EP1353778B1 - Dual-schleifverfahren für stabmesser und schleifscheibe zur durchführung des verfahrens - Google Patents

Dual-schleifverfahren für stabmesser und schleifscheibe zur durchführung des verfahrens Download PDF

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Publication number
EP1353778B1
EP1353778B1 EP02716076A EP02716076A EP1353778B1 EP 1353778 B1 EP1353778 B1 EP 1353778B1 EP 02716076 A EP02716076 A EP 02716076A EP 02716076 A EP02716076 A EP 02716076A EP 1353778 B1 EP1353778 B1 EP 1353778B1
Authority
EP
European Patent Office
Prior art keywords
grinding
flank
grinding surface
toroidal
relief
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
EP02716076A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1353778A1 (de
Inventor
Horia Giurgiuman
Manfred Knaden
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.)
Klingelnberg AG
Original Assignee
Klingelnberg AG
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 Klingelnberg AG filed Critical Klingelnberg AG
Publication of EP1353778A1 publication Critical patent/EP1353778A1/de
Application granted granted Critical
Publication of EP1353778B1 publication Critical patent/EP1353778B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D7/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor
    • B24D7/18—Wheels of special form
    • 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
    • B24B3/34—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of turning or planing tools or tool bits, e.g. gear cutters
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T407/00—Cutters, for shaping
    • Y10T407/19—Rotary cutting tool
    • Y10T407/1952—Having peripherally spaced teeth
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T407/00—Cutters, for shaping
    • Y10T407/19—Rotary cutting tool
    • Y10T407/1952—Having peripherally spaced teeth
    • Y10T407/196—Varying in cutting edge profile
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T407/00—Cutters, for shaping
    • Y10T407/19—Rotary cutting tool
    • Y10T407/1952—Having peripherally spaced teeth
    • Y10T407/1962—Specified tooth shape or spacing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T407/00—Cutters, for shaping
    • Y10T407/19—Rotary cutting tool
    • Y10T407/1952—Having peripherally spaced teeth
    • Y10T407/1962—Specified tooth shape or spacing
    • Y10T407/1964—Arcuate cutting edge

Definitions

  • the invention relates to a grinding wheel and a method for grinding rod-shaped Knives, in particular carbide knives, for the production of curved toothed and hypoid wheels.
  • a well-known knife for producing arcuate teeth is as cuboid Bar formed whose shaft is trapezoidal at the end.
  • the trapezoidal End side has an open space, a side clearance area and an open area with the secondary clearance area connecting head surface and a clamping surface.
  • Document DE 199 10 746 describes a device and a method for profiling Grinding worms with a grinding wheel after the preamble of claim 1.
  • the toroidal grinding surface closes here to the tapered grinding surface.
  • a tapered grinding surface, a steplessly subsequent cylindrical grinding surface and a continuously adjoining thereto toroidal grinding surface can, by the method according to the invention, the free surface, the secondary flank and the chip surface with the tapered grinding surface and with their Transition region to the cylindrical grinding surface pre-ground by shaping grinding become.
  • the free surface and the auxiliary surface in the Connection thereto by fine grinding by generating loops. That's the way it is possible with a single grinding wheel, all three important surfaces, namely the Free surface, the auxiliary surface and the chip surface pre-sand, as well as the open space and fine grinding the auxiliary surface without re-clamping the knife, creating a fast, complete and accurate grinding of the knife can be performed.
  • the conical and the cylindrical Grinding surface a coarser grain than the toroidal grinding surface, so that the pre-grinding the secondary clearance and the free surface and the grinding of the chip surface at high Material removal can be done quickly.
  • the cylindrical grinding surface goes tangentially into the toroidal grinding surface, so that it is possible in an advantageous manner is, the head surface of the knife with a translational movement on the one hand on the vorschleleifen cylindrical grinding surface and with the adjoining toroidal Fine sanding the grinding surface.
  • the toroidal Grinding surface has a circular arc-shaped cross section with a second radius.
  • the first radius is larger than the second radius.
  • FIGS. 1 to 3 a bar knife is shown by way of example. There is a great variety of knives types. However, all have a shape like that described below (eg. however, the flank 40 could lie on the left side in FIGS. 1 to 3).
  • a cuboid or rod-shaped knife 1 has a cross-section rectangular shaft 2 and a trapezoidal end side 3.
  • a rake face C on the left flank 5 in Fig. 1 is a from the rake face C to At the rear side extending auxiliary surface B, at the in Fig. 1 right flank 6 a from the Span surface C to the rear extending free surface A and the top of the front side a formed from the rake face C to the rear extending head surface K.
  • a circumferential Cutting edge 4 is formed between the secondary free area B, the top surface K, the flank A and the rake face C.
  • shoulder surfaces As and Bs be formed in the transition from the open space A and the Mauokology B to The shaft 2 in the transition from the open space A and the Mauokology B to The shaft 2 can, as shown here, shoulder surfaces As and Bs be formed. As well can in the transition region of the rake face C to the shaft 2, as shown here, a curved Shoulder surface Cs be formed. Head, flank and shoulder are on the right in FIG. 2 denoted by 30, 40 and 50, respectively.
  • the shoulder surface As at the right flank 6 has a straight portion 7 and a curved portion 8, the one Radius Rs has.
  • the straight section 7 of the shoulder surface As goes tangentially into the curved section 8, which in turn merges tangentially at point F in the free surface A.
  • the free surface A goes in point L in a curved portion with the radius R2 tangentially over.
  • the curved section in turn passes tangentially into the head face K, and the head face K enters tangentially a curved surface 10 with a radius R1 tangentially across, which in turn tangentially adjoins the auxiliary free surface B.
  • the right flank 6 and left flank 5 each have a length PL, wherein the straight portion of the shoulder surface As or Bs is a length SL has.
  • the shapes of the profile of the edge 6 (length PL) and the profile of the edge 5 are depending on the toothing process and are in no case straightforward.
  • a grinding wheel 12 is shown, with which the blade according to FIGS. 1 to 3 ground can be.
  • the grinding wheel 12 has a rotation axis S to which the grinding wheel is constructed rotationally symmetrical.
  • the grinding wheel 12 has at one end side one to the rotation axis S rectangular, circular clamping surface 13. From the outer Circumference of the clamping surface 13 extends a tapered grinding surface Pp with a small Diameter d1 and a large diameter d2, where the small diameter d1 is located on the clamping surface 13.
  • the conical grinding surface Pp closes tangentially a radius Rs having curved Grinding surface 14, which in turn tangentially into a cylindrical grinding surface Ps passes.
  • a toroidal An abrasive surface G on which has a circular arc-shaped cross-section with a radius Rg.
  • the Toroidal grinding surface G extends radially inward and tangentially into a second, to the toroidal grinding surface G undercut conical surface 15 via.
  • the grinding wheel 12 may be constructed as a one-piece grinding wheel, wherein the conical Grinding surface Pp, the cylindrical grinding surface Ps and also the toroidal grinding surface G may have the same grain size and the same binder.
  • the grinding wheel 12 can also be used with different Kömungs relien of the abrasive be provided, wherein the tapered grinding surface Pp and the cylindrical grinding surface Ps have a coarser grain of the abrasive than the toroidal abrasive surface G. Es is advantageous, the different Kömungsdorfn the abrasive with the same bond applied. To the areas with different Kömungsdorfn of the abrasive can be identified, a small puncture (not shown) between the toroidal Be provided grinding surface G and the cylindrical grinding surface Ps.
  • a binder for the abrasive may be either a galvanic bond or resin as a binder be provided.
  • the abrasive can be either CBN (for HSS) or diamond (for HSS) HM) can be used.
  • the disk 12 in two parts, wherein the toroidal Abrasive surface G on a ring (not shown) would be provided on the cylindrical Grinding surface Ps would be mounted by means of a flange connection. It would be possible the respective area with the optimal for each task abrasive and To provide binder. Also it is possible the two areas depending on the respective To replace wear independently at different times.
  • FIG. 5 shows a grinding machine provided with the grinding wheel 12 according to FIG. 4 is and with which the knife 1 can be ground.
  • the machine has a table 17, on which a carriage 18 is movable along an X-axis back and forth.
  • a column 19 is along a Z-axis perpendicular to the X-axis back and forth.
  • On the column 19 is a second carriage 20 along a Y-axis perpendicular to the X-axis and the Z-axis and movable.
  • the X-axis, the Y-axis and the Z-axis form a rectangular coordinate system.
  • the grinding wheel 12 is fixed in rotation.
  • a clamping device 21 for clamping the knife 1 is attached.
  • the Clamping device is relative to the carriage 18 by a pivot axis C-C and a mounted on the pivot axis C-C perpendicular axis of rotation A-A.
  • the X-axis, the Y-axis, Z-axis, A-A-axis and C-C-axis can not only position, but also drive CNC-controlled trajectories.
  • the rake surface C is aligned parallel to the tapered grinding surface Pp such that the Shoulder surface Cs of the rake face C on the curved grinding surface 14 with the radius Rs is positioned.
  • the knife 1 After grinding the flank A, the knife 1 is opposite the tapered grinding surface Pp retracted substantially along its longitudinal shaft extension and under a Angles such against the cylindrical grinding surface Ps and the toroidal Grinding surface G oriented that with a movement in the direction of an arrow 22 on the At the head 30 of the knife 1 there is an allowance 24 initially by means of the cylindrical grinding surface Ps is removed and towards the end of the movement along the arrow 22 at the toroidal Grinding surface G is moved past and a top surface K is generated.
  • the knife is the first guided by a superimposed movement along the toroidal grinding surface G, so that both the radius R1 and the remaining comma-shaped allowance ground become. Since the radius Rg of the toroidal grinding surface G is smaller than the radius Rs of the curved grinding surface 14, is the finishing process of the minor relief surface B when it is reached of the point Fb completed, so that the shoulder surface Bs through the toroidal Grinding surface G is no longer ground.
  • the knife 1 is reoriented so that the flank A at the point Fa at a peripheral point the toroidal grinding surface G is positioned. Through a superimposed movement of the knife 1 and the grinding wheel 12 is located on the free surface A. comma-shaped allowance ground to the final shape of the knife 1. In the same Orientation of the knife 1 are due to a continued superimposed movement of the Radius R2 and the top surface K finish ground. Also when grinding the open space A with the toroidal grinding surface G is as in the finishing of the auxiliary surface B the Shoulder surface As of the free surface A no longer ground. The transition between commuting and generating takes place exactly at the foot F, so that the shoulder is not unnecessarily straightened becomes.
  • a shoulder angle Sw is formed between the right flank 6 and the shoulder surface As and also between the left flank 5 and the shoulder surface Bs.
  • a pendulum angle Pw is formed on the grinding wheel 12 between the tapered grinding surface Pp and the cylindrical grinding surface Ps.
  • the respective shoulder angle Sw is determined by the pendulum angle Pw and the spatial orientation between the blade 1 and the grinding wheel 12.
  • the correlation R S > R G exists between the shoulder radius Rs and the generation radius Rg.
  • the shoulder or pendulum angle has both a geometric and a technological significance.
  • Fig. 6c shows the choice of an angle of attack AW, on both sides of a position with an angle of attack AW can be chosen from zero degrees.
  • About the angle of attack AW, of the Shoulder angle (30 ° or 45 °) may be different, the allowance for the subsequent Finishing optimized.
  • the comma-shaped allowance that arises in this way becomes this one Way optimally designed. If a certain number of knives with a given Angle of attack AW has been ground before it becomes a significant wear comes, moved to another angle.
  • Each angle of attack is in the working area of the grinding wheel 12 results in a removal or flattening.
  • next angle of attack AW is chosen so that the next flattening to the previous one Flattening connects, so that at the end of the work area in cross section of a Polygonzug is bounded, wherein the polygon sides are formed from the flats.
  • the width of the permissible flattening is, for example, a maximum of one order of magnitude of 1 ⁇ m.
  • the significant wear in corresponds to the work area G of the grinding wheel 12, compared.
  • time for the time in which there is a significant amount of wear and tear it will change to another Switched angle.
  • the toroidal grinding surface can be G optimally exploit and thereby maximize tool life.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
EP02716076A 2001-01-27 2002-01-22 Dual-schleifverfahren für stabmesser und schleifscheibe zur durchführung des verfahrens Expired - Lifetime EP1353778B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10103755A DE10103755C1 (de) 2001-01-27 2001-01-27 Schleifscheibe zum Schleifen von stabförmigen Messern für die Herstellung von bogenverzahnten Kegel- und Hypoidrädern und zugehöriges Verfahren zum Schleifen
DE10103755 2001-01-27
PCT/EP2002/000600 WO2002058888A1 (de) 2001-01-27 2002-01-22 Dual-schleifverfahren für stabmesser und schleifscheibe zur durchführung des verfahrens

Publications (2)

Publication Number Publication Date
EP1353778A1 EP1353778A1 (de) 2003-10-22
EP1353778B1 true EP1353778B1 (de) 2005-08-31

Family

ID=7671984

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02716076A Expired - Lifetime EP1353778B1 (de) 2001-01-27 2002-01-22 Dual-schleifverfahren für stabmesser und schleifscheibe zur durchführung des verfahrens

Country Status (8)

Country Link
US (1) US6709318B2 (es)
EP (1) EP1353778B1 (es)
JP (1) JP3981010B2 (es)
AT (1) ATE303231T1 (es)
DE (2) DE10103755C1 (es)
ES (1) ES2247310T3 (es)
MX (1) MXPA02009468A (es)
WO (1) WO2002058888A1 (es)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10304430B3 (de) 2003-02-04 2004-09-23 Oerlikon Geartec Ag Verfahren zum Kalibrieren einer Schleifmaschine
DE10324432B4 (de) * 2003-05-28 2005-06-02 Klingelnberg Ag Profilgeschärftes Stabmesser zur Herstellung von Kegel- und Hypoidrädern und Verfahren zum Profilschärfen eines solchen Stabmessers
DE102004057596B4 (de) * 2004-04-22 2009-06-04 Reishauer Ag Profilierzahnrad und Verfahren zum Profilieren einer Schleifschnecke
CN108406621A (zh) * 2017-02-10 2018-08-17 蓝思科技（长沙）有限公司 烧结砂轮棒及其使用方法
DE102022203390A1 (de) 2022-04-05 2023-10-05 Contitech Antriebssysteme Gmbh Schleifwerkzeug

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1811374B2 (de) * 1968-11-28 1973-05-30 Pahhtzsch, Gotthold, Prof Dr Ing e h , 3300 Braunschweig Schneidzahn fuer kreissaegeblaetter oder scheibenfoermige fraeser geringer dicke
US4012820A (en) * 1975-06-16 1977-03-22 The Motch & Merryweather Machinery Company Circular saw having teeth with an improved metal breaking geometry
DE2733756A1 (de) * 1977-07-27 1979-02-08 Saegen Mehring Schleifscheibe zum nachschleifen von bandsaegen
GB8812706D0 (en) * 1988-05-27 1988-06-29 Iseli & Co Ag Apparatus & methods for grinding tool cutter teeth
US4993505A (en) * 1989-12-18 1991-02-19 Smith International, Inc. Diamond insert grinding process
DE19910746B4 (de) * 1999-03-11 2007-02-08 Reishauer Ag Vorrichtung und Verfahren zum Profilieren von Schleifschnecken

Also Published As

Publication number Publication date
US20030054731A1 (en) 2003-03-20
ATE303231T1 (de) 2005-09-15
JP2004516952A (ja) 2004-06-10
JP3981010B2 (ja) 2007-09-26
EP1353778A1 (de) 2003-10-22
WO2002058888A1 (de) 2002-08-01
DE50204078D1 (de) 2005-10-06
ES2247310T3 (es) 2006-03-01
US6709318B2 (en) 2004-03-23
DE10103755C1 (de) 2002-05-16
MXPA02009468A (es) 2004-05-14

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