CN202114308U - Flat tungsten steel drill - Google Patents
Flat tungsten steel drill Download PDFInfo
- Publication number
- CN202114308U CN202114308U CN2011202107700U CN201120210770U CN202114308U CN 202114308 U CN202114308 U CN 202114308U CN 2011202107700 U CN2011202107700 U CN 2011202107700U CN 201120210770 U CN201120210770 U CN 201120210770U CN 202114308 U CN202114308 U CN 202114308U
- Authority
- CN
- China
- Prior art keywords
- blade
- tungsten steel
- handle
- chip removal
- steel drill
- 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 relates to a flat tungsten steel drill which comprises a blade and a cutter handle which are formed integrally and is characterized in that the flat tungsten steel drill is made of a tungsten steel material; the cutter handle is a cylindrical straight handle; the blade is in a step shape; a transition part is arranged between the blade and the cutter handle; the bottom end of the transition part is a circular table; a cambered chip removal groove is formed from the circular table to the rake face of the blade; the blade is of a two-step type; the part positioned at the front end of the blade is the first step which increases in width step by step; cutting edges of the blade at the first step and the blade at the second step are arranged at the edge of the blade; an edge point is arranged at the top end of the blade at the first step; and a cutting edge at 45 DEG is further arranged at the connection part between the blade at the second step and the transition part.The flat tungsten steel drill has large chip removal space, is smooth in chip removal and has long service life; the blade is step-shaped, so that two step holes with different diameters and an external hole chamfer can be processed at one time, the cutter orientation is not needed again, and the processing precision and working efficiency are greatly improved.
Description
Technical field
The utility model relates to a kind of hole machining tool, particularly a kind of wolfram steel chit drill.
Background technology
At present, on workpiece, carry out coaxial aperture and add man-hour, generally need to use many cutter; Mill out the different hole of diameter respectively, in the process, not only need change cutter; Also need tool setting again, waste time and energy, production efficiency is lower; And owing to error certainly will occur in the tool setting process again, the hole coaxiality deviation that processes is bigger, and machining accuracy is lower.And drill bit of the prior art occurs the bit freezing phenomenon because the chip removal space is little through regular meeting, causes workpiece and drilling bit breakage.
The utility model content
The purpose of the utility model is to overcome above-mentioned technical deficiency, but provides that a kind of one-shot forming two coaxial apertures and chamfering, chip removal space are big, precision and the high chit drill of efficient.
The technical scheme that the utility model technical solution problem is adopted is:
A kind of wolfram steel chit drill, it comprises integrated blade and handle of a knife, it is characterized in that; Said wolfram steel chit drill adopts and processes with the wolfram steel material, and said handle of a knife is a cylindrical staight shank, and said blade is step-like; Be provided with a transition portion between blade and the handle of a knife; Said transition portion bottom is a round platform, is a cambered surface chip area by round platform to blade rake face, and said blade is a two-stage type; Be positioned at the first order that is of blade front end; Its width increases step by step, and wherein, the cutting edge of one-level, secondary blade is arranged at blade edge; And be provided with a blade tip on one-level blade top, secondary blade and transition portion junction also have one be 45
cutting edge that is provided with.
The beneficial effect of the utility model is: 1. this wolfram steel chit drill chip removal space is big, and chip removal is unobstructed, long service life.2. this wolfram steel spade drill blade is step-like, but time processing goes out two different stepped holes of diameter and outer Hole chamfering, need not tool setting again, and machining accuracy and operating efficiency improve greatly.
Description of drawings
Fig. 1 is the stereogram of the utility model wolfram steel chit drill.
Fig. 2 is the vertical view of the utility model wolfram steel chit drill.
The specific embodiment
Embodiment is referring to Fig. 1,2
A kind of wolfram steel chit drill of present embodiment comprises integrated blade 1 and handle of a knife 2, and it adopts with the wolfram steel material and processes; Said handle of a knife is a cylindrical staight shank; Said blade is step-like, is provided with a transition portion 3 between blade and the handle of a knife, and said transition portion 3 bottoms are a round platform; By round platform to blade rake face is a cambered surface chip area 4; Said blade is a two-stage type, is positioned at the first order that is of blade front end, and its width increases step by step; Wherein, The cutting edge 5 of one-level, secondary blade is arranged at blade edge, and is provided with a blade tip 6 on one-level blade top, secondary blade and transition portion junction also have one be 45
cutting edge 7 that is provided with.
Present embodiment wolfram steel chit drill chip removal space is big, and chip removal is unobstructed, long service life.Its blade is step-like, but time processing goes out two different stepped holes of diameter and outer Hole chamfering, need not tool setting again, and machining accuracy and operating efficiency improve greatly.
Claims (1)
1. wolfram steel chit drill, it comprises integrated blade (1) and handle of a knife (2), it is characterized in that; Said wolfram steel chit drill adopts and processes with the wolfram steel material, and said handle of a knife is a cylindrical staight shank, and said blade is step-like; Be provided with a transition portion (3) between blade and the handle of a knife, said transition portion (3) bottom is a round platform, is a cambered surface chip area (4) by round platform to blade rake face; Said blade is a two-stage type, is positioned at the first order that is of blade front end, and its width increases step by step; Wherein, The cutting edge of one-level, secondary blade (5) is arranged at blade edge, and is provided with a blade tip (6) on one-level blade top, secondary blade and transition portion junction also have one be 45 ° of settings cutting edge (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202107700U CN202114308U (en) | 2011-06-21 | 2011-06-21 | Flat tungsten steel drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202107700U CN202114308U (en) | 2011-06-21 | 2011-06-21 | Flat tungsten steel drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202114308U true CN202114308U (en) | 2012-01-18 |
Family
ID=45455406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202107700U Expired - Fee Related CN202114308U (en) | 2011-06-21 | 2011-06-21 | Flat tungsten steel drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202114308U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102672244A (en) * | 2012-04-01 | 2012-09-19 | 哈尔滨飞机工业集团有限责任公司 | Composite flat drill bit for drilling step hole |
| CN103722197A (en) * | 2013-12-24 | 2014-04-16 | 无锡雨田精密工具有限公司 | Tungsten-steel welding spade drill |
| CN104190998A (en) * | 2014-07-30 | 2014-12-10 | 常州创伟工具制造有限公司 | Flat drill |
-
2011
- 2011-06-21 CN CN2011202107700U patent/CN202114308U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102672244A (en) * | 2012-04-01 | 2012-09-19 | 哈尔滨飞机工业集团有限责任公司 | Composite flat drill bit for drilling step hole |
| CN103722197A (en) * | 2013-12-24 | 2014-04-16 | 无锡雨田精密工具有限公司 | Tungsten-steel welding spade drill |
| CN104190998A (en) * | 2014-07-30 | 2014-12-10 | 常州创伟工具制造有限公司 | Flat drill |
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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: 20120118 Termination date: 20120621 |