WO2009095299A1 - VERFAHREN ZUM SCHLEIFEN DER HAUPT- UND HUBLAGER EINER KURBELWELLE DURCH AUßENRUNDSCHLEIFEN UND VORRICHTUNG ZUR DURCHFÜHRUNG DES VERFAHRENS - Google Patents
VERFAHREN ZUM SCHLEIFEN DER HAUPT- UND HUBLAGER EINER KURBELWELLE DURCH AUßENRUNDSCHLEIFEN UND VORRICHTUNG ZUR DURCHFÜHRUNG DES VERFAHRENS Download PDFInfo
- Publication number
- WO2009095299A1 WO2009095299A1 PCT/EP2009/050321 EP2009050321W WO2009095299A1 WO 2009095299 A1 WO2009095299 A1 WO 2009095299A1 EP 2009050321 W EP2009050321 W EP 2009050321W WO 2009095299 A1 WO2009095299 A1 WO 2009095299A1
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- WO
- WIPO (PCT)
- Prior art keywords
- grinding
- crankshaft
- bearings
- main
- rotation
- Prior art date
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Classifications
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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
- 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
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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
- 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 method for grinding the main and stroke bearings of a crankshaft by external cylindrical grinding.
- crankshaft With the pre-grinding of the main bearing was started in this known method, so that the crankshaft is clamped in a well-defined axis of rotation, namely its determining geometric longitudinal axis for the grinding of the stroke bearings.
- This determining geometric longitudinal axis must be available as a reference axis for machining the stroke bearings.
- all main bearings as well as other areas of the crankshaft concentrically arranged relative to the main bearings must be aligned exactly with respect to diameter, roundness, concentricity and centricity according to the determining geometric longitudinal axis of the crankshaft. The same applies to the center line of the crank pin, which in turn is determining geometric longitudinal axis for the rod bearings.
- the existing geometric longitudinal axis is fixed by means of centering holes on the end faces of the crankshaft.
- the crankshaft is clamped between tips at their center holes and driven by a driving device for rotation.
- This type of clamping has the disadvantage that a certain axial pressure must be exerted on the crankshaft, whereby there is the danger of additional deformations, because the crankshaft bends under the effect of an axial pressure. Therefore, the attachment of one or more lunettes is required.
- the invention is therefore based on the object of improving the known methods for grinding the main and stroke bearings of crankshafts in such a way that the accuracy of the grinding result is further improved while still being economical.
- the method according to the invention for grinding the main and stroke bearings has the advantage that even in the first process stage all crank bearings of the crankshaft are ground to the finished dimension by CNC-controlled external cylindrical grinding.
- the strongest deformation of the crankshaft which results from the release of stresses, thus takes place right at the beginning of the grinding.
- the stresses in the crankshaft have then completely degraded, and there is no further significant delay more. Only then will be started with the grinding of the main bearings, with the greatest possibility of correction exists.
- the invention achieves this result in a surprising manner by refraining from turning the crankshaft when grinding the stroke bearings around the determining geometric longitudinal axis.
- this longitudinal axis is known and fixed by located on the front sides of the crankshaft center holes.
- the crankshaft is clamped on two non-ground bearing points which are spaced apart in the common longitudinal direction. Extension of the main camp lie. Clamping is achieved, for example, by tray chucks which comprise the two non-ground bearing points, in each case without exerting an axial pressure on the crankshaft.
- These two bearing points define an actual axis of rotation whose deviation from the determining geometric longitudinal axis of the crankshaft is known by measurement.
- the known deviation is taken into account when grinding the stroke bearings as a correction function in the computer of the CNC control of the grinding machine.
- the finished ground crank bearings then have an exact relation to main bearings of the crankshaft, which would be sharply ground according to the determining geometric longitudinal axis of the crankshaft.
- the blanks of the crankshaft are machined by machining, then measured in terms of diameter, roundness and centricity provided for the first clamping bearings and from the deviation of the measured nen values of the determining geometric longitudinal axis a correction function for the pendulum stroke grinding process the stroke bearing formed.
- a radially extending straight line originating from the determining geometric longitudinal axis is defined as the reference line for the angular position of the measured values and for this purpose a reference bore in a front side of the crankshaft is measured.
- the two outer main bearings come into question or other end-side cylindrical sections that lie in the same common longitudinal extent as the main bearings.
- the two possible bearing points of the crankshaft are advantageously mounted in shell chucks of a grinding machine and the crankshaft is thereby driven at its two ends for rotation.
- the drives at the two ends of the crankshaft usually workpiece headstock and tailstock - driven exactly synchronized by the machine control.
- the grinding of the rod bearings in the pendulum-stroke grinding process can be carried out with a single grinding wheel, which serves from pre-grinding to finish grinding and is used successively on the various crank bearings.
- a pendulum-lift grinding process in which several grinding wheels are used simultaneously is particularly economical.
- each stroke bearings the same phase with respect to the determining geometric longitudinal axis. Therefore, two stroke bearings can be ground simultaneously and with the same radial feed movement to the crankshaft.
- the two inner stroke bearings and then - after axial moving apart of the two grinding wheels - the two outer stroke bearings are ground first.
- the grinding of the main bearing can be carried out under CNC control in accordance with a further advantageous embodiment.
- the grinding of the main bearing takes place in the second clamping of the crankshaft, in which this is advantageously clamped between centering tips and driven at least at their werk Georgiaspindel- stock-side end by driving and driving means for rotation.
- the driving and drive devices are advantageously made of compensating chucks, the jaws automatically create the still unground grip and compensate for irregularities and deviations.
- Compensating chucks are based on the effect of a pneumatic or hydraulic pressure medium and are known. Due to the interaction of the centering points with the centering bores located on the crankshaft, it is then guaranteed in each case that in the second clamping, the crankshaft rotates exactly about its determining geometric longitudinal axis.
- crankshaft is clamped in the first stage of the process at two unground bearing points, which are at a distance from each other in the common longitudinal extension of the main bearings, without being clamped by centering.
- shell clamping chuck achieves a rigid clamping of the crankshaft, without having to exert an axial pressure on it.
- the cylindrical grinding of the main bearings in the second set-up is particularly economical with a multiple grinding wheel set, the grinding wheels are located on a common driven axle and have the same diameter. But it is also possible to carry out the second processing stage with a single grinding wheel, which is successively delivered to the individual main bearings.
- crankshaft in the second stage of the process support can be provided by means of one or more steady rest.
- the invention also relates to devices for carrying out the method according to the invention.
- the method according to the invention is not bound by the fact that it has to be carried out in a specific device.
- the delivered, only machined crankshaft blanks can be measured in a measuring station and then be brought by in-house transport to a first grinding machine in which the pendulum stroke loops of the lifting bearings takes place.
- a first grinding machine in which the pendulum stroke loops of the lifting bearings takes place.
- at another location may be another grinding machine, in which the finished only on the stroke bearings crankshaft is now ground at the main bearings.
- a particularly advantageous apparatus for carrying out the method according to the invention is specified in claim 14.
- a common sanding cell having first and second sanding stations economically enables the gathering of drive, control, and cooling and transporting equipment which must be present at both required sanding stations.
- the direct upstream of the measuring station is advantageous in this case.
- Figure 1 is the side view of a crankshaft and is used to explain the measurements that are required before grinding the crankshaft.
- FIG. 2 is an end view associated with FIG.
- FIG. 3 shows in the representation from above an example of a device for carrying out the method according to the invention.
- FIG. 4 shows in a partial longitudinal section a detail of the device according to FIG. 3 during grinding of the stroke bearings.
- FIG. 5 is an end view of a tray chuck from the illustration according to FIG. 4.
- FIG. 6 shows the longitudinal section corresponding to FIG. 5 through a tray chuck.
- Figure 7 is a representation of the conditions during the subsequent grinding of the main bearings.
- FIG. 8 clarifies details of the compensation chuck required in the grinding process according to FIG.
- FIG. 1 shows a side view of a crankshaft 1. It has, as usual, cheeks 2, inner main bearing 3 and outer main bearing 4 and 5 stroke bearing. At one end of the crankshaft 1 there is a flange 6 and at the other end a pin 7.
- the crankshaft 1 has a determining geometric longitudinal axis 10 which forms the theoretical center line of the crankshaft 1. In this determining geometric longitudinal axis 10 are also the centering holes 8 and 9, which are present when starting with the measurement of the crankshaft blank.
- the cast or forged crankshaft 1 made of steel or cast materials is first machined, that is to say processed, in particular, by turning, drilling or rotary milling.
- the bearings that should serve for the first clamping during grinding usually not exactly in the determining geometric longitudinal axis 10, which is defined by the centering holes 8 and 9.
- a clamping on the outer main bearings 4 is provided. These are therefore used as measuring points 11, 12, at which diameter, roundness and centricity are measured. The measured values are recorded and stored at each measuring point 1 1, 12 as a function of the circumferential angle.
- crankshaft 1 is measured individually. Measurement and storage takes place in a measuring station 13, which can be located directly next to a grinding machine, cf. Figure 3. The measured values are then transferred directly to the computer of the grinding machine. But it is also possible to carry out the measurement separately from the grinding machine. In this case, the crankshaft 1 is added to a storage medium during in-house transport, which contains the measurement protocol.
- the radial position of the center of the determining geometric longitudinal axis 10 must be known, but it must also the output rotational position of the crankshaft to be ground. 1 , ie the zero position of the circumferential angle are determined.
- a reference bore 16 in the end face of the flange 6 is measured. There- with the crankshaft 1 can be fed and clamped in a pre-oriented rotational position of the grinding machine. The arrangement of the reference bore 16 is shown in FIG.
- the reference bore 16 is provided in addition to mounting holes 18 provided in the flange 6.
- FIG. 2 can give an impression of how diameter, roundness, concentricity and centricity are measured and stored point by point for different circumferential angles at the measuring points 11 and 12.
- FIG. 3 shows the exemplary arrangement of a device for carrying out the method according to the invention. Since the details of the grinding machines used in this case are familiar to the expert, is sufficient at this point a schematic overview drawing.
- the measuring station 13 is located directly next to a grinding cell 21, which comprises a first grinding station 22 and a second grinding station 23.
- the two grinding stations 22, 23 are arranged on a common machine bed 24.
- the machine bed comprises a machine table 25 (which can also be displaceably arranged in the direction of the common longitudinal axis 32). In the common longitudinal axis 32 and the axial direction 19 of the crankshaft, if this is located in the measuring station 13 runs.
- To the first grinding station 22 includes a workpiece headstock 26 and a tailstock 27, both of which are driven synchronously synchronously.
- a crankshaft 1 is clamped between the workpiece headstock 26 and the tailstock 27.
- To the second grinding station 23 also includes a workpiece headstock 36 and a tailstock 37, between which a crankshaft 1 is clamped and driven for rotation.
- a cross slide 38 belonging to the second grinding station 23 carries on a common driven axle 39 a multiple grinding wheel set with grinding wheels 40, which are delivered together when grinding the main bearings 3, 4 against the main bearings 3, 4.
- 41 denotes the drive motors for the feed axis of the cross slides 28, 38 and 42 covers which keep the grinding chips away from the sliding guides of the grinding stations 22, 23.
- the clamping and driving devices of the two workpiece headstocks 26, 36 and the two tailstocks 27, 37 are in the already mentioned common longitudinal axis 32.
- the longitudinal axis 32 is also the axis of rotation (C-axis) of the crankshafts 1 during grinding.
- the two cross slides 28, 38 are movable in the direction of the axis 34, that is parallel to the common longitudinal axis 32, and also the grinding headstock is perpendicular thereto in the direction of the axis 33 (X-axis) movable.
- the grinding wheels 31, 40 are delivered against the crankshafts 1 during grinding.
- the workpiece headstock 26 and the tailstock 27 of the first grinding station 22 are equipped with tray chucks 43.
- the crankshaft, first machined and measured is clamped in cup chucks 43, it does not rotate about its defining geometric longitudinal axis when the workpiece headstock 26 and tailstock 27 are driven, but about an axis of rotation 51 defined by the outer main bearings 4 from which the crankshaft 1 has been measured.
- the shell chucks 43 adapt to the two dominant outer main bearings 4. This will be explained in more detail with reference to Figures 4 to 6.
- FIG. 5 is an enlarged view corresponding to the section line AA in FIG. 4.
- FIG. 5 shows the end view of the workpiece headstock 26 with details of the shell chuck 43.
- FIG. 6 is the longitudinal section associated with FIG. 5 and thus an enlarged partial view from FIG Because of the enlarged representation, the flange-side end of the crankshaft 4 could be represented with further details, as can be seen from FIGS.
- the essential features of the shell chuck 43 are a support cup 44 and two pivotal jaws 47.
- the support cup 44 and the pivotal jaws 47 are all connected to a rotating part of the workpiece headstock 26.
- the support shell 44 has two projections 45 on which the crankshaft 1 rests with its outer main bearing 4.
- the two pivotable clamping jaws 47 are provided, which also bear with projections 47 a against the outer main bearing 4 of the crankshaft 1.
- With 50 lying in the radial plane pivoting direction of the pivotal clamping jaws 47 is indicated. Only for easier understanding of the function is shown in Figure 5, the left pivoting jaws 47 in its raised position and the right pivoting jaws 47 in its clamping position. In the clamped state, there is thus a clamping of the crankshafts 1 at four separate circumferential regions of relatively small circumferential extent, so that it is possible to speak of a four-point clamping.
- a movable Aushebest Zi 48 is provided, which facilitates the removal of the crankshaft 1 from the shell chucks 43.
- a sleeve 49 allows a longitudinal stop for the exact determination of the crankshaft 1 in its axial direction.
- crankshaft 1 rotates during rotation of the workpiece headstock 26 and the tailstock 27 not about their determining geometric longitudinal axis 10, but about the axis of rotation 51 of the shell chuck 43.
- the center belonging to an eccentrically determining, determining geometric longitudinal axis 10 during the rotation of the shell chuck 43 describes a circular path about the axis of rotation 51 of the shell chuck 43.
- FIG. 6 shows that the projections 45 of the support shell 44 are relatively narrow in the axial direction and, for example, have a curved contour 46 on their upper edge contacting the outer main bearing 4. This also applies to the formation of the shell chuck 43 on the side of the tailstock 27, which is formed in accordance with the shell chuck 43 on the workpiece headstock 26 in principle. Also, the protrusions 47a on the pivotal jaws 47 are formed similarly to the protrusions 45 of the shell chuck 43.
- crankshaft 1 is clamped in the first grinding station 22 at eight points which are of small circumferential extent and narrow in the axial direction and, for example, of a curved contour 46.
- the arrangement of these eight clamping regions with a subdivision into two spaced-apart groups causes the crankshaft 1 to assume smaller inclinations when rotating in the first grinding station when the deviation of the rotational axis 51 from the determining geometric longitudinal axis 10 in the two outer main bearings 4 is different. A lighter inclination can then take place without constraints or stresses occurring in the crankshaft 1.
- the clamping by means of shell chucks causes a rigid clamping and a secure rotary drive of the crankshaft, without any axial pressure is exerted on them.
- crankshaft 1 The between the centering tips 52, 53 clamped crankshaft 1 is driven by a drive with compensation chuck for rotation.
- a drive with compensation chuck for rotation An example of such a rotary drive is shown in FIG 8.
- housing parts 54a to 54e of the workpiece headstock 36 and optionally the tailstock 37 axially freely movable actuating piston 55 is provided which act on pivotally mounted angle lever 56 on radially movable radial slide 57.
- the radial slide 57 are screwed with clamping jaws 58, which act on a peripheral surface of the crankshaft 1.
- the peripheral surface may be located, for example, on a flange 6 or pin 7.
- first the crankshaft 1 must be received by the centering tips 52, 53 of the workpiece headstock 36 and the tailstock 37.
- the rotational axis of the workpiece headstock 36 and the tailstock 37 is therefore identical in the second grinding station 23 with the determining geometric longitudinal axis 10 of the crankshaft 1, as determined by the centering holes 8 and 9.
- crankshaft 1 and also the spatial direction of the workpiece headstock or tailstock in the figures 7 and 8 partially differs from the representation in the preceding figures; but this does not affect the explanation of the principle.
- the flow direction 20 of the crankshafts 1 is shown in FIG.
- the loading and unloading of the measuring station 13 and the grinding cell 21 takes place with a loading portal.
- the crankshafts 1 are thus introduced from the outside into the measuring station 13 and, after completion of the measuring process, first transferred to the first grinding station 22, in which the stroke bearings 5 are finish ground. Thereafter, the transport to the second grinding station 23, in which the main bearings 3, 4 of the crankshaft 1 are finished ground. Subsequently, the finished ground crankshafts 1 are unloaded again with the same loading portal from the grinding cell 21 to the outside.
- crankshaft 1 of the measuring station 13 If a crankshaft 1 of the measuring station 13 is supplied, it is only machined, with the main and lifting bearings 3, 4, 5 pre-processed and required holes are introduced. Furthermore, even the centering holes 8 and 9 are present, which define the defining geometric longitudinal axis 10 on the crankshaft 1 and mark. The inner and outer main bearings 3, 4 are still defective in this state of the crankshaft in terms of the diameter, the roundness and the centricity by the preparation.
- the crankshaft 1 is clamped in areas in the common longitudinal extent of the main bearings 3, 4 in the tray chucks 43 of the workpiece headstock 26 and the tailstock 27.
- the clamping takes place in the two outer main bearings 4.
- the crankshaft 1 rotates about the axis of rotation 51, which is defined by the faulty contour of the two outer main bearings 4.
- the stroke bearings 5 of the crankshaft 1 are ground and finished in a continuous operation in the first grinding station 22.
- the deviation of the actual axis of rotation 51 from the determining geometric longitudinal axis 10 of the crankshaft 1 is taken into account in the computer of the first grinding station 22.
- the grinding takes place in the pendulum-stroke grinding process.
- the grinding of the rod bearings 5 results in a strict assignment to the determining geometric longitudinal axis 10 of the crankshaft 1.
- the finished ground crank bearings 5 then have an exact relation to main bearings 3 , 4 of the crankshaft 1, which would have been sharply ground according to the deterministic geometric longitudinal axis 10 of the crankshaft 1.
- crankshaft 1 is clamped in the first grinding station 22 on the outer main bearings 4.
- crankshaft and other main bearing 3 and also flange 6 and pin 7 can be used for measuring and clamping, because they are mounted centrally to the main bearings 3, 4.
- the grinding of a crankshaft 1 with four stroke bearings 5 is provided. In this design usually have two stroke bearings 5 the same phase with respect to the determining geometric longitudinal axis 10 of the crankshaft 1.
- the arrangement of the grinding wheels 30 in the first grinding station 22 shown in the exemplary embodiment is not mandatory. If required by the design of the crankshaft 1, the pin bearings 5 can be finished with a single grinding wheel individually and successively.
- the measurement of the stroke bearings 5 takes place during grinding by means of in-process measuring heads, wherein the diameters of the stroke bearings 5 to be ground are measured continuously during grinding.
- the diameter and roundness correction is recorded via the measuring head as a measured value on the pin bearing 5 to be ground and compared with the nominal value via the machine control.
- a dimensional correction in the direction of the axis 33 (X-axis) is carried out during the feed movement. It is also possible to carry out a correction movement of the second grinding spindle 30 as a function of the feed movement of the first grinding spindle 30.
- crankshaft 1 is then transferred by means of the loading portal in the second grinding station 23.
- the center holes 8 and 9 are used at the ends of the crankshaft 1, as shown in Figures 7 and 8.
- the main bearings 4 are still unpolished. Areas of the crankshaft 1, which lie in the common longitudinal extension of the main bearings 3, 4, are now used for the rotary drive.
- the clamping jaws 58 lie differently at the diameter of these areas of the Kur- belwelle.
- the rotation takes place strictly around the determining geometric longitudinal axis 10, which coincides with the axial direction of the two centering points 52 and 53.
- the crankshaft 1 is advantageously supported in the second grinding station 23 on at least one main bearing 3 with a centering steady rest. It is also possible to use several centering steady rests. Furthermore, the diameter is measured at several main bearings 3, 4, so that the crankshaft is ground to the desired nominal dimension by means of a so-called in-process measurement. The crankshaft 1 is thus processed at its main bearings 3, 4 until it is ground to finished size.
- the grinding of the stroke bearings 5 must be CNC controlled for the method according to the invention. But even for the grinding of the stroke bearings 3, 4, a CNC control is advantageous in any case.
- main bearings 3, 4 are also not mandatory. If required by the type of crankshaft or an existing grinding machine, the main bearings can also be finished individually and sequentially with a single grinding wheel.
- the main bearings 3, 4 also have the best possible concentricity values, since no further grinding takes place on the main and lifting bearings 3, 4, 5.
- the crankshaft is then removed from the grinding cell 21 in the flow direction 20.
- the system shown in the embodiment with a combination of measuring station 13 and grinding cell 21 is a particularly economical way, the inventive method to perform in mass production. However, if circumstances require it, the measuring and various grinding operations may also be performed at separate locations and on separate equipment or grinding machines.
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Abstract
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Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09705005.8A EP2234757B1 (de) | 2008-02-01 | 2009-01-13 | VERFAHREN ZUM SCHLEIFEN DER HAUPT- UND HUBLAGER EINER KURBELWELLE DURCH AUßENRUNDSCHLEIFEN UND VORRICHTUNG ZUR DURCHFÜHRUNG DES VERFAHRENS |
RU2010136695/02A RU2480320C2 (ru) | 2008-02-01 | 2009-01-13 | Способ шлифования коренных и шатунных подшипников коленчатого вала с помощью наружного круглого шлифования и устройство для осуществления способа |
JP2010544655A JP5473006B2 (ja) | 2008-02-01 | 2009-01-13 | 外部円筒研削によってクランクシャフトのメインベアリングおよびロッドベアリングを研削するための方法ならびにその方法を実行するための装置 |
KR20097024529A KR101487467B1 (ko) | 2008-02-01 | 2009-01-13 | 외부 원통 연삭에 의한 크랭크축의 메인 및 로드 베어링의 연삭 방법 및 이 방법을 수행하는 장치 |
ES09705005T ES2409385T3 (es) | 2008-02-01 | 2009-01-13 | Procedimiento para el rectificado de los cojinetes principales y de elevación de un cigüeñal mediante rectificado de cilindrado exterior y dispositivo para la realización del procedimiento |
CN2009800004974A CN101687301B (zh) | 2008-02-01 | 2009-01-13 | 通过外圆研磨来研磨曲轴的主轴承和连杆轴承的方法以及实施该方法的装置 |
US12/865,370 US8506357B2 (en) | 2008-02-01 | 2009-01-13 | Method for grinding the main and rod bearings of a crankshaft by external cylindrical grinding and apparatus for carrying out the method |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008007175.7 | 2008-02-01 | ||
DE102008007175A DE102008007175B4 (de) | 2008-02-01 | 2008-02-01 | Verfahren zum Schleifen der Haupt- und Hublager einer Kurbelwelle durch Außenrundschleifen und Vorrichtung zur Durchführung des Verfahrens |
Publications (1)
Publication Number | Publication Date |
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WO2009095299A1 true WO2009095299A1 (de) | 2009-08-06 |
Family
ID=40429755
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/EP2009/050321 WO2009095299A1 (de) | 2008-02-01 | 2009-01-13 | VERFAHREN ZUM SCHLEIFEN DER HAUPT- UND HUBLAGER EINER KURBELWELLE DURCH AUßENRUNDSCHLEIFEN UND VORRICHTUNG ZUR DURCHFÜHRUNG DES VERFAHRENS |
Country Status (9)
Country | Link |
---|---|
US (1) | US8506357B2 (de) |
EP (1) | EP2234757B1 (de) |
JP (1) | JP5473006B2 (de) |
KR (1) | KR101487467B1 (de) |
CN (1) | CN101687301B (de) |
DE (1) | DE102008007175B4 (de) |
ES (1) | ES2409385T3 (de) |
RU (1) | RU2480320C2 (de) |
WO (1) | WO2009095299A1 (de) |
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CN108453609A (zh) * | 2018-02-07 | 2018-08-28 | 重庆市佳南工贸有限公司 | 一种曲轴抛光装置 |
CN109693152A (zh) * | 2017-10-20 | 2019-04-30 | 株式会社捷太格特 | 磨床和研磨方法 |
CN114425706A (zh) * | 2022-03-14 | 2022-05-03 | 浙江杰克智能装备有限公司 | 一种曲轴磨头架卡盘夹具 |
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DE102009051737B3 (de) * | 2009-11-03 | 2010-10-07 | Erwin Junker Maschinenfabrik Gmbh | Verfahren zum Schleifen der Haupt- und Hublager einer Kurbelwelle durch Aussenrundschleifen und Schleifmaschine zum Durchführen des Verfahrens |
JP5505099B2 (ja) * | 2010-06-04 | 2014-05-28 | 株式会社ジェイテクト | 複合研削盤による研削方法 |
GB201108845D0 (en) * | 2011-05-26 | 2011-07-06 | Cinetic Landis Ltd | Machine tools and methods of operating thereof |
DE102013225292B4 (de) * | 2013-12-09 | 2018-11-15 | Erwin Junker Maschinenfabrik Gmbh | Schleifmaschine zum schleifen von zentrischen und/oder exzentrischen lagerstellen an wellenteilen mit einer lünette zum abstützen der lagerstellen |
DE102014204807B4 (de) * | 2014-03-14 | 2016-12-15 | Erwin Junker Grinding Technology A.S. | Verfahren und Vorrichtung zum Schleifen von Großkurbelwellen |
CN107433430A (zh) * | 2017-09-27 | 2017-12-05 | 安徽海立精密铸造有限公司 | 一种曲轴免打磨加工工艺 |
US10639763B2 (en) * | 2017-11-14 | 2020-05-05 | Ford Motor Company | Method for journal finishing of crankshafts, camshafts, and journals |
CN108032188A (zh) * | 2017-12-12 | 2018-05-15 | 重庆市银钢通科技有限公司 | 一种凸轮轴粗磨夹具 |
CN113732323B (zh) * | 2021-09-02 | 2023-01-03 | 上汽通用五菱汽车股份有限公司 | 轴类工件的气封定位夹具、定位检测系统及方法 |
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2008
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-
2009
- 2009-01-13 ES ES09705005T patent/ES2409385T3/es active Active
- 2009-01-13 KR KR20097024529A patent/KR101487467B1/ko active IP Right Grant
- 2009-01-13 JP JP2010544655A patent/JP5473006B2/ja not_active Expired - Fee Related
- 2009-01-13 CN CN2009800004974A patent/CN101687301B/zh not_active Expired - Fee Related
- 2009-01-13 EP EP09705005.8A patent/EP2234757B1/de not_active Not-in-force
- 2009-01-13 RU RU2010136695/02A patent/RU2480320C2/ru not_active IP Right Cessation
- 2009-01-13 WO PCT/EP2009/050321 patent/WO2009095299A1/de active Application Filing
- 2009-01-13 US US12/865,370 patent/US8506357B2/en not_active Expired - Fee Related
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
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CN102773800A (zh) * | 2012-08-15 | 2012-11-14 | 潘旭华 | 一种提高曲轴连杆颈随动磨削的圆度精度的方法 |
CN102773800B (zh) * | 2012-08-15 | 2014-11-12 | 潘旭华 | 一种提高曲轴连杆颈随动磨削的圆度精度的方法 |
CN109693152A (zh) * | 2017-10-20 | 2019-04-30 | 株式会社捷太格特 | 磨床和研磨方法 |
CN109693152B (zh) * | 2017-10-20 | 2022-06-24 | 株式会社捷太格特 | 磨床和研磨方法 |
CN108453609A (zh) * | 2018-02-07 | 2018-08-28 | 重庆市佳南工贸有限公司 | 一种曲轴抛光装置 |
CN114425706A (zh) * | 2022-03-14 | 2022-05-03 | 浙江杰克智能装备有限公司 | 一种曲轴磨头架卡盘夹具 |
Also Published As
Publication number | Publication date |
---|---|
RU2480320C2 (ru) | 2013-04-27 |
EP2234757A1 (de) | 2010-10-06 |
JP2011510826A (ja) | 2011-04-07 |
EP2234757B1 (de) | 2013-04-10 |
CN101687301B (zh) | 2011-08-31 |
ES2409385T3 (es) | 2013-06-26 |
US20110003534A1 (en) | 2011-01-06 |
DE102008007175A1 (de) | 2009-10-08 |
KR101487467B1 (ko) | 2015-01-28 |
KR20100102522A (ko) | 2010-09-24 |
JP5473006B2 (ja) | 2014-04-16 |
RU2010136695A (ru) | 2012-03-10 |
CN101687301A (zh) | 2010-03-31 |
DE102008007175B4 (de) | 2010-06-02 |
US8506357B2 (en) | 2013-08-13 |
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