CN2300087Y - Measuring tool for inside and outside diameter of nonholomic and great circle - Google Patents
Measuring tool for inside and outside diameter of nonholomic and great circle Download PDFInfo
- Publication number
- CN2300087Y CN2300087Y CN 97215407 CN97215407U CN2300087Y CN 2300087 Y CN2300087 Y CN 2300087Y CN 97215407 CN97215407 CN 97215407 CN 97215407 U CN97215407 U CN 97215407U CN 2300087 Y CN2300087 Y CN 2300087Y
- Authority
- CN
- China
- Prior art keywords
- measuring
- meter
- hole
- gauge block
- external diameter
- 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 relates to a measuring tool, particularly a measuring tool for the inside and the outside diameters of a non-holonomic and a great circles. The utility model is composed of a measuring block, a measuring meter and screws, wherein, the measuring block forms an inverse groove shape, the measuring block is fully symmetric along the midline of the measuring block, and the measuring meter is arranged in a through hole of the midline of the measuring block and is fixed by the screws. The utility model has the advantages of simple structure, convenient use, high precision and large measuring range.
Description
The utility model relates to a kind of survey instrument, exactly is external diameter and the interior external diameter survey instrument of great circle in a kind of non-complete circle.
At present, the check measurement diameter of a circle generally is to use slide calliper rule and milscale directly to measure, because the diameter of checking matter is when big, the measurer that detects usefulness must strengthen thereupon, makes troubles to detection.With " around the survey method " of flexible tope around periphery survey circumference, its error is bigger; Convert also cumbersome with the transit survey angle; Particularly, still there is not method preferably at present to the measurement of non-complete circle.The patent No. is 91228796.9 " non-complete circle footpath and full diameter series measurer ", by a union body respectively with the bolt different length measuring claw that is locked, and be assembled into one with measuring head extension bar coupling, adjust its gap by gap adjusting mechanism, realize little chi survey major diameter and non-complete circle footpath, but can only survey external diameter, and change different length measuring claw and often adjustment of gap adjusting mechanism again, make easily to measure to produce error.
It is one simple in structure, easy to use that goal of the invention of the present utility model is to provide, external diameter survey instrument in external diameter and the great circle in the non-complete circle of this state-set standard of error.
The technical scheme of utility model is achieved in that external diameter survey instrument structure comprises in interior external diameter of non-complete circle and the large-scale circle: gauge block, meter, screw; Gauge block is the flute profile of back-off, and along its center line symmetry fully, two ends are measuring claw, and the midline of gauge block has through hole, and threaded hole is vertical with through hole and communicate; Insert in the through hole of gauge block the meter bottom, screws in the threaded hole with screw meter is fixed.Measure equation is: d=AD
2/ CD+CD, wherein, AD by half of chord length of survey circle, promptly between two measuring claws length half, CD for the bow height justified of survey, i.e. data of reading from meter.The utility model is simple in structure, and is easy to use, and meter adopts dial gauge, and measuring accuracy reaches 0.01mm; Adopt clock gauge, measuring accuracy can reach 0.001mm, all in the state-set standard scope, and can measure the inside and outside footpath of circle and non-complete circle, and measurement range is big.
Fig. 1 is the structural representation of external diameter survey instrument in interior external diameter of non-complete circle and the great circle;
1 gauge block, 2 is that meter, 3 is screw among the figure;
Fig. 2 is the structural drawing of gauge block 1
4 is that measuring claw, 5 is that through hole, 6 is threaded hole among the figure;
Fig. 3 is external diameter and the interior external diameter survey instrument measuring principle figure of great circle in the non-complete circle;
D is a diameter among the figure
Bottom is described with reference to the accompanying drawings an embodiment of the present utility model.
As shown in Figure 1 and Figure 2, gauge block 1 is the flute profile of back-off, and along its center line symmetry fully, two ends are measuring claw 4, and the midline of gauge block 1 has through hole 5, and threaded hole 6 and through hole 5 are vertical and communicate; Insert in the through hole 5 of gauge block 1 meter 2 bottoms, screws in screw 3 to make meter 2 fixing in the threaded hole 6.
As shown in Figure 4, AD by half of chord length of survey circle, i.e. half of 4 length of two measuring claws; CD by the bow height of survey circle, i.e. data of reading from meter 2; Derivation formula is: d=AD
2/ CD+CD; Meter 2 adopts dial gauge, and measuring accuracy reaches 0.01mm; Meter 2 is if adopt clock gauge, and measuring accuracy can reach 0.001mm.
Before the measurement, need meter is returned to zero.
The measuring claw 4 of gauge block 1 can grind, and vertically divides the line of two measuring claws 4 equally to guarantee meter 2 table bars.
Claims (1)
1, the interior external diameter survey instrument of external diameter and great circle in a kind of non-complete circle, structure comprises: gauge block (1), meter (2), screw (3); It is characterized in that: gauge block (1) is the flute profile of back-off, and along its center line symmetry fully, two ends are measuring claw (4), and the midline of gauge block (1) has through hole (5), and threaded hole (6) is vertical with through hole (5) and communicate; Insert in the through hole (5) of gauge block (1) meter (2) bottom, screws in screw (3) to make meter (2) fixing in the threaded hole (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97215407 CN2300087Y (en) | 1997-04-25 | 1997-04-25 | Measuring tool for inside and outside diameter of nonholomic and great circle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97215407 CN2300087Y (en) | 1997-04-25 | 1997-04-25 | Measuring tool for inside and outside diameter of nonholomic and great circle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2300087Y true CN2300087Y (en) | 1998-12-09 |
Family
ID=33932581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97215407 Expired - Fee Related CN2300087Y (en) | 1997-04-25 | 1997-04-25 | Measuring tool for inside and outside diameter of nonholomic and great circle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2300087Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102679843A (en) * | 2012-03-30 | 2012-09-19 | 东南大学 | Non-full-circle pi ruler for measuring major outside diameter |
| CN102735153A (en) * | 2009-10-20 | 2012-10-17 | 哈尔滨海太精密量仪有限公司 | High-precision special checking tool for circle arc radius of double-R uncompleted circle |
| WO2015089689A1 (en) * | 2013-12-20 | 2015-06-25 | 苏州蓝王机床工具科技有限公司 | Micrometer for inner and outer diameter detection |
-
1997
- 1997-04-25 CN CN 97215407 patent/CN2300087Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102735153A (en) * | 2009-10-20 | 2012-10-17 | 哈尔滨海太精密量仪有限公司 | High-precision special checking tool for circle arc radius of double-R uncompleted circle |
| CN102679843A (en) * | 2012-03-30 | 2012-09-19 | 东南大学 | Non-full-circle pi ruler for measuring major outside diameter |
| CN102679843B (en) * | 2012-03-30 | 2014-11-19 | 东南大学 | Non-full-circle pi ruler for measuring major outside diameter |
| WO2015089689A1 (en) * | 2013-12-20 | 2015-06-25 | 苏州蓝王机床工具科技有限公司 | Micrometer for inner and outer diameter detection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |