CN103722222A - Self-cooling center drill or self-cooling counter bit - Google Patents
Self-cooling center drill or self-cooling counter bit Download PDFInfo
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- CN103722222A CN103722222A CN201310610984.0A CN201310610984A CN103722222A CN 103722222 A CN103722222 A CN 103722222A CN 201310610984 A CN201310610984 A CN 201310610984A CN 103722222 A CN103722222 A CN 103722222A
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- cutting
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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
- B23B51/0063—Centerdrills
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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
- B23B51/10—Bits for countersinking
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Abstract
The invention provides a self-cooling center drill or a self-cooling counter bit, and mainly relates to a machining twist drill used for machining. The drill is high in stability, high in cooling efficiency and long in service life, and is easy to position during drilling. The drill comprises a cutter head, and is characterized in that the back side surface corresponding to a cutting face in the rotation direction is a rear groove surface, at least one groove is formed in the rear groove surface, or the two sides of the groove are provided with pits, or a cooling pipe is integrally arranged in the groove, or a sealing surface is integrally arranged on the pits, the groove forms a cavity, a handle portion at the top of the self-cooling center drill or the self-cooling counter bit is provided with a cooling hole which is communicated with the groove or the cooling pipe, and the top of the handle portion or a handle is provided with a connection port communicated with the outside.
Description
Technical field:
The present invention relates to a kind of from lower the temperature centre drill or the counterbit of certainly lowering the temperature, this kind of from lower the temperature centre drill or the counterbit of certainly lowering the temperature for drilling machine processing and pincers worker maintenance.
Background technology:
At present, the fluted drill using in machining is by chisel edge, cutting edge, secondary sword, side edge forms, cutting edge and secondary sword are roughly single structure, adjective-centre structure is poor, these fluted drill utmost points are not durable, especially when cutting the higher workpiece of hardness, (Milling) easily produce a large amount of heat boring, the lower hardness that causes cutter head, cause the wearing and tearing of cutter head, also there is the defect of frangibility in this cutter head simultaneously, and, because the cutting edge on cutter head both sides is symmetrical when the work, and cutting output is only generally that tens of microns are to 1 millimeter, so be difficult to grasp angle and height when artificial reconditioning, in addition, the precision in these fluted drills and the hole that processes is defective, very easily there is waste product, simultaneously, when the harder workpiece of processing, also exist and cutting edge is collapsed to tooth or cutter head break that beating lives causes the problem of industrial accident.
Summary of the invention:
The present invention proposes in view of the above-mentioned problems, and take provides a kind of helical tooth blade of novel combined positioning cutting as object, 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 from lowering the temperature centre drill or the counterbit of certainly lowering the temperature, relate generally to centre drill or counterbit for machining, relate to various not with the centre drill that protects cone, various bands protect the centre drill of cone, various arc centre drills, various centre drills, the various Morse taper shank taper countersinks with interchangeable guide pillar, the staight shank taper countersink of the whole guide pillar of various bands, the various Morse taper shank counterbores with interchangeable guide pillar, the various Mohs staight shank counterbores with interchangeable guide pillar, various staight shank taper countersinks, various taper shank taper countersinks, or other various counterbits, or various centre drills, comprise cutterhead and the shank of tool, cutterhead is provided with a plurality of cutting blades or cutting cutter hub integratedly, the tooth shape towards cutting direction exterior side of each cutting blade or cutting cutter hub becomes cutting edge, the face towards direction of rotation at cutting edge place forms cutting face, the face of the axial forward end rear side in cutting face forms rear cutting face, the crossing cutting edge that is formed with in Yu Hou cutting face, cutting face, it is characterized in that: a kind of from lowering the temperature centre drill or on the counterbit of lowering the temperature, integratedly, or connect and carry out with forming as one the setting of following technical scheme, at various counterbits, or on the shank of tool of various centre drills, be provided with main Cooling Holes through connector and the exterior of shank of tool axial centre top and near setting, when machining, cooling fluid is directly injected to various counterbits by a kind of from lower the temperature centre drill or the connector on the counterbit of lowering the temperature, or the main Cooling Holes on the shank of tool of various centre drills, cooling tube on the shank of tool inject that cutter head arranges cooling bath or Cooling Holes, last cooling fluid is through various counterbits, on the cutting face of various centre drills or near the cooling vent arranging cutting edge be injected into various counterbits, or various centre drill cutting place, effectively reduce cutting temperature, hydraulic pressure can directly be released bits again, reduced cutting resistance, a kind of from lowering the temperature centre drill or on the counterbit of lowering the temperature, integratedly, or connect and carry out with forming as one the setting of following technical scheme, inner side in the cutting face towards direction of rotation of this front cutting edge, the at least combined cut face of one-level inner side that is provided with of stepped projection, be formed with the compound location crossing with the combined cut face of inner side and decompose platform, the cutting face of arranged in step shape is for efficiently cutting platform, the cutting edge of arranged in step shape is efficient minute cutting blade, the outermost platform of efficiently cutting is that cracking resistance is cut platform, outermost efficient minute cutting blade is that cracking resistance is divided cutting blade, with stair-stepping cutting edge, or from cutting edge to direction of rotation on cutting face, relatively depression is provided with Baltimore groove, or dovetail groove, or square groove, or deep-slotted chip breaker, or shaped groove, or cutting face after planar shaped, or cutting face after notch cuttype, the any one cutting way of above structure, or the formed combination sword of any combination of above cutting way arranges formed a kind of from lowering the temperature centre drill or the counterbit of certainly lowering the temperature on centre drill or counterbit.
A kind of from lowering the temperature centre drill or the counterbit of certainly lowering the temperature, relate generally to centre drill or counterbit for machining, relate to various not with the centre drill that protects cone, various bands protect the centre drill of cone, various arc centre drills, various centre drills, the various Morse taper shank taper countersinks with interchangeable guide pillar, the staight shank taper countersink of the whole guide pillar of various bands, the various Morse taper shank counterbores with interchangeable guide pillar, the various Mohs staight shank counterbores with interchangeable guide pillar, various staight shank taper countersinks, various taper shank taper countersinks, or other various counterbits, or various centre drills, comprise cutterhead and the shank of tool, cutterhead is provided with a plurality of cutting blades or cutting cutter hub integratedly, the tooth shape towards cutting direction exterior side of each cutting blade or cutting cutter hub becomes cutting edge, the face towards direction of rotation at cutting edge place forms cutting face, the face of the axial forward end rear side in cutting face forms rear cutting face, the crossing cutting edge that is formed with in Yu Hou cutting face, cutting face, it is characterized in that: a kind of from lowering the temperature centre drill or on the counterbit of lowering the temperature, integratedly, or connect and carry out with forming as one the setting of following technical scheme, at various counterbits, or on the shank of tool of various centre drills, be provided with connector and the exterior that main Cooling Holes arranges on shank of tool body, when machining, cooling fluid is directly injected to various counterbits by a kind of from lower the temperature centre drill or the connector on the counterbit of lowering the temperature, or the main Cooling Holes on the shank of tool of various centre drills, main Cooling Holes on the shank of tool inject that cutter head arranges cooling bath or Cooling Holes, last cooling fluid is through various counterbits, on the cutting face of various centre drills or near the cooling vent arranging cutting edge be injected into various counterbits, or various centre drill cutting place, effectively reduce cutting temperature, hydraulic pressure can directly be released bits again, reduced cutting resistance, a kind of from lowering the temperature centre drill or on the counterbit of lowering the temperature, integratedly, or connect and carry out with forming as one the setting of following technical scheme, inner side in the cutting face towards direction of rotation of this front cutting edge, the at least combined cut face of one-level inner side that is provided with of stepped projection, be formed with the compound location crossing with the combined cut face of inner side and decompose platform, the cutting face of arranged in step shape is for efficiently cutting platform, the cutting edge of arranged in step shape is efficient minute cutting blade, the outermost platform of efficiently cutting is that cracking resistance is cut platform, outermost efficient minute cutting blade is that cracking resistance is divided cutting blade, with stair-stepping cutting edge, or from cutting edge to direction of rotation on cutting face, relatively depression is provided with Baltimore groove, or dovetail groove, or square groove, or deep-slotted chip breaker, or shaped groove, or cutting face after planar shaped, or cutting face after notch cuttype, the any one cutting way of above structure, or the formed combination sword of any combination of above cutting way arranges formed a kind of from lowering the temperature centre drill or the counterbit of certainly lowering the temperature on centre drill or counterbit.
Preferably, the shank that has taper shank or staight shank or polyhedron shape structure at described a kind of shank of tool from lower the temperature centre drill or the counterbit of certainly lowering the temperature at least.
Preferably, the outside shank of described a kind of shank of tool from lower the temperature centre drill or the counterbit of certainly lowering the temperature or center, top and near be provided with at least one connector.
Preferably, described a kind of from lowering the temperature centre drill or be provided with at least one Cooling Holes or cooling bath on the inwall of the shank of tool of the counterbit of lowering the temperature.
Preferably, described a kind of from lowering the temperature centre drill or be provided with at least one cooling vent on the shank of tool of the counterbit of lowering the temperature.
Preferably, described a kind of from lowering the temperature centre drill or on each cutting blade of the counterbit of lowering the temperature or the apex point of cutting cutter hub, from the position of tool axis the direction of front cutting edge toward the outer side, be formed with at least one-level cutting face protrudingly, at least platform is cut in the compound location of one-level, and one-level front cutting edge at least.
Preferably, at described cutting blade or the cutting Huo Hou cutting face, cutting face of cutter hub and the cutting edge on fillet surface or a centering minute cutting blade, at least one recess sword or compound recess sword are set, 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, on the cutterhead of described cutter, be provided with alloy cutter head, on the cutting face of described alloy cutter head, be provided with one or more levels step, and be formed with stair-stepping cutting edge on the crossing cutting edge in rear cutting face or cutting face.
Beneficial effect:
By at least one cooling tube arranging, effectively reduce the high temperature that cutter produces because of cutting on centre drill or counterbit, 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.
Accompanying drawing explanation, in this accompanying drawing:
Fig. 1, Figure 20-Figure 23 is a kind of schematic diagram from lower the temperature centre drill or the counterbit of certainly lowering the temperature of the first embodiment of the present invention.
Fig. 2, Fig. 3, Fig. 4, Figure 20-Figure 23 is a kind of schematic diagram from lower the temperature centre drill or the counterbit of certainly lowering the temperature of the second embodiment of the present invention.
Fig. 5, Fig. 6 Fig. 7, Figure 20-Figure 23 is a kind of schematic diagram from lower the temperature centre drill or the counterbit of certainly lowering the temperature of the 3rd embodiment of the present invention.
Fig. 8, Fig. 9, Figure 20-Figure 23 is a kind of schematic diagram from lower the temperature centre drill or the counterbit of certainly lowering the temperature of the 4th embodiment of the present invention.
Figure 10, Figure 11, Figure 20-Figure 23 is a kind of schematic diagram from lower the temperature centre drill or the counterbit of certainly lowering the temperature of the 5th embodiment of the present invention.
Figure 12, Figure 13, Figure 20-Figure 23 is a kind of schematic diagram from lower the temperature centre drill or the counterbit of certainly lowering the temperature of the 6th embodiment of the present invention.
Figure 14, Figure 15, Figure 20-Figure 23 is a kind of schematic diagram from lower the temperature centre drill or the counterbit of certainly lowering the temperature of the 7th embodiment of the present invention.
Figure 16, Figure 17, Figure 20-Figure 23 is the schematic diagram of certainly lower the temperature centre drill or the counterbit of certainly lowering the temperature of the 8th embodiment of the present invention.
Figure 18, Figure 19, Figure 20-Figure 23 is a kind of schematic diagram from lower the temperature centre drill or the counterbit of certainly lowering the temperature of the 9th embodiment of the present invention.
The specific embodiment:
Below in conjunction with accompanying drawing, explain of the present invention a kind ofly from lowering the temperature the preferred embodiment of centre drill or the counterbit of certainly lowering the temperature, in embodiment 1-9, mainly take and falling temperature technique is set on the centre drill of high-efficient cutting technology or counterbit describes as example.
As Fig. 1, shown in Figure 20-Figure 23, the first embodiment of the present invention a kind of from lower the temperature centre drill or from the counterbit of lowering the temperature not with the embodiment protecting on the centre drill of cone, relate generally to centre drill or counterbit for machining, comprise cutterhead 1, on cutterhead 1, be provided with integratedly front cutting cone 29 and rear cutting cone 30, between front cutting cone 29 and rear cutting cone 30, be provided with integratedly front cutter hub 31, the rear portion of rear cutting cone 30 is rear cutter hub 32, front cutting cone 29, front cutter hub and rear cutting cone 30 are respectively by a plurality of cutting blades or cutting cutter hub 2 form integratedly, the tooth shape towards cutting direction exterior side of each cutting blade or cutting cutter hub 2 becomes front cutting edge 14, the face towards direction of rotation at front cutting edge 14 places forms cutting face 7, the face of the axial forward end rear side in cutting face 7 forms rear cutting face 4, cutting face 7 is intersected and is formed with main cutting edge 21 with rear cone cutting face 25, the face of the exterior side of front cutting edge 14 and main cutting edge 21 is secondary cutting face 24, rear cone cutting face 25, a kind of from lowering the temperature centre drill or on the counterbit of lowering the temperature, integratedly, or connect and carry out with forming as one the setting of following technical scheme, inner side in the cutting face 7 towards direction of rotation of this front cutting edge 14, the at least combined cut face 3 of one-level inner side that is provided with of stepped projection, and platform 6 is decomposed in the compound location that the combined cut face 3 with inner side that is formed with intersects, the cutting face of arranged in step shape is for efficiently cutting platform, the main cutting edge 21 of arranged in step shape, 10 or front cutting edge 14, 15 is efficient minute cutting blade, the outermost platform of efficiently cutting is that cracking resistance is cut platform 7, outermost efficient minute cutting blade is that cracking resistance is divided cutting blade 14, 21, Figure 11-Figure 12 arranges main Cooling Holes 16 on the taper shank 12 of fluted drill and staight shank 12, the cooling bath 13 arranging on cone cutting face 25 after on the cutterhead that the other end of Cooling Holes 16 is wholely set with taper shank 12 or staight shank 12 or the cooling tube 8 arranging integratedly in cooling bath 13 communicate, on the top of handle, be provided with the connector 17 communicating with outside, Figure 13-Figure 14 is provided with the connector 17 communicating with outside on handle body, on the rear cone cutting face 25 of centre drill or counterbit, at least one cooling bath 13 or Cooling Holes 13 are set, or cooling bench 9 is outputed in the both sides of cooling bath 13, or cooling tube 8 is set in cooling bath 13 integratedly, or on cooling bench 9, arrange integratedly or the helicoid 10 of seam sealing, cooling bath 13 or Cooling Holes 13 or cooling tube 8 or cooling bench 9 intersect and are formed with cooling vent 18 with rear cutting face 4, on the top shank 12 of cooling bath 16 or Cooling Holes 16 or cooling bench 9, be provided with the main Cooling Holes 16 communicating with cooling bath 13 or Cooling Holes 13 or cooling tube 8, on the top of shank 12 or handle, be provided with the connector 17 communicating with outside.
By at least one cooling bath 13 or the Cooling Holes 13 that arrange on rear cone cutting face 25, or cooling tube 8 is set in cooling bath 13 effectively reduces the high temperature that cutter produces because of cutting, reduce cutter Yin Gaowen and reduced the damage that cutter hardness causes, effectively got rid of the scrap producing after Tool in Cutting, the discharge of scrap has reduced the cutting resistance of cutter, by the cutting edge of cutter being arranged to stair-stepping ladder sword, improved the sharp of cutter, extended again the service life of cutter, hydraulic pressure is gone out scrap and has been reduced again the resistance of scrap when Tool in Cutting, improved efficiency, 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.
As Fig. 2, Fig. 3, shown in Fig. 4, Figure 20-Figure 23, a kind of embodiment from lower the temperature centre drill or the counterbit of certainly lowering the temperature of the second embodiment of the present invention, on the basis of the first embodiment, present embodiment is that recess sword 20 is set on main cutting edge 21, and recess sword 20 7 extends to form groove 19 to cutting face, the setting of recess sword 20 is applied to band and protects on the centre drill of cone, compares embodiment one and can increase substantially stock-removing efficiency.
As Fig. 7, Fig. 8, shown in Fig. 9, Figure 20-Figure 23, a kind of embodiment from lower the temperature centre drill or the counterbit of certainly lowering the temperature of the 3rd embodiment of the present invention, first---on the basis of two embodiments, present embodiment is that above-mentioned technology is applied on arc centre drill, the coming to the same thing of implementation result and embodiment one.
As Figure 10, Figure 11, shown in Figure 20-Figure 23, a kind of embodiment from lower the temperature centre drill or the counterbit of certainly lowering the temperature of the 4th embodiment of the present invention, first---on the basis of three embodiments, present embodiment is that above-mentioned technology is applied to the embodiment with 90 ° of taper countersinks of Morse taper shank of interchangeable guide pillar, present embodiment comprises cutterhead, cutterhead is provided with a plurality of cutting blades or cutting cutter hub 2 integratedly, in cutterhead centre, one hole is set, on hole, configure a guide pillar 37, the side of cutterhead arranges a positioning screw hole, through the fixing guide pillar 37 of screw 38, through coming to the same thing of implementation result and embodiment one.
Embodiment 5
As Figure 12, Figure 13, Figure 20-Figure 23 shows, a kind of embodiment from lower the temperature centre drill or the counterbit of certainly lowering the temperature of the 5th embodiment of the present invention, first---on the basis of four embodiments, present embodiment is that above-mentioned technology is applied on the 90 ° of taper countersinks of staight shank with whole guide pillar, present embodiment comprises cutterhead, cutterhead is provided with a plurality of cutting blades or cutting cutter hub 2 integratedly, in cutterhead centre, one hole is set, on hole, configure a guide pillar 37, cutterhead front end arranges a fixing guide pillar 39 integratedly, through coming to the same thing of implementation result and embodiment one.
As Figure 14, Figure 15, shown in Figure 20-Figure 23, a kind of embodiment from lower the temperature centre drill or the counterbit of certainly lowering the temperature of the 5th embodiment of the present invention, first---on the basis of five embodiments, present embodiment comprises cutterhead, cutterhead is provided with a plurality of cutting blades or cutting cutter hub 2 integratedly, in cutterhead centre, one hole is set, on hole, configure a guide pillar 37, the side of cutterhead arranges a positioning screw hole, through the fixing guide pillar 37 of screw 38, present embodiment is that aforementioned techniques is applied in to the 90 ° of taper countersinks of Morse taper shank with interchangeable guide pillar, coming to the same thing of implementation result and embodiment one.
As Figure 16, Figure 17, shown in Figure 20-Figure 23, a kind of embodiment from lower the temperature centre drill or the counterbit of certainly lowering the temperature of the 5th embodiment of the present invention, on the basis of the first-six embodiment, present embodiment is that above-mentioned technology is applied in the embodiment on the Mohs staight shank counterbore of interchangeable guide pillar, present embodiment comprises cutterhead, cutterhead is provided with a plurality of cutting blades or cutting cutter hub 2 integratedly, in cutterhead centre, one hole is set, on hole, configure a guide pillar 37, cutterhead front end arranges a fixing guide pillar 39 integratedly, through coming to the same thing of implementation result and embodiment one.
Embodiment 8
As Figure 18, shown in Figure 19, Figure 20-Figure 23, a kind of embodiment from lower the temperature centre drill or the counterbit of certainly lowering the temperature of the 8th embodiment of the present invention, first---on the basis of seven embodiments, present embodiment is that above-mentioned technology is applied in to 60 °, 90 °, the 120 ° embodiment on staight shank taper countersink, the coming to the same thing of implementation result and embodiment one.
Embodiment 9
As Figure 20, shown in Figure 21, Figure 20-Figure 23, a kind of embodiment from lower the temperature centre drill or the counterbit of certainly lowering the temperature of the 9th embodiment of the present invention, first---on the basis of eight embodiments, present embodiment is that above-mentioned technology is applied in to 60 °, 90 °, the 120 ° embodiment on taper shank taper countersink, the coming to the same thing of implementation result and embodiment one.
By at least one cooling bath 13 or the Cooling Holes 13 that arrange on rear cone cutting face 25, or cooling tube 8 is set in cooling bath 13 effectively reduces the high temperature that cutter produces because of cutting, reduce cutter Yin Gaowen and reduced the damage that cutter hardness causes, 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, extended 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, also can effectively release scrap, reduce the frictional strength of front cutting edge, frictional heat generation is reduced, reduce cutterhead temperature, extended cutter life, and in process, keep high strength always.
Although take above and there is a kind of of a plurality of cutting blades or cutting cutter hub and be illustrated as example from lower the temperature centre drill or the counterbit of certainly lowering the temperature, compound sword technology of the present invention also can be replaced the main body of cutting by the higher alloy cutter head of hardness, both having effectively utilized new invention cutting way makes cutting edge efficiency higher, the advantage that intensity is larger, effectively utilized again the high rigidity of alloy cutter head, the defect of having avoided Integral alloy centre drill or counterbit easily to break, solved workpiece hardness when too high, a difficult problem that is difficult to centering or chamfering, but cutter of the present invention also can have a plurality of cutting blades or cutting cutter hub, each cutting blade or cutting can adopt on cutter hub as described in the structure of embodiment and the combination of other various ways thereof.
Above-described preferred embodiment is illustrative and not restrictive, and 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 (10)
1. one kind from lower the temperature centre drill or the counterbit of certainly lowering the temperature, relate generally to centre drill or counterbit for machining, relate to various not with the centre drill that protects cone, various bands protect the centre drill of cone, various arc centre drills, various centre drills, the various Morse taper shank taper countersinks with interchangeable guide pillar, the staight shank taper countersink of the whole guide pillar of various bands, the various Morse taper shank counterbores with interchangeable guide pillar, the various Mohs staight shank counterbores with interchangeable guide pillar, various staight shank taper countersinks, various taper shank taper countersinks, or other various counterbits, or various centre drills, comprise cutterhead and the shank of tool, cutterhead is provided with a plurality of cutting blades or cutting cutter hub integratedly, the tooth shape towards cutting direction exterior side of each cutting blade or cutting cutter hub becomes cutting edge, the face towards direction of rotation at cutting edge place forms cutting face, the face of the axial forward end rear side in cutting face forms rear cutting face, the crossing cutting edge that is formed with in Yu Hou cutting face, cutting face, it is characterized in that: a kind of from lowering the temperature centre drill or on the counterbit of lowering the temperature, integratedly, or connect and carry out with forming as one the setting of following technical scheme, at various counterbits, or on the shank of tool of various centre drills, be provided with main Cooling Holes through connector and the exterior of shank of tool axial centre top and near setting, when machining, cooling fluid is directly injected to various counterbits by a kind of from lower the temperature centre drill or the connector on the counterbit of lowering the temperature, or the main Cooling Holes on the shank of tool of various centre drills, cooling tube on the shank of tool inject that cutter head arranges cooling bath or Cooling Holes, last cooling fluid is through various counterbits, on the cutting face of various centre drills or near the cooling vent arranging cutting edge be injected into various counterbits, or various centre drill cutting place, effectively reduce cutting temperature, hydraulic pressure can directly be released bits again, reduced cutting resistance, a kind of from lowering the temperature centre drill or on the counterbit of lowering the temperature, integratedly, or connect and carry out with forming as one the setting of following technical scheme, inner side in the cutting face towards direction of rotation of this front cutting edge, the at least combined cut face of one-level inner side that is provided with of stepped projection, be formed with the compound location crossing with the combined cut face of inner side and decompose platform, the cutting face of arranged in step shape is for efficiently cutting platform, the cutting edge of arranged in step shape is efficient minute cutting blade, the outermost platform of efficiently cutting is that cracking resistance is cut platform, outermost efficient minute cutting blade is that cracking resistance is divided cutting blade, with stair-stepping cutting edge, or from cutting edge to direction of rotation on cutting face, relatively depression is provided with Baltimore groove, or dovetail groove, or square groove, or deep-slotted chip breaker, or shaped groove, or cutting face after planar shaped, or cutting face after notch cuttype, the any one cutting way of above structure, or the formed combination sword of any combination of above cutting way arranges formed a kind of from lowering the temperature centre drill or the counterbit of certainly lowering the temperature on centre drill or counterbit.
2. one kind from lower the temperature centre drill or the counterbit of certainly lowering the temperature, relate generally to centre drill or counterbit for machining, relate to various not with the centre drill that protects cone, various bands protect the centre drill of cone, various arc centre drills, various centre drills, the various Morse taper shank taper countersinks with interchangeable guide pillar, the staight shank taper countersink of the whole guide pillar of various bands, the various Morse taper shank counterbores with interchangeable guide pillar, the various Mohs staight shank counterbores with interchangeable guide pillar, various staight shank taper countersinks, various taper shank taper countersinks, or other various counterbits, or various centre drills, comprise cutterhead and the shank of tool, cutterhead is provided with a plurality of cutting blades or cutting cutter hub integratedly, the tooth shape towards cutting direction exterior side of each cutting blade or cutting cutter hub becomes cutting edge, the face towards direction of rotation at cutting edge place forms cutting face, the face of the axial forward end rear side in cutting face forms rear cutting face, the crossing cutting edge that is formed with in Yu Hou cutting face, cutting face, it is characterized in that: a kind of from lowering the temperature centre drill or on the counterbit of lowering the temperature, integratedly, or connect and carry out with forming as one the setting of following technical scheme, at various counterbits, or on the shank of tool of various centre drills, be provided with connector and the exterior that main Cooling Holes arranges on shank of tool body, when machining, cooling fluid is directly injected to various counterbits by a kind of from lower the temperature centre drill or the connector on the counterbit of lowering the temperature, or the main Cooling Holes on the shank of tool of various centre drills, main Cooling Holes on the shank of tool inject that cutter head arranges cooling bath or Cooling Holes, last cooling fluid is through various counterbits, on the cutting face of various centre drills or near the cooling vent arranging cutting edge be injected into various counterbits, or various centre drill cutting place, effectively reduce cutting temperature, hydraulic pressure can directly be released bits again, reduced cutting resistance, a kind of from lowering the temperature centre drill or on the counterbit of lowering the temperature, integratedly, or connect and carry out with forming as one the setting of following technical scheme, inner side in the cutting face towards direction of rotation of this front cutting edge, the at least combined cut face of one-level inner side that is provided with of stepped projection, be formed with the compound location crossing with the combined cut face of inner side and decompose platform, the cutting face of arranged in step shape is for efficiently cutting platform, the cutting edge of arranged in step shape is efficient minute cutting blade, the outermost platform of efficiently cutting is that cracking resistance is cut platform, outermost efficient minute cutting blade is that cracking resistance is divided cutting blade, with stair-stepping cutting edge, or from cutting edge to direction of rotation on cutting face, relatively depression is provided with Baltimore groove, or dovetail groove, or square groove, or deep-slotted chip breaker, or shaped groove, or cutting face after planar shaped, or cutting face after notch cuttype, the any one cutting way of above structure, or the formed combination sword of any combination of above cutting way arranges formed a kind of from lowering the temperature centre drill or the counterbit of certainly lowering the temperature on centre drill or counterbit.
3. a kind of from lowering the temperature centre drill or the counterbit of certainly lowering the temperature as described in as arbitrary in claim 1-2, it is characterized in that: the shank that has taper shank or staight shank or polyhedron shape structure at described a kind of shank of tool from lower the temperature centre drill or the counterbit of certainly lowering the temperature at least.
4. a kind of from lowering the temperature centre drill or the counterbit of certainly lowering the temperature as described in as arbitrary in claim 1-2, it is characterized in that: the outside shank of described a kind of shank of tool from lower the temperature centre drill or the counterbit of certainly lowering the temperature or center, top and near be provided with at least one connector.
5. a kind of from lowering the temperature centre drill or the counterbit of certainly lowering the temperature as described in as arbitrary in claim 1-2, it is characterized in that: described from lowering the temperature centre drill or be provided with at least one Cooling Holes or cooling bath on the inwall of the shank of tool of the counterbit of lowering the temperature.
6. a kind of from lowering the temperature centre drill or the counterbit of certainly lowering the temperature as described in as arbitrary in claim 1-2, it is characterized in that: described a kind of from lowering the temperature centre drill or be provided with at least one cooling vent on the shank of tool of the counterbit of lowering the temperature.
7. a kind of from lowering the temperature centre drill or the counterbit of certainly lowering the temperature as described in as arbitrary in claim 1-4, it is characterized in that: described a kind of from lowering the temperature centre drill or on each cutting blade of the counterbit of lowering the temperature or the apex point of cutting cutter hub, from the position of tool axis the direction of front cutting edge toward the outer side, be formed with at least one-level cutting face protrudingly, at least platform is cut in the compound location of one-level, and one-level front cutting edge at least.
8. a kind of from lowering the temperature centre drill or the counterbit of certainly lowering the temperature as described in as arbitrary in claim 1-4, it is characterized in that: at described cutting blade or the cutting Huo Hou cutting face, cutting face of cutter hub and the cutting edge on fillet surface or a centering minute cutting blade, at least one recess sword or compound recess sword are set, 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.
9. a kind of from lowering the temperature centre drill or the counterbit of certainly lowering the temperature as described in as arbitrary in claim 1-4, it is characterized in that: on the cutterhead of described cutter, to run through this cutterhead and to be provided with alloy cutter head or Integral alloy cutterhead with respect to the centrosymmetric mode of end face, the mode that described alloy cutter head or Integral alloy cutterhead start to reduce highly gradually laterally from cutterhead axial centre is formed with one or more levels step.
10. a kind of from lowering the temperature centre drill or the counterbit of certainly lowering the temperature as described in as arbitrary in claim 1-4, it is characterized in that: on the cutterhead of described cutter to run through this cutterhead and to be folded with alloy cutter head with respect to the centrosymmetric mode of end face, the mode that described alloy cutter head starts to reduce highly gradually laterally from cutterhead axial centre is formed with one or more levels step, and is formed with stair-stepping cutting edge on rear cutting face or cutting face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310610984.0A CN103722222A (en) | 2013-11-26 | 2013-11-26 | Self-cooling center drill or self-cooling counter bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310610984.0A CN103722222A (en) | 2013-11-26 | 2013-11-26 | Self-cooling center drill or self-cooling counter bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103722222A true CN103722222A (en) | 2014-04-16 |
Family
ID=50446648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310610984.0A Pending CN103722222A (en) | 2013-11-26 | 2013-11-26 | Self-cooling center drill or self-cooling counter bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103722222A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108262504A (en) * | 2016-12-30 | 2018-07-10 | 李仕清 | A kind of centre drill |
| US20210354210A1 (en) * | 2020-05-12 | 2021-11-18 | Kennametal Inc. | Cutting tool and method for producing a cutting tool |
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| US4072438A (en) * | 1976-07-26 | 1978-02-07 | Trw Inc. | Insert type drill and insert therefor |
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| US20210354210A1 (en) * | 2020-05-12 | 2021-11-18 | Kennametal Inc. | Cutting tool and method for producing a cutting tool |
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