EP2723508B1 - Dispositif pour le traitement des pieces d'ouvrage - Google Patents

Dispositif pour le traitement des pieces d'ouvrage Download PDF

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Publication number
EP2723508B1
EP2723508B1 EP12727381.1A EP12727381A EP2723508B1 EP 2723508 B1 EP2723508 B1 EP 2723508B1 EP 12727381 A EP12727381 A EP 12727381A EP 2723508 B1 EP2723508 B1 EP 2723508B1
Authority
EP
European Patent Office
Prior art keywords
nozzle
jet
pressure liquid
pressure
liquid jet
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.)
Active
Application number
EP12727381.1A
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German (de)
English (en)
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EP2723508A1 (fr
Inventor
Hermann-Josef David
Egon KÄSKE
Norbert Klinkhammer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ecoclean GmbH
Original Assignee
Duerr Ecoclean GmbH
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Publication date
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Publication of EP2723508A1 publication Critical patent/EP2723508A1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/02—Cleaning by the force of jets or sprays
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/04—Cleaning involving contact with liquid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/04—Cleaning involving contact with liquid
    • B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
    • B08B3/102—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration with means for agitating the liquid
    • 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
    • B24C1/08—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for polishing surfaces, e.g. smoothing a surface by making use of liquid-borne abrasives
    • B24C1/083—Deburring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B5/00—Cleaning by methods involving the use of air flow or gas flow
    • B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities

Definitions

  • the invention relates to a device for treating workpieces with a nozzle module having a module body with a first nozzle chamber extending in a longitudinal direction along an axis, the at least one nozzle mouth penetrated by the axis with a nozzle opening for generating at least one in the direction of the axis workpiece high pressure liquid jet, the module body including a longitudinally extended nozzle chamber, and means for supplying high pressure liquid into the first nozzle chamber to produce the at least one high pressure liquid jet.
  • a device of the type mentioned is from the WO 2006/119923 A1 known.
  • the invention also relates to a method for deburring and a method for cleaning a workpiece.
  • high-pressure water jet technology is used for deburring workpieces.
  • unwanted burrs on a workpiece are subjected to a high-pressure liquid jet flowed on and separated from the workpiece due to the momentum transfer.
  • the contamination of workpieces can be eliminated by flood washing.
  • flood washing the workpieces are completely or partially immersed in a fluid bath.
  • This fluid bath is e.g. a liquid at standard conditions and largely dormant cleaning medium.
  • the workpieces are acted upon by nozzles with a fluid jet, which has a large mass flow.
  • Nozzles for flood washing are generally operated wholly or partially below the liquid level of the fluid bath, in which a corresponding workpiece is immersed.
  • nozzle modules are used, which can provide a fluid jet with a large flow cross-section. With the fluid jet, a large amount of fluid per unit of time is transported here. This amount of fluid can, for. B. between 0.5 l / s and 50 l / s at flow rates between 10 m / s up to 200 m / s. This ensures that the liquid that surrounds the workpiece in the fluid bath, is quickly replaced and thus a great cleaning effect is achieved.
  • the object of the invention is to provide a device for the treatment of workpieces, with which can be performed by setting different operating conditions different forms of treatment for workpieces, such as cleaning or deburring.
  • high-pressure liquid jet is understood to mean a liquid jet which is produced by means of a liquid guided through a nozzle opening, which is subjected to an overpressure relative to the environment of at least 10 bar and more.
  • low-pressure fluid jet refers to a jet of fluid produced by means of a gaseous or liquid fluid guided through a nozzle orifice, which is subjected to a lower overpressure than the liquid for the high-pressure liquid jet.
  • the directed onto the workpiece high-pressure liquid jet can be a liquid jet with a constant flow of liquid.
  • the liquid jet may also be a liquid jet with a liquid flow which pulsates regularly or irregularly.
  • the fluid from the at least one other nozzle chamber can be provided with uniform or non-uniform pulses.
  • the fluid from the at least one further nozzle chamber serves for influencing, in particular for shaping and / or steering and / or shielding the liquid jet.
  • Systems according to the invention preferably make it possible to adjust the flow velocity v s within a certain range.
  • the invention is based on the finding that the deburring action of a high-pressure liquid jet, which is directed towards a liquid bath, for B. is directed to a cleaning bath immersed workpiece, can be increased by a jet or stream of gaseous fluid is guided along the liquid jet, which reduces the frictional forces for the liquid jet in the cleaning bath.
  • the invention is based on the recognition that a liquid jet or liquid stream, which runs along a high-pressure liquid jet, can be accelerated in a cleaning bath due to the Venturi effect by the high-pressure liquid jet so that it can be increased in a cleaning bath with the liquid jet to the workpiece guided liquid mass flow.
  • a constant or pulsating high-pressure liquid jet which is generated with a nozzle opening in a nozzle chamber of a nozzle module for the deburring of workpieces in a liquid bath, in particular a cleaning liquid, with a (further) beam gaseous fluid, so that the high pressure liquid jet is slowed down in the liquid bath less.
  • a further liquid jet or liquid flow can be accelerated so that the liquid mass flow guided to the workpiece is thereby increased.
  • the further jet has an annular cross-section, so that the high-pressure jet can be surrounded by the further jet at least in sections and shielded from surrounding fluid transversely to the flow direction.
  • the frictional forces for the high-pressure liquid jet in a liquid medium can be kept particularly low.
  • This measure not only increases the range of a high-pressure liquid jet in cleaning medium, this measure also improves the acceleration capacity of the high-pressure liquid jet for a liquid jet or liquid flow from the at least one further nozzle chamber.
  • the fluid jet or liquid stream from the further nozzle chamber surrounding the high-pressure fluid jet in a cleaning bath the frictional forces between the high-pressure liquid jet and a cleaning fluid can be reduced. Due to the In this case, the large interface between the high-pressure fluid jet and the further fluid jet, the high-pressure fluid jet can develop a large acceleration effect for the further fluid jet. It is possible that the temperature of the fluid for the high-pressure liquid jet and the temperature of the medium for the further fluid jet are different.
  • An idea of the invention is also to provide in the module body a displaceability of a nozzle opening of the first nozzle chamber relative to the nozzle opening of the further nozzle chamber (or vice versa).
  • the fluid jets can be coordinated.
  • the influence of the (second) fluid jet from the additional nozzle chamber on the (first) high-pressure jet can be adjusted as required by a position changeable in the flow direction of at least one of the nozzle openings.
  • the shape and behavior of the (first) high-pressure jet can be influenced as required not only by a pressure change in the fluid and selection of the fluid, but also by the relative position of the second fluid jet.
  • the at least one nozzle opening of the first nozzle chamber is formed in a rotatable nozzle mouth, which can be rotated about an axis of rotation parallel to the jet axis of the nozzle mouth. This measure makes it possible for large workpiece surfaces to be acted upon by a high-pressure fluid jet by rotating the nozzle mouth about the axis of rotation.
  • the nozzle mouth can be positioned in the module body in such a way that to the jet axis of the nozzle mouth vertical plane with the nozzle opening in the orientation of the flow direction of an emerging from the nozzle opening fluid jet before, in and / or behind a plane perpendicular to the jet axis of the nozzle mouth with the at least one nozzle opening of the other nozzle chamber.
  • the at least one nozzle opening of the first nozzle chamber is desirably made with a circular shape or a lens shape or a quadrangular shape or a hexagon shape or a star shape.
  • a first (first) high-pressure fluid jet can be produced with a cross section which is particularly suitable for deburring workpieces. It is particularly advantageous to provide the nozzle opening in a diaphragm which is arranged in the region of the nozzle mouth and can be exchanged there.
  • the first nozzle chamber may also have a plurality of nozzle openings for generating a plurality of fluid jets directed at the workpiece.
  • the at least one first nozzle chamber preferably has a wall which is at least partially extended through the further nozzle chamber.
  • the at least one nozzle opening of the at least one further nozzle chamber has the shape of a ring or a ring segment.
  • the at least one further nozzle chamber may have a plurality of nozzle openings for generating a plurality of further fluid streams running along the first fluid jet.
  • the plurality of nozzle openings for generating a plurality of further fluid jets at least partially adjacent to the first fluid jet are preferably designed as ring segments or circular areas arranged around a common center.
  • the nozzle module may be used in a cleaning device for cleaning and / or deburring workpieces having a cleaning container filled with a liquid cleaning medium and including means for supplying high pressure fluid into the at least one first nozzle chamber.
  • the cleaning device also has a device for selectively supplying low-pressure liquid or gaseous fluid into the at least one further nozzle chamber.
  • the at least one first nozzle chamber in the nozzle module is supplied with high-pressure liquid P F , in particular liquid, for which the absolute pressure P F in the nozzle chamber in the range 30 bar ⁇ P F ⁇ 3000 bar.
  • the at least one additional nozzle chamber is supplied with gaseous fluid at a (over atmospheric pressure increased) pressure P G , for which preferably applies: 0.01 bar ⁇ P G ⁇ 50 bar.
  • the at least one first nozzle chamber is supplied with high-pressure fluid P F , preferably liquid which is subjected to high pressure in the range 50 bar ⁇ P F ⁇ 3000 bar, and the at least one further nozzle chamber is filled with cleaning fluid is fed, which is under a low pressure P N , wherein the low pressure P N favorably corresponds to the following absolute pressure value: 1.0 bar ⁇ P N ⁇ 30 bar.
  • the nozzle modules are operated in particular with a cleaning fluid (for example water) which is liquid under normal conditions.
  • a cleaning fluid for example water
  • this cleaning fluid contains cleaning additives, for.
  • surfactants, bases or the like It preferably has a temperature which is between 30 ° C and 120 ° C.
  • the Fig. 1 shows a cleaning device 100 for flood washing a workpiece 102 in a liquid bath 104.
  • the cleaning device 100 is a treatment device for workpieces 102 in the form of cylinder heads made of aluminum, in which a plurality of bores 106 are formed. For the introduction of the holes, a workpiece 102 was machined in a machining center. In the cleaning device 100, a workpiece 102 can be freed not only of impurities in the form of coolants and chips.
  • the cleaning device 100 also enables deburring of a workpiece, ie the removal of the burrs 108 on the workpiece 102, which result from the machining in the machining center.
  • the liquid bath 104 is located in a liquid container 110.
  • the handling robot 112 can pick up a workpiece 102 in the cleaning device and manipulate it with three translational and three rotational degrees of freedom of movement in the liquid bath 104.
  • the cleaning device 100 includes a nozzle module 114.
  • the nozzle module 114 has a module body 116 with a nozzle body 118, in which a nozzle chamber 120 is formed with a wall 121.
  • a further nozzle body 122 In the module body 116 there is a further nozzle body 122 with a further nozzle chamber 124.
  • the nozzle body 122 protrudes into the liquid container 110.
  • the nozzle body 118 is received in the nozzle body 122.
  • the nozzle body 118 is guided through the wall 126 of the nozzle body 122.
  • the nozzle chamber 120 is connected to a device 128 for providing high-pressure liquid 130.
  • the device 128 has a pressure vessel 132.
  • the pressure vessel 132 is connected via a proportional valve 134 and a hose 136 to a pipe 138 which opens into the nozzle chamber 120.
  • the device 128 includes a pump 140. Via the pump 140, the pressure vessel 132 can be charged with liquid from a fluid reservoir 142.
  • the nozzle body 118 has a nozzle mouth 144.
  • a nozzle opening 146 is formed in the nozzle mouth 144.
  • the nozzle opening 146 of the nozzle body 118 and the nozzle opening 172 of the nozzle body 122 are arranged coaxially with each other.
  • a high pressure fluid jet 148 may be provided through the nozzle port 146.
  • the nozzle chamber 124 in the nozzle module 114 is connected via a line system 150 to a device 152 for the supply of pressurized fluid and to a device 154 for the provision of pressurized gaseous fluid 155.
  • the means 152 for providing pressurized fluid 157 contains a pressure vessel 156.
  • the pressure vessel 156 can be connected to the nozzle chamber 124 via a proportional valve 158.
  • the device 152 also contains a pump 160. By means of the pump 160, the pressure vessel 156 can be charged with fluid from a fluid reservoir 162.
  • the pressurized gaseous fluid providing means 154 has a pressure vessel 164.
  • the pressure vessel 164 may be pressurized with a compressor 166.
  • a proportional valve 168 In the conduit system 150, there is a proportional valve 168. When the proportional valve 168 is opened, the nozzle chamber 124 may be fed with gaseous fluid.
  • the nozzle chamber 124 in the nozzle body 122 has a nozzle mouth 170 with an axis 171 and a nozzle opening 172.
  • the nozzle mouth 144 has an axis 145.
  • the axis 171 of the nozzle mouth 170 is aligned with the axis 145 of the nozzle mouth 144.
  • the nozzle opening 172 is preferably circular.
  • the nozzle opening 172 has an opening diameter D.
  • for this opening diameter D 10 mm ⁇ D ⁇ 20 mm.
  • the nozzle body 118 with the nozzle chamber 120 can be displaced in the nozzle module 116 in accordance with the double arrow 174.
  • the nozzle module 116 has an electric drive 176 with an electric motor 178.
  • the electric motor 178 acts on a drive pinion 180, which meshes with a toothed rack 182 formed on the pipe 138.
  • a pneumatic or hydraulic drive can also be used. It is favorable, e.g. a hydraulic drive that can be operated with cleaning medium.
  • the cleaning device 100 can be operated in an operating mode for cleaning the workpiece 102, and in another operating mode for deburring the workpiece 102.
  • the nozzle chamber 120 in the nozzle body 118 is supplied with liquid from the device for supplying high-pressure liquid 130 at a liquid pressure P F , preferably in a range 50 bar ⁇ P F ⁇ 3000 bar.
  • the liquid is preferably a cleaning medium, in particular water. In the case of the liquid but it may be z. B. also be emulsion or oil.
  • pressurized gaseous fluid from the device 154 is fed into the nozzle chamber 124 in the nozzle body 122 of the nozzle module 114 at an overpressure P G with respect to the atmospheric pressure, for which preferably: 0.01 bar ⁇ P G ⁇ 3000 bar.
  • gaseous fluid according to the invention z.
  • air another gas mixture or steam also proposed.
  • the high-pressure liquid jet 148 flowing from the nozzle opening 146 when the nozzle chamber 120 is pressurized with high-pressure liquid is then filled with an annular low-pressure fluid stream 184 of gaseous fluid surrounded by the nozzle chamber 124.
  • the low pressure fluid stream 184 travels along the high pressure liquid jet 148.
  • the low pressure fluid stream 184 of gaseous fluid shields the high pressure liquid jet 148 in the liquid bath 104 from the liquid in the liquid container 110. With the low pressure fluid stream 184 of gaseous fluid It is achieved that the high-pressure liquid jet 148 is exposed in the liquid bath 104 reduced frictional forces.
  • the kinetic energy of the liquid in the high-pressure liquid jet 148 is available as far as possible for deburring a workpiece 102 and is not already delivered to the liquid bath 104 between the nozzle opening 146 of the nozzle chamber 120 and the workpiece 102.
  • the shielding of the high-pressure liquid jet 148 by means of an annular flow jet 184 is particularly effective in that the distance A of the plane 147 of the nozzle opening 146 from the nozzle mouth 170 of the nozzle body 122 corresponds approximately to the opening diameter D of the nozzle opening 172.
  • the distance A satisfies the following relation: 10 mm ⁇ A ⁇ 20 mm.
  • the nozzle chamber 124 is not acted upon by gaseous fluid but by pressure fluid from the pressure vessel 156.
  • the result is that the pressurized liquid exits the pressure vessel 156 with a liquid low pressure annular fluid jet 184 'from the nozzle orifice 146 of the nozzle chamber 120, which extends in the liquid bath 104 along the high pressure liquid jet 148.
  • the ring beam 184 ' is applied to the high-pressure liquid jet 148 and surrounds it.
  • the annular low pressure fluid jet 184 'of fluid is thus accelerated by the high pressure fluid jet 148. This allows the workpiece 102 in the liquid bath 104 to be charged with a large liquid flow. As a result, dirt particles, impurities and chips adhering to the surface of the workpiece, after a short time in the liquid bath 104 registered.
  • a particularly efficient acceleration of the annular jet 184 'via the high-pressure liquid jet 148 can be achieved by displacing the nozzle body 118 with the electric drive 176 in the direction 186 of the flow of the high-pressure liquid jet 148 such that the nozzle opening 146 is located on the high-pressure liquid jet 148 to the workpiece 102 facing side of the nozzle module 116 in front of the jet axis 171 of the nozzle mouth 170 vertical plane 173 with the nozzle opening 172 of the nozzle chamber 124 is located.
  • the liquid bath 104 in the cleaning device 100 is advantageously made of hot water, which optionally contains cleaning additives, such as cleaning additives in the form of alkali metal hydroxides, silicates, phosphates, borates and carbonates or cleaning additives in the form of nonionic surfactants or cationic surfactants.
  • cleaning additives such as cleaning additives in the form of alkali metal hydroxides, silicates, phosphates, borates and carbonates or cleaning additives in the form of nonionic surfactants or cationic surfactants.
  • the high-pressure liquid jet 148 in the cleaning device is preferably produced with water, water with corrosive and cleaning additives, with emulsion, or with oil.
  • the ring stream or ring stream 184 in this case preferably consists of water, of water with corrosion and cleaning additives or of emulsion.
  • the Fig. 2 shows a further cleaning device 200 for the flood washing of a workpiece 202.
  • a further cleaning device 200 for the flood washing of a workpiece 202.
  • the elements of the Fig. 2 with elements in the Fig. 1 are identical, these are there with respect to the Fig. 1 indicated by the number 100 increased numbers as reference numerals.
  • the nozzle module 216 in the cleaning device 200 has a nozzle body 218 with a nozzle mouth 244. Unlike the nozzle module 114 in the cleaning device 100, the axis 245 of the nozzle mouth 244 of the nozzle chamber 220 with respect to the axis 271 of the nozzle mouth 270 Nozzle chamber 224 arranged offset.
  • the nozzle body 218 of the nozzle module 214 is rotatably mounted on the nozzle body 222.
  • the nozzle module 216 has a drive 217 with an electric motor 219. By means of the drive 217, the nozzle body 218 can be rotated according to the double arrow 269 about the axis 271 of the nozzle mouth 270 of the nozzle chamber 224.
  • the nozzle module 216 has a drive 276 'with a pneumatic cylinder 278', which allows a linear displacement of the nozzle body 218 in the nozzle module 114 corresponding to the double arrow 274.
  • the cleaning device 200 can be operated both in a cleaning mode of operation and in a deburring operation mode of a workpiece 202.
  • a high-pressure liquid jet 248 from the nozzle chamber 220 to wobble on a workpiece 202.
  • the high-pressure liquid jet 248 can act on a larger workpiece surface.
  • the Fig. 3 shows a third nozzle module 314 for use in a treatment device for workpieces, for example in a cleaning device described above in a longitudinal section.
  • the nozzle module 314 has a tubular nozzle body 322.
  • a further tubular nozzle body 318 is arranged with a nozzle chamber 320.
  • the nozzle body 318 has a nozzle mouthpiece 319 with a nozzle mouth 344.
  • the nozzle mouth 344 has an axis 345 that of the axis 347 of the tubular Nozzle body 318 corresponds.
  • the nozzle body 318 is arranged coaxially with the nozzle body 322.
  • the axis 349 of the nozzle body 322 is aligned with the axis 347 of the tubular nozzle body 318.
  • the nozzle body 322 has a nozzle chamber 324, which are acted upon via a connecting piece 323 either with gaseous fluid or with liquid can.
  • the nozzle body 318 is received in the nozzle body 322.
  • the nozzle body 318 may be displaced according to the double arrow 374 in the nozzle body 322.
  • Fig. 4 shows a cross section of the nozzle module 314 along the line IV-IV Fig. 3 ,
  • the nozzle chamber 324 in the nozzle body 322 has an annular cross section.
  • the nozzle body 318 is configured to generate a high pressure liquid jet 348 that exits the nozzle chamber 320 through the nozzle opening 346.
  • a high-pressure liquid jet 348 emerging from the nozzle opening 346 may exit at the nozzle module 314 as with the nozzle modules 114 Fig. 1 and 214 off Fig. 2 optionally with a low pressure fluid stream 384, 384 'of pressurized gas, eg, compressed air, or fluid pressurized, exiting the orifice 370 of the nozzle chamber 324.
  • High pressure liquid jet 348 is then enveloped by fluid stream 384, 384 '.
  • the fluid stream 384, 384 ' has an annular cross-section. It runs along the high-pressure liquid jet 348. As the distance from the nozzle opening 372 increases, the low-pressure fluid stream 384, 384 'bears against a high-pressure liquid jet 348 issuing from the nozzle opening 346.
  • FIG. 12 shows the nozzle module 314 in a setting in which the nozzle opening 346 in the tubular nozzle body 318 is recessed with respect to the end face 371 of the tubular nozzle body 322.
  • the nozzle module 314 is shown in a setting in which the nozzle opening 346 of the nozzle chamber 320 lies in the plane 373 of the end face 371 of the nozzle body 322.
  • the Fig. 6 shows the nozzle module 314 in one Setting in which the nozzle opening 346 of the nozzle chamber 320 is positioned on the side facing the workpiece in the intended use of the nozzle module 314 in front of the plane 373 of the end face 371 of the tubular nozzle body 322.
  • the Fig. 7 shows a further nozzle module 414 for use in a treatment device for workpieces in a longitudinal section.
  • the nozzle module 414 has a tubular nozzle body 422.
  • a further tubular nozzle body 418 is arranged with a nozzle chamber 420.
  • the nozzle body 418 has a nozzle mouth 419 with a nozzle mouth 444.
  • the nozzle mouth 444 has an axis 445 which corresponds to the axis 447 of the tubular nozzle body 418.
  • the nozzle body 418 is arranged coaxially with the nozzle body 422. That is, the axis 449 of the nozzle body 422 is aligned with the axis 447 of the tubular nozzle body 418.
  • the nozzle body 422 has a nozzle chamber 424, which can be acted upon via a connection piece 423 either with gaseous fluid or with liquid.
  • the nozzle body 418 is received in the nozzle body 422 and supported at two spatially spaced bearings 423, 425.
  • the nozzle body 418 can be displaced according to the double arrow 474 in the nozzle body 422.
  • the Fig. 8 shows a cross section of the nozzle module 414 along the line VIII - VIII Fig. 7 ,
  • the nozzle chamber 424 in the nozzle body 422 has an annular cross section.
  • the bearing 425 in the nozzle chamber 422 is a nozzle mouthpiece with a plurality of nozzle openings 470, 470 ', 470 "....
  • the nozzle openings 470, 470', 470” ... have an annular gap geometry.
  • the nozzle body 418 is linearly movably guided and supported at the bearing points 423, 425.
  • the nozzle body 418 is configured to generate a high pressure liquid jet 448 that exits the nozzle chamber 420 through the nozzle opening 446.
  • the bearings 423, 425 for the nozzle body 418th cause the nozzle mouth 444 with the nozzle opening 446 does not move automatically when the nozzle chamber 420 is subjected to high pressures.
  • a high-pressure liquid jet 448 emerging from the nozzle opening 446 may exit at the nozzle module 414 as with the nozzle modules 114 Fig. 1 and 214 off Fig. 2 optionally with fluid streams 484, 485, 484 ', 485' from pressurized gas, eg compressed air, or from pressurized liquid, which then exit from the openings 470, 470 ', 470 "of the nozzle chamber 424.
  • the fluid streams 484, 485, 484 ', 485' then run along the liquid jet 448. With an increasing distance from the nozzle openings 470, 470 ', 470 "the fluid streams 484, 485, 484', 485 'are then evenly distributed at one Finally, in a section spaced from the nozzle orifices 470, 470 ', 470 "and the nozzle orifice 446, the fluid streams 484, 485, 484', 485 'surround the high pressure liquid jet 448 due to jet expansion ,
  • the Fig. 9 shows another nozzle module 514 in a longitudinal section.
  • the nozzle module 515 is sectioned along the line IX-IX Fig. 9 shown.
  • the nozzle module 514 has a tubular nozzle body 522.
  • the structure of the nozzle module 514 largely corresponds to the basis of FIGS. 7 and 8 explained structure of the nozzle module 414. Elements in the FIGS. 9 and 10 that are the elements of FIGS. 7 and 8 Functionally correspond, therefore, there are marked with numbers increased by 100 numbers as reference numerals.
  • the nozzle body 522 in the nozzle module 514 has a nozzle tip 525 with a plurality of nozzle openings 570, 570 ', 570 ", ... in the form of holes with a circular cross section. 570 "... are arranged on an imaginary circular line 571, which is coaxial with the axis 544 of the nozzle mouth 548.
  • the nozzle body 518 is linearly movable in the nozzle tip 525 of the nozzle body 522 guided. In the nozzle module 514, the nozzle body 518 is thus supported at two bearing points 523 and 525.
  • the Fig. 11 shows another nozzle module 614 in a longitudinal section.
  • the nozzle module 614 is sectioned along the line XI-XI Fig. 11 shown.
  • the nozzle module 614 has a tubular nozzle body 622.
  • the structure of the nozzle module 614 largely corresponds to that of FIGS. 7 and 8 explained structure of the nozzle module 414.
  • the nozzle body 622 in the nozzle module 614 has a nozzle mouthpiece 625 with a plurality of nozzle openings 670, 670 ', 670 “, ... in the form of holes with a circular cross section. 670 "... are arranged on an imaginary circular line 671, which is coaxial with the axis 644 of the nozzle mouth 648.
  • the nozzle tip 625 has the outer contour 627 of a truncated pyramid. This ensures that a medium flowing from the nozzle openings 670, 670 ', 670 ", ...
  • the Fig. 13 shows a nozzle module 714 in a longitudinal section.
  • the nozzle module 714 is sectioned along the line XIII-XIII Fig. 13 shown.
  • the nozzle module 714 has a tubular nozzle body 722.
  • the structure of the nozzle module 714 largely corresponds to based on FIGS. 7 and 8 explained structure of the nozzle module 414. Elements in the FIGS. 13 and 14 that are the elements of FIGS. 7 and 8 Functionally correspond, therefore, there are marked with numbers increased by 300 numbers as reference numerals.
  • the nozzle body 718 in the nozzle module 714 has a nozzle tip 719 with a plurality of nozzle openings 746, 746 ', 746 "in the form of holes with a circular cross-section
  • the nozzle openings 746, 746', 746" are arranged on an imaginary circular line 771 which is coaxial with the axis 747 of the nozzle body 718 and the axis 749 of the nozzle body 722.
  • the nozzle module thus makes it possible to apply a comparatively large workpiece surface to a high-pressure liquid jet or to a plurality of high-pressure liquid jets.
  • the Fig. 15 shows a nozzle module 814 in a longitudinal section.
  • the nozzle module 814 is sectioned along the line XV-XV Fig. 15 shown.
  • the nozzle module 814 has a tubular nozzle body 822.
  • the structure of the nozzle module 814 largely corresponds to that of FIGS. 7 and 8 explained structure of the nozzle module 414.
  • the nozzle body 818 with the nozzle tip 819 in the nozzle module 814 has an axis 847 which is offset from the axis 849 of the tubular nozzle body 822.
  • a high pressure liquid jet 848 may be created that is surrounded in a liquid bath far into the fluid bath by an air cushion created with compressed air injected into the nozzle chamber 824.
  • the Fig. 17 shows different nozzle mouthpieces for generating a high-pressure liquid jet in a nozzle module described above.
  • the nozzle mouthpiece 919 has a nozzle mouth formed as a bore hole with a circular nozzle opening 921. Through the nozzle mouthpiece 919, a high-pressure liquid stream having a circular jet cross-section can be produced in a nozzle module.
  • the nozzle tip 929 has a nozzle mouth 931 with a lenticular cross-section.
  • a high-pressure liquid jet having a flattened cross-section can be produced.
  • Such a high-pressure liquid jet allows the machining of a workpiece with a wide processing track when the workpiece is moved transversely to the high-pressure liquid jet during processing.
  • the nozzle mouth 939 has a nozzle mouth 941 with a quadrangular cross section. With the nozzle tip 939, a high-pressure liquid jet with a quadrangular cross-section can be produced.
  • the nozzle mouth 949 has a nozzle mouth 951 with a hexagonal cross section. With the nozzle tip 949, a high-pressure liquid jet with an edge cross-section can be produced.
  • the nozzle mouth 959 has a nozzle mouth 961 with a star-shaped cross-section. With the nozzle mouthpiece 959, a high-pressure liquid jet having a star-shaped cross-section can be produced.
  • a device 100, 200 for treating, in particular for cleaning and / or deburring workpieces 102, 202 contains a nozzle module 114, 214 which has a module body 116, 216 with a nozzle chamber 120, 220.
  • the nozzle chamber 120, 220 has at least one nozzle opening 146, 246 for generating at least one high-pressure liquid jet 148, 248 directed onto a workpiece 102, 202.
  • the module body 116, 216 includes a further nozzle chamber 124, 224, the at least one nozzle opening 172, 272 for generating at least one, at least partially along the high-pressure liquid jet 148, 248 extending and applied to this low-pressure fluid jet 184, 184 ', 284, 284' has.
  • a means 128, 228 for feeding high pressure liquid 130, 230 into the one nozzle chamber 120, 220 for producing the at least one high pressure liquid jet 148, 248 directed to the workpiece 102, 202.
  • the apparatus includes means 154, 254 for selectively supplying low pressure liquid 157 or gaseous fluid 155 into the further nozzle chamber 124, 224.

Claims (15)

  1. Dispositif (100, 200) pour le traitement de pièces d'ouvrage (102, 202),
    avec un module de buse (114, 214), qui comporte un corps de module (116, 216) avec une première chambre de buse (120, 220) étendue le long d'un premier axe (171, 271) dans une direction longitudinale, qui présente au moins un ajutage de buse (144, 244) traversé par le premier axe (171, 271) avec une ouverture de buse (146, 246) pour la production d'au moins un jet de liquide à haute pression (148, 248) dirigé dans la direction de l'axe vers une pièce d'ouvrage (102, 202), dans lequel le corps de module (116, 216) contient une autre chambre de buse (124, 224) étendue dans la direction longitudinale,
    avec un dispositif (128, 228) pour amener du liquide mis sous haute pression (130, 230) dans la première chambre de buse (120, 220) afin de produire ledit au moins un jet de liquide à haute pression (148, 248), caractérisé par
    un autre dispositif (154, 254) pour amener au choix un liquide mis sous basse pression (157) ou un fluide gazeux (155) dans l'autre chambre de buse (124), dans lequel
    l'autre chambre de buse (124, 224) comporte un ajutage de buse (170, 270) tourné vers la pièce d'ouvrage (102, 202) avec au moins une ouverture de buse (172, 272) traversée par le premier axe (171, 271) ou par un autre axe parallèle au premier axe (171, 271) pour la production d'au moins un jet de fluide à basse pression (184, 184') s'étendant au moins localement le long du jet de liquide à haute pression (148, 248) et appliqué sur celui-ci.
  2. Dispositif selon la revendication 1, caractérisé en ce que ladite au moins une ouverture de buse (172, 272) est disposée coaxialement au premier axe (171, 271) de la chambre de buse (120, 220), afin que ledit au moins un jet de fluide à basse pression (184, 184') enveloppe au moins localement ledit au moins un jet de liquide à haute pression (148, 248).
  3. Dispositif selon la revendication 1, caractérisé en ce qu'il est prévu plusieurs ouvertures de buse (470, 470', 470", 570, 570', 570", 670, 670', 670") disposées coaxialement au premier axe (171, 271) de la chambre de buse (120, 220) et traversées par un autre axe parallèle au premier axe (171, 271), afin de pouvoir produire plusieurs jets de fluide à basse pression (484, 485) s'étendant le long du jet de liquide à haute pression (148, 248).
  4. Dispositif selon la revendication 3, caractérisé en ce que ladite au moins une autre chambre de buse (624) est disposée dans un corps de buse (622), qui comporte un embout de buse (625) avec un contour extérieur décroissant, dans lequel les multiples ouvertures de buse (570, 570', 570") sont réalisées.
  5. Dispositif selon la revendication 3 ou 4, caractérisé en ce que les multiples ouvertures de buse pour produire plusieurs autres jets de fluide à basse pression (484, 485) appliqués au moins localement sur le jet de fluide à haute pression (484) sont réalisées sous forme de segments d'anneau (470, 470', 470") ou de faces circulaires (570, 570', 570"), disposés/disposées autour d'un centre commun (444, 544).
  6. Dispositif selon l'une quelconque des revendications 1 à 5, caractérisé en ce que ladite au moins une ouverture de buse (146, 246) servant pour la production d'un jet de liquide à haute pression (148, 248) est déplaçable dans le corps de module (116, 216).
  7. Dispositif selon l'une quelconque des revendications 1 à 6, caractérisé en ce que ladite au moins une ouverture de buse (146, 246) servant pour la production d'un jet de liquide à haute pression (148, 248) est formée dans un ajutage de buse (244) mobile en rotation, qui peut tourner autour d'un axe de rotation (271) de préférence parallèle à l'axe de jet (245) de l'ajutage de buse (244).
  8. Dispositif selon l'une quelconque des revendications 1 à 7, caractérisé en ce que ladite au moins une ouverture de buse (146, 246) servant pour la production d'un jet de liquide à haute pression (148, 248) est formée dans un ajutage de buse (144, 244) déplaçable linéairement, qui peut être déplacé le long d'un axe (171, 271) parallèle à l'axe de jet (145, 245) de l'ajutage de buse (144, 244).
  9. Dispositif selon la revendication 8, caractérisé en ce que l'ajutage de buse (144) peut être positionné dans le corps de module (116), de telle manière que le plan (147) perpendiculaire à l'axe de jet (171) de l'ajutage de buse (144) avec l'ouverture de buse (146) dans l'orientation de la direction d'écoulement d'un jet de liquide à haute pression (148) sortant de l'ouverture de buse (146) est situé devant et/ou dans et/ou derrière un plan (173) perpendiculaire à l'axe de jet (171) de l'ajutage de buse (144) avec ladite au moins une ouverture de buse (172) de l'autre chambre de buse (124).
  10. Dispositif selon l'une quelconque des revendications 1 à 9, caractérisé en ce que ladite au moins une ouverture de buse (146) servant pour la production d'un jet de liquide à haute pression (148) a une forme circulaire ou une forme lenticulaire ou une forme carrée ou une forme hexagonale ou une forme en étoile,
    et/ou
    en ce que la chambre de buse (720) comporte plusieurs ouvertures de buse (746, 746', 746") pour la production de plusieurs jets de liquide à haute pression dirigés vers la pièce d'ouvrage.
  11. Dispositif selon l'une quelconque des revendications 1 à 10, caractérisé en ce que la chambre de buse (120, 220) présente une paroi (121, 221) étendue au moins partiellement à travers l'autre chambre de buse (124, 224), et/ou en ce que ladite au moins une ouverture de buse (370, 470) pour la production dudit au moins un jet de fluide à basse pression (184, 184', 284, 284') s'étendant au moins localement le long du jet de liquide à haute pression (148, 248) et s'appliquant à celui-ci, présente la forme d'un anneau ou d'un segment d'anneau.
  12. Utilisation d'un dispositif réalisé selon l'une quelconque des revendications 1 à 11 pour le nettoyage et/ou l'ébavurage de pièces d'ouvrage (102, 202).
  13. Procédé d'ébavurage d'une pièce d'ouvrage (102, 202) avec un dispositif réalisé selon l'une quelconque des revendications 1 à 11, dans lequel on produit au moins un jet de liquide à haute pression (148, 248) sortant d'au moins une ouverture de buse (146, 246) d'une première chambre de buse (120, 220) et dirigé vers la pièce d'ouvrage (102, 103) et dans lequel on produit au moins un autre jet de fluide à basse pression (184, 184') en un fluide gazeux sortant d'au moins une ouverture de buse (172, 272) d'une autre chambre de buse (124, 224) et dirigé vers la pièce d'ouvrage (102, 103), en particulier en un fluide gazeux sous la forme d'air comprimé, qui s'étend le long du jet de liquide à haute pression (148, 248) et s'applique sur celui-ci et/ou enveloppe celui-ci au moins localement.
  14. Procédé de nettoyage d'une pièce d'ouvrage (102, 202) avec un dispositif réalisé selon l'une quelconque des revendications 1 à 11, dans lequel on produit au moins un jet de liquide à haute pression (148, 248) sortant d'au moins une ouverture de buse (146, 246) d'une première chambre de buse (120, 220) et dirigé vers la pièce d'ouvrage (102, 103) et dans lequel on produit au moins un autre jet de fluide à basse pression (184, 184') en un fluide liquide sous la forme d'un liquide de nettoyage sortant d'au moins une ouverture de buse (172, 272) d'une autre chambre de buse (124, 224) et dirigé vers la pièce d'ouvrage (102, 103), en particulier sous la forme d'eau mélangée à un additif de nettoyage, qui s'étend le long du jet de liquide à haute pression (148, 248) et s'applique sur celui-ci et/ou enveloppe celui-ci au moins localement.
  15. Procédé selon la revendication 13 ou 14, caractérisé en ce que l'on produit le jet de liquide à haute pression (148, 248) sous forme pulsée,
    et/ou
    en ce que l'on produit le jet de fluide à basse pression (184, 184') sous forme pulsée,
    et/ou
    en ce que l'on dirige ledit au moins un jet de liquide à haute pression (148, 248) vers une partie de la pièce d'ouvrage (102) immergée dans un fluide de nettoyage (104),
    et/ou
    en ce que l'on délivre le jet de fluide à basse pression (184, 184') à travers une ouverture de buse (370), qui est disposée en retrait par rapport à l'ouverture de buse pour le jet de liquide à haute pression (148, 248),
    et/ou
    en ce que le jet de fluide à basse pression (184, 184') délivré à une ouverture de buse présente à l'ouverture de buse une vitesse d'écoulement, qui est inférieure à la vitesse d'écoulement à l'ouverture de buse pour le jet de liquide à haute pression (148, 248).
EP12727381.1A 2011-06-24 2012-06-14 Dispositif pour le traitement des pieces d'ouvrage Active EP2723508B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011078076A DE102011078076A1 (de) 2011-06-24 2011-06-24 Düsenmodul und Reinigungsvorrichtung mit Düsenmodul
PCT/EP2012/061355 WO2012175407A1 (fr) 2011-06-24 2012-06-14 Dispositif pour traiter des pièces

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EP2723508A1 EP2723508A1 (fr) 2014-04-30
EP2723508B1 true EP2723508B1 (fr) 2016-09-14

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BR (1) BR112013027967A8 (fr)
DE (1) DE102011078076A1 (fr)
ES (1) ES2605820T3 (fr)
MX (1) MX370219B (fr)
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ES2605820T3 (es) 2017-03-16
EP2723508A1 (fr) 2014-04-30
RU2606430C2 (ru) 2017-01-10
RU2014102110A (ru) 2015-07-27
BR112013027967A2 (pt) 2017-01-17
MX2013014713A (es) 2014-01-31
BR112013027967A8 (pt) 2018-08-14
CN103619497A (zh) 2014-03-05
US20140109939A1 (en) 2014-04-24
WO2012175407A1 (fr) 2012-12-27
MX370219B (es) 2019-12-05
CN103619497B (zh) 2016-10-19
DE102011078076A1 (de) 2012-12-27

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