CN113552210A - Sensitivity test piece placing device for magnetic powder detection and verification and using method thereof - Google Patents
Sensitivity test piece placing device for magnetic powder detection and verification and using method thereof Download PDFInfo
- Publication number
- CN113552210A CN113552210A CN202110985802.2A CN202110985802A CN113552210A CN 113552210 A CN113552210 A CN 113552210A CN 202110985802 A CN202110985802 A CN 202110985802A CN 113552210 A CN113552210 A CN 113552210A
- Authority
- CN
- China
- Prior art keywords
- test piece
- elastic
- circular sleeve
- outer circular
- sleeve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
- G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
- G01N27/83—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws by investigating stray magnetic fields
- G01N27/84—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws by investigating stray magnetic fields by applying magnetic powder or magnetic ink
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Abstract
The invention relates to a sensitivity test piece placing device for magnetic powder detection and verification, which comprises an outer circular sleeve, an inner circular ring and an elastic fixing part, wherein the inner circular ring and the elastic fixing part are both arranged in the outer circular sleeve, and the inner circular ring is positioned above the elastic fixing part; the elastic fixing part comprises a plurality of elastic pins and a positioning piece, the elastic pins are evenly arranged at the outer edge of the positioning piece, the outer ends of the elastic pins are in contact with the inner wall of the outer circle sleeve, a round hole is formed in the middle of the positioning piece, and a viscose layer is arranged at the bottom end of the positioning piece. Methods of use are also disclosed. The invention has simple structure, is flexible and convenient, can effectively protect the test piece, and can quickly realize the test piece placement of sensitivity check and magnetization performance test under various detection workpiece positions and various magnetization modes.
Description
Technical Field
The invention relates to the technical field of nondestructive testing of materials, in particular to a sensitivity test piece placing device for magnetic powder detection and verification and a using method thereof.
Background
Magnetic particle inspection is an important means for surface quality inspection of ferromagnetic materials, and the inspection method specifically comprises the following steps: cleaning the range of the surface to be detected of the workpiece, then carrying out magnetization effect verification (including system comprehensive performance test or magnetization specification verification), and finally carrying out magnetic powder detection according to the verified magnetization specification. The magnetization effect check relates to the reliability of subsequent detection, and particularly relates to the reliability of batch detection of workpieces in automatic magnetic particle detection. The magnetization effect test comprises the steps of clinging a sensitivity test piece to the surface of a workpiece to be tested, magnetizing the workpiece, spraying magnetic powder or magnetic suspension, and setting magnetization specifications by observing the condition of magnetic marks at an artificial defect part on the test piece. The standard sensitivity test piece for magnetic powder detection is light and thin, the thickness is divided into 100 mu m and 50 mu m, and the width is generally divided into 20mm and 10 mm. During calibration, the sensitivity test piece is easily absorbed by a magnetic field, and good fixed attachment is difficult to achieve when the local edge pressure is fixed, so that the calibration effect cannot be achieved; the tweezers are used for clamping and fixing the test piece, so that the test piece cannot be well attached to the surface of the workpiece, and the test piece clamped by the tweezers is quickly bent under the action of a magnetic field and cannot meet the use requirement. The conventional general method is that a transparent adhesive tape is adopted to flatly paste the test piece on the detected surface of a workpiece, and the adhesive tape is required not to cover the manual injury on the test piece. At present, an auxiliary device for assisting in fixing the test piece is also provided, but the test piece cannot swing in the direction after being fixed, so that the magnetization effect in different directions is difficult to check
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a sensitivity test piece placing device for magnetic powder detection and verification and a using method thereof, which have the advantages of simple structure, flexibility and convenience, effective protection of a test piece, and quick realization of sensitivity verification and magnetization performance test piece placement in various detection workpiece positions and various magnetization modes.
The technical purpose of the invention is realized by the following technical scheme:
a sensitivity test piece placing device for magnetic powder detection and verification comprises an outer circular sleeve, an inner circular ring and an elastic fixing part, wherein the inner circular ring and the elastic fixing part are both arranged in the outer circular sleeve, and the inner circular ring is positioned above the elastic fixing part;
the elastic fixing part comprises a plurality of elastic pins and a positioning piece, the elastic pins are evenly arranged at the outer edge of the positioning piece, the outer ends of the elastic pins are in contact with the inner wall of the outer circle sleeve, a round hole is formed in the middle of the positioning piece, and a viscose layer is arranged at the bottom end of the positioning piece.
In one embodiment, the upper half part of the inner wall of the outer circular sleeve is provided with internal threads, the upper half part of the outer wall of the inner circular ring is provided with external threads, and the outer circular sleeve is in threaded connection with the inner circular ring.
In one embodiment, the number of the elastic pins is even, the number of the elastic pins is greater than or equal to four, and the even number of the elastic pins are uniformly arranged on the outer edge of the positioning piece.
In one embodiment, the outer end of the elastic pin is bent to form a contact end, the outer side surface of the contact end presses the inner wall of the outer circular sleeve, and the top end of the contact end is in contact with the bottom end of the inner circular ring.
In one embodiment, in a natural extension state, the distance between the contact ends of the two opposite elastic pins is 1-4mm larger than the inner diameter of the outer circular sleeve, and when the elastic pins are embedded in the outer circular sleeve, the positioning piece protrudes out of the outer circular sleeve.
In one embodiment, the bottom surface of the positioning member is circular, the diameter of the bottom surface of the positioning member is greater than or equal to the length of a diagonal line of the square test piece, the diameter of the circular hole is less than or equal to the side length of the square test piece, and the diameter of the circular hole is greater than the diameter of the circular groove in the test piece by 6-10 mm.
In one embodiment, a handle is arranged on the outer side of the outer circular sleeve, and the handle is detachably connected with the outer circular sleeve.
In one embodiment, the outer circular sleeve, the inner circular ring, the elastic pin, the positioning piece and the handle are made of non-ferromagnetic materials.
A method for using a sensitive test piece placing device for magnetic powder detection and verification comprises the following steps,
the test piece is characterized in that one end of the outer wall of the inner circular ring without threads faces downwards, the inner circular ring is arranged from the upper end of the outer circular sleeve, the outer circular sleeve is in threaded connection with the inner circular ring, then the elastic fixing part is arranged from the lower end of the outer circular sleeve, the elastic pin is in contact with the inner wall of the outer circular sleeve, the positioning part protrudes and faces towards the outer side of the outer circular sleeve, the center of the test piece is aligned with the center of the round hole, the test piece is arranged below the positioning part and is fixedly connected with the positioning part through an adhesive layer, and the round hole is completely shielded by the test piece;
the inner ring is rotated to adjust the depth position of the inner ring in the outer ring sleeve, and the position of the elastic pin is adjusted at the same time, so that the outward protruding height of the positioning piece is adjusted;
the hand-held handle aligns the test piece of setting element below the position that the work piece need magnetize the check, and to outer circle cover application pressure messenger excircle cover lower extreme and workpiece surface contact magnetize the work piece, spray magnetic powder or magnetic suspension to the test piece through the round hole of setting element simultaneously, through the magnetization effect on the round hole observation test piece.
In one embodiment, when pressure is applied to the outer circular sleeve to enable the lower end of the outer circular sleeve to be in contact with the surface of a workpiece, if the deformation degree of the elastic pin is large, the inner circular ring is rotated to move upwards, and the outward protruding height of the positioning piece is reduced; if the deformation degree of the elastic pin is small or the test piece can not be in complete contact with the surface of the workpiece, the inner circular ring rotates to move downwards, and the height of the positioning piece protruding outwards is increased.
In conclusion, the invention has the following beneficial effects:
compared with the prior art, the invention does not need to stick the test piece on the surface of the workpiece, and does not have the corresponding sticking and detaching work and the work of cleaning the edge of the test piece; an auxiliary fixing device bound with the workpiece is not needed, the influence of the shape and the size of the workpiece is avoided, and the binding, the assembly and the disassembly without the fixing device are correspondingly carried out; the joint effect of the test piece and the workpiece is adjustable, so that the joint effect of the test piece and the surface of the workpiece is ensured; the placing direction of the test piece can be adjusted at will, so that the optimal magnetization direction can be conveniently found out, and the magnetization effect in various directions can be tested;
the test piece and the positioning piece are not required to be taken down after being stuck and fixed, so that the test piece can be conveniently cleaned and used for a long time, the test piece is prevented from falling off when being taken and put due to lightness and thinness, and the test piece can be effectively protected from being bent and damaged;
the invention has wide application occasions and can be suitable for the verification of the magnetization effect of various workpiece shapes and sizes and various magnetization modes;
the invention is economic and environment-friendly, only a small amount of magnetic powder or magnetic suspension is sprayed in the range of the round hole in the spring piece when in use, thereby saving the magnetic powder or magnetic suspension and simultaneously reducing the spraying of the magnetic powder or magnetic suspension to the periphery of a detection workpiece;
the invention has simple and safe operation and easy learning and use, and when in use, an operator holds the handle by hand and places the test piece at the checking position.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic view in the direction of a-a of fig. 1.
In the figure: 1-outer circular sleeve, 2-handle, 3-inner circular ring, 4-elastic fixing part, 41-elastic pin, 42-positioning piece, 43-circular hole, 5-test piece.
Detailed Description
The invention is described in detail below with reference to the figures and examples.
It should be noted that all the directional terms such as "upper" and "lower" referred to herein are used with respect to the view of the drawings, and are only for convenience of description, and should not be construed as limiting the technical solution.
Magnetic particle inspection is an important means for surface quality inspection of ferromagnetic materials, and the inspection method specifically comprises the following steps: cleaning the range of the surface to be detected of the workpiece, then carrying out magnetization effect verification including system comprehensive performance test or magnetization specification verification, and finally carrying out magnetic powder detection according to the verified magnetization specification.
The invention provides a sensitivity test piece placing device for magnetic powder detection and verification, which comprises an outer circular sleeve 1, an inner circular ring 3 and an elastic fixing part 4, wherein the inner circular ring 3 and the elastic fixing part 4 are both arranged in the outer circular sleeve 1, and the inner circular ring 3 is positioned above the elastic fixing part 4;
The elastic pin 41 is used for making the test piece 5 below the positioning member 42 always cling to the surface of the workpiece. When the test piece testing device is used, the outer circular sleeve 1 is pressed downwards, the bottom end of the outer circular sleeve 1 is in contact with the surface of a workpiece, and the elastic pin 41 deforms in the process of pressing the outer circular sleeve 1, so that the test piece 5 is pressed against the surface of the workpiece all the time.
In order to ensure that the elastic pins 41 exert the same force on the positioning member 42, the shape and size of the plurality of elastic pins 41 are the same, and the plurality of elastic pins 41 are uniformly disposed around the positioning member 42.
In the invention, the test piece 5 and the positioning member 42 are not required to be taken down after being adhered and fixed, so that the test piece 5 can be conveniently cleaned and used for a long time, the test piece 5 is prevented from falling off when being taken and placed due to lightness and thinness, and the test piece 5 can be effectively protected from being bent and damaged.
Further, the first half of the inner wall of the outer circular sleeve 1 is provided with internal threads, the first half of the outer wall of the inner circular ring 3 is provided with external threads, and the outer circular sleeve 1 is in threaded connection with the inner circular ring 3. Interior ring 3 depth position in excircle cover 1 can be adjusted through rotatory interior ring 3, elastic pin 41's outer end both with the inner wall contact of excircle cover 1, also with the bottom contact of interior ring 3, excircle cover 1 provides the strong point for elastic pin 41, and a plurality of elastic pin 41 support the inner wall of excircle cover 1, make setting element 42 outwards protruding, interior ring 3 has injectd elastic pin 41's height, ring 3 depth position in excircle cover 1 in through the adjustment, thereby adjust setting element 42 convex height.
Further, the number of the elastic pins 41 is even, the number of the elastic pins 41 is greater than or equal to four, and the even number of the elastic pins 41 are uniformly arranged on the outer edge of the positioning member 42.
Further, the outer end of the elastic pin 41 is bent to form a contact end, the outer side surface of the contact end presses the inner wall of the outer circular sleeve 1, and the top end of the contact end is in contact with the bottom surface of the inner circular ring 3.
Further, in a natural extension state, the distance between the contact ends of the two opposite elastic pins 41 is 1-4mm larger than the inner diameter of the outer circular sleeve 1, and when the plurality of elastic pins 41 are embedded in the outer circular sleeve 1, the positioning member 42 protrudes out of the outer circular sleeve 1.
Further, the bottom surface of the positioning member 42 is circular, the diameter of the bottom surface of the positioning member 42 is greater than or equal to the length of the diagonal line of the square test piece 5, the diameter of the circular hole 43 is less than or equal to the side length of the square test piece 5, and the diameter of the circular hole 43 is greater than the diameter of the circular notch in the test piece 5 by 6-10 mm. The shape of the commonly used test piece 5 is generally square, when the test piece 5 is stuck and fixed with the positioning member 42, it is necessary to ensure that the positioning member 42 completely covers the test piece 5, so as to effectively protect the test piece 5 from being damaged by bending, and meanwhile, the test piece 5 is required to completely cover the circular hole 43, so that the magnetization effect can be conveniently observed at the circular hole 43.
Further, a handle 2 is arranged on the outer side of the outer circular sleeve 1, and the handle 2 is detachably connected with the outer circular sleeve 1. Can push down excircle cover 1 through handle 2, easy operation safety, easy learning is easy to use, during the use operating personnel handheld handle 2, place test block 5 in the check-up position can, do not influence and observe the magnetization effect.
It can be understood that the material of the outer circular sleeve 1, the inner circular ring 3, the elastic pin 41, the positioning member 42 and the handle 2 is non-ferromagnetic material, so that the magnetization effect is prevented from being influenced.
The invention also provides a use method of the sensitivity test piece placing device for magnetic powder detection and verification, which comprises the following steps,
the unthreaded end of the outer wall of the inner circular ring 3 faces downwards, the inner circular ring 3 is arranged from the upper end of the outer circular sleeve 1, the outer circular sleeve 1 is in threaded connection with the inner circular ring 3, then the elastic fixing part 4 is arranged from the lower end of the outer circular sleeve 1, the elastic pin 41 is in contact with the inner wall of the outer circular sleeve 1, the positioning part 42 protrudes and faces the outer side of the outer circular sleeve 1, the center of the test piece 5 is aligned with the center of the circular hole 43, the test piece 5 is arranged below the positioning part 42, the test piece 5 is fixedly connected with the positioning part 42 through an adhesive layer, and the circular hole 43 is completely shielded by the test piece 5;
rotating the inner ring 3 to adjust the depth position of the inner ring 3 in the outer circular sleeve 1, and adjusting the position of the elastic pin 41 to adjust the outward protruding height of the positioning piece 42;
aim at the position that the work piece need the magnetization check with the test piece 5 of setting element 42 below, to outer round sleeve 1 application pressure make outer round sleeve 1 lower extreme and workpiece surface contact, magnetize the work piece, spray magnetic powder or magnetic suspension to test piece 5 through the round hole 43 of setting element 42 simultaneously, observe magnetization effect on the test piece 5 through round hole 43.
The working principle of the invention is that the lower end of the outer circular sleeve 1 contacts with the surface of a workpiece, the elastic fixing part 4 in the outer circular sleeve 1 presses the test piece 5 on the surface of the workpiece, the elastic pins 41 of the elastic fixing part 4 are the same and are uniformly arranged at the outer edge of the positioning part 42, so the positioning part 42 uniformly applies pressure to the surface of the test piece 5, the test piece 5 is tightly jointed with the surface of the workpiece due to the fixed position of the outer circular sleeve 1 on the surface of the workpiece, the conventional pasting and dismantling and edge cleaning work of the test piece 5 are avoided, and the test piece 5 is not pressed by a magnet yoke, the complex telescopic adjustment work of a pressing device is avoided, the invention does not need to be bound with the workpiece, is not influenced by the shape and the size of the workpiece, is free from binding, assembling and disassembling work, the jointing effect of the test piece 5 and the workpiece is adjustable, the jointing effect of the test piece 5 and the surface of the test piece 5 are ensured, the placing direction of the test piece 5 can be arbitrarily adjusted, and the best magnetization direction can be conveniently found, and the magnetization effect of various directions can be tested.
When pressure is applied to the outer circular sleeve 1 to enable the lower end of the outer circular sleeve 1 to be in contact with the surface of a workpiece, if the deformation degree of the elastic pins 41 is large, the inner circular ring 3 is rotated to move upwards, and the outward protruding height of the positioning piece 42 is reduced; if the deformation degree of the elastic pin 41 is small or the test piece 5 can not contact the surface of the workpiece completely, the inner ring 3 is rotated to move downwards, and the height of the positioning member 42 protruding outwards is increased. The reason why the outward protruding height of the positioning element 42 needs to be adjusted is that if the deformation degree of the elastic pin 41 is large, the elastic pin 41 is easily deformed irreversibly to lose elasticity, but if the deformation degree of the elastic pin 41 is small or the test piece 5 cannot completely contact the surface of the workpiece, it indicates that the test piece 5 does not completely cling to the workpiece, which may affect the magnetization effect.
The present invention is illustrated by the following specific examples.
A sensitivity test piece placing device for magnetic powder detection and calibration comprises an outer circular sleeve 1, an inner circular ring 3 and an elastic fixing part 4, wherein a handle 2 is arranged on the outer side of the outer circular sleeve 1, the inner circular ring 3 and the elastic fixing part 4 are both arranged in the outer circular sleeve 1, the inner circular ring 3 is positioned above the elastic fixing part 4, the upper half part of the outer wall of the inner circular ring 3 is provided with external threads, the upper half part of the inner wall of the outer circular sleeve 1 is provided with internal threads, and the upper half part of the outer wall of the inner circular ring 3 is in threaded connection with the upper half part of the inner wall of the outer circular sleeve 1;
the elastic fixing portion 4 includes four elastic pins 41 and a circular positioning member 42, the four elastic pins 41 are uniformly disposed at the outer edge of the positioning member 42, the outer sides of the contact ends of the four elastic pins 41 are in contact with the inner wall of the outer circular sleeve 1, the top ends of the contact ends of the four elastic pins 41 are in contact with the bottom of the inner circular ring 3, a circular hole 43 is disposed in the middle of the positioning member 42, the bottom end of the positioning member 42 is provided with a double-sided adhesive layer, the square test piece 5 is fixedly connected with the positioning member 42 through the double-sided adhesive layer, wherein the positioning member 42 completely covers the test piece 5, and the test piece 5 completely covers the circular hole 43.
In the natural stretching state, the distance between the contact ends of the two opposite elastic pins 41 is greater than 1mm of the inner diameter of the outer circular sleeve 1, and when the four elastic pins 41 are embedded into the outer circular sleeve 1, the positioning member 42 protrudes out of the outer circular sleeve 1.
A use method of a sensitivity test piece placing device for magnetic powder detection and verification specifically comprises the following steps:
the unthreaded end of the outer wall of the inner circular ring 3 faces downwards, the inner circular ring 3 is arranged from the upper end of the outer circular sleeve 1, the outer circular sleeve 1 is in threaded connection with the inner circular ring 3, then the elastic fixing part 4 is arranged from the lower end of the outer circular sleeve 1, the elastic pin 41 is in contact with the inner wall of the outer circular sleeve 1, the positioning part 42 protrudes and faces towards the outer side of the outer circular sleeve 1, the center of the test piece 5 is aligned with the center of the circular hole 43, the test piece 5 is arranged below the positioning part 42, the test piece 5 is fixedly connected with the positioning part 42 through a double-sided adhesive layer, and the circular hole 43 is completely shielded by the test piece 5;
rotating the inner ring 3 to adjust the depth position of the inner ring 3 in the outer circular sleeve 1, and adjusting the position of the elastic pin 41 to adjust the outward protruding height of the positioning piece 42;
aligning the test piece 5 below the positioning member 42 to the position of the workpiece to be magnetized and checked, applying pressure to the outer circular sleeve 1 through the handle 2 to enable the lower end of the outer circular sleeve 1 to be in contact with the surface of the workpiece, if the deformation degree of the elastic pin 41 is large, rotating the inner circular ring 3 to move upwards to reduce the outward protruding distance of the positioning member 42, and if the deformation degree of the elastic pin 41 is small or the test piece 5 cannot be in complete contact with the surface of the workpiece, rotating the inner circular ring 3 to move downwards to increase the outward protruding height of the positioning member 42;
then magnetizing the workpiece, spraying magnetic powder or magnetic suspension on the test piece 5 through the round hole 43 of the positioning piece 42, and observing the magnetization effect on the test piece 5 through the round hole 43;
the position of the hand-held handle 2 is adjusted according to the magnetization direction, and the invention can be taken out when necessary, and then the position of the elastic fixing part 4 in the outer circular sleeve 1 is rotated, so that the handle 2 is in the position convenient for hand-held operation, and the manual injury direction on the test piece 5 meets the verification requirement.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (10)
1. The sensitivity test piece placing device for magnetic powder detection and verification is characterized by comprising an outer circular sleeve (1), an inner circular ring (3) and an elastic fixing part (4), wherein the inner circular ring (3) and the elastic fixing part (4) are both arranged in the outer circular sleeve (1), and the inner circular ring (3) is positioned above the elastic fixing part (4);
elastic fixation portion (4) include a plurality of elastic pins (41) and a setting element (42), and is a plurality of elastic pin (41) evenly set up the outer fringe at setting element (42), and the outer end of a plurality of elastic pins (41) and the inner wall contact of excircle cover (1), be provided with round hole (43) in the middle of setting element (42), the bottom of setting element (42) is provided with the viscose layer.
2. The device for placing the sensitive test piece for magnetic powder test and verification according to claim 1, wherein the upper half part of the inner wall of the outer circular sleeve (1) is provided with internal threads, the upper half part of the outer wall of the inner circular ring (3) is provided with external threads, and the outer circular sleeve (1) is in threaded connection with the inner circular ring (3).
3. The device for placing the sensitive test piece for magnetic powder test and verification according to claim 1, wherein the number of the elastic pins (41) is even, the number of the elastic pins (41) is greater than or equal to four, and the even number of the elastic pins (41) are uniformly arranged on the outer edge of the positioning member (42).
4. The device for placing the sensitive test piece for magnetic powder detection and verification according to claim 3, wherein the outer end of the elastic pin (41) is bent to form a contact end, the outer side surface of the contact end presses the inner wall of the outer circular sleeve (1), and the top end of the contact end is in contact with the bottom surface of the inner circular ring (3).
5. The device for placing the sensitive test piece for magnetic powder inspection and verification according to claim 4, wherein in the natural stretching state, the distance between the contact ends of the two opposite elastic pins (41) is 1-4mm larger than the inner diameter of the outer circular sleeve (1), and when the plurality of elastic pins (41) are embedded into the outer circular sleeve (1), the positioning member (42) protrudes out of the outer circular sleeve (1).
6. The device for placing the sensitivity test piece for magnetic powder inspection and verification according to claim 1, wherein the bottom surface of the positioning member (42) is circular, the diameter of the bottom surface of the positioning member (42) is greater than or equal to the diagonal length of the square test piece (5), the diameter of the circular hole (43) is less than or equal to the side length of the square test piece (5), and the diameter of the circular hole (43) is greater than the diameter of the circular groove in the test piece (5) by 6 mm to 10 mm.
7. The device for placing the sensitive test piece for magnetic powder test and verification according to claim 2, wherein a handle (2) is arranged outside the outer circular sleeve (1), and the handle (2) is detachably connected with the outer circular sleeve (1).
8. The device for placing the sensitive test piece for magnetic powder inspection and verification according to claim 7, wherein the outer circular sleeve (1), the inner circular ring (3), the elastic pin (41), the positioning member (42) and the handle (2) are made of non-ferromagnetic materials.
9. A method for using the sensitive test piece placing device for magnetic particle testing and checking is suitable for the sensitive test piece placing device for magnetic particle testing and checking according to claim 7,
the unthreaded end of the outer wall of the inner ring (3) faces downwards, the inner ring (3) is installed from the upper end of the outer circular sleeve (1), the outer circular sleeve (1) is in threaded connection with the inner ring (3), then the elastic fixing part (4) is installed from the lower end of the outer circular sleeve (1), the elastic pin (41) is in contact with the inner wall of the outer circular sleeve (1), the positioning part (42) protrudes and faces the outer side of the outer circular sleeve (1), the center of the test piece (5) is aligned with the center of the round hole (43), the test piece (5) is arranged below the positioning part (42), the test piece (5) is fixedly connected with the positioning part (42) through an adhesive layer, and the round hole (43) is completely shielded by the test piece (5);
the inner ring (3) is rotated to adjust the depth position of the inner ring (3) in the outer circular sleeve (1), and the position of the elastic pin (41) is adjusted at the same time, so that the outward protruding height of the positioning piece (42) is adjusted;
hand handle (2) aim at work piece position that the magnetization check is needed with test block (5) of setting element (42) below, to outer round sleeve (1) applied pressure messenger outer round sleeve (1) lower extreme and workpiece surface contact, magnetize the work piece, spray magnetic powder or magnetic suspension to test block (5) through round hole (43) of setting element (42) simultaneously, observe magnetization effect on test block (5) through round hole (43).
10. The use method as claimed in claim 9, characterized in that when the lower end of the outer circular sleeve (1) is contacted with the surface of the workpiece by applying pressure to the outer circular sleeve (1), if the deformation degree of the elastic pins (41) is larger, the rotating inner circular ring (3) moves upwards to reduce the height of the outward protrusion of the positioning piece (42); if the deformation degree of the elastic pin (41) is small or the test piece (5) can not completely contact the surface of the workpiece, the rotating inner ring (3) moves downwards to increase the outward protruding height of the positioning piece (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110985802.2A CN113552210B (en) | 2021-08-26 | 2021-08-26 | Sensitivity test piece placement device for magnetic powder detection and verification and application method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110985802.2A CN113552210B (en) | 2021-08-26 | 2021-08-26 | Sensitivity test piece placement device for magnetic powder detection and verification and application method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113552210A true CN113552210A (en) | 2021-10-26 |
| CN113552210B CN113552210B (en) | 2023-05-30 |
Family
ID=78106043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110985802.2A Active CN113552210B (en) | 2021-08-26 | 2021-08-26 | Sensitivity test piece placement device for magnetic powder detection and verification and application method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113552210B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB711521A (en) * | 1952-04-02 | 1954-07-07 | Vickers Electrical Co Ltd | Improvements relating to magnetic crack-detecting apparatus |
| US5749353A (en) * | 1994-06-02 | 1998-05-12 | Diamant Boart, Inc. | Cutting blade with an impact load prevention layer |
| JP2004333484A (en) * | 2003-04-18 | 2004-11-25 | Osaka Gas Co Ltd | Magnetic flaw detection method and magnetic flaw detection apparatus |
| CN103293218A (en) * | 2013-06-18 | 2013-09-11 | 南车戚墅堰机车车辆工艺研究所有限公司 | Method for calibrating sensitivity of testing system for magnetic particles on inner wall of annular member of deep hole |
| CN106018546A (en) * | 2016-07-11 | 2016-10-12 | 广东省特种设备检测研究院珠海检测院 | Test piece assisting device for checking magnetic particle testing sensitivity |
| CN207502458U (en) * | 2017-11-28 | 2018-06-15 | 厦门科维检测有限公司 | A kind of Magnetic testing Calibration Piece for Sensitivity stent |
| CN112197735A (en) * | 2020-10-27 | 2021-01-08 | 深圳市辉迪机电科技有限公司 | Production equipment with depth measurement function for machining synchronous gear ring |
-
2021
- 2021-08-26 CN CN202110985802.2A patent/CN113552210B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB711521A (en) * | 1952-04-02 | 1954-07-07 | Vickers Electrical Co Ltd | Improvements relating to magnetic crack-detecting apparatus |
| US5749353A (en) * | 1994-06-02 | 1998-05-12 | Diamant Boart, Inc. | Cutting blade with an impact load prevention layer |
| JP2004333484A (en) * | 2003-04-18 | 2004-11-25 | Osaka Gas Co Ltd | Magnetic flaw detection method and magnetic flaw detection apparatus |
| CN103293218A (en) * | 2013-06-18 | 2013-09-11 | 南车戚墅堰机车车辆工艺研究所有限公司 | Method for calibrating sensitivity of testing system for magnetic particles on inner wall of annular member of deep hole |
| CN106018546A (en) * | 2016-07-11 | 2016-10-12 | 广东省特种设备检测研究院珠海检测院 | Test piece assisting device for checking magnetic particle testing sensitivity |
| CN207502458U (en) * | 2017-11-28 | 2018-06-15 | 厦门科维检测有限公司 | A kind of Magnetic testing Calibration Piece for Sensitivity stent |
| CN112197735A (en) * | 2020-10-27 | 2021-01-08 | 深圳市辉迪机电科技有限公司 | Production equipment with depth measurement function for machining synchronous gear ring |
Non-Patent Citations (1)
| Title |
|---|
| 刘仕远 等: "一种深孔环形件内壁磁粉检测系统灵敏度校验方法", 《轨道交通装备与技术》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113552210B (en) | 2023-05-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1637292B1 (en) | Apparatus for inspection of a structure | |
| US10088378B2 (en) | System for applying an ultrasonic transducer to a fastener | |
| CN113552210A (en) | Sensitivity test piece placing device for magnetic powder detection and verification and using method thereof | |
| US10845718B2 (en) | Holder for holding and for protecting a side of a photomask or a photomask or a photomask having pellicle from a cleaning medium, method for cleaning a photomask or a photomask with pellicle and device for opening and closing a holder | |
| CN211661823U (en) | Metallographic specimen polishing and grinding machine specimen clamp | |
| CN208520808U (en) | A kind of magnetic powder inspection Special test fixed frame | |
| CN211231180U (en) | Strain gauge pasting tool | |
| CN112129973A (en) | Auxiliary fixing device | |
| CN214894956U (en) | Scanning electron microscope sample stage for analyzing cross section of corrosion product on surface of sample | |
| CN207816748U (en) | A kind of T impact peel experimental rigs of sqtructural adhesive | |
| JP5245945B2 (en) | Masking jig | |
| CN219065111U (en) | Unsaturated solidified soil direct stretching fatigue cracking test device | |
| CN220063924U (en) | Magnetism check out test set | |
| CN212806809U (en) | Quick detection device of combined material cover body step | |
| CN218380713U (en) | Detection tool for testing outside avoidance angle and offset distance of steering knuckle | |
| CN114112130B (en) | Device and method capable of repeatedly measuring stress intensity factor of crack tip | |
| CN109373965A (en) | A kind of three axis, 60 ° of strain gauge transducer stickers and adhering method suitable for strain measurement | |
| CN212006993U (en) | Scribing tool for eye hole of inspection tool | |
| CN211086202U (en) | Probe clamping mechanism of ultrasonic flaw detector | |
| KR20150076695A (en) | Holder apparatus for specimen in polishing machine | |
| CN214121809U (en) | Sucking disc formula frock | |
| CN216484285U (en) | Device for assisting in detecting apparent hardness of O-shaped ring | |
| CN216434021U (en) | Sample fixing mechanism for nondestructive testing of metal materials | |
| CN208528931U (en) | A kind of hair dryer clamp positioning device | |
| CN211205106U (en) | Crankshaft conical surface position measuring device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |