CN102778506B - Automatic sweeping system for detecting tubing and panel workpiece with different diameters - Google Patents

Automatic sweeping system for detecting tubing and panel workpiece with different diameters Download PDF

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Publication number
CN102778506B
CN102778506B CN201210273739.0A CN201210273739A CN102778506B CN 102778506 B CN102778506 B CN 102778506B CN 201210273739 A CN201210273739 A CN 201210273739A CN 102778506 B CN102778506 B CN 102778506B
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China
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axis
leading screw
tubing
automatic scanning
workpiece
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CN201210273739.0A
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Chinese (zh)
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CN102778506A (en
Inventor
刘呈则
严智
邓景珊
张宝军
袁光华
林明峰
陶泽勇
刘震
赵晓敏
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国核电站运行服务技术有限公司
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Abstract

The invention relates to an automatic sweeping system for detecting tubing and panel workpieces with different diameters. The system comprises a video positioning system, an automatic sweeping device, a control box, a switchboard, an ultrasonic detecting instrument and a PC (Personal Computer), wherein the automatic sweeping device is mainly composed of a panel workpieces support, a tubing detecting mechanism and a three-shaft movement platform; the video positioning system is mainly composed of a CPU (Central Processing Unit) main control board, a video acquiring card, positioning calculation software and a video camera in the automatic sweeping device; and the control box is mainly composed of a CPU main control board, a movement control module, a synchronization board card, an IO(Input/Output) module and a servo amplifier. The system is applicable to automatic ultrasonic detection, the automation level in operation of the system is improved, and thus the system can be used for automatic ultrasonic detection of tubing and panel workpieces of different diameters and also can be used for automation detection of lossless detection of other similar testing pieces.

Description

Automatic scanning system for detection of different-diameter tubing peace plate workpiece

Technical field

The present invention relates to a kind of automatic scanning system, particularly a kind of automatic scanning system for detection of different-diameter tubing peace plate workpiece, also can be applicable to the ultrasonic or EDDY CURRENT to different-diameter tubing peace plate, belongs to nuclear industry field of non destructive testing.

Background technology

The product quality of Ultrasonic NDT in many industrial circles detects, have irreplaceable vital role aspect the inspection of device security performance.At field of non destructive testing, testing staff mostly adopts hand-held probe or scanning frame butt welded seam to carry out conventional Ultrasound detection.Adopt hand-held probe or scanning frame butt welded seam to detect, labour intensity is large, easily produces undetected district and detection efficiency limited, detects the impact that data are subject to many subjective and objective factors, such as operating personnel's experience, detect gimmick etc.In addition, manually detection cannot be carried out record by imaging to ultrasound data, to testing, has brought great inconvenience.

In addition, degree of freedom and the dirigibility of scanning frame end scope of activities, with and in three dimensions the detection order of accuarcy of displacement will directly affect authenticity and the reliability of testing result.This current class mechanical scanning device, as related in patent 94215676.5,97237408.6, scanning arm mostly is the cantilevered in band turnover joint, and the probe of end setting mostly also is vertical type, the limitation of scope of activities is larger, affects final testing result accuracy.

Summary of the invention

The object of the present invention is to provide a kind of automatic scanning system that is applicable to different-diameter tubing peace plate workpiece.This system can be carried out immersed ultrasonic test to the tubing of different-diameter, and pipe diameter changes within the scope of 60mm-300mm, provides tubing to rotatablely move and the axially-movable of popping one's head in, and positions detecting defect.Also can detect the flat panel workpieces of different size, provide X/Y to flat in-plane moving, and position detecting defect.

The present invention is achieved in that it comprises video positioning system, the flat panel workpieces bracket consisting of bracing frame, sheet material workpiece, castor and the tubing testing agency consisting of bracing frame, tubing workpiece, tank, castor and the triaxial movement platform that consists of bracing frame, castor, X-axis leading screw, Y-axis leading screw, Z axis leading screw form automatic scanning device, control box, switch, Ultrasonic Detection instrument, PC computing machine, Ethernet/optical fiber;

The upper end of the bracing frame of the flat panel workpieces bracket in described automatic scanning device is provided with supporting plate, clamping cylinder is installed on described supporting plate, described sheet material workpiece is placed on described supporting plate, on the crossbeam of support frame as described above lower end, be provided with pilot hole, gib block and hasp and hook;

On the lower end floor beam of the bracing frame of the tubing testing agency in described automatic scanning device, be provided with pilot hole, gib block and hasp hook, and described tubing workpiece is placed in described tank, is provided with by main drive shaft in tank, main drive shaft roll wheel assembly, bearing bridge, screw pair, handle, driven shaft, the wheel holding mechanism that driven shaft roll wheel assembly forms, wherein said main drive shaft roll wheel assembly is arranged on described main drive shaft, and described driven shaft roll wheel assembly is arranged on described driven shaft, main drive shaft, driven shaft is erected on described bearing bridge, and the nut of described screw pair is connected with described driven shaft, and the leading screw in screw pair is connected with described handle, at described tank, is outside equipped with by case, reductor, brshless DC motor, rotary transformer, seal, cantilever bearings support, the motor-driven assembly that chain transmission forms, wherein said case is connected on described tank, described reductor, brshless DC motor and described rotary transformer three are coupled to each other successively, and described seal is connected on tank, and described chain gear frame is located on described cantilever bearings support,

On the crossbeam of the bracing frame lower end of the triaxial movement platform in described automatic scanning device, be provided with gathering sill, pilot hole, register pin, hasp spanner, is provided with described X-axis leading screw in the upper end of support frame as described above, Y-axis leading screw, cylinder, Z axis moving slider, Z axis leading screw, Z axis fixed support, video camera, Z axis fixed pedestal, Timing Belt, probe assembly, X-axis crossbeam, wherein said X-axis leading screw is erected on described X-axis crossbeam, described Y-axis leading screw is by described toothed belt transmission, described cylinder is arranged on the bottom of described Z axis moving slider, described video camera is fixed by described Z axis fixed pedestal, Z axis fixed pedestal is fixed on the bottom of described Z axis moving slider, described probe assembly is arranged on the end of described cylinder, described Z axis leading screw is erected on described Z axis fixed support, Z axis leading screw is connected by feed screw nut with Z axis moving slider, described Z axis fixed support is connected by feed screw nut with described X-axis leading screw, and described X-axis crossbeam is connected by feed screw nut with brown Y-axis leading screw,

Described control box is by CPU master control borad, motion-control module, synchronous board, IO module, servoamplifier forms, wherein said CPU master control borad outputs a control signal to described motion-control module, motion-control module output signal drives signal to described servoamplifier in order to output motor, CPU master control borad is connected to described synchronous board, the input end of described IO module is connected to field apparatus, its output terminal is connected with CPU master control borad, described CPU master control borad output terminal in described control box is connected with described switch by described Ethernet/optical fiber, described control box also respectively with described automatic scanning device, described Ultrasonic Detection instrument connects, described automatic scanning device is connected with described Ultrasonic Detection instrument, described switch is connected with described PC computing machine by described Ethernet/optical fiber,

Location Calculation software in the CPU master control borad of described video positioning system in described control box, video frequency collection card, described PC computing machine, the video camera in described triaxial movement platform form, described video frequency collection card is mounted on CPU master control borad, described location Calculation software is mounted in described PC computing machine, and described video camera is mounted in the lower end of the Z axis fixed pedestal in triaxial movement platform.

Described castor is arranged on respectively the lower end of support frame as described above.

Automatic scanning system of the present invention, can realize the tubing to different-diameter, the ultrasound wave robotization testing process of flat panel workpieces.Automatic scanning system of the present invention adopts manual/auto motion switch to control, and when automatic operation is controlled, by servomotor, coordinates rotary transformer to carry out close-loop feedback control, can under rugged surroundings or radiativity environment, realize accurate positioning, stable.Automatic scanning system of the present invention adopts the control mode of Ethernet/optical fiber connection, goes for growing the application scenario of distance process control, as long as the network segment at Access Control case place can carry out the automatic control of scanning process.Automatic scanning system of the present invention can realize the detection to different-diameter tubing by adjusting the spacing of main drive shaft and driven shaft, while is for the height of different tubing or flat panel workpieces, by regulating Z axis motor and proportioning valve, control cylinder pressure, and then control snap-in force.Scanning system of the present invention provides video system simultaneously, by being arranged on the video camera on three-axis platform, can realize the locating information of origin reference location and the defective locations of tested workpiece, even if in the situation that tested workpiece and three-axis platform exist certain angle, also can provide defect location information.This device provides four degree of freedom, flexibility of operation is strong, and different tubing is had to adaptability, can be for realizing the Ultrasonic Detection of robotization, improved the automatization level of system operation, this system can, for the automatic ultrasonic scanning of different-diameter pipes material and flat panel workpieces, also can be used for the robotization scanning of other similar test block lossless detection methods.

Accompanying drawing explanation

Fig. 1 is functional-block diagram of the present invention

Fig. 2 is control box block diagram of the present invention

Fig. 3 is automatic scanning apparatus structure schematic diagram of the present invention

Fig. 4 is the interior wheel holding mechanism structural representation of tubing testing agency water tank in automatic scanning device of the present invention

Fig. 5 is tubing testing agency water box outside motor transmission component structural representation in automatic scanning device of the present invention

Fig. 6 is triaxial movement platform structural representation in automatic scanning device of the present invention

Fig. 7 is video positioning system block diagram of the present invention

Fig. 8 is one embodiment of the invention schematic diagram

Fig. 9 is another embodiment of the present invention schematic diagram

Figure 1- Figure 7: 1 video positioning system 2 automatic scanning device 3 control box 4 switch 5 ultrasonic testing instrument 6.PC computer 7.CPU main control board 8 motion control module 9 synchronous 10.IO card module 11 servo amplifier 12 support bracket 13 compressing cylinder 14 sheet workpiece pallet support bracket 17 15 16 18 19 support sink pipe workpiece the 20 Guide slot 21 flat workpiece carrier 22 positioning holes 23 casters 24 guide bars 25 Velcro hook 26 casters 27 positioning holes 28 guide bars 29 pipe detection mechanism 30 hasp hook 31 casters 32 positioning holes 33 pin 34 three axis motion platform 35 hasp wrench 36 drive shaft 37 drive shaft roller assembly 38 bearing support 39 screws the 40 handles 41 driven shaft 42 driven shaft roller assembly 43 housing 44 brushless DC motor speed reducer 45 46 rotating transformer 47 seal 48 cantilever bracket 49 chain drive shaft screw shaft screw 50.X 51.Y 52 cylinder 53.Z axis moving slider 54.Z axis screw 55.Z shaft bracket 56 video camera 57.Z axis fixed base 58 synchronous belt 59 the probe assembly 60.X axis beam 61 positioning calculation software 62 video capture card.

Embodiment

Below in conjunction with accompanying drawing, for embodiment, the invention will be further described.

As shown in Figure 1, automatic scanning system comprises video positioning system 1, automatic scanning device 2, control box 3, switch 4, Ultrasonic Detection instrument 5, PC computing machine 6, wherein, control box 3, PC computing machine 6 are to be all connected on switch 4 by Ethernet/optical fiber, and control box 3, automatic scanning device 2 connect by main cables.On PC computing machine 6, running control software, all steering orders and signal data are all undertaken alternately by switch 4 and control box 3, control box 3, according to execution units such as the motor on the order-driven automatic scanning device 2 receiving, cylinders, completes automatic scanning action.Automatic scanning device 2 feeds back to Ultrasonic Detection instrument 5 by ultrasonic signal, the current state information of each motor is turned back to PC computing machine 6 via control box 3, switch 4 simultaneously.When carrying out automatic scanning action, the control software of PC computing machine 6 outputs to Ultrasonic Detection instrument 5 through switch 4 and control box 3 by synchronization pulse, location, position for detection of signal, video positioning system 1 by the vision signal collecting in switch 4 sends back PC computing machine 6, for operating personnel's far-end real-time monitored.Video positioning system 1 is for Real-Time Monitoring scanning equipment motion state and the benchmark Zero calibration to tested tubing or flat panel workpieces.

As shown in Figure 2, control box 3 comprises CPU master control borad 7, motion-control module 8, synchronous board 9, IO module 10, servoamplifier 11.CPU master control borad 7 is connected to switch 4, PC computing machine 6 by the Ethernet/optical fiber on control box 3 panels, according to the steering order receiving from PC computing machine 6, send corresponding control signal and data to motion-control module 8, drive servoamplifier 11 output motors to drive signal, via main cables drive motor, move, meanwhile, the status information of each spindle motor on automatic scanning device 2 is fed back to PC computing machine 6 for monitoring and interface display via switch 4.CPU master control borad 7 is connected to synchronous board 9, the output synchronizing signal of controlling synchronous board 9 by operating software is for detection trigger instrument, IO module 10 is transported to CPU master control borad 7 by the signal of the field apparatus collecting, and controls field device signals be used for monitoring detection signal by operating software.

As shown in Figure 3, automatic scanning device 2 is formed, and is independent design by flat panel workpieces bracket 21, tubing testing agency 29, triaxial movement platform 34 three parts.The bracing frame 12,16,19 of one of parts of formation three parts is all to adopt metal material processing to form, each bracing frame is to make with the aluminium alloy extrusions of 12 left and right in the present embodiment, shape, size are separately determined as required, pilot hole 22,27,32 in each bracing frame lower end, register pin 33, gib block 24,28, gathering sill 20, hasp hooks 25,30, hasp spanner 35 is suppressed and is formed when aluminium alloy sections, castor 23,26,31, is all arranged on respectively the lower end of bracing frame 12,16,19.Supporting plate 15 in flat panel workpieces bracket 21 is arranged on the upper end of bracing frame 12, and clamping cylinder 13, sheet material workpiece 14 are all arranged on supporting plate 15.Tank 18 in tubing testing agency 29 is to make at the surrounding embedding envelope clear sheet of the bracing frame 16 processing, with organic glass, be processed in the present embodiment, tubing workpiece 17 is in the interior rotation of tank 18, and X-axis leading screw 50, Y-axis leading screw 51, Z axis leading screw 54 are all arranged on the upper end of bracing frame 19.

Automatic scanning device 2 adopts split-type design, comprises flat panel workpieces bracket 21, tubing testing agency 29, triaxial movement platform 34 three parts, and bracing frame 12,16,19 is independent design, all adopts bottom castor 23,26,31 modes, is convenient to mobile.Between bracing frame, can combine by guiding mechanism, locking positioning mechanism, as locking positioning between triaxial movement platform 34 and dull and stereotyped work supporting block 21/ tubing testing agency 29, can carry out respectively the detection of flat panel workpieces 14/ tubing workpiece 17, guiding mechanism comprises the gathering sill 20 of triaxial movement platform 34 bottoms and the gib block 24,28 of dull and stereotyped work supporting block 21Huo tubing testing agency 29 bottoms, by the laminating of gib block and gathering sill, triaxial movement platform 34 is advanced to predetermined locked position.Locking positioning mechanism comprises the pilot hole 22,27 of register pin 33, hasp spanner 35 and dull and stereotyped work supporting block 21Huo tubing testing agency 29 bottoms of triaxial movement platform 34 bottoms, hasp hooks 25,30, at triaxial movement platform 34, advance after predetermined locked position, be locked, guarantee there will not be relative sliding.

Fig. 4 is the interior wheel holding mechanism of tank 18 in the tubing testing agency 29 in automatic scanning device 2, comprise the rotating actuator being formed by main drive shaft 36, main drive shaft roll wheel assembly 37, driven shaft 41, driven shaft roll wheel assembly 42, bearing bridge 38, the driven shaft adjusting mechanism consisting of handle 40, screw pair 39 and coupled driven shaft 41, can join driven shaft 41 and institute roll wheel assembly 42 and carry out parallel shifted by shaking rotary handle 40.Main drive shaft roll wheel assembly 37 is arranged on main drive shaft 36, and driven shaft roll wheel assembly 42 is arranged on driven shaft 41, and main drive shaft 36, driven shaft 42 are all erected on bearing bridge 38.

Fig. 5 is the motor-driven modular construction outside tank 18 in tubing testing agency 29 in automatic scanning device 2, mainly case 43, reductor 44, brshless DC motor 45, rotary transformer 46, seal 47, cantilever bearings support 48, chain transmission 49 etc., consists of.Wherein, on case 43 connection water channels 18, reductor 44, brshless DC motor 45, rotary transformer 46 threes are coupled to each other successively, and seal 47 is connected on tank 18, and chain transmission 49 is erected on cantilever bearings support 48.

During work, between the output shaft of motor and main drive shaft 36, pass through chain transmission 49 transmitting torques.Under water during due to driven shaft 41 work, therefore adopt 47 sealings of two-side sealing part, anti-sealing immerses transmission component by gap.By main drive shaft 36 and driven shaft 41, coordinate, complete the tubing workpiece of caliber within the scope of 60mm-300mm and rotatablely move.Position feedback information is provided by the rotary transformer 46 that is arranged on brshless DC motor 45 ends.The driven shaft 41 being connected with nut due to handle 40, screw pair 39 has formed its leading screw adjusting mechanism, therefore only need artificial swinging handle 40 just to drive leading screw to rotate, and then drive nut and driven shaft 41 to laterally move along axis direction, realize the continuous adjusting of driven shaft 41 and main drive shaft 36 spacing.According to the difference of two distance between axles, tubing testing agency 29 can be used for detecting the tubing workpiece of caliber scope between 60mm-300mm.

Fig. 6 is the superstructure schematic diagram of triaxial movement platform 34 in automatic scanning device 2.X/Y/Z tri-axial filament thick sticks are all arranged on the upper end of bracing frame 19, X-axis leading screw 50 is erected on X-axis crossbeam 60, Y-axis leading screw 51 is by Timing Belt 58 transmissions, cylinder 52 is arranged on the bottom of Z axis moving slider 53, video camera 56 is fixing by Z axis fixed pedestal 57, Z axis fixed pedestal 57 is fixed on the bottom of Z axis moving slider 53, probe assembly 59 is arranged on the end of cylinder 52, Z axis leading screw 54 is erected on Z axis fixed support 55, Z axis leading screw 54 is connected by feed screw nut with Z axis moving slider 53, Z axis fixed support 55 and X-axis leading screw 50, X-axis crossbeam 60 is also all connected by feed screw nut respectively with Y-axis leading screw 51.

Triaxial movement platform 34 is X/Y/Z triaxial coordinate mechanism, all adopt motor lead screw transmission, adopt rotary transformer (not providing label in figure) that position feedback information is provided, in the stroke limit position of each axle, all install Hall element (not providing label in figure) additional for spacing detection, Y-axis adopts its leading screw 51 by Timing Belt 58 transmissions, because X-axis crossbeam 60 is all connected by feed screw nut with X-axis leading screw 50 with Y-axis leading screw 51, Z axis fixed support 55, therefore X/Y axle can provide the motion of the double freedom in plane.Z axis leading screw 54 is connected by feed screw nut with Z axis moving slider 53 again, therefore vertical motion can be provided.Probe assembly 59 is arranged on the end of cylinder 52, the cylinder 52 of installing by Z-direction is adjacent to tested workpiece, cylinder pressure can regulate by passing ratio valve (not providing label in figure) continuously, pressure transducer (not providing label in figure) is installed simultaneously feedback information is provided.Video camera 56 is arranged on Z axis fixed pedestal 57, when flat panel workpieces is detected, by the center cross spider of video image, aims at the edge of work, is defined as benchmark zero point, with this, carries out the location of defect in X/Y plane.When tubing workpiece is detected, by the center line of video image, aim at the bus of tubing axis direction both sides, by the installation side-play amount of probe assembly center and video camera, can calculate the coordinate that probe assembly is aimed at tubing center.By the center line of video image, aim at the sideline of tube end face, determine thus the calculating of defect axial location.The rotary transformer of the calculating of defect circumferential position after by motor provides feedback information to calculate.

As shown in Figure 7, the location Calculation software 61 of video positioning system in the video camera 56, video frequency collection card 62, CPU master control borad 7 and the PC computing machine 6 that are arranged on triaxial movement platform 34 forms.Video frequency collection card 62 is arranged on CPU master control borad 7, gathers the vision signal of being caught by video camera 56.CPU master control borad 7 sends to PC computing machine 6 by Ethernet/optical fiber through switch 4 by vision signal.Location Calculation software 61 moves on PC computing machine 6, positions information calculate according to the vision signal of receiving.The function of video system is to move in conjunction with the camera 56 being vertically arranged on motion platform, determines the elements of a fix of tested flat panel workpieces or tubing workpiece, thereby determines the coordinate of scanning point.

As shown in Figure 8, when flat panel workpieces is detected, operating personnel control triaxial movement platform, make the center cross spider of video image aim at the edge of work, are defined as the dull and stereotyped benchmark zero point of detecting.When tubing workpiece is detected, by the center cross spider of video image, aim at the bus of tubing axial direction both sides, can obtain the coordinate that probe assembly is aimed at tubing center line, using this benchmark zero point of detecting as tubing.The calculating of defect circumferential and axial position can provide feedback information to calculate by the rotary transformer after electric rotating machine and X-axis motor.

As shown in Figure 9, in the situation that tested workpiece and triaxial movement platform coordinate exist certain angle, video system can provide locating information for defective locations equally.Respectively video image center cross spider is aimed to four end angles of tested workpiece, by slope, calculated the deflection angle that can determine the relative three-axis platform coordinate of workpiece.Consider measured deviation, can adopt point (x 1, y 1), point (x 2, y 2), point (x 3, y 3) carry out the method that twice deviational survey rate is averaging, obtain deflection angle.Example is as follows:

theta 1=arctan((y 2-y 1)/(x 2-x 1))

theta 2=arctan((y 3-y 1)/(x 3-x 1))

theta=(theta 1+theta 2+90)/2

Obtain after coordinate deflection angle, can calculate the actual coordinate value of specifying scanning path point by Rotating Transition of Coordinate.With point (x 4, y 4) be example, set this scanning path point apart from tested workpiece reference point (x 1, y 1) workpiece coordinate side-play amount be respectively Δ x, Δ y.The actual coordinate that moves to intended trajectory point is calculated as follows:

x 4=x 1+Δxcos(theta)-Δysin(theta)

y 4=y 1+Δxsin(theta)+Δycos(theta)

Below in conjunction with Fig. 1-Fig. 9, set forth the operation process of automatic scanning device 2: flat panel workpieces 14 testing processes.Flat panel workpieces 14 is lifted on plating bracket 21, with clamping cylinder 13, is fixedly clamped.Gib block by triaxial movement platform 34 along flat panel workpieces bracket pushes, and moves to predetermined locked position, is locked.Drive the motor of the X/Y of triaxial movement platform 34, by center line and the edge of work of video camera 56, aim at, being set as plane is the coordinate zero point of X/Y direction, and usings this as scanning benchmark zero point.Then according to precognition workpiece size, drive motor, to appointed area, is carried out automatic scanning.Each shaft position information exchange is crossed the rotary transformer being arranged on after motor end feedback is provided.

Tubing operation detection process: first according to tested pipe diameter, determine the centre distance of main drive shaft 36 and driven shaft 41, adjust driven shaft handle 40 driven shaft 41 is moved to precalculated position.Tubing workpiece 17 is hung in, be rotated on the supporting roller component of main drive shaft 36 and driven shaft 41.To tank 18 water fillings, make the tested tubing member of its submergence.Drive the X/Y of triaxial movement platform to motor, by center line and tube end face, axial two side bus of video camera 56, aim at, determine the position reference zero point of detected pieces.Drive Y-direction motor, move to the shaft centre line position of tested pipe fitting, drive X-direction motor, move to scanning reference position (according to calculating apart from end face).Then, according to setting scanning parameter, drive electric rotating machine and X-direction motor, carry out automatic scanning process.Each shaft position information exchange is crossed the rotary transformer being arranged on after motor end feedback is provided.

Claims (2)

1. for detection of the automatic scanning system of different-diameter tubing peace plate workpiece, comprise video positioning system (1), by bracing frame (12), sheet material workpiece (14), the flat panel workpieces bracket (21) that castor (23) forms and by bracing frame (16), tubing workpiece (17), tank (18), the tubing testing agency (29) that castor (26) forms and by bracing frame (19), castor (31), X-axis leading screw (50), Y-axis leading screw (51), the automatic scanning device (2) that the triaxial movement platform (34) that Z axis leading screw (54) forms forms, control box (3), switch (4), Ultrasonic Detection instrument (5), PC computing machine (6), Ethernet/optical fiber, it is characterized in that:
A. the upper end of the bracing frame (12) of the flat panel workpieces bracket (21) in described automatic scanning device (2) is provided with supporting plate (15), clamping cylinder (13), described sheet material workpiece (14) are installed on described supporting plate (15), and to be placed on described supporting plate (15) upper, is provided with pilot hole (22), gib block (24) and hasp hook (25) on the crossbeam of support frame as described above (12) lower end;
On the lower end floor beam of the bracing frame (16) of the tubing testing agency (29) in described automatic scanning device (2), be provided with pilot hole (27), gib block (28) and hasp hook (30), described tubing workpiece (17) is placed in described tank (18), in tank (18), be provided with by main drive shaft (36), main drive shaft roll wheel assembly (37), bearing bridge (38), screw pair (39), handle (40), driven shaft (41), the wheel holding mechanism that driven shaft roll wheel assembly (42) forms, wherein said main drive shaft roll wheel assembly (37) is arranged on described main drive shaft (36), described driven shaft roll wheel assembly (42) is arranged on described driven shaft (41), main drive shaft (36), driven shaft (41) is erected on described bearing bridge (38), the nut of described screw pair (39) is connected with described driven shaft (41), leading screw in screw pair (39) is connected with described handle (40), at described tank (18), be outside equipped with by case (43), reductor (44), brshless DC motor (45), rotary transformer (46), seal (47), cantilever bearings support (48), the motor-driven assembly that chain transmission (49) forms, wherein said case (43) is connected on described tank (18), described reductor (44), brshless DC motor (45) and described rotary transformer (46) three are coupled to each other successively, described seal (47) is connected on tank (18), described chain transmission (49) is erected on described cantilever bearings support (48),
On the crossbeam of bracing frame (19) lower end of the triaxial movement platform (34) in described automatic scanning device (2), be provided with gathering sill (20), pilot hole (32), register pin (33), hasp spanner (35), in the upper end of support frame as described above (19), be provided with described X-axis leading screw (50), Y-axis leading screw (51), cylinder (52), Z axis moving slider (53), Z axis leading screw (54), Z axis fixed support (55), video camera (56), Z axis fixed pedestal (57), Timing Belt (58), probe assembly (59), X-axis crossbeam (60), wherein said X-axis leading screw (50) is erected on described X-axis crossbeam (60), described Y-axis leading screw (51) is by described Timing Belt (58) transmission, described cylinder (52) is arranged on the bottom of described Z axis moving slider (53), described video camera (56) is fixing by described Z axis fixed pedestal (57), Z axis fixed pedestal (57) is fixed on the bottom of described Z axis moving slider (53), described probe assembly (59) is arranged on the end of described cylinder (52), described Z axis leading screw (54) is erected on described Z axis fixed support (55), Z axis leading screw (54) is connected by feed screw nut with Z axis moving slider (53), described Z axis fixed support (55) is connected by feed screw nut with described X-axis leading screw (50), described X-axis crossbeam (60) is connected by feed screw nut with described Y-axis leading screw (51),
B. described control box (3) is by CPU master control borad (7), motion-control module (8), synchronous board (9), IO module (10), servoamplifier (11) forms, wherein said CPU master control borad (7) outputs a control signal to described motion-control module (8), motion-control module (8) output signal drives signal to described servoamplifier (11) in order to output motor, CPU master control borad (7) is connected to described synchronous board (9), the input end of described IO module (10) is connected to field apparatus, its output terminal is connected with CPU master control borad (7), described CPU master control borad (7) output terminal in described control box (3) is connected with described switch (4) by described Ethernet/optical fiber, described control box (3) also respectively with described automatic scanning device (2), described Ultrasonic Detection instrument (5) connects, described automatic scanning device (2) is connected with described Ultrasonic Detection instrument (5), described switch (4) is connected with described PC computing machine (6) by described Ethernet/optical fiber,
C. the location Calculation software (61) in the CPU master control borad (7) of described video positioning system (1) in described control box (3), video frequency collection card (62), described PC computing machine (6), the video camera (56) in described triaxial movement platform (34) form, described video frequency collection card (62) is mounted on CPU master control borad (7), described location Calculation software (61) is mounted in described PC computing machine (6), and described video camera (56) is mounted in the lower end of the Z axis fixed pedestal (57) in triaxial movement platform (34).
2. the automatic scanning system for detection of different-diameter tubing peace plate workpiece according to claim 1, is characterized in that described castor (23,26,31) is arranged on respectively the lower end of support frame as described above (12,16,19).
CN201210273739.0A 2012-08-02 2012-08-02 Automatic sweeping system for detecting tubing and panel workpiece with different diameters CN102778506B (en)

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