CN202453324U - Nondestructive testing system for gun barrel - Google Patents
Nondestructive testing system for gun barrel Download PDFInfo
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- CN202453324U CN202453324U CN2011205116627U CN201120511662U CN202453324U CN 202453324 U CN202453324 U CN 202453324U CN 2011205116627 U CN2011205116627 U CN 2011205116627U CN 201120511662 U CN201120511662 U CN 201120511662U CN 202453324 U CN202453324 U CN 202453324U
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Abstract
The utility model belongs to a micro-magnetic testing device and particularly relates to a nondestructive testing system for a gun barrel. According to the system, two testing manners, namely external testing and internal testing which are combined, are designed aiming at the requirements that the defect nondestructive testing can be carried out on the gun barrel in two states, namely production state (independent) and service state (assembled in a gun), the nondestructive testing on gun barrels (production state or service state) of various calibers and various lengths is realized by adopting magnetic sensors or a magnetic sensor array with high sensitivity and rapid response and combining driving and signal control devices, and the accurate positioning and quantitative analysis of damages are realized through establishing a defect discrimination model and designing gun barrel testing software based on gun barrel damage characteristics. The system is convenient in operation and intuitive in effect.
Description
Technical field
The utility model belongs to a kind of little magnetic indicator loop, is specifically related to the gun barrel non-destructive detection device.Can portable, high performance gun barrel non-destructive detection device can be applied to the detection of thorax in multiple firearms, the steel pipe.
Background technology
Existing failure detector has multiple, and like UT (Ultrasonic Testing), magnetic powder inspection, eddy current test, permeation flaw detection, endoscope, radiographic inspection, infrared thermal wave flaw detection, acoustic resonance non-destructive detection device etc., various failure detectors all have certain limitation in the fault localization of gun barrel; Like UT (Ultrasonic Testing), because probe is not the gun barrel special use, Effect on Detecting is not good; And to can't finely detecting less than the damage below the 0.1mm; Endoscope can not be surveyed the damage of gun barrel inside, and magnetic, permeation flaw detection have pollution, uses very inconvenient; Radiographic inspection equipment is huge, and the infrared thermal wave carrying out flaw detection degree of depth is dark not enough; Acoustic resonance nondestructive examination acoustic emission signal is very faint, is prone to covered by neighbourhood noise, and the resolution of eddy current test is not high, also not to the gun barrel special probe.The gun barrel flaw detection mainly is the gun barrel flaw detection of two states, and a kind of is in the production run, and gun barrel is a naked state, both can detect a flaw internally to this state, also can detect a flaw from the outside; A kind of state that is to use; Gun barrel inconvenience disassembles from gun; Basic employing is detected a flaw internally; Therefore the gun barrel failure detector should possess the detection to above-mentioned two states, simultaneously should be to various bores, and the gun barrel of especially small-bore little gun barrel and all lengths can both effectively be surveyed.
Summary of the invention
The purpose of the utility model is; A kind of failure detector that can effectively survey the gun barrel of above-mentioned two states is provided; Can especially comprise the little gun barrel of 5.45mm bore and the gun barrel of all lengths to various bores, comprising the Long Barrel of length about 1m can both effectively survey.
The utility model is achieved in that a kind of gun barrel nondestructive examination system, this fault detection system by display system, main frame, PLC kinetic control system, visit device, interior spy device, Mobile Slide, gun barrel left socle, magnetizing assembly, gun barrel right support outward and form.It is characterized in that: the working interface that described display system is accomplished magnetic flaw detection software shows; The operation of described main frame supporting movement control card, data acquisition card, software systems, operating system; Described PLC kinetic control system is accomplished the setting to the motion control parameter of servomotor through the touch screen mode, thereby realizes the mobile control of electronic slide unit and the rotation control of gun barrel; The described outer device of visiting is made up of handle, screw rod, probe holder, outer probe, lower guideway, pressing plate, slide plate.Can in the chute of lower guideway, move by turn slide plate drive probe through rotary handle, thereby change the radial position of popping one's head in, adapt to the gun barrel detection of different bores.Visiting device in described is made up of interior probe, inserting tube, bearing, optical axis support, synchronizing wheel, synchronous band, motor, electric machine support, motor control box, collecting sensor signal and output control enclosure, support plate.Interior probe is terminal to insert in the inserting tube end slot wringing fit.Probe signal and power lead are walked from inserting tube, link to each other with aviation plug.The inserting tube afterbody is enclosed within bearing, and two bearings is fixed on the optical axis support separately.Motor control box control motor movement, motor movement drives the synchronizing wheel that is fixed on the motor shaft and rotates, and this rotation drives the synchronizing wheel that is fixed on the inserting tube through the synchronizing wheel band and rotates, and synchronizing wheel drives inserting tube and rotates, thereby realizes the circumferential detection of probe to gun barrel.Motor is fixed in the electric machine support.The circumferential detection of probe and positive and negative rotation are by motor control box switch and the control of speed governing button.Support plate is fixed on the electronic slide unit, and the mobile realization probe of electronic slide unit is to the axial detection of gun barrel.Described Mobile Slide is accomplished by electronic slide unit, can realize that under the driving of servomotor straight line moves.Described gun barrel left socle by handle knob, tailstock spindle, tailstock body, spring, axle form with collar, top, slide plate, column, tailstock substrate, connection right angle, jackscrew, web joint with collar, bearing with retaining shield, axle with collar, hole, right support is made up of connection bent plate, shaft coupling, bearing seat, main shaft, servomotor, column, slide plate, connection right angle, jackscrew.On vertical slide rail, can adjust left and right pillar and vertically slide on the slide rail, confirms the position of left and right pillar flexibly according to the requirement of the length of surveying gun barrel and detecting location by loosening screw by screw retention for column.Left and right pillar is fixed by connecting the right angle.Servomotor by screw retention on the connection bent plate of right support.By handle knob, tailstock spindle, tailstock body, spring, axle with collar, hole with collar, bearing with retaining shield, spool with collar, the top flexible adjustment device of forming.The installation and removal gun barrel is accomplished by the flexible adjustment device of gun barrel left socle is auxiliary.Wheelwork is made up of connection bent plate, shaft coupling, bearing seat, main shaft, servomotor.The rotation of gun barrel is driven by wheelwork and realizes.For adapting to the gun barrel of different bores, top employing tapering is 60 degree, and diameter is the cone of 20mm.Described magnetizing assembly adopts the Helmholtz coils mode; Logical certain electric current; Produce the space uniform magnetic field in the Helmholtz coils; The intensity in this magnetic field is regulated by the adjustable voltage power supply, adopts accumulator to supply power for this power supply, influences the detection of magnetic signal to eliminate the ripple that causes owing to the power supply instability.It is very faint that the design of magnetizing coil mainly solves the damage magnetic signal of gun barrel to be measured, the problem that is difficult to survey.Can improve the damage magnetic signal of gun barrel to be measured through magnetizing coil, so that survey.
This section deletion
This section deletion
Described gun barrel nondestructive examination system; It is characterized in that: visit outward in the coil former that device is fixed on magnetizing assembly; Gun barrel passes from the magnetizing coil frame; Consider the miniaturization of mechanical hook-up simultaneously, magnetizing coil frame internal diameter is designed to 50mm, and the moving direction that probe is visited in the device outside is the coil former internal diameter direction.Purpose is to strengthen Effect on Detecting, visits outside in the device course of work, and magnetizing coil work, the magnetization of the gun barrel to be measured of the magnetizing coil intensifier coil section of comprising, probe more advantageously detects the faint magnetic signal of damage of to be measured section gun barrel like this.
The described outer device of visiting is characterized in that: visit device outward and be designed to circumferential array version, circumferential three outer probes evenly distribute, and three probes can carry out work according to the detection needs, realize the comprehensive detection to gun barrel.
Probe in described, it is characterized in that: its operating circuit is made up of five parts: amorphous wire probe, exciting circuit, signal amplification circuit, current rectifying and wave filtering circuit, feedback circuit.Exciting circuit adopts the active oscillating device, produces similar triangle field wave; The work under exciting circuit of amorphous wire probe, to the induction of gun barrel damage carrying out magnetic signal, respective impedance changes; Signal amplification circuit amplifies the voltage change signal that the amorphous wire impedance variations causes; The voltage signal that current rectifying and wave filtering circuit will pass through amplification carries out rectifying and wave-filtering, removes undesired signal, keeps useful signal; The feedback circuit effect has 3 points: the corresponding relation of at first improving output voltage and induced field; Improve output frequency characteristic then; Be to eliminate hysteresis again.Through this circuit, can realize induction to the Weak magentic-field signal, its magnetic field order of magnitude can reach 1nT.
Described outer probe, it is characterized in that: its operating circuit is made up of five parts: Magnetic Sensor, pre-amplification circuit, second amplifying circuit, reset circuit, biasing circuit.Magnetic Sensor adopts resolution at 27 microgasusses, the sensitivity magnetoresistive transducer at 3mv/v/OG; Pre-amplification circuit carries out first order amplification with little field signal of magnetoresistive transducer induction, and enlargement factor is at 20 times; Second amplifying circuit further amplifies 10 times with signal; Biasing circuit will be exported 1/2 place that signal is biased in supply power, guarantee the full width of cloth of output signal; Reset circuit solves the disturbing magnetic field signal makes magnetoresistive transducer saturated, and the problem of cisco unity malfunction can make recovery magnetoresistive transducer normal operating conditions through this circuit.
Described a kind of magnetic flaw detection software, it is characterized in that: this software is made up of five parts: parameter input module, magnetic signal collection and display module, sensor positional feedback information module, detectable signal file storage and playback module, the magnetic number of making inquiries about damage location and quantitative test module.Parameter input module is accomplished the setting of initial state information, gun barrel information to be measured, motion control information.Initial state information refers to that gun barrel to be measured detects null position, electronic slide unit motion reference position.Gun barrel information to be measured refers to gun barrel title to be measured, gun barrel diameter to be measured and barrel length to be measured.Motion control information is divided into three kinds of situation and is provided with.A kind of for interlock situation controlled variable, a kind of is rectilinear motion situation controlled variable, a kind ofly is the situation controlled variable that rotatablely moves.The interlock situation refers to the situation that gun barrel rotation to be measured and magnetic probe rectilinear motion carry out simultaneously.The rectilinear motion situation refers to gun barrel transfixion to be measured, the straight-line situation of magnetic probe.The situation of rotatablely moving refers to gun barrel rotation to be measured, the situation that probe stationary is motionless.Controlled variable under the interlock situation mainly contains three types of parameters to be needed to be provided with: one type is the magnetic probe displacement of stage n for the gun barrel rotating cycle of stage n, one type of gun barrel for stage n rotate rotating speed, one type.The gun barrel rotating cycle refers to that the gun barrel that moves when finishing from zero point to this stage rotates the absolute displacement value, and unit is number of turns R.The magnetic probe displacement refers to that unit is a millimeter mm since the slide unit absolute displacement value of slide unit at zero point till when motion finishes in stage to this.Gun barrel rotation rotating speed refers to the gun barrel rotational speed, and unit is that per second changes RPS.Can be divided into one or two or three section as required controls.Controlled variable under the rectilinear motion situation mainly contains two types of parameters to be needed to be provided with: one type is the displacement of magnetic probe rectilinear motion; One type is the magnetic probe point-to-point speed.Slide unit absolute displacement value when the displacement of magnetic probe rectilinear motion refers to that motion finishes in stage from zero point to this, unit is a millimeter mm.The magnetic probe point-to-point speed refers to the slide unit speed of feed, and unit is per second millimeter mm/s.Controlled variable under the situation that rotatablely moves mainly contains two types of parameters to be needed to be provided with: one type is that gun barrel rotating cycle to be measured refers to that the gun barrel that moves when finishing from zero point to this stage rotates the absolute displacement value, and unit is number of turns R.One type is that gun barrel rotation rotating speed to be measured refers to the gun barrel rotational speed, and unit is that per second changes RPS.Magnetic signal collection and display module have two kinds of demonstrations: a kind ofly show simultaneously at same interface for the number of making inquiries about of a plurality of magnetic, a kind ofly show separately in separate interface for the number of making inquiries about of a plurality of magnetic that same interface shows simultaneously and helps magnetic and visit array effect analysis-by-synthesis and comparison; The independent displaying interface helps the result of detection on a certain road of clear analysis.Here maximum 4 road magnetic number of making inquiries about display interfaces have been designed.The sensor positional feedback information module is realized the dynamic demonstration of the axial location of corresponding gun barrel to be measured under the real-time follow-up magnetic probe rectilinear motion.Detectable signal file storage and playback module realize the file storage based on the waveform of the magnetic number of making inquiries about, and can read at any time and playback, so that analyze.Realize based on the magnetic number of making inquiries about damage location and quantitative test with the quantitative test module magnetic number of making inquiries about damage location: the sequence number of defective, the position of defective, defective are apart from the width of table position, defective, the length of defective, the degree of depth of defective.Can above-mentioned information be printed.
The beneficial effect of the utility model is:
1, be applicable to the gun barrel of any bore and length, can especially comprise the little gun barrel of 5.45mm bore and the gun barrel of all lengths to various bores, comprising the Long Barrel of length about 1m can both effectively survey.
2, be applicable to that the gun barrel under the various states detects: independent naked gun barrel, be assemblied in the gun barrel in the gun; Visit with outer in can carrying out gun barrel and visit; Can carry out orthoscopic, circumferentially formula, spiral detection to gun barrel; Can manually with automatically operate; Can accurately locate the gun barrel damage status, qualitative judgement, quantitative test, provide the fault localization report.
3, easy to operate, effect is directly perceived.
Description of drawings
Fig. 1 is that the single unit system of the utility model is formed synoptic diagram;
Fig. 2 is the single unit system principle of work synoptic diagram of the utility model;
Fig. 3 is that the single unit system structure of the utility model is formed synoptic diagram;
Fig. 4 is the outer spy apparatus structure synoptic diagram of the utility model;
Fig. 5 is the interior spy apparatus structure synoptic diagram of the utility model;
Fig. 6 is the gun barrel support device structure synoptic diagram of the utility model;
Fig. 7 is the interior probe circuit principle schematic of the utility model;
Fig. 8 is the outer probe circuit principle schematic of the utility model;
Fig. 9 is the magnetic flaw detection software synoptic diagram of the utility model;
Embodiment
A kind of embodiment to the utility model introduces below in conjunction with accompanying drawing:
As shown in Figure 1, a kind of gun barrel nondestructive examination system forms synoptic diagram.This fault detection system by display system 111, main frame 112, PLC kinetic control system 113, visit device 114, interior spy device 115, Mobile Slide 116, gun barrel left socle 117, magnetizing assembly 118, gun barrel right support 119 outward and form.
As shown in Figure 2, a kind of gun barrel nondestructive examination system works principle schematic.This fault detection system can carry out work in two ways.A kind of working method is that motion control and signals collecting are independently carried out; By PLC kinetic control system 113 control servomotors 1; The electronic slide unit 2 of servomotor 1 control, electronic slide unit 2 drive the outer device 114 of visiting and move according to the stage kinematic parameter of setting with interior spy device 115; PLC kinetic control system 113 control servomotors 214; Servomotor 214 control gun barrel wheelworks 215; Gun barrel wheelwork 215 drives gun barrel and rotates according to the rotating speed of setting; The outer outer spy probe of visiting on the device 114 17 is realized the fault localization to gun barrel with the interior spy probe 44 on the interior spy device 115 under magnetic signal collection and 54 controls of output control enclosure, the signal that detects is transferred to oscillograph 216 via magnetic signal collection and output control enclosure 54 through DOL Data Output Line and shows in real time.This kind mode is simple to operate clear, is applicable to the demand that qualitative judgement is only arranged; A kind of working method is that motion control and signals collecting are carried out simultaneously, can defective accurately be located, and quantitative test is carried out in damage.This kind mode drives card 212 control servomotors 1 by gun barrel defectoscope software systems 211 through motion control, and the electronic slide unit 2 of servomotor 1 control, electronic slide unit 2 drive the outer device 114 of visiting and move according to the stage kinematic parameter of setting with interior spy device 115; Software systems 211 control servomotors 214; Servomotor 214 control gun barrel wheelworks 215; Gun barrel wheelwork 215 drives gun barrel and rotates according to the rotating speed of setting; Software systems 211 control signal capture cards 213; Data acquisition card 213 control magnetic signal collections and output control enclosure 54, the outer spy probe of visiting outward on the device 114 17 is realized the fault localization to gun barrel with the interior spy probe 44 on the interior spy device 115 under magnetic signal collection and 54 controls of output control enclosure, the signal that detects is transferred to software systems 211 via magnetic signal collection and output control enclosure 54 through DOL Data Output Line and shows in real time.This working method need have main frame to support data acquisition card, motion control card, flaw detection software, operating system, and display system software for display working interface need be arranged.This fault detection system both can carry out outer the spy to gun barrel, also can carry out interior spy to gun barrel.The outer device of visiting is applicable to exposed gun barrel fault localization, and interior spy device is applicable to exposed gun barrel fault localization and is assemblied in the gun barrel fault localization in the gun.For strengthening the Effect on Detecting of damage; Adopted magnetizing assembly 118 in the design, this magnetizing assembly 118 adopts the Helmholtz coils mode, logical certain electric current; Produce the space uniform magnetic field in the Helmholtz coils; The intensity in this magnetic field is regulated by the adjustable voltage power supply, adopts accumulator to supply power for this power supply, influences the detection of magnetic signal to eliminate the ripple that causes owing to the power supply instability.It is very faint that the design of magnetizing coil mainly solves the damage magnetic signal of gun barrel to be measured, the problem that is difficult to survey.Can improve the damage magnetic signal of gun barrel to be measured through magnetizing coil, so that survey.The inside and outside device of visiting can be realized straight line, spiral, circumferentially detection to gun barrel to be measured.Inside and outside visit device can in the length of the 1m left and right sides, the gun barrel of diameter in 50mm survey.
As shown in Figure 3, the single unit system structure of a kind of gun barrel nondestructive examination system is formed synoptic diagram.This device is by servomotor 1; Electronic slide unit 2; Handle knob 3; Tailstock spindle 4; Socket head cap screw 5; Tailstock body 6; Spring 7; Axle is with collar 8; The hole is with collar 9; Bearing with retaining shield 10; Axle is with collar 11; Top 12; Handle 13; Screw rod 14; Coil 15; Probe holder 16; Probe 17; Screw 18; Pin 19; Lower guideway 20; Pressing plate 21; Slide plate 22; Hex screw 23; Support plate 24; Slide block 25; Vertical slide rail 26; Main shaft 27; Bearing seat 28; Screw 29; Shaft coupling 30; Connect bent plate 31; Screw 32; Screw 33; Slide plate 34; Column 35; Jackscrew 36; Connect right angle 37; Web joint 41; Tailstock substrate 42; Inserting tube 43; Interior probe 44; Bearing 45; Synchronizing wheel 46; Be with 47 synchronously; Optical axis support 48; Screw 49; Electric machine support 50; Motor 51; Motor control box 52; Sensor screw 53; Signals collecting and output control enclosure 54; Aviation plug 55; Shielding line 56 is formed.
As shown in Figure 4, the outer spy apparatus structure synoptic diagram of a kind of gun barrel nondestructive examination system.This device is made up of handle 13, screw rod 14, probe holder 16, probe 17, screw 18, pin 19, lower guideway 20, pressing plate 21, slide plate 22, hex screw 23.Handle 13 links to each other through pin 19 with screw rod 14; Screw 18 is fastening with pressing plate 21 and lower guideway 20, and hex screw 23 is fixed on lower guideway 20 on the probe holder 16, and two screws 18 will be popped one's head in and 17 are fixed on the slide plate 22; Screw rod 14 links to each other with the screw of slide plate 22 through the unthreaded hole of lower guideway 20; Can in the chute of lower guideway 20, move by turn slide plate 22 drive probes 17 through rotary handle 13, thereby change the radial position of popping one's head in, adapt to the gun barrel detection of different bores.
As shown in Figure 5, the interior spy apparatus structure synoptic diagram of a kind of gun barrel nondestructive examination system.This device by interior probe 44, inserting tube 43, bearing 45, optical axis support 48, synchronizing wheel 46, be with 47 synchronously, motor 51, electric machine support 50, motor control box 52, collecting sensor signal and output control enclosure 54, support plate 24, screw 53, screw 49, aviation plug 55, shielding line 56 form.Optical axis support 48, electric machine support 50, collecting sensor signal and output control enclosure 54, motor control box 52 are fixed on the support plate 24 by screw 53,49.In interior probe 44 terminal insertion inserting tubes 43 end slots, wringing fit.Shielding line 56 is walked from inserting tube 43, links to each other with aviation plug 55.Inserting tube 43 afterbodys are enclosed within the bearing 45, and two bearings 45 is fixed on the optical axis support 48 separately.51 motions of motor control box 52 control motors; Motor 51 motions drive the synchronizing wheel 461 that is fixed on the motor shaft and rotate; This rotation drives the synchronizing wheel 46 that is fixed on the inserting tube 43 through synchronizing wheel band 47 and rotates, and synchronizing wheel 46 drives inserting tube 43 and rotates, thereby realizes the circumferential detection of 44 pairs of gun barrels of probe.Motor 51 is fixed in the electric machine support 50.The circumferential detection of probe 44 and positive and negative rotation are by motor control box 52 switches and the control of speed governing button.Support plate 24 is fixed on the electronic slide unit 2 by screw 56, the axial detection of 44 pairs of gun barrels of mobile realization probe of electronic slide unit 2.
As shown in Figure 6, the gun barrel of a kind of gun barrel nondestructive examination system is visited left and right sides supporting structure synoptic diagram outward.Left socle 117 by handle knob 3, tailstock spindle 4, tailstock body 6, spring 7, axle form with collar 11, top 12, slide plate 34, column 35, tailstock substrate 42, connection right angle 37, jackscrew 36, web joint 41, socket head cap screw 5, screw 33 with collar 9, bearing with retaining shield 10, axle with collar 8, hole, right support 119 is made up of connection bent plate 31, shaft coupling 30, bearing seat 28, main shaft 27, servomotor 1, column 35, slide plate 34, connection right angle 37, jackscrew 36, hexagonal (hexagon)nut, screw 29, screw 32, screw 33.Column 351 is fixed on vertical slide rail 26 by screw 33, and loosening screw 33 can be adjusted left and right pillar 35 and vertically slide on the slide rail 26, confirms the position of left and right pillar 35 flexibly according to the requirement of the length of surveying gun barrel and detecting location.Left and right pillar 35 is fixed by connecting right angle 37.Servomotor 1 is fixed on the connection bent plate 31 of right support 119 by screw 32.By handle knob 3, tailstock spindle 3, tailstock body 6, spring 7, axle with collar 8, hole with collar 9, bearing with retaining shield 10, spool form the flexible adjustment device with collar 11, top 12.The installation and removal gun barrel is accomplished by the flexible adjustment device of gun barrel left socle 117 is auxiliary.Wheelwork 215 is made up of connection bent plate 31, shaft coupling 30, bearing seat 28, main shaft 27, servomotor 1.The rotation of gun barrel is driven by wheelwork 215 and realizes.For adapting to the gun barrel of different bores, top 12 employing taperings are 60 degree, and diameter is the cone of 20mm.
As shown in Figure 7, a kind of interior probe circuit fundamental diagram.This circuit is made up of five parts: amorphous wire probe 612, active oscillating circuit 611, signal amplification circuit 613, current rectifying and wave filtering circuit 614, feedback circuit 615.Active oscillating device circuit 611 produces similar triangle field wave; Amorphous wire probe 612 work under exciting circuit, to the induction of gun barrel damage carrying out magnetic signal, respective impedance changes; Signal amplification circuit 613 amplifies the voltage change signal that the amorphous wire impedance variations causes; The voltage signal that current rectifying and wave filtering circuit 614 will pass through amplification carries out rectifying and wave-filtering, removes undesired signal, keeps useful signal; Feedback circuit 615 effects have 3 points: the corresponding relation of at first improving output voltage and induced field; Improve output frequency characteristic then; Be to eliminate hysteresis again.Through this circuit, can realize induction to the Weak magentic-field signal, its magnetic field order of magnitude can reach 1nT.
As shown in Figure 8, a kind of outer probe circuit fundamental diagram.This circuit is made up of five parts: Magnetic Sensor 711, pre-amplification circuit 713, second amplifying circuit 714, reset circuit 712, biasing circuit 715.Magnetic Sensor 711 adopt resolution in 27 microgasusses, sensitivity at 3mv/v/OG; Pre-amplification circuit 714 carries out first order amplification with little field signal of Magnetic Sensor 711 inductions, and enlargement factor is at 20 times; Second amplifying circuit 714 further amplifies 10 times with signal; Biasing circuit 715 will be exported 1/2 place that signal is biased in supply power, guarantee the full width of cloth of output signal; Reset circuit 712 solves the disturbing magnetic field signal makes magnetoresistive transducer saturated, and the problem of cisco unity malfunction can make recovery magnetoresistive transducer normal operating conditions through this circuit.
As shown in Figure 9, a kind of magnetic flaw detection software synoptic diagram.This software 814 is made up of five parts: parameter input module 811, magnetic signal collection and display module 812, sensor positional feedback information module 813, detectable signal file storage and playback module 815, the magnetic number of making inquiries about damage location and quantitative test module 816.The intact 811 one-tenth initial state information 817 of parameter input module, gun barrel information to be measured 818, motion control information be provided with 819.Initial state information 817 refers to that gun barrel to be measured detects null position, electronic slide unit motion reference position.Gun barrel information 818 to be measured refers to gun barrel title to be measured, gun barrel diameter to be measured and barrel length to be measured.Motion control information 819 is divided into three kinds of situation and is provided with.A kind of for interlock situation controlled variable, a kind of is rectilinear motion situation controlled variable, a kind ofly is the situation controlled variable that rotatablely moves.The interlock situation refers to the situation that gun barrel rotation to be measured and magnetic probe rectilinear motion carry out simultaneously.The rectilinear motion situation refers to gun barrel transfixion to be measured, the straight-line situation of magnetic probe.The situation of rotatablely moving refers to gun barrel rotation to be measured, the situation that probe stationary is motionless.Controlled variable under the interlock situation mainly contains three types of parameters to be needed to be provided with: one type is the magnetic probe displacement of stage n for the gun barrel rotating cycle of stage n, one type of gun barrel for stage n rotate rotating speed, one type.The gun barrel rotating cycle refers to that the gun barrel that moves when finishing from zero point to this stage rotates the absolute displacement value, and unit is number of turns R.The magnetic probe displacement refers to that unit is a millimeter mm since the slide unit absolute displacement value of slide unit at zero point till when motion finishes in stage to this.Gun barrel rotation rotating speed refers to the gun barrel rotational speed, and unit is that per second changes RPS.Can be divided into one or two or three section as required controls.Controlled variable under the rectilinear motion situation mainly contains two types of parameters to be needed to be provided with: one type is the displacement of magnetic probe rectilinear motion; One type is the magnetic probe point-to-point speed.Slide unit absolute displacement value when the displacement of magnetic probe rectilinear motion refers to that motion finishes in stage from zero point to this, unit is a millimeter mm.The magnetic probe point-to-point speed refers to the slide unit speed of feed, and unit is per second millimeter mm/s.Controlled variable under the situation that rotatablely moves mainly contains two types of parameters to be needed to be provided with: one type is that gun barrel rotating cycle to be measured refers to that the gun barrel that moves when finishing from zero point to this stage rotates the absolute displacement value, and unit is number of turns R.One type is that gun barrel rotation rotating speed to be measured refers to the gun barrel rotational speed, and unit is that per second changes RPS.Magnetic signal collection and display module 812 have two kinds of demonstrations: a kind ofly show simultaneously at same interface for the number of making inquiries about of a plurality of magnetic, a kind ofly show separately in separate interface for the number of making inquiries about of a plurality of magnetic that same interface shows simultaneously and helps magnetic and visit array effect analysis-by-synthesis and comparison; The independent displaying interface helps the result of detection on a certain road of clear analysis.Here maximum 4 road magnetic number of making inquiries about display interfaces have been designed.Sensor positional feedback information module 813 is realized the dynamic demonstration of the axial location of corresponding gun barrel to be measured under the real-time follow-up magnetic probe rectilinear motion.The file storage that detectable signal file storage and playback module 815 realize based on the waveform of the magnetic number of making inquiries about, and can read at any time and playback, so that analyze.Realize based on the magnetic number of making inquiries about damage location and quantitative test with quantitative test part 816 the magnetic number of making inquiries about damage location: the sequence number of defective, the position of defective, defective are apart from the width of table position, defective, the length of defective, the degree of depth of defective.Can above-mentioned information be printed.
Claims (5)
1. gun barrel nondestructive examination system; This fault detection system by display system, main frame, PLC kinetic control system, visit device, interior spy device, Mobile Slide, gun barrel left socle, magnetizing assembly, gun barrel right support outward and form, it is characterized in that: the working interface that described display system is accomplished magnetic flaw detection software shows; The operation of described main frame supporting movement control card, data acquisition card, software systems, operating system; Described PLC kinetic control system is accomplished the setting to the motion control parameter of servomotor through the touch screen mode, thereby realizes the mobile control of electronic slide unit and the rotation control of gun barrel; The described outer device of visiting is made up of handle, screw rod, probe holder, outer probe, lower guideway, pressing plate, slide plate; Can in the chute of lower guideway, move by turn slide plate drive probe through rotary handle; Thereby change the radial position of probe, the gun barrel that adapts to different bores is surveyed; Visit device in described and be made up of interior probe, inserting tube, bearing, optical axis support, synchronizing wheel, synchronous band, motor, electric machine support, motor control box, collecting sensor signal and output control enclosure, support plate, interior probe is terminal to insert in the inserting tube end slot wringing fit; Probe signal and power lead are walked from inserting tube; Link to each other with aviation plug, the inserting tube afterbody is enclosed within bearing, and two bearings is fixed on the optical axis support separately; Motor control box control motor movement; Motor movement drives the synchronizing wheel that is fixed on the motor shaft and rotates, and this rotation drives the synchronizing wheel that is fixed on the inserting tube through the synchronizing wheel band and rotates, and synchronizing wheel drives inserting tube and rotates; Thereby realize the circumferential detection of probe to gun barrel; The circumferential detection of probe and positive and negative rotation are by motor control box switch and the control of speed governing button, and support plate is fixed on the electronic slide unit, and the mobile realization probe of electronic slide unit is to the axial detection of gun barrel; Described Mobile Slide is accomplished by electronic slide unit, can realize that under the driving of servomotor straight line moves; Described gun barrel left socle by handle knob, tailstock spindle, tailstock body, spring, axle with collar, hole with collar, bearing with retaining shield, spool form with collar, top, slide plate, column, tailstock substrate, connection right angle, jackscrew, web joint; Right support is made up of connection bent plate, shaft coupling, bearing seat, main shaft, servomotor, column, slide plate, connection right angle, jackscrew; Column by screw retention on vertical slide rail; Loosening screw; Can adjust left and right pillar and vertically slide on the slide rail, confirm the position of left and right pillar flexibly according to the requirement of the length of surveying gun barrel and detecting location, left and right pillar is fixed by connecting the right angle; Servomotor by screw retention on the connection bent plate of right support; By handle knob, tailstock spindle, tailstock body, spring, axle with collar, hole with collar, bearing with retaining shield, axle with collar, the top flexible adjustment device of forming, the installation and removal gun barrel is assisted completion by the flexible adjustment device of gun barrel left socle, wheelwork is made up of connection bent plate, shaft coupling, bearing seat, main shaft, servomotor; The rotation of gun barrel is driven by wheelwork and realizes; For adapting to the gun barrel of different bores, top employing tapering is 60 degree, and diameter is the cone of 20mm; Described magnetizing assembly adopts the Helmholtz coils mode; Logical certain electric current produces the space uniform magnetic field in the Helmholtz coils, the intensity in this magnetic field is regulated by the adjustable voltage power supply; Adopt accumulator to supply power for this power supply; To eliminate because the ripple that the power supply instability causes influences the detection of magnetic signal, it is very faint that the design of magnetizing coil mainly solves the damage magnetic signal of gun barrel to be measured, the problem that is difficult to survey; Can improve the damage magnetic signal of gun barrel to be measured through magnetizing coil, so that survey.
2. gun barrel nondestructive examination according to claim 1 system is characterized in that: visit outward in the coil former that device is fixed on magnetizing assembly, gun barrel passes from the magnetizing coil frame; Consider the miniaturization of mechanical hook-up simultaneously; Magnetizing coil frame internal diameter is designed to 50mm, and the moving direction that probe is visited in the device outside is the coil former internal diameter direction, and purpose is to strengthen Effect on Detecting; Visit outside in the device course of work; Magnetizing coil work, the magnetization of the gun barrel to be measured of the magnetizing coil intensifier coil section of comprising, probe more advantageously detects the faint magnetic signal of damage of to be measured section gun barrel like this.
3. gun barrel nondestructive examination according to claim 1 system; It is characterized in that: visit device outward and be designed to circumferential array version, circumferential three outer probes of visiting evenly distribute; Three probes can carry out work according to the detection needs, realize the comprehensive detection to gun barrel.
4. gun barrel nondestructive examination according to claim 1 system; It is characterized in that: probe is made up of five parts in described: amorphous wire probe, exciting circuit, signal amplification circuit, current rectifying and wave filtering circuit, feedback circuit; Exciting circuit adopts the active oscillating device, produces similar triangle field wave; The work under exciting circuit of amorphous wire probe, to the induction of gun barrel damage carrying out magnetic signal, respective impedance changes; Signal amplification circuit amplifies the voltage change signal that the amorphous wire impedance variations causes; The voltage signal that current rectifying and wave filtering circuit will pass through amplification carries out rectifying and wave-filtering, removes undesired signal, keeps useful signal; The feedback circuit effect has 3 points: the corresponding relation of at first improving output voltage and induced field; Improve output frequency characteristic then; Be to eliminate hysteresis again, through this circuit, can realize the induction to the Weak magentic-field signal, its magnetic field order of magnitude can reach 1nT.
5. gun barrel nondestructive examination according to claim 1 system; It is characterized in that: the operating circuit of described outer probe is made up of five parts: Magnetic Sensor, pre-amplification circuit, second amplifying circuit, reset circuit, biasing circuit, and Magnetic Sensor employing resolution is at 27 microgasusses, the sensitivity magnetoresistive transducer at 3mv/v/OG; Pre-amplification circuit carries out first order amplification with little field signal of magnetoresistive transducer induction, and enlargement factor is at 20 times; Second amplifying circuit further amplifies 10 times with signal; Biasing circuit will be exported 1/2 place that signal is biased in supply power, guarantee the full width of cloth of output signal; Reset circuit solves the disturbing magnetic field signal makes magnetoresistive transducer saturated, and the problem of cisco unity malfunction can make recovery magnetoresistive transducer normal operating conditions through this circuit.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205116627U CN202453324U (en) | 2011-12-09 | 2011-12-09 | Nondestructive testing system for gun barrel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205116627U CN202453324U (en) | 2011-12-09 | 2011-12-09 | Nondestructive testing system for gun barrel |
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| CN202453324U true CN202453324U (en) | 2012-09-26 |
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| CN2011205116627U Expired - Fee Related CN202453324U (en) | 2011-12-09 | 2011-12-09 | Nondestructive testing system for gun barrel |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103163212A (en) * | 2011-12-09 | 2013-06-19 | 浩华科技实业有限公司 | Nondestructive inspection system for gun barrel |
| CN105928450A (en) * | 2016-05-20 | 2016-09-07 | 浙江大学 | Automatic detection device of position of steel pipe in cable splicing sleeve |
| CN105953756A (en) * | 2016-05-20 | 2016-09-21 | 浙江大学 | Position detector for steel pipe in cable splicing sleeve based on synchronous belt driving |
| CN106019385A (en) * | 2016-05-20 | 2016-10-12 | 浙江大学 | Automatic detector for position of steel tube in cable splicing sleeve |
| CN110031542A (en) * | 2019-04-26 | 2019-07-19 | 射阳县智能探伤设备有限公司 | A kind of magnaflux convenient for adjusting |
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2011
- 2011-12-09 CN CN2011205116627U patent/CN202453324U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103163212A (en) * | 2011-12-09 | 2013-06-19 | 浩华科技实业有限公司 | Nondestructive inspection system for gun barrel |
| CN105928450A (en) * | 2016-05-20 | 2016-09-07 | 浙江大学 | Automatic detection device of position of steel pipe in cable splicing sleeve |
| CN105953756A (en) * | 2016-05-20 | 2016-09-21 | 浙江大学 | Position detector for steel pipe in cable splicing sleeve based on synchronous belt driving |
| CN106019385A (en) * | 2016-05-20 | 2016-10-12 | 浙江大学 | Automatic detector for position of steel tube in cable splicing sleeve |
| CN105928450B (en) * | 2016-05-20 | 2018-07-27 | 浙江大学 | Steel pipe Position automatic detection device in a kind of cable splice pipe |
| CN105953756B (en) * | 2016-05-20 | 2019-02-05 | 浙江大学 | Steel pipe positioning detecting device in cable splice pipe based on synchronous belt driving |
| CN106019385B (en) * | 2016-05-20 | 2019-03-29 | 浙江大学 | Steel pipe Position automatic detection device in cable splice pipe |
| CN110031542A (en) * | 2019-04-26 | 2019-07-19 | 射阳县智能探伤设备有限公司 | A kind of magnaflux convenient for adjusting |
| CN110031542B (en) * | 2019-04-26 | 2023-02-28 | 射阳县智能探伤设备有限公司 | Magnetic particle flaw detector convenient to adjust |
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Granted publication date: 20120926 Termination date: 20131209 |