CN2152199Y - Adjustable V-shape sine rule - Google Patents
Adjustable V-shape sine rule Download PDFInfo
- Publication number
- CN2152199Y CN2152199Y CN 93208379 CN93208379U CN2152199Y CN 2152199 Y CN2152199 Y CN 2152199Y CN 93208379 CN93208379 CN 93208379 CN 93208379 U CN93208379 U CN 93208379U CN 2152199 Y CN2152199 Y CN 2152199Y
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- type
- adjustable
- plane
- sine protractor
- nut
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- Expired - Fee Related
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- 230000005540 biological transmission Effects 0.000 claims description 8
- 238000005259 measurement Methods 0.000 abstract description 14
- 238000006073 displacement reaction Methods 0.000 description 4
- 230000001186 cumulative effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The adjustable V-shaped sine rule features that an adjustable V-shaped mechanism consisting of V-shaped seat, drive shaft with screw bolt, nut with inclined surface engaged with screw bolt of drive shaft, movable inclined block matched with nut with inclined surface and V-shaped body connected with movable inclined block is arranged on existing sine rule body. The included angle between the central line and the plane, the included angle between holes on the circumference, the included angle between grooves, the polyhedral pyramid and other workpieces can be measured according to the measurement requirement. Has the advantages of wide measuring range, convenient use, high detecting speed and the like.
Description
A kind of adjustable V type sine protractor belongs to surveying instrument.
Existing worker's chord-foot is made up of worker's chord-foot body, cylindrical gauge, plate washer.Can only measure the workpiece of Outer Taper and angle block gauge one class.And need just can measure by the combination of aids such as square chest and v block for the workpiece that has angle equal indicative between angle between the hole, groove on the position measurer of coordinate and the circumference.Therefore, the measurement range of this sine protractor is narrow; Though can suitably add wide-measuring range by aid,, make troubles to surveying work because the cumulative errors that multiple measurement brings directly influences measuring accuracy.
The purpose of this utility model is to provide a kind of can either keep the measurement function that existing sine protractor is had, and can also avoid the error of multiple measurement, the wide and adjustable V type sine protractor that bring convenience to measuring workpieces of measurement range.
The purpose of this utility model is realized by following technical scheme.A kind of adjustable V type sine protractor is the instrument that carries out precision measurement with the sine function principle.It has sine protractor body (1), cylindrical gauge (2), plate washer (4), its special character is to be fixed with on sine protractor body (1) by V-type seat (9), be placed in the transmission shaft (14) of the band screw rod in the V-type seat (9), the nut (13) on the band inclined-plane that is meshed with the screw rod of transmission shaft (14) with the contacted mobile skewback in the inclined-plane of nut (13) (12), is fixed in the adjustable v-type mechanism that the V-type body (10) on the mobile skewback (12) is formed.
9 holes (19) are set on the last plane of described sine protractor body (1), any two holes of its mesopore (19) can be by two threaded holes (17) of V-type seat (9), be connected with V-type mechanism with screw (18), periphery at sine protractor body (1) is provided with 12 threaded holes (20), any two threaded holes of its mesopore (20) can be connected with V-type mechanism with screw by two stepped holes (22) of V-type seat (9) on the plane at place, hole.
Sine protractor of the present utility model is compared with existing sine protractor, because sine protractor of the present utility model, on existing sine protractor body, set up adjustable v-type mechanism, set up mutually perpendicular rectangular coordinate system, angular displacement is converted into displacement of the lines, solved the angle between center line and the plane easily, the problems of measurement of workpiece such as angle, polyhedral angle cone between angle, groove between the hole on the circumference has avoided existing sine protractor to need aids combinations such as square chest, v block to measure the cumulative errors of being brought.The calibration accuracy of sine protractor of the present utility model meets JJG37-79, and its every technical indicator meets the regulation of GL33-62 national standard.Have advantages such as measurement range is wide, easy to use, detection speed is fast.
The utility model is described in further detail to utilize embodiment shown in the drawings below.
Fig. 1 is the structural representation of sine protractor of the present utility model.
Fig. 2 is the vertical view of accompanying drawing 1.
The structural representation of Fig. 3 sine protractor body (1).
Fig. 4 is an A-A cut-open view among Fig. 3.
Fig. 5 is the synoptic diagram of cone workpiece calibration.
Fig. 6 is the instrumentation plan of angle workpiece between groove on the circumference.
With reference to Fig. 1, Fig. 2, Fig. 3 and Fig. 4 are fixed on sine protractor body (1) on two cylindrical gauges (2) with screw (3).Adjustable v-type mechanism is with the transmission shaft (14) of screw rod by V-type seat (9), the nut (13) on band inclined-plane, and mobile skewback (12), V-type body (10) is formed.The axle (14) front end be provided with locating sleeve (7), the axle (14) the rear end with bearing pin (16) be connected with handwheel (15), transmission shaft (14) is placed the axis hole of V-type seat (9) and with nut (5) with its axial restraint.The inclined-plane of nut (13) contacts with the inclined-plane of mobile skewback (12), and mobile skewback (12) is connected with V-type body (10) with screw (11).During use, rotate handwheel (15), transmission shaft (14) is rotated, the screw rod of transmission shaft (14) is meshed with the nut (13) on band inclined-plane, nut (13) moves vertically, the inclined-plane of nut (13) promotes mobile skewback (12) makes V-type body (10) vertically move along positioning guide rail (21), thereby make the angular displacement between band surface nut (13) and the mobile skewback (12), be converted to the displacement of the lines of V-type body (10), so that measure at the calibration measured workpiece of V-type body (10) internal fixation different-diameter.
The two sides of V-type seat (9) are fixed with follower rail (8) with screw (6), follower rail (8) for auxiliary clamping device fixedly measured workpiece use.Plate washer (4) is two plate washers, is separately fixed on sine protractor body (1) front and the side with screw (20), and its effect is that some cone workpiece can directly place on the sine protractor body (1), by the spacing measurement of plate washer (4) of orthogonal setting.
Hole (23) is to be provided with for the weight that alleviates sine protractor body (1).
There is the stepped hole (19) that communicates mutually on upper and lower two planes of sine protractor body (1), any two holes of its mesopore (19) can be by two threaded holes (17) of V-type seat (9), be connected with adjustable v-type mechanism with screw (18), set up 6 positions that adjustable v-type mechanism can be installed.Periphery at sine protractor body (1) is provided with 12 threaded holes (20), wherein any two threaded holes of threaded hole (20) are on the plane at place, hole, can be connected with V-type mechanism with screw by two stepped holes (22) of V-type seat (9), set up 8 positions that adjustable v-type mechanism can be installed.
With reference to Fig. 5, measured cone workpiece is fixed in the adjustable v-type mechanism, the cone angle that utilizes index gauge (25) and gauge block group (24) to carry out the cone workpiece is measured.
Measuring method and computing formula:
The nominal value of known measured workpiece cone angle alpha, then the size H of gauge block assembly (24) is: H=Lsin α,
If α has deviation, between dull and stereotyped (16) surface of the bus of cone workpiece and measurement pitch angle △ α can appear then, and △ α can calculate with following formula:
△ α=(M
1-M
2)/(L) (radian)
In the formula: M
1-a point index gauge reading (millimeter)
M
2-b point index gauge reading (millimeter)
The distance (millimeter) that the L-a point is ordered to b
In actual measurement, M
1, M
2Represent that with micron L represents with millimeter, then calculates △ α by following formula.
△ α=
* 10
-3(radian)
Or: △ α=(M
1-M
2)/(L) * 10
-3* 57 ° 17 '
＝ (M1-M2)/(L) ×3.44′
Or: △ α=(M
1-M
2)/(L) * 206 "
If M
1M
2The time, △ α be on the occasion of.
If M
1＜M
2The time, △ α is a negative value.
Coning angle actual value: α
1=α ± △ α.
With reference to Fig. 6, with the workpiece of angle between groove on the tested circumference, by contacting with cooperating of auxiliary clamping device and follower rail (8) measured workpiece is fixed on the V-type body (10) of adjustable v-type mechanism, measured workpiece is to have four unequal notches of width on the circumference, therebetween angle be respectively 30 ° ± 5 ', 105 ° ± 5 ', 135 ° ± 5 ', it is 18 ± 0.01 hole that there is a diameter centre, elder generation prepares axle by diameter 18 holes and groove prepares dedicated block, again with (I) number groove as initial zero-bit, dedicated block is put into groove, make dedicated block surface and sine protractor body (1) plane levelling, both with dull and stereotyped (26) the plane levelling of measurement, then gauge block assembly (24) is filled up between a cylindrical gauge (2) and dull and stereotyped (26) plane of measurement, record folder between (I) number groove and (II) number groove with height H and hire 135 ° 45 ° at supplementary angle, according to formula H=Lsin α, L=200mm, sin45 °=0.7071, H=200 * 0.7071=141.42mm.Also flush before and after the dedicated block in (II) number groove at this moment, 45 ° at the supplementary angle that 135 ° of angles between (I) number groove and (II) number groove are described is in tolerance, and so, 135 ° also in margin tolerance.Gauge block group (24) is taken off, and turning of work piece again as initial zero-bit, is measured 30 ° of angles between (IV) number groove and (III) number groove, H=Lsin α, L=200mm, sin30 °=0.5, H=200 * 0.5=100mm with (IV) number groove.Special-purpose gauge block in (III) number groove flushes at this moment, illustrates that 30 ° of angles between (IV) number groove and (III) number groove are in margin tolerance.In like manner can measure the angle between (III) number groove and (II) number groove.If place the dedicated block indicating value in the groove that deviation is arranged, △ α can be according to formula: △ α=(M
1-M
2)/(L) * 206 " and α
1=α ± △ α determines and revises.
Claims (2)
1, a kind of adjustable V type sine protractor, has sine protractor body (1), cylindrical gauge (2), plate washer (4), it is characterized in that on sine protractor body (1), being fixed with, be placed in the transmission shaft (14) of the band screw rod in the V-type seat (9), the nut (13) on the band inclined-plane that is meshed with the screw rod of transmission shaft (14) by V-type seat (9), with the contacted mobile skewback in the inclined-plane of nut (13) (12), be fixed in the adjustable v-type mechanism that the V-type body (10) on the mobile skewback (12) is formed.
2, adjustable V type sine protractor according to claim 1, it is characterized in that on the last plane of sine protractor body (1), being provided with 9 holes (19), any two holes of its mesopore (19) can be by two threaded holes (17) of V-type seat (9), be connected with V-type mechanism with screw (18), periphery at sine protractor body (1) is provided with 12 threaded holes (20), any two threaded holes of its mesopore (20) can be connected with V-type mechanism with screw by two stepped holes (22) of V-type seat (9) on the plane at place, hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93208379 CN2152199Y (en) | 1993-04-09 | 1993-04-09 | Adjustable V-shape sine rule |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93208379 CN2152199Y (en) | 1993-04-09 | 1993-04-09 | Adjustable V-shape sine rule |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2152199Y true CN2152199Y (en) | 1994-01-05 |
Family
ID=33790854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93208379 Expired - Fee Related CN2152199Y (en) | 1993-04-09 | 1993-04-09 | Adjustable V-shape sine rule |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2152199Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1308647C (en) * | 2005-08-29 | 2007-04-04 | 中国航天科技集团公司第十一研究院 | Multipurpose sine gauge for measuring model |
| CN104422419A (en) * | 2013-08-23 | 2015-03-18 | 怀集登云汽配股份有限公司 | Outer diameter V-shaped measurement method and V-shaped gauge of valve retainer outer diameter |
| CN112857302A (en) * | 2019-11-28 | 2021-05-28 | 中国商用飞机有限责任公司 | Angle measuring method and method for drawing angle line |
-
1993
- 1993-04-09 CN CN 93208379 patent/CN2152199Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1308647C (en) * | 2005-08-29 | 2007-04-04 | 中国航天科技集团公司第十一研究院 | Multipurpose sine gauge for measuring model |
| CN104422419A (en) * | 2013-08-23 | 2015-03-18 | 怀集登云汽配股份有限公司 | Outer diameter V-shaped measurement method and V-shaped gauge of valve retainer outer diameter |
| CN104422419B (en) * | 2013-08-23 | 2018-01-12 | 怀集登云汽配股份有限公司 | A kind of V-arrangement measuring method of external diameter and the V-arrangement cubing of Valve Disc external diameter |
| CN112857302A (en) * | 2019-11-28 | 2021-05-28 | 中国商用飞机有限责任公司 | Angle measuring method and method for drawing angle line |
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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 |