CN204912849U - Holder behind boring head preventing scratching - Google Patents
Holder behind boring head preventing scratching Download PDFInfo
- Publication number
- CN204912849U CN204912849U CN201520579632.8U CN201520579632U CN204912849U CN 204912849 U CN204912849 U CN 204912849U CN 201520579632 U CN201520579632 U CN 201520579632U CN 204912849 U CN204912849 U CN 204912849U
- Authority
- CN
- China
- Prior art keywords
- roller
- boring head
- support body
- catch
- 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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- Drilling And Boring (AREA)
Abstract
The utility model provides a holder behind boring head preventing scratching, the roller is for setting up the cylinder in roller hole, and the length of diameter of roller is less than the roller hole width and be greater 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, external circular arc surfaces's peak when both ends highly are less than the roller and are located on the boss along the roller perk, the position of bolt fastening still is equipped with the guide block on the separation blade, and the thickness of guide block is greater than the height of spindle annular boss, sets up outer circular arc peak when highly being less than the roller and lieing in on the boss. Holder behind boring head preventing scratching, has solved the roller and overhaul to have changed must to dismantle and fall the problem that the dabber was changed ab intra, when overhaul and change, remove the separation blade and can outwards pour the roller, simplify working process and save time, set up the guide block on the separation blade and support, avoid the pipe inner wall fish tail of metalwork to processing, influence and process the effect.
Description
Technical field
The utility model relates to field of machining, is specially retainer after a kind of anti-scraping boring head.
Background technology
The rear 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 rear 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.
The processing of tube blank inner wall is from one end, be polished to the other end along inwall roll extrusion always, then boring head extracted out in the pipe processed, but in the process of extracting out, cutterhead on boring head and roller may scratch to tube blank inner wall, affect polishing effect.
Utility model content
The purpose of this utility model is to provide retainer after a kind of anti-scraping 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, the guide pad of certain altitude is set simultaneously, guide pad adopts insulation wear-resistant material, when exiting boring head after machining in pipe, guide pad contacts with tube blank inner wall, avoids hard cutter head or roller and tube blank inner wall and scratches and scratch inwall.
Be inconvenient to dismantle in order to the roller on retainer after solving boring head and process the problem exiting boring head and easily occur to scratch, the technical scheme that the utility model adopts is:
Retainer after a kind of anti-scraping boring head, comprise on the mandrel that is sheathed on annular boss 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 exterior arc surface when height is positioned on boss lower than roller, be positioned at the guide pad that position that bolt fixes also is provided with the rectangular square be made up of insulation wear-resistant material on described catch, the thickness of guide pad is greater than the height of annular boss on mandrel, external arc peak when rational height is positioned on boss lower than roller.
Described guide pad preferably uses timber, and timber quality is softer, and when boring head exits pipe inner chamber, the guide pad of surrounding is affixed to inwall, avoids cutterhead or roller metalloid workpiece to scratch the tube blank inner wall processed.
Described catch is rectangular, rectangle catch all extends outward projection near the corner of roller, the peak of exterior arc surface when height of projection is positioned on boss lower than roller, 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.
The described guide pad be arranged on catch be centrosymmetric be distributed in rear retainer support body on, centrosymmetric set-up mode ensure that support body can smooth rotation in the process with mandrel work, avoids causing turning cylinder to deflection because of circumference discontinuity.
Compared with prior art, the utility model has following beneficial effect:
Retainer after a kind of anti-scraping boring head described in the utility model, by roller hole on rear 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 overhauling and change, remove catch roller outwards to be poured out, simplify the operation of examine and replace roller, save the working time of maintenance, guide pad catch being arranged timber material supports, when boring head is exited from pipe inner chamber, cutterhead or roller metalloid workpiece do not contact inwall, metalwork is avoided to scratch the tube blank inner wall processed, affect processing effect.
Accompanying drawing explanation
Fig. 1 is the structural representation of retainer after a kind of anti-scraping boring head of the utility model;
Fig. 2 is the roller mounting means schematic diagram of retainer after a kind of anti-scraping boring head of the utility model;
Mark in figure:, 1, support body, 2, roller hole, 3, roller, 4, catch, 5, bolt, 6, mandrel, 7, guide pad.
Detailed description of the invention
Below in conjunction with accompanying drawing, by detailed description of the invention, the utility model is further described.
Retainer after a kind of anti-scraping boring head, comprise on the mandrel 6 that is sheathed on annular boss 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 exterior arc surface when height is positioned on boss lower than roller 3, the position that on described catch 4, bolt 5 is fixing is also provided with the guide pad 7 of the wear-resisting rectangular square that insulate, the thickness of guide pad 7 is greater than the height of annular boss on mandrel, external arc peak when rational height is positioned on boss lower than roller 3.
Described guide pad 7 preferably uses timber, and timber quality is softer, and when boring head exits pipe inner chamber, the guide pad 7 of surrounding is affixed to inwall, avoids cutterhead or roller 3 metalloid workpiece to scratch the tube blank inner wall processed.
Described catch 4 is rectangular, rectangle catch 4 all extends outward projection near the corner of roller 3, the peak of exterior arc surface when height of projection is positioned on boss lower than roller 3, rectangle catch 4 is inconvenient to adjust the height tilted in use, the projection of catch 4 four jiaos of extensions 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 3 there will not be cut when carrying out compacting polishing to pipe sidewall, effectively can improve the quality of compacting polishing.
The described guide pad 7 be arranged on catch 4 is centrosymmetric and is distributed on the support body 1 of rear retainer, centrosymmetric set-up mode ensure that support body 1 can smooth rotation in the process with mandrel work, avoids causing turning cylinder to deflection because of circumference discontinuity.
Claims (4)
1. retainer after an anti-scraping boring head, comprise on the mandrel (6) that is sheathed on annular boss 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 exterior arc surface when height is positioned on boss lower than roller (3), be positioned at the guide pad (7) that the fixing position of bolt (5) is also provided with the rectangular square be made up of insulation wear-resistant material on described catch (4), the thickness of guide pad (7) is greater than the height of annular boss on mandrel, external arc peak when rational height is positioned on boss lower than roller (3).
2. retainer after a kind of anti-scraping boring head as claimed in claim 1, it is characterized in that: described catch (4) is rectangular, rectangle catch (4) all extends outward projection, the peak of exterior arc surface when height of projection is positioned on boss lower than roller (3) near the corner of roller (3).
3. retainer after a kind of anti-scraping 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.
4. retainer after a kind of anti-scraping boring head as claimed in claim 1, is characterized in that: described in the guide pad (7) be arranged on catch (4) be centrosymmetric be distributed in rear retainer support body (1) on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520579632.8U CN204912849U (en) | 2015-08-05 | 2015-08-05 | Holder behind boring head preventing scratching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520579632.8U CN204912849U (en) | 2015-08-05 | 2015-08-05 | Holder behind boring head preventing scratching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204912849U true CN204912849U (en) | 2015-12-30 |
Family
ID=54962032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520579632.8U Expired - Fee Related CN204912849U (en) | 2015-08-05 | 2015-08-05 | Holder behind boring head preventing scratching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204912849U (en) |
-
2015
- 2015-08-05 CN CN201520579632.8U patent/CN204912849U/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: 20151230 Termination date: 20160805 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |