EP0802018B1 - Vorrichtung zum Schleifen einer Stirnfläche, insbesondere einer Ringfläche, am Rand einer Werkstück-Bohrung - Google Patents
Vorrichtung zum Schleifen einer Stirnfläche, insbesondere einer Ringfläche, am Rand einer Werkstück-Bohrung Download PDFInfo
- Publication number
- EP0802018B1 EP0802018B1 EP97106045A EP97106045A EP0802018B1 EP 0802018 B1 EP0802018 B1 EP 0802018B1 EP 97106045 A EP97106045 A EP 97106045A EP 97106045 A EP97106045 A EP 97106045A EP 0802018 B1 EP0802018 B1 EP 0802018B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- shaft
- accordance
- grinding
- guide pin
- grinding tool
- 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.)
- Expired - Lifetime
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
- B24B33/00—Honing machines or devices; Accessories therefor
- B24B33/055—Honing machines or devices; Accessories therefor designed for working plane surfaces
-
- 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
- B24B15/00—Machines or devices designed for grinding seat surfaces; Accessories therefor
- B24B15/02—Machines or devices designed for grinding seat surfaces; Accessories therefor in valve housings
-
- 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
- B24B33/00—Honing machines or devices; Accessories therefor
- B24B33/02—Honing machines or devices; Accessories therefor designed for working internal surfaces of revolution, e.g. of cylindrical or conical shapes
- B24B33/025—Internal surface of conical shape
Definitions
- the invention relates to a grinding device according to the Preamble of claim 1.
- a known device of this type (DE 44 41 623 A1) is used for fine machining one at the edge of the workpiece bore ground bevel, used as a sealing seat for a valve needle serves.
- Such valve bores are, for example provided in injection pumps for internal combustion engines. she have a very small diameter of only a few millimeters and must be processed with high precision.
- the edge the end face of the hole forming or surrounding it Workpiece must also be machined precisely; when sanding or when machining a chamfer care must also be taken that the frustoconical Surface is exactly concentric to the axis of the hole.
- the well-known Device for surface processing of the chamfer a conical grinding surface on the rotating around the axis of the hole driven grinding tool.
- a lapping machine is described in EP 0 399 088 A2.
- This machine has an eccentric shaft that based on the longitudinal axis of the main shaft is arranged. This axis offset results in a Eccentricity of the lower shaft, so that when the disc arranged at the lower end of the shaft an eccentric path in relation to the axis of rotation, executes.
- Planhon devices are also known in which the Honing tool with its abrasive coating on the one to be machined Surface is moved. These devices are but because of their relatively large dimensions in confined spaces Space cannot be used.
- the invention has for its object the device with the smallest possible space requirement so that also small end faces, especially ring faces on the edge of one Drilled or machined hole with very high accuracy can be.
- the periodic shifting of the grinding tool across The axis of the guide pin enables surface processing the face of the workpiece and also the Create a chamfer on the edge of the hole with a flat Grinding surface, so its shape through wear and dressing is not changed, so that in series production a very high accuracy and quality of the finished surface can be achieved.
- the shifting movement can be narrow Space can be realized, resulting in a small size of the entire device.
- the grinding tool expediently driven in rotation via a drive shaft, for example at 2000 to 6000 rpm
- the periodic shift generated by an eccentric can be, which is preferably part of a driven Hollow shaft with an eccentric bore.
- the hollow shaft in the opposite direction to the drive shaft with a Speed driven from 500 to 2000 rpm.
- the way of The transverse displacement is dimensioned such that the grinding surface has the end face to be machined completely, whereby the distance when processing the surrounding area very thin bores is, for example, 0.5 to 3 mm.
- the device according to FIGS. 1 to 3 has a grinding tool 1, which is designed as a honing stone 3 with an abrasive coating 23 and is attached to a bracket 22.
- the bracket 22 is a cylindrical slide in which parallel to its axis the honing stone 3 is inserted, and in a through opening 21 of a shaft 17 slidably is arranged.
- the shaft 17 is in one piece with a guide pin 7 executed in the finished honed hole 5 of a workpiece 6 is immersed.
- the workpiece 6 is known Way in a holder 8 with gimbal Suspension of the workpiece clamping device arranged, see above that it is on the axis by means of the guide pin 7 2 is aligned, which coincides with the axis of the shaft 17.
- the shaft 17 forms the inner link of a telescopic drive shaft, whose outer tube 10 in a hollow shaft 9 is supported by bearings 11 and 12.
- the shaft 17 is with the outer tube 10 in the direction of rotation of the drive shaft 10, 17 positively connected via a cross bolt 19, which penetrates the shaft 17 and with its ends in one Longitudinal slot 18 of the outer tube 10 is located.
- One inside of the outer tube compression spring 20 loads the Shaft 17 in the direction of the workpiece 6; their bias is adjustable by means of an adjusting screw 30, which in the upper end of the outer tube 10 is inserted.
- the shaft 17 is in the outer tube 10 under load of the compression spring 20th axially displaceable, the displacement path through the Length of the longitudinal slot 18 is limited.
- the drive shaft 10, 17 and the hollow shaft 9 are in opposite directions driven.
- the outer tube 10 of the drive shaft for this purpose at the upper end an external toothing 15, and this upper end lies within a cup-shaped section 13 of the hollow shaft 9, which has an internal toothing there 14 has.
- a drive pinion engages in both toothings 14 and 15 16 a.
- the hollow shaft 9 has a to the common axis 2 of the Shafts and the guide pin eccentric bore 24 inside of its lower section 9a, which is an eccentric forms. 2 and 3 show, the cylindrical Slider 22 in the through hole 21 of the shaft 17 arranged so that it with its two convex End faces 25 flat on the wall 26 of the eccentric bore 24 rests and is thus supported there slidingly.
- the through opening 21 is through one into the guide pin 7 reaching slot 21a keyhole-shaped designed, the slider 22 on the cylindrical wall the passage opening 21 slidably abuts the Honing stone 3 lies within the slot 21a (Fig. 2).
- the Area of the guide pin 7 protrudes the honing stone 3 with the Grinding pad 23 at both ends of the slot 21a after outside (Fig. 1).
- the abrasive coating 23 can therefore with his Grinding surface 23a, the end face 4 to be machined Paint over workpiece 6 completely.
- the hollow shaft 9 is dash-dotted by means of bearings 27 indicated device carrier 28 stored, the on - not shown - guides axially in the direction of the workpiece 6 is deliverable.
- the carrier 28 and the Holding device 8 aligned so that the guide pin 7 is coaxial to the workpiece bore 5.
- the Carrier 28 is then advanced in the direction of workpiece 6, the guide pin 7 in the workpiece bore 5 dips, which are pre-processed by honing or finished is.
- the gimbal is aimed Workpiece 6 exactly on axis 2, which then with the bore axis coincides.
- the guide pin 7 can be coated with a wear-resistant covering or also Have guide strips 29, which are made of wear-resistant Material, such as hard metal.
- the delivery can depend on the route and in a known manner can also be controlled depending on the force, one gradual or continuous delivery is possible. Shortly before the abrasive coating 23 of the honing stone 3 with the ring surface 4 of the workpiece comes into contact, the opposite Rotational movements of the drive shaft 10, 17 and Hollow shaft 9 initiated via the drive pinion 16. Therefor the delivery movement can be slowed down or briefly interrupted become. With further delivery, the Grinding surface 23a of the abrasive coating 23 on the workpiece surface 4, which then by rotating movement and at the same time about radial, periodic movements of the Tool 1 is processed.
- the rotation is from the drive shaft 10, 17 generated and the displacement movement of the eccentric 9a of the hollow shaft 9, the slide 22 with its end faces 25 on the wall 26 of the eccentric bore 24 slides and together with the honing stone 3 in the Through opening 21, 21a periodically in opposite directions radially to the axis 2 is moved.
- the grinding surface 23a sweeps over the entire workpiece ring surface 4th
- the delivery movement is stopped as soon as the Grinding surface 23 of the honing stone 3 under the pressure of the spring 20 with a predetermined machining force on the workpiece surface 4 is present.
- the machining force to be specified can be set by specifying the delivery route, or - at continuous infeed - by adjusting the spring force by means of the set screw 30. To switch off the infeed when the specified gauge block is reached known ones Path and / or force measuring devices are provided his.
- a grinding tool 1 ' is provided with which at the edge of the workpiece bore 5, a chamfer in the form of a conical ring surface 4 'is ground.
- the chamfer 4 ' can by means of the grinding tool 1 'by removing the edge of the bore be generated; but it can also be the surface of an existing, previously created chamfer Finished dimensionally and precisely concentric to axis 2 become.
- the grinding tool 1 ' consists of one with an abrasive coating 23 'provided honing stone 3', which corresponds to the 2 is inserted into a slide 22 '.
- a through opening 21 'of the shaft 17 extends also up to the guide pin 7, but runs with its central axis 21A of the upper region obliquely to the axis 2 of the guide pin 7.
- the cylindrical slide 22 ' is accordingly arranged obliquely in the shaft 17 so that its convex end faces 25 'in axial section accordingly are beveled.
- the central axis of the slider 22 ' coincides with the axis 21A of the through opening, and the grinding surface 23a 'of the grinding pad 23' lies parallel to this axis 21A.
- the angle between the Grinding surface 23a 'and axis 2 correspond to the target angle the bevel 4 '.
- the honing stone 3 ' is dimensioned in this way and arranged on the slide 22 'that they are partially up extends into the workpiece bore 5 and during the and sliding movements of the tool 1 'the conical ring surface or chamfer 4 'completely swept.
- the turning and Sliding movements are as described using the drive shaft and the outer hollow shaft 9 generated.
Description
- Fig. 1
- die Schleifvorrichtung mit einer zugehörigen Haltevorrichtung für das Werkstück im Axialschnitt,
- Fig. 2
- einen Schnitt nach II-II in Fig. 1,
- Fig. 3
- einen Schnitt nach III-III in Fig. 2,
- Fig. 4
- einen ausschnittsweisen Axialschnitt durch die Vorrichtung und ein zu bearbeitendes Werkstück mit einer anderen Ausbildung und Lagerung des Werkzeuges in schematischer Darstellung.
Claims (15)
- Vorrichtung zum Schleifen einer Stirnfläche, insbesondere einer Ringfläche, am Rand einer Werkstück-Bohrung, mit einem angetriebenen Schleifwerkzeug (1), dessen Schleiffläche winklig zur Achse (2) eines Führungszapfens (7) ausgerichtet ist, der zum paßgenauen Eintauchen in die bearbeitete, beispielsweise gehonte Bohrung dimensioniert und mit dem Schleifwerkzeug (1) verbunden ist,
dadurch gekennzeichnet, daß das Schleifwerkzeug (1) durch mindestens eine Honleiste (3) gebildet ist, welche in einer Durchgangsöffnung (21) des Schaftes (17) angeordnet ist und mittels eines Exzenters (9a) quer zur Achse (2) des Führungszapfens (7) periodisch verschiebbar ist. - Vorrichtung nach Anspruch 1,
dadurch gekennzeichnet, daß der Führungszapfen (7) fluchtend zu einer Antriebswelle (10, 17) angeordnet ist, über die das Schleifwerkzeug (1) rotierend angetrieben ist. - Vorrichtung nach Anspruch 1 oder 2,
dadurch gekennzeichnet, daß der Exzenter (9a) Bestandteil einer angetriebenen Hohlwelle (9) mit Exzenterbohrung (24) ist, in der eine Halterung (22) des Schleifwerkzeuges (1) quer zur Achse der Hohlwelle (9) verschieblich gelagert ist. - Vorrichtung nach einem der Ansprüche 2 oder 3,
dadurch gekennzeichnet, daß der Schaft (17) das Innenglied der als Teleskopwelle ausgeführten Antriebswelle (10, 17) ist, deren Außenrohr (10) angetrieben ist, wobei der Schaft (17) in dem Außenrohr (10) der Antriebswelle (10, 17) begrenzt axial verschieblich ist. - Vorrichtung nach Anspruch 4,
dadurch gekennzeichnet, daß der Schaft (17) in einem Längsschlitz (18) des Außenrohres (10) der Antriebswelle (10, 17) mittels eines Querbolzens (19) geführt ist, der den Schaft (17) durchsetzt und die Formschlußverbindung zwischen Schaft (17) und Außenrohr (10) in Drehrichtung der Antriebswelle (10, 17) herstellt. - Vorrichtung nach einem der Ansprüche 1 bis 5,
dadurch gekennzeichnet,daß das Schleifwerkzeug (1) in Richtung auf das Werkstück (6) zustellbar ist. - Vorrichtung nach einem der Ansprüche 1 bis 6,
dadurch gekennzeichnet, daß der Schaft (17) in Richtung auf das Werkstück (6) federbelastet ist, vorzugsweise über eine Druckfeder (20), deren Vorspannung mittels einer Stellschraube (30) einstellbar ist. - Vorrichtung nach einem der Ansprüche 1 bis 7,
dadurch gekennzeichnet, daß der Schaft (10) und der Führungszapfen (7) einstückig ausgeführt sind. - Vorrichtung nach einem der Ansprüche 3 bis 8,
dadurch gekennzeichnet, daß die Halterung (22) des Schleifwerkzeuges (1) ein vorzugsweise zylindrischer Schieber ist, dessen Stirnflächen (25) konvex ausgebildet und an der Wandung (26) der Exzenterbohrung (24) gleitend abgestützt sind. - Vorrichtung nach einem der Ansprüche 1 bis 9,
dadurch gekennzeichnet, daß das die mindestens eine Honleiste (3) umfassende Schleifwerkzeug (1) ein Planhonwerkzeug ist, wobei die Honleiste (3) einen die Schleiffläche (23a) bildenden Schleifbelag (23) aufweist. - Vorrichtung nach Anspruch 10,
dadurch gekennzeichnet, daß die Durchgangsöffnung (21) des Schaftes (17) zur Aufnahme der Honleiste (3) und deren Halterung (22) etwa schlüssellochförmig mit einem Schlitz (21a) ausgebildet ist, der sich bis in den Führungszapfen (7) erstreckt, und aus dem die Honleiste (3) mit ihrem Schleifbelag (23) an mindestens einem seitlichen Schlitzende übersteht. - Vorrichtung nach einem der Ansprüche 2 bis 10,
dadurch gekennzeichnet, daß die Antriebswelle (10, 17) in der die Exzenterbohrung (24) aufweisenden Hohlwelle (9) gelagert und gegensinnig zu ihr angetrieben ist, wobei vorzugsweise die Antriebswelle (10, 17) einen Abschnitt mit Außenverzahnung (15) aufweist, der innerhalb eines Abschnittes (13) der Hohlwelle (9) mit Innenverzahnung (14) liegt, und daß in beide Verzahnungen (14 und 15) ein Antriebsritzel (16) eingreift. - Vorrichtung nach einem der Ansprüche 1 bis 12,
dadurch gekennzeichnet, daß der Schleifvorrichtung eine Haltevorrichtung (8) mit kardanisch aufgehängter Spannvorrichtung für das Werkstück (6) zugeordnet ist. - Vorrichtung nach einem der Ansprüche 1 bis 13,
dadurch gekennzeichnet, daß der Führungszapfen (7) mindestens eine Führungsleiste (29) zur Abstützung an der Wandung der Werkstück-Bohrung aufweist. - Vorrichtung nach einem der Ansprüche 1 bis 14,
dadurch gekennzeichnet, daß das Schleifwerkzeug (1) mit seiner planen Schleiffläche (23a) senkrecht zur Achse (2) des Führungszapfens (7) verschiebbar ist oder das Schleifwerkzeug (1) mit seiner planen Schleiffläche (23a) zur Achse (2) des Führungszapfens (7) in einem Winkel verschiebbar ist, der dem Sollwinkel einer Fase an der Kante der Werkstück-Bohrung entspricht.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29607203U | 1996-04-20 | ||
DE29607203U DE29607203U1 (de) | 1996-04-20 | 1996-04-20 | Vorrichtung zum Schleifen einer Stirnfläche, insbesondere einer Ringfläche, am Rand einer Werkstück-Bohrung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0802018A1 EP0802018A1 (de) | 1997-10-22 |
EP0802018B1 true EP0802018B1 (de) | 2000-07-19 |
Family
ID=8022876
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97106045A Expired - Lifetime EP0802018B1 (de) | 1996-04-20 | 1997-04-12 | Vorrichtung zum Schleifen einer Stirnfläche, insbesondere einer Ringfläche, am Rand einer Werkstück-Bohrung |
Country Status (4)
Country | Link |
---|---|
US (1) | US6267653B1 (de) |
EP (1) | EP0802018B1 (de) |
JP (1) | JP3749777B2 (de) |
DE (2) | DE29607203U1 (de) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE512250C2 (sv) * | 1998-07-10 | 2000-02-21 | Lidkoeping Machine Tools Ab | Abraderande maskin för bearbetning av ändytan på ett arbetsstycke |
PL192478B1 (pl) * | 1999-07-29 | 2006-10-31 | Prochniewicz Zbigniew | Głowica nożowa, zwłaszcza do obróbki gniazd zaworowych w głowicach silników spalinowych |
DE102006012516A1 (de) * | 2006-03-18 | 2007-09-20 | Bayerische Motoren Werke Ag | Werkzeug zur Bearbeitung einer Dichtfase |
JP4990643B2 (ja) * | 2007-02-13 | 2012-08-01 | トーヨーエイテック株式会社 | ホーニング加工装置 |
US7861738B2 (en) * | 2008-03-04 | 2011-01-04 | Caterpillar Inc. | Remanufactured machine component and remanufacturing process |
ES2332568B1 (es) * | 2008-07-23 | 2011-04-18 | Airbus Operations, S.L. | Sistema de repasado orbital post-afeitado de remaches. |
JP5078971B2 (ja) * | 2009-11-13 | 2012-11-21 | 株式会社フジエ | 表面加工作業工具ユニット |
CN102601730B (zh) * | 2012-03-28 | 2016-08-17 | 常州博瑞油泵油嘴有限公司 | 高压共轨喷油器针阀体精准定位夹紧装置 |
CN102601729B (zh) * | 2012-03-28 | 2016-08-17 | 常州博瑞油泵油嘴有限公司 | 针阀体类零件轴向弹性精准定位夹紧装置 |
CN115256211A (zh) * | 2022-08-17 | 2022-11-01 | 江苏威马悦达智能装备有限公司 | 一种阀体类零件专用珩磨刀具及其组装方法 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2226207A (en) * | 1938-07-22 | 1940-12-24 | Nomar Louis Nolan | Magazine rifle |
US2443489A (en) * | 1946-05-06 | 1948-06-15 | Weynand Paul | Grinding tool |
US2525119A (en) * | 1947-04-09 | 1950-10-10 | S & D Engineering Company | Valve-seat grinding means |
US2754642A (en) * | 1952-05-14 | 1956-07-17 | Soulet Armand | Carrier for grindwheels for the truing of valve seats |
US2809482A (en) * | 1953-04-10 | 1957-10-15 | Soulet Armand | Valve seat grinder |
US2769287A (en) * | 1955-08-31 | 1956-11-06 | Tobin Arp Mfg Company | Valve seat grinder |
US4467566A (en) * | 1982-01-29 | 1984-08-28 | Sunnen Products Company | Valve seat grinding device and tool for using same |
JPS59182055A (ja) * | 1983-03-31 | 1984-10-16 | Japan Electronic Control Syst Co Ltd | バルブシ−ト面の研削方法 |
DE3627541A1 (de) * | 1986-08-13 | 1988-02-18 | Gehring Gmbh Maschf | Schleifvorrichtung |
ES2017547A6 (es) * | 1989-05-24 | 1991-02-16 | Suarez Menendez Alfredo | Maquina de lapear. |
DE4441623C2 (de) * | 1993-12-15 | 1997-08-28 | Kopp Kadia Maschinenbau | Verfahren und Werkzeug zum Schleifen einer Fase am Anfang einer Bohrung |
-
1996
- 1996-04-20 DE DE29607203U patent/DE29607203U1/de not_active Expired - Lifetime
-
1997
- 1997-04-12 DE DE59702039T patent/DE59702039D1/de not_active Expired - Lifetime
- 1997-04-12 EP EP97106045A patent/EP0802018B1/de not_active Expired - Lifetime
- 1997-04-18 JP JP10198597A patent/JP3749777B2/ja not_active Expired - Fee Related
- 1997-04-18 US US08/844,706 patent/US6267653B1/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0802018A1 (de) | 1997-10-22 |
DE59702039D1 (de) | 2000-08-24 |
JP3749777B2 (ja) | 2006-03-01 |
DE29607203U1 (de) | 1997-08-14 |
US6267653B1 (en) | 2001-07-31 |
JPH1044010A (ja) | 1998-02-17 |
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