CN113042796B

CN113042796B - Air-through type annular milling cutter based on CNC control

Info

Publication number: CN113042796B
Application number: CN202110186330.4A
Authority: CN
Inventors: 赵行
Original assignee: Zhuzhou Huaxin Hard Alloy Tool Co ltd
Current assignee: ZHUZHOU HUAXIN HARD ALLOY TOOL Co.,Ltd.
Priority date: 2021-02-17
Filing date: 2021-02-17
Publication date: 2022-04-01
Anticipated expiration: 2041-02-17
Also published as: CN113042796A

Abstract

The invention discloses an air-through type annular milling cutter based on CNC control, which belongs to the field of machine tool cutters, and is characterized in that through the arrangement of heat dissipation channels communicated with the inside and the outside of a cutter body, when in use, a heat conduction bifurcated pipe guides heat towards a heat transfer cavity, so that the heat is effectively prevented from being accumulated at a cutting edge, when the annular milling cutter rotates at a high speed, a plurality of air-stirring variable beads of an air-through bead move towards a direction far away from a rotating rod under the action of centrifugal force, the centrifugal force is reduced or disappeared, the plurality of air-stirring variable beads are quickly pulled back to the center of the cutter body under the action of a pull back rope, and the air-stirring variable beads move repeatedly for many times under the action of elasticity, so that the outward circulation speed of air in the heat transfer cavity is effectively accelerated, compared with the prior art, the outward dissipation of heat in the cutter body is obviously accelerated, and the cutter body is further effectively protected from being damaged due to heat accumulation, and simultaneously, the edge of the cut article is effectively protected from being deformed easily.

Description

Air-through type annular milling cutter based on CNC control

Technical Field

The invention relates to the field of machine tool cutters, in particular to a gas-through annular milling cutter based on CNC control.

Background

A computer numerical control machine tool is an automatic machine tool provided with a program control system. The control system is capable of logically processing a program defined by a control code or other symbolic instructions and decoding the program to operate the machine tool to machine a part. The English is abbreviated as CNC, which is an abbreviation of English Computerized Numerical Control, and is also called Numerical Control machine tool and Numerical Control lathe.

Compared with a common machine tool, the numerical control machine tool has the following characteristics:

the processing precision is high, and the stable processing quality is achieved;

the multi-coordinate linkage can be carried out, and parts with complex shapes can be processed;

when the machined part is changed, only the numerical control program is generally required to be changed, so that the production preparation time can be saved;

the machine tool has high precision and rigidity, can select favorable processing dosage and has high productivity (generally 3 to 5 times of that of a common machine tool);

the machine tool has high automation degree, and can reduce the labor intensity;

the requirement on the quality of operators is high, and the technical requirement on maintenance personnel is high.

A annular milling cutter for numerical control lathe needs high-speed the rotation when using to accomplish the cutting of work piece, however at this in-process, annular milling cutter's cutting part can generate heat, in the cutting process that lasts, the heat can rise the gathering gradually, lead to annular milling cutter's cutting part very easily to be damaged on the one hand, lead to annular milling cutter's practical life to reduce, on the other hand, annular milling cutter who gathers thermal mass is when cutting the work piece that the fusing point is lower, very easily cause the cutting plane of work piece to take place certain deformation, cause cutting quality very poor, the defective percentage improves.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems in the prior art, the invention aims to provide a CNC control-based air-through type annular milling cutter, which is characterized in that through the arrangement of heat dissipation channels communicated with the inside and the outside of a cutter body, the heat conduction bifurcated pipe guides heat towards the heat transfer cavity, thereby effectively avoiding the heat from being accumulated at the blade, when the annular milling cutter rotates at high speed, the plurality of gas-stirring variable beads of the gas-communicating bead move towards the direction far away from the rotating rod under the action of centrifugal force, when the centrifugal force becomes smaller or disappears, the plurality of air-stirring variable beads are quickly pulled back to the center of the knife body under the action of the pull-back rope, and the air-stirring variable beads move repeatedly for a plurality of times under the action of elasticity, thereby effectively accelerating the outward circulation speed of air in the heat transfer cavity, obviously accelerating the outward dissipation of heat in the cutter body compared with the prior art, thereby effectively protecting the cutter body from being damaged due to heat accumulation and effectively protecting the edge of a cut article from being deformed.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

A gas-through type annular milling cutter based on CNC control comprises a cutter body, wherein a rotating rod is fixedly connected to the middle of the cutter body, the rotating rod is installed on a machine tool, a porous hard layer is fixedly embedded in the middle of the rotating rod, a heat transfer cavity is formed in the cutter body, the heat transfer cavity is communicated with the outside through the porous hard layer, so that an inner heat dissipation channel and an outer heat dissipation channel are formed, a plurality of heat conduction branch pipes are fixedly embedded in the middle of the cutter body and comprise a heat conduction rod, a plurality of heat absorption side rods fixedly connected to the end portion of the heat conduction rod and a heat accumulation ball fixedly connected to one end, far away from the rotating rod, of the heat conduction rod, the end portion, far away from the heat accumulation ball, of the heat conduction rod penetrates through the cutter body and extends into the heat transfer cavity, the end portion, located in the heat transfer cavity, of the heat conduction rod and the porous hard layer are fixedly connected, an outer end cover, located in the heat transfer cavity, is provided with a gas-through bead, and the heat dissipation channel is communicated with the inside and outside of the cutter body, during the use, the heat conduction bifurcated pipe leads the heat towards the heat transfer intracavity, effectively avoid the heat gathering in cutting edge department, this annular milling cutter is when high-speed rotating, the gas becomes the pearl orientation and keeps away from the direction removal of dwang at a plurality of gas of dialling of air-passing beading under the centrifugal force effect, diminish or disappear at centrifugal force, under the effect of pull-back rope, a plurality of gas of dialling become pearl and are drawn back cutter body center department fast, and under the elastic action, dial the gas and become the removal that the pearl takes place to relapse many times, thereby effectively accelerate the outside circulation speed of heat transfer intracavity air, compare in prior art, show and accelerate the outside diffusion of heat in the cutter body, and then effectively protect the cutter body and be difficult for damaging because of the heat gathering, effectively protect its edge of cutting article simultaneously and be difficult for deformation.

Further, heat conduction pole, heat absorption side lever and heat gathering ball are stereoplasm heat conduction material and make, effectively guide this annular milling cutter heat that produces when the cutting is rotated at high speed, make this heat move towards heat transfer chamber department, effectively avoid the heat gathering in cutting edge department, effectively accelerate inside heat outside simultaneously and give off.

Further, the gas leads to string of beads include that a plurality of movable sleeves establish on the heat conduction pole dial gas become the pearl, be located a plurality of gas of dialling become the pearl keep away from the edge of dwang one side and slowly the pearl, the edge is slowly the pearl cover and is established on the heat conduction pole.

Further, adjacent two it becomes between the pearl to dial gas, it becomes between pearl and the porous hard layer and the edge is slowed the pearl and is changed between the pearl and the pearl to dial gas of keeping away from dwang one side most to dial gas of dwang one side and become between the rope all fixedly connected with, when this annular milling cutter rotates at a high speed, a plurality of gas that air-flow becomes the pearl orientation and keeps away from the direction removal of dwang under the centrifugal force effect, when its stall or rotational speed reduce, centrifugal force diminishes or disappears, the deformation is resumeed to the pull back rope this moment, pull a plurality of gas of dialling becomes the pearl and get back to cutter body center department fast, at this in-process, the outside circulation speed of the interior air of heat transfer chamber is effectively accelerated, compared with prior art, the outside diffusion of heat in the cutter body is obviously accelerated, and then effectively protect the cutter body to be difficult for damaging because of heat gathering, effectively protect its edge of cutting article to be difficult for deformation simultaneously.

Further, the pearl is slowly made to the edge with the pull back rope elastic material, and along the elasticity of keeping away from a plurality of pull back ropes of direction of dwang diminishes gradually, along the direction of keeping away from the dwang, a plurality of gas of dialling become the distance of pearl distance from heat transfer chamber top and shorten more and more, and its distance that receives centrifugal force to move is also shorter relatively, and elasticity that diminishes gradually can adapt to its actual displacement and weak point, characteristics that the deformation scope is little.

Further, it becomes the pearl and includes that the sandwich decides the layer and wrap up the indent change layer of deciding the layer outer end at the sandwich, the sandwich is decided about the layer both ends all become gas with the indent between becoming the layer and is returned the chamber, gas returns fixedly connected with evagination vaulting pole between the upper and lower inner wall in chamber, under centrifugal force, a plurality ofly dials the one end gathering that the pearl all moves towards keeping away from the dwang of gas change to present the mutual extruded state, make gas return the chamber vertically extruded, when centrifugal force diminishes or disappears, gas returns the circumstances that the chamber resumes plumpneumatics, thereby can become the pearl to its adjacent gas of dialling and produce thrust, thereby effectively assist the effect of returning the stay cord, make the gas of dialling become the pearl and be close to dwang department gradually.

Further, the indent becomes the layer and makes for high resilience material, the layer is decided for hard material to the sandwich, and the gas returns the intracavity and is filled with saturated air, and the extruded gas that receives of being convenient for returns the chamber and can resume deformation fast, and when centrifugal force disappears, the supplementary gas of dialling becomes pearl and moves towards dwang department to drive the moving speed of the hot intracavity hot air of commentaries on classics towards porous hard bed department, make the radiating efficiency higher.

Further, the evagination vaulting pole includes that two return the chamber about with gas respectively and prop the bullet strip and a plurality of connection prop the repulsion post between two outer bullet strips of propping back with the outer of inner wall fixed connection outward, the evagination vaulting pole is used for supporting on the one hand, when making a plurality of gas of dialling become the pearl and be close to each other, the inside sunken degree in chamber is returned to effective control gas, it is difficult for the condition emergence of the original state that is difficult to restore to the original state because of deformation to make the indent change layer, on the other hand, a plurality of repulsion posts transversely outwards bulge during the atress, make its self can produce great resilience, effective supplementary gas returns the chamber and restores to deform.

Further, the repulsion post is the strip structure of evagination, and the repulsion post is made for high resilience material, preferred stainless steel material, prop outward the resilience strip and make for magnetic material, and two are propped outward the one end magnetic pole that the resilience strip is close to each other the same, make to have certain repulsion between the two, further restrict the deformation degree that the chamber atress was caved in to the gas.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that:

(1) this scheme is through the setting of the heat dissipation channel of intercommunication each other inside and outside the cutter body, during the use, the heat conduction bifurcated pipe leads the heat towards the heat transfer intracavity, effectively avoid the heat gathering in cutting edge department, this annular milling cutter is when high-speed rotating, a plurality of gas conduction string of beads become the direction removal of pearl orientation keeping away from the dwang under the centrifugal force effect, diminish or disappear at centrifugal force, under the effect of pull-back rope, a plurality of gas of dialling become the pearl and are pulled back cutter body center department fast, and under the elastic action, dial the gas and become the pearl and take place the removal of relapse many times, thereby effectively accelerate the outside circulation speed of heat transfer intracavity air, compare in prior art, show and accelerate the outside giving off of heat in the cutter body, and then effectively protect the cutter body and be difficult for damaging because of the heat gathering, effectively protect the edge of its cutting article to be difficult for deformation simultaneously.

(2) The heat conducting rod, the heat absorption side rod and the heat gathering ball are made of hard heat conducting materials, heat generated by the annular milling cutter during high-speed rotation cutting is effectively guided, the heat moves towards the heat transferring cavity, heat gathering at the cutting edge is effectively avoided, and meanwhile, outward dissipation of internal heat is effectively accelerated.

(3) The bead string comprises a plurality of movable sleeves, gas-stirring variable beads, edge slow beads and edge slow beads, wherein the gas-stirring variable beads are arranged on the heat conducting rod in a sleeved mode, the edge slow beads are located on one side, away from the rotating rod, of the plurality of gas-stirring variable beads, and the edge slow beads are arranged on the heat conducting rod in a sleeved mode.

(4) Two adjacent gas of dialling become between the pearl, the gas of dialling that is closest to dwang one side becomes between pearl and the porous hard layer and the edge slows the pearl and becomes the equal fixedly connected with between the pearl with dialling that keeps away from dwang one side most and restrict to pull back the rope, when this annular milling cutter rotates at a high speed, the gas of a plurality of gas of logical string of beads of dialling moves towards the direction of keeping away from the dwang under the centrifugal force effect, when its stall or rotational speed reduce, centrifugal force diminishes or disappears, pull back the rope and resume deformation this moment, it becomes pearl and gets back to cutter body center department fast to pull a plurality of gas of dialling, at this in-process, the outside circulation speed of the interior air of heat transfer chamber is effectively accelerated, compare in prior art, the outside diffusion of the heat in the cutter body is accelerated to showing, and then effectively protect the cutter body to be difficult for damaging because of heat gathering, the difficult deformation in edge of its cutting article of effective protection simultaneously.

(5) The pearl is slowly made to the edge with the pull back rope elastic material, and along the elasticity of keeping away from a plurality of pull back ropes of direction of dwang diminishes gradually, along the direction of keeping away from the dwang, a plurality of gas of dialling become the pearl apart from the distance at heat transfer chamber top and shorten more and more, its distance that receives centrifugal force to move also relatively shorter, and the elasticity that diminishes gradually can adapt to its actual displacement and weak point, characteristics that the deformation range is little.

(6) Dial gas and become the pearl and decide the layer and wrap up the indent change layer of deciding the layer outer end at the sandwich including the sandwich, the sandwich is decided the layer about both ends all become gas return chamber with the indent between becoming the layer, gas returns fixedly connected with evagination vaulting pole between the upper and lower inner wall in chamber, under the centrifugal force effect, a plurality ofly dial gas and become the pearl and all move towards the one end gathering of keeping away from the dwang, thereby present mutual extruded state, make gas return chamber vertically extruded, when centrifugal force diminishes or disappears, gas returns the circumstances that the chamber resumes plumpneumatics, thereby can become the pearl to its adjacent dialling gas and produce thrust, thereby effectively assist the effect of returning the stay cord, make it become the pearl and be close to dwang department gradually to dial gas.

(7) The indent becomes the layer and makes for high resilience material, and the sandwich is decided the layer and is made for hard material, and the intracavity is returned to gas and is filled with saturated air, and the extruded gas that receives of being convenient for returns the chamber and can resume deformation fast, is convenient for when centrifugal force disappears, and the supplementary gas of dialling becomes pearl and moves towards dwang department to drive the moving speed of the hot intracavity hot air of commentaries on classics towards porous hard layer department, make the radiating efficiency higher.

(8) Outer evagination vaulting pole includes that two return the chamber about inner wall fixed connection's outer prop back the elastic strip and a plurality of connection prop back the repulsion post between the elastic strip with gas respectively and prop outward, outer evagination vaulting pole is used for supporting on the one hand, when making a plurality of gas of dialling become the pearl and be close to each other, the inside sunken degree in chamber is returned to effective control gas, make the inside sunken degree that the layer is difficult for taking place because of the too big condition that is difficult to the reconversion of deformation, on the other hand, a plurality of repulsion posts transversely outwards bulge during the atress, make its self can produce great resilience force, effective helping gas returns the chamber and recovers deformation.

(9) The repulsion post is the strip structure of evagination, and the repulsion post is made for high resilience material, preferred stainless steel material, props outward the resilience strip and makes for magnetic material, and two prop the one end magnetic pole that resilience strip is close to each other outward the same, make to have certain repulsion between the two, further restrict the deformation degree that the chamber atress is caved in to the gas.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic perspective view of the present invention;

FIG. 3 is a schematic structural view in partial cross section of the present invention;

FIG. 4 is a schematic structural view of a bead portion of the present invention;

FIG. 5 is a schematic structural view of the gas-repelling variable beads of the present invention;

FIG. 6 is a schematic structural view of the outer convex stay bar of the present invention.

The reference numbers in the figures illustrate:

the device comprises a knife body 1, a rotating rod 2, a porous hard layer 21, a heat transfer cavity 3, a gas-stirring variable bead 41, a sandwich fixed layer 411, an inward concave variable layer 412, a bead buffering edge 42, a heat conducting rod 51, a heat absorbing side rod 52, a heat collecting ball 53, an outward convex support rod 6, an outward supporting elastic strip 61, a repulsive force column 62 and a pull rope 7.

Detailed Description

The drawings in the embodiments of the invention will be combined; the technical scheme in the embodiment of the invention is clearly and completely described; obviously; the described embodiments are only some of the embodiments of the invention; but not all embodiments, are based on the embodiments of the invention; all other embodiments obtained by a person skilled in the art without making any inventive step; all fall within the scope of protection of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1:

referring to fig. 1-2, an air-through type annular milling cutter based on CNC control comprises a cutter body 1, a rotating rod 2 is fixedly connected to the middle of the cutter body 1, the rotating rod 2 is mounted on a machine tool, a porous hard layer 21 is fixedly embedded in the middle of the rotating rod 2, a heat transfer cavity 3 is chiseled in the cutter body 1, and the heat transfer cavity 3 is communicated with the outside through the porous hard layer 21, so that a heat dissipation channel with the inside and the outside communicated is formed.

Referring to fig. 3, a plurality of heat-conducting bifurcated pipes are fixedly embedded in the middle of the cutter body 1, each heat-conducting bifurcated pipe includes a heat-conducting rod 51, a plurality of heat-absorbing side rods 52 fixedly connected to the end of the heat-conducting rod 51 and a heat-collecting ball 53 fixedly connected to one end of the heat-conducting rod 51 far away from the rotating rod 2, the end of the heat-conducting rod 51 far away from the heat-collecting ball 53 penetrates through the cutter body 1 and extends into the heat-transferring cavity 3, the end of the heat-conducting rod 51 located in the heat-transferring cavity 3 is fixedly connected with the porous hard layer 21, the heat-conducting rod 51, the heat-absorbing side rods 52 and the heat-collecting ball 53 are made of hard heat-conducting materials, heat generated by the annular milling cutter during high-speed rotation cutting is effectively guided, the heat moves towards the heat-transferring cavity 3, heat is effectively prevented from being collected at a cutting edge, and meanwhile, outward dissipation of internal heat is effectively accelerated.

Referring to fig. 4, the outer end of the heat conducting rod 51 in the heat transferring cavity 3 is sleeved with an air passing bead, the air passing bead includes a plurality of air-stirring variable beads 41 movably sleeved on the heat conducting rod 51, an edge slow bead 42 positioned on one side of the plurality of air-stirring variable beads 41 far away from the rotating rod 2, the edge slow bead 42 is sleeved on the heat conducting rod 51, a plurality of pairs of pull-back ropes 7 are fixedly connected between two adjacent air-stirring variable beads 41, between the air-stirring variable bead 41 closest to one side of the rotating rod 2 and the porous hard layer 21, and between the edge slow bead 42 and the air-stirring variable bead 41 farthest away from one side of the rotating rod 2, when the ring mill rotates at a high speed, the plurality of air-stirring variable beads 41 of the air passing bead move towards the direction far away from the rotating rod 2 under the effect of centrifugal force, when the ring mill stops rotating or the rotating speed is reduced, the centrifugal force is reduced or disappeared, at the moment, the pull-back rope 7 recovers deformation, the plurality of air-stirring variable beads 41 return to the center of the cutter body 1, and under the elastic action, dial gas and become pearl 41 and take place the removal of relapse many times, in this process, the outside circulation speed of air in the heat transfer chamber 3 effectively accelerates, compare in prior art, it gives vent to the outside of heat in the cutter body 1 to show and accelerate, and then effectively protect cutter body 1 to be difficult for damaging because of the heat gathering, effectively protect its edge of cutting article simultaneously and be difficult for deformation, edge slow pearl 42 and pull back rope 7 are elastic material and make, and the elasticity of a plurality of pull back ropes 7 diminishes gradually along the direction of keeping away from dwang 2, the distance that a plurality of gas of dialling become pearl 41 apart from the heat transfer chamber 3 top is more and more short, its distance that moves that receives the centrifugal force effect is also shorter relatively, the elasticity that diminishes can adapt to its actual displacement is short, the characteristics that the deformation scope is little.

Referring to fig. 5, the gas-stirring variable beads 41 include a sandwich fixed layer 411 and an inner concave variable layer 412 wrapped at the outer end of the sandwich fixed layer 411, gas return cavities are enclosed between the upper and lower ends of the sandwich fixed layer 411 and the inner concave variable layer 412, and an outer convex support rod 6 is fixedly connected between the upper and lower inner walls of the gas return cavities, under the action of centrifugal force, a plurality of gas-stirring variable beads 41 are gathered towards one end away from the rotating rod 2, so as to present a mutual extrusion state, so that the gas return cavities are longitudinally extruded, when the centrifugal force decreases or disappears, the gas return cavities recover to be full, so as to generate thrust to the adjacent gas-stirring variable beads 41, thereby effectively assisting the function of the pull rope 7, so that the gas-stirring variable beads 41 gradually approach to the rotating rod 2, the inner concave variable layer 412 is made of a high-resilience material, the sandwich fixed layer 411 is made of a hard material, and saturated air is filled in the gas return cavities, so that the extruded gas return cavities can be rapidly recovered, when centrifugal force disappears, the auxiliary air-stirring variable beads 41 move towards the rotating rod 2, so that the moving speed of hot air in the heat transfer cavity 3 towards the porous hard layer 21 is driven, and the heat dissipation efficiency is higher.

Referring to fig. 6, the outward-protruding brace 6 includes two outward-supporting resilient bars 61 fixedly connected to the upper and lower inner walls of the gas return cavity, respectively, and a plurality of repulsion columns 62 connected between the two outward-supporting resilient bars 61, the outward-protruding brace 6 is used for supporting, so that when the plurality of gas-stirring variable beads 41 approach each other, the inward-recessed degree of the gas return cavity is effectively controlled, and the inward-recessed variable layer 412 is not easily deformed to be hard to restore, and on the other hand, when the force is applied, the plurality of repulsion columns 62 laterally protrude outward, so that they generate a larger rebound force to effectively assist the gas return cavity to deform, the repulsion columns 62 are of outward-protruding strip structure, and the repulsion columns 62 are made of high-resilience material, preferably stainless steel material, the outward-supporting resilient bars 61 are made of magnetic material, and the magnetic poles of the ends of the two outward-supporting resilient bars 61 close to each other are the same, so that a certain repulsion force exists between the two outward-supporting resilient bars, further limiting the deformation degree of the air return cavity when the air return cavity is stressed and invaginated.

Through the setting of the heat dissipation channel of intercommunication each other inside and outside cutter body 1, during the use, the heat conduction bifurcated pipe guides heat towards heat transfer chamber 3, effectively avoid the heat gathering in cutting edge department, this annular milling cutter is when high-speed rotation, the direction that dwang 2 was kept away from to a plurality of qi of dialling of air circulation string bead under the centrifugal force effect becomes 41 orientation and removes, diminish or disappear at centrifugal force, under the effect of pull-back rope 7, a plurality of qi of dialling become 41 pearls are drawn back cutter body 1 center department fast, and under the elastic action, it changes the pearl 41 removal that takes place repetitions many times to dial qi, thereby effectively accelerate the outside circulation speed of the interior air of heat transfer chamber 3, compare in prior art, show and accelerate the outside diffusion of heat in cutter body 1, and then effectively protect cutter body 1 to be difficult because of the heat gathering and damage, effectively protect the difficult edge deformation of its cutting article simultaneously.

The above; but are merely preferred embodiments of the invention; the scope of the invention is not limited thereto; any person skilled in the art is within the technical scope of the present disclosure; the technical scheme and the improved concept of the invention are equally replaced or changed; are intended to be covered by the scope of the present invention.

Claims

1. The utility model provides an annular milling cutter of gas traffic type based on CNC control, includes cutter body (1), cutter body (1) middle part fixedly connected with dwang (2), dwang (2) are installed on the lathe, its characterized in that: dwang (2) middle part is fixed to be inlayed and is had porous hard layer (21), cutter body (1) inside division chisel has commentaries on classics hot chamber (3), commentaries on classics hot chamber (3) communicate with each other with the external world through porous hard layer (21), cutter body (1) middle part is fixed to be inlayed and is had a plurality of heat conduction bifurcated pipe, heat conduction bifurcated pipe includes heat-conducting rod (51), a plurality of fixed connection and keeps away from gather hot ball (53) of dwang (2) one end at heat-conducting rod (51) heat absorption side lever (52) and fixed connection of heat-conducting rod (51) tip, the tip that gathers hot ball (53) is kept away from in heat-conducting rod (51) runs through cutter body (1) and extends to commentaries on classics hot chamber (3) in, and heat-conducting rod (51) are located the tip and porous hard layer (21) fixed connection that change hot chamber (3) in commentaries on classics, the outer pot head that heat-conducting rod (51) are located commentaries on classics hot chamber (3) is equipped with gas and leads to lead to a string of beads, gas is established and is equipped with the pearl (41) including a plurality of moving about on classics gas on one's on the heat-pole (51), gas is established and is changeed, Be located a plurality of gas of dialling and become pearl (41) and keep away from the edge of dwang (2) one side and slow pearl (42), the edge is slowed pearl (42) cover and is established on heat conduction pole (51), adjacent two it becomes between pearl (41), be close to dwang (2) one side dial gas and become between pearl (41) and porous hard coat (21) and the edge is slowed pearl (42) and is moved gas of dialling that is furthest from dwang (2) one side and become equal fixedly connected with many between pearl (41) to stay cord (7) again.

2. A CNC control based air pass type ring mill according to claim 1, characterized in that: the heat conducting rod (51), the heat absorption side rod (52) and the heat collecting ball (53) are all made of hard heat conducting materials.

3. A CNC control based air pass type ring mill according to claim 1, characterized in that: the edge buffering beads (42) and the pull-back ropes (7) are made of elastic materials, and the elasticity of the pull-back ropes (7) is gradually reduced along the direction away from the rotating rod (2).

4. A CNC control based air pass type ring mill according to claim 1, characterized in that: dial gas and become pearl (41) and decide layer (411) and wrap up at the sandwich and decide indent of layer (411) outer end and become layer (412), the sandwich is decided and is enclosed into gas between both ends about layer (411) and indent becomes layer (412) and return the chamber, gas returns fixedly connected with evagination vaulting pole (6) between the upper and lower inner wall in chamber.

5. A CNC control based air-through ring mill as claimed in claim 4, characterized in that: the inner concave variable layer (412) is made of a high-resilience material, the sandwich fixed layer (411) is made of a hard material, and saturated air is filled in the air return cavity.

6. A CNC control based air-through ring mill as claimed in claim 4, characterized in that: the outer convex support rod (6) comprises two outer support resilient bars (61) fixedly connected with the upper inner wall and the lower inner wall of the gas return cavity respectively and a plurality of repulsion columns (62) connected between the two outer support resilient bars (61).

7. A CNC-controlled air-through ring mill according to claim 6, characterized in that: the repulsion column (62) is of a convex strip-shaped structure, and the repulsion column (62) is made of a high-resilience material, preferably a stainless steel material.

8. The CNC control-based gas flow through type ring mill according to claim 7, characterized in that: the outer support resilient strips (61) are made of magnetic materials, and the magnetic poles at the ends, close to each other, of the two outer support resilient strips (61) are the same.