CN102189608A - Adjustable diamond chamfering drilling bit - Google Patents
Adjustable diamond chamfering drilling bit Download PDFInfo
- Publication number
- CN102189608A CN102189608A CN 201110079070 CN201110079070A CN102189608A CN 102189608 A CN102189608 A CN 102189608A CN 201110079070 CN201110079070 CN 201110079070 CN 201110079070 A CN201110079070 A CN 201110079070A CN 102189608 A CN102189608 A CN 102189608A
- Authority
- CN
- China
- Prior art keywords
- chamfering
- bit
- parent part
- diamond
- cover
- 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.)
- Granted
Links
- 239000010432 diamond Substances 0.000 title claims abstract description 69
- 229910003460 diamond Inorganic materials 0.000 title claims abstract description 67
- 238000005553 drilling Methods 0.000 title abstract description 19
- 239000011159 matrix material Substances 0.000 claims description 31
- NRTLIYOWLVMQBO-UHFFFAOYSA-N 5-chloro-1,3-dimethyl-N-(1,1,3-trimethyl-1,3-dihydro-2-benzofuran-4-yl)pyrazole-4-carboxamide Chemical compound C=12C(C)OC(C)(C)C2=CC=CC=1NC(=O)C=1C(C)=NN(C)C=1Cl NRTLIYOWLVMQBO-UHFFFAOYSA-N 0.000 claims description 10
- 230000004323 axial length Effects 0.000 claims description 3
- 239000002826 coolant Substances 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims 1
- 238000003780 insertion Methods 0.000 claims 1
- 239000000498 cooling water Substances 0.000 abstract description 31
- 239000000463 material Substances 0.000 abstract description 22
- 238000012545 processing Methods 0.000 abstract description 18
- 238000003754 machining Methods 0.000 abstract description 5
- 230000003044 adaptive effect Effects 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052755 nonmetal Inorganic materials 0.000 abstract 1
- 238000000034 method Methods 0.000 description 12
- 230000008569 process Effects 0.000 description 11
- 241001074085 Scophthalmus aquosus Species 0.000 description 5
- 239000011521 glass Substances 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 235000013312 flour Nutrition 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 241001347978 Major minor Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000005336 safety glass Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
Images
Landscapes
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
The invention relates to an adjustable diamond chamfering drilling bit which comprises a connecting parent part, a chamfering sleeve and the drilling bit. One end of the connecting parent part is provided with a connector which is matched with a connecting structure of a drilling machine; and the other end of the connecting parent part is connected with the chamfering sleeve and the drilling bit. A gap exists between the inner wall of the chamfering sleeve and the outer wall of the base of the drilling bit; a small water passing hole is arranged at the working position of the chamfering sleeve; and a main and auxiliary double-channel cooling water passageway ensures that the cooling water reaches all working surfaces in the whole machining process. A locating hole of the connecting parent part is internally provided with a locating cambered surface and an eccentric cambered surface so as to facilitate the drilling bit to be assembled, rapidly centered and fastened. The connecting parent part and the chamfering sleeve are provided with locating recesses and locating bosses so as to ensure the concentricity of the connecting parent part and the chamfering sleeve, wherein the locating recesses and the locating bosses are mutually matched. The inner diameter of the chamfering sleeve is slightly smaller than the outer diameter of a diamond gear ring of the drilling bit so as to ensure the processing quality of a jointing line between the chamfering surface and the hole wall of a drilling hole. The same connecting parent part and the same chamfering sleeve can allow replacing adaptive drilling bits or adjusting the exposed length of the drilling bit so as to adapt to machining materials with different thicknesses. The adjustable diamond chamfering drilling bit is suitable for high-speed and high-accuracy machining of crisp and hard nonmetal materials which have strict requirements for stress concentration ratio.
Description
(1) technical field
The present invention relates to drilling tool, be specially a kind of adjustable diamond chmfer bit.
(2) background technology
Crisp hard nonmetallic materials are finished boring and chamfering, need to adopt diamond bit.General purpose tool is for there being three kinds at present: 1., and common diamond bit, 2., separate assembling diamond chmfer bit, 3., monoblock type diamond chmfer bit.
1., common diamond bit
The chamfering again of need holing earlier, two procedures just can be finished.Under the situation of accurately locating, the position crudy at fillet surface, fillet surface and hole wall handing-over line place is good.But must change different cutters and contraposition once more, often cause off-centre because of the center contraposition is inaccurate, have only skilled skilled worker to proofread and correct accurately and test after just can finish, not only waste test article, more the increase because of operation influences work efficiency.
2., separate assembling diamond chmfer bit
The chamfering cover is assembled on the drill bit, and boring and chamfering can once be finished.
But present separate assembling chmfer bit, because the exposure of drill bit outer wall diamond has influenced surface roughness (Ra numerical value is bigger), assembling and adjusting for the ease of drill bit and chamfering cover, necessary given bigger gap value between its drill bit and the chamfering cover, otherwise, in the operating process, drill bit and chamfering cover are difficult to assembling and regulate.
According to process principle, same chamfering is overlapped the processing capacity born at each position and is reduced greatly on the contrary with the change of diameter.The position correspondence of the fit clearance of chamfering cover and drill bit be the position of the handing-over line of the chamfering inclined-plane of work piece and hole wall, but work piece herein not by the cutting edge roundness normal process, but ground by impact, extruding, break flour, so limit, chipping, burn very easily occur collapsing.For example during processed glass, the path (front end) very thin (sharply) of chamfering cover, but bear maximum processing capacity, especially under the situation that the gap exists, concentricity is difficult to guarantee, obtuse angle or platform or circular-arc are are very easily worn and torn in this position of chamfering cover, make work piece the step of chipping state very easily occur having in the position of correspondence, cause the shape of product misconduct.The chipping defective forms stress at this place and concentrates, and makes the easy stress of work piece such as glass and explosion.
In addition, the chmfer bit of existing separate assembling after its drill bit working lining consumption to a certain degree, need be adjusted the size matching relationship of a drill bit and chamfering cover according to processing request, and could continue to use after ressembling the chamfering cover.In the assembling process, because need to guarantee the axiality of chamfering cover and drill bit, but be subjected to the influence in the two gap, often need in assembling, carry out artificial adjustment repeatedly, therefore the operating personnel that require dismounting to bore the chamfering cover have higher technical merit, often time and effort consuming is difficult to satisfy higher assembly precision also.
3., monoblock type diamond chmfer bit
Chamfered part and drill bit are whole, and boring and chamfering can once be finished, and can guarantee crudy.
Because be all-in-one-piece, the length of drill bit working position can not be regulated, and must select the length of drill bit working position according to the actual needs of work piece.In use, at first get out the hole of certain depth, afterwards, take advantage of a situation and again chamfering is carried out in the hole according to processing request.Because chamfering " cover " and drill bit are solidified as a whole, and do not have the error of assembly precision, meet the requirements at drill bit and chamfered part size coupling, when cooling water can put in place, as if employing to the brill mode, an end ideal processing effect of subdrilling so.
This all-in-one-piece chmfer bit is because the processing capacity of the processing capacity of bit part and chamfered part is inconsistent, just cause the consumption of drill bit and chamfered part inconsistent, just cause the dimensional requirement mismatch of boring and chamfering cover easily, thereby the monoblock type chmfer bit can't be re-used.This monoblock type chmfer bit is normal only because the consumption at drill bit position has to scrap entire tool, has caused waste.
Separate assembling diamond chmfer bit and monoblock type diamond chmfer bit also exist cooling water and can not omnidistancely arrive the problem of processing working face in addition.
Materials such as photovoltaic glass, vehicle glass, safety glass are concentrated under the index request condition with higher at stress, usually take two ends that brill and additional chamfering are reduced stress influence, allow two ends to the interface that bores away from end face, be in the suitable position between the machined material thickness direction two ends, cause the machined material end face to collapse the problem of limit, chipping to solve boring processing in the moment that drills, evade stress and concentrate the drawback of being brought.
Apply cooling water and mainly be grinding heat and chip removal in order to reduce machining area.Cooling water will have suitable pressure, and promptly hydraulic pressure will be enough to chip removal but can not be excessive.Guarantee that machined material strengthens in drilling depth, wait to bore the continuous attenuate of thickness at position, when intensity constantly reduces, can not caused machined material to collapse the limit or break towards quick-fried by the band setting-out.One end cooling water action path of subdrilling is during to brill: the gap → discharge of the gap of the gap of drill bit endoporus → drill bit inwall and machined material core → drill bit working face → drill bit outer wall and machined material hole wall → chamfering cover working face+drill bit outer wall and chamfering cover inwall.
For the separate assembling chmfer bit, when drill bit outer wall and chamfering cover inwall gap were big, cooling water leaked the pressure that makes cooling water thus and descends, and may cause the hydraulic pressure deficiency that enters chamfering cover working face, causes the chip removal ability to descend significantly.
The end that bore the back, when machined material did not drill, suitably an end situation of the cooling water action path of pressure and subdrilling was identical.
In the moment that machined material is drilled, cooling water flows out along the hole pressure release that drills at once, and the action path of cooling water becomes: hole → pressure release of drill bit endoporus → drill is flowed out.But the processing of chamfer site is not this moment finished as yet because of lagging behind, and cooling water is difficult to arrive chamfering cover working face because of decompression, chamfer site is under the situation that loses cooling water or bad cooling, chamfer site machined material break flour is difficult to smooth and easy discharge, grinding heat rises suddenly, thereby causes chamfer site surface to be machined roughness to descend (raising of Ra numerical value), limit, chipping, burn, stress problem occur collapsing, in High-speed machining or fillet surface broad, show particularly outstanding.So the end situation that bore the back is generally desirable not to the utmost.
Existing in a word diamond chmfer bit all is difficult to efficiently, finishes in high quality the boring and the chamfering of crisp hard nonmetallic materials.
(3) summary of the invention
The objective of the invention is to design a kind of adjustable diamond chmfer bit, comprise connecting parent part, chamfering cover, drill bit, have the two-way cooling-water duct, make cooling water be applied to working face in the overall process of processing.
The adjustable diamond chmfer bit of the present invention's design comprises drill bit, chamfering cover, and drill bit has coaxial bit sub and bit matrix, and the bit matrix end of hollow connects coaxial diamond ring gear.The chamfering cover is the annular cover, and an end is annular diamond working position.This chmfer bit connects parent part in addition.
Connect the joint of parent part one end for matching with the syndeton of drilling machine.Connect the link of the other end of parent part for connection chamfering cover and drill bit, the location concave station that the end face setting of link is connected with the chamfering cover and an anti-rotation pin, the outer wall of link has the external screw thread that cooperates with nut.
The positioning boss of the other end setting relative of chamfering cover and the location concave station high accuracy cooperation that is connected parent part with the diamond working position, guarantee chamfering cover and be connected parent part and have the high-precision coaxial degree, on positioning boss rear chamfering cover main body, also have diameter less than at the bottom of connecting the parent part outer wall thread directly, greater than the bulge loop of positioning boss external diameter.The bulge loop end face is provided with a pin-and-hole that matches with the anti-rotation pin that is connected parent part.Nut one end have diameter greater than chamfering overlap main diameter, less than the ring cowling of chamfering cover bulge loop diameter.Chamfering is sleeved on and connects on the parent part, the anti-rotation pin that connects parent part inserts the pin-and-hole of chamfering cover, the fastening chamfering of nut is overlapped and is connected parent part, its ring cowling is pressed on the chamfering cover bulge loop, the bulge loop end face of chamfering cover is close to the link end face that connects parent part, and the two is affixed by nut compressing with being connected parent part for the chamfering cover.
The centre bore that connects parent part is a through hole, and its joint one end is connected with the rig coolant outlet, and the centre bore of link is the locating hole of drill bit.Locating hole and drill handle part diameter, length high accuracy cooperate, and guarantee drill bit and be connected parent part and have the high-precision coaxial degree.1 or 2 fastening screw is arranged on the hole wall.Drill bit inserts the back trip bolt through the quick fixed drill bit of fastening screw.
Assemble drill bit for convenience, the locating hole hole wall has greater than the locating hole quarter turn and less than the location cambered surface of 1/2 circumference, diameter and bit sub equal diameters, its axial length of location cambered surface are 10mm～35mm, remaining locating hole hole wall cambered surface is off-centre and the diameter eccentric cambered surface greater than location cambered surface diameter, and the offset of eccentric cambered surface is that 0.2mm～1mm, diameter are greater than location cambered surface diameter 0.2mm～1mm.Seamlessly transit between location cambered surface and the eccentric cambered surface.The location cambered surface plays the effect of " locating piece ".Drill bit can " without hindrance " insert, and drill handle part and location cambered surface fit tightly, and have guaranteed drill bit and have been connected parent part high-precision coaxial degree.Fastening screw is positioned on the eccentric cambered surface, cambered surface is relative with locating.
Drill bit is divided into coaxial bit sub and bit matrix, and the bit matrix end of hollow connects coaxial diamond ring gear.The gap that 0.1mm～1mm is arranged between bit matrix outer wall and the chamfering cover inner hole wall.The external diameter of bit matrix is less than chamfering cover internal diameter 0.2mm～2mm, and the external diameter of diamond ring gear is greater than the external diameter 0.3mm～2.1mm of bit matrix, and the external diameter of diamond ring gear is greater than chamfering cover internal diameter 0.1mm-1mm.
The concave station bottom surface, location that connects parent part is with annular groove outside centre bore, have the side direction apopore to communicate with annular groove in the centre bore.The bit sub center has the inlet opening to communicate with the bit matrix cavity, and perhaps the shoulder that is connected with bit matrix of bit sub has the inlet opening to communicate with the bit matrix cavity.On the diamond working position of chamfering cover some limbers are arranged, be connected with the endoporus of chamfering cover.
Pin was relative on chamfering was overlapped pin-and-hole and is connected parent part, and positioning boss embeds the location concave station, screws nut, and the chamfering cover finishes with the assembling that is connected parent part.The bit sub of drill bit pass chamfering cover mesopore, pasting the centre bore that the location cambered surface that connects parent part is inserted the connection parent part, screw trip bolt, trip bolt makes bit sub be close to the location cambered surface, and drill bit installs, the joint that connects parent part is connected the chamfering of can holing operation with rig.
This chmfer bit cooling water has two paths: main road and and bypass.
This chmfer bit in the processing of subdrilling one end omnidistance and back bore an end machined material by the process before drilling in cooling water cool off and chip removal through main road.Main road is: the gap of the side direction apopore of rig cooling water → connection parent part centre bore → connection parent part and annular groove → drill bit inlet opening → bit matrix cavity inner wall → drill bit diamond ring gear working face → drill bit diamond ring gear outer wall and machined material hole wall → chamfering cover diamond working face → discharge.
Chmfer bit machined material by the process after drilling in cooling water through bypass chamfering cover diamond working face is cooled off and chip removal.Bypass is: the limber of the gap between the side direction apopore of rig cooling water → connection parent part centre bore → connection parent part and annular groove → chamfering cover main body inner wall and the bit matrix → chamfering cover diamond working position → chamfering cover diamond working face → discharge.
For making bypass more unobstructed, the endoporus hole wall of chamfering cover also has 1～6 axial water-flowing trough.Enter the gap between chamfering cover main body inner wall and the bit matrix and the cooling water of water-flowing trough, under the effect of rotary centrifugal force, in time be applied on the chamfering working face through limber.
The circulation area of restriction drill bit inlet opening can increase the cooling water pressure of branch to chamfering cover path, guarantees after drill bit drills the material pressure release, and cooling water still has → level pressure power arrival chamfering cover working face.
The advantage of the adjustable diamond chmfer bit of the present invention is: 1, leave suitable gap between the inwall of chamfering cover and the bit matrix outer wall, major-minor two-way cooling-water duct is arranged, guarantee that processing overall process cooling water arrives working face, an end crudy basically identical is bored in subdrilling one end and back during to brill; 2, because the internal diameter of chamfering cover is slightly less than the external diameter of drill bit diamond ring gear, the diamond working position of the chamfering cover after the drill bit processing can comprehensive engagement need machined surface, do not stay omission, guarantee that fillet surface and borehole wall handing-over line place crudy is good, can meet or exceed the crudy level of monoblock type chmfer bit, solved the problem that fillet surface that combined type diamond chmfer bit causes because of the fit-up gap and hole wall handing-over line place collapse limit, chipping, burn, boring and chamfering are finished in perfection; 3, same connection parent part and chamfering cover can be adjusted adaptive drill bit, when rapidoprint is thin, select the short drill bit of length of diamond ring gear; When material processed during thicker or bit wear, the exposure length of regulating drill bit still can be overlapped adaptively with chamfering, is reassembled into the chmfer bit that meets processing request; 4, connect parent part and drill bit, the centering, fastening fast, easy to connect fast of chamfering cover, dismounting is simple, saves time, and reduces the requirement to operating personnel; 5, behind drill bit or chamfering cover wear out failure, more bit change that can be independent or chamfering cover, instrument makes full use of, and reduces cost; 6, connecting parent part, drill bit, chamfering, to overlap three modular constructions simple, processes cheaply, and has interchangeability, reduced the cost of chmfer bit.
(4) description of drawings
Fig. 1 is the overall structure schematic diagram of this adjustable diamond chmfer bit embodiment;
Fig. 2 is that the A-A of Fig. 1 is to view;
Fig. 3 is the cross sectional representation at Fig. 1 chamfering cover locating hole place;
Fig. 4 is the structural representation of the chamfering cover of this adjustable diamond chmfer bit embodiment;
Fig. 5 is the vertical view of Fig. 4;
Fig. 6 is the structural representation of the drill bit of this adjustable diamond chmfer bit embodiment;
Fig. 7 is the vertical view of Fig. 6.
The figure internal label is: 1, connect parent part, 11, annular groove, 12, trip bolt, 13, the anti-rotation pin, 14, location concave station, 15, the location cambered surface, 16, the side direction apopore, 17, joint, 18, centre bore, 2, the chamfering cover, 21, the diamond working position, 22, limber, 23, pin hole, 24, positioning boss, 25, bulge loop, 26, axial water-flowing trough, 3, drill bit, 31, bit sub, 32, inlet opening, 33, bit matrix, 34, the diamond ring gear.
(5) specific embodiment
This adjustable diamond chmfer bit embodiment overall structure comprises connecting parent part 1, drill bit 3 and chamfering cover 2 as shown in Figure 1, 2.
Connect the joint 17 of parent part 1 one ends for matching with the syndeton of rig, joint 17 is provided with the structure that is connected hi-Fix and tightens up with rig.The other end that connects parent part 1 is for connecting the link of chamfering cover 2 and drill bit 3.The centre bore 1 that connects parent part 1 is a through hole, and its joint 17 1 ends are connected with the rig coolant outlet, and the centre bore of link is the locating hole of drill bit 3.The diameter of locating hole and bit sub 31, length high accuracy cooperate, and guarantee drill bit 3 and be connected parent part 1 and have the high-precision coaxial degree.As shown in Figure 3, the locating hole hole wall has the location cambered surface 15 of 1/3 circumference, the diameter 2r and bit sub 31 equal diameters of location cambered surface 15, and the axial length of location cambered surface 15 is 20mm; Remaining locating hole hole wall cambered surface seamlessly transits between location cambered surface 15 and the eccentric cambered surface for offset d is 0.3mm, the diameter 2R eccentric cambered surface greater than location cambered surface diameter 0.5mm.Bit sub 31 and location cambered surface 15 fit tightly, and have guaranteed drill bit 3 and have been connected parent part 1 high-precision coaxial degree.On the hole wall of eccentric cambered surface fastening screw is arranged.Drill bit 3 inserts back trip bolt 12 through the quick fixed drill bit handle 31 of fastening screw.The end face setting of link and the chamfering cover 2 location concave stations 14 that are connected, there is an anti-rotation pin 13 in concave station 14 outsides, location, and the link outer wall that connects parent part 1 has the external screw thread that cooperates with nut 4.Location concave station 14 bottom surfaces that connect parent part 1 are with annular groove 11 outside centre bore 18, have side direction apopore 16 to communicate with annular groove 11 in the centre bore 18.
As Fig. 4, shown in Figure 5, chamfering cover 2 is the annular cover, and an end is annular diamond working position 21, its internal diameter 49.8mm, its main body external diameter 52mm.The endoporus hole wall of chamfering cover also has 4 axial water-flowing troughs 26.The end that chamfering is overlapped 2 diamond working positions 21 has limber 22 to be connected with the endoporus of chamfering cover 2.Limber 22 overlaps the spiral relay vertically of 2 ends from chamfering and distributes, and helps cooling water under action of centrifugal force, is applied to the working face of chamfering cover 2 by limber 22 from the endoporus hole wall of chamfering cover 2.
The positioning boss 24 that the relative other end setting in chamfering cover 2 and diamond working position 21 and location concave station 14 high accuracy that are connected parent part 1 cooperate, positioning boss 24 rear chamferings overlap on 2 main bodys diameter in addition less than connection parent part 1 outer wall thread at the bottom of directly, greater than the bulge loop 25 of positioning boss 24 external diameters.Bulge loop 25 end faces are provided with a pin-and-hole 23 that matches with the anti-rotation pin 13 that is connected parent part 1.
Nut 4 one ends have diameter to overlap 2 main body external diameters, overlap the ring cowling of 2 bulge loops, 25 external diameters less than chamfering greater than chamfering.Chamfering cover 2 is contained in and connects on the parent part 1, positioning boss 24 embeds location concave station 14, guarantee chamfering cover and the axiality that is connected parent part, anti-rotation pin 13 inserts pin-and-hole 23, the fastening chamferings cover 2 of nut 4 be connected parent part 1, its ring cowling overwhelms the bulge loop 25 of angle cover 2, and the two compresses affixed with being connected parent part 1 with chamfering cover 2.
As Fig. 6, shown in Figure 7, drill bit 3 has coaxial bit sub 31 and bit matrix 33, and bit matrix 33 ends of hollow connect coaxial diamond ring gear 34 diameter 50mm.Bit sub 31 diameter 10mm, the thick 0.8mm of diamond tooth ring wall, bit matrix 33 external diameter 49.2mm overlap 2 internal diameter 0.6mm less than chamfering.The shoulder that bit sub 31 is connected with bit matrix 33 has inlet opening 32 to communicate with the cavity of bit matrix 33.The external diameter of bit matrix 33 is 49.2mm, gapped 0.3mm between bit matrix outer wall and the chamfering cover inner hole wall.The external diameter of diamond ring gear 34 is greater than chamfering cover internal diameter 0.2mm.
Adopt the glass of this routine diamond chmfer bit processing thickness 3.2mm, chamfering width 0.5mm.Employing is to the brill mode, and boundary 0.4mm can learn that as calculated drill bit 3 active lengths need 1.2mm, punching degree of depth 1.8mm.
Arrow W represents water (flow) direction among Fig. 1, this chmfer bit in the processing of subdrilling one end omnidistance and back bore an end machined material by the process before drilling in cooling water cool off and chip removal through main road.Main road is: the gap → chamfering of the side direction apopore 16 of rig cooling water → connection parent part 1 centre bore → connection parent part 1 and annular groove 11 → drill bit inlet opening 32 → bit matrix, 33 cavity inner walls → drill bit 3 diamond ring gears 34 working faces → drill bit 3 diamond ring gears, 34 outer walls and machined material hole wall is overlapped 2 diamonds working face → discharge.
Chmfer bit machined material by the process after drilling in cooling water through bypass chamfering cover diamond working face is cooled off and chip removal.Bypass is: the side direction apopore 16 of rig cooling water → connection parent part 1 centre bore → connection parent part 1 and annular groove 11 → chamfering are overlapped 2 main body inner wall, axially the limber 22 → chamfering of overlapping 2 diamond working positions of the gap → chamfering between water-flowing trough 26 and the bit matrix 33 is overlapped 2 diamonds working face → discharge.
The foregoing description is the specific case that purpose of the present invention, technical scheme and beneficial effect are further described only, and the present invention is defined in this.All any modifications of within scope of disclosure of the present invention, being made, be equal to replacement, improvement etc., all be included within protection scope of the present invention.
Claims (7)
1. adjustable diamond chmfer bit comprises drill bit (3) and chamfering cover (2); Drill bit (3) has coaxial bit sub (31) and bit matrix (33), and the bit matrix of hollow (33) end connects coaxial diamond ring gear (34); Chamfering cover (2) is the annular cover, and an end is annular diamond working position (21); It is characterized in that:
Connect parent part (1) in addition, connect the joint (17) of parent part (1) one end for matching with the syndeton of rig, joint (17) is provided with the structure that is connected hi-Fix and tightens up with rig; The other end that connects parent part (1) is for connecting the link of chamfering cover (2) and drill bit (3); The centre bore (18) that connects parent part (1) is a through hole, its joint (17) one ends are connected with the rig coolant outlet, the centre bore of link (18) is the locating hole of drill bit (3), and the diameter of locating hole and bit sub (31), length high accuracy cooperate, and 1 or 2 fastening screw is arranged on the hole wall; The location concave station (14) that the end face setting of link is connected with chamfering cover (2), there is an anti-rotation pin (13) in location concave station (14) outside, the link outer wall that connects parent part (1) has and nut (4 external screw threads that cooperate, location concave station (14) bottom surface that connects parent part (1) is with annular groove (11) outside centre bore (18), have side direction apopore (16) to communicate with annular groove (11) in the centre bore (18);
The positioning boss (24) that chamfering cover (2) other end setting relative with diamond working position (21) and location concave station (14) high accuracy that is connected parent part (1) cooperate, on positioning boss (24) rear chamfering cover (2) main body, also have bulge loop (25), bulge loop (25) diameter less than connect footpath at the bottom of parent part (1) outer wall thread, greater than positioning boss (24) external diameter; Bulge loop (25) end face is provided with a pin-and-hole (23) that matches with the anti-rotation pin (13) that is connected parent part (1); The end of chamfering cover (2) diamond working position (21) has limber (22) to be connected with the endoporus of chamfering cover (2);
Nut (4) one ends have diameter greater than chamfering cover (2) main body external diameter, less than the ring cowling of chamfering cover (2) bulge loop (25) external diameter;
Bit sub (31) has mesopore to communicate with the cavity of bit matrix (33), and perhaps the shoulder that is connected with bit matrix (33) of bit sub (31) has inlet opening (32) to communicate with the cavity of bit matrix (33); The external diameter of bit matrix (33) is less than chamfering cover (2) internal diameter 0.2mm～2mm;
Chamfering cover (2) pin-and-hole (23) be connected parent part (1) go up pin (13) relatively, anti-rotation pin (13) inserts pin-and-hole (23), positioning boss (24) embeds location concave station (14), the fastening chamfering cover of nut (4) (2) be connected parent part (1); The bit sub (31) of drill bit (3) passes the mesopore of chamfering cover (2), the centre bore (18) that insertion connects parent part (1), and trip bolt (12) is through fastening screw fixed drill bit (2).
2. adjustable diamond chmfer bit according to claim 1 is characterized in that:
The locating hole hole wall of described connection parent part (1) has greater than the locating hole quarter turn and less than the location cambered surface (15) of 1/2 circumference, the diameter and bit sub (31) equal diameters of location cambered surface (15), remaining locating hole hole wall cambered surface is off-centre and the diameter eccentric cambered surface greater than location cambered surface (15) diameter, bit sub (31) and location cambered surface (15) fit tightly, and fastening screw is positioned at eccentric cambered surface, relative with location cambered surface (15).
3. adjustable diamond chmfer bit according to claim 2 is characterized in that:
The axial length of the location cambered surface (15) of described connection parent part (1) is 10mm～35mm.
4. adjustable diamond chmfer bit according to claim 2 is characterized in that:
The offset of the eccentric cambered surface of described connection parent part (1) is that 0.2mm～1mm, diameter are greater than location cambered surface (15) diameter 0.2mm～1mm.
5. adjustable diamond chmfer bit according to claim 1 is characterized in that:
The external diameter of described diamond ring gear (34) is greater than the external diameter 0.3mm～2.1mm of bit matrix (33), and the external diameter of diamond ring gear (34) is greater than chamfering cover (2) internal diameter 0.1mm～1mm.
6. adjustable diamond chmfer bit according to claim 1 is characterized in that:
The endoporus hole wall of described chamfering cover (2) also has 1～6 axial water-flowing trough (26).
7. adjustable diamond chmfer bit according to claim 1 is characterized in that:
The limber (22) of described chamfering cover (2) distributes from the spiral relay vertically of chamfering cover (2) end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100790707A CN102189608B (en) | 2011-03-30 | 2011-03-30 | Adjustable diamond chamfering drilling bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100790707A CN102189608B (en) | 2011-03-30 | 2011-03-30 | Adjustable diamond chamfering drilling bit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102189608A true CN102189608A (en) | 2011-09-21 |
| CN102189608B CN102189608B (en) | 2012-03-28 |
Family
ID=44598901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100790707A Active CN102189608B (en) | 2011-03-30 | 2011-03-30 | Adjustable diamond chamfering drilling bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102189608B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107097357A (en) * | 2017-05-15 | 2017-08-29 | 海安国洋机械科技有限公司 | A kind of circular arc handle safety glass target drill |
| CN110919555A (en) * | 2019-12-19 | 2020-03-27 | 宋京新 | External-rotation internal-cooling interchangeable electroplated cup type grinding wheel |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU856821A1 (en) * | 1979-04-06 | 1981-08-25 | Всесоюзный Научно-Исследовательский Институт Нерудных Строительных Материалов И Гидромеханизации (Вниинеруд) | Diamond tool for ring drilling |
| DE4012067A1 (en) * | 1990-04-14 | 1991-10-17 | Link Johann & Ernst Gmbh & Co | Combined drill and chamfering tool - has chamfering bit secured by screw passing through hole with inclined chamfer to give wedging action |
| CN2425758Y (en) * | 2000-02-21 | 2001-04-04 | 杨金海 | External water-filling type diamond bit |
| CN201198044Y (en) * | 2008-05-15 | 2009-02-25 | 桂林创源金刚石有限公司 | Combined type chamfering drill |
| CN202037731U (en) * | 2011-03-30 | 2011-11-16 | 桂林创源金刚石有限公司 | Adjustable diamond chamfering drill bit |
-
2011
- 2011-03-30 CN CN2011100790707A patent/CN102189608B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU856821A1 (en) * | 1979-04-06 | 1981-08-25 | Всесоюзный Научно-Исследовательский Институт Нерудных Строительных Материалов И Гидромеханизации (Вниинеруд) | Diamond tool for ring drilling |
| DE4012067A1 (en) * | 1990-04-14 | 1991-10-17 | Link Johann & Ernst Gmbh & Co | Combined drill and chamfering tool - has chamfering bit secured by screw passing through hole with inclined chamfer to give wedging action |
| CN2425758Y (en) * | 2000-02-21 | 2001-04-04 | 杨金海 | External water-filling type diamond bit |
| CN201198044Y (en) * | 2008-05-15 | 2009-02-25 | 桂林创源金刚石有限公司 | Combined type chamfering drill |
| CN202037731U (en) * | 2011-03-30 | 2011-11-16 | 桂林创源金刚石有限公司 | Adjustable diamond chamfering drill bit |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107097357A (en) * | 2017-05-15 | 2017-08-29 | 海安国洋机械科技有限公司 | A kind of circular arc handle safety glass target drill |
| CN110919555A (en) * | 2019-12-19 | 2020-03-27 | 宋京新 | External-rotation internal-cooling interchangeable electroplated cup type grinding wheel |
| CN110919555B (en) * | 2019-12-19 | 2024-04-16 | 宋京新 | Outer-rotating inner-cooling interchangeable electroplating cup type grinding wheel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102189608B (en) | 2012-03-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8931983B2 (en) | Milling tool assembly having a replaceable cutter | |
| DK2318166T3 (en) | Tool for chip removing machining of a workpiece | |
| KR100674665B1 (en) | Cardiovascular cutting tool | |
| US9238273B2 (en) | Milling tool | |
| US20090120240A1 (en) | Method for manufacturing drill head | |
| EP2070617B2 (en) | A basic body for tools for chip removing machining | |
| CN202037731U (en) | Adjustable diamond chamfering drill bit | |
| CN102189608B (en) | Adjustable diamond chamfering drilling bit | |
| CN102494154B (en) | Method for manufacturing spherical valve with 40-degree inclined halving structure | |
| KR20170135513A (en) | A Machine Tools Having a Structure of Providing a Cutting Fluid through a Inner Path | |
| CN105689766A (en) | Combined drill molding milling cutter and manufacturing method thereof | |
| CN215698258U (en) | Drill chamfering device | |
| JP4057936B2 (en) | Deep hole cutting tool | |
| RU2098236C1 (en) | Guiding sleeve | |
| CN205587729U (en) | Compound machining device spare that bores profile milling cutter | |
| US4573381A (en) | Boring device | |
| KR101946199B1 (en) | A Machine Tools Having a Structure of Providing a Cutting Fluid through a Inner Path | |
| CN219130801U (en) | PCD composite boring cutter | |
| CN220161369U (en) | Cemented carbide side milling cutter | |
| CN218983291U (en) | Combined cutter for machining | |
| CN217317529U (en) | Honing machine head oil feeding system | |
| JP2004283970A (en) | Deep hole cutting tool | |
| JP4047703B2 (en) | Deep hole cutting tool | |
| CN107199365A (en) | A kind of lathe fills the design method of device for cooling in nose angle degree accessories mill-head manually | |
| JP4201627B2 (en) | Deep hole cutting tool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |