CN206057251U - A kind of double-layer coaxial screw hole detection device - Google Patents
A kind of double-layer coaxial screw hole detection device Download PDFInfo
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- CN206057251U CN206057251U CN201621087561.0U CN201621087561U CN206057251U CN 206057251 U CN206057251 U CN 206057251U CN 201621087561 U CN201621087561 U CN 201621087561U CN 206057251 U CN206057251 U CN 206057251U
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Abstract
The utility model discloses a kind of double-layer coaxial screw hole detection device, device includes upper boom, middle bar, lower beam, multiple eddy current probes, using the feeler lever of unique structure, inserting upper strata screw and lower floor's screw respectively carries out rotation scanning, by rotating the vortex scanning that scanning can complete double-deck screw twice, a screw defects detection difficult problem for double-deck screw workpiece is efficiently solved, detection efficiency is greatly improved.
Description
Art
The present invention relates to a kind of the cannot-harm-detection device, more particularly to a kind of double-layer coaxial screw hole detection device.
Background technology
The fastening structure of some large aircraft blades, using double-deck Screw hole structure, is to ensure that blade operation safety need are regular
Non-Destructive Testing is carried out to screw defect.At present, hole side, the inner wall defect of screw generally using eddy current detection method, are detected, but by
Then double-deck Screw hole structure, eddy current probe scanning difficulty are larger, and detection efficiency is extremely low.
The content of the invention
It is an object of the invention to overcome the deficiency of prior art, there is provided a kind of double-layer coaxial screw hole detection device, adopt
The feeler lever of unique structure, inserting upper strata screw and lower floor's screw respectively carries out rotation scanning, can be complete by rotating scanning twice
Into the vortex scanning of double-deck screw.
The technical solution adopted for the present invention to solve the technical problems is：A kind of double-layer coaxial screw hole detection device, including
Upper boom, middle bar, lower beam, multiple eddy current probes, it is characterised in that：The upper boom is cylinder, and its external diameter is more than tested spiral shell
The diameter in hole；The middle bar be cylinder, its external diameter be equal to tested screw diameter, the upper surface of middle bar is fixed on the bottom of upper boom
End face center；An eddy current probe, the lateral circle surface footpath of middle bar are fixed in part on upper boom bottom face around middle bar upper surface
To fixed string eddy current probe group, the eddy current probe group is rearranged by multiple eddy current probes；Under described
Bar is elastic rod, and the upper surface of lower beam is fixed on the bottom face of middle bar, and lower beam is outwards inclined centered on middle bar axis, under
Bar is equal to the spacing between double-deck screw perpendicular to middle bar bottom face direction length, and lower beam bottom face is centered on middle bar axis
Rotation interior diameter be equal to screw diameter；The bottom face of lower beam fixes an eddy current probe.Further, device includes
Upper boom, middle bar, multiple lower beams, multiple eddy current probes, the upper boom is cylinder, and its external diameter is straight more than tested screw
Footpath；The middle bar be cylinder, its external diameter be equal to tested screw diameter, the upper surface of middle bar is fixed in the bottom face of upper boom
The heart；Multiple eddy current probes are fixed in part on upper boom bottom face around middle bar upper surface, and the lateral circle surface of middle bar is radially fixed
Multiple row eddy current probe group, is rearranged by multiple eddy current probes per string eddy current probe group；Under the plurality of
Bar is elastic rod, and the upper surface of multiple lower beams is fixed on the bottom face of middle bar, and multiple lower beams are inclined centered on middle bar axis
Oblique outer, multiple lower beams are equal to the spacing between double-deck screw, multiple lower beam bottom faces perpendicular to middle bar bottom face direction length
Rotation interior diameter centered on middle bar axis is equal to the diameter of screw；The bottom face of each lower beam fixes one or more whirlpools
Stream detection probe.So in detection process, device rotates a low-angle, you can complete scanning.
A kind of double-layer coaxial screw detection method, using above-mentioned device, it is characterised in that：Device is inserted upper strata respectively
Screw and lower floor's screw carry out rotation scanning, by rotating the vortex scanning that scanning can complete double-deck screw twice, including such as
Lower step,
A. device is inserted from top to bottom in the screw of upper strata, on the upper boom bottom face in device, surrounds the portion of middle bar upper surface
Divide and be just close to the hole upper periphery of upper strata screw；Middle bar side side face in device is close to the inner surface of upper strata screw；Device
In lower beam pass through upper strata screw, the bottom face of lower beam is just close to the hole upper periphery of lower floor screw；
B. the rotary apparatuss centered on the axis of device, are fixed on upper boom bottom face around the part of middle bar upper surface
Eddy current probe scanning upper strata screw hole upper periphery；The eddy current probe group scanning being fixed on the lateral circle surface of bar
The inner surface of upper strata screw；It is fixed on the hole upper periphery of the eddy current probe scanning lower floor screw of lower beam bottom face；Device revolves
Circle, you can complete the hole upper periphery of upper strata screw, the inner surface of upper strata screw, the vortex of the hole upper periphery of lower floor's screw and sweep
Look into；
C. device is inserted from the bottom up in lower floor's screw, on the upper boom bottom face in device, surrounds the portion of middle bar upper surface
Point just it is close to the hole following peripheral of lower floor screw；Middle bar side side face in device is close to the inner surface of lower floor's screw；Device
In lower beam pass through lower floor's screw, the bottom face of lower beam is just close to the hole following peripheral of upper strata screw；
D. the rotary apparatuss centered on the axis of device, are fixed on upper boom bottom face around the part of middle bar upper surface
Eddy current probe scanning lower floor screw hole following peripheral；The eddy current probe group scanning being fixed on the lateral circle surface of bar
The inner surface of lower floor's screw；It is fixed on the hole following peripheral of the eddy current probe scanning upper strata screw of lower beam bottom face；Device revolves
Circle, you can complete the hole following peripheral of lower floor's screw, the inner surface of lower floor's screw, the vortex of the hole following peripheral of upper strata screw and sweep
Look into.
The invention has the beneficial effects as follows, a kind of double-layer coaxial screw hole detection device, using the feeler lever of unique structure, is inserted respectively
Entering upper strata screw and lower floor's screw carries out rotation scanning, by rotating the vortex scanning that scanning can complete double-deck screw twice,
A screw defects detection difficult problem for double-deck screw workpiece is efficiently solved, detection efficiency is greatly improved.
With reference to embodiments the present invention is described in further detail, but a kind of double-layer coaxial screw detection of the present invention
Device is not limited to embodiment.
Description of the drawings
The present invention is further described for middle embodiment below in conjunction with the accompanying drawings.
Fig. 1 is a kind of three dimensional structure diagram of double-layer coaxial screw hole detection device of the embodiment of the present invention one.
Fig. 2 is a kind of sectional view of double-layer coaxial screw hole detection device of the embodiment of the present invention one.
Fig. 3 is a kind of double-layer coaxial screw hole detection device and double-deck screw workpiece schematic diagram of the embodiment of the present invention one.
Fig. 4 is a kind of double-layer coaxial screw detection method schematic diagram of the embodiment of the present invention one.
Fig. 5 is a kind of three dimensional structure diagram of double-layer coaxial screw hole detection device of the embodiment of the present invention two.
In figure, 1. upper boom, 2. in bar, 3. lower beam, 4. eddy current probe, 40. eddy current probe groups, 5. upper strata spiral shell
Hole, 6. lower floor's screw.
Specific embodiment
Embodiment one, as shown in Figure 1, Figure 2, Figure 3, Figure 4, a kind of double-layer coaxial screw hole detection device, including upper boom 1, in
Bar 2, lower beam 3, multiple eddy current probes 4, it is characterised in that：The upper boom 1 is cylinder, and its external diameter is more than tested screw
Diameter；The middle bar 2 be cylinder, its external diameter be equal to tested screw diameter, the upper surface of middle bar 2 is fixed on the bottom of upper boom 1
End face center；An eddy current probe 4, the side week of middle bar 2 are fixed in part on 1 bottom face of upper boom around 2 upper surface of middle bar
The radially fixed string eddy current probe group 40 in face, the eddy current probe group 40 is by 4 arrangement group of multiple eddy current probes
Into；The lower beam 3 is elastic rod, and the upper surface of lower beam 3 is fixed on the bottom face of middle bar 2, and lower beam 3 with 2 axis of middle bar is
Centroclinal outside, lower beam 3 is equal to the spacing between double-deck screw, 3 bottom face of lower beam perpendicular to 2 bottom face direction length of middle bar
Rotation interior diameter centered on 2 axis of middle bar is equal to the diameter of screw；The bottom face of lower beam 3 is fixed an EDDY CURRENT and is visited
4.
A kind of double-layer coaxial screw detection method, using above-mentioned device, it is characterised in that：Device is inserted upper strata respectively
Screw 5 and lower floor's screw 6 carry out rotation scanning, by rotating the vortex scanning that scanning can complete double-deck screw twice, including
Following steps,
A. device is inserted from top to bottom in upper strata screw 5, on 1 bottom face of upper boom in device, surrounds 2 upper surface of middle bar
Part be just close to the hole upper periphery of upper strata screw 5；2 lateral circle surface of middle bar in device is tight with the inner surface of upper strata screw 5
Patch；Lower beam 3 in device passes through upper strata screw 5, and the bottom face of lower beam 3 is just close to the hole upper periphery of lower floor screw 6；
B. the rotary apparatuss centered on the axis of device, are fixed on 1 bottom face of upper boom around the portion of 2 upper surface of middle bar
The hole upper periphery of the 4 scanning upper strata screw 5 of eddy current probe for dividing；The eddy current probe being fixed on the lateral circle surface of bar 2
The inner surface of 40 scanning upper strata screws 5 of group；It is fixed on the hole of 4 scanning lower floor screw 6 of eddy current probe of 3 bottom face of lower beam
Periphery；Device rotates a circle, you can complete the hole upper periphery of upper strata screw 5, the inner surface of upper strata screw 5, the hole of lower floor's screw 6
The vortex scanning of upper periphery；
C. device is inserted from the bottom up in lower floor's screw 6, on 1 bottom face of upper boom in device, surrounds 2 upper surface of middle bar
Part be just close to the hole following peripheral of lower floor screw 6；2 lateral circle surface of middle bar in device is tight with the inner surface of lower floor screw 6
Patch；Lower beam 3 in device passes through lower floor's screw 6, the bottom face of lower beam 3 to be just close to the hole following peripheral of upper strata screw 5；
D. the rotary apparatuss centered on the axis of device, are fixed on 1 bottom face of upper boom around the portion of 2 upper surface of middle bar
The hole following peripheral of the 4 scanning lower floor screw 6 of eddy current probe for dividing；The eddy current probe being fixed on the lateral circle surface of bar 2
The inner surface of 40 scanning lower floor screws 6 of group；It is fixed under the hole of 4 scanning upper strata screw 5 of eddy current probe of 3 bottom face of lower beam
Periphery；Device rotates a circle, you can complete the hole following peripheral of lower floor's screw 6, the inner surface of lower floor's screw 6, the hole of upper strata screw 5
The vortex scanning of following peripheral.
Embodiment two, as shown in figure 5, a kind of double-layer coaxial screw hole detection device, further, device include upper boom 1, in
Bar 2, multiple lower beams 3, multiple eddy current probes 4, the upper boom 1 be cylinder, its external diameter more than tested screw diameter；Institute
Middle bar 2 is stated for cylinder, its external diameter is equal to the diameter of tested screw, and the upper surface of middle bar 2 is fixed in the bottom face of upper boom 1
The heart；Multiple eddy current probes 4 are fixed in part on 1 bottom face of upper boom around 2 upper surface of middle bar, and the lateral circle surface of middle bar 2 is radially
Fixed multiple row eddy current probe group 40, is rearranged by multiple eddy current probes 4 per string eddy current probe group 40；Institute
Multiple lower beams 3 are stated for elastic rod, the upper surface of multiple lower beams 3 is fixed on the bottom face of middle bar 2, and multiple lower beams 3 are with middle bar 2
Outwards incline centered on axis, multiple lower beams 3 are equal to the spacing between double-deck screw perpendicular to 2 bottom face direction length of middle bar,
Rotation interior diameter of 3 bottom face of multiple lower beams centered on 2 axis of middle bar is equal to the diameter of screw；The bottom of each lower beam 3
One or more eddy current probes 4 are fixed in face.
Above-described embodiment is only used for a kind of double-layer coaxial screw hole detection device for further illustrating the present invention, but the present invention is simultaneously
It is not limited to embodiment, any simple modification that every technical spirit according to the present invention is made to above example, equivalent become
Change and modification, each fall within the protection domain of technical solution of the present invention.
Claims (2)
1. a kind of double-layer coaxial screw hole detection device, including upper boom, middle bar, lower beam, multiple eddy current probes, its feature exist
In：The upper boom be cylinder, its external diameter more than tested screw diameter；The middle bar is cylinder, and its external diameter is equal to tested
The diameter of screw, the upper surface of middle bar are fixed on the bottom face center of upper boom；The portion of middle bar upper surface is surrounded on upper boom bottom face
Divide and fix an eddy current probe, the radially fixed string eddy current probe group of lateral circle surface of middle bar, the EDDY CURRENT are visited
Head group is rearranged by multiple eddy current probes；The lower beam is elastic rod, and the upper surface of lower beam is fixed on the bottom of middle bar
On face, lower beam is outwards inclined centered on middle bar axis, and lower beam is equal to double-deck screw perpendicular to middle bar bottom face direction length
Between spacing, lower beam bottom face centered on middle bar axis rotation interior diameter be equal to screw diameter；The bottom of lower beam
An eddy current probe is fixed in face.
2. a kind of double-layer coaxial screw hole detection device according to claim 1, it is characterised in that：Further, including upper
Bar, middle bar, multiple lower beams, multiple eddy current probes, the upper boom be cylinder, its external diameter more than tested screw diameter；
The middle bar be cylinder, its external diameter be equal to tested screw diameter, the upper surface of middle bar is fixed on the bottom face center of upper boom；
Multiple eddy current probes, the radially fixed multiple row of lateral circle surface of middle bar are fixed in part on upper boom bottom face around middle bar upper surface
Eddy current probe group, is rearranged by multiple eddy current probes per string eddy current probe group；The plurality of lower beam is
Elastic rod, the upper surface of multiple lower beams are fixed on the bottom face of middle bar, and multiple lower beams are tilted towards centered on middle bar axis
Outward, multiple lower beams are equal to the spacing between double-deck screw perpendicular to middle bar bottom face direction length, and multiple lower beam bottom faces are with
Rotation interior diameter centered on bar axis is equal to the diameter of screw；The bottom face of each lower beam fixes one or more vortex inspections
Probing head.
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| CN201621087561.0U CN206057251U (en) | 2016-09-29 | 2016-09-29 | A kind of double-layer coaxial screw hole detection device |
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| CN201621087561.0U CN206057251U (en) | 2016-09-29 | 2016-09-29 | A kind of double-layer coaxial screw hole detection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106324086A (en) * | 2016-09-29 | 2017-01-11 | 爱德森（厦门）电子有限公司 | Double-layer coaxial screw hole detection device and double-layer coaxial screw hole detection method |
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2016
- 2016-09-29 CN CN201621087561.0U patent/CN206057251U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106324086A (en) * | 2016-09-29 | 2017-01-11 | 爱德森（厦门）电子有限公司 | Double-layer coaxial screw hole detection device and double-layer coaxial screw hole detection method |
| CN106324086B (en) * | 2016-09-29 | 2023-04-07 | 爱德森（厦门）电子有限公司 | Double-layer coaxial screw hole detection method |
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