EP0446128A1 - Schleifvorrichtung mit Spindelführung für Werkzeuge mit rechten oder gewindeförmigen Schneiden - Google Patents

Schleifvorrichtung mit Spindelführung für Werkzeuge mit rechten oder gewindeförmigen Schneiden Download PDF

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Publication number
EP0446128A1
EP0446128A1 EP91400607A EP91400607A EP0446128A1 EP 0446128 A1 EP0446128 A1 EP 0446128A1 EP 91400607 A EP91400607 A EP 91400607A EP 91400607 A EP91400607 A EP 91400607A EP 0446128 A1 EP0446128 A1 EP 0446128A1
Authority
EP
European Patent Office
Prior art keywords
roller
drum
spindle
rod
stirrup
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.)
Ceased
Application number
EP91400607A
Other languages
English (en)
French (fr)
Inventor
Michel Nys
Christian Riquier
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.)
OUTILLAGE-GVR
Original Assignee
OUTILLAGE-GVR
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 OUTILLAGE-GVR filed Critical OUTILLAGE-GVR
Publication of EP0446128A1 publication Critical patent/EP0446128A1/de
Ceased 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
    • B24B3/02—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of milling cutters
    • 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
    • B24B19/02—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding grooves, e.g. on shafts, in casings, in tubes, homokinetic joint elements
    • B24B19/04—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding grooves, e.g. on shafts, in casings, in tubes, homokinetic joint elements for fluting drill shanks

Definitions

  • the subject of the invention is a device for sharpening tools with straight and helical edges, in particular for machine tool milling cutters.
  • EP-A-0.281.025 also discloses a sharpening device comprising a spindle guide by roller.
  • the roller is placed between two plates located on either side of the spindle and compressed by means of electromagnets which bring the plates together.
  • the spindle is supported on either side of the roller by two ball cages which move in guide tubes, but the movement of the spindle is limited to the length of the tubes, which limits the length of sharpening.
  • the present invention aims to solve the aforementioned drawbacks and to improve the known devices. This improvement is carried out in particular by reducing the bending of the spindle and by increasing the useful displacement length for the same size.
  • the subject of the invention is a device for sharpening tools with straight and helical edges of the type comprising a tool-holder spindle (or work-piece) moving in rotation and in translation in a housing, and a guide roller for the spindle intended to rest on it by at least one compression member, housed in the housing in a direction radial to the spindle, the roller being orientable in the housing with respect to the axis of the spindle so that the angle between the direction of rolling of the roller and the axis of the spindle, the roller being carried by a bracket connected to the housing by a drum whose rotation determines the angle between the direction of rolling of the roller and the axis of the spindle and l '' compression member exerting an adjustable roller support force characterized in that the compression member is disposed between the underside of the drum and the stirrup, and in that the stirrup has a lifting catch intended to lift the stone.
  • the roller can be removed from the spindle by means of a handle mounted on the grip nut.
  • the roller is removed to separate the rotational and translational movements. This allows the sharpening of cutting tools with straight edges, the rotation of the tool on itself to sharpen another tooth and the sharpening of a tool according to a movement generated by the following of a profile by means of a guide finger.
  • the device consists of a housing 9 in which can move freely in translation and in rotation a spindle 12 tool holder (or workpiece carrier).
  • the spindle has at one end a means not shown, suitable for clamping the tools to be sharpened and at the other, a handle not also shown, allowing manual movement of the spindle 12.
  • the spindle 12 is supported by two ball bearings 11 located on either side of the housing 9; the two bearings are rotary linear, commonly called ball bearings, characterized by a cage provided with ball circuits.
  • Each circuit of balls forms an endless chain and while half of the balls transmit the load by moving with the shaft, the other half is recycled in the unloaded area. This circulation of balls then admits linear displacements of unlimited length. The useful sharpening length is therefore only limited by the length of the spindle.
  • This arrangement (ball bearings) is isolated from the outside by means of two lateral flanges 10 provided with lip seals.
  • a roller 6 is housed in the housing and disposed on the spindle 12 in a radial direction thereto.
  • the roller 6 is carried by a stirrup 18 by means of a pin 7.
  • This stirrup 18 is orientable at all angles thanks to bearings 5 and 8.
  • the housing comprises a cylindrical tubular cavity 25 radial with respect to the axis of the spindle, in which the stirrup 18 is housed.
  • the stirrup on the side opposite the roller, has a rod-shaped extension 26, which projects outside this tubular cavity 25 of the housing.
  • a drum 3 closes this tubular cavity 25. It is provided with a central opening for the passage of the stirrup rod 26.
  • This drum has a through circular groove 39 intended for the angular adjustment of the roller and for blocking this adjustment. To this end a screw 2 secures the drum to the housing.
  • a flange 4 intermediate between the drum 3 and the end 40 of the cylinder.
  • a compression member between the caliper and the drum 3 which exerts its forces on the one hand on the drum or the flange 4, on the other hand on the caliper, intended to hold the roller 6 in contact on pin 12.
  • the compression member is a stack of spring washers 16 which abut on a shoulder 27 of the stirrup and on the underside 28 of the annular plate 15.
  • the drum 3 (FIGS. 1 and 2) is made to rotate with the roller holder caliper 18 by means of an adjustment rod 13 which extends in the drum radially from the caliper rod 26 in a recess of immobilization 28 and by means of adjustment screws 17.
  • the recess 28 has an angular clearance allowing the rotation of the drum 3 and the stirrup rod 26 to be adjusted, and a vertical clearance 29 allowing the vertical displacements of the stirrup rod in the drum.
  • the screws 17 are coaxial and directed towards each other, FIG. 2, the ends of the screws 17 trap the head of the adjustment rod 13.
  • the rotation in one direction or the other of the drum 3 drives, by the adjusting screws 17 and the adjusting rod 13, the roller holder caliper 18 in the same rotational movement.
  • the immobilization in rotation can be achieved by concordance of shapes: it is indeed possible to arrange or produce on the profile of the stirrup rod 26 an element preventing the rotation of said rod, for example a key, a chamfered profile, ...
  • the end of the stirrup rod comprises a gripping means intended to lift the roller; this means consists of a thread 41 produced on the upper end of the stirrup rod, and of a nut 30 which abuts against the upper surface of the drum.
  • the nut is extended laterally by a handle 1 whose rotation in the thread 41 at the end of the stirrup rod 26 causes said stirrup rod to rise and the roller 6 to be raised.
  • the nut 3 consists of two parts: a central nut 35, the upper end of which is grooved, an external concentric button 36, internally grooved so that the button 36 slides on the nut 35.
  • the handle 1 is integral button.
  • a spring 37 recalls the button engaged on the nut 35. This arrangement makes it possible to adjust the position of the handle on the nut and then to keep the handle positioned against a stop 38, whatever the pressure exerted on the spring 34 .
  • the device according to the invention offers numerous advantages: it is of simple and inexpensive design and construction, it makes it possible to sharpen tools of all lengths with great precision of the pressure settings of the roller without deformation of the spindle.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Machine Tool Units (AREA)
EP91400607A 1990-03-06 1991-03-06 Schleifvorrichtung mit Spindelführung für Werkzeuge mit rechten oder gewindeförmigen Schneiden Ceased EP0446128A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9002979A FR2659260B1 (fr) 1990-03-06 1990-03-06 Dispositif d'affutage des outils a aretes droites ou helicouidales muni d'un guidage de broche.
FR9002979 1990-03-06

Publications (1)

Publication Number Publication Date
EP0446128A1 true EP0446128A1 (de) 1991-09-11

Family

ID=9394539

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91400607A Ceased EP0446128A1 (de) 1990-03-06 1991-03-06 Schleifvorrichtung mit Spindelführung für Werkzeuge mit rechten oder gewindeförmigen Schneiden

Country Status (2)

Country Link
EP (1) EP0446128A1 (de)
FR (1) FR2659260B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100439037C (zh) * 2006-02-24 2008-12-03 徐东杰 铣刀刃磨机
CN101804594A (zh) * 2010-05-07 2010-08-18 台州北平机床有限公司 刀具沟槽的磨削装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2503926A (en) * 1945-04-28 1950-04-11 Raymond T Moloney Spiral grinding machine
US3183012A (en) * 1963-05-14 1965-05-11 Peterson Machine Tool Inc Chuck mounting
FR2122657A5 (de) * 1971-01-19 1972-09-01 Lucas Rene
DE2522644A1 (de) * 1975-05-22 1976-12-09 Duerkoppwerke Drehtisch mit stuetzrollenlagerung
DE3020317A1 (de) * 1980-05-29 1981-12-03 Horst 5630 Remscheid Stanzl Universal-spiralschleifgeraet
DE3232689A1 (de) * 1982-09-02 1984-03-08 Volker 8044 Lohhof Zang Vorrichtung zum einstellen von spiralsteigungen, insbesondere fuer das spiralnut- und gewindeschleifen
EP0281025A1 (de) * 1987-03-04 1988-09-07 Volker Zang Vorrichtung zum Schleifen von gerad- und wendelgenuteten Schneidwerkzeugen

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2503926A (en) * 1945-04-28 1950-04-11 Raymond T Moloney Spiral grinding machine
US3183012A (en) * 1963-05-14 1965-05-11 Peterson Machine Tool Inc Chuck mounting
FR2122657A5 (de) * 1971-01-19 1972-09-01 Lucas Rene
DE2522644A1 (de) * 1975-05-22 1976-12-09 Duerkoppwerke Drehtisch mit stuetzrollenlagerung
DE3020317A1 (de) * 1980-05-29 1981-12-03 Horst 5630 Remscheid Stanzl Universal-spiralschleifgeraet
DE3232689A1 (de) * 1982-09-02 1984-03-08 Volker 8044 Lohhof Zang Vorrichtung zum einstellen von spiralsteigungen, insbesondere fuer das spiralnut- und gewindeschleifen
EP0281025A1 (de) * 1987-03-04 1988-09-07 Volker Zang Vorrichtung zum Schleifen von gerad- und wendelgenuteten Schneidwerkzeugen

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100439037C (zh) * 2006-02-24 2008-12-03 徐东杰 铣刀刃磨机
CN101804594A (zh) * 2010-05-07 2010-08-18 台州北平机床有限公司 刀具沟槽的磨削装置
CN101804594B (zh) * 2010-05-07 2013-05-01 台州北平机床有限公司 刀具沟槽的磨削装置

Also Published As

Publication number Publication date
FR2659260A1 (fr) 1991-09-13
FR2659260B1 (fr) 1994-04-15

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