CN203184711U - Combined twist drill integrating drilling and bearizing - Google Patents
Combined twist drill integrating drilling and bearizing Download PDFInfo
- Publication number
- CN203184711U CN203184711U CN 201320078801 CN201320078801U CN203184711U CN 203184711 U CN203184711 U CN 203184711U CN 201320078801 CN201320078801 CN 201320078801 CN 201320078801 U CN201320078801 U CN 201320078801U CN 203184711 U CN203184711 U CN 203184711U
- Authority
- CN
- China
- Prior art keywords
- fluted drill
- twist drill
- drilling
- bearizing
- path
- 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 - Fee Related
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Abstract
The utility model relates to a combined twist drill integrating drilling and bearizing. The combined twist drill integrating the drilling and the bearizing arms to be simple in structure and convenient to machine, therefore, the operating method of the drilling and the bearizing is simplified, and working efficiency is improved. According to the technical scheme, the combined twist drill integrating the drilling and the bearizing comprises a large-diameter twist drill body and a small-diameter twist drill body. The combined twist drill integrating the drilling and the bearizing is characterized in that the small-diameter twist drill body comprises a drilling head part and a drilling handle part, and the section of the drilling handle part is of a square shape; a blind hole is axially formed in the tip end of the large-diameter twist drill body, the blind hole is of a square shape, and the small-diameter twist drill body is arranged in the blind hole in an inserting mode. The combined twist drill integrating the drilling and the bearizing is suitable for machining cutting tools.
Description
Technical field
The utility model relates to a kind of fluted drill, especially a kind of compound fluted drill that expands one that bores.Be applicable to machine tool.
Background technology
For there is higher precision in the hole that guarantees to process, at first to be drilled with an aperture, and then aperture is carried out reaming.Conventional at present way is exactly to get out aperture with the path drill bit earlier, changes the drill bit reaming of big footpath then.This way not only bothers very much, and operating efficiency is low.Offset tool easily takes place in reaming after pulling down the path drill bit to change big footpath drill bit, causes the reaming failure.
Summary of the invention
The technical problems to be solved in the utility model is: at the problem of above-mentioned existence, provide a kind of brill simple in structure, easy to process to expand the compound fluted drill of one, to simplify the hole drilling and reaming method of operating, increase work efficiency.
The technical scheme that the utility model adopts is: a kind of compound fluted drill that expands one that bores, comprise big footpath fluted drill and path fluted drill, and it is characterized in that: described path fluted drill comprises bit part and drillstock part, the drill shank partial cross-section is square; Fluted drill tip, big footpath axially has blind hole, and this blind hole is square, the described path fluted drill of plug-in mounting in it.
Have screw and be furnished with screw on the described blind hole one side opening wall.
Described big footpath fluted drill is fixedlyed connected through latch with the path fluted drill.
The beneficial effects of the utility model are: simple in structure, the convenient processing and manufacture of the utility model, footpath fluted drill and path fluted drill are combined with each other greatly, thereby simplify the hole drilling and reaming method of operating, increase work efficiency.
Description of drawings
Structural representation when Fig. 1 is the work of embodiment path fluted drill.
Partial sectional view when Fig. 2 is the work of embodiment path fluted drill.
Partial sectional view when Fig. 3 is the fluted drill work of the big footpath of embodiment.
The specific embodiment
Present embodiment is a kind of compound fluted drill that expands one that bores, and comprises big footpath fluted drill 1 and path fluted drill 2.Path fluted drill 2 comprises bit part 201 and drillstock part 202 in this example, and the drill shank partial cross-section is square.Big footpath fluted drill 1 tip axis is to having blind hole 101, and this blind hole is square, and size is identical with path fluted drill 2 drillstocks, but plug-in mounting path fluted drill 2 in the blind hole 101.After path fluted drill 2 complete plug-in mountings were gone into blind hole 101, exposed at path fluted drill 2 tips, forms a new major diameter drill bit with big footpath fluted drill 1.Have screw and be furnished with screw 3 at blind hole 101 1 side opening walls in the present embodiment.
The concrete operation method of present embodiment is as follows:
A, path bit bore location: as shown in Figure 1 and Figure 2, at first screwing screw 3 makes it stop up blind hole 101, path fluted drill 2 is inserted in the blind hole 101, its end withstands screw 3, bit part 201 exposes outside, big footpath fluted drill 1 is fixedlyed connected through latch 4 with path fluted drill 2, comes off to prevent path fluted drill 2.Because bit part 201 and the blind hole 101 of path fluted drill 2 are square, so path fluted drill 2 can not relatively rotate with big footpath fluted drill 1.
B, the drill bit reaming of big footpath: as shown in Figure 3, with in the integral plugged blind hole 101 of going into big footpath fluted drill 1 of path fluted drill 2, rotary screw 3 makes it hold out against path fluted drill 2 then, forms a new major diameter drill bit this moment earlier.
Certainly, above-mentioned explanation is not to restriction of the present utility model, and the utility model also is not limited to above-mentioned giving an example; those skilled in the art; in scope of the present utility model, the variation of making, change and add or replace, all should belong to protection domain of the present utility model.
Claims (3)
1. one kind is bored the compound fluted drill that expands one, comprises big footpath fluted drill (1) and path fluted drill (2), it is characterized in that: described path fluted drill (2) comprises bit part (201) and drillstock part (202), and the drill shank partial cross-section is square; Big footpath fluted drill (1) tip axis is to having blind hole (101), and this blind hole is square, the described path fluted drill of plug-in mounting (2) in it.
2. brill according to claim 1 expands the compound fluted drill of one, it is characterized in that: have screw and be furnished with screw (3) on described blind hole (101) the one side opening walls.
3. brill according to claim 1 expands the compound fluted drill of one, and it is characterized in that: described big footpath fluted drill (1) is fixedlyed connected through latch (4) with path fluted drill (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320078801 CN203184711U (en) | 2013-02-20 | 2013-02-20 | Combined twist drill integrating drilling and bearizing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320078801 CN203184711U (en) | 2013-02-20 | 2013-02-20 | Combined twist drill integrating drilling and bearizing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203184711U true CN203184711U (en) | 2013-09-11 |
Family
ID=49101607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320078801 Expired - Fee Related CN203184711U (en) | 2013-02-20 | 2013-02-20 | Combined twist drill integrating drilling and bearizing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203184711U (en) |
-
2013
- 2013-02-20 CN CN 201320078801 patent/CN203184711U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130911 Termination date: 20140220 |