CN202283602U - Centre - Google Patents
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- Publication number
- CN202283602U CN202283602U CN2011204215470U CN201120421547U CN202283602U CN 202283602 U CN202283602 U CN 202283602U CN 2011204215470 U CN2011204215470 U CN 2011204215470U CN 201120421547 U CN201120421547 U CN 201120421547U CN 202283602 U CN202283602 U CN 202283602U
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- CN
- China
- Prior art keywords
- centre
- aperture
- centre head
- pilot hole
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a centre, which comprises a body, wherein a centre head is arranged at the front end of the body; a small hole and a spiral groove are formed in the centre head; the axial direction of the small hole is perpendicular to that of the centre head; a starting point of the spiral groove is communicated with the small hole, and a finishing point of the spiral groove is close to a vertex of the front end of the centre head; a guiding hole communicated with the small hole is formed in a center of the rear end face of the body; and lubricating grease is filled into the guiding hole and the small hole. According to the centre, abrasion between workpieces and the centre can be reduced effectively when the workpieces are machined, so that the production efficiency and production quality of the workpieces are improved.
Description
Technical field
The utility model relates to a kind of lathe with top, belongs to the machine tool auxiliary device technical field.
Background technology
Lathe for precision and the axiality that guarantees workpiece, all can be installed the top workpiece that withstands at the lathe tail end when processing work.In process, because the high speed rotation of workpiece can make workpiece tail end and top contact position wear and tear, reduce top service life, axial runout takes place man-hour, the precision of reduction workpiece adding in the serious workpiece that also will make.Generally, in order to reduce wearing and tearing, operating personnel can with top contact position, smear last layer butter (being lubricating grease) at the workpiece tail end when installing and fixing workpiece.But find in the practical operation, do not improve abrasion condition.
The utility model content
The utility model purpose is to provide a kind of lathe that effectively reduces wearing and tearing with top for the deficiency that overcomes prior art.
For achieving the above object, the technical scheme that the utility model adopts is: a kind of top, comprise body; Said body front end is provided with the cone centre head; Have aperture and helicla flute on the said centre head; Said aperture and centre head axially perpendicular; Said spiral fluted starting point is communicated with aperture, and terminal point is near the forward end apex of centre head; In the heart, have the pilot hole that is communicated with aperture in the said body rear end face; Lubricating grease all is housed in said pilot hole and the aperture.
Preferably, said pilot hole is a counterbore, and the pilot hole changeover portion has chamfering.
Because the utilization of technique scheme, the utility model compared with prior art has advantage:
The utility model scheme top; Can make lubricating grease pass through to flow to the contact position of centre head and workpiece more continuously through helicla flute in the aperture of pilot hole entering centre head, reduce workpiece effectively and added man-hour; Workpiece and top wearing and tearing, the production efficiency and the quality of production of raising workpiece.
Description of drawings
Below in conjunction with accompanying drawing the utility model technical scheme is described further:
Accompanying drawing 1 is the top structural representation of the utility model;
Accompanying drawing 2 is the top axial cutaway view of the utility model;
Wherein: 1, body; 2, centre head; 3, aperture; 4, helicla flute; 5, pilot hole; 6, chamfering.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is done further to specify.
Accompanying drawing 1,2 is that the utility model is described a kind of top, comprises body 1; Said body 1 front end is provided with cone centre head 2; Have aperture 3 and helicla flute 4 on the said centre head 2; Said aperture 3 is axially perpendicular with centre head 2; The starting point of said helicla flute 4 is communicated with aperture 3, and terminal point is near the forward end apex of centre head 2; In the heart, have the pilot hole 5 that is communicated with aperture 3 in said body 1 rear end face; Said pilot hole 5 is a counterbore, and pilot hole 5 changeover portions have chamfering 6; In said pilot hole 5 and the aperture 3 lubricating grease is housed all.
Because the utilization of technique scheme, the utility model compared with prior art has advantage:
The utility model scheme top; Can make lubricating grease pass through to flow to the contact position of centre head and workpiece more continuously through helicla flute in the aperture of pilot hole entering centre head, reduce workpiece effectively and added man-hour; Workpiece and top wearing and tearing, the production efficiency and the quality of production of raising workpiece.
Below only be the concrete exemplary applications of the utility model, the protection domain of the utility model is not constituted any limitation.All employing equivalents or equivalence are replaced and the technical scheme of formation, or any to move mode dull and stereotyped described in the utility model, all drop within the utility model rights protection scope.
Claims (2)
- One kind top, comprise body, said body front end is provided with the cone centre head, it is characterized in that: have aperture and helicla flute on the said centre head; Said aperture and centre head axially perpendicular; Said spiral fluted starting point is communicated with aperture, and terminal point is near the forward end apex of centre head; In the heart, have the pilot hole that is communicated with aperture in the said body rear end face; Lubricating grease all is housed in said pilot hole and the aperture.
- 2. according to claim 1 top, it is characterized in that: said pilot hole is a counterbore, and the pilot hole changeover portion has chamfering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204215470U CN202283602U (en) | 2011-10-31 | 2011-10-31 | Centre |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204215470U CN202283602U (en) | 2011-10-31 | 2011-10-31 | Centre |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202283602U true CN202283602U (en) | 2012-06-27 |
Family
ID=46295137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204215470U Expired - Fee Related CN202283602U (en) | 2011-10-31 | 2011-10-31 | Centre |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202283602U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103752868A (en) * | 2013-12-23 | 2014-04-30 | 柳州市永信机械配件制造有限公司 | Compressed-air separation method for hollow locating thimble |
-
2011
- 2011-10-31 CN CN2011204215470U patent/CN202283602U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103752868A (en) * | 2013-12-23 | 2014-04-30 | 柳州市永信机械配件制造有限公司 | Compressed-air separation method for hollow locating thimble |
| CN103752868B (en) * | 2013-12-23 | 2016-05-18 | 柳州市永信机械配件制造有限公司 | The air pressing type separation method of hollow location thimble |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120627 Termination date: 20131031 |