CN103063739A - Automatic image acquiring magnetic particle flaw detector for train axles - Google Patents
Automatic image acquiring magnetic particle flaw detector for train axles Download PDFInfo
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- CN103063739A CN103063739A CN2012105641826A CN201210564182A CN103063739A CN 103063739 A CN103063739 A CN 103063739A CN 2012105641826 A CN2012105641826 A CN 2012105641826A CN 201210564182 A CN201210564182 A CN 201210564182A CN 103063739 A CN103063739 A CN 103063739A
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Abstract
The invention discloses an automatic image acquiring magnetic particle flaw detector for train axles. The automatic image acquiring magnetic particle flaw detector for the train axles comprises a darkroom, wherein a hanger support and a magnetic particle flaw detector body is arranged in the darkroom. The magnetic particle flaw detector body comprises a magnetic suspension spraying mechanism, an open-close type electromagnetic coil, a linear guide rail, a workpiece clamp, a rotation driving mechanism and a linear driving mechanism, wherein the open-close type electromagnetic coil is installed on a sliding block, the workpiece clamp is used for clamping the workpiece which is sleeved in the open-close type electromagnetic coil when flaws are detected, the rotation driving mechanism is used for driving the workpiece to rotate, the linear driving mechanism is used for driving the open-close type electromagnetic coil to move along the linear guide rail, image acquiring mechanisms arranged in a straight line is installed on the hanger support, and two parallel ultraviolet light illuminating lines are symmetrically arranged on the two sides of the straight line. The automatic image acquiring magnetic particle flaw detector for the train axles can facilitate the judge on whether flaws exist on the workpiece or not of an operator outside the range of the darkroom, and avoids the long-term work of the operator under an environment with ultraviolet rays.
Description
Technical field
The present invention relates to a kind of the cannot-harm-detection device, relate in particular to a kind of train axle automated graphics picked-up magnaflux.
Background technology
Magnetic powder inspection is after utilizing ferrimagnet to be magnetized, because discontinuous existence, local distortion occurs and produces stray field (being the magnetic field that lines of magnetic induction leaves and forms when entering the surface) absorption and be applied to the magnetic of surface of the work in the magnetic line of force that makes surface of the work and nearly surface, be formed on appropriate light according to lower visual visible magnetic trace, thereby demonstrate position, shape and the size of uncontinuity.Magnetic powder inspection can detect the defectives such as crackle, hairline, white point, folding line, snotter in the magnet material, has very high detection sensitivity, and can demonstrate intuitively position, shape, size and the order of severity of defective, checks the good reproducibility of defective.
Usually adopt MPI fluorescent magnetic particles to cooperate the irradiation of ultraviolet light in the prior art, come train axle is detected by artificial observation magnetic trace, artificial observation is wasted time and energy, and easily undetected, and if operating personnel's long term exposure under ultraviolet light, also can damage to some extent operator's health.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the invention provides a kind of train axle automated graphics picked-up magnaflux, can automatically the magnetic trace on the workpiece be absorbed and show outside the darkroom by display, reduce manually-operated.
Technical scheme: for solving the problems of the technologies described above, the technical solution used in the present invention is:
Train axle automated graphics picked-up magnaflux comprises the darkroom, is provided with suspension and magnetic powder inspection body in the darkroom; Described magnetic powder inspection body comprises magnetic flaw detection ink spraying mechanism, open-close type electromagnetic coil, line slideway, workholder, rotary drive mechanism and straight line driving mechanism; Described open-close type electromagnetic coil comprises left pawl and right pawl, and the head of described left pawl and right pawl is provided with suitable latch mechanism, root is installed on the slide block by collector ring; Described slide block is installed on the line slideway, and described workholder is used for clamping the two ends, the left and right sides of workpiece, and workpiece is enclosed within the open-close type electromagnetic coil and along the line slideway direction during flaw detection; Described magnetic flaw detection ink spraying mechanism is used for the surface sprinkling magnetic flaw detection ink to workpiece, and described rotary drive mechanism is used for driving workpiece and rotates, and described straight line driving mechanism is used for driving open-close type electromagnetic coil and moves along line slideway; Be provided with one group of image picked-up mechanism on the described suspension, described all image capture mechanisms are evenly distributed in alignment along the workpiece direction, are provided with two parallel ultraviolet lighting open-wire lines in the symmetria bilateralis of this straight line.
Said apparatus is at first opened open-close type electromagnetic coil in use, then workpiece is put into open-close type electromagnetic coil by opening, and clamps by workholder, and is again that open-close type electromagnetic coil is closed and locked; Spray upper magnetic by the magnetic flaw detection ink spraying mechanism to surface of the work; Drive slide block drive open-close type coil by straight line driving mechanism and move along guide rail, make workpiece magnetizing; Under ultraviolet lighting open-wire line lighting condition, use image capture mechanism that workpiece is carried out image capture along the line; After turning an angle by rotary drive mechanism driving workpiece again, reuse image capture mechanism workpiece is carried out image capture along the line, until the picture that workpiece all surface image along the line is all absorbed by image capture mechanism; The picked-up picture worker operating personnel judge whether workpiece exists defective, also can whether have defective for more existing image analysis software auto judge workpiece.
In the said apparatus, open-close type electromagnetic coil is magnetizable body; Adopt the wet method display defect, because the used granularity of magnet powder of wet method is thinner, in liquid, more easily flow, its sensitivity is also high, use the long wave ultraviolet light irradiation in the darkroom, yellowish green light belt occurs in the magnetic that is gathered in fault location, is easilier obtained suitable image by image capture mechanism; The design of open-close type electromagnetic coil structure with respect to existing complete closing structure, has made things convenient for the installation of workpiece, avoid simultaneously workpiece in installation process to the magnetizable body injury; Symmetrically arranged two parallel ultraviolet lighting open-wire lines can throw light on to it in the both sides of image capture mechanism, only avoid in side illumination so that image capture mechanism because the generation of the even situation such as not fogging clear that causes absorbing of uneven illumination; It is suitable that the number of image capture mechanism needs, and needs all positions of searching surface as basic demand can photograph workpiece.
Preferably, also comprise controller, be provided with magnetic flaw detection ink spraying mechanism control module, rotary drive mechanism control module, straight line driving mechanism control module, open-close type electromagnetic coil control module, ultraviolet illumination line traffic control module and image capture mechanism controls module in the described controller; Described magnetic flaw detection ink spraying mechanism control module is controlled the spray of magnetic flaw detection ink spraying mechanism, described rotary drive mechanism control module is controlled rotary drive mechanism, described straight line driving mechanism control module is controlled straight line driving mechanism, described open-close type electromagnetic coil control module is controlled the folding of open-close type electromagnetic coil, described ultraviolet illumination line traffic control module is controlled the illumination of ultraviolet lighting open-wire line, and described image capture mechanism controls module is controlled the image capture of image capture mechanism controls.
Can realize the robotization control of this device by controller, adapt to the demand of automated production; Simultaneously, modular design is adopted in the control of all parts, also be convenient to the maintenance in later stage; Certainly for controller, can also comprise other functional module except the above-mentioned functional module that exemplifies, such as to control of dark-room door etc.
Preferably, described controller and input media are connected display device and are connected with output, input media is used for input of control commands or retrieval command etc., and export/display device is used for output information, the convenient operation librarian use, the picture worker operating personnel that absorb such as input pass judgment on whether there is defective etc.
Preferably, described image capture mechanism controls module comprises automatic focusing unit, conventional unit, bust shot unit, the image storage unit of taking, focus automatically in described automatic focusing unit controls image capture unit, the described conventional unit controls image capture unit of taking carries out the stock size image capture, and described bust shot unit controls image capture unit carries out the up-sizing image capture.When finding that there is defective in workpiece, for further defect recognition or for further analyzing defect situation, can carry out bust shot to defective locations or ad-hoc location by bust shot unit controls image capture mechanism, so that the later stage is analyzed image.
Preferably, described image capture mechanism controls module also comprises the Identification of Cracks unit, the image that the unit picked-up is taken to routine in described Identification of Cracks unit carries out Identification of Cracks, exists crackle then to carry out the up-sizing image capture in Automatically invoked bust shot unit if be identified as; Certainly can also design the image of the Identification of Cracks unit routine being taken the unit picked-up and carry out Identification of Cracks, exist crackle then to start warning device prompting operating personnel etc. if be identified as; The Identification of Cracks unit by to the picked-up picture analyze, such as with the modes such as normal pictures compares, draw workpiece and whether have the conclusions such as defective, had now some similar devices.
Preferably, be provided with general lamp lighting mechanism in the described darkroom; Carry out the darkroom built-in function operating personnel, the dismounting such as arrangement, maintenance, workpiece needs illumination condition, if adopt the ultraviolet lighting open-wire line, illuminating effect is poor on the one hand, also is unfavorable on the other hand operator ' s health.
Preferably, the solid members of described ultraviolet lighting open-wire line is arranged on outside the picked-up scope of all image capture mechanisms, avoids the ultraviolet lighting open-wire line that the work of image capture mechanism is interfered.
Preferably, the magnetic that uses in the described magnetic flaw detection ink spraying mechanism, the mass percent of soluble iron is in 70.00 ~ 72.00% scopes, and the mass percent of copmbined-carbon is below 0.15%, and the granularity of magnetic is in 320 ~ 400 order scopes; Magnetic should have high magnetoconductivity, pure quality, the granularity of appropriateness, the defective that can clearly show crackle, otherwise will be difficult for or can not be attracted by leakage flux, experiment showed, that the magnetic of afore mentioned rules can greatly improve service property (quality) in the situation that low cost increases.
Preferably, described magnetic powder inspection body also comprises and takes off magnetic mechanism; Because workpiece can exist certain magnetic residual after magnetic is surveyed, if do not take off magnetic by taking off magnetic mechanism, magnetic force is drawn some metallic impurity, increase its mantle friction when using in its later stage and workpiece is caused wearing and tearing.
Beneficial effect: train axle automated graphics picked-up magnaflux provided by the invention, can be automatically the image of surface of the work be absorbed by image capture mechanism, whether the handled easily personnel exist defective to pass judgment on to workpiece outside the scope of darkroom, avoid operating personnel's long-term work in ultraviolet situation, can process by the relevant device of robotization the image of picked-up simultaneously, realize the transition to the automated production direction.
Description of drawings
Fig. 1 is the structural representation of facing of the present invention;
Fig. 2 is side-looking sectional structure schematic diagram of the present invention;
The structured flowchart of Fig. 3 controller;
Fig. 4 is the structured flowchart of image capture mechanism controls module.
Embodiment
Below in conjunction with accompanying drawing the present invention is further described.
Be a kind of train axle automated graphics picked-up magnaflux as shown in Figure 1 and Figure 2, it is characterized in that: comprise darkroom 1, in darkroom 1, be provided with suspension 2, general lamp lighting mechanism, magnetic powder inspection body and controller.
Described magnetic powder inspection body comprises magnetic flaw detection ink spraying mechanism, open-close type electromagnetic coil 7, line slideway 5, workholder 8, rotary drive mechanism 9, takes off magnetic mechanism and straight line driving mechanism; Described open-close type electromagnetic coil 7 comprises left pawl and right pawl, and the head of described left pawl and right pawl is provided with suitable latch mechanism, root is installed on the slide block 6 by collector ring; Described slide block 6 is installed on the line slideway 5, and described workholder 8 is used for clamping the two ends, the left and right sides of workpiece 10, and workpiece 10 is enclosed within the open-close type electromagnetic coil 7 and along line slideway 5 directions during flaw detection; Described magnetic flaw detection ink spraying mechanism is used for the surface sprinkling magnetic flaw detection ink to workpiece 10, and described rotary drive mechanism 9 is used for driving workpiece 10 and rotates, and described straight line driving mechanism is used for driving open-close type electromagnetic coil 7 and moves along line slideway 5; Be provided with one group of image picked-up mechanism 3 on the described suspension 2, described all image capture mechanisms 3 are evenly distributed in alignment along workpiece 10 directions, symmetria bilateralis at this straight line is provided with two parallel ultraviolet lighting open-wire lines 4, and the solid members of described ultraviolet lighting open-wire line 4 is arranged on outside the picked-up scope of all image capture mechanisms 3.
The magnetic that uses in the described magnetic flaw detection ink spraying mechanism, the mass percent of soluble iron are in 70.00 ~ 72.00% scopes, and the mass percent of copmbined-carbon is below 0.15%, and the granularity of magnetic is in 320 ~ 400 order scopes.
Be provided with dark-room door control module, general lamp lighting control module, magnetic flaw detection ink spraying mechanism control module, rotary drive mechanism control module, straight line driving mechanism control module, open-close type electromagnetic coil control module, ultraviolet illumination line traffic control module and image capture mechanism controls module in the described controller; Described dark-room door control module is controlled the switch of dark-room door, and described web is pedaled lighting control module the switch of general lamp lighting mechanism is controlled; Described magnetic flaw detection ink spraying mechanism control module is controlled the spray of magnetic flaw detection ink spraying mechanism, described rotary drive mechanism control module is controlled rotary drive mechanism, described straight line driving mechanism control module is controlled straight line driving mechanism, described open-close type electromagnetic coil control module is controlled the folding of open-close type electromagnetic coil, described ultraviolet illumination line traffic control module is controlled the illumination of ultraviolet lighting open-wire line, and described image capture mechanism controls module is controlled the image capture of image capture mechanism controls; Described controller and input media are connected display device and are connected with output.
Wherein, described image capture mechanism controls module comprises automatic focusing unit, the conventional unit of taking, the bust shot unit, image storage unit and Identification of Cracks unit, focus automatically in described automatic focusing unit controls image capture unit, the described conventional unit controls image capture unit of taking carries out the stock size image capture, described bust shot unit controls image capture unit carries out the up-sizing image capture, the image that the unit picked-up is taken to routine in described Identification of Cracks unit carries out Identification of Cracks, exists crackle then to carry out the up-sizing image capture in Automatically invoked bust shot unit if be identified as.
The above only is preferred implementation of the present invention; be noted that for those skilled in the art; under the prerequisite that does not break away from the principle of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (9)
1. train axle automated graphics picked-up magnaflux is characterized in that: comprise darkroom (1), be provided with suspension (2) and magnetic powder inspection body in darkroom (1);
Described magnetic powder inspection body comprises magnetic flaw detection ink spraying mechanism, open-close type electromagnetic coil (7), line slideway (5), workholder (8), rotary drive mechanism (9) and straight line driving mechanism; Described open-close type electromagnetic coil (7) comprises left pawl and right pawl, and the head of described left pawl and right pawl is provided with suitable latch mechanism, root is installed on the slide block (6) by collector ring; Described slide block (6) is installed on the line slideway (5), and described workholder (8) is used for clamping the two ends, the left and right sides of workpiece (10), and workpiece during flaw detection (10) is enclosed within the open-close type electromagnetic coil (7) and along line slideway (5) direction; Described magnetic flaw detection ink spraying mechanism is used for the surface sprinkling magnetic flaw detection ink to workpiece (10), and described rotary drive mechanism (9) is used for driving workpiece (10) and rotates, and it is mobile along line slideway (5) that described straight line driving mechanism is used for driving open-close type electromagnetic coil (7);
Be provided with one group of image picked-up mechanism (3) on the described suspension (2), described all image capture mechanisms (3) are evenly distributed in alignment along workpiece (10) direction, are provided with two parallel ultraviolet lighting open-wire lines (4) in the symmetria bilateralis of this straight line.
2. train axle automated graphics according to claim 1 absorbs magnaflux, it is characterized in that: also comprise controller, be provided with magnetic flaw detection ink spraying mechanism control module, rotary drive mechanism control module, straight line driving mechanism control module, open-close type electromagnetic coil control module, ultraviolet illumination line traffic control module and image capture mechanism controls module in the described controller; Described magnetic flaw detection ink spraying mechanism control module is controlled the spray of magnetic flaw detection ink spraying mechanism, described rotary drive mechanism control module is controlled rotary drive mechanism, described straight line driving mechanism control module is controlled straight line driving mechanism, described open-close type electromagnetic coil control module is controlled the folding of open-close type electromagnetic coil, described ultraviolet illumination line traffic control module is controlled the illumination of ultraviolet lighting open-wire line, and described image capture mechanism controls module is controlled the image capture of image capture mechanism controls.
3. train axle automated graphics according to claim 2 picked-up magnaflux is characterized in that: described controller and input media are connected display device and are connected with output.
4. train axle automated graphics according to claim 2 absorbs magnaflux, it is characterized in that: described image capture mechanism controls module comprises automatic focusing unit, conventional unit, bust shot unit, the image storage unit of taking, focus automatically in described automatic focusing unit controls image capture unit, the described conventional unit controls image capture unit of taking carries out the stock size image capture, and described bust shot unit controls image capture unit carries out the up-sizing image capture.
5. train axle automated graphics according to claim 4 absorbs magnaflux, it is characterized in that: described image capture mechanism controls module also comprises the Identification of Cracks unit, the image that the unit picked-up is taken to routine in described Identification of Cracks unit carries out Identification of Cracks, exists crackle then to carry out the up-sizing image capture in Automatically invoked bust shot unit if be identified as.
6. train axle automated graphics picked-up magnaflux according to claim 1 is characterized in that: be provided with general lamp lighting mechanism in described darkroom (1).
7. train axle automated graphics according to claim 1 absorbs magnaflux, and it is characterized in that: the solid members of described ultraviolet lighting open-wire line (4) is arranged on outside the picked-up scope of all image capture mechanisms (3).
8. train axle automated graphics according to claim 1 absorbs magnaflux, it is characterized in that: the magnetic that uses in the described magnetic flaw detection ink spraying mechanism, the mass percent of soluble iron is in 70.00 ~ 72.00% scopes, the mass percent of copmbined-carbon is below 0.15%, and the granularity of magnetic is in 320 ~ 400 order scopes.
9. train axle automated graphics according to claim 1 picked-up magnaflux is characterized in that: described magnetic powder inspection body also comprises and takes off magnetic mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210564182.6A CN103063739B (en) | 2012-12-21 | 2012-12-21 | Train axle automated graphics picked-up magnaflux |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210564182.6A CN103063739B (en) | 2012-12-21 | 2012-12-21 | Train axle automated graphics picked-up magnaflux |
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| Publication Number | Publication Date |
|---|---|
| CN103063739A true CN103063739A (en) | 2013-04-24 |
| CN103063739B CN103063739B (en) | 2016-02-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210564182.6A Expired - Fee Related CN103063739B (en) | 2012-12-21 | 2012-12-21 | Train axle automated graphics picked-up magnaflux |
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Cited By (3)
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| CN103267799A (en) * | 2013-05-30 | 2013-08-28 | 南车四方车辆有限公司 | Axle magnetic powder flaw detection device and method |
| CN103412042A (en) * | 2013-08-27 | 2013-11-27 | 北京磁通设备制造有限公司 | Axle magnetic powder diagnostic machine with image display function |
| CN117233244A (en) * | 2023-11-10 | 2023-12-15 | 宝鸡市双宏液压机械有限公司 | Valve flaw detection device and flaw detection method |
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| CN103267799A (en) * | 2013-05-30 | 2013-08-28 | 南车四方车辆有限公司 | Axle magnetic powder flaw detection device and method |
| CN103412042A (en) * | 2013-08-27 | 2013-11-27 | 北京磁通设备制造有限公司 | Axle magnetic powder diagnostic machine with image display function |
| CN117233244A (en) * | 2023-11-10 | 2023-12-15 | 宝鸡市双宏液压机械有限公司 | Valve flaw detection device and flaw detection method |
| CN117233244B (en) * | 2023-11-10 | 2024-01-30 | 宝鸡市双宏液压机械有限公司 | Valve flaw detection device and flaw detection method |
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