CN201720500U - Machining cutter for drilling small-diameter and flat-bottom blind hole - Google Patents
Machining cutter for drilling small-diameter and flat-bottom blind hole Download PDFInfo
- Publication number
- CN201720500U CN201720500U CN2010202658520U CN201020265852U CN201720500U CN 201720500 U CN201720500 U CN 201720500U CN 2010202658520 U CN2010202658520 U CN 2010202658520U CN 201020265852 U CN201020265852 U CN 201020265852U CN 201720500 U CN201720500 U CN 201720500U
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- blind hole
- cutting edge
- flat
- cutting head
- cutting
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Abstract
The utility model provides a machining cutter for drilling a small-diameter and flat-bottom blind hole. The machining cutter comprises a cutting head and a cutter handle, wherein the cutter handle is made from a common steel component, the end of the cutter handle is welded with the cutting head, the cutting head adopts a metal cutter material component and is a cone table which is provided with an end head with slightly larger diameter, the end face of the cutting head is provided with four symmetrical cutting edges, the front angles of the cutting edges are 5-8 degrees, the back angles of the cutting edges are 10-12 degrees, the cylindrical surfaces of the cone table which corresponds to each cutting edge are respectively provided with a U-shaped groove. The machining cutter is simple in structure, and can meet the requirement for machining the small-diameter and flat-bottom blind hole.
Description
Technical field
The utility model relates to drilling tool, is specially a kind of process tool that is used to bore the flat blind hole of system minor diameter.
Background technology
Because special structural requirement, often need on metal parts, process flat blind hole, the structure of flat blind hole is as shown in Figure 1; Flat blind hole processing can not be adopted conventional boring processing, because only the next point end is stayed in the boring meeting in the bottom in hole, as shown in Figure 2; So when the diameter of hole D was big, the processing technology that adopts was first boring, reaming more usually, promptly need the boring cutter bore hole to eliminate the point end, the boring cutter structure is as shown in Figure 3.If but the diameter of hole D hour, bore hole processing is subjected to the restriction of boring cutter cutter structure, and the Tool in Cutting part can't enter in the hole cuts, and therefore causes the flat blind hole of minor diameter no small difficulty to be arranged adding man-hour.
The utility model content
The technical problem that the utility model solved is to provide a kind of process tool that is used to bore the flat blind hole of system minor diameter, to solve the shortcoming in the above-mentioned background technology.
The technical problem that the utility model solved realizes by the following technical solutions:
A kind of process tool that is used to bore the flat blind hole of system minor diameter, comprise cutting head and handle of a knife two parts composition, described handle of a knife adopts the ordinary steel member, according to the different corresponding standard Knife handle structures that adopt of the specification of using lathe, the terminal welding of handle of a knife cutting head, described cutting head is the metal cutting tool material members, adopt the frustum of a cone of termination slightly larger in diameter, end face is provided with the cutting edge of four symmetries, the anterior angle of described cutting edge is 5 °～8 °, relief angle is 10 °～12 °, offers a U-lag with every the corresponding frustum of a cone of cutting edge face of cylinder.
In the utility model, described metal cutting tool material members is the cutting member that comprises that the material of high-speed steel, carbide alloy etc. is made.
In the utility model, the described frustum of a cone adopts 0.4 °～0.6 ° inclination angle.
In the utility model, described cutting edge is straight sword or arcuate blade.
In the utility model, described cutting edge can be offered chip dividing groove.
Beneficial effect: the utility model is simple in structure, can satisfy the process requirements of the flat blind hole of minor diameter.
Description of drawings
Fig. 1 is flat blind hole structure schematic diagram
Fig. 2 is a blind hole of utilizing common bit drills system
Fig. 3 is common boring cutter structural representation
Fig. 4 is the utility model structural representation
Fig. 5 is specific embodiment 1 a cutting head end face structure schematic diagram
Fig. 6 is specific embodiment 2 cutting head end face structure schematic diagrames
Fig. 7 is the local enlarged diagram of cutting blade structure
The specific embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
Referring to Fig. 4, a kind of process tool that is used to bore the flat blind hole of system minor diameter, comprise cutting head 1 and handle of a knife 2 two parts composition, described handle of a knife 2 adopts the ordinary steel member, according to the different corresponding standard Knife handle structures that adopt of the specification of using lathe, handle of a knife 2 terminal welding cutting head 1, described cutting head 1 is the metal cutting tool material members, adopt the frustum of a cone of termination slightly larger in diameter, the tilt angle gamma of the frustum of a cone is 0.5 °, end face is provided with the cutting edge 3 of four symmetries, offers a U-lag 4 with every cutting edge 3 corresponding frustum of a cone faces of cylinder; Referring to Fig. 7, the anterior angle α of cutting edge 3 is 6 °, and relief angle β is 10 °.
Fig. 5, Fig. 6 are respectively specific embodiment 1 and specifically implement 2 cutting head end face structure schematic diagram, both are in difference, the cutting edge of specific embodiment 1 cutting head end face shown in Figure 5 has adopted straight sword 3a, do not offer chip dividing groove, the cutting edge of specific embodiment 2 cutting head end faces shown in Figure 6 has adopted arcuate blade 3b, offers chip dividing groove 5.
More than show and described basic principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (4)
1. one kind is used to bore the process tool of making the flat blind hole of minor diameter, comprise cutting head and handle of a knife two parts composition, it is characterized in that described handle of a knife adopts the ordinary steel member, the terminal welding of handle of a knife cutting head, described cutting head adopts the metal cutting tool material members, be the frustum of a cone of termination slightly larger in diameter, end face is provided with the cutting edge of four symmetries, and the anterior angle of described cutting edge is 5 °～8 °, relief angle is 10 °～12 °, offers a U-lag with every the corresponding frustum of a cone of cutting edge face of cylinder.
2. a kind of process tool that is used to bore the flat blind hole of system minor diameter according to claim 1 is characterized in that the described frustum of a cone adopts 0.4 °～0.6 ° inclination angle.
3. a kind of process tool that is used to bore the flat blind hole of system minor diameter according to claim 1 is characterized in that described cutting edge is straight sword or arcuate blade.
4. a kind of process tool that is used to bore the flat blind hole of system minor diameter according to claim 1 is characterized in that described cutting edge can be offered chip dividing groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202658520U CN201720500U (en) | 2010-07-21 | 2010-07-21 | Machining cutter for drilling small-diameter and flat-bottom blind hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202658520U CN201720500U (en) | 2010-07-21 | 2010-07-21 | Machining cutter for drilling small-diameter and flat-bottom blind hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201720500U true CN201720500U (en) | 2011-01-26 |
Family
ID=43488784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202658520U Expired - Fee Related CN201720500U (en) | 2010-07-21 | 2010-07-21 | Machining cutter for drilling small-diameter and flat-bottom blind hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201720500U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102717128A (en) * | 2012-06-07 | 2012-10-10 | 江苏天工工具有限公司 | Novel flat-bottom hole drill |
| CN103042258A (en) * | 2013-01-23 | 2013-04-17 | 青岛双瑞海洋环境工程股份有限公司 | Novel flat-bottom arc drill bit |
-
2010
- 2010-07-21 CN CN2010202658520U patent/CN201720500U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102717128A (en) * | 2012-06-07 | 2012-10-10 | 江苏天工工具有限公司 | Novel flat-bottom hole drill |
| CN103042258A (en) * | 2013-01-23 | 2013-04-17 | 青岛双瑞海洋环境工程股份有限公司 | Novel flat-bottom arc drill bit |
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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: 20110126 Termination date: 20110721 |