CN113263211A - Finish machining single-edge cutter - Google Patents
Finish machining single-edge cutter Download PDFInfo
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- CN113263211A CN113263211A CN202110405397.2A CN202110405397A CN113263211A CN 113263211 A CN113263211 A CN 113263211A CN 202110405397 A CN202110405397 A CN 202110405397A CN 113263211 A CN113263211 A CN 113263211A
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- 238000003754 machining Methods 0.000 title claims abstract description 26
- 238000005520 cutting process Methods 0.000 claims abstract description 139
- 238000001816 cooling Methods 0.000 claims abstract description 125
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 4
- 229910000997 High-speed steel Inorganic materials 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 2
- 239000000956 alloy Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 1
- 238000012545 processing Methods 0.000 description 8
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 239000000110 cooling liquid Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 229910052582 BN Inorganic materials 0.000 description 1
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 239000002173 cutting fluid Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C5/00—Milling-cutters
- B23C5/006—Details of the milling cutter body
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C5/00—Milling-cutters
- B23C5/02—Milling-cutters characterised by the shape of the cutter
- B23C5/10—Shank-type cutters, i.e. with an integral shaft
- B23C5/1081—Shank-type cutters, i.e. with an integral shaft with permanently fixed cutting inserts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C5/00—Milling-cutters
- B23C5/02—Milling-cutters characterised by the shape of the cutter
- B23C5/12—Cutters specially designed for producing particular profiles
- B23C5/14—Cutters specially designed for producing particular profiles essentially comprising curves
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C5/00—Milling-cutters
- B23C5/16—Milling-cutters characterised by physical features other than shape
- B23C5/165—Milling-cutters characterised by physical features other than shape with chipbreaking or chipdividing equipment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C5/00—Milling-cutters
- B23C5/16—Milling-cutters characterised by physical features other than shape
- B23C5/18—Milling-cutters characterised by physical features other than shape with permanently-fixed cutter-bits or teeth
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C5/00—Milling-cutters
- B23C5/28—Features relating to lubricating or cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2200/00—Details of milling cutting inserts
- B23C2200/32—Chip breaking or chip evacuation
- B23C2200/326—Chip breaking or chip evacuation by chip-breaking grooves
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2210/00—Details of milling cutters
- B23C2210/20—Number of cutting edges
- B23C2210/201—Number of cutting edges one
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2210/00—Details of milling cutters
- B23C2210/48—Chip breakers
- B23C2210/486—Chip breaking grooves or depressions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2220/00—Details of milling processes
- B23C2220/28—Finishing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2250/00—Compensating adverse effects during milling
- B23C2250/12—Cooling and lubrication
Abstract
The invention discloses a finish machining single-edge tool, which comprises a cutting part and a handle part; in the cutting part, only one chip groove is arranged; the rod-shaped body is provided with only one internal cooling hole which penetrates through two ends of the rod-shaped body, and the internal cooling hole extends from the bottom end of the cutting part to the free end of the handle part; and a plurality of jet cooling holes which are not communicated with the inner cooling holes are also arranged in the handle part, one end of each jet cooling hole is respectively communicated with the end head of the free end of the handle part, and the other end of each jet cooling hole is respectively communicated with the joint of the chip groove and the handle part. The invention can solve the problem of workpiece dimension out-of-tolerance or serious deformation easily occurring during deep cavity machining of a thin-wall workpiece, and can also solve the problems of sufficient cooling and efficient chip removal of the side edge and the bottom edge of the long-cutting-edge cutter.
Description
Technical Field
The invention relates to the technical field of cutters, in particular to a finish machining single-edge cutter for machining a deep cavity of a thin-wall workpiece.
Background
Cutting tools are tools used in machining for cutting work, and since tools used in machining are basically used for cutting metal materials, such tools are metal cutting tools. A cutting tool in the prior art adopts an integral structure, mainly is a rod-shaped body, the rod-shaped body is divided into two sections, one section is a cutting part, the cutting part comprises a cutting edge, the other section is a handle part, the handle part is usually set to be a clamping structure, and the handle part is clamped on a machine tool so as to realize mechanical processing. When the cutting tool is used for side wall metal cutting machining, the generated chips are often long, and chip accumulation and secondary cutting are easily caused, so that the discharge condition of the chips can greatly influence the machining performance of the tool.
Because the depth of cut parameter will generally be great when the lateral wall is processed, ordinary external cooling often can receive the sheltering from of work piece and can't be with coolant liquid injection cutting processing position, not only can reduce cutter processing cooling effect, still can influence the processing work piece surface quality. The prior art inner cooling tool generally uses bottom water discharge, i.e., water is sprayed at the end position of the cutting part (the bottom edge position or the position close to the bottom edge), which does not play a great role in solving the cooling problem of the side wall machining position.
The US patent document US6648561 discloses a design of grooving the shank of a cutting tool to achieve effective cooling of the tool and discharge of chips, but in actual use, the cutting fluid jet grooves of the shank abrade the clamping portion to reduce the clamping accuracy of the tool, and if a heat-shrinkable shank is used for clamping, the clamping accuracy of the shank is damaged due to local uneven heating, and the accuracy of the clamping device is reduced, thereby reducing the economy and safety of production.
Under the condition of only using the jet flow of the handle part, if the length of the cutting edge part of the cutter is too long, the problem that the bottom end of the cutter cannot be sufficiently cooled in the cutting process still exists. In addition, when the milling machining of the large-cutting-depth side wall of the extremely thin workpiece is carried out, no means for effectively controlling the thickness of the thin-wall workpiece exists in the market at present, and the thin-wall workpiece can generate larger cutting deformation, so that the machining size of the workpiece is influenced, the production qualified rate is reduced, and the great material waste is caused.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a finish machining single-edge tool, which can solve the problems of workpiece dimension over-tolerance or serious deformation easily caused during deep cavity machining of a thin-wall workpiece and the problems of sufficient cooling and efficient chip removal of a side edge and a bottom edge of a long-cutting-edge tool through structural improvement.
The technical scheme adopted by the invention for solving the technical problems is as follows: a finish machining single-edge tool comprises a rod-shaped body; the rod-shaped body is divided into a cutting part and a handle part, and the cutting part and the handle part are integrally connected in the middle of the rod-shaped body; the free end of the cutting part is set as a bottom end; the outer diameter of the cutting part is D; in the cutting part, only one chip removal groove is formed in a manner that the chip removal groove extends from the bottom end to the top end, the surface of the chip removal groove facing the cutting rotation direction is a front cutter surface, the front cutter surface is intersected with the outer peripheral surface of the cutting part to form a circumferential cutting edge, and the surface, connected with the cutting edge, in the outer peripheral surface of the cutting part is a rear cutter surface; the rear cutter surface extends from the bottom end of the cutting part to the handle part; the rod-shaped body is provided with only one internal cooling hole which penetrates through two ends of the rod-shaped body, and the internal cooling hole extends from the bottom end of the cutting part to the free end of the handle part; and a plurality of jet cooling holes which are not communicated with the inner cooling holes are also arranged in the handle part, one end of each jet cooling hole is respectively communicated with the end head of the free end of the handle part, and the other end of each jet cooling hole is respectively communicated with the joint of the chip groove and the handle part.
The bottom end of the cutting part is provided with a tooth space based on a chip removal groove, the surface of the tooth space facing the cutting rotation direction is a bottom end cutting edge front cutter surface, the bottom end cutting edge front cutter surface is intersected with the bottom end surface of the cutting part to form a bottom end cutting edge, and the bottom end surface of the cutting part is a bottom end cutting edge rear cutter surface; the water outlet position of the internal cooling hole is arranged on the rear cutter face or the tooth clearance of the bottom end cutting edge, and the circumferential cutting edge and the bottom end cutting edge are not interfered.
The inner cooling holes are straight inner cooling holes; the straight strip inner cooling hole is arranged at the central axis of the rod-shaped body and extends linearly from the end head of the free end of the handle part to the cutting part.
The internal cooling hole is a spiral internal cooling hole; distances from the circle centers of the positions of the spiral internal cooling holes to the central axis of the rod-shaped body are equal, so that the projections of the circle centers of the positions of the spiral internal cooling holes on a reference plane perpendicular to the central axis are on the same virtual circle, the diameter of the virtual circle is a, and a is not less than 0.4D and not more than 0.95D.
The distances from the circle centers of the jet cooling holes to the central axis of the rod-shaped body are equal, so that the circle centers of the jet cooling holes are located on the same virtual circle, the diameter of the virtual circle is b, b is more than or equal to 0.7D and less than or equal to 0.95D, and b is more than or equal to a.
The diameter of the spiral inner cooling hole is D1, and D1 is more than 0 and less than or equal to 0.15D; the diameter of the jet flow cooling hole is D2, and D2 is more than 0 and less than or equal to 0.15D.
The distance from the groove bottom of the chip groove to the central axis of the rod-shaped body is r, r is more than or equal to 0.25D and less than or equal to 0.45D, b is more than 2r, and when a is more than or equal to 2r, the spiral internal cooling hole extends along the inner part of the cutting circumferential cutting edge.
The plurality of jet flow cooling holes are straight strip-shaped holes respectively; the straight strip-shaped hole extends from the end head of the free end of the handle part to the cutting part in a straight line.
The plurality of jet flow cooling holes are respectively spiral holes; the spiral hole extends in a spiral line from the end head of the free end of the handle part to the cutting part.
The rod-shaped body is made of one or more materials of high-speed steel, hard alloy, CBN and PCD.
Compared with the prior art, the invention has the beneficial effects that:
the cutting part is spirally extended from the bottom end to the top end to form only one chip groove, and the rod-shaped body is internally provided with only one internal cooling hole penetrating through two ends of the rod-shaped body, wherein the internal cooling hole extends from the bottom end of the cutting part to the free end of the handle part; and a plurality of jet cooling holes which are not communicated with the inner cooling holes are also arranged in the handle part, one end of each jet cooling hole is respectively communicated with the end head of the free end of the handle part, and the other end of each jet cooling hole is respectively communicated with the joint of the chip groove and the handle part. The structure of the invention has the advantages that firstly, the design of the single-edge cutting edge is adopted, and the single-edge design can effectively increase the chip containing space of the cutter, so that the cooling liquid can fully infiltrate the cutting position in the cutting process, and the chip containing capacity of the cutter is improved; the single-edge design also reduces the contact length between the cutter and the workpiece, and effectively reduces the cutting force on the workpiece in the machining process of the cutter, thereby inhibiting the deformation of the workpiece and controlling the machining size of the workpiece; secondly, the combination of the shank jet hole and the internal cooling structure of the bottom water outlet is adopted, the jet cooling hole can directly wash away the chips generated during the machining and cutting of the side wall, and the internal cooling structure of the bottom water outlet can fully cool the bottom cutting edge of the cutting tool and discharge the chips; the structure of the jet cooling hole can ensure the stability and precision of the processing and clamping of the cutting tool and protect the tool clamping equipment; the whole internal cooling structure can realize economy and environmental protection of cutting, processing and cooling, and can improve the machinability of the cutter; the invention can solve the problem of workpiece dimension out-of-tolerance or serious deformation easily occurring during deep cavity machining of a thin-wall workpiece, and can also solve the problems of sufficient cooling and efficient chip removal of the side edge and the bottom edge of the long-cutting-edge cutter.
The invention is further explained in detail with the accompanying drawings and the embodiments; a finishing single-edged tool of the present invention is not limited to the embodiment.
Drawings
FIG. 1 is a schematic perspective view of a first embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a first embodiment of the present invention;
FIG. 3 is a view from the direction A in FIG. 2;
FIG. 4 is a schematic structural view of a first embodiment of the present invention (showing the structure of the inner cooling holes and the jet cooling holes);
FIG. 5 is a sectional view taken along line B-B of FIG. 4;
FIG. 6 is a sectional view taken along line C-C of FIG. 4;
FIG. 7 is a schematic structural view of a second embodiment of the present invention (showing the structure of the inner cooling holes and the jet cooling holes);
FIG. 8 is a sectional view taken along line E-E of FIG. 7;
FIG. 9 is a schematic structural view of a third embodiment of the present invention (showing the structure of the inner cooling holes and the jet cooling holes);
FIG. 10 is a sectional view taken along line F-F in FIG. 9;
FIG. 11 is a schematic structural view of a fourth embodiment of the present invention (showing the structure of the inner cooling holes and the jet cooling holes);
fig. 12 is a sectional view taken along line G-G in fig. 11.
In the figure: 10. a rod-shaped body; 1. a cutting portion; 2. a handle; 3. a chip groove; 4. a peripheral cutting edge rake face; 5. a circumferential cutting edge; 6. a circumferential cutting edge relief; 7. backlash; 8. a bottom end cutting edge rake face; 9. a bottom end cutting edge; 11. a bottom end cutting edge rear cutter face; 12. an internal cooling hole; 13. a jet cooling hole; 14. a conical water inlet; 15. the water outlet position of the internal cooling hole.
Detailed Description
Example one
Referring to fig. 1 to 6, a finishing single-edged tool of the invention comprises a rod-shaped body 10; the rod-shaped body 10 is divided into a cutting part 1 and a handle part 2, and the cutting part 1 and the handle part 2 are integrally connected at the middle position of the rod-shaped body 10; the free end of the cutting part 1 is set as a bottom end; in the cutting part 1, only one chip groove 3 is spirally extended from the bottom end to the top end, the surface of the chip groove 3 facing the cutting rotation direction is a rake surface 4, the rake surface 4 and the peripheral surface of the cutting part 1 are intersected to form a circumferential cutting edge 5, and the surface of the peripheral surface of the cutting part 1, which is in contact with the cutting edge 5, is a flank surface 6; the rear tool face 6 extends from the bottom end of the cutting part to the handle part 2; the rod-shaped body 10 is provided with only one internal cooling hole 12 which penetrates through two ends of the rod-shaped body, and the internal cooling hole 12 extends from the bottom end of the cutting part 1 to the free end of the handle part 2; a plurality of jet cooling holes 13 which are not communicated with the internal cooling hole 12 are further formed in the handle part 2, one end of each jet cooling hole 13 is respectively communicated with the end of the free end of the handle part 2, and the other end of each jet cooling hole 13 is respectively communicated with the joint of the chip groove 3 and the handle part 2; the cutting portion 1 has an outer diameter D. In this embodiment, the free end of the cutting part 1 is the bottom of the tool, and the free end of the shank 2 is the top of the tool.
The jet cooling holes 13 of the present embodiment are three.
In this embodiment, the bottom end of the cutting portion 1 is provided with a tooth space 7 based on the chip groove 3, a surface of the tooth space 7 facing the cutting rotation direction is a bottom end cutting edge rake surface 8, the bottom end cutting edge rake surface 8 intersects with the bottom end surface of the cutting portion 1 to form a bottom end cutting edge 9, and the bottom end surface of the cutting portion is a bottom end cutting edge flank surface 11; the water outlet position 15 of the internal cooling hole 12 is arranged on the bottom end cutting edge rear cutter face 8 or the tooth clearance 7 and does not interfere with the circumferential cutting edge 5 and the bottom end cutting edge 9.
In this embodiment, the internal cooling hole 12 is a spiral internal cooling hole; distances from the circle centers of the positions of the spiral inner cooling holes 12 to the central axis of the rod-shaped body 10 are equal, so that the projections of the circle centers of the positions of the spiral inner cooling holes 12 on a reference plane perpendicular to the central axis are on the same virtual circle, the diameter of the virtual circle is a, and a is not less than 0.4D and not more than 0.95D. If the diameter a is too small, interference between the inner cooling holes is likely to occur, and if the diameter a is too large, the cutting jet cooling hole is likely to be broken at the time of clamping.
In this embodiment, the distances from the centers of the jet cooling holes 13 to the central axis of the rod-shaped body 10 are equal, so that the centers of the jet cooling holes 13 are located on the same virtual circle, the diameter of the virtual circle is b, and b is greater than or equal to 0.7D and less than or equal to 0.95D, and a is b. If the distance b is too small, the jet cooling hole is likely to interfere with the cutting edge of the tool, and if the distance b is too large, the cutting jet cooling hole is likely to be broken during clamping.
In this embodiment, the plurality of jet cooling holes 13 are respectively spiral holes; the spiral hole 13 extends spirally from the end of the free end of the shank 2 to the cutting part 1.
In the embodiment, the diameter of the spiral inner cooling hole 12 is D1, and D1 is more than 0 and less than or equal to 0.15D; the diameter of the jet flow cooling hole 13 is D2, and D2 is more than 0 and less than or equal to 0.15D. If the diameters of the spiral inner cooling hole and the jet flow cooling hole are too large, the strength of the tool is extremely likely to be reduced.
In the embodiment, the distance from the groove bottom of the chip groove 3 to the central axis of the rod-shaped body is r, r is more than or equal to 0.25D and less than or equal to 0.45D, and b is more than 2r, and when a is more than or equal to 2r, the spiral internal cooling hole 12 extends along the inner part of the cutting circumferential cutting edge. If the distance r is too small, the strength of the cutting part of the cutter is obviously reduced, and if the distance r is too large, the setting difficulty of the jet hole of the handle part is increased, and the cutter cannot be sufficiently cooled.
In this embodiment, the rod-shaped body 10 is made of one or more materials selected from high-speed steel, cemented carbide, CBN (cubic boron nitride) and PCD (polycrystalline diamond).
The invention relates to a finish machining single-edge cutter, which adopts the technical scheme that only one chip groove 2 is spirally extended from the bottom end to the top end in a cutting part 1, only one internal cooling hole 12 penetrating through two ends of a rod-shaped body is arranged in the rod-shaped body 10, and the internal cooling hole 12 is extended from the bottom end of the cutting part to the free end of a handle part 2; and a plurality of jet cooling holes 13 which are not communicated with the inner cooling holes are also arranged in the handle part 2, one end of each jet cooling hole 13 is respectively communicated with the end head of the free end of the handle part 2, and the other end of each jet cooling hole 13 is respectively communicated with the joint of the chip groove 3 and the handle part 2. The structure of the invention has the advantages that firstly, the design of the single-edge cutting edge is adopted, and the single-edge design can effectively increase the chip containing space of the cutter, so that the cooling liquid can fully infiltrate the cutting position in the cutting process, and the chip containing capacity of the cutter is improved; the single-edge design also reduces the contact length between the cutter and the workpiece, and effectively reduces the cutting force on the workpiece in the machining process of the cutter, thereby inhibiting the deformation of the workpiece and controlling the machining size of the workpiece; secondly, the combination of the shank jet hole and the internal cooling structure of the bottom water outlet is adopted, the jet cooling hole can directly wash away the chips generated during the machining and cutting of the side wall, and the internal cooling structure of the bottom water outlet can fully cool the bottom cutting edge of the cutting tool and discharge the chips; the structure of the jet cooling hole can ensure the stability and precision of the processing and clamping of the cutting tool and protect the tool clamping equipment; the whole internal cooling structure can realize economy and environmental protection of cutting, processing and cooling, and can improve the machinability of the cutter; the invention can solve the problem of workpiece dimension out-of-tolerance or serious deformation easily occurring during deep cavity machining of a thin-wall workpiece, and can also solve the problems of sufficient cooling and efficient chip removal of the side edge and the bottom edge of the long-cutting-edge cutter.
Example two
Referring to fig. 7 to 8, a finishing single-edge tool according to the present invention is different from the first embodiment in that the jet cooling hole 13 is also one and is located at a symmetrical position with respect to the central axis of the rod-shaped body 10 with respect to the inner cooling hole 12.
EXAMPLE III
Referring to fig. 9 to 10, a finishing single-edge tool of the present invention is different from the first embodiment in that the inner cold hole 12 is a straight inner cold hole; the straight bar inner cold hole 12 is arranged at the central axis of the rod-shaped body and extends from the end head of the free end of the handle part 2 to the cutting part 1 in a straight line.
The jet cooling hole 13 of the present embodiment is one.
In this embodiment, the free end of the handle 2 is provided with a tapered water inlet 14 connected to the water inlet end of the straight inner cooling hole 12.
Example four
Referring to fig. 11 to 12, a finishing single-edge tool according to the present invention is different from the first embodiment in that the inner cooling hole 12 is a straight inner cooling hole; the straight bar inner cold hole 12 is arranged at the central axis of the rod-shaped body and extends from the end head of the free end of the handle part 2 to the cutting part 1 in a straight line.
The jet cooling holes 13 of the present embodiment are two. The two jet cooling holes 13 are straight-bar-shaped holes respectively; the straight hole 13 extends linearly from the end of the free end of the shank 2 toward the cutting portion.
In this embodiment, the free end of the handle 2 is provided with a tapered water inlet 14 connected to the water inlet end of the straight inner cooling hole 12.
The foregoing is considered as illustrative of the preferred embodiments of the invention and is not to be construed as limiting the invention in any way. Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make many possible variations and modifications to the disclosed embodiments, or equivalent modifications, without departing from the scope of the disclosed embodiments. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should fall within the protection scope of the technical scheme of the present invention, unless the technical spirit of the present invention departs from the content of the technical scheme of the present invention.
Claims (10)
1. A finish machining single-edge tool comprises a rod-shaped body; the rod-shaped body is divided into a cutting part and a handle part, and the cutting part and the handle part are integrally connected in the middle of the rod-shaped body; the free end of the cutting part is set as a bottom end; the outer diameter of the cutting part is D; the method is characterized in that: in the cutting part, only one chip removal groove is spirally extended from the bottom end to the top end, the surface of the chip removal groove facing to the cutting rotation direction is a front cutter surface, the front cutter surface and the peripheral surface of the cutting part are intersected to form a circumferential cutting edge, and the surface of the peripheral surface of the cutting part, which is connected with the cutting edge, is a rear cutter surface; the rear cutter surface extends from the bottom end of the cutting part to the handle part; the rod-shaped body is provided with only one internal cooling hole which penetrates through two ends of the rod-shaped body, and the internal cooling hole extends from the bottom end of the cutting part to the free end of the handle part; and a plurality of jet cooling holes which are not communicated with the inner cooling holes are also arranged in the handle part, one end of each jet cooling hole is respectively communicated with the end head of the free end of the handle part, and the other end of each jet cooling hole is respectively communicated with the joint of the chip groove and the handle part.
2. The finishing single-edged tool as set forth in claim 1, wherein: the bottom end of the cutting part is provided with a tooth space based on a chip removal groove, the surface of the tooth space facing the cutting rotation direction is a bottom end cutting edge front cutter surface, the bottom end cutting edge front cutter surface is intersected with the bottom end surface of the cutting part to form a bottom end cutting edge, and the bottom end surface of the cutting part is a bottom end cutting edge rear cutter surface; the water outlet position of the internal cooling hole is arranged on the rear cutter face or the tooth clearance of the bottom end cutting edge, and the circumferential cutting edge and the bottom end cutting edge are not interfered.
3. A finishing single-edged tool as set forth in claim 2, wherein: the inner cooling holes are straight inner cooling holes; the straight strip inner cooling hole is arranged at the central axis of the rod-shaped body and extends linearly from the end head of the free end of the handle part to the cutting part.
4. A finishing single-edged tool as set forth in claim 2, wherein: the internal cooling hole is a spiral internal cooling hole; distances from the circle centers of the positions of the spiral internal cooling holes to the central axis of the rod-shaped body are equal, so that the projections of the circle centers of the positions of the spiral internal cooling holes on a reference plane perpendicular to the central axis are on the same virtual circle, the diameter of the virtual circle is a, and a is not less than 0.4D and not more than 0.95D.
5. The finishing single-edged tool of claim 4, wherein: the distances from the circle centers of the jet cooling holes to the central axis of the rod-shaped body are equal, so that the circle centers of the jet cooling holes are located on the same virtual circle, the diameter of the virtual circle is b, b is more than or equal to 0.7D and less than or equal to 0.95D, and b is more than or equal to a.
6. The finishing single-edged tool of claim 5, wherein: the diameter of the spiral inner cooling hole is D1, and D1 is more than 0 and less than or equal to 0.15D; the diameter of the jet flow cooling hole is D2, and D2 is more than 0 and less than or equal to 0.15D.
7. The finishing single-edged tool of claim 4, wherein: the distance from the groove bottom of the chip groove to the central axis of the rod-shaped body is r, r is more than or equal to 0.25D and less than or equal to 0.45D, b is more than 2r, and when a is more than or equal to 2r, the spiral internal cooling hole extends along the inner part of the cutting circumferential cutting edge.
8. The finishing single-edged tool of claim 5, wherein: the plurality of jet flow cooling holes are straight strip-shaped holes respectively; the straight strip-shaped hole extends from the end head of the free end of the handle part to the cutting part in a straight line.
9. The finishing single-edged tool of claim 5, wherein: the plurality of jet flow cooling holes are respectively spiral holes; the spiral hole extends in a spiral line from the end head of the free end of the handle part to the cutting part.
10. The finishing single-edged tool as set forth in claim 1, wherein: the rod-shaped body is made of one or more materials of high-speed steel, hard alloy, CBN and PCD.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110405397.2A CN113263211A (en) | 2021-04-15 | 2021-04-15 | Finish machining single-edge cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110405397.2A CN113263211A (en) | 2021-04-15 | 2021-04-15 | Finish machining single-edge cutter |
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| US4826364A (en) * | 1986-08-27 | 1989-05-02 | Stellram S.A. | One-piece rotary material removing tool of sintered hard metal |
| JP2003285220A (en) * | 2002-03-28 | 2003-10-07 | Toshiba Tungaloy Co Ltd | End mill with oil hole |
| US20050084351A1 (en) * | 2001-08-29 | 2005-04-21 | Arno Friedrichs | Rod-shaped tool for machining a workpiece |
| JP2010264533A (en) * | 2009-05-13 | 2010-11-25 | Osg Corp | Small diameter rotary tool with fluid supplying hole |
| JP2012200836A (en) * | 2011-03-28 | 2012-10-22 | Mitsubishi Materials Corp | End mill with coolant hole |
| CN203830815U (en) * | 2014-04-21 | 2014-09-17 | 常熟量具刃具厂 | Spiral inner-cooling end milling cutter |
| CN205816906U (en) * | 2016-07-14 | 2016-12-21 | 苏州瑞森硬质合金有限公司 | The carbide tool that a kind of easy chip removal easily cools down |
| CN209174978U (en) * | 2018-12-20 | 2019-07-30 | 山东工具制造有限公司 | A kind of CNC milling cutter structure |
| CN112548178A (en) * | 2019-09-10 | 2021-03-26 | 弗兰肯精密工具厂有限责任两合公司 | Milling tool with cooling channels |
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2021
- 2021-04-15 CN CN202110405397.2A patent/CN113263211A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4826364A (en) * | 1986-08-27 | 1989-05-02 | Stellram S.A. | One-piece rotary material removing tool of sintered hard metal |
| US20050084351A1 (en) * | 2001-08-29 | 2005-04-21 | Arno Friedrichs | Rod-shaped tool for machining a workpiece |
| JP2003285220A (en) * | 2002-03-28 | 2003-10-07 | Toshiba Tungaloy Co Ltd | End mill with oil hole |
| JP2010264533A (en) * | 2009-05-13 | 2010-11-25 | Osg Corp | Small diameter rotary tool with fluid supplying hole |
| JP2012200836A (en) * | 2011-03-28 | 2012-10-22 | Mitsubishi Materials Corp | End mill with coolant hole |
| CN203830815U (en) * | 2014-04-21 | 2014-09-17 | 常熟量具刃具厂 | Spiral inner-cooling end milling cutter |
| CN205816906U (en) * | 2016-07-14 | 2016-12-21 | 苏州瑞森硬质合金有限公司 | The carbide tool that a kind of easy chip removal easily cools down |
| CN209174978U (en) * | 2018-12-20 | 2019-07-30 | 山东工具制造有限公司 | A kind of CNC milling cutter structure |
| CN112548178A (en) * | 2019-09-10 | 2021-03-26 | 弗兰肯精密工具厂有限责任两合公司 | Milling tool with cooling channels |
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