EP1330336A1 - Spitzenlose rundschleifmaschine - Google Patents
Spitzenlose rundschleifmaschineInfo
- Publication number
- EP1330336A1 EP1330336A1 EP01962522A EP01962522A EP1330336A1 EP 1330336 A1 EP1330336 A1 EP 1330336A1 EP 01962522 A EP01962522 A EP 01962522A EP 01962522 A EP01962522 A EP 01962522A EP 1330336 A1 EP1330336 A1 EP 1330336A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- grinding
- wheel
- axis
- headstock
- slide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000227 grinding Methods 0.000 title claims abstract description 132
- 230000001105 regulatory effect Effects 0.000 claims abstract description 54
- 239000010432 diamond Substances 0.000 claims description 5
- 229910003460 diamond Inorganic materials 0.000 claims description 4
- 239000002826 coolant Substances 0.000 claims description 2
- 239000010438 granite Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 description 6
- 238000010276 construction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000009420 retrofitting Methods 0.000 description 1
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
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/18—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centreless means for supporting, guiding, floating or rotating work
- B24B5/307—Means for supporting work
-
- 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
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
-
- 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
Definitions
- the invention relates to a centerless cylindrical grinding machine for the through and plunge grinding of any work piece according to the preamble of claims 1 and 9.
- through and plunge grinding other terms such as continuous or longitudinal grinding and cross grinding are used in the literature.
- Centerless cylindrical grinding machines differ from the other cylindrical grinding processes in that the workpiece to be machined is not clamped in the machine or a device, but lies loosely on a support (workpiece support). Centerless grinding enables higher manufacturing accuracy and higher productivity compared to other cylindrical grinding processes.
- EP-0 674 970 describes a centerless cylindrical grinding machine which is used in particular for the production of valve rods and the like.
- the machine is operated in a continuous grinding process because the regulating wheel is slightly inclined in relation to the grinding wheel.
- the machine has a fixed workpiece support in the form of a plate with an angled support surface as well as motor-adjustable stops arranged on both sides for positioning the workpiece.
- the stops can be positioned in a direction parallel to the axis of rotation of the grinding wheel.
- the workpiece support, the grinding headstock and the control headstock are not located within a safety housing. Since the workpiece support is arranged in a fixed manner, there is also no possibility of moving the workpiece support out of the danger area of the grinding and regulating wheel for the purpose of operation.
- GB-2 206 299 describes a centerless one
- Cylindrical grinding machine in which two workpiece supports are arranged on a 'shuttle', which in turn slides on a sled run.
- the slide is not driven, but can be shifted to one side or the other for loading or unloading the workpieces so that at least one of the workpiece supports comes to lie completely outside the processing area between the grinding wheel and the regulating wheel.
- the slide with the workpiece support only serves to hold the workpieces, does not carry any dressing devices and is also not designed to accommodate dressing devices.
- the grinding and regulating wheels are arranged in a work station and there are also several partial regulating wheels. The partial regulating disks also always appear to be used at the same time.
- DE-1 994 0687 describes in FIG. 8 a grinding machine for centerless grinding of workpieces with a slide, on which a workpiece support is located and on which dressing tools are also fastened.
- the sled is driven and (again with the aid of the axis directions mentioned above) movable in the Y direction, while the grinding wheel and the regulating wheel can be moved in the X s and Xu direction.
- This arrangement reduces the number of driven positioning axes without losing any functionality compared to 4-axis or even 6-axis driven machines.
- the axis of rotation of the grinding wheel is set at an angle to a longitudinal central axis running in the Y direction.
- the workpiece support is moved into a position next to the grinding wheel and the regulating wheel in the event of a dressing process, but it remains in the immediate vicinity of the wheel and there are no separating or safety devices that the operating personnel can reliably predict in the event of a workpiece change Protect unintentional contact with the grinding wheel or regulating wheel.
- the workpiece support can therefore not be completely removed from the danger area of the grinding wheel and regulating wheel for the purpose of operation.
- the dressing tools attached to the slide can only be used internally on this machine (internally, here means that they are used in the area of the workpiece support, i.e. essentially between the grinding wheel and the regulating wheel).
- Accessibility when changing the dressing tools essentially has the same disadvantages as when changing workpieces.
- Newer machines often have a full housing, which ensures a high level of safety.
- One of the manufacturers is, for example, the company SCHAUDT MIKROSA BWF in Leipzig, with the machine type KRONOS S
- the company DOUGLAS CURTIS LTD in Colchester, Essex is the manufacturer of another centerless cylindrical grinder of the newer type of the type CURTIS UCG [Universal Centerless Grinder].
- Information on both companies and machine types can be found on the INTERNET.
- the movable machine parts are always arranged completely within a full housing.
- the object of the invention is to provide a centerless cylindrical grinding machine for the through and plunge grinding of any work piece, which manages with a small number of driven positioning axes and in the manipulations in the area of
- Workpiece support such as placing a new workpiece or placing or changing parts to carry out a dressing process, can be carried out safely by the operating personnel.
- the means for dressing the grinding wheel and the regulating wheel should be able to be used as flexibly as possible.
- the solution is that in a generic machine with driven positioning axes X s (or U s ) and X R for adjusting the grinding headstock and the control headstock and a further driven positioning axis Y w running at right angles to the axis X R for a slide a workpiece support on a sled run, the sled on the sled run can be moved into a position lying outside a safety housing and the sled can be optionally equipped with an internal or an external dressing device.
- a basic advantage of this solution is that centerless cylindrical grinding machines, due to the smaller number of driven positioning axes (three!) Compared to conventional machines of this type with up to six ) t ⁇ 3 ho P 1 - 1
- Fig. 1 a schematic drawing of the arrangement of the
- Fig. La a schematic drawing of the arrangement of the
- FIG. 3 a perspective view of the centerless cylindrical grinding machine according to FIG. 2 with closed safety housing and the slide with the workpiece support in the safety room,
- FIG. 5 shows a perspective view of the centerless cylindrical grinding machine according to FIG. 2 with the safety housing closed and the slide with the workpiece support in the loading position outside the security room,
- Safety housing and a schematic representation in the position when dressing the grinding wheel
- FIG. 7 a perspective view of the centerless cylindrical grinding machine according to FIG. 2 without the safety housing and a schematic illustration in the position when dressing the regulating wheel,
- FIG. 8b a representation according to FIG. 8a in preparation for a second grinding operation.
- Figures 1, la and 2 show the basic arrangement of the moving parts of a centerless cylindrical grinding machine according to the invention. Figures 1 and la only illustrate the difference when using internal or external means for dressing. Fig. 2 is a perspective view.
- a grinding wheel 1 on a grinding headstock 2 is movable in a first driven positioning axis X s .
- a regulating wheel 3 on a regulating headstock 4 can be moved in a second driven positioning axis X R.
- the positioning axis X s runs parallel to
- Positioning axis X R Positioning axis X R.
- the positioning axes X s and X R are arranged at right angles to the respective axes of rotation 5, 6 of the grinding wheel 1 and the regulating wheel 3.
- a workpiece support 7 for a workpiece 8 is arranged between the grinding headstock 2 and the control headstock 4.
- the workpiece support 7 and a dressing device 9, which consists of a first dressing tool 10 for the grinding wheel 1 and a second dressing tool 11 for the regulating wheel 3, are located on a slide 12 which is in a slide track 13 at right angles to the axes X s and X R in a driven positioning axis Y w is movable.
- the workpiece support 7 and the dressing device 9 can be moved out of the danger zone of the grinding wheel 1 and the regulating wheel 3 by means of the slide 12.
- the dressing device 9 can be equipped with internally acting dressing tools 10, 11 according to FIG. 1 or with externally acting dressing tools 10, 11 according to FIG. 2 also shows a dressing device 9 with internal dressing tools. With suitable structural measures (brackets and the like, which are known to the person skilled in the art and are therefore not explained in more detail here), different dressing tools 10, 11 for dressing the grinding wheel 1 and regulating wheel 3 can be attached to the dressing device 9.
- a coolant supply can also be attached to the carriage 12 (not shown).
- the grinding headstock 2, the control headstock 4 and the slide 12 on the slide track 13 are preferably constructed on a machine bed 14 made of thermostable natural granite.
- FIG 3 shows a perspective view of the centerless cylindrical grinding machine with a closed safety housing 15 and with the slide 12 inside a security room, which is formed by the security housing 15.
- the slide is here in a working position, but it can be seen that the slide 12 can be moved on the slide track 13 into a position lying outside the safety housing 15.
- FIG. 4 shows essentially the same view as FIG. 3, but with the safety housing 15 folded up.
- FIG. 5 shows a perspective view of the centerless cylindrical grinding machine with closed safety housing 15 and the slide 12 with the workpiece support 7, the workpiece 8 and the dressing device 9 in the “loading position” outside the safety room.
- the "loading" with a new workpiece 8 'or the “unloading" of a machined workpiece 8' ' is indicated schematically.
- FIGS. 6 and 7 serve to schematically illustrate the positions when dressing grinding wheel 1 (FIG. 6) or when dressing regulating wheel 3 (FIG. 7). For better illustration, the illustration is made without the security housing 15.
- the first dressing tool 10 for the grinding wheel is in contact with the grinding wheel 1.
- any contours on the grinding wheel 1 can be defined or dressed by adjusting the dressing tool 10 in the Y direction and, if necessary, by simultaneously adjusting the grinding wheel 1 in the X s direction.
- the second dressing tool 11 for the regulating wheel is in contact with the regulating wheel 3.
- any contours can be defined or dressed on the regulating wheel 3 in the X R direction.
- the dressing device 9 can optionally (as required) be equipped with a wide variety of dressing tools for dressing the grinding wheel 1 or the regulating wheel 3. This can be dressing diamonds, diamond form rollers, diamond profile rollers, tiles or similar ones
- the dressing device 9 is provided for easy replacement and optional fitting with such dressing devices.
- the dressing devices mentioned can be used as required both as a first dressing tool 10 for the grinding wheel 1 and as a second dressing tool 11 for the regulating wheel 3.
- the drive for the positioning axis Y w of the slide 12 can be shaped in such a way that oscillating movements can be generated. With oscillating movements of the workpiece 8 during the grinding process (only during plunge grinding), improved roughness values of the ground surfaces can be achieved.
- Moving grinding wheel 1 in the X s direction can be a or several shoulders are ground on the workpiece 8. All the drives or at least the drives for the positioning axes X s and Y w of the centerless cylindrical grinding machine according to the invention are preferably designed in such a way that simultaneous movements and sequences of movements can take place in the X and Y directions.
- the grinding wheel can
- the axis of rotation 5 of the grinding wheel 1 can be perpendicular to
- Positioning axis U s for the grinding headstock but she doesn't have to.
- the positioning axis X R is arranged at right angles to the axis of rotation (6) of the regulating wheel (3) and the positioning axis Y w is at right angles to the positioning axis X R.
- both dressing device 9 with internally acting dressing tools 10, 11 and dressing device 9 with externally acting dressing tools 10, 11 can in principle be used.
- FIGS. 8a and 8b show a grinding wheel 1 consisting of two partial grinding wheels 1A and IB arranged one behind the other on the axis of rotation 5 and a regulating wheel 2 consisting of two one behind the other on the Roatationsachse 6 arranged partial control discs 3A and 3B.
- 8a shows the slide 12 with the workpiece support 7 in a first position at the level of the partial grinding wheel 1A and the partial regulating wheel 3A, which corresponds to a ready position for a first grinding operation.
- 8b shows the slide 12 with the workpiece support 7 in a second position at the level of the partial grinding wheel IB and the partial control wheel 3B, which corresponds to a ready position for a second grinding operation.
- the grinding wheel and the regulating wheel can (as shown) be joined together as several dividing wheels arranged separately from one another. However, it is also possible to profile full panes by different partial sections lying next to one another in such a way that the same goal is achieved.
- first dressing tool for grinding wheel
- second dressing tool for regulating wheel
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
- Grinding-Machine Dressing And Accessory Apparatuses (AREA)
- Polishing Bodies And Polishing Tools (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH02157/00A CH694940A5 (de) | 2000-11-03 | 2000-11-03 | Spitzenlose Rundschleifmaschine. |
| CH215700 | 2000-11-03 | ||
| PCT/CH2001/000528 WO2002036305A1 (de) | 2000-11-03 | 2001-09-03 | Spitzenlose rundschleifmaschine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1330336A1 true EP1330336A1 (de) | 2003-07-30 |
| EP1330336B1 EP1330336B1 (de) | 2005-11-23 |
Family
ID=4567741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP01962522A Expired - Lifetime EP1330336B1 (de) | 2000-11-03 | 2001-09-03 | Spitzenlose rundschleifmaschine |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US7223159B2 (de) |
| EP (1) | EP1330336B1 (de) |
| AT (1) | ATE310607T1 (de) |
| AU (1) | AU2001283750A1 (de) |
| CH (1) | CH694940A5 (de) |
| DE (1) | DE50108202D1 (de) |
| ES (1) | ES2254465T3 (de) |
| WO (1) | WO2002036305A1 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111958342A (zh) * | 2019-05-20 | 2020-11-20 | 乌尔斯·楚丁 | 无心外圆磨床 |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATE530295T1 (de) * | 2007-02-06 | 2011-11-15 | Urs Tschudin | Schleifmaschine zum schleifen von werkstücken zwischen spitzen wie auch zum spitzenlosen schleifen sowie schleifverfahren |
| CA2717331C (en) * | 2009-06-22 | 2017-12-19 | Dan Schellenberg | Centerless grinding machine |
| CN103639855B (zh) * | 2013-12-31 | 2015-12-23 | 梧州市三禾添佰利五金加工有限公司 | 改进型无心磨研磨装置 |
| US10195709B2 (en) * | 2015-02-09 | 2019-02-05 | Glebar Acquisition, Llc | Motorized blade rest apparatus and grinding system with motorized blade rest apparatus |
| CN104669080B (zh) * | 2015-03-11 | 2017-01-18 | 聊城万合工业制造有限公司 | 一种用于外圆磨床上的无心夹具 |
| JP6672682B2 (ja) * | 2015-10-05 | 2020-03-25 | 株式会社ジェイテクト | 加工装置 |
| CN107471105A (zh) * | 2017-08-23 | 2017-12-15 | 芜湖凝鑫机械有限公司 | 模具打磨固定装置 |
| CN112355798A (zh) * | 2020-11-07 | 2021-02-12 | 浙江东盛精密机械有限公司 | 一种磨床 |
| CN115302349B (zh) * | 2022-09-02 | 2024-03-12 | 浙江诚昌机械配件有限公司 | 一种毛刺去除机及其使用方法 |
| CN118060988B (zh) * | 2024-03-21 | 2024-08-13 | 济南佃舍汽车配件有限公司 | 一种无心磨床自动上料装置 |
Family Cites Families (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1872405A (en) * | 1929-03-28 | 1932-08-16 | Cincinnati Grinders Inc | Grinding machinery |
| US2127210A (en) * | 1937-07-31 | 1938-08-16 | Norton Co | Grinding and lapping machine |
| US3466810A (en) * | 1967-03-30 | 1969-09-16 | Sundstrand Corp | Work rest structure for centerless grinders |
| US4507896A (en) * | 1982-11-30 | 1985-04-02 | Energy Adaptive Grinding, Inc. | Centerless grinding systems |
| GB2206299B (en) * | 1987-06-25 | 1991-02-06 | Litton Uk Ltd | Improvements in loading/unloading plunge centreless grinders |
| JPH02172650A (ja) * | 1988-12-24 | 1990-07-04 | Fanuc Ltd | 補強テレスコピックカバー |
| EP0449767B1 (de) * | 1990-03-23 | 1993-08-11 | Agathon A.G. Maschinenfabrik | Spitzenlose Rundschleifmaschine |
| AU657852B2 (en) * | 1992-04-10 | 1995-03-23 | Emag Holding Gmbh | Machining centre constructed from assemblies |
| JP3541963B2 (ja) * | 1994-03-09 | 2004-07-14 | 豊田工機株式会社 | 加工装置 |
| US5766057A (en) * | 1995-04-19 | 1998-06-16 | Cincinnati Milacron Inc. | Centerless grinding machine |
| US5613899A (en) * | 1995-06-05 | 1997-03-25 | Southern Carbide Specialists, Inc. | Centerless ceramic ferrule grinder |
| US5741175A (en) * | 1995-10-16 | 1998-04-21 | Voege; Richard E. | Flexible shield for a tile saw |
| DE29517783U1 (de) * | 1995-11-10 | 1996-01-11 | Hawema Werkzeugschleifmaschinen GmbH, 78647 Trossingen | Schutzkabine |
| DE19753797C2 (de) * | 1997-12-04 | 2001-02-22 | Buderus Schleiftechnik | Vorrichtung zum Schleifen von Werkstücken |
| DE19940685A1 (de) * | 1999-08-27 | 2001-03-01 | Mikrosa Werkzeugmaschinen Gmbh | Verfahren zum spitzenlosen Schräg-Einstechschleifen und Schleifmaschine |
| DE19940687A1 (de) * | 1999-08-27 | 2001-03-01 | Mikrosa Werkzeugmaschinen Gmbh | Schleifmaschinen zum spitzenlosen Schleifen von Werkstücken |
| DE19956900B4 (de) * | 1999-11-26 | 2005-09-08 | Stama Maschinenfabrik Gmbh | Werkzeugmaschine mit Faltenbalg-Dachabdeckung |
| US6457918B1 (en) * | 2000-08-22 | 2002-10-01 | Ann Arbor Machine Company | Machining cell with debris shields |
-
2000
- 2000-11-03 CH CH02157/00A patent/CH694940A5/de not_active IP Right Cessation
-
2001
- 2001-09-03 DE DE50108202T patent/DE50108202D1/de not_active Expired - Lifetime
- 2001-09-03 US US10/415,803 patent/US7223159B2/en not_active Expired - Lifetime
- 2001-09-03 EP EP01962522A patent/EP1330336B1/de not_active Expired - Lifetime
- 2001-09-03 AT AT01962522T patent/ATE310607T1/de active
- 2001-09-03 WO PCT/CH2001/000528 patent/WO2002036305A1/de not_active Ceased
- 2001-09-03 ES ES01962522T patent/ES2254465T3/es not_active Expired - Lifetime
- 2001-09-03 AU AU2001283750A patent/AU2001283750A1/en not_active Abandoned
Non-Patent Citations (1)
| Title |
|---|
| See references of WO0236305A1 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111958342A (zh) * | 2019-05-20 | 2020-11-20 | 乌尔斯·楚丁 | 无心外圆磨床 |
| EP3741508A1 (de) | 2019-05-20 | 2020-11-25 | Urs Tschudin | Spitzenlose rundschleifmaschine |
| CN111958342B (zh) * | 2019-05-20 | 2022-07-08 | 乌尔斯·楚丁 | 无心外圆磨床 |
Also Published As
| Publication number | Publication date |
|---|---|
| US7223159B2 (en) | 2007-05-29 |
| AU2001283750A1 (en) | 2002-05-15 |
| ATE310607T1 (de) | 2005-12-15 |
| ES2254465T3 (es) | 2006-06-16 |
| WO2002036305A1 (de) | 2002-05-10 |
| CH694940A5 (de) | 2005-09-30 |
| DE50108202D1 (de) | 2005-12-29 |
| US20040048551A1 (en) | 2004-03-11 |
| EP1330336B1 (de) | 2005-11-23 |
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