CN204912808U - Anti-scratch boring head with cooling device - Google Patents
Anti-scratch boring head with cooling device Download PDFInfo
- Publication number
- CN204912808U CN204912808U CN201520579618.8U CN201520579618U CN204912808U CN 204912808 U CN204912808 U CN 204912808U CN 201520579618 U CN201520579618 U CN 201520579618U CN 204912808 U CN204912808 U CN 204912808U
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- Prior art keywords
- roller
- mandrel
- knife rest
- cooling device
- boss
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- Expired - Fee Related
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 32
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims description 17
- 238000007790 scraping Methods 0.000 claims description 17
- 238000009966 trimming Methods 0.000 claims description 7
- 210000002421 cell wall Anatomy 0.000 claims description 6
- 238000009826 distribution Methods 0.000 claims description 6
- 230000013011 mating Effects 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 3
- 125000004122 cyclic group Chemical group 0.000 abstract 2
- 241000251468 Actinopterygii Species 0.000 abstract 1
- 230000001050 lubricating effect Effects 0.000 abstract 1
- 238000006748 scratching Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 7
- 239000002826 coolant Substances 0.000 description 6
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 6
- 238000005498 polishing Methods 0.000 description 5
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000012809 cooling fluid Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052752 metalloid Inorganic materials 0.000 description 2
- 150000002738 metalloids Chemical class 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 241001640558 Cotoneaster horizontalis Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000005021 gait Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000010412 perfusion Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007514 turning Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Drilling And Boring (AREA)
Abstract
The utility model provides a prevent boring head that scratches with cooling device, has dabber, holder and planar bearing of cyclic annular boss a including rotatory fixed blade disc, middle part, and wherein blade disc fixed connection is on the head dish of dabber, and the holder slip cover is established on the cyclic annular boss a at dabber middle part, and the planar bearing card is established between the screw thread on holder and the outer circumference of dabber tail end, rotatory fixed blade disc includes discoid knife rest and connects the boring cutter on the knife rest, and the knife rest medial surface is fixed in the dabber. The anti-scratching boring head with the cooling device realizes the purposes of lubricating and cooling the working part of the tool bit in real time by arranging the cooling device, improves the working environment of the tool bit, improves the working efficiency and reduces the cost of mechanical maintenance; through the setting that changes the roller hole, solved and dismantled the roller and must dismantle the problem of dabber earlier, set up the guide block of take the altitude simultaneously, avoided hard tool bit or roller and pipe inner wall to scratch and the fish tail inner wall.
Description
Technical field
The utility model relates to mechanical manufacturing field, is specially a kind of anti-scraping boring head with cooling device.
Background technology
The existing type of cooling used for the boring head processing tube blank inner wall, that liquid device was set at boring head and frame fixed position, think that when boring head rotary work tube blank inner wall sprays rust coolant liquid, but because boring head itself has certain length, and the direct of travel of boring head is contrary with the injection direction of rust coolant liquid, therefore in the use procedure of reality, when boring head gait of march is too fast or rotating speed is too high, the spray regime of existing rust coolant liquid just can not meet need of production, boring head cooling causes heating not in time, and state is excessive burns out cutter head, lubrication also can cause the series of problems such as boring head swaging clamp not in time.
The rear retainer that 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 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 a kind of anti-scraping boring head with cooling device, by arranging cooling device on mandrel, realize mandrel when work, can lubrication and cooling cooling be carried out in real time the working position of cutter head, improve the working environment of cutter head, improve operating efficiency, and reduce the cost of machinery overhaul; 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.
In order to solve the problems of the technologies described above, the technical scheme that the utility model adopts is:
A kind of anti-scraping boring head with cooling device, comprise and rotate fixing cutterhead, middle part is with the mandrel of annular boss a, retainer and plane bearing, wherein cutterhead is fixedly connected in the cephalic disc of mandrel, on the annular boss a that retainer is slidably located in the middle part of mandrel, plane bearing is fastened between the screw thread on retainer and mandrel tail end excircle, the cutterhead that described rotation is fixed comprises discoid knife rest and is connected to the boring cutter on knife rest, knife rest medial surface is fixed on mandrel, lateral surface offers centrosymmetric boss b, boss b arranges multiple holddown groove, described boring cutter comprises knife bar and is connected to the cutter head of knife bar one end, one end of cutter head protrude knife rest outer diameter face and with knife rest synchronous rotary, and cutter head is arranged in same plane, and it is parallel mutually often to organize place plane when cutter head rotates, described knife rest home position is also provided with seam, seam is a column type through hole, the limit shaft that corresponding end face of mandrel home position is arranged, limit shaft inserts in seam, knife rest is also provided with two locating slots, described locating slot be with seam be axle center be centrosymmetric distribution U-type groove, the opening direction of U-type groove is contrary with the direction of rotation of knife rest, at described locating slot, the inner side of knife rest is provided with the boss c of U-shaped structure, mandrel is also provided with two backstays with pressure cap, the corresponding locating slot in backstay position is arranged, the width in locating slot bottom boss c gap and the diameter of backstay match, one end of described backstay upper pressing cap is fastened on boss c, the other end screws in the screwed hole of mandrel, by locating slot and backstay mating reaction to realize clamping knife rest, described locating slot and backstay be positioned at same with the center of seam for the center of circle circumferentially, described mandrel is also provided with cooling device, the cephalic disc sidewall being positioned at mandrel is provided with liquid pass hole, liquid pass hole comprises mutual vertically disposed transverse tube and vertical tube two parts, wherein transverse tube runs through cephalic disc axle center and parallels with cephalic disc end face, the cutter head of transverse tube on the corresponding cutterhead in cephalic disc lateral opening position, vertical tube extends upwardly to transverse tube inner chamber by mandrel tail end along mandrel axle center, and vertical tube is provided with flow control valve at mandrel tail end, and described flow control valve is fixed on mandrel tail end and rotates with it.
Described retainer comprises being sheathed on mandrel and has 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, roller one end face is also provided with fore-set, described fore-set is solid cylindrical body, one end is absorbed in the fore-set groove in support body, the other end is against an end face center of roller, 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, the position that on described catch, bolt is fixed also is provided with the guide pad of the wear-resisting rectangular square that insulate, 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 knife bar afterbody is plugged in holddown groove, holddown groove is the at right angles trapezoidal groove of cross section, wherein, the angle of inclination cell wall and bottom land is 80-85 °, insert the shape of knife bar in holddown groove and the mating shapes of holddown groove, one end of puller bolt is through the vertical cell wall of holddown groove and the side held out against at knife bar, and one end of trimming bolt is through the sidewall of holddown groove and the tail end face held out against at knife bar; Described each group trimming bolt, puller bolt, holddown groove and boring cutter are all centrosymmetric distribution centered by the knife rest center of circle.
Described roller side and upper bottom surface coupling part are that cambered surface is arranged.
Compared with prior art, the utility model has following beneficial effect:
A kind of anti-scraping boring head with cooling device described in the utility model, by offering liquid pass hole in the position of the corresponding cutter head of mandrel side, make mandrel when band dynamic cutter head cuts tube blank inner wall, synchronously can carry out Cooling and Lubricator to cutting position, avoid because friction is overheated and burn out cutter head, compensate for and originally cooled halfway situation from boring head afterbody perfusion cooling fluid, extend the whole service life of boring head, improve the crudy of boring head, improvement of the present utility model is simple, easy processing, can on existing finished product boring head direct process and remould, can in industry promote the use of.
By roller hole on 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 cutter head structure schematic diagram of a kind of anti-scraping boring head with cooling device of the utility model;
Fig. 2 is the end face of mandrel structural representation of a kind of anti-scraping boring head with cooling device of the utility model;
To be that the holddown groove of a kind of anti-scraping boring head with cooling device of the utility model and knife bar coupling part are perpendicular cut open structural representation to Fig. 3;
To be that the holddown groove of a kind of anti-scraping boring head with cooling device of the utility model and knife bar coupling part are perpendicular cut open structural representation to Fig. 4;
Fig. 5 is the retainer structural representation of a kind of anti-scraping boring head with cooling device of the utility model;
Fig. 6 is the roller mounting means schematic diagram of a kind of anti-scraping boring head with cooling device of the utility model;
Fig. 7 is the core shaft structure schematic diagram of a kind of anti-scraping boring head with cooling device of the utility model;
To be that the mandrel of a kind of anti-scraping boring head with cooling device of the utility model is perpendicular cut open structural representation to Fig. 8;
Mark in figure: 1, cutterhead, 101, knife rest, 1001, trimming bolt, 1002, puller bolt, 1003, holddown groove, 102, boring cutter, 1021, knife bar, 1022, cutter head, 103, seam, 104, locating slot, 105, backstay, 1051, pressure cap, 106, limit shaft, 2, mandrel, 201, cephalic disc, 202, liquid pass hole, 203, flow control valve, 3, retainer, 301, support body, 302, roller hole, 303, roller, 304, catch, 305, bolt, 306, fore-set, 307, 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.
Described in the utility model a kind of with the cold anti-scraping boring head removing device, comprise and rotate fixing cutterhead 1, middle part is with the mandrel 2 of annular boss a, retainer 3 and plane bearing, wherein cutterhead 1 is fixedly connected in the cephalic disc 201 of mandrel 2, on the annular boss a that retainer 3 is slidably located in the middle part of mandrel 2, plane bearing is fastened between the screw thread on retainer 3 and mandrel 3 tail end excircle, the boring cutter 102 that the cutterhead 1 that described rotation is fixed comprises discoid knife rest 101 and is connected on knife rest 101, knife rest 101 medial surface is fixed on mandrel 2, lateral surface offers centrosymmetric boss b, boss b is arranged multiple holddown groove 1003, described boring cutter 102 comprises knife bar 1021 and is connected to the cutter head 1022 of knife bar 1021 one end, one end of cutter head 1022 protrude knife rest 101 outer diameter face and with knife rest 101 synchronous rotary, and cutter head 1022 is arranged in same plane, and it is parallel mutually often to organize place plane when cutter head 1022 rotates, described knife rest 101 home position is also provided with seam 103, seam 103 is a column type through hole, the limit shaft 106 that corresponding mandrel 2 end face home position is arranged, limit shaft 106 inserts in seam 103, knife rest 101 is also provided with two locating slots 104, described locating slot 104 be with seam 103 for axle center be centrosymmetric distribution U-type groove, the opening direction of U-type groove is contrary with the direction of rotation of knife rest 101, at described locating slot 104, the inner side of knife rest 101 is provided with the boss c of U-shaped structure, mandrel 2 is also provided with two backstays 105 with pressure cap 1051, the corresponding locating slot 104 in backstay 105 position is arranged, the width in locating slot 104 bottom boss c gap and the diameter of backstay 105 match, one end of described backstay 105 upper pressing cap 1051 is fastened on boss c, the other end screws in the screwed hole of mandrel 2, by locating slot 104 and backstay 105 mating reaction to realize clamping knife rest 101, described locating slot 104 and backstay 105 be positioned at same with the center of seam 103 for the center of circle circumferentially, guarantee that cutterhead 1 keeps balance in the process rotated, wearing and tearing can not be produced because of the cheap of centrifugal force, and cutter head 1022 is positioned at same plane, namely a cutter head 1022 is only had to carry out the cutting plane processed before, the multiple cutter head 1022 of present use cuts, and cutting rate significantly improves, and quality is also better comparatively before.
Described mandrel 2 is also provided with cooling device, cephalic disc 201 sidewall being positioned at mandrel 2 is provided with liquid pass hole 202, liquid pass hole 202 comprises mutual vertically disposed transverse tube and vertical tube two parts, wherein transverse tube runs through cephalic disc 201 axle center and parallels with cephalic disc 201 end face, the cutter head 1022 of transverse tube on the corresponding cutterhead 1 in cephalic disc 201 lateral opening position, vertical tube extends upwardly to transverse tube inner chamber by mandrel 2 tail end along mandrel 2 axle center, vertical tube is provided with flow control valve 203 at mandrel 2 tail end, described flow control valve 203 is fixed on mandrel 2 tail end and rotates with it, when mandrel 2 is along with drive rod rotation, rotary cutting is carried out with the 1022 pairs of tube blank inner walls of the cutter head on movable knife disc 1, because the rotating speed of mandrel 2 is very fast, a large amount of heat is produced with the mutual friction of tube blank inner wall phase in the process of rotating, now in liquid pass hole 202, flow out a large amount of rust coolant liquids, on the one hand the cutter head 1022 of heating is played to the effect of cooling, antirust composition on the other hand in cooling fluid can extend the service life of mandrel 2 and even whole boring head, reduce the maintain and replace cost of processing equipment.The rotating speed of mandrel 2 is different, the caloric value that cutter head 1022 rubs is also different, need the amount of rust coolant liquid also variant accordingly, the flow control valve 203 arranged at mandrel 2 tail end can control the amount of the rust coolant liquid that liquid pass hole 202 flows out, both can not spray and excessively cause waste, also can not because of the cooling fluid effect of impact cooling very little.
Described retainer 3 comprises being sheathed on mandrel 2 and has certain thickness circular support body 301, be arranged on the roller hole 302 and roller 303 that distribute for axle center is centrosymmetric on support body 301 and with its center of circle, described roller hole 302 is for being opened in the rectangular through-hole on support body 301, described roller 303 is for being arranged at the cylinder in roller hole 302, the diameter length of roller 303 is less than roller hole 302 width and is greater than the thickness of support body 301, roller 303 1 end face is also provided with fore-set 306, described fore-set 306 is solid cylindrical body, one end is absorbed in the fore-set groove in support body 301, the other end is against an end face center of roller 303, between adjacent two roller holes 302, catch 304 is also set, catch 304 length is greater than the length of cambered surface between adjacent two roller holes 302, be fastened on support body 301 by bolt 305 in the middle of it, two ends outwards tilt along roller 303, tilt the peak of height lower than roller 303 exterior arc surface, the position that on described catch 304, bolt 305 is fixing is also provided with the guide pad 307 of the wear-resisting rectangular square that insulate, the thickness of guide pad 307 is greater than the height of annular boss on mandrel, external arc peak when rational height is positioned on boss lower than roller 303.
Guide pad 307 preferably uses timber, and timber quality is softer, and when boring head exits pipe inner chamber, the guide pad 307 of surrounding is affixed to inwall, avoids cutterhead or roller 303 metalloid workpiece to scratch the tube blank inner wall processed.
Described catch 304 is rectangular, rectangle catch 304 all extends outward projection near the corner of roller 303, the peak of exterior arc surface when height of projection is positioned on boss lower than roller 303, rectangle catch 304 is inconvenient to adjust the height tilted in use, the projection of catch 304 4 jiaos of extensions then better can regulate the height of projection, if highly improper, sharp-crested tweezers can be used to adjust.
Described roller 303 side and upper bottom surface coupling part are that cambered surface is arranged, roller 303 edge that cambered surface is arranged, and make roller 303 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 307 be arranged on catch 304 is centrosymmetric and is distributed on the support body 301 of rear retainer, centrosymmetric set-up mode ensure that support body 301 can smooth rotation in the process worked with mandrel 2, avoids causing turning cylinder to deflection because of circumference discontinuity.
Described knife bar 1021 afterbody is plugged in holddown groove 1003, holddown groove 1003 is the at right angles trapezoidal groove of cross section, wherein, the angle of inclination cell wall and bottom land is 80-85 °, insert the shape of knife bar 1021 in holddown groove 1003 and the mating shapes of holddown groove 1003, one end of puller bolt 1002 through holddown groove 1003 vertical cell wall and hold out against in the side of knife bar 1021, one end of trimming bolt 1001 is through the sidewall of holddown groove 1003 and the tail end face held out against at knife bar 1021; Described each group trimming bolt 1001, puller bolt 1002, holddown groove 1003 and boring cutter 102 are all centrosymmetric distribution centered by knife rest 101 center of circle.
Claims (3)
1. the anti-scraping boring head with cooling device, comprise and rotate fixing cutterhead (1), middle part is with the mandrel (2) of annular boss a, retainer (3) and plane bearing, wherein cutterhead (1) is fixedly connected in the cephalic disc (201) of mandrel (2), retainer (3) is slidably located on the annular boss a at mandrel (2) middle part, plane bearing is fastened between the screw thread on retainer (3) and mandrel (3) tail end excircle, it is characterized in that: the cutterhead (1) that described rotation is fixed comprises discoid knife rest (101) and is connected to the boring cutter (102) on knife rest (101), knife rest (101) medial surface is fixed on mandrel (2), lateral surface offers centrosymmetric boss b, boss b is arranged multiple holddown groove (1003), described boring cutter (102) comprises knife bar (1021) and is connected to the cutter head (1022) of knife bar (1021) one end, one end of cutter head (1022) protrude knife rest (101) outer diameter face and with knife rest (101) synchronous rotary, and cutter head (1022) is arranged in same plane, and it is parallel mutually often to organize place plane when cutter head (1022) rotates, described knife rest (101) home position is also provided with seam (103), seam (103) is a column type through hole, the limit shaft (106) that corresponding mandrel (2) end face home position is arranged, limit shaft (106) inserts in seam (103), knife rest (101) is also provided with two locating slots (104), described locating slot (104) be with seam (103) for axle center be centrosymmetric distribution U-type groove, the opening direction of U-type groove is contrary with the direction of rotation of knife rest (101), the boss c of U-shaped structure is provided with at the inner side of the close knife rest (101) of described locating slot (104), mandrel (2) is also provided with two backstays with pressure cap (1051) (105), the corresponding locating slot (104) in backstay (105) position is arranged, the width in locating slot (104) bottom boss c gap and the diameter of backstay (105) match, one end of described backstay (105) upper pressing cap (1051) is fastened on boss c, the other end screws in the screwed hole of mandrel (2), by locating slot (104) and backstay (105) mating reaction to realize clamping knife rest (101), described locating slot (104) and backstay (105) be positioned at the same center with seam (103) be the center of circle circumferentially, described mandrel (2) is also provided with cooling device, cephalic disc (201) sidewall being positioned at mandrel (2) is provided with liquid pass hole (202), liquid pass hole (202) comprises mutual vertically disposed transverse tube and vertical tube two parts, wherein transverse tube runs through cephalic disc (201) axle center and parallels with cephalic disc (201) end face, the cutter head (1022) of transverse tube on the corresponding cutterhead (1) in cephalic disc (201) lateral opening position, vertical tube extends upwardly to transverse tube inner chamber by mandrel (2) tail end along mandrel (2) axle center, vertical tube is provided with flow control valve (203) at mandrel (2) tail end, described flow control valve (203) is fixed on mandrel (2) tail end and rotates with it.
2. a kind of anti-scraping boring head with cooling device as claimed in claim 1, it is characterized in that: described retainer (3) comprises being sheathed on mandrel (2) and has certain thickness circular support body (301), be arranged on roller hole (302) and roller (303) that support body (301) above and with its center of circle distributes for axle center is centrosymmetric, described roller hole (302) is for being opened in the rectangular through-hole on support body (301), described roller (303) is for being arranged at the cylinder in roller hole (302), the diameter length of roller (303) is less than roller hole (302) width and is greater than the thickness of support body (301), roller (303) one end face is also provided with fore-set (306), described fore-set (306) is solid cylindrical body, one end is absorbed in the fore-set groove in support body (301), the other end is against an end face center of roller (303), between adjacent two roller holes (302), catch (304) is also set, catch (304) length is greater than the length of cambered surface between adjacent two roller holes (302), be fastened on support body (301) by bolt (305) in the middle of it, two ends outwards tilt along roller (303), tilt the peak of height lower than roller (303) exterior arc surface, the position that the upper bolt (305) of described catch (304) is fixed also is provided with the guide pad (307) of the wear-resisting rectangular square that insulate, the thickness of guide pad (307) is greater than the height of annular boss on mandrel, external arc peak when rational height is positioned on boss lower than roller (303).
3. a kind of anti-scraping boring head with cooling device as claimed in claim 1, it is characterized in that: described knife bar (1021) afterbody is plugged in holddown groove (1003), holddown groove (1003) is the at right angles trapezoidal groove of cross section, wherein, the angle of inclination cell wall and bottom land is 80-85 °, insert the shape of knife bar (1021) in holddown groove (1003) and the mating shapes of holddown groove (1003), one end of puller bolt (1002) is through the vertical cell wall of holddown groove (1003) and the side held out against in knife bar (1021), one end of trimming bolt (1001) is through the sidewall of holddown groove (1003) and the tail end face held out against in knife bar (1021), described each group trimming bolt (1001), puller bolt (1002), holddown groove (1003) and boring cutter (102) are all centrosymmetric distribution centered by knife rest (101) center of circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520579618.8U CN204912808U (en) | 2015-08-05 | 2015-08-05 | Anti-scratch boring head with cooling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520579618.8U CN204912808U (en) | 2015-08-05 | 2015-08-05 | Anti-scratch boring head with cooling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204912808U true CN204912808U (en) | 2015-12-30 |
Family
ID=54961992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520579618.8U Expired - Fee Related CN204912808U (en) | 2015-08-05 | 2015-08-05 | Anti-scratch boring head with cooling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204912808U (en) |
-
2015
- 2015-08-05 CN CN201520579618.8U patent/CN204912808U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151230 Termination date: 20160805 |