CN101387487B - Special-shaped conductor part dimension measurement method - Google Patents
Special-shaped conductor part dimension measurement method Download PDFInfo
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- CN101387487B CN101387487B CN2008102321923A CN200810232192A CN101387487B CN 101387487 B CN101387487 B CN 101387487B CN 2008102321923 A CN2008102321923 A CN 2008102321923A CN 200810232192 A CN200810232192 A CN 200810232192A CN 101387487 B CN101387487 B CN 101387487B
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Abstract
The invention discloses a method for measuring the dimensions of specially-shaped conductor parts, which comprises the following steps: firstly, preparing a mandrel with the corresponding diameter according to the inclination aperture of the part to be measured, wherein one end of the mandrel is provided with an inclined plane intersecting with the mandrel end face, the intersecting line of the two planes passes through the diameter of the mandrel, and the angle of the inclined plane is in accordance with the inclination angle of the central line of an inclination hole of the part to be measured; secondly, connecting a limiting plate to the mandrel end face intersecting with the inclined plane of the mandrel; thirdly, placing the part to be measured on a detecting platform, inserting the mandrel along the inclination hole of the part, using the limiting plate to cause the end face having the inclined plane of the mandrel to superpose with the end face of the inclination hole of the part to change the inclined plane of the mandrel into a plane, and leading out the intersection point, namely an imaginary point D, of the end face of the inclination hole of the part and the central line thereof; and finally, using a measuring head of a height gauge to approach the intersecting line of the mandrel end face and the inclined plane so as to measure the height dimension H of the part. The method transforms the measurement imaginary point D of the part into a measurable point so as to satisfy the space and angle dimensions of the specially-shaped conductor of an isolating switch which cannot be measured by the prior method.
Description
Technical field
The present invention relates to special-shaped conductor part dimension measurement method, particularly a kind of dimension measurement method of GIS disconnector medium casting conductor.
Background technology
Along with the research and development of high-voltage switch gear product deepen continuously, progressively to UHV (ultra-high voltage) and extra-high voltage, high capacity, big connecting-disconnecting function product, hi-tech parameter product and miniaturization, "smart" products development.Therefore the structure specificity of the vital part of new product also has greatly changed thereupon, brings a new difficult problem for processing and detection.As the disconnector of GIS (Cubicle Gas-Insulated Switchgear) product of miniaturization 126kV electric pressure, dress foundry goods conductor in its about 11 kinds of cast aluminiums, shape is special, and conventional measurer can't be measured its crucial space length size and angle.The dimensional measurement point of this class conductor mostly is the center line of angling hole and the intersection point of end face, and end face has the R3 chamfering, so this measurement point can't extract.4 dimensionings as shown in Figure 1, comprise 3 length dimension h1, h2, h3, an Angular Dimension α analyzes 12 in all similar foundry goods conductor drawings, the general character of such conductor size is that one section measurement point of size is imaginary point D, and this aperture center line and horizontal sextant angle are 45 °.This size end points can't extract with the routine measurement method.The measurement of the locus size that present such conductor is relevant with this imaginary point mainly utilizes three coordinate measuring engine measurement, and this has relatively high expectations to equipment and personnel's, and the inspection cost height is not suitable for and produces check in batches.
Summary of the invention
The purpose of this invention is to provide a kind of method that solves these dimensional measurement difficult problems.By this method, available traditional height gauge just can be finished each space length size and measurement of angle on detection platform.Easy and simple to handle, a workpiece can be finished less than 2 minutes.
For reaching above purpose, the present invention takes following technical scheme to be achieved:
A kind of special-shaped conductor part dimension measurement method comprises the steps:
(1) prepare the mandrel of respective diameters according to the inclination aperture of tested part, an end face of mandrel is provided with the inclined-plane and described end face intersects, and intersects the intersection that forms and crosses axle diameter, and bevel angle is consistent with the angle of inclination of the angling hole center line of tested part;
(2) with mandrel end face that the mandrel inclined-plane intersects on be connected a limiting plate;
(3) tested part is placed on the detection platform, angling hole along part inserts mandrel, and the end face that makes mandrel have the inclined-plane by limiting plate overlaps with part angling hole end face, and the mandrel inclined-plane becomes the plane, with the intersection point of part angling hole end face and its center line, also be that imaginary point D draws;
(4) can measure the height dimension H of part near the intersection place on mandrel end face and inclined-plane with the gauge head of height gauge;
In the said method, in step (4) afterwards, the ragged edge that the gauge head of height gauge is moved to the mandrel inclined-plane is measured the height dimension H ' of part once more along the A place, according to parallelism error L=H '-H, whether the angle of inclination of angling hole center line that can measure part is qualified.Described bevel angle can be 30 °-60 °.
The present invention utilizes the intersection point of mandrel center line and part angling hole end face should be by the principle of axle diameter.Ingenious design inclined-plane on mandrel, form two plane intersection lines, parts measurement imaginary point D is converted into adopts measurement point, just can satisfy the requirement of drawing dimensional measurement, utilize this inclined-plane can measure the Angular Dimension that a class as shown in Figure 1 can't be measured with classic method simultaneously.
Because gravitate behind the mandrel insertion part angling hole, its end face and part measured size end face easily misplace, therefore design limiting plate, can prevent from not only that mandrel from go here and there to move under action of gravity, guarantee the end face of this mandrel and overlapping of part measured size end face again.
Description of drawings
Fig. 1 is a concrete structure figure of heteromorpha conductor part involved in the present invention.
Fig. 2 is the enforcement synoptic diagram of the inventive method.
Fig. 3 is a measurement mandrel structural drawing employed in figure 2.
Fig. 4 is the side view of Fig. 3.
Fig. 2 is in Fig. 4: 1, limiting plate; 2, screw; 3, mandrel; 4, tested part; 5, detection platform; 6, the intersection on mandrel end face and inclined-plane.
Embodiment
The present invention is described in further detail below in conjunction with drawings and Examples.
Because the datum hole of Fig. 1 tested part is Φ 53
0 + 0.5, therefore as shown in Figure 3, Figure 4, the mandrel of at first having made 3 packet size series is to satisfy the cooperation needs of different aperture sizes.
As shown in Figure 2, part 4 is placed on the detection platform 5, Φ 53 endoporus of cleaning workpiece 4 are measured aperture and depth size earlier, select suitable mandrel 3, and tolerance clearance is as far as possible little.Be connected fastening with M8 screw on the mandrel 3 limiting plate 1 with screw 2.To insert mandrel 3 according to direction as shown then.Behind two plane intersection lines 6 with height gauge centering mandrel, the gauge head of height gauge is got final product measurement size H near the intersection place, again the gauge head of mobile height gauge to ragged edge along the A place, if the depth of parallelism of this face and platform less than 0.16, both 45 ° ± 15 ' angle of decidable was qualified.
Inventive point of the present invention: the present invention is on mandrel one end design 45 ° of corresponding to inclined-planes, angle of inclination with the angling hole center line of tested part, intersect with the mandrel end face, two plane intersection lines 6 are crossed axle diameter, in Φ 53 angling holes of part 4 that mandrel 3 is packed into, imaginary point D promptly is converted into and can adopts measurement point, just can carry out size and measurement of angle.As can be seen from Figure 2, part Φ 53 aperture center lines can utilize mandrel 3 to draw, but because mandrel inserts 45 ° of Φ 53 hole rear-inclineds, its end face of gravitate and part measured size end face easily misplace, so design has limiting plate 1, can prevent that not only mandrel from going here and there movingly under action of gravity, guarantee the end face of this mandrel and overlapping of part measured size end face again.
As shown in Figure 2,45 ° of measuring principles are as follows: if measured size α be 45 ° 15 of angle ', then the A ' in the diagram be 15 ', so 45 of mandrel 3 ° of inclined-planes tilt upward 15 ', this chamfered edge is along exceeding L=Φ 53/2* √ 2*tg15 '=0.16 than intersection.According to this principle, during measurement, with the intersection levelling, the gauge head that moves height gauge from intersection is to the ragged edge edge, and difference in height is greater than 0.16 o'clock, and it is overproof to be this angle.Therefore, this design philosophy not only satisfies the measurement of bulk, also can be used to carry out the measurement of angle.The measurement data checking
Each one of measured part GIS first conductor, second conductor, measured size requires identical.Be respectively bulk
(Fig. 1).Same part is measured with different measuring equipments, and measurement result is listed in table 1.As can be seen from Table 1, in the part first measured result frock measure with the three-dimensional coordinates measurement result relatively, the measured value of 2 sizes all differs+0.03, part second and three-dimensional coordinates measurement result comparison, 11
+ 0.04 + 0.14Size differs-0.03,113
+ 0.2 + 0.3Size differs+and 0.01.The measurement result that proves absolutely size that the inventive method is surveyed and three coordinate measuring machine has higher anastomose property.
Table 1 the inventive method and three coordinate measuring machine measured data contrast table
Claims (4)
1. a special-shaped conductor part dimension measurement method is characterized in that, comprises the steps:
(1) prepare the mandrel of respective diameters according to the inclination aperture of tested part, an end face of mandrel is provided with the inclined-plane and described end face intersects, and intersects the intersection that forms and crosses axle diameter, and bevel angle is consistent with the angle of inclination of the angling hole center line of tested part;
(2) with mandrel end face that the mandrel inclined-plane intersects on be connected a limiting plate;
(3) tested part is placed on the detection platform, angling hole along part inserts mandrel, and the end face that makes mandrel have the inclined-plane by limiting plate overlaps with part angling hole end face, and the mandrel inclined-plane becomes the plane, with the intersection point of part angling hole end face and its center line, also be that imaginary point D draws;
(4) can measure the height dimension H of part near the intersection place on mandrel end face and inclined-plane with the gauge head of height gauge.
2. special-shaped conductor part dimension measurement method as claimed in claim 1, it is characterized in that, in step (4) afterwards, the gauge head of height gauge is moved to the ragged edge on mandrel inclined-plane along the A place, measure the height dimension H ' of part once more, according to parallelism error L=H '-H, whether the angle of inclination of angling hole center line that can measure part is qualified.
3. special-shaped conductor part dimension measurement method as claimed in claim 1 or 2 is characterized in that, described bevel angle is 30 °-60 °.
4. special-shaped conductor part dimension measurement method as claimed in claim 3 is characterized in that, described bevel angle is 45 °.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008102321923A CN101387487B (en) | 2008-11-07 | 2008-11-07 | Special-shaped conductor part dimension measurement method |
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| CN2008102321923A CN101387487B (en) | 2008-11-07 | 2008-11-07 | Special-shaped conductor part dimension measurement method |
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| CN101387487A CN101387487A (en) | 2009-03-18 |
| CN101387487B true CN101387487B (en) | 2010-06-02 |
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| 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 |
| CN103630042A (en) * | 2013-12-23 | 2014-03-12 | 重庆望江工业有限公司 | Gauge and method for measuring depth of inclined hole |
| CN105300256A (en) * | 2015-11-25 | 2016-02-03 | 重庆渝记涵诚机械制造有限公司 | Tool for measuring inclination of taper hole |
| CN108444434B (en) * | 2018-06-13 | 2019-11-08 | 江西昌河航空工业有限公司 | A kind of measurement method for slot deviation angle |
| CN109282747B (en) * | 2018-10-11 | 2020-12-22 | 中海福陆重工有限公司 | Pipeline flange screw hole positioning and measuring device |
| CN109500660B (en) * | 2018-11-20 | 2021-01-22 | 中国航发贵州黎阳航空动力有限公司 | Measuring method and device in machining process of annular semi-closed thin-wall part |
| CN110539843A (en) * | 2019-09-27 | 2019-12-06 | 广船国际有限公司 | Method for measuring width of groove of ship groove-shaped wall plate |
| CN112747651B (en) * | 2019-10-29 | 2022-08-19 | 沪东重机有限公司 | Method for measuring angle of spray hole of oil sprayer nozzle of marine diesel engine |
| CN112146553B (en) * | 2020-09-24 | 2022-06-10 | 贵州凯星液力传动机械有限公司 | Design method and use method of inner inclined hole position size measuring device |
| CN114935295A (en) * | 2022-05-16 | 2022-08-23 | 山东蓬翔汽车有限公司 | Semi-shell point fixed end semicircle dislocation measuring scale and measuring method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3641155A1 (en) * | 1986-12-02 | 1988-06-09 | Kemptener Gmbh Maschf | Height-measuring unit |
| CN2854499Y (en) * | 2005-11-10 | 2007-01-03 | 洛阳轴承集团有限公司 | Ball-and-socket depth measuring instrument of low noise ball bearing retainer mould |
| CN101173850A (en) * | 2006-10-31 | 2008-05-07 | 扬动股份有限公司 | Method and tool for measuring centre distance of two holes with vertical axes |
-
2008
- 2008-11-07 CN CN2008102321923A patent/CN101387487B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3641155A1 (en) * | 1986-12-02 | 1988-06-09 | Kemptener Gmbh Maschf | Height-measuring unit |
| CN2854499Y (en) * | 2005-11-10 | 2007-01-03 | 洛阳轴承集团有限公司 | Ball-and-socket depth measuring instrument of low noise ball bearing retainer mould |
| CN101173850A (en) * | 2006-10-31 | 2008-05-07 | 扬动股份有限公司 | Method and tool for measuring centre distance of two holes with vertical axes |
Non-Patent Citations (1)
| Title |
|---|
| 冯宗德.异形零件多尺寸的自动检测机.新技术新工艺.1986,23-25. * |
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