Ultrasonic water immersion focusing detection system and leveling loading system and leveling method thereof

Abstract

The invention discloses an ultrasonic water immersion focusing detection system and a leveling loading system and a leveling method thereof, and relates to the technical field of ultrasonic detection systems. The leveling loading system is used for placing and leveling a to-be-detected workpiece, and comprises an objective table and at least three groups of supporting seat assemblies. Wherein the plurality of groups of supporting seat assemblies are mutually independent and are arranged at the top of the objective table in a manner of translating along a first direction and a second direction, and the first direction is perpendicular to the second direction; the output end of the supporting base assembly is used for making contact with and supporting a workpiece, the output end of the supporting base assembly is used for making point-surface contact with the workpiece, the output end of the supporting base assembly can ascend and descend, and by means of the supporting base assembly, leveling of the workpiece can be achieved, so that the accuracy of the workpiece ultrasonic water immersion focusing detection result is improved; and the multiple sets of supporting base assemblies move in the first direction and the second direction, so that the workpieces can be stably supported, and the workpieces in any irregular shape can be supported.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of ultrasonic detection systems, and more particularly to an ultrasonic water immersion focusing detection system, a leveling object carrying system and a leveling method thereof. BACKGROUND

[0002] The ultrasonic water immersion focusing detection technology plays an important role in the field of flat plate material detection. During detection, the flat plate material is usually completely immersed in water, and water is used as a coupling medium to allow ultrasonic waves to propagate more efficiently to the material. The ultrasonic wave beams emitted by the detection equipment are often focused on a specific area, thereby significantly improving the detection sensitivity and resolution, and providing a comprehensive and accurate assessment of the internal quality and structural integrity of the flat plate material, thereby ensuring the quality and safety of the flat plate material. After water immersion scanning detection, the echo amplitude at a certain depth is selected for imaging according to the gate, and the defects are distinguished by observing the differences in the image.

[0003] However, when the plate material is directly placed in the water tank for detection, if the acoustic impedance of the plate bottom and the tank bottom interface is similar to the acoustic impedance of the plate itself, it will have a certain negative impact on the bottom echo of the plate material ultrasonic detection area, resulting in inaccurate detection results. In addition, if the workpiece is not leveled, the selected depth during detection is uneven, which can easily lead to inaccurate defect positioning.

[0004] In summary, how to improve the accuracy of the results of ultrasonic water immersion focusing detection of plate materials is a problem that needs to be solved by those skilled in the art at present. SUMMARY

[0005] Therefore, the purpose of the present application is to provide a leveling object carrying system that can improve the accuracy of the results of ultrasonic water immersion focusing detection of workpieces.

[0006] Another purpose of the present application is to provide an ultrasonic water immersion focusing detection system comprising the above leveling object carrying system.

[0007] Still another purpose of the present application is to provide a leveling method applied to the above leveling object carrying system and ultrasonic water immersion focusing detection system.

[0008] In order to achieve the above purposes, the present application provides the following technical solutions:

[0009] A leveling object carrying system for placing and leveling a workpiece to be detected, comprising: an object carrying table and at least three groups of support seat assemblies;

[0010] The plurality of groups of support seat assemblies are independent of each other and are arranged on the top of the object carrying table and can translate in a first direction and a second direction, and the first direction is perpendicular to the second direction;

[0011] The output end of the support base assembly is used to contact and support the workpiece, and the output end of the support base assembly is used to point surface contact with the workpiece. The output end of the support base assembly is liftable.

[0012] Preferably, the support base includes a plurality of slide rail assemblies, and the output ends of the plurality of slide rail assemblies are provided with corresponding support base assemblies for driving the support base assemblies to move in the first direction and the second direction.

[0013] Preferably, the slide rail assembly includes a first slide rail and a second slide rail.

[0014] In the same group of slide rail assemblies, the first slide rail is connected to the second slide rail for driving the second slide rail to move in the first direction, and the second slide rail is connected to the corresponding support base assembly for driving the support base assembly to move in the second direction.

[0015] Preferably, a plurality of first position detectors and a plurality of second position detectors are further included, the first position detectors are used to obtain coordinates of the corresponding support base assemblies in the first direction, and the second position detectors are used to obtain coordinates of the corresponding support base assemblies in the second direction.

[0016] Preferably, the first position detectors are arranged on the first slide rails, the second position detectors are arranged on the second slide rails, and the first position detectors and the second position detectors are both infrared distance meters.

[0017] And / or, the end portions of the first slide rails and the second slide rails are provided with safety limiters for buffering the support base assemblies.

[0018] Preferably, a controller is further included.

[0019] The controller is signal connected to the first position detectors and the second position detectors for obtaining position coordinates of a plurality of support points of the workpiece, and the support points are contact points between the workpiece and the output ends of the support base assemblies.

[0020] The controller is signal connected to the support base assemblies for controlling the heights of the output ends of the support base assemblies.

[0021] Preferably, the first slide rails and the second slide rails each include a guide rail, a lead screw, and a power member.

[0022] The lead screw is rotatably arranged on the guide rail, and the output end of the power member is connected to the end portion of the lead screw for driving the lead screw to rotate.

[0023] The support base assembly has a threaded connection hole, the screw rod of the second slide rail passes through the threaded connection hole corresponding to the support base assembly and is threadedly connected with the support base assembly.

[0024] The guide rail of the second slide rail has a threaded connection hole, the screw rod of the first slide rail passes through the threaded connection hole of the second slide rail in the same group and is threadedly connected with the second slide rail.

[0025] Preferably, the number of the support base assemblies and the slide rail assemblies is four.

[0026] The four slide rail assemblies are a first slide rail assembly, a second slide rail assembly, a third slide rail assembly and a fourth slide rail assembly.

[0027] The screw rod of the first slide rail in the first slide rail assembly and the screw rod of the first slide rail in the second slide rail assembly are coaxial; the screw rod of the first slide rail in the third slide rail assembly and the screw rod of the first slide rail in the fourth slide rail assembly are coaxial.

[0028] The first slide rail in the first slide rail assembly and the first slide rail in the third slide rail assembly are oppositely arranged; the first slide rail in the second slide rail assembly and the first slide rail in the fourth slide rail assembly are oppositely arranged.

[0029] The second slide rail in the first slide rail assembly and the second slide rail in the third slide rail assembly are located between the first slide rails of the first slide rail assembly and the third slide rail assembly.

[0030] The second slide rail in the second slide rail assembly and the second slide rail in the fourth slide rail assembly are located between the first slide rails of the second slide rail assembly and the fourth slide rail assembly.

[0031] Preferably, the support base assembly comprises a base and an extension piece, the base is arranged on the object table and can move in the first direction and the second direction, and the extension piece is arranged on the base in the same group of the support base assembly.

[0032] Preferably, the base has the threaded connection hole.

[0033] And / or, the extension piece is a hydraulic cylinder, the support base assembly further comprises a hydraulic assembly for driving liquid flow, the liquid outlet of the hydraulic assembly is connected to the liquid inlet of the extension piece, and the liquid return port of the hydraulic assembly is connected to the liquid outlet of the extension piece.

[0034] An ultrasonic wave immersion focusing detection system, comprising the leveling object table system of any one of the above.

[0035] A leveling method is applied to the above-mentioned ultrasonic water immersion focusing detection system, the leveling method comprising:

[0036] After the workpiece is placed in position, the position coordinates of several support points of the workpiece are obtained. The support points are the contact points between the workpiece and the output end of the support base assembly.

[0037] Adjust the ultrasonic probe to the position coordinates of the target support point, and then control the ultrasonic probe to emit ultrasonic pulses toward the workpiece;

[0038] Obtain the bottom wave path S at the position coordinates corresponding to several support points, and take one of the bottom wave path S as the reference point path. ;

[0039] Based on the bottom wave path S and the reference point path Determine the lifting displacement of the output ends of several support assemblies (2);

[0040] The output ends of several support base assemblies (2) are raised or lowered according to the lifting displacement of their output ends.

[0041] Preferably, the reference point acoustic path It is one of the lowest points in the several bottom wave acoustic paths S.

[0042] Preferably, the calculation method for determining the lifting displacement of the output end of the support assembly is as follows:

[0043] ;

[0044] In the formula, K is the calculation coefficient, and , The speed at which ultrasonic waves propagate inside the workpiece. This represents the speed at which ultrasonic waves propagate in water.

[0045] In this application, the support platform is used to support and install the support base assembly. Several sets of support base assemblies are designed independently and can move independently in the horizontal plane along the first direction and the second direction, thereby moving to the target position. Several sets of support base assemblies cooperate to support the workpiece placed on them, and the top output end of the support base assembly can be raised and lowered, which can also drive the tilt of the workpiece placed on it and its contact position. By raising and lowering the output ends of several sets of support base assemblies, leveling can be achieved. Thus, when this leveling loading system is applied to the water immersion focusing detection system to support flat plate workpieces, it can improve the accuracy of the ultrasonic water immersion focusing detection results of plate materials. Attached Figure Description

[0046] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the embodiments or prior art description will be briefly introduced as follows. Obviously, the accompanying drawings in the following description only are part of the present application, and for those skilled in the art, other drawings can be obtained without creative work based on the provided drawings.

[0047] Figure 1 Structure diagram of the specific embodiment provided by the present application;

[0048] Figure 2 Structure diagram of the support seat assembly of the specific embodiment provided by the present application;

[0049] Figure 3 Structure diagram of the first sliding rail of the specific embodiment provided by the present application;

[0050] Figure 4 Structure diagram of the second sliding rail of the specific embodiment provided by the present application.

[0051] Reference signs:

[0052] 1-sliding rail assembly; 11-first sliding rail; 12-second sliding rail; 101-guide rail; 102-screw rod;

[0053] 2-support seat assembly; 21-base; 22-telescopic piece; 23-hydraulic assembly;

[0054] 3-first position obtainer; 4-second position obtainer; 5-safety limiting piece;

[0055] X-first direction; Y-second direction. DETAILED DESCRIPTION

[0056] The technical solutions in the embodiments of the present application will be described clearly and completely below with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work are within the protection scope of the present application.

[0057] The core of the present application is to provide a leveling object carrying system, using which the result accuracy of workpiece ultrasonic immersion focusing detection can be improved. Another core of the present application is to provide an ultrasonic immersion focusing detection system comprising the leveling object carrying system. Still another core of the present application is to provide a leveling method applied to the leveling object carrying system and the ultrasonic immersion focusing detection system.

[0058] The application provides a leveling object carrying system for placing and leveling a workpiece to be detected, comprising: an object carrying table and at least three groups of support seat assemblies 2; wherein the groups of support seat assemblies 2 are independent of each other and are arranged on the top of the object carrying table and can move in a first direction and a second direction, and the first direction is perpendicular to the second direction; the output end of the support seat assembly 2 is used for contacting and supporting the workpiece, and the output end of the support seat assembly 2 is used for point surface contact with the workpiece, and the output end of the support seat assembly 2 can be lifted.

[0059] Reference Figure 1 The carrying table is used for supporting and mounting the support seat assemblies 2, the groups of support seat assemblies 2 are independently designed and can independently move in the X direction and the Y direction in the horizontal plane, so as to be moved to a target position, the groups of support seat assemblies 2 are cooperated to support the workpiece placed thereon, the top output end of the support seat assembly 2 can be lifted, and the workpiece placed thereon can be driven to be inclined with the contact position, the height of different positions can be adjusted by lifting the output end of the groups of support seat assemblies 2, and the position output device is further arranged, the position of the output end of the support seat assembly 2 is obtained by using the position output device, such as the position coordinates (Xi, Yi) in the X direction and the Y direction coordinate system, and the position information of the output end of the support seat assembly 2 is output by broadcasting or digital display, so as to be provided to an operator, thereby facilitating the operator to accurately and repeatedly adjust the support seat assembly 2 to the target position.

[0060] It should be noted that the type of the position output device is not limited, as long as the above functions are met, for example, in some embodiments, the position output device comprises a keyboard and a display, the position information of the output end of the support seat assembly 2 obtained by the keyboard is input into the position output device, and the position information of the output end of the support seat assembly 2 is output by the display; or in some embodiments, the position output device comprises a signal acquisition device and a display, the signal acquisition device is signal connected to the first position acquisition device 3 and the second position acquisition device 4 to receive the position information, and the display is signal connected to the signal acquisition device to receive the position information transmitted by the signal acquisition device and display on the screen.

[0061] The leveling object carrying system is applied in the water immersion focusing detection system, and when the flat plate type workpiece is supported, the workpiece can be leveled, so that the result accuracy of the ultrasonic water immersion focusing detection of the flat plate type workpiece is improved, and the detection accuracy and repeatability are high due to the arrangement of the position output device.

[0062] It should be noted that the type of the position output device is not limited, as long as the above functions are met, for example, in some embodiments, the position output device comprises a keyboard and a display, the position information of the output end of the support seat assembly 2 obtained by the keyboard is input into the position output device, and the position information of the output end of the support seat assembly 2 is output by the display; or in some embodiments, the position output device comprises a signal acquisition device and a display, the signal acquisition device is signal connected to the first position acquisition device 3 and the second position acquisition device 4 to receive the position information, and the display is signal connected to the signal acquisition device to receive the position information transmitted by the signal acquisition device and display on the screen.

[0063] In some embodiments, the object table comprises a base and a plurality of sets of telescopic rod assemblies, the telescopic rod assemblies are installed on the base, the telescopic rod assembly comprises a first telescopic rod and a second telescopic rod, the fixed end of the first telescopic rod is installed on the base, the fixed end of the second telescopic rod is installed on the movable end of the first telescopic rod, and the support seat assembly 2 is installed on the movable end of the second telescopic rod, so that the telescopic movement of the first telescopic rod can drive the second telescopic rod and the support seat assembly 2 thereon to move along the X direction, and the telescopic movement of the second telescopic rod can drive the support seat assembly 2 to move along the Y direction.

[0064] In other embodiments, the object table comprises a base and a plurality of sets of telescopic rod assemblies, the telescopic rod assemblies are installed on the base, the telescopic rod assembly comprises a first telescopic rod, a second telescopic rod and a third telescopic rod, the fixed end of the first telescopic rod is installed on the base, the fixed ends of the second telescopic rod and the third telescopic rod are installed on the movable end of the first telescopic rod, and a set of support seat assemblies 2 are installed on the movable end of the second telescopic rod, and another set of support seat assemblies 2 are installed on the movable end of the third telescopic rod, so that the telescopic movement of the first telescopic rod can drive the two second telescopic rods and the support seat assemblies 2 thereon to move along the X direction, and the telescopic movement of the two second telescopic rods can drive the respective support seat assemblies 2 to move along the Y direction.

[0065] On the basis of the above-mentioned embodiments, the object table comprises a plurality of sets of slide rail assemblies 1, the output ends of the plurality of sets of slide rail assemblies 1 are provided with corresponding support seat assemblies 2 for driving the support seat assemblies 2 to move along the first direction and the second direction.

[0066] Reference Figure 1 It is explained that the object table is composed of a plurality of sets of slide rail assemblies 1, the number of the slide rail assemblies 1 is the same as the number of the object table, in other words, the support seat assemblies 2 are installed one by one corresponding to the slide rail assemblies 1, and the support seat assemblies 2 are connected to the top of the corresponding slide rail assemblies 1, so as to be driven by the slide rail assemblies 1 to move along the X or Y direction, so that the object table has assemblies corresponding to the object table.

[0067] On the basis of the above-mentioned embodiments, the slide rail assembly 1 comprises a first slide rail 11 and a second slide rail 12; in the same set of slide rail assemblies 1, the first slide rail 11 is connected to the second slide rail 12 for driving the second slide rail 12 to move along the first direction; the second slide rail 12 is connected to the corresponding support seat assembly 2 for driving the support seat assembly 2 to move along the second direction.

[0068] Reference Figure 1It is explained that, in order to move the support seat assembly 2 along the X direction and the Y direction, the base 21 of the second slide rail 12 is used as the slider of the first slide rail 11 or is connected to the slider of the first slide rail 11, and the first slide rail 11 is arranged along the X direction, so that the second slide rail 12 can be pushed to move along the X direction by the first slide rail 11. In cooperation, the base 21 of the support seat assembly 2 is used as the slider of the second slide rail 12 or is connected to the slider of the second slide rail 12, and the second slide rail 12 is arranged along the Y direction, so that the support seat assembly 2 can be pushed to move along the Y direction by the second slide rail 12.

[0069] On the basis of the above-mentioned embodiments, a plurality of first position acquisition devices 3 and a plurality of second position acquisition devices 4 are further included, the first position acquisition devices 3 are used to acquire the coordinates of the corresponding support seat assembly 2 along the X direction, and the second position acquisition devices 4 are used to acquire the coordinates of the corresponding support seat assembly 2 along the Y direction. It needs to be explained that the first position acquisition devices 3 directly acquire the coordinates of the second slide rail 12 along the X direction, so as to determine the coordinates of the support seat assembly 2 along the X direction which is carried on the second slide rail 12.

[0070] When in use, the X direction coordinates of the support seat assembly 2 acquired by the first position acquisition devices 3 are combined with the Y direction coordinates of the support seat assembly 2 acquired by the second position acquisition devices 4, so as to determine the position coordinates (X, Y) of the support point of the workpiece. Based on the position coordinates of the support point of the workpiece, it is convenient to emit ultrasonic pulses at the fixed point for detection.

[0071] It needs to be explained that the types of the first position acquisition devices 3 and the second position acquisition devices 4 are not limited, as long as the position acquisition requirement can be met. For example, in some embodiments, the first position acquisition devices 3 and the second position acquisition devices 4 can all adopt the sub-controllers, and the signals thereof are connected to the sensors for detecting the positions of the corresponding support seat assemblies 2, so as to realize the acquisition of the X direction coordinates and the Y direction coordinates of the support seat assemblies 2.

[0072] On the basis of the above-mentioned embodiments, the first position acquisition devices 3 are arranged on the first slide rail 11, the second position acquisition devices 4 are arranged on the second slide rail 12, and the first position acquisition devices 3 and the second position acquisition devices 4 are all infrared distance meters.

[0073] Reference Figure 3 and Figure 4 It is explained that the first position acquisition devices 3 and the second position acquisition devices 4 are respectively arranged at one end of the first slide rail 11 and the second slide rail 12, and the first position acquisition devices 3 and the second position acquisition devices 4 all face the other end of the slide rails where they are arranged, so as to correspondingly detect in real time during the movement of the second slide rail 12 and the support seat assembly 2, and accurately determine the positions thereof.

[0074] On the basis of the above-mentioned embodiments, the end of the first slide rail 11 and the second slide rail 12 is provided with a safety limiting piece 5 for buffering the support seat assembly 2.

[0075] Reference Figure 3 And Figure 4 It is described that the safety limiting piece 5 is provided at least at one end of the first slide rail 11 and the second slide rail 12, so that when the support seat assembly 2 moves to the limit position of the stroke, the safety limiting piece 5 can achieve the anti-collision of the support seat assembly 2 through its own deformation. The safety limiting piece 5 can be a spring or a rubber block, etc. In particular, the end of the first slide rail 11 and the second slide rail 12 corresponding to the first position acquirer 3 and the second position acquirer 4 is provided with the safety limiting piece 5, and the safety limiting piece 5 protrudes from the corresponding first position acquirer 3 and the second position acquirer 4 when it is at the expansion limit position or the contraction limit position. That is, the safety limiting piece 5 provided on the first slide rail 11 protrudes from the first position acquirer 3 provided at the same end of the first slide rail 11. Similarly, the safety limiting piece 5 provided on the second slide rail 12 protrudes from the second position acquirer 4 provided at the same end of the second slide rail 12.

[0076] On the basis of the above-mentioned embodiments, a controller is further included. The controller is signal connected to the first position acquirer 3 and the second position acquirer 4 for acquiring the position coordinates of the support points of the workpiece. The support point is the contact point between the workpiece and the output end of the support seat assembly 2. The controller is signal connected to the support seat assembly 2 for controlling the height of the output end of the support seat assembly 2.

[0077] In use, the position signal output by the first position acquirer 3 and the second position acquirer 4 is received by the controller, and then the position coordinates of the support points of the workpiece are determined, so that the control system of the ultrasonic water immersion focusing detection system is matched or directly used as the system of the ultrasonic water immersion focusing detection system, so that the accurate sending of the ultrasonic pulse at the support point of the workpiece is realized, and then the height of each support point of the workpiece is determined, and then the lifting displacement d (the height difference compared with the support point as the reference) received by the controller or determined by the controller is directly used to judge, and the calculation method for the judgment process is as follows: ; In the formula, K is a calculation coefficient, and , is the ultrasonic wave propagation speed in the workpiece, is the ultrasonic wave propagation speed in water; S is the wave sound path of the bottom surface of the workpiece; is the sound path at the support point as the reference of the workpiece; and then the output end of the telescopic piece 22 is controlled to be raised or lowered according to the determined lifting displacement d, so that the automatic leveling of the workpiece is realized.

[0078] It should be noted that the output end lifting scheme of the telescopic members 22 in each group of support seat assemblies 2 controlled by the controller according to the height determination result is not limited, as long as the workpiece leveling can be achieved. For example, in some embodiments, the one with the lowest output end position in each group of support seat assemblies 2 can be taken as a reference to determine the height difference or lifting displacement, and then the telescopic members 22 with high output end positions can be retracted to achieve the leveling of the workpiece. Alternatively, in some embodiments, the one with the highest output end position in each group of support seat assemblies 2 can be taken as a reference to determine the height difference or lifting displacement, and then the telescopic members 22 with low output end positions can be extended to achieve the leveling of the workpiece. Alternatively, in some embodiments, the one with an intermediate output end position in each group of support seat assemblies 2 can be taken as a reference to determine the height difference or lifting displacement, and then the telescopic members 22 with high or low output end positions can be retracted or extended correspondingly to achieve the leveling of the workpiece.

[0079] On the basis of the above-mentioned embodiments, the first slide rail 11 and the second slide rail 12 each include a guide rail 101, a lead screw 102, and a power member; the lead screw 102 is rotatably arranged on the guide rail 101, and the output end of the power member is connected to the end of the lead screw 102 for driving the lead screw 102 to rotate; the support seat assembly 2 has a threaded connection hole, the lead screw 102 of the second slide rail 12 passes through the threaded connection hole of the corresponding support seat assembly 2 and is threadedly connected with the support seat assembly 2; the guide rail 101 of the second slide rail 12 has a threaded connection hole, and the lead screw 102 of the first slide rail 11 passes through the threaded connection hole of the second slide rail 12 in the same group and is threadedly connected with the second slide rail 12.

[0080] Reference Figure 1 , Figure 3 and Figure 4 It is explained that the guide rail 101 is provided with a lead screw 102 extending along the length direction thereof, and both ends of the lead screw 102 are rotatably supported on the guide rail 101, and one end of the lead screw 102 is drivingly connected to the output end of the power member through a shaft coupling or a key connection, so that the lead screw 102 can rotate around its center line under the driving of the power member. The middle position of the length of the lead screw 102 is threadedly connected with the to-be-moved component, and the to-be-moved component is slidably arranged on the guide rail 101, i.e. is limited to move along the length direction of the guide rail 101, so that when the lead screw 102 is started to rotate by the power member, the to-be-moved component can be pushed to move along the length direction of the lead screw 102 and the guide rail 101. Such arrangement is beneficial to improve the position accuracy of the movement of the support seat assembly 2.

[0081] Specifically, the guide rail 101 and lead screw 102 in the first slide rail 11 are both arranged to extend along the X direction. When the movable part of the first slide rail 11 is the guide rail 101 of the second slide rail 12, the power component of the first slide rail 11 can carry the second slide rail 12 to move along the X direction after it is started. The guide rail 101 and lead screw 102 in the second slide rail 12 are both arranged to extend along the Y direction. When the movable part of the second slide rail 12 is the support assembly 2, the power component of the first slide rail 11 can carry the support assembly 2 to move along the Y direction after it is started.

[0082] Based on the above embodiments, the number of support base assembly 2 and slide rail assembly 1 are both four sets; the four sets of slide rail assembly 1 are a first slide rail assembly, a second slide rail assembly, a third slide rail assembly, and a fourth slide rail assembly; the lead screw 102 of the first slide rail 11 in the first slide rail assembly and the lead screw 102 of the first slide rail 11 in the second slide rail assembly extend along the same center line; the lead screw 102 of the first slide rail 11 in the third slide rail assembly and the lead screw 102 of the first slide rail 11 in the fourth slide rail assembly extend along the same center line; and the first slide rail... The first slide rail 11 in the component is arranged opposite to the first slide rail 11 in the third slide rail component; the first slide rail 11 in the second slide rail component is arranged opposite to the first slide rail 11 in the fourth slide rail component; the second slide rail 12 in the first slide rail component and the second slide rail 12 in the third slide rail component are both located between the first slide rail 11 in the first slide rail component and the first slide rail 11 in the third slide rail component; the second slide rail 12 in the second slide rail component and the second slide rail 12 in the fourth slide rail component are both located between the first slide rail 11 in the second slide rail component and the first slide rail 11 in the fourth slide rail component.

[0083] In this embodiment, the four sets of slide rail assemblies 1 are divided into a first slide rail assembly, a second slide rail assembly, a third slide rail assembly, and a fourth slide rail assembly. Regarding the first slide rail 11 in each set of slide rail assemblies 1, refer to... Figure 1 As explained, the first slide rail assembly is located to the left of the second slide rail assembly, and the first slide rail 11 of the first slide rail assembly is arranged parallel to and opposite to the end of the first slide rail 11 of the third slide rail assembly. Similarly, the third slide rail assembly is located to the left of the fourth slide rail assembly, and the first slide rail 11 of the third slide rail assembly is arranged parallel to and opposite to the end of the first slide rail 11 of the fourth slide rail assembly.

[0084] Regarding the second slide rail 12 in each slide rail assembly 1, refer to... Figure 1 As explained, the second slide rail 12 of the first slide rail assembly and the second slide rail 12 of the third slide rail assembly are located on the same side of their respective first slide rail 11, and the second slide rail 12 of the third slide rail assembly and the second slide rail 12 of the fourth slide rail assembly are located on the same side of their respective first slide rail 11, and the second slide rail 12 of the first slide rail assembly, the second slide rail 12 of the third slide rail assembly, and the second slide rail 12 of the fourth slide rail assembly are arranged close to each other.

[0085] In this embodiment, the four groups of support seat assemblies 2 can move within the rectangular area formed by the first slide rails 11 of the four groups of slide rail assemblies 1, and the movement area of each group of support seat assemblies 2 is within the part of the rectangular area formed by the first slide rail 11 of the corresponding slide rail assembly 1. Thus, the worktable can stably support workpieces of any shape, and the contact position XY coordinates of the support seat assemblies 2 and the workpieces can be easily determined.

[0086] On the basis of the above embodiment, the support seat assembly 2 comprises a base 21 and an extension piece 22. The base 21 is movably arranged on the worktable along the first direction and the second direction. The extension piece 22 is arranged on the base 21 in the same group of support seat assemblies 2 as the base 21.

[0087] Reference Figure 1 and Figure 2 It should be noted that the base 21 is a base for supporting and mounting the remaining components of the support seat assembly 2, and is a component of the support seat assembly 2 for connecting with the slide rail assembly 1. That is, the slide rail assembly 1 directly drives the base 21 of the support seat assembly 2 to move, thereby driving the other components arranged on the base 21. Specifically, the extension piece 22 is arranged on the base 21, and the top end of the extension piece 22 can be lifted and lowered, thereby lifting or lowering the workpiece arranged on the extension piece 22.

[0088] Reference Figure 2 It should be noted that the base 21 has a threaded hole to cooperate with the second slide rail 12 comprising the lead screw 102.

[0089] It should be noted that the type of the base 21 is not limited, as long as it can cooperate with the lead screw 102 and meet the requirement of sliding cooperation with the guide rail 101.

[0090] In some embodiments, the base 21 is a rectangular block. The guide rail 101 has a groove extending along the length direction of the guide rail 101 on the top thereof, and the lead screw 102 is arranged in the groove. The base 21 is inserted into the groove, and the two side surfaces of the base 21 are attached to the two side surfaces of the groove, thereby achieving the sliding cooperation with the guide rail 101. In addition, a threaded hole is formed in the center of the base 21, through which the lead screw 102 passes and cooperates with the lead screw 102.

[0091] In some embodiments, the base 21 is an m-shaped structure. The guide rail 101 has a groove extending along the length direction of the guide rail 101 on the top thereof, and the lead screw 102 is arranged in the groove. The two side walls of the base 21 along the width direction of the base 21 span across the guide rail 101 along the width direction of the guide rail 101, and the inner surfaces of the two side walls of the base 21 along the width direction of the base 21 are attached to the outer surfaces of the guide rail 101, thereby achieving the sliding cooperation with the guide rail 101. In addition, a threaded hole is formed in the center of the protrusion of the base 21, through which the lead screw 102 passes and cooperates with the lead screw 102.

[0092] It should be noted that the structure type of the guide rail 101 in the second slide rail 12 matched with the first slide rail 11 including the lead screw 102 is the same as the base 21, which will not be described in detail here. The structure of the guide rail 101 in the second slide rail 12 matched with the first slide rail 11 including the lead screw 102 can be the same as or different from the base 21.

[0093] On the basis of the above-mentioned embodiments, the telescopic member 22 is a hydraulic cylinder, and the support seat assembly 2 further comprises a hydraulic assembly 23 for driving the flow of liquid. The outlet of the hydraulic assembly 23 is communicated with the inlet of the telescopic member 22, and the return port of the hydraulic assembly 23 is communicated with the outlet of the telescopic member 22.

[0094] Reference Figure 1 It should be noted that the output end of the telescopic member 22 extends upward. In order to drive the movement of the support seat assembly 2 by the object table, the telescopic member 22 in the support seat assembly 2 is supplied with oil to realize telescopic extension. The base 21 in the support seat assembly 2 is provided with a hydraulic assembly 23. The outlet of the hydraulic assembly 23 is communicated with the inlet of the telescopic member 22, and the outlet of the telescopic member 22 is communicated with the return port of the hydraulic assembly 23. The hydraulic assembly 23 can supply oil to the telescopic member 22, and the hydraulic oil discharged from the telescopic member 22 can be circulated back to the hydraulic assembly 23.

[0095] It should be noted that the telescopic member 22 is not limited to a hydraulic cylinder, but can also be an electric telescopic rod or a pneumatic telescopic rod as long as it can realize the lifting of the output end.

[0096] It should be noted that the type of the hydraulic assembly 23 is not limited as long as it can meet the requirements of oil supply and circulation.

[0097] In some embodiments, the hydraulic assembly 23 comprises a hydraulic tank and a hydraulic pump. The inlet of the hydraulic pump is communicated with the inner cavity of the hydraulic tank to be able to extract the hydraulic oil stored in the hydraulic tank. The outlet of the hydraulic pump is communicated with the inlet of the telescopic member 22 to be able to pump the hydraulic oil into the inner cavity of the telescopic member 22. The outlet of the telescopic member 22 is communicated with the inner cavity of the hydraulic tank, so that the hydraulic oil discharged from the telescopic member 22 can be circulated back to the hydraulic tank.

[0098] In some embodiments, the hydraulic assembly 23 comprises a hydraulic tank, a hydraulic pump and a filter. The inlet of the filter is communicated with the inner cavity of the hydraulic tank. The inlet of the hydraulic pump is communicated with the outlet of the filter. The outlet of the hydraulic pump is communicated with the inlet of the telescopic member 22. The outlet of the telescopic member 22 is communicated with the inner cavity of the hydraulic tank, so that the oil supply requirement of the telescopic member 22 can be met during the circulation of the hydraulic oil, and the hydraulic oil used in circulation can be filtered to ensure the smoothness of the hydraulic circulation system.

[0099] In addition to the leveling and loading system described above, this application also provides an ultrasonic water immersion focusing detection system that includes the leveling and loading system disclosed in the above embodiments. The structure of the other parts of the ultrasonic water immersion focusing detection system can be found in the prior art, and will not be described in detail here.

[0100] In some embodiments, the controller signal is connected to the ultrasonic detection probe to control the ultrasonic detection probe to emit ultrasonic pulses, and in particular, to control the ultrasonic detection probe to emit ultrasonic pulses toward the location of the support.

[0101] In addition to the ultrasonic water immersion focusing detection system and its leveling carrier system described above, this application also provides a leveling method applied to the leveling carrier system and ultrasonic water immersion focusing detection system disclosed in the above embodiments. The leveling method includes the following steps:

[0102] Step S1: After placing the workpiece in place, obtain the position coordinates of several support points of the workpiece. The support points are the contact points between the workpiece and the output end of the support base assembly 2.

[0103] Understandably, step S1 is a preparatory step for determining the location before performing ultrasonic ranging.

[0104] Step S2: Adjust the ultrasonic probe to the position coordinates of the target support point, and then control the ultrasonic probe to emit ultrasonic pulses towards the workpiece; obtain the bottom wave sound path S at the position coordinates corresponding to several support points, and take one of the bottom wave sound path S as the reference point sound path. Based on the bottom wave path S and the reference point path The lifting and lowering displacement of the output ends of several support base components 2 are determined.

[0105] It is understandable that step S2 is the complete process of ultrasonic ranging, which involves first transmitting an ultrasonic pulse at a fixed point, and then using the data fed back after detection (i.e., the sound path at the reference point) to determine the distance. The process is performed to finally determine the lifting and lowering displacement of the output ends of several support base components 2. It should be noted that the absolute value of the lifting and lowering displacement of the output ends of the target support base component 2 is equal to the height difference between the target support point and the support point used as the reference. Furthermore, the lifting and lowering displacement of the output ends of the support base component 2 is the displacement that the support base component 2 needs to raise or lower to achieve leveling.

[0106] Specifically, the bottom wave path S corresponding to a selected support point is taken as the reference point path. Using the data of the bottom wave path S and the reference point path After calculation, the lifting displacement of the output end of the corresponding support assembly 2 can be determined, wherein the lifting displacement of the support point as the reference is equal to 0.

[0107] Step S3: According to the lifting displacement of the output end of each support seat assembly 2, control the lifting of the output end of each support seat assembly 2.

[0108] It can be understood that step S3 is to control the lifting of the output end of each support seat assembly 2 according to the lifting displacement of the output end of each support seat assembly 2 determined in step S2, that is, the height difference of the target support point compared with the reference support point, so as to realize the alignment of the workpiece.

[0109] Further, on the basis of the above embodiment, after step S3, it further includes:

[0110] Step S4: Control the ultrasonic probe to emit ultrasonic pulses to the workpiece again; obtain the bottom surface wave sound path S corresponding to each support point, and determine whether the workpiece is successfully aligned according to the re-obtained bottom surface wave sound path S; if all the re-obtained bottom surface wave sound paths S are equal, the workpiece is successfully aligned, otherwise, the workpiece is not successfully aligned.

[0111] It can be understood that step S4 is used to verify whether the workpiece is aligned.

[0112] On the basis of the above embodiment, the reference point sound path is the lowest one of the bottom surface wave sound paths S; it can be understood that after emitting ultrasonic pulses, the bottom surface wave sound path S at the position of each support seat assembly 2 is detected and obtained, and after comparing each bottom surface wave sound path S, the minimum value is determined as the reference point sound path Based on this, in step S3, only the output end of the support seat assembly 2 at the remaining support points except the reference point needs to be lifted.

[0113] On the basis of the above embodiment, the calculation method of the lifting displacement of the output end of the support seat assembly 2 is: ; in the formula, K is a calculation coefficient, and , is the ultrasonic wave propagation speed in the workpiece, is the ultrasonic wave propagation speed in water.

[0114] It can be understood that the ultrasonic wave propagation speed in the workpiece, the ultrasonic wave propagation speed in water, the bottom surface wave sound path S, and the reference point sound path are used to calculate to determine the lifting displacement of the output end of the support seat assembly 2, wherein the ultrasonic wave propagation speed in the workpiece and the ultrasonic wave propagation speed in water are determined by the material itself, so they are determined values, which can be input externally or can be data provided by the system program and can be called, and the bottom surface wave sound path S and the reference point sound path is acquired in step S2, and the reference point sound path The one corresponding to the lowest support point is adopted.

[0115] It should be noted that the relational terms herein such as first and second and the like can be used solely to distinguish one entity or action from another, without necessarily requiring or implying any such actual relationship or order between such entities or actions. The terms "upper surface", "lower surface", "top", "bottom" and the like as used herein refer to the drawings as defined in the specification.

[0116] The various embodiments described in the specification are progressive in nature, and each embodiment highlights the differences from other embodiments. The same or similar parts between various embodiments can be mutually referred to.

[0117] The ultrasonic water immersion focusing detection system, the leveling object carrying system and the leveling method provided by the present application are described in detail above. The principles and implementation manners of the present application are described by using specific examples in this paper. The above description of the embodiments is only used to help understand the method of the present application and its core idea. It should be pointed out that, for those skilled in the art, some improvements and modifications can be made to the present application without departing from the principles of the present application, and these improvements and modifications also fall within the protection scope of the present application.

Claims

1. A leveling and loading system, characterized in that, Used to place and level the workpiece to be inspected, including: a stage, a position output device, and at least three sets of support assemblies (2). Several sets of the support base assemblies (2) are independent of each other and can all be translatably disposed on the top of the platform along the first direction and the second direction, and the first direction is perpendicular to the second direction; The output end of the support assembly (2) is used to contact and support the workpiece, and the output end of the support assembly (2) is used to make point-to-surface contact with the workpiece. The output end of the support assembly (2) is liftable. The position output device is used to acquire and output the position information of the output end of several sets of the support assembly (2).

2. The leveling and loading system according to claim 1, characterized in that, The platform includes several sets of slide rail assemblies (1), and the output ends of the several sets of slide rail assemblies (1) are provided with corresponding support base assemblies (2) for driving the support base assemblies (2) to move along the first direction and the second direction.

3. The leveling and loading system according to claim 2, characterized in that, The slide rail assembly (1) includes a first slide rail (11) and a second slide rail (12); In the same group of slide rail assemblies (1), the first slide rail (11) is connected to the second slide rail (12) for driving the second slide rail (12) to move along the first direction; the second slide rail (12) is connected to the corresponding support seat assembly (2) for driving the support seat assembly (2) to move along the second direction.

4. The leveling and loading system according to claim 3, characterized in that, It also includes a plurality of first position acquirers (3) and a plurality of second position acquirers (4), wherein the first position acquirers (3) are used to acquire the coordinates of the corresponding support assembly (2) along the first direction, and the second position acquirers (4) are used to acquire the coordinates of the corresponding support assembly (2) along the second direction.

5. The leveling and loading system according to claim 4, characterized in that, The first position acquisition device (3) is located on the first slide rail (11), and the second position acquisition device (4) is located on the second slide rail (12). Both the first position acquisition device (3) and the second position acquisition device (4) are infrared rangefinders. And / or, the ends of the first slide rail (11) and the second slide rail (12) are provided with safety limiters (5) for buffering the support assembly (2).

6. The leveling and loading system according to claim 4, characterized in that, It also includes the controller; The controller signal is connected to the first position acquisition device (3) and the second position acquisition device (4) to acquire the position coordinates of several support points of the workpiece. The support points are the contact points between the workpiece and the output end of the support base assembly (2). The controller signal is connected to the support base assembly (2) and is used to control the height of the output end of the support base assembly (2).

7. The leveling and loading system according to claim 3, characterized in that, Both the first slide rail (11) and the second slide rail (12) include a guide rail (101), a lead screw (102), and a power component; The lead screw (102) is rotatably mounted on the guide rail (101), and the output end of the power component is connected to the end of the lead screw (102) to drive the lead screw (102) to rotate. The support assembly (2) has a threaded connection hole, and the lead screw (102) of the second slide rail (12) passes through the threaded connection hole corresponding to the support assembly (2) and is threadedly engaged with the support assembly (2). The guide rail (101) of the second slide rail (12) has a threaded connection hole, and the lead screw (102) of the first slide rail (11) passes through the threaded connection hole of the second slide rail (12) in the same group and is threadedly engaged with the second slide rail (12).

8. The leveling and loading system according to claim 7, characterized in that, The number of the support base assembly (2) and the slide rail assembly (1) are both four sets; The four sets of slide rail assemblies (1) are the first slide rail assembly, the second slide rail assembly, the third slide rail assembly and the fourth slide rail assembly; The lead screw (102) of the first slide rail (11) in the first slide rail assembly extends along the same center line as the lead screw (102) of the first slide rail (11) in the second slide rail assembly; the lead screw (102) of the first slide rail (11) in the third slide rail assembly extends along the same center line as the lead screw (102) of the first slide rail (11) in the fourth slide rail assembly; Furthermore, the first slide rail (11) in the first slide rail assembly is arranged opposite to the first slide rail (11) in the third slide rail assembly; the first slide rail (11) in the second slide rail assembly is arranged opposite to the first slide rail (11) in the fourth slide rail assembly; The second slide rail (12) in the first slide rail assembly and the second slide rail (12) in the third slide rail assembly are both located between the first slide rail assembly and the first slide rail (11) of the third slide rail assembly; The second slide rail (12) in the second slide rail assembly and the second slide rail (12) in the fourth slide rail assembly are both located between the first slide rail (11) of the second slide rail assembly and the fourth slide rail assembly.

9. The leveling and loading system according to claim 7 or 8, characterized in that, The support assembly (2) includes a base (21) and a telescopic member (22). The base (21) is movable along the first direction and the second direction on the platform. The telescopic member (22) is located on the base (21) in the same group of the support assembly (2).

10. The leveling and loading system according to claim 9, characterized in that, The base (21) has the threaded connection hole; And / or, the telescopic member (22) is a hydraulic cylinder, and the support assembly (2) further includes a hydraulic component (23) for driving the flow of liquid, the outlet of the hydraulic component (23) being connected to the inlet of the telescopic member (22), and the return port of the hydraulic component (23) being connected to the outlet of the telescopic member (22).

11. An ultrasonic water immersion focusing detection system, characterized in that, The leveling and loading system includes any one of claims 1-10.

12. A leveling method, characterized in that, The leveling method, applied to the ultrasonic water immersion focusing detection system of claim 11, comprises: After the workpiece is placed in place, the position coordinates of several support points of the workpiece are obtained. The support points are the contact points between the workpiece and the output end of the support base assembly (2). Adjust the ultrasonic probe to the position coordinates of the target support point, and then control the ultrasonic probe to emit ultrasonic pulses toward the workpiece; Obtain the bottom wave path S at the position coordinates corresponding to several support points, and take one of the bottom wave path S as the reference point path. ; Based on the bottom wave path S and the reference point path Determine the lifting displacement of the output ends of several support assemblies (2); The output ends of several support base assemblies (2) are raised or lowered according to the lifting displacement of their output ends.

13. The leveling method according to claim 12, characterized in that, The reference point sound path It is one of the lowest points in the several bottom wave acoustic paths S.

14. The leveling method according to claim 13, characterized in that, The calculation method for determining the output end lifting displacement of the support assembly (2) is as follows: ； In the formula, K is the calculation coefficient, and , The speed at which ultrasonic waves propagate inside the workpiece. This represents the speed at which ultrasonic waves propagate in water.

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