Visual positioning mechanism for laser cutting

Abstract

The utility model discloses a laser cutting visual positioning mechanism, and belongs to the field of laser cutting machines. A laser cutting visual positioning mechanism comprises a fixing support, an industrial camera and a light supplementing lamp, the industrial camera and the light supplementing lamp are detachably installed on the fixing support, the light supplementing lamp is located at the lower end of the industrial camera, the laser cutting visual positioning mechanism further comprises a polarizer, the polarizer is installed on the fixing support, an adjusting piece is arranged on the fixing support, and when the adjusting piece works, the light supplementing lamp is located at the lower end of the industrial camera. The polarizer moves to the position below the industrial camera and rotates; according to the utility model, the position and the polarization angle of the polarizer are accurately adjusted and controlled through the adjusting piece, the adjusting time can be shortened, the imaging quality and the shooting efficiency of the industrial camera can be improved, and meanwhile, the height of the industrial camera is adjusted through the telescopic piece, so that the industrial camera is adaptive to shooting scenes with different sizes and patterns; therefore, the shooting precision of the industrial camera is improved.

Description

A laser cutting vision positioning mechanism Technical Field

[0001] This utility model relates to the field of laser cutting machine technology, and in particular to a laser cutting vision positioning mechanism. Background Technology

[0002] Laser machines are a general term encompassing laser engraving machines, laser cutting machines, and laser marking machines. They utilize high temperatures to act on the surface of the material being processed, simultaneously drawing patterns, text, etc., based on the graphics input into the machine. Laser engraving machines can be further subdivided into non-metallic laser engraving machines, such as those for wood crafts and stone carving. During laser cutting, visual positioning is necessary to prevent undetected deviations in the cutting path.

[0003] Visual positioning uses industrial cameras to capture images of targets, converts the captured images into corresponding image signals, and transmits them to an image processing system. Subsequently, the image processing software analyzes and processes these signals to extract the target's feature information, covering multiple aspects such as quantity, angle, size, and position, thereby achieving automatic identification of the captured object. This technology provides precise positioning basis for laser processing, ensuring that the processing can be carried out according to predetermined requirements.

[0004] However, in practical applications, due to the wide variety of materials being processed, materials with reflective properties such as metals, plastics, and leather are prone to overexposure or shadows under lighting. To solve this problem, it is usually necessary to manually adjust the polarizing filter on the industrial camera lens and observe the adjustment effect through an external monitor until the appropriate angle is achieved. However, this repeated adjustment method is not only inefficient but also easily affects the processing progress of the material. In addition, industrial cameras are usually fixedly mounted on a bracket, making height adjustment inconvenient. When encountering materials with small surface patterns, the fixed shooting angle and height may not meet the shooting requirements, resulting in a decrease in shooting quality and thus affecting the overall processing quality of the laser cutting machine. Summary of the Invention

[0005] The purpose of this invention is to solve the problems in the prior art where, after exposure by an industrial camera, the polarizing filter needs to be manually rotated and adjusted, and the height of the industrial camera is inconvenient to adjust, which easily leads to unclear line imaging when shooting materials with small patterns, thus affecting the material cutting quality. Therefore, a laser cutting vision positioning mechanism is proposed.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A laser cutting vision positioning mechanism includes a fixed bracket and an industrial camera and a fill light detachably mounted on the fixed bracket. The fill light is located at the lower end of the industrial camera. The mechanism also includes a polarizing filter mounted on the fixed bracket, wherein the fixed bracket has an adjustment mechanism that, when the adjustment mechanism is activated, moves the polarizing filter below the industrial camera and rotates. A connecting frame is disposed at the top of the fixed bracket, and the connecting frame has a telescopic component for driving the fixed bracket to move vertically.

[0008] For adjusting the position and polarization angle of the polarizer, preferably, the adjusting component includes: a first electric push rod, fixedly mounted on the fixed bracket, wherein the telescopic end of the first electric push rod passes through the fixed bracket and is fixedly connected to a support frame, and a gear ring rotatably connected to the support frame and sleeved with the polarizer; a drive motor fixedly connected to the support frame, wherein the output end of the drive motor passes through the support frame and is fixedly connected to a gear, and the side of the gear near the gear ring meshes with the gear ring.

[0009] To further limit the position of the gear ring, the support frame is provided with an annular groove, and an annular ring that is fixedly connected to the gear ring is rotatably connected in the annular groove.

[0010] To further limit the position of the support frame, at least one T-shaped rod is fixedly connected to one side of the support frame, and the T-shaped rod is slidably connected to the fixed bracket.

[0011] For height adjustment of the industrial camera, preferably, the telescopic component includes a second electric push rod fixedly mounted on the connecting frame, the telescopic end of the second electric push rod passing through the connecting frame and fixedly connected to the fixed bracket.

[0012] To improve the stability of the vertical movement of the fixed bracket, preferably, the connecting frame is provided with a limiting groove, and a limiting frame that is fixedly connected to the fixed bracket is slidably connected in the limiting groove.

[0013] To further limit the vertical movement of the limiting frame, the number of limiting slots is 2 to 4.

[0014] To facilitate the installation of the connecting frame, preferably, the connecting frame is provided with an installation groove.

[0015] Compared with the prior art, the present invention provides a laser cutting vision positioning mechanism, which has the following beneficial effects:

[0016] 1. This laser cutting vision positioning mechanism, through the setting of the adjustment component, uses the first electric push rod to drive the carrier and polarizing mirror to move when the industrial camera is exposed, which can adjust the position of the polarizing mirror. Then, the drive motor drives the gear to rotate, which can adjust the polarization angle of the polarizing mirror, thereby improving the imaging quality of the industrial camera.

[0017] 2. This laser cutting vision positioning mechanism, through the setting of the second electric push rod, can adjust the height of the fixed bracket and the industrial camera, thereby increasing the applicability of the industrial camera;

[0018] 3. This laser cutting vision positioning mechanism, through the setting of T-shaped rods, can limit the support frame, thereby improving the accuracy of polarizing mirror movement.

[0019] The parts of this device not described herein are the same as or can be implemented using existing technologies. This utility model uses an adjustment component to precisely control the position and polarization angle of the polarizing mirror, which can reduce adjustment time and improve the imaging quality and shooting efficiency of the industrial camera. At the same time, the height of the industrial camera can be adjusted by the telescopic component, making the industrial camera adaptable to shooting scenarios of different sized patterns, thereby improving the shooting accuracy of the industrial camera. Attached Figure Description

[0020] Figure 1 is a first-view structural isometric schematic diagram of a laser cutting visual positioning mechanism proposed in this utility model.

[0021] Figure 2 is a second-view isometric schematic diagram of the structure of a laser cutting visual positioning mechanism proposed in this utility model.

[0022] Figure 3 is a cross-sectional schematic diagram of the fixed support structure of a laser cutting visual positioning mechanism proposed in this utility model;

[0023] Figure 4 is a partial exploded view of the laser cutting visual positioning mechanism proposed in this utility model;

[0024] Figure 5 is an isometric schematic diagram of the toothed ring structure of a laser cutting visual positioning mechanism proposed in this utility model;

[0025] Figure 6 is an isometric schematic diagram of the connecting frame structure of a laser cutting visual positioning mechanism proposed in this utility model.

[0026] In the diagram: 1. Fixed bracket; 2. Industrial camera; 3. Fill light; 4. Polarizing filter; 5. First electric actuator; 51. Support frame; 52. Gear ring; 53. Drive motor; 54. Gear; 55. Annular groove; 56. Annular ring; 57. T-shaped rod; 6. Connecting frame; 7. Second electric actuator; 8. Limiting groove; 9. Limiting frame; 10. Mounting groove. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0028] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] Example:

[0030] Referring to Figures 1-6, a laser cutting vision positioning mechanism includes a fixed bracket 1 and an industrial camera 2 and a supplementary light 3 detachably mounted on the fixed bracket 1. The supplementary light 3 is located at the lower end of the industrial camera 2. The preferred model of the industrial camera 2 is Hikvision MV-CU020-90GC. The mechanism also includes a polarizing filter 4, which is mounted on the fixed bracket 1. The fixed bracket 1 is provided with an adjustment component. When the adjustment component is working, the polarizing filter 4 moves to the bottom of the industrial camera 2 and rotates to adjust the angle of the polarizing filter 4. A connecting frame 6 is provided on the top of the fixed bracket 1. The connecting frame 6 has a mounting groove 10 and a telescopic component for driving the fixed bracket 1 to move vertically.

[0031] Specifically, by adjusting the position and polarization angle of the polarizing mirror 4, the adjustment time can be reduced, and the imaging quality and shooting efficiency of the industrial camera 2 can be improved. At the same time, by adjusting the height of the industrial camera 2 through the telescopic component, the industrial camera 2 can be adapted to shooting scenarios with different sized patterns, thereby improving the shooting accuracy of the industrial camera 2.

[0032] The adjusting components include: a first electric push rod 5, fixedly mounted on a fixed bracket 1, wherein the telescopic end of the first electric push rod 5 passes through the fixed bracket 1 and is fixedly connected to a support frame 51, and a gear ring 52 rotatably connected to the support frame 51 and sleeved with a polarizing mirror 4, the gear ring 52 having a hollow structure, and the polarizing mirror 4 being placed inside the gear ring 52; and a drive motor 53 fixedly connected to the support frame 51, wherein the output end of the drive motor 53 passes through the support frame 51 and is fixedly connected to a gear 54, the gear 54 being located on the side near the gear ring 52. Engaging with the gear ring 52, the support frame 51 has an annular groove 55. An annular ring 56, which is fixedly connected to the gear ring 52, is rotatably connected in the annular groove 55. The gear ring 52 can be limited by the cooperation of the annular ring 56 and the annular groove 55. At least one T-shaped rod 57 is fixedly connected to one side of the support frame 51. The number of T-shaped rods 57 is 1 to 2, preferably 2. The T-shaped rods 57 are slidably connected to the fixed bracket 1. The support frame 51 can be limited by the T-shaped rods 57, thereby improving the accuracy of the movement of the polarizing mirror 4.

[0033] Specifically, by adjusting the settings, when the industrial camera 2 is taking a picture and exposing, the first electric push rod 5 drives the support frame 51 and the polarizing mirror 4 to move, thereby adjusting the position of the polarizing mirror 4. Then, the drive motor 53 drives the gear 54 to rotate, thereby adjusting the polarization angle of the polarizing mirror 4, thereby improving the imaging quality of the industrial camera 2.

[0034] The telescopic component includes a second electric push rod 7 fixedly installed on the connecting frame 6, and the telescopic end of the second electric push rod 7 is fixedly connected to the fixed bracket 1.

[0035] Specifically, by setting the second electric push rod 7, the height of the fixed bracket 1 and the industrial camera 2 can be adjusted, thereby increasing the applicability of the industrial camera 2.

[0036] The connecting frame 6 has a limiting groove 8, the number of which is 2 to 4, preferably 4. A limiting frame 9 that is fixedly connected to the fixed bracket 1 is slidably connected in the limiting groove 8, the number of which is 1 to 2, preferably 2.

[0037] Specifically, by cooperating with the limiting groove 8 and the limiting frame 9, the fixed bracket 1 can be limited, thereby improving its vertical movement stability.

[0038] Working principle: When photographing materials with reflective properties, the operator uses an external control switch to activate the first electric push rod 5. The telescopic end of the first electric push rod 5 drives the carrier frame 51 to move. When the carrier frame 51 moves, it drives the polarizing filter 4 to move. When the polarizing filter 4 moves to the bottom of the lens of the industrial camera 2, the drive motor 53 is activated. The output end of the drive motor 53 drives the gear 54 to rotate. When the gear 54 rotates, it drives the gear ring 52 to rotate. When the gear ring 52 rotates, it drives the polarizing filter 4 to rotate. This allows the polarization angle of the polarizing filter 4 to be adjusted. By adjusting the polarizing filter 4 using the adjustment mechanism, the time required for manual adjustment can be effectively shortened, thereby improving the shooting efficiency of the industrial camera 2.

[0039] When shooting patterns of different sizes, the staff uses an external control switch to activate the second electric push rod 7. The telescopic end of the second electric push rod 7 drives the fixed bracket 1 to move vertically, which can adjust the height of the industrial camera 2, thereby achieving precise positioning of the pattern and effectively improving the cutting quality of the laser cutting machine.

[0040] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A laser cutting vision positioning mechanism, comprising a fixed bracket (1) and an industrial camera (2) and a fill light (3) detachably mounted on the fixed bracket (1), wherein the fill light (3) is located at the lower end of the industrial camera (2), characterized in that, Also includes: A polarizing filter (4) is mounted on the fixed bracket (1), wherein the fixed bracket (1) is provided with an adjustment component. When the adjustment component is working, the polarizing filter (4) moves to below the industrial camera (2) and rotates. A connecting frame (6) is provided on the top of the fixed bracket (1), and the connecting frame (6) is provided with a telescopic component for driving the fixed bracket (1) to move vertically.

2. The laser cutting visual positioning mechanism according to claim 1, characterized in that, The adjusting component includes: a first electric push rod (5), which is fixedly installed on the fixed bracket (1), wherein the telescopic end of the first electric push rod (5) passes through the fixed bracket (1) and is fixedly connected to a support frame (51), and a gear ring (52) that is rotatably connected to the support frame (51) and sleeved with the polarizing mirror (4); a drive motor (53) fixedly connected to the support frame (51), wherein the output end of the drive motor (53) passes through the support frame (51) and is fixedly connected to a gear (54), and the side of the gear (54) near the gear ring (52) meshes with the gear ring (52).

3. The laser cutting visual positioning mechanism according to claim 2, characterized in that, The support frame (51) has an annular groove (55), and an annular ring (56) that is fixedly connected to the gear ring (52) is rotatably connected in the annular groove (55).

4. The laser cutting visual positioning mechanism according to claim 2, characterized in that, At least one T-shaped rod (57) is fixedly connected to one side of the support frame (51), and the T-shaped rod (57) is slidably connected to the fixed bracket (1).

5. A laser cutting visual positioning mechanism according to claim 1, characterized in that, The telescopic component includes a second electric push rod (7) fixedly installed on the connecting frame (6), and the telescopic end of the second electric push rod (7) passes through the connecting frame (6) and is fixedly connected to the fixed bracket (1).

6. The laser cutting visual positioning mechanism according to claim 1, characterized in that, The connecting frame (6) has a limiting groove (8), and a limiting frame (9) that is fixedly connected to the fixed bracket (1) is slidably connected in the limiting groove (8).

7. A laser cutting visual positioning mechanism according to claim 6, characterized in that, The number of the limiting grooves (8) is 2 to 4.

8. The laser cutting visual positioning mechanism according to claim 1, characterized in that, The connecting frame (6) is provided with an installation slot (10).

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