WO2017218318A1 - Grinding machine - Google Patents

Grinding machine Download PDF

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Publication number
WO2017218318A1
WO2017218318A1 PCT/US2017/036674 US2017036674W WO2017218318A1 WO 2017218318 A1 WO2017218318 A1 WO 2017218318A1 US 2017036674 W US2017036674 W US 2017036674W WO 2017218318 A1 WO2017218318 A1 WO 2017218318A1
Authority
WO
WIPO (PCT)
Prior art keywords
workpiece
grinding
grinding machine
spindle
grinding wheel
Prior art date
Application number
PCT/US2017/036674
Other languages
French (fr)
Inventor
Walter E.G. KECK
Joerg WILMS
Ralf Egger
Original Assignee
3M Innovative Properties Company
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 3M Innovative Properties Company filed Critical 3M Innovative Properties Company
Publication of WO2017218318A1 publication Critical patent/WO2017218318A1/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24DTOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D7/00Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor
    • B24D7/02Wheels in one piece
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B27/00Other grinding machines or devices
    • B24B27/0023Other grinding machines or devices grinding machines with a plurality of working posts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B3/00Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
    • B24B3/34Sharpening 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24DTOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D7/00Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor
    • B24D7/18Wheels of special form

Definitions

  • the invention relates to a grinding machine for grinding peripheries, clearance angles and protective chamfers in workpieces, preferably workpieces made of steel, hard metal, ceramics, cermet, CBN and PCD, wherein the material processing occurs by means of a grinding wheel preferably formed approximately bowl-shaped, and wherein during the machining the workpiece is held in a workpiece spindle, which is advantageously designed as a ram clamping device, wherein the grinding machine comprises at least four axes, of which at least two axes are designed as rotary axes and at least two axes as linear axes. In this case, the axes are usually in each case at least approximately arranged orthogonally to at least one other axis. From practice, such grinding machines are known in many different embodiments, which are used for the grinding processing of corresponding workpieces.
  • the object of the invention is to avoid the aforementioned disadvantages and to provide a grinding machine that allows an improved use of the grinding wheel.
  • a grinding machine in that a further independently movable workpiece spindle is provided for the synchronous or asynchronous machining of at least two workpieces by the grinding wheel, whereby the workpiece spindles with respect to the grinding spindle are provided in different relative positions such that the workpieces of the two workpiece spindles can be machined simultaneously without collisions by the grinding wheel.
  • a plurality of workpieces can be machined simultaneously with a single grinding wheel on the different workpiece spindles.
  • the workpieces can be different or the same, and the machining operations can be different or the same.
  • only one grinding wheel and grinding spindle is required, and consequently only one dressing unit and a corresponding control unit, as well as one handling or robot system, if necessary, is required. This results in significantly improved productivity with only minor additional costs.
  • the grinding spindle can be arranged in a stationary manner and advantageously mounted rigidly, and the necessary relative movements between the grinding wheel and the respective workpiece are realized by a displacement of the corresponding workpiece spindle.
  • the grinding wheel can be designed as a face grinding wheel or a peripheral grinding wheel or a combination thereof, so that various grinding tasks can be handled without problems.
  • At least two workpiece spindles can be provided, each of which is provided on a separate rotary table, wherein each of these rotary tables is arranged in each case on a separate displacement device, which is advantageously designed as a linear slide.
  • a plurality of linear slides can be arranged on a common linear guide.
  • the rotary table is understood as a rotary displacement device whose axis of rotation is oriented orthogonally to the axis of rotation of the grinding wheel and orthogonally to the displacement device of the respective guide slide.
  • at least one rotary table and/or at least one linear slide can be preferably CNC-controlled, with a common control or else a separate control being provided.
  • a rotary table can, for example, be controllable in a range of approximately -100° to approximately +45°, and another rotary table can be controllable, for example, in a range of approximately -45° to approximately +100°.
  • At least two displacement devices can be designed as linear slides, which in each case are arranged on separate linear guides or on a common linear guide.
  • the linear slides can in each case be arranged on a linear guide which are in each case provided on a displacement device which are likewise designed as (additional) linear slides and which are in each case arranged on separate (additional) linear guides or on a common (additional) linear guide.
  • two workpiece spindles can be provided oriented in opposite directions, wherein the two workpiece spindles are completely or at least substantially designed mirror-inverted and each is arranged facing away from each other with their larger projection in outward direction.
  • a first workpiece spindle can thus, for example, be provided in the "3 o'clock” position, whereby its larger drive side is provided pointing towards the right.
  • a second workpiece spindle can be provided at the "9 o'clock” position, wherein its larger drive side is provided pointing to the left.
  • simultaneous grinding at the "3 o'clock” and “9 o'clock” positions is possible without collisions. If more than two workpiece spindles are provided, these can be distributed at will.
  • a third workpiece spindle can, for example, be arranged at the "6 o'clock" position.
  • At least two workpiece spindles can be designed at least partially, preferably completely identical, and/or at least two workpiece spindles can be at least partially, preferably completely, mirror-inverted. This makes it possible to use standard components, which reduces costs and reduces the storage time for repairs.
  • two workpiece spindles can each be equipped with different clamping systems that enable various machining operations of also identical workpieces, so that different working steps can be carried out at the same time.
  • a machining of the edge of a workpiece on the first workpiece spindle and a machining of the chip breaker can take place in a perpendicular clamping on the second workpiece spindle.
  • at least one workpiece spindle can be equipped with a measuring system, and both workpiece spindles can preferably be equipped with separate measuring systems.
  • At least two synchronously or asynchronously controllable systems can be assigned for trueing and/or dressing the grinding wheel so that the corresponding machining of the grinding wheel are possible independently of one another and without corresponding auxiliary process times.
  • at least one handling or robot system can be provided for loading and/or unloading at least one workpiece spindle, preferably for loading and/or unloading at least two or all workpiece spindles, so that loading or unloading can take place from the one spindle, while the other workpiece spindle is used for grinding a workpiece.
  • At least one workpiece spindle can be dismantled and exchanged against another device for deviating mechanical machining methods.
  • at least one workpiece spindle cannot be dismantled and thus cannot be exchanged with another device for deviating mechanical machining methods.
  • a third CNC-controlled axis of rotation can also be mounted between the workpiece spindle and the rotary table, which can preferably be oriented orthogonally to the axis of rotation of the rotary table and to the axis of rotation of the workpiece spindle.
  • the workpiece spindles can be moved with their corresponding axes in dependence on one another.
  • only one workpiece spindle can be equipped with a measuring system and can serve as a "master” for another workpiece spindle designed as "slave.”
  • the sole figure shows a grinding machine 1 for grinding workpieces 2, wherein the material processing takes place by means of an approximately circular bowl-shaped grinding wheel 3.
  • two workpiece spindles 4 are provided which can be moved independently of one another.
  • the workpiece spindles 4 are provided in different relative positions with respect to the grinding wheel 3 (and the grinding spindle not shown in the figure) in such a way that the workpieces 2 of the two workpiece spindles 4 can be machined simultaneously by the grinding wheel 3 without collisions.
  • the grinding wheel 3 (and the grinding spindle, not shown in the figure) is arranged stationary and rigidly mounted.
  • the relative movements between the grinding wheel 3 and the respective workpiece 2 required for machining the workpiece 2 are realized by a displacement of the corresponding workpiece spindle 4.
  • the two workpiece spindles 4 are each provided on a separate rotary table 5, whereby each of these rotary tables 5 are arranged in each case on a separate displacement device designed as a linear slide 6.
  • the two linear slides 6 are each arranged on a linear guide 8, which is provided in each case on a displacement device, also designed as a linear slide 7.
  • the orientation of the linear guides 8 and thus the direction of displacement of the linear slides 6 is in each case aligned parallel to the axis of rotation of the grinding wheel 3.
  • the two linear slides 7 are in turn arranged on a common linear guide 9.
  • the orientation of the linear guide 9 and thus of the displacement direction of the linear slides 7 is oriented orthogonally to the orientation of the displacement direction of the linear slides 6.
  • the respective axis of rotation of the rotary tables 5 is in each case aligned orthogonally to the axis of rotation of the grinding wheel 3 and orthogonally to the direction of displacement of the respective linear slide 6 as well as orthogonal to the direction of displacement of the respective linear slide 7.
  • the rotary table 5 shown in the figure on the left can be controlled, for example, in a range of approximately -100° to approximately +45°
  • the rotary table 5 shown in the figure on the right can be controlled, for example, in a range of approximately -45° to approximately +100°.
  • the two workpiece spindles 4 are provided to be oriented in opposite directions and are designed differently.
  • the right-hand workpiece spindle 4 is arranged with its larger projection facing outwards, i.e. facing to the right.
  • this workpiece spindle 4 has a third CNC-controlled axis of rotation 10, which is mounted between the workpiece spindle 4 and the rotary table 5.
  • the axis of rotation 10 is thereby oriented both orthogonally to the axis of rotation of the rotary table 5 and also orthogonally to the axis of rotation of the workpiece spindle 4.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)

Abstract

The invention relates to a grinding machine for grinding peripheries, clearance angles and protective chamfers in workpieces, preferably workpieces made of steel, hard metal, ceramics, cermet, CBN and PCD, wherein the material processing occurs by means of a grinding wheel preferably formed approximately bowl-shaped, and during the machining the workpiece is held in a workpiece spindle, which is advantageously designed as a ram clamping device. In order to specify a grinding machine with which an improved use of the grinding wheel is made possible, a further, independently movable workpiece spindle should be provided for the synchronous or asynchronous machining of at least two workpieces by the grinding wheel, whereby the workpiece spindles with respect to the grinding spindle are provided in different relative positions such that the workpieces of the two workpiece spindles can be machined simultaneously without collisions by the grinding wheel.

Description

GRINDING MACHINE
The invention relates to a grinding machine for grinding peripheries, clearance angles and protective chamfers in workpieces, preferably workpieces made of steel, hard metal, ceramics, cermet, CBN and PCD, wherein the material processing occurs by means of a grinding wheel preferably formed approximately bowl-shaped, and wherein during the machining the workpiece is held in a workpiece spindle, which is advantageously designed as a ram clamping device, wherein the grinding machine comprises at least four axes, of which at least two axes are designed as rotary axes and at least two axes as linear axes. In this case, the axes are usually in each case at least approximately arranged orthogonally to at least one other axis. From practice, such grinding machines are known in many different embodiments, which are used for the grinding processing of corresponding workpieces.
The disadvantage of this is that only one workpiece can be machined simultaneously, which limits the efficiency of the grinding machine. In addition, the efficiency is also limited by the auxiliary process times due to the removal of a first workpiece after completed machining and by the attachment of a workpiece subsequently to be machined.
The object of the invention is to avoid the aforementioned disadvantages and to provide a grinding machine that allows an improved use of the grinding wheel.
This object is achieved with a grinding machine according to the invention in that a further independently movable workpiece spindle is provided for the synchronous or asynchronous machining of at least two workpieces by the grinding wheel, whereby the workpiece spindles with respect to the grinding spindle are provided in different relative positions such that the workpieces of the two workpiece spindles can be machined simultaneously without collisions by the grinding wheel. As a result, a plurality of workpieces can be machined simultaneously with a single grinding wheel on the different workpiece spindles. The workpieces can be different or the same, and the machining operations can be different or the same. Thus, only one grinding wheel and grinding spindle is required, and consequently only one dressing unit and a corresponding control unit, as well as one handling or robot system, if necessary, is required. This results in significantly improved productivity with only minor additional costs.
According to the invention, the grinding spindle can be arranged in a stationary manner and advantageously mounted rigidly, and the necessary relative movements between the grinding wheel and the respective workpiece are realized by a displacement of the corresponding workpiece spindle.
Preferably, the grinding wheel can be designed as a face grinding wheel or a peripheral grinding wheel or a combination thereof, so that various grinding tasks can be handled without problems.
Advantageously, at least two workpiece spindles can be provided, each of which is provided on a separate rotary table, wherein each of these rotary tables is arranged in each case on a separate displacement device, which is advantageously designed as a linear slide. In this case, a plurality of linear slides can be arranged on a common linear guide. In the present case, the rotary table is understood as a rotary displacement device whose axis of rotation is oriented orthogonally to the axis of rotation of the grinding wheel and orthogonally to the displacement device of the respective guide slide. Thus, at least one rotary table and/or at least one linear slide can be preferably CNC-controlled, with a common control or else a separate control being provided. A rotary table can, for example, be controllable in a range of approximately -100° to approximately +45°, and another rotary table can be controllable, for example, in a range of approximately -45° to approximately +100°.
Preferably at least two displacement devices can be designed as linear slides, which in each case are arranged on separate linear guides or on a common linear guide. Preferably, the linear slides can in each case be arranged on a linear guide which are in each case provided on a displacement device which are likewise designed as (additional) linear slides and which are in each case arranged on separate (additional) linear guides or on a common (additional) linear guide. In a preferred embodiment according to the invention, two workpiece spindles can be provided oriented in opposite directions, wherein the two workpiece spindles are completely or at least substantially designed mirror-inverted and each is arranged facing away from each other with their larger projection in outward direction. Thus, looking at the grinding wheel from the front, a first workpiece spindle can thus, for example, be provided in the "3 o'clock" position, whereby its larger drive side is provided pointing towards the right. A second workpiece spindle, on the other hand, can be provided at the "9 o'clock" position, wherein its larger drive side is provided pointing to the left. Thus simultaneous grinding at the "3 o'clock" and "9 o'clock" positions is possible without collisions. If more than two workpiece spindles are provided, these can be distributed at will. A third workpiece spindle can, for example, be arranged at the "6 o'clock" position.
According to the invention, at least two workpiece spindles can be designed at least partially, preferably completely identical, and/or at least two workpiece spindles can be at least partially, preferably completely, mirror-inverted. This makes it possible to use standard components, which reduces costs and reduces the storage time for repairs.
Furthermore, two workpiece spindles can each be equipped with different clamping systems that enable various machining operations of also identical workpieces, so that different working steps can be carried out at the same time. Thus, for example, a machining of the edge of a workpiece on the first workpiece spindle and a machining of the chip breaker can take place in a perpendicular clamping on the second workpiece spindle. According to the invention, at least one workpiece spindle can be equipped with a measuring system, and both workpiece spindles can preferably be equipped with separate measuring systems. Thus, independent centering and alignment of the workpieces is possible and independent compensation of thermal deviations and disk abrasion for each workpiece spindle to which a separate measuring system is assigned can be carried out.
Advantageously at least two synchronously or asynchronously controllable systems can be assigned for trueing and/or dressing the grinding wheel so that the corresponding machining of the grinding wheel are possible independently of one another and without corresponding auxiliary process times. Furthermore, at least one handling or robot system can be provided for loading and/or unloading at least one workpiece spindle, preferably for loading and/or unloading at least two or all workpiece spindles, so that loading or unloading can take place from the one spindle, while the other workpiece spindle is used for grinding a workpiece.
Preferably, at least one workpiece spindle can be dismantled and exchanged against another device for deviating mechanical machining methods. Advantageously at least one workpiece spindle cannot be dismantled and thus cannot be exchanged with another device for deviating mechanical machining methods.
With at least one workpiece spindle, a third CNC-controlled axis of rotation can also be mounted between the workpiece spindle and the rotary table, which can preferably be oriented orthogonally to the axis of rotation of the rotary table and to the axis of rotation of the workpiece spindle.
Preferably, the workpiece spindles can be moved with their corresponding axes in dependence on one another. Thus, for example, only one workpiece spindle can be equipped with a measuring system and can serve as a "master" for another workpiece spindle designed as "slave."
In the following, an embodiment of the invention shown in the drawing is explained. The sole figure shows a grinding machine 1 for grinding workpieces 2, wherein the material processing takes place by means of an approximately circular bowl-shaped grinding wheel 3.
For the synchronous or asynchronous machining of at least two workpieces 2 by the grinding wheel 3, two workpiece spindles 4 are provided which can be moved independently of one another. The workpiece spindles 4 are provided in different relative positions with respect to the grinding wheel 3 (and the grinding spindle not shown in the figure) in such a way that the workpieces 2 of the two workpiece spindles 4 can be machined simultaneously by the grinding wheel 3 without collisions.
The grinding wheel 3 (and the grinding spindle, not shown in the figure) is arranged stationary and rigidly mounted. The relative movements between the grinding wheel 3 and the respective workpiece 2 required for machining the workpiece 2 are realized by a displacement of the corresponding workpiece spindle 4.
The two workpiece spindles 4 are each provided on a separate rotary table 5, whereby each of these rotary tables 5 are arranged in each case on a separate displacement device designed as a linear slide 6.
For their part, the two linear slides 6 are each arranged on a linear guide 8, which is provided in each case on a displacement device, also designed as a linear slide 7. The orientation of the linear guides 8 and thus the direction of displacement of the linear slides 6 is in each case aligned parallel to the axis of rotation of the grinding wheel 3.
The two linear slides 7 are in turn arranged on a common linear guide 9. The orientation of the linear guide 9 and thus of the displacement direction of the linear slides 7 is oriented orthogonally to the orientation of the displacement direction of the linear slides 6.
The respective axis of rotation of the rotary tables 5 is in each case aligned orthogonally to the axis of rotation of the grinding wheel 3 and orthogonally to the direction of displacement of the respective linear slide 6 as well as orthogonal to the direction of displacement of the respective linear slide 7. The rotary table 5 shown in the figure on the left can be controlled, for example, in a range of approximately -100° to approximately +45°, and the rotary table 5 shown in the figure on the right can be controlled, for example, in a range of approximately -45° to approximately +100°. The two workpiece spindles 4 are provided to be oriented in opposite directions and are designed differently. The right-hand workpiece spindle 4 is arranged with its larger projection facing outwards, i.e. facing to the right.
Thus, this workpiece spindle 4 has a third CNC-controlled axis of rotation 10, which is mounted between the workpiece spindle 4 and the rotary table 5. The axis of rotation 10 is thereby oriented both orthogonally to the axis of rotation of the rotary table 5 and also orthogonally to the axis of rotation of the workpiece spindle 4.

Claims

Claims
1. A grinding machine (1 ) for grinding peripheries, clearance angles and protective chamfers for workpieces (2), preferably workpieces (2) made of steel, hard metal, ceramic, cermet, CBN and PCD, wherein the material processing occurs by means of a grinding wheel (3) preferably formed approximately bowl-shaped, and during the machining the workpiece (2) is held in a workpiece spindle (4), which is advantageously designed as a ram clamping device, wherein the grinding machine (1 ) comprises at least four axes, of which at least two axes are designed as axes of rotation and at least two axes as linear axes, characterized in that for the synchronous or asynchronous machining of at least two workpieces (2) by the grinding wheel (3) at least one additional, independently movable workpiece spindle (4) is provided, wherein the workpiece spindles (4) are provided at different relative positions relative to the grinding spindle in such a way that the workpieces (2) of the two workpiece spindles (4) can be machined simultaneously without collisions by the grinding wheel (3).
2. The grinding machine (1 ) according to the preceding claim, characterized in that the grinding spindle is arranged in a stationary manner and is advantageously mounted rigidly.
3. The grinding machine (1 ) according to any of the preceding claims, characterized in that the grinding wheel (3) is designed as a face grinding wheel or a peripheral grinding wheel or a combination thereof.
4. The grinding machine (1 ) according to any of the preceding claims, characterized in that at least two workpiece spindles (4) are each provided on a separate rotary table (5), wherein each of said rotary tables (5), on their own, is arranged on a separate displacement device advantageously designed as a linear slide (6).
5. The grinding machine (1 ) according to the preceding claim, characterized in that at least two displacement devices are provided as a linear slides (6), which are arranged on each separate linear guides (8) or on a common linear guide (8), wherein preferably the linear slides (6) are arranged in turn in each case on a linear guide (8) which is provided each on displacement device also designed as linear slides (7), which are arranged on each separate linear guides (9), or on a common linear guide (9).
6. The grinding machine (1 ) according to the preceding claim, characterized in that two workpiece spindles (4) are provided arranged in opposite directions, wherein the two workpiece spindles (4) are completely or at least substantially designed mirror- inverted and each is arranged facing away from each other with their larger projection in outward direction.
7. The grinding machine (1 ) according to any of the preceding claims, characterized in that at least two workpiece spindles (4) are designed at least partially, preferably completely identical, and/or are designed at least partially, preferably completely, mirror-inverted.
8. The grinding machine (1 ) according to any of the preceding claims, characterized in that two workpiece spindles (4) are each equipped with different clamping systems allowing differing machining of also identical workpieces (2).
9. The grinding machine (1 ) according to any of the preceding claims, characterized in that at least one workpiece spindle (4) is equipped with a measuring system, preferably both workpiece spindles (4) are equipped with separate measuring systems.
10. The grinding machine (1 ) according to any of the preceding claims, characterized in that at least two synchronously or asynchronously controllable systems for trueing and/or dressing are associated with the grinding wheel (3).
1 1 . The grinding machine (1 ) according to any of the preceding claims, characterized in that at least one handling or robot system for loading and/or unloading at least one workpiece spindle (4), preferably for loading and/or unloading at least two or all workpiece spindles (4) is provided.
12. The grinding machine (1 ) according to any of the preceding claims, characterized in that at least one workpiece spindle (4) can be dismantled and exchanged against another device for deviating mechanical machining methods.
13. The grinding machine (1 ) according to any of the preceding claims, characterized in that at least one workpiece spindle (4) a third CNC-controlled axis of rotation (10) is mounted between the workpiece spindle (4) and the rotary table (5), which is arranged preferably orthogonal to the axis of rotation of the workpiece spindle of the rotary table (5) and the axis of rotation of the workpiece spindle (4).
14. The grinding machine (1 ) according to any of the preceding claims, characterized in that the workpiece spindles (4) can be moved with their respective axes depending on one another.
PCT/US2017/036674 2016-06-15 2017-06-09 Grinding machine WO2017218318A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP16174557.5A EP3257629A1 (en) 2016-06-15 2016-06-15 Grinding machine
EP16174557.5 2016-06-15

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Publication Number Publication Date
WO2017218318A1 true WO2017218318A1 (en) 2017-12-21

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109732443A (en) * 2019-03-06 2019-05-10 广东皓明陶瓷科技有限公司 The green body polishing device and green body grinding method of ceramic bowl automatic moulding production line
JP7474776B2 (en) 2019-02-26 2024-04-25 カップ ニレス ゲーエムベーハー アンド カンパニー ケージー Method for grinding or polishing a gear or a workpiece with a gear-like profile on a grinding or polishing machine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021041525A (en) * 2019-09-11 2021-03-18 アガトン・アクチエンゲゼルシャフト・マシーネンファブリーク Modular clamp device

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Publication number Priority date Publication date Assignee Title
US1991724A (en) * 1931-10-26 1935-02-19 Cincinnati Grinders Inc Grinding machine
US4848039A (en) * 1985-02-15 1989-07-18 Kummer Kenneth L Method and apparatus for grinding multiple workpieces
DE4301214A1 (en) * 1992-02-10 1993-08-12 Agathon Ag Maschf Grinding machine for grinding reversible cutting inserts - has grinding wheel with two concentric abrasive surfaces offset from each other in axial direction
DE19528404A1 (en) * 1995-08-02 1997-02-06 Spinner Werkzeugmaschinenfabri Dual workpiece machine tool with simultaneous swarf removal - has twin rotating workpiece holder and revolving tool holder rotating orthogonal to workpiece holder's axes
EP1452269A1 (en) * 2003-02-25 2004-09-01 Bacci Paolino Di Bacci Agostino Toolhead for machine tools or work centers and machine comprising said head
EP1500466A1 (en) * 2003-07-21 2005-01-26 WENDT GmbH Device for alternately machining a workpiece
EP2058071A1 (en) * 2006-08-04 2009-05-13 Citizen Holdings Co., Ltd. Combined processing lathe and its tool post
EP2123392A1 (en) * 2008-05-23 2009-11-25 Paolino Bacci S.r.l. Rotary multi-spindle operating head and machine tool comprising said head
DE202014104881U1 (en) * 2014-10-15 2014-11-13 Klingelnberg Ag Grinding machine with a grinding tool for simultaneous generating grinding of two workpieces

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1991724A (en) * 1931-10-26 1935-02-19 Cincinnati Grinders Inc Grinding machine
US4848039A (en) * 1985-02-15 1989-07-18 Kummer Kenneth L Method and apparatus for grinding multiple workpieces
DE4301214A1 (en) * 1992-02-10 1993-08-12 Agathon Ag Maschf Grinding machine for grinding reversible cutting inserts - has grinding wheel with two concentric abrasive surfaces offset from each other in axial direction
DE19528404A1 (en) * 1995-08-02 1997-02-06 Spinner Werkzeugmaschinenfabri Dual workpiece machine tool with simultaneous swarf removal - has twin rotating workpiece holder and revolving tool holder rotating orthogonal to workpiece holder's axes
EP1452269A1 (en) * 2003-02-25 2004-09-01 Bacci Paolino Di Bacci Agostino Toolhead for machine tools or work centers and machine comprising said head
EP1500466A1 (en) * 2003-07-21 2005-01-26 WENDT GmbH Device for alternately machining a workpiece
EP2058071A1 (en) * 2006-08-04 2009-05-13 Citizen Holdings Co., Ltd. Combined processing lathe and its tool post
EP2123392A1 (en) * 2008-05-23 2009-11-25 Paolino Bacci S.r.l. Rotary multi-spindle operating head and machine tool comprising said head
DE202014104881U1 (en) * 2014-10-15 2014-11-13 Klingelnberg Ag Grinding machine with a grinding tool for simultaneous generating grinding of two workpieces

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7474776B2 (en) 2019-02-26 2024-04-25 カップ ニレス ゲーエムベーハー アンド カンパニー ケージー Method for grinding or polishing a gear or a workpiece with a gear-like profile on a grinding or polishing machine
CN109732443A (en) * 2019-03-06 2019-05-10 广东皓明陶瓷科技有限公司 The green body polishing device and green body grinding method of ceramic bowl automatic moulding production line

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