CN203323671U - Three point-type arc surface radius fast measuring ruler - Google Patents
Three point-type arc surface radius fast measuring ruler Download PDFInfo
- Publication number
- CN203323671U CN203323671U CN2013203997272U CN201320399727U CN203323671U CN 203323671 U CN203323671 U CN 203323671U CN 2013203997272 U CN2013203997272 U CN 2013203997272U CN 201320399727 U CN201320399727 U CN 201320399727U CN 203323671 U CN203323671 U CN 203323671U
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- guide groove
- arc surface
- vernier
- main scale
- radius
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Abstract
A three point-type arc surface radius fast measuring ruler based on a principle that non-collinear three points uniquely determine a circle is provided. The three point-type arc surface radius fast measuring ruler is referred to as an arc radius measuring ruler. The arc radius measuring ruler can not only measure the inner (outer) arc surface radius of a complete circle, but also can conveniently measure the inner (outer) arc surface radius of an incomplete circle. The arc radius measuring ruler is mainly composed of a main ruler, sagging guide groove rockers, a vernier and the like, wherein the main ruler is connected with two sagging guide groove rockers through a rotation pair of which the rotation plane is parallel to the upper surface of the main ruler; the main ruler is provided with the vernier which can slide along the main ruler; the center of the lower bottom surface of the vernier is fixedly connected with a vernier fixing positioning column; the vernier fixing positioning column and guide grooves on perpendicular bisectors of the two sagging guide groove rockers form a moving pair of which the movement direction is consistent with the direction of the guide grooves; and when the vernier is pushed by a hand, under the effect of the guide grooves, the sagging guide groove rockers can rotate along and with respect to the main ruler, and therefore, when three cylindrical contacts are made to be in tangency with a measured inner (outer) arc surface, the radius of the arc surface can be measured.
Description
Technical field
The utility model relates to a kind of measurer of measuring the arc surface radius, especially can measure the inner arc surface radius of non-full circle or full circle and the Quick Measuring gage of exterior arc surface radius.
Background technology
In the field of industrial productions such as machine-building, Mould Machining, often can encounter the measurement problem of inner arc surface radius and the exterior arc surface radius of the non-full circle of workpiece or full circle, at present, we have existing measuring method: (1) is measured with radius gauge (radius caliper), this method is subject to the restriction of radius gauge quantity, most of circular arc all can not find the radius gauge corresponding with it, can't realize electrodeless measurement; (2) use common kind of calliper, by measuring diameter, obtain radius, if the central angle of measured circular arc is less than 180 °, can not directly obtain the radius of circular arc; (3) use the optics apparatus measures, need clamping and centering before measurement, after measurement, also will solve radius by mathematical computations, high to gauger's technical requirement, operating process is loaded down with trivial details, and instrument value is high, investment is large.
Summary of the invention
For realizing the purpose of (outward) arc surface radius in any right cylinder of Quick Measurement, the utility model has designed a kind of based on three of conllinear unique bikini arc surface radius Quick Measuring gages (abbreviation circular arc radius measurement ruler) of determining the principle of circles not in plane, this circular arc radius measurement ruler can not only be measured interior (outward) arc surface radius of full circle, and can be convenient for measuring interior (outward) arc surface radius of non-full circle.
The utility model solves the technical scheme that its technical matters adopts: according to axiom---in plane not three of conllinear determine unique circles, by in spatial vertical in the measured circle cylinder (outside) find arbitrarily on the plane of arc surface bus three with tested in (outside) the crossing point of arc surface, determine the intersection point of the perpendicular bisector of any two points line, be the center of circle of (outward) arc surface place circular arc on this plane in the measured circle cylinder, in the point of this center of circle to three, the distance of arbitrfary point is the radius of (outward) arc surface place circular arc on this plane in the measured circle cylinder, be the radius of (outward) arc surface in the measured circle cylinder.
The circular arc radius measurement ruler of design mainly by main scale, in hang down guide groove rocking bar, cylinder contact and vernier etc. form, main scale is connected by revolute pair with vertical guide groove rocking bar in two, rotational plane is parallel with the main scale upper surface.The vernier that can slide along main scale is arranged on main scale, in vernier bottom surface center, be fixedly connected with a vernier reference column, the guide groove on vernier reference column and two rocking bar perpendicular bisectors forms moving sets, and moving direction is consistent with the guide groove direction.When with the hand propelled vernier, under the effect of guide groove, in the guide groove rocking bar that hangs down just can relative to main scale, rotate along main scale.Hang down in two end of guide groove rocking bar and the top of main scale is fixedly connected with respectively an identical cylinder contact, and is fixedly connected with a hand-held contact at the opposite side that main scale is fixedly connected with the cylinder contact and is used for hand-held dip stick.
Be carved with respectively inner arc radius Measurement scales and exterior arc surface radius measurement scale in main scale upper surface both sides, (outward) arc surface radius measurement value in being used for reading, main scale be take millimeter as unit, on vernier, divides 10 lattices are arranged, and estimates during reading and reads hundredths.
The beneficial effects of the utility model are, can fast, accurately measure the radius of (outward) arc surface in hollow cylinder, easy and simple to handle, simple in structure.
The accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is measuring principle figure of the present utility model.
Fig. 2 is the structural drawing of bikini arc surface radius Quick Measuring gage.
Fig. 3 is the embodiment that bikini arc surface radius Quick Measuring gage is measured inner arc surface.
Fig. 4 is the embodiment that bikini arc surface radius Quick Measuring gage is measured exterior arc surface.
1. main scales in figure, guide groove rocking bar, 3. cylinder contact, 4. hand-held contact, 5. guide groove, 6. vernier, 7. vernier reference column hang down in 2..
Embodiment
In Fig. 1, by in spatial vertical, on the plane of measured circle cylinder inner arc surface bus, find arbitrarily three with the crossing point of tested inner arc surface, determine the intersection point of the perpendicular bisector of any two points line, be the center of circle of measured circle cylinder inner arc surface place circular arc on this plane, in the point of this center of circle to three, the distance of arbitrfary point is the radius of measured circle cylinder inner arc surface place circular arc on this plane, is the radius of measured circle cylinder inner arc surface.
In Fig. 2, main scale (1) is connected by revolute pair with the guide groove rocking bar (2) that hangs down in two, and rotational plane is parallel with main scale (1) upper surface.The vernier (6) that can slide along main scale (1) is arranged on main scale (1), be fixedly connected with a vernier reference column (7) in vernier (6) bottom surface center, vernier reference column (7) forms moving sets with the guide groove (5) on two rocking bar perpendicular bisectors, and moving direction is consistent with the guide groove direction.When with the hand propelled vernier when (6), under the effect of guide groove (5), in the guide groove rocking bar (2) that hangs down just can relative to main scale (1), rotate along main scale (1).Hang down in two end of guide groove rocking bar (2) and the top of main scale (1) is fixedly connected with respectively an identical cylinder contact (3), and is fixedly connected with a hand-held contact (4) at the opposite side that main scale (1) is fixedly connected with cylinder contact (3) and is used for hand-held dip stick.
In the embodiment shown in fig. 3; get measured circle cylinder inner arc surface; by hand-held contact (4), the cylinder contact (3) on main scale (1) top is close on measured circle cylinder inner arc surface; after adjusting vernier (6) and making another two cylinder contacts (3) and measured circle cylinder inner arc surface tangent, the size that just can the inner arc surface radius scale from main scale (1) directly reads measured circle cylinder inner arc surface radius.
In the embodiment shown in fig. 4; get measured circle cylinder exterior arc surface; by hand-held contact (4), the cylinder contact (3) on main scale (1) top is close on measured circle cylinder exterior arc surface; after adjusting vernier (6) and making another two cylinder contacts (3) and measured circle cylinder exterior arc surface tangent, the size that just can the exterior arc surface radius scale from main scale (1) directly reads measured circle cylinder exterior arc surface radius.
Claims (4)
1. a bikini arc surface radius Quick Measuring gage, mainly by main scale, in the guide groove rocking bar that hangs down, cylinder contact and vernier four parts form, it is characterized in that: main scale is connected by revolute pair with the guide groove rocking bar that hangs down in two, the vernier that can slide along main scale is arranged on main scale, be fixedly connected with a vernier reference column in vernier bottom surface center, guide groove on vernier reference column and two rocking bar perpendicular bisectors forms moving sets, in two, the end of vertical guide groove rocking bar and the top of main scale are fixedly connected with respectively an identical cylinder contact, and be fixedly connected with a hand-held contact at the opposite side that main scale is fixedly connected with the cylinder contact and be used for hand-held dip stick.
2. bikini arc surface radius Quick Measuring gage according to claim 1 is characterized in that: when with the hand propelled vernier, under the effect of guide groove, in the guide groove rocking bar that hangs down just can relative to main scale, rotate along main scale.
3. bikini arc surface radius Quick Measuring gage according to claim 1 is characterized in that: main scale is connected by revolute pair with the guide groove rocking bar that hangs down in two, and rotational plane is parallel with the main scale upper surface.
4. bikini arc surface radius Quick Measuring gage according to claim 1 is characterized in that: the guide groove on the guide groove rocking bar perpendicular bisector that hangs down in vernier reference column and two forms moving sets, and moving direction is consistent with the guide groove direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203997272U CN203323671U (en) | 2013-07-07 | 2013-07-07 | Three point-type arc surface radius fast measuring ruler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203997272U CN203323671U (en) | 2013-07-07 | 2013-07-07 | Three point-type arc surface radius fast measuring ruler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203323671U true CN203323671U (en) | 2013-12-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203997272U Expired - Fee Related CN203323671U (en) | 2013-07-07 | 2013-07-07 | Three point-type arc surface radius fast measuring ruler |
Country Status (1)
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| CN (1) | CN203323671U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104677324A (en) * | 2015-03-10 | 2015-06-03 | 南车株洲电力机车有限公司 | Detection device of rail distance |
| CN104677237A (en) * | 2015-01-30 | 2015-06-03 | 上海众力汽车部件有限公司 | Checking tool for checking outer diameter of parts |
| CN105180832A (en) * | 2015-10-26 | 2015-12-23 | 国网福建省电力有限公司泉州供电公司 | Cable curvature measuring method |
| CN107179040A (en) * | 2017-07-26 | 2017-09-19 | 中车戚墅堰机车车辆工艺研究所有限公司 | Diameter measuring device and measuring apparatus |
| CN109141187A (en) * | 2018-07-20 | 2019-01-04 | 中国商用飞机有限责任公司 | Small-bore measuring tool |
| CN111307021A (en) * | 2020-03-03 | 2020-06-19 | 浙江中技建设工程检测有限公司 | Diameter measuring device for outer wall of cambered surface structure and using method thereof |
| CN113551581A (en) * | 2021-07-16 | 2021-10-26 | 钱源 | Direct-reading type electric power large-caliber pipeline inner diameter measuring device |
| CN113739742A (en) * | 2021-08-25 | 2021-12-03 | 成都飞机工业（集团）有限责任公司 | Method and device for rapidly detecting large radius of airplane part |
| CN113942084A (en) * | 2021-11-10 | 2022-01-18 | 中国建筑第七工程局有限公司 | Arc-shaped template blanking tool and method |
-
2013
- 2013-07-07 CN CN2013203997272U patent/CN203323671U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104677237A (en) * | 2015-01-30 | 2015-06-03 | 上海众力汽车部件有限公司 | Checking tool for checking outer diameter of parts |
| CN104677324A (en) * | 2015-03-10 | 2015-06-03 | 南车株洲电力机车有限公司 | Detection device of rail distance |
| CN104677324B (en) * | 2015-03-10 | 2017-06-30 | 南车株洲电力机车有限公司 | Gauge detection means |
| CN105180832A (en) * | 2015-10-26 | 2015-12-23 | 国网福建省电力有限公司泉州供电公司 | Cable curvature measuring method |
| CN107179040A (en) * | 2017-07-26 | 2017-09-19 | 中车戚墅堰机车车辆工艺研究所有限公司 | Diameter measuring device and measuring apparatus |
| CN109141187A (en) * | 2018-07-20 | 2019-01-04 | 中国商用飞机有限责任公司 | Small-bore measuring tool |
| CN111307021A (en) * | 2020-03-03 | 2020-06-19 | 浙江中技建设工程检测有限公司 | Diameter measuring device for outer wall of cambered surface structure and using method thereof |
| CN113551581A (en) * | 2021-07-16 | 2021-10-26 | 钱源 | Direct-reading type electric power large-caliber pipeline inner diameter measuring device |
| CN113739742A (en) * | 2021-08-25 | 2021-12-03 | 成都飞机工业（集团）有限责任公司 | Method and device for rapidly detecting large radius of airplane part |
| CN113942084A (en) * | 2021-11-10 | 2022-01-18 | 中国建筑第七工程局有限公司 | Arc-shaped template blanking tool and method |
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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: 20131204 Termination date: 20140707 |
|
| EXPY | Termination of patent right or utility model |