CN213794299U - Stainless steel cutting blade - Google Patents
Stainless steel cutting blade Download PDFInfo
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- CN213794299U CN213794299U CN202022412583.2U CN202022412583U CN213794299U CN 213794299 U CN213794299 U CN 213794299U CN 202022412583 U CN202022412583 U CN 202022412583U CN 213794299 U CN213794299 U CN 213794299U
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Abstract
The utility model provides a stainless steel cutting blade, which comprises a blade body which is a polygonal body, wherein the blade body is provided with a plurality of first protrusions and second protrusions along the periphery of a positioning center hole; the apex angle of blade body is equipped with cutting unit, and cutting unit includes cutting edge, circular arc sword, chip-breaker. The chip breaker groove consists of a first front cutter face at the arc position, a second front cutter face at the arc position, a chip breaker groove bottom face, a chip breaker table, a chip containing groove and a first protruding part. And the cutting edge comprises two sections of main cutting edges and secondary cutting edges, and the main cutting edges adopt the structures of variable edge width and variable rake angle, so that the cutting edge strength of the relative arc edge is firmer. The utility model discloses a cutting blade when guaranteeing the blade sharpness, has compromise the intensity of blade, and two chip breaking platform designs and makes this cutting blade all have good chip breaking effect at great within range when processing the stainless steel.
Description
Technical Field
The utility model relates to a metal cutting processing technology field, in particular to stainless steel cutting blade.
Background
In the machining process of the stainless steel, due to the plastic deformation of the material, the stainless steel is subjected to work hardening, so that the cutting chips are relatively tough and difficult to curl, break and effectively guide and discharge in the cutting process of the blade, and when the tough cutting chips flow through the front blade surface in the machining process, the phenomena of sticking, fusion welding and the like are generated, the surface machining quality of a workpiece is influenced, and the service life of the blade is also seriously shortened.
In the prior art, the cutting insert for turning the stainless steel flange is often used for ensuring the enough strength of the cutting tool during rough machining, but cannot ensure the surface smoothness of a machined workpiece during finish machining; in the fine machining process, the surface smoothness of a machined part can be ensured, but the sufficient wear resistance of the blade cannot be ensured.
SUMMERY OF THE UTILITY MODEL
The utility model provides a stainless steel cutting blade, its purpose is in order to improve the surface finish of work piece to guarantee simultaneously intensity in rough machining and the sharpness in finish machining.
In order to achieve the above object, the present invention provides a stainless steel cutting insert, comprising:
the cutting insert comprises an insert body, a cutting insert body and a cutting insert body, wherein the insert body comprises an upper surface, a lower surface and side surfaces, an arc surface is arranged in the middle of each side surface, and an arc surface is also arranged at the joint of each side surface and the corresponding side surface; a positioning hole is also formed in the middle of the blade body;
the cutting units are positioned at the upper part of the vertex angle of the blade body and symmetrically distributed according to a vertex angle bisector, and each cutting unit comprises an arc edge, a main cutting edge, a secondary cutting edge and a chip breaker groove;
the main cutting edge is also sequentially provided with a main cutting position first front tool face and a main cutting position second front tool face towards the positioning hole; the secondary cutting edge is also sequentially provided with a secondary cutting position first front tool face and a secondary cutting position second front tool face towards the positioning hole; the arc blade is also sequentially provided with a first front blade surface at an arc position and a second front blade surface at the arc position towards the positioning hole;
the chip breaker is composed of a main cutting part first front cutter face, a main cutting part second front cutter face, a secondary cutting part first front cutter face, a secondary cutting part second front cutter face, an arc part first front cutter face, an arc part second front cutter face, a chip breaker unit, a chip groove, a chip breaker table and a first protrusion part; the chip breaker grooves are sequentially connected along a vertex angle bisector from the arc blade to the positioning hole in the sequence of an arc blade, a first front cutter face at the arc position, a second front cutter face at the arc position, a chip breaker groove bottom face, a chip breaker table and a first protrusion;
the arc blade is formed by intersecting a first front cutter face at the arc part with the arc surface; the main cutting edge is formed by the intersection of the side surface and the main cutting point first rake surface; the secondary cutting edge is formed by the intersection of the flank face and the secondary cutting first rake face;
and a second protruding part is arranged between the adjacent first protruding parts, the second protruding parts are distributed along the positioning hole, and the upper side of each first protruding part is an upper surface.
Preferably, an angle formed by the main cutting edge and the main cutting-site first rake face is not smaller than an angle formed by the circular arc edge and the circular arc-site first rake face, and is not larger than an angle formed by the sub cutting edge and the sub cutting-site first rake face.
Preferably, the shape of the chip breaking platform is a convex sphere, and the radius of the chip breaking platform is 0.3 mm-2 mm.
Preferably, the chip breaking table is connected with the bottom surface of the chip breaking groove along the front end of a vertex angle bisector, the first protruding part is connected with the rear end of the chip breaking table, and the chip breaking table is higher than the bottom surface of the chip breaking groove and lower than the first protruding part.
Preferably, the angle formed by the first rake face at the circular arc and the upper surface is alpha, and the alpha range is 3-18 degrees; the angle formed by the second rake face at the arc and the upper surface is beta, and the beta range is 10-30 degrees.
Preferably, the intersection of the main cutting position first rake face and the arc position first rake face is a first intersection point; the intersection of the first rake face at the main cutting position and the first rake face at the secondary cutting position is a second intersection point, and the angle formed by the first rake face at the main cutting position and the upper surface at the first intersection point is gamma and ranges from 2 degrees to 10 degrees; the angle formed by the second front tool face at the main cutting part and the upper surface is epsilon, and the range is 10-30 degrees; the angle formed by the first front cutter face at the secondary cutting part and the upper surface at the second intersection point is lambda and ranges from 0 degree to 5 degrees; the angle formed by the second front tool face at the secondary cutting part and the upper surface is phi, and the range is 5-20 degrees; and λ < γ, φ < ε.
Preferably, the distance from the first intersection point to the second intersection point of the major cutting edge is L, and the range is 1mm to 6 mm.
Preferably, the edge width of the main cutting edge at the first intersection point is L1, ranging from 0.1mm to 0.5 mm; the edge width of the main cutting edge at the second intersection point is L2 and ranges from 0.1mm to 0.5 mm; the blade width L1 is less than the blade width L2.
Preferably, the vertical distance from the bottom surface of the chip breaker to the top plane of the first protrusion is H1, and the range of the vertical distance is 0.1 mm-0.5 mm; the vertical distance from the top surface of the chip breaking table to the top plane of the first protrusion part is H2 and ranges from 0.1mm to 0.5 mm; the H1 > H2.
Preferably, the first rake face at the arc is connected with the second rake face at the arc through a first transition arc; the first front tool face at the main cutting part is connected with the second front tool face at the main cutting part through a first transition arc; the first front tool face at the secondary cutting part is connected with the second front tool face at the secondary cutting part through a first transition arc; the arc second front tool face, the main cutting second front tool face and the secondary cutting second front tool face are connected with the bottom face of the chip breaker through a second transition arc.
The above technical scheme of the utility model has following beneficial effect:
1. the utility model provides a pair of stainless steel cutting blade, it adopts the design of becoming the sword width and becoming the anterior angle through first cutting edge department, has not only taken into account the sharpness of blade edge, has also guaranteed the sufficient intensity of blade.
2. The utility model discloses a stainless steel cutting blade, its chip breaking adopts the setting of two chip breaking platforms, makes the chip breaking scope of blade obtain further expansion, makes this blade no matter be rough machining or finish machining can both obtain a good chip breaking effect.
Drawings
FIG. 1 is a perspective view of a stainless steel cutting insert according to the present embodiment;
FIG. 2 is a front view of a stainless steel cutting insert according to the present embodiment;
fig. 3 is a partially enlarged view of the cutting unit U;
FIG. 4 is a cross-sectional view of the blade of FIG. 2 taken along line G-G;
FIG. 5 is a cross-sectional view of the blade of FIG. 2 taken along line H-H;
fig. 6 is a cross-sectional view of the blade of fig. 2 taken along line J-J.
Description of the reference numerals
1-a blade body; 2-upper surface; 3-lower surface; 4-side; 5-arc surface; 6-arc edge; 71-a main cutting edge; 72-minor cutting edge; 8-a first rake face at the arc; 91-main cut first rake face; 92-a secondary cut first rake surface; a second rake face at the 10-arc; 111-main cut second rake face; 112-a secondary cutting second rake face; 12-a first transition arc; 13-bottom of chip breaker; 14-chip flutes; 15-a second transition arc; 16-a chip breaking table; 17-a first protrusion; 18-a second protrusion; 19-a cutting unit; 20-positioning holes; 21-chip breaker.
Detailed Description
In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.
The utility model discloses to current problem, a stainless steel cutting blade is provided, include:
the cutting insert comprises an insert body 1, wherein the insert body 1 comprises an upper surface 2, a lower surface 3 and side surfaces 4, an arc surface 5 is arranged in the middle of each side surface 4, and the arc surface 5 is also arranged at the joint of each side surface 4 and the corresponding side surface 4; a positioning hole 20 is further formed in the middle of the blade body 1;
the cutting unit 19 is positioned at the upper part of the vertex angle of the blade body 1 and symmetrically distributed according to a vertex angle bisector, and the cutting unit 19 comprises an arc edge 6, a main cutting edge 71, a secondary cutting edge 72 and a chip breaker 21;
the main cutting edge 71 is further provided with a main cutting part first rake surface 91 and a main cutting part second rake surface 111 in sequence in the direction of the positioning hole 20; the secondary cutting edge 72 is further provided with a secondary cutting first rake surface 92 and a secondary cutting second rake surface 112 in sequence in the direction of the positioning hole 20; the arc blade 6 is also sequentially provided with an arc first front blade surface 8 and an arc second front blade surface 10 towards the positioning hole 20;
the chip breaker 21 consists of a main cutting part first front tool surface 91, a main cutting part second front tool surface 111, a secondary cutting part first front tool surface 92, a secondary cutting part second front tool surface 112, an arc part first front tool surface 8, an arc part second front tool surface 10, a chip breaker unit, a chip breaker 14, a chip breaker 16 and a first protrusion 17; the chip breaker 21 is sequentially connected along a vertex angle bisector from the circular arc blade 6 to the positioning hole 20 in the sequence of the circular arc blade 6, a circular arc first front cutter face 8, a circular arc second front cutter face 10, a chip breaker bottom face 13, a chip breaker 16 and a first protrusion 17;
the arc blade 6 is formed by intersecting the first front blade surface 8 at the arc position with the arc surface 5; the main cutting edge 71 is formed by the intersection of the side surface 4 and the main cutting point first rake surface 91; the secondary cutting edge 72 is formed by the intersection of the side surface 4 and the secondary cut first rake surface 92;
and second protruding parts 18 are further arranged between the adjacent first protruding parts 17, the second protruding parts 18 are distributed along the positioning holes 20, and the upper side of each first protruding part 17 is the upper surface 2.
Preferably, the angle formed by the major cutting edge 71 and the major-cutting-site first rake surface 91 is not smaller than the angle formed by the circular-arc edge 6 and the circular-arc-site first rake surface 8, and not larger than the angle formed by the minor cutting edge 72 and the minor-cutting-site first rake surface 92.
Preferably, the shape of the chip breaker 16 is a convex sphere, and the radius of the chip breaker 16 is 0.3mm to 2 mm.
Preferably, the chip breaker 16 is connected with the chip breaker bottom surface 13 along the vertex angle bisector at the front end, and is connected with the first protrusion 17 at the rear end, and the chip breaker 16 is higher than the chip breaker bottom surface 13 and lower than the first protrusion 17.
Preferably, the angle formed by the first rake face 8 at the arc and the upper surface 2 is α, and the range of α is 3 ° to 18 °; the angle formed by the second rake face 10 at the arc and the upper surface 2 is beta, and the beta range is 10-30 degrees.
Preferably, the intersection of the main cutting point first rake face 91 and the circular arc first rake face 8 is a first intersection point; the intersection of the main cutting point first rake face 91 and the sub cutting point first rake face 92 is a second intersection, and the angle formed by the main cutting point first rake face 91 and the upper surface 2 at the first intersection is γ, which ranges from 2 ° to 10 °; the angle formed by the second rake face 111 at the main cutting position and the upper surface 2 is epsilon, and the range is 10-30 degrees; the angle formed by the secondary cutting first rake face 92 and the upper surface 2 at the second intersection point is λ, ranging from 0 ° to 5 °; the angle formed by the second rake face 112 at the secondary cutting position and the upper surface 2 is phi, and the range is 5-20 degrees; and λ < γ, φ < ε.
Preferably, the distance from the first intersection point to the second intersection point of the major cutting edge 71 is L, and is in the range of 1mm to 6 mm.
Preferably, the edge width of the major cutting edge 71 at the first intersection is L1, ranging from 0.1mm to 0.5 mm; the edge width of the main cutting edge 71 at the second intersection point is L2, and the range is 0.1 mm-0.5 mm; the blade width L1 is less than the blade width L2.
Preferably, the vertical distance from the chip breaker bottom surface 13 to the top plane of the first protrusion 17 is H1, and the range is 0.1mm to 0.5 mm; the vertical distance from the top surface of the chip breaking table 16 to the top plane of the first protrusion 17 is H2, and the range is 0.1 mm-0.5 mm; the H1 > H2.
Preferably, the first rake face 8 at the arc is connected with the second rake face 10 at the arc through a first transition arc 12; the main cutting part first rake surface 91 is connected with the main cutting part second rake surface 111 through a first transition circular arc 12; the secondary cutting first rake surface 92 is connected with the secondary cutting second rake surface 112 through a first transition arc 12; the arc second rake face 10, the main cutting second rake face 111 and the secondary cutting second rake face 112 are connected with the breaker bottom surface 13 through a second transition arc 15.
As shown in fig. 1, an insert for stainless steel flange turning comprises an insert body 1; the blade body 1 is a polygonal body, in the embodiment, the blade body 1 is approximately in a geometric structure of an equilateral non-equiangular hexagonal body; the blade body 1 comprises an upper surface 2, a lower surface 3, a plurality of side surfaces 4 and an arc surface 5 positioned between two adjacent side surfaces 4; the blade body 1 is provided with a positioning hole 20 positioned at the geometric center thereof;
the upper surface 2 of the blade body 1 is uniformly provided with a plurality of first protrusions 17 along the periphery of the positioning holes 20; and a second protrusion part 18 is arranged at the center point of the connection part of the two side surfaces 4 and the upper surface 2 at the obtuse angle at the outer side of the two adjacent first protrusion parts 17. In the embodiment 1, 3 first protrusions 17 with an approximate triangle shape are respectively arranged on the periphery of the positioning hole 20 of the upper surface 2, and 3 second protrusions 18 with an approximate cuboid shape are respectively arranged at the central point of the intersection of the obtuse angle formed by the intersection of the two adjacent side surfaces 4 and the upper surface 2 on the outer side between the two adjacent first protrusions 17.
As shown in fig. 1, the blade body 1 is provided with at least one cutting unit 19; each of the above-described cutting units 19 is provided at the top corner of the blade body 1; the cutting units 19 are symmetrically distributed about the angular bisector;
as shown in fig. 3, in the chip breaker 21, two half-moon-shaped chip breaking platforms 16 are respectively arranged at the two outer sides of the intersection of the chip breaker bottom surface 13 and the first bulge 17; the other side of the half-moon-shaped chip breaking table 16 is connected with a chip groove bottom plane 13; and the height of the "half-moon" chip breaker 16 is higher than the chip breaker bottom surface 13 and the chip flute 14 bottom plane and lower than the upper surface 2.
As shown in fig. 4, the radius R1 of the outer convex spherical body of the chip-breaker 6 is in the range of 2 mm.
As shown in fig. 4, at the circular-arc edge 6, the angle α formed by the first rake surface 8 and the upper surface 2 is 12 °; the angle formed by the second rake face 10 at the arc and the upper surface 2 is beta, which is 22 degrees; the length of the edge width L2 of the circular arc edge 6 is 0.35 mm.
As shown in fig. 5, the angle formed by the main cutting first rake face 91 and the upper surface 2 at the first intersection is γ, γ being 8.5 °; the angle formed by the main cutting place second rake face 111 and the upper surface 2 is epsilon, which is 18.5 deg.; the length of the edge width L1 of the main cutting edge 7 is 0.3 mm.
As shown in fig. 4, the vertical distance from the chip breaker bottom surface 13 to the top plane of the first protrusion 17 is H1, and H1 is 0.22 mm.
As shown in fig. 4, the vertical distance from the top surface of the chip breaker 16 to the top plane of the first protrusion 17 is H2, and H2 is 0.25 mm.
As shown in fig. 3, in the breaker 21, a "half-moon" shaped breaker table 16 is provided outside the intersection of the breaker bottom surface 13 and the first projection 17; because the height difference exists to a certain extent between the half-moon-shaped chip breaking platform 16, the chip breaking groove bottom surface 13 and the first protruding part 17, a downward vertical arc groove-like track is formed, and the half-moon-shaped chip breaking platform 16 extends from the second front tool surface 10 at the arc part to the first protruding part 17 along the arc groove track. The arc radius R2 of the arc-like groove is 8 mm.
In blade body 1, the structural design of main cutting edge 71 and arc sword 6 is very inequality, and such structural design can make the blade depth of cut than less smart man-hour can carry out effective chip-breaking, when the great rough machining of depth of cut, because main cutting edge 71 also becomes firmer along with the increase blade intensity of degree of depth, through this kind of structural design, can be under the prerequisite of fully guaranteeing the blade sharpness, guaranteed the intensity of blade simultaneously. Meanwhile, the shock resistance of the cutting edge is ensured to a certain extent. Therefore, both the finish machining and the rough machining can be performed efficiently.
The utility model discloses a stainless steel cutting blade, the chip-breaking of its blade adopts the setting of two chip-breaking platforms, and above-mentioned two chip-breaking platforms are chip-breaking platform 16 and first jut 17. When small cutting and deep processing are carried out, the chip breaking requirement of the workpiece can be met only by using the chip breaking table 16 as a main chip breaking component during chip breaking. When large cutting depth machining is carried out, when the chip is broken by the blade, the workpiece is firstly subjected to the chip breaking effect of the chip breaking table 16, but due to the reason that the cutting depth is large and the like, the chip breaking table 16 cannot effectively break the chip of the workpiece, at the moment, the blade utilizes the first protruding part 17 to play the effect of the second chip breaking table, the good chip breaking effect is achieved during large cutting depth machining, the effect of the double chip breaking tables is achieved, and therefore the good chip breaking effect can be achieved for the blade in both rough machining and finish machining.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A stainless steel cutting insert, comprising:
the cutting insert comprises an insert body, a cutting insert body and a cutting insert body, wherein the insert body comprises an upper surface, a lower surface and side surfaces, an arc surface is arranged in the middle of each side surface, and an arc surface is also arranged at the joint of each side surface and the corresponding side surface; a positioning hole is also formed in the middle of the blade body;
the cutting units are positioned at the upper part of the vertex angle of the blade body and symmetrically distributed according to a vertex angle bisector, and each cutting unit comprises an arc edge, a main cutting edge, a secondary cutting edge and a chip breaker groove;
the main cutting edge is also sequentially provided with a main cutting position first front tool face and a main cutting position second front tool face towards the positioning hole; the secondary cutting edge is also sequentially provided with a secondary cutting position first front tool face and a secondary cutting position second front tool face towards the positioning hole; the arc blade is also sequentially provided with a first front blade surface at an arc position and a second front blade surface at the arc position towards the positioning hole;
the chip breaker is composed of a main cutting part first front cutter face, a main cutting part second front cutter face, a secondary cutting part first front cutter face, a secondary cutting part second front cutter face, an arc part first front cutter face, an arc part second front cutter face, a chip breaker unit, a chip groove, a chip breaker table and a first protrusion part; the chip breaker grooves are sequentially connected along a vertex angle bisector from the arc blade to the positioning hole in the sequence of an arc blade, a first front cutter face at the arc position, a second front cutter face at the arc position, a chip breaker groove bottom face, a chip breaker table and a first protrusion;
the arc blade is formed by intersecting a first front cutter face at the arc part with the arc surface; the main cutting edge is formed by the intersection of the side surface and the main cutting point first rake surface; the secondary cutting edge is formed by the intersection of the flank face and the secondary cutting first rake face;
and a second protruding part is arranged between the adjacent first protruding parts, the second protruding parts are distributed along the positioning hole, and the upper side of each first protruding part is an upper surface.
2. The insert according to claim 1, wherein the angle formed by the main cutting edge and the main-cutting-site first rake face is not smaller than the angle formed by the circular arc edge and the circular arc-site first rake face and not larger than the angle formed by the sub cutting edge and the sub-cutting-site first rake face.
3. The insert according to claim 1, wherein the chip breaker is in the shape of a convex sphere, the chip breaker having a radius of 0.3mm to 2 mm.
4. The insert according to claim 3, wherein the chip breaker platform is connected to the chip breaker bottom surface along a vertex bisector front end and to the first protrusion rear end, the chip breaker platform being higher than the chip breaker bottom surface and lower than the first protrusion.
5. The insert according to claim 1, wherein the first rake face at the arc forms an angle a with the upper surface, the angle a ranging from 3 ° to 18 °; the angle formed by the second rake face at the arc and the upper surface is beta, and the beta range is 10-30 degrees.
6. The insert according to claim 1, wherein the intersection of the main cutting first rake surface with the circular arc first rake surface is a first intersection point; the intersection of the first rake face at the main cutting position and the first rake face at the secondary cutting position is a second intersection point, and the angle formed by the first rake face at the main cutting position and the upper surface at the first intersection point is gamma and ranges from 2 degrees to 10 degrees; the angle formed by the second front tool face at the main cutting part and the upper surface is epsilon, and the range is 10-30 degrees; the angle formed by the first front cutter face at the secondary cutting part and the upper surface at the second intersection point is lambda and ranges from 0 degree to 5 degrees; the angle formed by the second front tool face at the secondary cutting part and the upper surface is phi, and the range is 5-20 degrees; and λ < γ, φ < ε.
7. The insert according to claim 6, wherein the distance from the first intersection point to the second intersection point of the main cutting edge is L, ranging from 1mm to 6 mm.
8. An insert according to claim 6, wherein said major cutting edge has an edge width at said first intersection of L1 in the range of 0.1mm to 0.5 mm; the edge width of the main cutting edge at the second intersection point is L2 and ranges from 0.1mm to 0.5 mm; the blade width L1 is less than the blade width L2.
9. The insert according to claim 1, wherein a perpendicular distance from a bottom surface of the chip breaker groove to a top plane of the first protrusion is H1, ranging from 0.1mm to 0.5 mm; the vertical distance from the top surface of the chip breaking table to the top plane of the first protrusion part is H2 and ranges from 0.1mm to 0.5 mm; the H1 > H2.
10. The insert according to claim 1, wherein the first rake surface at the arc is connected to the second rake surface at the arc by a first transition arc; the first front tool face at the main cutting part is connected with the second front tool face at the main cutting part through a first transition arc; the first front tool face at the secondary cutting part is connected with the second front tool face at the secondary cutting part through a first transition arc; the arc second front tool face, the main cutting second front tool face and the secondary cutting second front tool face are connected with the bottom face of the chip breaker through a second transition arc.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022412583.2U CN213794299U (en) | 2020-10-27 | 2020-10-27 | Stainless steel cutting blade |
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| CN202022412583.2U CN213794299U (en) | 2020-10-27 | 2020-10-27 | Stainless steel cutting blade |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114131064A (en) * | 2021-11-25 | 2022-03-04 | 厦门金鹭特种合金有限公司 | Turning blade for small part machining |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114131064A (en) * | 2021-11-25 | 2022-03-04 | 厦门金鹭特种合金有限公司 | Turning blade for small part machining |
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