CN102818507A - Angle size accurate measuring method of sine protractor - Google Patents
Angle size accurate measuring method of sine protractor Download PDFInfo
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- CN102818507A CN102818507A CN2011101612730A CN201110161273A CN102818507A CN 102818507 A CN102818507 A CN 102818507A CN 2011101612730 A CN2011101612730 A CN 2011101612730A CN 201110161273 A CN201110161273 A CN 201110161273A CN 102818507 A CN102818507 A CN 102818507A
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Abstract
An indirect angle measuring and control method is applied in mechanical machining such as bench work filing or mould machining and measurement of small sheet metal angles. On a layout platform, a work piece to be measured is placed on a sine protractor, the work piece angle is converted into a plane by utilizing the sine protractor principle and measuring blocks, a cushion iron is absorbed under a magnetic force seat of a lever indicator, the measuring blocks are used for spelling the actual height between the angle plane and the layout platform, and the dial indicator is subjected to zero setting to measure the work piece angle. The angle size accurate measuring method is simple, practical and accurate and reliable in measurement.
Description
Technical field:
The present invention relates to the method for a kind of indirect measurement and control angle, especially pincers worker file join or Mould Machining in the angle of middle or small plate use and can measure when existing measurer can't be measured.
Background technology:
At present; Pincers worker file join or other work post machining such as mould in; The simple angle of medium and small part or dimensional accuracy, the accuracy of form and position of tapering; Usually indirectly measure through length bar and guarantee, but when the linearity etc. of running into dovetail, multi-angle or circular cone does not have situation that measuring basis or existing measurer can't measure, can't guarantee precision.
Summary of the invention:
In order to overcome the deficiency of existing measuring method, the present invention has mentioned the use of uniting of sine gauge, gauge block, dial gauge and face plate, has higher measuring accuracy through demonstration, and can guarantee crudy efficiently.
The technical solution adopted for the present invention to solve the technical problems is: in measuring process, utilize the function of sine gauge that angle is changed into the plane; Utilize the height on lever indicator, gauge block and face plate combined measurement angle plane then; Whether to the distance of platform reach the theoretical value of calculating, can guarantee its precision if being institute's lining face.
Concrete measuring principle:
The part drawing that will process is as shown in Figure 1.Measuring principle figure is as shown in Figure 2, and the basic parameter of sine gauge has the thickness δ of sine gauge; The axial line distance L of two cylinders; The radius R of two cylinders.When taking measurement of an angle α, sine gauge is placed on the face plate, and with gauge block group bed hedgehopping H (H is calculated by sin α=H/L), on one side workpiece α angle is changed into the plane, this moment, the angle of cut of sine gauge and marking plate was α the unbaffled side of sine gauge.A is the height of the one side of leveling up, the α angle of workpiece to sine gauge upper surface front end of line.H is the height of sine gauge upper surface front end of line to face plate.This moment is leveled up on one side to the height of face plate in the α angle that & (& is calculated You &=a+h) is workpiece.Inhale a parallels (the parallels flatness will be got well) to the lever indicator gauge stand of band gauge outfit down; So that dial gauge steadily moves with respect to face plate back and forth; The height that is combined into gauge block again; Percentage indicator and gauge block to zero (height number of gauge block combination is accurate to 2 significant digits, and dial gauge indicator to zero time is depressed about 15 lattice).These work are accomplished and can be promoted the height that dial gauge is measured workpiece this moment, and up to being workpiece processing the theoretical value of calculating to the workpiece height, i.e. the amplitude of indicator swing is within tolerance, and show that angle is qualified this moment, accomplishes measurement.
The invention has the beneficial effects as follows, in, the bad measurement of platelet material angle, under the situation that perhaps existing measurer can't use, can measure easily, and guarantee high measuring accuracy.
Description of drawings:
Fig. 1 is the part example that will measure of the present invention.
The schematic diagram that Fig. 2 the present invention takes measurement of an angle.
Fig. 3 is the schematic diagram of height gauge measured value.
Fig. 4 is the mensuration figure of & value and parameter h.
Embodiment:
Master data is measured the numerical value of the main h of mensuration (h is the height of sine gauge upper surface front end of line to face plate).For the same angle [alpha] of same sine gauge, h highly is constant, thereby the h of angle commonly used is in case confirm, can use repeatedly when running into same angle.During mensuration, use the length bar subsidiary of diameter as d (accuracy class is 1 grade).The top of the length bar of measuring with height gauge during measurement is to height (the height gauge measuring error is big slightly, and the is inaccurate) value of face plate, and promptly the available quantity piece is combined into height, and is to zero, as shown in Figure 3 lever indicator; After intact zero, promote dial gauge and measure the accurate height & of the top of length bar this moment to the reality of face plate, as shown in Figure 4.
The top of length bar is measured by height gauge to the Gao Du &1 of face plate.According to Fig. 4, be combined into height with gauge block, to zero, after intact zero, promote lever indicator dial gauge and measure the accurate height of the top of length bar this moment to the reality of face plate, in measuring process, read the reading of dial gauge indicator at the length bar peak.When measuring, but indicator has several lattice of left avertence or the several lattice of right avertence at the relative zero line of length bar peak, inclined to one side lattice number be exactly and the gap Δ.
Sine gauge upper surface front end of line is to the mensuration of the true altitude h of face plate, and is as shown in Figure 4, can confirm according to following geometric relationship:
X＝(d/2+d/2tanα)cosα＝d/2(sinα+cosα)；
In the formula, α be sine gauge and face plate angle (°), d is the diameter (mm) of length bar, X is the height (mm) of length bar center line to sine gauge upper surface front end of line, ζ is the height (mm) of length bar top to sine gauge upper surface front end of line.
Claims (4)
1. a sine gauge is used for the Angular Dimension accurate measurement method; It is characterized in that: on face plate; Be placed on the survey workpiece on the sine gauge, utilize the sine gauge principle to use gauge block that workpiece angle is changed into the plane, inhale lever indicator magnetic force gauge stand down one parallels, risk this moment angle plane to the true altitude of face plate with gauge block; To zero, measure dial gauge workpiece angle.
2. a kind of sine gauge according to claim 1 is used for the Angular Dimension accurate measurement method, it is characterized in that: to be the angle of the workpiece one side of leveling up arrive the height sum of face plate to the height of sine gauge upper surface front end of line and sine gauge upper surface front end of line to the true altitude that described gauge block is risked angle plane this moment.
3. a kind of sine gauge according to claim 2 is used for the Angular Dimension accurate measurement method, it is characterized in that: offset of sinusoidal rule different angles sine gauge upper surface front end of line is to the elevation measurement of face plate.
4. a kind of sine gauge according to claim 3 is used for the Angular Dimension accurate measurement method, it is characterized in that: obtain indirectly with the length bar subsidiary.Be on face plate; There is sine gauge baffle plate one side pad angled with gauge block; Being placed on sine gauge to length bar has baffle plate one side, measures length bar peak height this moment, risks this height with gauge block with height gauge, inhale a parallels to lever indicator magnetic force gauge stand down again and dial gauge to zero; To highly proofreading and correct, sine gauge upper surface front end of line is to the height of face plate when obtaining different angles indirectly through calculating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101612730A CN102818507A (en) | 2011-06-07 | 2011-06-07 | Angle size accurate measuring method of sine protractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101612730A CN102818507A (en) | 2011-06-07 | 2011-06-07 | Angle size accurate measuring method of sine protractor |
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| Publication Number | Publication Date |
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| CN102818507A true CN102818507A (en) | 2012-12-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011101612730A Pending CN102818507A (en) | 2011-06-07 | 2011-06-07 | Angle size accurate measuring method of sine protractor |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105066848A (en) * | 2015-07-15 | 2015-11-18 | 西安航空动力股份有限公司 | Device and method for measuring pressure surface angle of dovetail-type blade tenon |
| CN105277141A (en) * | 2014-06-24 | 2016-01-27 | 贵州龙飞航空附件有限公司 | Method for measuring large structure piece angle by using chunk type sine table |
| CN106625245A (en) * | 2017-02-22 | 2017-05-10 | 中国航发沈阳发动机研究所 | Measurement method for grinding blade tip |
| CN110440679A (en) * | 2019-09-05 | 2019-11-12 | 中国航空制造技术研究院 | It is a kind of for detecting the device and method of taper bolt taper |
| 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 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2255606Y (en) * | 1996-06-25 | 1997-06-04 | 方力 | Dual-function sine gauge |
| JP2006017702A (en) * | 2004-05-31 | 2006-01-19 | Mitsuboshi Belting Ltd | Angle measuring method and angle inspection method for power transmission belt |
-
2011
- 2011-06-07 CN CN2011101612730A patent/CN102818507A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2255606Y (en) * | 1996-06-25 | 1997-06-04 | 方力 | Dual-function sine gauge |
| JP2006017702A (en) * | 2004-05-31 | 2006-01-19 | Mitsuboshi Belting Ltd | Angle measuring method and angle inspection method for power transmission belt |
Non-Patent Citations (1)
| Title |
|---|
| 柴学宝: "正弦规测量燕尾配合件角度的原理与方法", 《天津职业院校联合学报》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105277141A (en) * | 2014-06-24 | 2016-01-27 | 贵州龙飞航空附件有限公司 | Method for measuring large structure piece angle by using chunk type sine table |
| CN105066848A (en) * | 2015-07-15 | 2015-11-18 | 西安航空动力股份有限公司 | Device and method for measuring pressure surface angle of dovetail-type blade tenon |
| CN105066848B (en) * | 2015-07-15 | 2017-12-01 | 西安航空动力股份有限公司 | Dove-tail form blade tenon pressure face angle measurement unit and method |
| CN106625245A (en) * | 2017-02-22 | 2017-05-10 | 中国航发沈阳发动机研究所 | Measurement method for grinding blade tip |
| CN110440679A (en) * | 2019-09-05 | 2019-11-12 | 中国航空制造技术研究院 | It is a kind of for detecting the device and method of taper bolt taper |
| 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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Application publication date: 20121212 |