CN207379981U - A kind of TOFD ultrasonic detection scanning rack - Google Patents

Abstract

The utility model discloses a kind of TOFD ultrasonic detection scanning rack, its key points of the technical solution are that：Including scanning frame body, two are symmetrically disposed on scanning frame body side and slide the probe assembly for connecting to detect weld seam size with scanning frame body, it is fixedly connected on scanning frame body both ends and is convenient for the roll wheel assembly slided, it is arranged on scanning frame body to receive and store the encoder component of signal data, it is provided with quickly to adjust the adjusting part that two probe assemblies carry out Relative sliding movement on scanning frame body, adjusting part includes being plugged on scanning frame body and be threadedly coupled with two probe assemblies to control two probe assemblies into the adjusting rod of line slip, the first screw thread and the second screw thread being threadedly coupled with two probe assemblies are respectively arranged on adjusting rod, and first screw thread be reversed with the second hand of thread spiral；The detecting distance of probe assembly can be quickly and easily adjusted by adjusting part.

Description

A kind of TOFD ultrasonic detection scanning rack

Technical field

The utility model is related to non-destructive detecting device technical field, more specifically, it relates to which a kind of diffraction time difference method surpasses Sound detection scanning frame.

Background technology

Diffraction time difference method（TOFD）It is that a kind of rely on obtains at test specimen internal structure to be checked " end angle " and " endpoint " Diffraction energy detects the method for test specimen internal flaw.Such detection method need to use one or more pairs of ultrasonic probes, detection When, each pair ultrasonic probe needs opposite weld seam to be arranged symmetrically, and examination can be accurately obtained by the propagation time difference for measuring diffracted wave The size and location of part internal flaw.

The Chinese patent of Publication No. CN202182875U discloses a kind of combined scanning frame adopting ultrasound diffraction time difference method, bag Girder is included, torsional spring installing plate is equipped with the structure docked with girder with magnet-wheel mounting bracket, in can be slided on girder and pass through butterfly Type bolt is locked at the form on girder；On probe bracket, probe bracket is connected probe by probe shaft with swing arm, is passed through Two-stage rotational structure realizes the up and down motion of probe；Torque spring on torsion axis, with swing arm fix by torque spring one end, leads to It crosses swing arm and downward elastic force is provided, probe bracket is pressed into examined workpiece；There is the fixation of several different angles on probe installing plate Slot, the other end of torque spring are stuck in the fixing groove；Magnet-wheel is fixed on by magnet-wheel axis on magnet-wheel mounting bracket；Guide wheel is also pacified It fills on magnet-wheel mounting bracket.

Scanning frame is adsorbed on examined workpiece by magnetic force；Guide wheel is also installed on magnet-wheel mounting bracket, together with magnet-wheel altogether The rotary motion for being all swing arm determines a termination plane, realizes stable probe mechanical couplings state；But from intrinsic Specification and Figure of description understand that the distance between probe is fixedly installed by butterfly-type bolt, therefore can only be fitted For the detection of the measured piece of single size, when needing to be detected smaller measured piece, easily there is error so that suitable It is smaller with scope, it is unfavorable for promoting being applicable in.

Utility model content

In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of diffraction time difference method ultrasound detections Scanning frame, has the effect of distance between can popping one's head according to the quick and easy adjusting of measured piece size, and the scope of application is larger.

To achieve the above object, the utility model provides following technical solution：

A kind of TOFD ultrasonic detection scanning rack is symmetrically disposed on the scanning frame master including scanning frame body, two Body one side and being slid with the scanning frame body is connected for detecting the probe assembly of weld seam size, be fixedly connected on the scanning It is convenient for the roll wheel assembly slided, is arranged on the scanning frame body to receive and store the volume of signal data in frame body both ends Code device assembly is provided on the scanning frame body quickly to adjust the tune that two probe assemblies carry out Relative sliding movements Component is saved, the adjusting part includes being plugged on the scanning frame body and being threadedly coupled to control with two probe assemblies Two probe assemblies are made into the adjusting rod of line slip, is respectively arranged on the adjusting rod and the two probe assembly screw threads connects The first screw thread and the second screw thread connect, and first screw thread is reversed with second hand of thread spiral.

So set, when needing to be detected measured piece, scanning frame is positioned over above measured piece, and adjusts probe Component so that the relative distance between probe assembly so that probe assembly is in preferable operating position, promotes scanning frame, makes The inswept measured piece of probe assembly is obtained, and is received by encoder and stores the detection data of probe assembly, finally utilizes meter It calculates device and is analyzed data are detected；Adjust probe assembly between when, it is only necessary to by rotating adjusting rod so that be arranged at tune The first opposite screw thread of direction and the second screw thread may insure that the probe assembly being threadedly coupled with adjusting rod both ends occurs on pole It mutually rotates, generates the propulsive force that direction is opposite or direction is opposite jointly so that the distance between two probe assemblies are adjusted.

Further set：The scanning frame body is including the connecting rod with the two probe assemblies sliding connections and symmetrically The straight-bar of the connecting rod two end is arranged at, the roll wheel assembly includes the idler wheel being fixedly connected respectively with the two straight-bar both ends.

So set, it can so that scanning frame bulk motion is steady using the idler wheel for being respectively arranged at two straight-bar both ends, really Protect the smooth working of probe assembly.

Further set：Notch is offered on the connecting rod and is used for the cunning connected for the two probe assembly slidings downwards Slot, the adjusting rod are arranged in the sliding slot, and the adjusting rod both ends are stretched out outside two straight-bars, and the adjusting rod stretches out The both ends of two straight-bars are arranged with anti-slip handle.

So set, adjusting rod is rotated convenient for testing staff using anti-slip handle, so as to fulfill adjusting rod probe assembly Away from adjusting.

Further set：The probe assembly includes sliding and is connected to sliding block in the sliding slot, remote with the sliding block The connecting rod of one end rotation connection from the sliding slot, be rotatablely connected with one end away from the sliding block of the connecting rod it is parallel Block and the probe being arranged on the parallel block.

So set, adjusted by sliding block, connecting rod and parallel block three-level, can cause the lower end of parallel block always with Measured piece surface abuts, and steady convenient for probe assembly slides.

Further set：It offers to connect with the sliding slot on the connecting rod two end side and is provided for two cunnings The opening that block is placed is provided on the sliding block side and the adjusting rod thread fitting and cuts the thread groove of half setting.

So set, it is carried out at any time with scanning frame body convenient for probe assembly using opening and the thread groove for cutting half setting Disassembly and assembly is replaced convenient for the probe assembly to damage.

Further set：The both sides of the opening are both provided with slippage slot, slide and are connected with for close on the slippage slot Seal the sealing plate of the opening.

So set, sealing up opening using sealing plate, assembled probe assembly is avoided to go out to drop out from opening, it is ensured that visit Head assembly most long spacing can be used effectively.

Further set：The small end is provided with the fixing groove for connecting and setting with the sliding slot, the adjusting part Including being arranged in the fixing groove for the clamp system for the two probe assembly operating positions that are fixedly clamped.

So set, can firmly be fixed on probe assembly in sliding slot using clamp system, probe assembly is avoided to exist Adjusting rod shake causes the measurement spacing between two probe assemblies wrong during use, it is ensured that probe assembly detects accurate Degree.

Further set：The clamp system includes being plugged in the fixing groove and abutting with two probe assemblies setting The nylon block put, more be plugged in the gag lever post and be sheathed on that on the nylon block and lower end is fixedly connected with small end For applying stressed compression spring to the nylon block on the gag lever post outer wall, the nylon block upper end is provided with draw ring.

So set, when needing to adjust the spacing between probe assembly, draw ring is pulled so that nylon block and probe assembly Separation is rotating adjusting rod, when the spacing between regulating probe assembly, decontrols draw ring, in compression spring-return power Under the action of, nylon block slides downwards, so as to apply a clamping force to probe assembly, realizes the positioning of probe assembly.

Further set：It is provided with intuitively to read the scale of spacing between two probe assembly on the connecting rod.

So set, utilize the spacing between intuitive and convenient two probe assembly of reading of scale.

Further set：It is provided on the connecting rod convenient for holding or the push-and-pull bracelet promoted.

So set, scanning frame is pushed or pull on convenient for testing staff so that scanning frame can be in quilt using bracelet is pushed and pulled Part surface is surveyed to slide.

By using above-mentioned technical proposal, the utility model is compared compared with the prior art：It can be quick by adjusting part Easily adjust the detecting distance of probe assembly；Using opening and sealing plate convenient for the dismounting and change of probe assembly and most long The effectively use of measurement spacing；The probe assembly set is adjusted using three-level ensures that probe can be kept always with measured piece surface It is horizontally disposed.

Description of the drawings

Fig. 1 is the structure diagram of TOFD ultrasonic detection scanning rack；

Fig. 2 is the structure diagram of the probe assembly of TOFD ultrasonic detection scanning rack；

Fig. 3 is the structure diagram of the adjusting mechanism of TOFD ultrasonic detection scanning rack.

In figure：1st, scanning frame body；11st, connecting rod；12nd, straight-bar；13rd, bracelet is pushed and pulled；14th, sliding slot；15th, it is open；16th, slide Slot；17th, sealing plate；18th, fixing groove；19th, scale；2nd, probe assembly；21st, sliding block；22nd, connecting rod；23rd, parallel block；24th, visit Head；3rd, roll wheel assembly；31st, idler wheel；4th, adjusting part；41st, clamp system；411st, nylon block；412nd, spring is compressed；413rd, /V Bar；414th, draw ring；42nd, adjusting rod；421st, anti-slip handle；422nd, the first screw thread；423rd, the second screw thread；424th, thread groove；5th, encode Device.

Specific embodiment

TOFD ultrasonic detection scanning rack is described further referring to figs. 1 to Fig. 3.

A kind of TOFD ultrasonic detection scanning rack is swept as shown in Figure 1, being symmetrically disposed on including scanning frame body 1, two It looks into 1 one side of frame body and is slid with scanning frame body 1 and connect to detect the probe assembly 2 of weld seam size, be fixedly connected on institute 1 both ends of scanning frame body are stated to be convenient for the roll wheel assembly 3 slided, be arranged on scanning frame body 1 to receive and store signal number According to encoder 5 and be arranged in scanning frame body 1 to adjust the adjusting mechanism of spacing between two probe assemblies 2；Its In, scanning frame body 1 includes the connecting rod 11 connected with the sliding of two probe assemblies 2 and is symmetrically disposed on the straight of 11 both ends of connecting rod Bar 12, the roll wheel assembly 3 include the four rolling 31 being fixedly connected respectively with two straight-bars, 12 both ends, are additionally provided on connecting rod 11 Convenient for the push-and-pull bracelet 13 for holding or promoting.

It is opened up downwards for the sliding slot for the sliding connection of two probe assemblies 2 as shown in Fig. 2, being provided with notch on connecting rod 11 14, connecting rod 11 is provided at both ends with the opening 15 for being connected with sliding slot 14 and being provided for two probe assemblies, 2 installing and dismounting, two openings 15 Both sides be both provided with slippage slot 16, the sealing for sealed opening 15 with the sliding of slippage slot 16 connection is additionally provided in opening 15 Plate 17.

With reference to shown in Fig. 1 and Fig. 2, probe assembly 2 is including sliding the sliding block 21 being connected in sliding slot 14, being stretched out with sliding block 21 The parallel block 23 of one end rotation connection of the connecting rod 22 and connecting rod 22 of one end rotation connection of sliding slot 14 away from sliding block 21, And it is arranged on parallel block 23 to detect the probe 24 of measured piece；Wherein, parallel block 23 should be connected to measured piece upper surface It sets.

With reference to shown in Fig. 1 and Fig. 3, adjusting part 4 wraps the adjusting being plugged in sliding slot 14 and outside two straight-bars 12 of both ends stretching Bar 42 and 11 upper end of connecting rod is arranged at for the clamp system 41 of probe assembly 2 of being fixedly clamped；Wherein, adjusting rod 42 stretches out The both ends of two straight-bars 12 are arranged with the anti-slip handle 421 that adjusting rod 42 is rotated convenient for testing staff.

With reference to shown in Fig. 2 and Fig. 3,42 both ends of adjusting rod are respectively arranged with the first screw thread being threadedly coupled with two sliding blocks 21 422 and second screw thread 423, and the first screw thread 422 is reversed with 423 hand of spiral of the second screw thread, 11 upper end of connecting rod offers The fixing groove 18 set is connected with sliding slot 14, clamp system 41 is arranged at 11 upper end of connecting rod in 18 surrounding position of fixing groove including more Sliding is connected and is plugged in fixing groove 18 for the nylon for the sliding block 21 that is fixedly clamped on the gag lever post 413 and gag lever post 413 put Block 411 and the compression spring 412 for being sheathed on 413 outer wall of gag lever post；Wherein, it is solid with nylon block 411 to compress 412 one end of spring Fixed connection, compression 412 other end of spring are fixedly connected with gag lever post 413, are provided on nylon block 411 and are pulled convenient for testing staff Draw ring 414, be additionally provided on connecting rod 11 convenient for the scale 19 directly perceived for reading spacing between two probe assemblies 2.

Operation principle：When being detected using TOFD ultrasonic detection scanning rack to measured piece, pass through adjusting first Spacing between two probe assembly 2 of institutional adjustment, is then placed on measured piece surface by TOFD ultrasonic detection scanning rack, It is abutted so that the four rolling 31 being arranged on scanning frame body 1 is steady by side part surface, then adjusts probe assembly 2, make Must pop one's head in 24 can with measured piece surface held stationary, finally by push or pull on push-and-pull bracelet 13 so that probe assembly 2 is swept Measured piece was retouched, completes detection.

During using the distance between adjusting mechanism adjustment probe assembly 2, draw ring 414 should be first pulled so that abut folder originally Tight probe assembly 2 move so as to separate with probe assembly 2 upwards along gag lever post 413 so that probe assembly 2 loses limit System；After the restriction of contact probe head component 2, by rotating adjusting rod 42 so that two probe assemblies 2 can Relative sliding, using setting The spacing being placed between definite two probe assemblies 2 of the scale 19 on connecting rod 11, the data that two probe assemblies 2 detect are finally by compiling Code device 5 receives and stores the detection data of probe assembly 2, and is analyzed using calculator by data are detected.

When probe assembly 2 is installed, it is only necessary to will be taken for sealing plate 17 of the sealed set in the opening 15 at 11 both ends of connecting rod It walks, then slips into the sliding block 21 of probe assembly 2 in sliding slot 14 along opening 15, and cause the thread groove being arranged on sliding block 21 Opening 15 respectively with 42 both ends thread fitting of adjusting rod, is then again sealed off, sliding block 21 is avoided to fall by 424 by sealing plate 17 again Fall.

When adjusting probe assembly 2, it is only necessary to be rotatablely connected bar 22 and parallel block 23 respectively so that the lower surface of parallel block 23 It is abutted with measured piece surface.

The above is only the preferred embodiment of the utility model, and the scope of protection of the utility model is not limited merely to Above-described embodiment, all technical solutions belonged under the utility model thinking belong to the scope of protection of the utility model.It should refer to Go out, for those skilled in the art, several improvement under the premise of the utility model principle is not departed from and Retouching, these improvements and modifications also should be regarded as the scope of protection of the utility model.

Claims (10)

1. a kind of TOFD ultrasonic detection scanning rack, including scanning frame body（1）, two be symmetrically disposed on the scanning frame master Body（1）One side and with the scanning frame body（1）Sliding connects to detect the probe assembly of weld seam size（2）, be fixedly connected In the scanning frame body（1）It is convenient for the roll wheel assembly slided in both ends（3）, be arranged at the scanning frame body（1）On for connecing Receive the encoder of simultaneously stored signal data（5）, it is characterised in that：The scanning frame body（1）On be provided with for quickly adjust Two probe assemblies（2）Carry out the adjusting part of Relative sliding movement（4）, the adjusting part（4）It is described including being plugged in Scanning frame body（1）It is upper and with two probe assemblies（2）It is threadedly coupled to control two probe assemblies（2）Into line slip Adjusting rod（42）, the adjusting rod（42）On be respectively arranged with and two probe assemblies（2）The first screw thread being threadedly coupled （422）With the second screw thread（423）, and first screw thread（422）With second screw thread（423）The hand of spiral is reversed.

2. a kind of TOFD ultrasonic detection scanning rack according to claim 1, it is characterised in that：The scanning frame master Body（1）Including with two probe assemblies（2）Slide the connecting rod of connection（11）And it is symmetrically disposed on the connecting rod（11）Both ends Straight-bar（12）, the roll wheel assembly（3）Including respectively with two straight-bars（12）The idler wheel that both ends are fixedly connected（31）.

3. a kind of TOFD ultrasonic detection scanning rack according to claim 2, it is characterised in that：The connecting rod（11） On offer notch and be used for for two probe assemblies downwards（2）Slide the sliding slot of connection（14）, the adjusting rod（42）It wears In the sliding slot（14）It is interior, and the adjusting rod（42）Two straight-bars are stretched out at both ends（12）Outside, the adjusting rod（42）It stretches out Two straight-bars（12）Both ends be arranged with anti-slip handle（421）.

4. a kind of TOFD ultrasonic detection scanning rack according to claim 3, it is characterised in that：The probe assembly （2）Include sliding and be connected to the sliding slot（14）Interior sliding block（21）And the sliding block（21）Away from the sliding slot（14）'s The connecting rod of one end rotation connection（22）And the connecting rod（22）Away from the sliding block（21）One end rotation connection it is parallel Block（23）And it is arranged at the parallel block（23）On probe（24）.

5. a kind of TOFD ultrasonic detection scanning rack according to claim 4, it is characterised in that：The connecting rod（11） It is offered in two end side surfaces and the sliding slot（14）Connection is provided for two sliding blocks（21）The opening of placement（15）, institute State sliding block（21）It is provided on side and the adjusting rod（42）Thread fitting and the thread groove for cutting half setting（424）.

6. a kind of TOFD ultrasonic detection scanning rack according to claim 5, it is characterised in that：The opening（15） Both sides be both provided with slippage slot（16）, the slippage slot（16）Upper sliding is connected with to seal the opening（15）Sealing Plate（17）.

7. a kind of TOFD ultrasonic detection scanning rack according to claim 3, it is characterised in that：The connecting rod（11） Upper end is provided with and the sliding slot（14）Connect the fixing groove set（18）, the adjusting part（4）It is described solid including being arranged at Determine slot（18）On for two probe assemblies that are fixedly clamped（2）The clamp system of operating position（41）.

8. a kind of TOFD ultrasonic detection scanning rack according to claim 7, it is characterised in that：The clamp system （41）Including being plugged in the fixing groove（18）It is interior and with two probe assemblies（2）Abut the nylon block set（411）, more It is plugged in the nylon block（411）Upper and lower end and connecting rod（11）The gag lever post that upper end is fixedly connected（413）And it is sheathed on institute State gag lever post（413）It is used on outer wall to the nylon block（411）Apply stressed compression spring（412）, the nylon block （411）Upper end is provided with draw ring（414）.

9. a kind of TOFD ultrasonic detection scanning rack according to claim 2, it is characterised in that：The connecting rod（11） On be provided with to read two probe assemblies convenient for directly perceived（2）Between spacing scale（19）.

10. a kind of TOFD ultrasonic detection scanning rack according to claim 2, it is characterised in that：The connecting rod （11）On be provided with convenient for holding or promote push-and-pull bracelet（13）.