CN204322178U - A kind of drill - Google Patents
A kind of drill Download PDFInfo
- Publication number
- CN204322178U CN204322178U CN201420786821.8U CN201420786821U CN204322178U CN 204322178 U CN204322178 U CN 204322178U CN 201420786821 U CN201420786821 U CN 201420786821U CN 204322178 U CN204322178 U CN 204322178U
- Authority
- CN
- China
- Prior art keywords
- drill point
- drill
- grip shank
- installing hole
- point
- 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
A kind of drill that the utility model provides, comprise grip shank and drill point, described drill point is hollow tubular, it is characterized in that: described grip shank and drill point are detachable connection, the bottom of described grip shank is provided with drill point installing hole, and is provided with external screw thread at bottom cylindrical, and bottom cylindrical is also provided with longitudinal cut and penetrates into drill point installing hole, described drill point is tightened up by nut after inserting drill point installing hole from the bottom of grip shank, and nut thread is screwed on external screw thread.Said structure of the present utility model makes the drill point of drill bit independently change, and replaces the wearing and tearing because of drill point to bring whole drill bit needs to carry out changing the waste brought, and technique is simple simultaneously, reduces production cost.
Description
Technical field
The utility model relates to a kind of improvement invention being mainly used in the drill of paper products and plastic products boring.
Background technology
The boring many times such as current paper products, plastic products has been come by high-speed boring machine, and need to use special drill, the usual structure of this kind of drill is: comprise grip shank and drill point, grip shank and the machine-shaping of drill point one.Because the drill point of drill bit has higher requirement to precision and its material, make drill bit and grip shank add simultaneously man-hour difficulty large, cost is also relatively high; Also have what is more important, because drill point will carry out High Rotation Speed with paper products, plastic products and contacts when the work of boring, wearing and tearing are comparatively large, so need whole drill bit to be changed together in use for some time, seriously cause waste, too increase production cost.
Summary of the invention
In view of the deficiency of background technology, problem to be solved in the utility model is to provide a kind of drill point of drill bit that makes and can independently changes, replace the wearing and tearing because of drill point to bring whole drill bit to need to carry out changing the waste brought, technique is simple simultaneously, reduces the drill of production cost.
For this reason, a kind of drill that the utility model provides, comprise grip shank and drill point, described drill point is hollow tubular, it is characterized in that: described grip shank and drill point are detachable connection, and the bottom of described grip shank is provided with drill point installing hole, and be provided with external screw thread at bottom cylindrical, bottom cylindrical is also provided with longitudinal cut and penetrates into drill point installing hole, and described drill point is tightened up by nut after inserting drill point installing hole from the bottom of grip shank, and nut thread is screwed on external screw thread.
The top of described drill point installing hole is provided with the positioning step for drill point location.
The cylindrical of the retaining part of described grip shank is provided with cannelure.
In the utility model, grip shank and drill point have employed the detachable draw bail of split, and grip shank is all relative with the structure of drill point simple, and material also has different choice, thus make that the difficulty of processing of drill bit and grip shank diminishes, cost is also relatively low; The more important thing is, grip shank and drill point are Split type structure, only need change drill point, and not need whole drill bit to be changed, not only save, also reduce production cost after drill point wearing and tearing.Be performed such between grip shank and drill point and be connected and fixed: after in drill point installing hole drill point being inserted grip shank, by tightening nut, the diameter of bore of drill point installing hole is diminished and drill point is fixed.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the right view of Fig. 1.
Detailed description of the invention
As shown in the figure, drill of the present utility model, comprise grip shank 1 and drill point 2, described drill point 2 is in hollow tubular, described grip shank 1 connects for detachable with drill point 2, the bottom of described grip shank 1 is provided with drill point installing hole 3, and be provided with external screw thread 4 at bottom cylindrical, bottom cylindrical is also provided with longitudinal cut 5 and penetrates into drill point installing hole 3, described drill point 2 is tightened up by nut 6 after inserting drill point installing hole 3 from the bottom of grip shank 1, nut 6 screw thread is screwed on external screw thread 4, the top of described drill point installing hole 3 is provided with the positioning step 7 of locating for drill point 2, the cylindrical of the retaining part of described grip shank 1 is provided with cannelure 8.
Claims (3)
1. a drill, comprise grip shank and drill point, described drill point is hollow tubular, it is characterized in that: described grip shank and drill point are detachable connection, the bottom of described grip shank is provided with drill point installing hole, and is provided with external screw thread at bottom cylindrical, and bottom cylindrical is also provided with longitudinal cut and penetrates into drill point installing hole, described drill point is tightened up by nut after inserting drill point installing hole from the bottom of grip shank, and nut thread is screwed on external screw thread.
2. a kind of drill according to claim 1, is characterized in that: the top of described drill point installing hole is provided with the positioning step for drill point location.
3. a kind of drill according to claim 1, is characterized in that: the cylindrical of the retaining part of described grip shank is provided with cannelure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420786821.8U CN204322178U (en) | 2014-12-15 | 2014-12-15 | A kind of drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420786821.8U CN204322178U (en) | 2014-12-15 | 2014-12-15 | A kind of drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204322178U true CN204322178U (en) | 2015-05-13 |
Family
ID=53158579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420786821.8U Expired - Fee Related CN204322178U (en) | 2014-12-15 | 2014-12-15 | A kind of drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204322178U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109600927A (en) * | 2019-01-03 | 2019-04-09 | 六安煜晟电子科技有限公司 | A kind of novel PCB drill point steel handle |
-
2014
- 2014-12-15 CN CN201420786821.8U patent/CN204322178U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109600927A (en) * | 2019-01-03 | 2019-04-09 | 六安煜晟电子科技有限公司 | A kind of novel PCB drill point steel handle |
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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: 20150513 Termination date: 20191215 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |