CN220462336U - Single-blade double-groove micro drill bit - Google Patents
Single-blade double-groove micro drill bit Download PDFInfo
- Publication number
- CN220462336U CN220462336U CN202322073455.3U CN202322073455U CN220462336U CN 220462336 U CN220462336 U CN 220462336U CN 202322073455 U CN202322073455 U CN 202322073455U CN 220462336 U CN220462336 U CN 220462336U
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- Prior art keywords
- drill bit
- curved surface
- drill
- groove
- micro
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Links
- 238000009434 installation Methods 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 229910000997 High-speed steel Inorganic materials 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
Landscapes
- Drilling Tools (AREA)
Abstract
The utility model discloses a single-edge double-groove micro drill bit which comprises a connecting rod, a first connecting curved surface, a second connecting curved surface, a cutter bar, a drill bit, a drill point, a bolt column, a cutting edge, a first chip groove, a second chip groove, a mounting part and a bolt hole. Compared with the prior art, the utility model has the following beneficial effects: this single-blade double-groove micro drill bit through setting up two junk slots, can solve along with panel thickness improvement, drill point draw ratio increase, and the problem such as jack, stifled dirt, broken needle appear easily in single-groove chip removal, improves device's work efficiency, through setting up drill bit and drill point, realizes trompil earlier boring, further protects micro drill bit's life, hoisting device's practicality.
Description
Technical Field
The utility model relates to a cutter device, in particular to a single-blade double-groove micro drill bit.
Background
The drill bit is a tool with rotating head end and cutting capacity, and is generally manufactured by milling or rolling materials such as carbon steel SK or high-speed steel SKH2 and SKH3, quenching, tempering and heat treatment and grinding. Along with the development of high integration and precision of electronic products, a printed circuit board (pcb) gradually develops towards the directions of small aperture, narrow line distance, high density and multiple layers, and along with the thicker and thicker printed circuit board and the smaller and smaller diameter of copper-clad holes, the length-diameter ratio of a pcb micro drill bit is also continuously increased.
At present, the length-diameter ratio of the pcb micro-drill industry is more than 22 times and is regarded as an aspect ratio drill point, the existing pcb micro-drill adopts single-groove chip removal, and the problems of hole plugging, dust blocking, needle breakage and the like easily occur in the single-groove chip removal along with the increase of the thickness of the plate and the increase of the aspect ratio of the drill point
Disclosure of Invention
The utility model aims to solve the problems and provide the single-blade double-groove micro drill.
The utility model realizes the above purpose through the following technical scheme: the utility model provides a single-blade double-groove miniature drill bit, includes connecting rod, cutter arbor and drill bit, the end of connecting rod is provided with the installation department, the front end of connecting rod is provided with first connection curved surface, the front end of first connection curved surface is provided with the second connection curved surface, the front end of second connection curved surface is provided with the cutter arbor, be provided with the drill bit on the cutter arbor, the front end of drill bit is provided with the bolt hole, the inside of bolt hole is provided with the bolt post, the front end of bolt post is provided with the drill point, the side of drill bit is provided with the cutting edge, the side of cutting edge is provided with chip groove one and chip groove two.
Preferably, the front end of the drill bit is provided with a drill tip, and the drill tip is provided with a sharp structure.
Preferably, the chip grooves I and the chip grooves II are formed in two sides of the cutting edge, and the drill bit is of a single-edge structure.
Preferably, a first connecting curved surface and a second connecting curved surface are arranged between the connecting rod and the cutter bar, and the first connecting curved surface and the second connecting curved surface are arranged to be of a ladder-shaped structure.
Preferably, the rear end of the connecting rod is provided with a mounting part, and the mounting part is in a rectangular structure.
Compared with the prior art, the utility model has the following beneficial effects:
1. this single-blade double-groove micro drill bit through setting up two junk slots, can solve along with panel thickness improvement, drill point draw ratio increase, and the problem such as jack, dust blocking, broken needle appear easily in single-groove chip removal, improves the work efficiency of device.
2. According to the single-blade double-groove micro drill, the drill bit and the drill point are arranged, so that the hole is drilled firstly, the service life of the micro drill is further protected, and the practicability of the device is improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of the structure of the drill tip of the present utility model;
in the figure: 1. a connecting rod; 2. a first connecting curved surface; 3. a second connecting curved surface; 4. a cutter bar; 5. a drill bit; 6. a drill tip; 7. a bolt post; 8. a blade; 9. a chip removal groove I; 10. chip removal groove II; 11. a mounting part; 12. bolt holes.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. 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.
Referring to fig. 1-2, a single-edge double-groove micro drill bit comprises a connecting rod 1, a cutter bar 4 and a drill bit 5, wherein the tail end of the connecting rod 1 is provided with a mounting part 11, the front end of the drill bit 5 is provided with a drill tip 6, the drill tip 6 is provided with a sharp-type structure, the front end of the connecting rod 1 is provided with a first connecting curved surface 2, the front end of the first connecting curved surface 2 is provided with a second connecting curved surface 3, two sides of a cutting edge 8 are provided with a chip groove I9 and a chip groove II 10, the drill bit 5 is provided with a single-edge structure, the front end of the second connecting curved surface 3 is provided with the cutter bar 4, the cutter bar 4 is provided with the drill bit 5, the first connecting curved surface 2 and the second connecting curved surface 3 are arranged into a ladder-shaped structure, the front end of the drill bit 5 is provided with a bolt hole 12, the inside of the bolt hole 12 is provided with a bolt column 7, the front end of the bolt column 7 is provided with the drill tip 6, the side face 5 is provided with the cutting edge 8, the side face 8 is provided with the cutting edge 11, and the side face 11 is provided with the cutting edge 11.
Working principle: when the single-blade double-groove micro drill is used, firstly, the cutter handle 1 and the connecting rod 2 are connected together through an excessive inclined plane, secondly, the micro motor 9 is started when the micro drill is used, so that cooling water passes through the circulating pipeline 11, finally, the cooling water enters the pipeline through the water inlet 12 and then enters the liquid storage tank 8 through the water outlet 14, and the single-blade double-groove micro drill can be normally used.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (5)
1. The utility model provides a single-blade double-flute miniature drill bit, includes connecting rod (1), cutter arbor (4) and drill bit (5), its characterized in that: the end of connecting rod (1) is provided with installation department (11), the front end of connecting rod (1) is provided with first connection curved surface (2), the front end of first connection curved surface (2) is provided with second connection curved surface (3), the front end of second connection curved surface (3) is provided with cutter arbor (4), be provided with drill bit (5) on cutter arbor (4), the front end of drill bit (5) is provided with bolt hole (12), the inside of bolt hole (12) is provided with bolt post (7), the front end of bolt post (7) is provided with drill point (6), the side of drill bit (5) is provided with cutting edge (8), the side of cutting edge (8) is provided with chip groove one (9) and chip groove two (10).
2. A single-bladed double-fluted micro-drill according to claim 1, wherein: the front end of the drill bit (5) is provided with a drill tip (6), and the drill tip (6) is in a sharp structure.
3. A single-bladed double-fluted micro-drill according to claim 1, wherein: chip grooves I (9) and chip grooves II (10) are formed in two sides of the cutting edge (8), and the drill bit (5) is of a single-edge structure.
4. A single-bladed double-fluted micro-drill according to claim 1, wherein: a first connecting curved surface (2) and a second connecting curved surface (3) are arranged between the connecting rod (1) and the cutter bar (4), and the first connecting curved surface (2) and the second connecting curved surface (3) are arranged to be of a ladder-shaped structure.
5. A single-bladed double-fluted micro-drill according to claim 1, wherein: the rear end of the connecting rod (1) is provided with a mounting part (11), and the mounting part (11) is of a rectangular structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322073455.3U CN220462336U (en) | 2023-08-03 | 2023-08-03 | Single-blade double-groove micro drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322073455.3U CN220462336U (en) | 2023-08-03 | 2023-08-03 | Single-blade double-groove micro drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220462336U true CN220462336U (en) | 2024-02-09 |
Family
ID=89796495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322073455.3U Active CN220462336U (en) | 2023-08-03 | 2023-08-03 | Single-blade double-groove micro drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220462336U (en) |
-
2023
- 2023-08-03 CN CN202322073455.3U patent/CN220462336U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |