CN206192379U - Straight -line code ware shell keeps structure of straightness accuracy under expend with heat and contract with cold condition - Google Patents
Straight -line code ware shell keeps structure of straightness accuracy under expend with heat and contract with cold condition Download PDFInfo
- Publication number
- CN206192379U CN206192379U CN201621256742.1U CN201621256742U CN206192379U CN 206192379 U CN206192379 U CN 206192379U CN 201621256742 U CN201621256742 U CN 201621256742U CN 206192379 U CN206192379 U CN 206192379U
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- linear encoder
- straight
- contract
- shell
- heat
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Abstract
The utility model discloses a straight -line code ware shell keeps structure of straightness accuracy under expend with heat and contract with cold condition, including seting up pore structure, sharp recess, hollow circular cylinder structure, elasticity reed structure and the fastening structure of setting on straight -line code ware shell on straight -line code ware shell, the central point of pore structure is on the line of rabbet joint of sharp recess, the pore structure on the straight -line code ware shell is passed to the hollow circular cylinder structure, and cooperate with the pore structure, elasticity reed structure's open and flat part is adjacent with hollow circular cylinder structure outside terminal surface, elasticity reed structure bends inwards in the outside and pastes tight straight -line code ware shell, elasticity reed structure is passed to the fastening structure, hollow circular cylinder structure and pore structure are fixed the straight -line code ware on equipment, elastic deformation takes place for fastening back elasticity reed structure, open and flat part of elasticity reed structure and hollow circular cylinder structure outside surface contact. The utility model discloses a straight -line code ware shell only can take place along the deformation of the rectilinear direction of magnetic grid or grating under the expend with heat and contract with cold condition.
Description
Technical field
The utility model is related to the research field of sensor, and more particularly to a kind of linear encoder shell is in the bar that expands with heat and contract with cold
The structure of linearity is kept under part.
Background technology
The linear encoder of high-grade numerical control equipment is divided into grating scale and magnetic railings ruler according to its measuring principle.The guarantor of its certainty of measurement
Hold and depend on the linearity of its magnetic grid or grating to keep, but magnetic grid or grating are all in sticking in encoder shell,
Therefore shell linearity be maintained at install and backward work operation in material impact is suffered to encoder accuracy.It is in the past straight
Line coding device has only focused on its shell linearity in installation process and has kept, the shell straight line particularly under the influence of self gravitation
Degree keeps.But in work operation in the future, the change of temperature environment causes sheathing material to expand with heat and contract with cold, due to encoder
The stress that each position is born is inconsistent, and without the regulation of corresponding structure, this causes encoder shell in the bar that expands with heat and contract with cold
The deformation of part is not along rectilinear direction residing for grating or magnetic grid, so that encoder system precise decreasing.Conventional straight line
Do not account for temperature environment change during encoder shelling machine to expand with heat and contract with cold caused deformation, encoder is in use often
The situation that system accuracy declines to a great extent occurs.Needing one kind now makes linear encoder keep linearity in thermal boundary shrinkage condition
Structure.
Utility model content
Main purpose of the present utility model be overcome the shortcoming of prior art with it is not enough, there is provided a kind of simple structure, set
Meter is reasonable, easy to use, can make linear encoder that the structure of linearity is kept in thermal boundary shrinkage condition.
In order to achieve the above object, the utility model uses following technical scheme：
A kind of linear encoder shell of the present embodiment keeps the structure of linearity under the conditions of expanding with heat and contract with cold, including opens up
Pore structure on linear encoder shell, straight-line groove, hollow cylindrical structure, the elasticity being arranged on linear encoder shell
Reed structure and fastening structure；The pore structure is centrally located on the line of rabbet joint of straight-line groove, and the hollow cylindrical structure is worn
The pore structure crossed on linear encoder shell, and being engaged with pore structure, the flat section of the elastic spring structure with it is hollow
Cylindrical structure end face outside is adjacent, and the outside bending inwardly of elastic spring structure is adjacent to linear encoder shell, the fastening structure
Linear encoder is fixed in equipment through elastic spring structure, hollow cylindrical structure and pore structure, elastic spring after fastening
There is elastic deformation in chip architecture, elastic spring structure flat section is in contact with hollow cylindrical structure outer surface.
Used as preferred technical scheme, the pore structure two ends are arcuate structure, and center section is rectangular configuration.
Used as preferred technical scheme, the shell of linear encoder is provided with multiple pore structures, the position of multiple pore structures
With shell Central Symmetry.
As preferred technical scheme, the face of cylinder and the hole on linear encoder shell on the outside of the hollow cylindrical structure
The rectangle part precision-fit of structure, and hollow cylindrical structure thickness slightly larger than pore structure thickness.
As preferred technical scheme, the line of rabbet joint of the straight-line groove and the magnetic grid of linear encoder or grating rectilinear direction
It is parallel.
Used as preferred technical scheme, the length of the straight-line groove is equal to the outer cover length of linear encoder.
Used as preferred technical scheme, the elastic spring structure centre position is provided with a circular port, and both sides are symmetrical, in
The nearer bending of the heart bends outwards, and away from center, bending farther out bends inwardly, and bending minimum point inwardly is open and flat less than middle
Part, vertical height of the bending minimum point away from middle flat section is more than hollow cylindrical structure and the thickness difference of pore structure inwardly.
After fastening there is elastic deformation in elastic spring structure, and elastic spring structure flat section connects with hollow cylindrical structure outer surface
Touch.
Used as preferred technical scheme, the fastening structure is fixing screws.
The utility model compared with prior art, has the following advantages that and beneficial effect：
1st, in the technical solution of the utility model, after being fastened using fastening structure, it is fixed directly by elastic spring
Line coding device chi shell, while remaining the space of relative displacement between linear encoder shell and trip bolt, hollow circuit cylinder again
The face of cylinder is caused outside linear encoder with the rectangle part precision-fit of the pore structure on linear encoder shell on the outside of structure
Shell can only occur the deformation of the rectilinear direction along magnetic grid or grating under the conditions of expanding with heat and contract with cold.
2nd, simple structure of the present utility model, easy for installation, is conducive to heavy industrialization application.
Brief description of the drawings
Fig. 1 is the structural representation at the first visual angle of the present utility model；
Fig. 2 is the structural representation at the second visual angle of the present utility model；
Fig. 3 is upward view of the present utility model；
Fig. 4 is rearview of the present utility model；
Fig. 5 is front view of the present utility model；
Fig. 6 is top view of the present utility model；
Fig. 7 is sectional view of the present utility model.
Drawing reference numeral explanation：1- pore structures；2- straight-line grooves；3- hollow cylindrical structures；4th, elastic spring structure；5- is fastened
Structure.
Specific embodiment
The utility model is described in further detail with reference to embodiment and accompanying drawing, but implementation of the present utility model
Mode not limited to this.
Embodiment
As shown in Fig. 1-Fig. 7, the present embodiment linear encoder shell keeps the structure of linearity under the conditions of expanding with heat and contract with cold
Including：Pore structure 1 on linear encoder shell, the straight-line groove 2 on linear encoder shell, hollow cylindrical structure 3,
Elastic spring structure 4 and fastening structure 5；The center center of circle of the pore structure 1 on linear encoder shell is located at straight
On the line of rabbet joint of the straight-line groove 2 on line coding device shell, hollow cylindrical structure 3 passes through the pore structure on linear encoder shell
1, it is engaged with the pore structure 1 on linear encoder shell.Outside the flat section of elastic spring structure 4 and hollow cylindrical structure 3
Side end face is adjacent, and the outside bending inwardly of elastic spring structure 4 is adjacent to linear encoder shell.Fastening structure 5 passes through elastic spring
Be fixed on linear encoder in equipment by structure 4, hollow cylindrical structure 3 and the pore structure on linear encoder shell 1, fastening
Afterwards there is elastic deformation in elastic spring structure 4, and the flat section of elastic spring structure 4 connects with the outer surface of hollow cylindrical structure 3
Touch.
Further, as shown in figure 4, it is arcuate structure that the pore structure 1 on linear encoder shell is two ends, centre is square
The structure of shape straight flange, rectangle straight flange is parallel with magnetic grid or grating rectilinear direction, and the pore structure 1 of the present embodiment is that two ends are circular arc
Shape structure, centre is the structure of rectangle straight flange.Rectangle straight flange is parallel with magnetic grid or grating rectilinear direction to can ensure that pore structure 1 with
After the precision-fit of hollow round column structure 3, when chi shell expands with heat and contract with cold, its deformation direction all the time along rectangle straight flange, so as to ensure chi
Rectilinear direction of deformation direction of the shell when expanding with heat and contract with cold all the time with magnetic grid or grating is consistent.The arc-shaped structure at two ends is to ensure
Hollow cylindrical structure 3 has enough spaces to relatively move when chi shell expands with heat and contract with cold, and convenient processing and manufacturing.
Further, the line of rabbet joint of the straight-line groove 2 on linear encoder shell is parallel with magnetic grid or grating rectilinear direction,
Its length is equal to the outer cover length of linear encoder.Straight-line groove 2 is convenient to be positioned when pore structure 1 is fabricated, it is ensured that shell
The center of upper multiple pore structures 1 is all located on the same straight line parallel with magnetic grid or grating rectilinear direction.
Further, the rectangle straight flange of the outside face of cylinder of hollow cylindrical structure 3 and the pore structure 1 on linear encoder shell
Part precision-fit, and hollow cylindrical structure 3 thickness of the thickness slightly larger than pore structure 1 on linear encoder shell.Directly
, according to depending on outer cover length, the position of pore structure 1 is with shell Central Symmetry for the quantity of the pore structure 1 on line coding device shell.In
The outside face of cylinder of hollow round column structure 3 ensures when chi shell expands with heat and contract with cold that it becomes with the rectangle straight portion precision-fit of pore structure 1
Shape direction is all the time along rectangle straight flange, so as to ensure that deformation direction of the chi shell when expanding with heat and contract with cold is straight with magnetic grid or grating all the time
Line direction is consistent.The thickness of hollow cylindrical structure 3 is used to ensure (to be fixed by fastening structure 5 slightly larger than the thickness of pore structure 1
Screw) fixed ruler shell when, fixing screws will not will be allowed to directly act on chi shell, fixation dead chi shell position is sent out during to expand with heat and contract with cold
The raw deformation along magnetic grid or grating rectilinear direction retains leeway.The quantity of pore structure 1 and position make installation with shell Central Symmetry
Each position uniform force of rear casing, it is ensured that linear encoder precision.
Further, as shown in figure 3, the centre bit of the elastic spring structure 4 is equipped with a circular port, reed both sides are symmetrical,
Away from center, nearer bending bends outwards, and away from center, bending farther out bends inwardly, and bending minimum point inwardly is flat less than middle
The part of exhibition, vertical height of the bending minimum point away from middle flat section is more than hollow cylindrical structure and the thickness of pore structure inwardly
Difference.As shown in fig. 7, the form of elastic spring structure 4 cause by fixing screws fix hollow cylindrical structure 3 and chi shell it
Afterwards, you can using the elastic deformation fixed ruler shell of reed, dead chi shell position will not be thoroughly fixed again, occur during to expand with heat and contract with cold
Deformation along magnetic grid or grating rectilinear direction is allowed some leeway, it is to avoid chi shell occurs the deformation in other directions.
This specific embodiment can make fastening structure 5, and (fastening structure can select fixing screws or other fix dress
Put) fastening after, linear encoder chi shell is fixed by elastic spring 4, at the same remain again linear encoder shell with it is tight
The space of relative displacement between fixing structure 5, the outside face of cylinder of hollow cylindrical structure 3 and the pore structure on linear encoder shell
1 rectangle part precision-fit causes linear encoder shell under the conditions of expanding with heat and contract with cold, and can only occur along magnetic grid or grating
The deformation of rectilinear direction.
Above-described embodiment is the utility model preferably implementation method, but implementation method of the present utility model is not by above-mentioned
The limitation of embodiment, it is other it is any without departing from the change made under Spirit Essence of the present utility model and principle, modify, replace
Generation, combination, simplification, should be equivalent substitute mode, be included within protection domain of the present utility model.
Claims (8)
1. a kind of linear encoder shell keeps the structure of linearity under the conditions of expanding with heat and contract with cold, it is characterised in that including opening up
Pore structure (1) on linear encoder shell, straight-line groove (2), the hollow circuit cylinder knot being arranged on linear encoder shell
Structure (3), elastic spring structure (4) and fastening structure (5)；The pore structure (1) is centrally located at the groove of straight-line groove (2)
On line, the hollow cylindrical structure (3) is engaged through the pore structure (1) on linear encoder shell with pore structure (1),
The flat section of the elastic spring structure (4) is adjacent with hollow cylindrical structure (3) end face outside, and elastic spring structure (4) is outward
Side bending inwardly is adjacent to linear encoder shell, and the fastening structure (5) is through elastic spring structure (4), hollow cylindrical structure
(3) and be fixed on linear encoder in equipment by pore structure (1), after fastening there is elastic deformation, bullet in elastic spring structure (4)
Property reed structure (4) flat section is in contact with hollow cylindrical structure (3) outer surface.
2. linear encoder shell according to claim 1 keeps the structure of linearity under the conditions of expanding with heat and contract with cold, and it is special
Levy and be, pore structure (1) two ends are arcuate structure, center section is the structure of rectangle straight flange, the rectangle straight flange and magnetic
Grid or grating rectilinear direction are parallel.
3. linear encoder shell according to claim 1 keeps the structure of linearity under the conditions of expanding with heat and contract with cold, and it is special
Levy and be, the shell of linear encoder is provided with multiple pore structures (1), and the position of multiple pore structures (1) is with shell Central Symmetry.
4. linear encoder shell according to claim 2 keeps the structure of linearity under the conditions of expanding with heat and contract with cold, and it is special
Levy and be, the rectangle part of hollow cylindrical structure (3) the outside face of cylinder and the pore structure (1) on linear encoder shell
Precision-fit, and hollow cylindrical structure (3) thickness slightly larger than pore structure (1) thickness.
5. linear encoder shell according to claim 1 keeps the structure of linearity under the conditions of expanding with heat and contract with cold, and it is special
Levy and be, the line of rabbet joint of the straight-line groove (2) is parallel with the magnetic grid or grating rectilinear direction of linear encoder.
6. linear encoder shell keeps the structure of linearity under the conditions of expanding with heat and contract with cold according to claim 1 or 5, its
It is characterised by, the length of the straight-line groove (2) is equal to the outer cover length of linear encoder.
7. linear encoder shell according to claim 1 keeps the structure of linearity under the conditions of expanding with heat and contract with cold, and it is special
Levy and be, elastic spring structure (4) center is provided with a circular port, both sides are symmetrical, away from the nearer bending in center outwardly
Bending, away from center, bending farther out bends inwardly, and, less than middle open and flat part, bending is minimum inwardly for bending minimum point inwardly
Vertical height of the point away from middle flat section is more than hollow cylindrical structure and the thickness difference of pore structure, elastic spring structure after fastening
(4) there is elastic deformation, elastic spring structure (4) flat section is in contact with hollow cylindrical structure (3) outer surface.
8. linear encoder shell according to claim 1 keeps the structure of linearity under the conditions of expanding with heat and contract with cold, and it is special
Levy and be, the fastening structure (5) is fixing screws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621256742.1U CN206192379U (en) | 2016-11-23 | 2016-11-23 | Straight -line code ware shell keeps structure of straightness accuracy under expend with heat and contract with cold condition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621256742.1U CN206192379U (en) | 2016-11-23 | 2016-11-23 | Straight -line code ware shell keeps structure of straightness accuracy under expend with heat and contract with cold condition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206192379U true CN206192379U (en) | 2017-05-24 |
Family
ID=58726333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621256742.1U Withdrawn - After Issue CN206192379U (en) | 2016-11-23 | 2016-11-23 | Straight -line code ware shell keeps structure of straightness accuracy under expend with heat and contract with cold condition |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206192379U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2016
- 2016-11-23 CN CN201621256742.1U patent/CN206192379U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170524 Effective date of abandoning: 20181228 |