CN108444434B - A kind of measurement method for slot deviation angle - Google Patents
A kind of measurement method for slot deviation angle Download PDFInfo
- Publication number
- CN108444434B CN108444434B CN201810608783.XA CN201810608783A CN108444434B CN 108444434 B CN108444434 B CN 108444434B CN 201810608783 A CN201810608783 A CN 201810608783A CN 108444434 B CN108444434 B CN 108444434B
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- Prior art keywords
- slot
- angle
- notch
- measurement method
- point
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/22—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring angles or tapers; for testing the alignment of axes
Abstract
The present invention relates to a kind of measurement methods for slot deviation angle, the gauge check for all kinds of slot angles.It is influenced since the geometric dimension of slot side is shorter, and by slot flatness, when slot surface deflections 0.01mm error, the deviation of the slot of depth 3mm, the angle α and theoretical angle of split and coordinate basis is 0.19 °, and there are the serious enlarge-effects of deviation.This method takes wherein branch and coordinate basis line to detect angle of the notch relative to coordinate basis position, eliminates notch plane error and error enlarge-effect by choosing 2 symmetric coordinates points in slot.Using measurement method of the invention, as slot surface deflections 0.01mm, the slot of depth 3mm, angular deflection be 0.03 °, only original 1/6.
Description
Technical field
The present invention relates to a kind of measurement methods for slot deviation angle, the gauge check for all kinds of slot angles.
Background technique
As shown in Figure 1, gauge check method of the tradition for slot relative to coordinate basis position are as follows: respectively in slot phase
Pair two surface A, B on sweeping take a little, take split again after fitting two virtual planes, measure its angle with coordinate basis
α.It is influenced since the geometric dimension in the face A, B is shorter, and by slot flatness, when slot surface deflections 0.01mm error, depth
The deviation of the angle α of the slot of 3mm, split and coordinate basis and theoretical angle is 0.19 °, and there are deviations seriously to amplify effect
It answers.
Summary of the invention
This method takes wherein branch and coordinate basis line to detect notch by choosing 2 symmetric coordinates points in slot
Relative to the angle of coordinate basis position, notch plane error and error enlarge-effect are eliminated.
A kind of measurement method of slot deviation angle, for measuring the notch that bottom width is L, L is less than or equal to 5mm, should
Method takes arbitrary point A on notch one side, from point A and along the straight line of notch bottom width direction extension, in the other side
Intersection point on face is point B, takes the midpoint of point A and point B and coordinate basis line, detects angle [alpha] of the line in coordinate basis,
The difference of the angle [alpha] and point of theory is slot deviation angle.
The two sides of notch are plane or non-planar.The two sides of notch are arcwall face.
The utility model has the advantages that using measurement method of the invention, as slot surface deflections 0.01mm, the slot of depth 3mm, angle
Degree is deflected to 0.03 °, and only original 1/6.
Detailed description of the invention
Fig. 1 is the detection schematic diagram of prior art slot deviation angle；
Fig. 2 is the error schematic diagram of prior art measurement method；
Fig. 3 is the detection schematic diagram of slot deviation angle of the present invention.
Specific embodiment
Using the measurement method of slot deviation angle of the present invention, the notch that bottom width is L is measured, on notch one side
Point A (X1, Y1, Z1) is taken, width direction of the point A along notch bottom surface extends in the point B (X2, Y2, Z1) on another side, take point A
The difference of midpoint and coordinate basis line with point B, detection angles α, the angle [alpha] and point of theory is deviation angle.
Claims (4)
1. a kind of measurement method of slot deviation angle is L, two sides theoretically symmetrical notch for measuring bottom width,
It is characterized by: this method takes arbitrary point A on notch one side, extend from point A and along notch bottom width direction
Straight line, the intersection point on another side is point B, and the perpendicular bisector of line taking section AB intersects with coordinate basis, and it is vertical flat to detect this
The difference of angle [alpha] of the separated time in coordinate basis, the angle [alpha] and point of theory is slot deviation angle.
2. measurement method according to claim 1, it is characterised in that: width L is less than or equal to 5mm.
3. measurement method according to claim 1, it is characterised in that: the two sides of notch are plane or non-planar.
4. measurement method according to claim 3, it is characterised in that: the two sides of notch are arcwall face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810608783.XA CN108444434B (en) | 2018-06-13 | 2018-06-13 | A kind of measurement method for slot deviation angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810608783.XA CN108444434B (en) | 2018-06-13 | 2018-06-13 | A kind of measurement method for slot deviation angle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108444434A CN108444434A (en) | 2018-08-24 |
| CN108444434B true CN108444434B (en) | 2019-11-08 |
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| CN201810608783.XA Active CN108444434B (en) | 2018-06-13 | 2018-06-13 | A kind of measurement method for slot deviation angle |
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Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH513385A (en) * | 1969-09-30 | 1971-09-30 | Koch Benno | Measuring device for measuring the bevels of workpieces |
| SE502241C2 (en) * | 1991-12-18 | 1995-09-25 | Sandvik Ab | Cutting tool for swarf-removing machining - uses cutter holder of pin type with cutter located on lock screw extending up into cutter hole |
| CN101387487B (en) * | 2008-11-07 | 2010-06-02 | 中国西电电气股份有限公司 | Special-shaped conductor part dimension measurement method |
| CN101907455B (en) * | 2010-01-19 | 2013-10-16 | 奇瑞汽车股份有限公司 | Three-coordinate measuring method for positioning pin not vertical to reference surface |
| CN101738156B (en) * | 2010-01-23 | 2011-09-07 | 桂林福达曲轴有限公司 | Detection method of vehicle engine crankshaft key slot |
| CN102620631A (en) * | 2012-03-30 | 2012-08-01 | 洛阳轴承研究所有限公司 | Detection method for included angle deviation of raceway of cylindrical roller bearing inner ring and reference end surface |
| CN103712583B (en) * | 2012-09-28 | 2016-08-03 | 宁波江丰电子材料股份有限公司 | Well width and the measuring method of size |
| CN104197887B (en) * | 2014-06-19 | 2017-01-25 | 绍兴绍力机电科技有限公司 | Device and method for measuring tilt error of air main shaft |
| CN105115404A (en) * | 2015-08-28 | 2015-12-02 | 航天精工股份有限公司 | Countersunk angle measurement method |
| CN106197225B (en) * | 2016-07-20 | 2019-08-30 | 重庆康明斯发动机有限公司 | Inclined hole detection device and method |
| CN106248023B (en) * | 2016-08-29 | 2018-11-02 | 中航动力股份有限公司 | A kind of detection method of interior cell size face angle degree size |
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2018
- 2018-06-13 CN CN201810608783.XA patent/CN108444434B/en active Active
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| Publication number | Publication date |
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| CN108444434A (en) | 2018-08-24 |
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