EP1514640B1 - Procédé et dispositif pour la finition d'arbres, en particulier de vilbrequins et d'arbres à cames - Google Patents

Procédé et dispositif pour la finition d'arbres, en particulier de vilbrequins et d'arbres à cames Download PDF

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Publication number
EP1514640B1
EP1514640B1 EP20040020483 EP04020483A EP1514640B1 EP 1514640 B1 EP1514640 B1 EP 1514640B1 EP 20040020483 EP20040020483 EP 20040020483 EP 04020483 A EP04020483 A EP 04020483A EP 1514640 B1 EP1514640 B1 EP 1514640B1
Authority
EP
European Patent Office
Prior art keywords
belt
workpiece
abrasive belt
abrasive
support
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
Application number
EP20040020483
Other languages
German (de)
English (en)
Other versions
EP1514640A3 (fr
EP1514640A2 (fr
Inventor
Horst Dipl.-Ing. Steinwender
Martin Dipl.-Ing. Wolters
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.)
Thielenhaus Technologies GmbH
Original Assignee
Thielenhaus Technologies GmbH
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 Thielenhaus Technologies GmbH filed Critical Thielenhaus Technologies GmbH
Publication of EP1514640A2 publication Critical patent/EP1514640A2/fr
Publication of EP1514640A3 publication Critical patent/EP1514640A3/fr
Application granted granted Critical
Publication of EP1514640B1 publication Critical patent/EP1514640B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
    • B24B21/02—Machines or devices using grinding or polishing belts; Accessories therefor for grinding rotationally symmetrical 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
    • B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
    • B24B21/18—Accessories
    • B24B21/20—Accessories for controlling or adjusting the tracking or the tension of the grinding belt
    • 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

Definitions

  • the invention relates to a method for finish machining of shafts, esp. Of crankshaft and camshaft, wherein a workpiece surface of a rotating about its axis workpiece is processed by means of a continuously driven endless abrasive belt and wherein the abrasive belt tensioned with a tensioning device and on its rear side in the area the workpiece surface is supported by an endless, in this area parallel to the grinding belt tensioned support belt, and a device according to the preamble of claim 5.
  • a method and a device with the features described above is known from the document US 5,951,377 known.
  • the known method takes place between the abrasive belt and the workpiece to be machined in a sectional plane perpendicular to the axis of rotation point-like contact.
  • the grinding belt is guided in the area of the workpiece surface to be machined between two deflection rollers, which also tension the support belt.
  • the invention has for its object to provide a method for finish machining of waves, esp. Of crankshafts and camshafts, which allows a uniform and targeted to the workpiece surface to be machined finishing machining.
  • the object is achieved by a method according to claim 1 and by a device according to claim 5.
  • the sanding belt and the support belt partially wrap around the workpiece so that the sanding belt lies flat against the circumference of the workpiece.
  • the support band is tensioned by means of a separate second tensioning device.
  • the grinding belt lies flat with uniform surface pressure on the workpiece surface to be machined on, wherein the contact pressure of the abrasive belt is selectively adjustable by the separate clamping device of the support band.
  • the sanding belt drive allows a targeted adjustment of the cutting speed on the surface to be machined. Esp. Even with small workpiece diameters, high cutting speeds, which are necessary to guarantee good finishing results, can be set. As a result, the method according to the invention enables finish machining of workpiece surfaces that meet high surface quality requirements.
  • the support band is made of metal and consequently of a high tensile modulus material.
  • the support belt can be tensioned machine-resistant.
  • the support belt is also driven continuously and with the same direction of movement as the abrasive belt.
  • the mechanical stress of the abrasive belt can be reduced, so that even sanding belts with low tensile strength can be used.
  • the speed of the support belt corresponds to the speed of the sanding belt.
  • the sanding belt lies with a wrap angle of more than 90 ° flat against the peripheral surface of the workpiece to be machined. This allows a very uniform machining of the workpiece.
  • the invention also provides a device according to claim 5 for carrying out the method. Preferred embodiments of this device are described in claims 6 to 8.
  • the Fig. 1 shows a device for finishing a shaft.
  • the apparatus comprises a tool carrier 1, an endless grinding belt 2 for finish machining of a workpiece 3 driven in rotation about its axis of rotation A, a grinding belt drive 4 which continuously drives the grinding belt 2 during workpiece machining, and a clamping device 5 for the grinding belt 2.
  • the tool carrier 1 has a machining head 6 with two mutually spaced band deflections 7, which limit a working area L of the machining head 6.
  • the band deflections 7 are formed as deflection rollers.
  • the grinding belt 2 is guided over the deflection rollers 7 and runs in the working area L past the peripheral surface of the workpiece 3 to be machined.
  • an endless support belt 8 is provided, which is stretched in the working area L of the machining head 6 parallel to the sanding belt 2 and in the working area L, the back of the sanding belt 2 is supported.
  • the machining head 6 surrounds the circumferential surface of the workpiece 3 to be machined such that the abrasive belt 2 acted upon at the rear by the support belt 8 partially wraps around the workpiece 3 and bears against the workpiece surface to be machined along a circumferential section.
  • the support belt 8 is tensioned by means of a separate second tensioning device 9. This second tensioning device 9 allows a targeted adjustment of the surface force exerted by the grinding belt 2 on the workpiece 3.
  • the mechanical stress of the abrasive belt 2 is considerably reduced by the support belt 8, so that no special requirements must be made of the tensile strength of the abrasive belt 2.
  • the sanding belt drive allows a specific adjustment of the cutting speed to the surface to be machined. The high cutting speeds required for achieving good finisher results are thus possible even with small workpiece diameters.
  • the support band 8 is made of metal. The support belt 8 is guided together with the sanding belt 2 over the work area L limiting pulleys 7 and is in the embodiment according to Fig. 1 also driven by the sanding belt drive 4.
  • the rectified speed of the two belts 2, 8 is identical, so that only a very small or no relative movement is present in the working area L between the grinding belt 2 and the support belt 8. As a result, a particularly low tensile stress of the abrasive belt 2 is ensured.
  • the two tensioning devices 5, 9, the two belts 2, 8 and the sanding belt drive 4 are arranged together on the workpiece carrier 1.
  • the tensioning devices 5, 9 have adjusting devices 10 for changing the belt lengths in the working area L.
  • the wrap angle ⁇ between the grinding belt 2 and the workpiece surface to be machined is more than 90 °. As a result, a very uniform workpiece machining is possible.
  • the tool carrier 1 is mounted on a feed carriage 11.
  • Fig. 2 shows a further embodiment of the device according to the invention.
  • the tool holder 1 follows here the orbital movement of the rotating about its axis of rotation
  • a workpiece 3 which is formed in Fig. 2 as a crankshaft.
  • the bearing shafts 12, 12 ' rotate synchronously and in phase with the workpiece 3 about their axes B, B'.
  • the tool carrier 1 is mounted on circumferential surfaces 13, 13 'of the bearing shafts 12, 12', which correspond to the surface of the workpiece 3 to be machined.
  • a separate support belt drive 14 is provided which drives the support belt 8 continuously.
  • the rectified belt speeds of abrasive belt 2 and support belt 8 are identical in this embodiment, too.
  • the tool carrier 1 When in the Fig. 3 1, the tool carrier 1 is pivotally mounted about a rotation axis C, which is aligned parallel to the axis of rotation A of the workpiece 3 and is arranged in a lying between the machining head 6 and the sanding belt drive 4 tool carrier area. Trained as a swivel arm tool carrier 1 can follow by an oscillating pivotal movement of the rotating workpiece surfaces of the crankshaft 3, wherein the contact area between the grinding belt 2 and workpiece 3 within the working area L during the orbital motion moves accordingly. Due to the simple construction and operation, this embodiment allows a particularly cost finishing machining of crankshafts and camshafts.
  • the distance of the sanding belt drive 4 from the axis of rotation C of the tool carrier 1 is set so that a substantial mass balance of the swinging about the rotation axis C masses is given. Furthermore, a mass 15 which is displaceably arranged along the tool carrier 1 is provided, which can be locked at a specific position of the tool carrier 1 before the start of processing, so that the desired contact force between the grinding belt 2 and the workpiece surface is ensured during processing. Also in this embodiment, the support belt 8 is also driven continuously with the same direction of movement and speed as the sanding belt 2 of the sanding belt drive 4.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)

Claims (8)

  1. Procédé pour l'usinage de finissage d'arbres, en particulier de vilebrequins et d'arbres à cames, une surface de pièce (3) tournant autour de son axe de rotation (A) étant traitée à l'aide d'une bande abrasive (2) sans fin entraînée de façon continue, la bande abrasive (2) étant tendue avec un dispositif de serrage (5) et étant soutenue sur sa face arrière dans la zone de la surface de pièce par une bande de soutien (8) sans fin, tendue dans cette zone parallèlement à la bande abrasive, caractérisé en ce que la bande abrasive (2) et la bande de soutien (8) entourent partiellement la pièce (3) de telle sorte que la bande abrasive (2) s'applique avec un angle d'enroulement (α) de plus de 90° à plat sur la surface périphérique à traiter de la pièce (3), qu'une bande de soutien (8) en métal est utilisée et que la bande de soutien (8) est commandée au moyen d'un second dispositif de serrage (5) séparé.
  2. Procédé selon la revendication 1, caractérisé en ce que la bande de soutien (8) est fixe pendant l'usinage de la surface de pièce.
  3. Procédé selon la revendication 1, caractérisé en ce que la bande de soutien (8) est entraînée également de façon continue et avec le même sens de déplacement que la bande abrasive (2).
  4. Procédé selon la revendication 3, caractérisé en ce que la vitesse de la bande de soutien (8) correspond à la vitesse de la bande abrasive (2).
  5. Dispositif avec porte-outil (1), la bande abrasive (2) sans fin pour l'usinage de finissage d'une pièce (3) entraînée de façon rotative autour de son axe de rotation (A),
    un entraînement de bande abrasive (4), qui entraîne de façon continue la bande abrasive (2) pendant un usinage de pièce et
    un dispositif de serrage (5) pour la bande abrasive (2),
    le porte-outil (1) présentant une tête d'usinage (6) avec deux déviations de bande (7) espacées l'une de l'autre, lesquelles délimitent une zone de travail (L) de la tête d'usinage (6), la bande abrasive (2) étant guidée par les déviations de bande (7) de la tête d'usinage (6) et une bande de soutien (8) sans fin étant prévue, laquelle est tendue dans la zone de travail (L) de la tête d'usinage (6) parallèlement à la bande abrasive (2) et soutient dans la zone de travail (L) la face arrière de la bande abrasive (2), caractérisé en ce que, pour la mise en oeuvre du procédé selon l'une quelconque des revendications 1 à 4, la tête d'usinage (6) entoure en forme de fourche la surface périphérique à usiner de la pièce (3) de telle sorte que la bande abrasive (2), sollicitée côté arrière par la bande de soutien (8), entoure partiellement la pièce (3) et s'applique avec un angle d'enroulement (α) de plus de 90° à plat sur la surface périphérique à usiner de la pièce (3), et en ce que la bande de soutien (8) est en métal et est tendue à l'aide d'un second dispositif de tension (9).
  6. Dispositif selon la revendication 5, caractérisé en ce que la bande de soutien (8) est guidée conjointement avec la bande abrasive (2) par les déviations de bande (6) délimitant la zone de travail (L) et est entraînée par l'entraînement de la bande abrasive (4) ou un entraînement séparé de bande de soutien (14).
  7. Dispositif selon la revendication 5 ou 6, caractérisé en ce que les dispositifs de serrage (5,9) et les entraînements (4, 14) pour la bande abrasive (2) et la bande de soutien (8) sont disposés sur le porte-outil (1).
  8. Dispositif selon l'une quelconque des revendications 5 à 7, caractérisé en ce que les dispositifs de serrage (5, 9) présentent des dispositifs de réglage (10) pour la modification des longueurs de bande dans la zone de travail (L).
EP20040020483 2003-09-12 2004-08-28 Procédé et dispositif pour la finition d'arbres, en particulier de vilbrequins et d'arbres à cames Expired - Lifetime EP1514640B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2003142134 DE10342134B4 (de) 2003-09-12 2003-09-12 Verfahren und Vorrichtung zur Finishbearbeitung von Kurbel- und Nockenwellen
DE10342134 2003-09-12

Publications (3)

Publication Number Publication Date
EP1514640A2 EP1514640A2 (fr) 2005-03-16
EP1514640A3 EP1514640A3 (fr) 2006-03-01
EP1514640B1 true EP1514640B1 (fr) 2010-05-26

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EP20040020483 Expired - Lifetime EP1514640B1 (fr) 2003-09-12 2004-08-28 Procédé et dispositif pour la finition d'arbres, en particulier de vilbrequins et d'arbres à cames

Country Status (2)

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EP (1) EP1514640B1 (fr)
DE (2) DE10342134B4 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010052311A1 (de) 2010-11-17 2012-05-24 Nagel Maschinen- Und Werkzeugfabrik Gmbh Verfahren und Vorrichtung zur Finishbearbeitung gekrümmter Werkstückoberflächen an Werkstücken mittels Finishband
DE102011081918A1 (de) 2011-08-31 2013-02-28 Nagel Maschinen- Und Werkzeugfabrik Gmbh Finishmaschine zur Finishbearbeitung gekrümmter Werkstückoberflächen an Werkstücken
TWI725225B (zh) * 2017-08-30 2021-04-21 日商荏原製作所股份有限公司 研磨裝置及研磨方法

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SG134176A1 (en) * 2006-01-09 2007-08-29 Giken Sakata S Ltd An apparatus for grinding a work piece
DE102007051047B4 (de) * 2007-10-16 2023-03-23 Nagel Maschinen- Und Werkzeugfabrik Gmbh Andrückeinrichtung für Finishband sowie Vorrichtung und Verfahren zur Finishbearbeitung von Umfangsflächen an zylindrischen Werkstückabschnitten
EP2617522B1 (fr) * 2012-01-23 2014-01-15 Supfina Grieshaber GmbH & Co. KG Dispositif de traitement précis d'une surface périphérique de pièce usinée agencée de manière excentrique par rapport à un axe de pièce usinée
CN104139333B (zh) * 2014-07-11 2016-05-18 山东金宝电子股份有限公司 铜箔表面处理机胶辊胶层的磨削方法及其使用的弧板夹具
DE102015005915A1 (de) * 2015-05-07 2016-11-10 Jakob Löwer Inh. von Schumann GmbH & Co. KG Entgratungsmaschine zum Entgraten von metallenen Werkstücken
DE102015221939B4 (de) * 2015-11-09 2018-10-31 Supfina Grieshaber Gmbh & Co. Kg Finishbandvorrichtung und Verfahren zur finishenden Bearbeitung eines Werkstücks
CN106425768B (zh) * 2016-09-23 2018-06-01 杭州新松机器人自动化有限公司 一种砂带浮动打磨机构
CN107953207A (zh) * 2017-12-26 2018-04-24 佛山市艾乐博机器人科技有限公司 一种打磨设备及其加工方法
CN108177061B (zh) * 2018-01-16 2019-10-18 苏州丰川电子科技有限公司 自动化金属表面处理装置
CN108044728B (zh) * 2018-01-18 2023-08-25 天津银雪环保科技服务有限公司 一种缠绕型圆模板及缠绕型圆模板的生产装置
CN110026867B (zh) * 2019-05-05 2021-06-15 钱泽袁 一种多角度加工辊轮制造装置
CN112059852A (zh) * 2020-09-30 2020-12-11 王后连 一种打磨带式带钢侧边毛刺清除装置
CN115464519B (zh) * 2022-10-26 2024-02-13 天津市春鹏预应力钢绞线有限公司 一种金属丝表面氧化层去除系统
CN117564890A (zh) * 2023-11-24 2024-02-20 宁波中策动力机电集团有限公司 一种随动砂带曲轴磨床及控制方法

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DE10342137B4 (de) * 2003-09-12 2010-07-29 Thielenhaus Technologies Gmbh Vorrichtung und Verfahren zur Finishbearbeitung von Wellen, insbesondere von Kurbel- und Nockenwellen

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010052311A1 (de) 2010-11-17 2012-05-24 Nagel Maschinen- Und Werkzeugfabrik Gmbh Verfahren und Vorrichtung zur Finishbearbeitung gekrümmter Werkstückoberflächen an Werkstücken mittels Finishband
WO2012065949A1 (fr) 2010-11-17 2012-05-24 Nagel Maschinen- Und Werkzeugfabrik Gmbh Procédé et dispositif de finition de surfaces courbées de pièces au moyen d'une bande de finition
DE102011081918A1 (de) 2011-08-31 2013-02-28 Nagel Maschinen- Und Werkzeugfabrik Gmbh Finishmaschine zur Finishbearbeitung gekrümmter Werkstückoberflächen an Werkstücken
WO2013030194A1 (fr) 2011-08-31 2013-03-07 Nagel Maschinen- Und Werkzeugfabrik Gmbh Machine de finition de surfaces courbes de pièces à usiner
TWI725225B (zh) * 2017-08-30 2021-04-21 日商荏原製作所股份有限公司 研磨裝置及研磨方法

Also Published As

Publication number Publication date
DE10342134B4 (de) 2009-09-03
DE10342134A1 (de) 2005-04-07
EP1514640A3 (fr) 2006-03-01
EP1514640A2 (fr) 2005-03-16
DE502004011200D1 (de) 2010-07-08

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