CN214150418U - Measuring head integrating laser measurement and ultrasonic flaw detection - Google Patents
Measuring head integrating laser measurement and ultrasonic flaw detection Download PDFInfo
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- CN214150418U CN214150418U CN202023093772.4U CN202023093772U CN214150418U CN 214150418 U CN214150418 U CN 214150418U CN 202023093772 U CN202023093772 U CN 202023093772U CN 214150418 U CN214150418 U CN 214150418U
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Abstract
The utility model discloses a gauge head of integrated laser survey and ultrasonic inspection. The existing geometric measurement and flaw detection are carried out step by step, and the detection process is complicated. The front panel and the back panel of the utility model are fixed; the first shaft is supported on the front panel and the rear panel through bearings, and the first transmission gear is fixed on the first shaft and driven by the driving piece; the laser emitter is fixed with the first shaft; the second shaft is supported on the front panel and the rear panel through bearings, and the second transmission gear is fixed on the second shaft and meshed with the first transmission gear; the transmission ratio of the first transmission gear to the second transmission gear is 1; the optical ultrasonic receiver is fixed with the second shaft; the fixing seat is fixed with the front panel, and the laser displacement sensor is fixed with the fixing seat. The utility model discloses integrated laser survey and laser ultrasonic flaw detection in an organic whole, solved prior art with the geometry measure with detect a flaw the substep go on, the loaded down with trivial details problem of testing process, reduced the time cost of detection.
Description
Technical Field
The utility model belongs to non-contact measurement and supersound nondestructive test field, in particular to integrated laser survey and ultrasonic inspection's gauge head.
Background
In the field of non-contact measurement, the main adopted methods are as follows: laser triangulation, structured light, binocular stereovision, etc. The laser triangulation method has the characteristics of high measurement precision, high measurement speed, relatively low measurement cost and the like, and is widely applied to the aspects of reverse engineering curved surface measurement, geometric quantity measurement, part shape measurement and the like.
In the field of ultrasonic nondestructive inspection, contact type and non-contact type are classified according to whether the ultrasonic nondestructive inspection is in contact with a measured object. The non-contact nondestructive testing mainly adopts the following methods: air coupled ultrasound, electromagnetic ultrasound, laser ultrasound, and the like. In addition, the air coupling ultrasonic detection has low efficiency and narrow frequency band due to the difficulty in matching the acoustic impedance of the transducer with air, so that the sensitivity and the resolution of the whole detection system are influenced; the electromagnetic ultrasonic detection is only suitable for ferromagnetic materials, so that the electromagnetic ultrasonic detection has certain limitation on the flaw detection of non-metallic materials or composite materials; the laser ultrasonic flaw detection method is characterized in that a laser emits pulse laser to generate ultrasonic waves on the surface of a detected object, then receives the ultrasonic waves generated by a laser beam in the detected material through an optical method, and performs a series of treatments to detect the flaw on the surface of the detected object, so that the method can realize quick and real-time detection, is suitable for detecting metal and nonmetal materials, and can also emit ultrasonic signals in gas and liquid, and therefore, the laser ultrasonic detection technology can be widely applied.
The generation mechanism of laser ultrasound is mainly two types:
1. a thermal bomb mechanism: the pulse laser is emitted to the surface of an object to be measured, when the optical power density of the laser is lower than the damage threshold of the solid surface, the generated heat energy is not enough to melt the solid surface, partial laser energy is absorbed by the material to cause local temperature rise, and surface motion generated by pressure change caused by material thermal expansion drive and unit area momentum change forms ultrasonic waves.
2. The thermal corrosion mechanism is as follows: when the laser power density is high, part of the energy is absorbed by the object to be measured and converted into heat energy, the temperature of the solid surface rises, and the surface of the object to be measured is locally melted and gasified to perforate or generate serious deformation. Although the thermoelastic excitation effect is still present at this time, the ablation excitation effect plays a decisive role.
At present, in practical application scenes, the geometric measurement and flaw detection operation processes mostly adopt a detection mode of separation and time division, so that the time cost of detection is increased, the detection efficiency is reduced, and the method is a potential cost loss link for practical application and production sites. For this purpose, patent publication No. CN201548222U discloses a three-coordinate measuring apparatus with an ultrasonic flaw detection system, which mainly includes: the detection device, the data acquisition and processing system and the ultrasonic flaw detection system realize the functions of simultaneously measuring and detecting flaws of the measured object; however, the method relates to the improvement of the overall structure of the three-coordinate measuring machine, so that the three-coordinate measuring machine has single functionality and relatively high cost, and in addition, the probe detection is adopted and is a contact type measurement, so that a measured object can be damaged to a certain extent. Further, patent publication No. CN110208373U discloses an ultrasonic flaw detector for a steel pipe having a dimension measuring function, which mainly includes: the box body, the roller mechanism, the feeding mechanism, the flaw detection mechanism, the size measurement mechanism and the like realize the functions of measuring the geometric dimension of the steel pipe and detecting flaws; however, the device is mainly designed for steel pipes and belongs to special equipment; meanwhile, a part size measuring and flaw detecting robot is disclosed in patent publication No. CN109675820A, which mainly includes: the part size measurement flaw detection robot body, the feeding mechanism, the slide bar moving mechanism, the manipulator material conveying mechanism, the discharging mechanism and the like realize the integrated integration of measurement and flaw detection, but the real-time feedback of the measurement value and the flaw detection condition of a certain measurement point of a measured object cannot be realized, and the measurement and flaw detection are actually performed step by step.
In summary, the current devices for integrating measurement and flaw detection mainly focus on three schemes: 1. the structure of the measuring machine body is improved, so that the cost is high; 2. special equipment is designed aiming at the detected object, and the function is single; 3. the measuring and flaw detecting mechanisms are sequentially and respectively arranged in one device, actually, the measuring and flaw detecting mechanisms are also carried out step by step, and the simultaneous real-time feedback of the geometric quantity and the damage condition of a measured point cannot be realized.
Disclosure of Invention
The utility model provides a not enough to prior art, the utility model provides a gauge head of integrated laser survey and ultrasonic inspection, this gauge head integrated laser survey and laser ultrasonic inspection in an organic whole to through step motor drive gear speed reduction transmission, and guarantee laser emitter and laser ultrasonic receiver's real-time synchronization reverse motion through two gear drive that the drive ratio is 1, can react rapidly and surveyed the geometric parameters and the damage condition of some, obviously improved detection efficiency.
The utility model comprises a front panel, a rear panel, a driving piece, a first transmission gear, a second transmission gear, a first shaft, a laser emitter, a second shaft, a laser ultrasonic receiver, a fixed seat and a laser displacement sensor; the front panel and the rear panel are fixed; the first shaft is supported on the front panel and the rear panel through bearings, and the first transmission gear is fixed on the first shaft and is positioned between the front panel and the rear panel; the first transmission gear is driven by the driving piece; the laser emitter is fixed with the first shaft; the second shaft is supported on the front panel and the rear panel through bearings, and the second transmission gear is fixed on the second shaft and is positioned between the front panel and the rear panel; the second drive gear meshes with first drive gear, and the drive ratio of first drive gear and second drive gear is 1: 1; the optical ultrasonic receiver is fixed with the second shaft; the fixed seat is fixed with the front panel, and the laser displacement sensor is fixed with the fixed seat; the signal output ends of the laser displacement sensor and the laser ultrasonic receiver are both connected with the controller, and the driving piece is controlled by the controller. The laser beam of the laser displacement sensor is parallel to the front panel, and the laser beam of the laser displacement sensor is coplanar with the laser beam of the laser emitter; the intersection point of the laser beam of the laser transmitter and the central axis of the laser ultrasonic receiver coplanar with the laser beam of the laser transmitter is positioned on the straight line where the laser beam of the laser displacement sensor is positioned; the central axis of the first shaft is vertical to the laser beam of the laser displacement sensor, and the center of the light projecting lens of the laser displacement sensor is positioned on a plane passing through the central axis of the first shaft and the central axis of the second shaft.
Preferably, the first holding frame A is fixed at one end of the first shaft; the first fixing frame A and the first fixing frame B are connected through a first bolt and a first nut and clamp the laser emitter.
Preferably, the second holder A is fixed at one end of the second shaft; the second fixing frame A is connected with the second fixing frame B through a first bolt and a first nut, and clamps the laser ultrasonic receiver.
Preferably, the fixing seat consists of a fixing seat wing plate and a fixing seat bottom plate which are integrally formed; the fixing seat bottom plate is connected with the front panel through a second bolt and a second nut, and the laser displacement sensor is fixed on the fixing seat wing plate through a first screw.
Preferably, the driving member comprises a stepping motor and a driving gear; the shell of the stepping motor is fixedly connected with the rear panel through a second screw; a driving gear is fixed on an output shaft of the stepping motor; the driving gear is meshed with the first transmission gear; the transmission ratio of the driving gear to the first transmission gear is greater than 1; the stepper motor is controlled by a controller.
More preferably, the transmission ratio of the driving gear to the first transmission gear is Z2/Z 14, wherein Z1Number of teeth of driving gear, Z2The number of teeth of the first transmission gear 20.
Preferably, the connecting seat is connected with the front panel and the rear panel through a third screw; the connecting seat is provided with an integrally formed cylindrical rod.
Preferably, the front panel and the rear panel are connected through four studs, and two ends of each stud are respectively connected with a third nut for compressing the front panel and the rear panel; the diameter of the middle unthreaded thread section of the stud is larger than the diameter of the thread with the thread sections at the two ends.
Preferably, the laser emitter is a pulse laser emitter.
Preferably, the laser displacement sensor is a point laser displacement sensor.
The utility model has the advantages that:
1. the utility model discloses integrated laser survey and laser ultrasonic flaw detection in an organic whole, solved prior art with the geometry measure with detect a flaw the substep go on, the loaded down with trivial details problem of testing process, reduced the time cost of detection.
2. The utility model discloses a step motor drive, through gear reduction drive, and guarantee laser emitter and laser ultrasonic receiver's synchronous reverse motion through two gear drive that the drive ratio is 1, realize the real-time tracking to the laser displacement sensor measuring point.
3. The utility model discloses a structure principle is simple, the reliable operation, and detection efficiency is high, cost low relatively.
Drawings
FIG. 1 is a perspective view of the overall structure of the present invention;
fig. 2 is a side view of the overall structure of the present invention;
FIG. 3 is a rear view of FIG. 2;
FIG. 4 is a schematic diagram of the real-time measurement of the attitude of the present invention
FIG. 5 is a perspective view of the fixing base of the present invention;
fig. 6 is an assembly view of the first shaft and the first holder a according to the present invention;
fig. 7 is an assembly view of the second shaft and the second holder a according to the present invention;
fig. 8 is a schematic diagram of the calculation of the rotation angle of the laser transmitter and the laser ultrasonic receiver according to the present invention;
fig. 9 is a schematic view of the laser triangulation method adopted by the middle laser displacement sensor of the present invention.
In the figure: 1. the laser displacement sensor comprises a laser transmitter, 2, first fixing frames B and 3, a laser displacement sensor, 4, a fixing seat, 5, first screws, 6, second fixing frames B and 7, a laser ultrasonic receiver, 8, first nuts, 9, second components, 9-1, second shafts, 9-2, second fixing frames A and 10, second bolts, 11, a front panel, 12, double-headed studs, 13, third nuts, 14, a rear panel, 15, a second transmission gear, 16, third screws, 17, a connecting seat, 18, a stepping motor, 19, second screws, 20, a first transmission gear, 21, a driving gear, 22, a first component, 22-1, a first shaft, 22-2, first fixing frames A and 23, first bolts, 24 and bearings.
Detailed Description
The present invention is explained in detail below with reference to the drawings.
As shown in fig. 1, 2, 3 and 4, the probe integrating laser measurement and ultrasonic flaw detection includes a front panel 11, a rear panel 14, a driving member, a first transmission gear 20, a second transmission gear 15, a first shaft 22-1, a laser emitter 1, a second shaft 9-1, a laser ultrasonic receiver 7, a fixed seat 4 and a laser displacement sensor 3; the front panel 11 and the rear panel 14 are fixed; the first shaft 22-1 is supported on the front panel 11 and the rear panel 14 through a bearing 24, and the first transmission gear 20 is fixed on the first shaft 22-1 and is positioned between the front panel 11 and the rear panel 14; the first transmission gear 20 is driven by the driving member; the laser emitter 1 is fixed with the first shaft 22-1; the second shaft 9-1 is supported on the front panel 11 and the rear panel 14 through bearings, and a second transmission gear 15 is fixed on the second shaft 9-1 and is positioned between the front panel 11 and the rear panel 14; the second transmission gear 15 is meshed with the first transmission gear 20, and the transmission ratio of the first transmission gear 20 to the second transmission gear 15 is 1: 1; the optical ultrasonic receiver 7 is fixed with the second shaft 9-1; the fixed seat 4 is fixed with the front panel 11, and the laser displacement sensor 3 is fixed with the fixed seat 4; the signal output ends of the laser displacement sensor 3 and the laser ultrasonic receiver 7 are both connected with a controller, and the driving piece is controlled by the controller. As shown in fig. 4 and 8, the laser beam of the laser displacement sensor 3 is parallel to the front panel 11, and the laser beam of the laser displacement sensor 3 is coplanar with the laser beam of the laser emitter 1; the intersection point of the laser beam of the laser transmitter 1 and the central axis of the laser ultrasonic receiver 7 coplanar with the laser beam of the laser transmitter 1 is positioned on the straight line where the laser beam of the laser displacement sensor 3 is positioned; the central axis of the first shaft 22-1 is perpendicular to the laser beam of the laser displacement sensor 3, and the center of the light projecting lens of the laser displacement sensor 3 is located on a plane passing through the central axis of the first shaft 22-1 and the central axis of the second shaft 9-1.
As a preferred embodiment, as shown in FIGS. 1 and 6, the first shaft 22-1, the first holder A22-2, and the first holder B2 comprise a first assembly 22; the first holding frame A22-2 is fixed at one end of the first shaft 22-1; the first holder A22-2 and the first holder B2 are connected by a first bolt 23 and a first nut 8, and clamp the laser transmitter 1.
As a preferred embodiment, as shown in FIGS. 1 and 7, the second shaft 9-1, the second holder A9-2 and the second holder B6 constitute a second assembly 9; the second holding frame A9-2 is fixed at one end of the second shaft 9-1; the second holder a9-2 and the second holder B6 are connected by the first bolt 23 and the first nut 8, and clamp the laser ultrasonic receiver 7.
As a preferred embodiment, as shown in fig. 1 and 5, the fixing seat 4 is composed of a fixing seat wing plate 4-2 and a fixing seat bottom plate 4-1 which are integrally formed; the fixing seat bottom plate 4-1 is connected with the front panel 11 through a second bolt 10 and a second nut, and the laser displacement sensor 3 is fixed on the fixing seat wing plate 4-2 through a first screw 5.
As a preferred embodiment, as shown in fig. 1, the driving member includes a stepping motor 18 and a driving gear 21; the shell of the stepping motor 18 is fixedly connected with the rear panel 14 through a second screw 19; a driving gear 21 is fixed on an output shaft of the stepping motor 18; the driving gear 21 is meshed with the first transmission gear 20; the transmission ratio of the driving gear 21 to the first transmission gear 20 is greater than 1; the stepper motor 18 is controlled by a controller.
As a more preferred embodiment, the driving toothThe gear ratio of the wheel 21 to the first transmission gear 20 is Z2/Z 14, wherein Z1Number of teeth of the driving gear 21, Z2The number of teeth of the first transmission gear 20.
As a preferred embodiment, as shown in fig. 1, the connection holder 17 is connected with the front panel 11 and the rear panel 14 by a third screw 16; the connecting seat 17 is provided with an integrally formed cylindrical rod; the cylindrical rod can be fixed on the Z axis of the three-coordinate measuring machine, so that the whole device is installed on the three-coordinate measuring machine.
As a preferred embodiment, as shown in fig. 1, the front panel 11 and the rear panel 14 are connected by four studs 12, and both ends of the studs 12 are respectively connected with third nuts 13 pressing the front panel 11 and the rear panel 14; the diameter of the middle unthreaded section of the stud 12 is greater than the major diameter of the threads with threaded sections at both ends.
In a preferred embodiment, the laser transmitter 1 is a pulsed laser transmitter, the laser emitted by the laser transmitter 1 is incident on the surface of the object to be measured to generate ultrasonic waves through a thermo-elastic mechanism, and the laser ultrasonic receiver 7 is capable of receiving the ultrasonic waves generated by the laser emitted by the laser transmitter 1 and incident on the surface of the object to be measured through the thermo-elastic mechanism.
As a preferred embodiment, the laser displacement sensor 3 is a spot laser displacement sensor.
The measuring head integrating laser measurement and ultrasonic flaw detection has the working principle as follows:
1. the front plate 11 and the rear plate 14 are fixed on the Z-axis of the coordinate measuring machine (the cylindrical bar of the connecting base 17 is inserted into the Z-axis of the coordinate measuring machine, and the cylindrical bar is fixed with the Z-axis of the coordinate measuring machine by tightening the clamping bolt), and the laser beam of the laser displacement sensor 3 is made parallel to the Z-axis of the coordinate measuring machine.
2. Placing a measured object in a platform measuring area of a three-coordinate measuring machine; the measured object can be ensured to be completely measured by adjusting the placing posture of the measured object. Then, a measurement coordinate system is established with X, Y, Z coordinate axes of the coordinate measuring machine.
3. The Z axis of the three-coordinate measuring machine translates along the Z coordinate axis, the position of the laser displacement sensor 3 on the Z coordinate axis is adjusted, and the displacement delta x of an imaging point of a measured point on the photoelectric detector, which is measured by the laser displacement sensor 3, relative to the intersection point of the base imaging optical axis and the photoelectric detector is 0; the base point imaging optical axis is an imaging optical axis on the laser displacement sensor 3 when the laser beam of the laser displacement sensor 3 is irradiated on the measurement base point. Then, the rotation angle of the stepping motor 18 is adjusted so that the laser beam of the laser transmitter 1 and the laser beam of the laser displacement sensor 3 intersect on the measurement base point of the laser displacement sensor 3.
4. Under the driving of the Z axis of the three-coordinate measuring machine to translate along the X or Y coordinate axis, the laser displacement sensor 3 carries out scanning measurement on the surface of the measured object; at each measured point position, the laser displacement sensor 3 transmits the measured delta x to a computer through a controller, the computer calculates the distance x between the current measured point and a measurement base point by adopting a laser triangulation measurement value expression, saves the coordinate value of the current measured point, and then calculates the rotation angle of the laser transmitter 1 and the laser ultrasonic receiver 7 and the rotation angle psi of the stepping motor 18 according to the x; then, the computer controls the stepping motor 18 to rotate the angle psi through the controller, so that the intersection point of the laser beam of the laser emitter 1 and the laser beam of the laser displacement sensor 3 is superposed with the current measured point; and finally, the controller transmits the damage signal of the current measured point measured by the laser ultrasonic receiver 7 to the computer, and the computer correspondingly stores the coordinate value of the current measured point and the damage signal.
5. After the whole surface of the measured object is scanned and measured, the computer stores the data of the coordinate values of the measured points at each position and the damage signals in one-to-one correspondence, thereby completing the laser measurement and ultrasonic flaw detection of the measured object. Subsequently, the computer can judge the damage condition of the measured point at each position on the surface of the measured object through signal processing.
As shown in fig. 9, the laser triangulation expression is as follows:
in the formula, α is an included angle between a laser beam of the laser displacement sensor 3 and a base point imaging optical axis of the laser displacement sensor 3; x is the distance between the measured point and the measurement base point; l is the distance from the intersection point of the laser beam of the laser transmitter 1 and the imaging optical axis of the base point to the center of the imaging lens of the laser displacement sensor 3; l' is the distance between the intersection point of the base point imaging optical axis and a photoelectric detector (PSD) on the laser displacement sensor 3 and the center of the imaging lens; beta is an included angle between the photoelectric detector and the imaging optical axis of the base point; Δ x is the displacement of the imaging point of the measured point on the photoelectric detector relative to the intersection point of the imaging optical axis of the base point and the photoelectric detector; l, l', alpha and beta are all known parameters of the laser displacement sensor when leaving the factory; when the imaging point of the measured point on the photoelectric detector moves to the right relative to the imaging optical axis of the base point and the intersection point of the photoelectric detector, the measured point is positioned above the measuring base point and plus or minus is taken, otherwise, the measured point is positioned below the measuring base point and plus or minus is taken.
As shown in fig. 4, 8 and 9, when the distance between the measured point and the measurement base point in the measurement is x, the rotation angle Δ δ of the corresponding laser transmitter 1 or laser ultrasonic receiver 7 is calculated as follows:
in the formula I1Is the distance between the central axis of the first shaft 22-1 and the laser beam of the laser displacement sensor 3; lxIs the distance from the center of the light projecting lens of the laser displacement sensor 3 to the measurement base point, lxF is the focal length of the light projecting lens in the laser displacement sensor 3.
Rotation angle of the stepping motor 18:
where ψ is the rotation angle of the stepping motor 18, Z1Number of teeth of driving gear, Z2The number of teeth of the first transmission gear.
When the Δ x is reduced, the Z-direction coordinate of the current measured point measured by the laser displacement sensor 3 is smaller than the Z-direction coordinate of the last measured point (the surface height of the measured object is reduced), the rotating directions of the laser transmitter 1 and the laser ultrasonic receiver 7 are both directions deviating from the laser displacement sensor 3, and the rotating direction of the stepping motor 18 is opposite to the rotating direction of the laser transmitter 1; when Δ x increases, the Z-coordinate of the current measured point measured by the laser displacement sensor 3 is greater than the Z-coordinate of the last measured point (the height of the measured object surface increases), then the rotation directions of the laser transmitter 1 and the laser ultrasonic receiver 7 are both the directions turning to the laser displacement sensor 3, and the rotation direction of the stepping motor 18 is opposite to the rotation direction of the laser transmitter 1.
As shown in FIGS. 8 and 9, when the laser beam of the laser emitter 1 and the laser beam of the laser displacement sensor 3 intersect at the measurement base point of the laser displacement sensor 3, the angle δ between the laser beam of the laser emitter 1 and the plane passing through the central axes of the first shaft 22-1 and the second shaft 9-1 is the same as the angle δ between the laser beam of the laser emitter 1 and the plane passing through the central axes of the first shaft 22-1 and the second shaft 9-11The calculation is as follows:
Claims (10)
1. the measuring head integrates laser measurement and ultrasonic flaw detection, and comprises a front panel, a rear panel, a fixed seat and a laser displacement sensor, wherein the front panel and the rear panel are fixed; the method is characterized in that: the laser ultrasonic wave generator further comprises a driving piece, a first transmission gear, a second transmission gear, a first shaft, a laser transmitter, a second shaft and a laser ultrasonic wave receiver; the first shaft is supported on the front panel and the rear panel through bearings, and the first transmission gear is fixed on the first shaft and is positioned between the front panel and the rear panel; the first transmission gear is driven by the driving piece; the laser emitter is fixed with the first shaft; the second shaft is supported on the front panel and the rear panel through bearings, and the second transmission gear is fixed on the second shaft and is positioned between the front panel and the rear panel; the second transmission gear is meshed with the first transmission gear, and the transmission ratio of the first transmission gear to the second transmission gear is 1: 1; the optical ultrasonic receiver is fixed with the second shaft; the fixed seat is fixed with the front panel, and the laser displacement sensor is fixed with the fixed seat; the signal output ends of the laser displacement sensor and the laser ultrasonic receiver are both connected with the controller, and the driving piece is controlled by the controller; the laser beam of the laser displacement sensor is parallel to the front panel, and the laser beam of the laser displacement sensor is coplanar with the laser beam of the laser emitter; the intersection point of the laser beam of the laser transmitter and the central axis of the laser ultrasonic receiver coplanar with the laser beam of the laser transmitter is positioned on the straight line where the laser beam of the laser displacement sensor is positioned; the central axis of the first shaft is vertical to the laser beam of the laser displacement sensor, and the center of the light projecting lens of the laser displacement sensor is positioned on a plane passing through the central axis of the first shaft and the central axis of the second shaft.
2. The integrated laser measurement and ultrasonic inspection probe of claim 1, wherein: the first fixing frame A is fixed at one end of the first shaft; the first fixing frame A and the first fixing frame B are connected through a first bolt and a first nut and clamp the laser emitter.
3. The integrated laser measurement and ultrasonic inspection probe of claim 1, wherein: the second holding frame A is fixed at one end of the second shaft; the second fixing frame A is connected with the second fixing frame B through a first bolt and a first nut, and clamps the laser ultrasonic receiver.
4. The integrated laser measurement and ultrasonic inspection probe of claim 1, wherein: the fixing seat consists of a fixing seat wing plate and a fixing seat bottom plate which are integrally formed; the fixing seat bottom plate is connected with the front panel through a second bolt and a second nut, and the laser displacement sensor is fixed on the fixing seat wing plate through a first screw.
5. The integrated laser measurement and ultrasonic inspection probe of claim 1, wherein: the driving piece comprises a stepping motor and a driving gear; the shell of the stepping motor is fixedly connected with the rear panel through a second screw; a driving gear is fixed on an output shaft of the stepping motor; the driving gear is meshed with the first transmission gear; the transmission ratio of the driving gear to the first transmission gear is greater than 1; the stepper motor is controlled by a controller.
6. The integrated laser measurement and ultrasonic inspection probe of claim 5, wherein: the transmission ratio of the driving gear to the first transmission gear is Z2/Z14, wherein Z1Number of teeth of driving gear, Z2The number of teeth of the first transmission gear 20.
7. The integrated laser measurement and ultrasonic inspection probe of claim 1, wherein: the connecting seat is connected with the front panel and the rear panel through a third screw; the connecting seat is provided with an integrally formed cylindrical rod.
8. The integrated laser measurement and ultrasonic inspection probe of claim 1, wherein: the front panel and the rear panel are connected through four double-end studs, and two ends of each double-end stud are respectively connected with a third nut for compressing the front panel and the rear panel; the diameter of the middle unthreaded thread section of the stud is larger than the diameter of the thread with the thread sections at the two ends.
9. The integrated laser measurement and ultrasonic inspection probe of claim 1, wherein: the laser emitter is a pulse laser emitter.
10. The integrated laser measurement and ultrasonic inspection probe of claim 1, wherein: the laser displacement sensor is a point type laser displacement sensor.
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| CN202023093772.4U CN214150418U (en) | 2020-12-21 | 2020-12-21 | Measuring head integrating laser measurement and ultrasonic flaw detection |
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| CN202023093772.4U CN214150418U (en) | 2020-12-21 | 2020-12-21 | Measuring head integrating laser measurement and ultrasonic flaw detection |
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