EP3579986A1 - Verfahren und vorrichtung zur herstellung eines schrägverzahnten metallprofils und verfahren zur herstellung schrägverzahnter zahnräder - Google Patents
Verfahren und vorrichtung zur herstellung eines schrägverzahnten metallprofils und verfahren zur herstellung schrägverzahnter zahnräderInfo
- Publication number
- EP3579986A1 EP3579986A1 EP18704962.2A EP18704962A EP3579986A1 EP 3579986 A1 EP3579986 A1 EP 3579986A1 EP 18704962 A EP18704962 A EP 18704962A EP 3579986 A1 EP3579986 A1 EP 3579986A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- profile
- die
- producing
- helical
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K1/00—Making machine elements
- B21K1/28—Making machine elements wheels; discs
- B21K1/30—Making machine elements wheels; discs with gear-teeth
- B21K1/305—Making machine elements wheels; discs with gear-teeth helical
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C1/00—Manufacture of metal sheets, wire, rods, tubes or like semi-manufactured products by drawing
- B21C1/16—Metal drawing by machines or apparatus in which the drawing action is effected by means other than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, rods or tubes
- B21C1/18—Metal drawing by machines or apparatus in which the drawing action is effected by means other than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, rods or tubes from stock of limited length
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/02—Making uncoated products
- B21C23/04—Making uncoated products by direct extrusion
- B21C23/08—Making wire, rods or tubes
- B21C23/10—Making finned tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C3/00—Profiling tools for metal drawing; Combinations of dies and mandrels for metal drawing
- B21C3/02—Dies; Selection of material therefor; Cleaning thereof
Definitions
- the invention relates to a method and an apparatus for producing a round solid or hollow profile made of metal, which is formed on its outer circumference and / or inner circumference with a helical toothing.
- the invention further relates to a method for producing helical gears.
- the starting point of the invention is the production of helical gears
- Running gear Compared to a straight toothing, the production of a helical toothing is more complex and involves higher production costs.
- the production of helical gearing can be done by machining, for example by means of hobbing.
- the preparation can also be made primitive, for example.
- sintering such as. B. described in DE 691 03 109 T2.
- the production can be reshaping, such. B. in the
- the invention is intended to provide a further possibility for the production
- helical gears are created, in particular to save costs.
- the invention comprises a method and an apparatus for producing a round solid or hollow profile made of metal, which on the outer circumference and / or on the inner circumference with a helical toothing is formed, and building on this, a method for producing helical gears.
- the inventive method for producing a round solid or hollow profile which is formed on the outer circumference and / or on the inner circumference with a helical toothing, is characterized in that the profile by means of pulling and / or pressing by a with a
- Made toothing contour formed die wherein the tooth contour has a twist and run the die and / or the profile during pulling or pressing a rotational movement / performs.
- Under a profile is an elongated component with defined
- a round solid profile has a full-surface and approximately circular cross-section.
- a round hollow profile has approximately an annular cross section or hollow cross section. The solid profile is on its outer peripheral surface with a
- the hollow profile can be attached to his
- Helical teeth are formed.
- drawing is meant the production of the profile by means of pulling through a shaping die (drawing die), similar to wire drawing.
- Pressing is understood to mean the production of the profile by means of pressing through a shaping die (press die), similar to extrusion. Both are continuous forming processes of
- a cylindrical solid material in particular a Round rod, or even a pipe, in particular a thick-walled pipe can be used.
- the starting material is a metal, such as.
- Metal profile for example.
- the shaping die has at least one negative toothing contour, on which the external and / or internal toothing is formed during drawing or pulling through or pressing or pressing through.
- the toothing contour of the die is formed with a twist, d. h.,
- the teeth forming grooves have at least approximately a helical course.
- the rotational movement is free, d. H. without drive, or by means of a drive, in which case the rotational movement and the profile feed or withdrawal (that is to say the delivery or withdrawal speed of the profile produced) are coordinated or synchronized, for example by means of a CNC control.
- the drawing and / or pressing of the profile can be cold, d. H. by cold drawing or cold pressing, or warm, d. H. by hot drawing or hot pressing done.
- the starting material is warmed up and processed above room temperature.
- the profile produced can have an (axial) length between 0.5 m and 25 m and preferably between 4 m and 12 m.
- the outer diameter of the profile may be 15 mm to 200 mm, preferably 20 mm to 100 mm and particularly preferably 35 mm to 80 mm, wherein the outer profile diameter may substantially correspond to the outer diameter of the gears to be produced from the profile (see below).
- the inventive device for producing a round solid or hollow profile made of metal which is formed on the outer circumference and / or on the inner circumference with a helical toothing, comprises a drawing or
- Press die having at least one helical toothing forming (negative) tooth contour, wherein the tooth contour is formed with a twist.
- the drawing or pressing die is rotatably mounted.
- the die can be freely rotating.
- a drive for example consisting of motor and gear
- the generated Matrizenburnish Preferably, the generated
- the device according to the invention may also have a pull rod or the like which requires the pulling or pulling through
- said pull rod can be rotatably mounted to allow for pulling a rotational movement of the generated profile.
- the device according to the invention can also have a profile guide or the like, which shows the profile produced during pressing or pressing receives, this profile guide can be rotatably mounted to allow for pressing a rotational movement of the profile produced.
- the described method according to the invention and the device according to the invention make it possible to produce a helical-toothed profile, which can then be used subsequently as a semi-finished product for the production of helical gears.
- Gears includes the steps:
- the cross section of the profile at least approximately corresponds to the cross section or end section of the gears to be produced, so that the further manufacturing effort for the completion of the gears is low.
- the completion of the cross section of the profile at least approximately corresponds to the cross section or end section of the gears to be produced, so that the further manufacturing effort for the completion of the gears is low.
- gear quality and accuracy is achieved, which at least corresponds to the hobbing and in practice this even exceeds.
- the profile is made so that less than 0.1 mm must be removed during subsequent Veriereungsschleifen. Further processing steps for completing the gears may be: deburring, drilling, boring, facing, hardening (eg case hardening or nitriding), blasting, phosphating and the like.
- hardening eg case hardening or nitriding
- blasting phosphating and the like.
- Fig. 1 shows a helical gear
- Fig. 2 shows schematically an apparatus for producing a
- Fig. 3 shows the die used in the apparatus of Fig. 2 for
- the massive spur gear 200 shown in Fig. 1 is formed on its outer periphery with a helical gear 220 and has a central
- the gear 200 formed from a steel material may also be formed on its inner circumference 215 with a toothing, possibly also with a helical toothing.
- L is the
- the gear 200 has z. B. a diameter of 40 mm to 60 mm and is used in particular as a transmission part.
- the gear 200 is made of a profile 1 10 (see Fig. 2), which already at its outer periphery with a
- Helical gear 120 is provided. From this profile 1 will be 10
- Fig. 2 shows an apparatus 300 for producing a with a
- External skew teeth 120 formed full profile 1 10.
- the recorded and heated in a recipient 310 starting material 100 is continuously pulled or pushed through a die 320, wherein the strand-like round solid profile 1 10 is generated, as illustrated by the feed arrow U.
- the forming force is by means of punch 330 and / or
- the axial direction L corresponds to the
- the die 320 has a negative toothing contour 325 (see FIG. 3), with which the outer toothing 120 is formed on the profile 1 10 during pulling or pressing.
- the toothing contour 325 of the die 320 is formed with a twist, as shown in FIG.
- the die 320 and / or the pull rod 340 are rotatably mounted. Furthermore, a
- motor drive M for generating the rotational movement D.
- the diameter of the profile 1 10 essentially corresponds to the
- the continuous forming process can be designed so that in the die 320 no significant
- External teeth 120 is formed.
- the bore 210 in the toothed wheel 200 can be produced by drilling and / or boring out the sections or disks separated from the profile 1 10, which virtually function as blanks shaped near the final contour.
- a die 320 belonging to the mandrel not shown
- a hollow profile 1 10 or hollow profile can also be generated.
- Inner diameter is changed during forming by means of mandrel.
- the inner diameter of a hollow profile produced from a solid material or tube preferably corresponds substantially to the later one
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
- Gears, Cams (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102017001211.3A DE102017001211A1 (de) | 2017-02-09 | 2017-02-09 | Verfahren und Vorrichtung zur Herstellung eines schrägverzahnten Metallprofils und Verfahren zur Herstellung schrägverzahnter Zahnräder |
| PCT/EP2018/053309 WO2018146262A1 (de) | 2017-02-09 | 2018-02-09 | Verfahren und vorrichtung zur herstellung eines schrägverzahnten metallprofils und verfahren zur herstellung schrägverzahnter zahnräder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3579986A1 true EP3579986A1 (de) | 2019-12-18 |
| EP3579986B1 EP3579986B1 (de) | 2020-12-30 |
Family
ID=61198851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP18704962.2A Active EP3579986B1 (de) | 2017-02-09 | 2018-02-09 | Verfahren zur herstellung schrägverzahnter zahnräder |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3579986B1 (de) |
| DE (1) | DE102017001211A1 (de) |
| WO (1) | WO2018146262A1 (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11697149B2 (en) | 2021-04-23 | 2023-07-11 | Magna Powertrain, Inc. | Stamping press forming of outer diameter helical splines |
| CN114309099A (zh) * | 2021-12-23 | 2022-04-12 | 延锋国际座椅系统有限公司 | 一种长齿条的制造方法 |
| EP4289526A1 (de) * | 2022-06-09 | 2023-12-13 | FELSS Systems GmbH | Umformverfahren und umformmaschine zum erzeugen einer schräg-verzahnung eines zylindrischen werkstücks durch fliesspressen |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191316304A (en) * | 1913-07-15 | 1914-08-17 | Charles James Beaver | Improvements in Extruding Machines. |
| US2954121A (en) * | 1955-03-14 | 1960-09-27 | Donald O Benson | Extrusion of spirally formed article |
| DE3915969A1 (de) * | 1989-05-17 | 1990-11-22 | Doege Eckart | Verfahren und vorrichtung zum schmieden von schraegverzahnten zahnraedern |
| JPH04136107A (ja) | 1990-09-25 | 1992-05-11 | Sumitomo Electric Ind Ltd | 焼結斜歯歯車の成形装置 |
| US6293164B1 (en) * | 1999-06-30 | 2001-09-25 | Trw Inc. | Rack and pinion steering apparatus and method for manufacturing a helical pinion |
| DE102010060927A1 (de) | 2010-12-01 | 2012-06-06 | Wf-Maschinenbau Und Blechformtechnik Gmbh & Co. Kg | Verfahren und Vorrichtung zur Herstellung eines rotationssymmetrischen Getriebeteiles mit einer Innen-Schrägverzahnung |
| DE102012017525B4 (de) | 2011-09-10 | 2022-04-28 | Volkswagen Aktiengesellschaft | Verfahren zur umformenden Herstellung eines Zahnrads mit Außenverzahnung, sowie nach diesem Verfahren herstellbares Zahnrad mit Außenverzahnung |
-
2017
- 2017-02-09 DE DE102017001211.3A patent/DE102017001211A1/de not_active Withdrawn
-
2018
- 2018-02-09 EP EP18704962.2A patent/EP3579986B1/de active Active
- 2018-02-09 WO PCT/EP2018/053309 patent/WO2018146262A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018146262A1 (de) | 2018-08-16 |
| EP3579986B1 (de) | 2020-12-30 |
| DE102017001211A1 (de) | 2018-08-09 |
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