CN204565182U - A kind of drilling equipment of Blind Hole Technique for Measuring residual stress - Google Patents
A kind of drilling equipment of Blind Hole Technique for Measuring residual stress Download PDFInfo
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- CN204565182U CN204565182U CN201520255794.6U CN201520255794U CN204565182U CN 204565182 U CN204565182 U CN 204565182U CN 201520255794 U CN201520255794 U CN 201520255794U CN 204565182 U CN204565182 U CN 204565182U
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- residual stress
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Abstract
A drilling equipment for Blind Hole Technique for Measuring residual stress, comprises disk suction base, I-shaped bracket, back-electromagnetic force block, fairlead and drill; Described back-electromagnetic force block is positioned on the first horizontal support of I-shaped bracket; Described fairlead is fixed on the second horizontal support of I-shaped bracket, described alignment device is movably connected in the endoporus of fairlead, described drill comprises electromagnetic pressure block, drill bushing and drill bit, and described electromagnetic pressure block is fixed on the top of drill bushing, and described drill jig is held in drill bushing.The drilling equipment structure of Blind Hole Technique for Measuring residual stress of the present utility model is simple, easy to operate, time saving and energy saving, can reach the effect improving borehole accuracy, improve rate of penetration, when solving boring precision be difficult to ensure, the problem of afterburning difficulty.
Description
Technical field
The utility model relates to a kind of drilling equipment, particularly relates to a kind of drilling equipment of Blind Hole Technique for Measuring residual stress.
Background technology
In the mechanical technology processes such as welding, cutting, installation, often easily cause material generation plastic deformation, cause workpiece to there is residual stress.In workpiece military service process, the working stress that residual stress and external load produce superposes mutually, make workpiece that stresses re-distribution and secondary deformation will occur, residual stress not only may reduce rigidity and the stability of workpiece, and the fatigue life of structure and the ability of opposing stress corrosion may be badly influenced, thus affect the normal usage energy of workpiece.Therefore, the test of residual stress and impact evaluation seem particularly important.
Residual stress test technology starts from the thirties in 20th century, is developed so far and defines tens of kinds of measuring methods altogether.Main point mechanical means and the large class of physical method two.Mechanical means is also known as stress free method, general genus destructive testing, comprise in, the Blind Hole Method of slab surface stress measurement, and successively milling method, slitting method, Gunert cut milling annular groove method, bore shoulder hole method, extract plug method, the direct paster method of endoporus etc.Physical method is generally nondestructively measuring method, comprises the X-ray diffraction method for surface stress measurement, utilizes the method for magnetic of counter magnetostriction effect, and neutron diffraction method, supercritical ultrasonics technology, Electronic Speckle Pattern Interferometry etc.Wherein, Blind Hole Method have simple to operate, measure convenient, accuracy is higher, to features such as component damage are little, become a kind of conventional detection method measuring residual stress.
When adopting blind hole measuring residual stress, drilling equipment accurate positioning is the key ensureing certainty of measurement.Existing apparatus generally adopts microscope alignment, not only wastes time and energy, and there is certain artificial collimation error, and boring direction and component surface perpendicularity are often also difficult to ensure, directly have influence on the quality of boring and the precision of measurement.
Existing drilling equipment, adopts balancing weight to apply pressure to rig usually or operating personnel apply pressure directly to rig.When the hardness of material is larger, along with the increase of drilling depth, the resistance of drill bit rotational increases gradually, makes boring more difficult.Usual balancing weight is suitable only for holes vertically downward, is often difficult to the size of controlled pressure when exerting pressure directly to rig, and when pressure is too little, rate of penetration is often too slow, easily causes hole scattering, increase human error when pressure is too large, time-consuming.
Utility model content
The technical problems to be solved in the utility model overcomes the deficiencies in the prior art, provides a kind of exact focus, Constant load, ensures that boring continuously, reduces human error, improve the drilling equipment of borehole accuracy and drilling efficiency.
For solving the problems of the technologies described above, the technical scheme that the utility model proposes is: a kind of drilling equipment of Blind Hole Technique for Measuring residual stress, comprises disk suction base, I-shaped bracket, back-electromagnetic force block, fairlead and drill; Described back-electromagnetic force block is positioned on the first horizontal support of I-shaped bracket; Described fairlead is fixed on the second horizontal support of I-shaped bracket, described alignment device is movably connected in the endoporus of fairlead, described drill comprises electromagnetic pressure block, drill bushing and drill bit, and described electromagnetic pressure block is fixed on the top of drill bushing, and described drill jig is held in drill bushing.
The drilling equipment of above-mentioned Blind Hole Technique for Measuring residual stress, preferably, described special control device also comprises alignment device; Described alignment device is movably connected in the endoporus of fairlead; Described alignment device comprises alignment device drill bushing, clear glass, laser head and plane of reflection mirror; The two ends of described alignment device drill bushing are all fixedly connected with one block of clear glass, and described laser head is fixed on the bottom of alignment device drill bushing, and described plane of reflection mirror is positioned at the below of laser head.
The drilling equipment of above-mentioned Blind Hole Technique for Measuring residual stress, preferably, described first horizontal support is bolted in the vertical supports of I-shaped bracket by turning to.
The drilling equipment of above-mentioned Blind Hole Technique for Measuring residual stress, preferably, described second horizontal support is bolted in the vertical supports of I-shaped bracket by turning to.
Compared with prior art, the utility model has the advantage of: the electromagnetic control apparatus in the utility model can to drill bushing Constant load, ensure that boring continues, when closedown back-electromagnetic force block and electromagnetic pressure block switch, when making there is no repulsion between back-electromagnetic force block and electromagnetic pressure block, bolt can be turned to by adjustment, the distance between adjustment electromagnetism pressure counter-force block and electromagnetic pressure block, further control pressure between the two, reaches the effect increasing pressure.Meanwhile, force adjustment knob can carry out continuous control to electromagnetic force, along with the increase of drilling depth, can adjust electromagnetic pressure block and back-electromagnetic force block, the pressure between back-electromagnetic force block and electromagnetic pressure block is strengthened gradually.
Laser alignment device drill bushing in the utility model is different from microscope in the past, and by laser alignment drill center, convenient and swift adjustment fairlead shell horizontal level, guarantees that aligning drilling point robbed by brill, more directly perceived and can meet required precision; Conveniently adjust fairlead housing axis position and angle by the angle of laser beam incident line and plane of reflection mirror reflection ray, ensure that boring direction is vertical with component surface, guarantee drilling quality.
The continuous augmentor of Electromagnetic Control of the present utility model, fairlead adjusting device, structure is simple, easy to operate, time saving and energy saving, can reach the effect improving borehole accuracy, improve rate of penetration, when solving boring precision be difficult to ensure, the problem of afterburning difficulty.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model drilling equipment.
Fig. 2 is the structural representation of the utility model alignment device.
Fig. 3 is the structural representation of the utility model alignment device drill bushing.
Fig. 4 is the sectional structure schematic diagram of the utility model back-electromagnetic force block.
Fig. 5 is the sectional structure schematic diagram of the utility model electromagnetic pressure block.
Marginal data
1, disk suction base; 2, back-electromagnetic force block; 3, fairlead; 4, the first horizontal support; 5, the second horizontal support; 6, electromagnetic pressure block; 7, drill bushing; 8, drill bit; 9, alignment device drill bushing; 10, clear glass; 11, laser head; 12, plane of reflection mirror; 13, bolt is turned to; 14, vertical supports; 15, eccentric bolt.
Detailed description of the invention
For the ease of understanding the utility model, hereafter will do to describe more comprehensively, meticulously to the utility model in conjunction with Figure of description and preferred embodiment, but protection domain of the present utility model is not limited to following specific embodiment.
It should be noted that, when a certain element is described on " be fixed on, be fixed in, be connected to or be communicated in " another element, it can be directly fixing, affixed, connect or be communicated with on another element, also can be by other intermediate connectors indirectly fixing, affixed, connection or connection on another element.
Unless otherwise defined, hereinafter used all technical terms are identical with the implication that those skilled in the art understand usually.The object of technical term used herein just in order to describe specific embodiment is not be intended to limit protection domain of the present utility model.
Embodiment
The drilling equipment of a kind of Blind Hole Technique for Measuring residual stress as shown in Fig. 1 ~ Fig. 5, comprises disk suction base 1, I-shaped bracket, back-electromagnetic force block 2, fairlead 3 and drill; Back-electromagnetic force block 2 is positioned on the first horizontal support 4 of I-shaped bracket; Fairlead 3 is fixed on the second horizontal support 5 of I-shaped bracket, alignment device is movably connected in the endoporus of fairlead 3, drill comprises electromagnetic pressure block 6, drill bushing 7 and drill bit 8, and electromagnetic pressure block 6 is fixed on the top of drill bushing 7, and drill bit 8 is held in drill bushing 7.In the present embodiment, the first horizontal support 4 is fixed in the vertical supports 14 of I-shaped bracket by turning to bolt 13.Second horizontal support 5 is fixed in the vertical supports 14 of I-shaped bracket by turning to bolt 13.
Drilling equipment also comprises alignment device; Alignment device is movably connected in the endoporus of fairlead 3; Alignment device comprises alignment device drill bushing 9, clear glass 10, laser head 11 and plane of reflection mirror 12; The two ends of alignment device drill bushing 9 are all fixedly connected with one block of clear glass 10, and laser head 11 is fixed on the bottom of alignment device drill bushing 9, and plane of reflection mirror 12 is positioned at the below of laser head 11.
In the present embodiment, plane of reflection mirror 12 is of a size of 1.4 times of corresponding strain rosette size, and bottom plane of reflection mirror 12, surrounding is fixed with 0.2 times of width magnet, be adsorbed in strain rosette surrounding, adjustment plane of reflection mirror 12 position, makes it just cover strain rosette, and corresponding with strain rosette bore position.
In the present embodiment, first alignment device drill bushing 9 is put in the endoporus of fairlead 3, open laser head 11 switch, rotate fairlead 3 regulate fairlead 3 position by eccentric adjustment bolt 15, the hot spot reflected through plane of reflection mirror 12 by the light inciding drill center is moved to center gradually from clear glass 10 edge, guarantees that fairlead 3 is vertical with surface of the work, tighten eccentric bolt 15, and the second horizontal support 5 is locked, take out alignment device.Then the drill bushing 7 clipping drill bit 8 is put in the endoporus of fairlead 3, between drill bushing 7 and fairlead 3, places respective bore Height Adjustment pad, drill bit 8 is pushed up strain rosette to determine the clamping length of drill bit, then tighten, drill bit 8 is clamped.Open electric power switch, making to rob to bore utilizes the self gravitation of drill bushing 7 to get out anchor point, distance between adjustment back-electromagnetic force block 2 and electromagnetic pressure block 6, open the switch of back-electromagnetic force block 2 and electromagnetic pressure block 6 simultaneously, and regulate force adjustment knob plus-pressure, after half an hour, continue to regulate force adjustment knob afterburning, after half an hour, continue to regulate force adjustment knob afterburning, until it is complete to hole.
Claims (4)
1. a drilling equipment for Blind Hole Technique for Measuring residual stress, is characterized in that: comprise disk suction base (1), I-shaped bracket, back-electromagnetic force block (2), fairlead (3) and drill; Described back-electromagnetic force block (2) is positioned on first horizontal support (4) of I-shaped bracket; Described fairlead (3) is fixed on second horizontal support (5) of I-shaped bracket, alignment device is movably connected in the endoporus of fairlead (3), described drill comprises electromagnetic pressure block (6), drill bushing (7) and drill bit (8), described electromagnetic pressure block (6) is fixed on the top of drill bushing (7), and described drill bit (8) is held in drill bushing (7).
2. the drilling equipment of Blind Hole Technique for Measuring residual stress according to claim 1, is characterized in that: described drilling equipment also comprises alignment device; Described alignment device is movably connected in the endoporus of fairlead (3); Described alignment device comprises alignment device drill bushing (9), clear glass (10), laser head (11) and plane of reflection mirror (12); The two ends of described alignment device drill bushing (9) are all fixedly connected with one piece of clear glass (10), and described laser head (11) is fixed on the bottom of alignment device drill bushing (9), and described plane of reflection mirror (12) is positioned at the below of laser head (11).
3. the drilling equipment of Blind Hole Technique for Measuring residual stress according to claim 1 and 2, is characterized in that: described first horizontal support (4) is fixed in the vertical supports (14) of I-shaped bracket by turning to bolt (13).
4. the drilling equipment of Blind Hole Technique for Measuring residual stress according to claim 3, is characterized in that: described second horizontal support (5) is fixed in the vertical supports (14) of I-shaped bracket by turning to bolt (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520255794.6U CN204565182U (en) | 2015-04-24 | 2015-04-24 | A kind of drilling equipment of Blind Hole Technique for Measuring residual stress |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520255794.6U CN204565182U (en) | 2015-04-24 | 2015-04-24 | A kind of drilling equipment of Blind Hole Technique for Measuring residual stress |
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| CN204565182U true CN204565182U (en) | 2015-08-19 |
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| CN201520255794.6U Expired - Fee Related CN204565182U (en) | 2015-04-24 | 2015-04-24 | A kind of drilling equipment of Blind Hole Technique for Measuring residual stress |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105397134A (en) * | 2015-06-19 | 2016-03-16 | 中南大学 | Drilling device for measuring residual stress through blind hole method |
| TWI580939B (en) * | 2015-12-09 | 2017-05-01 | Metal Ind Res And Dev Centre | Residual stress detection method for hard and brittle materials |
| CN106626113A (en) * | 2016-12-26 | 2017-05-10 | 重庆比阳产品设计有限公司 | Drilling device for clay model |
| CN107121525A (en) * | 2017-04-06 | 2017-09-01 | 北京环境特性研究所 | A kind of fitting device for being used to place plate of material |
| CN107378022A (en) * | 2017-09-14 | 2017-11-24 | 中国科学院宁波材料技术与工程研究所 | A kind of drilling equipment for Blind Hole Method detection residual stress |
| CN108168755A (en) * | 2017-12-08 | 2018-06-15 | 燕山大学 | A kind of detection inside pipe wall residual stress drilling equipment and method |
| CN108188834A (en) * | 2018-02-27 | 2018-06-22 | 南苗苗 | A kind of stabilization mold puncher with detection function |
-
2015
- 2015-04-24 CN CN201520255794.6U patent/CN204565182U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105397134A (en) * | 2015-06-19 | 2016-03-16 | 中南大学 | Drilling device for measuring residual stress through blind hole method |
| TWI580939B (en) * | 2015-12-09 | 2017-05-01 | Metal Ind Res And Dev Centre | Residual stress detection method for hard and brittle materials |
| CN106626113A (en) * | 2016-12-26 | 2017-05-10 | 重庆比阳产品设计有限公司 | Drilling device for clay model |
| CN106626113B (en) * | 2016-12-26 | 2018-03-20 | 重庆比阳产品设计有限公司 | A kind of plasticine model drilling equipment |
| CN107121525A (en) * | 2017-04-06 | 2017-09-01 | 北京环境特性研究所 | A kind of fitting device for being used to place plate of material |
| CN107378022A (en) * | 2017-09-14 | 2017-11-24 | 中国科学院宁波材料技术与工程研究所 | A kind of drilling equipment for Blind Hole Method detection residual stress |
| CN108168755A (en) * | 2017-12-08 | 2018-06-15 | 燕山大学 | A kind of detection inside pipe wall residual stress drilling equipment and method |
| CN108168755B (en) * | 2017-12-08 | 2019-11-01 | 燕山大学 | A kind of detection inside pipe wall residual stress drilling equipment and method |
| CN108188834A (en) * | 2018-02-27 | 2018-06-22 | 南苗苗 | A kind of stabilization mold puncher with detection function |
| CN108188834B (en) * | 2018-02-27 | 2019-12-24 | 南苗苗 | Stable mould puncher with detect function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150819 Termination date: 20180424 |