CN204338907U - Arcs of recesses sword cutoff tool - Google Patents
Arcs of recesses sword cutoff tool Download PDFInfo
- Publication number
- CN204338907U CN204338907U CN201420820019.6U CN201420820019U CN204338907U CN 204338907 U CN204338907 U CN 204338907U CN 201420820019 U CN201420820019 U CN 201420820019U CN 204338907 U CN204338907 U CN 204338907U
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- Prior art keywords
- recesses
- arcs
- sword
- cutting edge
- cutoff tool
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- 230000000694 effects Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
Abstract
The utility model discloses a kind of arcs of recesses sword cutoff tool, the arcs of recesses cutting edge that this arcs of recesses sword cutoff tool comprises handle of a knife, cutter head and is positioned at cutter head front, cutting edge is arcs of recesses curve sword.The cutoff tool entirety that the utility model relates to is symmetrical, and its cutting edge adopts symmetrical arcs of recesses sword, before should be concave arc mutually.The utility model can ensure that each point belongs to inclined cutting, has again a point bits function, also 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 arcs of recesses 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 ensure that on cutting edge, each point belongs to inclined cutting, can ensure that again cutter head can not extrude to side, improve Tool in Cutting position intensity, and then raising cutter life, a kind of arcs of recesses sword cutoff tool is provided thus.
(2) technical scheme
In order to solve the problems of the technologies described above, the utility model provides a kind of arcs of recesses sword cutoff tool, the arcs of recesses cutting edge that this arcs of recesses sword cutoff tool comprises handle of a knife, cutter head and is positioned at cutter head front, and arcs of recesses cutting edge is arcs of recesses curve sword; On described arcs of recesses curve, the tangent line of each point and cutter basal plane form the left and right cutting edge inclination of 0-30 °.
Preferably, described arcs of recesses sword is symmetrical, and on arcs of recesses cutting edge, the cutting edge inclination of each point is different, and on arcs of recesses sword, the angle of cutting edge inclination of symmetrical 2 is equal, and on arcs of recesses cutting edge, the cutting edge inclination of minimum point is zero.
Preferably, described arcs of recesses sword is concave arc sword.
Preferably, described concave arc diameter is 80mm-1000mm.
Preferably, on described arcs of recesses curve, the tangent line of each point and cutter basal plane form the left and right cutting edge inclination of 0-15 °.
Preferably, on described arcs of recesses curve, the tangent line of each point and cutter basal plane form the left and right cutting edge inclination of 0-5 °.
Described cutting edge inclination is the angle between the tangent line of Chosen Point on concave arc sword and cutter basal plane.On concave arc sword, the cutting edge inclination of each point is different, and the point of a knife point cutting edge inclination of highest point is 0 °, prolongs life from point of a knife to both sides, and cutting edge inclination becomes large.The cutting edge inclination at concave arc two-end-point place is maximum.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.Described cutter basal plane is the plane parallel with the installation bottom surface of cutter.The diameter of concave arc is relevant with machined material and processing environment.Machined material intensity is higher, hardness is larger, and in order to strengthen the intensity of blade, the diameter of concave arc is also larger.
(3) beneficial effect
The cutoff tool entirety related to of the present utility model is symmetrical, and its cutting edge adopts symmetrical arcs of recesses sword, before should be concave arc mutually.Cut position entirety and present concavity.The utility model can ensure that each point belongs to inclined cutting, and chip can be made again away from machined surface, also 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 utility model concave arc sword cutoff tool schematic perspective view;
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 utility model concave arc sword cutoff tool 45 degree;
Mark in figure: 1, handle of a knife, 2, cutter head, 3, cutting edge, 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 arcs of recesses sword cutoff tool that the present embodiment relates to, comprise handle of a knife 1, cutter head 2 and be positioned at the arcs of recesses cutting edge 3 in cutter head front, arcs of recesses cutting edge 3 is arcs of recesses curve sword, described concave arc can be the concave arc lines such as concave arc, recessed elliptic arc, recessed parabola, recessed hyperbola, preferred concave arc.Described arcs of recesses sword is symmetrical, and the angle of left cutting edge inclination and right cutting edge inclination is equal.On described arcs of recesses curve, the tangent line of each point and cutter basal plane form the left and right cutting edge inclination of 0-15 °.
Specifically, the cutoff tool that the utility model relates to adopts symmetrical concave arc sword, entirety presents to recessed feature, on concave arc sword, the cutting edge inclination of each point is different, be tangential direction and the horizontal plane angle of each point, more larger away from plane of symmetry cutting edge inclination, the cutting edge inclination of symmetrical 2 is identical.When cutting, as shown in Figure 6, each point can realize inclined cutting simultaneously.Relatively with concave arc cutting edge before cutter should be concaved circular cambered surface, entirety presents to recessed feature.During cutting, because the normal direction going up each point is above different, chip, under effect above, is gathered to centre, thus away from machined surface, improves machined surface quality.On concave arc sword, the normal component of force of symmetrical 2 component is in the horizontal direction cancelled out each other, cutter head can not fracture bending under this power effect, and both sides concave arc sword is symmetrical, have the characteristic of self-centering, this characteristic can ensure to make by grooving to the axes normal with workpiece.The radius of concave arc sword can make corresponding adjustment according to different workpiece materials and working environment.So the present invention can ensure that each point belongs to inclined cutting, chip can be made again away from machined surface, also 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 concave arc sword, symmetrical, and the symmetrical cutting edge inclination of 2 in left and right is identical, and more larger away from plane of symmetry cutting edge inclination.2, cut position entirety and present concavity.When concave arc sword cuts, each point belongs to inclined cutting, and because the normal direction going up each point is above different, chip is gathered to centre, away from machined surface, improves the quality of machined surface.3, cutoff tool entirety is symmetrical, and the symmetrical normal component of force component in the horizontal direction of 2 in left and right is cancelled out each other, and cutter head can not fracture bending, and has the characteristic of self-centering.4, the radius of cutting edge concave arc can make corresponding adjustment according to different workpiece materials and working environment.
Embodiment 2
Compared with embodiment 1, distinctive points is only: on the present embodiment concave arc curve, the tangent line of each point and cutter basal plane form the left and right cutting edge inclination of 0-8 °.
Embodiment 3
Compared with embodiment 1, distinctive points is only: on the present embodiment concave arc curve, the tangent line of each point and cutter basal plane form the left and right cutting edge inclination of 0-5 °.
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. an arcs of recesses sword cutoff tool, is characterized in that, the arcs of recesses cutting edge that this arcs of recesses sword cutoff tool comprises handle of a knife, cutter head and is positioned at cutter head front, and arcs of recesses cutting edge is arcs of recesses curve sword; On described arcs of recesses curve, the tangent line of each point and cutter basal plane form the left and right cutting edge inclination of 0-30 °.
2. arcs of recesses sword cutoff tool according to claim 1, it is characterized in that, described arcs of recesses sword is symmetrical, and on arcs of recesses cutting edge, the cutting edge inclination of each point is different, on arcs of recesses sword, the angle of cutting edge inclination of symmetrical 2 is equal, and on arcs of recesses cutting edge, the cutting edge inclination of minimum point is zero.
3. arcs of recesses sword cutoff tool according to claim 1 and 2, is characterized in that, described arcs of recesses sword is concave arc sword.
4. arcs of recesses sword cutoff tool according to claim 3, is characterized in that, described concave arc diameter is 80mm-1000mm.
5. arcs of recesses sword cutoff tool according to claim 1 and 2, is characterized in that, on described arcs of recesses curve, the tangent line of each point and cutter basal plane form the left and right cutting edge inclination of 0-15 °.
6. arcs of recesses sword cutoff tool according to claim 1 and 2, is characterized in that, on described arcs of recesses curve, the tangent line of each point and cutter basal plane form the left and right cutting edge inclination of 0-5 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420820019.6U CN204338907U (en) | 2014-12-19 | 2014-12-19 | Arcs of recesses sword cutoff tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420820019.6U CN204338907U (en) | 2014-12-19 | 2014-12-19 | Arcs of recesses sword cutoff tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204338907U true CN204338907U (en) | 2015-05-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420820019.6U Expired - Fee Related CN204338907U (en) | 2014-12-19 | 2014-12-19 | Arcs of recesses sword cutoff tool |
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| Country | Link |
|---|---|
| CN (1) | CN204338907U (en) |
Cited By (4)
| 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 |
| CN106825716A (en) * | 2016-12-21 | 2017-06-13 | 中山市园丰精密刃具有限公司 | For the process tool of processing mobile phone volume key |
| CN110976930A (en) * | 2019-11-20 | 2020-04-10 | 中国航发沈阳黎明航空发动机有限责任公司 | Shock attenuation knife tip structure of car processing |
| CN111112712A (en) * | 2020-01-21 | 2020-05-08 | 上海协顺机械配件有限公司 | Cutter for precision machining |
-
2014
- 2014-12-19 CN CN201420820019.6U patent/CN204338907U/en not_active Expired - Fee Related
Cited By (4)
| 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 |
| CN106825716A (en) * | 2016-12-21 | 2017-06-13 | 中山市园丰精密刃具有限公司 | For the process tool of processing mobile phone volume key |
| CN110976930A (en) * | 2019-11-20 | 2020-04-10 | 中国航发沈阳黎明航空发动机有限责任公司 | Shock attenuation knife tip structure of car processing |
| CN111112712A (en) * | 2020-01-21 | 2020-05-08 | 上海协顺机械配件有限公司 | Cutter for precision machining |
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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 |