CN107860292A - A kind of inner race chord length difference cubing - Google Patents
A kind of inner race chord length difference cubing Download PDFInfo
- Publication number
- CN107860292A CN107860292A CN201711302676.6A CN201711302676A CN107860292A CN 107860292 A CN107860292 A CN 107860292A CN 201711302676 A CN201711302676 A CN 201711302676A CN 107860292 A CN107860292 A CN 107860292A
- Authority
- CN
- China
- Prior art keywords
- steel ball
- inner race
- chord length
- length difference
- plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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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
- G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
-
- 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
- G01B5/0025—Measuring of vehicle parts
Abstract
The invention discloses a kind of inner race chord length difference cubing, including inner race, the lower section of the inner race is provided with the location-plate being fixedly connected with bottom plate, one end of the location-plate bottom is fixedly connected with steel ball platform, the top of the steel ball platform is provided with steel ball cover plate, the steel ball cover plate is fixedly connected by block with bottom plate, two steel balls are provided between the steel ball cover plate and steel ball platform, outer side surface of the block away from steel ball is provided with the second dial framework, second dial framework is fixedly connected with bottom plate, and the second amesdial is fixedly mounted in second dial framework.The present invention is simple and clear in structure, bounce of the sphere with respect to alley can also be reflected while special measurement can be done for the alley chord length difference of inner race, measurement accuracy is high, solves the problems, such as that complex curved surface parts need three-coordinate instrument device to measure, improves the efficiency of detection.
Description
Technical field
The present invention relates to auto parts field, more particularly to a kind of inner race chord length difference cubing.
Background technology
With the increasingly raising of people's living standard, automobile enters huge numbers of families, and the constant velocity driving shaft in auto parts machinery is
Vehicle is able to a kind of strength member driven, can cause automobile in turning process if the chord length difference numerical fluctuations of inner race are excessive
In there is phenomena such as clamping stagnation, even have the risk of off-axis during running at high speed, its size accuracy directly affects one
Car starting running stability, wherein the most key chord length difference quick detection annoyings vast manufacturer always, generally
Production line can do initial workpiece censorship, and detection means is three coordinate measurement instruments, and the instrument detected slowly, and also needed to program in advance, greatly
Ground has delayed the production at scene, while Quality Inspector needs to travel to and fro between sensing chamber in procedure inspection, reduces operating efficiency.
The content of the invention
The invention aims to solve shortcoming present in prior art, and a kind of inner race chord length difference proposed is examined
Tool.
To achieve these goals, present invention employs following technical scheme：
A kind of inner race chord length difference cubing, including inner race, the lower section of the inner race are provided with what is be fixedly connected with bottom plate
Location-plate, one end of the location-plate bottom are fixedly connected with steel ball platform, and the top of the steel ball platform is provided with steel ball cover plate,
The steel ball cover plate is fixedly connected by block with bottom plate, and two steel balls, institute are provided between the steel ball cover plate and steel ball platform
State outer side surface of the block away from steel ball and be provided with the second dial framework, second dial framework is fixedly connected with bottom plate, second dial framework
The second amesdial is fixedly mounted, the table bar of second amesdial offsets through the sphere of block and steel ball cover plate and inner race,
The described one end of steel ball cover plate away from block is provided with the first dial framework, and first dial framework is fixedly connected with bottom plate, first table
The first amesdial is fixedly mounted in frame, and the described one end of first amesdial table bar away from dial plate is provided with gauge head, the gauge head and steel ball
Offset.
Preferably, the height of the steel ball platform and the numerical value sum of steel ball radius are equal to inner race relative to steel ball platform
Alley center it is high.
Preferably, the position that the steel ball cover plate is in contact with steel ball is provided with spacing hole.
Preferably, the upper surface that the location-plate is in contact with inner race is provided with multiple grooves being parallel to each other.
Preferably, the lower surface of the bottom plate is provided with screwed hole, is fixedly connected with and keeps a foothold in the screwed hole, the bottom plate
Lower end is provided with waist round hole.
Preferably, the mark post of first amesdial and the contact position of the first dial framework are arranged with table set, and the described 2000th
The mark post of table and the contact position of the second dial framework is divided to be arranged with table set.
Preferably, the steel ball cover plate is additionally provided with alignment pin with block on the basis of bolt fixation.
Easy to operate in the present invention, principle is simple, when user uses the device, by inner race with dry cloth wiped clean,
Then upper surface of the inner race along location-plate is pushed at steel ball and spacing by block, now two alleys of inner race
Just offseted with two steel balls on steel ball platform, inner race can be positioned end face by the groove during push away on location-plate
Quenching casting skin is ground off, and increases measurement accuracy, during steel ball touches star jacketed-ball groove, two steel balls can be by the power of alley
Backwards to movement, gauge head is extruded now close to the steel ball of the first amesdial, the first amesdial shows registration, while between two steel balls
Inner race sphere contacted with the second amesdial and extrude the second amesdial, the second amesdial show registration, record registration after will
Inner race swing, and measured again according to above-mentioned steps, the registration of the first amesdial represents inner race alley ball two-by-two here
Chord length difference value between road, the registration of the second amesdial represent bounce numerical value of the sphere with respect to its both sides alley of inner race,
The numerical value of first amesdial is done contrast by operator can learn the chord length difference fluctuation situation of inner race, by the number of the second amesdial
Value, which does contrast, can learn the sphere bounce situation of inner race.The present invention is simple and clear in structure, can be directed to the ball of inner race
Road chord length difference can also be reflected bounce of the sphere with respect to alley that measurement accuracy is high, solves multiple while doing special measurement
The problem of miscellaneous curved surface part needs three-coordinate instrument device to measure, improve the efficiency of detection.
Brief description of the drawings
Fig. 1 is a kind of structural representation of inner race chord length difference cubing proposed by the present invention；
Fig. 2 is a kind of top view of inner race chord length difference cubing proposed by the present invention；
Fig. 3 is a kind of component assembly explosive view of inner race chord length difference cubing proposed by the present invention；
Fig. 4 is a kind of base arrangement schematic diagram of inner race chord length difference cubing proposed by the present invention；
Fig. 5 is a kind of steel ball coverplate parts figure of inner race chord length difference cubing proposed by the present invention；
Fig. 6 is a kind of location-plate two pieces figure of inner race chord length difference cubing proposed by the present invention.
In figure：1 keeps a foothold, 2 bottom plates, 201 screwed holes, 202 mounting holes, 3 first amesdials, 4 first dial frameworks, 5 second dial frameworks,
6 second amesdials, 7 steel ball cover plates, 701 spacing holes, 8 blocks, 9 location-plates, 901 grooves, 902 steel ball platforms, 10 inner races, 11
Table set, 12 steel balls, 13 gauge heads, 14 alignment pins.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.
Reference picture 1-6, a kind of inner race chord length difference cubing, including inner race 10, the lower section of inner race 10 are provided with and bottom plate 2
The location-plate 9 being fixedly connected, for positioning and supporting inner race 10, one end of the bottom of location-plate 9 is fixedly connected with steel ball platform
902, for supporting steel ball 12, the top of steel ball platform 902 is provided with steel ball cover plate 7, for steel ball 12 is spacing, steel ball cover plate 7
It is fixedly connected by block 8 with bottom plate 2, two steel balls 12 is provided between steel ball cover plate 7 and steel ball platform 902, is used for and star
The alley of set 10 is engaged, and outer side surface of the block 8 away from steel ball 12 is provided with the second dial framework 5, for supporting the second amesdial 6,
Second dial framework 5 is fixedly connected with bottom plate 2, and the second amesdial 6 is fixedly mounted in the second dial framework 5, for testing the chord length of inner race 10
Difference value, the table bar of the second amesdial 6 offset through the sphere of block 8 and steel ball cover plate 7 and inner race 10, and steel ball cover plate 7 is remote
One end from block 8 is provided with the first dial framework 4, and for supporting the first amesdial 3, the first dial framework 4 is fixedly connected with bottom plate 2, and first
The first amesdial 3 is fixedly mounted in dial framework 4, and for detecting the chord length difference value of inner race 10, the table bar of the first amesdial 3 is away from dial plate
One end be provided with gauge head 13, gauge head 13 is used to contact with steel ball 12, prevents that the shifting amount of steel ball 12 is excessive, the survey of the first amesdial 3
Amount point does not offset in the big path position of steel ball 12, gauge head 13 with steel ball 12.
In the present invention, the height of steel ball platform 902 is equal to inner race 10 relative to steel with the numerical value sum of the radius of steel ball 12
The alley center of ball platform 902 is high, what the numerical value that the first amesdial of guarantee is surveyed was embodied by the high position of inner race sphere centre,
The position that steel ball cover plate 7 is in contact with steel ball 12 is provided with spacing hole 701, reduces the shifting amount of steel ball 12, location-plate 9 and inner race
10 upper surfaces being in contact are provided with multiple grooves 901 being parallel to each other, and the quenching casting skin of bottom surface is positioned for scraping off inner race 10,
The lower surface of bottom plate 2 is provided with screwed hole 201, and 1 is kept a foothold for installing, and is fixedly connected with screwed hole 201 and keeps a foothold 1, the lower end of bottom plate 2
Provided with waist round hole 202, adjusted, the table bar and the first table of the first amesdial 3 in order to measure the inner race 10 of Multiple Type
The contact position of frame 4 is arranged with table set 11, and the contact position of the mark post of the second amesdial 6 and the second dial framework 5 is arranged with table and covers 11,
Mark post is prevented to be damaged, steel ball cover plate 7 is additionally provided with alignment pin 14 with block 8 on the basis of bolt fixation, prevents steel ball cover plate 7 from existing
Relative displacement occurs with block 8 in the case of long-time use.
Easy to operate in the present invention, principle is simple, and when user uses the device, inner race 10 is wiped with dry cloth
Only, then upper surface of the inner race 10 along location-plate 9 be pushed at steel ball 12 and spacing by block 8, now inner race
10 two alleys offset with two steel balls 12 on steel ball platform 902 just, the groove during push away on location-plate 9
The 901 quenching casting skins that inner race 10 can be positioned to end face are ground off, and increase measurement accuracy, the alley of inner race 10 is touched in steel ball 12
During, two steel balls 12 can be extruded gauge head by the power movement backwards of alley now close to the steel ball 12 of the first amesdial 3
13, the 1000th point of 3 tables show registration, while the sphere of inner race 10 between two steel balls 12 is contacted and squeezed with the second amesdial 6
Press the 6, the 2000th point of 6 table of the second amesdial to show registration, record and inner race 10 is rotated 60 degree after registration, and again according to above-mentioned
Step measures, and the registration of the first amesdial 3 represents chord length difference value of the inner race 10 two-by-two between alley alley here, and the 2000th
The registration of point table 6 represents bounce numerical value of the sphere with respect to its both sides alley of inner race 10, and operator is by the number of the first amesdial 3
Value, which does contrast, can learn the chord length difference fluctuation situation of inner race 10, and the numerical value of the second amesdial 6 is done into contrast can learn star
The sphere bounce situation of shape set 10.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should all be included within the scope of the present invention.
Claims (7)
1. a kind of inner race chord length difference cubing, including inner race (10), it is characterised in that the lower section of the inner race (10) is provided with
The location-plate (9) being fixedly connected with bottom plate (2), one end of location-plate (9) bottom are fixedly connected with steel ball platform (902),
The top of the steel ball platform (902) is provided with steel ball cover plate (7), and the steel ball cover plate (7) is solid by block (8) and bottom plate (2)
Fixed connection, two steel balls (12) are provided between the steel ball cover plate (7) and steel ball platform (902), the block (8) is away from steel ball
(12) outer side surface is provided with the second dial framework (5), and second dial framework (5) is fixedly connected with bottom plate (2), second dial framework
(5) the second amesdial (6) is fixedly mounted, the table bar of second amesdial (6) is through block (8) and steel ball cover plate (7) and star
The sphere of shape set (10) offsets, and the one end of the steel ball cover plate (7) away from block (8) is provided with the first dial framework (4), first table
Frame (4) is fixedly connected with bottom plate (2), and the first amesdial (3), first amesdial (3) is fixedly mounted in first dial framework (4)
The one end of table bar away from dial plate is provided with gauge head (13), and the gauge head (13) offsets with steel ball (12).
2. a kind of inner race chord length difference cubing according to claim 1, it is characterised in that the steel ball platform (902)
It is high relative to the alley center of steel ball platform (902) that height and the numerical value sum of steel ball (12) radius are equal to inner race (10).
3. a kind of inner race chord length difference cubing according to claim 1, it is characterised in that the steel ball cover plate (7) and steel
The position that ball (12) is in contact is provided with spacing hole (701).
4. a kind of inner race chord length difference cubing according to claim 1, it is characterised in that the location-plate (9) and star
The upper surface that set (10) is in contact is provided with multiple grooves (901) being parallel to each other.
A kind of 5. inner race chord length difference cubing according to claim 1, it is characterised in that the lower surface of the bottom plate (2)
Provided with screwed hole (201), it is fixedly connected with keep a foothold (1) in the screwed hole (201), bottom plate (2) lower end is provided with waist round hole
(202)。
6. a kind of inner race chord length difference cubing according to claim 1, it is characterised in that first amesdial (3)
The contact position of mark post and the first dial framework (4) is arranged with table set (11), the mark post and the second dial framework of second amesdial (6)
(5) contact position is arranged with table set (11).
7. a kind of inner race chord length difference cubing according to claim 1, it is characterised in that the steel ball cover plate (7) and gear
Block (8) is additionally provided with alignment pin (14) on the basis of bolt fixation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711302676.6A CN107860292A (en) | 2017-12-11 | 2017-12-11 | A kind of inner race chord length difference cubing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711302676.6A CN107860292A (en) | 2017-12-11 | 2017-12-11 | A kind of inner race chord length difference cubing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107860292A true CN107860292A (en) | 2018-03-30 |
Family
ID=61705280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711302676.6A Withdrawn CN107860292A (en) | 2017-12-11 | 2017-12-11 | A kind of inner race chord length difference cubing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107860292A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2726285C1 (en) * | 2020-02-10 | 2020-07-10 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Тверской государственный технический университет" | Method of measuring deviations of the arrangement of planes relative to the center of the outer spherical surface |
| RU2726294C1 (en) * | 2020-02-10 | 2020-07-10 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Тверской государственный технический университет" | Device for measuring deviations of arrangement of planes relative to center of external spherical surface |
| CN113175858A (en) * | 2021-04-06 | 2021-07-27 | 上海精新泽工业装备有限公司 | Special checking fixture for high-speed eight-lane product |
| RU2761425C1 (en) * | 2021-02-25 | 2021-12-08 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Тверской государственный технический университет" | Method for measuring the deviations of the planes relative to the center of the outer spherical surface |
| CN117128832A (en) * | 2023-10-27 | 2023-11-28 | 万向钱潮股份公司 | Checking fixture for star cover |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2468007Y (en) * | 2001-02-26 | 2001-12-26 | 万向钱潮股份有限公司 | Star shape angle position measurement instrument |
| CN2665661Y (en) * | 2003-12-08 | 2004-12-22 | 万向钱潮股份有限公司 | Device for detecting central height of star jacketed-ball groove |
| CN2704021Y (en) * | 2004-06-08 | 2005-06-08 | 万向钱潮股份有限公司 | Star-sleeve tracking indexing detecting tool |
| CN2704022Y (en) * | 2004-06-08 | 2005-06-08 | 万向钱潮股份有限公司 | Star sleeve track position detecting tool |
| CN2849647Y (en) * | 2005-07-29 | 2006-12-20 | 周俭 | Star cover ball way scale tester |
| CN201697599U (en) * | 2010-06-29 | 2011-01-05 | 宁波万航实业有限公司 | Tool for detecting the concentricity of spherical path of starlike inner race and spherical surface |
| CN202885745U (en) * | 2012-10-29 | 2013-04-17 | 无锡市迈日机器制造有限公司 | Checking fixture for scale division of flexible inner race ball groove |
| CN103630033A (en) * | 2013-11-29 | 2014-03-12 | 吉林北方捷凯传动轴有限公司 | Saloon car transmission shaft fixed end cardan joint inner ring fairway sphere center position detecting device |
| CN203731992U (en) * | 2014-03-10 | 2014-07-23 | 上海长锐汽车零部件有限公司 | Universal joint internal star-wheel ball groove radius difference measuring tool |
| CN204154250U (en) * | 2014-09-11 | 2015-02-11 | 杭州通绿机械有限公司 | A kind of star-wheel indexing detecting tool |
| CN205175329U (en) * | 2015-12-02 | 2016-04-20 | 芜湖天金机械有限公司 | Universal joint star cover channel concentricity detection device |
| CN206459606U (en) * | 2017-02-20 | 2017-09-01 | 浙江杭海汽车配件有限公司 | Sphere and alley coaxiality check fixture for machining high-precision inner race |
-
2017
- 2017-12-11 CN CN201711302676.6A patent/CN107860292A/en not_active Withdrawn
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2468007Y (en) * | 2001-02-26 | 2001-12-26 | 万向钱潮股份有限公司 | Star shape angle position measurement instrument |
| CN2665661Y (en) * | 2003-12-08 | 2004-12-22 | 万向钱潮股份有限公司 | Device for detecting central height of star jacketed-ball groove |
| CN2704021Y (en) * | 2004-06-08 | 2005-06-08 | 万向钱潮股份有限公司 | Star-sleeve tracking indexing detecting tool |
| CN2704022Y (en) * | 2004-06-08 | 2005-06-08 | 万向钱潮股份有限公司 | Star sleeve track position detecting tool |
| CN2849647Y (en) * | 2005-07-29 | 2006-12-20 | 周俭 | Star cover ball way scale tester |
| CN201697599U (en) * | 2010-06-29 | 2011-01-05 | 宁波万航实业有限公司 | Tool for detecting the concentricity of spherical path of starlike inner race and spherical surface |
| CN202885745U (en) * | 2012-10-29 | 2013-04-17 | 无锡市迈日机器制造有限公司 | Checking fixture for scale division of flexible inner race ball groove |
| CN103630033A (en) * | 2013-11-29 | 2014-03-12 | 吉林北方捷凯传动轴有限公司 | Saloon car transmission shaft fixed end cardan joint inner ring fairway sphere center position detecting device |
| CN203731992U (en) * | 2014-03-10 | 2014-07-23 | 上海长锐汽车零部件有限公司 | Universal joint internal star-wheel ball groove radius difference measuring tool |
| CN204154250U (en) * | 2014-09-11 | 2015-02-11 | 杭州通绿机械有限公司 | A kind of star-wheel indexing detecting tool |
| CN205175329U (en) * | 2015-12-02 | 2016-04-20 | 芜湖天金机械有限公司 | Universal joint star cover channel concentricity detection device |
| CN206459606U (en) * | 2017-02-20 | 2017-09-01 | 浙江杭海汽车配件有限公司 | Sphere and alley coaxiality check fixture for machining high-precision inner race |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2726285C1 (en) * | 2020-02-10 | 2020-07-10 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Тверской государственный технический университет" | Method of measuring deviations of the arrangement of planes relative to the center of the outer spherical surface |
| RU2726294C1 (en) * | 2020-02-10 | 2020-07-10 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Тверской государственный технический университет" | Device for measuring deviations of arrangement of planes relative to center of external spherical surface |
| RU2761425C1 (en) * | 2021-02-25 | 2021-12-08 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Тверской государственный технический университет" | Method for measuring the deviations of the planes relative to the center of the outer spherical surface |
| CN113175858A (en) * | 2021-04-06 | 2021-07-27 | 上海精新泽工业装备有限公司 | Special checking fixture for high-speed eight-lane product |
| CN117128832A (en) * | 2023-10-27 | 2023-11-28 | 万向钱潮股份公司 | Checking fixture for star cover |
| CN117128832B (en) * | 2023-10-27 | 2024-01-26 | 万向钱潮股份公司 | Checking fixture for star cover |
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Application publication date: 20180330 |