EP2750829B2 - Machine de finition de surfaces courbes de pièces à usiner - Google Patents

Machine de finition de surfaces courbes de pièces à usiner Download PDF

Info

Publication number
EP2750829B2
EP2750829B2 EP12751076.6A EP12751076A EP2750829B2 EP 2750829 B2 EP2750829 B2 EP 2750829B2 EP 12751076 A EP12751076 A EP 12751076A EP 2750829 B2 EP2750829 B2 EP 2750829B2
Authority
EP
European Patent Office
Prior art keywords
workpiece
finishing
rotary table
machining
spindle
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.)
Not-in-force
Application number
EP12751076.6A
Other languages
German (de)
English (en)
Other versions
EP2750829A1 (fr
EP2750829B1 (fr
Inventor
Phillip Utsch
Richard SCHÄFFNER
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.)
Nagel Maschinen und Werkzeugfabrik GmbH
Original Assignee
Nagel Maschinen und Werkzeugfabrik 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=46750343&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2750829(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Nagel Maschinen und Werkzeugfabrik GmbH filed Critical Nagel Maschinen und Werkzeugfabrik GmbH
Publication of EP2750829A1 publication Critical patent/EP2750829A1/fr
Publication of EP2750829B1 publication Critical patent/EP2750829B1/fr
Application granted granted Critical
Publication of EP2750829B2 publication Critical patent/EP2750829B2/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
    • B24B21/004—Machines or devices using grinding or polishing belts; Accessories therefor using abrasive rolled strips
    • 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
    • B24B27/00—Other grinding machines or devices
    • B24B27/0069—Other grinding machines or devices with means for feeding the work-pieces to the grinding tool, e.g. turntables, transfer means
    • 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
    • B24B35/00—Machines or devices designed for superfinishing surfaces on work, i.e. by means of abrading blocks reciprocating with high frequency
    • 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 finishing machine for finishing curved workpiece surfaces on workpieces according to the preamble of claim 1.
  • Finishing also known as superfinishing, is a cutting precision machining process with indefinite cutting edges. Finishing can be used to process workpiece surfaces of rotationally symmetrical or non-rotationally symmetrical workpiece sections on workpieces such as crankshafts, camshafts, gear shafts or other components for power and working machines in order to produce a desired surface fine structure.
  • a processing tool finishing stone or finishing tape
  • granular cutting agent is pressed onto the peripheral surface to be processed.
  • the workpiece is rotated about its workpiece axis.
  • a relative movement oscillating parallel to the workpiece axis is simultaneously generated between the workpiece and the machining tool resting on the peripheral surface.
  • a so-called cross-cut pattern can be generated, whereby the machined workpiece surfaces e.g. are particularly suitable as running surfaces for plain bearings or roller bearings or the like.
  • the workpiece section to be machined can be, for example, a main bearing or a pin bearing of a crankshaft or a camshaft bearing. Rotationally asymmetrical workpiece surfaces, such as the outer surfaces of cams can be finished. Finishing processes without an oscillating relative movement are also possible.
  • finishing is a thermally neutral processing method in which no soft skin is created, which is interspersed with microcracks or surface tension. Finishing is often used after a grinding process as the last machining process in a processing chain in order to remove the soft skin, to uncover the original structure, to increase the percentage of the roughened surface structure and to improve the component geometry.
  • processing tools with bound grain are used, so that washing operations and facilities for the disposal of lapping sludge can be dispensed with.
  • a finishing machine of the type considered in this application has at least one workpiece spindle, which can be rotated about a spindle axis by means of a spindle drive and has a workpiece holder for receiving a workpiece.
  • the workpiece holder is designed such that the workpiece held by the workpiece holder can be rotated about its workpiece axis by rotating the workpiece spindle.
  • At least one finishing unit which has a pressing device for pressing a machining tool with cutting means against a curved circumferential surface of the workpiece to be machined, with the drive device exerting a pressing force directed radially to the workpiece axis on the machining tool.
  • a finishing machine also has an oscillation device which can optionally be switched on or off and which can produce a relative movement between the workpiece and the machining tool that oscillates parallel to the workpiece axis.
  • a finishing belt is used as a processing tool in belt finishing.
  • a finishing band has a band-shaped flexible carrier, in which cutting grains are applied to the front side to be turned towards the workpiece with the aid of a binding agent.
  • One class of belt finishing processes uses a finite (not endless) finishing belt, the ends of which are each attached to a roll of tape.
  • the fresh, still unused finishing tape is held on a supply roll and, with the help of tape guiding devices, guided over the engagement area on the workpiece to a driven tape roll, which picks up the used finishing tape.
  • the tape feed is achieved via a drive of this tape roll, which pulls the tape through the entrance area.
  • the tape roll with the fresh finish tape acts as a tape brake and maintains the tape tension.
  • Devices and methods for carrying out these variants of the belt finishing are for example in the WO 2009/049868 A1 or the DE 199 25 077 A1 disclosed.
  • Another class of methods for finishing workpiece surfaces on workpieces also rotates the workpiece about its axis of rotation. Similar to a belt grinder, a continuously driven, endless finishing belt is used, which partially wraps around a workpiece surface to be machined (peripheral surface) of the workpiece during machining and lies flat against the workpiece in a range specified by the wrap angle. Examples of such processes are in the EP 1 514 640 B1 or the EP 1 514 643 B1 specified.
  • the finishing belt which runs over deflection rollers, should adapt flexibly to the geometry of the rotating workpiece and ensure high surface quality. As a rule, all-round machining tracks are created.
  • the DE 100 16 897 A1 describes a device for multiple machining of a workpiece in a clamping with several machining stations.
  • the device comprises a rotary table which is rotatable about a horizontal rotary table axis and has a plurality of workpiece spindles.
  • the workpieces are each clamped with three-jaw chucks.
  • a grinding device is provided on one of the processing stations. After grinding, the workpieces are moved to a downstream processing station for superfinishing.
  • the associated finish unit has a honing stone that can be set into an oscillating movement parallel to the axis of the machined workpieces. In superfinishing, the cutting movement is created by superimposing the axial oscillating movement of the finishing stone and the rotary movement of the workpiece around its axis.
  • the EP 1 518 643 A1 describes a finishing device for a microfinishing machine.
  • the finishing device is attached to one of two processing arms of processing tongs.
  • a support bracket is attached to the free end of the other processing arm, on which a bezel is integrally formed.
  • the steady rest is used to hold an insert in which two contact pieces are arranged which rest against the workpiece. Due to the centrifugal forces, the steady rest is only required when machining pin bearings on a crankshaft.
  • a finishing stone can also be provided as a processing tool in a finishing unit.
  • the object of the invention is to provide a finishing machine for finishing curved workpiece surfaces on workpieces, with which large numbers of workpieces can be subjected to finish machining with short cycle times and high machining quality.
  • the finishing machine should be usable for different workpiece geometries without loss of quality.
  • the invention provides a device with the features of claim 1.
  • a rotary table which can be rotated in cycles about a rotary table axis.
  • Several workpiece spindles are arranged on the rotary table in a predetermined angular division.
  • a workpiece picked up by a workpiece holder can be moved into a processing position on the finishing unit by rotating the rotary table and can be transported out of this processing position to a subsequent work station after finishing processing.
  • the rotary table preferably carries at least three workpiece spindles, for example three or four workpiece spindles, but possibly also more. This enables high productivity to be achieved. It is also possible to equip the rotary table with only two workpiece spindles.
  • the rotary table can preferably be indexed in each angular position or angular position belonging to a machining position by means of an indexing device. This enables exact workpiece positioning that does not change even under the influence of machining forces. This ensures high processing quality.
  • a clamping device for clamping the rotary table in the respective angular position can be provided.
  • a one-sided workpiece holder (support only on the workpiece holder of the workpiece spindle) is possible. This can be done by accordingly robustly dimensioned active clamping systems can be realized on the workpiece spindles, e.g. using a collet or a chuck.
  • One-sided workpiece clamping may be sufficient for axially relatively short and relatively thick workpieces compared to the length. In the case of longer and / or thinner and / or structurally more unstable workpieces, the transverse forces can lead to a loss of quality.
  • an active support of the workpiece against transverse forces is provided on at least one workpiece section lying at an axial distance from the workpiece holder, or a corresponding device.
  • Some embodiments have a counter-bearing device, which acts on the workpiece at an axial distance from the workpiece holder, for fixing the workpiece in a machining position aligned coaxially to the spindle axis of the workpiece spindle when the workpiece spindle is in a machining position belonging to a machining station.
  • the workpiece can e.g. with its axial ends between centering peaks.
  • a tailstock device with at least one tailstock unit is provided for this purpose, which has a tailstock spindle that can be rotated about a tailstock spindle axis and preferably also moved parallel to the tailstock spindle axis.
  • Two, three or more tailstock spindles can be provided.
  • a separate tailstock spindle can be provided for each machining station provided for workpiece machining.
  • the tailstock spindles can be permanently installed. They are then withdrawn before the indexing of the rotary table and then advanced again before the start of the subsequent machining operation in order to clamp the workpieces axially.
  • one or more tailstock spindles are provided on a further rotary table, which can be rotated axially parallel or coaxially with the rotary table carrying the workpiece spindles.
  • first rotary table in addition to the rotary table carrying the workpiece spindles (first rotary table), another rotary table (second rotary table) is provided which can be rotated coaxially with the rotary table carrying the workpiece spindles and carries at least one counter bearing device in the form of a tailstock spindle.
  • second rotary table in addition to the rotary table carrying the workpiece spindles (first rotary table), another rotary table (second rotary table) is provided which can be rotated coaxially with the rotary table carrying the workpiece spindles and carries at least one counter bearing device in the form of a tailstock spindle.
  • a separate tailstock spindle is preferably provided on the further rotary table for each workpiece spindle of the first rotary table.
  • each of the two rotary tables is assigned its own rotary drive, the rotary drives (first and second rotary drives) being controllable independently of one another via the machine control. Synchronous rotation of the rotary tables is possible by synchronizing the rotary drives via the machine control.
  • This concept is also referred to in this application as a "twin drive", the advantages of which will be explained in connection with an exemplary embodiment.
  • the further (second) rotary table can be moved parallel to its axis of rotation in the direction of the (first) rotary table carrying the workpiece spindles or in the opposite direction. This makes it easy to adapt to workpieces of different lengths. This also makes it easier to change the workpiece.
  • a bezel or another support element can be provided as the counter-bearing device, which acts at a distance from the workpiece holder between the latter and the free workpiece end on a workpiece section suitable for support.
  • active support of the workpiece against transverse forces is achieved on at least one workpiece section lying at an axial distance from the workpiece holder in that a first finishing unit and at least one second finishing unit are provided on a processing station for finish machining, which finishing unit simultaneously processes the workpiece attack, the pressing forces acting radially to the workpiece axis of the first and second finishing units being aligned essentially symmetrically to the workpiece axis.
  • the pressure forces exerted by the finishing units compensate each other, so that machining stabilized against transverse forces is possible.
  • two diametrically opposed, essentially identical finishing units are provided on a processing station for finishing processing. A star-shaped arrangement of three or more finishing units is also possible.
  • a plurality of machining units assigned to the rotary table are provided for performing a machining operation on a workpiece picked up by a workpiece holder, at least one of the machining units being a finishing unit.
  • a loading unit can be provided at a work station (loading station) in order to load the rotary table or to remove the finished machined workpieces.
  • the finishing machine can have a single finishing unit.
  • multiple finishing units are provided, for example two, three or four finishing units that are operated by the same rotary table.
  • several different finishing operations can be carried out on the same workpiece in one setup.
  • processing stations there are several processing stations, each of which has a finishing unit and which are operated one after the other by the rotary table, e.g. two three or four finishing units. It is also possible for a processing station to have two or more finishing units. If necessary, they can simultaneously process the same workpiece in its machining position, that is, perform parallel machining on the same workpiece.
  • finishing machine denotes a finishing machine that is set up for finishing on the workpiece and has at least one finishing unit for this.
  • the finishing machine can be configured as a pure finishing machine that has two or more finishing units but no processing units that are set up for other processing methods.
  • a measuring unit can also be provided. It is also possible to combine several different processing methods on the finishing machine. Therefore, a finishing machine can have further processing units intended for other processing operations, e.g. a deburring unit and / or a plan finishing unit in order to carry out other machining operations on a workpiece in addition to one or more finishing operations.
  • a centering chuck or a collet can be provided for the spindle-side workpiece holder, which are actuated by means of a clamping drive.
  • a receptacle on the outer diameter by jaw chuck or a receptacle on the inner diameter of the workpiece by a mandrel e.g. a receptacle on the outer diameter by jaw chuck or a receptacle on the inner diameter of the workpiece by a mandrel.
  • the workpiece holder is designed as a passive plug-in holder, so that the workpiece holder does not have any clamping means which can be actuated by a clamping drive, because these are not required.
  • the workpiece is simply put on or plugged in and, if necessary, secured against twisting and / or falling, but not clamped for centering. This enables a particularly quick workpiece change.
  • At least one retaining spring and / or at least one spring-loaded retaining element can be provided on the workpiece holder in order to hold the workpiece which is placed on the workpiece holder or inserted into the workpiece holder in a frictional manner and to prevent it from falling.
  • the plug-in receptacle is preferably designed for a rotationally fixed receptacle of a workpiece, so that the spindle rotation can be transmitted to the workpiece without slippage.
  • the workpiece holder has a spring-loaded driver element which engages in a circumferential direction in a form-fitting manner when a workpiece is held in a recess. This on the one hand creates a passive anti-rotation device to secure the picked-up workpiece against rotation and on the other hand the workpiece can also be secured against falling by pressing on the spring-loaded driver element. Axial insertion or insertion of the workpiece or removal of the workpiece held thereby while overcoming the frictional engagement for the workpiece change is, however, readily possible.
  • the workpiece spindles do not have to be oriented to hold a workpiece or fixed in a certain rotational position.
  • the workpiece spindles are attached to the rotary table in such a way that the spindle axes run parallel to the rotary table axis. This enables a particularly inexpensive, compact design to be implemented.
  • the orientation of the rotary table or the rotary table axis can be adapted to the intended application.
  • the rotary table axis runs horizontally so that the rotary table stands. Then the workpieces can be clamped horizontally or horizontally.
  • a horizontal rotary table in which the rotary table axis runs vertically.
  • a relative movement oscillating parallel to the workpiece axis also occurs simultaneously with the workpiece rotation
  • a corresponding oscillation device is provided between the workpiece and the machining tool resting on the peripheral surface.
  • the oscillation device is preferably integrated in the finishing unit, so that no devices for generating an axial workpiece oscillation have to be implemented on the part of the workpiece holder or the workpiece spindles. In principle, however, this is also possible.
  • the schematic Fig. 1 shows a side view of a finishing machine 100 designed as a belt finishing machine in a direction parallel to the z-direction of the machine-fixed machine coordinate system MKS.
  • Fig. 2 a top view of the same finishing machine is shown from above in the direction of the y direction perpendicular to the z direction.
  • Fig. 3 shows an oblique perspective view of some essential components of the same belt finishing machine.
  • the belt finishing machine is set up for processing fixed and variable cam pieces for a valve train with cam changeover. Only the circumferential surfaces of the cams are finished, not the adjacent cylindrical bearing surfaces.
  • the finishing process is the last material-removing fine processing, i.e. a finishing process.
  • the finishing machine is arranged in the material flow behind an upstream grinding machine and in front of a downstream washing system.
  • the workpieces 200 to be machined are fed to the finishing machine in the illustration shown from the right via a horizontal transport device 205, automatically loaded into the finishing machine with the aid of a handling system and, after completion of a multi-stage processing (brush deburring and subsequent belt finishing), unloaded again and conveyed via the transport device 205 ,
  • the belt finishing machine is designed as a rotary transfer machine and allows short idle times for the workpiece change and thus a high workpiece throughput and short cycle times, so that economical processing with high processing quality is possible.
  • the finishing machine has a rotary table 110 which can be rotated in cycles about a horizontal rotary table axis 112 running parallel to the z-direction with the aid of a rotary drive, not shown.
  • the standing rotary table is rotatably supported in a vertical support element of the machine frame by means of suitable bearings and can be driven by means of an electromechanical rotary drive or an NC-controlled direct drive.
  • Each of the workpiece spindles can be rotated about a spindle axis 122, 132, 142 or 152 , wherein the spindle axes run parallel to one another and parallel to the rotary table axis 112 in the horizontal direction and have the same radial distance from the rotary table axis.
  • a separate spindle drive is provided for each workpiece spindle, so that the rotation of each workpiece spindle can be controlled independently of the rotations of other workpiece spindles.
  • Each of the workpiece spindles has a workpiece holder with which an individual workpiece can be held in such a way that a workpiece held by the workpiece holder can be rotated about its workpiece axis by rotating the workpiece spindle.
  • the workpiece spindles and the workpiece holders attached to them are each identical. Special features of the workpiece receptacles provided here will later be especially in connection with Fig. 4 Using the example of the workpiece holder 160 of the second workpiece spindle 130 explained in detail.
  • the rotary table "serves" four work stations arranged in the circumference of the rotary table.
  • a loading unit 210 for loading and unloading the workpiece holders is provided at the first work station.
  • the first workpiece spindle 120 is in the loading and unloading position in the working area of the loading unit 210.
  • a workpiece pre-processed by grinding is then gripped by the feed belt of the transport device and transported to the workpiece holder of the first workpiece spindle and attached there.
  • a rotation of the rotary table by 90 ° clockwise then transports the workpiece to be machined to the second work station, which has a brush deburring unit 220.
  • a deburring brush 222 which is rotatably supported at the end of a swivel arm, the outside of the rotating workpiece can be machined by brush deburring in order to remove any burrs that may still be present after grinding.
  • the second work station is therefore a machining station at which workpiece machining takes place.
  • a first finishing unit 230 This is constructed as a belt finishing unit and has two parallel belt transport devices, so that two workpiece sections axially offset from one another on the workpiece ( Cams) can be processed at the same time using belt finishes.
  • the first finishing unit is set up in the process for machining rotationally symmetrical peripheral surfaces on the so-called zero lift cams, which is explained here by way of example.
  • the rotary table is advanced through 90 °, so that the workpiece is finally transported to the fourth work station in the work area of a second finishing unit 240, with which the non-rotationally symmetrical peripheral surfaces of the adjusting cams of the workpiece are processed.
  • the second finishing unit is also designed as a twin belt device, so that two circumferentially offset adjusting cams can be machined at the same time by finishing.
  • a further rotation of the rotary table by 90 ° brings the workpiece, which has been finely machined in three successive machining operations by means of three machining stations approached one after the other, to the first work station, where it is removed from the workpiece holder with the aid of the loading unit 210 and conveyed for removal.
  • the rotary table In order to position the workpiece spindles or the workpieces exactly in a work station, the rotary table is indexed in the respective rotational positions or angular positions by means of an automatic indexing device and clamped by means of an automatic clamping device. It is released again before switching on. These devices are controlled by the machine control.
  • a finite (not endless) finishing belt is used for the belt finishing, the belt ends of which are each fastened to a belt roll.
  • the fresh, still unused finishing tape is held on a supply roll and, with the help of tape guiding devices, is guided over the engagement area on the workpiece (area of the pressure roller) to a driven tape roll, which picks up the used finishing tape.
  • the tape feed is achieved via a drive of this tape roll, which pulls the tape through the entrance area.
  • the tape roll with the fresh finish tape acts as a tape brake and maintains the tape tension.
  • the first finishing unit 230 has two finishing belts 232, 234 running parallel to one another, which simultaneously machine the circumferential surface of an adjusting cam of the workpiece 200.
  • the workpiece 200 is rotated about its workpiece axis 202 with the aid of the spindle drive of the third workpiece spindle 140.
  • the finish belts are pressed against the rotating peripheral surface of the workpiece with the aid of a pressure roller 236 with a pressure force acting radially to the workpiece axis.
  • the pressure roller consists of a hard elastic material with a low flexibility on its outer circumference, so that pressure force peaks can be avoided.
  • the pressure roller is set into a short-stroke oscillation movement parallel to the workpiece axis 202 with the aid of an integrated oscillation device (see double arrow).
  • the combination of the rotational movement of the workpiece and the superimposed oscillating movement of the processing tool (finishing belt) produces a cross-cut pattern on the machined peripheral surface, which is advantageous for the function of the cam surfaces.
  • These workpieces are preferably operated with a discontinuous belt feed so that the finish belt rests during processing and the cutting speed is generated exclusively by the rotary movement of the workpiece in combination with the superimposed axially oscillating relative movement between the workpiece and the finish belt.
  • a used finish belt section is replaced by a fresh finish belt section, in that the finish belt is advanced by a predetermined belt feed distance during a processing break with the finished belt removed.
  • through the continuous or discontinuous supply of fresh, unused finishing strip sections well reproducible processing results can be achieved even with large series of workpieces.
  • the second finishing unit 240 is constructed essentially identically.
  • the cycle times during processing should also be kept as short as possible, so that a workpiece change should also be carried out as quickly as possible.
  • a solution is implemented for the workpiece clamping, which on the one hand allows a quick workpiece change and on the other hand a coaxial clamping of the workpieces that is stable against lateral forces.
  • the workpiece holder is designed as a passive plug-in holder for the rotationally fixed holding of a workpiece.
  • passive workpiece holders do not require clamping means that can be actuated via a clamping drive for clamping the workpiece.
  • the workpiece is not clamped radially, but is simply placed more or less in the axial direction, held in a force-fitting manner against falling and secured against twisting. This enables the workpieces to be picked up and removed quickly.
  • a counter bearing device for fixing a workpiece received in a workpiece holder in a machining position aligned coaxially to the spindle axis of the workpiece spindle, the counter bearing device engaging the workpiece at an axial distance from the workpiece holder when the workpiece spindle is in a machining position belonging to the machining station.
  • the tailstock unit 300 is part of a tailstock device 350, which is attached to the machine bed with an axial distance in the z direction in front of the rotary table and the workpiece holders attached to its front.
  • the tailstock device 350 has three identically constructed tailstock units 300, 360, 370 and in each case one tailstock unit for each of the processing stations 220, 230 and 240 Fig. 3
  • the tailstock unit 300 is assigned to the brush unit, while the tailstock unit 360 is assigned to the first finishing unit and the tailstock unit 370 is assigned to the second finishing unit.
  • the tailstock unit 300 has a tailstock spindle 310 which is passive, i.e. without its own drive, can be rotated about a tailstock spindle axis 312 and can be moved parallel to the tailstock axis in the direction of the workpiece holder opposite or away from it by means of a feed drive.
  • the tailstock spindle axis is arranged in such a way that it coincides with the workpiece spindle axis of the workpiece spindle which is in the machining position on the brushing device, that is to say with the spindle axis 132 of the second workpiece spindle 130 in the example.
  • the spindle-side workpiece holder 160 is designed as a passive plug-in holder for the non-rotatable holder of the workpiece.
  • a front end section of the workpiece holder forms a mandrel section 162 with a cylindrical outer surface which has an outer diameter which is adapted to the inner diameter of the workpiece to be clamped (indicated by dashed lines) such that the mandrel section can be inserted axially into the workpiece with a clearance fit.
  • the workpiece is already largely coaxial to the spindle axis.
  • a conical centering section 164 adjoins the mandrel section 162 on the spindle side and has a diameter that becomes larger as the rotary table. A workpiece placed on the mandrel section is thereby centered with respect to the spindle axis 132.
  • Figure 4B shows a section running perpendicular to the spindle axis 132 through the mandrel section 162 and the elements contained therein of a passive anti-rotation device for securing a picked-up workpiece against rotation.
  • a driver element 166 is pivotally mounted about an axis of rotation extending parallel to the spindle axis and has a radially outwardly projecting latching lug 165 which, when the driver element is pivoted out, projects outwards through an elongated hole 167 on the circumference of the mandrel section.
  • a compression spring 168 is arranged in the interior of the mandrel section and biases the driver element into this disengaged position. The driver element can be pressed inwards against the force of the compression spring.
  • a workpiece If a workpiece is pushed onto the mandrel section essentially axially from the front, it is centered with respect to the spindle axis 182 when it is struck against the conical centering section 164.
  • the cam pieces provided here as a workpiece have on their inside an internal toothing for rotationally fixed coupling to axially adjacent components of the camshaft.
  • the catch 166 of the driver element engages in one of the tooth gaps, so that a positive connection is formed in the circumferential direction between the driver element and the workpiece, whereby this is secured against rotation relative to the mandrel section.
  • the compression spring presses the driver element against the inside of the workpiece, the spring force being so dimensioned that the workpiece is also secured against falling from the mandrel section by this frictional connection.
  • the axial plug connection between the workpiece holder and the workpiece can be released in a simple manner by axially pulling off the workpiece when changing the workpiece.
  • the opposite tailstock spindle has a conical centering section 364 at its end facing the workpiece holder, which engages in the workpiece when the tailstock spindle is fed axially, as a result of which the workpiece is centered with respect to the spindle axis 132.
  • the workpiece is in principle clamped axially between tips or between the conical centering sections 164 and 364 and is thereby stabilized at both ends against the radial machining forces acting during machining.
  • This type of workpiece clamping between tips in conjunction with a rotary table can of course not only be provided for the workpieces described here by way of example, but is also useful for other workpiece geometries, in particular for those workpieces that have a relatively long length compared to their diameter, that is to say protrude relatively far beyond a spindle-side workpiece holder.
  • This workpiece clamping between tips is also possible for massive workpieces, for example, in that the tailstock has a tip which engages in a central recess in the end face of the workpiece.
  • an inner cone could also be provided for clamping solid workpieces with cylindrical end sections.
  • the schematic Fig. 5 shows a side view of a finishing machine 500 designed as a belt finishing machine according to a second example in a direction parallel to the z direction of the machine-fixed machine coordinate system MKS.
  • the finishing machine is designed for the same workpieces (cam pieces) and is arranged in the material flow in a line behind an upstream grinding machine and in front of a downstream washing system.
  • the workpieces 200 to be machined are fed to the finishing machine in the illustration shown from the right via a horizontal transport device 605, loaded automatically into the finishing machine with the aid of a handling system (loading device 610) and unloaded again after completion of a belt finishing process and conveyed to the left.
  • a handling system loading device 610
  • Two finishing units 620, 630 acting on the workpiece at the same time are provided for strip finishing.
  • the finishing machine has a rotary table 510 which can be rotated in cycles about a horizontal rotary table axis 112 running parallel to the z direction with the aid of a rotary drive (not shown).
  • Two diametrically opposed workpiece spindles are arranged on the rotary table radially outside of the rotary table axis 512, namely a first workpiece spindle 520 rotatable about a first spindle axis 522 and a second workpiece spindle 530 rotatable about a second spindle axis 532.
  • the spindle axes are parallel to one another and parallel to the rotary table axis 512 in a horizontal direction Direction.
  • a separate spindle drive is provided for each workpiece spindle, so that the rotation of each workpiece spindle can be controlled independently of the rotations of the other workpiece spindle.
  • the workpiece spindles and the workpiece holders attached to them are each identical.
  • the workpiece holders are designed as collets, which are actuated by their own clamping drives and hold and center the clamped workpiece by clamping.
  • the rotary table "serves" two work stations arranged on the circumference of the rotary table.
  • the loading unit 610 for loading and unloading the workpiece receptacles is provided at the overhead first work station.
  • the first workpiece spindle 520 is in the loading and unloading position in the working area of the loading unit 610.
  • the loading takes place from the right, the removal to the left.
  • the processing station has two essentially identical finishing units 620, 630 which engage the workpiece from diametrically opposite sides.
  • the finishing units can each be moved horizontally parallel to the x-axis.
  • a linear axis in the z direction is also provided for the axial positioning of the finishing units on the workpiece.
  • Both the first finishing unit 620 and the second finishing unit 630 are constructed as a belt finishing unit and have two parallel belt transport devices, so that two workpiece sections (cams) axially offset from one another can be machined simultaneously by means of belt finishing.
  • the first finishing unit is set up for machining axially offset first cams, while the second finishing unit machines second cams axially offset from the first cams.
  • a finite (not endless) finishing belt is used for the belt finishing, the belt ends of which are each fastened to a belt roll. It works with slow continuous or discontinuous tape feed. In this regard, reference is made to the above description.
  • the rotary table is switched through 180 °. This rotation brings the finely machined workpiece back to the first work station, where it is removed from the workpiece holder with the aid of the loading unit 610 and conveyed for removal.
  • the workpieces are here only one-sided (in the workpiece holder) and not clamped between centers and there are no corresponding tailstock facilities. Nevertheless, even with high radial pressure forces during finishing, a workpiece rotation that is stabilized against lateral forces and coaxial to the workpiece spindle is ensured.
  • the arrangement of the finishing units is namely selected such that the pressure forces acting radially on the workpiece axis of the first and second finishing units are aligned essentially symmetrically to the workpiece axis. As a result, the pressure forces exerted by the finishing units during machining compensate one another, so that machining which is stabilized against lateral forces is possible.
  • Each finishing unit acts as a support or counter bearing for absorbing the transverse forces introduced by the other finishing unit.
  • a finishing machine 800 which in the example is set up for machining relatively long workpieces 805 in the form of crankshafts.
  • the processing devices include several finishing units, which can simultaneously machine both the main bearing and the pin bearing of the crankshaft by means of belt finishes on a crankshaft held in a processing position.
  • the workpiece clamping devices can simultaneously clamp four crankshafts between centers and move them cyclically to different workstations.
  • Two coaxially rotatable rotary tables are provided for workpiece clamping, one of which belongs to a headstock unit and has four separately driven workpiece spindles and the other belongs to a tailstock unit, which serves as a counter bearing device for fixing the workpieces in a machining position aligned coaxially to the spindle axis of the workpiece spindles.
  • the headstock unit includes a first rotary table 810, which can be rotated in cycles about its horizontal rotary table axis 812 with the aid of an electrical first rotary drive 814.
  • the first rotary table is mounted in a vertical support element, which is fixed in the axial direction on the machine bed 802 of the finishing machine.
  • On the first rotary table 810 four workpiece spindles are arranged radially outside the rotary table axis, of which only two workpiece spindles 820, 830 can be seen in the side view.
  • Each of the workpiece spindles has a rotary drive which can be controlled independently of the other rotary drives and which can rotate the workpiece spindle about the associated spindle axis 822, 832.
  • the four workpiece spindles integrated in the headstock rotary axis are each equipped with an axially sprung tip 824, 834 and drivers, which ensure that the clamped workpieces are gripped and taken in a positive manner when the respective workpiece spindle rotates in the circumferential direction.
  • the first rotary table 810 is rotated about its horizontal rotary table axis 812 and indexed four discrete positions belonging to four work stations of the finishing machine.
  • the upper workpiece spindle 820 is in the loading and unloading position in the working area of a loading unit, not shown.
  • a stationary pneumatic drive 860 acts as an actuation for pulling back the tip of the workpiece tip in the loading and unloading position.
  • a second rotary table 910 Viewed in the axial direction opposite the first rotary table 810, a second rotary table 910 is arranged, which is part of the tailstock unit.
  • the second rotary table can be rotated by means of an electrical second rotary drive 914 about its horizontal rotary table axis 912, which runs coaxially with the rotary axis or rotary table axis 812 of the first rotary table.
  • the first and the second rotary drive can be controlled independently of one another via the machine control. This can ensure a synchronous rotation of the rotary tables using control technology. This concept is also referred to here as "twin drive”.
  • the common axis of rotation forms the axis of symmetry of the arrangement.
  • the second rotary table 910 is axial for the conversion operation, i.e. parallel to the axis of symmetry of the arrangement, movable.
  • the rotary table is mounted in a vertical support element which is mounted on a slide 970 which is axially displaceably guided on axial guide rails and can be moved horizontally back and forth by means of an NC axis 975 with a ball screw drive.
  • the second rotary table 910 carries four identically constructed tailstock spindles in a 90 ° angle, of which only two tailstock spindles 920 and 930 are shown.
  • Each of the tailstock spindles has a passively rotatable, roller-bearing, spring-loaded tip 924, 934, so that a long workpiece can be clamped between the tips of the opposite workpiece spindle and the associated tailstock spindle.
  • the rotary table is indexed at four discrete positions according to the workstations of the finishing machine.
  • a stationary pneumatic drive 960 is provided for withdrawing the tip on the tailstock side.
  • a workpiece to be machined is clamped in the area of the loading and unloading position by first moving a free workpiece spindle and an associated free tailstock spindle into the working position belonging to the loading and unloading station.
  • the workpiece is then gripped by means of a gripper unit and held between the tips, which are retracted by the pneumatic drives against the force of the associated return springs.
  • the drives are deactivated so that the workpiece is clamped axially between tips under the force of the springs belonging to the tips.
  • the workpiece can then be moved into a first processing station and then possibly up to two further processing stations by synchronously rotating the two rotary tables 810, 910 by means of synchronized control of the first and second rotary drives, before it is conveyed back to the loading and unloading station.
  • Different directions of rotation are possible.
  • Different machining operations can be carried out on the workpiece in the machining stations.
  • the workpieces remain clamped between tips from clamping to subsequent clamping and can be rotated about their longitudinal axis at the respective work stations by means of the workpiece spindle.
  • the second rotary table 910 serving as a counter bearing contains the passive workpiece counter bearings (e.g. tip, steady rest) which are driven by the workpiece rotation induced on the opposite main drive side and the workpieces (in the case of an intermediate tip solution) by a constant clamping force (e.g. Spring force) in the other five degrees of freedom between the tips.
  • This clamping force can be released by an external actuation for workpiece removal (e.g. fixedly arranged at the loading / unloading station).
  • the rotary table Since the rotary table has a high rotational moment of inertia (Steiner portion of the mass moment of inertia) solely due to the eccentric distance of the workpieces and their receptacles from the rotary table rotation axis, it is provided in the twin drive that the second rotary table is not carried passively by the first rotary table 810, but instead has its own rotary drive (second rotary drive 914), which is advantageously a servo-controlled rotary drive (NC axis).
  • second rotary drive 914 which is advantageously a servo-controlled rotary drive (NC axis).
  • the arrangement allows maximum productivity even when machining axially long workpieces.
  • the transverse forces acting radially on the workpieces during machining are reliably absorbed by the workpiece clamping between coaxial tips.
  • finishing machines which have two finishing units set up as belt finishing units, in one case in addition to a deburring unit. It is also possible that one or more finishing units are equipped with a finishing stone as a processing tool. Like the example of Fig. 5 shows the finishing machine can also be designed as a pure finishing machine, in which all processing units are finishing units.
  • finishing unit In some embodiments, not illustrated, only a single finishing unit is provided in addition to a loading and unloading unit. More than two finishing units can also be provided, for example three or four finishing units. These can be set up for the same or different finishing operations. In the exemplary embodiments shown, all machining operations are carried out on the rotating workpiece, it not being important for the machining to fix the workpiece in a specific rotational position.
  • the workpiece spindles can therefore have a relatively simple structure without devices for setting and fixing a specific rotational position.
  • the rotary table equipped with workpiece spindles can be rotated about a horizontal rotary table axis in the exemplary embodiments.
  • a horizontal, lying rotary table which is rotatable about a vertical rotary table axis.
  • the axes of finishing units and possibly other processing units can also be oriented differently.
  • the workpiece spindles attached to the rotary table rotate parallel to the axis of the rotary table.
  • This application discloses, among other things, a workpiece holding device with two coaxially rotatable rotary tables, the first rotary table carrying the workpiece spindles (rotatable about a spindle axis by means of a spindle drive) and the opposite second rotary table having devices for counter-bearing of the workpieces.
  • these counter-bearing devices can be designed as tailstock spindles, but may also have other configurations.
  • Such a workpiece holding device can be used independently of the other features of the claimed invention also in processing machines without finishing units, in order to support workpieces, in particular relatively long workpieces, during machining against transverse forces which are exerted on the possibly rotating workpiece by a processing tool.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)

Claims (14)

  1. Machine de finition (100) pour le traitement de finition de surfaces courbes de pièces à usiner sur des pièces à usiner (200) avec :
    au moins une broche de pièce à usiner pouvant tourner autour d'un axe de broche à l'aide d'un entraînement de broche et comportant un logement de pièce à usiner pour loger une pièce à usiner de telle sorte que la pièce à usiner reçue par le logement de pièce à usiner peut tourner, par rotation de la broche de pièce à usiner, autour d'un axe de pièce à usiner ;
    au moins une unité de finition comportant un dispositif de pression pour presser un outil de traitement équipé d'un moyen de découpe au niveau d'une surface périphérique incurvée de la pièce à usiner avec une force de pression orientée dans le plan radial par rapport à l'axe de pièce à usiner ; et
    une table ronde (110) pouvant être tournée selon un certain tempo autour d'un axe de table ronde (112), plusieurs broches de pièce à usiner (120, 130, 140, 150) étant disposées au niveau de la table ronde avec un écart angulaire prédéfini et une pièce à usiner reçue par un logement de pièce à usiner pouvant être déplacée dans une position de traitement au niveau de l'unité de finition par rotation de la table ronde et pouvant être transportée à la fin du traitement de finition hors de cette position de traitement jusqu'à une station de travail suivante ;
    caractérisée par un dispositif de maintien actif de la pièce à usiner à l'encontre des forces transversales au niveau d'au moins une section de pièce à usiner reposant à une certaine distance axiale du logement de pièce à usiner,
    dans laquelle une table ronde (910) supplémentaire est prévue en sus de la table ronde (810) supportant les broches de pièce à usiner (820, 830), ladite table supplémentaire pouvant tourner dans le plan coaxial avec la table ronde supportant les broches de pièce à usiner et supportant au moins une broche de contrepoupée (920, 930),
    dans laquelle un entraînement en rotation (814, 914) propre est associé à chacune des deux tables rondes (810, 910), une rotation synchrone des tables rondes (810, 910) pouvant être atteinte par synchronisation d'entraînements en rotation via une commande de machine de la machine de finition.
  2. Machine de finition selon la revendication 1, caractérisée en ce que la table ronde peut être indexée dans chaque position angulaire appartenant à une position de traitement au moyen d'un dispositif d'indexation et/ou peut être serrée fixement au moyen d'un dispositif de serrage.
  3. Machine de finition selon la revendication 1 ou 2, caractérisée par un dispositif de contre-palier s'engrenant avec la pièce à usiner à une certaine distance axiale du logement de pièce à usiner pour fixer la pièce à usiner dans une position de traitement orientée dans le plan coaxial par rapport à l'axe de broche de la broche de pièce à usiner lorsque la broche de pièce à usiner se trouve dans une position de traitement appartenant à une station de traitement.
  4. Machine de finition selon l'une quelconque des revendications précédentes, la machine de finition étant conçue de telle sorte qu'une pièce à usiner peut être reçue, au niveau d'au moins une station de traitement, avec ses extrémités axiales entre les pointes agissant de façon à exercer un centrage.
  5. Machine de finition selon l'une quelconque des revendications précédentes, caractérisée en ce que dans la variante présentant la table ronde (910) supplémentaire, une broche de contrepoupée propre est prévue pour chaque broche de pièce à usiner.
  6. Machine de finition selon l'une quelconque des revendications précédentes, caractérisée en ce que dans la variante présentant la table ronde (910) supplémentaire, la table ronde (910) supplémentaire peut être avancée parallèlement à son axe de rotation (912), en direction de la table ronde (810) supportant les broches de pièce à usiner ou dans la direction contraire.
  7. Machine de finition selon l'une quelconque des revendications précédentes, caractérisée par plusieurs unités de traitement (220, 230, 240) associées à la table ronde pour mettre en œuvre des opérations de traitement au niveau d'une pièce à usiner reçue à travers un logement de pièce à usiner, au moins une des unités de traitement étant une unité de finition (230, 240), de préférence au moins une unité de traitement étant configurée pour une autre opération de traitement, notamment d'ébavurage.
  8. Machine de finition selon l'une quelconque des revendications précédentes, dans laquelle la machine de finition comporte plusieurs unités de finition (230, 240, 620, 630) commandées par la même table ronde (110), notamment précisément deux unités de finition (230, 240, 620, 630) disposées de préférence de telle sorte qu'elles étaient commandées les unes après les autres à partir de la table ronde.
  9. Machine de finition selon l'une quelconque des revendications précédentes, dans laquelle la station de traitement de la machine de finition comporte deux unités de finition (620, 630) conçues pour traiter simultanément la même pièce à usiner positionnée dans une position de traitement appartenant à la station de traitement et/ou dans laquelle une première unité de finition (620) et au moins une deuxième unité de finition (630) étant prévue au niveau d'une station de traitement pour le traitement de finition s'engrenant, en cas de traitement, simultanément avec la pièce à usiner de telle sorte que les forces de pression s'engrenant dans le plan radial par rapport à l'axe de pièce à usiner de la première et de la deuxième unité de finition sont orientées pour l'essentiel symétriquement à l'axe de pièce à usiner, deux unités de finition (620, 630) pour l'essentiel identiques de façon diamétralement opposée étant prévues de préférence au niveau d'une station de traitement, pour le traitement de finition.
  10. Machine de finition selon l'une quelconque des revendications précédentes, dans laquelle le logement de pièce à usiner (160) est réalisé sous la forme d'un logement d'enfichage passif, au moins un ressort de maintien et/ou au moins un élément de maintien (166) sollicité par ressort comportant de préférence le logement de pièce à usiner (160), pour maintenir par complémentarité de frottements la pièce à usiner enfichée sur le logement de pièce à usiner ou s'enfichant dans le logement de pièce à usiner et pour la protéger contre la chute.
  11. Machine de finition selon l'une quelconque des revendications précédentes, dans laquelle le logement de pièce à usiner est conçu pour un logement solidaire en rotation d'une pièce à usiner, le logement de pièce à usiner comportant de préférence un dispositif de sécurité antitorsion passif pour sécuriser contre la torsion une pièce à usiner reçue, le logement de pièce à usiner comportant de préférence un élément de doigt d'entraînement (166) sollicité s'engrenant par complémentarité de formes en cas de logement d'une pièce à usiner dans un évidement au niveau de la pièce à usiner dans la direction circonférentielle et/ou dans laquelle le logement de pièce à usiner (160) comporte une section de centrage (164) conique pour le centrage de la pièce à usiner par rapport à l'axe de broche (132).
  12. Machine de finition selon l'une quelconque des revendications précédentes, dans laquelle les broches de pièce à usiner (120, 130, 140, 150) sont placées au niveau de la table ronde (110) de telle sorte que les axes de broche (122, 132, 142, 152) s'étendent parallèlement à l'axe de table ronde (112).
  13. Machine de finition selon l'une quelconque des revendications précédentes, dans laquelle l'unité de finition (230, 240) comporte un dispositif d'oscillation pour produire un mouvement d'oscillation de l'outil de traitement parallèlement à l'axe de pièce à usiner.
  14. Machine de finition selon l'une quelconque des revendications précédentes, dans laquelle au moins une unité de finition (230, 240) est une unité de finition de bande.
EP12751076.6A 2011-08-31 2012-08-28 Machine de finition de surfaces courbes de pièces à usiner Not-in-force EP2750829B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011081918A DE102011081918A1 (de) 2011-08-31 2011-08-31 Finishmaschine zur Finishbearbeitung gekrümmter Werkstückoberflächen an Werkstücken
PCT/EP2012/066687 WO2013030194A1 (fr) 2011-08-31 2012-08-28 Machine de finition de surfaces courbes de pièces à usiner

Publications (3)

Publication Number Publication Date
EP2750829A1 EP2750829A1 (fr) 2014-07-09
EP2750829B1 EP2750829B1 (fr) 2016-04-20
EP2750829B2 true EP2750829B2 (fr) 2020-01-01

Family

ID=46750343

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12751076.6A Not-in-force EP2750829B2 (fr) 2011-08-31 2012-08-28 Machine de finition de surfaces courbes de pièces à usiner

Country Status (4)

Country Link
EP (1) EP2750829B2 (fr)
CN (1) CN104039503B (fr)
DE (1) DE102011081918A1 (fr)
WO (1) WO2013030194A1 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103753393A (zh) * 2014-01-28 2014-04-30 瓦房店金北轴承制造有限公司 一种轴承超精机消除支点印的润滑支点
CN104924183A (zh) * 2015-05-06 2015-09-23 广西北流市红日紫砂陶瓷厂 灯头磨边机
CN104907916A (zh) * 2015-05-29 2015-09-16 洛阳市西工区华科精密机械厂 一种外径超精机的传动机构
DE102015216357A1 (de) * 2015-08-27 2017-03-02 Supfina Grieshaber Gmbh & Co. Kg Umfangsflächenbearbeitungseinheit, Werkzeugmaschine und Verfahren zum Betrieb
DE102016103105A1 (de) * 2016-02-23 2017-08-24 Supfina Grieshaber Gmbh & Co. Kg Finishvorrichtung
CN107283273B (zh) * 2016-04-06 2023-08-01 天通日进精密技术有限公司 晶棒加工设备及用于该设备的主轴机构与晶棒加工方法
DE102016107965A1 (de) * 2016-04-29 2017-11-02 Supfina Grieshaber Gmbh & Co. Kg Bandfinishvorrichtung
DE102016116161A1 (de) * 2016-08-30 2018-03-01 Supfina Grieshaber Gmbh & Co. Kg Werkzeugmaschine und Verfahren zur finishenden Bearbeitung von Werkstücken
CN106625087B (zh) * 2016-10-18 2018-11-23 江南大学 一种多形变铸件修磨装置的打磨机构
CN107297666B (zh) * 2017-08-14 2023-08-08 上海新孚美变速箱技术服务有限公司 一种用于汽车无级变速箱再制造的锥形盘修复总成系统
DE102019124660B3 (de) * 2019-09-13 2021-01-28 Supfina Grieshaber Gmbh & Co. Kg Finishbearbeitungssystem und Verfahren zum Betrieb eines Finishbearbeitungssystems

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19607778C2 (de) † 1996-03-01 2001-10-11 Nagel Masch Werkzeug Vorrichtung zur Finish-Bearbeitung, insbesondere von Kurbel- oder Nockenwellen
EP1506839A1 (fr) † 2003-08-15 2005-02-16 Supfina Grieshaber GmbH & Co. KG Outil de finition
EP1741514A1 (fr) † 2005-07-07 2007-01-10 Supfina Grieshaber GmbH & Co. KG Dispositif pour meuler et/ou finir une pièce
DE102007051047A1 (de) † 2007-10-16 2009-04-23 Nagel Maschinen- Und Werkzeugfabrik Gmbh Andrückeinrichtung für Schneidmittel sowie Vorrichtung und Verfahren zur Finishbearbeitung von Umfangsflächen an zylindrischen Werkstückabschnitten
DE102010060471A1 (de) † 2010-10-07 2012-04-12 Thielenhaus Technologies Gmbh Maschine zur Finishbearbeitung von Werkstücken, insbesondere langen Werkstücken

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2772527A (en) * 1953-09-21 1956-12-04 Roy A Farnam Coupler for crank shaft grinder
JPS5343294A (en) * 1976-09-30 1978-04-19 Toyoda Mach Works Ltd Phase indexing device
DE19925077A1 (de) 1999-05-15 2000-11-23 Supfina Grieshaber Gmbh & Co Vorrichtung zum Bandfinishen von gekrümmten Werkstückoberflächen
DE10016897B4 (de) 2000-04-05 2004-05-13 Thielenhaus Technologies Gmbh Vorrichtung zum Bearbeiten von Werkstücken mit mindestens zwei Bearbeitungsstationen
DE10160280B4 (de) * 2001-12-07 2011-05-26 Thielenhaus Technologies Gmbh Vorrichtung zur mechanischen Oberflächenbearbeitung von Werkstücken
DE10342139B4 (de) 2003-09-12 2008-06-19 Thielenhaus Technologies Gmbh Verfahren zur Finishbearbeitung von Umfangsflächen an wellenförmigen Werkstücken
DE10342134B4 (de) 2003-09-12 2009-09-03 Thielenhaus Technologies Gmbh Verfahren und Vorrichtung zur Finishbearbeitung von Kurbel- und Nockenwellen
ATE447461T1 (de) * 2003-09-16 2009-11-15 Supfina Grieshaber Gmbh & Co Finishvorrichtung
US7785173B2 (en) * 2005-07-05 2010-08-31 Supfina Machine Co. Superfinishing machine and method
DE102007050482B4 (de) * 2007-10-19 2017-08-24 Thielenhaus Technologies Gmbh Verfahren und Vorrichtung zur Finishbearbeitung
CN201559073U (zh) * 2009-11-19 2010-08-25 天润曲轴股份有限公司 曲轴自动分度压紧装置
CN102069396A (zh) * 2009-11-23 2011-05-25 天润曲轴股份有限公司 一种滚压曲轴圆角快速装夹支架

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19607778C2 (de) † 1996-03-01 2001-10-11 Nagel Masch Werkzeug Vorrichtung zur Finish-Bearbeitung, insbesondere von Kurbel- oder Nockenwellen
EP1506839A1 (fr) † 2003-08-15 2005-02-16 Supfina Grieshaber GmbH & Co. KG Outil de finition
EP1741514A1 (fr) † 2005-07-07 2007-01-10 Supfina Grieshaber GmbH & Co. KG Dispositif pour meuler et/ou finir une pièce
DE102007051047A1 (de) † 2007-10-16 2009-04-23 Nagel Maschinen- Und Werkzeugfabrik Gmbh Andrückeinrichtung für Schneidmittel sowie Vorrichtung und Verfahren zur Finishbearbeitung von Umfangsflächen an zylindrischen Werkstückabschnitten
DE102010060471A1 (de) † 2010-10-07 2012-04-12 Thielenhaus Technologies Gmbh Maschine zur Finishbearbeitung von Werkstücken, insbesondere langen Werkstücken

Also Published As

Publication number Publication date
CN104039503B (zh) 2017-08-15
EP2750829A1 (fr) 2014-07-09
WO2013030194A1 (fr) 2013-03-07
DE102011081918A1 (de) 2013-02-28
CN104039503A (zh) 2014-09-10
EP2750829B1 (fr) 2016-04-20

Similar Documents

Publication Publication Date Title
EP2750829B2 (fr) Machine de finition de surfaces courbes de pièces à usiner
EP1418019B2 (fr) Machine-outil avec au moins deux tourettes revolver à outils, comprenant chacune un dispositif porte-pièce
DE112013000293T5 (de) Drehbearbeitungsmaschine und Drehbearbeitungsverfahren
EP1984145B1 (fr) Procede de meulage de pieces en forme de barreau, meuleuse permettant de mettre en oeuvre le procede et cellule double de meulage
DE102008009124B4 (de) Verfahren zum Schleifen von stabförmigen Werkstücken und Schleifmaschine
DE19753797C2 (de) Vorrichtung zum Schleifen von Werkstücken
DE102016117915B4 (de) Spindelmodul für eine Werkstückbearbeitungsvorrichtung
WO2012038064A1 (fr) Procédé et dispositif d'usinage de pièces allongées sans symétrie de révolution, sous la forme de pales de turbines
EP2162260A1 (fr) Procédé et dispositif de meulage de cames d'un arbre à cames
DE102015010942B4 (de) Verfahren und Vorrichtung zur Schleif- und Feinstbearbeitung
EP1330338A1 (fr) Machine polyvalente
DE10016897B4 (de) Vorrichtung zum Bearbeiten von Werkstücken mit mindestens zwei Bearbeitungsstationen
EP0967038B1 (fr) Dispositif d' usinage de pièces par enlèvement de matière
CH699901B1 (de) Vorrichtung zum spanabhebenden Bearbeiten von Werkstücken.
DE10307977C5 (de) Verfahren und Vorrichtung zur Bearbeitung von Ausgleichsgehäusen
DE102011118747B4 (de) Verfahren und Werkzeugmaschine zur Komplettbearbeitung wellenförmiger Werkstücke
EP3372321B1 (fr) Dispositif et procédé de formage
WO2004069472A1 (fr) Dispositif et procede de rectification commandee par ordinateur d'arbres a cames, de vilebrequins et d'elements similaires
DE102005015649B4 (de) Verfahren zum Drehen und Feinstbearbeiten eines Werkstückes und Vorrichtung zur Durchführung des Verfahrens
DE202006000290U1 (de) Universalschleifmaschine
DE19835868B4 (de) Vorrichtung aus vertikal angeordneten Drehmaschinen
DE102019124660B3 (de) Finishbearbeitungssystem und Verfahren zum Betrieb eines Finishbearbeitungssystems
EP2206569B1 (fr) Procédé de fabrication de plusieurs pièces usinées à partir d'une ébauche
DE112013000290B4 (de) Drehbearbeitungsmaschine
DE1966960A1 (de) Automatische mehrfachspindelstangenmaschine

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20140307

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DAX Request for extension of the european patent (deleted)
17Q First examination report despatched

Effective date: 20141223

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20151116

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 791865

Country of ref document: AT

Kind code of ref document: T

Effective date: 20160515

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502012006819

Country of ref document: DE

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20160420

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160720

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160420

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160420

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160420

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160420

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160420

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160822

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160420

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160721

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160420

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160420

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160420

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160831

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160420

REG Reference to a national code

Ref country code: DE

Ref legal event code: R026

Ref document number: 502012006819

Country of ref document: DE

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160420

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160420

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160420

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160420

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160420

PLAX Notice of opposition and request to file observation + time limit sent

Free format text: ORIGINAL CODE: EPIDOSNOBS2

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160420

26 Opposition filed

Opponent name: SUPFINA GRIESHABER GMBH & CO. KG

Effective date: 20170120

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160420

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20160828

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160831

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160831

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20170428

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160420

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PLBB Reply of patent proprietor to notice(s) of opposition received

Free format text: ORIGINAL CODE: EPIDOSNOBS3

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160831

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160828

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160828

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160828

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20120828

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160420

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160420

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160420

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160420

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160420

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 791865

Country of ref document: AT

Kind code of ref document: T

Effective date: 20170828

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160420

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160420

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170828

APBM Appeal reference recorded

Free format text: ORIGINAL CODE: EPIDOSNREFNO

APBP Date of receipt of notice of appeal recorded

Free format text: ORIGINAL CODE: EPIDOSNNOA2O

APAH Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOSCREFNO

APBM Appeal reference recorded

Free format text: ORIGINAL CODE: EPIDOSNREFNO

APBP Date of receipt of notice of appeal recorded

Free format text: ORIGINAL CODE: EPIDOSNNOA2O

APBU Appeal procedure closed

Free format text: ORIGINAL CODE: EPIDOSNNOA9O

PUAH Patent maintained in amended form

Free format text: ORIGINAL CODE: 0009272

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: PATENT MAINTAINED AS AMENDED

27A Patent maintained in amended form

Effective date: 20200101

AK Designated contracting states

Kind code of ref document: B2

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: DE

Ref legal event code: R102

Ref document number: 502012006819

Country of ref document: DE

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20220817

Year of fee payment: 11

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230523

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502012006819

Country of ref document: DE