Clamping device, detection device and detection method for solid-coupled ultrasonic detection

Abstract

The present invention relates to a clamping device, a detection device and a detection method for solid-coupled ultrasonic detection, belonging to the technical field of ultrasonic detection. It includes a liquid storage unit assembly, and the liquid storage unit assembly includes at least two liquid storage units. At least one part to be measured is arranged between two adjacent liquid storage units, and a solid-coupled flexible layer is arranged on the contact surface between the liquid storage unit and the part to be measured; when the part to be measured is not clamped, at least one liquid storage unit is arranged obliquely; when the part to be measured is clamped, the two liquid storage units move towards each other and then abut against each other, and the obliquely arranged liquid storage unit returns to the upright position, and the two liquid storage units correspond to and are in close contact with each other, so as to clamp the part to be measured between the two liquid storage units. The part to be measured is closely attached to the solid-coupled flexible layer between the adjacent two liquid storage units, and the air between the part to be measured and the solid-coupled flexible layer is discharged to achieve a better detection effect.

Description

Technical Field

[0001] The present invention relates to the technical field of ultrasonic detection, in particular to a clamping device, a detection device and a detection method for solid-coupled ultrasonic detection. Background Art

[0002] Ultrasonic waves have good penetrability and directivity, can penetrate objects and reflect when encountering an interface, so as to accurately draw the internal structural details of the object or identify potential defect areas. For this reason, ultrasonic scanning technology, as a leader in "non-destructive testing", is widely used in many fields such as aerospace, automotive manufacturing, materials science and medical diagnosis, and has become an indispensable part of ensuring product quality and safety.

[0003] In actual operation, to ensure that ultrasonic waves can be efficiently and accurately transmitted into the part to be tested and clear reflection signals can be collected, the detection environment is crucial. Specifically, the part to be tested and the ultrasonic probe need to be placed in a liquid couplant reservoir filled with liquid couplant. The liquid couplant can effectively eliminate the hindrance of air to the propagation of ultrasonic waves (because the propagation speed of ultrasonic waves in air is much lower than that in liquids or solids, and the presence of bubbles at the ultrasonic scanning interface will have a greater impact on the scanning imaging), and also reduces the energy loss of ultrasonic waves at the medium interface through its good acoustic impedance matching characteristics, ensuring the clarity and accuracy of the scanning image.

[0004] However, the detection method of complete immersion in liquid couplant may cause damage or contamination to the part to be tested. In addition, during the operation of clamping the part to be tested, if the operation is improper, the liquid couplant is easily carried out, which not only increases the difficulty of cleaning, but also may contaminate the detection equipment.

[0005] Therefore, it is urgent to develop a clamping device, a detection device and a detection method for ultrasonic detection that do not directly contact the liquid couplant to solve the problem of damage and contamination of the part to be tested. Summary of the Invention

[0006] The applicant provides a clamping device, a detection device and a detection method for solid-coupled ultrasonic detection to avoid the direct contact between the sample to be tested and the liquid coupling medium during the ultrasonic detection process and achieve better detection effects.

[0007] The technical solution adopted by the present invention is as follows: A clamping device for solid-coupled ultrasonic detection includes a liquid reservoir unit assembly. The liquid reservoir unit assembly includes at least two liquid reservoir units. Among them, at least one part to be measured is arranged between two adjacent liquid reservoir units, and a solid-coupled flexible layer is arranged on the contact surface between the liquid reservoir unit and the part to be measured; when the part to be measured is not clamped, at least one liquid reservoir unit is arranged obliquely; when the part to be measured is clamped, the two liquid reservoir units move towards each other and abut against each other, and the obliquely arranged liquid reservoir unit returns to the upright position. The two liquid reservoir units correspond to each other and are in close contact to clamp the part to be measured between the two liquid reservoir units, and the solid-coupled flexible layer between the part to be measured and the adjacent two liquid reservoir units is closely attached.

[0008] As a further improvement of the above technical solution:

[0009] In one embodiment, when using two adjacent liquid reservoir units to clamp the part to be measured, the two liquid reservoir units at least include a relaxed state in which the part to be measured is not clamped and a clamping state in which the part to be measured is clamped. Among them, in the relaxed state, the part to be measured is not clamped by the two adjacent liquid reservoir units, and at least one surface of the solid-coupled flexible layer and the surface of the part to be measured are arranged at a first angle; in the clamping state, the part to be measured is clamped by the two adjacent liquid reservoir units, the part to be measured is closely attached to the solid-coupled flexible layer between the two adjacent liquid reservoir units, and the surfaces of the solid-coupled flexible layer and the part to be measured are both in a parallel and attached distribution; during the conversion process of the two adjacent liquid reservoir units from the relaxed state to the clamping state, the angle between the surface of the solid-coupled flexible layer and the surface of the part to be measured gradually decreases from the first angle until it reaches 0° in the clamping state.

[0010] In one embodiment, one of the two liquid reservoir units is inclined, and the inclined liquid reservoir unit is in an inclined state by cooperating with a rotating assembly;

[0011] Alternatively, both of the two liquid reservoir units are inclined, and each of the two liquid reservoir units is matched with a corresponding rotating assembly and the two liquid reservoir units are simultaneously in an inclined state.

[0012] In one embodiment, the rotating assembly is connected to the liquid reservoir unit through a rotating shaft to realize the rotation of the liquid reservoir unit during the inclined state and the return to the upright process.

[0013] In one embodiment, a motion assembly is assembled outside at least one liquid reservoir unit, and the motion assembly drives the connected liquid reservoir unit to move to achieve the opposite movement of the two liquid reservoir units for gradual fitting.

[0014] In one embodiment, when the two liquid reservoir units are driven by the motion assembly to move towards each other, a reference side wall of the solid coupling flexible layer on the two liquid reservoir units first contacts, or the solid coupling flexible layer on the two liquid reservoir units first contacts a reference side wall of the part to be measured; after the reference side wall contacts, the two liquid reservoir units are driven in a direction perpendicular to the reference side wall until the solid coupling flexible layer is in full contact with the part to be measured; the reference side wall is a side edge, bottom edge or top edge of the solid coupling flexible layer or the part to be measured.

[0015] In one embodiment, it further includes a guiding assembly arranged in the moving direction of the liquid reservoir unit; during the process of the two liquid reservoir units moving towards each other, the guiding assembly guides the moving liquid reservoir unit.

[0016] A solid coupling ultrasonic detection device includes a clamping device for solid coupling ultrasonic detection and a probe assembly.

[0017] In one embodiment, the probe assembly includes a probe and a displacement assembly arranged oppositely, the probe extends into the corresponding liquid reservoir unit and is located on both sides of the part to be measured; the displacement assembly is used to drive the probe to move up, down, left and right in a straight line direction.

[0018] A solid coupling ultrasonic detection method includes the following steps: attaching a solid coupling flexible layer on the opposite surfaces of the two liquid reservoir units, wherein at least one liquid reservoir unit is inclined, and the part to be measured is located between the two liquid reservoir units;

[0019] Driving the two liquid reservoir units to move towards each other until a side wall of the solid coupling flexible layer on the liquid reservoir unit first contacts, or until a side wall of the solid coupling flexible layer on the liquid reservoir unit first contacts the part to be measured;

[0020] Driving the two liquid reservoir units to continue moving towards each other, taking the contacted side wall as a reference, and continuing to approach along a direction perpendicular to the contacted side wall until the two liquid reservoir units correspond and are in close contact, wherein during the process of driving the two liquid reservoir units to be in close contact, the air between the solid coupling flexible layer and the part to be measured is discharged;

[0021] When the two liquid reservoir units clamp the part to be measured, a liquid coupling agent is added to the two liquid reservoir units, and the probe assembly extends into the liquid coupling agent in the liquid reservoir unit;

[0022] The probe assembly moves in the liquid coupling agent of the liquid reservoir unit and performs ultrasonic scanning on the part to be measured.

[0023] The beneficial effects of the present invention are as follows:

[0024] The clamping device for solid-coupled ultrasonic testing provided by the present invention is applied in ultrasonic testing. The part to be tested is tightly clamped between two liquid reservoir units, and a solid-coupled flexible layer is arranged on the contact surface between the liquid reservoir unit and the part to be tested. After the two liquid reservoir units move towards each other and during the process of abutting and returning to the correct position, the air between the part to be tested and the solid-coupled flexible layer is gradually discharged. At the same time, the probe assembly extends into the liquid coupling agent in the liquid reservoir unit for ultrasonic scanning, ensuring the ultrasonic testing effect, avoiding the influence of air on ultrasonic testing, and the part to be tested does not contact the liquid coupling agent, preventing damage and contamination. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention.

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for use in the description of the embodiments. Obviously, the following-described drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0028] Figure 2 It is a front view of the first liquid reservoir unit of the present invention.

[0029] Figure 3 For Figure 2 the rear view.

[0030] Figure 4 It is a structural diagram of the second liquid reservoir unit of the present invention.

[0031] Figure 5 It is a schematic diagram of the cooperation structure of the movement component and the guiding component of the present invention.

[0032] Figure 6 It is a structural diagram of the rotation component of the present invention.

[0033] Figure 7 It is a structural diagram of the front limiting member and the rear limiting member in the rotation component of the present invention.

[0034] Figure 8 It is a structural diagram of the probe assembly of the present invention.

[0035] Figure 9 It is a schematic diagram of the clamping device for solid-coupled ultrasonic testing of the present invention in a relaxed state.

[0036] Figure 10 This is a schematic structural diagram of the clamping device for solid-coupled ultrasonic testing of the present invention in the clamped state.

[0037] Figure 11 This is a schematic structural diagram of a part to be tested in one of the embodiments of the present invention.

[0038] Figure 12 This is the scanning pattern obtained by ultrasonic testing in Embodiment 3.

[0039] Figure 13 This is the scanning pattern obtained by ultrasonic testing in Comparative Example 1.

[0040] Wherein: 1. Probe assembly; 2. First liquid storage unit; 3. Second liquid storage unit; 4. Part to be tested; 5. Guide assembly; 6. Moving assembly; 7. Base plate; 8. Lead frame; 9. Rotating assembly;

[0041] 11. Probe mounting seat; 12. First ultrasonic probe; 13. Second ultrasonic probe;

[0042] 21. First liquid storage; 22. Linear bearing; 23. Force sensor; 24. First liquid storage base plate; 25. First solid-coupled flexible layer;

[0043] 31. Second liquid storage; 32. Second solid-coupled flexible layer; 33. Spring; 34. Rotating shaft; 35. Limit block; 36. Electrode clamping plate; 37. Charging and discharging electrode; 38. Edge-sealing pressing plate;

[0044] 41. Battery body; 42. Tab; 43. Edge-sealing;

[0045] 51. Guide shaft mounting seat; 52. Guide shaft; 53. Linear guide rail; 54. Guide rail slider;

[0046] 61. Motor; 62. Linear module; 63. Linear module slider; 64. Liquid storage pusher plate;

[0047] 91. Rotating shaft mounting seat; 92. Front limit member; 93. Rear limit member;

[0048] 921. Front limit mounting seat; 922. Front limit adjusting screw; 923. Elastic buffer member;

[0049] 931. Rear limit mounting seat; 932. Rear limit adjusting screw. Detailed implementation manners

[0050] The following will describe the detailed implementation manners of the present invention with reference to the accompanying drawings.

[0051] To make the above objects, features, and advantages of the present invention more apparent and understandable, the following provides a detailed description of the specific embodiments of the present invention with reference to the accompanying drawings. In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention.

[0052] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0053] In the present invention, unless otherwise clearly specified and defined, terms such as "mounted", "connected", "coupled", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0054] In the present invention, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over", and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath", and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0055] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation.

[0056] Embodiment 1:

[0057] As Figures 1 to 7 shown, in one embodiment, a clamping device for solid-coupled ultrasonic testing is provided, which includes a liquid reservoir unit assembly, and the liquid reservoir unit assembly includes two liquid reservoir units.

[0058] In this embodiment, the liquid reservoir unit assembly includes a first liquid reservoir unit 2 and a second liquid reservoir unit 3 which are oppositely arranged, and a part to be tested 4 is arranged between the first liquid reservoir unit 2 and the second liquid reservoir unit 3. The number of parts to be tested 4 is one or more, and the number of parts to be tested 4 is arranged according to actual requirements. Exemplarily, the number of parts to be tested 4 is one.

[0059] In this embodiment, solid-coupled flexible layers are respectively arranged on the contact surfaces of the first liquid reservoir unit 2 and the second liquid reservoir unit 3 with the part to be tested 4;

[0060] Further, a first solid-coupled flexible layer 25 is arranged on the contact surface of the first liquid reservoir unit 2 with the part to be tested 4, and a second solid-coupled flexible layer 32 is arranged on the contact surface of the second liquid reservoir unit 3 with the part to be tested 4.

[0061] In this embodiment, the part to be tested 4 is attached to the second solid-coupled flexible layer 32 of the second liquid reservoir unit 3. When the part to be tested 4 is not clamped, the second liquid reservoir unit 3 is inclined; when the part to be tested 4 is clamped, the first liquid reservoir unit 2 and the second liquid reservoir unit 3 move towards each other and then abut against each other, and after the second liquid reservoir unit 3 is abutted by the first liquid reservoir unit 2, it returns to the normal position. The first liquid reservoir unit 2 and the second liquid reservoir unit 3 correspond to each other and are in close contact, so as to clamp the part to be tested 4 between the first liquid reservoir unit 2 and the second liquid reservoir unit 3, and the part to be tested 4 is in close contact with the first solid-coupled flexible layer 25;

[0062] Further, when using the first liquid reservoir unit 2 and the second liquid reservoir unit 3 to clamp the part to be tested 4, the first liquid reservoir unit 2 and the second liquid reservoir unit 3 include a relaxed state in which the part to be tested 4 is not clamped and a clamping state in which the part to be tested 4 is clamped, wherein,

[0063] As Figure 9As shown, when in the relaxed state, the part 4 to be measured is not clamped by the first liquid storage unit 2 and the second liquid storage unit 3, and the first solid-coupled flexible layer 25 is arranged at an angle α with respect to the surface of the part 4 to be measured;

[0064] As Figure 10 shown, when in the clamped state, the part 4 to be measured is clamped by the first liquid storage unit 2 and the second liquid storage unit 3, the part 4 to be measured is in close contact with the first solid-coupled flexible layer 25 and the second solid-coupled flexible layer 32, and is in a parallel contact distribution;

[0065] During the process of the first liquid storage unit 2 and the second liquid storage unit 3 transitioning from the relaxed state to the clamped state, the angle between the first solid-coupled flexible layer 25 and the surface of the part 4 to be measured gradually decreases from the angle α until it is 0° in the clamped state.

[0066] In this embodiment, the second liquid storage unit 3 is in an inclined state by cooperating with the rotating assembly 9. The rotating assembly 9 is connected to the second liquid storage unit 3 through a rotating shaft to achieve the rotation of the second liquid storage unit 3 during the inclined state and the process of returning to the upright position;

[0067] As Figures 5 to 7 shown, specifically, the structure of the rotating assembly 9 is as follows: it includes a rotating shaft mounting seat 91, and the rotating shaft mounting seat 91 is assembled with the rotating shafts 34 on both sides of the second liquid storage unit 3; front limit members 92 and rear limit members 93 are respectively arranged on the front and rear sides of the bottom limit block 35 of the second liquid storage unit 3; the structure of the front limit member 92 is: it includes a front limit mounting seat 921, and a front limit adjusting screw 922 is installed on the front limit mounting seat 921. The front limit adjusting screw 922 is used for the front part of the limit block 35 to reach the position. An elastic buffer 923 is arranged on one side of the front limit adjusting screw 922, and the elastic buffer 923 abuts against the front part of the limit block 35, and the elastic buffer 923 is compressed as the limit block 35 advances; the structure of the rear limit member 93 is: it includes a rear limit mounting seat 931, and a rear limit adjusting screw 932 is installed on the rear limit mounting seat 931. The rear limit adjusting screw 932 is used for the rear part of the limit block 35 to reach the position in the inclined state.

[0068] In this embodiment, the screw in the rear limit adjusting screw 932 can be replaced with other rear limit adjusting components such as bolts and screws, which can be selected according to needs.

[0069] Exemplarily, the structure of the elastic buffer 923 includes but is not limited to a buffer or a spring, and uses the elastic force to abut against the limit block 35 to tilt the second liquid storage unit 31.

[0070] In this embodiment, a motion assembly 6 is assembled outside the first liquid storage unit 2, and the motion assembly 6 drives the first liquid storage unit 2 to achieve the relative motion of gradual fitting between the first liquid storage unit 2 and the second liquid storage unit 3;

[0071] As Figures 5 to 7 shown, specifically, the structure of the moving component 6 is as follows: It includes a liquid reservoir push plate 64, and the liquid reservoir push plate 64 is installed on the linear module slider 63; the linear module slider 63 is driven by a motor 61 to slide along the length direction of the linear module 62 on the linear module 62 in a sliding fit; the linear module 62 is installed on the top surface of the bottom plate 7, and the motor 61 is installed on the bottom surface of the bottom plate 7; the first liquid reservoir 21 is connected to the liquid reservoir push plate 64.

[0072] In this embodiment, the motor 61 can be replaced by other power driving devices such as a cylinder or a hydraulic system, and can be selected according to needs.

[0073] In this embodiment, the first liquid reservoir unit 2 is driven by the moving component 6 to move in the opposite direction towards the second liquid reservoir unit 3. Among them, the first solid coupling flexible layer 25 and the second solid coupling flexible layer 32 first contact with a reference side wall; after the reference side wall contacts, the first liquid reservoir unit 2 and the second liquid reservoir unit 3 are driven to continue moving along the direction perpendicular to the reference side wall with this reference side wall as the reference until the first solid coupling flexible layer 25 and the second solid coupling flexible layer 32 are fully attached.

[0074] Specifically, in this embodiment, the reference side wall is the side edge, bottom edge or top edge of the first solid coupling flexible layer 25 and the second solid coupling flexible layer 32. In this embodiment Figures 5 to 7 exemplarily, the reference side wall is the bottom edge of the first solid coupling flexible layer 25 and the second solid coupling flexible layer 32.

[0075] In this embodiment, a guiding component 5 is further included, which is arranged in the moving direction of the first liquid reservoir unit 2; during the opposite movement of the first liquid reservoir unit 2 towards the second liquid reservoir unit 3, the first liquid reservoir unit 2 is guided by the guiding component 5.

[0076] Specifically, the cooperation structure between the first liquid reservoir unit 2 and the guiding component 5 is as follows: Linear bearings 22 are symmetrically distributed on both sides of the first liquid reservoir 21, and the linear bearings 22 are sleeved on the guiding shaft 52 of the guiding component 5 and move along the length direction of the guiding shaft 52; the first liquid reservoir bottom plate 24 is fixedly assembled with the guide rail slider 54 of the guiding component 5; the specific structure of the guiding component 5 is as follows: It includes a guiding shaft mounting seat 51 and a linear guide rail 53. The guiding shaft 52 is assembled on the guiding shaft mounting seat 51, and the guide rail slider 54 is assembled on the linear guide rail 53; the linear bearings 22 are sleeved on the guiding shaft 52 and are in sliding fit along the length direction of the guiding shaft 52; the top of the guide rail slider 54 is fixedly connected to the first liquid reservoir bottom plate 24, and the bottom of the guide rail slider 54 is in sliding fit along the length direction of the linear guide rail 53; through the combined action of the guiding shaft 52 and the linear guide rail 53, the first liquid reservoir 21 is guided during the movement process.

[0077] In this embodiment, exemplarily, a force sensor 23 is provided at the contact end with the first liquid reservoir 21, and the force sensor 23 is used to detect the force condition of the part 4 to be measured under different pressure conditions.

[0078] In this embodiment, exemplarily, a wire holder 8 can also be assembled on the top side of the guide shaft mounting seat 61, and the wire holder 8 is used for guiding the electrical connection of the wire in the middle.

[0079] As Figure 1 and Figure 8 shown, Embodiment 1 also provides a solid-coupled ultrasonic detection device, including a probe assembly 1 and the clamping device for the solid-coupled ultrasonic detection described above.

[0080] Furthermore, the probe assembly 1 includes a first ultrasonic probe 12 and a second ultrasonic probe 13 arranged oppositely, and a displacement assembly, and the displacement assembly is used to mount the first ultrasonic probe 12 and the second ultrasonic probe 13 and realize displacement in the up, down, left, and right directions; further, the displacement assembly is a probe mounting seat 11.

[0081] Even further, the probe assembly 1 includes a seat body, a slide rail arranged on the seat body and extending in a straight line direction, and a slide table slidably arranged on the slide rail; a probe mounting seat 11 is arranged on the slide table, and a first ultrasonic probe 12 and a second ultrasonic probe 13 arranged oppositely are respectively configured on the probe mounting seat 11, and the first ultrasonic probe 12 and the second ultrasonic probe 13 respectively correspond to and match the first liquid reservoir unit 2 and the second liquid reservoir unit 3.

[0082] The probe mounting seat 11 drives the oppositely arranged first ultrasonic probe 12 and second ultrasonic probe 13 to extend into the corresponding first liquid reservoir unit 2 and second liquid reservoir unit 3 and be located on both sides of the part 4 to be measured, and drives the first ultrasonic probe 12 and the second ultrasonic probe 13 to move up, down, left, and right in a straight line direction and perform ultrasonic detection.

[0083] As Figures 9 to 11 shown, Embodiment 1 also provides a solid-coupled ultrasonic detection method, using the above solid-coupled ultrasonic detection device.

[0084] In this embodiment, the part 4 to be measured is a flat part, and the flat part includes but is not limited to any one of a battery, a wafer, a composite board, a car body panel, an engine cover, a car door, a circuit board, a heat sink, an electronic device housing, an aircraft door, or an aircraft partition; exemplarily, in this embodiment, the part 4 to be measured takes a battery as an example, and the structure of the battery includes a battery body 41, a tab 42 is arranged on the top of the battery body 41, and a sealing edge 43 higher than the position of the frame of the battery body 41 is also arranged on the back side of the tab 42.

[0085] Further, the mating structure between the second liquid reservoir unit 3 and the battery body 41 is as follows: The surface of the second liquid reservoir 31 in contact with the battery body 41 is the second solid-coupling flexible layer 32. The battery body 41 is attached to the second solid-coupling flexible layer 32, and the edge 43 of the battery body 41 is covered by an edge pressing plate 38. Springs 33 are connected to both sides of the edge pressing plate 38, and the other ends of the springs 33 are fixedly connected to the outer sidewall of the second liquid reservoir 31. One end of the spring 33 is fixed to the sidewall of the second liquid reservoir 31, and the other end hooks the edge pressing plate 38. The spring 33 can pull the edge pressing plate 38 to closely adhere to the surface of the second solid-coupling flexible layer 32. The tab 42 at the top of the battery body 41 is electrically connected to the charge and discharge electrode 37. The top of the charge and discharge electrode 37 is fixed by an electrode clamping plate 36, and the other end of the charge and discharge electrode 37 is electrically connected to the charge and discharge device.

[0086] The solid-coupling ultrasonic detection method in this embodiment includes the following steps:

[0087] Attach the first solid-coupling flexible layer 25 and the second solid-coupling flexible layer 32 to the opposite surfaces of the first liquid reservoir unit 2 and the second liquid reservoir unit 3 respectively. Among them, the second liquid reservoir unit 3 is inclined, and the battery body 41 is located between the first liquid reservoir unit 2 and the second liquid reservoir unit 3 and the battery body 41 is attached to the second solid-coupling flexible layer 32 of the second liquid reservoir unit 3;

[0088] Drive the two liquid reservoir units to move towards each other until one sidewall of the solid-coupling flexible layer on the liquid reservoir unit comes into contact first;

[0089] Drive the two liquid reservoir units to continue moving towards each other. Based on the contacting sidewall, continue to approach along the direction perpendicular to the contacting sidewall until the two liquid reservoir units are corresponding and in close contact. Among them, during the process of driving the two liquid reservoir units to be in close contact, the air between the solid-coupling flexible layer and the battery body 41 is discharged;

[0090] When the two liquid reservoir units clamp the battery body 41, add a liquid couplant to the two liquid reservoir units, ensure that the liquid level height exceeds the uppermost end of the battery body 41, and the probe assembly 1 extends into the liquid couplant in the liquid reservoir unit; The probe assembly 1 moves in the liquid couplant in the liquid reservoir unit and performs an ultrasonic scan on the battery body 41.

[0091] Further, it specifically includes the following steps:

[0092] Step 1: The battery body 41 is arranged close to the second solid coupling flexible layer 32 on the second liquid reservoir 31, and the edge sealing 43 and the pole ear 42 are pressed by the edge sealing pressing plate 38, the pole ear 42 is electrically connected to the charge and discharge electrode 37, and the other end of the charge and discharge electrode 37 is connected to the external charge and discharge equipment through a wire; the second liquid reservoir 31 is supported by the elastic buffer 923 of the rotating component 9 in an inclined state, the first liquid reservoir 21 is located on the linear module 62 of the moving component 6, and there is a gap between the first liquid reservoir 21 and the second liquid reservoir 31;

[0093] Step 2: The first liquid reservoir 21 is pushed by the liquid reservoir push plate 64 of the motion assembly 6, and the linear module slider 63 slides on the linear module 62 toward the second liquid reservoir 31 until the bottom edges of the first solid coupling flexible layer 25 and the second solid coupling flexible layer 32 contact each other. At this time, the inclination angle between the first solid coupling flexible layer 25 and the battery body 41 is the angle α.

[0094] Step 3: The first liquid reservoir 21 continues to be pushed by the liquid reservoir push plate 64, and the second liquid reservoir 31 gradually returns to the normal position through the rotating assembly 9, and the angle α between the first solid coupling flexible layer 25 and the battery body 41 gradually decreases until the second liquid reservoir 31 is supported by the front limit adjustment screw 922 of the front limit member 92. At this time, the first solid coupling flexible layer 25 and the battery body 41 are tightly fitted, and the angle α between the first solid coupling flexible layer 25 and the battery body 41 is 0°. The battery body 41 is completely clamped by the first solid coupling flexible layer 25 and the second solid coupling flexible layer 32 on both sides; in the process of the angle α becoming 0°, the surface air between the battery body 41 and the first solid coupling flexible layer 25 is discharged;

[0095] Step 4: Add liquid coupling agent to the first liquid reservoir 21 and the second liquid reservoir 31 to ensure that the liquid level exceeds the uppermost end of the battery body 41. The probe assembly 1 descends, and the first ultrasonic probe 12 and the second ultrasonic probe 13 enter the first liquid reservoir 21 and the second liquid reservoir 31 respectively. The first ultrasonic probe 12 and the second ultrasonic probe 13 are located on the side of the battery body 41 and move up, down, left and right in a straight line direction to perform ultrasonic detection scanning.

[0096] Embodiment 2:

[0097] The difference between the second embodiment and the first embodiment lies in that: the clamping device for solid-coupled ultrasonic detection provided in this embodiment includes a liquid reservoir unit assembly. The liquid reservoir unit assembly includes a plurality of liquid reservoir units, which are arranged side by side. A motion component 6 is assembled on the liquid reservoir unit at the left or right end. A limiting component is provided at the end of the liquid reservoir unit far from the motion component 6. Through the cooperation of the motion component 6 and the limiting component, the plurality of liquid reservoir units are closely attached to each other, and a battery body 41 is arranged between every two adjacent liquid reservoir units; the probe assembly 1 performs ultrasonic scanning by entering the liquid couplant in two adjacent liquid reservoir units.

[0098] Embodiment Three:

[0099] The difference between the third embodiment and the first embodiment lies in that: for the clamping device for solid-coupled ultrasonic detection provided in this embodiment, both the first liquid reservoir unit 2 and the second liquid reservoir unit 3 are inclined, and the first liquid reservoir unit 2 and the second liquid reservoir unit 3 respectively match corresponding rotation components 9 and are simultaneously in an inclined state;

[0100] The top of the battery body 41 is fixed by a clamping plate. The battery body 41 is vertically arranged between the first liquid reservoir unit 2 and the second liquid reservoir unit 3. When the battery body 41 is in a slack state without being clamped, there is an included angle α between both the first solid-coupled flexible layer 25 and the second solid-coupled flexible layer 32 and the surface of the battery body 41. During the process of converting from the slack state to the clamping state, the corresponding rotation components 9 of the first liquid reservoir unit 2 and the second liquid reservoir unit 3 are rotated so that the included angle α between the surfaces of the first solid-coupled flexible layer 25 and the second solid-coupled flexible layer 32 and the surface of the battery body 41 gradually becomes smaller until it reaches 0 o , and the battery body 41 is clamped by the first liquid reservoir unit 2 and the second liquid reservoir unit 3 and is closely attached to the opposite first solid-coupled flexible layer 25 and the second solid-coupled flexible layer 32. The process in which the included angle α gradually becomes 0 o can discharge the air between the corresponding contact surfaces of the first solid-coupled flexible layer 25, the second solid-coupled flexible layer 32 and the battery body 41.

[0101] Embodiment Three is the preferred embodiment of the present invention, and its ultrasonic scanning spectrogram is as Figure 12 shown.

[0102] Comparative Example One:

[0103] The difference between Comparative Example One and Embodiment Three lies in that: when the liquid reservoir unit in Comparative Example One is in a slack state, there is no included angle between both the first solid-coupled flexible layer 25 and the second solid-coupled flexible layer 32 and the surface of the battery body 41. Therefore, there is no process in which the included angle α gradually becomes 0 during the fitting process of the first solid-coupled flexible layer 25 and the second solid-coupled flexible layer 32 oThe process of discharging the air on the contact surface of the battery body 41.

[0104] After ultrasonic inspection of the battery body 41 in the clamping state in Comparative Example 1, the obtained scanning pattern is as Figure 13 shown, and there are bubbles.

[0105] By comparing the scanning pattern in Example 3 (as Figure 12 shown) with the scanning pattern in Comparative Example 1 (as Figure 13 shown), it can be known that:

[0106] In Comparative Example 1, since there is no included angle α between both the first solid-coupling flexible layer 25 and the second solid-coupling flexible layer 32 and the surface of the part 4 to be measured gradually becomes 0 o , ultrasonic inspection in the clamping state in Comparative Example 1 cannot avoid the interference of bubbles;

[0107] For the clamping device for solid-coupling ultrasonic inspection in Example 3, during the clamping process, when the liquid storage unit changes from the inclined state to the upright state, the included angle α gradually decreases until 0°, and both the first solid-coupling flexible layer 25 and the second solid-coupling flexible layer 32 discharge the air on the contact surface with the battery body 41. After discharging the air on the surfaces of both contact ends, as Figure 12 shown, it can be directly seen that the ultrasonic scanning result in Example 3 avoids the interference of bubbles, and the ultrasonic inspection scanning effect is better.

[0108] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brief description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0109] The above-described embodiments only represent several implementation manners of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent should be subject to the appended claims.

Claims

1. A clamping device for solid-coupled ultrasonic testing, characterized in that: Comprising a liquid reservoir unit assembly, the liquid reservoir unit assembly includes at least two liquid reservoir units, and the at least two liquid reservoir units are arranged in the front-rear direction, wherein, At least one part to be measured (4) is arranged between two adjacent liquid reservoir units, and a solid coupling flexible layer is arranged on the contact surface between the liquid reservoir unit and the part to be measured (4); When the part to be measured (4) is not clamped, at least one liquid reservoir unit is arranged obliquely; When the part to be measured (4) is clamped, the two liquid reservoir units move towards each other and abut against each other, and the obliquely arranged liquid reservoir unit returns to the upright position. The two liquid reservoir units correspond to each other and are in close contact to clamp the part to be measured (4) between the two liquid reservoir units, and the solid coupling flexible layer between the part to be measured (4) and the adjacent two liquid reservoir units is closely attached; When clamping the part to be measured (4) by using two adjacent liquid reservoir units, the two liquid reservoir units at least include a relaxed state in which the part to be measured (4) is not clamped and a clamping state in which the part to be measured (4) is clamped, wherein, In the relaxed state, the part to be measured (4) is not clamped by the two adjacent liquid reservoir units, and the surface of at least one solid coupling flexible layer and the surface of the part to be measured (4) are arranged at a first included angle; In the clamping state, the part to be measured (4) is clamped by the two adjacent liquid reservoir units, the part to be measured (4) is closely attached to the solid coupling flexible layer between the two adjacent liquid reservoir units, and the surface of the solid coupling flexible layer and the surface of the part to be measured (4) are both in a parallel and attached distribution; During the conversion of two adjacent liquid storage units from the relaxed state to the clamping state, the angle between the surface of the solid coupling flexible layer and the surface of the part to be measured (4) gradually decreases from the first angle until it reaches 0 in the clamping state o ; During the process of driving the two liquid reservoir units to be in close contact, the air between the solid coupling flexible layer and the part to be measured is discharged.

2. The clamping device for solid-coupled ultrasonic testing according to claim 1, wherein: One of the two liquid reservoir units is inclined, and the obliquely arranged liquid reservoir unit is in an inclined state by cooperating with a rotating assembly (9).

3. The clamping device for solid-coupled ultrasonic testing according to claim 1, characterized in that: Both of the two liquid reservoir units are inclined, and each of the two liquid reservoir units is matched with a corresponding rotating assembly (9) and the two liquid reservoir units are in an inclined state at the same time.

4. The clamping device for solid-coupled ultrasonic testing according to claim 2 or 3, characterized in that: The rotating assembly (9) is connected to the liquid reservoir unit through a rotating shaft to realize the rotation of the liquid reservoir unit during the inclined state and the process of returning to the upright position.

5. The clamping device for solid-coupled ultrasonic testing according to any one of claims 1 to 3, characterized in that: At least one liquid reservoir unit is externally equipped with a motion assembly (6), and the motion assembly (6) drives the connected liquid reservoir unit to move so as to achieve the approaching movement of the two liquid reservoir units for gradual fitting.

6. The clamping device for solid-coupled ultrasonic testing according to claim 5, wherein: When the two liquid reservoir units are driven by the motion assembly (6) to move towards each other, a reference side wall of the solid coupling flexible layer on the two liquid reservoir units first contacts or a reference side wall of the solid coupling flexible layer on the two liquid reservoir units and the part to be measured (4) first contacts; After the reference side wall contacts, the two liquid reservoir units are driven along the direction perpendicular to the reference side wall with this reference side wall as the reference until the solid coupling flexible layer is in full contact with the part to be measured.

7. The clamping device for solid-coupled ultrasonic testing according to claim 6, wherein: The reference side wall is a side edge, a bottom edge or a top edge of the solid coupling flexible layer or the part to be measured (4).

8. The clamping device for solid-coupled ultrasonic testing according to claim 1, characterized in that: It further includes a guiding assembly (5) arranged in the moving direction of the liquid reservoir unit; During the process of the two liquid reservoir units moving towards each other, the guiding assembly (5) guides the liquid reservoir unit in the moving state.

9. A solid-coupled ultrasonic testing device, characterized in that: A clamping device and a probe assembly (1) for solid-coupling ultrasonic inspection of a part to be inspected according to any one of claims 1 to 8; The probe assembly (1) includes a probe and a displacement assembly arranged oppositely, the probe extends into the corresponding liquid reservoir unit and is located on both sides of the part to be inspected (4); the displacement assembly is used to drive the probe to move up, down, left and right in a straight line direction.

10. A solid-coupled ultrasonic testing method, characterized in that: Including the following steps: Attach a solid-coupling flexible layer to the opposite surfaces of the two liquid reservoir units, the two liquid reservoir units are arranged in the front-rear direction, wherein at least one liquid reservoir unit is arranged obliquely, and the part to be inspected (4) is located between the two liquid reservoir units; Drive the two liquid reservoir units to move towards each other until a side wall of the solid-coupling flexible layer on the two liquid reservoir units comes into contact first, or until the solid-coupling flexible layer on the liquid reservoir unit comes into contact with a side wall of the part to be inspected (4) first; the part to be inspected (4) is not clamped by the two adjacent liquid reservoir units, and at least one surface of the solid-coupling flexible layer is arranged at a first included angle with the surface of the part to be inspected (4); Drive the two liquid reservoir units to continue moving towards each other. Taking the contacting side walls as a reference, continue to approach along the direction perpendicular to the contacting side walls until the two liquid reservoir units are corresponding and in close contact. The part to be measured (4) is clamped by the two adjacent liquid reservoir units, and the part to be measured (4) is closely attached to the solid coupling flexible layer between the two adjacent liquid reservoir units. The surfaces of the solid coupling flexible layer and the part to be measured (4) are both in parallel attachment distribution; wherein, during the process of driving the two liquid reservoir units into close contact, the included angle between the surface of the solid coupling flexible layer and the surface of the part to be measured (4) gradually decreases from the first included angle until it reaches 0 o , and discharge the air between the solid coupling flexible layer and the part to be measured (4); When the two liquid reservoir units clamp the part to be inspected (4), add a liquid couplant into the two liquid reservoir units, and the probe assembly (1) extends into the liquid couplant in the liquid reservoir unit; The probe assembly (1) moves in the liquid couplant in the liquid reservoir unit and performs ultrasonic scanning on the part to be inspected (4).

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