CN212019544U - Milling cutter - Google Patents
Milling cutter Download PDFInfo
- Publication number
- CN212019544U CN212019544U CN202020060307.1U CN202020060307U CN212019544U CN 212019544 U CN212019544 U CN 212019544U CN 202020060307 U CN202020060307 U CN 202020060307U CN 212019544 U CN212019544 U CN 212019544U
- Authority
- CN
- China
- Prior art keywords
- side wall
- milling cutter
- mounting
- cutting
- blade
- 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.)
- Active
Links
Images
Landscapes
- Milling Processes (AREA)
Abstract
The utility model discloses a milling cutter, which is characterized in that the milling cutter comprises a cutter handle, the cutter handle is provided with a mounting end and a connecting end which are arranged oppositely, and the side wall of the mounting end is provided with a plurality of first mounting surfaces which are arranged at intervals along the circumferential direction of the cutter handle; the milling cutter also comprises a plurality of first blades, each first blade is arranged on one first mounting surface, and each first blade is provided with a cutting edge facing to the rotation direction of the cutter handle; the milling cutter further comprises a plurality of second blades, the second blades are arranged on the end face of the mounting end at intervals around the central axis of the cutter handle, and each second blade is provided with a cutting face facing the rotating direction of the cutter handle. The technical scheme of the utility model aim at solving the problem of traditional milling cutter function singleness.
Description
Technical Field
The utility model relates to a cutting tool field, in particular to milling cutter.
Background
A milling cutter is a rotary cutter having one or more cutter teeth for milling, in which each cutter tooth cuts off a margin of a workpiece in sequence and intermittently during operation, and is mainly used for plane processing, step processing, workpiece cutting, and the like of a milling machine. The existing milling cutters can be divided into side milling cutters and end milling cutters, wherein the side milling cutters can only be used for side milling, and the end milling cutters can only be used for end face milling; in the milling process, the milling from the side surface is replaced by the milling from the end surface, so that the corresponding cutter needs to be replaced, the replacing process is troublesome, and the time is wasted.
The above is only for the purpose of assisting understanding of the technical solutions of the present application, and does not represent an admission that the above is prior art.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a milling cutter aims at solving the problem of traditional milling cutter function singleness.
In order to achieve the purpose, the utility model provides a milling cutter, the milling cutter comprises a cutter handle, the cutter handle is provided with a mounting end and a connecting end which are arranged oppositely, and the side wall of the mounting end is provided with a plurality of first mounting surfaces which are arranged at intervals along the circumferential direction of the cutter handle;
the milling cutter also comprises a plurality of first blades, each first blade is arranged on one first mounting surface, and each first blade is provided with a cutting edge facing to the rotation direction of the cutter handle;
the milling cutter further comprises a plurality of second blades, the second blades are arranged on the end face of the mounting end at intervals around the central axis of the cutter handle, and each second blade is provided with a cutting face facing the rotating direction of the cutter handle.
In an embodiment of the present invention, the cutting edge extends along a direction from the mounting end to the connecting end, and the extending direction of the cutting edge forms an included angle with an axis of the tool holder;
in the rotating direction of the tool handle, one end of the cutting edge, which is close to the end face of the mounting end, is arranged in front of one end, which is far away from the end face of the mounting end, of the cutting edge.
In an embodiment of the present invention, the first blade includes a first side wall, a second side wall, a third side wall, a fourth side wall, a fifth side wall, a sixth side wall and a seventh side wall that are sequentially disposed and connected in sequence along a circumferential direction of the first blade, the first side wall abuts against the first mounting surface, and the fifth side wall is disposed opposite to the first side wall, a back direction of the second side wall and a back direction of the first side wall are arranged at an obtuse angle, the third side wall is arranged at a curved surface of an inner concave, the back direction of the fourth side wall and the back direction of the fifth side wall are arranged at an obtuse angle, the fourth side wall and the fifth side wall enclose to form the cutting edge, the sixth side wall is spaced from a distance of the first side wall, the handle rotation direction is gradually increased, the seventh side wall and the fourth side wall are disposed opposite to each other.
In an embodiment of the present invention, the first blade is provided with a chip breaker, the chip breaker is formed by the second side wall, the third side wall and the fourth side wall in a surrounding manner, and a notch of the chip breaker faces the rotation direction of the handle.
In an embodiment of the present invention, an included angle between the fourth sidewall and the plane where the first sidewall 210 is defined as α, and α satisfies a condition of 45 ° < α <90 °.
In an embodiment of the present invention, the first blade is close to the end face of the mounting end, and the cutting portion is protruded from the end face of the mounting end, and the cutting portion and the first blade are integrally formed.
In an embodiment of the present invention, the cutting portion includes a top surface facing away from the tool holder, and a height of the top surface gradually increases along a rotation direction of the first blade;
and/or the cutting part comprises a top surface back to the cutter handle, and the height of the top surface is gradually reduced outwards along the center of the cutter handle.
In an embodiment of the present invention, the second blade includes a cutting surface, a second side wall, a third side wall, a fourth side wall, a fifth side wall and a sixth side wall, which are sequentially arranged along a circumferential direction of the second blade and sequentially connected to each other, the cutting surface and the fifth side wall are arranged opposite to each other, the second side wall and the sixth side wall are arranged opposite to each other, the third side wall and the fourth side wall are arranged at an obtuse angle, and a back direction of the fourth side wall and a back direction of the fifth side wall are arranged at an acute angle;
the second blade further comprises a second mounting surface facing the mounting end and a top wall facing the mounting end and arranged in the direction of the mounting end, the second mounting surface abuts against the end surface of the mounting end, and the top wall and the second mounting surface are arranged oppositely,
in an embodiment of the invention, the height of the top wall gradually increases along the direction of rotation of the milling cutter.
The utility model discloses an in the embodiment, two adjacent still be equipped with the chip removal face between the first installation face, the chip removal face for the lateral wall of handle of a knife sinks to set up, the sunken degree of depth of chip removal face by the installation end extremely the link crescent.
The technical scheme of the utility model is that the milling cutter comprises a cutter handle, the cutter handle is provided with a mounting end and a connecting end which are arranged oppositely, and the side wall of the mounting end is provided with a plurality of first mounting surfaces which are arranged at intervals along the circumferential direction of the cutter handle; the milling cutter also comprises a plurality of first blades, each first blade is arranged on a first mounting surface, and each first blade is provided with a cutting edge facing to the rotation direction of the cutter handle; the milling cutter further comprises a plurality of second blades, the second blades are arranged on the end face of the mounting end at intervals around the central axis of the cutter handle, and each second blade is provided with a cutting face facing the rotating direction of the cutter handle. The connecting end is connected with an external rotating device to drive the whole milling cutter to rotate so as to realize the purpose of rotary cutting of the milling cutter; the side wall of the mounting end is provided with a plurality of first mounting surfaces arranged at intervals along the circumferential direction of the tool handle, and the first blade is mounted on the first mounting surfaces, so that the first blade is simpler and more convenient to mount; the first blade is provided with a cutting edge, so that the first blade can be used for side face cutting, the cutting edge protrudes out of the first mounting surface, the cutting edge is more easily contacted with a workpiece, and the machining efficiency is improved; therefore, the milling cutter has the functions of side cutting and end face cutting, the milling cutter does not need to be replaced when the side cutting is replaced by the end face cutting, the effect of expanding the cutting function of the milling cutter is achieved, and the milling cutter can be used for the end face cutting and the side face cutting.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an embodiment of a milling cutter according to the present invention;
FIG. 2 is a schematic view of a structure of an embodiment of a tool shank;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
FIG. 4 is a schematic structural diagram of an embodiment of a first blade;
FIG. 5 is an isometric view of FIG. 4;
FIG. 6 is a schematic structural view of an embodiment of a second blade;
fig. 7 is a right side view of fig. 6.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 100 | Knife |
200 | |
| 300 | |
110 | |
| 120 | Connecting |
130 | |
| 140 | |
210 | |
| 220 | |
230 | |
| 240 | The |
250 | The |
| 260 | |
270 | |
| 280 | |
281 | The |
| 400 | |
500 | |
| 310 | |
320 | |
| 330 | Second mounting surface |
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The utility model provides a milling cutter.
In the embodiment of the present invention, as shown in fig. 1, fig. 2, and fig. 6, the milling cutter includes a cutter handle 100, the cutter handle 100 has a mounting end 110 and a connecting end 120 which are arranged oppositely, and a plurality of first mounting surfaces 130 arranged at intervals are arranged on a side wall of the mounting end 110 along a circumferential direction of the cutter handle 100; the milling cutter further comprises a plurality of first inserts 200, each first insert 200 is mounted on a first mounting surface 130, and each first insert 200 has a cutting edge 400 facing the rotation direction of the cutter handle 100; the milling cutter further comprises a plurality of second blades 300, the plurality of second blades 300 are arranged on the end surface of the mounting end 110 at intervals around the central axis of the cutter handle 100, and each second blade 300 is provided with a cutting surface 310 facing the rotating direction of the cutter handle 100. The problem that the traditional milling cutter can only be used for side milling or end milling and is single in function is effectively solved.
In the practical application process, the first blade 200 and the second blade 300 are mounted on the tool holder 100 in various mounting manners, such as fusion welding mounting, pressure welding mounting and brazing mounting, in consideration of technical effects, the brazing mounting is preferably adopted, the brazing can enable the surface of a welding head to be smooth and clean, the air tightness to be good, the shape and the size of a weldment to be stable, and the structure and the performance of the weldment to be changed slightly; in the practical application process, the first blade 200 and the second blade 300 are installed at the same end of the tool shank 100 and are both installed at one end of the tool shank 100 close to the installation end 110, so that the first blade 200 and the second blade 300 can work simultaneously, and the working efficiency of the milling cutter is improved.
The tool holder 100 may be made of various materials, such as tungsten-cobalt hard alloy, tungsten-titanium-niobium hard alloy, tungsten carbide-based hard alloy, and the like, and preferably, the tungsten carbide-based hard alloy and the tungsten carbide-based hard alloy have high hardness and are not easy to wear in consideration of economic cost and hardness; the first blade 200 and the second blade 300 may be made of various materials, such as cubic boron nitride, polycrystalline cubic boron nitride, and polycrystalline diamond, and considering the cutting effect, polycrystalline diamond is preferably used, and has extremely high hardness and wear resistance, high thermal conductivity and low thermal expansion coefficient, fast heat dissipation during cutting, low cutting temperature, small thermal deformation, and small friction coefficient, so that the surface roughness can be reduced.
According to the technical scheme of the utility model, the milling cutter comprises a cutter handle 100, the cutter handle 100 is provided with a mounting end 110 and a connecting end 120 which are arranged oppositely, and the side wall of the mounting end 110 is provided with a plurality of first mounting surfaces 130 which are arranged at intervals along the circumferential direction of the cutter handle 100; the milling cutter further comprises a plurality of first inserts 200, each first insert 200 is mounted on a first mounting surface 130, and each first insert 200 has a cutting edge 400 facing the rotation direction of the cutter handle 100; the milling cutter further comprises a plurality of second blades 300, the plurality of second blades 300 are arranged on the end surface of the mounting end 110 at intervals around the central axis of the cutter handle 100, and each second blade 300 is provided with a cutting surface 310 facing the rotating direction of the cutter handle 100. The connecting end 120 is connected with an external rotating device to drive the whole milling cutter to rotate so as to achieve the purpose of rotary cutting of the milling cutter; the side wall of the mounting end 110 is provided with a plurality of first mounting surfaces 130 arranged at intervals along the circumferential direction of the tool holder 100, and the first blade 200 is mounted on the first mounting surfaces 130, so that the first blade 200 is simpler and more convenient to mount; the first insert 200 is provided with a cutting edge 400, so that the first insert 200 can be used for side cutting, the design that the cutting edge 400 protrudes out of the first mounting surface 130 facilitates the contact between the cutting edge 400 and a workpiece, and improves the machining efficiency, the second insert 300 is mounted on the end surface of the mounting end 110, and the second insert 300 is provided with a cutting surface 310, so that the second insert 300 can be used for end surface cutting; therefore, the milling cutter has the functions of side cutting and end face cutting, the milling cutter does not need to be replaced when the side cutting is replaced by the end face cutting, and the effect of expanding the cutting function of the milling cutter is achieved.
In an embodiment of the present invention, referring to fig. 1, 2 and 4, the cutting edge 400 extends along the direction from the mounting end 110 to the connecting end 120, and the extending direction of the cutting edge 400 forms an included angle with the axis of the tool holder 100;
in the rotational direction of the tool holder 100, the end of the cutting edge 400 close to the end surface of the mounting end 110 is located forward of the end of the cutting edge 400 remote from the end surface of the mounting end 110. The cutting edge 400 extends along the direction from the mounting end 110 to the connecting end 120, so that the cutting length of the cutting edge 400 is prolonged, the cutting area 310 of the cutting edge 400 is larger, and the cutting efficiency is improved; the extension direction of cutting edge 400 is the contained angle setting with the axial of handle of a knife 100 for cutting edge 400 has reduced the area of contact of cutting edge 400 with the processing work piece at the cutting in-process, thereby has reduced the cutting force that cutting edge 400 received, makes cutting edge 400 be difficult for wearing and tearing, has reached the effect of the life of extension first blade 200.
In an embodiment of the present invention, referring to fig. 4, the first blade 200 includes a first sidewall 210, a second sidewall 220, a third sidewall 230, a fourth sidewall 240, a fifth sidewall 250, a sixth sidewall 260 and a seventh sidewall 270 that are sequentially disposed and connected along a circumferential direction thereof, the first sidewall 210 abuts on the first mounting surface 130 and is disposed opposite to the fifth sidewall 250, a back direction of the second sidewall 220 and a back direction of the first sidewall 210 form an obtuse angle, the third sidewall 230 is disposed on a curved surface of the inner recess, a back direction of the fourth sidewall 240 and a back direction of the fifth sidewall 250 form an obtuse angle, the fourth sidewall 240 and the fifth sidewall 250 enclose to form a cutting edge 400, a distance between the sixth sidewall 260 and the first sidewall 210 gradually increases along a rotation direction of the tool holder 100, and the seventh sidewall 270 and the fourth sidewall 240 are disposed opposite to each other. The first blade 200 comprises a first side wall 210, a second side wall 220, a third side wall 230, a fourth side wall 240, a fifth side wall 250, a sixth side wall 260 and a seventh side wall 270 which are connected in sequence, so as to form an outer side wall of the first blade 200, wherein the first side wall 210 abuts against the first mounting surface 130, and in the practical application process, the first side wall 210 abuts against the first mounting surface 130 in various ways, such as welding, pressure welding and brazing, and in consideration of technical effects, brazing is preferably adopted, so that the surface of a welding head is smooth, the air tightness is good, and the shape and the size of a weldment are stable; the third side wall 230 is arranged in a concave curved surface, so that the chips generated by the cutting edge 400 can be controlled in the concave curved surface, and the chips are prevented from being wound; the back direction of the fourth side wall 240 and the back direction of the fifth side wall 250 form an obtuse angle, the fourth side wall 240 and the fifth side wall 250 enclose to form a cutting edge 400, the cutting edge 400 is formed by enclosing the fourth side wall 240 and the fifth side wall 250, so that an included angle between the fourth side wall 240 and the fifth side wall 250 is an acute angle, the back direction of the fourth side wall 240 and the back direction of the fifth side wall 250 form an obtuse angle, the cutting force borne by the cutting edge 400 is reduced, the cutting efficiency of the cutting edge 400 is higher, and the service life is longer.
In an embodiment of the present invention, referring to fig. 4 and 5, the first blade 200 is provided with a chip breaker 500, the chip breaker 500 is enclosed by the second sidewall 220, the third sidewall 230 and the fourth sidewall 240, and a notch of the chip breaker 500 is disposed toward the rotation direction of the handle 100. The chip breaker 500 is formed by the second side wall 220, the third side wall 230 and the fourth side wall 240 in a surrounding manner, and the milling cutter rotates clockwise, so that the chips generated by the cutting edge 400 are controlled in the chip breaker 500 and pass through the chip breaker 500 to be discharged out of the milling cutter, the chips are not wound, the discharge direction of the chips is controlled, the cutting resistance is reduced, and the service life of the milling cutter is prolonged.
In an embodiment of the present invention, referring to fig. 4 and 5, an included angle between the fourth sidewall 240 and the plane of the first sidewall 210 is defined as α, and α satisfies the condition 45 ° < α <90 °. An included angle between the fourth side wall 240 and a plane where the first side wall 210 is located is an included angle between the fourth side wall 240 and the first mounting surface 130, and the second side wall 220, the third side wall 230 and the fourth side wall 240 enclose to form the chip breaker 500, so that the included angle between the fourth side wall 240 and the first side wall 210 affects an angle of a groove wall of the chip breaker 500, alpha is too small, a chip breaking effect of the chip breaker 500 is poor, and chips cannot be discharged in time; too large α cannot prevent the chips from being wound around the first insert 200 to increase the cutting resistance, and α is limited to 45 ° to 90 ° in order to achieve a proper cutting effect.
In an embodiment of the present invention, referring to fig. 4 and 5, a cutting portion 280 is protruded from an end surface of the first blade 200 near the mounting end 110, and the cutting portion 280 and the first blade 200 are integrally formed as an integral structure. The end surface of the first blade 200 close to the mounting end 110 is convexly provided with a cutting part 280, and the cutting part 280 can be used for cutting the end surface of a milling cutter, so that the cutting function of the milling cutter is increased; the cutting part 280 and the first blade 200 are integrally formed, so that the hardness of the cutting part 280 and the first blade 200 is increased, the first blade 200 is not easy to wear, and the service life of the first blade 200 is prolonged.
In an embodiment of the present invention, referring to fig. 4 and 5, the cutting portion 280 includes a top surface 281 facing away from the tool holder 100, and the height of the top surface 281 gradually increases along the rotation direction of the first blade 200; in the cutting process, the cutting portion 280 directly contacts with a machined product, and the top surface 281 of the cutting portion 280 gradually rises along the rotation direction of the first insert 200, so that the cutting portion 280 is more stressed in cutting, chips conveniently generated fall off, and the chips are prevented from being stuck to the first insert 200 to influence the cutting efficiency and the cutting precision.
In an embodiment of the present invention, referring to fig. 4 and 5, the cutting portion 280 includes a top surface 281 facing away from the tool shank 100, and the height of the top surface 281 decreases gradually along the center of the tool shank 100. The top surface 281 is arranged at one end of the tool holder 100 close to the mounting end 110, and the height of the top surface 281 is gradually reduced outwards along the center of the tool holder 100, so that the chips generated by the cutting part 280 can be discharged out of the milling cutter along the top surface 281 in time, and the chips are prevented from being stuck to the cutting part 280 to influence the cutting efficiency and the cutting effect of the cutting part 280.
In an embodiment of the present invention, referring to fig. 6 and 7, the second insert 300 includes a cutting surface 310, a second sidewall 220, a third sidewall 230, a fourth sidewall 240, a fifth sidewall 250 and a sixth sidewall 260 sequentially disposed along a circumferential direction thereof and sequentially connected, the cutting surface 310 and the fifth sidewall 250 are disposed opposite to each other, the second sidewall 220 and the sixth sidewall 260 are disposed opposite to each other, the third sidewall 230 and the fourth sidewall 240 are disposed at an obtuse angle, and a back direction of the fourth sidewall 240 and a back direction of the fifth sidewall 250 are disposed at an acute angle;
the second blade 300 further includes a second mounting surface 330 disposed facing the mounting end 110, and a top wall 320 disposed facing the mounting end 110 in a facing direction, the second mounting surface 330 abutting against an end surface of the mounting end 110, the top wall 320 being disposed opposite to the second mounting surface 330. The cutting face 310 and the top wall 320 form a cutting edge 400 of the second insert 300, thereby enabling the second insert 300 to be used for end face cutting; the second blade 300 abuts against the end face of the mounting end 110 through the second mounting surface 330, so that the second blade 300 is mounted on the tool holder 100, the second mounting surface 330 abuts against the end face of the mounting end 110 in various ways, such as welding, pressure welding and brazing, and in consideration of technical effects, brazing is preferably adopted, so that the surface of a welding head is smooth, the air tightness is good, and the shape and the size of a weldment are stable;
in an embodiment of the present invention, referring to fig. 6 and 7, the height of the top wall 320 gradually increases along the rotation direction of the milling cutter. The cutting generated by the cutting surface 310 is accumulated on the top wall 320, the height of the top wall 320 is gradually increased along the rotation direction of the milling cutter, the cutting chips generated by the cutting surface 310 can be timely discharged out of the milling cutter, and the height of the top wall 320 is gradually increased along the rotation direction of the milling cutter, so that the contact area between the second blade 300 and the processed workpiece is reduced, the friction force between the second blade 300 and the processed workpiece is reduced, and the service life of the second blade 300 is prolonged.
In an embodiment of the present invention, referring to fig. 2 and fig. 3, a chip removal surface 140 is further disposed between two adjacent first mounting surfaces 130, the chip removal surface 140 is disposed to sink relative to the outer sidewall of the handle 100, and the sinking depth of the chip removal surface 140 is gradually increased from the mounting end 110 to the connecting end 120. A chip removal surface 140 is arranged between two adjacent first mounting surfaces 130, so that chips generated by cutting of the first blade 200 can be discharged out of the milling cutter from the chip removal surface 140 in time, and the chips are prevented from being cut and adhered to the first blade 200; the sinking depth of the chip surface 140 increases from the mounting end 110 to the connecting end 120, which facilitates the discharge of chips and increases the discharge rate of chips.
The above is only the preferred embodiment of the present invention, and the patent scope of the present invention is not limited thereby, all the equivalent structure changes made by the contents of the specification and the drawings are utilized under the inventive concept of the present invention, or the direct/indirect application in other related technical fields is included in the patent protection scope of the present invention.
Claims (10)
1. The milling cutter is characterized by comprising a cutter handle, wherein the cutter handle is provided with a mounting end and a connecting end which are arranged back to back, and the side wall of the mounting end is provided with a plurality of first mounting surfaces which are arranged at intervals along the circumferential direction of the cutter handle;
the milling cutter also comprises a plurality of first blades, each first blade is arranged on one first mounting surface, and each first blade is provided with a cutting edge facing to the rotation direction of the cutter handle;
the milling cutter further comprises a plurality of second blades, the second blades are arranged on the end face of the mounting end at intervals around the central axis of the cutter handle, and each second blade is provided with a cutting face facing the rotating direction of the cutter handle.
2. The milling cutter according to claim 1, wherein the cutting edge extends in a direction from the mounting end to the connecting end, and the cutting edge extends at an angle to an axis of the shank;
in the rotating direction of the tool handle, one end of the cutting edge, which is close to the end face of the mounting end, is arranged in front of one end, which is far away from the end face of the mounting end, of the cutting edge.
3. The milling cutter according to claim 2, wherein the first insert includes a first side wall, a second side wall, a third side wall, a fourth side wall, a fifth side wall, a sixth side wall and a seventh side wall, which are sequentially disposed along a circumferential direction of the first insert and sequentially connected to each other, the first side wall abuts against the first mounting surface and is disposed opposite to the fifth side wall, a back direction of the second side wall and a back direction of the first side wall form an obtuse angle, the third side wall is disposed in a concave curved surface, a back direction of the fourth side wall and a back direction of the fifth side wall form an obtuse angle, the fourth side wall and the fifth side wall surround to form the cutting edge, a distance between the sixth side wall and the first side wall gradually increases along a rotation direction of the holder, and the seventh side wall and the fourth side wall are disposed opposite to each other.
4. The milling cutter according to claim 3, wherein the first insert is provided with a chip breaker which is enclosed by the second, third and fourth side walls, the notch of the chip breaker being disposed toward the direction of rotation of the shank.
5. Milling cutter tool according to claim 4, characterized in that the angle α between the fourth side wall and the plane of the first side wall is defined such that α satisfies the condition 45 ° < α <90 °.
6. The milling cutter according to claim 5 wherein the end surface of the first insert adjacent the mounting end is convexly provided with a cutting portion, the cutting portion being of integral unitary construction with the first insert.
7. The milling cutter tool according to claim 6, wherein the cutting portion includes a top surface facing away from the shank, the top surface having a height that gradually increases in a direction of rotation of the first insert;
and/or the cutting part comprises a top surface back to the cutter handle, and the height of the top surface is gradually reduced outwards along the center of the cutter handle.
8. The milling cutter according to claim 1, wherein the second insert includes a cutting surface, a second side wall, a third side wall, a fourth side wall, a fifth side wall and a sixth side wall which are sequentially arranged along a circumferential direction thereof and are sequentially connected, the cutting surface being arranged opposite to the fifth side wall, the second side wall being arranged opposite to the sixth side wall, the third side wall being arranged at an obtuse angle to the fourth side wall, and a back direction of the fourth side wall being arranged at an acute angle to a back direction of the fifth side wall;
the second blade further comprises a second mounting surface facing the mounting end and a top wall facing the mounting end and arranged in the direction of the surface, the second mounting surface abuts against the end surface of the mounting end, and the top wall and the second mounting surface are arranged oppositely.
9. The milling cutter according to claim 8, wherein the height of the top wall increases gradually in the direction of rotation of the milling cutter.
10. The milling cutter according to claim 1, wherein a chip removal surface is further provided between two adjacent first mounting surfaces, the chip removal surface is sunken relative to the outer side wall of the shank, and the sunken depth of the chip removal surface gradually increases from the mounting end to the connecting end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020060307.1U CN212019544U (en) | 2020-01-09 | 2020-01-09 | Milling cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020060307.1U CN212019544U (en) | 2020-01-09 | 2020-01-09 | Milling cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212019544U true CN212019544U (en) | 2020-11-27 |
Family
ID=73487023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020060307.1U Active CN212019544U (en) | 2020-01-09 | 2020-01-09 | Milling cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212019544U (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 |
-
2020
- 2020-01-09 CN CN202020060307.1U patent/CN212019544U/en active Active
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 |
|---|---|---|
| JPH11320240A (en) | Rotary multi-tooth milling cutter | |
| CN212019544U (en) | Milling cutter | |
| JPH11216609A (en) | Radius cutter end mill | |
| CN111112713A (en) | Milling cutter | |
| CN211804049U (en) | Milling cutter | |
| CN212019543U (en) | Milling cutter | |
| CN211413804U (en) | Milling cutter | |
| CN113399724B (en) | Fast feed milling blade and milling cutter thereof | |
| CN211413806U (en) | Milling cutter | |
| CN211804055U (en) | Milling cutter | |
| CN211413902U (en) | Reamer bit | |
| CN214392510U (en) | Ceramic numerical control cutter for milling | |
| CN211413811U (en) | Milling cutter | |
| CN211804056U (en) | Milling cutter | |
| CN211804058U (en) | Milling cutter | |
| CN211413925U (en) | Reamer bit | |
| CN214640691U (en) | Saw blade | |
| CN213563596U (en) | Diamond saw blade | |
| CN211413819U (en) | Milling cutter | |
| CN211804057U (en) | Cutting tool | |
| CN211727535U (en) | Superhard thread machining blade with water-drop-shaped chip breaking boss | |
| CN218311062U (en) | High-speed dry-cutting milling cutter | |
| CN211413820U (en) | Milling cutter | |
| CN211413900U (en) | Reamer bit | |
| CN212857941U (en) | Large-feed arc angle milling cutter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |