An ultrasonic flaw detection device for detecting cracks in automotive bearings

Abstract

This utility model provides an ultrasonic flaw detection device for detecting cracks in automotive bearings. Its features include: a base frame with a drive motor mounted on it; a support plate at the power output end of the drive motor; multiple T-shaped grooves on the support plate; T-shaped sliders sliding within these grooves; butterfly bolts screwed onto the support plate to fix the T-shaped sliders; and support bolts on the T-shaped sliders to support the bearing body. A support frame is mounted on the base frame, with a clamping assembly for fixing the bearing body. An ultrasonic flaw detector for inspecting the bearing body is mounted on the support frame. The ultrasonic flaw detector includes an ultrasonic probe, and a flexible rod is mounted on the support frame, with the ultrasonic probe fixed to the end of the flexible rod. The ultrasonic flaw detection device for detecting cracks in automotive bearings provided by this utility model has a structural design that facilitates the fixing of the bearing and allows for comprehensive and rapid inspection of both the inner and outer rings of the bearing.

Description

Technical Field

[0001] This utility model relates to the field of automotive bearing crack detection technology, specifically to an ultrasonic flaw detection device for automotive bearing crack detection. Background Technology

[0002] The primary function of automotive wheel bearings is to bear weight and provide precise guidance for the rotation of the wheel hub. They withstand both axial and radial loads, making them a crucial component. Traditional automotive wheel bearings consist of two sets of tapered roller bearings or ball bearings. The installation, lubrication, sealing, and clearance adjustment of the bearings are all performed on the automotive production line. To detect cracks in automotive bearings, ultrasonic testing devices are required. These devices use ultrasonic waves to non-destructively inspect internal defects and scratches in the bearings. However, existing ultrasonic testing devices are generally handheld, which is not comprehensive or efficient enough for detecting cracks in automotive bearings. Manual inspection is inefficient, and during the inspection process, the inner and outer rings of the bearing can easily rotate relative to each other, resulting in poor locking and affecting the comprehensiveness of the inspection.

[0003] To address the aforementioned issues, a new ultrasonic flaw detection device for detecting cracks in automotive bearings needs to be designed. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing an ultrasonic flaw detection device for detecting cracks in automotive bearings. The specific solution is as follows: An ultrasonic flaw detection device for detecting cracks in automotive bearings is characterized by: a base frame with multiple support legs at its bottom; a drive motor mounted on the base frame; a bearing plate at the power output end of the drive motor; multiple T-shaped grooves on the bearing plate; T-shaped sliders slidably disposed within the T-shaped grooves; butterfly bolts screwed onto the bearing plate for fixing the T-shaped sliders; and support bolts for supporting the bearing body on the T-shaped sliders; a support frame mounted on the base frame; a clamping assembly for fixing the bearing body on the support frame; an ultrasonic flaw detector for detecting the bearing body mounted on the support frame; the ultrasonic flaw detector including an ultrasonic probe; a flexible rod on the support frame; and the ultrasonic probe fixed to the end of the flexible rod; and the drive motor electrically connected to a controller mounted on the base frame.

[0005] Based on the above, the clamping assembly includes an electric push rod, the telescopic end of which is connected to a lifting frame via a pressure sensor. The lifting frame is rotatably mounted with a rotating rod driven by a servo motor. The rotating rod has two sliders and two threaded sections with opposite directions of rotation that are screwed onto the two sliders respectively. The top of the slider slides left and right against the lifting frame, and the bottom of the slider has a pressing head. The servo motor, electric push rod, and pressure sensor are all electrically connected to the controller.

[0006] Based on the above, the lifting frame is provided with a guide rod that slides through the support frame.

[0007] Based on the above, a rubber pad is provided on the top of the support bolt.

[0008] This utility model has substantial features and progress compared to the prior art. Specifically, this utility model has the following advantages: The ultrasonic flaw detection device for detecting cracks in automotive bearings provided by this utility model has a structural design that facilitates the fixing of the bearing and enables comprehensive and rapid testing of the inner and outer rings of the bearing. It is simple and easy to operate. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0010] Figure 2 yes Figure 1 Schematic diagram of the structure at point A in the middle.

[0011] Figure 3 This is a top view of the assembly structure of some structural components in this utility model.

[0012] In the diagram: 1. Base frame; 2. Support leg; 3. Bearing plate; 3-1. T-shaped slide; 4. Drive motor; 5. T-shaped slider; 6. Butterfly bolt; 7. Support bolt; 8. Support frame; 9. Electric actuator; 10. Lifting frame; 11. Pressure sensor; 12. Rotating rod; 13. Servo motor; 14. Slider; 15. Extrusion head; 16. Guide rod; 17. Controller; 18. Ultrasonic flaw detector; 18-1. Ultrasonic probe; 19. Flexible rod; 20. Bearing body. Detailed Implementation

[0013] The technical solution of this utility model will be further described in detail below through specific embodiments.

[0014] Example like Figure 1-3As shown, this utility model provides an ultrasonic flaw detection device for detecting cracks in automotive bearings, including a base frame 1. The base frame 1 has multiple support legs 2 at its bottom. A drive motor 4 is mounted on the base frame 1. A bearing plate 3 is mounted on the power output end of the drive motor 4. Multiple T-shaped grooves 3-1 are formed on the bearing plate 3, and T-shaped sliders 5 slide within these grooves. Butterfly bolts 6 are screwed onto the bearing plate 3 to fix the T-shaped sliders 5. Support bolts 7 for supporting the bearing body 20 are also provided on the T-shaped sliders 5. A support frame 8 is mounted on the base frame 1, and a clamping assembly for fixing the bearing body 20 is provided on the support frame 8. An ultrasonic flaw detector 18 for detecting the bearing body 20 is mounted on the support frame 8. The ultrasonic flaw detector 18 includes an ultrasonic probe 18-1. A flexible rod 19 is also provided on the support frame 8, and the ultrasonic probe 18-1 is fixed to the end of the flexible rod 19. The drive motor 4 is electrically connected to a controller 17 mounted on the base frame 1.

[0015] The aforementioned clamping assembly is used to clamp and fix the inner or outer ring of the bearing body 20. It includes an electric push rod 9, the telescopic end of which is connected to a lifting frame 10 via a pressure sensor 11. The lifting frame 10 is rotatably equipped with a rotating rod 12 driven by a servo motor 13. The rotating rod 12 is equipped with two sliders 14, and the rotating rod 12 is also equipped with two threaded sections with opposite directions of rotation that are screwed to the two sliders 14 respectively. The top of the sliders 14 slides left and right against the lifting frame 10, and the bottom of the sliders 14 is equipped with a pressing head 15. The servo motor 13, the electric push rod 9, and the pressure sensor 11 are all electrically connected to the controller 17.

[0016] To ensure that the lifting frame 10 can move up and down stably, a guide rod 16 is provided on the lifting frame 10 that slides through the support frame 8.

[0017] To prevent damage to the bearing body 20 when it is being pressed, a rubber pad is provided on the top of the support bolt 7.

[0018] The specific working principle of this utility model is as follows: When it is necessary to inspect the outer ring of the bearing body 20, firstly, adjust the position of the T-shaped slider 5 so that the support bolt 7 supports the outer ring of the bearing body 20. Then, start the servo motor 13 to adjust the position of the slider 14 so that the extrusion head 15 is aligned with the inner ring of the bearing body 20. Next, control the extension end of the electric push rod 9 to extend so that the extrusion head 15 presses against the inner ring of the bearing body 20. When the pressure value measured by the pressure sensor 11 reaches the set value of the controller 17, the controller 17 closes the electric push rod 9. Then, adjust the position of the ultrasonic probe 18-1 so that it is in contact with the outer ring of the bearing body 20. Then, turn on the ultrasonic flaw detector 18 and the drive motor 4.

[0019] When it is necessary to inspect the inner ring of the bearing body 20, first adjust the position of the T-slider 5 so that the support bolt 7 supports the inner ring of the bearing body 20. Then, start the servo motor 13 to adjust the position of the slider 14 so that the extrusion head 15 is aligned with the outer ring of the bearing body 20. Next, control the extension end of the electric push rod 9 to extend so that the extrusion head 15 presses and fixes the outer ring of the bearing body 20. When the pressure value measured by the pressure sensor 11 reaches the set value of the controller 17, the controller 17 closes the electric push rod 9. Then, adjust the position of the ultrasonic probe 18-1 so that it is in contact with the inner ring of the bearing body 20. Then, turn on the ultrasonic flaw detector 18 and the drive motor 4.

[0020] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. An ultrasonic flaw detection device for detecting cracks in automotive bearings, characterized in that: The system includes a base frame (1), with multiple support legs (2) at the bottom. A drive motor (4) is mounted on the base frame (1), and a bearing plate (3) is mounted on the power output end of the drive motor (4). Multiple T-shaped grooves (3-1) are provided on the bearing plate (3), and T-shaped sliders (5) are slidably mounted in the T-shaped grooves (3-1). Butterfly bolts (6) for fixing the T-shaped sliders (5) are also screwed onto the bearing plate (3), and support bolts (7) for supporting the bearing body (20) are also provided on the T-shaped sliders (5). A support frame (8) is provided on the base frame (1), and a clamping assembly for fixing the bearing body (20) is provided on the support frame (8); an ultrasonic flaw detector (18) for detecting the bearing body (20) is provided on the support frame (8), the ultrasonic flaw detector (18) includes an ultrasonic probe (18-1), and a flexible rod (19) is also provided on the support frame (8), the ultrasonic probe (18-1) is fixed at the end of the flexible rod (19); the drive motor (4) is electrically connected to the controller (17) provided on the base frame (1).

2. The ultrasonic flaw detection device for detecting cracks in automotive bearings according to claim 1, characterized in that: The pressing assembly includes an electric push rod (9), the telescopic end of which is connected to a lifting frame (10) via a pressure sensor (11). The lifting frame (10) is rotatably provided with a rotating rod (12) driven by a servo motor (13). The rotating rod (12) is provided with two sliders (14). The rotating rod (12) is also provided with two threaded sections with opposite directions of rotation that are screwed to the two sliders (14). The top of the slider (14) slides left and right against the lifting frame (10), and the bottom of the slider (14) is provided with a pressing head (15). The servo motor (13), the electric push rod (9), and the pressure sensor (11) are all electrically connected to the controller (17).

3. The ultrasonic flaw detection device for detecting cracks in automotive bearings according to claim 2, characterized in that: The lifting frame (10) is provided with a guide rod (16) that slides through the support frame (8).

4. The ultrasonic flaw detection device for detecting cracks in automotive bearings according to claim 1, characterized in that: The top of the support bolt (7) is provided with a rubber pad.

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