CN220241770U - Positioning cutting knife - Google Patents
Positioning cutting knife Download PDFInfo
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- CN220241770U CN220241770U CN202321453760.9U CN202321453760U CN220241770U CN 220241770 U CN220241770 U CN 220241770U CN 202321453760 U CN202321453760 U CN 202321453760U CN 220241770 U CN220241770 U CN 220241770U
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- 238000005520 cutting process Methods 0.000 title claims abstract description 120
- 238000009434 installation Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 5
- 238000003754 machining Methods 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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Abstract
The utility model discloses a positioning cutting knife, and relates to the technical field of woodworking knives. The positioning cutting knife is characterized in that two sections of blades are arranged on a blade mounting part extending from the top end of a knife head to a knife handle part, the two sections of blades are arranged in a crossed mode and uniformly distributed along the circumference of the blade mounting part, and the tail end of a first section of blade is overlapped with the projection part of the front end of a second section of blade on the axis of the blade mounting part; the two sections of blades are assembled by inclining to the axis of the blade mounting part, and the inclination direction of the first section of blade is opposite to that of the second section of blade. In the actual use process, the first section cutting edge generates upward cutting force to prevent burrs from being generated on the lower surface of the machined workpiece, and the second section cutting edge generates downward cutting force to prevent burrs from being generated on the upper surface of the machined workpiece. The utility model cuts the workpiece through the two sections of blades with opposite inclined directions, and simultaneously cuts the upper edge and the lower edge of the cut surface respectively, thereby avoiding burrs.
Description
Technical Field
The utility model relates to the technical field of woodworking cutters, in particular to a positioning cutting knife.
Background
At present, grooving or cutting is performed on the surface of a workpiece, and a corresponding grooving or cutting work is performed by using a blanking cutter. The existing positioning cutting tool generally adopts two or three straight blades to cut a workpiece, for example, the disclosure number is CN217192845U, the disclosure date is 2022, 8 and 16 days, the name is a slotting cutter tool holder structure, a cutter head structure and an utility model patent of a slotting cutter, and the utility model patent refers to an attached figure 1 in the specification and discloses a structure of a double-blade slotting cutter. The straight edge has only circumferential cutting force, and burrs are easily formed on the upper and lower surfaces of a machined surface of a workpiece in the machining process.
Disclosure of Invention
In order to overcome the defects and shortcomings in the prior art, the utility model provides a positioning cutting tool, and aims to solve the problem that burrs are generated on the upper surface and the lower surface of a cutting surface of the cutting tool of the conventional cutting edge of a straight tool. The positioning cutting knife is characterized in that two sections of blades are arranged on a blade mounting part extending from the top end of a knife head to a knife handle part, the two sections of blades are arranged in a crossed mode and uniformly distributed along the circumference of the blade mounting part, and the tail end of a first section of blade is overlapped with the projection part of the front end of a second section of blade on the axis of the blade mounting part; the two sections of blades are assembled by inclining to the axis of the blade mounting part, and the inclination direction of the first section of blade is opposite to that of the second section of blade. In the actual use process, the first section cutting edge generates upward cutting force to prevent burrs from being generated on the lower surface of the machined workpiece, and the second section cutting edge generates downward cutting force to prevent burrs from being generated on the upper surface of the machined workpiece. The utility model cuts the workpiece through the two sections of blades with opposite inclined directions, and simultaneously cuts the upper edge and the lower edge of the cut surface respectively, thereby avoiding burrs.
In order to solve the problems in the prior art, the utility model is realized by the following technical scheme.
The utility model provides a positioning cutting knife which comprises a knife handle and a knife head, wherein two sections of blades are arranged on a blade mounting part extending from the top end of the knife head to the knife handle part, the two sections of blades are arranged in a crossed manner and uniformly distributed along the circumference of the blade mounting part, and the tail end of a first section of blades is overlapped with the projection part of the front end of a second section of blades on the axis of the blade mounting part; the two sections of blades are assembled by inclining to the axis of the blade mounting part, and the inclining directions of the two sections of blades are opposite.
It is further preferred that the angle of inclination between the first segment blade edge and the axis of the blade mounting portion is 5 ° to 15 °.
It is further preferred that the angle of inclination between the second segment blade edge and the axis of the blade mounting portion is 5 ° to 15 °.
Further preferably, the first section of blade includes two blades, the two blades of the first section of blade are distributed at 180 °, the second section of blade includes two blades, the two blades of the second section of blade are distributed at 180 °, and the two blades of the first section of blade and the two blades of the second section of blade are uniformly distributed along the circumference of the blade mounting portion.
Further preferably, the first section of blade includes three blades, the three blades of the first section of blade are distributed at 120 °, the second section of blade includes three blades, the three blades of the second section of blade are distributed at 120 °, and the three blades of the first section of blade and the three blades of the second section of blade are uniformly distributed along the circumference of the blade mounting portion.
Further preferably, the front end portion of the first cutting edge extends beyond the front end of the cutter head.
Still more preferably, the front end surface of the cutter head is provided with slopes corresponding to the blades in the first-stage cutting edges, and the number of the slopes is consistent with the number of the blades in the first-stage cutting edges and is opposite to that of the blades in the first-stage cutting edges.
Further preferably, the blade mounting part of the cutter head is respectively provided with a first section of blade mounting groove for mounting the blade of the first section of blade and a second section of blade mounting groove for mounting the blade of the second section of blade; the opposite sides of the blade are arranged on the first section of blade mounting groove, a first section of blade chip removing groove is formed, and the opposite sides of the blade are arranged on the second section of blade mounting groove, a second section of blade draining groove is formed.
Further preferably, a positioning boss is arranged between the cutter handle and the cutter head, and the diameter of the cutter handle is smaller than that of the positioning boss.
Still more preferably, a positioning groove is formed on the junction between the handle and the positioning boss.
Compared with the prior art, the beneficial technical effects brought by the utility model are as follows:
1. compared with the existing cutting knife with the straight knife blade, the cutting knife provided by the utility model is provided with two sections of blades, the two sections of blades are assembled by being inclined to the axis of the blade mounting part, and the inclination directions of the two sections of blades are opposite. The inclination direction of the first section of cutting edge and the inclination direction of the second section of cutting edge can be set according to the rotation direction when the workpiece is processed by the blanking cutter, so that the first section of cutting edge generates upward cutting force when the workpiece is processed, and burrs are prevented from being generated on the lower surface of the processed surface; the second cutting edge generates downward cutting force when the workpiece is processed, so that burrs are avoided from being generated on the lower surface of the processed surface. The positioning and blanking cutter can effectively solve the problem that burrs are easy to generate in the existing straight cutter processing; the first section cutting edge and the second section cutting edge are arranged in a staggered mode, and chip removal of the first section cutting edge is prevented from being influenced by the second section cutting edge.
2. According to the utility model, the inclination angle of the first section of cutting edge and the inclination angle of the second section of cutting edge are limited, so that the longitudinal cutting force and the transverse cutting force of the cutting edge on a workpiece are improved, the impact force on the cutting edge is reduced, the machining efficiency and the cutting effect are improved, and the service life of the cutting tool is prolonged.
3. The positioning cutting knife can be a double-edge knife or a triple-edge knife, and the blades are uniformly distributed along the circumference, so that interference between the first-section cutting edge and the second-section cutting edge is avoided, chip removal of the first-section cutting edge is prevented from being influenced by the second-section cutting edge during processing, the eccentricity of the cutting knife is reduced, the concentricity of the cutting knife is ensured, and eccentric vibration is avoided during rotation of the cutting knife.
4. The front end of the first section of cutting edge extends out of the front end of the cutter head, the extending part plays a role of a bottom cleaning cutter, when grooving is carried out, the extending part can carry out bottom cleaning processing on the groove bottom, and meanwhile, a slope arranged on the front end face of the cutter head is convenient for discharging scraps generated by cutting of the cutting edge extending out of the front end.
5. According to the utility model, the positioning step is arranged between the cutter handle and the cutter head, so that the positioning step is convenient for positioning the mounting depth of the cutter handle, positioning and mounting during cutter replacement are convenient, the time for positioning and mounting the cutter is reduced, and the efficiency is improved.
Drawings
FIG. 1 is a schematic view of a three-dimensional structure of a positioning and blanking knife according to the present utility model;
FIG. 2 is a front view of the structure shown in FIG. 1;
FIG. 3 is a side view of FIG. 2;
FIG. 4 is a top view of FIG. 2;
reference numerals: 1. the cutter comprises a cutter handle, 2, a cutter head, 3, a first section of cutting edge, 4, a second section of cutting edge, 5, an axis of a cutting edge mounting part, 6, a blade, 7, a slope, 8, a first section of cutting edge mounting groove, 9, a second section of cutting edge mounting groove, 10, a first section of cutting edge chip groove, 11, a second section of cutting edge draining groove, 12, a positioning boss, 13 and a positioning groove.
Detailed Description
The technical scheme of the utility model is further elaborated below with reference to the specification drawings and the specific embodiments. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Example 1
As a preferred embodiment of the present utility model, the present embodiment discloses a positioning cutting tool, which comprises a tool shank 1 and a tool bit 2, wherein two sections of cutting edges are arranged on a cutting edge mounting part extending from the top end of the tool bit 2 to the tool shank 1, the two sections of cutting edges are arranged in a crossing manner and uniformly distributed along the circumference of the cutting edge mounting part, and the tail end of a first section of cutting edge 3 coincides with the projection part of the front end of a second section of cutting edge 4 on the axis 5 of the cutting edge mounting part; both cutting edges are assembled obliquely to the axis 5 of the edge mounting portion, and the oblique directions of the two cutting edges are opposite.
In this embodiment, the cutter is provided with two blades, and both blades are assembled obliquely to the axis 5 of the blade mounting portion, and the oblique directions of the blades are opposite. The inclination direction of the first section blade 3 and the inclination direction of the second section blade 4 can be set according to the rotation direction when the workpiece is processed by the blanking cutter, so that the first section blade 3 generates upward cutting force when the workpiece is processed, and burrs are prevented from being generated on the lower surface of the processed surface; the second stage blade 4 generates a downward cutting force when machining a workpiece, so as to avoid burrs on the lower surface of the machined surface. The positioning and blanking cutter can effectively solve the problem that burrs are easy to generate in the existing straight cutter processing; the first section blade 3 and the second section blade 4 are arranged in a staggered mode, and chip removal of the first section blade 3 is prevented from being influenced by the second section blade 4.
When the first section blade 3 and the second section blade 4 are provided with only one blade 6, the blades 6 of the first section blade 3 and the blades 6 of the second section blade 4 are distributed at 180 degrees, and the concentricity of the positioning cutting knife is ensured by adjusting the depths of the chip removal grooves, the mounting grooves of the blades 6 and the like, so that eccentric vibration is avoided during rotation.
Example 2
As a further preferred embodiment of the present utility model, referring to fig. 1, 2 and 4 of the specification, the present embodiment is exemplified by a double-edged blanking cutter, which includes a cutter shank 1 and a cutter head 2, two blades are provided on a blade mounting portion extending from the top end of the cutter head 2 to the cutter shank 1, the two blades are disposed to intersect, and are uniformly distributed along the circumference of the blade mounting portion, and the end of the first blade 3 coincides with the projection portion of the front end of the second blade 4 on the axis 5 of the blade mounting portion; both cutting edges are assembled obliquely to the axis 5 of the edge mounting portion, and the oblique directions of the two cutting edges are opposite. The first section of blade 3 comprises two blades 6, the two blades 6 of the first section of blade 3 are distributed at 180 degrees, the second section of blade 4 comprises two blades 6, the two blades 6 of the second section of blade 4 are distributed at 180 degrees, and the two blades 6 of the first section of blade 3 and the two blades 6 of the second section of blade 4 are uniformly distributed along the circumference of the blade mounting part.
As a preferred embodiment of the present embodiment, the inclination angle between the first-stage blade 3 and the axis 5 of the blade mounting portion is 5 ° -15 °; the angle of inclination between the second cutting edge 4 and the axis 5 of the edge mount is 5 ° -15 °. In the embodiment, the inclination angle of the first section blade 3 and the inclination angle of the second section blade 4 are limited, so that the longitudinal cutting force and the transverse cutting force of the blades on a workpiece are improved, the impact force of the blades is reduced, the machining efficiency and the cutting effect are improved, and the service life of the cutting tool is prolonged. The size of the inclination angle can be set according to the hardness of the workpiece to be processed, the rotation speed of the cutting knife and the like.
Example 3
As still another preferred embodiment of the present utility model, this embodiment is further elaborated and supplemented with the technical solution of the present utility model based on embodiment 2 described above. Referring to fig. 3 of the drawings, in the present embodiment, the front end portion of the first-stage cutting edge 3 extends beyond the front end of the cutter head 2. The front end surface of the cutter head 2 is provided with slopes 7 corresponding to the blades 6 in the first-section cutting edges 3, and the number of the slopes 7 is consistent with the number of the blades 6 in the first-section cutting edges 3 and is opposite to the number of the blades 6. The protruding part plays a role of a bottom cleaning cutter, when grooving, the protruding part can clean the bottom of the groove, and meanwhile, the slope 7 arranged on the front end face of the cutter head 2 is also convenient for discharging scraps generated by cutting of the protruding cutting edge part of the front end.
Example 4
As another preferred embodiment of the present utility model, the three-blade positioning and blanking cutter is taken as an example, and the three-blade positioning and blanking cutter comprises a cutter handle 1 and a cutter head 2, two sections of blades are arranged on a blade mounting part extending from the top end of the cutter head 2 to the cutter handle 1, the two sections of blades are arranged in a crossed manner and uniformly distributed along the circumference of the blade mounting part, and the tail end of a first section of blades 3 coincides with the projection part of the front end of a second section of blades 4 on the axis 5 of the blade mounting part; both cutting edges are assembled obliquely to the axis 5 of the edge mounting portion, and the oblique directions of the two cutting edges are opposite. The first section of blade 3 includes three blades 6, and three blades 6 of first section of blade 3 are 120 distribution, and the second section of blade 4 includes three blades 6, and three blades 6 of second section of blade 4 are 120 distribution, and three blades 6 of first section of blade 3 and three blades 6 of second section of blade 4 follow cutting edge installation department circumference evenly distributed.
It is further preferred that the angle of inclination between the first segment blade 3 and the axis 5 of the blade mount is 5 ° -15 °. The angle of inclination between the second cutting edge 4 and the axis 5 of the edge mount is 5 ° -15 °. In the embodiment, the inclination angle of the first section blade 3 and the inclination angle of the second section blade 4 are limited, so that the longitudinal cutting force and the transverse cutting force of the blades on a workpiece are improved, the impact force of the blades is reduced, the machining efficiency and the cutting effect are improved, and the service life of the cutting tool is prolonged. The size of the inclination angle can be set according to the hardness of the workpiece to be processed, the rotation speed of the cutting knife and the like.
It is further preferred that the front end portion of the first cutting edge 3 protrudes beyond the front end of the cutter head 2. The front end surface of the cutter head 2 is provided with slopes 7 corresponding to the blades 6 in the first-section cutting edges 3, and the number of the slopes 7 is consistent with the number of the blades 6 in the first-section cutting edges 3 and is opposite to the number of the blades 6.
Example 4
As a further preferred embodiment of the present utility model, this embodiment is further detailed supplement and explanation of the technical solution of the present utility model based on embodiment 1, embodiment 2 or embodiment 3 described above. As an implementation manner of this embodiment, a first-stage blade mounting groove 8 for mounting the blade 6 of the first-stage blade 3 and a second-stage blade mounting groove 9 for mounting the blade 6 of the second-stage blade 4 are respectively formed in the blade mounting portion of the tool bit 2; the first-stage blade mounting groove 8 is provided with a first-stage blade chip groove 10 on the opposite side of the blade 6, and the second-stage blade mounting groove 9 is provided with a second-stage blade drain groove 11 on the opposite side of the blade 6.
In a further preferred embodiment, a positioning boss 12 is disposed between the tool shank 1 and the tool bit 2, and the diameter of the tool shank 1 is smaller than that of the positioning boss 12. A positioning groove 13 is arranged on the junction of the knife handle 1 and the positioning boss 12. The location step is convenient for fix a position the installation degree of depth of handle of a knife 1, and the location installation when being convenient for change cutter reduces the time of cutter location installation, raises the efficiency, and the effect of constant head tank 13 is avoided handle of a knife 1 and the processing cambered surface of location boss 12 junction to influence positioning accuracy, through this constant head tank 13, sets up the connection between location boss 12 and handle of a knife 1 in the bottom of constant head tank, and the holder of centre gripping handle of a knife 1 can directly support tightly on location boss 12, improves its positioning accuracy.
Claims (10)
1. Location cutting tool, including handle of a knife (1) and tool bit (2), its characterized in that: two sections of blades are arranged on a blade mounting part extending from the top end of the blade (2) to the part of the blade holder (1), the two sections of blades are arranged in a crossed manner and uniformly distributed along the circumference of the blade mounting part, and the tail end of the first section of blades (3) is overlapped with the projection part of the front end of the second section of blades (4) on the axis (5) of the blade mounting part; the two sections of blades are assembled by inclining to the axis (5) of the blade mounting part, and the inclining directions of the two sections of blades are opposite.
2. The positioning and blanking cutter of claim 1, wherein: the inclination angle between the first section blade (3) and the axis (5) of the blade mounting part is 5-15 degrees.
3. The positioning and blanking cutter according to claim 1 or 2, characterized in that: the inclination angle between the second section blade (4) and the axis (5) of the blade mounting part is 5-15 degrees.
4. The positioning and blanking cutter according to claim 1 or 2, characterized in that: the first section cutting edge (3) comprises two blades (6), the two blades (6) of the first section cutting edge (3) are distributed at 180 degrees, the second section cutting edge (4) comprises two blades (6), the two blades (6) of the second section cutting edge (4) are distributed at 180 degrees, and the two blades (6) of the first section cutting edge (3) and the two blades (6) of the second section cutting edge (4) are uniformly distributed along the circumference of the cutting edge installation part.
5. The positioning and blanking cutter according to claim 1 or 2, characterized in that: the first section cutting edge (3) comprises three blades (6), the three blades (6) of the first section cutting edge (3) are distributed at 120 degrees, the second section cutting edge (4) comprises three blades (6), the three blades (6) of the second section cutting edge (4) are distributed at 120 degrees, and the three blades (6) of the first section cutting edge (3) and the three blades (6) of the second section cutting edge (4) are uniformly distributed along the circumference of the cutting edge installation part.
6. The positioning and blanking cutter according to claim 1 or 2, characterized in that: the front end part of the first section of blade (3) extends out of the front end of the cutter head (2).
7. The positioning and blanking cutter of claim 1, wherein: the front end face of the cutter head (2) is provided with slopes (7) corresponding to the blades (6) in the first section of cutting edge (3), and the number of the slopes (7) is consistent with the number of the blades (6) in the first section of cutting edge (3) and is arranged oppositely.
8. The positioning and blanking cutter according to claim 1 or 2, characterized in that: a first section of blade mounting groove (8) for assembling the blade (6) of the first section of blade (3) and a second section of blade mounting groove (9) for assembling the blade (6) of the second section of blade (4) are respectively formed in the blade mounting part of the blade (2); the opposite sides of the blade (6) are arranged on the first section of blade mounting groove (8), a first section of blade chip removing groove (10) is formed, the opposite sides of the blade (6) are arranged on the second section of blade mounting groove (9), and a second section of blade draining groove (11) is formed.
9. The positioning and blanking cutter according to claim 1 or 2, characterized in that: a positioning boss (12) is arranged between the cutter handle (1) and the cutter head (2), and the diameter of the cutter handle (1) is smaller than that of the positioning boss (12).
10. The positioning and blanking cutter of claim 9, wherein: a positioning groove (13) is arranged at the joint of the knife handle (1) and the positioning boss (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321453760.9U CN220241770U (en) | 2023-06-08 | 2023-06-08 | Positioning cutting knife |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321453760.9U CN220241770U (en) | 2023-06-08 | 2023-06-08 | Positioning cutting knife |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220241770U true CN220241770U (en) | 2023-12-26 |
Family
ID=89233029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321453760.9U Active CN220241770U (en) | 2023-06-08 | 2023-06-08 | Positioning cutting knife |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220241770U (en) |
-
2023
- 2023-06-08 CN CN202321453760.9U patent/CN220241770U/en active Active
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