Coaxial detection device

Abstract

The utility model discloses a coaxial detection device which comprises a detection seat and a camera, the detection seat is provided with a detection port used for positioning a laser cutting head and a nozzle, and a lens of the camera is aligned with the detection port so as to photograph the laser cutting head and the nozzle. After the laser cutting head and the nozzle are positioned, the camera can take a picture of the laser cutting head and the nozzle through the detection port, the picture is transmitted to the control system in a wired or wireless mode and the like, and the control system processes the picture, confirms whether the coaxiality is qualified or not and ensures that the circle center of the nozzle is consistent with that of the laser cutting head. The problem that the cutting quality is reduced due to the fact that the nozzle and the laser cutting head are not coaxial is avoided, and whether the replaced nozzle is damaged or not and whether the size of the nozzle meets the requirement or not can be detected through the control system.

Description

TECHNICAL FIELD

[0001] The utility model relates to laser cutting technical field, especially a coaxial detection device. BACKGROUND

[0002] Laser cutting technology has been widely used in manufacturing industry for its high precision, high efficiency and high flexibility. During the laser cutting process, a nozzle needs to be installed on the laser cutting head to control the diffusion area and size of the cutting gas so as to cut the workpiece into the required shape and size.

[0003] According to the actual needs of laser cutting, the appropriate nozzle needs to be replaced on the laser cutting head. At present, after the nozzle replacement is completed, whether the nozzle and the laser cutting head are coaxial is not detected, so the problem of cutting quality decline caused by the misalignment of the nozzle and the laser cutting head may occur. SUMMARY

[0004] In view of the above shortcomings of the prior art, the present application provides a coaxial detection device which can detect whether the nozzle and the laser cutting head are coaxial.

[0005] The embodiment adopts the following technical solutions:

[0006] A coaxial detection device comprises a detection seat having a detection opening for positioning the laser cutting head and the nozzle, and

[0007] A camera whose lens is aligned with the detection opening to take a photo of the laser cutting head and the nozzle.

[0008] Further, the coaxial detection device further comprises a base, the camera is installed on the base, and the detection seat is connected to the base.

[0009] Further, the coaxial detection device further comprises a protective lens which is arranged between the detection opening and the camera.

[0010] Further, the coaxial detection device further comprises a lens mounting assembly, the protective lens is arranged in the lens mounting assembly, and the lens mounting assembly is movably connected to the detection seat so that the protective lens can be moved in and out of the camera and the detection opening.

[0011] Further, in the coaxial detection device, the lens mounting assembly comprises a drawer box and a lens cover plate, the drawer box is movably connected to the detection seat, the lens cover plate is detachably connected to the drawer box, and the protective lens is clamped between the drawer box and the lens cover plate.

[0012] Further, in the coaxial detection device, the lens mounting assembly further comprises a lens gasket, a mounting groove is formed on the drawer box, and the lens gasket is arranged in the mounting groove and used for wrapping the protective lens.

[0013] Further, in the coaxial detection device, a buffer gasket is further arranged in the detection port.

[0014] Further, in the coaxial detection device, the buffer gasket is provided with a positioning port, and the shape of the positioning port is matched with the shape of the laser cutting head.

[0015] Further, in the coaxial detection device, a ring-shaped light source is further arranged between the detection port and the camera.

[0016] Further, in the coaxial detection device, a nozzle fixing plate is further arranged, the nozzle fixing plate is connected to the detection seat, a plurality of replacement grooves are formed on the nozzle fixing plate, and the replacement grooves are used for accommodating nozzles.

[0017] Compared with the prior art, the coaxial detection device provided by the application can position the laser cutting head and the nozzle through the detection port, the lens of the camera is aligned with the detection port, the camera can take a photo of the laser cutting head and the nozzle through the detection port, the photo is transmitted to the control system through a wired or wireless mode, the control system processes the photo, confirms whether the coaxiality is qualified, ensures that the center of the nozzle is consistent with the center of the laser cutting head, avoids the problem that the cutting quality is reduced due to the misalignment of the nozzle and the laser cutting head, and can also detect whether the replaced nozzle is damaged, whether the size of the nozzle meets the requirements, and the like through the control system. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The coaxial detection device provided by the application is a whole structure schematic view of a specific embodiment.

[0019] Figure 2 The coaxial detection device provided by the application is a whole structure schematic view of a specific embodiment. Figure 1 The coaxial detection device provided by the application is a whole structure schematic view of a specific embodiment.

[0020] Figure 3 The coaxial detection device provided by the application is a whole structure schematic view of a specific embodiment. Figure 1 The coaxial detection device provided by the application is a whole structure schematic view of a specific embodiment.

[0021] In the coaxial detection device, 10 is a detection seat, 11 is a detection port, 20 is a camera, 30 is a base, 31 is a base cover plate, 40 is a buffer gasket, 50 is a nozzle fixing plate, 60 is a protective lens, 70 is a lens mounting assembly, 71 is a drawer box, 711 is a mounting groove, 72 is a lens cover plate, 73 is a lens gasket, 80 is a light source, and 90 is a light source mounting seat. DETAILED DESCRIPTION

[0022] For the purpose of making the object, technical solutions and effects of the present application more clear, explicit and definite, the present application is further described in detail below with reference to the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application and do not limit the present application. The elements, structures and features in one embodiment can be beneficially combined into other embodiments without further description.

[0023] It should be noted that when a structure is referred to as "fixed to" or "disposed on" another structure, it can be directly on the other structure or indirectly on the other structure. In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.

[0024] The terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the purpose of facilitating the description of the present application and simplifying the description, and does not indicate or imply that the device or structure indicated must have a particular orientation, be constructed and operated in a particular orientation.

[0025] Please refer to Figure 1 and Figure 2 The coaxial detection device provided by the present application includes a detection seat 10 and a camera 20. The detection seat 10 is provided with a detection opening 11 for positioning the laser cutting head and the nozzle to determine the photographing position of the camera 20. For example, the laser cutting head and the nozzle can be directly inserted into the detection opening 11; or a positioning structure can be provided on the detection opening 11 to position the laser cutting head and the nozzle above the detection opening 11.

[0026] The lens of the camera 20 is aligned with the detection opening 11, so that the camera 20 can take a photo of the laser cutting head and the nozzle through the detection opening 11, and then transmit the photo to the control system through wired or wireless means. The control system processes the photo to confirm whether the coaxiality is qualified, ensures that the nozzle and the laser cutting head have the same center, and avoids the problem of reduced cutting quality caused by the misalignment of the nozzle and the laser cutting head.

[0027] In addition, after the camera obtains the photo of the laser cutting head and the nozzle, the control system can also detect whether the replaced nozzle is damaged, whether the size of the nozzle meets the requirements, etc.

[0028] The detection port 11 can be formed on the detection base 10 in a desired direction, with the laser cutting head and camera 20 positioned on either side of the detection port 11 in that direction. For example, the detection port 11 can be formed on the detection base 10 in a vertical direction, with the laser cutting head and camera 20 positioned on either side of the detection port 11 in the vertical direction; or, the detection port 11 can be formed on the detection base 10 in a horizontal direction, with the laser cutting head and camera 20 positioned on either side of the detection port 11 in that horizontal direction.

[0029] The camera 20 and the detection base 10 can be in a fixed or movable relationship. For example, the camera 20 is fixed below the detection port 11; or, the camera 20 is mounted on a drive device, and during detection, the drive device drives the camera 20 to move below the detection port 11, so that the lens of the camera 20 is aligned with the detection port 11.

[0030] In some embodiments, the coaxial detection device further includes a base 30 on which the camera 20 is mounted.

[0031] The base 30 is connected to the detection seat 10, so that the base 30 and the detection seat 10 form a whole, which can reduce the size of the coaxial detection device and make the camera 20 and the detection seat 10 fixed, so that the lens of the camera 20 is kept aligned with the detection port 11, avoiding secondary adjustment.

[0032] For example, such as Figure 1 As shown, the detection seat 10 is fixed above the base 30, and the detection port 11 is opened on the top surface of the detection seat 10. A cavity is formed inside the detection seat 10 and the base 30, and the camera 20 is located inside the cavity. The entire coaxial detection device can be fixed on the cutting equipment. The nozzle can be automatically fed and fixed in the cutting head sensor, which moves with the laser cutting head. After the nozzle is fed, the laser cutting head automatically moves to the top of the coaxial detection device and then moves downward, so that the nozzle and the cutting head sensor enter the detection port 11. The camera 20 then takes pictures of the nozzle and the cutting head sensor to confirm whether their coaxiality is qualified, ensuring that the center of the nozzle and the center of the laser cutting head sensor are aligned.

[0033] In some embodiments, the coaxial detection device further includes a buffer washer 40, which is disposed inside the detection port 11.

[0034] The buffer washer 40 can be made of materials such as rubber or elastomer plastic. When the laser cutting head is inserted into the detection port 11 for positioning, the buffer washer 40 can provide elastic cushioning for the movement of the laser cutting head, preventing damage to the cutting head or the detection seat 10.

[0035] Furthermore, a positioning port adapted to the shape of the laser cutting head can be opened on the buffer washer 40 to achieve positioning while buffering, thereby improving the positioning effect.

[0036] In some embodiments, the coaxial detection device further includes a nozzle fixing plate 50, which is connected to the detection seat 10. The nozzle fixing plate 50 has a plurality of replacement slots for inserting nozzles.

[0037] Multiple replacement slots can accommodate nozzles of different sizes. Depending on processing needs, the laser cutting head can be manually or automatically loaded here to select and replace the appropriate new nozzle. After nozzle replacement, the laser cutting head automatically moves above the detection port 11, then moves downwards, allowing the nozzle and cutting head sensor to enter the detection port 11. The camera 20 then takes pictures of the nozzle and cutting head sensor to confirm their coaxiality and ensure that the center of the nozzle and the laser cutting head sensor are aligned.

[0038] The nozzle fixing plate 50 is directly connected to the detection seat 10. The nozzle replacement and detection processes are set up together, so the nozzle can be directly detected after the nozzle is replaced, which improves the detection efficiency.

[0039] When the coaxiality of the nozzle and cutting head sensor is not up to standard, the control system can issue an alarm, causing the laser cutting head to re-perform the nozzle replacement operation, or have personnel inspect the equipment to troubleshoot the problem.

[0040] In some embodiments, the coaxial detection device further includes a protective lens 60 disposed between the detection port 11 and the camera 20.

[0041] The protective lens 60 is made of transparent material, which provides protection without affecting the detection, preventing external dust or impurities from falling onto the lens of the camera 20 through the detection port 11, thus avoiding affecting the detection accuracy of the camera 20.

[0042] The coaxial inspection device may also include a lens mounting assembly 70, on which a protective lens 60 is disposed. The lens mounting assembly 70 is movably connected to the inspection base 10, so that the protective lens 60 can be moved in / out between the camera 20 and the inspection port 11 along with the lens mounting assembly 70.

[0043] For example, the lens mounting assembly 70 can be moved by translation to first remove the protective lens 60 from the inspection channel for cleaning, and then the cleaned protective lens 60 can be put back into the inspection channel. Alternatively, the lens mounting assembly 70 can be rotated to first remove the protective lens 60 from the inspection channel for cleaning, and then the cleaned protective lens 60 can be put back into the inspection channel.

[0044] Please see Figure 3In some embodiments, the lens mounting assembly 70 may include a drawer box 71 and a lens cover 72. The drawer box 71 is movably connected to the detection seat 10, and the lens cover 72 is detachably connected to the drawer box 71. The protective lens 60 is snapped between the drawer box 71 and the lens cover 72.

[0045] The lens cover 72 serves to secure the protective lens 60. The drawer box 71 adopts a drawer structure and is slidably / rotatably located inside the testing seat 10. The outside is provided with an opening or handle for easy operation by the operator. By pulling the drawer box 71, the protective lens 60 can be moved into / out of the testing seat 10.

[0046] When the protective lens 60 becomes dirty or damaged, the drawer box 71 can be pulled out from the test seat 10. First, remove the lens cover 72, then remove the dirty or damaged protective lens 60 and replace it with a new protective lens 60. Then, reinstall the lens cover 72 and finally push the drawer box 71 into the test seat 10 to complete the replacement process.

[0047] In some embodiments, the lens mounting assembly 70 may further include a lens gasket 73, which wraps around the protective lens 60 and has a mounting groove 711 on the drawer box 71, so that the protective lens 60 is inserted into the mounting groove 711 together with the lens gasket 73.

[0048] The lens gasket 73 can be made of materials such as rubber or elastomer plastic. After wrapping the protective lens 60, it plays a role in buffering and protecting the protective lens 60, preventing the protective lens 60 from being broken due to external impact.

[0049] The lens gasket 73 may include two independent gaskets, which together enclose the protective lens 60; or the lens gasket 73 may be a single gasket with an annular groove in its inner ring, so that the protective lens 60 can be held in the annular groove to enclose the protective lens 60.

[0050] The mounting slot 711 serves to install and position the protective lens 60. Its size is adapted to the lens gasket 73 or the protective lens 60, so that the lens gasket 73 or the protective lens 60 is not easy to shake after it is installed.

[0051] A light source 80 can be set between the detection port 11 and the camera 20 to illuminate the outline of the nozzle and the cutting head sensor, so that the control system can easily identify the photograph after taking the picture, thereby improving the detection accuracy.

[0052] In some embodiments, the light source 80 may be a ring light source, which can illuminate the outline of the nozzle and cutting head sensor completely by emitting light in a ring without obstructing the detection channel, thus ensuring detection accuracy.

[0053] The ring light source can be installed inside the detection holder 10 or inside the base 30. Alternatively, as... Figure 2 As shown, a light source mounting base 90 can be provided between the detection base 10 and the base 30, and the ring light source is installed in the light source mounting base 90. The detection base 10, the light source mounting base 90 and the base 30 are connected in sequence to form a whole.

[0054] The base 30 may have a side opening to allow the camera 20 to be installed and removed through the opening, and a base cover 31 may be provided to cover the opening to prevent dust and impurities from entering the base 30 through the opening after the camera 20 is installed.

[0055] The light source 80 can also be removed through the opening in the base 30; or, an opening can be made on the side of the light source mounting base 90 to allow the light source 80 to be installed and removed through the opening, and a light source cover plate can be provided to cover the opening to prevent dust and impurities from entering the light source mounting base 90 through the opening after the light source 80 is installed.

[0056] It is understood that those skilled in the art can make equivalent substitutions or changes based on the technical solution and concept of this application, and all such substitutions or changes should fall within the protection scope of the appended claims.

Claims

1. A coaxial detection device, characterized in that, include: The detection seat has a detection port for positioning the laser cutting head and nozzle; as well as A camera, the lens of which is aimed at the detection port, to take pictures of the laser cutting head and nozzle.

2. The coaxial detection device according to claim 1, characterized in that, It also includes a base, on which the camera is mounted, and the detection seat is connected to the base.

3. The coaxial detection device according to claim 1, characterized in that, It also includes a protective lens, which is disposed between the detection port and the camera.

4. The coaxial detection device according to claim 3, characterized in that, It also includes a lens mounting assembly, on which the protective lens is disposed, and the lens mounting assembly is movably connected to the detection seat, so that the protective lens can be moved in / out between the camera and the detection port.

5. The coaxial detection device according to claim 4, characterized in that, The lens mounting assembly includes a drawer box and a lens cover. The drawer box is movably connected to the testing seat, and the lens cover is detachably connected to the drawer box. The protective lens is secured between the drawer box and the lens cover.

6. The coaxial detection device according to claim 5, characterized in that, The lens mounting assembly also includes a lens gasket. The drawer box has a mounting groove, and the lens gasket is disposed in the mounting groove. The lens gasket is used to wrap around the protective lens.

7. The coaxial detection device according to claim 1, characterized in that, It also includes a buffer washer, which is disposed inside the detection port.

8. The coaxial detection device according to claim 7, characterized in that, The buffer washer has a positioning opening, the shape of which is adapted to the shape of the laser cutting head.

9. The coaxial detection device according to claim 1, characterized in that, It also includes a ring light source, which is disposed between the detection port and the camera.

10. The coaxial detection device according to claim 1, characterized in that, It also includes a nozzle fixing plate, which is connected to the detection seat. The nozzle fixing plate has multiple replacement slots for inserting nozzles.

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