CN204487278U - Ball index - Google Patents
Ball index Download PDFInfo
- Publication number
- CN204487278U CN204487278U CN201420817158.3U CN201420817158U CN204487278U CN 204487278 U CN204487278 U CN 204487278U CN 201420817158 U CN201420817158 U CN 201420817158U CN 204487278 U CN204487278 U CN 204487278U
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- China
- Prior art keywords
- ball
- cannelure
- index
- steel ball
- last time
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- Expired - Fee Related
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Abstract
The utility model discloses a kind of ball index, comprise base, the indexing-positioning mechanism for rotary being arranged on the workbench on base and being arranged between the two, described indexing-positioning mechanism for rotary comprise be connected with workbench last time rotating disk and with the lower rotary disk that base is connected, described last time rotating disk and lower rotary disk on be provided with in, outer annular groove, described last time rotating disk and lower rotary disk in, outer annular groove correspondence is arranged, in described, circle steel ball the utility model ball index is all arranged with by each two enclosing steel balls replacement contrate gears up and down in outer annular groove, utilize error-correction model, improve indexing accuracy.
Description
Technical field
The utility model belongs to the technical field of indexing means, specifically relates to a kind of ball index.
Background technology
Rotary table is the indexing means of revolution class multi-station machine tool, during work, workpiece is arranged on table surface by fixture, prior circular index location, thus make the processing component high speed of each station of lathe, stable, complete the manufacturing procedure in each face of workpiece exactly, the index dial indexing accuracy of existing contrate gear is not high, Chinese patent 201110235633.7 description discloses a kind of index table, comprise rotary disk, chassis, positioning inserted pin mechanism and steel ball, horizontal positioned can realize the slewing equipment of angle orientation, fast and easy can realize the circumferential angle location that many specifications difference waits point requirement, this steel ball graduator indexing accuracy is for the high work pieces process still existing defects of indexing accuracy.
Summary of the invention
In view of this, the purpose of this utility model is to provide a kind of ball index, and this ball index, by each two enclosing steel balls replacement contrate gears up and down, utilizes error-correction model, improves indexing accuracy.
In order to achieve the above object, a kind of ball index of the utility model, the indexing-positioning mechanism for rotary comprising base, be arranged on the workbench on base and be arranged between the two, described indexing-positioning mechanism for rotary comprise be connected with workbench last time rotating disk and with the lower rotary disk that base is connected, described last time rotating disk and lower rotary disk on be provided with inside and outside cannelure, described last time rotating disk and lower rotary disk on inside and outside cannelure correspondence arrange, be all arranged with a circle steel ball in described inside and outside cannelure.
Further, in or beyond corresponding described interior cannelure, in cannelure, interior steel ball size size is identical.
Further, be set to big steel ball in described interior cannelure, in described outer annular groove, be set to small ball.
Further, the radius of described big steel ball is not less than 6mm, and its diameter deviation and Global Error are in+0.3 μm.
Further, the radius of described small ball is not less than 4mm, and its diameter deviation and Global Error are in-0.3 μm
Further, described last time rotating disk and lower rotary disk contact surface be the installation locating surface of steel ball, its flatness is no more than 1 μm.
Further, cannelure is interference fit with coordinating of steel ball, and the monolateral magnitude of interference controls between 2 ~ 4 μm, and the axis of retainer steel ball cannelure and location-plate axis hole should be evenly arranged in same circumference.
The beneficial effects of the utility model are:
The utility model ball index is by each two enclosing steel balls replacement contrate gears up and down, and utilize error-correction model, indexing accuracy is within ± 0.5.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model ball index.
Reference numeral: 1-big steel ball; 2-rotating disk last time; Rotary disk under 3-; 4-handle; 5-eccentric wheel; 6-sleeve; 7-thrust bearing; 8-workbench; 9-small ball; 10-base.
Detailed description of the invention
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail.
Be illustrated in figure 1 the structural representation of the utility model ball index; A kind of ball index of the utility model, the indexing-positioning mechanism for rotary comprising base 10, be arranged on the workbench 8 on base 10 and be arranged between the two, described indexing-positioning mechanism for rotary comprise be connected with workbench 8 last time rotating disk and with the lower rotary disk 3 that base is connected, described last time rotating disk 2 and lower rotary disk 3 on be provided with inside and outside cannelure, described last time rotating disk 2 and lower rotary disk 3 on inside and outside cannelure correspondence arrange, be all arranged with a circle steel ball in described inside and outside cannelure.
The present embodiment can by being provided with turning cylinder on base 10, described turning cylinder is provided with eccentric wheel 5, turning cylinder end is provided with the handle 4 driving eccentric wheel 5 movement, sleeve 6 moves up and down with eccentric wheel 6, and workbench 8 is fixed on sleeve 6 by thrust bearing 7, after workbench 8 rises, rotary work-table 8 carries out calibration, this structure by up and down each two circle steel balls replace original contrate gear, utilize error-correction model, indexing accuracy is within ± 0.5.
Further, in or beyond preferred corresponding described interior cannelure, in cannelure, interior steel ball size size is identical, big steel ball 1 is set in preferred described interior cannelure, small ball 9 is set in described outer annular groove, the radius of preferred described big steel ball is not less than 6mm, and its diameter deviation and Global Error are in+0.3 μm, the radius of preferred described small ball is not less than 4mm, and its diameter deviation and Global Error are in-0.3 μm, the present embodiment by the Global Error of big steel ball and small ball respectively at ± 0.3 μm, utilize error-correction model principle, make indexing accuracy higher, locating effect is better.
Further, preferred described last time rotating disk 2 and lower rotary disk 3 contact surface be the installation locating surface of steel ball, its flatness is no more than 1 μm, preferred cannelure is interference fit with coordinating of steel ball, the monolateral magnitude of interference controls between 2 ~ 4 μm, the axis of retainer steel ball cannelure and location-plate axis hole should be evenly arranged in same circumference, this structure in use, along with trickle wearing and tearing with engage collision deformation, the quantity of the steel ball that the leveling effect of error can make participation locate increases, thus improves the combined and divided and positioning precision of this device further.
What finally illustrate is, above preferred embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, although be described in detail the utility model by above preferred embodiment, but those skilled in the art are to be understood that, various change can be made to it in the form and details, and not depart from the utility model claims limited range.
Claims (6)
1. a ball index, the indexing-positioning mechanism for rotary comprising base, be arranged on the workbench on base and be arranged between the two, it is characterized in that: described indexing-positioning mechanism for rotary comprise be connected with workbench last time rotating disk and with the lower rotary disk that base is connected, described last time rotating disk and lower rotary disk on be provided with inside and outside cannelure, described last time rotating disk and lower rotary disk on inside and outside cannelure correspondence arrange, be all arranged with a circle steel ball in described inside and outside cannelure.
2. ball index as claimed in claim 1, is characterized in that: in or beyond corresponding described interior cannelure, in cannelure, interior steel ball size size is identical.
3. ball index as claimed in claim 2, is characterized in that: be set to big steel ball in described interior cannelure, be set to small ball in described outer annular groove.
4. ball index as claimed in claim 3, it is characterized in that: the radius of described big steel ball is not less than 6mm, and its diameter deviation and Global Error is in+0.3 μm.
5. ball index as claimed in claim 3, it is characterized in that: the radius of described small ball is not less than 4mm, and its diameter deviation and Global Error is in-0.3 μm
Ball index as claimed in claim 3, is characterized in that: described last time rotating disk and lower rotary disk contact surface be the installation locating surface of steel ball, its flatness is no more than 1 μm.
6. ball index as claimed in claim 3, is characterized in that: cannelure is interference fit with coordinating of steel ball, and the monolateral magnitude of interference controls between 2 ~ 4 μm, and the axis of retainer steel ball cannelure and location-plate axis hole should be evenly arranged in same circumference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420817158.3U CN204487278U (en) | 2014-12-22 | 2014-12-22 | Ball index |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420817158.3U CN204487278U (en) | 2014-12-22 | 2014-12-22 | Ball index |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204487278U true CN204487278U (en) | 2015-07-22 |
Family
ID=53566571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420817158.3U Expired - Fee Related CN204487278U (en) | 2014-12-22 | 2014-12-22 | Ball index |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204487278U (en) |
-
2014
- 2014-12-22 CN CN201420817158.3U patent/CN204487278U/en not_active Expired - Fee Related
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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: 20150722 Termination date: 20161222 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |