A surface defect detection tool for laminated steel sheets

Abstract

The utility model relates to laminated steel plate detection technical field, especially disclose a kind of laminated steel plate surface defect detection tool, including measuring platform, the upper surface of measuring platform is equipped with defect detection tool body, fixed mechanism includes screw rod, threaded sleeve, pressing plate and protective pad, two handles are fixedly installed outside threaded sleeve, laminated steel plate is placed on measuring platform, alignment detection area, reverse rotation threaded sleeve, drive pressing plate to descend, when the protective pad of pressing plate bottom is completely contacted with steel plate surface, stop rotating, protective pad is evenly pressed on steel plate surface by elastic deformation at this time, to fix laminated steel plate, since laminated steel plate is fixed in the detection process, even if body accidentally touches laminated steel plate in the operation process, laminated steel plate will not be displaced due to external force to make stylus detection position deviate from preset area, to guarantee the accuracy of roughness parameter acquisition.

Description

Technical Field

[0001] This utility model relates to the field of laminated steel plate testing technology, and in particular to a tool for detecting surface defects in laminated steel plates. Background Technology

[0002] Laminated steel sheet surface defect inspection tools are instruments or equipment used to inspect various defects (such as cracks, scratches, dents, rust, holes, coating peeling, etc.) on the surface of laminated steel sheets. Benchtop roughness testing instruments are one of the commonly used tools, mainly used for accurately measuring surface roughness parameters, and have the following structure: 1. Measuring platform: This is the basic component for placing the workpiece being measured; 2. Column: Install the drive and sensor components, and adjust the height of the drive and sensor components simultaneously; 3. Drive and sensor components: Generally includes stylus sensors. The stylus will contact the surface of the workpiece being measured to sense micro-undulations. At the same time, the drive mechanism drives the stylus to move along the surface of the workpiece, converting the changes in the surface micro-geometry into electrical signals. 4. Electrical control and data processing section: Processes the weak electrical signals from the sensors, converts them into digital signals, and then calculates the roughness parameters through built-in algorithms.

[0003] During the testing process, the laminated steel plate needs to be placed on the measuring platform, and then the test stylus is moved to make contact with the laminated steel plate. Since the operator needs to control the movement of the stylus during the testing of the laminated steel plate, the operator's body is close to the testing equipment. During the operation, the operator's limbs are prone to accidentally touching the laminated steel plate, causing the steel plate to shift due to external force, causing the stylus detection position to deviate from the preset area, resulting in a deviation in the roughness parameter acquisition. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a surface defect detection tool for laminated steel plates. It solves the technical problem that during the detection of laminated steel plates, the operator needs to control the movement of the stylus, which means that the operator's body is close to the detection tool and their limbs are prone to accidentally touching the laminated steel plate during operation. This causes the steel plate to shift due to external force, resulting in the stylus detection position deviating from the preset area and causing the roughness parameter acquisition deviation.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A surface defect detection tool for laminated steel sheets includes a measuring platform. The defect detection tool body is mounted on the upper surface of the measuring platform. A fixing mechanism for fixing the laminated steel sheet is provided on the outside of the measuring platform. The fixing mechanism includes a screw, a threaded sleeve, a pressure plate, and a protective pad. The screw is located outside the measuring platform. The pressure plate is slidably connected to the outside of the threaded sleeve and is used to fix the laminated steel sheet. The protective pad is fixedly installed on the side of the pressure plate near the measuring platform. The threaded sleeve is threadedly connected to the outside of the screw and is used to fix the pressure plate. Two handles are fixedly installed on the outside of the threaded sleeve.

[0006] Preferably, the measuring platform has a mounting hole on one side corresponding to the screw, the screw is slidably connected inside the mounting hole, the lower surface of the measuring platform has a limit groove, the end of the screw is engaged inside the limit groove and used to limit the rotation of the screw, which is a structure for assembling and disassembling the screw.

[0007] Preferably, the limiting groove is provided with a baffle to limit the movement of the screw, and the measuring platform has an installation groove on one side corresponding to the limiting groove. The baffle is slidably connected to the installation groove and the limiting groove.

[0008] Preferably, the baffle is provided with a limiting spring for restricting the movement of the baffle, the baffle is provided with a deformation groove on the outside, and a groove is provided on the lower surface of the baffle. One end of the limiting spring is fixedly connected to the inside of the deformation groove, which increases the stability of the connection between the baffle and the mounting groove.

[0009] Preferably, a mounting bracket is fixedly installed on the side of the measuring platform near the screw, and a limit plate is slidably connected to the inner side of the mounting bracket. The limit plate is fixedly installed on the outside of the pressure plate and is used to limit the rotation of the pressure plate.

[0010] Compared with the prior art, the present invention has the following beneficial effects: 1. Place the laminated steel plate on the measuring platform, align it with the detection area, and rotate the threaded sleeve in the opposite direction to drive the pressure plate to descend. When the protective pad at the bottom of the pressure plate is in complete contact with the surface of the steel plate, stop rotating. At this time, the protective pad will evenly press against the surface of the steel plate through elastic deformation, thereby fixing the laminated steel plate. Since the laminated steel plate is fixed during the detection process, even if a limb accidentally touches the laminated steel plate during the operation, the laminated steel plate will not be displaced due to external force, causing the stylus detection position to deviate from the preset area, thus ensuring the accuracy of roughness parameter acquisition.

[0011] 2. When using the fixing mechanism, the screw is installed on the measuring platform through the limiting groove and the mounting hole, and then the baffle is raised for fixing. After that, the pressure plate and the threaded sleeve can be installed on the outside of the screw. The fixing mechanism consists of multiple detachable structures, which facilitates the assembly and disassembly of the fixing mechanism according to the actual situation and improves the flexibility of the fixing mechanism. Attached Figure Description

[0012] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This utility model Figure 1 A bottom-view structural diagram of the central measurement platform; Figure 3 This utility model Figure 2 Exploded view of the measurement platform; Figure 4 This utility model Figure 3 Structural diagram of the middle baffle.

[0014] Legend: 1. Measuring platform; 2. Screw; 3. Threaded sleeve; 4. Pressure plate; 5. Protective pad; 6. Mounting hole; 7. Limiting groove; 8. Baffle; 9. Mounting groove; 10. Limiting spring; 11. Deformation groove; 12. Mounting bracket; 13. Limiting plate; 14. Defect detection tool body; 15. Handle; 16. Groove. Detailed Implementation

[0015] This application provides a surface defect detection tool for laminated steel plates, which effectively solves the technical problem that when inspecting laminated steel plates, the operator needs to control the movement of the stylus. As a result, the operator's body is close to the detection tool, and the operator's limbs are prone to accidentally touching the laminated steel plate during operation. This causes the steel plate to shift due to external force, causing the stylus detection position to deviate from the preset area and resulting in deviations in the roughness parameter acquisition.

[0016] Example like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the technical solution in this application embodiment effectively solves the technical problem that when inspecting laminated steel plates, the operator needs to control the movement of the stylus. Therefore, the operator's body is close to the inspection tool, and during the operation, the limbs are prone to accidentally touching the laminated steel plate, causing the steel plate to shift due to external force. This causes the stylus detection position to deviate from the preset area, resulting in a deviation in the roughness parameter acquisition. The overall idea is as follows: To address the problems existing in the prior art, this utility model provides a surface defect detection tool for laminated steel plates, including a measuring platform 1. A defect detection tool body 14 is installed on the upper surface of the measuring platform 1. A fixing mechanism for fixing the laminated steel plate is provided on the outside of the measuring platform 1. The fixing mechanism includes a screw 2, a threaded sleeve 3, a pressure plate 4, and a protective pad 5. The screw 2 is located on the outside of the measuring platform 1. The pressure plate 4 is slidably connected to the outside of the threaded sleeve 3 and is used to fix the laminated steel plate. The pressure plate 4 is L-shaped. The protective pad 5 is fixedly installed on the side of the pressure plate 4 near the measuring platform 1. The protective pad 5 is made of rubber or silicone and is L-shaped. The threaded sleeve 3 is threadedly connected to the outside of the screw 2 and is used to fix the pressure plate 4. Two handles 15 are fixedly installed on the outside of the threaded sleeve 3.

[0017] The screw 2 is engaged with the threaded sleeve 3. Rotating the threaded sleeve 3 can drive the pressure plate 4 to slide up and down along the threaded sleeve 3, thereby adjusting the distance between the pressure plate 4 and the measuring platform 1 to accommodate laminated steel plates of different thicknesses. The protective pad 5 at the bottom of the pressure plate 4 can prevent the pressure plate 4 from directly contacting the surface of the steel plate and prevent indentations or scratches.

[0018] The measuring platform 1 has a mounting hole 6 on one side corresponding to the screw 2. The screw 2 is slidably connected inside the mounting hole 6. A limiting groove 7 is provided on the lower surface of the measuring platform 1. The limiting groove 7 communicates with the interior of the mounting hole 6. The end of the screw 2 is engaged inside the limiting groove 7 and is used to limit the rotation of the screw 2. When the fixing mechanism is used, the screw 2 passes through the limiting groove 7 and the mounting hole 6 to reach the upper surface of the measuring platform 1. At this time, the end of the screw 2 is located inside the limiting groove 7. The screw 2 is detachable for easy replacement.

[0019] The limiting groove 7 is provided with a baffle 8 for limiting the movement of the screw 2. The measuring platform 1 has an installation groove 9 on the side corresponding to the limiting groove 7. The baffle 8 is slidably connected to the installation groove 9 and the limiting groove 7. After the screw 2 is installed, the baffle 8 is inserted into the limiting groove 7 through the installation groove 9 to limit the movement of the screw 2.

[0020] The baffle 8 is provided with a limiting spring 10 for restricting the movement of the baffle 8. The baffle 8 is provided with a deformation groove 11. One end of the limiting spring 10 is fixedly connected to the inside of the deformation groove 11, and the other end extends outward. The lower surface of the baffle 8 is provided with a groove 16. When the baffle 8 is inserted into the inside of the limiting groove 7, the outward end of the limiting spring 10 moves into the inside of the deformation groove 11 and fits against the inner wall of the mounting groove 9, increasing the stability of the connection between the baffle 8 and the mounting groove 9.

[0021] A mounting bracket 12 is fixedly installed on the side of the measuring platform 1 near the screw 2. The mounting bracket 12 is a concave body with both ends installed on the outside of the measuring platform 1. A limiting plate 13 is slidably connected to the inner side of the mounting bracket 12. The limiting plate 13 is fixedly installed on the outside of the pressure plate 4 and is used to limit the rotation of the pressure plate 4. The pressure plate 4 is slidably connected to the inner side of the mounting bracket 12 through the outer limiting plate 13, which limits the rotation of the pressure plate 4 and ensures that the pressure plate 4 remains horizontal during the descent process and applies pressure evenly to the surface of the steel plate.

[0022] Working principle: The first step is to place the laminated steel plate on the measuring platform 1, align it with the detection area, rotate the threaded sleeve 3 in the opposite direction, drive the pressure plate 4 to descend until the protective pad 5 contacts the surface of the steel plate, at which point the laminated steel plate is fixed. At this time, the surface of the steel plate is scanned by the probe of the roughness tester of the external testing equipment. The probe will contact the surface of the workpiece being tested, sense the micro-undulations, and at the same time, the drive mechanism drives the probe to move along the surface of the workpiece, converting the changes in the surface micro-geometry into electrical signals, and finally displaying the values ​​on the display panel. After the test is completed, rotate the threaded sleeve 3 to move the threaded sleeve 3 away from the pressure plate 4, and then remove the steel plate. The second step is to rotate the threaded sleeve 3 to disengage it from the screw 2 when the fixing mechanism is not needed. Then, push the baffle 8 to disengage it from the limiting groove 7. Then, push the screw 2 to disengage it from the mounting hole 6 and the limiting groove 7. At this time, the screw 2 is disassembled.

[0023] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A surface defect detection tool for laminated steel sheets, comprising a measuring platform (1), wherein a defect detection tool body (14) is mounted on the upper surface of the measuring platform (1), characterized in that, The measuring platform (1) is provided with a fixing mechanism for fixing the laminated steel plate. The fixing mechanism includes a screw (2), a threaded sleeve (3), a pressure plate (4), and a protective pad (5). The screw (2) is set outside the measuring platform (1), the pressure plate (4) is slidably connected to the outside of the threaded sleeve (3) and used to fix the laminated steel plate, the protective pad (5) is fixedly installed on the side of the pressure plate (4) close to the measuring platform (1), and the threaded sleeve (3) is threadedly connected to the outside of the screw (2) and used to fix the pressure plate (4). The threaded sleeve (3) has two handles (15) fixedly installed on its exterior.

2. The surface defect detection tool for laminated steel sheets as described in claim 1, characterized in that, The measuring platform (1) has a mounting hole (6) on one side corresponding to the screw (2); The screw (2) is slidably connected inside the mounting hole (6).

3. The surface defect detection tool for laminated steel sheets as described in claim 1, characterized in that, A limiting groove (7) is provided on the lower surface of the measuring platform (1). The end of the screw (2) is engaged inside the limiting groove (7) and is used to limit the rotation of the screw (2).

4. The surface defect detection tool for laminated steel sheets as described in claim 3, characterized in that, The limiting groove (7) is provided with a baffle (8) for limiting the movement of the screw (2).

5. The surface defect detection tool for laminated steel sheets as described in claim 3, characterized in that, The measuring platform (1) has an installation groove (9) on one side corresponding to the limiting groove (7); The baffle (8) is slidably connected inside the mounting groove (9) and the limiting groove (7).

6. The surface defect detection tool for laminated steel sheets as described in claim 4, characterized in that, The baffle (8) is provided with a limiting spring (10) on its outside for restricting the movement of the baffle (8).

7. The surface defect detection tool for laminated steel sheets as described in claim 4, characterized in that, The baffle (8) has a deformation groove (11) on its outer surface and a groove (16) on its lower surface. One end of the limiting spring (10) is fixedly connected to the inside of the deformation groove (11).

8. The surface defect detection tool for laminated steel sheets as described in claim 1, characterized in that, The measuring platform (1) is fixedly mounted with a mounting bracket (12) on the side near the screw (2), and a limit plate (13) is slidably connected to the inner side of the mounting bracket (12). The limiting plate (13) is fixedly installed on the outside of the pressure plate (4) and is used to limit the rotation of the pressure plate (4).

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