EP2931471B1 - Verfahren und rundschleifmaschine zum spitzenlosen rundschleifen - Google Patents

Verfahren und rundschleifmaschine zum spitzenlosen rundschleifen Download PDF

Info

Publication number
EP2931471B1
EP2931471B1 EP13802584.6A EP13802584A EP2931471B1 EP 2931471 B1 EP2931471 B1 EP 2931471B1 EP 13802584 A EP13802584 A EP 13802584A EP 2931471 B1 EP2931471 B1 EP 2931471B1
Authority
EP
European Patent Office
Prior art keywords
workpiece
grinding
grinding wheel
abutment surface
cylindrical
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.)
Active
Application number
EP13802584.6A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2931471A1 (de
Inventor
Erwin Junker
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.)
Erwin Junker Grinding Technology AS
Original Assignee
Erwin Junker Grinding Technology AS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Erwin Junker Grinding Technology AS filed Critical Erwin Junker Grinding Technology AS
Publication of EP2931471A1 publication Critical patent/EP2931471A1/de
Application granted granted Critical
Publication of EP2931471B1 publication Critical patent/EP2931471B1/de
Active 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
    • B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
    • B24B5/18—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centreless means for supporting, guiding, floating or rotating work
    • B24B5/307—Means for supporting work
    • 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
    • B24B49/006—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 speed
    • 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 method for centerless cylindrical grinding of workpieces with rotationally symmetrical contour according to the preamble of claim 1 and also a centerless cylindrical grinding machine according to the preamble of claim 2 for performing the method of claim 1.
  • the method according to the preamble of claim 1 and the device according to The preamble of claim 2 are both of the USRE 17311E known.
  • the rotationally symmetrical workpiece is located between a rotating regulating wheel and a rotating grinding wheel and is additionally supported on the so-called supporting ruler, cf. for example Dubbel, Paperback for Mechanical Engineering, 15th ed. 1983, page 1003 , Fig. 50g, h.
  • the workpiece is driven by the regulating wheel for rotation and ground by the grinding wheel.
  • Regulating wheel and grinding wheel are in the usual way in drive units (in the grinding wheel known as the wheelhead or grinding spindle unit) stored, the peripheral speed of the regulating wheel must be lower than that of the grinding wheel. Due to the difference in rotational speeds, the so-called slip, the grinding effect comes about.
  • grinding wheel and "regulating wheel” are in this application as working terms in terms of their function in centreless cylindrical grinding, but do not limit their training in the axial extent.
  • these discs may be cylindrical, stepped or tapered, and may include multiple sections of different contour.
  • the regulating wheel and the grinding wheel can be composed in the axial direction of individual section parts, which lie directly next to each other or are separated by intermediate spaces.
  • the grinding result ie dimensional accuracy, roundness and surface quality
  • the regulating wheel was recognized as one of the possible sources of error. These may, depending on the quality of their design and their storage in the associated drive unit itself have a runout, which has a detrimental effect on the grinding result.
  • the regulating wheel also has to be dressed from time to time, which can lead to further inaccuracies.
  • DD 55 918 A proposed, in the centreless cylindrical grinding of disc-shaped workpieces with very small dimensions no longer drive the regulating wheel to rotate.
  • the support ruler was omitted.
  • a support means is provided, which is referred to as "workpiece holder” and consists of two rows of ball bearings, which are easily rotatably mounted on two parallel axes in bearing blocks.
  • the driven regulating wheel and the supporting ruler have been replaced by two rows of non-driven regulating wheels.
  • the grinding wheel and the two rows of ball bearings form a grinding gap in which the workpieces are located and rest on two opposing ball bearings.
  • the workpieces When grinding, the workpieces are rotated by the frictional connection with the grinding wheel, whereby the support of the workpieces on the ball bearings causes a low friction against the grinding wheel.
  • the workpieces receive the rotation required for the grinding operation solely as a result of frictional entrainment by the grinding wheel.
  • a workpiece guide is described on machines for grinding cylindrical or conical body by means of three cooperating guide rails for centerless cylindrical grinding.
  • Two of the guide rails form a wedge space which opens outward from the grinding wheel and in which the workpiece to be ground is arranged.
  • On the opening side of the wedge space a back rail is arranged, which is movable in the direction of the other two rails, ie in the direction of the grinding wheel, so that the workpiece is pressed under the action of a consistently acting pressure against the two guide rails in the direction against the grinding wheel.
  • a device for centreless cylindrical grinding which has a conventional arrangement of grinding wheel, regulating wheel and support rail.
  • the support rail may be formed as a prism support, which is pivotable about a free pivot point, that is arranged to be movable.
  • Both the grinding wheel and the regulating wheel are provided with a drive.
  • the free tilting of the workpiece support is used to always distribute the support points for the workpiece so that a compensation of the wave movement caused by a forward movement of the workpiece by the simultaneous return due to the wave troughs on the Bearing surfaces takes place.
  • US RE 17 311 E is a centerless grinding machine described, with which cylindrical workpieces can be ground.
  • the grinding wheel as well as a U-shaped guide block for guiding the workpiece to be ground on support rails are arranged on a machine frame.
  • a centrally arranged counter ruler and a top ruler and a sub-ruler are arranged within this U-shaped guide block.
  • the rulers have bearing surfaces, with the bearing surfaces of the upper and lower rulers forming an angle to each other in the interior of the U.
  • the centrally arranged counter ruler is adjusted by means of screws to a defined position, so that while grinding the workpiece outer contour, the workpiece is pressed by the grinding forces on this counter ruler, but at least pushed out of the system by a ruler, so that there is a game. Play on the contact surfaces can cause discontinuities in the workpiece to always be copied back into the ground surface on the workpiece.
  • the counter ruler is fixed and therefore can not act as a brake body with adjustable braking force.
  • the grinding wheel is detected on the machine stand, and the workpiece is delivered manually with its U-shaped recording of the grinding wheel.
  • the invention is based on the object to provide a method and an apparatus of the type mentioned above, with which the rotationally symmetric parts are ground with great dimensional and dimensional accuracy even at the high operating speeds of industrial mass production, the required cylindrical grinding machine still basically in the Structure, so it is very cost-effective and works reliably over long periods of time with constant accuracy.
  • the advantage of the method according to claim 1 in comparison to the DD 55 918 A is that in addition to the rotational movement of the driven for rotation grinding wheel no further rotation-based drive or support parts are required.
  • the two non-rotating contact surfaces, which are formed flat in the associated cylindrical grinding machine, in each case provide a more accurate support than the ball bearings in the prior art.
  • a separate drive means for the rotation of the workpiece is not required.
  • a single rotary drive for the grinding wheel is required, which at the same time also sets the workpiece in rotation. Harmful influences from the additional drive device in the form of a rotating drive belt can be avoided in any case.
  • the ratio of the speeds of the grinding wheel and workpiece or their rotational speeds are continuously monitored and adjusted to a certain optimum ratio.
  • the feed force of the grinding wheel and the braking force exerted by the support means are adjusted so that a certain ratio of the speeds of workpiece and grinding wheel results, which leads to optimum grinding results.
  • the object underlying the application is achieved in that the support device has at least one first planar contact surface and a second planar abutment surface, both operatively immovable in the circumferential direction of travel of the workpiece, extending at a distance from each other along the workpiece and engaging around the workpiece with sliding contact.
  • Level contact surfaces which correspond to the known support ruler, are a proven means for supporting the rotating workpiece. The workpiece is held by these flat contact surfaces with the greatest possible accuracy in its predetermined, optimal for the grinding process. All concentricity errors resulting from a rotating support are thereby excluded.
  • the support surfaces are optimally adjusted to the circumferential direction of the workpiece and its diameter, this setting is so far operationally immutable.
  • the cylindrical grinding machine has a device for speed measurement, by means of which the workpiece speed is continuously monitored.
  • the optimum balance between the grinding wheel rotational speed, the feed force of the grinding wheel and the braking force of the brake body can be constantly maintained. In this way, not only the support means of the cylindrical grinding machine according to the invention is set up for an optimal grinding result, but certain optimal operating conditions can be maintained even with great consistency in the desired manner.
  • first planar contact surface and the second planar contact surface depending on the diameter of the workpiece and the desired grinding process are required.
  • An appropriate adjustment can be made easily before the grinding process by adjusting or replacing the contact surfaces.
  • the first planar contact surface and the second planar contact surface generally remain immobile in their entirety, which is expressed in the advantageous development according to claim 3.
  • the contact surfaces sometimes have to be adjusted during the grinding cycle because they then have to be continuously adapted to the decreasing diameter of the workpiece 1 at the grinding position.
  • the first contact surface and the second contact surface can be designed to be movable in operation.
  • a further advantageous embodiment is defined in claim 5.
  • This embodiment may be important for itself or in conjunction with the other advantageous developments. It refers to the fact that the first contact surface is located on a support plate located below the workpiece, which is formed in the manner of the usual support ruler.
  • the second contact surface may be located on a separate support rail, which is arranged opposite the grinding wheel. Support plate and support rail allow a stable mounting of the two contact surfaces, so that the required grinding accuracy is reliably maintained for a long time remains. In this way, the applied on the grinding wheel feed force presses the workpiece in an optimal contact with the first and the second support surface.
  • a brake with a brake body is arranged in the cylindrical grinding machine according to the invention on the support means, which acts via an adjusting device with adjustable braking force on the workpiece.
  • the brake may preferably be designed such that the brake body forms a further support body with a third contact surface.
  • this third contact surface is arranged so that it is opposite to the first contact surface and acts on the workpiece from above.
  • the first contact surface and the second contact surface are combined to form a common support body, which forms a prism opposite the grinding wheel and engages around the workpiece.
  • a prism can be formed solid and very stable, in which case a safe, low-wear and reliable support of the workpiece is ensured in the desired position.
  • Such a solid prism can also be mounted as a whole and possibly swung out of its working position into a maintenance position, if necessary.
  • the cross section of the prism can have the shape of an angle or the shape of a trapezoid (claim 9). It is crucial in any case that oblique contact surfaces are formed, which surround the workpiece.
  • a section of a cylindrical grinding machine for centerless cylindrical grinding is shown in cross section.
  • the cylindrical workpiece 1 has a longitudinal axis 2 and, during operation, contacts the rotating grinding wheel 3, the axis of rotation of which lies outside the drawing surface.
  • the horizontal connecting line 4 runs parallel to the horizontal longitudinal axis 2 of the workpiece 1 and to the axis of rotation of the grinding wheel 3, not shown. This results in the contact point 5 at which the grinding wheel 3 and the workpiece 1 touch each other on their circumference.
  • the axis of rotation of the grinding wheel 3 may be inclined from the horizontal by a small angle of about 3 ° to 5 °, for example in the continuous grinding of cylindrical workpieces 1, thereby receiving their longitudinal feed ,
  • the material of the grinding wheel 3 corundum and CBN come into question.
  • a support plate 6, which is formed as a conventional support ruler. Its upwardly facing flat surface is the first contact surface 7 of the support device designed according to the invention.
  • the first contact surface 7 is inclined as usual by an angle ⁇ , starting from its side facing the grinding wheel 3 side downward.
  • the first contact surface 7 can be adjusted in height. Possible settings are next to the in Fig. 1 settings shown below “center” also the settings “center” and “center”. The middle is given by the connecting line 4.
  • the support plate 6 must be adjusted during grinding; This is sometimes the case, for example, during plunge grinding when the first contact surface 7 then has to be continuously adapted to the decreasing diameter of the workpiece 1. Then, the first contact surface 7 "operatively controlled movable" is formed.
  • the grinding wheel 3 with a certain angular offset opposite a support rail 8 is arranged, at which the second planar contact surface 9 is located.
  • the angular offset corresponds approximately to the angle ⁇ .
  • the second planar contact surface 9 forms an angle ⁇ with a common tangent 10, which is placed in the contact point 5 on the workpiece 1 and the grinding wheel 3.
  • Other angular positions are also possible.
  • Both contact surfaces 7 and 9 can thus be provided "operational immovable” or "operatively controlled movable", the setting both Contact surfaces together or individually - first contact surface 7 and second contact surface 9 each individually - is possible.
  • the contact surfaces 7 and 9 may consist of polycrystalline diamond (PCD) or carbide; the tops of the support plate 7 and the support rail 8 are then coated accordingly.
  • Fig. 1 shows a schematic representation of a brake 11.
  • a brake body 12 is acted upon by a braking force P by an adjusting device, not shown, via an intermediate suspension 13.
  • the brake body 12 abuts with a third contact surface 14 on the peripheral surface of the workpiece 1.
  • the braking force P is exerted on the intermediate suspension 13 in such a way that in the grinding operation, the workpiece 1 is braked to the correct extent.
  • the grinding wheel 3 must on the one hand drive the workpiece 1 for rotation, but on the other hand exert a grinding action by the speed of the workpiece 1 is lower than the speed of the grinding wheel 3.
  • the speed of the workpiece 1 is constantly monitored, for which numerous options available stand, z.
  • sensors or structure-borne sound sensor In accordance with the measured speed, an evaluation and control arrangement constantly the optimum balance between the grinding wheel speed, the feed force of the grinding wheel 3 and the braking force P ago, thus finally the optimal speed of the workpiece 1 is achieved.
  • the workpiece 1 When operating the in Fig. 1 In a circular cross-section machine shown in a partial cross section, the workpiece 1 abuts on the first contact surface 7 and on the second contact surface 9.
  • the rotating grinding wheel 3 When the rotating grinding wheel 3 is supplied against the workpiece 1, it exerts a feed force F in the X direction on the workpiece 1.
  • the grinding wheel 3 acts as a "friction wheel drive" and takes that Workpiece 1 rotating with.
  • the direction of movement 15 on the surface of the grinding wheel 1 and the direction of movement 16 on the surface of the workpiece 1 run at the contact point 5 in the same direction.
  • the workpiece 1 is pressed against the first contact surface 7 and the second contact surface 9 with a certain contact pressure.
  • the workpiece 1 can still rotate relatively easily on the contact surfaces 7 and 9, but is slowed down a bit and thus has a reduced rotational speed.
  • the rotational speed of the workpiece 1 decreases very noticeably.
  • the workpiece 1 is thus taken by the grinding wheel 3 only to a reduced extent for rotation, this results in the grinding effect which now exerts the grinding wheel 3 on the workpiece 1.
  • the correct relationship between the drive effect and the grinding action is set and maintained by measuring the workpiece speed and the already mentioned evaluation and control arrangement. With the brake 11, the braking effect on the workpiece 1 can be set much more accurately than if the braking takes place solely by the first contact surface 7 and the second contact surface 9.
  • FIGS. 2 to 4 Further embodiments are shown in which the prism is realized in the usual sense as a structural unit.
  • the proportions of the grinding wheel 3 and the workpiece 1 changed significantly, so that the representation is clearer and also the drawings can be smaller.
  • a grinding spindle unit 17 which drives the grinding wheel 3 about its axis of rotation 18 for rotation.
  • the grinding wheel 3 contacts the workpiece 1 at the contact point 5.
  • the workpiece 1 is surrounded by a prism 19, which is formed in one piece and with the cross section of an angle. If the grinding spindle unit 17 is delivered in the feed direction X with the feed force F in the direction of the workpiece 1, the rotary drive of the workpiece 1 results at the contact point 5 by the entrainment as a result of friction.
  • the workpiece 1 is pressed against the first abutment surface 7 and the second abutment surface 9 of the prism 19 and can rotate in the prism 19 only slowed down. As a result, the already mentioned advantageous slip between the grinding wheel 3 and the workpiece 1 at the contact point 5 comes about.
  • the Fig. 3 shows another form of a prism 20, which here has a trapezoidal cross-section.
  • the workpiece 1 rests only on the two arms of the trapezoid on which the first contact surface 7 and the second contact surface 9 are located.
  • the remaining details are the same as in Fig. 2 ,
  • the embodiment with the one-piece prism 19 or 20 is simpler than the separate version of the support plate 6 and support rail 8, thereby resulting in less effort to greater stability and accuracy.
  • FIG. 4 Here, in principle, the design of a prism 21 before according to the Fig. 2 , however, an upper arm 22 is pivoted about a pivot axis 23 to the body 24 of the prism 21.
  • the upper arm 22 can be pressed by an adjusting device 25, which is part of the brake, with adjustable and controllable effect on the workpiece 1.
  • the effect of the brake 11 has already been described above.
  • the third abutment surface 26 is again formed.
EP13802584.6A 2012-12-14 2013-12-05 Verfahren und rundschleifmaschine zum spitzenlosen rundschleifen Active EP2931471B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012223276.1A DE102012223276B4 (de) 2012-12-14 2012-12-14 Verfahren und rundschleifmaschine zum spitzenlosen rundschleifen
PCT/EP2013/075656 WO2014090678A1 (de) 2012-12-14 2013-12-05 Verfahren und rundschleifmaschine zum spitzenlosen rundschleifen

Publications (2)

Publication Number Publication Date
EP2931471A1 EP2931471A1 (de) 2015-10-21
EP2931471B1 true EP2931471B1 (de) 2017-02-15

Family

ID=49753144

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13802584.6A Active EP2931471B1 (de) 2012-12-14 2013-12-05 Verfahren und rundschleifmaschine zum spitzenlosen rundschleifen

Country Status (7)

Country Link
US (1) US11383342B2 (ru)
EP (1) EP2931471B1 (ru)
CN (1) CN104870144B (ru)
DE (1) DE102012223276B4 (ru)
ES (1) ES2625140T3 (ru)
RU (1) RU2638478C2 (ru)
WO (1) WO2014090678A1 (ru)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021123437A1 (de) 2021-09-10 2023-03-16 Schaeffler Technologies AG & Co. KG Vorrichtung und Verfahren zur Führung von Werkstücken beim spitzenlosen Schleifen

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015206565B4 (de) * 2015-04-13 2024-02-08 Erwin Junker Grinding Technology A.S. VERFAHREN UND SYSTEM ZUM AUßENSCHLEIFEN VON WELLENTEILEN ZWISCHEN SPITZEN
JP6408512B2 (ja) * 2016-05-27 2018-10-17 ミクロン精密株式会社 センタレス研削機およびその制御方法
DE102016215065A1 (de) 2016-08-12 2018-02-15 Schaeffler Technologies AG & Co. KG Werkzeugmaschine zum Schleifen von mindestens einem Rundkörper, Schleifscheibe für die Werkzeugmaschine sowie Verfahren
CN106826431B (zh) * 2016-12-14 2019-03-08 湖南大学 无心磨工件装卡装置
CN111168549A (zh) * 2020-03-07 2020-05-19 合肥新士鑫机械科技有限公司 一种耐磨球氧化皮清理装置
CN112059752B (zh) * 2020-09-09 2021-11-30 马鞍山中金超硬材料科技发展有限公司 一种无心磨锥度工件工装夹具及其装夹工艺

Family Cites Families (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE55918C (de) A. ULLMANN in Leipzig, Bismarckstrafse 16 Vorrichtung zum An- und Ausziehen von Ueberschuhen
USRE17311E (en) * 1929-05-28 A cobpoba
US1364006A (en) * 1920-12-28 swanson
US712815A (en) * 1902-04-18 1902-11-04 Abraham B Landis Work-rest for grinding-machines.
DE341606C (de) * 1914-02-01 1921-10-06 August Riebe Werkstueckfuehrung an Maschinen zum Schleifen zylindrischer oder kegliger Koerper
US1449507A (en) * 1920-08-30 1923-03-27 Continental Motors Corp Steady rest for grinding machines
US1577353A (en) * 1924-02-27 1926-03-16 Cincinnati Milling Machine Co Steady rest
US1663991A (en) * 1927-05-31 1928-03-27 Cincinnati Grinders Inc Centerless work guide
US1709671A (en) * 1927-05-31 1929-04-16 Cincinnati Grinders Inc Grinding machinery
US2099161A (en) * 1935-08-30 1937-11-16 Norton Co Grinding machine
US2102518A (en) * 1936-10-12 1937-12-14 Norton Co Grinding machine
US2286620A (en) * 1939-05-18 1942-06-16 Landis Tool Co Steady rest adjusting means
US2261903A (en) * 1940-08-15 1941-11-04 Norton Co Grinding machine steady rest
US2638719A (en) * 1948-08-26 1953-05-19 Landis Tool Co Crank grinding machine
DE1009525B (de) * 1952-08-25 1957-05-29 Gotthold Pahlitzsch Dr Ing Spitzenlose Schleifmaschine zum Rundschleifen von Werkstuecken
US2743555A (en) * 1954-05-04 1956-05-01 Irvine Keith Centerless grinding attachment for lathes
DE1179826B (de) * 1962-01-18 1964-10-15 Hans Modler Dipl Ing Maschine zum spitzenlosen Schleifen runder Werkstuecke
US3330074A (en) * 1964-12-07 1967-07-11 Cincinnati Milling Machine Co Machine tool backrest
US3391500A (en) * 1965-04-01 1968-07-09 Norton Co Fluid operated steady rest with automatic feed
US3427755A (en) * 1965-12-20 1969-02-18 Brown & Sharpe Mfg Counter-force motivated back rest
US3425168A (en) * 1966-08-19 1969-02-04 Babcock & Wilcox Co Work follower rests
US3977129A (en) * 1973-03-06 1976-08-31 Landis Lund Limited Grinding machine
US3859755A (en) * 1973-05-04 1975-01-14 Sundstrand Syracuse Power programming system for a centerless grinder
US3854252A (en) * 1973-07-26 1974-12-17 A Lindsay Work support shoes for centerless grinding machines
GB1498811A (en) * 1974-03-01 1978-01-25 Crosfield Electronics Ltd Preparation of gravure printing cylinders
SU814667A1 (ru) 1978-01-10 1981-03-23 Курский Политехнический Институт Устройство дл шлифовани пре-цизиОННыХ СООСНыХ пОВЕРХНОСТЕй
DE2856339C2 (de) * 1978-12-27 1985-12-05 Fortuna-Werke Maschinenfabrik Gmbh, 7000 Stuttgart Vorrichtung zum kontinuierlichen, automatischen Zustellen von Setzstockbacken zur Halterung eines Werkstückes auf einer Rundschleifmaschine
US4276723A (en) * 1979-10-09 1981-07-07 The Warner & Swasey Company Compensating steadyrest
US4507896A (en) * 1982-11-30 1985-04-02 Energy Adaptive Grinding, Inc. Centerless grinding systems
US4663892A (en) * 1982-11-30 1987-05-12 Energy Adaptive Grinding, Inc. Force-controlled steadyrest system
US5048235A (en) * 1988-11-15 1991-09-17 Smith Roderick L Predictive high wheel speed grinding system
US5177901A (en) * 1988-11-15 1993-01-12 Smith Roderick L Predictive high wheel speed grinding system
FR2670150B1 (fr) * 1990-12-05 1995-04-07 Createc Rollers Dispositif d'usinage et de surface de materiaux elastiques.
US5237780A (en) * 1992-02-04 1993-08-24 Arobotech Systems, Inc. Steady rest with internal centerline adjustment
DE4330800A1 (de) 1993-09-10 1994-02-17 Nomoco Maschinenbau Gebrueder Verfahren und Vorrichtung zum spitzenlosen Schleifen von runden, zylinderförmigen Werkstücken
JP3335074B2 (ja) * 1996-06-07 2002-10-15 ミクロン精密株式会社 センターレス研削における研削抵抗算出用データの検出方法および同検出装置
US6148248A (en) * 1997-12-02 2000-11-14 Zhongxue Gan Apparatus and method for lobing and thermal-damage control in shoe centerless grinding
US6273785B1 (en) * 1998-09-02 2001-08-14 Xerox Corporation Non-contact support for cyclindrical machining
US6287183B1 (en) * 1998-12-18 2001-09-11 The University Of Connecticut Vacuum-hydrostatic shoe for centerless grinding
US6431963B1 (en) * 2000-10-04 2002-08-13 Richard L. Delmoro Tire uniformity machine grinder
US7008294B2 (en) * 2002-07-17 2006-03-07 Erwin Junker Maschinenfabrik Gmbh Method and device for grinding a rotating roller using an elastic steady-rest support
CN2573150Y (zh) * 2002-10-22 2003-09-17 无锡机床股份有限公司 轴承磨床的浮动支承机构

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021123437A1 (de) 2021-09-10 2023-03-16 Schaeffler Technologies AG & Co. KG Vorrichtung und Verfahren zur Führung von Werkstücken beim spitzenlosen Schleifen

Also Published As

Publication number Publication date
WO2014090678A1 (de) 2014-06-19
ES2625140T3 (es) 2017-07-18
CN104870144A (zh) 2015-08-26
US11383342B2 (en) 2022-07-12
RU2015128255A (ru) 2017-01-20
US20150298275A1 (en) 2015-10-22
DE102012223276B4 (de) 2015-09-03
RU2638478C2 (ru) 2017-12-13
EP2931471A1 (de) 2015-10-21
CN104870144B (zh) 2017-11-24
DE102012223276A1 (de) 2014-06-18

Similar Documents

Publication Publication Date Title
EP2931471B1 (de) Verfahren und rundschleifmaschine zum spitzenlosen rundschleifen
DE10139894B4 (de) Verfahren und Vorrichtung zum spitzenlosen Rundschleifen
DE1502416C2 (de) Schleifvorrichtung für die Schleifscheibe einer Walzenschleifmaschine. Ausscheidung aus: 1427485
DE102015206565B4 (de) VERFAHREN UND SYSTEM ZUM AUßENSCHLEIFEN VON WELLENTEILEN ZWISCHEN SPITZEN
EP2384853B1 (de) Doppelseitenschleifmaschine
EP0096411B1 (de) Abricht-Schleifverfahren für elektronisch gesteuerte Schleifmaschinen
EP2544857B1 (de) Spitzenlose rundschleifmaschine zum schleifen von stangenförmigen werkstücken und verfahren zum spitzenlosen rundschleifen von stangenförmigen werkstücken
DE3340577C2 (de) Maschine zum Schleifen oder Polieren einer Innenoberfläche eines hohlzylindrischen Werkstücks
EP0154683B1 (de) Schleifmaschine zum Nassschleifen von Flachwalzen mit schwachem Profil
EP2488264B1 (de) Bearbeitungsvorrichtung für skier
EP0957188B1 (de) Schleifen von Arbeitselementen einer Karde
EP0919333B1 (de) Walzenschleifmaschine
DE1017936B (de) Vorrichtung zum spitzenlosen Schleifen von runden Stangen oder Rohren
DE3711502C2 (ru)
DE548783C (de) Vorrichtung zum spitzenlosen Schleifen oder Abphasen der Enden von Rollen
DE2453885A1 (de) Verfahren und vorrichtung zur herstellung von kurvenscheiben
DE570342C (de) Spitzenlose Schleifmaschine
DE10100870C1 (de) Verfahren zum Betreiben einer Spitzenlos-Schleifmaschine sowie Spitzenlos-Schleifmaschine zum Durchführen des Verfahrens
DE408502C (de) Hilfsvorrichtung an Rundschleifmaschinen, insonderheit Rollenschleifmaschinen
AT138300B (de) Verfahren und Vorrichtung zur Bearbeitung von Walzen, insbesondere von Kaliberwalzen für Pilgerschrittwalzwerke, sowie Walzenkaliber.
DE2901765A1 (de) Maschine zur herstellung von laufrillen bei skiern
DE1577500A1 (de) Verfahren und Vorrichtung zum automatischen Ausgleich der Schleifscheibenabnutzung bei einer Planschleifmaschine
DE19920189A1 (de) Spitzenlose Rundschleifmaschine
DE1143732B (de) Vorrichtung zum Schleifen von Drehstuecken
DE2249307A1 (de) Vorrichtung zum schleifen der kanten von holzteilen

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: 20150428

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

AX Request for extension of the european patent

Extension state: BA ME

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

Effective date: 20160627

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20161013

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: CH

Ref legal event code: EP

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

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: AT

Ref legal event code: REF

Ref document number: 867625

Country of ref document: AT

Kind code of ref document: T

Effective date: 20170315

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502013006388

Country of ref document: DE

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20170215

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2625140

Country of ref document: ES

Kind code of ref document: T3

Effective date: 20170718

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

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: 20170516

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: 20170515

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: 20170215

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: 20170215

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: 20170215

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

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: 20170215

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: 20170615

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: 20170215

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: 20170215

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: 20170515

Ref country code: NL

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

Effective date: 20170215

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

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: 20170215

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: 20170215

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: 20170215

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502013006388

Country of ref document: DE

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

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: 20170215

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: 20170215

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: 20170215

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 5

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20171116

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: 20170215

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

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: 20171205

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: 20170215

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20171231

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

Ref country code: IE

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

Effective date: 20171205

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

Ref country code: LI

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

Effective date: 20171231

Ref country code: BE

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

Effective date: 20171231

Ref country code: CH

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

Effective date: 20171231

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: 20131205

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: 20170215

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

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: 20170215

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: 20170215

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 867625

Country of ref document: AT

Kind code of ref document: T

Effective date: 20181205

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: 20170215

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: 20181205

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

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: 20170215

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: 20170615

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

Ref country code: ES

Payment date: 20230119

Year of fee payment: 10

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

Ref country code: IT

Payment date: 20221230

Year of fee payment: 10

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

Ref country code: GB

Payment date: 20231220

Year of fee payment: 11

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

Ref country code: FR

Payment date: 20231219

Year of fee payment: 11

Ref country code: CZ

Payment date: 20231127

Year of fee payment: 11

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

Ref country code: ES

Payment date: 20240118

Year of fee payment: 11

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

Ref country code: DE

Payment date: 20240228

Year of fee payment: 11