EP1533078B1 - Outil de meulage scindé - Google Patents

Outil de meulage scindé Download PDF

Info

Publication number
EP1533078B1
EP1533078B1 EP03026039A EP03026039A EP1533078B1 EP 1533078 B1 EP1533078 B1 EP 1533078B1 EP 03026039 A EP03026039 A EP 03026039A EP 03026039 A EP03026039 A EP 03026039A EP 1533078 B1 EP1533078 B1 EP 1533078B1
Authority
EP
European Patent Office
Prior art keywords
grinding
grinding tool
parts
width
tool
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 - Fee Related
Application number
EP03026039A
Other languages
German (de)
English (en)
Other versions
EP1533078A1 (fr
Inventor
Erwin Junker
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.)
Erwin Junker Grinding Technology AS
Original Assignee
Erwin Junker Grinding Technology AS
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
Priority to ES03026039T priority Critical patent/ES2305390T3/es
Application filed by Erwin Junker Grinding Technology AS filed Critical Erwin Junker Grinding Technology AS
Priority to DE50309740T priority patent/DE50309740D1/de
Priority to EP03026039A priority patent/EP1533078B1/fr
Priority to PCT/EP2004/011216 priority patent/WO2005046936A1/fr
Priority to KR1020067011544A priority patent/KR101095949B1/ko
Priority to BRPI0416500-4A priority patent/BRPI0416500A/pt
Priority to JP2006538675A priority patent/JP4667387B2/ja
Priority to CA2545633A priority patent/CA2545633C/fr
Priority to US10/579,451 priority patent/US7235007B2/en
Priority to CN2004800330665A priority patent/CN1878636B/zh
Priority to RU2006120465/02A priority patent/RU2348506C2/ru
Publication of EP1533078A1 publication Critical patent/EP1533078A1/fr
Application granted granted Critical
Publication of EP1533078B1 publication Critical patent/EP1533078B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D5/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor
    • B24D5/06—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor with inserted abrasive blocks, e.g. segmental
    • B24D5/066—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor with inserted abrasive blocks, e.g. segmental with segments mounted axially one against the other
    • 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
    • B24B5/06—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 internally
    • B24B5/10—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 internally involving a horizontal tool spindle
    • 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

Definitions

  • the invention relates to a grinding tool which consists of at least two parts.
  • Grinding tools in which several, in particular also different thickness grinding wheels are braced together to form a grinding wheel, are for example off DE 41 03 090 C1 known.
  • Such grinding wheel packages are used in particular where contours are to be ground, wherein the contours are then assembled by means of correspondingly part-profiled individual grinding wheels to form a corresponding overall package adapted to the contour to be ground.
  • the width to be ground can also be directly influenced. However, this is always associated with a considerable structural changeover.
  • such a grinding wheel package does have the advantage that only the latter need to be replaced in the event of a more rapid wear of the side disks of the grinding wheel package.
  • this is associated with a high retooling and thereby significantly higher total cycle time.
  • CBN / DIA grinding wheels with CBN, / diamond or similar abrasives
  • CBN / DIA grinding wheels with CBN, / diamond or similar abrasives
  • plan-side dressing required also in these CBN / DIA grinding wheels also leads to a reduction of the width of the grinding wheel and thus to a deviation of the width of the bearing from the predetermined target value when working in Einstechschleif compiler without lateral offset of the grinding wheel or the workpiece.
  • the plan shoulders are sanded one after the other in the storage area to be ground. This in turn results in much higher processing times and processing costs.
  • a grinding tool which consists of at least two detachably interconnected parts which form a grinding wheel-like body with an abruptly formed on the peripheral area grinding surface, the parts with an adjustment so relative to each other adjustable and fixed in the respective adjustment that the grinding wheel-like body is adjustable with respect to its grinding width.
  • This known grinding tool corresponds to the preamble of claim 1 of the application.
  • the known grinding tool is formed by two solid, consisting entirely of the grinding material grinding wheels, one of which is firmly connected in the middle of the disc with the grinding spindle and the other in the center of the disc with a piece of pipe.
  • the grinding spindle is inserted through the pipe section and secured there in the mutual axial position by a screw connection and a clamping device.
  • the known grinding tool serves to grind bearings and grooves, which is ground not only with the annular peripheral surface, but also with the flat side surfaces.
  • the grinding width can be changed thereby; In particular, it is possible to compensate for the wear of the side surfaces by adjusting again.
  • the two grinding wheels engage with each other facing annular areas on which there is a toothing, one inside the other, so that their common peripheral surface is continuously abrasive.
  • the known adjustment mechanism should work precisely, the set width may not necessarily be accurate to the extent of the grinding wheel.
  • the grinding wheel-like body can spread after the fixation of the two grinding wheels, or its ends can oscillate or flutter to a certain extent. A precise concentricity and a perfect grinding result can not be achieved with it. This applies in particular to the high speeds of the grinding machines that are usual today in production and the high grinding performance achieved by CBN or diamond grinding wheels.
  • the invention is therefore based on the object to improve the known grinding tool of the latter type such that better grinding and concentricity properties can be achieved.
  • the adjusting mechanism for adjusting and fixing the two parts relative to each other at least three adjustment / adjustment units, which are arranged circumferentially spaced on the grinding tool on one side at substantially the same angle.
  • one of the two parts forming the grinding tool is fixedly arranged on a drive spindle, whereas the second part, on which the setting / adjustment units are arranged, is fastened displaceably or adjustably against the first part fixedly mounted on the spindle.
  • a centering device namely a centering collar is provided, by means of which or in each Boothneinstellposition a reliable centering of both parts of the grinding tool is guaranteed to each other.
  • a centering of the grinding tool according to the invention on the spindle nose is possible. This can be done by different systems that are already known. Here, for example, this centering by a cone, a three-point recording according to DE 33 22 258 A1 respectively. DE 34 05 556 C1 or a hole with a "tight" fit done.
  • the grinding tool according to the invention has at least two releasably interconnected parts, which form a grinding wheel-like body in the connected state.
  • This grinding wheel-like body has an interrupted grinding surface on its peripheral area.
  • the two releasably interconnected parts are adjustable relative to one another with an adjusting mechanism and fixable in the respective adjustment that the grinding wheel-like body is adjustable with respect to its grinding width.
  • the width adjustment can be carried out so that, for example, for a piercing process to be ground, the grinding width is adjustable to a maximum of twice the abrasive pad thickness.
  • the grinding tool according to the invention can be dressed over the complete contour contour including the plane surfaces after the width adjustment by a substantially equal amount, for example 10 ⁇ m.
  • This uniform dressing makes it possible, on the one hand, to always restore the dimensional accuracy of the grinding tool by dressing and to maintain the actual dimension between the planters.
  • a grinding tool is obtained in which the grains are broken / broken / sharpened, so that the cutting ability of the grinding tool is fully restored. In this way will avoided that the grains are smoothed on the flat grinding sides by dressing.
  • the grinding width of the grinding tool according to the invention by means of the adjusting mechanism is infinitely adjustable. Due to this infinitely variable adjustability of the width of the grinding tool, it can be advantageously achieved that, depending on the grain size of the coating of the grinding tool, the always optimum dressing size over the entire grinding range, i. can be dressed on all surfaces to be ground, so that after dressing a dimensionally accurate and accurate grinding wheel is created.
  • the grinding wheel-like body in addition to the grinding region which is interrupted at the peripheral region, may be provided on at least one but preferably at both of its outer side surfaces.
  • Such an abrasive surface can be provided, for example, by applying an abrasive coating on the peripheral side of the abrasive tool and at least partially into the lateral surfaces around the outer edges of the circumferential region.
  • a peripheral region and a shoulder can advantageously be used, for example during plunge grinding grinding of two grinding surfaces on the grinding tool or, for example, at a bearing point, a peripheral region and two spaced planar surfaces.
  • the width adjustability of the grinding tool it is possible to adjust the grinding tool by the amount required to compensate the grinding wheel wear by the dressing grinding operations.
  • the grinding tool with its two parts abrasive in the form of CBN / DIA coating, wherein the two parts of the grinding tool are either completely or partially or partially coated with abrasive coating.
  • the two parts forming the grinding wheel-like body each have on their inner, ie each facing axial sides each conforming teeth, which are also referred to as face gears.
  • the two releasably interconnected parts are adjusted relative to each other in the grinding tool according to the invention, whereby the grinding width to be ground with the grinding tool is changed.
  • the two parts are guided together so that they remain centered to each other and at the same time preclude during the grinding process to avoid movement against each other.
  • a cylindrical guide is preferably provided outside of the adjustment / adjustment units, in which respect occurring forces are taken over by adjusting screw-related contact forces.
  • the teeth which realize an engagement of the two parts forming the divided grinding wheel-like body, furthermore have surfaces, which are preferably arranged in planes extending substantially perpendicular to the axis of rotation of the grinding tool. This means that these surfaces form edges which extend circumferentially on the grinding tool over a certain distance, but not over the entire circumference. It is preferred if these surfaces of the teeth are arranged in planes which extend inclined to the axis of rotation of the grinding tool. In such a case, these lying to each other, the division of the grinding tool performing dividing edges in plan view of the peripheral surface of the grinding tool obliquely to the circumferential direction, but without reaching from one side edge of the grinding tool to its opposite, lying in the other part outer edge.
  • separating edges ensures that during the grinding process, the free gap between the two grinding wheel parts, ie the parting line, on which or on which no abrasive grains are arranged, are minimized in terms of whose or their extension to the extent. Due to the oblique arrangement of these edges on the parting lines their distance from each other in the circumferential direction is relatively low, so that the grains lying on the edge during grinding at the moment in which they participate in the grinding process, compared to the other grains only slightly increased loads have to take up.
  • mutual overlaps it should be understood that with respect to this circumferential line, each of the parts of the grinding tool has an area in which the toothing overlaps this imaginary peripheral line, followed by an area in which the circumferential line is engaged. That the teeth extend substantially over the entire radial extent of the flat surfaces of the grinding tool to its outer periphery.
  • the other part In the area in which the one part engages under the peripheral line, the other part has a correspondingly designed cross-toothing, which is designed to be congruent with the undergrip. In this way, it is ensured that when adjusting the two parts of the grinding tool relative to each other to achieve a greater width up to about 175% of the original, smallest possible width, which can be ground with the grinding tool in the grinding insert over the entire width always Abrasive is brought into engagement with the surface to be ground, even in the areas in which the actual parting line is formed. Because the parting line runs at most sections in a plane perpendicular to the axis of rotation of the grinding tool.
  • the shape of the teeth forming the overlaps on the outer circumference is stair-shaped, trapezoidal, sawtooth-like, pointed-tooth-like or a combination thereof with respect to the imaginary circumferential line.
  • the teeth are wave-shaped, wherein different waveforms are possible. It only needs to be taken care that the two together to the Grinding tool connected parts are reliably centered and fixed relative to each other even during or after their adjustment.
  • the grinding wheel-like body is preferably formed as a split grinding wheel and if this grinding wheel has grinding areas both on the peripheral area and on its two side areas, a desired width dimension to be ground can be ground in a piercing grinding operation due to the adjustability become.
  • the higher wear on the flat surfaces which leads to a falling below a predetermined nominal size, can be readjusted or compensated, so that the grinding tool according to the invention can be used again while maintaining the required length dimension, for example between the face shoulders of such bearing.
  • a longer tool life can be achieved with the same grinding time.
  • the tool costs of the grinding process can thus be significantly reduced. The latter is especially true because CBN / DIA-equipped grinding wheels still represent a significant cost factor.
  • the setting / adjustment units are preferably arranged as far as possible outside in the direction of the outer periphery of the grinding tool according to the invention, so that when adjusting the grinding width to be ground and the adjustment made after the adjustment of the two grinding wheel parts to each other a spread of these parts is avoided , If, however, certain fine-scale deviations of the concentricity properties of the two grinding wheel parts should occur with each other during a bracing, then these are reliably compensated by a dressing process carried out in each case after the adjustment has been made.
  • the dressing thus not only serves to produce a cutting-smooth grinding wheel, as is common practice and known, but also serves to generate the best possible dimensional and concentricity properties after adjustment and clamping of the two grinding wheel parts to each other, so that after an adjustment and completed dressing the invention addressedver ause, ie split abrasive tool behaves substantially the same as an undivided grinding wheel in terms of its grinding properties.
  • the teeth are preferably arranged so that they do not touch with their substantially radially extending side edges.
  • the non-positive connection of the two grinding wheel parts is in any case designed so that a reliable torque transmission is possible without a relative movement to each other in or against the direction of rotation is possible.
  • Another advantage of a non-positive clamping of the two grinding wheel parts together is that the manufacturing accuracy of the teeth can be relatively low, since they form no guide surfaces of the parts in their adjustment relative to each other and not contribute to the torque transmission.
  • the adjusting mechanism or the adjusting / adjusting units are mechanically operated manually.
  • the mechanical design and manual adjustability has the advantage that the structure of the adjustment is thereby relatively simple and inexpensive.
  • the setting / adjustment units are automatically actuated. In such a case, the complexity of the grinding tool and thus its cost is increased.
  • the automatic operation offers significant advantages to compensate for wear-related grinding width deviations of the grinding tool during the non-productive process. In these non-productive times, the grinding wheel is not in the active grinding process.
  • the automatic operation of the adjustment / adjustment units has decisive advantages in a complex automation of the grinding process.
  • For measuring sensors are preferably present, which make a permanent monitoring of the width to be ground on the workpiece and generate a relevant signal, which is recordable and evaluable. On the basis of these records, a width readjustment of the width-adjustable grinding tool then takes place.
  • a plunge grinding process in which grinding surfaces are also present on the respective outer side surfaces, is thus an improvement of Given accuracy of the workpiece and the life or the usability of such a grinding tool according to the invention.
  • a scale is preferably provided by means of which it is possible to read how far apart the two parts forming the grinding tool are from each other.
  • the teeth have in their radially formed planes to each other no guiding function and the two grinding wheel parts are formed so that their relative displacement to each other in the smallest possible width of the grinding tool are still formed in the interior spaces between the two grinding wheel parts are in the interior of the split grinding wheel tool channels exist, which extend substantially from the region of attachment of the grinding tool to the spindle to directly in the grinding area on the abrasive coating.
  • these gaps or channels coolant is passed directly into the immediate grinding area.
  • coolant is preferably introduced under pressure into the grinding tool according to the invention and is deflected in the interior spaces and either there under pressure or by the prevailing as a result of rotation of the grinding tool centrifugal action or as a result of both effects in the interior of the divided grinding tool in the direction of the outer circumference and is thus passed directly to the immediate grinding area.
  • the centering of the two grinding wheel parts which serves a centered orientation of the two grinding wheel parts to each other, circumferentially preferably formed only in sections on a collar, so that there are sufficiently large channels or spaces for transporting the cooling liquid inside the grinding tool according to the invention.
  • FIG. 1 is a half-sectional view of the grinding tool according to the invention 1 according to a first embodiment of the invention.
  • a rotationally driven grinding spindle 2 is provided in a conventional manner, at one end, which is also referred to as a spindle nose, a first part 5, also referred to as the base body, plugged and fixed in position , The fixation of this part 5 also takes place in a conventional manner by means of a clamping flange.
  • a clamping flange 3 secures a force-locking position fixing of the part 5 on the grinding spindle 2 via a plurality of circumferentially distributed clamping screws 4.
  • the grinding tool 1 according to the invention has a further part 7, which is designed as a displaceable body and with respect to the part 5 by means of an adjustment so adjustable is that the effective grinding width, which can be achieved with the grinding tool according to the invention, is adjustable.
  • Both the part 5 and the part 7 have a CBN abrasive coating 6 in their circumferential direction.
  • Both outwardly facing side surfaces 9, 10 of the abrasive article according to the invention ie in FIG. 1 the left side surface 9 of the spindle 2 fixed part 5 and the right outer side 10 of the relatively movable part 7, are also provided with such an abrasive coating. Due to the division of the grinding tool in the width direction, grinding portions 6A and 6B of the two parts 5 and 7 in the circumferential direction and grinding portions 6C and 6D of the two parts 5 and 7 are provided in the side surfaces 9, 10, respectively.
  • the part 7 is provided by means of three adjustment / adjustment units 11, 23, which are arranged in the circumferential direction at an equal angle, preferably 120 degrees, based on an adjusting screw 23, spaced from each other.
  • the adjustment / adjustment units 11, 23 are mechanically adjustable by means of a set screw 23.
  • the part 7 is centered on an outer centering shoulder 8, which is also referred to as a centering collar, so that the grinding surfaces 6A and 6B are always arranged on the circumferential side of the grinding tool at the same circumferential level.
  • This radially as far outside as possible Implementszentritation is realized via a match of a few micrometers, over which good concentricity properties of the rotating in the grinding process at high speeds grinding tool according to the invention can be achieved.
  • this outer centering shoulder 8 Due to the relatively high centrifugal forces of the rotating grinding tool, this outer centering shoulder 8 is arranged outside the adjusting / adjusting units 11, 23. In such an external centering is on the inner collar, ie the inner Zentrierbund 14 a game of, for example, 0.3 mm provided.
  • the adjusting screws 23 of the adjusting / adjusting units 11, 23 are each supported on an abutment surface or plane surface 24 of the part 5 of the grinding tool.
  • the adjusting screw 23 is provided with a scale 11. Adjusting screw 23 is set to the same scale value for adjustment for each of the adjustment / adjustment units to set the grinding wheel to the desired width to ensure that the grinding tool remains centered and balanced in mass with each adjustment.
  • the grinding tool when plunge grinding after repeated grinding of bearings, the grinding surfaces 6C and 6D have experienced a wear out of the grinding tolerance measure, by adjusting the screw 23 by a certain scale value on the scale 11, the grinding tool can be adjusted in its width. As a result, the grinding tool is again fully usable for further grinding operations, without the need for a new grinding wheel or parts of it must be replaced, which is usually then dressed.
  • the clamping of the part 7 on the grinding tool relative to the part 5 by tightening a clamping screw 12, which is located in the interior of the screw 23 on the same center axis.
  • Clamping screws 13 serve that the part 7 of the grinding tool, which is arranged relative to the part 5 is relatively displaceable, in the direction of the rotation axis 22, on the thread flank of the adjusting screw 23 is pressed radially outward after the clamping screw 12 tightened has been. This ensures that the part 7 is clamped to the part 5 non-positively and without play (see also Fig. 3 and related description).
  • FIG. 2 shows a side view of the grinding tool according to the invention from the side of the part 7 on the adjustment / adjustment units 11, 23.
  • section line AA which is the basis for the half-sectional view of FIG. 1 forms.
  • three adjustment / adjustment units 11, 23 are arranged, which have in their interior a clamping screw for fixing the position of each set width of the grinding tool according to the invention.
  • clamping screws 13 which serves to eliminate existing in the screw 23 relative to the part 7 in the thread game. That is, by means of the clamping screws 13 is finally achieved backlash in the threads of the setting / adjustment units.
  • FIG. 3 is a partial sectional view in an enlarged view of the setting / adjustment unit shown.
  • the adjusting screw 23 By means of the adjusting screw 23, the distance of the relatively movable grinding wheel parts 5 and 7 is adjusted.
  • the adjusting thread is designed as a fine thread with small pitches, so that a very accurate adjustment of the respective grinding wheel width is possible. These threads are at least turned or ground.
  • a scale 11 On the screw 23, a scale 11 is provided, via which the actually set width of the grinding wheel is accurately read.
  • the adjusting screw 23 is supported on the in Fig. 3 not shown abutment surface 24 from.
  • the adjusting screw 23 by turning the adjusting screw 23 the distance between the two parts 7 and 5 to each other and thus the grinding wheel width is adjusted adjustable.
  • the clamping screw 12 By means of the clamping screw 12, the selected on the desired exact grinding wheel width adjustment of the grinding wheel parts 7 and 5 is fixed to each other so that a non-positive connection of the adjusting screw 23 takes place on the abutment surface 24. By means of this frictional connection, the torque transmission to the movable grinding wheel part 7 takes place.
  • the additionally present clamping threaded pins 13 are tightened, which are likewise supported on the abutment surface 24. By tightening this clamping screws 13 is thus achieved that all threads in the adjustment / adjustment mechanism 11, 23 is free of play.
  • FIG. 4 is a plan view of the peripheral portion of the grinding tool according to the invention shown, in which the part 7 with the part 5 by interlocking teeth form a single grinding tool.
  • the respective parts 5 and 7 overlap this imaginary circumference 17 with overlaps 15, 16 in regions where one of the two parts 5, 7 has an overlap with respect to the imaginary peripheral line 17 and the other of the two parts 5.7 has a corresponding subgripage.
  • the teeth are designed so that they fit together congruent shape.
  • FIG. 5 another embodiment is shown according to the invention, in which the joints which are formed on the surfaces 20,21 of the teeth, in planes which are inclined to an axis perpendicular to the axis of rotation 22 are arranged.
  • the joints which are formed on the surfaces 20,21 of the teeth in planes which are inclined to an axis perpendicular to the axis of rotation 22 are arranged.
  • FIG. 6 is a further embodiment of the grinding tool according to the invention shown, in which the joints between the parts 7 and 5 are formed wave-shaped.
  • the names are with those according to Fig. 4 and 5 identical.
  • FIG. 7 the basic process during dressing of a non-adjustable in the width grinding wheel according to the prior art by means of a cup-shaped dressing wheel 27 is shown with diamond coating 28.
  • This grinding wheel has an abrasive coating 6, which is arranged both on the front side and in a partial region of the side surface 9 is.
  • this grinding wheel has in terms of their width exactly the measure, which represents the distance between the plan shoulders at the bearing point. Therefore, a dressing of the abrasive coating 6 on the side surface 9 is not possible.
  • dressing would mean that the gauge between the plan shoulders of a storage area would no longer be achievable. Therefore, in such grinding wheels, dressing is performed substantially only on the peripheral side.
  • the dotted line 29 represents the contour of the grinding wheel before the dressing process.
  • the dimension between the original contour 29 and the contour after dressing is removed.
  • such a dressing depth must be generated that the grains after dressing in addition to producing the ideal as possible concentricity properties of the grinding wheel sharpened again, but not smoothed. This again creates a cutting-friendly grinding wheel.
  • the dressing wheel 27 is guided with the diamond coating 28 around the radius in the transition region from the peripheral region to the side region of the grinding wheel.
  • the truing amount runs to zero towards the end of the radius of the grinding wheel.
  • plunge grinding it is precisely this area of the transition of the radius into the side surfaces, which has to perform the maximum grinding work on the flat shoulders of the bearing surface.
  • the peripheral grinding area in which there is a linear contact with the workpiece to be ground, in the area of immersion of the transition areas to the sides 9 and 10 of the grinding wheel, there is a surface engagement (see Fig. 9 ).
  • the entire grinding work can only be done by the front abrasive grains;
  • the underlying, located directly in the side surface abrasive grains contribute to the actual grinding process not or only insignificantly.
  • the Abrichtaufbox to the radius does not run by full 90 ° in the direction of the side surfaces, but reaches the value 0 already at an angle of, for example, 87 °. A dressing on the side edge is thus not performed.
  • FIG. 8a This is in FIG. 8a ) shown in a slightly enlarged view again.
  • the angle ⁇ of, for example, 3 ° indicates the point at which the dressing allowance 29 is reduced to 0 in the outer radius transition of the grinding wheel.
  • a relatively large amount of abrasive must be removed during dressing in a one-piece grinding wheel in the peripheral region. Otherwise the "profile would collapse".
  • the situation is different when dressing a grinding wheel according to the invention. This is in FIG. 8b ). It can be seen that the Abrichtrad 27 is guided around the entire contour of the grinding wheel to be dressed from the peripheral area over the radius range up to and including the side area and a uniform dressing allowance removed. Because in the grinding wheel according to the invention the distance removed during dressing can be compensated by the width adjustment. This makes it possible to remove just so much abrasive during dressing that the grinding wheel is again easy to sand, smoothing in all grinding areas of the grinding wheel can thus be avoided. Because only the minimum allowance for dressing is to be removed, the grinding wheel according to the invention can be dressed much more frequently until the grinding wheel lining of the grinding wheel is essentially completely used up and thus the grinding wheel becomes unusable.
  • FIG. 9 shows an enlarged view of a grinding tool according to the invention.
  • the grinding conditions in the moment shown in which the grinding tool with its grinding surface side surface 6C in the flat shoulder region of the workpiece 30 to be grounded in the sense of a plunge process with the grinding of the flat shoulder just starts.
  • Shown is only the part 5 of the grinding tool with its abrasive coating 6A in the peripheral region and 6C in the side region of the outer side surface 9 of the grinding wheel-like body.
  • Shown is furthermore the rough contour 31 of the workpiece 30, which is ground by means of the grinding tool according to the invention on the workpiece end contour 32, which is shown as a dashed line. If such a bearing is ground with opposite flat shoulders, this is done - as in FIG.
  • the area indicated by a thick line in the transition from the edge radius of the grinding wheel to the grinding surface side surface 6C represents a grinding zone 33 in which, due to the fact that the grinding tool and the workpiece are rotationally symmetric parts, the removal of the largest grinding allowance, ie Cosmeticinador on the plan side of the bearing, only a few abrasive grains must be made. These abrasive grains in this lateral zone on the grinding tool are thereby subjected to the highest load during the grinding process. The abrasive grains lying behind in the radial direction of the grinding tool (ie counter to the piercing direction in the workpiece 30) do not actually participate in the actual grinding process. The dressing cycles are therefore essentially following the wear at this point. However, according to the FIG.
  • the grinding wheel can be repeatedly trained and readjusted by the Abrichtassi in the width that the workpiece end contour 32 to be ground is always achievable. This can significantly increase the service life of the tool.
  • the grinding tool can be re-manufactured by dressing in the entire grinding area so that an always "sharp" and abrasive grinding wheel results after dressing. As a result, otherwise resulting structural changes are avoided by heat on the workpiece.
  • FIG. 10 shows a grinding tool according to an embodiment of the invention, in which the intermediate spaces 25 between the grinding wheel parts 5 and 7 are traversed by a coolant 26.
  • the coolant is preferably supplied to the grinding tool in the axial direction, which can preferably be done under pressure.
  • such a grinding tool with internal cooling can of course still experience external cooling during use, so that it is possible to obtain an optimal coolant supply in the entire grinding areas.
  • Another advantage of such a grinding tool with internal cooling is that due to the permanent flow of coolant 26, the joints between the parts 5 and 7 are permanently cleaned and can collect any grinding residues in these joints.
  • the remaining structure of the grinding tool according to the invention essentially corresponds to that according to FIG. 1 ,

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Claims (14)

  1. Outil de meulage (1) composé d'au moins deux parties (5, 7) détachables, reliées l'une à l'autre, constituant un organe de type disque de meulage dont la zone périphérique forme une surface de meulage (6), discontinue,
    les parties (5, 7) étant réglables l'une par rapport à l'autre par un mécanisme de réglage et se bloquant dans la position de réglage respective,
    le corps en forme de disque étant réglable en largeur,
    caractérisé en ce que
    le mécanisme de réglage comporte pour le réglage et le blocage des deux parties (5, 7) de l'outil de meulage (1) l'une par rapport à l'autre, au moins trois unités de réglage/blocage (11, 23), écartées en périphérie pratiquement de manière équiangulaire,
    le blocage des deux parties (5, 7) l'une par rapport à l'autre se faisant par une liaison de centrage (8) et le corps en forme de disque de meulage une fois bloqué, ne peut pratiquement pas s'écarter,
    les deux parties (5, 7) de l'outil de meulage étant revêtues soit complètement, soit partiellement par zones, d'un revêtement de meulage en un agent de meulage en CBN ou en diamant.
  2. Outil de meulage (1) selon la revendication 1,
    caractérisé en ce que
    la liaison de centrage comporte une liaison de centrage (8) avec appui radial extérieur ou une liaison de centrage (14) avec appui radial intérieur.
  3. Outil de meulage (1) selon la revendication 1 ou 2,
    caractérisé en ce que
    les unités de réglage/blocage (11, 23) sont installées dans la direction radiale aussi loin que possible, extérieurement dans la direction de la périphérie extérieure de l'outil de meulage (1),
    la liaison de centrage étant prévue radialement à l'extérieur des unités de réglage/blocage (11, 23).
  4. Outil de meulage (1) selon l'une des revendications 1 à 3,
    caractérisé en ce que
    l'une (5) des parties (5, 7) formant l'outil de meulage est installée solidairement sur la broche (2) de l'outil de meulage et l'autre (7) des parties (5, 7) qui comportent les unités de réglage/blocage, est fixée de manière réglable ou coulissante par rapport à la partie fixe (5).
  5. Outil de meulage (1) selon l'une des revendications 1 à 4,
    caractérisé en ce qu'
    une partie (7) est bloquée à l'autre partie (5) par l'intermédiaire de broches filetées de serrage (13) et d'une vis de serrage (12), bloquée, pour un serrage sans jeu et par une liaison par la force.
  6. Outil de meulage (1) selon les revendications 4 ou 5,
    caractérisé en ce qu'
    en plus il est prévu un centrage sur un bec de la broche (2) de l'outil de meulage.
  7. Outil de meulage (1) selon l'une des revendications 1 à 6,
    caractérisé en ce que
    la largeur de meulage se règle en continu à l'aide du mécanisme de réglage.
  8. Outil de meulage (1) selon l'une des revendications 1 à 7,
    caractérisé en ce que
    l'organe en forme de disque de meulage a une surface de meulage au moins sur l'une de ses surfaces latérales extérieures (9, 10).
  9. Outil de meulage (1) selon l'une des revendications 1 à 8,
    caractérisé en ce que
    l'organe en forme de disque de meulage est constitué par un disque de meulage composé de deux moitiés en forme de disques, divisées dans la direction périphérique, et ayant des zones de meulage (6C, 6D) sur les deux zones latérales, pour meuler une dimension de largeur de meulage déterminée par un meulage en plongée.
  10. Outil de meulage (1) selon l'une des revendications 1 à 9,
    caractérisé en ce que
    les parties (5, 6) sont réalisées pour qu'à chaque largeur de disque réglable, lors du meulage, l'agent de meulage arrive dans toute zone de la largeur de la plage de meulage à traiter.
  11. Outil de meulage (1) selon les revendications 1 ou 2,
    caractérisé en ce que
    les unités de réglage/blocage (11, 23) sont actionnées manuellement de manière mécanique.
  12. Outil de meulage (1) selon les revendications 1 ou 2,
    caractérisé en ce que
    les unités de réglage/blocage sont actionnées automatiquement.
  13. Outil de meulage (1) selon l'une des revendications 1 à 12,
    caractérisé en ce que
    sa largeur réglable peut être lue ou réglée sur une échelle (11).
  14. Outil de meulage (1) selon l'une des revendications 1 à 13,
    caractérisé en ce qu'
    entre les parties (5, 7), pour chaque réglage de largeur, on a des volumes intermédiaires (25) dans lesquels se développent des espaces intermédiaires (25) pour le réglage en largeur et par lesquels de l'agent de refroidissement (26) alimente directement la surface de meulage (6).
EP03026039A 2003-11-12 2003-11-12 Outil de meulage scindé Expired - Fee Related EP1533078B1 (fr)

Priority Applications (11)

Application Number Priority Date Filing Date Title
DE50309740T DE50309740D1 (de) 2003-11-12 2003-11-12 Geteiltes Schleifwerkzeug
EP03026039A EP1533078B1 (fr) 2003-11-12 2003-11-12 Outil de meulage scindé
ES03026039T ES2305390T3 (es) 2003-11-12 2003-11-12 Herramienta de rectificado dividida.
KR1020067011544A KR101095949B1 (ko) 2003-11-12 2004-10-07 분리형 연삭 툴
BRPI0416500-4A BRPI0416500A (pt) 2003-11-12 2004-10-07 ferramenta de esmerilhar dividida
JP2006538675A JP4667387B2 (ja) 2003-11-12 2004-10-07 分割型研削工具
PCT/EP2004/011216 WO2005046936A1 (fr) 2003-11-12 2004-10-07 Outil de rectification divise
CA2545633A CA2545633C (fr) 2003-11-12 2004-10-07 Outil de rectification divise
US10/579,451 US7235007B2 (en) 2003-11-12 2004-10-07 Divided grinding tool
CN2004800330665A CN1878636B (zh) 2003-11-12 2004-10-07 分离式磨具
RU2006120465/02A RU2348506C2 (ru) 2003-11-12 2004-10-07 Абразивный инструмент

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP03026039A EP1533078B1 (fr) 2003-11-12 2003-11-12 Outil de meulage scindé

Publications (2)

Publication Number Publication Date
EP1533078A1 EP1533078A1 (fr) 2005-05-25
EP1533078B1 true EP1533078B1 (fr) 2008-04-30

Family

ID=34429355

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03026039A Expired - Fee Related EP1533078B1 (fr) 2003-11-12 2003-11-12 Outil de meulage scindé

Country Status (11)

Country Link
US (1) US7235007B2 (fr)
EP (1) EP1533078B1 (fr)
JP (1) JP4667387B2 (fr)
KR (1) KR101095949B1 (fr)
CN (1) CN1878636B (fr)
BR (1) BRPI0416500A (fr)
CA (1) CA2545633C (fr)
DE (1) DE50309740D1 (fr)
ES (1) ES2305390T3 (fr)
RU (1) RU2348506C2 (fr)
WO (1) WO2005046936A1 (fr)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008025120B3 (de) * 2008-05-26 2009-03-19 Erwin Junker Maschinenfabrik Gmbh Geteilte Schleifscheibe
JP5115352B2 (ja) * 2008-06-20 2013-01-09 株式会社ジェイテクト 研削装置と切削装置
US20100203811A1 (en) * 2009-02-09 2010-08-12 Araca Incorporated Method and apparatus for accelerated wear testing of aggressive diamonds on diamond conditioning discs in cmp
ES2628824T3 (es) * 2010-07-12 2017-08-04 Saint-Gobain Abrasives, Inc. Artículo abrasivo para conformar materiales industriales
ITPD20110305A1 (it) * 2011-09-28 2013-03-29 Domenico Privitera Mola periferica per la lavorazione di bordi di lastre
CN102581782B (zh) * 2012-03-08 2014-04-16 宁波大学 一种易回收的电镀金刚石砂轮
CN102581783B (zh) * 2012-03-08 2014-03-26 宁波大学 一种易回收的电镀金刚石砂轮的制造方法
DE102012223029A1 (de) * 2012-12-13 2014-06-18 Lufthansa Technik Ag Schleifscheibe für eine Werkzeugmaschine
JP2014133281A (ja) * 2013-01-09 2014-07-24 Mitsubishi Materials Corp 回転切削工具
ITPD20130286A1 (it) * 2013-10-17 2015-04-18 Adi S P A Mola, particolarmente per lavorazioni di molatura di lastre in vetro, ceramica o simili materiali
CN105196198B (zh) * 2013-12-10 2018-02-23 浙江恒成硬质合金有限公司 一种顶锤用复合砂轮
JP6411136B2 (ja) * 2014-08-29 2018-10-24 本田技研工業株式会社 円盤状砥石
CN106670968A (zh) * 2016-11-21 2017-05-17 芜湖市泰能电热器具有限公司 一种可调式自动磨削装置
CN106426438A (zh) * 2016-11-29 2017-02-22 南京致勒工具科技有限公司 盘式组合铣刀
AT520966A1 (de) * 2018-03-12 2019-09-15 Tyrolit Schleifmittelwerke Swarovski Kg Schleifwerkzeug zum Schleifen eines Motorblocks
CN110480506B (zh) * 2019-07-26 2021-08-10 西安理工大学 一种用于成形磨削的内冷却开槽砂轮装置
CN113967879B (zh) * 2021-11-04 2022-12-27 东阳市灿红磁业有限公司 一种磨削磨轮和磨削装置
CN114346884B (zh) * 2022-03-17 2022-05-27 徐州瑞达装备制造有限公司 一种高强度紧固件制造用打磨抛光装置

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE290422C (fr) *
DE7406719U (de) * 1975-01-09 Blohm R Vorrichtung zum Schleifen von Nuten mit Diamantschielfscheiben
US2712205A (en) * 1952-06-20 1955-07-05 Crucible Steel Company Abrading roll
DE3322258C1 (de) 1983-06-21 1984-06-28 Erwin 7611 Nordrach Junker Spannvorrichtung für einen Schleifring
DE3405556C1 (de) 1984-02-16 1985-09-05 Erwin 7611 Nordrach Junker Spannvorrichtung für einen Schleifring
JPS607954U (ja) * 1983-06-29 1985-01-19 日野自動車株式会社 分割型砥石
JPS6279968A (ja) * 1985-10-04 1987-04-13 Toshiba Corp 総形砥石
DE3728447A1 (de) * 1987-08-26 1989-03-09 Kapp & Co Spreizbare formschleifscheibe
DE3824543A1 (de) * 1988-07-20 1990-01-25 Naxos Union Schleifmittel Schleifscheibe
JPH02145264A (ja) * 1988-11-29 1990-06-04 Ibiden Co Ltd センターレス研削盤の砥石車
DE4103090C1 (fr) 1991-02-01 1992-08-27 Erwin 7618 Nordrach De Junker
DE4115666C1 (en) * 1991-05-14 1992-04-30 Bayerische Motoren Werke Ag, 8000 Muenchen, De Grinding wheels with variable spacing - are coaxial and rotate together and are urged apart by spring
US5423717A (en) * 1993-10-04 1995-06-13 Ford Motor Company Grinding wheel assembly
FR2752762B1 (fr) 1996-08-29 1998-10-02 Snecma Meule de rectification avec arrosage incorpore
CN2569976Y (zh) * 2002-09-26 2003-09-03 李广庆 一种改进的金刚石辊轮

Also Published As

Publication number Publication date
CN1878636B (zh) 2010-10-06
RU2006120465A (ru) 2007-12-20
DE50309740D1 (de) 2008-06-12
EP1533078A1 (fr) 2005-05-25
BRPI0416500A (pt) 2007-01-09
JP4667387B2 (ja) 2011-04-13
ES2305390T3 (es) 2008-11-01
CA2545633C (fr) 2011-03-15
JP2007533469A (ja) 2007-11-22
RU2348506C2 (ru) 2009-03-10
CN1878636A (zh) 2006-12-13
KR20060133537A (ko) 2006-12-26
US20070082592A1 (en) 2007-04-12
KR101095949B1 (ko) 2011-12-19
US7235007B2 (en) 2007-06-26
WO2005046936A1 (fr) 2005-05-26
CA2545633A1 (fr) 2005-05-26

Similar Documents

Publication Publication Date Title
EP1533078B1 (fr) Outil de meulage scindé
EP2823924B1 (fr) Machine à dresser double
EP1525073B1 (fr) Procede et dispositif pour rectifier un element de machine a symetrie de revolution
DE10144649C5 (de) Verfahren zur drallfreien spanenden Bearbeitung von rotationssymmetrischen Flächen
DE10235808A1 (de) Verfahren und Vorrichtung zum Schleifen eines mit einer Längsbohrung versehenen rotationssymmetrischen Maschinenbauteils
EP2384853B1 (fr) Meuleuse à double face
EP0182290A2 (fr) Tête de fraisage
EP1427568A1 (fr) Procede et dispositif pour polir des points d'appui centraux de vilebrequins
EP0542026B1 (fr) Procédé d'usinage de surface à symétrie de rotation, en particulier vilebrequin, ainsi que outil pour la réalisation d'un tel procédé
CH684581A5 (de) Verfahren und Vorrichtung zum Profilieren von Schleifscheiben.
DE102006014972B4 (de) Kombiniertes Bearbeitungsverfahren und Bearbeitungseinrichtung
DE102004022360B4 (de) Verfahren zur Feinbearbeitung, vorzugsweise zur Feinstschlichtbearbeitung, von Werkstücken vorzugsweise von Kurbelwellen
CH685544A5 (de) Verfahren zum Umfangs- und Fasenschleifen von Schneidplatten und Vorrichtung zur Durchführung des Verfahrens.
DE102008025120B3 (de) Geteilte Schleifscheibe
DE3811784A1 (de) Abrichtrolle und verfahren zum abrichten einer schleifmaschine
DE10208423A1 (de) Schleifscheibe mit Abtragungssegmentplatten mit zumindest zwei Abtragungssegmentplatten, deren Umfangslängen von einander verschieden sind
EP0841116B1 (fr) Méthode de travail de surfaces de pièces symétriques en rotation et outil employé
DE602004006149T3 (de) Schleifgerät, dessen Anwendung zum Schleifen von zylindrischen Gegenständen , Vorrichtung und Verfahren zum Schleifen von zylindrischen Gegenständen
EP0268104A1 (fr) Dispositif de fixation de meule pour meuleuse à haute vitesse
DE2556170B2 (de) Schleif- bzw. Poliervorrichtung für ein Zahnrad
DE10126796C5 (de) Verfahren und Vorrichtung zum spitzenlosen Rundschleifen
EP0781627A1 (fr) Machine de micro-finition
DE19806688C2 (de) Vorrichtung zur Bearbeitung von unrunden Bohrungen
WO2022167205A1 (fr) Barre de polissage, procédé de fabrication d'une barre de polissage et outil de polissage
EP4034335A1 (fr) Outil de dressage et son procédé de production

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK

17P Request for examination filed

Effective date: 20050725

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: BSH HOLICE A.S.

RIN1 Information on inventor provided before grant (corrected)

Inventor name: BSH HOLICE A.S.

AKX Designation fees paid

Designated state(s): CZ DE ES FR GB IT

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: ERWIN JUNKER, BROUSICI TECHNIKA MELNIK A.S.

RIN1 Information on inventor provided before grant (corrected)

Inventor name: JUNKER, ERWIN

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: ERWIN JUNKER GRINDING TECHNOLOGY A.S.

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CZ DE ES FR GB IT

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REF Corresponds to:

Ref document number: 50309740

Country of ref document: DE

Date of ref document: 20080612

Kind code of ref document: P

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2305390

Country of ref document: ES

Kind code of ref document: T3

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20090202

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 13

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 14

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CZ

Payment date: 20191105

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20191128

Year of fee payment: 17

Ref country code: ES

Payment date: 20191216

Year of fee payment: 17

Ref country code: FR

Payment date: 20191121

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20191126

Year of fee payment: 17

Ref country code: DE

Payment date: 20200130

Year of fee payment: 17

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 50309740

Country of ref document: DE

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20201112

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CZ

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20201112

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20201112

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20201130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20210601

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20201112

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20220201

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20201113