CN2822839Y - Composition type step drilling machine - Google Patents
Composition type step drilling machine Download PDFInfo
- Publication number
- CN2822839Y CN2822839Y CN 200520044148 CN200520044148U CN2822839Y CN 2822839 Y CN2822839 Y CN 2822839Y CN 200520044148 CN200520044148 CN 200520044148 CN 200520044148 U CN200520044148 U CN 200520044148U CN 2822839 Y CN2822839 Y CN 2822839Y
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- CN
- China
- Prior art keywords
- drill
- drill body
- utility
- model
- cone
- 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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- Drilling Tools (AREA)
Abstract
The utility model provides a step drill which has the advantages of wear resistance and long service life. The utility model comprises a drill body, a drill shank and a cutting edge body, wherein the drill body is in a shape of a cone, one or a plurality of chip flutes are arranged along the axial direction of the drill body, one surface of each flute forms a cutting edge which is lined with hard alloy, and steps with different diameters are arranged on the cone-shaped drill body to form the step drill. The utility model has the advantages of step-shaped drill bit, wear resistance and long service life, and the step drill can be used for machining thin plates and thin wall pipes which have different hole diameters.
Description
Technical field
The utility model relates to a kind of hole-machining drilling head that is used for thin plate, light-wall pipe.
Background technology
Step drill is widely used in the processing in thin plate, thin-walled hole, step drill bores the pagoda shape drill bit that rank are formed by one group of different-diameter by certain designing requirement, to one group of thin plate machining hole and chamfering that the aperture is different, need not change the drill bit of different-diameter, improved production efficiency greatly, still, step drill in the market all is to make with high speed steel material, wearing and tearing easily, drilling life of bit is short.
Summary of the invention
The purpose of this utility model provides the compound step drill of a kind of wear-resisting, the long service life that overcomes the high speed steel material defective, this ladder is drilled with drill body, drillstock is formed, drill body is a cone shape, is closed by two kinds of material edges to form, and is axial along this drill body, have one or several chip pocket, a face of groove forms blade, and studding with cemented carbide body on this blade face is main cutting edge, on the drill body of cone shape, make and meet machining condition and the different step of diameter, promptly constitute step drill.Also can not be shaped on step, and constitute taper bit.
The utility model has the advantages that step drill or taper bit can be used for thin plate, the light-wall pipe processing in different apertures, and be wear-resisting, long service life.
Description of drawings
Accompanying drawing 1 is the utility model step drill front view.
Accompanying drawing 2 is views of accompanying drawing 1 another side.
Accompanying drawing 3 is right views of accompanying drawing 1.
Accompanying drawing 4 is front views of taper bit.
Accompanying drawing 5 is views of accompanying drawing 4 another sides.
Accompanying drawing 6 is right views of accompanying drawing 4.
The specific embodiment
See also shown in the accompanying drawing 1,2,3, the utility model comprises drill body 2, drillstock 1, drill body 2 is a cone shape, and is axial along this drill body 2, has one or several chip pocket 5, a face of groove 5 forms blade, on this blade face, stud with cemented carbide body 3, on the drill body 2 of cone shape, make the different step of diameter 4, promptly constitute step drill, as shown in Figure 1.
See also shown in the accompanying drawing 4,5,6, along cone 2 vertically, have chip pocket 5, a face of groove 5 forms blade, on this blade face, studs with cemented carbide body 3, is not shaped on step 4 on the cone 2, promptly constitutes taper bit.
Claims (1)
1. compound step drill, comprise drill body, drillstock, it is characterized in that: drill body is a cone shape, is closed by two kinds of material edges to form, axial along this drill body, have one or several chip pocket, a face of groove studs with cemented carbide body under machining condition, on the drill body of cone shape, make the different step of diameter, constitute step drill, also can not be shaped on step, and constitute taper bit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520044148 CN2822839Y (en) | 2005-08-08 | 2005-08-08 | Composition type step drilling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520044148 CN2822839Y (en) | 2005-08-08 | 2005-08-08 | Composition type step drilling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2822839Y true CN2822839Y (en) | 2006-10-04 |
Family
ID=37031953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520044148 Expired - Fee Related CN2822839Y (en) | 2005-08-08 | 2005-08-08 | Composition type step drilling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2822839Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008092386A1 (en) * | 2007-01-29 | 2008-08-07 | Qi Zhang | Step drill with a spiral-form groove |
| CN102165860A (en) * | 2010-12-31 | 2011-08-31 | 杨健 | Drill bit used for grinding bamboo cattails |
| US9731358B2 (en) | 2013-06-06 | 2017-08-15 | Milwaukee Electric Tool Corporation | Step drill bit |
| US11273501B2 (en) | 2018-04-26 | 2022-03-15 | Milwaukee Electric Tool Corporation | Step drill bit |
-
2005
- 2005-08-08 CN CN 200520044148 patent/CN2822839Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008092386A1 (en) * | 2007-01-29 | 2008-08-07 | Qi Zhang | Step drill with a spiral-form groove |
| CN102165860A (en) * | 2010-12-31 | 2011-08-31 | 杨健 | Drill bit used for grinding bamboo cattails |
| CN102165860B (en) * | 2010-12-31 | 2013-09-18 | 杨健 | Drill bit used for grinding bamboo cattails |
| US9731358B2 (en) | 2013-06-06 | 2017-08-15 | Milwaukee Electric Tool Corporation | Step drill bit |
| US10252351B2 (en) | 2013-06-06 | 2019-04-09 | Milwaukee Electric Tool Corporation | Step drill bit |
| US10695845B2 (en) | 2013-06-06 | 2020-06-30 | Milwaukee Electric Tool Corporation | Step drill bit |
| USD936117S1 (en) | 2013-06-06 | 2021-11-16 | Milwaukee Electric Tool Corporation | Step drill bit |
| US11273501B2 (en) | 2018-04-26 | 2022-03-15 | Milwaukee Electric Tool Corporation | Step drill bit |
| US11691203B2 (en) | 2018-04-26 | 2023-07-04 | Milwaukee Electric Tool Corporation | Step 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: 20061004 Termination date: 20110808 |