A spiral type flaw detection device for aluminum alloy round bars

Abstract

The application discloses a spiral flaw detection device for aluminum alloy round bars, which comprises a bed, an L-shaped sliding table slidingly installed along the length direction of the top end of the bed through a guide rail, an axis rotating clamp installed at the top end of the L-shaped sliding table and used for clamping the end of the aluminum alloy round bar, and a screw linear module installed at the top end of the bed and used for driving the L-shaped sliding table and the axis rotating clamp to move linearly in the axial direction, one side of the top end of the bed is fixed with a stand, and a lifting structure is installed at the top end of the stand. The application forms multiple spiral scanning tracks uniformly distributed on the outer surface of the aluminum alloy round bar, fundamentally changes the problem of insufficient detection coverage caused by single axial linear scanning, effectively expands the detection range of the sound beam on the circumferential and longitudinal deep areas of the round bar, and reduces the risk of missed detection caused by the orientation or special position of defects.

Description

Technical Field

[0001] This invention relates to the field of aluminum alloy round bar quality inspection technology, specifically to a spiral flaw detection device for aluminum alloy round bars. Background Technology

[0002] Ultrasonic testing of aluminum alloy round bars is a non-destructive testing technique implemented to ensure the internal quality of materials. Without damaging the material's integrity, it accurately detects and locates internal defects such as porosity, shrinkage cavities, inclusions, or cracks that may occur during the casting, extrusion, and other production processes, thus enabling rigorous quality screening and grading. It primarily utilizes the propagation characteristics of high-frequency sound waves within materials. When sound waves encounter discontinuities or defect interfaces, they are reflected, refracted, or scattered. The probe receives these echo signals, which are then processed and analyzed by the flaw detector to determine the presence, location, and morphology of defects. During the testing process, the probe maintains close contact with the surface of the round bar through a coupling agent and moves smoothly along its axis, achieving continuous scanning of the entire bar. For example, the aluminum alloy casting flaw detection device disclosed in authorization announcement number CN221004448U includes a disc-shaped detection platform, and further includes: a top beam, which is fixedly connected to the detection platform by a bracket, wherein the lower end of the top beam is connected to a slide table through a translation mechanism, and a flaw detector with a probe is fixedly installed on the top beam, the probe being connected to the lower end of the slide table through a lifting component; a rotating part, which is disposed on the detection platform, is used to drive the disc-shaped aluminum alloy casting to rotate, and adjusts the flaw detection position by changing the positional relationship between the probe and the aluminum alloy casting. However, when the above technical solution is applied to aluminum alloy round bar workpieces with different outer diameters, its linear movement only forms a straight detection path. For round bars with larger outer diameter specifications, the area covered by a single straight path decreases significantly, and a large number of areas are at the edge of the sound field or even not scanned at all, resulting in detection omissions. Therefore, in order to achieve a high coverage rate, the operator needs to perform multiple parallel line scans at different circumferential positions based on experience, which actually reduces the overall efficiency of the workpiece and relies heavily on human subjective judgment, further affecting the defect detection rate. Summary of the Invention

[0003] The purpose of this invention is to provide a spiral flaw detection device for aluminum alloy round bars. The aluminum alloy round bar to be inspected is fixed by an axial rotation clamp. At the end of the aluminum alloy round bar, a lifting structure adjusts the height of the radial adjuster and the ultrasonic flaw detection probe. Then, the radial adjuster makes each ultrasonic flaw detection probe on the left and right sides of the bar contact the outer wall surface of the aluminum alloy round bar. The lead screw linear module drives the axial rotation clamp and the axis of the aluminum alloy round bar to move. At the same time, the axial rotation clamp makes the aluminum alloy round bar rotate around the axis, causing each ultrasonic flaw detection probe to be connected to the bar to form a spiral detection route, thereby obtaining multiple spiral scanning trajectories and solving the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a spiral flaw detection device for aluminum alloy round bars, comprising a bed, an L-shaped slide table slidably mounted along the length direction of the top of the bed table via guide rails and sliding sleeves, an axial rotation clamp mounted on the top of the L-shaped slide table for clamping the end of the aluminum alloy round bar, and a lead screw linear module mounted on the top of the bed table and driving the L-shaped slide table and the axial rotation clamp to move axially linearly. A stand is fixed on one side of the top of the bed table, and a lifting structure is mounted on the top of the stand. At least two ultrasonic flaw detection probes are arranged below the lifting structure and on both sides of the aluminum alloy round bar. A radial adjuster is installed at the drive end of the lifting structure for driving the two ultrasonic flaw detection probes on the left and right sides to synchronously approach or move away from the aluminum alloy round bar. A control panel is mounted on one side of the surface of the bed table, and the output end of the control panel is electrically connected to the input end of the lead screw linear module, the lifting structure, and the radial adjuster.

[0005] Preferably, both ends of the bed surface are bolted to a mounting bracket, and a photoelectric switch for detecting the position of the L-shaped slide is installed on the outer wall of the mounting bracket on the side closest to the vertical center reference plane of the bed.

[0006] Preferably, a rack assembly is installed along the length direction on one side of the top of the bed, and a main gear shaft is rotatably installed on the outer wall of the L-shaped slide above the rack assembly via a vertical bearing seat. The main gear shaft and the rack assembly are kept meshed. A gear reversing reduction transmission group is provided on one side of the outer wall of the L-shaped slide to enable the axial rotation fixture to receive the rotational power from the main gear shaft.

[0007] Preferably, the axis rotation clamp includes an outer cylinder shell fixed on the outer wall of the other side of the L-shaped slide, a horizontal shaft rotatably mounted inside the outer cylinder shell via ball bearings, and a connecting plate with one end extending through to the outside of the outer cylinder shell and fixedly mounted thereon. A chuck is fixed on the outer wall of the connecting plate facing the lifting structure. The other end of the horizontal shaft receives rotational power from the main gear shaft through a gear reversing reduction transmission group.

[0008] Preferably, the gear reversing reduction transmission group includes a primary gear shaft rotatably mounted on the lower part of one side of the outer wall of the L-shaped slide, a reduction gear disk fixed on the other end of the horizontal shaft, and a bevel gear right-angle transmission pair installed between the ends of the primary gear shaft and the main gear shaft. A middle gear shaft is also rotatably mounted on one side of the outer wall of the L-shaped slide, and the middle gear shaft meshes with the reduction gear disk and the primary gear shaft.

[0009] Preferably, the rack assembly includes a loop-shaped long frame fixed to the top of the bed along its length and a straight rack mounted on the upper surface of the loop-shaped long frame, the straight rack meshing with the main gear shaft.

[0010] Preferably, the inside of the loop-shaped long frame is provided with a notch, and limit switches are installed at both ends of the bottom of the loop-shaped long frame. The bottom end of the L-shaped slide is integrally formed with a protrusion, which is used to contact one of the limit switches during the sliding of the L-shaped slide.

[0011] Preferably, the lifting structure includes a first cylinder installed at the center of the top of the upright and a base plate fixed to the lower end of the piston rod of the first cylinder.

[0012] Preferably, the radial adjuster includes a hanger bolted to the bottom end of the base plate, a support shaft rotatably mounted at the left and right positions of the bottom end of the hanger, and a second cylinder hinged to the left and right positions of the bottom of the hanger. The piston rod end of the second cylinder is hinged to a pull arm, and the lower end of the pull arm is fixedly connected to the support shaft.

[0013] Preferably, both ends of the support shaft surface are fixed with convex brackets, the lower ends of the two convex brackets are fixed with support plates, and the ultrasonic flaw detection probe is fixed on one side of the outer wall of the support plate.

[0014] Compared with existing technologies, the beneficial effects of this invention are as follows: This aluminum alloy round bar spiral flaw detection device combines an axial rotation fixture with a radial adjuster, a lead screw linear module, and multiple ultrasonic probes arranged on the left and right sides of the bar to achieve efficient, comprehensive, and stable non-destructive testing of aluminum alloy round bars. It overcomes the limitations of traditional linear scanning methods, allowing the probes to form multiple uniformly distributed spiral scanning trajectories on the outer surface while the bar moves axially, thanks to the continuous rotation of the workpiece itself. This fundamentally changes the problem of insufficient detection coverage caused by single axial linear scanning, effectively expanding the detection range of the sound beam in the circumferential and depth areas of the round bar, and reducing the risk of missed detection due to the special orientation or location of defects. Furthermore, for internal defects such as pores, inclusions, and microcracks that may be distributed in any direction within the aluminum alloy round bar, the spiral path greatly increases the diversity of sound wave incident angles, improving the probability of defects being effectively reflected and identified. At the same time, multiple probes are arranged on the left and right sides of the round bar, further enhancing the redundancy and reliability of the detection. Even if one probe malfunctions due to poor local coupling or signal interference, the other probes can still provide supplementary information, ensuring the integrity of the overall detection results. Finally, the lifting structure and radial adjuster can flexibly adjust the height and radial position of the ultrasonic flaw detection probe according to the round bars of different outer diameters, so that the probe can make good contact with the surface of the bar after clamping, avoiding acoustic coupling failure or detection gap caused by curvature difference. It can be used for batch inspection of aluminum alloy round bars of various diameters without frequent equipment replacement or manual intervention. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the front cross-sectional structure of the present invention; Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ; Figure 3 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ; Figure 4 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 3 ; Figure 5 This is a three-dimensional cross-sectional structural diagram of the present invention; Figure 6 This is a three-dimensional structural diagram of the gear reversing reduction transmission assembly of the present invention; Figure 7 This is a three-dimensional structural diagram of the rack assembly of the present invention; Figure 8 This is a three-dimensional structural diagram of the lifting structure of the present invention; Figure 9 For the present invention Figure 8 Enlarged structural diagram at point A in the middle.

[0016] The attached diagram lists the components represented by each number as follows: 1. Bed table; 101. Mounting bracket; 102. Photoelectric switch; 2. L-shaped slide table; 3. Lead screw linear module; 4. Axis rotary clamp; 401. Outer shell; 402. Horizontal shaft; 403. Connecting plate; 404. Chuck; 5. Control panel; 6. Main gear shaft; 7. Rack assembly; 701. Recurved long frame; 702. Notch; 703. Linear rack; 704. Limit switch; 8. Gear reversing reduction transmission group 801. Reduction gear disc; 802. Intermediate gear shaft; 803. First stage gear shaft; 804. Bevel gear right-angle transmission pair; 9. Frame; 10. Lifting structure; 1001. First cylinder; 1002. Base plate; 11. Radial adjuster; 1101. Hanger; 1102. Second cylinder; 1103. Support shaft; 1104. Pull arm; 1105. Convex seat; 1106. Support plate; 12. Ultrasonic flaw detector probe. Detailed Implementation

[0017] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0018] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0019] In the description of this application, the term "for example" is used to mean "used as an example, illustration, or description." Any embodiment described as "for example" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to make and use the invention. Details are set forth in the following description for purposes of explanation. It should be understood that those skilled in the art will recognize that the invention can be made without using these specific details. In other instances, well-known structures and processes will not be described in detail to avoid obscuring the description of the invention with unnecessary detail. Therefore, the invention is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed in this application.

[0020] Example 1, by Figures 1 to 5The present invention includes a bed 1, an L-shaped slide 2 slidably mounted along the length of the top of the bed 1 via guide rails and sliding sleeves, an axial rotation clamp 4 mounted on the top of the L-shaped slide 2 for clamping the end of an aluminum alloy round bar, and a lead screw linear module 3 mounted on the top of the bed 1 and driving the L-shaped slide 2 and the axial rotation clamp 4 to move axially linearly. A stand 9 is fixed on one side of the top of the bed 1, and a lifting structure 10 is mounted on the top of the stand 9. At least two ultrasonic flaw detection probes 12 are arranged below the lifting structure 10 and on both sides of the aluminum alloy round bar. A radial adjuster 11 is mounted on the driving end of the lifting structure 10 for driving the two ultrasonic flaw detection probes 12 on the left and right sides to move synchronously closer to or away from the aluminum alloy round bar. A control panel 5 is mounted on one side of the surface of the bed 1. The output end of the control panel 5 is electrically connected to the input end of the lead screw linear module 3, the lifting structure 10, and the radial adjuster 11. The guide rail at the bottom of the L-shaped slide table 2 maintains a sliding fit with the fixed sliding sleeve at the top of the bed table 1 to improve the linear movement stability of the axis rotation fixture 4 and the bar. Mounting brackets 101 are bolted to both ends of the surface of the bed 1. A photoelectric switch 102 for detecting the position of the L-shaped slide 2 is installed on the outer wall of the mounting bracket 101 near the vertical center reference plane of the bed 1. The bed 1 provides structural rigidity and stability, and establishes a unified and unchanging geometric reference system for all moving parts and detection actions. During the axial movement of the L-shaped slide 2 and the axis rotary fixture 4 driven by the lead screw linear module 3, the initial position and the end position of the L-shaped slide 2 are detected by the two photoelectric switches 102 respectively. The lead screw linear module 3 drives the L-shaped slide 2 and the axis rotary fixture 4 to move at a constant and programmable speed.

[0021] Example 2, based on Example 1, is... Figure 6 and Figure 7 As shown, a rack assembly 7 is installed along the length direction on one side of the top of the bed 1. A main gear shaft 6 is rotatably installed on the outer wall of the L-shaped slide 2 above the rack assembly 7 via a vertical bearing seat. The main gear shaft 6 and the rack assembly 7 are meshed. A gear reversing reduction transmission group 8 is provided on one side of the outer wall of the L-shaped slide 2 to enable the axis rotation clamp 4 to receive the rotational power from the main gear shaft 6. The axial rotary fixture 4 includes an outer cylindrical shell 401 fixed to the outer wall of the other side of the L-shaped slide table 2, a horizontal shaft 402 rotatably mounted inside the outer cylindrical shell 401 via ball bearings, and a connecting plate 403 with one end of the horizontal shaft 402 extending through to the outside of the outer cylindrical shell 401 and fixedly mounted thereon. A chuck 404 is fixed to the outer wall of the connecting plate 403 facing the lifting structure 10. The other end of the horizontal shaft 402 receives rotational power from the main gear shaft 6 through a gear reversing reduction transmission group 8. The linear screw module 3 drives the L-shaped slide table 2, the axial rotary fixture 4, and the workpiece to move. In the process, since the main gear shaft 6 and the rack assembly 7 are engaged and the rack assembly 7 is in a fixed state, the main gear shaft 6 is driven to rotate. The main gear shaft 6 transmits rotational power to the horizontal shaft 402 through the gear reversing reduction transmission group 8. The horizontal shaft 402 in the outer cylinder shell 401 drives the chuck 404, the chuck 404 and the bar clamped by the chuck 404 to rotate, so as to work in coordination with the lead screw linear module 3. One provides axial feed and the other provides circumferential rotation. The combined motion of the two makes the ultrasonic flaw detection probe 12 form a spiral detection path on the surface of the workpiece. The gear reversing reduction transmission assembly 8 includes a primary gear shaft 803 rotatably mounted on the lower part of one side of the outer wall of the L-shaped slide table 2, a reduction gear disk 801 fixed on the other end of the horizontal shaft 402, and a bevel gear right-angle transmission pair 804 installed between the ends of the primary gear shaft 803 and the main gear shaft 6. A middle gear shaft 802 is also rotatably mounted on one side of the outer wall of the L-shaped slide table 2, meshing with the reduction gear disk 801 and the primary gear shaft 803. The rack assembly 7 includes a rack fixed to the top of the bed table 1. The long, loop-shaped frame 701 in the degree direction and the straight rack 703 mounted on the upper surface of the long, loop-shaped frame 701 mesh with the main gear shaft 6; after the main gear shaft 6 rotates, the main gear shaft 6 will drive the first-stage gear shaft 803 to rotate through the bevel gear right-angle transmission pair 804, and then the first-stage gear shaft 803 will drive the horizontal shaft 402 to rotate through the intermediate gear shaft 802 and the reduction gear disk 801. At this time, the rotation of the bar does not require additional power components and can be synchronized with its own axial movement; The inside of the loop-shaped long frame 701 is provided with a notch 702. Limit switches 704 are installed at both ends of the bottom of the loop-shaped long frame 701. The bottom end of the L-shaped slide table 2 is integrally formed with a protrusion. The protrusion is used to contact one of the limit switches 704 during the sliding process of the L-shaped slide table 2. The notch 702 of the loop-shaped long frame 701 provides space for the movement of the protrusion, and the limit switch 704 is used to indicate the movement point of the protrusion, so as to reflect whether the L-shaped slide table 2, the axis rotation fixture 4, and the bar have reached the limit position that the lead screw linear module 3 can perform.

[0022] Example 3, based on Example 2, by Figure 8 and Figure 9The lifting structure 10 includes a first cylinder 1001 installed at the center of the top of the stand 9 and a base plate 1002 fixed at the lower end of the piston rod of the first cylinder 1001. The first cylinder 1001 controls the height of the base plate 1002, the radial adjuster 11 and the ultrasonic flaw detection probe 12 to quickly raise and lower the entire probe assembly to the approximate working height to adapt to round bars of different diameters. The radial adjuster 11 includes a hanger 1101 bolted to the bottom end of the base plate 1002, a support shaft 1103 rotatably mounted at the left and right positions at the bottom end of the hanger 1101, and a second cylinder 1102 hinged to the left and right positions at the bottom of the hanger 1101. The piston rod end of the second cylinder 1102 is hinged to a pull arm 1104. The lower end of the pull arm 1104 is fixed to the support shaft 1103. Both ends of the surface of the support shaft 1103 are fixed with a convex seat 1105. The lower ends of the two convex seats 1105 are fixed with a support plate 1106. The ultrasonic flaw detection probe 12 is fixed on one side of the outer wall of the support plate 1106. When the operator starts the second cylinder 1102 through the control panel 5, the piston rod of the second cylinder 1102 pushes outward, which will drive the support shaft 1103 to rotate through the pull arm 1104. As a result, the convex seat 1105 and the support plate 1106 will swing towards the outer wall of the rod until the front shoe block of the ultrasonic flaw detection probe 12 contacts the outer wall of the rod, so that good acoustic coupling can be achieved regardless of the change in the thickness of the workpiece.

[0023] In this embodiment, the surface of the aluminum alloy bar to be tested is first cleaned to remove oil and dust that may affect acoustic coupling. The initial position of the L-shaped slide 2 is adjusted according to the length and outer diameter of the aluminum alloy bar to provide sufficient space for subsequent clamping. One end of the aluminum alloy bar is securely inserted into the axial rotation clamp 4 and clamped, ensuring that the axis of the bar coincides with the rotation center of the clamp. Then, the operator operates the control panel 5, instructing the lifting structure 10 to lower the radial adjuster 11 and each ultrasonic flaw detector probe 12 to the height range of the aluminum alloy bar, so that the multiple ultrasonic flaw detector probes 12 distributed on the left and right sides are roughly aligned with the middle position of the bar. Then, the radial adjuster 11 is activated, causing the ultrasonic flaw detector probes 12 on the left and right sides to move synchronously towards the center until all ultrasonic flaw detector probes 12 achieve stable, uniform, and slight contact with the outer wall surface of the aluminum alloy bar through their front shoe blocks. At this stage, a small amount of coupling agent can be manually added to ensure effective acoustic energy transmission. After clamping and alignment are completed, the lead screw is set to straighten. The axial travel speed of module 3 is proportional to the rotational speed of the axis rotary fixture 4. Then, the linear module 3 drives the L-shaped slide 2 and the axis rotary fixture 4 on it to move uniformly along the length of the bed 1. At the same time, the axis rotary fixture 4 drives the aluminum alloy round bar to rotate continuously around its own axis, so that multiple ultrasonic flaw detection probes 12, which are stationary relative to the surface of the round bar, walk out a series of tight and uniform spiral detection routes on the bar. Each probe continuously emits ultrasonic pulses into the bar and receives echo signals from internal defects or the bottom surface. During the entire scanning process, the ultrasonic flaw detector connected to the ultrasonic flaw detection probe 12 and the display of its ultrasonic signal are observed to see if they are stable. After the scanning action is completed, all movement of the device is stopped by the control panel 5 and the round bar that has been inspected is removed from the axis rotary fixture 4. Based on the waveform characteristics, equivalent magnitude and distribution of the ultrasonic flaw detector, combined with the product acceptance standards, the final manual interpretation and confirmation are performed.

[0024] It should be noted that the descriptions of each embodiment in the above embodiments have different focuses. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0025] Those skilled in the art will understand that embodiments of the present invention can be provided as methods, systems, or computer program products. Therefore, the present invention can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention can take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0026] This invention is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded computer, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart illustrations. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0027] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0028] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0029] Although preferred embodiments of the invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including both the preferred embodiments and all changes and modifications falling within the scope of the invention.

[0030] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A spiral flaw detection device for aluminum alloy round bars, characterized in that: The system includes a bed (1), an L-shaped slide (2) which is slidably mounted along the length of the top of the bed (1) via guide rails and sliding sleeves, an axial rotation clamp (4) mounted on the top of the L-shaped slide (2) for clamping the end of an aluminum alloy round bar, and a lead screw linear module (3) mounted on the top of the bed (1) and driving the L-shaped slide (2) and the axial rotation clamp (4) to move axially linearly. A support frame (9) is fixed on one side of the top of the bed (1), and a lifting structure (10) is mounted on the top of the support frame (9). At least two ultrasonic flaw detection probes (12) are provided below the lifting structure (10) and on both sides of the aluminum alloy round bar. The driving end of the lifting structure (10) is equipped with a radial adjuster (11) for driving the two ultrasonic flaw detection probes (12) on the left and right sides to move closer to or further away from the aluminum alloy round bar synchronously. A control panel (5) is installed on one side of the surface of the bed (1). The output end of the control panel (5) is electrically connected to the input end of the lead screw linear module (3), the lifting structure (10), and the radial adjuster (11).

2. The spiral flaw detection device for aluminum alloy round bars according to claim 1, characterized in that: Both ends of the surface of the bed (1) are bolted with mounting brackets (101), and a photoelectric switch (102) for detecting the position of the L-shaped slide (2) is installed on the outer wall of the mounting bracket (101) near the vertical center reference plane of the bed (1).

3. The spiral flaw detection device for aluminum alloy round bars according to claim 1, characterized in that: A rack assembly (7) is installed along the length direction on one side of the top of the bed (1). A main gear shaft (6) is rotatably installed on the outer wall of the L-shaped slide (2) above the rack assembly (7) via a vertical bearing seat. The main gear shaft (6) and the rack assembly (7) are meshed. A gear reversing reduction transmission group (8) is provided on one side of the outer wall of the L-shaped slide (2) to enable the axis rotation clamp (4) to receive the rotational power from the main gear shaft (6).

4. The spiral flaw detection device for aluminum alloy round bars according to claim 3, characterized in that: The axial rotation clamp (4) includes an outer cylinder shell (401) fixed on the outer wall of the other side of the L-shaped slide (2), a horizontal shaft (402) rotatably installed inside the outer cylinder shell (401) by ball bearings, and a connecting plate (403) with one end of the horizontal shaft (402) extending through to the outside of the outer cylinder shell (401) and fixedly installed. A chuck (404) is fixed on the outer wall of the connecting plate (403) facing the lifting structure (10). The other end of the horizontal shaft (402) receives rotational power from the main gear shaft (6) through a gear reversing reduction transmission group (8).

5. The spiral flaw detection device for aluminum alloy round bars according to claim 4, characterized in that: The gear reversing reduction transmission group (8) includes a primary gear shaft (803) rotatably mounted on the lower part of the outer wall of one side of the L-shaped slide (2), a reduction gear disk (801) fixed on the other end of the horizontal shaft (402), and a bevel gear right angle transmission pair (804) installed between the ends of the primary gear shaft (803) and the main gear shaft (6). A middle gear shaft (802) is also rotatably mounted on the outer wall of one side of the L-shaped slide (2), and the middle gear shaft (802) meshes with the reduction gear disk (801) and the primary gear shaft (803).

6. The spiral flaw detection device for aluminum alloy round bars according to claim 3, characterized in that: The rack assembly (7) includes a loop-shaped long frame (701) fixed on the top of the bed (1) along its length and a straight rack (703) mounted on the upper surface of the loop-shaped long frame (701). The straight rack (703) meshes with the main gear shaft (6).

7. The spiral flaw detection device for aluminum alloy round bars according to claim 6, characterized in that: The inside of the spiral frame (701) is provided with a notch (702), and limit switches (704) are installed at both ends of the bottom of the spiral frame (701). The bottom of the L-shaped slide (2) is integrally formed with a protrusion, which is used to contact one of the limit switches (704) during the sliding process of the L-shaped slide (2).

8. The spiral flaw detection device for aluminum alloy round bars according to claim 1, characterized in that: The lifting structure (10) includes a first cylinder (1001) installed at the center of the top of the stand (9) and a base plate (1002) fixed to the lower end of the piston rod of the first cylinder (1001).

9. The spiral flaw detection device for aluminum alloy round bars according to claim 8, characterized in that: The radial adjuster (11) includes a hanger (1101) bolted to the bottom end of the base plate (1002), a support shaft (1103) rotatably mounted at the left and right positions at the bottom end of the hanger (1101), and a second cylinder (1102) hinged to the left and right positions at the bottom of the hanger (1101). The piston rod end of the second cylinder (1102) is hinged to a pull arm (1104), and the lower end of the pull arm (1104) is fixedly connected to the support shaft (1103).

10. The spiral flaw detection device for aluminum alloy round bars according to claim 9, characterized in that: Both ends of the support shaft (1103) are fixed with convex seats (1105), and the lower ends of the two convex seats (1105) are fixed with support plates (1106). The ultrasonic flaw detector (12) is fixed on one side of the outer wall of the support plate (1106).

Images