CN1075672A - Steel ball graduator - Google Patents
Steel ball graduator Download PDFInfo
- Publication number
- CN1075672A CN1075672A CN 92111974 CN92111974A CN1075672A CN 1075672 A CN1075672 A CN 1075672A CN 92111974 CN92111974 CN 92111974 CN 92111974 A CN92111974 A CN 92111974A CN 1075672 A CN1075672 A CN 1075672A
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- China
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- steel ball
- index dial
- graduator
- elastic ring
- indexing
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
Steel ball graduator belongs to multiple tooth indexing means.It has realized that the scale division value of end tooth indexing is variable.Load onto the steel ball that the diameter equal number equates respectively on the locating surface of upper and lower index dial, the elastic ring of going up jaggy tightly is enclosed within each steel ball outside of index dial, elastic ring down jaggy is tight against the inboard at following each steel ball of index dial.Respectively there is one to be fixed on the upper and lower index dial in two groups of steel balls with keeper.Directly increase or reduce the quantity of steel ball, can change the scale division value of index dial.The indexing accuracy height of this index dial can also can be used for existing steel ball graduation platform and differential indexing platform separately as the processing and the testing tool of precision.
Description
The invention belongs to multiple tooth indexing means, is the precision instrument of a kind of processing and detection.
Existing multiple tooth indexing means comprises end tooth indexing means and solid matter ball index (domestic and international multiple tooth index technology overview, author Shi Yongchao etc., " grinding machine and grinding ", 1980, No.3, P3～P10) and Erro-autocompensating index plate with steel balls (Chinese patent 85101981.1, the inventor is permitted fragrant paddy).They all are to utilize the engagement of upper and lower fluted disc or upper and lower steel ball dish to carry out calibration.Owing to will turn over a tooth or a steel ball at least during calibration, so whole circumference can only be divided into limited equal portions.The scale division value of end tooth indexing equals 360 ° divided by the number of teeth or steel ball number.Because the tooth of end tooth and dish are an integral body, and the steel ball of steel ball graduator to be solid matter be pressed in that dish goes up or stick with glue agent is linked on the dish, so after an index dial manufacturing was finished, its scale division value had just been determined, can not adjust in the use.
Weak point at above-mentioned existing multiple tooth index technology the invention provides a kind of steel ball graduator, and it has realized that the scale division value of end tooth indexing is variable, and easy to adjust, the indexing accuracy height.
For achieving the above object, technical solution of the present invention is: according to actual calibration needs, directly increase or reduce the steel ball number in the upper and lower index dial; Load onto the steel ball that the diameter equal number equates respectively on the locating surface of upper and lower index dial, go up the outside that elastic ring tightly is enclosed within each steel ball of index dial jaggy, following elastic ring jaggy is tight against the inboard at following each steel ball of index dial; Upper and lower elastic ring respectively be fixed on upper and lower index dial on fixed block be connected; Respectively there is a keeper to be fixed on the upper and lower index dial in two groups of steel balls, can moves about along circumference when remaining steel ball is stressed with the band V-shaped groove.The radially power of tightening up that elastic ring jaggy produces should satisfy condition: the axial friction that is produced by this power that tightens up is greater than the weight of steel ball, and steel ball does not fall when guaranteeing that index dial lifts.Because steel ball is flexibly to be fixed on the index dial, therefore can directly add or take out steel ball.The quantity of steel ball increase and decrease must be in guaranteeing the intermeshing condition and range of steel ball.This scope is determined jointly by the diameter of steel ball size and upper and lower index dial locating surface.Increase or reduce the quantity of steel ball, the scale division value of index dial also changes thereupon.This steel ball graduator can be used for steel ball graduation platform or differential steel ball graduation platform.
The present invention compares with existing end tooth indexing, and advantage is: (1) the present invention changes the scale division value of index dial within the specific limits, and therefore the function of such index dial just is equivalent to the function of many existing end tooth indexings.(2) realize precision round subsection easily.Existing end tooth indexing will obtain high indexing accuracy, maybe will grind through long, or want match grinding steel ball locating surface and hold-down ring, maybe will use complicated technique for sticking.The present invention fixes steel ball with flexible member, easy to manufacture.When along axially applying of this index dial is enough big and axis of rotation index dial is concentric power, because each steel ball of upper and lower index dial can move about, therefore will along the circumferential direction adjust automatically, all be meshing with each other until all steel balls.At this moment,, satisfy " error of division circle closure principle " on the whole though there is error the position of each steel ball, in theory, the error of division is zero.Actual index dial although the influence (as little drift at engagement center) of other factors is arranged, still can obtain very high indexing accuracy.(3) replace existing steel ball graduator with the present invention, then existing steel ball graduation platform becomes the variable steel ball graduation platform of scale division value; Existing differential end tooth circular dividing table is the variable differential steel ball graduation platform of scale division value.Thus, the range of application of multiple tooth index technology will be opened up extensively greatly.
Fig. 1 is the front view of this index dial.Fig. 2 is the vertical view of this index dial.Among Fig. 1:
Index dial 2-steel ball under the 1-
3-keeper 4-screw
5-encircles elastic ring under the fixed block 6-down
The last elastic ring 8-of 7-goes up the ring fixed block
The last index dial of 9-
Described in detail below in conjunction with accompanying drawing:
The positioning cylinder diameter of phi 67.65hg of index dial 9, height 5
-0.1; The setting circle diameter of phi 84.35Hg of following index dial 1; The last manufacturing procedure of the locating surface of upper and lower index dial is turning.Steel ball size Φ 6.35, not sorting of precision zero level (outsourcing); The upper and lower dish of steel ball number respectively is 36; Internal diameter Φ 79.9H9 before last elastic ring 7 gaps, external diameter Φ 86.5; Internal diameter Φ 65.5 before following elastic ring 6 gaps, external diameter Φ 72.1hg.Upper and lower index dial respectively has a steel ball fixing with keeper 3; Last elastic ring 7 tightly is enclosed within index dial 9 each steel ball outside, and following elastic ring is tight against the inboard at following index dial 1 each steel ball.Last elastic ring 7 sticks with glue agent E-3 with last ring fixed block 8, following elastic ring 6 and following ring fixed block 5 and is connected; Upper and lower ring fixed block 8 and 5, keeper 3 and upper and lower elastic ring height are
When apply 250kgf vertically with the concentric power of index dial axis the time, each steel ball will be adjusted automatically until all being meshing with each other.At this moment, the scale division value of this index dial is 360 °/36=10 °; The actual measurement indexing accuracy be: accumulative pitch error less than ±
If pull down index dial, directly on upper and lower index dial, increase or reduce the steel ball of equal number, just can change the scale division value of this index dial.For example, respectively take out 6 steel balls from upper and lower index dial, upper and lower index dial is meshed again, then the scale division value of index dial becomes: 360 °/30=12 °, the indexing accuracy of actual measurement still is: accumulative pitch error less than ±
By this index dial structure and steel ball size determine not destroy the be meshing with each other steel ball number of condition of steel ball be 27 to 36.Therefore, the function of such index dial just is equivalent to the function of 10 existing end tooth indexings, and, the indexing accuracy height.
Claims (3)
1, a kind of steel ball graduator comprises upper and lower index dial and connector thereof.It is characterized in that: the steel ball number of upper and lower index dial can require to increase or reduce according to scale division value; Load onto the steel ball that the diameter equal number equates respectively on the locating surface of upper and lower index dial, go up the outside that elastic ring tightly is enclosed within each steel ball of index dial jaggy, following elastic ring jaggy is tight against the inboard at following each steel ball of index dial; Upper and lower elastic ring respectively be fixed on upper and lower index dial on fixed block be connected; Respectively there is a keeper to be fixed on the upper and lower index dial in two groups of steel balls with the band V-shaped groove.
2, steel ball graduator according to claim 1 is characterized in that the steel ball graduation platform has steel ball graduator.
3, steel ball graduator according to claim 1 is characterized in that the differential indexing platform is equipped with steel ball graduator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN92111974A CN1044452C (en) | 1992-11-03 | 1992-11-03 | Steel ball graduator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN92111974A CN1044452C (en) | 1992-11-03 | 1992-11-03 | Steel ball graduator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1075672A true CN1075672A (en) | 1993-09-01 |
| CN1044452C CN1044452C (en) | 1999-08-04 |
Family
ID=4945667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN92111974A Expired - Fee Related CN1044452C (en) | 1992-11-03 | 1992-11-03 | Steel ball graduator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1044452C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102218673A (en) * | 2011-05-23 | 2011-10-19 | 安宁华创机械制造有限公司 | Control driving plate for depth of cut |
| CN103624612A (en) * | 2013-11-29 | 2014-03-12 | 大连理工大学 | High-precision multi-ball dividing and positioning device and machining and assembling method thereof |
| CN110756588A (en) * | 2019-10-15 | 2020-02-07 | 广东海亮铜业有限公司 | Core bar supporting mechanism and blank casting feeding equipment |
| CN116223849A (en) * | 2022-12-02 | 2023-06-06 | 廊坊市北斗神舟测控仪器有限公司 | Quartz flexible acceleration sensor scale factor test fixture |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017127944A (en) * | 2016-01-21 | 2017-07-27 | 昌弘 町田 | Indexing device of tool post |
| CN111872541B (en) * | 2020-07-29 | 2021-12-10 | 中国航空制造技术研究院 | Indexing device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85101981B (en) * | 1985-04-01 | 1987-12-02 | 重庆大学 | Error automatic compensation steel ball dividing disc |
| CN87203027U (en) * | 1987-03-07 | 1987-12-26 | 沈阳第一机床厂 | Rotating positioning-device |
| GB8923947D0 (en) * | 1989-10-24 | 1989-12-13 | Lk Ltd | Determination of spacial relationships |
-
1992
- 1992-11-03 CN CN92111974A patent/CN1044452C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102218673A (en) * | 2011-05-23 | 2011-10-19 | 安宁华创机械制造有限公司 | Control driving plate for depth of cut |
| CN103624612A (en) * | 2013-11-29 | 2014-03-12 | 大连理工大学 | High-precision multi-ball dividing and positioning device and machining and assembling method thereof |
| CN103624612B (en) * | 2013-11-29 | 2015-10-28 | 大连理工大学 | A kind of method for processing and assembling of high accuracy many balls calibration-positioner |
| CN110756588A (en) * | 2019-10-15 | 2020-02-07 | 广东海亮铜业有限公司 | Core bar supporting mechanism and blank casting feeding equipment |
| CN116223849A (en) * | 2022-12-02 | 2023-06-06 | 廊坊市北斗神舟测控仪器有限公司 | Quartz flexible acceleration sensor scale factor test fixture |
| CN116223849B (en) * | 2022-12-02 | 2023-10-20 | 廊坊市北斗神舟测控仪器有限公司 | Quartz flexible acceleration sensor scale factor test fixture |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1044452C (en) | 1999-08-04 |
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