Metal defect detector based on ultrasonic waves

Abstract

The utility model relates to the technical field of metal defect detection equipment, in particular to a metal defect detector based on ultrasonic waves, which comprises a base, an upper mounting cover is arranged above the base, a detector body is fixedly mounted at the top of the upper mounting cover, and a detection probe of the detector body is positioned in the upper mounting cover. And a driving mechanism for driving the detection probe to move left and right and up and down is mounted in the upper mounting cover. The detection probe of the detector body is positioned in the upper mounting cover, and the driving mechanism for driving the detection probe to move left and right and up and down is mounted in the upper mounting cover. A placement plate is arranged in the base, first electric telescopic rods are arranged at the positions, close to the four corners, of the lower portion of the placement plate, and the telescopic rods are connected with the base and the placement plate through universal joints, so that the angle and height of the placement plate can be adjusted, and it is guaranteed that the upper surface of a metal sample is horizontal and can adapt to metal samples of different shapes and sizes; therefore, the detection flexibility and accuracy are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of metal defect detection equipment, in particular to an ultrasonic-based metal defect detector. Background Technique

[0002] In the field of metal processing and manufacturing, the defect detection of metal materials is a crucial link. Traditional metal defect detection methods often rely on manual observation and simple measuring tools. This method is not only inefficient but also difficult to accurately detect tiny defects inside the metal. With the progress of technology, ultrasonic detection technology has been widely used in metal defect detection due to its non-destructive, high-precision, and high-efficiency characteristics.

[0003] However, there are still some deficiencies in the design and use of existing ultrasonic-based metal defect detectors. For example, the placement plates of many detectors are designed to be fixed and cannot adapt to metal samples of different shapes and sizes, resulting in limited detection flexibility and accuracy. In view of this, we propose an ultrasonic-based metal defect detector. Content of the Utility Model

[0004] To make up for the above deficiencies, the utility model provides an ultrasonic-based metal defect detector.

[0005] The technical solution of the utility model is as follows:

[0006] The ultrasonic-based metal defect detector includes a base. An upper mounting cover is provided above the base. A detector body is fixedly installed at the top of the upper mounting cover. The detection probe of the detector body is located inside the upper mounting cover. And a driving mechanism for driving the detection probe to move left and right and up and down is installed inside the upper mounting cover. A placement plate is provided inside the base. A first electric telescopic rod is provided at each of the four corners near the bottom of the placement plate. The bottom of the first electric telescopic rod is hinged to the inner wall of the bottom of the base through a universal joint. The output shaft of the first electric telescopic rod is hinged to the bottom of the placement plate through a universal joint.

[0007] As a preferred technical solution, a hemispherical cover is fixedly installed at the center of the bottom of the placement plate. An activity ball is movably installed inside the hemispherical cover. A fixed seat is fixedly connected to the center of the bottom of the activity ball through a connecting rod. The fixed seat is fixed to the center of the bottom of the base through bolts.

[0008] As a preferred technical solution, when the piston rods of the four first electric telescopic rods extend to half, the placement plate is horizontal.

[0009] As a preferred technical solution, an opening is provided on the front side of the upper mounting cover, and a front baffle is hinged to the bottom of the opening.

[0010] As a preferred technical solution, a fixing block is fixedly connected to the outer wall of the front baffle near the top, and the fixing block is fixedly connected to the outer wall of the front side of the upper mounting cover through a fixing bolt.

[0011] As a preferred technical solution, the driving mechanism includes a movable block that can move left and right. Two second electric telescopic rods are symmetrically and fixedly installed at the bottom of the movable block, and the piston rods of the two second electric telescopic rods are fixedly connected to the detection probe.

[0012] As a preferred technical solution, two driving lead screws are symmetrically and rotatably installed near the top of the upper mounting cover. Both driving lead screws are threadedly connected to the movable block. Two servo motors are symmetrically and fixedly installed on the outer wall of the upper mounting cover, and the output shafts of the two servo motors are coaxially fixed to the two driving lead screws respectively.

[0013] As a preferred technical solution, two guide rods that both pass through the movable block are symmetrically and fixedly installed near the top of the inner wall of the upper mounting cover.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] In the present utility model, the detection probe of the detector body is located inside the upper mounting cover, and a driving mechanism for driving the detection probe to move left and right and up and down is installed inside the upper mounting cover. A placement plate is provided inside the base. Four first electric telescopic rods are provided near the four corners below the placement plate. These telescopic rods are connected to the base and the placement plate through universal joints, so that the placement plate can adjust the angle and height to ensure that the upper surface of the metal sample is horizontal and can adapt to metal samples of different shapes and sizes, thereby improving the flexibility and accuracy of detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0017] Figure 2 is a schematic diagram of the structure of the base and the placement plate in the present utility model;

[0018] Figure 3 is a schematic diagram of the bottom structure of the placement plate in the present utility model;

[0019] Figure 4 is a schematic diagram of the internal structure of the upper mounting cover in the present utility model;

[0020] The meanings of the various reference numerals in the figure are as follows:

[0021] 1. Base; 2. Detector body; 20. Detection probe; 3. Upper mounting cover; 30. Driving lead screw; 31. Movable block; 32. Guide rod; 33. Second electric telescopic rod; 4. Servo motor; 5. Front baffle; 50. Fixed block; 51. Fixed bolt; 6. Placing plate; 60. Hemispherical cover; 61. Fixed seat; 62. First electric telescopic rod; 63. Universal joint; 64. Movable ball; 65. Connecting rod. Detailed implementation manner

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] Please refer to Figures 1-4 , the present invention provides a technical solution:

[0024] The metal defect detector based on ultrasonic waves includes a base 1. There is an upper mounting cover 3 above the base 1. A detector body 2 is fixedly installed at the top of the upper mounting cover 3. The detection probe 20 of the detector body 2 is located inside the upper mounting cover 3. And a driving mechanism for driving the detection probe 20 to move left and right and up and down is installed inside the upper mounting cover 3. A placing plate 6 is provided inside the base 1. A first electric telescopic rod 62 is provided near each of the four corners below the placing plate 6. The bottom of the first electric telescopic rod 62 is hingedly installed on the inner wall of the bottom of the base 1 through a universal joint 63. The output shaft of the first electric telescopic rod 62 is hinged to the bottom of the placing plate 6 through a universal joint 63. The detection probe 20 of the detector body 2 of this device is located inside the upper mounting cover 3. And a driving mechanism for driving the detection probe 20 to move left and right and up and down is installed inside the upper mounting cover 3. A placing plate 6 is provided inside the base 1. First electric telescopic rods 62 are provided near each of the four corners below the placing plate 6. These telescopic rods are connected to the base 1 and the placing plate 6 through universal joints 63, so that the placing plate 6 can adjust the angle and height to ensure that the upper surface of the metal sample is horizontal and can adapt to metal samples of different shapes and sizes, thereby improving the flexibility and accuracy of detection.

[0025] Preferably in this embodiment, a hemispherical cover 60 is fixedly installed at the center of the bottom of the placement plate 6. An active ball 64 is movably installed inside the hemispherical cover 60. A fixed seat 61 is fixedly connected to the center of the bottom of the active ball 64 through a connecting rod 65. The fixed seat 61 is fixed to the center of the bottom of the base 1 by bolts. A hemispherical cover 60, an active ball 64, and a fixed seat 61 connected by a connecting rod 65 are added at the center of the bottom of the placement plate 6. This design makes the placement plate 6 more stable when adjusting the angle, and at the same time can keep the distance between the detection probe 20 and the metal sample relatively constant, further improving the accuracy of detection.

[0026] Preferably in this embodiment, when the piston rods of the four first electric telescopic rods 62 extend to half, the placement plate 6 is horizontal. This design ensures the stability of the placement plate 6 in the initial state, facilitating the placement and fixation of the metal sample.

[0027] Preferably in this embodiment, an opening is provided on the front side of the upper mounting cover 3, and a front baffle 5 is hinged to the bottom of the opening. This makes it more convenient to place and remove the metal sample, and at the same time the front baffle 5 can also provide necessary shielding during the detection process, reducing external interference.

[0028] Preferably in this embodiment, a fixed block 50 is fixedly connected to the outer wall of the front baffle 5 near the top. The fixed block 50 is fixedly connected to the outer wall of the front side of the upper mounting cover 3 through a fixing bolt 51. This design enhances the stability of the front baffle 5, ensuring that it will not accidentally open during the detection process.

[0029] Preferably in this embodiment, the driving mechanism includes a movable block 31 that can move left and right. Two second electric telescopic rods 33 are symmetrically and fixedly installed at the bottom of the movable block 31. The piston rods of the two second electric telescopic rods 33 are both fixedly connected to the detection probe 20. This design enables the detection probe 20 to move precisely in the horizontal and vertical directions, thereby achieving a comprehensive detection of the metal sample.

[0030] Preferably in this embodiment, two driving lead screws 30 are symmetrically and rotatably installed near the top of the upper mounting cover 3. Both of the two driving lead screws 30 are threadedly connected to the movable block 31. Two servo motors 4 are symmetrically and fixedly installed on the outer wall of the upper mounting cover 3. The output shafts of the two servo motors 4 are respectively coaxially fixed to the two driving lead screws 30. This design provides the power source for the movement of the detection probe 20, making the detection process more automated and precise.

[0031] Preferably in this embodiment, two guide rods 32 that both pass through the movable block 31 are symmetrically and fixedly installed near the top of the inner wall of the upper mounting cover 3. This design ensures the stability of the movable block 31 during the movement process, preventing it from shifting or shaking, thereby further improving the accuracy of detection.

[0032] When the ultrasonic-based metal defect detector of the present utility model is in use, it includes the following steps:

[0033] Preparation stage: First, place the metal sample to be detected on the placement plate 6 inside the base 1. By adjusting the lengths of the four first electric telescopic rods 62, the angle and height of the placement plate 6 can be changed to ensure that the upper surface of the metal sample is in a horizontal state and can accommodate metal samples of different shapes and sizes. When the piston rods of the four first electric telescopic rods 62 extend to half, the placement plate 6 is in a preset horizontal state, facilitating the placement of the metal sample.

[0034] Detection stage: After placing the metal sample, close the front baffle 5 and fix it to the upper mounting cover 3 through the fixing block 50 and the fixing bolt 51 to reduce external interference. Start the detector body 2, and the detection probe 20 starts to work. The driving mechanism will drive the detection probe 20 to move left and right and up and down inside the upper mounting cover 3 to comprehensively detect the metal sample. The specific working principle of the driving mechanism is as follows: Two servo motors 4 respectively drive two driving lead screws 30 to rotate, thereby driving the movable block 31 threadedly connected to the driving lead screw 30 to move left and right. At the same time, two second electric telescopic rods 33 symmetrically and fixedly installed at the bottom of the movable block 31 will drive the detection probe 20 to move up and down. During the detection process, two guide rods 32 symmetrically and fixedly installed near the top of the inner wall of the upper mounting cover 3 will ensure the stability of the movable block 31 during movement and prevent it from shifting or shaking.

[0035] Completion of detection: After the detection is completed, turn off the detector body 2, open the front baffle 5, and take out the metal sample. According to needs, the angle and height of the placement plate 6 can be adjusted for the next detection.

[0036] In summary, the ultrasonic-based metal defect detector of the present utility model realizes the comprehensive, accurate, and flexible detection of metal samples through designs such as adjusting the angle and height of the placement plate 6, driving the detection probe 20 to move left and right and up and down, and providing a stable front baffle 5 and guide rods 32.

[0037] The above shows and describes the basic principles, main features, and advantages of the present utility model. Those skilled in the art of this industry should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present utility model and are not used to limit the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. Ultrasonic metal defect detector, characterized by: The invention comprises a base (1), an upper mounting cover (3) is provided above the base (1), a detector body (2) is fixedly mounted on the top of the upper mounting cover (3), a detection probe (20) of the detector body (2) is located in the upper mounting cover (3), and a driving mechanism for driving the detection probe (20) to move left and right and up and down is installed in the upper mounting cover (3), a placement plate (6) is provided in the base (1), a first electric telescopic rod (62) is provided below the placement plate (6) near the four corners, the bottom of the first electric telescopic rod (62) is hingedly mounted on the inner wall of the bottom of the base (1) through a universal joint (63), and the output shaft of the first electric telescopic rod (62) is hingedly connected to the bottom of the placement plate (6) through a universal joint (63).

2. The ultrasonic-based metal defect detector according to claim 1, characterized in that: A hemispherical cover (60) is fixedly mounted at the bottom center of the placement plate (6), a movable ball (64) is movably mounted inside the hemispherical cover (60), a fixed seat (61) is fixedly connected to the bottom center of the movable ball (64) via a connecting rod (65), and the fixed seat (61) is fixed to the bottom center of the base (1) via bolts.

3. The ultrasonic-based metal defect detector according to claim 2, characterized in that: When the piston rods of the four first electric telescopic rods (62) are halfway extended, the placement plate (6) is horizontal.

4. The ultrasonic-based metal defect detector according to claim 3, characterized in that: The upper mounting cover (3) is provided with an opening on the front side, and a front baffle (5) is hingedly connected to the bottom of the opening.

5. The ultrasonic-based metal defect detector according to claim 4, characterized in that: A fixing block (50) is fixedly connected to the outer wall of the front baffle plate (5) near the top, and the fixing block (50) is fixedly connected to the front outer wall of the upper mounting cover (3) via fixing bolts (51).

6. The ultrasonic-based metal defect detector according to claim 5, characterized in that: The driving mechanism comprises a movable block (31) movable leftward and rightward, two second electric telescopic rods (33) being symmetrically fixedly mounted on the bottom of the movable block (31), and piston rods of the two second electric telescopic rods (33) being fixedly connected to the detection probe (20).

7. The ultrasonic-based metal defect detector according to claim 6, characterized in that: Two drive screws (30) are symmetrically rotatably mounted near the top of the upper mounting cover (3), and the two drive screws (30) are both threadedly connected to the movable block (31). Two servo motors (4) are symmetrically fixedly mounted on the outer wall of the upper mounting cover (3), and the output shafts of the two servo motors (4) are coaxially fixed to the two drive screws (30), respectively.

8. The ultrasonic-based metal defect detector according to claim 7, characterized in that: Two guide rods (32) are symmetrically fixedly mounted on the inner wall of the upper mounting cover (3) near the top and both pass through the movable block (31).

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