CN2152625Y - Hollow drill - Google Patents
Hollow drill Download PDFInfo
- Publication number
- CN2152625Y CN2152625Y CN 93233434 CN93233434U CN2152625Y CN 2152625 Y CN2152625 Y CN 2152625Y CN 93233434 CN93233434 CN 93233434 CN 93233434 U CN93233434 U CN 93233434U CN 2152625 Y CN2152625 Y CN 2152625Y
- Authority
- CN
- China
- Prior art keywords
- boring bit
- hollow boring
- piston
- utility
- model
- 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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- Drilling Tools (AREA)
Abstract
The utility model relates to a hollow boring bit. The utility model is characterized in that the handle part of the hollow boring bit 1 is processed with a centre hole 2 which is provided with a twist drill 3; the spiral drill 3 is higher than saw teeth 11 of the hollow boring bit 1; simultaneously, both sides of the hollow boring bit 1 are respectively processed with a small groove 5 and 10; the interior of the hollow boring bit 1 is provided with a spring 4 and a piston 6, and the exterior is provided with a sleeve ring 7; the piston 6 and the sleeve ring 7 are connected by screws 8 and 9 respectively through the small grooves 5 and 10. The spiral drill 3 performs the centering function, the spring 4 pushes the piston 6, and the chip is automatically removed. The utility model is especially suitable for boring thin plate materials.
Description
The utility model is the relevant a kind of hollow boring bit that is used for machining.
At present, the common hollow boring bit 1 that is used to process is not owing to there is axle location, so be difficult to find accurately the center of circle when operating, even found accurately, but because the cutting force of drill bit is big, also can produce shift phenomenon, and the eliminating of smear metal is also inconvenient, not only mismachining tolerance is big, and operating difficulties, thereby, develop a kind of new drill bit for being badly in need of.
The purpose of this utility model is to provide a kind of hollow boring bit, has characteristics such as accurate positioning, chip removal be easy, simple in structure.
Solution of the present utility model is to be processed with a centre bore at the shank that has hollow boring bit now, centre bore is equipped with a fluted drill, fluted drill is higher than the sawtooth of hollow boring bit, simultaneously be processed with a sulculus respectively in the both sides of hollow boring bit, spring and piston are housed in hollow boring bit, the collar is housed outward, by sulculus the piston and the collar is linked with screw.Like this, fluted drill plays centering, can realize automatic chip removal and promote piston by spring.
The utility model is simple in structure, handling ease, cost are low, can realize centering by adding a fluted drill at the hollow boring bit middle part, but also have characteristics such as chip removal is effective, easy to operate, overcome the disadvantage of common core drill, be applicable to various material borings, particularly be applicable to the boring of light sheet material.
Fig. 1 is a structure principle chart of the present utility model.
Fig. 2 is the null graph of tearing open of the present utility model.
Fig. 3 is the schematic diagram of the sawtooth 13 of hollow boring bit 1 of the present utility model.
Below in conjunction with drawings and Examples the utility model is further described.
The utility model adopts metal material machining to form as shown in drawings.It comprises hollow boring bit 1, it is characterized in that being processed with a centre bore 2 at the shank of hollow boring bit 1, by centre bore 2 fluted drill 3 is housed, fluted drill 3 is higher than the sawtooth of hollow boring bit 1, simultaneously be processed with a sulculus 5 and 10 respectively in the both sides of hollow boring bit 1, spring 4 and piston 6 are housed in hollow boring bit 1, the collar 7 is housed outward, by sulculus 5 and 10 piston 6 and the collar 7 are linked respectively with screw 8 and 9.Wherein, fluted drill 3 plays centering, can realize automatic chip removal and promote piston 6 by spring 4.Its feature also is sawtooth 11 outer bevels, like this, can make chip removal easier, laborsaving.During use, drill bit is contained on the rig, aims at the centers of circle, just can begin boring with fluted drill 3 because fluted drill 3 is made axle, Kong Buhui skew, boring steadily, drill the hole after because the elastic force of spring 4 can discharge smear metal automatically by piston 6, easy to operate.
Claims (2)
1, a kind of hollow boring bit, comprise hollow boring bit 1, it is characterized in that being processed with a centre bore 2 at the shank of hollow boring bit 1, centre bore 2 is equipped with a fluted drill 3, fluted drill 3 is higher than the sawtooth 11 of hollow boring bit 1, is processed with a sulculus 5 and 10 respectively in the both sides of hollow boring bit 1 simultaneously, and spring 4 and piston 6 are housed in hollow boring bit 1, the collar 7 is housed outward, by sulculus 5 and 10 piston 6 and the collar 7 is linked respectively with screw 8 and 9.
2, a kind of hollow boring bit according to claim 1 is characterized in that sawtooth 11 outer bevels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93233434 CN2152625Y (en) | 1993-03-11 | 1993-03-11 | Hollow drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93233434 CN2152625Y (en) | 1993-03-11 | 1993-03-11 | Hollow drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2152625Y true CN2152625Y (en) | 1994-01-12 |
Family
ID=33809369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93233434 Expired - Fee Related CN2152625Y (en) | 1993-03-11 | 1993-03-11 | Hollow drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2152625Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104066538A (en) * | 2012-01-03 | 2014-09-24 | 佛灵特拉白格公司 | Multi-position hole saw assembly with plug ejector |
| CN111152064A (en) * | 2020-02-19 | 2020-05-15 | 深圳市迅成科技有限公司 | Clean type drilling system that drill bit is clean convenient |
| CN113021651A (en) * | 2021-03-12 | 2021-06-25 | 上海呈祥机电设备有限公司 | Auxiliary positioning mechanism for portable diamond drilling machine |
-
1993
- 1993-03-11 CN CN 93233434 patent/CN2152625Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104066538A (en) * | 2012-01-03 | 2014-09-24 | 佛灵特拉白格公司 | Multi-position hole saw assembly with plug ejector |
| CN111152064A (en) * | 2020-02-19 | 2020-05-15 | 深圳市迅成科技有限公司 | Clean type drilling system that drill bit is clean convenient |
| CN113021651A (en) * | 2021-03-12 | 2021-06-25 | 上海呈祥机电设备有限公司 | Auxiliary positioning mechanism for portable diamond drilling machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |