CN203711946U - Drill bit with auxiliary cutter - Google Patents
Drill bit with auxiliary cutter Download PDFInfo
- Publication number
- CN203711946U CN203711946U CN201320859056.3U CN201320859056U CN203711946U CN 203711946 U CN203711946 U CN 203711946U CN 201320859056 U CN201320859056 U CN 201320859056U CN 203711946 U CN203711946 U CN 203711946U
- Authority
- CN
- China
- Prior art keywords
- drill bit
- cutter
- positioning
- auxiliary
- plane
- 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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- Earth Drilling (AREA)
Abstract
The utility model discloses a drill bit with an auxiliary cutter. The drill bit with the auxiliary cutter comprises a drill bit, wherein a circle cutter is fixedly arranged on the outer wall of the upper end of the drill bit, the circle cutter and the drill bit are fixedly mounted on a handle, the circle cutter consists of a plurality of uniformly-distributed cutting edges, a plane is arranged on the sharp end of the drill bit, a square hole is formed in the plane, a spring is fixedly arranged at the inner bottom of the square hole, the outer end of the spring is connected to a positioning rod, a flat positioning cutter is arranged at the lower end of the positioning rod, and the positioning rod is connected with the positioning cutter through a magnet. The drill bit with the auxiliary cutter has a simple structure and is easy to implement, the elastic auxiliary positioning cutter is arranged on the tool bit to play the role of pre-positioning, the drill bit is effectively prevented from being shifted and damaged, meanwhile, burrs at an opening can be removed while drilling, and the application range of the drill bit is expanded.
Description
technical field:
The utility model relates to mechanical drill field, and concrete is a kind of drill bit with auxiliary cutter.
background technology:
Conventional mechanical part in drill bit machinery industry, it is to go out through hole or blind hole in order to drilling on solid material, and can be to the cutter of existing hole reaming.Drill bit is made up of tool rest, handle of a knife, cutter head, and the drill bit structure of prior art is simple, for the larger material of hardness, holes limited in one's ability.
utility model content:
The purpose of this utility model is to provide a kind of drill bit with auxiliary cutter, to solve existing drill bit, the problems such as drill bit damage that cause easily occurs to be offset.
The technical solution adopted in the utility model is:
With the drill bit of auxiliary cutter, comprise drill bit, it is characterized in that: on the upper end outer wall of described drill bit, be fixed with circular cutter, circular cutter and drill bit are fixedly installed on handle of a knife, and circular cutter is several equally distributed edge of a knife compositions, and the sharp end of drill bit is provided with plane, and in plane, have square hole, square hole inner bottom part is fixed with spring, and the outer end of spring is connected on backstay, and the lower end of backstay is provided with flat knife edge.
The described drill bit with auxiliary cutter, is characterized in that: described backstay is connected by magnet with knife edge.
Compared with prior art, the beneficial effects of the utility model are:
The utility model is simple in structure, be easy to realize, at cutter head, a flexible auxiliary positioning cutter is set, can utilize it to play pre-aligned effect, can effectively prevent the problem that drill bit is offset, damages, and in punching, the burr of eating dishes without rice or wine can be removed, expand the scope of application of drill bit.
brief description of the drawings:
Fig. 1 is the utility model structural representation.
detailed description of the invention:
Below in conjunction with accompanying drawing, by embodiment, the utility model is described in further detail:
With the drill bit of auxiliary cutter, comprise drill bit 1, on the upper end outer wall of drill bit 1, be fixed with circular cutter 2, circular cutter 2 and drill bit 1 are fixedly installed on handle of a knife 3, and circular cutter 2 is several equally distributed edge of a knife 2-1 compositions, the sharp end of drill bit 1 is provided with plane, and have square hole in plane, square hole inner bottom part is fixed with spring 4, the outer end of spring 4 is connected on backstay 5, the lower end of backstay 5 is provided with flat knife edge 6, and backstay 5 is connected by magnet with knife edge 6.
Above-described embodiment is only preferably embodiment of the present utility model, and in addition, the utility model can also have other implementations.It should be noted that, do not departing under the prerequisite of the utility model design, within any apparent improvement and modification all should fall into protection domain of the present utility model.
Claims (2)
1. the drill bit with auxiliary cutter, comprise drill bit, it is characterized in that: the upper end of described drill bit is installed with circular cutter, circular cutter and drill bit are fixedly installed on handle of a knife, and described circular cutter is several equally distributed edge of a knife compositions, and the sharp end of drill bit is provided with plane, and in plane, have square hole, square hole inner bottom part is fixed with spring, and the outer end of spring is connected on backstay, and the lower end of backstay is provided with flat knife edge.
2. the drill bit with auxiliary cutter according to claim 1, is characterized in that: described backstay is connected by magnet with knife edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320859056.3U CN203711946U (en) | 2013-12-24 | 2013-12-24 | Drill bit with auxiliary cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320859056.3U CN203711946U (en) | 2013-12-24 | 2013-12-24 | Drill bit with auxiliary cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203711946U true CN203711946U (en) | 2014-07-16 |
Family
ID=51151145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320859056.3U Expired - Fee Related CN203711946U (en) | 2013-12-24 | 2013-12-24 | Drill bit with auxiliary cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203711946U (en) |
-
2013
- 2013-12-24 CN CN201320859056.3U patent/CN203711946U/en not_active Expired - Fee Related
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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: 20140716 Termination date: 20161224 |