CN111190129A - Online detection device and method for magnetic performance of iron core - Google Patents
Online detection device and method for magnetic performance of iron core Download PDFInfo
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- CN111190129A CN111190129A CN201811362000.0A CN201811362000A CN111190129A CN 111190129 A CN111190129 A CN 111190129A CN 201811362000 A CN201811362000 A CN 201811362000A CN 111190129 A CN111190129 A CN 111190129A
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- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/12—Measuring magnetic properties of articles or specimens of solids or fluids
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Abstract
The invention discloses an on-line detection device and method for magnetic performance of an iron core, and relates to the technical field of motors. The device includes: the device comprises a device control system, an iron loss tester, a clamp, a mandrel and a horizontal workbench; the dabber that vertical direction set up is fixed on the horizontal table, anchor clamps set up the upper end of dabber is used for will overlapping the upper end of dabber the iron core presss from both sides tight fixedly, the iron loss tester is used for detecting the magnetic property of iron core, device control system is used for controlling the device. The iron core is conveyed to the upper end of the core shaft and is clamped and fixed by the clamp, the iron loss tester detects the magnetic property of the iron core, and the device control system transfers the iron core according to a detection result. The device and the method for detecting the magnetic property of the iron core on line detect the magnetic property of the iron core of the motor in an assembly line, avoid the unqualified iron core from being transferred to a winding process, and improve the quality and the performance of the motor.
Description
Technical Field
The invention relates to the technical field of motors, in particular to an on-line detection device and method for magnetic performance of an iron core.
Background
The stator is an important component of the motor, and the iron core is used as a core element in the stator, and whether the magnetic performance of the iron core has an important influence on the normal operation of the motor. Therefore, in the manufacturing process of the motor, the magnetic performance of the motor iron core should be tested before a coil is not wound on the motor stator, and unqualified iron cores are picked out, so that labor and cost can be greatly saved, and economic benefit is improved. The iron loss is an important index for evaluating the performance of the motor iron core, and if the iron loss is too large, after exciting current is added into a stator winding, adverse phenomena such as heating, vibration, efficiency reduction and the like can be generated, and the adverse effects can be generated on the operation of the motor. Therefore, in the production process of the motor, the magnetic performance of the stator core should be detected in time, and the quality of the motor is prevented from being influenced by unqualified cores.
In practical production in recent years, due to the increase of the capacity demand, the frame assembling standard and the process flow of the iron core heat treatment are changed for increasing the beat, the magnetic property fluctuation of the iron cores of batches is large, and the magnetic properties of the iron cores at different positions of the same frame can also have difference. At present, the magnetic performance detection of the iron cores is performed by sampling, the magnetic performance of each iron core cannot meet the standard, and the magnetic performance of the iron cores is an important factor influencing the performance of a motor and a compressor, so that the magnetic performance detection of the iron cores is necessary.
Disclosure of Invention
The invention aims to provide an on-line detection device and method for magnetic performance of an iron core, which are used for detecting the magnetic performance of the iron core of a motor in an assembly line, avoiding unqualified iron core from being transferred to a winding process and improving the quality and performance of the motor.
In order to achieve the above object, the present invention provides an on-line detection device for magnetic properties of an iron core, which is used for performing total detection on the magnetic properties of the iron core on an assembly line, and comprises: the device comprises a device control system, an iron loss tester, a clamp, a mandrel and a horizontal workbench;
the dabber sets up of vertical direction is fixed on the horizontal table, anchor clamps set up the upper end of dabber is used for will overlapping the upper end of dabber the iron core presss from both sides tightly fixedly, the iron loss tester includes first test terminal and second test terminal, the second test terminal walks the line and passes the dabber is fixed the top of dabber, first test terminal be used for with second test terminal butt joint forms closed loop in order to detect the magnetic property of iron core, device control system connects the iron loss tester.
Optionally, the device for detecting the magnetic property of the iron core on line further comprises a supporting plate, wherein the supporting plate is arranged in the horizontal direction and sleeved on the mandrel, and can move up and down between the horizontal workbench and the clamp.
Optionally, the device for detecting the magnetic property of the iron core on line further comprises a first manipulator, the first manipulator is arranged between the core shaft and the upper process channel, and the first manipulator is used for conveying the iron core to be wound, which flows in through the upper process channel, to the upper end of the core shaft to be detected.
Optionally, the device for detecting the magnetic property of the iron core on line further comprises a second manipulator, wherein the second manipulator is arranged between the mandrel and a circulation channel of a next process, and is used for conveying the detected iron core to the circulation channel.
The invention also provides an on-line detection method for the magnetic performance of the iron core, which is characterized in that the on-line detection device for the magnetic performance of the iron core is applied, the iron core flows in through the upper process channel, the first manipulator conveys the iron core to the upper end of the mandrel and is clamped and fixed by the clamp, the first test terminal and the second test terminal of the iron loss tester are in butt joint to detect the magnetic performance of the iron core and transmit a detection result back to the device control system through a signal wire, and the device control system conveys the iron core to the circulation channel through the second manipulator according to the detection result.
Optionally, the magnetic properties of the iron core include iron loss and strength of induction.
Optionally, the circulation channel includes a qualified product channel and an unqualified product channel, the magnetic property of the iron core is detected to be qualified, the iron core flows into the qualified product channel, and the magnetic property of the iron core is detected to be unqualified, the iron core flows into the unqualified product channel.
Optionally, the iron core whose magnetic performance is detected to be unqualified flows into the unqualified product channel, the supporting plate descends to the horizontal workbench, the fixture releases the iron core, the iron core automatically falls to the supporting plate along the core shaft to be corrected, then the supporting plate jacks the iron core back to the clamping position and detects the magnetic performance of the iron core again, the magnetic performance of the iron core detects the iron core to flow into the qualified product channel again, and the magnetic performance of the iron core detects the iron core to flow into the unqualified product channel again.
Optionally, the correction is to correct abnormal magnetic performance of the iron core caused by self-clinching riveting point stress or welding deformation stress.
Optionally, the iron core flowing into the qualified product channel enters a winding process, and the iron core flowing into the unqualified product channel is recycled and repaired.
In the device and the method for detecting the magnetic property of the iron core on line provided by the invention, the mandrel arranged in the vertical direction is fixed on the horizontal workbench, the clamp is arranged at the upper end of the mandrel and is used for clamping and fixing the iron core sleeved at the upper end of the mandrel, the iron loss tester comprises a first test terminal and a second test terminal, the second test terminal is wired to penetrate through the mandrel and is fixed at the top end of the mandrel, the first test terminal is used for being in butt joint with the second test terminal to form a closed loop so as to detect the magnetic property of the iron core, and the device control system is connected with the iron loss tester. The iron core flows in through the upper process channel, the first manipulator conveys the iron core to the upper end of the mandrel and is clamped and fixed by the clamp, the first testing terminal and the second testing terminal of the iron loss tester are in butt joint detection on the magnetic performance of the iron core, a detection result is transmitted back to the device control system through a signal line, and the device control system conveys the iron core to the circulation channel through the second manipulator according to the detection result. The device and the method for detecting the magnetic property of the iron core on line provided by the invention realize the on-line detection of the total number of the iron cores, avoid the unqualified iron cores from being transferred to the winding process, and improve the quality and the performance of the motor.
Drawings
Fig. 1 is a schematic diagram of an apparatus for online detection of magnetic properties of an iron core according to an embodiment of the present invention;
wherein: 10-device control system, 20-iron loss tester, 21-first test terminal, 22-second test terminal, 30-clamp, 40-mandrel, 50-horizontal workbench, 60-supporting plate, 70-first manipulator, 80-second manipulator, 90-iron core, 101-qualified product channel, 102-unqualified product channel and 103-last process channel.
Detailed Description
The following describes in more detail embodiments of the present invention with reference to the schematic drawings. Advantages and features of the present invention will become apparent from the following description and claims. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention.
As mentioned in the background art, since the demand for productivity is increased, the standard of iron core heat treatment framing and the process flow are changed to increase the tact time, the fluctuation of the magnetic properties of the iron cores of the batch is large, and the magnetic properties of the iron cores at different positions of the same frame may be different. At present, the magnetic performance detection of the iron cores is performed by sampling, the magnetic performance of each iron core cannot meet the standard, and the magnetic performance of the iron cores is an important factor influencing the performance of a motor and a compressor. Therefore, the inventor designs an on-line detection device and method for the magnetic performance of the iron core, which are used for carrying out total detection on the magnetic performance of the iron core on an assembly line.
An embodiment of the present invention provides an online detection device for magnetic performance of an iron core, and fig. 1 is a schematic diagram of an online detection device for magnetic performance of an iron core provided in an embodiment of the present invention, as shown in fig. 1, the online detection device for magnetic performance of an iron core includes: the device control system 10, the iron loss tester 20, the clamp 30, the mandrel 40 and the horizontal workbench 50;
vertical direction sets up dabber 40 is fixed on horizontal table 50, anchor clamps 30 set up the upper end of dabber 40 is used for will overlapping the upper end of dabber 40 iron core 90 presss from both sides tightly fixedly, iron loss tester 20 includes first test terminal 21 and second test terminal 22, second test terminal 22 walks the line and passes dabber 40 is fixed the top of dabber 40, first test terminal 21 be used for with second test terminal 22 docks and forms closed loop in order to detect iron core 90's magnetic property, device control system 10 connects iron loss tester 20.
Further, the device for detecting the magnetic property of the iron core on line further comprises a supporting plate 60, wherein the supporting plate 60 arranged in the horizontal direction is sleeved on the mandrel 40 and can move up and down between the horizontal workbench 50 and the clamp 30. The supporting plate 60 is a flat plate structure, and is provided with a through hole, and the supporting plate 60 is sleeved on the mandrel 40 through the through hole arranged on the supporting plate and can move up and down between the horizontal workbench 50 and the clamp 30.
Further, the device for detecting the magnetic property of the iron core on line further comprises a first manipulator 70, wherein the first manipulator 70 is arranged between the mandrel 40 and the upper process channel 103, and the first manipulator 70 is used for conveying the iron core 90 to be wound, which flows in through the upper process channel 103, to the upper end of the mandrel 40 to be detected.
Further, the device for detecting the magnetic property of the iron core on line further comprises a second manipulator 80, wherein the second manipulator 80 is arranged between the mandrel 40 and a circulation channel of a next process, and is used for conveying the detected iron core 90 to the circulation channel.
An embodiment of the present invention further provides an on-line detection method for magnetic properties of an iron core, in which the above-mentioned on-line detection device for magnetic properties of an iron core is applied, the iron core 90 flows in through the upper process passage 103, the first manipulator 70 transfers the iron core 90 to the upper end of the mandrel 40 and is clamped and fixed by the clamp 30, the first test terminal 21 and the second test terminal 22 of the iron loss tester 20 are in butt joint to detect the magnetic properties of the iron core 90, and transfer the detection result back to the device control system 10 through a signal line, and the device control system 10 transfers the iron core 90 to the circulation passage through the second manipulator 80 according to the detection result. It should be noted that the first robot 70 and the second robot 80 may be combined into one robot, and one robot may complete the transfer of all the cores; meanwhile, the manipulator is not an indispensable structure, and the transfer of the iron core may also be manually performed.
Further, the magnetic properties of the iron core include iron loss and magnetic induction strength. Wherein the iron loss refers to the sum of hysteresis loss and eddy current loss in alternating and pulsating magnetic fields per unit mass of ferromagnetic material (the residual loss is negligible). Transformers, generators and motors all have iron losses. The iron loss is one of the energy losses, and the reason is that eddy current is generated inside the iron core during operation, and when the eddy current passes through the iron core, heat energy is generated inside the iron core, and the heat energy is consumed, so the iron loss is called. The core loss includes hysteresis loss, eddy current loss, and residual loss of a magnetic material.
Further, the circulation channel includes a qualified product channel 101 and an unqualified product channel 102, the iron core 90 with qualified magnetic performance detection of the iron core 90 flows into the qualified product channel 101, and the iron core 90 with unqualified magnetic performance detection of the iron core 90 flows into the unqualified product channel 102.
Further, before the iron core 90 with unqualified magnetic performance detection flows into the unqualified product channel 102, the supporting plate 60 descends to the horizontal workbench 50, the fixture 30 releases the iron core 90, the iron core 90 automatically falls along the mandrel 40 to the supporting plate 60 for correction, then the supporting plate 60 lifts the iron core 40 back to the clamping position and detects the magnetic performance of the iron core 90 again, the iron core 90 with qualified magnetic performance detection flows into the qualified product channel 101 again, and the iron core 90 with unqualified magnetic performance detection flows into the unqualified product channel 102 again. The correction is to correct the magnetic property abnormality of the iron core 90 caused by the self-clinching rivet point stress or the welding deformation stress. The magnetic performance online detection device of the iron core integrates the magnetic performance total detection and the automatic falling magnetic performance restoration of the iron core 90, the self-buckling type riveting point stress or the welding deformation stress is caused, the magnetic performance of the iron core 90 is corrected abnormally, the unqualified iron core is prevented from being transferred to a winding process, the production cost is reduced, and the production efficiency is improved.
Further, the iron core 90 flowing into the non-defective product passage 101 is subjected to a winding process, and the iron core 90 flowing into the defective product passage 102 is recovered and repaired. The recovered and repaired iron core can be repaired by methods such as re-heat treatment and the like and then recycled, so that the production cost is reduced.
In summary, in the apparatus and method for detecting magnetic property of an iron core according to an embodiment of the present invention, the apparatus for online detecting magnetic property of an iron core includes: the device comprises a device control system, an iron loss tester, a clamp, a mandrel, a supporting plate and a horizontal workbench; the dabber sets up of vertical direction is fixed on the horizontal table, anchor clamps set up the upper end of dabber is used for will overlapping the upper end of dabber the iron core presss from both sides tightly fixedly, the iron loss tester includes first test terminal and second test terminal, the second test terminal walks the line and passes the dabber is fixed the top of dabber, first test terminal be used for with second test terminal butt joint forms closed loop in order to detect the magnetic property of iron core, device control system connects the iron loss tester. The iron core is conveyed to the upper end of the core shaft and is clamped and fixed by the clamp, the iron loss tester detects the magnetic performance of the iron core and transmits a detection result back to the device control system through a signal wire, and the device control system enables the iron core with qualified magnetic performance to flow into the qualified product channel according to the detection result. And the iron core with unqualified magnetic property detection is released by the fixture, the iron core automatically falls to the supporting plate along the core shaft to be corrected, then the supporting plate jacks the iron core back to a clamping position and detects the magnetic property of the iron core again, the magnetic property of the iron core detects the qualified iron core again and flows into the qualified product channel, otherwise, the iron core flows into the unqualified product channel.
The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any way. It will be understood by those skilled in the art that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. The utility model provides an online detection device of magnetic property of iron core for carry out the total number to the magnetic property of iron core and detect in the assembly line, its characterized in that, the online detection device of magnetic property of iron core includes: the device comprises a device control system, an iron loss tester, a clamp, a mandrel and a horizontal workbench;
the dabber sets up of vertical direction is fixed on the horizontal table, anchor clamps set up the upper end of dabber is used for will overlapping the upper end of dabber the iron core presss from both sides tightly fixedly, the iron loss tester includes first test terminal and second test terminal, the second test terminal walks the line and passes the dabber is fixed the top of dabber, first test terminal be used for with second test terminal butt joint forms closed loop in order to detect the magnetic property of iron core, device control system connects the iron loss tester.
2. The on-line detection device for the magnetic property of the iron core according to claim 1, further comprising a supporting plate, wherein the supporting plate arranged in the horizontal direction is sleeved on the mandrel and can move up and down between the horizontal workbench and the clamp.
3. The on-line detection device for the magnetic property of the iron core according to claim 1, further comprising a first manipulator, wherein the first manipulator is arranged between the mandrel and the previous process channel, and the first manipulator is used for conveying the iron core to be wound, which flows in through the previous process channel, to the upper end of the mandrel to be detected.
4. The on-line detection device for the magnetic property of the iron core according to claim 1, further comprising a second manipulator disposed between the mandrel and a circulation channel of a next process for transferring the iron core after detection to the circulation channel.
5. An on-line detection method for the magnetic performance of an iron core is characterized in that the on-line detection device for the magnetic performance of the iron core is applied to any one of claims 1 to 4, the iron core flows in through the upper process channel, the first manipulator conveys the iron core to the upper end of the mandrel and is clamped and fixed by the clamp, the first test terminal and the second test terminal of the iron loss tester are in butt joint to detect the magnetic performance of the iron core, a detection result is transmitted back to the device control system through a signal line, and the device control system conveys the iron core to the circulation channel through the second manipulator according to the detection result.
6. The method of claim 5, wherein the magnetic properties of the iron core comprise iron loss and strength of induction.
7. The on-line detection method for the magnetic property of the iron core according to claim 5, wherein the circulation channel comprises a qualified product channel and a rejected product channel, the iron core with the qualified magnetic property detected flows into the qualified product channel, and the iron core with the unqualified magnetic property detected flows into the rejected product channel.
8. The on-line detection method for the magnetic property of the iron core according to claim 7, wherein before the iron core with unqualified magnetic property detection flows into the unqualified product channel, the supporting plate descends to the horizontal workbench, the fixture releases the iron core, the iron core automatically falls along the mandrel to the supporting plate for correction, then the supporting plate lifts the iron core back to a clamping position and detects the magnetic property of the iron core again, the iron core with qualified magnetic property detection flows into the qualified product channel again, and the iron core with unqualified magnetic property detection flows into the unqualified product channel again.
9. The method for on-line detection of magnetic properties of an iron core according to claim 8, wherein the correction is a correction of abnormal magnetic properties of the iron core caused by a self-clinching point stress or a welding deformation stress.
10. The method of claim 8, wherein the core flowing into the acceptable passage is subjected to a winding process, and the core flowing into the unacceptable passage is recycled and reworked.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811362000.0A CN111190129B (en) | 2018-11-15 | 2018-11-15 | Online detection device and method for magnetic performance of iron core |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811362000.0A CN111190129B (en) | 2018-11-15 | 2018-11-15 | Online detection device and method for magnetic performance of iron core |
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| CN111190129A true CN111190129A (en) | 2020-05-22 |
| CN111190129B CN111190129B (en) | 2022-06-28 |
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| CN1737519A (en) * | 2005-07-18 | 2006-02-22 | 吉林大学 | Apparatus for measuring internal stress of ferromagnetic material |
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| CN206345884U (en) * | 2017-01-10 | 2017-07-21 | 包头市威丰稀土电磁材料股份有限公司 | A kind of magnetic field thermal treatment device for the continuously elongated smooth annealing of orientation silicon steel |
| CN108169667A (en) * | 2017-12-26 | 2018-06-15 | 浙江奔龙自动化科技有限公司 | Breaker of plastic casing end pressure, loop resistance, tripping force automatic checkout equipment |
| CN108490376A (en) * | 2018-04-26 | 2018-09-04 | 宁波兴茂电子科技有限公司 | A kind of rotary magnet torsion-testing tooling and its operating method |
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2018
- 2018-11-15 CN CN201811362000.0A patent/CN111190129B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1737519A (en) * | 2005-07-18 | 2006-02-22 | 吉林大学 | Apparatus for measuring internal stress of ferromagnetic material |
| CN205539419U (en) * | 2016-01-19 | 2016-08-31 | 郑州三晖互感器有限公司 | Semi -automatic testing arrangement of circle troidal core magnetic property |
| CN206345884U (en) * | 2017-01-10 | 2017-07-21 | 包头市威丰稀土电磁材料股份有限公司 | A kind of magnetic field thermal treatment device for the continuously elongated smooth annealing of orientation silicon steel |
| CN108169667A (en) * | 2017-12-26 | 2018-06-15 | 浙江奔龙自动化科技有限公司 | Breaker of plastic casing end pressure, loop resistance, tripping force automatic checkout equipment |
| CN108490376A (en) * | 2018-04-26 | 2018-09-04 | 宁波兴茂电子科技有限公司 | A kind of rotary magnet torsion-testing tooling and its operating method |
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| CN111190129B (en) | 2022-06-28 |
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