EP1851001B1 - Transfermaschine zur herstellung von bohrern und bits - Google Patents

Transfermaschine zur herstellung von bohrern und bits Download PDF

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Publication number
EP1851001B1
EP1851001B1 EP06705346A EP06705346A EP1851001B1 EP 1851001 B1 EP1851001 B1 EP 1851001B1 EP 06705346 A EP06705346 A EP 06705346A EP 06705346 A EP06705346 A EP 06705346A EP 1851001 B1 EP1851001 B1 EP 1851001B1
Authority
EP
European Patent Office
Prior art keywords
spindle
machine according
axle
sector
circle sector
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.)
Not-in-force
Application number
EP06705346A
Other languages
English (en)
French (fr)
Other versions
EP1851001A1 (de
Inventor
Michel Rollier
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.)
Rollomatic SA
Original Assignee
Rollomatic SA
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 Rollomatic SA filed Critical Rollomatic SA
Priority to EP06705346A priority Critical patent/EP1851001B1/de
Publication of EP1851001A1 publication Critical patent/EP1851001A1/de
Application granted granted Critical
Publication of EP1851001B1 publication Critical patent/EP1851001B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • B24B3/247—Supports for 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
    • 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
    • B24B3/26—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of drills of the point of twist drills

Definitions

  • the present invention relates to a transfer machine for producing bits or drills.
  • the transfer machines comprise several stations arranged to simultaneously perform various operations in automated sequences. This is particularly the case for machines intended to ensure the production in large series of small diameter parts such as bits or drills specially designed for so-called PCB operations or the drilling of printed circuits.
  • the production of such drills, intended for consumer industries, requires machines capable of ensuring their production under conditions of efficiency and precision as high as possible.
  • Transfer machines at four or even five stations are common and we know that it is wise to organize the sequence of operations so as to use only a few stations and to distribute the different operations according to their durations, so that the time of the complete cycle ensures an optimal productivity.
  • the present invention relates to a transfer machine at several stations for machining drills characterized in that , to perform successive operations of relief and rear clearance on said drills, it comprises a combined station having a base unique and performing both operations in the same position of this base.
  • the said combined station preferably comprises a rotating spindle mounted on a movable composite support subjected to the action of a numerical control, two coaxial grinding wheels being fixed on the axis of the spindle.
  • the movable composite support comprises a circle sector mounted to pivot about a vertical axis on a mobile table on the base, a vertical structure integral with the circle sector and a vertical sliding slider on the said structure and carrying the pin, the axis of the latter being horizontal.
  • One of the two wheels fixed on the axis of the spindle may be a grinding wheel, the arrangement of the composite support being such that the pivot axis of the circle sector intersects the axis of the spindle in the plane of the spindle. this millstone.
  • the table may be mounted on a horizontal slide moving in a direction which, for a given position of the circle sector, is parallel to the axis of the spindle, the slide being supported and guided by said base.
  • the table mounted on the horizontal slide of the base may comprise a plurality of arcuate grooves centered on the pivot axis of the circle sector, the latter being equipped, in its face facing said table, locking pistons profiles T engaged in said grooves for blocking (passive) sector.
  • the second grinding wheel can be a rear release grinding wheel and can be fixed coaxially in front of the grinding wheel on the axis of the spindle, the said position determined from the circle sector is that corresponding to the rear clearance operation, the spindle axis being parallel to the direction of movement of the horizontal slide on the base.
  • the circle sector can be connected to the table by a vertical pivot axis, locking pistons and by a drive system supported by the table, itself consisting of a notched pinion motor with a vertical axis placed between two tensioning gears, and a belt pressed against the arcuate sector slice, fixed at both ends to this slice and passing into the drive system formed by the notched pinion and its two tensioning gears, the system of driving the circle sector which can be arranged in such a way that, by rotation of this sector about its axis of rotation, the axis of the grinding spindle can be brought into an orientation which makes with the direction of movement of the slide horizontal an angle corresponding approximately to the inclination of the turns of the threads of the drill relative to the axis of the latter, so as to go from the operation of the calibration to the operation of rear clearance re or vice versa.
  • a drive system supported by the table itself consisting of a notched pinion motor with a vertical axis placed between two tensioning gears, and a belt pressed
  • the circle sector rotation drive system may have a numerically controlled motor, the control of the back-off and back-off operations being incorporated into a fully automatic transfer machine control program enabling the automated production of the drills.
  • FIG. Fig. 7 An example of a transfer machine according to the invention is shown in FIG. Fig. 7 .
  • This transfer machine comprises a loading station 51, a cutting station 52, a sharpening station 53 and a combined recalibration and rear clearance station 54.
  • a rotary table 55 is disposed at the center of the machine and comprises in particular four door clamps.
  • -Parts 56, 57, 58 and 59 intended to simultaneously present four drill bits to the tools of the four stations of the machine.
  • the drills 1 are mounted in the workpiece clamps of the transfer machine so as to be presented to the tools of the various stations and perform certain rotational movements, according to the programs provided.
  • Each drill has a cylindrical rod 1 ( Fig. 1 ) on which one recognizes the different effective surfaces which appear once all the operations ended.
  • a helical guide surface 2 divided into two narrow strips, called cylindrical indicators, two flutes 3, resulting from the helical cut, two cylindro-ogival surfaces 4 of relief at the active end of the part , a cylindrical surface 5 of diameter slightly smaller than that of the surfaces 2, forming the rear clearance, this surface being reduced to two helical strips by the goujurage 3 and extending to the rear end of the piece, two portions of surfaces 6 prolonging the relief and corresponding to a secondary sharpening and two pyramidal surfaces 7 extending the guide surfaces 2 and corresponding to a primary sharpening of the tip. All these surfaces are formed by appropriate grinding wheels in the various stations of the machine as indicated above.
  • a fixed base 8 carries a horizontal slide 9 which, when the workpiece 1 and the combined station are in the relative position of rear clearance, moves parallel to the axis of the workpiece.
  • a table 10 On the slide 9 is fixed a table 10 whose flat upper surface has four grooves 11, 12, 13, 14 to rail profile, concentric, of different lengths, and of different diameters.
  • the table 10 At its rear end the table 10 carries a motor frame 15 containing, as will be seen later, a drive motor with notched pinion vertical axis and two pinions tensioners for moving a quarter-circle plate 16 forming part of a movable composite support on which the grinding spindle is mounted.
  • the rotating circle sector 16 also visible to Fig. 3 to 7 , comprises a radial branch 17. At its end thereof is pierced with a hole for the engagement of a vertical axis pivot 19 fixed to the table 10 precisely at the central point of the grooves 11 to 14.
  • the Fig. 3 shows this layout in detail.
  • the circle sector 16 carries on its rear face four locking pistons 20, 21, 22, 23 T-profile each engaged in one of the grooves 11, 12, 13 and 14. The rotation of this part 16 is perfectly guided concentrically to the axis 19 by the sliding of its lower face on the upper face of the part 10.
  • the lateral surface 18 of the circular sector 16 is a cylindrical surface forming its edge, also centered on the axis 19 and against which is supported a toothed belt 24 whose two ends are fixed at the points 25 and 26 on the right-angled sides of the part 16 leaving sufficient free length for the belt 24 to pass on the notched pinion 27 and the tensioning pinions 28 and 29 of the circle sector drive system 16 ( Fig. 3 ).
  • the frame 15 ( fig.2 ) contains a drive motor 49 with a control circuit capable of rotating the driving pinion 27 and rotating at will the circular sector 16 of the movable composite support carrying the pin. This operation is carried out with great precision around the axis of the pivot 19.
  • the hinged circle sector 16 carries a prismatic support 30 equipped with a vertical slide 31, the movable portion of which comprises a flat plate 32 to which is fixed a spindle support 33 with an articulated lid 34 locking by means of a mechanism 35, which fixes a cylindrical pin 36 so that its axis is perfectly horizontal with respect to the plane rotating sector 16.
  • the axis of the spindle 36 carries a drive disk 37, seen partially in section at the Fig. 4 and which is integral with a tip 38 with a central extension.
  • Said end piece 38 is arranged so as to form a first pair of surfaces, namely a front surface 39b and an outer cylindrical surface 39.
  • the extension of the endpiece further comprises a housing arranged to form a second pair surfaces, namely an inner cylindrical surface 40, parallel to the surface 39, and a front surface 40b, parallel to the surface 39b.
  • the first pair of surfaces serves as a seat for a first profiled grinding wheel 41 while the second pair of surfaces receives and guides the rear portion of a hub 42 supporting on its cylindrical seat 43 a second profiled grinding wheel 44.
  • a shoulder screw 45 rear and two nuts 46 and 47 respectively fix the hub 42 and grinding wheels 41 and 44 relative to the end piece 38 itself secured to the disc 37.
  • the control of the motor 48 of the spindle drive 36 is incorporated in the control programmed general transfer machine.
  • the two wheels 41 and 44 are perfectly centered on the axis of the spindle, which is itself horizontal.
  • the grinding wheel 41 is adjusted for the relief operation.
  • the axis 19 is in the plane of this wheel and cuts the axis of the spindle.
  • Wheel 44 performs the back clearance operation. It is placed at a distance from the wheel 41 sufficient for the radial displacement of the horizontal slide 9 allows the rear clearance along the entire length of the room.
  • the positions of the various organs of the combined station during the two operations are represented at Fig. 5 and 6 .
  • the position of the Fig. 5 corresponds to the calibration.
  • the workpiece being parallel to the direction of movement of the horizontal slide, the angle of the plane of the grinding wheel 41 corresponds to the inclination of the helical surfaces 2.
  • the spindle can be raised or lowered during the operation, if necessary , so as to realize the surfaces 4.
  • one of the advantages of the present invention is that it makes it possible to add to a transfer machine of a proven type elements which ensure two different operations in the same station.
  • the cutting and sharpening operations are the most time-consuming.
  • the offsetting operation which consists of a short removal of material over a short distance
  • the rear clearance operation which consists of a small removal of material, both only require operating times. reduced, the sum of which is less than or equal to the cutting or grinding time. The possibility of grouping the two operations of recalibration and rear clearance in the same station is therefore judicious.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Numerical Control (AREA)
  • Control Of Multiple Motors (AREA)

Claims (11)

  1. Transfermaschine (50) mit mehreren Stationen (51, 52, 53, 54) zur Bearbeitung von Bohrern, dadurch gekennzeichnet, dass sie zur Ausführung der aufeinander folgenden Arbeitsgänge an diesen Bohrern zum Hinterschleifen und Hinterschneiden eine Kombistation (54) umfasst, die einen einzigen Sockel (8) hat und die zwei Arbeitsgänge in derselben Position dieses Sockels ausführt.
  2. Maschine gemäß Anspruch 1, dadurch gekennzeichnet, dass diese Kombistation eine Drehspindel (36) umfasst, die auf einem von einer numerischen Steuerung betätigten beweglichen mehrteiligen Träger (9, 10, 16, 30, 32) angebracht ist, und dass zwei koaxiale Schleifscheiben (41, 44) an der Spindelachse befestigt sind.
  3. Maschine gemäß Anspruch 2, dadurch gekennzeichnet, dass der bewegliche mehrteilige Träger einen Kreissektor (16), der so angebracht ist, dass er sich um eine vertikale Achse (19) auf einem auf dem Sockel (8) beweglichen Tisch (10) dreht, einen mit dem Kreissektor (16) fest verbundenen vertikalen Aufbau (30, 31) und einen auf diesem Aufbau (30, 31) beweglichen und die Spindel (36) tragenden vertikalen Schlitten (32) umfasst, wobei die Spindelachse horizontal ist.
  4. Maschine gemäß Anspruch 3, dadurch gekennzeichnet, dass eine (41) der zwei an der Spindelachse befestigten Scheiben eine Hinterschleifscheibe ist, wobei der mehrteilige Träger so angeordnet ist, dass die Drehachse (19) des Kreissektors (16) die Spindelachse in der Ebene dieser Schleifscheibe schneidet.
  5. Maschine gemäß Anspruch 3, dadurch gekennzeichnet, dass der Tisch (10) auf einem horizontalen Schlitten (9) montiert ist, der sich in eine Richtung bewegt, die für eine bestimmte Position des Kreissektors parallel zur Spindelachse ist, wobei der Schlitten (9) vom genannten Sockel (8) getragen und geführt wird.
  6. Maschine gemäß Anspruch 3, dadurch gekennzeichnet, dass der auf einem horizontalen Schlitten (9) des Sockels (8) montierte Tisch (10) mehrere kreisbogenförmige Rillen (11 bis 14) umfasst, die ihren Mittelpunkt in der Drehachse (19) des Kreissektors haben, wobei der Letztere auf seiner dem genannten Tisch zugewandten Seite mit T-förmigen Blockierzapfen (20 bis 23) versehen ist, die in die genannten Rillen eingesetzt sind, um für das (passive) Blockieren des Kreissektors (16) zu sorgen.
  7. Maschine gemäß den Ansprüchen 4 und 5, dadurch gekennzeichnet, dass die zweite Scheibe (44) eine Hinterschneidscheibe ist, die koaxial vor der Hinterschleifscheibe (41) auf der Achse der Spindel (36) angebracht ist, wobei die genannte bestimmte Position des Kreissektors jene ist, die dem Arbeitsgang zum Hinterschneiden entspricht, und die Spindelachse parallel zur Bewegungsrichtung des horizontalen Schlittens (9) auf dem Sockel (8) ist.
  8. Maschine gemäß den Ansprüchen 4 und 5, dadurch gekennzeichnet, dass der Kreissektor (16) mit dem Tisch (10) verbunden ist durch eine vertikale Drehachse (19), Blockierzapfen (20 bis 23) und durch ein vom Tisch getragenes Antriebssystem (15), das seinerseits aus einem Motor (49) mit Zahnrad (27) mit vertikaler Achse, angebracht zwischen zwei Spannrollen (28, 29), und einem auf dem kreisbogenförmigen Rand (18) des Kreissektors (16) aufliegenden Riemen (24) besteht, der an seinen beiden Enden an diesem Rand befestigt ist und durch das von dem Zahnrad und seinen zwei Spannrollen gebildeten Antriebssystem läuft.
  9. Maschine gemäß Anspruch 8, dadurch gekennzeichnet, dass das Antriebssystem (15) des Kreissektors (16) so angeordnet ist, dass durch die Drehung dieses Kreissektors um seine Drehachse (19) die Achse der Werkstückspindel in eine Ausrichtung gebracht werden kann, die zur Bewegungsrichtung des horizontalen Schlittens (9) einen Winkel bildet, der ungefähr der Neigung der Windungen des Gewindes (2) des Bohrers bezüglich der Achse des Letzteren entspricht, so dass vom Arbeitsgang des Hinterschleifens zum Arbeitsgang des Hinterschneidens übergegangen werden kann oder umgekehrt.
  10. Maschine gemäß einem beliebigen der vorstehenden Ansprüche, dadurch gekennzeichnet, dass das Drehantriebssystem (15) des Kreissektors (16) einen Motor (49) mit numerischer Steuerung hat.
  11. Maschine gemäß Anspruch 10, dadurch gekennzeichnet, dass die Steuerung der Arbeitsgänge zum Hinterschleifen und Hinterschneiden in ein vollautomatisches Steuerungsprogramm der Transfermaschine zur automatisierten Herstellung von Bohrern integriert ist.
EP06705346A 2005-02-25 2006-02-17 Transfermaschine zur herstellung von bohrern und bits Not-in-force EP1851001B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP06705346A EP1851001B1 (de) 2005-02-25 2006-02-17 Transfermaschine zur herstellung von bohrern und bits

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP05405212A EP1695793A1 (de) 2005-02-25 2005-02-25 Vorrichtung zur Herstellung von Bohrerspitze und Bohrer
EP06705346A EP1851001B1 (de) 2005-02-25 2006-02-17 Transfermaschine zur herstellung von bohrern und bits
PCT/CH2006/000106 WO2006089444A1 (fr) 2005-02-25 2006-02-17 Machine transfert pour la production de mèches ou forets

Publications (2)

Publication Number Publication Date
EP1851001A1 EP1851001A1 (de) 2007-11-07
EP1851001B1 true EP1851001B1 (de) 2011-01-12

Family

ID=34942927

Family Applications (2)

Application Number Title Priority Date Filing Date
EP05405212A Withdrawn EP1695793A1 (de) 2005-02-25 2005-02-25 Vorrichtung zur Herstellung von Bohrerspitze und Bohrer
EP06705346A Not-in-force EP1851001B1 (de) 2005-02-25 2006-02-17 Transfermaschine zur herstellung von bohrern und bits

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP05405212A Withdrawn EP1695793A1 (de) 2005-02-25 2005-02-25 Vorrichtung zur Herstellung von Bohrerspitze und Bohrer

Country Status (8)

Country Link
EP (2) EP1695793A1 (de)
JP (1) JP2008531300A (de)
KR (1) KR20070100933A (de)
CN (1) CN101128283A (de)
AT (1) ATE494983T1 (de)
DE (1) DE602006019552D1 (de)
TW (1) TW200633812A (de)
WO (1) WO2006089444A1 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102490113B (zh) * 2011-12-06 2014-09-03 东莞市升力智能科技有限公司 一种高精度旋转定位工作台
CN102632436B (zh) * 2012-04-23 2014-06-11 郝玉民 钻头外锥面刃磨机
US10219068B2 (en) 2015-07-16 2019-02-26 Voyetra Turtle Beach, Inc. Headset with major and minor adjustments
KR101874088B1 (ko) * 2016-09-29 2018-07-10 (주)서진정공 각도 및 거리 조절이 가능한 피니싱 장치 및 이를 이용한 피니싱 방법
TWI681835B (zh) 2018-04-09 2020-01-11 瑞士商瑞士路勞曼迪有限公司 用於製造包含螺旋槽的工件之方法及研磨機及用於控制研磨機之程式
CN109531078B (zh) * 2019-01-14 2020-10-13 中国航发哈尔滨轴承有限公司 一种酚醛胶布分离型实体保持架的加工方法
CN113695997B (zh) * 2021-09-24 2024-10-01 曹荣国 一种便于调节的磨刀机
CN117506653B (zh) * 2024-01-08 2024-03-12 烟台精诚制版模具科技有限公司 一种烫金版精雕机用去毛边装置
CN118268625B (zh) * 2024-06-03 2024-09-17 三明市鸿丰机械设备制造有限公司 一种齿轮泵盖加工用钻孔装置及钻孔方法

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Publication number Priority date Publication date Assignee Title
US2477730A (en) * 1941-07-28 1949-08-02 Fouquet Eugene Automatic machine for grinding drills
CH655035A5 (de) * 1982-03-09 1986-03-27 Gottstein Fritz Einspannkopf fuer eine bohrer-schleifmaschine.
CH659790A5 (de) * 1983-06-09 1987-02-27 Paul Kocher Ag Vorrichtung zum positionieren von bohrern.
JPS62102960A (ja) * 1985-10-28 1987-05-13 Makino Furaisu Seiki Kk エンドミル用工具研削装置
DE3604536C1 (de) * 1986-02-13 1987-08-20 Albert Hammedinger Bohrerschaerfvorrichtung
CA2245802C (en) * 1996-02-29 2005-07-26 Komet Prazisionswerkzeuge Robert Breuning Gmbh Drilling tool for machine tools and method of producing the same
DE19962796A1 (de) * 1999-12-23 2001-07-05 Junker Erwin Maschf Gmbh Verfahren und Vorrichtung zum Schleifen von genuteten Werkzeugen
JP2002172510A (ja) * 2000-12-11 2002-06-18 Mmc Kobelco Tool Kk 極小径ドリル及びその製造方法

Also Published As

Publication number Publication date
JP2008531300A (ja) 2008-08-14
WO2006089444A1 (fr) 2006-08-31
TW200633812A (en) 2006-10-01
CN101128283A (zh) 2008-02-20
EP1851001A1 (de) 2007-11-07
KR20070100933A (ko) 2007-10-12
DE602006019552D1 (de) 2011-02-24
EP1695793A1 (de) 2006-08-30
ATE494983T1 (de) 2011-01-15

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