EP0459158A2 - Werkzeugmaschine zum Schleifen von Flächen - Google Patents

Werkzeugmaschine zum Schleifen von Flächen Download PDF

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Publication number
EP0459158A2
EP0459158A2 EP91106899A EP91106899A EP0459158A2 EP 0459158 A2 EP0459158 A2 EP 0459158A2 EP 91106899 A EP91106899 A EP 91106899A EP 91106899 A EP91106899 A EP 91106899A EP 0459158 A2 EP0459158 A2 EP 0459158A2
Authority
EP
European Patent Office
Prior art keywords
grinding wheel
workpiece
axis
swinging movement
guide plate
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.)
Withdrawn
Application number
EP91106899A
Other languages
English (en)
French (fr)
Other versions
EP0459158A3 (en
Inventor
Giulio Magni
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 EP0459158A2 publication Critical patent/EP0459158A2/de
Publication of EP0459158A3 publication Critical patent/EP0459158A3/en
Withdrawn legal-status Critical Current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
    • B24B41/00—Component parts such as frames, beds, carriages, headstocks
    • B24B41/04—Headstocks; Working-spindles; Features relating thereto
    • 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
    • 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
    • B24B5/02—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work
    • B24B5/16—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work for grinding peculiarly surfaces, e.g. bulged
    • B24B5/167—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work for grinding peculiarly surfaces, e.g. bulged for rolls with large curvature radius, e.g. mill rolls

Definitions

  • This invention concerns improvements in a machine tool for treating the surface of a workpiece using a grinding wheel.
  • the invention concerns improvements in machine tools which grind and finish the surfaces of cylindrical workpieces made of steel or other softer materials.
  • the two above operations can be carried out using machines that are the same as or similar to the kind of machines normally, and for the purposes of this patent application, known as "grinding machines”.
  • the problem a grinding machine has to solve usually is to give a rough-ground workpiece a shape and dimension complying with the design and then to reduce the roughness thereof and improve the appearance of the surface, all the above by removing material from the workpiece surface.
  • the two above shapes would constantly be error free and perfectly parallel, but actually there is a constant conflict between the grinding wheel in a grinding machine and the workpiece being worked caused by irregularities on the surface of the workpiece and the fact that the two aforementioned axis are not perfectly parallel, giving rise to several imperfections on the finished article.
  • central plane the plane including the perimeter of the grinding wheel at half of its thickness
  • the grinding wheel in the invented grinding machine is able to distancing itself from the workpiece in a radial direction, so that any irregularities in the shape of the workpiece or the grinding wheel itself have no undesirable effect, and then returns to touch the workpiece with the correct pressure once the irregularity has been passed.
  • the grinding wheel head is supported by a carriage which can move radially on a horizontal plane, thus enabling the grinding wheel to distance itself radially from the work piece, and is connected to a device that keeps the grinding wheel urging the workpiece at a constant operating pressure.
  • One aim of the invention described here is to obviate the drawbacks due to the fact that the axis about which the workpiece rotates is not perfectly parallel with that of the grinding wheel.
  • the invention is a grinding machine wherein the axis about which the grinding wheel rotates can effect a swinging movement on the plane on which the axis about which the grinding wheel and workpiece rotate.
  • the grinding wheel head is supported by the aforementioned carriage.
  • the carriage moves radially on a carriage guide plate which swings on a lower bench reciprocating along the piece.
  • the axis of said swinging movement lays in said central plane of the grinding wheel and is perpendicular both to the line of contact between the grinding wheel and workpiece and to the plane passing through the axis about which the grinding wheel and workpiece rotate.
  • Said swinging movement of the grinding wheel rotation axis can be either free or controlled.
  • the main advantages of the invention are the reduction of the time required for producing the piece and a finish quality higher than that obtained by grinding machines that are known in the art.
  • Both Figures 1 and 2 show that the X-X axis about which the grinding wheel head 1 swings is a vertical axis which passes through the point at which the central plane M of the grinding wheel 2 meets the line S at which the grinding wheel 2 and workpiece 3 touch.
  • the X-X axis is also perpendicular to the plane P which passes through the axis about which the grinding wheel and workpiece rotate.
  • Figure 3 and 4 both show the grinding wheel head 1, an electric motor 4 and a drive belt 5 which rotates the grinding wheel 2 about its axis in the direction shown by the arrow F. All of these components are held on a carriage 6 which runs on guides 7 attached to a guide plate 8, so that the carriage 6 can move radially in respect of the workpiece 3.
  • the aforementioned carriage guide plate 8 is pivoted above the bench 12 which reciprocates along the workpiece 3.
  • the carriage guide plate 8 has a vertical pin 13 on its lower surface which fits into a housing 14 in the bench 12, the X-X axis of which is at the point at which the central plane M of the grinding wheel meets the line at which the grinding wheel and workpiece touch (see Figure 2).
  • the carriage guide plate 8 is free to swing due to the effect of an irregularity in the shape of the workpiece, or because the axis about which the grinding wheel and workpiece rotate are not parallel.
  • the carriage guide plate 8 swings on the moment an irregularity comes into contact with the grinding wheel, or the rotation axis are no longer parallel, and returns to its normal position once the problem has been passed.
  • FIG. 5 diagrammatically shows an alternative solution wherein the carriage guide plate 8 is not free to swing, but is controlled by a conventional numerical control system C.
  • a section of micrometric toothed wheel 15 is attached to the lower surface of the carriage guide plate 8 and mesches a section of a micrometric toothed wheel 16 driven by a motor 17 attached to a bracked (nos shown), independent of the carriage guide plate 8.
  • the axis (not shown) of the motor 17 lays in the central plane M of the grinding wheel.
  • the swinging of the toothed wheel 16 can be controlled in such a way that the grinding wheel head , and thus the grinding wheel itself, take up the position adapted to possible convexity required by a workpiece, as bench 12 moves along the workpiece.
  • the machine is equipped with means designed to ensure that the grinding wheel is always held in a correct position in respect of the aforementioned X-X swinging axis.
EP19910106899 1990-05-16 1991-04-27 Improvements in a machine tool for surface grinding Withdrawn EP0459158A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT20325A IT1239921B (it) 1990-05-16 1990-05-16 Perfezionamenti in una macchina utensile per trattare la superficie di un pezzo mediante una mola
IT2032590 1990-05-16

Publications (2)

Publication Number Publication Date
EP0459158A2 true EP0459158A2 (de) 1991-12-04
EP0459158A3 EP0459158A3 (en) 1992-04-22

Family

ID=11165745

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910106899 Withdrawn EP0459158A3 (en) 1990-05-16 1991-04-27 Improvements in a machine tool for surface grinding

Country Status (3)

Country Link
EP (1) EP0459158A3 (de)
JP (1) JPH04226858A (de)
IT (1) IT1239921B (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0919333A1 (de) * 1997-11-28 1999-06-02 Waldrich Siegen Werkzeugmaschinenbau GmbH Walzenschleifmaschine
DE202013104940U1 (de) 2013-11-05 2013-12-03 Maschinenfabrik Herkules Hans Thoma Gmbh Schleifmaschinenvorrichtung mit einer schwenkbaren Schleifspindeleinheit
CN105150036A (zh) * 2015-10-09 2015-12-16 河北工业大学 一种砂轮架移动式电池极片轧辊磨床

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE434771C (de) * 1924-02-28 1926-09-29 Willibald Raym Dipl Ing Schleifmaschine zum Abschleifen der aeusseren harten Gusshaut von unrunden Hartgussstuecken, insbesondere von Hartgusswalzen
US1968550A (en) * 1930-05-28 1934-07-31 Black Rock Mfg Company Rubber roller grinding machine
GB1150104A (en) * 1965-09-23 1969-04-30 Waldrich Gmbh H A Process and apparatus for grinding smooth rolls with curved generators
FR2045293A5 (de) * 1970-04-06 1971-02-26 Inst Mestnoi Promysh
JPS62148146A (ja) * 1985-12-19 1987-07-02 Diesel Kiki Co Ltd 円筒物鏡面加工法
DE3726055A1 (de) * 1987-08-06 1989-02-16 Schloemann Siemag Ag Verfahren zum schleifen von walzen mit gekruemmter kontur

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE434771C (de) * 1924-02-28 1926-09-29 Willibald Raym Dipl Ing Schleifmaschine zum Abschleifen der aeusseren harten Gusshaut von unrunden Hartgussstuecken, insbesondere von Hartgusswalzen
US1968550A (en) * 1930-05-28 1934-07-31 Black Rock Mfg Company Rubber roller grinding machine
GB1150104A (en) * 1965-09-23 1969-04-30 Waldrich Gmbh H A Process and apparatus for grinding smooth rolls with curved generators
FR2045293A5 (de) * 1970-04-06 1971-02-26 Inst Mestnoi Promysh
JPS62148146A (ja) * 1985-12-19 1987-07-02 Diesel Kiki Co Ltd 円筒物鏡面加工法
DE3726055A1 (de) * 1987-08-06 1989-02-16 Schloemann Siemag Ag Verfahren zum schleifen von walzen mit gekruemmter kontur

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 11, no. 377 (M-649)(2824), 9 December 1987; & JP - A - 62148146 (DIESEL KIKI CO) 02.07.1987 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0919333A1 (de) * 1997-11-28 1999-06-02 Waldrich Siegen Werkzeugmaschinenbau GmbH Walzenschleifmaschine
DE202013104940U1 (de) 2013-11-05 2013-12-03 Maschinenfabrik Herkules Hans Thoma Gmbh Schleifmaschinenvorrichtung mit einer schwenkbaren Schleifspindeleinheit
CN105150036A (zh) * 2015-10-09 2015-12-16 河北工业大学 一种砂轮架移动式电池极片轧辊磨床
CN105150036B (zh) * 2015-10-09 2017-12-19 河北工业大学 一种砂轮架移动式电池极片轧辊磨床

Also Published As

Publication number Publication date
IT1239921B (it) 1993-11-23
IT9020325A0 (it) 1990-05-16
JPH04226858A (ja) 1992-08-17
IT9020325A1 (it) 1991-11-16
EP0459158A3 (en) 1992-04-22

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