CN87203027U - Rotating positioning-device - Google Patents
Rotating positioning-device Download PDFInfo
- Publication number
- CN87203027U CN87203027U CN 87203027 CN87203027U CN87203027U CN 87203027 U CN87203027 U CN 87203027U CN 87203027 CN87203027 CN 87203027 CN 87203027 U CN87203027 U CN 87203027U CN 87203027 U CN87203027 U CN 87203027U
- Authority
- CN
- China
- Prior art keywords
- pedestal
- steel ball
- panoramic table
- positioning
- utility
- 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- Withdrawn
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Abstract
The utility model discloses a mechanical rotating positioning device. The utility model has the advantages of simple structure, low cost, high precision, and long keeping precision. The structure of the utility model is that three accurate positioning steel balls is cooperated with a 60 DEG conical bore to realize the accurate positioning. The loose and locking state is completed by the three bigger steel balls which are supported by the spring and a locking nut, and the function of the coarse positioning is completed simultaneously. The rotating positioning division. Device can be used for the mechanisms, such as machine tool work bench, cutter carrier, cutter head, or precise machines which need rotating positioning.
Description
The utility model relates to a kind of mechanical device, especially for the precision rotating positioner on the lathe, as knife rest, cutterhead, workbench etc.
Before the utility model is made, parts rotational positioning and main fluted disc mechanism or the pin mechanism of adopting of locking.When precision prescribed is high, mainly use accurate fluted disc mechanism, the Taiwan patent 74209270 of bulletin was exactly the circular cutter holder of usefulness fluted disc as on August 1st, 1986.Because fluted disc is made complicated, cost is very high, can only be used for top grade such as Digit Control Machine Tool mechanically.Pin mechanism makes simple, and cost is low, but precision is not high.
Task of the present utility model provides a kind of low cost, high-precision turning positioning apparatus.
Technical solution of the present utility model is: on panoramic table and face that pedestal combines, a plurality of round taper holes are arranged, it is on the circumference in the center of circle that these holes are distributed on the centre of gyration.On pedestal, be evenly equipped with six holes at least, these holes can overlap with conical bore on the panoramic table, put into steel ball in the hole of pedestal, below three steel balls of hexagonal angle distribution, support therein by spring, play the effect of panoramic table and base-separation, remaining steel ball and hole closely cooperate and expose half, play pinpoint effect.When unclamping panoramic table, the spring steel ball of upspringing lifts panoramic table, the steel ball that the panoramic table lower surface is higher than expose half on the pedestal and freely turning round.When after making panoramic table turn over certain angle, depressing panoramic table, there is the steel ball of spring at first to enter round taper hole on the panoramic table below, plays the effect of coarse positioning with machinery or manpower.Follow accurate locking ball and enter corresponding conical bore on the panoramic table.When panoramic table and pedestal compressed, three accurate locking balls and conical bore tight connecting had played the effect of pinpoint effect and locking.According to above-mentioned principle, the position of locating hole also can be on pedestal, and steel ball and spring is contained on the panoramic table.
The utility model will be further described below in conjunction with accompanying drawing:
Fig. 1 is the profile of a kind of specific embodiment of the present utility model.
The lower surface of panoramic table 5 has six conical locating holes 12 at least, and being distributed on the centre of gyration is on the circumference in the center of circle, and the cone angle of conical bore 12 is preferentially selected 60 ° for use.The centre of gyration of panoramic table 5 has tie down screw 10, is equipped with successively on the tie down screw 10 to adjust pressure pad 4, thrust bearing 3, locking nut 2, caging bolt 1.Tie down screw 10 is contained on the pedestal 9.On the surface of pedestal 9 with panoramic table 5 conical bores 12 corresponding positions on uniform 3 shallow blind holes, expose after the degree of depth in hole is put into steel ball 11 near half for well, so that the steel ball 11 motionless diameters of determining the hole for principle.Locate three dark blind holes for 60 ° apart from shallow blind hole, put into spring 8 and coarse positioning steel ball 7 in the hole.The diameter of steel ball 7 can make the location reliable more preferably greater than steel ball 11 like this, and steering resistance is little, but also can use the steel ball of same diameter.In order to prevent that dust from entering detent mechanism, dust ring 6 is housed on panoramic table 5.Frictional force was to the influence of positioning accuracy when thrust bearing 3 can reduce locking nut 2 rotations.Caging bolt 1 can limit unnecessary stroke and nut 2 and steel ball 7 and come off.Adjust pressure pad 4 and be used for compensating workpiece size error in the process, to guarantee mechanism's reliable operation, if process parts size precision height, pressure pad 4 also can omit, should change the size of locking nut 2 this moment, and thrust bearing 3 directly is contained in above the panoramic table 5.Coarse positioning steel ball 7 and accurate locking ball 11 also can be on same circumference, and the conical locating hole on the corresponding panoramic table 5 also will have two circles.The number of locating hole decides according to each revolution location minimum angles.
Because this detent mechanism is to coincide with ball and conical bore to locate, so it is very little to the impact of precision in use to wear and tear. Therefore device described in the utility model has very high repetitive positioning accuracy and permanent precision stability energy.
The utility model can be used for lathe cutter saddle, cutterhead, rotary table, indexing mechanism etc., also can be used for mechanically being used for accurately turning round the parts of locating. When being used for lathe saddle than economizing 1/3 cost with fluted disc mechanism.
Claims (4)
1, a kind of precision rotating positioner of forming by panoramic table 5, pedestal 9, tie down screw 10, thrust bearing 3, locking nut 2, it is characterized in that: on the faying face of panoramic table 5 and pedestal 9, a plurality of round taper holes are arranged, it is on the circumference in the center of circle that these holes are distributed on the centre of gyration, on pedestal 9, be evenly equipped with six holes at least, these holes can overlap with conical bore on the panoramic table 5, put into steel ball 11 and 7 in the hole of pedestal 9, wherein steel ball 7 has three to become hexagonal angle uniform and supported by spring 8, and all the other steel balls 11 tightly are contained on the pedestal 9 and expose half.
2, device according to claim 1 is characterized in that the cone angle of conical bore 12 is preferentially selected 60 ° for use.
3, device according to claim 1 is characterized in that conical bore 12 also can be on pedestal 9, and steel ball 7,11, spring 8 are contained on the panoramic table 5.
4,, it is characterized in that steel ball 7 is greater than steel ball 11 according to claim 1 or 3 described devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87203027 CN87203027U (en) | 1987-03-07 | 1987-03-07 | Rotating positioning-device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87203027 CN87203027U (en) | 1987-03-07 | 1987-03-07 | Rotating positioning-device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN87203027U true CN87203027U (en) | 1987-12-26 |
Family
ID=4819074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87203027 Withdrawn CN87203027U (en) | 1987-03-07 | 1987-03-07 | Rotating positioning-device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN87203027U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1044452C (en) * | 1992-11-03 | 1999-08-04 | 陈兵奎 | Steel ball graduator |
| CN101357446B (en) * | 2007-08-01 | 2010-08-04 | 天润曲轴股份有限公司 | Crankshaft milling crutch indexing fixture |
| 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 |
| TWI608892B (en) * | 2016-01-21 | 2017-12-21 | Tool table indexing device |
-
1987
- 1987-03-07 CN CN 87203027 patent/CN87203027U/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1044452C (en) * | 1992-11-03 | 1999-08-04 | 陈兵奎 | Steel ball graduator |
| CN101357446B (en) * | 2007-08-01 | 2010-08-04 | 天润曲轴股份有限公司 | Crankshaft milling crutch indexing fixture |
| 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 |
| TWI608892B (en) * | 2016-01-21 | 2017-12-21 | Tool table indexing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |