CN201066272Y - A digital display shift comparing instrument - Google Patents
A digital display shift comparing instrument Download PDFInfo
- Publication number
- CN201066272Y CN201066272Y CNU2007200802949U CN200720080294U CN201066272Y CN 201066272 Y CN201066272 Y CN 201066272Y CN U2007200802949 U CNU2007200802949 U CN U2007200802949U CN 200720080294 U CN200720080294 U CN 200720080294U CN 201066272 Y CN201066272 Y CN 201066272Y
- Authority
- CN
- China
- Prior art keywords
- clamp column
- grating
- measuring device
- electrical box
- sounding rod
- 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 - Fee Related
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Abstract
The utility model discloses a digital display displacement comparer which consists of an electrical box (1), a conical connecting sleeve (2), a clamp column (3), a grating displacement measuring device (4), a spring (5), an inner bushing (6), a measuring rod (7) and a measuring head (8); the electrical box (1) is installed at the upper part of the clamp column (3) by the conical connecting sleeve (2); the grating displacement measuring device (4) is arranged in the clamp column (3); the front side of the electrical box (1) is provided with a display part and an operation button. The utility model applies the grating principle and organically integrates light, mechanics and electrics, and thus has the advantages of large scope of measurement, high precision and a plurality of functions. The scope of measurement is up to 5mm.
Description
Technical field
The utility model relates to a kind of length precision measurement apparatus, specifically is that a kind of numeral shows displacement comparator, and it can detect the measured of micron order precision in than wide-measuring range.
Background technology
The comparator that is used for linear measure longimetry at present mostly is mechanical type, and this mechanical displacement comparator measurement range is little, and precision is low, its measurement range mostly is 0.02～0.2mm, precision is 0.1～2 μ m, and the high more comparator measurement range of precision is more little, restricted also more.
Summary of the invention
The purpose of this utility model is to provide the numeral that a kind of measurement range is big, precision is high to show displacement comparator, the measurement range of this comparator is 5mm, the error of indication is less than or equal to 0.4 μ m in the 0.5mm scope, and the error of indication is less than or equal to 1 μ m in the 5mm scope.
For achieving the above object, the solution that the utility model adopts is: this displacement comparator comprises clamp column, sounding rod and measuring head, sounding rod is installed in the clamp column, measuring head is connected in the sounding rod lower end, the electrical box that can handle grating signal is installed on the top of clamp column, small-sized grating displacement measuring device is installed in clamp column.
Between grating displacement measuring device and the sounding rod spring and interior cover are installed also in the above-mentioned clamp column, interior cover is installed in the thread bush top in the clamp column, spring is between the split ring of interior cover and grating displacement measuring device, and the gauge head of grating displacement measuring device contacts with the upper surface of sounding rod.
Above-mentioned electrical box is fixed on the clamp column by the taper connection cover.
When using the utility model to measure, the gauger presses lifting gear, and measuring head and sounding rod move up, the gauge head that promotes grating displacement measuring device rises synchronously, the grating parts produce displacement signal, and this signal is delivered to by cable in the electrical box on top after installing inner circuit rough handling.Include one chip microcomputer system, storage unit and an application software in the electrical box, electrical box is provided with display unit, function button and output interface.The signal of grating sensor is realized various measurement functions by each button after the system handles in electrical box.
The utility model has been owing to adopted the grating principle, and organically combines light, mechanical, electrical, so measurement range is big, precision is high, function is many; Reading adopts the display screen numeral to show in addition, does not therefore have the parallax of dial plate reading, adds whole device small volume and less weight, moves steadily, therefore can effectively improve detection speed and accuracy of detection.
Description of drawings
Fig. 1 is a cut-open view of the present utility model.
Fig. 2 is a surface structure synoptic diagram of the present utility model.
Among the figure: cover 7-sounding rod 8-measuring head 9-thread bush 10-gauge head 11-split ring in the 1-electrical box 2-taper connection cover 3-clamp column 4-grating displacement measuring device 401-grating parts 5-spring 6-
Embodiment
Below in conjunction with drawings and Examples the utility model is described in further detail.
As shown in Figure 1 and Figure 2, the utility model is made up of electrical box 1, taper connection cover 2, clamp column 3, grating displacement measuring device 4, spring 5, interior cover 6, sounding rod 7 and measuring head 8, and clamp column 3 is the same with the clamp column of traditional comparator, and diameter is φ 28mm.Grating displacement measuring device 4 is installed in the clamp column 3, it includes grating parts 401, sounding rod 7 is installed in the thread bush 9 in the clamp column 3, measuring head 8 is connected in the lower end of sounding rod 7, the utility model is owing to sounding rod 7 employings is the φ 6mm sounding rod consistent with traditional comparator, so its measuring head 8 can exchange use with the various measuring heads of traditional comparator.Spring 5 and interior cover 6 also are installed in clamp column 3, and interior cover 6 is installed in the top of thread bush 9, and spring 5 is between the split ring 11 of interior cover 6 and grating displacement measuring device 4, and the gauge head 10 of grating displacement measuring device 4 contacts with the upper surface of sounding rod 7.Spring 5 has three effects: the one, guarantee that the utility model comparator has certain ergometry; The 2nd, can play buffer protection function to grating displacement measuring device 4; The 3rd, make comparator upper and lower moving steadily in measuring process, thereby guarantee the accuracy of measurement.
Claims (3)
1. a numeral shows displacement comparator, comprise clamp column (3), sounding rod (7) and and measuring head (8), sounding rod (7) is installed in the clamp column (3), measuring head (8) is connected in sounding rod (7) lower end, it is characterized in that: the electrical box (1) that can handle grating signal is installed on the top of clamp column (3), small-sized grating displacement measuring device (4) is installed in clamp column (3).
2. a kind of numeral according to claim 1 shows displacement comparator, it is characterized in that: spring (5) and interior cover (6) also are installed between grating displacement measuring device (4) and the sounding rod (7) in clamp column (3), interior cover (6) is installed in the top of the thread bush (9) in the clamp column (3), spring (5) is positioned between the split ring (11) of cover (6) and grating displacement measuring device (4), and the gauge head (10) of grating displacement measuring device (4) contacts with the upper surface of sounding rod (7).
3. a kind of numeral according to claim 1 and 2 shows displacement comparator, and it is characterized in that: electrical box (1) is fixed on the clamp column (3) by taper connection cover (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200802949U CN201066272Y (en) | 2007-07-13 | 2007-07-13 | A digital display shift comparing instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200802949U CN201066272Y (en) | 2007-07-13 | 2007-07-13 | A digital display shift comparing instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201066272Y true CN201066272Y (en) | 2008-05-28 |
Family
ID=39483455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200802949U Expired - Fee Related CN201066272Y (en) | 2007-07-13 | 2007-07-13 | A digital display shift comparing instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201066272Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101788268A (en) * | 2010-03-17 | 2010-07-28 | 合肥工业大学 | Ultra-precise fiber grating displacement sensor |
| CN103363917A (en) * | 2012-03-28 | 2013-10-23 | 上海重矿连铸技术工程有限公司 | Laser digital display measuring instrument of distance between two points, and measuring method of distance between two points |
-
2007
- 2007-07-13 CN CNU2007200802949U patent/CN201066272Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101788268A (en) * | 2010-03-17 | 2010-07-28 | 合肥工业大学 | Ultra-precise fiber grating displacement sensor |
| CN101788268B (en) * | 2010-03-17 | 2012-01-18 | 合肥工业大学 | Ultra-precise fiber grating displacement sensor |
| CN103363917A (en) * | 2012-03-28 | 2013-10-23 | 上海重矿连铸技术工程有限公司 | Laser digital display measuring instrument of distance between two points, and measuring method of distance between two points |
| CN103363917B (en) * | 2012-03-28 | 2016-07-13 | 上海重矿连铸技术工程有限公司 | Laser digital display point to point is from measuring instrument and point to point distance measurement method |
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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: 20080528 Termination date: 20120713 |