EP1277545A2 - Vorrichtung zur Finishbearbeitung von Werkstücken - Google Patents
Vorrichtung zur Finishbearbeitung von Werkstücken Download PDFInfo
- Publication number
- EP1277545A2 EP1277545A2 EP02012025A EP02012025A EP1277545A2 EP 1277545 A2 EP1277545 A2 EP 1277545A2 EP 02012025 A EP02012025 A EP 02012025A EP 02012025 A EP02012025 A EP 02012025A EP 1277545 A2 EP1277545 A2 EP 1277545A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- carriage
- force
- spindle unit
- measuring device
- motor spindle
- 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
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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
- 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
- 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 device for finish machining of workpieces that have a feed device with a carriage and an NC-controlled drive, one Motor spindle unit with a motor driven Tool spindle and a force measuring device for measuring the at a workpiece machining on the tool spindle having acting pressure.
- the invention is based on the object, a device to specify the finish machining of workpieces that force-controlled infeed movements with sensitively adjustable and precisely maintained pressure force allows.
- the object is in a device of the beginning described structure according to the invention achieved in that the motor spindle unit with resilient elements that the Take the weight of the motor spindle unit and only in Machining direction are movable on the carriage is stored and that the force measuring device between Connection elements on the motor spindle unit and on Carriage is arranged.
- the motor spindle unit is on leaf springs supported, transverse to the feed direction of the carriage are aligned.
- the vertically oriented, with short free length clamped leaf springs are in Feed direction of the spindle very flexible and flexible, so that pressure forces on the tool spindle sensitive and low-loss transfer to the force measuring device.
- the leaf springs can have great vertical forces as well as great Absorb shear forces. They are therefore suitable for support the motor spindle unit on the carriage, wherein additional, frictional guides not required are.
- the force measuring device is between the resilient Elements, e.g. B. at the bottom of the motor spindle unit between the leaf springs, arranged or can be attached to the in Working direction rear end of the motor spindle unit be connected.
- the force measuring device has a piezoelectric element as Force sensor on.
- the piezo element allows very precise Force measurements with extremely low deformations.
- the Use of other force sensors should not be excluded be.
- Strain gauges and magnetorestrictive sensors be used.
- the force sensor z. B. a piezoelectric element
- the force sensor is in accordance with a preferred embodiment of the invention between two Contact elements arranged, the spherical contact surfaces exhibit.
- the spherical contact surfaces are on annular or cup-shaped bearing surfaces on the Motor spindle unit and the carriage provided Supported connection elements. In this embodiment is ensures that the force sensor is clamped free of lateral forces is and acting on the tool spindle Low pressure transfer forces to the force sensor become. This is a bias of the force sensor appropriate.
- An advantageous embodiment of the force measuring device provides that the contact elements bolt-shaped, wherein a bolt a Tapped hole and the other bolt a longitudinal bore has, and that the bolt by a strain screw with defined preload force against the between the bolts arranged force sensor are braced. Furthermore, that is carriage-side connection element for the force measuring device expediently arranged on a support which is in Guide grooves of the carriage adjustable movable attached is.
- the device of the invention allows a very accurate and sensitive detection of the finish machining of workpiece surfaces acting on the work spindle Pressing forces.
- the force measurements are the NC control supplied to the feed drive.
- the technology executed high-resolution NC delivery of the Schlitten can be minimal forces, z. B. in the area between 0.1 N and 10 N defined on the workpiece bring.
- a high surface quality is achieved.
- Wegmesssystem can also the timing of the Zustellweges be detected metrologically. From the Measured values of the force measuring device and / or the position measuring system can control commands for process control in the Workpiece processing are derived.
- Fig. 1 Device For the basic structure of that shown in Fig. 1 Device include a feed device 1 with a Carriage 2 and an NC-controlled drive 3, a motor spindle unit 4 with a motor-driven tool spindle 5 and a force measuring device 6 for measuring the at a workpiece machining on the tool spindle 5 acting pressure force.
- the motor spindle unit 4 is with Leaf springs 7 mounted on the carriage 2, wherein the leaf springs 7 transversely to the feed direction of the carriage. 2 are aligned and the weight of the motor spindle unit. 4 take up.
- the force measuring device 6 is between Connection elements 8, 9 on the motor spindle unit 4 and on Carriage 2 arranged and with a piezoelectric element as Force sensor 10 equipped.
- the carriage 2 has one after prior art precision slide guide 11 and as a drive unit a rolling spindle 12 on. Other versions of the feed device 1, z. As a linear actuator, are not excluded.
- the clamping of the leaf springs 7 and the formation of the Force measuring device 6 is shown in FIGS. 2 and 3 shown in more detail.
- the force sensor 10 is between two contact elements arranged in the Embodiment as a bolt 13, 13 'are formed and Have contact surfaces 14.
- the contact surfaces 14 are on annular or cup-shaped bearing surfaces of the Supported connecting elements 8, 9.
- One of the bolts 13 has a threaded hole, the other bolt 13 'a Longitudinal bore on.
- a biasing force between 100 and 200 N.
- the carriage-side connection element 9 for the force measuring device 6 is arranged on a support 16, which with Grooves 17 in guide grooves 18 of the carriage. 2 is movably mounted.
- FIGS. 2 and 3 In the embodiment shown in FIGS. 2 and 3 is the force measuring device 6 to the in Working direction rear end of the motor spindle unit 4 connected.
- the two leaf springs 7, of which in the Fig. 2 and 3, only the rear leaf spring shown is, are with a short clamping length of support plates 19, 20 attached to the carriage 2 and at the Bottom of the motor spindle unit 4 are attached.
- Locking pins 21 prevent impermissibly large movements the motor spindle unit 4, when, for example, tool change or other assembly work.
- the force measuring device 6 shown in FIGS. 2 and 3 can also at the bottom of the motor spindle unit. 4 be arranged between the leaf springs 7, as shown in FIG Fig. 1 is shown schematically.
- the device according to the invention can additionally with a Weglyn messenger Schwarz 22 be equipped with the temporal course of Zustellweges metrologically detectable is. From the force measurements and measured values of the position measuring system can control commands for process control in the Workpiece processing are derived. That should be in below will be explained by way of examples. With the Bleed of the workpiece, so the touch of the workpiece through the tool, the force-controlled takes Feed rate of the feed rapidly, the temporal course of the curve with increasing erosion of Flatten workpiece surface. From the time course of Delivery route can be criteria for optimal guidance of a Finish machining process are derived. That's how it works temporal profile of the delivery route as a measure of the Surface quality of the workpiece are used.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- Machine Tool Sensing Apparatuses (AREA)
Abstract
Description
- Fig. 1
- eine Vorrichtung zur Finishbearbeitung von Werkstücken,
- Fig. 2
- eine weitere konstruktive Ausgestaltung der Vorrichtung, ausschnittsweise und in einer gegenüber Fig. 1 stark vergrößerten Darstellung,
- Fig. 3
- eine Draufsicht auf den in Fig. 2 dargestellten Gegenstand.
Claims (8)
- Vorrichtung zur Finishbearbeitung von Werkstücken, die eine Vorschubeinrichtung (1) mit einem Schlitten (2) und einem NC-gesteuerten Antrieb (3), eine Motorspindeleinheit (4) mit einer motorisch angetriebenen Werkzeugspindel (5) sowie eine Kraftmesseinrichtung (6) zum Messen der bei einer Werkstückbearbeitung auf die Werkstückspindel wirkenden Andrückkraft aufweist, dadurch gekennzeichnet, dass die Motorspindeleinheit (4) mit federnden Elementen, die das Gewicht der Motorspindeleinheit (4) aufnehmen und lediglich in Bearbeitungsrichtung beweglich sind, an dem Schlitten (2) gelagert ist und dass die Kraftmesseinrichtung (6) zwischen Anschlusselementen (8, 9) an der Motorspindeleinheit (4) und am Schlitten (2) angeordnet ist.
- Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Motorspindeleinheit (4) auf Blattfedern (7) abgestützt ist, die quer zur Vorschubrichtung des Schlittens (2) ausgerichtet sind.
- Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Kraftmesseinrichtung (6) zwischen den federnden Elementen angeordnet ist.
- Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Kraftmesseinrichtung (6) an das in Achsrichtung rückseitige Ende der Motorspindeleinheit (4) angeschlossen ist.
- Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Kraftmesseinrichtung (6) ein Piezoelement als Kraftsensor (10) aufweist.
- Vorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Kraftmesseinrichtung (6) einen zwischen zwei Kontaktelementen angeordneten Kraftsensor (10) aufweist, und dass die Kontaktelemente kugelförmige Kontaktflächen (14) aufweisen, die an ringförmigen oder schalenförmigen Lagerflächen der an der Motorspindeleinheit (4) und dem Schlitten (2) vorgesehenen Anschlusselementen (8, 9) abgestützt sind.
- Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, dass die Kontaktelemente als Bolzen (13, 13') ausgebildet sind, wobei ein Bolzen (13) eine Gewindebohrung und der andere Bolzen (13') eine Längsbohrung aufweist, und dass die Bolzen (13, 13') durch eine Dehnungsschraube (15) mit definierter Vorspannung gegen den zwischen den Bolzen (13, 13') angeordneten Kraftsensor (10) verspannt sind.
- Vorrichtung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass das schlittenseitige Anschlusselement (9) für die Kraftmesseinrichtung (6) an einem Träger (16) angeordnet ist, der in Führungsnuten (15) des Schlittens (2) verstellbeweglich befestigt ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10135139 | 2001-07-19 | ||
DE10135139A DE10135139C1 (de) | 2001-07-19 | 2001-07-19 | Vorrichtung zur Finishbearbeitung von Werkstücken |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1277545A2 true EP1277545A2 (de) | 2003-01-22 |
EP1277545A3 EP1277545A3 (de) | 2004-02-04 |
EP1277545B1 EP1277545B1 (de) | 2005-08-03 |
Family
ID=7692338
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02012025A Expired - Lifetime EP1277545B1 (de) | 2001-07-19 | 2002-05-31 | Vorrichtung zur Finishbearbeitung von Werkstücken |
Country Status (3)
Country | Link |
---|---|
US (1) | US6852005B2 (de) |
EP (1) | EP1277545B1 (de) |
DE (1) | DE10135139C1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT508789B1 (de) * | 2009-10-13 | 2013-01-15 | Wintersteiger Ag | Bearbeitungsvorrichtung für skier |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10357177A1 (de) * | 2003-12-06 | 2005-07-14 | Deere & Company, Moline | Schleifvorrichtung |
DE102004003203A1 (de) * | 2004-01-22 | 2005-08-11 | Robert Bosch Gmbh | Elektro-Handwerkzeug mit optimiertem Arbeitsbereich |
US7645180B2 (en) * | 2007-10-18 | 2010-01-12 | Thielenhaus Microfinish Corporation | Method for finishing a workpiece |
DE102012207448A1 (de) * | 2012-05-04 | 2013-11-07 | Nagel Maschinen- Und Werkzeugfabrik Gmbh | Finishverfahren und Finishvorrichtung zur Finishbearbeitung rotationssymmetrischer Werkstückabschnitte |
DE102014018541B4 (de) * | 2014-12-12 | 2016-07-28 | Hochschule Magdeburg-Stendal | Verfahren zur Finishbearbeitung von Werkstückoberflächen |
CN111775040A (zh) * | 2020-07-07 | 2020-10-16 | 宁波安杰森精密机械制造有限公司 | 一种复合型同步环内外径超精研机 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE571924C (de) * | 1927-01-21 | 1933-03-07 | Zh Rikagaku Kenkyujo Fa | Vorrichtung zur Bestimmung der Schneidkraft von Werkzeugen |
DE3430557A1 (de) * | 1984-08-20 | 1986-02-27 | P.-Gerhard Dr.-Ing. 3000 Hannover Althaus | Werkzeugmaschine zur spanabhebenden bearbeitung von werkstuecken, insbesondere innenschleifmaschine |
DE3930457A1 (de) * | 1989-09-12 | 1991-03-21 | Supfina Maschf Hentzen | Verfahren zur materialabhebenden fein- oder feinstbearbeitung |
US5072550A (en) * | 1989-11-27 | 1991-12-17 | Nippon Seiko Co., Ltd. | Grinding method and grinding machine with controlled grinding force |
DE19952805A1 (de) * | 1999-11-02 | 2000-08-31 | Thielenhaus Ernst Gmbh & Co Kg | Verfahren und Vorrichtung zur Finishbearbeitung von Werkstücken |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3675517A (en) * | 1970-02-23 | 1972-07-11 | Tekko Ikegai Kk | Adaptive and numerical control machine tool |
DE2206261A1 (de) * | 1971-02-12 | 1972-08-24 | Ahlstroem Oy | Vorrichtung zum Befestigen (Einspannen) und Vorspannen von Kreissägeblättern |
DE2633340C3 (de) * | 1976-07-24 | 1987-09-10 | Jagenberg AG, 4000 Düsseldorf | Schneidvorrichtung |
US5477845A (en) * | 1994-08-12 | 1995-12-26 | Zuzelo; Edward A. | Saw blade and mounting means for the same |
US6012372A (en) * | 1996-01-18 | 2000-01-11 | Laster; James E. | Adjustable arbor and cutting elements |
DE19738818B4 (de) * | 1997-09-05 | 2005-03-24 | Institut für Werkzeugmaschinen und Fertigungstechnik TU Braunschweig | Verfahren und Vorrichtung zur formgeregelten Feinstbearbeitung eines Werkstücks |
GB9725203D0 (en) * | 1997-11-29 | 1998-01-28 | Unova Uk Ltd | Improvements in and relating to grinding machines |
-
2001
- 2001-07-19 DE DE10135139A patent/DE10135139C1/de not_active Expired - Lifetime
-
2002
- 2002-05-31 EP EP02012025A patent/EP1277545B1/de not_active Expired - Lifetime
- 2002-07-08 US US10/190,786 patent/US6852005B2/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE571924C (de) * | 1927-01-21 | 1933-03-07 | Zh Rikagaku Kenkyujo Fa | Vorrichtung zur Bestimmung der Schneidkraft von Werkzeugen |
DE3430557A1 (de) * | 1984-08-20 | 1986-02-27 | P.-Gerhard Dr.-Ing. 3000 Hannover Althaus | Werkzeugmaschine zur spanabhebenden bearbeitung von werkstuecken, insbesondere innenschleifmaschine |
DE3930457A1 (de) * | 1989-09-12 | 1991-03-21 | Supfina Maschf Hentzen | Verfahren zur materialabhebenden fein- oder feinstbearbeitung |
US5072550A (en) * | 1989-11-27 | 1991-12-17 | Nippon Seiko Co., Ltd. | Grinding method and grinding machine with controlled grinding force |
DE19952805A1 (de) * | 1999-11-02 | 2000-08-31 | Thielenhaus Ernst Gmbh & Co Kg | Verfahren und Vorrichtung zur Finishbearbeitung von Werkstücken |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT508789B1 (de) * | 2009-10-13 | 2013-01-15 | Wintersteiger Ag | Bearbeitungsvorrichtung für skier |
Also Published As
Publication number | Publication date |
---|---|
DE10135139C1 (de) | 2002-11-21 |
EP1277545A3 (de) | 2004-02-04 |
EP1277545B1 (de) | 2005-08-03 |
US20030017793A1 (en) | 2003-01-23 |
US6852005B2 (en) | 2005-02-08 |
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