EP0307805B1 - Schleifmaschine - Google Patents

Schleifmaschine Download PDF

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Publication number
EP0307805B1
EP0307805B1 EP88114723A EP88114723A EP0307805B1 EP 0307805 B1 EP0307805 B1 EP 0307805B1 EP 88114723 A EP88114723 A EP 88114723A EP 88114723 A EP88114723 A EP 88114723A EP 0307805 B1 EP0307805 B1 EP 0307805B1
Authority
EP
European Patent Office
Prior art keywords
grinding
point
hinge
swivel plate
vertical axis
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
EP88114723A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0307805A2 (de
EP0307805A3 (en
Inventor
Herbert Setzer
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.)
Fortuna Werke Maschinenfabrik GmbH
Original Assignee
Fortuna Werke Maschinenfabrik 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 Fortuna Werke Maschinenfabrik GmbH filed Critical Fortuna Werke Maschinenfabrik GmbH
Publication of EP0307805A2 publication Critical patent/EP0307805A2/de
Publication of EP0307805A3 publication Critical patent/EP0307805A3/de
Application granted granted Critical
Publication of EP0307805B1 publication Critical patent/EP0307805B1/de
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
    • B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
    • B24B5/01—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor for combined grinding of surfaces of revolution and of adjacent plane surfaces on work
    • 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
    • B24B41/00—Component parts such as frames, beds, carriages, headstocks
    • B24B41/04—Headstocks; Working-spindles; Features relating thereto

Definitions

  • the invention relates to a grinding machine with a grinding spindle which can be moved in a horizontal plane relative to a workpiece, the grinding spindle driving a grinding wheel which can be rotated about a horizontal axis and is arranged on a swivel plate which is relative to a base plate is rotatable about a vertical axis, a measuring device for detecting the relative rotational position of the swivel plate and base plate being provided, which has a first sensor element rigidly connected to the base plate and a second sensor element rotatable with the swivel plate.
  • a grinding machine of the type mentioned above is known from document EP-A-131 366.
  • the known grinding machine is numerically controlled and has a swiveling grinding slide.
  • a rotation sensor is provided, the rotor of which is connected to the pivot shaft of the grinding slide and can be rotated together with it, while its stator is fixedly connected to the machine bed and is arranged close to, but spaced from, the rotor .
  • the known grinding machine is a commercially available rotary sensor which is connected directly to the rotating elements.
  • the integration of the rotation sensor in the swiveling grinding slide requires considerable design measures.
  • the rotation sensor in this known machine is difficult to access, so that not only a complicated structure, but also lengthy work is required to maintain and possibly replace the pivoting device and the measuring device in the known grinding machine.
  • a dividing device with a turntable is known.
  • the turntable can be swiveled around a vertical axis.
  • the turntable has a circumferential ring gear on its underside, which is connected to a drive motor via several, partially angled gear sets.
  • the drive motor is flanged to the side of a housing of the dividing head.
  • the drive pinion connected to the output shaft of the drive motor thus meshes with the ring gear of the rotary table on the one hand via several gear sets, but on the other hand the drive pinion is also connected via further gear sets to a rotary encoder, which is located next to the drive motor in a drive housing that is laterally connected to the housing of the Partial apparatus is flanged.
  • the multiple ratios in both power flows from the drive motor to the turntable on the one hand and to the rotary encoder on the other hand are chosen so that the rotary encoder rotates synchronously with the rotary table and gives a pulse-shaped output signal for each degree of rotation of the rotary table.
  • the invention is therefore based on the object of developing a grinding machine of the type mentioned at the outset such that a simple and robust structure is created for the measuring device and that the measuring device allows the rotational position of the grinding spindle to be detected with the precision of rotary angle sensors which is possible today.
  • the sensor elements are arranged outside the swivel plate in a manner known per se and in that the second sensor element is connected to the swivel plate via a gear and in that the gear is a joint parallelogram.
  • the object on which the invention is based is completely achieved in this way because the measuring device, which is now arranged far outside the swivel plate, is almost freely accessible with the two sensor elements, so that it can not only be electrically wired in a simple manner but also for occasional maintenance and Repair work is easily accessible.
  • the gear mechanism between the swivel plate and the second sensor element can be designed to be mechanically highly precise, so that the second sensor element, be it angularly synchronous or via a translation, follows the rotary movement of the swivel plate without noticeable measurement errors.
  • the measure of providing an articulated parallelogram has the essential advantage that a gearbox is used that has only parts that can be rotated relative to one another, which has the advantage that the very high precision of rotary bearings that can be used today can be exploited without taking into account, for example, hysteresis errors must be, as they occur when converting rotary movements into linear movements via gears or the like.
  • the articulated parallelogram has the advantage that the rotary bearings arranged at the corner points of the parallelogram pivot by the same angle when the parallelogram is pivoted, so that an angularly synchronous rotation of the second sensor element in this case is possible through the exclusive use of rotary movements.
  • a first corner point of the joint parallelogram lies on the vertical axis and a second point adjacent to the first corner point lies at the location of the second sensor element.
  • This measure has the advantage that the location of the vertical axis, i.e. the pivot point of the grinding spindle is "mirrored" at the point of the second sensor element, so that the second sensor element follows the rotational movement of the grinding spindle in the form of the rotational movement about the vertical axis directly and in synchronism with the angle.
  • a practical embodiment of this variant is characterized in that a first articulation point for a first articulated rod is provided at a point on the swivel plate spaced from the vertical axis, the free end of which is pivotally connected to a second articulated rod at an articulation point, the other end of which is in turn a second articulation point carries the second sensor element, which is the length of the first articulated rod equal to the length of the connecting line between the second articulation point and the vertical axis and the length of the second articulated rod equal to the length of the connecting line between the first articulation point and the vertical axis.
  • This measure has the advantage that the desired joint parallelogram with reflection of the rotary movement of the grinding spindle into a point outside the swivel plate by using only two joint rods with three joint points is possible. In this way, a particularly compact, robust arrangement, which can also be used under the harsh operating conditions of machine tools, is produced, in which the measuring device can be arranged easily accessible outside the range of movement of the swivel plate.
  • a variant of this exemplary embodiment is preferred, in which a pivot bearing acting in the first articulation point is axially clamped, while a pivot bearing acting in the articulation point is axially displaceable.
  • This measure has the advantage that a lifting and lowering movement of the swivel plate in the direction of the vertical axis is possible without this interfering with the function of the measuring device.
  • Such a lifting and lowering movement of the swivel plate can advantageously be used to lift it off the base plate on an air cushion when swiveling the swivel plate, so that only low torques are required when swiveling the swivel plate with the units arranged thereon.
  • 10 designates an external cylindrical grinding machine as a whole.
  • a rotationally symmetrical workpiece 13 is clamped between a workpiece spindle 11 and a tailstock 12 and extends along a first axis 14, which is usually referred to as the z-axis.
  • the workpiece is rotated about the z-axis in defined angular steps and one then speaks of a so-called c-axis.
  • the grinding machine 10 is only shown and explained for reasons of clarity as an external cylindrical grinding machine, but the invention is by no means limited to this application, because the following explanation also applies to internal cylindrical grinding machines or to grinding machines for non-rotationally symmetrical ones Can obtain workpieces.
  • a grinding carriage 20 is slidably arranged in a second axis 21, which is usually referred to as the x-axis.
  • the second axis 21 is set to the first axis 14 by an angle ⁇ 1 which e.g. Can be 55 °.
  • the grinding carriage 20 carries a grinding spindle 22, which drives a grinding wheel 23, the grinding wheel 23 being rotatable about a grinding wheel axis 24, which is usually perpendicular to the second axis 21.
  • the grinding spindle 22 can be rotated with the grinding carriage 20 overall about a third axis 25, which runs perpendicular to the plane of the drawing in FIG. 1 as the vertical axis.
  • This rotation of the grinding spindle 22 about the vertical axis 25 can be used, for example, to grind the outside of the workpiece shown enlarged in FIG. 1a, the outer contour of which has a first, thicker cylindrical section 26, a subsequent conical section 27 and then a second cylindrical section 28 has a smaller diameter.
  • the grinding wheel 23 is first pivoted into a position in which its front grinding surface runs parallel to the lateral surface of the cylindrical section 26.
  • the grinding spindle 22 is rotated about the vertical axis 25 until the front grinding surface of the grinding wheel 23 now runs parallel to the conical outer surface of the conical section 27, without the workpiece having to be reclamped or the grinding wheel 23 resharpened .
  • the second cylindrical section 28 can then also be ground after resetting the angular position of the grinding wheel 23.
  • a linear drive 30 serves to pivot the grinding carriage 20 arranged on a swivel plate 50 with the grinding spindle 22.
  • the linear drive 30 can be pivoted with its housing in a first swivel bearing 31 on the base plate 16 about a vertical axis parallel to the vertical axis 25.
  • a second pivot bearing 32 on the pivot plate 50 which also has a vertical pivot axis, an actuating rod 34 is articulated, which can be moved linearly in the housing of the linear drive 30. In this way, a crank drive is created for pivoting the sliding carriage 20 about the vertical axis 25.
  • an articulated triangle 40 is provided.
  • the articulated triangle 40 has a first rod 41, which is hinged at one end to a first articulation point 42 on the swivel plate 50.
  • a second rod 43 of the articulated triangle 40 is connected to a second one Articulation point 44 is pivotally attached to the base plate 19.
  • the free ends of the rods 41, 43 are connected at a pivot point 45.
  • the articulated triangle 40 defined by the corner points 42, 44 and 45, is pivoted when the linear drive 30 is actuated to pivot the grinding carriage 20.
  • Fig. 1 shows a first extreme rotational position of the grinding carriage 20, in which it is pivoted relative to the z-axis 14 by an angle ⁇ 1 in the order of 55 °.
  • the actuating rod 34 of the linear drive 30 is completely retracted and the articulated triangle 40 assumes the first extreme position shown in FIG. 1.
  • the second articulation point 44 has pivoted during this pivoting movement by pivoting the second rod 43 by a certain angular amount, which corresponds exactly to the angular amount of the pivoting of the grinding carriage 20 about the vertical axis 25, because points 25, 42, 44 and 45 lie on the corner points of a parallelogram.
  • a rotation angle sensor is therefore attached, which is actuated by the second rod 43 relative to the base plate 19 and reproduces the rotational position of the grinding spindle 22 in an angle-synchronous manner.
  • the grinding spindle 22 with the swivel plate 50 measures an angle ⁇ between the two swivel positions in which the x-axis moves from 21 to 21.
  • the first articulation point 42 moves in the direction of an arrow 62 into a position 42 'and the articulation point 45 in the direction of an arrow 63 in a position 45'.
  • the points in the third, vertical axis 25 and in the second articulation point 44 do not change because they are fixed in space.
  • the second rod 43 is pivoted by the same angle ⁇ as the imaginary connecting line 60 to 60 'and this pivoting angle ⁇ corresponds exactly to the pivoting angle of the x-axis from 21 to 21'.
  • a measuring device for detecting the rotational movement of the grinding spindle 22 can therefore be arranged in the second articulation point 44, a sensor element of the measuring device being rigidly connected to the base plate 19, while a second sensor element is rotated by the second rod 43 in an angle-synchronized manner with respect to the grinding spindle 22.
  • FIG. 4 A practical embodiment of the articulated triangle 40 is shown in FIG. 4.
  • a pin 70 is fastened to the swivel plate 50 in a rotationally rigid manner by means of a screw connection 71.
  • the pin 70 runs in a pivot bearing 72 which is axially braced relative to a sleeve 73.
  • the rod 41 rigidly attached to the sleeve 73 can therefore rotate in the pivot bearing 72 about an axis 74, but cannot move axially along the latter.
  • the first rod 41 is rigidly connected at the articulation point 45 to a sleeve 80, which can be rotated about an axis 84 relative to a pin 82 via an axially non-tensioned rotary bearing 81 and can also be displaced along this axis 84.
  • the pin 82 is rigidly seated in a further sleeve 83, which in turn is rigidly connected to the second rod 43.
  • the arrangement described above makes it possible for the swivel plate 50 to carry out a lifting and lowering movement in the direction of an arrow 85, although the height of the second rod 43 cannot be adjusted.
  • the swivel plate 50 moves together with the entire articulation point 42 and the first rod 41 together with the sleeve 80, which runs axially via the pivot bearing 81 which is not braced axially on the pin 82.
  • This arrangement thus represents a compensation option for the lifting and lowering movement of the swivel plate 50, which is required to swivel the swivel plate 50 between two angular positions ⁇ .
  • the second rod 43 is rigidly connected to a sleeve 90, in which a pin 91 sits in a rotationally rigid manner.
  • the pin 91 is held axially clamped in a lower pivot bearing 92, but can rotate about an axis 100.
  • a holding part 93 which is rigidly connected to the base plate 19, receives the lower pivot bearing 92 and an upper pivot bearing 94, in which the pin 91 runs with its upper end.
  • An end 95 of the pin 91 projecting beyond the upper pivot bearing 94 is provided with markings 96. Near the end 95 there is a sensor element 97 which interacts with the markings 96. Measuring signals can be removed from the sensor element 97 via a connection 98.
  • the arrangement of the sensor element 97 and the end 95 with markings 96 is encapsulated by means of a housing 99.
  • the sensor element 97 and the markings 96 are only representative of a large number of possible sensor technologies, such as are used for detecting the angle of rotation. Examples are optical, magnetic or resistive Techniques called as they are known per se in the technology of the rotation angle sensors and need not be explained again here.

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)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Machine Tool Units (AREA)
EP88114723A 1987-09-16 1988-09-09 Schleifmaschine Expired - Lifetime EP0307805B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3731006 1987-09-16
DE19873731006 DE3731006A1 (de) 1987-09-16 1987-09-16 Schleifmaschine

Publications (3)

Publication Number Publication Date
EP0307805A2 EP0307805A2 (de) 1989-03-22
EP0307805A3 EP0307805A3 (en) 1990-02-28
EP0307805B1 true EP0307805B1 (de) 1992-03-04

Family

ID=6336076

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88114723A Expired - Lifetime EP0307805B1 (de) 1987-09-16 1988-09-09 Schleifmaschine

Country Status (4)

Country Link
US (1) US4934106A (ja)
EP (1) EP0307805B1 (ja)
JP (1) JPH0197565A (ja)
DE (2) DE3731006A1 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106514475A (zh) * 2016-11-24 2017-03-22 无锡市伟丰印刷机械厂 一种烧结钕铁硼生产用铁棒高效抛光除锈设备

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5138799A (en) * 1991-04-12 1992-08-18 Bryant Grinder Corporation Probe positioning mechanism for a radius dresser
US5562526A (en) * 1993-03-29 1996-10-08 Toyoda Koki Kabushiki Kaisha Method and apparatus for grinding a workpiece
US8474140B2 (en) * 2008-04-29 2013-07-02 Caterpillar Inc. High precision grinding and remanufacturing of machine components
DE102016012915B4 (de) * 2016-10-21 2018-07-26 KAPP Werkzeugmaschinen GmbH Schleifarm zum Schleifen innenprofilierter Werkstücke mit einer Schleifscheibe
CN113414647A (zh) * 2021-07-19 2021-09-21 福建省立新船舶工程有限公司 一种基于卧式机床的砂光设备

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US807323A (en) * 1904-12-28 1905-12-12 Samuel J Shimer And Sons Inc Grinding-machine.
GB1203584A (en) * 1966-12-02 1970-08-26 Cincinnati Milling Machines Lt Improvements in or relating to grinding and like machines
DE2011090A1 (de) * 1970-03-09 1971-09-23 Schaudt Maschinenbau Gmbh, 7000 Stuttgart Verfahren und Vorrichtung zum Schleifen von zylindrischen und konischen Sitzen
DE2122539A1 (de) * 1971-05-06 1972-11-16 Schaudt Maschinenbau Gmbh, 7000 Stuttgart Vorrichtung zum Schleifen von zylindrischen und konischen Sitzen
JPS5945081B2 (ja) * 1977-08-08 1984-11-02 豊田工機株式会社 回転テ−ブルの回転割出し装置
SU956257A2 (ru) * 1980-11-10 1982-09-07 Харьковское Опытно-Конструкторское Бюро Шлифовальных Станков Способ управлени процессом шлифовани
DK14583A (da) * 1982-01-20 1983-07-21 Saint Gobain Vitrage Fremgangsmaade og apparat til positionsstyring af vaerktoejet paa en kantbearbejdningsmaskine til glasplader
US4513540A (en) * 1983-07-11 1985-04-30 Ex-Cell-O Corporation Grinding machine with CNC pivotable workhead
GB2144881B (en) * 1983-08-09 1986-10-15 Honda Motor Co Ltd Automatic workpiece engaging apparatus in grinding machines
SU1238954A1 (ru) * 1984-06-06 1986-06-23 Всесоюзный Проектно-Технологический Институт Энергетического Машиностроения Станок дл резки заготовок
JPS6165762A (ja) * 1984-09-06 1986-04-04 Nippon Sheet Glass Co Ltd 板状体の端面研磨装置
DE3523012A1 (de) * 1985-06-27 1987-01-02 Schaudt Maschinenbau Gmbh Schwenkbarer schleifspindelstock
JPS6294260A (ja) * 1985-10-17 1987-04-30 Toyoda Mach Works Ltd 数値制御研削盤

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
SOVIET INVENTIONS ILLUSTRATED Sektion Mechanik, Woche K28, Zusammenfassung Nr. 710445, P61, 24.August 1983, Derwent Publications Ltd, London, GB; & SU - A - 956257 (KHARK GRIND MACH). *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106514475A (zh) * 2016-11-24 2017-03-22 无锡市伟丰印刷机械厂 一种烧结钕铁硼生产用铁棒高效抛光除锈设备
CN106514475B (zh) * 2016-11-24 2018-09-21 无锡市伟丰印刷机械厂 一种烧结钕铁硼生产用铁棒高效抛光除锈设备

Also Published As

Publication number Publication date
US4934106A (en) 1990-06-19
DE3731006A1 (de) 1989-03-30
JPH0197565A (ja) 1989-04-17
EP0307805A2 (de) 1989-03-22
DE3868805D1 (de) 1992-04-09
EP0307805A3 (en) 1990-02-28

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