CN2578782Y - Conic hole diameter square caliper - Google Patents
Conic hole diameter square caliper Download PDFInfo
- Publication number
- CN2578782Y CN2578782Y CN 02260419 CN02260419U CN2578782Y CN 2578782 Y CN2578782 Y CN 2578782Y CN 02260419 CN02260419 CN 02260419 CN 02260419 U CN02260419 U CN 02260419U CN 2578782 Y CN2578782 Y CN 2578782Y
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- CN
- China
- Prior art keywords
- angle
- vernier caliper
- card base
- taper hole
- clearance
- 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 - Lifetime
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- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
The utility model relates to a device for measuring the caliber of a conic hole for mechanical processing. The utility model relates to a vernier caliper for measuring the caliber of a conic hole. The utility model comprises a pair of vernier caliper feet (2), a vernier caliper body (4) marked with scales, and a vernier (3). The utility model is characterized in that vernier caliper foot type lines are a base line (5) which is perpendicular to a center line of the vernier caliper feet, and an oblique line (6) which forms a separation angle with the center line of the vernier caliper feet; the base line is corresponding to a base surface, and the oblique line is corresponding to an oblique surface; the outer part of the oblique surface on the vernier caliper feet is thin, and the inner part is thick; a conic angle of 1/2 of a work piece is subtracted from the angle of the separation angle, an angle of clearance can be obtained, and the angle of clearance is a positive value. The utility model has the advantages of convenient measurement, accurate and stable indicated value, low cost and wide applicability. A measuring result can be directly displayed or read on the vernier caliper.
Description
Technical field
The utility model relates to the measurement mechanism of taper hole bore in the machining.
Technical background
In machining, the taper hole bore often has tolerance.Because there is a tapering in the aperture, general interior diameter measuring tool can't correctly be located, and port size is difficult to accurately measure.Measurement to the taper hole bore in the prior art is to adopt special-purpose gauge, promptly rely on the logical not-go-end of gauge to control taper hole caliber size tolerance, but this method has than significant disadvantages: the one, and the taper hole angle of requirement workpiece must be processed more accurately; The 2nd, the gauge applicability is narrower, and a cover gauge can only be measured the taper hole of single size.If need accurately to measure the taper hole bore, then need adopt three-coordinates measuring machine, but three-coordinates measuring machine cost height costs an arm and a leg, be not easy to use in general production occasion.
Summary of the invention
The utility model has overcome the defective that measurer can't be located in the prior art, the taper hole caliber size is accurately measured than difficulty, a kind of vernier caliper of measuring the taper hole bore is provided, this vernier caliper measurement is convenient, measurement result can directly show on slide calliper rule or read, indicating value is precise and stable, cost is low, and applicability is wide.
The utility model is achieved in that a kind of vernier caliper of measuring the taper hole bore, comprise a pair of card base, indicate the blade and the vernier of scale, it is characterized in that the card base molded lines is baseline vertical with the card base center line and the oblique line that has angle with the card base center line, the corresponding basal plane of baseline, the oblique line inclined surface, thick in thin outside the inclined-plane on the card base, it is the angle of clearance that the angle angle deducts 1/2nd workpiece cone angles, the angle of clearance be on the occasion of.
In the vernier caliper of above-mentioned measurement taper hole bore, the minimum value of the described angle of clearance is 1 degree.
In the vernier caliper of above-mentioned measurement taper hole bore, there is a groove intersection on described card base basal plane and inclined-plane, and groove is positioned on the inclined-plane extended line.
In the vernier caliper of above-mentioned measurement taper hole bore, the initial value of described blade high scale is the round values greater than zero, and all the other each scales should be initial value mutually and add 10 multiple.
Principle of work of the present utility model is on the basis of common calliper the card base molded lines to be designed again, the card base molded lines is made up of baseline and oblique line, the corresponding basal plane of baseline, the card base basal plane leans against on the measured workpiece taper hole bore end face, the oblique line inclined surface, this inclined-plane is for measuring sword, and is outer thin interior thick, measure between the sword and the measured workpiece conical surface and leave an angle of clearance, the angle of clearance is that the angle of card base oblique line and card base center line deducts 1/2nd workpiece cone angles.Since the angle of clearance be on the occasion of, be angle greater than 1/2nd workpiece cone angles, guaranteed when measuring like this that measurement point just drops on vernier caliper measurement sword and the basal plane intersection point, avoided the mismachining tolerance of coning angle to cause measuring interfering, measure convenient and reliablely, measurement range is wide.The scale of slide calliper rule matches with the molded lines size of card base, and the initial value of scale is the integer greater than zero, and all the other each scales should be initial value mutually and add 10 multiple, and measurement result can directly be read by slide calliper rule vernier place like this, and indicating value is precise and stable.The card base molded lines of this vernier caliper also can be applicable on the vernier caliper with scale or electronic digital display.Be the workpiece calibration of adaptation different cone angle, but the vernier caliper adapted of measurement taper hole bore have the card base molded lines of different angles angle, forms the measurement series instrument.
Description of drawings
Fig. 1 is that the utility model measures the structural representation of the vernier caliper detection cone bore open of taper hole bore, and Fig. 2 be the synoptic diagram of measured workpiece taper hole bore, and Fig. 3 is a card base molded lines structural representation, Fig. 4 be among Fig. 3 C-C to the card base cross-sectional schematic of amplification.
Among the figure: 1 is measured workpiece, and 2 is card base, and 3 is vernier, 4 is blade, and 5 is baseline, and 6 is oblique line, D is a measured workpiece taper hole bore, A, B are check point, and P is that workpiece end face is the measurer basal plane, and K is an initial value, θ is the angle of card base oblique line, α is the workpiece cone angle, and φ is the angle of clearance, wherein: φ=θ-0.5 α.
Embodiment
Referring to Fig. 2, the taper hole bore D of measured workpiece 1 has tolerance, adopts general method to measure and can't locate, and measuring accuracy is low.Referring to Fig. 1, Fig. 3, Fig. 4, the vernier caliper that the utility model is measured the taper hole bore adopts novel card base molded lines to measure, comprise a pair of card base 2, indicate the blade 4 and the vernier 3 of scale, the card base molded lines for the baseline 5 vertical with card base 2 center lines and with the have angle oblique line 6 of θ of card base 2 center lines, baseline 5 corresponding basal planes, oblique line 6 inclined surface are thin interior thick outside the inclined-plane on the card base 2, it is angle of clearance φ that the angle theta angle deducts 1/2nd workpiece cone angle, angle of clearance φ be on the occasion of.For avoiding the influence of workpiece cone angle mismachining tolerance, angle of clearance φ value should be less than the maximum permissible value of angular error in the machining, and by 10 class precisions among the standard JB1-59, the minimum value of angle of clearance φ is 1 degree.Since angle of clearance φ be on the occasion of, measurement point A, B and measurer cutting edge (inclined-plane) coincide with the intersection point of basal plane during vernier caliper measurement, vernier caliper is a locating surface with the end face P of workpiece 1, and the basal plane of card base 2 leans against on the workpiece 1 end face P, guarantees that the gauger can stable operation.Owing to angle of clearance φ is arranged, avoided causing measurement to interfere, so adaptability is wider because of the mismachining tolerance of workpiece cone angle.The angle of clearance can be bigger, the intersection point of measurer cutting edge (inclined-plane) and basal plane still overlaps with measurement point, but the vertical stress component of pulling slide calliper rule vernier 3 ergometries has the tendency that makes slide calliper rule break away from workpiece end face P when measuring, so measuring stability is relatively poor, for measuring semi-cone angle is the following workpiece of 15 degree, and the card base angle can be 16 degree.
Convenient for card base 2 processing grindings, there is a groove intersection on card base basal plane and inclined-plane, and groove is positioned on the inclined-plane extended line.
The initial value K that measures vernier caliper blade 4 high scales of taper hole bore is the round values greater than zero, wants strict guarantee when vernier caliper is made, and all the other each scales should be initial value mutually and add 10 multiple.As the K value is 8, and the scale on the blade 4 is respectively 08,18,28,38,48......, and measurement result can directly correctly show on the slide calliper rule scale.If vernier caliper adopts the form of band scale or electronic digital display, then use more convenient.
The results showed that the measurement range of the vernier caliper of measurement taper hole bore is wide, versatility is higher, and measurement result can directly be read from vernier caliper, and indicating value is precise and stable, and not high, easy to use and reliable to the processing request of workpiece taper hole tapering, cost is low.
Claims (4)
1. vernier caliper of measuring the taper hole bore, comprise a pair of card base (2), indicate the blade (4) and the vernier (3) of scale, it is characterized in that card base (2) molded lines is baseline (5) vertical with card base (2) center line and the oblique line (6) that has angle with card base (2) center line, the corresponding basal plane of baseline (5), oblique line (6) inclined surface, thick in thin outside the inclined-plane on the card base (2), it is the angle of clearance that the angle angle deducts 1/2nd workpiece cone angles, the angle of clearance be on the occasion of.
2. the vernier caliper of measurement taper hole bore according to claim 1, the minimum value that it is characterized in that the angle of clearance are 1 degree.
3. the vernier caliper of measurement taper hole bore according to claim 1 is characterized in that there is a groove intersection on card base (2) basal plane and inclined-plane, and groove is positioned on the inclined-plane extended line.
4. the vernier caliper of measurement taper hole bore according to claim 1, the initial value that it is characterized in that blade (4) high scale is the round values greater than zero, all the other each scales should be initial value mutually and add 10 multiple.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02260419 CN2578782Y (en) | 2002-09-29 | 2002-09-29 | Conic hole diameter square caliper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02260419 CN2578782Y (en) | 2002-09-29 | 2002-09-29 | Conic hole diameter square caliper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2578782Y true CN2578782Y (en) | 2003-10-08 |
Family
ID=33727477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02260419 Expired - Lifetime CN2578782Y (en) | 2002-09-29 | 2002-09-29 | Conic hole diameter square caliper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2578782Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102620618A (en) * | 2012-03-16 | 2012-08-01 | 江苏弘瑞液压机械科技有限公司 | Tool for measuring caliber of backing ring slot of flange joint |
| CN102706230A (en) * | 2012-06-15 | 2012-10-03 | 无锡市锡西化机配件有限公司 | Vernier caliper for measuring T-shaped groove |
| CN103206907A (en) * | 2012-01-11 | 2013-07-17 | 贵州黎阳航空动力有限公司 | Measuring method of size of position of non-right-angle elbow |
| CN104296635A (en) * | 2014-08-08 | 2015-01-21 | 安徽米特吉激光科技有限公司 | Measuring tool |
| CN110487141A (en) * | 2019-07-31 | 2019-11-22 | 重庆望江工业有限公司 | Measure the gauge and method of two symmetrical slope intersection points to lateral distance |
| CN112229290A (en) * | 2020-04-29 | 2021-01-15 | 大连创新零部件制造公司 | Vernier caliper for measuring aperture of taper hole and measuring method |
-
2002
- 2002-09-29 CN CN 02260419 patent/CN2578782Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103206907A (en) * | 2012-01-11 | 2013-07-17 | 贵州黎阳航空动力有限公司 | Measuring method of size of position of non-right-angle elbow |
| CN103206907B (en) * | 2012-01-11 | 2016-06-08 | 贵州黎阳航空动力有限公司 | The measuring method of size of position of non-right-angle elbow |
| CN102620618A (en) * | 2012-03-16 | 2012-08-01 | 江苏弘瑞液压机械科技有限公司 | Tool for measuring caliber of backing ring slot of flange joint |
| CN102706230A (en) * | 2012-06-15 | 2012-10-03 | 无锡市锡西化机配件有限公司 | Vernier caliper for measuring T-shaped groove |
| CN104296635A (en) * | 2014-08-08 | 2015-01-21 | 安徽米特吉激光科技有限公司 | Measuring tool |
| CN110487141A (en) * | 2019-07-31 | 2019-11-22 | 重庆望江工业有限公司 | Measure the gauge and method of two symmetrical slope intersection points to lateral distance |
| CN112229290A (en) * | 2020-04-29 | 2021-01-15 | 大连创新零部件制造公司 | Vernier caliper for measuring aperture of taper hole and measuring method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI ELECTRIC POWER STATION EQUIPMENT CO. Free format text: FORMER OWNER: SHANGHAI TURBINE CO., LTD. Effective date: 20080509 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20080509 Address after: No. 188, Chun Chun Road, Shanghai, Minhang District: 201100 Patentee after: Shanghai Electric Station Equipment Co., Ltd. Address before: No. 333, Jiangchuan Road, Shanghai, Minhang District: 200240 Patentee before: Shanghai Steam Turbine Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20120929 Granted publication date: 20031008 |