EP1047525A1 - Schleifscheibe mit umfangsrille - Google Patents
Schleifscheibe mit umfangsrilleInfo
- Publication number
- EP1047525A1 EP1047525A1 EP99902539A EP99902539A EP1047525A1 EP 1047525 A1 EP1047525 A1 EP 1047525A1 EP 99902539 A EP99902539 A EP 99902539A EP 99902539 A EP99902539 A EP 99902539A EP 1047525 A1 EP1047525 A1 EP 1047525A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- grinding
- grinding wheel
- circumferential groove
- stop surface
- wheel according
- 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
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
- B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
- B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
- B24B9/06—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain
- B24B9/08—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass
- B24B9/10—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass of plate glass
-
- 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
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
- B24B55/02—Equipment for cooling the grinding surfaces, e.g. devices for feeding coolant
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D5/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor
- B24D5/02—Wheels in one piece
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D7/00—Bonded 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
- B24D7/18—Wheels of special form
Definitions
- the present invention relates to a grinding wheel with a circumferential groove according to the preamble of claim 1.
- Such grinding wheels are known. They are used to grind the edges of glass panes while adding a cooling fluid to the grinding point.
- the circumferential groove has a predetermined contour due to production and wears out over time. Then the grinding wheel must be replaced.
- a cooling fluid usually water
- the water jet must be aligned as precisely as possible to a predetermined location, taking into account the relevant influencing factors.
- the cooling fluid jet is generally stationary with respect to the grinding spindle, that is, it can only be aligned together with the grinding spindle, a series of grinding wheels to be used must have the same dimensions so that the point of contact of the cooling fluid flow to the grinding point is kept exactly when the grinding wheel is changed remains. It is therefore not possible to use any grinding wheel in series one after the other.
- the present invention seeks to improve this ratio. It is therefore an object of the present invention to improve the grinding wheel provided for the special purpose of grinding the edges of glass panes in such a way that the tool life is increased independently of the abrasive composition.
- the advantage of the invention is that the number of positioning operations required per life cycle to align the geometry between the grinding wheel, glass wheel and cooling fluid flow is halved.
- the invention doubles the tool life in conjunction with a short changeover time for turning over the grinding wheel when changing from a machined circumferential groove to a new circumferential groove.
- the grinding wheel has a stop surface on two opposite flat sides. This serves as a reference surface for determining the distance to a single one of two circumferential grooves. The other stop surface then forms the reference surface for the other Circumferential groove. This creates the possibility of two-sided use of the grinding wheel.
- a single circumferential groove is assigned to each stop surface. The geometric distance between the stop surface and the circumferential groove is the same for both options that the grinding wheel offers.
- each circumferential groove is assigned to the stop surface of its immediately adjacent flat side.
- each circumferential groove is assigned to an abutment surface, which is seated on the opposite flat side.
- the first embodiment is of greater importance in view of the expected lower susceptibility to vibration.
- Fig.l an embodiment of the invention
- Fig.l shows a grinding spindle 1 which is cantilevered to a machine frame 2.
- the grinding spindle 1 is tubular.
- a quill 3 is guided inside the tube and can be fixed with the aid of a gill sleeve 4.
- the drive shaft 5 of the grinding machine which has a diameter step 6 at its lower end, is rotatably mounted within the sleeve 3.
- the diameter step 6 forms at its lower end the counter surface 7 against which the Grinding wheel 20 is present.
- the grinding wheel 20 is held against the counter surface 7 by means of the clamping screws 17 and is in direct contact with the counter surface 7 with its stop surface 8 (FIG. 1).
- the water tank 9 has an opening 10 which serves to supply the cooling fluid to the grinding point 18.
- the glass pane 11 to be machined is placed on a stationary workpiece holder 12 and is clamped there in a suitable manner such that when the grinding disk 20 rotates, the edge of the glass pane 11 always lies in the circumferential groove of the grinding disk 20 and is machined there to the intended contour.
- drive means can be provided, which are not to be shown here.
- the pin 3 can be displaced vertically within the grinding spindle 1 and is then held in place in the setting position once found by means of the gill collar 4.
- the grinding wheel 20 has a stop surface 8 (1), 8 (11) on two opposite flat sides 1, 11, and two circumferential grooves 13, 14, each of which is a different one of the two stop surfaces 8 (1), 8 (11) is assigned, and that both circumferential grooves 13, 14 have the same distance X from the stop surface 8 (1), 8 (11) respectively assigned to them.
- each stop surface 8 (1), 8 (11) on two opposite flat sides 1, 11, and two circumferential grooves 13, 14, each of which is a different one of the two stop surfaces 8 (1), 8 (11) is assigned, and that both circumferential grooves 13, 14 have the same distance X from the stop surface 8 (1), 8 (11) respectively assigned to them.
- the circumferential groove 13, 14 of the stop surface 8 is assigned to its directly adjacent flat side 1, 11. This results in a grinding wheel 20 which is symmetrical with respect to its central radial plane 15.
- the drive shaft 5 has at its lower end a straight cylindrical centering pin 16 which is seated in a corresponding straight cylindrical center hole 19 of the grinding wheel 20.
- a straight cylindrical centering fit has the advantage that it is retained even when the grinding wheel 20 is turned over.
- a centering fit can also be used, in which the grinding wheel 20, coming from each of its flat sides I or II, has a conical centering hole, each of which interacts with a correspondingly conical centering pin, which is seated on the drive axis 5.
- the basic principle of the invention is based on the fact that one of the two circumferential grooves is uniquely assigned to one of the two stop surfaces. This ensures that only a single and fixed axial position of the grinding spindle must be provided for both circumferential grooves of the same grinding wheel.
- the invention therefore offers the advantage that the grinding spindle can be seen practically statically over a doubled service life of one and the same tool, since the abutment surfaces on the grinding wheel each have identical distances between the counter surface 7 of the grinding spindle and one of the Determine both circumferential grooves.
- the invention therefore presents itself as a successful integration of the relevant machining surfaces which are symmetrical with respect to the central radial plane of the grinding wheel and which contribute to the fact that during the change from one catch groove on the other of the two circumferential grooves, despite the unchanged machine situation, a tolerance-accurate continuation of the grinding process started with the previous circumferential groove can take place.
- the existing degree of freedom of the grinding spindle which allows the axial longitudinal adjustment of the grinding spindle, is no longer required thanks to the paired assignment between the stop surface and the circumferential groove when converting from one of the two circumferential grooves to the other of the circumferential grooves.
- the re-profiling machine spindle no longer needs readjustment.
- grinding wheels usually consist of a metallic carrier body, in the outer circumference of which an abrasive coating is incorporated, the depth of which is greater than the degree of wear, which is a circumferential groove characterizes as no longer usable, grinding wheels of this type can be subjected to re-profiling several times, as a result of which the cost-saving effect is repeated.
- the grinding surface is equally effective in both possible directions of rotation. This is achieved in that the abrasive components of the grinding surface are applied regardless of the direction of rotation.
- the grinding surface has no preferred direction of grinding.
- a distance 23 is also provided between the two circumferential grooves, so that the zones of the two circumferential grooves oriented toward the central region of the grinding wheel do not touch one another. Otherwise, the outer contour of the grinding wheel outside the two circumferential grooves is straight cylindrical. On the one hand, this offers a simplified production and, on the other hand, enables the cooling fluid to flow off easily.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19801377 | 1998-01-16 | ||
DE19801377A DE19801377C2 (de) | 1998-01-16 | 1998-01-16 | Schleifscheibe mit Umfangsrille |
PCT/EP1999/000195 WO1999036225A1 (de) | 1998-01-16 | 1999-01-15 | Schleifscheibe mit umfangsrille |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1047525A1 true EP1047525A1 (de) | 2000-11-02 |
EP1047525B1 EP1047525B1 (de) | 2001-10-04 |
Family
ID=7854745
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99902539A Expired - Lifetime EP1047525B1 (de) | 1998-01-16 | 1999-01-15 | Schleifscheibe mit umfangsrille |
Country Status (6)
Country | Link |
---|---|
US (1) | US6287176B1 (de) |
EP (1) | EP1047525B1 (de) |
AT (1) | ATE206343T1 (de) |
DE (2) | DE19801377C2 (de) |
ES (1) | ES2162515T3 (de) |
WO (1) | WO1999036225A1 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10249578B4 (de) * | 2002-10-24 | 2005-08-04 | Rohmer & Stimpfig Maschinen- Und Apparatebau Gmbh | Einrichtung zum Bearbeiten des Randes eines Gegenstandes |
WO2014176202A1 (en) * | 2013-04-25 | 2014-10-30 | Saint-Gobain Abrasives, Inc. | Grinding and polishing tool |
CN109048547A (zh) * | 2018-08-24 | 2018-12-21 | 北京铂阳顶荣光伏科技有限公司 | 磨边倒角方法及磨边倒角设备 |
CN109304667A (zh) * | 2018-10-26 | 2019-02-05 | 东旭科技集团有限公司 | 研磨装置 |
FR3093662A1 (fr) * | 2019-03-14 | 2020-09-18 | Saint-Gobain Glass France | FACONNAGE De VERRE PLAT et AVIVAGE DES MEULES UTILISEES |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE7202327U (de) * | 1972-01-21 | 1972-05-10 | Helbrecht O | Schleifscheibe für Brillenfacetten |
DE3534425A1 (de) * | 1985-02-13 | 1986-08-14 | Benteler-Werke Ag Werk Neuhaus, 4790 Paderborn | Kantenschleifmaschine |
DE8627694U1 (de) * | 1986-10-14 | 1987-02-05 | Heinrich, Alfred | Schleifwerkzeug für rotierende oder oszillierende Manikür- und Pedikürgeräte |
DE3706886A1 (de) * | 1987-03-04 | 1988-09-22 | Bielefelder Union Bruno Koch G | Kantenschleifmaschine |
CH687913A5 (de) * | 1993-11-19 | 1997-03-27 | Bystronic Masch | Bearbeitungsverfahren und Schleifmaschine bzw. Schleifscheibe zur Durchfuehrung desselben. |
JP3010572B2 (ja) * | 1994-09-29 | 2000-02-21 | 株式会社東京精密 | ウェーハエッジの加工装置 |
JP3620679B2 (ja) * | 1996-08-27 | 2005-02-16 | 信越半導体株式会社 | 遊離砥粒によるウエーハの面取装置及び面取方法 |
JPH11320364A (ja) * | 1998-05-19 | 1999-11-24 | Shin Etsu Handotai Co Ltd | ウエーハの面取り部の軟研削加工管理方法及び面取り装置 |
-
1998
- 1998-01-16 DE DE19801377A patent/DE19801377C2/de not_active Expired - Fee Related
-
1999
- 1999-01-15 US US09/581,950 patent/US6287176B1/en not_active Expired - Fee Related
- 1999-01-15 DE DE59900294T patent/DE59900294D1/de not_active Expired - Fee Related
- 1999-01-15 ES ES99902539T patent/ES2162515T3/es not_active Expired - Lifetime
- 1999-01-15 WO PCT/EP1999/000195 patent/WO1999036225A1/de active IP Right Grant
- 1999-01-15 AT AT99902539T patent/ATE206343T1/de not_active IP Right Cessation
- 1999-01-15 EP EP99902539A patent/EP1047525B1/de not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO9936225A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO1999036225A1 (de) | 1999-07-22 |
DE59900294D1 (de) | 2001-11-08 |
ES2162515T3 (es) | 2001-12-16 |
EP1047525B1 (de) | 2001-10-04 |
ATE206343T1 (de) | 2001-10-15 |
US6287176B1 (en) | 2001-09-11 |
DE19801377C2 (de) | 2001-07-05 |
DE19801377A1 (de) | 1999-07-22 |
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