EP4003644A1 - Vorrichtung zum bearbeiten von rändern von flächigen werkstücken - Google Patents
Vorrichtung zum bearbeiten von rändern von flächigen werkstückenInfo
- Publication number
- EP4003644A1 EP4003644A1 EP20746131.0A EP20746131A EP4003644A1 EP 4003644 A1 EP4003644 A1 EP 4003644A1 EP 20746131 A EP20746131 A EP 20746131A EP 4003644 A1 EP4003644 A1 EP 4003644A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- slip ring
- carrier
- edges
- workpiece
- ring parts
- 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.)
- Pending
Links
- 239000011521 glass Substances 0.000 claims abstract description 37
- 230000002706 hydrostatic effect Effects 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims description 15
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000009966 trimming Methods 0.000 abstract description 10
- 238000003754 machining Methods 0.000 description 5
- 238000005498 polishing Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009957 hemming Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000011089 mechanical engineering Methods 0.000 description 1
- 230000036316 preload Effects 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
- 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
- B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/04—Headstocks; Working-spindles; Features relating thereto
-
- 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
-
- 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
- B24B9/102—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 for travelling sheets
Definitions
- the invention relates to an apparatus for processing the
- Edges of flat workpieces such as panes of glass, with the features of the introductory part of claim 1.
- the inventive device includes for ablative
- the device according to the invention can also be designed and set up for polishing the edges of workpieces.
- glass panes in order to trim their edges, are also known belt grinders, as is known, for example, from EP 1 344 604 B1 or DE 44 19 963 CI.
- Belt grinders in particular with grinding belts arranged in a cross shape, have the advantage that the grinding belts lie flexibly on the glass edges, so that the precision of the Infeed of the glass pane to the tool is not decisive. In this way, interruptions and interruptions can be added to the level of
- Glass pane of the given shape and size can be compensated for by the flexibility of the sanding belts.
- the grinding wheels usually having a V-profile and for
- Different glass thicknesses can be used, are usually rigid, so that inaccuracies in the format and size of the flat workpiece to be processed (glass pane) as well as deformations of the workpiece (the workpiece is then discarded, i.e. no longer flat) must be compensated for by the machine. It is therefore necessary to take measures to trace the edges to be machined like this
- No. 2,733,553 A shows and describes a tool for grinding knives or the like.
- the tool has two grinding wheels, which are fixed on two sleeves with the help of nuts.
- the sleeves are arranged on a shaft which is set in rotation by a motor and are held by springs in a central position in which they lie against one another.
- the grinding wheels When grinding, the grinding wheels can be moved against the force of the springs, so that the edges on both sides of a knife or the like can be processed (column 1, lines 18 to 25 and column 2, lines 50 to 59).
- a knife or the like When cutting flat workpieces, in particular glass panes, deviations from the desired size and shape, gaps and interruptions, and deviating geometry (e.g. a diamond with beveled edges is cut instead of a rectangle) can occur.
- deviating geometry e.g. a diamond with beveled edges is cut instead of a rectangle
- the invention is based on the object of providing a device with which flat workpieces, such as
- Glass panes can also be processed (trimmed / polished) successfully and to the desired extent if the shape of the edges and the position of the edges of the desired shape or the
- the device according to the invention are the subject of
- the device according to the invention which is designed essentially similar to a grinding wheel, has a slip ring with an outwardly open groove with grinding surfaces.
- the slip ring with the grinding surfaces is adjustable in the direction of the axis about which the device is set in rotation by its drive. So can in the invention
- Slip ring is provided with the carrier of the device.
- the slip ring is mounted in a floating manner on the carrier (the inner diameter of the slip ring is larger than the outer diameter of the carrier) so that the
- the floating bearing of the slip ring on the carrier is designed as a hydrostatic bearing or as a gas (air) bearing.
- the inventive design of the device with a hydrostatic bearing or gas bearing has the advantage that the coupling of the slip ring with its carrier, with which the torque is transmitted from the carrier to the slip ring, can be designed so that the floating bearing of the slip ring is not adversely affected.
- Grinding surfaces are elastically resiliently loaded, so that when the device is used they preferably rest against the edges of the edges of the workpiece with elastic pretension.
- springs are provided, in a possible embodiment of the invention, these have the effect that the slip ring with its grinding surfaces is moved back into the starting position of the grinding surfaces after the device has been used.
- independent (resilient) in a possible embodiment of the invention, these have the effect that the slip ring with its grinding surfaces is moved back into the starting position of the grinding surfaces after the device has been used.
- slip ring (becomes larger or smaller), i.e. does not remain in the target position. This is possible, for example, if the slip ring is divided into two slip ring parts.
- the inventive device combines in the exemplary embodiment with resilient grinding surfaces, the advantages of belt grinders with those of grinding wheels, since the
- grinding surfaces are designed to be elastically resilient, that is to say rest against the edges of the edges of the workpiece with elastic (resilient) prestress.
- the adjustability of the grinding surfaces of the device according to the invention can be achieved in different ways within the scope of the invention.
- the grinding surfaces are elastically resilient in the direction of the axis.
- Grinding wheel engages, it allows to design the floating bearing of the grinding wheel in the form of a hydrostatic bearing or a gas bearing without the influence of the coupling between the grinding wheel and its carrier so that a good bearing of the grinding wheel is given.
- Slip ring with sliding surfaces on the carrier which serves as a shaft for the rotary drive, adjustable, e.g. floating, mounted.
- the slip ring can be moved in the direction of the (rotary) axis without the slip ring being loaded into its starting position by springs. In this way, the grinding surfaces can match the edges to be trimmed on the edges of the
- Glass pane deviate from the nominal position in the direction of the (rotary) axis in one direction or the other.
- Carrier is for example resiliently supported.
- Sliding surfaces are provided on two slip ring parts, which are arranged to be movable relative to one another and on the carrier in the direction of the (rotary) axis and are resiliently loaded towards one another.
- Spring force is arranged displaceably. This can be achieved, for example, that the slip ring on its carrier in the direction of the axis of rotation of a carrier against the force of springs which act on both sides of the slip ring,
- a slip ring which optionally comprises two slip ring parts, is generally provided on the carrier of the device according to the invention. In the context of the invention, however, embodiments are also considered in which on a Carriers more than one slip ring and / or more than one pair
- Slip ring parts are provided. Even if on one carrier two or more than two slip rings and / or pairs of
- Slip ring parts are provided, one-piece slip rings and slip rings divided into slip ring parts can be combined. Furthermore, in the context of the invention is considered on a
- Carrier slip rings with different grooves trapezoidal, V-shaped etc.
- Carrier slip rings with different grooves trapezoidal, V-shaped etc.
- / or differently shaped grinding surfaces to be arranged.
- the slip rings provided within the scope of the invention can be designed for removing machining (e.g. trimming) and also for polishing the edges of workpieces.
- any type of elastic means that acts on a slip ring or
- Slip ring parts act, includes. Examples are metallic springs (coil springs), gas springs (pneumatic springs) and liquid springs.
- the invention offers one or more of the following advantages:
- the quality of the hem remains constant if the shape / size of the object to be processed differs from the specified shape / size
- the seam quality is significantly better than with conventional grinding wheels
- Slip ring parts are provided, which are for example resiliently supported on the carrier of the device, changing is simple and inexpensive, since only slip rings / slip ring parts have to be exchanged,
- the inventive device can be used in all machines and allows conventional grinding wheels in existing machines by the inventive
- FIGS. 1 to 4 a The embodiment shown in FIGS. 1 to 4 a
- Device 1 which is designed in the manner of a grinding wheel, comprises a carrier 12 serving as a (drive) shaft and a slip ring 25 made of two slip ring parts 6
- Slip ring parts 6 are arranged on the carrier 12, which is embodied as a shaft, so as to be displaceable in the direction of the axis 2 of the carrier 12, as is indicated in FIGS. 3 and 4 by the arrows 13.
- a line 14 for the supply of liquid (supply of water) is provided so that the slip ring parts 6 of the slip ring 25 are mounted on the carrier 12 via hydrostatic bearings (floating).
- hydrostatic bearings for the slip ring 25 or the slip ring parts 6 can also be provided with gas (air) bearings.
- gas bearings a gas (for example air) is supplied via line 14.
- Liquid is cooled during processing in order to trim edges 9 at its edge 10.
- the slip ring parts 6 have grinding surfaces 7 which are conically or concavely curved and, when the device 1 is used for trimming the edges 9 of an edge 10, attack the workpiece 8 (glass pane) to be machined.
- Embodiment are of springs 16, in the example
- Shoulders 17 of the carrier 12 are arranged, loaded in the sense of a movement towards one another.
- the slip ring parts 6 are supported on the carrier 12 by springs 16, the slip ring parts 6 can follow the course of the edge 10 of the workpiece 8 (glass pane) to be machined without special guiding measures being required.
- the reason for this is that the grinding surfaces 7 of the slip ring parts 6 are resiliently resilient and, under resilient preload, also apply to the edges 9 of the workpiece 8 to be trimmed, such as a pane of glass, when the workpiece 8 is of the desired size, position and / or Shape differs.
- pins 18 are used as
- processed workpiece 8 (the glass sheet to be processed) to the plane of symmetry (plane perpendicular to the axis 2, which lies in the middle between the slip ring parts 6) of the device 1 exactly
- Fig. 2 shows an offset of a workpiece 8, as often occurs in practice, the grinding surfaces 7 of the
- Slip ring parts 6 attack evenly (centered) edges 9 of the edge 10 of the workpiece 8 and are offset in relation to the position shown in FIG. 1.
- Fig. 3 the case is shown in which the workpiece 8 is laterally offset with respect to the target position and is also larger than it corresponds to the target size (blank with oversize).
- Fig. 4 the case is shown in which the workpiece 8 (the glass pane) is correctly aligned, i.e. not offset laterally, but is oversized, i.e. larger than that Target dimension, in which case the grinding surfaces 7 of the slip ring parts 6 are correctly aligned on the edges 9 and engage the edges 9 in a resilient manner.
- the springs 16 acting as restoring elements, which act on the slip ring parts 6 and resiliently move them into their in Fig.
- Slip ring parts 6 of the slip ring 25 are designed to be resilient.
- the grinding surfaces 7 are automatically directed towards the edges 9 of the flat to be machined
- Workpiece 8 (glass pane), as it is under elastic
- FIGS. 5 to 9 show an embodiment of the device 1 according to the invention which is modified compared to the embodiment of FIGS. 1 to 4 and which essentially takes the form of a grinding wheel
- the slip ring 25 includes two
- Slip ring parts 6 with conical grinding surfaces 7 which are arranged on a carrier 12 serving as a base body so as to be displaceable in the direction of the axis 2 of the device 1.
- annular space 21 is provided for each slip ring part 6, into which liquid or gas is introduced.
- the annular space 21 is delimited by the carrier 12, the slip ring parts 6 and a sleeve-shaped element 22 (tubular part) provided on the slip ring parts 6.
- hydraulic springs or gas springs acting in the axial direction are formed by pressure, which move the slip ring parts 6, and thus their grinding surfaces 7, elastically towards one another in the sense of a movement burden.
- FIGS. 5 to 9 has the advantage, due to the liquid springs or the gas springs (the spaces 21 acted upon with liquid or gas (air)), that the slip ring parts 6 of the slip ring 25 and thus their grinding surfaces 7 through the workpiece 8 (the glass pane) can be moved in the axial direction without changing the contact force (if the pressure of the medium or gas does not change). This allows the slip ring parts 6 with the grinding surfaces 7 to adapt to different geometries of the
- the sleeve-shaped elements 22 tubular parts provided on the slip-ring parts 6 to have openings 23 (holes).
- the openings 23 are outside the annular spaces 21, which
- slip ring parts 6 of those shown in FIGS Embodiment are coupled to the carrier 12 for rotation.
- pins 18, similar to pins 18 shown in FIGS. 1 to 4, are used for torque transmission
- the device 1 has an undivided slip ring 25 with a trapezoidal groove 5, the lateral (conical)
- Groove surfaces are designed as grinding surfaces 7.
- Slip ring 25 is secured by pins 18 attached to flange 19 of carrier 12 and in recesses, e.g.
- springs 16 for example helical springs, are provided as elastically resilient restoring elements which align the slip ring 25 in its starting position (standby position), which is shown in FIG.
- a line 14 is for the supply of a liquid or gaseous
- the slip ring 25 of FIGS. 10 and 11 is rotationally coupled to the carrier 12 by pins 18.
- FIG. 11 shows the case in which the workpiece 8 (the glass pane to be processed) deviates from the desired position (indicated at the top in FIG. 10), for example because of a discarded workpiece.
- the grinding surfaces 7 are elastically resilient, follow the edges 9 and lie under elastic bias on the edges 9 of the to be trimmed
- Grinding surfaces 7 is floatingly mounted on the carrier 12 without springs 16 or the liquid springs / gas springs provided in the embodiment of FIGS. 6 to 10 being provided.
- Edges 9 of edges 10 of a flat workpiece 8, such as a glass pane, is essentially designed in the form of a grinding wheel and essentially corresponds to the embodiment shown in FIGS. 10 and 11, but the springs 16 are not provided.
- the groove 5 of the slip ring 25 can - instead of as shown trapezoidal - also be V-shaped.
- Slip rings 25 with a trapezoidal groove 5 can be used for trimming the edges 9 and for processing (grinding and / or polishing) the edge surfaces of the workpiece 8 aligned transversely to the plane of the workpiece 8.
- the bottom of the groove 5 has a machining, for example polishing, effect on the edge surface of the workpiece 8.
- Slip rings 25 with a V-shaped groove 5 are used, for example, when only the edges 9 on the edges 10 of workpieces 8 are to be machined (trimmed).
- Workpieces 8 such as panes of glass, a slip ring 25 set in rotation by a drive about an axis 2 is used.
- the grinding surfaces 7 that act on the edges 9 of the edge 10 of the workpiece 8 are designed to be movable in the axial direction, so that when they are trimmed the edges 9 of the
- the grinding surfaces 7 automatically lie against the edges 9 of the workpiece 8 to be trimmed, even if the edges 9 are not in the predetermined target position.
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)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT2612019 | 2019-07-22 | ||
PCT/EP2020/070409 WO2021013779A1 (de) | 2019-07-22 | 2020-07-20 | Vorrichtung zum bearbeiten von rändern von flächigen werkstücken |
Publications (1)
Publication Number | Publication Date |
---|---|
EP4003644A1 true EP4003644A1 (de) | 2022-06-01 |
Family
ID=71786911
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20746131.0A Pending EP4003644A1 (de) | 2019-07-22 | 2020-07-20 | Vorrichtung zum bearbeiten von rändern von flächigen werkstücken |
Country Status (5)
Country | Link |
---|---|
US (1) | US20220266407A1 (de) |
EP (1) | EP4003644A1 (de) |
CN (1) | CN114080298A (de) |
AT (1) | AT17015U1 (de) |
WO (1) | WO2021013779A1 (de) |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2733553A (en) * | 1952-09-18 | 1956-02-07 | Paul M Newsom | Cutting tool grinder |
GB811000A (en) * | 1957-11-07 | 1959-03-25 | J And H Taylor Holdings Ltd | Improvements in and relating to grinding machines |
US3030744A (en) * | 1960-03-08 | 1962-04-24 | Harig Mfg Corp | Air film bearing for machine tools |
DE1174202B (de) * | 1960-07-30 | 1964-07-16 | Applic Tech D Affutage Moderne | Schleifeinrichtung fuer Messer, Scheren od. dgl. |
DE4419963C1 (de) | 1994-06-08 | 1995-09-14 | Robert Dipl Ing Deichsel | Kreuzbandschleifmaschine zum beiderseitigen Anfasen des Randes von Glasplatten |
AT408856B (de) | 1997-12-02 | 2002-03-25 | Lisec Peter | Vorrichtung zum automatischen säumen von plattenförmigen gegenständen |
US6699103B1 (en) * | 2003-02-12 | 2004-03-02 | Foley-Belsaw Company | Mower reel blade grinding device |
ITTV20030091A1 (it) | 2003-06-20 | 2004-12-21 | For El Base Di Davanzo Nadia & C S Nc | Macchina automatica per la smerigliatura dei bordi delle lastre di vetro e procedimento automatico per la smerigliatura dei bordi delle lastre di vetro. |
JP2005349546A (ja) | 2004-06-14 | 2005-12-22 | Sankyo Diamond Industrial Co Ltd | 側面円形加工用研削工具 |
US7854650B2 (en) * | 2007-01-24 | 2010-12-21 | Kun-Lin Chuang | Knife sharpener |
US9555516B2 (en) | 2009-07-24 | 2017-01-31 | Corning Incorporated | Method for processing an edge of a glass plate |
SE535305C2 (sv) | 2009-12-22 | 2012-06-26 | Electrolux Ab | Dammsugare med indragbar hjälpsugslang |
ITPD20130286A1 (it) | 2013-10-17 | 2015-04-18 | Adi S P A | Mola, particolarmente per lavorazioni di molatura di lastre in vetro, ceramica o simili materiali |
AT515011B1 (de) * | 2013-11-14 | 2015-08-15 | Lisec Austria Gmbh | Verfahren und Vorrichtung zum Bearbeiten der Ränder flächiger Werkstücke |
-
2019
- 2019-07-22 AT ATGM8028/2020U patent/AT17015U1/de unknown
-
2020
- 2020-07-20 CN CN202080049368.0A patent/CN114080298A/zh active Pending
- 2020-07-20 WO PCT/EP2020/070409 patent/WO2021013779A1/de unknown
- 2020-07-20 EP EP20746131.0A patent/EP4003644A1/de active Pending
- 2020-07-20 US US17/628,421 patent/US20220266407A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
WO2021013779A1 (de) | 2021-01-28 |
CN114080298A (zh) | 2022-02-22 |
US20220266407A1 (en) | 2022-08-25 |
AT17015U1 (de) | 2021-02-15 |
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