CN204338906U - Recessed trapezoidal sword cutoff tool - Google Patents
Recessed trapezoidal sword cutoff tool Download PDFInfo
- Publication number
- CN204338906U CN204338906U CN201420820005.4U CN201420820005U CN204338906U CN 204338906 U CN204338906 U CN 204338906U CN 201420820005 U CN201420820005 U CN 201420820005U CN 204338906 U CN204338906 U CN 204338906U
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- China
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- sword
- recessed trapezoidal
- cutoff tool
- cutting edge
- oblique
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Abstract
The utility model discloses a kind of recessed trapezoidal sword cutoff tool, the recessed trapezoidal cutting edge that this recessed trapezoidal sword cutoff tool comprises handle of a knife, cutter head and is positioned at cutter head front, described recessed trapezoidal cutting edge is the broken line sword being divided into three sections, left, center, right; Cut position entirety and present middle concave, the feature that both sides are convex.The utility model can realize inclined cutting, has again a point bits function, and chip can also be made away from machined surface, has self-centering characteristic simultaneously, avoids cutter head and fracture, ensure that by the accuracy of form and position of grooving, improve cutter life.
Description
Technical field
The utility model relates to cutting tool technical field, more specifically relates to a kind of recessed trapezoidal sword cutoff tool.
Background technology
Cut-out is in turnery processing, bar or workpiece is cut into the processing method of two sections or several sections. cutoff tool of the prior art can be divided into straight sword cutoff tool, tiltedly sword cutoff tool.As shown in Figure 1, straight sword cutoff tool comprises cutter head and handle of a knife, and cutting edge is positioned at before cutter head.Blade is the straight line perpendicular to cutting direction.Straight sword cutoff tool is when cutting, and as shown in Figure 4, belong to orthogonal cutting, namely cutting edge is vertical with cutting speed direction, and cutting force is large, and cut vibrations greatly, lathe power consumption is high, and machined surface, namely section quality is low.As shown in Figure 2, the blade of oblique sword cutoff tool is and cutting direction off plumb oblique line.Oblique sword cutoff tool, when cutting, as shown in Figure 5, belongs to inclined cutting, i.e. cutting edge and cutting speed direction out of plumb, cutting force is little, but under the effect of cutter head normal force on the cutting edge, oppresses to side, cause cutter head side section friction aggravation therewith, reduce the surface quality of this side section, moreover the cutter head of cutoff tool is general all weaker, under the effect of this normal force, easily fracture.Therefore need the defect overcoming above two kinds of cutoff tools, design a kind of new cutoff tool and can ensure inclined cutting, can ensure that again cutter head can not extrude to side.
Utility model content
(1) technical problem that will solve
The technical problems to be solved in the utility model is exactly the defect overcoming above-mentioned two kinds of cutoff tools, can belong to inclined cutting by guarantee section cutting edge, can ensure that again cutter head can not extrude to side, improves cutter life, provides a kind of recessed trapezoidal sword cutoff tool thus.
(2) technical scheme
In order to solve the problems of the technologies described above, the utility model provides a kind of recessed trapezoidal sword cutoff tool, the recessed trapezoidal cutting edge that this recessed trapezoidal sword cutoff tool comprises handle of a knife, cutter head and is positioned at cutter head front, and described recessed trapezoidal cutting edge is the broken line sword being divided into three sections, left, center, right; Wherein the right and left is oblique sword, and centre is chisel edge; Described chisel edge is parallel with cutter basal plane, and the oblique sword of the right and left and cutter basal plane form the cutting edge inclination of 1-30 °.
Preferably, described broken line sword is symmetrical, and the cutting edge inclination angle of the oblique sword of the right and left is equal.
Preferably, the oblique sword of described the right and left and cutter basal plane form the cutting edge inclination of 2-15 °.
Preferably, the oblique sword of described the right and left and horizontal plane form the cutting edge inclination of 5 °.
Preferably, the oblique sword of the right and left width in the horizontal direction of described recessed trapezoidal cutting edge is consistent, and the width ratio of described width and chisel edge is 0.1-1:1.
Preferably, the width ratio of the oblique sword of described the right and left width in the horizontal direction and chisel edge is 0.5:1.
Described cutting edge inclination is the angle between cutting edge and cutter basal plane.Cutting edge inclination associates with processing environment with machined material, and machined material intensity is larger, hardness is higher, and cutting edge inclination is less, otherwise larger.The cutting edge inclination of middle chisel edge is 0 °, does not change.Workpiece material hardness is larger, and intensity is higher, and chisel edge width proportion is larger, otherwise less.Described basal plane is the plane parallel with the installation bottom surface of cutter.
(3) beneficial effect
The cutoff tool entirety that the utility model relates to is symmetrical, and its cutting edge adopts symmetrical broken line sword, is divided into three sections, before be correspondingly divided into three parts, the incline direction of the oblique sword of the oblique sword in the left side and the right is symmetrical.Cut position entirety and present middle concave, the feature that both sides are convex.The utility model can realize inclined cutting, has again a point bits function, and chip can also be made away from machined surface, has self-centering characteristic simultaneously, avoids cutter head and fracture, ensure that by the accuracy of form and position of grooving, improve cutter life.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is straight sword cutoff tool schematic perspective view;
Fig. 2 is oblique sword cutoff tool schematic perspective view;
Fig. 3 is the recessed trapezoidal sword cutoff tool schematic perspective view of the utility model;
Fig. 4 is that direction operating diagram overlooked by straight sword cutoff tool 45 degree;
Fig. 5 is that direction operating diagram overlooked by oblique sword cutoff tool 45 degree;
Fig. 6 is that direction operating diagram overlooked by the recessed trapezoidal sword cutoff tool 45 degree of the utility model;
Mark in figure: 1, handle of a knife, 2, cutter head, 3, cutting edge; 3-1, left tiltedly sword; 3-2, chisel edge; 3-3, right tiltedly sword, 4, before cutter, 5, cutoff tool, 6, workpiece; A, direction of feed, B, rotary speed direction.
Detailed description of the invention
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following examples for illustration of the utility model, but can not be used for limiting scope of the present utility model.
Embodiment 1
As shown in Figure 3, the recessed trapezoidal sword cutoff tool that the present embodiment relates to, comprise handle of a knife 1, cutter head 2 and be positioned at the recessed trapezoidal cutting edge 3 in cutter head 2 front, this recessed trapezoidal cutting edge 3 is for being divided into the broken line sword of three sections, left, center, right; Wherein the right and left is oblique sword 3-1 and 3-3, and centre is chisel edge 3-2; Wherein chisel edge 3-2 is parallel with cutter basal plane, and oblique sword 3-1 and 3-3 of the right and left and cutter basal plane form the cutting edge inclination being 6 °.
Recessed trapezoidal sword cutoff tool described in the present embodiment, the width ratio of oblique sword 3-1 and 3-3 of the right and left width in the horizontal direction and chisel edge 3-2 is 1:1.
The cutoff tool that the utility model relates to adopts symmetrical broken line sword, is divided into three sections, and both sides are oblique sword, and centre is chisel edge, and entirety presents high, the middle low feature in both sides, and the cutting edge inclination of the oblique sword in both sides is identical, and middle chisel edge cutting edge inclination is zero.When cutting, as shown in Figure 6, the oblique sword in left and right can realize inclined cutting simultaneously.Be divided into three parts before cutter, echo mutually with three sections of cutting edges, global feature above is also that both sides are high, middle low.Because the incline direction before three parts is different during cutting, so chip is naturally divided into three parts, under the effect of both sides chip before both sides, gather to centre, make chip away from machined surface, improve machined surface quality.Normal component of force component in the horizontal direction suffered by the oblique sword of the oblique sword in the left side and the right is cancelled out each other, cutter head can not fracture bending under this power effect, and the oblique sword in both sides is symmetrical, have the characteristic of self-centering, this characteristic can ensure to make by grooving to the axes normal with workpiece.The cutting edge inclination of the middle oblique sword of chisel edge length and both sides can make corresponding adjustment according to different workpiece materials and working environment.So the utility model can realize inclined cutting, there is again a point bits function, chip can also be made away from machined surface, there is self-centering characteristic simultaneously, avoid cutter head and fracture, ensure that by the accuracy of form and position of grooving, improve cutter life.
The utility model effect is as follows: 1, cutting edge is broken line sword, is divided into three sections, and the right and left is oblique sword, and centre is chisel edge, and the cutting edge inclination of the oblique sword in left and right is identical, and the cutting edge inclination of middle chisel edge is zero.Be divided into three parts accordingly above.Cut position entirety and present middle concave, the feature that both sides are convex.Belong to inclined cutting during the oblique cutting on 2, both sides, middle chisel edge belongs to orthogonal cutting, and chip is naturally divided into three parts, has a point bits function.3, cutoff tool entirety is symmetrical, and the normal component of force component in the horizontal direction suffered by the oblique sword of the oblique sword in the left side and the right is cancelled out each other, and cutter head can not fracture bending, and has the characteristic of self-centering.This characteristic can ensure to make by grooving to the axes normal with workpiece.4, under the effect of both sides chip before both sides, gather to centre, away from machined surface, improve the quality of machined surface.5, the cutting edge inclination of chisel edge length and two skew back swords can make corresponding adjustment according to different workpiece materials and working environment.
Embodiment 2
Compared with embodiment 1, distinctive points is only: in the present embodiment, the oblique sword of the right and left and horizontal plane all form the cutting edge inclination of 8 °, and the width ratio of the oblique sword of the right and left width in the horizontal direction and chisel edge is 0.6:1.
Embodiment 3
Compared with embodiment 1, distinctive points is only: in the present embodiment, the oblique sword of the right and left and horizontal plane all form the cutting edge inclination of 10 °, and the width ratio of the oblique sword of the right and left width in the horizontal direction and chisel edge is 0.3:1.
Above embodiment only for illustration of the utility model, but not to restriction of the present utility model.Although be described in detail the utility model with reference to embodiment, those of ordinary skill in the art is to be understood that, various combination, amendment or equivalent replacement are carried out to the technical solution of the utility model, do not depart from the spirit and scope of technical solutions of the utility model, all should be encompassed in the middle of right of the present utility model.
Claims (6)
1. a recessed trapezoidal sword cutoff tool, is characterized in that, the recessed trapezoidal cutting edge that this recessed trapezoidal sword cutoff tool comprises handle of a knife, cutter head and is positioned at cutter head front, and described recessed trapezoidal cutting edge is the broken line sword being divided into three sections, left, center, right; Wherein the right and left is oblique sword, and centre is chisel edge; Described chisel edge is parallel with cutter basal plane, and the oblique sword of the right and left and cutter basal plane form the cutting edge inclination of 1-30 °.
2. recessed trapezoidal sword cutoff tool according to claim 1, it is characterized in that, described broken line sword is symmetrical, and the cutting edge inclination angle of the oblique sword of the right and left is equal.
3. recessed trapezoidal sword cutoff tool according to claim 1 and 2, it is characterized in that, the oblique sword of described the right and left and cutter basal plane form the cutting edge inclination of 2-15 °.
4. recessed trapezoidal sword cutoff tool according to claim 1 and 2, it is characterized in that, the oblique sword of described the right and left and cutter basal plane form the cutting edge inclination of 5 °.
5. recessed trapezoidal sword cutoff tool according to claim 1 and 2, is characterized in that, the oblique sword of the right and left width in the horizontal direction of described recessed trapezoidal cutting edge is consistent, and the width ratio of described width and chisel edge is 0.1-1:1.
6. recessed trapezoidal sword cutoff tool according to claim 5, is characterized in that, the width ratio of the oblique sword of described the right and left width in the horizontal direction and chisel edge is 0.5:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420820005.4U CN204338906U (en) | 2014-12-19 | 2014-12-19 | Recessed trapezoidal sword cutoff tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420820005.4U CN204338906U (en) | 2014-12-19 | 2014-12-19 | Recessed trapezoidal sword cutoff tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204338906U true CN204338906U (en) | 2015-05-20 |
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ID=53222208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420820005.4U Expired - Fee Related CN204338906U (en) | 2014-12-19 | 2014-12-19 | Recessed trapezoidal sword cutoff tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204338906U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106216722A (en) * | 2016-08-31 | 2016-12-14 | 石凤武 | Novel cutting breaking and processing method thereof |
-
2014
- 2014-12-19 CN CN201420820005.4U patent/CN204338906U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106216722A (en) * | 2016-08-31 | 2016-12-14 | 石凤武 | Novel cutting breaking and processing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150520 Termination date: 20151219 |
|
| EXPY | Termination of patent right or utility model |