Defect marking device for round steel detection

By designing an automated round steel inspection device, comprehensive inspection and accurate marking of the round steel surface are achieved, solving the problems of unclear and incomplete marking in existing technologies, and improving inspection efficiency and marking quality.

CN224682082UActive Publication Date: 2026-08-25JIANGYOU HONGXIANG SPECIAL STEEL CO LTD
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Patent Information

Application Number
CN202522103836.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-29
Publication Date
2026-08-25
Estimated Expiration
2035-09-29

AI Technical Summary

Technical Problem

In the current round steel inspection, the defect markings are unclear and incomplete, which affects the subsequent grinding process.

Method used

A defect marking device for round steel inspection was designed. By rotating the clamping parts and moving the defect marking components, combined with the automated operation of the ultraviolet lamp and marking pen, a comprehensive inspection and accurate marking of the round steel surface can be achieved.

Benefits of technology

It improves the accuracy and efficiency of defect marking, reduces operational steps, and ensures consistency between marking and inspection results.

✦ Generated by Eureka AI based on patent content.

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Abstract

This application provides a defect marking device for round steel inspection, comprising: an operating table; a fixing assembly including two fixed seats, on which clamping members are rotatably mounted, one of which is driven to rotate by a first motor; the defect marking assembly including a T-shaped plate, two L-shaped plates, a control plate, and a pressure plate; the T-shaped plate has corresponding T-slots; ultraviolet lamps and marking pens are respectively mounted on the top of the vertical sections of the two L-shaped plates; the horizontal sections of the two L-shaped plates are respectively moved and pass through the two ends of the horizontal sections of the T-slots; the control plate is installed at the end of the vertical section of the T-shaped plate; the control plate is connected to the first motor via wires; and the pressure plate is moved and passes through the vertical section of the T-slots. In this application, the round steel automatically rotates during inspection and marking, avoiding unclear or incomplete marking. Furthermore, after inspection, there is no need to adjust the position of the marking pen along the length of the operating table to achieve correspondence between defects and markings, thus improving marking quality.
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Description

Technical Field

[0001] This application relates to the field of round steel inspection technology, and in particular to a defect marking device for round steel inspection. Background Technology

[0002] Round steel is a common type of steel, and after processing, it requires flaw detection to ensure the surface quality of the products. Currently, magnetic particle testing is commonly used for defect detection in round steel. This involves irradiating the round steel workpiece coated with a magnetic suspension solution with an ultraviolet lamp, then observing the fluorescent patterns on the surface to identify and locate defects. Finally, the defects are marked to facilitate subsequent grinding. Marking the inspected round steel is a crucial step; unclear, incomplete, or inaccurate markings can hinder subsequent grinding processes. Utility Model Content

[0003] To address the shortcomings of the existing technology, this application provides a defect marking device for round steel inspection. During inspection and marking, the round steel automatically rotates, avoiding unclear or incomplete markings. Furthermore, after inspection, no adjustment of the marking pen's position along the length of the worktable is required to achieve a correspondence between defects and markings, thus improving marking quality.

[0004] To achieve the above objectives, the present invention employs the following technology: A defect marking device for inspecting round steel bars, comprising: Control panel; A fixing component, located on the operating table, includes two fixing seats, on which clamping components are rotatably mounted relative to each other. The axes of the clamping components are arranged parallel to the length direction of the operating table, and one of the clamping components is driven to rotate by a first motor. The defect marking assembly, movable along the length of the workbench, includes a T-shaped plate, two L-shaped plates, a control plate, and a pressure plate located below the workbench. The T-shaped plate has a corresponding T-slot. The top of the vertical sections of the two L-shaped plates are respectively equipped with an ultraviolet lamp and a marking pen. The horizontal sections of the two L-shaped plates move along the width of the workbench and pass through both ends of the horizontal sections of the T-slot. The control plate is installed at the end of the vertical section of the T-shaped plate and is connected to a first motor via a wire. The pressure plate moves and passes through the vertical section of the T-slot. A first spring is provided between the pressure plate and the end of the vertical section of the T-slot. The pressure plate is used to press the control button on the control plate to control the start and stop of the first motor. The two opposite corners of the pressure plate away from the control plate are chamfered and are used to slide and engage with a chamfer at the end of the horizontal section of the two L-shaped plates.

[0005] The beneficial effects of this utility model are as follows: 1. The movement of the defect marking component and the rotation of the clamping parts enable comprehensive inspection and marking of the round steel surface; 2. Through the sliding fit between the L-shaped plate and the pressure plate, when the ultraviolet lamp performs detection work and the marking pen performs marking work, the clamping part can drive the round steel to start rotating automatically; 3. The UV lamp and marking pen are set up to correspond on the two L-shaped plates. After the UV lamp detects a defect, the marking pen on the opposite side can be used to mark it directly without secondary positioning, reducing complicated steps. Attached Figure Description

[0006] The accompanying drawings described herein are merely illustrative of selected embodiments, not all possible implementations, and are not intended to limit the scope of this invention.

[0007] Figure 1 This is a perspective view of the overall structure of an embodiment of this application.

[0008] Figure 2 This is a schematic diagram of the bottom structure of an embodiment of this application.

[0009] Figure 3 This is a schematic diagram of the defect marking component in an embodiment of this application.

[0010] Figure 4 This is a cross-sectional view of the defect marking component in an embodiment of this application. Figure 1 .

[0011] Figure 5 This is a cross-sectional view of the defect marking component in an embodiment of this application. Figure 2 . Detailed Implementation

[0012] To make the objectives, technical solutions and advantages of the present utility model clearer, the implementation methods of the present utility model will be described in detail below with reference to the accompanying drawings. However, the embodiments described in the present utility model are only some embodiments of the present utility model, and not all embodiments.

[0013] This application provides a defect marking device for inspecting round steel bars, such as... Figures 1-5 As shown, it includes an operating table 1, a fixing component, and a defect marking component 4.

[0014] The fixing component is located on the operating table 1. The fixing component includes two fixing seats 2. Clamping parts 3 are rotatably mounted on the two fixing seats 2. The axis of the clamping parts 3 is parallel to the length direction of the operating table 1. One of the clamping parts 3 is driven to rotate by a first motor.

[0015] The defect marking assembly 4 is movable along the length of the operating table 1. The defect marking assembly 4 includes a T-shaped plate 41, two L-shaped plates 42, a control plate 43, and a pressure plate 44 located below the operating table 1. The T-shaped plate 41 has corresponding T-slots. Ultraviolet lamps 46 and marking pens 47 are respectively mounted on the top vertical sections of the two L-shaped plates 42. The axes of the ultraviolet lamps 46 and marking pens 47 coincide and are parallel to the width direction of the operating table 1. The detection side of the ultraviolet lamp 46 and the marking side of the marking pen 47 both face the clamping member 3. To ensure the stability of the detection and marking process, the ultraviolet lamp 46, marking pen 47, and clamping member 3 should be aligned. The axes of parts 3 are kept at the same height. The horizontal parts of the two L-shaped plates 42 move along the width direction of the operating table 1 and pass through the two ends of the horizontal part of the T-shaped groove. The control plate 43 is installed at the end of the vertical part of the T-shaped plate 41. The control plate 43 is connected to the first motor through a wire. The pressure plate 44 moves and passes through the vertical part of the T-shaped groove. A first spring 45 is provided between the pressure plate 44 and the end of the vertical part of the T-shaped groove. The pressure plate 44 is used to press the control button on the control plate 43 to control the start and stop of the first motor. The two opposite corners of the end of the pressure plate 44 away from the control plate 43 are chamfered, which are used to slide and cooperate with the chamfer at the end of the horizontal part of the two L-shaped plates 42 respectively.

[0016] In application, the two ends of the round steel are first clamped using two clamping pieces 3 to fix the round steel. The defect marking component 4 is moved manually or mechanically to the inspection location. Then, the L-shaped plate 42, equipped with a UV lamp 46, is moved inward manually or mechanically. Through the sliding engagement between the corresponding chamfer and the chamfer of the pressure plate 44, the pressure plate 44 moves towards the control plate 43 and presses the control button on the control plate 43, causing the first motor to start and drive the clamping pieces 3 to rotate, thereby rotating the round steel. At this time, the UV lamp 46 can be used to inspect the circumference of the round steel at the inspection location. After the inspection is completed, the L-shaped plate 42 equipped with the UV lamp 46 is moved outward manually or mechanically. The pressure plate 44 also automatically resets under the action of the first spring 45, releasing the pressure on the control button on the control plate 43, and the first motor is turned off.

[0017] The test results are obtained through sensor detection or direct observation by the operator. If the test results show no defects, the defect marking component 4 can be moved to the next test location manually or mechanically. If the test results show defects, the L-shaped plate 42 with the marking pen 47 installed needs to be moved inward by manual or mechanical means. Through the sliding cooperation between the corresponding chamfer and the chamfer of the pressure plate 44, the pressure plate 44 is moved toward the control plate 43 and squeezes the control button on the control plate 43, causing the first motor to start and drive the clamping part 3 to rotate, thereby driving the round steel to rotate. At this time, the marking pen 47 can be used to mark the circumference of the round steel where the defect is displayed, so that the defect can be polished later.

[0018] When using the ultraviolet lamp 46 to inspect the area to be inspected on the round steel, the ultraviolet lamp 46 needs to be kept at a certain distance from the round steel in order to observe the inspection results; when using the marking pen 47 to mark the defect on the round steel, the marking pen 47 needs to be in contact with the outer wall of the round steel in order to mark it.

[0019] Specifically, such as Figure 1 and Figure 2 As shown, the first motor is mounted on one of the fixed bases 2, which is fixed at one end of the operating table 1, and is used to drive the rotation of the corresponding clamping member 3. The other fixed base 2 is movable along the length of the operating table 1. More specifically, the bottom of the other fixed base 2 is slidably mounted on a guide rod, which is installed inside a slide groove, which is opened on the upper surface of the operating table 1. To make the clamping effect of the two clamping members 3 more stable, the guide rod can be replaced with a screw, and the position of the other fixed base 2 can be adjusted by rotating the screw to accommodate round steel of different lengths.

[0020] Specifically, such as Figure 1 and Figure 2 As shown, the clamping member 3 includes a turntable 31 and two V-shaped plates 32 that move radially relative to each other along the turntable 31. The two V-shaped plates 32 are respectively threaded through both ends of a double-ended screw 33. The double-ended screw 33 is rotatably mounted on a first mounting base formed by extending from the turntable 31, and one end of the double-ended screw 33 passes through the first mounting base and is connected to a cap. Rotating the double-ended screw 33 can adjust the distance between the two V-shaped plates 32 to accommodate round steel of different diameters while keeping the round steel aligned with the axis of the clamping member 3.

[0021] Specifically, such as Figure 3 and Figure 5 As shown, both ends of the horizontal part of the T-shaped plate 41 extend outward to form guide rods 48, and the vertical parts of the L-shaped plate 42 are all inserted through the corresponding guide rods 48. The guide rods 48 are all sleeved with second springs 49. The second springs 49 are located between the T-shaped plate 41 and the corresponding L-shaped plate 42. If the movement of the L-shaped plate 42 is manually driven, the L-shaped plate 42 can be automatically reset after the detection or marking is completed.

[0022] Since the L-shaped plate 42 can only move a fixed distance inward each time, the UV lamp 46 and the marking pen 47 need to have a certain amount of flexibility to be applicable to round steel bars of different diameters. Specifically, such as... Figure 3 and Figure 4 As shown, the top of the vertical part of the L-shaped plate 42 extends inward to form a placement seat 421. A cavity is opened inside the placement seat 421. The outer ends of the ultraviolet lamp 46 and the marker pen 47 are provided with limiting posts. The limiting posts slide through the corresponding cavity along the width direction of the operating table 1, and the inner ends of the ultraviolet lamp 46 and the marker pen 47 protrude through the inner side of the corresponding placement seat 421.

[0023] The UV lamp 46 only needs to be kept at a certain distance from the round steel to ensure easy detection and observation. Therefore, adjusting the extension / retraction of the UV lamp 47 only requires adjusting the sliding fit between the limiting post and the cavity. However, the marking pen 47 needs to be in contact with the outer wall of the round steel to ensure proper marking. Therefore, more specifically, such as Figure 4 As shown, a third spring 422 is connected between the limiting post corresponding to the marker pen 47 and the outer end of the corresponding cavity.

[0024] Specifically, such as Figure 2 As shown, the T-shaped plate 41 is threaded through a lead screw 5 arranged along the length of the operating table 1. The lead screw 5 is driven to rotate by a second motor, and both the lead screw 5 and the second motor are mounted on a second mounting base formed by extending downward from the operating table 1.

[0025] In application, the above description is only a preferred embodiment of this application and is not intended to limit this application. Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application.

Claims

1. A defect marking device for inspecting round steel bars, characterized in that, include: Control panel (1); The fixing component is located on the operating table (1) and includes two fixing seats (2). Clamping parts (3) are rotatably mounted on the two fixing seats (2). The axis of the clamping parts (3) is parallel to the length direction of the operating table (1). One of the clamping parts (3) is driven to rotate by a first motor. The defect marking assembly (4) is movable along the length of the workbench (1) and includes a T-shaped plate (41), two L-shaped plates (42), a control plate (43), and a pressure plate (44) located below the workbench (1). The T-shaped plate (41) has a T-shaped groove. The top of the vertical part of the two L-shaped plates (42) is respectively equipped with an ultraviolet lamp (46) and a marking pen (47). The horizontal parts of the two L-shaped plates (42) are respectively moved along the width of the workbench (1) and pass through the two ends of the horizontal part of the T-shaped groove. The control plate (43) Installed at the vertical end of the T-shaped plate (41), the control plate (43) is connected to the first motor via wires. The pressure plate (44) moves through the vertical part of the T-shaped groove. A first spring (45) is provided between the pressure plate (44) and the vertical end of the T-shaped groove. The pressure plate (44) is used to press the control button on the control plate (43) to control the start and stop of the first motor. The two opposite corners of the pressure plate (44) away from the control plate (43) are chamfered, which are used to slide and cooperate with the chamfer at the horizontal end of the two L-shaped plates (42).

2. The defect marking device for round steel inspection according to claim 1, characterized in that, One of the fixed seats (2) is fixedly installed at one end of the operating table (1), and the other fixed seat (2) is moved along the length of the operating table (1).

3. The defect marking device for round steel inspection according to claim 1, characterized in that, The clamping component (3) includes a turntable (31) and two V-shaped plates (32) that move radially relative to each other along the turntable (31). The two V-shaped plates (32) are threaded through both ends of a double-ended screw (33). The double-ended screw (33) is rotatably mounted on a first mounting base formed by extending from the turntable (31), and one end of the double-ended screw (33) passes through the first mounting base and is connected to a cap.

4. The defect marking device for round steel inspection according to claim 1, characterized in that, The horizontal ends of the T-shaped plate (41) extend outward to form guide rods (48), and the vertical parts of the L-shaped plate (42) are all inserted on the corresponding guide rods (48). The guide rods (48) are all fitted with second springs (49) around their periphery. The second springs (49) are located between the T-shaped plate (41) and the corresponding L-shaped plate (42).

5. A defect marking device for round steel inspection according to claim 1, characterized in that, The top of the vertical part of the L-shaped plate (42) extends inward to form a placement seat (421). The placement seat (421) has a cavity inside. The outer ends of the ultraviolet lamp (46) and the marker pen (47) are provided with limiting posts. The limiting posts slide through the corresponding cavity along the width direction of the operating table (1), and the inner ends of the ultraviolet lamp (46) and the marker pen (47) protrude through the inner side of the corresponding placement seat (421).

6. A defect marking device for round steel inspection according to claim 5, characterized in that, A third spring (422) is connected between the limiting post corresponding to the marker pen (47) and the outer end of the corresponding cavity.

7. A defect marking device for round steel inspection according to claim 1, characterized in that, The T-shaped plate (41) is threaded onto a lead screw (5) arranged along the length of the operating table (1). The lead screw (5) is driven to rotate by a second motor, and both the lead screw (5) and the second motor are mounted on a second mounting base formed by extending downward from the operating table (1).