CN205342027U - Be provided with centering sleeve 's metal hole digger - Google Patents
Be provided with centering sleeve 's metal hole digger Download PDFInfo
- Publication number
- CN205342027U CN205342027U CN201521080977.5U CN201521080977U CN205342027U CN 205342027 U CN205342027 U CN 205342027U CN 201521080977 U CN201521080977 U CN 201521080977U CN 205342027 U CN205342027 U CN 205342027U
- Authority
- CN
- China
- Prior art keywords
- hole
- centring sleeve
- pilot bit
- face
- super
- 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
Links
Abstract
The utility model discloses a be provided with centering sleeve's metal hole digger, bore including the trompil, the trompil brill is provided with the centering drill bit along the axial central point department of putting rigid coupling, and centering sleeve has been cup jointed to the outside of centering drill bit, and centering sleeve lies in open end one side that the trompil was bored. The utility model discloses simple structure, installation convenient to use have effectively solved the problem that can't to drilling tool fix a position, cause new hole enlargement hole of opening when using hole digger to carry out the hole enlargement construction among the prior art and process the hole decentraction.
Description
Technical field
This utility model belongs to drilling tool technical field, is specifically related to a kind of metal hole-opener being provided with centring sleeve.
Background technology
When using hole making drill that the materials such as metal are carried out perforate operation, it is frequently encountered the construction demand to the hole hole diameter enlargement processed.When the hole making drill utilizing corresponding size carries out perforate, owing to the bit size of hole making drill is fixed and less, the pore size in processing hole is different, and thus resulting in drilling tool cannot position.Being generally adopted the direct perforate of ocular estimate in prior art, the expanding hole so newly opened is usually not concentric with the former hole processed, and causes the position in hole to change, makes troubles to subsequent installation.
Utility model content
The purpose of this utility model is to provide a kind of metal hole-opener being provided with centring sleeve, solves to use hole making drill cannot drilling tool be positioned when carrying out expanding construction in prior art, causes the expanding Kong Yuyi newly opened to process the problem that hole is not concentric.
This utility model be the technical scheme is that a kind of metal hole-opener being provided with centring sleeve, including super hole cutter, the affixed pilot bit that is provided with of super hole cutter center position vertically, the outer cover of pilot bit is connected to centring sleeve, and centring sleeve is positioned at the opening side of super hole cutter.
Feature of the present utility model also resides in:
Centring sleeve is hollow round table-like, and the center of the small end face of centring sleeve and the center of large end face are provided with the default taper hole matched with pilot bit, and pilot bit is through presetting taper hole, and large end face is arranged towards the opening of super hole cutter.
The diameter of small end face is more than the diameter of pilot bit, and the diameter of large end face is less than the diameter of super hole cutter.
The outer cover of pilot bit is connected to spring, and spring is positioned at the inside of centring sleeve and super hole cutter.
The beneficial effects of the utility model are: a kind of metal hole-opener being provided with centring sleeve of this utility model, simple in construction, easy to install, efficiently solve and prior art uses hole making drill cannot drilling tool be positioned when carrying out expanding construction, cause the expanding Kong Yuyi newly opened to process the problem that hole is not concentric.
Accompanying drawing explanation
Fig. 1 is the structural representation after a kind of metal hole-opener partly cut-away being provided with centring sleeve of this utility model；
Fig. 2 is the structural representation after this utility model centring sleeve partly cut-away；
Fig. 3 is that metallic plate is carried out the schematic diagram of perforate construction by this utility model.
In figure, 1. super hole cutter, 2. centring sleeve, 201. small end faces, 202. preset taper hole, 203. large end faces, 3. spring, 4. pilot bit, 5. metallic plate.
Detailed description of the invention
Below in conjunction with accompanying drawing and detailed description of the invention, this utility model is described in further detail:
A kind of metal hole-opener being provided with centring sleeve of this utility model, as it is shown in figure 1, include super hole cutter 1, super hole cutter 1 center position vertically is affixed is provided with pilot bit 4, the outer cover of pilot bit 4 is connected to centring sleeve 2, and centring sleeve 2 is positioned at the opening side of super hole cutter 1.As shown in Figure 2, centring sleeve 2 is hollow round table-like, the center of the small end face 201 of centring sleeve 2 and the center of large end face 203 are provided with the default taper hole 202 matched with pilot bit 4, and pilot bit 4 is through presetting taper hole 202, and large end face 203 is arranged towards the opening of super hole cutter 1.The diameter of small end face 201 is more than the diameter of pilot bit 4, and the diameter of large end face 203 is less than the diameter of super hole cutter 1.The outer cover of pilot bit 4 is connected to spring 3, and spring 3 is positioned at centring sleeve 2 and the inside of super hole cutter 1.
This utility model is operationally, as shown in Figure 3, if situation about being frequently encountered by during as site operation, metallic plate 5 is holed and the diameter in this hole is more than the diameter of pilot bit 4, in this case, it is impossible to utilize existing common hole making drill to get out on a metal plate and concentric hole of holing.Now, the small end face 201 of centring sleeve 2 is inserted in the hole opened on metallic plate 5, then utilize the side of centring sleeve 2 to be pressed into this in perforate, drive super hole cutter 1 to rotate, get out the hole of required diameter.
Claims (3)
1. the metal hole-opener being provided with centring sleeve, it is characterized in that, including super hole cutter (1), super hole cutter (1) center position vertically is affixed is provided with pilot bit (4), the outer cover of pilot bit (4) is connected to centring sleeve (2), and centring sleeve (2) is positioned at the opening side of super hole cutter (1)；Described centring sleeve (2) is for hollow round table-like, the center of the small end face (201) of centring sleeve (2) and the center of large end face (203) are provided with the default taper hole (202) matched with pilot bit (4), pilot bit (4) is through described default taper hole (202), and described large end face (203) is arranged towards the opening of super hole cutter (1).
2. a kind of metal hole-opener being provided with centring sleeve according to claim 1, it is characterized in that, the diameter of described small end face (201) is more than the diameter of pilot bit (4), and the diameter of described large end face (203) is less than the diameter of super hole cutter (1).
3. a kind of metal hole-opener being provided with centring sleeve according to claim 1 and 2, it is characterized in that, the outer cover of described pilot bit (4) is connected to spring (3), and spring (3) is positioned at centring sleeve (2) and the inside of super hole cutter (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521080977.5U CN205342027U (en) | 2015-12-22 | 2015-12-22 | Be provided with centering sleeve 's metal hole digger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521080977.5U CN205342027U (en) | 2015-12-22 | 2015-12-22 | Be provided with centering sleeve 's metal hole digger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205342027U true CN205342027U (en) | 2016-06-29 |
Family
ID=56168865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521080977.5U Expired - Fee Related CN205342027U (en) | 2015-12-22 | 2015-12-22 | Be provided with centering sleeve 's metal hole digger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205342027U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108638343A (en) * | 2018-03-28 | 2018-10-12 | 东莞泰升玻璃有限公司 | A kind of drilling equipment of plate glass |
| CN114472961A (en) * | 2022-01-29 | 2022-05-13 | 王力安防科技股份有限公司 | Lock head hole reaming positioner and have reaming device of this locator |
-
2015
- 2015-12-22 CN CN201521080977.5U patent/CN205342027U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108638343A (en) * | 2018-03-28 | 2018-10-12 | 东莞泰升玻璃有限公司 | A kind of drilling equipment of plate glass |
| CN114472961A (en) * | 2022-01-29 | 2022-05-13 | 王力安防科技股份有限公司 | Lock head hole reaming positioner and have reaming device of this locator |
| CN114472961B (en) * | 2022-01-29 | 2023-08-08 | 王力安防科技股份有限公司 | Tapered end hole expanding locator and hole expanding device with same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160629 Termination date: 20161222 |