CN112505136B - Curved surface detection device based on magnetic memory and detection method thereof - Google Patents
Curved surface detection device based on magnetic memory and detection method thereof Download PDFInfo
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- CN112505136B CN112505136B CN202011359523.7A CN202011359523A CN112505136B CN 112505136 B CN112505136 B CN 112505136B CN 202011359523 A CN202011359523 A CN 202011359523A CN 112505136 B CN112505136 B CN 112505136B
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Abstract
The invention discloses a curved surface detection device based on magnetic memory and a detection method thereof, which are characterized in that one end of a fixed frame is arranged at the top of a movable frame, casters are arranged at the bottom of the movable frame, two fixed clamps are arranged at the other end of the fixed frame and are respectively close to two sides of the fixed frame, a motor frame is correspondingly clamped on two fixed clamps, a driving motor is arranged on a motor frame, a turntable is arranged on a motor shaft of the driving motor, a cylindrical pin is arranged on a turntable, the cylindrical pin is close to the edge of the turntable, and two support frames are respectively arranged at two ends of the motor frame.
Description
Technical Field
The invention discloses a curved surface detection device based on magnetic memory and a detection method thereof, relates to a device capable of performing magnetic memory detection on a curved surface of a component, and belongs to the technical field of nondestructive detection. In particular to a curved surface detection device which adaptively supports a curved surface through a spring structure on a vertical sliding rod, ensures the detection distance between a magnetic memory sensor and the surface of the curved surface, drives the vertical sliding rod to reciprocate through eccentric rotation of a cylindrical pin and matching with a guide block, expands the detection point of the magnetic memory sensor and further ensures the detection accuracy of the detection point.
Background
The metal magnetic memory detection technology is a rapid nondestructive detection method for detecting stress concentration parts of parts by utilizing metal magnetic memory effect, can diagnose stress concentration parts in ferromagnetic metal components, namely microscopic defects, early failures, damages and the like, and prevents sudden fatigue damage, and is a novel detection means in the field of nondestructive detection.
The utility model discloses a magnetic memory detection device for curved surface, including the circular arc bottom plate, install a cooperation cover subassembly that has the slot on the circular arc bottom plate at least, wherein inserted a movable detection spare on having at least one slot, movable detection spare includes an expansion plate of inserting the slot, the expansion plate rear end is equipped with the trompil, still installs elastic component on the expansion plate trompil, little wheel and magnetic memory sensor probe are installed to the expansion plate front end, the lowest point of magnetic memory sensor probe is slightly higher than the lowest point of little wheel, the arc bottom plate intermediate position still vertical fixation has the dolly install axial displacement sensor and radial displacement sensor on the dolly, its detection mode is multiple spot detection when detecting, can't form the cover type detection to the curved surface, detects and has the region of not scanning, detects data accuracy and reduces by a wide margin.
Disclosure of Invention
In order to improve the situation, the curved surface detection device and the detection method based on the magnetic memory provide the curved surface detection device which adaptively supports the curved surface through the spring structure on the vertical sliding rod, ensures the detection distance between the magnetic memory sensor and the surface of the curved surface, drives the vertical sliding rod to reciprocate through eccentric rotation of the cylindrical pin and matching with the guide block, expands the detection point of the magnetic memory sensor, and further ensures the detection accuracy of the magnetic memory sensor.
The invention discloses a curved surface detection device based on magnetic memory, which is realized by the following steps: the invention relates to a curved surface detection device based on magnetic memory, which consists of a supporting device, a driving device and a guiding device, wherein the supporting device consists of a movable frame, a fixed frame, truckles and fixed clamps, one end of the fixed frame is arranged at the top of the movable frame, the bottom of the movable frame is provided with the truckles, the two fixed clamps are arranged at the other end of the fixed frame and are respectively close to two sides of the fixed frame, the driving device consists of a supporting frame, a hinged lug, a turntable, a cylindrical pin, a driving motor and a motor frame, the motor frame is correspondingly clamped on the two fixed clamps, the driving motor is arranged on the motor frame, the turntable is arranged on a motor shaft of the driving motor, the cylindrical pin is arranged on the turntable, the cylindrical pin is close to the edge of the turntable, the two supporting frames are respectively arranged at two ends of the motor frame, a plurality of stiffening ribs are arranged between the supporting frames, one end of each supporting frame is provided with a sliding groove, the hinged earlobe is vertically arranged at the other end of the supporting frame, the hinged earlobe is provided with a mounting hole, the connecting sleeve of the guiding device, a spring, a vertical sliding rod, a transverse sliding rod, universal casters, a connecting plate, a magnetic memory sensor and a guiding block, the two supporting frames are connected through the transverse sliding rod, the transverse sliding rod is correspondingly arranged in the sliding groove and is attached to the wall of the sliding groove, the guiding block is arranged on the turntable, the guiding block is provided with a waist-shaped groove corresponding to the cylindrical pin, the waist-shaped groove extends towards the direction of the transverse sliding rod, the guiding block is connected with the transverse sliding rod through the connecting rod, a plurality of connecting sleeves are equidistantly arranged on the transverse sliding rod through connecting columns, the vertical sliding rod is arranged inside the connecting sleeve, a limiting plate is arranged at one end of the vertical sliding rod, the spring is arranged between the limiting plate and the connecting sleeve, the universal casters are arranged at the other end of the vertical sliding rod, the magnetic memory sensor is arranged on the vertical sliding rod through a connecting plate and is close to the other end of the vertical sliding rod, the vertical sliding rod is of a hollow structure, and lubricating grease is arranged inside the vertical sliding rod;
further, the magnetic memory sensor is a BGU-PVC model of KFG brand in Switzerland;
the invention relates to a using method of a curved surface detection device based on magnetic memory, which comprises the following steps:
1) The plurality of curved surface detection devices are connected through the mounting holes on the hinge lugs and the fixing bolts, so that the plurality of curved surface detection devices are matched for use, the number of the magnetic memory detection units is expanded, and meanwhile, the curvature detection requirements of different curved surfaces can be better adapted by adjusting the mounting angles between two adjacent curved surface detection devices;
2) The curved surface detection device is moved to a curved surface to be detected, and at the moment, the vertical sliding rod fixed by each magnetic memory sensor is in sliding connection with the connecting sleeve, so that the universal castor on the other end of the vertical sliding rod overcomes the elastic stress of the spring and props against the curved surface;
3) Starting a driving motor, wherein a motor shaft of the driving motor drives a turntable to rotate, and the turntable drives a cylindrical pin to eccentrically rotate, so that the cylindrical pin drives a guide block to transversely reciprocate, and the guide block drives a transverse sliding rod to transversely reciprocate, so that a detection point of a magnetic memory sensor is expanded, the detection of the magnetic memory sensor is not limited to point detection, and the range and the accuracy of the magnetic memory detection are improved;
4) Simultaneously, remove the movable frame and drive a plurality of curved surface detection device and remove along the curved surface that needs to detect, the universal caster remains the state of laminating with the curved surface all the time and slides to this guarantees the detection distance of magnetic memory sensor and curved surface, until the completion detects the magnetic memory of curved surface.
Has the beneficial effects of.
1. The adaptability detection can be carried out on the reducing curved surface.
2. The reciprocating motion can be performed, so that the magnetic memory detection area and range are greatly enlarged, and the detection accuracy is improved.
3. The magnetic memory sensor can not deflect in angle during the detection of the magnetic memory sensor, and the detection data is more accurate.
4. Simple structure, convenience and practicality.
5. Low cost and convenient popularization.
Drawings
FIG. 1 is a perspective structure diagram of a curved surface detection device based on magnetic memory;
FIG. 2 is a perspective exploded view of a curved surface detection device based on magnetic memory;
FIG. 3 is a perspective structure diagram of a curved surface detection device support frame based on magnetic memory;
fig. 4 is a schematic structural diagram of a curved surface detecting device based on magnetic memory, which only shows the structure of a single set of supporting frames.
In the accompanying drawings
Wherein the method comprises the following steps: the movable frame (1), the fixed frame (2), the support frame (3), the articulated ear (4), the connecting sleeve (5), the spring (6), the vertical slide bar (7), the truckle (8), fixation clamp (9), fixing bolt (10), horizontal slide bar (11), universal truckle (12), connecting plate (13), magnetic memory sensor (14), carousel (15), cylindric lock (16), driving motor (17), motor frame (18), guide block (19).
The specific embodiment is as follows:
the invention discloses a curved surface detection device based on magnetic memory, which is realized by the following steps: the invention relates to a curved surface detection device based on magnetic memory, which consists of a support device, a driving device and a guiding device, wherein the support device consists of a movable frame (1), a fixed frame (2), casters (8) and fixed clamps (9), one end of the fixed frame (2) is arranged at the top of the movable frame (1), the casters (8) are arranged at the bottom of the movable frame (1), the two fixed clamps (9) are arranged at the other end of the fixed frame (2) and respectively close to two sides of the fixed frame (2), the driving device consists of a supporting frame (3), a hinging lug (4), a turntable (15), a cylindrical pin (16), a driving motor (17) and a motor frame (18), the motor frame (18) is correspondingly clamped on the two fixed clamps (9), the driving motor (17) is arranged on the motor frame (18), the turntable (15) is arranged on a motor shaft of the driving motor (17), the turntable (15) is provided with a cylindrical pin (16), the cylindrical pin (16) is close to the edge of the turntable (15), the two supporting frames (3) are respectively arranged at two ends of the motor frame (18), the two supporting frames (3) are respectively provided with a plurality of stiffening grooves which are arranged between the supporting frames (3) and one end (4) is provided with a plurality of vertical stiffening grooves, the utility model discloses a magnetic memory device, which is characterized in that a mounting hole is formed in a hinge lug (4), a guide device connecting sleeve (5), a spring (6), a vertical sliding rod (7), a transverse sliding rod (11), universal casters (12), a connecting plate (13), a magnetic memory sensor (14) and a guide block (19), wherein two supporting frames (3) are connected through the transverse sliding rod (11), the transverse sliding rod (11) is correspondingly arranged in a sliding groove and is attached to the wall of the sliding groove, the guide block (19) is arranged on a rotary table (15), a waist-shaped groove corresponding to a cylindrical pin (16) is formed in the guide block (19), the waist-shaped groove extends towards the direction of the transverse sliding rod (11), the guide block (19) is connected with the transverse sliding rod (11) through a connecting rod, a plurality of connecting sleeves (5) are equidistantly arranged on the transverse sliding rod (11), the vertical sliding rod (7) is arranged in the connecting sleeve (5), a limit plate is arranged at one end of the vertical sliding rod (7), a spring (6) is arranged between the limit plate and the sliding rod (5), the universal sliding rod (12) is arranged at the other end (7) of the vertical sliding rod (7) and is close to the other end (7) of the vertical magnetic memory sensor (7) through the hollow magnetic memory sensor (13), grease is arranged in the vertical sliding rod (7),
further, the magnetic memory sensor (14) is a swiss KFG brand BGU-PVC model;
the invention relates to a using method of a curved surface detection device based on magnetic memory, which comprises the following steps:
1) The plurality of curved surface detection devices are connected through the mounting holes on the hinge lugs (4) and the fixing bolts (10), so that the plurality of curved surface detection devices are matched for use, the number of the magnetic memory detection units is expanded, and meanwhile, the curvature detection requirements of different curved surfaces can be better adapted by adjusting the mounting angles between two adjacent curved surface detection devices;
2) The curved surface detection device is moved to a curved surface to be detected, and at the moment, the vertical sliding rod (7) fixed by each magnetic memory sensor (14) is in sliding connection with the connecting sleeve (5), so that the universal castor (12) at the other end of the vertical sliding rod (7) overcomes the elastic stress of the spring (6) and supports against the curved surface;
3) Starting a driving motor (17), driving a turntable (15) to rotate by a motor shaft of the driving motor (17), driving a cylindrical pin (16) to eccentrically rotate by the turntable (15), driving a guide block (19) to transversely reciprocate by the cylindrical pin (16), driving a transverse sliding rod (11) to transversely reciprocate, expanding a detection point of a magnetic memory sensor (14), and improving the range and the precision of magnetic memory detection without limiting the detection to point detection;
4) Meanwhile, the moving frame (1) is moved, the moving frame (1) drives a plurality of curved surface detection devices to move along a curved surface to be detected, and the universal casters (12) always keep a state of being attached to the curved surface to slide, so that the detection distance between the magnetic memory sensor (14) and the surface of the curved surface is ensured until the magnetic memory detection of the curved surface is completed;
the design of the stiffening ribs is arranged between the support frame (3) and the motor frame (18), so that the base point strength of the joint of the support frame (3) and the motor frame (18) can be enhanced, and the joint fracture of the support frame (3) and the motor frame (18) caused by the involvement of a plurality of curved surface detection devices is avoided;
the cylindrical pin (16) is close to the edge of the turntable (15), can eccentrically rotate in cooperation with the turntable (15), and is guided and limited by the waist-shaped groove on the guide block (19), so that the cylindrical pin (16) drives the guide block (19) to reciprocate in the direction parallel to the transverse sliding rod (11), and the guide block (19) forms a linkage relationship with the transverse sliding rod (11) through the connecting rod, so that the transverse sliding rod (11) reciprocates in the axial direction, the detection area of magnetic memory detection is enlarged, and the magnetic memory detection range is improved;
the vertical sliding rod (7) is of a hollow structure, and lubricating grease is arranged in the vertical sliding rod (7) and lubricates the universal casters (12), so that friction between the vertical sliding rod and a curved surface is reduced, and clamping in the moving process is avoided;
the transverse sliding rod (11) is correspondingly arranged in the sliding groove and is adhered to the wall of the sliding groove, so that the transverse sliding rod (11) can be guided and limited to move only along the axial direction, the magnetic memory detection is not limited to point detection, and the range and the accuracy of the magnetic memory detection are improved;
when the magnetic memory sensor is used, the universal castor (12) at the other end of the vertical sliding rod (7) is propped against the curved surface, the spring (6) counteracts the propping force through the self elastic stress, and the universal castor (12) always keeps a state of being attached to the curved surface to slide by matching with the movement of the moving frame (1), so that the detection distance between the magnetic memory sensor (14) and the surface of the curved surface is ensured;
when the magnetic memory detection device is used, the driving motor (17), the cylindrical pins (16), the rotary table (15) and the guide blocks (19) are matched, the rotary table (15) is driven by the driving motor (17) to rotate, the cylindrical pins (16) eccentrically rotate due to the fact that the cylindrical pins (16) are close to the edges of the rotary table (15), the waist-shaped grooves guide the cylindrical pins, the cylindrical pins (16) drive the guide blocks (19) to reciprocate in the direction parallel to the transverse sliding rods (11), and therefore magnetic memory detection is not limited to point detection, and the magnetic memory detection range and accuracy are improved;
the detection device has the advantages that the curved surface is supported in an adaptive mode through the spring (6) structure on the vertical sliding rod (7), the detection distance between the magnetic memory sensor (14) and the surface of the curved surface is guaranteed, meanwhile, the vertical sliding rod (7) is driven to reciprocate through the eccentric rotation of the cylindrical pin (16) and the guide block (19), the detection point of the magnetic memory sensor (14) is expanded, and therefore the detection accuracy of the magnetic memory sensor is guaranteed.
Claims (9)
1. A curved surface detection device based on magnetic memory is characterized in that: consists of a supporting device, a driving device and a guiding device, wherein the supporting device consists of a movable frame, a fixed frame, casters and a fixed clamp, one end of the fixed frame is arranged at the top of the movable frame, the bottom of the movable frame is provided with casters, two fixing clamps are arranged at the other end of the fixed frame, and respectively near two sides of the fixing frame, the driving device consists of a supporting frame, a hinging lug, a turntable, a cylindrical pin, a driving motor and a motor frame, the motor frame is correspondingly clamped on the two fixing clamps, the driving motor is arranged on the motor frame, the turntable is arranged on a motor shaft of the driving motor, the rotary table is provided with a cylindrical pin, the cylindrical pin is close to the edge of the rotary table, two supporting frames are respectively arranged at two ends of the motor frame, one end of the supporting frame is provided with a sliding groove, the hinged earlobe is vertically arranged on the other end of the supporting frame, the hinge lug is provided with a mounting hole, the guiding device consists of a connecting sleeve, a spring, a vertical sliding rod, a transverse sliding rod, a universal castor, a connecting plate, a magnetic memory sensor and a guiding block, the two supporting frames are connected through the transverse sliding rod, the transverse sliding rod is correspondingly arranged in the sliding groove, and is attached to the wall of the sliding groove, the guide block is arranged on the turntable, the guide block is provided with a waist-shaped groove corresponding to the cylindrical pin, the waist-shaped groove extends towards the direction of the transverse slide bar, the guide block is connected with the transverse slide bar through a connecting rod, a plurality of connecting sleeves are equidistantly arranged on the transverse slide bar through connecting columns, the vertical slide bar is arranged in the connecting sleeve, the limiting plate is arranged at one end of the vertical slide bar, a spring is arranged between the limiting plate and the connecting sleeve, the universal castor is arranged at the other end of the vertical sliding rod, and the magnetic memory sensor is arranged on the vertical sliding rod through the connecting plate and is close to the other end of the vertical sliding rod.
2. The curved surface detection device based on magnetic memory according to claim 1, wherein the use method of the curved surface detection device based on magnetic memory comprises the following steps:
1) The plurality of curved surface detection devices are connected through the mounting holes on the hinge lugs and the fixing bolts, so that the plurality of curved surface detection devices are matched for use, the number of the magnetic memory detection units is expanded, and meanwhile, the curvature detection requirements of different curved surfaces can be better adapted by adjusting the mounting angles between two adjacent curved surface detection devices;
2) The curved surface detection device is moved to a curved surface to be detected, and at the moment, the vertical sliding rod fixed by each magnetic memory sensor is in sliding connection with the connecting sleeve, so that the universal castor on the other end of the vertical sliding rod overcomes the elastic stress of the spring and props against the curved surface;
3) Starting a driving motor, driving a turntable by a motor shaft of the driving motor to rotate, and driving a cylindrical pin to eccentrically rotate by the turntable, so that the cylindrical pin drives a guide block to transversely reciprocate, and driving a transverse sliding rod to transversely reciprocate, and expanding a detection point of a magnetic memory sensor, so that the detection of the magnetic memory is not limited to point detection any more;
4) Simultaneously, remove the movable frame and drive a plurality of curved surface detection device and remove along the curved surface that needs to detect, the universal caster remains the state of laminating with the curved surface all the time and slides to this guarantees the detection distance of magnetic memory sensor and curved surface, until the completion detects the magnetic memory of curved surface.
3. The curved surface detection device based on magnetic memory according to claim 1 or 2, wherein the cylindrical pin is close to the edge of the turntable, and can be eccentrically rotated in cooperation with the turntable, and is guided and limited in cooperation with the waist-shaped groove on the guide block, so that the cylindrical pin drives the guide block to reciprocate in the direction parallel to the transverse slide bar, and the guide block forms a linkage relationship with the transverse slide bar through the connecting rod, so that the transverse slide bar reciprocates in the axial direction, and the detection area of magnetic memory detection is enlarged.
4. The curved surface detection device based on magnetic memory according to claim 1 or 2, wherein the vertical sliding rod has a hollow structure.
5. The curved surface detection device based on magnetic memory according to claim 4, wherein grease is arranged inside the vertical sliding rod.
6. The curved surface detection device based on magnetic memory according to claim 4, wherein the transverse sliding rod is correspondingly arranged in the sliding groove, and the design of being attached to the wall of the sliding groove is adopted, so that the transverse sliding rod can be guided and limited to move only along the axial direction, and the magnetic memory detection is not limited to point detection.
7. The curved surface detection device based on magnetic memory according to claim 6, wherein the vertical sliding rod is designed to be matched with a spring, when the device is used, the universal castor on the other end of the vertical sliding rod is propped against the curved surface, the spring counteracts the propping force through the elastic stress of the spring, and the movement of the moving frame is matched with the movement of the moving frame to enable the universal castor to always keep a state of being attached to the curved surface to slide, so that the detection distance between the magnetic memory sensor and the curved surface is ensured.
8. The curved surface detection device based on magnetic memory according to claim 1, wherein the driving motor, the cylindrical pin, the turntable and the guide block are matched, when in use, the driving motor drives the turntable to rotate, and the cylindrical pin is close to the edge of the turntable to eccentrically rotate, so that the cylindrical pin is kept away from the circular groove to guide, and the cylindrical pin drives the guide block to reciprocate in the direction parallel to the transverse sliding rod, so that magnetic memory detection is not limited to spot detection.
9. The curved surface detection device based on magnetic memory according to claim 1, wherein a plurality of stiffening ribs are arranged between the supporting frame and the motor frame.
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| 铁磁构件疲劳损伤的磁记忆效应;陈香军;马祥华;苏兰海;屈明友;;理化检验(物理分册)(第10期);11-14 * |
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