) or in the same direction (in round tools)
  • the cold rolling tools can be linear oppositely moving flat tools or cylindrical tools rotated in the same direction.
  • the cold rolling process is a non-cutting forming process.
  • a transition to a cutting tool such as a scraping tool or impact tool is performed in the same machine tool.
  • the workpiece is linearly moved and / or pivoted by a transition device with a transition toothing.
  • the cold rolling tools are brought out of operative engagement with the workpiece. After reaching the cutting tool, chip machining takes place, which improves the quality of the teeth.
  • the chip processing is carried out by linear movement (in particular reciprocating motion) of the cutting tool or by a rotational movement in each case with y-delivery. For example, by bumping and / or scraping and / or hobbing and / or skiving and / or gear honing to obtain a quality of the teeth, which is suitable for example for gear teeth.
  • flat tools or round tools can be used for cold rolling.
  • a suitable flat tool or round tool can be used for the fine machining.
  • Cold rolling and chip processing are performed one after the other.
  • a change in the angular position is necessary. This can be done by changing the Winkelsteliung of the workpiece and / or by adjusting the angular position of the chip tool.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gear Processing (AREA)
  • Turning (AREA)
  • Forging (AREA)

Abstract

L'invention concerne une machine-outil servant à réaliser des dentures sur des pièces (29). La machine-outil selon l'invention comprend un dispositif porte-pièce (25), un dispositif de laminage à froid servant à produire par laminage à froid une denture brute sur au moins une pièce (29) maintenue par le dispositif porte-pièce (25), ainsi qu'un dispositif d'usinage par enlèvement de copeaux (78) pour le finissage par enlèvement de copeaux de la denture brute de la pièce (29) maintenue sur le dispositif porte-pièce (25).
EP08803126A 2007-09-07 2008-08-21 Machine-outil pour produire des dentures sur des pièces et procédé pour produire une denture sur une pièce au moyen d'une machine-outil Not-in-force EP2190607B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007044283A DE102007044283A1 (de) 2007-09-07 2007-09-07 Werkzeugmaschine zur Herstellung von Verzahnungen an Werkstücken und Verfahren zur Herstellung einer Verzahnung an einem Werkstück mittels einer Werkzeugmaschine
PCT/EP2008/060952 WO2009033927A1 (fr) 2007-09-07 2008-08-21 Machine-outil pour produire des dentures sur des pièces et procédé pour produire une denture sur une pièce au moyen d'une machine-outil

Publications (2)

Publication Number Publication Date
EP2190607A1 true EP2190607A1 (fr) 2010-06-02
EP2190607B1 EP2190607B1 (fr) 2011-05-04

Family

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EP08803126A Not-in-force EP2190607B1 (fr) 2007-09-07 2008-08-21 Machine-outil pour produire des dentures sur des pièces et procédé pour produire une denture sur une pièce au moyen d'une machine-outil

Country Status (6)

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US (1) US20100247260A1 (fr)
EP (1) EP2190607B1 (fr)
AT (1) ATE507911T1 (fr)
DE (2) DE102007044283A1 (fr)
ES (1) ES2365295T3 (fr)
WO (1) WO2009033927A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010005006A1 (de) 2010-01-19 2011-07-21 MAG IAS GmbH, 73033 Werkzeugmaschine
CN111590000B (zh) * 2020-05-29 2024-08-06 华南理工大学 一种可变角度搓齿机

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FR2299935A1 (fr) 1975-02-07 1976-09-03 Renault Ind Equip Tech Nouveau procede de rasage et de roulage differentiel de dentures et machine en faisant applicatio
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Also Published As

Publication number Publication date
WO2009033927A9 (fr) 2010-06-24
DE502008003446D1 (de) 2011-06-16
US20100247260A1 (en) 2010-09-30
EP2190607B1 (fr) 2011-05-04
DE102007044283A1 (de) 2009-03-12
WO2009033927A1 (fr) 2009-03-19
ATE507911T1 (de) 2011-05-15
ES2365295T3 (es) 2011-09-28

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