CN104001972A - Self-cooling technology for machining twist drill with spiral composite edge and machining method thereof - Google Patents
Self-cooling technology for machining twist drill with spiral composite edge and machining method thereof Download PDFInfo
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- CN104001972A CN104001972A CN201310611952.2A CN201310611952A CN104001972A CN 104001972 A CN104001972 A CN 104001972A CN 201310611952 A CN201310611952 A CN 201310611952A CN 104001972 A CN104001972 A CN 104001972A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/06—Drills with lubricating or cooling equipment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/02—Twist drills
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Abstract
The invention provides a self-cooling technology for a machining twist drill with a spiral composite edge and a machining method thereof, and mainly relate to a machining twist drill with a spiral composite edge. The self-cooling technology is characterized in that a spiral pair cutting edge is arranged on each spiral bar; a spiral pair cutting surface is formed along the outer side of the spiral pair cutting edge; a spiral cutting surface is formed on the front portion of the inner side of the spiral pair cutting edge; the surface of the top of the front end of the spiral cutting surface is a rear cutting surface; the spiral cutting surface is intersected with the rear cutting surface to form a cutting edge; the cutting edge is an inclined edge or an arc-shaped edge; a concave opening edge or a square opening edge or a trapezoidal edge is arranged on the inclined edge or the arc-shaped edge; the surface at the side opposite to the spiral cutting surface in the rotation direction of a tool is a rear spiral surface; at least one spiral groove is formed in the rear spiral surface; or spiral tables are opened at the both sides of the groove, or a cooling tube is integrally arranged in the spiral groove, or spiral surfaces are integrally arranged or welded and sealed on the spiral tables; a hole communicated with the spiral groove or a water tube is formed in the spiral groove or the handle portion of the tool at the top end of a cooling tube; a connector is formed in the top end of the handle portion or a handle.
Description
Technical field:
The present invention relates to a kind of machine add the compound sword fluted drill of spiral from falling temperature technique and processing method thereof, this machine add the compound sword fluted drill of spiral from falling temperature technique and processing method thereof for drilling machine processing and pincers worker maintenance.
Background technology:
At present, the fluted drill using in machining is by chisel edge, cutting edge, screw pair cutting edge, side edge forms, and cutting edge and screw pair cutting edge are roughly single structure, and adjective-centre structure is poor, the part of protruding to helicoid outside, very easily fracture, these fluted drill utmost points are not durable, especially when boring the higher workpiece of milling hardness, produce a large amount of heat, the lower hardness that causes cutter head, causes the wearing and tearing of cutter head, and falling temperature technique just becomes the bottleneck that cutter uses, ordinary skill is difficult to cooling fluid to be directly injected into cutting place, does not reach desirable cooling-down effect.
Summary of the invention:
The present invention is exactly in view of the above-mentioned problems and proposes, and take that what provide that a kind of machine adds the compound sword fluted drill of spiral is object from falling temperature technique and processing method thereof, and this kind of cutter radiating efficiency is high, and intensity is large, and the life-span is long, and adds and easily locate man-hour in drilling.
For achieving the above object, the present invention adopts following technical proposals:
A kind of machine add the compound sword fluted drill of spiral from falling temperature technique and processing method thereof, the machine of relating generally to adds the compound sword fluted drill of spiral, in each spiral bar, there is a screw pair cutting edge, outside along this screw pair cutting edge is formed with screw pair cutting face, the front portion towards cutting direction of screw pair cutting edge is formed with spiral cutting face, face in the spiral cutting face front top of cutterhead axial centre front end spiral bar is rear cutting face, spiral cutting face intersects and is formed with cutting edge with rear cutting face, it is characterized in that: Yu Hou cutting face, rear cutting face is intersected and is formed with chisel edge at axial centre front end, or the spiral cutting face place chamfering of chisel edge and direction of rotation front end is formed with fillet surface, centering minute cutting blade and the chisel edge reducing, or the spiral cutting face place chamfering of chisel edge and direction of rotation front end is formed with fillet surface, the sharp sword of centering minute cutting blade and the nonreactive heart, on spiral cutting face, stepped projection is formed with at least one-level composite screw cutting face, form at least spiral cutting sword and the composite screw cutting edge of one-level arranged in step shape, the secondary cutting face of screw pair cutting face and composite screw, spiral cutting face or Yu Hou cutting face, composite screw cutting face intersect that to be formed with stair-stepping cutting edge be ladder sword, on the spiral cutting face towards direction of rotation, spiral triangular groove shape or spiral dovetail groove shape, or spiral arc triangular groove shape or spiral arc dovetail groove shape depression be provided with one-level bottom at least or sidepiece, be formed with spiral cutting face or composite screw cutting face the bevel of cutting sth. askew in the spiral of angle, or the bevel of cutting sth. askew in spiral arc, or the bevel of cutting sth. askew in composite screw, or the bevel of cutting sth. askew in composite screw arc, or composite screw cutting face, or platform is decomposed in the compound location of arc composite screw cutting face and inner bulge, the bevel of cutting sth. askew in spiral, cut sth. askew in spiral arc bevel and rear cutting face intersected and to be formed with interior oblique sword, compound location decomposes that platform and rear cutting face are crossing is formed with compound side edge, on spiral cutting face, be provided with at least one helical groove, the face of the rear side that spiral cutting face is corresponding in panel beating composite screw sword fluted drill direction of rotation is rear screw face, at least one spiral cooling bath is set on rear screw face, or helical stand is outputed in the both sides of cooling bath, or at spiral cooling bath, or at least one cooling tube is set in cooling bath integratedly, or at spiral cooling bath, or on cooling bath, arrange integratedly or the helicoid of seam sealing, spiral cooling bath, or the top tool shank of cooling bath or cooling tube is provided with and spiral cooling bath, or the Cooling Holes that communicates of cooling bath or cooling tube, on the top of shank or handle, be provided with the connector communicating with outside.
A kind of machine add the compound sword fluted drill of spiral from falling temperature technique and processing method thereof, the machine of relating generally to adds the compound sword fluted drill of spiral, in each spiral bar, there is a screw pair cutting edge, outside along this screw pair cutting edge is formed with screw pair cutting face, the front portion towards cutting direction of screw pair cutting edge is formed with spiral cutting face, face in the spiral cutting face front top of cutterhead axial centre front end spiral bar is rear cutting face, spiral cutting face intersects and is formed with cutting edge with rear cutting face, it is characterized in that: Yu Hou cutting face, rear cutting face is intersected and is formed with chisel edge at axial centre front end, or the spiral cutting face place chamfering of chisel edge and direction of rotation front end is formed with fillet surface, centering minute cutting blade and the chisel edge reducing, or the spiral cutting face place chamfering of chisel edge and direction of rotation front end is formed with fillet surface, the sharp sword of centering minute cutting blade and the nonreactive heart, the crossing angle that is 90 ° that is formed with in Yu Hou cutting face, screw pair cutting face, spiral cutting face intersects and is formed with cutting edge with rear cutting face, and this cutting edge is arranged to arcuate blade or oblique sword, or is provided with at least one recess sword on arcuate blade or oblique sword, or square opening sword, or stairstepping sword, on spiral cutting face, stepped projection is formed with at least one-level composite screw cutting face, form at least spiral cutting sword and the composite screw cutting edge of one-level arranged in step shape, the secondary cutting face of screw pair cutting face and composite screw, spiral cutting face or Yu Hou cutting face, composite screw cutting face intersect that to be formed with stair-stepping cutting edge be ladder sword, on the spiral cutting face towards direction of rotation, spiral triangular groove shape or spiral dovetail groove shape, or spiral arc triangular groove shape or spiral arc dovetail groove shape depression be provided with one-level bottom at least or sidepiece, be formed with spiral cutting face or composite screw cutting face the bevel of cutting sth. askew in the spiral of angle, or the bevel of cutting sth. askew in spiral arc, or the bevel of cutting sth. askew in composite screw, or the bevel of cutting sth. askew in composite screw arc, or composite screw cutting face, or platform is decomposed in the compound location of arc composite screw cutting face and inner bulge, the bevel of cutting sth. askew in spiral, cut sth. askew in spiral arc bevel and rear cutting face intersected and to be formed with interior oblique sword, compound location decomposes that platform and rear cutting face are crossing is formed with compound side edge, on spiral cutting face, be provided with at least one helical groove, the face of the rear side that spiral cutting face is corresponding in panel beating composite screw sword fluted drill direction of rotation is rear screw face, at least one spiral cooling bath is set on rear screw face, or helical stand is outputed in the both sides of cooling bath, or at spiral cooling bath, or at least one cooling tube is set in cooling bath integratedly, or at spiral cooling bath, or the helicoid of sealing is set on cooling bath integratedly, spiral cooling bath, or the top tool shank of cooling bath or cooling tube is provided with and spiral cooling bath, or the Cooling Holes that communicates of cooling bath or cooling tube, on the top of shank or handle, be provided with the connector communicating with outside.
A kind of machine add the compound sword fluted drill of spiral from falling temperature technique and processing method thereof, the machine of relating generally to adds the compound sword fluted drill of spiral, in each spiral bar, there is a screw pair cutting edge, outside along this screw pair cutting edge is formed with screw pair cutting face, the front portion towards cutting direction of screw pair cutting edge is formed with spiral cutting face, face in the spiral cutting face front top of cutterhead axial centre front end spiral bar is rear cutting face, spiral cutting face intersects and is formed with cutting edge with rear cutting face, it is characterized in that: Yu Hou cutting face, rear cutting face is intersected and is formed with chisel edge at axial centre front end, or the spiral cutting face place chamfering of chisel edge and direction of rotation front end is formed with fillet surface, centering minute cutting blade and the chisel edge reducing, or the spiral cutting face place chamfering of chisel edge and direction of rotation front end is formed with fillet surface, the sharp sword of centering minute cutting blade and the nonreactive heart, crossing being formed with in Yu Hou cutting face, screw pair cutting face is the angle that is greater than 90 °, spiral cutting face intersects and is formed with cutting edge with rear cutting face, and this cutting edge is arranged to arcuate blade or oblique sword, or is provided with at least one recess sword on arcuate blade or oblique sword, or square opening sword, or stairstepping sword, on spiral cutting face, stepped projection is formed with at least one-level composite screw cutting face, form at least spiral cutting sword and the composite screw cutting edge of one-level arranged in step shape, the secondary cutting face of screw pair cutting face and composite screw, spiral cutting face or Yu Hou cutting face, composite screw cutting face intersect that to be formed with stair-stepping cutting edge be ladder sword, on the spiral cutting face towards direction of rotation, spiral triangular groove shape or spiral dovetail groove shape, or spiral arc triangular groove shape or spiral arc dovetail groove shape depression be provided with one-level bottom at least or sidepiece, be formed with spiral cutting face or composite screw cutting face the bevel of cutting sth. askew in the spiral of angle, or the bevel of cutting sth. askew in spiral arc, or the bevel of cutting sth. askew in composite screw, or the bevel of cutting sth. askew in composite screw arc, or composite screw cutting face, or platform is decomposed in the compound location of arc composite screw cutting face and inner bulge, the bevel of cutting sth. askew in spiral, cut sth. askew in spiral arc bevel and rear cutting face intersected and to be formed with interior oblique sword, compound location decomposes that platform and rear cutting face are crossing is formed with compound side edge, on spiral cutting face, be provided with at least one helical groove, the face of the rear side that spiral cutting face is corresponding in panel beating composite screw sword fluted drill direction of rotation is rear screw face, at least one spiral cooling bath is set on rear screw face, or helical stand is outputed in the both sides of cooling bath, or at spiral cooling bath, or at least one cooling tube is set in cooling bath integratedly, or at spiral cooling bath, or on cooling bath, arrange integratedly or the helicoid of seam sealing, spiral cooling bath, or the top tool shank of cooling bath or cooling tube is provided with and spiral cooling bath, or the Cooling Holes that communicates of cooling bath or cooling tube, on the top of shank or handle, be provided with the connector communicating with outside.
Preferably, on the cutting edge of described cutter, be formed with at least one recess sword, or square opening sword, or trapezoidal sword, or the compound recess sword overlapping on recess sword, or compound square opening sword, or compound trapezoidal sword, and cutting face is extended or is amplified shape and extended to form at least one groove or compound groove backward, or square opening groove or compound square opening groove, or dovetail groove or compound dovetail groove.
Preferably, at described machine, add on the compound sword fluted drill of spiral the outermost side edge direction that sharp sword or chisel edge intersect to Yu Hou cutting face, screw pair cutting face, cutting edge is the arranged in step shape of upper and lower and front and back from the direction of rear cutting face or spiral cutting face, and to be formed with stepped cutting edge be trapezoidal sword and ladder sword.
Preferably, on the spiral cutting face of described stairs of knives shape, being formed with outermost compound setting screw cutting face is spiral heat dissipation face, and the most compound setting screw cutting face of close the axial centre of inner side is spiral decomposition platform.
Preferably, in the spiral bar of described cutter, take step structure, the spiral bar of rear end is larger form before and after the reamer of step structure, or in the spiral bar of rear end, be provided with the fluted drill of the drilling and tapping integrative-structure of screw tap structure.
Preferably, in described Yu Hou cutting face, rear cutting face, at axial centre front end, intersect and be formed with chisel edge; Or the spiral cutting face intersection chamfering of chisel edge and direction of rotation front end is formed with fillet surface, centering minute cutting blade and the chisel edge reducing; Or the spiral cutting face intersection chamfering of chisel edge and direction of rotation front end is formed with fillet surface, the sharp sword of centering minute cutting blade and the nonreactive heart; Or chisel edge, or the sharp sword of the nonreactive heart, cut sword with the centering of both sides and be formed with S sword; Or being formed with at the axial centre front end of fluted drill the apex point that projection arranges, the center of apex point is chisel edge, or the sharp sword of the nonreactive heart, divides cutting blade with the centering of the protruding both sides, apex point center that arrange, center, cutterhead top, is formed with S sword or anti-S sword.Preferably, at described fluted drill, be Integral alloy
Preferably, at the stair-stepping rear cutting face of at least two-stage of described spiral bar and the cutting edge on fillet surface, the sharp edge type of centering minute cutting blade and chisel edge or the nonreactive heart becomes the cutting edge of S shape or anti-S shape, i.e. S sword.
Preferably, at described machine, add on the apex point of each spiral bar from falling temperature technique and processing method thereof of the compound sword fluted drill of spiral, from the position of tool axis the direction of screw pair cutting edge toward the outer side, the stepped at least one-level spiral cutting face that is formed with protrudingly, at least platform is cut in the compound location of one-level spiral, and one-level screw pair cutting edge at least.
Preferably, cutting edge on Huo Hou cutting face, the cutting face of described spiral bar and fillet surface or a centering minute cutting blade arrange at least one recess sword or compound recess sword, and recess sword or compound recess sword are opening cutting face or cutting face are extended or amplified shape and extend groove or the compound groove distributing backward.
Preferably, the recess sword at described helical tooth blade is the multiaspect chamber shapes such as inverted trapezoidal or square or arc.
Preferably, on the rear cutting face of described cutter, be formed with at least one groove and front cutting face or cracking resistance and cut platform or the compound location of spiral and cut platform and intersect and be formed with at least one recess sword, the bottom shape of the bottom shape of groove and recess sword is trapezoidal, triangle or arc or other polyhedron shapes.
Preferably, described machine add the compound sword fluted drill of spiral from falling temperature technique and processing method thereof, cutting face or spiral heat dissipation face or Yu Hou cutting face, front cutting face intersect and form at least one-level and divide cutting blade or a location minute cutting blade.
Preferably, at described machine, add on the protruding cutting edge from falling temperature technique and processing method thereof of the compound sword fluted drill of spiral or apex point, to have location minute cutting blade and extend to form the compound location of spiral to drillstock and cut platform.
Preferably, at described helical tooth blade, it is Integral alloy cutter head, the sharp edge type of the cutting edge of at least both sides of described alloy cutter head and centering minute cutting blade and chisel edge or the nonreactive heart becomes S sword or anti-S sword, the mode that alloy cutter head starts to reduce highly gradually laterally from cutterhead axial centre is formed with one or more levels step, and on rear cutting face or cutting face, to be formed with stair-stepping cutting edge be ladder sword, or recess sword, or compound recess sword.
Preferably, what at described machine, add the compound sword fluted drill of spiral is formed with at least an one-level location minute cutting blade on the apex point of falling temperature technique and processing method thereof, and at least platform and one-level screw pair cutting edge are at least cut in the compound location of one-level spiral.
Preferably, the cutting edge from falling temperature technique and processing method thereof that adds the compound sword fluted drill of spiral at described machine is to be formed with minute cutting blade and little side edge on straight sword or recess sword or inverted trapezoidal sword or triangular edge or square opening sword.
What preferably, at described machine, add the compound sword fluted drill of spiral is acute angle or right angle or obtuse angle from falling temperature technique and processing method outermost thereof and the crossing cutting edge of screw pair cutting edge or the angle of minute cutting blade and screw pair cutting edge.
Preferably, the front portion connection cutter tip that adds the spiral bar from falling temperature technique and processing method thereof of the compound sword fluted drill of spiral at described machine.
Preferably, on the front cutting face of described compound location centering minute cutting blade, be formed with at least centering screw pair sword of one-level combined positioning cutting.
Preferably, on the front cutting face of spiral, be formed with at least screw pair sword of the compound location of one-level combined cut.
Preferably, the outside of the centering screw pair sword from falling temperature technique and processing method thereof that adds the compound sword fluted drill of spiral at described machine is to being formed with groove or plane between side edge.
Beneficial effect:
By triangular groove shape or dovetail groove shape, or arc triangle groove shape or the trapezoidal groove depression of arc be provided with the bottom of one-level at least or sidepiece, with spiral cutting face have be greater than 90 ° be less than 180 ° of angles in the bevel of cutting sth. askew, or the bevel of cutting sth. askew in arc, or the bevel of cutting sth. askew in compound, or the bevel of cutting sth. askew in compound arcuate, be formed with oblique sword in interior oblique sword or arc, or oblique sword in compound interior oblique sword or compound arcuate, stressed inclination to the inside while making to cut, reduce and decomposed the cutting resistance in outside, by the detailed restriction of angle and data, further successfully realized determining of more high-precision numerical value, make the stock-removing efficiency of cutter and reach maximum service life, improved efficiency, reduced cost, saved resource.
Accompanying drawing explanation:
Technical scheme of the present invention and advantage will be described in detail in conjunction with the drawings, in this accompanying drawing:
Fig. 1 is the schematic diagram from falling temperature technique and processing method thereof that the machine of the first embodiment of the present invention adds the compound sword fluted drill of spiral.
Fig. 2 is the schematic diagram from falling temperature technique and processing method thereof that the machine of the second embodiment of the present invention adds the compound sword fluted drill of spiral.
Fig. 3 is the schematic diagram from falling temperature technique and processing method thereof that the machine of the 3rd embodiment of the present invention adds the compound sword fluted drill of spiral.
Fig. 4 is being not intended to from falling temperature technique and processing method thereof that the machine of the 4th embodiment of the present invention adds the compound sword fluted drill of spiral.
Fig. 5 is the schematic diagram from falling temperature technique and processing method thereof that the machine of the 5th embodiment of the present invention adds the compound sword fluted drill of spiral.
Fig. 6-Fig. 9 is fluted drill chamfering not on the of the present invention first to the 5th embodiment, or after chamfering, leaves chisel edge, or after chamfering without the different structure of the sharp sword of chisel edge.
Figure 10-Figure 13 be the first fluted drill to the 6th embodiment that Cooling Holes is set of the present invention on staight shank or taper shank, the top of shank or shank arranges the different structure of connector.
Figure 14-Figure 21 is different triangular grooves or the dovetail groove arranging on the spiral cutting face of the first fluted drill to the 6th embodiment.
the specific embodiment:
Below in conjunction with accompanying drawing, explain the preferred embodiment from falling temperature technique and processing method thereof that machine of the present invention adds the compound sword fluted drill of spiral, the cutter with two spiral bar of mainly take in embodiment 1-5 describes as example.
Embodiment 1
As Fig. 1, Fig. 6-Fig. 9, Figure 10-Figure 17, shown in Figure 14-Figure 21, the machine of the first embodiment of the present invention add the compound sword fluted drill of spiral from falling temperature technique and processing method thereof, the machine relating generally to for machining adds the compound sword fluted drill of spiral, wherein, Fig. 7 is the apex point place chamfering not of axial centre, therefore chisel edge is larger, cutting resistance is also large, though Fig. 8 is the apex point place chamfering of axial centre, still there is the chisel edge reducing, cutting resistance also relative Fig. 7 reduces a lot, Fig. 9-Figure 10 is that the apex point place of axial centre is after chamfering, become the sharp sword without chisel edge, cutting resistance is minimum, Figure 10-Figure 11 arranges Cooling Holes 16 on the taper shank 12 of fluted drill and staight shank 12, the spiral cooling bath 7 arranging on rear screw face 6 on the cutterhead that the other end of Cooling Holes 16 is wholely set with taper shank 12 and staight shank 12 or the cooling tube 8 arranging integratedly in spiral cooling bath 7 communicate, on the top of handle, be provided with the connector 17 communicating with outside, Figure 12-Figure 13 is provided with the connector 17 communicating with outside on handle body, Figure 16 is spiral triangular groove, Figure 17 arc spiral triangular groove, Figure 14, Figure 18, Figure 20 is the bevel of cutting sth. askew in trapezoidal straight shape, Figure 15, Figure 19, Figure 21 is the bevel of cutting sth. askew in trapezoidal arc, Figure 14, Figure 15, Figure 19, Figure 21 is the bevel of cutting sth. askew in trapezoidal straight shape, Figure 15, Figure 19, Figure 21 is the bevel of cutting sth. askew in trapezoidal arc, Figure 14-15, Figure 19, Figure 21 is dovetail groove bottom arc spiral cutting face, Figure 18, Figure 20 is the straight shape spiral cutting face in dovetail groove bottom, intersect and be formed with oblique cutting edge in interior oblique cutting edge or arc with rear cutting face, cutting edge or arc milling sword, in each spiral bar of cutterhead, there is a screw pair cutting edge 14, outside along this screw pair cutting edge 14 is formed with screw pair cutting face 15, the crossing side edge 19 that is formed with in 15Yu Hou cutting face, screw pair cutting face 4, the front portion towards cutting direction of screw pair cutting edge 14 is formed with spiral cutting face 11, face in spiral cutting face 11 front top of cutterhead axial centre front end spiral bar is rear cutting face 4, spiral cutting face 11 intersects and is formed with cutting edge 5 with rear cutting face 4, rear cutting face 4 is intersected and is formed with chisel edge 1 at axial centre front end with rear cutting face 4, or chisel edge 1 is formed with fillet surface 20 with spiral cutting face 11 place's chamferings of direction of rotation front end, centering minute cutting blade 3 and the chisel edge 1 reducing, or chisel edge 1 is formed with fillet surface 11 with spiral cutting face 11 place's chamferings of direction of rotation front end, the sharp sword 1 of centering minute cutting blade 3 and the nonreactive heart, on the spiral cutting face towards direction of rotation 11, triangular groove shape or dovetail groove shape 39, or arc triangle groove shape 39 or arc dovetail groove shape 39 depressions be provided with at least one-level and spiral cutting face 11 or composite screw cutting face be formed with angle in the bevel 33 of cutting sth. askew, or the bevel 33 of cutting sth. askew in arc, compound locating pair cutting face 34 with inner bulge, the bevel 33 of inside cutting sth. askew, the bevel 33 of cutting sth. askew in arc intersects and is formed with interior oblique sword 35 with rear cutting face 4, 34Yu Hou cutting face, compound locating pair cutting face 4 is intersected and is formed with compound side edge 36, on spiral cutting face 11, be provided with at least one helical groove 53 and cut recessed sword 52 with crossing being formed with in rear cutting face 4, on spiral cutting face 11, the outermost composite screw cutting face of playing decomposition cutting force that arranges of depression is that spiral is strengthened platform 22, the screw pair erecting is strengthened face 23, screw pair is strengthened face 23 and is intersected and be formed with compound side edge 24 with rear cutting face 4, spiral is strengthened platform 22 and is intersected and form reinforcement cutting edge 25 with rear cutting face 4, screw pair cutting face 15 is strengthened crossing being formed with of platform 22 with spiral and is strengthened front cutting edge 26, screw pair cutting face through erecting near the spiral cutting face 11 cutterhead axial centre is that the spiral that arranges of compound locating surface 28 projections decomposes platform 27, spiral decomposes platform 27 and intersects and be formed with locating pair cutting edge 29 with compound locating surface 28, compound locating surface 28 intersects and is formed with location side edge 30 with rear cutting face 4, the face that adds the rear side that in the compound sword fluted drill of spiral direction of rotation, spiral cutting face is corresponding at machine is rear screw face 6, at least one spiral cooling bath 7 is set on rear screw face 6, or helical stand 9 is outputed in the both sides of groove 7, or cooling tube 8 is set in spiral cooling bath 7 integratedly, or on helical stand 9, arrange integratedly or the helicoid 10 of seam sealing, spiral cooling bath 7 or helical stand 9 intersect and are formed with cooling holes 18 with rear cutting face 4, the top shank 12 of spiral cooling bath 7 or helical stand 9 is provided with the Cooling Holes 16 communicating with spiral cooling bath 7 or cooling tube 7, on the top of shank 12 or handle, be provided with the connector 17 communicating with outside, shank 12 relates to taper shank 12 or staight shank 12, or the handle 12 of other various structures.
By at least one spiral cooling bath 7 or the cooling tube 7 arranging, effectively reduce the high temperature that cutter produces because of cutting on rear screw face 6, reduce cutter Yin Gaowen and reduced cutter hardness, because of the extremely flimsy degree of lower hardness, effectively got rid of the scrap producing after Tool in Cutting, the discharge of scrap has reduced the cutting resistance of cutter, make cutter both keep sharp, extend the service life of cutter, reduced again scrap resistance, improved efficiency, reduce cost, saved resource.
According to said structure, through using, prove, cooling fluid is lowered the temperature to cutter from cutting, effect is considerably beyond from top to the dirty effect that can reach, main cause is that the rotation of cutter one side cutter when cutting has hindered cooling trickling direction, the scrap that cutter cuts on the other hand has also hindered cooling fluid and has effectively arrived cutting place, and there is not above-mentioned defect in the mode of cooling fluid directly being delivered to cutting place by cooling tube, therefore, also can effectively release scrap, reduce the frictional strength of front cutting edge, frictional heat generation is reduced, can also increase the area of dissipation of cutterhead simultaneously, reduce cutterhead temperature, extended cutter life, and in process, keep high strength always.
Embodiment 2
As Fig. 2, Fig. 6-Fig. 9, Figure 10-Figure 17, shown in Figure 14-Figure 21 illustrated embodiment 2, the machine of the second embodiment of the present invention add fluted drill from falling temperature technique and processing method thereof, on the basis of the first embodiment, the present invention is the setting compound rear cutting face 4 of one-level arranged in step shape at least of stepped projection on rear cutting face 4, and the compound rear cutting face 4 of arranged in step shape and spiral cutting face 11 intersect the cutting edge 5 of the composite construction that forms arranged in step shape.
By carry out stair-stepping setting on rear cutting face 4, the cutting stability that has both improved fluted drill has also improved efficiency, has reduced cost, has saved resource.
According to said structure, through using, prove, cooling fluid is lowered the temperature to cutter from cutting, effect is considerably beyond from top to the dirty effect that can reach, main cause is that the rotation of cutter one side cutter when cutting has hindered cooling trickling direction, the scrap that cutter cuts on the other hand has also hindered cooling fluid and has effectively arrived cutting place, and there is not above-mentioned defect in the mode of cooling fluid directly being delivered to cutting place by cooling tube, therefore, also can effectively release scrap, reduce the frictional strength of front cutting edge, frictional heat generation is reduced, can also increase the area of dissipation of cutterhead simultaneously, reduce cutterhead temperature, extended cutter life, and in process, keep high strength always.
Embodiment 3
As Fig. 3, Fig. 6-Fig. 9, Figure 10-Figure 17, shown in Figure 14-Figure 21, the machine of the 3rd embodiment of the present invention add fluted drill from falling temperature technique and processing method thereof, on the basis of the first-bis-embodiment, the present invention be mainly on cutting edge 5, be provided with at least one recess sword 50 and backward cutting face 4 extend to form fluted 51.
The cutting resistance of having decomposed cutting edge 5 by recess sword 50 is set on cutting edge 5, has greatly improved stock-removing efficiency, has reduced cost, has saved resource.
According to said structure, through using, prove, cooling fluid is lowered the temperature to cutter from cutting, effect is considerably beyond from top to the dirty effect that can reach, main cause is that the rotation of cutter one side cutter when cutting has hindered cooling trickling direction, the scrap that cutter cuts on the other hand has also hindered cooling fluid and has effectively arrived cutting place, and there is not above-mentioned defect in the mode of cooling fluid directly being delivered to cutting place by cooling tube, therefore, also can effectively release scrap, reduce the frictional strength of front cutting edge, frictional heat generation is reduced, can also increase the area of dissipation of cutterhead simultaneously, reduce cutterhead temperature, extended cutter life, and in process, keep high strength always.
Embodiment 4
As Fig. 4, Fig. 6-Fig. 9, Figure 10-Figure 17, shown in Figure 14-Figure 21 illustrated embodiment 4, the machine of the 3rd embodiment of the present invention add fluted drill from falling temperature technique and processing method thereof, on the basis of first-, tri-embodiments, the present invention is mainly the compound rear cutting face 4 and the crossing cutting edge 5 that forms the composite construction of arranged in step shape of spiral cutting face 11 at arranged in step shape, and it is flat sword with the crossing cutting edge forming 5 of spiral cutting face 11 that the angle in outermost rear cutting face 4 and screw pair cutting face 15 is 90 °.
By 4 being 90 ° and to intersect with spiral cutting face 11 cutting edge 5 forming be the setting of flat sword with the angle in screw pair cutting face 15 in rear cutting face, formed high efficiency reamer, improved the reaming efficiency of fluted drill, reduced cost, saved resource.
According to said structure, through using, prove, cooling fluid is lowered the temperature to cutter from cutting, effect is considerably beyond from top to the dirty effect that can reach, main cause is that the rotation of cutter one side cutter when cutting has hindered cooling trickling direction, the scrap that cutter cuts on the other hand has also hindered cooling fluid and has effectively arrived cutting place, and there is not above-mentioned defect in the mode of cooling fluid directly being delivered to cutting place by cooling tube, therefore, also can effectively release scrap, reduce the frictional strength of front cutting edge, frictional heat generation is reduced, can also increase the area of dissipation of cutterhead simultaneously, reduce cutterhead temperature, extended cutter life, and in process, keep high strength always.
Embodiment 5
As Fig. 5, Fig. 6-Fig. 9, Figure 10-Figure 17, shown in Figure 14-Figure 21 illustrated embodiment 5, the machine of the 5th embodiment of the present invention add fluted drill from falling temperature technique and processing method thereof, on the basis of first-, tetra-embodiments, the present invention is mainly the compound rear cutting face 4 in stepped bump array, intersect on the notch cuttype cutting edge 5 of the arranged in step shapes that form with spiral cutting face 11 with the compound rear cutting face 4 of arranged in step shape, be provided with at least one recess sword 50 and backward cutting face 4 extend to form fluted 51.
By recess sword 50 being set on the notch cuttype cutting edge 5 at arranged in step shape, greatly improved stock-removing efficiency, by the groove 51 extending to form through recess sword 50, greatly improve the radiating efficiency of cutterhead on the compound rear cutting face 4 of stepped bump array, greatly extended the service life of cutter.
According to said structure, through using, prove, cooling fluid is lowered the temperature to cutter from cutting, effect is considerably beyond from top to the dirty effect that can reach, main cause is that the rotation of cutter one side cutter when cutting has hindered cooling trickling direction, the scrap that cutter cuts on the other hand has also hindered cooling fluid and has effectively arrived cutting place, and there is not above-mentioned defect in the mode of cooling fluid directly being delivered to cutting place by cooling tube, therefore, also can effectively release scrap, reduce the frictional strength of front cutting edge, frictional heat generation is reduced, can also increase the area of dissipation of cutterhead simultaneously, reduce cutterhead temperature, extended cutter life, and in process, keep high strength always.
Although the cutter with two spiral bar of take is above illustrated as example, cutter of the present invention also can have a plurality of spiral bar, in each spiral bar, can adopt as described in the structure of embodiment and the combination of other various ways thereof.
Above-described preferred embodiment is illustrative and not restrictive, in the situation that not departing from purport of the present invention and essential characteristic, the present invention can also otherwise implement and specialize, scope of the present invention is limited by claim, and all distortion in claim limited range all fall within the scope of the present invention.
Claims (9)
- A machine add the compound sword fluted drill of spiral from falling temperature technique and processing method thereof, the machine of relating generally to adds the compound sword fluted drill of spiral, in each spiral bar, there is a screw pair cutting edge, outside along this screw pair cutting edge is formed with screw pair cutting face, the front portion towards cutting direction of screw pair cutting edge is formed with spiral cutting face, face in the spiral cutting face front top of cutterhead axial centre front end spiral bar is rear cutting face, spiral cutting face intersects and is formed with cutting edge with rear cutting face, it is characterized in that: Yu Hou cutting face, rear cutting face is intersected and is formed with chisel edge at axial centre front end, or the spiral cutting face place chamfering of chisel edge and direction of rotation front end is formed with fillet surface, centering minute cutting blade and the chisel edge reducing, or the spiral cutting face place chamfering of chisel edge and direction of rotation front end is formed with fillet surface, the sharp sword of centering minute cutting blade and the nonreactive heart, on spiral cutting face, stepped projection is formed with at least one-level composite screw cutting face, form at least spiral cutting sword and the composite screw cutting edge of one-level arranged in step shape, the secondary cutting face of screw pair cutting face and composite screw, spiral cutting face or Yu Hou cutting face, composite screw cutting face intersect that to be formed with stair-stepping cutting edge be ladder sword, on the spiral cutting face towards direction of rotation, spiral triangular groove shape or spiral dovetail groove shape, or spiral arc triangular groove shape or spiral arc dovetail groove shape depression be provided with one-level bottom at least or sidepiece, be formed with spiral cutting face or composite screw cutting face the bevel of cutting sth. askew in the spiral of angle, or the bevel of cutting sth. askew in spiral arc, or the bevel of cutting sth. askew in composite screw, or the bevel of cutting sth. askew in composite screw arc, or composite screw cutting face, or platform is decomposed in the compound location of arc composite screw cutting face and inner bulge, the bevel of cutting sth. askew in spiral, cut sth. askew in spiral arc bevel and rear cutting face intersected and to be formed with interior oblique sword, compound location decomposes that platform and rear cutting face are crossing is formed with compound side edge, on spiral cutting face, be provided with at least one helical groove, the face of the rear side that spiral cutting face is corresponding in panel beating composite screw sword fluted drill direction of rotation is rear screw face, at least one spiral cooling bath is set on rear screw face, or helical stand is outputed in the both sides of cooling bath, or at spiral cooling bath, or at least one cooling tube is set in cooling bath integratedly, or at spiral cooling bath, or on cooling bath, arrange integratedly or the helicoid of seam sealing, spiral cooling bath, or the top tool shank of cooling bath or cooling tube is provided with and spiral cooling bath, or the Cooling Holes that communicates of cooling bath or cooling tube, on the top of shank or handle, be provided with the connector communicating with outside.
- A machine add the compound sword fluted drill of spiral from falling temperature technique and processing method thereof, the machine of relating generally to adds the compound sword fluted drill of spiral, in each spiral bar, there is a screw pair cutting edge, outside along this screw pair cutting edge is formed with screw pair cutting face, the front portion towards cutting direction of screw pair cutting edge is formed with spiral cutting face, face in the spiral cutting face front top of cutterhead axial centre front end spiral bar is rear cutting face, spiral cutting face intersects and is formed with cutting edge with rear cutting face, it is characterized in that: Yu Hou cutting face, rear cutting face is intersected and is formed with chisel edge at axial centre front end, or the spiral cutting face place chamfering of chisel edge and direction of rotation front end is formed with fillet surface, centering minute cutting blade and the chisel edge reducing, or the spiral cutting face place chamfering of chisel edge and direction of rotation front end is formed with fillet surface, the sharp sword of centering minute cutting blade and the nonreactive heart, the crossing angle that is 90 ° that is formed with in Yu Hou cutting face, screw pair cutting face, spiral cutting face intersects and is formed with cutting edge with rear cutting face, and this cutting edge is arranged to arcuate blade or oblique sword, or is provided with at least one recess sword on arcuate blade or oblique sword, or square opening sword, or stairstepping sword, on spiral cutting face, stepped projection is formed with at least one-level composite screw cutting face, form at least spiral cutting sword and the composite screw cutting edge of one-level arranged in step shape, the secondary cutting face of screw pair cutting face and composite screw, spiral cutting face or Yu Hou cutting face, composite screw cutting face intersect that to be formed with stair-stepping cutting edge be ladder sword, on the spiral cutting face towards direction of rotation, spiral triangular groove shape or spiral dovetail groove shape, or spiral arc triangular groove shape or spiral arc dovetail groove shape depression be provided with one-level bottom at least or sidepiece, be formed with spiral cutting face or composite screw cutting face the bevel of cutting sth. askew in the spiral of angle, or the bevel of cutting sth. askew in spiral arc, or the bevel of cutting sth. askew in composite screw, or the bevel of cutting sth. askew in composite screw arc, or composite screw cutting face, or platform is decomposed in the compound location of arc composite screw cutting face and inner bulge, the bevel of cutting sth. askew in spiral, cut sth. askew in spiral arc bevel and rear cutting face intersected and to be formed with interior oblique sword, compound location decomposes that platform and rear cutting face are crossing is formed with compound side edge, on spiral cutting face, be provided with at least one helical groove, the face of the rear side that spiral cutting face is corresponding in panel beating composite screw sword fluted drill direction of rotation is rear screw face, at least one spiral cooling bath is set on rear screw face, or helical stand is outputed in the both sides of cooling bath, or at spiral cooling bath, or at least one cooling tube is set in cooling bath integratedly, or at spiral cooling bath, or on cooling bath, arrange integratedly or the helicoid of seam sealing, spiral cooling bath, or the top tool shank of cooling bath or cooling tube is provided with and spiral cooling bath, or the Cooling Holes that communicates of cooling bath or cooling tube, on the top of shank or handle, be provided with the connector communicating with outside.
- A machine add the compound sword fluted drill of spiral from falling temperature technique and processing method thereof, the machine of relating generally to adds the compound sword fluted drill of spiral, in each spiral bar, there is a screw pair cutting edge, outside along this screw pair cutting edge is formed with screw pair cutting face, the front portion towards cutting direction of screw pair cutting edge is formed with spiral cutting face, face in the spiral cutting face front top of cutterhead axial centre front end spiral bar is rear cutting face, spiral cutting face intersects and is formed with cutting edge with rear cutting face, it is characterized in that: Yu Hou cutting face, rear cutting face is intersected and is formed with chisel edge at axial centre front end, or the spiral cutting face place chamfering of chisel edge and direction of rotation front end is formed with fillet surface, centering minute cutting blade and the chisel edge reducing, or the spiral cutting face place chamfering of chisel edge and direction of rotation front end is formed with fillet surface, the sharp sword of centering minute cutting blade and the nonreactive heart, crossing being formed with in Yu Hou cutting face, screw pair cutting face is the angle that is greater than 90 °, spiral cutting face intersects and is formed with cutting edge with rear cutting face, and this cutting edge is arranged to arcuate blade or oblique sword, or is provided with at least one recess sword on arcuate blade or oblique sword, or square opening sword, or stairstepping sword, on spiral cutting face, stepped projection is formed with at least one-level composite screw cutting face, form at least spiral cutting sword and the composite screw cutting edge of one-level arranged in step shape, the secondary cutting face of screw pair cutting face and composite screw, spiral cutting face or Yu Hou cutting face, composite screw cutting face intersect that to be formed with stair-stepping cutting edge be ladder sword, on the spiral cutting face towards direction of rotation, spiral triangular groove shape or spiral dovetail groove shape, or spiral arc triangular groove shape or spiral arc dovetail groove shape depression be provided with one-level bottom at least or sidepiece, be formed with spiral cutting face or composite screw cutting face the bevel of cutting sth. askew in the spiral of angle, or the bevel of cutting sth. askew in spiral arc, or the bevel of cutting sth. askew in composite screw, or the bevel of cutting sth. askew in composite screw arc, or composite screw cutting face, or platform is decomposed in the compound location of arc composite screw cutting face and inner bulge, the bevel of cutting sth. askew in spiral, cut sth. askew in spiral arc bevel and rear cutting face intersected and to be formed with interior oblique sword, compound location decomposes that platform and rear cutting face are crossing is formed with compound side edge, on spiral cutting face, be provided with at least one helical groove, the face of the rear side that spiral cutting face is corresponding in panel beating composite screw sword fluted drill direction of rotation is rear screw face, at least one spiral cooling bath is set on rear screw face, or helical stand is outputed in the both sides of cooling bath, or at spiral cooling bath, or at least one cooling tube is set in cooling bath integratedly, or at spiral cooling bath, or on cooling bath, arrange integratedly or the helicoid of seam sealing, spiral cooling bath, or the top tool shank of cooling bath or cooling tube is provided with and spiral cooling bath, or the Cooling Holes that communicates of cooling bath or cooling tube, on the top of shank or handle, be provided with the connector communicating with outside.
- 4. as described in as arbitrary in claim 1-3 machine add the compound sword fluted drill of spiral from falling temperature technique and processing method thereof, it is characterized in that: on the cutting edge of described cutter, be formed with at least one recess sword, or square opening sword, or trapezoidal sword, or the compound recess sword overlapping on recess sword, or compound square opening sword, or compound trapezoidal sword, and cutting face is extended or is amplified shape and extended to form at least one groove or compound groove backward, or square opening groove or compound square opening groove, or dovetail groove or compound dovetail groove.
- 5. the machine as described in as arbitrary in claim 1-3 add the compound sword fluted drill of spiral from falling temperature technique and processing method thereof, it is characterized in that: at machine, add on the compound sword fluted drill of spiral the outermost side edge direction that sharp sword or chisel edge intersect to Yu Hou cutting face, screw pair cutting face, cutting edge is the arranged in step shape of upper and lower and front and back from the direction of rear cutting face or spiral cutting face, and to be formed with stepped cutting edge be trapezoidal sword and ladder sword.
- 6. the machine as described in as arbitrary in claim 1-3 add the compound sword fluted drill of spiral from falling temperature technique and processing method thereof, it is characterized in that: on the spiral cutting face of described stairs of knives shape, being formed with outermost compound setting screw cutting face is spiral heat dissipation face, the most compound setting screw cutting face of close the axial centre of inner side is spiral decomposition platform.
- 7. the machine as described in as arbitrary in claim 1-3 add the compound sword fluted drill of spiral from falling temperature technique and processing method thereof, it is characterized in that: the spiral bar of described cutter is taked step structure, the spiral bar of rear end is larger form before and after the reamer of step structure, or in the spiral bar of rear end, be provided with the fluted drill of the drilling and tapping integrative-structure of screw tap structure.
- 8. the machine as described in as arbitrary in claim 1-3 add the compound sword fluted drill of spiral from falling temperature technique and processing method thereof, it is characterized in that: Yu Hou cutting face, rear cutting face is intersected and is formed with chisel edge at axial centre front end; Or the spiral cutting face intersection chamfering of chisel edge and direction of rotation front end is formed with fillet surface, centering minute cutting blade and the chisel edge reducing; Or the spiral cutting face intersection chamfering of chisel edge and direction of rotation front end is formed with fillet surface, the sharp sword of centering minute cutting blade and the nonreactive heart; Or chisel edge, or the sharp sword of the nonreactive heart, cut sword with the centering of both sides and be formed with S sword; Or being formed with at the axial centre front end of fluted drill the apex point that projection arranges, the center of apex point is chisel edge, or the sharp sword of the nonreactive heart, divides cutting blade with the centering of the protruding both sides, apex point center that arrange, center, cutterhead top, is formed with S sword or anti-S sword.
- 9. the machine as described in as arbitrary in claim 1-3 add the compound sword fluted drill of spiral from falling temperature technique and processing method thereof, it is characterized in that: at described fluted drill, be Integral alloy.
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| CN201310611952.2A CN104001972A (en) | 2013-11-26 | 2013-11-26 | Self-cooling technology for machining twist drill with spiral composite edge and machining method thereof |
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| CN201310611952.2A CN104001972A (en) | 2013-11-26 | 2013-11-26 | Self-cooling technology for machining twist drill with spiral composite edge and machining method thereof |
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| CN104001972A true CN104001972A (en) | 2014-08-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107716959A (en) * | 2017-11-21 | 2018-02-23 | 麻城鑫鸿电子科技有限公司 | A kind of processing mobile phone miniature parts bloom rose reamer |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5622462A (en) * | 1995-04-11 | 1997-04-22 | Credo Tool Company | Twist drill bit |
| CN101282806A (en) * | 2005-08-02 | 2008-10-08 | 天窗工具有限公司 | Twist drill |
| CN101524768A (en) * | 2009-04-10 | 2009-09-09 | 周安善 | New minor-edge multipoint aerial drill |
| CN102026756A (en) * | 2008-05-16 | 2011-04-20 | 钴领无限公司 | Multi-blade solid carbide drill |
| CN102126039A (en) * | 2011-01-22 | 2011-07-20 | 李仕清 | Spiral cutter for composite positioned cutting |
| CN202137424U (en) * | 2011-01-22 | 2012-02-08 | 李仕清 | Spiral tool for combined positioning cutting |
| CN202356688U (en) * | 2011-08-31 | 2012-08-01 | 江苏万金工具有限公司 | Twist drill bit cooling structure |
| CN103381497A (en) * | 2012-05-03 | 2013-11-06 | 李仕清 | Centering spiral cutter for combined positioning and combined cutting |
-
2013
- 2013-11-26 CN CN201310611952.2A patent/CN104001972A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5622462A (en) * | 1995-04-11 | 1997-04-22 | Credo Tool Company | Twist drill bit |
| CN101282806A (en) * | 2005-08-02 | 2008-10-08 | 天窗工具有限公司 | Twist drill |
| CN102026756A (en) * | 2008-05-16 | 2011-04-20 | 钴领无限公司 | Multi-blade solid carbide drill |
| CN101524768A (en) * | 2009-04-10 | 2009-09-09 | 周安善 | New minor-edge multipoint aerial drill |
| CN102126039A (en) * | 2011-01-22 | 2011-07-20 | 李仕清 | Spiral cutter for composite positioned cutting |
| CN202137424U (en) * | 2011-01-22 | 2012-02-08 | 李仕清 | Spiral tool for combined positioning cutting |
| CN202356688U (en) * | 2011-08-31 | 2012-08-01 | 江苏万金工具有限公司 | Twist drill bit cooling structure |
| CN103381497A (en) * | 2012-05-03 | 2013-11-06 | 李仕清 | Centering spiral cutter for combined positioning and combined cutting |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107716959A (en) * | 2017-11-21 | 2018-02-23 | 麻城鑫鸿电子科技有限公司 | A kind of processing mobile phone miniature parts bloom rose reamer |
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Application publication date: 20140827 |