WO2018083020A1 - Dispositif de rupture pour la séparation par rupture d'une pièce - Google Patents

Dispositif de rupture pour la séparation par rupture d'une pièce Download PDF

Info

Publication number
WO2018083020A1
WO2018083020A1 PCT/EP2017/077575 EP2017077575W WO2018083020A1 WO 2018083020 A1 WO2018083020 A1 WO 2018083020A1 EP 2017077575 W EP2017077575 W EP 2017077575W WO 2018083020 A1 WO2018083020 A1 WO 2018083020A1
Authority
WO
WIPO (PCT)
Prior art keywords
drive
spreading
separation device
fracture separation
fluid
Prior art date
Application number
PCT/EP2017/077575
Other languages
German (de)
English (en)
Inventor
Peter Schwab
Original Assignee
Alfing Kessler Sondermaschinen Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Alfing Kessler Sondermaschinen Gmbh filed Critical Alfing Kessler Sondermaschinen Gmbh
Priority to EP17791090.8A priority Critical patent/EP3535082A1/fr
Publication of WO2018083020A1 publication Critical patent/WO2018083020A1/fr

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
    • B23D31/00—Shearing machines or shearing devices covered by none or more than one of the groups B23D15/00 - B23D29/00; Combinations of shearing machines
    • B23D31/002—Breaking machines, i.e. pre-cutting and subsequent breaking
    • B23D31/003—Breaking machines, i.e. pre-cutting and subsequent breaking for rings

Definitions

  • Fracture separation device for fracture separation of a workpiece
  • the invention relates to a fracture separation device for fracture separation of a workpiece, in particular a motor component and / or a connecting rod, with a Spreizelementan extract for arrangement in a recess of the workpiece with at least one expansion element and a fluidic expansion drive having Spreizantriebsan extract for actuating the at least one expansion element in a spread to Separating a first component of the workpiece, in particular a connecting rod cover, from a second component of the workpiece, in particular a connecting rod, wherein the spreading between a spreading of Spreizelementan extract associated actuating position and a starting position is in particular linearly adjustable, in which the Spreizelementan extract in the recess of the workpiece can be introduced.
  • Such a fracture separation device is described for example in EP 0 661 125 A1.
  • a per se for fracture separation hydraulic expansion drive is used, which can easily apply the forces suitable for fracture separation forces.
  • the hydraulic properties of the known fracture separation device are unfavorable in some situations. In particular, the tightness of the hydraulic is always problematic.
  • the fluid reservoir represents, as it were, a fluidic spring, i. H. that the Spreizantrieb even when Victoriaverstellen in the starting position, the drive fluid displaced back into the fluid reservoir so that it is ready there under tension or pressure for the next stroke or duty cycle of the fracture separation device.
  • the drive fluid under pressure in the fluid reservoir then drives the spreading drive again from the starting position into the actuated position, wherein the latter displaces the expansion element arrangement into the expanded position, so that the engine component experiences the fracture separation.
  • Between the fluid reservoir and the spreading drive is e.g. provided a fluid line.
  • the fracture separation device expediently comprises a workpiece holding arrangement for holding the workpiece, in particular the engine component or connecting rod.
  • the workpiece holding assembly holds the workpiece during the fracture separation process.
  • the drive fluid which is under pressure in the fluid reservoir after the backward displacement of the spreading drive into the starting position is preferably designed and provided for a sudden actuation of the spreading drive from the starting position into the actuating position.
  • a suitable netes volume in the system consisting of fluid storage and spreading drive for the drive fluid present.
  • the drive fluid is provided for a complete adjustment and / or driving the Spreizantriebs from the starting position into the operating position and is suitable.
  • the drive fluid or the pressurized drive fluid is therefore sufficient to actuate the expansion drive from the initial position completely into the actuation position and thus the expansion element arrangement into the spread position.
  • a switching valve is arranged between the fluid reservoir and the expansion drive, which in a passage position or open position allows the drive fluid to flow out of the fluid reservoir to the expansion drive, so that the latter can displace the expansion element arrangement into the expanded position.
  • the switching valve allows, for example, that the drive fluid flows abruptly in the direction of the expansion drive, so this applied.
  • the switching valve has, for example, a valve drive, in particular an electromagnetic valve drive.
  • the switching valve is so controlled, for example, by a controller of the fracture separation device that it closes the switching valve when the rear part drive has foundedver whatsoever the spreading drive to the starting position, the drive fluid is thus displaced back into the fluid reservoir. Subsequently, as it were for the actual fracture separation process, the controller controls the switching valve to open or in the open position, so that the drive fluid flows out of the fluid reservoir abruptly and drives the spreading drive in the direction of the operating position. As a result, the expansion element arrangement is adjusted in the spread position and the engine component, so to speak, cracked.
  • the aforesaid switching valve can be provided parallel to the non-return valve, which allows the drive fluid to flow out of the fluid accumulator in order to actuate the spreading drive abruptly.
  • the check valve is suitably controlled or controllable non-return valve, in which the blocking position can be canceled, for example, by the aforementioned control, so that in repealed or deactivated locking position of the check valve, the drive fluid can flow from the fluid reservoir in the direction of the spreading.
  • the drive system which has the fluid reservoir and the spreading drive, represents a closed system.
  • the drive fluid for example a hydraulic oil, can no longer flow out of the closed system. It oscillates or oscillates, so to speak, between the spreading drive on the one hand and the fluid reservoir on the other hand.
  • the fracture separation device has at least one pressure generator, for example a pump, a pressure cylinder or the like, in addition to the expansion drive.
  • a pressure of the drive fluid in the fluid reservoir can be increased.
  • the pressure generator for example a pump, can be used to pressurize the drive fluid for a first-time operation in the system consisting of fluid reservoir and expansion drive. Even after a first filling or during a first filling of this system, the pressure generator can be advantageous.
  • the pressure generator may be removable from the closed system or from the fracture separation device. For example, a connection to the fluid reservoir or a conduit communicating with the fluid reservoir is provided for the pressure generator.
  • the fracture separation device has a pump or another pressure generator for providing fluidic energy for several working cycles of the expansion drive, that is to say a typical hydraulic pump.
  • the drive energy for the spreading drive for a respective new working stroke is provided by the reset drive.
  • the rear part drive is configured and provided for providing the drive energy of the spreading drive.
  • the rear part drive is preferably an electric drive. But it is also possible that the rear part drive is a pneumatic drive. Combinations are possible, d. H. that the rear part drive, for example, a combined electric and pneumatic drive.
  • the rear part drive can form or have a shock absorber for the spreading drive.
  • the spreading drive it is advantageous if it is a hydraulic drive, for example a hydraulic cylinder.
  • the drive fluid is preferably a hydraulic oil or a hydraulic fluid.
  • a fluidic system of the spreading drive is separately and / or fluidically isolated from a possible fluidic system of the rear part drive.
  • the rear part drive is a drive separate from the spreading drive. This is made clearer by the following explanations:
  • the spreading drive is a hydraulic drive
  • the rear part drive is an electric drive
  • the rear part drive is advantageously a non-fluidic drive, for example an electric drive. It is advantageous if the rear part drive is not in fluid communication with the fluid reservoir.
  • the spreading drive is preferably a linear drive. Also in the rear part drive, it is advantageous if it is a linear drive or comprises a linear drive. But it is also possible that the spreading drive or the rear part drive or both include a rotary drive.
  • the spreading drive and / or the rear part drive are preferably direct drives.
  • the rear part drive it is advantageous if it acts, for example via a transmission, for example, a toothed gear, a lever mechanism or the like, on the spreading drive.
  • the transmission expediently acts in the sense of a power boost, so that, for example, a rear part motor of the rear part drive has a smaller force than the spreading drive, but the transmission gear increases the power of the rear part drive.
  • the transmission gear for example, comprise a rack gear or be formed by it.
  • the transmission gear meshes with a pinion or other output of the rear part drive with a tooth portion, in particular a rack, the Spreizantriebs toumbleverstellen this from the operating position to the starting position.
  • a coupling may be present between the rear part drive and the spreading drive, by means of which the rear part drive can be coupled with the spreading drive for the adjustment from the actuating position to the starting position.
  • the rear part of the spreading drive expediently decoupled from the clutch.
  • the spreading can operate without effect or impact, for example, without braking or the like, the Spreizelementan extract in the spread position.
  • a clutch may be provided so that the pinion of the output of the drive motor for the adjustment of the spreading from the initial position to the operating position can be uncoupled.
  • a clearance is present between the rear part drive and the spreading.
  • the clearance enables, for example, an adjustment of the spreading drive relative to the rear part drive, in particular a drive element of the rear part drive, from the starting position into the actuated position.
  • a for adjusting the Spreizantriebs from the operating position provided in the starting position drive element (for example, an output) of the rear part drive is adjustable in a release position, in which the spreading freely and without contact with the drive element from the starting position adjustable in the operating position is or can drive from the starting position in the operating position.
  • the drive element is a plunger, which is moved away from the spreading drive, so that it can move freely from the starting position into the actuating position.
  • the expansion drive expediently has an output on which at least one expansion element or the at least one expansion element of the expansion element arrangement is arranged in a stationary manner.
  • the output can form the at least one expansion element or at least one expansion element of the expansion element arrangement. Consequently, it is therefore possible for the spreading drive to have or form a component of the spreading element arrangement. It is therefore possible that an output of the expansion drive acts directly as a spreading element on the engine component.
  • the Spreizantriebsanord- tion has at least one shock absorber, which is associated, for example, the operating position or the starting position.
  • a movement of the Spreizantriebs in the operating position (correlated with the expanded position of the Spreizelementan extract) are damped by the shock absorber.
  • the workpiece is preferably a metallic workpiece, such as a ferrous metal, aluminum or the like.
  • the workpiece is suitably an engine component.
  • the engine component is preferably a connecting rod. But it is also possible that the engine component is for example an engine block or another component.
  • the break separation device comprises a workpiece conveyor, for example a rotary table, a chain conveyor or the like, for pre-conveying of the engine components toward or away from the workpiece support structure or both.
  • a workpiece conveyor for example a rotary table, a chain conveyor or the like
  • the fracture separation device is designed for a manual workpiece change.
  • FIG. 1 is a side view of a machine tool having a fracture separation device
  • Figure 2 is a frontal plan view of a lower part of the machine tool
  • FIG. 3 shows a detail D1 from FIG. 2,
  • Figure 4 is a schematic side view of a Spreizantriebsan extract the
  • Figure 5 is an alternative to the Spreizantriebsanix according to Figure 4
  • FIG. 6 shows a further expansion drive arrangement which, instead of the expansion drive arrangements according to FIGS. 4 and 5, can be used in the machine tool according to FIGS.
  • a machine tool 10 shown schematically in the drawing which may also be a machining center or part of a machining center, has a fracture separation device 40 for fracture separation of workpieces 80.
  • the machine tool 10 is intended to process, for example, connecting rods 81 as workpieces 80, an alternative field of application of the invention also being, for example, cracking cylinder covers from an engine block. Other workpieces can be broken in principle according to this type.
  • the connecting rods 81 comprise a connecting rod shaft 82 which at one end region has a so-called small eye 84, that is to say a bearing bore or bearing recess, as well as a large eye, also referred to below as a recess 83, likewise a bearing bore or bearing recess.
  • the two bearing recess or eyes 83 and 84 are provided, for example, for rotatable connection to a crankshaft and a piston (not shown).
  • a connecting rod cover 86 is separated by means of the breaking separation device 40, so that form on the side legs of the connecting rod 85 and the side legs of the connecting rod cover 86, each of which laterally delimit the large eye 83, fracture separation surfaces. These fracture separation surfaces fit one another positively, since the surface topography is ideally identical for both fracture separation surfaces.
  • the machine tool 10 and / or the machining center can have a scoring tool, for example for laser scoring, which is not shown in the drawing.
  • a scoring tool for example for laser scoring, which is not shown in the drawing.
  • a notch 88 facilitating the fracture separation is advantageously provided in the area of the later fracture separation surfaces or lines.
  • the notches 88 could also be provided from the outset on the connecting rod 81, for example, if this is made as a casting or sintered part.
  • the machine tool 10 comprises a machine base 11, for example a machine bed, on which a workpiece holding arrangement 12 is arranged. With the workpiece-holding arrangement, workpieces, namely the workpiece 80 or the connecting rod 81, are held while the further processing by the break separating device 40 takes place.
  • the workpiece holding assembly 12 forms part of the fracture separation device 40.
  • the connecting rod 81 or workpiece 80 is supported by a workpiece support device 13.
  • the support means 13 can act directly on the workpiece 80, so this support directly, or even, for example, a cassette 23, in which the workpiece 80 / connecting rod 81 is arranged.
  • the connecting rod 81 is supported by laterally acting support means 14, 15, 16, 17, whose e.g. supporting elements 18, 19 configured as supporting heads, for example, have a supporting effect from the side of the connecting rod cover 86, while the supporting elements 20 and 21 of the supporting devices 16, 17 are supported from the other side, namely the connecting rod foot 85.
  • the connecting rod 81 is securely held during the fracture separation processing.
  • the machine tool 10 further comprises a rotary table 22 or another workpiece conveyor, with the workpieces, namely workpieces 80 or connecting rods 81 of the fracture separation device 40 can be supplied or can also be led away again by the fracture separation device 40.
  • cassettes 23 are arranged on the rotary table 22, for example.
  • the rotary table 22 further switches and feeds an unprocessed workpiece for further processing by the fracture separation device 40, be adjusted.
  • the fracture separation device 40 is arranged, for example, on a carriage 29 guided linearly on the linear guides 27 or the guide arrangement 26.
  • the fracture separation device 40 comprises a first expansion element 41 and a second expansion element 42 of a expansion element arrangement 48.
  • the spreading 41, 42 can be displaced radially outward by an actuator body 43, wherein they separate the connecting rod 86 from the connecting rod 85 of the connecting rod 81. Then arises in the region of the notches 88 a fracture separation surface, as already explained above.
  • the two spreading elements 41, 42 have an outer peripheral contour which corresponds to an inner peripheral contour of the bearing opening, the large eye or the recess 83. Thus, therefore, the spreading 41, 42 fit fit the inner circumference of the recess 83 fit.
  • the spreading elements 41, 42 form, for example, expanding jaws.
  • the actuating body 43 comprises, for example, a so-called expanding wedge.
  • the operating body 43 is driven by a Spreizantriebsan effetus instruct 50.
  • the Spreizantriebsan effetson extract 50 includes a fluidic, presently hydraulic spreading 51, which actuates the actuating body 43 from a starting position A shown in dashed lines in an operating position B.
  • an actuating portion 49 of the actuating body 43 is displaced out of the guide receptacle 44 between the spreading elements 41, 42 such that a narrower portion of the actuating portion 43 is positioned between opposite wall sides or surfaces of the guide receptacle 44. Accordingly, the spreading elements 41, 42 can be moved towards each other.
  • the spreading elements 41, 42 can be arranged in the recess 83 of the workpiece 80 without a force acting radially outwards in the sense of displacement or enlargement of the recess 83.
  • the actuating portion 49 is adjusted so far in the guide receptacle 44 in that a wider portion of the actuating portion 49 of the actuating body 43, the guide receptacle 44 seeks to increase, so to speak.
  • a guide portion 52 of the example about rod-shaped or at least a longitudinal shape having actuator body 43 is guided linearly on a guide 53.
  • the guide portion 52 is simultaneously an output 54 of the
  • the actuating element or the actuating body 43 is part of the spreading drive 51st
  • a multi-part arrangement would be possible in which a separate from the spreading actuator actuator body is attached to the output of the spreading, for example screwed, jammed, locked or the like.
  • the spreading drive 51 has a drive body 55 arranged in a housing 59.
  • the spreading drive 51 is realized as a hydraulic cylinder, so that the drive body 55 represents a piston which is received linearly movable in a movement chamber 56.
  • the drive body or piston 55 part of the movement chamber 56, which is arranged in the housing 59, in an actuating chamber 57 and an output chamber 58 on.
  • the output chamber 58 communicates with an atmosphere or the environment of the fracture separation device 40, but not directly, but via a muffler 60th
  • the drive body 55 is thus adjusted by the drive fluid 64 from the initial position A in the operating position B, whereby he adjusted the Spreizelementan extract 48 in the spread position S, in particular the spreader 42 from the spreader 41, which should be stationary can, moved away to thereby adjust the connecting rod cap 86 away from the connecting rod 85.
  • the rear part drive 70 is, for example, an electric drive with a rotor 71, which has a drive element 72 integrally or on which a drive element 72 is arranged.
  • the rotor 71 is arranged in a housing 74 of the rear part drive 70 and, for example, by a field winding 73, at least a stator of the restoring drive 70, adjustable.
  • the rear part drive 70 is adjustable between a release pitch F, in which its drive element 72 is removed by a return actuator 66 of the spreading 51, in a reset position R, wherein the drive member 72, the drive body 55 via the return actuator 66 in the Starting position A has adjusted.
  • a release pitch F in which its drive element 72 is removed by a return actuator 66 of the spreading 51, in a reset position R, wherein the drive member 72, the drive body 55 via the return actuator 66 in the Starting position A has adjusted.
  • the rear part drive 70 assumes the release division F, because then the return actuator 66 freely movable and thus the drive body 55 and the actuator body 43 freely movable are.
  • the rear part drive 70 thus does not hinder the movement of the spreading drive 51 from the starting position A into the actuating position B when it assumes its release part F.
  • the drive fluid 64 is again, as it were, added from the actuation chamber 57 into the fluid reservoir 63. pumped back, so that the drive fluid 64, such as hydraulic oil, again in the fluid reservoir 63 is under compressive stress, so it is ready to adjust the spreader 51 from the starting position A in the operating position B.
  • a controller or controller 75 is provided.
  • the controller 75 has, for example, a processor 76 for executing instructions or program code of a program module 77, whose program code performs the method steps described below when this program code is executed by the processor 76.
  • the controller 75 controls the actuator 65 to open the switching valve 62, so that the pressurized drive fluid 64 the Spreizantrieb 51 actuated in the direction of the actuating position B, the workpiece 80 is then cracked.
  • a check valve 62 B may be arranged, in particular a controllable by the controller 75 or driven check valve 62 B, which prevents in a blocking position that fluid from the fluid storage 63 in the direction of the spreading 51 can flow.
  • the check valve 62B allows fluid to flow from the spreading drive 51 in the direction of the fluid reservoir 63.
  • the controller 75 for example, cancel the blocking position of the check valve 62B.
  • the switching valve 62 with its actuator 65 can be omitted.
  • the check valve 62B may be omitted.
  • a Spreizantriebsan boy 150 In a fracture separation device 140, which is very similar to the fracture separation device 40, in particular also has the already discussed spreading 41 and 42 of the Spreizelementan ever 48, the drive concept of a Spreizantriebsan effet ever 150 is slightly modified.
  • the Spreizantriebsan Aunt 50 has the previously discussed spreading 51, which is coupled to the fluid reservoir 63 and can be controlled by the controller 75.
  • the Spreizantriebsan effet extract 150 of the rear part drive 70 is not arranged in the axial extension of the actuator body 43 and the reset actuator 66, but laterally next to the spreading 51st
  • the rear part drive 70 acts with its drive element 72 on a force transmission element 67, which in turn is guided on a guide 68.
  • the drive element 72 of the rear part drive 70 is coupled for movement via a clearance 35 with the force transmission element 67, so that when the rear part drive 70 in its release position F shown in dashed lines is adjusted, both the power transmission element 67 and the spreader 51 is freely adjustable between the starting position A and the operating position B.
  • the clearance 35 is realized, for example, in that a driving pin or entrainment projection 172 of the drive element 72 of the rear part drive 70 is received in a guide 173 of the force transmission element 67 with movement play with respect to a movement axis BA or an axis parallel thereto.
  • the axis of movement BA extends in the present case along the actuating body 43 and transversely to the adjustment axis V, for example at right angles transversely.
  • the axes of movement of the rear part drive 70 and the spreading drive 51 are in the embodiment of Figure 5 parallel to each other, but arranged side by side. In the embodiment of Figure 4, however, the axes of movement of rear part drive and spreading are coaxial.
  • the operating position B is also assigned a shock absorber 69.
  • the return actuator 66 abuts the shock absorber 69.
  • the shock absorber 69 is indicated only schematically.
  • the shock absorber 69 comprises a stop spring against which the end face of the restoring operating element 66 abuts.
  • the workpiece 80 and the connecting rod 81 through the support means and support elements held unlike the previous embodiments, no spreading elements are provided, which are indirectly driven by a Spreizantriebsan Aunt by, for example, a wedge surface arrangement 47 is provided.
  • the spreader drive 251 of the Spreizantriebsan Aunt 250 provides in contrast to immediately a spreader 242 ready.
  • the output of the spreading drive 251 is therefore at one and the same time the spreading element 242 or, in other words, the spreading element 242 is fixedly connected to the output of the spreading drive 251.
  • the spreader 242 engages as well as a spreader 241 in the receptacle 83 of the workpiece 80 a.
  • the expansion element 241 is stationary relative to the machine base 1 1 or at least during the breaking process, for example, fixed to a holder or support surface 246.
  • the expansion element 241 comprises a holding portion 245 which protrudes from a fixing portion 244 and engages in the receptacle 83.
  • the bracket 246 may be a movable bracket to position the spreader 241 in the receptacle 83.
  • On the holder 246 of the holding leg 244 is fixed in place. With the holder 246 so the spreader 241 is firmly connected. In any case, during the spreading process, which is performed by the spreader 242, the spreader 241 is fixedly arranged in the receptacle 83.
  • the expansion element 241 of the expansion element arrangement 248 of the fracture separation device 40 is actuated by the expansion drive 251.
  • the spreading drive 251 has in the manner already described, for example, a fluidic, in particular hydraulic, cylinder, the actuation chamber 57 by means of the drive fluid 64 is pressurized to the drive body 55 and arranged on the drive body 55 output 254 between the operating position B, in which the expansion element 242 is moved away from the expansion element 241 along the adjustment axis V in order to assume the spread position S.
  • a return part drive 270 is provided in the direction of the starting position B, in which the spreading elements 241, 242 and the connecting rod or its recess 83 are adjustable relative to each other, thus therefore the spreading elements 241, 242 are placed in the recess 83.
  • the rear part drive 270 drives via its rotor 271 and a Drive element 272 a power transmission element 267 at.
  • a coupling 273 is preferably provided between the drive element 272 and the force transmission element 267, so that the rear part drive 270 indeed acts in the direction of the starting position A, but is uncoupled from the force transmission element 267 with respect to the return direction toward the actuating position B.
  • the output 254, however, is firmly connected to the power transmission element 267, for example by means of a screw 255.
  • the rear part drive 270 thus couples only for the return movement of the spreading 251 in the power transmission element 267, namely for the actuation direction of the actuating position B in the starting position A.
  • a rear part drive 370 may act directly on the spreading drive 51.
  • a toothing 367 is provided at the output 54 or the actuating body 43, with which a drive element 372, for example a pinion, gear or the like, of the rear part drive 370 meshes.
  • the pinion 372 may be coupled, for example, via a slip clutch, a rotary freewheel or the like, with an electric motor (not shown) of the rear part drive 70, so that the rear part 370 only during the return movement of the operating position B to the starting position A rotatably coupled to the spreading 51, at least in the sense of a power transmission is coupled, while in the opposite direction, from the starting position A to the operating position B, the clutch between the pinion 372 and the drive motor of the rear part drive 370 is disengaged.
  • the rear part drive 370 is thus, for example, a rotary drive. This makes it clear that not only linear drives as in the embodiments illustrated in Figures 4 to 6, but also rotary actuators come as rear part drives in question.
  • the actuation chamber 57 of the spreader drives 51, 151 or 251 can integrally contain the fluid reservoir 63, for example if they are sufficiently large.
  • the fluid reservoir is arranged on the housing or in the housing of the spreading drive, which allows a particularly compact design.
  • a pressure diaphragm is expediently arranged, which can hold the drive fluid 64 utner pressure.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

L'invention concerne un dispositif de rupture (40), destiné à séparer une pièce (80) par rupture, en particulier un composant de moteur et/ou une bielle (81), comprenant un ensemble d'éléments d'écartement (48) disposé dans un évidement (83) de la pièce, au moins un élément d'écartement(41) et un ensemble d'entraînement d'écartement (50) comportant un entraînement d'écartement fluidique (5) et destiné à actionner l'au moins un élément d'écartement dans une position d'écartement (S) pour séparer un premier composant de la pièce, en particulier un chapeau de bielle (86), d'un second composant de la pièce, notamment une tête de bielle (85). L'entraînement d'écartement (51) peut être déplacé en particulier linéairement entre une position d'actionnement (B), associée à la position d'écartement (S) de l'ensemble d'éléments d'écartement (48), et une position de départ (A) dans laquelle l'ensemble d'éléments d'écartement (48) peut être introduit dans l'évidement (83) de la pièce. Selon l'invention, l'ensemble d'entraînement d'écartement comprend un entraînement de retour (70) destiné à ramener l'entraînement d'écartement (51) de la position d'actionnement dans la position de départ (A) et l'ensemble d'entraînement d'écartement comporte un réservoir de fluide (63) accouplé de manière fluidique à l'entraînement d'écartement (51) et destiné à recevoir un fluide d'entraînement, en particulier hydraulique, pour entraîner l'entraînement d'écartement (51). L'entraînement d'écartement (51) refoule le fluide d'entraînement (64) dans le réservoir de fluide (63) lors du retour dans la position de départ (A) au moyen de l'entraînement de retour (70) de sorte que le fluide d'entraînement est sous pression pour entraîner l'entraînement d'écartement de la position de départ (A) dans la position d'actionnement.
PCT/EP2017/077575 2016-11-02 2017-10-27 Dispositif de rupture pour la séparation par rupture d'une pièce WO2018083020A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP17791090.8A EP3535082A1 (fr) 2016-11-02 2017-10-27 Dispositif de rupture pour la séparation par rupture d'une pièce

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016120905.8 2016-11-02
DE102016120905.8A DE102016120905A1 (de) 2016-11-02 2016-11-02 Bruchtrennvorrichtung zum Bruchtrennen eines Werkstücks

Publications (1)

Publication Number Publication Date
WO2018083020A1 true WO2018083020A1 (fr) 2018-05-11

Family

ID=60186305

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2017/077575 WO2018083020A1 (fr) 2016-11-02 2017-10-27 Dispositif de rupture pour la séparation par rupture d'une pièce

Country Status (3)

Country Link
EP (1) EP3535082A1 (fr)
DE (1) DE102016120905A1 (fr)
WO (1) WO2018083020A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0661125A1 (fr) 1993-12-23 1995-07-05 Alfing Kessler Sondermaschinen GmbH Appareil pour casser des bielles
DE102013008369B3 (de) * 2013-05-16 2014-10-02 Alfing Kessler Sondermaschinen Gmbh Bruchtrennvorrichtung

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005036902A (ja) * 2003-07-16 2005-02-10 Honda Motor Co Ltd コネクティングロッドの分割加工方法及びその分割加工装置
DE102013008371A1 (de) * 2013-05-16 2014-11-20 Alfing Kessler Sondermaschinen Gmbh Bruchtrennvorrichtung

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0661125A1 (fr) 1993-12-23 1995-07-05 Alfing Kessler Sondermaschinen GmbH Appareil pour casser des bielles
DE102013008369B3 (de) * 2013-05-16 2014-10-02 Alfing Kessler Sondermaschinen Gmbh Bruchtrennvorrichtung

Also Published As

Publication number Publication date
EP3535082A1 (fr) 2019-09-11
DE102016120905A1 (de) 2018-05-03

Similar Documents

Publication Publication Date Title
EP3056891B1 (fr) Support d'echantillon de materiau comprenant une unite de commande
EP3174650B1 (fr) Dispositif de poinçonnage et procédé de poinçonnage d'une pièce
DE10206630B4 (de) Verfahren und Vorrichtung zum Hochgeschwindigkeitspressen von Werkstücken
EP3731997A1 (fr) Outil hydraulique pour un dispositif de traction et/ou de pressage
DE2911820C2 (de) Schnittschlagunterdrückung an hydraulischen Stanzpressen
EP2848398B1 (fr) Dispositif et procédé destinés à empêcher la rupture d'un outil lors du coupage fin et/ou du déformage d'une pièce usinée
DE2600948B2 (de) Krafteinheit als Arbeitsorgan, z.B. für Pressen zum Formgeben, Verdichten usw
EP3880975B1 (fr) Système d'actionneur électrohydrostatique
EP3569354A1 (fr) Dispositif de fixation de pièces à usiner et installation d'usinage
EP0335939B1 (fr) Dispositif hydraulique d'entrainement
EP3056291B1 (fr) Presse dotée d'un amortisseur de choc de coupe
DE4335318A1 (de) Werkzeugmaschine
WO2001056776A1 (fr) Presse
EP3535082A1 (fr) Dispositif de rupture pour la séparation par rupture d'une pièce
EP3115190A1 (fr) Dispositif et procede de commande de l'entrainement principal d'une presse pour decoupage de precision
EP1984132B1 (fr) Pince d'usinage hydraulique
DE102014106516B4 (de) Werkzeug zum Dreh-Drehräumen von Werkstücken
EP2815832B1 (fr) Dispositif de séparation par rupture
AT504045A1 (de) Vorrichtung zum radialen schmieden eines werkstückes
DE102013008371A1 (de) Bruchtrennvorrichtung
DE102004007265B4 (de) Bearbeitungszange
EP1350582A2 (fr) Mécanisme d'éjection au côté matrice dans une presse à un ou multiples étages
DE10208720B4 (de) Stempelseitige Auswerfvorrichtung für Werkstücke bei Ein- oder Mehrstufenpressen
DE102005004769A1 (de) Hydraulische Bearbeitungszange
DE102015016773A1 (de) Verfahren zum Bearbeiten und zur Formgebung metallischer und anderer Werkstoffe

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17791090

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 2017791090

Country of ref document: EP

Effective date: 20190603