EP2617522B1 - Dispositif de traitement précis d'une surface périphérique de pièce usinée agencée de manière excentrique par rapport à un axe de pièce usinée - Google Patents

Dispositif de traitement précis d'une surface périphérique de pièce usinée agencée de manière excentrique par rapport à un axe de pièce usinée Download PDF

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Publication number
EP2617522B1
EP2617522B1 EP12152051.4A EP12152051A EP2617522B1 EP 2617522 B1 EP2617522 B1 EP 2617522B1 EP 12152051 A EP12152051 A EP 12152051A EP 2617522 B1 EP2617522 B1 EP 2617522B1
Authority
EP
European Patent Office
Prior art keywords
workpiece
bearing part
force
axis
force application
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.)
Revoked
Application number
EP12152051.4A
Other languages
German (de)
English (en)
Other versions
EP2617522A1 (fr
Inventor
Oliver Hildebrandt
Christoph Weber
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.)
Supfina Grieshaber GmbH and Co KG
Original Assignee
Supfina Grieshaber GmbH 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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=45655184&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2617522(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Supfina Grieshaber GmbH and Co KG filed Critical Supfina Grieshaber GmbH and Co KG
Priority to EP12152051.4A priority Critical patent/EP2617522B1/fr
Priority to US13/737,585 priority patent/US9114497B2/en
Priority to KR1020130006152A priority patent/KR101583395B1/ko
Priority to CN201310021817.2A priority patent/CN103213042B/zh
Priority to BR102013001761-2A priority patent/BR102013001761B1/pt
Publication of EP2617522A1 publication Critical patent/EP2617522A1/fr
Application granted granted Critical
Publication of EP2617522B1 publication Critical patent/EP2617522B1/fr
Revoked legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
    • B24B19/08—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding non-circular cross-sections, e.g. shafts of elliptical or polygonal cross-section
    • B24B19/12—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding non-circular cross-sections, e.g. shafts of elliptical or polygonal cross-section for grinding cams or camshafts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
    • B24B21/02—Machines or devices using grinding or polishing belts; Accessories therefor for grinding rotationally symmetrical surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B41/00—Component parts such as frames, beds, carriages, headstocks
    • B24B41/007—Weight compensation; Temperature compensation; Vibration damping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
    • B24B49/16—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation taking regard of the load
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
    • B24B5/02—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work
    • B24B5/04—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work for grinding cylindrical surfaces externally
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
    • B24B5/36—Single-purpose machines or devices
    • B24B5/42—Single-purpose machines or devices for grinding crankshafts or crankpins

Definitions

  • the invention relates to a device for fine machining of a workpiece peripheral surface, in particular a crank bearing of a crankshaft, eccentrically arranged with respect to a workpiece axis of a workpiece, with a rotary drive device for rotationally driving the workpiece about the workpiece axis, with a pressure device for pressing a finishing tool against the workpiece peripheral surface, and with a bearing device for the storage of the pressing device on a frame.
  • a device for machining peripheral surfaces of substantially rotationally symmetrical workpiece sections on workpieces, such as camshafts and crankshafts, which have a workpiece axis and a plurality of offset along the workpiece axis Have workpiece sections.
  • the DE 10 2007 059 926 A1 proposes to provide with respect to the workpiece axis to each other angularly offset Finishechen. This should allow a space-saving and structurally simplified arrangement of parallel to the workpiece axis juxtaposed finishing units.
  • the present invention has for its object to provide a device of the type mentioned, which allows high quality requirements and at the same time economic fine machining of a workpiece.
  • the device according to the invention makes it possible to reduce the inertia forces occurring during the fine machining of a workpiece or even to avoid them at least as far as possible.
  • the contact forces acting in the contact area between the finishing tool and the workpiece can be evened out, thus even the removal rates are made uniform and the machining quality can be improved.
  • the braking forces make it possible to decelerate the reciprocating bearing part of the bearing device before reaching a reversing position.
  • the acceleration forces make it possible to drive the bearing part in the direction of the other reversal position during or after reaching a reversal position. As a result, a significant reassurance of the storage facility reached.
  • the force application device exerts an acceleration force directed in the direction of the other reversal position on the bearing part, at least in one of the reversal positions of the bearing part. This allows compensation of the inertia force occurring in the reverse position, in particular in the case of a bearing part which moves in the vertical direction with respect to the direction of gravity and is preferably acted upon by an acceleration force at least in the lower reversal position.
  • the force-applying device exerts on the bearing part at least in each of two reversal positions of the bearing part an acceleration force directed in the direction of the other reversing position. This allows compensation of the inertia forces in both reversal positions.
  • the force application device with the bearing part Braking and / or acceleration forces applied when the bearing part is located in an intermediate position arranged between the reversal positions.
  • a braking of the bearing part and / or an acceleration of the bearing part not only punctually in the reversal positions, but additionally or alternatively, also in the intermediate layers, so that a particularly strong reassurance of the bearing device is achieved.
  • the braking and / or acceleration forces "smoother" in the sense of temporally steady) can be introduced into the bearing part.
  • the Kraftbeetzschlagungs comprises an energy store, which in the course of the movement of the bearing part from a first reversal position in a second reversal position is rechargeable and dischargeable in the opposite direction.
  • the charging of the energy accumulator may in particular be accompanied by the exertion of braking forces on the bearing part.
  • the discharge of the energy store is associated in particular with the exertion of acceleration forces on the bearing part and thus with a support of the movement of the bearing part from the first reversal position to the second reversal position.
  • An energy store has the advantage that the kinetic energy of the bearing part can be used to generate the braking and / or acceleration forces, so that the rotary drive requires less energy for the rotary drive of the tool.
  • At least two energy stores are provided, which can be charged in opposite directions of movement of the bearing part and thus in each opposite directions of movement of the bearing part can be discharged.
  • the force application device comprises at least one cylinder / piston unit.
  • a cylinder / piston unit is particularly well suited for the integration of energy storage described above.
  • a cylinder / piston unit can also be used as a power transmission device, which derives the inertia forces of the bearing part in an environment of the bearing part to compensate for the inertia forces there, for example by means of energy storage, in particular in the form of spring elements, or by means of active force generating elements, which pneumatically, hydraulically, mechanically or electrically.
  • a particularly simple derivation of inertia forces in an environment of the bearing part results when the interior of a cylinder of a cylinder / piston unit is fluidly connected to an additional volume.
  • a supply device for pressurizing the interior of a cylinder and / or an additional volume connected to the interior is provided with a presettable, in particular variable, fluid pressure.
  • a supply device can be fed, for example, by means of compressed air.
  • the change in the fluid pressure can be used to set a spring rate of the force applying device and allows easy adjustment of the amount of braking and / or acceleration force.
  • the force application device it is possible to set up in such a way that it provides a predefinable maximum force for a specific rotational speed of the workpiece and a specific distance between the workpiece peripheral surface and the workpiece axis of the workpiece and for a certain mass of the bearing part and the pressing device and optionally the fine machining tool.
  • a control device for controlling the amount and / or the direction and / or the time course of a on the bearing part acting braking and / or acceleration force is provided. In this way, the device can be adapted quickly and easily to different workpiece geometries and production parameters.
  • a device for detecting the position of the bearing part is provided.
  • a control device described above is hereby a Particularly simple control of Kraftbeaufschlagungs unfold possible.
  • the linear guide is pivotally mounted, for example by means of a pivoting part relative to the frame.
  • the bearing part in a direction transverse to its reciprocating motion to understand the movements of the workpiece peripheral surface to be machined.
  • the linear guide is arranged on a carriage, which is mounted transversely to the guide axis of the linear guide in a direction transversely, in particular vertically, on the frame.
  • a carriage which is mounted transversely to the guide axis of the linear guide in a direction transversely, in particular vertically, on the frame.
  • Such a construction may also be referred to as a "cross slide”.
  • a further force application device is provided for the compensation of mass inertial forces, which arise due to a movement of the bearing part about a pivot axis or due to the movement of the bearing part in a direction transverse to the guide axis of the linear guide.
  • mass inertial forces arise due to a movement of the bearing part about a pivot axis or due to the movement of the bearing part in a direction transverse to the guide axis of the linear guide.
  • the device described above is suitable for bearing parts, which reciprocate substantially in the horizontal direction.
  • the above device but can also be used for bearing parts, which reciprocate in the vertical direction.
  • a compensation device which generates at least partially a vertically upwardly acting holding force, the amount of the weight of the pressing device, the Bearing parts and the finishing tool (for example, a finishing stone or run on a tape guide finishing tape) corresponds. In this way, a compensation of at least a part of the weight of said parts of the device is possible.
  • the holding force can be generated at least partially by the force application device. In this way, a compensation of at least a part of the weight of said parts of the device is possible.
  • the force application device generates at least part of the holding force
  • the finishing tool can be a polishing, lapping, grinding or roller burnishing tool.
  • the finishing tool is a finishing tool, which cooperates with the pressing device and has a wear-effective, abrasive active surface.
  • it is a finishing tool in the form of a finishing stone, which is attached to the pressing device.
  • the finishing tool can also be a finishing belt, which is preferably pressed against the workpiece circumferential surface by means of a pressing shell of the pressing device.
  • the device comprises an oscillation drive for acting on the workpiece with an oscillation movement parallel to the workpiece axis, so that a cross-cut structure characteristic of the finishing method can be generated by means of the device.
  • An embodiment of a device is used for fine machining, in particular for finish machining, of a workpiece 12.
  • the device 10 comprises a stationary frame 14 with a frame part 16 for connecting a bearing device 18 explained in more detail below to the frame 14.
  • the bearing device 18 serves to support a subsequently explained in more detail pressing device 20 on the frame 14.
  • the pressing device 20 presses a finishing tool in the form of a finishing tool 22 (see FIG. 2 ), for example in the form of a finishing tape, against a surface finish of the workpiece 12 to be machined.
  • the finishing tape is guided on a finishing tape guide 23, for example in the form of a deflection roller 25.
  • the device 10 comprises a rotary drive device 24 (cf. FIG. 1 ) for rotating the workpiece 12 about a workpiece axis 26 (see FIG FIG. 2 ).
  • the rotary drive device 24 comprises a headstock 28 and a tailstock 30.
  • the workpiece 12 is clamped between the headstock 28 and the tailstock 30.
  • the composite of rotary drive device 24 and workpiece 12 is reciprocally reciprocatable by means of an oscillation drive 32 along an oscillation axis 34 parallel to the workpiece axis 26.
  • the oscillation drive 32 comprises a carrier 36 for attachment of the headstock 28 and of the tailstock 30.
  • the carrier 36 is driven by means of a known per se and therefore not further explained drive means, for example in the form of an eccentric drive.
  • the workpiece 12 has a workpiece peripheral surface 38, which is offset eccentrically to the workpiece axis 26.
  • the workpiece circumferential surface 38 extends concentrically around an additional axis 40, which runs parallel and spaced from the workpiece axis 26.
  • the workpiece 12 is in particular a crankshaft.
  • the workpiece peripheral surface 38 is, in particular, the bearing surface of a crank bearing of the crankshaft.
  • the bearing device 18 comprises a pivoting part 44, which is held by means of a pivot bearing 46 about a pivot axis 48 pivotally mounted on the frame part 16.
  • the pivot axis 48 extends parallel to the workpiece axis 26.
  • the pivoting part 44 serves to arrange at least one linear guide 50, by means of which a bearing part 52 is mounted so as to be displaceable relative to the pivoting part 44 along a guide axis 54 of the linear guide 50.
  • the bearing part 52 extends substantially within a plane perpendicular to the workpiece axis 26 extending plane.
  • the bearing part 52 has an opening 56 which is penetrated by the pivot bearing 46.
  • the bearing part 52 has a workpiece end 12 facing the bearing end 58 for the arrangement of the pressing device 20.
  • the pressing device 20 comprises at least one pressing element 60, preferably two pressing elements 60, which is or are formed, for example, in the form of pliers arms 62.
  • the pliers arms 62 are pivotable about Andschreibschwenkachsen 64 relative to the bearing part 52.
  • the pressing pivot axes 64 extend parallel to the pivot axis 48 of the pivoting part 44.
  • the pliers arms 62 have at their end facing the workpiece 12 Andschreibabroughe 66, which are in particular cup-shaped, so that designed as a finishing belt finishing tool 22 along a Part circumference of the workpiece peripheral surface 38 can be pressed against them.
  • the pressing device 20 comprises a pressing drive 68, which acts on the pressing elements 60 with a pressing force.
  • the pressure drive 68 is designed, for example, in the form of a hydraulic unit 70, which acts on the pressure elements 60 with pressure forces 72.
  • the pressing drive 68 and the pressing portions 66 are arranged on sides of the pressing elements 60 facing away from each other with respect to the pressing pivot axes 64. In this way, pressing forces 72 facing away from one another can be redirected into mutually facing pressing forces 74.
  • the device 10 comprises a force acting between the pivot member 44 and the bearing part 52 force application device 76 (see FIG. 3 ).
  • the force application device 76 generates braking and acceleration forces which act on the bearing part 52 in parallel to the guide axes 54 of the linear guides 50.
  • the force application device 76 comprises at least one cylinder / piston unit 78, for example two cylinder / piston units 78 arranged parallel to one another.
  • the units 78 each comprise a piston 80, which is immovably connected to the bearing part 52 via a piston rod 82.
  • the pistons 80 are slidably mounted in fixedly connected to the pivot member 44 cylinders 84.
  • the pistons 80 divide the cylinders 84 into separate ones Interiors, namely a first interior space 86 and a second interior space 88.
  • the interior spaces 86, 88 are each filled with a pressurized gas and each form in opposite directions rechargeable and dischargeable energy storage 90th
  • FIG. 3 the workpiece 12 is shown in a starting position in which the workpiece peripheral surface 38 is located in a "12 o'clock position" relative to the workpiece axis 26.
  • This initial position of the workpiece 12 is hereinafter referred to as "0 °".
  • the rotary drive means 24 By rotation of the workpiece 12 about the workpiece axis 26 by means of the rotary drive means 24, for example in a clockwise direction, the workpiece 12, starting from the in FIG. 3 rotated position shown, for example, in a relative to the starting position rotated by 90 ° position (see FIG. 4 ).
  • the pressing device 20 moves downwards in the vertical direction and simultaneously away from the workpiece axis 26 in the horizontal direction in the course of the rotation of the workpiece 12.
  • the horizontal movement of the pressing device 20 causes a corresponding horizontal displacement of the bearing part 52 relative to the pivot member 44.
  • the vertical movement of the pressing device 20 causes a pivoting of the bearing part 52 and the pivot member 44 about the pivot axis 48th
  • the position of the piston 80 changes relative to the Cylinders 84.
  • the gas present in the second internal spaces 88 is compressed, so that during the movement of the bearing part 52 from the starting position (FIG. FIG. 3 ) in the in FIG. 4 shown liner increasingly higher braking forces act on the bearing part 52.
  • These braking forces are in the in FIG. 4 shown, fully compressed position of the second interior spaces 88 maximum.
  • Starting from this position causes a further rotation of the workpiece 12 about the workpiece axis 26, an enlargement of the second interior spaces 88, to a in FIG. 5 illustrated intermediate position ("180 °"), the interiors 86 and 88 are each the same size again.
  • the energy stores 90 are unloaded in the form of the second internal spaces 88, so that the bearing part 52 is acted upon by acceleration forces directed onto the workpiece 12.
  • FIG. 5 an intermediate layer of the bearing part 52 is shown.
  • FIG. 4 shows a first reversal position of the bearing part 52;
  • FIG. 6 shows a second reversal position of the bearing part 52nd
  • the bearing member 52 moves upon transfer of the workpiece 12 from the position "180 °” in the position "270 °” (see FIG. 6 ).
  • This movement of the bearing part 52 is accompanied by a compression of the first inner spaces 86, which exert increasingly stronger braking forces on the bearing part 52.
  • the concomitant charging of the first internal spaces 86 is used, in the transition of the workpiece from the position "270 °” back to the starting position "0 °" (ie upon transfer of the workpiece 12 from the in FIG. 6 in the in FIG. 3 shown rotational position) by discharging the / Energy storage 90 in the form of the first internal spaces 86 to exert acceleration forces on the bearing part 52.
  • a device 92 for detecting the position of the bearing part 52 relative to the pivoting part 44 is provided (see FIG. 7 ).
  • the device 92 has a first holding section 94 connected to the pivoting part 44 for holding a displacement sensor 95.
  • the device also has a second holding part 96 connected to the bearing part 52 for holding a measuring section 98.
  • the position sensor 95 serves to detect a movement of the measuring section 98 and thus to detect the position of the bearing part 52 relative to the pivot part 44. This position detection is advantageous for a control of the force application devices 76 described below.
  • a force-applying device 76 with cylinder / piston units 78 is likewise provided.
  • the energy storage devices 90 are designed in the form of mechanically effective spring elements 100.
  • the operation of this particularly simple constructed Kraftbeetzschlagungs worn 76 according to FIG. 8 corresponds to the operation of the above with reference to FIGS. 3 to 6 described Kraftbeetzschlagungs liked 76th
  • a force-applying device 76 with cylinder / piston units 78 is likewise provided.
  • the first interior spaces 86 and the second interior spaces 88 of the units 78 are each connected via lines 102 with additional volumes 104.
  • the additional volumes 104 serve to receive pressurized fluid, in particular gas, which as energy storage 90 is effective.
  • a spring rate of the force application device is adjustable, with higher pressures causing a steeper spring characteristic.
  • the interior spaces 86, 88, the lines 102 and the additional volumes are preferably filled with a liquid.
  • This arrangement has the advantage that the fluid can be used for power transmission in an area outside of the bearing part 52. Therefore, particularly compact cylinder / piston units 78 can be used.
  • the additional volumes 104 are produced by means of a closure element 106 in the form of a membrane ( FIG. 10 ) or in the form of a piston 108 (FIG. FIG. 11 ) completed.
  • the terminating elements 106, 108 are provided with energy stores 90 in the form of pneumatically active springs 110 (FIG. FIG. 10 ) and / or mechanically effective springs 100 ( FIG. 11 ).
  • the additional volumes 104 are alternately filled alternately or the spring elements 100, 110 alternately compressed, so that they are charged as energy storage 90 alternately and discharged.
  • the mode of operation of the force application device 76 corresponds to FIG FIG. 10 and Figure 11 of the operation of the above with reference to FIGS. 3 to 6 described Kraftbeetzungs liked 76th
  • a supply device 112 for supplying the interior spaces 86, 88 of the units 78 and possibly existing additional volumes 104 is shown with pressurized fluid.
  • the supply device 112 comprises a pressure source 114 (for example a compressed air supply), which communicates via proportional valves 116 and check valves 118 with the interior spaces 86, 88 and the optional additional volumes 104.
  • a pressure source 114 for example a compressed air supply
  • the proportional valves 116 are controlled, for example by means of electromagnets. For an increase in the pressure in the respective inner chambers 86, 88, an opening triggering of the proportional valves 116 is sufficient. If pressure is to be reduced in the inner chambers 86, 88, an additional valve 120 is actuated, which exerts a control pressure on the check valves 118, so that the pressure can be reduced in the interior spaces 86, 88 and optionally in the additional volumes 104.
  • FIG. 13 and 14 illustrated embodiments of utilities 112 communicates a pressure supply 114 via a 4/3-way valve 122 with the different internal spaces 86, 88 of the units 78.
  • Switch position corresponds to the operation of the force application device 76 of the operation of the above with reference to FIGS. 3 to 6
  • the pressure supply 114 can selectively be fluidly connected either to the first interior spaces 86 of the units 78 or to the second interior spaces 88 of the units 78, so that by means of Kraftbeetzleyungs adopted 76 generated braking and / or acceleration forces are selectively changed.
  • a control device 124 is provided, which is coupled to the device 92 for detecting the position of the bearing part 52 relative to the pivot part 44 and depending on the position of the bearing part 52, the 4/3-way valve 122 drives.
  • Such control allows, for example, in the FIGS. 15 to 18 To generate shown force curves.
  • the pressure supply 114 is connected to the second internal spaces 88 by switching the valve 122 at a workpiece position "90 °" and to the first internal spaces 86 at a workpiece position "270 °".
  • FIG. 15 shown force curve can be generated.
  • a connection of the pressure supply 114 with the second inner chambers 88 over a period of time 126 causes a force profile section 128, that is to say along the guide axis 54 of the linear guide 50, a leftward acceleration force.
  • a connection of the pressure supply 114 with the first Indoors 86 over a period of time 130 a force profile section 132, ie along the guide axis 54 of the linear guide 50 seen a rightward acceleration force.
  • the device according to the invention makes it possible to even out the drive torque provided for the rotary drive of the workpiece 12 by the rotary drive device 24.
  • FIG. 19 the time profiles of drive torques of the rotary drive device 24 are shown. These curves fluctuate sinusoidally between maximum and minimum values. In this case, a complete sinusoidal oscillation corresponds to a single revolution of a workpiece 12 about its workpiece axis 26. Without the use of a force application device 76, a drive torque curve 134 fluctuates considerably more than when using a force application device 76, by means of which a significantly more uniform, ideally even approximately constant drive torque curve 136 is achieved.

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  • Magnetic Bearings And Hydrostatic Bearings (AREA)

Claims (18)

  1. Dispositif (10) de finition d'une surface périphérique de pièce (38) qui est disposée de façon excentrique par rapport à un axe de pièce (26) d'une pièce (12), en particulier d'un coussinet de bielle d'un vilebrequin, avec un dispositif d'entraînement en rotation (24) pour entraîner ladite pièce (12) en rotation autour de l'axe de pièce (26), avec un dispositif de pression (20) destiné à plaquer un outil de finition contre ladite surface périphérique de pièce (38), et avec un dispositif de logement (18) destiné à loger ledit dispositif de pression (20) sur un bâti (14), caractérisé par le fait qu'un dispositif d'application de force (76) est prévu qui exerce des forces de freinage et/ou d'accélération sur une partie de logement (52) dudit dispositif de logement (18) laquelle, dû à la rotation de la pièce (12), exerce un mouvement de va-et-vient entre deux positions de renversement.
  2. Dispositif (10) selon la revendication 1, caractérisé par le fait que ledit dispositif d'application de force (76) exerce, au moins dans l'une des positions de renversement de la partie de logement (52), une force d'accélération sur la partie de logement, qui est dirigée en direction de l'autre position de renversement.
  3. Dispositif (10) selon l'une quelconque des revendications précédentes, caractérisé par le fait que ledit dispositif d'application de force (76) exerce, au moins dans respectivement les deux positions de renversement de la partie de logement (52), une force d'accélération sur la partie de logement (52), qui est dirigée en direction de respectivement l'autre position de renversement.
  4. Dispositif (10) selon l'une quelconque des revendications précédentes, caractérisé par le fait que ledit dispositif d'application de force (76) soumet la partie de logement (52) à des forces de freinage et/ou d'accélération lorsque ladite partie de logement (52) se trouve dans une position intermédiaire située entre les positions de reversement.
  5. Dispositif (10) selon l'une quelconque des revendications précédentes, caractérisé par le fait que ledit dispositif d'application de force (76) présente un accumulateur d'énergie (90) qui peut être chargé au cours du mouvement de ladite partie de logement (52) depuis une première position de renversement dans une deuxième position de renversement et peut être déchargé dans la direction opposée.
  6. Dispositif (10) selon la revendication 5, caractérisé par le fait que ledit accumulateur d'énergie (90) comprend des éléments formant ressort (100, 110) qui sont mécaniquement ou pneumatiquement efficaces.
  7. Dispositif (10) selon l'une quelconque des revendications précédentes, caractérisé par le fait que ledit dispositif d'application de force (76) comprend au moins une unité cylindre/piston (78).
  8. Dispositif (10) selon la revendication 7, caractérisé par le fait que le volume intérieur (86, 88) d'un cylindre (84) de ladite unité cylindre/piston (78) est en communication fluidique efficace avec un volume supplémentaire (104).
  9. Dispositif (10) selon la revendication 7 ou 8, caractérisé par un dispositif d'alimentation (112) pour soumettre le volume intérieur (86, 88) d'un cylindre (84) et/ou un volume supplémentaire (104) communiquant avec ledit volume intérieur (86, 88) à une pression de fluide préréglable, en particulier variable.
  10. Dispositif (10) selon l'une quelconque des revendications précédentes, caractérisé par un dispositif de commande (124) pour commander la valeur et/ou la direction et/ou l'allure temporelle des forces de freinage et/ou d'accélération agissant sur ladite partie de logement (52).
  11. Dispositif (10) selon l'une quelconque des revendications précédentes, caractérisé par un dispositif (92) de détection de la position de ladite partie de logement (52).
  12. Dispositif (10) selon l'une quelconque des revendications précédentes, caractérisé par le fait que ladite partie de logement (52) est guidée sur un guide linéaire (50).
  13. Dispositif (10) selon la revendication 12, caractérisé par le fait que ledit guide linéaire (50) est logé à pivotement, au moyen d'une partie de pivotement (44), par rapport au bâti (14).
  14. Dispositif (10) selon la revendication 12 ou 13, caractérisé par le fait que ledit guide linéaire (50) est disposé sur un chariot qui est logé sur ledit bâti (14) de manière à être déplaçable dans une direction transversale, en particulier perpendiculaire, à l'axe de guidage (54) du guide linéaire (50).
  15. Dispositif (10) selon la revendication 13 ou 14, caractérisé par le fait qu'un autre dispositif d'application de force est prévu pour compenser des forces d'inertie dues à la masse qui sont produites en raison d'un mouvement de la partie de logement (52) autour d'un axe de pivotement (48) et/ou en raison du mouvement de la partie de logement (52) dans une direction transversale à l'axe de guidage (54) du guide linéaire (50).
  16. Dispositif (10) selon l'une quelconque des revendications précédentes, caractérisé par le fait que ladite partie de logement (52) est déplaçable entre lesdites positions de renversement le long d'un axe vertical par rapport à la direction de gravité, et qu'un dispositif de compensation est prévu qui produit, au moins proportionnellement, une force de maintien qui agit verticalement vers le haut et qui, quant à la valeur, est égale au poids du dispositif de pression (20), de la partie de logement (52) et de l'outil de finition, et/ou que ledit dispositif d'application de force (76) produit une telle force de maintien au moins proportionnellement.
  17. Dispositif (10) selon l'une quelconque des revendications précédentes, caractérisé par le fait que ledit outil de finition est un outil de finissage (22) pour l'usinage de finissage de la surface périphérique de pièce (38).
  18. Dispositif (10) selon l'une quelconque des revendications précédentes, caractérisé par un mécanisme d'entraînement oscillant (32) destiné à soumettre ladite pièce (12) à un mouvement oscillatoire parallèle à l'axe de pièce (26).
EP12152051.4A 2012-01-23 2012-01-23 Dispositif de traitement précis d'une surface périphérique de pièce usinée agencée de manière excentrique par rapport à un axe de pièce usinée Revoked EP2617522B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP12152051.4A EP2617522B1 (fr) 2012-01-23 2012-01-23 Dispositif de traitement précis d'une surface périphérique de pièce usinée agencée de manière excentrique par rapport à un axe de pièce usinée
US13/737,585 US9114497B2 (en) 2012-01-23 2013-01-09 Device for fine-machining a peripheral workpiece surface located eccentrically in relation to a workpiece axis of a workpiece
KR1020130006152A KR101583395B1 (ko) 2012-01-23 2013-01-18 작업편의 작업편 축과 관련하여 편심으로 배치된 작업편 둘레면의 미세 가공을 위한 장치
CN201310021817.2A CN103213042B (zh) 2012-01-23 2013-01-21 用于对关于工件的工件轴线偏心设置的工件环周面精加工的设备
BR102013001761-2A BR102013001761B1 (pt) 2012-01-23 2013-01-23 Dispositivo para a usinagem fina da face circunferencial de uma peça trabalhada, excentricamente disposto em relação ao eixo da peça

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP12152051.4A EP2617522B1 (fr) 2012-01-23 2012-01-23 Dispositif de traitement précis d'une surface périphérique de pièce usinée agencée de manière excentrique par rapport à un axe de pièce usinée

Publications (2)

Publication Number Publication Date
EP2617522A1 EP2617522A1 (fr) 2013-07-24
EP2617522B1 true EP2617522B1 (fr) 2014-01-15

Family

ID=45655184

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12152051.4A Revoked EP2617522B1 (fr) 2012-01-23 2012-01-23 Dispositif de traitement précis d'une surface périphérique de pièce usinée agencée de manière excentrique par rapport à un axe de pièce usinée

Country Status (5)

Country Link
US (1) US9114497B2 (fr)
EP (1) EP2617522B1 (fr)
KR (1) KR101583395B1 (fr)
CN (1) CN103213042B (fr)
BR (1) BR102013001761B1 (fr)

Cited By (2)

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Publication number Priority date Publication date Assignee Title
EP3135433A2 (fr) 2015-08-27 2017-03-01 Supfina Grieshaber GmbH & Co. KG Unite de traitement de surfaces circonferentielles, machine-outil et procede de fonctionnement
DE102017109589A1 (de) * 2017-05-04 2018-11-08 Supfina Grieshaber Gmbh & Co. Kg Werkzeugmaschine zur Feinbearbeitung von Werkstückoberflächen

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EP2769806B1 (fr) 2013-02-21 2014-12-17 Supfina Grieshaber GmbH & Co. KG Dispositif et système de finition de surface d'une pièce à usiner en forme de vilebrequin ou d'arbre à came
EP2823934B1 (fr) 2013-07-09 2015-02-18 Supfina Grieshaber GmbH & Co. KG Dispositif d'usinage de précision d'une surface périphérique de pièce et procédé de fonctionnement du dispositif
WO2015124204A1 (fr) * 2014-02-21 2015-08-27 Supfina Grieshaber Gmbh & Co. Kg Dispositif de finition et procédé d'usinage de paliers d'arbre axiaux
CN104084865A (zh) * 2014-07-14 2014-10-08 中船动力有限公司 柴油机曲轴抛光装置及方法
CN104385099A (zh) * 2014-11-19 2015-03-04 辽宁五一八内燃机配件有限公司 曲轴轴颈研磨装置
US9987717B2 (en) 2016-02-24 2018-06-05 Supfina Grieshaber Gmbh & Co. Kg Finishing device
CN108381397B (zh) * 2018-03-03 2021-03-02 北京工业大学 一种针对砂带抛光机的接触压力检测系统
CN113858017B (zh) * 2021-09-02 2022-09-16 广东斯坦德流体系统有限公司 一种仿形转子抛光机

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Publication number Priority date Publication date Assignee Title
EP3135433A2 (fr) 2015-08-27 2017-03-01 Supfina Grieshaber GmbH & Co. KG Unite de traitement de surfaces circonferentielles, machine-outil et procede de fonctionnement
DE102015216357A1 (de) 2015-08-27 2017-03-02 Supfina Grieshaber Gmbh & Co. Kg Umfangsflächenbearbeitungseinheit, Werkzeugmaschine und Verfahren zum Betrieb
DE102017109589A1 (de) * 2017-05-04 2018-11-08 Supfina Grieshaber Gmbh & Co. Kg Werkzeugmaschine zur Feinbearbeitung von Werkstückoberflächen
DE102017109589B4 (de) 2017-05-04 2018-12-06 Supfina Grieshaber Gmbh & Co. Kg Werkzeugmaschine zur Feinbearbeitung von Werkstückoberflächen

Also Published As

Publication number Publication date
US9114497B2 (en) 2015-08-25
KR101583395B1 (ko) 2016-01-07
KR20130086172A (ko) 2013-07-31
US20130189909A1 (en) 2013-07-25
CN103213042A (zh) 2013-07-24
BR102013001761B1 (pt) 2022-08-09
EP2617522A1 (fr) 2013-07-24
BR102013001761A2 (pt) 2015-05-12
CN103213042B (zh) 2016-01-20

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