EP3251795A1 - Apparatus and method for working on mineral workpieces, surfaces and/or structure sections - Google Patents

Abstract

It is a device (2) and a method for abrasive action, for abrasive machining, cutting and / or removal of mineral workpieces, surfaces and / or construction sections, in particular of concrete, disclosed. The device (2) for abrasive action, for abrasive machining, for cutting and / or removal of mineral workpieces, surfaces and / or construction sections comprises at least one spray head (6) which has at least one outlet nozzle for the high-pressure fluid jet. Preferably, the spray head (6) is provided and / or adapted to perform oscillating movements. Furthermore, the device comprises a positioning device (4) for positioning the at least one spray head (6) in the region of a working plane (12). By means of the positioning device (4) the at least one spray head (6) with respect to the working plane (12) and / or spaced in at least two axes and approximately parallel to a surface of the respective workpiece, the surface to be machined and / or the construction section to be processed arranged movable or displaceable. The positioning device (4) has at least one first and at least one second rail element (8, 10). The at least one first rail element (8) is releasably fixable on the surface of the respective workpiece, the surface to be machined and / or the construction section to be processed or in the region of the working plane (12). The at least one second rail element (10) is arranged displaceably on the at least one first rail element (8). Furthermore, the at least one first rail element (8) and the at least one second rail element (10) are aligned at least approximately at right angles to one another. The at least one spray head (6) is arranged displaceably on the at least one second rail element (10).

Description

The present invention relates to a device for processing mineral workpieces, surfaces and / or construction sections, in particular of concrete, according to the features of independent claim 1. The invention also relates to a method for processing mineral workpieces, surfaces and / or construction sections with the features of the independent method claim 12.

In some cases, such as renovation or restoration work, it is necessary to remove certain areas of mineral workpieces, surfaces and / or construction sections, such as a concrete wall or concrete wall, to expose reinforcements or steel elements of the concrete wall or concrete wall. It is expedient not to damage the reinforcement or steel components by the removal of the concrete. Furthermore, it may be appropriate to only remove material to a designated depth. In other cases, it may be desirable to cut through the material, and optionally also any existing reinforcements or steel components as well. This may be necessary, for example, during demolition or demolition work. For this purpose, high-pressure water jet systems are often used, since in such systems large material thicknesses can be processed or severed. Furthermore, when removing or cutting concrete by means of high-pressure water jet usually clean surfaces or cut edges, and is formed by the use of a high-pressure water jet system hardly disturbing dust, steam or smoke.

From the DE 40 24 298 A1 a device for removing concrete by means of at least one high-pressure liquid jet is known. The device is provided for removing concrete on horizontal, vertical, and inclined concrete surfaces or components by means of a water jet. For this purpose, the device comprises a designed as a suction cup device part, a longitudinal slide and a cross slide. A jetted away from the cross slide Düsentragarm is attached at one end and carries at its other end a spray head whose axis is perpendicular to the plane formed by the directions of movement and having at its lower end a nozzle for the exit of the high-pressure water jet. In the spray head is formed at the nozzle opening channel which communicates via a flexible hose with a high-pressure water source. However, a disadvantage of this device is the freedom of movement of the spray head, which is severely limited by the longitudinal and transverse slides, and the resulting possible processing area of the spray head.

Furthermore, already from the EP 0 351 481 A1 a device for processing a running between the floor and ceiling wall surface known. For this purpose, the device has a guide rail, on which the upper end of the vertical frame is guided. The rail is fixed to the ceiling or the wall. The guide bed is placed on the floor. Between the end parts of the guide bed two guide rods are arranged, between which runs a lead screw. Along the two bars of the vertical frame, the milling chisel machine is movable up and down. This is done by a motor arranged below the frame with a gearbox. This drives a sprocket for a round link chain. Also in this device, the flexibility of motion of the milling and chiseling machine is strongly limited by the rails of the vertical frame. Another disadvantage is the complex structure of the guide rails and the drive device, and the associated complex installation and uninstallation of the device.

A primary object of the invention is thus to provide a device and a corresponding method for processing mineral workpieces, surfaces and / or construction sections, by means of which a large processing surface can be processed and which allows easy assembly and disassembly. Also, the device should be easy to handle and universally applicable. In addition, the method should be easy to carry out and universally applicable.

The above object of the invention is achieved by a device for processing mineral workpieces, surfaces and / or construction sections, which comprises the features of claim 1. Further advantageous embodiments are described by the subclaims.

In order to achieve the above-stated object, the present invention proposes a device for abrasive action, for abrasive machining, for cutting and / or removal of mineral workpieces, surfaces and / or construction sections, in particular of concrete, by means for generating at least one high-pressure fluid jet in front. The device for abrasive action, for abrasive Processing, for cutting and / or removal of mineral workpieces, surfaces and / or construction sections, comprises at least one spray head, which has at least one outlet nozzle for the high-pressure fluid jet. For example, the high pressure fluid jet may be a high pressure water jet or an abrasive high pressure water jet. Preferably, the spray head is provided and / or suitable for carrying out oscillating movements. Furthermore, the device comprises a positioning device for positioning the at least one spray head in the region of a working plane. By means of the positioning device, the at least one spray head with respect to the working plane and / or spaced in at least two axes and arranged to be movable or displaceable approximately parallel to a surface of the respective workpiece, the surface to be machined and / or the construction section to be processed.

The positioning device has at least a first and at least one second rail element. The at least one first rail element is detachably fixable to the surface of the respective workpiece, the surface to be machined and / or the construction section to be processed or in the region of the working plane. For this purpose, the at least one first rail element can have fastening elements to which the at least one first rail element can be releasably fixed in the region of the working plane by a connection, for example by a screw connection. The at least one second rail element is arranged displaceably on the at least one first rail element. Furthermore, the at least one first rail element and the at least one second rail element are aligned at least approximately at right angles to each other. Preferably, the at least one first rail element is at least approximately vertical and the at least one second rail element is aligned at least approximately horizontally. The at least one spray head is slidably disposed on the at least one second rail element. In a preferred embodiment of the invention, the at least one spray head and / or the at least one outlet nozzle is adjustable in inclination with respect to the working plane. In this case, for example, an inclination of 45 ° may be desired in order to be able to reach corner regions of the region of the working plane by means of the high-pressure fluid jet.

This embodiment of the device for cutting and / or removal of concrete allows easy assembly and disassembly of a machined mineral workpiece, a surface and / or a construction section. By attaching the device to the mineral workpiece to be machined, the surface and / or the construction section results in a flexibly adaptable range of Working level, which area can be processed by the emerging from the outlet nozzle of the spray head high-pressure fluid jet. A continuous implementation of the device due to a limited range of motion or work can be avoided.

In a preferred embodiment of the device for cutting and / or removing concrete, a first connection region for connecting a further first rail element is provided on at least one end of the at least one first rail element. Alternatively or additionally, a second connection region for connecting a further second rail element may also be provided on at least one end of the at least one second rail element. However, in each case connecting regions are preferably provided at the two ends of the at least one first rail element and at the two ends of the at least one second rail element, so that at both ends of the at least one first rail element and at both ends of the at least one second rail element respectively further first and second Rail elements can be attached. In this way, an enlarged area of the working plane can be formed, which can be processed with the emerging from the outlet nozzle of the spray head high-pressure fluid jet, without having to implement the entire device.

Furthermore, the first connection region can have at least one connection element for connecting a further first rail element to the at least one first rail element and / or the second connection region has at least one connection element for connecting a further second rail element to the at least one second rail element. The further first and second rail elements may likewise have first or second connection regions, which preferably likewise provide respective connection elements.

The connecting elements can be designed in different ways. Thus, it is conceivable that the connecting elements are designed such that only a simple screw is sufficient to connect a first rail element with a further first rail element or a second rail element with a further second rail element. Furthermore, in each case two connecting elements to be connected may have a shape such that they each form a counterpart with the connecting element to be connected. Thus, the connecting element of a first rail element may form a first counterpart, the Connecting element of another first rail element, a second counterpart. As a result, the first connecting element of the one first rail element and the second connecting element of the other first rail element can be connected to each other or stuck together, so preferably no tool or fastening means for producing a stable connection between the first connecting element and the second connecting element or a first rail element and the other rail element is necessary. The further first rail element can likewise be fixable detachably in the area of the working plane. In this embodiment variant of the connecting element, in particular the first end of a first rail element may have a connecting element designed as a first counterpart, and the second end of a first rail element may have a connecting element designed as a second counterpart. By such a uniform Ausgestaltungsweise several first rail elements can be easily connected to each other. The at least one second rail element and further second rail elements may have a design corresponding to the at least one first rail element or the further first rail elements of the second connection region or the connecting element.

In a preferred embodiment, the at least one second rail element is arranged to be vertically displaceable by means of a first feed unit on the at least one first rail element. Furthermore, the at least one spray head can be arranged to be horizontally displaceable by means of a second feed unit on the at least one second rail element. By means of a third feed unit, which is preferably provided on, on or in the region of the first feed unit, the at least one second rail element can be arranged to be horizontally displaceable relative to the at least one first rail element.

At least one first rail element may be arranged on the at least one first rail element which, in operative connection with a first drive means arranged on the first feed unit, effects an adjustment of the first feed unit with respect to the at least one first rail element. Furthermore, at least one second rack may be arranged on the at least one second rail element which, in operative connection with a second drive means arranged on the second feed unit, effects an adjustment of the second feed unit with respect to the at least one second rail element. At the third feed unit may be arranged a third drive means which, in operative connection with the second rack of the at least one second rail element causes a relative to the at least one first rail element horizontal adjustment of the at least one second rail element. Preferably, each of the first, the second and the third drive means is a gear, which first gear to the first rack, and which second and third gear is brought into operative connection with the second rack or can be brought.

Furthermore, a respective feed motor can be provided on the first feed unit and / or on the second feed unit and / or the third feed unit which effects a drive of the first drive means and / or the second drive means and / or the third drive means. It is also conceivable that only a single feed motor or two feed motors are provided for driving the first drive means and / or the second drive means and / or the third drive means. The feed motor or the feed motors may be, for example, an electrically or pneumatically driven drive motor.

Depending on the current situation and / or nature of the mineral workpiece, the surface and / or the construction section, a feed rate of the first, second and / or third feed unit may be variably adjustable. Preferably, a constant feed rate of the first, second and / or third feed unit is selectable. For this purpose, it is conceivable to propose, for example, several different feed rates, between which can be selected. Likewise, a continuous adjustment of the feed rates of the first, second and / or third feed unit is conceivable.

For example, it may be conceivable for a control unit or a control unit of the first, second and / or third feed unit to be coupled to an operating unit in order to be able to control the feed rate and / or the feed rates of the first, second and / or third feed unit. For this purpose, the use of a connected by a cable connection with the control unit or the control device of the first, second and / or third feed unit, possibly portable, operating unit is conceivable. Furthermore, the use of wireless operating systems is conceivable. Here, the operating unit, for example via Bluetooth, WLAN or comparable transmission method with the control unit or the Control device of the first, second and / or third feed unit to be coupled. The operating unit may be, for example, a control unit having a display in order to be able to map different values or setting modes, if necessary. It is also conceivable to use a tablet computer as a kind of remote control unit for the device.

The operating unit can furthermore be coupled to a control device of the spray head of the device. It is conceivable, for example, to image different spray profiles of the spray head, between which an operator of the control unit can select. For example, a pressure specification for the high-pressure fluid jet to be generated by the spray head can be proposed depending on the mineral workpiece to be machined, the surface to be processed or the construction section to be processed. In addition, it may also be possible to activate or deactivate the oscillating movement of the spray head via the operating unit.

Furthermore, a sensor unit can be arranged on or in the region of the first, second and / or third feed unit, but preferably on or in the region of the spray head of the second feed unit. For example, unevenness and / or irregularities of the mineral workpiece to be processed, the surface to be processed and / or the construction section to be processed can be detected by means of the sensor unit. The sensor unit may be coupled to the control device of the spray head and / or to the control unit or control device of the operating unit in order, if necessary, to be able to react automatically to the unevennesses and / or irregularities. The unevenness and / or irregularities can also be imaged on the optionally present display of the operating unit so that the operator of the operating unit can react to the unevennesses and / or irregularities.

In a preferred embodiment variant of the device, the first rail element may be formed by at least two first rail sections which are joined together in alignment with racks which adjoin one another without gaps. As a result, a largely uninterrupted mobility of the at least one second rail element over the entire length of the first rail element is allowed or made possible. Furthermore, the first rail element may be formed by two, three or more aligned rail sections with gapless adjoining racks. Thus, a mobility of the second rail element over an unlimited or limited only by the total length of the first rail element track allows or allows.

The above-mentioned object of the invention is achieved not only by the device according to the invention but also by a method for processing mineral workpieces, surfaces and / or construction sections. Thus, in order to achieve the object formulated above, the invention proposes a method for the abrasive action, machining, cutting and / or removal of mineral workpieces, surfaces and / or construction sections, in particular of concrete, by means of at least one high-pressure fluid jet, the method in particular by means of a Device according to one of the previously described embodiments is feasible or can be performed. It is additionally provided that the method according to the invention comprises at least the subsequent steps. A high-pressure fluid jet is generated which can perform oscillatory movements. the high-pressure fluid jet is generated by means of at least one spray head which has at least one outlet nozzle for the high-pressure fluid jet. The at least one spray head is positioned in the region of a working plane, by means of a positioning device. It is provided that the at least one spray head with respect to the working plane and / or in at least two axes spaced and can be moved or moved approximately parallel to a surface of the respective workpiece, the surface to be machined and / or the construction section to be processed. Furthermore, it is provided that the positioning device has at least one first and at least one second rail element. The at least one first rail element can be detachably fixed to the surface of the respective workpiece, the surface to be processed and / or the construction section to be processed or in the region of the working plane. The at least one second rail element is furthermore arranged displaceably on the at least one first rail element. In addition, the at least one first rail element and the at least one second rail element can be aligned at least approximately at right angles to one another or are oriented approximately at right angles to one another. According to the invention, the method further provides that the at least one spray head can be displaced on the at least one second rail element, and that the workpiece and / or the surface to be processed and / or the construction section to be processed are thereby subjected to the oscillating high-pressure fluid jet or is swept over.

A variant of the method according to the invention can also provide that the at least one second rail element can be displaced vertically by means of a first feed unit on the at least one first rail element. In addition, it can be provided that the at least one spray head by means of a second Feed unit on the at least one second rail element can be moved horizontally.

A further variant of the method can provide that the at least one spray head and / or the at least one outlet nozzle can be adjusted in the inclination with respect to the working plane.

It should also be noted at this point that all aspects of the device according to the invention previously described in various embodiments are equally applicable to the method or can relate to the method. The same applies vice versa, so that all aspects of the method variants described above are equally applicable to the device according to the invention or can relate to the device according to the invention. Therefore, if a device variant is mentioned at one point in the present description, this is generally to be understood as meaning that this described aspect can equally refer to any variant of the method according to the invention or can describe such a method variant. If a variant of the method is also mentioned elsewhere in the present description, this is generally to be understood as meaning that this described method aspect can equally refer to any variant of the device according to the invention or describe such a device variant.

• Fig. 1 zeigt eine schematische Ansicht einer erfindungsgemäßen Vorrichtung zur abrasiven Einwirkung, zum abrasiven Bearbeiten, zum Schneiden und/oder Abtragen von mineralischen Werkstücken, Flächen und/oder Bauabschnitten.
• Fig. 2 zeigt eine Perspektivansicht einer erfindungsgemäßen Vorrichtung.
• Fig. 3a zeigt eine schematische Darstellung eines erfindungsgemäßen Vorschubmotors.
• Figuren 3b und 3c zeigen jeweils eine schematische Darstellung erfindungsgemäßer Vorschubeinheiten.
• Fig. 3d zeigt eine schematische Darstellung eines erfindungsgemäßen Schienenelements.
• Fig. 4 zeigt ein weiteres Ausführungsbeispiel einer erfindungsgemäßen Vorrichtung.
• Fig. 5 zeigt eine weitere Variante der Vorrichtung nach Fig. 4.
• Fig. 6 zeigt eine weitere Ausführungsvariante der erfindungsgemäßen Vorrichtung.

In the following, embodiments of the invention and their advantages with reference to the accompanying figures will be explained in more detail. The proportions of the individual elements to one another in the figures do not always correspond to the actual size ratios, since some shapes are simplified and other shapes are shown enlarged in relation to other elements for better illustration.

• Fig. 1 shows a schematic view of a device according to the invention for abrasive action, for abrasive processing, for cutting and / or removal of mineral workpieces, surfaces and / or construction sections.
• Fig. 2 shows a perspective view of a device according to the invention.
• Fig. 3a shows a schematic representation of a feed motor according to the invention.
• FIGS. 3b and 3c each show a schematic representation of inventive feed units.
• Fig. 3d shows a schematic representation of a rail element according to the invention.
• Fig. 4 shows a further embodiment of a device according to the invention.
• Fig. 5 shows a further variant of the device according to Fig. 4 ,
• Fig. 6 shows a further embodiment of the device according to the invention.

For identical or equivalent elements of the invention, identical reference numerals are used. Furthermore, for the sake of clarity, only reference symbols are shown in the individual figures, which are required for the description of the respective figure. The illustrated embodiments merely represent examples of how the device according to the invention and / or the method according to the invention can / can be configured and do not constitute a final limitation.

In Fig. 1 an embodiment variant of a device 2 according to the invention for abrasive action, for abrasive machining, for cutting and / or removal of mineral workpieces, surfaces and / or construction sections is shown. The device 2 comprises a positioning device 4, by means of which a spray head 6 in a plane defined by the positioning means 4 working plane, which is indicated by the reference numeral 12, and / or at least two axes spaced and approximately parallel to a surface of a workpiece, a can be moved to be machined surface and / or a construction section to be processed. The positioning device 4 has a first rail element 8 and a second rail element 10.

A preferred embodiment of a rail element 8, 10 is in Fig. 3d displayed. The first rail element 8 can be detachably fixed in the working plane 12, for example on the surface of the respective workpiece, on the surface to be machined and / or on the construction section to be machined. In a preferred embodiment, for example when machining a vertical concrete wall, the first rail element 8 is vertically aligned. The detachable fixation can be made possible, for example, by means of fastening elements 16 provided with boreholes 14, through which the mineral workpieces, surfaces and / or construction sections in the region of the working plane 12, on which abrasive action is to be applied, abraded, cut and / or removed, a screw connection can be produced. The second rail element 10 is oriented upright and mounted slidably on the first rail element 8. The displaceability of the second rail member 10 is made possible by means of a first feed unit 20 which is slidably mounted on the first rail member 8. Preferably, the first rail element 8 and the second rail element 10 are arranged at right angles to each other, so that a horizontal alignment of the second rail element 10 results. However, it is also conceivable for a horizontal alignment of the first rail element 8, so that the second rail element 10 can correspondingly have a vertical orientation.

At the respective ends of the rail elements 8, 10 is in each case a connection region 26 'is provided, which may each have a connecting element 26, so that if necessary further first or second rail elements 8 *, 10 * (see. Fig. 5 ) can be connected to the first and second rail element 8, 10. On the side of the first rail element 8 facing the second rail element 10, the first rail element 8 may have a rack 8 '. By means of a first drive unit 20 arranged on the first drive means 18 ', preferably in the form of a drivable first gear 18, the first feed unit 20, and thus the second rail member 10, along the rack 8' in the vertical direction (see arrow 38) become.

The second rail member 10 may also be provided with a rack 10 '. On the second rail element 10, the spray head 6 is fixed in a displaceable manner on a second feed unit 20 '. To facilitate replacement or replacement of the spray head, the spray head may be releasably attached to the second feed unit 20 '. A second drive means 22 'in the form of a drivable second gear 22, which is arranged on the second feed unit 20', in operative connection with the rack 10 ', a displacement of the spray head 6 in the horizontal direction (see arrow 40) allow. The first gear 18 and the second gear 22, for example, by means of a feed motor 44 (see. Fig. 2 and 3a ) are driven. The spray head 6 has an outlet nozzle 36 (see. Fig. 3c ), through which a high-pressure fluid jet can be provided. For the supply of fluid, the spray head 6 or the outlet nozzle 36 can be coupled to a fluid supply line 24. By means of a control device S or a control unit 46, the control of the device 2 or the positioning device 4 can be made possible.

In Fig. 2 is also a variant of the inventive device 2 for abrasive action, for abrasive processing, for cutting and / or removal of mineral workpieces, surfaces and / or construction sections shown. Here too, the positioning device 4 has a first and a second rail element 8, 10. The second rail element 10 is fastened displaceably to the first rail element 8 by means of the first feed unit 20. A preferred Befestigungsvarinate the second rail member 10 to the feed unit 20 is in Fig. 3b displayed. The first feed unit 20 in this case has four protruding elements 30, which are stabilized by means of struts 32. The second rail element 10 can be fixed to the elements 30. By means of clamping elements 34 of the first feed unit 20, the first rail element 8 can be clasped, so that the first feed unit 20 and the second rail member 10 is slidably mounted on the first rail member 8.

Furthermore, the spray head 6 by means of the second feed unit 20 'on the second rail member 10 is slidably mounted. A preferred embodiment of the second feed unit 20 'is shown in FIG Fig. 3c displayed. At the second feed unit 20 'also protruding elements 30' are provided, which are stabilized by means of struts 32 '. On the elements 30 ', the spray head 6 can be fixed. The spray head 6 in this case has an outlet nozzle 36, through which a high-pressure fluid jet can escape. For example, the spray head 6 can be driven electrically or hydraulically. The fluid supply for the spray head 6, for example by means of a in Fig. 1 be ensured fluid supply line 24. The spray head 6 or the outlet nozzle 36 is suitable for carrying out oscillating movements, so that the high-pressure fluid jet can be emitted in an oscillating manner. Also conceivable is a rigid arrangement of the spray head 6 and the outlet nozzle 36 to obtain a fixed high-pressure fluid jet. Likewise, as indicated by the arrows 42, the angle of inclination of the outlet nozzle 36 and the outlet angle of the high-pressure fluid jet can be changed so that, for example, corner regions of the working plane 12 can be achieved with the high-pressure fluid jet. Here, for example, an inclination of the spray head 6 and the outlet nozzle 36 of 45 ° is conceivable. The second feed unit 20 'also has clamping elements 34', which can clasp the second rail element 10, so that the second feed unit 20 'or the spray head 6 is slidably attached to the second rail element 10.

In Fig. 4 a further embodiment of a device 2 according to the invention for abrasive action, for abrasive machining, for cutting and / or removal of mineral workpieces, surfaces and / or construction sections is shown. As in the embodiment of the FIGS. 1 and 2 The device 2 here also has a positioning device 4, consisting of a first rail element 8 and a second rail element 10. The first rail element 8 can be releasably fastened to fastening elements 16 provided with boreholes 14 by means of a screw connection to a mineral workpiece, a surface and / or a construction section, preferably in a vertical orientation. By means of the device 2 fastened to the mineral workpiece, the surface and / or the construction section, a region of a working plane 12 can be formed. The first rail element 8 is provided with a rack 8 '. The second rail element 10 is arranged so as to be vertically displaceable by means of a first feed unit 20 (compare arrow 38) on the first rail element 8. In this case, the second rail element 10 is arranged transversely aligned with the first feed unit 20. At the first feed unit 20, a drivable first gear 18 is arranged, by means of which in operative connection with the rack 8 ', the first feed unit 20 and the second rail member 10 can be moved vertically. The use of a drive wheel instead of a gear 18 is readily possible.

The second rail element 10 also has a toothed rack 10 '. Due to the transversely oriented arrangement of the second rail element 10, the rack 10 'is arranged on the upper surface of the second rail element 10. A second feed unit 20 'can be moved horizontally (see arrow 40) on the second rail element 10. At the second feed unit 20 ', a spray head 6 is arranged, which has an outlet nozzle 36 for a high-pressure fluid jet. The spray head 6 and the outlet nozzle 36 may, as already described in connection with the previous embodiments, suitable for performing an oscillating movement and also be adjustable in inclination. As with the first feed unit 20, a second gear 22, not shown, can also be provided on the second feed unit 20 'for adjusting the second feed unit 20'. Again, the use of a drive wheel instead of a second gear 22 is conceivable. Furthermore, in this embodiment of the device 2, the second rail element 10 can also be moved horizontally (compare arrow 56). For this purpose, preferably at the first feed unit 20, a further third feed unit 20 "may be arranged, which via a third drive means 58 'in the form of a drivable third gear 58th or a drive wheel. The third gear 58 is operatively connected to the rack 10 'of the second rail element 10, so that the second rail element 10 can be moved horizontally with respect to the first rail element 8 by driving the third gear 58. On the basis of the dotted surface 50 an already processed by the high-pressure fluid jet surface is shown.

For supplying energy to the feed units 20, 20 ', 20 ", a feed motor 44 may be provided on the feed units 20, 20', 20" (cf. Fig. 2 and 3a ). The feed motor 44 may be suitable, for example, for driving the gears 18, 22, 58, so that the by an operative connection between the respective gear 18, 22, 58 and the racks 8 ', 10', a displacement of the second rail member 10 in vertical or horizontal Direction 38, 56 and the spray head 6 in the horizontal direction 40 can be made possible. The feed motor 44 may be, for example, an electric motor or a hydraulically driven motor. Furthermore, the advancing units 20, 20 ', 20 "may be associated with a displacement control or high pressure fluid jet control device 46. In one embodiment, the fluid supply line 24 may be used simultaneously as the power supply line 48 for the advancing motor 44 and / or the control device 46 Furthermore, it is also conceivable to use separate energy supply lines for the feed motor 44 and / or the control device 46. The control device S in conjunction with the control unit 46 controls the device 2, in particular the displacement of the feed units 20, 20 ', 20 "and the regulation of the high-pressure fluid jet, possible. The control can be carried out, for example, via a connecting line between the control device S and the control unit 46. Optionally, a wireless connection between the control device S and the control unit 46 may exist, so that a flexible operation of the device 2 is possible (see. Fig. 6 ).

The schematic representation of Fig. 5 shows a further embodiment variant of the device according to the invention 2. Here, the first and second rail element 8, 10 are each extended by a further first and second rail element 8 *, 10 * or first and second rail sections 8 *, 10 *. The further first and second rail elements 8 *, 10 * or first and second rail sections 8 *, 10 * can be connected to the first and second rail elements 8, 10 with little effort by means of the connecting elements 26. In this way, the possible surface to be machined 50 of the spray head 6 can be increased. Farther two, three or more aligned further first and second rail elements 8 *, 10 * or first and second rail sections 8 *, 10 * can be strung together to the first and second rail elements 8, 10 (cf. Fig. 6 ). The toothed racks 8 ', 10' of the rail elements 8, 10 and 8 *, 10 * are preferably lined up seamlessly, so that a largely uninterrupted mobility of the feed units 20, 20 ', 20 "over the entire length of the rail elements 8, 10, 8 *, 10 * is possible.

The spray head 6 and the outlet nozzle 36 may be provided for cutting mineral workpieces, surfaces and / or construction sections. For the cutting of mineral workpieces, surfaces and / or construction sections no oscillating movement is necessary. A cut in a mineral workpiece, a surface and / or a construction section is shown on the basis of the line marked with the reference numeral 54. Furthermore, the spray head 6 or the outlet nozzle 36 can be provided for the abrasive action, for the abrasive processing and / or removal of mineral workpieces, surfaces and / or construction sections. In particular, an oscillating movement of the spray head 6 or the outlet nozzle 36 is necessary. The surface of the mineral workpiece, the surface and / or the construction section can be removed, for example, in a layer several centimeters thick. In the mineral workpiece, the surface and / or the construction section located elements such as reinforcements or steel elements remain undamaged in this approach or are not severed by the high-pressure fluid jet. This is represented by the reinforcement indicated by the reference numeral 52.

In Fig. 6 a further embodiment variant of the device 2 according to the invention is shown. In this case, further first and second rail elements 8 *, 10 * or first and second rail sections 8 *, 10 * are attached to the first and second rail elements 8, 10 in order to increase the freedom of movement and the possible processing surface of the device 2. As already in Fig. 5 described, the other first and second rail elements 8 *, 10 * or the first and second rail sections 8 *, 10 * in a simple manner to the first and second rail element 8, 10, or to further already connected thereto first and second rail elements 8 *, 10 * can be coupled. In order to maintain or increase the stability of the device, the further first rail elements 8 * or first rail sections 8 * can be fixed in the working plane 12 by means of fastening elements 16. By the other first and second rail elements 8 *, 10 * or First and second rail sections 8 *, 10 * is an enlargement of the area to be machined by the spray head 6 possible, as indicated by the reference numeral 50 '. The more further first and second rail elements 8 *, 10 * or first and second rail sections 8 *, 10 * are attached to the first and second rail elements 8, 10, the larger and further the possible working surface 50 'can consequently extend.

To facilitate control of the device 2, in particular of the feed units 20, 20 ', 20 "and of the spray head 6, control units 60 can be provided on the feed units 20, 20', 20 ', which are in communication with the control device S. In addition, the spray head 6 can also have a control unit 60 ', which is coupled to the control device S. The control device S or the control units 60 and 60 'can also be coupled to an operating unit B in order to facilitate an operator of the device 2 to operate or control the feed units 20, 20', 20 "or the spray head 6 For example, via the operating unit, a feed rate of the feed units 20, 20 ', 20 "can be set, which is suitable for the currently available mineral workpiece, the surface and / or the construction section. Likewise, a possible adjustment of the spray head 6 by means of the control unit B offers. In this case, for example, activating or deactivating an oscillating movement of the spray head 6 can be carried out via the operating unit B, or a pressure specification for the high-pressure fluid jet to be generated by the spray head 6 can be adapted.

The attachment of a not-shown sensor unit to or in the region of the feed units 20, 20 ', 20 ", preferably at or in the region of the spray head 6, which is optionally coupled to the control device S or the control units 60, 60', is conceivable For example, unevenness and / or irregularities of the mineral workpiece to be processed, the surface to be processed and / or the construction section 50 to be processed can be detected by means of the sensor unit The values detected by the sensor unit can be displayed, for example, on the operating unit B or on a display Control unit B can be displayed, so that the operator of the device 2 can respond directly to the bumps and / or irregularities.An automatic adjustment of the settings of the feed units 20, 20 ', 20 "or the spray head 6 by means of the control device S and the control units 60, 60 'take place.

It should finally be pointed out that all aspects of the device 2 according to the invention which have been described above in various design variants are equally applicable to the method or can relate to the method. The same applies vice versa, so that all aspects of the method variants described above are equally applicable to the device 2 according to the invention or can relate to the device according to the invention. Therefore, if a device variant is mentioned at one point in the present description, this is generally to be understood as meaning that this described aspect can equally refer to any variant of the method according to the invention or can describe such a method variant. If a variant of the method is also mentioned elsewhere in the present description, this is generally to be understood as meaning that this described method aspect can equally refer to any variant of the device 2 according to the invention or describe such a device variant.

The invention has been described with reference to FIGS FIGS. 1 to 6 described with reference to preferred embodiments. However, this by no means precludes the person skilled in the art from making modifications or changes to the invention on the basis of the described embodiments without departing from the scope of the following claims.

LIST OF REFERENCE NUMBERS

2

Device for abrasive action, for abrasive machining, for cutting and / or removal of mineral workpieces, surfaces and / or construction sections, in particular of concrete

4

positioning

6

spray nozzle

8, 8 *, 8 '

first rail element; another first rail element; first rack

10, 10 *, 10 '

second rail element; another second rail element; second rack

12

working level

14

wells

16

fasteners

18, 18 '

first gear, first drive means

20, 20 ', 20 "

first feed unit; second feed unit, third feed unit

22, 22 '

second gear, second drive means

24

Fluid supply line

26, 26 '

Connecting element; connecting region

30, 30 '

protruding elements

32, 32 '

pursuit

34, 34 '

clamp elements

36

exhaust nozzle

38

Shift in the vertical direction

40

Shift in horizontal direction

42

Adjustment of the inclination of the outlet nozzle

44

feed motor

46

control unit

48

Power line

50

machined or machined surface

50 '

increased possible processing area

52

reinforcement

54

cut

56

Shift in horizontal direction

58, 58 '

third gear, third drive means

60, 60 '

control units

S

control device

B

operating unit

Claims (15)

Device (2) for abrasive action, for abrasive machining, for cutting and / or removing mineral workpieces, surfaces and / or construction sections, in particular concrete by means of a device for producing at least one high-pressure fluid jet, comprising: at least one spray head (6), which has at least one spray head (6) at least one outlet nozzle (36) for the high-pressure fluid jet and which spray head (6) is provided and / or suitable for performing oscillating movements, - Positioning means (4) for positioning the at least one spray head (6) in the region of a working plane (12) by means of which positioning means (4) the at least one spray head (6) with respect to the working plane (12) and / or spaced in at least two axes and is arranged to be movable or displaceable approximately parallel to a surface of the respective workpiece, the surface to be processed and / or the construction section to be machined, Wherein the positioning device (4) has at least one first and at least one second rail element (8, 10), which releasably fixes at least one first rail element (8) to the surface of the respective workpiece, the surface to be machined and / or the construction section to be machined is fixable in the region of the working plane (12), and which at least one second rail element (10) is displaceably arranged on the at least one first rail element (8). Wherein the at least one first rail element (8) and the at least one second rail element (10) are aligned at least approximately at right angles to each other, and Wherein the at least one spray head (6) is arranged displaceably on the at least one second rail element (10). Device (2) according to claim 1, wherein at least one end of the at least one first rail element (8), a first connection region (26 ') for connecting a further first rail element (8 *) is provided and / or wherein at least one end of at least a second connection element (26 ') for connecting a further second rail element (10 *) is provided in a second rail element (10). Device (2) according to claim 2, wherein the first connection region (26 ') has at least one connecting element (26) for connecting a further first rail element (8 *) to the at least one first rail element (8) and / or wherein the second connection region (26 ') has at least one connecting element (26) for connecting a further second rail element (10 *) to the at least one second rail element (10). Device (2) according to claim 2 or 3, wherein on the at least one first rail element (8, 8 *) at least a first rack (8 ') is arranged, which in operative connection with a first drive unit (20) arranged first drive means, in particular gear (18), an adjustment of the first feed unit (20) with respect to the at least one first rail element (8, 8 *) causes. Device (2) according to one of claims 1 to 4, wherein the at least one second rail element (10, 10 *) by means of a first feed unit (20) on the at least one first rail element (8, 8 *) is arranged vertically displaceable, and / or wherein the at least one spray head (6) by means of a second feed unit (20 ') on the at least one second rail element (10, 10 *) is arranged horizontally displaceable. Device (2) according to claim 4 or 5, wherein on the at least one second rail element (10) at least one second rack (10 ') is arranged, which in operative connection with a on the second feed unit (20') arranged second drive means, in particular gear (22), an adjustment of the second feed unit (20 ') with respect to the at least one second rail element (10) causes. Device (2) according to one of claims 1 to 6, wherein the at least one second rail element (10) by means of a third feed unit (20 ") with respect to the at least one first rail element (8) is arranged horizontally displaceable. Device (2) according to claim 7, wherein the third feed unit (20 ") is arranged on or in the region of the first feed unit (20), and wherein on the third feed unit (20") a third drive means, in particular a gear (58 ), which in operative connection with the second rack (10 ') causes a relative to the at least one first rail element (8) horizontal adjustment of the at least one second rail element (10). Device (2) according to one of claims 4 to 8, wherein at least one feed motor (44) is provided on the first feed unit (20) and / or on the second feed unit (20 ') and / or on the third feed unit (20 ") which causes a drive of the first drive means (18) and / or the second drive means (22) and / or the third drive means (58). Device (2) according to one of claims 1 to 9, wherein by means of a fastening elements (16) of the at least one first rail element (8) mounted connection, in particular screw, the at least one first rail element (8) in the region of the working plane (12) detachable can be fixed. Device (2) according to any one of claims 4 to 10, wherein the first rail element (8) by at least two adjacently joined rail sections (8, 8 *) with each other gapless adjoining racks (8 ') is formed, which substantially uninterrupted mobility of second rail element (10) over the entire length of the first rail element (8, 8 *) allows / allows, and / or wherein the first rail element (8) by two, three or more aligned rail sections (8 *) with each other without gaps Racks (8 ') is formed, which allows a mobility of the second rail element (10, 10 *) over an unlimited or limited only by the total length of the first rail element (8, 8 *) distance / allows. Process for the abrasive action, machining, cutting and / or removal of mineral workpieces, surfaces and / or construction sections, in particular of concrete by means of at least one high-pressure fluid jet, wherein the method is in particular by means of a device according to one of claims 1 to 11 feasible or is carried out, and wherein the method comprises at least the following steps: Generating an oscillating motion high pressure fluid jet by means of at least one spray head (6) having at least one outlet nozzle (36) for the high pressure fluid jet, - Positioning the at least one spray head (6) in the region of a working plane (12) by means of a positioning device (4), wherein the at least one spray head (6) with respect to the working plane (12) and / or at least two axes spaced and approximately parallel to a surface of the respective workpiece, the surface to be machined and / or the construction section to be processed can be moved or moved, Wherein the positioning device (4) has at least one first and at least one second rail element (8, 10), which releasably fixes at least one first rail element (8) to the surface of the respective workpiece, the surface to be machined and / or the construction section to be machined in the region of the working plane (12), and which at least one second rail element (10) is displaceably arranged on the at least one first rail element (8), Wherein the at least one first rail element (8) and the at least one second rail element (10) are aligned or can be aligned at least approximately at right angles to one another, and Wherein the at least one spray head (6) on the at least one second rail element (10) can be moved and thereby sweeps over the workpiece and / or the surface to be machined and / or the construction section to be machined and acted upon by the oscillating high-pressure fluid jet. Method according to Claim 12, in which the at least one second rail element (10, 10 *) can be displaced vertically by means of a first feed unit (20) on the at least one first rail element (8, 8 *). The method of claim 12 or 13, wherein the at least one spray head (6) by means of a second feed unit (20 ') on the at least one second rail element (10, 10 *) can be moved horizontally. Method according to one of claims 11 to 14, wherein the at least one spray head (6) and / or the at least one outlet nozzle (36) can be adjusted in inclination with respect to the working plane (12).

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