EP0489708B1 - Dispositif de meulage - Google Patents

Dispositif de meulage Download PDF

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Publication number
EP0489708B1
EP0489708B1 EP19910890297 EP91890297A EP0489708B1 EP 0489708 B1 EP0489708 B1 EP 0489708B1 EP 19910890297 EP19910890297 EP 19910890297 EP 91890297 A EP91890297 A EP 91890297A EP 0489708 B1 EP0489708 B1 EP 0489708B1
Authority
EP
European Patent Office
Prior art keywords
tool
copying
spindle
templates
housing
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
EP19910890297
Other languages
German (de)
English (en)
Other versions
EP0489708A1 (fr
Inventor
Konrad Trausnigg
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.)
" Neuson" -Olfeldschieber GmbH
Original Assignee
" Neuson" -Olfeldschieber 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 " Neuson" -Olfeldschieber GmbH filed Critical " Neuson" -Olfeldschieber GmbH
Publication of EP0489708A1 publication Critical patent/EP0489708A1/fr
Application granted granted Critical
Publication of EP0489708B1 publication Critical patent/EP0489708B1/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
    • B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
    • B24B3/24—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of drills
    • 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
    • B24B17/00—Special adaptations of machines or devices for grinding controlled by patterns, drawings, magnetic tapes or the like; Accessories therefor
    • B24B17/02—Special adaptations of machines or devices for grinding controlled by patterns, drawings, magnetic tapes or the like; Accessories therefor involving mechanical transmission means only
    • B24B17/023—Special adaptations of machines or devices for grinding controlled by patterns, drawings, magnetic tapes or the like; Accessories therefor involving mechanical transmission means only using two or more templates

Definitions

  • the invention relates to a device according to the preamble of patent claim 1.
  • Such a device is known from FR-A 1 323 954.
  • spiral tools is understood to mean single and multi-stage center drills, twist drills, spiral countersinks, taps, cannon drills, step, radius and shape milling cutters, ball countersinks, hole countersinks, tenon countersinks, quarter-round cutters, gravers, etc., in which the spiral grooves or The like. Left or right can be provided.
  • a device according to the preamble of claim 1 is known from FR-A-1323954.
  • the cross slide is mounted on a turntable and can be rotated with the turntable.
  • a geared motor is used to drive the tool spindle, which is connected to the tool spindle via a V-belt drive.
  • Only a single template is provided, which is attached to the tool spindle in a rotationally fixed manner.
  • a roller seated on a swivel lever is used to scan the template, the swivel lever with a second lever arm transmitting the scanning movement to a further swivel lever of a copying unit via interposed ball elements.
  • the translation ratios in the two coordinate directions are set according to tables, dial gauges being provided for each of the two coordinate directions to facilitate the setting.
  • the copying units are mounted separately from each other, with the copying unit serving for length adjustment below the tool spindle and the second copying unit at a distance from it as a separate component is mounted transversely to the tool spindle.
  • the object of the invention is to provide a device of the type mentioned which, with a simple design and easier operability, in particular without special tools, enables exact positioning of the tools enables during the grinding process, with re-clamping processes to be avoided during the machining process even with complicated step tools, a quick and easy change to other templates is possible and the reworking of the machining point on the grinding tool is simplified during regrinding.
  • the device according to the invention has a simple compact overall structure in which all essential parts are protected in the housing.
  • a particular advantage is that the coupling provided in the course of the tool spindle, which can be engaged in any relative rotational position of its two halves, allows the tool to be adjusted relative to the grinding tool in the disengaged state, which means, among other things, the positioning when regrinding step tools and their flutes do not merge exactly, it is much easier.
  • the spindle is disengaged or the copying units are set to a zero ratio, concentric cylinder and cone surfaces can be ground on the tool.
  • fine drives with associated display devices or fine drives with servomotors can be provided, which can be designed as programmable stepper motors, so that any desired transmission ratio can be set quickly and reproducibly.
  • the adjustable driver can be realized in the manner specified in claim 4.
  • undercuts including counter-undercuts
  • both axial and radial undercuts being possible and when grinding twist drill tips and similar processes it is also possible to carry out a feed movement in one coordinate direction and one in the other coordinate direction To generate push-back movement.
  • a cross slide guide 2, 3 On a turn at least in two coordinate directions with respect to the grinding tool or tools of a grinding machine via feed devices adjustable rotary table 1, a cross slide guide 2, 3 is attached, on which a housing 4 is held "floating" adjustable against biasing springs, so that the housing 4 adjustment movements in the two Coordinate directions 5, 6, rotary movements according to the arrow 7 with the turntable and pivoting movements can be carried out at differently adjusted support points in the two coordinate directions and thus the setting of a tool spindle 8 mounted in the housing 4 in the various positions mentioned for setting relief-ground surfaces on one of the spindle 8 carried tool 9, which in the embodiment consists of a step twist drill in which the tip 10, the minor cutting edges on the flutes 11, 12 and the end cutting edge 13 between the two drill stages 14, 15 to h are intercut.
  • the drill 9 engages with its shaft 16 in a known manner in an interchangeable holder (holding cone) 17 of the left spindle part 18, which is connected to the part 19 of the spindle 8 shown on the right in FIG. 2 via a clutch 20 which can be engaged and disengaged both coupling halves 21, 22 can be engaged in any rotational position.
  • the right part 19 of the spindle 8 located within the housing 4 can be designed as a spline shaft.
  • a set of several individual templates 23 is attached to it in a longitudinally displaceable manner, the template 23a matching the outline shape of the tool 9 just clamped in is fixed axially in a working position using known means.
  • the tool spindle 8 is rotatably mounted in the housing with rotary bearings, not shown.
  • An end 24 of the spindle 8 led out of the housing 4 on the right is connected to a geared motor 25 designed as a servomotor. With the help of which the spindle 8 is driven in a controlled rotating manner.
  • a template 23a which has an outline shape adapted to the cross-sectional shape of the two drill steps 14, 15.
  • the template 23a is engaged by a sensing pin 26 of a copying rod 27 which is longitudinally displaceably guided by means not shown in the housing 4, which copying rod performs a stroke resulting from the scanning of the template 23a.
  • the copying rod 27 is connected via a joint 28 directly to one end of a two-armed pivoting lever with arms 29, 30 arranged transversely to it and via a diagonal lever 31 to the other end 32 of a pivoting lever with the arms arranged in its basic position parallel to the front housing wall 33 34, 35 connected.
  • the two swivel levers 29, 30 and 34, 35 can be pivoted about axes 36, 37 which are guided out of the housing 4 and are fixedly attached to the turntable 1. In the rest position of the lever 29, 30 it runs approximately parallel to a wall 38 of the housing.
  • a roller 41, 42 bridging the gap by its thickness which can also be referred to as drivers or transfer rollers, is adjustably attached over the lever length.
  • these rollers parallel to the walls 33, 38 arranged by hand or via servomotors, not shown fine drives, threaded spindles and the like.
  • fine drives, threaded spindles and the like Like. Be provided.
  • the drivers (transfer rollers) 41, 42 In the rest position shown The drivers (transfer rollers) 41, 42 in no way hinder a pivoting movement of the levers 29, 30 or 34, 35 generated by scanning the template 23a via the copying rod 27.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Claims (5)

  1. Dispositif pour fixer et guider des outils hélicoïdaux à façonner, par exemple des forets hélicoïdaux d'une ou plusieurs tailles, sur des rectifieuses, avec un chariot à mouvements croisés (2, 3), destiné à positionner les paliers d'une broche d'outil (8), présentant une fixation interchangeable (17) pour l'outil (9) à usiner, par rapport à l'outil de rectification, et un moto-réducteur (25), pour le réglage en rotation de la broche d'outil (8), des gabarits (23, 23a) tournant conjointement avec la broche d'outil (8) étant prévus, pour effectuer le réglage fin de la boche d'outil (8), dans les deux directions de coordonnées du chariot à mouvement croisé (2, 3), se présentant sous forme de disques de came, respectivement des disques partiels, adaptés à la section transversale ou à la forme du contour, et des appareils à copier (29 à 42), explorant conjointement ces gabarits étant prévus, et le rapport de démultiplication des appareils à copier (29 à 42) étant réglable séparément pour les deux directions de coordonnées, de manière que les appareils à copier (29 à 42) opèrent un mouvement de réglage de la broche de réglage (8), respectivement de ses points d'appui, dans la direction de coordonnée associée, de la valeur d'une course définie par un point d'exploration instantané du gabarit (23a) et par le rapport de démultiplication réglé,
    caractérisé en ce que la broche d'outil (8) est encapsulée avec les appareils à copier (29 à 42), les gabarits (23) et les paliers de broche dans un carter (4), d'où sort la partie (18) de broche d'outil (8), présentant la fixation interchangeable (17) et maintenue dans un position de base par rapport au chariot à mouvements croisés (2, 3), à l'aide d'appuis, au moyen de dispositifs de bridage déformables, dont les efforts de rappel sont cependant supérieurs aux composantes possibles des efforts d'usinage produits sur l'outil (9), et réglable par l'intermédiaire des appareils à copier (29 à 42), à l'encontre de ces efforts de rappel, tout en faisant pivoter les points d'appui des paliers de broche, et une tige de copiage (27), guidée de façon à pouvoir se déplacer longitudinalement dans le carter (4), déplaçable à peu près radialement par rapport à la broche (8) et étant liée en entraînement à l'aide des deux appareils à copier (29 à 42), un jeu de gabarits (23), associés à des outils (9), respectivement de tailles d'outils, divers et différents, pouvant être prévu, et chaque fois l'un deux étant réglable dans une position d'exploration, et en ce que la broche (8) est subdivisée, entre la fixation interchangeable (17) et une partie d'entraînement (19), associée au moto-réducteur (25), pour les gabarits (23, 23a) à explorer, la subdivision étant effectuée au moyen d'un embrayage (20), susceptible d'être embrayé dans chaque position en rotation relative de ses deux moitiés (21, 22).
  2. Dispositif selon la revendication 1,
    caractérisé en ce que les gabarits (23) sont disposés déplaçables axialement sur une partie (19), prévue entre le moto-réducteur (25) et l'embrayage (20), de la broche d'outil (8), et l'un (23a) d'entre eux pouvant chaque fois être bloqué axialement en position d'attaque, à l'aide de la tige de couplage (27) guidée de façon à pouvoir se déplacer en direction longitudinale.
  3. Dispositif selon la revendication 1,
    caractérisé en ce que les appareils à copier (29 à 42) présentent chacun un levier pivotant à deux bras (29, 30, respectivement 34, 35), relié en entraînement à la tige de copiage (27), et en ce que le levier pivotant est susceptible de pivoter, par l'intermédiaire de la tige de copiage (27), autour d'un axe (26, 37), en sortant du carter (4) et fixé sur le chariot à mouvements croisés (2, 3), depuis une position de repos, s'étendant à peu près normalement par rapport aux coordonnées de réglage, lui étant associées, du chariot à mouvements croisés (2, 3), où un organe d'entraînement (41, 42) associé, réglable par l'intermédiaire de la longueur du levier, opère un réglage du carter (4) avec la broche (8), en fonction de l'exploration du gabarit, suivant un rapport de démultiplication défini par la distance entre cet organe d'entraînement et l'axe de pivotement (36, 37) du levier pivotant, dans la direction de coordonnée associée.
  4. Dispositif selon la revendication 3,
    caractérisé en ce que le carter (4) présente des surfaces de butée, parallèles aux leviers pivotant (29, 30, respectivement 34, 35), réalisées sur les parois extérieures de carter, et des galets de transmission (41, 42), remplissant l'interstice se trouvant entre les leviers pivotants, placés en position de repos, et les surfaces de butée, étant prévus, réglables à l'aide des transmissions de réglage, par l'intermédiaire de la longueur de levier.
  5. Dispositif selon l'une des revendications 1 à 4,
    caractérisé en ce que la tige de copiage (27) est couplée directement à une première extrémité (29) du premier levier pivotant (29, 30), qui lui est disposé à peu près perpendiculairement, et de façon articulée, par l'intermédiaire d'un levier de liaison (31) diagonal, à l'autre extrémité (34) du deuxième levier pivotant (34, 35), qui lui est disposé à peu près parallèlement.
EP19910890297 1990-12-06 1991-12-05 Dispositif de meulage Expired - Lifetime EP0489708B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT2465/90 1990-12-06
AT246590A ATA246590A (de) 1990-12-06 1990-12-06 Vorrichtung zur halterung und führung von zu bearbeitenden spiralwerkzeugen

Publications (2)

Publication Number Publication Date
EP0489708A1 EP0489708A1 (fr) 1992-06-10
EP0489708B1 true EP0489708B1 (fr) 1994-07-20

Family

ID=3534847

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910890297 Expired - Lifetime EP0489708B1 (fr) 1990-12-06 1991-12-05 Dispositif de meulage

Country Status (4)

Country Link
EP (1) EP0489708B1 (fr)
AT (1) ATA246590A (fr)
DE (1) DE59102253D1 (fr)
ES (1) ES2057848T3 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110919482B (zh) * 2019-11-13 2021-07-30 嘉善联睿电子科技有限公司 一种用于电子产品的打孔打磨设备
CN113231921B (zh) * 2021-04-14 2022-12-20 成都先进金属材料产业技术研究院股份有限公司 一种金属板材疲劳试样打磨装置及其方法
CN117226691B (zh) * 2023-11-13 2024-01-12 烟台龙港泵业股份有限公司 一种离心泵电机罩壳生产用打磨装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2929288A (en) * 1957-04-08 1960-03-22 Giannini Controls Corp Pantograph attachment for lathes and the like
NL278512A (fr) * 1961-05-16
FR1401983A (fr) * 1964-02-04 1965-06-11 Glaenzer Spicer Sa Perfectionnements aux machines à profiler
FR2144284A5 (fr) * 1971-06-30 1973-02-09 Habib Robert
US4005551A (en) * 1975-04-07 1977-02-01 Lines Roy C Cam operated stone grinding device

Also Published As

Publication number Publication date
ES2057848T3 (es) 1994-10-16
DE59102253D1 (de) 1994-08-25
ATA246590A (de) 1996-02-15
EP0489708A1 (fr) 1992-06-10

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