CN202571411U - Combined drill bit - Google Patents
Combined drill bit Download PDFInfo
- Publication number
- CN202571411U CN202571411U CN 201220031354 CN201220031354U CN202571411U CN 202571411 U CN202571411 U CN 202571411U CN 201220031354 CN201220031354 CN 201220031354 CN 201220031354 U CN201220031354 U CN 201220031354U CN 202571411 U CN202571411 U CN 202571411U
- Authority
- CN
- China
- Prior art keywords
- tool rest
- cutter head
- knife
- drill bit
- wall
- 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
The utility model discloses a combined drill bit. The combined drill bit comprises a knife holder, a knife handle and a knife head, wherein the knife head is screwed at the front part of the knife seat; and a bolt screwed into a bolt hole in the knife seat after penetrating through the knife head is arranged in a sinking groove in the knife head. The combined drill bit is simple in structure and easy to realize; and when the knife head is damaged, the knife head can be taken down from the knife seat after the bolt is removed, so that time and labor as well as material cost are saved.
Description
Technical field
The utility model relates to machinery and uses the drill bit field, is specially a kind of combined drill.
Background technology
Mechanical part commonly used in the drill bit machinery industry, it is to go out through hole or blind hole in order to drilling on the 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 mostly cutter head is to be shaped to one with tool rest in the drill bit of prior art, because cutter head often damages, needs the integral replacing drill bit, causes unnecessary waste.
The utility model content
The utility model purpose provides a kind of combined drill, to solve the problem that the prior art cutter head damages needs the integral replacing drill bit.
In order to achieve the above object, the technical scheme that the utility model adopted is:
A kind of combined drill; Include tool rest, be connected the tool rest rear end handle of a knife, be connected the anterior cutter head of tool rest, it is characterized in that: said tool rest outer wall forms external screw thread, and the tool rest outer wall radially is provided with a plurality of bolts hole in tool rest; Said cutter head front end is shaped to point of a knife; The cutter head rear inside wall has internal thread hole, and cutter head rear portion outer wall is provided with a plurality of deep gouges, and said cutter head is screwed on the tool rest front portion; The deep gouge position is corresponding one by one with the bolt hole position on the tool rest in the cutter head, and is provided with in the outer wall deep gouge of cutter head rear portion and passes cutter head and be screwed into the bolt in the tool rest bolt hole.
The utility model is simple in structure, is easy to realize.Cutter head is screwed on the tool rest front portion; Occur in order to prevent to use loosening between cutter head and the tool rest; Through being arranged in the cutter head deep gouge and the bolt that is screwed in the tool rest screwed hole is fixed; Can cutter head be taken off from tool rest after removing bolt when cutter head damages like this, time saving and energy saving, practiced thrift cost of material.
Description of drawings
Fig. 1 is the structural representation of the utility model.
The specific embodiment
As shown in Figure 1.A kind of combined drill; Include tool rest 1, be connected tool rest 1 rear end handle of a knife 2, be connected the anterior cutter head 3 of tool rest 1, tool rest 1 outer wall forms external screw thread, and tool rest 1 outer wall radially is provided with a plurality of bolts hole in tool rest 1; Cutter head 3 front ends 4 are shaped to point of a knife; Cutter head 3 rear portions 5 inwalls have internal thread hole, and cutter head 3 rear portions 5 outer walls are provided with a plurality of deep gouges 6, and cutter head 3 is screwed on tool rest 1 front portion; Deep gouge 6 positions are corresponding one by one with the bolt hole position on the tool rest 1 in the cutter head 3, and are provided with in the 5 outer wall deep gouges 6 of cutter head 3 rear portions and pass cutter head 3 and be screwed into the bolt 7 in tool rest 1 bolt hole.
Claims (1)
1. combined drill; Include tool rest, be connected the tool rest rear end handle of a knife, be connected the anterior cutter head of tool rest, it is characterized in that: said tool rest outer wall forms external screw thread, and the tool rest outer wall radially is provided with a plurality of bolts hole in tool rest; Said cutter head front end is shaped to point of a knife; The cutter head rear inside wall has internal thread hole, and cutter head rear portion outer wall is provided with a plurality of deep gouges, and said cutter head is screwed on the tool rest front portion; The deep gouge position is corresponding one by one with the bolt hole position on the tool rest in the cutter head, and is provided with in the outer wall deep gouge of cutter head rear portion and passes cutter head and be screwed into the bolt in the tool rest bolt hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220031354 CN202571411U (en) | 2012-02-01 | 2012-02-01 | Combined drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220031354 CN202571411U (en) | 2012-02-01 | 2012-02-01 | Combined drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202571411U true CN202571411U (en) | 2012-12-05 |
Family
ID=47240863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220031354 Expired - Fee Related CN202571411U (en) | 2012-02-01 | 2012-02-01 | Combined drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202571411U (en) |
-
2012
- 2012-02-01 CN CN 201220031354 patent/CN202571411U/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 |
Granted publication date: 20121205 Termination date: 20130201 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |