EP1557240A1 - Procédé et dispositif pour le découpage au jet d'eau - Google Patents
Procédé et dispositif pour le découpage au jet d'eau Download PDFInfo
- Publication number
- EP1557240A1 EP1557240A1 EP04100250A EP04100250A EP1557240A1 EP 1557240 A1 EP1557240 A1 EP 1557240A1 EP 04100250 A EP04100250 A EP 04100250A EP 04100250 A EP04100250 A EP 04100250A EP 1557240 A1 EP1557240 A1 EP 1557240A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- workpiece
- water
- water jet
- water bath
- bath
- 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.)
- Withdrawn
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 101
- 238000000034 method Methods 0.000 title claims description 15
- 239000000463 material Substances 0.000 claims description 14
- 230000001681 protective effect Effects 0.000 claims description 8
- 238000003754 machining Methods 0.000 claims description 5
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 239000007787 solid Substances 0.000 abstract description 5
- 239000002245 particle Substances 0.000 abstract description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 230000006735 deficit Effects 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 210000002105 tongue Anatomy 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
- B24C1/04—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for treating only selected parts of a surface, e.g. for carving stone or glass
- B24C1/045—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for treating only selected parts of a surface, e.g. for carving stone or glass for cutting
Definitions
- the present invention relates to a method and an apparatus for the Waterjet cutting of workpieces.
- the waterjet cutting is on known processing technique and is suitable for a variety of materials, such as metals, stone, glass.
- a jet of water under high pressure and with an admixed one particulate solid leads to an erosion-like material removal.
- By properly focused water jets clean cuts can be achieved where the thicknesses to be cut are material-dependent.
- the procedure finds especially application in the realization of two-dimensional complicated Patterns that are difficult to saw.
- the invention is based on the problem, a method and an apparatus for Specify water jet cutting with improved applications.
- the invention is directed to a method for water jet cutting workpieces, in which a workpiece is held with a workpiece holder and is processed with a jet of water under high pressure, characterized in that the water steel after passing through a wall of the workpiece by a between the wall and a protective material introduced in the direction of the water jet is intercepted, and to an apparatus for water jet cutting according to this method, which apparatus comprises: a water jet head capable of ejecting a water jet under high pressure, a workpiece holder for holding a workpiece to be processed, and a vessel for a water bath for capturing the water jet with the water bath, characterized in that the workpiece holder is adapted to hold the workpiece so that it is immersed in the water bath during processing.
- the invention is accordingly directed to a protective material which is between the actually to be machined wall and the wall to be protected is introduced.
- a protective material which is between the actually to be machined wall and the wall to be protected is introduced.
- It can be any materials capable of water jet sufficiently to absorb or brake, in particular to Solids, such as remnants of the material to be processed or other sufficient solid "sacrificial material".
- Such protective material may be in the form of plates, Tongues and similar geometrically adapted shapes are used. there can on a as hereinafter explained advantageous movement of the workpiece be considered during processing.
- the protective material can be both in terms of the workpiece as well as in relation to the non-moving Resting environment, so be attached to the workpiece itself or elsewhere.
- a preferred embodiment of the invention relates to the fact that it is this protective material to a liquid, especially the anyway during processing provided water, acts.
- the invention thus assumes that the Applications of water jet cutting technology can be extended if the workpiece partially immersed in the water bath. (In the following Water is representative of a protective material called.) It can then, for example plate-like parts of a complex structure in a while the machining upper area is edited, in particular cut, while other areas in front of it dipped in the water bath are protected accidentally damaged by the water jet.
- the water bath thus allows a separation between those for processing provided workpiece areas and other workpiece areas. Thereby can In particular workpieces are machined and cut, in which from the Direction of the water jet seen below the section to be machined further, not to be processed section is provided.
- the workpiece holder is at least one to arrange the essential part in the water bath itself. Not only the Areas of the workpiece holder, which at least in individual processing phases in advised the area of the water jet to be protected from this.
- the structure The workpiece holder also simplifies when positioning in the Water bath allows.
- hollow body in particular non-closed Hollow body.
- the invention of the opposite Sheath area arranged in a water bath and thus against damage protected by the processed by the machined shell area water jet become.
- This protection does not just concern the prevention of an accidental double cutting but also, for example, certain surface qualities the inner surface of the tube, itself by a widened Water jet or a relatively quick water injection could be damaged.
- the invention allows a water level within the hollow body, in particular just below the surface to be worked. But also with others, more complex shaped workpieces that no longer refer to as an open hollow body are comparable benefits can result.
- the workpiece holder is so designed so that the workpiece is rotated about an axis during machining can be. This is especially true for rotationally symmetrical workpieces all pipes, an advantage. On the one hand, pipes can then be cut through, without being recaptured. For another, along with one as well preferred mobility of the water jet head during processing as well more complex cutting patterns are mounted in a workpiece wall. Naturally are within the scope of the invention, further movement possibilities of Workpiece holder possible, however, it has been shown that in connection with an adjustability or mobility of the water jet head in many cases a Rotatable about a single axis of rotation, preferably perpendicular to the water jet direction and parallel to the water surface is sufficient.
- the workpiece holder preferably has two clamping heads which are between them can clamp the workpiece and an axis connecting the clamping heads can turn.
- One of the clamping heads can be used for workpiece removal and for Clamping be axially displaceable, so represent a so-called. Pinole.
- the clamping heads further preferably have conical insertion sections for insertion in a tube, as shown in more detail in the embodiment.
- one the clamping heads is preferably driven in rotation, while the other clamping head preferably free-running.
- the engine can be considered a watertight one Executed electric motor and be disposed within the water bath, however also provided outside the water bath and, for example, with a belt drive be connected to the chuck.
- the adjustability of the water jet head is preferably at least two-dimensional, and preferably in the plane of the water surface. Naturally additional degrees of freedom of adjustment of the water jet head can be added, as they are known per se in waterjet cutting devices.
- the numeral 1 denotes the surface of a water bath 2, that in a not shown here and in Fig. 2 schematically indicated vessel a Water jet cutting device is provided.
- the water jet cutting device has a water jet head 3 from which at the lower end a vertically directed downwardly focused water jet 4 under high pressure exit.
- the chuck 6 is as by the situation indicated schematically, the tube axis freely rotatable on a base 10 of the workpiece holder attached.
- the clamping head 7 is fastened to the base 10 in the same way and moreover at its opposite end via a belt drive 11 connected to an electric motor 12, which is above the water surface 1 is arranged.
- the clamping head 7 is also designed as quill and in the tube axis direction, which corresponds to the connection axis between the clamping heads 6 and 7, displaceable, so that the workpiece 5 by moving the sleeve from the workpiece holder can be removed or clamped in it.
- Fig. 1 shows that the workpiece holder with the exception of the uppermost areas of Clamping heads 6 and 7 and a part of the belt drive 11 and the electric motor 12 is arranged in the water bath 2. This ensures that the pipe section. 5 so immersed in the water bath 2 is that the water surface 1 just below the highest point of the inner shell of the pipe section 5 is located, so the uppermost part of Pipe piece wall just protrudes from the water bath 2.
- the water jet 4 thus hits, if he a section through the upper in the figures Area of the wall of the pipe section 5 generated immediately after passing through the Wall on the water surface 1 and can thus more areas of the pipe section 5 does not affect further.
- the water jet head 3 is further moved in this case two-dimensionally, and Although on the one hand in the horizontal direction in Fig. 1 and the other perpendicular on the drawing plane of Fig. 1. Further, the pipe section 5 via the electric motor 12, the belt drive 11 and the clamping heads 6 and 7 rotatable so that a total of in the pipe wall also complex lines can be cut. Of course you can the water jet head 3 also in different directions, in particular one horizontal axis in Fig. 1, be tilted to influence the cutting inclination.
- the clamping heads 6 and 7 are designed so that between the conical engaging heads 6 and 7 on the one hand and the pipe section 5 and generally the workpiece on the other hand, sufficient spaces remain so that the water level 1 within the workpiece to the water level 1 outside match.
- the water jet 4 namely water is introduced into the interior, which accordingly must be able to run to the outside.
- channels for example by grooves in the conical engagement surfaces.
- the invention thus offers significant advantages by the water jet machining complex workpieces, in particular of hollow bodies, without impairment other workpiece parts than intended intended. It opens up to the very simple one and advantageous methods of water jet machining, in particular of Water jet cutting, meaningful other applications, such as cutting to length of pipes or cutting parts of pipe walls.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04100250A EP1557240A1 (fr) | 2004-01-23 | 2004-01-23 | Procédé et dispositif pour le découpage au jet d'eau |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04100250A EP1557240A1 (fr) | 2004-01-23 | 2004-01-23 | Procédé et dispositif pour le découpage au jet d'eau |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1557240A1 true EP1557240A1 (fr) | 2005-07-27 |
Family
ID=34626536
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04100250A Withdrawn EP1557240A1 (fr) | 2004-01-23 | 2004-01-23 | Procédé et dispositif pour le découpage au jet d'eau |
Country Status (1)
Country | Link |
---|---|
EP (1) | EP1557240A1 (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101224588B (zh) * | 2008-02-18 | 2010-07-21 | 陈波 | 基于丝杆传动的大行程水刀 |
EP2123788A3 (fr) * | 2008-04-29 | 2010-10-27 | Huffman Corporation | Procédé et dispositif de décapage de trous dans un substrat métallique |
US9278462B2 (en) | 2013-11-20 | 2016-03-08 | General Electric Company | Backstrike protection during machining of cooling features |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4604923A (en) * | 1983-01-18 | 1986-08-12 | Index-Werke Komm. Ges. Hahn & Tessky | Method of machining a workpiece between centers and a clamping device for performing this method |
US5279075A (en) * | 1992-02-29 | 1994-01-18 | Rolls-Royce Plc | Abrasive fluid jet machining |
US5512007A (en) * | 1993-09-30 | 1996-04-30 | Astro Machine Works, Inc. | System and process for manufacturing a flexible connection in a hollow metal device |
DE19711512C1 (de) * | 1997-03-19 | 1998-10-15 | Foracon Maschinen Und Anlagenb | Wasserstrahlschneiden von Ausschnitten in Rohrwandungen |
-
2004
- 2004-01-23 EP EP04100250A patent/EP1557240A1/fr not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4604923A (en) * | 1983-01-18 | 1986-08-12 | Index-Werke Komm. Ges. Hahn & Tessky | Method of machining a workpiece between centers and a clamping device for performing this method |
US5279075A (en) * | 1992-02-29 | 1994-01-18 | Rolls-Royce Plc | Abrasive fluid jet machining |
US5512007A (en) * | 1993-09-30 | 1996-04-30 | Astro Machine Works, Inc. | System and process for manufacturing a flexible connection in a hollow metal device |
DE19711512C1 (de) * | 1997-03-19 | 1998-10-15 | Foracon Maschinen Und Anlagenb | Wasserstrahlschneiden von Ausschnitten in Rohrwandungen |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101224588B (zh) * | 2008-02-18 | 2010-07-21 | 陈波 | 基于丝杆传动的大行程水刀 |
EP2123788A3 (fr) * | 2008-04-29 | 2010-10-27 | Huffman Corporation | Procédé et dispositif de décapage de trous dans un substrat métallique |
US8380338B2 (en) | 2008-04-29 | 2013-02-19 | Huffman Corporation | Method and apparatus for stripping holes in a metal substrate |
US9278462B2 (en) | 2013-11-20 | 2016-03-08 | General Electric Company | Backstrike protection during machining of cooling features |
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