CN112505136A - 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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- CN112505136A CN112505136A CN202011359523.7A CN202011359523A CN112505136A CN 112505136 A CN112505136 A CN 112505136A CN 202011359523 A CN202011359523 A CN 202011359523A CN 112505136 A CN112505136 A CN 112505136A
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Abstract
The invention discloses a curved surface detection device based on magnetic memory and a detection method thereof, and discloses a device which can carry out adaptive support on a curved surface through a spring structure on a vertical slide bar, ensure the detection distance between a magnetic memory sensor and the surface of the curved surface, simultaneously drive the vertical slide bar to reciprocate through the eccentric rotation of a cylindrical pin and the matching of a guide block, a curved surface detection device for expanding the detection point of the magnetic memory sensor so as to ensure the detection accuracy, it is characterized in that one end of the fixed frame is arranged at the top of the movable frame, the bottom of the movable frame is provided with a caster, the two fixed clamps are arranged at the other end of the fixed frame, and are respectively close to the two sides of the fixed frame, the motor frame is correspondingly clamped on the two fixed clamps, the driving motor is arranged on the motor frame, the rotary disc is arranged on the motor shaft of the driving motor, the turntable is provided with a cylindrical pin, the cylindrical pin is close to the edge of the turntable, and the 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 can carry out adaptive support on a curved surface through a spring structure on a vertical sliding rod, ensure the detection distance between a magnetic memory sensor and the surface of the curved surface, drive the vertical sliding rod to reciprocate through the eccentric rotation of a cylindrical pin and a guide block, expand the detection point of the magnetic memory sensor and further ensure the detection accuracy.
Background
The metal magnetic memory detection technology is a rapid nondestructive detection method for detecting stress concentration parts of components by using a metal magnetic memory effect, can diagnose stress concentration areas, namely microscopic defects, early failures, damages and the like, in ferromagnetic metal components, and prevent sudden fatigue damage, and is a new detection means in the field of nondestructive detection, while at present, when a variable-diameter curved surface is detected, the angle and the position of a magnetic memory detection probe are changed due to the change of the height of the curved surface, and the displacement data cannot be accurately recorded, so that errors occur in magnetic memory detection, while the existing magnetic memory detection device for the variable-diameter curved surface mainly detects the curved surface by a displacement structure capable of moving along with the curved surface during detection, but cannot form covering type measurement on the whole surface of the curved surface due to the fact that the detection is multi-point sampling detection, the magnetic memory detection is prone to have a missing part during detection, and accordingly deviation occurs in magnetic memory detection.
The publication number CN106996955A discloses a magnetic memory detection device for curved surfaces, which comprises an arc bottom plate, wherein the arc bottom plate is at least provided with a matching sleeve component with a slot, at least one slot is inserted with a movable detection piece, the movable detection piece comprises an expansion plate inserted into the slot, the rear end of the expansion plate is provided with an opening, the opening of the expansion plate is also provided with an elastic component, the front end of the expansion plate is provided with a small wheel and a magnetic memory sensor probe, the lowest point of the magnetic memory sensor probe is slightly higher than the lowest point of the small wheel, the middle position of the arc bottom plate is also vertically fixed with a trolley, the trolley is provided with an axial displacement sensor and a radial displacement sensor, the detection mode of the magnetic memory detection device is multipoint detection during detection, the coverage type detection of the curved surfaces cannot be formed, and the existence of unscanned areas is detected, the precision of the detected data is greatly reduced.
Disclosure of Invention
In order to improve the situation, the invention provides a curved surface detection device based on magnetic memory and a detection method thereof, and the curved surface detection device is characterized in that a spring structure on a vertical sliding rod is used for adaptively supporting a curved surface, so that the detection distance between a magnetic memory sensor and the surface of the curved surface is ensured, and meanwhile, a cylindrical pin is eccentrically and rotationally matched with a guide block to drive the vertical sliding rod to reciprocate, so that the detection point of the magnetic memory sensor is expanded, and the detection accuracy of the curved surface detection device is ensured.
The invention relates to 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 comprises a supporting device, a driving device and a guiding device, wherein the supporting device comprises a moving frame, a fixed frame, trundles and fixed clamps, one end of the fixed frame is arranged at the top of the moving frame, the bottom of the moving frame is provided with the trundles, 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 comprises a supporting frame, a hinged lug, a turntable, cylindrical pins, 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 turntable is provided with the cylindrical pins, the cylindrical pins are close to the edge of the turntable, the two supporting frames are respectively arranged on two ends of the motor frame, a plurality of stiffening ribs are arranged between the supporting frame and the, the articulated lug is perpendicularly arranged on the other end of the support frame, the articulated lug is provided with a mounting hole, a guide device connecting sleeve, a spring, a vertical sliding rod, a transverse sliding rod, a universal caster, a connecting plate, a magnetic memory sensor and a guide block, the two support frames are connected through the transverse sliding rod, the transverse sliding rod is correspondingly arranged in a sliding groove and is attached to the wall of the sliding groove, the guide block is arranged on a turntable, a waist-shaped groove corresponding to a cylindrical pin is arranged on the guide block, the waist-shaped groove extends towards the direction of the transverse sliding rod, the guide block is connected with the transverse sliding rod through the connecting rod, a plurality of connecting sleeves are arranged on the transverse sliding rod through connecting column equidistance, the vertical sliding rod is arranged inside the connecting sleeve, a limiting plate is arranged on one end of the vertical sliding rod, the spring is arranged between the limiting plate and the, 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 of a BGU-PVC model of Swiss KFG brand;
the invention relates to a use 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 increased, and meanwhile, the curvature detection requirements of different curved surfaces can be better met by adjusting the mounting angle between two adjacent curved surface detection devices;
2) moving the curved surface detection device to a curved surface to be detected, wherein at the moment, because the vertical sliding rod fixed by each magnetic memory sensor is in sliding connection with the connecting sleeve, the universal caster wheel on the other end of the vertical sliding rod overcomes the elastic stress of the spring and is supported by the curved surface;
3) starting a driving motor, wherein a motor shaft of the driving motor drives a turntable to rotate, the turntable drives a cylindrical pin to eccentrically rotate, so that the cylindrical pin drives a guide block to transversely reciprocate, a transverse sliding rod is driven to transversely reciprocate, a detection point of a magnetic memory sensor is expanded, the magnetic memory detection is not limited to point detection, and the range and the precision of the magnetic memory detection are improved;
4) simultaneously, remove and remove the frame, remove the frame and drive a plurality of curved surface detection device and remove along the curved surface that needs detected, universal castor remains throughout and slides with the state of curved surface laminating to this detection distance of guaranteeing magnetic memory sensor and curved surface, detects until the completion to the magnetism memory of curved surface.
Has the beneficial effects.
Firstly, the adaptability detection can be carried out on the variable-diameter curved surface.
And secondly, reciprocating motion can be carried out, so that the magnetic memory detection area and range are greatly expanded, and the detection precision is improved.
And thirdly, the deflection of the angle can not occur in the magnetic memory sensor miscellaneous detection, and the detection data is more accurate.
Fourthly, the structure is simple, and the device is convenient and practical.
Fifthly, the cost is low, and the popularization is convenient.
Drawings
FIG. 1 is a perspective view of a magnetic memory based curved surface inspection device according to the present invention;
FIG. 2 is a three-dimensional exploded view of a magnetic memory based curved surface sensing device of the present invention;
FIG. 3 is a three-dimensional structure diagram of a support frame of the curved surface detection device based on magnetic memory according to the present invention;
FIG. 4 is a schematic structural diagram of a curved surface detection device based on magnetic memory according to the present invention, which only shows the structure of a single set of supporting frames.
In the attached drawings
Wherein the method comprises the following steps: the device comprises a moving frame (1), a fixing frame (2), a supporting frame (3), hinge lugs (4), connecting sleeves (5), springs (6), vertical sliding rods (7), trundles (8), fixing clamps (9), fixing bolts (10), transverse sliding rods (11), universal trundles (12), connecting plates (13), magnetic memory sensors (14), a turntable (15), cylindrical pins (16), a driving motor (17), a motor frame (18) and guide blocks (19).
The specific implementation mode is as follows:
the invention relates to 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 comprises a supporting device, a driving device and a guiding device, wherein the supporting device comprises a moving frame (1), a fixed frame (2), trundles (8) and fixed clamps (9), one end of the fixed frame (2) is arranged at the top of the moving frame (1), the trundles (8) are arranged at the bottom of the moving frame (1), the two fixed clamps (9) are arranged at the other end of the fixed frame (2) and are respectively close to two sides of the fixed frame (2), the driving device comprises a supporting frame (3), hinged lugs (4), a turntable (15), cylindrical pins (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 cylindrical pins (16) are arranged on the turntable (15), the device is characterized in that the cylindrical pin (16) is close to the edge of the rotary table (15), two support frames (3) are respectively arranged at two ends of the motor frame (18), a plurality of stiffening ribs are arranged between the support frames (3) and the motor frame (18), one end of each support frame (3) is provided with a sliding groove, a hinge lug (4) is vertically arranged at the other end of each support frame (3), the hinge lug (4) is provided with a mounting hole, a guide device connecting sleeve (5), a spring (6), a vertical sliding rod (7), a transverse sliding rod (11), a universal caster (12), a connecting plate (13), a magnetic memory sensor (14) and a guide block (19) are connected, the two support frames (3) are connected through the transverse sliding rod (11), the transverse sliding rod (11) is correspondingly arranged in the sliding groove and is attached to the wall of the sliding groove, the guide block (19) is arranged on the rotary table (15), and a waist-shaped groove corresponding to the cylindrical pin (16) is arranged on the guide block (19), the waist type groove extends to the direction of horizontal slide bar (11), guide block (19) are connected through connecting rod and horizontal slide bar (11), and on horizontal slide bar (11) was arranged in through the spliced pole equidistance in a plurality of adapter sleeves (5), adapter sleeve (5) was arranged in inside vertical slide bar (7), and the limiting plate was arranged in one of vertical slide bar (7) and was served, be provided with spring (6) between limiting plate and adapter sleeve (5), universal caster (12) were arranged in on the other end of vertical slide bar (7), and vertical slide bar (7) were arranged in through connecting plate (13) in magnetic memory sensor (14), and were close to the other end of vertical slide bar (7), vertical slide bar (7) are hollow structure, vertical slide bar (7) inside is provided with lubricating grease,
further, the magnetic memory sensor (14) is of a BGU-PVC model of Swiss KFG brand;
the invention relates to a use 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 hinging 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 met by adjusting the mounting angle 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, because the vertical sliding rod (7) fixed by each magnetic memory sensor (14) is in sliding connection with the connecting sleeve (5), the universal caster (12) on the other end of the vertical sliding rod (7) overcomes the elastic stress of the spring (6) and is supported against the curved surface;
3) starting a driving motor (17), wherein a motor shaft of the driving motor (17) drives a turntable (15) to rotate, the turntable (15) drives a cylindrical pin (16) to eccentrically rotate, so that the cylindrical pin (16) drives a guide block (19) to transversely reciprocate, a transverse sliding rod (11) is driven to transversely reciprocate, a detection point of a magnetic memory sensor (14) is expanded, the magnetic memory detection is not limited to point-like detection, and the range and the precision of the magnetic memory detection are improved;
4) meanwhile, the moving frame (1) is moved, the moving frame (1) drives the plurality of curved surface detection devices to move along the curved surface to be detected, and the universal caster wheels (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 that a plurality of stiffening ribs are arranged between the support frame (3) and the motor frame (18) can enhance the strength of a base point at the joint of the support frame (3) and the motor frame (18), and avoid the fracture of the joint of the support frame (3) and the motor frame (18) caused by dragging among a plurality of curved surface detection devices;
the design that the cylindrical pin (16) is close to the edge of the rotary table (15) enables the cylindrical pin to be matched with the rotary table (15) to rotate eccentrically, and meanwhile, the cylindrical pin is matched with a waist-shaped groove in the guide block (19) to guide and limit the cylindrical pin, so that the cylindrical pin (16) drives the guide block (19) to do reciprocating motion in the direction parallel to the transverse sliding rod (11), and the guide block (19) forms a linkage relation with the transverse sliding rod (11) through a connecting rod, so that the transverse sliding rod (11) does reciprocating motion in the axial direction, the detection area of magnetic memory detection is enlarged, and the range of magnetic memory detection is enlarged;
the vertical sliding rod (7) is of a hollow structure, lubricating grease is arranged inside the vertical sliding rod (7) and is used for lubricating the universal caster (12), so that the friction force between the universal caster and a curved surface is reduced, and the universal caster is prevented from being blocked in the moving process;
the transverse sliding rod (11) is correspondingly arranged in the sliding groove and is attached to the wall of the sliding groove, so that the transverse sliding rod (11) can be guided and limited and can only move along the axial direction, the magnetic memory detection is not limited to point detection, and the range and the precision of the magnetic memory detection are improved;
the vertical sliding rod (7) and the spring (6) are matched, when the magnetic memory sensor is used, the universal caster (12) on the other end of the vertical sliding rod (7) is abutted to the curved surface, the spring (6) eliminates the abutting force through the elastic stress of the spring (6), and the universal caster (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;
the design that the driving motor (17), the cylindrical pin (16), the rotary table (15) and the guide block (19) are matched is adopted, when the magnetic memory detection device is used, the driving motor (17) drives the rotary table (15) to rotate, the cylindrical pin (16) eccentrically rotates due to the fact that the cylindrical pin (16) is close to the edge of the rotary table (15), the waist-shaped groove conducts avoidance guiding on the cylindrical pin, and the cylindrical pin (16) drives the guide block (19) to do reciprocating motion in the direction parallel to the transverse sliding rod (11), so that the magnetic memory detection is not limited to point-shaped detection, and the range and the precision of the magnetic memory detection are improved;
the detection device achieves the purpose that the detection precision of the magnetic memory sensor (14) is ensured by adaptively supporting the curved surface through a 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 ensured, and meanwhile, the cylindrical pin (16) is eccentrically and rotationally matched with the guide block (19) to drive the vertical sliding rod (7) to reciprocate.
Claims (9)
1. A curved surface detection device based on magnetic memory is characterized in that: the automatic transmission device comprises a supporting device, a driving device and a guiding device, wherein the supporting device comprises a moving frame, a fixing frame, trundles and fixing clamps, one end of the fixing frame is arranged at the top of the moving frame, the trundles are arranged at the bottom of the moving frame, the two fixing clamps are arranged at the other end of the fixing frame and are respectively close to two sides of the fixing frame, the driving device comprises a supporting frame, hinged lugs, a rotary disc, cylindrical pins, 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 rotary disc is arranged on a motor shaft of the driving motor, the cylindrical pins are arranged on the rotary disc and are close to the edge of the rotary disc, the two supporting frames are respectively arranged at two ends of the motor frame, one end of each supporting frame is provided with a sliding groove, the hinged lugs are vertically arranged at the other end of, Spring, vertical slide bar, horizontal slide bar, universal castor, connecting plate, magnetism memory sensor and guide block constitute, two the support frame is connected through horizontal slide bar, horizontal slide bar corresponds arranges in the sliding tray, and laminates mutually with the sliding tray cell wall, and the carousel is arranged in to the guide block on, it has the waist type groove corresponding with the cylindric lock to open on the guide block, waist type groove extends to horizontal slide bar's direction, the guide block is connected through connecting rod and horizontal slide bar, and a plurality of adapter sleeves are arranged in on horizontal slide bar through the spliced pole equidistance, and inside vertical slide bar was arranged in the adapter sleeve, vertical slide bar was arranged in to the limiting plate was served, be provided with the spring between limiting plate and the adapter sleeve, universal castor arranges in on the other end of vertical slide bar, magnetism memory sensor arranges in on vertical slide bar through the connecting plate, and is.
2. The apparatus for detecting curved surface based on magnetic memory as claimed in claim 1, wherein the method for using said apparatus for detecting curved surface based on magnetic memory comprises the following steps:
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 increased, and meanwhile, the curvature detection requirements of different curved surfaces can be better met by adjusting the mounting angle between two adjacent curved surface detection devices;
moving the curved surface detection device to a curved surface to be detected, wherein at the moment, because the vertical sliding rod fixed by each magnetic memory sensor is in sliding connection with the connecting sleeve, the universal caster wheel on the other end of the vertical sliding rod overcomes the elastic stress of the spring and is supported by the curved surface;
starting a driving motor, wherein a motor shaft of the driving motor drives a turntable to rotate, the turntable drives a cylindrical pin to eccentrically rotate, so that the cylindrical pin drives a guide block to transversely reciprocate, a transverse sliding rod is driven to transversely reciprocate, and a detection point of a magnetic memory sensor is expanded, so that the magnetic memory detection is not limited to point detection;
simultaneously, remove and remove the frame, remove the frame and drive a plurality of curved surface detection device and remove along the curved surface that needs detected, universal castor remains throughout and slides with the state of curved surface laminating to this detection distance of guaranteeing magnetic memory sensor and curved surface, detects until the completion to the magnetism memory of curved surface.
3. The curved surface detection device based on magnetic memory as claimed in claim 1 or 2, characterized in that the design of the cylindrical pin near the edge of the turntable enables the cylindrical pin to rotate eccentrically in cooperation with the turntable, and simultaneously guides and limits the cylindrical pin 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 rod, and the guide block and the transverse slide rod form a linkage relationship through the connecting rod, thereby enabling the transverse slide rod to reciprocate in the axial direction and further enlarging the detection area of magnetic memory detection.
4. The device for detecting curved surface based on magnetic memory as claimed in claim 1 or 2, wherein said vertical sliding rod is a hollow structure.
5. The device for detecting the curved surface based on the magnetic memory as claimed in claim 4, wherein the vertical sliding rod is internally provided with grease.
6. The device for detecting the curved surface based on the magnetic memory as claimed in claim 4, wherein the lateral sliding rod is correspondingly disposed in the sliding slot and is designed to be attached to the wall of the sliding slot, so that the lateral sliding rod can be guided and limited to move only in the axial direction, thereby being not limited to point-like detection during the magnetic memory detection.
7. The curved surface detection device based on magnetic memory according to claim 6, characterized in that the vertical slide bar and the spring are designed in a matching manner, when in use, the universal caster wheel on the other end of the vertical slide bar is supported against the curved surface, the spring eliminates the supporting force through the elastic stress of the spring, and the universal caster wheel always keeps a state of being attached to the curved surface to slide by matching with the movement of the movable frame, so that the detection distance between the magnetic memory sensor and the curved surface is ensured.
8. The device for detecting the curved surface based on the magnetic memory as claimed in claim 1, wherein the driving motor, the cylindrical pin, the rotary table and the guide block are matched, when in use, the driving motor drives the rotary table to rotate, the cylindrical pin eccentrically rotates due to the fact that the cylindrical pin is close to the edge of the rotary table, the waist-shaped groove conducts avoidance guiding on the cylindrical pin, the guide block is driven by the cylindrical pin to reciprocate in the direction parallel to the transverse sliding rod, and therefore the magnetic memory detection is not limited to point-shaped detection.
9. The device for detecting the curved surface based on the magnetic memory as claimed in claim 1, wherein a plurality of stiffening ribs are arranged between the supporting frame and the motor frame.
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