CN109307465B - Gauge for measuring outer circle size of spline with odd teeth - Google Patents
Gauge for measuring outer circle size of spline with odd teeth Download PDFInfo
- Publication number
- CN109307465B CN109307465B CN201811241878.9A CN201811241878A CN109307465B CN 109307465 B CN109307465 B CN 109307465B CN 201811241878 A CN201811241878 A CN 201811241878A CN 109307465 B CN109307465 B CN 109307465B
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- positioning block
- gland
- spline
- block
- odd
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- 238000007906 compression Methods 0.000 claims abstract description 33
- 230000006835 compression Effects 0.000 claims abstract description 32
- 210000004907 gland Anatomy 0.000 claims abstract description 24
- 238000005259 measurement Methods 0.000 claims abstract description 11
- 238000001514 detection method Methods 0.000 description 5
- 238000000691 measurement method Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/08—Measuring arrangements characterised by the use of mechanical techniques for measuring diameters
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention relates to the technical field of spline excircle size measurement gauge, in particular to an odd-tooth spline excircle size measurement gauge; the technical problem that the positioning of the V-shaped block is inconvenient when the outer circle size of the odd-tooth spline is measured by adopting the existing V-shaped block is solved. The technical scheme of the invention is as follows: the measuring gauge comprises a V-shaped block, a dial indicator, a positioning block, a compression spring and a gland; the positioning block is a stepped shaft, the large end of the positioning block is provided with a hole which is matched with the outer diameter of the measuring head of the dial indicator, and the small end of the positioning block is provided with a notch which can be matched with the spline teeth of the measured piece; the center of the small end part of the V-shaped block is provided with a counter bore, the small end of the positioning block penetrates through a small hole at the lower part of the counter bore and then is used for positioning the spline tooth at the highest position of the measured piece, and the large end of the positioning block is arranged in a large hole at the upper part of the counter bore; the small end part of the V-shaped block is provided with a gland, and the center of the gland is provided with a through hole; a compression spring is arranged between the gland and the large end face of the positioning block.
Description
Technical Field
The invention relates to a spline excircle size measuring tool, in particular to an odd-tooth spline excircle size measuring gauge.
Background
Because the number of teeth is the external spline of odd number, its outside circle size can't adopt outside micrometer to measure, at present mainly adopts three-point location measurement method and "V" type tangent measurement method to the measurement of odd number tooth spline outside circle size. The three-point positioning measurement method has lower measurement precision and cannot meet the detection of the spline shaft with higher processing precision requirement. For the detection of the outer circle of the spline with the odd teeth, which has smaller outer circle size and high processing precision requirement, the existing V-shaped tangential method has the problem that the positioning of the V-shaped block is inconvenient due to the measurement, namely, the left and right planes of the V-shaped block are not easy to be adjusted to be exactly tangential with the outer circle part of the tooth top of the spline shaft, or even if the left and right planes of the V-shaped block are not tangential with the outer circle part of the tooth top of the spline teeth, a measurer can not easily find the problem, so that the measurement result deviates from the true value seriously.
Disclosure of Invention
The invention provides a measuring gauge for the outer circle size of an odd-tooth spline, which aims to solve the technical problem that the measurement result is inaccurate due to the fact that a V-shaped block is inconvenient to position when the V-shaped block is used for measuring the outer circle size of the odd-tooth spline.
The technical scheme of the invention is as follows:
the utility model provides an odd tooth spline excircle size measurement examines utensil, includes "V" type piece and amesdial, its special character lies in: the device also comprises a positioning block, a compression spring and a gland.
The positioning block is a stepped shaft, the large end of the positioning block is provided with a measuring head through hole matched with the outer diameter of a measuring head of the dial indicator, and the small end of the positioning block is provided with a notch matched with spline teeth of a measured piece.
The center of the small end of the V-shaped block is provided with a counter bore, the small end of the positioning block penetrates through a small hole at the lower part of the counter bore and then is used for positioning the spline tooth at the highest position of the measured piece, and the large end of the positioning block is arranged in a large hole at the upper part of the counter bore; the small end of the V-shaped block is provided with a gland, the center of the gland is provided with a through hole, and a measuring head of the dial indicator (4) sequentially passes through the gland (5), the V-shaped block (1) and the positioning block (2) and then contacts with the spline teeth at the highest position of the measured piece (6); a compression spring is arranged between the gland and the large end face of the positioning block.
Further, for the sake of a simpler structure, the number of the compression springs is one, and the compression springs are coaxially arranged with the positioning block 2.
Further, in order to be stressed more uniformly, the number of the compression springs is two, and the two compression springs are symmetrically arranged relative to the axis of the positioning block.
Further, for installation convenience, the gland is connected to the V-shaped block through a screw.
Further, in order to limit the compression spring better, a groove is formed in the end face of the large end of the positioning block, and the diameter of the groove is matched with the outer diameter of the compression spring.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the positioning block, the compression spring and the gland are additionally arranged on the existing V-shaped block, so that the V-shaped block can be rapidly positioned when the outer circle size of the odd-tooth spline is measured, and the measurement efficiency is high.
2. The two compression springs are symmetrically arranged relative to the axis of the positioning block, and the compression springs are stressed more uniformly.
3. The gland in the invention is connected to the V-shaped block through the screw, so that the installation is more convenient.
4. According to the invention, the end face of the large end of the positioning block is provided with the groove, the diameter of the groove is matched with the outer diameter of the compression spring, and the compression spring can be well limited.
Drawings
FIG. 1 is a schematic diagram of the structure of one embodiment of the present invention;
FIG. 2 is a schematic view of the positioning block in the present embodiment;
the reference numerals in the drawings are: 1- "V" type piece, 101-counter bore upper portion macropore, 102-counter bore lower part aperture, 2-locating piece, 201-gauge head via hole, 202-opening, 3-compression spring, 4-dial indicator, 5-gland, 6-measured piece.
Detailed Description
The invention is further described below with reference to the accompanying drawings and specific examples.
Referring to fig. 1, the gauge comprises a V-shaped block 1, a positioning block 2, a compression spring 3, a dial indicator 4 and a gland 5. The positioning block 2 is a stepped shaft, a hole 201 which is matched with the outer diameter of the measuring head of the dial indicator 4 is arranged at the large end of the positioning block 2, and a notch 202 which can be used for embedding spline teeth of the measured piece 6 is arranged at the small end of the positioning block.
The center of the small end of the V-shaped block 1 is provided with a counter bore, the small end of the positioning block 2 passes through a small hole 102 at the lower part of the counter bore and then is used for positioning the spline teeth at the highest position of the measured piece 6, and the large end of the positioning block is arranged in a large hole 101 at the upper part of the counter bore. The small end part of the V-shaped block 1 is connected with a gland 5 through a screw, a through hole is arranged in the center of the gland 5, and a measuring head of the dial gauge 4 sequentially passes through the gland 5, and is contacted with spline teeth at the highest position of a measured piece 6 after passing through the V-shaped block 1 and the positioning block 2; a compression spring 3 is arranged between the gland 5 and the large end face of the positioning block 2.
The number of the compression springs 3 can be one, and the compression springs are coaxially arranged with the positioning block 2; the number of the compression springs 3 can be two, and the two compression springs 3 are symmetrically arranged relative to the axis of the positioning block 2; the number of the compression springs 3 may be an even number of two or more, and each compression spring 3 is annularly arranged around the axis of the positioning block 2. In the embodiment, two compression springs 3 are symmetrically arranged relative to the axis of the positioning block 2, and for more accurate measurement, the sum of the pressures of the working states of the two compression springs 3 is smaller than the sum 10N of the weights of the V-shaped block 1, the dial indicator 4 and the gland 5.
The detection process of the detection tool is as follows:
1) The checking fixture is arranged on a cylindrical calibration piece, and the checking fixture is calibrated;
2) The detection tool is arranged at the part of the detected piece 6 to be measured; the positioning block 2 is contacted with the left tooth surface and the right tooth surface of any tooth of the measured piece 6 to realize positioning, then other parts except the positioning block 2 move towards the center of the measured piece 6 under the action of the integral gravity of the measuring tool, the two side surfaces of the V-shaped block 1 are tangent to the outer circle part of the tooth top of the measured piece 6, and at the moment, the measuring head of the dial indicator 4 is contacted with the outer circle of the tooth top of the measured piece 6;
3) Reading the relative movement of the dial indicator 4;
4) Calculating to obtain the outer circle diameter size of the measured piece 6 through a formula 1;
D＝D1+2*ΔX*sin(α/2)……(1)
wherein, D: the outer circle size of the measured piece 6;
d1: the diameter of the calibration piece;
Δx: relative movement of dial indicator;
alpha: the included angle between the two side surfaces of the V-shaped block 1;
the foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the present invention and the accompanying drawings, or direct or indirect application in other related technical fields, are included in the scope of the present invention.
Claims (5)
1. The utility model provides an odd tooth spline excircle size measurement examines utensil, includes "V" type piece (1) and amesdial (4), its characterized in that: the device also comprises a positioning block (2), a compression spring (3) and a gland (5);
the positioning block (2) is a stepped shaft, a measuring head through hole (201) which is matched with the outer diameter of a measuring head of the dial indicator (4) is formed in the large end of the positioning block (2), and a notch (202) which can be embedded into spline teeth of a measured piece (6) is formed in the small end of the positioning block;
the center of the small end of the V-shaped block (1) is provided with a counter bore, the small end of the positioning block (2) passes through a small hole (102) at the lower part of the counter bore and then is used for positioning the spline teeth at the highest position of the measured piece (6), and the large end of the positioning block is arranged in a large hole (101) at the upper part of the counter bore; the small end of the V-shaped block (1) is provided with a gland (5), the center of the gland (5) is provided with a through hole, and a measuring head of the dial indicator (4) sequentially passes through the gland (5), the V-shaped block (1) and the positioning block (2) and then contacts with the spline teeth at the highest position of the measured piece (6); a compression spring (3) is arranged between the gland (5) and the large end face of the positioning block (2).
2. The gauge for measuring the outer circle size of an odd-tooth spline according to claim 1, wherein: the number of the compression springs (3) is one, and the compression springs are coaxially arranged with the positioning block (2).
3. The gauge for measuring the outer circle size of an odd-tooth spline according to claim 1, wherein: the number of the compression springs (3) is two, and the two compression springs (3) are symmetrically arranged relative to the axis of the positioning block (2).
4. The gauge for measuring the outer circle size of an odd-tooth spline according to claim 2 or 3, wherein: the gland (5) is connected to the V-shaped block (1) through a screw.
5. The gauge for measuring the outer circle size of an odd-tooth spline according to claim 4, wherein: the end face of the large end of the positioning block (2) is provided with a groove, and the diameter of the groove is matched with the outer diameter of the compression spring (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811241878.9A CN109307465B (en) | 2018-10-24 | 2018-10-24 | Gauge for measuring outer circle size of spline with odd teeth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811241878.9A CN109307465B (en) | 2018-10-24 | 2018-10-24 | Gauge for measuring outer circle size of spline with odd teeth |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109307465A CN109307465A (en) | 2019-02-05 |
| CN109307465B true CN109307465B (en) | 2024-04-12 |
Family
ID=65225579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811241878.9A Active CN109307465B (en) | 2018-10-24 | 2018-10-24 | Gauge for measuring outer circle size of spline with odd teeth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109307465B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111059985B (en) * | 2019-11-21 | 2022-05-13 | 陕西法士特齿轮有限责任公司 | Disc gear spline addendum circle diameter measuring gauge and method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0666550A (en) * | 1992-08-18 | 1994-03-08 | Chuo Denshi Kk | Method and device for measuring outer diameter of cylinder |
| CN202485603U (en) * | 2012-02-17 | 2012-10-10 | 宝山钢铁股份有限公司 | Roller diameter measuring device |
| CN202599301U (en) * | 2012-05-08 | 2012-12-12 | 武汉东环车身系统有限公司 | Detection device for circle radius of tooth crest of tooth plate |
| CN104848767A (en) * | 2015-06-08 | 2015-08-19 | 广西玉柴机器股份有限公司 | Tool for measuring diameter of external circle of crankshaft |
| CN105066835A (en) * | 2015-07-16 | 2015-11-18 | 西安航空动力股份有限公司 | Detection method for tip diameter of odd-number-tooth gear |
| CN204963738U (en) * | 2015-10-15 | 2016-01-13 | 广西玉柴机器股份有限公司 | Utensil is examined to crank throw |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208952851U (en) * | 2018-10-24 | 2019-06-07 | 西安法士特汽车传动有限公司 | A kind of odd number gear spline excircle dimension measurement cubing |
-
2018
- 2018-10-24 CN CN201811241878.9A patent/CN109307465B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0666550A (en) * | 1992-08-18 | 1994-03-08 | Chuo Denshi Kk | Method and device for measuring outer diameter of cylinder |
| CN202485603U (en) * | 2012-02-17 | 2012-10-10 | 宝山钢铁股份有限公司 | Roller diameter measuring device |
| CN202599301U (en) * | 2012-05-08 | 2012-12-12 | 武汉东环车身系统有限公司 | Detection device for circle radius of tooth crest of tooth plate |
| CN104848767A (en) * | 2015-06-08 | 2015-08-19 | 广西玉柴机器股份有限公司 | Tool for measuring diameter of external circle of crankshaft |
| CN105066835A (en) * | 2015-07-16 | 2015-11-18 | 西安航空动力股份有限公司 | Detection method for tip diameter of odd-number-tooth gear |
| CN204963738U (en) * | 2015-10-15 | 2016-01-13 | 广西玉柴机器股份有限公司 | Utensil is examined to crank throw |
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| Publication number | Publication date |
|---|---|
| CN109307465A (en) | 2019-02-05 |
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