Mobile imaging device, imaging system, imaging arrangement, and imaging method for imaging a cut edge

Abstract

The invention relates to a mobile imaging device (10) for the location-independent generation of at least one image (12) of a cut edge (14) of a workpiece (16), comprising: a main body (18) comprising a cut-edge stop (20) which is located or formed on the main body and intended for placing the main body (18) against the workpiece (16) having the cut edge (14) to be imaged; an imaging unit (24) which is located in or on the main body (18) and intended for imaging the cut edge (14); wherein the cut-edge stop (20) forms a predetermined edge distance (22) to the imaging unit (24) along an optical imaging axis (28) of the imaging unit (24), wherein the predetermined edge distance (22) causes a constant imaging distance of the imaging unit (24) to the cut edge (14) when the imaging device (24) is placed on the workpiece (16). The invention also relates to an imaging system (42), to an imaging arrangement (40), and to an imaging method (50).

Description

[0001] Mobile imaging device, imaging system, imaging arrangement and imaging method for imaging a cutting edge

[0002] The cutting quality during the production of workpieces using laser cutting is typically recorded and evaluated using image-based computer processes, for example, using machine learning techniques. Based on the determined cutting quality, process and machine parameters can be adjusted or corrected to maintain and / or optimize the cutting quality during production.

[0003] However, the quality of the results of such computer-aided procedures depends significantly on the quality of the images being evaluated. Changing conditions, particularly changes in the acquisition position and / or angle during image acquisition, can significantly impair the quality of the images.

[0004] WO 2022 / 157310 A1 discloses a device for analyzing a cut edge of a workpiece. The workpiece is held in a workpiece holder at predetermined illumination angles to enable high-quality imaging of the cut edge.

[0005] However, the known device can only inadequately meet the requirements for the quality of the image recordings.

[0006] For example, with conventional fixtures, the workpiece typically has to be placed in a mapping fixture, which requires additional work steps to determine the cut quality. This effort typically increases with the size and weight of the workpieces. Furthermore, mapping the cut edge is often significantly hampered with such bulky workpieces or is not possible at all, for example, due to the available mapping space. In order to monitor the cut quality, test workpieces often have to be manufactured, which, however, reduces production capacity and leads to rejects.

[0007] It is therefore an object of the invention to provide a device and a method with which a simple image of the cutting edge can be generated with reproducibly high image quality.

[0008] This object is achieved according to the invention by a mobile imaging device having the features of claim 1. The object is further achieved by an imaging system having the features of claim 10. The object is further achieved by an imaging arrangement having the features of claim 12. The object is further achieved by an imaging method having the features of claim 14. The subclaims represent preferred developments of the invention.

[0009] According to the invention, a mobile imaging device is provided. The mobile imaging device is designed for mobile use. In other words, the mobile imaging device can be used anywhere. This allows the imaging device to be used, for example, within a machine tool and / or in the vicinity of a machine tool. In this way, imaging a cutting edge can be performed particularly easily at the location where the cutting edge is formed.

[0010] The mobile imaging device is designed to generate at least one image of a cutting edge of a workpiece. Typically, the mobile imaging device is designed to image a plurality of cutting edges on different workpieces.

[0011] The mobile imaging device has a base body. The base body is typically made of plastic. This allows the imaging device to be robust and lightweight, thus simplifying handling.

[0012] The base body has a cutting edge stop. The cutting edge stop can be arranged or formed on the base body. Typically, the cutting edge stop is manufactured in one piece with the base body or formed on the base body. Alternatively or additionally, the cutting edge stop can be arranged on the base body by means of known fastening means. Furthermore, it is conceivable for the cutting edge stop to be formed in several parts, with a first part of the cutting edge stop being formed on the base body and a second part being fastened to the base body, in particular to the first part of the cutting edge stop.

[0013] The cutting edge stop is designed to position the base body against the workpiece having the cutting edge to be imaged. In other words, the cutting edge stop forms a contact section between the workpiece and the imaging device when the imaging device is arranged on the workpiece.

[0014] The imaging device has at least one imaging unit. Preferably, the imaging device has exactly one imaging unit. The imaging unit is to be understood as a sub-device designed to generate a graphic image of the cutting edge. Typically, the imaging unit has at least one camera or is designed as a camera. The imaging unit can be designed, for example, as a smartphone.

[0015] Preferably, the camera has a resolution of at least 0.5 megapixels, particularly preferably of at least 1.0 megapixels. Further preferably, the camera has a resolution of at most 5.0 megapixels, particularly preferably of at most 2.0 megapixels. The inventors have recognized that cameras having the resolutions described above are superior in terms of resolution accuracy, imaging speed, memory requirements, and

[0016] Evaluation effort is particularly well suited for mapping cutting edges.

[0017] The imaging unit can be arranged or positioned in or within the base body. In other words, the base body can enclose the imaging unit, wherein the base body has at least one imaging opening for imaging the cutting edge. Alternatively, the imaging unit can be arranged on the base body. In other words, the imaging unit can be attached to an outer side of the base body.

[0018] The imaging unit can be permanently attached to the base body, for example, by a non-destructive, indetachable arrangement, or detachably, by a clamping or screwing arrangement. For example, the latter allows for the temporary attachment of a smartphone as an imaging unit to the base body. This allows the imaging device to be provided particularly cost-effectively.

[0019] According to the invention, the cutting edge stop forms a predetermined edge distance from the imaging unit along an optical imaging axis of the imaging unit. The edge distance is preferably coordinated with a focal position of the imaging unit. This allows for particularly simple imaging of the cutting edge in the imaging plane of the imaging unit.

[0020] The predetermined edge distance ensures a constant imaging distance between the imaging device and the cutting edge when the imaging device is applied to the workpiece. In other words, the distance between the imaging unit and a cutting edge of a workpiece to be imaged can be kept the same for different workpieces and different imaging processes. This makes it possible to achieve a consistently high quality of the images while simultaneously using a simple imaging process. In summary, the invention proposes a mobile imaging device which, by means of a cutting edge stop, enables the imaging device to be repeatedly applied to different workpieces with cutting edges to be imaged. The distance between the imaging device and the cutting edge can be kept constant in a particularly simple manner, so that images of consistently high quality can be generated.This further simplifies the evaluation of the cutting quality of a machine tool and the subsequent modification or optimization of the machine parameters and / or manufacturing process parameters for cutting workpieces.

[0021] In a preferred embodiment, the mobile imaging device has a handle arranged or formed on the base body. In other words, the base body has the handle. The handle is designed for one-handed handling of the mobile imaging device. The handle is preferably ergonomically shaped to further improve handling. Particularly preferably, the handle is designed in a "pistol-like" manner, which enables particularly secure handling of the handle.

[0022] In a preferred embodiment, the mobile imaging device further comprises a trigger arranged on the handle. The trigger is designed to generate the image of the cutting edge when the imaging device is applied to the workpiece. In other words, the trigger triggers the imaging unit, thereby generating the image of the cutting edge. This can further simplify handling of the imaging device. The trigger can preferably be designed to be triggered by an index finger of a human hand.

[0023] An embodiment of the mobile imaging device is preferred in which the cutting edge stop is adjustable along the optical imaging axis. The cutting edge stop is preferably movable and fixable along the optical imaging axis. Particularly preferably, the cutting edge stop is formed in at least two parts, with one part of the cutting edge stop being deflectable relative to a second part of the cutting edge stop. After the movable part has been deflected, it can preferably be fixed relative to the second part of the cutting edge stop. This allows the imaging distance to be adjusted to a changed focus position or to changed imaging dimensions of the imaging unit, thereby improving the imaging flexibility of the imaging device.

[0024] In a preferred embodiment of the mobile imaging device, it has a cover arranged or formed on the base body. The cover is designed to protect the imaging unit from interference caused by external light. This can improve the imaging accuracy, in particular the sharpness of the image.

[0025] Furthermore, an embodiment of the mobile imaging device is preferred in which the base body has an alignment stop arranged or formed thereon. When the imaging device is arranged on the workpiece, the alignment stop ensures a perpendicular alignment of the optical imaging axis to the cutting edge. In other words, the alignment stop typically has a predetermined stop angle relative to the cutting edge stop. The stop angle is preferably adapted to a contour of the workpiece.

[0026] In a preferred embodiment, the mobile imaging device has a light source arranged on or in the base body. When the imaging device is applied to the workpiece, the light source is directed onto the cutting edge. In other words, the light source is designed to illuminate the cutting edge while the image is being created. The light source can have one or more illuminants. The light source is preferably designed as a so-called dome light, which can achieve particularly uniform illumination of the cutting edge. This can further improve the quality of the image. An embodiment of the mobile imaging device in which the imaging unit is formed within the base body is also preferred. In other words, the imaging unit is arranged and formed integrally within the base body.This can provide particularly high protection of the imaging unit against damage.

[0027] In a preferred embodiment, the mobile imaging device, in particular the imaging unit, has a communication module for exchanging data. The data can be exchanged, for example, via a data cable. Preferably, the communication module is designed for wireless data exchange, in particular via Bluetooth. This can further improve the handling of the imaging device.

[0028] The underlying problem is further solved by an imaging system. The imaging system is suitable and designed to generate images of cutting edges on workpieces. Typically, the imaging system is designed to store the images. Preferably, the imaging system is designed to further process or evaluate the images.

[0029] The imaging system comprises at least one mobile imaging device as described above and below. Preferably, the imaging system comprises at least two or more imaging devices as described above and below. This allows the imaging system to be designed particularly efficiently and enables the simultaneous imaging of multiple cutting edges.

[0030] The imaging system comprises an evaluation unit for storing the images generated by the imaging device. Typically, the evaluation unit is configured to communicate with a communication module of the mobile imaging device. Communication between the evaluation unit and the mobile imaging device allows for an exchange of data, particularly generated images.

[0031] Data can be exchanged via a cable or wired connection. Preferably, data is exchanged wirelessly, particularly via Bluetooth.

[0032] In a preferred embodiment, the imaging system comprises a machine tool. The machine tool is designed to form, in particular cut, a cutting edge on a workpiece. The machine tool is preferably designed as a laser processing machine, wherein the processing of the workpiece or the formation of the cutting edge is carried out using a processing laser. The evaluation unit can be integrated into the machine tool, in particular in a control system of the machine tool. This allows for particularly rapid evaluation of the image in conjunction with a rapid evaluation.

[0033] The underlying problem is further solved by an imaging arrangement. The imaging arrangement is suitable and designed for generating images of cutting edges on workpieces.

[0034] The imaging arrangement comprises an imaging system as described above and below, having at least one imaging device as described above and below. Preferably, the imaging arrangement comprises two or more imaging devices as described above and below.

[0035] The imaging arrangement also includes a workpiece with a cutting edge to be imaged. The mobile imaging device is designed to be placed against the workpiece to image the cutting edge. In a particular embodiment, the mobile imaging device is placed against the workpiece.

[0036] In a particular embodiment of the imaging arrangement, the cutting edge stop and the alignment stop are configured to complement a contour section of the workpiece. In other words, the cutting edge stop and the alignment stop are positioned on different sides of the workpiece. Preferably, by positioning the cutting edge stop and the alignment stop against the workpiece, the optical imaging axis of the imaging unit is configured perpendicular to the cutting edge.

[0037] The underlying problem is further solved by an imaging method. The imaging method is designed to generate images of cutting edges on workpieces using a previously described imaging arrangement.

[0038] The imaging method comprises at least the following method steps: In a first method step of the imaging method, the mobile imaging device is positioned on the workpiece. The workpiece typically has at least one cutting edge to be imaged. The mobile imaging device is positioned by placing the cutting edge stop of the mobile imaging device on the workpiece. This allows a predetermined distance to be maintained between the imaging unit and the cutting edge.

[0039] In a further method step of the imaging method, the image of the cutting edge is created by triggering the imaging unit. Triggering is preferably effected by means of a trigger on the imaging device. Particularly preferably, the trigger is arranged on a handle of the imaging device. In a preferred embodiment of the imaging method, the mobile imaging device is additionally arranged on the workpiece by placing the alignment stop on the workpiece. In other words, the cutting edge stop and the alignment stop are applied to the workpiece. This ensures not only the predetermined imaging distance but also a predetermined imaging angle. This enables further improvement and reproducibility of the imaging of cutting edges.

[0040] Further preferred is an embodiment in which the imaging method comprises the additional method step after which a transmission of the image to the evaluation unit of the imaging system is provided.

[0041] Further advantages of the invention will become apparent from the description and the drawings. Likewise, the above-mentioned and further-described features can be used individually or in combination in any desired manner. The embodiments shown and described are not intended to be exhaustive, but rather are exemplary in nature for describing the invention.

[0042] Detailed description of the invention and drawing

[0043] Fig. 1 shows a mobile imaging device in a perspective view.

[0044] Fig. 2 shows an imaging arrangement with an imaging system having the imaging device from Fig. 1 and a workpiece in a schematic representation.

[0045] Fig. 3 schematically shows an imaging method for generating images of cutting edges on workpieces. Fig. 1 shows an embodiment of a mobile imaging device 10 according to the invention.

[0046] The imaging device 10 is designed for the location-independent generation of at least one image 12 (see Fig. 2) of a cutting edge 14 (see Fig. 2) of a workpiece 16 (see Fig. 2).

[0047] The imaging device 10 comprises a base body 18 and a cutting edge stop 20 arranged on the base body 18 as shown.

[0048] The cutting edge stop 20 is designed to be applied to the workpiece 16 having the cutting edge 14 to be formed. By applying the cutting edge stop 20 to the workpiece 16, positioning of the base body 18 at a predetermined edge distance 22 (see Fig. 2) can be ensured.

[0049] The imaging device 10 also includes an imaging unit 24. As shown, the imaging unit 24 is arranged within the base body 16 and is substantially enclosed by it (represented by a dashed reference line). The imaging unit 24 is preferably designed as a camera. The imaging unit 24 is designed to image the cutting edge 14. The imaging unit 24 is preferably arranged or attached immovably to the base body 18.

[0050] The base body 18 and / or the cutting edge stop 20 preferably have an imaging recess 26 through which the imaging unit 24 generates the image 12 of the cutting edge 14. In other words, an optical imaging axis 28 of the imaging unit 24 is directed through the imaging recess 26. Thus, when the imaging device 10 is arranged on the workpiece 16, the cutting edge stop 20 forms the edge distance 22 predetermined along the optical imaging axis 28 of the imaging unit 24 from the imaging unit 24. This results in a constant imaging distance of the imaging device 24 from the cutting edge 14.

[0051] The cutting edge stop 20 can be detachably attached to the base body 18 to facilitate replacement of the cutting edge stop 20. Replacement of the cutting edge stop 20 can be provided if a figure 12 is to be created under changed conditions.

[0052] Alternatively or additionally, the cutting edge stop 20 can be designed to be adjustable along the optical imaging axis 28. This allows the imaging distance to be particularly easily adjusted to a changed focus position or changed imaging dimensions.

[0053] As shown, the mobile imaging device 10 may include a handle 30 arranged or formed on the base body 18. The handle 30 is preferably configured for one-handed handling of the mobile imaging device 10 by an operator (not shown). Typically, the handle 30 is pistol-shaped, as shown.

[0054] As shown, the mobile imaging device 10 may further include a trigger 32 arranged on the handle 30 for generating the image 12 of the cutting edge 14 when the imaging device 10 is applied to the workpiece 16. The trigger 32 is typically configured to trigger the imaging unit 24. Preferably, the trigger 32 is configured to be triggered by an index finger of a human hand of an operator.

[0055] The mobile imaging device 10 can further include a cover 34 arranged or formed on the base body 18. As shown, the cover 34 is integrally formed on the cutting edge stop 20. The cover 34 reliably protects the imaging unit 24 from interference caused by external light, thereby further improving the imaging quality.

[0056] Furthermore, the mobile imaging device 10, as shown, includes an alignment stop 36. As shown, the alignment stop 36 is integrally formed on the cutting edge stop 20. The alignment stop 36 preferably effects a perpendicular alignment of the optical imaging axis 28 to the cutting edge 14 when the imaging device 10 is arranged on the workpiece 16. The imaging device 10 can thus be positioned at a constant imaging angle in addition to the constant edge distance 22. This allows the imaging device 10 to be positioned even more precisely, thereby further improving the imaging quality.

[0057] Furthermore, the mobile imaging device 10 or the imaging unit 24 can have a communication module 38. The communication module 38 is designed for the exchange of data, in particular wirelessly. Typically, the communication module 38 is designed to transmit images 12 of the cutting edge 14 generated by the imaging unit 24. The communication module 38 is typically arranged within the base body 18, which is represented by a dashed reference line.

[0058] Fig. 2 shows an imaging arrangement 40 with an imaging system 42 and the workpiece 16.

[0059] The imaging system 42 is configured to generate the image 12 of the cutting edge 14 of the workpiece 16. Typically, the imaging system 42 is configured to generate a plurality of images 12 of different cutting edges 14. As shown, the imaging system 42 comprises the mobile imaging device 10 shown in Fig. 1. Preferably, the imaging system 42 comprises two or more mobile imaging devices 10. This can facilitate the parallel generation of images 12.

[0060] The imaging system 42 also has an evaluation unit 44 for storing the images 12 generated by the imaging device 10.

[0061] Preferably, the evaluation unit 44 is configured to evaluate the images 12. This allows subsequent processes to be carried out particularly quickly and easily. Particularly preferably, the evaluation unit 44 is arranged in a machine tool (not shown) and / or integrated into a machine control system of the machine tool. This allows an evaluation of the images 12 to be used directly to optimize production parameters.

[0062] The evaluation unit 44 is typically connected to the imaging unit 10 for exchanging data, here the image 12. The data connection can be established via a data cable. Preferably, the data connection is wireless, particularly between the evaluation unit 44 and the communication module 38, which allows the mobile imaging unit 10 to be used particularly flexibly.

[0063] As shown, the imaging arrangement 40 is suitable and configured to generate one or more images 12 of the cutting edge 14.

[0064] The mobile imaging unit 10 is designed to be applied to the workpiece 16. According to the illustrated imaging arrangement 40, the imaging device 10 is in a state in which it is applied to the workpiece 16. The cutting edge stop 20 rests against the cutting edge 14 to be imaged and distances the base body 18 of the imaging device 10 by the edge distance 22. This allows the imaging unit 24 to be positioned at a predetermined distance, in particular a focal position, from the cutting edge 14, thereby increasing the imaging quality.

[0065] Further, as shown, the alignment stop 36 is in a position resting against a top side 48 of the workpiece 16. This allows the alignment of the base body 18 to the cutting edge 14, or an imaging angle of the imaging unit 24, to be repeatedly adjusted. In other words, an image 12 can be generated at the same edge distance 22 and the same imaging angle to the cutting edge 14. Preferably, the imaging angle, or the optical axis 28 (see Fig. 1), of the imaging unit 24 is perpendicular to the cutting edge 14.

[0066] As shown, the cutting edge stop 20 and the alignment stop 36 are designed to complement a contour section of the workpiece 16. This allows repeatable positioning of the imaging device 10 to be carried out particularly easily and quickly.

[0067] Fig. 3 shows an imaging method 50 for generating images 12 (see Fig. 2) of cutting edges 14 (see Fig. 2) on workpieces 16 (see Fig. 2) with an imaging arrangement 40 (see Fig. 2).

[0068] The imaging arrangement 40 is preferably the imaging arrangement 40 of Fig. 2.

[0069] The imaging method 50 comprises at least the following method steps:

[0070] In a method step 52 of the imaging method, the mobile imaging device 10 is arranged on the workpiece 16. The workpiece 16 typically has at least one cutting edge 14 to be imaged. The imaging device 10 is typically arranged by placing the cutting edge stop 20 (see Figures 1 and 2) of the mobile imaging device 10 on the workpiece 16, or the cutting edge 14. This positions the imaging device 10, or an imaging unit 24, at a predetermined distance from the cutting edge 14.

[0071] A further method step 54 of the imaging method 50 provides for creating the image 12 of the cutting edge 14 by triggering the imaging unit 24. The imaging unit 24 is preferably triggered by actuating a trigger 32 (see Fig. 1). The trigger 32 is typically arranged or formed on, in particular on a handle 30, the imaging device 10.

[0072] An additional method step 56 of the imaging method 50 may provide for the mobile imaging device 10 to be arranged on the workpiece 16 by additionally applying the alignment stop 36 (see Figures 1 and 2) to the workpiece 16. This allows the imaging unit 24 to be repeatedly positioned both at the predetermined imaging distance and at a predetermined imaging angle.

[0073] A further method step 58 of the imaging method 50 may provide for transmitting the image 12 to the evaluation unit 44 (see Fig. 2) of the imaging system 42. This facilitates rapid further processing of the generated image 12.

[0074] List of reference symbols mobile imaging device illustration cutting edge

[0075] workpiece

[0076] Basic body

[0077] Cutting edge stop edge distance

[0078] imaging unit

[0079] Image recess optical image axis handle

[0080] trigger

[0081] cover

[0082] Alignment stop Communication module Imaging arrangement Imaging system, evaluation unit Top

[0083] imaging methods

[0084] Process step

[0085] Process step

[0086] Process step

[0087] Process step

Claims

Patent claims 1 . Mobile imaging device (10) for the location-independent generation of at least one image (12) of a cutting edge (14) of a workpiece (16), comprising - a base body (18) with a cutting edge stop (20) arranged or formed thereon, for placing the base body (18) against the workpiece (16) having the cutting edge (14) to be imaged; - an imaging unit (24) arranged in or on the base body (18) for imaging the cutting edge (14); wherein the cutting edge stop (20) forms a predetermined edge distance (22) from the imaging unit (24) along an optical imaging axis (28) of the imaging unit (24), wherein the predetermined edge distance (22) effects a constant imaging distance of the imaging unit (24) from the cutting edge (14) when the imaging device (24) is applied to the workpiece (16).

2. Mobile imaging device (10) according to claim 1, further comprising a handle (30) arranged or formed on the base body (18), wherein the handle (30) is designed for one-handed handling of the mobile imaging device (10).

3. Mobile imaging device (10) according to claim 2, further comprising a trigger (32) arranged on the handle (30) for generating the image (12) of the cutting edge (14) in a state of the imaging device (10) applied to the workpiece (16).

4. Mobile imaging device (10) according to one of the preceding claims, wherein the cutting edge stop (20) is adjustable along the optical imaging axis (28).

5. Mobile imaging device (10) according to one of the preceding claims, further comprising a cover (34) arranged or formed on the base body (18), wherein the cover (34) protects the imaging unit (24) from interference caused by external light.

6. Mobile imaging device (10) according to one of the preceding claims, wherein the base body (18) has an alignment stop (36) arranged or formed thereon, wherein the alignment stop (36) effects a perpendicular alignment of the optical imaging axis (28) to the cutting edge (14) when the imaging device (10) is arranged on the workpiece (16).

7. Mobile imaging device (10) according to one of the preceding claims, further comprising a light source arranged on or in the base body (18) for illuminating the cutting edge (14) during the generation of the image (12).

8. Mobile imaging device (10) according to one of the preceding claims, wherein the imaging unit (24) is formed within the base body (18).

9. Mobile imaging device (10) according to one of the preceding claims, wherein the imaging unit (24) has a communication module (38) for exchanging data, in particular wirelessly.

10. Imaging system (42) for generating images (12) of cutting edges (14) on workpieces (16), comprising a mobile imaging device (10) according to one of the preceding claims, and an evaluation unit (44) for storing the images (12) generated by the imaging device (10), wherein the mobile imaging device (10) has a communication module (38), wherein the evaluation unit (44) for Exchanging data with the imaging device (10), in particular the imaging unit (24).

11. Imaging system (42) according to claim 10, further comprising a machine tool for forming, in particular cutting, a cutting edge (14) on a workpiece (16), wherein the evaluation unit (44) is arranged integrated in the machine tool.

12. Imaging arrangement (40) for generating images (12) of cutting edges (14) on workpieces (16), comprising an imaging system (42) according to claim 10 or 11 and a workpiece (16) with a cutting edge (14) to be imaged, wherein the mobile imaging device (10) can be placed against the workpiece (16) for imaging the cutting edge (14).

13. Imaging arrangement (40) according to claim 12 in conjunction with a mobile imaging device (10) according to claim 6, wherein the cutting edge stop (20) and the alignment stop (34) are formed complementary to a contour portion of the workpiece (16).

14. Imaging method (50) for generating images (12) of cutting edges (14) on workpieces (16) with an imaging arrangement (40) according to claim 12 or 13, comprising the method steps: - arranging (52) the mobile imaging device (10) on a workpiece (16) with the cutting edge (14) to be imaged by placing the cutting edge stop (20) of the mobile imaging device (10) on the workpiece (16); - Creating (54) the image (12) of the cutting edge (14) by triggering the imaging unit (24).

15. Imaging method (50) according to claim 14 in conjunction with an imaging device (10) according to claim 6, wherein arranging (52) the mobile imaging device (10) on the workpiece additionally by applying the alignment stop (36) to the workpiece (16).

16. The imaging method (50) according to claim 14 or 15, further comprising the Process step: - transmitting (56) the image (12) to the evaluation unit (44) of the imaging system (42).

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