EP1713600A1 - Dispositif et procede de production de profils de type dente sur des pieces - Google Patents

Dispositif et procede de production de profils de type dente sur des pieces

Info

Publication number
EP1713600A1
EP1713600A1 EP04708704A EP04708704A EP1713600A1 EP 1713600 A1 EP1713600 A1 EP 1713600A1 EP 04708704 A EP04708704 A EP 04708704A EP 04708704 A EP04708704 A EP 04708704A EP 1713600 A1 EP1713600 A1 EP 1713600A1
Authority
EP
European Patent Office
Prior art keywords
workpiece
drive
forming tools
workpieces
workpiece holder
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
EP04708704A
Other languages
German (de)
English (en)
Other versions
EP1713600B1 (fr
Inventor
Daniel Deriaz
Peter Geser
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.)
Ernst Grob AG
Original Assignee
Ernst Grob AG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=34832037&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1713600(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Ernst Grob AG filed Critical Ernst Grob AG
Publication of EP1713600A1 publication Critical patent/EP1713600A1/fr
Application granted granted Critical
Publication of EP1713600B1 publication Critical patent/EP1713600B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/26—Making other particular articles wheels or the like
    • B21D53/28—Making other particular articles wheels or the like gear wheels
    • 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
    • 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
    • B21H5/025—Internally geared wheels

Definitions

  • the present invention relates to a device according to the preamble of claim 1 and a method according to the preamble of claim 7.
  • Impact rolling machines are conventionally used for the cold-forming production of cylindrical workpieces which are to be given profiles having a tooth-like geometry.
  • the movements of the tools i.e. the work movement, direction and delivery of the profiling roles respectively.
  • -rolling, and the movement of the workpiece i.e. the axial infeed to the tools and the rotation of the workpiece are coordinated with one another in a geometrically determined manner in order to achieve the desired profiling in the appropriate dimensions and accuracies.
  • the working movement and infeed movement of both the tools and the workpiece can take place continuously, which can be achieved by coupling these movements by means of mechanical or electronic gears.
  • the workpiece should ideally be discontinuous or be rotated intermittently.
  • Such a movement can be mechanically, for example, by means of a gear construction based on the Realize cross gear.
  • a gear construction based on the Realize cross gear.
  • Such a transmission allows the generation of discontinuous rotational movements starting from a continuously rotating drive machine.
  • the respective rotation steps or division steps depend on the geometry of the transmission and its translation. This means that the division steps to be achieved must be defined and the transmission must be designed and built accordingly.
  • such a gearbox and thus the production system are restricted to a specific, predetermined number of workpiece teeth.
  • the object of the present invention was to find such a device which allows simple adjustment of the dividing steps in the rotation of workpieces, in particular for workpieces for processing with impact rolling machines.
  • the device for producing cylindrical workpieces which have a defined profile has an axially displaceable and rotatable intermittently about the longitudinal axis Workpiece holder and periodically acting forming tools on the workpiece, at least one separate drive mechanically separated from the drive of the forming tools for the intermittent rotation of the workpiece holder.
  • This separate drive is connected to an electronic control, which controls the intermittent rotational movement depending on the drive of the forming tools. This allows the rotational position of the workpiece to be advantageous depending on the respective movement or Set the position of the forming tools and thus generate a precise profile geometry over the entire length of the profile of the workpiece. Both the position and the duration of the workpiece standstill can be adjusted as required during the forming tool intervention.
  • workpieces can be profiled at a much higher speed than with conventional mechanical connection of the drives. These significantly higher speeds are possible because the electronically controlled drive has a much lower moment of inertia than the mechanical gears for generating the intermittent rotational movement of the workpiece.
  • the gear-specific optimal parameters for the geometry of the gear can also be set much faster. This enables a higher production rate to be achieved with lower set-up and production costs.
  • the forming tools are preferably profiled rollers or rollers, which are driven continuously rotating on a circular path, the circular path being arranged parallel or obliquely with respect to the longitudinal axis of the workpiece, preferably adjustable.
  • the electronic regulation of the intermittent rotation of the workpiece has proven to be particularly advantageous in the case of the forming processes used on impact rolling machines.
  • the workpiece holder is preferably mounted in a displaceable headstock which is guided parallel to the workpiece axis and is connected to the drive via an at least axially elastic coupling.
  • the drive thus advantageously remains free of the forces of the forming tools acting on the workpiece and, despite the high forming forces, can be positioned or positioned precisely. guarantee intermittent rotation.
  • the drive is preferably arranged in a secondary headstock that is also guided and displaceable parallel to the workpiece axis.
  • the secondary headstock can either be arranged in the same guide as the headstock of the workpiece holder, or in a separate guide arranged parallel to it.
  • the periodic movement of the forming tools, the intermittent rotational movement of the workpiece holder and the axial infeed of the workpiece holder preferably have separate drive units which are electronically coupled to one another, preferably connected to the electronic control. So that will achieved a very large possibility of variation of the movements and also enables the production of complicated profile geometries.
  • such a device is also suitable for the generation of profiles which run obliquely with respect to the longitudinal axis. Gearing.
  • the workpieces are preferably cylindrical solid or hollow bodies.
  • the device according to the invention is advantageously suitable both for processing solid bodies and for processing hollow bodies.
  • hollow bodies both outer and inner profiles, respectively. -Toothings are generated.
  • the hollow workpieces are preferably applied to a cylindrical mandrel, which preferably has a profiled, preferably longitudinally profiled, surface.
  • the method for producing cylindrical workpieces with a defined profile, with an axially displaceable and intermittently rotatable workpiece holder for the workpieces and periodically acting forming tools on the workpiece is characterized in that the workpiece is electronically controlled about its longitudinal axis rotates with a separate drive from the forming tools. is stopped. this happens According to the invention depending on the movement of the forming tools and thus for the generation of a certain defined profiling geometry.
  • the control preferably imposes both a left and a right rotation as well as a standstill on the workpiece.
  • the desired profiling geometry can thus be generated very precisely in accordance with the geometry and movement of the forming tools.
  • the control preferably also controls the drive and the infeed movement of the forming tools in accordance with specifications, as does the axial infeed movement of the workpiece.
  • FIG. 1 shows the longitudinal section through a conventional processing machine with mechanically coupled gears
  • 2 shows the schematic longitudinal section through a device according to the invention with an electronically coupled rotary drive of the workpiece
  • 3 shows the schematic front view of a workpiece in engagement with a forming tool
  • FIG. 4 schematically shows the longitudinal section through the engagement area of the forming tool in the workpiece according to FIG. 3.
  • FIG. 1 shows the longitudinal section through a conventional impact rolling machine for machining cylindrical workpieces 1.
  • the workpiece 1 is seated on a workpiece holder 2, which can be fed along the axis z into the machining area 3.
  • the delivery takes place, for example, via its own drive 4, which drives a spindle 6 via a gear 5.
  • the forming tools 9, which are driven by the drive 8, are mechanically connected directly to the workpiece holder 2 via a Maltese cross-type gear 7. So that the intermittent rotation about the axis Z of the workpiece holder 2 with the movement of the forming tools 9 directly, according to the interpretation of the translation and the Maltese cross-like gear 7 respectively. synchronized. Because of this design, a defined profile can now be worked into the surface of the workpiece 1 by the forming tools 9. With this arrangement, only one profile with a specific profile or. Number of teeth can be created. For a different number of teeth, the translation between the drive 8 and the workpiece holder 2 must be adjusted, which can only be achieved by exchanging the corresponding gears. Gear parts can be made. Such an exchange is time-consuming and very cost-intensive.
  • FIG. 2 the longitudinal section through an inventive device is now shown schematically.
  • the structure and drive of the machining area 3 corresponds to the known structure as shown in FIG. 1.
  • the drive 8 is advantageously connected to the forming tools 9 via a mechanical gear 10.
  • the workpiece holder 2 with the workpiece 1 now has its own drive 11.
  • the workpiece 1 is in turn advantageously carried out via a separate drive 4 with gear 5 and spindle 6, the drive 11 together with the workpiece 1 and. the workpiece holder 2 is delivered.
  • both the drive 8 and the drive 11 advantageously have corresponding position sensors.
  • the big advantage of electronic synchronization is that the control is appropriate the specifications for the profile division can be set individually quickly and easily, without any intervention in the impact rolling machine.
  • it can also be used to achieve motion sequences, ie special rotation patterns of the workpiece 1, which cannot be achieved with a mechanical transmission or can only be implemented with great effort, but which are necessary, for example, for the impact rolling of helical gears.
  • the use of with a retrievable coding resp. Programming provided tools a particularly simple setting resp. Programming the control of the machine, so that practically no manual adjustment is necessary.
  • Figure 3 is still schematically the front view of a workpiece 1 with the engaged
  • the profile roller 12 is shown here in its current maximum depth of penetration into the surface of the workpiece 1.
  • the workpiece surface is profiled, in each case at a distance t, which is referred to as the profile division.
  • this area is now also shown in longitudinal section, from which it can be seen that the profile roller 12 is guided on a circular path, the circle 13 representing the path curve of the outer regions of the profile roller 12.
  • the profile roll is shown on the one hand in the exit position 12 ', where it is just leaving the surface of the workpiece 1, and in the leading position 12 '', where the forming work on the workpiece 1 is started and the professional roll enters the area of the profile which has just been formed.
  • the workpiece 1 must stand still so that the desired profile shape can be produced exactly, while the workpiece 1 must be rotated around its circular path around the profile pitch t during the subsequent rotation of the profile roller 12 in order to profile the entire circumference to reach.
  • This standstill phase can be achieved according to the invention by the separate drive and the electronic synchronization and the number of teeth to be generated, in particular in relation to the position and duration of the workpiece standstill, can be set easily.
  • Production rate can be achieved by high speeds, and the settings that are decisive for the profile geometry can be made quickly and easily via the corresponding control. These settings can advantageously be made automatically when using chip-coded tools and, for example, activate a program already contained in the control without manual intervention.
  • the embodiment according to the invention with an electronically coupled drive also allows the use of the same machine for pressure rolling with pressure rollers, it not being necessary to intermittently rotate the workpiece, but rather to rotate it at a certain, generally very high, constant speed. This does not apply to conventional
  • This press-rolling process enables a thin-walled hollow part to be preformed from a disk on a press mandrel in the same operation and then toothed on the same press mandrel.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Milling Processes (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)

Abstract

L'invention concerne un dispositif de production de pièces cylindriques (1) d'un profil défini, comprenant un porte-pièce (2) déplaçable axialement et tournant de façon intermittente autour de l'axe longitudinal (Z), ainsi que des outils de façonnage (9 ; 12) agissant périodiquement sur la pièce. Le dispositif selon l'invention présente au moins une commande distincte (11), séparée du système mécanique (8) d'entraînement des outils de façonnage, pour la rotation intermittente du porte-pièce (2). Cette commande (11) est associée à une commande électronique commandant le mouvement de rotation intermittent en fonction de l'entraînement (8) des outils de façonnage (9; 12). L'invention permet ainsi d'obtenir un mouvement intermittent, réglable à volonté, suivant la position et l'angle de la pièce (1) par rapport aux outils de façonnage (9 ; 12), ce qui contribue à l'obtention d'un usinage précis et, en particulier, rapide des pièces (1).
EP04708704.4A 2004-02-06 2004-02-06 Dispositif et procede de production de profils de type dente sur des pieces Expired - Lifetime EP1713600B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CH2004/000066 WO2005075125A1 (fr) 2004-02-06 2004-02-06 Dispositif et procede de production de profils de type dente sur des pieces

Publications (2)

Publication Number Publication Date
EP1713600A1 true EP1713600A1 (fr) 2006-10-25
EP1713600B1 EP1713600B1 (fr) 2016-10-12

Family

ID=34832037

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04708704.4A Expired - Lifetime EP1713600B1 (fr) 2004-02-06 2004-02-06 Dispositif et procede de production de profils de type dente sur des pieces

Country Status (8)

Country Link
US (1) US7562549B2 (fr)
EP (1) EP1713600B1 (fr)
JP (1) JP2007519528A (fr)
CN (1) CN100429018C (fr)
CA (1) CA2553544C (fr)
ES (1) ES2610462T3 (fr)
MX (1) MXPA06008340A (fr)
WO (1) WO2005075125A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009112074A1 (fr) * 2008-03-13 2009-09-17 Ernst Grob Ag Dispositif et procédé de production de profils dentés sur des pièces
US9890808B2 (en) 2015-04-22 2018-02-13 American Axle & Manufacturing, Inc. Telescoping propshaft
CN105081155B (zh) * 2015-09-11 2017-01-25 浙江汇丰汽配制造有限公司 一种花键搓齿定位工装
CN107262998A (zh) * 2017-06-28 2017-10-20 滁州南钢盛达实业有限公司 一种灵活的h钢焊接架
CH714772A1 (de) 2018-11-15 2019-09-13 Grob Ernst Fa Vorrichtung und Verfahren zum kaltumformenden Profilieren von Werkstücken.
CN112605218B (zh) * 2020-11-30 2022-11-15 四川航天长征装备制造有限公司 一种数控旋压机床小补偿量旋轮角度调节装置
CH718706A1 (de) 2021-06-04 2022-12-15 Grob Ernst Fa Vorrichtung und Verfahren zum kaltumformenden Profilieren von Werkstücken.
CN114523047B (zh) * 2022-02-23 2022-10-04 吉林大学 一种齿轮仿生形貌齿面辊压成形设备

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL239262A (fr) * 1958-05-16
GB1246549A (en) 1969-06-02 1971-09-15 Churchill Charles Ltd Gear rolling machines
CH579427A5 (fr) 1975-02-24 1976-09-15 Grob Ernst Fa
DE2921746A1 (de) 1978-05-30 1979-12-06 Heat Exchangers Africa Ltd Rippenrohr sowie verfahren und vorrichtung zu seiner herstellung
CH631372A5 (de) * 1978-09-08 1982-08-13 Grob Ernst Fa Kaltwalzverfahren und kaltwalzmaschine zum herstellen eines profilierten rotations-werkstuecks.
CH658006A5 (de) 1983-03-07 1986-10-15 Grob Ernst Fa Verfahren und vorrichtung zum kalibrierenden reduzieren der querschnittsflaeche eines dabei rotierenden werkstueckes.
CH668726A5 (de) * 1986-02-03 1989-01-31 Grob Ernst Fa Verfahren und vorrichtung zum herstellen von schraegen verzahnungen durch kaltumformen.
CH675840A5 (fr) * 1988-10-05 1990-11-15 Grob Ernst Fa
FR2676668B1 (fr) * 1991-05-23 1994-07-01 Escofier Tech Sa Dispositif et procede permettant le formage a froid de cannelures sur la paroi d'une piece de revolution.
DE59104722D1 (de) 1991-10-19 1995-03-30 Index Werke Kg Hahn & Tessky Drehmaschine.
CH686817A5 (de) 1992-03-04 1996-07-15 Grob Ernst Fa Vorrichtung und Verfahren zum Herstellen eines wenigstens innen gerade oder schraeg zur Werkstueckachse profilierten hohlen Werkstuecks.
CH685542A5 (de) 1992-07-16 1995-08-15 Grob Ernst Fa Verfahren zum Herstellen eines hohlen Werkstücks, das wenigstens innen gerade oder schräg zur Werkstückachse profiliert ist.
ES2105428T3 (es) 1994-06-25 1997-10-16 Grob Ernst Fa Procedimiento y dispositivo para laminar piezas huecas.
JPH08155575A (ja) * 1994-11-30 1996-06-18 Showa:Kk ラック軸の製造方法
JP3557678B2 (ja) * 1994-12-20 2004-08-25 アイシン・エィ・ダブリュ株式会社 スプライン部品の成形方法およびその成形装置
CN1063112C (zh) * 1997-07-09 2001-03-14 王来福 齿轮滚制冷锻成型机及其送料装置
JPH11245155A (ja) * 1998-02-27 1999-09-14 Nippei Toyama Corp ワイヤソー
JP2003236750A (ja) * 2002-02-15 2003-08-26 Nagase Integrex Co Ltd ドレッシング装置
WO2005075127A1 (fr) 2004-02-05 2005-08-18 Ernst Grob Ag Procédé pour profiler des pièces d'usinage cylindriques

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Title
See references of WO2005075125A1 *

Also Published As

Publication number Publication date
CA2553544A1 (fr) 2005-08-18
CN1913988A (zh) 2007-02-14
EP1713600B1 (fr) 2016-10-12
MXPA06008340A (es) 2007-04-17
ES2610462T3 (es) 2017-04-27
JP2007519528A (ja) 2007-07-19
US7562549B2 (en) 2009-07-21
US20070163320A1 (en) 2007-07-19
CA2553544C (fr) 2010-02-23
WO2005075125A1 (fr) 2005-08-18
CN100429018C (zh) 2008-10-29

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