CN110196285B - Large-scale ring piece multi-face array ultrasonic automatic detection device and method - Google Patents

Large-scale ring piece multi-face array ultrasonic automatic detection device and method Download PDF

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CN110196285B
CN110196285B CN201910425837.3A CN201910425837A CN110196285B CN 110196285 B CN110196285 B CN 110196285B CN 201910425837 A CN201910425837 A CN 201910425837A CN 110196285 B CN110196285 B CN 110196285B
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ring piece
face
probes
probe
servo motor
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CN110196285A (en
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汪小凯
李力
华林
钱东升
潘晓萌
关山月
何溪明
王彬
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Wuhan University of Technology WUT
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/22—Details, e.g. general constructional or apparatus details
    • G01N29/26—Arrangements for orientation or scanning by relative movement of the head and the sensor
    • G01N29/265—Arrangements for orientation or scanning by relative movement of the head and the sensor by moving the sensor relative to a stationary material
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/22—Details, e.g. general constructional or apparatus details
    • G01N29/28—Details, e.g. general constructional or apparatus details providing acoustic coupling, e.g. water
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/023—Solids
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/028—Material parameters
    • G01N2291/0289—Internal structure, e.g. defects, grain size, texture

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Abstract

The invention belongs to the technical field of ultrasonic nondestructive testing, and provides a multi-surface array ultrasonic automatic detection device and a method for large ring pieces, wherein the device comprises a supporting platform, a driving wheel for pushing the ring pieces to rotate, a driven wheel for fixing the ring pieces, a rolling shaft for supporting the ring pieces, an inner and outer circumferential surface array probe moving along the Z-axis direction of the detection platform, an upper end surface array probe and a lower end surface array probe moving along the Y-axis direction of the detection platform, a multi-channel ultrasonic detector, an industrial personal computer, a control cabinet and the like; the array probes on the inner circumference and the outer circumference are used for detecting the defects of the ring piece at different radial depths, and the array probes on the upper end face and the lower end face are used for detecting the defects of the ring piece at different axial depths. The method realizes quantitative detection of the internal defects of the ring piece by using the multi-face array probe, and has the advantages of high detection efficiency, simple operation, small detection blind area, high detection precision, strong adaptability and the like.

Description

Large-scale ring piece multi-face array ultrasonic automatic detection device and method
Technical Field
The invention belongs to the technical field of ultrasonic nondestructive testing, and particularly relates to a multi-surface array ultrasonic automatic detection device and method for a large ring piece.
Background
The ring product is widely applied to industries such as wind power generation, power transmission, ship equipment, engineering machinery, light industry machinery, metallurgical machinery and the like, has the working characteristics of frequent braking, repetition, large impact load, alternating stress action and the like in service, and is required to have high strength, high toughness and good fatigue resistance. Ring rolling is the preferred process technology for producing high-performance annular forgings at present, but various types of defects are generated inside the ring during the rolling process, wherein the most common defects are hole defects. When the size of the hole defect exceeds the standard, the use performance of the ring piece is greatly influenced, and huge potential safety hazards are left.
At present, ultrasonic flaw detection is the most common method for detecting internal defects of ring pieces, and whether products are qualified or not is judged according to obtained flaw detection results. When a ring manufacturing factory detects internal defects of the ring, a manual detection method is generally adopted, and a detector holds a straight probe, an inclined probe or a bicrystal probe by hand and directly contacts with the end face or the outer circular face of the ring through a coupling agent. However, the method has the problems that the detection result of the method is very easily influenced by the operation experience and the fatigue degree of detection personnel, the detection efficiency is low, the omission factor is high, the detection blind area is large, and the quantitative detection of the defects is difficult to realize.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides the multi-face array ultrasonic automatic detection device and the method for the large ring piece.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a multi-face array ultrasonic automatic detection device for large rings comprises a supporting platform of a whole detection system, a rack, a driven wheel arranged in the supporting platform, a driving wheel arranged in the supporting platform, a servo motor for pushing the driven wheel to move along an X-axis direction, a driving wheel servo motor for driving the driving wheel to roll clockwise, an X-axis linear module, an X-axis servo motor for driving the X-axis linear module to move along a rack track, a Y-axis servo motor for driving the Y-axis linear module to move along the rack track, a Z-axis linear module, a Z-axis servo motor for driving the Z-axis linear module to move along the supporting platform axially, upper and lower end face array probes arranged on the Z-axis linear module, inner and outer end face array probes arranged on the Z-axis linear module, and a multi-channel ultrasonic detector connected with the inner and outer circle array probes and the upper and lower end face array probes, The industrial personal computer is connected with the multi-channel ultrasonic detector, and the control cabinet is connected with the industrial personal computer; the control cabinet is respectively connected with the driven wheel servo motor, the driving wheel servo motor, the X axial servo motor, the Y axial servo motor and the Z axial servo motor, the inner circular surface array probe and the outer circular surface array probe comprise a row of a plurality of probes with the same frequency and the same size, the inner circular surface array probe detects the defect close to the outer circular surface, the outer circular surface array probe detects the defect close to the inner circular surface, the upper end surface array probe and the lower end surface array probe comprise a row of a plurality of probes with the same frequency and the same size, the upper end surface array probe detects the defect close to the lower end surface, and the lower end surface array probe detects the defect close to the upper end.
In the above technical scheme, the Z-axis linear module is provided with an inner and outer circular surface probe fixture for fixing the inner and outer circular surface array probe so that the wafer plane is tangent to the inner and outer circular surfaces of the ring, and the inner and outer circular surface array probe fixture is arranged along the axial direction of the ring, and the inner and outer circular surface array probe fixture is provided with a water retention cover having a water inlet and a water outlet.
In the technical scheme, the Z-axis linear module is provided with an upper end face probe clamp and a lower end face probe clamp which are used for fixing the upper end face array probe and the lower end face array probe, so that the wafer planes of the upper end face array probe and the lower end face array probe are parallel to the upper end face and the lower end face of the ring piece and are arranged along the radial direction of the ring piece, the upper end face array probe clamp and the lower end face array probe clamp are provided with water retention covers.
In the technical scheme, the detection ranges of the inner circular surface array probe and the outer circular surface array probe are continuous, and the sum of the actual detection range of the inner circular surface and the actual detection range of the outer circular surface is not less than the thickness of the ring piece; the detection range of the multi-surface array probe with the upper end surface and the lower end surface is continuous, and the sum of the actual detection range of the upper end surface and the actual detection range of the lower end surface is not less than the height of the ring piece.
In the technical scheme, the inner and outer circular surface array probes and the upper and lower end surface array probes are both a line of low-frequency probes, and the frequency of the low-frequency probes is 2 MHz-5 MHz.
In the technical scheme, the device further comprises a noise filter, and the noise filter is arranged between the control cabinet and all the servo motors.
In the above technical scheme, the X-axis linear module and the X-axis servo motor are both mounted on the frame, the Y-axis linear module and the Y-axis servo mechanism are mounted on the X-axis linear module, the Z-axis linear module and the Z-axis servo motor are mounted on the Y-axis linear module, the X-axis servo motor is used for driving the Y-axis linear module to move longitudinally on the X-axis linear module, the Y-axis servo motor is used for driving the Z-axis linear module to move transversely on the Y-axis linear module, the Z-axis servo motor is used for driving the probe clamp to move axially on the Z-axis linear module, and the plane formed by the transverse and longitudinal directions are perpendicular to each other and parallel to the support platform.
Correspondingly, the invention also provides a large ring multi-face array ultrasonic automatic nondestructive testing method based on the device, which comprises the following steps:
(1) placing the ring pieces on the supporting platform in the same axial direction, driving a driven wheel push rod to start working by a driven wheel servo motor, driving the driven wheel to move by the push rod, fixing the initial position of the ring pieces and enabling the ring pieces to be tightly attached to the driving wheel; the initial positions of the inner and outer circular surface array probes and the upper and lower end surface array probes are respectively positioned at the upper edge of the inner and outer circular surfaces of the ring piece and the outer edges of the upper and lower end surfaces of the ring piece, the wafer planes of the inner and outer circular surface array probes are tangent to the circumferential surface of the ring piece and are arranged along the axial direction of the ring piece, a certain lifting distance is arranged between the wafer planes of the inner and outer circular surface array probes and the circumferential surface of the ring piece, the wafer planes of the end surface array probes are parallel to the end surface of the ring piece and are arranged along the radial direction of the ring piece, a certain lifting distance is arranged between the wafer planes of;
(2) starting the multi-channel ultrasonic detector, starting detection by all probes, driving the driven wheel by the driven wheel servo motor to generate certain pressure to keep the position of the circle center of the ring piece unchanged in the rotating process, driving the driving wheel by the driving wheel servo motor to rotate at a constant speed so as to drive the ring piece to rotate around the axis of the ring piece at a constant speed, and completing detection of one circle of the ring piece by all the probes when the ring piece rotates for one circle and returns to an initial point;
(3) and (3) driving the Z-axis linear module to drive the end face array probe to move for a distance delta Y along the radial direction of the ring piece by a Y-axis servo motor, wherein the moving direction points to the inner hole of the ring piece, the delta Y is (1-S). m.d, m is the number of the probes in each row of the end face array probe, S is the repeated coverage rate of the probes, and d is the diameter of a wafer of the probes, driving a probe clamp by a Z-axis servo motor to drive the inner and outer circular array probe to move for a distance delta Z along the axial direction of the ring piece, the moving direction points to the bottom of the ring piece, the delta Z is (1-S). n.d, n is the number of the probes in each row of the inner and outer circular array probes, and repeating the step (2) until the end face array probe moves to the edge of the inner hole of the ring piece and the.
In the above technical scheme, in the step (1), the lift-off distances between the inner and outer circular surface array probes and the inner and outer circular surfaces of the ring piece, and between the upper and lower end surface array probes and the upper and lower end surfaces of the ring piece are all xd。
In the technical scheme, in the step (1), the water-retaining cover is attached to the surface of the ring piece.
In the technical scheme, in the step (2), the rotation angular speed of the ring piece is 0.2-1 rad/s.
The invention has the following beneficial effects: 1. the multi-surface array probe is adopted, so that the defects of different depths can be detected in a layered mode from the end face and the circumferential face according to the size of the ring piece, the detection precision is high, the scanning speed is high, and the detection blind area is small; 2. the whole-process automatic detection is realized through the control circuit, the operation is simple, and the influence of human errors on the detection result is avoided; 3. compared with a direct contact method, the local liquid immersion method has better coupling effect, the coupling effect cannot be influenced by the surface quality of the ring piece, and the influence of a near field region on a detection result can be eliminated by the water layer on the surfaces of the probe and the ring piece to be detected; 4. in the detection process, the probe does not need to be in direct contact with the ring to be detected, and the service life of the probe is prolonged. The automatic ring piece detecting device can meet all requirements of automatic detection of large ring pieces with different sizes.
Drawings
FIG. 1 is a schematic structural diagram of a multi-face array ultrasonic automatic detection device for a large ring piece according to the present invention.
FIG. 2 is a schematic top view of the multi-face array ultrasonic automatic detection device for large ring pieces of the present invention.
Fig. 3 is a schematic view of the displacement of the end face probe array of the present invention.
Fig. 4 is a schematic diagram of the principle of ultrasonic scanning of an end face probe array in the present invention.
Fig. 5 is a schematic view of the displacement of the circumferential surface probe array of the present invention.
Fig. 6 is a schematic diagram of the principle of ultrasound scanning of a circumferential surface probe array of the present invention.
FIG. 7 is a diagram of an array of low frequency probes of the present invention, S1Representing the overlap width, S, of the low frequency probe1＝S×d。
The meaning of the reference symbols in the figures: 1-X axial linear module, 2-Y axial linear module, 3-Z axial linear module, 4-Y axis servo motor, 5-inner circular surface array probe, 6-upper end surface array probe, 7-Z axis servo motor, 8-X axis servo motor, 9-noise filter, 10-control cabinet, 11-industrial personal computer, 12-multi-channel ultrasonic detector, 13-probe clamp, 14-lower end surface array probe, 15-ring piece, 16-supporting platform, 17-water retention cover, 18-outer circular surface array probe, 19-frame, 20-water pump, 21-coupling agent collecting tank, 22-driving wheel servo motor, 23-driving wheel, 24-driven wheel, 25-driven wheel servo motor and 26-driven wheel push rod.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In a specific embodiment of the present invention, as shown in fig. 1 and 2, a multi-face array ultrasonic automatic detection apparatus for a large ring piece includes a supporting platform 16 equipped with rollers, a frame 19, a driven wheel 24 disposed in the supporting platform 16, a driving wheel 23 disposed outside the supporting platform 16, a driven wheel servo motor 25 for pushing the driven wheel 24 to radially extrude the ring piece 15 along the supporting platform 16, a driving wheel servo motor 22 for driving the driving wheel 23 to roll clockwise, an X-axis linear module 1, an X-axis servo motor 8 for driving the X-axis linear module 1 to move along the frame 19, a Y-axis linear module 2, a Y-axis servo motor 4 for driving the Y-axis linear module 2 to move along the frame 19, a Z-axis linear module 3 for driving the Z-axis linear module 3 to move along the supporting platform 16, An upper end surface array probe 6 and a lower end surface array probe 14 which are arranged on the Z-axis linear module 3, an inner end surface probe 5 and an outer end surface array probe 18 which are arranged on the Z-axis linear module 3, a multi-channel ultrasonic detector 12 which is connected with the inner and outer circular surface array probes, the upper and lower end surface array probes, an industrial personal computer 11 which is connected with the multi-channel ultrasonic detector 12, and a control cabinet 10 which is connected with the industrial personal computer 11; the control cabinet 10 is respectively connected with a driven wheel servo motor 25, a driving wheel servo motor 22, an X axial servo motor 8, a Y axial servo motor 4 and a Z axial servo motor 7, the inner and outer circular surface array probes comprise a row of a plurality of probes with the same frequency and the same size, the inner circular surface array probe 5 detects the defect close to the outer circular surface, the outer circular surface array probe 18 detects the defect close to the inner circular surface, the upper and lower end surface array probes comprise a row of a plurality of probes with the same frequency and the same size, the upper end surface array probe 6 detects the defect close to the lower end surface, and the lower end surface array probe 14 detects the defect close to the upper end surface.
In a preferred embodiment of the present invention, as shown in fig. 1, 2, 5 and 6, an inner and outer circular probe holder 13 is mounted on the Z-axis linear module 3 for adjusting the angle of the inner and outer circular array probe to make the wafer plane parallel to the inner and outer circular surfaces of the ring 15 and axially arranged along the ring 15, the probe holder 13 is mounted with a water-retaining cover 17, and the water-retaining cover 17 has a couplant injection hole.
In a preferred embodiment of the present invention, as shown in fig. 1, 2, 3 and 4, an upper end face probe clamp 13 and a lower end face probe clamp 13 are mounted on the Z-axis linear module 3, and are used for adjusting the angle of the upper end face array probe and the lower end face array probe to enable the wafer planes of the upper end face array probe and the lower end face array probe to be parallel to the upper end face and the lower end face of the ring member 15, and the upper end face array probe and the lower end face array probe are arranged along the radial direction of the ring member 15, the.
In a preferred embodiment of the present invention, as shown in fig. 6, the detection ranges of the inner and outer circular surface array probes are continuous, and the sum of the actual detection range of the inner circular surface and the actual detection range of the outer circular surface is not less than the thickness of the ring; the detection range of the multi-surface array probe with the upper end surface and the lower end surface is continuous, and the sum of the actual detection range of the upper end surface and the actual detection range of the lower end surface is not less than the height of the ring piece.
In the preferred embodiment of the present invention, as shown in fig. 4 and 6, the inner and outer circular array probes and the upper and lower end surface array probes are both a row of low frequency probes, and the frequency of the low frequency probes is 2MHz to 5 MHz. Each column comprises a plurality of probes with the same frequency, and each column comprises four probes in the embodiment, so that the detection efficiency is improved.
In the preferred embodiment of the present invention, as shown in fig. 1, the apparatus further comprises a noise filter 9, and the noise filter 9 is disposed between the control cabinet 10 and all the servo motors for eliminating the influence of the noise generated by the servo motors on the ultrasonic detection result.
In a preferred embodiment of the present invention, as shown in fig. 1, the X-axis linear module 1 and the X-axis servo motor 8 are both mounted on the frame 19, the Y-axis linear module 2 and the Y-axis servo motor 4 are mounted on the X-axis linear module 1, the Z-axis linear module 3 and the Z-axis servo motor 7 are mounted on the Y-axis linear module 2, the X-axis servo motor 8 is used for driving the Y-axis linear module 2 to move transversely on the X-axis linear module 1, the Y-axis servo motor 5 is used for driving the Z-axis linear module 3 to move longitudinally on the Y-axis linear module 2, the Z-axis servo motor 7 is used for driving the probe clamp 13 to move axially on the Z-axis linear module 3, and the transverse direction and the longitudinal direction are perpendicular to each other and form a plane perpendicular to the axis of the support platform 16.
Correspondingly, the embodiment of the invention also provides a ring piece 15 multi-face array ultrasonic automatic nondestructive testing method based on the device, which comprises the following steps:
and S1, coaxially placing the ring piece 15 on the supporting platform 16, driving a driven wheel push rod 26 to start working by the driven wheel servo motor 25, driving the driven wheel 24 to move by the push rod, fixing the initial position of the ring piece 15 and enabling the ring piece to be tightly attached to the driving wheel 23. The initial positions of the inner and outer circular array probes and the upper and lower end face array probes are respectively positioned at the upper edge of the inner and outer circular faces of the ring piece and the outer edges of the upper and lower end faces, the wafer planes of the inner and outer circular array probes are tangent to the circumferential face of the ring piece and are arranged along the axial direction of the ring piece 15, a certain lifting distance is arranged between the wafer planes and the circumferential face of the ring piece, the wafer planes of the end face array probes are parallel to the end face of the ring piece and are arranged along the radial direction of the ring piece 15, a certain lifting distance is arranged between the wafer planes and the end face of the ring piece 15, a coupling agent is injected into the water-retaining;
s2, starting the multi-channel ultrasonic detector 12, starting detection by all probes, driving the driven wheel servo motor 25 to push the driven wheel 24 to generate a certain pressure to keep the position of the circle center unchanged in the rotation process of the ring piece, driving the driving wheel servo motor 22 to drive the driving wheel 23 to rotate at a constant speed so as to drive the ring piece 15 to rotate at a constant speed around the axis of the ring piece, completing detection of one circle of the ring piece 15 by all the probes when the ring piece 15 rotates for one circle to return to the initial point, transmitting detected ultrasonic signals to the multi-channel ultrasonic detector 12 in the detection process, and converting the received ultrasonic signals into ultrasonic scanning oscillograms by the multi-channel ultrasonic detector 12 and transmitting the ultrasonic scanning;
s3, driving the Z-axis linear module 3 to drive the end face array probe to move along the radial direction of the ring piece 15 by a distance delta Y through the Y-axis servo motor 4, wherein the moving direction points to the inner hole of the ring piece 15, the delta Y is (1-S) · m · d, m is the number of the probes in each row of the end face array probe, S is the repeated coverage rate of the probes, d is the wafer diameter of the probes, and simultaneously, driving the probe clamp 13 to drive the inner and outer circular surface array probes to move for a distance delta Z along the axial direction of the ring piece 15 by a Z-axis servo motor 7, wherein the moving direction points to the bottom of the ring piece 15, the delta Z is (1-S). n.d, and n is the number of the probes in each row of the inner and outer circular surface array probes, and repeating the step S2 until the end surface array probes move to the edge of the inner hole of the ring piece 15 and the circumferential surface array probes move to the bottom of the ring piece 15, namely completing the ultrasonic signal acquisition and recording of the ring piece 15.
In a preferred embodiment of the present invention, in step S1, the inner and outer circular array probe and collarThe distances of the array probes between the inner and outer circular surfaces of the ring piece 15 and between the upper and lower end surfaces of the ring piece 15 are xd。
In the preferred embodiment of the present invention, in step S1, the water retention mask 17 is attached to the surface of the ring 15.
In a preferred embodiment of the present invention, in step S2, the rotation angular velocity of the ring 15 is 0.2 to 1 rad/S.
The probes adopted in the embodiment are all conventional ultrasonic straight probes, and the detection precision can be greatly improved by adopting different detection surfaces to simultaneously carry out layered detection in the thickness direction and the height direction of the ring piece. The low-frequency probe has a large detection range, but has the problems that the detection blind area is large, and in comparison, the blind area at the far end of the detection range is smaller than the blind area at the near surface, so that when the shallow defect is detected, the defect reflected wave possibly appears in the blind area, and the defect is not beneficial to a system to find the defect, therefore, different detection surfaces are selected to convert the shallow defect into the deep defect.
When the detection device is installed, as shown in fig. 1, the detection device has five degrees of freedom, and the ring member to be detected is positioned on the upper surface of the supporting platform 16 and is fixed with the driving wheel 23 through the driven wheel 24; each probe clamp clamps the corresponding probe and freely moves in three directions of X, Y, Z axes by using a moving unit of a linear module (X, Y, Z axis), and the linear module is installed on the rack 19; the noise filter is connected with each servo motor and the control cabinet through cables.
When the ring piece is detected, the method comprises the following steps:
1. an initialization device: matching and positioning the device and the ring piece to be detected by adjusting the linear module, wherein the initial positions of the probes are all at the edge of the outer circular surface, the array probes of the outer circular surface of the circumferential surface of the detection ring piece are just opposite to the center of the ring piece, water is injected into the water-retaining cover until the water-retaining cover is filled with the water, and the water is continuously injected in the detection process;
2. setting detection parameters: starting a multi-channel ultrasonic detector, inputting detection parameters such as the outer diameter D of the ring piece to be detected, the wall thickness, the height h, the material sound velocity c, the rotation angular velocity omega of the ring piece and the like into equipment, and automatically adjusting the angle of each supporting roller by a supporting platform according to the input parameters;
3. collecting and recording detection signals:
3.1, driving a driving wheel to drive the ring piece to rotate at an angular speed omega at a constant speed through a driving wheel servo motor, and after the ring piece rotates for a circle, the ring piece returns to an initial point and the probe completes scanning of the ring piece for one circle;
3.2, in the detection process, the multi-face array probe sends the detected ultrasonic signals to a multi-channel ultrasonic detector, the multi-channel ultrasonic detector converts the received ultrasonic signals into an ultrasonic A-scan oscillogram, the ultrasonic A-scan oscillogram mainly displays interface waves (signals of initial waves emitted by ultrasonic waves reflected by the contact surface of water and the ring) and primary bottom waves (signals of the ultrasonic waves reflected by the bottom of the ring) and echo signals reflected by defects inside the ring, the abscissa represents the defect depth, and the ordinate represents the amplitude of the echo signals, when the probe detects internal defects, obvious defect echo signals can be generated between the interface waves and the primary bottom waves, and finally all detected ultrasonic A-scan oscillograms are transmitted to the industrial personal computer by the multi-channel ultrasonic detector through the network port, and the industrial personal computer processes the ultrasonic A-scan oscillograms by using programmed software;
3.3, controlling the upper end face array probe and the lower end face array probe to move along the radial direction of the ring piece by a distance delta y through a linear module servo motor, wherein the moving direction points to the inner hole of the ring piece, the delta y is (1-S) m.d, controlling the inner and outer circular face array probe to move by a distance delta z along the height direction of the ring piece through the linear module servo motor, the moving direction points to the bottom of the ring piece, the delta z is (1-S) n.d, and repeating the steps 3.1-3.2 until the upper end face probe and the lower end face probe move to the edge of the inner hole of the ring piece and the inner and outer circular face probe;
3.4, processing the ultrasonic A-scan oscillogram by the industrial personal computer by using the programmed software to obtain ultrasonic B-scan images and ultrasonic C-scan images of the ring piece, determining the size and position information of the defect inside the ring piece, and detecting the time t for one ring piece, wherein t is (2 pi/w) x ([/delta y ] + 1);
3.5, taking out the detected ring piece, detecting the next ring piece, repeating the step 3.1 to the step 3.4, and if the size of the next ring piece is consistent with that of the detected ring piece after the position of the probe is adjusted, resetting detection parameters;
4. and (4) storing a detection result: and storing the ring multi-face array ultrasonic nondestructive testing result in an industrial personal computer, displaying the ring multi-face array ultrasonic nondestructive testing result in the form of ultrasonic B-scan and C-scan images, attaching the position and size information of the defects, and obtaining an ultrasonic A-scan oscillogram of each defect.
Details not described in the present specification belong to the prior art known to those skilled in the art.
It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.

Claims (6)

1. The utility model provides a large-scale ring piece multiaspect array supersound automatic checkout device which characterized in that: the system comprises a supporting platform of the whole detection system, a rack, a driven wheel arranged in the supporting platform, a driving wheel arranged outside the supporting platform, a servo motor for pushing the driven wheel to move along the X-axis direction, a driving wheel servo motor for driving the driving wheel to roll clockwise, an X-axis linear module, an X-axis servo motor for driving the X-axis linear module to move along a rack track, a Y-axis linear module, a Y-axis servo motor for driving the Y-axis linear module to move along the rack track, a Z-axis linear module, a Z-axis servo motor for driving the Z-axis linear module to move along the supporting platform axially, upper and lower end face array probes arranged on the Z-axis linear module, inner and outer circular face array probes arranged on the Z-axis linear module, a multi-channel ultrasonic detector connected with the inner and outer circular array probes and the upper and lower end face array probes, an ultrasonic detector, The industrial personal computer is connected with the multi-channel ultrasonic detector, and the control cabinet is connected with the industrial personal computer; the control cabinet is respectively connected with the driven wheel servo motor, the driving wheel servo motor, the X-axis servo motor, the Y-axis servo motor and the Z-axis servo motor, the inner and outer circular surface array probes comprise a row of a plurality of probes with the same frequency and the same size, the inner circular surface array probe detects the defect close to the outer circular surface, the outer circular surface array probe detects the defect close to the inner circular surface, the upper and lower end surface array probes comprise a row of a plurality of probes with the same frequency and the same size, the upper end surface array probe detects the defect close to the lower end surface, and the lower end surface array probe detects the defect close to the upper end surface; the Z-axis linear module is provided with an inner circular surface probe clamp and an outer circular surface probe clamp, the inner circular surface probe clamp and the outer circular surface probe clamp are used for fixing the inner circular surface array probe and the outer circular surface array probe, the wafer planes of the inner circular surface array probe and the outer circular surface array probe are tangent, and the inner circular surface array probe and the outer circular surface array probe are arranged along the axial direction of the ring piece; the Z-axis linear module is provided with an upper end face probe clamp and a lower end face probe clamp, the upper end face probe clamp and the lower end face probe clamp are used for fixing the upper end face array probe and the lower end face array probe to enable the wafer plane of the upper end face array probe and the wafer plane of the lower end face array probe to be parallel to the upper end face and the lower end face of the ring piece and are arranged along the radial direction of the ring piece, the upper end; the detection range of the inner circular surface array probe and the detection range of the outer circular surface array probe are continuous, and the sum of the actual detection range of the inner circular surface and the actual detection range of the outer circular surface is not less than the thickness of the ring piece; the detection ranges of the upper end face multi-surface array probe and the lower end face multi-surface array probe are continuous, and the sum of the actual detection range of the upper end face and the actual detection range of the lower end face is not less than the height of the ring piece; the inner and outer circular surface array probes and the upper and lower end surface array probes are both a line of low-frequency probes, and the frequency of the low-frequency probes is 2 MHz-5 MHz.
2. The multi-face array ultrasonic automatic detection device for the large-sized ring according to claim 1, characterized in that: the device also comprises a noise filter which is arranged between the control cabinet and all the servo motors.
3. The multi-face array ultrasonic automatic detection device for the large-sized ring according to claim 1, characterized in that: the X-axis linear module and the X-axis servo motor are both installed on the rack, the Y-axis linear module and the Y-axis servo mechanism are installed on the X-axis linear module, the Z-axis linear module and the Z-axis servo motor are installed on the Y-axis linear module, the X-axis servo motor is used for driving the Y-axis linear module to move longitudinally on the X-axis linear module, the Y-axis servo motor is used for driving the Z-axis linear module to move transversely on the Y-axis linear module, the Z-axis servo motor is used for driving the probe clamp to move axially on the Z-axis linear module, and the plane which is perpendicular to the longitudinal direction and formed by the Z-axis servo motor is parallel to the supporting platform.
4. The inspection method of the multi-face array ultrasonic automatic inspection device for the large ring according to claim 1, characterized in that the method comprises the following steps:
(1) the method comprises the following steps that a ring piece is coaxially placed on a supporting platform, a driven wheel servo motor drives a driven wheel push rod to start working, the push rod drives a driven wheel to move, the initial position of the ring piece is fixed, the ring piece is enabled to be tightly attached to a driving wheel, the initial positions of an inner circular surface array probe, an outer circular surface array probe, an upper end surface array probe and a lower end surface array probe are respectively located on the upper edge of the inner circular surface of the ring piece and the outer edges of the upper end surface and the lower end surface of the ring piece, the wafer plane of the inner circular surface array probe and the outer circular surface of the ring piece are tangent to the circumferential surface of the ring piece and are arranged along the axial direction of the ring piece, a certain lift-off distance is arranged between the wafer plane of the inner circular surface array probe and;
(2) starting the multi-channel ultrasonic detector, starting detection by all probes, driving the driven wheel by the driven wheel servo motor to generate certain pressure to keep the position of the circle center of the ring piece unchanged in the rotating process, driving the driving wheel by the driving wheel servo motor to rotate at a constant speed so as to drive the ring piece to rotate around the axis of the ring piece at a constant speed, and completing detection of one circle of the ring piece by all the probes when the ring piece rotates for one circle and returns to an initial point;
(3) and (3) driving the Z-axis linear module to drive the end face array probe to move for a distance delta Y along the radial direction of the ring piece by a Y-axis servo motor, wherein the moving direction points to the inner hole of the ring piece, the delta Y is (1-S). m.d, m is the number of the probes in each row of the end face array probe, S is the repeated coverage rate of the probes, and d is the diameter of a wafer of the probes, driving a probe clamp by a Z-axis servo motor to drive the inner and outer circular array probe to move for a distance delta Z along the axial direction of the ring piece, the moving direction points to the bottom of the ring piece, the delta Z is (1-S). n.d, n is the number of the probes in each row of the inner and outer circular array probes, and repeating the step (2) until the end face array probe moves to the edge of the inner hole of the ring piece and the.
5. The detection method of the multi-face array ultrasonic automatic detection device for the large-sized ring according to claim 4, wherein the detection method comprises the following steps: in the step (1), the lifting distances between the inner and outer circular surface array probes and the inner and outer circular surfaces of the ring piece and between the upper and lower end surface array probes and the upper and lower end surfaces of the ring piece are xd(ii) a The water-retaining cover is attached to the surface of the ring piece.
6. The detection method of the multi-face array ultrasonic automatic detection device for the large-sized ring according to claim 4, wherein the detection method comprises the following steps: in the step (2), the rotation angular velocity of the ring piece is 0.2 to 1 rad/s.
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