Method and apparatus for processing a component

Abstract

In a method for processing a component (10, 12) in a processing zone (14), the position of the component (10, 12) is changed after a part of the entire processing duration has elapsed.

Description

[0001] Method and device for machining a component

[0002] The invention relates to a method for machining a component in which the component is placed on a supporting structure in a starting position, moved through at least one machining zone in this starting position, and machined in this starting position through the supporting structure in a line-of-sight process.

[0003] When processing or treating components or workpieces in line-of-sight processes (e.g., blasting, spraying with gases, liquids, solids, or combinations thereof), the components are placed on open supporting structures and guided into the processing zone. These open structures include perforated sheets or other open structures such as braided bands or belts. Depending on the type of processing, these braided bands or belts can also be made of wire (metal, plastic, or even organic materials). The processing takes place through the supporting structure (e.g., perforated sheet, braided band, or belt).The machining process can be performed from below, but also from other directions, such as from above, laterally, or at an angle to horizontal and vertical planes. Only those areas of the component that are directly accessible for the line-of-sight process can be machined, meaning they are not covered or shadowed by the supporting structure. In shadowed areas, machining is incomplete or does not occur at all, and the supporting structure becomes visible as a shadow on the component surface. Besides resulting in inconsistencies in the visual appearance, this can also create local functional inhomogeneities on the surface, for example, due to unremoved dirt, deposits, or coatings, which can have a detrimental effect in subsequent processing steps (e.g., painting).

[0004] The object of the present invention is to provide a method and a device for machining a component, with which negative effects of shading by a supporting structure can be minimized when machining a component in a line-of-sight process.

[0005] According to a first aspect, the solution to this problem is achieved by a method having the features of claim 1.

[0006] According to the invention, a component is initially placed in a starting position on a supporting structure and, in this starting position, moved along the supporting structure through at least one machining zone. During this initial position, the component is machined in the machining zone through the supporting structure in a line-of-sight process. After a portion of the predetermined machining time has elapsed, the position of the component relative to the supporting structure is changed. Machining does not need to be interrupted during this change of position; that is, it can be continued continuously. By changing the position of the component during the machining process, it is moved, pivoted, or otherwise arranged on the supporting structure, so that previously covered areas of the component can be machined, thus minimizing shadowing effects.

[0007] The change of position can therefore take place within the machining zone. Machining would then not be interrupted and would not need to be continued. However, it can also be advantageous to perform the change of position outside the machining zone, as fixtures such as obstacles, wedges, etc., create additional shadowing effects. Furthermore, all elements within the machining zone are subject to constant wear. It is therefore advantageous if the change of position occurs between successive machining zones. It is also possible for machining to continue simultaneously, be interrupted and then resumed, or to be continued in a subsequent machining zone.

[0008] The change in position of the component can be a displacement in the direction of transport, perpendicular to the direction of transport, at an angle to the direction of transport, or by a rotation of the component relative to the supporting structure. The change in position can also occur when the component is rolled over on the supporting structure.

[0009] Advantageous embodiments of the invention are described in the description, the drawing and the dependent claims.

[0010] According to a first advantageous embodiment, the change in position can be effected by at least one obstacle. This obstacle can be stationary or inserted into the transport path of the component. Such an obstacle can, for example, be designed as a wedge, triangular body, roller, or the like to effect the required change in the component's position relative to the supporting structure. An obstacle can cause the component to slow down, rotate, or pivot, or it can increase the path traveled by the component. A change in the contact points, and thus a change in the adhesive and frictional forces for component transport, leads to slipping, tilting, or displacement of the component.

[0011] When an obstacle is inserted into the transport path of the component, this can cause a brief delay or even a temporary stop of the component while the supporting structure continues to move. This can result in other, already processed areas of the component being obscured after the obstacle changes position. A stationary obstacle or one that can be inserted into the transport path of the component can be designed as a holding element, pin, beam, or a flat braking structure in a rigid or flexible form. The obstacle can be inserted into the transport path of the component from above, below, or from the sides.

[0012] According to a further advantageous embodiment, the obstacle can be inserted based on prior, automated component recognition. Such component recognition can be achieved, for example, using light barriers, capacitive or inductive sensors, cameras with component identification, light / dark comparison, or a line scanner. This allows the obstacle to be inserted into the transport path specifically for each component and / or depending on the throughput.

[0013] According to a further advantageous embodiment, the change in position can be achieved by altering the topography of the supporting structure. The topography of the supporting structure, in this context, refers to its surface design. In a horizontal belt conveyor, the topography of the supporting structure is typically a flat, horizontal surface. By modifying the topography, this surface can be designed to, for example, rise, fall, and / or tilt to one side or the other. If the topography of the supporting structure rises and / or falls, for instance, transversely or obliquely across its entire width or in certain areas, this can lead to a change in the contact points and the weight distribution of the component, which in turn generates a change in static and frictional forces that cause a change in the component's position.

[0014] By incorporating wedges, moving load-bearing structures can be designed, for example, to rise. A subsequent steep drop after the rise can be advantageous because the component then tilts over an edge-like highest point and can also slip. This highest point can be perpendicular to the direction of movement, linear, or asymmetrical, for example, inclined to the component's direction of movement, which can cause not only slippage in the direction of movement but also lateral movement. By changing the topography of the load-bearing structure, a change in the component's position can be achieved through partial rotation by slightly raising the load-bearing structure (e.g., the wire mesh belt) in a specific area (e.g., at the left edge of the belt in the direction of movement). This alters the contact points and the weight distribution at these points.If, for example, the supporting structure in the adjacent section simultaneously slopes downwards, this can lead to a rotation or partial rotation of the component due to a shift in the contact points. This effect can also be achieved or enhanced by having the supporting structure rise in a subsequent section of the strip, for example, at the right edge of the strip, which in turn changes the contact points. This improves or homogenizes the machining appearance, as previously shadowed areas of the component lift off the supporting structure and the component rotates. This approach is particularly suitable for heavy components.

[0015] According to a further advantageous embodiment, the change in position of the component can be effected or supported by oscillation, vibration, and / or the application of impact forces to the supporting structure. For example, in a continuously operated system, such as a wire belt in a continuous shot blasting system, the supporting structure can be set into a vertical movement perpendicular to the conveying direction in order to change the position of the component on the supporting structure without interrupting the transport of the component in the continuous processing process. The movements can be applied by oscillation, impact, or in various local or spatial combinations. Here, oscillations are defined as oscillating movements with a frequency greater than 1 Hz and an amplitude between approximately 1 mm and several cm.Impact forces are applied at a frequency of <1 Hz and can be applied, for example, at fixed or variable time intervals. Here, too, the variable time intervals can be determined part-specifically by using position information acquired via sensors to control the impact frequency and amplitude. Impact forces can, in particular, generate an amplitude of >1 cm.

[0016] Impact movements can be applied, for example, by means of hammers, either at specific points, along lines, or over a larger area. In another embodiment, half a movement cycle of an impact movement can be applied. One movement cycle consists of the lifting / impact of a device for impulse transmission (e.g., a hammer) and the lowering or retraction of this device after contact or impact with the supporting structure or component. The effect of the impact can be influenced by varying the duration of half a movement cycle (e.g., lifting or lowering a hammer). Thus, a sudden impact can cause the component to jump, while a very slow impact does not transmit any impulse from the device to the component, but instead, for example, produces a vibration.temporarily causing an upward rise or shift of the supporting structure, which consequently leads to a change in the position between the supporting structure and the component.

[0017] A sudden, impact-like movement can also be applied to the supporting structure or component by a rotating device (eccentric). The rotation can be in the same or opposite direction to the movement of the supporting structure and the component. To mitigate the impact on the supporting structure or component, the device can be equipped, for example, with a brush or similar element that makes contact with the component. The combination of vibration and sudden impact can cause components on the supporting structure to become more easily movable and thus be able to be repositioned on the supporting structure with less force by an impact. The sudden movement can be transferred to the supporting structure or act directly against the component.

[0018] Vibrations can be transmitted to the moving supporting structure through the use of vibration generators such as eccentric motors.

[0019] According to a further advantageous embodiment, a supporting structure can be used that comprises a first or a second supporting substructure, wherein the change in position relative to the supporting structure is effected by transferring the component from the first supporting substructure to the second supporting substructure. If, for example, the transport directions of the first and the second supporting substructure are oriented at an angle to each other, or if the substructures are laterally offset and / or designed differently, the component comes to rest on different areas after being transferred from the first to the second supporting substructure.

[0020] It can also be advantageous if the bearing surfaces of the first and second supporting substructures are designed differently. For example, the second substructure can be slightly offset laterally relative to the first substructure and / or have a different grid pattern, hole spacing, strap spacing, or similar features.

[0021] This allows the component to transition from one load-bearing substructure to a second load-bearing substructure between successive machining zones, or within, before, and / or after a machining zone (e.g., separate, consecutively arranged belts). An identical effect can also be achieved by deflecting the first load-bearing substructure downwards or to the side (e.g., angular offset).

[0022] Transferring a component from one supporting structure to another can be achieved, for example, by transferring it from one belt to another in a continuously operated wire mesh belt blasting system. The offset between the belts in the conveying direction changes the contact points, thus altering the shading and ensuring more uniform processing. A similar effect can be achieved by using different supporting elements in the two supporting structures (wire mesh belts). A similar effect is also achieved if a continuous belt is guided downwards in the area between two processing / treatment zones or has an offset that shifts the component's position relative to the shading structures.

[0023] The second band can also be arranged at a slight angular offset, so that in addition to the transverse change in position, a slight rotation also leads to the required change in position.

[0024] In all these cases, the position of the component on the supporting structure is shifted using technical measures. This ensures that shadowing after machining is significantly reduced. Besides improving the visual appearance, this also achieves a more uniform (homogenized) surface finish, which can have a beneficial effect on the results of subsequent machining steps.

[0025] According to a further advantageous embodiment, the change in position can be effected by rotating elements, in particular rollers or brushes. Such rotating elements can engage the supporting structure from above or below, thereby allowing the components to be moved or lifted briefly or over a longer distance, either at specific points, along a line, or across an area. Furthermore, gears or brush-like structures acting from below through the supporting structure can extend the path of the component relative to the supporting structure without the component moving faster through the overall arrangement than the supporting structure. Rotating elements can extend transversely to the direction of transport and act on the component from below or above, and can be driven by an external drive or by the movement of the supporting structure.

[0026] According to a further advantageous embodiment, the position of the component can be changed by applying a jet, in particular a jet of compressed air.

[0027] It can be advantageous if the change in position involves shifting the component by at least two units of the solid components of the supporting structure. The ratio of wire area to free area in a wire mesh belt is approximately 1:10 to 1:20. If a component is shifted by only one wire width (the width of the supporting structure), the surface may remain untreated due to the sometimes oblique angle of the abrasive material. However, if the component is shifted by twice the wire width, shadowing is minimized.

[0028] According to a further aspect, the present invention relates to a device for carrying out a method of the type described above, wherein the device is provided with a supporting structure movable in the transport direction, which is guided through at least one processing zone in which a processing means, for example a jet turbine, for a line-of-sight process is located. Furthermore, a device for changing the position of the component relative to the supporting structure during processing is provided. The device can be a passive obstacle as described above or an obstacle that can be actively introduced into the transport path of the supporting structure.

[0029] The present invention is described below purely by way of example with reference to advantageous embodiments and the drawings. The drawings show:

[0030] Fig. 1 shows a schematic view of a device for machining a component with a structure moving through two machining zones;

[0031] Fig. 2 shows a device for machining a component with two substructures moving through two machining zones;

[0032] Fig. 3 shows a schematic cutaway side view through a supporting structure;

[0033] Fig. 4 shows a top view of two supporting substructures;

[0034] Fig. 5 shows a side view of a supporting structure with a wedge-shaped obstacle;

[0035] Figs. 6 and 7 each show a top view of a supporting structure with a backing;

[0036] Figs. 8 and 9 each show a top view of a supporting structure with an obstacle projecting laterally into the component path; Figs. 10 and 11 each show a top view of a supporting structure with a backing;

[0037] Figs. 12 to 14 each show a top view of a supporting structure with an obstacle projecting laterally into the component path;

[0038] Figs. 15 to 17 show a partially cutaway side view through a load-bearing

[0039] Structure with an obstacle.

[0040] Fig. 1 shows a system for machining a component 10, 12, which has a machining chamber 14. Machining units 15, 17, and 19 for a line-of-sight process are arranged on the underside and optionally also on the top side of the chamber. The illustrated embodiment uses centrifugal wheels for blasting workpieces with an abrasive. However, it is understood that any unit can be used for line-of-sight machining. The machining units for the line-of-sight process can be arranged in a bottom-top-bottom configuration, as shown in the figures. Any other arrangement is also possible, e.g., directly above and below, or in pairs diagonally from above and diagonally from below, or in multiple machining zones in succession in the same or different arrangements, etc.

[0041] By rotating the centrifugal wheels, abrasive media can be directed onto the components in a blast cone 15', 17', and 19', whereby the components 10 and 12 are moved from an input station 20 through the blast chamber 14 to an output station 22. In this process, the components pass through a first processing zone formed by the blast cone 15' and a further processing zone formed by the blast cone 1T. It is understood that only one or more than two processing zones can be traversed. The devices and procedures according to the invention described below for reducing shadowing can operate within one or more processing zones or be arranged between successive processing zones.

[0042] For processing, components 10 and 12 are placed on a supporting structure 24, which in the illustrated embodiment is designed as a circulating belt conveyor, for example, a wire mesh belt. After being placed on the supporting structure 24, the components 10 and 12 are moved through the processing zones 15' and 17' in the transport direction indicated by an arrow and processed in this initial position by a line-of-sight process, in the illustrated embodiment by blasting with an abrasive. The blasting devices 15 and 17, arranged below the supporting structure 24, blast the components from below through the structure. These blasting devices can be positioned so that they blast obliquely from below between the upper and lower layers of the belt, thus preventing both layers from being blasted.Due to the blasting from below, those parts of components 10, 12 that are covered or shaded by the supporting structure 24 are not blasted. For this reason, in the case shown in Fig.

[0043] In the device shown in Fig. 1, an obstacle 26 is provided, which is located between the machining zones 15' and 17' in the transport path of the components 10, 12. This causes, for example, the component 12, after it has already been machined for a predetermined time, to change its position relative to the supporting structure 24, so that it is no longer in its initial position. During this change of position, the machining can be interrupted and then resumed, so that the areas previously covered by the supporting structure 24 can also be machined from the underside. As Fig. 1 illustrates, after passing through the obstacle 26, the component 12 has changed its original position by being moved or rotated by the obstacle 26. Fig. 2 shows a system similar to Fig. 1, with the same reference numerals used for identical components. The system shown in Fig. 2 differs from that of Fig. 1.1. The supporting structure 24 is composed of two substructures 28 and 30, i.e., two successive conveyors, such that a transfer of component 10 from the first substructure 28 to the second substructure 30 takes place between the processing zones 15' and 17'. During this transfer, a change in the position of the component relative to the supporting structure can be effected by various measures, which are explained in more detail below.

[0044] One way to effect a change in the position of the component is simply to transfer it from one supporting structure to another within or between two adjacent processing zones. This can be achieved, for example, by transferring or sliding the component 10 from a first belt 28 to a second belt 30 in a continuously operated wire belt shot blasting system. The offset between the belts in the conveying direction changes the contact points, thereby altering the shadowing and ensuring more uniform processing (see Fig. 2).

[0045] A similar effect can be achieved by making the supporting elements (e.g., wire belts) of the two supporting substructures 28, 30 different from each other, e.g., by having different grid patterns. A similar effect is achieved if the upper run of a continuous belt 24 is directed downwards (Fig. 3) and / or has an offset that leads to a displacement of the position of component 10 relative to the shading structures.

[0046] With two supporting substructures 28 and 30, the second belt 30 can also be arranged at an angular offset, so that in addition to the change of position in the transport direction, a rotation also leads to the required change of position (Fig. 4).

[0047] Another way to change the position is to lift the component and let it slide down. Load-bearing structures, especially for heavy components, are relatively rigid. This limits the possibilities of achieving the necessary change in position between the component and the moving load-bearing structure by varying the inclination of the load-bearing structure, or rather, it cannot be achieved within small spatial distances, but must be over a length of more than approximately 10 cm. By installing a wedge 32 below the load-bearing structure, its topography is altered, allowing the moving load-bearing structure 24, for example, to rise (Fig. 5). A steep drop after the rise is advantageous because the components 10 can then tilt over the edge-like highest area 34 and, if necessary, also slide slightly. This highest area 34 can be perpendicular to the direction of movement and straight (Fig. 6) or asymmetrical or inclined, e.g.,oblique to the direction of movement (Fig. 7) and thus not only cause the component to slip on the moving supporting structure 24 in the direction of movement, but also perpendicular to the direction of movement.

[0048] The tilting and slipping over the edge 34 can be facilitated by the transmission of vibrations or impact movements to the moving supporting structure 24 and / or the component 10, 12. The vibrations and the impact load are transmitted by a device 36, preferably behind the rise (Fig. 5).

[0049] The required change in position of the components relative to the supporting structure 24 can also be effected by elements arranged vertically or obliquely to the conveying direction of the supporting structure 24 for changing the height of the supporting structure (e.g. via wedges 32 with gently or sharply rising or falling flanks), which lead to slipping, tipping or displacing of the component by lengthening the path, (temporarily) changing the contact points and thus the adhesive / friction forces for component transport.

[0050] Another possibility is to change the position of component 10 by (partial) rotation. Depending on the component size, obstacles in the form of internal components, for example wedges 33 (Fig. 8) or rollers 38, e.g., with a vertical axis of rotation (Fig. 9), can be installed for this purpose. In contrast to the supports shown in Figs. 6 and 7, these internal components project from the side and above the supporting structure into the component's path of movement. As the components 10 move through the shot blasting system, the component 10 then, for example, encounters an obstacle laterally and is thereby slightly rotated, so that the required change in the component's position on the supporting structure 24, for example by one to two units of the supporting structure (belt spacing, hole spacing, wire diameter, etc.), is achieved by rotation.Provided the component geometry and weight allow it, this rotation can also be achieved through friction applied to a specific area of ​​the component, causing a deceleration in that area. This allows the component to be slightly twisted to achieve the required change in position.

[0051] A change in position through partial rotation can also be achieved by slightly raising the supporting structure 24 (e.g., the wire belt) in a partial area (e.g., at the left edge of the belt in the direction of movement) by means of a support 40 (Fig. 10). This changes the contact points and the weight distribution. If the supporting structure 24 then simultaneously slopes downwards in the adjacent partial area, this can lead to a (partial) rotation of the component 10 by shifting the contact points. This effect can also be achieved or enhanced if, in a subsequent belt section, the supporting structure 24 is raised in another partial area (e.g., at the right edge of the belt) by means of a further support 42, which again significantly changes the contact points (Fig. 11). Improvements regarding...The uniformity of the machining pattern arises from the fact that parts of the component 10 lift off from the supporting structure 24 and / or the component rotates through (partial) rotation.

[0052] Unlike rotation using internal components (lateral, top-braking, etc.), this method can also be used for heavy parts.

[0053] The required change in position between two machining zones, but also within a machining zone, can also be achieved by briefly decelerating / braking or stopping the component's movement on the supporting structure 24 (e.g., wire mesh belt). Simultaneously, the supporting structure 24 continues to move beneath the component 10, thus achieving the required change in the component's position relative to the supporting structure.

[0054] To slow down or stop the component, it can, for example, move against a stationary obstacle 12 (Fig. 1) or against a temporary obstacle 44 (Fig. 12). This can be, for example, a holding element that is moved from above and / or from the side towards the component, engages or touches it, moves against it, or is placed in its path, thus slowing down or stopping its movement. The holding element 12, 44 can be a pin or beam against which the component moves (Fig. 12). The contact time between the holding element and the component, and thus the duration of the deceleration, can be set via a system controller. The holding element can be moved at a fixed interval and thus potentially act on a component multiple times, but at least once.In combination with automated component recognition, the movement of the holding element can be switched from a fixed time interval to a component-specific time interval. For this purpose, the system can be equipped with suitable sensors (light barrier, capacitive / inductive sensor, camera system with component identification via image comparison or light / dark comparison, line scanner, etc.) in the component support area, before, in, or between processing zones.

[0055] In another embodiment, the obstacle does not consist of a rigid structure such as a pin or beam, but rather of a flexible structure that acts on the component continuously, intermittently, or sensor-controlled, similar to a brake pad. This flexible structure can have a structure like a brake pad (hard backing with a softer layer of rubber / silicone, etc.). A softer structure acting as a braking obstacle can also include rigid or adjustable brushes 46, 48 of, for example, different hardnesses (Fig. 13). If braking structures are used in different areas of the supporting structure (e.g., on the left and right sides of a wire belt 24), the braking effect can be varied in these areas. The braking elements 46, 48 can be arranged opposite each other (Fig. 13 and 14a), slightly offset from each other (Fig. 14b), or opposite and completely offset from each other (Fig. 14c).This allows components to be decelerated relative to the supporting structure 24 (wire belt) not only in the transport direction but also set into (partial) rotation. Partial rotation can also occur if the braking effect on the components varies across different areas of the belt structure. This can result from varying contact times, which can be influenced by the duration of contact. Possibilities for varying the contact arise from different component and deceleration element lengths, different hardness of the decelerating elements (e.g., hard and soft brushes), different contact forces, or variations in the contact times of the decelerating elements in different areas of the supporting structure.

[0056] The component 10, which moves on the supporting structure 24, can also change its position relative to the supporting structure 24 (wire mesh belt) by acceleration. This creates a relative movement between the component and the moving supporting structure. This can be achieved, for example, by requiring the component to travel a longer distance without moving faster through the overall structure. This can be accomplished, for example, by structures acting on the components from above, from the side, or from below. These could be, for example, sliding elements, slowly rotating coarsely segmented gears, or brush-like structures.

[0057] If the moving support structure 24 has large holes, openings, etc., or is designed as a wire belt (large open area, few load-bearing structural elements), the change in position due to acceleration can also be generated by rotating elements 50, such as brush wheels, brush belts, etc., engaging from below through the support structure (Fig. 15). These lift the components 10 at specific points or along a line. The components 10 can remain at a certain height, or, in the case of several elements 50 arranged in succession, move up or down a ramp (Fig. 16) before being completely lowered back onto the moving support structure 24. This increases the transport path of the components 10 relative to the moving support structure 24; deceleration or sliding movements can also be generated, thus leading to a change in position.When arranging several roller elements transversely to the transport direction (e.g., with wire or plastic bristles), various ramp guides arranged side-by-side or one behind the other can be realized by varying the height of the bristles (Fig. 17). The component is moved, for example, on a flat supporting structure from left to right through the system and lifted in the direction of movement by successively arranged double roller brushes 50, first at the right edge of the supporting structure, then in the middle, and finally at the left edge. The path of the components is illustrated by the trajectories 53 shown in Fig. 17. The roller elements 50, arranged transversely to the transport direction and engaging the wire belt from below, can be driven externally or by the movement of the wire belt. The supporting structure 24 in a continuously operated system for processing horizontal components 10 from above and below (e.g.,The wire belt in a continuous shot blasting system can also be set in motion perpendicular to the conveying direction to move the component, particularly between two successive treatment zones, in such a way that the component's position on the supporting structure changes without interrupting its transport in the continuous processing / treatment process. These perpendicular movements can be applied by oscillation, impact, or in various local or spatial combinations.

[0058] Impact movements can be applied, for example, by means of hammers, either at specific points, along lines, or over a larger area. In another embodiment, half a movement cycle of an impact movement can be applied. A movement cycle consists of the lifting / impact action of a device for impulse transmission (e.g., a hammer) and the lowering or retraction of this device after contact or impact with the supporting structure or component. The effect of the impact can be influenced by varying the duration of half a movement cycle (e.g., lifting or lowering a hammer). Thus, a sudden impact can cause the component to jump, while a very slow impact does not transmit any impulse from the device to the component, but instead, for example, produces a vibration.temporarily causing an upward rise or shift of the supporting structure, which consequently leads to a change in the position between the supporting structure and the component.

[0059] A sudden, impact-like movement can also be applied to the supporting structure or component by a rotating device (eccentric). The rotation can be in the same or opposite direction to the movement of the supporting structure and the component. To mitigate the impact on the supporting structure or component, the eccentric can, for example, be equipped with a brush that makes contact with the component.

[0060] The combination of vibration and impact can cause components on the supporting structure to become more easily movable, allowing them to be repositioned on the supporting structure with less force by an impact. This impact movement can be transmitted to the supporting structure or act directly against the component. Vibrations can be transmitted to the moving supporting structure using vibration generators such as eccentric motors.

Claims

Claims 1. Method for machining a component (10, 12) in which the component is placed on a supporting structure (24) in an initial position, moved in this initial position through at least one machining zone (14), and machined in this initial position through the supporting structure in a line-of-sight process, characterized in that after part of the total machining time the position of the component (10, 12) relative to the supporting structure (24) is changed.

2. Method according to claim 1, characterized in that the processing is subsequently continued, in particular in a further processing zone.

3. Method according to claim 1 or 2, characterized in that the change in position is caused by at least one obstacle (26, 32, 33, 38, 44, 50).

4. Method according to one of the preceding claims, characterized in that the obstacle (26, 32, 33, 38, 44, 50) is introduced into the transport path of the component (10, 12).

5. Method according to claim 4, characterized in that The setup is carried out depending on a previously performed, automated component recognition.

6. Method according to one of the preceding claims, characterized in that the change in position is effected by a change in the topography of the supporting structure (24).

7. Method according to one of the preceding claims, characterized in that the change in position is caused or supported by oscillation, vibration and / or impact force application to the supporting structure (24).

8. Method according to one of the preceding claims, characterized in that a supporting structure (24) is used which comprises a first and a second supporting substructure (28, 30), and that the change in position relative to the supporting structure (24) is effected by transferring the component (10, 12) from the first supporting substructure (28) to the second supporting substructure (30).

9. Method according to claim 8, characterized in that the transport directions of the first and the second supporting substructure (28, 30) are oriented at an angle (a) to each other.

10. Method according to one of the preceding claims 8 or 9, characterized in that The bearing surfaces of the first and second supporting substructures (28, 30) are designed differently. 1 1 . Method according to one of the preceding claims, characterized in that the change in position is effected by rotating elements (38, 50), in particular brushes.

12. Method according to one of the preceding claims, characterized in that the component (10, 12) is moved obliquely to its transport direction when changing its position on the supporting structure (24).

13. Method according to one of the preceding claims, characterized in that the position of the component (10, 12) is changed by applying a jet, in particular from a jet turbine or from a compressed air nozzle.

14. Method according to one of the preceding claims, characterized in that the change in position comprises a displacement of the component (10, 12) by at least two units of the solid components of the supporting structure (24).

15. Device for carrying out a method according to at least one of the preceding claims with a supporting structure (24) movable in the transport direction, which is guided through at least one processing zone (14) in which a processing means (16) for a line-of-sight process is located. is located, and with a device for changing the position of the component (10, 12) relative to the supporting structure (24) during machining.

16. Device according to claim 15, characterized in that the device is a passive obstacle (26, 32).

17. Device according to claim 15, characterized in that the device is an obstacle (44) that can be actively introduced into the transport path of the supporting structure (24).

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