CN2900052Y - Novel hexagonal handle drill - Google Patents
Novel hexagonal handle drill Download PDFInfo
- Publication number
- CN2900052Y CN2900052Y CN 200620072794 CN200620072794U CN2900052Y CN 2900052 Y CN2900052 Y CN 2900052Y CN 200620072794 CN200620072794 CN 200620072794 CN 200620072794 U CN200620072794 U CN 200620072794U CN 2900052 Y CN2900052 Y CN 2900052Y
- Authority
- CN
- China
- Prior art keywords
- drill
- drill bit
- utility
- model
- shank
- 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
A hexagon shank drill belonging to metal cutting and processing tools is provided, in particular to a quick assemble and unassembled drill. The utility model is characterized in that: transverse notches are provided in the six edges of a shank. The drill of the utility model suits to a quick change drill chuck locating drill by a clamping spring. Due to the improvement of an orientation notches, the axial force is given to the bottom of the drill instead of the notch, so the design has a fine drilling performance. Less dimension of the notch can enhances the stiffness of the whole drill and quickens the drill changing process; addition to, drill made of this design can also be applied to ordinary drill chuck.
Description
Technical field
The utility model relates to the metal cutting machining tool, relates in particular to a kind of drill bit of quick loading and unloading.
Background technology
Present drill bit clamping handle, its cross sectional shape generally are the triangles of circle, hexagon, square or band chamfering.During use, common and common spanner three-jaw drill chuck is used, and spanner three-jaw drill chuck is to drive a nut rotation by rotary spanner, makes jaw clamp drill bit.When needs were frequently changed the different size drill bit, each dismounting all will expend the plenty of time, manpower, and operating efficiency is very low.A kind of quick-clamping head has solved above problem, and its principle mainly is by the location of positioning bead realization to drill bit, offers an arc groove on the handle of drill bit, is used to cooperate above-mentioned positioning bead.But because the standardization level that fluted drill is produced is low, through regular meeting the insecure problem in location appears at present general quick-clamping head, the phenomenon that causes drill bit to get loose, skid, and this kind groove can reduce the intensity of drill bit.
Summary of the invention
At above problem, the utility model provides a kind of fast replacing drill chuck that is applicable to by the jump ring location, and the high novel hexagonal-handle twist drill head of drill bit intensity.
The technical solution of the utility model is: be respectively equipped with transverse concave groove on six corner angle of clamping handle.
Described transverse concave groove axis normal is in drill axis, and is on the same circumference.
Drill bit of the present utility model is fit to a kind of fast replacing drill chuck by the jump ring location, and locating slot is improved, and groove does not bear axial force substantially, and bears axial force by the low end face of drill bit, and drilling is effective; The small size of locating slot has increased the bulk strength of drill bit, and change convenient; Hexagonal-handle twist drill head of the present utility model in addition can also use on common drill chuck.
Description of drawings
Fig. 1 is a structural representation of the present utility model
1 is drill bit among the figure, the 2nd, and shank, the 3rd, groove.
Fig. 2 is an A-A view among Fig. 1
Fig. 3 is a B place partial enlarged drawing among Fig. 1
The specific embodiment
On six corner angle of the clamping shank 2 of drill bit 1, be respectively equipped with transverse concave groove 3.The axis normal of transverse concave groove 3 is in the axis of drill bit 1, and is on the same circumference.
Six transverse concave grooves 3 on same annular space curved surface, the curved surface of each transverse concave groove 3 only and two adjacent planes of hexagonal shank 2 crossing, form two intersecting lenses, intersecting lens is a curve, the intersection point of two intersecting lenses is on the rib of hexagonal.
Claims (2)
1, a kind of novel hexagonal handle drill bit is characterized in that, is respectively equipped with transverse concave groove on six corner angle of clamping handle.
2, a kind of novel hexagonal handle drill bit according to claim 1 is characterized in that, described transverse concave groove axis normal is in drill axis, and is on the same circumference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620072794 CN2900052Y (en) | 2006-04-26 | 2006-04-26 | Novel hexagonal handle drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620072794 CN2900052Y (en) | 2006-04-26 | 2006-04-26 | Novel hexagonal handle drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2900052Y true CN2900052Y (en) | 2007-05-16 |
Family
ID=38084218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620072794 Expired - Fee Related CN2900052Y (en) | 2006-04-26 | 2006-04-26 | Novel hexagonal handle drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2900052Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103286355A (en) * | 2013-06-18 | 2013-09-11 | 李国军 | Drill with prismatic handle |
-
2006
- 2006-04-26 CN CN 200620072794 patent/CN2900052Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103286355A (en) * | 2013-06-18 | 2013-09-11 | 李国军 | Drill with prismatic handle |
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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: 20070516 Termination date: 20100426 |