CN202599824U - Multi-optical-path positioning device for micro-spectrophotometer - Google Patents
Multi-optical-path positioning device for micro-spectrophotometer Download PDFInfo
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- CN202599824U CN202599824U CN 201220168624 CN201220168624U CN202599824U CN 202599824 U CN202599824 U CN 202599824U CN 201220168624 CN201220168624 CN 201220168624 CN 201220168624 U CN201220168624 U CN 201220168624U CN 202599824 U CN202599824 U CN 202599824U
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- slide block
- detection arm
- block bearing
- cam
- locating device
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Abstract
The utility model provides a multi-optical-path positioning device for a micro-spectrophotometer. The multi-optical-path positioning device for the micro-spectrophotometer comprises a detection platform, optical fiber bases, positioning devices, cams and a motor, and is characterized in that the detection platform consists of a lower detection arm and an upper detection arm which is arranged on the lower detection arm through a hinge, one optical fiber base is disposed at one end of each detection arm, two or more than two positioning devices are fixed below the lower detection arm, a plurality of cams are arranged below slide block support seats of the positioning devices in corresponding mode, and the cams are disposed on a rotating shaft of the motor. When the motor rotates, the cams respectively and sequentially eject the slide block support seats of the positioning devices to fixed positions, and ejector rods on the slide block support seats eject the upper detection arm through positioning screws of the upper detection arm so as to change the distance between the optical fiber bases on the upper detection arm and the lower detection arm and achieve positioning of multiple optical paths. The multi-optical-path positioning device for the micro-spectrophotometer has the advantages of being capable of accurately positioning multiple optical paths and improving accuracy and repeatability of measurement of a spectrophotometer.
Description
Technical field
The utility model relates to a kind of locating device, especially relates to the light path locating device of micro-spectrophotometer.
Background technology
Advantages such as micro-spectrophotometer is few because of its amount of samples, need not cuvette, and the measuring samples concentration range is wide, and is easy to use once release, just receive numerous clients' approval and welcome very soon.This technology is to utilize the surface tension of micro liquid between the optical fiber pedestal of two close, to form light-path, and the distance between two optical fiber pedestals is exactly a light path.By Lambert-Beer's law A=ε bc, when absorbance was constant, concentration c and light path b were inversely proportional to, and the absorbance scope difference that can survey between the instrument is little, and when light path b was very little, instrument can directly be measured enriched sample.
At present, the ultramicrospectrophotometer that occurs on the market generally is monochromatic light journey or two light paths, and the instrument of monochromatic light journey has only a fixing light path, the sample concentration narrow range of energy measurement; The instrument of two light paths is when measuring; Can switch automatically through solenoid valve between two light paths; The repeatability of location and accuracy be comparative maturity all, enlarged the measurement range of sample concentration, but concentration range is wide not enough; And two light path measurement range junctions, the measurement of concetration linearity is good inadequately.
The micro-spectrophotometer that has occurred three light paths recently again carries out three light paths location through linear stepping motor; Advantage is further to have enlarged the measurement of concetration scope, and three light path measurement range junctions, the measurement of concetration linearity is fine; Shortcoming be linear stepping motor apart from control aspect out of true, and the time grown motor wearing and tearing and also can bring error, the accuracy that causes measuring is not high, repeatability is bad.
Summary of the invention
The purpose of the utility model is to overcome the deficiency of prior art, and a kind of many light paths locating device of micro-spectrophotometer is provided, and can accurately locate a plurality of light paths, and reduces the error brought because of frictional dissipation between the parts.
The technical scheme that the utility model adopts is: comprise monitor station, optical fiber pedestal, locating device, cam and motor, it is characterized in that: monitor station is made up of following detection arm and last detection arm, and last detection arm is installed in down on the detection arm with the hinge form; One end of two detection arm is equipped with an optical fiber pedestal respectively; Following detection arm below is fixed with two or more locating devices, and said locating device is made up of fixed mount, guide rail, slide block, slide block bearing, positioning baffle and dog screw, and guide rail is installed on the fixed mount; The slide block bearing is fixed on the slide block and can moves along guide rail; Positioning baffle is located at the top of said slide block bearing, and dog screw is located at the below of said slide block bearing, and said slide block bearing is provided with push rod; Push rod on the said a plurality of locating device a plurality of dog screws with last detection arm respectively is corresponding up and down; The slide block bearing below of said each locating device is respectively equipped with a cam, and said each cam is installed on the machine shaft, when motor rotates; Each cam respectively with the slide block bearing of each locating device jack-up successively to the fixed position; Push rod on each slide block bearing will be gone up detection arm jack-up through each dog screw of last detection arm, thereby change up and down the distance between the optical fiber pedestal on two detection arm, realize a plurality of light paths location.
The slide block bearing of said locating device is provided with a moving member; Spring also is housed between slide block bearing and moving member; Spring keeps certain stroke pressing following moving member all the time, and pulley is equipped with in the moving member bottom, and cam contacts with pulley moving member is moved during work; Moving member moves the slide block bearing through spring pressure again, can compensate the error that causes the parts loss to cause because of long-time friction between cam and the pulley like this.
A plurality of cams of the slide block bearing below of said a plurality of locating devices; Can be installed on a plurality of machine shafts respectively; Control the rotation order of cam respectively by a plurality of motors, also can together be installed on the machine shaft, only in proper order with the rotation of an Electric Machine Control cam.
The principle of work of the utility model is: before motor rotates; The slide block bearing of each locating device is by the fixing position of following dog screw; The push rod of the slide block bearing of one of them locating device is supporting a dog screw of going up on the detection arm; Between two optical fiber pedestals about making on the detection arm an initial distance is arranged, an initial light path is promptly arranged; When motor rotates; Driving cam blocks the slide block bearing of each locating device jack-up successively respectively up to the baffle plate that is positioned; It is different to set the distance that the slide block bearing of each locating device moves; Then go up detection arm by jack-up to a plurality of fixing positions, promptly repeatedly changed fixing distance between two optical fiber pedestals on the detection arm up and down, thus the location of having realized a plurality of light paths.
The utility model compared with prior art, its remarkable advantage is: 1, position fixing not exclusively relies on the number of turns that motor rotates, accurate positioning.2, regulate through spring between cam and the slide block bearing, compensated the error that parts bring because of frictional dissipation, accuracy is high, good reproducibility.
Description of drawings
Fig. 1 is the structural representation of a kind of embodiment of the utility model;
Fig. 2 is the structural representation of locating device.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further:
As shown in Figure 1, many light paths locating device of the micro-spectrophotometer of a kind of embodiment of the utility model, it comprises monitor station, optical fiber pedestal 7, locating device 6, cam 4 and motor 5.Wherein, Monitor station is made up of with last detection arm 1 following detection arm 3, and last detection arm 1 is installed in down on the detection arm 3 with the hinge form, and an end of two detection arm is equipped with an optical fiber pedestal 7 respectively; Following detection arm 3 belows are fixed with two locating devices 6; As shown in Figure 2, said locating device 6 is made up of fixed mount 609, guide rail 608, slide block 607, slide block bearing 606, positioning baffle 610 and dog screw 605, and guide rail 608 is installed on the fixed mount 609; Slide block bearing 606 is fixed on the slide block 607 and can moves along guide rail 608; Positioning baffle 610 is located at the top of said slide block bearing 606, and dog screw 605 is located at the below of said slide block bearing 606, through adjustment dog screw 605 slide block bearing 606 is moved in fixing scope; Slide block bearing 606 is provided with push rod 601; Push rod 601 on said two locating devices 6 two dog screws with last detection arm 1 respectively is corresponding about in the of 2, and slide block bearing 606 belows of said two locating devices 6 are provided with two cams 4, and said two cams 4 are installed in the rotating shaft of motor 5; When motor 5 rotates; Two cams 4 respectively with the slide block bearing 606 on two locating devices 6 jack-up successively to the fixed position, the push rod 601 on the slide block bearing 606 will be gone up detection arm 1 jack-up through two dog screws 2 of last detection arm 1, thereby change up and down the distance between the optical fiber pedestal 7 on two detection arm.
The slide block bearing 606 of locating device 6 is provided with a moving member 602; Between slide block bearing 606 and moving member 602, spring 603 is housed also; Spring 603 keeps certain decrement pressing following moving member 602 all the time, and pulley 604 is equipped with in moving member 602 belows, and cam 4 contacts with pulley 604 moving member 602 is moved during work; Moving member 602 moves slide block bearing 606 through the pressure of spring 603 again, so just can compensate the error that causes wearing and tearing and cause because of long-time friction between the parts.
Two cams 4 of slide block bearing 606 belows of two locating devices 6; Can be installed in the rotating shaft of two motors 5 respectively; Control the rotation order of two cams 4 respectively by two motors 5; Also can together be installed in the rotating shaft of a motor 5, only control the rotation order of two cams 4 with a motor 5.
The use of the utility model is following:
Before motor 5 rotates; Slide block bearing 606 on two locating devices 6 is by following dog screw 605 fixing positions; The push rod 601 of the slide block bearing 606 of one of them locating device 6 supports a dog screw 2 of going up on the detection arm 1; Between two optical fiber pedestals 7 about making on the detection arm an initial distance is arranged, an initial light path is promptly arranged; When motor 5 rotates; Driving cam 4 blocks the slide block bearing 606 on two locating devices 6 jack-up successively respectively up to the baffle plate 610 that is positioned; It is different to set the distance that the slide block bearing 606 of two locating devices 6 moves, and then goes up detection arm 1 by jack-up to two a fixing position, has promptly changed the distance of fixing for twice up and down between two optical fiber pedestals 7 on the detection arm; Add an initial distance, thereby realized the location of three light paths.
In like manner; Many light paths locating device of the micro-spectrophotometer of the utility model can be fixed with plural locating device below the following detection arm of monitor station; It is different to set the distance that the slide block bearing of each locating device moves, and then goes up detection arm by the above fixing position of jack-up to twice, has promptly changed above distance of fixing twice between two optical fiber pedestals on the detection arm up and down; Thereby realized the location of a plurality of light paths, the just no longer explanation of its specific embodiment.
This utility model remarkable advantage is: 1, the fixing number of turns that not exclusively relies on the motor rotation of position, accurate positioning.2, regulate through spring between cam and the slide block, compensated the error that parts bring because of frictional dissipation, accuracy is high, good reproducibility.
Claims (3)
1. many light paths locating device of a micro-spectrophotometer comprises monitor station, optical fiber pedestal, locating device, cam and motor, it is characterized in that: monitor station is by detection arm and last detection arm are formed down; Last detection arm is installed in down on the detection arm with the hinge form, and an end of two detection arm is equipped with an optical fiber pedestal respectively, and following detection arm below is fixed with two or more locating devices; Said locating device is made up of fixed mount, guide rail, slide block, slide block bearing, positioning baffle and dog screw; Guide rail is installed on the fixed mount, and the slide block bearing is fixed on the slide block and can moves along guide rail with slide block, and positioning baffle is located at the top of said slide block bearing; Dog screw is located at the below of said slide block bearing; Said slide block bearing is provided with push rod, and the push rod on the said a plurality of locating devices a plurality of dog screws with last detection arm respectively is corresponding up and down, and the slide block bearing below of said each locating device is respectively equipped with a cam; Said each cam is installed on the machine shaft; When motor rotated, jack-up was to the fixed position successively with the slide block bearing of each locating device respectively for each cam, and the push rod on each slide block bearing will be gone up detection arm jack-up through each dog screw of last detection arm; Thereby change up and down the distance between the optical fiber pedestal on two detection arm, realize a plurality of light paths location.
2. many light paths of micro-spectrophotometer according to claim 1 locating device; It is characterized in that: the slide block bearing of said locating device is provided with a moving member; Spring also is housed between slide block bearing and moving member; Spring keeps certain stroke pressing following moving member all the time, and pulley is equipped with in the moving member bottom, and cam contacts with pulley moving member is moved during work; Moving member moves the slide block bearing through spring pressure again, so just can compensate the error that causes the parts loss to cause because of long-time friction between cam and the pulley.
3. many light paths of micro-spectrophotometer according to claim 1 locating device; It is characterized in that: a plurality of cams of the slide block bearing below of said a plurality of locating devices; Can be installed on a plurality of machine shafts respectively; Control the rotation order of cam respectively by a plurality of motors, also can together be installed on the machine shaft, only in proper order with the rotation of an Electric Machine Control cam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220168624 CN202599824U (en) | 2012-04-20 | 2012-04-20 | Multi-optical-path positioning device for micro-spectrophotometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220168624 CN202599824U (en) | 2012-04-20 | 2012-04-20 | Multi-optical-path positioning device for micro-spectrophotometer |
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| Publication Number | Publication Date |
|---|---|
| CN202599824U true CN202599824U (en) | 2012-12-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220168624 Expired - Fee Related CN202599824U (en) | 2012-04-20 | 2012-04-20 | Multi-optical-path positioning device for micro-spectrophotometer |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107920703A (en) * | 2015-06-03 | 2018-04-17 | 三星电子株式会社 | Robot cleaner |
| CN109752373A (en) * | 2019-01-23 | 2019-05-14 | 宜昌市巨正环保科技有限公司 | A kind of resolution colour comparison detection apparatus |
| CN111624167A (en) * | 2020-05-22 | 2020-09-04 | 尤尼柯（上海）仪器有限公司 | Xenon lamp type ultramicro photometer device |
-
2012
- 2012-04-20 CN CN 201220168624 patent/CN202599824U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107920703A (en) * | 2015-06-03 | 2018-04-17 | 三星电子株式会社 | Robot cleaner |
| US10716443B2 (en) | 2015-06-03 | 2020-07-21 | Samsung Electronics Co., Ltd. | Robot cleaner |
| CN109752373A (en) * | 2019-01-23 | 2019-05-14 | 宜昌市巨正环保科技有限公司 | A kind of resolution colour comparison detection apparatus |
| CN111624167A (en) * | 2020-05-22 | 2020-09-04 | 尤尼柯（上海）仪器有限公司 | Xenon lamp type ultramicro photometer device |
| CN111624167B (en) * | 2020-05-22 | 2023-03-14 | 尤尼柯（上海）仪器有限公司 | Xenon lamp type ultramicro photometer device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121212 Termination date: 20130420 |