CN213364652U - Small-size loop forming element magnetic particle testing device - Google Patents
Small-size loop forming element magnetic particle testing device Download PDFInfo
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- CN213364652U CN213364652U CN202022052551.6U CN202022052551U CN213364652U CN 213364652 U CN213364652 U CN 213364652U CN 202022052551 U CN202022052551 U CN 202022052551U CN 213364652 U CN213364652 U CN 213364652U
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- fixing sleeve
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- axial
- electrode chuck
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- 239000006249 magnetic particle Substances 0.000 title claims description 15
- 238000012360 testing method Methods 0.000 title claims description 14
- 239000004020 conductor Substances 0.000 claims abstract description 79
- 238000009434 installation Methods 0.000 claims description 12
- 230000005291 magnetic effect Effects 0.000 claims description 11
- 229920001342 Bakelite® Polymers 0.000 claims description 3
- 239000004637 bakelite Substances 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 22
- 239000006247 magnetic powder Substances 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 3
- 230000035945 sensitivity Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 17
- 230000007547 defect Effects 0.000 description 5
- 238000011437 continuous method Methods 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 238000010891 electric arc Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 206010014357 Electric shock Diseases 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003302 ferromagnetic material Substances 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
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- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Abstract
A small-sized ring magnetic powder detection device comprises a left fixing sleeve, a right fixing sleeve, a conductor, a left electrode chuck and a right electrode chuck; the left fixing sleeve and the right fixing sleeve are both of stepped cylindrical structures with the same shape, one side of the stepped cylindrical structure is in a large disc shape, and the other side of the stepped cylindrical structure is in a small circular sleeve shape; the inner diameter of the left fixing sleeve is provided with 3 axial key teeth along the circumference in the horizontal direction and the bottom vertical direction, and the large circular disks of the left and right fixing sleeves are attached to the end surfaces of the left and right electrode chucks and fixed together through bolts; the left end of the conductor is provided with 3 axial key grooves in the horizontal and bottom vertical directions along the axial direction, and the axial key grooves are connected with the axial key teeth of the left fixing sleeve in a sliding fit manner. The device has a simple structure, adopts the form that the left and right fixing sleeves are in sliding fit with the conductor, increases the rigidity of the conductor, can easily complete detection operation by one person, and effectively reduces the labor intensity; the material hardness of the fixing sleeve is low, so that the conductor is not easy to wear, the cost is reduced, the detection sensitivity is ensured, and the detection efficiency is improved.
Description
Technical Field
The utility model belongs to the technical field of nondestructive test's magnetic particle testing, concretely relates to small-size loop forming element magnetic particle testing device.
Background
Magnetic particle inspection is a method of inspecting ring defects using magnetic phenomena. After the ferromagnetic material is properly magnetized, magnetic lines of force are locally distorted at the surface or near-surface defect, and then the magnetic lines of force escape from the surface of the ring-shaped piece to form a magnetic pole, so that a leakage magnetic field is generated, magnetic powder applied to the surface of the ring-shaped piece is adsorbed, and visible defect magnetic trace display is formed under proper observation conditions.
For magnetic particle detection of annular parts, a central conductor method is generally adopted. The central conductor method, also called rod-through method (as shown in fig. 1), is a common method for detecting ring-shaped parts, i.e. a conductor core rod is inserted into a hole of a ring-shaped part, current flows through the conductor to form a circumferential magnetic field, and the ring-shaped part is induced and magnetized in the magnetic field formed by the conductor to find the defects of the inner and outer surfaces of the ring-shaped part parallel to the current direction and the end surface radial defects.
For the detection of the small ring-shaped parts, in order to improve the detection efficiency, a plurality of ring-shaped parts are usually threaded on the same conductor to complete the electrification and magnetization at one time. During detection, one hand supports the conductor, the other hand sleeves the annular part, and the whole annular part is placed between the left electrode chuck and the right electrode chuck of the flaw detector. Generally, the left electrode chuck is fixed, the right electrode chuck is movable, an electrode chuck button is started, the right electrode chuck is driven by a motor to move towards the middle to clamp a conductor, a closed loop is formed by the two electrode chucks, the conductor and a power supply, a charging button is started, the ring piece can be magnetized, and continuous method or remanence method detection is carried out according to process requirements. The method is simple, convenient and rapid, and the annular member itself has no current passing through, and will not generate electric arc ignition and burn. However, in the operation process of the method, because the conductor is generally a conductive and non-magnetic copper bar, when the conductor is sleeved into the annular part and placed on a flaw detector for clamping, the annular part needs to be horizontally lifted stably, and once the conductor is inclined, the annular part is easy to slide off the conductor; meanwhile, when the button of the electrode chuck is operated, only one hand is used for lifting, the end face of the conductor is ensured to be in good contact with the electrode chuck while the ring-shaped piece is ensured not to slide, and when the detection is finished, the ring-shaped piece is still required to be lifted by one hand when being taken down, so that the operation process is complicated; when the conductor is lifted by hands, if the operation is wrong, the risk of electric shock exists; the ring-shaped piece slides down, which can cause collision damage or loss; if the conductor places the slope between two electrodes, conductor both ends face and electrode chuck plane contact are improper, can produce the electric arc when circular telegram and strike sparks, release harmful gas, harm the healthy of inspector, and moreover, conductor and annular member overall quality are not light, long-time operation, and intensity of labour is very big, for overcoming above difficulty, the inspection scene need arrange two people cooperation operations at least, and work efficiency is low, has the potential safety hazard.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a small-size loop forming element magnetic particle testing device, the device adopt set up fixed cover between two electrode chucks on a left side, the right side, set up axial key tooth on the fixed cover hole in a left side, the axial keyway that the conductor left side set up is connected with the axial key tooth sliding fit of the fixed cover in a left side, need not the manpower during operation and lift the conductor, and safe swift, alone can easily accomplish, has both guaranteed detectivity, has improved detection efficiency again.
The purpose of the utility model can be realized by adopting the following technical scheme: a small-sized ring magnetic powder detection device comprises a left fixing sleeve, a right fixing sleeve, a conductor, a left electrode chuck, a right electrode chuck, a bolt and an elastic washer; the left fixing sleeve and the right fixing sleeve are of stepped cylindrical structures with the same shape, one side of each stepped cylindrical structure is in a large disc shape, the other side of each stepped cylindrical structure is in a small circular sleeve shape, and four axial through holes are uniformly distributed in the large discs of the left fixing sleeve and the right fixing sleeve respectively; the inner diameter of the left fixing sleeve is provided with 3 axial key teeth along the circumference in the horizontal direction and the bottom vertical direction, the large circular disc surface of the left fixing sleeve is attached to the end surface of the left electrode chuck and is fixed with the left electrode chuck through a bolt and an elastic washer; the large circular disc surface of the right fixing sleeve is attached to the end surface of the right electrode chuck and is fixed with the right electrode chuck through a bolt and an elastic washer; the conductor be the major axis shape, the left end of conductor sets up 3 axial keyways at level and the vertical direction in bottom along the axial, the conductor is connected with the hole sliding fit of the fixed cover in a left side and the right side, 3 axial keyways of conductor and the fixed cover hole in a left side on 3 axial key tooth sliding fit be connected.
The end face of the large disc on the left side of the left fixing sleeve is provided with a counter bore I with the diameter larger than the diameter of the inner hole of the left fixing sleeve, and the middle position of the upper part of the end face of the small circular sleeve on the right side of the left fixing sleeve is provided with a mounting mark a.
The big disc terminal surface in fixed cover right side on the right side on be provided with the counter bore II that the diameter is greater than fixed cover hole diameter in the right side, the left little circle cover cylinder terminal surface port department of fixed cover in the right side sets up the chamfer guide mouth.
The outer diameter size of the conductor is matched with the diameters of inner holes of a left fixing sleeve and a right fixing sleeve, the size of 3 axial key grooves in the conductor is matched with the size of 3 axial key teeth in the inner hole of the left fixing sleeve, the length of the axial key grooves is greater than the length of the 3 axial key teeth in the inner hole of the left fixing sleeve, an installation mark b is arranged at the end face opposite to the bottom axial key teeth in the middle of the top of the left end of the conductor, and a large chamfer is arranged at the right end of the conductor.
And the end surfaces of the left electrode chuck and the right electrode chuck connected with the left fixing sleeve and the right fixing sleeve are provided with threaded holes corresponding to the axial through holes in the left fixing sleeve and the right fixing sleeve, and the threaded holes are matched with bolts.
The left fixing sleeve and the right fixing sleeve are both made of bakelite which is non-conductive, non-magnetic and lower in hardness than the conductor.
When the utility model is used, the large circular disc surfaces of the left and right fixed sleeves are respectively pasted on the end surfaces of the left and right electrode chucks, the installation mark a of the left fixed sleeve is arranged at the center of the top, and the left fixed sleeve and the left electrode chuck, and the right fixed sleeve and the right electrode chuck are respectively fixed together by the elastic washer and the bolt; horizontally supporting the conductor, aligning a mounting mark b at the left end of the conductor with a mounting mark a on the end face of the left fixing sleeve, matching an axial key groove at the left end of the conductor with an axial key tooth on an inner hole of the left fixing sleeve, slidably inserting the conductor into the inner hole of the left fixing sleeve and directly abutting against the end face of the left electrode chuck, then sleeving the ring-shaped elements one by one, hanging the ring-shaped elements on the conductor to leave a certain interval between the ring-shaped elements, starting an electrode chuck button after placement is completed, driving the right electrode chuck to move towards the middle by a motor, guiding the right end of the conductor to accurately slidably insert the right fixing sleeve; and finally, starting a charging button, namely magnetizing the ring parts, carrying out continuous method or remanence method detection according to process requirements, starting an electrode chuck button after the detection is finished, loosening the conductors by a right electrode chuck, taking down the ring parts one by one, and then carrying out detection on the next batch of ring parts.
The utility model has the advantages that: the device is simple in structure and convenient to operate, the left fixing sleeve and the right fixing sleeve are in sliding fit with the conductor, the rigidity of the conductor is increased, and the deformation after multiple clamping is slowed down, so that the whole detection operation is safe and convenient, can be easily finished by one person, and effectively reduces the labor intensity; the material hardness of the fixing sleeve is low, so that the conductor is not easy to wear, the cost is reduced, the detection sensitivity is ensured, and the detection efficiency is obviously improved.
Drawings
FIG. 1 is a schematic diagram of magnetic particle testing of a ring-shaped member by a conventional rod-through method;
FIG. 2 is a schematic view of the magnetic particle testing apparatus of the present invention;
fig. 3 is a front view of the left fixing sleeve of the present invention;
FIG. 4 is a left side cross-sectional view of FIG. 3;
fig. 5 is a front view of the right fixing sleeve of the present invention;
FIG. 6 is a right side cross-sectional view of FIG. 5;
fig. 7 is a front view of the conductor of the present invention;
FIG. 8 is a left side view of FIG. 7;
the labels in the figure are: 1. the electrode clamp comprises a left fixing sleeve, a right fixing sleeve, a conductor, a left electrode clamp, a right electrode clamp, a bolt, a spring washer, an axial key groove, a bolt, an axial key groove, a bolt, an axial key tooth, a bolt, an axial through hole, 11, installation marks a, 12, counter bores I and 13, counter bores II and 14, chamfer guiding openings, 15, installation marks b and 16 and annular.
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.
As shown in fig. 2, 3, 4, 5, 6, 7, and 8: a small-sized ring magnetic powder detection device comprises a left fixing sleeve 1, a right fixing sleeve 2, a conductor 3, a left electrode chuck 4, a right electrode chuck 5, a bolt 6 and an elastic washer 7; the left fixing sleeve 1 and the right fixing sleeve 2 are both of stepped cylindrical structures with the same shape, and are both made of materials such as non-conducting materials, bakelite with the hardness lower than that of the conductor 3 and the like, one side of the stepped cylindrical structure is in a large disc shape, the other side of the stepped cylindrical structure is in a small circular sleeve shape, and four axial through holes 10 are uniformly distributed on the large discs of the left fixing sleeve 1 and the right fixing sleeve 2 respectively; the end surfaces of the left electrode chuck 4 and the right electrode chuck 5, which are respectively connected with the left fixing sleeve 1 and the right fixing sleeve 2, are provided with threaded holes corresponding to the axial through holes 10, and the threaded holes are matched with the bolts 6; the inner diameter of the left fixing sleeve 1 is provided with 3 axial key teeth 9 along the circumference in the horizontal direction and the bottom vertical direction, the left side end face of a large disc of the left fixing sleeve 1 is provided with a counter bore I12 with the diameter larger than that of an inner hole of the left fixing sleeve 1, the middle position of the upper part of the end face of a small circular sleeve on the right side of the left fixing sleeve 1 is provided with an installation mark a11, the large disc is attached to the end face of the left electrode chuck 4 and is fixed with the left electrode chuck 4 through a bolt 6 and an elastic washer 7; a counter bore II 13 with the diameter larger than that of the inner hole of the right fixing sleeve 2 is arranged on the end face of the right side of the large disc of the right fixing sleeve 2, a chamfer leading port 14 is arranged at the port of the end face of the small circular sleeve on the left side of the right fixing sleeve 2, the large disc of the right fixing sleeve 2 is attached to the end face of the right electrode chuck 5 and is fixed with the right electrode chuck 5 through a bolt 6 and an elastic washer 7; the conductor 3 is in a long shaft shape, the outer diameter of the long shaft is matched with the diameters of inner holes of the left fixing sleeve 1 and the right fixing sleeve 2, 3 axial key grooves 8 are axially arranged at the left end of the conductor 3 in the horizontal and bottom vertical directions, the size of each axial key groove 8 is matched with the size of 3 axial key teeth 9 on the inner hole of the left fixing sleeve 1, and the length of each axial key groove 8 is larger than that of the 3 axial key teeth 9 of the left fixing sleeve 1, so that the adjustment allowance is provided when the conductor is clamped; the conductor 3 is connected with the inner holes of the left fixing sleeve 1 and the right fixing sleeve 2 in a sliding fit manner, 3 axial key slots 8 of the conductor 3 are connected with 3 axial key teeth 9 on the inner hole of the left fixing sleeve 1 in a sliding fit manner, so that the conductor 3 cannot rotate and move up and down, an installation mark b15 is arranged at the end face, opposite to the bottom key tooth 9, in the middle of the top of the left end of the conductor 3, the installation mark b15 needs to be aligned with an installation mark a11 on the end face of the left fixing sleeve 1, and the axial key slots 8 of the conductor 3 can be conveniently and quickly aligned with the axial key teeth 9 of; the right-hand member of conductor 3 sets up big chamfer, can guide the right-hand member of conductor 3 to accurately insert the chamfer guide mouth 14 that the left end orifice department of the fixed cover 2 in the right side set up, slide in the hole of the fixed cover 2 in the right side.
The utility model discloses a concrete operation process does: firstly, respectively attaching the large circular disc surfaces of a left fixing sleeve 1 and a right fixing sleeve 2 to the end surfaces of a left electrode chuck 4 and a right electrode chuck 5, respectively, enabling the axes of the left fixing sleeve 1 and the right fixing sleeve 2 to be respectively superposed with the axes of the left electrode chuck 4 and the right electrode chuck 5, placing an installation mark a11 on the left fixing sleeve 1 in the center of the top, and respectively fixing the left fixing sleeve 1 and the left electrode chuck 4, and the right fixing sleeve 2 and the right electrode chuck 5 together by using a bolt 6 and an elastic washer 7; then horizontally supporting the conductor 3, aligning the installation mark b15 at the left end part of the conductor 3 with the installation mark a11 at the right end surface of the left fixing sleeve 1, enabling the axial key groove 8 at the left end of the conductor 3 to be matched with the axial key tooth 9 on the inner hole of the left fixing sleeve 1, slidably inserting the axial key groove 8 into the left fixing sleeve 1 and directly abutting against the end surface of the left electrode chuck 4, and enabling the conductor 3 not to rotate and move up and down due to the matching of the axial key groove 8 and the axial key tooth 9; then, the annular members 16 are sleeved one by one and hung on the conductor 3, and a certain interval is left between the annular members 16; after the placement is finished, an electrode chuck button is started, the right electrode chuck 5 is driven by a motor to move towards the middle, the right end of the conductor 3 is a large chamfer, the left end orifice of the right fixing sleeve 2 is a chamfer guide orifice 14, the right end of the conductor 3 can be guided to be accurately inserted into the right fixing sleeve 2 in a sliding manner, and then the conductor 3 is clamped; and finally, starting a charging button, namely magnetizing the ring parts 16, carrying out continuous method or remanence method detection according to process requirements, starting the electrode chuck button again after the detection is finished, loosening the conductors 3 by the right electrode chuck 5, taking down the ring parts 16 one by one, and carrying out detection on the next batch of ring parts 16.
The utility model discloses not state in detail part is prior art, and the device has used in this enterprise, and is respond well, proposes to promote.
Claims (6)
1. The utility model provides a small-size loop forming element magnetic particle testing device, includes fixed cover (1) in a left side, the fixed cover (2) in the right side, conductor (3), left electrode chuck (4), right electrode chuck (5), bolt (6) and elastic washer (7), characterized by: the left fixing sleeve (1) and the right fixing sleeve (2) are both of stepped cylindrical structures with the same shape, one side of each stepped cylindrical structure is in the shape of a large disc, the other side of each stepped cylindrical structure is in the shape of a small circular sleeve, and four axial through holes (10) are uniformly distributed on the large discs of the left fixing sleeve (1) and the right fixing sleeve (2) respectively; the inner diameter of the left fixing sleeve (1) is provided with 3 axial key teeth (9) along the circumference in the horizontal direction and the bottom vertical direction, the large circular disc surface of the left fixing sleeve (1) is attached to the end surface of the left electrode chuck (4) and is fixed with the left electrode chuck (4) through a bolt (6) and an elastic washer (7); the large circular disc surface of the right fixing sleeve (2) is attached to the end surface of the right electrode chuck (5) and is fixed with the right electrode chuck (5) through a bolt (6) and an elastic washer (7); conductor (3) be the major axis shape, the left end of conductor (3) is provided with 3 axial keyway (8) along the axial at level and the vertical direction in bottom, conductor (3) are connected with the hole sliding fit of the fixed cover in a left side (1) and the fixed cover in the right side (2), 3 axial keyway (8) of conductor (3) are connected with 3 axial key tooth (9) sliding fit on the fixed cover in a left side (1) hole.
2. The magnetic particle testing device for the small ring parts as claimed in claim 1, wherein: the end face of a large disc on the left side of the left fixing sleeve (1) is provided with a counter bore I (12) with the diameter larger than the diameter of an inner hole of the left fixing sleeve (1), and the middle position of the upper part of the end face of a small circular sleeve on the right side of the left fixing sleeve (1) is provided with a mounting mark a (11).
3. The magnetic particle testing device for the small ring parts as claimed in claim 1, wherein: the big disc terminal surface in fixed cover (2) right side of right side on be provided with the diameter and be greater than fixed cover (2) hole diameter's in the right counter bore II (13), fixed cover (2) left little circle cover barrel head face aperture department in the right side sets up chamfer guide mouth (14).
4. The magnetic particle testing device for the small ring parts as claimed in claim 1, wherein: conductor (3) external diameter size and the hole diameter phase-match of the fixed cover in a left side (1) and the fixed cover in the right side (2), the size of 3 axial keyway (8) on conductor (3) and the size phase-match of 3 axial key tooth (9) on the fixed cover in a left side (1) hole, the length of 3 axial key tooth (9) on its length is greater than the fixed cover in a left side (1) hole, the terminal surface department relative with bottom axial key tooth (9) sets up installation mark b (15) in the middle of conductor (3) left end top, conductor (3) right-hand member sets up big chamfer.
5. The magnetic particle testing device for the small ring parts as claimed in claim 1, wherein: the end faces of the left electrode chuck (4) and the right electrode chuck (5) connected with the left fixing sleeve (1) and the right fixing sleeve (2) are provided with threaded holes corresponding to the through holes (10) in the left fixing sleeve (1) and the right fixing sleeve (2), and the threaded holes are matched with the bolts (6).
6. The magnetic particle testing device for the small ring parts as claimed in claim 1, wherein: the left fixing sleeve (1) and the right fixing sleeve (2) are both made of bakelite which is non-conductive, non-magnetic and lower in hardness than the conductor (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022052551.6U CN213364652U (en) | 2020-09-18 | 2020-09-18 | Small-size loop forming element magnetic particle testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022052551.6U CN213364652U (en) | 2020-09-18 | 2020-09-18 | Small-size loop forming element magnetic particle testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213364652U true CN213364652U (en) | 2021-06-04 |
Family
ID=76154003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022052551.6U Active CN213364652U (en) | 2020-09-18 | 2020-09-18 | Small-size loop forming element magnetic particle testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213364652U (en) |
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2020
- 2020-09-18 CN CN202022052551.6U patent/CN213364652U/en active Active
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| GR01 | Patent grant | ||
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Address after: 471039 No. 96, Jianxi, Luoyang District, Henan, Jianshe Road Patentee after: Luoyang Bearing Group Co.,Ltd. Country or region after: China Address before: 471039 No. 96, Jianxi, Luoyang District, Henan, Jianshe Road Patentee before: LUOYANG LYC BEARING Co.,Ltd. Country or region before: China |
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