PC steel bar surface flaw detection device

Abstract

The utility model belongs to the field of surface flaw detection devices, and particularly relates to a PC steel bar surface flaw detection device which comprises a flaw detection device body, the flaw detection device body comprises a base, and the top of the base is fixedly connected with a mounting plate; according to the steel bar flaw detection device disclosed by the utility model, the flaw detection device body and the adjusting mechanism are matched for use, and the limiting size of the inner ring is adjusted by the adjusting mechanism according to the diameter of a steel bar to be subjected to flaw detection; therefore, steel bars with different diameters can be always located at the center position of the flaw detection device body when flaw detection is carried out through the flaw detection device body, and the problems that the diameter of an existing surface flaw detection device is generally fixed, and if a steel bar smaller than the diameter is scanned, the steel bar is inconvenient to place at the center position of the flaw detection device, and the flaw detection is inconvenient are solved. Therefore, the ultrasonic springback of the flaw detection device is influenced, and the flaw detection accuracy is influenced.

Description

Technical Field

[0001] This utility model relates to the field of surface flaw detection devices, specifically a surface flaw detection device for PC steel bars. Background Technology

[0002] Flaw detection devices are mainly used to detect whether there are internal defects (cracks, sand holes, pores, white spots, inclusions, etc.) in machined parts, whether the welds are qualified, and to find any hidden damage, thereby determining whether the workpiece is qualified or not. Some workpieces also require no surface scratches, so surface flaw detection devices are also used.

[0003] After the steel bars are processed, a surface flaw detection device is generally used to ensure the yield rate and acceptance. However, the diameter of existing surface flaw detection devices is generally fixed. If the steel bars are scanned to be smaller than this diameter, it is not convenient to place the steel bars in the center of the flaw detection device. Therefore, it will affect the rebound of the ultrasonic waves of the flaw detection device, thus affecting the accuracy of the flaw detection. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, the diameter of existing surface flaw detection devices is generally fixed. When scanning steel bars smaller than this diameter, it is not convenient to place the steel bar in the center of the flaw detection device, which will affect the rebound of the ultrasonic waves and thus affect the accuracy of the flaw detection. This utility model proposes a surface flaw detection device for PC steel bars.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a PC steel bar surface flaw detection device, including a flaw detection device body, the flaw detection device body including a base, a mounting plate fixedly connected to the top of the base, a display panel fixedly connected to the front side of the mounting plate, a flaw detector provided on the front side of the mounting plate, the output end of the flaw detector being electrically connected to the input end of the display panel, and adjustment mechanisms provided on both sides of the mounting plate.

[0006] The adjustment mechanism includes two fixed columns located on both sides of the mounting plate. A rotating disk is movably connected to the surface of each fixed column, and six first guide columns are movably connected to the inner cavity of the rotating disk. A movable block is fixedly connected to one side of each first guide column, and the surface of the movable block is movably connected to the surface of the fixed column.

[0007] Preferably, the surface of the flaw detector is fixedly connected to a fixing base, the back side of the fixing base is fixedly connected to the front side of the mounting plate, the surface of the fixing column is fixedly connected to a fixing frame, one side of the fixing frame is fixedly connected to one side of the mounting plate, and the surface of the fixing column is fixedly connected to a fixing frame, one side of the fixing frame is fixedly connected to one side of the mounting plate.

[0008] Preferably, a second guide post is fixedly connected to one side of the movable block, and a sliding groove is formed on the surface of the fixed post, with the inner cavity of the sliding groove being movably connected to the surface of the second guide post.

[0009] Preferably, a first guide post is fixedly connected to one side of the moving block, and one end of the first guide post extends through to the outside of the rotating disk.

[0010] Preferably, a damping ring is fixedly connected to the surface of the first guide post, and one side of the damping ring is movably connected to one side of the rotating disk.

[0011] Preferably, a limiting groove is formed on the surface of the fixed column, and a limiting ring is movably connected to the inner cavity of the limiting groove. The surface of the limiting ring is fixedly connected to the inner cavity of the rotating disk.

[0012] Preferably, the surface of the rotating disk is provided with guide grooves, and the number of guide grooves is six. The inner cavity of each guide groove is movably connected to the surface of a first guide post.

[0013] The advantages of this utility model are:

[0014] This invention utilizes a flaw detection device body and an adjustment mechanism for coordinated operation. The adjustment mechanism adjusts the size of the inner ring limit according to the diameter of the steel rod to be detected. Since the horizontal position and height of the inner ring of the adjustment mechanism are consistent with the flaw detection device body, steel rods of different diameters can always be centered on the flaw detection device body when passing through it for flaw detection. This avoids the problem that existing surface flaw detection devices generally have a fixed diameter, making it inconvenient to place the steel rod in the center of the flaw detection device when scanning steel rods smaller than this diameter, which would affect the rebound of the ultrasonic waves and thus the accuracy of flaw detection. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the main body structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the rotating disk structure of this utility model;

[0018] Figure 3 This is a schematic cross-sectional view of the fixed column and rotating disk of this utility model;

[0019] Figure 4 This is an exploded view of the rotating disk of this utility model.

[0020] In the diagram: 1. Flaw detection device body; 101. Flaw detector; 102. Fixing base; 103. Mounting plate; 104. Display panel; 105. Base; 2. Adjustment mechanism; 201. Fixing column; 202. Rotary disk; 203. Fixing frame; 204. First guide column; 205. Damping ring; 206. Moving block; 207. Guide groove; 208. Sliding groove; 209. Limiting ring; 210. Second guide column; 211. Limiting groove. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0022] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0023] This application discloses a surface flaw detection device for PC steel bars. (Refer to...) Figure 1 and Figure 4 A surface flaw detection device for PC steel bars includes a flaw detection device body 1, which includes a base 105. A mounting plate 103 is fixedly connected to the top of the base 105. A display panel 104 is fixedly connected to the front side of the mounting plate 103. A flaw detector 101 is provided on the front side of the mounting plate 103. The output end of the flaw detector 101 is electrically connected to the input end of the display panel 104. Adjustment mechanisms 2 are provided on both sides of the mounting plate 103.

[0024] The adjustment mechanism 2 includes two fixed columns 201 located on both sides of the mounting plate 103. A rotating disk 202 is movably connected to the surface of the fixed column 201. A first guide column 204 is movably connected to the inner cavity of the rotating disk 202. There are six first guide columns 204. A movable block 206 is fixedly connected to one side of the first guide column 204. The surface of the movable block 206 is movably connected to the surface of the fixed column 201.

[0025] Reference Figure 1The surface of the flaw detector 101 is fixedly connected to a fixed base 102. The back side of the fixed base 102 is fixedly connected to the front side of the mounting plate 103. The surface of the fixed column 201 is fixedly connected to a fixed frame 203. One side of the fixed frame 203 is fixedly connected to one side of the mounting plate 103. By setting the fixed base 102 and the fixed frame 203 together, the fixed support is provided for the adjustment mechanism 2 and the flaw detector 101 respectively, so that the axis of the adjustment mechanism 2 and the flaw detector 101 are in the same position, which improves the accuracy of detecting surface scratches on the steel bar.

[0026] Reference Figure 3 A second guide post 210 is fixedly connected to one side of the movable block 206. A sliding groove 208 is provided on the surface of the fixed post 201. The inner cavity of the sliding groove 208 is movably connected to the surface of the second guide post 210. By setting the sliding groove 208 and the second guide post 210 to work together, the movable block 206 can slide in the inner cavity of the sliding groove 208 through the contact between the surface of the second guide post 210 and the inner cavity of the sliding groove 208 during the movement, which provides a guiding effect for the movement of the movable block 206.

[0027] Reference Figure 3 A first guide post 204 is fixedly connected to one side of the moving block 206. One end of the first guide post 204 extends through to the outside of the rotating disk 202. The first guide post 204 is set so that when the rotating disk 202 rotates, it can drive the first guide post 204 to move within the inner cavity of the rotating disk 202.

[0028] Reference Figure 3 A damping ring 205 is fixedly connected to the surface of the first guide post 204. One side of the damping ring 205 is movably connected to one side of the rotating disk 202. The damping ring 205 serves to limit the movement of the first guide post 204, ensuring that the moving block 206 is in close contact with the inner cavity of the rotating disk 202 when the first guide post 204 moves. Due to the damping effect of the damping ring 205, the angle of the rotating disk 202 can be damped and fixed by the friction with one side of the damping ring 205 when the rotating disk 202 rotates to a certain angle.

[0029] Reference Figure 4 A limiting groove 211 is formed on the surface of the fixed column 201. A limiting ring 209 is movably connected to the inner cavity of the limiting groove 211. The surface of the limiting ring 209 is fixedly connected to the inner cavity of the rotating disk 202. By setting the limiting ring 209 and the limiting groove 211 to work together, since the shape of the limiting ring 209 is narrow on the outside and wide on the inside, and the shape of the limiting groove 211 is consistent with the shape of the limiting ring 209, the inner cavity of the rotating disk 202 will not detach from the surface of the fixed column 201 when it rotates on the surface of the fixed column 201.

[0030] Reference Figure 1 The surface of the rotating disk 202 is provided with guide grooves 207. There are six guide grooves 207. The inner cavity of each guide groove 207 is movably connected to the surface of a first guide post 204. Because the guide grooves 207 are set at an angle, the first guide post 204 can be moved when the rotating disk 202 is rotated. When the first guide post 204 moves to the top of the inner cavity of the guide groove 207, it will drive the moving block 206 to move clockwise along the guide of the sliding groove 208.

[0031] Working principle: When the limit size of the adjusting mechanism 2 needs to be increased according to the diameter of the steel bar, the rotating disk 202 is first rotated clockwise. The rotating disk 202 drives the first guide post 204 to slide in the inner cavity of the guide groove 207. At the same time, the first guide post 204 drives the moving block 206 to move. The moving block 206 drives the second guide post 210 to slide clockwise in the inner cavity of the sliding groove 208. At this time, the clockwise surfaces of each moving block 206 will move relative to each other. Finally, after the six moving blocks 206 have moved, the limit size of the adjusting mechanism 2 is adjusted according to the diameter of the steel bar within the inner circle of the rotating disk 202. The diameter forms a hexagonal shape to limit the steel bar. Since the inner axis of the adjusting mechanism 2 is consistent with the inner axis of the flaw detector 101, the two adjusting mechanisms 2 work together to keep the steel bar at the axis position of the flaw detector 101 when it passes through the flaw detector 101 for testing. This ensures that the sound waves emitted by the flaw detector 101 and the reflected sound waves are consistent when the flaw detector 101 performs ultrasonic testing on the steel bar, thereby improving the accuracy of the flaw detection. Finally, the flaw detection results are displayed on the display panel 104 through the electrical connection between the flaw detector 101 and the display panel 104.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A PC steel bar surface flaw detection device, comprising a flaw detection device body (1), characterized in that: The flaw detection device body (1) includes a base (105), the top of the base (105) is fixedly connected with a mounting plate (103), the front side of the mounting plate (103) is fixedly connected with a display panel (104), the front side of the mounting plate (103) is provided with a flaw detector (101), the output end of the flaw detector (101) is electrically connected with the input end of the display panel (104), and the two sides of the mounting plate (103) are provided with adjusting mechanisms (2). The adjusting mechanism (2) includes a fixed column (201), the number of the fixed column (201) is two, the fixed column (201) is located on the two sides of the mounting plate (103), the surface of the fixed column (201) is movably connected with a rotating disc (202), the inner cavity of the rotating disc (202) is movably connected with a first guide column (204), the number of the first guide column (204) is six, one side of the first guide column (204) is fixedly connected with a moving block (206), and the surface of the moving block (206) is movably connected with the surface of the fixed column (201).

2. The PC steel bar surface flaw detection device according to claim 1, characterized in that: The surface of the flaw detector (101) is fixedly connected with a fixed seat (102), the back side of the fixed seat (102) is fixedly connected with the front side of the mounting plate (103), the surface of the fixed column (201) is fixedly connected with a fixed frame (203), and one side of the fixed frame (203) is fixedly connected with one side of the mounting plate (103).

3. The PC steel bar surface flaw detection device according to claim 1, characterized in that: One side of the moving block (206) is fixedly connected with a second guide column (210), the surface of the fixed column (201) is provided with a sliding groove (208), and the inner cavity of the sliding groove (208) is movably connected with the surface of the second guide column (210).

4. The PC steel bar surface flaw detection device according to claim 1, characterized in that: One side of the moving block (206) is fixedly connected with a first guide column (204), and one end of the first guide column (204) penetrates to the outside of the rotating disc (202).

5. The PC steel bar surface flaw detection device according to claim 1, characterized in that: The surface of the first guide column (204) is fixedly connected with a damping ring (205), and one side of the damping ring (205) is movably connected with one side of the rotating disc (202).

6. The PC steel bar surface flaw detection device according to claim 1, characterized in that: The surface of the fixed column (201) is provided with a limiting groove (211), the inner cavity of the limiting groove (211) is movably connected with a limiting ring (209), and the surface of the limiting ring (209) is fixedly connected with the inner cavity of the rotating disc (202).

7. The PC steel bar surface flaw detection device according to claim 1, characterized in that: The surface of the rotating disc (202) is provided with a guide groove (207), and the number of the guide groove (207) is six; the inner cavity of each guide groove (207) is movably connected with the surface of one first guide column (204).

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