CN103372692A

CN103372692A - Different-diameter guiding combined cutting tap or combined cutting cone

Info

Publication number: CN103372692A
Application number: CN2012101347104A
Authority: CN
Inventors: 李仕清
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-04-20
Filing date: 2012-04-20
Publication date: 2013-10-30

Abstract

The invention discloses a different-diameter guiding combined cutting tap or combined cutting cone which comprises screw blades and a screw shank. The different-diameter guiding combined cutting tap or combined cutting cone is characterized in that an anti-crack slitting table or anti-crack guided cutting table is arranged on the cutting edge surface of each anti-crack screw blade of the tap or cone, the relationship between the height of each anti-crack slitting table or efficient slitting table and the height of an inside adjacent efficient slitting table is defined as the formula that the heights of the anti-crack slitting table or efficient slitting table and the inside adjacent efficient slitting table are calculated by multiplying a feed amount by a product, the cutting feed amount is small while the multiplied product is large when a workpiece is high in hardness or viscosity while a cutter is large, the cutting feed amount is small while the multiplied product is large when the workpiece is high in hardness or viscosity while the cutter is small, the cutting feed amount is large while the multiplied product is small when the workpiece is low in hardness or viscosity while the cutter is large, and the cutting feed amount is large while the multiplied product is small when the workpiece is low in hardness or viscosity while the cutter is small.

Description

Divide footpath guiding combined cutting screw tap or combined cut circular cone

Technical field

The present invention relates to a kind of minute footpath guiding combined cutting screw tap or combined cut circular cone, relate in particular to a kind of minute footpath guiding combined cutting screw tap or combined cut circular cone, the technical program is used for machining to the silk hole processing of workpiece.

Background technology:

At present, the spiral tap that uses in the machining or combined cut circular cone or straight trough screw tap or combined cut circular cone are to be made of silk sword body and silk handle, silk sword body is again by silk sword bar and cutting edge face, the silk sword, chamfering, the formations such as chamfering blades, the silk sword, the cutting edge face of chamfering blades is roughly on a curved surface or same helicoid, the silk end line of each sword bar is roughly on straight line or spiral, distance is too small not to have a guide effect because chamfering place silk pushes up at the bottom of the silk, as a result tapping has become reaming, cause workpiece to scrap, and, because the silk sword face of each group forms by single, silk sword easy fracture then when cutting edge face and silk top angle are too sharp keen occurs when excessive such as angle between cutting edge face and the silk top between a handle and clamping tool that torsion is excessive easily to cause screw tap or combined cut circular cone integral body to break to cause in the workpiece workpiece quality impaired even scrap.

Summary of the invention

The present invention is exactly in view of the above-mentioned problems and proposes, and so that a kind of minute footpath guiding combined cutting screw tap or combined cut circular cone to be provided, this kind screw tap or combined cut circular cone are located easily, and radiating efficiency is high, and wear-resistant, the life-span is long.

In order to achieve the above object, the present invention adopts following technical proposals:

Divide footpath guiding combined cutting screw tap or combined cut circular cone, comprise screw tap silk sword body and handle of a knife, screw tap silk sword body is connected with handle of a knife or forms as one, or circular cone silk sword body and shell, circular cone silk sword body is connected with shell or forms as one, connect on screw tap or the circular cone or one be provided with at least one sword body, or at least one taenidium sword body, or at least one tapering silk sword body, there is a cutting edge face front of each sword body, axial forward end at minute footpath guiding combined cutting screw tap or combined cut circular cone, the face of the cutting edge face rear side chamfering of cutting feed place is rear cutting face, the face of cutting edge face exterior side is the side cutting face, the crossing chamfering silk sword that is formed with in cutting edge face and rear cutting face, or the crossing cutting silk sword that is formed with of cutting edge face and side cutting face, it is characterized in that: in the inboard of the cutting edge face of silk sword body on cutting direction, stepped projection be formed with at least one-level arc convex or oblique projection, at least one-level combined cutting edges face with the inboard, or between arc convex or oblique projection and combined cutting edges face, be formed with the compound decomposition platform that extends to form forward through arc convex or oblique projection, stair-stepping cutting edge face is for efficiently cutting platform, the outermost platform of efficiently cutting is that cracking resistance is cut platform, outermost cutting silk sword or spiral cutting silk sword are cracking resistance silk sword, or inner bulge efficiently cut platform and arc convex or oblique projection, or compound location decomposition platform intersects, the combined cut silk sword that forms is efficient minute cutting blade, arc convex or oblique projection extend to and are formed with the recessed sword of side or skew back sword on cutting edge or the spiral cutting sword, with stair-stepping cutting edge, outermost cutting silk tooth shape becomes cracking resistance silk sword, the contextual definition that cracking resistance is cut platform or efficiently cut platform the height of efficiently cutting platform adjacent with the inboard is, cracking resistance is cut platform or is efficiently cut platform and the height of efficiently cutting platform of adjacent inboard is that the depth of cut multiply by the product number, when the higher and cutter of work piece hardness or viscosity is larger, the cutting depth of cut is less, the product number that the depth of cut is taken advantage of is larger, when the higher and cutter of work piece hardness or viscosity hour, the cutting depth of cut is less, the product number that the depth of cut is taken advantage of is larger, when the lower and cutter of work piece hardness or viscosity is larger, the cutting depth of cut is larger, the product number that the depth of cut is taken advantage of is less, when the lower and cutter of work piece hardness or viscosity hour, the cutting depth of cut is larger, the product number that the depth of cut is taken advantage of is less, or cracking resistance is cut platform or is efficiently cut platform and adjacent cracking resistance is decomposed interstation and is formed with angle more than or equal to 75 °, cracking resistance cut platform or efficiently cut platform and the height of efficiently cutting platform of adjacent inboard for more than or equal to 0.01 millimeter, or less than 4/5ths of the thickness of the bits of discharging after this kind Tool in Cutting, or less than the height of 9 times product number of the cutting amount of feeding, or the cracking resistance width of cutting platform is for more than or equal to 0.3 millimeter, or be less than or equal to 1/3rd of this tool diameter, or at minute cutting edge face of the cutter shaft forward end of footpath guiding combined cutting screw tap or combined cut circular cone with an intersection, silk top, be formed with cutting edge face or cracking resistance and cut chamfering blades face on the platform, the combined cutting edges face that arranges at the chamfering blades face is led for local cracking resistance and is cut platform, cracking resistance is led Qie Tai and is intersected with side cutting face or rear cutting face, and the cutting silk sword of formation or chamfering silk sword are cracking resistance silk sword.

A kind of minute footpath guiding combined cutting screw tap or combined cut circular cone, comprise screw tap silk sword body, or circular cone silk sword body and shell, circular cone silk sword body is connected with shell or forms as one, connect on screw tap or the circular cone or one be provided with a plurality of sword bodies, the front end of the direction of rotation of each sword body has a cutting edge face, it is characterized in that, the concentrically ringed angle of the cutting edge face of each sword body direction of rotation front end and silk top or silk bottom, combined cutting screw tap is, greater than the cutting edge face at the rear portion concentrically ringed angle with place, silk top, or the combined cut circular cone is, less than the cutting edge face at rear portion and the concentrically ringed angle of silk bottom.

Preferably, the concentrically ringed angle at the cutting edge face of each sword bar of described minute footpath guiding combined cutting screw tap or combined cut circular cone and place, silk top is consisting of by silk sword bar two parts one of the silk sword bar at the chamfering place of front portion and back at least.

Preferably, be that silk end diameters by two kinds of different sizes consist of at least at the silk end diameter of the cutting silk sword of described minute footpath guiding combined cutting screw tap or combined cut circular cone.

Preferably, directly the silk end of the cutting silk sword of guiding combined cutting screw tap or combined cut circular cone, be distributed on two different straight lines or helix at the line on the cutting edge face at least at described minute.

A kind of minute footpath guiding combined cutting screw tap or combined cut circular cone, comprise screw tap silk sword body, or circular cone silk sword body and shell, circular cone silk sword body is connected with shell or forms as one, connect on screw tap or the circular cone or one be provided with a plurality of sword bodies, the front end of the direction of rotation of each sword body has a cutting edge face, it is characterized in that, the silk end or the silk top diameter of at least the first cutting silk sword of the front end of the direction of rotation of each sword body are respectively, combined cutting screw tap is the silk end diameter less than the cutting silk sword at rear portion, or the combined cut circular cone is the silk top diameter greater than the cutting silk sword at rear portion, at the bottom of the cutting silk sword silk at the chamfering place of each sword body or silk top and at the bottom of other or silk top, be at least stair-stepping arrangement of one-level, or the arrangement of spiral step shape, and at the bottom of at least the first cutting silk sword silk or silk top, with at the bottom of other or silk withstand on line on the cutting edge face, not on straight line or helix.

A kind of guiding combined cutting screw tap or combined cut circular cone, comprise screw tap silk sword body, or circular cone silk sword body and shell, circular cone silk sword body is connected with shell or forms as one, connect on screw tap or the circular cone or one be provided with a plurality of sword bodies, the front end of the direction of rotation of each sword body has a cutting edge face, it is characterized in that, part or all of the cutting edge face of each sword body is processed into one, form one little sword face, little silk sword face and the cutting edge face at place or the chip removal cell wall that is connected be not on a curved surface or helicoid.

Preferably, silk top to the cutting edge face of silk between the end at described minute footpath guiding combined cutting screw tap or combined cut circular cone is to be made of at least two different cutting edge faces.

Preferably, at the concentrically ringed angle of the cutting edge face at the chamfering place of the cutting silk sword of described minute footpath guiding combined cutting screw tap or combined cut circular cone and homonymy cutting edge face and the concentrically ringed angle greater than the back homonymy.

A kind of minute footpath guiding combined cutting screw tap or combined cut circular cone, comprise screw tap silk sword body, or circular cone silk sword body and shell, circular cone silk sword body is connected with shell or forms as one, connect on screw tap or the circular cone or one be provided with a plurality of sword bodies, the front end of the direction of rotation of each sword body has a cutting edge face, it is characterized in that, the combined cutting screw tap of at least the first cutting silk sword at the chamfering place of each sword body is that silk end diameter is less than the silk end diameter of the cutting silk sword at rear portion, or the combined cut circular cone is that silk top diameter is greater than the silk top diameter of the cutting silk sword at rear portion, at the bottom of the cutting silk sword silk at the chamfering place of each sword body or silk top is at least stair-stepping arrangement of one-level or the arrangement of spiral step shape with at the bottom of other or silk top, and at the bottom of at least the first cutting silk sword silk or silk top with at the bottom of other or silk withstand on line on the cutting edge face not on one straight line or helix, be processed into one with part or all of the cutting edge face of each sword body, form one little sword face, little silk sword face and the cutting edge face at place or the not combination on a curved surface or helicoid of chip removal cell wall that is connected.

A kind of minute footpath guiding combined cutting screw tap or combined cut circular cone, comprise screw tap silk sword body, or circular cone silk sword body and shell, circular cone silk sword body is connected with shell or forms as one, connect on screw tap or the circular cone or one be provided with a plurality of sword bodies, the front end of the direction of rotation of each sword body has a cutting edge face, it is characterized in that, the silk end of at least the first cutting silk sword at the chamfering place of each sword body or the diameter on silk top, be less than or greater than the diameter on the silk end or the silk top of other cutting silk sword, at the bottom of the cutting silk sword silk at the chamfering place of each sword body or silk top is at least stair-stepping arrangement of one-level or the arrangement of spiral step shape with at the bottom of other or silk top, and at the bottom of at least the first cutting silk sword silk or silk top with at the bottom of other or silk withstand on line on the cutting edge face not on one straight line or helix, with the concentrically ringed angle combined cutting screw tap at the cutting edge face at each sword body chamfering place and silk top or place, silk top be greater than, or the combined cut circular cone is less than the combination with the concentrically ringed angle of silk top or silk bottom of, the cutting edge face at rear portion.

A kind of minute footpath guiding combined cutting screw tap or combined cut circular cone, comprise screw tap silk sword body, or circular cone silk sword body and shell, circular cone silk sword body is connected with shell or forms as one, connect on screw tap or the circular cone or one be provided with a plurality of sword bodies, the front end of the direction of rotation of each sword body has a cutting edge face, it is characterized in that, part or all of the cutting edge face of each sword body is processed into one, form one little sword face, the cutting edge face at little silk sword face and place or the chip removal cell wall that is connected be not on a curved surface or helicoid, with the cutting edge face at each sword body chamfering place and the concentrically ringed angle of silk top or silk bottom, combined cutting screw tap is greater than the cutting edge face at rear portion and the concentrically ringed angle of silk bottom, or the combined cut circular cone is the combination less than cutting edge face with the concentrically ringed angle at place, silk top at rear portion.

A kind of minute footpath guiding combined cutting screw tap or combined cut circular cone, comprise screw tap silk sword body, or circular cone silk sword body and shell, circular cone silk sword body is connected with shell or forms as one, connect on screw tap or the circular cone or one be provided with a plurality of sword bodies, the front end of the direction of rotation of each sword body has a cutting edge face, it is characterized in that; 1, the silk end of at least the first of the chamfering place of each sword body the cutting silk sword or silk top diameter, be less than or greater than the silk end or the silk top diameter of other cutting silk swords, at the bottom of the cutting silk sword silk at the chamfering place of each sword body or silk top, be at least stair-stepping arrangement of one-level with at the bottom of other or silk top, or the arrangement of spiral step shape, and at the bottom of at least the first cutting silk sword silk or silk top with at the bottom of other or silk withstand on line on the cutting edge face not on straight line or helix; 2, part or all of the cutting edge face of each sword body is processed into one, forms one little sword face, and the cutting edge face at little silk sword face and place or the chip removal cell wall that is connected be not on a curved surface or helicoid; 3, the cutting edge face at each sword body chamfering place with the concentrically ringed angle combined cutting screw tap of silk top or silk bottom is, greater than or the combined cut circular cone be less than, the cutting edge face at the rear portion concentrically ringed angle with silk top or a bottom; More than the various combinations of three kinds of different technical schemes.

A kind of minute footpath guiding combined cutting screw tap or combined cut circular cone, comprise screw tap silk sword body, or circular cone silk sword body and shell, circular cone silk sword body is connected with shell or forms as one, connect on screw tap or the circular cone or one be provided with a plurality of sword bodies, the front end of the direction of rotation of each sword body has a cutting edge face, it is characterized in that, the part of the cutting edge face of each sword body is processed into one, form one little sword face, the cutting edge face at little silk sword face and place or the chip removal hole wall that is connected be not on a curved surface, the concentrically ringed angle of the cutting edge face at chamfering place and silk top or the silk end or silk bottom, combined cutting screw tap be greater than, or the combined cut circular cone is less than, the cutting edge face at the rear portion concentrically ringed angle with silk top or silk bottom; There is one the outer end at the chamfering place of cutting silk sword on the cutting direction of each sword body, or compound setting, and slightly larger in diameter is at the bottom of silk or the positioning table of silk top diameter, or locating ring, or positioning round table.

A kind of minute footpath guiding combined cutting screw tap or combined cut circular cone, the silk sword body that comprises combined cutting screw tap or combined cut circular cone is a kind of in the following type: tapering silk sword body screw tap or circular cone, raw silk rings sword body screw tap or circular cone, taenidium sword body screw tap or circular cone, or cast screw tap or circular cone, or other polyhedron shape screw tap or circular cones.

Preferably, chamfering place at the cutting silk sword of described minute footpath guiding combined cutting screw tap or combined cut circular cone, at least diameter is less than or greater than diameter at the bottom of other cutting silk sword silks at the bottom of the first lap silk of cutting silk sword, be at least stair-stepping arrangement of one-level or the arrangement of spiral step shape with at the bottom of other at the bottom of the cutting silk sword silk at chamfering place, or part or all of the cutting edge face of each sword bar is processed into one, form one little sword face, the cutting edge face at little silk sword face and place or the chip removal cell wall that is connected be not on a curved surface or helicoid.

Preferably, at described minute footpath guiding combined cutting screw tap or combined cut circular cone, it is characterized in that, the silk sword body of screw tap or combined cut circular cone is a kind of in the following type: tapering silk sword body screw tap or combined cut circular cone, raw silk rings sword body screw tap or circular cone, taenidium sword body screw tap or circular cone, or cast screw tap or circular cone, or other polyhedron shape screw tap or circular cones.

Preferably, at least cut at the chamfering place of the cutting silk sword of described minute footpath guiding combined cutting screw tap or combined cut circular cone at the bottom of the first lap silk of a sword diameter less than other cutting silk sword silks at the bottom of diameter, be at least stair-stepping arrangement of one-level or the arrangement of spiral step shape at the bottom of the cutting silk sword silk at chamfering place and at the bottom of other, and the cutting edge face at each sword bar chamfering place and the cutting edge face and thread concentrically ringed angle at top place of a concentrically ringed angle at place, top greater than the rear portion.

Preferably, at described minute footpath guiding combined cutting screw tap or combined cut circular cone, comprise screw tap silk sword body, or circular cone silk sword body and shell, circular cone silk sword body is connected with shell or forms as one, connect on screw tap or the circular cone or one be provided with a plurality of sword bodies, there is a cutting edge face front of each sword body, it is characterized in that, the part of the cutting edge face of each sword body is processed into one, form one little sword face, the cutting edge face at little silk sword face and place or the chip removal hole wall that is connected not on a curved surface, the concentrically ringed angle that the concentrically ringed angle at the cutting edge face at chamfering place and place, silk top is located greater than the cutting edge face at rear portion and silk top; There is positioning table or locating ring or the positioning round table of slightly larger in diameter diameter at the bottom of silk of one or compound setting the outer end at the chamfering place of cutting silk sword on the cutting direction of each sword body.

Preferably, be processed into one in part or all of the cutting edge face of each sword bar of described minute footpath guiding combined cutting screw tap or combined cut circular cone, form one little sword face, the cutting edge face at little silk sword face and place or the chip removal cell wall that is connected be not on a curved surface or helicoid; And the cutting edge face at each sword bar chamfering place is greater than or less than the cutting edge face at rear portion and the concentrically ringed angle at place, silk top with the concentrically ringed angle at place, silk top.

Beneficial effect

Because the present invention has adopted the inboard at the cutting edge face of silk sword body, projection arc convex or oblique projection be set, or extend the front portion of arc convex or oblique projection, be formed with parallel with the cutting edge face or the combined cutting edges face of angle is arranged, outermost combined cutting edges face is that efficient cracking resistance is cut face, inboard combined cutting edges face, for efficiently cutting platform, cutting silk tooth shape becomes efficient cracking resistance silk sword, greatly strengthened the breaking resistance of cutting edge face, prolonged the service life of screw tap or circular cone, extend with front cutting edge face crossing along arc convex or oblique projection, be formed with and efficiently cut and the recessed sword of sword side or skew back sword, with stair-stepping cutting edge, improved the stock-removing efficiency of screw tap or circular cone, by having strengthened the intensity of silk sword body at one little sword face of the cutting edge face of each sword body processing owing to adopted at the bottom of the first of chamfering place on the cutting direction of each sword body diameter to be less than or greater than diameter at the bottom of other cutting silk sword silks at least, and be at least stair-stepping arrangement of one-level or the arrangement of spiral step shape with at the bottom of other at the bottom of the cutting silk sword silk at chamfering place, be equivalent to prolong chamfering, reduced cutting output, screw tap or combined cut circular cone can be located on workpiece smoothly, prevent the generation of sleave, improved stock-removing efficiency; Because the cutting edge face that has adopted chamfering place on the cutting direction of silk sword body is greater than or less than the cutting edge face at rear portion and the concentrically ringed angle at place, silk top with the concentrically ringed angle at place, silk top, improves heat sinking function and strengthen the effect of intensity.

Description of drawings:

Technical scheme of the present invention and advantage will be described in detail in this accompanying drawing in conjunction with the drawings.

Fig. 1 is the schematic diagram of the first embodiment of the present invention, and Fig. 2 is that the A-A of Fig. 1 of the present invention is to view.

Fig. 3 is the schematic diagram of the second embodiment of the present invention, and Fig. 4 is that the A-A of Fig. 3 of the present invention is to view.

Fig. 5 is the schematic diagram of the 3rd embodiment of the present invention, and Fig. 6 is that the A-A of Fig. 5 of the present invention is to view.

Fig. 7 is the schematic diagram of the 4th embodiment of the present invention, and Fig. 8 is that the A-A of Fig. 7 of the present invention is to view.

Fig. 9 is the schematic diagram of the 5th embodiment of the present invention, and Figure 10 is that the A-A of Fig. 7 of the present invention is to view.

Figure 11 is the schematic diagram of the 6th embodiment of the present invention, and Figure 12 is that the A-A of Fig. 7 of the present invention is to view.

Figure 13 is the schematic diagram of the 7th embodiment of the present invention, and Figure 14 is that the A-A of Fig. 5 of the present invention is to view.

Figure 15 is the schematic diagram of the 8th embodiment of the present invention, and Figure 16 is that the A-A of Fig. 7 of the present invention is to view.

Figure 17 is the schematic diagram of the 9th embodiment of the present invention, and Figure 18 is that the A-A of Fig. 7 of the present invention is to view.

Figure 19 is the schematic diagram of the tenth embodiment of the present invention, and Figure 20 is that the A-A of Fig. 7 of the present invention is to view.

Figure 21 is the schematic diagram of the 11 embodiment of the present invention, and Figure 22 is that the A-A of Fig. 7 of the present invention is to view.

Figure 23 is the schematic diagram of the 12 embodiment of the present invention, and Figure 24 is that the A-A of Fig. 7 of the present invention is to view.

The specific embodiment:

Describe the preferred embodiment of the technology of of the present invention minute footpath guiding combined cutting screw tap or combined cut circular cone in detail below in conjunction with accompanying drawing, in embodiment 1-ten mainly to have arc convex or oblique projection, the recessed sword of side or skew back sword, with stair-stepping cutting edge, or efficient cracking resistance silk sword, combined cutting edges, or composite screw cutting edge, or recess sword, compound recess sword, or ladder sword, or minute cutting blade etc. describes for example, in the following description, identical parts use identical symbol and omit its specific description.

Embodiment 1

Such as Fig. 1, shown in Figure 2, minute footpath guiding combined cutting screw tap or the combined cut circular cone of the first embodiment, comprising that circular cone silk sword body 1 is connected with shell connects or forms as one, connect on the circular cone or one be provided with at least one sword body 1, or at least one taenidium sword body 1, or at least one tapering silk sword body 1, there is a cutting edge face 6 front of each sword body, axial forward end at minute footpath guiding combined cutting screw tap or combined cut circular cone, the face of the cutting edge face 6 rear side chamferings 8 of cutting feed place is rear cutting face 7, the face of cutting edge face 6 exterior sides is side cutting face 8, cutting edge face 6 intersects with rear cutting face 7 and is formed with chamfering silk sword 9, or cutting edge face 6 intersects with side cutting face 8 and are formed with cutting silk swords 11, and the diameter at the silk end 3 is

The diameter on silk top 4 is It is characterized in that: in the inboard of the cutting edge face 6 of silk sword body 1 on cutting direction, stepped projection be formed with at least one-level arc convex or oblique protruding 12, at least one-level combined cutting edges face 13 with the inboard, or arc convex or oblique protruding 12 and 13 in combined cutting edges face, be formed with the compound decomposition platform 10 that extends to form forward through arc convex or oblique projection, stair-stepping cutting edge face 6 is for efficiently cutting platform, the outermost platform of efficiently cutting is that cracking resistance is cut platform 18, outermost cutting silk sword or spiral cutting silk sword are cracking resistance silk sword 17, inner bulge efficiently cut platform 15 and arc convex or oblique protruding 12, or compound location decomposition platform 10 intersects, the combined cut silk sword 19 that forms is efficient minute cutting blade 19, arc convex or oblique protruding 12 extends on cutting silk sword or the spiral cutting silk sword, be formed with the recessed sword of side or skew back sword 16, with stair-stepping cutting silk sword, outermost cutting silk tooth shape becomes cracking resistance silk sword 17, cracking resistance is cut platform 18, or cracking resistance is led and is cut platform, or efficiently cut platform 15, the contextual definition of the height of efficiently cutting platform adjacent with the inboard is respectively, cracking resistance is cut platform or is efficiently cut platform and the height h that efficiently cuts platform of adjacent inboard is that the depth of cut multiply by the product number, when the higher and cutter of work piece hardness or viscosity is larger, the cutting depth of cut is less, the product number that the depth of cut is taken advantage of is larger, when the higher and cutter of work piece hardness or viscosity hour, the cutting depth of cut is less, the product number that the depth of cut is taken advantage of is larger, when the lower and cutter of work piece hardness or viscosity is larger, the cutting depth of cut is larger, the product number that the depth of cut is taken advantage of is less, when the lower and cutter of work piece hardness or viscosity hour, the cutting depth of cut is larger, the product number that the depth of cut is taken advantage of is less, or cracking resistance is cut platform 18 or is efficiently cut platform 15 and adjacent cracking resistance is decomposed 10 angles that are formed with more than or equal to 75 ° of platform, or the cracking resistance height of efficiently cutting platform 13 of cutting platform 18 or efficiently cutting platform 15 and adjacent inboard is for more than or equal to 0.01 millimeter, or less than 4/5ths of the thickness of the bits of discharging after this kind Tool in Cutting, or less than the height of 9 times product number of the cutting amount of feeding, or the cracking resistance width a that cuts platform is for more than or equal to 0.3 millimeter, or be less than or equal to 1/3rd of this tool diameter, or at minute cutting edge face of the cutter shaft forward end of footpath guiding combined cutting screw tap or combined cut circular cone with an intersection, silk top, be formed with the chamfering blades face on the cutting edge face, this chamfering blades face is led for local cracking resistance and is cut platform 20, cracking resistance is led and is cut platform 20 and intersect with side cutting face or rear cutting face, the cutting silk sword 21 or the chamfering silk sword 22 that form are cracking resistance silk sword, the concentrically ringed angle d at the cutting edge face of each sword body 1 direction of rotation front end and silk top 4 or silk place, the ends 3, the combined cut circular cone is, greater than the cutting edge face at rear portion and the concentrically ringed angle e at silk place, the ends 3, the silk top diameter of at least the first cutting silk sword of the front end of the direction of rotation of each sword body is

The combined cut circular cone is the silk top diameter greater than the cutting silk sword at rear portion

At least the first cutting silk sword silk top 26 and other silk tops 4 at the chamfering place of each sword body, be at least stair-stepping arrangement of one-level, or the arrangement of spiral step shape, and at least the first cutting silk sword silk top 26, with other line of top 4 on the cutting edge face, not on straight line or helix, part or all of the cutting edge face of each sword body is processed into one, forming one little sword face and be cracking resistance leads and cuts platform 20, cracking resistance is led and is cut platform 20 and namely efficiently cut the chip removal cell wall that platform 15 or cracking resistance are cut platform 18 and be connected with the cutting edge face at place, not on a curved surface or helicoid.

Embodiment 2

Such as Fig. 3, shown in Figure 4, minute footpath guiding combined cutting screw tap or the combined cut circular cone of the second embodiment, on the basis of the technique effect of the first embodiment, the present invention includes screw tap silk sword body 1 and shell 2, screw tap silk sword body 1 is connected with shell and is connected or form as one, or circular cone silk sword body 1 and shell 2, circular cone silk sword body 1 is connected with shell and is connected or form as one, connect on screw tap or the circular cone or one be provided with at least one sword body 1, or at least one taenidium sword body 1, or at least one tapering silk sword body 1, there is a cutting edge face 6 front of each sword body, and in the axial forward end of minute footpath guiding combined cutting screw tap or combined cut circular cone, the face of the cutting edge face 6 rear side chamferings 8 of cutting feed place is rear cutting face 7, the face of cutting edge face 6 exterior sides is side cutting face 8, cutting edge face 6 intersects with rear cutting face 7 and is formed with chamfering silk sword 9, or cutting edge face 6 intersects with side cutting face 8 and are formed with cutting silk swords 11, and the diameter at the silk end 3 is

The diameter on silk top 4 is

5, at least the first of the chamfering place of each sword body the cutting silk sword or the combined cut circular cone be that silk pushes up 26 diameters

Silk top 4 diameters greater than the cutting silk sword at rear portion

The cutting silk sword silk top 4 at the chamfering place of each sword body is at least stair-stepping arrangement of one-level or the arrangement of spiral step shape with other tops 26, and at least the first cutting silk sword silk top 26 and other tops 4 at the line on the cutting edge face not on one straight line or helix, be processed into one with part or all of the cutting edge face of each sword body, form one little sword face and be cracking resistance and lead and cut platform 20, cracking resistance is led and is cut platform 20 and the cutting edge face at place or the not combination on a curved surface or helicoid of chip removal cell wall that is connected.

Embodiment 3

Such as Fig. 5, shown in Figure 6, minute footpath guiding combined cutting screw tap or the combined cut circular cone of the 3rd embodiment, first---on the basis of the technique effect of two embodiments, the present invention includes screw tap silk sword body 1 and shell 2, screw tap silk sword body 1 is connected with shell and is connected or form as one, or circular cone silk sword body 1 and shell 2, circular cone silk sword body 1 is connected with shell and is connected or form as one, connect on screw tap or the circular cone or one be provided with at least one sword body 1, or at least one taenidium sword body 1, or at least one tapering silk sword body 1, there is a cutting edge face 6 front of each sword body, and in the axial forward end of minute footpath guiding combined cutting screw tap or combined cut circular cone, the face of the cutting edge face 6 rear side chamferings 8 of cutting feed place is rear cutting face 7, the face of cutting edge face 6 exterior sides is side cutting face 8, cutting edge face 6 intersects with rear cutting face 7 and is formed with chamfering silk sword 9, or cutting edge face 6 intersects with side cutting face 8 and are formed with cutting silk swords 11, and the diameter at the silk end 3 is

The diameter on silk top 4 is

It is characterized in that: 6, the diameter on the silk top of at least the first cutting silk sword at the chamfering place of each sword body, diameter greater than other cutting silk sword silk top, the cutting silk sword silk top 26 at the chamfering place of each sword body is at least stair-stepping arrangement of one-level or the arrangement of spiral step shape with other tops 4, and at least the first cutting silk sword silk top 26 and other tops 4 at the line on the cutting edge face not on one straight line or helix, with the cutting edge face at each sword body chamfering place and the concentrically ringed angle d at 26 places, silk top, greater than cutting edge face and the combination of the concentrically ringed angle e at place, top at rear portion.

Embodiment 4

Such as Fig. 7, shown in Figure 8, minute footpath guiding combined cutting screw tap or the combined cut circular cone of the 4th embodiment, first---on the basis of the technique effect of three embodiments, the present invention has increased guide ring 25 or guide positioning plate 26, part or all of the cutting edge face of each sword body is processed into one, forming one little sword face and be cracking resistance cuts platform 18 or cracking resistance and leads and cut platform 20, cracking resistance is cut platform 18 or cracking resistance and is led the cutting edge face of cutting platform 20 and place or the chip removal cell wall that is connected not on a curved surface or helicoid, with the cutting edge face at each sword body chamfering place and the concentrically ringed angle d at 26 places, silk top, or the combined cut circular cone is the combination greater than cutting edge face with the concentrically ringed angle e at 4 places, silk top at rear portion.Increase substantially the cutting stability of circular cone, and prolonged the service life of circular cone.

Embodiment 5

Such as Fig. 9, shown in Figure 10, minute footpath guiding combined cutting screw tap or the combined cut circular cone of the 5th embodiment, first---on the basis of the technique effect of four embodiments, the present invention has increased the guide ring 25 of depression, silk top 26 diameters of at least the first cutting silk sword at the chamfering place of each sword body

Silk top 4 diameters greater than other cutting silk swords

The cutting silk sword silk top 26 at the chamfering place of each sword body, be at least stair-stepping arrangement of one-level with other tops, or the arrangement of spiral step shape, and at least the first cutting silk sword silk top 26 and other tops 4 at the line on the cutting edge face not on straight line or helix; Part or all of the cutting edge face of each sword body is processed into one, form one little sword face and be cracking resistance and cut platform 18 or cracking resistance and lead and cut platform 20, cracking resistance is cut platform 18 or cracking resistance and is led the cutting edge face of cutting platform 20 and place or the chip removal cell wall that is connected not on a curved surface or helicoid; The cutting edge face at each sword body chamfering place with the concentrically ringed angle of silk bottom is, greater than the cutting edge face at rear portion and the concentrically ringed angle of silk top or silk bottom; More than the various combinations of three kinds of different technical schemes, increased substantially the cutting stability of circular cone, and prolonged the service life of circular cone.

Embodiment 6

Such as Figure 11, shown in Figure 12, minute footpath guiding combined cutting screw tap or the combined cut circular cone of the 6th embodiment, first---on the basis of five embodiments, the present invention has increased shell type guide positioning plate 26, the silk sword body of screw tap or combined cut circular cone is at least a kind of in the following type: tapering silk sword body screw tap or circular cone, raw silk rings sword body screw tap or circular cone, taenidium sword body screw tap or circular cone, or cast silk sword body screw tap or circular cone, or other polyhedron shape screw tap or circular cones, the part of the cutting edge face of each sword body is processed into one, forming one little sword face and be cracking resistance cuts platform 18 or cracking resistance and leads and cut platform 20, the cutting edge face at little silk sword face and place or the chip removal hole wall that is connected be not on a curved surface, the concentrically ringed angle d of the cutting edge face at chamfering place and silk top or silk bottom, combined cut circular cone be greater than, the cutting edge face at the rear portion concentrically ringed angle e with silk top or a bottom; There is one the outer end at the chamfering place of cutting silk sword on the cutting direction of each sword body, or compound setting, and slightly larger in diameter is at the bottom of silk or the positioning table of silk top diameter, or locating ring, or positioning round table, increase substantially the cutting stability of circular cone, and prolonged the service life of circular cone.

Embodiment 7

Such as Figure 13, shown in Figure 14, minute footpath guiding combined cutting screw tap or the combined cut circular cone of the 7th embodiment, first---on the basis of the technique effect of six embodiments, the present invention includes screw tap silk sword body 1 is connected with tap holder and connects or form as one, connect on the screw tap or one be provided with at least one sword body 1, or at least one taenidium sword body 1, or at least one tapering silk sword body 1, there is a cutting edge face 6 front of each sword body, in minute axial forward end of footpath guiding combined cutting screw tap, the face of cutting edge face 6 rear side of cutting feed place is rear cutting face 7, and the face of cutting edge face 6 exterior sides is side cutting face 8, cutting edge face 6 and the rear cutting face 7 crossing chamfering silk swords 9 that are formed with, or cutting edge face 6 and the side cutting face 8 crossing cutting silk swords 11 that are formed with, the diameter at the silk end 3 is

The diameter on silk top 4 is

It is characterized in that: in the inboard of the cutting edge face 6 of silk sword body 1 on cutting direction, stepped projection be formed with at least one-level arc convex or oblique protruding 12, at least one-level combined cutting edges face 13 with the inboard, or arc convex or oblique protruding 12 and 13 in combined cutting edges face, be formed with the compound decomposition platform 10 that extends to form forward through arc convex or oblique projection, stair-stepping cutting edge face 6 is for efficiently cutting platform, the outermost platform of efficiently cutting is that cracking resistance is cut platform 18, outermost cutting silk sword or spiral cutting silk sword are cracking resistance silk sword 17, inner bulge efficiently cut platform 15 and arc convex or oblique protruding 12, or compound location decomposition platform 10 intersects, the combined cut silk sword 19 that forms is efficient minute cutting blade 19, arc convex or oblique protruding 12 extends on cutting silk sword or the spiral cutting silk sword, be formed with the recessed sword of side or skew back sword 16, with stair-stepping cutting silk sword, outermost cutting silk tooth shape becomes cracking resistance silk sword 17, cracking resistance is cut platform 18, or cracking resistance is led and is cut platform, or efficiently cut platform 15, the contextual definition of the height of efficiently cutting platform adjacent with the inboard is respectively, cracking resistance is cut platform or is efficiently cut platform and the height h that efficiently cuts platform of adjacent inboard is that the depth of cut multiply by the product number, when the higher and cutter of work piece hardness or viscosity is larger, the cutting depth of cut is less, the product number that the depth of cut is taken advantage of is larger, when the higher and cutter of work piece hardness or viscosity hour, the cutting depth of cut is less, the product number that the depth of cut is taken advantage of is larger, when the lower and cutter of work piece hardness or viscosity is larger, the cutting depth of cut is larger, the product number that the depth of cut is taken advantage of is less, when the lower and cutter of work piece hardness or viscosity hour, the cutting depth of cut is larger, the product number that the depth of cut is taken advantage of is less, or cracking resistance is cut platform 18 or is efficiently cut platform 15 and adjacent cracking resistance is decomposed 10 angles that are formed with more than or equal to 75 ° of platform, or the cracking resistance height of efficiently cutting platform 13 of cutting platform 18 or efficiently cutting platform 15 and adjacent inboard is for more than or equal to 0.01 millimeter, or less than 4/5ths of the thickness of the bits of discharging after this kind Tool in Cutting, or less than the height of 9 times product number of the cutting amount of feeding, or the cracking resistance width a that cuts platform is for more than or equal to 0.3 millimeter, or be less than or equal to 1/3rd of this tool diameter, or at minute cutting edge face of the cutter shaft forward end of footpath guiding combined cutting screw tap or combined cut circular cone with an intersection, silk top, be formed with cutting edge face or cracking resistance and cut chamfering blades face on the platform, this chamfering blades face is led for local cracking resistance and is cut platform 20, cracking resistance is led and is cut platform 20 and intersect with side cutting face or rear cutting face, the cutting silk sword 21 or the chamfering silk sword 22 that form are cracking resistance silk sword, the cutting edge face of each sword body 1 direction of rotation front end pushes up the concentrically ringed angle d at 4 places with silk 3 or silk, the combined cut circular cone is, greater than the cutting edge face at rear portion and the concentrically ringed angle e at silk place, the ends 3, the silk end diameter of at least the first cutting silk sword of the front end of the direction of rotation of each sword body is

The combined cut circular cone is the silk ends 3 diameter greater than the cutting silk sword at rear portion

28 with at the bottom of other 3 at the bottom of at least the first cutting silk sword silk at the chamfering place of each sword body, be at least stair-stepping arrangement of one-level, or the arrangement of spiral step shape, and at the bottom of at least the first cutting silk sword silk 28, with 3 lines on the cutting edge face at the bottom of other, not on straight line or helix, part or all of the cutting edge face of each sword body is processed into one, forming one little sword face and be cracking resistance cuts platform 18 or cracking resistance and leads and cut platform 20, cracking resistance is led and is cut platform 20 and namely efficiently cut the chip removal cell wall that platform 15 or cracking resistance are cut platform 18 and be connected with the cutting edge face at place, not on a curved surface or helicoid, the combined cutting screw tap of at least the first cutting silk sword at the chamfering place of each sword body 1 is the silk ends 28 diameter

The silk ends 3 diameter less than the cutting silk sword at rear portion

28 3 are at least stair-stepping arrangement of one-level with at the bottom of other at the bottom of the cutting silk sword silk at the chamfering place of each sword body, or the arrangement of spiral step shape, and at the bottom of at least the first cutting silk sword silk 28 with at the bottom of other 3 at the line on the cutting edge face not on one straight line or helix, be processed into one with part or all of the cutting edge face of each sword body, forming one little sword face and be cracking resistance cuts platform 18 or cracking resistance and leads and cut platform 20, little silk sword face and the cutting edge face at place or the not combination on a curved surface or helicoid of chip removal cell wall that is connected.6, the diameter at the silk end 28 of at least the first cutting silk sword at the chamfering place of each sword body, cut the diameter at the silk end 3 of silk sword less than other, 28 3 are at least stair-stepping arrangement of one-level with at the bottom of other at the bottom of the cutting silk sword silk at the chamfering place of each sword body, or the arrangement of spiral step shape, and at the bottom of at least the first cutting silk sword silk 28 with at the bottom of other 3 at the line on the cutting edge face not on one straight line or helix, with the cutting edge face at each sword body chamfering place and the concentrically ringed angle c at place, silk top, less than the combination with the concentrically ringed angle b of silk top or silk bottom of the cutting edge face at rear portion, part or all of the cutting edge face of each sword body is processed into one, forming one little sword face and be cracking resistance cuts platform 18 or cracking resistance and leads and cut platform 20, the cutting edge face at little silk sword face and place or the chip removal cell wall that is connected be not on a curved surface or helicoid, with the cutting edge face at each sword body chamfering place and the concentrically ringed angle c at place, silk top, greater than the cutting edge face and the combination of the concentrically ringed angle b at place, top at rear portion, the diameter at the silk end 28 of at least the first cutting silk sword at the chamfering place of each sword body

Cut the diameter at the silk end 3 of silk swords less than other

At the bottom of the cutting silk sword silk at the chamfering place of each sword body 28, and 3 be at least stair-stepping arrangement of one-level at the bottom of other, or the arrangement of spiral step shape, and at the bottom of at least the first cutting silk sword silk 28 with 3 diameter at the bottom of other At the line on the cutting edge face not on straight line or helix; Part or all of the cutting edge face of each sword body is processed into one, forms one little sword face and is cracking resistance and cut platform 18 or cracking resistance and lead and cut platform 20, and the cutting edge face at little silk sword face and place or the chip removal cell wall that is connected be not on a curved surface or helicoid; The cutting edge face at each sword body chamfering place and a concentrically ringed angle c at place, top are greater than the cutting edge face at rear portion and the concentrically ringed angle b at place, silk top; More than the various combinations of three kinds of different technical schemes.

Embodiment 8

Such as Figure 15, Figure 16 is described, minute footpath guiding combined cutting screw tap or the combined cut circular cone of the 8th embodiment, first---on the basis of the technique effect of seven embodiments, the present invention includes screw tap silk sword body 1 is connected with tap holder and connects or form as one, connect on the screw tap or one be provided with at least one sword body 1, or at least one taenidium sword body 1, or at least one tapering silk sword body 1, there is a cutting edge face 6 front of each sword body, in minute axial forward end of footpath guiding combined cutting screw tap, the face of the cutting edge face 6 rear side chamferings 8 of cutting feed place is rear cutting face 7, and the face of cutting edge face 6 exterior sides is side cutting face 8, cutting edge face 6 and the rear cutting face 7 crossing chamfering silk swords 9 that are formed with, or cutting edge face 6 and the side cutting face 8 crossing cutting silk swords 11 that are formed with, the diameter at the silk end 3 is The diameter on silk top 4 is The silk ends 28 diameter at least the first cutting silk sword at the chamfering place of each sword body

The silk ends 3 diameter less than other cutting silk swords, at the bottom of the cutting silk sword silk at the chamfering place of each sword body 28, with 3 be at least stair-stepping arrangement of one-level at the bottom of other, or the arrangement of spiral step shape, and at the bottom of at least the first cutting silk sword silk 28 with at the bottom of other 3 at the line on the cutting edge face not on straight line or helix; Part or all of the cutting edge face of each sword body is processed into one, and to form one little sword face be that cracking resistance is cut platform 18 or cracking resistance and led and cut platform 20, and the cutting edge face at little silk sword face and place or the chip removal cell wall that is connected be not on a curved surface or helicoid; The cutting edge face at each sword body chamfering place and a concentrically ringed angle c at place, top are greater than the cutting edge face at rear portion and the concentrically ringed angle b at place, silk top; More than the various combinations of three kinds of different technical schemes.

Embodiment 9

Such as Figure 17, Figure 18 is described, minute footpath guiding combined cutting screw tap or the combined cut circular cone of the 9th embodiment, first---on the basis of eight embodiments, the spiral tap of combined cut of the present invention comprises that screw tap silk sword body 1 is connected with tap holder and connects or form as one, connect on the screw tap or one be provided with at least one sword body 1, or at least one taenidium sword body 1, or at least one tapering silk sword body 1, there is a cutting edge face 6 front of each sword body, in minute axial forward end of footpath guiding combined cutting screw tap, the face of the cutting edge face 6 rear side chamferings 8 of cutting feed place is rear cutting face 7, and the face of cutting edge face 6 exterior sides is side cutting face 8, cutting edge face 6 and the rear cutting face 7 crossing chamfering silk swords 9 that are formed with, or cutting edge face 6 and the side cutting face 8 crossing cutting silk swords 11 that are formed with, the diameter at the silk end 3 is

The diameter on silk top 4 is

9, the silk sword body of screw tap or combined cut circular cone is a kind of in the following type: tapering silk sword body screw tap or circular cone, raw silk rings sword body screw tap or circular cone, taenidium sword body screw tap or circular cone, or cast screw tap or circular cone, or other polyhedron shape screw tap or circular cones, part at the cutting edge face of each sword body is processed into one, forming one little sword face and be cracking resistance cuts platform 18 or cracking resistance and leads and cut platform 20, the cutting edge face at little silk sword face and place or the chip removal hole wall that is connected be not on a curved surface, the cutting edge face at chamfering place and a concentrically ringed angle c at place, top are greater than the cutting edge face at rear portion and the concentrically ringed angle b at silk top or a place, top; On the cutting direction of each sword body there is one the outer end at the chamfering place of cutting silk sword, or compound setting, a tap holder 29 of diameter at the bottom of diameter is slightly less than thread.

Embodiment 10

Such as Figure 19, Figure 20 is described, minute footpath guiding combined cutting screw tap or the combined cut circular cone of the tenth embodiment, first---on the basis of the technique effect of nine embodiments, the present invention includes screw tap silk sword body 1 is connected with tap holder and connects or form as one, connect on the screw tap or one be provided with at least one sword body 1, or at least one taenidium sword body 1, or at least one tapering silk sword body 1, there is a cutting edge face 6 front of each sword body, in minute axial forward end of footpath guiding combined cutting screw tap, the face of the cutting edge face 6 rear side chamferings 8 of cutting feed place is rear cutting face 7, and the face of cutting edge face 6 exterior sides is side cutting face 8, cutting edge face 6 and the rear cutting face 7 crossing chamfering silk swords 9 that are formed with, or cutting edge face 6 and the side cutting face 8 crossing cutting silk swords 11 that are formed with, the diameter at the silk end 3 is The diameter on silk top 4 is

It is characterized in that: in the inboard of the cutting edge face 6 of silk sword body 1 on cutting direction, stepped projection be formed with at least one-level arc convex or oblique protruding 12, at least one-level combined cutting edges face 13 with the inboard, or arc convex or oblique protruding 12 and 13 in combined cutting edges face, be formed with the compound decomposition platform 10 that extends to form forward through arc convex or oblique projection, stair-stepping cutting edge face 6 is for efficiently cutting platform, the outermost platform of efficiently cutting is that cracking resistance is cut platform 18, outermost cutting silk sword or spiral cutting silk sword are cracking resistance silk sword 17, inner bulge efficiently cut platform 15 and arc convex or oblique protruding 12, or compound location decomposition platform 10 intersects, the combined cut silk sword 19 that forms is efficient minute cutting blade 19, arc convex or oblique protruding 12 extends on cutting silk sword or the spiral cutting silk sword, be formed with the recessed sword of side or skew back sword 16, with stair-stepping cutting silk sword, outermost cutting silk tooth shape becomes cracking resistance silk sword 17, cracking resistance is cut platform 18, or cracking resistance is led and is cut platform, or efficiently cut platform 15, the contextual definition of the height of efficiently cutting platform adjacent with the inboard is respectively, cracking resistance is cut platform or is efficiently cut platform and the height h that efficiently cuts platform or the h ' of adjacent inboard multiply by the product number for the depth of cut, when the higher and cutter of work piece hardness or viscosity is larger, the cutting depth of cut is less, the product number that the depth of cut is taken advantage of is larger, when the higher and cutter of work piece hardness or viscosity hour, the cutting depth of cut is less, the product number that the depth of cut is taken advantage of is larger, when the lower and cutter of work piece hardness or viscosity is larger, the cutting depth of cut is larger, the product number that the depth of cut is taken advantage of is less, when the lower and cutter of work piece hardness or viscosity hour, the cutting depth of cut is larger, the product number that the depth of cut is taken advantage of is less, or cracking resistance is cut platform 18 or is efficiently cut platform 15 and adjacent cracking resistance is decomposed 10 angles that are formed with more than or equal to 75 ° of platform, or the cracking resistance height of efficiently cutting platform 13 of cutting platform 18 or efficiently cutting platform 15 and adjacent inboard is for more than or equal to 0.01 millimeter, or less than 4/5ths of the thickness of the bits of discharging after this kind Tool in Cutting, or less than the height of 9 times product number of the cutting amount of feeding, or cracking resistance is cut the width a of platform or a ' for more than or equal to 0.3 millimeter, or be less than or equal to 1/3rd of this tool diameter, or at minute cutting edge face of the cutter shaft forward end of footpath guiding combined cutting screw tap or combined cut circular cone with an intersection, silk top, be formed with the chamfering blades face on the cutting edge face, this chamfering blades face is led for local cracking resistance and is cut platform 20, cracking resistance is led and is cut platform 20 and intersect with side cutting face or rear cutting face, the cutting silk sword 21 or the chamfering silk sword 22 that form are cracking resistance silk sword, the cutting edge face of each sword body 1 direction of rotation front end pushes up the concentrically ringed angle c at 4 places with silk, greater than the cutting edge face at rear portion and the concentrically ringed angle b at 4 places, silk top, the silk ends 28 diameter of at least the first cutting silk sword of the front end of the direction of rotation of each sword body is

The silk ends 3 diameter less than the cutting silk sword at rear portion

28 with at the bottom of other 3 at the bottom of at least the first cutting silk sword silk at the chamfering place of each sword body, be at least stair-stepping arrangement of one-level, or the arrangement of spiral step shape, and at the bottom of at least the first cutting silk sword silk 28, with 3 lines on the cutting edge face at the bottom of other, not on straight line or helix, part or all of the cutting edge face of each sword body is processed into one, forming one little sword face and be cracking resistance cuts platform 18 or cracking resistance and leads and cut platform 20, cracking resistance is led and is cut platform 20 and namely efficiently cut the chip removal cell wall that platform 15 or cracking resistance are cut platform 18 and be connected with the cutting edge face at place, not on a curved surface or helicoid, the silk sword body of screw tap or combined cut circular cone is a kind of in the following type: tapering silk sword body screw tap or circular cone, raw silk rings sword body screw tap or circular cone, taenidium sword body screw tap or circular cone, or cast screw tap or circular cone, or other polyhedron shape screw tap or circular cones, the part of the cutting edge face of each sword body is processed into one, forming one little sword face and be cracking resistance cuts platform 18 or cracking resistance and leads and cut platform 20, the cutting edge face at little silk sword face and place or the chip removal hole wall that is connected be not on a curved surface, the cutting edge face at chamfering place and a concentrically ringed angle c at place, top are greater than the cutting edge face at rear portion and the concentrically ringed angle b at silk top or a place, top; On the cutting direction of each sword body there is one the outer end at the chamfering place of cutting silk sword, or compound setting, a tap holder 29 of diameter at the bottom of diameter is slightly less than thread.

Embodiment 11

Such as Figure 21, Figure 22 is described, minute footpath guiding combined cutting screw tap or the combined cut circular cone of the 11 embodiment, first---on the basis of the technique effect of ten embodiments, the gas thread spiral tap of combined cut of the present invention comprises that screw tap silk sword body 1 is connected with tap holder and connects or form as one, connect on the screw tap or one be provided with at least one sword body 1, or at least one taenidium sword body 1, or at least one tapering silk sword body 1, there is a cutting edge face 6 front of each sword body, in minute axial forward end of footpath guiding combined cutting screw tap, the face of the cutting edge face 6 rear side chamferings 8 of cutting feed place is rear cutting face 7, the face of cutting edge face 6 exterior sides is side cutting face 8, cutting edge face 6 and the rear cutting face 7 crossing chamfering silk swords 9 that are formed with, or cutting edge face 6 and the side cutting face 8 crossing cutting silk swords 11 that are formed with, the diameter at the silk end 3 is

The diameter on silk top 4 is

It is characterized in that: in the inboard of the cutting edge face 6 of silk sword body 1 on cutting direction, stepped projection be formed with at least one-level arc convex or oblique protruding 12, at least one-level combined cutting edges face 13 with the inboard, or arc convex or oblique protruding 12 and 13 in combined cutting edges face, be formed with the compound decomposition platform 10 that extends to form forward through arc convex or oblique projection, stair-stepping cutting edge face 6 is for efficiently cutting platform, the outermost platform of efficiently cutting is that cracking resistance is cut platform 18, outermost cutting silk sword or spiral cutting silk sword are cracking resistance silk sword 17, inner bulge efficiently cut platform 15 and arc convex or oblique protruding 12, or compound location decomposition platform 10 intersects, the combined cut silk sword 19 that forms is efficient minute cutting blade 19, arc convex or oblique protruding 12 extends on cutting silk sword or the spiral cutting silk sword, be formed with the recessed sword of side or skew back sword 16, with stair-stepping cutting silk sword, outermost cutting silk tooth shape becomes cracking resistance silk sword 17, cracking resistance is cut platform 18, or cracking resistance is led and is cut platform, or efficiently cut platform 15, the contextual definition of the height of efficiently cutting platform adjacent with the inboard is respectively, cracking resistance is cut platform or is efficiently cut platform and the height h that efficiently cuts platform of adjacent inboard is that the depth of cut multiply by the product number, when the higher and cutter of work piece hardness or viscosity is larger, the cutting depth of cut is less, the product number that the depth of cut is taken advantage of is larger, when the higher and cutter of work piece hardness or viscosity hour, the cutting depth of cut is less, the product number that the depth of cut is taken advantage of is larger, when the lower and cutter of work piece hardness or viscosity is larger, the cutting depth of cut is larger, the product number that the depth of cut is taken advantage of is less, when the lower and cutter of work piece hardness or viscosity hour, the cutting depth of cut is larger, the product number that the depth of cut is taken advantage of is less, or cracking resistance is cut platform 18 or is efficiently cut platform 15 and adjacent cracking resistance is decomposed 10 angles that are formed with more than or equal to 75 ° of platform, or the cracking resistance height of efficiently cutting platform 13 of cutting platform 18 or efficiently cutting platform 15 and adjacent inboard is for more than or equal to 0.01 millimeter, or less than 4/5ths of the thickness of the bits of discharging after this kind Tool in Cutting, or less than the height of 9 times product number of the cutting amount of feeding, or the cracking resistance width a that cuts platform is for more than or equal to 0.3 millimeter, or be less than or equal to 1/3rd of this tool diameter, or at minute cutting edge face of the cutter shaft forward end of footpath guiding combined cutting screw tap or combined cut circular cone with an intersection, silk top, be formed with the chamfering blades face on the cutting edge face, this chamfering blades face is led for local cracking resistance and is cut platform 20, cracking resistance is led and is cut platform 20 and intersect with side cutting face or rear cutting face, the cutting silk sword 21 or the chamfering silk sword 22 that form are cracking resistance silk sword, the cutting edge face of each sword body 1 direction of rotation front end pushes up the concentrically ringed angle c at 4 places with the silk end 3 or silk, the combined cut circular cone is, greater than the cutting edge face at rear portion and the concentrically ringed angle b at silk place, the ends 3, the silk end diameter of at least the first cutting silk sword of the front end of the direction of rotation of each sword body is

28 with at the bottom of other 3 at the bottom of at least the first cutting silk sword silk at the chamfering place of each sword body, be at least stair-stepping arrangement of one-level, or the arrangement of spiral step shape, and at the bottom of at least the first cutting silk sword silk 28, with 3 lines on the cutting edge face at the bottom of other, not on straight line or helix, part or all of the cutting edge face of each sword body is processed into one, forming one little sword face and be cracking resistance cuts platform 18 or cracking resistance and leads and cut platform 20, cracking resistance is led and is cut platform 20 and namely efficiently cut the chip removal cell wall that platform 15 or cracking resistance are cut platform 18 and be connected with the cutting edge face at place, not on a curved surface or helicoid.

Embodiment 12

Such as Figure 23, Figure 24 is described, minute footpath guiding combined cutting screw tap or the combined cut circular cone of the 12 embodiment, first---on the basis of the technique effect of 11 embodiments, the gas tap of combined cut of the present invention comprises that screw tap silk sword body 1 is connected with tap holder and connects or form as one, connect on the screw tap or one be provided with at least one sword body 1, or at least one taenidium sword body 1, or at least one tapering silk sword body 1, there is a cutting edge face 6 front of each sword body, in minute axial forward end of footpath guiding combined cutting screw tap, the face of the cutting edge face 6 rear side chamferings 8 of cutting feed place is rear cutting face 7, the face of cutting edge face 6 exterior sides is side cutting face 8, cutting edge face 6 and the rear cutting face 7 crossing chamfering silk swords 9 that are formed with, or cutting edge face 6 and the side cutting face 8 crossing cutting silk swords 11 that are formed with, the diameter at the silk end 3 is

The diameter on silk top 4 is

It is characterized in that: in the inboard of the cutting edge face 6 of silk sword body 1 on cutting direction, stepped projection be formed with at least one-level arc convex or oblique protruding 12, at least one-level combined cutting edges face 13 with the inboard, or arc convex or oblique protruding 12 and 13 in combined cutting edges face, be formed with the compound decomposition platform 10 that extends to form forward through arc convex or oblique projection, stair-stepping cutting edge face 6 is for efficiently cutting platform, the outermost platform of efficiently cutting is that cracking resistance is cut platform 18, outermost cutting silk sword or spiral cutting silk sword are cracking resistance silk sword 17, inner bulge efficiently cut platform 15 and arc convex or oblique protruding 12, or compound location decomposition platform 10 intersects, the combined cut silk sword 19 that forms is efficient minute cutting blade 19, arc convex or oblique protruding 12 extends on cutting silk sword or the spiral cutting silk sword, be formed with the recessed sword of side or skew back sword 16, with stair-stepping cutting silk sword, outermost cutting silk tooth shape becomes cracking resistance silk sword 17, cracking resistance is cut platform 18, or cracking resistance is led and is cut platform, or efficiently cut platform 15, the contextual definition of the height of efficiently cutting platform adjacent with the inboard is respectively, cracking resistance is cut platform or is efficiently cut platform and the height h that efficiently cuts platform or the h ' of adjacent inboard multiply by the product number for the depth of cut, when the higher and cutter of work piece hardness or viscosity is larger, the cutting depth of cut is less, the product number that the depth of cut is taken advantage of is larger, when the higher and cutter of work piece hardness or viscosity hour, the cutting depth of cut is less, the product number that the depth of cut is taken advantage of is larger, when the lower and cutter of work piece hardness or viscosity is larger, the cutting depth of cut is larger, the product number that the depth of cut is taken advantage of is less, when the lower and cutter of work piece hardness or viscosity hour, the cutting depth of cut is larger, the product number that the depth of cut is taken advantage of is less, or cracking resistance is cut platform 18 or is efficiently cut platform 15 and adjacent cracking resistance is decomposed 10 angles that are formed with more than or equal to 75 ° of platform, or the cracking resistance height of efficiently cutting platform 13 of cutting platform 18 or efficiently cutting platform 15 and adjacent inboard is for more than or equal to 0.01 millimeter, or less than 4/5ths of the thickness of the bits of discharging after this kind Tool in Cutting, or less than the height of 9 times product number of the cutting amount of feeding, or cracking resistance is cut the width a of platform or a ' for more than or equal to 0.3 millimeter, or be less than or equal to 1/3rd of this tool diameter, or at minute cutting edge face of the cutter shaft forward end of footpath guiding combined cutting screw tap or combined cut circular cone with an intersection, silk top, be formed with the chamfering blades face on the cutting edge face, this chamfering blades face is led for local cracking resistance and is cut platform 20, cracking resistance is led and is cut platform 20 and intersect with side cutting face or rear cutting face, the cutting silk sword 21 or the chamfering silk sword 22 that form are cracking resistance silk sword, the cutting edge face of each sword body 1 direction of rotation front end pushes up the concentrically ringed angle c at 4 places with silk 3 or silk, the combined cut circular cone is, greater than the cutting edge face at rear portion and the concentrically ringed angle b at silk place, the ends 3, the silk end diameter of at least the first cutting silk sword of the front end of the direction of rotation of each sword body is

Although more than be illustrated as an example of the circular plate type circular cone example, it is any circular cones such as square hexagon tubulose circular cone that but circular cone of the present invention also can have more shells, its principal character is little silk sword face 5 for the cutting edge face on the silk sword body 1 processes, diameter is greater than diameter at the bottom of other at the bottom of the one or two of the sword of silk, and the outer end at silk sword body 11 cutting edge face places or little silk sword face 5 places arranges the mode of positioning table or positioning round table and carries out multiple combination.

Although more than with screw tap or combined cut circular cone, arc convex or oblique projection extend to form the recessed sword of side or skew back sword, with stair-stepping cutting edge, cut face with efficient cracking resistance, efficient cracking resistance silk sword has been strengthened the intensity of screw tap or combined cut circular cone greatly, and following applied in any combination has further enlarged neoteric range of application, 1, the silk end diameter of at least the first cutting silk sword at the chamfering place of each sword bar is less than the silk end diameter of other cutting silk swords, be at least stair-stepping arrangement of one-level or the arrangement of spiral step shape with at the bottom of other at the bottom of the cutting silk sword silk at the chamfering place of each sword bar, and at the bottom of at least the first cutting silk sword silk with at the bottom of other at the line on the cutting edge face not on straight line or helix; 2, part or all of the cutting edge face of each sword bar is processed into one, forms one little sword face, and the cutting edge face at little silk sword face and place or the chip removal cell wall that is connected be not on a curved surface or helicoid; 3, screw tap or combined cut circular cone that the concentrically ringed angle at the cutting edge face at each sword bar chamfering place and 5 places, silk top is combined greater than the in twos combination of three kinds of different technical schemes of the concentrically ringed angle at the cutting edge face at rear portion and 5 places, silk top or three kinds of different technical schemes are that example is illustrated, but screw tap of the present invention or combined cut circular cone are multistage stair-stepping arrangement or the arrangement of spiral step shape at the bottom of also can having the different cutting silk sword silk of a plurality of diameters of each sword bar 3, the cutting edge face pushes up concentrically ringed a plurality of different angles at 5 places from silk, part or all of the cutting edge face of each sword bar is processed into one, and the mode that forms a plurality of different little silk sword faces is carried out multiple combination.

Above-described preferred embodiment is illustrative, and the technical program also has other embodiment present specification to enumerate no longer one by one certainly, and the specific embodiment that claim of the present invention limits and derivative schemes thereof all fall into protection scope of the present invention.

Claims

1. divide footpath guiding combined cutting screw tap or combined cut circular cone, comprise screw tap silk sword body and handle of a knife, screw tap silk sword body is connected with handle of a knife or forms as one, or circular cone silk sword body and shell, circular cone silk sword body is connected with shell or forms as one, connect on screw tap or the circular cone or one be provided with at least one sword body, or at least one taenidium sword body, or at least one tapering silk sword body, the front end of the direction of rotation of each sword body has a cutting edge face, front end in the direction of rotation of dividing footpath guiding combined cutting screw tap or combined cut circular cone, the face of the cutting edge face rear side chamfering of cutting feed place is rear cutting face, the face of cutting edge face exterior side is the side cutting face, the crossing chamfering silk sword that is formed with in cutting edge face and rear cutting face, or the crossing cutting silk sword that is formed with of cutting edge face and side cutting face, it is characterized in that: in the inboard of the cutting edge face of silk sword body on cutting direction, stepped projection be formed with at least one-level arc convex or oblique projection, at least one-level combined cutting edges face with the inboard, or between arc convex or oblique projection and combined cutting edges face, be formed with the compound decomposition platform that extends to form forward through arc convex or oblique projection, stair-stepping cutting edge face is for efficiently cutting platform, the outermost platform of efficiently cutting is that cracking resistance is cut platform, outermost cutting silk sword or spiral cutting silk sword are cracking resistance silk sword, or inner bulge efficiently cut platform and arc convex or oblique projection, or compound location decomposition platform intersects, the combined cut silk sword that forms is efficient minute cutting blade, arc convex or oblique projection extend to and are formed with the recessed sword of side or skew back sword on cutting edge or the spiral cutting sword, with stair-stepping cutting edge, outermost cutting silk tooth shape becomes cracking resistance silk sword, or the contextual definition that cracking resistance is cut platform or efficiently cut platform and the inboard adjacent height of efficiently cutting platform is, cracking resistance is cut platform or is efficiently cut platform and the height of efficiently cutting platform of adjacent inboard is that the depth of cut multiply by the product number, when the higher and cutter of work piece hardness or viscosity is larger, the cutting depth of cut is less, the product number that the depth of cut is taken advantage of is larger, when the higher and cutter of work piece hardness or viscosity hour, the cutting depth of cut is less, the product number that the depth of cut is taken advantage of is larger, when the lower and cutter of work piece hardness or viscosity is larger, the cutting depth of cut is larger, the product number that the depth of cut is taken advantage of is less, when the lower and cutter of work piece hardness or viscosity hour, the cutting depth of cut is larger, the product number that the depth of cut is taken advantage of is less, or cracking resistance is cut platform or is efficiently cut platform and adjacent cracking resistance is decomposed interstation and is formed with angle more than or equal to 75 °, cracking resistance cut platform or efficiently cut platform and the height of efficiently cutting platform of adjacent inboard for more than or equal to 0.01 millimeter, or less than 4/5ths of the thickness of the bits of discharging after this kind Tool in Cutting, or less than the height of 9 times product number of the cutting amount of feeding, or the cracking resistance width of cutting platform is for more than or equal to 0.3 millimeter, or be less than or equal to 1/3rd of this tool diameter, or at minute cutting edge face of the cutter shaft forward end of footpath guiding combined cutting screw tap or combined cut circular cone with an intersection, silk top, be formed with cutting edge face or cracking resistance and cut chamfering blades face on the platform, the combined cutting edges face that arranges at the chamfering blades face is led for local cracking resistance and is cut platform, cracking resistance is led Qie Tai and is intersected with side cutting face or rear cutting face, and the cutting silk sword of formation or chamfering silk sword are cracking resistance silk sword.

2. as claimed in claim 1 minute footpath guiding combined cutting screw tap or combined cut circular cone, comprise screw tap silk sword body, or circular cone silk sword body and shell, circular cone silk sword body is connected with shell or forms as one, connect on screw tap or the circular cone or one be provided with a plurality of sword bodies, the front end of the direction of rotation of each sword body has a cutting edge face, it is characterized in that, the concentrically ringed angle of the cutting edge face of each sword body direction of rotation front end and silk top or silk bottom, combined cutting screw tap is, greater than the cutting edge face at the rear portion concentrically ringed angle with place, silk top, or the combined cut circular cone is, less than the cutting edge face at rear portion and the concentrically ringed angle of silk bottom.

3. as claimed in claim 1 minute footpath guiding combined cutting screw tap or combined cut circular cone, comprise screw tap silk sword body, or circular cone silk sword body and shell, circular cone silk sword body is connected with shell or forms as one, connect on screw tap or the circular cone or one be provided with a plurality of sword bodies, the front end of the direction of rotation of each sword body has a cutting edge face, it is characterized in that, the silk end of at least the first cutting silk sword of the front end of the direction of rotation of each sword body or the diameter on silk top are respectively, combined cutting screw tap is the silk end diameter less than the cutting silk sword at rear portion, or the combined cut circular cone is the silk top diameter greater than the cutting silk sword at rear portion, at the bottom of the cutting silk sword silk at the chamfering place of each sword body or silk top and at the bottom of other or silk top, be at least stair-stepping arrangement of one-level, or the arrangement of spiral step shape, and at the bottom of at least the first cutting silk sword silk or silk top, with at the bottom of other or silk withstand on line on the cutting edge face, not on straight line or helix.

4. as claimed in claim 1 minute footpath guiding combined cutting screw tap or combined cut circular cone, comprise screw tap silk sword body, or circular cone silk sword body and shell, circular cone silk sword body is connected with shell or forms as one, connect on screw tap or the circular cone or one be provided with a plurality of sword bodies, the front end of the direction of rotation of each sword body has a cutting edge face, it is characterized in that, part or all of the cutting edge face of each sword body is processed into one, form one little sword face, little silk sword face and the cutting edge face at place or the chip removal cell wall that is connected be not on a curved surface or helicoid.

5. as claimed in claim 1 minute footpath guiding combined cutting screw tap or combined cut circular cone, comprise screw tap silk sword body, or circular cone silk sword body and shell, circular cone silk sword body is connected with shell or forms as one, connect on screw tap or the circular cone or one be provided with a plurality of sword bodies, the front end of the direction of rotation of each sword body has a cutting edge face, it is characterized in that, the combined cutting screw tap of at least the first cutting silk sword at the chamfering place of each sword body is that silk end diameter is less than the silk end diameter of the cutting silk sword at rear portion, or the combined cut circular cone is that silk top diameter is greater than the silk top diameter of the cutting silk sword at rear portion, at the bottom of the cutting silk sword silk at the chamfering place of each sword body or silk top is at least stair-stepping arrangement of one-level or the arrangement of spiral step shape with at the bottom of other or silk top, and at the bottom of at least the first cutting silk sword silk or silk top with at the bottom of other or silk withstand on line on the cutting edge face not on one straight line or helix, be processed into one with part or all of the cutting edge face of each sword body, form one little sword face, little silk sword face and the cutting edge face at place or the not combination on a curved surface or helicoid of chip removal cell wall that is connected.

6. as claimed in claim 1 minute footpath guiding combined cutting screw tap or combined cut circular cone, comprise screw tap silk sword body, or circular cone silk sword body and shell, circular cone silk sword body is connected with shell or forms as one, connect on screw tap or the circular cone or one be provided with a plurality of sword bodies, the front end of the direction of rotation of each sword body has a cutting edge face, it is characterized in that, the silk end of at least the first cutting silk sword at the chamfering place of each sword body or the diameter on silk top, be less than or greater than the diameter on the silk end or the silk top of other cutting silk sword, at the bottom of the cutting silk sword silk at the chamfering place of each sword body or silk top is at least stair-stepping arrangement of one-level or the arrangement of spiral step shape with at the bottom of other or silk top, and at the bottom of at least the first cutting silk sword silk or silk top with at the bottom of other or silk withstand on line on the cutting edge face not on one straight line or helix, with the concentrically ringed angle combined cutting screw tap at the cutting edge face at each sword body chamfering place and silk top or place, silk top be greater than, or the combined cut circular cone is less than the combination with the concentrically ringed angle of silk top or silk bottom of, the cutting edge face at rear portion.

7. as claimed in claim 1 minute footpath guiding combined cutting screw tap or combined cut circular cone, comprise screw tap silk sword body, or circular cone silk sword body and shell, circular cone silk sword body is connected with shell or forms as one, connect on screw tap or the circular cone or one be provided with a plurality of sword bodies, the front end of the direction of rotation of each sword body has a cutting edge face, it is characterized in that, part or all of the cutting edge face of each sword body is processed into one, form one little sword face, the cutting edge face at little silk sword face and place or the chip removal cell wall that is connected be not on a curved surface or helicoid, with the cutting edge face at each sword body chamfering place and the concentrically ringed angle of silk top or silk bottom, combined cutting screw tap is greater than the cutting edge face at rear portion and the concentrically ringed angle of silk bottom, or the combined cut circular cone is the combination less than cutting edge face with the concentrically ringed angle at place, silk top at rear portion.

8. as claimed in claim 1 minute footpath guiding combined cutting screw tap or combined cut circular cone, comprise screw tap silk sword body, or circular cone silk sword body and shell, circular cone silk sword body is connected with shell or forms as one, connect on screw tap or the circular cone or one be provided with a plurality of sword bodies, the front end of the direction of rotation of each sword body has a cutting edge face, it is characterized in that; 1, the silk end of at least the first of the chamfering place of each sword body the cutting silk sword or silk top diameter, be less than or greater than the silk end or the silk top diameter of other cutting silk swords, at the bottom of the cutting silk sword silk at the chamfering place of each sword body or silk top, be at least stair-stepping arrangement of one-level with at the bottom of other or silk top, or the arrangement of spiral step shape, and at the bottom of at least the first cutting silk sword silk or silk top with at the bottom of other or silk withstand on line on the cutting edge face not on straight line or helix; 2, part or all of the cutting edge face of each sword body is processed into one, forms one little sword face, and the cutting edge face at little silk sword face and place or the chip removal cell wall that is connected be not on a curved surface or helicoid; 3, the cutting edge face at each sword body chamfering place with the concentrically ringed angle combined cutting screw tap of silk top or silk bottom is, greater than or the combined cut circular cone be less than, the cutting edge face at the rear portion concentrically ringed angle with silk top or a bottom; More than the various combinations of three kinds of different technical schemes.

9. as claimed in claim 1 minute footpath guiding combined cutting screw tap or combined cut circular cone, it is characterized in that, the silk sword body of screw tap or combined cut circular cone is a kind of in the following type: tapering silk sword body screw tap or circular cone, raw silk rings sword body screw tap or circular cone, taenidium sword body screw tap or circular cone, or cast silk sword body screw tap or circular cone, or other polyhedron shape screw tap or circular cones.

10. as claimed in claim 1 minute footpath guiding combined cutting screw tap or combined cut circular cone, comprise screw tap silk sword body, or circular cone silk sword body and shell, circular cone silk sword body is connected with shell or forms as one, connect on screw tap or the circular cone or one be provided with a plurality of sword bodies, the front end of the direction of rotation of each sword body has a cutting edge face, it is characterized in that, the part of the cutting edge face of each sword body is processed into one, form one little sword face, the cutting edge face at little silk sword face and place or the chip removal hole wall that is connected be not on a curved surface, the concentrically ringed angle of the cutting edge face at chamfering place and silk top or the silk end or silk bottom, combined cutting screw tap be greater than, or the combined cut circular cone is less than, the cutting edge face at the rear portion concentrically ringed angle with silk top or silk bottom; There is one the outer end at the chamfering place of cutting silk sword on the cutting direction of each sword body, or compound setting, and slightly larger in diameter is at the bottom of silk or the positioning table of silk top diameter, or locating ring, or positioning round table.