CN2806004Y - Spiral drill bit - Google Patents
Spiral drill bit Download PDFInfo
- Publication number
- CN2806004Y CN2806004Y CN 200420150354 CN200420150354U CN2806004Y CN 2806004 Y CN2806004 Y CN 2806004Y CN 200420150354 CN200420150354 CN 200420150354 CN 200420150354 U CN200420150354 U CN 200420150354U CN 2806004 Y CN2806004 Y CN 2806004Y
- Authority
- CN
- China
- Prior art keywords
- cutter head
- cutting edge
- cutting
- cutter hub
- spiral
- 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
Links
Images
Landscapes
- Drilling Tools (AREA)
Abstract
The utility model relates to a spiral drill bit which has the advantages of good centering effect, easy and fast cutting, and smooth hole wall. The utility model comprises a cutter body and a cutter head, wherein the cutter body has a spiral groove, the cutter head is arranged on the end portion of the spiral groove, and the cutting portion of the cutter head comprises two symmetrical cutting edges and two symmetrical secondary cutting edges. The utility model is characterized in that the two symmetrical cutting edges are connected by a drill core, the center portions of the two cutting edges which are connected with each other form S shape, both sides of the two cutting edges form a straight line shape, and the edges of the cutting edges are chamfering edges.
Description
(1) technical field
The utility model relates to machining tool, is specially spiral bit.
(2) background technology
Existing spiral bit comprises cutter hub and cutter head, on the described cutter hub spiral goove is arranged, and its cutting tip of described cutter head comprises the cutting edge of two symmetries, and the front cutting edge of two symmetries is a chisel edge between the cutting edge of two symmetries.The shortcoming of this spiral bit is exactly that the existence of chisel edge makes that the processing centering precision is poor, the size instability, and its hole wall of the hole that gets out is coarse, needs the road, back carry out the reaming fraising.In order to improve machining accuracy, need chisel edge is carried out reconditioning before each processing, the intensity of chisel edge then reduces greatly like this, and the working (machining) efficiency of drill bit is low, service life is shorter.
(3) summary of the invention
Poor at existing spiral bit processing centering, the hole dimension instability of processing, hole wall is coarse and working (machining) efficiency is low, the shortcoming that the service life of drill bit is short, the utility model provides another spiral bit, and it is felt relieved, cut briskly, its hole wall of the hole that gets out is smooth.
The technical solution of the utility model is like this: it comprises cutter hub, cutter head, on the described cutter hub spiral goove is arranged, end in described spiral goove, the cutting tip of described cutter head comprises the cutting edge of two symmetries, the front cutting edge of two symmetries, it is characterized in that: the cutting edge of described two symmetries connects by boring core, and the centre of two cutting edges that are connected becomes S shape, both sides to be respectively linear, and the cutting edge of described cutting edge is the chamfered edge sword.
It is further characterized in that: have the cooling duct at described drill bit internal, the import in described cooling duct is positioned at the end of described cutter hub away from cutter head one end, described cooling duct connects Zhi Kongdao, and the outlet of described Zhi Kongdao lays respectively at the minor flank of described cutter head; Described cutter head is embedded in described cutter hub, and the material of described cutter head is a carbide alloy; The material of described cutter hub is senior superior alloy steel; Described spiral bit outer surface is a composite coating; The material of described composite coating is TiAlN.
The utility model adopts after the said structure, because the centre of its cutting edge of cutting edge that is connected is a S shape, both sides are linear, the intensity height of whole cutting edge, the anti-damaged performance of centre s shape cutting edge improves greatly, because cutting edge is the chamfered edge sword, cutting edge is difficult for collapsing when boring sky, so the service life of drill bit is longer, because no chisel edge, feel relieved in the center of apex point, and the hole dimension of processing is stable, hole wall is more smooth, and after the cooling duct of drill bit internal passed to cooling water, the heat that can in time drill bit be produced because of working long hours was taken away, and had guaranteed that further smooth the and drill bit of the hole wall of being processed has long service life.
(4) description of drawings
Fig. 1 is a front view of the present utility model;
Fig. 2 is a vertical view of the present utility model;
Fig. 3 is a left view of the present utility model;
Fig. 4 is a right view of the present utility model.
(5) specific embodiment
Be described in detail below in conjunction with 1,2,3,4 pairs of the utility model of accompanying drawing.
See Fig. 1, Fig. 2, Fig. 3, Fig. 4, the utility model comprises cutter hub, cutter head, spiral goove 3 is arranged on the cutter hub, end in spiral goove 3, the cutting tip of cutter head comprises that the cutting edge 1 of 2, two symmetries of front cutting edge of 1, two symmetry of cutting edge of two symmetries connects by boring core, the centre of two cutting edges that are connected becomes S shape, both sides to be respectively linear, and the cutting edge of cutting edge 1 is the chamfered edge sword.Have cooling duct 6 at drill bit internal, the import in cooling duct 6 is positioned at the end of cutter hub away from cutter head one end, and the cooling duct connects Zhi Kongdao 4, and the outlet of Zhi Kongdao 4 lays respectively at the minor flank of cutter head 5; Cutter head 5 is embedded in cutter hub, and the material of cutter head 5 is a carbide alloy; The material of cutter hub is senior superior alloy steel; The spiral bit outer surface is a composite coating; The material of composite coating is TiAlN.The utility model adopts after the said structure, and its drilling efficiency is higher, and cutting linear velocity can reach 75-80m/min, amount of feeding 324-360, and the Hole Wall Roughness 2.5 of a sharpening 20m above (drilling length), the dimensionally stable of processing does not need following process.
Claims (6)
1. fluted drill, it comprises cutter hub, cutter head, on the described cutter hub spiral goove is arranged, end in described spiral goove, the cutting tip of described cutter head comprises the cutting edge of two symmetries, and the front cutting edge of two symmetries is characterized in that: the cutting edge of described two symmetries connects by boring core, the centre of two cutting edges that are connected becomes S shape, both sides to be respectively linear, and the cutting edge of described cutting edge is the chamfered edge sword.
2. according to the described spiral bit of claim 1, it is characterized in that: have the cooling duct at described drill bit internal, the import in described cooling duct is positioned at the end of described cutter hub away from cutter head one end, described cooling duct connects Zhi Kongdao, and the outlet of described Zhi Kongdao lays respectively at the minor flank of described cutter head.
3. according to the described spiral bit of claim 1, it is characterized in that: described cutter head is embedded in described cutter hub, and the material of described cutter head is a carbide alloy.
4. according to the described spiral bit of claim 1, it is characterized in that: the material of described cutter hub is senior superior alloy steel.
5. according to the described spiral bit of claim 1, it is characterized in that: described spiral bit outer surface is a composite coating.
6. according to the described spiral bit of claim 5, it is characterized in that: the material of described composite coating is TiAlN.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420150354 CN2806004Y (en) | 2004-08-04 | 2004-08-04 | Spiral drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420150354 CN2806004Y (en) | 2004-08-04 | 2004-08-04 | Spiral drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2806004Y true CN2806004Y (en) | 2006-08-16 |
Family
ID=36920307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420150354 Expired - Fee Related CN2806004Y (en) | 2004-08-04 | 2004-08-04 | Spiral drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2806004Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010075773A1 (en) * | 2008-12-31 | 2010-07-08 | 东莞市微创工具科技有限公司 | Method for manufacturing grinding-free drill bit and drill bit |
| CN103157833A (en) * | 2013-03-15 | 2013-06-19 | 中国航天科技集团公司烽火机械厂 | Longhole double-spiral inner-cooling drill bit |
| CN103567507A (en) * | 2013-07-16 | 2014-02-12 | 昆山巨德泰精密机械有限公司 | Drill bit with radiating hole in blade part |
| CN105436578A (en) * | 2015-12-18 | 2016-03-30 | 株洲钻石切削刀具股份有限公司 | Drilling cutting tool |
| CN105642972A (en) * | 2016-04-12 | 2016-06-08 | 山东大学 | Drilling-reaming-dimpling integrated cutting tool |
| CN111347087A (en) * | 2020-03-30 | 2020-06-30 | 吉林省恒丰数控工具有限公司 | Drill bit with automatic chip removal function |
-
2004
- 2004-08-04 CN CN 200420150354 patent/CN2806004Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010075773A1 (en) * | 2008-12-31 | 2010-07-08 | 东莞市微创工具科技有限公司 | Method for manufacturing grinding-free drill bit and drill bit |
| CN103157833A (en) * | 2013-03-15 | 2013-06-19 | 中国航天科技集团公司烽火机械厂 | Longhole double-spiral inner-cooling drill bit |
| CN103157833B (en) * | 2013-03-15 | 2016-03-23 | 中国航天科技集团公司烽火机械厂 | Cold drill bit in deep hole double helix |
| CN103567507A (en) * | 2013-07-16 | 2014-02-12 | 昆山巨德泰精密机械有限公司 | Drill bit with radiating hole in blade part |
| CN105436578A (en) * | 2015-12-18 | 2016-03-30 | 株洲钻石切削刀具股份有限公司 | Drilling cutting tool |
| CN105642972A (en) * | 2016-04-12 | 2016-06-08 | 山东大学 | Drilling-reaming-dimpling integrated cutting tool |
| CN111347087A (en) * | 2020-03-30 | 2020-06-30 | 吉林省恒丰数控工具有限公司 | Drill bit with automatic chip removal function |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1925386B1 (en) | Drill bit with high performance for chip removal | |
| CN203140810U (en) | Indexable chamfer milling and boring compound tool | |
| CN202861476U (en) | High-efficiency high-precision deep hole drill | |
| CN2806004Y (en) | Spiral drill bit | |
| CN203621579U (en) | Efficient drilling and reaming compound tool with guide function | |
| CN206869180U (en) | Cold patch welding type entirety glomerocryst PCD bit drills in one kind | |
| CN2481440Y (en) | Strong hard alloy drill | |
| CN2438535Y (en) | Clamp type group edge drilling bit | |
| CN211387075U (en) | Efficient three-blade broaching tool capable of performing intermittent machining | |
| CN102266985A (en) | Reamer | |
| CN202155611U (en) | Reamer | |
| CN201320625Y (en) | Spiral drill reamer | |
| CN211889148U (en) | Ultra-long hard alloy deep hole twist drill for deep hole machining | |
| CN2734391Y (en) | Single-edge reamer | |
| CN205733143U (en) | A kind of three traverse drill reaming step drill | |
| CN207952723U (en) | A kind of four land thin-walled composite drill bit of two-edged | |
| CN110919058A (en) | Efficient three-blade broaching tool capable of performing intermittent machining | |
| CN202622070U (en) | Internal cooling composite reamer | |
| CN202356686U (en) | Left-handed straight shank twist drill with three edges | |
| CN203281948U (en) | Taper hole drilling and reaming tool for machining of plate parts | |
| CN2810830Y (en) | Gun drill with hole expansion function | |
| CN206286613U (en) | A kind of crown-shaped Multifunctional drills of W | |
| CN2796913Y (en) | Screw type shaping diamond reamer | |
| CN106563839A (en) | Three-slot reaming step drill | |
| CN216990021U (en) | Integral hard alloy deep hole drill bit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |