CN204545516U - A kind of adjustable in length drill bit - Google Patents
A kind of adjustable in length drill bit Download PDFInfo
- Publication number
- CN204545516U CN204545516U CN201520207493.6U CN201520207493U CN204545516U CN 204545516 U CN204545516 U CN 204545516U CN 201520207493 U CN201520207493 U CN 201520207493U CN 204545516 U CN204545516 U CN 204545516U
- Authority
- CN
- China
- Prior art keywords
- drill bit
- hole
- locating
- drillstock
- little
- 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 And Boring (AREA)
Abstract
The utility model relates to a kind of adjustable in length drill bit, and it comprises: little drill bit, large drill bit, drillstock, through hole, locating hole, packing ring, dog screw, locating slot group; Described large drill bit and drillstock are integrated, in ledge structure; Be provided with through hole at the central part of large drill bit and drillstock, through hole matches with little drill bit; Described little drill bit can be free to slide in through hole; Be provided with locating slot group at the shank of described little drill bit, described locating slot group is made up of 2 ~ 5 locating slots; All locating slots are parallel mutually; Described drillstock is provided with locating hole, and locating hole can coordinate with arbitrary locating slot of locating slot group, is fixed by little drill bit by packing ring, dog screw.The all rounded through hole transversary of all locating slots, is positioned at the shank of little drill bit uniformly.The utility model adjustable in length drill bit not only structure is simple, and easy to operate, eccentric phenomena can not occur during boring, main is very economic and practical.The machining of different industries can be widely used in.
Description
Technical field
The utility model belongs to field of machining, particularly a kind of drill bit of adjustable in length.
Background technology
In field of machining, boring is one very common manufacturing procedure, but traditional the length of the bit is fixing, and size and the length of drill bit are directly proportional substantially, therefore, when the diameter of drill bit is fixed, length will be restricted.Particularly when boring shoulder hole, will be cumbersome, need the drill bit changing different-diameter and length.
Utility model content
for overcoming above-mentioned defect, the purpose of this utility model is to provide a kind of structure adjustable in length drill bit simple, easy to operate, with low cost.
A kind of adjustable in length drill bit, it comprises: little drill bit, large drill bit, drillstock, through hole, locating hole, packing ring, dog screw, locating slot group; Described large drill bit and drillstock are integrated, in ledge structure; Be provided with through hole at the central part of large drill bit and drillstock, through hole matches with little drill bit; Described little drill bit can be free to slide in through hole; Be provided with locating slot group at the shank of described little drill bit, described locating slot group is made up of 2 ~ 5 locating slots; All locating slots are parallel mutually; Described drillstock is provided with locating hole, and locating hole can coordinate with arbitrary locating slot of locating slot group, is fixed by little drill bit by packing ring, dog screw.
The all rounded through hole transversary of all locating slots, is positioned at the shank of little drill bit uniformly.
The utility model adjustable in length drill bit not only structure is simple, and easy to operate, eccentric phenomena can not occur during boring, main is very economic and practical.The machining of different industries can be widely used in.
Accompanying drawing explanation
Fig. 1 is the structural representation of the adjustable drill bit of the utility model.
Detailed description of the invention
below in conjunction with accompanying drawing, the utility model is described in detail.
As shown in Figure 1, a kind of adjustable in length drill bit, it comprises: little drill bit 1, large drill bit 2, drillstock 3, through hole 4, locating hole 5, packing ring 6, dog screw 7, locating slot group 8.Large drill bit 2 is integrated with drillstock 3, and in ledge structure, be provided with through hole 4 at the central part of large drill bit 2 and drillstock 3, through hole 4 matches with little drill bit 1.Little drill bit 1 can be free to slide in through hole 4.Be provided with locating slot group 8 at the shank of little drill bit 1, locating slot group 8 is made up of 2 ~ 5 locating slots, and the rounded through hole transversary of all locating slots, is positioned at the shank of little drill bit 1 uniformly.All locating slots are parallel mutually.Drillstock 3 is provided with locating hole 5, and locating hole 5 can coordinate with arbitrary locating slot of locating slot group 8, is fixed by little drill bit 1 by packing ring 6, dog screw 7.
The utility model can adjust the length of little drill bit 1 according to the actual needs of drillable length when producing, and when not needing little drill bit, can also extract out or be hidden in through hole 4.The utility model adjustable in length drill bit is the improvement carried out on the basis of existing adjustable drill bit, and original drill bit due to only fixing, easily produces eccentric phenomena in use.The utility model drill bit can regulate arbitrarily the length of little drill bit 1 according to the needs produced, only need dog screw 5 to tighten.
Claims (2)
1. an adjustable in length drill bit, it comprises: little drill bit (1), large drill bit (2), drillstock (3), through hole (4), locating hole (5), packing ring (6), dog screw (7), locating slot group (8); It is characterized in that: described large drill bit (2) and drillstock (3) are integrated, in ledge structure; Be provided with through hole (4) at the central part of large drill bit (2) and drillstock (3), through hole (4) matches with little drill bit (1); Described little drill bit (1) can be free to slide in through hole (4); Be provided with locating slot group (8) at the shank of described little drill bit (1), described locating slot group (8) is made up of 2 ~ 5 locating slots; All locating slots are parallel mutually; Described drillstock (3) is provided with locating hole (5), and locating hole (5) can coordinate with arbitrary locating slot of locating slot group (8), is fixed by little drill bit (1) by packing ring (6), dog screw (7).
2. adjustable in length drill bit according to claim 1, is characterized in that: all rounded through hole transversary of all locating slots, is positioned at the shank of little drill bit (1) uniformly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520207493.6U CN204545516U (en) | 2015-04-09 | 2015-04-09 | A kind of adjustable in length drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520207493.6U CN204545516U (en) | 2015-04-09 | 2015-04-09 | A kind of adjustable in length drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204545516U true CN204545516U (en) | 2015-08-12 |
Family
ID=53820681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520207493.6U Expired - Fee Related CN204545516U (en) | 2015-04-09 | 2015-04-09 | A kind of adjustable in length drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204545516U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107626957A (en) * | 2017-10-30 | 2018-01-26 | 卢丽 | drill bit |
| CN108296537A (en) * | 2018-04-18 | 2018-07-20 | 郑州佳泰机电科技有限公司 | A kind of milling machine metal bit being conveniently replaceable |
| CN111980589A (en) * | 2019-05-24 | 2020-11-24 | 江苏叁陆零工具有限公司 | Multifunctional drill bit |
-
2015
- 2015-04-09 CN CN201520207493.6U patent/CN204545516U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107626957A (en) * | 2017-10-30 | 2018-01-26 | 卢丽 | drill bit |
| CN108296537A (en) * | 2018-04-18 | 2018-07-20 | 郑州佳泰机电科技有限公司 | A kind of milling machine metal bit being conveniently replaceable |
| CN111980589A (en) * | 2019-05-24 | 2020-11-24 | 江苏叁陆零工具有限公司 | Multifunctional drill bit |
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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 |
Granted publication date: 20150812 Termination date: 20170409 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |