WO2022243302A1 - Haltesegment für eine werkstückhalteeinrichtung, werkstückhalteeinrichtung sowie bearbeitungsmaschine - Google Patents
Haltesegment für eine werkstückhalteeinrichtung, werkstückhalteeinrichtung sowie bearbeitungsmaschine Download PDFInfo
- Publication number
- WO2022243302A1 WO2022243302A1 PCT/EP2022/063305 EP2022063305W WO2022243302A1 WO 2022243302 A1 WO2022243302 A1 WO 2022243302A1 EP 2022063305 W EP2022063305 W EP 2022063305W WO 2022243302 A1 WO2022243302 A1 WO 2022243302A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- holding
- workpiece
- segment
- support plate
- holding device
- Prior art date
Links
- 239000012530 fluid Substances 0.000 claims abstract description 37
- 238000012545 processing Methods 0.000 claims description 30
- 238000007789 sealing Methods 0.000 claims description 9
- 238000009826 distribution Methods 0.000 claims description 7
- 238000004891 communication Methods 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 description 6
- 238000003801 milling Methods 0.000 description 6
- 238000010276 construction Methods 0.000 description 5
- 230000001681 protective effect Effects 0.000 description 5
- 239000002023 wood Substances 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000011505 plaster Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/03—Stationary work or tool supports
- B23Q1/032—Stationary work or tool supports characterised by properties of the support surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/08—Work-clamping means other than mechanically-actuated
- B23Q3/088—Work-clamping means other than mechanically-actuated using vacuum means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
- B25B11/005—Vacuum work holders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q2240/00—Machine tools specially suited for a specific kind of workpiece
- B23Q2240/002—Flat workpieces
Definitions
- the invention relates to a holding segment for a workpiece holding device and a workpiece holding device which is designed to hold a workpiece. Furthermore, the invention relates to a processing machine comprising a workpiece holding device which is set up in particular for processing plate-shaped workpieces.
- So-called nesting machines with which an initial workpiece can be divided into several sub-workpieces, are used to divide up a plate-shaped workpiece.
- a milling unit is used to divide the starting workpiece, which engages in the workpiece held on a clamping table. During the cutting process, the milling unit follows the corresponding cutting contours with optimized waste.
- a protective plate between the worktable and the starting workpiece, which serves as a wear plate. This enables the parts to be completely separated from the starting workpiece by slightly dipping the milling tool into the protective panel.
- the protective plate also has the task as a vacuum distribution system between the surface of the worktable and the underside of the workpiece.
- a calibration process for the protection plate is usually required after a certain number of processing processes. This reduces productivity and the protective plate adds additional cost to its procurement and handling. However, this method has proven itself industrially.
- an integrated vacuum distribution system is used on the clamping table, which is divided into zones in order to supply individual areas of the table with a vacuum.
- the workpiece clamping can be adapted to different dimensions of the workpieces depending on the assignment of the table.
- the construction effort increases with the number of zones available for a table, since the corresponding installation technology is comparatively complex.
- the clamping table is designed in such a way that each zone is provided with a separate supply line system.
- the vacuum capacity of the clamping table of a nesting machine is designed in such a way that a certain vacuum capacity must be guaranteed at all times when the workpiece is being clamped, for example 60% of the nominal vacuum.
- the vacuum requirement increases proportionally with the table size. This aspect must be taken into account when designing the vacuum performance.
- the holding segment suitable for a workpiece holding device comprises: a platen with openings, a manifold element having at least one fluid channel, the manifold element being provided for fluid communication with at least one supply line, and a plurality of valves for fluid communication of the fluid channel of the distributor element with the openings of the support plate, each of the valves being able to be switched on/off separately.
- the holding segment for the workpiece holding device is suitable for a modular structure or the workpiece holding device has a modular structure, in particular comprises a large number of holding segments, the workpiece holding device can be adapted according to the required dimensions. This enables a high level of flexibility in the design and manufacture of such a workpiece holding device. By using similar or the same holding segments, prefabrication focused on a defined number of work steps can be implemented.
- the workpiece holding device is particularly suitable for holding one or more workpieces that are to be divided (nesting method).
- the support plate is provided with a sealing device which subdivides the holding segment into holding areas.
- the holding segment can be divided into several sections.
- the distributor element has a groove that forms the at least one fluid channel.
- a distribution element can be integrated into the construction to save space.
- the retention segment includes a support member disposed between the platen and the manifold member, the support member having a plurality of apertures to provide fluid communication between the manifold member and the apertures of the platen.
- a seal to the support plate can be provided with the carrier element.
- the platen includes a grooved surface.
- a negative pressure can be evenly distributed by means of the grooves, so that a particularly secure holding and at the same time a support for a workpiece, in particular a plate-shaped one, is ensured.
- the support plate has a rubberized surface.
- the rubberized surface ensures a particularly advantageous seal to a workpiece.
- an additional slip resistance is guaranteed, which has proven to be advantageous in particular when processing plate-shaped workpieces, for example in the nesting process.
- the rubberized surface can be designed in such a way that nesting processing can be carried out without an additional protective board.
- the distributor element has a first fluid channel and a second fluid channel.
- the fluid channels can be used to provide different pressure levels. The range of uses for the holding segment can thus be significantly expanded.
- the holding segment comprises a fluid pressure detection device. In this way one can Occupancy of the holding segment or sections thereof are monitored.
- a workpiece holding device which is set up to hold a workpiece and comprises a plurality of holding segments.
- the holding segments can be designed according to one of the aspects listed above.
- the holding segments of the workpiece holding device comprise the following features: a support plate with openings, a distributor element which has at least one fluid channel, the distributor element being in fluid communication with at least one supply line, and a plurality of valves for fluidly connecting the distributor element with the openings of the support plate , whereby each of the valves can be switched on/off separately.
- adjacent holding segments are connected to one another by means of a plug connection. This simplifies the construction of different workpiece holding devices with such holding segments, so that significant cost advantages are also made possible with a flexible design.
- the holding segments can essentially have the same length and/or width.
- the individual holding segments can thus be manufactured in large numbers and assembled individually for a respective workpiece holding device.
- the invention provides a processing machine which is particularly suitable for processing plate-shaped workpieces.
- the processing machine comprises: a holding segment according to one of the aspects mentioned above or a workpiece holding device according to one of the aspects mentioned above.
- the processing machine comprises at least one suppressor generating device.
- the processing machine comprises a first vacuum generating device for generating a first negative pressure level and a second negative pressure generating device for generating a second negative pressure level.
- the range of uses of the processing machine can thus be significantly expanded, since a respective vacuum level can be used as required.
- the processing machine can have a control device that is set up to control a fluid connection of one of the vacuum generating devices to the support plate of a holding segment, in particular by switching one or more of the valves on or off. According to this configuration, a respective vacuum level can be provided individually.
- a holding segment for a workpiece holding device, a workpiece holding device and a processing machine according to one of the aforementioned aspects for holding a particularly plate-shaped workpiece.
- a workpiece can be, for example, a workpiece made of wood, a wood material, plastic, plaster, composite material, cement fiber or the like.
- the processing machine preferably has a milling unit.
- the milling unit can be provided on a movable unit, the milling unit preferably being attached to a carriage that can be moved in the horizontal and/or vertical direction relative to the movable unit.
- the processing machine is thus preferably set up for dividing a workpiece.
- Fig. 1 is a perspective view of a
- Fig. 2a shows a holding segment of a
- FIG. 2b shows a support element of a holding segment according to FIG. 2a.
- Fig. 3 shows a holding segment of a
- FIG. 1 shows a perspective view of an embodiment of a processing machine 100 which is set up for processing, in particular, plate-shaped workpieces.
- the processing machine 100 is provided for dividing workpieces using the so-called nesting method.
- Such a workpiece can be, for example, a workpiece made of wood, a wood material, plastic, plaster, composite material, cement fiber or the like, as is used in the furniture and construction element industry.
- the processing machine 100 includes a movable unit 10 which can be moved along a machine bed 20 .
- the machine bed 20 comprises a support unit 40 and a workpiece holding device 30 provided on the supporting unit 40.
- the workpiece holding device 30 forms a horizontal plane on which a workpiece can be placed.
- the workpiece holding device 30 includes a plurality of holding segments 30a which are arranged side by side and connected to each other to form the plane for placing a workpiece.
- the holding segments 30a have a platen 31 with a grooved surface to supply negative pressure/vacuum for holding a workpiece to different areas of the holding segment 30a.
- openings 31a are provided in a support plate 31 of a respective holding segment 30a, which openings can be fluidly connected to a vacuum source.
- a holding segment 30a is further subdivided into holding areas 31b by a sealing device 32 provided on the support plate 31 .
- the sealing device 32 is also referred to as a skeleton seal.
- each of the holding areas 31b has eight openings 31a.
- a carrier element 33 is arranged below the support plate 31 of the holding segment 30a, by means of which carrier element 33 the support plate 31 is sealed.
- the support member 33 includes a plurality of openings 33a.
- a distributor element 35 is arranged in the vertical direction below the carrier element 33 and provides a fluid channel 35a, which also leads into the region of the openings 33a.
- a fluid connection between the distributor element 35 and the openings 33a and the openings 31a is provided by a multiplicity of valves 36, each of the valves 36 being able to be switched on/off separately.
- a supply of the distributor element 35 with negative pressure (vacuum) is achieved by means of a feed line 37 (the feed line 37 is indicated only schematically in FIG. 2a).
- the workpiece holding device 30 has a modular structure and, in particular, includes a large number of holding segments 30a with correspondingly assigned distribution elements 35, the workpiece holding device 30 can be adapted according to the required dimensions. The respective holding segments 30a can be combined accordingly to form the workpiece holding device 30 .
- a distributor element 35′ of a respective holding segment 30a′ comprises two fluid channels, one of the fluid channels being provided for a high vacuum and another fluid channel being provided for a low vacuum.
- a machine tool equipped with such a holding segment 30a' can have two vacuum generating devices, one of the vacuum generating devices being set up to generate a high vacuum and another negative pressure generating device to be set up to generate a low vacuum.
- the processing machine can also be supplied with different vacuum levels.
- the holding segment 30a' according to the second embodiment comprises a bearing plate 31' having a grooved surface. Further, the platen 31' includes opening 31a' for supplying vacuum to the grooved surface of the platen 31'.
- the holding segment 30a' is subdivided into holding areas by a sealing device provided on the support plate 31 (not shown, but designed similarly to the sealing device 32 in the first embodiment) (see also holding areas 31b of the first embodiment).
- the sealing device is also referred to as a skeleton seal.
- a support member 33' is provided beneath the support plate 31' of the support segment 30a', the support member 33' having a plurality of openings 33a', 33b', a first set of openings 33a' for providing high vacuum and a second set of openings 33b' is provided to provide low vacuum.
- the holding segment 30a ' comprises the already mentioned distributor element 35', which is attached to the support plate 31' facing away from the carrier element 33 'is arranged.
- the distributor element 35' comprises two fluid channels, with a first supply line 37' being associated with a first fluid channel 35a' and a second supply line 38' being associated with a second fluid channel 35b'.
- the holding element 30a' comprises a multiplicity of valves 36a', 36b', a first group of the valves 36a' forming a connection between the first fluid channel 35a' of the distributor element 35' and the first openings 33a' and a second group of valves 36b'. providing a connection between the second fluid channel 35b' of the distributor element 35' and the second openings 33b'.
- Each of these valves can be switched on/off separately.
- the workpiece holding device 30' of the second embodiment is also constructed in a modular manner.
- the workpiece holding device 30' can be constructed in accordance with the required dimensions.
- the correspondingly designed retaining segments 30a' allow for a high degree of flexibility with comparatively low production costs.
- the holding segments 30a' can already be equipped with integrated valves and corresponding sensors during pre-assembly.
- the workpiece holding device 30' can be completed by means of a plug-in system.
- the support plate 31' is provided with a sealing device similar to the first embodiment (see sealing device 32 according to the first embodiment) in order to subdivide the support plate 31' into holding areas.
- a sealing device similar to the first embodiment (see sealing device 32 according to the first embodiment) in order to subdivide the support plate 31' into holding areas.
- a fluid pressure detection device (a fluid pressure sensor) can be integrated in embodiments in order to monitor an occupancy of the holding segment, or sections thereof.
- Embodiments may be provided individually or in any suitable sub-combination.
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202280034984.8A CN117295582A (zh) | 2021-05-18 | 2022-05-17 | 用于工件保持装置的保持段、工件保持装置和加工机器 |
EP22730674.3A EP4341039A1 (de) | 2021-05-18 | 2022-05-17 | Haltesegment für eine werkstückhalteeinrichtung, werkstückhalteeinrichtung sowie bearbeitungsmaschine |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102021112807.2A DE102021112807A1 (de) | 2021-05-18 | 2021-05-18 | Haltesegment für eine Werkstückhalteeinrichtung, Werkstückhalteeinrichtung sowie Bearbeitungsmaschine |
DE102021112807.2 | 2021-05-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2022243302A1 true WO2022243302A1 (de) | 2022-11-24 |
Family
ID=82067762
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2022/063305 WO2022243302A1 (de) | 2021-05-18 | 2022-05-17 | Haltesegment für eine werkstückhalteeinrichtung, werkstückhalteeinrichtung sowie bearbeitungsmaschine |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP4341039A1 (de) |
CN (1) | CN117295582A (de) |
DE (1) | DE102021112807A1 (de) |
WO (1) | WO2022243302A1 (de) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4066249A (en) * | 1977-05-11 | 1978-01-03 | Grumman Aerospace Corporation | Modular vacuum work area |
DE4030113A1 (de) * | 1990-09-24 | 1992-03-26 | Wissner Rolf | Vorrichtung zum spannen von zu bearbeitenden platten |
EP0608528A1 (de) * | 1993-01-29 | 1994-08-03 | MIELENZ GmbH | Vakuumspannplatte |
WO1996033049A1 (en) * | 1995-04-19 | 1996-10-24 | Kimble Alvin J | Locking ring vacuum clamping system with load/unload capabilities |
DE20102144U1 (de) * | 2000-06-14 | 2001-05-23 | Goeckel Karl | Maschinentisch für eine Bearbeitungsmaschine |
WO2002077452A2 (en) * | 2001-03-27 | 2002-10-03 | Aprion Digital Ltd. | Vacuum distribution controller apparatus |
US20200101584A1 (en) * | 2018-10-02 | 2020-04-02 | Alta Devices, Inc. | Automated linear vacuum distribution valve |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2763877B1 (fr) | 1997-05-30 | 1999-08-27 | Itb | Dispositif de fixation d'une piece plane par depression d'air de type table a depression pour centre d'usinage |
DE202009007827U1 (de) | 2009-06-03 | 2009-08-20 | Horst Witte Gerätebau Barskamp KG | Vakuumspannplatte |
DE102019126112A1 (de) | 2019-09-27 | 2021-04-01 | Homag Gmbh | Vakuumspanneinrichtung |
-
2021
- 2021-05-18 DE DE102021112807.2A patent/DE102021112807A1/de active Pending
-
2022
- 2022-05-17 WO PCT/EP2022/063305 patent/WO2022243302A1/de active Application Filing
- 2022-05-17 EP EP22730674.3A patent/EP4341039A1/de active Pending
- 2022-05-17 CN CN202280034984.8A patent/CN117295582A/zh active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4066249A (en) * | 1977-05-11 | 1978-01-03 | Grumman Aerospace Corporation | Modular vacuum work area |
DE4030113A1 (de) * | 1990-09-24 | 1992-03-26 | Wissner Rolf | Vorrichtung zum spannen von zu bearbeitenden platten |
EP0608528A1 (de) * | 1993-01-29 | 1994-08-03 | MIELENZ GmbH | Vakuumspannplatte |
WO1996033049A1 (en) * | 1995-04-19 | 1996-10-24 | Kimble Alvin J | Locking ring vacuum clamping system with load/unload capabilities |
DE20102144U1 (de) * | 2000-06-14 | 2001-05-23 | Goeckel Karl | Maschinentisch für eine Bearbeitungsmaschine |
WO2002077452A2 (en) * | 2001-03-27 | 2002-10-03 | Aprion Digital Ltd. | Vacuum distribution controller apparatus |
US20200101584A1 (en) * | 2018-10-02 | 2020-04-02 | Alta Devices, Inc. | Automated linear vacuum distribution valve |
Also Published As
Publication number | Publication date |
---|---|
DE102021112807A1 (de) | 2022-11-24 |
CN117295582A (zh) | 2023-12-26 |
EP4341039A1 (de) | 2024-03-27 |
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