EP2844429B1 - Finishverfahren und finishvorrichtung zur finishbearbeitung rotationssymmetrischer werkstückabschnitte - Google Patents

Finishverfahren und finishvorrichtung zur finishbearbeitung rotationssymmetrischer werkstückabschnitte Download PDF

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Publication number
EP2844429B1
EP2844429B1 EP13718186.3A EP13718186A EP2844429B1 EP 2844429 B1 EP2844429 B1 EP 2844429B1 EP 13718186 A EP13718186 A EP 13718186A EP 2844429 B1 EP2844429 B1 EP 2844429B1
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Prior art keywords
finishing
workpiece
tool
infeed
force signal
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EP13718186.3A
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German (de)
English (en)
French (fr)
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EP2844429A2 (de
Inventor
Philip UTSCH
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Nagel Maschinen und Werkzeugfabrik GmbH
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Nagel Maschinen und Werkzeugfabrik GmbH
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    • 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
    • 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

Definitions

  • the invention relates to a finishing method for finishing a rotationally symmetrical workpiece section on a workpiece according to the preamble of claim 1 and to a finishing device configured to carry out the method according to the preamble of claim 6.
  • 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 finishing tool finishing stone or finishing tape
  • granular cutting agent is pressed onto the peripheral surface to be machined.
  • 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 finishing tool resting on the peripheral surface.
  • a combination of the rotational movement of the workpiece and the superimposed oscillating movement can produce a so-called cross-section pattern, which makes the machined workpiece surfaces particularly suitable, for example, as running surfaces for slide bearings or roller bearings or the like.
  • the workpiece section can be, for example, a main bearing or a pin bearing of a crankshaft or a camshaft bearing.
  • 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 process chain 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 with regard to roundness and short-wave defects in the axial and circumferential directions.
  • Grinding is the last shaping machining operation.
  • the geometry of the grinding tool is known to the machine control system, so that the workpiece can be contoured by grinding in accordance with the tool guidance brought about by the machine control system.
  • a prerequisite for this shape is regular dressing or measuring of the grinding tools.
  • the grinding process is generally not able to achieve the surface properties that can be achieved by finishing.
  • the advantageous surface properties of finishing are achieved, for example, in belt finishing in that an abrasive finishing belt is pressed against the workpiece section to be machined by a pressing device with a suitably designed hard, soft and / or flexible tool mold insert with a defined pressing force (for example between 50 N and 500 N) becomes.
  • the pressing force is controlled, for example, by specifying the hydraulic pressure of a hydraulic actuator.
  • the resulting specific surface pressure between the finish belt and the workpiece surface (usually between 0.05 and 2 N / mm 2 ) the desired material removal and a fine surface structure are achieved.
  • the belt finish processing is force and dwell time controlled so that the process result is a function of the pressing force and the process time.
  • the resulting geometry of the processing point is essentially from the pre-processing, i.e. depending on the upstream grinding process.
  • the global geometric shape is retained in both the axial and the tangential orientation; only higher-order ripples in the tangential and axial directions can be reduced if necessary.
  • the grinding process must therefore be designed in such a way that at the end of the grinding process there are no form errors that cannot be eliminated by finishing, for example waviness of small orders, which are also referred to as polygons.
  • One way to avoid form errors during grinding and to maintain the final global concentricity required at the end of the grinding process is to limit the feed parameters during grinding to relatively low values. This usually means that a relatively long pre-processing time has to be accepted.
  • the DE 196 07 776 A1 describes a method and a device for finishing processing, with which crankshafts or camshafts in particular can be processed.
  • the workpiece uses finish jaws that are well encompassing and segments that are as rigid as possible.
  • the cutting means is provided in the form of an incompressible plastic band or applied directly to the segments.
  • the feed of the finish jaws is blocked against each other, so that long-wave inaccuracies in particular are avoided and the surface can be improved by "firing".
  • the blocking could also take place when a certain position is reached, for example by a part of the finish jaws or arms striking a stop.
  • the European patent application EP 1 329 289 A2 describes a method for finishing workpieces using a machining device which has a tool spindle for a machining tool and an NC-controlled feed device.
  • the workpiece-side pressing force of the processing tool is measured and the force measurement values are fed to the NC control, which determines the feed rate of the processing tool to the workpiece.
  • the finish machining takes place in a force-controlled operating mode in which the feed speed is controlled as a function of the pressing force acting on the machining tool.
  • the object of the invention is to provide a generic method for finish machining which enables cost optimization of the process chain grinding-finishing with at least constant final quality of the machined workpieces. It is a further object to provide a finishing device suitable for carrying out the method.
  • the invention provides a finishing method with the features of claim 1. Furthermore, a finishing device with the features of claim 6 is provided.
  • a force signal proportional to the pressing force is determined and a feed path of the finishing tool is controlled as a function of the force signal during at least one phase of the finishing method.
  • feed here designates a working movement of the finishing tool in the direction of the workpiece section to be machined or, when the direction of movement is reversed, a retraction movement to remove the finishing tool from the workpiece section.
  • a displacement control or a position control is provided for this movement in the claimed invention. This makes it possible to reduce the shape errors of minor orders in the circumferential direction by finishing the workpiece section to be machined.
  • the finish processing can not only be used to improve the microform resulting from the preprocessing stages, but also to improve the macroform, i.e. for shaping.
  • microform refers primarily to those shape deviations that can also be improved by conventional finishing processes, in particular the roundness, the short-wave or higher-wave shape defects and the roughness.
  • macro shape also refers to low-wave shape defects in the circumferential direction (polygons), which could not be improved conventionally by means of finishing.
  • the force signal is monitored during an infeed movement of the finishing tool and the infeed movement is stopped in a first position, a predeterminable one to the force signal reached the first threshold value, and the finishing processing is then continued with the delivery stopped in the first position. Until the first position is reached, the finishing tool is thus moved in the direction of the workpiece section to be machined. With this infeed movement, the force signal increases when the finishing tool is in contact with the workpiece section. This feed movement is stopped at a predetermined pressing force.
  • the force signal is monitored when the infeed is stopped in the first position and the infeed movement is continued when the force signal reaches a predeterminable second threshold value which is lower than the first threshold value.
  • the above-described machining with the feed stopped in the first position leads to a preferred material removal in the outermost regions, whereby the pressing force gradually decreases. If the second threshold value for the force signal is reached, the infeed is continued so that the pressing force increases again afterwards and further material removal can take place. Further material is then removed, preferably again in the areas further out, if such are still present.
  • the infeed movement is continued in such a way that the finishing tool is advanced to a second position by a predefined increment.
  • the pressure force and the force signal proportional to it increase again.
  • the second position is then generally held until the force signal reaches a predeterminable third threshold value, which can correspond to the second threshold value or can differ therefrom.
  • the step-by-step delivery of the finishing tool over certain path increments can be repeated one or more times until the desired macro shape is produced by finishing. This point in time can be detected, for example, by monitoring fluctuations in the force signal during the rotation of the workpiece. If the fluctuation range falls below a certain threshold value, The control automatically recognizes that non-roundness of the workpiece section within the tolerances has been eliminated.
  • the effective contours and the position of the finishing tool for controlling the finishing device are known at least in the final phase of finishing processing.
  • the finishing tool is approached to the tool section by a feed movement in the direction of the workpiece section, the force signal is monitored during the feed movement and one at the first workpiece contact, i.e. the first contact between Finishing tool and workpiece section, occurring jump in the force signal is detected and processed to control the infeed.
  • This evaluation of the force signal in the sense of a start-up detection detects the position of the first tool contact with the workpiece, so that the tool position relative to the workpiece is known to the controller from this point in time or from this tool position.
  • the subsequent phases of finish processing can be controlled depending on this referencing. It is thus possible to realize a shaping finish with belt finishing tools as well as with finishing stones without having to know the geometry of the finishing tool before machining.
  • the delivery of the pressing device or the finishing tool is regulated during at least one constant force phase in such a way that the pressing force remains essentially constant.
  • a force-controlled process can follow, for example, the incremental infeed described above to reduce out-of-roundness.
  • the position or the path of the finishing tool changes usually relatively uniform and relatively slow, so that uniform surface properties can be achieved over the entire circumference of the workpiece section.
  • a return movement of the finishing tool is automatically initiated when a predefinable return condition occurs. It is therefore delivered in the opposite direction.
  • the return movement can be initiated, for example, after a defined machining time or after a defined reduction in diameter on the machined workpiece section.
  • the invention also relates to a finishing device for finishing peripheral surfaces of essentially rotationally symmetrical workpiece sections on workpieces, which is set up to carry out, among other things, the finishing method according to the invention.
  • the finishing device has a rotating device for rotating the workpiece about a workpiece axis.
  • an oscillation device for generating an axially oscillating relative movement between the finishing tool and the workpiece parallel to the workpiece axis is also provided, which can preferably be optionally switched on or off.
  • at least one finishing unit is provided, which has at least one movably mounted finishing arm, which carries a pressing device for pressing a finishing tool with cutting means against a workpiece section to be machined.
  • a finishing arm drive unit coupled to the finishing arm is connected to a control device of the finishing device and can be controlled by the control device to generate a working movement of the finishing arm. The movement of the finishing arm causes the infeed movement of the finishing tool.
  • machine axis generally designates a movable device which can be moved in at least one mechanical degree of freedom by at least one drive. It can be, for example, a translatory machine axis or a rotary machine axis.
  • a device for generating a force signal proportional to the pressing force is provided.
  • the force signal can be determined, for example, by evaluating the motor current of the individual finishing arm drive unit.
  • the control device is configured to process the force signal and to control a feed path of the finishing tool as a function of the force signal. In this way, the feed axis can also be used in force-controlled operation by means of the finishing arm drive unit.
  • the finishing arm drive unit is an electromechanical drive unit, which is preferably equipped with an electric servo motor. Together with a servo controller, the servo motor forms a servo drive that enables the servo motor to be operated in a closed control loop.
  • the operation can in principle be torque-controlled, speed-controlled or position-controlled, the possibility of position-controlled operation being used above all in the described finishing method.
  • the disclosure also relates to a finishing unit which can be used to construct a finishing machine according to the invention and / or which is suitable for carrying out the finishing method described in this application.
  • a finishing unit which can be used to construct a finishing machine according to the invention and / or which is suitable for carrying out the finishing method described in this application.
  • new finishing machines can be built or existing conventional finishing machines of a suitable configuration (machine bed, workpiece holder, etc.) can be converted into finishing machines according to the invention.
  • the finishing unit has at least one movably mounted finishing arm, which carries a pressing device for pressing a finishing tool with cutting means against a workpiece section to be machined, a certain pressing force being able to be applied during pressing. Furthermore, there is a finish arm drive unit coupled to the finish arm, which can be connected to a control device of the finishing machine to be set up and can be controlled by the control device for generating working movements of the finish arm.
  • the finish arm drive unit is an electromechanical drive unit that is configured so that the finishing tool can be moved away from the finish arm drive unit. Furthermore, a device for generating a force signal proportional to the pressing force of the finishing tool is provided on the finishing unit. A connection to the drive unit, from which an electrical voltage proportional to the motor current can be tapped, may be sufficient for this.
  • a separate force sensor can possibly be provided, e.g. very close to the finishing tool in a pressure device.
  • the claimed invention can be used in belt finishing as well as in finishing with the help of hard finishing tools, for example in tapeless finishing with finishing stones.
  • Fig. 1 schematically shows a finishing device 100 set up as a belt finishing machine for finishing peripheral surfaces of essentially rotationally symmetrical workpiece sections on workpieces such as crankshafts or camshafts.
  • the belt finishing machine shown is set up for machining a workpiece 110 in the form of a crankshaft.
  • the machine bed 120 of the belt finishing machine is constructed as a 45 ° inclined bed and carries essential mechanical components of the finishing machine on the inclined upper side.
  • the workpiece 110 is received with a horizontal workpiece axis in a workpiece holding device.
  • a workpiece holding device This comprises a headstock 130 fixedly mounted on the machine bed and a tailstock 140 which can be moved horizontally in towing mode.
  • the workpiece is clamped between the tips of the headstock and the tailstock.
  • the headstock contains a rotary drive for rotating the workpiece about its workpiece axis and an oscillation drive for generating a workpiece movement that oscillates in a short stroke parallel to the workpiece axis.
  • These drive units are connected to a numerical control device 180. With the help of the components of the workpiece holding device, the workpiece can be rotated about its workpiece axis and at the same time set into an axially short-stroke motion with strokes of the order of a few millimeters.
  • the finishing device 100 has a plurality of finishing units 200, 300 arranged side by side, which are mounted on guide rails of the machine frame.
  • the finishing units which can also be called finish modules, are in the Figures 2 and 3 presented in detail.
  • the finishing units are each very narrow in order to be side by side at the same time to be able to machine horizontal rotationally symmetrical workpiece sections.
  • a plurality of first finishing units 200 are provided for machining the main bearings lying coaxially with the workpiece axis
  • a plurality of second finishing units 300 each lying in between for machining connecting rod bearings of the crankshaft lying eccentrically to the workpiece axis.
  • only two finishing units 200, 300 are shown; in fact, a customized finishing unit is provided for each workpiece section to be machined (main bearing or pin bearing).
  • Fig. 2 shows an oblique perspective view of a first finishing unit 200 which is set up for machining a workpiece section lying coaxially with the workpiece axis, that is to say for example a main bearing of the crankshaft.
  • Fig. 3 shows an embodiment of a second finishing unit 300, which is set up for processing a connecting rod bearing or pin bearing.
  • the finishing unit is pivotally mounted about a pivot axis 390 running parallel to the workpiece axis, so that the finishing unit can follow the eccentric movement of the pin bearing when the workpiece rotates.
  • Each of the finishing units has two processing arms (finishing arms or pressure arms) which are pivoted about mutually parallel pivot axes in such a way that their free ends can be pivoted in the direction of the workpiece to be machined or outwards away from the workpiece in the manner of a pair of pliers.
  • the first finishing unit 200 in Fig. 2 is shown in a configuration in which the finishing arms 210, 220 are pivoted outward to the open position.
  • Fig. 3 shows the finishing arms 310, 320 in a processing configuration in which the processing tongs are closed.
  • the pivoting movements of the finishing arms are not independent of each other, but are forcibly coupled via a mechanical device.
  • the detailed figure in shows an explanation of a possible implementation Fig. 3 that section of the base element 330 in which the pivot bearings for the finishing arms 310, 320 are attached.
  • the first finishing arm 310 can be pivoted about the horizontal pivot axis 312, while the second finishing arm 320 can be pivoted about the parallel pivot axis 322.
  • a first gearwheel segment 314, which can be pivoted with the finishing arm, is fixedly mounted on the first finishing arm 310.
  • a second gear segment 324 is mounted on the second finishing arm 320 and can be pivoted with the second finishing arm.
  • the teeth of the gearwheel segments engage in one another without play, so that a pivoting movement of the first finishing arm 310 inevitably brings about an opposite pivoting movement of the second finishing arm 320.
  • the first finishing arm 210 and the second finishing arm 220 of the finishing unit 200 are also mechanically positively coupled to one another by means of a corresponding construction.
  • the belt finishing device effects the material removal on the workpiece with the aid of a processing tool in the form of a finishing belt 340, which is shown in FIG Fig. 3 is shown in sections.
  • a finishing belt conveyor device not shown in detail, provides the finishing belt 340, which is drawn off from a supply roll in the direction of the entry side of the finishing unit and, after use, is guided from the exit side of the finishing unit in the exit direction to a take-up roll for used finishing band.
  • the finishing belt 340 comprises a largely incompressible, low-stretch polyester film, which is covered with bound granular cutting means on its front side 342 facing the workpiece.
  • finishing tapes can also be used, for example finishing tapes with cutting agent on a fabric base or finish tapes with cutting agent on a paper base.
  • All common cutting agents can be used, for example ceramic cutting grains made of aluminum oxide or silicon carbide, Diamond cutting grains or cutting grains made of cubic boron nitride or the like.
  • an interchangeable pressing device 315 and 325 is fastened to each of the finishing arms 310, 320 in the region of the free end on the side facing the workpiece, which is designed in each case for the finishing band 340, which is provided with cutting means, to be machined to the respective one Press the peripheral surface of the workpiece section so that the finish band is pressed onto the peripheral surface over a wrap angle of, for example, 120 ° to 150 ° and a pressing force provided for the machining process.
  • the finishing belt typically rests during the material removal processing, so that the cutting speed required for the material removal is generated exclusively by the rotational movement of the workpiece, possibly in combination with the superimposed axial oscillating movement.
  • a numerically controlled machine axis is provided in each of the finishing units, which enables path-controlled or position-controlled operation, so that the feed movement of the finishing arms or the finishing tool in the direction of the workpiece or away from it is carried out or position-controlled can.
  • the finishing unit 200 has an electromechanical finishing arm drive unit 250 which is connected to the control device 180.
  • the finishing arm drive unit has a servo motor mounted on the upper side of the base element 230, which acts via a ball screw drive directly on an upwardly protruding lever arm 219, which is attached to the first finishing arm 210 and can be pivoted therewith. If the servo motor is controlled in such a way that the spindle nut moves in the direction of the first finishing arm 210, one becomes Closing movement of the finishing arms generated. When the direction of rotation is reversed, the processing tongs are opened.
  • the finishing arm drive unit 350 connected to the control device 180 is located on the rear side of the base element 330 opposite the finishing arms 310, 320.
  • the spindle nut 352 of the ball screw drive pivots a gear element 356 pivotably mounted on the base element when the spindle 354 rotated by the drive moves in the axial direction , which is coupled via a rigid rod 358 to the lever arm 319 on the first finishing arm 310.
  • the pivotable second finishing units 300 are corresponding for the pin bearings Fig. 3 alternating with the non-pivotable first finishing units 200 according to FIG Fig. 2 arranged side by side for the main bearings.
  • the finishing arm drive units are alternately above the respective basic elements (in the finishing units for the main bearings) and on rear end of the basic elements (in the finishing units for the pin bearings). This makes it possible to use finishing arm drive units whose overall width is larger than the relatively narrow width of the basic elements of the finishing units. This means that commercially available servo drives of suitable power can be used, which enables a cost-effective design.
  • Each servo drive of this drive system can be controlled individually by the control device.
  • Devices are provided for detecting the motor current of the individual servo drives, the output signals of which can be processed in the control. Since the motor current varies when the finishing tools are pressed onto the workpiece surface in dependence on the generated pressing force, these output signals can be used as control signals proportional to the pressing force.
  • finishing device With the help of the finishing device, it is possible to carry out finishing processes in which a force signal proportional to the pressing force of the finishing tool is determined and the feed path of the finishing tool is controlled as a function of the force signal during at least one phase of the finishing process.
  • This makes it possible, among other things, to carry out a finishing process that enables global shape errors in the circumferential direction to be reduced in the circumferential direction on the workpiece sections to be machined, that is to say to carry out shaping processing within certain limits with the aid of the tape finish machining.
  • a band finish processing shows Fig. 4 a cross section through a substantially rotationally symmetrical workpiece section 410 of a workpiece, which may be, for example, a crankshaft or camshaft.
  • the workpiece section shown is a main bearing, which lies centrally to the workpiece axis 412.
  • the workpiece section has an approximately polygonal cross-sectional shape, which corresponds to a three-wave shape error, which is characterized in that the radius of the workpiece varies three times in the circumferential direction between a smallest radius R1 and a largest radius R2.
  • FIG. 4 the material elevations that occur locally on the circumference are shown hatched in relation to an ideally round shape (radius R 1 ).
  • Reference numeral 440 denotes the finish band, which is carried by a pressing device (not shown) with a C-shaped recess (tool shell) and is pressed with its front side 442 by means of this pressing device for material removal on the peripheral surface 414 of the workpiece section.
  • the pressing force F acts essentially radially to the axis of rotation 412 of the workpiece section.
  • the finishing process runs through four consecutive process phases I, II, III and IV.
  • the start-up phase ends at time t1.
  • time t1 i.e. immediately at the beginning of phase II, there is a first contact between the belt finishing tool and the workpiece. This results in a jump in the force signal at time t1.
  • the tool infeed (the infeed movement) is stopped when the force signal reaches a first threshold value F1 during this jump.
  • F1 a first threshold value
  • the belt finishing tool is therefore not further advanced, but instead holds the position reached, which is referred to here as the first position P1.
  • the workpiece rotation and, if applicable, the axial workpiece oscillation superimposed on it are not interrupted.
  • This first position P1 corresponds to a radial distance of the machining tool from the axis of rotation 412 which is larger than the smallest radius R1 and which is not or only slightly smaller than the larger radius R2.
  • the processing tool since, when the processing tool is stopped in the first position P1, it rests with a pressing force on the circumference of the workpiece section, the outer workpiece tips are removed on the circumferential surface in the region of the material elevations, since only there is a pressing force sufficient for the material removal. There is no substantial material removal in the areas between the workpiece tips with a smaller local radius. In phase II, the cut is interrupted.
  • the phase of the incremental infeed can be ended, for example, after a predetermined number of repetitions or depending on information recorded during operation (for example the fluctuation range of the force signal falls below the predetermined threshold value).
  • the material removal is ended when a predeterminable reversing condition occurs.
  • the retraction of the belt finishing tool can be initiated, for example, after a defined machining time or after a defined reduction in diameter.
  • the return movement is initiated at time t5 in a controlled manner via the dwell time.
  • the pressing force F drops practically instantaneously to zero and the material removal is finished.
  • a special potential based on the 4 and 5 Process management illustrated by way of example lies in the first-time possibility of improving shape errors of smaller orders in the circumferential direction.
  • advantages in sensitive, force-controlled process control compared to conventional force-controlled and dwell time-controlled process control can be expected.
  • the new type of finishing machine and the new type of finishing units enable, among other things, the cascaded position and force control described in the band finishing process. It is possible to determine the relative position of the temporary process intervention using the evaluation of the force signal, for example via motor current or an external force sensor. Measurement and evaluation of the process force during position-controlled strip finishing processing are possible.
  • the position-controlled process control in the band finish processing allows a so-called “sparking out” in the band finish processing to eliminate global geometrical maxima on the workpiece circumference. Further procedural possibilities result from the possibility of a step-by-step (incremental) delivery during the band finish processing, possibly in connection with a force-controlled band finish processing with constant process force through force control is also possible.
  • Corresponding process variants can be used if a finishing stone is used as the finishing tool instead of a finishing band.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
EP13718186.3A 2012-05-04 2013-04-22 Finishverfahren und finishvorrichtung zur finishbearbeitung rotationssymmetrischer werkstückabschnitte Active EP2844429B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012207448A DE102012207448A1 (de) 2012-05-04 2012-05-04 Finishverfahren und Finishvorrichtung zur Finishbearbeitung rotationssymmetrischer Werkstückabschnitte
PCT/EP2013/058327 WO2013164218A2 (de) 2012-05-04 2013-04-22 Finishverfahren und finishvorrichtung zur finishbearbeitung rotationssymmetrischer werkstückabschnitte

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EP2844429A2 EP2844429A2 (de) 2015-03-11
EP2844429B1 true EP2844429B1 (de) 2020-01-01

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EP (1) EP2844429B1 (zh)
CN (1) CN104684683A (zh)
DE (2) DE102012207448A1 (zh)
WO (1) WO2013164218A2 (zh)

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DE102014203018B4 (de) * 2014-02-19 2024-03-21 Supfina Grieshaber Gmbh & Co. Kg Finishbearbeitungsverfahren und Vorrichtung zur Finishbearbeitung
DE102014018541B4 (de) * 2014-12-12 2016-07-28 Hochschule Magdeburg-Stendal Verfahren zur Finishbearbeitung von Werkstückoberflächen
CN109765841A (zh) * 2019-01-09 2019-05-17 西北工业大学 在线监测数据与零件加工位置的时空映射方法

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DE102012207448A1 (de) 2013-11-07
WO2013164218A2 (de) 2013-11-07
EP2844429A2 (de) 2015-03-11
DE202013012083U1 (de) 2015-03-05
WO2013164218A3 (de) 2014-07-17

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