CN213689488U

CN213689488U - TOFD check out test set

Info

Publication number: CN213689488U
Application number: CN202022124541.9U
Authority: CN
Inventors: 王俊龙; 宋晓伟; 梁春涛; 刘乐; 赵晓宇
Original assignee: Hebei Ji'an Huarui Nondestructive Testing Technology Co ltd
Current assignee: Hebei Ji'an Huarui Nondestructive Testing Technology Co ltd
Priority date: 2020-09-24
Filing date: 2020-09-24
Publication date: 2021-07-13
Anticipated expiration: 2030-09-24

Abstract

The utility model relates to a TOFD check out test set, a nondestructive test equipment's field is related to, it includes the host computer, be provided with the probe on the host computer, the probe passes through the cable and is connected with the host computer, the probe is provided with two, the probe top is connected with the push rod, the push rod is provided with the subassembly that pulls outward, it includes the bracing piece to pull the subassembly, a slide rail, the connecting rod, slide rail extending direction is on a parallel with probe moving direction, the slide rail is provided with two, two slide rails are located the probe respectively and keep away from one side each other, bracing piece fixed connection is in the slide rail bottom surface, bracing piece bottom and determinand surface connection, connecting rod sliding connection is in the slide rail, connecting rod sliding direction is. The application has the effect of improving the detection precision.

Description

TOFD check out test set

Technical Field

The application relates to the field of nondestructive testing equipment, in particular to TOFD (time of flight diffraction) testing equipment.

Background

TOFD (time of flight diffraction technique), namely ultrasonic diffraction time difference detection technology, is a detection technology which detects defects and quantifies the defects by means of diffraction waves emitted by interaction of ultrasonic waves and the ends of the defects.

The TOFD detection equipment adopts a first-sending and a second-receiving broadband narrow pulse probes for detection, the probes are symmetrically arranged relative to the central line of a welding seam, a transmitting probe generates a non-focused longitudinal wave beam to be incident into a detected workpiece at a certain angle, part of the beam is transmitted along a near surface and received by a receiving probe, part of the beam is reflected by a bottom surface and received by the receiving probe, and the receiving probe determines the position and the height of a defect by receiving a diffraction signal of the tip of the defect and time difference of the diffraction signal; when the device is used, the two probes are abutted to the surface of an object to be detected, the probes are pushed by hands to move on the surface of the object to be detected, and the probes transmit signals to the host for data analysis.

With respect to the related art in the above, the inventors consider that there is a drawback that the detection accuracy is low.

SUMMERY OF THE UTILITY MODEL

In order to improve the detection precision, the application provides TOFD detection equipment.

The TOFD detection equipment adopts the following technical scheme:

the utility model provides a TOFD check out test set, which comprises a host computer, be provided with the probe on the host computer, the probe passes through the cable and is connected with the host computer, the probe is provided with two, the probe top is connected with the push rod, the push rod is provided with outward and draws the subassembly, it includes the bracing piece to draw the subassembly, a slide rail, the connecting rod, slide rail extending direction is on a parallel with probe moving direction, the slide rail is provided with two, two slide rails are located the probe respectively and keep away from one side each other, bracing piece fixed connection is in the slide rail bottom surface, the bracing piece bottom is connected with the object surface that awaits measuring, connecting rod sliding connection is in the slide rail.

By adopting the technical scheme, when measurement is carried out, the sliding rail is moved to drive the two probes to move, so that the two probes are symmetrical about a welding line, then the sliding rail is moved to enable the probes and the supporting rod to be abutted against the surface of an object to be measured, the supporting rod is connected with the object to be measured, the connecting rod is driven to move, the connecting rod drives the push rod and the probes to move, the probes move on the surface of the object to be measured, wave beams transmitted in the object to be measured are received, and wave beam signals are transmitted to the host computer for data; the connecting rod is driven by the lead screw to drive the push rod to move, so that the push rod can be kept in a horizontal state in the moving process, the probability of inclination of the push rod is reduced, the probability that the two probes are in a tandem state in the moving direction is reduced, the moving state of the two probes is ensured to be constant, and the detection accuracy is improved.

Optionally, the bottom of the support rod is fixedly connected with a sucker.

By adopting the technical scheme, the supporting rod is pressed, so that the sucker is adsorbed on the surface of the object to be detected, the supporting rod is quickly and conveniently connected with the object to be detected, and the object to be detected cannot be damaged; after the detection is finished, the support rod is pulled towards the direction far away from the surface of the object to be detected, so that the sucker is separated from the object to be detected, and the support rod is separated from the object to be detected quickly and conveniently.

Optionally, a mounting groove is formed in one side, away from the sliding rail, of the connecting rod, the push rod is inserted into the mounting groove, a bolt is connected to the connecting rod in a threaded mode, and the bolt is connected to the push rod in a threaded mode.

By adopting the technical scheme, before the device is used, the push rod, the probe and the traction assembly are in a separated state, so that the device is convenient to store and transport; when the device is used, the push rod is inserted into the mounting groove, and the connecting rod and the push rod are fixedly connected through the bolt, so that the push rod and the connecting rod are quickly and conveniently connected, and the probe and the traction assembly are quickly and conveniently connected; after the detection is finished, the bolt is unscrewed, the push rod is moved out from the mounting groove, and the quick separation of the push rod and the connecting rod is realized.

Optionally, a center rod is fixedly connected to the push rod, the bottom of the center rod is coplanar with the bottoms of the probes, and the two probes are symmetrical about the center rod.

Through adopting above-mentioned technical scheme, when detecting, with the sucking disc on the bracing piece with the determinand surface contact but not adsorb, then remove the slide rail and drive well core rod and remove to well core rod and align with the welding seam on determinand surface, then press the bracing piece for the sucking disc adsorbs on determinand surface, and two probes are about well core rod symmetry, and well core rod is to the welding seam alignment then realize two probes about the welding seam symmetry, improves the accuracy of two probes about the welding seam symmetry, is favorable to improving the accuracy nature of testing result.

Optionally, the bottom of the central rod is rotatably connected with a ball.

Through adopting above-mentioned technical scheme, ball and determinand surface contact, well core rod is along with the push rod motion in-process, and the ball rotates under the frictional force on determinand surface, turns into rolling frictional force with well core rod and determinand surperficial sliding frictional force, reduces the frictional force between well core rod and the determinand surface, reduces well core rod to the damage on determinand surface, reduces the resistance that receives in the push rod motion process simultaneously for the testing process is more smooth.

Optionally, the connecting rod comprises an outer tube and an inner rod, the inner rod is connected to the outer tube in a sliding mode, the sliding direction of the inner rod is horizontal and parallel to the moving direction of the probe, the outer tube is sleeved outside the inner rod, the outer tube is connected to the screw rod in a threaded mode, and the mounting groove is formed in the inner rod; fixedly connected with screw rod on the interior pole has seted up logical groove on the outer tube, and the screw rod is kept away from interior pole one end and is passed logical groove and arrange in the outer tube outside, and threaded connection has the nut on the screw rod, and the nut is located the outer tube.

Through adopting above-mentioned technical scheme, when the object surface unevenness that awaits measuring, unscrew the nut, the movable slide rail makes outer tube relative interior pole slide, changes connecting rod length for the bracing piece removes to the comparatively level and smooth position in surface, guarantees that the sucking disc can adsorb on the object surface that awaits measuring, then screws up the nut, when adjustment connecting rod length, will adjust two connecting rod lengths simultaneously, guarantees that well core rod aligns with the welding seam.

Optionally, the probe top is provided with an adjusting rod, the adjusting rod comprises a fixing rod and a connecting pipe, the fixing rod is vertically slidably connected to the connecting pipe, the connecting pipe is sleeved outside the fixing rod, the connecting pipe is connected to the push rod, the fixing rod is fixedly connected to the probe top, the fixing rod is close to one end of the push rod and is fixedly connected with a spring, and one end of the spring, far away from the probe, is fixedly connected to.

By adopting the technical scheme, when detection is carried out, the spring pushes the probe, so that the probe is tightly propped against the surface of an object to be detected, and the accuracy of a detection result is improved; in addition, if the surface of the object to be detected is uneven, the spring can play a role in buffering the probe when the probe moves to the uneven position, and the damage effect on the probe when the probe moves to the uneven position is reduced.

Optionally, a limiting groove is formed in the inner wall of the connecting pipe, the limiting groove extends along the length direction of the connecting pipe, a limiting block is fixedly connected to the fixing rod, and the limiting block is located in the limiting groove.

Through adopting above-mentioned technical scheme, the spacing groove restriction stopper is at the removal of horizontal direction to the restriction dead lever takes place to rotate in the connecting tube, guarantees the stability of probe and the object surface connection that awaits measuring, is favorable to improving the accuracy nature of testing result.

In summary, the present application includes at least one of the following beneficial technical effects:

1. by arranging the traction assembly, the motion states of the two probes are ensured to be constant, and the accuracy of a detection result is improved;

2. the traction assembly and the object to be detected are quickly connected and separated by arranging the sucking disc;

3. through setting up outer tube and spring, guarantee probe and determinand surface butt, be favorable to improving the accuracy nature of detecting the structure.

Drawings

FIG. 1 is a schematic view of the overall structure of the present embodiment;

figure 2 is a cross-sectional view of the present embodiment taken parallel to the rod axis;

FIG. 3 is an enlarged view of portion A of FIG. 2;

figure 4 is a cross-sectional view of the present embodiment taken perpendicular to the rod axis;

fig. 5 is an enlarged view of a portion B in fig. 4.

Description of reference numerals: 1. a host; 11. a probe; 12. a push rod; 121. a center pole; 1211. a ball bearing; 13. adjusting a rod; 131. fixing the rod; 1311. a limiting block; 1312. a spring; 132. a connecting pipe; 1321. a limiting groove; 2. a traction assembly; 21. a support bar; 211. a suction cup; 22. a slide rail; 221. a chute; 222. a lead screw; 2221. a motor; 23. a connecting rod; 231. an outer tube; 2311. a through groove; 232. an inner rod; 2321. a screw; 2322. a nut; 2323. mounting grooves; 2324. a bolt; 3. an analyte.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses TOFD check out test set. Referring to fig. 1 and 2, a TOFD check out test set includes host computer 1, is provided with probe 11 on the host computer 1, and probe 11 passes through the cable and is connected with host computer 1, and probe 11 is provided with two, and 11 top fixedly connected with push rods 12 of probe are provided with the subassembly 2 that pulls that drive push rod 12 removed outside push rod 12, and pull subassembly 2 drive push rod 12 and drive two probes 11 and remove for two 11 motion state of probe keep the unanimity, are favorable to improving the accuracy nature of testing result.

Referring to fig. 2 and 3, the traction assembly 2 includes two support rods 21, two slide rails 22, and a connecting rod 23, wherein an extending direction of the slide rails 22 is parallel to a moving direction of the probe 11, the two slide rails 22 are respectively located at one side of the probe 11 away from each other, the support rods 21 are fixedly connected to bottom surfaces of the slide rails 22, two support rods 21 are arranged on each slide rail 22, a suction cup 211 is fixedly connected to a bottom of the support rod 21, when the suction cup 211 is adsorbed on the object 3 to be tested, the probe 11 abuts against a surface of the object 3 to be tested, a lead screw 222 is rotatably connected to the slide rails 22, a rotating axis of the lead screw 222 is parallel to the moving direction of the probe 11, a sliding groove 221 is formed in the slide rail 22, the lead screw 222 is located in the sliding groove 221, one end of the lead screw 222 is connected to a motor 2221 for driving the lead, the connecting rod 23 is in threaded connection with a bolt 2324, and the bolt 2324 is in threaded connection with the push rod 12; when detecting, insert push rod 12 in installing groove 2323, and fix push rod 12 and connecting rod 23 with bolt 2324, remove slide rail 22 and make sucking disc 211 and 3 surfaces of determinand just butt, then remove slide rail 22 and make two probes 11 be symmetrical about the welding seam on 3 surfaces of determinand, press down bracing piece 21 and make sucking disc 211 adsorb on 3 surfaces of determinand, starter motor 2221 drive lead screw 222 rotates, lead screw 222 drives push rod 12 and two probes 11 through connecting rod 23 and removes, detect, the uniformity of holding motion that two probes 11 can be fine in the removal process, be favorable to improving the accuracy nature of testing result.

Referring to fig. 3, the connecting rod 23 includes an outer tube 231 and an inner rod 232, the inner rod 232 is slidably connected to the outer tube 231, the sliding direction of the inner rod 232 is horizontal and parallel to the moving direction of the probe 11, the outer tube 231 is sleeved outside the inner rod 232, the outer tube 231 is connected to the lead screw 222 in a threaded manner, the mounting groove 2323 is formed in the inner rod 232, and the bolt 2324 is connected to the inner rod 232 in a threaded manner; the inner rod 232 is fixedly connected with a screw 2321, the screw 2321 is located at a position, far away from the installation groove 2323, on the inner rod 232, a through groove 2311 is formed in the outer pipe 231, one end, far away from the inner rod 232, of the screw 2321 penetrates through the through groove 2311 and is arranged outside the outer pipe 231, a nut 2322 is connected to the screw 2321 in a threaded manner, and the nut 2322 is located outside the outer pipe 231; if the surface of the object to be detected 3 is uneven, the nut 2322 is unscrewed, so that the outer tube 231 and the inner rod 232 slide relatively to adjust the length of the connecting rod 23, the nut 2322 is screwed after the supporting rod 21 and the suction cup 211 are located at the flat positions, the nut 2322 is tightly abutted against the outer tube 231, the surface adsorption stability of the suction cup 211 and the object to be detected 3 is favorably improved, the surface connection stability of the traction assembly 2 and the object to be detected 3 is improved, and the accuracy of the detection result is favorably improved.

Referring to fig. 1 and 2, a central rod 121 is fixedly connected to a push rod 12, the two probes 11 are symmetrical with respect to the central rod 121, a ball 1211 is rotatably connected to the bottom of the central rod 121, the ball 1211 is spherical, and the lowest point of the ball 1211, which is far away from the push rod 12, is coplanar with the bottom surfaces of the probes 11, so that the central rod 121 is aligned with a weld on the surface of the object to be detected 3, that is, the two probes 11 are symmetrical with respect to the weld, and the accuracy of symmetry of the two probes 11 can be improved, which.

Referring to fig. 4 and 5, the top end of the probe 11 is provided with an adjusting rod 13, the adjusting rod 13 includes a fixing rod 131 and a connecting pipe 132, the fixing rod 131 is vertically slidably connected to the connecting pipe 132, the connecting pipe 132 is sleeved outside the fixing rod 131, the connecting pipe 132 is connected to the push rod 12, the fixing rod 131 is fixedly connected to the top end of the probe 11, one end of the fixing rod 131 close to the push rod 12 is fixedly connected to a spring 1312, one end of the spring 1312 far away from the probe 11 is fixedly connected to the inner wall of the connecting pipe 132, the inner wall of the connecting pipe 132 is provided with a limiting groove 1321, the limiting groove 1321 extends along the length; the spring 1312 extrudes the probe 11 to enable the probe 11 to be tightly abutted against the surface of the object to be detected 3, the limiting groove 1321 is matched with the limiting block 1311 to limit the probe 11 to rotate in the connecting pipe 132, so that the abutting of the probe 11 and the object to be detected 3 is kept stable, and the accuracy of a detection result is improved; in addition, when the surface of the object 3 to be measured is uneven, the spring 1312 can also play a role in buffering the probe 11, so that the probability that the probe 11 is damaged is reduced.

The implementation principle of the TOFD detection device in the embodiment of the present application is as follows: before use, the push rod 12 and the traction assembly 2 are in a separated state, so that the storage and the transportation are convenient; during detection, the push rod 12 is inserted into the mounting groove 2323, the push rod 12 and the connecting rod 23 are fixed through the bolt 2324, the length of the connecting rod 23 is determined according to the specific flatness and shape of the surface of the object to be detected 3, the slide rail 22 is pulled to enable the outer tube 231 and the inner rod 232 to relatively slide to adjust the length of the connecting rod 23 to be a proper length, the nut 2322 is screwed down, the suction cup 211 is lightly abutted to the surface of the object to be detected 3, the slide rail 22 is moved until the central rod 121 is aligned with a welding line, and then the support rod 21 is pressed to enable the suction cup 211 to be; the motor 2221 is started to drive the screw rod 222 to rotate, the screw rod 222 rotates to drive the push rod 12 and the probes 11 to move through the connecting rod 23, so that detection is performed, the motion states of the two probes 11 keep high consistency, and the accuracy of a detection result is improved; after the detection is finished, the supporting rod 21 is pulled away from the object 3 to be detected, the suction cup 211 is separated from the object 3 to be detected, then the bolt 2324 is unscrewed, and the push rod 12 is separated from the connecting rod 23.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A TOFD test device, comprising: comprises a host (1), wherein the host (1) is provided with a probe (11), the probe (11) is connected with the host (1) through a cable, the number of the probes (11) is two, the top of the probe (11) is connected with a push rod (12), a traction assembly (2) is arranged outside the push rod (12), the traction assembly (2) comprises a support rod (21), a slide rail (22) and a connecting rod (23), the extension direction of the slide rail (22) is parallel to the moving direction of the probe (11), the slide rail (22) is provided with two, the two slide rails (22) are respectively positioned at one side of the probe (11) far away from each other, the support rod (21) is fixedly connected with the bottom surface of the slide rail (22), the bottom of the support rod (21) is connected with the surface of an object to be detected (3), the connecting rod (23) is slidably connected with the slide rail (22), the, the connecting rod (23) is positioned in the sliding groove (221), and the push rod (12) is detachably connected to the connecting rod (23).

2. The TOFD detection apparatus according to claim 1, wherein: the bottom of the support rod (21) is fixedly connected with a sucker (211).

3. The TOFD detection apparatus according to claim 1, wherein: mounting groove (2323) have been seted up to connecting rod (23) one side of keeping away from slide rail (22), and in push rod (12) were inserted and are located mounting groove (2323), threaded connection had bolt (2324) on connecting rod (23), bolt (2324) threaded connection in push rod (12).

4. The TOFD detection apparatus according to claim 1, wherein: the push rod (12) is fixedly connected with a center rod (121), the bottom of the center rod (121) is coplanar with the bottoms of the probes (11), and the two probes (11) are symmetrical about the center rod (121).

5. The TOFD detection apparatus according to claim 4, wherein: the bottom of the central rod (121) is rotatably connected with a ball (1211).

6. The TOFD detection apparatus according to claim 3, wherein: the connecting rod (23) comprises an outer tube (231) and an inner rod (232), the inner rod (232) is connected to the outer tube (231) in a sliding mode, the sliding direction of the inner rod (232) is horizontal and parallel to the moving direction of the probe (11), the outer tube (231) is sleeved outside the inner rod (232), the outer tube (231) is connected to the lead screw (222) in a threaded mode, and the mounting groove (2323) is formed in the inner rod (232); fixedly connected with screw rod (2321) is gone up in interior pole (232), has seted up logical groove (2311) on outer tube (231), and outside interior pole (232) one end was passed logical groove (2311) and is arranged in outer tube (231) was kept away from in screw rod (2321), and threaded connection has nut (2322) on screw rod (2321), and nut (2322) is located outer tube (231).

7. The TOFD detection apparatus according to claim 1, wherein: the probe (11) top is provided with adjusts pole (13), adjust pole (13) including dead lever (131), connecting pipe (132), dead lever (131) vertical sliding connection is in connecting pipe (132), connecting pipe (132) cover is established outside dead lever (131), connecting pipe (132) are connected in push rod (12), dead lever (131) fixed connection is in probe (11) top, dead lever (131) are close to push rod (12) one end fixedly connected with spring (1312), one end fixed connection in connecting pipe (132) inner wall is kept away from probe (11) in spring (1312).

8. The TOFD detection apparatus of claim 7, wherein: spacing groove (1321) have been seted up to connecting pipe (132) inner wall, and spacing groove (1321) extend along connecting pipe (132) length direction, fixedly connected with stopper (1311) on dead lever (131), and stopper (1311) are located spacing groove (1321).