CN202343999U - Novel step drill - Google Patents
Novel step drill Download PDFInfo
- Publication number
- CN202343999U CN202343999U CN2011204252200U CN201120425220U CN202343999U CN 202343999 U CN202343999 U CN 202343999U CN 2011204252200 U CN2011204252200 U CN 2011204252200U CN 201120425220 U CN201120425220 U CN 201120425220U CN 202343999 U CN202343999 U CN 202343999U
- Authority
- CN
- China
- Prior art keywords
- cutter head
- cutting part
- step drill
- cutting portion
- cutting
- 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.)
- Expired - Lifetime
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- Drilling Tools (AREA)
Abstract
The utility model relates to the technical field of punching drilling tools, in particular to a novel step drill. The step drill comprises a cutting part and a clamping part, wherein the top end of a cutter head of the cutting part is in a conical shape, and the tail end of the cutter head is in a cylindrical shape; and the clamping part is connected to the lower end face of the cutting part. The step drill is characterized in that a chip removal groove is formed in a cavity of the cutting part, and the cutting part is divided into multiple levels; the chip removal groove 4 is arranged in the cavity in a mode of inclining 120 degrees; the cutting cutter head contains diamond ingredients and is sharp proportionally; and due to the adoption of annular design, the drilling is smooth, the quality of the inner walls of holes can be ensured, and the requirements on pore diameters of different sizes can be met.
Description
Technical field
The utility model relates to the Hole drilling set technical field, and especially a kind of novel step bores.
Background technology
The general electric perforator that uses cuts step in daily life and the engineering, but electric perforator generally has only a kind of aperture, and cutter can not one-shot forming, and need accomplish punching weak effect, inefficiency through repeatedly punching or changing grinding tool.
Summary of the invention
In order to overcome the deficiency of prior art, the utility model provides a kind of novel step to bore.
The utility model solves the technical scheme that its technical problem adopted: a kind of novel step bores; Comprise cutting portion and clamping part; It is coniform that the cutter head top of cutting portion becomes, and the cutter head end is cylindrical, and clamping part is connected on the lower surface of cutting portion; The cutting portion chamber is built-in with chip area, the cutting tip many levels.
According to another embodiment of the utility model, comprise that further described chip area tilting 120 spends in cavity.
The beneficial effect of the utility model is, contains the diamond composition in the cutter tip, and ratio is sharp, and has adopted circular design, relatively steadily, can guarantee the quality of hole inwall in the boring procedure, can satisfy the needs in different size aperture.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the cutter head vertical view of the utility model;
Among the figure 1, cutting portion, 2, clamping part, 3, cutter head, 4, chip area.
The specific embodiment
Like Fig. 1, shown in Figure 2, a kind of novel step bores, and comprises cutting portion 1 and clamping part 2; It is coniform that cutter head 3 tops of cutting portion 1 become, and cutter head 3 ends are cylindrical, and clamping part 2 is connected on the lower surface of cutting portion 1; Cutting portion 1 chamber is built-in with chip area 4,1 fen many levels of cutting portion.
Specific embodiment one: in use,, be connected with electric perforator according to required pore size.During rotation, on material, hole in the time of alloy screw thread drill bit cutting material.By the time when needing the aperture, can motor and grooved bit be separated,, can the cutting portion drill bit be screwed out from special-shaped machine by the time cut to the demand position.
Claims (2)
1. a novel step bores; Comprise cutting portion (1) and clamping part (2), it is coniform that cutter head (3) top of cutting portion (1) becomes, and cutter head (3) end is cylindrical; Clamping part (2) is connected on the lower surface of cutting portion (1); It is characterized in that cutting portion (1) chamber is built-in with chip area (4), cutting portion (1) divides many levels.
2. novel step according to claim 1 bores, and it is characterized in that described chip area (4) tilting 120 is spent in cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204252200U CN202343999U (en) | 2011-11-01 | 2011-11-01 | Novel step drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204252200U CN202343999U (en) | 2011-11-01 | 2011-11-01 | Novel step drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202343999U true CN202343999U (en) | 2012-07-25 |
Family
ID=46533028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204252200U Expired - Lifetime CN202343999U (en) | 2011-11-01 | 2011-11-01 | Novel step drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202343999U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103769654A (en) * | 2012-10-22 | 2014-05-07 | 诺德轮毂制造有限公司 | Bolt hole drill bit |
-
2011
- 2011-11-01 CN CN2011204252200U patent/CN202343999U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103769654A (en) * | 2012-10-22 | 2014-05-07 | 诺德轮毂制造有限公司 | Bolt hole drill bit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120725 |
|
| CX01 | Expiry of patent term |