CN222999714U - Single-edge spiral drill bit - Google Patents
Single-edge spiral drill bit Download PDFInfo
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- CN222999714U CN222999714U CN202422203032.3U CN202422203032U CN222999714U CN 222999714 U CN222999714 U CN 222999714U CN 202422203032 U CN202422203032 U CN 202422203032U CN 222999714 U CN222999714 U CN 222999714U
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Abstract
The utility model relates to a single-blade spiral drill bit which comprises a connecting part, wherein a rigid body is arranged at the front end of the connecting part, a single-blade cutter head part is arranged at the front end of the rigid body, a drilling part is arranged at the center of the front end of the single-blade cutter head part, a tip part is arranged at the front end of the drilling part, an arc-shaped chip groove is arranged at the rear end of the tip part, the rear end of the arc-shaped chip groove is connected with an spiral drilling groove, the spiral drilling groove is stepped, the diameter of the rear end of the drilling part is larger than that of the front end, the whole cutter is convenient to assemble and disassemble through the arranged connecting part, the rigid body is arranged to ensure the cutter to have strong rigidity, the cutter head and the body are reasonably designed to conveniently drill holes, the position of the cutter is ensured to be accurate through the arrangement of the tip part, and the hole drilling efficiency is high.
Description
Technical Field
The utility model relates to the technical field of single-blade drills, in particular to a single-blade spiral drill.
Background
The milling cutter is mainly used for machining planes, steps, grooves, forming surfaces, cutting workpieces and the like on a milling machine, the drill is mainly used for drilling, although the milling cutter can also be used for drilling in certain cases, the milling cutter is not the main purpose, the excircle of the milling cutter is provided with two cutting edges with relief angles and can play a role in cutting, the drill is longer, the two cutting edges of the excircle are not provided with relief angles, only for reducing friction, the two cutting edges are not intersected, the drill is a linear cutting tool, and the structure of the drill mainly comprises a cutter point, a cutter edge part, a cutter edge angle, a main shaft and the like.
Patent number CN201920024263.4 discloses a single-blade spiral milling cutter, it passes through handle of a knife and tool bit, handle of a knife and tool bit pass through the recess cutting ferrule and are connected with the mode of protruding dop block, the tool bit includes the helicla flute and the helicla blade that forms by the helicla flute, the helicla flute is convex groove face, its helix angle is 45, the helicla flute degree of depth is 50% of sword footpath, be provided with vice chip groove on the helicla blade, milling cutter has the chip removal unobstructed, use cost is low, handle of a knife reuse's advantage, but this single-blade spiral milling cutter has the following problems that firstly, it is difficult to trompil, secondly, rear end connecting portion connection firmness is poor, the structural rigidity is poor, wear easily, life is short.
Disclosure of utility model
The utility model aims at overcoming the defects of the prior art, the whole cutter is convenient to assemble and disassemble through the arranged connecting part, the rigidity of the cutter is ensured by arranging the rigid body, the cutter head and the cutter body are reasonably designed, the hole is conveniently opened, and the technical problems that the cutter is difficult to open, the point position of the hole is difficult to fix, the abrasion is easy, and the service life is short in the prior art are solved by arranging the tip part.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
The single-blade spiral drill bit comprises a connecting part, wherein a rigid body is arranged at the front end of the connecting part, a single-blade cutter head part is arranged at the front end of the rigid body, and a drilling part is arranged at the center of the front end of the single-blade cutter head part;
The drilling part, drilling part front end is equipped with the tip, tip rear end is equipped with arc junk slot, spiral drilling groove is connected to arc junk slot rear end, spiral drilling groove is the ladder type, just drilling part rear end diameter is greater than the front end diameter.
Preferably, the connecting part comprises an end handle, a limiting groove is formed in the front end of the end handle, an installation body is arranged at the front end of the limiting groove, a protruding arc is arranged at the front end of the installation body, and the diameter of the installation body is smaller than that of the rigid body structure.
Preferably, the front end of the rigid body is fixedly connected with a bearing part, the bearing part is of a trapezoid table structure, the diameter of the front end of the bearing part is larger than that of the rear end of the bearing part, and the diameter of the front end of the bearing part is the same as that of the single-edge tool bit part.
Preferably, the single-edge cutter head part is spirally provided with a spiral chip groove, and the outer side of the single-edge cutter head part is provided with a plane blade peak.
As still another preferable mode, a base is arranged at the lower end of the drilling hole, a single-edge cutter head is fixedly connected at the rear end of the base, the thickness of one end of the base is larger than that of the other end of the base, the foremost end of the single-edge cutter head is an inclined plane, the inclined position of the foremost end of the single-edge cutter head is close to the thickness of the side wall of the base connected with the rigid body, the inclined position of the foremost end of the single-edge cutter head is far away from the thin connecting part of the side wall of the base connected with the rigid body, the front end of the connecting part is provided with the rigid body, the front end of the rigid body is provided with the single-edge cutter head, and the center position of the front end of the single-edge cutter head is provided with the drilling hole;
The drilling part, drilling part front end is equipped with the tip, tip rear end is equipped with arc junk slot, spiral drilling groove is connected to arc junk slot rear end, spiral drilling groove is the ladder type, just drilling part rear end diameter is greater than the front end diameter.
Preferably, the connecting part comprises an end handle, a limiting groove is formed in the front end of the end handle, an installation body is arranged at the front end of the limiting groove, a protruding arc is arranged at the front end of the installation body, and the diameter of the installation body is smaller than that of the rigid body structure.
Preferably, the front end of the rigid body is fixedly connected with a bearing part, the bearing part is of a trapezoid table structure, the diameter of the front end of the bearing part is larger than that of the rear end of the bearing part, and the diameter of the front end of the bearing part is the same as that of the single-edge tool bit part.
Preferably, the single-edge cutter head part is spirally provided with a spiral chip groove, and the outer side of the single-edge cutter head part is provided with a plane blade peak.
As still another preferable mode, a base is arranged at the lower end of the drilling hole, a single-edge cutter head is fixedly connected to the rear end of the base, the thickness of one end of the base is larger than that of the other end of the base, the forefront end of the single-edge cutter head is an oblique plane, the oblique position of the forefront end of the single-edge cutter head is close to the thickness of the side wall of the base connected with the rigid body, and the oblique position of the forefront end of the single-edge cutter head is far away from the thickness of the side wall of the base connected with the rigid body.
The utility model has the beneficial effects that:
(1) According to the utility model, the connecting part is arranged, so that the cutter is convenient to connect, install and limit.
(2) According to the utility model, the rigid body is arranged, so that the distribution area of the cutter is reasonably designed, and the overall rigidity strength of the cutter is improved.
(3) According to the utility model, the single-edge cutter head is arranged, so that the convenience in chip removal after tapping is ensured, the abrasion of a drill bit is reduced, and the service life is prolonged.
(4) According to the utility model, the tip part is arranged, so that the fixed position of the hole is facilitated, the accurate position of the hole is ensured, the hole is facilitated, and the hole opening efficiency is high.
In conclusion, the cutter has the advantages of being strong in structural rigidity, convenient to connect and install, high in perforating efficiency and accurate in perforating position, and is particularly suitable for the technical field of single-edge drills.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, it being obvious that the drawings described below are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the overall structure of the present utility model.
Fig. 2 is a schematic view of the structure of the receiving part in the present utility model.
Fig. 3 is a schematic view of the structure of the tip part of the present utility model.
Detailed Description
The technical solutions in the embodiments of the present utility model are clearly and completely described below with reference to the accompanying drawings.
Example 1
As shown in fig. 1 to 3, the utility model provides a single-edge spiral drill bit, which comprises a connecting part 1, wherein the front end of the connecting part 1 is provided with a rigid body 2, the front end of the rigid body 2 is provided with a single-edge cutter head part 3, and the center position of the front end of the single-edge cutter head part 3 is provided with a drilling part 4;
The drilling part 4, drilling part 4 front end is equipped with tip 41, tip 41 rear end is equipped with arc junk slot 42, spiral drilling groove 43 is connected to arc junk slot 42 rear end, spiral drilling groove 43 is the ladder type, just drilling part 4 rear end diameter is greater than the front end diameter.
Further, connecting portion 1 includes end handle 11, end handle 11 front end is equipped with spacing groove 12, spacing groove 12 front end is equipped with installation body 13, installation body 13 front end is equipped with protruding circular arc 14, and installation body 13 diameter is less than rigid body 2 structure, and connecting portion 1 is mainly for the convenience with rotate the body and dismouting, spacing groove 12 carries out spacingly, protruding circular arc 14 mainly is transitional coupling rigid body 2, ensures that holistic rigidity intensity is big, and the workman takes the process and does not have the angle of bumping, difficult fish tail.
Further, the front end of the rigid body 2 is fixedly connected with the bearing part 21, the bearing part 21 is of a trapezoid table structure, the diameter of the front end of the bearing part 21 is larger than that of the rear end of the bearing part 21, the diameter of the front end of the bearing part 21 is the same as that of the single-edge cutter head 3, and the bearing part 21 is used for ensuring reasonable installation of the single-edge cutter head 3, so that the whole connecting rigidity is high, the design is reasonable, and the practicability is high.
Further, the single-edge cutter head 3 is spirally provided with the spiral chip removal groove 31, and the outer side of the single-edge cutter head 3 is provided with the plane blade peak 32, the plane blade peak 32 is convenient to open, the abrasion is not easy, the service life is long, and the spiral chip removal groove 31 is convenient for chip removal.
Still further, drilling portion 4 lower extreme is equipped with base 44, base 44 rear end fixed connection single-edge cutter head 3, and base 44 one end thickness is greater than the other end, single-edge cutter head 3 foremost is the slant plane, single-edge cutter head 3 foremost incline position is close to the lateral wall thickness of base 44 that rigid body 2 department connects, single-edge cutter head 3 foremost incline position keeps away from the lateral wall of base 44 that rigid body 2 department connects thin, and drilling portion 4 is in order to ensure that its axle center is vertical, so utilizes base 44 to carry out the filling of difference in height, and base 44 can also ensure that drilling portion 4's rigidity intensity of connection is big moreover, and tip portion 41 makes whole cutter trompil fast, trompil position is accurate.
The working process is that firstly, the connecting part 1 is in limit installation connection with the rotating body, the limit groove 12 is utilized for limit connection, the drilling part 4 is positioned, the tip part 41 is positioned, the arc chip removal groove 42 is convenient for drilling chip removal, the spiral drilling groove 43 is convenient for perforating, the perforating efficiency is improved, the single-edge cutter head 3 ensures the subsequent perforating depth and the perforating efficiency, the whole rigidity strength of the cutter is high, the perforating position is accurate, and the perforating efficiency is high.
In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "front and rear", "left and right", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or component in question must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the utility model.
Of course, in this disclosure, those skilled in the art will understand that the term "a" or "an" is to be interpreted as "at least one" or "one or more," i.e., in one embodiment, the number of elements may be one, and in another embodiment, the number of elements may be multiple, and the term "a" is not to be construed as limiting the number.
The foregoing is merely a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any changes or substitutions easily conceivable by those skilled in the art under the technical teaching of the present utility model should be included in the scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claims.
Claims (5)
1. A single-edge spiral drill bit is characterized by comprising
The connecting part (1), the front end of the connecting part (1) is provided with a rigid body (2), the front end of the rigid body (2) is provided with a single-edge cutter head part (3), and the center position of the front end of the single-edge cutter head part (3) is provided with a drilling part (4);
Drilling portion (4), drilling portion (4) front end is equipped with tip (41), tip (41) rear end is equipped with arc chip groove (42), spiral drilling groove (43) are connected to arc chip groove (42) rear end, spiral drilling groove (43) are the ladder type, just drilling portion (4) rear end diameter is greater than the front end diameter.
2. The single-edge spiral drill according to claim 1, wherein the connecting portion (1) comprises an end handle (11), a limiting groove (12) is formed in the front end of the end handle (11), an installation body (13) is arranged at the front end of the limiting groove (12), a protruding circular arc (14) is arranged at the front end of the installation body (13), and the diameter of the installation body (13) is smaller than that of the rigid body (2).
3. The single-edge spiral drill according to claim 1, wherein the front end of the rigid body (2) is fixedly connected with a bearing part (21), the bearing part (21) is of a trapezoid table structure, the diameter of the front end of the bearing part (21) is larger than that of the rear end, and the diameter of the front end of the bearing part (21) is the same as that of the single-edge cutter head (3).
4. A single-edge helical drill according to claim 1, characterized in that the single-edge bit portion (3) is helically provided with helical flutes (31) and that the single-edge bit portion (3) is provided with planar lands (32) on the outside.
5. The single-edge spiral drill according to claim 1, wherein a base (44) is arranged at the lower end of the drilling part (4), the rear end of the base (44) is fixedly connected with the single-edge cutter head part (3), one end of the base (44) is thicker than the other end, the foremost end of the single-edge cutter head part (3) is an inclined plane, the inclined position of the foremost end of the single-edge cutter head part (3) is close to the side wall thickness of the base (44) connected with the rigid body (2), and the inclined position of the foremost end of the single-edge cutter head part (3) is far away from the side wall thickness of the base (44) connected with the rigid body (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422203032.3U CN222999714U (en) | 2024-09-09 | 2024-09-09 | Single-edge spiral drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422203032.3U CN222999714U (en) | 2024-09-09 | 2024-09-09 | Single-edge spiral drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222999714U true CN222999714U (en) | 2025-06-20 |
Family
ID=96053827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202422203032.3U Active CN222999714U (en) | 2024-09-09 | 2024-09-09 | Single-edge spiral drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222999714U (en) |
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2024
- 2024-09-09 CN CN202422203032.3U patent/CN222999714U/en active Active
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