EP1339527A1 - Procede et un dispositif pour fabriquer des moules pour courroies dentees - Google Patents

Procede et un dispositif pour fabriquer des moules pour courroies dentees

Info

Publication number
EP1339527A1
EP1339527A1 EP01995545A EP01995545A EP1339527A1 EP 1339527 A1 EP1339527 A1 EP 1339527A1 EP 01995545 A EP01995545 A EP 01995545A EP 01995545 A EP01995545 A EP 01995545A EP 1339527 A1 EP1339527 A1 EP 1339527A1
Authority
EP
European Patent Office
Prior art keywords
dressing
profile
grinding wheel
workpiece
toothed belt
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.)
Granted
Application number
EP01995545A
Other languages
German (de)
English (en)
Other versions
EP1339527B1 (fr
EP1339527B2 (fr
Inventor
Peter Bäumler
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
Family has litigation
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Application filed by Individual filed Critical Individual
Priority to SI200130403T priority Critical patent/SI1339527T2/sl
Priority to EP05007364A priority patent/EP1568441B1/fr
Publication of EP1339527A1 publication Critical patent/EP1339527A1/fr
Publication of EP1339527B1 publication Critical patent/EP1339527B1/fr
Application granted granted Critical
Publication of EP1339527B2 publication Critical patent/EP1339527B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • B24B5/02—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
    • B24B5/04—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 cylindrical surfaces externally
    • 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
    • B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
    • B24B19/02—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding grooves, e.g. on shafts, in casings, in tubes, homokinetic joint elements
    • 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
    • B24B5/04—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 cylindrical surfaces externally
    • B24B5/045—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 cylindrical surfaces externally with the grinding wheel axis perpendicular to the workpiece axis
    • 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
    • B24B53/00—Devices or means for dressing or conditioning abrasive surfaces
    • B24B53/04—Devices or means for dressing or conditioning abrasive surfaces of cylindrical or conical surfaces on abrasive tools or wheels
    • B24B53/047—Devices or means for dressing or conditioning abrasive surfaces of cylindrical or conical surfaces on abrasive tools or wheels equipped with one or more diamonds
    • 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
    • B24B53/00—Devices or means for dressing or conditioning abrasive surfaces
    • B24B53/06—Devices or means for dressing or conditioning abrasive surfaces of profiled abrasive wheels
    • B24B53/07—Devices or means for dressing or conditioning abrasive surfaces of profiled abrasive wheels by means of forming tools having a shape complementary to that to be produced, e.g. blocks, profile rolls
    • 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
    • B24B53/00—Devices or means for dressing or conditioning abrasive surfaces
    • B24B53/06—Devices or means for dressing or conditioning abrasive surfaces of profiled abrasive wheels
    • B24B53/08—Devices or means for dressing or conditioning abrasive surfaces of profiled abrasive wheels controlled by information means, e.g. patterns, templets, punched tapes or the like
    • B24B53/085—Devices or means for dressing or conditioning abrasive surfaces of profiled abrasive wheels controlled by information means, e.g. patterns, templets, punched tapes or the like for workpieces having a grooved profile, e.g. gears, splined shafts, threads, worms

Definitions

  • the invention relates to a method and a device for producing toothed belt molds.
  • Timing belt shapes are usually tubular steel rollers, which are straight-toothed on their circumference and as the inner core in the production of timing belts, e.g. made of Perbunan rubber or plastic.
  • the heated toothed belt material is pressed into the toothing of the toothed belt shape.
  • the toothing of the toothed belt forms thus forms the matrix of the toothed belt toothing.
  • toothed belt shapes by milling from cylindrical blanks.
  • the requirements for the exactness of the tooth geometry of timing belts have increased enormously. So the tooth surface should be as smooth as possible, i.e. if possible, do not have any images of the milling grooves in the toothed belt shapes.
  • milling toothed belt molds it is therefore usually necessary to re-treat the surface of the toothed belt mold.
  • This object is achieved in a method in which a die of the desired toothed belt toothing or the desired toothed wheel toothing is worked into the essentially cylindrical circumference of a workpiece by means of a cutting tool, in that at least one rotating grinding wheel with a profiled profile is used as the cutting tool scope is used, the circumferential profile corresponding to the profile of a complete tooth groove of the desired toothed belt shape.
  • the matrix for the toothed belt is therefore not milled, but is created by grinding with specially profiled grinding wheels with a grinding movement parallel to the longitudinal center axis of the workpiece. In this way, a quality of the surface of the finished workpiece can be achieved, which eliminates the need for post-treatment.
  • the tooth groove is understood to mean the complete area from the head of one tooth to the head of the adjacent tooth. The grinding of two adjacent tooth grooves thus leads to the generation of a complete tooth of the toothed belt shape, i.e. H. the outer diameter of the toothed belt shape is also ground.
  • the shrinkage of the toothed belt material during cooling in the manufacturing process must be taken into account.
  • profiled grinding wheels also allows to easily create the finest substructures in the tooth profile, e.g. B. a wavy sub-profile in the area of the tooth flanks. For this, e.g. B. channels parallel to the toothed belt axis are introduced into the profile. Timing belts with such sub-profiles are disclosed in DE 199 08 672 C1.
  • the method according to the invention can also be carried out in such a way that the peripheral profile of the grinding wheel is produced and / or dressed using a CNC-controlled dressing pin.
  • the dressing process is necessary due to the gradual wear of the grinding wheel.
  • the CNC control makes it possible to incorporate and dress almost any high-precision profiles in the circumference of the grinding wheel and thus to be able to produce varying tooth geometries in a relatively simple manner.
  • the method according to the invention can also be carried out in such a way that the circumferential profile is produced and / or dressed on a profile dressing element with a profiled dressing area.
  • the method according to the invention can also be carried out in such a way that the dressing of the rotating grinding wheel and the subsequent grinding of the workpiece takes place in a single straight-line translatory movement of the grinding wheel relative to the workpiece.
  • This can be achieved by suitable positioning of the profile dressing element.
  • the profile profile of the dressing area of the dressing element specifies the cutting profile exactly for each grinding operation, i.e. the dressing area must lie exactly in line with the desired cutting profile.
  • the workpiece is rotated through an angle corresponding to the pitch circle division of the tooth geometry.
  • the grinding wheel is guided over the dressing area of the dressing element for further dressing and in continuation of a straight-line translational movement for the next grinding process to the workpiece. Based on the assumption that the dressing area has not been significantly worn, the grinding wheel is always at the correct relative height relative to the workpiece after dressing. Any wear and tear on the dressing area can be compensated for by manual or automated adjustment.
  • the relative movement between the grinding wheel and the workpiece can be achieved by moving the grinding wheel in relation to a machine frame or by moving a tool holder.
  • a device comprising a workpiece holder, rotating means with which at least one essentially cylindrical workpiece clamped in the workpiece holder can be rotated in a controlled manner by a predetermined angle about its longitudinal center axis, and a cutting tool which can be moved relative to the workpiece holder is thereby achieved.
  • the at least one tool is a grinding wheel
  • dressing means are provided for dressing a specific circumferential profile of the at least one grinding wheel, the circumferential profile of the The grinding wheel can be dressed in such a way that it corresponds to the profile of a complete tooth groove of the desired toothed belt toothing.
  • the device according to the invention can also be designed such that the dressing means comprise at least one dressing pin having a hard body on its tip facing the grinding wheel circumference, the hard body being movable relative to the associated grinding wheel both in the axial direction and in the radial direction with respect to the grinding wheel and by means of a programmable control unit is controllable.
  • the dressing pin moves with its hard body, e.g. a diamond along the circumference of the rotating grinding wheel.
  • its hard body e.g. a diamond along the circumference of the rotating grinding wheel.
  • the at least one dressing pin can additionally be pivoted about a dressing pivot axis which is perpendicular to the axial and radial direction and extends through the hard body.
  • the dressing swivel axis provides an additional variation option for the desired profile shapes.
  • the hard body has an arcuate cross-section, at least in the area provided for machining the workpiece. The dressing swivel axis then runs perpendicular to this cross section through the center point of the hard body relative to the circular arc radius.
  • the device according to the invention can also be designed such that the dressing means comprise at least one profile dressing element with a profiled dressing area, the profile of the dressing area being the counter profile of at least part of the desired circumferential profile of the at least one grinding wheel.
  • This variant has the advantage that a complex CNC control is not required for the movement of the dressing means.
  • a profile dressing element is particularly useful when variations in the profile shape are not required.
  • the profile dressing element is a hard dressing body, for example made of diamond, with an edge-like dressing area.
  • the device according to the invention can also be designed such that the profile dressing element is a rotatable dressing roller with a rotationally symmetrical dressing area.
  • the grinding wheel is sufficiently stable to be able to achieve good removal with a high surface quality on the workpiece.
  • the grinding wheel material must still be so soft that the means used for dressing do not wear out.
  • the device according to the invention can also be designed in such a way that the at least one profile dressing element is positioned and adjustable relative to the workpiece holder in such a way that the projection of the profile of the dressing area on one end of the tool looks at the profile of the cross section of the tool in the direction of the longitudinal central axis of the at least one clamped tool corresponds to a desired cutting process.
  • Fig. 4 another grinding device with fixed profile diamonds
  • Fig. 5 a section of a profile diamond.
  • Fig. 1 shows a grinding device with a machine frame 1, on which a horizontally movable grinding table 2 is attached.
  • the grinding table 2 carries a workpiece holder 3, in which the cylindrical blank 4 for a toothed belt shape is clamped between a dividing device 16 and a counter bearing 17.
  • the blank 4 can be rotated in a controlled manner about a horizontal axis of rotation 7 by means of a turntable 5 via a rotary driver 5.
  • the axis of rotation 7 in the blank 4 simultaneously forms the longitudinal center axis of the blank 4.
  • the workpiece holder 3 comprises a high-precision direct measuring system, not shown separately here, which allows an exact adjustment of the angle of rotation.
  • a grinding wheel 9 is rotatably fixed to a grinding wheel holder 8.
  • the grinding wheel holder 8 can be moved in a highly precise manner in the vertical direction.
  • the counter profile of the toothed belt toothing has to be worked into the circumference of the blank 4, the toothing being rectilinear and constant in the direction of the longitudinal central axis of the blank 4.
  • the circumference now forms the die for the toothed belt toothing.
  • the grinding wheel 9 has a profile 10 on its circumference, which is visible in an enlarged view in FIG. 2.
  • the circumferential profile 10 corresponds to the grinding wheel 9 the desired profile of a tooth groove of the toothed belt shape.
  • the blank 4 is moved by means of the grinding table 2 with the grinding wheel 9 lowered so that the grinding wheel 9 cuts into the blank 4 the die for a complete tooth of the toothed belt over the entire length of the blank 4.
  • the blank 4 is then rotated by a predetermined angle ⁇ and the next tooth matrix is generated. With each grinding process, the outer diameter of the blank 4 is also ground, so that the entire lateral surface is ground in a finished toothed belt shape.
  • the peripheral profile 10 of the grinding wheel 9 is newly dressed with a dressing pin 11 before each grinding process. This is done with the help of a CNC controlled process.
  • the dressing pin 11 can be moved axially as well as in the radial direction with respect to the axis of rotation of the grinding wheel.
  • the dressing pin 11 also has a dressing pivot axis 12 which extends substantially perpendicular to the axial and radial direction and through the center of a round diamond 13 at the tip of the dressing pin 11. Equipped with such degrees of freedom, almost any profile can be entered into the circumference of the grinding wheel 9 with the dressing pin 11.
  • Accuracies of up to +/- 0.01 mm can be achieved.
  • it can make sense to provide a variable feed speed of the dressing pin 11, so that e.g. in areas with small radii in circumferential profile 10, the feed rate is lower.
  • a virtual diamond radius can be specified for the CNC control. In this way e.g. a constant deviation from the ideal line in the profile course can be easily corrected without having to change the entire CNC programming.
  • the grinding wheel is constantly cleaned with the aid of a pair of spray nozzles 14 (FIG. 1) which reaches both flanks of the peripheral profile 10 with sufficient uniformity.
  • a further pair of spray nozzles 15 is used, which cleans the grinding wheel 9 at high pressure and thus prevents its clogging.
  • the pair of nozzles 15 is arranged in the immediate vicinity of the grinding slips 9.
  • Fig. 4 shows an alternative structure of a grinding device. Corresponding parts in different figures are provided with the same reference numbers.
  • the blank 4a is shorter in FIG. 4 than in FIG. 1.
  • the tool holder 3 has the same distance in its sub-assemblies 16 and 17 as in FIG. 1.
  • a length adapter 18 provided with struts 20 is provided. With the aid of one or more length adapters 18, even with different lengths of blanks 4a, it is possible to avoid adjusting the sub-assemblies 16 and 17 of the workpiece holder 3 in order to maintain a high exactness in the distance, which has been achieved with great effort.
  • a profile diamond 19 is arranged, which is used for dressing the grinding wheel 9 and is shown enlarged in Fig.5.
  • the profile diamond 19 has a dressing edge 21, the profile of which corresponds to the profile of the desired tooth groove of the toothed belt shape.
  • the profile diamond 19 is aligned in such a way that, by a further movement of the grinding table 2, the grinding wheel 9 reaches the workpiece 4a in the correct working position without a vertical change in position and produces the die for a complete tooth of the toothed belt including the tooth base in a single grinding process.
  • the grinding wheel holder 8 is raised and the grinding table 2 is moved back to the starting position.
  • the grinding wheel holder 8 is lowered again, but because of the wear given during the grinding process, it is a small distance further than before the previous pass. In this way, the circumference of the grinding wheel 9 is newly dressed before each grinding.
  • the position of the profile diamond 19 can be changed in the vertical direction so that any wear and tear can be compensated for or an adaptation to different workpiece diameters is possible.
  • Machine frame 2. Grinding table 3. Workpiece holder
EP01995545A 2000-11-28 2001-11-28 Procede pour fabriquer des moules pour courroies dentees Expired - Lifetime EP1339527B2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SI200130403T SI1339527T2 (sl) 2000-11-28 2001-11-28 Postopek za izdelavo modela zobatega jermena
EP05007364A EP1568441B1 (fr) 2000-11-28 2001-11-28 Dispositif pour la production de forme d'une courroie dentée

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10059067A DE10059067A1 (de) 2000-11-28 2000-11-28 Verfahren und Vorrichtung zur Herstellung von Zahnriemenformen und Zahnrädern
DE10059067 2000-11-28
PCT/DE2001/004471 WO2002043919A1 (fr) 2000-11-28 2001-11-28 Procede et un dispositif pour fabriquer des moules pour courroies dentees

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP05007364A Division EP1568441B1 (fr) 2000-11-28 2001-11-28 Dispositif pour la production de forme d'une courroie dentée
EP05007364.2 Division-Into 2005-04-05

Publications (3)

Publication Number Publication Date
EP1339527A1 true EP1339527A1 (fr) 2003-09-03
EP1339527B1 EP1339527B1 (fr) 2005-06-01
EP1339527B2 EP1339527B2 (fr) 2011-04-27

Family

ID=7664981

Family Applications (2)

Application Number Title Priority Date Filing Date
EP05007364A Expired - Lifetime EP1568441B1 (fr) 2000-11-28 2001-11-28 Dispositif pour la production de forme d'une courroie dentée
EP01995545A Expired - Lifetime EP1339527B2 (fr) 2000-11-28 2001-11-28 Procede pour fabriquer des moules pour courroies dentees

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP05007364A Expired - Lifetime EP1568441B1 (fr) 2000-11-28 2001-11-28 Dispositif pour la production de forme d'une courroie dentée

Country Status (15)

Country Link
US (1) US7125316B2 (fr)
EP (2) EP1568441B1 (fr)
JP (1) JP2004524169A (fr)
KR (1) KR100783206B1 (fr)
CN (1) CN1216721C (fr)
AT (2) ATE296711T1 (fr)
AU (1) AU2002226281A1 (fr)
BR (1) BR0115685A (fr)
DE (3) DE10059067A1 (fr)
ES (2) ES2243593T5 (fr)
MX (1) MXPA03004648A (fr)
PL (1) PL201008B1 (fr)
PT (2) PT1568441E (fr)
SI (2) SI1568441T1 (fr)
WO (1) WO2002043919A1 (fr)

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JP5748582B2 (ja) * 2011-07-12 2015-07-15 三菱重工業株式会社 ねじ状工具の製作方法
CN103465134B (zh) * 2013-09-03 2016-09-14 宁波菲仕运动控制技术有限公司 一种定子割槽设备
CN103692353A (zh) * 2013-12-13 2014-04-02 江苏飞船股份有限公司 外圆磨床砂轮修整器
US10384326B2 (en) * 2015-12-21 2019-08-20 General Electric Company Surface treatment of turbomachinery
DE102016204273B4 (de) * 2016-03-15 2023-11-30 Erwin Junker Maschinenfabrik Gmbh Verfahren zur schleif-komplettbearbeitung von wellenförmigen werkstücken mit zylindrischen und profilierten abschnitten
US10096460B2 (en) * 2016-08-02 2018-10-09 Semiconductor Components Industries, Llc Semiconductor wafer and method of wafer thinning using grinding phase and separation phase
CN111941284B (zh) * 2020-07-27 2022-01-07 西安理工大学 一种辊环复合平面研磨修整装置
CN113263401A (zh) * 2021-06-16 2021-08-17 无锡微研股份有限公司 一种冲头备件的加工方法
CN114290133A (zh) * 2022-01-13 2022-04-08 无锡微研股份有限公司 一种空调模波纹刀批量加工方法

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Also Published As

Publication number Publication date
WO2002043919A1 (fr) 2002-06-06
SI1339527T2 (sl) 2011-06-30
ATE296711T1 (de) 2005-06-15
ES2243593T5 (es) 2011-08-30
BR0115685A (pt) 2003-09-09
ATE369939T1 (de) 2007-09-15
PL366126A1 (en) 2005-01-24
ES2243593T3 (es) 2005-12-01
EP1339527B1 (fr) 2005-06-01
MXPA03004648A (es) 2004-10-14
US20040029497A1 (en) 2004-02-12
SI1568441T1 (sl) 2008-02-29
PT1339527E (pt) 2005-11-30
DE50106409D1 (de) 2005-07-07
DE10059067A1 (de) 2002-06-06
EP1568441B1 (fr) 2007-08-15
KR20040028687A (ko) 2004-04-03
US7125316B2 (en) 2006-10-24
SI1339527T1 (sl) 2005-12-31
DE50112885D1 (de) 2007-09-27
KR100783206B1 (ko) 2007-12-06
PL201008B1 (pl) 2009-02-27
EP1339527B2 (fr) 2011-04-27
JP2004524169A (ja) 2004-08-12
AU2002226281A1 (en) 2002-06-11
PT1568441E (pt) 2007-11-13
CN1216721C (zh) 2005-08-31
ES2291996T3 (es) 2008-03-01
CN1501851A (zh) 2004-06-02
EP1568441A1 (fr) 2005-08-31

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