A contour vision detection device

Abstract

The utility model provides a contour visual inspection device, comprising a base, a first camera, a first light source, a mobile platform, a second camera and a second light source, wherein the mobile platform is arranged in the middle of the base, the second camera and the second light source are arranged on the base relatively, and are respectively located on both sides of the mobile platform, and the first camera and the first light source are movably mounted above the mobile platform through a lifting mechanism. The device can simultaneously perform appearance inspection on the upper surface and the surrounding sides of the product to be inspected, with high efficiency, and can meet large-scale inspection needs.

Description

Technical Field

[0001] The utility model relates to the field of visual detection, in particular to a contour visual detection device. Background Art

[0002] Steel plate drill (also known as hollow drill, core drill, casing drill, magnetic drill). It is a high-efficiency drill for multi-blade annular drilling. The drilling diameter ranges from 12mm to 150mm. It is mainly used in hole processing fields such as steel structure engineering, rail transportation, bridges, ships, machinery manufacturing, aerospace, etc. Its drilling performance is significantly better than that of traditional two-blade twist drills. It has the characteristics of high drilling efficiency, light drilling and labor-saving. Multi-blade steel plate drills and magnetic base drilling machines can be used to drill large workpieces in multiple directions. The operation is convenient and flexible, which effectively shortens the construction time of the project and becomes a tool for drilling holes and annular grooves of modern steel structures.

[0003] Due to the size requirements of the drill mouth and the drill tool, the drill bits produced must be within the tolerance range, otherwise it will have a great impact on the quality of the drilling and the installation of the drilling. Therefore, it is particularly important to measure the size of the head and tail of the processed drill bits to ensure their quality requirements and size. The currently commonly used inspection method is manual spot check, using calipers for measurement, which is inefficient and inaccurate, and does not meet the needs of mass production. Summary of the invention

[0004] In view of the above, the utility model provides a contour visual inspection device, which can simultaneously perform appearance inspection on the upper surface and surrounding sides of the product to be inspected, has high efficiency, and can meet large-scale inspection needs. The specific technical solution is as follows.

[0005] A contour vision detection device includes a base, a first camera, a first light source, a movable platform, a second camera and a second light source, wherein the movable platform is arranged in the middle of the base, the second camera and the second light source are arranged on the base relatively to each other and are respectively located on both sides of the movable platform, and the first camera and the first light source are movably mounted above the movable platform through a lifting mechanism.

[0006] Furthermore, the first light source is a ring light source, and the second light source is a parallel light source.

[0007] Furthermore, the lifting mechanism includes a first lifting module and a second lifting module, the first camera is arranged on the first lifting module, the first light source is arranged on the second lifting module, and the first camera and the first light source are independently movable and adjustable.

[0008] Furthermore, the first light source is located directly below the first camera.

[0009] Furthermore, the lifting mechanism is vertically arranged on the base through a support frame.

[0010] Furthermore, the movable platform includes a cylinder, a movable plate and a fixed seat, the cylinder is fixed on the base, the movable plate is arranged on the slide of the cylinder and moves therewith, and the fixed seat is arranged on the movable plate for fixing and installing the product to be tested.

[0011] Furthermore, a slide rail is arranged at the bottom of the movable plate, and there are two slide rails. Slide blocks are also arranged on the base and are respectively located on both sides of the cylinder. The slide rail is connected with the slide block in a sliding manner.

[0012] Furthermore, the distance between the first camera and the moving stage is greater than the distance between the second camera and the moving stage.

[0013] Furthermore, the second camera and the second light source are arranged on the base via a mounting seat.

[0014] Furthermore, a detachable protective casing is disposed outside the first camera, the first light source, the second camera and the second light source.

[0015] The utility model discloses a contour visual inspection device, which is provided with a first camera and a second camera to simultaneously inspect the upper surface and surrounding sides of the product to be inspected. The device has a measuring function and can automatically measure the appearance dimensions of the product, such as the outer contour, aperture and other dimensions. A linear motion mechanism is provided to carry the product and can detect the outer diameter dimensions of multiple positions of the product. The device has high efficiency and accurate inspection results. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is the overall structural diagram of the contour vision detection device of the utility model.

[0017] Figure 2 This is a schematic diagram of the contour vision detection device of the present invention (without the protective housing).

[0018] Figure 3 It is a schematic diagram of the positions of the first camera, the first light source and the product in the utility model.

[0019] Figure 4 It is a schematic diagram of the positions of the second camera, the second light source and the product in the utility model. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the term "disposed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0023] A contour visual inspection device of the present embodiment includes a base 1, a first camera 2, a first light source 3, a movable platform 4, a second camera 5 and a second light source 6. The movable platform 4 is arranged in the middle of the base 1. The first camera 2 and the first light source 3 are movably mounted above the movable platform 4 through a lifting mechanism, and are used to detect the upper surface contour and size of the product 100 to be tested on the movable platform 4. The second camera 5 and the second light source 6 are arranged on the base 1 in parallel and opposite to each other through a mounting seat 7, and are respectively located on both sides of the movable platform 4, and the central axes of the two are located at the same horizontal height, and are used to detect the side contour and size of the product to be tested on the movable platform 4. The first camera 2 and the second camera 5 are both equipped with a telecentric lens 200.

[0024] Specifically, the first light source 3 is an annular light source, which is located directly below the first camera 2 and provides illumination for the first camera 2, and the second light source 6 is a parallel light source, which provides illumination for the second camera 5. In this embodiment, the distance between the first camera 2 and the mobile stage 4 is greater than the distance between the second camera 5 and the mobile stage 4. In this embodiment, the product 100 to be tested is placed on the mobile stage 4, and the positions of the first camera 2 and the first light source 3 are adjusted. The first camera 2 is adjustable within a range of 293-233 mm from the upper surface of the product 100 to be tested, and the first light source 3 is adjustable within a range of 40-170 mm from the surface of the mobile stage 4.

[0025] The mounting base 7 of the second camera 5 and the second light source 6 can use an existing manual fine-tuning slide to allow the second camera 5 to be horizontally fine-tuned within a range of 208-148 mm from the bottom of the product 100 to be tested, and the second light source 6 to be horizontally fine-tuned within a range of 90-150 mm from the bottom of the product 100 to be tested.

[0026] The lifting mechanism is vertically fixed on the base 1 through the support frame 10 and is located at one end of the moving direction of the movable platform 4. The lifting mechanism includes a first lifting module 8 and a second lifting module 9. The first camera 2 is arranged on the first lifting module 8, and the first light source 3 is arranged on the second lifting module 9. The first camera 2 and the first light source 3 are independently movable and adjustable. The first lifting module 8 and the second lifting module 9 are the same linear modules, which are used to drive the first camera 2 and the first light source 3 to perform lifting movement in the vertical direction.

[0027] The mobile platform 4 includes a cylinder 41, a mobile plate 42 and a fixed seat 43. The cylinder 41 is a rodless cylinder fixed on the base 1. The mobile plate 42 is arranged on the slide of the cylinder 41 and moves with it. The fixed seat 43 is fixedly arranged on the mobile plate 42 and is used to fix and install the product to be tested 100. A slide rail 44 is fixedly arranged at the bottom of the mobile plate 42. There are two slide rails 44. The base 1 is also provided with a slider 45, which is respectively located on both sides of the cylinder 41. The slide rail 44 is slidably connected with the slider 45, and plays a guiding and stabilizing role when the mobile plate 42 moves.

[0028] In addition, a detachable protective casing 11 is disposed outside the first camera 2 , the first light source 3 , the second camera 5 and the second light source 6 .

[0029] During inspection, the movable plate 42 is extended, and the product to be tested 100 is placed in the mounting hole on the fixing seat 43 and fixed. The movable plate 42 is retracted to the inspection position directly below the first camera 2, and the first camera 2 is raised and lowered to the set working distance to obtain a clear image of the head of the product to be tested 100. The second camera 5 takes pictures of the side and tail of the product to be tested. In the above, the first camera 2 and the second camera 3 jointly obtain the overall image of the product to be tested, and its appearance contour and size are directly calculated and analyzed by the data processing system and algorithm, so as to achieve the effect of quickly and accurately detecting the product appearance.

[0030] In addition, the above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. The understanding of this specification should be based on the technical personnel in the relevant technical field. Although this specification has described the present invention in detail with reference to the above embodiments, ordinary technical personnel in the field should understand that the technical personnel in the relevant technical field can still modify or make equivalent substitutions to the present invention, and all technical solutions and improvements thereof that do not depart from the spirit and scope of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A contour vision detection device, characterized in that: It includes a base, a first camera, a first light source, a movable platform, a second camera and a second light source, wherein the movable platform is arranged in the middle of the base, the second camera and the second light source are relatively arranged on the base and are respectively located on both sides of the movable platform, and the first camera and the first light source are movably mounted above the movable platform through a lifting mechanism.

2. The contour vision detection device according to claim 1, characterized in that: The first light source is a ring light source, and the second light source is a parallel light source.

3. The contour vision detection device according to claim 1, characterized in that: The lifting mechanism includes a first lifting module and a second lifting module. The first camera is arranged on the first lifting module, and the first light source is arranged on the second lifting module. The first camera and the first light source move independently.

4. The contour vision detection device according to claim 3, characterized in that: The first light source is located directly below the first camera.

5. The contour vision detection device according to claim 1, characterized in that: The lifting mechanism is vertically arranged on the base through a supporting frame.

6. The contour vision detection device according to claim 1, characterized in that: The movable platform comprises a cylinder, a movable plate and a fixed seat, wherein the cylinder is fixed on a base, the movable plate is arranged on a slide table of the cylinder and moves therewith, and the fixed seat is arranged on the movable plate and is used for placing the product to be tested.

7. The contour vision detection device according to claim 6, characterized in that: A slide rail is arranged at the bottom of the movable plate, and there are two slide rails. Slide blocks are also arranged on the base and are respectively located at two sides of the cylinder. The slide rail is connected with the slide block in a sliding manner.

8. The contour vision detection device according to any one of claims 1 to 7, characterized in that: The distance between the first camera and the moving stage is greater than the distance between the second camera and the moving stage.

9. The contour vision detection device according to claim 1, characterized in that: The second camera and the second light source are arranged on the base through a mounting seat.

10. The contour vision detection device according to claim 1, characterized in that: A detachable protective casing is disposed outside the first camera, the first light source, the second camera and the second light source.

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