CN201720502U - Hard alloy compound drill bit - Google Patents
Hard alloy compound drill bit Download PDFInfo
- Publication number
- CN201720502U CN201720502U CN2010202359904U CN201020235990U CN201720502U CN 201720502 U CN201720502 U CN 201720502U CN 2010202359904 U CN2010202359904 U CN 2010202359904U CN 201020235990 U CN201020235990 U CN 201020235990U CN 201720502 U CN201720502 U CN 201720502U
- Authority
- CN
- China
- Prior art keywords
- drill bit
- cutting head
- hard alloy
- neck
- alloy compound
- 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 - Lifetime
Links
Abstract
The utility model discloses a hard alloy compound drill bit, which solves the technical problems of high manufacturing cost and low production efficiency existing when the bolt hole is required to be rounded off or chambered by two steps on the numeric control upright driller or the machining center. The hard alloy compound drill bit comprises a drill bit handle (1), a cylindrical drill bit neck (2) and a cutting head (4), the diameter of the cross section circle of the cylindrical drill bit neck (2) is larger than that of the cutting head (4), and the cutting head (4) is fixedly connected with the cylindrical drill bit neck (2) through a cone (3). The tip angle of the cone (3) is 90 degrees. The hard alloy compound drill bit is used for accomplishing drilling and rounding off or chambering once on the numeric control upright driller or the machining center, thereby saving the production cost and improving the production efficiency.
Description
Technical field
The utility model relates to a kind of new drill, particularly a kind of processing work is holed and the drill bit on the rank of falling from power simultaneously.
Background technology
At present, when machined brake drum, wheel hub, spoke wheel product, bored and also require behind the bolt hole to fall from power or chamfered, purpose is to remove the burr of bolt hole periphery, is convenient to assembling.Existing production technology is finished this and required to need for two steps: the first step is to use carbide drill to carry out the auger shell keyhole; Second step was to adopt large diameter drill bit to fall from power or chamfer machining.Enhance productivity thereby cause, increase technical problems such as production cost.
Summary of the invention
The carbide alloy composite drill bit that the utility model provides has solved NC vertical drilling machine or machining center and need fall from power or needed for two steps finish the high and low technical problem of production efficiency of existing production cost during chamfering the bolt hole oral area in processing.
The utility model overcomes the above problems by following scheme:
The carbide alloy composite drill bit, comprise drill handle part, columniform drill bit neck, cutting head, the cross section diameter of a circle of columniform drill bit neck is greater than the cross section diameter of a circle of cutting head, cutting head and columniform drill bit neck are fixed together by cone, and the circular cone drift angle of cone is 90 degree.
The utility model is used for the general NC upright drill or machining center will be holed and fall from power or chamfering processes at one time, and has saved production cost, has improved production efficiency.
Description of drawings:
Fig. 1 is a structural representation of the present utility model
The specific embodiment
The structure of carbide alloy composite drill bit is made up of four parts; Drill handle part 1, columniform drill bit neck 2, circular cone drift angle 3 and cutting head 4.Be provided with cone 3 in cylinder bur Head and Neck 2 fronts, the circular cone drift angle is 90 degree, and the cross section diameter of a circle of cylinder bur Head and Neck 2 is greater than the cross section diameter of a circle of cutting head 4.
Claims (2)
1. carbide alloy composite drill bit, comprise drill handle part (1), columniform drill bit neck (2), cutting head (4), it is characterized in that, the cross section diameter of a circle of columniform drill bit neck (2) is greater than the cross section diameter of a circle of cutting head (4), and cutting head (4) is to be fixed together by cone (3) with columniform drill bit neck (2).
2. a kind of carbide alloy composite drill bit according to claim 1 is characterized in that, the circular cone drift angle of described cone (3) is 90 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202359904U CN201720502U (en) | 2010-06-24 | 2010-06-24 | Hard alloy compound drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202359904U CN201720502U (en) | 2010-06-24 | 2010-06-24 | Hard alloy compound drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201720502U true CN201720502U (en) | 2011-01-26 |
Family
ID=43488786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202359904U Expired - Lifetime CN201720502U (en) | 2010-06-24 | 2010-06-24 | Hard alloy compound drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201720502U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103273122A (en) * | 2013-06-14 | 2013-09-04 | 昆山昊凯金属制品有限公司 | Chambering drill bit |
-
2010
- 2010-06-24 CN CN2010202359904U patent/CN201720502U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103273122A (en) * | 2013-06-14 | 2013-09-04 | 昆山昊凯金属制品有限公司 | Chambering drill bit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110126 |
|
| CX01 | Expiry of patent term |