US20220023994A1 - Dressing device and method for dressing a grinding tool - Google Patents
Dressing device and method for dressing a grinding tool Download PDFInfo
- Publication number
- US20220023994A1 US20220023994A1 US17/296,263 US201917296263A US2022023994A1 US 20220023994 A1 US20220023994 A1 US 20220023994A1 US 201917296263 A US201917296263 A US 201917296263A US 2022023994 A1 US2022023994 A1 US 2022023994A1
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- Prior art keywords
- tool
- rotation
- sharpening
- rotatable
- profiling
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Links
- 238000000034 method Methods 0.000 title claims abstract description 12
- 229910052582 BN Inorganic materials 0.000 claims description 4
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 230000001154 acute effect Effects 0.000 claims description 3
- 238000003754 machining Methods 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 2
- 229910052593 corundum Inorganic materials 0.000 description 2
- 239000010431 corundum Substances 0.000 description 2
- 241000549194 Euonymus europaeus Species 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
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
- B24B53/003—Devices or means for dressing or conditioning abrasive surfaces using at least two conditioning tools
-
- 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
- B24B51/00—Arrangements for automatic control of a series of individual steps in grinding a workpiece
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B53/00—Devices or means for dressing or conditioning abrasive surfaces
- B24B53/04—Devices or means for dressing or conditioning abrasive surfaces of cylindrical or conical surfaces on abrasive tools or wheels
- B24B53/053—Devices or means for dressing or conditioning abrasive surfaces of cylindrical or conical surfaces on abrasive tools or wheels using a rotary dressing tool
-
- 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 disclosure relates to a dressing device designed for profiling and sharpening a grinding tool.
- the disclosure further relates to a method for dressing a grinding tool.
- a dressing device of the generic type is known from U.S. Pat. No. 4,073,281 A, for example.
- a dressing roller and a sharpening roller are attached to a common spindle.
- the dressing roller and the sharpening roller rotate about mutually parallel axes, both rollers being driven by means of a single belt. In this case, no axial offset is provided between the two rollers.
- the devices according to U.S. Pat. No. 4,073,281 A are suitable for machining grinding wheels made of cubic boron nitride (CBN).
- a further dressing device which is also provided for machining CBN grinding wheels, is disclosed in U.S. Pat. No. 4,259,940 A.
- a roller provided for dressing can hereby rotate with a certain direction of rotation.
- the device according to U.S. Pat. No. 4,259,940 A comprises a roller for finishing (dressing roll), which rotates in the opposite direction if it is used for processing.
- the two processing tools i.e., said roller and said roll, are fastened next to one another on a common work spindle.
- the dressing device comprises two rotatable tools, namely a profiling tool and a sharpening tool.
- the tools have axes of rotation that are parallel to one another, which also includes an identity of the axes of rotation.
- the tools are offset from one another in the axial direction of the axes of rotation.
- the profiling tool can be set relative to the sharpening tool. There may be an adjustability between these tools at least in the common axial direction of the tools.
- the adjustability between the two tools can be used either to dress and sharpen the grinding wheel in succession or to use the profiling tool and the sharpening tool simultaneously—in different surface areas of the grinding tool.
- the two tools i.e., the profiling tool and the sharpening tool
- a non-rotatable coupling between the two tools can be released or could not be provided from the start. For example, this enables one of the tools to be driven while the other tool is at a standstill.
- tool drives can be implemented to allow the speed of one tool to be varied in relation to the speed of the other tool.
- each tool is driven by its own electric motor for this purpose. If the two tools of the dressing device have non-identical axes of rotation that are parallel to one another, then these axes of rotation can be set with respect to one another.
- the axes of rotation of the tools lie in a common plane with the axis of rotation of the grinding tool in each operating state.
- both the distance between the axis of rotation of the profiling tool and the axis of rotation of the grinding tool, and the distance between the sharpening tool and the axis of rotation of the grinding tool may be variable.
- the axis of rotation of the profiling tool lies in a first plane with the axis of rotation of the grinding tool
- the axis of rotation of the sharpening tool lies in a second plane with the axis of rotation of the grinding tool.
- An acute angle is enclosed between the two planes, for example, an angle of less than 45°, in particular an angle of less than 30°.
- An adjustability between the axes of rotation of the profiling tool and the grinding tool is provided, for example, in that the two axes of rotation of the tools of the dressing device are displaceable within the relevant plane. It is also possible to implement embodiments in which, alternatively or in addition, the two planes are pivotable relative to one another, wherein the axis of rotation of the grinding tool represents the pivot axis.
- the sharpening tool of the dressing device has, for example, corundum as a cutting material.
- the grinding tool to be processed may contain cubic boron nitride in a ceramic bond.
- the method according to the disclosure generally includes the processes of profiling and sharpening, both processes being carried out by the dressing device which has the profiling tool and the sharpening tool.
- the tools are fed and advanced relative to the grinding tool.
- the feed direction forms a right angle with the advancement direction. At least one of the variables of feed and advancement is set differently in the case of the two tools.
- the dressing device may be suitable for machining grinding tools for centerless throughfeed grinding.
- the combination of profiling and sharpening provides the grinding system with a sharpenable tool at an early stage.
- the dressing device according to the disclosure allows for a drastic shortening or even omission of the free grinding.
- the resulting process of sharpening by means of the variable sharpening tool integrated into the dressing, used simultaneously with the profiling tool or independently of the profiling tool, mainly removes bond components from the grinding tool. This increases the effective roughness depth of the grinding tool, which allows for a workpiece to be machined with low grinding forces.
- FIG. 1 shows components of a dressing device as well as a grinding tool to be processed in plan view
- FIG. 2 shows the arrangement according to FIG. 1 in a perspective view
- FIGS. 3 and 4 show a second exemplary embodiment of a dressing device in views analogous to FIGS. 1 and 2 ,
- FIGS. 5 and 6 show a third exemplary embodiment of a dressing device in views analogous to FIGS. 1 and 2 .
- a grinding tool 3 is shown, which is made of cubic boron nitride (CBN) with a ceramic bond.
- CBN cubic boron nitride
- a dressing device 1 is used, of which only two tools 4 , 5 are shown, namely a profiling tool 4 and a sharpening tool 5 .
- the profiling tool 4 is rotatable about an axis of rotation RP; the sharpening tool 5 is rotatable about an axis of rotation RSc.
- the axis of rotation of the grinding tool 3 is denoted by RA. All axes of rotation RA, RP, RSc are aligned parallel to one another in all exemplary embodiments and in all operating states.
- the axes of rotation RP, RSc coincide geometrically.
- the two tools 4 , 5 are moved here independently of one another.
- Each tool 4 , 5 of the dressing device 1 has its own electric drive.
- the tools 4 , 5 are displaceable independently of one another along the common axis of rotation RP, RSc.
- the distance between the axis of rotation RP, RSc of the tools 4 , 5 and the axis of rotation RA of the grinding tool 3 can be set.
- one of the tools 4 , 5 may be used for machining the grinding tool 3 , while the other tool 5 , 4 remains in a waiting position.
- the axes of rotation RP, RSc are displacable parallel to one another. In the configuration according to FIGS. 3 and 4 , the axes of rotation RP, RSc coincide. Based on this configuration, it is possible to move only one of the two tools 4 , 5 onto the grinding tool 3 in the radial direction of the axis of rotation RA. If the relevant tool 4 , 5 is then moved in the longitudinal direction of the rotational axes RP, RSc, the other tool 5 , 4 also performs this movement in the axial direction, and can remain out of engagement with the grinding tool 3 .
- FIGS. 5 and 6 show an exemplary embodiment in which the tools 4 , 5 are rotatable about spaced apart axes of rotation RP, RSc and are movable independently of one another along these axes of rotation RP, RSc.
- Each axis of rotation RP, RSc of the dressing device 1 can be set with respect to the axis of rotation RA of the grinding tool 3 .
- a first plane is defined by the axes of rotation RA, RP.
- a second plane is defined by the axes of rotation RA, RSc.
- An acute angle is formed between these planes, which intersect in the axis of rotation RA, which in the exemplary embodiment is less than 30 degrees.
- the sharpening tool 5 contains corundum as a cutting material and can also be used to clean the grinding tool 3 .
Abstract
A dressing device for profiling and sharpening a grinding tool includes a rotatable sharpening tool and a rotatable profiling tool axially offset from and settable relative to the rotatable sharpening tool. In one embodiment, the rotatable sharpening tool and the rotatable profiling tool have a common rotational axis, and the tools are settable along the common rotational axis. In another embodiment, a profiling tool axis of rotation is parallel to a sharpening tool axis of rotation. A method for dressing a grinding tool is also disclosed. The method includes profiling and sharpening the grinding tool with a single dressing device having a rotatable profiling tool with a first feed rate and a first advancement rate, and a rotatable sharpening tool with a second feed rate and a second advancement rate. The two feed rates or the two advancement rates are different.
Description
- This application is the United States National Phase of PCT Appin. No. PCT/DE2019/101024 filed Nov. 29, 2019, which claims priority to German Application No. DE102018130908.2 filed Dec. 5, 2018, the entire disclosures of which are incorporated by reference herein.
- The disclosure relates to a dressing device designed for profiling and sharpening a grinding tool. The disclosure further relates to a method for dressing a grinding tool.
- A dressing device of the generic type is known from U.S. Pat. No. 4,073,281 A, for example. In a first variant of the known dressing device, a dressing roller and a sharpening roller are attached to a common spindle. In a further variant of the dressing device according to U.S. Pat. No. 4,073,281 A (
FIG. 8 ), the dressing roller and the sharpening roller rotate about mutually parallel axes, both rollers being driven by means of a single belt. In this case, no axial offset is provided between the two rollers. The devices according to U.S. Pat. No. 4,073,281 A are suitable for machining grinding wheels made of cubic boron nitride (CBN). - A further dressing device, which is also provided for machining CBN grinding wheels, is disclosed in U.S. Pat. No. 4,259,940 A. A roller provided for dressing (truing wheel) can hereby rotate with a certain direction of rotation. Furthermore, the device according to U.S. Pat. No. 4,259,940 A comprises a roller for finishing (dressing roll), which rotates in the opposite direction if it is used for processing. The two processing tools, i.e., said roller and said roll, are fastened next to one another on a common work spindle.
- Dressing is understood to mean the combination of profiling and sharpening a grinding tool. Correspondingly, in a basic concept known per se, the dressing device comprises two rotatable tools, namely a profiling tool and a sharpening tool. The tools have axes of rotation that are parallel to one another, which also includes an identity of the axes of rotation. The tools are offset from one another in the axial direction of the axes of rotation. According to the disclosure, the profiling tool can be set relative to the sharpening tool. There may be an adjustability between these tools at least in the common axial direction of the tools.
- Depending on the embodiment of the dressing device, the adjustability between the two tools can be used either to dress and sharpen the grinding wheel in succession or to use the profiling tool and the sharpening tool simultaneously—in different surface areas of the grinding tool.
- According to one possible embodiment, the two tools, i.e., the profiling tool and the sharpening tool, have a common axis of rotation along which they can be set relative to one another. In this case, a non-rotatable coupling between the two tools can be released or could not be provided from the start. For example, this enables one of the tools to be driven while the other tool is at a standstill.
- Independently of the arrangement of the tools with respect to one another, tool drives can be implemented to allow the speed of one tool to be varied in relation to the speed of the other tool. For example, each tool is driven by its own electric motor for this purpose. If the two tools of the dressing device have non-identical axes of rotation that are parallel to one another, then these axes of rotation can be set with respect to one another.
- According to a first variant, the axes of rotation of the tools lie in a common plane with the axis of rotation of the grinding tool in each operating state. In this case, both the distance between the axis of rotation of the profiling tool and the axis of rotation of the grinding tool, and the distance between the sharpening tool and the axis of rotation of the grinding tool may be variable.
- According to a second variant, the axis of rotation of the profiling tool lies in a first plane with the axis of rotation of the grinding tool, and the axis of rotation of the sharpening tool lies in a second plane with the axis of rotation of the grinding tool. An acute angle is enclosed between the two planes, for example, an angle of less than 45°, in particular an angle of less than 30°. An adjustability between the axes of rotation of the profiling tool and the grinding tool is provided, for example, in that the two axes of rotation of the tools of the dressing device are displaceable within the relevant plane. It is also possible to implement embodiments in which, alternatively or in addition, the two planes are pivotable relative to one another, wherein the axis of rotation of the grinding tool represents the pivot axis.
- The sharpening tool of the dressing device has, for example, corundum as a cutting material. The grinding tool to be processed may contain cubic boron nitride in a ceramic bond.
- The method according to the disclosure generally includes the processes of profiling and sharpening, both processes being carried out by the dressing device which has the profiling tool and the sharpening tool. The tools are fed and advanced relative to the grinding tool. The feed direction forms a right angle with the advancement direction. At least one of the variables of feed and advancement is set differently in the case of the two tools.
- The dressing device may be suitable for machining grinding tools for centerless throughfeed grinding. The combination of profiling and sharpening provides the grinding system with a sharpenable tool at an early stage. Compared to conventional methods, which rely on a longer free grinding of the grinding tool, the dressing device according to the disclosure allows for a drastic shortening or even omission of the free grinding. The resulting process of sharpening by means of the variable sharpening tool integrated into the dressing, used simultaneously with the profiling tool or independently of the profiling tool, mainly removes bond components from the grinding tool. This increases the effective roughness depth of the grinding tool, which allows for a workpiece to be machined with low grinding forces.
- Below, three exemplary embodiments of the disclosure are explained in more detail by means of a drawing. In the figures:
-
FIG. 1 shows components of a dressing device as well as a grinding tool to be processed in plan view, -
FIG. 2 shows the arrangement according toFIG. 1 in a perspective view, -
FIGS. 3 and 4 show a second exemplary embodiment of a dressing device in views analogous toFIGS. 1 and 2 , -
FIGS. 5 and 6 show a third exemplary embodiment of a dressing device in views analogous toFIGS. 1 and 2 . - Unless otherwise stated, the following explanations relate to all exemplary embodiments. Parts that correspond to each other or have basically the same effect are marked with the same reference symbol in all figures. The same applies to the identification of geometric structures.
- In the figures, a grinding
tool 3 is shown, which is made of cubic boron nitride (CBN) with a ceramic bond. To dress the grindingtool 3, adressing device 1 is used, of which only twotools profiling tool 4 and a sharpeningtool 5. Theprofiling tool 4 is rotatable about an axis of rotation RP; the sharpeningtool 5 is rotatable about an axis of rotation RSc. The axis of rotation of the grindingtool 3 is denoted by RA. All axes of rotation RA, RP, RSc are aligned parallel to one another in all exemplary embodiments and in all operating states. - In the exemplary embodiment according to
FIGS. 1 and 2 , the axes of rotation RP, RSc coincide geometrically. The twotools tool dressing device 1 has its own electric drive. Thetools tools tool 3 can be set. - In the embodiment according to
FIGS. 1 and 2 , one of thetools tool 3, while theother tool - In the exemplary embodiment according to
FIGS. 3 and 4 , no adjustment of the axial distance is provided between thetools dressing device 1. In contrast, the axes of rotation RP, RSc are displacable parallel to one another. In the configuration according toFIGS. 3 and 4 , the axes of rotation RP, RSc coincide. Based on this configuration, it is possible to move only one of the twotools tool 3 in the radial direction of the axis of rotation RA. If therelevant tool other tool tool 3. In a modified execution of the method, it is also possible to use thedressing device 1 according toFIGS. 3 and 4 to bring thetools tool 3 simultaneously, i.e., to profile and sharpen the grindingtool 3 in a single pass by means of the synchronously operatedtools -
FIGS. 5 and 6 show an exemplary embodiment in which thetools dressing device 1 can be set with respect to the axis of rotation RA of the grindingtool 3. - In the design according to
FIGS. 5 and 6 , a first plane is defined by the axes of rotation RA, RP. A second plane is defined by the axes of rotation RA, RSc. An acute angle is formed between these planes, which intersect in the axis of rotation RA, which in the exemplary embodiment is less than 30 degrees. - In all designs, the control and synchronization of the
tools dressing device 1. The sharpeningtool 5 contains corundum as a cutting material and can also be used to clean the grindingtool 3. - 1 Dressing device
- 3 Grinding tool
- 4 Profiling tool
- 5 Sharpening tool
- RA Axis of rotation of the grinding tool
- RP Axis of rotation of the profiling tool
- RSc Axis of rotation of the sharpening tool
Claims (12)
1.-10. (canceled)
11. A dressing device for profiling and sharpening a grinding tool, comprising:
a rotatable sharpening tool; and
a rotatable profiling tool axially offset from and settable relative to the rotatable sharpening tool.
12. The dressing device of claim 11 , wherein:
the rotatable sharpening tool and the rotatable profiling tool have a common rotational axis; and
the rotatable profiling tool is settable relative to the rotatable sharpening tool along the common rotational axis.
13. The dressing device of claim 12 , wherein the rotatable sharpening tool is decoupled from the rotatable profiling tool with regards to rotation.
14. The dressing device of claim 11 , wherein:
the rotatable sharpening tool comprises a sharpening tool axis of rotation; and
the rotatable profiling tool comprises a profiling tool axis of rotation, parallel to the sharpening tool axis of rotation.
15. The dressing device of claim 14 , wherein the sharpening tool axis of rotation and the profiling tool axis of rotation can be set relative to one another.
16. The dressing device of claim 14 , further comprising the grinding tool comprising a grinding tool axis of rotation, wherein the sharpening tool axis of rotation, the profiling tool axis of rotation, and the grinding tool axis of rotation lie on a common plane.
17. The dressing device of claim 14 , further comprising the grinding tool comprising a grinding tool axis of rotation, wherein:
the profiling tool axis of rotation lies in a first plane with the grinding tool axis of rotation;
the sharpening tool axis of rotation lies in a second plane with the grinding tool axis of rotation; and
the first plane and the second plane enclose an acute angle.
18. The dressing device of claim 11 , wherein:
the rotatable sharpening tool comprises a cutting material; and
the cutting material is conundrum.
19. A method for dressing a grinding tool, comprising profiling and sharpening the grinding tool with a single dressing device, the single dressing device comprising:
a rotatable profiling tool with a first feed rate and a first advancement rate; and
a rotatable sharpening tool with a second feed rate and a second advancement rate, wherein:
the first feed rate is different than the second feed rate; or
the first advancement rate is different than the second advancement rate.
20. The method of claim 19 , wherein the rotatable profiling tool and the rotatable sharpening tool simultaneously machine the grinding tool.
21. The method of claim 20 , wherein the grinding tool is a grinding wheel comprising cubic boron nitride.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018130908.2A DE102018130908A1 (en) | 2018-12-05 | 2018-12-05 | Dressing device and method for dressing a grinding tool |
PCT/DE2019/101024 WO2020114553A1 (en) | 2018-12-05 | 2019-11-29 | Dressing device and method for dressing a grinding tool |
Publications (1)
Publication Number | Publication Date |
---|---|
US20220023994A1 true US20220023994A1 (en) | 2022-01-27 |
Family
ID=68834911
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US17/296,263 Pending US20220023994A1 (en) | 2018-12-05 | 2019-11-29 | Dressing device and method for dressing a grinding tool |
Country Status (7)
Country | Link |
---|---|
US (1) | US20220023994A1 (en) |
EP (1) | EP3890923A1 (en) |
JP (1) | JP7275271B2 (en) |
KR (1) | KR20210097106A (en) |
CN (1) | CN112912212A (en) |
DE (1) | DE102018130908A1 (en) |
WO (1) | WO2020114553A1 (en) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2162038A (en) * | 1937-05-17 | 1939-06-13 | Cincinnati Grinders Inc | Grinding machine |
US4073281A (en) * | 1975-09-29 | 1978-02-14 | Toyoda-Koki Kabushiki-Kaisha | Truing and dressing apparatus for grinding wheels |
US4993194A (en) * | 1988-02-12 | 1991-02-19 | Reishauer Ag | Grinding disks for profiling cylindrical worms |
US5044126A (en) * | 1986-10-01 | 1991-09-03 | Rotrafer S.P.A. | Tangential grinding machine |
US20120309271A1 (en) * | 2011-06-01 | 2012-12-06 | Liebherr-Verzahntechnik Gmbh | Method for Dressing a Tool |
US20160346894A1 (en) * | 2015-05-30 | 2016-12-01 | Emag Holding Gmbh | Dual-spindle grinding machine |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2482785A (en) * | 1946-12-04 | 1949-09-27 | Niles Bement Pond Co | Threaded abrasive wheel dresser |
GB1553511A (en) * | 1975-09-29 | 1979-09-26 | Asaeda T | Truing and dressing apparatus for grinding whells |
JPS5537252A (en) | 1978-09-05 | 1980-03-15 | Toyoda Mach Works Ltd | Wheel truing device of grinder |
DE3035635C2 (en) * | 1980-09-20 | 1982-08-12 | Ernst Winter & Sohn ( GmbH & Co.), 2000 Hamburg | Process for dressing grinding wheels with diamond or cubic crystalline boron nitride |
JPS61117065A (en) * | 1984-11-09 | 1986-06-04 | Toyoda Mach Works Ltd | Grindstone corrective apparatus |
JPH0295573A (en) * | 1988-09-29 | 1990-04-06 | Toyoda Mach Works Ltd | Dressing device for grindstone |
EP0739684A1 (en) * | 1993-04-26 | 1996-10-30 | Fuji Oozx Inc. | Wheel truing device |
JP2001071266A (en) * | 1999-09-03 | 2001-03-21 | Nagase Integrex Co Ltd | Setting method for rotary grinding wheel and grinding machine provided with setting dresser |
JP2001162530A (en) * | 1999-12-13 | 2001-06-19 | Micron Seimitsu Kk | Method of molding small-diameter grinding wheel for internal grinding and molding device of small-diameter grinding wheel for internal grinding |
JP2004122251A (en) * | 2002-09-30 | 2004-04-22 | Thk Co Ltd | Grinding wheel dressing method and device for grinder |
JP4647437B2 (en) * | 2005-08-29 | 2011-03-09 | 株式会社三井ハイテック | Wheel dresser device |
CN101695774A (en) * | 2009-10-21 | 2010-04-21 | 西安贝吉姆机床股份有限公司 | Grinding wheel dressing mechanism of gear form grinding machine |
DE102011102113A1 (en) * | 2011-05-20 | 2012-11-22 | Schaudt Mikrosa Gmbh | Grinding machine for grinding of external surfaces of work-piece, particularly for outer circular- or non-circular grinding, has work-piece adapter with work-piece holder, where work-piece adapter is designed to support rotational driving |
DE102012001898B3 (en) * | 2012-02-01 | 2013-04-25 | Emag Holding Gmbh | Grinding machine for grinding wave-shaped workpieces, has tailstock and trimming spindle alternatively movable to positions for supporting workpiece and for trimming wheel, respectively by rotating table around pivotal axis |
JP6197567B2 (en) * | 2013-10-16 | 2017-09-20 | 株式会社ジェイテクト | Truing method and truing device |
-
2018
- 2018-12-05 DE DE102018130908.2A patent/DE102018130908A1/en active Pending
-
2019
- 2019-11-29 KR KR1020217012974A patent/KR20210097106A/en unknown
- 2019-11-29 EP EP19817129.0A patent/EP3890923A1/en active Pending
- 2019-11-29 JP JP2021532082A patent/JP7275271B2/en active Active
- 2019-11-29 CN CN201980070080.9A patent/CN112912212A/en active Pending
- 2019-11-29 US US17/296,263 patent/US20220023994A1/en active Pending
- 2019-11-29 WO PCT/DE2019/101024 patent/WO2020114553A1/en unknown
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2162038A (en) * | 1937-05-17 | 1939-06-13 | Cincinnati Grinders Inc | Grinding machine |
US4073281A (en) * | 1975-09-29 | 1978-02-14 | Toyoda-Koki Kabushiki-Kaisha | Truing and dressing apparatus for grinding wheels |
US5044126A (en) * | 1986-10-01 | 1991-09-03 | Rotrafer S.P.A. | Tangential grinding machine |
US4993194A (en) * | 1988-02-12 | 1991-02-19 | Reishauer Ag | Grinding disks for profiling cylindrical worms |
US20120309271A1 (en) * | 2011-06-01 | 2012-12-06 | Liebherr-Verzahntechnik Gmbh | Method for Dressing a Tool |
US20160346894A1 (en) * | 2015-05-30 | 2016-12-01 | Emag Holding Gmbh | Dual-spindle grinding machine |
Also Published As
Publication number | Publication date |
---|---|
DE102018130908A1 (en) | 2020-06-10 |
EP3890923A1 (en) | 2021-10-13 |
CN112912212A (en) | 2021-06-04 |
JP2022510693A (en) | 2022-01-27 |
KR20210097106A (en) | 2021-08-06 |
JP7275271B2 (en) | 2023-05-17 |
WO2020114553A1 (en) | 2020-06-11 |
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