CN204374097U - A kind of laser diffraction measuring instrument device of bearing roller surface imperfection - Google Patents
A kind of laser diffraction measuring instrument device of bearing roller surface imperfection Download PDFInfo
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- CN204374097U CN204374097U CN201520061309.1U CN201520061309U CN204374097U CN 204374097 U CN204374097 U CN 204374097U CN 201520061309 U CN201520061309 U CN 201520061309U CN 204374097 U CN204374097 U CN 204374097U
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Abstract
The utility model relates to a kind of laser diffraction measuring instrument device of bearing roller surface imperfection, comprising one can the lifter plate of vertically oscilaltion, described lifter plate is provided with one for placing the universal stage of roller, the flat board of band circular cone through hole is provided with directly over described lifter plate, described circular cone through hole is positioned at directly over universal stage, the aperture of this circular cone through hole is less than roller, the top of described flat board is provided with the telescopic spring bar for contact roller upper surface, described flat board is respectively arranged with column at the left and right sides of circular cone through hole, described column is provided with chute, the edge of a knife leveling ruler that can move left and right along chute is provided with in described chute.The utility model proposes a set of new location, clamping, whirligig, utilize elastic force edge of a knife leveling ruler to be pressed on bearing roller surface simultaneously and form the spacing that slit realizes slit easily and control, ensure that the quality of laser diffraction stripe pattern; It is a kind of efficient, easy to operate, high-precision bearing roller surface quality detection device.
Description
Technical field
The utility model relates to a kind of laser diffraction measuring instrument device of bearing roller surface imperfection.
Background technology
Bearing is in mechanical transmission course, play parts that are fixing and reduction load friction factor.To the precision of machine and have material impact serviceable life.Therefore, the raw manufacturer of bearing is absolutely necessary for the measurement of the quality of bearing roller surface working.
The detection of the suface processing quality of bearing roller is directed to without special detection technique in existing production practices, majority still adopts visual method, veteran skilled worker is relied on to identify bearing roller one by one with eyes, this method is not only expensive, efficiency is low but also there is the factor of human error, and effect is undesirable.
Laser diffraction measurement technology utilizes laser brightness high, good directionality, the feature such as the good and coherence of monochromaticity is good, adopt non-cpntact measurement and indirect measurement method, the fluctuation of trickle slot distances can be converted into the spacing change of obvious striped according to Fraunhofer diffraction principle, can be used for measuring atomic little Surface Flaw.Existing laser diffraction measuring instrument device cannot carry out the measurement of 360 ° to the whole outside surface of workpiece, complicated operation, can not be used for Practical Project simultaneously.Also blank is at present to the 360 ° of laser diffraction measuring instrument devices that carry out of bearing roller surface imperfection.
According to fraunhofer Slit Diffraction, when laser passes through by the slit formed between roller bearing surface and edge of a knife leveling ruler knife edge (slit width is D), accept the light and dark diffraction fringe of screen display at two-dimensional CCD, between the distance L that fringe spacing d and slit width D, laser wavelength lambda, slit and acceptance are shielded, meet relation d=L λ/D.Measure separation of diffraction stripe d, just instead can release slit width D.
Summary of the invention
The utility model makes improvement for above-mentioned prior art Problems existing, namely technical problem to be solved in the utility model is to provide a kind of laser diffraction measuring instrument device of bearing roller surface imperfection, propose a set of new location, clamping, whirligig, utilize elastic force edge of a knife leveling ruler to be pressed on bearing roller surface simultaneously and form the spacing control that slit realizes slit easily, ensure that the quality of laser diffraction stripe pattern; It is a kind of efficient, easy to operate, high-precision bearing roller surface quality detection device.
In order to solve the problems of the technologies described above, a kind of technical scheme of the present utility model is: a kind of laser diffraction measuring instrument device of bearing roller surface imperfection, comprising one can the lifter plate of vertically oscilaltion, described lifter plate is provided with one for placing the universal stage of roller, the flat board of band circular cone through hole is provided with directly over described lifter plate, described circular cone through hole is positioned at directly over universal stage, the aperture of this circular cone through hole is less than roller, the top of described flat board is provided with the telescopic spring bar for contact roller upper surface, described flat board is respectively arranged with column on the left and right sides of circular cone through hole, described column is provided with chute, the edge of a knife leveling ruler that can move left and right along chute is provided with in described chute, the end face contact of described edge of a knife leveling ruler is on roller sidewall, this end face is provided with multiple projection, the rear side of described edge of a knife leveling ruler is hinged with the second telescopic spring bar, the two ends of described flat board are all hinged with stock, the described other end of the second telescopic spring bar and the upper end of stock are hinged, the two ends of described lifter plate are provided with stroke groove, the lower end of described stock is horizontally slipped in stroke groove by a roller bearing, during to make lifter plate oscilaltion, stock promotes edge of a knife leveling ruler contact on the sidewall of roller, lifter plate drives roller rising contact to live telescopic spring bar simultaneously, described flat board is respectively arranged with laser instrument in the side, front and back of circular cone through hole and two-dimensional CCD accepts screen.
Further, the protruding alternative arrangement on described two edge of a knife leveling rulers.
Further, be provided with collimating mirror between described laser instrument and roller, the laser sent to make laser instrument is irradiated on the slit of roller both sides after the collimation of collimating mirror.
Further, immediately below described lifter plate, be provided with seat board, described seat board be provided with the elevating mechanism ordering about lifter plate oscilaltion; Described elevating mechanism can be Worm-gear type elevating mechanism, hydraulic cylinder, scissors fork elevating mechanism etc.
Further, the left and right sides of described flat board is also respectively arranged with the support column for supporting and guide the second telescopic spring bar, described support column is provided with the through hole allowing the second telescopic spring bar pass through.
Compared with prior art, the utility model has following beneficial effect: this device passes through on the left and right sidewall of the bearing roller of a uniform rotation, arrange edge of a knife leveling ruler, side, side, front and back arranges laser instrument and two-dimensional CCD accepts screen, make to form slit between the end face of edge of a knife leveling ruler and roller sidewall, use fraunhofer Slit Diffraction, judge roller surface defect level with the data obtained; Efficiently, easy to operate, precision is high, is applicable to industrialized mass.
Below in conjunction with the drawings and specific embodiments, the utility model is described in more detail.
Accompanying drawing explanation
Fig. 1 is the organigram of the utility model embodiment.
Fig. 2 is the principle schematic of the utility model embodiment.
Fig. 3 is the organigram of roller and edge of a knife leveling ruler in the utility model embodiment.
Fig. 4 is that in the utility model embodiment, two-dimensional CCD accepts the diffraction fringe image on screen.
In figure: 1-roller, 2-seat board, 21-motor, 22-connecting rod lifting mechanism, 3-lifter plate, 31-stroke groove, 32-universal stage, 4-is dull and stereotyped, 41-circular cone through hole, 42-column, 43-support column, 5-edge of a knife leveling ruler, 51-is protruding, 6-telescopic spring bar, 7-second telescopic spring bar, 8-stock, 9-laser instrument, 10-collimating mirror, 11-two-dimensional CCD accepts screen, the width of D-slit, L-slit and the distance accepting to shield.
Embodiment
Embodiment one: as shown in Fig. 1 ~ 3, a kind of laser diffraction measuring instrument device of bearing roller surface imperfection, comprising one can the lifter plate 3 of vertically oscilaltion, described lifter plate 3 is provided with one for placing the universal stage 32 of roller 1, the flat board 4 of band circular cone through hole 41 is provided with directly over described lifter plate 3, described circular cone through hole 41 is positioned at directly over universal stage 32, the aperture of this circular cone through hole 41 is less than roller 1, the described top of dull and stereotyped 4 is provided with the telescopic spring bar 6 for contact roller 1 upper surface, described dull and stereotyped 4 are respectively arranged with column 42 on the left and right sides of circular cone through hole 41, described column 42 is provided with chute, the edge of a knife leveling ruler 5 that can move left and right along chute is provided with in described chute, the end face contact of described edge of a knife leveling ruler 5 is on roller 1 sidewall, this end face is provided with multiple protruding 51, the rear side of described edge of a knife leveling ruler 5 is hinged with the second telescopic spring bar 7, the described two ends of dull and stereotyped 4 are all hinged with stock 8, the described other end of the second telescopic spring bar 7 and the upper end of stock 8 are hinged, the two ends of described lifter plate 3 are provided with stroke groove 31, the lower end of described stock 8 is horizontally slipped in stroke groove 31 by a roller bearing, during to make lifter plate 3 oscilaltion, stock 8 promotes projection 51 contact of edge of a knife leveling ruler on the sidewall of roller 1, lifter plate 3 drives roller rising contact to live telescopic spring bar 6 simultaneously, described dull and stereotyped 4 are respectively arranged with laser instrument 9 in the side, front and back of circular cone through hole 41 and two-dimensional CCD accepts screen 11.Slit and the distance L accepting to shield.
In the present embodiment, projection 51 alternative arrangement on described two edge of a knife leveling rulers, one of them edge of a knife leveling ruler is provided with two projections, another is provided with three projections.
In the present embodiment, be provided with collimating mirror 10 between described laser instrument 9 and roller 1, the laser sent to make laser instrument 9 is irradiated on the slit of roller both sides after the collimation of collimating mirror 10.
In the present embodiment, seat board 2 is provided with immediately below described lifter plate 3, described seat board 2 is provided with the connecting rod lifting mechanism 22 ordering about lifter plate 3 oscilaltion, this connecting rod lifting mechanism 22 comprises two middle parts and is hinged and the connecting rod intersected, the upper end of two connecting rods is all hinged on bottom lifter plate, and wherein the lower end of an elevating lever is hinged on seat board, and the lower end of another root elevating lever is connected with a motor 21, this connecting rod of this driven by motor moves, and then realizes the lifting of lifter plate.
In the present embodiment, the described left and right sides of dull and stereotyped 4 is also respectively arranged with the support column 43 for supporting and guide the second telescopic spring bar 7, described support column is provided with the through hole allowing the second telescopic spring bar 7 pass through.
When using this device, first bearing roller 1 is placed in the circular cone through hole 41 on flat board and positions, open motor 21, motor 21 orders about lifter plate 3 by connecting rod lifting mechanism 22 and rises, universal stage 32 on lifter plate 3 by roller 1 jack-up until roller upper end contact is bottom telescopic spring bar 6, the connecting rod 8 at dull and stereotyped 4 two ends is under the stroke groove 31 of lifter plate acts on simultaneously, drive the second telescopic spring bar 7, and then (projection 51 on edge of a knife leveling ruler makes the end face of edge of a knife leveling ruler and roller sidewall form slit on roller sidewall to promote the end face contact of edge of a knife leveling ruler, this slit width is D, and measure slit and the distance L accepting to shield), then universal stage 32 uniform rotation roller 1 is opened, open laser instrument 9 again, the laser that laser instrument 9 sends is irradiated on the slit of roller both sides after the collimation of collimating mirror 10, and accept screen 11 at two-dimensional CCD and show light and dark diffraction fringe, as shown in Figure 4 (namely middle most bright fringes both sides light and shade striped is the diffraction image of slit), by computing machine timing acquiring and record two-dimensional CCD accept screen on diffraction fringe image information, the corresponding two-dimensional CCD of diffraction image of each point of slit accepts a relative line of the upper horizontal direction of screen, according to fraunhofer Slit Diffraction d=λ L/D, employing analysis software goes out the fringe spacing d on diffraction image on every bar horizontal line, the slit width D1 of anti-its correspondence of release, obtain the gap size of diverse location on slit, by the slit width D comparing D1 and measure in advance, which judge to occur defect in position, the surface of bearing, and the size of defect, and then judge roller surface defect level.
The foregoing is only preferred embodiment of the present utility model, all equalizations done according to the utility model claim change and modify, and all should belong to covering scope of the present utility model.
Claims (5)
1. the laser diffraction measuring instrument device of a bearing roller surface imperfection, it is characterized in that: comprising one can the lifter plate of vertically oscilaltion, described lifter plate is provided with one for placing the universal stage of roller, the flat board of band circular cone through hole is provided with directly over described lifter plate, described circular cone through hole is positioned at directly over universal stage, the aperture of this circular cone through hole is less than roller, the top of described flat board is provided with the telescopic spring bar for contact roller upper surface, described flat board is respectively arranged with column on the left and right sides of circular cone through hole, described column is provided with chute, the edge of a knife leveling ruler that can move left and right along chute is provided with in described chute, the end face contact of described edge of a knife leveling ruler is on roller sidewall, this end face is provided with multiple projection, the rear side of described edge of a knife leveling ruler is hinged with the second telescopic spring bar, the two ends of described flat board are all hinged with stock, the described other end of the second telescopic spring bar and the upper end of stock are hinged, the two ends of described lifter plate are provided with stroke groove, the lower end of described stock is horizontally slipped in stroke groove by a roller bearing, during to make lifter plate oscilaltion, stock promotes edge of a knife leveling ruler contact on the sidewall of roller, lifter plate drives roller rising contact to live telescopic spring bar simultaneously, described flat board is respectively arranged with laser instrument in the side, front and back of circular cone through hole and two-dimensional CCD accepts screen.
2. the laser diffraction measuring instrument device of bearing roller surface imperfection according to claim 1, is characterized in that: the protruding alternative arrangement on described two edge of a knife leveling rulers.
3. the laser diffraction measuring instrument device of bearing roller surface imperfection according to claim 1, it is characterized in that: be provided with collimating mirror between described laser instrument and roller, the laser sent to make laser instrument is irradiated on the slit of roller both sides after the collimation of collimating mirror.
4. the laser diffraction measuring instrument device of bearing roller surface imperfection according to claim 1, is characterized in that: be provided with seat board immediately below described lifter plate, described seat board is provided with the elevating mechanism ordering about lifter plate oscilaltion.
5. the laser diffraction measuring instrument device of bearing roller surface imperfection according to claim 1, it is characterized in that: the left and right sides of described flat board is also respectively arranged with the support column for supporting and guide the second telescopic spring bar, described support column is provided with the through hole allowing the second telescopic spring bar pass through.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520061309.1U CN204374097U (en) | 2015-01-29 | 2015-01-29 | A kind of laser diffraction measuring instrument device of bearing roller surface imperfection |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520061309.1U CN204374097U (en) | 2015-01-29 | 2015-01-29 | A kind of laser diffraction measuring instrument device of bearing roller surface imperfection |
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| CN204374097U true CN204374097U (en) | 2015-06-03 |
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| CN201520061309.1U Active CN204374097U (en) | 2015-01-29 | 2015-01-29 | A kind of laser diffraction measuring instrument device of bearing roller surface imperfection |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104535585A (en) * | 2015-01-29 | 2015-04-22 | 福州大学 | Laser diffraction measuring instrument for surface defects of bearing roller and method of laser diffraction measuring instrument |
| CN108346595A (en) * | 2017-01-25 | 2018-07-31 | 上海新昇半导体科技有限公司 | Macroscopical cut length-measuring appliance |
-
2015
- 2015-01-29 CN CN201520061309.1U patent/CN204374097U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104535585A (en) * | 2015-01-29 | 2015-04-22 | 福州大学 | Laser diffraction measuring instrument for surface defects of bearing roller and method of laser diffraction measuring instrument |
| CN104535585B (en) * | 2015-01-29 | 2017-02-22 | 福州大学 | Laser diffraction measuring instrument for surface defects of bearing roller and method of laser diffraction measuring instrument |
| CN108346595A (en) * | 2017-01-25 | 2018-07-31 | 上海新昇半导体科技有限公司 | Macroscopical cut length-measuring appliance |
| CN108346595B (en) * | 2017-01-25 | 2020-08-18 | 上海新昇半导体科技有限公司 | Macroscopic scratch length measuring device |
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