Diameter detection device for bar

Abstract

The utility model relates to the technical field of bar detection, and provides a diameter detection device for bars, which comprises a mounting seat, a detection assembly, a conveying assembly and an image processing part, the detection assembly comprises an optical detection piece and a parallel light source; the conveying assembly comprises a connecting seat, a plurality of conveying rollers and a driving part; the connecting seat is arranged on one side, close to the optical detection piece, of the mounting seat and is positioned between the optical detection piece and the parallel light source; the driving part is used for driving the multiple conveying rollers to rotate synchronously so as to drive a bar to move in the length direction of the connecting base, and the parallel light source is located between the two conveying rollers and is perpendicular to the bar; and the image processing part is electrically connected with the optical detection part so as to receive the image of the optical detection part and calculate the diameter of the bar in the image. On the basis, the bar diameter detection efficiency can be improved, and the phenomena of wrong detection, missing detection and false detection are reduced.

Description

Technical Field

[0001] The present application relates to the field of bar material detection, and in particular to a diameter detection device for bar material. Background Art

[0002] Bars are steel products delivered in straight strips with simple cross-sections such as round, square, flat, hexagonal, and octagonal. Round bars require diameter testing of all sections after production to determine if the bar's dimensions meet standards.

[0003] In related technologies, bar diameter detection is usually carried out through manual measurement and sorting. Specifically, the inspector uses a micrometer to measure the bar diameter value and sorts it according to the qualified size standard. Each bar needs to be measured at multiple positions, and relies on the proficiency and accuracy of the inspector to ensure the inspection efficiency and the accuracy of the qualified products finally leaving the factory. This results in low bar diameter detection efficiency, and it is inevitable that there will be false detection, missed detection and misdetection, so it needs to be improved. Utility Model Content

[0004] In order to improve the efficiency of bar diameter detection and reduce false detection, missed detection and misdetection, the present application provides a diameter detection device for bar.

[0005] The present application provides a diameter detection device for a bar material using the following technical solution:

[0006] A diameter detection device for rods, comprising a mounting seat, a detection component, a conveying component and an image processing component; the detection component comprises an optical detection component and a parallel light source; the optical detection component and the parallel light source are arranged on one side of the mounting seat and are arranged opposite to each other; the conveying component comprises a connecting seat, a plurality of conveying rollers and a driving component; the connecting seat is arranged on a side of the mounting seat close to the optical detection component and is located between the optical detection component and the parallel light source; a plurality of the conveying rollers are rotatably connected to the connecting seat and are arranged at intervals along the length direction of the connecting seat; the driving component is used to drive the plurality of conveying rollers to rotate synchronously to drive the rod to move along the length direction of the connecting seat, and the parallel light source is located between two of the conveying rollers and is arranged perpendicular to the rod; the image processing component is electrically connected to the optical detection component to receive an image of the optical detection component and calculate the diameter of the rod in the image.

[0007] By adopting the above technical solution, in actual application, the driving part drives multiple conveyor rollers to rotate synchronously, and the rod is placed on the conveyor rollers, so that the rod moves along the length direction of the connecting seat, and the optical detection part continues to shoot. When the rod passes through the parallel light source, the optical detection part can obtain an image reflecting the diameter of the rod through the gap between the two conveyor rollers, and the optical detection part transmits the image to the image processing part. The image processing part processes the input image and calculates the diameter of the rod at that part. In this way, the diameter of multiple positions of the rod can be quickly detected, thereby improving the efficiency of rod diameter detection, and the detection result is accurate, which can effectively reduce false detection, missed detection and misdetection.

[0008] Preferably, the optical detection component is a CCD camera.

[0009] By adopting the above technical solution and setting the optical detection component as a CCD camera, the moving rod can be photographed.

[0010] Preferably, the optical detection component is a COMS camera.

[0011] By adopting the above technical solution and setting the optical detection component as a COMS camera, the moving rod can be photographed.

[0012] Preferably, each of the conveying rollers is provided with a limiting groove along the length direction of the connecting seat.

[0013] By adopting the above technical solution and setting the limiting groove to limit the position of the bar, the effect of bar conveying is guaranteed.

[0014] Preferably, the conveying assembly further includes a reinforcement plate, and the reinforcement plate is arranged on a side of the connecting base away from the parallel light source.

[0015] By adopting the above technical solution and setting a reinforcement plate, the reinforcement plate can improve the structural strength of the connecting seat and can also block external light sources, making the detection effect of the optical detection part more accurate, thereby improving the accuracy of rod diameter detection.

[0016] Preferably, the mounting seat includes a seat body and a sliding platform, the sliding platform is slidably connected to the seat body along the length direction of the seat body, and the optical detection component is arranged on the sliding platform; the diameter detection device also includes an adjustment component, the adjustment component includes a servo motor and a screw rod, the servo motor is arranged on the seat body, and the screw rod is arranged on the servo motor and threadedly connected to the sliding platform.

[0017] By adopting the above technical solution, by setting the base body, sliding table, servo motor and screw, the servo motor drives the screw to rotate to drive the sliding table to slide, so as to adjust the distance between the optical detection part and the connecting seat, thereby adjusting the shooting distance between the optical detection part and the rod to obtain a clear image, so that it is suitable for rods of different sizes.

[0018] Preferably, the mounting seat further includes a slide rail and a slider, the slide rail is provided on the seat body, the slider is provided on the sliding platform, and the slider is slidably connected to the slide rail.

[0019] By adopting the above technical solution and arranging the slide rail and the slider, the sliding stability of the slide table is improved, thereby improving the stability of the position adjustment of the optical detection component.

[0020] Preferably, the adjustment component further includes an origin switch sensor, and the origin switch sensor is arranged on the base.

[0021] By adopting the above technical solution and setting an origin switch sensor, the accuracy of the position adjustment of the optical detection component is guaranteed, thereby improving the accuracy of the diameter detection of bars of different sizes.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. In actual application, the driving component drives multiple conveyor rollers to rotate synchronously. The bar is placed on the conveyor rollers, causing the bar to move along the length of the connecting seat. The optical detection component continuously takes pictures. When the bar passes through the parallel light source, the optical detection component can obtain an image reflecting the diameter of the bar through the gap between the two conveyor rollers. The optical detection component transmits the image to the image processing component, which processes the input image and calculates the diameter of the bar at that location. In this way, the diameter of multiple locations on the bar can be quickly detected, thereby improving the efficiency of bar diameter detection and achieving accurate detection results, which can effectively reduce false detection, missed detection, and misdetection.

[0024] 2. By setting up a reinforcement plate, the reinforcement plate can improve the structural strength of the connecting seat and also block external light sources, making the detection effect of the optical detection part more accurate, thereby improving the accuracy of bar diameter detection;

[0025] 3. By setting the origin switch sensor, the accuracy of the position adjustment of the optical detection component is ensured, thereby improving the accuracy of the diameter detection of bars of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 Schematic diagram of the overall structure of the diameter detection device in the embodiment of the present application;

[0027] Figure 2It is a schematic diagram of the overall structure of the diameter detection device in an embodiment of the present application.

[0028] Figure numerals: 1. Mounting seat; 11. Seat body; 12. Slide table; 13. Slide rail; 14. Slider; 2. Detection assembly; 21. Optical detection component; 22. Parallel light source; 3. Conveying assembly; 31. Connecting seat; 32. Conveying roller; 321. Limiting groove; 33. Driving member; 34. Reinforcement plate; 4. Adjustment assembly; 41. Servo motor; 42. Screw rod; 43. Origin switch sensor. DETAILED DESCRIPTION

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0030] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0031] The following is combined with Figure 1-2 This application is described in further detail.

[0032] An embodiment of the present application discloses a diameter detection device for a bar.

[0033] Reference Figure 1 The diameter detection device includes a mounting base 1, a detection component 2, a conveying component 3 and an image processing component (not shown in the figure). The mounting base 1 is vertically arranged, wherein the detection component 2 includes an optical detection component 21 and a parallel light source 22. The optical detection component 21 and the parallel light source 22 are fixedly connected to one side of the mounting base 1 and are arranged opposite to each other, so that the optical detection component 21 can receive and detect the light of the parallel light source 22. At the same time, the optical detection component 21 is electrically connected to the image processing component, and the image processing component is an industrial computer that can receive and process images.

[0034] The conveying assembly 3 includes a connecting seat 31, multiple conveying rollers 32 and a driving member 33. The connecting seat 31 is fixedly connected to the mounting seat 1 on one side of the optical detection member 21 and is arranged along the length direction of the mounting seat 1. The connecting seat 31 is located between the optical detection member 21 and the parallel light source 22. The lower end of the connecting seat 31 has an opening for light from the parallel light source 22 to pass through.

[0035] Multiple conveyor rollers 32 are horizontally rotatably connected to the connecting base 31 and are evenly spaced along the length of the connecting base 31. A driving member 33 is mounted on the connecting base 31 and is used to drive the multiple conveyor rollers 32 to rotate synchronously, thereby driving the rod to move along the length of the connecting base 31. At the same time, the parallel light source 22 is located between two conveyor rollers 32. In this embodiment, the driving member 33 uses a motor to drive a chain for transmission, and one end of each conveyor roller 32 is provided with a sprocket that engages with the chain to achieve synchronous rotation of the conveyor rollers 32. In other embodiments, this can also be achieved by using a motor and gears, which is not limited in this application.

[0036] In actual application, the driving part 33 drives multiple conveying rollers 32 to rotate synchronously, and the rod is placed on the conveying roller 32, so that the rod moves along the length direction of the connecting seat 31, and the optical detection part 21 continues to shoot. When the rod passes through the parallel light source 22, the optical detection part 21 can obtain an image reflecting the diameter of the rod through the gap between the two conveying rollers 32, and the optical detection part 21 transmits the image to the image processing part. The image processing part processes the input image and calculates the diameter of the rod at that part. In this way, the diameter of multiple position points of the rod can be quickly detected, thereby improving the efficiency of rod diameter detection, and the detection results are accurate, which can effectively reduce false detection, missed detection and misdetection.

[0037] In some embodiments, the optical detection element 21 is a CCD camera. CCD cameras have advantages such as high sensitivity, strong light resistance, low distortion, small size, long life, and vibration resistance, ensuring stable and accurate imaging of moving rods. In other embodiments, the optical detection element 21 may also be a CMOS camera. CMOS cameras have significant advantages such as low power consumption, high sensitivity, fast response, low noise, high integration, and low cost.

[0038] In some embodiments, each conveying roller 32 is provided with a limiting groove 321 along the length direction of the connecting seat 31. The limiting groove 321 is arranged in a "V" shape. The rod is located in the limiting groove 321 of each conveying roller 32 to limit the position of the rod and try to avoid the rod from being offset during the conveying process, thereby ensuring the effect of rod conveying and improving the accuracy of rod diameter detection.

[0039] In some embodiments, the conveying assembly 3 also includes a reinforcement plate 34, which is arranged in a rectangular plate shape and is fixedly connected to the upper side of the connecting seat 31. There is an opening in the middle position of the conveying plate so that the light of the parallel light source 22 can pass through. The reinforcement plate 34 can improve the overall structural strength of the connecting seat 31, and can also block external light sources, so that the detection effect of the optical detection component 21 is more accurate, thereby improving the accuracy of the rod diameter detection.

[0040] Reference Figure 1 and Figure 2 In some embodiments, the mounting base 1 includes a base body 11 and a sliding platform 12. The sliding platform 12 is slidably connected to the base body 11 along the length direction of the base body 11, and the optical detection component 21 is fixedly connected to the side of the sliding platform 12 away from the base body 11. At the same time, the diameter detection device also includes an adjustment component 4. Specifically, the adjustment component 4 includes a servo motor 41 and a screw rod 42. The servo motor 41 is vertically fixedly connected to the base body 11. One end of the screw rod 42 is fixedly connected to the power output shaft of the servo motor 41, and the screw rod 42 is threadedly connected to the sliding platform 12. During operation, the servo motor 41 drives the screw rod 42 to rotate to drive the sliding platform 12 to slide, thereby adjusting the distance between the optical detection component 21 and the connecting base 31, and then adjusting the shooting distance between the optical detection component 21 and the rod to obtain a clear image, thereby being suitable for rods of different sizes.

[0041] In some embodiments, the mounting seat 1 also includes a slide rail 13 and a slider 14, the slide rail 13 is fixedly connected to the seat body 11, the slider 14 is fixedly connected to the sliding platform 12, and the slider 14 is slidably connected to the slide rail 13 to improve the sliding stability of the sliding platform 12, thereby improving the stability of the position adjustment of the optical detection component 21.

[0042] In some embodiments, the adjustment component 4 also includes an origin switch sensor 43, which is fixedly connected to the base body 11. When adjusting the position of the optical detection component 21 and the connecting base 31, the servo motor 41 drives the screw rod 42 to rotate, causing the slide table 12 to slide so that the slide table 12 contacts the origin switch sensor 43. At this time, the slide table 12 is located at the origin position. The servo motor 41 is then controlled to work according to the diameter of the rod to ensure the accuracy of the position adjustment of the optical detection component 21, thereby improving the accuracy of the diameter detection of rods of different sizes.

[0043] In some embodiments, the mounting base 1 is fixed horizontally to the lower side of the connecting base 31 , so that the diameter of bars of different sizes can be detected without adjusting the position of the optical detection component 21 .

[0044] The implementation principle of this embodiment is: in actual application, the driving part 33 drives multiple conveying rollers 32 to rotate synchronously, and the rod is placed on the conveying roller 32, so that the rod moves along the length direction of the connecting seat 31, and the optical detection part 21 continues to shoot. When the rod passes through the parallel light source 22, the optical detection part 21 can obtain an image reflecting the diameter of the rod through the gap between the two conveying rollers 32, and the optical detection part 21 transmits the image to the image processing part. The image processing part processes the input image and calculates the diameter of the rod at that part. In this way, the diameter of multiple position points of the rod can be quickly detected, thereby improving the efficiency of rod diameter detection, and the detection results are accurate, which can effectively reduce false detection, missed detection and misdetection.

[0045] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A diameter detection device for a bar, characterized in that: The invention comprises a mounting seat (1), a detection component (2), a conveying component (3) and an image processing component; the detection component (2) comprises an optical detection component (21) and a parallel light source (22); the optical detection component (21) and the parallel light source (22) are arranged on one side of the mounting seat (1) and are arranged opposite to each other; the conveying component (3) comprises a connecting seat (31), a plurality of conveying rollers (32) and a driving component (33); the connecting seat (31) is arranged on a side of the mounting seat (1) close to the optical detection component (21) and is located between the optical detection component (21) and the parallel light source (22); a plurality of the conveying rollers (32) are rotatably connected to the connecting seat (31) and are spaced apart along the length direction of the connecting seat (31); the driving member (33) is used to drive the plurality of the conveying rollers (32) to rotate synchronously to drive the rod to move along the length direction of the connecting seat (31), and the parallel light source (22) is located between the two conveying rollers (32) and is arranged perpendicular to the rod; the image processing member is electrically connected to the optical detection member (21) to receive the image of the optical detection member (21) and calculate the diameter of the rod in the image.

2. A diameter detection device for a bar according to claim 1, characterized in that: The optical detection component (21) is a CCD camera.

3. The diameter detection device for a bar according to claim 1, characterized in that: The optical detection component (21) is a COMS camera.

4. The diameter detection device for a bar according to claim 1, characterized in that: Each of the conveying rollers (32) is provided with a limiting groove (321) along the length direction of the connecting seat (31).

5. The diameter detection device for a bar according to claim 1, characterized in that: The conveying assembly (3) further comprises a reinforcing plate (34), wherein the reinforcing plate (34) is arranged on a side of the connecting seat (31) away from the parallel light source (22).

6. The diameter detection device for a bar according to claim 1, characterized in that: The mounting seat (1) includes a seat body (11) and a sliding platform (12), wherein the sliding platform (12) is slidably connected to the seat body (11) along the length direction of the seat body (11), and the optical detection component (21) is arranged on the sliding platform (12); the diameter detection device also includes an adjustment component (4), wherein the adjustment component (4) includes a servo motor (41) and a screw rod (42), wherein the servo motor (41) is arranged on the seat body (11), and the screw rod (42) is arranged on the servo motor (41) and is threadedly connected to the sliding platform (12).

7. The diameter detection device for a bar according to claim 6, characterized in that: The mounting seat (1) further comprises a slide rail (13) and a slider (14), wherein the slide rail (13) is provided on the seat body (11), the slider (14) is provided on the sliding platform (12), and the slider (14) is slidably connected to the slide rail (13).

8. The diameter detection device for a bar according to claim 6, characterized in that: The adjustment component (4) further comprises an origin switch sensor (43), and the origin switch sensor (43) is arranged on the seat (11).

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