CN204404925U - High precision inspection is straight, angulation and setting-out polymeter - Google Patents
High precision inspection is straight, angulation and setting-out polymeter Download PDFInfo
- Publication number
- CN204404925U CN204404925U CN201520097392.8U CN201520097392U CN204404925U CN 204404925 U CN204404925 U CN 204404925U CN 201520097392 U CN201520097392 U CN 201520097392U CN 204404925 U CN204404925 U CN 204404925U
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- China
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- protractor
- vernier scale
- interior
- scale
- slideway
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Abstract
High precision inspection is straight, angulation and setting-out polymeter, belongs to protractor technical field.It comprises ruler, interior protractor and outer protractor, interior protractor and outer protractor concentric are arranged on ruler, interior protractor comprises interior protractor main scale, interior protractor main scale outer ring arranges interior protractor vernier scale slideway, be slidably matched in interior protractor vernier scale slideway interior protractor vernier scale, outer protractor is provided with outer protractor main scale, and outer protractor main scale outer ring arranges outer protractor vernier scale slideway, and be slidably matched in outer protractor vernier scale slideway outer protractor vernier scale.It is straight that the utility model can be used for high precision inspection, can be used for accurate angulation and setting-out, have several functions.
Description
Technical field
The utility model belongs to protractor technical field, is specifically related to that high precision inspection is straight, angulation and setting-out polymeter.
Background technology
At present, do not examine straight instrument in prior art, namely not having in prior art can the workpiece whether true vertical (90 °) accurately can determine the instruments of inspection of error amount at accurate detection zone right angle.It is adopt examined workpiece " right angle " to be placed on the higher standard of a precision and to examine ruler and compare that traditional orthogonal work piece detects, see that whether it strictly coincide with standard ruler to judge, the method judged is, coincide if basic and can think that this workpiece conforms to quality requirements, if misfit (part workpiece does not strictly coincide), when but error is lower than a certain value, can be considered qualified and treat, namely think that quality reaches a standard.Specifically, checking reaches a standard with the method do not passed a test is, detection workpiece is placed on the straight utensil of template to compare, if there is gap, then in order to be placed in this gap with certain limit thing (such as matchstick), be then considered as outward reaching a standard in a certain distance of distance right-angled apices, if in a certain distance, be considered as not passing a test, but actual error is how many on earth, really unknown.
Utility model content
For prior art Problems existing, the purpose of this utility model is to design the technical scheme providing high precision to examine straight, angulation and setting-out polymeter.
Described high precision inspection is straight, angulation and setting-out polymeter, it is characterized in that comprising ruler, interior protractor and outer protractor, described interior protractor and outer protractor concentric are arranged on ruler, described interior protractor is provided with interior protractor main scale, described interior protractor main scale outer ring arranges interior protractor vernier scale slideway, be slidably matched in described interior protractor vernier scale slideway interior protractor vernier scale, described outer protractor is provided with outer protractor main scale, described outer protractor main scale outer ring arranges outer protractor vernier scale slideway, be slidably matched in described outer protractor vernier scale slideway outer protractor vernier scale.
Described high precision inspection is straight, angulation and setting-out polymeter, it is characterized in that described interior protractor being arranged interior protractor vernier scale slideway pickup groove, interior protractor vernier scale slideway is fixedly installed in described interior protractor vernier scale slideway pickup groove, described interior protractor vernier scale slideway is slidably matched interior protractor vernier scale, described interior protractor vernier scale comprise to be slidably matched with interior protractor vernier scale slideway in protractor vernier scale chute and vernier scale in coordinating with interior protractor vernier scale slideway pickup groove.
Described high precision inspection is straight, angulation and setting-out polymeter, it is characterized in that described outer protractor being arranged outer protractor vernier scale slideway pickup groove, outer protractor vernier scale slideway is fixedly installed in described outer protractor vernier scale slideway pickup groove, described outer protractor vernier scale slideway is slidably matched outer protractor vernier scale, and described outer protractor vernier scale comprises the outer protractor vernier scale chute be slidably matched with outer protractor vernier scale slideway and the outer vernier scale coordinated with outer protractor vernier scale slideway pickup groove.
Described high precision inspection is straight, angulation and setting-out polymeter, it is characterized in that the angulation scope of described interior protractor main scale and outer protractor main scale is 0 ~ 180 °.
Described high precision inspection is straight, angulation and setting-out polymeter, and it is characterized in that described ruler meter full scale is 0 ~ 60cm, precision is 1mm.
Described high precision inspection is straight, angulation and setting-out polymeter, it is characterized in that described interior protractor vernier scale and outer protractor vernier scale precision are 2 '.
Described high precision inspection is straight, angulation and setting-out polymeter, it is characterized in that described interior protractor, outer protractor coordinates with ruler grafting respectively.
It is straight that the utility model can be used for high precision inspection, can be used for accurate angulation and setting-out, have several functions.Compared with prior art there is following beneficial effect:
1, one ruler multi-usage; Both can be used as that inspection is straight, the initial line of angulation, and can be used for again setting-out and measure length, setting-out scope 0 ~ 60cm, precision is 1mm.
2, interior protractor diameter 30cm and outer protractor diameter 60cm is adopted, when examining straight or angulation, the interior protractor of 15cm< arm of angle length <30cm, the outer protractor of arm of angle length >30cm.
3, inside and outside protractor main scale adopts inner and outer ring frame of reference respectively, forward and inverse both direction can be adopted to carry out, and inspection is straight, angulation reading, as shown in Figure 1, and have the pin-point reading system of the vernier scale corresponding with main scale direction, if Figure 10 is vernier scale pin-point reading system in inverse, positive both direction, as the outer vernier scale pin-point reading system that Figure 11 is along inverse, positive both direction, with the reading custom of the straight angulation person of satisfied difference inspection.
4, straight, the angulometer of this inspection, the precision (vernier scale) of measuring scale system can reach 2 ', and high precision inspection is straight, angulation scope is 0 ~ 151 ° 30 '; If when carrying out rough angulation (student uses), desirable lower vernier scale is measured, and when now precision is 0.5 ° (30 '), angulation scope is 0 ° ~ 180 °.
5, ruler inner side edge overlaps with protractor 0 ° and 180 ° of grooves, this inspection is straight, angulometer checks whether angle is vertically used as a whole, inside and outside protractor is as a whole, vernier scale can take off from slideway, slideway can unload from protractor, ruler also can separate with entire amount hornwork and uses respectively, is used for rough angulation and setting-out.
Accompanying drawing explanation
Fig. 1 is one-piece construction schematic diagram of the present utility model;
Fig. 2 is the syndeton schematic diagram of interior protractor and interior protractor vernier scale in the utility model;
Fig. 3 is the syndeton schematic diagram of the utility model China and foreign countries' protractor and outer protractor vernier scale;
Fig. 4 is interior protractor inspection deixis intention in the utility model;
Fig. 5 is that in the utility model, interior protractor examines straight out of plumb schematic diagram;
Fig. 6 is interior protractor angulation schematic diagram in the utility model;
Fig. 7 is the utility model China and foreign countries protractor inspection deixis intention;
Fig. 8 is that the utility model China and foreign countries protractor examines straight out of plumb schematic diagram;
Fig. 9 is the utility model China and foreign countries angulation angulation schematic diagram;
Figure 10 is interior vernier scale two class vernier graduation schematic diagram in the utility model;
Figure 11 is the utility model China and foreign countries vernier scale two class vernier graduation schematic diagram;
Figure 12 is the utility model protractor precision schematic diagram.
In figure: 1-ruler; The 2-protractor center of circle; Protractor in 3-; Protractor vernier scale slideway pickup groove in 301-; Protractor main scale in 4-; Protractor vernier scale slideway in 5-; Protractor vernier scale in 6-; Protractor vernier scale chute in 601-; Vernier scale in 602-; The outer protractor of 7-; The outer protractor vernier scale slideway pickup groove of 701-; The outer protractor main scale of 8-; The outer protractor vernier scale slideway of 9-; The outer protractor vernier scale of 10-; The outer protractor vernier scale chute of 1001-; The outer vernier scale of 1002-; 11-protractor center line.
Embodiment
The utility model is further illustrated below in conjunction with Figure of description.
As shown in Figure 1,2 and 3, high precision inspection is straight, angulation and setting-out polymeter comprise ruler 1, interior protractor 3 and outer protractor 7, and interior protractor 3 and outer protractor 7 are arranged on ruler 1 for center of circle concentric grafting with the protractor center of circle 2.Interior protractor 3 is provided with interior protractor main scale 4, interior protractor vernier scale slideway pickup groove 301 is set outside interior protractor main scale 4, be fixedly installed interior protractor vernier scale slideway 5 in interior protractor vernier scale slideway pickup groove 301, interior protractor vernier scale slideway 5 is slidably matched interior protractor vernier scale 6.Interior protractor vernier scale 6 comprise to be slidably matched with interior protractor vernier scale slideway 5 in protractor vernier scale chute 601 and vernier scale 602 in coordinating with interior protractor vernier scale slideway pickup groove 301.Outer protractor 7 is provided with outer protractor main scale 8, outer protractor vernier scale slideway pickup groove 701 is set outside outer protractor main scale 8, be fixedly installed outer protractor vernier scale slideway 9 in outer protractor vernier scale slideway pickup groove 701, outer protractor vernier scale slideway 9 is slidably matched outer protractor vernier scale 10.Outer protractor vernier scale 10 comprises the outer protractor vernier scale chute 1001 be slidably matched with outer protractor vernier scale slideway 9 and the outer vernier scale 1002 coordinated with outer protractor vernier scale slideway pickup groove 701.
Above-mentioned interior protractor main scale 4 and the angulation scope of outer protractor main scale 8 are 0 ~ 180 °; Ruler 1 meter full scale is 0 ~ 60cm, and be 0 in the middle of it, its both sides increase successively, and respectively from 0 ~ 30cm, precision is 1mm; Interior protractor vernier scale 6 and outer protractor vernier scale 10 precision are 2 '.
One, precision principle
As shown in figure 12, in the utility model, the radian of 30 lattice and 29 on protractor main scale 4 ° of vernier scale (interior vernier scale 602 and outer vernier scale 1002) is equal, be assigned on 30 lattice of vernier scale with regard to 1 ° like this, the lattice made it on vernier scale are just equivalent to 2 ', and namely the precision of the straight angulometer of this inspection reaches 2 '.
Two, straight angulation method is examined
1, Nogata method is examined
Because ruler 1 inner side edge and outer protractor 7,0 ° of interior protractor 3 and 180 ° of grooves overlap.Ruler 1 and outer protractor 7, interior protractor 3 are fitted together as Fig. 1 fits like a glove, tested " right angle " summit is overlapped with the protractor center of circle 2, center left (or right side) is while with tested right angle while overlap, if another side overlaps with protractor center line 11, then this angle is right angle, if do not overlap, then by vernier scale while coincide with this tested limit, and reading the number of degrees (α) at now this angle, then error is 90 ° of-α, determines that can this right angle by checking and accepting according to error size and the straight precision of inspection.
Citing: as described in Figure 4, this angle is vertical state, and reading is 90 °; Protractor examines straight situation as shown in Figure 5, and reading is 87 ° 18 ', and its error is 90 °-87 ° 18 '=2 ° 42 '; As shown in Figure 7, this angle is vertical state, and reading is 90 °; As shown in Figure 8, outer protractor examines straight situation, and reading is 88 ° 19 ', and its error is 90 °-88 ° 19 '=1 ° 41 ', eliminates according to permissible error (such as 10 ') size, and so these two workpiece all can not reach a standard.Its precision is 2 '.
2, angle-measuring method
When taking measurement of an angle, ruler 1 can be unloaded down.For measured angle in 0 ° of < θ <, 150 ° of 30 ' scope, can high precision take measurement of an angle, first ruler 1 is dismantled, angular vertex to be measured overlaps with protractor summit, measured angle initial line overlaps with protractor 0 ° or 180 ° of grooves, whole sideline and outer protractor main scale 8 scale compare reading, first from reading (being accurate to 0.5 °) on outer protractor main scale 8, the whole limit of the zero graduation line of vernier scale and measured angle is allowed to overlap again, redundance sees that on vernier scale, which bar groove and main scale scale mark are point-blank, now, on vernier scale, the reading of this line is exactly the reading of redundance on main scale, on main scale and vernier scale reading and, be the number of degrees of measured angle.
Citing: state as shown in Figure 6, interior protractor angulation, main scale reading 46 °, vernier scale reading 10 ', then the measured angle number of degrees are 46 ° 10 '; As shown in Figure 9, the accurate angulation of outer protractor, main scale reading 58 °, vernier scale reading 19 ', then the number of degrees of this measured angle are 58 ° 19 '.Its precision is 2 '.
3, rough angulation, setting-out citing are slightly.
Usable range
High precision of the present utility model inspection is straight, angulation and the application of setting-out polymeter widely.
1, high precision inspection is straight; The accurate processing of factory, workpiece inspection is straight.
2, sophisticated design; For the slip-stick artist being engaged in the aspect such as machinery, architectural design, and other association areas researchist, carry out accurate angulation and setting-out very convenient.
3, common angulation, setting-out; In this case, can not use vernier scale, primary school, middle school, university and postgraduate etc. all can use, and precision is 0.5 ° (30 '), and its precision is not high.
Claims (7)
1. high precision inspection is straight, angulation and setting-out polymeter, it is characterized in that comprising ruler (1), interior protractor (3) and outer protractor (7), described interior protractor (3) and outer protractor (7) concentric are arranged on ruler (1), described interior protractor (3) comprises interior protractor main scale (4), described interior protractor main scale (4) outer ring arranges interior protractor vernier scale slideway (5), be slidably matched in described interior protractor vernier scale slideway (5) interior protractor vernier scale (6), described outer protractor (7) is provided with outer protractor main scale (8), described outer protractor main scale (8) outer ring arranges outer protractor vernier scale slideway (9), be slidably matched in described outer protractor vernier scale slideway (9) outer protractor vernier scale (10).
2. high precision inspection as claimed in claim 1 is straight, angulation and setting-out polymeter, it is characterized in that described interior protractor (3) arranges interior protractor vernier scale slideway pickup groove (301), interior protractor vernier scale slideway (5) is fixedly installed in described interior protractor vernier scale slideway pickup groove (301), described interior protractor vernier scale slideway (5) is slidably matched interior protractor vernier scale (6), described interior protractor vernier scale (6) comprises the interior protractor vernier scale chute (601) be slidably matched with interior protractor vernier scale slideway (5) and the interior vernier scale (602) coordinated with interior protractor vernier scale slideway pickup groove (301).
3. high precision inspection as claimed in claim 1 is straight, angulation and setting-out polymeter, it is characterized in that described outer protractor (7) arranges outer protractor vernier scale slideway pickup groove (701), outer protractor vernier scale slideway (9) is fixedly installed in described outer protractor vernier scale slideway pickup groove (701), described outer protractor vernier scale slideway (9) is slidably matched outer protractor vernier scale (10), described outer protractor vernier scale (10) comprises the outer protractor vernier scale chute (1001) be slidably matched with outer protractor vernier scale slideway (9) and the outer vernier scale (1002) coordinated with outer protractor vernier scale slideway pickup groove (701).
4. straight, the angulation of high precision inspection as claimed in claim 1 and setting-out polymeter, is characterized in that the angulation scope of described interior protractor main scale (4) and outer protractor main scale (8) is 0 ~ 180 °.
5. straight, the angulation of high precision inspection as claimed in claim 1 and setting-out polymeter, it is characterized in that described ruler (1) meter full scale is 0 ~ 60cm, precision is 1mm.
6. straight, the angulation of high precision inspection as claimed in claim 1 and setting-out polymeter, is characterized in that described interior protractor vernier scale (6) and outer protractor vernier scale (10) precision are 2 '.
7. straight, the angulation of high precision inspection as claimed in claim 1 and setting-out polymeter, is characterized in that described interior protractor (3), outer protractor (7) coordinates with ruler (1) grafting respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520097392.8U CN204404925U (en) | 2015-02-11 | 2015-02-11 | High precision inspection is straight, angulation and setting-out polymeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520097392.8U CN204404925U (en) | 2015-02-11 | 2015-02-11 | High precision inspection is straight, angulation and setting-out polymeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204404925U true CN204404925U (en) | 2015-06-17 |
Family
ID=53428776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520097392.8U Expired - Fee Related CN204404925U (en) | 2015-02-11 | 2015-02-11 | High precision inspection is straight, angulation and setting-out polymeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204404925U (en) |
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2015
- 2015-02-11 CN CN201520097392.8U patent/CN204404925U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150617 Termination date: 20160211 |