Steel bar bending detection device

Abstract

The invention relates to the technical field of steel bar detection, and discloses a steel bar bending detection device which comprises a bottom frame, a first fixing block and two second fixing blocks are fixed to one end of the top of the bottom frame through bolts, a guide rail is fixed between the first fixing block and the second fixing blocks through bolts, and sliding seats are slidably connected to the outer walls of the multiple sides of the guide rail. A first sensor used for detecting the longitudinal bending degree of the steel bar is arranged on one side of the sliding base, and arc-shaped elastic plates fixed to the first fixing block and the second fixing block are welded to the two sides of the sliding base respectively. Through cooperative use of the first sensor and the second sensor, transverse detection and longitudinal detection can be carried out on the reinforcing steel bar, and transverse detection and longitudinal detection can be combined to form a plane, so that multi-angle detection can be carried out on the bending degree of the reinforcing steel bar, and all bending degree detection results of the reinforcing steel bar can be obtained at a time; and the detection efficiency of the bending degree of the steel bar is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of steel bar detection, in particular to a steel bar bending detection device. Background Art

[0002] Rebar refers to steel used for reinforced concrete and prestressed reinforced concrete. Its cross-section is circular, sometimes square with rounded corners, and includes plain round steel bars, ribbed steel bars, and twisted steel bars.

[0003] After searching, the Chinese patent with publication number CN218726205U discloses a safe steel bar bending detection device, which can effectively prevent the steel bar from rebounding quickly after instantaneous force unloading, prevent the danger caused by steel bar rebound, and further improve the safety of the detection device. However, some steel bars are not bent completely in one direction. A steel bar may bend at multiple angles. It can only detect the curvature on the plane. When detecting other angles, it is necessary to adjust the angle of the steel bar to make the angle of the steel bar parallel to the plane, resulting in low efficiency of steel bar bending detection. Summary of the Invention

[0004] Technical problems solved In response to the shortcomings of the existing technology, the present invention provides a steel bar bending detection device, which is mainly used to solve the problem of low steel bar bending detection efficiency caused by the need to adjust the angle of the steel bar to make the angle of the steel bar parallel to the plane when performing detection at other angles.

[0005] Technical Solution To achieve the above object, the present invention provides the following technical solutions: The cam is secured to the chassis by means of a lever, which has two latches that are fixed to the chassis by means of a pin, and a lever, having two latches that are fixed to the chassis by means of a pin.

[0006] Furthermore, the limiting assembly includes a through hole that is opened on the slide, and two symmetrically arranged slides are slidably connected in the through hole. A linkage assembly is provided between the two slides to enable the two slides to move toward each other. The tops of the two slides are fixed with a connecting frame by bolts, and two auxiliary rollers are rotatably connected between the connecting frame and the slide through bearings. A positioning assembly is provided on one side of one of the slides to fix the position of the slide.

[0007] On the basis of the above-mentioned scheme, the linkage assembly includes two avoidance grooves opened on the inner wall of the bottom of the slide, and the inner walls of one side of the two avoidance grooves are respectively fixed with a first rack and a second rack by bolts, and the bottom inner wall of the through hole in the slide is connected to a gear that meshes with the first rack and the second rack through an axis rotation, and the first rack and the second rack are distributed in a central symmetrical manner with the rotation point of the gear as the center.

[0008] As a further solution of the present invention, the positioning assembly includes a connecting block welded to one side of one of the slides, a threaded groove is opened through one side of the connecting block, and one side of the slide is rotatably connected to a screw rod passing through the threaded groove and threadedly connected to the threaded groove through a bearing, and one end of the screw rod is fixed to a handle by a bolt.

[0009] Furthermore, the adjustment group includes two guide frames fixed to the top of the base frame by bolts, and a slide fixed to the second sensor is slidably connected between the inner walls on both sides of the two guide frames. The top inner wall of one of the guide frames is rotatably connected to a threaded rod passing through the slide and threadedly connected to the slide through a bearing, and the bottom of the threaded rod is rotatably connected to the base frame.

[0010] Based on the above scheme, the pushing assembly includes two conveying groups, each of which includes multiple support frames fixed to the top of the base frame by bolts, and the circumferential outer wall of the support frame is rotatably connected to the support wheel through a bearing. A servo motor is fixed to the outer wall of one side of one of the support frames by bolts, and the output shaft of the servo motor is fixed to the support wheel. A downward pressing assembly for squeezing the steel bars onto the support wheel is provided on the top of the base frame.

[0011] As a further solution of the present invention, the downward pressure assembly includes a fixing frame fixed on the top of the base frame, the top outer wall of the fixing frame is fixed with an electric push rod by bolts, the piston rod of the electric push rod passes through the fixing frame and is fixed with a mounting frame by bolts, and a plurality of pressure wheels are rotatably connected between the inner walls on both sides of the mounting frame through bearings.

[0012] Furthermore, two limit frames are fixed to the bottom inner wall of the through hole in the slide by bolts, two insertion holes are provided on one side of the two slides, and two ends of the limit frames are respectively inserted into the insertion holes of the two slides.

[0013] On the basis of the above solution, the mechanical detection assembly includes a pointer fixed to one side of the slide by bolts, and a scale used in conjunction with the pointer is provided on the top of the base.

[0014] Beneficial effects Compared with the prior art, the present invention provides a steel bar bending detection device with the following beneficial effects: 1. The present invention can perform horizontal and vertical detection on steel bars by using the first sensor in conjunction with the second sensor. The combination of horizontal detection and vertical detection can form a plane, thereby performing multi-angle detection on the curvature of the steel bars. It can detect all the curvatures of the steel bars at one time, thereby improving the detection efficiency of the curvature of the steel bars.

[0015] 2. The present invention is provided with a limit assembly, which can ensure that the steel bar is always within the range sensed by the first sensor, and is applicable to steel bars of different diameters, thereby improving the applicability of the device.

[0016] 3. The present invention provides a linkage assembly so that the two slides can move toward each other. There is no need to adjust the position of the slide individually each time, so that the two slides can move the same distance, so that the steel bar is always located in the middle part of the slide, thereby improving the accuracy of the longitudinal curvature detection of the steel bar.

[0017] 4. The present invention provides an adjustment group to change the height of the second sensor so that the detection position of the second sensor is flush with the axis of the steel bar, thereby improving the detection accuracy of the transverse curvature of the steel bar.

[0018] 5. The present invention provides a pushing component to make the steel bar in close contact with the support wheel, thereby pushing the steel bar to move toward the first sensor, which can realize automatic detection of the steel bar without manual pushing of the steel bar, thereby improving the labor-saving effect of using the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of a steel bar bending detection device proposed by the present invention; Figure 2 This is a partially enlarged structural diagram of a steel bar bending detection device proposed by the present invention; Figure 3 This is a schematic diagram of the enlarged structure of the slide of a steel bar bending detection device proposed by the present invention; Figure 4 This is a schematic cross-sectional view of a slide block of a steel bar bending detection device proposed by the present invention; Figure 5 This is a schematic diagram of the enlarged structure of a guide frame of a steel bar bending detection device proposed by the present invention; Figure 6This is a schematic structural diagram of a pushing component of a steel bar bending detection device proposed in the present invention.

[0020] In the figure: 1. Base frame; 2. Guide rail; 3. Guide frame; 4. Fixed frame; 5. Slide; 6. Scale; 7. Arc-shaped elastic plate; 8. Pointer; 9. First fixed block; 10. First sensor; 11. Second fixed block; 12. Screw rod; 13. Connecting block; 14. Turning handle; 15. Slide; 16. Connecting frame; 17. Auxiliary roller; 18. Limiting frame; 19. Socket; 20. Avoidance groove; 21. First rack; 22. Second rack; 23. Gear; 24. Slide plate; 25. Second sensor; 26. Threaded rod; 27. Mounting frame; 28. Electric push rod; 29. Pressure roller; 30. Support roller; 31. Support frame. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0022] The serial numbers assigned to components herein, such as "first," "second," etc., are used solely to distinguish the objects being described and do not convey any sequential or technical meaning. References to "connection" and "coupling" herein, unless otherwise specified, include both direct and indirect connections (couplings). In the description of the present invention, it should be understood that terms such as "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise" indicate positions or relationships based on those shown in the accompanying drawings. These terms are intended solely to facilitate the description of the present invention and simplify the description. They are not intended to indicate or imply that the device or component being referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0023] Reference Figures 1-6, a steel bar bending detection device includes a base frame 1, one end of the top of the base frame 1 is fixed with a first fixed block 9 and two second fixed blocks 11 by bolts, a guide rail 2 is fixed between the first fixed block 9 and the second fixed block 11 by bolts, a slide 5 is slidably connected to the guide rail 2, one side of the slide 5 is provided with a first sensor 10 for detecting the longitudinal curvature of the steel bar, both sides of the slide 5 are welded with an arc-shaped elastic plate 7 fixed to the first fixed block 9 and the second fixed block 11, which can keep the slide 5 in the middle position for facilitating the detection of the longitudinal curvature of the steel bar, a limiting component for clamping the steel bar is provided on the top of the slide 5, two groups of adjustment groups are provided in the middle part of the top of the base frame 1, and the adjustment group is provided with a second sensor 25 for detecting the transverse curvature of the steel bar, the first sensor 10 and the second sensor 25 are both multi-point laser sensors, such as the multi-point laser sensor of the Keyence IX series, the other end of the top of the base frame 1 A pushing component is provided for pushing the steel bar forward, and a mechanical detection component for secondary detection of the transverse curvature of the steel bar is provided on one side of the slide 5. Before use, the height of the second sensor 25 is adjusted according to the size of the steel bar, and the limit component is adjusted so that the steel bar can be clamped by the limit component. When in use, one end of the steel bar is sent into the pushing component, and the pushing component will drive the steel bar to move in the direction of the slide 5. During the movement, it will pass through the second sensor 25, and the second sensor 25 will detect the transverse curvature of the steel bar. When the steel bar is transmitted to the limit component, it will be clamped by the limit component and will not affect the linear movement of the steel bar. The first sensor 10 will detect the longitudinal curvature of the steel bar. The combination of transverse detection and longitudinal detection can form a plane, thereby performing multi-angle detection on the curvature of the steel bar, and can detect all the curvatures of the steel bar at one time, thereby improving the detection efficiency of the curvature of the steel bar.

[0024] In the present invention, the limit assembly includes a through hole that passes through the slide 5, and two axially symmetrical slides 15 are slidably connected in the through hole. A linkage assembly is provided between the two slides 15 to enable the two slides 15 to move toward each other. The bottom inner wall of the through hole in the slide 5 is fixed with two limit frames 18 by bolts. Two insertion holes 19 are provided on one side of the two slides 15, and the two ends of the limit frame 18 are respectively inserted into the insertion holes 19 of the two slides 15 to assist in guiding the slide 15, so that the sliding of the slide 15 is more stable. The tops of the two slides 15 are fixed with a connecting frame 16 by bolts, and the connecting frame 16 and the slide 15 are connected. There are two auxiliary rollers 17 connected by bearings for rotation. After clamping the steel bars, the steel bars can still move forward. The auxiliary rollers 17 located on the two connecting frames 16 clamp the steel bars, which can keep the steel bars within the range sensed by the first sensor 10. One side of one of the slides 15 is provided with a positioning component for fixing the position of the slide 15. The positioning component drives one of the slides 15 to move in the through hole. The movement of one slide 15 can drive the other slide 15 to move through the linkage component, thereby changing the distance between the auxiliary rollers 17 on both sides, making it suitable for steel bars of different diameters, thereby improving the applicability of the device.

[0025] In the present invention, the linkage assembly includes two avoidance grooves 20 opened on the inner wall of the bottom of the slide 15, and the inner walls of one side of the two avoidance grooves 20 are respectively fixed with a first rack 21 and a second rack 22 by bolts. The bottom inner wall of the through hole in the slide 5 is connected to a gear 23 that is meshed with the first rack 21 and the second rack 22 through an axis rotation, and the first rack 21 and the second rack 22 are centrally symmetrically distributed with the rotation point of the gear 23 as the center. When one of the slides 15 moves, it will drive the first rack 21 to move. Under the action of the gear 23, the second rack 22 will move in the opposite direction of the first rack 21, thereby moving the other slide 15, so that the two slides 15 can move toward each other. There is no need to adjust the position of the slide 15 separately each time, and the same distance of movement of the two slides 15 can be achieved, so that the steel bar is always located in the middle part of the slide 5, thereby improving the accuracy of the detection of the longitudinal curvature of the steel bar.

[0026] In the present invention, the positioning assembly includes a connecting block 13 welded to one side of one of the slides 15, a threaded groove is opened through one side of the connecting block 13, and one side of the slide 5 is rotatably connected to a screw rod 12 that passes through the threaded groove and is threadedly connected to the threaded groove through a bearing. One end of the screw rod 12 is fixed with a turning handle 14 by a bolt. When the turning handle 14 is turned, the turning handle 14 drives the screw rod 12 to rotate, thereby driving the connecting block 13 and the slide 5 to move together, and can perform auxiliary limiting at the current position.

[0027] In the present invention, the adjustment group includes two guide frames 3 fixed to the top of the base frame 1 by bolts, and a slide 24 fixed to the second sensor 25 is slidably connected between the inner walls on both sides of the two guide frames 3. The top inner wall of one of the guide frames 3 is rotatably connected to a threaded rod 26 that passes through the slide 24 and is threadedly connected to the slide 24 through a bearing, and the bottom of the threaded rod 26 is rotatably connected to the base frame 1. By rotating the threaded rod 26, the slide 24 moves upward or downward in the guide frame 3, thereby changing the height of the second sensor 25, so that the detection position of the second sensor 25 is flush with the axis of the steel bar, thereby improving the detection accuracy of the transverse curvature of the steel bar.

[0028] In the present invention, the pushing assembly includes two groups of conveying groups, and both groups of conveying groups include multiple support frames 31 fixed to the top of the base frame 1 by bolts. The circumferential outer wall of the support frame 31 is rotatably connected to the support wheel 30 through a bearing. A servo motor is fixed to the outer wall of one side of one of the support frames 31 by bolts, and the output shaft of the servo motor is fixed to the support wheel 30. A downward pressure assembly for squeezing the steel bar onto the support wheel 30 is provided on the top of the base frame 1. The servo motor is started, and the servo motor drives one of the support wheels 30 to rotate. Under the action of the downward pressure assembly, the steel bar is in close contact with the support wheel 30, thereby pushing the steel bar to move toward the first sensor 10, which can realize automatic detection of the steel bar without manually pushing the steel bar, thereby improving the labor-saving effect of using the device.

[0029] In the present invention, the downward pressing assembly includes a fixing frame 4 fixed to the top of the base frame 1, and an electric push rod 28 is fixed to the top outer wall of the fixing frame 4 by bolts. The piston rod of the electric push rod 28 passes through the fixing frame 4 and is fixed to the mounting frame 27 by bolts. A plurality of pressure wheels 29 are rotatably connected between the inner walls on both sides of the mounting frame 27 through bearings, and the pressure wheels 29 are matched with the support wheels 30. When the electric push rod 28 is started, the electric push rod 28 drives the mounting frame 27 to move downward, so that the pressure wheels 29 contact the steel bars and squeeze the steel bars to move toward the support wheels 30, thereby increasing the friction between the steel bars and the support wheels 30, making it easier to push the steel bars.

[0030] In the present invention, the mechanical detection component includes a pointer 8 fixed to one side of the slide 5 by bolts, and a scale 6 is provided on the top of the base frame 1 for use with the pointer 8 to measure the movement of the slide 5 so that the moving distance of the slide 5 can be clearly known.

[0031] The present invention is divided into the following steps when used: S1: Rotate the threaded rod 26 to move the slide plate 24 upward or downward in the guide frame 3, thereby changing the height of the second sensor 25 so that the detection position of the second sensor 25 is flush with the axis of the steel bar; S2: Place the steel bar on top of the support wheel 30, then start the electric push rod 28, which drives the mounting frame 27 to move downward, so that the pressing wheel 29 contacts the steel bar and squeezes the steel bar toward the support wheel 30, increasing the friction between the steel bar and the support wheel 30; S3: The servo motor is started, which drives one of the support wheels 30 to rotate. Under the action of the pressing assembly, the steel bar is brought into close contact with the support wheel 30, thereby pushing the steel bar toward the first sensor 10; S4: During the movement, the steel bar passes through the second sensor 25, which detects the transverse curvature of the steel bar; S5: When the steel bar is about to be delivered to the slide 5, the handle 14 is turned, and the handle 14 drives the screw rod 12 to rotate, thereby driving the connecting block 13 and one of the slides 5 to move together. The movement of one slide 15 drives the first rack 21 to move. Under the action of the gear 23, the second rack 22 moves in the opposite direction to the first rack 21, thereby moving the other slide 15. The two slides 15 can move towards each other, so that the steel bar can be clamped by the auxiliary roller 17; S6: At the same time, the steel bar will be tested for longitudinal curvature by the first sensor 10. The combination of transverse detection and longitudinal detection can form a plane, thereby performing multi-angle detection on the curvature of the steel bar, and can detect all curvatures of the steel bar at one time.

[0032] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0033] The above-described embodiments merely illustrate several embodiments of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A steel bar bending detection device, comprising a base frame (1), characterized in that: One end of the top of the base frame (1) is fixedly connected to a first fixed block (9) and two second fixed blocks (11), a guide rail (2) is fixedly connected between the first fixed block (9) and the second fixed block (11), a slide seat (5) is slidably connected to the guide rail (2), one side of the slide seat (5) is provided with a first sensor (10) for detecting the longitudinal curvature of the steel bar, and both sides of the slide seat (5) are respectively fixedly connected to an arc-shaped elastic plate (7) fixed to the first fixed block (9) and the second fixed block (11), a top of the slide seat (5) is provided with a limit assembly for clamping the steel bar, two groups of adjustment groups are provided in the middle part of the top of the base frame (1), and the adjustment groups are provided with a second sensor (25) for detecting the transverse curvature of the steel bar, the other end of the top of the base frame (1) is provided with a pushing assembly for pushing the steel bar forward, and one side of the slide seat (5) is provided with a mechanical detection assembly for secondary detection of the transverse curvature of the steel bar.

2. A steel bar bending detection device according to claim 1, characterized in that: The limiting assembly includes a through hole extending through the slide (5), wherein two symmetrically arranged slides (15) are slidably connected in the through hole, and a linkage assembly for causing the two slides (15) to move toward each other is provided between the two slides (15), and the tops of the two slides (15) are fixedly connected to a connecting frame (16), and two auxiliary rollers (17) are rotatably connected between the connecting frame (16) and the slide (15), and a positioning assembly for fixing the position of the slide (15) is provided on one side of one of the slides (15).

3. A steel bar bending detection device according to claim 2, characterized in that: The linkage assembly includes two avoidance grooves (20) provided on the inner wall of the bottom of the slide (15), and the inner walls of one side of the two avoidance grooves (20) are fixedly connected to a first rack (21) and a second rack (22), respectively. The inner wall of the bottom of the through hole in the slide (5) is connected to a gear (23) meshing with the first rack (21) and the second rack (22) through an axis, and the first rack (21) and the second rack (22) are centrally symmetrically distributed with the rotation point of the gear (23) as the center.

4. A steel bar bending detection device according to claim 2, characterized in that: The positioning assembly includes a connecting block (13) fixedly connected to one side of one of the slides (15), a threaded groove extending through one side of the connecting block (13), a screw rod (12) passing through the threaded groove and threadedly connected to the threaded groove being rotatably connected to one side of the slide (5), and a turning handle (14) fixedly connected to one end of the screw rod (12).

5. The steel bar bending detection device according to claim 1, characterized in that: The adjustment group comprises two guide frames (3) fixedly connected to the top of the base frame (1), a slide plate (24) fixed to the second sensor (25) is slidably connected between the inner walls on both sides of the two guide frames (3), a threaded rod (26) passing through the slide plate (24) and threadedly connected to the slide plate (24) is rotatably connected to the inner wall on the top of one of the guide frames (3), and the bottom of the threaded rod (26) is rotatably connected to the base frame (1).

6. A steel bar bending detection device according to claim 1, characterized in that: The pushing assembly includes two conveying groups, each of which includes a plurality of support frames (31) fixedly connected to the top of the base frame (1), the circumferential outer wall of the support frame (31) is rotatably connected to a support wheel (30), one side outer wall of one of the support frames (31) is fixedly connected to a servo motor, and the output shaft of the servo motor is fixed to the support wheel (30), and a pressing assembly for squeezing steel bars onto the support wheel (30) is provided on the top of the base frame (1).

7. A steel bar bending detection device according to claim 6, characterized in that: The pressing assembly comprises a fixing frame (4) fixed on the top of the base frame (1), an electric push rod (28) is fixedly connected to the top outer wall of the fixing frame (4), a piston rod of the electric push rod (28) passes through the fixing frame (4) and is fixedly connected to the mounting frame (27), and a plurality of pressure wheels (29) are rotatably connected between the inner walls on both sides of the mounting frame (27).

8. The steel bar bending detection device according to claim 2, characterized in that: Two limiting frames (18) are fixedly connected to the bottom inner wall of the through hole in the slide (5), and two insertion holes (19) are respectively provided on one side of the two slides (15), and the two ends of the limiting frame (18) are respectively inserted into the insertion holes (19) of the two slides (15).

9. The steel bar bending detection device according to claim 1, characterized in that: The mechanical detection component comprises a pointer (8) fixedly connected to one side of the slide (5), and a scale (6) for use with the pointer (8) is provided on the top of the base frame (1).

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