EP3126077B1 - Processing system for processing a cast raw casting and method for producing a cast component - Google Patents

Description

The present invention relates to a processing device for processing a cast raw part and a casting cell for producing a cast component, which has a casting machine and a processing device. The present invention also relates to a method for producing a cast component.

It is fundamentally known that in the die casting process, which is an industrial casting process for the production of series components, metallic materials with a low melting point are usually used. In particular, liquid melt is pressed under high pressure of approx. 10 MPa to 120 MPa and at a relatively high mold filling speed of, for example, up to 120 m / s into a die casting mold, which can also be referred to as a cavity, in which the melt becomes one Cast blank solidified. In the die-casting process, it is advantageous to work with a permanent mold and consequently without a correspondingly required model, so that there is little manufacturing effort in the manufacture of series components. The structural components produced, for example, in the die-casting process, which are advantageously magnesium and aluminum structural components, are known to be removed from the casting machine in the hot state and then roughly deburred in a press within the casting cell. However, the fine deburring takes place at a much later point in time, when the casting blank removed from the casting machine has cooled to room temperature (usually 25 ° C). This means that the second deburring process, namely the fine deburring process, has to take place with a further additional punching tool in an additional press, which is optionally arranged outside the casting cell. Furthermore, it is fundamentally known that the cast raw parts usually still have to be manually adjusted in a time-consuming and costly manner in order to achieve any component tolerances that may be required.

From the US 6,557,622 B2 , JP 2009 255118 A , WO 2012/028964 A1 and EP 0 429 394 A1 Devices and methods for producing cast parts are known in which the cast part is cooled or can be cooled by means of a cooling device after the casting process. The cooling can take place here by directly acting on the cast part by means of a cooling fluid sprayed via nozzles or by solid-state cooling of a cooling mold. A control or targeted modification of the geometry of the cast part is not disclosed or suggested by any of these documents.

It is therefore the object of the present invention to at least partially remedy the disadvantages described above in the case of a machining device for machining a cast raw part and a casting cell for producing the cast component. In particular, it is the object of the present invention to provide a processing device for processing a cast raw part and a casting cell for producing the cast component and in particular a method for producing the cast component, by means of which a cast component can be produced in a simple and inexpensive manner can, whereby in its production on separately successive processing steps, such as the separated coarse deburring and fine deburring and the straightening process carried out separately for this, can be dispensed with. The cast component should advantageously be produced and, in particular, processed within a casting cell.

The above object is achieved by a processing device for processing a cast raw part with the features of claim 1 and by a casting cell for producing a cast component with the features of claim 5 and also with a method for producing a cast component with the features of claim 6 Features and details of the invention emerge from the subclaims, the description and the drawings. Features and details that are described in connection with the processing device naturally also apply in connection with the casting cell according to the invention or the method according to the invention for producing a cast component and vice versa, so that with regard to the disclosure the individual aspects of the invention are always reciprocally referred to or can be.

The processing device according to the invention for processing a cast blank has a spray device for cooling the cast blank, which has at least one nozzle device for applying a flowable medium to at least one section of the cast blank in a variable manner at least in terms of time, location or quantity, as well as a temperature measuring device for measuring the temperature at least one section of the cast blank and a control device for controlling and regulating the nozzle device as a function of the measured temperature. The raw cast part itself is advantageously a raw part that arises after the casting process, but has to be processed in the following and in particular straightened and deburred so that a cast component can be created from this raw cast part, which according to the present invention is understood as a finished component which can be arranged, for example, in a component group. The processing device itself is advantageously used to subsequently process the raw cast part cast by means of, in particular, a casting machine. For this purpose, the processing device has a spray device which has at least one nozzle device which is used to apply a flowable medium, which is advantageously a water-air mixture, to at least sections of the cast blank. The nozzle device of the spray device itself can, for example, be arranged statically, that is to say immovable, or moveable relative to the raw cast part to be cooled. With a static arrangement of the nozzle device within the spray device, it is consequently possible for the cast blank to be moved along a processing or transport path through the spray device along the nozzle device or past it. Furthermore, it is also conceivable that the cast blank is moved not only in a translatory movement in the direction of the transport path along the nozzle device, but also in a rotational manner about its longitudinal axis along the nozzle device, so that there is the possibility that by means of the nozzle device, any section of the Gussrohteils the flowable medium can be applied. In the event that the nozzle device itself is movably arranged relative to the cast blank to be cooled, the nozzle device can be moved along the cast blank, which is advantageously statically and therefore immovable within the spray device to enable the flowable medium to be applied to any section of the cast blank. Which amount of flowable medium is to be applied in which mixing ratio in which period of time and to which section of the cast blank is advantageously determined based on the measured values of the temperature measuring device.

The temperature measuring device, which consequently represents a unit of the machining device, advantageously measures the temperature of the casting blank on at least one section of the casting blank, whereby it is also conceivable that the temperature measuring device determines its temperature on different sections of the casting blank.

A control device connected in a data-communicating manner to the temperature measuring device and advantageously to the nozzle device advantageously serves to at least control or regulate the nozzle device as a function of the measured temperature. As a result, the control device can define on which section of the casting blank what amount of flowable medium is to be applied in what period of time and / or in what mixing ratio.

The processing device is advantageously used on the one hand to cool the cast blank and, on the other hand, advantageously also to straighten the cast blank, as will be described in detail below. Advantageously, the raw cast part is cooled by means of the processing device according to the invention due to the precisely meterable flowable medium to a temperature of advantageously less than 80 ° C and particularly advantageously less than 50 ° C, so that the coarse and fine deburring in a single processing step is advantageous in the subsequent step can be made possible within a casting cell.

The machining device according to the invention has a geometry measuring device for measuring at least one geometry of the cast blank. Accordingly, the geometry measuring device is advantageously a unit of the processing device and particularly advantageously also wired or wirelessly connected to the control device in a data-communicating manner in order to forward determined or measured values to the control device, which then determines whether there is a deviation the geometry and in particular individual dimensions of the cast blank is available. Accordingly, the control device can advantageously control the at least one nozzle device not only based on the measured values of the temperature measuring device, but advantageously also based on the measured values of the geometry measuring device, in such a way that it applies a defined amount of flowable medium to a defined section or area of the cast blank at defined time intervals , advantageously in a defined mixing ratio, in order to specifically cool the cast blank and consequently to counteract any possible distortion due to a targeted flow of the cast blank by means of the flowable medium.

The processing device advantageously has a comparison device for comparing the measured temperature value with a reference temperature value and / or the measured geometry value with a reference geometry value. Accordingly, the comparison device, which is advantageously also a unit of the processing device, is particularly advantageously connected to the control device in a data-communicating manner and compares the actual values obtained with, for example, setpoint values stored in a memory device. The storage device is preferably a unit of the control device, but can also be an independent unit. The comparison of the values leads, for example, to a defined application of the flowable medium to defined sections of the cast blank and thus to a defined cooling and / or straightening of the cast blank or also to a cooling stop and / or straightening stop.

The nozzle device has at least one two-substance nozzle for applying two differently flowable substances to the casting blank, with the two-substance nozzle being able to combine the two flowable substances to form the flowable medium in a quantitatively variable manner. Accordingly, it is conceivable that the flowable medium, which is, for example, a water-air mixture, can be flexibly varied in its mixing ratio. The flowable medium is advantageously applied in the form of a spray mist to the cast blank and in particular at least a section of the cast blank. In the case of the flowable medium, in particular the water-air mixture, the water droplets are advantageously sprayed finely atomized onto the component, it being assumed within the scope of the invention that the The more finely the water droplets are atomized, the less pronounced the Leidenfrost effect is. The Leidenfrost effect describes a physical effect which includes the delayed metabolism and in particular the time-extended change in the state of aggregation. Based on the Leidenfrost effect, it is consequently disadvantageously possible that a desired short time for cooling down the casting blank would be lengthened, for example due to a layer of vapor accumulating between the casting blank and the cooling medium. Accordingly, in the context of the invention, as much spray mist is emitted only quantitatively as water can be evaporated without residue. The amount is advantageously regulated in real time, depending on the spray duration or the casting blank temperature. This can advantageously prevent water from accumulating on the casting blank and consequently the associated water carryover within the casting cell, in particular by continuously reducing the amount of sprayed water, so that in particular the last time segment of the cooling phase is advantageously carried out exclusively with air.

It is furthermore conceivable that the spray device has a plurality of nozzle devices which are statically or movably arranged relative to the casting blank to be cooled and which are arranged at a distance from one another within the spray device. Accordingly, the spray device can advantageously have two or more nozzle devices, which are advantageously controlled or regulated independently of one another by means of the control device. It is therefore advantageously possible for each nozzle device of the spray device to apply a different amount of flowable medium to another nozzle device of the spray device or also to apply a different mixing ratio of flowable medium to mutually different sections or areas of the cast blank. In this way, a defined cooling of individual sections of the cast blank can be made possible, which in turn advantageously counteracts any distortion that occurs due to the defined cooling or through which targeted straightening is brought about.

It is also conceivable that the spray device has a sprue gripper for positioning the cast blank with respect to the nozzle device. The casting blank can advantageously be fixed within the spray device by means of the sprue gripper so that the shrinkage occurring during cooling cannot have any influence on the gripping position.

Furthermore, a casting cell for producing a cast component is claimed, having at least one casting machine with at least one cavity for producing a raw cast part and at least one processing device according to at least one of the preceding claims 1 to 5. Consequently, a casting cell for producing a cast component is advantageously claimed, which is claimed under other has a processing device of the type mentioned above. Within the scope of the invention, the casting blank can advantageously be produced, cooled and processed within the casting cell, so that transport routes between the casting area and the processing area are therefore eliminated. Advantageously, additional manufacturing steps are also omitted, in that the cast raw casting can be deburred after cooling and advantageously also straightened at the same time, the coarse deburring and the fine deburring advantageously taking place during one processing step. In the context of the invention, deburring is to be understood as a mechanical processing of the cast blank, in which the pouring and overflow system are removed. The casting machine, which can also be referred to as a die-casting machine, advantageously has a mold-closing unit which is used to open and close the die-casting mold and in particular the cavity. The mold closing unit itself advantageously has a fixed machine plate for receiving a fixed casting mold half and a movable machine plate for receiving a hydraulic ejector. The movable machine plate is advantageously guided by means of guide columns. The fixed machine plate and the movable machine plate are closed, for example, by means of a lock cylinder. The liquid material, namely the melt, for producing the cast raw part is pressed, for example, from a casting chamber with a casting piston into the mold or cavity, whereby, depending on the type of machine used, a distinction can be made between a hot chamber process and a cold chamber process.

The casting cell according to the invention results in all of the advantages that have already been described for a machining device according to the invention according to a first aspect of the invention.

• Gießen eines Gussrohteils mittels einer Gießmaschine innerhalb wenigstens einer Kavität der Gießmaschine,
• Messen der Temperatur wenigstens eines Abschnittes des gegossenen Gussrohteils mittels einer Temperaturmesseinrichtung, und
• Bearbeiten des gegossenen Gussrohteils mittels eines von einer Bearbeitungsvorrichtung auf das Gussrohteil aufgetragenen fließfähigen Mediums. Das Gussbauteil selbst ist vorteilhaft ein bearbeitetes Gussrohteil, wobei das Gussrohteil innerhalb einer Kavität der Gießmaschine gegossen bzw. hergestellt wird, und zur Bearbeitung an eine Bearbeitungsvorrichtung übergeben werden kann. Vorteilhaft dienen Greifer bzw. Transportmittel zur Übergabe des Gussrohteils von der Kavität der Gießmaschine an die Bearbeitungsvorrichtung, wobei die Gießmaschine und die Bearbeitungsvorrichtung vorteilhaft Einheiten bzw. Vorrichtungen einer gemeinsamen Gießzelle sind. Nach der Bearbeitung des Gussrohteils entsteht das Gussbauteil, welches folglich als fertiges Bauteil in eine Bauteilgruppe integriert werden kann. Um zu ermitteln, in welchen Abschnitten das Gussrohteil mittels dem fließfähigen Medium bearbeitet werden soll, dient eine Temperaturmesseinrichtung zum Messen der Temperatur, wobei die Temperaturmesseinrichtung insbesondere ein Temperaturmesssystem, wie beispielsweise ein Temperaturfühler oder ein Temperatursensor usw. oder gegebenenfalls auch eine Thermobildkamera sein kann. Die Temperaturmesseinrichtung ermittelt die Temperatur des gegossenen Gussrohteils vorteilhaft in Echtzeit und überträgt die ermittelten Temperaturmesswerte beispielsweise an eine Vergleichseinrichtung zum Vergleichen der ermittelten Messwerte mit entsprechenden in einer Speichereinrichtung hinterlegten Referenzwerten. Basierend auf den Vergleichswerten wird die Bearbeitung des Gussrohteils gesteuert bzw. geregelt. Das bedeutet, dass sofern das Gussrohteil beispielsweise auf eine Temperatur von unter 50 °C abgekühlt ist, ein Aufbringen des fließfähigen Mediums zumindest in definierten Abschnitten des Gussrohteils beendet wird.

Furthermore, a method for producing a cast component is claimed, having at least the following steps:

• Casting a casting blank by means of a casting machine within at least one cavity of the casting machine,
• Measuring the temperature of at least one section of the cast blank by means of a temperature measuring device, and
• Processing of the cast blank by means of a flowable medium applied to the cast blank by a processing device. The cast component itself is advantageously a machined raw cast part, the raw cast part being cast or manufactured within a cavity of the casting machine and being transferred to a machining device for machining. Grippers or transport means are advantageously used to transfer the cast raw part from the cavity of the casting machine to the processing device, the casting machine and the processing device advantageously being units or devices of a common casting cell. After machining the cast raw part, the cast component is created, which can consequently be integrated into a component group as a finished component. A temperature measuring device is used to measure the temperature in order to determine in which sections the casting blank is to be processed by means of the flowable medium, wherein the temperature measuring device can in particular be a temperature measuring system, such as a temperature sensor or a temperature sensor, etc. or possibly also a thermal imaging camera. The temperature measuring device determines the temperature of the cast blank advantageously in real time and transmits the determined temperature measurement values, for example, to a comparison device for comparing the determined measurement values with corresponding reference values stored in a storage device. The processing of the cast blank is controlled or regulated based on the comparison values. This means that if the casting blank has cooled down, for example, to a temperature below 50 ° C., application of the flowable medium is terminated at least in defined sections of the casting blank.

With the method according to the invention, it is advantageously possible to at least cool or straighten the casting blank by means of the flowable medium. A first processing step is consequently also advantageous at the same time during the cooling for processing the cast blank on the way to the cast component, namely the straightening of the cast blank, the term straightening in the context of the invention is understood to mean a targeted temporal and local variable cooling of the cast blank. In particular, taking into account that both the actual casting process itself as well as the subsequent cooling phase can be understood as the cause of a cast part distortion, it is possible, thanks to the application of the flowable medium, to cool individual sections or positions of the cast blank, in particular, through targeted temporally and spatially variable cooling To generate stresses through an inhomogeneous temperature distribution. As a result, the distortion that occurs can be counteracted in a targeted manner by cooling or cooling, or targeted straightening can be brought about. As a result, a straightening process that is required after the cooling process is advantageously dispensed with. In the context of the invention, it is advantageously possible for the cooling or cooling process and the straightening process to be designed in particular with the aid of simulations.

It is also conceivable that the flowable medium is applied to the casting blank in the form of a spray mist, the application of the medium being controlled in terms of time, location and / or quantity by means of a control device. Accordingly, the nozzle device can be controlled by means of the control device, wherein the nozzle device itself can be arranged rigidly with respect to the raw cast part to be cooled or also movable relative to it. If, in particular, the nozzle device, whereby a plurality of nozzle devices can also be arranged within the spray device, is or are arranged statically or immovably in the spray device, the cast blank itself is advantageously in the direction of a transport path along this at least one nozzle device or on this nozzle device moved past and advantageously rotated about its longitudinal axis, so that a wetting of any section of the cast blank is made possible by means of the flowable medium atomized by the nozzle device. It is also conceivable that the nozzle device itself is also movably arranged relative to the cast blank, the nozzle device advantageously being movably arranged in three translational degrees of freedom and in three rotational degrees of freedom relative to or movably relative to the cast raw part to be cooled within the spray device. It is also conceivable that not only the nozzle device itself, but also the cast blank to be cooled can be moved within the spray device are arranged, so that consequently the cast raw part and also the nozzle device can be moved relative to one another. In the case of a plurality of nozzle devices within the spray device, each nozzle device is advantageously controlled separately by means of, for example, the control device, so that it is conceivable that each nozzle device can transfer a mutually different amount of flowable medium at different time intervals and different mixing ratios to separate sections or areas of the fluid to be cooled Casting blank applies. The flow rate of the flowable medium per nozzle or per nozzle device is advantageously monitored and adjusted in real time, the control device being used in particular for this purpose. The control device itself is advantageously a unit of the processing device and is connected to the nozzle device in a wired or wireless data communication manner. It is also conceivable that when a plurality of nozzle devices is present, some of these nozzle devices are arranged statically or immovably, while others of these nozzle devices are arranged dynamically or movably within the spray device. Accordingly, it is conceivable that the spray device has a dynamic nozzle field or a static nozzle field or, in addition to a static nozzle field, also a dynamic nozzle field.

It is also possible for a geometry measuring device to measure at least one geometry of the cast blank. The geometry of the cast raw part is, for example, a length or a width or an angle or a comparable dimension, the geometry measuring device advantageously being a unit of the processing device or an independent unit or device which is connected to the processing device in a wireless or wired manner for data communication. The geometry measuring device is advantageously an optical distance measurement. The geometry measuring device is advantageously connected to at least one comparison device and / or a control device in a wireless or wired manner in a data-communicating manner in order to transmit the determined or measured geometry values and in particular actual geometry values to the comparison device and / or the control device.

In the context of the invention, a comparison device compares the temperature value measured by the temperature measuring device with a reference temperature value and / or the geometry value measured by the geometry measuring device with a reference geometry value. The comparison device itself can be, for example, a unit or a device of the processing device or also an independent or independent device which is only connected to the processing device in a wireless or wired manner for data communication. The comparison device is advantageously connected to the control device, in particular in a data-communicating manner. The reference values, such as in particular the reference geometry values and / or the reference temperature values, are stored, for example, in a storage device of the comparison device, wherein the storage device can also be an independent device for the comparison device, which is connected to the comparison device in a wireless or wired manner to communicate data. The comparison device itself is used to query the TARGET-ACTUAL or the target-ACTUAL comparison, the values determined by the temperature measuring device or the geometry measuring device being compared with the stored or stored reference values. The comparison device advantageously also serves as an evaluation device and, on the basis of the comparison between the target values and the actual values, determines whether machining of the cast blank is required in defined sections of the cast blank or not. This means that based on the determined values, i.e. the temperature and / or geometry values, it is determined in which section of the cast blank a flowable medium has to be applied in which mixing ratio over what period of time, in particular in order to allow the cast blank to cool sufficiently for subsequent deburring as well as to achieve straightening of the cast raw part.

So it is also conceivable that after determining at least one geometry value and / or in particular at least one temperature value of the cast blank, the at least one determined date is compared with values advantageously stored in a storage device, such as in a database with regard to geometry and / or temperature , whereupon a corresponding stored or stored processing program and in particular a spray program can be initiated or activated. This means that it is possible for different spray programs to be stored for different data relating to the temperature and / or the geometry of different cast components to be produced are, which can be run in consideration of the determined values or data. This advantageously avoids constant measurement or determination of individual values, such as the temperature and / or the geometry of the cast blank. The spray program or spray recipe regulates, for example, which nozzle device has to be controlled, which nozzle device has to apply which amount of medium in which mixing ratio to the cast raw part and / or how the nozzle devices to the cast raw part or the cast raw part is to be moved to the nozzle devices.
In the context of the invention, it is also conceivable that the casting blank is roughly deburred and finely deburred during a machining step. This means that advantageously the entire deburring takes place after cooling in one work step and advantageously within the processing device. Additional fine deburring after coarse deburring by means of an additional device is advantageously avoided according to the present invention, so that the machining of the cast raw part into a cast component can be carried out inexpensively and also in a reduced time.

Furthermore, it is conceivable that the cast component is produced within a casting cell according to the preceding claim 5. Consequently, it is advantageously possible for the cast component to be manufactured within a casting cell according to the aforementioned type, so that the casting blank does not need to be transported out of the casting cell for deburring and, in particular, for fine deburring and / or additional straightening of the cast blank, which advantageously makes transport routes and Transport costs can be saved.

A processing device according to at least one of the preceding claims 1 to 4 and consequently according to the above-mentioned type is advantageously used as the processing device for processing the cast blank.

The method described results in all the advantages that have already been described for a processing device and / or a casting cell according to the first aspects of the invention.

Figur 1

eine Funktionsskizze einer Ausführungsform einer erfindungsgemäßen Bearbeitungsvorrichtung,

Figur 2

ein Flussdiagramm hinsichtlich einer Ausführungsform des Verfahrens zum Bearbeiten des Gussrohteils, und

Figur 3

ein Flussdiagramm hinsichtlich einer weiteren Ausführungsform des Verfahrens zum Bearbeiten des Gussrohteils.

An embodiment of a machining device according to the invention and the sequence or the method for machining the cast raw part are explained in more detail below with reference to drawings. They each show schematically:

Figure 1

a functional sketch of an embodiment of a machining device according to the invention,

Figure 2

a flowchart with regard to an embodiment of the method for processing the casting blank, and

Figure 3

a flowchart with regard to a further embodiment of the method for processing the cast blank.

Elements with the same function and mode of operation are in the Figures 1 to 3 each provided with the same reference numerals.

In the Fig. 1 a functional sketch of an embodiment of a machining device 1 for machining a cast blank 20 is shown schematically. The processing device 1 has a spray device 2, having a nozzle device 3 and in particular a plurality of nozzle devices 3.1 to 3.7. The nozzle devices 3 or 3.1 to 3.7 are arranged along a transport path T within the processing device 1 in order to apply a flowable medium M to at least sections or areas of the cast blank 20. The individual nozzle devices 3, 3.1 to 3.7 are advantageously arranged movably in the direction of movement B and in particular in the X, Y and / or Z directions or in the direction of the X, Y, Z axes relative to the cast blank 20 to be cooled . Furthermore, it is possible for the nozzle devices 3, 3.1 to 3.7 to be rotatable or rotatable about the X, Y and / or Z axes and consequently movable in the Dx, Dy and / or Dz direction of rotation. However, it is also conceivable that the individual nozzle devices 3, 3.1 to 3.7 are arranged statically within the processing device, so that only the raw cast part 20 moves along the transport path T.

The casting blank 20 advantageously has a longitudinal axis L, around which the casting blank 20 can rotate or rotate in the direction of rotation D, so that it can be applied of the flowable medium M on any section of the cast blank 20 can be made possible. It is also conceivable that the nozzle devices 3, 3.1 to 3.7 can be arranged or moved in a rotationally movable manner around the casting blank 20, so that consequently the nozzle device 3 or the nozzle devices 3.1 to 3.7 can rotate about the longitudinal axis L of the casting blank 20. The nozzle devices 3, 3.1 to 3.7 advantageously have at least three degrees of freedom in the translational direction and consequently in the X, Y and Z directions and three degrees of freedom in the rotational direction and advantageously consequently in the Dx, Dy and Dz directions of rotation.

The processing device 1 also has a temperature measuring device 4 and a geometry measuring device 5, which are arranged along the transport path T in order to measure or measure a temperature and in particular a surface temperature or a geometry, such as a length or a width or an angle, of the cast blank 20 . to be able to determine. The temperature measuring device 4 and / or the geometry measuring device 5 are advantageously arranged to be movable relative to the casting blank 20 in order to be able to travel over any section of the casting blank 20 in order to consequently be able to determine the temperature or the dimensions of the casting blank 20 in any section. With regard to the possible degrees of freedom of movement of the temperature measuring device 4 and / or the geometry measuring device 5, reference is made to the aforementioned degrees of freedom of movement of the nozzle devices 3, 3.1 to 3.7, it being assumed here that the temperature measuring device 4 and / or the geometry measuring device 5 can also perform corresponding movements . This means, as already mentioned with regard to the nozzle devices 3, 3.1 to 3.7, that it is conceivable that the temperature measuring device 4 and / or the geometry measuring device 5 can also be arranged statically and consequently immovably relative to the cast blank 20, however, it is necessary in this case that at least the cast blank 20 is moved in the translational direction T or in the rotational direction D, that is, in the rotational direction D about its longitudinal axis L. Furthermore, it is conceivable that the geometry measuring device 5 and / or the temperature measuring device 4 consists of a plurality of measuring devices which are arranged in the processing device 1 at a distance from one another.

The individual nozzle devices 3, 3.1 to 3.7 as well as the temperature measuring device 4 and the geometry measuring device 5 are advantageously connected to a comparison device 10 via data communication lines 6. It is also conceivable that the data transmission between the nozzle device 3, 3.1 to 3.7 of the temperature measuring device 4 and / or the geometry measuring device 5 to the comparison device 10 can take place wirelessly via, for example, Bluetooth or WLAN, etc. The comparison device 10 advantageously serves to compare the actual values obtained from the temperature measuring device 4 and / or the geometry measuring device 5 with regard to the temperatures, in particular the surface temperature, or the individual dimensions or geometry values of the cast blank 20 with, in particular, advantageously a storage device 10.1 of the comparison device 10 stored or stored reference values to be compared. The comparison device 10 also advantageously has an evaluation device 10.2, which is used to determine which section of the raw cast part 20 still has to be exposed to the flowable medium M and / or which mixing ratio the flowable medium M must have and / or in which time frame the respective section of the raw cast part 20 is to be wetted with the flowable medium M, in particular to achieve continuous and uniform cooling of the raw cast part 20 and advantageously to avoid warping of the component during cooling.

Furthermore, in the Fig. 1 A control device is shown with the reference numeral 7, which advantageously serves to control the individual nozzle devices 3, 3.1-3.7 of the spray device 2 as required. So it is conceivable that after determining the temperature or at least one temperature value of the casting blank 20 and / or after determining a geometry or at least one geometry value of the casting blank 20, the control device 7 is initiated, for example at least some of the nozzle devices 3, 3.1-3.7 to activate or deactivate, to control or regulate their spray duration and / or their mixing ratio of the flowable medium, etc.

In the Fig. 2 a flowchart is shown with regard to a method for machining a casting blank, wherein in a step S1 the casting blank, coming from the casting machine, is made available to the processing device. In a subsequent step S2, the cast blank and in particular at least one section of the cast blank with the flowable medium, which is in particular a water-air mixture, flows against and in particular wetted by means of the nozzle device. In a subsequent step S3, the temperature and in particular a surface temperature of at least one section of the cast blank is advantageously measured or recorded by means of the temperature measuring device and fed to a comparison device, which in a step S4 the determined temperature measured value, which can also be referred to as the actual temperature value , with a reference temperature value and in particular a limit value, which is advantageously stored in a memory device of the comparison device and can also be referred to as the temperature setpoint value. If the measured ACTUAL temperature value is greater than the reference temperature value, the procedure continues with step S2 and the corresponding section is further wetted with the flowable medium until the measured ACTUAL temperature value reaches the reference temperature value or limit value, whichever is advantageously 50 ° C or less. If the measured actual temperature value consequently reaches the limit value, the comparison device knows that at least the measured section of the cast blank has cooled down sufficiently so that the cast blank can be finely deburred. For this purpose it is possible that the cast blank and in particular the cooled cast blank is removed from the spray device in a further step S5 and can be fed to a deburring area. Consequently, in a last step S6, the deburring, which is in particular a combination of a coarse deburring and a fine deburring, takes place. After deburring the raw cast part, a cast component has been created, which can consequently be arranged in a component group for the production of an end product. It is also conceivable that step S5 and in particular the removal of the cooled casting blank from the spray device is omitted, in particular if the deburring itself and in particular the fine deburring or coarse deburring, as shown in step S6, within the spray device, which in particular is a Is part of the processing device takes place.

In the Fig. 3 a flowchart of a further embodiment of a method for processing a casting blank is shown, with straightening of the casting blank being shown in addition to the pure cooling of the casting blank and in particular a section of the casting blank. The casting blank is advantageous after production in a cavity and in particular a casting machine during step S1 of the processing device, wherein in the subsequent step S7 the casting blank is advantageously measured with a geometry measuring device, so that, for example, its length and / or width and / or its angle and in particular its entire geometry are measured can. It is also conceivable that at least temporarily during the measurement of the cast blank or during the determination of at least one geometry value of the cast blank, this cast blank is rotated or moved within the measuring device in order to be able to measure individual areas or sections of the cast blank. However, it is also conceivable that only the measuring means or the at least one measuring means for determining the at least one geometry value can be moved along at least one section of the cast blank. Accordingly, it is also possible that both the casting blank and the at least one measuring means can be moved relative to one another.

During the evaluation of the measurement data with regard to the geometry of the casting blank by means of a comparison device, as in particular in step S8.1 of FIG Fig. 3 shown, the casting blank can advantageously be transported or transferred to a spraying device, for example, in parallel or at the same time as the evaluation method or the method of the TARGET-ACTUAL comparison, as shown in particular with step S8.2. Consequently, it is conceivable that the device for measuring the geometry and the spray device are devices that are separate from one another, between which the raw cast part can be transferred for processing. However, it is also conceivable that the measuring device and the spraying device represent a common device for processing the raw cast part, so that consequently step S8.2 would be omitted. On the one hand, the comparison device evaluates the determined geometry values with regard to reference values advantageously stored in a storage device of the comparison device and, on the other hand, checks in a subsequent step S9 whether the possibly determined geometry deviations are within predetermined tolerance ranges. If the determined or measured dimensions or geometries correspond to the specified reference values or if these are within permissible tolerance limits, then in a subsequent step S3 the temperature and in particular the surface temperature of the cast blank is advantageously determined with a temperature measuring device. The determined Temperature measured values, which can also be referred to as actual temperature values, are in turn transmitted to the comparison device, which compares the actual temperature values obtained or measured with a corresponding reference value or temperature limit value and in particular a set temperature value in a step S4 compares, the temperature limit value (s) in turn being / are advantageously stored in a memory device of the comparison device. If the measured actual temperature value is greater than a predetermined temperature limit value, at least one section and advantageously individual sections of the cast blank are exposed to the flowable medium, as shown in particular in step S2. The temperature measurement by means of the temperature measuring device takes place advantageously during or also after the casting blank is exposed to the flowable medium, in order to be able to determine whether the temperature of the cast blank reaches the predetermined temperature limit value. As a result, a constant temperature measurement, as shown in step S3, and a comparison of the determined temperature values with the stored temperature limit value, as shown in step S4, advantageously take place while the casting blank is being applied by means of the flowable medium, so that the temperature limit value is reached in real time can be determined. If the comparison device determines that the actual temperature value has been reached at the temperature limit value or below the temperature limit value, the cast blank and in particular the cooled cast blank is advantageously removed from the spray device, as shown in step S5, and fed to a deburring process for coarse and fine deburring, the deburring process itself can also be carried out within the spray device.

If the geometry measuring device determines a geometry or dimensional deviation in the previous step S8.1, whereby the determined dimensional deviation is also not within specified tolerance limits, as shown in step S9, a targeted application of individual sections of the cast blank with the flowable medium, as in Step S10 shown initiated. After cooling or spray cooling the casting blank, it can be removed from the spray device again, as shown for example in step S11, and fed to a measuring device for measuring the geometry and determining at least one geometry value of the casting blank. The step S11 would consequently be used to transport the Cast raw part described. However, it is also conceivable that, as already mentioned above, the measuring device and the spraying device form a common device, so that it is not necessary to transport the raw cast part between the individual steps of measuring and cooling. In this case, step S11 could be understood to mean handling the raw cast part after or at least temporarily during the targeted application or flow of the individual sections of the cast blank by means of the flowable medium, such that it moves, for example, within the combined measuring / and spraying device in particular can be rotated in different directions about a certain axis of rotation or longitudinal axis. In this case, step S11 and step S12 explained below would advantageously coincide.

In step S12 the Fig. 3 For example, during and advantageously after the targeted flow of the pourable medium onto the casting blank, a geometry measurement by means of the geometry measuring device takes place in order to again obtain actual geometry values which are transmitted to the comparison device. This in turn carries out a TARGET-ACTUAL comparison of the determined geometry values in a step S13.1. During the evaluation of the data or measured values, it is conceivable that the cast blank is removed from the measuring device and transferred to a spray device, as shown in particular with step S13.2, which advantageously runs at the same time or in parallel with step S13.1. However, if the measuring device and the spraying device are a common device, step S13.2 means in particular handling of the cast part in which, during the measurement and / or the evaluation of the measurement data, spray cooling and / or continuous measurement of the cast raw part and a Determine whose geometry data takes place. If the determined actual geometry values correspond to the target geometry values advantageously stored in a memory device or if the determined actual geometry values are within specified tolerance limits, step S3 already described above takes place after step S14 and consequently the temperature measurement by means of the temperature measuring device instead of. Otherwise, it is determined in a step S15 whether at least one of the possible discharge criteria is met. Ejection criteria are, for example, such strong deformations or areas or sections of the cast blank that have already cooled down too much that this cannot be further straightened by means of the flowable medium or can be processed to produce a corresponding cast component. As a result, the casting blank, which can no longer be machined, is discharged from the machining device in a step S16 and fed to a reject container, as shown in step S17. If the raw cast part does not meet the discharge criteria, the flowable medium continues to be applied to it in defined sections or areas, so that straightening of the component, as initiated with step S10, is continued.

With the processing device according to the invention and the method according to the invention for processing or manufacturing the cast component, a deburring step and consequently a press and a punching tool are advantageously saved, since in particular the coarse deburring and the fine deburring can be carried out in one processing step after the casting blank has cooled down. In addition, a later manual straightening of the parts is advantageously no longer necessary, in particular because the components can be straightened by means of the flowable medium that is also used for cooling. Consequently, the transport and storage costs are advantageously reduced.

List of reference symbols

1

Machining device

2

Spray device

3, 3.1 - 3.7

Nozzle device

4th

Temperature measuring device

5

Geometry measuring device

6th

Data communication line

7th

Control device

10

Comparison facility

10.1

Storage facility

10.2

Evaluation device

20th

Casting blank

B.

Direction of movement

D.

Direction of rotation

Dx

Direction of rotation around the X axis

Dy

Direction of rotation around the Y-axis

Dz

Direction of rotation around the Z axis

L.

Longitudinal axis

M.

flowable medium

S1

Provision of the casting blank

S2

Exposing the cast blank with the flowable medium

S3

Measure the temperature

S4

Compare the actual temperature value with the temperature limit value

S5

Removal of the cooled casting blank

S6

Deburring

S7

Geometry measurement

S8.1

TARGET-ACTUAL comparison

S8.2

Handling of the casting blank

S9

Comparison of the dimensional deviation with a specified tolerance

S10

Targeted exposure of the cast raw part with the flowable medium

S11

Handling of the casting blank

S12

Geometry measurement

S13.1

TARGET-ACTUAL comparison

S13.2

Handling of the casting blank

S14

Comparison of the determined dimensional deviation to a specified tolerance

S15

Determination of whether at least one discharge criterion is met

S16

Removal of the cast part

S17

Committee

T

Transport path

X

X axis

Y

Y axis

Z

Z axis

Claims (12)

1. Processing apparatus (1) for the processing of a cast raw casting (20), having a spraying apparatus (2) for the cooling of the raw casting (20), which spraying apparatus has at least one nozzle device (3, 3.1 - 3-7) for the at least temporally, spatially or quantitatively variable application of a flowable medium (M) to at least one section of the raw casting (20), and a temperature measurement device (4) for the measurement of the temperature at at least one section of the raw casting (20), and a control device (7) for the control and regulation of the nozzle device (3, 3.1 - 3-7) in a manner dependent on the measured temperature,
   characterized in that
   the nozzle device (3, 3.1 - 3-7) has at least one two-substance nozzle for the application of two mutually different flowable substances to the raw casting (20), wherein one of the flowable substances is water, wherein, by way of the two-substance nozzle, the two flowable substances can be combined in quantitatively variable fashion to form the flowable medium (M), wherein the control device (7) is configured to control a quantity of the spray mist which has water such that the water evaporates on the raw casting (20) without residue, wherein the processing apparatus (1) has a geometry measurement device (5) for the measurement of at least one geometry of the raw casting (20).
2. Processing apparatus (1) according to Claim 1,
   characterized in that
   the processing apparatus (1) has a comparison device (10) for the comparison of the measured temperature value with a reference temperature value and/or of the measured geometry value with a reference geometry value.
3. Processing apparatus (1) according to either of the preceding Claims 1 and 2,
   characterized in that
   the spraying apparatus (2) has a multiplicity of nozzle devices (3, 3.1 - 3-7) which are arranged so as to be static or so as to be movable relative to the raw casting to be cooled, which nozzle devices are arranged spaced apart from one another within the spraying apparatus (1).
4. Processing apparatus (1) according to any of the preceding claims,
   characterized in that
   the spraying apparatus (2) has a sprue gripper for the positioning of the raw casting (2) relative to the nozzle device (3, 3.1 - 3-7).
5. Casting cell for the production of a cast component, having at least one casting machine with at least one cavity for the generation of a raw casting, and having at least one processing apparatus (1) according to at least one of the preceding Claims 1 to 4.
6. Method for the production of a cast component, having at least the steps:

   - casting a raw casting (20) by way of a casting machine within at least one cavity of the casting machine,

   - measuring the temperature of at least one section of the cast raw casting (20) by way of a temperature measurement device (4), and

   - processing the cast raw casting by way of a flowable medium (M) applied to the raw casting (20) by a processing apparatus (1), wherein the flowable medium (M) is applied in the form of a spray mist composed of two flowable substances, wherein one of the two flowable substances is water, by means of a two-substance nozzle to the raw casting (20) such that the water evaporates on the raw casting (20) without residue, wherein a geometry measurement device (5) measures at least one geometry of the cast raw casting (20).
7. Method according to Claim 6,
   characterized in that
   the raw casting (10) is at least cooled or straightened by way of the flowable medium (M).
8. The method according to either of the preceding Claims 6 and 7,
   characterized in that
   the flowable medium (M) is applied in the form of a spray mist to the raw casting (20), wherein the application of the medium (M) is temporally, spatially and/or quantitatively controlled by way of a control device (7).
9. Method according to any of the preceding Claims 6 to 8,
   characterized in that
   a comparison device (10) compares the temperature value measured by the temperature measurement device (4) with a reference temperature value, and/or compares the geometry value measured by the geometry measurement device with a reference geometry value.
10. Method according to any of the preceding Claims 6 to 9,
    characterized in that
    the raw casting (20) is subjected to coarse deburring and fine deburring during one processing step.
11. Method according to any of the preceding Claims 6 to 10,
    characterized in that
    the cast component is produced within one casting cell according to the preceding Claim 5.
12. Method according to any of the preceding Claims 6 to 11,
    characterized in that,
    as a processing apparatus (1) for the processing of the raw casting, use is made of a processing apparatus (1) according to at least one of the preceding Claims 1 to 4.

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