CN203519028U - Precise rotary positioning platform - Google Patents
Precise rotary positioning platform Download PDFInfo
- Publication number
- CN203519028U CN203519028U CN201320603637.0U CN201320603637U CN203519028U CN 203519028 U CN203519028 U CN 203519028U CN 201320603637 U CN201320603637 U CN 201320603637U CN 203519028 U CN203519028 U CN 203519028U
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- mandrel
- retainer
- millimeter
- stationary body
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Abstract
The utility model discloses a precise rotary positioning platform. The precise rotary positioning platform comprises a mandrel, a shaft holder is sleeved outside the mandrel at an interval, an upper part and a lower part of the shaft holder are provided with two groups of ball holes, and steel balls are disposed in the ball holes; the steel balls have different rotary tracks, and a main body is sleeved outside the shaft holder at an interval; and two axial ends of the fixed main body are respectively provided with an upper end face holder and a lower end face holder at intervals, the upper end face holder and the lower end face holder have the same structure, are disc-shaped and are respectively provided with more than 20 ball holes, and steel balls are disposed in the ball holes. An upper cover is disposed above the upper end face holder at an interval, and the middle of the upper cover is fixedly connected with the mandrel through screws; a lower cover is disposed below the lower end face holder at an interval, and a butterfly-shaped spring is disposed in a circular groove of the lower cover; and the upper cover is upwardly and fixedly connected with a brake disc positioning platform. According to the precise rotary positioning platform, the friction of the positioning platform can be reduced in the case that the measuring precision is not affected, so that the measuring precision and the service life of a measuring instrument can be improved as much as possible.
Description
Technical field
The utility model relates to a kind of mechanical positioner of precision measurement equipment, is mainly used in the location of the composite measurements such as brake disc.
Background technology
In existing brake disc measuring equipment, need to allow brake disc rotate and measure.Current brake disc locating platform is all fixed, in rotation process, between brake disc and locating platform, there is relative motion, normal, use after a period of time, brake disc locating platform there will be compared with galling, thereby make brake disc locating platform lose precision, cause measurement result distortion, so also just shortened the serviceable life of brake disc locating platform.
Utility model content
The purpose of this utility model is to provide a kind of precision rotating locating platform.
For achieving the above object, precision rotating locating platform of the present utility model comprises mandrel, and mandrel radially-outer surface spacer sleeve is provided with axle retainer, and the upper and lower of axle retainer is provided with two groups of ball holes, the quantity in every group of ball hole is no less than 10, in each ball hole, is respectively equipped with steel ball with high precision; The rotary track of each steel ball with high precision is all not identical herein, and the radially-outer surface spacer sleeve of axle retainer is provided with stationary body; Along mandrel radially, the steel ball with high precision one end and the crimping of mandrel phase and the other end and the crimping of stationary body phase at described axle retainer place; The axial two ends of stationary body are interval with respectively upper surface retainer and lower surface retainer, upper and lower end face retainer structure is identical, all in the form of annular discs, and is equipped with 20 above ball holes, in each ball hole, be respectively equipped with steel ball with high precision, the rotary track of each steel ball with high precision is all not identical herein; Retainer top, upper surface is interval with upper cover, and upper cover middle part is fixedly connected with mandrel by screw; Along stationary body axially, the lower end of the steel ball with high precision at retainer place, upper surface and the phase crimping of stationary body upper surface and its upper end and the crimping of upper cover lower surface phase; Retainer below, lower surface is interval with lower cover, and lower cover lower surface is provided with circular groove, is provided with disk spring in circular groove; The mandrel of disk spring below is bolted with gland nut, and gland nut presses described disk spring; Upper cover is upwards fixedly connected with brake disc locating platform.
Gap between described axle retainer and mandrel is 0.1-0.2 millimeter; The precision of described steel ball with high precision is everywhere ± and 0.0005 millimeter; The endoporus cylindricity of described stationary body is less than 0.001 millimeter, and the flatness of stationary body end face is less than 0.001 millimeter, and the verticality of stationary body end face and endoporus is less than 0.001 millimeter; The cylindricity of described mandrel is less than 0.001 millimeter, and the flatness of the both ends of the surface up and down of described upper cover and the depth of parallelism are all less than 0.001 millimeter, and the flatness of the upper and lower both ends of the surface of described lower cover is all less than 0.001 millimeter; The flatness of the upper and lower both ends of the surface of described brake disc locating platform and the depth of parallelism are all less than 0.001 millimeter.
On described stationary body, be fixedly connected with abutment ring.
The utility model is simple in structure, is convenient to manufacture and use.Due to the utility model in use, brake disc and locating platform together rotate, there is not each other relative motion, thereby so the utility model can in the situation that not affecting measuring accuracy, reduce measuring accuracy and the serviceable life that the friction of locating platform improves surveying instrument as much as possible.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the enlarged drawing at A place in Fig. 1.
Embodiment
As depicted in figs. 1 and 2, precision rotating locating platform of the present utility model comprises mandrel 2, mandrel 2 radially-outer surface spacer sleeves are provided with axle retainer 8, the upper and lower of axle retainer 8 is provided with two groups of ball holes, and (it is this area routine techniques that steel ball is set in ball hole, figure does not show ball hole and steel ball herein), the quantity in every group of ball hole is no less than 10, in each ball hole, is respectively equipped with steel ball with high precision 11.The rotary track of each steel ball with high precision is all not identical herein.
The radially-outer surface spacer sleeve of axle retainer 8 is provided with stationary body 1; Along mandrel 2 radially, the steel ball with high precision one end at described axle retainer 8 places and mandrel 2 phase crimping and the other end and stationary body 1 phase crimping.
The axial two ends of stationary body 1 are interval with respectively upper surface retainer 12 and lower surface retainer 5, upper and lower end face retainer 12,5 structures are identical, all in the form of annular discs, and be equipped with 20 above ball holes 13, in each ball hole 13, be respectively equipped with in steel ball with high precision 11(Fig. 1 and Fig. 2 and only illustrate ball hole and steel ball herein, do not express in detail all balls hole and steel ball herein).In upper and lower end face retainer 12,5, the rotary track of each steel ball with high precision 11 is all not identical.
It is prior art that upper cover 3 is upwards fixedly connected with brake disc locating platform 10(brake disc locating platform by pin and screw, and figure is not shown in detail its structure).
Gap between described axle retainer 8 and mandrel 2 is 0.1-0.2 millimeter; The precision of described steel ball with high precision everywhere 11 is ± and 0.0005 millimeter.
The endoporus cylindricity of described stationary body 1 is less than 0.001 millimeter, and the flatness of stationary body 1 end face is less than 0.001 millimeter, and the verticality of stationary body 1 end face and endoporus is less than 0.001 millimeter.
The cylindricity of described mandrel 2 is less than 0.001 millimeter, and the flatness of the both ends of the surface up and down of described upper cover 3 and the depth of parallelism are all less than 0.001 millimeter, and the flatness of described lower cover both ends of the surface Shang Xia 4 is all less than 0.001 millimeter.
Flatness and the depth of parallelism of described brake disc locating platform both ends of the surface Shang Xia 10 are all less than 0.001 millimeter.
Gap between described upper surface retainer 12 and described stationary body 1 and upper cover 3 is 1 millimeter, and the gap between described lower surface retainer 5 and described stationary body 1 and described lower cover 4 is 1 millimeter.
On described stationary body 1, be fixedly connected with abutment ring, abutment ring is for being connected with outside mechanical hook-up.
During manufacture, mandrel 2 and upper cover 3 are connected by screw, then steel ball with high precision 11 is placed on upper surface retainer 12 and axle retainer 8, be then enclosed within together on mandrel 2, then stationary body 1 is pressed, stationary body 1 presses described steel ball 11.Then put lower surface retainer 5, in the ball hole 13 of lower surface retainer 5, load onto steel ball 11, put lower cover 4 and disk spring 9, then with gland nut 7, disk spring 9 is compressed, by pin and screw, load onto brake disc locating platform 10.During brake disk mounted locating platform 10, at brake disc locating platform 10 and axle, be that on end face, (being upper cover 3 places) each right boring goes out two dowel holes, by pin and screw, brake disc locating platform 10 being fixed on to axle is on end face.Integral body of the present utility model is connected with other outside mechanical hook-up by abutment ring.
During use, the utility model can make 10 revolutions of brake disc locating platform, the face runout that can guarantee again brake disc locating platform 10 in 0.002 millimeter simultaneously, coaxiality error is in 0.02 millimeter, meet the measurement requirement of brake disc, improve measuring accuracy and the serviceable life of surveying instrument.
Claims (3)
1. precision rotating locating platform, it is characterized in that: comprise mandrel, mandrel radially-outer surface spacer sleeve is provided with axle retainer, and the upper and lower of axle retainer is provided with two groups of ball holes, the quantity in every group of ball hole is no less than 10, in each ball hole, is respectively equipped with steel ball with high precision; The rotary track of each steel ball with high precision is all not identical herein,
The radially-outer surface spacer sleeve of axle retainer is provided with stationary body; Along mandrel radially, the steel ball with high precision one end and the crimping of mandrel phase and the other end and the crimping of stationary body phase at described axle retainer place;
The axial two ends of stationary body are interval with respectively upper surface retainer and lower surface retainer, upper and lower end face retainer structure is identical, all in the form of annular discs, and is equipped with 20 above ball holes, in each ball hole, be respectively equipped with steel ball with high precision, the rotary track of each steel ball with high precision is all not identical herein;
Retainer top, upper surface is interval with upper cover, and upper cover middle part is fixedly connected with mandrel by screw; Along stationary body axially, the lower end of the steel ball with high precision at retainer place, upper surface and the phase crimping of stationary body upper surface and its upper end and the crimping of upper cover lower surface phase;
Retainer below, lower surface is interval with lower cover, and lower cover lower surface is provided with circular groove, is provided with disk spring in circular groove; The mandrel of disk spring below is bolted with gland nut, and gland nut presses described disk spring;
Upper cover is upwards fixedly connected with brake disc locating platform.
2. precision rotating locating platform according to claim 1, is characterized in that: the gap between described axle retainer and mandrel is 0.1-0.2 millimeter; The precision of described steel ball with high precision is everywhere ± and 0.0005 millimeter;
The endoporus cylindricity of described stationary body is less than 0.001 millimeter, and the flatness of stationary body end face is less than 0.001 millimeter, and the verticality of stationary body end face and endoporus is less than 0.001 millimeter;
The cylindricity of described mandrel is less than 0.001 millimeter, and the flatness of the both ends of the surface up and down of described upper cover and the depth of parallelism are all less than 0.001 millimeter, and the flatness of the upper and lower both ends of the surface of described lower cover is all less than 0.001 millimeter;
The flatness of the upper and lower both ends of the surface of described brake disc locating platform and the depth of parallelism are all less than 0.001 millimeter.
3. precision rotating locating platform according to claim 1 and 2, is characterized in that: on described stationary body, be fixedly connected with abutment ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320603637.0U CN203519028U (en) | 2013-09-29 | 2013-09-29 | Precise rotary positioning platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320603637.0U CN203519028U (en) | 2013-09-29 | 2013-09-29 | Precise rotary positioning platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203519028U true CN203519028U (en) | 2014-04-02 |
Family
ID=50377947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320603637.0U Expired - Fee Related CN203519028U (en) | 2013-09-29 | 2013-09-29 | Precise rotary positioning platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203519028U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104019840A (en) * | 2014-06-05 | 2014-09-03 | 安庆市鑫源机械厂 | Precision measuring stage |
| CN113958603A (en) * | 2021-10-12 | 2022-01-21 | 中国科学院光电技术研究所 | High-precision dense-bead shaft system |
-
2013
- 2013-09-29 CN CN201320603637.0U patent/CN203519028U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104019840A (en) * | 2014-06-05 | 2014-09-03 | 安庆市鑫源机械厂 | Precision measuring stage |
| CN113958603A (en) * | 2021-10-12 | 2022-01-21 | 中国科学院光电技术研究所 | High-precision dense-bead shaft system |
| CN113958603B (en) * | 2021-10-12 | 2023-07-18 | 中国科学院光电技术研究所 | High-precision dense bead shafting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140402 Termination date: 20140929 |
|
| EXPY | Termination of patent right or utility model |