EP1748854B1 - Machine-outil avec entrainement de levage pour soumettre une piece a usiner a l'action d'un outil d'usinage - Google Patents

Machine-outil avec entrainement de levage pour soumettre une piece a usiner a l'action d'un outil d'usinage Download PDF

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Publication number
EP1748854B1
EP1748854B1 EP20050752798 EP05752798A EP1748854B1 EP 1748854 B1 EP1748854 B1 EP 1748854B1 EP 20050752798 EP20050752798 EP 20050752798 EP 05752798 A EP05752798 A EP 05752798A EP 1748854 B1 EP1748854 B1 EP 1748854B1
Authority
EP
European Patent Office
Prior art keywords
workpiece
spindle
drive
spindle transmission
force
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.)
Active
Application number
EP20050752798
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German (de)
English (en)
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EP1748854A1 (fr
Inventor
Frank Schmauder
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.)
Trumpf Werkzeugmaschinen SE and Co KG
Original Assignee
Trumpf Werkzeugmaschinen SE and Co KG
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 Trumpf Werkzeugmaschinen SE and Co KG filed Critical Trumpf Werkzeugmaschinen SE and Co KG
Priority to EP20050752798 priority Critical patent/EP1748854B1/fr
Priority to PL05752798T priority patent/PL1748854T3/pl
Priority to ES05752798T priority patent/ES2306162T3/es
Publication of EP1748854A1 publication Critical patent/EP1748854A1/fr
Application granted granted Critical
Publication of EP1748854B1 publication Critical patent/EP1748854B1/fr
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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
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/002—Drive of the tools
    • 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
    • Y10T83/00—Cutting
    • Y10T83/869—Means to drive or to guide tool
    • 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
    • Y10T83/00—Cutting
    • Y10T83/869—Means to drive or to guide tool
    • Y10T83/8765—Magnet- or solenoid-actuated tool
    • Y10T83/8768—Solenoid core is tool or tool support
    • 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
    • Y10T83/00—Cutting
    • Y10T83/869—Means to drive or to guide tool
    • Y10T83/8789—With simple revolving motion only
    • Y10T83/8794—Revolving tool moves through recess in work holder or cooperating tool
    • 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
    • Y10T83/00—Cutting
    • Y10T83/869—Means to drive or to guide tool
    • Y10T83/8821—With simple rectilinear reciprocating motion only
    • Y10T83/8841—Tool driver movable relative to tool support
    • Y10T83/8847—Screw actuated tool support

Definitions

  • the invention relates to a machine for machining workpieces, with a machining tool and with a lifting drive, by means of which a workpiece can be acted upon by the machining tool and having a spindle drive with at least one drive unit and with a force introduction element, wherein the drive unit spindle drive elements in the form of a drive spindle and a seated on it spindle nut, which are supported via a threaded engagement with each other, one of which as close to the workpiece Spindle drive element and the other is provided as remote workpiece spindle drive element and are under application of the workpiece by the drive tool by a drive motor about a spindle drive shaft rotatable relative to each other, wherein the workpiece near spindle drive element acted upon by the force application element with a force acting on the workpiece by the machining tool force and is supported via the threaded engagement under the action of this force on the associated workpiece remote spindle drive element.
  • Such a machine is disclosed in JP 04172133 A ,
  • the prior art relates to a punching machine with a motor-driven lifting drive for a punching tool.
  • the linear actuator comprises a spindle drive with a single drive spindle and a seated thereon and motor-driven spindle nut.
  • a rotary drive is provided on the previously known punching machine, by means of which the punching tool can be adjusted in rotation about the lifting axis of the lifting drive.
  • the present invention has set itself the goal.
  • a lifting drive is provided with a spindle drive comprising two coaxial drive units with mutually associated spindle drive elements.
  • the introduction of machining forces or resulting from these reaction forces in the spindle drive takes place in the direction of the common spindle drive axis between the threaded engagements of the workpiece near and the workpiece remote spindle drive elements of the two drive units.
  • the forces to be absorbed by the spindle drive during workpiece machining are distributed evenly between the two drive units. This is particularly advantageous for workpiece machining with high machining forces.
  • the common force transmission element of the two drive units of the spindle drive in the interest of constructive simplification of the linear actuator unit in particular integrally formed with a power transmission element, which in turn transmits the force to be introduced from the common force introduction element in the drive units in the common force application element ,
  • the Erfindungsbauart according to claim 5 is characterized by a particularly compact design.
  • each of the drive units is usually associated with its own drive motor.
  • the operation of the drive units but also with a single, correspondingly powerful drive motor is possible. .
  • Claim 8 relates to a particularly significant for operational practice opportunity to implement the inventive concept. For example, punching machines of the type required in the art often have to apply high machining forces or to remove corresponding reaction forces.
  • an effective in the direction of the spindle drive axis axial biasing device is provided on punching machines according to the invention for the workpiece-near spindle drive elements.
  • Such biasing devices increase the life and reliability of the lifting drive inventive punching machines.
  • the biasing device counteracts a sudden load change on the lifting drive. With appropriate selection of the bias results in a less wear causing swelling stress of the spindle drive instead of changing stress.
  • a punching machine 1 has a C-shaped machine frame 2 with an upper frame leg 3 and a lower frame leg. 4
  • an electric lifting drive 5 is provided for a designed as a punch 6 machining tool.
  • the punch 6 is mounted on a tool bearing 7.
  • the lifting drive 5 can also be used as a rotary drive in modified mode and then serves for rotational adjustment of the punch 6 about the lifting axis 8 in the direction of a double arrow 9. Movements in the direction of the lifting axis 8 are of the punch 6 at work strokes for punching machining of workpieces and at executed to the strokes subsequent return strokes. A rotational adjustment is made to change the rotational position of the punch 6 with respect to the lifting axis 8.
  • the punch 6 interacts with a punching die, not shown, in the form of a punching die.
  • a punching die not shown, in the form of a punching die.
  • This is integrated in the usual way in a workpiece table 10, which in turn is mounted on the lower frame leg 4 of the punching machine 1.
  • the relative movements of the sheet in relation to the punch 6 and the punching die required during workpiece machining are effected by means of a a throat compartment 11 of the machine frame 2 accommodated coordinate guide 12 of conventional design executed.
  • the drive unit 14 comprises a drive spindle 16 and a spindle nut 17 seated thereon, the drive unit 15 a drive spindle 18 and a spindle nut 19 seated thereon.
  • the drive spindle 16 and the spindle nut 17 are threadedly engaged via a threaded engagement 20, the drive spindle 18 and the spindle nut 19 21 interconnected.
  • the two drive units 14, 15 are designed in opposite directions, but otherwise identical. In particular, both drive units 14, 15 are ball screws.
  • For motor drive of the spindle drive 13 are electric drive motors 22, 23, in the example shown torque motors, provided.
  • a stator 24 of the drive motor 22 and a stator 25 of the drive motor 23 are mounted on a drive housing 26.
  • a rotor 27 of the drive motor 22 is gearless connected to the spindle nut 17 of the drive unit 14. Accordingly, the spindle nut 19 of the drive unit 15 is fixed to a rotor 28 of the drive motor 23.
  • due to the mutual axial overlap of the spindle nuts 17, 19 on the one hand and the components of the drive motors 22, 23 on the other This results in a comparatively small volume of construction for the overall arrangement.
  • the drive spindles 16, 18 of the drive units 14, 15 are formed as hollow spindles and connected to each other via a common force introduction element 29 to form a one-piece unit.
  • the drive spindle 16 receives in its interior a plunger 30 which serves as a power transmission element.
  • a plunger 30 which serves as a power transmission element.
  • the plunger 30 is supported in this area via a bearing bush 39 in the radial direction.
  • the plunger 30 With its opposite axial end of the plunger 30 bears against the force introduction element 29.
  • the plunger 30 is connected at the respective end face with the force introduction element 29 and at the said end face directly adjacent portion of its extending in the direction of a spindle drive axis 31 outer wall with the drive spindle 16 of the drive unit 14. Over the remaining axial length of the drive spindle 16 is between this and the plunger 30 no connection. Rather, remains in this area between the inner wall of the drive spindle 16 and the outer wall of the plunger 30 in a Fig. 2 suggestively recognizable, in cross-section annular gap 40th
  • the spindle nuts 17, 19 of the drive units 14, 15 are driven by the drive motors 22, 23 with mutually opposite directions of rotation and coinciding rotational speeds about the coincident with the stroke axis 8 spindle drive shaft 31. Due to the opposite directions of rotation and the coinciding rotational speeds of the spindle nuts 17, 19, the integrally interconnected drive spindles 16, 18 of none of the spindle nuts 17, 19 are taken in the direction of rotation. The drive spindles 16, 18 and with them the tool bearing 7 and the punching tool 6 do not change the rotational position with respect to the lifting axis 8 or the spindle drive axis 31.
  • a force builds up on the punch 6, which acts in any case in the direction of the lifting axis 8 and the spindle drive axis 31. It is also conceivable a force in the transverse direction of the spindle drive axis 31.
  • About the plunger 30 are both at the punch 6 in the direction of lifting axis 8 and spindle drive shaft 31 constructed forces and optionally removed effective transverse forces in the force introduction element 29, which in turn between the threaded engagements 20, 21 of drive spindle 16 and spindle nut 17 on the one hand and drive spindle 18 and spindle nut 19 on the other.
  • the plunger 30 acts like a two-armed lever.
  • the "pivot point" of this two-armed lever is defined by the bearing bush 39.
  • the plunger 30 has a relatively short-term, to the force introduction element 29 through a relatively long lever arm. Accordingly, relatively small transverse forces on the force introduction element 29 result even from large transverse forces on the punch 6.
  • the spindle nuts 17, 19 are operated with the same direction of rotation.
  • the spindle nuts 17, 19 take the drive spindles 16, 18 and with these the punch 6 in the direction of rotation. An axial displacement of the punch 6 does not take place.
  • the rotational adjustment of the punch 6 is controlled by means of the drive control 32.
  • Parts of the drive control 32 are detection devices 33, 34, 35 and an evaluation and control unit 36.
  • the detection device 33 are rotation angle and direction of rotation of the punch 6, by means of the detection device 34 rotational angle or rotational speed and direction of rotation of the spindle nut 17 and by means of the detection device 35 rotation angle or rotational speed and direction of rotation of the spindle nut 19 is monitored.
  • the evaluation and control unit 36 controls on the basis of the means of detection 33, 34, 35 information obtained the drive motors 22, 23rd
  • a linear actuator 45 like him Fig. 3 shows, has a spindle drive 53 with drive units 54, 55.
  • the drive unit 54 comprises a drive spindle 56 and a spindle nut 57, the drive unit 55 a drive spindle 58 and a spindle nut 59.
  • the drive spindles 56, 58 are formed as hollow spindles. Between the drive spindle 56 and the spindle nut 57, a threaded engagement 60, between the drive spindle 58 and the spindle nut 59, a threaded engagement 61 is provided.
  • a power transmission element in the form of a plunger 70 is arranged in the interior of the drive spindle 56.
  • the drive spindle 56 sits without in the direction of the spindle drive axis 31 effective connection with the plunger 70 on this. Accordingly, the drive spindle 58 is arranged on the axial extension 77 of the plunger 70. Effectively connected in the axial direction are the drive spindles 56, 58 exclusively with the force introduction element 69. Fixing screws 78, which fix the drive spindles 56, 58 to the force introduction element 69 on all sides, are used for this purpose. In the transverse direction of the spindle drive shaft 31 are the drive spindles 56, 58 each without play on the plunger 70 and the axial projection 77 at.
  • the drive spindles 56, 58 form tool-side spindle drive elements, the spindle nuts 57, 59 workpiece remote spindle drive elements of the drive units 54, 55.
  • Fig. 3 Apart from the described deviations of the linear actuator 45 agrees Fig. 3 with the lifting drive 5 after Fig. 2 constructive match.
  • the same reference numerals are used for each other corresponding components are in the FIGS. 2 and 3 the same reference numerals are used.
  • Deviating from the conditions according to Fig. 2 causes the force introduction element 69 of the lifting drive 45 after Fig. 3 only an even distribution of forces built on the punch 6 in the direction of the lifting axis 8 and the spindle drive shaft 31 on the drive units 54, 55.
  • On the punch 6 effective lateral forces are due to the backlash-free transverse support of the plunger 70 and the axial projection 77 on the plunger 70 in the drive spindle 56 and removed via the axial projection 77 in the drive spindle 58.
  • Fig. 4 shows a lifting drive 85, in the case of the drive spindles 96, 98 of drive units 94, 95 of a spindle drive 93 gearless with rotors 27, 28 of drive motors 22, 23 are connected.
  • the drive spindles 96, 98 form workpiece remote spindle drive elements of the drive units 94, 95.
  • These are attached to a force introduction element 109 by means of fastening screws 118 and thereby connected in a force-transmitting manner with the force introduction element 109.
  • the force introduction element 109 is formed integrally with a ram 110 provided as a force transmission element.
  • a gap between the plunger 110 and the drive spindle 96 is assigned the reference numeral 120.
  • the tool bearing 7 is provided with the punch 6. Threaded engagement between the drive spindles 96, 98 and the respective associated spindle nut 97, 98 are the reference numerals 100, 101 assigned. Also in Fig. 4 Incidentally, the same reference numerals as in the preceding figures are used.
  • a lifting drive 125 comprises a spindle drive 133 with drive units 134, 135.
  • Deviating from the conditions according to Fig. 2 is in the case of the lifting drive 125 after Fig. 5 a power transmission element in the form of a plunger 150 in the direction of the lifting axis 8 and the spindle drive shaft 31 exclusively on the drive spindle 136th supported.
  • an outer collar 151 attached thereto is used, which engages in the drive spindle 136 in the radial direction.
  • an in Fig. 5 indicated gap 160 is provided between the outer wall of the plunger 150 and the inner wall of the drive spindle 136.
  • a force introduction element 149 At its end remote from the punch 6 end of the plunger 150 is in a force introduction element 149 on. This is radially expanded relative to the plunger 150 and is located on the inner wall of the transition region between the drive spindles 136, 138 transversely to the stroke direction 8 and the spindle drive shaft 131 without play. An effective connection in the axial direction between the force introduction element 149 and the drive spindles 136, 138 does not exist.
  • the force introduction element 149 effects a uniform distribution of forces built up on the punch 6 transversely to the lifting axis 8, but not on the drive units 134, 135 acting on the punch 6 in the direction of the lifting axis 8
  • a bearing bush 159 of the plunger 150 acts as a "pivot point".
  • a linear actuator 165 like him Fig. 6 shows, largely corresponds to the lifting drive 5 after Fig. 2 ,
  • the lifting drive 165 with an axial biasing device 166 equipped.
  • the axial prestressing device 166 comprises a piston rod 167, which is connected on the one hand to the common force introduction element 29 with the assembly formed by the drive spindles 16, 18. With its opposite axial end, the piston rod 167 passes through a piston 168. With a radial projection 169, the piston rod 167 rests on the piston 168.
  • the piston 168 is movably guided in a cylinder ring 170 provided on the drive housing 26 in the direction of the spindle drive axis 31.
  • the piston rod 167 is rotatable relative to the piston 168 about its longitudinal axis.
  • a pressure chamber 171 formed between the piston 168 and the drive housing 26 or the cylinder ring 170 is filled with air and is sealed against the environment by sealing elements 172.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Turning (AREA)
  • Transmission Devices (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Claims (10)

  1. Machine pour l'usinage de pièces, avec un outil d'usinage (6) et avec un entraînement de levage (5, 45, 85, 125, 165) au moyen duquel une pièce à usiner peut être sollicitée par l'outil d'usinage (6) et qui présente une transmission à broche (13, 53, 93, 133) avec au moins une unité d'entraînement (14, 15, 54, 55, 94, 95, 134, 135) ainsi qu'avec un élément (29, 69, 109, 149) d'introduction de force, sachant que l'unité d'entraînement (14, 15, 54, 55, 94, 95, 134, 135) comprend des éléments de transmission à broche sous la forme d'une broche d'entraînement et d'un écrou de broche monté sur cette broche, qui sont soutenus l'un contre l'autre via un engagement fileté (20, 21, 60, 61, 100, 101, 140, 141) et dont l'un est prévu comme élément (16, 18, 56, 58, 97, 99, 136, 138) de transmission à broche proche de la pièce et l'autre comme élément (17, 19, 57, 59, 96, 98, 137, 139) de transmission à broche éloigné de la pièce, et qui sont rotatifs l'un par rapport à l'autre autour d'un axe (31) de transmission à broche au moyen d'un moteur d'entraînement (22, 23), la pièce étant alors sollicitée par l'outil d'usinage (6), sachant que l'élément (16, 18, 56, 58, 97, 99, 136, 138) de transmission à broche proche de la pièce peut être sollicité par l'intermédiaire de l'élément (29, 69, 109, 149) d'introduction de force par une force exercée du fait de la sollicitation de la pièce par l'outil d'usinage (6) et, sous l'action de cette force, est soutenu contre l'élément associé (17, 19, 57, 59, 96, 98, 137, 139) de transmission à broche éloigné de la pièce par l'intermédiaire de l'engagement fileté (20, 21, 60, 61, 100, 101, 140, 141), caractérisée en ce que l'entraînement de levage (5, 45, 85, 125, 165) présente une transmission à broche (13, 53, 93, 133) avec deux unités d'entraînement (14, 15 ; 54, 55 ; 94, 95 ; 134, 135) qui sont disposées en juxtaposition le long d'un axe commun (31) de transmission à broche, pour lesquelles il est prévu un élément commun (29, 69, 109, 149) d'introduction de force et qui comprennent chacune un élément (16, 18, 56, 58, 97, 99, 136, 138) de transmission à broche proche de la pièce et un élément (17, 19, 57, 59, 96, 98, 137, 139) de transmission à broche éloigné de la pièce, sachant que l'élément commun (29, 69, 109, 149) d'introduction de force est relié en transmission de force dans la direction de l'axe (31) de transmission à broche, entre les engagements filetés (20, 21, 60, 61, 100, 101, 140, 141) de l'élément (16, 18, 56, 58, 97, 99, 136, 138) de transmission à broche proche de la pièce et de l'élément associé (17, 19, 57, 59, 96, 98, 137, 139) de transmission à broche éloigné de la pièce des deux unités d'entraînement (14, 15 ; 54, 55 ; 94, 95 ; 134, 135), aux éléments (16, 18, 56, 58, 97, 99, 136, 138) de transmission à broche proches de la pièce de part et d'autre en vue d'une sollicitation par une force agissant du fait de la sollicitation de la pièce par l'outil d'usinage (6), et sachant que les éléments (16, 18, 56, 58, 97, 99, 136, 138) de transmission à broche proches de la pièce de part et d'autre sont, sous l'action de la force qui les sollicite, soutenus par l'intermédiaire de l'engagement fileté respectif (20, 21, 60, 61, 100, 101, 140, 141) contre l'élément respectivement associé (17, 19, 57, 59, 96, 98, 137, 139) de transmission à broche éloigné de la pièce.
  2. Machine selon la revendication 1, caractérisée en ce que l'élément commun (29, 69, 109) d'introduction de force est relié en transmission de force aux éléments (16, 18, 56, 58, 97, 99) de transmission à broche proches de la pièce de part et d'autre en vue d'une sollicitation par une force agissant dans la direction de l'axe (31) de transmission à broche du fait de la sollicitation de la pièce par l'outil d'usinage (6).
  3. Machine selon l'une des revendications précédentes, caractérisée en ce que l'élément commun (29, 109, 149) d'introduction de force est relié en transmission de force aux éléments (16, 18, 97, 99, 136, 138) de transmission à broche proches de la pièce de part et d'autre en vue d'une sollicitation par une force agissant en direction transversale à l'axe (31) de transmission à broche du fait de la sollicitation de la pièce par l'outil d'usinage (6).
  4. Machine selon l'une des revendications précédentes, caractérisée en ce que l'élément commun (29, 69, 109, 149) d'introduction de force est réalisé en une unité de construction, de préférence d'un seul tenant, avec un élément (30, 70, 110, 150) de transmission de force au moyen duquel la force à introduire par l'élément commun (29, 69, 109, 149) d'introduction de force dans les éléments (16, 18, 56, 58, 97, 99, 136, 138) de transmission à broche proches de la pièce des unités d'entraînement (14, 15 ; 54, 55 ; 94, 95 ; 134, 135) de part et d'autre peut être introduite dans l'élément commun (29, 69, 109, 149) d'introduction de force.
  5. Machine selon l'une des revendications précédentes, caractérisée en ce qu'au moins une unité d'entraînement (14, 15 ; 54, 55 ; 94, 95 ; 134, 135) de la transmission à broche (13, 53, 93, 133) comprend comme un des éléments de transmission à broche une broche d'entraînement sous la forme d'une broche creuse, et en ce que la broche creuse comprend à l'intérieur un élément (30, 70, 110, 150) de transmission de force au moyen duquel la force à introduire par l'élément commun (29, 69, 109, 149) d'introduction de force dans les éléments (16, 18, 56, 58, 97, 99, 136, 138) de transmission à broche proches de la pièce des unités d'entraînement (14, 15 ; 54, 55 ; 94, 95 ; 134, 135) de part et d'autre peut être introduite dans l'élément commun (29, 69, 109, 149) d'introduction de force.
  6. Machine selon l'une des revendications précédentes, caractérisée en ce que l'élément (16, 18, 56, 58, 97, 99, 136, 138) de transmission à broche proche de la pièce et l'élément (17, 19, 57, 59, 96, 98, 137, 139) de transmission à broche éloigné de la pièce d'au moins une unité d'entraînement (14, 15 ; 54, 55 ; 94, 95 ; 134, 135) sont précontraints l'un contre l'autre en produisant un engagement fileté (20, 21, 60, 61, 100, 101, 140, 141) sensiblement sans jeu.
  7. Machine selon l'une des revendications précédentes, caractérisée en ce que les unités d'entraînement (14, 15 ; 54, 55 ; 94, 95 ; 134, 135) de la transmission à broche (13, 53, 93, 133) sont conçues à sens contraires, et les éléments de transmission à broche mutuellement associés des unités d'entraînement (14, 15 ; 54, 55 ; 94, 95 ; 134, 135) sont rotatifs les uns par rapport aux autres dans des directions de rotation mutuellement opposées autour de l'axe (31) de transmission à broche.
  8. Machine selon l'une des revendications précédentes, sous la forme d'une poinçonneuse (1) dotée d'un outil de poinçonnage comme outil d'usinage (6).
  9. Machine selon la revendication 8, caractérisée en ce qu'il est prévu pour les éléments (16, 18, 56, 58, 97, 99, 136, 138) de transmission à broche proches de la pièce un moyen de précontrainte axiale (166) agissant dans la direction de l'axe (31) de transmission à broche, qui permet de produire une force de précontrainte qui s'oppose au mouvement des éléments (16, 18, 56, 58, 97, 99, 136, 138) de transmission à broche proches de la pièce qui est associé au mouvement de l'outil de poinçonnage pour solliciter la pièce.
  10. Machine selon la revendication 9, caractérisée en ce que le moyen de précontrainte axiale (166) est rattaché à l'élément commun (29, 69, 109, 149) d'introduction de force sur les éléments (16, 18, 56, 58, 97, 99, 136, 138) de transmission à broche proches de la pièce.
EP20050752798 2004-05-27 2005-05-25 Machine-outil avec entrainement de levage pour soumettre une piece a usiner a l'action d'un outil d'usinage Active EP1748854B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP20050752798 EP1748854B1 (fr) 2004-05-27 2005-05-25 Machine-outil avec entrainement de levage pour soumettre une piece a usiner a l'action d'un outil d'usinage
PL05752798T PL1748854T3 (pl) 2004-05-27 2005-05-25 Obrabiarka z napędem podnoszenia do działania narzędzia obróbkowego na detal
ES05752798T ES2306162T3 (es) 2004-05-27 2005-05-25 Maquina herramienta con un accionamiento de carrera para someter una pieza de trabajo a la accion de una herramienta de procesado.

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP04012522A EP1600224A1 (fr) 2004-05-27 2004-05-27 Machine avec mécanisme de levage pour travailler une pièce avec un outil
PCT/EP2005/005635 WO2005118176A1 (fr) 2004-05-27 2005-05-25 Machine-outil a entrainement en levage pour soumettre une piece a usiner a l'action d'un outil d'usinage
EP20050752798 EP1748854B1 (fr) 2004-05-27 2005-05-25 Machine-outil avec entrainement de levage pour soumettre une piece a usiner a l'action d'un outil d'usinage

Publications (2)

Publication Number Publication Date
EP1748854A1 EP1748854A1 (fr) 2007-02-07
EP1748854B1 true EP1748854B1 (fr) 2008-05-21

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Family Applications (2)

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EP04012522A Withdrawn EP1600224A1 (fr) 2004-05-27 2004-05-27 Machine avec mécanisme de levage pour travailler une pièce avec un outil
EP20050752798 Active EP1748854B1 (fr) 2004-05-27 2005-05-25 Machine-outil avec entrainement de levage pour soumettre une piece a usiner a l'action d'un outil d'usinage

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP04012522A Withdrawn EP1600224A1 (fr) 2004-05-27 2004-05-27 Machine avec mécanisme de levage pour travailler une pièce avec un outil

Country Status (9)

Country Link
US (1) US7694616B2 (fr)
EP (2) EP1600224A1 (fr)
JP (1) JP4705634B2 (fr)
CN (1) CN100469478C (fr)
AT (1) ATE395995T1 (fr)
DE (1) DE502005004201D1 (fr)
ES (1) ES2306162T3 (fr)
PL (1) PL1748854T3 (fr)
WO (1) WO2005118176A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008017327A1 (fr) * 2006-08-11 2008-02-14 Ernst Grob Ag Machine de découpage et d'estampage
EP2533927B1 (fr) * 2011-04-28 2015-09-30 Voith Patent GmbH Machine à estamper et/ou à grignoter et procédé de commande d'une machine à estamper et/ou à grignoter
DE102013225200A1 (de) * 2013-12-06 2015-06-11 Continental Teves Ag & Co. Ohg Linearaktuator
CN106273608B (zh) * 2016-11-03 2018-04-10 西安思源学院 一种双电机螺旋副直驱式回转头压力机
CN106739119B (zh) * 2016-12-30 2019-02-22 江苏扬力数控机床有限公司 一种节能型电动冲头及其工作方法

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US4587737A (en) * 1984-08-02 1986-05-13 Wilson James M Hand punch
WO1987007210A1 (fr) * 1986-05-29 1987-12-03 Moskovskoe Vysshee Tekhnicheskoe Uchilische Imeni Presse a vis a double effet
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Also Published As

Publication number Publication date
US20070107574A1 (en) 2007-05-17
EP1748854A1 (fr) 2007-02-07
PL1748854T3 (pl) 2008-10-31
US7694616B2 (en) 2010-04-13
JP2008500179A (ja) 2008-01-10
ATE395995T1 (de) 2008-06-15
ES2306162T3 (es) 2008-11-01
CN1960819A (zh) 2007-05-09
CN100469478C (zh) 2009-03-18
WO2005118176A1 (fr) 2005-12-15
JP4705634B2 (ja) 2011-06-22
DE502005004201D1 (de) 2008-07-03
EP1600224A1 (fr) 2005-11-30

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