EP1658154A1 - Dispositif de mortaisage servant a realiser des mortaises ou analogue, qui est menage sur des machines-outils pourvues d'un systeme d'entrainement d'outil rotatif, en particulier sur des tours a commande numerique par ordinateur - Google Patents

Dispositif de mortaisage servant a realiser des mortaises ou analogue, qui est menage sur des machines-outils pourvues d'un systeme d'entrainement d'outil rotatif, en particulier sur des tours a commande numerique par ordinateur

Info

Publication number
EP1658154A1
EP1658154A1 EP04764389A EP04764389A EP1658154A1 EP 1658154 A1 EP1658154 A1 EP 1658154A1 EP 04764389 A EP04764389 A EP 04764389A EP 04764389 A EP04764389 A EP 04764389A EP 1658154 A1 EP1658154 A1 EP 1658154A1
Authority
EP
European Patent Office
Prior art keywords
slide
rotor
shock device
tool
groove
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.)
Withdrawn
Application number
EP04764389A
Other languages
German (de)
English (en)
Inventor
Bianca Viola Schwarzer
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.)
Schwarzer Spannzeug Vertriebs GmbH
Original Assignee
Schwarzer Spannzeug Vertriebs 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
Priority claimed from DE2003139344 external-priority patent/DE10339344B3/de
Priority claimed from DE202004010936U external-priority patent/DE202004010936U1/de
Application filed by Schwarzer Spannzeug Vertriebs GmbH filed Critical Schwarzer Spannzeug Vertriebs GmbH
Publication of EP1658154A1 publication Critical patent/EP1658154A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D11/00—Planing or slotting devices able to be attached to a machine tool, whether or not replacing an operative portion of the machine tool
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
    • B23Q5/22—Feeding members carrying tools or work
    • B23Q5/34—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission
    • B23Q5/341—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission cam-operated

Definitions

  • the invention relates to a pushing device for pushing grooves or the like on and / or for machine tools with a tool rotary drive, in particular on and / or for CNC lathes, at least one rotatably mounted rotor, at least one reciprocating slide and a with the slide interacting impact tool are provided.
  • Grooving or the like on turned parts is carried out, for example, by means of separate shaping machines. Machining with a separate shaping machine requires extensive reclamping work and is therefore ruled out for mass-turned parts with short machining times.
  • the invention is therefore based on the object of designing and developing a pushing device in such a way that corresponding grooves or the like can be implemented quickly and easily on a workpiece, in particular a clamped workpiece.
  • the slide can be moved between two end positions, namely a working stroke position and a return stroke position, and that the rotor and / or the slide are designed and / or arranged in such a way that the slide together with the impact tool on its return stroke from the previous working stroke position into a return stroke position lifted from the working stroke position. Due to the impact devices now formed, corresponding grooves on a workpiece can be quickly and automatically, in particular in the corresponding
  • the grooves or the like can be made or implemented both on the outer circumference of the workpiece and in an inner recess of the workpiece. It is also conceivable to distribute the grooves and / or recesses over the circumference or to assemble them accordingly.
  • the pushing device according to the invention enables fast and extremely dimensionally accurate pushing of grooves or the like on the workpiece clamped in the original position.
  • the workpiece spindle can be fixed in any selectable rotational position, with the result that the shaping tool can be moved parallel to the axis of rotation in the desired rotational orientation relative to the workpiece.
  • the pushing tool is preferably fed in x Direction.
  • FIG. 1 is a schematic representation of the structure of the essential parts of a CNC lathe and the adjacent turret with a schematically indicated impact device
  • FIG. 2 shows a schematic illustration of the pushing device in two different extension states of the pushing tool together with a movement diagram
  • FIG. 3 shows an end view of the impact device in the direction of arrow III according to FIG. 4,
  • Fig. 4 shows a longitudinal section through the push device with advanced
  • FIG. 5 shows a section along the plane V - V according to FIG. 4
  • Fig. 6 shows a schematic representation of a development of the rotor
  • FIG. 7 shows a longitudinal section through a further embodiment of the impact device in a schematic illustration
  • FIG. 8 is a schematic illustration of the impact device shown in FIG. 7, partially sectioned from the side,
  • FIG. 9 shows a longitudinal section through the lower housing part of the impact device shown in FIG. 7 in a schematic representation from above
  • Fig. 12a, 12b essential components of the lower housing part, namely the slide with swivel element with fully advanced
  • Push tool in a schematic representation from above or from the Page
  • Fig. 16 essential components of the lower housing part, namely the
  • FIGS. 1 to 5 The following may first be carried out with regard to FIGS. 1 to 5:
  • FIG. 1 shows a schematic representation of the arrangement of an impact device according to the invention on a lathe, in particular on a CNC
  • the workpiece spindle 20 of the lathe is through that Symbolizes chuck.
  • a rotated workpiece 21 is clamped in the workpiece spindle 20 or the chuck.
  • the axis of rotation is denoted by “27”.
  • a tool turret 22 is arranged adjacent to the workpiece spindle 20 and can be advanced transversely to the axis of rotation 27 in the direction x 1.
  • a shaping tool 8 which will be described in more detail later, can be moved parallel to the axis of rotation 27 between a retracted position (cf. FIGS. 1 and 2 top right) and an advanced position (cf. FIG. 2 bottom right).
  • a groove 21a is machined in the bore of the workpiece 21 with the shaping tool 8.
  • the pushing device according to the invention is suitable for pushing grooves or the like on and / or for machine tools with a tool turning drive, namely in particular for CNC lathes.
  • the impact device according to the invention in this case has a rotatably mounted rotor 2, a reciprocally movable slide 7 and an impact tool 8 cooperating with the slide 7.
  • the slide 7 is correspondingly mounted in the housing 1 of the impact device.
  • FIG. 1 shows that the impact device, namely the rotor shaft of the impact device, which is not shown in FIG. 1, can be driven via the tool turret 22.
  • the impact device according to the invention can therefore be easily handled in an advantageous manner, vzw. in connection with a CNC lathe.
  • the processing sequence is shown in FIG. 2 in conjunction with FIG. 1:
  • the working stroke of the shaping tool 8 is designated by “23” in FIG. 2.
  • the cutting edge 8a of the shaping tool 8 decreases a depth of cut on the way from the backward position to the advanced position according to arrow 25.
  • Lifting off the machined groove base can be, for example, 0.15 to 0.2 mm. This is followed by a return stroke 24 which runs counter to the working stroke 23.
  • the tool turret 22 is advanced with the attached and driven pusher continuously in the direction of arrow x.
  • the delivery can e.g. 0.1 mm per revolution of the impact device, which is described in more detail below.
  • the impact device has a cuboid housing 1 with an upper housing part 1 a and a lower housing part 1 b.
  • a rotor 2 designed as a roller is rotatably mounted in the housing 1 about a rotor axis 2a.
  • the rotor 2 has a circumferential cam groove 2b.
  • the rotor 2 is non-rotatably connected to a rotor shaft 5 via a groove 5a and a spring 6.
  • the rotor shaft 5 is rotatably mounted adjacent to the end faces of the rotor 2 in rotary bearings 3 and 4 in the form of tapered roller bearings in the housing 1.
  • the drive region of the rotor shaft 5, which is designed as a splined shaft, is designated by “5b”.
  • the drive region 5b is rotated by the rotary drive of the tool turret head 22.
  • a cuboidal slide 7 in a guide 12 of the housing 1 parallel to the rotor axis 2a and thus parallel to the axis of rotation 27 slidably mounted between two end positions.
  • the backward end position is determined by the upper end of the curve groove 2b according to FIG. 4
  • the front position is determined by the lower, front area of the curve groove 2b shown in FIG. 4.
  • the total stroke of the slide 7 results from the axial distance between the upper region of the curved groove 2b and the lower region of the curved groove 2b.
  • “7a” denotes a receptacle for the shaping tool 8 that has a cutting edge 8a.
  • a connecting pin 9 is fixedly connected to the slide 7 and carries a roller 10 which is rotatably mounted via a needle bearing 11 and which runs in the curved groove 2b.
  • a sliding plate 15 is provided in the parallelepiped-shaped guide 12, the upper side of which rests on the underside of the slide.
  • This slide plate 15 is with the help of several vzw. springs 16 designed as disc springs are pressed against the underside of the slide 7.
  • the top of the slide 7 is supported on the outer circumference of the rotor 2.
  • the roller-shaped rotor 2 is not circular cylindrical. It has a diameter reduction over a part of its circumference
  • This diameter reduction 2c which for the sake of clarity is shown in an exaggerated manner in FIGS. 3 and 5 is.
  • This diameter reduction 2c with a diameter r extends vzw. about 120 ° of the circumference and amounts to only vzw. 0.3 mm.
  • This reduction in diameter by approx. 0.3 mm allows the slide 7 to be lifted from the last machined groove surface together with the impact tool 8 under the action of the spring 16 in the direction of the arrow 25.
  • FIG. 2 clearly shows the mode of operation of the pushing device, namely that the slide 7 can be moved between two end positions, namely a working stroke position and a return stroke position, that is to say between two different “operating levels”.
  • the “working stroke level” is shown slightly below the “return stroke level”.
  • the slide 7, in particular by means of the spring 16 can be shifted from the working stroke level from the working stroke position to the return stroke level, ie to the return stroke position.
  • the corresponding one essentially The vertical distance between these planes is shown schematically in FIG. 5 by the representation of the corresponding distance a, the slide 7 being in the position shown in FIG. 5 in the working stroke position, that is to say in the “working stroke plane”.
  • the “amounts” (if the mathematical sign is neglected) of the respective slopes in the first and second sections I and II, namely in the linear partial areas that can be seen here, are different. It can be clearly seen that when comparing of the amounts, the slope in the second area II of the cam groove 2b is significantly greater than in the first area I. This ensures that the slide 7 has a working stroke with the most optimal possible
  • pneumatic and / or hydraulic means can be provided in order to implement the corresponding displacement of the slide 7.
  • a control unit is then preferably provided for the hydraulic or pneumatic control, which controls the corresponding movement, ie the displacement of the slide 7, preferably as a function of the position of the rotor 2 and thus as a function of the cam groove 2b.
  • the pushing tool 8 can be effectively connected to the slide 7, as shown in FIGS. 1 to 5.
  • the pushing tool 8 is designed as an integral part of the front end of the slide 7.
  • the rotor 2 can be connected here to a drive shaft, preferably a rotor shaft 5. It is also conceivable here that the rotor 2 and the rotor shaft 5 are formed as integral components of a rotor unit.
  • the rotor does not necessarily have to have a curved groove.
  • elevations running differently can be provided along the circumference of the rotor, with these elevations providing a coupling element that is effectively connected to the slide, and / or the connecting pin can then be guided in this way. so that a reciprocating movement of the slide is realized with a corresponding rotation of the rotor.
  • the rotor can then have an edge region which is limited in width and extends beyond these elevations, which in turn can have an region with a partially reduced radius, in order to ensure a corresponding contact of the rotor with the slide.
  • the curved groove of the rotor could be designed in particular re the bottom region of the curve groove be designed so that the head of the coupling element, vzw. of the connecting pin also has direct contact with the bottom area of the cam groove, so that - in the end - then vzw via the coupling element.
  • a pressing force is essentially achieved perpendicularly to its axial displacement direction via connecting pins.
  • a corresponding course of the bottom area of the cam groove and a corresponding mounting of the coupling element or connecting pin within the cam groove could result in a corresponding pressing force on the slide 7, so that the contact force is applied to the slide via the coupling element or via the connecting pin ,
  • FIGS. 7 to 16 has been slightly varied compared to the embodiments shown in FIGS. 4 and 5, vzw. have also been further developed. The essential components have been retained.
  • the essential difference of the further embodiment shown here is that here the slide 7 vzw. is at least partially housing-like and that a pivot element 28 is additionally arranged functionally between the pushing tool 8 and the slide 7.
  • FIG. 7 now clearly shows that the pivot element 28 is pivotably articulated within the slide 7 at its left rear end.
  • the pivoting movement of the pivoting element 28 is now vzw. depending on the position of the slide 7 positively controlled.
  • a control groove 29 and a control pin 30 engaging with it are provided for controlling the pivoting movement of the pivoting element 28.
  • the control pin 30 is - as can be seen from Fig. 9 - vzw. arranged on the swivel element 28, the control groove 29 being provided or formed in the region of the lower housing part 1b.
  • the slide 7 now has a recess 7b, so that the control pin 30 can extend from the pivot element 28 through the recess 7b to the control groove 29.
  • Vzw. the front end of the control pin 30 has a guide roller 31 which engages with the control groove 29.
  • the groove 21a produced on the workpiece 21 is designed or manufactured in an arc shape, namely with the aid of the plate 32 or control groove 29 as shown in FIGS. 13a to c.
  • the groove 21a produced on the workpiece 21 is designed or manufactured in an arc shape, namely with the aid of the plate 32 or control groove 29 as shown in FIGS. 13a to c.
  • other alternatives are also conceivable, which will be explained in the following.
  • the pushing device shown in FIGS. 7 to 12 has essentially the same components as the pushing device shown in FIGS. 3 to 5, so that the same components have been designated with the same reference numbers.
  • the mode of operation of this embodiment of the pushing device is also essentially similar to that shown in FIGS. 1 to 6
  • the slider 7 is displaced together with the push tool 8 and the swivel element 28 during its return stroke from the previous working stroke position 23 into a return stroke position 24 which is lifted from the working stroke position 23.
  • the partially housing-like slide 7 is correspondingly moved between two end positions, namely a working stroke position and a return stroke position, the slide 7 together with the pushing tool 8 during its return stroke from the previous one Working stroke position can be shifted to a return stroke position that is raised from the working stroke position.
  • the corresponding springs 16 act against corresponding partial surfaces of the housing-like slide 7 the corresponding slide plate 15.
  • the pivot element 28 is now provided in the embodiment shown here in FIGS. 7 to 12 and is correspondingly mounted in the housing-like slide 7. This has the advantage that specific groove shapes of grooves 21a in the workpiece 21 can be produced via a positively guided control of the pivoting movement of the pivoting element 28, as already described or implemented above.
  • FIGS. 10 to 12 shows the pusher tool 8 or the swivel element 28 in the not yet advanced state
  • FIG. 11b shows the swivel element 28 or the pusher tool 8 in the partially advanced state.
  • the pivoting element 28 has been pivoted slightly compared to FIG. 10b, namely due to the corresponding positive guidance via the control groove 29 and the control pin 30, so that an arcuate groove 21a is formed in the workpiece 21 here in Fig. 12b has been completely manufactured.
  • the course of the guide roller 31 or its position within the control groove 29 is also clearly shown in FIGS. 9b, 10b, 11b and 12b and its “effect” on the guidance of the shaping tool 8 for producing the groove 21a in the workpiece 21, which is shown to the right of the pushing tool 8.
  • 13d to 13f show another embodiment of a plate 32, namely in particular with a further embodiment of a control groove 29, which in turn is designed such that the pushing tool 8 makes a corresponding combined movement, which in turn is good in FIG. 14 to 16 can be seen.
  • Control groove 29 is not arched here, but essentially has two inclined regions and a rectilinear region. It can be clearly seen that a groove 21a is produced here, which is essentially flat in the middle, but has oblique side faces. On the basis of this example it can be seen that with appropriately designed control grooves 29, which preferably correspond in the plate 32 are provided, wherein the respective plates are then interchangeable in the lower housing part 1b, different specific courses of grooves 21a can be produced.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Milling Processes (AREA)

Abstract

L'invention concerne un dispositif de mortaisage servant à réaliser des mortaises ou analogue, qui est ménagé sur et/ou conçu pour des machines-outils pourvues d'un système d'entraînement d'outil rotatif, en particulier, qui est ménagé sur et/ou conçu pour des tours à commande numérique par ordinateur. Selon l'invention, au moins un rotor (2) monté de manière rotative, au moins un coulisseau (7) effectuant un mouvement de va-et-vient, ainsi qu'un outil de mortaisage (8) qui coopère avec ledit coulisseau (7) sont prévus. L'objectif de cette invention est de réaliser facilement, de préférence des mortaises, ou analogue. A cet effet, le coulisseau (7) peut être déplacé entre deux positions terminales, notamment une position de course de travail (23) et une position de course de retour (24). En outre, le rotor (2) et/ou le coulisseau (7) est/sont configuré(s) et/ou disposé(s) de façon que le coulisseau (7) puisse être déplacé avec l'outil de mortaisage (8) lors de sa course de retour pour sortir de la position de course de travail (23) précédente et atteindre une position de course de retour (24) qui se trouve à une distance de ladite position de course de travail (23).
EP04764389A 2003-08-25 2004-08-23 Dispositif de mortaisage servant a realiser des mortaises ou analogue, qui est menage sur des machines-outils pourvues d'un systeme d'entrainement d'outil rotatif, en particulier sur des tours a commande numerique par ordinateur Withdrawn EP1658154A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE2003139344 DE10339344B3 (de) 2003-08-25 2003-08-25 Stoßvorrichtung zum Stoßen von Nuten od. dgl. auf Werkzeugmaschinen mit einem Werkzeugdrehantrieb, insb. auf CNC-Drehmaschinen
DE202004006029 2004-04-14
DE202004010936U DE202004010936U1 (de) 2003-08-25 2004-07-12 Stoßvorrichtung zum Stoßen von Nuten o.dgl. auf Werkzeugmaschinen mit einem Werkzeugdrehantrieb, insbesondere auf CNC-Drehmaschinen
PCT/EP2004/009408 WO2005021197A1 (fr) 2003-08-25 2004-08-23 Dispositif de mortaisage servant a realiser des mortaises ou analogue, qui est menage sur des machines-outils pourvues d'un systeme d'entrainement d'outil rotatif, en particulier sur des tours a commande numerique par ordinateur

Publications (1)

Publication Number Publication Date
EP1658154A1 true EP1658154A1 (fr) 2006-05-24

Family

ID=34279296

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04764389A Withdrawn EP1658154A1 (fr) 2003-08-25 2004-08-23 Dispositif de mortaisage servant a realiser des mortaises ou analogue, qui est menage sur des machines-outils pourvues d'un systeme d'entrainement d'outil rotatif, en particulier sur des tours a commande numerique par ordinateur

Country Status (2)

Country Link
EP (1) EP1658154A1 (fr)
WO (1) WO2005021197A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2402099A1 (fr) 2010-07-02 2012-01-04 AR2P (Atelier de Rectification de Profils de Precision) Unité de mortaisage comportant un outil de mortaisage oscillant

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMO20120076A1 (it) * 2012-03-23 2013-09-24 M T S R L Modulo stozzatore
DE102012111459B4 (de) * 2012-11-27 2014-06-18 Paul Bippus GmbH Drehteilefabrik Verfahren zur Herstellung von Nuten in Drehteilen und Vorrichtung hierzu
DE202015100473U1 (de) 2015-02-02 2015-04-23 Schwarzer Spannzeug Vertriebs Gmbh Werkzeugwechsler
EP4316729A1 (fr) 2022-08-04 2024-02-07 M.T. S.r.l. Module d'usinage par enlèvement de matière

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GB148741A (en) * 1919-06-28 1921-06-23 William Frederick Fischer Improvements in machines for forming grooves in bearings
US2694962A (en) * 1951-04-16 1954-11-23 Charles H Hill Slotting head for power tools
DE1861806U (de) * 1962-08-29 1962-11-08 Gildemeister Werkzeugmasch Schneidplatte fuer drehmeissel.
FR2354842A1 (fr) * 1976-06-16 1978-01-13 Perez Francois Perfectionnements aux dispositifs susceptibles de communiquer a un outil une course alternative a partir d'un mouvement de rotation
SU606690A1 (ru) * 1976-11-23 1978-05-15 Предприятие П/Я А-3681 Устройство дл долблени
DE3925601A1 (de) * 1989-08-02 1991-02-07 Boehringer Werkzeugmaschinen C-achsgetriebe
DE4131036C2 (de) * 1991-09-18 1995-09-21 Oesterle Hermann Kg Werkzeugkopf für Werkzeugmaschinen
US5904065A (en) * 1997-11-26 1999-05-18 Emerson Electric Co. Walking beam drive apparatus

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Title
See references of WO2005021197A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2402099A1 (fr) 2010-07-02 2012-01-04 AR2P (Atelier de Rectification de Profils de Precision) Unité de mortaisage comportant un outil de mortaisage oscillant

Also Published As

Publication number Publication date
WO2005021197A1 (fr) 2005-03-10

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