CN204913188U - Novel holder before boring head - Google Patents
Novel holder before boring head Download PDFInfo
- Publication number
- CN204913188U CN204913188U CN201520579617.3U CN201520579617U CN204913188U CN 204913188 U CN204913188 U CN 204913188U CN 201520579617 U CN201520579617 U CN 201520579617U CN 204913188 U CN204913188 U CN 204913188U
- Authority
- CN
- China
- Prior art keywords
- roller
- hole
- support body
- boring head
- catch
- 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
Links
Abstract
The utility model provides a novel holder before boring head, the roller is for setting up the cylinder in roller hole, and the length of diameter of roller is greater than the roller hole width and be less than the thickness of support body, still sets up the separation blade between two adjacent roller hole, and separation blade length is greater than the length of cambered surface between the two adjacent roller hole, among them through the bolt -up on the support body, both ends along the outside perk of roller, the perk highly is less than roller external circular arc surfaces's peak. The utility model discloses novel holder before boring head, through with roller hole on the preceding holder from outer coniform hole change big in little for the unanimous rectangular hole of last under shed, the problem of the roller overhaul to change to dismantle and fall the dabber and ab intra change is solved, cooperation through rectangular hole and separation blade is used, the roller can outwards not deviate from along with the dabber pivoted time, when needing to overhaul with the change, it can outwards pour the roller to remove the separation blade, simplified and overhauld the process of changing the roller, the operating time who overhauls has been saved.
Description
Technical field
The utility model relates to mechanical manufacturing field, is specially retainer before a kind of novel boring head.
Background technology
The front retainer that general boring head uses is all the roller rolling retainer for polishing tube blank inner wall, after use after a while, needs to overhaul it, occurs that the roller damaged needs to change.But the mounting means of roller is not easy to maintenance and changes very much on existing boring head.On the support body of front retainer, normally offer outer little interior tapered roller hole greatly, support body outside opening area is less than roller vertical section and amasss, first the mandrel of boring head is pulled down during installation, roller is put into inside tapered roller hole, be set in again on mandrel, eject roller by mandrel from inside, make a roller part protrude tapered roller hole, rotate along with the rotation of mandrel during work, polishing is carried out to tube blank inner wall.If need to overhaul roller or change in the use procedure of boring head, need first whole boring head to be pulled down from lathe, then disassemble mandrel and retainer, then take out the roller damaged from the inner side of retainer, whole operation very loaded down with trivial details.
Utility model content
The purpose of this utility model is to provide retainer before a kind of novel boring head, by changing the setting of roller hole, matching used catch does not hinder the normal work of roller while roller is not deviate from blocking, solve the problem that dismounting roller first must dismantle mandrel, simplify the operation of maintenance boring head, save manpower and materials.
In order to the roller on retainer before solving boring head is inconvenient to the problem overhauling and change, the technical scheme that the utility model adopts is:
Retainer before a kind of novel boring head, comprise being sheathed on mandrel and there is certain thickness circular support body, be arranged on the roller hole and roller that distribute for axle center is centrosymmetric on support body and with its center of circle, described roller hole is the rectangular through-hole be opened on support body, described roller is the cylinder be arranged in roller hole, the diameter length of roller is less than roller hole width and is greater than the thickness of support body, between adjacent two roller holes, also catch is set, catch length is greater than the length of cambered surface between adjacent two roller holes, be fastened by bolts on support body in the middle of it, two ends outwards tilt along roller, tilt the peak of height lower than roller exterior arc surface.
Described catch is rectangular, rectangle catch all extends outward projection near the corner of roller, height of projection is lower than the peak of roller exterior arc surface, rectangle catch is inconvenient to adjust the height tilted in use, the projection of catch corner extension then better can regulate the height of projection, if highly improper, sharp-crested tweezers can be used to adjust.
Described roller side and upper bottom surface coupling part are that cambered surface is arranged, the roller edge that cambered surface is arranged, and make roller there will not be cut when carrying out compacting polishing to pipe sidewall, effectively can improve the quality of compacting polishing.
Compared with prior art, the utility model has following beneficial effect:
Retainer before a kind of novel boring head of the utility model, by roller hole on front retainer is changed to the consistent rectangular opening of upper and lower opening from outer little interior large coniform hole, solve roller examine and replace and must disassemble the problem that mandrel changes from inside, by rectangular opening and catch with the use of, roller can not outwards be deviate from when rotating with mandrel, when needing maintenance and change, remove catch roller outwards to be poured out, simplify the operation of examine and replace roller, save the working time of maintenance.
Accompanying drawing explanation
Fig. 1 is the structural representation of retainer before a kind of novel boring head of the utility model;
Fig. 2 is the roller mounting means schematic diagram of retainer before a kind of novel boring head of the utility model;
Mark in figure: 1, support body, 2, roller hole, 3, roller, 4, catch, 5, bolt, 6, mandrel.
Detailed description of the invention
Below in conjunction with accompanying drawing, by detailed description of the invention, the utility model is further described.
As shown in the figure, retainer before the novel boring head of one described in the utility model, comprise being sheathed on mandrel 6 and there is certain thickness circular support body 1, be arranged on the roller hole 2 and roller 3 that distribute for axle center is centrosymmetric on support body 1 and with its center of circle, described roller hole 2 is for being opened in the rectangular through-hole on support body 1, described roller 3 is for being arranged at the cylinder in roller hole 2, the diameter length of roller 3 is less than roller hole 2 width and is greater than the thickness of support body 1, between adjacent two roller holes 2, catch 4 is also set, catch 4 length is greater than the length of cambered surface between adjacent two roller holes 2, be fastened on support body 1 by bolt 5 in the middle of it, two ends outwards tilt along roller 3, tilt the peak of height lower than roller 3 exterior arc surface.
In the process that boring head uses, the catch 4 that support body 1 outer is fixed guarantees that roller 3 can not drop out roller hole 2, needs the bolt 5 dismantling lower fixing catch 4 when carrying out examine and replace to roller 3, roller 3 can be poured out.
Described catch 4 is rectangular, rectangle catch 4 all extends outward projection near the corner of roller 3, height of projection is lower than the peak of roller 3 exterior arc surface, rectangle catch is inconvenient to adjust the height tilted in use, the projection of catch corner extension then better can regulate the height of projection, if highly improper, sharp-crested tweezers can be used to adjust.
Described roller 3 side and upper bottom surface coupling part are that cambered surface is arranged, the roller edge that cambered surface is arranged, and make roller there will not be cut when carrying out compacting polishing to pipe sidewall, effectively can improve the quality of compacting polishing.
Claims (3)
1. retainer before a novel boring head, comprise being sheathed on mandrel (6) and there is certain thickness circular support body (1), be arranged on roller hole (2) and roller (3) that support body (1) above and with its center of circle distributes for axle center is centrosymmetric, it is characterized in that: described roller hole (2) is for being opened in the rectangular through-hole on support body (1), described roller (3) is for being arranged at the cylinder in roller hole (2), the diameter length of roller (3) is less than roller hole (2) width and is greater than the thickness of support body (1), between adjacent two roller holes (2), catch (4) is also set, catch (4) length is greater than the length of cambered surface between adjacent two roller holes (2), be fastened on support body (1) by bolt (5) in the middle of it, two ends outwards tilt along roller (3), tilt the peak of height lower than roller (3) exterior arc surface.
2. retainer before a kind of novel boring head as claimed in claim 1, it is characterized in that: described catch (4) is rectangular, rectangle catch (4) all extends outward projection near the corner of roller (3), and height of projection is lower than the peak of roller (3) exterior arc surface.
3. retainer before a kind of novel boring head as claimed in claim 1, is characterized in that: described roller (3) side and upper bottom surface coupling part are that cambered surface is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520579617.3U CN204913188U (en) | 2015-08-05 | 2015-08-05 | Novel holder before boring head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520579617.3U CN204913188U (en) | 2015-08-05 | 2015-08-05 | Novel holder before boring head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204913188U true CN204913188U (en) | 2015-12-30 |
Family
ID=54962368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520579617.3U Expired - Fee Related CN204913188U (en) | 2015-08-05 | 2015-08-05 | Novel holder before boring head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204913188U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106392464A (en) * | 2016-11-29 | 2017-02-15 | 河海大学 | Symmetric cone rolling part and device |
-
2015
- 2015-08-05 CN CN201520579617.3U patent/CN204913188U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106392464A (en) * | 2016-11-29 | 2017-02-15 | 河海大学 | Symmetric cone rolling part and device |
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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: 20151230 Termination date: 20160805 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |