CN2854495Y - Vernier-like screw-thread micrometer - Google Patents
Vernier-like screw-thread micrometer Download PDFInfo
- Publication number
- CN2854495Y CN2854495Y CN 200520142423 CN200520142423U CN2854495Y CN 2854495 Y CN2854495 Y CN 2854495Y CN 200520142423 CN200520142423 CN 200520142423 CN 200520142423 U CN200520142423 U CN 200520142423U CN 2854495 Y CN2854495 Y CN 2854495Y
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- CN
- China
- Prior art keywords
- vernier
- microdrum
- fixed muffle
- fixed
- degree
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- Expired - Fee Related
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- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
The utility model is a screw micrometer, a similar-vernier screw micrometer with similar vernier in particular, which is a new-type screw micrometer designed on the basis of existing screw micrometer and considering of structural principle of vernier calipers. Its structure is characterized that vernier gauges are positioned in axial direction on circumference face of a fixed casing of the existing screw micrometer. The vernier gauge comprises a majority of straight lines in parallel to axial with the same space. Since the similar-vernier screw micrometer combines measurement principle of existing screw micrometers and vernier calipers and integrates their advantages, the measurement accuracy can be greatly improved, so that the measurement accuracy can be up to 0.0002mm.
Description
Technical field
The utility model is a kind of micrometer caliper, particularly a kind of class vernier micrometer caliper that is provided with the class vernier graduation, and it is on the basis of existing micrometer caliper, a kind of novel micrometer caliper that designs in conjunction with the structural principle of vernier caliper.
Background technology
Aspect linear measure longimetry, often its minimum scale is carried out machinery with the method for vernier and pitch and amplify, improve the measurement of length precision with this.Vernier caliper is that the method for the vernier of utilization is carried out the machinery amplification, and micrometer caliper then is to utilize the method for pitch to carry out the machinery amplification.From precision, the precision of vernier caliper can be divided into 0.1mm, 0.05mm, 0.02mm by the difference of vernier lattice number, and the precision of micrometer caliper then can reach 0.01mm.In order further to improve measuring accuracy, we at first have a look at the measuring accuracy that how to improve common calliper, can increase the vernier lattice number of vernier caliper for this reason, but because every lattice differ 1/n (mm) on main scale and the vernier, n is big more, parallax is just big more, just influence the precision of measuring more, so want that by increasing the measuring accuracy that vernier lattice number improves common calliper be impracticable, so we have to goal displacement to how further to improve on the measuring accuracy of common micrometer caliper.
Summary of the invention
The purpose of this utility model is a kind of class vernier micrometer caliper that can reduce parallax greatly of design, class vernier micrometer caliper is the measuring principle of existing micrometer caliper and vernier caliper to be combined and a kind of novel micrometer caliper designed, its structure, shape are with big or small the same with existing micrometer caliper, just increased a class vernier graduation, but measuring accuracy can be brought up to 0.0002mm.
The utility model is realized as follows: class vernier micrometer caliper described in the utility model comprises U-shaped chi frame, gage button, micrometric screw, fixed muffle, microdrum, gage button is fixed in the inboard of U-shaped chi frame one end, fixed muffle is fixed in the outside of the U-shaped chi frame other end, micrometric screw and fixed muffle bolt, the inner of micrometric screw is relative with gage button, the outer end of micrometric screw is fixed in the microdrum, and microdrum then is socketed on the fixed muffle; The outer rim of microdrum is carved with the circumference scale, one master calibration chi is arranged on the fixed muffle, this master calibration chi comprise one vertically center line and the main scale scale on this center line next door, it is characterized in that: also be carved with the class vernier graduation on the periphery of fixed muffle vertically, described class vernier graduation is by many equally spaced rectilinear(-al)s that parallel with center line.
The last item straight line of described class vernier graduation and the angular distance of center line are 14.256 degree, and the angular distance between other each straight lines is 7.056 degree; The angular distance of the every degree of circumference scale on the described microdrum is 7.2 degree.
Good effect of the present utility model is as follows: because class vernier micrometer caliper is that the measuring principle of existing micrometer caliper and vernier caliper is combined, make it have both advantages, so improved measuring accuracy greatly, its measuring accuracy can be brought up to 0.0002mm; In addition, its structure, shape are with big or small the same with existing micrometer caliper, and its manufacturing cost is suitable with existing micrometer caliper, and under the prerequisite that does not increase manufacturing cost, measuring accuracy but can improve greatly, and this is a very big superiority.
Description of drawings
Fig. 1 is the utility model structural drawing
Fig. 2 fixed muffle enlarged drawing
Fig. 3 fixed muffle side stretch-out view
Among the figure: 1U shape chi frame 2 gage buttons 3 micrometric screws
4 fixed muffles, 5 microdrums, 6 circumference scales
7 center lines, 8 main scale scales, 9 class vernier graduations
Embodiment
As shown in Figure 1, class vernier micrometer caliper described in the utility model comprises U-shaped chi frame 1, gage button 2, micrometric screw 3, fixed muffle 4, microdrum 5, gage button 2 is fixed in the inboard of U-shaped chi frame 1 one ends, fixed muffle 4 is fixed in the outside of U-shaped chi frame 1 other end, micrometric screw 3 and fixed muffle 4 bolts, the inner of micrometric screw 3 is relative with gage button 2, and the outer end of micrometric screw 3 is fixed in the microdrum 5, and 5 of microdrums are socketed on the fixed muffle 4; The outer rim of microdrum 5 is carved with circumference scale 6, one master calibration chi is arranged on the fixed muffle 4, this master calibration chi comprise one vertically center line and the main scale scale 8 on this center line 7 next doors, it is characterized in that: also be carved with class vernier graduation 9 on the periphery of fixed muffle 4 vertically, described class vernier graduation 9 is by many equally spaced rectilinear(-al)s that parallel with center line 7.
Shown in Figure 3 as Fig. 2, the last item straight line of described class vernier graduation 9 and the angular distance of center line 7 are 14.256 degree, and the angular distance between other each straight lines is 7.056 degree; The angular distance of the circumference scale 6 every degree on the described microdrum 5 is 7.2 degree (see figure 1)s.
Class vernier micrometer caliper of the present utility model, be by worm drive, convert measured size to the axial displacement of micrometric screw and the circumferential displacement of microdrum, and utilize circumference scale on the microdrum and the class vernier graduation on the fixed muffle that circumferential displacement is measured, thereby realize amplification segmentation to pitch.On the fixed muffle circumference scale of class vernier graduation and microdrum over against, the similar of this structure and vernier caliper: 50 lattice scales are arranged on the microdrum, every lattice institute is 7.2 degree to central angle, 50 lattice scales are also arranged on the fixed muffle, the last item straight line of scale and the angular distance of center line are 14.256 degree, and the angular distance between other each straight lines is 7.056 degree.Why be designed to is in order to guarantee the accurate reading of main scale scale like this, if 14.256 degree of these first lattice, two lattice that are divided into central angle 7.2 degree and central angle 7.056 degree, so first lattice and last lattice simultaneously over against, in order to make the integral part read-around ratio more clear, just two lattice are merged into lattice and do not influenced reading.
Number reading method of the present utility model divides three steps:
1. read the scale on the fixed muffle after winding device is tight earlier, scale division value is 1mm, notices whether half millimeter line exposes.(being made as x)
2. read the scale on the microdrum again, between two lattice, read less lattice.(being made as y)
3. see at last on which lattice of fixed muffle and the microdrum scale over against.(being made as n)
The measurement length that obtains can be expressed as L=x+0.01y+0.0002n (mm)
Claims (2)
1. a kind vernier micrometer caliper, comprise U-shaped chi frame, gage button, micrometric screw, fixed muffle, microdrum, gage button is fixed in the inboard of U-shaped chi frame one end, fixed muffle is fixed in the outside of the U-shaped chi frame other end, micrometric screw and fixed muffle bolt, the inner of micrometric screw is relative with gage button, and the outer end of micrometric screw is fixed in the microdrum, and microdrum then is socketed on the fixed muffle; The outer rim of microdrum is carved with the circumference scale, one master calibration chi is arranged on the fixed muffle, this master calibration chi comprise one vertically center line and the main scale scale on this center line next door, it is characterized in that: also be carved with vernier graduation on the periphery of fixed muffle vertically, described vernier graduation is by many equally spaced rectilinear(-al)s that parallel with center line.
2. class vernier micrometer caliper according to claim 1 is characterized in that: the last item straight line of described vernier graduation and the angular distance of center line are 14.256 degree, and the angular distance between other each straight lines is 7.056 degree; The angular distance of the every degree of circumference scale on the described microdrum is 7.2 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520142423 CN2854495Y (en) | 2005-12-02 | 2005-12-02 | Vernier-like screw-thread micrometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520142423 CN2854495Y (en) | 2005-12-02 | 2005-12-02 | Vernier-like screw-thread micrometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2854495Y true CN2854495Y (en) | 2007-01-03 |
Family
ID=37581131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520142423 Expired - Fee Related CN2854495Y (en) | 2005-12-02 | 2005-12-02 | Vernier-like screw-thread micrometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2854495Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103697781A (en) * | 2014-01-02 | 2014-04-02 | 祁砚明 | Ten-thousandth micrometer |
| CN109186394A (en) * | 2018-07-28 | 2019-01-11 | 宁国市金优机械配件有限公司 | A kind of assembly detection apparatus with remote manipulator |
| CN110763096A (en) * | 2018-07-28 | 2020-02-07 | 宁国市金优机械配件有限公司 | Mechanical equipment detection device |
| CN113390312A (en) * | 2021-06-18 | 2021-09-14 | 遵义师范学院 | Three-standard screw micrometer |
-
2005
- 2005-12-02 CN CN 200520142423 patent/CN2854495Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103697781A (en) * | 2014-01-02 | 2014-04-02 | 祁砚明 | Ten-thousandth micrometer |
| CN109186394A (en) * | 2018-07-28 | 2019-01-11 | 宁国市金优机械配件有限公司 | A kind of assembly detection apparatus with remote manipulator |
| CN110763096A (en) * | 2018-07-28 | 2020-02-07 | 宁国市金优机械配件有限公司 | Mechanical equipment detection device |
| CN113390312A (en) * | 2021-06-18 | 2021-09-14 | 遵义师范学院 | Three-standard screw micrometer |
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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 |