CN102538676A - Fastening device for casing of linear encoder - Google Patents
Fastening device for casing of linear encoder Download PDFInfo
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- CN102538676A CN102538676A CN2011104422884A CN201110442288A CN102538676A CN 102538676 A CN102538676 A CN 102538676A CN 2011104422884 A CN2011104422884 A CN 2011104422884A CN 201110442288 A CN201110442288 A CN 201110442288A CN 102538676 A CN102538676 A CN 102538676A
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Abstract
A fastening device for a casing of a linear encoder belongs to the technical field of optics and is used for firmly fastening the casing to a part to be detected, and for effectively controlling deformation of the linear encoder upon temperature effect to be within a small range so that the linear coder has certain repeatable temperature property. The fastening for the casing of the linear encoder comprises a rigid casing support and a plurality of flexible casing supports, wherein the rigid casing support is fixed in the middle of the casing, and the flexible casing supports are fixed at equal intervals on the casing and disposed on two sides of the rigid casing support in bilateral symmetry. The rigid casing support is provided with a pin hole in the middle, each flexible casing support is provided with a through hole in the middle, and each flexible casing support is provided with grooves which are reserved on two sides of the through hole in bilateral symmetry. By the aid of the designed structure of the rigid casing support and the flexible casing supports, the deformation of the linear encoder upon temperature effect is controlled well, and the certain repeatable temperature property of the linear encoder is realized.
Description
Technical field
The invention belongs to optical technical field, particularly a kind of chi shell stationary installation of grating chi.
Background technology
In delicate metering and displacement control field, adopt grating as benchmark, be acknowledged as in the world and obtain the most practical, most economical, the reliable measures of high precision.Optical grating ruler measurement mechanism is a mainstream product of realizing this approach, is widely used in various lathes, electromechanical equipment, the automatic measurement equipment.
When the grating chi was installed on two members that move each other as a kind of measuring mechanism, the chi shell was connected with a member to be measured, and the related scanning mechanism of balladeur train body is connected with another member to be measured.The grating chi can receive the influence of factors such as ball screw assembly, in measuring process, certain variation can take place temperature, thereby produces the phenomenon of expanding with heat and contract with cold, and can have influence on the precision of grating chi.
Summary of the invention
The chi shell stationary installation that the purpose of this invention is to provide a kind of grating chi; This device is securely fixed in the chi shell on the member to be measured; And the Deformation control that produces grating chi temperature influence effectively makes the grating chi have definite repeatably temperature characterisitic in small range.
The present invention is a kind of chi shell stationary installation of grating chi; This device is made up of rigidity chi shell support and a plurality of flexible chi shell support; Rigidity chi shell support is fixed on the centre position of chi shell, and a plurality of flexible chi shell supports equidistantly are fixed on the chi shell, place the both sides and the left-right symmetric of rigidity chi shell support; Pin hole is set in the middle of the said rigidity chi shell support, in the middle of the said flexible chi shell support through hole is set, this flexibility chi shell support also has groove and is positioned at the through hole both sides and is symmetrical set;
On the said chi shell gathering sill longitudinally is set, nut places in the gathering sill;
Said rigidity chi shell support both sides are provided with first counterbore and second counterbore respectively, cooperate through socket head cap screw and nut rigidity chi shell support and chi shell are fixed together, and between socket head cap screw and the rigidity chi shell support elastomeric pad are set;
Said flexible chi shell support both sides are provided with the 3rd counterbore and the 4th counterbore respectively, cooperate through socket head cap screw and nut flexible chi shell support and chi shell are fixed together, and between socket head cap screw and the flexible chi shell support elastomeric pad are set;
Said flexible chi shell support is near being provided with and the corresponding flexible support locating surface of chi shell left surface on the direction of member to be measured;
Have one and the corresponding rigid support locating surface of chi shell left surface on the direction of said rigidity chi shell support near member to be measured.
The chi shell stationary installation of a kind of grating chi according to the invention adopts the structure of separate type; Controlled the distortion that grating chi temperature influence produces preferably through the project organization of rigidity chi shell support and a plurality of flexible chi shell supports; Realize the repeatably temperature characterisitic of confirming of grating chi, thereby guaranteed the measuring accuracy of grating chi effectively; This apparatus structure is simple, is convenient to processing, operation easy to implement.
Description of drawings
Fig. 1 is the front view of chi shell and stationary installation thereof.
Fig. 2 is the A-A cross sectional view of chi shell and stationary installation thereof.
Fig. 3 is the front view of flexible chi shell support.
Fig. 4 is the vertical view of flexible chi shell support.
Fig. 5 is the front view of rigidity chi shell support.
Fig. 6 is the vertical view of rigidity chi shell support.
Among the figure, 1, rigidity chi shell support, 2, flexible chi shell support, 3, pin, 4, bolt; 5, chi shell, 6, elastomeric pad, 7, socket head cap screw, 8, nut, 9, the flexible support locating surface; 10, through hole, 11, one counterbore, 12, second counterbore, 13, the rigid support locating surface, 14, pin hole; 15, the 3rd counterbore, the 16, the 4th counterbore, 17, gathering sill, 18, left surface, 19, groove.
Embodiment
Further describe below in conjunction with the accompanying drawing specific embodiments of the invention.
As shown in Figure 1, be fixed with rigidity chi shell support 1 in the centre position of chi shell 5, it 3 is rigidly connected with member to be measured through pinning; Have a flexible chi shell support 2 respectively in the both sides of rigidity chi shell support 1, they flexibly connect through bolt 4 and member to be measured.When chi shell 5 takes place when flexible relatively because of temperature variation and member to be measured; Because the effect of rigidity chi shell support 1, the center of chi shell 5 can not be moved, when temperature raises; Whole chi shell is divergence point both direction expansion to the left and right with the center; When temperature reduces, the both sides of chi shell will be that Rendezvous Point inwardly shrinks with the center, and chi shell 5 has definite repeatably temperature characterisitic.
Be rigidly connected if all adopt; Then the grating chi can not produce dilatation near pilot hole; And other part of grating chi will expand contraction when temperature variation, will cause the temperature variant nonaffine deformation of grating chi like this, and the temperature characterisitic of whole grating chi is uncertain; Flexibly connect if all adopt, when temperature variation, the dilatation of grating chi has uncertain directivity, nor can guarantee the repeatably temperature characterisitic of each part.
Two types chi shell support is identical with the fixed connection mode of chi shell 5, is example with flexible chi shell support, and is as shown in Figure 2, and flexible chi shell support 2 is fixed on the chi shell 5 through socket head cap screw 7, elastomeric pad 6, nut 8.On chi shell 5, have gathering sill 17, nut 8 can be put into wherein, because nut 8 matches with the size of gathering sill 17 on Width; When turn socket head cap screw 7; Nut 8 can't rotate, and like this, socket head cap screw 7 will closely be connected through screw thread with nut 8.Elastomeric pad 6 will be reinforced this connection, and flexible chi shell support 2 is fixed on the chi shell 5 long-term effectively.On the direction of flexible chi shell support 2, has flexible support locating surface 9 near member to be measured; It is corresponding with the left surface 18 of chi shell 5; When being fixed on flexible chi shell support 2 on the member to be measured, flexible support locating surface 9 will closely contact with member to be measured with the left surface 18 of chi shell 5.
As shown in Figure 3, flexible chi shell support 2 has a through hole 10, flexibly connects in order to inserting bolt 4, and a plurality of grooves 19 of its both sides are convenient to its mobility when temperature variation.As shown in Figure 4, the counterbore that the both sides of flexible chi shell support 2 have symmetry is first counterbore 11 and second counterbore 12, is used to insert socket head cap screw 7 and is fixed on chi shell 5 to flexible chi shell support 2.
The structural representation of rigidity chi shell support 1 as shown in Figure 5; Different with flexible chi shell support 2; 3 pin holes 14 that match that are provided with wherein and pin, insert pin 3 after, rigidity chi shell support 1 will firmly be connected with member to be measured; And not recessing will can not be moved during temperature variation on rigidity chi shell support 1.As shown in Figure 6, the counterbore that the both sides of rigidity chi shell support 1 have symmetry is the 3rd counterbore 15 and the 4th counterbore 16, is used to insert socket head cap screw 7 and is fixed on chi shell 5 to rigidity chi shell support 1.
Claims (6)
1. the chi shell stationary installation of a grating chi; This device is made up of rigidity chi shell support (1) and a plurality of flexible chi shell supports (2); It is characterized in that; Said rigidity chi shell support (1) is fixed on the centre position of chi shell (5), and said a plurality of flexible chi shell supports (2) equidistantly are fixed on the chi shell (5), places rigidity chi shell support (1) both sides and left-right symmetric; Pin hole (14) is set in the middle of the said rigidity chi shell support (1), through hole (10) is set in the middle of the said flexible chi shell support (2), this flexibility chi shell support (2) also has groove (19) and is positioned at through hole (10) both sides and is symmetrical set.
2. the chi shell stationary installation of a kind of grating chi according to claim 1 is characterized in that, gathering sill (17) longitudinally is set on the said chi shell (5), and nut (8) places in the gathering sill (17).
3. the chi shell stationary installation of a kind of grating chi according to claim 2; It is characterized in that; Said rigidity chi shell support (1) both sides are provided with first counterbore (15) and second counterbore (16) respectively; Through socket head cap screw (7) and nut (8) cooperation rigidity chi shell support (1) and chi shell (5) are fixed together, between socket head cap screw (7) and the rigidity chi shell support (1) elastomeric pad (6) are set.
4. the chi shell stationary installation of a kind of grating chi according to claim 2; It is characterized in that; Said flexible chi shell support (2) both sides are provided with the 3rd counterbore (11) and the 4th counterbore (12) respectively; Matching through socket head cap screw (7) and nut (8) is fixed together flexible chi shell support (2) and chi shell (5), between socket head cap screw (7) and the flexible chi shell support (2) elastomeric pad (6) is set.
5. the chi shell stationary installation of a kind of grating chi according to claim 1 is characterized in that, has on the direction of said rigidity chi shell support (1) near member to be measured and the corresponding rigid support locating surface (13) of chi shell (5) left surface (18).
6. the chi shell stationary installation of a kind of grating chi according to claim 1 is characterized in that, said flexible chi shell support (2) is near being provided with on the direction of member to be measured and the corresponding flexible support locating surface (9) of chi shell (5) left surface (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110442288.4A CN102538676B (en) | 2011-12-26 | 2011-12-26 | Fastening device for casing of linear encoder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110442288.4A CN102538676B (en) | 2011-12-26 | 2011-12-26 | Fastening device for casing of linear encoder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102538676A true CN102538676A (en) | 2012-07-04 |
| CN102538676B CN102538676B (en) | 2014-07-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110442288.4A Expired - Fee Related CN102538676B (en) | 2011-12-26 | 2011-12-26 | Fastening device for casing of linear encoder |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103604370A (en) * | 2013-11-26 | 2014-02-26 | 中国科学院长春光学精密机械与物理研究所 | Auxiliary device for fixing main grating ruler and ruler shell of grating ruler |
| CN103737435A (en) * | 2013-12-04 | 2014-04-23 | 安徽理工大学 | Method for improving measurement accuracy of grating measurement system of numerical control machine tool |
| CN104476929A (en) * | 2014-12-25 | 2015-04-01 | 北京美科艺数码科技发展有限公司 | Grating mounting bracket and mounting method thereof |
| CN105119097A (en) * | 2015-09-21 | 2015-12-02 | 上海卫星工程研究所 | Spaceflight power bus fixing device |
| CN105449495A (en) * | 2015-11-03 | 2016-03-30 | 北京热刺激光技术有限责任公司 | Radio frequency laser with negative electrode plate installed on parallel supports |
| CN106482769A (en) * | 2016-11-23 | 2017-03-08 | 广州市精谷智能科技有限公司 | A kind of linear encoder shell keeps the structure of linearity under the conditions of expanding with heat and contract with cold |
| CN108194777A (en) * | 2017-12-28 | 2018-06-22 | 长春禹衡光学有限公司 | A kind of erecting device of grating scale |
| CN109579710A (en) * | 2018-12-26 | 2019-04-05 | 中国航空工业集团公司北京航空精密机械研究所 | A kind of flexible grating installing mechanism with thermal stability |
| CN110186377A (en) * | 2019-07-03 | 2019-08-30 | 长春禹衡光学有限公司 | A kind of grating scale and its ruler shell |
| CN110657150A (en) * | 2019-09-29 | 2020-01-07 | 长春禹衡光学有限公司 | Grating ruler and nut fixing device thereof |
| CN112123008A (en) * | 2020-09-23 | 2020-12-25 | 江苏洛柳精密科技有限公司 | Protection installation of grating ruler |
Citations (4)
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| US20020180984A1 (en) * | 2001-06-04 | 2002-12-05 | Fuji Photo Optical Co., Ltd. | Support apparatus for optical wave interferometer reference plate |
| CN2867283Y (en) * | 2006-02-13 | 2007-02-07 | 广州市诺信数字测控设备有限公司 | Butt-joining mechanism for lengthening grating rule |
| CN101770166A (en) * | 2010-01-06 | 2010-07-07 | 天津大学 | Two-translational-motion precision positioning working table for nano-imprint photoetching system |
| CN101988819A (en) * | 2009-07-30 | 2011-03-23 | 廊坊开发区莱格光电仪器有限公司 | Sealed laser grating remote safe linear displacement sensor |
-
2011
- 2011-12-26 CN CN201110442288.4A patent/CN102538676B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020180984A1 (en) * | 2001-06-04 | 2002-12-05 | Fuji Photo Optical Co., Ltd. | Support apparatus for optical wave interferometer reference plate |
| CN2867283Y (en) * | 2006-02-13 | 2007-02-07 | 广州市诺信数字测控设备有限公司 | Butt-joining mechanism for lengthening grating rule |
| CN101988819A (en) * | 2009-07-30 | 2011-03-23 | 廊坊开发区莱格光电仪器有限公司 | Sealed laser grating remote safe linear displacement sensor |
| CN101770166A (en) * | 2010-01-06 | 2010-07-07 | 天津大学 | Two-translational-motion precision positioning working table for nano-imprint photoetching system |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103604370A (en) * | 2013-11-26 | 2014-02-26 | 中国科学院长春光学精密机械与物理研究所 | Auxiliary device for fixing main grating ruler and ruler shell of grating ruler |
| CN103604370B (en) * | 2013-11-26 | 2016-07-06 | 中国科学院长春光学精密机械与物理研究所 | The auxiliary device fixing with chi shell by main for grating scale grating scale |
| CN103737435B (en) * | 2013-12-04 | 2016-01-06 | 安徽理工大学 | A kind of method improving CNC Machine Grating measuring system certainty of measurement |
| CN103737435A (en) * | 2013-12-04 | 2014-04-23 | 安徽理工大学 | Method for improving measurement accuracy of grating measurement system of numerical control machine tool |
| CN104476929B (en) * | 2014-12-25 | 2017-06-23 | 北京美科艺数码科技发展有限公司 | A kind of grating mounting bracket and its installation method |
| CN104476929A (en) * | 2014-12-25 | 2015-04-01 | 北京美科艺数码科技发展有限公司 | Grating mounting bracket and mounting method thereof |
| CN105119097A (en) * | 2015-09-21 | 2015-12-02 | 上海卫星工程研究所 | Spaceflight power bus fixing device |
| CN105119097B (en) * | 2015-09-21 | 2018-02-06 | 上海卫星工程研究所 | Space flight power bus fixing device |
| CN105449495A (en) * | 2015-11-03 | 2016-03-30 | 北京热刺激光技术有限责任公司 | Radio frequency laser with negative electrode plate installed on parallel supports |
| CN106482769A (en) * | 2016-11-23 | 2017-03-08 | 广州市精谷智能科技有限公司 | A kind of linear encoder shell keeps the structure of linearity under the conditions of expanding with heat and contract with cold |
| CN106482769B (en) * | 2016-11-23 | 2018-12-28 | 广州市精谷智能科技有限公司 | A kind of linear encoder shell keeps the structure of straightness under the conditions of expanding with heat and contract with cold |
| CN108194777A (en) * | 2017-12-28 | 2018-06-22 | 长春禹衡光学有限公司 | A kind of erecting device of grating scale |
| CN109579710A (en) * | 2018-12-26 | 2019-04-05 | 中国航空工业集团公司北京航空精密机械研究所 | A kind of flexible grating installing mechanism with thermal stability |
| CN110186377A (en) * | 2019-07-03 | 2019-08-30 | 长春禹衡光学有限公司 | A kind of grating scale and its ruler shell |
| CN110657150A (en) * | 2019-09-29 | 2020-01-07 | 长春禹衡光学有限公司 | Grating ruler and nut fixing device thereof |
| CN112123008A (en) * | 2020-09-23 | 2020-12-25 | 江苏洛柳精密科技有限公司 | Protection installation of grating ruler |
| CN112123008B (en) * | 2020-09-23 | 2022-03-29 | 江苏洛柳精密科技有限公司 | Protection installation of grating ruler |
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|---|---|
| CN102538676B (en) | 2014-07-09 |
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