CN103940912B - Be applied to the probe gripper of timber Ultrasonic NDT - Google Patents
Be applied to the probe gripper of timber Ultrasonic NDT Download PDFInfo
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- CN103940912B CN103940912B CN201410148465.1A CN201410148465A CN103940912B CN 103940912 B CN103940912 B CN 103940912B CN 201410148465 A CN201410148465 A CN 201410148465A CN 103940912 B CN103940912 B CN 103940912B
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- probe
- spring
- universal
- clamping screw
- overhanging beam
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Abstract
The present invention proposes a kind of probe gripper being applied to timber Ultrasonic NDT.The present invention includes overhanging beam, backboard, compressing structure and probe clamping assembly, backboard has laterally zygomorphic chute, one end of overhanging beam coordinates with slide, and overhanging beam is provided with a pair compressing structure that can move horizontally, and is provided with probe clamping assembly between this is to compressing structure.The present invention passes through the method for multiple degrees of freedom method of adjustment and spring power transmission, probe is made to be provided with the dirigibility of space free-position adjustment, after fixing frame and plank to be checked, just can adjust the position of probe, reach the requirement that probe and the good coupling of examined workpiece, upper and lower two good centerings of popping one's head in, snap-in force are controlled, the demand of wood materials Ultrasonic NDT can be met well.
Description
Technical field
The present invention relates to a kind of probe gripper, particularly relate to the probe gripper being applied to timber ultrasonic nondestructive testing.
Background technology
In timber ultrasonic nondestructive testing, probe gripper is that whole testing process has been carried for stable testing environment.When using transmission beam method to detect wood materials, probe gripper needs to be that the ultrasonic probe of 50 ~ 250KHz and tested wood materials are fitted by two resonance frequencies, and ensures their centerings.Compared with common metal Ultrasonic NDT, the Ultrasonic Detection condition more complicated of wood materials, is mainly reflected in: 1) compared with the metal shell of transducer, and the quality of wood materials is general softer, is easily damaged by pressure by transducer; 2) tested wooden material surface is more coarse, and parallelism error is large, and coupling condition change greatly.
For such testing environment, the probe gripper of timber Ultrasonic NDT answers the following characteristic of tool:
1) probe can regulate, to adapt to the transducer of different parallelism error by multiple degrees of freedom;
2) can ensure for difform wood materials centering of popping one's head in;
3) according to the difference of wood materials quality and surfaceness, the snap-in force of probe can be regulated, ensure that coupling condition is good.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, have passed a kind of probe gripper being applied to timber Ultrasonic NDT.
Technical scheme of the present invention is:
The present invention includes overhanging beam, backboard, compressing structure and probe clamping assembly, backboard has laterally zygomorphic chute, one end of overhanging beam coordinates with slide, and overhanging beam is provided with a pair compressing structure that can move horizontally, and is provided with probe clamping assembly between this is to compressing structure.
Described probe clamping assembly forms primarily of clamping screw, two-dimentional steering structure, spring top board, spring, probe fixed head and probe clip, the top of clamping screw is provided with handle, the stage casing of clamping screw is provided with two-dimentional steering structure, the bottom of clamping screw is provided with the spring top board of cross-type, and clamping screw is locked in the center pit of spring top board by shaft end ring.
Described probe fixed head is connected with spring top board by the spring conductor rod of surrounding, and spring conductor rod is provided with spring; Probe fixed head is provided with can the probe clip of translation, is provided with probe in probe clip.
Furtherly, described two-dimentional steering structure comprises universal overlap joint block and universal adapting block; Matching with the axle head of universal overlap joint block in the hole, two, left and right of universal adapting block, universal adapting block can be rotated around the axis of universal overlap joint block, obtain a direction rotary freedom; Screw is tightened on nut through former and later two holes of universal adapting block, and nut is rotated around former and later two axially bored lines of universal adapting block, and obtain another direction rotary freedom, described nut coordinates with clamping screw.
The beneficial effect that the present invention has is:
The present invention passes through the method for multiple degrees of freedom method of adjustment and spring power transmission, probe is made to be provided with the dirigibility of space free-position adjustment, after fixing frame and plank to be checked, just can adjust the position of probe, reach the requirement that probe and the good coupling of examined workpiece, upper and lower two good centerings of popping one's head in, snap-in force are controlled, the demand of wood materials Ultrasonic NDT can be met well.
Accompanying drawing explanation
Accompanying drawing 1: install Fixture assembly axle when popping one's head in and measure intention;
Accompanying drawing 2: probe clamping general assembly axle measures intention;
The axonometric drawing that accompanying drawing 3:100kHz pops one's head in.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Figure 1, two in the present embodiment parallel overhanging beams 3,6,13,20 connect into an entirety by end plate 2,10,12,19, become the slide rail that transducer clamping assembly 7,16 moves, overhanging beam can slide on backboard 1, to adapt to the plank to be checked of different-thickness.Two pairs of housing screw top boards 4,8,14,17 and housing screw 5,9,15,18 can move on overhanging beam, and when tightening housing screw, whole basic machine just can be fixed on tested wood materials 11.
The head of overhanging beam has and is similar to the same structure of tenon, matches, overhanging beam can be moved up and down in chute with the chute on backboard 1.Overhanging beam sides also processes the chute penetrated, universal overlap joint block 705,706 (as accompanying drawing 2) in probe clamping assembly 7 can move around in chute, make whole probe clamping assembly be provided with degree of freedom (X to) along chute direction, by screw, probe can be clamped assembly time necessary and be fixed on overhanging beam.The latter half has the slide rail identical with the first half and probe clamping assembly.
The side of housing screw top board 4,8,14,17 has and is similar to the same structure of tenon, can be fixed on slide rail in the chute that can be inserted into overhanging beam, whole frame can be fixed on and be clamped in frame on plank to be checked or by measuring samples by housing screw 5,9,15,18 with matching, and the compression for follow-up probe provides stable condition.
Probe clamping assembly as shown in Figure 2, probe clamping assembly is primarily of clamping screw 701, handle 702,703, nut 704, universal overlap joint block 705,706, spring top board 727, spring conductor rod 732,733,734,735, spring 723,724,725,726, probe fixed head 718 and probe clip 714,717 form.Match with the axle head of universal overlap joint block 705,706 in two holes of universal adapting block 704 side, universal adapting block 704 can be rotated around the axis of universal overlap joint block 705,706, make it the rotary freedom with A axle, namely make the probe 713 of below have the degree of freedom of rotating along A axle.Screw 736,737 through universal adapting block former and later two holes be tightened on nut 738, nut 738 can be rotated around former and later two axially bored lines of universal adapting block, make it the rotary freedom with B axle, namely make the probe 713 of below have the degree of freedom of rotating along B axle.So far probe a bit can do the swing of any direction within the specific limits around space, achieves the adjustment of any attitude.Probe clip 714 and 717 can press from both sides steady on probe 713 by tightening screw 715,716, the upper surface of probe clip 714 and 717 respectively has two screws, screw 708,709,710,711 is tightened in the screw of probe clip 714 and 717 upper surface through the chute of probe fixed head 718 both sides, the probe clip 714 and 717 of probe 713 and fixed thereon can be moved along the chute axis direction of fixed head of popping one's head in, and make to pop one's head in the degree of freedom be provided with along X-direction.Spring conductor rod 732,733,734,735 is tightened on probe fixed head through after the through hole on probe fixed head four angles by nut 719,720,721,722 admittedly, through hole on spring top board 727 4 angles matches with spring conductor rod, and fixed by nut 728,729,730,731, spring top board can be moved up and down along the axis direction of spring conductor rod.Between spring top board and probe fixed head, have spring 723,724,725,726, the snap-in force of spring top board is not directly delivered on probe, but passes to probe by spring, thus reaches the controlled requirement of snap-in force.The shaft part of clamping screw 701 lower end matches with the center pit of the shaft shoulder with spring top board, and it is locked in center pit by shaft end ring 707, clamping screw can only be rotated around spring top board center pit axis, this ensures that there the probe of lower end when rotary screw presses down not rotate along with the rotation of screw rod, only probe has been passed in the motion that screw rod moves up and down.Clamping screw 701 motion that matches with nut 738 achieves the degree of freedom of popping one's head in along screw axis (Z axis) direction, so far, probe is provided with X, Y, Z and A, the axial degree of freedom of B, free-position adjustment can be carried out in space, meet the requirement of testing environment to Ultrasonic NDT fixture.Probe in the present embodiment selects the nonmetal probe of Guangdong Shantou Goworld Co., Ltd. Ultrasonic Instrument Branch Company, and probe model is 100K-40F.
During examinations, the contact situation mainly by regulating transducer clamping assembly to optimize transducer and tested wood materials.Transducer clamping assembly can slide in slide rail, makes transducer have degree of freedom in X direction; Regulate a pair transducer folder on transducer clamping assembly, transducer can be made to have the degree of freedom of Y-direction; Screw rod can be made to move up and down by the spanner pulled on transducer clamping assembly, clamp wood materials to be checked, make transducer have the degree of freedom of Z-direction; Transducer clamping assembly can rotate around A axle and B axle, makes the transducer of its lower end can do the swing of any direction within the specific limits around central point, realizes any posture adjustment; In addition, four springs on transducer clamping assembly, by coordinating with guide pole and pressing plate, can realize the adjustment of snap-in force.
Claims (2)
1. be applied to the probe gripper of timber Ultrasonic NDT, comprise overhanging beam, backboard, compressing structure and probe clamping assembly, backboard has laterally zygomorphic chute, one end of overhanging beam coordinates with slide, overhanging beam is provided with a pair compressing structure that can move horizontally, between this is to compressing structure, be provided with probe clamping assembly, its feature exists:
Described probe clamping assembly forms primarily of clamping screw, two-dimentional steering structure, spring top board, spring, probe fixed head and probe clip, the top of clamping screw is provided with handle, the stage casing of clamping screw is provided with two-dimentional steering structure, the bottom of clamping screw is provided with the spring top board of cross-type, and clamping screw is locked in the center pit of spring top board by shaft end ring;
Described probe fixed head is connected with spring top board by the spring conductor rod of surrounding, and spring conductor rod is provided with spring; Probe fixed head is provided with can the probe clip of translation, is provided with probe in probe clip.
2. the probe gripper being applied to timber Ultrasonic NDT according to claim 1, is characterized in that: described two-dimentional steering structure comprises universal overlap joint block and universal adapting block; Matching with the axle head of universal overlap joint block in the hole, two, left and right of universal adapting block, universal adapting block can be rotated around the axis of universal overlap joint block, obtain a direction rotary freedom; Screw is tightened on nut through former and later two holes of universal adapting block, and nut is rotated around former and later two axially bored lines of universal adapting block, and obtain another direction rotary freedom, described nut coordinates with clamping screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410148465.1A CN103940912B (en) | 2014-04-14 | 2014-04-14 | Be applied to the probe gripper of timber Ultrasonic NDT |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410148465.1A CN103940912B (en) | 2014-04-14 | 2014-04-14 | Be applied to the probe gripper of timber Ultrasonic NDT |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103940912A CN103940912A (en) | 2014-07-23 |
| CN103940912B true CN103940912B (en) | 2016-02-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410148465.1A Expired - Fee Related CN103940912B (en) | 2014-04-14 | 2014-04-14 | Be applied to the probe gripper of timber Ultrasonic NDT |
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| CN (1) | CN103940912B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105806961B (en) * | 2014-12-30 | 2019-04-16 | 中核武汉核电运行技术股份有限公司 | A kind of elastic coupling device of ultrasonic examining probe |
| CN109752706B (en) * | 2017-11-02 | 2023-02-28 | 沈阳新松机器人自动化股份有限公司 | Sonar mechanism with adjustable |
| CN108724062B (en) * | 2018-06-07 | 2019-11-08 | 上海空间推进研究所 | Hold-down mechanism component |
| CN110487913B (en) * | 2019-08-12 | 2022-02-18 | 西北工业大学 | Clamp for ultrasonic transducer calibration device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11248687A (en) * | 1998-03-02 | 1999-09-17 | Mitsubishi Chemical Corp | Cylindrical body non-destructive inspection device |
| CN102486470A (en) * | 2010-12-02 | 2012-06-06 | 核动力运行研究所 | Nondestructive inspection ultrasonic probe universal joint pallet |
| CN202583133U (en) * | 2012-05-29 | 2012-12-05 | 武汉大学 | Clamp for ultrasonic through measuring probe for pipeline |
| JP2013113708A (en) * | 2011-11-29 | 2013-06-10 | Mitsubishi Heavy Ind Ltd | Inspection apparatus |
| CN203772810U (en) * | 2014-04-14 | 2014-08-13 | 浙江大学 | Probe clamp applied to ultrasonic non-destructive testing of wood |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7913564B2 (en) * | 2008-03-12 | 2011-03-29 | Risk Management Enterprises, Llc | Ultrasonic scanning device with a hybrid controller |
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2014
- 2014-04-14 CN CN201410148465.1A patent/CN103940912B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11248687A (en) * | 1998-03-02 | 1999-09-17 | Mitsubishi Chemical Corp | Cylindrical body non-destructive inspection device |
| CN102486470A (en) * | 2010-12-02 | 2012-06-06 | 核动力运行研究所 | Nondestructive inspection ultrasonic probe universal joint pallet |
| JP2013113708A (en) * | 2011-11-29 | 2013-06-10 | Mitsubishi Heavy Ind Ltd | Inspection apparatus |
| CN202583133U (en) * | 2012-05-29 | 2012-12-05 | 武汉大学 | Clamp for ultrasonic through measuring probe for pipeline |
| CN203772810U (en) * | 2014-04-14 | 2014-08-13 | 浙江大学 | Probe clamp applied to ultrasonic non-destructive testing of wood |
Non-Patent Citations (2)
| Title |
|---|
| An indirectly clamped capacitive micromachined ultrasonic transducer with a high electromechanical coupling factor;factorDong Kyun Kim et al;《Sensors and Actuators A》;20130902;第203卷;第82-91页 * |
| 管道复杂焊缝扫查器的研究与设计;常冬艳;《哈尔滨工程大学硕士论文》;20120630;全文 * |
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| CN103940912A (en) | 2014-07-23 |
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Granted publication date: 20160217 |