Calibration device of phased array ultrasonic equipment

Abstract

The utility model discloses a calibration device of phased array ultrasonic equipment, which relates to the technical field of nondestructive testing and is used for calibrating a plurality of spiral probes sequentially arranged along a first direction. The calibration device of the phased array ultrasonic equipment comprises a rack, a linear moving assembly, a rotating assembly, a calibration rod, a supporting assembly and a control unit, the linear moving assembly is movably arranged on the upper side face of the rack in the first direction. The rotating assembly is arranged at the top of the linear moving assembly; the calibration rod is of a cylindrical structure, a standard sample is arranged on the circumference of the calibration rod, the calibration rod is connected to the end part of the movable end of the rotating assembly, and the axis of the calibration rod is parallel to the first direction; the supporting assembly is fixedly arranged at the end, in the first direction, of the upper side face of the rack and used for supporting the calibration rod in an auxiliary mode so that the calibration rod can be kept horizontal. By means of the arrangement, the labor amount of manual calibration can be reduced, and convenience of calibration of the phased array ultrasonic equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of nondestructive testing, in particular to a calibration device for phased array ultrasonic equipment. Background Art

[0002] Phased array ultrasonic equipment uses a set of phased array probes to transmit and receive ultrasonic sound beams, and uses the ultrasonic principle to detect defects in workpieces. The sensitivity consistency of each probe in a group is very important, so the sensitivity consistency of the probes needs to be calibrated regularly. Manual calibration requires very high skills of personnel, and the calibration rod is not light and easy to operate, which is time-consuming and labor-intensive. At the same time, the calibration accuracy is also subject to deviations and doubts due to human factors.

[0003] Therefore, how to provide a calibration device and a calibration method that can conveniently and accurately achieve the sensitivity consistency calibration of the probe is a technical problem that technical personnel in this field currently need to solve. Utility Model Content

[0004] The utility model aims to provide a calibration device which can conveniently and accurately realize the sensitivity consistency calibration of a probe.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A calibration device for a phased array ultrasonic device, used for calibrating a plurality of spiral probes arranged in sequence along a first direction, comprising:

[0007] frame;

[0008] A linear moving assembly is movably disposed on an upper side of the frame along a first direction;

[0009] A rotating assembly is arranged on top of the linear moving assembly;

[0010] The calibration rod is a cylindrical structure, a standard sample is arranged on the circumference of the calibration rod, the calibration rod is connected to the movable end of the rotating assembly, and the axis of the calibration rod is parallel to the first direction;

[0011] The support assembly is fixedly arranged at the end of the upper side surface of the frame along the first direction, and is used to assist in supporting the calibration rod to keep it level.

[0012] Preferably, the linear motion assembly comprises:

[0013] Two mutually parallel linear guide rails, the linear guide rails are arranged on the upper side of the frame along a first direction;

[0014] A slide seat, a slider for cooperating with the linear guide rail is provided at the bottom of the slide seat, and the slide seat is movably mounted on the frame through the slider;

[0015] A first servo motor is fixedly mounted on the slide and is used to provide power for the slide to move;

[0016] The limit switch is installed on the upper side of the frame and is located on the side of the slide away from the support assembly. It is used to prevent the slide from moving out of the frame and to locate the starting point of the slide movement.

[0017] Preferably, the linear motion assembly further comprises: a rack fixedly arranged on the upper side surface of the frame along the first direction, a gear fixedly arranged on the motor shaft end of the servo motor, and the gear meshes with the rack.

[0018] Preferably, the rotating assembly comprises:

[0019] The bearing seat is fixed to the top of the slide by bolts;

[0020] A second servo motor is installed on the side of the bearing seat, and the motor shaft of the second servo motor passes through the bearing seat, and the motor shaft of the second servo motor is arranged along the first direction;

[0021] The rotating head is installed on the bearing seat through a rolling bearing and is connected to the motor shaft of the second servo motor. The side of the rotating head facing away from the bearing seat can be fixedly connected to the end of the calibration rod along the first direction, so that the second servo motor drives the calibration rod to rotate around its axial direction.

[0022] Preferably, the support assembly comprises:

[0023] A support seat, fixedly mounted on the end of the upper side surface of the frame along the first direction by bolts;

[0024] The adapter block is installed in the slot provided on the top of the support seat and is used to cooperate with the two-point horizontal support calibration rod of the rotating head.

[0025] Preferably, the calibration rod is connected to the rotating head via a locking pin.

[0026] Preferably, the cross-section of the adapter block along the first direction is semicircular, and the diameter of the semicircle is the same as the diameter of the calibration rod.

[0027] Preferably, the material of the adapter block is rubber.

[0028] Preferably, both side edges of the frame perpendicular to the first direction are provided with fixing side ears for fixing and installing the frame by means of anchor bolts.

[0029] Compared with the above-mentioned background technology, the utility model provides a calibration device for a phased array ultrasonic equipment, which is used to calibrate a plurality of spiral probes arranged in sequence along a first direction, including: a frame, a linear motion component, a rotating component, a calibration rod, a support component and a control unit; the linear motion component is movably arranged on the upper side of the frame along the first direction; the rotating component is arranged on the top of the linear motion component; the calibration rod is a cylindrical structure, and a standard sample is arranged on the circumference of the calibration rod. The calibration rod is connected to the movable end of the rotating component, and the axis of the calibration rod is parallel to the first direction; the support component is fixed to the end of the upper side of the frame along the first direction, and is used to assist in supporting the calibration rod to keep it horizontal.

[0030] Specifically, one end of the calibration rod is connected to the rotating component, and the other end is auxiliary supported by the supporting component, and the rotating component is arranged on a linear movable component that can move on the frame along a first direction. In this way, the calibration rod can be moved along the first direction to the center position of each probe to be tested with the cooperation of the linear movable component and the rotating component, and then the probe can be calibrated. With such a setting, the calibration rod can be moved by the linear movable component and the rotating component, which can reduce manual labor and improve the convenience of calibrating the phased array ultrasonic equipment. In addition, the alignment of the calibration rod with the center of the probe can be accurately controlled by an external control unit, which facilitates the calibration of the probe. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0032] Figure 1 A schematic diagram of the structure of a calibration device for a phased array ultrasonic device provided in an embodiment of the utility model;

[0033] Figure 2 for Figure 1 Another angle structural diagram;

[0034] Figure 3 This is a schematic diagram of the relative position of the calibration rod and the probe in the embodiment of the utility model;

[0035] Figure 4 for Figure 3 Schematic diagram from another angle;

[0036] Figure 5 The present invention is a flow chart of a calibration method for a phased array ultrasonic device provided by the present invention.

[0037] in:

[0038] 01-probe, 011-first probe, 012-second probe, 013-third probe, 014-fourth probe, 015-fifth probe, 016-sixth probe;

[0039] 100-frame, 110-fixed side ears;

[0040] 210- linear guide rail, 220- slide seat, 230- first servo motor, 240- limit switch;

[0041] 300-calibration rod, 310-standard sample injury;

[0042] 410-bearing seat, 420-second servo motor, 430-rotating head, 440-locking pin;

[0043] 510-support seat, 520-adapter block. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0045] In order to enable those skilled in the art to better understand the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0046] In the description of the present invention, it should be understood that the terms "up", "down", "left" and "right" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the positions or elements referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation of the present invention.

[0047] The utility model aims to provide a calibration device which can conveniently and accurately realize the sensitivity consistency calibration of a probe.

[0048] It should be noted that, in this embodiment, the direction X in the drawings is defined as the first direction.

[0049] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0050] See also Figures 1 to 5The present embodiment provides a calibration device for a phased array ultrasonic device, which is used to calibrate a plurality of spiral probes 01 arranged in sequence along a first direction, and includes: a frame 100, a linear motion component, a rotation component, a calibration rod 300, a support component and a control unit; the linear motion component is movably arranged on the upper side of the frame 100 along the first direction; the rotation component is arranged on the top of the linear motion component; the calibration rod 300 is a cylindrical structure, and a standard sample 310 is arranged on the circumference of the calibration rod 300. The calibration rod 300 is connected to the movable end of the rotation component, and the axis of the calibration rod 300 is parallel to the first direction; the support component is fixed to the end of the upper side of the frame 100 along the first direction, and is used to assist in supporting the calibration rod 300 to keep it horizontal.

[0051] It can be understood that the calibration device of the phased array ultrasonic device is provided with a plurality of probes 01, such as Figure 3 As shown, each spacing distance is certain. In addition, when viewed upward from the first direction, each probe 01 is at a certain angle relative to the adjacent probe 01, that is, all probes 01 are distributed in a spiral shape as a whole. All probes 01 cooperate with each other to detect the complete circumference of the cylindrical workpiece inside. This arrangement is to ensure that the surface of the cylindrical workpiece will not be missed when the workpiece moves. In this embodiment, six probes 01 with an inner arc surface of 63 degrees are preferred. The six probes 01 are mutually abutted when viewed from the first direction. This arrangement can just completely surround the calibration column, and there can be a 0-3 degree overlap between every two probes 01 to prevent the probe 01 from missing the calibration column.

[0052] When each probe 01 detects the same defect, different waveform heights will be displayed due to different parameters set for each probe 01. The device provided in this embodiment needs to use the same standard flaw sample 310 to adjust the sensitivity of the six probes 01 so that the waveform heights displayed by the six probes 01 for the standard flaw sample 310 remain consistent.

[0053] Specifically, the right end of the calibration rod 300 is connected to the rotating assembly, and the left end is supported by the supporting assembly, and the rotating assembly is arranged on the linear moving assembly that can move along the first direction on the frame 100, that is, the rotating assembly is arranged on the top of the linear moving assembly at the right end, and can move with the movement of the linear moving assembly, and the linear moving assembly can move along the first direction, that is, in Figure 1 , Figure 2 and Figure 3The calibration rod 300 can be moved left and right, and the rotating component itself is fixed at one end of the calibration rod 300, which can drive the calibration rod 300 to rotate around its axis. In this way, the calibration rod 300 can be moved along the first direction to the center position of each probe 01 to be tested under the cooperation of the linear moving component and the rotating component, and then the probe 01 can be calibrated, that is, the calibration rod 300 can be moved left and right and rotated around its axis so that the standard sample 310 corresponds to the center of the probe 01. With this arrangement, the calibration rod 300 can be moved by the linear moving component and the rotating component, which can reduce manual labor and improve the convenience of calibrating the phased array ultrasonic equipment. The calibration rod 300 can be accurately aligned with the center of the probe 01 through an external control unit, which is convenient for calibrating the probe 01.

[0054] Preferably, the linear motion component includes: two mutually parallel linear guides 210, a slide 220, a first servo motor 230 and a limit switch 240; two mutually parallel linear guides 210, the linear guide 210 is arranged on the upper side of the frame 100 along the first direction; the slide 220, the bottom of the slide 220 is provided with a slider for cooperating with the linear guide 210, and the slide 220 is movably mounted on the frame 100 through the slider; the first servo motor 230 is fixedly mounted on the slide 220, and is used to provide power for the movement of the slide 220; the limit switch 240 is installed on the upper side of the frame 100 and is located on the side of the slide 220 away from the support assembly, and is used to prevent the slide 220 from moving out of the frame 100 and to locate the starting point of the movement of the slide 220.

[0055] In this embodiment, if Figure 1 and Figure 2 As shown, the linear motion component includes: two mutually parallel linear guides 210, a slide 220, a first servo motor 230 and a limit switch 240. The two mutually parallel linear guides 210 are arranged on the top surface of the frame 100 along the first direction to guide the movement of the linear motion component. The slide 220 is a cubic structure with two sliders at the bottom. The two sliders cooperate with the linear guides 210 respectively, so that the slide 220 can move left and right along the first direction; wherein, in this embodiment, the power source for the movement of the slide 220 is preferably the first servo motor 230; in addition, a limit switch 240 is arranged at the right end position of the frame 100, and the limit switch 240 is just arranged on the right side of the slide 220, that is, the limit switch 240 can prevent the slide 220 from continuing to move to the right to prevent it from exceeding the stroke of the linear guide 210. Of course, the limit switch 240 is also the starting point for the slide 220 to start moving, and the distance moved by the calibration rod 300 can be calculated from this point.

[0056] Preferably, the linear motion assembly further comprises: a rack fixedly arranged on the upper side of the frame 100 along the first direction, a gear fixedly arranged on the motor shaft end of the servo motor, and the gear meshes with the rack.

[0057] It can be understood that the moving distance of the linear motion component needs to be precisely controlled, so in this embodiment, gears and racks are preferably used to transmit the power of the first servo motor 230; specifically, the rack is installed in the first direction directly below the output shaft of the first servo motor 230, and the rack is parallel to the linear guide 210, and a gear is installed on the output shaft of the first servo motor 230 so that the gear and the rack cooperate with each other. In this way, since the first servo motor 230 is installed on the slide 220, when the first servo motor 230 rotates, under the action of the gear and rack, the linear motion component will move along the linear guide 210.

[0058] Preferably, the rotating assembly includes: a bearing seat 410, a second servo motor 420, and a rotating head 430; the bearing seat 410 is fixed to the top of the slide seat 220 by bolts; the second servo motor 420 is installed on the side of the bearing seat 410, and the motor shaft of the second servo motor 420 passes through the bearing seat 410, and the motor shaft of the second servo motor 420 is arranged along the first direction; the rotating head 430 is installed on the bearing seat 410 through a rolling bearing and is connected to the motor shaft of the second servo motor 420, and the side of the rotating head 430 facing away from the bearing seat 410 can be fixedly connected to the end of the calibration rod 300 along the first direction, so that the second servo motor 420 drives the calibration rod 300 to rotate around its axial direction.

[0059] Further, such as Figure 1 and Figure 2 As shown, the rotating component is fixedly installed on the top of the linear moving component, the bearing seat 410 is used to carry other components in the rotating component and is installed on the top of the slide 220 by bolts, and the second servo motor 420 is the power source for the rotating component and is installed on the right side of the bearing seat 410. A rolling bearing is provided inside the bearing seat 410, and a rotating head 430 is nested in the rolling bearing. The left side of the rotating head 430 is used to connect the calibration rod 300, and the right side of the rotating head 430 is connected to the motor shaft of the second servo motor 420; in this way, the second servo motor 420 can be controlled by an external control unit to accurately control the rotation of the calibration rod 300.

[0060] Preferably, the support assembly includes: a support base 510 and an adapter block 520; the support base 510 is fixedly mounted on the end of the upper side surface of the frame 100 along the first direction by bolts; the adapter block 520 is installed in a slot set at the top of the support base 510, and is used to cooperate with the rotating head 430 to horizontally support the calibration rod 300 at two points.

[0061] Understandable, such as Figure 1 As shown, the right end of the calibration rod 300 can be supported by the rotating assembly, but it is difficult for the calibration rod 300 to maintain a horizontal state by only one point of support. Therefore, a support assembly is provided at the left end of the frame 100 to provide auxiliary support for the calibration rod 300; specifically, a support seat 510 is fixedly installed at the leftmost end of the frame 100 by bolts, and then an adapter block 520 is provided on the top of the support seat 510. The adapter block 520 is installed in a slot on the top of the support seat 510, and the adapter block 520 is used to directly contact the calibration rod 300 and support the calibration rod 300 under the action of the support seat 510.

[0062] It should be noted that the height of the support base 510 and the adapter block 520 needs to be adjusted according to actual conditions so as to ensure that the calibration rod 300 is in a horizontal state.

[0063] Preferably, the calibration rod 300 is connected to the rotating head 430 via a locking pin 440 .

[0064] It can be understood that such a configuration can facilitate the installation and replacement of the calibration rod 300, and the calibration rod 300 can be removed after use to prevent it from occupying space.

[0065] Preferably, the cross-section of the adapter block 520 along the first direction is semicircular, and the diameter of the semicircle is the same as the diameter of the calibration rod 300 .

[0066] In this embodiment, the calibration rod 300 is a cylindrical structure, and therefore the shape of the adapter block 520 for supporting the calibration rod 300 is preferably a U-shaped structure, but the curvature of the adapter block 520 is exactly a semicircle with the same diameter as the calibration rod 300; this arrangement enables the adapter block 520 to fit exactly with the calibration rod 300, and can effectively prevent the calibration rod 300 from shaking when rotating or moving.

[0067] Preferably, the material of the adapter block 520 is rubber.

[0068] Rubber has certain elasticity and wear resistance, so the adapter block 520 is preferably made of rubber to prevent it from scratching the calibration rod 300 and extend its service life.

[0069] Preferably, both side edges of the rack 100 perpendicular to the first direction are provided with fixing side ears 110 for fixing and installing the rack 100 by means of anchor bolts.

[0070] like Figure 2 As shown, in order to facilitate the installation of the rack 100, fixed side ears 110 are symmetrically installed on both sides of the rack 100, and the fixed side ears 110 can be installed at a suitable position by bolts.

[0071] like Figure 5As shown, a calibration method for a phased array ultrasonic device is applicable to the calibration device for the phased array ultrasonic device described above. The calibration method for the phased array ultrasonic device specifically comprises the following steps:

[0072] S1, by controlling the linear motion component to move along the first direction, the rotary component drives the calibration rod 300 to rotate, so that the standard sample 310 on the circumference of the calibration rod 300 is aligned with the center of the first probe 01 to be calibrated;

[0073] S2, calibrating the first probe 01 by controlling the rotating assembly to drive the calibration rod 300 to rotate forward and reverse;

[0074] S3. Repeat the above steps S1 and S2 for the next probe 01 along the first direction in sequence until all probes 01 have completed calibration.

[0075] Specifically, the linear moving component is driven by the first servo motor 230, driving the calibration rod 300 to slide on the supporting component, and moving along the axial direction of the probe 01, that is, the first direction, and can accurately move the standard sample damage 310 on the calibration rod 300 to the axial position of the corresponding probe 01, and then the rotating component is driven by the second servo motor 420, driving the calibration rod 300 to rotate on the supporting component, and rotating along the circumferential direction of the probe 01, and can accurately rotate the standard sample damage 310 on the calibration rod 300 to the center position of the corresponding probe 01, and the sample damage waveform can be detected at the center position of the probe 01; After the standard sample flaw 310 is moved into position, the probe 01 starts to detect, and the rotating unit drives the calibration rod 300 to rotate forward and reverse, so that the standard sample flaw 310 is completely detected by the probe 01. After the detection of the probe 01 is completed, the waveform height of the standard sample flaw 310 is displayed, and then the calibration rod 300 continues to move to the center of the next probe 01, so that the standard sample flaw 310 is detected by each probe 01. Among them, when the waveform heights displayed during detection by different probes 01 are inconsistent, it is necessary to make the probe 01 sample flaw waveform height consistent through gain value compensation of the ultrasonic equipment, that is, to adjust the calibration of the sensitivity of the probe 01.

[0076] See also Figure 3 In this embodiment, it is known that the length of the calibration rod 300 is L, and the distance between the standard sample 310 and the front end face of the calibration rod 300 is L1. It is known that when the linear motion assembly is at the origin position, that is, the slide 220 abuts the limit switch 240, the distance between the front end face of the calibration rod 300 and the origin position is L0, and the distance between the front end face of the calibration rod 300 and the first probe 011 is S1. The distances between the first probe 011, the second probe 012, the third probe 013, the fourth probe 014, the fifth probe 015, and the sixth probe 016 are S12, S23, S34, S45, and S56, respectively.

[0077] The linear moving component moves the standard sample defect 310 on the calibration rod 300 to the axial center position under the first probe 011, and the calculated moving distance of the calibration rod 300 relative to the origin is: L1+S1. Similarly, the standard sample defect 310 is moved to the axial center position under the second probe 012, and the calculated moving distance of the calibration rod 300 relative to the origin is: L1+S1+S12; the standard sample defect 310 is moved to the axial center position under the third probe 013, and the calculated moving distance of the calibration rod 300 relative to the origin is: L1+S1+S12+S23; the standard sample defect 310 is moved to the axial center position under the fourth probe 014, and the calculated moving distance of the calibration rod 300 relative to the origin is: The moving distance is: L1+S1+S12+S23+S34; move the standard sample 310 to the axial center position under the fifth probe 015, and calculate the moving distance of the calibration rod 300 relative to the origin position: L1+S1+S1+S12+S23+S34+S45; move the standard sample 310 to the axial center position under the sixth probe 016, and calculate the moving distance of the calibration rod 300 relative to the origin position: L1+S1+S12+S23+S34+S45+S56.

[0078] Please refer to Figure 4 In this embodiment, according to Figure 4 In the angular reference system, it is known that the circumferential center position of the first probe 011 is 15°, the circumferential center position of the second probe 012 is 75°, the circumferential center position of the third probe 013 is 135°, the circumferential center position of the fourth probe 014 is 195°, the circumferential center position of the fifth probe 015 is 255°, and the circumferential center position of the sixth probe 016 is 315°. In addition, the sector scanning angle of each probe 01 in this embodiment is 63°, and the circumferential center position of the standard sample 310 on the calibration rod 300 at the starting position is 0°.

[0079] To summarize the above description, in this embodiment, the method for calibrating each probe 01 is specifically as follows: the first servo motor 230 in the linear moving component works so that the moving distance of the calibration rod 300 relative to the origin position is: L1+S1, at this time, the standard sample flaw 310 is moved to the axial center position under the first probe 011 to complete the axial positioning, and then the second servo motor 420 in the rotating component works, and the calibration rod 300 rotates by an angle of 15°, at this time, the standard sample flaw 310 is moved to the circumferential center position under the first probe 011 to complete the circumferential positioning, after the standard sample flaw 310 is positioned at the axial center position and the circumferential center position of the first probe 011, that is, after the standard sample flaw 310 is aligned with the center of the first probe 011, the rotating component rotates in the forward and reverse directions through the second servo motor 420, and the rotation angle relative to the circumferential center position of the probe 01 is 31.5°, which is half of the fan-shaped scanning angle of the first probe 011, so that the first probe 011 can completely scan and detect the standard sample flaw 310, and then the sensitivity of the first probe 011 is adjusted by the gain value compensation of the ultrasonic equipment. After the first probe 011 is completed, the standard sample 310 is positioned relative to the second probe 012 through external control of the first servo motor 230 and the second servo motor 420, and then the detection is completed by forward and reverse rotation under the action of the second servo motor 420, and the sensitivity of the second probe 012 is adjusted at the same time; and so on, the sensitivity consistency calibration of the first probe 011 to the sixth probe 016 can be completed.

[0080] It should be noted that, in the present embodiment, a total of 6 probes 01 are provided, and the sector scanning angle of each probe 01 is 63°, so the angle of each forward and reverse rotation of the calibration rod 300 is 31.5°. In actual needs, the number of probes 01 and the forward and reverse rotation angles can be adjusted according to actual conditions; in addition, in the present embodiment, the process of moving the standard sample injury 310 on the calibration rod 300 to the center of each probe 01 in turn can be adjusted according to actual conditions, such as rotating first and then moving, or moving and rotating at the same time, as long as the positioning of the standard sample injury 310 on the calibration rod 300 can be completed.

[0081] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0082] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0083] The above is a detailed introduction to the embodiments provided by the utility model. This article uses specific examples to illustrate the principles and implementation methods of the utility model. The description of the above embodiments is only used to help understand the method and core ideas of the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A calibration device for a phased array ultrasonic device, used for calibrating a plurality of probes (01) which are spirally arranged in sequence along a first direction, characterized in that: include: Rack(100); A linear moving component, movably arranged on the upper side of the frame (100) along the first direction; A rotating assembly, disposed on top of the linear moving assembly; The calibration rod (300) is a cylindrical structure, a standard sample (310) is arranged on the circumference of the calibration rod (300), the calibration rod (300) is connected to the movable end of the rotating assembly, and the axis of the calibration rod (300) is parallel to the first direction; A support assembly is fixedly arranged on the end of the upper side surface of the frame (100) along the first direction, and is used to assist in supporting the calibration rod (300) so as to keep it horizontal.

2. The calibration device for phased array ultrasonic equipment according to claim 1, characterized in that: The linear motion component comprises: Two mutually parallel linear guide rails (210), the linear guide rails (210) being arranged on the upper side surface of the frame (100) along the first direction; A slide seat (220), wherein a slider for cooperating with the linear guide rail (210) is provided at the bottom of the slide seat (220), and the slide seat (220) is movably mounted on the frame (100) via the slider; A first servo motor (230) is fixedly mounted on the slide seat (220) and is used to provide power for the slide seat (220) to move; A limit switch (240) is installed on the upper side of the frame (100) and is located on a side of the slide (220) facing away from the support assembly, and is used to prevent the slide (220) from moving out of the frame (100) and to locate a starting point for the movement of the slide (220).

3. The calibration device for phased array ultrasonic equipment according to claim 2, characterized in that: The linear motion component further comprises: a rack fixedly arranged on the upper side surface of the frame (100) along the first direction; a gear is fixedly arranged on the motor shaft end of the servo motor, and the gear is meshed with the rack.

4. The calibration device for phased array ultrasonic equipment according to claim 3, characterized in that: The rotating assembly comprises: A bearing seat (410) fixed to the top of the sliding seat (220) by means of bolts; A second servo motor (420) is mounted on a side of the bearing seat (410), and a motor shaft of the second servo motor (420) passes through the bearing seat (410), and the motor shaft of the second servo motor (420) is arranged along the first direction; A rotating head (430) is mounted on the bearing seat (410) via a rolling bearing and is connected to the motor shaft of the second servo motor (420); a side of the rotating head (430) facing away from the bearing seat (410) can be fixedly connected to the end of the calibration rod (300) along the first direction, so that the second servo motor (420) drives the calibration rod (300) to rotate around its axis.

5. The calibration device for phased array ultrasonic equipment according to claim 4, characterized in that: The support assembly comprises: A support seat (510) is fixedly mounted on an end portion of an upper side surface of the frame (100) along the first direction by means of bolts; The adapter block (520) is installed in a slot provided at the top of the support seat (510) and is used to cooperate with the rotating head (430) to horizontally support the calibration rod (300) at two points.

6. The calibration device for phased array ultrasonic equipment according to claim 4, characterized in that: The calibration rod (300) is connected to the rotating head (430) via a locking pin.

7. The calibration device for phased array ultrasonic equipment according to claim 5, characterized in that: The cross-section of the adapter block (520) along the first direction is semicircular, and the diameter of the semicircle is the same as the diameter of the calibration rod (300).

8. The calibration device for phased array ultrasonic equipment according to claim 7, characterized in that: The material of the adapting block (520) is specifically rubber.

9. The calibration device for phased array ultrasonic equipment according to claim 1, characterized in that: Both side edges of the frame (100) perpendicular to the first direction are provided with fixing side ears (110) for fixing and installing the frame (100) by means of anchor bolts.

Images