CN103697924A - Positioning device of absolute type grating ruler photoelectric receiving device - Google Patents
Positioning device of absolute type grating ruler photoelectric receiving device Download PDFInfo
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- CN103697924A CN103697924A CN201310687644.8A CN201310687644A CN103697924A CN 103697924 A CN103697924 A CN 103697924A CN 201310687644 A CN201310687644 A CN 201310687644A CN 103697924 A CN103697924 A CN 103697924A
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Abstract
The invention relates to a positioning device of an absolute type grating ruler photoelectric receiving device, belongs to the technical field of photoelectric measurement, and aims at solving the problems of poor reliability and low precision of a grating measuring mechanism in the prior art. The positioning device comprises a support structure, a device adjusting mechanism, an indicating grating adjusting mechanism and a CCD (charge coupled device), wherein the support structure consists of a base, a middle seat, an upper end support frame and a connecting rod, the device adjusting mechanism is fixedly arranged on the upper end support frame, and realizes the fixation and the adjustment of the photoelectric receiving device, the indicating grating adjusting mechanism is fixedly arranged at the middle seat and realizes the fixation and the adjustment of an indicating grating, the CCD is fixedly arranged on the base, the upper end of the CCD is connected with an objective lens, the relative positions of the photoelectric receiving device and the indicating grating are observed through the objective lens and the CCD, and further, the bonding is realized. The mechanical fine adjustment is adopted, in addition, the imaging of the CCD in a computer is utilized for observation, the operation is convenient, the observation is clear, the adjustment time is greatly reduced, and the reliability and the precision of the whole grating ruler measuring mechanism are also improved.
Description
Technical field
The invention belongs to photoelectric measurement technical field, be specifically related to a kind of locating device of absolute grating scale photoelectric receiving device.
Background technology
At delicate metering and displacement control field, adopt grating as benchmark, be acknowledged as in the world and obtain the most practical, most economical, the most reliable technical measures of high precision.Optical grating ruler measurement mechanism is the mainstream product of realizing this approach, is widely used in various lathes, electromechanical equipment, automatic measurement equipment.
The grating scale using on numerically-controlled machine is comprised of key light grid and indication grating, wherein key light grid are bonded on chi shell, indication grating is bonded on the indication grating balladeur train of read head, when the feed shaft of numerically-controlled machine moves, chi shell and read head generation relative motion, utilize the Moire effect of light, position is moved to the movement that is transformed into light and dark Moire fringe, then convert digital quantity signal to by photoelectric receiving device.
When the structure of carrying out optical grating ruler measurement mechanism is installed, need to adjust the relative position relation of photoelectric receiving device and indication grating, make the relative position between itself and indication grating correct, then photoelectric receiving device is bonded on indication grating, on the key light grid of absolute grating scale, there are absolute code channel and increment code channel, on indication grating, be correspondingly provided with absolute window and increment groove, photoelectric receiving device has different reception picture dots for absolute measurement and increment measurement, so must guarantee that the relative position between them is correct.Traditional process means is to rely on eye and the hand of debuging master worker to operate completely, the position that causes adjusting very accurately photoelectric receiving device due to personal error, make the reliability of whole optical grating ruler measurement mechanism be difficult to guarantee, precision also can be subject to certain impact.
Summary of the invention
The object of the invention is to propose a kind of locating device of absolute grating scale photoelectric receiving device, solve the problem that grating measuring mechanism reliability is poor, precision is low that prior art exists.
For achieving the above object, the locating device of a kind of absolute grating scale photoelectric receiving device of the present invention comprises:
The supporting construction being formed by base, middle base, upper end support and connecting rod, described base, middle base and upper end support are fixed on described connecting rod from the bottom to top;
Be fixed on the device adjusting mechanism of described upper end support, described device adjusting mechanism comprises device fixed mechanism and rack gear, described rack gear is fixedly connected with described upper end support, by described device fixed mechanism, realize the clamping to photoelectric receiving device, by rack gear, realize the adjustment to the upper and lower displacement of device fixed mechanism;
Be fixed on the indication grating adjusting mechanism of described middle base, described indication grating adjusting mechanism comprises indication grating balladeur train fixed mechanism, left-and-right spiral gear train and front and back screw-drive mechanism, by described indication grating balladeur train fixed mechanism, realize fixing indication grating, by described left-and-right spiral gear train and front and back screw-drive mechanism, regulate the position of indication grating balladeur train fixed mechanism, realize the adjustment of the relative position of indication grating and photoelectric receiving device;
Be fixed on the CCD on described base, described CCD upper end is connected with object lens, observes the relative position of described photoelectric receiving device and described indication grating by described object lens and CCD.
Describedly by rack gear, realize the adjustment of device fixed mechanism upper and lower displacement is specially: described rack gear comprises rack guide rail, track base, adjustment gear and fixed head, described track base is fixedly connected with upper end support, fixed head is fixed on rack guide rail, described adjustment gear and the engagement of described rack guide rail, rotate and adjust gear, slip by rack guide rail on described track base drives fixed head to move up and down, and then drives device fixed mechanism to move up and down.
Described device fixed mechanism comprises device folder, left elastomeric pad, right elastomeric pad, adjusting screw(rod) and nut, left elastomeric pad and right elastomeric pad are separately fixed at the both sides of device folder, between left elastomeric pad and device folder, be placed with nut, be used for left elastomeric pad to pave, by adjusting screw(rod), adjust the distance of left elastomeric pad and right elastomeric pad, realize the clamping of photoelectric receiving device and unclamp.
Described indication grating balladeur train fixed mechanism comprises clear glass, press strip, balladeur train fixture, indication grating balladeur train and rotating disk; By press strip, clear glass is pressed on rotating disk, by two balladeur train fixtures, indication grating balladeur train is fixed on clear glass, indication grating is bonded on indication grating balladeur train, by rotating rotating disk to drive indication grating balladeur train to rotate, adjust the angle between indication grating and photoelectric receiving device.
Beneficial effect of the present invention is: the locating device of a kind of absolute grating scale photoelectric receiving device of the present invention adopts mechanical fine adjustment, and utilize the imaging of CCD in computer to observe, can easily and accurately adjust the relative position of photoelectric receiving device and indication grating, thereby carry out the bonding of photoelectric receiving device and indication grating; Easy to operate, observe clearly, greatly reduced the adjustment time, also improved reliability and the precision of whole optical grating ruler measurement mechanism.
Accompanying drawing explanation
Fig. 1 is the locating device front view of a kind of absolute grating scale photoelectric receiving device of the present invention;
Fig. 2 is the locating device one-piece construction schematic diagram of a kind of absolute grating scale photoelectric receiving device of the present invention;
Fig. 3 is the device fixed mechanism front view in the locating device of a kind of absolute grating scale photoelectric receiving device of the present invention;
Fig. 4 is the indication grating balladeur train fixed mechanism vertical view in the locating device of a kind of absolute grating scale photoelectric receiving device of the present invention;
Fig. 5 is the left-and-right spiral gear train schematic diagram in the locating device of a kind of absolute grating scale optoelectronic receiver part of the present invention;
Fig. 6 is the front and back screw-drive mechanism vertical view in the locating device of a kind of absolute grating scale optoelectronic receiver part of the present invention;
Fig. 7 is the front and back screw-drive mechanism front view in the locating device of a kind of absolute grating scale optoelectronic receiver part of the present invention;
Wherein: 1, supporting construction, 2, CCD, 3, object lens, 4, left-and-right spiral gear train, 5, front and back screw-drive mechanism, 6, indication grating balladeur train fixed mechanism, 7, device fixed mechanism, 8, rack gear, 9, base, 10, middle base, 11, upper end support, 12, connecting rod, 13, rack guide rail, 14, track base, 15, adjust gear, 16, fixed head, 17, device folder, 18, left elastomeric pad, 19, right elastomeric pad, 20, adjusting screw(rod), 21, nut, 22, clear glass, 23, press strip, 24, balladeur train fixture, 25, indication grating balladeur train, 26, rotating disk, 27, photoelectric receiving device, 28, indication grating, 29, runner, 30, leading screw A, 31, screw, 32, slide block, 33, rail plate, 34, leading screw B, 35, rotary disk basement.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the present invention are described further.
Referring to accompanying drawing 1 and accompanying drawing 2, the locating device of a kind of absolute grating scale photoelectric receiving device of the present invention comprises:
The supporting construction 1 being formed by base 9, middle base 10, upper end support 11 and connecting rod 12, described base 9, middle base 10 and upper end support 11 are fixed on described connecting rod 12 from the bottom to top;
Be fixed on the device adjusting mechanism of described upper end support 11, described device adjusting mechanism comprises device fixed mechanism 7 and rack gear 8, described rack gear 8 is fixedly connected with described upper end support 11, the clamping realizing photoelectric receiving device 27 by described device fixed mechanism 7, the adjustment realizing 7 upper and lower displacements of device fixed mechanism by rack gear 8;
Be fixed on the indication grating adjusting mechanism of described middle base 10, described indication grating adjusting mechanism comprises indication grating balladeur train fixed mechanism 6, left-and-right spiral gear train 4 and front and back screw-drive mechanism 5, by described indication grating balladeur train fixed mechanism 6, realize fixing indication grating 28, by described left-and-right spiral gear train 4 and front and back screw-drive mechanism 5, regulate the position of indication grating balladeur train fixed mechanism 6, realize the adjustment of the relative position of indication grating 28 and photoelectric receiving device 27;
Be fixed on the CCD2 on described base 9, described CCD2 upper end is connected with object lens 3, observes the relative position of described photoelectric receiving device 27 and described indication grating 28 by described object lens 3 and CCD2.
Describedly by rack gear 8, realize the adjustment of device fixed mechanism 7 upper and lower displacements is specially: described rack gear 8 comprises rack guide rail 13, track base 14, adjusts gear 15 and fixed head 16, described track base 14 is fixedly connected with upper end support 11, fixed head 16 is fixed on rack guide rail 13, described adjustment gear 15 and described rack guide rail 13 engagements, rotate and adjust gear 15, slip by rack guide rail 13 on described track base 14 drives fixed head 16 to move up and down, and then drives device fixed mechanism 7 to move up and down.
Referring to accompanying drawing 3, described device fixed mechanism 7 comprises device folder 17, left elastomeric pad 18, right elastomeric pad 19, adjusting screw(rod) 20 and nut 21, left elastomeric pad 18 and right elastomeric pad 19 are separately fixed at the both sides of device folder 17, at left elastomeric pad 18 and 17, device folder, be placed with nut 21, be used for left elastomeric pad 18 to pave, by adjusting screw(rod) 20, adjust the distance of left elastomeric pad 18 and right elastomeric pad 19, realization is to the clamping of photoelectric receiving device 27 and unclamp, when photoelectric receiving device 27 being placed on to device pressing from both sides 17 times, by adjusting adjusting screw(rod) 20, photoelectric receiving device 27 can be clamped in to 19 of left elastomeric pad 18 and right elastomeric pads, the adjustment gear 15 of turning gear strip transmission mechanism 8 puts off photoelectric receiving device 27 on indication grating 28, by left-and-right spiral gear train 4, front and back screw-drive mechanism 5 and rotating disk 26 are adjusted the relative position of photoelectric receiving device 27 and indication grating 28, when correct position, photoelectric receiving device 27 is bonded on indication grating 28, recycling adjusting screw(rod) 20 unclamps photoelectric receiving device 27, so just completed the bonding of photoelectric receiving device 27.
Referring to accompanying drawing 4, described indication grating balladeur train fixed mechanism 6 comprises clear glass 22, press strip 23, balladeur train fixture 24, indication grating balladeur train 25 and rotating disk 26; By press strip 23, clear glass 22 is pressed on rotating disk 26, described press strip 23 is flexibly connected with described rotating disk 26 by bolt, clear glass 22 is placed between press strip 23 and rotating disk 26, by tighting a bolt, realize the compression of clear glass 22 on rotating disk 26, by two balladeur train fixtures 24, indication grating balladeur train 25 is fixed on clear glass 22, indication grating 28 is bonded on indication grating balladeur train 25, by rotating rotating disk 26 to drive indication grating balladeur train 25 to rotate, adjust the angle of 27 of indication grating 28 and photoelectric receiving devices.
Referring to accompanying drawing 5, accompanying drawing 6 and accompanying drawing 7, described left-and-right spiral gear train 4 comprises runner 29, leading screw A30, screw 31, slide block 32 and rail plate 33, described rail plate 33 is fixed in described middle base 10, described leading screw A30 and screw 31 form screw pair, described slide block 32 is fixedly connected with described screw 31, by rotating wheel 29, drive leading screw A30 to rotate, and then slide along rail plate 33 by screw 31 band movable sliders 32; Described front and back screw-drive mechanism 5 comprises leading screw B34 and rotary disk basement 35, rotational lead screw B34 drives rotary disk basement 35 to move forward and backward on the slide block 32 of left-and-right spiral gear train 4, described rotating disk 26 is enclosed within on described rotary disk basement 35, and hand rotation rotating disk 26 is realized the adjustment of indication grating 28 and photoelectric receiving device 27 angles.
Be more than the specific embodiment of the present invention, but limitation of the present invention absolutely not.
Claims (4)
1. a locating device for absolute grating scale photoelectric receiving device, is characterized in that, comprising:
The supporting construction (1) being formed by base (9), middle base (10), upper end support (11) and connecting rod (12), described base (9), middle base (10) and upper end support (11) are fixed on described connecting rod (12) from the bottom to top;
Be fixed on the device adjusting mechanism of described upper end support (11), described device adjusting mechanism comprises device fixed mechanism (7) and rack gear (8), described rack gear (8) is fixedly connected with described upper end support (11), by described device fixed mechanism (7), realize the clamping to photoelectric receiving device (27), by rack gear (8), realize the adjustment to device fixed mechanism (7) upper and lower displacement;
Be fixed on the indication grating adjusting mechanism of described middle base (10), described indication grating adjusting mechanism comprises indication grating balladeur train fixed mechanism (6), left-and-right spiral gear train (4) and front and back screw-drive mechanism (5), by described indication grating balladeur train fixed mechanism (6), realize fixing indication grating (28), by described left-and-right spiral gear train (4) and front and back screw-drive mechanism (5), regulate the position of indication grating balladeur train fixed mechanism (6), realize the adjustment of the relative position of indication grating (28) and photoelectric receiving device (27);
Be fixed on the CCD(2 on described base (9)), described CCD(2) upper end is connected with object lens (3), by described object lens (3) with CCD(2) observe the relative position of described photoelectric receiving device (27) and described indication grating (28).
2. the locating device of a kind of absolute grating scale photoelectric receiving device according to claim 1, it is characterized in that, describedly by rack gear (8), realize the adjustment of device fixed mechanism (7) upper and lower displacement is specially: described rack gear (8) comprises rack guide rail (13), track base (14), adjust gear (15) and fixed head (16), described track base (14) is fixedly connected with upper end support (11), fixed head (16) is fixed on rack guide rail (13), described adjustment gear (15) and described rack guide rail (13) engagement, rotate and adjust gear (15), slip by rack guide rail (13) on described track base (14) drives fixed head (16) to move up and down, and then drive device fixed mechanism (7) to move up and down.
3. the locating device of a kind of absolute grating scale photoelectric receiving device according to claim 1, it is characterized in that, described device fixed mechanism (7) comprises device folder (17), left elastomeric pad (18), right elastomeric pad (19), adjusting screw(rod) (20) and nut (21), left elastomeric pad (18) is separately fixed at right elastomeric pad (19) both sides that device presss from both sides (17), between left elastomeric pad (18) and device folder (17), be placed with nut (21), be used for left elastomeric pad (18) to pave, by adjusting screw(rod) (20), adjust the distance of left elastomeric pad (18) and right elastomeric pad (19), realization is to the clamping of photoelectric receiving device (27) and unclamp.
4. the locating device of a kind of absolute grating scale photoelectric receiving device according to claim 1, it is characterized in that, described indication grating balladeur train fixed mechanism (6) comprises clear glass (22), press strip (23), balladeur train fixture (24), indication grating balladeur train (25) and rotating disk (26); By press strip (23), clear glass (22) is pressed on rotating disk (26), by two balladeur train fixtures (24), indication grating balladeur train (25) is fixed on clear glass (22), indication grating (28) is bonded on indication grating balladeur train (25), by rotating rotating disk (26), drive indication grating balladeur train (25) to rotate, adjust the angle between indication grating (28) and photoelectric receiving device (27).
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| CN201310687644.8A CN103697924B (en) | 2013-12-16 | 2013-12-16 | A kind of locating device of absolute grating scale photoelectric receiving device |
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| CN201310687644.8A CN103697924B (en) | 2013-12-16 | 2013-12-16 | A kind of locating device of absolute grating scale photoelectric receiving device |
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| CN103697924B CN103697924B (en) | 2016-01-13 |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104165590A (en) * | 2014-08-05 | 2014-11-26 | 中国科学院长春光学精密机械与物理研究所 | Illumination mechanism bonding device of grating ruler |
| CN104214179A (en) * | 2014-08-26 | 2014-12-17 | 中国科学院长春光学精密机械与物理研究所 | Suspended adsorption type automatic adhering device for indicating gratings |
| CN105180816A (en) * | 2015-05-27 | 2015-12-23 | 中国科学院长春光学精密机械与物理研究所 | Photoelectric receiver and indicative grating air floatation adjusting and mounting device and mounting method thereof |
| CN105547150A (en) * | 2015-12-22 | 2016-05-04 | 中国科学院长春光学精密机械与物理研究所 | Splicing apparatus of LED light source and light source seat in grating scale and method thereof |
| CN107199422A (en) * | 2017-06-30 | 2017-09-26 | 扬州五岳电器有限公司 | A kind of bottom plate connects welding machine |
| CN107957239A (en) * | 2017-12-25 | 2018-04-24 | 苏州欧鹏自动化设备有限公司 | A kind of grating scale positioning tool |
| CN107966101A (en) * | 2017-12-25 | 2018-04-27 | 苏州欧鹏自动化设备有限公司 | A kind of grating scale mounting tool |
| CN108151673A (en) * | 2017-12-29 | 2018-06-12 | 长春禹衡光学有限公司 | A kind of photoelectronic imaging scanning means |
| CN109830425A (en) * | 2019-01-29 | 2019-05-31 | 厦门大学 | A kind of ion source of the micro/nano-scale desorption based on microlens optical fibre |
| CN110186378A (en) * | 2019-07-03 | 2019-08-30 | 长春禹衡光学有限公司 | A kind of grating scale |
| CN115900558A (en) * | 2022-11-11 | 2023-04-04 | 长光（沧州）光栅传感技术有限公司 | Device for bonding and aligning grating indicator of grating scale reading head of bending machine and main grating |
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| CN104165590A (en) * | 2014-08-05 | 2014-11-26 | 中国科学院长春光学精密机械与物理研究所 | Illumination mechanism bonding device of grating ruler |
| CN104165590B (en) * | 2014-08-05 | 2017-04-05 | 中国科学院长春光学精密机械与物理研究所 | A kind of lighting mechanism adhering device of grating scale |
| CN104214179A (en) * | 2014-08-26 | 2014-12-17 | 中国科学院长春光学精密机械与物理研究所 | Suspended adsorption type automatic adhering device for indicating gratings |
| CN105180816A (en) * | 2015-05-27 | 2015-12-23 | 中国科学院长春光学精密机械与物理研究所 | Photoelectric receiver and indicative grating air floatation adjusting and mounting device and mounting method thereof |
| CN105180816B (en) * | 2015-05-27 | 2017-09-12 | 中国科学院长春光学精密机械与物理研究所 | Photelectric receiver adjusts erecting device and its installation method with indication grating air supporting |
| CN105547150A (en) * | 2015-12-22 | 2016-05-04 | 中国科学院长春光学精密机械与物理研究所 | Splicing apparatus of LED light source and light source seat in grating scale and method thereof |
| CN105547150B (en) * | 2015-12-22 | 2019-03-05 | 中国科学院长春光学精密机械与物理研究所 | The adhering device and method of LED light source and light source base in grating scale |
| CN107199422A (en) * | 2017-06-30 | 2017-09-26 | 扬州五岳电器有限公司 | A kind of bottom plate connects welding machine |
| CN107966101A (en) * | 2017-12-25 | 2018-04-27 | 苏州欧鹏自动化设备有限公司 | A kind of grating scale mounting tool |
| CN107957239A (en) * | 2017-12-25 | 2018-04-24 | 苏州欧鹏自动化设备有限公司 | A kind of grating scale positioning tool |
| CN108151673A (en) * | 2017-12-29 | 2018-06-12 | 长春禹衡光学有限公司 | A kind of photoelectronic imaging scanning means |
| CN109830425A (en) * | 2019-01-29 | 2019-05-31 | 厦门大学 | A kind of ion source of the micro/nano-scale desorption based on microlens optical fibre |
| CN110186378A (en) * | 2019-07-03 | 2019-08-30 | 长春禹衡光学有限公司 | A kind of grating scale |
| CN110186378B (en) * | 2019-07-03 | 2021-06-25 | 长春禹衡光学有限公司 | Grating ruler |
| CN115900558A (en) * | 2022-11-11 | 2023-04-04 | 长光（沧州）光栅传感技术有限公司 | Device for bonding and aligning grating indicator of grating scale reading head of bending machine and main grating |
| CN115900558B (en) * | 2022-11-11 | 2023-11-03 | 长光（沧州）光栅传感技术有限公司 | Bending machine grating ruler reading head indication grating and main grating bonding alignment device |
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