Steel plate surface defect detection device

Abstract

The utility model discloses a steel plate surface defect detection device which comprises a base, the upper end of the base is fixedly connected with a first sliding rail, the first sliding rail is connected with a second sliding rail in a sliding mode, one side of the second sliding rail is connected with a threaded rod in a sliding mode, the lower end of the threaded rod is connected with a detection contact, and the detection contact is connected with a detection terminal through a data line. The threaded rod is connected with a limiting mechanism used for protecting the detection contact, the first sliding rail is connected with a first sliding block in a sliding mode, the first sliding block is fixedly connected to a second sliding rail, the joint of the first sliding block and the second sliding rail is connected with a fixing sleeve, and one end of the second sliding rail is rotationally connected with a handle. The distance between the detection contact and the steel plate can be controlled through the roller carrier, the roller carrier can dynamically ascend and descend along with the steel plate structure, collision between the detection contact and the steel plate is avoided, the effect of protecting the detection contact is achieved, meanwhile, the detection distance between the detection contact and the steel plate can be kept unchanged, and the detection stability is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel plate detection, in particular to a steel plate surface defect detection device. Background Technique

[0002] The detection of steel plate surface defects is a key link to ensure the quality of steel plates. Through technologies such as machine vision and laser scanning, defects such as holes, cracks, and scratches on the steel plate surface are identified and located. It can quickly and accurately detect defects, help enterprises adjust the production process in a timely manner, avoid defective products from flowing into the market, and improve the quality and production efficiency of steel plates.

[0003] When sampling and inspecting steel plates, it relies on the cooperation of detection equipment and manual operation. The detection personnel need to move the contact of the detection device on the steel plate. In order to reduce the friction between structures, a coupling agent needs to be added between the detection contact and the steel plate before detection, so that detection signals such as ultrasonic waves can be better transmitted between the contact and the steel plate, improving the detection accuracy. However, this method is only applicable to the flat surface of the steel plate. For the detection of irregular steel plates, the detection contact cannot move well on the steel plate surface, thus having a greater impact on the detection accuracy.

[0004] Based on this, a steel plate surface defect detection device is proposed. Content of the Utility Model

[0005] The purpose of the utility model is to propose a steel plate surface defect detection device in order to solve the above problems.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A steel plate surface defect detection device includes a base. A first slide rail is fixedly connected to the upper end of the base. A second slide rail is slidably connected to the first slide rail. A threaded rod is slidably connected to one side of the second slide rail. The lower end of the threaded rod is connected with a detection contact. The detection contact is connected to a detection terminal through a data line. A limiting mechanism for protecting the detection contact is connected to the threaded rod.

[0008] Preferably, a first slider is slidably connected to the first slide rail. The first slider is fixedly connected to the second slide rail. A fixing sleeve is connected to the connection part of the first slider and the second slide rail.

[0009] Preferably, a handle is rotatably connected to one end of the second slide rail.

[0010] Preferably, a second slider is slidably connected to the second slide rail. The threaded rod is slidably connected to the second slider.

[0011] Preferably, the limiting mechanism includes a roller frame, which is rotatably connected to an abutment roller. The roller frame is connected to a nut via a fixed frame, and the nut is threadedly connected to a threaded rod. An abutment spring is connected between the roller frame and the second slider, and a rotating bar is connected to the upper end of the threaded rod.

[0012] Preferably, one side of the second slide block is connected to a hinge frame, a clamping strip is rotatably connected to the hinge frame, and a shift plate is connected to the second slide rail.

[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0014] 1. The present application adopts a roller frame structure, which can control the distance between the detection contact and the steel plate, and can be dynamically raised and lowered along with the steel plate structure to avoid collision between the detection contact and the steel plate, thereby protecting the detection contact. At the same time, the detection contact can maintain a constant detection distance with the steel plate, further improving the stability of detection.

[0015] 2. The present application adopts a card strip structure and utilizes the cooperation between the card strip and the shift plate to enable the detection contact to move in a straight line during detection. The detection range can be changed by moving the card strip position. Equidistantly moving the detection contacts can improve the accuracy of the detection of the detection contacts and avoid missed detection problems. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic structural diagram of a steel plate defect detection device provided according to an embodiment of the utility model is shown;

[0017] Figure 2 A schematic diagram of the structure of the connection of the card strip provided according to an embodiment of the utility model is shown;

[0018] Figure 3 A schematic structural diagram of an abutment spring connection provided according to an embodiment of the utility model is shown.

[0019] Legend:

[0020] 1. Base; 2. Slide rail 1; 3. Slider 1; 4. Slide rail 2; 5. Fixed sleeve; 6. Handle; 7. Shift plate; 8. Slider 2; 9. Roller frame; 10. Abutting roller; 11. Articulated frame; 12. Clip strip; 13. Nut; 14. Fixed frame; 15. Threaded rod; 16. Detection contact; 17. Rotating strip; 18. Abutting spring. DETAILED DESCRIPTION

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] Please refer to Figures 1 - 3 , the present invention provides a technical solution:

[0023] A steel plate surface defect detection device includes a base 1. A first slide rail 2 is fixedly connected to the upper end of the base 1. The first slide rail 2 is arranged on one side of the upper end of the base 1. A second slide rail 4 is slidably connected to the first slide rail 2. A threaded rod 15 is slidably connected to one side of the second slide rail 4. The threaded rod 15 is vertically arranged. A detection contact 16 is connected to the lower end of the threaded rod 15. The detection contact 16 is connected to a detection terminal through a data cable. During detection, it is necessary to turn on the detection terminal, rely on the detection contact 16 to emit an ultrasonic detection signal, and rely on the detection contact 16 to receive the detection signal, so as to transmit it to the detection terminal, thereby understanding the surface defect problem of the steel plate. A limiting mechanism for protecting the detection contact 16 is connected to the threaded rod 15.

[0024] Specifically, as Figure 1 shown, a first slider 3 is slidably connected to the first slide rail 2. The first slider 3 is fixedly connected to the second slide rail 4. A fixed sleeve 5 is connected to the connection between the first slider 3 and the second slide rail 4. By setting the first slider 3, the stability of the second slide rail 4 sliding on the first slide rail 2 is improved.

[0025] Specifically, as Figure 2 and Figure 3 shown, a handle 6 is rotatably connected to one end of the second slide rail 4. The handle 6 can be rotated, that is, when pushing the second slide rail 4 to move, the handle 6 can be placed on one side or above the second slide rail 4, improving the convenience of operation for the detection personnel.

[0026] Specifically, as Figure 2 and Figure 3 shown, a second slider 8 is slidably connected to the second slide rail 4. The threaded rod 15 is slidably connected to the second slider 8, that is, the second slider 8 is sleeved outside the threaded rod 15.

[0027] Specifically, as Figure 2 and Figure 3As shown, the limiting mechanism includes a roller frame 9, on which a contact roller 10 is rotatably connected. During the detection process, the contact roller 10 makes rolling contact with the upper surface of the steel plate. The roller frame 9 is connected with a nut 13 through a fixing frame 14, and the nut 13 is threadedly connected to a threaded rod 15. When the threaded rod 15 is rotated, the position of the nut 13 connected to the threaded rod 15 can be changed. A contact spring 18 is connected between the roller frame 9 and the second slider 8, and the contact spring 18 has the effect of pulling the contact roller 10 into contact with the surface of the steel plate. Therefore, when placing the steel plate to be tested, it is necessary to pull up the threaded rod 15. The upper end of the threaded rod 15 is connected with a rotating bar 17, and the structure of the rotating bar 17 is arranged to facilitate the operator to rotate the threaded rod 15;

[0028] The roller frame 9 is slidably connected to one side of the second slider 8. A groove for the roller frame 9 to slide up and down is provided on one side of the second slider 8, and this structure can also prevent the structure of the roller frame 9 from rotating.

[0029] Specifically, as Figure 2 and Figure 3 shown, one side of the second slider 8 is connected with a hinge frame 11, on which a clamping bar 12 is rotatably connected. A gear piece 7 is connected to the second slide rail 4, and multiple groups of gear pieces 7 are provided. The position of the clamping bar 12 can be limited by relying on the gear piece 7.

[0030] In summary, for a steel plate surface defect detection device provided in this embodiment, when it is necessary to detect the surface defects of the steel plate, place the steel plate on the base 1, apply a coupling agent on the surface of the steel plate, and then move the second slider 8 so that the detection contact 16 can start detecting from one side edge of the steel plate, and snap the clamping bar 12 between the corresponding gear pieces 7. Then the operator can hold the handle 6 and push the first slider 3 to move along the first slide rail 2, and use the detection contact 16 to move on the upper surface of the steel plate, and complete the detection of the steel plate surface through the detection terminal connected to the detection contact 16.

[0031] When encountering a steel plate with an uneven surface, the roller frame 9 can drive the detection contact 16 to move, avoiding collision between the detection contact 16 and the steel plate. The distance between the detection contact 16 and the steel plate can also be adjusted. Just rotate the rotating bar 17, thereby changing the distance between the bottom end of the detection contact 16 and the contact roller 10. After the detection is completed, the clamping position of the clamping bar 12 can also be changed, so as to detect the defects at different positions on the steel plate.

[0032] The foregoing description of the embodiments enables those skilled in the art to implement or use the present utility model. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to the embodiments shown herein, but rather to the broadest scope consistent with the principles and novel features disclosed herein.

Claims

1. A steel plate surface defect detection device, comprising a base (1), characterized in that: The upper end of the base (1) is fixedly connected to a slide rail 1 (2), the slide rail 1 (2) is slidably connected to a slide rail 2 (4), one side of the slide rail 2 (4) is slidably connected to a threaded rod (15), the lower end of the threaded rod (15) is connected to a detection contact (16), the detection contact (16) is connected to a detection terminal via a data line, and the threaded rod (15) is connected to a limit mechanism for protecting the detection contact (16).

2. A steel plate surface defect detection device according to claim 1, characterized in that: The slide rail 1 (2) is slidably connected with a slider 1 (3), the slider 1 (3) is fixedly connected to the slide rail 2 (4), and a fixing sleeve (5) is connected at the connection between the slider 1 (3) and the slide rail 2 (4).

3. A steel plate surface defect detection device according to claim 1, characterized in that: One end of the second slide rail (4) is rotatably connected to a handle (6).

4. The steel plate surface defect detection device according to claim 1, characterized in that: The second slide rail (4) is slidably connected to a second slide block (8), and the threaded rod (15) is slidably connected to the second slide block (8).

5. The steel plate surface defect detection device according to claim 1, characterized in that: The limiting mechanism comprises a roller frame (9), an abutting roller (10) is rotatably connected to the roller frame (9), the roller frame (9) is connected to a nut (13) via a fixing frame (14), the nut (13) is threadedly connected to a threaded rod (15), an abutting spring (18) is connected between the roller frame (9) and the second slider (8), and the upper end of the threaded rod (15) is connected to a rotating bar (17).

6. A steel plate surface defect detection device according to claim 5, characterized in that: One side of the second slide block (8) is connected to an articulated frame (11), a clamping strip (12) is rotatably connected to the articulated frame (11), and a shift plate (7) is connected to the second slide rail (4).

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