CN213944935U - Cutting-off tool and cutting-off assembly - Google Patents
Cutting-off tool and cutting-off assembly Download PDFInfo
- Publication number
- CN213944935U CN213944935U CN202022878434.5U CN202022878434U CN213944935U CN 213944935 U CN213944935 U CN 213944935U CN 202022878434 U CN202022878434 U CN 202022878434U CN 213944935 U CN213944935 U CN 213944935U
- Authority
- CN
- China
- Prior art keywords
- cutting edge
- face
- tool
- cutting
- cutter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model relates to a cutter field specifically discloses a cut-off cutter and cut off subassembly. The cutting-off tool comprises a tool body, wherein the front end of the tool body is a rear tool face, the upper end of the tool body is a front tool face, and the front tool face and the rear tool face are intersected to form a main cutting blade; the front knife face is provided with an arc-shaped groove, the arc-shaped groove extends along the front-back direction and divides the front knife face into a first area and a second area; the first area is intersected with the rear cutter face to form a first cutting edge, the second area is intersected with the rear cutter face to form a second cutting edge, and the arc groove is intersected with the rear cutter face to form a third cutting edge; the rear cutter face is gradually inclined backwards from top to bottom and is simultaneously gradually inclined backwards along the direction from the first cutting edge to the second cutting edge. The cutting-off tool improves the chip removal efficiency in a chip breaking and guide combination mode, and further improves the cutting quality.
Description
Technical Field
The utility model relates to a cutter field, concretely relates to cutting off cutter and cut off subassembly.
Background
The cutting-off tool and the cutting tool for cutting the bar stock or the workpiece into two sections have the advantages that the cutting-off tool mainly feeds risk gold during cutting, the width of the cutting-off tool is generally narrow in order to reduce cutting chips, chip removal is difficult in the cutting process, the cutting surface is easily abraded due to cutting accumulation, burrs, scratches and other defects are formed, and troubles are caused for subsequent processing.
Disclosure of Invention
The to-be-solved technical problem of the utility model is to provide a cutting off cutter and cut off subassembly to the mode that chip breaking and guide combine improves chip removal efficiency, and then improves cutting quality.
In order to solve the technical problem, the utility model provides a technical scheme as follows: a cutting-off tool comprises a tool body, wherein the front end of the tool body is a rear tool face, the upper end of the tool body is a front tool face, and the front tool face and the rear tool face are intersected to form a main cutting edge; the front knife face is provided with an arc-shaped groove, the arc-shaped groove extends along the front-back direction and divides the front knife face into a first area and a second area; the first area is intersected with the rear cutter face to form a first cutting edge, the second area is intersected with the rear cutter face to form a second cutting edge, and the arc-shaped groove is intersected with the rear cutter face to form a third cutting edge; the rear cutter face is gradually inclined backwards from top to bottom and is simultaneously gradually inclined backwards along the direction from the first cutting edge to the second cutting edge.
During cutting, firstly, one end of the first cutting edge, which is far away from the third cutting edge, is contacted with a workpiece, and chips are generated; as the cutting is advanced, the first cutting edge participating in cutting gradually increases, and the chip gradually widens until the first cutting edge participates in cutting completely.
At this time, the cutting is continued, and the third cutting edge starts to participate in the cutting, but due to the different shapes and the different trends of the first cutting edge and the second cutting edge, the chips generated by the first cutting edge and the second cutting edge are broken in the width direction.
In the process that the third cutting edge gradually participates in cutting, the tip of the second cutting edge connected with the third cutting edge starts to participate in cutting, and chips generated by the second cutting edge and the third cutting edge are also broken in the width direction due to the fact that the third cutting edge does not completely participate in cutting at the moment and the second cutting edge and the third cutting edge are different in direction and shape.
To sum up, the smear metal that first cutting edge, second cutting edge and third cutting edge produced breaks off in the width respectively, and the width size of smear metal reduces, is favorable to the smooth discharge of smear metal, and the setting of arc wall plays the guide effect to the discharge of smear metal simultaneously, improves chip removal efficiency, reduces the smear metal and piles up the surface defect who causes, improves product quality.
Preferably, the arc-shaped groove penetrates through the whole cutter body along the front-back direction, the rear cutter face can be polished after the first cutting edge, the second cutting edge and the third cutting edge are worn, the trend of the first cutting edge, the trend of the second cutting edge and the trend of the third cutting edge can be guaranteed only by basically stabilizing the inclination angle of the rear cutter face, and the cutting performance is guaranteed.
Preferably, the included angle between the rear cutter face and the height direction is 10-15 degrees.
Preferably, the included angle between the main cutting edge and the front and back direction of the cutter body is 5-10 degrees.
A severing assembly comprising a handle and a severing knife as described above; the knife handle is provided with a mounting groove matched with the knife body, and the mounting groove is opened at the front end of the knife handle; the knife handle is also provided with a deformation groove, and the deformation groove penetrates through the whole knife handle along the width direction and extends to the front end of the knife handle along the length direction; the deformation groove is communicated with the mounting groove; the deformation groove divides the tool shank into a first clamping part and a second clamping part; the clamping device is used for driving the first clamping part and the second clamping part to approach each other.
During clamping, the rear end of the cutter body is inserted into the mounting groove from the front end of the cutter handle, the length of the cutter body extending out of the mounting groove is adjusted, and the first clamping part and the second clamping part are driven by the clamping device to clamp the cutter body.
Preferably, the lower end surface of the cutter body is a main positioning surface, the left side surface or the right side surface of the cutter body is an auxiliary positioning surface, and the main positioning surface is obliquely arranged along the left-right direction relative to the front cutter surface; the mounting groove is arranged on the left side or the right side of the cutter handle and is opened at the corresponding side surface; the bottom surface of the mounting groove is a positioning base surface corresponding to main positioning, and the positioning base surface is inwards and gradually inclined downwards from the opening side.
Drawings
FIG. 1 is a schematic structural diagram of a cutting blade of the cutting assembly of the present embodiment;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is an elevation view of a severing knife of the severing assembly of this embodiment;
FIG. 4 is a partial top view of a severing knife of the severing assembly of this embodiment;
FIG. 5 is a partial side view of a severing knife of the severing assembly of this embodiment;
FIG. 6 is a view showing a state of use of the cutting unit according to the present embodiment;
FIG. 7 is a front view of the severing assembly of this embodiment;
FIG. 8 is an enlarged view of a portion of FIG. 7 at B;
FIG. 9 is a schematic view of the structure of the tool shank of the severing assembly of this embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "inner", "outer", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Examples
As shown in fig. 6, the cutting assembly comprises a tool shank 2 and a cutting tool, as shown in fig. 1-5, the cutting tool comprises a tool body 1, the front end of the tool body 1 is a flank 12, the upper end is a rake 11, and the rake 11 and the flank 12 intersect to form a main cutting edge. The rake face 11 is provided with an arc-shaped groove 13, and the arc-shaped groove 13 extends in the front-back direction and divides the rake face 11 into a first area 111 and a second area 112. The first region 111 intersects the flank surface 12 to form a first cutting edge 142, the second region 112 intersects the flank surface 12 to form a second cutting edge 141, and the arcuate slot intersects the flank surface 12 to form a third cutting edge 15.
As shown in fig. 4 and 5, the flank surface 12 is inclined gradually rearward from top to bottom, and is inclined gradually rearward in a direction from the first cutting edge 142 to the second cutting edge 141. The included angle between the rear cutter face 12 and the height direction is 10-15 degrees, as shown by alpha in fig. 5, and the included angle between the main cutting edge 14 and the front and back direction of the cutter body 1 is 5-10 degrees, as shown by beta in fig. 4.
During cutting, firstly, one end of the first cutting edge 142, which is far away from the third cutting edge 15, is in contact with the workpiece 3, and chips are generated; as the cutting advances, the first cutting edge 142 that participates in cutting gradually increases, and the chip also gradually widens until the first cutting edge 142 participates in cutting completely.
At this time, the cutting is continued, and the third cutting edge 15 starts to participate in the cutting, but the chips generated by the first cutting edge 142 and the second cutting edge 141 are broken in the width direction due to the difference in the orientation and shape of the first cutting edge 142 and the second cutting edge 141.
In the process that the third cutting edge 15 gradually participates in the cutting, the tip of the second cutting edge 141 connected with the third cutting edge 15 starts to participate in the cutting, and since the third cutting edge 15 does not participate in the cutting completely at this time, and the trend and the shape of the second cutting edge 141 are different from those of the third cutting edge 15, the chips generated by the second cutting edge 141 and the third cutting edge 15 are also broken in the width direction.
In conclusion, the chips generated by the first cutting edge 142, the second cutting edge 141 and the third cutting edge 15 are respectively cut off in width, the width of the chips is reduced, smooth discharge of the chips is facilitated, meanwhile, the arrangement of the arc-shaped groove 13 plays a role in guiding the discharge of the chips, the chip discharge efficiency is improved, the surface defect caused by chip accumulation is reduced, and the product quality is improved.
As shown in fig. 2, the arc-shaped groove 13 penetrates the entire cutter body 1 in the front-rear direction, and after the first cutting edge 142, the second cutting edge 141, and the third cutting edge 15 are worn, the flank 12 can be ground, and the inclination angle of the flank 12 is basically stable, so that the trends of the first cutting edge 142, the second cutting edge 141, and the third cutting edge 15 can be ensured, and the cutting performance can be ensured.
As shown in fig. 7-9, an installation groove 22 matched with the cutter body 1 is formed in the cutter handle 2, and the installation groove 22 is opened at the front end of the cutter handle 2; the knife handle 2 is also provided with a deformation groove 23, and the deformation groove 23 penetrates through the whole knife handle 2 along the width direction and extends to the front end of the knife handle 2 along the length direction; the deformation groove 23 is communicated with the mounting groove 22; the deformation groove 23 divides the tool holder 2 into a first clamping part 24 and a second clamping part 25; and a clamping device 21 for driving the first clamping portion 24 and the second clamping portion 25 to approach each other, wherein the clamping device 21 may be a screw passing through the first clamping portion 24 and the second clamping portion 25 in sequence.
During clamping, the rear end of the cutter body 1 is inserted into the mounting groove 22 from the front end of the cutter handle 2, the length of the cutter body 1 extending out of the mounting groove 22 is adjusted, and the clamping device 21 drives the first clamping part 24 and the second clamping part 25 to clamp the cutter body 1.
As shown in fig. 3, the lower end surface of the cutter body 1 is a main positioning surface 16, the left side surface or the right side surface is an auxiliary positioning surface 17, and the main positioning surface 16 is inclined in the left-right direction with respect to the rake surface 11. As shown in fig. 7 and 8, the mounting groove 22 is provided on the left or right side of the holder 2 and is open at the corresponding side. The bottom surface of the mounting groove 22 is a positioning base surface 221 corresponding to main positioning, and the positioning base surface 221 is gradually inclined downwards from the opening side.
In summary, the above description is only a preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention should be included within the scope of the present invention.
Claims (6)
1. A cutting-off tool comprises a tool body, wherein the front end of the tool body is a rear tool face, the upper end of the tool body is a front tool face, and the front tool face and the rear tool face are intersected to form a main cutting edge;
the method is characterized in that: the front knife face is provided with an arc-shaped groove, the arc-shaped groove extends along the front-back direction and divides the front knife face into a first area and a second area; the first area is intersected with the rear cutter face to form a first cutting edge, the second area is intersected with the rear cutter face to form a second cutting edge, and the arc-shaped groove is intersected with the rear cutter face to form a third cutting edge;
the rear cutter face is gradually inclined backwards from top to bottom and is simultaneously gradually inclined backwards along the direction from the first cutting edge to the second cutting edge.
2. The cutoff knife of claim 1, wherein: the arc-shaped groove penetrates through the whole cutter body along the front-back direction.
3. The cutoff knife of claim 1, wherein: the included angle between the rear cutter face and the height direction is 10-15 degrees.
4. The cutoff knife of claim 1, wherein: the included angle between the main cutting edge and the front and back direction of the cutter body is 5-10 degrees.
5. A severing assembly, characterized by: comprising a shank and a cutting knife according to any one of claims 1-4;
the knife handle is provided with a mounting groove matched with the knife body, and the mounting groove is opened at the front end of the knife handle; the knife handle is also provided with a deformation groove, and the deformation groove penetrates through the whole knife handle along the width direction and extends to the front end of the knife handle along the length direction; the deformation groove is communicated with the mounting groove;
the deformation groove divides the tool shank into a first clamping part and a second clamping part; the clamping device is used for driving the first clamping part and the second clamping part to approach each other.
6. The severing assembly according to claim 5, characterized in that: the lower end surface of the cutter body is a main positioning surface, the left side surface or the right side surface of the cutter body is an auxiliary positioning surface, and the main positioning surface is obliquely arranged along the left-right direction relative to the front cutter surface;
the mounting groove is arranged on the left side or the right side of the cutter handle and is opened at the corresponding side surface; the bottom surface of the mounting groove is a positioning base surface corresponding to main positioning, and the positioning base surface is inwards and gradually inclined downwards from the opening side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022878434.5U CN213944935U (en) | 2020-12-04 | 2020-12-04 | Cutting-off tool and cutting-off assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022878434.5U CN213944935U (en) | 2020-12-04 | 2020-12-04 | Cutting-off tool and cutting-off assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213944935U true CN213944935U (en) | 2021-08-13 |
Family
ID=77214963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022878434.5U Active CN213944935U (en) | 2020-12-04 | 2020-12-04 | Cutting-off tool and cutting-off assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213944935U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114260513A (en) * | 2022-01-25 | 2022-04-01 | 深圳市誉和光学精密刀具有限公司 | Cutter preparation method and cutter |
| CN115351305A (en) * | 2022-08-24 | 2022-11-18 | 西安万威机械制造股份有限公司 | Numerical control machining method for air film groove of thin-walled part |
| CN115351306A (en) * | 2022-08-24 | 2022-11-18 | 西安万威机械制造股份有限公司 | Method for designing chip groove on front tool face of cutter for machining air film groove and cutter |
-
2020
- 2020-12-04 CN CN202022878434.5U patent/CN213944935U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114260513A (en) * | 2022-01-25 | 2022-04-01 | 深圳市誉和光学精密刀具有限公司 | Cutter preparation method and cutter |
| CN114260513B (en) * | 2022-01-25 | 2022-11-22 | 深圳市誉和光学精密刀具有限公司 | Cutter preparation method and cutter |
| CN115351305A (en) * | 2022-08-24 | 2022-11-18 | 西安万威机械制造股份有限公司 | Numerical control machining method for air film groove of thin-walled part |
| CN115351306A (en) * | 2022-08-24 | 2022-11-18 | 西安万威机械制造股份有限公司 | Method for designing chip groove on front tool face of cutter for machining air film groove and cutter |
| CN115351305B (en) * | 2022-08-24 | 2024-01-12 | 西安万威机械制造股份有限公司 | Numerical control machining method for thin-wall part air film groove |
| CN115351306B (en) * | 2022-08-24 | 2024-01-30 | 西安万威机械制造股份有限公司 | Design method of cutter front cutter surface chip rolling groove for machining air film groove and cutter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN213944935U (en) | Cutting-off tool and cutting-off assembly | |
| JP2001212704A (en) | Throw-away tip | |
| JP2595079B2 (en) | Insert for cutting of cutting tools | |
| US3654681A (en) | Cutoff tool having improved chip relieving surface | |
| JP2502610Y2 (en) | Slot-away tip | |
| CN209935879U (en) | High-speed cutting-off tool | |
| CN218460881U (en) | Small hole boring cutter with end face blade | |
| CN215657911U (en) | Cutting-off blade with good cutting effect | |
| JP2011005618A (en) | Inside diameter working tool | |
| CN111448021B (en) | High-speed feed cutting blade for narrow-width cutting operations | |
| CN111745200B (en) | Milling cutter head and ball end mill | |
| JP4774952B2 (en) | Throw-away turning tool | |
| CN216065588U (en) | Diamond polishing knife with chip blocking function | |
| CN219522194U (en) | Angle cleaning cutter for processing nonmetallic materials | |
| JP4854360B2 (en) | Cutting insert and cutting tool equipped with the same | |
| JPH09183002A (en) | Internally lubricated cutting tool | |
| CN218775756U (en) | Finish milling cutter convenient to installation | |
| CN216177304U (en) | Cross hole deburring knife | |
| CN218460882U (en) | Small hole finishing boring cutter | |
| CN213794276U (en) | Chip breaker | |
| CN216828833U (en) | Tungsten steel double-end milling cutter | |
| CN218775755U (en) | Finish milling cutter convenient to chip removal | |
| CN217617985U (en) | Special milling cutter of plastic of twolip height tooth structure | |
| CN212443290U (en) | Chamfering tool | |
| JPS63212401A (en) | Turning method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |