CN203518950U - Open type linear guide rail grid stroke displacement sensor - Google Patents
Open type linear guide rail grid stroke displacement sensor Download PDFInfo
- Publication number
- CN203518950U CN203518950U CN201320671448.7U CN201320671448U CN203518950U CN 203518950 U CN203518950 U CN 203518950U CN 201320671448 U CN201320671448 U CN 201320671448U CN 203518950 U CN203518950 U CN 203518950U
- Authority
- CN
- China
- Prior art keywords
- guide rail
- displacement sensor
- linear guide
- installing plate
- raster
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model discloses an open type linear guide rail grid stroke displacement sensor. According to the precision grid stroke displacement sensor, a steel band scale raster is attached to the upper surface of a linear guide rail, a reading head is fixed on a reading head installing plate through a screw, the reading head installing plate is provided with a long hole and is fixed at the side surface of a slide block through a screw, and the height can be adjusted. The steel band scale raster is not fragile compared to a glass raster, the service life is longer, and the deformation is smaller. The structure of the linear guide rail and the slide block realizes relative motion of the reading head and the steel band scale raster so that the whole grid stroke displacement sensor has the advantages of simple structure, small size, high sensitivity and high precision. Besides, the whole structure is made of a steel material, which is consistent with the material of a detected element, the coefficient of linear expansion remains basically consistent, the temperature characteristic of a raster ruler is good, and the measuring precision is high.
Description
Technical field
The accurate displacement that the utility model relates in a kind of machining process is measured and control technology, belongs to Technology of Precision Measurement field.
Background technology
Domestic grating scale key component adopts transmission-type glass scale grating and cast aluminium shell mostly at present, adopts five little bearings (one side 2 points) positioning principle to realize the relative motion of read head and scale grating.The life-span of glass raster is short, and the linear expansion coefficient difference of glass and steel is very large, and temperature characterisitic is bad, and temperature characterisitic directly affects the precision of optical grid line displacement sensor.Develop less, gentlier, sensitiveer reflective contact metal optical grid line displacement sensor become problem demanding prompt solution.
Summary of the invention
The technical problems to be solved in the utility model is that to overcome original transmission-type glass raster chi life-span short, and sensitivity is low, and the inconsistent problem of each parts coefficient of thermal expansion, provides a kind of open line
Property guide rail optical grid line displacement sensor.
This novel technical scheme providing, a kind of opening linear guide rail optical grid line displacement sensor, linear guides upper surface fluting posts Steel tape surveyor's rod grating, installing plate is screwed in slide block side by slotted hole, on installing plate, open slotted hole, read head is fixed on installing plate by adjustable slotted hole, on installing plate, opens, guide rail is fixed on bed piece by screw, slide block connecting working table
.
The present invention selects the linear guides that volume is little, precision is high, and pastes Steel tape surveyor's rod grating at linear guide rail upper surface fluting.Linear guides linearity is good, stationarity is good, precision is high, highly sensitive, thereby improve the precision of grating scale.Slide block side is fixed with read head installing plate by screw, opens slotted hole on installing plate, adjustable up and down, and read head is contained on read head installing plate, can regulate very easily the distance between read head and Steel tape surveyor's rod grating.Slide block connecting working table, guide rail is fixed on bed piece by screw.During lathe work, drive slide block movement, read head and grating scale just produce relative motion, produce Moire fringe, output signal.Adopt Steel tape surveyor's rod grating, detected element is also steel, the good temp characteristic of grating scale.
The present invention's advantage compared with prior art:
1. the utility model adopts linear guides and slide block to realize the relative motion of read head and grating scale, compact conformation, volume is little, and linear guides rectilinearity is good, precision is high, highly sensitive.
2. the inside and outside parts of the utility model and detected element material are steel, good temp characteristic.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present utility model.
Accompanying drawing 2 is sectional view of the present utility model.
Embodiment
For making object, technical scheme and the advantage of this utility model clearer, below in conjunction with accompanying drawing, the utility model is described in further detail.
In accompanying drawing 1,1 is high-accuracy linear guide, and 2 is slide block, and it is read head installing plate that guide rail upper surface posts Steel tape surveyor's rod grating 3,4, on read head installing plate, opens slotted hole, and read head 5 is fixed on installing plate.Slide block connecting working table, guide rail is fixed on bed piece by screw.During lathe work, drive slide block movement, read head and grating scale just produce relative motion, produce Moire fringe, output signal.Adopt Steel tape surveyor's rod grating, detected element is also steel, the good temp characteristic of grating sensor.
Claims (1)
1. an opening linear guide rail optical grid line displacement sensor, it is characterized in that, linear guides upper surface fluting posts Steel tape surveyor's rod grating, installing plate is screwed in slide block side by slotted hole, on installing plate, open slotted hole, read head is fixed on installing plate by adjustable slotted hole, on installing plate, opens, guide rail is fixed on bed piece by screw, slide block connecting working table
.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320671448.7U CN203518950U (en) | 2013-10-29 | 2013-10-29 | Open type linear guide rail grid stroke displacement sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320671448.7U CN203518950U (en) | 2013-10-29 | 2013-10-29 | Open type linear guide rail grid stroke displacement sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203518950U true CN203518950U (en) | 2014-04-02 |
Family
ID=50377870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320671448.7U Expired - Lifetime CN203518950U (en) | 2013-10-29 | 2013-10-29 | Open type linear guide rail grid stroke displacement sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203518950U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104713484A (en) * | 2015-03-09 | 2015-06-17 | 北京奥特普森精密机械有限公司 | Closed type optical grating linear displacement sensor structure for ultra-precise machine tool |
| CN106583885A (en) * | 2017-02-08 | 2017-04-26 | 武汉延锋时代检测技术股份有限公司 | Robot pipe welding device and method |
| CN111735393A (en) * | 2020-07-13 | 2020-10-02 | 西安交通大学 | Device and method for synchronously measuring linear displacement and straightness of guide rail in situ |
-
2013
- 2013-10-29 CN CN201320671448.7U patent/CN203518950U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104713484A (en) * | 2015-03-09 | 2015-06-17 | 北京奥特普森精密机械有限公司 | Closed type optical grating linear displacement sensor structure for ultra-precise machine tool |
| CN106583885A (en) * | 2017-02-08 | 2017-04-26 | 武汉延锋时代检测技术股份有限公司 | Robot pipe welding device and method |
| CN111735393A (en) * | 2020-07-13 | 2020-10-02 | 西安交通大学 | Device and method for synchronously measuring linear displacement and straightness of guide rail in situ |
| CN111735393B (en) * | 2020-07-13 | 2021-11-19 | 西安交通大学 | Device and method for synchronously measuring linear displacement and straightness of guide rail in situ |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |