EP0389871B1 - Dispositif pour actionner une ébarbeuse - Google Patents

Dispositif pour actionner une ébarbeuse Download PDF

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Publication number
EP0389871B1
EP0389871B1 EP19900104858 EP90104858A EP0389871B1 EP 0389871 B1 EP0389871 B1 EP 0389871B1 EP 19900104858 EP19900104858 EP 19900104858 EP 90104858 A EP90104858 A EP 90104858A EP 0389871 B1 EP0389871 B1 EP 0389871B1
Authority
EP
European Patent Office
Prior art keywords
grinding
cutting
disk
casting
machine
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
EP19900104858
Other languages
German (de)
English (en)
Other versions
EP0389871A3 (fr
EP0389871A2 (fr
Inventor
Werner Lüber
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0389871A2 publication Critical patent/EP0389871A2/fr
Publication of EP0389871A3 publication Critical patent/EP0389871A3/fr
Application granted granted Critical
Publication of EP0389871B1 publication Critical patent/EP0389871B1/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
    • 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
    • B24B49/10—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 involving electrical means
    • 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
    • B24B27/033—Other grinding machines or devices for grinding a surface for cleaning purposes, e.g. for descaling or for grinding off flaws in the surface
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T408/00—Cutting by use of rotating axially moving tool
    • Y10T408/16—Cutting by use of rotating axially moving tool with control means energized in response to activator stimulated by condition sensor
    • Y10T408/17—Cutting by use of rotating axially moving tool with control means energized in response to activator stimulated by condition sensor to control infeed
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T409/00—Gear cutting, milling, or planing
    • Y10T409/30—Milling
    • Y10T409/306664—Milling including means to infeed rotary cutter toward work
    • Y10T409/307224—Milling including means to infeed rotary cutter toward work with infeed control means energized in response to activator stimulated by condition sensor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/141—With means to monitor and control operation [e.g., self-regulating means]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/849—With signal, scale, or indicator
    • Y10T83/853—Indicates tool position
    • Y10T83/855—Relative to another element

Definitions

  • the present invention relates to an automatic cast cleaning machine with a mutually and jointly adjustable clamping means for a machine base to be machined to carry a machine stand and with a tool holder carrying a grinding and / or cutting disc, which is supported on a machine stand by means of slides on the cast workpiece, wherein at least the working feed of the grinding or cutting disc is program-controlled by means of workpiece-dependent control data.
  • Such a cast cleaning machine is known from DE-A-2204159.
  • the rotational speeds of the motor that change when the workpiece is ground by the grinding tool determine the relative infeed speed between the grinding wheel and the workpiece.
  • DE-A-310 55 78 discloses position detection relative to the workpiece, but part of the program control of the tool movement also starts at the point of contact between the tool and the grinding wheel, which leads to large deviations depending on the different clamping of the tool.
  • the cast cleaning machines of the known type show an unstable behavior of all parts in motion, which increases the susceptibility to fibrillation and thus imprecise control.
  • the object of the present invention is therefore to create a cast-iron grinding machine of the aforementioned type which starts at a flexible starting point for a precise introduction of the programmed machining process, namely directly in front of the workpiece, and in which the unstable behavior of all parts in motion is eliminated.
  • a control signal can be generated, which takes effect before a contact between the grinding or cutting disc and the cast workpiece and thus initiates a precise program-controlled machining of the cast workpiece, independently and unaffected by fibrations. It is also irrelevant what material the workpiece is made of and, in addition, that now only the grinding or cutting wheel receives a linear feed during the machining process, but all other actuators are brought into a rigid connection state, any vibrations transferred to actuators can occur no longer have a negative impact.
  • the automatic cast plaster grinding machine for processing a cast workpiece 1 comprises a machine stand 10 on which can be moved vertically, horizontally and against one another Tensioning means 5 and 6 are supported for the cast workpiece 1.
  • the actuating means here are preferably hydraulic cylinders 42, 42 '. 43 and 44, which are operatively connected to a controllable hydraulic control 50 via corresponding feed lines.
  • a tool holder 3 which carries a grinding and / or cutting disc 2, is supported on a machine frame 11 by means of slides 4 on the casting workpiece 1.
  • a motor or, as shown, a hydraulic cylinder 40 can effect the feed.
  • the tool holder 3 can additionally be arranged on the slide means 4 for a transverse feed, which then, as indicated, is effected by a further hydraulic cylinder 45.
  • hydraulic or electric servomotors are also conceivable.
  • the actuating means on the machine frame 11 are also operatively connected to the hydraulic control 50 mentioned. This can also be provided for the drive motor 41 of the grinding or cutting disc 2.
  • the cast workpiece 1 clamped between them is connected in series with a controllable high-voltage generator 20 and an ignition current evaluation circuit 21 which supplies the control signal 22.
  • This circuit also includes a control stage 26 connected to the high-voltage generator 20.
  • the output signal 22 then passes to a CNC control system or the like, which in turn controls the hydraulic control 50 by means of control signals 25 and is also fed back by means of a release signal 24.
  • the output voltage at the high-voltage generator 20 can be 1,000 to 20,000 volts, whereas the limited ignition current should not exceed 0.1 mA.
  • the output signal 22 of the ignition current evaluation circuit 21 has approximately 24 volts.
  • a controllable high-voltage potential is thus built up between the grinding or cutting disc 2 and the cast workpiece 1, the level of the voltage and the size of the air gap 30 forming the flashover gap between the disc and the workpiece being a precise measure of the ignition voltage causing the electrical control signal 22.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)

Claims (1)

  1. Ebarbeuse automatique de fonte comportant un montant (10) portant des moyens de blocage (5, 6), réglables l'un par rapport à l'autre et conjointement, d'une pièce de fonte (1) à usiner et comportant un porte-outil (3), portant un disque de rectification et/ou de tronçonnage (2), qui prend appui sur un bâti (11) de la machine, de manière ajustable par rapport à la pièce en fonte (1), par l'intermédiaire de moyens à chariot (4), l'avance de travail au moins du disque de rectification ou de tronçonnage étant programmée au moyen de données de commande dépendant de la pièce, caractérisée en ce que
    a) les moyens de blocage (5, 6) sont isolés électriquement par rapport au montant (10) de la machine par des moyens d'isolation (12) et le disque de rectification et/ou de tronçonnage (2) est isolé électriquement par rapport au porte-outil (3) par des moyens d'isolation électrique (13) ;
    b) le disque de rectification et/ou de tronçonnage (2) est électriquement conducteur ;
    c) le disque de rectification et/ou de tronçonnage (2) et les moyens de blocage (5, 6) ou la pièce en fonte (1), serrée entre ceux-ci, sont montés en série avec un générateur à haute tension (20) réglable et un circuit d'exploitation à courant d'allumage (21) fournissant un signal de commande (22) ; et
    d) la tension d'allumage du potentiel à haute tension réglable, s'établissant entre le disque de rectification ou de tronçonnage et la pièce en fonte, produit un signal de commande, qui entraîne une avance de travail linéaire programmée du disque de rectification ou de tronçonnage et amène en même temps tous les autres moyens de réglage de l'ébarbeuse de fonte dans un état de liaison rigide ;
    e) les moyens de réglage des moyens à chariot (4) ou les moyens de blocage (5, 6) étant des servomoteurs ou des vérins hydrauliques (40, 45, 42, 42', 43, 44) commandables et blocables.
EP19900104858 1989-03-29 1990-03-15 Dispositif pour actionner une ébarbeuse Expired - Lifetime EP0389871B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1129/89A CH678292A5 (fr) 1989-03-29 1989-03-29
CH1129/89 1989-03-29

Publications (3)

Publication Number Publication Date
EP0389871A2 EP0389871A2 (fr) 1990-10-03
EP0389871A3 EP0389871A3 (fr) 1991-02-06
EP0389871B1 true EP0389871B1 (fr) 1994-09-14

Family

ID=4203170

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900104858 Expired - Lifetime EP0389871B1 (fr) 1989-03-29 1990-03-15 Dispositif pour actionner une ébarbeuse

Country Status (6)

Country Link
US (1) US5079874A (fr)
EP (1) EP0389871B1 (fr)
AT (1) ATE111389T1 (fr)
CH (1) CH678292A5 (fr)
DE (1) DE59007098D1 (fr)
ES (1) ES2060837T3 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1055884C (zh) * 1993-12-16 2000-08-30 太原市恒山机械厂 微机控制磨削钢坯的方法和设备
JP3022387B2 (ja) * 1997-03-27 2000-03-21 三ツ星ベルト株式会社 ベルトスリーブ材の幅切断装置
US20030196528A1 (en) * 2002-04-19 2003-10-23 Cooper Christopher W. Compliant cutoff saw assembly
CN105290937A (zh) * 2015-11-09 2016-02-03 芜湖天金机械有限公司 万向节驱动轴在线除锈抛光上蜡装置及工艺方法
CN105382668A (zh) * 2015-12-18 2016-03-09 国家电网公司 钢管除锈装置
CN107971881B (zh) * 2017-12-06 2019-06-28 日照中兴汽车有限公司 一种用于汽车整车制造的汽车零件抛光装置
CN108436716A (zh) * 2018-03-16 2018-08-24 郭考香 一种地埋式垃圾压缩箱环保处理机
CN108326704B (zh) * 2018-04-09 2020-01-31 烟台世德装备股份有限公司 圆柱形铸件表面打磨装置
CN109719625B (zh) * 2019-02-27 2021-07-06 库卡机器人制造（上海）有限公司 力控装置及机器人
CN111823066B (zh) * 2020-07-24 2021-05-18 江西晖旭实业有限公司 一种铸造件浇注成型后表面精加工处理系统及处理工艺
CN113427346B (zh) * 2021-07-15 2022-02-18 安徽新境界自动化技术有限公司 一种面向铸铁件的打磨加工工艺

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3667165A (en) * 1971-02-16 1972-06-06 G & B Automated Equipment Ltd Conditioning grinder
JPS5216837B2 (fr) * 1973-07-17 1977-05-11
CH571931A5 (fr) * 1974-06-08 1976-01-30 Movomatic Sa
CH651491A5 (de) * 1980-12-23 1985-09-30 Maag Zahnraeder & Maschinen Ag Vorrichtung zum positionieren einer schleifscheibe.
DE3717568A1 (de) * 1987-05-25 1988-12-08 Lach Spezial Werkzeuge Gmbh Verfahren und vorrichtung zum mechanischen schleifen von werkstuecken mittels elektrisch leitfaehiger schleifwerkzeuge

Also Published As

Publication number Publication date
ATE111389T1 (de) 1994-09-15
CH678292A5 (fr) 1991-08-30
ES2060837T3 (es) 1994-12-01
EP0389871A3 (fr) 1991-02-06
DE59007098D1 (de) 1994-10-20
EP0389871A2 (fr) 1990-10-03
US5079874A (en) 1992-01-14

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