CN112207336A - Milling cutter - Google Patents
Milling cutter Download PDFInfo
- Publication number
- CN112207336A CN112207336A CN202010885802.0A CN202010885802A CN112207336A CN 112207336 A CN112207336 A CN 112207336A CN 202010885802 A CN202010885802 A CN 202010885802A CN 112207336 A CN112207336 A CN 112207336A
- Authority
- CN
- China
- Prior art keywords
- side edge
- edge surface
- cutter
- knife
- particle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C5/00—Milling-cutters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2210/00—Details of milling cutters
- B23C2210/04—Angles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2210/00—Details of milling cutters
- B23C2210/08—Side or top views of the cutting edge
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Milling Processes (AREA)
Abstract
The application relates to a milling cutter, which comprises a cutter bar and a cutter particle connected to one end of the cutter bar, wherein the end surface of the cutter particle, which is back to the cutter bar, is provided with two blade surfaces which are arranged at an included angle, and a bottom edge is formed at the joint between the two blade surfaces; the bottom edge and the cutter bar are arranged in an obtuse angle, and the orthographic projection point of the rotation axis of the cutter bar is in a circle with the bottom edge as the diameter; the end part of the knife particle with the bottom edge is reduced to the other end; at least one side wall of the knife particle connected with the blade forming surface is sunken towards the inner part of the knife particle relative to at least one side wall of other knife particles, and the knife particle penetrates through the knife particle along the length direction of the knife particle to form a chip containing space. This application has the effect that can smoothly process the grinding apparatus.
Description
Technical Field
The application relates to the field of cutters for machining, in particular to a milling cutter.
Background
In recent years, as the manufacture of grinding tools has been advanced, the hardness and wear resistance of materials used for the parts of the grinding tools have been improved, and as the grinding tools have to be processed into desired shapes, superhard cutter materials such as CBN cubic boron nitride, PCD polycrystalline diamond cutters, and new hard cutters have been used in large quantities. However, the cemented carbide abrasive tools are more difficult to process, so the cemented carbide abrasive tools are mostly processed by laser, a PCD grinding rod or a PCD polycrystalline diamond cutter.
Because the laser processing surface effect and occasion are greatly limited, the efficiency, service life and stability of the PCD grinding rod are low.
Disclosure of Invention
In order to efficiently process holes on a hard alloy grinding tool, a milling cutter is provided.
The application provides a milling cutter adopts following technical scheme:
a milling cutter comprises a cutter bar and a cutter particle connected to one end of the cutter bar, wherein two blade surfaces arranged at an included angle are arranged on the end surface of the cutter particle, which is back to the cutter bar, and a bottom edge is formed at the joint between the two blade surfaces;
the bottom edge and the cutter bar are arranged in an obtuse angle, and the orthographic projection point of the rotation axis of the cutter bar is in a circle with the bottom edge as the diameter;
the end part of the knife particle with the bottom edge is reduced to the other end;
at least one side wall of the knife particle connected with the blade forming surface is sunken towards the inner part of the knife particle relative to at least one side wall of other knife particles, and the knife particle penetrates through the knife particle along the length direction of the knife particle to form a chip containing space.
By adopting the technical scheme, because the bottom blade and the cutter bar are arranged at an obtuse angle, one end of the bottom blade can be firstly contacted with a workpiece in the actual processing process; along with the rotation of the cutter, because the orthographic projection point of the rotation axis of the cutter bar is in a circle with the bottom edge as the diameter, the bottom edge can be gradually and completely abutted against the workpiece, and the rotating bottom edge can form a circular cutting area, and the purpose of processing a hole on the workpiece is realized along with the downward movement of the cutter particles; because the processing object is hard alloy with high hardness and wear resistance, the scraps generated in the hole processing process also have similar properties of high hardness, high wear resistance and the like, when the scraps are accumulated in the processing space, particularly in the cutting area of the bottom edge, the resistance of the bottom edge is increased, the processing efficiency is influenced, meanwhile, the scraps can rotate along with the cutter particles and scratch grinding marks in the processed area, so that two blade forming surfaces form an included angle, then the end part of the cutter particle with the bottom edge is reduced towards the other end, namely, the end, back to the cutter rod, of the cutter particle is thicker than the other end on the whole from the whole outline of the cutter particle, and the scraps cut by the bottom edge can smoothly move upwards from the cutting area of the bottom edge and enter the scraps containing space by matching with the scraps penetrating through the cutter particle along the length direction, the new scraps are gradually extruded to the outside along with the deepening of the cutter particles, so that the influence of the scraps on the machining process and the cutter is reduced. In addition, the scheme has low requirements on the processing technology, is convenient to process and has high processing efficiency.
Preferably, the included angle between the bottom edge and the cutter bar is greater than 90 degrees and less than or equal to 95 degrees.
By adopting the technical scheme, the cutter bars are vertically arranged under the common condition, so that the included angle between the bottom edge and the cutter bar determines the included angle between the bottom edge and the plane to be processed, and experiments show that when the included angle between the bottom edge and the plane to be processed exceeds 5 degrees, the cutter breakage phenomenon frequently occurs in the hole processing process and becomes more frequent along with the increase of the number of the included angle between the bottom edge and the plane to be processed; when the included angle between the bottom edge and the plane to be processed is less than 1 degree, the time of the hole processing process is obviously increased, and the speed of increasing the hole depth is obviously slowed down; therefore, in order to ensure the strength of the bottom blade and reduce the resistance of the bottom blade when the workpiece to be machined is cut, the angle between the bottom blade and the plane to be machined is set to be 1-5 degrees.
Preferably, the two blade surfaces have the same profile and area.
By adopting the technical scheme, the two blade forming surfaces are arranged at an included angle, and a space for containing the scraps is formed between the two blade forming surfaces and the plane to be processed in the processing process, so that the two blade forming surfaces are arranged in the shapes with the same area and contour, so that the scraps generated on two sides of the bottom edge can be contained and collected and discharged through the scrap containing space; two size, the obvious different one-tenth blade surfaces of profile can lead to the end sword both sides to be used for holding the space size of sweeps and have obvious difference, produce the condition that end sword one side gathered the sweeps easily in the course of working, can cause the resistance to the cutting of end sword, can cause wearing and tearing to the inner wall in the hole of processing completion simultaneously.
Preferably, the two edge forming surfaces are arranged symmetrically with the bottom edge as an axis.
Through adopting above-mentioned technical scheme, the ability that becomes the blade face that the symmetric distribution makes the space of end sword both sides hold the sweeps is close, has reduced the possibility of end sword one side long-pending bits for the end sword can be smooth and easy carry out spot facing work, has reduced long-pending bits simultaneously and has caused the possibility of downthehole wall fish tail.
Preferably, the knife particles are cylindrical, and the chip containing spaces are two and are respectively arranged on two sides of the bottom edge.
Through adopting above-mentioned technical scheme, will hold the bits space setting in end sword both sides, can make the smooth and easy entering of sweeps that end sword both sides (two become blade face departments promptly) held hold the bits space inside, and be discharged to the external world along with the propulsion of processing process, cylindric sword grain still has two parts to be the lateral wall of curved surface after seting up two and holding the bits spaces simultaneously, the lateral wall through the sword grain can extrude the inner wall in the upper portion hole of processing completion, make the circularity in the hole after the processing completion higher, in addition, owing to reduced because the downthehole machining error that the cutter beated and lead to in the hole course of working.
Preferably, the number of the chip containing spaces is four, the four chip containing spaces are distributed on two sides of the bottom edge in a group in pairs, and the four chip containing spaces divide the cutter grains into prismatic structures.
By adopting the technical scheme, the four accommodating spaces can accommodate more scraps on two sides of the bottom blade, and meanwhile, the scraps on two sides of the bottom blade can enter the accommodating spaces more smoothly; in addition, because the cutter particles jump in the hole machining process, the roundness of the machined hole can be relatively common, and in the scheme, the cutter particles are divided into the prism shape by the four accommodating spaces, so that the side edges of the prism-shaped cutter particles can finish machining the inner wall of the machined hole, namely, secondary cutting and grinding are carried out on the part with poor roundness, and the roundness of the machined hole is higher.
Preferably, the four chip containing spaces divide the side wall of the knife grain into four planes: the first side edge face, the second side edge face, the third side edge face and the fourth side edge face; the second side edge surface and the fourth side edge surface are respectively connected to two sides of the first side edge surface, an acute angle is formed between the second side edge surface and the first side edge surface, and an obtuse angle is formed between the fourth side edge surface and the first side edge surface; the second side edge face and the fourth side edge face are respectively connected to two sides of the third side edge face, the third side edge face is parallel to the first side edge face, and the second side edge face is parallel to the fourth side edge face.
Through adopting above-mentioned technical scheme, because acute angle setting between second side flank and the first side flank, the obtuse angle setting between fourth side flank and the first side flank, so can leave more spaces between fourth side flank and the first side flank and hold the sweeps to supply the sweeps outwards to discharge, further improved the chip removal effect.
Preferably, the included angle between the second side edge face and the first side edge face is greater than 90 degrees and less than or equal to 120 degrees.
By adopting the technical scheme, the larger the included angle between the second side edge surface and the first side edge surface is, the flatter the cutter particles forming the four chip containing spaces are, and compared with the cutter particles with the smaller included angle between the second side edge surface and the first side edge surface, the flat cutter particles have the advantages of large space for discharging waste chips, small cutting resistance and low strength, and are easy to break off in the working process; otherwise, the strength is high, but the space for discharging the waste chips is small, so that after the strength, the smoothness of chip removal and the cutting resistance are balanced through transverse comparison of research and development personnel, the angle range which can ensure that the cutter particles can cut smoothly and can ensure that the cutter particles have enough strength is selected.
Preferably, a first side edge is formed at the joint between the first side edge face and the fourth side edge face, a second side edge is formed at the joint between the third side edge face and the second side edge face, and the included angle between the first side edge and the second side edge is greater than or equal to 10 'and less than or equal to 30'.
By adopting the technical scheme, the larger the included angle between the second side edge and the first side edge is, the thinner the part of the cutter particle close to the cutter handle is, and compared with the cutter particle with the smaller included angle between the second side edge and the first side edge, the cutter particle has the advantages of large space for discharging waste chips, small cutting resistance, low strength and easy breakage in the working process; otherwise, the strength is high, but the space for discharging the waste chips is small, so that after the strength, the smoothness of chip removal and the cutting resistance are balanced through transverse comparison of research and development personnel, the angle range which can ensure that the cutter particles can cut smoothly and can ensure that the cutter particles have enough strength is selected.
In summary, the present application includes at least one of the following beneficial technical effects:
1. because the bottom edge and the cutter bar form an obtuse angle, one end of the bottom edge can be firstly contacted with a workpiece in the actual processing process; along with the rotation of the cutter, because the orthographic projection point of the rotation axis of the cutter bar is in a circle with the bottom edge as the diameter, the bottom edge can be gradually and completely abutted against the workpiece, and the rotating bottom edge can form a circular cutting area, and the purpose of processing a hole on the workpiece is realized along with the downward movement of the cutter particles; because the processing object is hard alloy with high hardness and wear resistance, the scraps generated in the hole processing process also have similar properties of high hardness, high wear resistance and the like, when the scraps are accumulated in the processing space, particularly in the cutting area of the bottom edge, the resistance of the bottom edge is increased, the processing efficiency is influenced, meanwhile, the scraps can rotate along with the cutter particles and scratch grinding marks in the processed area, so that two blade forming surfaces form an included angle, then the end part of the cutter particle with the bottom edge is reduced towards the other end, namely, the end, back to the cutter rod, of the cutter particle is thicker than the other end on the whole from the whole outline of the cutter particle, and the scraps cut by the bottom edge can smoothly move upwards from the cutting area of the bottom edge and enter the scraps containing space by matching with the scraps penetrating through the cutter particle along the length direction, the new scraps are gradually extruded to the outside along with the deepening of the cutter particles, so that the influence of the scraps on the machining process and the cutter is reduced. In addition, the scheme has low requirements on the processing technology, is convenient to process and has high processing efficiency;
2. the larger the included angle between the second side edge surface and the first side edge surface is, the flatter the cutter particles forming four chip containing spaces are, and compared with the cutter particles with the smaller included angle between the second side edge surface and the first side edge surface, the flat cutter particles have the advantages of large space for discharging waste chips, small cutting resistance, low strength and easy breakage in the working process; otherwise, the strength is high, but the space for discharging the waste chips is small, so that after the transverse comparison of research and development personnel, after the strength, the smoothness of chip removal and the cutting resistance are balanced, the angle range which can ensure that the cutter particles can cut smoothly and have enough strength is selected;
3. the four accommodating spaces can accommodate more scraps on two sides of the bottom blade, and meanwhile, the scraps on two sides of the bottom blade can enter the accommodating spaces more smoothly; in addition, because the cutter particles jump in the hole machining process, the roundness of the machined hole can be relatively common, and in the scheme, the cutter particles are divided into the prism shape by the four accommodating spaces, so that the side edges of the prism-shaped cutter particles can finish machining the inner wall of the machined hole, namely, secondary cutting and grinding are carried out on the part with poor roundness, and the roundness of the machined hole is higher.
Drawings
Fig. 1 is an isometric view of embodiment one.
Fig. 2 is a schematic view illustrating a mounting manner of a cutter particle and a cutter bar in the first embodiment.
FIG. 3 is a schematic view showing the spatial positions of the chips according to the first embodiment.
FIG. 4 is a schematic diagram of the second embodiment.
Description of reference numerals: 1. a cutter bar; 11. blind holes; 2. cutting grains; 21. a blade body; 22. a cutter head; 23. a first side facet; 231. a first side edge; 24. a second side facet; 241. a second side edge; 25. a third side facet; 26. a fourth side facet; 27. a bottom edge; 28. forming a blade surface; 29. a chip containing space; 3. a workpiece; 31. and (5) processing a hole.
Detailed Description
The present application is described in further detail below with reference to the attached drawings.
The embodiment of the application discloses a milling cutter.
Referring to fig. 1 and 2, the milling cutter includes a long straight rod-shaped cutter bar 1 and a cutter particle 2 located at one end of the cutter bar 1, a blind hole 11 arranged along the axis of the cutter bar 1 is formed inside the cutter bar 1, one end of the cutter particle 2 is inserted into the blind hole 11 and is brazed with the cutter bar 1 to realize connection, and the other end of the cutter particle is located outside the blind hole 11 and is used for hole machining. The cutter grain 2 comprises a cutter body 21 inserted and welded with the blind hole 11 and a cutter head 22 positioned outside the blind hole 11.
The bottom end of the tool bit 22 is provided with two angled cutting surfaces 28, the joint between the two angled cutting surfaces 28 forms a long straight bottom edge 27, the bottom edge 27 is the bottom side of the tool bit 22, and the bottom edge 27 and the axis of the tool bar 1 are arranged at an angle of 93 ° (in other embodiments, the bottom edge 27 and the axis of the tool bar 1 may also be arranged at an angle of 91 °, 92 °, 94 °, or 95 °).
The cutting head 22 in this embodiment has four side walls, a first side edge 23, a second side edge 24, a third side edge 25 and a fourth side edge 26, in addition to two cutting edges 28. The first side edge surface 23 and the second side edge surface 24 are arranged at an included angle of 91 ° (in other embodiments, the included angle between the first side edge surface 23 and the second side edge surface 24 may also be 93 °, 96 °, 100 °, or 120 °), a long and straight first side edge 231 is formed at a connection position between the first side edge surface 23 and the fourth side edge surface 26, an included angle of 89 ° is formed between the second side edge surface 24 and the third side edge surface 25 (in other embodiments, the included angle between the second side edge surface 24 and the third side edge surface 25 may also be 60 °, 80 °, 84 °, or 87 °), and a long and straight second side edge 241 is formed at a connection position between the second side edge surface 24 and the third side edge surface 25.
In the present embodiment, the first side edge 231 and the second side edge 241 are both disposed at an angle of 10 ' to the axis of the holder 27 (in other embodiments, the angle between the first side edge 231 and the second side edge 241 may be 5 ' or 15 '), that is, the tip 22 is disposed so as to be reduced in diameter from the end portion thereof away from the holder 1 to the other end, and the tip 22 is formed in a truncated pyramid shape having a bottom surface opened as a cutting edge surface 28. Meanwhile, an included angle between the first side edge 231 and the axis of the tool bar 1 is a, an included angle between the second side edge 241 and the axis of the tool bar 1 is b, and a = -b. The arrangement can form a space between the part of the cutter head 22 above the bottom edge 27 and the inner wall of the hole to be machined 31, reduce the possibility that scraps generated by cutting the bottom edge 27 are clamped between the hole to be machined 31 and the cutter head 22, and facilitate the discharge of the scraps.
The first side edge surface 23 and the third side edge surface 25 are parallel and have the same area, the second side edge surface 24 and the fourth side edge surface 26 are parallel and have the same area, the bottom sides of the first side edge surface 23 and the second side edge surface 24 are both connected with the same edge forming surface 28, the bottom sides of the third side edge surface 25 and the fourth side edge surface 26 are both connected with the other edge forming surface 28, and the edge forming surface 28 is in a triangular shape. That is, the insert 2 is a machined cylindrical workpiece 3, and includes a prismatic insert 22 and a cylindrical blade 21.
The blade 21 is arranged coaxially with the cutter bar 1, and the cutter head 22 is arranged along the length direction of the cutter bar 1. The midpoint of the connecting line between the top end of the first side edge 231 and the top end of the second side edge 241 is located on the axis of the cutter bar 1, so that when the cutter particle 2 rotates, the cutting range of the bottom edge 27 is conical, and the bottom edge 27 can cut a complete circular hole.
Referring to fig. 3, the present embodiment is a schematic diagram of the operation of the tool tip 22 in hole machining of the workpiece 3, which includes the workpiece 3 and the unfinished hole 31 that is not yet machined. Since the side walls of the tool tip 22 are formed by the first side edge facet 23, the second side edge facet 24, the third side edge facet 25, and the fourth side edge facet 26, clearance spaces 29 are formed at all four side walls of the tool tip 22. Because the adjacent side walls of the tool bit 22 are arranged at an included angle, in the process of hole machining, in combination with the above description, the two chip containing spaces 29 at the first side edge surface 23 and the second side edge surface 24 are communicated, and a space below the blade forming surface 28 is also communicated with the two chip containing spaces; similarly, the third side edge face 25 is communicated with two chip containing spaces 29 at the fourth side edge face 26, and the space below the other side edge face 28 is simultaneously communicated with the two space. This arrangement enables the swarf generated during cutting of the bottom edge 27 to be discharged in a timely manner.
The implementation principle of the milling cutter in the embodiment of the application is as follows: when the tool bit 22 starts to rotate, firstly the lowest point of the bottom edge 27 will abut against the workpiece 3, and simultaneously the tool bit 22 is driven by the tool bar 1 to move downwards, and the bottom edge 27 starts to process the hole on the workpiece 3. During the machining process, as the machining process progresses, the chips generated by cutting with the bottom edge 27 pass through the two spaces formed by the edge surfaces 28 and are discharged from the chip-containing space 29 and between the tool bit 22 and the inner wall of the hole 31 to be machined. It is worth mentioning that when the grinding tool is used for hole machining, the feeding amount is usually 0.1 μm/r to 1.5 μm/r, the rotating speed is kept at 50 r/s to 85r/s, and the feeding amount and the rotating speed are determined according to different angles of the bottom edge 27, such as: when the included angle between the bottom edge 27 and the axis of the cutter bar 1 is 5 degrees, the feed amount is selected to be 1 μm/r because the bottom edge 27 has a larger deflection angle and high sharpness but stronger cutting capability; when the included angle between the bottom edge 27 and the axis of the cutter bar 1 is 1 degree, the feeding amount is selected to be 0.5 mu m/r, the sharpness is low, and therefore, a small feeding amount needs to be provided, and the possibility of cutter breakage is reduced.
In the embodiment described in this example, when machining the YG12 cemented carbide slab, the tool rotation diameter was 1.5mm, the roundness was within 0.005mm, the depth of the machined hole was 1.5mm, and the average machining life of the tool was 50 pieces.
The second embodiment of the present application discloses a milling cutter, and the difference between the second embodiment and the first embodiment is that: the cutting head 22 in this embodiment is reduced in diameter, and the entire cutting head 22 is long and straight, that is, the cutting head 22 is reduced in diameter from the end thereof away from the tool holder 1 to the other end thereof. The cutting head 22 in this embodiment is provided with only a first side cutting surface 23 and a third side cutting surface 25 (not shown in the figure), the first side cutting surface 23 and the third side cutting surface 25 are arranged in an axisymmetric manner around the axis of the tool holder 1, the side wall of the cutting head 22 between the first side cutting surface 23 and the third side cutting surface 25 is a cylindrical surface, the first side cutting surface 23 is connected with one forming surface 28, and the third side cutting surface 25 is connected with the other forming surface 28. When the tool bit 22 is used, the cylindrical surface side wall of the tool bit 22 can extrude the inner side wall of the hole 31 to be machined, which is cut by the bottom blade 27, so that the roundness of the inner side wall of the hole to be machined is higher, and the machining error caused by the jumping of the tool bit 22 is reduced.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (9)
1. The utility model provides a milling cutter, includes cutter arbor (1) and connects in the sword grain (2) of cutter arbor (1) one end, its characterized in that: the end surface of the cutter particle (2) back to the cutter bar (1) is provided with two included angle-forming blade surfaces (28), and a bottom blade (27) is formed at the joint between the two included angle-forming blade surfaces (28);
the bottom cutting edge (27) and the cutter bar (1) are arranged in an obtuse angle, and the orthographic projection point of the rotation axis of the cutter bar (1) is in a circle with the bottom cutting edge (27) as the diameter;
the end part of the knife particle (2) with the bottom edge (27) extends to the other end to be reduced in diameter;
at least one side wall of the knife particle (2) connected with the knife-forming surface (28) is sunken towards the inside of the knife particle (2) relative to at least one side wall of other knife particles (2), and the knife particle (2) penetrates through the knife particle (2) along the length direction of the knife particle (2) to form a chip containing space (29).
2. The milling cutter according to claim 1, wherein: the included angle between the bottom edge (27) and the cutter bar (1) is larger than 90 degrees and smaller than or equal to 95 degrees.
3. The milling cutter according to claim 1, wherein: the two blade forming surfaces (28) have the same contour and area.
4. The milling cutter according to claim 1, 2 or 3, wherein: the two blade forming surfaces (28) are distributed in an axisymmetric manner by taking the bottom edge (27) as an axis.
5. The milling cutter according to claim 1, wherein: the chip containing spaces (29) are at least two and are respectively arranged at two sides of the bottom edge (27).
6. The milling cutter according to claim 1 or 5, wherein: the number of the chip containing spaces (29) is four, the four chip containing spaces (29) are distributed on two sides of the bottom edge (27) in a group in pairs, and the four chip containing spaces (29) divide the cutter particles (2) into prismatic structures.
7. The milling cutter according to claim 6, wherein: the four chip containing spaces (29) divide the side wall of the knife grain (2) into four planes: a first side edge surface (23), a second side edge surface (24), a third side edge surface (25) and a fourth side edge surface (26); the second side edge surface (24) and the fourth side edge surface (26) are respectively connected to two sides of the first side edge surface (23), an obtuse angle is formed between the second side edge surface (24) and the first side edge surface (23), and an acute angle is formed between the fourth side edge surface (26) and the first side edge surface (23); the second side edge surface (24) and the fourth side edge surface (26) are respectively connected to two sides of the third side edge surface (25), the third side edge surface (25) is parallel to the first side edge surface (23), and the second side edge surface (24) is parallel to the fourth side edge surface (26).
8. The milling cutter according to claim 7, wherein: the included angle between the second side edge surface (24) and the first side edge surface (23) is larger than 90 degrees and smaller than or equal to 120 degrees.
9. The milling cutter according to claim 7, wherein: a first side edge (231) is formed at the joint between the first side edge surface (23) and the fourth side edge surface (26), a second side edge (241) is formed at the joint between the third side edge surface (25) and the second side edge surface (24), and the included angle between the first side edge (231) and the second side edge (241) is greater than or equal to 10 'and smaller than or equal to 30'.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010885802.0A CN112207336A (en) | 2020-08-28 | 2020-08-28 | Milling cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010885802.0A CN112207336A (en) | 2020-08-28 | 2020-08-28 | Milling cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112207336A true CN112207336A (en) | 2021-01-12 |
Family
ID=74060340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010885802.0A Pending CN112207336A (en) | 2020-08-28 | 2020-08-28 | Milling cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112207336A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114769690A (en) * | 2022-05-31 | 2022-07-22 | 山东理工大学 | Reverse oblique line cutting edge fine cutter for difficult-to-machine materials |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3096836A (en) * | 1958-09-23 | 1963-07-09 | Sandvikens Jernverks Ab | Drill bits and cutting inserts therefor |
| CN2480090Y (en) * | 2001-04-28 | 2002-03-06 | 钟锋 | Three-square drill |
| CN204818197U (en) * | 2015-07-13 | 2015-12-02 | 廊坊西波尔钻石技术有限公司 | A diamond bit for little spot facing work |
| CN109676258A (en) * | 2019-01-21 | 2019-04-26 | 南京航空航天大学 | A kind of micro- milling cutter preparation method of cvd diamond based on laser and accurate sharpening |
| CN110560768A (en) * | 2019-09-12 | 2019-12-13 | 汇专绿色工具有限公司 | Cutting tool and tool bit structure thereof |
-
2020
- 2020-08-28 CN CN202010885802.0A patent/CN112207336A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3096836A (en) * | 1958-09-23 | 1963-07-09 | Sandvikens Jernverks Ab | Drill bits and cutting inserts therefor |
| CN2480090Y (en) * | 2001-04-28 | 2002-03-06 | 钟锋 | Three-square drill |
| CN204818197U (en) * | 2015-07-13 | 2015-12-02 | 廊坊西波尔钻石技术有限公司 | A diamond bit for little spot facing work |
| CN109676258A (en) * | 2019-01-21 | 2019-04-26 | 南京航空航天大学 | A kind of micro- milling cutter preparation method of cvd diamond based on laser and accurate sharpening |
| CN110560768A (en) * | 2019-09-12 | 2019-12-13 | 汇专绿色工具有限公司 | Cutting tool and tool bit structure thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114769690A (en) * | 2022-05-31 | 2022-07-22 | 山东理工大学 | Reverse oblique line cutting edge fine cutter for difficult-to-machine materials |
| CN114769690B (en) * | 2022-05-31 | 2023-12-26 | 山东理工大学 | Reverse oblique line cutting edge micro tool for difficult-to-process material |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2744524C (en) | Ball nose end mill and insert | |
| US20180318939A1 (en) | Rotary tool | |
| CN110103344A (en) | A kind of cutting tool and its cutter head structure | |
| JP5152693B2 (en) | Insert and cutting edge exchangeable cutting tool | |
| CN112207336A (en) | Milling cutter | |
| CN212761368U (en) | Hard alloy high-speed milling cutter | |
| CN112453508B (en) | PCD drilling, milling and chamfering tool for machining composite material hole | |
| CN215392665U (en) | Special multi-tip strong chip breaking drill bit for carbon fiber composite material | |
| CN113399724B (en) | Fast feed milling blade and milling cutter thereof | |
| CN212443291U (en) | Chamfering tool | |
| CN113695653A (en) | Ball-end milling cutter | |
| CN100417476C (en) | Transposable turning tool blade for working high-hardness, high-viscosity material | |
| CN210160488U (en) | Tool bit structure and cutting tool | |
| CN207710013U (en) | A kind of PCD reamers | |
| CN206622639U (en) | For manufacturing the blank and its cutter of cutter | |
| CN217595988U (en) | Thread combined drilling and milling cutter | |
| CN220407201U (en) | Drilling reamer | |
| CN217252890U (en) | Multi-size combined cutting boring cutter | |
| CN219520613U (en) | Multi-edge spiral milling cutter | |
| CN216502541U (en) | Four-edge high-precision high-efficiency drill | |
| CN213560082U (en) | Drill bit | |
| CN218745062U (en) | Hard alloy drill | |
| CN215615397U (en) | Round nose milling cutter that machining precision is high | |
| CN216541056U (en) | Miniature finish milling processing cutter | |
| CN217121883U (en) | PCD (polycrystalline Diamond) forming cutter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210112 |