CN204255249U - A kind of turning internal taper hole measures measurer - Google Patents
A kind of turning internal taper hole measures measurer Download PDFInfo
- Publication number
- CN204255249U CN204255249U CN201420816680.XU CN201420816680U CN204255249U CN 204255249 U CN204255249 U CN 204255249U CN 201420816680 U CN201420816680 U CN 201420816680U CN 204255249 U CN204255249 U CN 204255249U
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- China
- Prior art keywords
- taper hole
- internal taper
- gauge block
- measurer
- center
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- Expired - Fee Related
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- 238000010923 batch production Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000005259 measurement Methods 0.000 description 15
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000003811 finger Anatomy 0.000 description 1
- 210000005224 forefinger Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
A kind of turning internal taper hole measures measurer, a kind of turning internal taper hole measures measurer, gauge block upper surface center and gauge block lower surface center respectively have a center pit, two center pits each side have a via hole, there is conical surface at the two ends, left and right of gauge block, and described conical surface has identical cone angle with measured internal taper hole.The utility model can measure the size of internal taper hole diameter quickly and accurately, and structure is simple, and low cost of manufacture is suitable for batch production.
Description
Technical field
The utility model relates to the measurer of precision measurement, is specifically related to the precision measurement measurer of internal taper hole.
Background technology
Need to confirm the size of turning and the surplus of grinding before carrying out turning and grinding to internal taper hole, so the diameter of internal taper hole before needing accurately to measure turning and grinding.The diameter of current internal taper hole mainly adopts micrometer inside caliper to measure, but because the measurement contact of micrometer inside caliper is less, be difficult to the diametrical position of locating internal taper hole, so when adopting micrometer inside caliper to carry out internal taper hole measurement, error is difficult to more greatly confirm in the scope of 0.05mm.What the detection of internal taper hole adopted is that feeler gauge detects, but due to the competition rules not cone angle identical with internal taper hole and its size is fixing, therefore feeler gauge cannot confirm for the inside diameter measurement in early stage, and most situation operator is that how many rear feeler gauges that just adopt estimating stock removal detect.This method estimated by repeatedly attempting just making the diameter of internal taper hole reach standard-required, will the working time of at substantial usually, and if the value estimated large can make turning and grinding too much and form substandard product.Alternative method makes improved inner diameter measurement scale, set special ring gauge to compare, improved special scale there will be the defects such as scale is heavier, adjust size is very numerous and diverse, measurement and positioning operating difficulties, is not suitable as the measurement of the diameter before internal taper hole processing.Therefore how quick, before accurately measuring turning and grinding, the size of internal taper hole diameter is the technical matters that those skilled in the art need solution badly.
The patent having similarity with the utility model is found no by domestic retrieval.
Utility model content
The technical problems to be solved in the utility model is:
1. how quick, measure the size of internal taper hole diameter easily;
2. how accurately to measure the size of internal taper hole diameter.
Pin is with the problems referred to above, the technical scheme that the utility model proposes is: a kind of turning internal taper hole measures measurer, gauge block upper surface center and gauge block lower surface center respectively have a center pit, two center pits each side have a via hole, there is conical surface at the two ends, left and right of gauge block, and described conical surface has identical cone angle with measured internal taper hole.
Further, the thickness of gauge block is more than or equal to 12mm, and gauge block upper surface is parallel with gauge block lower surface.
Further, gauge block upper surface is identical with the width of gauge block lower surface, and the length of gauge block upper surface is greater than the length of gauge block lower surface.
Further, center pit is laterally zygomorphic round taper hole, and described center pit is less than the width of gauge block upper surface or gauge block lower surface.
Further, center pit each side have a via hole, two via holes are all through gauge block and be all round rectangle.
Further, there is conical surface at the two ends, left and right of gauge block, and the xsect of described conical surface is arc-shaped, and conical surface has identical cone angle with measured internal taper hole.
The utility model has the advantages that:
1. fast, the size of internal taper hole diameter can be measured easily;
2. accurately can measure the size of internal taper hole diameter;
3. structure is simple, low cost of manufacture, is suitable for batch production.
Accompanying drawing explanation
Fig. 1 is front view of the present utility model;
Fig. 2 is vertical view of the present utility model;
Fig. 3 is; Principle schematic when the utility model uses;
In figure: 1 internal taper hole measurer, 2 gauge blocks, 21 gauge block upper surfaces, 22 gauge block lower surfaces, 3 conical surfaces, 4 via holes, 5 center pits, 6 internal taper holes.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the description of one step is done to the utility model:
Embodiment one
As depicted in figs. 1 and 2, gauge block upper surface 21 center has a center pit 5, and another center pit 5 is positioned at gauge block lower surface 22 place, and gauge block upper surface 21 is parallel with gauge block lower surface 22.Two center pit 5 shapes are identical with size and be all less than the width of gauge block upper surface 21 or gauge block lower surface 22.Internal taper hole measurer 1 is conveniently produced in the effect of two center pits 5, carries out measurement have nothing to do with internal taper hole measurer 1.Each side have a via hole 4 at center pit 5, when measuring the internal taper hole 6 that will carry out the part of turning and grinding, forefinger and middle finger, respectively through a via hole 4, are measured in the internal taper hole 6 internal taper hole measurer 1 being put in part.Therefore the effect of via hole 4 is convenient for measuring.
As shown in Figure 2, the thickness of gauge block 2 slightly larger than or equal 12mm, there is conical surface 3 at the two ends, left and right of gauge block 2, conical surface 3 is arc-shaped, because conical surface 3 has the arc length being greater than 12mm, and conical surface 3 has identical cone angle with measured internal taper hole 6, so internal taper hole measurer 1 puts into internal taper hole 6 when measuring, internal taper hole measurer 1 well can coincide with internal taper hole 6, not easily occur that micrometer inside caliper is less owing to measuring contact, be difficult to the problem of the diametrical position of locating internal taper hole 6, therefore its measuring error is less.Adopt internal taper hole measurer 1 pair of internal taper hole 6 to carry out measuring error and can be less than 0.02mm, and with micrometer inside caliper, measurement time error is carried out to internal taper hole 6 and be greater than 0.05mm.
As shown in Figure 3, when measuring internal taper hole 6, after internal taper hole measurer 1 is put into internal taper hole 6, gauge block upper surface 21 can be higher or lower than the certain height in the edge of internal taper hole 6, and the alphabetical b of described height represents by we.And by gauge block upper surface 21(and large one end) length represent with φ 2, the diameter of the internal taper hole 6 that will measure represents with φ 1, is represented by taper ratio c, then can with formula: φ 1=φ 2+b × c represents the association between them.Because internal taper hole measurer 1 has identical cone angle with internal taper hole 6, so be also fixing for fixing its taper ratio c of cone angle, and the value of the length φ 2 of gauge block upper surface 21 is also fixing.That is when cone angle is constant, according to formula φ 1=φ 2+b × c: as long as the difference in height b measuring the edge of gauge block upper surface 21 and internal taper hole 6 just can calculate the diameter phi 1 of internal taper hole 6.It is worth mentioning that: during measurement, when gauge block upper surface 21 exceeds the edge of internal taper hole 6, the value of the b in above-mentioned formula is negative value; When the edge of gauge block upper surface 21 lower than internal taper hole 6, the value of the b in above-mentioned formula be on the occasion of.
In actual measurement, because the taper ratio c carrying out the part of the band internal taper hole 6 produced in batches is identical, unlike the diameter phi 1 of internal taper hole 6 and the gauge block upper surface 21 difference in height b with the edge of internal taper hole 6, so a numerical value b and numerical value φ 1 table of comparisons one to one can be listed according to formula φ 1=φ 2+b × c, after measuring the difference in height b at the edge of gauge block upper surface 21 and internal taper hole 6, by checking that the table of comparisons just can know the value of the diameter phi 1 of internal taper hole 6, thus recognize the surplus will carrying out turning and grinding, the accurate processing of internal taper hole 6 and the quality of product are provided safeguard.
In addition, because in measurement, internal taper hole measurer 1 is all very smooth with the surface of internal taper hole 6, the degree of coincideing is very high again, there is stronger bounding force each other, therefore in actual measurement the thickness of gauge block 2 too conference internal taper hole measurer 1 is increased with the surface of contact of internal taper hole 6, thus after making measurement complete, internal taper hole measurer 1 is difficult to extract in internal taper hole 6.The thickness of gauge block 2 is too little, can make measure error increase, therefore adopt in the utility model the thickness of gauge block 2 slightly larger than or equal 12mm.
Obviously, under the prerequisite not departing from principle described in the utility model, the some improvement made or modification all should be considered as protection domain of the present utility model.
Claims (6)
1. a turning internal taper hole measures measurer, it is characterized in that, gauge block upper surface center and gauge block lower surface center respectively have a center pit, two center pits each side have a via hole, there is conical surface at the two ends, left and right of gauge block, and described conical surface has identical cone angle with measured internal taper hole.
2. a kind of turning internal taper hole according to claim 1 measures measurer, and it is characterized in that, the thickness of gauge block is more than or equal to 12mm, and gauge block upper surface is parallel with gauge block lower surface.
3. a kind of turning internal taper hole according to claim 1 measures measurer, and it is characterized in that, gauge block upper surface is identical with the width of gauge block lower surface, and the length of gauge block upper surface is greater than the length of gauge block lower surface.
4. a kind of turning internal taper hole according to claim 1 measures measurer, and it is characterized in that, center pit is laterally zygomorphic round taper hole, and described center pit is less than the width of gauge block upper surface or gauge block lower surface.
5. a kind of turning internal taper hole according to claim 1 measures measurer, it is characterized in that, center pit each side have a via hole, two via holes are all through gauge block and be all round rectangle.
6. a kind of turning internal taper hole according to claim 1 measures measurer, and it is characterized in that, there is conical surface at the two ends, left and right of gauge block, and the xsect of described conical surface is arc-shaped, and conical surface has identical cone angle with measured internal taper hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420816680.XU CN204255249U (en) | 2014-12-22 | 2014-12-22 | A kind of turning internal taper hole measures measurer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420816680.XU CN204255249U (en) | 2014-12-22 | 2014-12-22 | A kind of turning internal taper hole measures measurer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204255249U true CN204255249U (en) | 2015-04-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420816680.XU Expired - Fee Related CN204255249U (en) | 2014-12-22 | 2014-12-22 | A kind of turning internal taper hole measures measurer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204255249U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104482839A (en) * | 2014-12-22 | 2015-04-01 | 南车株洲电机有限公司 | Method and tool for measuring turned inner cone hole |
-
2014
- 2014-12-22 CN CN201420816680.XU patent/CN204255249U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104482839A (en) * | 2014-12-22 | 2015-04-01 | 南车株洲电机有限公司 | Method and tool for measuring turned inner cone hole |
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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 |
Granted publication date: 20150408 |