CN207547657U

CN207547657U - A kind of cutting tool

Info

Publication number: CN207547657U
Application number: CN201721626006.5U
Authority: CN
Inventors: 高荣
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-11-28
Filing date: 2017-11-28
Publication date: 2018-06-29
Anticipated expiration: 2027-11-28

Abstract

A kind of cutting tool, the cutting tool is equipped at least two side surfaces, the two neighboring side surface passes through arc surface transition, the middle part of the top side of the cutting tool is equipped with chip breaker, chip curling groove is equipped between the edge of the top side of the chip breaker and the cutting tool, the slot internal face of the chip curling groove toward chip breaker intersects with the side surface and forms end cutting edge, the slot internal face of the chip curling groove toward chip breaker intersects with the arc surface and forms main cutting edge, the bottommost of the chip curling groove is slot bottom, the end cutting edge and the main cutting edge to being equipped with major first face successively between the slot bottom, second rake face and third rake face.The setting of major first face and the second rake face can make the cutter adapt to different cutting depth and feed speed, not only ensure that cutting edge had enough intensity but also reduces cutting resistance.

Description

A kind of cutting tool

Technical field

The utility model is related to machine tool technical field more particularly to a kind of cutting tools.

Background technology

Cutting tool of the prior art does not adapt to different cutting depth and feed speed, in addition, it cannot be guaranteed that cutting Cutting cutlery has enough intensity and cannot reduce cutting resistance so that cutting tool of the prior art, which is not achieved, increasingly to be carried High production requirement.

Invention content

In view of the deficiencies of the prior art, the purpose of this utility model is to provide a kind of cutting tool, can adapt to difference Cutting depth and feed speed, not only ensure that cutting edge had enough intensity but also reduces cutting resistance.

In order to solve the above-mentioned technical problem, technical solution is used by the utility model：

A kind of cutting tool, the cutting tool are equipped at least two side surfaces, and the two neighboring side surface passes through circle Cambered surface transition, the middle part of the top side of the cutting tool are equipped with chip breaker, the chip breaker and the top side of the cutting tool Chip curling groove is equipped between edge, the slot internal face of the chip curling groove toward chip breaker intersects with the side surface and forms pair and cut Sword is cut, the slot internal face of the chip curling groove toward chip breaker intersects with the arc surface and forms main cutting edge, the volume bits The bottommost of slot knife to before being equipped with first successively between the slot bottom for slot bottom, the end cutting edge and the main cutting edge Face, the second rake face and third rake face.

Specifically, the major first face and the angle between the cross section of the side surface are B, 9 °≤B≤ 11°。

Specifically, the angle between second rake face and the cross section is C, 12 °≤C≤14 °.

Specifically, the angle between the third rake face and the cross section is D, 15 °≤D≤23 °.

Specifically, the top surface of the chip breaker is the second filings-breaking surface, and the chip breaker is in the position corresponding to main cutting edge Equipped with the spur towards evagination, the top of the spur is equipped with the first filings-breaking surface, and first filings-breaking surface is stripped, and described first The inner end of filings-breaking surface is connected with the second filings-breaking surface, and the outer end of first filings-breaking surface is connected with the slot bottom, first chip breaking Distance is L 1,1≤2.8mm of 1.0mm≤L between the outer end in face and the middle part of the main cutting edge.

Specifically, the end cutting edge includes end to end shear blade and transitional edges, and the shear blade is cut relative to the master Sword is cut towards being recessed, the transitional edges are obliquely connected between the shear blade and the main cutting edge.

Specifically, the top surface of the chip breaker is the second filings-breaking surface, from the both ends of the main cutting edge to the main cutting The middle part of sword is gradually close towards the top side direction of the cutting tool, the peak of the main cutting edge and second filings-breaking surface The distance between be L2,2≤0.25mm of 0.1mm≤L.

Specifically, from the both ends of the main cutting edge to the middle part of the main cutting edge gradually towards the top of the cutting tool Side direction is close, and the difference in height between the peak of the minimum point of the shear blade and the main cutting edge is L 3,0.46mm≤L 3≤0.58mm。

Specifically, transitional edges and the angle between the cross section of the side surface are E, 5 °≤E≤7 °.

Specifically, the distance between the main cutting edge and the slot bottom are L4,4≤0.28mm of 0.22mm≤L.

The beneficial effects of the utility model are：

A kind of cutting tool of the utility model, end cutting edge and main cutting edge to before being equipped with first successively between slot bottom Knife face, the second rake face and third rake face.Major first face, the second rake face and third rake face with perpendicular to the side table The angle of the cross section in face is different, and the setting of major first face and the second rake face can make the cutter adapt to different cutting depths Degree and feed speed not only ensure that cutting edge had enough intensity but also reduces cutting resistance, cut in use compared with It is brisk and meet demand to larger cutting feed, ensure cutting edge strength, semifinishing and finishing can be compatible with extensively It needs, reaches the requirement of service life, improve the impact property of the cutting tool of the utility model, slow down cutting edge Abrasion, extends cutter life, improves processing efficiency.

Description of the drawings

Fig. 1 is the three-dimensional view of the cutting tool of the utility model；

Fig. 2 is the vertical view of the cutting tool of the utility model；

Fig. 3 is by the partial view of the Section View intercepted in Fig. 2 by Section A-A；

Fig. 4 is the direction view of the direction F along Fig. 2；

Fig. 5 is the partial view in the one of corner of cutting tool of the utility model.

Reference numeral is in figure：

1. side surface, 2. arc surfaces, 3. chip breakers, 4. end cutting edges,

5. main cutting edge, 6. chip curling grooves, 7. slot bottoms, 8. major first faces,

9. the second rake face, 10. third rake faces, 11. first filings-breaking surfaces,

12. the second filings-breaking surface, 13. shear blades, 14. transitional edges, 15. installation through-holes,

16. cross section.

Specific embodiment

The utility model is further described With reference to embodiment.

See Fig. 1 to Fig. 3, a kind of cutting tool, cutting tool is equipped at least two side surfaces 1, and two neighboring side surface 1 is logical Cross 2 transition of arc surface, the middle part of the top side of cutting tool is equipped with chip breaker 3, the edge of chip breaker 3 and the top side of cutting tool it Between be equipped with chip curling groove 6, the slot internal face of chip curling groove 6 toward chip breaker 3 intersect with side surface 1 and forms end cutting edge 4, rolls up and considers to be worth doing The slot internal face of slot 6 toward chip breaker 3 intersects with arc surface 2 and forms main cutting edge 5, and the bottommost of chip curling groove 6 is slot bottom 7, end cutting edge 4 and main cutting edge 5 to being equipped with knife before major first face 8, the second rake face 9 and third successively between slot bottom 7 Face 10.

End cutting edge 4 and main cutting edge 5 to being equipped with major first face 8, the second rake face 9 and the successively between slot bottom 7 Three rake faces 10.Major first face 8, the second rake face 9 and third rake face 10 with perpendicular to the cross section 16 of the side surface 1 Angle it is different.The setting of 8 and second rake face 9 of major first face can make the cutter adapt to different cutting depth and feeding Speed not only ensure that the intensity of cutting edge but also reduce cutting resistance, cuts more brisk and meets to larger in use Cutting feed demand, ensure cutting edge strength, the needs of semifinishing and finishing can be compatible with extensively, reach service life Requirement, improve the impact property of the cutting tool of the utility model, slow down the abrasion of cutting edge, extending cutter makes With the service life, processing efficiency is improved.

Specifically, see Fig. 3, the angle between major first face 8 and above-mentioned cross section 16 is B, 9 °≤B≤11 °.

Specifically, see Fig. 3, the angle between the second rake face 9 and above-mentioned cross section 16 is C, 12 °≤C≤14 °.First The width L6 of rake face 8 is 0.35mm；Major first face 8 is under the mutual cooperation effect with the second rake face 9, before realizing change Corner structure, this enables the cutting tool of the utility model to change anterior angle according to different cutting-ins, so as to expand this practicality The novel range of work so that the utility model cutting tool, which had not only had enough intensity but also reduced in machining process, to be born Cutting resistance, so as to further improve the impact property of the cutting tool of the utility model.Preferably, the second rake face 9 substantially arc surfaces so that major first face 8 and the 10 smooth connection of third rake face.It is further preferred that slot bottom 7 is substantially Arc surface so that the smooth transition in region from major first face 8 to slot bottom 7.Due to finishing and semifinishing cutting depth compared with It is shallow, but the feeding finished is slow, and semi-finished feeding is fast, the smooth mistake in region of above-mentioned major first face 8 to slot bottom 7 It crosses so that the cutting tool of the utility model can generate the iron filings of ideal form during cutting.

Specifically, see Fig. 3, the angle between third rake face 10 and above-mentioned cross section 16 is D, 15 °≤D≤23 °.

Specifically, with reference to Fig. 1, Fig. 2, the top surface of chip breaker is the second filings-breaking surface, and chip breaker is corresponding to main cutting edge Position is equipped with the spur towards evagination, and the top of spur is equipped with the first filings-breaking surface, and the first filings-breaking surface is stripped, the first filings-breaking surface Inner end is connected with the second filings-breaking surface, and the outer end of the first filings-breaking surface is connected with slot bottom, the outer end of the first filings-breaking surface and main cutting edge Distance is L1 (see Fig. 5), 1≤2.8mm of 1.0mm≤L between middle part.Cutting swarf successively breaks after being rolled by chip curling groove 6 by first Then 11 and second filings-breaking surface 12 of bits face is disconnected from workpiece.First filings-breaking surface 11 and the second filings-breaking surface respectively 12 with it is above-mentioned transversal The angle in face 16 is different so that the curling of cutting swarf is more reasonable, improves cutting ability.

Specifically, see Fig. 4, end cutting edge 4 includes end to end shear blade 13 and transitional edges 14, and shear blade 13 is cut relative to master Sword 5 is cut towards being recessed, transitional edges 14 are obliquely connected between shear blade 13 and main cutting edge 5.Shear blade 13 is relative to main cutting edge 5 Court is recessed so that the reasonably recess extension along 4 direction of end cutting edge of the cutting tool of the utility model neither influences cutting The intensity of cutter enables the cutting tool of the utility model to reduce cutting resistance when encountering big cutting-in again, extends cutting tool The processing service life.

Specifically, with reference to Fig. 2, Fig. 3, the top surface of chip breaker 3 is the second filings-breaking surface 12, from the both ends of main cutting edge 5 to master The middle part of cutting edge 5 is gradually close towards the top side direction of cutting tool, between the peak of main cutting edge 5 and the second filings-breaking surface 12 Distance be L2,0.1mm≤L2≤0.25mm.

Specifically, Fig. 3 is seen, from the both ends of main cutting edge 5 to the middle part of main cutting edge 5 gradually towards the top side side of cutting tool To close, the difference in height between the minimum point of shear blade 13 and the peak of main cutting edge 5 is L 3,0.46mm≤L3≤0.58mm.

Specifically, see Fig. 4, the angle between transitional edges 14 and above-mentioned cross section 16 is E, 5 °≤E≤7 °.Shear blade 13 and mistake Cross sword 14 and 5 smooth connection of main cutting edge.

Specifically, see Fig. 3, the distance between main cutting edge and slot bottom are L4,4≤0.28mm of 0.22mm≤L, so as to carry The intensity and reduction cutting resistance of high cutting edge.

Specifically, as shown in Figure 1 and Figure 2, using direction shown in Fig. 2 as reference, the cutting tool of the utility model is upper Symmetrical down or/and symmetrical polygonal body.With reference to Fig. 1 and Fig. 5, upper and lower two mistakes between adjacent two side surfaces 1 It is respectively a cutting unit to cross place, and the cutting tool for closing the utility model has eight cutting units altogether so that the utility model Cutting tool can indexing use.The basic shape of the cutting tool of the utility model may be used also other than it can be square To be parallelogram, diamond shape, triangle, pentagon, hexagon etc., these equivalents are regarded as in the utility model In protection domain.

Specifically, as shown in Figure 1 and Figure 2, installation through-hole 15 is provided in the middle part of the cutting tool of the utility model, specifically Ground, installation through-hole 15 are arranged at the geometric center of cutting tool, and the cutting tool of the utility model is solid by installation through-hole 15 Due to external handle of a knife (not shown).

Wherein, the drawings are for illustrative purposes only and are merely schematic diagrams rather than pictorial diagram, it is impossible to be interpreted as to this The limitation of patent；In order to better illustrate the utility model embodiment, the certain components of attached drawing have omission, zoom in or out, The size of actual product is not represented；It will be understood by those skilled in the art that certain known features and its explanation may save in attached drawing Slightly it will be understood by.

Above disclosed is only the preferred embodiment of the utility model, certainly cannot be new to limit this practicality with this The interest field of type, therefore the equivalent variations made according to present utility model application the scope of the claims still belong to the utility model and are covered Range.

Claims

1. a kind of cutting tool, it is characterised in that：The cutting tool is equipped at least two side surfaces, the two neighboring side table Face is equipped with chip breaker, the chip breaker and the cutting tool by arc surface transition, the middle part of the top side of the cutting tool Top side edge between be equipped with chip curling groove, the slot internal face of the chip curling groove toward chip breaker intersect with the side surface and End cutting edge is formed, the slot internal face of the chip curling groove toward chip breaker intersects with the arc surface and forms main cutting edge, The bottommost of the chip curling groove is slot bottom, the end cutting edge and the main cutting edge to being equipped with the between the slot bottom successively One rake face, the second rake face and third rake face.

2. cutting tool according to claim 1, it is characterised in that：The major first face with perpendicular to the side surface Cross section between angle be B, 9 °≤B≤11 °.

3. cutting tool according to claim 2, it is characterised in that：Between second rake face and the cross section Angle is C, 12 °≤C≤14 °.

4. cutting tool according to claim 3, it is characterised in that：Between the third rake face and the cross section Angle is D, 15 °≤D≤23 °.

5. cutting tool according to claim 1, it is characterised in that：The top surface of the chip breaker be the second filings-breaking surface, institute It states chip breaker and the spur towards evagination is equipped in the position corresponding to main cutting edge, the top of the spur is equipped with the first filings-breaking surface, First filings-breaking surface is stripped, and the inner end of first filings-breaking surface is connected with the second filings-breaking surface, first filings-breaking surface Outer end is connected with the slot bottom, and distance is L1,1.0mm between the outer end of first filings-breaking surface and the middle part of the main cutting edge ≤L1≤2.8mm。

6. cutting tool according to claim 1, it is characterised in that：The end cutting edge include end to end shear blade and Transitional edges, for the shear blade relative to the main cutting edge towards being recessed, the transitional edges are obliquely connected to the shear blade and institute It states between main cutting edge.

7. cutting tool according to claim 6, it is characterised in that：The top surface of the chip breaker is the second filings-breaking surface, from The both ends of the main cutting edge to the middle part of the main cutting edge is gradually close towards the top side direction of the cutting tool, the master The distance between the peak of cutting edge and second filings-breaking surface are L2,0.1mm≤L2≤0.25mm.

8. cutting tool according to claim 6, it is characterised in that：From the both ends of the main cutting edge to the main cutting The middle part of sword is gradually close towards the top side direction of the cutting tool, the minimum point of the shear blade and the highest of the main cutting edge Difference in height between point is L3,0.46mm≤L3≤0.58mm.

9. cutting tool according to claim 6, it is characterised in that：Transitional edges with perpendicular to the cross section of the side surface Between angle be E, 5 °≤E≤7 °.

10. cutting tool according to claim 1, it is characterised in that：Between the main cutting edge and the slot bottom away from From for L4,0.22mm≤L4≤0.28mm.