WO2002006008A1 - Procede de centrage/dressage par decharge au contact et dispositif associe - Google Patents
Procede de centrage/dressage par decharge au contact et dispositif associe Download PDFInfo
- Publication number
- WO2002006008A1 WO2002006008A1 PCT/JP2001/006040 JP0106040W WO0206008A1 WO 2002006008 A1 WO2002006008 A1 WO 2002006008A1 JP 0106040 W JP0106040 W JP 0106040W WO 0206008 A1 WO0206008 A1 WO 0206008A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- dressing
- tooling
- electrode
- contact discharge
- contact
- Prior art date
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Classifications
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B53/00—Devices or means for dressing or conditioning abrasive surfaces
- B24B53/04—Devices or means for dressing or conditioning abrasive surfaces of cylindrical or conical surfaces on abrasive tools or wheels
-
- 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
-
- 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
Definitions
- the present invention relates to a contact discharge tooling 'dressing method and apparatus using a double ring-shaped rotating electrode.
- Super-abrasive grinding wheels have less wear than conventional grinding wheels and are suitable for high-precision shape creation.
- tooling and dressing is difficult, so it is not widely used.
- the present invention provides a contact discharge truing and dressing method capable of extremely easily performing the grinding and dressing of a superabrasive stone, particularly a superabrasive stone having a metal binder, and a method thereof. It is intended to provide a device.
- the present invention in order to achieve the above object,
- a rotating non-conductive truing / dressing grindstone is brought into contact with a pair of electrodes to which a DC voltage or a pulse voltage is applied.
- a contact discharge tooling and dressing method in which the non-conductive tooling and dressing grindstone is tooled and dressed by contact discharge generated when a circuit is opened and closed. a part of the side surface of the double ring-shaped rotary electrode insulated by an insulator of m or less is used as a pair of electrodes.
- a rotating conductive tooling / dressing grindstone is brought into contact with a pair of electrodes to which a DC voltage or a pulse voltage is applied, and the positive electrode—electrode chips—grinding stone binder—electrode
- the contact discharge generated when opening and closing the circuit composed of the chip and the negative electrode causes the conductive tooling 'dressing grindstone to be dressed and dressed by a contact discharge tooling and dressing device. It is characterized by comprising a double ring-shaped rotary electrode insulated by an insulator, and a pair of electrodes composed of a part of the side surface of the double ring-shaped rotary electrode.
- a rotating non-conductive tooling 'dressing wheel is brought into contact with a pair of electrodes to which a DC voltage or pulse voltage is applied, and intermittently from the positive electrode-electrode chip-negative electrode
- a contact discharge tooling and dressing apparatus in which the non-conductive tooling / dressing grindstone is dressed and dressed by a contact discharge generated when the configured circuit is opened and closed. It is characterized by comprising a double ring-shaped rotary electrode insulated by an insulator of not more than m and a pair of electrodes consisting of a part of the side surface of the double ring-shaped rotary electrode.
- the contact discharge tooling and dressing device according to the above (3), (4) or (5), characterized in that the contact discharge tooling and dressing device has a structure capable of supplying power to a double ring type rotating electrode having a different diameter. I do.
- the device according to [3], [4] or [5] is used, and the driving device for the double ring-shaped rotary electrode is provided with a cross movement mechanism and a rotation mechanism. It is installed on a numerically controlled moving table equipped to perform high-precision integrated tooling and dressing.
- the contact discharge power consumption is controlled by numerical control or automatic control based on the roundness of the estimated tooling' dressing grindstone.
- E ⁇ It features high-precision drawing and dressing by automatically adjusting the size of Ip / 2.
- the type of the supply voltage to the double ring type rotating electrode is set to DC voltage so that the control is performed more stably. It is characterized by automatic switching between pulse voltages.
- a displacement sensor for measuring the position of the electrode side surface is provided on the electrode side surface, and the tooling is performed. It is characterized in that tooling and dressing are performed while measuring the amount.
- FIG. 1 is a configuration diagram of a contact discharge tooling and dressing apparatus showing an embodiment of the present invention.
- FIG. 2 is a block diagram of a control device of the contact discharge tooling and dressing device according to the embodiment of the present invention.
- FIG. 3 is an explanatory diagram of a contact discharge tooling and dressing method showing an embodiment of the present invention.
- FIG. 4 is an enlarged view of part A of FIG. 3 and illustrates the tooling and dressing mechanism (part 1).
- FIG. 5 is an enlarged view of part A of FIG. 3 and illustrates the tooling and dressing mechanism (part 2).
- FIG. 6 is a main part configuration diagram of a contact discharge tooling dressing device having an electrode feed drive mechanism according to an embodiment of the present invention.
- FIG. 7 is a configuration diagram of a power supply mechanism of the contact discharge tooling and dressing apparatus according to the embodiment of the present invention.
- FIG. 8 is a cross-sectional view showing an example in which the diameter of the double-ring rotary electrode of the contact discharge tooling and dressing device shown in FIG. 7 is changed.
- FIG. 9 is an explanatory diagram of various contact discharge truing and dressing methods of the present invention.
- FIG. 10 is a view showing a method for removing rotational vibration on the side surface of an electrode according to an embodiment of the present invention.
- FIG. 11 shows an embodiment of the present invention.
- -It is explanatory drawing of an ining 'dressing method.
- FIG. 12 shows a configuration of a contact discharge truing / dressing apparatus in which a driving device for a double ring-shaped rotary electrode according to an embodiment of the present invention is installed on a numerically controlled moving table provided with a cross moving mechanism and a rotating mechanism.
- FIG. 13 is an explanatory diagram of a method for numerically controlling the feed speed of the double ring-shaped rotary electrode in the direction of the rotation axis according to the embodiment of the present invention.
- FIG. 14 is an explanatory diagram of a method for estimating the roundness of a grindstone according to an embodiment of the present invention.
- FIG. 15 shows a method of automatically adjusting the magnitude of the contact discharge power consumption E ⁇ Ip / 2 by numerical control or automatic control based on the estimated value of the roundness of a grinding wheel according to an embodiment of the present invention.
- FIG. 16 is a diagram illustrating a method of automatically terminating contact discharge tooling and dressing when the estimated value of the roundness of a grindstone reaches a predetermined value according to the embodiment of the present invention.
- FIG. 17 shows a method of automatically switching the type of the supply voltage to the double-ring type rotating electrode between the DC voltage and the pulse voltage so that the control according to the embodiment of the present invention is performed more stably.
- FIG. 18 is an explanatory diagram of a method for performing contact discharge pulling and dressing while measuring the amount ofucing according to an embodiment of the present invention.
- FIG. 19 is a view showing a modification of the method for performing contact discharge tooling and dressing shown in FIG.
- FIG. 20 is an explanatory diagram of a contact discharge truing and dressing method applied to in-process tooling and dressing showing an embodiment of the present invention and correcting a tool path based on the amount of tooling. .
- FIG. 21 is a view showing a twin-dressing and dressing apparatus having a double ring-shaped rotating electrode in which a conventional grindstone (non-conductive grindstone) according to an embodiment of the present invention is disposed.
- FIG. 22 is a view showing a truing dressing apparatus having a double ring-shaped rotating electrode having a conventional grindstone (a non-conductive grindstone) arranged outside, showing an embodiment of the present invention.
- FIG. 1 is a configuration diagram of a contact discharge truing and dressing apparatus showing an embodiment of the present invention.
- noted c shows an example of applying the contact discharge vine one Ingu ⁇ Doretsushingu method of the double-ring-shaped rotating electrode type on the cutting edge crane one queuing profile grinding ffi stones, in the first illustration of rolled stone for profile grinding
- the rotating shaft and the rotating shaft of the double ring-shaped rotating electrode are shown perpendicular to each other, this is for the sake of simplicity in the explanation, and the cutting edge of the grinding wheel for profile grinding is actually 30. 30 between these axes to form a V-shape. Gave the angle.
- 1 is a grinding stone for profile grinding (grinding and dressing whetstone)
- 2 is a base
- 3 is a front cover
- 4 is a ⁇ ring
- 5 is a ⁇ ring presser lid
- 6 is a rear cover.
- 7 is a connector
- 8 is a cover
- 9 is a handle
- 10 is a front limiter
- 11 is a rear limiter
- 12 is a motor bracket
- 13 is a stepping motor
- 14 is a power coupling
- 15 is a ball.
- Screw 16 is a ball screw support unit
- 17 is a nut
- 18 is a nut bracket
- 19 is a spindle moving table
- 20 is a linear guide rail
- 21 is a linear guide slider
- 22 is a motor bracket.
- 23 is a DC motor
- 24 is a coupling
- 25 is a spindle
- 26 is a spindle support unit
- 27 is a spindle auxiliary servo unit
- 28 is a mechanical lock
- 29 is an electrode holder
- 30 Is the insulating layer
- 31 is the outer ring of the double ring type rotating electrode 3 2 double ring-shaped rotating electrode insulating layer, 3 3 double ring-shaped rotating electrode inner ring, 3 4, 3 5 power supply brush, 3-6 power supply brush bracket 3 7 is a displacement sensor.
- a ball screw support unit 16 is fixed to the base 2, and thereby a ball screw 15 having a pitch of 1 mm is supported.
- One end of the ball screw 15 is connected to a rotating shaft of a stepping motor 13 via a coupling 14 and is driven to rotate at a step angle of 0.1 °.
- the stepping motor 13 is fixed to the base 2 by a motor bracket 12.
- the nut 17 is engaged with the ball screw 15 and is sent in the direction of the rotation axis by the rotation of the stepping motor 13.
- the nut bracket 18 is fixed to the nut 17 so that when the switch of the front limiter 10 or the rear limiter 11 is pressed, the stepping motor stops.
- linear guide rails 20 extending in the electrode rotation axis direction are fixed to the base 2 in parallel.
- Each linear guide rail 20 is equipped with two linear guide sliders 21.
- the spindle moving table 19 is fixed to the linear guide slider 21 and the nut bracket 18 and is driven in the direction of the electrode rotation axis by the driving motor 13.
- the main shaft 25 is supported by a main shaft subunit 26 fixed on a moving table and a main shaft auxiliary support unit 27, and one end thereof is connected to a DC motor 2 for rotating and driving it via a coupling 24. Connected to 3.
- the DC motor 23 is fixed on the spindle moving table 19 using a motor bracket 22.
- Carbon (or copper) was used as the electrode material for the outer ring 31 and the inner ring 33 of the double ring-shaped rotating electrode, and epoxy resin was used for the double ring-shaped rotating electrode insulating layer 32 that insulates both.
- the thickness of the insulating layer between the electrodes was about 500 ⁇ m.
- Double ring type rotating electrode and the electrode holder 29 are bonded by an insulating layer 30 made of a thermoplastic resin having high insulating properties.
- Double ring type rotary electrode is mechanical lock 2 It is fixed to the spindle 25 by 8.
- the outer ring 31 and the inner ring 33 of the double ring type rotating electrode are in contact with power supply brushes 34, 35 which are pressed by springs, and power is supplied by this.
- These power supply brushes 34, 35 are supported by a power supply brush bracket 36, which is fixed on a spindle moving table 19, and is made of baselite.
- This embodiment does not employ the power supply system according to the sixth aspect of the present invention.
- the displacement sensor 37 is installed on the table or the base 2 of the grinding machine, and monitors the position of the electrode side surface to monitor the position of the cutting edge of the profile grinding wheel.
- FIG. 2 is a diagram showing the control of a contact discharge tooling and dressing device according to an embodiment of the present invention. It is a block diagram of a control apparatus.
- 38 is a discharge current limiting resistor
- 39 is a Hall current detector
- 40 is a numerical processing device
- 41 is a digital input device
- 42 is a digital output device
- 43 is an AD converter
- 4 is a DA converter
- 45 is a peak detection circuit
- 46 is a low-pass filter
- 47 is a VF converter
- 48 is a switching circuit
- 49 is a Y-type relay
- 50 is a power amplifier circuit
- 52 and 53 are analog switches
- 54 is a DC motor driver
- 55 is a manual operation device
- 56 is an amplifier.
- the control device will be described with reference to FIG.
- a / D converter 43 and a numerical processing device 40 having a D / A converter 44 are used for control.
- a power amplifying circuit 50 using a power operational amplifier is used as a power supply of the discharging circuit, and the output voltage can be set by a finger from the numerical processing unit 40. As a result, it is possible to continuously change the truing conditions from the rough truing to the finishing truing.
- the output of the power amplification circuit 50 is electrically insulated from a commercial power supply and a ground for safety.
- the positive electrode of the output of the power amplification circuit 50 is directly connected to the power supply brush 35.
- the negative pole of the output of the power amplification circuit 50 is connected to a Y-type relay 49 that can be switched by a command from the numerical processing unit 40, where switching between DC voltage and pulse voltage is performed.
- a switching circuit 48 composed of a field-effect transistor is connected, and then a DC voltage connected to the power supply brush 34 via the Hall current detector 39 and the discharge current limiting resistor 38 is applied. Do not go through the switching circuit 48.
- the switching frequency of the switching circuit 48 can be set by a command from the numerical processing unit 40 by using a VF converter (voltage-to-frequency converter) 47.
- the output from the Hall current detector 39 is divided into three paths and taken into the numerical processing unit 40.
- the first path is a path for directly taking in the output.
- the second path is a path taken after passing through the peak detection circuit 45.
- the peak value of the contact discharge current can be obtained from the signal voltage of the second path (corresponding to the invention according to claims 11, 12, or 13).
- the peak detection circuit 45 is a finger from the numerical processing unit 40. It is reset at a cycle of one turn or more of the grinding wheel.
- Third path is one-pass filter
- the average value Ira of the contact discharge current can be obtained from the signal voltage of the third path (corresponding to the invention according to claim 12).
- start-stop command, rotation direction switching, and rotation speed adjustment of DC ⁇ 23 are all performed manually by the manual operation device 55, and the alarm output signal when an abnormal force is generated in the DC motor 23 is output. Only the signal line is connected to the numerical processing unit 40, so that processing in the event of an abnormality can be performed.
- the output of the displacement sensor 37 is amplified by the amplifier 56, and then taken into the numerical processing unit 40, which is used for the modular ring at the cutting edge position of the grinding wheel 1 for profile grinding (see Fig. 1). Is done.
- FIG. 3 is an explanatory view of a contact discharge truing dressing method according to an embodiment of the present invention
- FIGS. 4 and 5 are diagrams enlarging a portion A of FIG. 3 and explaining a tooling mechanism thereof. is there.
- a double ring-shaped rotating electrode 201 composed of an electrode inner ring 202, an insulating layer 203, and an electrode outer ring 204 is used. Then, a DC voltage or a pulse voltage is applied between the electrode inner ring 202 and the electrode outer ring 204 to rotate.
- the electrode outer ring 204 0 2 Electrode swarf 2 2 1—Contact discharge occurs in the electrode swarf 22 0 and 22 1 of the circuit composed of the inner electrode ring 202, and the heat causes the conductive binder 1 02 melts and abrasive grains 103 fall off.
- the insulating layer 20 The thickness of 3 may be several hundred / m or more.
- the thickness of the layer 12 is made several hundreds // m or less, it can be applied to the tooling of the non-conductive grindstone 110.
- the electrode outer ring 2 13 electrode chips 2 2 2—electrode inner ring 2 1 1
- Contact discharge occurs at the electrode chips 222 in the circuit composed of the electrodes, and the heat dissolves the non-conductive binder 111, causing the abrasive grains 112 to fall off.
- the thickness of the insulating layer between the electrodes it becomes possible to perform dressing and dressing of the non-conductive grindstone.
- 105 is a DC power supply or a pulse power supply.
- FIG. 6 is a main part configuration diagram of a contact discharge truing and dressing apparatus having an electrode feed mechanism according to an embodiment of the present invention.
- the double ring-shaped rotary electrode 201 is configured to be fed in the direction of the rotation axis of the double ring-shaped rotary electrode 201 by an electrode feed drive mechanism 120.
- 100 is a grindstone
- 105 is a DC power supply or a pulse power supply.
- FIG. 7 is a configuration diagram of a power supply mechanism of a contact discharge tooling dressing device showing an embodiment of the present invention.
- 1 2 1 is a rotating main shaft of the double ring type rotating electrode 201
- 1 2 2 is a conductor ring fixed to the rotating main shaft 1 2 1
- 1 2 3 is an insulating layer
- 1 2 4 is electrode Flange
- 1 2 5 is a washer
- 1 2 6 is an electrode fixing bolt for electrically connecting the rotating spindle 1 2 1 and the electrode inner ring 2
- 2 is a electrode outer ring 2 4 and the electrode flange 1 2 4
- the power supply springs for electrically connecting the power supply brushes, and the power supply brushes 1 28 and 1 2 9 are provided.
- the power supply brush 1 2 8 One conductor ring 1 2 2—Rotating spindle 1 2 1 One electrode Fixing bolt 1 2 6 —Power is supplied to the inner electrode ring 202 via the washer 1 25 and the power supply brush 1 2 9 —Electrode flange 1 2 4 —Supplied to the outer electrode ring 204 via the power supply spring 1 2 7.
- FIG. 8 is a cross-sectional view showing an example of the contact discharge truing and dressing apparatus shown in FIG. 7 in which the diameter of the double ring-shaped rotary electrode is changed.
- a double ring-shaped rotating electrode 201 'having a small diameter is provided.
- FIG. 9 is an explanatory view of various contact discharge truing and dressing methods of the present invention.
- FIG. 9 (a) shows a contact discharge in a liquid
- FIG. 9 (b) shows a contact discharge in a spray
- FIG. In (c) the contact discharge is performed in an air environment.
- the same parts as those in FIG. 3 are denoted by the same reference numerals, and description thereof will be omitted.
- a liquid supply nozzle 301 is arranged at the contact discharge point, and the contact discharge is performed while supplying the liquid 302. Let it do.
- a spray supply nozzle 303 is arranged at the contact discharge location, and contact discharge is performed while supplying spray 304. Is performed.
- the contact discharge may be performed in the air without any supply.
- FIG. 10 is a view showing a method of removing the rotational vibration on the side surface of the electrode according to the embodiment of the present invention.
- FIG. 11 is an explanatory view of a contact discharge tooling and dressing method for obtaining a V-shaped grinding wheel tip shape according to an embodiment of the present invention.
- the double ring type rotary electrode is provided while a predetermined angle 0 is given between the rotary spindle 400 of the double ring type rotary electrode 405 and the rotary axis 402 of the grinding wheel 401.
- a predetermined angle 0 is given between the rotary spindle 400 of the double ring type rotary electrode 405 and the rotary axis 402 of the grinding wheel 401.
- FIG. 12 shows an embodiment of the present invention, in which a drive device for a double ring-shaped rotary electrode is mounted on a numerically controlled moving table provided with a cross-moving mechanism and a rotating mechanism, and a configuration of a contact discharge tool / single dressing apparatus.
- the driving device of the double ring type rotary electrode 4 15 is installed on a numerically controlled moving table 4 18 provided with a cross moving mechanism and a rotating mechanism.
- contact discharge tooling 'dressing is performed by associating the double-ring rotating electrode 4 15 with the grinding wheel 4 10 fixed to the grinding wheel rotating shaft 4 1 1.
- the drive mechanism of the rotating main shaft 4 16 of the electrode 4 15, that is, the tooling / dressing device main body 4 17 is installed on the numerically controlled movement table 4 18 provided with a cross movement mechanism and a rotation mechanism. This makes it possible to perform high-precision total tooling and dressing.
- FIG. 13 is a diagram illustrating a method of numerically controlling the feed speed of the double ring-shaped rotary electrode in the direction of the rotating shaft according to an embodiment of the present invention.
- FIG. 13 (a) is a diagram of the system configuration
- FIG. 13 (b) is a waveform diagram of the current by the numerical control.
- a contact discharge current limiting resistor R and a current detector A are inserted on the power supply circuit side of the device so as to be in series with the double ring-shaped rotating electrode 201, and the contact discharge current peaks.
- the contact discharge state can be kept extremely stable, and periodic irregularities occurring on the grinding wheel working surface can be suppressed.
- the rate at which the electrode is mechanically wasted is reduced, so that electrode consumption can be reduced. This preserves the working environment in a clean environment It also leads to doing.
- FIG. 14 is an explanatory diagram of a method of estimating the roundness of ffi stones showing an embodiment of the present invention.
- FIG. 14 (a) is a configuration diagram of the system
- FIG. 14 (b) is a diagram. It is a waveform diagram of the current by the numerical control.
- the average value I m and the peak value I P of the output from the current detector A are obtained in a cycle of one turn or more of the grinding wheel, and the roundness of the grinding wheel is estimated based on the value of I m / I P Then, do dressing 'dressing.
- a high roundness of the grindstone larger the value of I m / I P.
- FIG. 15 shows an embodiment of the present invention. 1. A method of automatically adjusting the magnitude of the contact discharge power consumption E ⁇ I p / 2 by numerical control or automatic control based on the estimated roundness of a stone. FIG.
- FIG. 16 is an explanatory view of a method of automatically terminating contact discharge tooling and dressing when an estimated value of roundness of a grindstone reaches a predetermined value according to an embodiment of the present invention.
- an automatic end processing device 620 that automatically ends the processing of dressing and dressing is provided, and the trueness of the grinding stone is provided. Automatic truing and dressing when circularity reaches a satisfactory value So that it can be terminated.
- FIG. 17 shows an embodiment of the present invention, in which the type of the supply voltage to the double-ring type rotating electrode is automatically switched between DC voltage and pulse voltage so that the control is more stably performed.
- an automatic switching device 630 for automatically switching the type of the supply voltage to the double ring type rotary electrode between the DC voltage and the pulse voltage is provided so that the control is performed more stably.
- FIG. 18 is an explanatory view showing a method for performing contact discharge tooling 'dressing while measuring the tooling amount, showing an embodiment of the present invention.
- a displacement sensor 37 for measuring the position of the side surface of the electrode is provided on the side surface of the electrode, and the smoothing and dressing is performed while measuring the amount of smoothing. Further, as shown in FIG. 19, the displacement sensor 37 may be provided in the tooling device main body 71.
- FIG. 20 is an explanatory view of a contact discharge tooling-ing 'dressing method which is applied to in-process tooling and dressing showing an embodiment of the present invention and is performed while correcting a tool path based on the amount of tooling. is there.
- reference numeral 8001 denotes a compensating device for compensating a thread pass based on the amount of tooling based on an output i from the sensor 37
- reference numeral 8002 denotes a numerically controlled movement for mounting a workpiece 803. It is a table.
- contact discharge truing and dressing are performed while correcting the tool path based on the amount of tooling by applying the present invention to twin process tuning and dressing.
- the electrode material adheres to the protruding portion (the portion where the runout is large) of the dressing and dressing grindstone, and as a result, the electrode continues to recede. May occur. So solve this problem In order to decide, it is effective to adopt the following configuration.
- FIG. 21 is a view showing a tooling dressing apparatus having a double ring-shaped rotating electrode in which a conventional grindstone (non-conductive grindstone) is disposed inside showing an embodiment of the present invention.
- Double ring type rotating electrode 910 composed of an inner electrode ring 9 13, an insulating layer 9.1 4, and an outer electrode electrode 9 15 rotated by the rotating main shaft 9 11 of the double ring type rotating electrode 9 10
- a conventional grindstone (non-conductive grindstone) 9 12 is placed inside the box.
- the conventional grindstone (non-conductive grindstone) 912 placed inside the rotating electrode enables accurate removal.
- FIG illustrates a Tsuruingu-Doretsushingu device having a conventional grindstone double ring-shaped rotating electrode (non-conductive grindstone) arranged outside of an embodiment of the present invention
- the double ring type rotating electrode 9 20 composed of the electrode inner ring 9 2 2, the insulating layer 9 2 3, and the electrode outer ring 9 2 4 rotated by the rotating main shaft 9 2 1 of the double ring type rotating electrode 9 2 0
- a conventional grindstone (non-conductive grindstone) 9 25 is placed on the outside.
- the contact discharge tooling-dressing method and apparatus of the present invention can perform truing and dressing of a superabrasive grindstone, particularly a superabrasive grindstone having a metal binder, in an extremely simple manner, It is suitable as a contact discharge device capable of forming a shape.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding-Machine Dressing And Accessory Apparatuses (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE60122901T DE60122901T2 (de) | 2000-07-14 | 2001-07-12 | Kontakterentladungsabricht- und ausrichtverfahren und vorrichtung |
KR10-2003-7000527A KR100514205B1 (ko) | 2000-07-14 | 2001-07-12 | 접촉방전 트루잉/드레싱 방법 및 그 장치 |
US10/332,773 US6939457B2 (en) | 2000-07-14 | 2001-07-12 | Contact-discharge truing/dressing method and device therefor |
EP01949955A EP1306164B1 (en) | 2000-07-14 | 2001-07-12 | Contact-discharge truing/dressing method and device therefor |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000213605 | 2000-07-14 | ||
JP2000-213605 | 2000-07-14 | ||
JP2001-188638 | 2001-06-21 | ||
JP2001188638A JP4010392B2 (ja) | 2000-07-14 | 2001-06-21 | 接触放電ツルーイング・ドレッシング方法およびその装置 |
Publications (1)
Publication Number | Publication Date |
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WO2002006008A1 true WO2002006008A1 (fr) | 2002-01-24 |
Family
ID=26596015
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2001/006040 WO2002006008A1 (fr) | 2000-07-14 | 2001-07-12 | Procede de centrage/dressage par decharge au contact et dispositif associe |
Country Status (7)
Country | Link |
---|---|
US (1) | US6939457B2 (ja) |
EP (1) | EP1306164B1 (ja) |
JP (1) | JP4010392B2 (ja) |
KR (1) | KR100514205B1 (ja) |
CN (1) | CN1192857C (ja) |
DE (1) | DE60122901T2 (ja) |
WO (1) | WO2002006008A1 (ja) |
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CN107030343A (zh) * | 2017-06-09 | 2017-08-11 | 常州工学院 | 球头复合阴极在线修整装置及其使用方法 |
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CN100465713C (zh) * | 2005-06-20 | 2009-03-04 | 乐金显示有限公司 | 液晶显示设备用研磨机轮和用其制造液晶显示设备的方法 |
CN104493719B (zh) * | 2015-01-07 | 2017-01-18 | 常州工学院 | 一种金刚石回转体砂轮线电极放电‑车削复合修整方法及装置 |
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 |
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JPH04360765A (ja) * | 1991-02-04 | 1992-12-14 | Niitoretsukusu Honsha:Kk | 接触放電ドレッシング・ツルーイング方法および装置と、そのための電極部材 |
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US2719902A (en) * | 1953-07-22 | 1955-10-04 | Gen Motors Corp | Multi-element electrode |
CH349717A (de) * | 1957-03-18 | 1960-10-31 | Agie Ag Ind Elektronik | Elektroerosives Schleifverfahren und Einrichtung zu seiner Durchführung |
CH355235A (de) * | 1957-03-18 | 1961-06-30 | Agie Ag Ind Elektronik | Verfahren und Einrichtung zum elektroerosiven Schleifen |
EP0192773A4 (en) * | 1984-06-14 | 1988-07-25 | Ohyojiki Kenkyujo Yk | CUTTING AND TRIMMING PROCESS USING A CONDUCTIVE ABRASIVE DISC. |
JPH0278256A (ja) | 1988-09-13 | 1990-03-19 | Fujitsu Ltd | 浸漬冷却モジュール |
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DE4033137C1 (ja) * | 1990-10-18 | 1991-11-14 | Wendt Gmbh, 4005 Meerbusch, De | |
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2001
- 2001-06-21 JP JP2001188638A patent/JP4010392B2/ja not_active Expired - Fee Related
- 2001-07-12 WO PCT/JP2001/006040 patent/WO2002006008A1/ja active IP Right Grant
- 2001-07-12 EP EP01949955A patent/EP1306164B1/en not_active Expired - Lifetime
- 2001-07-12 DE DE60122901T patent/DE60122901T2/de not_active Expired - Fee Related
- 2001-07-12 CN CNB018128025A patent/CN1192857C/zh not_active Expired - Fee Related
- 2001-07-12 KR KR10-2003-7000527A patent/KR100514205B1/ko not_active IP Right Cessation
- 2001-07-12 US US10/332,773 patent/US6939457B2/en not_active Expired - Fee Related
Patent Citations (3)
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JPH0278256U (ja) * | 1988-12-05 | 1990-06-15 | ||
JPH03142164A (ja) * | 1989-10-27 | 1991-06-17 | Makino Milling Mach Co Ltd | 研削砥石の成形方法および装置 |
JPH04360765A (ja) * | 1991-02-04 | 1992-12-14 | Niitoretsukusu Honsha:Kk | 接触放電ドレッシング・ツルーイング方法および装置と、そのための電極部材 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107030343A (zh) * | 2017-06-09 | 2017-08-11 | 常州工学院 | 球头复合阴极在线修整装置及其使用方法 |
Also Published As
Publication number | Publication date |
---|---|
EP1306164B1 (en) | 2006-09-06 |
DE60122901D1 (de) | 2006-10-19 |
JP2002086356A (ja) | 2002-03-26 |
KR20030047990A (ko) | 2003-06-18 |
US6939457B2 (en) | 2005-09-06 |
JP4010392B2 (ja) | 2007-11-21 |
CN1192857C (zh) | 2005-03-16 |
KR100514205B1 (ko) | 2005-09-13 |
EP1306164A1 (en) | 2003-05-02 |
CN1441714A (zh) | 2003-09-10 |
EP1306164A4 (en) | 2004-05-06 |
US20040040864A1 (en) | 2004-03-04 |
DE60122901T2 (de) | 2007-02-22 |
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