EP2516109A1 - Verfahren zum rundschleifen von langen, dünnen rundstangen und rundschleifmaschine zur durchführung des verfahrens mit einer nachlaufenden, selbstzentrierenden lünette - Google Patents
Verfahren zum rundschleifen von langen, dünnen rundstangen und rundschleifmaschine zur durchführung des verfahrens mit einer nachlaufenden, selbstzentrierenden lünetteInfo
- Publication number
- EP2516109A1 EP2516109A1 EP10800733A EP10800733A EP2516109A1 EP 2516109 A1 EP2516109 A1 EP 2516109A1 EP 10800733 A EP10800733 A EP 10800733A EP 10800733 A EP10800733 A EP 10800733A EP 2516109 A1 EP2516109 A1 EP 2516109A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- grinding
- steady rest
- grinding wheel
- round
- round rod
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims description 64
- 238000005259 measurement Methods 0.000 claims abstract description 6
- 230000033001 locomotion Effects 0.000 claims description 14
- 230000008569 process Effects 0.000 description 14
- 230000008901 benefit Effects 0.000 description 6
- 230000002093 peripheral effect Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000036962 time dependent Effects 0.000 description 1
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
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B27/00—Other grinding machines or devices
- B24B27/0061—Other grinding machines or devices having several tools on a revolving tools box
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
- B24B41/065—Steady rests
-
- 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
- B24B49/02—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 according to the instantaneous size and required size of the workpiece acted upon, the measuring or gauging being continuous or intermittent
- B24B49/04—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 according to the instantaneous size and required size of the workpiece acted upon, the measuring or gauging being continuous or intermittent involving measurement of the workpiece at the place of grinding during grinding operation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/02—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work
- B24B5/04—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work for grinding cylindrical surfaces externally
Definitions
- the invention relates to a method for cylindrical grinding of long, thin round bars according to the preamble of claim 1 and a cylindrical grinding machine for carrying out the method according to the preamble of claim 7.
- a method of this type is known from DE 103 08 292 B4 of the Applicant.
- the known method is intended for the production of tools made of hard metal, which is especially intended to round rods made of sintered cemented carbide as a starting material.
- the known method is "working from the running rod", ie the forming the starting material round rod whose length is a multiple of the length of the individual tool is gradually pushed through the chuck of the workpiece headstock and each tightened when a certain, the The method is imperative that the outstanding end area is clamped between the workpiece headstock and a tailstock during cylindrical grinding between the workpiece headstock and its tailstock first still free end of the round rod a face cone are sanded with great accuracy, which is to be retracted for tightening in a hollow body, which is located on a sleeve of the tailstock.
- a cylindrical grinding machine which is also intended for grinding long, thin round rods.
- length / diameter ratios of more than 100 are to be achieved with this machine.
- a workpiece headstock in the direction of its spindle axis which is also the axis of rotation of the clamped workpiece, slidably mounted on the machine bed.
- the long, thin workpiece clamped in the workpiece spindle (quill) is driven with its free end between two grinding wheels, the axes of rotation of which run parallel to that of the workpiece.
- the two grinding wheels lie approximately in the same radial plane and leave between them a gap, into which the workpiece can enter.
- the two grinding wheels, one of which can be used for roughing and the other for fine machining are delivered to the workpiece in a direction perpendicular to their axes of rotation.
- a support with a V-shaped recess is arranged; a separate pressure roller causes the workpiece is held firmly in this recess.
- the known cylindrical grinding machine according to DE 694 21 859 T2 is intended to operate such that the workpiece headstock guides the workpiece in its axial direction along the grinding wheels until the entire length of the diameter of the workpiece to be ground is ground. In this case, however, the workpiece lies in the recess of the support with a peripheral surface which is not to be machined in this machine, and the workpiece must rotate with this peripheral surface in the recess. This is only possible with regard to the grinding result when the workpiece is already ground on its cylindrical shank. With the cylindrical grinding machine according to DE 694 21 859 12, therefore, no workpieces can be ground that still have their - for example turned - raw contour.
- DE 198 57 364 A1 shows that an in-process measurement and control can also be carried out successfully during peeling grinding.
- peel grinding the outside diameter of a workpiece to be produced is ground in a single longitudinal stroke. This brings with it the difficulty in measuring and controlling, that the already honed Au- # be messyr can not be corrected later if the specified size is exceeded.
- the workpiece is permanently and continuously measured during grinding on the existing actual dimension and simultaneously the measured actual size continuously automatically corrected to a predetermined grinding time-dependent nominal size. In this way it is avoided that the workpiece to be ground is ground to undersize.
- the principle of the method according to the invention is based on the fact that in grinding operation, the grinding wheel and the steady rest together form an operational solid unit and that this unit is moved relative to the round rod in the longitudinal direction.
- the fixed longitudinal assignment is given by the fact that the bezel rests against the already ground by the peel grinding part of the round rod.
- the bezel is thus opposite the grinding area - this is the area in which the grinding wheel touches the round bar - offset laterally towards the workpiece headstock out.
- the grinding wheel is always the first on the uncut round bar effective, so that one can also speak of a caster of the bezel.
- the grinding wheel is no longer active in the ground area of the round bar on which the steady rest rests.
- “Operationally fixed” in claim 1 means that the steady rest and the grinding wheel must be held in this fixed longitudinal allocation at least during grinding.This can be done simply by mounting a grinding spindle bearing the grinding wheel firmly together with the steady rest on a carriage or grinding table is, which is axially moved relative to a fixed workpiece headstock in which the round rod is clamped.
- the reverse arrangement with fixed unit consisting of grinding wheel and steady rest as well as with moving round bar is also possible.
- the steady rest can be moved in the axial direction relative to the grinding wheel. This has advantages when grinding special contours as well as when loading and unloading the grinding machine.
- the method according to the invention has the advantage that the steady rest is always effective close to the grinding wheel.
- a single bezel is sufficient, because it always stands at the optimum position.
- the arrangement of further steady rests is also not ruled out in the case of particularly long round bars which tend to sag.
- the support on the already ground by longitudinal grinding area of the round bar leads to a safe and accurate guidance and is another prerequisite for a grinding result of high accuracy.
- the method can therefore still be carried out by peeling grinding, and the round rods can be clamped with their rough contour in the workpiece headstock.
- the special preceding method step is therefore omitted in that the cylindrical shank of the workpiece / blank must be ground.
- the secure support of the round rod close to the grinding wheel brings with it the further advantage that the method can be carried out solely with flying clamping of the round rod in the workpiece headstock; It is therefore not essential to support the other end of the round rod in a tailstock.
- the in-process measurement and control of the ground diameter is also carried out in the inventive method. Since the steady rest must be offset laterally in the direction of the workpiece headstock relative to the plane of rotation of the grinding wheel, the feeler elements of a measuring device can still be brought into contact with the round rod in the grinding area of the grinding wheel. This is the peripheral area on the round bar that is touched by the grinding wheel. The measurement takes place at the finished dimension of a grinding pass.
- the inventive method can be carried out with particular accuracy by constantly adjusting and correcting the loop intervention.
- the method according to the invention can furthermore be optimized in that it is carried out according to claim 3 with an automatically adjusting and centering steady rest. This ensures that the axis of rotation of the rotating round bar is always held in the position predetermined by the workpiece headstock. It can thus achieve an optimal grinding result.
- Claims 5 and 6 indicate how the method according to the invention can be carried out in practice when the round bar is moved in its longitudinal direction during grinding or stands still. All described motion and control operations can be CNC controlled.
- tapered constrictions on the workpiece can be ground in the same process as diameter grinding.
- the generatrix of the tapered transition section 34 may be rectilinear or curved. It should be explained with reference to FIG. 9 that workpieces with graduated diameter regions can also be ground with the method according to the invention.
- the region 32 of larger diameter D1 A is ground by the basic method, whereby a little more than the desired length L of this section 32 is achieved, cf.
- the longitudinal feed of the grinding (see the directional arrow 16) is stopped and the grinding wheel 5 is lifted from the round bar 3 by a small amount.
- the bezel 9 is then reset against the feed direction 16 with respect to the grinding wheel 5, so that the grinding wheel 5 and the lunette jaws 19 face each other, cf. the dashed line with 5 'and 19'.
- the grinding wheel 5 is again delivered to the round bar 3 until a smaller diameter D1 B is reached. This is made possible by using a trailing bezel 9; ie the lunette jaws 19 are self-centering during the delivery of the grinding wheel 5 to the smaller workpiece diameter. By doing so, the round bar 3 is continuously supported.
- the grinding wheel 5 After the grinding wheel 5 has been fed to the smaller diameter to be ground, it can be further ground in the procedure already described. It is thus again set the axial distance between the lunette jaws 19 and the grinding wheel 5.
- the round rod 3 is now guided along again in the usual manner on the grinding wheel 5 in the longitudinal grinding feed.
- This procedure is only possible Lich because the already described double mobility of workpiece headstock 1 and grinding table 29 is given. Furthermore, this procedure is bound to the fact that the changes in the diameter remain in the grinding, so the maximum cutting depth for the grinding wheel during peeling grinding is not exceeded. If this is the case, the workpiece is ground in several cuts to finished size.
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200910059897 DE102009059897B4 (de) | 2009-12-21 | 2009-12-21 | Verfahren zum Rundschleifen von langen, dünnen Rundstangen und Rundschleifmaschine zur Durchführung des Verfahrens |
PCT/EP2010/070178 WO2011085913A1 (de) | 2009-12-21 | 2010-12-20 | Verfahren zum rundschleifen von langen, dünnen rundstangen und rundschleifmaschine zur durchführung des verfahrens mit einer nachlaufenden, selbstzentrierenden lünette |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2516109A1 true EP2516109A1 (de) | 2012-10-31 |
EP2516109B1 EP2516109B1 (de) | 2013-09-11 |
Family
ID=43824440
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10800733.7A Active EP2516109B1 (de) | 2009-12-21 | 2010-12-20 | Verfahren zum rundschleifen von langen, dünnen rundstangen und rundschleifmaschine zur durchführung des verfahrens mit einer nachlaufenden, selbstzentrierenden lünette |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP2516109B1 (de) |
CN (1) | CN102666008B (de) |
DE (1) | DE102009059897B4 (de) |
ES (1) | ES2431513T3 (de) |
RU (1) | RU2540284C2 (de) |
WO (1) | WO2011085913A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106457512A (zh) * | 2014-03-14 | 2017-02-22 | 埃尔温容克尔研磨技术股份公司 | 用于磨削大型曲轴的方法和设备 |
WO2017080535A1 (en) | 2015-11-10 | 2017-05-18 | Vysoké Učení Technické V Brně | Method and device for surface machining of rotary components |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5862233B2 (ja) * | 2011-11-28 | 2016-02-16 | 株式会社ジェイテクト | 実切込み量測定方法および加工方法および工作機械 |
DE102012105842B3 (de) * | 2012-07-02 | 2014-01-02 | Fritz Studer Ag | Werkzeugmaschine, insbesondere Schleifmaschine, sowie Verfahren zur spanenden Bearbeitung von Werkstücken |
JP6043597B2 (ja) * | 2012-11-13 | 2016-12-14 | 株式会社シギヤ精機製作所 | 振止め装置を有する工作機械 |
CN105397636B (zh) * | 2015-12-09 | 2017-10-24 | 大连理工大学 | 一种薄壁筒类工件内圆磨削径向定位单元及定位装卡装置 |
DE102016103105A1 (de) | 2016-02-23 | 2017-08-24 | Supfina Grieshaber Gmbh & Co. Kg | Finishvorrichtung |
DE102016122746A1 (de) * | 2016-11-25 | 2018-05-30 | Ensinger Gmbh | Drehmaschine und Verfahren zum Drehen von Werkstücken |
CN110103124B (zh) * | 2019-03-28 | 2024-03-22 | 北京百慕合金有限责任公司 | 砂轮片装置、砂轮切割设备及切割方法 |
CN110170908B (zh) * | 2019-03-28 | 2024-03-22 | 北京百慕合金有限责任公司 | 砂轮切割设备及切割方法 |
CN109834540B (zh) * | 2019-04-08 | 2020-10-16 | 哈尔滨工业大学 | 一种用于外圆磨床的阀芯辅助加工装置 |
DE202021106430U1 (de) | 2021-11-25 | 2021-12-02 | Fritz Studer Ag | Rundschleifmaschine, insbesondere zum Schälschleifen |
CN114888689A (zh) * | 2022-05-19 | 2022-08-12 | 合肥国际应用超导中心 | 一种用于高温超导带材焊制导体的外型削磨装置 |
CN114888632A (zh) * | 2022-05-24 | 2022-08-12 | 大连船用柴油机有限公司 | 大型卧车中心架的找正方法 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3734734A1 (de) * | 1987-10-14 | 1989-04-27 | Fortuna Werke Maschf Ag | Nachlaufsetzstock fuer schleifmaschinen |
US5237780A (en) | 1992-02-04 | 1993-08-24 | Arobotech Systems, Inc. | Steady rest with internal centerline adjustment |
CH689350A5 (fr) | 1993-08-24 | 1999-03-15 | Rollomatic Sa | Machine à meuler. |
DE19844243A1 (de) * | 1998-09-26 | 2000-03-30 | Schuette Alfred H Gmbh & Co Kg | Universalschleifmaschine |
DE19857364A1 (de) * | 1998-12-11 | 2000-06-29 | Junker Erwin Maschf Gmbh | Verfahren und Schleifmaschine zur Prozeßführung beim Schälschleifen eines Werkstückes |
JP2002120147A (ja) * | 2000-10-17 | 2002-04-23 | Yamaha Motor Co Ltd | 円筒研削盤 |
DE10308292B4 (de) * | 2003-02-26 | 2007-08-09 | Erwin Junker Maschinenfabrik Gmbh | Verfahren zum Rundschleifen bei der Herstellung von Werkzeugen aus Hartmetall und Rundschleifmaschine zum Schleifen von zylindrischen Ausgangskörpern bei der Herstellung von Werkzeugen aus Hartmetall |
RU2268816C2 (ru) * | 2004-02-16 | 2006-01-27 | Марк Михайлович Свиткин | Способ круглого шлифования длинномерных изделий и люнет |
DE102005006242A1 (de) * | 2004-03-05 | 2005-09-22 | Alfred H. Schütte GmbH & Co. KG | Schleifmaschine und Verfahren zum Einrichten eines Werkstückträgers an einer Schleifmaschine |
US7226340B2 (en) * | 2004-03-05 | 2007-06-05 | Alfred H. Schutte Gmbh & Co. Kg | Grinding machine |
-
2009
- 2009-12-21 DE DE200910059897 patent/DE102009059897B4/de active Active
-
2010
- 2010-12-20 EP EP10800733.7A patent/EP2516109B1/de active Active
- 2010-12-20 WO PCT/EP2010/070178 patent/WO2011085913A1/de active Application Filing
- 2010-12-20 ES ES10800733T patent/ES2431513T3/es active Active
- 2010-12-20 RU RU2012131132/02A patent/RU2540284C2/ru active
- 2010-12-20 CN CN201080057997.4A patent/CN102666008B/zh active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2011085913A1 * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106457512A (zh) * | 2014-03-14 | 2017-02-22 | 埃尔温容克尔研磨技术股份公司 | 用于磨削大型曲轴的方法和设备 |
CN106457512B (zh) * | 2014-03-14 | 2020-04-03 | 埃尔温容克尔研磨技术股份公司 | 用于磨削大型曲轴的方法和设备 |
WO2017080535A1 (en) | 2015-11-10 | 2017-05-18 | Vysoké Učení Technické V Brně | Method and device for surface machining of rotary components |
Also Published As
Publication number | Publication date |
---|---|
RU2012131132A (ru) | 2014-01-27 |
CN102666008B (zh) | 2014-10-29 |
ES2431513T3 (es) | 2013-11-26 |
EP2516109B1 (de) | 2013-09-11 |
WO2011085913A1 (de) | 2011-07-21 |
DE102009059897A1 (de) | 2011-06-22 |
DE102009059897B4 (de) | 2013-11-14 |
RU2540284C2 (ru) | 2015-02-10 |
CN102666008A (zh) | 2012-09-12 |
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