CN210910297U - Drilling shaping sword of processing plastic - Google Patents
Drilling shaping sword of processing plastic Download PDFInfo
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- CN210910297U CN210910297U CN201920947883.5U CN201920947883U CN210910297U CN 210910297 U CN210910297 U CN 210910297U CN 201920947883 U CN201920947883 U CN 201920947883U CN 210910297 U CN210910297 U CN 210910297U
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Abstract
The utility model discloses a drilling forming cutter for processing plastic cement, which comprises a cutter handle; the cutter head is integrally and coaxially fixed with one side shaft end of the cutter handle, a plurality of spirally arranged spiral blades are arranged on the cutter head, and the end teeth are arranged at the side shaft end of the cutter head, which is far away from the cutter handle; the end teeth comprise main drill bits and auxiliary drill bits, the main drill bits are positioned on the self axis of the cutter head, the auxiliary drill bits are positioned on two sides of the main drill bits, the number of the auxiliary drill bits is equal to the number of the spiral blades, the auxiliary drill bits are intersected with the spiral blades, and the intersection points of the auxiliary drill bits and the spiral blades are points, which are most far away from the cutter handle, on the auxiliary drill bits; the self angle at the top end of the main drill bit is a main drill point angle which is 80 degrees, the included angle between the inclined planes of the two auxiliary drill bits which are symmetrically arranged along the main drill bit is an auxiliary drill point angle, and the auxiliary drill point angle is 100 degrees. Adopt this utility model discloses can once only accomplish the drilling in small-size hole, avoid the process of follow-up manual burring, the tool bit is difficult for disconnected sword yet.
Description
Technical Field
The utility model relates to a cutter field, concretely relates to drilling shaping sword of processing plastic.
Background
The prior art easily produces the burr when processing the earphone hole, also easily cuts the sword simultaneously, and the size in earphone hole is minimum, and it is high to the surface smoothness degree requirement, often still needs manual burring to production efficiency is low. Therefore, a new type of efficient drill forming tool for processing plastic needs to be developed.
SUMMERY OF THE UTILITY MODEL
The to-be-solved problem of the utility model is to provide a, can once only accomplish the drilling in small-size hole, avoid the process of follow-up manual burring, the tool bit is also difficult for disconnected sword.
In order to solve the above problem, the utility model provides a, in order to reach above-mentioned purpose, the utility model provides a technical scheme that its technical problem adopted is:
a drilling forming cutter for processing plastic comprises: a knife handle; the cutter head is integrally and coaxially fixed with one side shaft end of the cutter handle, a plurality of spirally arranged spiral blades are arranged on the cutter head, and the end teeth are arranged at the side shaft end of the cutter head, which is far away from the cutter handle; the end teeth comprise main drill bits and auxiliary drill bits, the main drill bits are positioned on the self axis of the cutter head, the auxiliary drill bits are positioned on two sides of the main drill bits, the number of the auxiliary drill bits is equal to the number of the spiral blades, the auxiliary drill bits are intersected with the spiral blades, and the intersection points of the auxiliary drill bits and the spiral blades are points, which are most far away from the cutter handle, on the auxiliary drill bits; the self angle at the top end of the main drill bit is a main drill point angle which is 80 degrees, the included angle between the inclined planes of the two auxiliary drill bits which are symmetrically arranged along the main drill bit is an auxiliary drill point angle, and the auxiliary drill point angle is 100 degrees.
The beneficial effect of adopting above-mentioned technical scheme is: after plastic processing, the microscope is amplified by 200 times, the visual burr-free effect can be achieved, and the processing method is suitable for processing the small holes in the Sony earphones. The subsequent manual deburring process is avoided, and the cutter head is not easy to break. By using the drilling forming cutter, the effect can be achieved by one-time processing, the production efficiency is greatly improved, and a large amount of cost is saved. The key of the difficult cutter breaking lies in that the main drill plays a centering role on the cutting edge of the auxiliary drill, and the supporting of the inclined plane cutting edge of the auxiliary drill makes the whole cutting force more stable, and the cutter is not easy to back off in the drilling process, thereby reducing the cutting resistance and preventing the cutter breaking. The bright spots with few drilling burrs of the forming cutter are also positioned on the cutting edge of the auxiliary drill bit, and the phenomenon of the burrs of the drilling of the common drill bit is caused by the fact that the outer side of a drill point is an obtuse angle and the drilling of the drill bit is close to extrusion, so that the burrs exist. And the apex angle of vice drill bit is located the position of keeping away from tool bit self axis relatively furthest, greatly increased vice drill bit's sharpness, reduced the cutting resistance, reached the effect of fly-cutting, rather than the extrusion, so can bring the advantage that the burr is few.
As the utility model discloses a further improvement, main drill bit is high for main drill bit along axial protrusion height, and main drill bit is high for 0.18mm to 0.22mm, and main drill bit is high for vice drill bit along axial protrusion height, and vice drill bit is high for 0.10mm to 0.12 mm.
The beneficial effect of adopting above-mentioned technical scheme is: the height selection of the main drill bit and the auxiliary drill bit further improves the processing effect, the main drill bit is relatively more prominent, and the centering effect can be achieved.
As a further improvement of the utility model, the number of the auxiliary drill bits is two.
The beneficial effect of adopting above-mentioned technical scheme is: the spiral blades are relatively few, the thickness of each spiral blade is guaranteed, and the structural strength of the spiral blade is guaranteed, so that the cutter is not easy to break.
As a further improvement of the utility model, the spiral angle of the spiral blade is 29 degrees to 31 degrees, and the spiral blade has a length of 3mm along the axial direction of the cutter head.
The beneficial effect of adopting above-mentioned technical scheme is: the cutting chip removal effect is good.
As the utility model discloses a further improvement again, the spiral sword possesses first cutting relief angle, second cutting relief angle in proper order along the direction that deviates from self cutting edge, and first cutting relief angle scope is 17 to 19, and the second cutting relief angle of spiral sword is 35, and the first cutting edge width of spiral sword is 0.03mm to 0.05mm, and the second cutting edge width is 0.4 mm.
The beneficial effect of adopting above-mentioned technical scheme is: the selection of the size and the angle further improves the cutting and chip removal effect.
As a further improvement of the utility model, the junction of the main drill bit and the auxiliary drill bit is transited through an inner fillet.
The beneficial effect of adopting above-mentioned technical scheme is: the stress concentration is eliminated, and the fracture from the junction of the main drill bit and the auxiliary drill bit is prevented.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a front view of an embodiment of the present invention;
FIG. 2 is an axial view of a cutter head according to an embodiment of the present invention;
FIG. 3 is a partial cross-sectional view of an embodiment of the present invention;
FIG. 4 is a perspective view of an embodiment of the present invention;
fig. 5 is a partial enlarged view of a portion a according to an embodiment of the present invention.
1-a knife handle; 2-a cutter head; 3-a main drill bit; 4-a secondary drill bit; l1-overall cutter length; l2-total blade length; d1-diameter of the tool shank; d2-diameter of cutting head; a1-helix angle; a2 — first cutting relief angle; a3 — secondary cutting relief angle; a5-main point angle; a6-point angle of assistant; h1 — first cutting edge width; h2 — second cutting edge width; h3-cutter back width; h4 — main bit height; h5-sub bit high.
Detailed Description
The following detailed description is made in conjunction with specific embodiments of the present invention:
in order to achieve the purpose of the utility model, a drilling shaping sword of processing plastic, include: a knife handle 1; the cutter head 2 is integrally and coaxially fixed with one side shaft end of the cutter handle 2, the cutter head 2 is provided with a plurality of spiral blades which are spirally arranged, and the cutter head 2 is provided with end teeth at one side shaft end which is far away from the cutter handle 1; the end teeth comprise main drill bits 3 and auxiliary drill bits 4, the main drill bits 3 are located on the axis of the cutter head 2, the auxiliary drill bits 4 are located on two sides of the main drill bits 3, the number of the auxiliary drill bits 4 is equal to the number of the spiral blades, the auxiliary drill bits 4 are intersected with the spiral blades, and the intersection points of the auxiliary drill bits 4 and the spiral blades are the points, which are most far away from the cutter handle 1, on the auxiliary drill bits 4; the self angle at the top end of the main drill 3 is a main point angle A5, the main point angle A5 is 80 degrees, the included angle between the inclined surfaces of two auxiliary drill 4 symmetrically arranged along the main drill 3 is an auxiliary point angle A6, and the auxiliary point angle A6 is 100 degrees.
As shown in fig. 1, the total cutter length L1 and the total blade length L2 are provided, the holder 1 has a holder diameter D1, and the cutting head 2 has a cutting head diameter D2.
The beneficial effect of adopting above-mentioned technical scheme is: after plastic processing, the microscope is amplified by 200 times, the visual burr-free effect can be achieved, and the processing method is suitable for processing the small holes in the Sony earphones. The subsequent manual deburring process is avoided, and the cutter head is not easy to break. By using the drilling forming cutter, the effect can be achieved by one-time processing, the production efficiency is greatly improved, and a large amount of cost is saved. The key of the difficult cutter breaking lies in that the main drill plays a centering role on the cutting edge of the auxiliary drill, and the supporting of the inclined plane cutting edge of the auxiliary drill makes the whole cutting force more stable, and the cutter is not easy to back off in the drilling process, thereby reducing the cutting resistance and preventing the cutter breaking. The bright spots with few drilling burrs of the forming cutter are also positioned on the cutting edge of the auxiliary drill bit, and the phenomenon of the burrs of the drilling of the common drill bit is caused by the fact that the outer side of a drill point is an obtuse angle and the drilling of the drill bit is close to extrusion, so that the burrs exist. And the apex angle of vice drill bit is located the position of keeping away from tool bit self axis relatively furthest, greatly increased vice drill bit's sharpness, reduced the cutting resistance, reached the effect of fly-cutting, rather than the extrusion, so can bring the advantage that the burr is few.
In other embodiments of the present invention, the main bit 3 is the main bit height H4 along the axial protrusion height, the main bit H4 is 0.18mm to 0.22mm, the auxiliary bit 4 is the auxiliary bit height H5 along the axial protrusion height, and the auxiliary bit height H5 is 0.10mm to 0.12 mm.
As shown in fig. 2, the cutter back width H3 is 0.38 mm.
The beneficial effect of adopting above-mentioned technical scheme is: the height selection of the main drill bit and the auxiliary drill bit further improves the processing effect, the main drill bit is relatively more prominent, and the centering effect can be achieved.
In other embodiments of the present invention, the number of the sub-drills 4 is two.
The beneficial effect of adopting above-mentioned technical scheme is: the spiral blades are relatively few, the thickness of each spiral blade is guaranteed, and the structural strength of the spiral blade is guaranteed, so that the cutter is not easy to break.
In other embodiments of the present invention, the angle of the helix angle a1 of the helical edge is 29 ° to 31 °, and the length of the helical edge in the axial direction of the cutter head 2 is 3 mm.
The beneficial effect of adopting above-mentioned technical scheme is: the cutting chip removal effect is good.
In other embodiments of the present invention, as shown in fig. 2, the spiral blade has first cutting relief angle a2 and second cutting relief angle A3 in the direction away from the blade, the range of the first cutting relief angle a2 is 17 ° to 19 °, the second cutting relief angle A3 of the spiral blade is 35 °, the first cutting edge width H1 of the spiral blade is 0.03mm to 0.05mm, and the second cutting edge width H2 is 0.4 mm.
The beneficial effect of adopting above-mentioned technical scheme is: the selection of the size and the angle further improves the cutting and chip removal effect.
In other embodiments of the present invention, the junction of the main drill bit 3 and the sub drill bit 4 is transited by an inner fillet.
The beneficial effect of adopting above-mentioned technical scheme is: the stress concentration is eliminated, and the fracture from the junction of the main drill bit and the auxiliary drill bit is prevented.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and the protection scope of the present invention can not be limited thereby, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (6)
1. The utility model provides a drilling shaping sword of processing plastic which characterized in that includes:
a knife handle;
the cutter head is integrally and coaxially fixed with one side shaft end of the cutter handle, a plurality of spiral blades are spirally arranged on the cutter head, and the end teeth are arranged at the side shaft end of the cutter head, which is far away from the cutter handle;
the end teeth comprise main drill bits and auxiliary drill bits, the main drill bits are located on the axis of the cutter head, the auxiliary drill bits are located on two sides of the main drill bits, the number of the auxiliary drill bits is equal to the number of the spiral blades, the auxiliary drill bits are intersected with the spiral blades, and the intersection points of the auxiliary drill bits and the spiral blades are points, which are most far away from the cutter handle, on the auxiliary drill bits; the self angle of the top end of the main drill bit is a main drill point angle, the main drill point angle is 80 degrees, an included angle between inclined planes of two auxiliary drill bits symmetrically arranged along the main drill bit is an auxiliary drill point angle, and the auxiliary drill point angle is 100 degrees.
2. The drilling and forming tool for processing plastics of claim 1, wherein: the main drill bit is high along axial protrusion height for the main drill bit, the main drill bit height is 0.18mm to 0.22mm, vice drill bit is high along axial protrusion height for the vice drill bit, vice drill bit height is 0.10mm to 0.12 mm.
3. The drill forming tool for processing plastics of claim 2, wherein: the number of the secondary drill bits is two.
4. The drill forming tool for processing plastics of claim 3, wherein: the spiral angle of the spiral blade is 29-31 degrees, and the length of the spiral blade along the axial direction of the cutter head is 3 mm.
5. The drilling and forming tool for processing plastics of claim 4, wherein: the spiral blade is provided with a first cutting relief angle and a second cutting relief angle in sequence in a direction departing from the blade, the first cutting relief angle ranges from 17 degrees to 19 degrees, the second cutting relief angle of the spiral blade is 35 degrees, the first cutting edge width of the spiral blade is 0.03mm to 0.05mm, and the second cutting edge width of the spiral blade is 0.4 mm.
6. The drilling and forming tool for processing plastics of claim 1, wherein: the junction of the main drill bit and the auxiliary drill bit is transited through an inner fillet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920947883.5U CN210910297U (en) | 2019-06-21 | 2019-06-21 | Drilling shaping sword of processing plastic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920947883.5U CN210910297U (en) | 2019-06-21 | 2019-06-21 | Drilling shaping sword of processing plastic |
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| Publication Number | Publication Date |
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| CN210910297U true CN210910297U (en) | 2020-07-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920947883.5U Active CN210910297U (en) | 2019-06-21 | 2019-06-21 | Drilling shaping sword of processing plastic |
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| CN (1) | CN210910297U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114382072A (en) * | 2022-01-26 | 2022-04-22 | 江西省水利科学院 | High-pressure jet drill bit, high-pressure jet drilling machine, diaphragm wall construction method and diaphragm wall |
-
2019
- 2019-06-21 CN CN201920947883.5U patent/CN210910297U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114382072A (en) * | 2022-01-26 | 2022-04-22 | 江西省水利科学院 | High-pressure jet drill bit, high-pressure jet drilling machine, diaphragm wall construction method and diaphragm wall |
| CN114382072B (en) * | 2022-01-26 | 2023-08-18 | 江西省水利科学院 | High-spraying drill bit, high-spraying drilling machine, impervious wall construction method and impervious wall |
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