EP0533605B1 - Procéde et machine d'ébarbage - Google Patents

Procéde et machine d'ébarbage Download PDF

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Publication number
EP0533605B1
EP0533605B1 EP92470022A EP92470022A EP0533605B1 EP 0533605 B1 EP0533605 B1 EP 0533605B1 EP 92470022 A EP92470022 A EP 92470022A EP 92470022 A EP92470022 A EP 92470022A EP 0533605 B1 EP0533605 B1 EP 0533605B1
Authority
EP
European Patent Office
Prior art keywords
grinding wheel
deburring
points
point
trajectory
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
EP92470022A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0533605A1 (fr
Inventor
Raymond Husson
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.)
Pont a Mousson SA
Original Assignee
Pont a Mousson 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 Pont a Mousson SA filed Critical Pont a Mousson SA
Publication of EP0533605A1 publication Critical patent/EP0533605A1/fr
Application granted granted Critical
Publication of EP0533605B1 publication Critical patent/EP0533605B1/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
    • B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
    • B24B49/18—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation taking regard of the presence of dressing tools
    • B24B49/183—Wear compensation without the presence of dressing tools
    • 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
    • B24B27/00—Other grinding machines or devices
    • B24B27/033—Other grinding machines or devices for grinding a surface for cleaning purposes, e.g. for descaling or for grinding off flaws in the surface

Definitions

  • the present invention relates to a method of deburring a series of parts along a joint line of each part by means of a rotary grinding wheel.
  • a method comprising the features of the preamble of claim 1 is known, for example, from JP-A-62-282 860.
  • Deburring is an important operation in the production of molded parts, in particular cast iron. It can indeed condition the good behavior of these parts in service. Thus, for example, in the case of the male end of a tubular part intended to penetrate into the socket of another tubular part with the interposition of a seal, the presence, along the resulting joint line molding, an extra thickness or a hollow can lead to a leak.
  • the deburring of parts in series by means of a rotating grinding wheel causes wear of the grinding wheel.
  • a common practice is to monitor the quality of deburring and, when it decreases, to straighten the active profile of the grinding wheel. This is costly and limits the grain size of the grinding wheel because it is difficult to straighten a coarse grinding wheel.
  • the increase in the size of the grains makes it possible, with a moderate expenditure of energy, to increase the productivity of the deburring.
  • the object of the invention is to provide a deburring process which avoids any operation of straightening the grinding wheel and which lends itself to automation on large series of parts even of varied shapes.
  • the deburring machine shown in Figures 1 and 2 is intended to perform serial deburring of tubular fittings in cast iron with three inlets which, in this example, are of two types: fittings 1 in Y and fittings 2 in U. These fittings are molded in two-part molds and therefore each have in their plane of symmetry, which is the joint plane of the mold, barbs which have to be removed with precision.
  • the machine comprises a carousel 3 for successively transferring the parts 1, 2 to a deburring station 4, a grinding device 5 and a measuring device 6.
  • the carousel 3 comprises a rotary plate 7 on which are mounted several pivoting supports 8.
  • the deburring station 4 comprises a motorized spindle 9 adapted to engage with the shaft of the support 8 present at this station and to give this support any desired angular orientation. Above station 4 is also provided a workpiece clamping cylinder 10 to vertical axis.
  • the grinding device 5 comprises a grinding wheel 11 in the form of a thin disc, for example 400 to 650 mm in diameter and 10 to 15 mm thick, the shaft of which, driven by a motor 12, is carried by a device 13 for moving X, Y.
  • the shaft of the grinding wheel is parallel to the direction X of movement and perpendicular to the direction Y.
  • the measuring device 6 comprises a light source 14, of the laser or other type, with a vertical axis ZZ, fixed in the vicinity of the deburring station 4 and at a higher level, and on the other hand a photoelectric cell 15 likewise axis, fixed at a level lower than that of station 4.
  • the grinding wheel 11 is new. It therefore has a known profile.
  • a part 1 or 2 being brought to station 4 by the carousel, placed in a predetermined position by the spindle 9 and blocked by the jack 10, the computer 16 calculates the trajectory of the grinding wheel until contact with the part and then along this to perform the deburring of its joint line.
  • the axis of the grinding wheel is brought to a distance yO from the optical axis ZZ greater than the largest radius of the grinding wheel, and the grinding wheel is moved along its axis until the predetermined point M considered is at the abscissa x0 of the ZZ axis.
  • the x, y coordinates are all taken with respect to a fixed reference point O secured to the machine frame.
  • the axis of the grinding wheel is moved parallel to itself, in the direction Y, until the light flux received by the cell 15 is reduced by half.
  • the dimension y1 of the axis of the grinding wheel which is also the radius of point M relative to the axis of the grinding wheel, is then stored by the computer 16.
  • the computer has in memory the coordinates of the n measured points, which allows it to determine those of the active or contact point for the next deburring operation. To do this, it proceeds as follows ( Figures 5 and 6).
  • the deburring of the segment AB is obtained by displacement of the point D from D1 to D2.
  • This variant makes it possible to carry out intermediate corrections between the successive calculations of the trajectory and is advantageous when it can be considered that the grinding wheel undergoes a uniform overall wear along the YY axis, relatively rapid, on which is superimposed a variation in shape. relatively slow.
  • the operations of deburring or measuring a point are carried out in masked time.
  • the method according to the invention is used for deburring burrs such as a three-dimensional joint line in space, of a part symmetrical with respect to the joint plane.

Landscapes

  • Mechanical Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Threshing Machine Elements (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)
  • Medicinal Preparation (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Surgical Instruments (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
EP92470022A 1991-08-22 1992-08-04 Procéde et machine d'ébarbage Expired - Lifetime EP0533605B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9110536A FR2680477B1 (fr) 1991-08-22 1991-08-22 Procede et machine d'ebarbage.
FR9110536 1991-08-22

Publications (2)

Publication Number Publication Date
EP0533605A1 EP0533605A1 (fr) 1993-03-24
EP0533605B1 true EP0533605B1 (fr) 1997-03-26

Family

ID=9416349

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92470022A Expired - Lifetime EP0533605B1 (fr) 1991-08-22 1992-08-04 Procéde et machine d'ébarbage

Country Status (11)

Country Link
US (2) US5321914A (fi)
EP (1) EP0533605B1 (fi)
AT (1) ATE150687T1 (fi)
AU (1) AU642093B2 (fi)
DE (1) DE69218530T2 (fi)
DK (1) DK0533605T3 (fi)
ES (1) ES2092970T3 (fi)
FI (1) FI923750A (fi)
FR (1) FR2680477B1 (fi)
GR (1) GR3022947T3 (fi)
NO (1) NO180708C (fi)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19537855C2 (de) * 1994-10-19 1998-01-29 Schaeffler Waelzlager Kg Verfahren zum Winkelpositionieren einer Steuerbuchse eines Drehschieberventils für Hydrolenkungen
US6155757A (en) * 1996-07-11 2000-12-05 Neos Robotics Ab Deburring method
DE10337489B4 (de) * 2003-08-14 2007-04-19 P & L Gmbh & Co. Kg Verfahren zur automatischen Werkzeugverschleißkorrektur
JP4550773B2 (ja) 2006-06-05 2010-09-22 株式会社三井ハイテック プロファイル研削盤
US11548188B1 (en) * 2018-08-27 2023-01-10 Yonani Industries Ltd. Veneer stone saw with rotary feed
TWI684731B (zh) * 2019-04-02 2020-02-11 技嘉科技股份有限公司 空調節能充氣裝置及車輛

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE225089C (fi) *
FR2274400A1 (fr) * 1974-06-14 1976-01-09 Citroen Sa Machine a tronconner
US4371942A (en) * 1981-03-18 1983-02-01 Cincinnati, Milacron Inc. Method and apparatus for controlling an automatic set-up cycle of operation
FR2544855B1 (fr) * 1983-04-20 1986-02-21 Snecma Procede et dispositif de mesure de precision de la hauteur des aubes d'un rotor
EP0128110B1 (en) * 1983-06-07 1988-10-26 United Technologies Corporation Method and apparatus for grinding turbine engine rotor assemblies
US4493168A (en) * 1983-06-16 1985-01-15 Coburn Optical Industries, Inc. Calibration gauge for computer-controlled lens generator, or the like
JPS61214944A (ja) * 1985-03-20 1986-09-24 Ngk Insulators Ltd ハニカム構造製品の移載装置
US4587769A (en) * 1985-05-21 1986-05-13 Ppg Industries, Inc. Grinding wheel wear compensation system
JPS6215076A (ja) * 1985-07-10 1987-01-23 Kobe Steel Ltd グラインダ砥石摩耗量検出装置
US4679358A (en) * 1986-03-20 1987-07-14 Amsted Industries Incorporated Grinding wheel advancing apparatus
JPH069783B2 (ja) * 1986-05-29 1994-02-09 トヨタ自動車株式会社 自動研削装置
US4872289A (en) * 1986-06-10 1989-10-10 Disco Abrasive Systems, Ltd. Cutter
JPS63237867A (ja) * 1987-03-23 1988-10-04 Daisho Seiki Kk 平面研削盤の砥石位置検出装置
JPH0199765A (ja) * 1987-10-12 1989-04-18 Tsushima Daikiyasuto:Kk ２サイクルエンジン用シリンダのダイカスト装置
JPH0669663B2 (ja) * 1988-03-15 1994-09-07 豊田工機株式会社 数値制御研削盤
US5025592A (en) * 1988-05-09 1991-06-25 Brother Kogyo Kabushiki Kaisha Machine tool having workpiece machining dimension and tool length measuring functions
JP2637488B2 (ja) * 1988-07-28 1997-08-06 豊田工機株式会社 数値制御研削盤
JPH02131868A (ja) * 1988-11-11 1990-05-21 Toyoda Mach Works Ltd 数値制御研削装置
JPH02280957A (ja) * 1989-04-20 1990-11-16 Koyama:Kk 鋳造品の仕上げ装置
IT1242582B (it) * 1990-10-05 1994-05-16 Intermac Srl Procedimento per la lavorazione in automatico a filo lucido del bordo di lastre di vetro di forma qualsiasi e macchina per la esecuzione di tale procedimento.

Also Published As

Publication number Publication date
AU642093B2 (en) 1993-10-07
NO923262D0 (no) 1992-08-20
FR2680477B1 (fr) 1995-12-08
AU2118992A (en) 1993-03-11
ATE150687T1 (de) 1997-04-15
FI923750A (fi) 1993-02-23
EP0533605A1 (fr) 1993-03-24
DK0533605T3 (da) 1997-10-13
NO180708B (no) 1997-02-24
US5321914A (en) 1994-06-21
ES2092970T1 (es) 1996-12-16
FI923750A0 (fi) 1992-08-20
ES2092970T3 (es) 1997-06-01
NO923262L (no) 1993-02-23
NO180708C (no) 1997-06-04
DE69218530T2 (de) 1997-08-07
GR3022947T3 (en) 1997-06-30
US5413522A (en) 1995-05-09
FR2680477A1 (fr) 1993-02-26
DE69218530D1 (de) 1997-04-30

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