EP1514642A2 - Vorrichtung und Verfahren zur Finishbearbeitung von Wellen, insbesondere von Kurbel- und Nockenwellen - Google Patents
Vorrichtung und Verfahren zur Finishbearbeitung von Wellen, insbesondere von Kurbel- und Nockenwellen Download PDFInfo
- Publication number
- EP1514642A2 EP1514642A2 EP04020720A EP04020720A EP1514642A2 EP 1514642 A2 EP1514642 A2 EP 1514642A2 EP 04020720 A EP04020720 A EP 04020720A EP 04020720 A EP04020720 A EP 04020720A EP 1514642 A2 EP1514642 A2 EP 1514642A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- belt
- workpiece
- dressing
- machining
- abrasive
- 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.)
- Withdrawn
Links
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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
- B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
- B24B19/08—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding non-circular cross-sections, e.g. shafts of elliptical or polygonal cross-section
- B24B19/12—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding non-circular cross-sections, e.g. shafts of elliptical or polygonal cross-section for grinding cams or camshafts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B35/00—Machines or devices designed for superfinishing surfaces on work, i.e. by means of abrading blocks reciprocating with high frequency
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/36—Single-purpose machines or devices
- B24B5/42—Single-purpose machines or devices for grinding crankshafts or crankpins
-
- 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
- B24B53/00—Devices or means for dressing or conditioning abrasive surfaces
- B24B53/10—Devices or means for dressing or conditioning abrasive surfaces of travelling flexible backings coated with abrasives; Cleaning of abrasive belts
Definitions
- the invention relates to a device for finish machining of shafts, in particular crankshafts and camshafts, with Tool carrier, endless abrasive belt having a flexible carrier and an abrasive layer with hard material for processing a rotating about its axis of rotation workpiece, a grinding belt drive, which continuously drives the grinding belt during a workpiece machining, and a tensioning device for the sanding belt, wherein the tool carrier has a machining head with two mutually spaced band deflections which delimit a working area of the machining head, and wherein the sanding belt is guided over the band deflections and passes in the working area on the peripheral surface of the workpiece to be machined.
- a device with the features described above is known from Publication US 5,951,377 known.
- the in the finishing of Although abrasive belts used in workpieces generally have one long life.
- One problem, however, may be that the Abrasive belt unevenly over time due to workpiece machining wears.
- the achievable with the processing surface quality then increases Increasing period of use of the abrasive belt continues from.
- To one To ensure high surface quality is therefore a frequent change of Sanding belt required. This change is especially in one fully automated, continuous workpiece machining very timely and costly because the continuous operation is interrupted for this got to.
- the object is achieved in that the circulating Abrasive belt outside the work area a device for dressing associated with the abrasive layer which is one during the Workpiece machining against the abrasive layer of the on Workpiece machining coordinated belt speed revolving Abrasive belt has deliverable dressing tool.
- the by the Machining of workpieces with the time occurring uneven Wear of the abrasive layer is thereby effectively compensated.
- the Consistently uniform surface of the sanding belt allows the Achieving a permanently high surface quality and thus a long Service life of the sanding belt.
- the hard material can be made of diamond.
- diamond-free hard materials such as As ceramic or resin-bonded silicon carbide, however also possible.
- the dressing tool consists of a dressing roller.
- the Dressing roller can be connected to its own drive, which is the role preferably against the sanding belt movement drives to a possible to ensure high relative speed during the dressing process.
- the dressing roller can also be driven by the sanding belt and to achieve a relative speed between the grinding belt and Abrichtrolle be braked by means of a braking device.
- the dressing tool can also be fixed relative to the sanding belt.
- the abrasive layer may be prior to assembly of the abrasive belt on the Tool carrier be awarded an impression, which during the Workpiece processing according to the surface of the machined Workpiece transfers.
- the dressing tool preferably has one textured surface on which the abrasive layer during contact imparts a corresponding embossing with the dressing tool.
- the dressing tool has a transverse direction to the strip running direction at least one arc existing contour that when dressing the Abrasive belt is transferred to the abrasive layer. This is it for example, possible to edit the peripheral surface of the workpiece to give a slight crown.
- the crowning can be in the range of 3 to 10 ⁇ m lie. This becomes, for example, in some modern, high claimed crankshafts, transmission shafts and the like required.
- the Combination of dressing and profiling process allows for easy and cost-effective generation of complex surface geometries with high Surface quality.
- the device for dressing the sanding belt may from time to time against the abrasive layer are delivered.
- the device a process-controlled feed drive for the infeed movement of the dressing tool on.
- the delivery can be made by means of a timed Clocking done.
- the number of machined workpieces serve to define the dressing intervals.
- Abrasion of the abrasive belt during processing to monitor and the To adjust dressing intervals accordingly.
- the machining head surrounds the to be processed Circumferential surface bifurcated so that the abrasive belt part of the workpiece wraps.
- the machining head is relative mutually adjustable fork arms on which the working area limiting band deflections are arranged. This is a targeted Setting the wrap angle possible. It can also have large wrap angles of more than 180 °.
- an endless support band is provided, which in the work area is stretched parallel to the sanding belt and in this area the back of the Abrasive belt supports.
- the service life of the grinding belt continues increased, since the mechanical stress of the abrasive belt by the supporting effect of the support band is significantly reduced.
- the invention also provides a method for finish machining of Shafts according to claim 9. A preferred embodiment of the method is described in claim 10.
- the device has a Tool carrier 1 and an endless sanding belt 2 for processing a order its axis of rotation A rotating workpiece 3.
- the sanding belt 2 has a flexible carrier 4 and an abrasive layer 5 with hard material 5 ' (see Fig. 2).
- a sanding belt drive 6 is provided which the Grinding belt 2 drives continuously during a workpiece machining.
- the Sanding belt 2 is stretched over a tensioning device 7.
- the Tool carrier 1 has a machining head 8 with two to each other spaced Bandumlenkept 9, which has a working area L of the Limit machining head 8 and in the embodiment as pulleys are formed.
- the abrasive belt 2 is guided over the pulleys 9 and runs in the working area L on the peripheral surface of the Workpiece 3 over.
- the tool carrier 1 follows the revolution of the rotating workpiece 3.
- two parallel in the embodiment provided to the workpiece 3 bearing shafts 10, 10 ' whose shape the workpiece 3 corresponds.
- the bearing shafts 10, 10 ' rotate synchronously and in phase with the workpiece 3 about its axes B, B '.
- the tool carrier 1 is on peripheral surfaces 11, 11 'of the bearing shafts 10, 10' are mounted, which to processing peripheral surface of the workpiece 3 correspond.
- the circulating abrasive belt 2 is outside of the working area L a Associated device 12 for dressing the abrasive layer 5, which a during workpiece machining against the abrasive layer 5 of the a belt speed adapted to the workpiece machining Abrasive belt 2 undeliverable dressing tool 13 has.
- the Dressing tool 13 provides an effective balance of a through the Workpiece machining caused uneven wear of the Abrasive layer 5. This results in a consistently uniform surface ensures the abrasive layer 5, so that even at long Service life of the belt 2 workpieces with consistently high Surface quality can be produced. Because the replacement intervals of the abrasive belt 2 are thus significantly extendable, thereby considerable time and Cost savings possible.
- the hard material 5 is made Diamond.
- diamond-free Hard materials such as.
- the dressing tool 13 consists of a dressing roller. This has its own, not shown drive, which the Dressing roller 13 against the sanding belt running direction drives. This is a Relative speed between dressing roll 13 and sanding belt 2 achievable, higher than the speed adjusted to workpiece machining of the abrasive belt 2 is.
- the dressing roller 13 and the abrasive belt. 2 are driven.
- a braking is expediently the dressing roller 13 is provided to the desired relative speed between abrasive belt 2 and dressing roll 13 during dressing guarantee.
- the device 12 for dressing the abrasive belt 2 has a process-controlled feed drive not shown for the Feed movement of the dressing roller 13. The delivery movement can via a timed timing or by the number of already be dependent on processed workpieces.
- the machining head 8 surrounds the circumferential surface to be machined bifurcated so that the abrasive belt 2 wraps around the workpiece 3 partially. As a result, there is a large-area contact between the workpiece 3 and Sanding belt 2.
- the machining head 8 has adjustable relative to each other Fork arms 14, on which the working area L delimiting Deflection rollers 9 are arranged. This allows a targeted adjustment of the Wrap angle ⁇ . In particular, this can also be a very large Umschlingungswinkel be set ⁇ , in the embodiment more than 180 °. From Fig. 1 it can be seen that an endless Supporting band 15 is provided, which in the working area L parallel to the grinding belt 2 is stretched and in this area L the back of the sanding belt. 2 supported.
- the support band 15 is here also on the fork arms 14 arranged deflection rollers 9 out.
- the support band 15 is over a separate second clamping device 16 stretched and a separate second support belt drive 17 driven.
- the operation of the two drives 6, 17 is coordinated so that the support band 15 and the Sanding belt 2 in the same direction at the same speed.
- the preferably made of metal support band causes a Strain relief of the sanding belt, so that even sanding belts with lesser Tensile strength can be used.
- the support band 15 may alternatively also be driven by the sanding belt drive 6 or even stand firmly against the sanding belt 2.
- Fig. 2 shows the section A-A of Fig. 1.
- the sectional view is to It can be seen that the dressing roller 13 transversely to the strip running direction - in the FIG. 2 shown exaggerated - arcuate contour 18, the at Dressing of the abrasive belt 2 is transferred to the abrasive layer 5.
- the crown h lies in the Embodiment in the range of 3 to 10 microns. Such a crown is For example, in some modern highly stressed waves required.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
Description
Werkzeugträger,
endlosem Schleifband, das einen flexiblen Träger und eine Schleifmittelschicht mit Hartstoff aufweist zur Bearbeitung eines um seine Rotationsachse rotierenden Werkstückes,
einem Schleifbandantrieb, welcher das Schleifband während einer Werkstückbearbeitung kontinuierlich antreibt, und
einer Spannvorrichtung für das Schleifband,
wobei der Werkzeugträger einen Bearbeitungskopf mit zwei zueinander beabstandeten Bandumlenkungen aufweist, die einen Arbeitsbereich des Bearbeitungskopfes begrenzen, und wobei das Schleifband über die Bandumlenkungen geführt ist und im Arbeitsbereich an der zu bearbeitenden Umfangsfläche des Werkstückes vorbeiläuft.
- Fig. 1
- eine Seitenansicht einer erfindungsgemäßen Vorrichtung zur Finishbearbeitung von Wellen und
- Fig. 2
- den Schnitt A-A in Fig. 1.
Claims (10)
- Vorrichtung zur Finishbearbeitung von Wellen, insbesondere von Kurbelund Nockenwellen, mit
Werkzeugträger (1),
endlosem Schleifband (2) das einen flexiblen Träger (4) und eine Schleifmittelschicht 5) mit Hartstoff (5') aufweist, zur Bearbeitung eines um seine Rotationsachse (A) rotierenden Werkstückes (3),
einem Schleifbandantrieb (6), welcher das Schleifband (2) während einer Werkstückbearbeitung kontinuierlich antreibt, und
einer Spannvorrichtung (7) für das Schleifband (2),
wobei der Werkzeugträger (1) einen Bearbeitungskopf (8) mit zwei zueinander beabstandeten Bandumlenkungen (9) aufweist, die einen Arbeitsbereich (L) des Bearbeitungskopfes (8) begrenzen und wobei das Schleifband (2) über die Bandumlenkungen (9) geführt ist und im Arbeitsbereich (L) an der zu bearbeitenden Umfangsfläche des Werkstückes (3) vorbeiläuft, dadurch gekennzeichnet, dass dem umlaufenden Schleifband (2) außerhalb des Arbeitsbereiches (L) eine Vorrichtung (12) zum Abrichten der Schleifmittelschicht (5) zugeordnet ist, welche ein während der Werkstückbearbeitung gegen die Schleifmittelschicht (5) des mit einer auf die Werkstückbearbeitung abgestimmten Bandgeschwindigkeit umlaufenden Schleifbandes (2) zustellbares Abrichtwerkzeug (13) aufweist. - Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass das Abrichtwerkzeug (13) aus einer Abrichtrolle besteht.
- Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das Abrichtwerkzeug (13) eine strukturierte Oberfläche aufweist, die der Schleifmittelschicht (5) während des Kontaktes mit dem Abrichtwerkzeug (13) eine entsprechende Prägung verleiht.
- Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass das Abrichtwerkzeug (13) quer zur Bandlaufrichtung eine aus mindestens einem Bogen bestehende Kontur (18) aufweist, die beim Abrichten des Schleifbandes (2) auf die Schleifmittelschicht (5) übertragen wird.
- Vorrichtung nach Anspruch 1 bis 4, dadurch gekennzeichnet, dass die Vorrichtung (12) zum Abrichten des Schleifbandes (2) einen prozessgesteuerten Zustellantrieb für die Zustellbewegung des Abrichtwerkzeuges (13) aufweist.
- Vorrichtung nach Anspruch 1 bis 5, dadurch gekennzeichnet, dass der Bearbeitungskopf (8) die zu bearbeitende Umfangsfläche gabelförmig so umgreift, dass das Schleifband (2) das Werkstück (3) teilweise umschlingt.
- Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, dass der Bearbeitungskopf (8) relativ zueinander verstellbare Gabelarme (14) aufweist, an denen die den Arbeitsbereich (L) begrenzenden Bandumlenkungen (9) angeordnet sind.
- Vorrichtung nach Anspruch 1 bis 7, dadurch gekennzeichnet, dass ein endloses Stützband (15) vorgesehen ist, das im Arbeitsbereich (L) parallel zum Schleifband (2) gespannt ist und in diesem Bereich (L) die Rückseite des Schleifbandes (2) abstützt.
- Verfahren zur Finishbearbeitung von Wellen, insbesondere von Kurbelund Nockenwellen, wobei eine Werkstückfläche eines um seine Rotationsachse rotierenden Werkstückes mit Hilfe eines kontinuierlich angetriebenen, an der Werkstückfläche vorbeilaufenden endlosen Schleifbandes das einen flexiblen Träger und eine Schleifmittelschicht mit Hartstoff aufweist, bearbeitet wird, dadurch gekennzeichnet, dass während der Werkstückbearbeitung die Schleifmittelschicht mit Hilfe eines gegen das Schleifband zustellbaren Abrichtwerkzeuges abgerichtet wird, um eine durch die Werkstückbearbeitung hervorgerufene ungleichmäßige Abnutzung des Schleifbandes auszugleichen.
- Verfahren nach Anspruch 9, dadurch gekennzeichnet, dass das Schleifband während des Abrichtvorganges eine Prägung quer zur Bandlaufrichtung durch eine entsprechende Formgebung des Abrichtwerkzeuges erhält.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2003142137 DE10342137B4 (de) | 2003-09-12 | 2003-09-12 | Vorrichtung und Verfahren zur Finishbearbeitung von Wellen, insbesondere von Kurbel- und Nockenwellen |
DE10342137 | 2003-09-12 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1514642A2 true EP1514642A2 (de) | 2005-03-16 |
EP1514642A3 EP1514642A3 (de) | 2006-01-18 |
Family
ID=34129776
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04020720A Withdrawn EP1514642A3 (de) | 2003-09-12 | 2004-09-01 | Vorrichtung und Verfahren zur Finishbearbeitung von Wellen, insbesondere von Kurbel- und Nockenwellen |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1514642A3 (de) |
DE (1) | DE10342137B4 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1514640A2 (de) * | 2003-09-12 | 2005-03-16 | Thielenhaus Technologies GmbH | Verfahren und Vorrichtung zur Finishbearbeitung von Wellen, insbesondere von Kurbel- und Nockenwellen |
DE102014211937B3 (de) * | 2014-06-23 | 2015-10-22 | Nagel Maschinen- Und Werkzeugfabrik Gmbh | Verfahren und Vorrichtung zur Finish-Bearbeitung von Umfangsflächen rotationssymmetrischer Werkstückabschnitte |
DE102014211938A1 (de) | 2014-06-23 | 2015-12-24 | Nagel Maschinen- Und Werkzeugfabrik Gmbh | Finish-Werkzeug |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006052829A1 (de) | 2006-11-09 | 2008-05-15 | Thielenhaus Technologies Gmbh | Verfahren zur Bandfinishbearbeitung von Werkstückenumfangsflächen |
CN114131476B (zh) * | 2021-12-10 | 2023-05-23 | 浙江海洋大学 | 一种机械手多工位砂带抛光机 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4330800A1 (de) * | 1993-09-10 | 1994-02-17 | Nomoco Maschinenbau Gebrueder | Verfahren und Vorrichtung zum spitzenlosen Schleifen von runden, zylinderförmigen Werkstücken |
DE4326307A1 (de) * | 1993-08-05 | 1995-02-09 | Schaudt Maschinenbau Gmbh | Schleifmaschine |
US5951377A (en) * | 1996-08-01 | 1999-09-14 | Radtec, Inc. | Microfinishing machine |
AT4931U1 (de) * | 2001-01-25 | 2002-01-25 | Hammerschmid Johann | Bandschleifmaschine |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE844420C (de) * | 1951-01-06 | 1952-07-21 | Ernst Ebner | Bandschleifmaschine |
-
2003
- 2003-09-12 DE DE2003142137 patent/DE10342137B4/de not_active Expired - Fee Related
-
2004
- 2004-09-01 EP EP04020720A patent/EP1514642A3/de not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4326307A1 (de) * | 1993-08-05 | 1995-02-09 | Schaudt Maschinenbau Gmbh | Schleifmaschine |
DE4330800A1 (de) * | 1993-09-10 | 1994-02-17 | Nomoco Maschinenbau Gebrueder | Verfahren und Vorrichtung zum spitzenlosen Schleifen von runden, zylinderförmigen Werkstücken |
US5951377A (en) * | 1996-08-01 | 1999-09-14 | Radtec, Inc. | Microfinishing machine |
AT4931U1 (de) * | 2001-01-25 | 2002-01-25 | Hammerschmid Johann | Bandschleifmaschine |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1514640A2 (de) * | 2003-09-12 | 2005-03-16 | Thielenhaus Technologies GmbH | Verfahren und Vorrichtung zur Finishbearbeitung von Wellen, insbesondere von Kurbel- und Nockenwellen |
EP1514640A3 (de) * | 2003-09-12 | 2006-03-01 | Thielenhaus Technologies GmbH | Verfahren und Vorrichtung zur Finishbearbeitung von Wellen, insbesondere von Kurbel- und Nockenwellen |
DE102014211937B3 (de) * | 2014-06-23 | 2015-10-22 | Nagel Maschinen- Und Werkzeugfabrik Gmbh | Verfahren und Vorrichtung zur Finish-Bearbeitung von Umfangsflächen rotationssymmetrischer Werkstückabschnitte |
DE102014211938A1 (de) | 2014-06-23 | 2015-12-24 | Nagel Maschinen- Und Werkzeugfabrik Gmbh | Finish-Werkzeug |
WO2015197449A1 (de) | 2014-06-23 | 2015-12-30 | Nagel Maschinen- Und Werkzeugfabrik Gmbh | Finish-werkzeug |
DE102014211937C5 (de) * | 2014-06-23 | 2016-06-02 | Nagel Maschinen- Und Werkzeugfabrik Gmbh | Verfahren und Vorrichtung zur Finish-Bearbeitung von Umfangsflächen rotationssymmetrischer Werkstückabschnitte |
EP3157708B1 (de) | 2014-06-23 | 2019-02-27 | Nagel Maschinen- und Werkzeugfabrik GmbH | Verfahren und vorrichtung zur finish-bearbeitung von umfangsflächen rotationssymmetrischer werkstückabschnitte |
Also Published As
Publication number | Publication date |
---|---|
DE10342137B4 (de) | 2010-07-29 |
EP1514642A3 (de) | 2006-01-18 |
DE10342137A1 (de) | 2005-04-07 |
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