EP2072182B1 - Schleifmaschine mit einer Vorrichtung zum Konditionieren einer Schleifscheibe und Verfahren dazu - Google Patents

Schleifmaschine mit einer Vorrichtung zum Konditionieren einer Schleifscheibe und Verfahren dazu Download PDF

Info

Publication number
EP2072182B1
EP2072182B1 EP07123579A EP07123579A EP2072182B1 EP 2072182 B1 EP2072182 B1 EP 2072182B1 EP 07123579 A EP07123579 A EP 07123579A EP 07123579 A EP07123579 A EP 07123579A EP 2072182 B1 EP2072182 B1 EP 2072182B1
Authority
EP
European Patent Office
Prior art keywords
grinding wheel
grinding
electrode
discharge
sharpening
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.)
Active
Application number
EP07123579A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2072182A1 (de
Inventor
Friedhelm Altpeter
Walter H. Dr. Pfluger
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.)
Agathon AG Maschinenfabrik
Original Assignee
Agathon AG Maschinenfabrik
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 Agathon AG Maschinenfabrik filed Critical Agathon AG Maschinenfabrik
Priority to EP07123579A priority Critical patent/EP2072182B1/de
Priority to DE502007004211T priority patent/DE502007004211D1/de
Priority to US12/335,183 priority patent/US8410390B2/en
Priority to JP2008322194A priority patent/JP5363091B2/ja
Priority to CN2008101780912A priority patent/CN101462243B/zh
Publication of EP2072182A1 publication Critical patent/EP2072182A1/de
Application granted granted Critical
Publication of EP2072182B1 publication Critical patent/EP2072182B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • B24B53/00—Devices or means for dressing or conditioning abrasive surfaces
    • B24B53/001—Devices or means for dressing or conditioning abrasive surfaces involving the use of electric current
    • 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
    • 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
    • B24B53/062—Devices or means for dressing or conditioning abrasive surfaces of profiled abrasive wheels using rotary dressing tools

Definitions

  • the present invention relates to a grinding machine for grinding a workpiece, comprising a machine frame, a bearing mounted on the machine frame and guides movable bearing means in which a cup-shaped grinding wheel is rotatably driven and electrically insulated around a grinding wheel axis, which is constructed of electrically conductive material and a first abrasive region with an annular abrasive coating and second abrasive regions with jacket surface abrasive coatings, each consisting of an electrically conductive bonding material and abrasive grains embedded therein, which abrasive disc is electrically connected to a generator, means for holding the workpiece to be ground, a device for conditioning the Grinding wheel with at least one movable electrode, which is also electrically connected to the generator and means for supplying a cooling lubricant to the El ektrode and the workpiece.
  • Such grinders are eg off EP 1 470 894 A1 known.
  • indexable inserts can be ground, which must be done with high precision, including the grinding wheel must be kept in an optimal condition with respect to accuracy and sharpness. To ensure this quality of the grinding wheel, it must be prepared and conditioned accordingly. In this case, essentially three processes are used, namely the profiling, the sharpening and the cleaning of the grinding wheel.
  • the profiling process with which the grinding wheel is brought into the desired shape, is usually carried out at each new grinding wheel, a profiling is also carried out when the grinding wheel has been in use for a long time.
  • a profiling is performed with a Siliziumcarbidide, which is adjustable to the grinding wheel in the grinding machine or on which the grinding wheel can be employed in the grinding machine.
  • this silicon carbide enters the coolant circuit and must, as this material is very aggressive, be removed as quickly as possible from the cooling lubricant medium. For this purpose, the corresponding complex equipment is required.
  • the binding material of the abrasive pad is reset to improve the projection of the abrasive grains over the bonding material. It is known to carry out the sharpening operation of a grinding wheel for metal-bonded grinding wheels by means of electrochemical processes, in which by means of an electrode and a supplied electrolyte, an electrochemical separation of the conductive bonding material of the abrasive coating of the grinding wheel. The detached material must then be laboriously filtered out of the working as a cooling lubricant electrolytic medium, including expensive devices are required.
  • An object of the present invention is therefore to design a grinding machine for grinding a workpiece so that both the profiling, the sharpening and the cleaning of the grinding wheel can be carried out in a simple manner with a single tool and the cleaning of the cooling lubricant can be carried out in a simple manner.
  • the object is achieved in that the device for profiling, sharpening and cleaning is formed from a single designed as a cup-shaped electrode tool which is equipped at least with an annular processing surface, which pot-shaped electrode mounted to rotate about its central axis drivable on a carriage is, by means of which one between the respective processing surface the pot-shaped electrode and the respective abrasive coating existing working gap is adjustable, in which upon application of an ignition voltage by the generator spark erosive discharge occurs.
  • This electroerosive discharge in the working gap erodes the bonding material, depending on how wide the working gap is, how large the discharge energy is selected and which discharge frequency is used.
  • the grinding wheel can be profiled, sharpened and cleaned, which can be carried out in a very simple manner by the single electrode used for this purpose.
  • the sharpening and cleaning of the grinding wheel can be carried out easily during the grinding of a workpiece, whereby the efficiency of the machining operations, since no interruption arises, is optimal.
  • it is ensured that the grinding wheel constantly has an optimum grinding quality this also increases the efficiency, the machining of the workpieces is very accurate.
  • the removed by the spark erosive discharge material is carried away by the introduced into the working gap cooling lubricant, a cleaning of this cooling lubricant is possible in a simple manner, as is also carried out in corresponding spark erosion machines.
  • the axis of the pot-shaped electrode is aligned parallel to the grinding wheel axis and perpendicular to the working surface of the grinding wheel.
  • the working surface is ideally perfectly planed and conditioned perpendicular to the axis of rotation of the grinding wheel.
  • the axis of the pot-shaped electrode is mounted electrically isolated in the carriage, which carriage is held on a linear guide on the bearing device and controlled in the direction of the axis along the linear guide is displaceable.
  • the pot-shaped electrode can be switched on and off in an optimal and simple manner to the grinding wheel or the processing surface to be conditioned.
  • a further advantageous embodiment of the invention is that the carriage is designed as a cross slide, so that the electrode with respect to the grinding wheel is substantially axially and radially movable, and that the electrode is equipped with a further, substantially mantle-shaped processing surface.
  • the carriage is designed as a cross slide, so that the electrode with respect to the grinding wheel is substantially axially and radially movable, and that the electrode is equipped with a further, substantially mantle-shaped processing surface.
  • the mantle surface-shaped processing surface of the electrode is of cylindrical design and the two carriages designed as cross slide are pivotable relative to each other about an axis perpendicular thereto. This can also be used to condition a surface-shaped abrasive coating with this electrode if it has a so-called clearance angle with respect to the annular abrasive coating.
  • the mantle surface-shaped processing surface of the electrode can also be formed frusto-conical, whereby a mantle surface-shaped abrasive coating can also be conditioned if this has a so-called clearance angle with respect to the annular abrasive coating by both carriages are moved simultaneously.
  • the spark erosion generating generator is a capacitive discharge spark generator, which allows for optimal spark discharge, and is disposed on the cup-shaped grinding wheel storage apparatus, resulting in the shortest possible spark discharge discharge lines, which has a positive effect thereon ,
  • the means for supplying the cooling lubricant from nozzles attached to supply lines are formed, via which nozzles the cooling lubricant in the machining gap and the Workpiece can be fed, which has an optimal conditioning and optimal cooling and lubrication result.
  • cooling lubricant is an oil-based dielectric, whereby an optimal cooling and lubrication during the grinding process is achieved, and an optimal environment for the spark erosive discharge for conditioning the grinding wheel is obtained.
  • the electrode is made of aluminum, whereby it is easy to work, and also in connection with the oil-based based dielectric optimal spark erosive discharge can be achieved.
  • a control device for controlling and regulating the work processes, whereby these can be optimally coordinated with the grinding operations to be performed.
  • a further object of the invention is to provide a method for conditioning a cup-shaped grinding wheel with which it can be profiled, sharpened and cleaned in an optimum manner, which is achieved according to the invention by conditioning a cooling lubricant for conditioning the grinding surfaces of the grinding wheel in the working gap an ignition voltage is applied across the generator across the working gap and the electrode is moved towards the grinding wheel at a feed rate until a predetermined threshold of mean voltage, measured across the working gap, and / or average current flow, as measured by the discharge lines , is passed through that then the ignition voltage across the working gap, the discharge energy, the discharge frequency and the feed rate to a given value for profiling, sharpening or cleaning the grinding wheel are set and the ents Pre-emptive process is carried out by spark erosive discharge.
  • a discharge energy of about 10 to 100 mJ and a discharge frequency of about 1 to 100 kHz is selected for profiling the grinding wheel, resulting in an optimum removal performance.
  • the profiling operation is carried out until the average stress, measured across the working gap, and / or the average flow of current, as measured by the discharge conduits, is substantially constant, indicating that the abrasive coating to be profiled is optimally formed.
  • a discharge energy of about 0.5 to 5 mJ and a discharge frequency of about 10 kHz to 1 MHz is selected, a corresponding discharge energy and discharge frequency is also selected for sharpening and cleaning the grinding wheel, wherein the sharpening and cleaning of the grinding wheel during the machining of a workpiece can be performed.
  • This re-sharpening function lasts for a predetermined time while not being ground, and works with parameters similar to sharpening and cleaning the grinding wheel while machining a workpiece.
  • Optimum machining of the abrasive wheel by the electrode is achieved when the advancing speed of the electrode is adjusted by a regulator located within the controller within a selectable bandwidth due to the average voltage measured across the working gap and the average current flow as measured by the discharge lines.
  • the discharge energy and the discharge frequency during sharpening and cleaning of the grinding wheel by an optimization algorithm arranged in the control within a selectable bandwidth due to the maximum contact pressure, the average contact pressure during the spark, the ratio of Power of the drive motor to the contact force and the disc wear, measured during the previous and completed grinding operations set. This gives a simpler operation of the procedure.
  • a discharge energy of about 0.1 to 5 mJ and a discharge frequency of about 10 kHz to 1 MHz is selected, and this resharpening operation is performed during a selectable re-sharpening time, whereby a large process stability is achieved.
  • the ratio of the power of the drive motor to the contact force and the disk wear measured during the preceding and completed grinding operations is set to achieve further ease of operation.
  • Fig. 1 is the storage device 1 can be seen, which is placed in a known manner, not shown directly on the machine frame of a grinding machine or inserted between bearing device 1 and machine frame carriage assembly.
  • a pot-shaped grinding wheel 2 is rotatably mounted about a grinding wheel axis 3.
  • the rotating drive of this grinding wheel 2 via an electric motor 4, which is arranged on the bearing device 1.
  • the pot-shaped grinding wheel 2 consists of a grinding cup 5, on which a slip ring 6 is placed, which has an annular abrasive coating 7 and a mantle-shaped abrasive coating 8.
  • a workpiece 9 can be ground, for example an indexable insert, which is held in a known manner by means 10 for holding the workpiece 9 to be ground, arranged in the grinding machine.
  • a device 11 For conditioning the abrasive coatings 7, 8 of the cup-shaped grinding wheel 2, a device 11 is provided, which has a cup-shaped electrode 12 which is mounted for rotation about its central axis 13 drivable in a carriage 14 which on the bearing device 1 in the direction of the central axis thirteenth is held displaceable.
  • the displacement of the carriage 14 on the bearing device 1 via a ball screw drive 15, the drive motor 16 is mounted on the bearing device 1.
  • a generator 17 is arranged on the storage device 1.
  • This generator 17 is connected via lines 18 to the power supply of the grinding machine.
  • the generator 17 is connected via a discharge line 19 with the cup-shaped grinding wheel 2 and via a further discharge line 20 with the cup-shaped electrode 12, as will be seen below.
  • the communication with the known, not shown machine control via the line 35 which can meet a variety of specifications such as Ethernet, Profibus or RS 232.
  • a nozzle 21 is attached in known manner, which is connected to a feed line, not shown, via which a cooling lubricant can be introduced into the grinding area.
  • a further nozzle 22 is arranged in a known manner in the region of the electrode, via which the cooling lubricant can be introduced into the working gap 23 between the cup-shaped electrode 12 and the slip ring 6 of the grinding wheel 2 via a feed line, not shown.
  • the spindle 24 of the cup-shaped grinding wheel 2 is mounted in electrically insulated bearings 25.
  • the electric motor 4 is electrically isolated from the spindle 24 in a known manner.
  • a slip ring 26 is mounted, which cooperates with a contact 27, to which the discharge line 19 (FIG. Fig. 1 ) connected.
  • the cup-shaped grinding wheel 2 via the spindle 24, the slip ring 26, the contact 27 and the corresponding discharge line to the generator 17 (FIG. Fig. 1 ) connected.
  • the pot-shaped electrode 12 is flanged onto an electrode spindle 28, which is electrically isolated in a corresponding manner in the carriage 14 (FIG. Fig. 1 ) Is mounted and about the spindle 28 electrically isolated motor 29 arranged around the central axis 13 can be driven.
  • a slip ring 30 is mounted, which cooperates with a contact 31, which contact 31 via the discharge line 20 (FIG. Fig. 1 ) is electrically connected to the generator 17.
  • the grinding wheel cup 5 of the cup-shaped grinding wheel 2 is made of an electrically conductive material.
  • the patch on the grinding wheel pot 5 slip ring 6 consists of a base made of aluminum, bronze or steel.
  • the abrasive coatings 7, 8 are applied, which consist of a bond in which the abrasive grains are incorporated.
  • the binding material consists of a metal alloy, synthetic resin or ceramic, which are also electrically conductive. In this electrically conductive bonding material, the abrasive grains are embedded in a known manner, which may consist of diamond or another correspondingly suitable material.
  • the cup-shaped electrode 12 is also made of an electrically conductive material, preferably of aluminum. However, this pot-shaped electrode 12 may also consist of copper, graphite or another conductive suitable material.
  • the cooling lubricant used is preferably an oil-based dielectric, for example the cooling lubricant marketed under the name "Ionogrind” by the company Oelheld GmbH, Stuttgart, Germany.
  • the generator 17 used here is a spark generator with capacitive discharge, as it is for example in U.S. Patent No. 4,710,603 the company Fanuc Ltd. is described.
  • an ignition voltage is applied by the generator 17 via the working gap 23, whereby between the pot-shaped electrode 12th and the cup-shaped grinding wheel 2 forms an ion channel in the dielectric cooling lubricant and a discharge can take place.
  • the working gap 23 must be large enough so that the released binding material but also the dissolved abrasive grains can be washed away without damaging the pot-shaped electrode 12 or the abrasive coatings 7, 8 of the cup-shaped grinding wheel 2.
  • the working gap 23, ie, the distance between the bottom of the bonding material of the abrasive pad of the grinding wheel 2 and the cup-shaped electrode 12, should be between 50 and 100 microns.
  • an ignition voltage across the working gap 23 of 300 to 500 volts, preferably 400 volts, is required. With a smaller ignition voltage, there is a risk that the working gap is too small and the leaching of the bonding material and the abrasive grains violate the surface of the cup-shaped electrode 12.
  • the generator 17 is arranged on the bearing device 1, which means that the electrical discharge lines 19 and 20 (FIG. Fig. 1 ) can be kept very short, whereby an optimal conditioning process of the grinding wheel can be achieved by means of spark erosion.
  • Fig. 3 shows a schematic representation of the position of the cup-shaped electrode 12 to the cup-shaped grinding wheel 2 when the annular abrasive coating 7 of the cup-shaped grinding wheel 2 is to be conditioned.
  • the central axis 13 of the pot-shaped electrode 12 is in this case aligned exactly parallel to the grinding wheel axis 3.
  • the cup-shaped electrode 12 is formed in a hollow cylindrical shape, and has an annular processing surface 32, which is exactly flat.
  • the cup-shaped grinding wheel 2 rotates around the grinding wheel axis 3, wherein the peripheral speed of the grinding wheel is about 15 to 25 meters per second, if it is a metal-bonded diamond grinding wheel, this can be increased up to 63 meters per second for grinding wheels with CBN grains.
  • the pot-shaped electrode rotates around the central Axis 13 at a slower speed. By rotating the electrode 12, a very accurate flatness of the electrode 12 and the abrasive coating 7 is achieved.
  • the cup-shaped electrode 12 Before the spark erosion discharge conditioning operation can be carried out, the cup-shaped electrode 12 must be placed at the correct distance from the abrasive linings 7, 8 to be conditioned.
  • the conditioning operations described below are carried out with a cup-shaped grinding wheel with a diameter of 400 mm, a pad width of 10 mm and a grain size of 25 microns.
  • the discharge energy at the generator is adjusted, the cup-shaped electrode 12 is moved via the carriage 14 along the central axis 13 to the grinding wheel 2, wherein the speed can be 10 to 100 micrometers per minute.
  • a high discharge energy typically 10 to 100 mJ
  • a low discharge frequency typically 1 to 100 kHz
  • the feed rate of the cup-shaped electrode 12 is set at a rate of typically 0.5 to 5 microns per minute. This feed rate is controlled during spark erosion processing within a given bandwidth due to the measured average voltage across the working gap 23 and the average current flowing through the two discharge lines.
  • the profiling process is terminated when the average voltage across the working gap and / or the average current flowing through the discharge lines remain substantially constant, ie not more than 10% during one rotation of the grinding wheel 2 and the electrode 12, respectively.
  • an absolutely flat annular abrasive coating 7 is obtained, which lies in a plane perpendicular to the grinding wheel axis 3 level.
  • annular tapered machining surface 32 of the electrode and align the central axis 13 is not parallel to the grinding wheel axis 3, one would then receive an annular abrasive coating 7, which would be at an angle with respect to the plane perpendicular to the grinding wheel axis 3.
  • the profiling can be shortened by the grinding wheel 2 with the corresponding abrasive coating 7, 8 and the electrode 12 are hired with the corresponding surface to each other, the generator 17 remains off.
  • the grinding wheel 2 and the electrode 12 are driven in rotation.
  • the profiling process can then be completed by the previously described dressing process.
  • the generator 17 can be switched on to carry out the dressing process.
  • a medium voltage is applied.
  • grinding wheel 2 and electrode 12 are moved against each other until grinding wheel 2 and electrode 12 abut one another. It creates a short-circuit voltage.
  • the advancing movement of the grinding wheel 2 or the electrode 12 is stopped, it can be waited until an equilibrium sets in the discharge discharge.
  • a discharge energy of typically 0.1 to 5 mJ and a discharge frequency of typically 10 kHz to 1 MHz are selected.
  • the advancing movement of the cup-shaped electrode 12 is brought to a low speed of typically 0.1 to 0.4 microns per minute.
  • the feed rate is optimally adjusted within a certain bandwidth due to the measured average voltage across the working gap 23 and the average current flowing through the discharge lines by means of a regulator in the controller.
  • the pre-sharpening process can be considered complete when a feed distance of 20 to 50 microns is reached, this Feed distance corresponds approximately to the grain diameter. As a result, thermally stressed grains are eliminated.
  • the advancing movement of the cup-shaped electrode 12 is set to a maximum speed of 0.4 micrometers per minute. Discharge energies of 0.1 to 5 mJ and discharge frequencies of 10 kHz to 1 MHz are typically selected.
  • the feed rate is optimally adjusted within a certain bandwidth due to the measured average voltage across the working gap 23 and the average current flowing through the discharge lines by means of the controller in the controller.
  • the pressing force with which the workpiece 9 is pressed against the grinding wheel 2 and the power of the electric motor 4 for the grinding wheel can be measured in a known manner.
  • the maximum contact pressure, the average contact force during sparking and the ratio of the power of the electric motor to the contact force are calculated.
  • the disc wear is estimated in a known manner. From these measured values, or from the data prepared accordingly in a computer and control device, the sharpness state of the abrasive coating 7, 8 of the grinding wheel 2 in use can be quantified in a known manner.
  • the discharge energy and discharge frequency for sharpening and cleaning are advantageously adjusted within a certain range due to the sharpness state of the abrasive pad 7, 8 of the grinding wheel 2 in use during the preceding and completed grinding operations.
  • the advancing movement of the cup-shaped electrode 12 to a speed set at a maximum of 0.4 microns per minute.
  • Discharge energies of 0.1 to 5 mJ and discharge frequencies of 10 kHz to 1 MHz are typically selected.
  • the feed rate is optimally adjusted within a certain bandwidth due to the measured average voltage across the working gap 23 and the average current flowing through the discharge lines by means of the controller in the controller. This process can be considered complete after a certain re-sharpening time.
  • the discharge energy, the discharge frequency and the re-sharpening time are advantageously set within a certain range due to the sharpness state of the abrasive pad 7, 8 of the grinding wheel 2 in use during the preceding and completed grinding operations.
  • the carriage 14 on which the conditioning device 11 are arranged be placed on a perpendicular thereto further carriage 33 so that the cup-shaped electrode 12 can be moved not only in the direction of the central axis 13 on the cup-shaped grinding wheel 2 but also across it. It can thereby be achieved that a jacket-shaped abrasive coating 8 of the cup-shaped grinding wheel 2 can also be processed with this conditioning device 11.
  • the pot-shaped electrode 12 is moved so that its lateral surface 34 is adjacent to the jacket-shaped abrasive coating 8.
  • the working gap 23 thus arises between jacket-shaped Abrasive coating 8 and lateral surface 34 of the pot-shaped electrode 12.
  • the further carriage 33 is moved transversely to the central axis 13 of the cup-shaped electrode 12, the cup-shaped electrode 12 but during the machining operation in the direction of the central axis 13 is oscillating , so that the entire lateral surface 34 is stressed evenly.
  • Fig. 5 it can be seen here has the cup-shaped electrode 12, which is inserted into the device 11 for conditioning the abrasive coatings 7, 8 of the cup-shaped grinding wheel 2, the shape of a truncated cone.
  • the device 11 is placed on the cross slide 14, 33.
  • the lateral surface 34 of the cup-shaped electrode 12 by appropriate method of the two carriages 14 and 33 in the region of the mantle surface-shaped abrasive coating. 8 brought until the desired working gap 23 is formed.
  • the electrode 12 rotates about the axis 13, simultaneously the two carriages 14, 33 are moved such that the electrode performs a superimposed movement in the direction of the clearance angle, represented by arrow 37, and in FIG This direction is moved oscillating, whereby here the lateral surface 34 of the electrode 12 is claimed evenly.
  • the embodiment of the device 11 according to Fig. 6 can also be a coat surface-shaped abrasive coating 8 of a cup-shaped grinding wheel 2 are conditioned, which has a clearance angle with respect to the annular abrasive coating 7.
  • the pot-shaped electrode 12 used here in the device 11 has a cylindrical outer shape.
  • the carriage 14 is pivotable and adjustable in a known manner about a perpendicular to the directions of movement of the two carriages 14, 33 axis 36.
  • the carriage 14 is pivoted relative to the carriage 33 by an angle which corresponds to the clearance angle.
  • the cup-shaped electrode 12 is moved during the machining process in the direction of the central axis 13 oscillating, so that the entire surface 34 is uniformly stressed.
  • a pot-shaped grinding wheel can be conditioned in a most optimal manner, the sharpening and cleaning operations can be easily performed even during the grinding of workpieces.
  • the grinding wheel always has an optimal condition, which increases efficiency.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
EP07123579A 2007-12-19 2007-12-19 Schleifmaschine mit einer Vorrichtung zum Konditionieren einer Schleifscheibe und Verfahren dazu Active EP2072182B1 (de)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP07123579A EP2072182B1 (de) 2007-12-19 2007-12-19 Schleifmaschine mit einer Vorrichtung zum Konditionieren einer Schleifscheibe und Verfahren dazu
DE502007004211T DE502007004211D1 (de) 2007-12-19 2007-12-19 Schleifmaschine mit einer Vorrichtung zum Konditionieren einer Schleifscheibe und Verfahren dazu
US12/335,183 US8410390B2 (en) 2007-12-19 2008-12-15 Grinding machine with a device for conditioning a grinding wheel and a method of conditioning a grinding wheel
JP2008322194A JP5363091B2 (ja) 2007-12-19 2008-12-18 砥石車を適当な状態にする装置を備えた研磨機及びその方法
CN2008101780912A CN101462243B (zh) 2007-12-19 2008-12-19 用于磨削工件的磨床及在磨床中整修杯状砂轮的方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07123579A EP2072182B1 (de) 2007-12-19 2007-12-19 Schleifmaschine mit einer Vorrichtung zum Konditionieren einer Schleifscheibe und Verfahren dazu

Publications (2)

Publication Number Publication Date
EP2072182A1 EP2072182A1 (de) 2009-06-24
EP2072182B1 true EP2072182B1 (de) 2010-06-23

Family

ID=39357991

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07123579A Active EP2072182B1 (de) 2007-12-19 2007-12-19 Schleifmaschine mit einer Vorrichtung zum Konditionieren einer Schleifscheibe und Verfahren dazu

Country Status (5)

Country Link
US (1) US8410390B2 (zh)
EP (1) EP2072182B1 (zh)
JP (1) JP5363091B2 (zh)
CN (1) CN101462243B (zh)
DE (1) DE502007004211D1 (zh)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMO20100070A1 (it) * 2010-03-17 2011-09-18 Giuseppe Soli Macchina per il taglio e/o la profilatura di manufatti sostanzialmente lastriformi
CN103522190B (zh) * 2013-10-31 2016-03-30 哈尔滨工业大学 一种圆弧金刚石砂轮电火花与机械复合修整装置
CN105312916B (zh) * 2014-07-31 2018-01-26 中国船舶重工集团公司第七二二研究所 一种工件的多自由度调节装置
CN104842274B (zh) * 2015-04-15 2018-03-09 北京兴华机械厂 一种超硬磨料砂轮杯形砂轮‑电火花复合修整器
KR101868575B1 (ko) * 2016-06-29 2018-06-18 한국산업기술대학교산학협력단 연마 휠 드레싱 장치 및 방법
CN106584277B (zh) * 2017-01-13 2019-02-22 河钢股份有限公司邯郸分公司 一种改进的轧辊磨床砂轮修磨装置
ES2899451T3 (es) * 2018-03-20 2022-03-11 Vincent Srl Dispositivo de reavivado
EP3608060A1 (fr) * 2018-08-07 2020-02-12 Comadur S.A. Outil d'usinage pour meuler une piece
US11577365B2 (en) 2019-04-05 2023-02-14 Honda Motor Co., Ltd. Systems and methods of processing a rotatable assembly
CN110509125B (zh) * 2019-08-30 2020-11-17 东阳市智享机械科技有限公司 一种采用增稳校面原理的机械加工刀具打磨装置
TWI715298B (zh) * 2019-11-20 2021-01-01 國立臺灣師範大學 線上放電削銳系統及其方法
CN110919543A (zh) * 2019-12-25 2020-03-27 广东豪特曼智能机器有限公司 一种高精密cbn砂轮在线自动修整装置
CN112828779A (zh) * 2021-01-21 2021-05-25 上海橄榄精密工具有限公司 一种铝基砂轮的制备方法及砂轮

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60180718A (ja) 1984-02-29 1985-09-14 Fanuc Ltd 放電加工電源
DE3886624T2 (de) * 1987-03-13 1994-05-26 Gleason Works Drehende abrichtrolle, verfahren und vorrichtung zum abrichten von topfschleifscheiben.
JP2637473B2 (ja) * 1988-06-03 1997-08-06 日立精工株式会社 ワイヤ放電加工機
DE4033137C1 (zh) * 1990-10-18 1991-11-14 Wendt Gmbh, 4005 Meerbusch, De
JP3286941B2 (ja) * 1991-07-09 2002-05-27 株式会社日立製作所 ダイヤモンド研削砥石のツルーイング法
US5416289A (en) * 1994-02-14 1995-05-16 Tanaka; Dwight Method of and apparatus for increasing the productivity of an electroerosion drill
DE59706249D1 (de) * 1997-10-14 2002-03-14 Agathon Ag Maschinenfabrik Sol Verfahren zum Schleifen von Oberflächen von Werkstücken und Vorrichtung zur Durchführung des Verfahrens
JP2000061839A (ja) * 1998-08-19 2000-02-29 Rikagaku Kenkyusho マイクロ放電ツルーイング装置とこれを用いた微細加工方法
JP2001353648A (ja) * 2000-06-16 2001-12-25 Inst Of Physical & Chemical Res 大口径工作物のｅｌｉｄ鏡面研削装置及び方法
JP2003170328A (ja) * 2001-11-30 2003-06-17 Toshiba Mach Co Ltd 工具、工具ホルダおよび工作機械
US7118448B2 (en) * 2001-12-26 2006-10-10 Koyo Machine Industries Co., Ltd. Truing method for grinding wheel, its truing device and grinding machine
ATE356693T1 (de) * 2003-02-07 2007-04-15 Koninkl Philips Electronics Nv Schleifmaschine
ATE333966T1 (de) * 2003-04-22 2006-08-15 Agathon Ag Maschf Vorrichtung zum konditionieren einer topfförmigen schleifscheibe einer schleifmaschine
US7150101B2 (en) * 2003-12-15 2006-12-19 General Electric Company Apparatus for fabricating components
CN101001720A (zh) * 2004-08-16 2007-07-18 丰田万磨株式会社 旋转式金刚石修整器
CN200974191Y (zh) * 2006-11-21 2007-11-14 青岛理工大学 金刚石砂轮修整装置
US8016644B2 (en) * 2007-07-13 2011-09-13 UNIVERSITé LAVAL Method and apparatus for micro-machining a surface

Also Published As

Publication number Publication date
DE502007004211D1 (de) 2010-08-05
US20090163121A1 (en) 2009-06-25
EP2072182A1 (de) 2009-06-24
JP5363091B2 (ja) 2013-12-11
CN101462243B (zh) 2013-05-29
CN101462243A (zh) 2009-06-24
US8410390B2 (en) 2013-04-02
JP2009184103A (ja) 2009-08-20

Similar Documents

Publication Publication Date Title
EP2072182B1 (de) Schleifmaschine mit einer Vorrichtung zum Konditionieren einer Schleifscheibe und Verfahren dazu
EP0909611B1 (de) Verfahren zum Schleifen von Oberflächen von Werkstücken und Vorrichtung zur Durchführung des Verfahrens
EP2516109A1 (de) Verfahren zum rundschleifen von langen, dünnen rundstangen und rundschleifmaschine zur durchführung des verfahrens mit einer nachlaufenden, selbstzentrierenden lünette
DE10322360A1 (de) Vorrichtung zum Feinbearbeiten von ebenen Flächen
EP3271111B1 (de) Verfahren und schleifmaschine zum schleifen von nuten aufweisenden werkstücken
DE19840738C5 (de) Verfahren zur Semifinish- oder Finishbearbeitung von Oberflächen rotationssymmetrischer Abschnitte von Werkstücken aus hartem oder gehärtetem Werkstoff und Drehwerkzeug zur Durchführung des Verfahrens
EP2607006B1 (de) Schwenkbare Drahtführung
EP0293673B1 (de) Verfahren und Vorrichtung zum mechanischen Schleifen von Werkstücken mittels elektrisch leitfähiger Schleifwerkzeuge
EP0481348A2 (de) Verfahren und Vorrichtung zum Abrichten von Schleifscheiben
DE102004013031A1 (de) Verfahren und Maschine zur Herstellung einer Walze
DE10042613A1 (de) Verfahren und Vorrichtung zum elektrolytischen Abrichten einer Honschleifscheibe
DE202018105343U1 (de) Vorrichtung zum Abrichten eines Honwerkzeuges sowie mit der Vorrichtung ausgestattete Bearbeitungsmaschine, Honleiste und Honwerkzeug
DE102017110196B4 (de) Verfahren und Schleif- und Erodiermaschine zur Bearbeitung eines Werkstücks
EP3829813B1 (de) Vorrichtung und verfahren zum bearbeiten eines werkstücks, insbesondere eines mit schneiden besetzten werkstücks, mittels eines schleif- oder erodierwerkzeugs
DE202020004003U1 (de) Werkzeugmaschine zur Laserkonditionierung von Schleifwerkzeugen unabhängig von deren Spezifikation
DE60122901T2 (de) Kontakterentladungsabricht- und ausrichtverfahren und vorrichtung
DE912057C (de) Verfahren und Vorrichtung zum aufeinanderfolgenden Scharfschleifen und Feinstschleifen bzw. Laeppen von Drehmeisseln oder anderen Zerspanungswerkzeugen
DE2336705B2 (de) Innenschleifverfahren
EP1470894B1 (de) Vorrichtung zum Konditionieren einer topfförmigen Schleifscheibe einer Schleifmaschine
DE102017001601B4 (de) Werkzeug zum thermischen Beschichten
DE1113388B (de) Verfahren zum Abrichten eines Schleifwerkzeuges
EP3852972A1 (de) Verfahren zum abrichten eines honwerkzeuges, vorrichtung zur anwendung des verfahrens sowie mit der vorrichtung ausgestattete bearbeitungsmaschine, honleiste und honwerkzeug
EP1475186B1 (de) Verfahren und Vorrichtung zum Rundschleifen
DE102009008811B4 (de) Konditioniervorrichtung zum Konditionieren einer Schleifscheibe und Verfahren zum Konditionieren einer Schleifscheibe
DE102015121316A1 (de) Stromübertragung für das elektroerosive Abrichten

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 IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK RS

17P Request for examination filed

Effective date: 20091012

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

AKX Designation fees paid

Designated state(s): CH DE LI

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH DE LI

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: BOVARD AG PATENTANWAELTE

REF Corresponds to:

Ref document number: 502007004211

Country of ref document: DE

Date of ref document: 20100805

Kind code of ref document: P

REG Reference to a national code

Ref country code: CH

Ref legal event code: PFA

Owner name: AGATHON AG MASCHINENFABRIK

Free format text: AGATHON AG MASCHINENFABRIK# #4503 SOLOTHURN (CH) -TRANSFER TO- AGATHON AG MASCHINENFABRIK# #4503 SOLOTHURN (CH)

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: 20110324

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502007004211

Country of ref document: DE

Effective date: 20110323

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230630

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

Ref country code: DE

Payment date: 20231214

Year of fee payment: 17

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

Ref country code: CH

Payment date: 20240101

Year of fee payment: 17