CN114888338A - Combined blade - Google Patents
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- CN114888338A CN114888338A CN202210230899.0A CN202210230899A CN114888338A CN 114888338 A CN114888338 A CN 114888338A CN 202210230899 A CN202210230899 A CN 202210230899A CN 114888338 A CN114888338 A CN 114888338A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/02—Twist drills
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The invention provides a combined blade, mainly relates to a combined cutter for machining, and the blade has strong stability, small resistance, small abrasion, high heat dissipation efficiency, long service life, easy positioning during drilling and machining, and the application of micro-reinforcing technology on the combined blade under the condition of the same machining material, compared with the combined blade with a common structure, the combined blade at least improves the efficiency by more than one time, prolongs the service life by more than ten times, and has higher drilling precision.
Description
The technical field is as follows:
the invention relates to a combined blade, which is used in the drilling and milling process of machining and the maintenance of bench workers.
Background art:
at present, a combined blade used in machining is composed of a chisel edge, a cutting edge and a side edge, wherein the cutting edge is arranged on a cutting surface and is of a single same-position cutting structure, the cutting edge is in a centrifugal force transmission range of rotary cutting, the cutting edge is simultaneously subjected to rotary cutting force and center outward transmission force, the cutting edge at the intersection of the cutting edge and the cutting edge is always extremely easy to damage under the action of double forces, the existing hole machining tool generates a swinging phenomenon due to the fact that the structure is not absolutely balanced during drilling, the cutting surface and the cutting edge are damaged due to the fact that the tool is stabilized only by the cutting surface, the general knowledge is that the smoother surface is higher in strength, the new theory is that the surface with micro gaps is higher in strength, and the essential structural characteristics of substances are not disclosed, so that the existing hole machining tool is low in efficiency, easy to damage, poor in stability and poor in drilling precision.
The invention content is as follows:
the present invention has been made in view of the above problems, and it is an object of the present invention to provide a composite insert which has a function of blocking a transmission force, has high heat dissipation efficiency, high strength, long life, and easy positioning in drilling, and has high drilling accuracy, and it is widely known that the smoother surface is, the higher strength is in a plane having a minute gap in recent years, and the intrinsic structural characteristics of a material are not disclosed, and in the case where two solid bodies have the same volume, the surface area of the dispersed small-volume solid body is larger than that of the entire solid body, and the entire structure of the solid body is broken even if it is a diamond when it reaches a certain volume limit, and the sum of the stress strength of the small-volume solid body is larger than that of the entire solid body in the case of being stressed by volume, and it is proved by experiments that the cutting tool in a conventional physical state, the millimeter-scale has the most obvious high strength characteristic, namely millimeter strength, and the invention is applied to a combined blade with millimeter strength.
In order to achieve the purpose, the invention adopts the following technical scheme:
a combined blade is characterized in that at least two combined blades are fixed on a combined tool for machining through a screw rod, the combined blade integrally consists of at least one or a plurality of cutting direction structures, each cutting direction structure independently completes partial cutting work of the combined tool, a cutting face is formed on the face, facing the cutting direction, of the combined blade, a cutting groove is integrally formed at the bottom of the cutting face, a cutting face is formed on the face, facing the front end in the rotating direction, of the combined blade, the face, facing the rear end in the rotating direction, of the combined blade is a rear cutting face, and a cutting edge is formed by the intersection of the cutting face and the rear cutting face,
the method is characterized in that: the cutting surface of the combined blade is integrally provided with a vertical micro-reinforcing classification table along the axial direction of the rotation center of the combined cutter, and the inner side of the micro-reinforcing classification table is integrally provided with a convex classification cutting surface;
the structure of the combined blade in the cutting direction is all the structures of the combined blade which participate in cutting or auxiliary cutting on the combined cutter at the same time;
the micro-reinforcing grading table and the rear cutting surface are intersected to form a side cutting edge;
the grading cutting surface and the rear cutting surface are intersected to form a micro-reinforced cutting edge;
the combined blade is provided with a positioning hole.
A combined blade is characterized in that at least two combined blades are fixed on a combined tool for machining through a screw rod, the combined blade integrally consists of at least one or a plurality of cutting direction structures, each cutting direction structure independently completes partial cutting work of the combined tool, a cutting face is formed on the face, facing the cutting direction, of the combined blade, a cutting groove is integrally formed at the bottom of the cutting face, a cutting face is formed on the face, facing the front end in the rotating direction, of the combined blade, the face, facing the rear end in the rotating direction, of the combined blade is a rear cutting face, and a cutting edge is formed by the intersection of the cutting face and the rear cutting face,
the method is characterized in that: a plurality of vertical multistage micro-reinforcing classification tables are integrally arranged on the cutting surface of the combined blade along the direction of the rotation center of the combined cutter, and convex multistage classification cutting surfaces are integrally formed on the inner sides of the micro-reinforcing classification tables;
the structure of the cutting direction of the combined blade is all the structures of the combined blade which participate in cutting or auxiliary cutting on the combined tool simultaneously;
the micro-reinforcing grading table and the rear cutting surface are intersected to form a side cutting edge;
the grading cutting surface and the rear cutting surface are intersected to form a multi-grade micro-strengthening cutting edge;
the combined blade is provided with a positioning hole.
A combined blade is characterized in that at least two combined blades are fixed on a combined cutter for machining through a screw rod, the combined blade integrally consists of at least one or a plurality of cutting direction structures, each cutting direction structure independently completes partial cutting work of the combined cutter, a cutting face is formed on the face, facing the cutting direction, of the combined blade, a cutting groove is integrally formed at the bottom of the cutting face, a cutting face is formed on the face, facing the front end in the rotation direction, of the combined blade, a face, facing the rear end in the rotation direction, of the combined blade is a rear cutting face, and a cutting edge is formed by intersecting the cutting face and the rear cutting face,
the method is characterized in that: a plurality of vertical multistage micro-reinforcing classification tables are integrally arranged on the cutting surface of the combined blade along the direction of the rotation center of the combined cutter, and convex multistage classification cutting surfaces are integrally formed on the inner sides of the micro-reinforcing classification tables;
the structure of the cutting direction of the combined blade is all the structures of the combined blade which participate in cutting or auxiliary cutting on the combined tool simultaneously;
the micro-reinforcing grading table and the rear cutting surface are intersected to form a side cutting edge;
the grading cutting surface and the rear cutting surface are intersected to form a multi-grade micro-strengthening cutting edge;
the cutting edge of the combined blade is provided with a notch blade, and the notch blade extends towards the rear cutting surface to form a groove;
the combined blade is provided with a positioning hole.
Preferably, the one composite blade is provided with at least one step from near the axial center in a manner of descending in height on the rear cutting face of the composite blade in the direction toward the outside of the composite cutter.
Preferably, the cutting edge of the combined blade is provided with at least one notch edge,
the notch edge extends towards the rear cutting surface to form at least one groove.
Preferably, the composite blade is substantially comprised of three cutting direction triangular structures, wherein one end of each cutting direction structure is located near the central position of the composite cutter and the other end is located near the outer position of the composite cutter.
Preferably, the composite blade is substantially composed of a quadrangular structure with four cutting directions, wherein one end of each structure with four cutting directions is close to the central position of the composite cutter, and the other end of each structure with four cutting directions is close to the outer circle position of the composite cutter.
Preferably, the combined blade is provided with at least one cutting direction structure; the cutting direction structure comprises a cutting edge, or a notch edge, or a step edge.
Preferably, the one insert set is provided with a plurality of steps in such a manner that the height of the rear cutting surface decreases in the outer flank direction from the center chisel edge.
Preferably, the cutting edge of the combined blade is provided with a plurality of notch edges,
the notch blade extends towards the rear cutting surface to form a plurality of grooves.
Has the advantages that:
in a comparison experiment carried out on a drilling machine, a twist drill with the diameter of 10.15 is taken as an experiment, under the condition that the materials of the combined blades are the same, the drilling objects are forged and tempered gear finish turning processing price, the drilling depth is 35mm, blind holes are formed, and under the condition that the rotating speed and the feed amount of a common combined blade with a common structure reach the limit, the rotating speed can be increased by 35 percent, the feed amount is increased by 50 percent, the comprehensive drilling efficiency is increased by more than one time, and the drilling quantity of the combined blade is increased by at least more than ten times compared with the twist drill with the common structure.
Description of the drawings:
the technical solutions and advantages of the present invention will be described in detail by referring to the accompanying drawings, in which:
fig. 1 is a top schematic view of a triangular composite blade of the present invention.
Fig. 2 is a top schematic view of the square gang blade of the present invention.
Fig. 3 is a left side schematic view of the composite blade of the present invention.
Fig. 4 is a schematic right view of a composite blade of the present invention.
Fig. 5 is a schematic front view of a composite blade of the present invention.
Fig. 6 is a rear view schematic of the composite blade of the present invention.
The specific implementation mode is as follows:
a preferred embodiment of the composite blade 13 according to the present invention will be described in detail with reference to the accompanying drawings, and in embodiments 1 to 3, a triangular composite blade and a quadrangular composite blade having a cutting direction structure are mainly used as an example, and only one cutting direction structure of the composite blade 13 is involved in a cutting operation during each cutting process, and the other cutting direction structures belong to damage replacement.
Embodiment 1:
as shown in fig. 1-6, wherein fig. 1 is a triangular composite blade 13 provided with three cutting techniques, fig. 2 is a square composite insert 13 provided with three cutting techniques, fig. 3-6 are provided with one composite insert 13 embodiment of the first embodiment of the present invention, at least two combined blades 13 are fixed on the combined cutter for mechanical processing through a screw rod for matched cutting, the composite blade 13 is integrally composed of at least one or more cutting direction structures, each of which independently performs a part of the cutting work of the composite cutter, the combined blade 13 has a cutting surface 7 formed on the surface facing the cutting direction, a cutting groove 9 is integrally formed at the bottom of the cutting surface 7, the surface of the tip of the blade 13 facing backward in the rotation direction is a rear cutting surface 16, a cutting edge 8 is formed by the intersection of the cutting surface 7 and the rear cutting surface 16,
the structure of the cutting direction of the combined blade 13 is all the structures of the combined blade 13 which participate in cutting or auxiliary cutting on the combined tool at the same time;
the combined blade 13 only has a structure in one cutting direction to participate in cutting operation in each cutting process, and other structures in the cutting direction belong to damage replacement and are fixed by a screw rod.
A micro-reinforcing grading platform 3 is integrally and vertically arranged on the cutting surface 7 of the combined blade 13, and convex grading cutting surfaces (a micro-reinforcing central surface 2, a hole-dividing cutting surface 6 and a wear-resistant cutting surface 12 with a concave outer side) are integrally formed on the inner side of the micro-reinforcing grading platform 3;
the micro-reinforcing grading table 3 and the rear cutting surface 16 are intersected to form a micro-reinforcing side cutting edge 14;
the grading cutting surface and the rear cutting surface are intersected to form a grading cutting edge (a micro-reinforced central edge 1, a micro-reinforced hole-dividing edge 4 and a wear-resistant cutting edge 11);
the combined blade 13 is provided with a positioning hole 10.
The composite blade 13 is generally comprised of three cutting direction triangular configurations, wherein one end of each cutting direction configuration is located near the center of the composite cutter and the other end is located near the outer side of the composite cutter.
The gang tool 13 is generally comprised of four cutting direction rectangular configurations, wherein one end of each cutting direction configuration is located near the center of the gang tool and the other end is located near the outer side of the gang tool.
The combined blade 13 is provided with at least one cutting direction structure; the configuration of the cutting direction includes all configurations of the composite blade 13 that participate in cutting or auxiliary cutting simultaneously on the composite cutter.
The front end face of the combined blade 13 in the rotating direction inclines backwards and is matched with the body of the shovel drill to form an inclined plane 23.
The micro-reinforcing classification stage 3 provided on the composite blade 13 of the present invention can be divided into three setting schemes, and the three setting schemes are completely different in action and result:
the first scheme is as follows:
the composite blade 13 formed by the way that the micro-reinforcing stage 3 is erected on the cutting surface 7 rotating along the axial center and the width of the cutting surface is less than or equal to one third of the width of the composite blade 13 has the highest cutting efficiency;
a convex grading cutting surface is integrally formed on the inner side of the micro-strengthening grading table 3 to be a micro-strengthening central surface 2;
the micro-reinforcing grading table 3 and the rear cutting surface 16 intersect to form a micro-reinforcing cutting edge 1.
The micro-reinforced central surface 2 and the rear cutting surface 16 intersect to form a graded cutting edge which is a micro-reinforced central edge 1.
The second scheme is as follows:
the composite blade 13 formed by providing the rising micro reinforcing stage 3 on the cutting surface 7 of the composite blade 13 rotating along the axial center, two thirds or more and one third or more of the width thereof, has the highest drilling stability;
a convex grading cutting surface is integrally formed on the inner side of the micro-reinforcing grading table 3 and is a hole-dividing cutting surface 6;
the micro-reinforcing grading platform 3 and the rear cutting surface are intersected to form a micro-reinforcing hole-dividing blade 4.
The third scheme is as follows:
the combined blade 13 formed in such a manner that the micro-reinforcing classification stage 3 standing on the cutting surface 7 of the combined blade 13 rotating along the axial center is provided on the cutting surface with a width greater than or equal to two thirds has the longest service life of the combined blade 13;
a concave micro-reinforced cutting surface is integrally formed on the outer side of the micro-reinforced grading table 3 and is a wear-resistant cutting surface 12;
the micro-reinforcing grading table 3 and the rear cutting surface are intersected to form a micro-reinforcing side cutting edge 14;
the abrasion-resistant cutting surface 12 and the rear cutting surface 16 are intersected to form a grading cutting edge which is an abrasion-resistant cutting edge 11.
The structure that the notch edge 5 is arranged on the cutting edge of the combined blade 13 of the arrangement scheme and extends towards the rear cutting surface to form the groove can play a role in timely chip breaking, and further the efficiency is improved and the service life is prolonged.
The one composite blade 13 is provided with at least one step from the center so as to be lower in height in the rear cutting surface in the side edge direction toward the outside.
The cutting edge of the combined blade 13 is provided with at least one notch edge 5,
the recess edge 5 extends towards the rear cutting face to form at least one groove 22.
The one composite blade 13 is provided with a plurality of steps (not shown) from the center chisel edge in such a manner that the height of the rear cutting surface 164 in the direction of the outer side chisel edge 18 is lowered.
The cutting edge of the combined blade 13 is provided with a plurality of notch edges 5, and the notch edges 5 extend towards the rear cutting surface to form a plurality of grooves.
According to the structure, as the drilling cutting is circular motion, centrifugal force is generated in the circular motion process, the cutting edge forms a transmission carrier of the centrifugal force, the cutting edge is separated by the cutting surface and the adjacent micro-reinforcing grading platform 3 and the micro cutting edge, the side micro edge and the cutting micro edge formed by the intersection of the micro tangent plane with millimeter strength and the rear cutting surface, and the transmission force is differentiated, so that the integral cutting force is reduced, the stress action of the cutting edge and the cutting edge formed by the intersection of the outer side cutting surface and the rear cutting surface is reduced to the maximum extent, the temperature of the cutter head is reduced, the stress of the cutting edge at the outer end which is most vulnerable to the cutter is decomposed, the service life of the cutter is prolonged, and high strength is kept in the machining process all the time.
In a comparative experiment carried out on a drilling machine, a twist drill with the diameter of 10.5 is used as an experiment, the same is M35 cobalt-containing high-speed steel, the heat treatment is carried out simultaneously, the production is carried out in the same batch, the drilling object is the finish turning processing price of a forging quenched and tempered gear, the drilling depth is 35mm, a blind hole is formed, the micro-section width of a combined blade 13 is 1.5mm, the micro-reinforced grading platform is 3 mm high by 0.6mm, under the condition that the rotating speed and the feed rate of the twist drill with a common structure reach the limit, the rotating speed of the combined blade 13 can be increased by 35%, the feed rate is increased by 50%, the comprehensive drilling efficiency is increased by 1.05 times, the twist drill holes of the common structure are 312, the drill holes of the combined blade 13 are 3168, and the drilling quantity of the combined blade 13 is increased by more than ten times than that of the twist drill with the common structure.
According to the experimental result, the service efficiency and the service life of the twist drill are obviously greatly improved, and the structure is proved to be an effective mode for prolonging the service life and improving the efficiency.
Embodiment 2:
as shown in fig. 1 to 6, a second embodiment of the present invention, based on the first embodiment, fig. 1 of the present invention is a triangular combined blade 13 provided with three cutting techniques in combination, fig. 2 is a quadrangular combined blade 13 provided with three cutting techniques in combination, fig. 3 to 6 are a combined blade 13 embodiment of the first embodiment of the present invention, at least two combined blades 13 are fixed on a combined tool for machining through a screw for cutting in cooperation, the combined blade 13 is integrally composed of at least one or more cutting direction structures, each cutting direction structure independently completes a part of cutting work of the combined tool, the cutting surface 7 of the combined blade 13 facing the cutting direction is formed, the cutting groove 9 is integrally formed at the bottom of the cutting surface 7, the surface of the tip of the blade 13 facing backward in the rotation direction is a rear cutting surface 16, the cutting face 7 intersects the rear cutting face 16 to form a cutting edge 8,
the structure of the cutting direction of the combined blade 13 is all the structures of the combined blade 13 which participate in cutting or auxiliary cutting on the combined tool at the same time;
the combined blade 13 only has a structure in one cutting direction to participate in cutting operation in each cutting process, and other structures in the cutting direction belong to damage replacement and are fixed by a screw rod.
A multi-stage micro-reinforcing grading platform 3 is integrally and vertically arranged on the cutting surface 7 of the combined blade 13, and a convex multi-stage grading cutting surface (a micro-reinforcing central surface 2, a hole-dividing cutting surface 6 and a concave wear-resistant cutting surface 12) is integrally formed on the inner side of the micro-reinforcing grading platform 3;
the micro-reinforcing grading table 3 is intersected with the rear cutting surface to form a multi-stage micro-reinforcing side cutting edge;
the grading cutting surface and the rear cutting surface are intersected to form a multi-stage grading cutting edge;
the combined blade 13 is provided with a positioning hole and a positioning groove.
Two of the three setting schemes of the micro-reinforcing grading table 3 arranged on the combined blade 13 are combined, and the combined blade 13 arranged by the combination scheme can further improve the cutting efficiency and prolong the service life:
the first scheme is as follows:
the composite blade 13 formed by the way that the micro-reinforcing stage 3 is erected on the cutting surface 7 rotating along the axial center and the width of the cutting surface is less than or equal to one third of the width of the composite blade 13 has the highest cutting efficiency;
a convex grading cutting surface is integrally formed on the inner side of the micro-strengthening grading table 3 to be a micro-strengthening central surface 2;
the micro-reinforcing grading table 3 and the rear cutting surface 16 intersect to form a micro-reinforcing cutting edge 1.
The micro-reinforced central surface 2 and the rear cutting surface 16 intersect to form a graded cutting edge which is a micro-reinforced central edge 1.
The second scheme is as follows:
the composite blade 13 formed by providing the rising micro reinforcing stage 3 on the cutting surface 7 of the composite blade 13 rotating along the axial center, two thirds or more and one third or more of the width thereof, has the highest drilling stability;
a convex grading cutting surface is integrally formed on the inner side of the micro-reinforcing grading table 3 and is a hole-dividing cutting surface 6;
the micro-reinforcing grading platform 3 and the rear cutting surface are intersected to form a micro-reinforcing hole-dividing blade 4.
The third scheme is as follows:
the composite blade 13 formed by the way that the cutting surface 7 rotating along the axial center of the composite blade 13 is provided with the vertical micro-reinforcing classification stage 3 on the cutting surface with the width more than or equal to two thirds has the longest service life of the composite blade 13;
a concave micro-reinforced cutting surface is integrally formed on the outer side of the micro-reinforced grading table 3 and is a wear-resistant cutting surface 12;
the micro-reinforcing grading table 3 and the rear cutting surface are intersected to form a micro-reinforcing side cutting edge 14;
the abrasion-resistant cutting surface 12 and the rear cutting surface 16 are intersected to form a grading cutting edge which is an abrasion-resistant cutting edge 11.
The first scheme and the second scheme are combined to form a first combined scheme;
the first scheme and the third scheme are combined and arranged to form a second combination scheme;
the second scheme and the third scheme are combined and arranged to form a third combination scheme;
or the first scheme, the second scheme and the third scheme are combined and arranged to form a fourth combined scheme;
wherein any one of the combined schemes has more than fifty percent better performance than each of the individual schemes contained therein, including repeated placement within different widths within each scheme.
The structure that the notch edge 5 is arranged on the cutting edge of the combined blade 13 of the arrangement scheme and extends towards the rear cutting surface to form the groove can play a role in timely chip breaking, and further the efficiency is improved and the service life is prolonged.
The one composite blade 13 is provided with at least one step from the center so as to be lower in height in the rear cutting surface in the side edge direction toward the outside.
The one composite blade 13 is provided with a plurality of steps from the center so that the height of the rear cutting surface in the side edge direction toward the outside is reduced.
The cutting edge of the combined blade 13 is provided with a plurality of notch edges 5, and the notch edges 5 extend towards the rear cutting surface to form a plurality of grooves.
The stepped central surface or the hole dividing cutting surface or the micro-section with millimeter strength is axially arranged into a groove shape.
In a comparative experiment carried out on a drilling machine, a twist drill with the diameter of 10.5 is taken as an experiment, the same is M35 cobalt-containing high-speed steel, the heat treatment is carried out at the same time, the production is carried out in the same batch, the drilling object is the forging hardened and tempered gear finish turning processing price, the drilling depth is 35mm, a blind hole is formed, the micro-section width of a combined blade 13 is 1.5mm, the micro-strengthening grading table 3 is 0.6mm high, and under the condition that the rotating speed and the feed rate of the twist drill with a common structure reach the limit, the combined blade 13 can also improve the rotating speed by 35 percent, the feed rate by 50 percent, the comprehensive drilling efficiency by 1.05 times, 312 twist drill holes of the twist drill with the common structure, 5168 drill holes of the combined blade 13, and the number of the combined blade 13 are increased by more than sixteen times compared with the twist drill with the common structure.
According to the experimental result, the service efficiency and the service life of the twist drill are obviously greatly improved, and the structure is proved to be an effective mode for prolonging the service life and improving the efficiency.
Embodiment 3:
as shown in fig. 1 to 6, a third embodiment of the present invention, in addition to the first embodiment and the second embodiment, fig. 1 of the present invention is a triangular composite insert 13 provided with a combination of three cutting techniques, wherein a notch edge 5 is provided on a cutting edge of the composite insert 13, and the notch edge 5 extends to a rear cutting surface to form a groove; fig. 2 is a quadrangular composite blade 13 provided with three cutting technologies in combination, fig. 3-6 are provided with a composite blade 13 according to a third embodiment of the present invention, at least two composite blades 13 are fixed on a machining composite tool through a screw for cutting in cooperation, the composite blade 13 integrally comprises at least one or more cutting direction structures, each cutting direction structure independently performs part of the cutting work of the composite tool, the composite blade 13 has a cutting face 7 formed on the face facing the cutting direction, a cutting groove 9 is integrally formed at the bottom of the cutting face 7, the face of the tip of the blade 13 facing backward in the rotation direction is a rear cutting face 16, and the cutting face 7 and the rear cutting face 16 intersect to form a cutting edge 8,
the structure of the cutting direction of the combined blade 13 is all the structures of the combined blade 13 which participate in cutting or auxiliary cutting on the combined tool at the same time;
the combined blade 13 only has a structure in one cutting direction to participate in cutting operation in each cutting process, and other structures in the cutting direction belong to damage replacement and are fixed by a screw rod.
A multi-stage micro-reinforcing grading platform 3 is integrally and vertically arranged on the cutting surface 7 of the combined blade 13, and a convex multi-stage grading cutting surface (a micro-reinforcing central surface 2, a hole-dividing cutting surface 6 and a concave wear-resistant cutting surface 12) is integrally formed on the inner side of the micro-reinforcing grading platform 3;
the micro-reinforcing grading table 3 is intersected with the rear cutting surface to form a multi-stage micro-reinforcing side cutting edge;
the grading cutting surface and the rear cutting surface are intersected to form a multi-stage grading cutting edge;
a notch blade 5 is arranged on the cutting edge of the combined blade 13, and the notch blade 5 extends towards the rear cutting surface to form a groove;
the combined blade 13 is provided with a positioning hole and a positioning groove. The micro-reinforcing classification stage 3 provided on the composite blade 13 of the present invention can be divided into three setting schemes, and the three setting schemes are completely different in action and result:
the first scheme is as follows:
the composite blade 13 formed by the way that the micro-reinforcing stage 3 is erected on the cutting surface 7 rotating along the axial center and the width of the cutting surface is less than or equal to one third of the width of the composite blade 13 has the highest cutting efficiency;
a convex grading cutting surface is integrally formed on the inner side of the micro-strengthening grading table 3 to be a micro-strengthening central surface 2;
the micro-reinforcing grading table 3 and the rear cutting surface 16 intersect to form a micro-reinforcing cutting edge 1.
The micro-reinforced central surface 2 and the rear cutting surface 16 intersect to form a graded cutting edge which is a micro-reinforced central edge 1.
The second scheme is as follows:
the composite blade 13 formed by providing the rising micro reinforcing stage 3 on the cutting surface 7 of the composite blade 13 rotating along the axial center, two thirds or more and one third or more of the width thereof, has the highest drilling stability;
a convex grading cutting surface is integrally formed on the inner side of the micro-reinforcing grading table 3 and is a hole-dividing cutting surface 6;
the micro-reinforcing grading platform 3 and the rear cutting surface are intersected to form a micro-reinforcing hole-dividing blade 4.
The third scheme is as follows:
the composite blade 13 formed by the way that the cutting surface 7 rotating along the axial center of the composite blade 13 is provided with the vertical micro-reinforcing classification stage 3 on the cutting surface with the width more than or equal to two thirds has the longest service life of the composite blade 13;
a sunken micro-reinforced cutting surface is integrally formed on the outer side of the micro-reinforced classification platform 3 and is a wear-resistant cutting surface 12;
the micro-reinforcing grading table 3 and the rear cutting surface are intersected to form a micro-reinforcing side cutting edge 14;
the abrasion-resistant cutting surface 12 and the rear cutting surface 16 are intersected to form a grading cutting edge which is an abrasion-resistant cutting edge 11.
The first scheme and the second scheme are combined to form a first combination scheme;
the first scheme and the third scheme are combined and arranged to form a second combination scheme;
the second scheme and the third scheme are combined to form a third combination scheme;
or the first scheme, the second scheme and the third scheme are combined and arranged to form a fourth combined scheme;
in the different schemes or different combination schemes, the structure that the notch edge 5 is arranged on the cutting edge and extends towards the rear cutting surface to form a groove can play a role in timely chip breaking.
The structure that the notch edge 5 is arranged on the cutting edge of the combined blade 13 of different combination schemes and extends towards the rear cutting surface to form a groove can play a role in timely chip breaking, and further the efficiency is improved and the service life is prolonged.
The one composite blade 13 is provided with at least one step from the center so as to be lower in height in the rear cutting surface in the side edge direction toward the outside.
The cutting edge of the combined blade 13 is provided with at least one notch edge 5,
the recess edge 5 extends towards the rear cutting face to form at least one groove 17.
The one composite blade 13 is provided with a plurality of steps from the center so that the height of the rear cutting surface in the side edge direction toward the outside is reduced.
The cutting edge of the combined blade 13 is provided with a plurality of notch edges 5, and the notch edges 5 extend towards the rear cutting surface to form a plurality of grooves 17.
The stepped central surface or the hole dividing cutting surface or the micro-section with millimeter strength is axially arranged into a groove shape.
In the comparative experiment carried out on a drilling machine, a twist drill with the diameter of 10.5 is used as an experiment, the same is M35 cobalt-containing high-speed steel, the heat treatment is carried out simultaneously, the production is carried out in the same batch, the drilling object is the finish turning processing price of a forging quenched and tempered gear, the drilling depth is 35mm, a blind hole is formed, the micro-section width of a combined blade 13 is 1.5mm, the micro-reinforced grading platform is 3 mm high by 0.6mm, under the condition that the rotating speed and the feed rate of the twist drill with a common structure reach the limit, the rotating speed of the combined blade 13 can be increased by 35%, the feed rate is increased by 50%, the comprehensive drilling efficiency is increased by 1.05 times, the twist drill with the common structure has 312 holes, the combined blade 13 has 6268 holes, and the drilling quantity of the combined blade 13 is increased by twenty times more than that of the twist drill with the common structure.
According to the experimental result, the service efficiency and the service life of the twist drill are obviously greatly improved, and the structure is proved to be an effective mode for prolonging the service life and improving the efficiency.
Although the above description has been made by taking as an example the triangular composite insert 13 integrally having the 3 cutting directions and the quadrangular composite insert 13 integrally having the 3 cutting directions, the composite insert 13 of the present invention is provided in a structure of 1 or two or more cutting directions, and the structure of the above-described embodiment and other various combinations thereof can be adopted in the structure of each cutting direction.
The preferred embodiments described above are illustrative rather than limiting and the invention may be embodied and carried out in other ways without departing from the spirit and essential characteristics thereof, the scope of the invention being indicated by the claims and all changes that come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (10)
1. A combined blade is characterized in that at least two combined blades are fixed on a combined cutter for machining through a screw rod, the combined blade integrally consists of at least one or a plurality of cutting direction structures, each cutting direction structure independently completes partial cutting work of the combined cutter, a cutting face is formed on the face, facing the cutting direction, of the combined blade, a cutting groove is integrally formed at the bottom of the cutting face, a cutting face is formed on the face, facing the front end in the rotation direction, of the combined blade, a face, facing the rear end in the rotation direction, of the combined blade is a rear cutting face, and a cutting edge is formed by intersecting the cutting face and the rear cutting face,
the method is characterized in that: the cutting surface of the combined blade is integrally provided with a vertical micro-reinforcing classification table along the axial direction of the rotation center of the combined cutter, and the inner side of the micro-reinforcing classification table is integrally provided with a convex classification cutting surface;
the structure of the cutting direction of the combined blade is all the structures of the combined blade which participate in cutting or auxiliary cutting on the combined tool simultaneously;
the micro-reinforcing grading table and the rear cutting surface are intersected to form a side cutting edge;
the grading cutting surface and the rear cutting surface are intersected to form a micro-reinforced cutting edge;
the combined blade is provided with a positioning hole.
2. A combined blade is characterized in that at least two combined blades are fixed on a combined tool for machining through a screw rod, the combined blade integrally consists of at least one or a plurality of cutting direction structures, each cutting direction structure independently completes partial cutting work of the combined tool, a cutting face is formed on the face, facing the cutting direction, of the combined blade, a cutting groove is integrally formed at the bottom of the cutting face, a cutting face is formed on the face, facing the front end in the rotating direction, of the combined blade, the face, facing the rear end in the rotating direction, of the combined blade is a rear cutting face, and a cutting edge is formed by the intersection of the cutting face and the rear cutting face,
the method is characterized in that: a plurality of vertical multistage micro-reinforcing classification tables are integrally arranged on the cutting surface of the combined blade along the direction of the rotation center of the combined cutter, and convex multistage classification cutting surfaces are integrally formed on the inner sides of the micro-reinforcing classification tables;
the structure of the cutting direction of the combined blade is all the structures of the combined blade which participate in cutting or auxiliary cutting on the combined tool simultaneously;
the micro-reinforcing grading table and the rear cutting surface are intersected to form a side cutting edge;
the grading cutting surface and the rear cutting surface are intersected to form a multi-grade micro-strengthening cutting edge;
the combined blade is provided with a positioning hole.
3. A combined blade is characterized in that at least two combined blades are fixed on a combined tool for machining through a screw rod, the combined blade integrally consists of at least one or a plurality of cutting direction structures, each cutting direction structure independently completes partial cutting work of the combined tool, a cutting face is formed on the face, facing the cutting direction, of the combined blade, a cutting groove is integrally formed at the bottom of the cutting face, a cutting face is formed on the face, facing the front end in the rotating direction, of the combined blade, the face, facing the rear end in the rotating direction, of the combined blade is a rear cutting face, and a cutting edge is formed by the intersection of the cutting face and the rear cutting face,
the method is characterized in that: a plurality of vertical multistage micro-reinforcing classification tables are integrally arranged on the cutting surface of the combined blade along the direction of the rotation center of the combined cutter, and convex multistage classification cutting surfaces are integrally formed on the inner sides of the micro-reinforcing classification tables;
the structure of the cutting direction of the combined blade is all the structures of the combined blade which participate in cutting or auxiliary cutting on the combined tool simultaneously;
the micro-reinforcing grading table and the rear cutting surface are intersected to form a side cutting edge;
the grading cutting surface and the rear cutting surface are intersected to form a multi-grade micro-strengthening cutting edge;
the cutting edge of the combined blade is provided with a notch blade, and the notch blade extends towards the rear cutting surface to form a groove;
the combined blade is provided with a positioning hole.
4. A composite blade according to any one of claims 1 to 3,
the method is characterized in that: the combined blade is provided with at least one step from the position close to the axial center in a mode of reducing the height of the rear cutting surface of the combined blade towards the outer side direction of the combined cutter.
5. A composite blade according to any one of claims 1-2,
the method is characterized in that: the cutting edge of the combined blade is provided with at least one notch edge,
the notch edge extends towards the rear cutting surface to form at least one groove.
6. A composite blade according to any one of claims 1 to 3,
the method is characterized in that: the composite blade is generally comprised of three cutting direction triangular structures, wherein one end of each cutting direction structure is located near the center of the composite cutter and the other end is located near the outer side of the composite cutter.
7. A composite blade according to any one of claims 1 to 3,
the method is characterized in that: the combined blade is mainly composed of a quadrangular structure with four cutting directions, wherein one end of each structure with the four cutting directions is close to the central position of the combined cutter, and the other end of each structure with the four cutting directions is close to the outer circle position of the combined cutter.
8. A composite blade according to any one of claims 1 to 3,
the method is characterized in that: the combined blade is provided with at least one cutting direction structure; the cutting direction structure comprises a cutting edge, or a notch edge, or a step edge.
9. A composite blade according to any one of claims 1 to 3,
the method is characterized in that: the one insert set is provided with a plurality of steps from a center chisel edge so that the height of a rear cutting surface in the direction of an outer side chisel edge is reduced.
10. A composite blade according to any one of claims 1 to 3,
the method is characterized in that: the cutting edge of the combined blade is provided with a plurality of concave cutting edges,
the notch blade extends towards the rear cutting surface to form a plurality of grooves.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210230899.0A CN114888338A (en) | 2022-03-08 | 2022-03-08 | Combined blade |
| PCT/CN2023/080308 WO2023169471A1 (en) | 2022-03-08 | 2023-03-08 | Spade drill blade and combination blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210230899.0A CN114888338A (en) | 2022-03-08 | 2022-03-08 | Combined blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114888338A true CN114888338A (en) | 2022-08-12 |
Family
ID=82715057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210230899.0A Pending CN114888338A (en) | 2022-03-08 | 2022-03-08 | Combined blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114888338A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023169471A1 (en) * | 2022-03-08 | 2023-09-14 | 李仕清 | Spade drill blade and combination blade |
-
2022
- 2022-03-08 CN CN202210230899.0A patent/CN114888338A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023169471A1 (en) * | 2022-03-08 | 2023-09-14 | 李仕清 | Spade drill blade and combination blade |
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