CN207894327U - Measure the detection instrument of bent axle Woodruff key slots and keyways axial position size - Google Patents
Measure the detection instrument of bent axle Woodruff key slots and keyways axial position size Download PDFInfo
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- CN207894327U CN207894327U CN201820176561.0U CN201820176561U CN207894327U CN 207894327 U CN207894327 U CN 207894327U CN 201820176561 U CN201820176561 U CN 201820176561U CN 207894327 U CN207894327 U CN 207894327U
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- key slots
- woodruff key
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Abstract
The utility model discloses a kind of detection instruments measuring bent axle Woodruff key slots and keyways axial position size, including gauge block and gauge, gauge block is flat round shape, its thickness is designed according to width of keyway, its round diameter key slot Inner arc diameter design, when gauge block fills in keyway, circular arc and two side contacts of keyway Inner arc of gauge block realize V-arrangement positioning, ensure that gauge block vertical direction center line is overlapped with keyway Inner arc center line；Gauge is the cylinder with go side and not-go-end, its go side and not-go-end diameter are determined that gauge block, gauge can judge whether measured piece Woodruff key slots and keyways center to the size of reference plane meets drawing requirement by being used in conjunction with each other by the outer diameter of Woodruff key slots and keyways, measurement datum and gauge block.Using the technical solution of the utility model, measurement cost is low during measuring bent axle Woodruff key slots and keyways axial position size, and high certainty of measurement, operating method is simple, and detection efficiency is high.
Description
Technical field
The utility model is related to Crankshaft Machining field more particularly to a kind of measuring bent axle Woodruff key slots and keyways axial position size
Detection instrument, including gauge block and feeler gauge.
Background technology
Crankshaft front end belt pulley is installed at axle journal, it usually needs processing Woodruff key slots and keyways.To Woodruff key slots and keyways on detail drawing
Processing request generally has the requirements such as width, depth, symmetry, the axial position size of keyway.
At present for the detection of the width of Woodruff key slots and keyways, depth, symmetry, there is relevant detection method, and for half
The axial position size detection of round key slot, then without convenient detection method.Most common measurement method is exactly：（1）Using three
Coordinate detection method.（2）Using platform and height gauge detection method：Bent axle heavily fortified point is risen and is placed on platform, is found out with height gauge scribing line
Up and down then two positions and axle journal outer circle intersection use size below notch to add to Woodruff key slots and keyways opening to datum-plane position size
Size subtracts channel opening width half above width of rebate half or slot, and Woodruff key slots and keyways center line can be obtained to the position of reference plane
Size.
Above two detection method is time-consuming and laborious and measurement error is larger：（1）Three coordinate measurements, it is troublesome in poeration.Woodruff key
Groove bottom is circular shape, and space is relatively narrow, and gauge head looks for a little time-consuming and operation very inconvenient in Inner arc.（2）Platform and height
Ruler mensuration, error is big, the position ruler of two positions scribing line comparison determining slot circular arc and axle journal outer circle intersecting lens above and below channel opening
Very little, measurement error is bigger.
Utility model content
In view of the deficiencies of the prior art, the technical issues of the utility model solves is how to solve quickly and accurately to survey
Measure bent axle Woodruff key slots and keyways axial position dimensional problem.
In order to solve the above technical problems, the technical solution adopted in the utility model is that a kind of measurement bent axle Woodruff key slots and keyways are axial
The detection instrument of position dimension, including gauge block and gauge, the gauge block are flat round shape, and thickness is set according to width of keyway
Meter, round diameter key slot Inner arc diameter design, when gauge block fills in keyway, circular arc and the keyway Inner arc both sides of gauge block
V-arrangement positioning is realized in contact, ensures that gauge block vertical direction center line is overlapped with keyway Inner arc center line；The gauge is with logical
It holds and the cylinder of not-go-end, go side and not-go-end diameter is determined by the outer diameter of Woodruff key slots and keyways, measurement datum and gauge block, the amount
Block, gauge can judge whether measured piece Woodruff key slots and keyways center to the size of reference plane meets drawing by being used in conjunction with each other
It is required that.
Go side and not-go-end diameter are respectively Woodruff key slots and keyways to measurement datum as a further improvement of the utility model,
The minimum value and maximum value of dimensional tolerance and the outer diameter tolerance of gauge block.
The gauge block round diameter is bigger than keyway Inner arc maximum gauge value as a further improvement of the utility model,
0.1 mm；
It is to realize gauge block and keyway blind-mate as a further improvement of the utility model, gauge block thickness is designed
At multigroup dimensions, every group is classified by 0.005mm, preferably 5 to 7 groups, selects to correspond to according to keyway developed width when measurement
The gauge block of thickness.
It is detected, is included the following steps using the detection instrument of above-mentioned measurement bent axle Woodruff key slots and keyways axial position size：
（1）According to Woodruff key slots and keyways width dimensions, the auxiliary gauge block of one group of correspondence thickness is selected, gauge block is made to fill in key without sideshake
When slot, non-loosening；
（2）Using gauge detection limit block external arc to reference plane apart from size, whether judgement measured size is qualified：
If 1) gauge go side can by by not-go-end cannot pass through, judge measured size qualification；
If 2) gauge go side does not pass through, judge that measured position is undersized, it is unqualified；
If 3) gauge not-go-end can pass through, judge that measured position is oversized, it is unqualified.
Measured during measuring bent axle Woodruff key slots and keyways axial position size using the technical solution of the utility model at
This is low, and high certainty of measurement, operating method is simple, and detection efficiency is high.
Description of the drawings
Fig. 1 is Woodruff key slots and keyways axial position dimension process figure；
Fig. 2 is structural schematic diagram when utility model uses.
Specific implementation mode
Specific embodiment of the present utility model is further described with reference to the accompanying drawings and examples, but is not pair
The restriction of the utility model.
Fig. 1 shows Woodruff key slots and keyways axial position dimension process figure, is expressed with main view partial sectional view and left view.D is
Diameter of a circle where woodruff key fluted shaft, L is axial distance of the woodruff key fluted shaft center of arc's line to reference plane.
Fig. 2 shows structural representation when the utility model is used, a kind of inspection measuring bent axle Woodruff key slots and keyways axial position size
Survey tool, including gauge block 1 and gauge 2, the gauge block 1 are flat round shape, and thickness is designed according to width of keyway, round
Diameter key slot Inner arc diameter design, when gauge block 1 fills in keyway, the circular arc and two side contacts of keyway Inner arc of gauge block 1 are real
Existing V-arrangement positioning, ensures that 1 vertical direction center line of gauge block is overlapped with keyway Inner arc center line；The gauge 2 be with go side and
The cylinder of not-go-end, go side and not-go-end diameter determine by the outer diameter of Woodruff key slots and keyways, measurement datum and gauge block 1, the gauge block
1, gauge 2 can judge whether 3 Woodruff key slots and keyways center of measured piece to the size of reference plane meets figure by being used in conjunction with each other
Paper requirement.
As a further improvement of the utility model, the go side of the gauge 2 and not-go-end diameter be respectively Woodruff key slots and keyways extremely
The minimum value and maximum value of the dimensional tolerance of measurement datum and the outer diameter tolerance of gauge block 1.
1 round diameter of the gauge block is bigger than keyway Inner arc maximum gauge value as a further improvement of the utility model,
0.1 mm；
It is to realize gauge block 1 and keyway blind-mate as a further improvement of the utility model, 1 thickness of gauge block is set
Count into multigroup dimensions, every group is classified by 0.005mm, preferably 5 to 7 groups, according to the selection pair of keyway developed width when measurement
Answer the gauge block 1 of thickness.
It is detected, is included the following steps using the detection instrument of above-mentioned measurement bent axle Woodruff key slots and keyways axial position size：
（1）According to Woodruff key slots and keyways width dimensions, the auxiliary gauge block of one group of correspondence thickness is selected, gauge block is made to fill in key without sideshake
When slot, non-loosening；
（2）Using gauge detection limit block external arc to reference plane apart from size, whether judgement measured size is qualified：
If 1) gauge go side can by by not-go-end cannot pass through, judge measured size qualification；
If 2) gauge go side does not pass through, judge that measured position is undersized, it is unqualified；
If 3) gauge not-go-end can pass through, judge that measured position is oversized, it is unqualified.
Measured during measuring bent axle Woodruff key slots and keyways axial position size using the technical solution of the utility model at
This is low, and high certainty of measurement, operating method is simple, and detection efficiency is high.
Detailed description is made that the embodiment of the utility model above in association with attached drawing, but the utility model is not limited to
Described embodiment.To those skilled in the art, in the situation for not departing from the principles of the present invention and spirit
Under, various change, modification, replacement and modification are carried out to these embodiments and still fallen in the scope of protection of the utility model.
Claims (5)
1. a kind of detection instrument measuring bent axle Woodruff key slots and keyways axial position size, including gauge block (1), the gauge block (1) is flat
Flat round shape, thickness are designed according to width of keyway, round diameter key slot Inner arc diameter design, circular arc and keyway
Two side contacts of Inner arc realize V-arrangement positioning, it is characterised in that：Further include gauge (2), the gauge (2) is with go side and to stop
The cylinder at end, go side and not-go-end diameter are determined by the outer diameter of Woodruff key slots and keyways, measurement datum and the gauge block (1), described
Gauge block (1), gauge (2) can determine that the size of measured piece (3) Woodruff key slots and keyways center to reference plane is by being used in conjunction with each other
It is no to meet drawing requirement.
2. the detection instrument according to claim 1 for measuring bent axle Woodruff key slots and keyways axial position size, it is characterised in that：Institute
State gauge (2) go side and not-go-end diameter be respectively Woodruff key slots and keyways to measurement datum dimensional tolerance and gauge block (1) it is outer
The minimum value and maximum value of diameter dimensional tolerance.
3. the detection instrument according to claim 1 or 2 for measuring bent axle Woodruff key slots and keyways axial position size, feature exist
In：Gauge block (1) round diameter is bigger 0.1 mm than keyway Inner arc maximum gauge value.
4. the detection instrument according to claim 1 or 2 for measuring bent axle Woodruff key slots and keyways axial position size, feature exist
In：Gauge block (1) thickness is designed to no less than 2 packet size specifications, and every group is classified by 0.005mm.
5. the detection instrument according to claim 4 for measuring bent axle Woodruff key slots and keyways axial position size, it is characterised in that：Institute
It is 5 to 7 groups to state gauge block (1) group quantity.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720696594 | 2017-06-15 | ||
| CN2017206965943 | 2017-06-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207894327U true CN207894327U (en) | 2018-09-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820176561.0U Active CN207894327U (en) | 2017-06-15 | 2018-02-01 | Measure the detection instrument of bent axle Woodruff key slots and keyways axial position size |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107014273A (en) * | 2017-06-15 | 2017-08-04 | 桂林福达曲轴有限公司 | Measure the detection instrument and its detection method of bent axle Woodruff key slots and keyways axial location size |
| CN109141200A (en) * | 2018-11-08 | 2019-01-04 | 衡阳市振洋汽车配件有限公司 | Hole symmetry degree gauge |
| CN110487142A (en) * | 2019-07-31 | 2019-11-22 | 重庆望江工业有限公司 | Measure the gauge and method of spherical surface setting position to through hole center distance |
-
2018
- 2018-02-01 CN CN201820176561.0U patent/CN207894327U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107014273A (en) * | 2017-06-15 | 2017-08-04 | 桂林福达曲轴有限公司 | Measure the detection instrument and its detection method of bent axle Woodruff key slots and keyways axial location size |
| CN109141200A (en) * | 2018-11-08 | 2019-01-04 | 衡阳市振洋汽车配件有限公司 | Hole symmetry degree gauge |
| CN110487142A (en) * | 2019-07-31 | 2019-11-22 | 重庆望江工业有限公司 | Measure the gauge and method of spherical surface setting position to through hole center distance |
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