Device for automatically removing bubbles on surface of workpiece subjected to water immersion flaw detection

Abstract

The utility model provides a device for automatically removing bubbles on the surface of a water immersion flaw detection workpiece, which comprises a probe support frame and a bubble removing mechanism, a mounting plate is fixedly mounted on one side of the probe support frame, the bubble removing mechanism is movably mounted on the mounting plate, and the bubble removing mechanism comprises a centering mechanism and a cleaning mechanism. The cleaning mechanism is slidably mounted on the mounting plate, a through groove is formed in the mounting plate, the centering mechanisms are slidably mounted on the inner walls of the two sides of the through groove and arranged on the two sides of the cleaning mechanism, the cleaning mechanism comprises a connecting rod, an adjustable grabbing clamp and a cleaning brush, the adjustable grabbing clamp is arranged at the bottom end of the connecting rod, and the adjustable grabbing clamp is detachably connected with the cleaning brush. According to the device, by adjusting the position of the cleaning brush, the bubbles adsorbed on the surface of the workpiece are effectively removed, meanwhile, damage to the surface of the workpiece is avoided, and the device is simple in structure, convenient and fast to operate and suitable for workpieces of various sizes and shapes.

Description

Technical Field

[0001] The utility model relates to the technical field of ultrasonic water immersion flaw detection, in particular to a device for automatically removing bubbles on the surface of a workpiece for water immersion flaw detection. Background Art

[0002] With the continuous advancement of materials science and manufacturing technology, the quality requirements for components are becoming increasingly stringent. Water immersion ultrasonic testing (WIT) plays an increasingly important role in ensuring product quality, improving production efficiency, and reducing safety risks. WIT involves immersing the workpiece in water, using water as a coupling agent. The probe and the steel workpiece are kept separate, and ultrasonic waves emitted by the probe are transmitted through the water into the steel to detect flaws. WIT is used to test the purity of steel, primarily for inclusion detection. When using high-frequency, high-sensitivity ultrasonic WIT, the roughness of the workpiece surface caused by machining prevents the liquid water from spreading across the solid surface at the interface between the solid and liquid water, leading to the formation of bubbles. If bubbles adhere to the workpiece surface, they can create a false defect wave before the interface wave during testing, causing the interface wave to contact the detection gate and appear on the C-scan image, affecting the accuracy of the test results. After the inspection, manual judgment is required to determine whether the defect is real or fake, which increases the workload, consumes manpower and time. Even if the abnormality is determined to be a bubble, it affects the overall appearance of the spectrum. Therefore, the bubbles on the surface of the workpiece must be removed, and the removal process must not affect the test results and must not damage the workpiece and the flaw detection equipment.

[0003] The existing technology is to manually remove bubbles on the workpiece surface or add defoaming agents to water. The disadvantage of manually removing bubbles on the workpiece surface is that the operator needs to wipe the entire surface of the workpiece, and the places that are difficult for the operator to touch are easily overlooked. The second disadvantage is that new bubbles will be generated during the flaw detection process, affecting the test results. The addition of defoaming agents is affected by concentration, temperature and pH value, and sometimes the effect is not good.

[0004] The purpose of the utility model is to provide a device for automatically removing bubbles from the surface of a workpiece undergoing water immersion inspection, so as to solve the problems mentioned in the above background technology. Utility Model Content

[0005] To achieve the above-mentioned purpose, the utility model provides a device for automatically removing bubbles on the surface of a workpiece for water immersion inspection, comprising a probe support frame and a bubble removal mechanism, a mounting plate fixedly mounted on one side of the probe support frame, and the bubble removal mechanism movably mounted on the mounting plate, the bubble removal mechanism comprising a centering mechanism and a cleaning mechanism, the cleaning mechanism being slidably mounted on the mounting plate, a through groove being provided on the mounting plate, and the centering mechanism being slidably mounted on the inner walls of both sides of the through groove, the centering mechanism being arranged on both sides of the cleaning mechanism, the cleaning mechanism comprising a connecting rod, an adjustable gripping clamp, and a cleaning brush, the adjustable gripping clamp being arranged at the bottom end of the connecting rod, the adjustable gripping clamp being detachably connected to the cleaning brush, and the cleaning brush being used to remove bubbles on the surface of the inspected workpiece.

[0006] As a further improvement of the present invention, the centering mechanism includes a ball screw and a ball nut symmetrically arranged and installed on the ball screw. Grooves are provided on the inner walls on both sides of the through groove. The ball screws are rotatably installed in the grooves. The symmetrical ball nuts move relative to each other on the ball screw. A slider is fixedly connected between the two groups of ball nuts in the two grooves. The slider is slidably provided with a centering plate. The centering plate is located at both ends of the cleaning brush. The ball screw is connected to a driving member, which is installed on the outer wall of the end of the probe support frame. A compression spring is connected between the slider and the cleaning mechanism.

[0007] As a further improvement of the present invention, the driving component includes a driving motor, a driving wheel, and a transmission wheel. The output end of the driving motor is fixedly connected to the end of the ball screw on one side, the driving wheel is installed between the driving motor and the ball screw, and the transmission wheel is fixedly connected to the end of the ball screw on the other side and is arranged on the outer wall of the probe support frame. The driving wheel and the transmission wheel are connected and transmitted by a belt.

[0008] As a further improvement of the present invention, the top of the centering plate passes through the top of the slider and is fixedly connected with a lifting block. A plurality of threaded holes are provided on one side of the centering plate. A limiting pin is rotatably installed on the outer wall of the slider close to the threaded hole. The end of the limiting pin is provided with a thread matching the threaded hole. The bottom of the centering plate is provided with a rubber pad.

[0009] As a further improvement of the present invention, the top of the connecting rod is movably connected with a threaded rod, and a positioning block is slidably installed on the mounting plate, and the outer wall of the positioning block is screwed with a locking nut through a thread, and is locked and fixed to the mounting plate through the locking nut. A fixing nut is provided at the center of the positioning block, and the threaded rod and the fixing nut are threadedly connected, and the top of the threaded rod extends out of the fixing nut and is fixedly connected to a control handle. The compression spring is arranged between the outer walls of both ends of the positioning block and the slider, and a limiting groove is provided at the top of the connecting rod, and the bottom of the threaded rod is rotatably installed in the limiting groove and does not disengage from the limiting groove. A locking nut 2 for locking the rotation of the threaded rod is provided on the outer wall of the connecting rod.

[0010] As a further improvement of the present invention, a first cavity and a second cavity are provided inside the connecting rod, and one end of the adjustable clamp connected to the connecting rod is connected to a movable rod, which is installed inside the connecting rod and is connected to an electric push rod through the first cavity and the second cavity in sequence. A control spring is provided on the outside of the movable rod, and the two ends of the control spring are respectively fixedly connected to the bottom of the movable rod and the top wall of the first cavity. A limit block is provided at the bottom of the movable rod, and the adjustable clamp is symmetrically fixedly installed on both sides of the limit block. A positioning plate is symmetrically provided on the outer wall of the bottom end of the connecting rod, and the end of the adjustable clamp close to the limit block is rotatably installed in the positioning plate through a rotating shaft.

[0011] As a further improvement of the present invention, an arc-shaped grab block is fixedly installed on the outer wall of the adjustable grab clamp, and an arc-shaped groove matching the adjustable grab clamp is opened on the inner wall of the arc-shaped grab block. The adjustable grab clamp is fixed in the arc-shaped groove, and the arc-shaped grab block clamps and fixes the cleaning brush.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] The utility model is provided with a centering mechanism. After the cleaning brush is installed in the cleaning mechanism, the driving motor drives the two ball screws to rotate, so that the slider connected thereto moves toward the positioning block. At this time, the centering plate moves in the direction of the detection workpiece until the centering plate fits the two ends of the detection workpiece. At this time, the positioning block connected to the slider by the compression spring is pushed to the center of the two sliders, so that the cleaning brush of the cleaning mechanism connected to the positioning block can be aligned with the surface of the detection workpiece to prevent the cleaning brush from deviating and missing the bubbles on the surface of the detection workpiece. Furthermore, a threaded rod is provided at the top of the connecting rod connected to the cleaning brush, and the distance between the cleaning brush and the detection workpiece can be adjusted by the threaded rod. At the same time, the electric push rod is used to push the adjustable clamp to replace the cleaning brush of the passing size, which is convenient for accurately adjusting the position of the cleaning brush according to the different sizes of the detection workpiece, so that it is in close contact with the surface of the detection workpiece, thereby improving the bubble cleaning quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the centering mechanism and cleaning mechanism of the present invention;

[0016] Figure 3 For this utility model Figure 2 Schematic diagram of the internal structure;

[0017] Figure 4 This is a schematic diagram of the centering mechanism structure of the present utility model;

[0018] Figure 5 It is a front view of the utility model.

[0019] In the figure: 1, probe support frame; 11, mounting plate; 12, through slot; 13, groove;

[0020] 2. Centering mechanism; 21. Centering plate; 22. Threaded hole; 23. Stop pin; 24. Drive motor; 25. Drive wheel; 26. Transmission wheel; 27. Ball screw; 28. Slider; 29. ​​Compression spring; 210. Rubber pad;

[0021] 3. Cleaning mechanism; 31. Connecting rod; 32. Adjustable gripper; 33. Cleaning brush; 34. Movable rod; 35. First cavity; 36. Second cavity; 37. Control spring; 38. Electric push rod; 39. Limit block; 310. Positioning plate; 311. Arc-shaped gripper;

[0022] 4. Threaded rod; 41. Positioning block; 42. Locking nut 1; 43. Fixing nut; 44. Control handle; 45. Locking nut 2;

[0023] 5. Check the workpiece. DETAILED DESCRIPTION

[0024] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings, but the present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the content disclosed in the present invention more thorough and comprehensive.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are for the purpose of describing specific embodiments only and are not intended to limit this invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0026] The present invention will be described in further detail below with reference to the accompanying drawings.

[0027] Example 1:

[0028] See also Figure 1-5 The utility model provides a device for automatically removing bubbles on the surface of a workpiece for water immersion inspection, comprising a probe support frame 1 and a bubble removal mechanism. A mounting plate 11 is fixedly mounted on one side of the probe support frame 1, and the bubble removal mechanism is movably mounted on the mounting plate 11. The bubble removal mechanism comprises a centering mechanism 2 and a cleaning mechanism 3, which is slidably mounted on the mounting plate 11. A through slot 12 is provided on the mounting plate 11, and the centering mechanism 2 is slidably mounted on the inner walls of both sides of the through slot 12. The centering mechanism 2 is arranged on both sides of the cleaning mechanism 3. The cleaning mechanism 3 comprises a connecting rod 31, an adjustable gripping clamp 32, and a cleaning brush 33. The adjustable gripping clamp 32 is arranged at the bottom end of the connecting rod 31, and the adjustable gripping clamp 31 is detachably connected to the cleaning brush 33. The cleaning brush 33 is used to remove bubbles on the surface of the inspected workpiece 5.

[0029] The centering mechanism 2 includes a ball screw 27 and a ball nut symmetrically arranged and installed on the ball screw 27. Grooves 13 are provided on the inner walls on both sides of the through groove 12. The ball screws 27 are rotatably installed in the grooves 13. The symmetrical ball nuts move relatively on the ball screw 27. A slider 28 is fixedly connected between the two groups of ball nuts in the two grooves 13. The slider 28 is slidably provided with a centering plate 21. The centering plate 21 is located at both ends of the cleaning brush 33. The ball screw 27 is connected to a driving member, which is installed on the outer wall of the end of the probe support frame 1. A compression spring 29 is connected between the slider 28 and the cleaning mechanism 3.

[0030] The driving component includes a driving motor 24, a driving wheel 25, and a transmission wheel 26. The output end of the driving motor 24 is fixedly connected to the end of the ball screw 27 on one side, and the driving wheel 25 is installed between the driving motor 24 and the ball screw 27. The transmission wheel 26 is fixedly connected to the end of the ball screw 27 on the other side and is arranged on the outer wall of the probe support frame 1. The driving wheel 25 and the transmission wheel 26 are connected and transmitted by a belt. By arranging the driving wheel 25 and the transmission wheel 26, the first motor can simultaneously drive the two ball screws 27 to rotate synchronously, and a threaded portion with equal ends but opposite threads is provided on the ball screw 27, and two ball nuts are installed on the opposite threaded portions, thereby realizing relative movement of the two ball nuts.

[0031] The top of the centering plate 21 passes through the top of the slider 28 and is fixedly connected to a lifting block. Several threaded holes 22 are provided on one side of the centering plate 21. A limit pin 23 is rotatably installed on the outer wall of the slider 28 near the threaded hole 22. The end of the limit pin 23 is provided with a thread matching the threaded hole 22. A rubber pad 210 is provided at the bottom of the centering plate 21. By pulling the lifting block, the centering plate 21 can be separated from the outside of the detection workpiece 5 after the centering is completed, so as not to affect the bubble cleaning and detection of the detection workpiece 5. Several threaded holes 22 are provided on the outer wall of the centering plate 21, which can be locked and fixed by the thread at the end of the limit pin 23 and the threaded hole 22 to prevent the centering plate 21 from moving. In this embodiment, when the centering plate 21 moves downward, in order to prevent the bottom of the centering plate 21 from damaging the detection workpiece 5, a rubber pad 210 is provided at its bottom to help protect the detection workpiece 5 and prevent damage to the detection workpiece 5.

[0032] When in use, first select the cleaning brush 33 of the corresponding size according to the size of the inspection workpiece 5, then clamp it and fix it with the adjustable gripper 32, then push the centering plate 21 downward until the lifting block on the top of the centering plate 21 fits with the top of the slider 28, and then lock and fix the centering plate 21 with the limit pin 23, and then drive the two ball screws 27 to rotate through the driving motor 24, so that the two ball nuts on each ball screw 27 move relative to each other, and at the same time drive the slider 28 connected thereto to follow and move until the centering plate 21 on the slider 28 fits with the two ends of the inspection workpiece 5, and then by rotating the threaded rod 4, the cleaning brush 33 moves toward the top surface of the inspection workpiece 5 until it contacts the top surface of the inspection workpiece 5, and then the limit pin 23 is rotated to engage After touching the limit of the centering plate 21, pull the centering plate 21 upward until it leaves the detection workpiece 5 and does not affect the detection position, and then lock and fix it with the threaded hole 22 on the outer wall of the centering plate 21 through the limit pin 23, and then start bubble removal and detection. In this embodiment, the centering mechanism 2 is set to facilitate the centering of the cleaning brush 33 before it contacts the detection workpiece 5, so as to avoid the displacement of the cleaning brush 33 and the outer wall of the detection workpiece 5 when the cleaning brush 33 is installed, which causes some bubbles on the detection workpiece 5 to be unable to be effectively cleaned, thereby improving the accuracy and efficiency of bubble removal. By setting the centering mechanism 2, it can be flexibly adjusted according to workpieces of different sizes and shapes, so that the debubble process is more adaptable to various detection needs.

[0033] Example 2:

[0034] See also Figure 1-3The top of the connecting rod 31 is movably connected with a threaded rod 4, and a positioning block 41 is slidably installed on the mounting plate 11, and the outer wall of the positioning block 41 is screwed with a locking nut 42 through a thread, and is locked and fixed to the mounting plate 11 through the locking nut 42. A fixing nut 43 is provided at the center of the positioning block 41, and the threaded rod 4 is connected to the fixing nut 43 through a thread, and the top of the threaded rod 4 extends the fixing nut 43 and is fixedly connected to a control handle 44. The compression spring 29 is arranged between the outer walls of both ends of the positioning block 41 and the slider 28. A limiting groove is provided on the top of the connecting rod 31, and the bottom of the threaded rod 4 is rotatably installed in the limiting groove and does not disengage from the limiting groove. A fixing nut 43 is provided on the outer wall of the connecting rod 31 for locking the threaded rod 4. The locking nut 2 45 of the rod 4 rotates. When the centering mechanism 2 is adjusted, the locking nut 1 42 on the outer wall of the positioning block 41 is loosened to release the restriction on the positioning block 41, so that it can drive the threaded rod 4 to slide on the mounting plate 11. When the centering is completed, the locking nut 1 42 is used to lock and fix the positioning block 41 to prevent the positioning block 41 from sliding, which helps the threaded rod 4 to not affect the positioning block 41 when rotating, so that it can always maintain the state of centering completion. In this embodiment, a limit groove is provided at the top of the connecting rod 31. When the threaded rod 4 rotates, the bottom is in the limit groove. The bottom of the threaded rod 4 is provided with a fixed block that limits the upper and lower positions of the limit groove. The fixed block is limited by the inner top wall of the limit groove, so that the threaded rod 4 can rotate without disengaging from the limit groove of the connecting rod 31, thereby driving the connecting rod 31 to move up and down.

[0035] A first cavity 35 and a second cavity 36 are provided inside the connecting rod 31, and one end of the adjustable clamp 32 connected to the connecting rod 31 is connected to a movable rod 34, which is installed inside the connecting rod 31 and is connected to an electric push rod 38 through the first cavity 35 and the second cavity 36 in sequence. A control spring 37 is sleeved on the outside of the movable rod 34, and the two ends of the control spring 37 are respectively fixedly connected to the bottom of the movable rod 34 and the top wall of the first cavity 35. A limit block 39 is provided at the bottom of the movable rod 34, and the adjustable clamp 32 is symmetrically fixedly installed on both sides of the limit block 39. A positioning plate 310 is symmetrically provided on the outer wall of the bottom end of the connecting rod 31, and the end of the adjustable clamp 32 close to the limit block 39 is rotatably installed in the positioning plate 310 through a rotating shaft. When the electric push rod 38 pulls the movable rod 34, the control spring 37 provided on the movable rod 34 is compressed, and the limit block 39 at the bottom of the movable rod 34 drives the adjustable clamp 32 to rotate around the axis and shrink toward the opposite side of the two adjustable clamps 32 for clamping and fixing, thereby achieving the clamping and fixing of the cleaning brush 33. When the electric push rod 38 pushes the movable rod 34 to move downward, the control spring 37 rebounds and the adjustable clamp 32 moves around the axis in the opposite direction, thereby releasing the restriction on the cleaning brush 33, which is conducive to replacing cleaning brushes 33 of different specifications.

[0036] An arc-shaped grab block 311 is fixedly installed on the outer wall of the adjustable grab clamp 32, and an arc-shaped groove matching the adjustable grab clamp 32 is opened on the inner wall of the arc-shaped grab block 311. The adjustable grab clamp 32 is fixedly installed in the arc-shaped groove, and the arc-shaped grab block 311 clamps and fixes the cleaning brush 33. By fixing the arc-shaped grab block 311 on the adjustable grab clamp 32, it is beneficial to expand the grabbing area and improve the clamping stability.

[0037] When in use, first select the cleaning brush 33 of the corresponding size according to the size of the inspection workpiece 5, and then push the movable rod 34 through the electric push rod 38, so that the limit block 39 at the bottom of the movable rod 34 pushes the adjustable gripper 32 to open to both sides, and then place the adjustable gripper 32 on the top of the cleaning brush 33, and then pull the movable rod 34 upward by electric pushing, so that the gripper rotates around the rotating shaft and shrinks toward the cleaning brush 33 until the cleaning brush 33 is grasped and fixed, and then push the centering plate 21 downward until the lifting block on the top of the centering plate 21 is in contact with the top of the slider 28, and then perform centering through the centering mechanism 2. After the centering is completed, rotate the threaded rod 4 to make the cleaning brush 33 move toward the top surface of the inspection workpiece 5 until it contacts the top surface of the inspection workpiece 5. Cleaning claws of different sizes can be replaced at will through the adjustable gripper 32, which is convenient for adapting to inspection workpieces 5 of different sizes.

[0038] The above description of the present invention is illustrative in combination with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as such non-substantial improvements are made by adopting the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the scope of protection of the present invention.

Claims

1. A device for automatically removing bubbles from the surface of a workpiece undergoing water immersion inspection, characterized in that: The invention comprises a probe support frame (1) and a bubble removal mechanism, wherein a mounting plate (11) is fixedly mounted on one side of the probe support frame (1), and the bubble removal mechanism is movably mounted on the mounting plate (11). The bubble removal mechanism comprises a centering mechanism (2) and a cleaning mechanism (3), and the cleaning mechanism (3) is slidably mounted on the mounting plate (11). The mounting plate (11) is provided with a through groove (12), and the centering mechanism (2) is slidably mounted on the inner walls of both sides of the through groove (12). The centering mechanism (2) is arranged on both sides of the cleaning mechanism (3). The cleaning mechanism (3) comprises a connecting rod (31), an adjustable gripping clamp (32), and a cleaning brush (33). The adjustable gripping clamp (32) is arranged at the bottom end of the connecting rod (31), and the adjustable gripping clamp (32) is detachably connected to the cleaning brush (33). The cleaning brush (33) is used to remove bubbles on the surface of the detection workpiece (5).

2. The device for automatically removing bubbles from the surface of a workpiece undergoing water immersion inspection according to claim 1, characterized in that: The centering mechanism (2) includes a ball screw (27) and a ball nut symmetrically arranged and mounted on the ball screw (27); grooves (13) are provided on the inner walls of both sides of the through groove (12); the ball screws (27) are rotatably mounted in the grooves (13); the symmetrical ball nuts move relatively on the ball screw (27); a slider (28) is fixedly connected between the two groups of ball nuts in the two grooves (13); the slider (28) is slidably provided with a centering plate (21); the centering plate (21) is located at both ends of the cleaning brush (33); the ball screw (27) is connected to a driving member, and the driving member is mounted on the outer wall of the end of the probe support frame (1); a compression spring (29) is connected between the slider (28) and the cleaning mechanism (3).

3. The device for automatically removing bubbles from the surface of a workpiece undergoing water immersion inspection according to claim 2, characterized in that: The driving member comprises a driving motor (24), a driving wheel (25), and a transmission wheel (26); the output end of the driving motor (24) is fixedly connected to the end of the ball screw (27) on one side; the driving wheel (25) is installed between the driving motor (24) and the ball screw (27); the transmission wheel (26) is fixedly connected to the end of the ball screw (27) on the other side and is arranged on the outer wall of the probe support frame (1); the driving wheel (25) and the transmission wheel (26) are connected and transmitted by a belt.

4. The device for automatically removing bubbles from the surface of a workpiece undergoing water immersion inspection according to claim 2, characterized in that: The top of the centering plate (21) passes through the top of the slider (28) and is fixedly connected to a lifting block. A plurality of threaded holes (22) are provided on one side of the centering plate (21). A limiting pin (23) is rotatably installed on the outer wall of the slider (28) near the threaded hole (22). The end of the limiting pin (23) is provided with a thread matching the threaded hole (22). The bottom of the centering plate (21) is provided with a rubber pad (210).

5. The device for automatically removing bubbles from the surface of a workpiece undergoing water immersion inspection according to claim 2, characterized in that: The top of the connecting rod (31) is movably connected to a threaded rod (4), and a positioning block (41) is slidably installed on the mounting plate (11), and the outer wall of the positioning block (41) is screwed with a locking nut (42) through a thread, and is locked and fixed to the mounting plate (11) through the locking nut (42). A fixing nut (43) is provided at the center of the positioning block (41), and the threaded rod (4) is connected to the fixing nut (43) through a thread, and the top of the threaded rod (4) extends from the fixing nut (43) and is fixedly connected to a control handle (44). The compression spring (29) is arranged between the outer walls of both ends of the positioning block (41) and the slider (28). A limiting groove is provided on the top of the connecting rod (31), and the bottom of the threaded rod (4) is rotatably installed in the limiting groove and does not separate from the limiting groove. A locking nut (45) for locking the rotation of the threaded rod (4) is provided on the outer wall of the connecting rod (31).

6. The device for automatically removing bubbles from the surface of a workpiece undergoing water immersion inspection according to claim 5, characterized in that: The connecting rod (31) is provided with a first cavity (35) and a second cavity (36). One end of the adjustable gripper (32) connected to the connecting rod (31) is connected to a movable rod (34). The movable rod (34) is installed inside the connecting rod (31) and is connected to an electric push rod (38) passing through the first cavity (35) and the second cavity (36) in sequence. A control spring (37) is sleeved on the outside of the movable rod (34). The control spring (37) is provided on the outside of the movable rod (34). 7) are fixedly connected to the bottom of the movable rod (34) and the top wall of the first cavity (35) respectively, a limit block (39) is provided at the bottom of the movable rod (34), and the adjustable gripping clamp (32) is symmetrically fixedly installed on both sides of the limit block (39), and a positioning plate (310) is symmetrically provided on the outer wall of the bottom end of the connecting rod (31), and one end of the adjustable gripping clamp (32) close to the limit block (39) is rotatably installed in the positioning plate (310) through a rotating shaft.

7. The device for automatically removing bubbles from the surface of a workpiece undergoing water immersion inspection according to claim 6, characterized in that: An arc-shaped grab block (311) is fixedly mounted on the outer wall of the adjustable grab clamp (32), an arc-shaped groove matching the adjustable grab clamp (32) is opened on the inner wall of the arc-shaped grab block (311), the adjustable grab clamp (32) is fixedly mounted in the arc-shaped groove, and the arc-shaped grab block (311) clamps and fixes the cleaning brush (33).

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