CN203599995U - Center hole grinding thimble - Google Patents
Center hole grinding thimble Download PDFInfo
- Publication number
- CN203599995U CN203599995U CN201320673063.4U CN201320673063U CN203599995U CN 203599995 U CN203599995 U CN 203599995U CN 201320673063 U CN201320673063 U CN 201320673063U CN 203599995 U CN203599995 U CN 203599995U
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- CN
- China
- Prior art keywords
- thimble
- centre bore
- blades
- reconditioning
- center hole
- 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.)
- Expired - Fee Related
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- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The utility model discloses a center hole grinding thimble which comprises a cutter body and a base, wherein two symmetrical blades with cutting edges and two symmetrical guide blades without cutting edges are arranged on the cutter body. The cutter body is in a shape of a cone with a 60-degree vertex angle, and the blades and the guide blades are distributed in a windmill shape. According to the center hole grinding thimble, the cutter body is made of hard alloy materials, and therefore, service life of the center hole grinding thimble is greatly prolonged. The blades and the guide blades are distributed in a windmill shape, grinding accuracy of center holes is ensured, and grinding quality of center holes can reach high-standard requirements.
Description
Technical field
The utility model relates to a kind of centre bore reconditioning thimble, is specifically related to a kind of axle class centre bore reconditioning thimble.
Background technology
Mill working roll is the very high roll shaft of a kind of required precision, and its circularity and surface quality directly affect board quality.In process of production, because the reasons such as dismounting, improper rolling, roll quality cause roll centre bore circularity not good, cannot reach the requirement of 0.005mm.Therefore the not good roll of these centre bores is needed to reconditioning.
Traditional centre bore grinding method has: 1. repair and grind with shaping oilstone or elastic grinding wheel etc.; 2. cylinder iron top repairing ground; 3. with shaping circular cone emery wheel reconditioning centre bore; 4. with the top center lapping of scraping of carbide alloy rib band; 5. repair and grind with centre-hole grinder.Wherein, adopt the top center lapping of scraping of carbide alloy rib band, inefficiency, the centre bore of a roll of scraping is consuming time more than 2 hours, and the centre bore of every axle, because original precision has deviation, reach certain and unify required precision, need to repeatedly repair and grind just and can complete; For bearing industry, bearing demand has a large capacity and a wide range especially, need the long period just can enter next process and produce, and is unfavorable for batch production; And weak effect, the poor centre bore of part circularity is repaiied and is ground poor effect.Existing a kind of centre bore arrangement for grinding efficient, easy to use of active demand.
Utility model content
The purpose of this utility model is to provide a kind of centre bore reconditioning thimble efficient, easy to use.
In order to solve the problems of the technologies described above, the technical solution of the utility model is: a kind of centre bore reconditioning thimble, comprise cutter hub and pedestal, and described cutter hub is provided with symmetrical two blades with cutting edge and symmetrical without cutting edge two lead blade; Described cutter hub is taper, and conical apex angle angle is 60 degree; Described blade and lead blade and be windmill shape and arrange.
Centre bore reconditioning thimble provided by the utility model, cutter hub is prepared by Hardmetal materials, has greatly strengthened the service life of centre bore reconditioning thimble; Blade and lead blade and be that windmill shape arranges, guarantees the reconditioning precision of centre bore, reduces and repaiies the time of grinding, and guarantees that centre bore grinding quality reaches the requirement of high level.
Accompanying drawing explanation
Fig. 1 is the structural representation of centre bore reconditioning thimble provided by the utility model;
Fig. 2 is the left view of centre bore reconditioning thimble provided by the utility model;
Fig. 3 is the structural representation of centre bore reconditioning thimble provided by the utility model while not grinding blade;
Fig. 4 is the explosive view of centre bore reconditioning thimble provided by the utility model while not grinding blade.
Shown in figure: 1-cutter hub, 11-blade, 12-lead blade, 2-pedestal.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail: please refer to Fig. 1, a kind of centre bore reconditioning thimble, for comprising cutter hub 1 and pedestal 2, described cutter hub 1 is taper, conical apex angle angle is 60 degree.Described cutter hub 1 is provided with symmetrical two blades 11 with cutting edge and symmetrical without cutting edge two lead blade 12, described blade 11 and lead blade 12 and be windmill shape and arrange.
Preparation method: cutter hub 1 is filled in the hole of pedestal 2 fixing, by integrally welded to cutter hub 1 and pedestal 2; Processing cutter hub 1, grinds 60 degree thimble angles, and as shown in Figure 3, explosive view as shown in Figure 4 for now centre bore reconditioning thimble structure; Cutter hub 1 is ground to four blades again, remove the cutting edge of two symmetrical blades, form and lead blade 12, play the guiding role, finally obtain finished product centre bore reconditioning thimble, structure as depicted in figs. 1 and 2.The cutter hub of the centre bore reconditioning thimble that the present embodiment provides is latter half of the same with six seamed edge carbide-tipped center structures in prior art, is equivalent to rib band portion to make blade into.Bearing hardness is high, very high to the requirement of thimble, and the thimble that general material is made is easily scrapped, so this centre bore reconditioning thimble cutter hub is prepared by Hardmetal materials, hardness is high.
When use, please refer to Fig. 1, centre bore reconditioning thimble is arranged on grinding machine tailstock, grinding machine tailstock is advanced to workpiece direction, top tight workpiece is rotated counterclockwise workpiece under external force drives around centre bore reconditioning thimble.
In reconditioning process, adopt quantitative feeding, shutdown inspection size, prevents dimension overproof in time.
Centre bore reconditioning thimble provided by the utility model, cutter hub is prepared by Hardmetal materials, has greatly strengthened the service life of centre bore reconditioning thimble; Blade 11 and lead blade 12 and be that windmill shape arranges, guarantees the reconditioning precision of centre bore, reduces and repaiies the time of grinding, and guarantees that centre bore grinding quality reaches the requirement of high level.
Those skilled in the art can carry out various changes and modification and not depart from spirit and scope of the present utility model utility model.Like this, if within of the present utility model these are revised and modification belongs to the scope of the utility model claim and equivalent technologies thereof, the utility model is also intended to including these changes and modification.
Claims (1)
1. a centre bore reconditioning thimble, is characterized in that, comprises cutter hub (1) and pedestal (2), and described cutter hub (1) is provided with symmetrical two blades (11) with cutting edge and symmetrical without cutting edge two lead blade (12); Described cutter hub (1) is taper, and conical apex angle angle is 60 degree; Described blade (11) and lead blade (12) and be windmill shape and arrange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320673063.4U CN203599995U (en) | 2013-10-29 | 2013-10-29 | Center hole grinding thimble |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320673063.4U CN203599995U (en) | 2013-10-29 | 2013-10-29 | Center hole grinding thimble |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203599995U true CN203599995U (en) | 2014-05-21 |
Family
ID=50712694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320673063.4U Expired - Fee Related CN203599995U (en) | 2013-10-29 | 2013-10-29 | Center hole grinding thimble |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203599995U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107671718A (en) * | 2017-09-22 | 2018-02-09 | 哈尔滨汽轮机厂有限责任公司 | A kind of special power transmission shaft of taper pin reconditioning and its method for grinding |
| CN113134755A (en) * | 2021-04-27 | 2021-07-20 | 西安微电机研究所 | Center hole double-side grinding equipment |
-
2013
- 2013-10-29 CN CN201320673063.4U patent/CN203599995U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107671718A (en) * | 2017-09-22 | 2018-02-09 | 哈尔滨汽轮机厂有限责任公司 | A kind of special power transmission shaft of taper pin reconditioning and its method for grinding |
| CN113134755A (en) * | 2021-04-27 | 2021-07-20 | 西安微电机研究所 | Center hole double-side grinding equipment |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140521 |