CN104215156B - Keyway reference block and the double keyway symmetry detectors of endoporus list - Google Patents
Keyway reference block and the double keyway symmetry detectors of endoporus list Download PDFInfo
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- CN104215156B CN104215156B CN201410502722.7A CN201410502722A CN104215156B CN 104215156 B CN104215156 B CN 104215156B CN 201410502722 A CN201410502722 A CN 201410502722A CN 104215156 B CN104215156 B CN 104215156B
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- keyway
- reference block
- endoporus
- table bar
- locating piece
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Abstract
The invention discloses a kind of keyway reference block and the symmetry detector that uses cooperatively for detecting endoporus single key slot, belong to a kind of special test measuring device, the problem of for solving complicated existing symmetry detector, detection poor reliability.Wherein keyway reference block has the male key for coordinating tested part keyway size, it can detect whether the processing of endoporus single key slot is reasonable using the male key, after the annexes such as the keyway reference block and gauge stand, table bar assembly, dial gauge are combined, the symmetry error of endoporus single key slot symmetry, perpendicularity and endoporus double bond groove can be accurately detected.The keyway reference block is lightweight, on process equipment or production scene can be detected at any time, saves production cost, labor intensity is alleviated, detection process is enormously simplify, production efficiency is significantly improved, judged result is intuitive and reliable simultaneously, especially adapts to the detection of part volume.
Description
Technical field
The present invention relates to a kind of measuring equipment, it particularly relates to match measurement endoporus list double keyway symmetry, perpendicularity
Keyway reference block, and the double keyway symmetries of detection endoporus list detector.
Background technology
The symmetry measurement of shaft key groove is widely used in motor, lathe, automobile making and all axle classes zero connected with keyway
Part, the quality of keyway symmetry directly affects the effect of Automatic manual transmission.If the width dimensions of keyway are processed very correct, but key
The symmetry of groove is not reaching to the requirement of form and position tolerance, at this time can equally occur when keyed axle and the hole with keyway are assembled
Situation about not entering is assembled, therefore, very high are required to double keyway symmetries in machine industry.
In the prior art, measurement keyway symmetry, perpendicularity（Linearity）When, surveyed typically on process equipment or three coordinates
Amount, this inconvenient operation, labor intensity for reviewer person are big, and detection device cost is high, low production efficiency.
Notification number is CN202452943 patent document（The applying date is on March 8th, 2012）Disclose a kind of endoporus double bond
Groove symmetry degree gauge, the symmetry for detecting inner circle double bond groove, specifically, first being surveyed on the basis of two symmetrical working faces of keyway
Then amount rotates 180 ° to endoporus maximum length value, then measures after its length is compared and judge symmetry error.But the work
Tool can not determine whether endoporus single key slot symmetry is qualified, such as can not detect axial line of the single keyway relative to tested part
Symmetry error（That is the axis of keyway and part radial-axial is misaligned）, and error of perpendicularity value（I.e. keyway working face with
It is axially not parallel）, therefore in the case of endoporus single key slot is underproof, the double keyway symmetries of direct measurement endoporus are incorrect
's.
The content of the invention
In view of this, the present invention is intended to provide one kind is simple in construction, easy to operate, can detect endoporus singly-bound groove processing essence
The keyway reference block of degree.
To realize above-mentioned technical purpose, the technical solution adopted by the present invention is as follows：
A kind of keyway reference block, including " mouth " font keyway locating piece, the keyway locating piece left and right sides difference
Extend downwardly out Central Symmetry distribution positioning side plate, the oriented side plate shape into matching tested part keyway size male key,
And the distance of the positioning side plate leading flank and trailing flank is no more than the distance between the preceding inwall of keyway locating piece and rear inwall, institute
State locking balls of the lower surface respectively symmetrically provided with least two protrusions before and after keyway locating piece, the positioning side plate leading flank with
The distance of trailing flank designs the lower limit of width no more than tested part keyway, and the distance between two pieces of positioning side plate does not surpass
Cross the lower limit of tested part keyway design length.
It can detect whether inner hole key slot is qualified as follows using the keyway reference block of above-mentioned technical proposal, first will
Two oriented side plate shapes into male key insert the keyway of tested part, it is ensured that axially position steel ball on keyway locating piece with it is tested
Inner bore of part hole wall is tangent, because the length and width of male key are no more than the lower limit of tested part keyway designed size, therefore works as
In the case of inner hole key slot machining status is preferable, male key is easily inserted in keyway, if inserting not enter or can not be fully inserted into
Then illustrate that inner hole key slot groove width, groove depth, keyway working face or keyway root chamfer dimesion have underproof situation；If convex
Key front and rear sides and the working face of tested part keyway two are not parallel, then illustrate that keyway off center, or keyway are not hung down with end face
Directly.
Further limit, the keyway locating piece left and right sides offers some symmetrical lightening holes.Lightening hole
Setting can mitigate the weight of keyway reference block, operate lighter.
Further limit, be provided with the middle part of two pieces of positioning side plate between lower connecting portion, the keyway locating piece left and right sides
Provided with upper connecting portion, connecting portion is in the symmetrical line position of keyway locating piece upper surface on this.Because keyway reference block center is
Hollow, as use time increases, keyway locating piece, which is easily deformed, influences its standard size, upper connection and the setting of lower connecting portion
It may insure that the keyway positioning block structure of " mouth " font is unlikely to deform, so as to improve the intensity of keyway reference block.
Present invention also offers a kind of double keyway symmetry detectors of endoporus list, it includes keyway reference block in addition to table
Seat, table bar assembly and dial gauge, the gauge stand are fixed on keyway reference block, and described table bar assembly one end connects gauge stand, another
Dial gauge is fixedly mounted in end.
It can detect whether endoporus single key slot and endoporus double bond groove are qualified using the detector of above-mentioned technical proposal.Work as endoporus
It is difficult the key for intuitively detecting tested part separately through keyway reference block when single key slot and the smaller deviation of keyway reference block
Whether groove processing is qualified, can then overcome this detection compared with little deviation to ask after gauge stand, table bar assembly and dial gauge is added
Topic.When detecting endoporus single key slot, first keyway reference block is inserted in inner hole key slot respectively against left side and right side, passed through
The gap value that centimeter check goes out can determine whether whether the groove width of endoporus single key slot, groove depth are qualified；By keyway reference block along shaft parts
Single key slot perpendicularity can be detected to sliding；180 ° of difference of keyway reference block rotation are measured into endoporus single key slot or so end twice
Face, can detect endoporus single key slot symmetry error value；When detecting endoporus double bond groove, surveyed in inner hole key slot along part axial
Measure the right working face that two symmetrical keys are measured after the left working face of two symmetrical keys, 180 ° of rotation, it can be determined that endoporus is double
The symmetry error of keyway.
Further limit, the gauge stand has flat base level, being capable of magnetic suction between the reference plane and keyway locating piece
It is attached.Above-mentioned restriction make it that the fixed form between gauge stand and keyway reference block is more flexible, carries more convenient.
Further limit, the table bar assembly includes the first table bar, the second table bar and the 3rd table bar, the 3rd table bar leads to
Cross rotating shaft to be hinged between the first table bar and the second table bar, the first table bar can be rotated relative to gauge stand, described
Two table bars fix dial gauge by table card.The table bar assembly of above-mentioned restriction the regulation of dial gauge and measured more to facilitate.
The present invention compared with prior art, has the advantages that：
1st, it is placed on by keyway reference block in inner hole key slot and may determine that whether single key slot processing dimension is qualified, can also be led to
Cross range estimation and judge the obvious symmetry error of single key slot and the error of perpendicularity.
2nd, by dial gauge and table bar assembly, the symmetry of endoporus single key slot and endoporus double bond groove can be accurately detected
Error.
Simple in construction lightweight, the keyway reference block weight only 0.91kg of the present invention, can detect diameter of bore Φ 630mm grooves
Wide 110mm keyway, and detect that easy to operate, detection efficiency is high, reviewer and operator can be intuitively any at the scene
Environment is detected, is especially suitable for the use of bulk article particularly heavy parts.
Brief description of the drawings
Fig. 1 is keyway reference block structural representation；
Fig. 2 is the front view of keyway reference block；
Fig. 3 is keyway reference block upward view；
Fig. 4 is the top view of keyway reference block；
Fig. 5 is that keyway reference block detects endoporus single key slot schematic diagram；
Fig. 6 is single key slot symmetry detector structural representation；
Fig. 7 and Fig. 8 is detection endoporus single key slot symmetry schematic diagram；
Fig. 9 and Figure 10 is the double keyway symmetry schematic diagrames of detection endoporus.
Embodiment
In order that the present invention may be better understood in those skilled in the art, with reference to the accompanying drawings and examples to this hair
Bright technical scheme is further illustrated.
As shown in Fig. 1 ~ 4, a kind of keyway reference block, including " mouth " font keyway locating piece 1, the keyway positioning
Extend the positioning side plate 2 of Central Symmetry distribution separately down in the left and right sides of block 1（Central Symmetry distribution refers to two positioning side plates 2
Size is identical, not only symmetrical distribution, and each positioning side plate 2 is also located at the middle part of the left and right sides of keyway locating piece 1）,
The lower male key of two pieces of positioning formation matching tested part keyway sizes of side plate 2, wherein the length matching keyway of positioning side plate 2 is wide
Degree, positions the matched keyway groove depth of side plate 2（Highly it is less than groove depth）, the distance of the leading flank 21 of positioning side plate 2 and trailing flank 22
No more than the distance between the preceding inwall 11 of keyway locating piece 1 and rear inwall 12, this restriction is in order to remaining on keyway locating piece 1
Lower surface 13 on the axially position steel ball 3 of protrusion is set, axially position steel ball 3 respectively has two here, is symmetrically arranged at
Before and after keyway locating piece 1 on lower surface 13.In order that in the case that the width and Design of length that obtain tested part keyway are qualified, should
Keyway reference block can be inserted in keyway, it is necessary to assure the distance of the leading flank 21 of positioning side plate 2 and trailing flank 22 is no more than quilt
The lower limit that part keyway designs width is surveyed, two pieces position the distance between side plate 2 and are no more than tested part keyway design length
Lower limit, accordingly even when the length and width of keyway be keyway design the minimum limit of size, two pieces positioning side plate 2 formation male key
Can insertion match this keyway, facilitate its relevant parameter to keyway to be estimated.
To mitigate keyway reference block overall weight, the keyway reference block left and right sides offers 5 pairs of symmetrical lightening holes
15, such keyway reference block weight mitigates significantly, and use is more light, if necessary can also be before and after keyway locating piece 1
Both sides open up strip hole.Lightening hole 15 number can be according to the size of whole keyway reference block and overall to keyway reference block
The requirement of weight suitably increases and decreases, and this increase and decrease should be ensured that keyway reference block can adapt to the requirement of its detection intensity and rigidity.
In view of inside keyway reference block to be hollow, after keyway reference block use time is long, keyway locating piece 1 and
Positioning side plate 2 is easily deformed the standard size of influence keyway reference block, such as after standard size diminishes, originally underproof key
Groove after testing after may can turn into qualified products, to overcome drawbacks described above, it is ensured that keyway reference block detect when accuracy,
Two pieces of middle parts of positioning side plate 2 are provided with lower connecting portion 23, are provided with and keyway reference block upper surface between the left and right sides of keyway locating piece 1
The 14 upper connecting portions 16 flushed, connecting portion 16 is located at the symmetrical line position of keyway reference block upper surface 14, such keyway base on this
Quasi- block is after commonly using stress, and its structure is unlikely to deform, and accordingly improves the service life of keyway reference block.
As shown in figure 5, the concrete operations using above-mentioned keyway reference block are：The male key that first two positioning side plates 2 are formed
In the keyway for inserting tested part, it is ensured that the axially position steel ball 3 and tested part endoporus hole wall 8 on keyway locating piece 1 are tangent,
Due to male key length and width be no more than tested part keyway designed size lower limit, therefore when inner hole key slot machining status compared with
In the case of good, male key is easily inserted in keyway, illustrate if inserting and not entering or can not be fully inserted into inner hole key slot groove width,
There is underproof situation in groove depth, keyway working face or keyway root chamfer dimesion；If male key front and rear sides and tested zero
The working face of part keyway two is not parallel, then illustrates that keyway has off-centring, or keyway and end face out of plumb.
For inner hole key slot, even if keyway has that off-centring or axial line are not parallel, keyway reference block
It still is possible to be put into groove, in the case where deviation is little, it is difficult to judge that keyway whether there is only to be with keyway reference block
The heart is offset or the not parallel situation of axial line, and whether symmetry error and the error of perpendicularity are in allowed band.
In view of this, this application provides one kind be used to accurately detecting endoporus single key slot symmetry and the error of perpendicularity and
The detector of double bond groove symmetry error.
The detector structure is as shown in fig. 6, it adds gauge stand 4, table bar assembly 5, hundred on the basis of keyway reference block
Divide table 6 and Biao Ka 7, wherein the gauge stand 4 is fixed on keyway locating piece 1 by flat base level 41, gauge stand 4 and keyway benchmark
Magnetic absorption is preferably able between block, is so conducive to removing and installing between keyway reference block and gauge stand 4.
Table bar assembly 5 includes the first table bar 51, the second table bar 52 and the 3rd table bar 53, and the two ends of the 3rd table bar 53 pass through rotating shaft
511st, 521 it is hinged between the first table bar 51 and the second table bar 52, the first table bar 51 is rotated relative to gauge stand 4, described second
Table bar 52 fixes dial gauge 6 by table card 7.
Fig. 7, Fig. 8 illustrate how accurately to detect whether tested part endoporus single key slot is qualified using the detector, specifically
Step is：Left side is abutted in the inner hole key slot that keyway reference block is inserted to tested part first, dial indicator measuring head 61 is in endoporus
The parallel sliding vertically of inwall 8, reading is shown according to dial gauge, finds out endoporus minimum point, record now percentage meter reading T, so
Keyway reference block is abutted into inner hole key slot right side afterwards, percentage meter reading T ' is equally measured, is gone out by centimeter check twice
Gap value judges whether the groove width of endoporus single key slot is qualified；Because the positioning height of side plate 2 is less than keyway groove depth, therefore bottom land and key
It is gap design between groove reference block, clearance gauge is filled in gap can detect whether keyway groove depth is qualified.
The keyway reference block being put into keyway is slid axially along tested part, dial indicator measuring head 61 is on the edge of endoporus inwall 8
Axial movement, can be obtained according to the reading difference that dial indicator measuring head 61 before and after keyway reference block sliding distance and movement is detected
Go out the perpendicularity of single key slot.
With reference to Fig. 7 and Fig. 8, in the case where groove width, groove depth and perpendicularity are all qualified, next to endoporus single key slot
Symmetry is detected, is specially：Keyway reference block is abutted into part keyway left side, the measurement endoporus of dial indicator measuring head 61 first
Inwall 8 simultaneously reads reading, 180 ° then will be rotated before and after detector, wherein keyway reference block abuts part keyway right side, hundred
Divide the measurement endoporus of table gauge head 61 inwall 8 and read reading, can be calculated by the half of the error amount of front and rear survey measurements twice
Go out the symmetry error of endoporus single key slot.
Fig. 9 and Figure 10 illustrate how to detect the symmetry of tested part endoporus double bond groove using the detector, specific to walk
Suddenly it is：Keyway reference block measures the left work of two symmetrical inner hole key slots as shown in Figure 9 on the basis of the left working face of inner hole key slot first
Make face, record percentage meter reading（It is 0 that preferably dial gauge indicating value, which is dialled,）, keyway reference block is then rotated 180 °, by Figure 10 institutes
Show the right working face that two symmetrical inner hole key slots are measured on the basis of the right working face of inner hole key slot, record before percentage meter reading, dial gauge
The half of measurement difference is endoporus double bond groove symmetry error twice afterwards.
The double keyway symmetry detectors of keyway reference block and endoporus list provided above the present invention have carried out detailed Jie
Continue.The explanation of specific embodiment is only intended to the method and its core concept for helping to understand the present invention.It should be pointed out that for this skill
For the those of ordinary skill in art field, under the premise without departing from the principles of the invention, some change can also be carried out to the present invention
Enter and modify, these are improved and modification is also fallen into the protection domain of the claims in the present invention.
Claims (4)
1. a kind of keyway reference block, it is characterised in that including " mouth " font keyway locating piece, the keyway locating piece or so
The positioning side plate of Central Symmetry distribution is extended in both sides separately down, and the oriented side plate shape is into matching tested part keyway size
Male key, and the distance for positioning side plate leading flank and trailing flank is no more than between the preceding inwall of keyway locating piece and rear inwall
Before and after distance, the keyway locating piece on front side of locking ball of the lower surface respectively symmetrically provided with four protrusions, the positioning side plate
The distance of face and trailing flank designs the distance between the lower limit of width, two pieces of positioning side plate no more than tested part keyway
No more than the lower limit of tested part keyway design length；
The keyway locating piece left and right sides is provided with the middle part of some symmetrical lightening holes, two pieces of positioning side plate and is provided with down
Upper connecting portion is provided between connecting portion, the keyway locating piece left and right sides, connecting portion is in keyway locating piece upper surface on this
Symmetrical line position.
2. the double keyway symmetry detectors of a kind of endoporus list, it is characterised in that including the keyway reference block described in claim 1,
Also include gauge stand, table bar assembly and dial gauge, the gauge stand is fixed on keyway reference block, table bar assembly one end connection table
Seat, the other end installs dial gauge.
3. the double keyway symmetry detectors of endoporus list according to claim 2, it is characterised in that the gauge stand has flat
Reference plane, being capable of magnetic absorption between the reference plane and keyway locating piece.
4. the double keyway symmetry detectors of endoporus list according to Claims 2 or 3, it is characterised in that the table bar assembly
Including the first table bar, the second table bar and the 3rd table bar, the 3rd table bar is hinged on the first table bar and second by rotating shaft
Between table bar, the first table bar can be rotated relative to gauge stand, and the second table bar fixes dial gauge by table card.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410502722.7A CN104215156B (en) | 2014-09-28 | 2014-09-28 | Keyway reference block and the double keyway symmetry detectors of endoporus list |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410502722.7A CN104215156B (en) | 2014-09-28 | 2014-09-28 | Keyway reference block and the double keyway symmetry detectors of endoporus list |
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| CN104215156B true CN104215156B (en) | 2017-10-27 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105081886B (en) * | 2015-09-21 | 2017-08-08 | 四川崇泰石油机械有限公司 | Point moderate detection instrument of valve seat mounting hole in a kind of valve body process |
| CN105352417B (en) * | 2015-11-27 | 2018-06-26 | 沈阳飞机工业（集团）有限公司 | A kind of notch symmetry gauge and its application method |
| CN108195270B (en) * | 2018-01-08 | 2020-12-18 | 纽威石油设备（苏州）有限公司 | Valve body verticality measuring device |
| CN110879034B (en) * | 2019-11-24 | 2021-03-12 | 江苏苏麦克电力科技有限公司 | Detection apparatus for electric power fitting straightness that hangs down |
| CN110849265A (en) * | 2019-11-27 | 2020-02-28 | 中国航发沈阳黎明航空发动机有限责任公司 | Reference interference technology condition detection tool and use method thereof |
| CN112683142B (en) * | 2020-11-30 | 2022-07-01 | 山东齐鲁电机制造有限公司 | Tool and method for detecting symmetry degree of conical surface and double key grooves at steam end of steam turbine generator |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN203323686U (en) * | 2013-07-11 | 2013-12-04 | 安徽白兔湖动力有限公司 | Detecting tool for symmetry degree of crankshaft keyway |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2094030U (en) * | 1991-04-12 | 1992-01-22 | 李世功 | Axle keyway micrometer |
| CN201066266Y (en) * | 2007-05-11 | 2008-05-28 | 黄志敏 | Measuring device for internal key slot and external key slot |
| CN202255258U (en) * | 2011-10-11 | 2012-05-30 | 罗文翠 | Digital large-size inner hole key slot symmetry measuring instrument |
| CN202452943U (en) * | 2012-03-08 | 2012-09-26 | 江苏扬力集团有限公司 | Device for detecting symmetry of inner hole double key groove |
| CN202793292U (en) * | 2012-10-10 | 2013-03-13 | 无锡职业技术学院 | Symmetrical degree and depth measuring instrument used for double key grooves of inner bore |
| CN103424059B (en) * | 2013-08-19 | 2015-11-11 | 徐州工业职业技术学院 | Hole key-groove symmetry tester |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203323686U (en) * | 2013-07-11 | 2013-12-04 | 安徽白兔湖动力有限公司 | Detecting tool for symmetry degree of crankshaft keyway |
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