CN203837661U - An adjusting device for reflective mirrors in a displacement sensor - Google Patents
An adjusting device for reflective mirrors in a displacement sensor Download PDFInfo
- Publication number
- CN203837661U CN203837661U CN201420277656.3U CN201420277656U CN203837661U CN 203837661 U CN203837661 U CN 203837661U CN 201420277656 U CN201420277656 U CN 201420277656U CN 203837661 U CN203837661 U CN 203837661U
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- CN
- China
- Prior art keywords
- reflective mirror
- displacement transducer
- contiguous block
- positioning strip
- housing
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Abstract
The utility model provides an adjusting device for reflective mirrors in a displacement sensor, belongs to the machinery technical field, and helps to solve the problem that for a conventional displacement sensor, the adjustment light beams is inconvenient. According to the adjusting device for the reflective mirrors in the displacement sensor, a focusing offset displacement sensor comprises a housing body which is internally provided with a cavity. The housing body is internally provided with a laser for emitting laser beams. The housing body is further internally connected with the reflective mirrors. The laser beams emitted by the laser can be incident to a detected surface after being refracted through the reflective mirrors, the two reflective mirrors being the reflective mirror 1 and the reflective mirror 2. The reflective mirror 1 is fixedly connected in the housing body and is right opposite to the laser; and the reflective mirror 2 is adjacent to the reflective mirror 1. The adjusting device also comprises a guide rail, a connection block and a positioning bar. The displacement sensor with the adjusting device is convenient to adjust and high in positioning stability.
Description
Technical field
The utility model relates to the regulating device of reflective mirror in a kind of sensor, particularly displacement transducer.
Background technology
The advantages such as that the optical displacement sensor based on Laser Focusing skew has is highly sensitive, good stability, mechanism is succinct, dynamic range is large.
In displacement transducer, there is a laser instrument, it in use laser instrument determining positions the measuring accuracy of whole displacement transducer.
That is to say, displacement transducer used after a period of time, and the position of laser instrument may change, thereby affects measuring accuracy.In addition, for the same displacement transducer of different measured surfaces, can not be competent at.
China Patent Publication No. CN103624633A provides " a kind of micro-milling vibration precision measurement system ", and it comprises laser micro-displacement sensor, multiple degrees of freedom adjusting laser displacement sensor support, laser displacement controller, data collecting card and has the computing machine of PXI multifunctional controller.Have multiple degrees of freedom and regulate laser displacement sensor support to be arranged on micro-milling machine table, laser micro-displacement sensor is arranged on multiple degrees of freedom and regulates on laser displacement sensor support; Laser micro-displacement sensor regulates the position adjustments on laser displacement sensor support at multiple degrees of freedom, measures X, Y, Z either direction Vibration Condition; Laser micro-displacement sensor is connected with laser displacement controller, and laser displacement controller is connected with data collecting card, and data collecting card is arranged on computer-internal; By multiple degrees of freedom, regulate laser displacement sensor bracket adjustment laser micro-displacement sensor position that the hot spot of laser sensor output is dropped on electric main shaft fixture, regulate laser micro-displacement sensor and the distance of electric main shaft fixture in Z direction, make laser micro-displacement sensor can be accurate, stablize output displacement signal; Laser micro-displacement sensor gathers Relative Vibration signal between cutter and workpiece, by laser micro-displacement sensor controller, transfer electric signal to, by data collecting card, be converted to digital quantity and deliver to computing machine, computing machine is converted into displacement signal by digital quantity, by drawing displacement time domain and frequency curve, obtain Vibration Condition.
But multiple degrees of freedom regulates laser displacement sensor supporting structure complicated in above-mentioned patent, cause its whole sensor construction complicated, cost is higher.
Existing other displacement transducer also all exists similar problem.
Summary of the invention
The purpose of this utility model is the problems referred to above that exist for prior art, and a kind of regulating device that can reduce measuring error and can make reflective mirror in the light-beam position of focus bias displacement transducer displacement transducer easy to adjust is provided.
The purpose of this utility model can realize by following technical proposal: the regulating device of reflective mirror in a kind of displacement transducer, focus bias displacement transducer comprises that inside is the housing of cavity, in housing, there is the laser instrument for Emission Lasers light beam, in described housing, be also connected with reflective mirror, the laser beam of above-mentioned laser instrument transmitting can be incident to measured surface after reflective mirror refraction, it is characterized in that, the quantity of described reflective mirror is two: reflective mirror one and reflective mirror two, described light-emitting mirror one be connected in housing and with laser instrument over against, described light-emitting mirror two is adjacent with reflective mirror one, this device comprises guide rail, contiguous block and positioning strip, described guide rail is connected in housing, above-mentioned reflective mirror two is connected in contiguous block one side, the opposite side of described contiguous block is connected on guide rail and can be along guide rail translation, above-mentioned positioning strip is strip and is connected in housing inner side, described contiguous block bottom has pilot hole, described positioning strip and guide rail parallel and positioning strip are positioned at place, contiguous block bottom, in above-mentioned pilot hole, there is elastic component and keeper, on described positioning strip, along it, axially there are some recessed positioning recess, above-mentioned keeper part under the effect of elastic component is stretched out pilot hole and can be embedded any one positioning recess.
In the time of need to changing the light-beam position of laser instrument transmitting, apply external force and promote contiguous block, after the elastic force that overcomes elastic component, contiguous block is pushed, and is positioned at reflective mirror two on contiguous block along with together moving.
Stop applying after external force, under the elastic force effect of elastic component, keeper embeds positioning recess place again.The reflective mirror two being positioned on contiguous block is positioned again.That is to say, stop applying after external force, the reflective mirror two regulating is just repositioned in housing.
In above-mentioned displacement transducer, in the regulating device of reflective mirror, described elastic component is Compress Spring.
Compress Spring externally carries pressure resistance strength is provided.Compress Spring is generally the coiling of tinsel equal pitch and has fixing wire diameter.Compress Spring utilizes a plurality of open coils externally to carry pressure feed resistance forces.Namely, they push back to revolt external pressure.By it, can make keeper there is all the time the trend that embeds positioning recess place.
In above-mentioned displacement transducer, in the regulating device of reflective mirror, described keeper is the ball that is spherical shape, and the two ends of above-mentioned elastic component are pushed up respectively and are pressed on pilot hole end and ball.
Ball stress equalization, under the elastic force effect of elastic component, ball can be stable stretches out pilot hole.
In above-mentioned displacement transducer, in the regulating device of reflective mirror, described pilot hole port has the gear edge of protruding ringwise, and above-mentioned ball slightly larger in diameter is in gear along formed aperture, place.
By gear, along ball being blocked in pilot hole, avoid ball to be come off by pilot hole place.
In above-mentioned displacement transducer, in the regulating device of reflective mirror, on described contiguous block, along its moving direction, have 2-6 pilot holes, each described pilot hole place all has elastic component and keeper.
A plurality of keepers coordinate with a plurality of pilot holes, have improved position stability.
In above-mentioned displacement transducer in the regulating device of reflective mirror, on described positioning strip, along its axial some positioning recess, form a registration row one, on described positioning strip, there is the location row that at least two rows parallel, some pilot holes along its moving direction line spread on described contiguous block form a registration row two, and described location row's one quantity is identical with the quantity of the row of location two and displacement is corresponding.
More keeper matches with positioning recess, has further improved position stability.
In above-mentioned displacement transducer, in the regulating device of reflective mirror, described positioning strip is that plastic material and positioning strip are connected in housing by glue.
The housing of sensor is also plastic material, and because the material of positioning strip is also identical with it, therefore, the housing that material is identical and positioning strip can firmly link together by glue.
Compared with prior art, in this displacement transducer, the regulating device of reflective mirror is owing to just regulating the light-beam position of laser instrument by applying external force promotion contiguous block, and therefore, it is easy to adjust.And, after adjusting, under the elastic force effect of elastic component, can automatically locate, the regulating step that it located conveniently and simplified sensor, has very high practical value.
In addition, the reflective mirror mirror that just one side can be reflective, laser instrument is the exact instrument with complex mechanism, for adjusting laser instrument, to the position adjustment of reflective mirror, can not only reach the object that changes light-beam position, and it can also effectively avoid laser instrument because of the mobile effect that causes its damage.
Accompanying drawing explanation
Fig. 1 is the schematic diagram originally with the displacement transducer of the regulating device of reflective mirror in this displacement transducer.
Fig. 2 is the sectional structure schematic diagram of the regulating device of reflective mirror in this displacement transducer.
Fig. 3 is the plan structure schematic diagram of positioning strip in the regulating device of reflective mirror in this displacement transducer.
Fig. 4 be in the regulating device of reflective mirror in this displacement transducer contiguous block look up structural representation.
In figure, 1, housing; 2, laser instrument; 3, guide rail; 4, positioning strip; 4a, positioning recess; 5, contiguous block; 5a, pilot hole; 5a1, gear edge; 6, elastic component; 7, keeper; 8, reflective mirror one; 9, reflective mirror two.
Embodiment
As shown in Figure 1, focus bias displacement transducer comprises that inside is the housing 1 of cavity, has the laser instrument 2 for Emission Lasers light beam in housing 1.
In housing 1, be also connected with reflective mirror, the laser beam of laser instrument 2 transmittings can be incident to measured surface after reflective mirror refraction.In the present embodiment, the quantity of reflective mirror is two: reflective mirror 1 and reflective mirror 29.Light-emitting mirror 1 be connected in housing 1 and with laser instrument 2 over against, light-emitting mirror 29 is adjacent with reflective mirror 1.
As depicted in figs. 1 and 2, have guide rail 3 in housing 1, reflective mirror 29 is connected in contiguous block 5 one sides, and the opposite side of contiguous block 5 is connected on guide rail 3 and can be along guide rail 3 translations.
Housing 1 fixedly connected to the inner side and is the positioning strip 4 of strip, contiguous block 5 bottoms have pilot hole 5a, positioning strip 4 and positioning strip 4 parallel with guide rail 3 is positioned at contiguous block 5 places, bottoms, in pilot hole 5a, there is elastic component 6 and keeper 7, on positioning strip 4, along it, axially have some recessed positioning recess 4a, keeper 7 part under the effect of elastic component 6 is stretched out pilot hole 5a and can be embedded any one positioning recess 4a.
Elastic component 6 is Compress Spring.Keeper 7 is for being the ball of spherical shape, and the two ends of elastic component 6 are pushed up respectively and are pressed on pilot hole 5a end and ball.
Pilot hole 5a port has ringwise the gear that protrudes along 5a1, and ball slightly larger in diameter is in gear along formed aperture, 5a1 place.
In the present embodiment, on contiguous block 5, along its moving direction, have three pilot hole 5a, each pilot hole 5a place all has elastic component 6 and keeper 7.
As shown in Figure 3 and Figure 4, on positioning strip 4, along its six axial positioning recess 4a, form a registration row one, on positioning strip 4, there is the location row that at least two rows parallel.Three pilot hole 5a along its moving direction line spread on contiguous block 5 form a registration row two, and described location row's one quantity is two rows with location row two quantity, and location row one is corresponding with location row two position.
In the present embodiment, housing 1 is plastic material, and positioning strip 4 is also plastic material, and positioning strip 4 is connected in housing 1 by glue.
In the time of need to changing the light-beam position of laser instrument 2 transmitting, apply external force and promote contiguous block 5, after overcoming the elastic force of elastic component 6, in keeper 7 retraction pilot hole 5a, contiguous block 5 is along guide rail 3 translations, is positioned at reflective mirror 29 on contiguous block 5 along with together moving.
Stop applying after external force, under the elastic force effect of elastic component 6, keeper 7 embeds positioning recess 4a place again.The reflective mirror 29 being positioned on contiguous block 5 is positioned again.That is to say, stop applying after external force, the reflective mirror 29 regulating is just repositioned in housing 1.Certainly, now the light-beam position after reflective mirror 1 and reflective mirror 29 refractions has just changed.
Claims (7)
1. the regulating device of reflective mirror in a displacement transducer, focus bias displacement transducer comprises that inside is the housing of cavity (1), in housing (1), there is the laser instrument (2) for Emission Lasers light beam, described housing is also connected with reflective mirror in (1), the laser beam of above-mentioned laser instrument (2) transmitting can be incident to measured surface after reflective mirror refraction, it is characterized in that, the quantity of described reflective mirror is two: reflective mirror one (8) and reflective mirror two (9), described light-emitting mirror one (8) be connected in housing (1) and with laser instrument (2) over against, described light-emitting mirror two (9) is adjacent with reflective mirror one (8), this device comprises guide rail (3), contiguous block (5) and positioning strip (4), described guide rail (3) is connected in housing (1), above-mentioned reflective mirror two (9) is connected in contiguous block (5) one sides, the opposite side of described contiguous block (5) is connected in guide rail (3) above and can be along guide rail (3) translation, above-mentioned positioning strip (4) is strip and is connected in housing (1) inner side, described contiguous block (5) bottom has pilot hole (5a), described positioning strip (4) and positioning strip (4) parallel with guide rail (3) is positioned at place, contiguous block (5) bottom, in above-mentioned pilot hole (5a), there is elastic component (6) and keeper (7), described positioning strip (4) is upper axially has some recessed positioning recess (4a) along it, above-mentioned keeper (7) part under the effect of elastic component (6) is stretched out pilot hole (5a) and can be embedded any one positioning recess (4a).
2. the regulating device of reflective mirror in displacement transducer according to claim 1, is characterized in that, described elastic component (6) is Compress Spring.
3. the regulating device of reflective mirror in displacement transducer according to claim 2, it is characterized in that, described keeper (7) is for being the ball of spherical shape, and the two ends of above-mentioned elastic component (6) are pushed up respectively and are pressed on pilot hole (5a) end and ball.
4. the regulating device of reflective mirror in displacement transducer according to claim 3, it is characterized in that, described pilot hole (5a) port has the gear edge (5a1) of protruding ringwise, and above-mentioned ball slightly larger in diameter is located formed aperture in gear along (5a1).
5. the regulating device of reflective mirror in displacement transducer according to claim 1, it is characterized in that, described contiguous block (5) is upper has 2-6 pilot holes (5a) along its moving direction, and described each pilot hole (5a) locates all to have elastic component (6) and keeper (7).
6. the regulating device of reflective mirror in displacement transducer according to claim 5, it is characterized in that, described positioning strip (4) is upper forms a registration row one along its axial some positioning recess (4a), on described positioning strip (4), there is the location row that at least two rows parallel, the upper some pilot holes (5a) along its moving direction line spread of described contiguous block (5) form a registration row two, and described location row's one quantity is identical with the quantity of the row of location two and displacement is corresponding.
7. the regulating device of reflective mirror in displacement transducer according to claim 1, is characterized in that, described positioning strip (4) is connected in housing (1) by glue for plastic material and positioning strip (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420277656.3U CN203837661U (en) | 2014-05-27 | 2014-05-27 | An adjusting device for reflective mirrors in a displacement sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420277656.3U CN203837661U (en) | 2014-05-27 | 2014-05-27 | An adjusting device for reflective mirrors in a displacement sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203837661U true CN203837661U (en) | 2014-09-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420277656.3U Expired - Fee Related CN203837661U (en) | 2014-05-27 | 2014-05-27 | An adjusting device for reflective mirrors in a displacement sensor |
Country Status (1)
| Country | Link |
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| CN (1) | CN203837661U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105987664A (en) * | 2015-01-27 | 2016-10-05 | 中国铁道科学研究院铁道建筑研究所 | Device for accurately detecting abrasion of railway steel rail |
-
2014
- 2014-05-27 CN CN201420277656.3U patent/CN203837661U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105987664A (en) * | 2015-01-27 | 2016-10-05 | 中国铁道科学研究院铁道建筑研究所 | Device for accurately detecting abrasion of railway steel rail |
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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 |
Granted publication date: 20140917 Termination date: 20150527 |
|
| EXPY | Termination of patent right or utility model |