CN101975819A - Automatic eddy current/ magnetic memory device for detecting defect on surface layer of inner wall of old cylinder barrel - Google Patents
Automatic eddy current/ magnetic memory device for detecting defect on surface layer of inner wall of old cylinder barrel Download PDFInfo
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- CN101975819A CN101975819A CN201010272384.4A CN201010272384A CN101975819A CN 101975819 A CN101975819 A CN 101975819A CN 201010272384 A CN201010272384 A CN 201010272384A CN 101975819 A CN101975819 A CN 101975819A
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Abstract
The invention relates to an automatic eddy current/ magnetic memory device for detecting defects on the surface layer of the inner wall of an old cylinder barrel, which aims at cracks, pitting and stress concentration on the surface layer of the inner wall of the old cylinder barrel. The device consists of a conveyor belt, a bracket, a control cabinet, a detection frame and a probe block, wherein the detection frame comprises an upper detection frame and a lower detection frame, the probe block is connected below the detection frame, multiple groups of eddy current/magnetic memory pen probes are evenly distributed on the peripheral direction of the probe block, the probe block can move up and down and rotate in a cylinder barrel through the motor of the detection frame, a guide screw, a slide rail and a synchronous belt to finish eddy current detection on crack and pitting flaws on the surface layer of the inner wall of the cylinder barrel and magnetic memory detection on stress concentration level on the inner wall of the cylinder barrel. The invention has the advantages of higher detection accuracy and reliability, high detection efficiency and simple use, and has not high requirement on operators, thus being widely used for on-line detection of the old cylinder barrel.
Description
Technical field:
The present invention relates to a kind of robotization eddy current of concentrating at the old cylinder body inner wall of cylinder of engine top layer crackle, spot corrosion defective and stress/magnetic memory comprehensive detection device.
Background technology:
Enter 21 century, in order to alleviate the contradiction between limited resources and the unlimited waste, reduce environmental pollution, the Chinese government has made the great strategic decision of " develop a circular economy, build a conservation-minded society ".Yet with regard to present automobile industry, there is a large amount of motor vehicle liquidations every year in China, and the retired auto parts of generation reach millions of tons, have caused huge waste.Therefore, from the angle of sustainable development, the recycling of development automobile waste and old part and again manufacturing industry be significant.
Engine cylinder-body is one of vitals of engine, under the effect that colds and heat succeed each other, on inboard wall of cylinder block surface and nearly surface be easy to generate crackle, spot corrosion and stress and concentrate.Before making again,, then can't guarantee to make again the security performance of rear-bank rotor housing in next life cycle if not to the surface and the near surface flaw of waste and old cylinder body with stress is concentrated detects.Yet, also do not have at present the effective automatic detection system of a cover to concentrate and detect the defective of waste and old cylinder body and stress.Traditional detection method is exactly: under the irradiation of fluorescence, utilize the visual inspection inboard wall of cylinder block whether to have defective, then, utilize osmosis further to judge defects property again; Or utilize water inspection method, and whole cylinder body is put into the water logging groove, in the water channel of cylinder body, charge into gas, if in the water logging groove, produce bubble, then illustrate at inboard wall of cylinder block to produce through-wall crack.Above-mentioned two kinds of detection methods are easy to omission, and accuracy is relatively poor, and can only detect the inboard wall of cylinder block surface imperfection, and is then powerless near surface flaw, and can not judge the stress concentration degree of inboard wall of cylinder block, and testing result is also directly perceived inadequately.Yet, eddy detection technology is one of five big conventional Dynamic Non-Destruction Measurements, technology is comparatively ripe, be fit to detect the crackle and the spot corrosion defective on metal surface and nearly surface, metal magnetic memory detection technology is as a kind of emerging Dynamic Non-Destruction Measurement, can judge the stress concentration degree of ferromagnetic component, carry out early diagnosis, these two kinds of detection techniques have very big application prospect in the detection of cylinder body defective, in order to satisfy online detection needs, research and development are significant at the robotization eddy current/magnetic memory comprehensive detection device of old cylinder body inner wall of cylinder cosmetic bug before making again.
Summary of the invention:
Deficiency at the prior art existence, the object of the present invention is to provide and a kind ofly can concentrate the eddy current/magnetic memory comprehensive detection device that carries out robotization and detect engine old cylinder body inner wall of cylinder cosmetic bug and stress, to be used for satisfying the demand that engine is made production again, improve the accuracy and the detection efficiency that detect.
The robotization eddy current that engine provided by the present invention old cylinder body inner wall of cylinder cosmetic bug and stress are concentrated/magnetic memory comprehensive detection device is made up of travelling belt, support, testing stand, probe piece and switch board, the waste and old cylinder body that travelling belt is used for transmitting after disassembling, cleaning arrives position to be checked, testing stand is made up of upper and lower two testing stands, under testing stand, be useful on and detect inboard wall of cylinder block defective and the concentrated probe piece of stress, on probe piece circumferencial direction, be evenly distributed 2～8 groups of eddy current/magnetic memory pen probe.By elevating mechanism on the testing stand and rotating mechanism, the probe piece can move up and down in cylinder barrel and rotatablely move, limit the distance and the anglec of rotation that the probe piece moves up and down by stop means, detect in order to finish to the EDDY CURRENT of inboard wall of cylinder block surface and nearly surface crack, spot corrosion defective with to the metal magnetic memory of inboard wall of cylinder block stress concentration degree.Eddy detecting instrument and magnetic memory detector device all are integrated in the switch board, display screen and guidance panel are arranged on the switch board, display screen is in order to show the duty of eddy current and magnetic memory testing result and pick-up unit each several part, and guidance panel is finished whole robotization testing process in order to the motion state of control detection frame, travelling belt and probe piece.
A kind of robotization eddy current/magnetic memory detection device at old cylinder body inner wall of cylinder cosmetic bug, it comprises travelling belt, support, switch board, testing stand, the first probe piece and the second probe piece, old cylinder body to be checked is placed on the travelling belt, the travelling belt horizontal positioned, transmission direction is vertical with support, the belt-driven motor is connected a side of travelling belt, support is in the top of cylinder body, switch board stands on the cylinder body opposite side, and link to each other with support, eddy current/magnetic memory comprehensive detecting Instrument is integrated in the switch board, and display screen and control panel are arranged on switch board; Testing stand is between support and cylinder body, and be connected on the slideway of support, the testing stand horizontal drive motor that the driving testing stand moves horizontally is positioned at a side of support, testing stand is divided into testing stand and following testing stand two parts, last testing stand be positioned at following testing stand directly over, last testing stand is connected with the slideway of support by first link with following testing stand, web joint is positioned on the following testing stand, and be connected down on the testing stand by first slide block, the bottom of first link is fixed on the web joint, limiting first stop means that first link moves horizontally scope is installed on the slide block, last testing stand links to each other with first link by second slide block, second stop means that testing stand moves up and down scope in the qualification is installed on second slide block, the 3rd slide block and Four-slider are connected on the slideway of testing stand, second link and the 3rd link all are vertical placements, the top of second link and the 3rd link links to each other with Four-slider with the 3rd slide block respectively, the bottom of second link and the 3rd link links to each other with the second probe piece with the first probe piece respectively, shaft coupling is positioned at a side of testing stand, and by first synchronously band link to each other with Four-slider with the 3rd slide block, the 3rd stop means that limits the 3rd slide block and Four-slider relative position is installed on the 3rd slide block, the relative distance of the first probe piece and the second probe piece equals the centre distance of adjacent cylinder barrel, the lifting drive motor is positioned at first link top, leading screw is vertically placed, the upper end of leading screw links to each other with the lifting drive motor, the lower end of leading screw links to each other with web joint, leading screw passes the center of link, last link links to each other with leading screw by screw, link horizontal drive motor is positioned at an end of testing stand down, link horizontal drive motor is with synchronously by second and is linked to each other last testing stand with first link, first link, the lifting drive motor, leading screw, second slide block and second stop means have constituted the elevating mechanism of testing stand; First base plate and second base plate are positioned on the following testing stand, first base plate links to each other with following testing stand with the 6th slide block by the 5th slide block respectively with second base plate, first rotary drive motor is arranged on first base plate, first rotation is band synchronously, first bull wheel, first sensor, first code-disc, first code reader and first printed circuit board (PCB), the first center that is positioned at first base plate of taking turns, and by first rotation synchronously band link to each other with first rotary drive motor, first code-disc and first code reader are positioned at directly over first bull wheel, first printed circuit board (PCB) is between first code reader and first bull wheel, first sensor links to each other with first code reader with first printed circuit board (PCB) by lead, second link passes first base plate, the center of first bull wheel and first code-disc, first rotary drive motor, first rotation is band synchronously, first bull wheel, second link, first sensor, first code-disc, first code reader and first printed circuit board (PCB) have constituted the rotating mechanism of the first probe piece, and the rotating mechanism of the first probe piece is identical with the rotating mechanism of the second probe piece.Its feature also is, is being evenly distributed 2～8 eddy current/magnetic memory pen probe on the first probe piece circumferencial direction, is equipped with the first probe ring compressing tablet at first centre bit of popping one's head in piece, and the first probe piece is identical with the structure of the second probe piece.
The present invention adopts the mode of mechanical automation that old cylinder body inner wall of cylinder cosmetic bug is carried out eddy current/magnetic memory comprehensive detection, have higher detection accuracy and reliability, the detection efficiency height, and use simple, less demanding to the operator, can be widely used in the online detection of old engine cylinder-body.
Description of drawings
Fig. 1 is the robotization eddy current/magnetic memory detection device general illustration of old cylinder body inner wall of cylinder cosmetic bug;
The front view of Fig. 2 testing agency;
The side view of Fig. 3 testing agency;
Fig. 4 pick-up unit elevating mechanism front view;
Fig. 5 pick-up unit elevating mechanism side view;
The rotating mechanism front view of Fig. 6 first probe piece 14;
The rotating mechanism vertical view of Fig. 7 first probe piece 14;
Fig. 8 first probe piece 14 vertical views.
Describe the concrete structure of the robotization eddy current/magnetic memory detection device of foundation old cylinder body inner wall of cylinder cosmetic bug proposed by the invention in detail below in conjunction with accompanying drawing.
Embodiment
The pick-up unit of present embodiment is used for online automatic detection four cylinders or six-in-line engine, its general structure as shown in Figure 1, it comprises travelling belt, support, switch board, testing stand, the first probe piece and the second probe piece, old cylinder body to be checked is placed on the travelling belt, the belt-driven motor is connected a side of travelling belt, support is in the top of cylinder body, switch board stands on the cylinder body opposite side, eddy current/magnetic memory comprehensive detecting Instrument is integrated in the switch board, display screen and control panel are arranged on switch board, display screen is in order to show the duty of eddy current and magnetic memory testing result and pick-up unit each several part, and guidance panel is in order to the control detection frame, travelling belt, the motion state of the first probe piece and the second probe piece.Testing stand and is connected on the slideway of support between support and cylinder body, and testing stand horizontal drive motor is positioned at support one side, moves horizontally on support in order to drive testing stand.
The structural drawing of testing agency as shown in Figures 2 and 3, testing stand is divided into testing stand and following testing stand two parts, last testing stand is connected with the slideway of support by first link with following testing stand, first link is fixed on the web joint, web joint is connected down on the testing stand by first slide block, first stop means is installed on the slide block, last testing stand links to each other with first link by second slide block, second stop means is installed on second slide block, the first probe piece and the second probe piece are separately fixed at an end of second link and the 3rd link, the first probe piece and the second probe piece are positioned at the cylinder barrel to be checked about 50mm in top, the other end of second link and the 3rd link links to each other with Four-slider with the 3rd slide block respectively, the 3rd slide block and Four-slider are connected on the slideway of testing stand, shaft coupling is positioned at a side of testing stand, and by first synchronously band link to each other with Four-slider with the 3rd slide block, the 3rd stop means is installed on the 3rd slide block, makes the first probe piece and second relative distance of popping one's head in piece equal the centre distance of adjacent cylinder barrel.Link horizontal drive motor is positioned at an end of testing stand down, the second synchronous band links to each other with first link with link horizontal drive motor, the lifting drive motor is positioned at first link top, and link to each other with the upper end of leading screw, the lower end of leading screw links to each other with web joint, leading screw passes the center of link, last link links to each other with leading screw by screw, such structure can drive upward by the lifting drive motor, and link moves up and down, drive simultaneously first the probe piece and second the probe piece in cylinder barrel, move up and down, last testing stand, first link, the lifting drive motor, leading screw, second slide block and second stop means have constituted the elevating mechanism of testing stand, see Fig. 4 and Fig. 5.
First base plate and second base plate are positioned on the following testing stand, first base plate links to each other with following testing stand with the 6th slide block by the 5th slide block respectively with second base plate, first rotary drive motor is arranged on first base plate, first rotation is band synchronously, first bull wheel, first sensor, first code-disc, first code reader and first printed circuit board (PCB), the first center that is positioned at first base plate of taking turns, and by first rotation synchronously band link to each other with first rotary drive motor, first code-disc and first code reader are positioned at directly over first bull wheel, first printed circuit board (PCB) is between first code reader and first bull wheel, first sensor links to each other with first code reader with first printed circuit board (PCB) by lead, second link passes first base plate, the center of first bull wheel and first code-disc, first rotary drive motor, first rotation is band synchronously, first bull wheel, second link, first sensor, first code-disc, first code reader and first printed circuit board (PCB) have constituted the rotating mechanism of the first probe piece, as shown in Figure 6 and Figure 7, first rotary drive motor can rotate synchronously by first rotation band driving synchronously, first bull wheel, first bull wheel can drive the first probe piece and rotate synchronously, pass through first sensor, first code-disc, first code reader and first printed circuit board (PCB) limit the anglec of rotation of the first probe piece, making the anglec of rotation of the first probe piece is 6 °, and the rotating mechanism of the second probe piece is identical with the rotating mechanism of the first probe piece.The rotating mechanism of the second probe piece is by second rotary drive motor, second rotation is band synchronously, second bull wheel, the 3rd link, second sensor, second code-disc, second code reader and second printed circuit board (PCB) are formed, second rotary drive motor is arranged on second base plate, second rotation is band synchronously, second bull wheel, second sensor, second code-disc, second code reader and second printed circuit board (PCB), the second largest center that is positioned at second base plate of taking turns, and by second rotation synchronously band link to each other with second rotary drive motor, second code-disc and second code reader are positioned at directly over second bull wheel, second printed circuit board (PCB) is between second code reader and second bull wheel, second sensor links to each other with second code reader with second printed circuit board (PCB) by lead, the 3rd link passes second base plate, the center of second bull wheel and second code-disc, second rotary drive motor can rotate synchronously by second rotation band driving synchronously, second bull wheel, second bull wheel can drive the second probe piece and rotate synchronously, by second sensor, second code-disc, second code reader and second printed circuit board (PCB) limit the anglec of rotation of the second probe piece, and making the anglec of rotation of the second probe piece is 6 °.
As shown in Figure 8, the first probe piece is being evenly distributed four groups of eddy current/magnetic memory pen probe in a circumferential direction, be respectively first probe, second probe, the 3rd probe and the 4th probe, 90 ° at interval of adjacent probes, the first probe ring compressing tablet is positioned at the center of the first probe piece, for four groups of eddy current/magnetic memory pen probe provides elastic force, and damage probe during the piece that prevents to pop one's head in motion, the diameter of the first probe piece is than the little 2～4mm of cylinder barrel diameter, and the first probe piece is identical with the structure of the second probe piece.The second probe piece is being evenly distributed four groups of eddy current/magnetic memory pen probe in a circumferential direction, be respectively the 5th probe, the 6th probe, the 7th probe and the 8th probe, 90 ° at interval of adjacent probes, the second probe ring compressing tablet is positioned at the center of the second probe piece, for four groups of eddy current/magnetic memory pen probe provides elastic force, damage probe during the piece that prevents to pop one's head in motion, the diameter of the second probe piece is than the little 2～4mm of cylinder barrel diameter.
The course of work that the robotization eddy current of old cylinder body cylinder barrel cosmetic bug/the magnetic memory detects is as follows: at first by travelling belt waste and old cylinder body is transported to position to be checked, move horizontally testing stand by control panel, make detection probe roughly above the cylinder barrel to be checked about 50mm, the interval of regulating two detection probe equals the centre distance of adjacent two cylinder barrels, accurately regulate the testing stand horizontal level again, detection probe is positioned at directly over the cylinder barrel to be checked; Secondly, by the elevating mechanism of pick-up unit, the piece of will popping one's head in moves on in the cylinder barrel to be checked; Then, start eddy current/magnetic memory detector device simultaneously, the elevating mechanism of pick-up unit and rotating mechanism, probe piece elder generation is rectilinear motion from top to bottom, when moving to the cylinder barrel bottom, the probe piece counterclockwise rotates 6 °, and begin rectilinear motion from the bottom up, when moving to the cylinder barrel top, the probe piece continues counterclockwise to rotate 6 °, again rectilinear motion from top to bottom, move and so forth 16 times, can finish the comprehensive scanning to whole inner wall of cylinder, in the scanning process, eddy current/magnetic memory detector device moves always, writing down testing result, like this can two cylinder barrels of disposable detection; After checking out two adjacent cylinder barrels, move on to 50mm place, cylinder body top by the jacking gear piece of will popping one's head in, move horizontally testing stand again, the piece of will popping one's head in is adjusted to other two cylinder barrel to be checked tops, repeat above-mentioned testing process, till all cylinder barrels that check out whole cylinder body, judge by the testing result of record whether whether this waste and old cylinder body exists surface and near surface flaw and stress to concentrate, satisfy and make the demand of producing again; After having detected this waste and old cylinder body, by travelling belt it is seen off, and send other waste and old cylinder body to be checked simultaneously here and proceed to detect, realize the industrialization flow process.
The invention has the advantages that the mode that adopts mechanical automation is to engine old cylinder body inner wall of cylinder cosmetic bug and the concentrated Eddy Current/Magnetic memory comprehensive detection of carrying out of stress, avoided the shortcoming of the easy omission of manual detection, the accuracy and the reliability that detect are higher, testing result is clear and intuitive, have higher detection efficiency, can be widely used in the online detection of old engine cylinder-body.
Claims (2)
1. robotization eddy current/magnetic memory detection device at old cylinder body inner wall of cylinder cosmetic bug, it comprises travelling belt (2), support (4), switch board (6), testing stand (19), the first probe piece (14) and the second probe piece (15), old cylinder body to be checked (1) is placed on the travelling belt (2), travelling belt (2) horizontal positioned, transmission direction is vertical with support (4), belt-driven motor (3) is connected a side of travelling belt, support (4) is in the top of cylinder body (1), switch board (6) stands on the cylinder body opposite side, and link to each other with support (4), eddy current/magnetic memory comprehensive detecting Instrument is integrated in the switch board (6), and display screen (7) and control panel (8) are arranged on switch board (6); Testing stand (19) is between support (4) and cylinder body (1), and be connected on the slideway of support (4), the testing stand horizontal drive motor (5) that driving testing stand (19) moves horizontally is positioned at a side of support (4), testing stand (19) is divided into testing stand (9) and following testing stand (10) two parts, last testing stand (9) be positioned at following testing stand (10) directly over, last testing stand (9) is connected by the slideway of first link (11) with support (4) with following testing stand (10), web joint (34) is positioned on the following testing stand (10), and be connected down on the testing stand (10) by first slide block (21), the bottom of first link (11) is fixed on the web joint (34), limiting first stop means (31) that first link (11) moves horizontally scope is installed on the slide block (21), last testing stand (9) links to each other with first link (11) by second slide block (22), second stop means (32) that testing stand in the qualification (9) moves up and down scope is installed on second slide block (22), the 3rd slide block (23) and Four-slider (24) are connected on the slideway of testing stand (9), second link (16) and the 3rd link (17) all are vertical placements, the top of second link (16) and the 3rd link (17) links to each other with Four-slider (24) with the 3rd slide block (23) respectively, the bottom of second link (16) and the 3rd link (17) links to each other with the second probe piece (15) with the first probe piece (14) respectively, shaft coupling (29) is positioned at a side of testing stand (9), and pass through first and be with (30) to link to each other with Four-slider (24) synchronously with the 3rd slide block (23), the 3rd stop means (33) that limits the 3rd slide block (23) and Four-slider (24) relative position is installed on the 3rd slide block (23), the relative distance of the first probe piece (14) and the second probe piece (15) equals the centre distance of adjacent cylinder barrel, lifting drive motor (13) is positioned at first link (11) top, leading screw (12) is vertically placed, the upper end of leading screw (12) links to each other with lifting drive motor (13), the lower end of leading screw (12) links to each other with web joint (34), leading screw (12) passes the center of link (9), last link (9) links to each other with leading screw (12) by screw, link horizontal drive motor (27) is positioned at an end of testing stand (10) down, link horizontal drive motor (27) is with (28) to link to each other last testing stand (9) with first link (11) by second synchronously, first link (11), lifting drive motor (13), leading screw (12), second slide block (22) and second stop means (32) have constituted the elevating mechanism of testing stand; First base plate (41) and second base plate (42) are positioned on the following testing stand (10), first base plate (41) links to each other with following testing stand (10) with the 6th slide block (26) by the 5th slide block (25) respectively with second base plate (42), first rotary drive motor (18) is arranged on first base plate (41), first rotation is band (35) synchronously, first bull wheel (36), first sensor (37), first code-disc (38), first code reader (39) and first printed circuit board (PCB) (40), first bull wheel (36) is positioned at the center of first base plate (41), and pass through first rotation and be with (35) to link to each other synchronously with first rotary drive motor (18), first code-disc (38) and first code reader (39) are positioned at directly over first bull wheel (36), first printed circuit board (PCB) (40) is positioned between first code reader (39) and first bull wheel (36), first sensor (37) links to each other with first code reader (39) with first printed circuit board (PCB) (40) by lead, second link (16) passes first base plate (41), the center of first bull wheel (36) and first code-disc (38), first rotary drive motor (18), first rotation is band (35) synchronously, first bull wheel (36), second link (16), first sensor (37), first code-disc (38), first code reader (39) and first printed circuit board (PCB) (40) have constituted the rotating mechanism of the first probe piece (14), and the rotating mechanism of the first probe piece (14) is identical with the rotating mechanism of the second probe piece (15).
2. the robotization eddy current/magnetic memory detection device of old cylinder body inner wall of cylinder cosmetic bug according to claim 1, it is characterized in that, on first probe piece (14) circumferencial direction, be evenly distributed 2～8 eddy current/magnetic memory pen probe, centre bit at the first probe piece (14) is equipped with the first probe ring compressing tablet (20), and the first probe piece (14) is identical with the structure of the second probe piece (15).
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010102723844A CN101975819B (en) | 2010-09-03 | 2010-09-03 | Automatic eddy current/ magnetic memory device for detecting defect on surface layer of inner wall of old cylinder barrel |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010102723844A CN101975819B (en) | 2010-09-03 | 2010-09-03 | Automatic eddy current/ magnetic memory device for detecting defect on surface layer of inner wall of old cylinder barrel |
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| CN101975819A true CN101975819A (en) | 2011-02-16 |
| CN101975819B CN101975819B (en) | 2011-12-21 |
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